diff --git a/Basic_viewer/doc/Basic_viewer/Basic_viewer.txt b/Basic_viewer/doc/Basic_viewer/Basic_viewer.txt
index 970ddbd5f5f5..0ef2555f8855 100644
--- a/Basic_viewer/doc/Basic_viewer/Basic_viewer.txt
+++ b/Basic_viewer/doc/Basic_viewer/Basic_viewer.txt
@@ -131,7 +131,7 @@ Example of drawing of a point cloud and a polyhedron in a same viewer.
 \cgalFigureEnd
 
 <!-- /////////////////////////////////////////////////////////////////////////////// -->
-\section BV_BasicViewer The Basic Viewer Class
+\section BV_BasicViewer The Qt Basic Viewer Class
 
 The class `CGAL::Qt::Basic_viewer` is a \qt widget that inherits from `QGLViewer` and mainly stores a `Graphics_scene` and allows to visualize it and interact with the scene. Since this class is a \qt widget, it can be used into more complex \qt code to create more advanced demos.
 
@@ -145,6 +145,23 @@ The result of this example is shown in \cgalFigureRef{basic_viewer_ex5}.
 Example of drawing of two `Basic_viewer` side by side.
 \cgalFigureEnd
 
+<!-- /////////////////////////////////////////////////////////////////////////////// -->
+
+\section BV_GLFW_BasicViewer The GLFW Basic Viewer Class
+
+The class CGAL::GLFW::Basic_viewer is a lightweight, cross-platform viewer built using GLFW, designed for visualizing and interacting with a Graphics_scene. Unlike the Qt-based viewer, this class does not depend on Qt and is suitable for applications where minimal dependencies and straightforward rendering are desired.
+
+In the following example, we create a graphics scene for surface mesh height. Instead of using `show()` to render the scene, we call `make_screenshot()`. This method allows rendering without the need for user interaction. It will save the drawn frame as an image. Before calling this method, we can set different scene parameters such as camera and clipping plane orientation. 
+
+\cgalExample{Basic_viewer/basic_viewer_glfw_screenshot.cpp}
+
+The result of this example is shown in \cgalFigureRef{basic_viewer_glfw_screenshot_example}.
+
+\cgalFigureBegin{basic_viewer_glfw_screenshot_example,basic_viewer_glfw_screenshot.png} 
+Example of a screenshot generated by the Basic_viewer. 
+\cgalFigureEnd
+
+This feature does not work with Wayland. 
 
 <!-- /////////////////////////////////////////////////////////////////////////////// -->
 \section BV_Interactions Adding Interaction
@@ -168,6 +185,7 @@ Two examples of drawing of a mesh with small faces in red. <B>Left</B>: With the
 
 This package was started by Mostafa Ashraf during his 2022 GSoC project. Guillaume Damiand, who mentored the project, reworked large parts of the package, wrote examples and the manual.
 
+
 */
 
 } /* namespace CGAL */
diff --git a/Basic_viewer/doc/Basic_viewer/CGAL/GLFW/Basic_viewer.h b/Basic_viewer/doc/Basic_viewer/CGAL/GLFW/Basic_viewer.h
new file mode 100644
index 000000000000..fda3a672d9ae
--- /dev/null
+++ b/Basic_viewer/doc/Basic_viewer/CGAL/GLFW/Basic_viewer.h
@@ -0,0 +1,419 @@
+namespace CGAL {
+  namespace GLFW {
+
+//------------------------------------------------------------------------------
+/*!
+ \ingroup PkgBasicViewerClasses
+
+The class `Basic_viewer` is an OpenGL (GLFW) viewer that allows visualizing 3D elements such as points, segments, triangles, rays, and lines. This class stores a reference to a `Graphics_scene`, which contains the elements to be visualized. These elements are added through the scene. The class requires `CGAL_GLFW` and is only available if the macro `CGAL_USE_BASIC_VIEWER_GLFW` is defined. Linking with the CMake target `CGAL::CGAL_Basic_viewer_GLFW` will automatically link with `CGAL_GLFW` and add the definition `CGAL_USE_BASIC_VIEWER_GLFW`.
+
+This viewer is designed to be lightweight and easy to use, providing essential 3D visualization capabilities for developers working with CGAL. The input is managed by a class based on GLFW, allowing for cross-platform interaction.
+*/
+class Basic_viewer : public Input
+{
+public:
+  /// \name Constructors
+  /// @{
+
+  /*!
+    \brief Constructs a `Basic_viewer` given a `Graphics_scene` and an optional window title.
+
+    \param scene The graphics scene containing the 3D elements to visualize.
+    \param title The title of the viewer window. Defaults to an empty string.
+  */
+  Basic_viewer(const Graphics_scene& scene,
+               const char* title="");
+
+  /// @}
+
+  /// \name Initialization
+  /// @{
+
+  /*!
+    \brief Initializes the OpenGL context, window, callbacks, and buffers.
+
+    This method is called in the constructor and sets up everything required for the viewer to function. If you intend to use `make_screenshot()` instead of `show()`, you can pass `screenshotOnly=true` to avoid unnecessary initializations such as the event handling system.
+
+    \param screenshotOnly If set to `true`, skips certain initializations. Defaults to `false`.
+  */
+  void initialize(bool screenshotOnly=false);
+
+  /// @}
+
+  /// \name Main Application Loop
+  /// @{
+
+  /*!
+    \brief Starts the application loop to draw the scene and handle events.
+
+    This method blocks the execution, keeping the window open until the user closes it. During this loop, the viewer continuously renders the scene and responds to user input.
+  */
+  void show();
+
+  /*!
+    \brief Draws a single frame and saves it as an image file.
+
+    This function allows you to capture the current view of the scene and save it to a specified file. It can be used to generate screenshots without displaying the interactive viewer.
+
+    \param filePath The path where the screenshot will be saved.
+  */
+  void make_screenshot(const std::string& filePath);
+
+  /// @}
+
+  /// \name Setters
+  /// @{
+
+  /// \brief Sets the window size.
+  /// \param size The size of the window as a 2D vector.
+  void window_size(const Eigen::Vector2f &s);
+
+  /// \brief Sets the size of vertices.
+  /// \param s The size of vertices.
+  void size_vertices(float s);
+
+  /// \brief Sets the size of edges.
+  /// \param s The size of edges.
+  void size_edges(float s); 
+
+  /// \brief Sets the size of rays.
+  /// \param s The size of rays.
+  void size_rays(float s); 
+
+  /// \brief Sets the size of lines.
+  /// \param s The size of lines.
+  void size_lines(float s);
+
+  /// \brief Sets the position of the light.
+  /// \param p The position of the light as a 4D vector.
+  void light_position(const Eigen::Vector4f& p);
+
+  /// \brief Sets the ambient color of the light.
+  /// \param c The ambient color as a 4D vector.
+  void light_ambient(const Eigen::Vector4f& c);
+
+  /// \brief Sets the diffuse color of the light.
+  /// \param c The diffuse color as a 4D vector.
+  void light_diffuse(const Eigen::Vector4f& c);
+
+  /// \brief Sets the specular color of the light.
+  /// \param c The specular color as a 4D vector.
+  void light_specular(const Eigen::Vector4f& c);
+
+  /// \brief Sets the shininess/brightness value of the light.
+  /// \param s The shininess value.
+  void light_shininess(float s);
+  
+  /// \brief Enables or disables the drawing of vertices.
+  /// \param b Set to `true` to enable, `false` to disable.
+  void draw_vertices(bool b);
+
+  /// \brief Enables or disables the drawing of edges.
+  /// \param b Set to `true` to enable, `false` to disable.
+  void draw_edges(bool b);
+
+  /// \brief Enables or disables the drawing of rays.
+  /// \param b Set to `true` to enable, `false` to disable.
+  void draw_rays(bool b);
+
+  /// \brief Enables or disables the drawing of lines.
+  /// \param b Set to `true` to enable, `false` to disable.
+  void draw_lines(bool b);
+
+  /// \brief Enables or disables the drawing of faces.
+  /// \param b Set to `true` to enable, `false` to disable.
+  void draw_faces(bool b);
+
+  /// \brief Enables or disables the clipping plane.
+  /// \param b Set to `true` to enable the clipping plane, `false` to disable.
+  void draw_clipping_plane(bool b);
+
+  /// \brief Enables or disables the drawing of the world axis.
+  /// \param b Set to `true` to enable, `false` to disable.
+  void draw_world_axis(bool b);
+
+  /// \brief Enables or disables the drawing of the XY grid.
+  /// \param b Set to `true` to enable, `false` to disable.
+  void draw_xy_grid(bool b);
+
+  /// \brief Enables or disables the drawing of mesh triangles.
+  /// \param b Set to `true` to enable, `false` to disable.
+  void draw_mesh_triangles(bool b);
+
+  /// \brief Enables or disables the use of a single color for all elements.
+  /// \param b Set to `true` to use a single color, `false` for multiple colors.
+  void use_default_color(bool b);
+
+  /// \brief Enables or disables the use of a single color for all normals.
+  /// \param b Set to `true` to enable, `false` to disable.
+  void use_default_color_normals(bool b);
+
+  /// \brief Enables or disables the printing of the application state to the terminal.
+  /// \param b Set to `true` to enable printing, `false` to disable.
+  void print_application_state(bool b);
+
+  /// \brief Enables or disables the reversal of normals.
+  /// \param b Set to `true` to reverse normals, `false` to keep normals as is.
+  void reverse_normal(bool b);
+
+  /// \brief Enables or disables flat shading (as opposed to smooth shading).
+  /// \param b Set to `true` for flat shading, `false` for smooth shading.
+  void flat_shading(bool b);
+
+  /// \brief Sets the default color of the normals.
+  /// \param c The default color of the normals.
+  void default_color_normals(const CGAL::IO::Color& c);
+
+  /// \brief Sets the height factor value of the normals.
+  /// \param h The height factor value of the normals.
+  void normal_height_factor(float h);
+
+  /// \brief Toggles the drawing of vertices.
+  void toggle_draw_vertices();
+
+  /// \brief Toggles the drawing of edges.
+  void toggle_draw_edges();
+
+  /// \brief Toggles the drawing of rays.
+  void toggle_draw_rays();
+
+  /// \brief Toggles the drawing of lines.
+  void toggle_draw_lines();
+
+  /// \brief Toggles the drawing of faces.
+  void toggle_draw_faces();
+
+  /// \brief Toggles the drawing of the clipping plane.
+  void toggle_draw_clipping_plane();
+
+  /// \brief Toggles the drawing of the world axis.
+  void toggle_draw_world_axis();
+
+  /// \brief Toggles the drawing of the XY grid.
+  void toggle_draw_xy_grid(); 
+
+  /// \brief Toggles the drawing of mesh triangles.
+  void toggle_draw_mesh_triangles(); 
+
+  /// \brief Toggles the use of the default color mode.
+  void toggle_use_default_color();
+
+  /// \brief Toggles the use of the default color mode for normals.
+  void toggle_use_default_color_normal();
+
+  /// \brief Toggles the printing of the application state.
+  void toggle_print_application_state();
+  
+  /// \brief Sets the clipping plane display mode.
+  /// 
+  /// \param m The display mode:
+  /// - `CLIPPING_PLANE_OFF`: Disables the clipping plane.
+  /// - `CLIPPING_PLANE_SOLID_HALF_TRANSPARENT_HALF`: Renders half of the clipped object as solid and half as transparent.
+  /// - `CLIPPING_PLANE_SOLID_HALF_WIRE_HALF`: Renders half of the clipped object as solid and half with wireframe.
+  /// - `CLIPPING_PLANE_SOLID_HALF_ONLY`: Only renders the positive side of the clipped object.
+  void display_mode(DisplayMode m);
+
+  /// \brief Enables the 2D/orthographic camera mode.
+  void two_dimensional(); 
+
+  /// \brief Sets the input manager to AZERTY keyboard layout.
+  void azerty_layout();
+
+  /// \brief Sets the duration of animations.
+  /// \param d The duration of animations as a `std::chrono::milliseconds` object.
+  void animation_duration(std::chrono::milliseconds d);
+
+  /// \brief Sets the radius of the scene.
+  /// \param r The radius of the scene.
+  void scene_radius(float r);
+
+  /// \brief Sets the center of the scene.
+  /// \param x The X-coordinate of the center.
+  /// \param y The Y-coordinate of the center.
+  /// \param z The Z-coordinate of the center.
+  void scene_center(float x, float y, float z);
+
+  /// \brief Sets the center of the scene using a 3D vector.
+  /// \param c The center of the scene as an Eigen vector.
+  void scene_center(const Eigen::Vector3f& c);
+
+  /// \brief Sets the position of the camera.
+  /// \param x The X-coordinate of the camera position.
+  /// \param y The Y-coordinate of the camera position.
+  /// \param z The Z-coordinate of the camera position.
+  void camera_position(float x, float y, float z);
+
+  /// \brief Sets the position of the camera using a 3D vector.
+  /// \param p The camera position as an Eigen vector.
+  void camera_position(const Eigen::Vector3f& p);
+
+  /// \brief Sets the orientation of the camera.
+  /// \param f The forward direction of the camera as an Eigen vector.
+  /// \param u The up vector angle (in degrees) of the camera.
+  void camera_orientation(const Eigen::Vector3f& f, float u);
+
+  /// \brief Sets the zoom level of the camera.
+  /// \param z The zoom level.
+  void zoom(float z);
+
+  /// \brief Aligns the camera forward direction vector to the clipping plane normal.
+  void align_camera_to_clipping_plane();
+
+  /// \brief Sets the orientation of the clipping plane.
+  /// \param n The normal vector of the clipping plane.
+  void clipping_plane_orientation(const Eigen::Vector3f& n);
+
+  /// \brief Translates the clipping plane along its normal.
+  /// \param t The translation amount.
+  void clipping_plane_translate_along_normal(float t);
+
+  /// \brief Translates the clipping plane along the camera forward direction.
+  /// \param t The translation amount.
+  void clipping_plane_translate_along_camera_forward(float t);
+
+  /// \brief Reverses all normals of vertices and faces.
+  void reverse_all_normals();
+
+  /// @}
+
+  /// \name Getters
+  /// @{
+
+  /// \brief Gets the camera position.
+  /// \return The camera position as an Eigen vector.
+  Eigen::Vector3f position() const;
+
+  /// \brief Gets the camera forward direction.
+  /// \return The forward direction as an Eigen vector.
+  Eigen::Vector3f forward() const;
+
+  /// \brief Gets the camera right direction.
+  /// \return The right direction as an Eigen vector.
+  Eigen::Vector3f right() const;
+
+  /// \brief Gets the camera up direction.
+  /// \return The up direction as an Eigen vector.
+  Eigen::Vector3f up() const;
+
+  /// \brief Gets the size of points.
+  /// \return The size of points.
+  float size_vertices() const;
+
+  /// \brief Gets the size of edges.
+  /// \return The size of edges.
+  float size_edges() const;
+  
+  /// \brief Gets the size of rays.
+  /// \return The size of rays.
+  float size_rays() const;
+
+  /// \brief Gets the size of lines.
+  /// \return The size of lines.
+  float size_lines() const;
+
+  /// \brief Gets the position of the light.
+  /// \return The position of the light as a 4D vector.
+  vec4f light_position() const;
+
+  /// \brief Gets the ambient color of the light.
+  /// \return The ambient color as a 4D vector.
+  vec4f light_ambient() const;
+
+  /// \brief Gets the diffuse color of the light.
+  /// \return The diffuse color as a 4D vector.
+  vec4f light_diffuse() const;
+
+  /// \brief Gets the specular color of the light.
+  /// \return The specular color as a 4D vector.
+  vec4f light_specular() const;
+
+  /// \brief Gets the shininess/brightness value of the light.
+  /// \return The shininess value.
+  float light_shininess() const;
+
+  /// \brief Checks if vertices are drawn.
+  /// \return `true` if vertices are drawn, `false` otherwise.
+  bool draw_vertices() const;
+
+  /// \brief Checks if edges are drawn.
+  /// \return `true` if edges are drawn, `false` otherwise.
+  bool draw_edges() const;
+
+  /// \brief Checks if rays are drawn.
+  /// \return `true` if rays are drawn, `false` otherwise.
+  bool draw_rays() const;
+
+  /// \brief Checks if lines are drawn.
+  /// \return `true` if lines are drawn, `false` otherwise.
+  bool draw_lines() const;
+
+  /// \brief Checks if faces are drawn.
+  /// \return `true` if faces are drawn, `false` otherwise.
+  bool draw_faces() const;
+
+  /// \brief Checks if world axis are drawn.
+  /// \return `true` if world axis are drawn, `false` otherwise.
+  bool draw_world_axis() const;
+
+  /// \brief Checks if XY grid is drawn.
+  /// \return `true` if XY grid is drawn, `false` otherwise.
+  bool draw_xy_grid() const;
+
+  /// \brief Checks if mesh triangles are drawn.
+  /// \return `true` if mesh triangles are drawn, `false` otherwise.
+  bool draw_mesh_triangles() const;
+
+  /// \brief Checks if the default color mode is used.
+  /// \return `true` if default color mode is used, `false` otherwise.
+  bool use_default_color() const;
+
+  /// \brief Checks if the default color mode for normals is used.
+  /// \return `true` if default color mode for normals is used, `false` otherwise.
+  bool use_default_color_normal() const;
+
+  /// \brief Checks if normals are reversed.
+  /// \return `true` if normals are reversed, `false` otherwise.
+  bool reverse_normal() const;
+
+  /// \brief Checks if the application state is printed within the console.
+  /// \return `true` if the application state is printed, `false` otherwise.
+  bool print_application_state() const;
+
+  /// \brief Checks if the clipping plane is enabled.
+  /// \return `true` if the clipping plane is enabled, `false` otherwise.
+  bool clipping_plane_enabled() const;
+
+  /// \brief Checks if the camera is in orthographic mode.
+  /// \return `true` if the camera is in orthographic mode, `false` otherwise.
+  bool is_orthographic() const;
+
+  /// \brief Checks if the camera is in orthographic mode and the graphics scene is two-dimensional.
+  /// \return `true` if the camera is in orthographic mode and the scene is 2D, `false` otherwise.
+  bool is_two_dimensional() const;
+
+  /// \brief Gets the clipping plane when enabled.
+  /// \return The clipping plane as a `CGAL::Exact_predicates_inexact_constructions_kernel::Plane_3` object.
+  CGAL::Exact_predicates_inexact_constructions_kernel::Plane_3 clipping_plane() const;
+
+  /// \brief Gets the graphics scene of the viewer.
+  /// \return A reference to the `Graphics_scene` object.
+  const Graphics_scene& graphics_scene() const;
+
+  /// @}
+};
+
+//------------------------------------------------------------------------------
+/*!
+ \ingroup PkgBasicViewerClasses
+
+This function opens a new window and draws the given `Graphics_scene` (which must have been populated beforehand). The `title` parameter allows specifying a title for the window. This function is blocking, meaning that the program execution will continue as soon as the user closes the window. This function requires `CGAL_GLFW`, and is only available if the macro `CGAL_USE_BASIC_VIEWER_GLFW` is defined. Linking with the CMake target `CGAL::CGAL_Basic_viewer_GLFW` will automatically link with `CGAL_GLFW` and add the definition `CGAL_USE_BASIC_VIEWER_GLFW`.
+
+\param graphic_scene The graphics scene to be drawn.
+\param title The title of the window. Defaults to "CGAL Basic Viewer (GLFW)".
+*/
+void draw_graphics_scene(const Graphics_scene& graphic_scene,
+                         const char *title="CGAL Basic Viewer (GLFW)")
+{}
+
+} // End namespace GLFW
+} // End namespace CGAL
diff --git a/Basic_viewer/doc/Basic_viewer/CGAL/Graphics_scene.h b/Basic_viewer/doc/Basic_viewer/CGAL/Graphics_scene.h
index 8d1abd593f81..63ba3413cabe 100644
--- a/Basic_viewer/doc/Basic_viewer/CGAL/Graphics_scene.h
+++ b/Basic_viewer/doc/Basic_viewer/CGAL/Graphics_scene.h
@@ -102,6 +102,36 @@ class Graphics_scene {
 
   /// returns `true` if the scene is in 2D, i.e., lies on the XY or XZ or YZ plane.
   bool is_two_dimensional() const;
+
+  /// set the default color of faces 
+  void set_default_color_face(const CGAL::IO::Color& c);  
+
+  /// set the default color of points 
+  void set_default_color_point(const CGAL::IO::Color& c);  
+
+  /// set the default color of segments 
+  void set_default_color_segment(const CGAL::IO::Color& c);  
+
+  /// set the default color of rays 
+  void set_default_color_ray(const CGAL::IO::Color& c);  
+
+  /// set the default color of lines 
+  void set_default_color_line(const CGAL::IO::Color& c);  
+
+  /// returns the default color of faces  
+  const CGAL::IO::Color &get_default_color_face() const; 
+
+  /// returns the default color of points  
+  const CGAL::IO::Color &get_default_color_point() const; 
+
+  /// returns the default color of segments
+  const CGAL::IO::Color &get_default_color_segment() const; 
+
+  /// returns the default color of rays
+  const CGAL::IO::Color &get_default_color_ray() const; 
+
+  /// returns the default color of lines
+  const CGAL::IO::Color &get_default_color_line() const; 
 };
 
 } // namespace CGAL
diff --git a/Basic_viewer/doc/Basic_viewer/CGAL/Qt/Basic_viewer.h b/Basic_viewer/doc/Basic_viewer/CGAL/Qt/Basic_viewer.h
index 6ff91f29739d..9ac8587e5521 100644
--- a/Basic_viewer/doc/Basic_viewer/CGAL/Qt/Basic_viewer.h
+++ b/Basic_viewer/doc/Basic_viewer/CGAL/Qt/Basic_viewer.h
@@ -5,126 +5,187 @@ namespace CGAL {
 /*!
  \ingroup PkgBasicViewerClasses
 
-The class `Basic_viewer` is a Qt widget based on `QGLViewer` that allows to visualize 3D elements: points, segments, triangles, rays and lines. This class stores a reference to a `Graphics_scene`. Elements are added through the scene. This class requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined. Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`.
+The class `Basic_viewer` is a Qt widget based on `QGLViewer` that allows to visualize 3D elements: points, segments, triangles, rays and lines. This class stores a reference to a `Graphics_scene`. Elements are added through the scene. This class requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER_QT` is defined. Linking with the cmake target `CGAL::CGAL_Basic_viewer` or `CGAL::CGAL_Basic_viewer_Qt` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER` & `CGAL_USE_BASIC_VIEWER_QT`.
 
 CGAL::QGLViewer is our internal fork of <a href="https://github.com/GillesDebunne/libQGLViewer">QGLViewer class</a> which is <em>A versatile 3D OpenGL viewer based on QOpenGLWidget</em>.
 */
 class Basic_viewer : public CGAL::QGLViewer
 {
 public:
+  /// \name Constructors
+  /// @{
+
   /// Constructor given a pointer on a `QWidget` (can be a `nullptr`) and a `Graphics_scene`.
   /// `title` will be the title of the window.
   Basic_viewer(QWidget* parent,
                const Graphics_scene& scene,
                const char* title="");
 
-  /// enables or disables the drawing of vertices.
+  /// @}
+
+  /// \name Setters
+  /// @{
+
+  /// \brief Set size of vertices. 
+  /// \param s The size of vertices.
+  void size_vertices(float s);
+
+  /// \brief Set size of edges. 
+  /// \param s The size of edges.
+  void size_edges(float s); 
+
+  /// \brief Set size of rays. 
+  /// \param s The size of rays.
+  void size_rays(float s); 
+
+  /// \brief Set size of lines. 
+  /// \param s The size of lines.
+  void size_lines(float s); 
+
+  /// \brief Enables or disables the drawing of vertices.
+  /// \param b Set to `true` to enable, `false` to disable.
   void draw_vertices(bool b);
 
-  /// enables or disables the drawing of edges.
+  /// \brief Enables or disables the drawing of edges.
+  /// \param b Set to `true` to enable, `false` to disable.
   void draw_edges(bool b);
 
-  /// enables or disables the drawing of rays.
+  /// \brief Enables or disables the drawing of rays.
+  /// \param b Set to `true` to enable, `false` to disable.
   void draw_rays(bool b);
 
-  /// enables or disables the drawing of lines.
+  /// \brief Enables or disables the drawing of lines.
+  /// \param b Set to `true` to enable, `false` to disable.
   void draw_lines(bool b);
 
-  /// enables or disables the drawing of faces.
+  /// \brief enables or disables the drawing of faces.
+  /// \param b Set to `true` to enable, `false` to disable.
   void draw_faces(bool b);
 
-  /// enables or disables the use of only one color (if `b` is `true`) or the use of multiple colors (if `b` is `false`).
-  void use_mono_color(bool b);
-
   /// enables or disables the drawing of texts.
+  /// \brief enables or disables the drawing of texts.
+  /// \param b Set to `true` to enable, `false` to disable.
   void draw_text(bool b);
 
-  /// sets the color used for vertices in mono color mode.
-  void vertices_mono_color(const CGAL::IO::Color& c);
+  /// \brief Enables or disables the drawing of mesh triangles.
+  /// \param b Set to `true` to enable, `false` to disable.
+  void draw_mesh_triangles(bool b);
+
+  /// \brief Enables or disables the use of only one color or the use of multiple colors.
+  /// \param b Set to `true` to use only one color, `false` to use multiple colors.
+  void use_default_color(bool b);
 
-  /// sets the color used for edges in mono color mode.
-  void edges_mono_color(const CGAL::IO::Color& c);
+  /// \brief Enables or disables the use of a single color for all normals.
+  /// \param b Set to `true` to enable, `false` to disable.
+  void use_default_color_normals(bool b);
 
-  /// sets the color used for rays in mono color mode.
-  void rays_mono_color(const CGAL::IO::Color& c);
+  /// \brief enables or disables the use of flat shading or the use of smooth shading.
+  /// \param b Set to `true` for flat shading, `false` for smooth shading.
+  void flat_shading(bool b);
 
-  /// sets the color used for lines in mono color mode.
-  void lines_mono_color(const CGAL::IO::Color& c);
+  /// \brief Enables or disables the reversal of normals.
+  /// \param b Set to `true` to reverse normals, `false` to keep normals as is.
+  void reverse_normal(bool b);
 
-  /// sets the color used for faces in mono color mode.
-  void faces_mono_color(const CGAL::IO::Color& c);
+  /// \brief Sets the default color of the normals.
+  /// \param c The default color of the normals.
+  void default_color_normals(const CGAL::IO::Color& c);
 
-  /// toggles the drawing of vertices.
+  /// \brief Sets the height factor value of the normals.
+  /// \param h The height factor value of the normals.
+  void normal_height_factor(float h);
+
+  /// \brief Toggles the drawing of vertices.
   void toggle_draw_vertices();
 
-  /// toggles the drawing of edges.
+  /// \brief Toggles the drawing of edges.
   void toggle_draw_edges();
 
-  /// toggles the drawing of rays.
+  /// \brief Toggles the drawing of rays.
   void toggle_draw_rays();
 
-  /// toggles the drawing of lines.
+  /// \brief Toggles the drawing of lines.
   void toggle_draw_lines();
 
-  /// toggles the drawing of faces.
+  /// \brief Toggles the drawing of faces.
   void toggle_draw_faces();
 
-  /// toggles the use of mono color mode.
-  void toggle_use_mono_color();
+  /// \brief Toggles the use of mono color mode.
+  void toggle_use_default_color();
+
+  /// \brief Toggles the use of the default color mode for normals.
+  void toggle_use_default_color_normal();
 
-  /// toggles the drawing of text.
+  /// \brief Toggles the use of flat shading.
+  void toggle_flat_shading();
+
+  /// \brief Toggles the drawing of text.
   void toggle_draw_text();
 
-  /// returns `true` if vertices are drawn.
+  /// \brief Reverses all normals of vertices and faces.
+  void reverse_all_normals();
+
+  /// @}
+
+  /// \name Getters
+  /// @{
+
+  /// \brief Checks if vertices are drawn.
+  /// \return `true` if vertices are drawn, `false` otherwise.
   bool draw_vertices() const;
 
-  /// returns `true` if edges are drawn.
+  /// \brief Checks if edges are drawn.
+  /// \return `true` if edges are drawn, `false` otherwise.
   bool draw_edges() const;
 
-  /// returns `true` if rays are drawn.
+  /// \brief Checks if rays are drawn.
+  /// \return `true` if rays are drawn, `false` otherwise.
   bool draw_rays() const;
 
-  /// returns `true` if lines are drawn.
+  /// \brief Checks if lines are drawn.
+  /// \return `true` if lines are drawn, `false` otherwise.
   bool draw_lines() const;
 
-  /// returns `true` if faces are drawn.
+  /// \brief Checks if faces are drawn.
+  /// \return `true` if faces are drawn, `false` otherwise.
   bool draw_faces() const;
 
-  /// returns `true` if mono color mode is used.
-  bool use_mono_color() const;
-
-  /// returns `true` if normals are reversed.
-  bool reverse_normal() const;
-
-  /// returns `true` if text are drawn.
+  /// \brief Checks if text is drawn.
+  /// \return `true` if text is drawn, `false` otherwise.
   bool draw_text() const;
 
-  /// returns the mono color used for vertices.
-  const CGAL::IO::Color& vertices_mono_color() const;
-
-  /// returns the mono color used for edges.
-  const CGAL::IO::Color& edges_mono_color() const;
-
-  /// returns the mono color used for rays.
-  const CGAL::IO::Color& rays_mono_color() const;
+  /// \brief Checks if the default color mode is used.
+  /// \return `true` if mono color mode is used, `false` otherwise.
+  bool use_default_color() const;
 
-  /// returns the mono color used for lines.
-  const CGAL::IO::Color& lines_mono_color() const;
+  /// \brief Checks if the default color mode for normals is used.
+  /// \return `true` if default color mode for normals is used, `false` otherwise.
+  bool use_default_color_normal() const;
 
-  /// returns the mono color used for faces.
-  const CGAL::IO::Color& faces_mono_color() const;
+  /// \brief Checks if normals are reversed.
+  /// \return `true` if normals are reversed, `false` otherwise.
+  bool reverse_normal() const;
 
-  /// returns `true` if the clipping plane is enabled.
+  /// \brief Checks if the clipping plane is enabled.
+  /// \return `true` if the clipping plane is enabled, `false` otherwise.
   bool clipping_plane_enabled() const;
 
-  /// returns the clipping plane when it is enabled.
+  /// \brief Checks if m_no_2D_mode is false and the graphics scene is two-dimensional.
+  /// \return `true` if m_no_2D_mode is false and the scene is 2D, `false` otherwise.
+  bool is_two_dimensional() const;
+
+  /// \brief Gets the clipping plane when enabled.
+  /// \return The clipping plane as a `CGAL::Exact_predicates_inexact_constructions_kernel::Plane_3` object.
   CGAL::Exact_predicates_inexact_constructions_kernel::Plane_3 clipping_plane() const;
 
-  /// returns the graphics scene of the viewer.
+  /// \brief Gets the graphics scene of the viewer.
+  /// \return A reference to the `Graphics_scene` object.
   const Graphics_scene& graphics_scene() const;
 
-  /// reverses all normals of vertices and faces.
-  void reverse_all_normals();
+  /// @}
+
+  /// \name Draw
+  /// @{
 
   /// draws the viewer without recomputing all internal buffers.
   virtual void draw();
@@ -132,9 +193,12 @@ class Basic_viewer : public CGAL::QGLViewer
   /// redraws the viewer, i.e., recompute all internal buffers and update the window.
   virtual void redraw();
 
+  /// @}
+
   /// Function called when a key is pressed. Users can define their own function in order
   /// to add specific behavior.
   std::function<bool(QKeyEvent *, CGAL::Qt::Basic_viewer *)> on_key_pressed;
+
 };
 
 
@@ -144,7 +208,7 @@ class Basic_viewer : public CGAL::QGLViewer
 
 The class `QApplication_and_basic_viewer` regroups a `Basic_viewer` and Qt `QApplication`. The `QApplication` is created in the constructor, but started by the `run()` method. This allows for example users to modify the `on_key_pressed` method of the `Basic_viewer` to define their own behavior.
 
-This class requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined. Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`.
+This class requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` or `CGAL_USE_BASIC_VIEWER_QT` is defined. Linking with the cmake target `CGAL::CGAL_Basic_viewer` or `CGAL::CGAL_Basic_viewer_Qt` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER` & `CGAL_USE_BASIC_VIEWER_QT`.
 
 */
 class QApplication_and_basic_viewer
diff --git a/Basic_viewer/doc/Basic_viewer/fig/basic_viewer_glfw_screenshot.png b/Basic_viewer/doc/Basic_viewer/fig/basic_viewer_glfw_screenshot.png
new file mode 100644
index 000000000000..365d36d4ef53
Binary files /dev/null and b/Basic_viewer/doc/Basic_viewer/fig/basic_viewer_glfw_screenshot.png differ
diff --git a/Basic_viewer/examples/Basic_viewer/CMakeLists.txt b/Basic_viewer/examples/Basic_viewer/CMakeLists.txt
index 29c492e88641..762d96df3f69 100644
--- a/Basic_viewer/examples/Basic_viewer/CMakeLists.txt
+++ b/Basic_viewer/examples/Basic_viewer/CMakeLists.txt
@@ -9,8 +9,7 @@
 cmake_minimum_required(VERSION 3.12...3.29)
 project(Basic_viewer_Examples)
 
-#CGAL_Qt6 is needed for the drawing.
-find_package(CGAL REQUIRED OPTIONAL_COMPONENTS Qt6)
+find_package(CGAL REQUIRED OPTIONAL_COMPONENTS Qt6 GLFW)
 find_package(Eigen3 3.1.0)
 include(CGAL_Eigen3_support)
 
@@ -20,19 +19,30 @@ create_single_source_cgal_program("draw_several_windows.cpp")
 create_single_source_cgal_program("draw_surface_mesh_height.cpp")
 create_single_source_cgal_program("draw_surface_mesh_small_faces.cpp")
 create_single_source_cgal_program("draw_surface_mesh_vcolor.cpp")
+create_single_source_cgal_program("draw_voronoi_diagram_2.cpp")
+create_single_source_cgal_program("basic_viewer_glfw_screenshot.cpp")
 
 if(CGAL_Qt6_FOUND)
   #link it with the required CGAL libraries
-  target_link_libraries(draw_lcc PUBLIC CGAL::CGAL_Basic_viewer)
-  target_link_libraries(draw_mesh_and_points PUBLIC CGAL::CGAL_Basic_viewer)
-  target_link_libraries(draw_several_windows PUBLIC CGAL::CGAL_Basic_viewer)
-  target_link_libraries(draw_surface_mesh_height PUBLIC CGAL::CGAL_Basic_viewer)
-  target_link_libraries(draw_surface_mesh_small_faces PUBLIC CGAL::CGAL_Basic_viewer)
-  target_link_libraries(draw_surface_mesh_vcolor PUBLIC CGAL::CGAL_Basic_viewer)
+  target_link_libraries(draw_lcc PUBLIC CGAL::CGAL_Basic_viewer_Qt)
+  target_link_libraries(draw_several_windows PUBLIC CGAL::CGAL_Basic_viewer_Qt)
+  target_link_libraries(draw_surface_mesh_small_faces PUBLIC CGAL::CGAL_Basic_viewer_Qt)
+  target_link_libraries(draw_mesh_and_points PUBLIC CGAL::CGAL_Basic_viewer_Qt)
+  target_link_libraries(draw_surface_mesh_vcolor PUBLIC CGAL::CGAL_Basic_viewer_Qt)
+  # target_link_libraries(draw_surface_mesh_height PUBLIC CGAL::CGAL_Basic_viewer_Qt)
 else()
   message("CGAL_Qt6 not configured: examples that require Qt will not be compiled.")
 endif()
 
+if(CGAL_GLFW_FOUND)
+  #link it with the required CGAL libraries
+  target_link_libraries(draw_mesh_and_points PUBLIC CGAL::CGAL_Basic_viewer_GLFW)
+  target_link_libraries(draw_surface_mesh_height PUBLIC CGAL::CGAL_Basic_viewer_GLFW)
+  target_link_libraries(basic_viewer_glfw_screenshot PUBLIC CGAL::CGAL_Basic_viewer_GLFW)
+else()
+  message("CGAL_GLFW not configured: examples that require GLFW will not be compiled.")
+endif()
+
 if(TARGET CGAL::Eigen3_support)
   target_link_libraries(draw_mesh_and_points PUBLIC CGAL::Eigen3_support)
   target_link_libraries(draw_several_windows PUBLIC CGAL::Eigen3_support)
diff --git a/Basic_viewer/examples/Basic_viewer/basic_viewer_glfw_screenshot.cpp b/Basic_viewer/examples/Basic_viewer/basic_viewer_glfw_screenshot.cpp
new file mode 100644
index 000000000000..16d1761b848e
--- /dev/null
+++ b/Basic_viewer/examples/Basic_viewer/basic_viewer_glfw_screenshot.cpp
@@ -0,0 +1,78 @@
+#include <CGAL/Simple_cartesian.h>
+#include <CGAL/Surface_mesh.h>
+#include <CGAL/draw_surface_mesh.h>
+#include <CGAL/Graphics_scene_options.h>
+#include <iostream>
+
+typedef CGAL::Simple_cartesian<double> Kernel;
+typedef Kernel::Point_3                Point;
+typedef CGAL::Surface_mesh<Point>      Mesh;
+
+struct Colored_faces_given_height:
+  public CGAL::Graphics_scene_options<Mesh,
+                                      typename Mesh::Vertex_index,
+                                      typename Mesh::Edge_index,
+                                      typename Mesh::Face_index>
+{
+  Colored_faces_given_height(const Mesh& sm)
+  {
+    if(sm.is_empty()) return;
+
+    double m_min_y=0., m_max_y=0.;
+    bool first=true;
+    for(typename Mesh::Vertex_index vi: sm.vertices())
+    {
+      if(first)
+      { m_min_y=sm.point(vi).y(); m_max_y=m_min_y; first=false; }
+      else
+      {
+        m_min_y=(std::min)(m_min_y, sm.point(vi).y());
+        m_max_y=(std::max)(m_max_y, sm.point(vi).y());
+      }
+    }
+
+    this->colored_face=[](const Mesh &, typename Mesh::Face_index)->bool { return true; };
+
+    this->face_color=[m_min_y, m_max_y]
+      (const Mesh& sm, typename Mesh::Face_index fi)->CGAL::IO::Color
+    {
+      double res=0.;
+      std::size_t n=0;
+      for(typename Mesh::Vertex_index vi: vertices_around_face(sm.halfedge(fi), sm))
+      {
+        res+=sm.point(vi).y();
+        ++n;
+      }
+      // Random color depending on the "height" of the facet
+      CGAL::Random random(static_cast<unsigned int>(30*((res/n)-m_min_y)/(m_max_y-m_min_y)));
+      return CGAL::get_random_color(random);
+    };
+  }
+};
+
+int main(int argc, char* argv[])
+{
+  const std::string filename = (argc>1) ? argv[1] : CGAL::data_file_path("meshes/elephant.off");
+
+  Mesh sm;
+  if(!CGAL::IO::read_polygon_mesh(filename, sm))
+  {
+    std::cerr << "Invalid input file: " << filename << std::endl;
+    return EXIT_FAILURE;
+  }
+
+  // CGAL::draw(sm, Colored_faces_given_height(sm));
+
+  CGAL::Graphics_scene buffer;
+  add_to_graphics_scene(sm, buffer, Colored_faces_given_height(sm));
+  CGAL::Basic_viewer bv(buffer, "Basic viewer"); 
+
+  using DisplayMode = CGAL::GLFW::Basic_viewer::DisplayMode;
+
+  bv.camera_orientation({0, 0, 1}, 180);
+  bv.display_mode(DisplayMode::CLIPPING_PLANE_SOLID_HALF_WIRE_HALF);
+  bv.clipping_plane_orientation({-1, 0, 0});
+  bv.make_screenshot("./screenshot.png");
+
+  return EXIT_SUCCESS;
+}
diff --git a/Basic_viewer/examples/Basic_viewer/draw_mesh_and_points.cpp b/Basic_viewer/examples/Basic_viewer/draw_mesh_and_points.cpp
index e104f016447a..a058026d520f 100644
--- a/Basic_viewer/examples/Basic_viewer/draw_mesh_and_points.cpp
+++ b/Basic_viewer/examples/Basic_viewer/draw_mesh_and_points.cpp
@@ -5,7 +5,7 @@
 #include <CGAL/draw_polyhedron.h>
 #include <CGAL/draw_point_set_3.h>
 #include <CGAL/Graphics_scene_options.h>
-#include <CGAL/Qt/Basic_viewer.h>
+#include <CGAL/Basic_viewer.h>
 
 #include <vector>
 #include <iostream>
diff --git a/Basic_viewer/include/CGAL/Basic_shaders.h b/Basic_viewer/include/CGAL/Basic_shaders.h
index ff7de984625d..ab843a09d3da 100644
--- a/Basic_viewer/include/CGAL/Basic_shaders.h
+++ b/Basic_viewer/include/CGAL/Basic_shaders.h
@@ -17,131 +17,299 @@
 
 namespace CGAL
 {
-
 //------------------------------------------------------------------------------
-const char vertex_source_color[]=R"DELIM(
+const char VERTEX_SOURCE_COLOR[]=R"DELIM(
 #version 150
-in highp vec4 vertex;
-in highp vec3 normal;
-in highp vec3 color;
+in highp   vec3 a_Pos;
+in highp   vec3 a_Normal;
+in mediump vec3 a_Color;
 
-uniform highp mat4 mvp_matrix;
-uniform highp mat4 mv_matrix;
-uniform highp float point_size;
+out highp   vec4 vs_fP; // view space position
+out highp   vec4 ls_fP; // local space position 
+out highp   vec3 fN;
+out mediump vec4 fColor;
 
-out highp vec4 fP;
-out highp vec3 fN;
-out highp vec4 fColor;
-out highp vec4 m_vertex;
+uniform highp   mat4  u_Mvp;
+uniform highp   mat4  u_Mv;
+uniform mediump float u_PointSize;
+uniform mediump vec3  u_DefaultColor; 
+uniform         bool  u_UseDefaultColor; 
 
 void main(void)
-{
-  fP = mv_matrix * vertex;
-  fN = mat3(mv_matrix)* normal;
-  fColor = vec4(color, 1.0);
-  gl_PointSize = point_size;
+{ 
+  fColor = vec4(a_Color, 1.0); 
+  if (u_UseDefaultColor)
+  {
+    fColor = vec4(u_DefaultColor, 1.0);
+  }
+
+  vec4 pos = vec4(a_Pos, 1.0); 
 
-  m_vertex = vertex;
+  ls_fP = pos;
+  vs_fP = u_Mv * pos;
 
-  gl_Position = mvp_matrix * vertex;
+  fN = mat3(u_Mv)* a_Normal;
+
+  gl_Position = u_Mvp * pos;
+  gl_PointSize = u_PointSize;
 }
 )DELIM";
 
-const char fragment_source_color[]=R"DELIM(
+const char FRAGMENT_SOURCE_COLOR[]=R"DELIM(
 #version 150
-in highp vec4 fP;
-in highp vec3 fN;
-in highp vec4 fColor;
-in highp vec4 m_vertex;
-
-uniform highp vec4 light_pos;
-uniform highp vec4 light_diff;
-uniform highp vec4 light_spec;
-uniform highp vec4 light_amb;
-uniform highp float spec_power;
-
-uniform highp vec4 clipPlane;
-uniform highp vec4 pointPlane;
-uniform highp float rendering_mode;
-uniform highp float rendering_transparency;
+in highp   vec4 vs_fP;
+in highp   vec4 ls_fP;
+in highp   vec3 fN;
+in mediump vec4 fColor;
 
-out highp vec4 out_color;
+out mediump vec4 out_color;
+
+uniform highp   vec4  u_LightPos;
+uniform mediump vec4  u_LightDiff;
+uniform mediump vec4  u_LightSpec;
+uniform mediump vec4  u_LightAmb;
+uniform mediump float u_SpecPower;
+
+uniform highp   vec4  u_ClipPlane;
+uniform highp   vec4  u_PointPlane;
+uniform mediump float u_RenderingMode;
+uniform mediump float u_RenderingTransparency;
 
 void main(void)
 {
-  highp vec3 L = light_pos.xyz - fP.xyz;
-  highp vec3 V = -fP.xyz;
+  highp vec3 L = u_LightPos.xyz - vs_fP.xyz;
+  highp vec3 V = -vs_fP.xyz;
 
-  highp vec3 N = normalize(fN);
+  highp vec3 a_Normal = normalize(fN);
   L = normalize(L);
   V = normalize(V);
 
-  highp vec3 R = reflect(-L, N);
-  highp vec4 diffuse = vec4(max(dot(N,L), 0.0) * light_diff.rgb * fColor.rgb, 1.0);
-  highp vec4 ambient = vec4(light_amb.rgb * fColor.rgb, 1.0);
-  highp vec4 specular = pow(max(dot(R,V), 0.0), spec_power) * light_spec;
+  highp vec3 R = reflect(-L, a_Normal);
+  highp vec4 diffuse = vec4(max(dot(a_Normal,L), 0.0) * u_LightDiff.rgb * fColor.rgb, 1.0);
+  highp vec4 ambient = vec4(u_LightAmb.rgb * fColor.rgb, 1.0);
+  highp vec4 specular = pow(max(dot(R,V), 0.0), u_SpecPower) * u_LightSpec;
 
   // onPlane == 1: inside clipping plane, should be solid;
   // onPlane == -1: outside clipping plane, should be transparent;
   // onPlane == 0: on clipping plane, whatever;
-  float onPlane = sign(dot((m_vertex.xyz-pointPlane.xyz), clipPlane.xyz));
+  float onPlane = sign(dot((ls_fP.xyz-u_PointPlane.xyz), u_ClipPlane.xyz));
 
   // rendering_mode == -1: draw all solid;
   // rendering_mode == 0: draw solid only;
   // rendering_mode == 1: draw transparent only;
-  if (rendering_mode == (onPlane+1)/2) {
+  if (u_RenderingMode == (onPlane+1)/2) {
     // discard other than the corresponding half when rendering
     discard;
   }
 
   // draw corresponding part
-  out_color = rendering_mode < 1 ? (diffuse + ambient) :
-                      vec4(diffuse.rgb + ambient.rgb, rendering_transparency);
+  out_color = u_RenderingMode < 1 ? (diffuse + ambient) :
+                      vec4(diffuse.rgb + ambient.rgb, u_RenderingTransparency);
 }
 )DELIM";
 
-const char vertex_source_p_l[]=R"DELIM(
+const char VERTEX_SOURCE_P_L[]=R"DELIM(
 #version 150
-in highp vec4 vertex;
-in highp vec3 color;
+in highp   vec3 a_Pos;
+in mediump vec3 a_Color;
+
+out mediump vec4 fColor; 
+out highp   vec4 ls_fP; // local space 
 
-uniform highp mat4 mvp_matrix;
-uniform highp float point_size;
+uniform highp   mat4  u_Mvp;
+uniform mediump float u_PointSize;
+uniform         bool  u_IsOrthographic;
+uniform mediump vec3  u_DefaultColor; 
+uniform         bool  u_UseDefaultColor; 
 
-out highp vec4 fColor;
-out highp vec4 m_vertex;
+bool EqualZero(float value)
+{
+  return abs(value) < 0.00001;
+}
 
 void main(void)
 {
-  gl_PointSize = point_size;
-  fColor = vec4(color, 1.0);
-  m_vertex = vertex;
-  gl_Position = mvp_matrix * vertex;
+  fColor = vec4(a_Color, 1.0); 
+  if (u_UseDefaultColor)
+  {
+    fColor = vec4(u_DefaultColor, 1.0);
+  }
+
+  vec4 pos = vec4(a_Pos, 1.0); 
+
+  ls_fP  = pos;
+
+  gl_Position  = u_Mvp * pos;
+
+  float distance = gl_Position.w;
+  if (u_IsOrthographic) 
+  {
+    distance = u_PointSize;
+  } 
+
+  float effectiveDistance = EqualZero(distance) ? 0.00001 : distance;
+  gl_PointSize = u_PointSize / effectiveDistance * 5.0;
 }
 )DELIM";
 
-const char fragment_source_p_l[]=R"DELIM(
+const char VERTEX_SOURCE_SHAPE[]=R"DELIM(
 #version 150
-in highp vec4 fColor;
-in highp vec4 m_vertex;
+in highp   vec3 a_Pos;
+in mediump vec3 a_Color;
 
-uniform highp vec4 clipPlane;
-uniform highp vec4 pointPlane;
-uniform highp float rendering_mode;
+out mediump vec4 gColor; 
+out highp   vec4 ls_fP; 
 
-out highp vec4 out_color;
+uniform highp   mat4 u_Mvp;
+uniform mediump vec3 u_DefaultColor;
+uniform         bool u_UseDefaultColor;
+
+void main(void)
+{
+  gColor = vec4(a_Color, 1.0);
+  if (u_UseDefaultColor)
+  {
+    gColor = vec4(u_DefaultColor, 1.0);
+  }
+
+  gl_Position = vec4(a_Pos, 1.0);
+}
+)DELIM";
+
+const char GEOMETRY_SOURCE_SPHERE[]=R"DELIM(
+#version 150 
+layout(points) in; 
+layout(triangle_strip, max_vertices = 72) out; // max_vertices = (resolution+1) * 2 * latResolution 
+
+#define PI 3.14159265358979323846
+
+in mediump vec4 gColor[];
+
+out mediump vec4 fColor;
+out highp   vec4 ls_fP;
+
+uniform highp   mat4 u_Mvp;
+uniform mediump float u_Radius;
+
+void drawSphere(in vec4 center, in float radius, in float resolution)
+{
+  float latResolution = resolution*0.5;
+  float stepTheta = PI/latResolution;
+  float stepPhi = 2*PI/resolution;
+  for(int i=0; i<latResolution; ++i)
+  {
+    float theta1 = stepTheta*i;
+    float theta2 = stepTheta*(i+1);
+    for(int j=0; j<=resolution; ++j)
+    {
+      float phi = stepPhi*j;
+      float x1 = center.x + radius * sin(theta1) * cos(phi);
+      float y1 = center.y + radius * sin(theta1) * sin(phi);
+      float z1 = center.z + radius * cos(theta1);
+      ls_fP = vec4(x1, y1, z1, 1.0);
+      gl_Position = u_Mvp * ls_fP;
+      EmitVertex();
+
+      float x2 = center.x + radius * sin(theta2) * cos(phi);
+      float y2 = center.y + radius * sin(theta2) * sin(phi);
+      float z2 = center.z + radius * cos(theta2); 
+      ls_fP = vec4(x2, y2, z2, 1.0);
+      gl_Position = u_Mvp * ls_fP;
+      EmitVertex();
+    }
+    EndPrimitive();
+  }
+}
+
+void main(void)
+{
+  fColor = gColor[0];
+
+  int resolution = 8;
+  vec4 center = gl_in[0].gl_Position; 
+
+  drawSphere(center, u_Radius, resolution);
+}
+)DELIM";
+
+const char GEOMETRY_SOURCE_CYLINDER[]=R"DELIM(
+#version 150 
+layout(lines) in; 
+layout(triangle_strip, max_vertices = 22) out; 
+
+#define PI 3.14159265358979323846
+
+in mediump vec4 gColor[];
+
+out mediump vec4 fColor;
+out highp   vec4 ls_fP;
+
+uniform highp   mat4 u_Mvp;
+uniform mediump float u_Radius;
+
+void drawCylinder(in vec3 u, in vec3 v, in vec4 bot, in vec4 top, in float radius, in float resolution)
+{
+  float step = 2*PI/resolution;
+  for(int i=0; i<=resolution; ++i)
+  {
+    float theta = step*i;
+    float cosf = radius*cos(theta);
+    float sinf = radius*sin(theta);
+    vec3 xAxis = cosf*u.xyz;
+    vec3 yAxis = sinf*v.xyz;
+    ls_fP = vec4(top.xyz+xAxis.xyz+yAxis.xyz, 1.0);
+    gl_Position = u_Mvp * ls_fP;
+    EmitVertex();
+    ls_fP = vec4(bot.xyz+xAxis.xyz+yAxis.xyz, 1.0);
+    gl_Position = u_Mvp * ls_fP;
+    EmitVertex();
+  }
+  EndPrimitive(); 
+}
+
+void main(void)
+{
+  fColor = gColor[0];
+
+  vec4 a = gl_in[0].gl_Position;
+  vec4 b = gl_in[1].gl_Position;
+
+  vec3 n = normalize(vec3(b.x-a.x, b.y-a.y, b.z-a.z)); // compute top normal 
+  
+  vec3 w = normalize(vec3(-n.z, n.x, n.y));
+
+  // Axis vectors 
+  vec3 u = normalize(cross(n, w));
+  vec3 v = normalize(cross(n, u));
+
+  int resolution = 10;
+
+  drawCylinder(u, v, a, b, u_Radius, resolution);
+}
+)DELIM";
+
+const char FRAGMENT_SOURCE_P_L[]=R"DELIM(
+#version 150
+in mediump vec4 fColor;
+in highp   vec4 ls_fP;
+
+out mediump vec4 out_color;
+
+uniform highp   vec4  u_ClipPlane;
+uniform highp   vec4  u_PointPlane;
+uniform mediump float u_RenderingMode;
 
 void main(void)
 {
   // onPlane == 1: inside clipping plane, should be solid;
   // onPlane == -1: outside clipping plane, should be transparent;
   // onPlane == 0: on clipping plane, whatever;
-  float onPlane = sign(dot((m_vertex.xyz-pointPlane.xyz), clipPlane.xyz));
+  float onPlane = sign(dot((ls_fP.xyz-u_PointPlane.xyz), u_ClipPlane.xyz));
 
   // rendering_mode == -1: draw both inside and outside;
   // rendering_mode == 0: draw inside only;
   // rendering_mode == 1: draw outside only;
-  if (rendering_mode == (onPlane+1)/2) {
+  if (u_RenderingMode == (onPlane+1)/2) {
     // discard other than the corresponding half when rendering
     discard;
   }
@@ -150,106 +318,554 @@ void main(void)
 }
 )DELIM";
 
-const char vertex_source_clipping_plane[]=R"DELIM(
+const char VERTEX_SOURCE_CLIPPING_PLANE[]=R"DELIM(
 #version 150
-in highp vec4 vertex;
+in highp vec3 a_Pos;
 
-uniform highp mat4 vp_matrix;
-uniform highp mat4 m_matrix;
+uniform highp mat4 u_Vp;
+uniform highp mat4 u_M;
 
 void main(void)
 {
-  gl_Position = vp_matrix * m_matrix * vertex;
+  gl_Position = u_Vp * u_M * vec4(a_Pos, 1.0);
 }
 )DELIM";
 
-const char fragment_source_clipping_plane[]=R"DELIM(
+const char FRAGMENT_SOURCE_CLIPPING_PLANE[]=R"DELIM(
 #version 150
-out highp vec4 out_color;
+
+out mediump vec4 out_color;
+
 void main(void)
 {
   out_color = vec4(0.0, 0.0, 0.0, 1.0);
 }
 )DELIM";
 
+const char VERTEX_SOURCE_LINE[]=R"DELIM(
+#version 150
+in highp   vec3 a_Pos;
+in mediump vec3 a_Color;
+
+out VS_OUT {
+  mediump vec4 color;
+} vs_out; // vertex shader output
+
+uniform mediump vec3 u_DefaultColor; 
+uniform         bool u_UseDefaultColor; 
+
+void main(void)
+{
+  vs_out.color = vec4(a_Color, 1.0);
+  if (u_UseDefaultColor)
+  {
+    vs_out.color = vec4(u_DefaultColor, 1.0);
+  }
+
+  gl_Position = vec4(a_Pos, 1.0);
+}
+)DELIM";
+
+const char GEOMETRY_SOURCE_ARROW[]=R"DELIM(
+#version 150
+layout(lines) in; 
+layout(triangle_strip, max_vertices = 82) out; // max_vertices = resolution * 2 + 2 (cylinder) + resolution * 3 (disc) + resolution * 3 (cone)
+
+#define PI 3.14159265358979323846
+
+in VS_OUT {
+  mediump vec4 color; 
+} gs_in[]; // geometry shader input
+
+out mediump vec4 fColor; 
+
+uniform highp   mat4  u_Mvp;
+uniform mediump float u_SceneRadius;
+
+void drawTriangle(in vec4 v1, in vec4 v2, in vec4 v3)
+{
+  gl_Position = u_Mvp*v1;
+  EmitVertex();
+  gl_Position = u_Mvp*v2;
+  EmitVertex();
+  gl_Position = u_Mvp*v3;
+  EmitVertex();
+  EndPrimitive();
+}
+
+void drawTriangleFan(in vec3 u, in vec3 v, in vec4 center, in vec4 edge0, in float radius, in int resolution)
+{
+  float step = 2*PI/resolution;
+  for(int i=0; i<resolution; ++i)
+  {
+    float theta = step*i;
+    float cosf = radius*cos(theta);
+    float sinf = radius*sin(theta);
+    vec3 xAxis = cosf*u.xyz;
+    vec3 yAxis = sinf*v.xyz;
+    vec4 edge1 = vec4(edge0.xyz+xAxis.xyz+yAxis.xyz, 1.0);
+    theta = step*(i+1);
+    cosf = radius*cos(theta);
+    sinf = radius*sin(theta);
+    xAxis = cosf*u.xyz;
+    yAxis = sinf*v.xyz;
+    vec4 edge2 = vec4(edge0.xyz+xAxis.xyz+yAxis.xyz, 1.0);
+    drawTriangle(center, edge1, edge2);
+  } 
+}
+
+void drawDisc(in vec3 u, in vec3 v, in vec4 center, in float radius, in int resolution)
+{
+  drawTriangleFan(u, v, center, center, radius, resolution);
+}
+
+void drawCone(in vec3 u, in vec3 v, in vec3 n, in vec4 center, in float radius, in float height, in int resolution)
+{
+  drawTriangleFan(u, v, center, vec4(center.xyz-height*n.xyz, 1.0), radius, resolution);
+}
+
+void drawCylinder(in vec3 u, in vec3 v, in vec4 bot, in vec4 top, in float radius, in float resolution)
+{
+  float step = 2*PI/resolution;
+  for(int i=0; i<=resolution; ++i)
+  {
+    float theta = step*i;
+    float cosf = radius*cos(theta);
+    float sinf = radius*sin(theta);
+    vec3 xAxis = cosf*u.xyz;
+    vec3 yAxis = sinf*v.xyz;
+    gl_Position = u_Mvp * vec4(top.xyz+xAxis.xyz+yAxis.xyz, 1.0);
+    EmitVertex();
+    gl_Position = u_Mvp * vec4(bot.xyz+xAxis.xyz+yAxis.xyz, 1.0);
+    EmitVertex();
+  }
+  EndPrimitive(); 
+}
+
+void main(void)
+{
+  fColor = gs_in[0].color;
+
+  vec4 a = gl_in[0].gl_Position;
+  vec4 b = gl_in[1].gl_Position;
+
+  vec3 n = normalize(vec3(b.x-a.x, b.y-a.y, b.z-a.z)); // compute top normal 
+  vec3 w = normalize(vec3(-n.z, n.x, n.y));
+
+  // Axis vectors 
+  vec3 u = normalize(cross(n, w));
+  vec3 v = normalize(cross(n, u));
+
+  float radius = 0.013 * u_SceneRadius;
+  float height = 0.035 * u_SceneRadius;
+  int resolution = 10;
+
+  vec4 c = vec4(b.xyz-height*n.xyz, 1.0);
+  drawDisc(u, v, c, radius, resolution);
+  drawCone(u, v, n, b, radius, height, resolution);
+  drawCylinder(u, v, a, c, radius*0.5, resolution);
+}
+)DELIM";
+
+const char GEOMETRY_SOURCE_LINE[]=R"DELIM(
+#version 150
+layout(lines) in; 
+layout(line_strip, max_vertices = 2) out; 
+
+in VS_OUT {
+  mediump vec4 color;
+} gs_in[]; // geometry shader input
+
+out mediump vec4 fColor; 
+
+uniform highp mat4 u_Mvp;
+
+void main(void)
+{
+  fColor = gs_in[0].color;
+
+  gl_Position = u_Mvp * gl_in[0].gl_Position;
+  EmitVertex(); 
+  gl_Position = u_Mvp * gl_in[1].gl_Position; 
+  EmitVertex(); 
+
+  EndPrimitive(); 
+}
+)DELIM";
+
+const char FRAGMENT_SOURCE_LINE[]=R"DELIM(
+#version 150
+
+in mediump vec4 fColor;
+
+out mediump vec4 out_color;
+
+void main(void)
+{
+  out_color = fColor;
+}
+)DELIM";
+
+const char VERTEX_SOURCE_NORMAL[]=R"DELIM(
+#version 150
+in highp vec3 a_Pos;
+in highp vec3 a_Normal;
+
+out VS_OUT {
+  mediump vec4  color;
+  highp   vec3  normal;
+} vs_out; // vertex shader output
+ 
+uniform highp   mat4 u_Mv;
+uniform mediump vec3 u_DefaultColor;
+uniform         bool u_UseDefaultColor;
+
+void main(void)
+{
+  vs_out.color = vec4(abs(normalize(a_Normal)), 1.0); 
+  if (u_UseDefaultColor)
+  {
+    vs_out.color = vec4(u_DefaultColor, 1.0); 
+  }
+
+  mat3 normalMatrix = mat3(transpose(inverse(u_Mv)));
+  vs_out.normal = normalize(vec3(vec4(normalMatrix * a_Normal, 0.0)));
+  
+  gl_Position = vec4(a_Pos, 1.0); 
+}
+)DELIM";
+
+const char GEOMETRY_SOURCE_NORMAL[]=R"DELIM(
+#version 150 
+layout (triangles) in;
+layout (line_strip, max_vertices = 6) out;
+
+in VS_OUT {
+  mediump vec4  color;
+  highp   vec3  normal;
+} gs_in[]; // geometry shader input
+
+out mediump vec4 fColor;
+out highp   vec4 ls_fP;
+
+uniform highp   mat4  u_Projection;
+uniform mediump float u_Factor;
+uniform mediump float u_SceneRadius;
+uniform highp   mat4  u_Mv;
+uniform bool          u_DisplayFaceNormal;
+
+void GenerateLine(int index)
+{
+  fColor = gs_in[index].color; 
+  
+  ls_fP = gl_in[index].gl_Position;
+  gl_Position = u_Projection * u_Mv * gl_in[index].gl_Position;
+  EmitVertex();
+
+  vec4 newPosition = u_Mv * gl_in[index].gl_Position + vec4(gs_in[index].normal, 0.0) * u_SceneRadius * u_Factor;
+  ls_fP = inverse(u_Mv) * newPosition;
+  gl_Position = u_Projection * newPosition;
+  EmitVertex();
+
+  EndPrimitive();
+}
+
+void DrawVerticesNormal()
+{
+  GenerateLine(0); // first vertex normal
+  GenerateLine(1); // second vertex normal
+  GenerateLine(2); // third vertex normal
+}
+
+void DrawFaceNormal()
+{
+  fColor = (gs_in[0].color + gs_in[1].color + gs_in[2].color) / 3; 
+  vec4 center = (gl_in[0].gl_Position + gl_in[1].gl_Position + gl_in[2].gl_Position) / 3;
+  ls_fP = center;
+  gl_Position = u_Projection * u_Mv * center;
+  EmitVertex();
+
+  vec3 n = normalize((gs_in[0].normal.xyz + gs_in[1].normal.xyz + gs_in[2].normal.xyz) / 3);
+
+  vec4 newPosition = u_Mv * center + vec4(n, 0.0) * u_SceneRadius * u_Factor;
+  ls_fP = inverse(u_Mv) * newPosition;
+  gl_Position = u_Projection * newPosition;
+  EmitVertex();
+}
+
+void main()
+{
+  if (u_DisplayFaceNormal)
+  {
+    DrawFaceNormal();
+  }
+  else 
+  {
+    DrawVerticesNormal();
+  }
+}
+)DELIM";
+
+const char VERTEX_SOURCE_TRIANGLE[]=R"DELIM(
+#version 150
+in highp   vec3 a_Pos;
+
+out VS_OUT {
+  mediump vec4 color; 
+  highp   vec4 ls_fP; 
+} vs_out;
+
+uniform highp mat4 u_Mvp;
+
+void main(void)
+{
+  vec4 pos = vec4(a_Pos, 1.0);
+
+  vs_out.color = vec4(0.85, 0.85, 0.85, 1.0);
+  vs_out.ls_fP = pos;
+
+  gl_Position = u_Mvp * pos;
+}
+)DELIM";
+
+const char GEOMETRY_SOURCE_TRIANGLE[]=R"DELIM(
+#version 150
+layout (triangles) in;
+layout (line_strip, max_vertices=4) out; 
+
+in VS_OUT {
+  mediump vec4 color; 
+  highp   vec4 ls_fP; 
+} gs_in[];
+
+out mediump vec4 fColor; 
+out highp   vec4 ls_fP; 
+
+void main(void)
+{
+  fColor = gs_in[0].color; 
+  ls_fP = gs_in[0].ls_fP;
+  gl_Position = gl_in[0].gl_Position; 
+  EmitVertex(); 
+
+  ls_fP = gs_in[1].ls_fP;
+  gl_Position = gl_in[1].gl_Position; 
+  EmitVertex(); 
+
+  ls_fP = gs_in[2].ls_fP;
+  gl_Position = gl_in[2].gl_Position; 
+  EmitVertex(); 
+
+  ls_fP = gs_in[0].ls_fP;
+  gl_Position = gl_in[0].gl_Position; 
+  EmitVertex(); 
+}
+)DELIM";
+
+const char VERTEX_SOURCE_LINE_WIDTH[]=R"DELIM(
+#version 150
+
+in highp   vec3 a_Pos; 
+in mediump vec3 a_Color;
+ 
+out VS_OUT {
+  mediump float pointSize; 
+  mediump vec4 color; 
+  highp   vec4 ls_fP; 
+} vs_out; 
+
+uniform highp   mat4  u_Mvp;
+uniform mediump float u_PointSize;
+uniform         bool  u_IsOrthographic;
+uniform mediump vec3  u_DefaultColor;
+uniform         bool  u_UseDefaultColor;
+
+bool EqualZero(float value)
+{
+  return abs(value) < 0.00001;
+}
+
+void main(void)
+{
+  vec4 pos = vec4(a_Pos, 1.0);
+
+  vs_out.ls_fP = pos;
+  vs_out.color = vec4(a_Color, 1.0); 
+  if (u_UseDefaultColor)
+  {
+    vs_out.color = vec4(u_DefaultColor, 1.0);
+  }
+
+  gl_Position  = u_Mvp * pos;
+
+  float distance = gl_Position.w;
+  if (u_IsOrthographic) 
+  {
+    distance = u_PointSize;
+  } 
+
+  float effectiveDistance = EqualZero(distance) ? 0.00001 : distance;
+  vs_out.pointSize = u_PointSize / effectiveDistance;
+}
+)DELIM";
+
+const char GEOMETRY_SOURCE_LINE_WIDTH[]=R"DELIM(
+#version 150
+layout (lines) in;
+layout (triangle_strip, max_vertices = 4) out;
+
+in mediump vec4 g_Color[]; 
+
+in VS_OUT {
+  mediump float pointSize; 
+  mediump vec4 color; 
+  highp   vec4 ls_fP; 
+} gs_in[]; 
+
+out mediump vec4 fColor; 
+out highp   vec4 ls_fP; 
+
+uniform mediump float u_PointSize; 
+uniform mediump vec2  u_Viewport;
+uniform highp   mat4  u_Mvp;
+
+vec2 ToScreenSpace(vec4 vertex)
+{
+  return vec2(vertex.xy / vertex.w) * u_Viewport; 
+}
+
+vec4 ToWorldSpace(vec4 vertex)
+{
+  return vec4((vertex.xy * vertex.w) / u_Viewport, vertex.zw); 
+}
+
+void main(void)
+{
+  vec2 p0 = ToScreenSpace(gl_in[0].gl_Position);
+  vec2 p1 = ToScreenSpace(gl_in[1].gl_Position);
+  vec2 v0 = normalize(p1 - p0);
+  vec2 n0 = vec2(-v0.y, v0.x) * u_PointSize * 0.5;
+  
+  // line start
+  gl_Position = ToWorldSpace(vec4(p0 - n0 * gs_in[0].pointSize, gl_in[0].gl_Position.zw)); 
+  fColor = gs_in[0].color;
+  ls_fP = inverse(u_Mvp) * gl_Position;
+  EmitVertex();
+  
+  gl_Position = ToWorldSpace(vec4(p0 + n0 * gs_in[0].pointSize, gl_in[0].gl_Position.zw));
+  fColor = gs_in[0].color;
+  ls_fP = inverse(u_Mvp) * gl_Position;
+  EmitVertex();
+  
+  // line end
+  gl_Position = ToWorldSpace(vec4(p1 - n0 * gs_in[1].pointSize, gl_in[1].gl_Position.zw));
+  fColor = gs_in[1].color;
+  ls_fP = inverse(u_Mvp) * gl_Position;
+  EmitVertex();
+  
+  gl_Position = ToWorldSpace(vec4(p1 + n0 * gs_in[1].pointSize, gl_in[1].gl_Position.zw));
+  fColor = gs_in[1].color;
+  ls_fP = inverse(u_Mvp) * gl_Position;
+  EmitVertex();
+}
+)DELIM";
+
 //------------------------------------------------------------------------------
 //  compatibility shaders
 
-const char vertex_source_color_comp[]=R"DELIM(
-varying highp vec4 vertex;
-varying highp vec3 normal;
-varying highp vec3 color;
+const char VERTEX_SOURCE_COLOR_COMP[]=R"DELIM(
+varying highp   vec3 a_Pos;
+varying highp   vec3 a_Normal;
+varying mediump vec3 a_Color;
 
-uniform highp mat4 mvp_matrix;
-uniform highp mat4 mv_matrix;
-uniform highp float point_size;
+varying highp   vec4 vs_fP; // view space position
+varying highp   vec3 fN;
+varying mediump vec4 fColor;
 
-varying highp vec4 fP;
-varying highp vec3 fN;
-varying highp vec4 fColor;
+uniform highp   mat4  u_Mvp;
+uniform highp   mat4  u_Mv;
+uniform mediump float u_PointSize;
+uniform mediump vec3  u_DefaultColor;
+uniform         bool  u_UseDefaultColor;
 
 void main(void)
 {
-  fP = mv_matrix * vertex;
+  vec4 pos = vec4(a_Pos, 1.0);
+
+  vs_fP = u_Mv * pos;
   highp mat3 mv_matrix_3;
   mv_matrix_3[0] = mv_matrix[0].xyz;
   mv_matrix_3[1] = mv_matrix[1].xyz;
   mv_matrix_3[2] = mv_matrix[2].xyz;
-  fN = mv_matrix_3* normal;
-  fColor = vec4(color, 1.0);
-  gl_PointSize = point_size;
+  fN = mv_matrix_3* a_Normal;
 
-  gl_Position = mvp_matrix * vertex;
+  fColor = vec4(a_Color, 1.0);
+  if (u_UseDefaultColor)
+  {
+    fColor = vec4(u_DefaultColor, 1.0);
+  }
+
+  gl_PointSize = u_PointSize;
+
+  gl_Position = u_Mvp * pos;
 }
 )DELIM";
 
-const char fragment_source_color_comp[]=R"DELIM(
-varying highp vec4 fP;
-varying highp vec3 fN;
-varying highp vec4 fColor;
+const char FRAGMENT_SOURCE_COLOR_COMP[]=R"DELIM(
+varying highp   vec4 vs_fP;
+varying highp   vec3 fN;
+varying mediump vec4 fColor;
 
-uniform highp vec4 light_pos;
-uniform highp vec4 light_diff;
-uniform highp vec4 light_spec;
-uniform highp vec4 light_amb;
-uniform highp float spec_power ;
+uniform highp   vec4 u_LightPos;
+uniform mediump vec4 u_LightDiff;
+uniform mediump vec4 u_LightSpec;
+uniform mediump vec4 u_LightAmb;
+uniform mediump float u_SpecPower ;
 
 void main(void)
 {
-  highp vec3 L = light_pos.xyz - fP.xyz;
-  highp vec3 V = -fP.xyz;
+  highp vec3 L = u_LightPos.xyz - vs_fP.xyz;
+  highp vec3 V = -vs_fP.xyz;
 
-  highp vec3 N = normalize(fN);
+  highp vec3 a_Normal = normalize(fN);
   L = normalize(L);
   V = normalize(V);
 
-  highp vec3 R = reflect(-L, N);
-  highp vec4 diffuse = max(dot(N,L), 0.0) * light_diff * fColor;
-  highp vec4 specular = pow(max(dot(R,V), 0.0), spec_power) * light_spec;
+  highp vec3 R = reflect(-L, a_Normal);
+  highp vec4 diffuse = max(dot(a_Normal,L), 0.0) * u_LightDiff * fColor;
+  highp vec4 specular = pow(max(dot(R,V), 0.0), u_SpecPower) * u_LightSpec;
 
-  gl_FragColor = light_amb*fColor + diffuse;
+  gl_FragColor = u_LightAmb*fColor + diffuse;
 }
 )DELIM";
 
-const char vertex_source_p_l_comp[]=R"DELIM(
-varying highp vec4 vertex;
-varying highp vec3 color;
+const char VERTEX_SOURCE_P_L_COMP[]=R"DELIM(
+varying highp   vec3 a_Pos;
+varying mediump vec3 a_Color;
 
-uniform highp mat4 mvp_matrix;
-uniform highp float point_size;
+varying mediump vec4 fColor;
 
-varying highp vec4 fColor;
+uniform highp   mat4  u_Mvp;
+uniform mediump float u_PointSize;
+uniform mediump vec3  u_DefaultColor;
+uniform         bool  u_UseDefaultColor;
 
 void main(void)
 {
-  gl_PointSize = point_size;
-  fColor = vec4(color, 1.0);
-  gl_Position = mvp_matrix * vertex;
+  fColor = vec4(a_Color, 1.0);
+  if (u_UseDefaultColor)
+  {
+    fColor = vec4(u_DefaultColor, 1.0);
+  }
+
+  gl_PointSize = u_PointSize;
+  gl_Position = u_Mvp * vec4(a_Pos, 1.0);
 }
 )DELIM";
 
-const char fragment_source_p_l_comp[]=R"DELIM(
-varying highp vec4 fColor;
+const char FRAGMENT_SOURCE_P_L_COMP[]=R"DELIM(
+varying mediump vec4 fColor;
+
 void main(void)
 {
   gl_FragColor = fColor;
diff --git a/Basic_viewer/include/CGAL/Basic_viewer.h b/Basic_viewer/include/CGAL/Basic_viewer.h
new file mode 100644
index 000000000000..c1f11c971ca9
--- /dev/null
+++ b/Basic_viewer/include/CGAL/Basic_viewer.h
@@ -0,0 +1,17 @@
+#include <CGAL/Graphics_scene.h>
+
+#if defined(CGAL_USE_BASIC_VIEWER_QT) || defined(CGAL_USE_BASIC_VIEWER)
+#include <CGAL/Qt/Basic_viewer.h>
+#elif defined(CGAL_USE_BASIC_VIEWER_GLFW)
+#include <CGAL/GLFW/Basic_viewer.h>
+#else 
+namespace CGAL
+{
+  inline
+  void draw_graphics_scene(const Graphics_scene&,
+                           const char* ="CGAL Basic Viewer (GLFW)")
+  {
+    std::cerr<<"Impossible to draw, CGAL_USE_BASIC_VIEWER is not defined."<<std::endl;
+  }
+} // End namespace CGAL
+#endif
diff --git a/Basic_viewer/include/CGAL/Buffer_for_vao.h b/Basic_viewer/include/CGAL/Buffer_for_vao.h
index d7c9619619ad..98d85c16c222 100644
--- a/Basic_viewer/include/CGAL/Buffer_for_vao.h
+++ b/Basic_viewer/include/CGAL/Buffer_for_vao.h
@@ -145,7 +145,7 @@ namespace internal
         {
           typename CDT::Edge e(fh,i);
           auto n = fh->neighbor(i);
-          if (n->info().m_nesting_level==-1)
+          if (n!=nullptr && n->info().m_nesting_level==-1)
           {
             if (tri.is_constrained(e)) { border.push(e); }
             else { queue.push(n); }
diff --git a/Basic_viewer/include/CGAL/GLFW/Basic_viewer.h b/Basic_viewer/include/CGAL/GLFW/Basic_viewer.h
new file mode 100644
index 000000000000..f0948d00d246
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/Basic_viewer.h
@@ -0,0 +1,535 @@
+// Copyright (c) 2018  GeometryFactory Sarl (France).
+// All rights reserved.
+//
+// This file is part of CGAL (www.cgal.org).
+//
+// $URL$
+// $Id$
+// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
+//
+//
+// Author(s)     : Théo Benard <benard320@gmail.com>
+//                 Théo Grillon <theogrillon6f9@gmail.com>
+
+#ifndef CGAL_BASIC_VIEWER_GLFW_H
+#define CGAL_BASIC_VIEWER_GLFW_H
+
+#include <iostream>
+#include <stdlib.h>
+#include <memory>
+
+#include <glad/glad.h>
+#include <GLFW/glfw3.h>
+
+#define STB_IMAGE_WRITE_IMPLEMENTATION
+#include <stb_image_write.h>
+
+#include <CGAL/Graphics_scene.h>
+#include <CGAL/Basic_shaders.h>
+#include <CGAL/Aff_transformation_3.h>
+#include <CGAL/Plane_3.h>
+#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
+
+#include "bv_settings.h"
+#include "internal/Shader.h"
+#include "internal/Input.h"
+#include "internal/utils.h"
+#include "internal/Camera.h"
+#include "internal/Line_renderer.h"
+#include "internal/Clipping_plane.h"
+#include "internal/Animation_controller.h"
+
+namespace CGAL 
+{
+namespace GLFW 
+{
+  const int WINDOW_SAMPLES = CGAL_WINDOW_SAMPLES;
+
+  class Basic_viewer : public Input
+  {
+  public:
+    typedef CGAL::Exact_predicates_inexact_constructions_kernel Local_kernel;
+
+    enum class RenderingMode 
+    {                  
+      DRAW_ALL=-1,      // draw all
+      DRAW_INSIDE_ONLY, // draw only the part inside the clipping plane
+      DRAW_OUTSIDE_ONLY // draw only the part outside the clipping plane
+    };
+
+    enum class DisplayMode 
+    { 
+      CLIPPING_PLANE_OFF=0, 
+      CLIPPING_PLANE_SOLID_HALF_TRANSPARENT_HALF,
+      CLIPPING_PLANE_SOLID_HALF_WIRE_HALF,
+      CLIPPING_PLANE_SOLID_HALF_ONLY,  
+    };
+
+  public:
+    Basic_viewer(
+      const Graphics_scene& graphicScene,
+      const char* title = "CGAL Basic Viewer (GLFW)",
+      bool drawVertices = false,
+      bool drawEdges = true,
+      bool drawFaces = true,
+      bool drawRays = true,
+      bool drawLines = true,
+      bool useDefaultColor = false,
+      bool inverseNormal = false,
+      bool flatShading = true
+    );
+
+    ~Basic_viewer();
+
+    void show();
+    void initialize(bool screenshotOnly=false);
+    void make_screenshot(const std::string& filePath);
+
+    /***** Setter ****/
+
+    inline void window_size(const vec2f &s) { window_size_callback(m_Window, s.x(), s.y()); }
+
+    inline void size_vertices(float s) { m_SizeVertices = s; }
+    inline void size_edges(float s) { m_SizeEdges = s; }
+    inline void size_rays(float s) { m_SizeRays = s; }
+    inline void size_lines(float s) { m_SizeLines = s; }
+
+    inline void light_position(const vec4f& p) { m_LightPosition = p; }
+    inline void light_ambient(const vec4f& c) { m_AmbientColor = c; }
+    inline void light_diffuse(const vec4f& c) { m_DiffuseColor = c; }
+    inline void light_specular(const vec4f& c) { m_SpecularColor = c; }
+    inline void light_shininess(float s) { m_Shininess = s; }
+
+    inline void draw_vertices(bool b) { m_DrawVertices = b; }
+    inline void draw_edges(bool b) { m_DrawEdges = b; }
+    inline void draw_rays(bool b) { m_DrawRays = b; }
+    inline void draw_lines(bool b) { m_DrawLines = b; }
+    inline void draw_faces(bool b) { m_DrawFaces = b; }
+    inline void draw_clipping_plane(bool b) { m_DrawClippingPlane = b; }
+    inline void draw_world_axis(bool b) { m_DrawWorldAxis = b; }
+    inline void draw_xy_grid(bool b) { m_DrawXYGrid = b; }
+    inline void draw_mesh_triangles(bool b) { m_DrawMeshTriangles = b; }
+
+    inline void toggle_draw_vertices() { m_DrawVertices = !m_DrawVertices; }
+    inline void toggle_draw_edges() { m_DrawEdges = !m_DrawEdges; }
+    inline void toggle_draw_rays() { m_DrawRays = !m_DrawRays; }
+    inline void toggle_draw_lines() { m_DrawLines = !m_DrawLines; }
+    inline void toggle_draw_faces() { m_DrawFaces = !m_DrawFaces; }
+    inline void toggle_draw_clipping_plane() { m_DrawClippingPlane = !m_DrawClippingPlane; }
+    inline void toggle_draw_world_axis() { m_DrawWorldAxis = !m_DrawWorldAxis; }
+    inline void toggle_draw_xy_grid() { m_DrawXYGrid = !m_DrawXYGrid; }
+    inline void toggle_draw_mesh_triangles() { m_DrawMeshTriangles = !m_DrawMeshTriangles; }
+    inline void toggle_print_application_state() { m_PrintApplicationState = !m_PrintApplicationState; }
+    inline void toggle_use_default_color() { m_UseDefaultColor = !m_UseDefaultColor; }
+    inline void toggle_use_default_color_normals() { m_UseDefaultColor = !m_UseDefaultColor; }
+    inline void toggle_reverse_normal() { m_InverseNormal = !m_InverseNormal; }
+    inline void toggle_flat_shading() { m_FlatShading = !m_FlatShading; }
+
+    inline void print_application_state(bool b) { m_PrintApplicationState = b; }
+    inline void use_default_color(bool b) { m_UseDefaultColor = b; }
+    inline void use_default_color_normals(bool b) { m_UseDefaultColorNormal = b; }
+    inline void reverse_normal(bool b) { m_InverseNormal = b; }
+    inline void flat_shading(bool b) { m_FlatShading = b; }
+    inline void default_color_normals(const CGAL::IO::Color& c) { m_DefaultColorNormal = c; }
+    inline void normal_height_factor(float h) { m_NormalHeightFactor = h; }
+
+    inline void display_mode(DisplayMode m) { m_DisplayMode = m; }
+
+    inline void two_dimensional() { m_Camera.set_orthographic(); } 
+
+    inline void azerty_layout() { set_keyboard_layout(KeyboardLayout::AZERTY); }
+    inline void animation_duration(std::chrono::milliseconds duration) { m_AnimationController.set_duration(duration); }
+
+    inline void scene_radius(float r) { m_Camera.set_radius(r); }
+    inline void scene_center(const vec3f& c) { m_Camera.set_center(c); }
+    inline void scene_center(float x, float y, float z) { m_Camera.set_center({x, y, z}); }
+    inline void camera_position(const vec3f& p) { m_Camera.set_position(p); }
+    inline void camera_position(float x, float y, float z) { m_Camera.set_position({x, y, z}); }
+    inline void camera_orientation(const vec3f& f, float u) { m_Camera.set_orientation(f, u); }
+    inline void zoom(float z) { m_Camera.set_size(z); }
+    
+    inline void align_camera_to_clipping_plane() { m_Camera.align_to_plane(m_ClippingPlane.get_normal()); }
+    inline void clipping_plane_orientation(const vec3f& n) { m_ClippingPlane.set_orientation(n); } 
+    inline void clipping_plane_translate_along_normal(float t) { m_ClippingPlane.translation(t*.1); } 
+    inline void clipping_plane_translate_along_camera_forward(float t) { m_ClippingPlane.translation(m_Camera.get_forward(), t*.1); } 
+
+    inline void reverse_all_normals() { m_InverseNormal = !m_InverseNormal; m_Scene.reverse_all_normals(); }
+
+    /******* Getter ********/  
+
+    inline vec3f position() const { return m_Camera.get_position(); }
+    inline vec3f forward() const { return m_Camera.get_forward(); }
+    inline vec3f right() const { return m_Camera.get_right(); }
+    inline vec3f up() const { return m_Camera.get_up(); }
+
+    inline float size_vertices() const { return m_SizeVertices; }
+    inline float size_edges() const { return m_SizeEdges; }
+    inline float size_rays() const { return m_SizeRays; }
+    inline float size_lines() const { return m_SizeLines; }
+
+    inline vec4f light_position() const { return m_LightPosition; }
+    inline vec4f light_ambient() const { return m_AmbientColor; }
+    inline vec4f light_diffuse() const { return m_DiffuseColor; }
+    inline vec4f light_specular() const { return m_SpecularColor; }
+    inline float light_shininess() const { return m_Shininess; }
+
+    inline bool draw_vertices() const { return m_DrawVertices; }
+    inline bool draw_edges() const { return m_DrawEdges; }
+    inline bool draw_rays() const { return m_DrawRays; }
+    inline bool draw_lines() const { return m_DrawLines; }
+    inline bool draw_faces() const { return m_DrawFaces; }
+    inline bool draw_world_axis() const { return m_DrawWorldAxis; }
+    inline bool draw_xy_grid() const { return m_DrawXYGrid; }
+    inline bool draw_mesh_triangles() const { return m_DrawMeshTriangles; }
+    inline bool print_application_state() const { return m_PrintApplicationState; }
+    inline bool use_default_color() const { return m_UseDefaultColor; }
+    inline bool use_default_color_normal() const { return m_UseDefaultColorNormal; }
+    inline bool reverse_normal() const { return m_InverseNormal; }
+    inline bool flat_shading() const { return m_FlatShading; }
+
+    inline bool clipping_plane_enable() const { return m_DisplayMode != DisplayMode::CLIPPING_PLANE_OFF; }
+    inline bool is_orthograpic() const { return m_Camera.is_orthographic(); }
+    inline bool is_two_dimensional() const { return !is_orthograpic() && m_Scene.is_two_dimensional(); }
+
+    CGAL::Plane_3<Local_kernel> clipping_plane() const;
+
+    inline const Graphics_scene& graphics_scene() const { return m_Scene; }
+
+  private:
+    void exit_app();
+
+    static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods);
+    static void cursor_callback(GLFWwindow* window, double xpos, double ypo);
+    static void mouse_btn_callback(GLFWwindow* window, int button, int action, int mods);
+    static void window_size_callback(GLFWwindow* window, int width, int height);
+    static void scroll_callback(GLFWwindow* window, double xoffset, double yoffset);
+
+    static GLFWwindow* create_window(int width, int height, const char* title, bool hidden = false);
+    static void error_callback(int error, const char* description);
+
+    void compile_shaders();
+    void load_buffer(int i, int location, int gsEnum, int dataCount);
+    void load_buffer(int i, int location, const std::vector<float>& vector, int dataCount);
+    void initialize_buffers();
+    void initialize_camera();
+    void initialize_and_load_world_axis();
+    void load_scene();
+
+    void print_application_state(float& elapsedTime, const float deltaTime);
+
+    void compute_model_view_projection_matrix(const float deltaTime);
+
+    void update_face_uniforms();
+    void update_sphere_uniforms();
+    void update_cylinder_uniforms();
+    void update_pl_uniforms(const vec3f& defaultColor={0,0,0});
+    void update_line_uniforms(float size, const vec3f& defaultColor={0,0,0});
+    void update_clipping_uniforms();
+    void update_world_axis_uniforms();
+    void update_XY_axis_uniforms();
+    void update_XY_grid_uniforms();
+    void update_normals_uniforms();
+    void update_triangles_uniforms();
+
+    void generate_grid(Line_renderer& renderer, float size, int nbSubdivisions=10) const;
+    void generate_grid(Line_renderer& renderer, const vec3f& color, float size, int nbSubdivisions=10) const;
+
+    void render_scene(const float deltaTime);
+
+    void draw(const float deltaTime=0);
+    
+    void draw_rays();
+    void draw_edges();
+    void draw_lines();
+    void draw_vertices();
+
+    void draw_faces();
+    void draw_faces_bis(RenderingMode mode);
+
+    void draw_world_axis();
+    void draw_xy_grid();
+    void draw_normals();
+    void draw_triangles();
+
+    void initialize_and_load_clipping_plane();
+    void render_clipping_plane();
+
+    void initialize_keys_actions();
+
+    void start_action(int action, const float deltaTime) override;
+    void action_event(int action, const float deltaTime) override;
+    void end_action(int action, const float deltaTime) override;
+
+    void double_click_event(int btn) override;
+    void scroll_event(const float deltaTime) override;
+
+    void rotate_camera();
+    void rotate_clipping_plane();
+    void translate_camera(const float deltaTime);
+    void translate_clipping_plane(const float deltaTime, bool useCameraForward=false);
+
+    void save_key_frame(); 
+    void run_or_stop_animation();
+
+    void increase_light_all(const float deltaTime);
+    void increase_red_component(const float deltaTime);
+    void increase_green_component(const float deltaTime);
+    void increase_blue_component(const float deltaTime);
+
+    void increase_size_edge(const float deltaTime);
+    void decrease_size_edge(const float deltaTime);
+    void increase_size_vertex(const float deltaTime);
+    void decrease_size_vertex(const float deltaTime);
+
+    void switch_display_mode();
+
+    void fullscreen();
+    void capture_screenshot(const std::string& filePath);
+
+    vec4f color_to_normalized_vec4(const CGAL::IO::Color& c) const;
+    vec3f color_to_normalized_vec3(const CGAL::IO::Color& c) const;
+
+    void reset_camera_and_clipping_plane();
+    void reset_clipping_plane();
+
+    void change_pivot_point(); 
+    void check_geometry_feature_availability(); 
+
+    bool need_update() const; 
+    
+    std::vector<float> aggregating_data(int monoEnum, int coloredEnum) const;
+    std::vector<float> aggregating_color_data(int monoEnum, int coloredEnum, const CGAL::IO::Color& monoColor) const;
+ 
+  private:
+    GLFWwindow* m_Window;
+
+    const Graphics_scene& m_Scene;
+    
+    const char* m_Title;
+    bool m_DrawVertices { false };
+    bool m_DrawEdges { true };
+    bool m_DrawFaces { true };
+    bool m_DrawRays { true };
+    bool m_DrawLines { true };
+    bool m_DrawCylinderEdge { false };
+    bool m_DrawSphereVertex { false };
+    bool m_DrawMeshTriangles { false };
+
+    bool m_DisplayFaceNormal { false };
+    bool m_UseDefaultColorNormal { false };
+    bool m_UseDefaultColor { false };
+
+    bool m_InverseNormal { false };
+    bool m_FlatShading { true };
+
+    bool m_PrintApplicationState { true };
+    bool m_AreBuffersInitialized { false };
+
+    bool m_DrawWorldAxis { true };
+    bool m_DrawXYGrid { false };
+    bool m_DrawNormals { false };
+
+    bool m_IsOpengl4_3 { false };
+    bool m_IsFullscreen { false };
+
+    bool m_GeometryFeatureEnabled { true };    
+    
+    Line_renderer m_WorldAxisRenderer; 
+    Line_renderer m_XYGridRenderer; 
+    Line_renderer m_XYAxisRenderer; 
+
+    float m_SizeVertices { CGAL_SIZE_VERTICES };
+    float m_SizeEdges    { CGAL_SIZE_EDGES  };
+    float m_SizeRays     { CGAL_SIZE_RAYS   };
+    float m_SizeLines    { CGAL_SIZE_LINES  };
+    float m_SizeNormals  { CGAL_SIZE_NORMALS};
+
+    float m_NormalHeightFactor { CGAL_NORMAL_HEIGHT_FACTOR };
+
+    CGAL::IO::Color m_DefaultColorNormal  = CGAL_NORMALS_MONO_COLOR;
+
+    vec4f m_LightPosition { CGAL_LIGHT_POSITION };
+    vec4f m_AmbientColor  { CGAL_AMBIENT_COLOR  };
+    vec4f m_DiffuseColor  { CGAL_DIFFUSE_COLOR  };
+    vec4f m_SpecularColor { CGAL_SPECULAR_COLOR };
+
+    float m_Shininess { CGAL_SHININESS };
+
+    vec3f m_DefaultColorRay;
+    vec3f m_DefaultColorFace;
+    vec3f m_DefaultColorLine;
+    vec3f m_DefaultColorPoint;
+    vec3f m_DefaultColorSegment;
+
+    vec4f m_ClipPlane { 0, 0, 1, 0 };
+    vec4f m_PointPlane { 0, 0, 0, 1 };
+
+    mat4f m_ModelMatrix          { mat4f::Identity() };
+    mat4f m_ViewMatrix           { mat4f::Identity() };
+    mat4f m_ProjectionMatrix     { mat4f::Identity() };
+    mat4f m_ViewProjectionMatrix { mat4f::Identity() };
+
+    std::shared_ptr<Shader> m_ShaderFace; 
+    std::shared_ptr<Shader> m_ShaderSphere;
+    std::shared_ptr<Shader> m_ShaderPoint;
+    std::shared_ptr<Shader> m_ShaderLine;
+    std::shared_ptr<Shader> m_ShaderPl;
+    std::shared_ptr<Shader> m_ShaderCylinder;
+    std::shared_ptr<Shader> m_ShaderPlane;
+    std::shared_ptr<Shader> m_ShaderGrid;
+    std::shared_ptr<Shader> m_ShaderNormal;
+    std::shared_ptr<Shader> m_ShaderArrow;
+    std::shared_ptr<Shader> m_ShaderTriangles;
+
+    vec2i m_WindowSize { CGAL_WINDOW_WIDTH_INIT, CGAL_WINDOW_HEIGHT_INIT };
+    vec2i m_OldWindowSize { CGAL_WINDOW_WIDTH_INIT, CGAL_WINDOW_HEIGHT_INIT };
+
+    vec2i m_OldWindowPosition { 0, 0 }; 
+
+    float m_AspectRatio { 1.f };
+
+    float m_DeltaTime { 0 };
+
+    std::pair<vec3f, vec3f> m_BoundingBox; 
+
+    Camera m_Camera;
+
+    /***************CLIPPING PLANE****************/
+
+    Clipping_plane m_ClippingPlane;
+
+    DisplayMode m_DisplayMode { DisplayMode::CLIPPING_PLANE_OFF };
+    
+    bool m_DrawClippingPlane { true };  // will be toggled when alt+c is pressed, which is used for indicating whether or not to render the clipping plane ;
+
+    /*********************/
+
+    Animation_controller m_AnimationController;
+
+    enum VAOEnum 
+    {
+      VAO_POINTS = 0,
+      VAO_SEGMENTS,
+      VAO_RAYS,
+      VAO_LINES,
+      VAO_FACES,
+      NB_VAO_BUFFERS
+    };
+
+    unsigned int m_VAO[NB_VAO_BUFFERS];
+
+    static const unsigned int NB_GL_BUFFERS = (Graphics_scene::END_POS - Graphics_scene::BEGIN_POS) +
+                                              (Graphics_scene::END_COLOR - Graphics_scene::BEGIN_COLOR) + 2; // +2 for normals (mono and color)
+
+    unsigned int m_VBO[NB_GL_BUFFERS]; // +1 for the vbo buffer of clipping plane
+
+    enum ActionEnum
+    {
+      /*APPLICATION*/
+      EXIT,
+      PRINT_APPLICATION_STATE,
+
+      /*WINDOW*/
+      FULLSCREEN,
+      SCREENSHOT,
+
+      /*SCENE*/
+      NORMALS_DISPLAY,
+      TRIANGLES_DISPLAY,
+      VERTICES_DISPLAY,
+      FACES_DISPLAY,
+      EDGES_DISPLAY,
+      INVERSE_NORMAL,
+      SHADING_MODE,
+
+      FACE_NORMALS_DISPLAY,
+      CYLINDER_EDGE_DISPLAY,
+      SPHERE_VERTEX_DISPLAY,
+
+      NORMALS_MONO_COLOR,
+      MONO_COLOR,
+      INC_LIGHT_ALL,
+      INC_LIGHT_R,
+      INC_LIGHT_G,
+      INC_LIGHT_B,
+      DEC_LIGHT_ALL,
+      DEC_LIGHT_R,
+      DEC_LIGHT_G,
+      DEC_LIGHT_B,
+      INC_POINTS_SIZE,
+      DEC_POINTS_SIZE,
+      INC_EDGES_SIZE,
+      DEC_EDGES_SIZE,
+
+      WORLD_AXIS_DISPLAY, 
+      XY_GRID_DISPLAY,
+
+      SHOW_ENTIRE_SCENE,
+
+      /*CAMERA*/
+      ROTATE_CAMERA,
+      TRANSLATE_CAMERA,
+      
+      UP,
+      LEFT,
+      RIGHT,
+      DOWN,
+      FORWARD,
+      BACKWARDS,
+
+      SWITCH_CAMERA_MODE,
+      SWITCH_CAMERA_TYPE,
+      SWITCH_CAMERA_CONSTRAINT_AXIS,
+
+      RESET_CAMERA_AND_CP,
+
+      INC_CAMERA_TRANSLATION_SPEED,
+      DEC_CAMERA_TRANSLATION_SPEED,
+      INC_CAMERA_ROTATION_SPEED,
+      DEC_CAMERA_ROTATION_SPEED,
+
+      INC_CAMERA_ROTATION_SMOOTHNESS, 
+      DEC_CAMERA_ROTATION_SMOOTHNESS, 
+      INC_CAMERA_TRANSLATION_SMOOTHNESS, 
+      DEC_CAMERA_TRANSLATION_SMOOTHNESS, 
+
+      CHANGE_PIVOT_POINT, 
+
+      /*CLIPPING PLANE*/
+      ROTATE_CLIPPING_PLANE,
+      TRANSLATE_CLIPPING_PLANE,
+      TRANSLATE_CP_ALONG_CAMERA_DIRECTION,
+      TRANSLATE_CP_ALONG_NORMAL_DIRECTION,
+
+      SWITCH_CLIPPING_PLANE_MODE,
+      SWITCH_CLIPPING_PLANE_DISPLAY,
+      SWITCH_CP_CONSTRAINT_AXIS,
+
+      INC_CP_TRANSLATION_SPEED,
+      INC_CP_ROTATION_SPEED,
+      DEC_CP_TRANSLATION_SPEED,
+      DEC_CP_ROTATION_SPEED,
+
+      RESET_CLIPPING_PLANE,
+
+      /*ANIMATION*/
+      SAVE_KEY_FRAME,
+      RUN_OR_STOP_ANIMATION,
+      CLEAR_ANIMATION, 
+    };
+  };
+} // end namespace GLFW
+  using GLFW::Basic_viewer;
+
+  inline 
+  void draw_graphics_scene(const Graphics_scene& graphics_scene, const char* title="CGAL Basic Viewer (GLFW)")
+  {
+    Basic_viewer basic_viewer(graphics_scene, title);
+    basic_viewer.show();
+  } 
+
+} // end namespace CGAL 
+
+#include "Basic_viewer_impl.h"
+  
+#endif // CGAL_BASIC_VIEWER_GLFW_H 
\ No newline at end of file
diff --git a/Basic_viewer/include/CGAL/GLFW/Basic_viewer_impl.h b/Basic_viewer/include/CGAL/GLFW/Basic_viewer_impl.h
new file mode 100644
index 000000000000..5a15e5fc9473
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/Basic_viewer_impl.h
@@ -0,0 +1,1835 @@
+#ifndef CGAL_BASIC_VIEWER_GLFW_IMPL_H
+#define CGAL_BASIC_VIEWER_GLFW_IMPL_H
+
+namespace CGAL 
+{
+namespace GLFW 
+{
+
+  inline 
+  void Basic_viewer::error_callback(int error, const char *description)
+  {
+    std::cerr << "GLFW returned an error:\n\t" << description << "(" << error << ")\n";
+  }
+
+  GLFWwindow* Basic_viewer::create_window(int width, int height, const char* title, bool hidden)
+  {
+    // Initialise GLFW
+    if (!glfwInit())
+    { 
+      std::cerr << "Could not start GLFW\n";
+      exit(EXIT_FAILURE);
+    }
+
+    // OpenGL 2.1 with compatibilty
+    // if (hidden)
+    // {
+    //   glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
+    // }
+
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+    // Enable the GLFW runtime error callback function defined previously.
+    glfwSetErrorCallback(error_callback);
+
+    // Set additional window options
+    if (!hidden)
+    {
+      glfwWindowHint(GLFW_RESIZABLE, GL_TRUE);
+    }
+
+    glfwWindowHint(GLFW_SAMPLES, WINDOW_SAMPLES); // MSAA
+
+    // Create window using GLFW
+    GLFWwindow* window = glfwCreateWindow(width, height, title, nullptr, nullptr);
+
+    // Ensure the window is set up correctly
+    if (!window)
+    {
+      std::cerr << "Could not open GLFW window\n";
+      glfwTerminate();
+      exit(EXIT_FAILURE);
+    }
+
+    // Let the window be the current OpenGL context and initialise glad
+    glfwMakeContextCurrent(window);
+
+    // Initialized GLAD
+    if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
+    {
+      std::cerr << "Failed to initialized GLAD!";
+      glfwDestroyWindow(window);
+      glfwTerminate();
+      exit(EXIT_FAILURE);
+    }
+
+    // Print various OpenGL information to stdout
+    std::cout << glGetString(GL_VENDOR) << ": " << glGetString(GL_RENDERER) << '\n';
+    std::cout << "GLFW\t " << glfwGetVersionString() << '\n';
+    std::cout << "OpenGL\t " << glGetString(GL_VERSION) << '\n';
+    std::cout << "GLSL\t " << glGetString(GL_SHADING_LANGUAGE_VERSION) << "\n\n";
+
+    return window;
+  }
+
+  Basic_viewer::Basic_viewer(
+    const Graphics_scene& graphicScene,
+    const char* title,
+    bool drawVertices,
+    bool drawEdges,
+    bool drawFaces,
+    bool drawRays,
+    bool drawLines, 
+    bool useDefaultColor,
+    bool inverseNormal,
+    bool flatShading
+  ) : 
+    m_Scene(graphicScene),
+    m_Title(title),
+    m_DrawVertices(drawVertices),
+    m_DrawEdges(drawEdges),
+    m_DrawFaces(drawFaces),
+    m_DrawRays(drawRays),
+    m_DrawLines(drawLines),
+    m_UseDefaultColor(useDefaultColor),
+    m_InverseNormal(inverseNormal),
+    m_FlatShading(flatShading)
+  {
+    initialize();
+  } 
+
+  Basic_viewer::~Basic_viewer()
+  {
+    glDeleteBuffers(NB_GL_BUFFERS, m_VBO);
+    glDeleteVertexArrays(NB_VAO_BUFFERS, m_VAO);
+    glfwDestroyWindow(m_Window);
+    glfwTerminate();
+  }
+
+  void Basic_viewer::initialize(bool screenshotOnly)
+  {
+    m_Window = create_window(m_WindowSize.x(), m_WindowSize.y(), m_Title, screenshotOnly);
+
+    m_AspectRatio = static_cast<float>(m_WindowSize.x())/m_WindowSize.y();
+
+    if (!screenshotOnly)
+    {
+      // Set event callbacks 
+      glfwSetWindowUserPointer(m_Window, this);
+      glfwSetKeyCallback(m_Window, key_callback);
+      glfwSetCursorPosCallback(m_Window, cursor_callback);
+      glfwSetMouseButtonCallback(m_Window, mouse_btn_callback);
+      glfwSetScrollCallback(m_Window, scroll_callback);
+      glfwSetFramebufferSizeCallback(m_Window, window_size_callback);
+    }
+
+    int openglMajorVersion, openglMinorVersion;
+    glGetIntegerv(GL_MAJOR_VERSION, &openglMajorVersion);
+    glGetIntegerv(GL_MINOR_VERSION, &openglMinorVersion);
+
+    if (openglMajorVersion > 4 || openglMajorVersion == 4 && openglMinorVersion >= 3)
+    {
+      m_IsOpengl4_3 = true;
+    }
+
+    compile_shaders();
+    initialize_camera();
+    initialize_buffers();
+    initialize_and_load_world_axis();
+    initialize_and_load_clipping_plane();
+
+    if (!screenshotOnly)
+    {
+      initialize_keys_actions();
+    }
+
+    check_geometry_feature_availability();
+
+    m_DefaultColorRay = color_to_normalized_vec3(m_Scene.get_default_color_ray());
+    m_DefaultColorFace = color_to_normalized_vec3(m_Scene.get_default_color_face());
+    m_DefaultColorLine = color_to_normalized_vec3(m_Scene.get_default_color_line());
+    m_DefaultColorPoint = color_to_normalized_vec3(m_Scene.get_default_color_point());
+    m_DefaultColorSegment = color_to_normalized_vec3(m_Scene.get_default_color_segment());
+  }
+
+  void Basic_viewer::show()
+  {
+    float elapsedTime = 0.0f;
+    float lastFrame = 0.0;
+    while (!glfwWindowShouldClose(m_Window))
+    {
+      float currentFrame = static_cast<float>(glfwGetTime());
+      m_DeltaTime = currentFrame - lastFrame;
+      lastFrame = currentFrame;
+      if (m_DeltaTime < 1e-3) m_DeltaTime = 1e-3;
+
+      handle_events(m_DeltaTime);
+      if (need_update()) 
+      {
+        render_scene(m_DeltaTime);
+      }
+      print_application_state(elapsedTime, m_DeltaTime);
+    }
+  }
+
+  void Basic_viewer::make_screenshot(const std::string& filePath)
+  {
+    m_Camera.disable_smoothness();
+    draw();
+    glfwSwapBuffers(m_Window);
+    capture_screenshot(filePath);
+  }
+
+  void Basic_viewer::generate_grid(Line_renderer& renderer, float size, int nbSubdivisions) const 
+  {
+    for (unsigned int i = 0; i <= nbSubdivisions; ++i)
+    {
+      float pos = float(size * (2.0 * i / nbSubdivisions - 1.0));
+      renderer.add_line(vec3f(pos, -size, 0.f), vec3f(pos, size, 0.f));
+      renderer.add_line(vec3f(-size, pos, 0.f), vec3f(size, pos, 0.f));
+    }
+  }
+
+  void Basic_viewer::generate_grid(Line_renderer& renderer, const vec3f& color, float size, int nbSubdivisions) const 
+  {
+    for (unsigned int i = 0; i <= nbSubdivisions; ++i)
+    {
+      float pos = float(size * (2.0 * i / nbSubdivisions - 1.0));
+      renderer.add_line(vec3f(pos, -size, 0.f), vec3f(pos, size, 0.f), color);
+      renderer.add_line(vec3f(-size, pos, 0.f), vec3f(size, pos, 0.f), color);
+    }
+  }
+
+  void Basic_viewer::compile_shaders()
+  {
+    const char* PL_VERTEX = m_IsOpengl4_3 ? VERTEX_SOURCE_P_L : VERTEX_SOURCE_P_L_COMP;
+    const char* PL_FRAGMENT = m_IsOpengl4_3 ? FRAGMENT_SOURCE_P_L : FRAGMENT_SOURCE_P_L_COMP;
+    m_ShaderPl = Shader::create(PL_VERTEX, PL_FRAGMENT);
+
+    const char* FACE_VERTEX = m_IsOpengl4_3 ? VERTEX_SOURCE_COLOR : VERTEX_SOURCE_COLOR_COMP;
+    const char* FACE_FRAGMENT = m_IsOpengl4_3 ? FRAGMENT_SOURCE_COLOR : FRAGMENT_SOURCE_COLOR_COMP;
+    m_ShaderFace = Shader::create(FACE_VERTEX, FACE_FRAGMENT);
+    
+    const char* PLANE_VERTEX = VERTEX_SOURCE_CLIPPING_PLANE;
+    const char* PLANE_FRAGMENT = FRAGMENT_SOURCE_CLIPPING_PLANE;
+    m_ShaderPlane = Shader::create(PLANE_VERTEX, PLANE_FRAGMENT);
+
+    const char* SHAPE_VERTEX = VERTEX_SOURCE_SHAPE;
+    const char* POINT_GEOMETRY = GEOMETRY_SOURCE_SPHERE;
+    m_ShaderSphere = Shader::create(SHAPE_VERTEX, PL_FRAGMENT, POINT_GEOMETRY);
+
+    const char* EDGE_VERTEX = VERTEX_SOURCE_SHAPE;
+    const char* EDGE_GEOMETRY = GEOMETRY_SOURCE_CYLINDER;
+    const char* EDGE_FRAGMENT = m_IsOpengl4_3 ? FRAGMENT_SOURCE_P_L : FRAGMENT_SOURCE_P_L_COMP;
+    m_ShaderCylinder = Shader::create(EDGE_VERTEX, PL_FRAGMENT, EDGE_GEOMETRY);
+
+    const char* LINE_VERTEX = VERTEX_SOURCE_LINE_WIDTH;
+    const char* LINE_GEOMETRY = GEOMETRY_SOURCE_LINE_WIDTH;
+    const char* LINE_FRAGMENT = FRAGMENT_SOURCE_P_L;
+    m_ShaderLine = Shader::create(LINE_VERTEX, LINE_FRAGMENT, LINE_GEOMETRY);
+
+    const char* GRID_VERTEX = VERTEX_SOURCE_LINE;
+    const char* GRID_GEOMETRY = GEOMETRY_SOURCE_LINE;
+    const char* GRID_FRAGMENT = FRAGMENT_SOURCE_LINE;
+    m_ShaderGrid = Shader::create(GRID_VERTEX, GRID_FRAGMENT, GRID_GEOMETRY);
+
+    const char* ARROW_VERTEX = VERTEX_SOURCE_LINE;
+    const char* ARROW_GEOMETRY = GEOMETRY_SOURCE_ARROW;
+    const char* ARROW_FRAGMENT = FRAGMENT_SOURCE_LINE;
+    m_ShaderArrow = Shader::create(ARROW_VERTEX, ARROW_FRAGMENT, ARROW_GEOMETRY);
+
+    const char* NORMAL_VERTEX = VERTEX_SOURCE_NORMAL;
+    const char* NORMAL_GEOMETRY = GEOMETRY_SOURCE_NORMAL;
+    const char* NORMAL_FRAGMENT = m_IsOpengl4_3 ? FRAGMENT_SOURCE_P_L : FRAGMENT_SOURCE_P_L_COMP;
+    m_ShaderNormal = Shader::create(NORMAL_VERTEX, NORMAL_FRAGMENT, NORMAL_GEOMETRY);
+
+    const char* TRIANGLE_VERTEX = VERTEX_SOURCE_TRIANGLE;
+    const char* TRIANGLE_GEOMETRY = GEOMETRY_SOURCE_TRIANGLE;
+    const char* TRIANGLE_FRAGMENT = m_IsOpengl4_3 ? FRAGMENT_SOURCE_P_L : FRAGMENT_SOURCE_P_L_COMP;
+    m_ShaderTriangles = Shader::create(TRIANGLE_VERTEX, TRIANGLE_FRAGMENT, TRIANGLE_GEOMETRY);
+  }
+
+  void Basic_viewer::initialize_camera()
+  {
+    vec3f pmin(
+      m_Scene.bounding_box().xmin(),
+      m_Scene.bounding_box().ymin(),
+      m_Scene.bounding_box().zmin());
+
+    vec3f pmax(
+      m_Scene.bounding_box().xmax(),
+      m_Scene.bounding_box().ymax(),
+      m_Scene.bounding_box().zmax());
+
+    m_BoundingBox = { pmin, pmax };
+
+    m_Camera.lookat(pmin, pmax);  
+
+    if (is_two_dimensional())
+    {
+      m_Camera.set_constraint_axis(Camera::ConstraintAxis::FORWARD_AXIS);
+      m_Camera.set_orthographic();
+    }
+  }
+
+  void Basic_viewer::initialize_and_load_world_axis()
+  {
+    // World axis initialization
+    m_WorldAxisRenderer.initialize_buffers({ // Use VERTEX_SOURCE_LINE"
+      {ShaderDataType::FLOAT3}, // a_Pos"
+      {ShaderDataType::FLOAT3}, // a_Color
+    });
+    m_WorldAxisRenderer.set_width(3.f);
+    m_WorldAxisRenderer.add_line(vec3f::Zero(), .1f*vec3f::UnitX(), vec3f(1, 0, 0)); // x-axis
+    m_WorldAxisRenderer.add_line(vec3f::Zero(), .1f*vec3f::UnitY(), vec3f(0, 1, 0)); // y-axis
+    m_WorldAxisRenderer.add_line(vec3f::Zero(), .1f*vec3f::UnitZ(), vec3f(0, 0, 1)); // z-axis
+    m_WorldAxisRenderer.load_buffers();
+
+    float cameraSize = m_Camera.get_size() * 0.5;
+    // XY grid axis initialization
+    m_XYAxisRenderer.initialize_buffers({ // Use VERTEX_SOURCE_LINE
+      {ShaderDataType::FLOAT3}, // a_Pos
+      {ShaderDataType::FLOAT3}, // a_Color
+    });
+    m_XYAxisRenderer.set_width(5.f);
+    m_XYAxisRenderer.add_line(vec3f::Zero(), cameraSize*vec3f::UnitX(), vec3f(1, 0, 0)); // x-axis
+    m_XYAxisRenderer.add_line(vec3f::Zero(), cameraSize*vec3f::UnitY(), vec3f(0, 1, 0)); // y-axis
+    m_XYAxisRenderer.load_buffers();
+
+    // XY grid initialization 
+    m_XYGridRenderer.initialize_buffers({ // Use VERTEX_SOURCE_LINE
+      {ShaderDataType::FLOAT3}, // a_Pos
+      {ShaderDataType::FLOAT3}, // a_Color
+    });
+    m_XYGridRenderer.set_width(2.f);
+    m_XYGridRenderer.add_line(vec3f::Zero(), -2.f*cameraSize*vec3f::UnitX(), vec3f(.8f, .8f, .8f)); // -x-axis
+    m_XYGridRenderer.add_line(vec3f::Zero(), -2.f*cameraSize*vec3f::UnitY(), vec3f(.8f, .8f, .8f)); // -y-axis
+    m_XYGridRenderer.add_line(vec3f::Zero(), -2.f*cameraSize*vec3f::UnitZ(), vec3f(.8f, .8f, .8f)); // -z-axis
+
+    vec3f color(.8f, .8f, .8f);
+
+    generate_grid(m_XYGridRenderer, color, cameraSize);
+    
+    m_XYGridRenderer.load_buffers();
+  }
+
+  void Basic_viewer::load_buffer(int i, int location, const std::vector<float>& vector, int dataCount)
+  {
+    glBindBuffer(GL_ARRAY_BUFFER, m_VBO[i]);
+
+    glBufferData(GL_ARRAY_BUFFER, vector.size() * sizeof(float), vector.data(), GL_STATIC_DRAW);
+
+    glVertexAttribPointer(location, dataCount, GL_FLOAT, GL_FALSE, dataCount * sizeof(float), nullptr);
+
+    glEnableVertexAttribArray(location);
+  }
+
+  void Basic_viewer::load_buffer(int i, int location, int gsEnum, int dataCount)
+  {
+    const auto& vector = m_Scene.get_array_of_index(gsEnum);
+    load_buffer(i, location, vector, dataCount);
+  }
+
+  void Basic_viewer::initialize_buffers()
+  {
+    glGenBuffers(NB_GL_BUFFERS, m_VBO);
+    glGenVertexArrays(NB_VAO_BUFFERS, m_VAO);
+  }
+
+  void Basic_viewer::load_scene()
+  {
+    unsigned int bufn = 0;
+
+    std::vector<float> positions, normals, colors; 
+
+    // 1) POINT SHADER
+
+    glBindVertexArray(m_VAO[VAO_POINTS]);
+    positions = m_Scene.get_array_of_index(Graphics_scene::POS_POINTS); 
+    colors = m_Scene.get_array_of_index(Graphics_scene::COLOR_POINTS);
+
+    load_buffer(bufn++, 0, positions, 3);
+    load_buffer(bufn++, 1, colors, 3);
+
+    // 2) SEGMENT SHADER
+
+    glBindVertexArray(m_VAO[VAO_SEGMENTS]);
+    positions = m_Scene.get_array_of_index(Graphics_scene::POS_SEGMENTS); 
+    colors = m_Scene.get_array_of_index(Graphics_scene::COLOR_SEGMENTS);
+
+    load_buffer(bufn++, 0, positions, 3);
+    load_buffer(bufn++, 1, colors, 3);
+
+    // 3) RAYS SHADER
+
+    glBindVertexArray(m_VAO[VAO_RAYS]);
+    positions = m_Scene.get_array_of_index(Graphics_scene::POS_RAYS); 
+    colors = m_Scene.get_array_of_index(Graphics_scene::COLOR_RAYS);
+
+    load_buffer(bufn++, 0, positions, 3);
+    load_buffer(bufn++, 1, colors, 3);
+
+    // 4) LINES SHADER
+
+    glBindVertexArray(m_VAO[VAO_LINES]);
+    positions = m_Scene.get_array_of_index(Graphics_scene::POS_LINES); 
+    colors = m_Scene.get_array_of_index(Graphics_scene::COLOR_LINES);
+
+    load_buffer(bufn++, 0, positions, 3);
+    load_buffer(bufn++, 1, colors, 3);
+
+    // 5) FACE SHADER
+
+    glBindVertexArray(m_VAO[VAO_FACES]);
+    positions = m_Scene.get_array_of_index(Graphics_scene::POS_FACES); 
+    normals = m_Scene.get_array_of_index(
+      m_FlatShading ? Graphics_scene::FLAT_NORMAL_FACES : Graphics_scene::SMOOTH_NORMAL_FACES
+    );
+    colors = m_Scene.get_array_of_index(Graphics_scene::COLOR_FACES);
+
+    load_buffer(bufn++, 0, positions, 3);
+    load_buffer(bufn++, 1, normals, 3);
+    load_buffer(bufn++, 2, colors, 3);
+
+    m_AreBuffersInitialized = true;
+  }
+
+  CGAL::Plane_3<Basic_viewer::Local_kernel> Basic_viewer::clipping_plane() const
+  {
+    mat4f CPM = m_ClippingPlane.get_matrix();
+    CGAL::Aff_transformation_3<Basic_viewer::Local_kernel> aff(
+      CPM(0, 0), CPM(0, 1), CPM(0, 2), CPM(0, 3),
+      CPM(1, 0), CPM(1, 1), CPM(1, 2), CPM(1, 3),
+      CPM(2, 0), CPM(2, 1), CPM(2, 2), CPM(2, 3)
+    );
+
+    CGAL::Plane_3<Local_kernel> p3(0, 0, 1, 0);
+    return p3.transform(aff);
+  }
+
+  void Basic_viewer::compute_model_view_projection_matrix(const float deltaTime)
+  {
+    m_Camera.update(deltaTime);
+    m_ClippingPlane.update(deltaTime);
+
+    if (m_AnimationController.is_running())
+    {
+      AnimationKeyFrame animationFrame = m_AnimationController.run();
+      m_Camera.set_orientation(animationFrame.orientation);
+      m_Camera.set_position(animationFrame.position);
+    }
+
+    m_ViewMatrix = m_Camera.view();
+    m_ProjectionMatrix = m_Camera.projection(m_WindowSize.x(), m_WindowSize.y());
+
+    m_ViewProjectionMatrix = m_ProjectionMatrix * m_ViewMatrix;
+  }
+
+  void Basic_viewer::update_face_uniforms()
+  {
+    m_ShaderFace->use();
+
+    m_ShaderFace->set_mat4f("u_Mvp", m_ViewProjectionMatrix.data());
+    m_ShaderFace->set_mat4f("u_Mv",  m_ViewMatrix.data());
+    if (m_UseDefaultColor)
+    {
+      m_ShaderFace->set_int("u_UseDefaultColor", 1);
+      m_ShaderFace->set_vec3f("u_DefaultColor", m_DefaultColorFace.data());
+    }
+    else 
+    {
+      m_ShaderFace->set_int("u_UseDefaultColor", 0);
+    }
+
+    m_ShaderFace->set_vec4f("u_LightPos",  m_LightPosition.data());
+    m_ShaderFace->set_vec4f("u_LightDiff", m_DiffuseColor.data());
+    m_ShaderFace->set_vec4f("u_LightSpec", m_SpecularColor.data());
+    m_ShaderFace->set_vec4f("u_LightAmb",  m_AmbientColor.data());
+    m_ShaderFace->set_float("u_SpecPower", m_Shininess);
+
+    m_ShaderFace->set_vec4f("u_ClipPlane",  m_ClipPlane.data());
+    m_ShaderFace->set_vec4f("u_PointPlane", m_PointPlane.data());
+    m_ShaderFace->set_float("u_RenderingTransparency", m_ClippingPlane.get_transparency());
+  }
+
+  void Basic_viewer::update_sphere_uniforms()
+  {
+    m_ShaderSphere->use();
+
+    bool half = m_DisplayMode == DisplayMode::CLIPPING_PLANE_SOLID_HALF_ONLY;
+    auto mode = half ? RenderingMode::DRAW_INSIDE_ONLY : RenderingMode::DRAW_ALL;
+
+    if (m_UseDefaultColor)
+    {
+      m_ShaderSphere->set_int("u_UseDefaultColor", 1);
+      m_ShaderSphere->set_vec3f("u_DefaultColor", m_DefaultColorPoint.data());
+    }
+    else 
+    {
+      m_ShaderSphere->set_int("u_UseDefaultColor", 0);
+    }
+
+    m_ShaderSphere->set_float("u_RenderingMode", static_cast<float>(mode));
+
+    m_ShaderSphere->set_mat4f("u_Mvp", m_ViewProjectionMatrix.data());
+    m_ShaderSphere->set_vec4f("u_ClipPlane",  m_ClipPlane.data());
+    m_ShaderSphere->set_vec4f("u_PointPlane", m_PointPlane.data());
+    m_ShaderSphere->set_float("u_Radius", m_Camera.get_radius()*m_SizeVertices*0.001);
+  }
+
+  void Basic_viewer::update_cylinder_uniforms()
+  {
+    m_ShaderCylinder->use();
+
+    bool half = m_DisplayMode == DisplayMode::CLIPPING_PLANE_SOLID_HALF_ONLY;
+    auto mode = half ? RenderingMode::DRAW_INSIDE_ONLY : RenderingMode::DRAW_ALL;
+
+    if (m_UseDefaultColor)
+    {
+      m_ShaderCylinder->set_int("u_UseDefaultColor", 1);
+      m_ShaderCylinder->set_vec3f("u_DefaultColor", m_DefaultColorSegment.data());
+    }
+    else 
+    {
+      m_ShaderCylinder->set_int("u_UseDefaultColor", 0);
+    }
+
+    m_ShaderCylinder->set_float("u_RenderingMode", static_cast<float>(mode));
+
+    m_ShaderCylinder->set_mat4f("u_Mvp", m_ViewProjectionMatrix.data());
+    m_ShaderCylinder->set_vec4f("u_ClipPlane",  m_ClipPlane.data());
+    m_ShaderCylinder->set_vec4f("u_PointPlane", m_PointPlane.data());
+    m_ShaderCylinder->set_float("u_Radius", m_Camera.get_radius()*m_SizeEdges*0.001);
+  }
+
+  void Basic_viewer::update_pl_uniforms(const vec3f& defaultColor)
+  {
+    m_ShaderPl->use();
+
+    bool half = m_DisplayMode == DisplayMode::CLIPPING_PLANE_SOLID_HALF_ONLY;
+    auto mode = half ? RenderingMode::DRAW_INSIDE_ONLY : RenderingMode::DRAW_ALL;
+
+    m_ShaderPl->set_mat4f("u_Mvp", m_ViewProjectionMatrix.data());
+    m_ShaderPl->set_float("u_PointSize", m_Camera.get_radius()*m_SizeVertices*0.1);
+    m_ShaderPl->set_int("u_IsOrthographic", static_cast<int>(m_Camera.is_orthographic()));
+    if (m_UseDefaultColor)
+    {
+      m_ShaderPl->set_int("u_UseDefaultColor", 1);
+      m_ShaderPl->set_vec3f("u_DefaultColor", defaultColor.data());
+    }
+    else 
+    {
+      m_ShaderPl->set_int("u_UseDefaultColor", 0);
+    }
+
+    m_ShaderPl->set_vec4f("u_ClipPlane",  m_ClipPlane.data());
+    m_ShaderPl->set_vec4f("u_PointPlane", m_PointPlane.data());
+    m_ShaderPl->set_float("u_RenderingMode", static_cast<float>(mode));
+  }
+
+  void Basic_viewer::update_line_uniforms(float size, const vec3f& defaultColor)
+  {
+    m_ShaderLine->use(); 
+
+    bool half = m_DisplayMode == DisplayMode::CLIPPING_PLANE_SOLID_HALF_ONLY;
+    auto mode = half ? RenderingMode::DRAW_INSIDE_ONLY : RenderingMode::DRAW_ALL;
+
+    float viewport[2] = { m_WindowSize.x(), m_WindowSize.y() }; 
+
+    m_ShaderLine->set_mat4f("u_Mvp", m_ViewProjectionMatrix.data());
+    m_ShaderLine->set_float("u_PointSize", size);
+    m_ShaderLine->set_int("u_IsOrthographic", static_cast<int>(m_Camera.is_orthographic()));
+    if (m_UseDefaultColor)
+    {
+      m_ShaderLine->set_int("u_UseDefaultColor", 1);
+      m_ShaderLine->set_vec3f("u_DefaultColor", defaultColor.data());
+    }
+    else 
+    {
+      m_ShaderLine->set_int("u_UseDefaultColor", 0);
+    }
+    
+    m_ShaderLine->set_vec2f("u_Viewport", &viewport[0]);
+
+    m_ShaderLine->set_vec4f("u_ClipPlane",  m_ClipPlane.data());
+    m_ShaderLine->set_vec4f("u_PointPlane", m_PointPlane.data());
+    m_ShaderLine->set_float("u_RenderingMode", static_cast<float>(mode));
+  }
+
+  void Basic_viewer::update_clipping_uniforms()
+  {
+    mat4f clippingModelMatrix = m_ClippingPlane.get_matrix();
+
+    m_PointPlane = clippingModelMatrix * vec4f(0, 0, 0, 1);
+    m_ClipPlane = clippingModelMatrix * vec4f(0, 0, 1, 0);
+
+    m_ShaderPlane->use();
+    m_ShaderPlane->set_mat4f("u_Vp", m_ViewProjectionMatrix.data());
+    m_ShaderPlane->set_mat4f("u_M",  clippingModelMatrix.data());
+  }
+
+  void Basic_viewer::update_world_axis_uniforms()
+  {
+    mat4f view = m_ViewMatrix;
+
+    // we only want the rotation part of the view matrix  
+    mat3f rotation = view.block<3,3>(0,0);
+
+    mat4f rotation4x4 = mat4f::Identity();
+    rotation4x4.block<3,3>(0,0) = rotation;
+
+    float halfWidth = m_AspectRatio * 0.1f;
+    float halfHeight = 0.1f;
+    mat4f projection = utils::ortho(-halfWidth, halfWidth, -halfHeight, halfHeight, -1.0f, 1.0f);
+
+    mat4f translation = transform::translation(vec3f(halfWidth - 0.1f*m_AspectRatio, halfHeight - 0.1f, 0.0f));
+
+    mat4f mvp = projection * rotation4x4 * translation;
+
+    m_ShaderArrow->use();
+    m_ShaderArrow->set_mat4f("u_Mvp", mvp.data()); 
+    m_ShaderArrow->set_float("u_SceneRadius", 1.0f); 
+  }
+
+  void Basic_viewer::update_XY_axis_uniforms()
+  {
+    m_ShaderArrow->use();
+    m_ShaderArrow->set_mat4f("u_Mvp", m_ViewProjectionMatrix.data());
+    m_ShaderArrow->set_float("u_SceneRadius", m_Camera.get_radius()); 
+  }
+
+  void Basic_viewer::update_XY_grid_uniforms()
+  {
+    m_ShaderGrid->use();
+    m_ShaderGrid->set_mat4f("u_Mvp", m_ViewProjectionMatrix.data());
+  }
+
+  void Basic_viewer::update_normals_uniforms()
+  {
+    m_ShaderNormal->use();
+
+    bool half = m_DisplayMode == DisplayMode::CLIPPING_PLANE_SOLID_HALF_ONLY;
+    auto mode = half ? RenderingMode::DRAW_INSIDE_ONLY : RenderingMode::DRAW_ALL;
+
+    vec4f color = color_to_normalized_vec4(m_DefaultColorNormal);
+    m_ShaderNormal->set_mat4f("u_Mv", m_ViewMatrix.data());
+    if (m_UseDefaultColorNormal)
+    {
+      m_ShaderNormal->set_int("u_UseDefaultColor", 1);
+      m_ShaderNormal->set_vec3f("u_DefaultColor", color.data());
+    }
+    else
+    {
+      m_ShaderNormal->set_int("u_UseDefaultColor", 0);
+    }
+    m_ShaderNormal->set_mat4f("u_Projection", m_ProjectionMatrix.data());
+    m_ShaderNormal->set_float("u_Factor", m_NormalHeightFactor);
+    m_ShaderNormal->set_float("u_SceneRadius", m_Camera.get_radius());
+    if (m_DisplayFaceNormal)
+    {
+      m_ShaderNormal->set_int("u_DisplayFaceNormal", 1);
+    }
+    else
+    {
+      m_ShaderNormal->set_int("u_DisplayFaceNormal", 0);
+    }
+
+    m_ShaderNormal->set_vec4f("u_ClipPlane",  m_ClipPlane.data());
+    m_ShaderNormal->set_vec4f("u_PointPlane", m_PointPlane.data());
+    m_ShaderNormal->set_float("u_RenderingMode", static_cast<float>(mode));
+  }
+
+  void Basic_viewer::update_triangles_uniforms()
+  {
+    m_ShaderTriangles->use();
+
+    bool half = m_DisplayMode == DisplayMode::CLIPPING_PLANE_SOLID_HALF_ONLY;
+    auto mode = half ? RenderingMode::DRAW_INSIDE_ONLY : RenderingMode::DRAW_ALL;
+
+    m_ShaderTriangles->set_mat4f("u_Mvp", m_ViewProjectionMatrix.data());
+
+    m_ShaderTriangles->set_vec4f("u_ClipPlane",  m_ClipPlane.data());
+    m_ShaderTriangles->set_vec4f("u_PointPlane", m_PointPlane.data());
+    m_ShaderTriangles->set_float("u_RenderingMode", static_cast<float>(mode));
+  }
+
+  bool Basic_viewer::need_update() const
+  {
+    return m_Camera.need_update() 
+        || m_ClippingPlane.need_update() 
+        || m_AnimationController.is_running()
+        || has_active_actions() 
+        ; 
+  }
+
+  void Basic_viewer::render_scene(const float deltaTime)
+  {
+    draw(deltaTime);
+    glfwSwapBuffers(m_Window);
+  }
+
+  void Basic_viewer::draw(const float deltaTime)
+  {
+    if (!m_AreBuffersInitialized)
+    {
+      load_scene();
+    }
+
+    glClearColor(1.0f, 1.0f, 1.0f, 1.f);
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    glEnable(GL_DEPTH_TEST);
+    glEnable(GL_PROGRAM_POINT_SIZE);
+    glEnable(GL_LINE_SMOOTH);
+
+    compute_model_view_projection_matrix(deltaTime);
+
+    if (m_DrawRays)
+    {
+      draw_rays();
+    }
+
+    if (m_DrawLines)
+    {
+      draw_lines();
+    }
+   
+    if (m_DrawEdges && !m_DrawMeshTriangles)
+    {
+      draw_edges();
+    }
+    
+    if (m_DrawVertices)
+    {
+      draw_vertices();
+    }
+
+    if (clipping_plane_enable())
+    {
+      render_clipping_plane();
+    }
+
+    if (m_DrawNormals)
+    {
+      draw_normals();
+    }  
+        
+    if (m_DrawFaces)
+    {
+      draw_faces();
+    }
+
+    if (m_DrawMeshTriangles)
+    {
+      draw_triangles();
+    }
+    
+    if (m_DrawWorldAxis)  
+    {
+      draw_world_axis();
+    }
+
+    if (m_DrawXYGrid) 
+    { 
+      draw_xy_grid();
+    }
+  }
+
+  inline
+  vec4f Basic_viewer::color_to_normalized_vec4(const CGAL::IO::Color& c) const
+  {
+    return { static_cast<float>(c.red()) / 255, static_cast<float>(c.green()) / 255, static_cast<float>(c.blue()) / 255, 1.0f };
+  }
+
+  inline
+  vec3f Basic_viewer::color_to_normalized_vec3(const CGAL::IO::Color& c) const
+  {
+    return { static_cast<float>(c.red()) / 255, static_cast<float>(c.green()) / 255, static_cast<float>(c.blue()) / 255 };
+  }
+
+  void Basic_viewer::draw_faces()
+  {
+    update_face_uniforms();
+
+    glEnable(GL_POLYGON_OFFSET_FILL);
+    glPolygonOffset(2.0, 2.0); 
+    glDepthFunc(GL_LESS);
+    if (m_DisplayMode == DisplayMode::CLIPPING_PLANE_SOLID_HALF_TRANSPARENT_HALF)
+    {
+      // The z-buffer will prevent transparent objects from being displayed behind other transparent objects.
+      // Before rendering all transparent objects, disable z-testing first.
+      
+      // 1. draw solid first
+      draw_faces_bis(RenderingMode::DRAW_INSIDE_ONLY);
+
+      // 2. draw transparent layer second with back face culling to avoid messy triangles
+      glDepthMask(false); // disable z-testing
+      glEnable(GL_BLEND);
+      glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+      glEnable(GL_CULL_FACE);
+      glCullFace(GL_BACK);
+      glFrontFace(GL_CW);
+      draw_faces_bis(RenderingMode::DRAW_OUTSIDE_ONLY);
+
+      // 3. draw solid again without culling and blend to make sure the solid mesh is visible
+      glDepthMask(true); // enable z-testing
+      glDisable(GL_CULL_FACE);
+      glDisable(GL_BLEND);
+      draw_faces_bis(RenderingMode::DRAW_INSIDE_ONLY);
+    } 
+    else // Not CLIPPING_PLANE_SOLID_HALF_TRANSPARENT_HALF
+    {
+      if (m_DisplayMode == DisplayMode::CLIPPING_PLANE_SOLID_HALF_WIRE_HALF ||
+          m_DisplayMode == DisplayMode::CLIPPING_PLANE_SOLID_HALF_ONLY)
+      {
+        // 1. draw solid HALF
+        draw_faces_bis(RenderingMode::DRAW_INSIDE_ONLY);
+      } 
+      else
+      {
+        // 1. draw solid FOR ALL
+        draw_faces_bis(RenderingMode::DRAW_ALL);
+      } 
+    }
+    glDisable(GL_POLYGON_OFFSET_FILL); 
+  }
+
+  void Basic_viewer::draw_faces_bis(RenderingMode mode)
+  {
+    m_ShaderFace->set_float("u_RenderingMode", static_cast<float>(mode));
+
+    glBindVertexArray(m_VAO[VAO_FACES]);
+    glDrawArrays(GL_TRIANGLES, 0, m_Scene.number_of_elements(Graphics_scene::POS_FACES));
+  }
+
+  void Basic_viewer::draw_rays()
+  {
+    update_pl_uniforms(m_DefaultColorRay);
+
+    m_ShaderPl->set_float("u_RenderingMode", static_cast<float>(RenderingMode::DRAW_ALL));
+
+    glLineWidth(m_SizeRays);
+    glBindVertexArray(m_VAO[VAO_RAYS]);
+    glDrawArrays(GL_LINES, 0, m_Scene.number_of_elements(Graphics_scene::POS_RAYS));
+    glLineWidth(1.0);
+  }
+
+  void Basic_viewer::draw_vertices()
+  {
+    update_pl_uniforms(m_DefaultColorPoint);
+    if (m_DrawSphereVertex && m_GeometryFeatureEnabled)
+    {
+      update_sphere_uniforms();
+    }
+
+    glBindVertexArray(m_VAO[VAO_POINTS]);
+    glDrawArrays(GL_POINTS, 0, m_Scene.number_of_elements(Graphics_scene::POS_POINTS));
+  }
+
+  void Basic_viewer::draw_lines()
+  {
+    update_pl_uniforms(m_DefaultColorLine);
+
+    m_ShaderPl->set_float("u_RenderingMode", static_cast<float>(RenderingMode::DRAW_ALL));
+
+    glLineWidth(m_SizeLines);
+    glBindVertexArray(m_VAO[VAO_LINES]);
+    glDrawArrays(GL_LINES, 0, m_Scene.number_of_elements(Graphics_scene::POS_LINES));
+    glLineWidth(1.0);
+  }
+
+  void Basic_viewer::draw_edges()
+  {
+    update_line_uniforms(m_SizeEdges, m_DefaultColorSegment);
+    if (m_DrawCylinderEdge && m_GeometryFeatureEnabled)
+    {
+      update_cylinder_uniforms();
+    }
+
+    glDepthFunc(GL_LEQUAL);
+    glBindVertexArray(m_VAO[VAO_SEGMENTS]);
+    glDrawArrays(GL_LINES, 0, m_Scene.number_of_elements(Graphics_scene::POS_SEGMENTS));
+  }
+
+
+  void Basic_viewer::draw_world_axis() 
+  {
+    update_world_axis_uniforms();
+    glDepthFunc(GL_LEQUAL);
+
+    int &w = m_WindowSize.x();
+    int &h = m_WindowSize.y();
+
+    glViewport(w - w / 5, h - h / 5, w / 5, h / 5);
+    m_WorldAxisRenderer.draw();
+
+    // Restore the main viewport
+    glViewport(0, 0, w, h);
+  }
+
+  void Basic_viewer::draw_xy_grid() 
+  { 
+    glDepthFunc(GL_LEQUAL);
+
+    update_XY_grid_uniforms();
+    m_XYGridRenderer.draw();
+    update_XY_axis_uniforms();
+    m_XYAxisRenderer.draw();
+  }
+
+  void Basic_viewer::draw_normals()
+  {
+    update_normals_uniforms();
+
+    glDepthFunc(GL_LEQUAL);
+    glBindVertexArray(m_VAO[VAO_FACES]);
+    glLineWidth(m_SizeNormals);
+    glDrawArrays(GL_TRIANGLES, 0, m_Scene.number_of_elements(Graphics_scene::POS_FACES));
+  }
+
+  void Basic_viewer::draw_triangles()
+  {
+    update_triangles_uniforms();
+
+    glDepthFunc(GL_LEQUAL);
+    glBindVertexArray(m_VAO[VAO_FACES]);
+    glDrawArrays(GL_TRIANGLES, 0, m_Scene.number_of_elements(Graphics_scene::POS_FACES));
+  }
+
+  void Basic_viewer::initialize_and_load_clipping_plane()
+  {
+    float size = ((m_Scene.bounding_box().xmax() - m_Scene.bounding_box().xmin()) +
+                  (m_Scene.bounding_box().ymax() - m_Scene.bounding_box().ymin()) +
+                  (m_Scene.bounding_box().zmax() - m_Scene.bounding_box().zmin()));
+
+    const unsigned int NB_SUBDIVISIONS = 30;
+
+    m_ClippingPlane.initialize_buffers({ // Use VERTEX_SOURCE_CLIPPING_PLANE
+      {ShaderDataType::FLOAT3}, // a_Pos
+    });
+    m_ClippingPlane.set_width(0.2f);
+    m_ClippingPlane.add_line({0.0, 0.0, 0.0}, {0.0, 0.0, 1.0}, {0.0, 0.0, 0.0});
+    generate_grid(m_ClippingPlane, size, NB_SUBDIVISIONS);
+    m_ClippingPlane.load_buffers();
+
+    m_ClippingPlane.set_size(m_Camera.get_size());  
+  }
+
+  void Basic_viewer::render_clipping_plane()
+  {
+    if (!m_IsOpengl4_3)
+    {
+      return;
+    }
+
+    update_clipping_uniforms();
+    if (m_DrawClippingPlane)
+    {
+      m_ClippingPlane.draw();
+    }
+  }
+
+  void Basic_viewer::key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
+  {
+    auto viewer = static_cast<Basic_viewer*>(glfwGetWindowUserPointer(window));
+    viewer->on_key_event(key, scancode, action, mods);
+  }
+
+  void Basic_viewer::cursor_callback(GLFWwindow* window, double xpos, double ypo)
+  {
+    auto viewer = static_cast<Basic_viewer*>(glfwGetWindowUserPointer(window));
+    int windowWidth, windowHeight;
+    glfwGetWindowSize(window, &windowWidth, &windowHeight);
+    viewer->on_cursor_event(xpos, ypo, windowWidth, windowHeight);
+  }
+
+  void Basic_viewer::mouse_btn_callback(GLFWwindow* window, int button, int action, int mods)
+  {
+    auto viewer = static_cast<Basic_viewer*>(glfwGetWindowUserPointer(window));
+    viewer->on_mouse_button_event(button, action, mods);
+  }
+
+  void Basic_viewer::window_size_callback(GLFWwindow* window, int width, int height)
+  {
+    auto viewer = static_cast<Basic_viewer*>(glfwGetWindowUserPointer(window));
+    viewer->m_WindowSize = {width, height};
+
+    viewer->m_AspectRatio = static_cast<float>(width) / height;
+    glViewport(0, 0, width, height);
+
+    viewer->render_scene(viewer->m_DeltaTime);
+  }
+
+  void Basic_viewer::scroll_callback(GLFWwindow* window, double xoffset, double yoffset)
+  {
+    auto viewer = static_cast<Basic_viewer*>(glfwGetWindowUserPointer(window));
+    viewer->on_scroll_event(xoffset, yoffset);
+  }
+ 
+  void Basic_viewer::print_application_state(float& elapsedTime, const float deltaTime)
+  {
+    elapsedTime += deltaTime;
+    if (elapsedTime * 1000 > 100) // update terminal display each 100ms
+    {
+      elapsedTime = 0.0f;
+      if (m_PrintApplicationState)
+      {
+        std::cout << "\33[2K"  
+                  << std::round(1 / deltaTime)      << " fps    " 
+                  << deltaTime*1000                 << " ms\n\33[2K" 
+                  << "Camera type: "                << (m_Camera.is_orbiter() ? "ORBITER" : "FREE_FLY")               << "    " 
+                  << "Camera mode: "                << (m_Camera.is_orthographic() ? "ORTHOGRAPHIC" : "PERSPECTIVE")  << "    " 
+                  << "FOV: "                        << m_Camera.get_fov()                                             << " \n\33[2K" 
+                  << "Camera translation speed: "   << m_Camera.get_translation_speed()                        << "    " 
+                  << "Camera rotation speed: "      << std::round(m_Camera.get_rotation_speed())               << "    "
+                  << "Camera constraint axis: "     << m_Camera.get_constraint_axis_str()                      << "\n\33[2K"     
+                  << "CP translation speed: "       << m_ClippingPlane.get_translation_speed()                 << "    "            
+                  << "CP rotation speed: "          << std::round(m_ClippingPlane.get_rotation_speed())        << "    "     
+                  << "CP constraint axis: "         << m_ClippingPlane.get_constraint_axis_str()               << "\n\33[2K" 
+                  << "Reversed normals : "          << (m_InverseNormal ? "TRUE" : "FALSE")                    << "    " 
+                  << "Face normal : "               << (m_DisplayFaceNormal ? "TRUE" : "FALSE")                << "    " 
+                  << "Shading : "                   << (m_FlatShading ? "FLAT" : "SMOOTH")                          << "\n\33[2K"
+                  << "Draw faces: "                 << (m_DrawFaces ? "TRUE" : "FALSE")                        << "    " 
+                  << "Draw edges: "                 << (m_DrawEdges ? "TRUE" : "FALSE")                        << "    " 
+                  << "Draw vertices: "              << (m_DrawVertices ? "TRUE" : "FALSE")                     << "\n\33[2K"
+                  << "Draw lines: "                 << (m_DrawLines ? "TRUE" : "FALSE")                        << "    " 
+                  << "Draw rays: "                  << (m_DrawRays ? "TRUE" : "FALSE")                         << "    " 
+                  << "Draw normals: "               << (m_DrawNormals ? "TRUE" : "FALSE")                      << "\n\33[2K"  
+                  << "Draw edges as cylinder: "     << (m_DrawCylinderEdge ? "TRUE" : "FALSE")                 << "    " 
+                  << "Draw vertices as sphere: "    << (m_DrawSphereVertex ? "TRUE" : "FALSE")                 << "\n\33[2K"    
+                  << "Use default color: "          << (m_UseDefaultColor ? "TRUE" : "FALSE")                  << "    " 
+                  << "Number of key frames: "       << m_AnimationController.number_of_key_frames()            << "\n\33[2K"     
+                  << "Light color: ("               << m_AmbientColor.x()                                      << ", " 
+                                                    << m_AmbientColor.y()                                      << ", " 
+                                                    << m_AmbientColor.z()                                      << ")\n\33[2K"     
+                  << "Size of vertices: "           << m_SizeVertices << "    Size of edges: " <<  m_SizeEdges << "    "            
+                  << "\033[F\033[F\033[F\033[F\033[F\033[F\033[F\033[F\033[F\033[F\r"   << std::flush;
+      }
+    }
+  }
+
+  void Basic_viewer::start_action(int action, const float deltaTime)
+  {
+    switch (action)
+    {
+    case ROTATE_CLIPPING_PLANE:
+    case TRANSLATE_CLIPPING_PLANE:
+    case TRANSLATE_CP_ALONG_CAMERA_DIRECTION:
+    case TRANSLATE_CAMERA:
+    case ROTATE_CAMERA:
+      // glfwSetInputMode(m_Window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
+      break;
+    }
+  }
+ 
+  void Basic_viewer::exit_app() 
+  {
+    std::cout << "\n\n\n\n\n\n\n\n\n\n\n\nAPPLICATION IS CLOSING" << std::endl;
+    exit(EXIT_SUCCESS);
+  }
+
+  void Basic_viewer::check_geometry_feature_availability()
+  {
+    int maxGeometryOutputVertices = 0;
+    glGetIntegerv(GL_MAX_GEOMETRY_OUTPUT_VERTICES, &maxGeometryOutputVertices);
+    int maxGeometryOutputComponents = 0;
+    glGetIntegerv(GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS, &maxGeometryOutputComponents);
+
+    if (maxGeometryOutputVertices < 128 || maxGeometryOutputComponents < 1024)
+    {
+      std::cout << "Cylinder edge and sphere vertex feature disabled! (maxGeometryOutputVertices=" << maxGeometryOutputVertices << ", maxGeometryOutputComponents=" << maxGeometryOutputComponents << ")\n";
+      m_GeometryFeatureEnabled = false; 
+    }
+  }
+
+  void Basic_viewer::double_click_event(int btn)
+  {
+    if (m_Camera.is_orbiter()) 
+    {
+      if (btn == GLFW_MOUSE_BUTTON_RIGHT)
+      {
+        if (is_key_pressed(m_Window, GLFW_KEY_LEFT_CONTROL)) 
+        {
+          m_Camera.reset_orientation();
+        }
+        m_Camera.reset_position();
+      }
+      else if (btn == GLFW_MOUSE_BUTTON_LEFT)
+      {
+        if (is_key_pressed(m_Window, GLFW_KEY_LEFT_CONTROL))
+        {
+          m_ClippingPlane.align_to_direction(m_Camera.get_forward());
+        }
+        else if (is_key_pressed(m_Window, GLFW_KEY_LEFT_SHIFT))
+        {
+          m_Camera.align_to_plane(m_ClippingPlane.get_normal());
+        }
+        else
+        {
+          m_Camera.align_to_nearest_axis();
+        }
+      }
+      else if (btn == GLFW_MOUSE_BUTTON_MIDDLE)
+      {
+        m_Camera.reset_size();
+      }
+    }
+  }
+
+  void Basic_viewer::scroll_event(const float deltaTime)
+  {
+    float yoffset = get_scroll_yOffset() / m_AspectRatio;
+
+    if (is_key_pressed(m_Window, GLFW_KEY_LEFT_SHIFT))
+    {
+      m_Camera.increase_zoom_smoothness(yoffset);
+    }
+    else if (is_key_pressed(m_Window, GLFW_KEY_Z) && !m_Camera.is_orthographic())
+    {
+      m_Camera.increase_fov(yoffset);
+      m_ClippingPlane.set_size(m_Camera.get_size());
+    }
+    else if (is_key_pressed(m_Window, GLFW_KEY_LEFT_CONTROL) && m_DisplayMode != DisplayMode::CLIPPING_PLANE_OFF)
+    {
+        m_ClippingPlane.translation(8.f * yoffset * deltaTime);
+    }
+    else 
+    {
+      m_Camera.move(8.f * yoffset * deltaTime);
+      m_ClippingPlane.set_size(m_Camera.get_size());
+    }
+  }
+ 
+  void Basic_viewer::change_pivot_point() 
+  {
+    auto [mouseX, mouseY] = get_mouse_position();
+
+    vec2f nc = utils::normalized_coordinates({mouseX, mouseY}, m_WindowSize.x(), m_WindowSize.y());
+
+    vec3f cameraPosition = m_Camera.get_position(); 
+    float cameraX = cameraPosition.x();
+    float cameraY = cameraPosition.y();
+
+    float xValue = nc.x() + cameraX; 
+    float yValue = nc.y() + cameraY;
+
+    // vec4f test = {cameraPosition.x(), cameraPosition.y(), cameraPosition.z(), 1.0};
+
+    // vec4f vppos = transform::viewport(m_WindowSize.x(), m_WindowSize.y) * 
+
+    if (utils::inside_bounding_box_2d({xValue, yValue}, {m_BoundingBox.first.x(), m_BoundingBox.first.y()}, {m_BoundingBox.second.x(), m_BoundingBox.second.y()})) 
+    {
+      std::cout << "INSIDE\n";
+      m_Camera.set_center({nc.x(), nc.y(), 0});
+    }
+    else 
+    {
+      m_Camera.set_center(utils::center(m_BoundingBox.first, m_BoundingBox.second));
+      std::cout << "OUTSIDE\n";
+    }
+
+    // std::cout << "Mouse position : " << nc.x() << " " << nc.y() << ", Camera position : " << cameraPosition.transpose() << "\n";
+    // std::cout << "BBOX : " << m_BoundingBox.first.transpose() << " " << m_BoundingBox.second.transpose() << "\n";
+  }
+
+  void Basic_viewer::action_event(int action, const float deltaTime)
+  {
+    switch (action)
+    {
+    /*APPLICATION*/
+    case EXIT: 
+      exit_app();
+    case PRINT_APPLICATION_STATE:
+      m_PrintApplicationState = !m_PrintApplicationState; 
+      std::cout << "\33[2K\n\33[2K\n\33[2K\n\33[2K\n\33[2K\n\33[2K\n\33[2K\n\33[2K\n\33[2K\n\33[2K\n\33[2K"
+                << "\033[F\033[F\033[F\033[F\033[F\033[F\033[F\033[F\033[F\033[F\r" << std::flush;
+      break;
+    /*WINDOW*/
+    case FULLSCREEN:
+      fullscreen();
+      break;
+    case SCREENSHOT:
+      capture_screenshot("./screenshot.png");
+      break;
+    /*SCENE*/
+    case NORMALS_DISPLAY:
+      m_DrawNormals = !m_DrawNormals;
+      break;
+    case FACE_NORMALS_DISPLAY:
+      m_DisplayFaceNormal = !m_DisplayFaceNormal; 
+      break;
+    case TRIANGLES_DISPLAY: 
+      m_DrawMeshTriangles = !m_DrawMeshTriangles;
+      break;
+    case VERTICES_DISPLAY:
+      m_DrawVertices = !m_DrawVertices;
+      break;
+    case SPHERE_VERTEX_DISPLAY:
+      m_DrawSphereVertex = !m_DrawSphereVertex;
+      break;
+    case FACES_DISPLAY:
+      m_DrawFaces = !m_DrawFaces;
+      break;
+    case EDGES_DISPLAY:
+      m_DrawEdges = !m_DrawEdges;
+      break;
+    case CYLINDER_EDGE_DISPLAY:
+      m_DrawCylinderEdge = !m_DrawCylinderEdge;
+      break;
+    case SHADING_MODE:
+      m_FlatShading = !m_FlatShading;
+      m_AreBuffersInitialized = false;
+      break;
+    case INVERSE_NORMAL:
+      m_InverseNormal = !m_InverseNormal;
+      m_Scene.reverse_all_normals();
+      m_AreBuffersInitialized = false;
+      break;
+    case MONO_COLOR:
+      m_UseDefaultColor = !m_UseDefaultColor;
+      break;
+    case NORMALS_MONO_COLOR: 
+      m_UseDefaultColorNormal = !m_UseDefaultColorNormal;
+      break;
+    case INC_EDGES_SIZE:
+      increase_size_edge(deltaTime);
+      break;
+    case DEC_EDGES_SIZE:
+      decrease_size_edge(deltaTime);
+      break;
+    case INC_POINTS_SIZE:
+      increase_size_vertex(deltaTime);
+      break;
+    case DEC_POINTS_SIZE:
+      decrease_size_vertex(deltaTime);
+      break;
+    case INC_LIGHT_ALL:
+      increase_light_all(deltaTime);
+      break;
+    case DEC_LIGHT_ALL:
+      increase_light_all(-deltaTime);
+      break;
+    case INC_LIGHT_R:
+      increase_red_component(deltaTime);
+      break;
+    case INC_LIGHT_G:
+      increase_green_component(deltaTime);
+      break;
+    case INC_LIGHT_B:
+      increase_blue_component(deltaTime);
+      break;
+    case DEC_LIGHT_R:
+      increase_red_component(-deltaTime);
+      break;
+    case DEC_LIGHT_G:
+      increase_green_component(-deltaTime);
+      break;
+    case DEC_LIGHT_B:
+      increase_blue_component(-deltaTime);
+      break;
+    case WORLD_AXIS_DISPLAY:
+      m_DrawWorldAxis = !m_DrawWorldAxis;
+      break;
+    case XY_GRID_DISPLAY:
+      m_DrawXYGrid = !m_DrawXYGrid;
+      break;
+    /*CAMERA*/
+    case UP:
+      m_Camera.move_up(deltaTime);
+      break;
+    case DOWN:
+      m_Camera.move_down(deltaTime);
+      break;
+    case LEFT:
+      m_Camera.move_left(deltaTime);
+      break;
+    case RIGHT:
+      m_Camera.move_right(deltaTime);
+      break;
+    case FORWARD:
+      m_Camera.move(deltaTime);
+      break;
+    case BACKWARDS:
+      m_Camera.move(-deltaTime);
+      break;
+    case INC_CAMERA_ROTATION_SMOOTHNESS:
+      m_Camera.increase_rotation_smoothness(deltaTime);
+      break;
+    case DEC_CAMERA_ROTATION_SMOOTHNESS:
+      m_Camera.decrease_rotation_smoothness(deltaTime);
+      break;
+    case INC_CAMERA_TRANSLATION_SMOOTHNESS:
+      m_Camera.increase_translation_smoothness(deltaTime);
+      break;
+    case DEC_CAMERA_TRANSLATION_SMOOTHNESS:
+      m_Camera.decrease_translation_smoothness(deltaTime);
+      break;
+    case SWITCH_CAMERA_MODE:
+      m_Camera.toggle_mode();
+      break;
+    case SWITCH_CAMERA_TYPE:
+      m_Camera.toggle_type();
+      break;
+    case SWITCH_CAMERA_CONSTRAINT_AXIS: 
+      m_Camera.switch_constraint_axis();
+      break;
+    case INC_CAMERA_TRANSLATION_SPEED:
+      m_Camera.increase_translation_speed(deltaTime);
+      break;
+    case DEC_CAMERA_TRANSLATION_SPEED:
+      m_Camera.decrease_translation_speed(deltaTime);
+      break;
+    case INC_CAMERA_ROTATION_SPEED:
+      m_Camera.increase_rotation_speed(deltaTime);
+      break;
+    case DEC_CAMERA_ROTATION_SPEED:
+      m_Camera.decrease_rotation_speed(deltaTime);
+      break;
+    case ROTATE_CAMERA:
+      rotate_camera();
+      break;
+    case TRANSLATE_CAMERA:
+      translate_camera(deltaTime);
+      break;
+    case RESET_CAMERA_AND_CP:
+      reset_camera_and_clipping_plane();
+      break;
+    case CHANGE_PIVOT_POINT:
+      change_pivot_point();
+      break;
+    /*CLIPPING PLANE*/
+    case INC_CP_TRANSLATION_SPEED:
+      m_ClippingPlane.increase_translation_speed(deltaTime);
+      break;
+    case DEC_CP_TRANSLATION_SPEED:
+      m_ClippingPlane.decrease_translation_speed(deltaTime);
+      break;
+    case INC_CP_ROTATION_SPEED:
+      m_ClippingPlane.increase_rotation_speed(deltaTime);
+      break;
+    case DEC_CP_ROTATION_SPEED:
+      m_ClippingPlane.decrease_rotation_speed(deltaTime);
+      break;
+    case SWITCH_CLIPPING_PLANE_DISPLAY:
+      m_DrawClippingPlane = !m_DrawClippingPlane;
+      break;
+    case SWITCH_CLIPPING_PLANE_MODE:
+      switch_display_mode();
+      break;
+    case ROTATE_CLIPPING_PLANE:
+      rotate_clipping_plane();
+      break;
+    case TRANSLATE_CLIPPING_PLANE:
+      translate_clipping_plane(deltaTime);
+      break;
+    case TRANSLATE_CP_ALONG_CAMERA_DIRECTION:
+      translate_clipping_plane(deltaTime, true);
+      break;
+    case SWITCH_CP_CONSTRAINT_AXIS:
+      m_ClippingPlane.switch_constraint_axis();
+      break;
+    case RESET_CLIPPING_PLANE: 
+      reset_clipping_plane();
+      break;
+    /*ANIMATION*/
+    case SAVE_KEY_FRAME:
+      save_key_frame();
+      break;
+    case RUN_OR_STOP_ANIMATION:
+      run_or_stop_animation();
+      break;
+    case CLEAR_ANIMATION: 
+      m_AnimationController.clear_buffer();
+      break;
+    }
+  }
+ 
+  void Basic_viewer::increase_size_edge(const float deltaTime)
+  {
+    float upperBound = 20.0;  
+    m_SizeEdges = std::min(upperBound, m_SizeEdges + 10.0f*deltaTime);
+  }
+
+  void Basic_viewer::decrease_size_edge(const float deltaTime)
+  {
+    float lowerBound = 0.01;
+    m_SizeEdges = std::max(lowerBound, m_SizeEdges - 10.0f*deltaTime);
+  }
+
+  void Basic_viewer::increase_size_vertex(const float deltaTime)
+  {
+    float upperBound = 50.0;  
+    m_SizeVertices = std::min(upperBound, m_SizeVertices + 10.0f*deltaTime);
+  }
+
+  void Basic_viewer::decrease_size_vertex(const float deltaTime)
+  {
+    float lowerBound = 0.01;
+    m_SizeVertices = std::max(lowerBound, m_SizeVertices - 10.0f*deltaTime);
+  }
+
+  void Basic_viewer::increase_red_component(const float deltaTime)
+  {
+    float speed = deltaTime;
+    m_AmbientColor.x() += speed;
+    if (m_AmbientColor.x() > 1.f)
+      m_AmbientColor.x() = 1.f;
+    if (m_AmbientColor.x() < 0.f)
+      m_AmbientColor.x() = 0.f;
+
+    m_DiffuseColor.x() += speed;
+    if (m_DiffuseColor.x() > 1.f)
+      m_DiffuseColor.x() = 1.f;
+    if (m_DiffuseColor.x() < 0.f)
+      m_DiffuseColor.x() = 0.f;
+
+    m_SpecularColor.x() += speed;
+    if (m_SpecularColor.x() > 1.f)
+      m_SpecularColor.x() = 1.f;
+    if (m_SpecularColor.x() < 0.f)
+      m_SpecularColor.x() = 0.f;
+  }
+ 
+  void Basic_viewer::increase_green_component(const float deltaTime)
+  {
+    float speed = deltaTime;
+    m_AmbientColor.y() += speed;
+    if (m_AmbientColor.y() > 1.f)
+      m_AmbientColor.y() = 1.f;
+    if (m_AmbientColor.y() < 0.f)
+      m_AmbientColor.y() = 0.f;
+
+    m_DiffuseColor.y() += speed;
+    if (m_DiffuseColor.y() > 1.f)
+      m_DiffuseColor.y() = 1.f;
+    if (m_DiffuseColor.y() < 0.f)
+      m_DiffuseColor.y() = 0.f;
+
+    m_SpecularColor.y() += speed;
+    if (m_SpecularColor.y() > 1.f)
+      m_SpecularColor.y() = 1.f;
+    if (m_SpecularColor.y() < 0.f)
+      m_SpecularColor.y() = 0.f;
+  }
+ 
+  void Basic_viewer::increase_blue_component(const float deltaTime)
+  {
+    float speed = deltaTime;
+    m_AmbientColor.z() += speed;
+    if (m_AmbientColor.z() > 1.f)
+      m_AmbientColor.z() = 1.f;
+    if (m_AmbientColor.z() < 0.f)
+      m_AmbientColor.z() = 0.f;
+
+    m_DiffuseColor.z() += speed;
+    if (m_DiffuseColor.z() > 1.f)
+      m_DiffuseColor.z() = 1.f;
+    if (m_DiffuseColor.z() < 0.f)
+      m_DiffuseColor.z() = 0.f;
+
+    m_SpecularColor.z() += speed;
+    if (m_SpecularColor.z() > 1.f)
+      m_SpecularColor.z() = 1.f;
+    if (m_SpecularColor.z() < 0.f)
+      m_SpecularColor.z() = 0.f;
+  }
+
+ 
+  void Basic_viewer::increase_light_all(const float deltaTime)
+  {
+    increase_red_component(deltaTime);
+    increase_green_component(deltaTime);
+    increase_blue_component(deltaTime);
+  }
+ 
+  void Basic_viewer::save_key_frame() 
+  {
+    if (m_Camera.is_orbiter())
+    {
+      m_AnimationController.add_key_frame(
+        m_Camera.get_position(),
+        m_Camera.get_orientation()
+      );
+    }
+  }
+ 
+  void Basic_viewer::run_or_stop_animation() 
+  {
+    if (m_Camera.is_orbiter())
+    {
+      if (m_AnimationController.is_running()) 
+      {
+        m_AnimationController.stop(m_AnimationController.get_frame());
+      }
+      else 
+      {
+        m_AnimationController.start();
+      }
+    }
+  }
+
+  void Basic_viewer::reset_camera_and_clipping_plane()
+  {
+    m_Camera.reset_all();
+    m_ClippingPlane.reset_all();
+    m_ClippingPlane.set_size(m_Camera.get_size());
+  }
+
+  void Basic_viewer::reset_clipping_plane()
+  {
+    m_ClippingPlane.reset_all();
+    m_ClippingPlane.set_size(m_Camera.get_size());
+  }
+
+  void Basic_viewer::switch_display_mode()
+  {
+    switch(m_DisplayMode) 
+    {
+    case DisplayMode::CLIPPING_PLANE_OFF:
+      m_DisplayMode = DisplayMode::CLIPPING_PLANE_SOLID_HALF_TRANSPARENT_HALF; 
+      break;
+    case DisplayMode::CLIPPING_PLANE_SOLID_HALF_TRANSPARENT_HALF:
+      m_DisplayMode = DisplayMode::CLIPPING_PLANE_SOLID_HALF_WIRE_HALF; 
+      break;
+    case DisplayMode::CLIPPING_PLANE_SOLID_HALF_WIRE_HALF: 
+      m_DisplayMode = DisplayMode::CLIPPING_PLANE_SOLID_HALF_ONLY; 
+      break;
+    case DisplayMode::CLIPPING_PLANE_SOLID_HALF_ONLY: 
+      m_DisplayMode = DisplayMode::CLIPPING_PLANE_OFF; 
+      break;
+    }
+  }
+
+  void Basic_viewer::rotate_clipping_plane()
+  {
+    auto [mouseDeltaX, mouseDeltaY] = get_mouse_delta();
+
+    m_ClippingPlane.set_right_axis(m_Camera.get_right());
+    m_ClippingPlane.set_up_axis(m_Camera.get_up());
+
+    m_ClippingPlane.rotation(
+      mouseDeltaX / m_AspectRatio, 
+      mouseDeltaY / m_AspectRatio
+    );
+  }
+
+  void Basic_viewer::translate_clipping_plane(const float deltaTime, bool useCameraForward)
+  {
+    auto [mouseDeltaX, mouseDeltaY] = get_mouse_delta();
+
+    float deltaX = deltaTime * mouseDeltaX / m_AspectRatio;
+    float deltaY = deltaTime * mouseDeltaY / m_AspectRatio;
+
+    if (useCameraForward)
+    {
+      vec3f forwardDirection = m_Camera.get_forward();
+
+      float s = abs(deltaY) > abs(deltaX) ? -deltaY : deltaX;
+
+      m_ClippingPlane.translation(forwardDirection, s);
+    }
+    else 
+    {
+      m_ClippingPlane.translation(-deltaX, deltaY);
+    }
+  }
+
+  void Basic_viewer::rotate_camera()
+  {
+    auto mouseDelta = get_mouse_delta();
+
+    if (m_Camera.get_constraint_axis_str() == "Forward")
+    {
+      mouseDelta = get_roll_mouse_delta();
+    }
+
+    float mouseDeltaX = mouseDelta.first;
+    float mouseDeltaY = mouseDelta.second; 
+    
+    m_Camera.rotation(
+      mouseDeltaX / m_AspectRatio, 
+      mouseDeltaY / m_AspectRatio
+    );
+  }
+
+  void Basic_viewer::translate_camera(const float deltaTime)
+  {
+    auto [mouseDeltaX, mouseDeltaY] = get_mouse_delta();
+
+    m_Camera.translation(
+      deltaTime * -mouseDeltaX / m_AspectRatio,
+      deltaTime * mouseDeltaY / m_AspectRatio
+    );
+  }
+
+  void Basic_viewer::fullscreen()
+  {
+    m_IsFullscreen = !m_IsFullscreen;
+
+    int count;
+    GLFWmonitor *monitor = glfwGetMonitors(&count)[0];
+    const GLFWvidmode *mode = glfwGetVideoMode(monitor);
+
+    if (m_IsFullscreen) 
+    {
+      m_OldWindowSize = m_WindowSize;
+
+#if !defined(GLFW_USE_WAYLAND)
+      glfwGetWindowPos(m_Window, &m_OldWindowPosition.x(), &m_OldWindowPosition.y()); 
+#endif 
+      glfwSetWindowMonitor(m_Window, monitor, 0, 0, mode->width, mode->height, mode->refreshRate);
+      glViewport(0, 0, mode->width, mode->height);
+
+      m_WindowSize.x() = mode->width;
+      m_WindowSize.y() = mode->height;
+    }
+    else 
+    {
+      m_WindowSize = m_OldWindowSize;
+      glfwSetWindowMonitor(m_Window, nullptr, m_OldWindowPosition.x(), m_OldWindowPosition.y(), m_WindowSize.x(), m_WindowSize.y(), mode->refreshRate);
+      glViewport(0, 0, m_WindowSize.x(), m_WindowSize.y());
+    }
+  }
+
+  void Basic_viewer::capture_screenshot(const std::string &filepath)
+  {
+    // https://lencerf.github.io/post/2019-09-21-save-the-opengl-rendering-to-image-file/ (thanks)
+    // https://github.com/nothings/stb/
+    // The stb lib used here is from glfw/deps
+
+    glEnable(GL_DEPTH_TEST);
+    glEnable(GL_STENCIL_TEST);
+
+    const GLsizei NB_CHANNELS = 4;
+    GLsizei stride = NB_CHANNELS * m_WindowSize.x();
+    stride += (stride % 4) ? (4 - stride % 4) : 0; // stride must be a multiple of 4
+    GLsizei bufferSize = stride * m_WindowSize.y();
+
+    std::vector<char> buffer(bufferSize);
+    m_ShaderFace->use(); 
+    glPixelStorei(GL_PACK_ALIGNMENT, 4);
+
+    glReadBuffer(GL_FRONT);
+    glReadPixels(0, 0, m_WindowSize.x(), m_WindowSize.y(), GL_RGBA, GL_UNSIGNED_BYTE, buffer.data());
+
+    stbi_flip_vertically_on_write(true);
+    stbi_write_png(filepath.data(), m_WindowSize.x(), m_WindowSize.y(), NB_CHANNELS, buffer.data(), stride);
+  }
+ 
+  void Basic_viewer::end_action(int action, const float deltaTime)
+  {
+    switch (action)
+    {
+    case TRANSLATE_CAMERA:
+    case ROTATE_CAMERA:
+      glfwSetInputMode(m_Window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
+      break;
+    }
+  }
+
+  void Basic_viewer::initialize_keys_actions()
+  {
+    /*APPLICATION*/
+    add_keyboard_action({GLFW_KEY_ESCAPE                  }, InputMode::RELEASE, EXIT);
+    add_keyboard_action({GLFW_KEY_Q, GLFW_KEY_LEFT_CONTROL}, InputMode::RELEASE, EXIT);
+    add_keyboard_action({GLFW_KEY_T                       }, InputMode::RELEASE, PRINT_APPLICATION_STATE);
+
+    /*WINDOW*/
+    add_keyboard_action({GLFW_KEY_ENTER, GLFW_KEY_LEFT_ALT}, InputMode::RELEASE, FULLSCREEN);
+    add_keyboard_action({GLFW_KEY_F2                      }, InputMode::RELEASE, SCREENSHOT);
+
+    /*SCENE*/
+
+    add_keyboard_action({GLFW_KEY_N, GLFW_KEY_LEFT_SHIFT}, InputMode::RELEASE, FACE_NORMALS_DISPLAY);
+    add_keyboard_action({GLFW_KEY_N, GLFW_KEY_LEFT_CONTROL}, InputMode::RELEASE, NORMALS_DISPLAY);
+    add_keyboard_action({GLFW_KEY_M, GLFW_KEY_LEFT_CONTROL}, InputMode::RELEASE, NORMALS_MONO_COLOR);
+
+    add_keyboard_action({GLFW_KEY_T, GLFW_KEY_LEFT_CONTROL}, InputMode::RELEASE, TRIANGLES_DISPLAY);
+
+    add_keyboard_action({GLFW_KEY_A}, InputMode::RELEASE, WORLD_AXIS_DISPLAY);
+    add_keyboard_action({GLFW_KEY_G}, InputMode::RELEASE, XY_GRID_DISPLAY);
+
+    add_keyboard_action({GLFW_KEY_W}, InputMode::RELEASE, FACES_DISPLAY);
+    add_keyboard_action({GLFW_KEY_V}, InputMode::RELEASE, VERTICES_DISPLAY);
+    add_keyboard_action({GLFW_KEY_E}, InputMode::RELEASE, EDGES_DISPLAY);
+
+    add_keyboard_action({GLFW_KEY_S}, InputMode::RELEASE, SHADING_MODE);
+    add_keyboard_action({GLFW_KEY_N}, InputMode::RELEASE, INVERSE_NORMAL);
+    add_keyboard_action({GLFW_KEY_M}, InputMode::RELEASE, MONO_COLOR);
+
+    add_keyboard_action({GLFW_KEY_E, GLFW_KEY_LEFT_CONTROL}, InputMode::RELEASE, CYLINDER_EDGE_DISPLAY);
+    add_keyboard_action({GLFW_KEY_V, GLFW_KEY_LEFT_CONTROL}, InputMode::RELEASE, SPHERE_VERTEX_DISPLAY);
+
+    add_keyboard_action({GLFW_KEY_EQUAL, GLFW_KEY_LEFT_SHIFT, GLFW_KEY_LEFT_CONTROL}, InputMode::HOLD, INC_POINTS_SIZE);
+    add_keyboard_action({GLFW_KEY_KP_ADD, GLFW_KEY_LEFT_CONTROL                    }, InputMode::HOLD, INC_POINTS_SIZE);
+    add_keyboard_action({GLFW_KEY_6, GLFW_KEY_LEFT_CONTROL                         }, InputMode::HOLD, DEC_POINTS_SIZE);
+    add_keyboard_action({GLFW_KEY_KP_SUBTRACT, GLFW_KEY_LEFT_CONTROL               }, InputMode::HOLD, DEC_POINTS_SIZE);
+    add_keyboard_action({GLFW_KEY_EQUAL, GLFW_KEY_LEFT_SHIFT                       }, InputMode::HOLD, INC_EDGES_SIZE);
+    add_keyboard_action({GLFW_KEY_KP_ADD                                           }, InputMode::HOLD, INC_EDGES_SIZE);
+    add_keyboard_action({GLFW_KEY_6                                                }, InputMode::HOLD, DEC_EDGES_SIZE);
+    add_keyboard_action({GLFW_KEY_KP_SUBTRACT                                      }, InputMode::HOLD, DEC_EDGES_SIZE);
+
+    add_keyboard_action({GLFW_KEY_PAGE_UP                          }, InputMode::HOLD, INC_LIGHT_ALL);
+    add_keyboard_action({GLFW_KEY_PAGE_DOWN                        }, InputMode::HOLD, DEC_LIGHT_ALL);
+    add_keyboard_action({GLFW_KEY_PAGE_UP,    GLFW_KEY_LEFT_SHIFT  }, InputMode::HOLD, INC_LIGHT_R);
+    add_keyboard_action({GLFW_KEY_PAGE_DOWN,  GLFW_KEY_LEFT_SHIFT  }, InputMode::HOLD, DEC_LIGHT_R);
+    add_keyboard_action({GLFW_KEY_PAGE_UP,    GLFW_KEY_LEFT_ALT    }, InputMode::HOLD, INC_LIGHT_G);
+    add_keyboard_action({GLFW_KEY_PAGE_DOWN,  GLFW_KEY_LEFT_ALT    }, InputMode::HOLD, DEC_LIGHT_G);
+    add_keyboard_action({GLFW_KEY_PAGE_UP,    GLFW_KEY_LEFT_CONTROL}, InputMode::HOLD, INC_LIGHT_B);
+    add_keyboard_action({GLFW_KEY_PAGE_DOWN,  GLFW_KEY_LEFT_CONTROL}, InputMode::HOLD, DEC_LIGHT_B);
+
+    add_keyboard_action({GLFW_KEY_R, GLFW_KEY_LEFT_ALT}, InputMode::RELEASE, RESET_CAMERA_AND_CP);
+
+    /*CAMERA*/
+    add_keyboard_action({GLFW_KEY_UP,   GLFW_KEY_LEFT_SHIFT}, InputMode::HOLD, FORWARD);
+    add_keyboard_action({GLFW_KEY_DOWN, GLFW_KEY_LEFT_SHIFT}, InputMode::HOLD, BACKWARDS);
+
+    add_keyboard_action({GLFW_KEY_UP   }, InputMode::HOLD, UP);
+    add_keyboard_action({GLFW_KEY_DOWN }, InputMode::HOLD, DOWN);
+    add_keyboard_action({GLFW_KEY_LEFT }, InputMode::HOLD, LEFT);
+    add_keyboard_action({GLFW_KEY_RIGHT}, InputMode::HOLD, RIGHT);
+
+    
+    add_keyboard_action({GLFW_KEY_SPACE}, InputMode::RELEASE, SWITCH_CAMERA_TYPE);
+    add_keyboard_action({GLFW_KEY_O    }, InputMode::RELEASE, SWITCH_CAMERA_MODE); 
+
+    add_keyboard_action({GLFW_KEY_A, GLFW_KEY_LEFT_ALT}, InputMode::RELEASE, SWITCH_CAMERA_CONSTRAINT_AXIS);
+
+    add_keyboard_action({GLFW_KEY_X                     }, InputMode::HOLD, INC_CAMERA_TRANSLATION_SPEED);
+    add_keyboard_action({GLFW_KEY_R                     }, InputMode::HOLD, INC_CAMERA_ROTATION_SPEED);
+    add_keyboard_action({GLFW_KEY_X, GLFW_KEY_LEFT_SHIFT}, InputMode::HOLD, DEC_CAMERA_TRANSLATION_SPEED);
+    add_keyboard_action({GLFW_KEY_R, GLFW_KEY_LEFT_SHIFT}, InputMode::HOLD, DEC_CAMERA_ROTATION_SPEED);
+
+    add_mouse_action({GLFW_MOUSE_BUTTON_LEFT }, InputMode::HOLD, ROTATE_CAMERA);
+    add_mouse_action({GLFW_MOUSE_BUTTON_RIGHT}, InputMode::HOLD, TRANSLATE_CAMERA);
+
+    add_keyboard_action({GLFW_MOUSE_BUTTON_RIGHT, GLFW_KEY_LEFT_SHIFT}, InputMode::HOLD, CHANGE_PIVOT_POINT);
+
+    /*CLIPPING PLANE*/
+    add_keyboard_action({GLFW_KEY_C, GLFW_KEY_LEFT_ALT}, InputMode::RELEASE, SWITCH_CLIPPING_PLANE_DISPLAY);
+    add_keyboard_action({GLFW_KEY_C                   }, InputMode::RELEASE, SWITCH_CLIPPING_PLANE_MODE);
+
+    add_keyboard_action({GLFW_KEY_A, GLFW_KEY_LEFT_CONTROL}, InputMode::RELEASE, SWITCH_CP_CONSTRAINT_AXIS);
+
+    add_keyboard_action({GLFW_KEY_X, GLFW_KEY_LEFT_CONTROL                     }, InputMode::HOLD, INC_CP_TRANSLATION_SPEED);
+    add_keyboard_action({GLFW_KEY_X, GLFW_KEY_LEFT_CONTROL, GLFW_KEY_LEFT_SHIFT}, InputMode::HOLD, DEC_CP_TRANSLATION_SPEED);
+    add_keyboard_action({GLFW_KEY_R, GLFW_KEY_LEFT_CONTROL                     }, InputMode::HOLD, INC_CP_ROTATION_SPEED);
+    add_keyboard_action({GLFW_KEY_R, GLFW_KEY_LEFT_CONTROL, GLFW_KEY_LEFT_SHIFT}, InputMode::HOLD, DEC_CP_ROTATION_SPEED);
+
+    add_mouse_action({GLFW_MOUSE_BUTTON_LEFT,   GLFW_KEY_LEFT_CONTROL}, InputMode::HOLD, ROTATE_CLIPPING_PLANE);
+    add_mouse_action({GLFW_MOUSE_BUTTON_RIGHT,  GLFW_KEY_LEFT_CONTROL}, InputMode::HOLD, TRANSLATE_CLIPPING_PLANE);
+    add_mouse_action({GLFW_MOUSE_BUTTON_MIDDLE, GLFW_KEY_LEFT_CONTROL}, InputMode::HOLD, TRANSLATE_CP_ALONG_CAMERA_DIRECTION);
+
+    add_keyboard_action({GLFW_KEY_R, GLFW_KEY_TAB}, InputMode::RELEASE, RESET_CLIPPING_PLANE);
+
+    /*ANIMATION*/
+    add_keyboard_action({GLFW_KEY_F1                               }, InputMode::RELEASE, RUN_OR_STOP_ANIMATION);
+    add_keyboard_action({GLFW_KEY_F1, GLFW_KEY_LEFT_ALT            }, InputMode::RELEASE, SAVE_KEY_FRAME);
+    add_keyboard_action({GLFW_KEY_F1, GLFW_KEY_D, GLFW_KEY_LEFT_ALT}, InputMode::RELEASE, CLEAR_ANIMATION);
+
+    /*===================== BIND DESCRIPTIONS ============================*/
+
+    set_action_description({
+      {"Animation", {
+        {get_binding_text_from_action(SAVE_KEY_FRAME),        "Add a key frame to animation (only available in orbiter)"},
+        {get_binding_text_from_action(CLEAR_ANIMATION),       "Delete animation (only available in orbiter)"},
+        {get_binding_text_from_action(RUN_OR_STOP_ANIMATION), "Start/Stop animation (only available in orbiter)"},
+      }},
+      {"Clipping plane", {
+        {get_binding_text_from_action(SWITCH_CLIPPING_PLANE_MODE),    "Switch clipping plane display mode"},
+        {get_binding_text_from_action(SWITCH_CLIPPING_PLANE_DISPLAY), "Toggle clipping plane rendering on/off"},
+        {get_binding_text_from_action(SWITCH_CP_CONSTRAINT_AXIS),     "Switch constraint axis for clipping plane rotation"},
+
+        {"", ""},
+
+        {get_binding_text_from_action(INC_CP_ROTATION_SPEED),    "Increase rotation speed"},
+        {get_binding_text_from_action(DEC_CP_ROTATION_SPEED),    "Decrease rotation speed"},
+        {get_binding_text_from_action(INC_CP_TRANSLATION_SPEED), "Increase translation speed"},
+        {get_binding_text_from_action(DEC_CP_TRANSLATION_SPEED), "Decrease translation speed"},
+
+        {"", ""},
+
+        {get_binding_text_from_action(ROTATE_CLIPPING_PLANE),               "Rotate the clipping plane when enabled"},
+        {get_binding_text_from_action(TRANSLATE_CLIPPING_PLANE),            "Translate the clipping plane when enabled"},
+        {get_binding_text_from_action(TRANSLATE_CP_ALONG_CAMERA_DIRECTION), "Translate the clipping plane along camera direction axis when enabled"},
+        {"[LCTRL+WHEEL]",                                                   "Translate the clipping plane along its normal when enabled"},
+
+        {"", ""},
+
+        {get_binding_text_from_action(RESET_CLIPPING_PLANE), "Reset clipping plane"},
+      }},
+      {"Camera", {
+        {get_binding_text_from_action(FORWARD),                      "Move camera forward"},
+        {get_binding_text_from_action(BACKWARDS),                    "Move camera backwards"},
+        {get_binding_text_from_action(UP),                           "Move camera up"},
+        {get_binding_text_from_action(DOWN),                         "Move camera down"},
+        {get_binding_text_from_action(RIGHT),                        "Move camera right"},
+        {get_binding_text_from_action(LEFT),                         "Move camera left"},
+        {"",                                                         ""},
+        {get_binding_text_from_action(SWITCH_CAMERA_MODE),           "Switch to Perspective/Orthographic view"},
+        {get_binding_text_from_action(SWITCH_CAMERA_TYPE),           "Switch to Orbiter/Free-fly camera type"},
+        {get_binding_text_from_action(SWITCH_CAMERA_CONSTRAINT_AXIS),"Switch constraint axis for camera rotation"},
+        {"",                                                         ""},
+        {get_binding_text_from_action(ROTATE_CAMERA),                "Rotate the camera"},
+        {get_binding_text_from_action(TRANSLATE_CAMERA),             "Translate the camera"},
+        {get_binding_text_from_action(RESET_CAMERA_AND_CP),                    "Reset camera"},
+        {"",                                                         ""},
+        {get_binding_text_from_action(INC_CAMERA_ROTATION_SPEED),    "Increase rotation speed"},
+        {get_binding_text_from_action(DEC_CAMERA_ROTATION_SPEED),    "Decrease rotation speed"},
+        {get_binding_text_from_action(INC_CAMERA_TRANSLATION_SPEED), "Increase translation speed"},
+        {get_binding_text_from_action(DEC_CAMERA_TRANSLATION_SPEED), "Decrease translation speed"},
+        {"",                                                         ""},
+        {"[WHEEL]",                                                  "Zoom in/out"},
+        {"[LEFT_DOUBLE_CLICK]",                                      "Aligns camera to nearest axis"},
+        {"[LSHIFT+LEFT_DOUBLE_CLICK]",                               "Aligns camera to clipping plane"},
+        {"[LCTRL+LEFT_DOUBLE_CLICK]",                                "Aligns clipping plane to camera"},
+        {"[RIGHT_DOUBLE_CLICK]",                                     "Center the camera to the object"},
+        {"[LCTRL+RIGHT_DOUBLE_CLICK]",                               "Reset camera position & orientation"},
+        {get_binding_text_from_action(CHANGE_PIVOT_POINT),           "Change pivot point (center of the scene)"},
+        {"[Z+WHEEL]",                                                "Increase/Decrease FOV"},
+      }},
+      {"Scene", {
+        {get_binding_text_from_action(INC_LIGHT_ALL),         "Increase light (all colors, use shift/alt/ctrl for one rgb component)"},
+        {get_binding_text_from_action(DEC_LIGHT_ALL),         "Decrease light (all colors, use shift/alt/ctrl for one rgb component)"},
+        {"",                                                  ""},
+        {get_binding_text_from_action(FACE_NORMALS_DISPLAY),  "Toggle face/vertex normals for normal display"},
+        {get_binding_text_from_action(NORMALS_DISPLAY),       "Toggle normals display"},
+        {get_binding_text_from_action(TRIANGLES_DISPLAY),     "Toggle triangles display"},
+        {get_binding_text_from_action(VERTICES_DISPLAY),      "Toggle vertices display"},
+        {get_binding_text_from_action(SPHERE_VERTEX_DISPLAY), "Toggle vertices display as sphere"},
+        {get_binding_text_from_action(EDGES_DISPLAY),         "Toggle edges display"},
+        {get_binding_text_from_action(CYLINDER_EDGE_DISPLAY), "Toggle edges display as cylinder"},
+        {get_binding_text_from_action(FACES_DISPLAY),         "Toggle faces display"},
+        {"",                                                  ""},
+        {get_binding_text_from_action(WORLD_AXIS_DISPLAY),    "Toggle world axis display"},
+        {get_binding_text_from_action(XY_GRID_DISPLAY),       "Toggle XY grid display"},
+        {"",                                                  ""},
+        {get_binding_text_from_action(INC_POINTS_SIZE),       "Increase size of vertices"},
+        {get_binding_text_from_action(DEC_POINTS_SIZE),       "Decrease size of vertices"},
+        {get_binding_text_from_action(INC_EDGES_SIZE),        "Increase size of edges"},
+        {get_binding_text_from_action(DEC_EDGES_SIZE),        "Decrease size of edges"},
+        {"",                                                  ""},
+        {get_binding_text_from_action(MONO_COLOR),            "Toggle mono color"},
+        {get_binding_text_from_action(NORMALS_MONO_COLOR),    "Toggle normals mono color"},
+        {get_binding_text_from_action(INVERSE_NORMAL),        "Invert direction of normals"},
+        {get_binding_text_from_action(SHADING_MODE),          "Switch between flat/Gouraud shading display"},
+        {"",                                                  ""},
+        {"[MIDDLE_DOUBLE_CLICK]",                             "Show entire scene"},
+      }},         
+      {"Window", {
+        {get_binding_text_from_action(FULLSCREEN), "Switch to windowed/fullscreen mode"},
+        {get_binding_text_from_action(SCREENSHOT), "Take a screenshot of the current view"},
+      }},
+      {"Application", {
+        {get_binding_text_from_action(EXIT),                    "Exit program"},
+        {"",                                                    ""},
+        {get_binding_text_from_action(PRINT_APPLICATION_STATE), "Activate/Deactivate application state refreshing (FPS...)"},
+      }},
+    });
+
+    print_help();
+  }
+} // end namespace GLFW 
+} // end namespace CGAL
+
+#endif // CGAL_BASIC_VIEWER_GLFW_IMPL_H
\ No newline at end of file
diff --git a/Basic_viewer/include/CGAL/GLFW/bv_settings.h b/Basic_viewer/include/CGAL/GLFW/bv_settings.h
new file mode 100644
index 000000000000..45d526bccc73
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/bv_settings.h
@@ -0,0 +1,116 @@
+#pragma once
+
+/*************GLFW WINDOW PARAMS*************/
+
+#ifndef CGAL_WINDOW_WIDTH_INIT
+#define CGAL_WINDOW_WIDTH_INIT 500
+#endif
+
+#ifndef CGAL_WINDOW_HEIGHT_INIT
+#define CGAL_WINDOW_HEIGHT_INIT 450
+#endif
+
+#ifndef CGAL_WINDOW_SAMPLES
+#define CGAL_WINDOW_SAMPLES 1
+#endif
+
+/*************GLFW SCENE PARAMS*************/
+#ifndef CGAL_SIZE_VERTICES
+#define CGAL_SIZE_VERTICES 7.0f
+#endif
+
+#ifndef CGAL_SIZE_EDGES
+#define CGAL_SIZE_EDGES 1.1f
+#endif
+
+#ifndef CGAL_SIZE_RAYS
+#define CGAL_SIZE_RAYS 3.1f
+#endif
+
+#ifndef CGAL_SIZE_LINES
+#define CGAL_SIZE_LINES 3.1f
+#endif
+
+#ifndef CGAL_SIZE_NORMALS
+#define CGAL_SIZE_NORMALS 0.2f
+#endif 
+
+#ifndef CGAL_NORMAL_HEIGHT_FACTOR
+#define CGAL_NORMAL_HEIGHT_FACTOR 0.02f
+#endif
+
+#ifndef CGAL_NORMALS_MONO_COLOR
+#define CGAL_NORMALS_MONO_COLOR { 220, 20, 20 }
+#endif
+
+#ifndef CGAL_LIGHT_POSITION
+#define CGAL_LIGHT_POSITION { 0.0f, 0.0f, 0.0f, 0.0f }
+#endif
+
+#ifndef CGAL_AMBIENT_COLOR
+#define CGAL_AMBIENT_COLOR { 0.6f, 0.5f, 0.5f, 0.5f }
+#endif
+
+#ifndef CGAL_DIFFUSE_COLOR
+#define CGAL_DIFFUSE_COLOR { 0.9f, 0.9f, 0.9f, 0.9f }
+#endif
+
+#ifndef CGAL_SPECULAR_COLOR
+#define CGAL_SPECULAR_COLOR { 0.0f, 0.0f, 0.0f, 1.0f }
+#endif
+
+#ifndef CGAL_SHININESS
+#define CGAL_SHININESS 1.0f
+#endif
+
+/************GLFW CAMERA PARAMS*************/
+#ifndef CGAL_CAMERA_TRANSLATION_SPEED
+#define CGAL_CAMERA_TRANSLATION_SPEED 1.f
+#endif
+
+#ifndef CGAL_CAMERA_ROTATION_SPEED
+#define CGAL_CAMERA_ROTATION_SPEED 270.f
+#endif
+
+#ifndef CGAL_CAMERA_RADIUS
+#define CGAL_CAMERA_RADIUS 5.f
+#endif
+
+#ifndef CGAL_CAMERA_FOV
+#define CGAL_CAMERA_FOV 45.f
+#endif
+
+#ifndef CGAL_CAMERA_TRANSLATION_SMOOTHNESS
+#define CGAL_CAMERA_TRANSLATION_SMOOTHNESS 0.25f
+#endif
+
+#ifndef CGAL_CAMERA_ROTATION_SMOOTHNESS
+#define CGAL_CAMERA_ROTATION_SMOOTHNESS 0.25f
+#endif
+
+#ifndef CGAL_CAMERA_ZOOM_SMOOTHNESS
+#define CGAL_CAMERA_ZOOM_SMOOTHNESS 0.1f
+#endif
+
+/*********GLFW CLIPPING PLANE PARAMS********/
+#ifndef CGAL_CLIPPING_PLANE_RENDERING_TRANSPARENCY
+#define CGAL_CLIPPING_PLANE_RENDERING_TRANSPARENCY 0.5f
+#endif
+
+#ifndef CGAL_CLIPPING_PLANE_TRANSLATION_SPEED
+#define CGAL_CLIPPING_PLANE_TRANSLATION_SPEED 1.f
+#endif
+
+#ifndef CGAL_CLIPPING_PLANE_ROTATION_SPEED
+#define CGAL_CLIPPING_PLANE_ROTATION_SPEED 270.f
+#endif
+
+#ifndef CGAL_CLIPPING_PLANE_TRANSLATION_SMOOTHNESS
+#define CGAL_CLIPPING_PLANE_TRANSLATION_SMOOTHNESS 1.f
+#endif
+
+#ifndef CGAL_CLIPPING_PLANE_ROTATION_SMOOTHNESS
+#define CGAL_CLIPPING_PLANE_ROTATION_SMOOTHNESS 0.35f
+#endif
+
+/***********GLFW ANIMATION PARAMS***********/
diff --git a/Basic_viewer/include/CGAL/GLFW/internal/Animation_controller.h b/Basic_viewer/include/CGAL/GLFW/internal/Animation_controller.h
new file mode 100644
index 000000000000..de1ced751bd0
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/internal/Animation_controller.h
@@ -0,0 +1,165 @@
+#ifndef CGAL_ANIMATION_CONTROLLER_H
+#define CGAL_ANIMATION_CONTROLLER_H
+
+#include <vector>
+#include <chrono>
+
+#include "utils.h"
+
+using namespace std::chrono_literals;
+
+struct AnimationKeyFrame 
+{
+  vec3f position;
+  quatf orientation;
+
+  AnimationKeyFrame(const vec3f& _position, const quatf& _orientation) : 
+    position(_position), 
+    orientation(_orientation) 
+  {
+  }
+
+  AnimationKeyFrame() : 
+    position(vec3f::Identity()), 
+    orientation(quatf::Identity()) 
+  {
+  }
+};
+
+class Animation_controller 
+{
+public:
+  using DurationType = std::chrono::milliseconds;
+  using TimePoint = std::chrono::_V2::steady_clock::time_point;
+  using KeyFrameBuffer = std::vector<AnimationKeyFrame>;
+  
+public:
+  void start();
+  AnimationKeyFrame run();
+  void stop(const float frameNumber);
+
+  void add_key_frame(const vec3f& position, const quatf& orientation);
+
+  void set_duration(DurationType duration);
+
+  inline bool is_running() const { return m_IsRunning; }
+
+  inline void clear_buffer() { m_KeyFrames.clear(); }
+
+  inline quatf get_rotation() const { return m_InterpolatedRotation; }
+
+  inline vec3f get_translation() const { return m_InterpolatedTranslation; }
+
+  inline float get_frame() const { return m_CurrentFrameNumber; }
+
+  inline size_t number_of_key_frames() const { return m_KeyFrames.size(); }
+  
+private:
+  AnimationKeyFrame key_frame_interpolation(const float time);
+
+  void compute_timestamp();
+
+private: 
+  quatf m_InterpolatedRotation { quatf::Identity() };
+  vec3f m_InterpolatedTranslation { vec3f::Zero() };
+
+  DurationType m_Duration { 5s };   
+
+  KeyFrameBuffer m_KeyFrames {};
+
+  TimePoint m_StartTime {}; 
+
+  AnimationKeyFrame m_LastFrameData {};
+
+  float m_LastFrameNumber    { 0.0f };   
+  float m_CurrentFrameNumber { 0.0f };  
+  float m_Timestamp          { 0.0f };  
+
+  bool m_IsRunning { false };
+};
+
+/********************METHOD IMPLEMENTATIONS********************/
+
+void Animation_controller::start() 
+{
+  if (m_KeyFrames.size() <= 1) 
+  {
+    return;
+  }
+
+  if (!m_IsRunning) 
+  {
+    m_StartTime = std::chrono::steady_clock::now();
+    m_IsRunning = true;
+  }
+}
+
+AnimationKeyFrame Animation_controller::run() 
+{
+  auto now = std::chrono::steady_clock::now();
+  float elapsedTime = static_cast<float>(std::chrono::duration_cast<std::chrono::milliseconds>(now - m_StartTime).count());
+  m_CurrentFrameNumber = m_LastFrameNumber + elapsedTime;
+  if (m_CurrentFrameNumber >= static_cast<float>(m_Duration.count())) 
+  {
+    m_CurrentFrameNumber = 0.0;
+    stop(0.0);
+    return m_LastFrameData;
+  }
+
+  m_LastFrameData = key_frame_interpolation(m_CurrentFrameNumber); 
+  return m_LastFrameData;
+}
+
+void Animation_controller::stop(const float frameNumber) 
+{
+  m_IsRunning = false;
+  m_LastFrameNumber = frameNumber;
+}
+
+void Animation_controller::add_key_frame(const vec3f& position, const quatf& orientation) 
+{ 
+  AnimationKeyFrame keyFrame(position, orientation);
+  m_KeyFrames.push_back(keyFrame);
+  if (m_KeyFrames.size() > 1) 
+  {
+    compute_timestamp();
+  } 
+}
+
+void Animation_controller::set_duration(DurationType duration) 
+{ 
+  m_Duration = duration; 
+  if (m_KeyFrames.size() > 1) 
+  {
+    compute_timestamp();
+  }
+}
+
+AnimationKeyFrame Animation_controller::key_frame_interpolation(const float time)
+{
+  assert(!utils::equal_float(m_Timestamp, 0));
+
+  float t = time / m_Timestamp;
+
+  unsigned int lowerIndex = std::floor(t);
+  unsigned int upperIndex = std::ceil(t);
+
+  AnimationKeyFrame keyFrame0 = m_KeyFrames.at(lowerIndex); 
+  AnimationKeyFrame keyFrame1 = m_KeyFrames.at(upperIndex);
+
+  t -= static_cast<float>(lowerIndex); 
+
+  m_InterpolatedRotation = keyFrame0.orientation.slerp(t, keyFrame1.orientation); 
+
+  m_InterpolatedTranslation = utils::lerp(keyFrame0.position, keyFrame1.position, t);
+
+  return {m_InterpolatedTranslation, m_InterpolatedRotation};
+}
+
+void Animation_controller::compute_timestamp() 
+{ 
+  assert(m_KeyFrames.size() > 1);
+  m_Timestamp = static_cast<float>(m_Duration.count()) / static_cast<float>(m_KeyFrames.size() - 1); 
+}
+
+#endif // CGAL_ANIMATION_CONTROLLER_H
diff --git a/Basic_viewer/include/CGAL/GLFW/internal/Camera.h b/Basic_viewer/include/CGAL/GLFW/internal/Camera.h
new file mode 100644
index 000000000000..51e1b10ba85e
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/internal/Camera.h
@@ -0,0 +1,709 @@
+#ifndef CGAL_CAMERA_H
+#define CGAL_CAMERA_H
+
+#include <vector>
+
+#include "utils.h"
+#include "../bv_settings.h"
+
+class Camera
+{
+public:
+  enum class ConstraintAxis { NO_CONSTRAINT, RIGHT_AXIS, UP_AXIS, FORWARD_AXIS };
+  enum class CameraMode { PERSPECTIVE, ORTHOGRAPHIC };
+  enum class CameraType { ORBITER, FREE_FLY };
+
+public:
+  void update(const float deltaTime);
+
+  void lookat(vec3f const &center, const float size);
+  void lookat(vec3f const &pmin, vec3f const &pmax);
+
+  void move(const float z);
+  void rotation(const float x, const float y);
+  void translation(const float x, const float y);
+
+  void move_up(const float deltaTime);
+  void move_down(const float deltaTime);
+  void move_right(const float deltaTime);
+  void move_left(const float deltaTime);
+
+  mat4f view() const;
+
+  mat4f projection() const;
+  mat4f projection(const float width, const float height);
+
+  float znear() const;
+  float zfar() const;
+
+  mat4f viewport() const;
+
+  void set_position(const vec3f& position);
+  vec3f get_position() const;
+
+  vec3f get_forward() const;
+  vec3f get_right() const;
+  vec3f get_up() const;
+
+  void reset_all();
+  void reset_position();
+  void reset_orientation();
+  void reset_size();
+
+  void toggle_type(); 
+
+  void switch_constraint_axis();
+  void set_constraint_axis(ConstraintAxis axis);
+
+  void increase_fov(float d);
+  void disable_smoothness();
+  void increase_zoom_smoothness(const float deltaTime);
+
+  void align_to_plane(const vec3f& normal);
+  void align_to_nearest_axis();
+
+  std::string get_constraint_axis_str() const;
+
+  bool need_update() const;
+  
+  inline float get_translation_speed() const { return m_TranslationSpeed; }
+  inline float get_rotation_speed() const { return m_RotationSpeed; }
+
+  inline float get_size() const { return m_Size; }
+  inline float get_radius() const { return m_Radius; }
+  inline vec3f get_center() const { return m_Center; }
+
+  inline float get_fov() const { return m_FOV; }
+
+  inline quatf get_orientation() const { return m_Orientation; }
+
+  inline void set_default_size(float size) { m_DefaultSize = size; }
+  inline void set_default_position(const vec3f& position) { m_DefaultPosition = position; set_default_size(position.z()); }
+  inline void set_default_orientation(const quatf& orientation) { m_DefaultOrientation = orientation; }
+
+  inline void set_size(float size) { m_Size = size; m_TargetSize = size; }
+  inline void set_radius(float radius) { m_Radius = radius; }
+  inline void set_center(const vec3f& center) { m_Center = center; }
+
+  inline void set_orthographic() { m_Mode = CameraMode::ORTHOGRAPHIC; }
+  inline void set_mode(CameraMode mode) { m_Mode = mode; }
+  inline void set_orientation(const quatf& orientation) { m_Orientation = orientation; }
+  
+  void set_orientation(const vec3f& forward, float upAngle);
+
+  inline void toggle_mode() { m_Mode = (m_Mode == CameraMode::ORTHOGRAPHIC) ? CameraMode::PERSPECTIVE : CameraMode::ORTHOGRAPHIC; }
+  inline bool is_orthographic() const { return m_Mode == CameraMode::ORTHOGRAPHIC; }
+  inline bool is_orbiter() const { return m_Type == CameraType::ORBITER; }
+
+  inline void increase_rotation_speed(const float deltaTime) { m_RotationSpeed = std::min(m_RotationSpeed+100.f*deltaTime, 360.f); }
+  inline void decrease_rotation_speed(const float deltaTime) { m_RotationSpeed = std::max(m_RotationSpeed-100.f*deltaTime, 60.f); }
+
+  inline void increase_translation_speed(const float deltaTime) { m_TranslationSpeed = std::min(m_TranslationSpeed+deltaTime, 20.f); }
+  inline void decrease_translation_speed(const float deltaTime) { m_TranslationSpeed = std::max(m_TranslationSpeed-deltaTime, 0.5f); }
+
+  inline void increase_rotation_smoothness(const float deltaTime) { m_RotationSmoothFactor = std::max(m_RotationSmoothFactor-deltaTime, 0.01f); }
+  inline void decrease_rotation_smoothness(const float deltaTime) { m_RotationSmoothFactor = std::min(m_RotationSmoothFactor+deltaTime, 1.f); }
+
+  inline void increase_translation_smoothness(const float deltaTime) { m_TranslationSmoothFactor = std::max(m_TranslationSmoothFactor-deltaTime, 0.01f); }
+  inline void decrease_translation_smoothness(const float deltaTime) { m_TranslationSmoothFactor = std::min(m_TranslationSmoothFactor+deltaTime, 1.f); }
+
+private: 
+  void compute_target_size();
+
+private:
+  quatf m_Orientation       { quatf::Identity() }; 
+  quatf m_DefaultOrientation  { quatf::Identity() };
+
+  vec3f m_Center { vec3f::Zero() };   
+
+  vec3f m_Position       { vec3f::Zero() }; 
+  vec3f m_TargetPosition { vec3f::Zero() };
+  vec3f m_DefaultPosition  { vec3f::Zero() }; 
+
+  float m_Size       { CGAL_CAMERA_RADIUS };
+  float m_DefaultSize  { CGAL_CAMERA_RADIUS };
+  float m_TargetSize { CGAL_CAMERA_RADIUS };
+  float m_Radius     { CGAL_CAMERA_RADIUS };
+
+  float m_Width     { 1.0f };  
+  float m_Height    { 1.0f }; 
+  float m_FOV       { CGAL_CAMERA_FOV };    
+  
+  float m_RotationSpeed    { CGAL_CAMERA_ROTATION_SPEED }; 
+  float m_TranslationSpeed { CGAL_CAMERA_TRANSLATION_SPEED }; 
+
+  CameraType m_Type { CameraType::ORBITER };
+  CameraMode m_Mode { CameraMode::PERSPECTIVE };
+
+  ConstraintAxis m_ConstraintAxis { ConstraintAxis::NO_CONSTRAINT };
+
+  float m_Pitch       { 0.0f }; 
+  float m_TargetPitch { 0.0f }; 
+  float m_Yaw         { 0.0f };
+  float m_TargetYaw   { 0.0f }; 
+  
+  float m_ZoomSmoothFactor        { CGAL_CAMERA_ZOOM_SMOOTHNESS };
+  float m_RotationSmoothFactor    { CGAL_CAMERA_ROTATION_SMOOTHNESS };
+  float m_TranslationSmoothFactor { CGAL_CAMERA_TRANSLATION_SMOOTHNESS };
+};
+
+/********************METHOD IMPLEMENTATIONS********************/
+
+void Camera::update(const float dt) 
+{
+  if (need_update())
+  {
+    if (m_Type == CameraType::FREE_FLY) 
+    {
+      if (m_TargetPitch > 90.f) 
+      {
+          m_TargetPitch = 90.f;
+      }
+      else if (m_TargetPitch < -90.f) 
+      {
+          m_TargetPitch = -90.f;
+      }
+    }
+
+    float smoothPitch = m_Pitch + m_RotationSmoothFactor * (m_TargetPitch - m_Pitch);   
+    float smoothYaw = m_Yaw + m_RotationSmoothFactor * (m_TargetYaw - m_Yaw);   
+
+    float pitchDelta = utils::radians((smoothPitch - m_Pitch) * m_RotationSpeed) * dt;
+    float yawDelta = utils::radians((smoothYaw - m_Yaw) * m_RotationSpeed) * dt;
+
+    if (is_orbiter()) 
+    {
+      if (m_ConstraintAxis == ConstraintAxis::FORWARD_AXIS)
+      {
+        quatf rollQuaternion(Eigen::AngleAxisf(pitchDelta - yawDelta, -vec3f::UnitZ()));
+        m_Orientation = rollQuaternion * m_Orientation;
+      }
+      else 
+      {
+        quatf pitchQuaternion(Eigen::AngleAxisf(pitchDelta, vec3f::UnitX()));
+        quatf yawQuaternion(Eigen::AngleAxisf(yawDelta, vec3f::UnitY()));
+        m_Orientation = pitchQuaternion * yawQuaternion * m_Orientation;
+      }
+    }
+    else // free fly
+    {
+      quatf pitchQuaternion(Eigen::AngleAxisf(pitchDelta, get_right()));
+      quatf yawQuaternion(Eigen::AngleAxisf(yawDelta, vec3f::UnitY())); // lock roll rotation 
+      m_Orientation = m_Orientation * pitchQuaternion * yawQuaternion;
+    }
+    m_Pitch = smoothPitch;
+    m_Yaw = smoothYaw;
+
+    m_Position += m_TranslationSmoothFactor * (m_TargetPosition - m_Position);
+
+    m_Size += m_ZoomSmoothFactor * (m_TargetSize - m_Size);
+  }
+}
+
+void Camera::lookat(vec3f const &center, const float size)
+{
+  m_Center = center;   // camera focus
+  m_Size = size;
+  m_DefaultSize = size; // allowing reset
+  m_Radius = size;
+
+  compute_target_size();
+
+  m_Orientation = quatf::Identity();
+}
+
+void Camera::lookat(vec3f const &pmin, vec3f const &pmax)
+{
+  lookat(utils::center(pmin, pmax), utils::distance(pmin, pmax));
+}
+
+void Camera::move(const float z)
+{
+  if (is_orbiter()) 
+  {
+    m_TargetSize -= m_TargetSize * z;
+    if (m_TargetSize < 0.001f)
+        m_TargetSize = 0.001f;
+  }
+  else // free fly 
+  {
+    vec3f forward = get_forward();
+    m_TargetPosition += forward * m_Size * z * m_TranslationSpeed;
+  }
+}
+
+void Camera::rotation(const float x, const float y)
+{
+  if (
+    m_ConstraintAxis == ConstraintAxis::NO_CONSTRAINT ||
+    m_ConstraintAxis == ConstraintAxis::RIGHT_AXIS    ||
+    m_ConstraintAxis == ConstraintAxis::FORWARD_AXIS) 
+  {
+    m_TargetPitch += y + y / m_RotationSmoothFactor * .1;
+  }
+  
+  if (
+    m_ConstraintAxis == ConstraintAxis::NO_CONSTRAINT ||
+    m_ConstraintAxis == ConstraintAxis::UP_AXIS       ||
+    m_ConstraintAxis == ConstraintAxis::FORWARD_AXIS)
+  {
+    m_TargetYaw += x + x / m_RotationSmoothFactor * .1;
+  }
+}
+
+void Camera::translation(const float x, const float y)
+{
+  float xspeed = x * m_TranslationSpeed + x / m_TranslationSmoothFactor * .01;
+  float yspeed = y * m_TranslationSpeed + y / m_TranslationSmoothFactor * .01;
+
+  if (is_orbiter()) 
+  {
+    m_TargetPosition.x() += m_Size * xspeed;
+    m_TargetPosition.y() += m_Size * yspeed;
+  } 
+  else // free fly  
+  {
+    vec3f right = get_right();
+    vec3f up = get_up();
+    m_TargetPosition -= right * m_Size * xspeed; 
+    m_TargetPosition -= up * m_Size * yspeed; 
+  }
+}
+
+void Camera::move_up(const float dt)
+{
+  if (is_orbiter()) 
+  {
+    m_TargetPosition.y() += m_Size * dt * m_TranslationSpeed;
+  }
+  else // free fly
+  {
+    vec3f up = get_up();
+    m_TargetPosition += up * m_Size * dt * m_TranslationSpeed;
+  }
+}
+
+void Camera::move_down(const float dt)
+{
+  move_up(-dt);
+}
+
+void Camera::move_right(const float dt)
+{
+  if (is_orbiter()) 
+  {
+    m_TargetPosition.x() += m_Size * dt * m_TranslationSpeed;
+  }
+  else // free fly
+  {
+    vec3f right = get_right();
+    m_TargetPosition += right * m_Size * dt * m_TranslationSpeed;
+  }
+}
+
+void Camera::move_left(const float dt)
+{
+  move_right(-dt);
+}
+
+mat4f Camera::view() const
+{
+  mat4f rotation = transform::rotation(m_Orientation);
+
+  if (is_orbiter()) 
+  {
+    mat4f translation = transform::translation(-m_Position.x(), -m_Position.y(), -m_Size); 
+    mat4f model = transform::translation(-m_Center.x(), -m_Center.y(), -m_Center.z()); 
+    return translation * rotation * model;
+  } 
+  else // free fly  
+  {
+    mat4f translation = transform::translation(-m_Position.x(), -m_Position.y(), -m_Position.z()-m_Size); // translate camera to (0,0,0)
+    return rotation * translation;
+  }
+}
+
+mat4f Camera::projection(const float width, const float height)
+{
+  m_Width = width;
+  m_Height = height;
+
+  return projection();
+}
+
+mat4f Camera::projection() const
+{ 
+  if (m_Mode == CameraMode::ORTHOGRAPHIC) {
+    float aspect = m_Width / m_Height;
+    float halfWidth = m_Size * aspect * 0.5f;
+    float halfHeight = m_Size * 0.5f;
+    return utils::ortho(-halfWidth, halfWidth, -halfHeight, halfHeight, znear(), zfar());
+  }
+
+  return utils::perspective(utils::radians(m_FOV), m_Width / m_Height, znear(), zfar());
+}
+
+float Camera::znear() const
+{
+  float d;
+  if (is_orbiter()) 
+  {
+    d = utils::distance(m_Center, vec3f(m_Position.x(), m_Position.y(), m_Size));
+  }
+  else
+  {
+    d = utils::distance(m_Center, vec3f(m_Position.x(), m_Position.y(), m_Position.z()+m_Size));
+  }
+  return std::max(0.1f, d - 2 * m_Radius);
+}
+
+float Camera::zfar() const
+{
+  float d;
+  if (is_orbiter()) 
+  {
+    d = utils::distance(m_Center, vec3f(m_Position.x(), m_Position.y(), m_Size));
+  }
+  else // free fly 
+  {
+    d = utils::distance(m_Center, vec3f(m_Position.x(), m_Position.y(), m_Position.z()+m_Size));
+  }
+
+  return std::max(100.f, d + 2 * m_Radius);
+}
+
+mat4f Camera::viewport() const
+{
+  return transform::viewport(m_Width, m_Height);
+}
+
+void Camera::set_position(const vec3f& position) 
+{ 
+  m_Position = position; 
+  m_TargetPosition = position; 
+  m_Size = position.z();
+  m_TargetSize = position.z();
+}
+
+vec3f Camera::get_position() const
+{
+  if (is_orbiter()) 
+  {
+    return vec3f(m_Position.x(), m_Position.y(), m_Size);
+  }
+  else // free fly
+  {
+    return vec3f(m_Position.x(), m_Position.y(), m_Position.z() + m_Size);
+  } 
+}
+
+vec3f Camera::get_forward() const
+{
+  return (m_Orientation.inverse() * -vec3f::UnitZ()).normalized();
+}
+
+vec3f Camera::get_right() const
+{
+  return (m_Orientation.inverse() * vec3f::UnitX()).normalized();
+}
+
+vec3f Camera::get_up() const
+{
+  return (m_Orientation.inverse() * vec3f::UnitY()).normalized();
+}
+
+void Camera::reset_all()
+{
+  reset_position();
+  reset_orientation();
+  m_FOV                     = CGAL_CAMERA_FOV;
+  m_ZoomSmoothFactor        = CGAL_CAMERA_ZOOM_SMOOTHNESS;
+  m_RotationSmoothFactor    = CGAL_CAMERA_ROTATION_SMOOTHNESS;
+  m_TranslationSmoothFactor = CGAL_CAMERA_TRANSLATION_SMOOTHNESS;
+  m_TranslationSpeed        = CGAL_CAMERA_TRANSLATION_SPEED;
+  m_RotationSpeed           = CGAL_CAMERA_ROTATION_SPEED;
+  reset_size();
+}
+
+void Camera::reset_size()
+{
+  m_Size = m_DefaultSize;
+  compute_target_size();
+}
+
+void Camera::reset_position()
+{
+  m_Position = m_DefaultPosition;
+  m_TargetPosition = m_DefaultPosition; 
+}
+
+void Camera::reset_orientation() 
+{ 
+  m_Pitch = 0.f; 
+  m_Yaw = 0; 
+  m_TargetPitch = 0.f; 
+  m_TargetYaw = 0; 
+  m_Orientation = m_DefaultOrientation; 
+}
+
+void Camera::toggle_type() 
+{ 
+  m_Type = (m_Type == CameraType::ORBITER) ? CameraType::FREE_FLY : CameraType::ORBITER;  
+  reset_all(); 
+}
+
+void Camera::switch_constraint_axis() 
+{
+  if (!is_orbiter() && m_ConstraintAxis == ConstraintAxis::UP_AXIS)
+  {
+    m_ConstraintAxis = ConstraintAxis::NO_CONSTRAINT;
+    return;
+  }
+
+  switch(m_ConstraintAxis)
+  {
+    case ConstraintAxis::NO_CONSTRAINT: 
+      m_ConstraintAxis = ConstraintAxis::RIGHT_AXIS;
+      break;
+    case ConstraintAxis::RIGHT_AXIS: 
+      m_ConstraintAxis = ConstraintAxis::UP_AXIS;
+      break;
+    case ConstraintAxis::UP_AXIS: 
+      m_ConstraintAxis = ConstraintAxis::FORWARD_AXIS;
+      break;
+    case ConstraintAxis::FORWARD_AXIS: 
+      m_ConstraintAxis = ConstraintAxis::NO_CONSTRAINT;
+      break;
+  }
+}
+
+void Camera::set_constraint_axis(ConstraintAxis axis)
+{
+  m_ConstraintAxis = axis;
+}
+
+void Camera::increase_fov(const float d) 
+{ 
+  m_FOV += d * 2.f; 
+  if (m_FOV > 90.f) m_FOV = 90.;
+  if (m_FOV < 45.f) m_FOV = 45.f;
+
+  compute_target_size();
+}
+
+void Camera::disable_smoothness()
+{
+  m_ZoomSmoothFactor = 1.0;
+  m_TranslationSmoothFactor = 1.0;
+  m_RotationSmoothFactor = 1.0;
+}
+
+void Camera::increase_zoom_smoothness(const float s)
+{
+  m_ZoomSmoothFactor += s * 0.01; 
+  if (m_ZoomSmoothFactor > 1.f) m_ZoomSmoothFactor = 1.;
+  if (m_ZoomSmoothFactor < 0.01f) m_ZoomSmoothFactor = .01;
+}
+
+using NearestAxisResult = std::pair<vec3f, vec3f>;
+
+NearestAxisResult nearest_axis(const vec3f& forward, const vec3f& up) 
+{
+  std::vector<vec3f> axis = {
+    vec3f::UnitX(), -vec3f::UnitX(),
+    vec3f::UnitY(), -vec3f::UnitY(),
+    vec3f::UnitZ(), -vec3f::UnitZ()
+  };
+
+  float maxForwardDot = -1.0f;
+  float maxUpDot = -1.0f;
+  vec3f nearestForwardAxis = vec3f::Zero();
+  vec3f nearestUpAxis = vec3f::Zero();
+
+  for (const auto& a : axis) 
+  {
+    float dotFw = -forward.dot(a);
+    float dotUp = up.dot(a);
+    if (dotFw > maxForwardDot) 
+    {
+      maxForwardDot = dotFw;
+      nearestForwardAxis = a; 
+    }
+
+    if (dotUp > maxUpDot) 
+    {
+      maxUpDot = dotUp;
+      nearestUpAxis = a; 
+    }
+  }
+
+  return { nearestForwardAxis, nearestUpAxis };
+}
+
+quatf compute_rotation(const vec3f& nearestForwardAxis, const vec3f& nearestUpAxis) 
+{
+  quatf rotation{};
+  if (nearestForwardAxis == vec3f::UnitX()) 
+  {
+    rotation = quatf(Eigen::AngleAxisf(-M_PI_2, vec3f::UnitY()));
+    if (nearestUpAxis == -vec3f::UnitY()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(M_PI, nearestForwardAxis));
+    }
+    else if (nearestUpAxis == vec3f::UnitZ()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(-M_PI_2, nearestForwardAxis));
+    }
+    else if (nearestUpAxis == -vec3f::UnitZ()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(M_PI_2, nearestForwardAxis));
+    }
+  } 
+  else if (nearestForwardAxis == -vec3f::UnitX()) 
+  {
+    rotation = quatf(Eigen::AngleAxisf(M_PI_2, vec3f::UnitY()));
+    if (nearestUpAxis == -vec3f::UnitY()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(M_PI, nearestForwardAxis));
+    }
+    else if (nearestUpAxis == vec3f::UnitZ()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(M_PI_2, nearestForwardAxis));
+    }
+    else if (nearestUpAxis == -vec3f::UnitZ()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(-M_PI_2, nearestForwardAxis));
+    }
+  } 
+  else if (nearestForwardAxis == vec3f::UnitY()) 
+  {
+    rotation = quatf(Eigen::AngleAxisf(M_PI_2, vec3f::UnitX()));
+    if (nearestUpAxis == vec3f::UnitX()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(M_PI_2, nearestForwardAxis));
+    }
+    else if (nearestUpAxis == -vec3f::UnitX()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(-M_PI_2, nearestForwardAxis));
+    }
+    else if (nearestUpAxis == vec3f::UnitZ()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(M_PI, nearestForwardAxis));
+    }
+  } 
+  else if (nearestForwardAxis == -vec3f::UnitY()) 
+  {
+    rotation = quatf(Eigen::AngleAxisf(-M_PI_2, vec3f::UnitX()));
+    if (nearestUpAxis == vec3f::UnitX()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(M_PI_2, nearestForwardAxis));
+    }
+    else if (nearestUpAxis == -vec3f::UnitX()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(-M_PI_2, nearestForwardAxis));
+    }
+    else if (nearestUpAxis == -vec3f::UnitZ()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(M_PI, nearestForwardAxis));
+    }
+  } 
+  else if (nearestForwardAxis == vec3f::UnitZ()) 
+  {
+    rotation = quatf(Eigen::AngleAxisf(0.f, vec3f::UnitY()));
+    if (nearestUpAxis == -vec3f::UnitY()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(M_PI, nearestForwardAxis));
+    }
+    else if (nearestUpAxis == vec3f::UnitX()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(M_PI_2, nearestForwardAxis));
+    }
+    else if (nearestUpAxis == -vec3f::UnitX()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(-M_PI_2, nearestForwardAxis));
+    }
+  } 
+  else if (nearestForwardAxis == -vec3f::UnitZ()) 
+  {
+    rotation = quatf(Eigen::AngleAxisf(M_PI, vec3f::UnitY()));
+    if (nearestUpAxis == -vec3f::UnitY()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(-M_PI, nearestForwardAxis));
+    }
+    else if (nearestUpAxis == vec3f::UnitX()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(-M_PI_2, nearestForwardAxis));
+    }
+    else if (nearestUpAxis == -vec3f::UnitX()) 
+    {
+      rotation *= quatf(Eigen::AngleAxisf(M_PI_2, nearestForwardAxis));
+    }
+  }
+
+  return rotation;
+}
+
+void Camera::align_to_nearest_axis() 
+{
+  vec3f forwardDirection = get_forward();
+  vec3f upDirection = get_up();
+
+  auto [nearestForwardAxis, nearestUpAxis] = nearest_axis(forwardDirection, upDirection);
+
+  m_Pitch = m_TargetPitch;
+  m_Yaw = m_TargetYaw;
+  m_Position = m_TargetPosition;
+
+  m_Orientation = compute_rotation(nearestForwardAxis, nearestUpAxis);
+}
+
+void Camera::align_to_plane(const vec3f& normal)
+{
+  vec3f forward = get_forward();
+  float dotFF = forward.dot(-normal);   
+  float dotFB = forward.dot(normal);  
+  
+  m_Pitch = m_TargetPitch;
+  m_Yaw = m_TargetYaw;
+  m_Position = m_TargetPosition;
+
+  if (dotFF > dotFB)
+  {
+    m_Orientation *= quatf::FromTwoVectors(forward, -normal).inverse();
+  }
+  else 
+  {
+    m_Orientation *= quatf::FromTwoVectors(forward,  normal).inverse();
+  }
+}
+
+void Camera::compute_target_size()
+{
+  float tanHalfFov = tan(utils::radians(m_FOV) * .5f);
+  m_TargetSize = m_Radius / tanHalfFov * .6f;
+}
+
+bool Camera::need_update() const
+{
+  return !utils::equal_float(m_TargetPitch, m_Pitch) 
+      || !utils::equal_float(m_TargetYaw, m_Yaw) 
+      || !utils::equal_float(m_TargetSize, m_Size) 
+      || !utils::equal_vec3f(m_TargetPosition, m_Position)
+      ;
+}
+
+void Camera::set_orientation(const vec3f& forward, float upAngle) 
+{ 
+  m_Orientation = quatf::FromTwoVectors(-vec3f::UnitZ(), forward.normalized()).inverse(); 
+  m_Orientation *= quatf(Eigen::AngleAxisf(utils::radians(upAngle), get_forward()));
+}
+
+std::string Camera::get_constraint_axis_str() const 
+{ 
+  if (m_ConstraintAxis == ConstraintAxis::UP_AXIS) return "Up";
+  if (m_ConstraintAxis == ConstraintAxis::RIGHT_AXIS) return "Right";
+  if (m_ConstraintAxis == ConstraintAxis::FORWARD_AXIS) return "Forward";
+  return "None"; 
+}
+
+#endif // CGAL_CAMERA_H
diff --git a/Basic_viewer/include/CGAL/GLFW/internal/Clipping_plane.h b/Basic_viewer/include/CGAL/GLFW/internal/Clipping_plane.h
new file mode 100644
index 000000000000..26922d48f0cc
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/internal/Clipping_plane.h
@@ -0,0 +1,235 @@
+#ifndef CGAL_CLIPPING_PLANE_H
+#define CGAL_CLIPPING_PLANE_H
+
+#include "utils.h"
+#include "Line_renderer.h"
+#include "../bv_settings.h"
+
+class Clipping_plane : public Line_renderer
+{
+public:
+  enum class ConstraintAxis { NO_CONSTRAINT, RIGHT_AXIS, UP_AXIS };
+
+public:
+  void update(const float deltaTime);
+
+  void reset_all();
+  void reset_position();
+  void reset_orientation();
+
+  mat4f get_matrix() const;
+
+  void rotation(const float x, const float y);
+
+  void translation(const float s);
+  void translation(const float x, const float y);
+  void translation(const vec3f& direction, const float s);
+
+  void switch_constraint_axis();
+
+  vec3f get_normal() const;
+
+  bool need_update() const;
+
+  inline float get_transparency() const { return m_Transparency; }
+  inline float get_rotation_speed() const { return m_RotationSpeed; }
+  inline float get_translation_speed() const { return m_TranslationSpeed; }
+  inline std::string get_constraint_axis_str() const { return m_ConstraintAxis == ConstraintAxis::NO_CONSTRAINT ? "None" : (m_ConstraintAxis == ConstraintAxis::RIGHT_AXIS ? "Right" : "Up"); }
+
+  void set_orientation(const vec3f& normal);
+
+  inline void set_size(const float size) { m_Size = size; }
+  inline void set_up_axis(const vec3f& upAxis) { m_UpAxis = upAxis; }
+  inline void set_right_axis(const vec3f& rightAxis) { m_RightAxis = rightAxis; }
+
+  inline void increase_rotation_speed(const float deltaTime) { m_RotationSpeed = std::min(m_RotationSpeed+100.f*deltaTime, 360.f); }
+  inline void decrease_rotation_speed(const float deltaTime) { m_RotationSpeed = std::max(m_RotationSpeed-100.f*deltaTime, 60.f); }
+
+  inline void increase_translation_speed(const float deltaTime) { m_TranslationSpeed = std::min(m_TranslationSpeed+deltaTime, 20.f); }
+  inline void decrease_translation_speed(const float deltaTime) { m_TranslationSpeed = std::max(m_TranslationSpeed-deltaTime, 0.5f); }
+
+  inline void increase_rotation_smoothness(const float deltaTime) { m_RotationSmoothFactor = std::max(m_RotationSmoothFactor-deltaTime, 0.01f); }
+  inline void decrease_rotation_smoothness(const float deltaTime) { m_RotationSmoothFactor = std::min(m_RotationSmoothFactor+deltaTime, 1.f); }
+
+  inline void increase_translation_smoothness(const float deltaTime) { m_TranslationSmoothFactor = std::max(m_TranslationSmoothFactor-deltaTime, 0.01f); }
+  inline void decrease_translation_smoothness(const float deltaTime) { m_TranslationSmoothFactor = std::min(m_TranslationSmoothFactor+deltaTime, 1.f); }
+
+  void align_to_direction(const vec3f& direction);
+
+private:
+  quatf m_Orientation { quatf::Identity() };
+
+  vec3f m_Position       { vec3f::Zero() };
+  vec3f m_TargetPosition { vec3f::Zero() };
+
+  vec3f m_UpAxis    { vec3f::UnitY() };
+  vec3f m_RightAxis { vec3f::UnitX() };
+
+  float m_Pitch       { 0.0f };
+  float m_TargetPitch { 0.0f };
+  float m_Yaw         { 0.0f };
+  float m_TargetYaw   { 0.0f };
+
+  float m_RotationSpeed    { CGAL_CLIPPING_PLANE_ROTATION_SPEED };
+  float m_TranslationSpeed { CGAL_CLIPPING_PLANE_TRANSLATION_SPEED };
+
+  float m_RotationSmoothFactor    { CGAL_CLIPPING_PLANE_ROTATION_SMOOTHNESS };
+  float m_TranslationSmoothFactor { CGAL_CLIPPING_PLANE_TRANSLATION_SMOOTHNESS };
+
+  float m_Size { 1.0f }; 
+
+  float m_Transparency { CGAL_CLIPPING_PLANE_RENDERING_TRANSPARENCY }; // to what extent the transparent part should be rendered;
+
+  ConstraintAxis m_ConstraintAxis { ConstraintAxis::NO_CONSTRAINT };
+};
+
+/********************METHOD IMPLEMENTATIONS********************/
+ 
+void Clipping_plane::update(const float deltaTime)
+{
+  if (need_update())
+  {
+    float smoothPitch = m_Pitch + m_RotationSmoothFactor * (m_TargetPitch - m_Pitch);   
+    float smoothYaw = m_Yaw + m_RotationSmoothFactor * (m_TargetYaw - m_Yaw);   
+
+    float pitchDelta = utils::radians((smoothPitch - m_Pitch) * m_RotationSpeed) * deltaTime;
+    float yawDelta = utils::radians((smoothYaw - m_Yaw) * m_RotationSpeed) * deltaTime;
+
+    quatf pitchQuaternion(Eigen::AngleAxisf(pitchDelta, m_RightAxis));
+    quatf yawQuaternion(Eigen::AngleAxisf(yawDelta, m_UpAxis));
+    m_Orientation = pitchQuaternion * yawQuaternion * m_Orientation;
+
+    m_Pitch = smoothPitch;
+    m_Yaw = smoothYaw;
+
+    m_Position += m_TranslationSmoothFactor * (m_TargetPosition - m_Position);
+  }
+}
+ 
+void Clipping_plane::reset_all()
+{
+  reset_position();
+  reset_orientation();
+  
+  m_RotationSmoothFactor    = CGAL_CLIPPING_PLANE_ROTATION_SMOOTHNESS;
+  m_TranslationSmoothFactor = CGAL_CLIPPING_PLANE_TRANSLATION_SMOOTHNESS;
+  m_RotationSpeed           = CGAL_CLIPPING_PLANE_ROTATION_SPEED;
+  m_TranslationSpeed        = CGAL_CLIPPING_PLANE_TRANSLATION_SPEED;
+
+  m_Size = 1.0f;
+}
+ 
+void Clipping_plane::reset_orientation() 
+{
+  m_Orientation = quatf::Identity(); 
+  m_Pitch = 0.0f;
+  m_TargetPitch = 0.0f;
+  m_Yaw = 0.0f;
+  m_TargetYaw = 0.0f;
+
+  m_UpAxis = vec3f::UnitY();
+  m_RightAxis = vec3f::UnitX();
+}
+ 
+void Clipping_plane::reset_position() 
+{
+  m_Position = vec3f::Zero();
+  m_TargetPosition = vec3f::Zero();
+}
+ vec3f Clipping_plane::get_normal() const
+{
+  return (m_Orientation * vec3f::UnitZ()).normalized();
+}
+ 
+mat4f Clipping_plane::get_matrix() const
+{
+  mat4f translation = transform::translation(m_Position);
+  mat4f rotation = transform::rotation(m_Orientation);
+
+  return translation * rotation;
+}
+ 
+void Clipping_plane::rotation(const float x, const float y) 
+{
+  if (
+    m_ConstraintAxis == ConstraintAxis::NO_CONSTRAINT ||
+    m_ConstraintAxis == ConstraintAxis::RIGHT_AXIS) 
+  {
+    m_TargetPitch += y;
+  }
+  
+  if (
+    m_ConstraintAxis == ConstraintAxis::NO_CONSTRAINT ||
+    m_ConstraintAxis == ConstraintAxis::UP_AXIS)
+  {
+    m_TargetYaw += x;
+  }
+}
+ 
+void Clipping_plane::translation(const float s)
+{
+  vec3f normal = get_normal();
+  m_TargetPosition -= m_Size * normal * s * m_TranslationSpeed; 
+}
+ 
+void Clipping_plane::translation(const float x, const float y) 
+{
+  m_TargetPosition -= m_Size * m_RightAxis * x * m_TranslationSpeed; 
+  m_TargetPosition -= m_Size * m_UpAxis * y * m_TranslationSpeed; 
+}
+ 
+void Clipping_plane::translation(const vec3f& direction, const float s) 
+{
+  m_TargetPosition -= m_Size * direction.normalized() * s * m_TranslationSpeed; 
+}
+ 
+void Clipping_plane::switch_constraint_axis() 
+{
+  switch(m_ConstraintAxis)
+  {
+    case ConstraintAxis::NO_CONSTRAINT: 
+      m_ConstraintAxis = ConstraintAxis::RIGHT_AXIS;
+      break;
+    case ConstraintAxis::RIGHT_AXIS: 
+      m_ConstraintAxis = ConstraintAxis::UP_AXIS;
+      break;
+    case ConstraintAxis::UP_AXIS: 
+      m_ConstraintAxis = ConstraintAxis::NO_CONSTRAINT;
+      break;
+  }
+}
+ 
+bool Clipping_plane::need_update() const
+{
+  return !utils::equal_float(m_TargetPitch, m_Pitch) 
+      || !utils::equal_float(m_TargetYaw, m_Yaw) 
+      || !utils::equal_vec3f(m_TargetPosition, m_Position)
+      ; 
+}
+ 
+void Clipping_plane::set_orientation(const vec3f& normal)
+{
+  m_Orientation = quatf::FromTwoVectors(vec3f::UnitZ(), normal);
+}
+
+void Clipping_plane::align_to_direction(const vec3f& direction)
+{
+  vec3f normal = get_normal();
+  float dotFF = normal.dot(-direction);   
+  float dotFB = normal.dot(direction);  
+  
+  m_Pitch = m_TargetPitch;
+  m_Yaw = m_TargetYaw;
+  m_Position = m_TargetPosition;
+
+  if (dotFF > dotFB)
+  {
+    m_Orientation = quatf::FromTwoVectors(normal, -direction) * m_Orientation;
+  }
+  else 
+  {
+    m_Orientation = quatf::FromTwoVectors(normal,  direction) * m_Orientation;
+  }
+}
+
+#endif // CGAL_CLIPPING_PLANE_H
diff --git a/Basic_viewer/include/CGAL/GLFW/internal/Input.h b/Basic_viewer/include/CGAL/GLFW/internal/Input.h
new file mode 100644
index 000000000000..daa97375fe03
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/internal/Input.h
@@ -0,0 +1,480 @@
+#ifndef CGAL_INPUT_GLFW_H
+#define CGAL_INPUT_GLFW_H
+
+#include <GLFW/glfw3.h>
+#include <unordered_map>
+#include <vector>
+#include <set>
+#include <utility>
+#include <string>
+#include <cctype>
+#include <iomanip>
+#include <chrono>
+#include <cassert>
+#include <iostream>
+
+using namespace std::chrono_literals;
+
+enum class InputDevice { MOUSE, KEYBOARD };
+enum class InputMode { HOLD, RELEASE };
+enum class KeyboardLayout { QWERTY, AZERTY };
+
+struct InputBinding 
+{
+  std::vector<int> keys {};
+  InputMode mode {};
+  InputDevice device {};
+
+  inline int priority() const { return static_cast<int>(keys.size()); }  
+  inline int size() const { return static_cast<int>(keys.size()); }  
+  inline int get(int idx) const 
+  { 
+    assert(static_cast<size_t>(idx) < keys.size()); 
+    return keys.at(idx); 
+  } 
+};
+
+struct Action
+{
+  InputBinding binding {};
+  int action {};
+};
+
+struct ActionComparator 
+{
+  bool operator()(const Action& action_1, const Action& action_2) const 
+  {
+    return action_1.binding.priority() >= action_2.binding.priority();
+  }
+};
+
+class Input
+{
+public:
+  using ActionEnum = int;
+  using DescriptorType = std::unordered_map<std::string, std::vector<std::pair<std::string, std::string>>>;
+public:
+  void add_keyboard_action(std::initializer_list<int> keys, InputMode mode, ActionEnum action); 
+
+  void add_mouse_action(std::initializer_list<int> keys, InputMode mode, ActionEnum action); 
+
+  void add_description(ActionEnum action, const std::string& section, const std::string& description);
+  void add_description(const std::string& action, const std::string& section, const std::string& description);
+
+  void print_help();
+
+  std::string get_binding_text_from_action(ActionEnum action);
+  inline void set_action_description(const DescriptorType& descriptor) { m_Descriptor = descriptor; }
+
+  inline std::pair<float, float> get_mouse_position() const { return m_MousePosition; }
+  inline std::pair<float, float> get_mouse_delta() const { return m_MouseDelta; }
+  inline std::pair<float, float> get_roll_mouse_delta() const { return m_RollMouseDelta; }
+  
+  inline float get_scroll_yOffset() { return clear_yOffset(); }
+  inline void set_keyboard_layout(KeyboardLayout layout) { m_KeyboardLayout = layout; }
+  inline bool is_qwerty_layout() const { return m_KeyboardLayout == KeyboardLayout::QWERTY; }
+
+  bool is_key_pressed(GLFWwindow* window, int key) const;
+  inline bool has_active_actions() const { return m_ActivatedActions.size() > 0; }
+
+  static int map_to_azerty(int key);
+  static int map_to_qwerty(int key);
+  static std::string get_string_from_keycode(int key);
+
+private:
+  void register_action_events(const InputBinding& keys, ActionEnum action);
+
+
+  inline float clear_yOffset() { int tmp = m_YOffset; m_YOffset = 0; return tmp; }
+
+protected:
+  virtual void start_action(ActionEnum action, const float deltaTime=0.0) = 0;
+  virtual void action_event(ActionEnum action, const float deltaTime=0.0) = 0;
+  virtual void end_action(ActionEnum action, const float deltaTime=0.0) = 0;
+
+  virtual void double_click_event(int key) = 0;
+  virtual void scroll_event(const float deltaTime) = 0;
+
+  void on_key_event(int key, int scancode, int action, int mods);
+  void on_cursor_event(double xpos, double ypos, int windowWidth, int windowHeight);
+  void on_mouse_button_event(int button, int action, int mods);
+  void on_scroll_event(double xoffset, double yoffset);
+
+  void handle_events(const float deltaTime=0.0);
+  
+private:
+  std::unordered_map<int, bool> m_KeyPressed {};
+  std::unordered_map<int, bool> m_KeyHold {};
+  std::unordered_map<int, bool> m_KeyConsumed {};
+  
+  std::unordered_map<ActionEnum, bool> m_StartedActions {};
+  std::unordered_map<ActionEnum, bool> m_ActivatedActions {};
+
+  DescriptorType m_Descriptor; 
+
+  std::set<Action, ActionComparator> m_ActionEvents {};
+  std::unordered_map<ActionEnum, std::vector<InputBinding>> m_ActionToBindingMapping {};
+
+  std::pair<float, float> m_MousePosition {};
+  std::pair<float, float> m_MouseDelta {};
+  std::pair<float, float> m_RollMouseDelta {};
+
+  KeyboardLayout m_KeyboardLayout { KeyboardLayout::QWERTY };
+
+  float m_YOffset { 0 };
+
+  std::chrono::_V2::system_clock::time_point m_LastTimeClick { std::chrono::high_resolution_clock::now() };
+  int m_LastButtonClicked { GLFW_KEY_UNKNOWN };
+};
+
+void Input::add_keyboard_action(std::initializer_list<int> keys, InputMode mode, ActionEnum action)
+{
+  register_action_events(InputBinding {
+    .keys = keys,
+    .mode = mode,
+    .device = InputDevice::KEYBOARD
+  }, action);
+}
+
+void Input::add_mouse_action(std::initializer_list<int> keys, InputMode mode, ActionEnum action)
+{
+  register_action_events(InputBinding {
+    .keys = keys,
+    .mode = mode,
+    .device = InputDevice::MOUSE
+  }, action);
+}
+
+void Input::register_action_events(const InputBinding& binding, ActionEnum action)
+{
+  m_ActionEvents.insert(Action {
+    .binding = binding,
+    .action = action 
+  });
+
+  m_ActionToBindingMapping[action].emplace_back(binding);
+}
+
+void Input::on_key_event(int key, int scancode, int action, int mods)
+{
+  if (!is_qwerty_layout()) key = map_to_azerty(key);
+
+  if (action == GLFW_PRESS || action == GLFW_REPEAT)
+  {
+    m_KeyPressed[key] = true;
+    m_KeyHold[key] = true;
+  }
+
+  if (action == GLFW_RELEASE)
+  {
+    m_KeyHold.erase(key);
+  }
+}
+
+void Input::on_cursor_event(double xpos, double ypos, int windowWidth, int windowHeight)
+{
+  auto& [mouseX, mouseY] = m_MousePosition; 
+  m_MouseDelta = { xpos - mouseX, ypos - mouseY };
+  m_MousePosition = { xpos, ypos };
+
+  m_RollMouseDelta = m_MouseDelta;
+  if (ypos < windowHeight / 2)
+  {
+    m_RollMouseDelta.first *= -1;
+  }
+
+  if (xpos < windowWidth / 2)
+  {
+    m_RollMouseDelta.second *= -1;
+  }
+}
+
+void Input::on_scroll_event(double xoffset, double yoffset)
+{
+  m_YOffset = yoffset;
+}
+
+void Input::on_mouse_button_event(int button, int action, int mods)
+{
+  if (action == GLFW_PRESS) 
+  {
+    auto time = std::chrono::high_resolution_clock::now();
+
+    const std::chrono::duration<double> dt = time - m_LastTimeClick;
+
+    if (m_LastButtonClicked == button && dt < 250ms)
+    {
+      this->double_click_event(button);
+    }
+
+    m_LastTimeClick = time;
+    m_LastButtonClicked = button;
+
+    m_KeyPressed[button] = true;
+    m_KeyHold[button] = true;
+  }
+
+  if (action == GLFW_RELEASE)
+  {
+    m_KeyHold.erase(button);
+  }
+}
+
+void Input::handle_events(const float deltaTime)
+{
+  m_KeyPressed.clear();
+  m_KeyConsumed.clear();
+  m_ActivatedActions.clear();
+
+  glfwPollEvents();
+
+  if (m_YOffset != 0)
+  {
+    scroll_event(deltaTime);
+  }
+
+  for (auto& [binding, action] : m_ActionEvents)
+  {
+    std::unordered_map<int, bool> &mappedkeyState = binding.mode == InputMode::HOLD ? m_KeyHold : m_KeyPressed;
+
+    if (!m_KeyConsumed[binding.get(0)] && mappedkeyState[binding.get(0)] && 
+        (binding.priority() < 2 || m_KeyHold[binding.get(1)]) && 
+        (binding.priority() < 3 || m_KeyHold[binding.get(2)])
+      )
+    {
+      m_KeyConsumed[binding.get(0)] = true;
+
+      m_ActivatedActions[action] = true;
+      if (binding.mode == InputMode::HOLD)
+      {
+        if (!m_StartedActions[action])
+        {
+          m_StartedActions[action] = true;
+          start_action(action, deltaTime);
+        }
+      }
+
+      action_event(action, deltaTime);
+    }
+  }
+
+  for (auto& [action, state] : m_StartedActions)
+  {
+    if (m_ActivatedActions.find(action) != m_ActivatedActions.end() && !m_ActivatedActions[action])
+    {
+      m_StartedActions[action] = false;
+      end_action(action, deltaTime);
+    }
+  }
+
+  m_MouseDelta = { 0.0f, 0.0f };
+  m_RollMouseDelta = { 0.0f, 0.0f };
+};
+
+std::string Input::get_binding_text_from_action(ActionEnum action)  
+{
+  std::vector<InputBinding> bindings = m_ActionToBindingMapping[action];
+
+  std::string result = "[";
+  for (size_t i = 0; i < bindings.size(); ++i)
+  {
+    auto& binding = bindings[i];
+    result += get_string_from_keycode(binding.get(binding.size()-1));
+    for (int j = binding.size()-2; j >= 0; --j)
+    {
+      result = result + "+" + get_string_from_keycode(binding.get(j));
+    }
+
+    if (i < bindings.size()-1)
+    {
+      result += "] or [";
+    }
+  }
+
+  result += "]";
+
+  return result;
+} 
+
+void Input::add_description(ActionEnum action, const std::string& section, const std::string& description) 
+{
+  std::string binding = get_binding_text_from_action(action);
+  add_description(binding, section, description);
+}
+
+void Input::add_description(const std::string& binding, const std::string& section, const std::string& description) 
+{
+  m_Descriptor[section].emplace_back(binding, description);
+}
+
+void Input::print_help()
+{
+  std::cout << "Basic Viewer GLFW - Features shortcuts  :" << "\n\n";
+
+  int n = 140-2;
+  std::string sectionFooter = "";
+  for (int i = 0; i < n; ++i)
+  {
+    sectionFooter += "=";  
+  }
+
+  for (const auto& [sectionTitle, infos] : m_Descriptor) 
+  {
+    std::string sectionHeader = " Section : " + sectionTitle + " ";
+
+    int nbIterations = n - sectionHeader.length();
+    for (int i = 0; i < nbIterations/4; ++i)
+    {
+      sectionHeader = "=" + sectionHeader + "===";
+    }
+    std::cout << sectionHeader << "\n";
+
+    for (const auto& [bindings, description] : infos) 
+    {
+      if (description.length() == 0) 
+      {
+        std::cout << '\n'; 
+        continue;
+      }
+
+      std::cout << std::setw(n/4+4) << std::right  << bindings
+                << " - "            << description << '\n';
+    }
+    
+    std::cout << sectionFooter << "\n";
+  }
+  std::cout << std::endl;
+
+  m_Descriptor.clear();
+}
+
+bool Input::is_key_pressed(GLFWwindow* window, int key) const
+{
+  if (m_KeyboardLayout == KeyboardLayout::AZERTY) 
+  {
+    key = map_to_qwerty(key);
+  }
+
+  int state = glfwGetKey(window, key);
+
+  return state == GLFW_PRESS || state == GLFW_REPEAT;  
+}
+
+std::string Input::get_string_from_keycode(int key)
+{
+  if (key >= 39 && key <= 96) 
+  {
+    return std::string(1, static_cast<char>(key));
+  }
+
+  switch(key)
+  {
+    case GLFW_KEY_SPACE:           return "SPACE";
+    case GLFW_KEY_ESCAPE:          return "ESCAPE";
+    case GLFW_KEY_ENTER:           return "ENTER";
+    case GLFW_KEY_TAB:             return "TAB";
+    case GLFW_KEY_BACKSPACE:       return "BACKSPACE";
+    case GLFW_KEY_INSERT:          return "INSERT";
+    case GLFW_KEY_DELETE:          return "DELETE";
+    case GLFW_KEY_RIGHT:           return "RIGHT";
+    case GLFW_KEY_LEFT:            return "LEFT";
+    case GLFW_KEY_DOWN:            return "DOWN";
+    case GLFW_KEY_UP:              return "UP";
+    case GLFW_KEY_PAGE_UP:         return "PAGE_UP";
+    case GLFW_KEY_PAGE_DOWN:       return "PAGE_DOWN";
+    case GLFW_KEY_HOME:            return "HOME";
+    case GLFW_KEY_END:             return "END";
+    case GLFW_KEY_CAPS_LOCK:       return "CAPS_LOCK";
+    case GLFW_KEY_SCROLL_LOCK:     return "SCROLL_LOCK";
+    case GLFW_KEY_NUM_LOCK:        return "NUM_LOCK";
+    case GLFW_KEY_PRINT_SCREEN:    return "PRINT_SCREEN";
+    case GLFW_KEY_PAUSE:           return "PAUSE";
+    case GLFW_KEY_F1:              return "F1";
+    case GLFW_KEY_F2:              return "F2";
+    case GLFW_KEY_F3:              return "F3";
+    case GLFW_KEY_F4:              return "F4";
+    case GLFW_KEY_F5:              return "F5";
+    case GLFW_KEY_F6:              return "F6";
+    case GLFW_KEY_F7:              return "F7";
+    case GLFW_KEY_F8:              return "F8";
+    case GLFW_KEY_F9:              return "F9";
+    case GLFW_KEY_F10:             return "F10";
+    case GLFW_KEY_F11:             return "F11";
+    case GLFW_KEY_F12:             return "F12";
+    case GLFW_KEY_F13:             return "F13";
+    case GLFW_KEY_F14:             return "F14";
+    case GLFW_KEY_F15:             return "F15";
+    case GLFW_KEY_F16:             return "F16";
+    case GLFW_KEY_F17:             return "F17";
+    case GLFW_KEY_F18:             return "F18";
+    case GLFW_KEY_F19:             return "F19";
+    case GLFW_KEY_F20:             return "F20";
+    case GLFW_KEY_F21:             return "F21";
+    case GLFW_KEY_F22:             return "F22";
+    case GLFW_KEY_F23:             return "F23";
+    case GLFW_KEY_F24:             return "F24";
+    case GLFW_KEY_F25:             return "F25";
+    case GLFW_KEY_KP_0:            return "NUMP_0";
+    case GLFW_KEY_KP_1:            return "NUMP_1";
+    case GLFW_KEY_KP_2:            return "NUMP_2";
+    case GLFW_KEY_KP_3:            return "NUMP_3";
+    case GLFW_KEY_KP_4:            return "NUMP_4";
+    case GLFW_KEY_KP_5:            return "NUMP_5";
+    case GLFW_KEY_KP_6:            return "NUMP_6";
+    case GLFW_KEY_KP_7:            return "NUMP_7";
+    case GLFW_KEY_KP_8:            return "NUMP_8";
+    case GLFW_KEY_KP_9:            return "NUMP_9";
+    case GLFW_KEY_KP_DECIMAL:      return "NUMP_DECIMAL";
+    case GLFW_KEY_KP_DIVIDE:       return "NUMP_DIVIDE";
+    case GLFW_KEY_KP_MULTIPLY:     return "NUMP_MULTIPLY";
+    case GLFW_KEY_KP_SUBTRACT:     return "NUMP_SUBTRACT";
+    case GLFW_KEY_KP_ADD:          return "NUMP_ADD";
+    case GLFW_KEY_KP_ENTER:        return "NUMP_ENTER";
+    case GLFW_KEY_KP_EQUAL:        return "NUMP_EQUAL";
+    case GLFW_KEY_LEFT_SHIFT:      return "LSHIFT";
+    case GLFW_KEY_LEFT_CONTROL:    return "LCTRL";
+    case GLFW_KEY_LEFT_ALT:        return "LALT";
+    case GLFW_KEY_LEFT_SUPER:      return "LSUPER";
+    case GLFW_KEY_RIGHT_SHIFT:     return "RSHIFT";
+    case GLFW_KEY_RIGHT_CONTROL:   return "RCTRL";
+    case GLFW_KEY_RIGHT_ALT:       return "RALT";
+    case GLFW_KEY_RIGHT_SUPER:     return "RSUPER";
+    case GLFW_KEY_MENU:            return "MENU";  
+    case GLFW_MOUSE_BUTTON_LAST:   return "MOUSE_BTN_LAST";
+    case GLFW_MOUSE_BUTTON_LEFT:   return "MOUSE_BTN_LEFT";
+    case GLFW_MOUSE_BUTTON_RIGHT:  return "MOUSE_BTN_RIGHT";
+    case GLFW_MOUSE_BUTTON_MIDDLE: return "MOUSE_BTN_MIDDLE";         
+    default:                       return "NONE";    
+  }
+}
+
+int Input::map_to_azerty(int key)
+{
+  switch(key)
+  {
+    case GLFW_KEY_Q:         return GLFW_KEY_A;
+    case GLFW_KEY_A:         return GLFW_KEY_Q;
+    case GLFW_KEY_W:         return GLFW_KEY_Z;
+    case GLFW_KEY_Z:         return GLFW_KEY_W;
+    case GLFW_KEY_SEMICOLON: return GLFW_KEY_M;
+    case GLFW_KEY_M:         return GLFW_KEY_COMMA;
+    default:                 return key; 
+  }
+} 
+
+int Input::map_to_qwerty(int key)
+{
+  switch(key)
+  {
+    case GLFW_KEY_Q:     return GLFW_KEY_A;
+    case GLFW_KEY_A:     return GLFW_KEY_Q;
+    case GLFW_KEY_W:     return GLFW_KEY_Z;
+    case GLFW_KEY_Z:     return GLFW_KEY_W;
+    case GLFW_KEY_M:     return GLFW_KEY_SEMICOLON;
+    case GLFW_KEY_COMMA: return GLFW_KEY_M;
+    default:             return key; 
+  }
+}
+
+
+#endif // CGAL_INPUT_GLFW_H
diff --git a/Basic_viewer/include/CGAL/GLFW/internal/Line_renderer.h b/Basic_viewer/include/CGAL/GLFW/internal/Line_renderer.h
new file mode 100644
index 000000000000..dc9e48b0d1db
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/internal/Line_renderer.h
@@ -0,0 +1,103 @@
+#ifndef LINE_RENDERER_GLFW_H
+#define LINE_RENDERER_GLFW_H
+
+#include <vector>
+
+#include <glad/glad.h>
+
+#include "utils.h"
+#include "buffer/VAO.h"
+
+class Line_renderer {
+public:
+  void initialize_buffers(const BufferLayout& layout);
+  void load_buffers();
+  void add_line(const vec3f& start, const vec3f& end);
+  void add_line(const vec3f& start, const vec3f& end, const vec3f& color);
+  void draw();
+
+  inline bool are_buffers_loaded() const { return m_AreBuffersLoaded; }
+  inline bool are_buffers_initialized() const { return m_AreBuffersInitialized; }
+
+  inline void set_width(const float width) { m_Width = width; }
+
+private: 
+  std::vector<float> m_Vertices {};
+
+  float m_Width { 1.0f };
+
+  std::shared_ptr<VAO> m_VAO;
+  std::shared_ptr<VBO> m_VBO;
+
+  bool m_AreBuffersLoaded { false };
+  bool m_AreBuffersInitialized { false };
+};
+
+/********************METHOD IMPLEMENTATIONS********************/
+
+void Line_renderer::initialize_buffers(const BufferLayout& layout) 
+{
+  m_VAO = VAO::create();
+  m_VBO = VBO::create();
+  m_VBO->set_layout(layout);
+  m_VAO->set_VBO(m_VBO);
+
+  m_AreBuffersInitialized = true;
+}
+
+void Line_renderer::load_buffers() 
+{
+  assert(are_buffers_initialized());
+
+  m_VAO->bind();
+  m_VBO->load(m_Vertices.data(), m_Vertices.size());
+
+  m_AreBuffersLoaded = true;
+}
+
+void Line_renderer::add_line(const vec3f& start, const vec3f& end) 
+{
+  m_Vertices.push_back(start.x());
+  m_Vertices.push_back(start.y());
+  m_Vertices.push_back(start.z());
+
+  m_Vertices.push_back(end.x());
+  m_Vertices.push_back(end.y());
+  m_Vertices.push_back(end.z());
+}
+
+void Line_renderer::add_line(const vec3f& start, const vec3f& end, const vec3f& color) 
+{
+  m_Vertices.push_back(start.x());
+  m_Vertices.push_back(start.y());
+  m_Vertices.push_back(start.z());
+  m_Vertices.push_back(color.x());
+  m_Vertices.push_back(color.y());
+  m_Vertices.push_back(color.z());
+
+  m_Vertices.push_back(end.x());
+  m_Vertices.push_back(end.y());
+  m_Vertices.push_back(end.z());
+  m_Vertices.push_back(color.x());
+  m_Vertices.push_back(color.y());
+  m_Vertices.push_back(color.z());
+}
+
+void Line_renderer::draw()  
+{
+  assert(are_buffers_loaded());
+
+  if (m_Vertices.empty()) return; 
+
+  unsigned int nComponents = m_VBO->get_layout().get_stride() / sizeof(float);
+  
+  m_VAO->bind();
+  glLineWidth(m_Width);
+  glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(m_Vertices.size()/nComponents)); // 6 = n components per vertex
+  glLineWidth(1.f);
+}
+
+#endif // LINE_RENDERER_GLFW_H
+
+
+
diff --git a/Basic_viewer/include/CGAL/GLFW/internal/Shader.h b/Basic_viewer/include/CGAL/GLFW/internal/Shader.h
new file mode 100644
index 000000000000..c14cca8fd629
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/internal/Shader.h
@@ -0,0 +1,149 @@
+#ifndef CGAL_SHADER_GLFW_H
+#define CGAL_SHADER_GLFW_H
+
+#include <unordered_map>
+#include <iostream>
+#include <memory>
+
+#include <glad/glad.h>
+
+class Shader
+{
+public:
+  Shader()=default;
+  Shader(int program);
+  ~Shader();
+
+  inline void use() const { glUseProgram(m_Program); }
+  inline void destroy() { if (m_Program != 0) glDeleteProgram(m_Program); }
+
+  int get_uniform_location(const GLchar* name);
+
+  inline void set_mat4f(const GLchar* name, const GLfloat* data, GLboolean transpose=false) { glUniformMatrix4fv(get_uniform_location(name), 1, transpose, data); }
+  inline void set_vec4f(const GLchar* name, const GLfloat* data) { glUniform4fv(get_uniform_location(name), 1, data); }
+  inline void set_vec3f(const GLchar* name, const GLfloat* data) { glUniform3fv(get_uniform_location(name), 1, data); }
+  inline void set_vec2f(const GLchar* name, const GLfloat* data) { glUniform2fv(get_uniform_location(name), 1, data); }
+  inline void set_float(const GLchar* name, const float data) { glUniform1f(get_uniform_location(name), data); }
+  inline void set_int(const GLchar* name, const int data) { glUniform1i(get_uniform_location(name), data); }
+
+  static std::shared_ptr<Shader> create(const GLchar* sourceVertex, const GLchar* sourceFragment, const GLchar* sourceGeometry=nullptr);
+
+  static GLchar* enum_type_to_str(GLenum type);
+
+private:
+  static void check_compile_errors(unsigned int  shader, const GLchar* type);
+  static unsigned int  compile_shader(GLenum type, const GLchar* source);
+
+private:
+  std::unordered_map<const GLchar*, int> m_Uniforms {};
+  int m_Program { 0 };
+};
+
+/********************METHOD IMPLEMENTATIONS********************/
+
+Shader::Shader(int program) : 
+  m_Program(program) 
+{
+}
+
+Shader::~Shader()
+{
+  destroy();
+}
+
+int Shader::get_uniform_location(const GLchar* name)
+{
+  int loc = m_Uniforms[name];
+  if (loc != 0)
+  {
+    return loc;
+  }
+
+  loc = glGetUniformLocation(m_Program, name);
+  m_Uniforms[name] = loc;
+  return loc;
+}
+
+GLchar* Shader::enum_type_to_str(GLenum type)
+{
+  switch (type)
+  {
+  case GL_VERTEX_SHADER:   return "VERTEX";
+  case GL_GEOMETRY_SHADER: return "GEOMETRY";
+  case GL_FRAGMENT_SHADER: return "FRAGMENT";
+  default: 
+    std::cerr << "Unsupported shader enum type!" << std::endl; 
+    return "UNSUPPORTED TYPE";
+  }
+}
+
+unsigned int  Shader::compile_shader(GLenum type, const GLchar* source)
+{
+  unsigned int  shader = glCreateShader(type);
+  glShaderSource(shader, 1, &source, nullptr);
+  glCompileShader(shader);
+  Shader::check_compile_errors(shader, Shader::enum_type_to_str(type));
+  return shader; 
+}
+
+std::shared_ptr<Shader> Shader::create(const GLchar* sourceVertex, const GLchar* sourceFragment, const GLchar* sourceGeometry)
+{
+  unsigned int  vertexShader = Shader::compile_shader(GL_VERTEX_SHADER, sourceVertex);
+  unsigned int  geometryShader;
+  if (sourceGeometry)
+  {
+    geometryShader = Shader::compile_shader(GL_GEOMETRY_SHADER, sourceGeometry);
+  }
+  unsigned int  fragmentShader = Shader::compile_shader(GL_FRAGMENT_SHADER, sourceFragment);
+
+  unsigned int  program = glCreateProgram();
+  glAttachShader(program, vertexShader);
+  if (sourceGeometry)
+  {
+    glAttachShader(program, geometryShader);
+  }
+  glAttachShader(program, fragmentShader);
+
+  glLinkProgram(program);
+  Shader::check_compile_errors(program, "PROGRAM");
+
+  glDeleteShader(vertexShader);
+  if (sourceGeometry)   
+  {
+    glDeleteShader(geometryShader);
+  }
+  glDeleteShader(fragmentShader);
+
+  return std::make_shared<Shader>(program);
+}
+
+void Shader::check_compile_errors(unsigned int  shader, const GLchar* type)
+{
+  GLint success;
+  GLchar infoLog[1024];
+
+  if (type != "PROGRAM")
+  {
+    glGetShaderiv(shader, GL_COMPILE_STATUS, &success);
+
+    if (!success)
+    {
+      glGetShaderInfoLog(shader, 1024, NULL, infoLog);
+      std::cout << "ERROR::SHADER_COMPILATION_ERROR of type: " << type << "\n"
+                << infoLog << "\n -- --------------------------------------------------- -- " << std::endl;
+    }
+  }
+  else
+  {
+    glGetProgramiv(shader, GL_LINK_STATUS, &success);
+
+    if (!success)
+    {
+      glGetProgramInfoLog(shader, 1024, NULL, infoLog);
+      std::cout << "ERROR::PROGRAM_LINKING_ERROR of type: " << type << "\n"
+                << infoLog << "\n -- --------------------------------------------------- -- " << std::endl;
+    }
+  }
+}
+
+#endif // CGAL_SHADER_GLFW_H
\ No newline at end of file
diff --git a/Basic_viewer/include/CGAL/GLFW/internal/buffer/BufferObject.h b/Basic_viewer/include/CGAL/GLFW/internal/buffer/BufferObject.h
new file mode 100644
index 000000000000..53c8e2b0132a
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/internal/buffer/BufferObject.h
@@ -0,0 +1,225 @@
+#ifndef CGAL_BUFFER_H
+#define CGAL_BUFFER_H
+
+#include <iostream>
+#include <vector>
+#include <memory>
+
+#include <glad/glad.h>
+
+// Inspired by https://github.com/TheCherno/Hazel/blob/master/Hazel/src/Platform/OpenGL/OpenGLBuffer.h
+enum class ShaderDataType 
+{
+  FLOAT, FLOAT2, FLOAT3, FLOAT4, INT, INT2, INT3, INT4, UINT, UINT2, UINT3, UINT4, BOOL, MAT3, MAT4 
+};
+
+GLenum get_shader_data_type_to_opengl_base_type(ShaderDataType type)
+{
+  switch(type)
+  {
+    case ShaderDataType::BOOL:   return GL_BOOL;
+    case ShaderDataType::FLOAT:  return GL_FLOAT;
+    case ShaderDataType::FLOAT2: return GL_FLOAT;
+    case ShaderDataType::FLOAT3: return GL_FLOAT;
+    case ShaderDataType::FLOAT4: return GL_FLOAT;
+    case ShaderDataType::MAT3:   return GL_FLOAT;
+    case ShaderDataType::MAT4:   return GL_FLOAT;
+    case ShaderDataType::INT:    return GL_INT;
+    case ShaderDataType::INT2:   return GL_INT;
+    case ShaderDataType::INT3:   return GL_INT;
+    case ShaderDataType::INT4:   return GL_INT;
+    case ShaderDataType::UINT:   return GL_UNSIGNED_INT;
+    case ShaderDataType::UINT2:  return GL_UNSIGNED_INT;
+    case ShaderDataType::UINT3:  return GL_UNSIGNED_INT;
+    case ShaderDataType::UINT4:  return GL_UNSIGNED_INT;
+    default: throw(errno);
+  }
+}
+
+size_t get_shader_data_type_size(ShaderDataType type)
+{
+  switch(type)
+  {
+    case ShaderDataType::BOOL:   return 1;
+    case ShaderDataType::FLOAT:  return 4;
+    case ShaderDataType::FLOAT2: return 4 * 2;
+    case ShaderDataType::FLOAT3: return 4 * 3;
+    case ShaderDataType::FLOAT4: return 4 * 4;
+    case ShaderDataType::INT:    return 4;
+    case ShaderDataType::INT2:   return 4 * 2;
+    case ShaderDataType::INT3:   return 4 * 3;
+    case ShaderDataType::INT4:   return 4 * 4;
+    case ShaderDataType::UINT:   return 4;
+    case ShaderDataType::UINT2:  return 4 * 2;
+    case ShaderDataType::UINT3:  return 4 * 3;
+    case ShaderDataType::UINT4:  return 4 * 4;
+    case ShaderDataType::MAT3:   return 4 * 3 * 3;
+    case ShaderDataType::MAT4:   return 4 * 4 * 4;
+    default: throw(errno);
+  }
+}
+
+struct BufferElement
+{
+  ShaderDataType Type;
+  size_t Size; 
+  size_t Offset;
+  bool Normalized; 
+
+  BufferElement(ShaderDataType type, bool normalized=false) : Type(type), Size(get_shader_data_type_size(type)), Offset(0), Normalized(normalized) {}  
+
+  unsigned int get_component_count() const
+  {
+    switch(Type)
+    {
+      case ShaderDataType::BOOL:   return 1;
+      case ShaderDataType::FLOAT:  return 1;
+      case ShaderDataType::FLOAT2: return 2;
+      case ShaderDataType::FLOAT3: return 3;
+      case ShaderDataType::FLOAT4: return 4;
+      case ShaderDataType::INT:    return 1;
+      case ShaderDataType::INT2:   return 2;
+      case ShaderDataType::INT3:   return 3;
+      case ShaderDataType::INT4:   return 4;
+      case ShaderDataType::UINT:   return 1;
+      case ShaderDataType::UINT2:  return 2;
+      case ShaderDataType::UINT3:  return 3;
+      case ShaderDataType::UINT4:  return 4;
+      case ShaderDataType::MAT3:   return 3; // 3 * float3;
+      case ShaderDataType::MAT4:   return 4; // 4 * float4;
+      default: throw(errno);
+    }
+  }
+};
+
+class BufferLayout
+{
+public:
+  BufferLayout() : m_Elements(), m_Stride(0) {} 
+  BufferLayout(std::initializer_list<BufferElement> elements) : m_Elements(elements), m_Stride(0) 
+  {
+    compute_stride_and_offset();
+  }
+
+  inline size_t get_stride() const { return m_Stride; }
+
+  inline std::vector<BufferElement>::iterator begin() { return m_Elements.begin(); }
+  inline std::vector<BufferElement>::iterator end() { return m_Elements.end(); }
+  inline std::vector<BufferElement>::const_iterator begin() const { return m_Elements.begin(); }
+  inline std::vector<BufferElement>::const_iterator end() const { return m_Elements.end(); }
+
+private: 
+  void compute_stride_and_offset();
+
+private: 
+  std::vector<BufferElement> m_Elements; 
+  size_t m_Stride; 
+}; 
+
+void BufferLayout::compute_stride_and_offset()
+{
+  size_t offset = 0;
+  for (auto& element : m_Elements)
+  {
+    element.Offset = offset; 
+    offset += element.Size; 
+    m_Stride += element.Size; 
+  }
+}
+
+/*********************************Vertex Buffer Object*********************************/
+
+class VBO
+{
+public:
+  VBO();
+  VBO(float* vertices, unsigned int size);
+  ~VBO();
+
+  inline void load(float* vertices, unsigned int size)
+  {
+    glBindBuffer(GL_ARRAY_BUFFER, m_Id);
+    glBufferData(GL_ARRAY_BUFFER, sizeof(float) * size, vertices, GL_STATIC_DRAW);   
+  }
+
+  inline const BufferLayout& get_layout() const { return m_Layout; }
+  inline void set_layout(const BufferLayout& layout) { m_Layout = layout; }
+  
+  inline void bind()   const { glBindBuffer(GL_ARRAY_BUFFER, m_Id); }
+  inline void unbind() const { glBindBuffer(GL_ARRAY_BUFFER, 0); } 
+  inline void destroy() { glDeleteBuffers(1, &m_Id); }
+
+  inline static std::shared_ptr<VBO> create() { return std::make_shared<VBO>(); }
+  inline static std::shared_ptr<VBO> create(float* vertices, unsigned int size) { return std::make_shared<VBO>(vertices, size); }
+
+private:
+  unsigned int m_Id;
+  BufferLayout m_Layout;
+};
+
+VBO::VBO()
+{ 
+  glGenBuffers(1, &m_Id); 
+}
+
+VBO::VBO(float* vertices, unsigned int size)
+{ 
+  glGenBuffers(1, &m_Id); 
+  glBindBuffer(GL_ARRAY_BUFFER, m_Id);
+  glBufferData(GL_ARRAY_BUFFER, sizeof(float) * size, vertices, GL_STATIC_DRAW);  
+}
+
+VBO::~VBO()
+{ 
+  destroy();
+}
+
+/*********************************Index Buffer Object*********************************/
+
+class EBO
+{
+public:
+  EBO();
+  EBO(unsigned int* indices, unsigned int count);
+  ~EBO();
+
+  inline void load(unsigned int* indices, unsigned int count)
+  {
+    m_Count = count;
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_Id);
+    glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(unsigned int) * m_Count, indices, GL_STATIC_DRAW);   
+  }
+
+  inline unsigned int get_count() const { return m_Count; }
+
+  inline void bind()   const { glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_Id); }
+  inline void unbind() const { glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); } 
+  inline void destroy() { glDeleteBuffers(1, &m_Id); }
+
+  inline static std::shared_ptr<EBO> create() { return std::make_shared<EBO>(); }
+  inline static std::shared_ptr<EBO> create(unsigned int* indices, unsigned int count) { return std::make_shared<EBO>(indices, count); }
+
+private:
+  unsigned int m_Id;
+  unsigned int m_Count; 
+};
+
+EBO::EBO()  
+{ 
+  glGenBuffers(1, &m_Id); 
+}
+
+EBO::EBO(unsigned int* indices, unsigned int count)  
+{ 
+  glGenBuffers(1, &m_Id); 
+  m_Count = count;
+  glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_Id);
+  glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(unsigned int) * m_Count, indices, GL_STATIC_DRAW);   
+}
+
+EBO::~EBO()
+{
+  destroy();
+}
+
+#endif // CGAL_BUFFER_H
diff --git a/Basic_viewer/include/CGAL/GLFW/internal/buffer/VAO.h b/Basic_viewer/include/CGAL/GLFW/internal/buffer/VAO.h
new file mode 100644
index 000000000000..3acf242e4906
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/internal/buffer/VAO.h
@@ -0,0 +1,115 @@
+#ifndef CGAL_VAO_H
+#define CGAL_VAO_H
+
+#include <memory>
+
+#include <glad/glad.h>
+
+#include "BufferObject.h"
+
+// Inspired by https://github.com/TheCherno/Hazel/blob/master/Hazel/src/Platform/OpenGL/OpenGLVertexArray.h
+class VAO 
+{
+public:
+  VAO();
+  ~VAO();
+
+  void set_VBO(const std::shared_ptr<VBO>& vbo);
+  void set_EBO(const std::shared_ptr<EBO>& ebo);
+
+  inline const std::shared_ptr<VBO>& get_VBO() const { return m_VBO; }
+  inline const std::shared_ptr<EBO>& get_EBO() const { return m_EBO; }
+
+  inline void bind()   const { glBindVertexArray(m_Id); }
+  inline void unbind() const { glBindVertexArray(m_Id); }
+  inline void destroy() {glDeleteVertexArrays(1, &m_Id); }
+
+  inline static std::shared_ptr<VAO> create() { return std::make_shared<VAO>(); } 
+
+private:
+  unsigned int m_Id;
+  unsigned int m_VBOAttribIndex;
+  std::shared_ptr<VBO> m_VBO;
+  std::shared_ptr<EBO> m_EBO; 
+};
+
+VAO::VAO() : m_VBOAttribIndex(0) 
+{ 
+  glGenVertexArrays(1, &m_Id); 
+}
+
+VAO::~VAO()
+{
+  destroy();
+}
+
+void VAO::set_VBO(const std::shared_ptr<VBO>& vbo) 
+{
+  glBindVertexArray(m_Id);
+  vbo->bind();
+
+  const auto& layout = vbo->get_layout(); 
+  for (const auto& element : layout)
+  {
+    switch (element.Type)
+    {
+      case ShaderDataType::FLOAT:
+      case ShaderDataType::FLOAT2:
+      case ShaderDataType::FLOAT3:
+      case ShaderDataType::FLOAT4:
+        glEnableVertexAttribArray(m_VBOAttribIndex);
+        glVertexAttribPointer(m_VBOAttribIndex, 
+                              element.get_component_count(), 
+                              get_shader_data_type_to_opengl_base_type(element.Type),
+                              element.Normalized ? GL_TRUE : GL_FALSE, 
+                              layout.get_stride(), 
+                              (const void*) element.Offset);
+        m_VBOAttribIndex++;
+        break;
+      case ShaderDataType::INT:
+      case ShaderDataType::INT2:
+      case ShaderDataType::INT3:
+      case ShaderDataType::INT4:
+      case ShaderDataType::UINT:
+      case ShaderDataType::UINT2:
+      case ShaderDataType::UINT3:
+      case ShaderDataType::UINT4:
+      case ShaderDataType::BOOL:
+        glEnableVertexAttribArray(m_VBOAttribIndex);
+        glVertexAttribIPointer(m_VBOAttribIndex, 
+                                element.get_component_count(), 
+                                get_shader_data_type_to_opengl_base_type(element.Type),
+                                layout.get_stride(), 
+                                (const void*) element.Offset);
+        m_VBOAttribIndex++;
+        break;
+      case ShaderDataType::MAT3:
+      case ShaderDataType::MAT4:
+        unsigned int count = element.get_component_count();
+        for (unsigned int i = 0; i < count; ++i)
+        {
+          glEnableVertexAttribArray(m_VBOAttribIndex);
+          glVertexAttribPointer(m_VBOAttribIndex, 
+                                count, 
+                                get_shader_data_type_to_opengl_base_type(element.Type), 
+                                element.Normalized ? GL_TRUE : GL_FALSE, 
+                                layout.get_stride(), 
+                                (const void*) (element.Offset + sizeof(float) * count * i));
+          glVertexAttribDivisor(m_VBOAttribIndex, 1);
+          m_VBOAttribIndex++;
+        }
+        break;
+    }
+  }
+  m_VBO = vbo;
+}
+
+void VAO::set_EBO(const std::shared_ptr<EBO>& ebo) 
+{ 
+  glBindVertexArray(m_Id);
+  ebo->bind(); 
+
+  m_EBO = ebo; 
+}
+
+#endif // CGAL_VAO_H
diff --git a/Basic_viewer/include/CGAL/GLFW/internal/utils.h b/Basic_viewer/include/CGAL/GLFW/internal/utils.h
new file mode 100644
index 000000000000..a86e8edb1e58
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/internal/utils.h
@@ -0,0 +1,247 @@
+#ifndef CGAL_UTILS_EIGEN_H
+#define CGAL_UTILS_EIGEN_H
+
+#include <cmath>
+#include <chrono>
+
+
+#include <eigen3/Eigen/Core>
+#include <eigen3/Eigen/Dense>
+#include <eigen3/Eigen/Geometry>
+
+std::chrono::high_resolution_clock::time_point start;
+std::chrono::high_resolution_clock::time_point stop;
+
+std::chrono::microseconds duration;
+
+#define MEASURE_TIME(func) \
+        start = std::chrono::high_resolution_clock::now(); \
+        func; \
+        stop = std::chrono::high_resolution_clock::now(); \
+        duration = std::chrono::duration_cast<std::chrono::microseconds>(stop - start); \
+        std::cout << "Time taken by " << #func << ": " << (duration.count() / 1000.0) << "ms" << std::endl; \
+
+using vec2i = Eigen::Vector2i;
+using vec2f = Eigen::Vector2f;
+using vec3f = Eigen::Vector3f;
+using vec4f = Eigen::Vector4f;
+
+using mat3f = Eigen::Matrix3f;
+using mat4f = Eigen::Matrix4f;
+
+using quatf = Eigen::Quaternionf;
+
+namespace utils
+{
+  bool inside_bounding_box_2d(const vec2f& point, const vec2f& pmin, const vec2f& pmax)
+  {
+    return point.x() >= pmin.x() && point.x() <= pmax.x() && point.y() >= pmin.y() && point.y() <= pmax.y(); 
+  } 
+
+  vec2f normalized_coordinates(const vec2f& coords, float width, float height)
+  {
+    vec2f result; 
+    result.x() = coords.x() / width * 2 - 1;
+    result.y() = -1 * (coords.y() / height * 2 - 1);
+
+    return result; 
+  }
+
+  bool equal_float(float a, float b, float epsilon=0.001f)
+  {
+    return fabs(a-b) < epsilon;  
+  }
+
+  bool equal_vec3f(vec3f u, vec3f v, float epsilon=0.001f)
+  {
+    return equal_float(u.x(), v.x(), epsilon) && equal_float(u.y(), v.y(), epsilon) && equal_float(u.z(), v.z(), epsilon);  
+  }
+
+  float radians(float x)
+  {
+    return M_PI / 180 * x;
+  }
+
+  vec2f radians(const vec2f &v)
+  {
+    vec2f result;
+    result << radians(v.x()),
+        radians(v.y());
+    return result;
+  }
+
+  float degrees(float x)
+  {
+    return 180 / M_PI * x;
+  }
+
+  mat4f euler_angle_xy(float const &angleX, float const &angleY)
+  {
+    float cosX = std::cos(angleX);
+    float sinX = std::sin(angleX);
+    float cosY = std::cos(angleY);
+    float sinY = std::sin(angleY);
+
+    mat4f result = mat4f::Identity();
+    result(0, 0) = cosY;
+    result(1, 0) = -sinX * -sinY;
+    result(2, 0) = cosX * -sinY;
+    result(1, 1) = cosX;
+    result(2, 1) = sinX;
+    result(0, 2) = sinY;
+    result(1, 2) = -sinX * cosY;
+    result(2, 2) = cosX * cosY;
+
+    return result;
+  }
+
+  mat4f perspective(float fov, float aspect, float zNear, float zFar)
+  {
+    assert(std::abs(aspect - std::numeric_limits<float>::epsilon()) > 0.0);
+
+    const float tanHalfFov = std::tan(fov * 0.5);
+    mat4f result = mat4f::Zero();
+    result(0, 0) = 1.0 / (aspect * tanHalfFov);
+    result(1, 1) = 1.0 / (tanHalfFov);
+    result(2, 2) = -(zFar + zNear) / (zFar - zNear);
+    result(2, 3) = -(2.0 * zFar * zNear) / (zFar - zNear);
+    result(3, 2) = -1.0;
+
+    return result;
+  }
+
+  mat4f ortho(float left, float right, float bottom, float top, float zNear, float zFar)
+  {
+    mat4f result = mat4f::Identity();
+    result(0, 0) = 2.0 / (right - left);
+    result(1, 1) = 2.0 / (top - bottom);
+    result(2, 2) = -2.0 / (zFar - zNear);
+    result(0, 3) = -(right + left) / (right - left);
+    result(1, 3) = -(top + bottom) / (top - bottom);
+    result(2, 3) = -(zFar + zNear) / (zFar - zNear);
+
+    return result;
+  }
+
+  vec3f center(vec3f const &a, vec3f const &b)
+  {
+    vec3f ret;
+    ret.x() = (a.x() + b.x()) * 0.5f;
+    ret.y() = (a.y() + b.y()) * 0.5f;
+    ret.z() = (a.z() + b.z()) * 0.5f;
+
+    return ret;
+  }
+
+  float distance2(vec3f const &a, vec3f const &b)
+  {
+    float dx = (b.x() - a.x());
+    float dy = (b.y() - a.y());
+    float dz = (b.z() - a.z());
+
+    return dx * dx + dy * dy + dz * dz;
+  }
+
+  float distance(vec3f const &a, vec3f const &b)
+  {
+    return sqrt(distance2(a, b));
+  }
+
+  vec3f subVec(vec3f const &u, vec3f const &v)
+  {
+    vec3f w;
+    w.x() = v.x() - u.x();
+    w.y() = v.y() - u.y();
+    w.z() = v.z() - u.z();
+
+    return w;
+  }
+
+  vec3f mult_vec_mat(vec3f const &u, mat4f const &m)
+  {
+    vec4f v = u.homogeneous();
+    float x = m.row(0).dot(v);
+    float y = m.row(1).dot(v);
+    float z = m.row(2).dot(v);
+    float w = m.row(3).dot(v);
+
+    assert(w != 0);
+    float d = 1.f / w;
+    if (w == 1.f)
+      return vec3f(x, y, z);
+    return vec3f(x * d, y * d, z * d);
+
+    return u;
+  }
+
+  vec3f lerp(const vec3f& u, const vec3f& v, const float t)
+  {
+    return u * (1 - t) + v * t;
+  }
+} // namespace utils
+
+
+namespace transform
+{
+  mat4f rotationX(float theta)
+  {
+    Eigen::Affine3f transform{Eigen::AngleAxisf(theta, Eigen::Vector3f::UnitX()).toRotationMatrix()};
+    return transform.matrix();
+  }
+
+  mat4f rotationY(float theta)
+  {
+    Eigen::Affine3f transform{Eigen::AngleAxisf(theta, Eigen::Vector3f::UnitY()).toRotationMatrix()};
+    return transform.matrix();
+  }
+
+  mat4f rotationZ(float theta)
+  {
+    Eigen::Affine3f transform{Eigen::AngleAxisf(theta, Eigen::Vector3f::UnitZ()).toRotationMatrix()};
+    return transform.matrix();
+  }
+
+  mat4f rotation(float theta, vec3f axis)
+  {
+    Eigen::Affine3f transform{Eigen::AngleAxisf(theta, axis).toRotationMatrix()};
+    return transform.matrix();
+  }
+
+  mat4f rotation(const quatf& quaternion)
+  {
+    mat3f rotation3x3 = quaternion.toRotationMatrix();
+    mat4f rotation = mat4f::Identity();
+    rotation.block<3, 3>(0, 0) = rotation3x3;
+
+    return rotation;
+  }
+
+  mat4f translation(const vec3f& v)
+  {
+    Eigen::Affine3f transform{Eigen::Translation3f(v)};
+    return transform.matrix();
+  }
+
+  mat4f translation(const float x, const float y, const float z)
+  {
+    vec3f v(x, y, z);
+    Eigen::Affine3f transform{Eigen::Translation3f(v)};
+    return transform.matrix();
+  }
+
+  mat4f viewport(const float width, const float height)
+  {
+    float w = width * .5f;
+    float h = height * .5f;
+
+    mat4f ret;
+    ret << w, 0, 0, w,
+        0, h, 0, h,
+        0, 0, .5f, .5f,
+        0, 0, 0, 1.f;
+
+    return ret;
+  }
+}; // transform
+
+#endif // CGAL_UTILS_EIGEN_H
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glad/include/glad/glad.h b/Basic_viewer/include/CGAL/GLFW/vendor/glad/include/glad/glad.h
new file mode 100644
index 000000000000..913988a26cf4
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glad/include/glad/glad.h
@@ -0,0 +1,5169 @@
+/*
+
+    OpenGL loader generated by glad 0.1.36 on Thu Nov 16 10:22:08 2023.
+
+    Language/Generator: C/C++
+    Specification: gl
+    APIs: gl=4.6
+    Profile: compatibility
+    Extensions:
+        
+    Loader: True
+    Local files: False
+    Omit khrplatform: False
+    Reproducible: False
+
+    Commandline:
+        --profile="compatibility" --api="gl=4.6" --generator="c" --spec="gl" --extensions=""
+    Online:
+        https://glad.dav1d.de/#profile=compatibility&language=c&specification=gl&loader=on&api=gl%3D4.6
+*/
+
+
+#ifndef __glad_h_
+#define __glad_h_
+
+#ifdef __gl_h_
+#error OpenGL header already included, remove this include, glad already provides it
+#endif
+#define __gl_h_
+
+#if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__)
+#define APIENTRY __stdcall
+#endif
+
+#ifndef APIENTRY
+#define APIENTRY
+#endif
+#ifndef APIENTRYP
+#define APIENTRYP APIENTRY *
+#endif
+
+#ifndef GLAPIENTRY
+#define GLAPIENTRY APIENTRY
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct gladGLversionStruct {
+    int major;
+    int minor;
+};
+
+typedef void* (* GLADloadproc)(const char *name);
+
+#ifndef GLAPI
+# if defined(GLAD_GLAPI_EXPORT)
+#  if defined(_WIN32) || defined(__CYGWIN__)
+#   if defined(GLAD_GLAPI_EXPORT_BUILD)
+#    if defined(__GNUC__)
+#     define GLAPI __attribute__ ((dllexport)) extern
+#    else
+#     define GLAPI __declspec(dllexport) extern
+#    endif
+#   else
+#    if defined(__GNUC__)
+#     define GLAPI __attribute__ ((dllimport)) extern
+#    else
+#     define GLAPI __declspec(dllimport) extern
+#    endif
+#   endif
+#  elif defined(__GNUC__) && defined(GLAD_GLAPI_EXPORT_BUILD)
+#   define GLAPI __attribute__ ((visibility ("default"))) extern
+#  else
+#   define GLAPI extern
+#  endif
+# else
+#  define GLAPI extern
+# endif
+#endif
+
+GLAPI struct gladGLversionStruct GLVersion;
+
+GLAPI int gladLoadGL(void);
+
+GLAPI int gladLoadGLLoader(GLADloadproc);
+
+#include <KHR/khrplatform.h>
+typedef unsigned int GLenum;
+typedef unsigned char GLboolean;
+typedef unsigned int GLbitfield;
+typedef void GLvoid;
+typedef khronos_int8_t GLbyte;
+typedef khronos_uint8_t GLubyte;
+typedef khronos_int16_t GLshort;
+typedef khronos_uint16_t GLushort;
+typedef int GLint;
+typedef unsigned int GLuint;
+typedef khronos_int32_t GLclampx;
+typedef int GLsizei;
+typedef khronos_float_t GLfloat;
+typedef khronos_float_t GLclampf;
+typedef double GLdouble;
+typedef double GLclampd;
+typedef void *GLeglClientBufferEXT;
+typedef void *GLeglImageOES;
+typedef char GLchar;
+typedef char GLcharARB;
+#ifdef __APPLE__
+typedef void *GLhandleARB;
+#else
+typedef unsigned int GLhandleARB;
+#endif
+typedef khronos_uint16_t GLhalf;
+typedef khronos_uint16_t GLhalfARB;
+typedef khronos_int32_t GLfixed;
+typedef khronos_intptr_t GLintptr;
+typedef khronos_intptr_t GLintptrARB;
+typedef khronos_ssize_t GLsizeiptr;
+typedef khronos_ssize_t GLsizeiptrARB;
+typedef khronos_int64_t GLint64;
+typedef khronos_int64_t GLint64EXT;
+typedef khronos_uint64_t GLuint64;
+typedef khronos_uint64_t GLuint64EXT;
+typedef struct __GLsync *GLsync;
+struct _cl_context;
+struct _cl_event;
+typedef void (APIENTRY *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
+typedef void (APIENTRY *GLDEBUGPROCARB)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
+typedef void (APIENTRY *GLDEBUGPROCKHR)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
+typedef void (APIENTRY *GLDEBUGPROCAMD)(GLuint id,GLenum category,GLenum severity,GLsizei length,const GLchar *message,void *userParam);
+typedef unsigned short GLhalfNV;
+typedef GLintptr GLvdpauSurfaceNV;
+typedef void (APIENTRY *GLVULKANPROCNV)(void);
+#define GL_DEPTH_BUFFER_BIT 0x00000100
+#define GL_STENCIL_BUFFER_BIT 0x00000400
+#define GL_COLOR_BUFFER_BIT 0x00004000
+#define GL_FALSE 0
+#define GL_TRUE 1
+#define GL_POINTS 0x0000
+#define GL_LINES 0x0001
+#define GL_LINE_LOOP 0x0002
+#define GL_LINE_STRIP 0x0003
+#define GL_TRIANGLES 0x0004
+#define GL_TRIANGLE_STRIP 0x0005
+#define GL_TRIANGLE_FAN 0x0006
+#define GL_QUADS 0x0007
+#define GL_NEVER 0x0200
+#define GL_LESS 0x0201
+#define GL_EQUAL 0x0202
+#define GL_LEQUAL 0x0203
+#define GL_GREATER 0x0204
+#define GL_NOTEQUAL 0x0205
+#define GL_GEQUAL 0x0206
+#define GL_ALWAYS 0x0207
+#define GL_ZERO 0
+#define GL_ONE 1
+#define GL_SRC_COLOR 0x0300
+#define GL_ONE_MINUS_SRC_COLOR 0x0301
+#define GL_SRC_ALPHA 0x0302
+#define GL_ONE_MINUS_SRC_ALPHA 0x0303
+#define GL_DST_ALPHA 0x0304
+#define GL_ONE_MINUS_DST_ALPHA 0x0305
+#define GL_DST_COLOR 0x0306
+#define GL_ONE_MINUS_DST_COLOR 0x0307
+#define GL_SRC_ALPHA_SATURATE 0x0308
+#define GL_NONE 0
+#define GL_FRONT_LEFT 0x0400
+#define GL_FRONT_RIGHT 0x0401
+#define GL_BACK_LEFT 0x0402
+#define GL_BACK_RIGHT 0x0403
+#define GL_FRONT 0x0404
+#define GL_BACK 0x0405
+#define GL_LEFT 0x0406
+#define GL_RIGHT 0x0407
+#define GL_FRONT_AND_BACK 0x0408
+#define GL_NO_ERROR 0
+#define GL_INVALID_ENUM 0x0500
+#define GL_INVALID_VALUE 0x0501
+#define GL_INVALID_OPERATION 0x0502
+#define GL_OUT_OF_MEMORY 0x0505
+#define GL_CW 0x0900
+#define GL_CCW 0x0901
+#define GL_POINT_SIZE 0x0B11
+#define GL_POINT_SIZE_RANGE 0x0B12
+#define GL_POINT_SIZE_GRANULARITY 0x0B13
+#define GL_LINE_SMOOTH 0x0B20
+#define GL_LINE_WIDTH 0x0B21
+#define GL_LINE_WIDTH_RANGE 0x0B22
+#define GL_LINE_WIDTH_GRANULARITY 0x0B23
+#define GL_POLYGON_MODE 0x0B40
+#define GL_POLYGON_SMOOTH 0x0B41
+#define GL_CULL_FACE 0x0B44
+#define GL_CULL_FACE_MODE 0x0B45
+#define GL_FRONT_FACE 0x0B46
+#define GL_DEPTH_RANGE 0x0B70
+#define GL_DEPTH_TEST 0x0B71
+#define GL_DEPTH_WRITEMASK 0x0B72
+#define GL_DEPTH_CLEAR_VALUE 0x0B73
+#define GL_DEPTH_FUNC 0x0B74
+#define GL_STENCIL_TEST 0x0B90
+#define GL_STENCIL_CLEAR_VALUE 0x0B91
+#define GL_STENCIL_FUNC 0x0B92
+#define GL_STENCIL_VALUE_MASK 0x0B93
+#define GL_STENCIL_FAIL 0x0B94
+#define GL_STENCIL_PASS_DEPTH_FAIL 0x0B95
+#define GL_STENCIL_PASS_DEPTH_PASS 0x0B96
+#define GL_STENCIL_REF 0x0B97
+#define GL_STENCIL_WRITEMASK 0x0B98
+#define GL_VIEWPORT 0x0BA2
+#define GL_DITHER 0x0BD0
+#define GL_BLEND_DST 0x0BE0
+#define GL_BLEND_SRC 0x0BE1
+#define GL_BLEND 0x0BE2
+#define GL_LOGIC_OP_MODE 0x0BF0
+#define GL_DRAW_BUFFER 0x0C01
+#define GL_READ_BUFFER 0x0C02
+#define GL_SCISSOR_BOX 0x0C10
+#define GL_SCISSOR_TEST 0x0C11
+#define GL_COLOR_CLEAR_VALUE 0x0C22
+#define GL_COLOR_WRITEMASK 0x0C23
+#define GL_DOUBLEBUFFER 0x0C32
+#define GL_STEREO 0x0C33
+#define GL_LINE_SMOOTH_HINT 0x0C52
+#define GL_POLYGON_SMOOTH_HINT 0x0C53
+#define GL_UNPACK_SWAP_BYTES 0x0CF0
+#define GL_UNPACK_LSB_FIRST 0x0CF1
+#define GL_UNPACK_ROW_LENGTH 0x0CF2
+#define GL_UNPACK_SKIP_ROWS 0x0CF3
+#define GL_UNPACK_SKIP_PIXELS 0x0CF4
+#define GL_UNPACK_ALIGNMENT 0x0CF5
+#define GL_PACK_SWAP_BYTES 0x0D00
+#define GL_PACK_LSB_FIRST 0x0D01
+#define GL_PACK_ROW_LENGTH 0x0D02
+#define GL_PACK_SKIP_ROWS 0x0D03
+#define GL_PACK_SKIP_PIXELS 0x0D04
+#define GL_PACK_ALIGNMENT 0x0D05
+#define GL_MAX_TEXTURE_SIZE 0x0D33
+#define GL_MAX_VIEWPORT_DIMS 0x0D3A
+#define GL_SUBPIXEL_BITS 0x0D50
+#define GL_TEXTURE_1D 0x0DE0
+#define GL_TEXTURE_2D 0x0DE1
+#define GL_TEXTURE_WIDTH 0x1000
+#define GL_TEXTURE_HEIGHT 0x1001
+#define GL_TEXTURE_BORDER_COLOR 0x1004
+#define GL_DONT_CARE 0x1100
+#define GL_FASTEST 0x1101
+#define GL_NICEST 0x1102
+#define GL_BYTE 0x1400
+#define GL_UNSIGNED_BYTE 0x1401
+#define GL_SHORT 0x1402
+#define GL_UNSIGNED_SHORT 0x1403
+#define GL_INT 0x1404
+#define GL_UNSIGNED_INT 0x1405
+#define GL_FLOAT 0x1406
+#define GL_STACK_OVERFLOW 0x0503
+#define GL_STACK_UNDERFLOW 0x0504
+#define GL_CLEAR 0x1500
+#define GL_AND 0x1501
+#define GL_AND_REVERSE 0x1502
+#define GL_COPY 0x1503
+#define GL_AND_INVERTED 0x1504
+#define GL_NOOP 0x1505
+#define GL_XOR 0x1506
+#define GL_OR 0x1507
+#define GL_NOR 0x1508
+#define GL_EQUIV 0x1509
+#define GL_INVERT 0x150A
+#define GL_OR_REVERSE 0x150B
+#define GL_COPY_INVERTED 0x150C
+#define GL_OR_INVERTED 0x150D
+#define GL_NAND 0x150E
+#define GL_SET 0x150F
+#define GL_TEXTURE 0x1702
+#define GL_COLOR 0x1800
+#define GL_DEPTH 0x1801
+#define GL_STENCIL 0x1802
+#define GL_STENCIL_INDEX 0x1901
+#define GL_DEPTH_COMPONENT 0x1902
+#define GL_RED 0x1903
+#define GL_GREEN 0x1904
+#define GL_BLUE 0x1905
+#define GL_ALPHA 0x1906
+#define GL_RGB 0x1907
+#define GL_RGBA 0x1908
+#define GL_POINT 0x1B00
+#define GL_LINE 0x1B01
+#define GL_FILL 0x1B02
+#define GL_KEEP 0x1E00
+#define GL_REPLACE 0x1E01
+#define GL_INCR 0x1E02
+#define GL_DECR 0x1E03
+#define GL_VENDOR 0x1F00
+#define GL_RENDERER 0x1F01
+#define GL_VERSION 0x1F02
+#define GL_EXTENSIONS 0x1F03
+#define GL_NEAREST 0x2600
+#define GL_LINEAR 0x2601
+#define GL_NEAREST_MIPMAP_NEAREST 0x2700
+#define GL_LINEAR_MIPMAP_NEAREST 0x2701
+#define GL_NEAREST_MIPMAP_LINEAR 0x2702
+#define GL_LINEAR_MIPMAP_LINEAR 0x2703
+#define GL_TEXTURE_MAG_FILTER 0x2800
+#define GL_TEXTURE_MIN_FILTER 0x2801
+#define GL_TEXTURE_WRAP_S 0x2802
+#define GL_TEXTURE_WRAP_T 0x2803
+#define GL_REPEAT 0x2901
+#define GL_CURRENT_BIT 0x00000001
+#define GL_POINT_BIT 0x00000002
+#define GL_LINE_BIT 0x00000004
+#define GL_POLYGON_BIT 0x00000008
+#define GL_POLYGON_STIPPLE_BIT 0x00000010
+#define GL_PIXEL_MODE_BIT 0x00000020
+#define GL_LIGHTING_BIT 0x00000040
+#define GL_FOG_BIT 0x00000080
+#define GL_ACCUM_BUFFER_BIT 0x00000200
+#define GL_VIEWPORT_BIT 0x00000800
+#define GL_TRANSFORM_BIT 0x00001000
+#define GL_ENABLE_BIT 0x00002000
+#define GL_HINT_BIT 0x00008000
+#define GL_EVAL_BIT 0x00010000
+#define GL_LIST_BIT 0x00020000
+#define GL_TEXTURE_BIT 0x00040000
+#define GL_SCISSOR_BIT 0x00080000
+#define GL_ALL_ATTRIB_BITS 0xFFFFFFFF
+#define GL_QUAD_STRIP 0x0008
+#define GL_POLYGON 0x0009
+#define GL_ACCUM 0x0100
+#define GL_LOAD 0x0101
+#define GL_RETURN 0x0102
+#define GL_MULT 0x0103
+#define GL_ADD 0x0104
+#define GL_AUX0 0x0409
+#define GL_AUX1 0x040A
+#define GL_AUX2 0x040B
+#define GL_AUX3 0x040C
+#define GL_2D 0x0600
+#define GL_3D 0x0601
+#define GL_3D_COLOR 0x0602
+#define GL_3D_COLOR_TEXTURE 0x0603
+#define GL_4D_COLOR_TEXTURE 0x0604
+#define GL_PASS_THROUGH_TOKEN 0x0700
+#define GL_POINT_TOKEN 0x0701
+#define GL_LINE_TOKEN 0x0702
+#define GL_POLYGON_TOKEN 0x0703
+#define GL_BITMAP_TOKEN 0x0704
+#define GL_DRAW_PIXEL_TOKEN 0x0705
+#define GL_COPY_PIXEL_TOKEN 0x0706
+#define GL_LINE_RESET_TOKEN 0x0707
+#define GL_EXP 0x0800
+#define GL_EXP2 0x0801
+#define GL_COEFF 0x0A00
+#define GL_ORDER 0x0A01
+#define GL_DOMAIN 0x0A02
+#define GL_PIXEL_MAP_I_TO_I 0x0C70
+#define GL_PIXEL_MAP_S_TO_S 0x0C71
+#define GL_PIXEL_MAP_I_TO_R 0x0C72
+#define GL_PIXEL_MAP_I_TO_G 0x0C73
+#define GL_PIXEL_MAP_I_TO_B 0x0C74
+#define GL_PIXEL_MAP_I_TO_A 0x0C75
+#define GL_PIXEL_MAP_R_TO_R 0x0C76
+#define GL_PIXEL_MAP_G_TO_G 0x0C77
+#define GL_PIXEL_MAP_B_TO_B 0x0C78
+#define GL_PIXEL_MAP_A_TO_A 0x0C79
+#define GL_CURRENT_COLOR 0x0B00
+#define GL_CURRENT_INDEX 0x0B01
+#define GL_CURRENT_NORMAL 0x0B02
+#define GL_CURRENT_TEXTURE_COORDS 0x0B03
+#define GL_CURRENT_RASTER_COLOR 0x0B04
+#define GL_CURRENT_RASTER_INDEX 0x0B05
+#define GL_CURRENT_RASTER_TEXTURE_COORDS 0x0B06
+#define GL_CURRENT_RASTER_POSITION 0x0B07
+#define GL_CURRENT_RASTER_POSITION_VALID 0x0B08
+#define GL_CURRENT_RASTER_DISTANCE 0x0B09
+#define GL_POINT_SMOOTH 0x0B10
+#define GL_LINE_STIPPLE 0x0B24
+#define GL_LINE_STIPPLE_PATTERN 0x0B25
+#define GL_LINE_STIPPLE_REPEAT 0x0B26
+#define GL_LIST_MODE 0x0B30
+#define GL_MAX_LIST_NESTING 0x0B31
+#define GL_LIST_BASE 0x0B32
+#define GL_LIST_INDEX 0x0B33
+#define GL_POLYGON_STIPPLE 0x0B42
+#define GL_EDGE_FLAG 0x0B43
+#define GL_LIGHTING 0x0B50
+#define GL_LIGHT_MODEL_LOCAL_VIEWER 0x0B51
+#define GL_LIGHT_MODEL_TWO_SIDE 0x0B52
+#define GL_LIGHT_MODEL_AMBIENT 0x0B53
+#define GL_SHADE_MODEL 0x0B54
+#define GL_COLOR_MATERIAL_FACE 0x0B55
+#define GL_COLOR_MATERIAL_PARAMETER 0x0B56
+#define GL_COLOR_MATERIAL 0x0B57
+#define GL_FOG 0x0B60
+#define GL_FOG_INDEX 0x0B61
+#define GL_FOG_DENSITY 0x0B62
+#define GL_FOG_START 0x0B63
+#define GL_FOG_END 0x0B64
+#define GL_FOG_MODE 0x0B65
+#define GL_FOG_COLOR 0x0B66
+#define GL_ACCUM_CLEAR_VALUE 0x0B80
+#define GL_MATRIX_MODE 0x0BA0
+#define GL_NORMALIZE 0x0BA1
+#define GL_MODELVIEW_STACK_DEPTH 0x0BA3
+#define GL_PROJECTION_STACK_DEPTH 0x0BA4
+#define GL_TEXTURE_STACK_DEPTH 0x0BA5
+#define GL_MODELVIEW_MATRIX 0x0BA6
+#define GL_PROJECTION_MATRIX 0x0BA7
+#define GL_TEXTURE_MATRIX 0x0BA8
+#define GL_ATTRIB_STACK_DEPTH 0x0BB0
+#define GL_ALPHA_TEST 0x0BC0
+#define GL_ALPHA_TEST_FUNC 0x0BC1
+#define GL_ALPHA_TEST_REF 0x0BC2
+#define GL_LOGIC_OP 0x0BF1
+#define GL_AUX_BUFFERS 0x0C00
+#define GL_INDEX_CLEAR_VALUE 0x0C20
+#define GL_INDEX_WRITEMASK 0x0C21
+#define GL_INDEX_MODE 0x0C30
+#define GL_RGBA_MODE 0x0C31
+#define GL_RENDER_MODE 0x0C40
+#define GL_PERSPECTIVE_CORRECTION_HINT 0x0C50
+#define GL_POINT_SMOOTH_HINT 0x0C51
+#define GL_FOG_HINT 0x0C54
+#define GL_TEXTURE_GEN_S 0x0C60
+#define GL_TEXTURE_GEN_T 0x0C61
+#define GL_TEXTURE_GEN_R 0x0C62
+#define GL_TEXTURE_GEN_Q 0x0C63
+#define GL_PIXEL_MAP_I_TO_I_SIZE 0x0CB0
+#define GL_PIXEL_MAP_S_TO_S_SIZE 0x0CB1
+#define GL_PIXEL_MAP_I_TO_R_SIZE 0x0CB2
+#define GL_PIXEL_MAP_I_TO_G_SIZE 0x0CB3
+#define GL_PIXEL_MAP_I_TO_B_SIZE 0x0CB4
+#define GL_PIXEL_MAP_I_TO_A_SIZE 0x0CB5
+#define GL_PIXEL_MAP_R_TO_R_SIZE 0x0CB6
+#define GL_PIXEL_MAP_G_TO_G_SIZE 0x0CB7
+#define GL_PIXEL_MAP_B_TO_B_SIZE 0x0CB8
+#define GL_PIXEL_MAP_A_TO_A_SIZE 0x0CB9
+#define GL_MAP_COLOR 0x0D10
+#define GL_MAP_STENCIL 0x0D11
+#define GL_INDEX_SHIFT 0x0D12
+#define GL_INDEX_OFFSET 0x0D13
+#define GL_RED_SCALE 0x0D14
+#define GL_RED_BIAS 0x0D15
+#define GL_ZOOM_X 0x0D16
+#define GL_ZOOM_Y 0x0D17
+#define GL_GREEN_SCALE 0x0D18
+#define GL_GREEN_BIAS 0x0D19
+#define GL_BLUE_SCALE 0x0D1A
+#define GL_BLUE_BIAS 0x0D1B
+#define GL_ALPHA_SCALE 0x0D1C
+#define GL_ALPHA_BIAS 0x0D1D
+#define GL_DEPTH_SCALE 0x0D1E
+#define GL_DEPTH_BIAS 0x0D1F
+#define GL_MAX_EVAL_ORDER 0x0D30
+#define GL_MAX_LIGHTS 0x0D31
+#define GL_MAX_CLIP_PLANES 0x0D32
+#define GL_MAX_PIXEL_MAP_TABLE 0x0D34
+#define GL_MAX_ATTRIB_STACK_DEPTH 0x0D35
+#define GL_MAX_MODELVIEW_STACK_DEPTH 0x0D36
+#define GL_MAX_NAME_STACK_DEPTH 0x0D37
+#define GL_MAX_PROJECTION_STACK_DEPTH 0x0D38
+#define GL_MAX_TEXTURE_STACK_DEPTH 0x0D39
+#define GL_INDEX_BITS 0x0D51
+#define GL_RED_BITS 0x0D52
+#define GL_GREEN_BITS 0x0D53
+#define GL_BLUE_BITS 0x0D54
+#define GL_ALPHA_BITS 0x0D55
+#define GL_DEPTH_BITS 0x0D56
+#define GL_STENCIL_BITS 0x0D57
+#define GL_ACCUM_RED_BITS 0x0D58
+#define GL_ACCUM_GREEN_BITS 0x0D59
+#define GL_ACCUM_BLUE_BITS 0x0D5A
+#define GL_ACCUM_ALPHA_BITS 0x0D5B
+#define GL_NAME_STACK_DEPTH 0x0D70
+#define GL_AUTO_NORMAL 0x0D80
+#define GL_MAP1_COLOR_4 0x0D90
+#define GL_MAP1_INDEX 0x0D91
+#define GL_MAP1_NORMAL 0x0D92
+#define GL_MAP1_TEXTURE_COORD_1 0x0D93
+#define GL_MAP1_TEXTURE_COORD_2 0x0D94
+#define GL_MAP1_TEXTURE_COORD_3 0x0D95
+#define GL_MAP1_TEXTURE_COORD_4 0x0D96
+#define GL_MAP1_VERTEX_3 0x0D97
+#define GL_MAP1_VERTEX_4 0x0D98
+#define GL_MAP2_COLOR_4 0x0DB0
+#define GL_MAP2_INDEX 0x0DB1
+#define GL_MAP2_NORMAL 0x0DB2
+#define GL_MAP2_TEXTURE_COORD_1 0x0DB3
+#define GL_MAP2_TEXTURE_COORD_2 0x0DB4
+#define GL_MAP2_TEXTURE_COORD_3 0x0DB5
+#define GL_MAP2_TEXTURE_COORD_4 0x0DB6
+#define GL_MAP2_VERTEX_3 0x0DB7
+#define GL_MAP2_VERTEX_4 0x0DB8
+#define GL_MAP1_GRID_DOMAIN 0x0DD0
+#define GL_MAP1_GRID_SEGMENTS 0x0DD1
+#define GL_MAP2_GRID_DOMAIN 0x0DD2
+#define GL_MAP2_GRID_SEGMENTS 0x0DD3
+#define GL_TEXTURE_COMPONENTS 0x1003
+#define GL_TEXTURE_BORDER 0x1005
+#define GL_AMBIENT 0x1200
+#define GL_DIFFUSE 0x1201
+#define GL_SPECULAR 0x1202
+#define GL_POSITION 0x1203
+#define GL_SPOT_DIRECTION 0x1204
+#define GL_SPOT_EXPONENT 0x1205
+#define GL_SPOT_CUTOFF 0x1206
+#define GL_CONSTANT_ATTENUATION 0x1207
+#define GL_LINEAR_ATTENUATION 0x1208
+#define GL_QUADRATIC_ATTENUATION 0x1209
+#define GL_COMPILE 0x1300
+#define GL_COMPILE_AND_EXECUTE 0x1301
+#define GL_2_BYTES 0x1407
+#define GL_3_BYTES 0x1408
+#define GL_4_BYTES 0x1409
+#define GL_EMISSION 0x1600
+#define GL_SHININESS 0x1601
+#define GL_AMBIENT_AND_DIFFUSE 0x1602
+#define GL_COLOR_INDEXES 0x1603
+#define GL_MODELVIEW 0x1700
+#define GL_PROJECTION 0x1701
+#define GL_COLOR_INDEX 0x1900
+#define GL_LUMINANCE 0x1909
+#define GL_LUMINANCE_ALPHA 0x190A
+#define GL_BITMAP 0x1A00
+#define GL_RENDER 0x1C00
+#define GL_FEEDBACK 0x1C01
+#define GL_SELECT 0x1C02
+#define GL_FLAT 0x1D00
+#define GL_SMOOTH 0x1D01
+#define GL_S 0x2000
+#define GL_T 0x2001
+#define GL_R 0x2002
+#define GL_Q 0x2003
+#define GL_MODULATE 0x2100
+#define GL_DECAL 0x2101
+#define GL_TEXTURE_ENV_MODE 0x2200
+#define GL_TEXTURE_ENV_COLOR 0x2201
+#define GL_TEXTURE_ENV 0x2300
+#define GL_EYE_LINEAR 0x2400
+#define GL_OBJECT_LINEAR 0x2401
+#define GL_SPHERE_MAP 0x2402
+#define GL_TEXTURE_GEN_MODE 0x2500
+#define GL_OBJECT_PLANE 0x2501
+#define GL_EYE_PLANE 0x2502
+#define GL_CLAMP 0x2900
+#define GL_CLIP_PLANE0 0x3000
+#define GL_CLIP_PLANE1 0x3001
+#define GL_CLIP_PLANE2 0x3002
+#define GL_CLIP_PLANE3 0x3003
+#define GL_CLIP_PLANE4 0x3004
+#define GL_CLIP_PLANE5 0x3005
+#define GL_LIGHT0 0x4000
+#define GL_LIGHT1 0x4001
+#define GL_LIGHT2 0x4002
+#define GL_LIGHT3 0x4003
+#define GL_LIGHT4 0x4004
+#define GL_LIGHT5 0x4005
+#define GL_LIGHT6 0x4006
+#define GL_LIGHT7 0x4007
+#define GL_COLOR_LOGIC_OP 0x0BF2
+#define GL_POLYGON_OFFSET_UNITS 0x2A00
+#define GL_POLYGON_OFFSET_POINT 0x2A01
+#define GL_POLYGON_OFFSET_LINE 0x2A02
+#define GL_POLYGON_OFFSET_FILL 0x8037
+#define GL_POLYGON_OFFSET_FACTOR 0x8038
+#define GL_TEXTURE_BINDING_1D 0x8068
+#define GL_TEXTURE_BINDING_2D 0x8069
+#define GL_TEXTURE_INTERNAL_FORMAT 0x1003
+#define GL_TEXTURE_RED_SIZE 0x805C
+#define GL_TEXTURE_GREEN_SIZE 0x805D
+#define GL_TEXTURE_BLUE_SIZE 0x805E
+#define GL_TEXTURE_ALPHA_SIZE 0x805F
+#define GL_DOUBLE 0x140A
+#define GL_PROXY_TEXTURE_1D 0x8063
+#define GL_PROXY_TEXTURE_2D 0x8064
+#define GL_R3_G3_B2 0x2A10
+#define GL_RGB4 0x804F
+#define GL_RGB5 0x8050
+#define GL_RGB8 0x8051
+#define GL_RGB10 0x8052
+#define GL_RGB12 0x8053
+#define GL_RGB16 0x8054
+#define GL_RGBA2 0x8055
+#define GL_RGBA4 0x8056
+#define GL_RGB5_A1 0x8057
+#define GL_RGBA8 0x8058
+#define GL_RGB10_A2 0x8059
+#define GL_RGBA12 0x805A
+#define GL_RGBA16 0x805B
+#define GL_CLIENT_PIXEL_STORE_BIT 0x00000001
+#define GL_CLIENT_VERTEX_ARRAY_BIT 0x00000002
+#define GL_CLIENT_ALL_ATTRIB_BITS 0xFFFFFFFF
+#define GL_VERTEX_ARRAY_POINTER 0x808E
+#define GL_NORMAL_ARRAY_POINTER 0x808F
+#define GL_COLOR_ARRAY_POINTER 0x8090
+#define GL_INDEX_ARRAY_POINTER 0x8091
+#define GL_TEXTURE_COORD_ARRAY_POINTER 0x8092
+#define GL_EDGE_FLAG_ARRAY_POINTER 0x8093
+#define GL_FEEDBACK_BUFFER_POINTER 0x0DF0
+#define GL_SELECTION_BUFFER_POINTER 0x0DF3
+#define GL_CLIENT_ATTRIB_STACK_DEPTH 0x0BB1
+#define GL_INDEX_LOGIC_OP 0x0BF1
+#define GL_MAX_CLIENT_ATTRIB_STACK_DEPTH 0x0D3B
+#define GL_FEEDBACK_BUFFER_SIZE 0x0DF1
+#define GL_FEEDBACK_BUFFER_TYPE 0x0DF2
+#define GL_SELECTION_BUFFER_SIZE 0x0DF4
+#define GL_VERTEX_ARRAY 0x8074
+#define GL_NORMAL_ARRAY 0x8075
+#define GL_COLOR_ARRAY 0x8076
+#define GL_INDEX_ARRAY 0x8077
+#define GL_TEXTURE_COORD_ARRAY 0x8078
+#define GL_EDGE_FLAG_ARRAY 0x8079
+#define GL_VERTEX_ARRAY_SIZE 0x807A
+#define GL_VERTEX_ARRAY_TYPE 0x807B
+#define GL_VERTEX_ARRAY_STRIDE 0x807C
+#define GL_NORMAL_ARRAY_TYPE 0x807E
+#define GL_NORMAL_ARRAY_STRIDE 0x807F
+#define GL_COLOR_ARRAY_SIZE 0x8081
+#define GL_COLOR_ARRAY_TYPE 0x8082
+#define GL_COLOR_ARRAY_STRIDE 0x8083
+#define GL_INDEX_ARRAY_TYPE 0x8085
+#define GL_INDEX_ARRAY_STRIDE 0x8086
+#define GL_TEXTURE_COORD_ARRAY_SIZE 0x8088
+#define GL_TEXTURE_COORD_ARRAY_TYPE 0x8089
+#define GL_TEXTURE_COORD_ARRAY_STRIDE 0x808A
+#define GL_EDGE_FLAG_ARRAY_STRIDE 0x808C
+#define GL_TEXTURE_LUMINANCE_SIZE 0x8060
+#define GL_TEXTURE_INTENSITY_SIZE 0x8061
+#define GL_TEXTURE_PRIORITY 0x8066
+#define GL_TEXTURE_RESIDENT 0x8067
+#define GL_ALPHA4 0x803B
+#define GL_ALPHA8 0x803C
+#define GL_ALPHA12 0x803D
+#define GL_ALPHA16 0x803E
+#define GL_LUMINANCE4 0x803F
+#define GL_LUMINANCE8 0x8040
+#define GL_LUMINANCE12 0x8041
+#define GL_LUMINANCE16 0x8042
+#define GL_LUMINANCE4_ALPHA4 0x8043
+#define GL_LUMINANCE6_ALPHA2 0x8044
+#define GL_LUMINANCE8_ALPHA8 0x8045
+#define GL_LUMINANCE12_ALPHA4 0x8046
+#define GL_LUMINANCE12_ALPHA12 0x8047
+#define GL_LUMINANCE16_ALPHA16 0x8048
+#define GL_INTENSITY 0x8049
+#define GL_INTENSITY4 0x804A
+#define GL_INTENSITY8 0x804B
+#define GL_INTENSITY12 0x804C
+#define GL_INTENSITY16 0x804D
+#define GL_V2F 0x2A20
+#define GL_V3F 0x2A21
+#define GL_C4UB_V2F 0x2A22
+#define GL_C4UB_V3F 0x2A23
+#define GL_C3F_V3F 0x2A24
+#define GL_N3F_V3F 0x2A25
+#define GL_C4F_N3F_V3F 0x2A26
+#define GL_T2F_V3F 0x2A27
+#define GL_T4F_V4F 0x2A28
+#define GL_T2F_C4UB_V3F 0x2A29
+#define GL_T2F_C3F_V3F 0x2A2A
+#define GL_T2F_N3F_V3F 0x2A2B
+#define GL_T2F_C4F_N3F_V3F 0x2A2C
+#define GL_T4F_C4F_N3F_V4F 0x2A2D
+#define GL_UNSIGNED_BYTE_3_3_2 0x8032
+#define GL_UNSIGNED_SHORT_4_4_4_4 0x8033
+#define GL_UNSIGNED_SHORT_5_5_5_1 0x8034
+#define GL_UNSIGNED_INT_8_8_8_8 0x8035
+#define GL_UNSIGNED_INT_10_10_10_2 0x8036
+#define GL_TEXTURE_BINDING_3D 0x806A
+#define GL_PACK_SKIP_IMAGES 0x806B
+#define GL_PACK_IMAGE_HEIGHT 0x806C
+#define GL_UNPACK_SKIP_IMAGES 0x806D
+#define GL_UNPACK_IMAGE_HEIGHT 0x806E
+#define GL_TEXTURE_3D 0x806F
+#define GL_PROXY_TEXTURE_3D 0x8070
+#define GL_TEXTURE_DEPTH 0x8071
+#define GL_TEXTURE_WRAP_R 0x8072
+#define GL_MAX_3D_TEXTURE_SIZE 0x8073
+#define GL_UNSIGNED_BYTE_2_3_3_REV 0x8362
+#define GL_UNSIGNED_SHORT_5_6_5 0x8363
+#define GL_UNSIGNED_SHORT_5_6_5_REV 0x8364
+#define GL_UNSIGNED_SHORT_4_4_4_4_REV 0x8365
+#define GL_UNSIGNED_SHORT_1_5_5_5_REV 0x8366
+#define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
+#define GL_UNSIGNED_INT_2_10_10_10_REV 0x8368
+#define GL_BGR 0x80E0
+#define GL_BGRA 0x80E1
+#define GL_MAX_ELEMENTS_VERTICES 0x80E8
+#define GL_MAX_ELEMENTS_INDICES 0x80E9
+#define GL_CLAMP_TO_EDGE 0x812F
+#define GL_TEXTURE_MIN_LOD 0x813A
+#define GL_TEXTURE_MAX_LOD 0x813B
+#define GL_TEXTURE_BASE_LEVEL 0x813C
+#define GL_TEXTURE_MAX_LEVEL 0x813D
+#define GL_SMOOTH_POINT_SIZE_RANGE 0x0B12
+#define GL_SMOOTH_POINT_SIZE_GRANULARITY 0x0B13
+#define GL_SMOOTH_LINE_WIDTH_RANGE 0x0B22
+#define GL_SMOOTH_LINE_WIDTH_GRANULARITY 0x0B23
+#define GL_ALIASED_LINE_WIDTH_RANGE 0x846E
+#define GL_RESCALE_NORMAL 0x803A
+#define GL_LIGHT_MODEL_COLOR_CONTROL 0x81F8
+#define GL_SINGLE_COLOR 0x81F9
+#define GL_SEPARATE_SPECULAR_COLOR 0x81FA
+#define GL_ALIASED_POINT_SIZE_RANGE 0x846D
+#define GL_TEXTURE0 0x84C0
+#define GL_TEXTURE1 0x84C1
+#define GL_TEXTURE2 0x84C2
+#define GL_TEXTURE3 0x84C3
+#define GL_TEXTURE4 0x84C4
+#define GL_TEXTURE5 0x84C5
+#define GL_TEXTURE6 0x84C6
+#define GL_TEXTURE7 0x84C7
+#define GL_TEXTURE8 0x84C8
+#define GL_TEXTURE9 0x84C9
+#define GL_TEXTURE10 0x84CA
+#define GL_TEXTURE11 0x84CB
+#define GL_TEXTURE12 0x84CC
+#define GL_TEXTURE13 0x84CD
+#define GL_TEXTURE14 0x84CE
+#define GL_TEXTURE15 0x84CF
+#define GL_TEXTURE16 0x84D0
+#define GL_TEXTURE17 0x84D1
+#define GL_TEXTURE18 0x84D2
+#define GL_TEXTURE19 0x84D3
+#define GL_TEXTURE20 0x84D4
+#define GL_TEXTURE21 0x84D5
+#define GL_TEXTURE22 0x84D6
+#define GL_TEXTURE23 0x84D7
+#define GL_TEXTURE24 0x84D8
+#define GL_TEXTURE25 0x84D9
+#define GL_TEXTURE26 0x84DA
+#define GL_TEXTURE27 0x84DB
+#define GL_TEXTURE28 0x84DC
+#define GL_TEXTURE29 0x84DD
+#define GL_TEXTURE30 0x84DE
+#define GL_TEXTURE31 0x84DF
+#define GL_ACTIVE_TEXTURE 0x84E0
+#define GL_MULTISAMPLE 0x809D
+#define GL_SAMPLE_ALPHA_TO_COVERAGE 0x809E
+#define GL_SAMPLE_ALPHA_TO_ONE 0x809F
+#define GL_SAMPLE_COVERAGE 0x80A0
+#define GL_SAMPLE_BUFFERS 0x80A8
+#define GL_SAMPLES 0x80A9
+#define GL_SAMPLE_COVERAGE_VALUE 0x80AA
+#define GL_SAMPLE_COVERAGE_INVERT 0x80AB
+#define GL_TEXTURE_CUBE_MAP 0x8513
+#define GL_TEXTURE_BINDING_CUBE_MAP 0x8514
+#define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515
+#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516
+#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517
+#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518
+#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519
+#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A
+#define GL_PROXY_TEXTURE_CUBE_MAP 0x851B
+#define GL_MAX_CUBE_MAP_TEXTURE_SIZE 0x851C
+#define GL_COMPRESSED_RGB 0x84ED
+#define GL_COMPRESSED_RGBA 0x84EE
+#define GL_TEXTURE_COMPRESSION_HINT 0x84EF
+#define GL_TEXTURE_COMPRESSED_IMAGE_SIZE 0x86A0
+#define GL_TEXTURE_COMPRESSED 0x86A1
+#define GL_NUM_COMPRESSED_TEXTURE_FORMATS 0x86A2
+#define GL_COMPRESSED_TEXTURE_FORMATS 0x86A3
+#define GL_CLAMP_TO_BORDER 0x812D
+#define GL_CLIENT_ACTIVE_TEXTURE 0x84E1
+#define GL_MAX_TEXTURE_UNITS 0x84E2
+#define GL_TRANSPOSE_MODELVIEW_MATRIX 0x84E3
+#define GL_TRANSPOSE_PROJECTION_MATRIX 0x84E4
+#define GL_TRANSPOSE_TEXTURE_MATRIX 0x84E5
+#define GL_TRANSPOSE_COLOR_MATRIX 0x84E6
+#define GL_MULTISAMPLE_BIT 0x20000000
+#define GL_NORMAL_MAP 0x8511
+#define GL_REFLECTION_MAP 0x8512
+#define GL_COMPRESSED_ALPHA 0x84E9
+#define GL_COMPRESSED_LUMINANCE 0x84EA
+#define GL_COMPRESSED_LUMINANCE_ALPHA 0x84EB
+#define GL_COMPRESSED_INTENSITY 0x84EC
+#define GL_COMBINE 0x8570
+#define GL_COMBINE_RGB 0x8571
+#define GL_COMBINE_ALPHA 0x8572
+#define GL_SOURCE0_RGB 0x8580
+#define GL_SOURCE1_RGB 0x8581
+#define GL_SOURCE2_RGB 0x8582
+#define GL_SOURCE0_ALPHA 0x8588
+#define GL_SOURCE1_ALPHA 0x8589
+#define GL_SOURCE2_ALPHA 0x858A
+#define GL_OPERAND0_RGB 0x8590
+#define GL_OPERAND1_RGB 0x8591
+#define GL_OPERAND2_RGB 0x8592
+#define GL_OPERAND0_ALPHA 0x8598
+#define GL_OPERAND1_ALPHA 0x8599
+#define GL_OPERAND2_ALPHA 0x859A
+#define GL_RGB_SCALE 0x8573
+#define GL_ADD_SIGNED 0x8574
+#define GL_INTERPOLATE 0x8575
+#define GL_SUBTRACT 0x84E7
+#define GL_CONSTANT 0x8576
+#define GL_PRIMARY_COLOR 0x8577
+#define GL_PREVIOUS 0x8578
+#define GL_DOT3_RGB 0x86AE
+#define GL_DOT3_RGBA 0x86AF
+#define GL_BLEND_DST_RGB 0x80C8
+#define GL_BLEND_SRC_RGB 0x80C9
+#define GL_BLEND_DST_ALPHA 0x80CA
+#define GL_BLEND_SRC_ALPHA 0x80CB
+#define GL_POINT_FADE_THRESHOLD_SIZE 0x8128
+#define GL_DEPTH_COMPONENT16 0x81A5
+#define GL_DEPTH_COMPONENT24 0x81A6
+#define GL_DEPTH_COMPONENT32 0x81A7
+#define GL_MIRRORED_REPEAT 0x8370
+#define GL_MAX_TEXTURE_LOD_BIAS 0x84FD
+#define GL_TEXTURE_LOD_BIAS 0x8501
+#define GL_INCR_WRAP 0x8507
+#define GL_DECR_WRAP 0x8508
+#define GL_TEXTURE_DEPTH_SIZE 0x884A
+#define GL_TEXTURE_COMPARE_MODE 0x884C
+#define GL_TEXTURE_COMPARE_FUNC 0x884D
+#define GL_POINT_SIZE_MIN 0x8126
+#define GL_POINT_SIZE_MAX 0x8127
+#define GL_POINT_DISTANCE_ATTENUATION 0x8129
+#define GL_GENERATE_MIPMAP 0x8191
+#define GL_GENERATE_MIPMAP_HINT 0x8192
+#define GL_FOG_COORDINATE_SOURCE 0x8450
+#define GL_FOG_COORDINATE 0x8451
+#define GL_FRAGMENT_DEPTH 0x8452
+#define GL_CURRENT_FOG_COORDINATE 0x8453
+#define GL_FOG_COORDINATE_ARRAY_TYPE 0x8454
+#define GL_FOG_COORDINATE_ARRAY_STRIDE 0x8455
+#define GL_FOG_COORDINATE_ARRAY_POINTER 0x8456
+#define GL_FOG_COORDINATE_ARRAY 0x8457
+#define GL_COLOR_SUM 0x8458
+#define GL_CURRENT_SECONDARY_COLOR 0x8459
+#define GL_SECONDARY_COLOR_ARRAY_SIZE 0x845A
+#define GL_SECONDARY_COLOR_ARRAY_TYPE 0x845B
+#define GL_SECONDARY_COLOR_ARRAY_STRIDE 0x845C
+#define GL_SECONDARY_COLOR_ARRAY_POINTER 0x845D
+#define GL_SECONDARY_COLOR_ARRAY 0x845E
+#define GL_TEXTURE_FILTER_CONTROL 0x8500
+#define GL_DEPTH_TEXTURE_MODE 0x884B
+#define GL_COMPARE_R_TO_TEXTURE 0x884E
+#define GL_BLEND_COLOR 0x8005
+#define GL_BLEND_EQUATION 0x8009
+#define GL_CONSTANT_COLOR 0x8001
+#define GL_ONE_MINUS_CONSTANT_COLOR 0x8002
+#define GL_CONSTANT_ALPHA 0x8003
+#define GL_ONE_MINUS_CONSTANT_ALPHA 0x8004
+#define GL_FUNC_ADD 0x8006
+#define GL_FUNC_REVERSE_SUBTRACT 0x800B
+#define GL_FUNC_SUBTRACT 0x800A
+#define GL_MIN 0x8007
+#define GL_MAX 0x8008
+#define GL_BUFFER_SIZE 0x8764
+#define GL_BUFFER_USAGE 0x8765
+#define GL_QUERY_COUNTER_BITS 0x8864
+#define GL_CURRENT_QUERY 0x8865
+#define GL_QUERY_RESULT 0x8866
+#define GL_QUERY_RESULT_AVAILABLE 0x8867
+#define GL_ARRAY_BUFFER 0x8892
+#define GL_ELEMENT_ARRAY_BUFFER 0x8893
+#define GL_ARRAY_BUFFER_BINDING 0x8894
+#define GL_ELEMENT_ARRAY_BUFFER_BINDING 0x8895
+#define GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING 0x889F
+#define GL_READ_ONLY 0x88B8
+#define GL_WRITE_ONLY 0x88B9
+#define GL_READ_WRITE 0x88BA
+#define GL_BUFFER_ACCESS 0x88BB
+#define GL_BUFFER_MAPPED 0x88BC
+#define GL_BUFFER_MAP_POINTER 0x88BD
+#define GL_STREAM_DRAW 0x88E0
+#define GL_STREAM_READ 0x88E1
+#define GL_STREAM_COPY 0x88E2
+#define GL_STATIC_DRAW 0x88E4
+#define GL_STATIC_READ 0x88E5
+#define GL_STATIC_COPY 0x88E6
+#define GL_DYNAMIC_DRAW 0x88E8
+#define GL_DYNAMIC_READ 0x88E9
+#define GL_DYNAMIC_COPY 0x88EA
+#define GL_SAMPLES_PASSED 0x8914
+#define GL_SRC1_ALPHA 0x8589
+#define GL_VERTEX_ARRAY_BUFFER_BINDING 0x8896
+#define GL_NORMAL_ARRAY_BUFFER_BINDING 0x8897
+#define GL_COLOR_ARRAY_BUFFER_BINDING 0x8898
+#define GL_INDEX_ARRAY_BUFFER_BINDING 0x8899
+#define GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING 0x889A
+#define GL_EDGE_FLAG_ARRAY_BUFFER_BINDING 0x889B
+#define GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING 0x889C
+#define GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING 0x889D
+#define GL_WEIGHT_ARRAY_BUFFER_BINDING 0x889E
+#define GL_FOG_COORD_SRC 0x8450
+#define GL_FOG_COORD 0x8451
+#define GL_CURRENT_FOG_COORD 0x8453
+#define GL_FOG_COORD_ARRAY_TYPE 0x8454
+#define GL_FOG_COORD_ARRAY_STRIDE 0x8455
+#define GL_FOG_COORD_ARRAY_POINTER 0x8456
+#define GL_FOG_COORD_ARRAY 0x8457
+#define GL_FOG_COORD_ARRAY_BUFFER_BINDING 0x889D
+#define GL_SRC0_RGB 0x8580
+#define GL_SRC1_RGB 0x8581
+#define GL_SRC2_RGB 0x8582
+#define GL_SRC0_ALPHA 0x8588
+#define GL_SRC2_ALPHA 0x858A
+#define GL_BLEND_EQUATION_RGB 0x8009
+#define GL_VERTEX_ATTRIB_ARRAY_ENABLED 0x8622
+#define GL_VERTEX_ATTRIB_ARRAY_SIZE 0x8623
+#define GL_VERTEX_ATTRIB_ARRAY_STRIDE 0x8624
+#define GL_VERTEX_ATTRIB_ARRAY_TYPE 0x8625
+#define GL_CURRENT_VERTEX_ATTRIB 0x8626
+#define GL_VERTEX_PROGRAM_POINT_SIZE 0x8642
+#define GL_VERTEX_ATTRIB_ARRAY_POINTER 0x8645
+#define GL_STENCIL_BACK_FUNC 0x8800
+#define GL_STENCIL_BACK_FAIL 0x8801
+#define GL_STENCIL_BACK_PASS_DEPTH_FAIL 0x8802
+#define GL_STENCIL_BACK_PASS_DEPTH_PASS 0x8803
+#define GL_MAX_DRAW_BUFFERS 0x8824
+#define GL_DRAW_BUFFER0 0x8825
+#define GL_DRAW_BUFFER1 0x8826
+#define GL_DRAW_BUFFER2 0x8827
+#define GL_DRAW_BUFFER3 0x8828
+#define GL_DRAW_BUFFER4 0x8829
+#define GL_DRAW_BUFFER5 0x882A
+#define GL_DRAW_BUFFER6 0x882B
+#define GL_DRAW_BUFFER7 0x882C
+#define GL_DRAW_BUFFER8 0x882D
+#define GL_DRAW_BUFFER9 0x882E
+#define GL_DRAW_BUFFER10 0x882F
+#define GL_DRAW_BUFFER11 0x8830
+#define GL_DRAW_BUFFER12 0x8831
+#define GL_DRAW_BUFFER13 0x8832
+#define GL_DRAW_BUFFER14 0x8833
+#define GL_DRAW_BUFFER15 0x8834
+#define GL_BLEND_EQUATION_ALPHA 0x883D
+#define GL_MAX_VERTEX_ATTRIBS 0x8869
+#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A
+#define GL_MAX_TEXTURE_IMAGE_UNITS 0x8872
+#define GL_FRAGMENT_SHADER 0x8B30
+#define GL_VERTEX_SHADER 0x8B31
+#define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS 0x8B49
+#define GL_MAX_VERTEX_UNIFORM_COMPONENTS 0x8B4A
+#define GL_MAX_VARYING_FLOATS 0x8B4B
+#define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS 0x8B4C
+#define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS 0x8B4D
+#define GL_SHADER_TYPE 0x8B4F
+#define GL_FLOAT_VEC2 0x8B50
+#define GL_FLOAT_VEC3 0x8B51
+#define GL_FLOAT_VEC4 0x8B52
+#define GL_INT_VEC2 0x8B53
+#define GL_INT_VEC3 0x8B54
+#define GL_INT_VEC4 0x8B55
+#define GL_BOOL 0x8B56
+#define GL_BOOL_VEC2 0x8B57
+#define GL_BOOL_VEC3 0x8B58
+#define GL_BOOL_VEC4 0x8B59
+#define GL_FLOAT_MAT2 0x8B5A
+#define GL_FLOAT_MAT3 0x8B5B
+#define GL_FLOAT_MAT4 0x8B5C
+#define GL_SAMPLER_1D 0x8B5D
+#define GL_SAMPLER_2D 0x8B5E
+#define GL_SAMPLER_3D 0x8B5F
+#define GL_SAMPLER_CUBE 0x8B60
+#define GL_SAMPLER_1D_SHADOW 0x8B61
+#define GL_SAMPLER_2D_SHADOW 0x8B62
+#define GL_DELETE_STATUS 0x8B80
+#define GL_COMPILE_STATUS 0x8B81
+#define GL_LINK_STATUS 0x8B82
+#define GL_VALIDATE_STATUS 0x8B83
+#define GL_INFO_LOG_LENGTH 0x8B84
+#define GL_ATTACHED_SHADERS 0x8B85
+#define GL_ACTIVE_UNIFORMS 0x8B86
+#define GL_ACTIVE_UNIFORM_MAX_LENGTH 0x8B87
+#define GL_SHADER_SOURCE_LENGTH 0x8B88
+#define GL_ACTIVE_ATTRIBUTES 0x8B89
+#define GL_ACTIVE_ATTRIBUTE_MAX_LENGTH 0x8B8A
+#define GL_FRAGMENT_SHADER_DERIVATIVE_HINT 0x8B8B
+#define GL_SHADING_LANGUAGE_VERSION 0x8B8C
+#define GL_CURRENT_PROGRAM 0x8B8D
+#define GL_POINT_SPRITE_COORD_ORIGIN 0x8CA0
+#define GL_LOWER_LEFT 0x8CA1
+#define GL_UPPER_LEFT 0x8CA2
+#define GL_STENCIL_BACK_REF 0x8CA3
+#define GL_STENCIL_BACK_VALUE_MASK 0x8CA4
+#define GL_STENCIL_BACK_WRITEMASK 0x8CA5
+#define GL_VERTEX_PROGRAM_TWO_SIDE 0x8643
+#define GL_POINT_SPRITE 0x8861
+#define GL_COORD_REPLACE 0x8862
+#define GL_MAX_TEXTURE_COORDS 0x8871
+#define GL_PIXEL_PACK_BUFFER 0x88EB
+#define GL_PIXEL_UNPACK_BUFFER 0x88EC
+#define GL_PIXEL_PACK_BUFFER_BINDING 0x88ED
+#define GL_PIXEL_UNPACK_BUFFER_BINDING 0x88EF
+#define GL_FLOAT_MAT2x3 0x8B65
+#define GL_FLOAT_MAT2x4 0x8B66
+#define GL_FLOAT_MAT3x2 0x8B67
+#define GL_FLOAT_MAT3x4 0x8B68
+#define GL_FLOAT_MAT4x2 0x8B69
+#define GL_FLOAT_MAT4x3 0x8B6A
+#define GL_SRGB 0x8C40
+#define GL_SRGB8 0x8C41
+#define GL_SRGB_ALPHA 0x8C42
+#define GL_SRGB8_ALPHA8 0x8C43
+#define GL_COMPRESSED_SRGB 0x8C48
+#define GL_COMPRESSED_SRGB_ALPHA 0x8C49
+#define GL_CURRENT_RASTER_SECONDARY_COLOR 0x845F
+#define GL_SLUMINANCE_ALPHA 0x8C44
+#define GL_SLUMINANCE8_ALPHA8 0x8C45
+#define GL_SLUMINANCE 0x8C46
+#define GL_SLUMINANCE8 0x8C47
+#define GL_COMPRESSED_SLUMINANCE 0x8C4A
+#define GL_COMPRESSED_SLUMINANCE_ALPHA 0x8C4B
+#define GL_COMPARE_REF_TO_TEXTURE 0x884E
+#define GL_CLIP_DISTANCE0 0x3000
+#define GL_CLIP_DISTANCE1 0x3001
+#define GL_CLIP_DISTANCE2 0x3002
+#define GL_CLIP_DISTANCE3 0x3003
+#define GL_CLIP_DISTANCE4 0x3004
+#define GL_CLIP_DISTANCE5 0x3005
+#define GL_CLIP_DISTANCE6 0x3006
+#define GL_CLIP_DISTANCE7 0x3007
+#define GL_MAX_CLIP_DISTANCES 0x0D32
+#define GL_MAJOR_VERSION 0x821B
+#define GL_MINOR_VERSION 0x821C
+#define GL_NUM_EXTENSIONS 0x821D
+#define GL_CONTEXT_FLAGS 0x821E
+#define GL_COMPRESSED_RED 0x8225
+#define GL_COMPRESSED_RG 0x8226
+#define GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT 0x00000001
+#define GL_RGBA32F 0x8814
+#define GL_RGB32F 0x8815
+#define GL_RGBA16F 0x881A
+#define GL_RGB16F 0x881B
+#define GL_VERTEX_ATTRIB_ARRAY_INTEGER 0x88FD
+#define GL_MAX_ARRAY_TEXTURE_LAYERS 0x88FF
+#define GL_MIN_PROGRAM_TEXEL_OFFSET 0x8904
+#define GL_MAX_PROGRAM_TEXEL_OFFSET 0x8905
+#define GL_CLAMP_READ_COLOR 0x891C
+#define GL_FIXED_ONLY 0x891D
+#define GL_MAX_VARYING_COMPONENTS 0x8B4B
+#define GL_TEXTURE_1D_ARRAY 0x8C18
+#define GL_PROXY_TEXTURE_1D_ARRAY 0x8C19
+#define GL_TEXTURE_2D_ARRAY 0x8C1A
+#define GL_PROXY_TEXTURE_2D_ARRAY 0x8C1B
+#define GL_TEXTURE_BINDING_1D_ARRAY 0x8C1C
+#define GL_TEXTURE_BINDING_2D_ARRAY 0x8C1D
+#define GL_R11F_G11F_B10F 0x8C3A
+#define GL_UNSIGNED_INT_10F_11F_11F_REV 0x8C3B
+#define GL_RGB9_E5 0x8C3D
+#define GL_UNSIGNED_INT_5_9_9_9_REV 0x8C3E
+#define GL_TEXTURE_SHARED_SIZE 0x8C3F
+#define GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH 0x8C76
+#define GL_TRANSFORM_FEEDBACK_BUFFER_MODE 0x8C7F
+#define GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS 0x8C80
+#define GL_TRANSFORM_FEEDBACK_VARYINGS 0x8C83
+#define GL_TRANSFORM_FEEDBACK_BUFFER_START 0x8C84
+#define GL_TRANSFORM_FEEDBACK_BUFFER_SIZE 0x8C85
+#define GL_PRIMITIVES_GENERATED 0x8C87
+#define GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN 0x8C88
+#define GL_RASTERIZER_DISCARD 0x8C89
+#define GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS 0x8C8A
+#define GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS 0x8C8B
+#define GL_INTERLEAVED_ATTRIBS 0x8C8C
+#define GL_SEPARATE_ATTRIBS 0x8C8D
+#define GL_TRANSFORM_FEEDBACK_BUFFER 0x8C8E
+#define GL_TRANSFORM_FEEDBACK_BUFFER_BINDING 0x8C8F
+#define GL_RGBA32UI 0x8D70
+#define GL_RGB32UI 0x8D71
+#define GL_RGBA16UI 0x8D76
+#define GL_RGB16UI 0x8D77
+#define GL_RGBA8UI 0x8D7C
+#define GL_RGB8UI 0x8D7D
+#define GL_RGBA32I 0x8D82
+#define GL_RGB32I 0x8D83
+#define GL_RGBA16I 0x8D88
+#define GL_RGB16I 0x8D89
+#define GL_RGBA8I 0x8D8E
+#define GL_RGB8I 0x8D8F
+#define GL_RED_INTEGER 0x8D94
+#define GL_GREEN_INTEGER 0x8D95
+#define GL_BLUE_INTEGER 0x8D96
+#define GL_RGB_INTEGER 0x8D98
+#define GL_RGBA_INTEGER 0x8D99
+#define GL_BGR_INTEGER 0x8D9A
+#define GL_BGRA_INTEGER 0x8D9B
+#define GL_SAMPLER_1D_ARRAY 0x8DC0
+#define GL_SAMPLER_2D_ARRAY 0x8DC1
+#define GL_SAMPLER_1D_ARRAY_SHADOW 0x8DC3
+#define GL_SAMPLER_2D_ARRAY_SHADOW 0x8DC4
+#define GL_SAMPLER_CUBE_SHADOW 0x8DC5
+#define GL_UNSIGNED_INT_VEC2 0x8DC6
+#define GL_UNSIGNED_INT_VEC3 0x8DC7
+#define GL_UNSIGNED_INT_VEC4 0x8DC8
+#define GL_INT_SAMPLER_1D 0x8DC9
+#define GL_INT_SAMPLER_2D 0x8DCA
+#define GL_INT_SAMPLER_3D 0x8DCB
+#define GL_INT_SAMPLER_CUBE 0x8DCC
+#define GL_INT_SAMPLER_1D_ARRAY 0x8DCE
+#define GL_INT_SAMPLER_2D_ARRAY 0x8DCF
+#define GL_UNSIGNED_INT_SAMPLER_1D 0x8DD1
+#define GL_UNSIGNED_INT_SAMPLER_2D 0x8DD2
+#define GL_UNSIGNED_INT_SAMPLER_3D 0x8DD3
+#define GL_UNSIGNED_INT_SAMPLER_CUBE 0x8DD4
+#define GL_UNSIGNED_INT_SAMPLER_1D_ARRAY 0x8DD6
+#define GL_UNSIGNED_INT_SAMPLER_2D_ARRAY 0x8DD7
+#define GL_QUERY_WAIT 0x8E13
+#define GL_QUERY_NO_WAIT 0x8E14
+#define GL_QUERY_BY_REGION_WAIT 0x8E15
+#define GL_QUERY_BY_REGION_NO_WAIT 0x8E16
+#define GL_BUFFER_ACCESS_FLAGS 0x911F
+#define GL_BUFFER_MAP_LENGTH 0x9120
+#define GL_BUFFER_MAP_OFFSET 0x9121
+#define GL_DEPTH_COMPONENT32F 0x8CAC
+#define GL_DEPTH32F_STENCIL8 0x8CAD
+#define GL_FLOAT_32_UNSIGNED_INT_24_8_REV 0x8DAD
+#define GL_INVALID_FRAMEBUFFER_OPERATION 0x0506
+#define GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING 0x8210
+#define GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE 0x8211
+#define GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE 0x8212
+#define GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE 0x8213
+#define GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE 0x8214
+#define GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE 0x8215
+#define GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE 0x8216
+#define GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE 0x8217
+#define GL_FRAMEBUFFER_DEFAULT 0x8218
+#define GL_FRAMEBUFFER_UNDEFINED 0x8219
+#define GL_DEPTH_STENCIL_ATTACHMENT 0x821A
+#define GL_MAX_RENDERBUFFER_SIZE 0x84E8
+#define GL_DEPTH_STENCIL 0x84F9
+#define GL_UNSIGNED_INT_24_8 0x84FA
+#define GL_DEPTH24_STENCIL8 0x88F0
+#define GL_TEXTURE_STENCIL_SIZE 0x88F1
+#define GL_TEXTURE_RED_TYPE 0x8C10
+#define GL_TEXTURE_GREEN_TYPE 0x8C11
+#define GL_TEXTURE_BLUE_TYPE 0x8C12
+#define GL_TEXTURE_ALPHA_TYPE 0x8C13
+#define GL_TEXTURE_DEPTH_TYPE 0x8C16
+#define GL_UNSIGNED_NORMALIZED 0x8C17
+#define GL_FRAMEBUFFER_BINDING 0x8CA6
+#define GL_DRAW_FRAMEBUFFER_BINDING 0x8CA6
+#define GL_RENDERBUFFER_BINDING 0x8CA7
+#define GL_READ_FRAMEBUFFER 0x8CA8
+#define GL_DRAW_FRAMEBUFFER 0x8CA9
+#define GL_READ_FRAMEBUFFER_BINDING 0x8CAA
+#define GL_RENDERBUFFER_SAMPLES 0x8CAB
+#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE 0x8CD0
+#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME 0x8CD1
+#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL 0x8CD2
+#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE 0x8CD3
+#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER 0x8CD4
+#define GL_FRAMEBUFFER_COMPLETE 0x8CD5
+#define GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT 0x8CD6
+#define GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT 0x8CD7
+#define GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER 0x8CDB
+#define GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER 0x8CDC
+#define GL_FRAMEBUFFER_UNSUPPORTED 0x8CDD
+#define GL_MAX_COLOR_ATTACHMENTS 0x8CDF
+#define GL_COLOR_ATTACHMENT0 0x8CE0
+#define GL_COLOR_ATTACHMENT1 0x8CE1
+#define GL_COLOR_ATTACHMENT2 0x8CE2
+#define GL_COLOR_ATTACHMENT3 0x8CE3
+#define GL_COLOR_ATTACHMENT4 0x8CE4
+#define GL_COLOR_ATTACHMENT5 0x8CE5
+#define GL_COLOR_ATTACHMENT6 0x8CE6
+#define GL_COLOR_ATTACHMENT7 0x8CE7
+#define GL_COLOR_ATTACHMENT8 0x8CE8
+#define GL_COLOR_ATTACHMENT9 0x8CE9
+#define GL_COLOR_ATTACHMENT10 0x8CEA
+#define GL_COLOR_ATTACHMENT11 0x8CEB
+#define GL_COLOR_ATTACHMENT12 0x8CEC
+#define GL_COLOR_ATTACHMENT13 0x8CED
+#define GL_COLOR_ATTACHMENT14 0x8CEE
+#define GL_COLOR_ATTACHMENT15 0x8CEF
+#define GL_COLOR_ATTACHMENT16 0x8CF0
+#define GL_COLOR_ATTACHMENT17 0x8CF1
+#define GL_COLOR_ATTACHMENT18 0x8CF2
+#define GL_COLOR_ATTACHMENT19 0x8CF3
+#define GL_COLOR_ATTACHMENT20 0x8CF4
+#define GL_COLOR_ATTACHMENT21 0x8CF5
+#define GL_COLOR_ATTACHMENT22 0x8CF6
+#define GL_COLOR_ATTACHMENT23 0x8CF7
+#define GL_COLOR_ATTACHMENT24 0x8CF8
+#define GL_COLOR_ATTACHMENT25 0x8CF9
+#define GL_COLOR_ATTACHMENT26 0x8CFA
+#define GL_COLOR_ATTACHMENT27 0x8CFB
+#define GL_COLOR_ATTACHMENT28 0x8CFC
+#define GL_COLOR_ATTACHMENT29 0x8CFD
+#define GL_COLOR_ATTACHMENT30 0x8CFE
+#define GL_COLOR_ATTACHMENT31 0x8CFF
+#define GL_DEPTH_ATTACHMENT 0x8D00
+#define GL_STENCIL_ATTACHMENT 0x8D20
+#define GL_FRAMEBUFFER 0x8D40
+#define GL_RENDERBUFFER 0x8D41
+#define GL_RENDERBUFFER_WIDTH 0x8D42
+#define GL_RENDERBUFFER_HEIGHT 0x8D43
+#define GL_RENDERBUFFER_INTERNAL_FORMAT 0x8D44
+#define GL_STENCIL_INDEX1 0x8D46
+#define GL_STENCIL_INDEX4 0x8D47
+#define GL_STENCIL_INDEX8 0x8D48
+#define GL_STENCIL_INDEX16 0x8D49
+#define GL_RENDERBUFFER_RED_SIZE 0x8D50
+#define GL_RENDERBUFFER_GREEN_SIZE 0x8D51
+#define GL_RENDERBUFFER_BLUE_SIZE 0x8D52
+#define GL_RENDERBUFFER_ALPHA_SIZE 0x8D53
+#define GL_RENDERBUFFER_DEPTH_SIZE 0x8D54
+#define GL_RENDERBUFFER_STENCIL_SIZE 0x8D55
+#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE 0x8D56
+#define GL_MAX_SAMPLES 0x8D57
+#define GL_INDEX 0x8222
+#define GL_TEXTURE_LUMINANCE_TYPE 0x8C14
+#define GL_TEXTURE_INTENSITY_TYPE 0x8C15
+#define GL_FRAMEBUFFER_SRGB 0x8DB9
+#define GL_HALF_FLOAT 0x140B
+#define GL_MAP_READ_BIT 0x0001
+#define GL_MAP_WRITE_BIT 0x0002
+#define GL_MAP_INVALIDATE_RANGE_BIT 0x0004
+#define GL_MAP_INVALIDATE_BUFFER_BIT 0x0008
+#define GL_MAP_FLUSH_EXPLICIT_BIT 0x0010
+#define GL_MAP_UNSYNCHRONIZED_BIT 0x0020
+#define GL_COMPRESSED_RED_RGTC1 0x8DBB
+#define GL_COMPRESSED_SIGNED_RED_RGTC1 0x8DBC
+#define GL_COMPRESSED_RG_RGTC2 0x8DBD
+#define GL_COMPRESSED_SIGNED_RG_RGTC2 0x8DBE
+#define GL_RG 0x8227
+#define GL_RG_INTEGER 0x8228
+#define GL_R8 0x8229
+#define GL_R16 0x822A
+#define GL_RG8 0x822B
+#define GL_RG16 0x822C
+#define GL_R16F 0x822D
+#define GL_R32F 0x822E
+#define GL_RG16F 0x822F
+#define GL_RG32F 0x8230
+#define GL_R8I 0x8231
+#define GL_R8UI 0x8232
+#define GL_R16I 0x8233
+#define GL_R16UI 0x8234
+#define GL_R32I 0x8235
+#define GL_R32UI 0x8236
+#define GL_RG8I 0x8237
+#define GL_RG8UI 0x8238
+#define GL_RG16I 0x8239
+#define GL_RG16UI 0x823A
+#define GL_RG32I 0x823B
+#define GL_RG32UI 0x823C
+#define GL_VERTEX_ARRAY_BINDING 0x85B5
+#define GL_CLAMP_VERTEX_COLOR 0x891A
+#define GL_CLAMP_FRAGMENT_COLOR 0x891B
+#define GL_ALPHA_INTEGER 0x8D97
+#define GL_SAMPLER_2D_RECT 0x8B63
+#define GL_SAMPLER_2D_RECT_SHADOW 0x8B64
+#define GL_SAMPLER_BUFFER 0x8DC2
+#define GL_INT_SAMPLER_2D_RECT 0x8DCD
+#define GL_INT_SAMPLER_BUFFER 0x8DD0
+#define GL_UNSIGNED_INT_SAMPLER_2D_RECT 0x8DD5
+#define GL_UNSIGNED_INT_SAMPLER_BUFFER 0x8DD8
+#define GL_TEXTURE_BUFFER 0x8C2A
+#define GL_MAX_TEXTURE_BUFFER_SIZE 0x8C2B
+#define GL_TEXTURE_BINDING_BUFFER 0x8C2C
+#define GL_TEXTURE_BUFFER_DATA_STORE_BINDING 0x8C2D
+#define GL_TEXTURE_RECTANGLE 0x84F5
+#define GL_TEXTURE_BINDING_RECTANGLE 0x84F6
+#define GL_PROXY_TEXTURE_RECTANGLE 0x84F7
+#define GL_MAX_RECTANGLE_TEXTURE_SIZE 0x84F8
+#define GL_R8_SNORM 0x8F94
+#define GL_RG8_SNORM 0x8F95
+#define GL_RGB8_SNORM 0x8F96
+#define GL_RGBA8_SNORM 0x8F97
+#define GL_R16_SNORM 0x8F98
+#define GL_RG16_SNORM 0x8F99
+#define GL_RGB16_SNORM 0x8F9A
+#define GL_RGBA16_SNORM 0x8F9B
+#define GL_SIGNED_NORMALIZED 0x8F9C
+#define GL_PRIMITIVE_RESTART 0x8F9D
+#define GL_PRIMITIVE_RESTART_INDEX 0x8F9E
+#define GL_COPY_READ_BUFFER 0x8F36
+#define GL_COPY_WRITE_BUFFER 0x8F37
+#define GL_UNIFORM_BUFFER 0x8A11
+#define GL_UNIFORM_BUFFER_BINDING 0x8A28
+#define GL_UNIFORM_BUFFER_START 0x8A29
+#define GL_UNIFORM_BUFFER_SIZE 0x8A2A
+#define GL_MAX_VERTEX_UNIFORM_BLOCKS 0x8A2B
+#define GL_MAX_GEOMETRY_UNIFORM_BLOCKS 0x8A2C
+#define GL_MAX_FRAGMENT_UNIFORM_BLOCKS 0x8A2D
+#define GL_MAX_COMBINED_UNIFORM_BLOCKS 0x8A2E
+#define GL_MAX_UNIFORM_BUFFER_BINDINGS 0x8A2F
+#define GL_MAX_UNIFORM_BLOCK_SIZE 0x8A30
+#define GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS 0x8A31
+#define GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS 0x8A32
+#define GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS 0x8A33
+#define GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT 0x8A34
+#define GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH 0x8A35
+#define GL_ACTIVE_UNIFORM_BLOCKS 0x8A36
+#define GL_UNIFORM_TYPE 0x8A37
+#define GL_UNIFORM_SIZE 0x8A38
+#define GL_UNIFORM_NAME_LENGTH 0x8A39
+#define GL_UNIFORM_BLOCK_INDEX 0x8A3A
+#define GL_UNIFORM_OFFSET 0x8A3B
+#define GL_UNIFORM_ARRAY_STRIDE 0x8A3C
+#define GL_UNIFORM_MATRIX_STRIDE 0x8A3D
+#define GL_UNIFORM_IS_ROW_MAJOR 0x8A3E
+#define GL_UNIFORM_BLOCK_BINDING 0x8A3F
+#define GL_UNIFORM_BLOCK_DATA_SIZE 0x8A40
+#define GL_UNIFORM_BLOCK_NAME_LENGTH 0x8A41
+#define GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS 0x8A42
+#define GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES 0x8A43
+#define GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER 0x8A44
+#define GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER 0x8A45
+#define GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER 0x8A46
+#define GL_INVALID_INDEX 0xFFFFFFFF
+#define GL_CONTEXT_CORE_PROFILE_BIT 0x00000001
+#define GL_CONTEXT_COMPATIBILITY_PROFILE_BIT 0x00000002
+#define GL_LINES_ADJACENCY 0x000A
+#define GL_LINE_STRIP_ADJACENCY 0x000B
+#define GL_TRIANGLES_ADJACENCY 0x000C
+#define GL_TRIANGLE_STRIP_ADJACENCY 0x000D
+#define GL_PROGRAM_POINT_SIZE 0x8642
+#define GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS 0x8C29
+#define GL_FRAMEBUFFER_ATTACHMENT_LAYERED 0x8DA7
+#define GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS 0x8DA8
+#define GL_GEOMETRY_SHADER 0x8DD9
+#define GL_GEOMETRY_VERTICES_OUT 0x8916
+#define GL_GEOMETRY_INPUT_TYPE 0x8917
+#define GL_GEOMETRY_OUTPUT_TYPE 0x8918
+#define GL_MAX_GEOMETRY_UNIFORM_COMPONENTS 0x8DDF
+#define GL_MAX_GEOMETRY_OUTPUT_VERTICES 0x8DE0
+#define GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS 0x8DE1
+#define GL_MAX_VERTEX_OUTPUT_COMPONENTS 0x9122
+#define GL_MAX_GEOMETRY_INPUT_COMPONENTS 0x9123
+#define GL_MAX_GEOMETRY_OUTPUT_COMPONENTS 0x9124
+#define GL_MAX_FRAGMENT_INPUT_COMPONENTS 0x9125
+#define GL_CONTEXT_PROFILE_MASK 0x9126
+#define GL_DEPTH_CLAMP 0x864F
+#define GL_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION 0x8E4C
+#define GL_FIRST_VERTEX_CONVENTION 0x8E4D
+#define GL_LAST_VERTEX_CONVENTION 0x8E4E
+#define GL_PROVOKING_VERTEX 0x8E4F
+#define GL_TEXTURE_CUBE_MAP_SEAMLESS 0x884F
+#define GL_MAX_SERVER_WAIT_TIMEOUT 0x9111
+#define GL_OBJECT_TYPE 0x9112
+#define GL_SYNC_CONDITION 0x9113
+#define GL_SYNC_STATUS 0x9114
+#define GL_SYNC_FLAGS 0x9115
+#define GL_SYNC_FENCE 0x9116
+#define GL_SYNC_GPU_COMMANDS_COMPLETE 0x9117
+#define GL_UNSIGNALED 0x9118
+#define GL_SIGNALED 0x9119
+#define GL_ALREADY_SIGNALED 0x911A
+#define GL_TIMEOUT_EXPIRED 0x911B
+#define GL_CONDITION_SATISFIED 0x911C
+#define GL_WAIT_FAILED 0x911D
+#define GL_TIMEOUT_IGNORED 0xFFFFFFFFFFFFFFFF
+#define GL_SYNC_FLUSH_COMMANDS_BIT 0x00000001
+#define GL_SAMPLE_POSITION 0x8E50
+#define GL_SAMPLE_MASK 0x8E51
+#define GL_SAMPLE_MASK_VALUE 0x8E52
+#define GL_MAX_SAMPLE_MASK_WORDS 0x8E59
+#define GL_TEXTURE_2D_MULTISAMPLE 0x9100
+#define GL_PROXY_TEXTURE_2D_MULTISAMPLE 0x9101
+#define GL_TEXTURE_2D_MULTISAMPLE_ARRAY 0x9102
+#define GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY 0x9103
+#define GL_TEXTURE_BINDING_2D_MULTISAMPLE 0x9104
+#define GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY 0x9105
+#define GL_TEXTURE_SAMPLES 0x9106
+#define GL_TEXTURE_FIXED_SAMPLE_LOCATIONS 0x9107
+#define GL_SAMPLER_2D_MULTISAMPLE 0x9108
+#define GL_INT_SAMPLER_2D_MULTISAMPLE 0x9109
+#define GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE 0x910A
+#define GL_SAMPLER_2D_MULTISAMPLE_ARRAY 0x910B
+#define GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY 0x910C
+#define GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY 0x910D
+#define GL_MAX_COLOR_TEXTURE_SAMPLES 0x910E
+#define GL_MAX_DEPTH_TEXTURE_SAMPLES 0x910F
+#define GL_MAX_INTEGER_SAMPLES 0x9110
+#define GL_VERTEX_ATTRIB_ARRAY_DIVISOR 0x88FE
+#define GL_SRC1_COLOR 0x88F9
+#define GL_ONE_MINUS_SRC1_COLOR 0x88FA
+#define GL_ONE_MINUS_SRC1_ALPHA 0x88FB
+#define GL_MAX_DUAL_SOURCE_DRAW_BUFFERS 0x88FC
+#define GL_ANY_SAMPLES_PASSED 0x8C2F
+#define GL_SAMPLER_BINDING 0x8919
+#define GL_RGB10_A2UI 0x906F
+#define GL_TEXTURE_SWIZZLE_R 0x8E42
+#define GL_TEXTURE_SWIZZLE_G 0x8E43
+#define GL_TEXTURE_SWIZZLE_B 0x8E44
+#define GL_TEXTURE_SWIZZLE_A 0x8E45
+#define GL_TEXTURE_SWIZZLE_RGBA 0x8E46
+#define GL_TIME_ELAPSED 0x88BF
+#define GL_TIMESTAMP 0x8E28
+#define GL_INT_2_10_10_10_REV 0x8D9F
+#define GL_SAMPLE_SHADING 0x8C36
+#define GL_MIN_SAMPLE_SHADING_VALUE 0x8C37
+#define GL_MIN_PROGRAM_TEXTURE_GATHER_OFFSET 0x8E5E
+#define GL_MAX_PROGRAM_TEXTURE_GATHER_OFFSET 0x8E5F
+#define GL_TEXTURE_CUBE_MAP_ARRAY 0x9009
+#define GL_TEXTURE_BINDING_CUBE_MAP_ARRAY 0x900A
+#define GL_PROXY_TEXTURE_CUBE_MAP_ARRAY 0x900B
+#define GL_SAMPLER_CUBE_MAP_ARRAY 0x900C
+#define GL_SAMPLER_CUBE_MAP_ARRAY_SHADOW 0x900D
+#define GL_INT_SAMPLER_CUBE_MAP_ARRAY 0x900E
+#define GL_UNSIGNED_INT_SAMPLER_CUBE_MAP_ARRAY 0x900F
+#define GL_DRAW_INDIRECT_BUFFER 0x8F3F
+#define GL_DRAW_INDIRECT_BUFFER_BINDING 0x8F43
+#define GL_GEOMETRY_SHADER_INVOCATIONS 0x887F
+#define GL_MAX_GEOMETRY_SHADER_INVOCATIONS 0x8E5A
+#define GL_MIN_FRAGMENT_INTERPOLATION_OFFSET 0x8E5B
+#define GL_MAX_FRAGMENT_INTERPOLATION_OFFSET 0x8E5C
+#define GL_FRAGMENT_INTERPOLATION_OFFSET_BITS 0x8E5D
+#define GL_MAX_VERTEX_STREAMS 0x8E71
+#define GL_DOUBLE_VEC2 0x8FFC
+#define GL_DOUBLE_VEC3 0x8FFD
+#define GL_DOUBLE_VEC4 0x8FFE
+#define GL_DOUBLE_MAT2 0x8F46
+#define GL_DOUBLE_MAT3 0x8F47
+#define GL_DOUBLE_MAT4 0x8F48
+#define GL_DOUBLE_MAT2x3 0x8F49
+#define GL_DOUBLE_MAT2x4 0x8F4A
+#define GL_DOUBLE_MAT3x2 0x8F4B
+#define GL_DOUBLE_MAT3x4 0x8F4C
+#define GL_DOUBLE_MAT4x2 0x8F4D
+#define GL_DOUBLE_MAT4x3 0x8F4E
+#define GL_ACTIVE_SUBROUTINES 0x8DE5
+#define GL_ACTIVE_SUBROUTINE_UNIFORMS 0x8DE6
+#define GL_ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS 0x8E47
+#define GL_ACTIVE_SUBROUTINE_MAX_LENGTH 0x8E48
+#define GL_ACTIVE_SUBROUTINE_UNIFORM_MAX_LENGTH 0x8E49
+#define GL_MAX_SUBROUTINES 0x8DE7
+#define GL_MAX_SUBROUTINE_UNIFORM_LOCATIONS 0x8DE8
+#define GL_NUM_COMPATIBLE_SUBROUTINES 0x8E4A
+#define GL_COMPATIBLE_SUBROUTINES 0x8E4B
+#define GL_PATCHES 0x000E
+#define GL_PATCH_VERTICES 0x8E72
+#define GL_PATCH_DEFAULT_INNER_LEVEL 0x8E73
+#define GL_PATCH_DEFAULT_OUTER_LEVEL 0x8E74
+#define GL_TESS_CONTROL_OUTPUT_VERTICES 0x8E75
+#define GL_TESS_GEN_MODE 0x8E76
+#define GL_TESS_GEN_SPACING 0x8E77
+#define GL_TESS_GEN_VERTEX_ORDER 0x8E78
+#define GL_TESS_GEN_POINT_MODE 0x8E79
+#define GL_ISOLINES 0x8E7A
+#define GL_FRACTIONAL_ODD 0x8E7B
+#define GL_FRACTIONAL_EVEN 0x8E7C
+#define GL_MAX_PATCH_VERTICES 0x8E7D
+#define GL_MAX_TESS_GEN_LEVEL 0x8E7E
+#define GL_MAX_TESS_CONTROL_UNIFORM_COMPONENTS 0x8E7F
+#define GL_MAX_TESS_EVALUATION_UNIFORM_COMPONENTS 0x8E80
+#define GL_MAX_TESS_CONTROL_TEXTURE_IMAGE_UNITS 0x8E81
+#define GL_MAX_TESS_EVALUATION_TEXTURE_IMAGE_UNITS 0x8E82
+#define GL_MAX_TESS_CONTROL_OUTPUT_COMPONENTS 0x8E83
+#define GL_MAX_TESS_PATCH_COMPONENTS 0x8E84
+#define GL_MAX_TESS_CONTROL_TOTAL_OUTPUT_COMPONENTS 0x8E85
+#define GL_MAX_TESS_EVALUATION_OUTPUT_COMPONENTS 0x8E86
+#define GL_MAX_TESS_CONTROL_UNIFORM_BLOCKS 0x8E89
+#define GL_MAX_TESS_EVALUATION_UNIFORM_BLOCKS 0x8E8A
+#define GL_MAX_TESS_CONTROL_INPUT_COMPONENTS 0x886C
+#define GL_MAX_TESS_EVALUATION_INPUT_COMPONENTS 0x886D
+#define GL_MAX_COMBINED_TESS_CONTROL_UNIFORM_COMPONENTS 0x8E1E
+#define GL_MAX_COMBINED_TESS_EVALUATION_UNIFORM_COMPONENTS 0x8E1F
+#define GL_UNIFORM_BLOCK_REFERENCED_BY_TESS_CONTROL_SHADER 0x84F0
+#define GL_UNIFORM_BLOCK_REFERENCED_BY_TESS_EVALUATION_SHADER 0x84F1
+#define GL_TESS_EVALUATION_SHADER 0x8E87
+#define GL_TESS_CONTROL_SHADER 0x8E88
+#define GL_TRANSFORM_FEEDBACK 0x8E22
+#define GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED 0x8E23
+#define GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE 0x8E24
+#define GL_TRANSFORM_FEEDBACK_BINDING 0x8E25
+#define GL_MAX_TRANSFORM_FEEDBACK_BUFFERS 0x8E70
+#define GL_FIXED 0x140C
+#define GL_IMPLEMENTATION_COLOR_READ_TYPE 0x8B9A
+#define GL_IMPLEMENTATION_COLOR_READ_FORMAT 0x8B9B
+#define GL_LOW_FLOAT 0x8DF0
+#define GL_MEDIUM_FLOAT 0x8DF1
+#define GL_HIGH_FLOAT 0x8DF2
+#define GL_LOW_INT 0x8DF3
+#define GL_MEDIUM_INT 0x8DF4
+#define GL_HIGH_INT 0x8DF5
+#define GL_SHADER_COMPILER 0x8DFA
+#define GL_SHADER_BINARY_FORMATS 0x8DF8
+#define GL_NUM_SHADER_BINARY_FORMATS 0x8DF9
+#define GL_MAX_VERTEX_UNIFORM_VECTORS 0x8DFB
+#define GL_MAX_VARYING_VECTORS 0x8DFC
+#define GL_MAX_FRAGMENT_UNIFORM_VECTORS 0x8DFD
+#define GL_RGB565 0x8D62
+#define GL_PROGRAM_BINARY_RETRIEVABLE_HINT 0x8257
+#define GL_PROGRAM_BINARY_LENGTH 0x8741
+#define GL_NUM_PROGRAM_BINARY_FORMATS 0x87FE
+#define GL_PROGRAM_BINARY_FORMATS 0x87FF
+#define GL_VERTEX_SHADER_BIT 0x00000001
+#define GL_FRAGMENT_SHADER_BIT 0x00000002
+#define GL_GEOMETRY_SHADER_BIT 0x00000004
+#define GL_TESS_CONTROL_SHADER_BIT 0x00000008
+#define GL_TESS_EVALUATION_SHADER_BIT 0x00000010
+#define GL_ALL_SHADER_BITS 0xFFFFFFFF
+#define GL_PROGRAM_SEPARABLE 0x8258
+#define GL_ACTIVE_PROGRAM 0x8259
+#define GL_PROGRAM_PIPELINE_BINDING 0x825A
+#define GL_MAX_VIEWPORTS 0x825B
+#define GL_VIEWPORT_SUBPIXEL_BITS 0x825C
+#define GL_VIEWPORT_BOUNDS_RANGE 0x825D
+#define GL_LAYER_PROVOKING_VERTEX 0x825E
+#define GL_VIEWPORT_INDEX_PROVOKING_VERTEX 0x825F
+#define GL_UNDEFINED_VERTEX 0x8260
+#define GL_COPY_READ_BUFFER_BINDING 0x8F36
+#define GL_COPY_WRITE_BUFFER_BINDING 0x8F37
+#define GL_TRANSFORM_FEEDBACK_ACTIVE 0x8E24
+#define GL_TRANSFORM_FEEDBACK_PAUSED 0x8E23
+#define GL_UNPACK_COMPRESSED_BLOCK_WIDTH 0x9127
+#define GL_UNPACK_COMPRESSED_BLOCK_HEIGHT 0x9128
+#define GL_UNPACK_COMPRESSED_BLOCK_DEPTH 0x9129
+#define GL_UNPACK_COMPRESSED_BLOCK_SIZE 0x912A
+#define GL_PACK_COMPRESSED_BLOCK_WIDTH 0x912B
+#define GL_PACK_COMPRESSED_BLOCK_HEIGHT 0x912C
+#define GL_PACK_COMPRESSED_BLOCK_DEPTH 0x912D
+#define GL_PACK_COMPRESSED_BLOCK_SIZE 0x912E
+#define GL_NUM_SAMPLE_COUNTS 0x9380
+#define GL_MIN_MAP_BUFFER_ALIGNMENT 0x90BC
+#define GL_ATOMIC_COUNTER_BUFFER 0x92C0
+#define GL_ATOMIC_COUNTER_BUFFER_BINDING 0x92C1
+#define GL_ATOMIC_COUNTER_BUFFER_START 0x92C2
+#define GL_ATOMIC_COUNTER_BUFFER_SIZE 0x92C3
+#define GL_ATOMIC_COUNTER_BUFFER_DATA_SIZE 0x92C4
+#define GL_ATOMIC_COUNTER_BUFFER_ACTIVE_ATOMIC_COUNTERS 0x92C5
+#define GL_ATOMIC_COUNTER_BUFFER_ACTIVE_ATOMIC_COUNTER_INDICES 0x92C6
+#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_VERTEX_SHADER 0x92C7
+#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_TESS_CONTROL_SHADER 0x92C8
+#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_TESS_EVALUATION_SHADER 0x92C9
+#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_GEOMETRY_SHADER 0x92CA
+#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_FRAGMENT_SHADER 0x92CB
+#define GL_MAX_VERTEX_ATOMIC_COUNTER_BUFFERS 0x92CC
+#define GL_MAX_TESS_CONTROL_ATOMIC_COUNTER_BUFFERS 0x92CD
+#define GL_MAX_TESS_EVALUATION_ATOMIC_COUNTER_BUFFERS 0x92CE
+#define GL_MAX_GEOMETRY_ATOMIC_COUNTER_BUFFERS 0x92CF
+#define GL_MAX_FRAGMENT_ATOMIC_COUNTER_BUFFERS 0x92D0
+#define GL_MAX_COMBINED_ATOMIC_COUNTER_BUFFERS 0x92D1
+#define GL_MAX_VERTEX_ATOMIC_COUNTERS 0x92D2
+#define GL_MAX_TESS_CONTROL_ATOMIC_COUNTERS 0x92D3
+#define GL_MAX_TESS_EVALUATION_ATOMIC_COUNTERS 0x92D4
+#define GL_MAX_GEOMETRY_ATOMIC_COUNTERS 0x92D5
+#define GL_MAX_FRAGMENT_ATOMIC_COUNTERS 0x92D6
+#define GL_MAX_COMBINED_ATOMIC_COUNTERS 0x92D7
+#define GL_MAX_ATOMIC_COUNTER_BUFFER_SIZE 0x92D8
+#define GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS 0x92DC
+#define GL_ACTIVE_ATOMIC_COUNTER_BUFFERS 0x92D9
+#define GL_UNIFORM_ATOMIC_COUNTER_BUFFER_INDEX 0x92DA
+#define GL_UNSIGNED_INT_ATOMIC_COUNTER 0x92DB
+#define GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT 0x00000001
+#define GL_ELEMENT_ARRAY_BARRIER_BIT 0x00000002
+#define GL_UNIFORM_BARRIER_BIT 0x00000004
+#define GL_TEXTURE_FETCH_BARRIER_BIT 0x00000008
+#define GL_SHADER_IMAGE_ACCESS_BARRIER_BIT 0x00000020
+#define GL_COMMAND_BARRIER_BIT 0x00000040
+#define GL_PIXEL_BUFFER_BARRIER_BIT 0x00000080
+#define GL_TEXTURE_UPDATE_BARRIER_BIT 0x00000100
+#define GL_BUFFER_UPDATE_BARRIER_BIT 0x00000200
+#define GL_FRAMEBUFFER_BARRIER_BIT 0x00000400
+#define GL_TRANSFORM_FEEDBACK_BARRIER_BIT 0x00000800
+#define GL_ATOMIC_COUNTER_BARRIER_BIT 0x00001000
+#define GL_ALL_BARRIER_BITS 0xFFFFFFFF
+#define GL_MAX_IMAGE_UNITS 0x8F38
+#define GL_MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS 0x8F39
+#define GL_IMAGE_BINDING_NAME 0x8F3A
+#define GL_IMAGE_BINDING_LEVEL 0x8F3B
+#define GL_IMAGE_BINDING_LAYERED 0x8F3C
+#define GL_IMAGE_BINDING_LAYER 0x8F3D
+#define GL_IMAGE_BINDING_ACCESS 0x8F3E
+#define GL_IMAGE_1D 0x904C
+#define GL_IMAGE_2D 0x904D
+#define GL_IMAGE_3D 0x904E
+#define GL_IMAGE_2D_RECT 0x904F
+#define GL_IMAGE_CUBE 0x9050
+#define GL_IMAGE_BUFFER 0x9051
+#define GL_IMAGE_1D_ARRAY 0x9052
+#define GL_IMAGE_2D_ARRAY 0x9053
+#define GL_IMAGE_CUBE_MAP_ARRAY 0x9054
+#define GL_IMAGE_2D_MULTISAMPLE 0x9055
+#define GL_IMAGE_2D_MULTISAMPLE_ARRAY 0x9056
+#define GL_INT_IMAGE_1D 0x9057
+#define GL_INT_IMAGE_2D 0x9058
+#define GL_INT_IMAGE_3D 0x9059
+#define GL_INT_IMAGE_2D_RECT 0x905A
+#define GL_INT_IMAGE_CUBE 0x905B
+#define GL_INT_IMAGE_BUFFER 0x905C
+#define GL_INT_IMAGE_1D_ARRAY 0x905D
+#define GL_INT_IMAGE_2D_ARRAY 0x905E
+#define GL_INT_IMAGE_CUBE_MAP_ARRAY 0x905F
+#define GL_INT_IMAGE_2D_MULTISAMPLE 0x9060
+#define GL_INT_IMAGE_2D_MULTISAMPLE_ARRAY 0x9061
+#define GL_UNSIGNED_INT_IMAGE_1D 0x9062
+#define GL_UNSIGNED_INT_IMAGE_2D 0x9063
+#define GL_UNSIGNED_INT_IMAGE_3D 0x9064
+#define GL_UNSIGNED_INT_IMAGE_2D_RECT 0x9065
+#define GL_UNSIGNED_INT_IMAGE_CUBE 0x9066
+#define GL_UNSIGNED_INT_IMAGE_BUFFER 0x9067
+#define GL_UNSIGNED_INT_IMAGE_1D_ARRAY 0x9068
+#define GL_UNSIGNED_INT_IMAGE_2D_ARRAY 0x9069
+#define GL_UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY 0x906A
+#define GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE 0x906B
+#define GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY 0x906C
+#define GL_MAX_IMAGE_SAMPLES 0x906D
+#define GL_IMAGE_BINDING_FORMAT 0x906E
+#define GL_IMAGE_FORMAT_COMPATIBILITY_TYPE 0x90C7
+#define GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE 0x90C8
+#define GL_IMAGE_FORMAT_COMPATIBILITY_BY_CLASS 0x90C9
+#define GL_MAX_VERTEX_IMAGE_UNIFORMS 0x90CA
+#define GL_MAX_TESS_CONTROL_IMAGE_UNIFORMS 0x90CB
+#define GL_MAX_TESS_EVALUATION_IMAGE_UNIFORMS 0x90CC
+#define GL_MAX_GEOMETRY_IMAGE_UNIFORMS 0x90CD
+#define GL_MAX_FRAGMENT_IMAGE_UNIFORMS 0x90CE
+#define GL_MAX_COMBINED_IMAGE_UNIFORMS 0x90CF
+#define GL_COMPRESSED_RGBA_BPTC_UNORM 0x8E8C
+#define GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM 0x8E8D
+#define GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT 0x8E8E
+#define GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT 0x8E8F
+#define GL_TEXTURE_IMMUTABLE_FORMAT 0x912F
+#define GL_NUM_SHADING_LANGUAGE_VERSIONS 0x82E9
+#define GL_VERTEX_ATTRIB_ARRAY_LONG 0x874E
+#define GL_COMPRESSED_RGB8_ETC2 0x9274
+#define GL_COMPRESSED_SRGB8_ETC2 0x9275
+#define GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 0x9276
+#define GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2 0x9277
+#define GL_COMPRESSED_RGBA8_ETC2_EAC 0x9278
+#define GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC 0x9279
+#define GL_COMPRESSED_R11_EAC 0x9270
+#define GL_COMPRESSED_SIGNED_R11_EAC 0x9271
+#define GL_COMPRESSED_RG11_EAC 0x9272
+#define GL_COMPRESSED_SIGNED_RG11_EAC 0x9273
+#define GL_PRIMITIVE_RESTART_FIXED_INDEX 0x8D69
+#define GL_ANY_SAMPLES_PASSED_CONSERVATIVE 0x8D6A
+#define GL_MAX_ELEMENT_INDEX 0x8D6B
+#define GL_COMPUTE_SHADER 0x91B9
+#define GL_MAX_COMPUTE_UNIFORM_BLOCKS 0x91BB
+#define GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS 0x91BC
+#define GL_MAX_COMPUTE_IMAGE_UNIFORMS 0x91BD
+#define GL_MAX_COMPUTE_SHARED_MEMORY_SIZE 0x8262
+#define GL_MAX_COMPUTE_UNIFORM_COMPONENTS 0x8263
+#define GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS 0x8264
+#define GL_MAX_COMPUTE_ATOMIC_COUNTERS 0x8265
+#define GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS 0x8266
+#define GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS 0x90EB
+#define GL_MAX_COMPUTE_WORK_GROUP_COUNT 0x91BE
+#define GL_MAX_COMPUTE_WORK_GROUP_SIZE 0x91BF
+#define GL_COMPUTE_WORK_GROUP_SIZE 0x8267
+#define GL_UNIFORM_BLOCK_REFERENCED_BY_COMPUTE_SHADER 0x90EC
+#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_COMPUTE_SHADER 0x90ED
+#define GL_DISPATCH_INDIRECT_BUFFER 0x90EE
+#define GL_DISPATCH_INDIRECT_BUFFER_BINDING 0x90EF
+#define GL_COMPUTE_SHADER_BIT 0x00000020
+#define GL_DEBUG_OUTPUT_SYNCHRONOUS 0x8242
+#define GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH 0x8243
+#define GL_DEBUG_CALLBACK_FUNCTION 0x8244
+#define GL_DEBUG_CALLBACK_USER_PARAM 0x8245
+#define GL_DEBUG_SOURCE_API 0x8246
+#define GL_DEBUG_SOURCE_WINDOW_SYSTEM 0x8247
+#define GL_DEBUG_SOURCE_SHADER_COMPILER 0x8248
+#define GL_DEBUG_SOURCE_THIRD_PARTY 0x8249
+#define GL_DEBUG_SOURCE_APPLICATION 0x824A
+#define GL_DEBUG_SOURCE_OTHER 0x824B
+#define GL_DEBUG_TYPE_ERROR 0x824C
+#define GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR 0x824D
+#define GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR 0x824E
+#define GL_DEBUG_TYPE_PORTABILITY 0x824F
+#define GL_DEBUG_TYPE_PERFORMANCE 0x8250
+#define GL_DEBUG_TYPE_OTHER 0x8251
+#define GL_MAX_DEBUG_MESSAGE_LENGTH 0x9143
+#define GL_MAX_DEBUG_LOGGED_MESSAGES 0x9144
+#define GL_DEBUG_LOGGED_MESSAGES 0x9145
+#define GL_DEBUG_SEVERITY_HIGH 0x9146
+#define GL_DEBUG_SEVERITY_MEDIUM 0x9147
+#define GL_DEBUG_SEVERITY_LOW 0x9148
+#define GL_DEBUG_TYPE_MARKER 0x8268
+#define GL_DEBUG_TYPE_PUSH_GROUP 0x8269
+#define GL_DEBUG_TYPE_POP_GROUP 0x826A
+#define GL_DEBUG_SEVERITY_NOTIFICATION 0x826B
+#define GL_MAX_DEBUG_GROUP_STACK_DEPTH 0x826C
+#define GL_DEBUG_GROUP_STACK_DEPTH 0x826D
+#define GL_BUFFER 0x82E0
+#define GL_SHADER 0x82E1
+#define GL_PROGRAM 0x82E2
+#define GL_QUERY 0x82E3
+#define GL_PROGRAM_PIPELINE 0x82E4
+#define GL_SAMPLER 0x82E6
+#define GL_MAX_LABEL_LENGTH 0x82E8
+#define GL_DEBUG_OUTPUT 0x92E0
+#define GL_CONTEXT_FLAG_DEBUG_BIT 0x00000002
+#define GL_MAX_UNIFORM_LOCATIONS 0x826E
+#define GL_FRAMEBUFFER_DEFAULT_WIDTH 0x9310
+#define GL_FRAMEBUFFER_DEFAULT_HEIGHT 0x9311
+#define GL_FRAMEBUFFER_DEFAULT_LAYERS 0x9312
+#define GL_FRAMEBUFFER_DEFAULT_SAMPLES 0x9313
+#define GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS 0x9314
+#define GL_MAX_FRAMEBUFFER_WIDTH 0x9315
+#define GL_MAX_FRAMEBUFFER_HEIGHT 0x9316
+#define GL_MAX_FRAMEBUFFER_LAYERS 0x9317
+#define GL_MAX_FRAMEBUFFER_SAMPLES 0x9318
+#define GL_INTERNALFORMAT_SUPPORTED 0x826F
+#define GL_INTERNALFORMAT_PREFERRED 0x8270
+#define GL_INTERNALFORMAT_RED_SIZE 0x8271
+#define GL_INTERNALFORMAT_GREEN_SIZE 0x8272
+#define GL_INTERNALFORMAT_BLUE_SIZE 0x8273
+#define GL_INTERNALFORMAT_ALPHA_SIZE 0x8274
+#define GL_INTERNALFORMAT_DEPTH_SIZE 0x8275
+#define GL_INTERNALFORMAT_STENCIL_SIZE 0x8276
+#define GL_INTERNALFORMAT_SHARED_SIZE 0x8277
+#define GL_INTERNALFORMAT_RED_TYPE 0x8278
+#define GL_INTERNALFORMAT_GREEN_TYPE 0x8279
+#define GL_INTERNALFORMAT_BLUE_TYPE 0x827A
+#define GL_INTERNALFORMAT_ALPHA_TYPE 0x827B
+#define GL_INTERNALFORMAT_DEPTH_TYPE 0x827C
+#define GL_INTERNALFORMAT_STENCIL_TYPE 0x827D
+#define GL_MAX_WIDTH 0x827E
+#define GL_MAX_HEIGHT 0x827F
+#define GL_MAX_DEPTH 0x8280
+#define GL_MAX_LAYERS 0x8281
+#define GL_MAX_COMBINED_DIMENSIONS 0x8282
+#define GL_COLOR_COMPONENTS 0x8283
+#define GL_DEPTH_COMPONENTS 0x8284
+#define GL_STENCIL_COMPONENTS 0x8285
+#define GL_COLOR_RENDERABLE 0x8286
+#define GL_DEPTH_RENDERABLE 0x8287
+#define GL_STENCIL_RENDERABLE 0x8288
+#define GL_FRAMEBUFFER_RENDERABLE 0x8289
+#define GL_FRAMEBUFFER_RENDERABLE_LAYERED 0x828A
+#define GL_FRAMEBUFFER_BLEND 0x828B
+#define GL_READ_PIXELS 0x828C
+#define GL_READ_PIXELS_FORMAT 0x828D
+#define GL_READ_PIXELS_TYPE 0x828E
+#define GL_TEXTURE_IMAGE_FORMAT 0x828F
+#define GL_TEXTURE_IMAGE_TYPE 0x8290
+#define GL_GET_TEXTURE_IMAGE_FORMAT 0x8291
+#define GL_GET_TEXTURE_IMAGE_TYPE 0x8292
+#define GL_MIPMAP 0x8293
+#define GL_MANUAL_GENERATE_MIPMAP 0x8294
+#define GL_AUTO_GENERATE_MIPMAP 0x8295
+#define GL_COLOR_ENCODING 0x8296
+#define GL_SRGB_READ 0x8297
+#define GL_SRGB_WRITE 0x8298
+#define GL_FILTER 0x829A
+#define GL_VERTEX_TEXTURE 0x829B
+#define GL_TESS_CONTROL_TEXTURE 0x829C
+#define GL_TESS_EVALUATION_TEXTURE 0x829D
+#define GL_GEOMETRY_TEXTURE 0x829E
+#define GL_FRAGMENT_TEXTURE 0x829F
+#define GL_COMPUTE_TEXTURE 0x82A0
+#define GL_TEXTURE_SHADOW 0x82A1
+#define GL_TEXTURE_GATHER 0x82A2
+#define GL_TEXTURE_GATHER_SHADOW 0x82A3
+#define GL_SHADER_IMAGE_LOAD 0x82A4
+#define GL_SHADER_IMAGE_STORE 0x82A5
+#define GL_SHADER_IMAGE_ATOMIC 0x82A6
+#define GL_IMAGE_TEXEL_SIZE 0x82A7
+#define GL_IMAGE_COMPATIBILITY_CLASS 0x82A8
+#define GL_IMAGE_PIXEL_FORMAT 0x82A9
+#define GL_IMAGE_PIXEL_TYPE 0x82AA
+#define GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST 0x82AC
+#define GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST 0x82AD
+#define GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE 0x82AE
+#define GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE 0x82AF
+#define GL_TEXTURE_COMPRESSED_BLOCK_WIDTH 0x82B1
+#define GL_TEXTURE_COMPRESSED_BLOCK_HEIGHT 0x82B2
+#define GL_TEXTURE_COMPRESSED_BLOCK_SIZE 0x82B3
+#define GL_CLEAR_BUFFER 0x82B4
+#define GL_TEXTURE_VIEW 0x82B5
+#define GL_VIEW_COMPATIBILITY_CLASS 0x82B6
+#define GL_FULL_SUPPORT 0x82B7
+#define GL_CAVEAT_SUPPORT 0x82B8
+#define GL_IMAGE_CLASS_4_X_32 0x82B9
+#define GL_IMAGE_CLASS_2_X_32 0x82BA
+#define GL_IMAGE_CLASS_1_X_32 0x82BB
+#define GL_IMAGE_CLASS_4_X_16 0x82BC
+#define GL_IMAGE_CLASS_2_X_16 0x82BD
+#define GL_IMAGE_CLASS_1_X_16 0x82BE
+#define GL_IMAGE_CLASS_4_X_8 0x82BF
+#define GL_IMAGE_CLASS_2_X_8 0x82C0
+#define GL_IMAGE_CLASS_1_X_8 0x82C1
+#define GL_IMAGE_CLASS_11_11_10 0x82C2
+#define GL_IMAGE_CLASS_10_10_10_2 0x82C3
+#define GL_VIEW_CLASS_128_BITS 0x82C4
+#define GL_VIEW_CLASS_96_BITS 0x82C5
+#define GL_VIEW_CLASS_64_BITS 0x82C6
+#define GL_VIEW_CLASS_48_BITS 0x82C7
+#define GL_VIEW_CLASS_32_BITS 0x82C8
+#define GL_VIEW_CLASS_24_BITS 0x82C9
+#define GL_VIEW_CLASS_16_BITS 0x82CA
+#define GL_VIEW_CLASS_8_BITS 0x82CB
+#define GL_VIEW_CLASS_S3TC_DXT1_RGB 0x82CC
+#define GL_VIEW_CLASS_S3TC_DXT1_RGBA 0x82CD
+#define GL_VIEW_CLASS_S3TC_DXT3_RGBA 0x82CE
+#define GL_VIEW_CLASS_S3TC_DXT5_RGBA 0x82CF
+#define GL_VIEW_CLASS_RGTC1_RED 0x82D0
+#define GL_VIEW_CLASS_RGTC2_RG 0x82D1
+#define GL_VIEW_CLASS_BPTC_UNORM 0x82D2
+#define GL_VIEW_CLASS_BPTC_FLOAT 0x82D3
+#define GL_UNIFORM 0x92E1
+#define GL_UNIFORM_BLOCK 0x92E2
+#define GL_PROGRAM_INPUT 0x92E3
+#define GL_PROGRAM_OUTPUT 0x92E4
+#define GL_BUFFER_VARIABLE 0x92E5
+#define GL_SHADER_STORAGE_BLOCK 0x92E6
+#define GL_VERTEX_SUBROUTINE 0x92E8
+#define GL_TESS_CONTROL_SUBROUTINE 0x92E9
+#define GL_TESS_EVALUATION_SUBROUTINE 0x92EA
+#define GL_GEOMETRY_SUBROUTINE 0x92EB
+#define GL_FRAGMENT_SUBROUTINE 0x92EC
+#define GL_COMPUTE_SUBROUTINE 0x92ED
+#define GL_VERTEX_SUBROUTINE_UNIFORM 0x92EE
+#define GL_TESS_CONTROL_SUBROUTINE_UNIFORM 0x92EF
+#define GL_TESS_EVALUATION_SUBROUTINE_UNIFORM 0x92F0
+#define GL_GEOMETRY_SUBROUTINE_UNIFORM 0x92F1
+#define GL_FRAGMENT_SUBROUTINE_UNIFORM 0x92F2
+#define GL_COMPUTE_SUBROUTINE_UNIFORM 0x92F3
+#define GL_TRANSFORM_FEEDBACK_VARYING 0x92F4
+#define GL_ACTIVE_RESOURCES 0x92F5
+#define GL_MAX_NAME_LENGTH 0x92F6
+#define GL_MAX_NUM_ACTIVE_VARIABLES 0x92F7
+#define GL_MAX_NUM_COMPATIBLE_SUBROUTINES 0x92F8
+#define GL_NAME_LENGTH 0x92F9
+#define GL_TYPE 0x92FA
+#define GL_ARRAY_SIZE 0x92FB
+#define GL_OFFSET 0x92FC
+#define GL_BLOCK_INDEX 0x92FD
+#define GL_ARRAY_STRIDE 0x92FE
+#define GL_MATRIX_STRIDE 0x92FF
+#define GL_IS_ROW_MAJOR 0x9300
+#define GL_ATOMIC_COUNTER_BUFFER_INDEX 0x9301
+#define GL_BUFFER_BINDING 0x9302
+#define GL_BUFFER_DATA_SIZE 0x9303
+#define GL_NUM_ACTIVE_VARIABLES 0x9304
+#define GL_ACTIVE_VARIABLES 0x9305
+#define GL_REFERENCED_BY_VERTEX_SHADER 0x9306
+#define GL_REFERENCED_BY_TESS_CONTROL_SHADER 0x9307
+#define GL_REFERENCED_BY_TESS_EVALUATION_SHADER 0x9308
+#define GL_REFERENCED_BY_GEOMETRY_SHADER 0x9309
+#define GL_REFERENCED_BY_FRAGMENT_SHADER 0x930A
+#define GL_REFERENCED_BY_COMPUTE_SHADER 0x930B
+#define GL_TOP_LEVEL_ARRAY_SIZE 0x930C
+#define GL_TOP_LEVEL_ARRAY_STRIDE 0x930D
+#define GL_LOCATION 0x930E
+#define GL_LOCATION_INDEX 0x930F
+#define GL_IS_PER_PATCH 0x92E7
+#define GL_SHADER_STORAGE_BUFFER 0x90D2
+#define GL_SHADER_STORAGE_BUFFER_BINDING 0x90D3
+#define GL_SHADER_STORAGE_BUFFER_START 0x90D4
+#define GL_SHADER_STORAGE_BUFFER_SIZE 0x90D5
+#define GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS 0x90D6
+#define GL_MAX_GEOMETRY_SHADER_STORAGE_BLOCKS 0x90D7
+#define GL_MAX_TESS_CONTROL_SHADER_STORAGE_BLOCKS 0x90D8
+#define GL_MAX_TESS_EVALUATION_SHADER_STORAGE_BLOCKS 0x90D9
+#define GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS 0x90DA
+#define GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS 0x90DB
+#define GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS 0x90DC
+#define GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS 0x90DD
+#define GL_MAX_SHADER_STORAGE_BLOCK_SIZE 0x90DE
+#define GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT 0x90DF
+#define GL_SHADER_STORAGE_BARRIER_BIT 0x00002000
+#define GL_MAX_COMBINED_SHADER_OUTPUT_RESOURCES 0x8F39
+#define GL_DEPTH_STENCIL_TEXTURE_MODE 0x90EA
+#define GL_TEXTURE_BUFFER_OFFSET 0x919D
+#define GL_TEXTURE_BUFFER_SIZE 0x919E
+#define GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT 0x919F
+#define GL_TEXTURE_VIEW_MIN_LEVEL 0x82DB
+#define GL_TEXTURE_VIEW_NUM_LEVELS 0x82DC
+#define GL_TEXTURE_VIEW_MIN_LAYER 0x82DD
+#define GL_TEXTURE_VIEW_NUM_LAYERS 0x82DE
+#define GL_TEXTURE_IMMUTABLE_LEVELS 0x82DF
+#define GL_VERTEX_ATTRIB_BINDING 0x82D4
+#define GL_VERTEX_ATTRIB_RELATIVE_OFFSET 0x82D5
+#define GL_VERTEX_BINDING_DIVISOR 0x82D6
+#define GL_VERTEX_BINDING_OFFSET 0x82D7
+#define GL_VERTEX_BINDING_STRIDE 0x82D8
+#define GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET 0x82D9
+#define GL_MAX_VERTEX_ATTRIB_BINDINGS 0x82DA
+#define GL_VERTEX_BINDING_BUFFER 0x8F4F
+#define GL_DISPLAY_LIST 0x82E7
+#define GL_MAX_VERTEX_ATTRIB_STRIDE 0x82E5
+#define GL_PRIMITIVE_RESTART_FOR_PATCHES_SUPPORTED 0x8221
+#define GL_TEXTURE_BUFFER_BINDING 0x8C2A
+#define GL_MAP_PERSISTENT_BIT 0x0040
+#define GL_MAP_COHERENT_BIT 0x0080
+#define GL_DYNAMIC_STORAGE_BIT 0x0100
+#define GL_CLIENT_STORAGE_BIT 0x0200
+#define GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT 0x00004000
+#define GL_BUFFER_IMMUTABLE_STORAGE 0x821F
+#define GL_BUFFER_STORAGE_FLAGS 0x8220
+#define GL_CLEAR_TEXTURE 0x9365
+#define GL_LOCATION_COMPONENT 0x934A
+#define GL_TRANSFORM_FEEDBACK_BUFFER_INDEX 0x934B
+#define GL_TRANSFORM_FEEDBACK_BUFFER_STRIDE 0x934C
+#define GL_QUERY_BUFFER 0x9192
+#define GL_QUERY_BUFFER_BARRIER_BIT 0x00008000
+#define GL_QUERY_BUFFER_BINDING 0x9193
+#define GL_QUERY_RESULT_NO_WAIT 0x9194
+#define GL_MIRROR_CLAMP_TO_EDGE 0x8743
+#define GL_CONTEXT_LOST 0x0507
+#define GL_NEGATIVE_ONE_TO_ONE 0x935E
+#define GL_ZERO_TO_ONE 0x935F
+#define GL_CLIP_ORIGIN 0x935C
+#define GL_CLIP_DEPTH_MODE 0x935D
+#define GL_QUERY_WAIT_INVERTED 0x8E17
+#define GL_QUERY_NO_WAIT_INVERTED 0x8E18
+#define GL_QUERY_BY_REGION_WAIT_INVERTED 0x8E19
+#define GL_QUERY_BY_REGION_NO_WAIT_INVERTED 0x8E1A
+#define GL_MAX_CULL_DISTANCES 0x82F9
+#define GL_MAX_COMBINED_CLIP_AND_CULL_DISTANCES 0x82FA
+#define GL_TEXTURE_TARGET 0x1006
+#define GL_QUERY_TARGET 0x82EA
+#define GL_GUILTY_CONTEXT_RESET 0x8253
+#define GL_INNOCENT_CONTEXT_RESET 0x8254
+#define GL_UNKNOWN_CONTEXT_RESET 0x8255
+#define GL_RESET_NOTIFICATION_STRATEGY 0x8256
+#define GL_LOSE_CONTEXT_ON_RESET 0x8252
+#define GL_NO_RESET_NOTIFICATION 0x8261
+#define GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT 0x00000004
+#define GL_COLOR_TABLE 0x80D0
+#define GL_POST_CONVOLUTION_COLOR_TABLE 0x80D1
+#define GL_POST_COLOR_MATRIX_COLOR_TABLE 0x80D2
+#define GL_PROXY_COLOR_TABLE 0x80D3
+#define GL_PROXY_POST_CONVOLUTION_COLOR_TABLE 0x80D4
+#define GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE 0x80D5
+#define GL_CONVOLUTION_1D 0x8010
+#define GL_CONVOLUTION_2D 0x8011
+#define GL_SEPARABLE_2D 0x8012
+#define GL_HISTOGRAM 0x8024
+#define GL_PROXY_HISTOGRAM 0x8025
+#define GL_MINMAX 0x802E
+#define GL_CONTEXT_RELEASE_BEHAVIOR 0x82FB
+#define GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH 0x82FC
+#define GL_SHADER_BINARY_FORMAT_SPIR_V 0x9551
+#define GL_SPIR_V_BINARY 0x9552
+#define GL_PARAMETER_BUFFER 0x80EE
+#define GL_PARAMETER_BUFFER_BINDING 0x80EF
+#define GL_CONTEXT_FLAG_NO_ERROR_BIT 0x00000008
+#define GL_VERTICES_SUBMITTED 0x82EE
+#define GL_PRIMITIVES_SUBMITTED 0x82EF
+#define GL_VERTEX_SHADER_INVOCATIONS 0x82F0
+#define GL_TESS_CONTROL_SHADER_PATCHES 0x82F1
+#define GL_TESS_EVALUATION_SHADER_INVOCATIONS 0x82F2
+#define GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED 0x82F3
+#define GL_FRAGMENT_SHADER_INVOCATIONS 0x82F4
+#define GL_COMPUTE_SHADER_INVOCATIONS 0x82F5
+#define GL_CLIPPING_INPUT_PRIMITIVES 0x82F6
+#define GL_CLIPPING_OUTPUT_PRIMITIVES 0x82F7
+#define GL_POLYGON_OFFSET_CLAMP 0x8E1B
+#define GL_SPIR_V_EXTENSIONS 0x9553
+#define GL_NUM_SPIR_V_EXTENSIONS 0x9554
+#define GL_TEXTURE_MAX_ANISOTROPY 0x84FE
+#define GL_MAX_TEXTURE_MAX_ANISOTROPY 0x84FF
+#define GL_TRANSFORM_FEEDBACK_OVERFLOW 0x82EC
+#define GL_TRANSFORM_FEEDBACK_STREAM_OVERFLOW 0x82ED
+#ifndef GL_VERSION_1_0
+#define GL_VERSION_1_0 1
+GLAPI int GLAD_GL_VERSION_1_0;
+typedef void (APIENTRYP PFNGLCULLFACEPROC)(GLenum mode);
+GLAPI PFNGLCULLFACEPROC glad_glCullFace;
+#define glCullFace glad_glCullFace
+typedef void (APIENTRYP PFNGLFRONTFACEPROC)(GLenum mode);
+GLAPI PFNGLFRONTFACEPROC glad_glFrontFace;
+#define glFrontFace glad_glFrontFace
+typedef void (APIENTRYP PFNGLHINTPROC)(GLenum target, GLenum mode);
+GLAPI PFNGLHINTPROC glad_glHint;
+#define glHint glad_glHint
+typedef void (APIENTRYP PFNGLLINEWIDTHPROC)(GLfloat width);
+GLAPI PFNGLLINEWIDTHPROC glad_glLineWidth;
+#define glLineWidth glad_glLineWidth
+typedef void (APIENTRYP PFNGLPOINTSIZEPROC)(GLfloat size);
+GLAPI PFNGLPOINTSIZEPROC glad_glPointSize;
+#define glPointSize glad_glPointSize
+typedef void (APIENTRYP PFNGLPOLYGONMODEPROC)(GLenum face, GLenum mode);
+GLAPI PFNGLPOLYGONMODEPROC glad_glPolygonMode;
+#define glPolygonMode glad_glPolygonMode
+typedef void (APIENTRYP PFNGLSCISSORPROC)(GLint x, GLint y, GLsizei width, GLsizei height);
+GLAPI PFNGLSCISSORPROC glad_glScissor;
+#define glScissor glad_glScissor
+typedef void (APIENTRYP PFNGLTEXPARAMETERFPROC)(GLenum target, GLenum pname, GLfloat param);
+GLAPI PFNGLTEXPARAMETERFPROC glad_glTexParameterf;
+#define glTexParameterf glad_glTexParameterf
+typedef void (APIENTRYP PFNGLTEXPARAMETERFVPROC)(GLenum target, GLenum pname, const GLfloat *params);
+GLAPI PFNGLTEXPARAMETERFVPROC glad_glTexParameterfv;
+#define glTexParameterfv glad_glTexParameterfv
+typedef void (APIENTRYP PFNGLTEXPARAMETERIPROC)(GLenum target, GLenum pname, GLint param);
+GLAPI PFNGLTEXPARAMETERIPROC glad_glTexParameteri;
+#define glTexParameteri glad_glTexParameteri
+typedef void (APIENTRYP PFNGLTEXPARAMETERIVPROC)(GLenum target, GLenum pname, const GLint *params);
+GLAPI PFNGLTEXPARAMETERIVPROC glad_glTexParameteriv;
+#define glTexParameteriv glad_glTexParameteriv
+typedef void (APIENTRYP PFNGLTEXIMAGE1DPROC)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLint border, GLenum format, GLenum type, const void *pixels);
+GLAPI PFNGLTEXIMAGE1DPROC glad_glTexImage1D;
+#define glTexImage1D glad_glTexImage1D
+typedef void (APIENTRYP PFNGLTEXIMAGE2DPROC)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);
+GLAPI PFNGLTEXIMAGE2DPROC glad_glTexImage2D;
+#define glTexImage2D glad_glTexImage2D
+typedef void (APIENTRYP PFNGLDRAWBUFFERPROC)(GLenum buf);
+GLAPI PFNGLDRAWBUFFERPROC glad_glDrawBuffer;
+#define glDrawBuffer glad_glDrawBuffer
+typedef void (APIENTRYP PFNGLCLEARPROC)(GLbitfield mask);
+GLAPI PFNGLCLEARPROC glad_glClear;
+#define glClear glad_glClear
+typedef void (APIENTRYP PFNGLCLEARCOLORPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
+GLAPI PFNGLCLEARCOLORPROC glad_glClearColor;
+#define glClearColor glad_glClearColor
+typedef void (APIENTRYP PFNGLCLEARSTENCILPROC)(GLint s);
+GLAPI PFNGLCLEARSTENCILPROC glad_glClearStencil;
+#define glClearStencil glad_glClearStencil
+typedef void (APIENTRYP PFNGLCLEARDEPTHPROC)(GLdouble depth);
+GLAPI PFNGLCLEARDEPTHPROC glad_glClearDepth;
+#define glClearDepth glad_glClearDepth
+typedef void (APIENTRYP PFNGLSTENCILMASKPROC)(GLuint mask);
+GLAPI PFNGLSTENCILMASKPROC glad_glStencilMask;
+#define glStencilMask glad_glStencilMask
+typedef void (APIENTRYP PFNGLCOLORMASKPROC)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
+GLAPI PFNGLCOLORMASKPROC glad_glColorMask;
+#define glColorMask glad_glColorMask
+typedef void (APIENTRYP PFNGLDEPTHMASKPROC)(GLboolean flag);
+GLAPI PFNGLDEPTHMASKPROC glad_glDepthMask;
+#define glDepthMask glad_glDepthMask
+typedef void (APIENTRYP PFNGLDISABLEPROC)(GLenum cap);
+GLAPI PFNGLDISABLEPROC glad_glDisable;
+#define glDisable glad_glDisable
+typedef void (APIENTRYP PFNGLENABLEPROC)(GLenum cap);
+GLAPI PFNGLENABLEPROC glad_glEnable;
+#define glEnable glad_glEnable
+typedef void (APIENTRYP PFNGLFINISHPROC)(void);
+GLAPI PFNGLFINISHPROC glad_glFinish;
+#define glFinish glad_glFinish
+typedef void (APIENTRYP PFNGLFLUSHPROC)(void);
+GLAPI PFNGLFLUSHPROC glad_glFlush;
+#define glFlush glad_glFlush
+typedef void (APIENTRYP PFNGLBLENDFUNCPROC)(GLenum sfactor, GLenum dfactor);
+GLAPI PFNGLBLENDFUNCPROC glad_glBlendFunc;
+#define glBlendFunc glad_glBlendFunc
+typedef void (APIENTRYP PFNGLLOGICOPPROC)(GLenum opcode);
+GLAPI PFNGLLOGICOPPROC glad_glLogicOp;
+#define glLogicOp glad_glLogicOp
+typedef void (APIENTRYP PFNGLSTENCILFUNCPROC)(GLenum func, GLint ref, GLuint mask);
+GLAPI PFNGLSTENCILFUNCPROC glad_glStencilFunc;
+#define glStencilFunc glad_glStencilFunc
+typedef void (APIENTRYP PFNGLSTENCILOPPROC)(GLenum fail, GLenum zfail, GLenum zpass);
+GLAPI PFNGLSTENCILOPPROC glad_glStencilOp;
+#define glStencilOp glad_glStencilOp
+typedef void (APIENTRYP PFNGLDEPTHFUNCPROC)(GLenum func);
+GLAPI PFNGLDEPTHFUNCPROC glad_glDepthFunc;
+#define glDepthFunc glad_glDepthFunc
+typedef void (APIENTRYP PFNGLPIXELSTOREFPROC)(GLenum pname, GLfloat param);
+GLAPI PFNGLPIXELSTOREFPROC glad_glPixelStoref;
+#define glPixelStoref glad_glPixelStoref
+typedef void (APIENTRYP PFNGLPIXELSTOREIPROC)(GLenum pname, GLint param);
+GLAPI PFNGLPIXELSTOREIPROC glad_glPixelStorei;
+#define glPixelStorei glad_glPixelStorei
+typedef void (APIENTRYP PFNGLREADBUFFERPROC)(GLenum src);
+GLAPI PFNGLREADBUFFERPROC glad_glReadBuffer;
+#define glReadBuffer glad_glReadBuffer
+typedef void (APIENTRYP PFNGLREADPIXELSPROC)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels);
+GLAPI PFNGLREADPIXELSPROC glad_glReadPixels;
+#define glReadPixels glad_glReadPixels
+typedef void (APIENTRYP PFNGLGETBOOLEANVPROC)(GLenum pname, GLboolean *data);
+GLAPI PFNGLGETBOOLEANVPROC glad_glGetBooleanv;
+#define glGetBooleanv glad_glGetBooleanv
+typedef void (APIENTRYP PFNGLGETDOUBLEVPROC)(GLenum pname, GLdouble *data);
+GLAPI PFNGLGETDOUBLEVPROC glad_glGetDoublev;
+#define glGetDoublev glad_glGetDoublev
+typedef GLenum (APIENTRYP PFNGLGETERRORPROC)(void);
+GLAPI PFNGLGETERRORPROC glad_glGetError;
+#define glGetError glad_glGetError
+typedef void (APIENTRYP PFNGLGETFLOATVPROC)(GLenum pname, GLfloat *data);
+GLAPI PFNGLGETFLOATVPROC glad_glGetFloatv;
+#define glGetFloatv glad_glGetFloatv
+typedef void (APIENTRYP PFNGLGETINTEGERVPROC)(GLenum pname, GLint *data);
+GLAPI PFNGLGETINTEGERVPROC glad_glGetIntegerv;
+#define glGetIntegerv glad_glGetIntegerv
+typedef const GLubyte * (APIENTRYP PFNGLGETSTRINGPROC)(GLenum name);
+GLAPI PFNGLGETSTRINGPROC glad_glGetString;
+#define glGetString glad_glGetString
+typedef void (APIENTRYP PFNGLGETTEXIMAGEPROC)(GLenum target, GLint level, GLenum format, GLenum type, void *pixels);
+GLAPI PFNGLGETTEXIMAGEPROC glad_glGetTexImage;
+#define glGetTexImage glad_glGetTexImage
+typedef void (APIENTRYP PFNGLGETTEXPARAMETERFVPROC)(GLenum target, GLenum pname, GLfloat *params);
+GLAPI PFNGLGETTEXPARAMETERFVPROC glad_glGetTexParameterfv;
+#define glGetTexParameterfv glad_glGetTexParameterfv
+typedef void (APIENTRYP PFNGLGETTEXPARAMETERIVPROC)(GLenum target, GLenum pname, GLint *params);
+GLAPI PFNGLGETTEXPARAMETERIVPROC glad_glGetTexParameteriv;
+#define glGetTexParameteriv glad_glGetTexParameteriv
+typedef void (APIENTRYP PFNGLGETTEXLEVELPARAMETERFVPROC)(GLenum target, GLint level, GLenum pname, GLfloat *params);
+GLAPI PFNGLGETTEXLEVELPARAMETERFVPROC glad_glGetTexLevelParameterfv;
+#define glGetTexLevelParameterfv glad_glGetTexLevelParameterfv
+typedef void (APIENTRYP PFNGLGETTEXLEVELPARAMETERIVPROC)(GLenum target, GLint level, GLenum pname, GLint *params);
+GLAPI PFNGLGETTEXLEVELPARAMETERIVPROC glad_glGetTexLevelParameteriv;
+#define glGetTexLevelParameteriv glad_glGetTexLevelParameteriv
+typedef GLboolean (APIENTRYP PFNGLISENABLEDPROC)(GLenum cap);
+GLAPI PFNGLISENABLEDPROC glad_glIsEnabled;
+#define glIsEnabled glad_glIsEnabled
+typedef void (APIENTRYP PFNGLDEPTHRANGEPROC)(GLdouble n, GLdouble f);
+GLAPI PFNGLDEPTHRANGEPROC glad_glDepthRange;
+#define glDepthRange glad_glDepthRange
+typedef void (APIENTRYP PFNGLVIEWPORTPROC)(GLint x, GLint y, GLsizei width, GLsizei height);
+GLAPI PFNGLVIEWPORTPROC glad_glViewport;
+#define glViewport glad_glViewport
+typedef void (APIENTRYP PFNGLNEWLISTPROC)(GLuint list, GLenum mode);
+GLAPI PFNGLNEWLISTPROC glad_glNewList;
+#define glNewList glad_glNewList
+typedef void (APIENTRYP PFNGLENDLISTPROC)(void);
+GLAPI PFNGLENDLISTPROC glad_glEndList;
+#define glEndList glad_glEndList
+typedef void (APIENTRYP PFNGLCALLLISTPROC)(GLuint list);
+GLAPI PFNGLCALLLISTPROC glad_glCallList;
+#define glCallList glad_glCallList
+typedef void (APIENTRYP PFNGLCALLLISTSPROC)(GLsizei n, GLenum type, const void *lists);
+GLAPI PFNGLCALLLISTSPROC glad_glCallLists;
+#define glCallLists glad_glCallLists
+typedef void (APIENTRYP PFNGLDELETELISTSPROC)(GLuint list, GLsizei range);
+GLAPI PFNGLDELETELISTSPROC glad_glDeleteLists;
+#define glDeleteLists glad_glDeleteLists
+typedef GLuint (APIENTRYP PFNGLGENLISTSPROC)(GLsizei range);
+GLAPI PFNGLGENLISTSPROC glad_glGenLists;
+#define glGenLists glad_glGenLists
+typedef void (APIENTRYP PFNGLLISTBASEPROC)(GLuint base);
+GLAPI PFNGLLISTBASEPROC glad_glListBase;
+#define glListBase glad_glListBase
+typedef void (APIENTRYP PFNGLBEGINPROC)(GLenum mode);
+GLAPI PFNGLBEGINPROC glad_glBegin;
+#define glBegin glad_glBegin
+typedef void (APIENTRYP PFNGLBITMAPPROC)(GLsizei width, GLsizei height, GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove, const GLubyte *bitmap);
+GLAPI PFNGLBITMAPPROC glad_glBitmap;
+#define glBitmap glad_glBitmap
+typedef void (APIENTRYP PFNGLCOLOR3BPROC)(GLbyte red, GLbyte green, GLbyte blue);
+GLAPI PFNGLCOLOR3BPROC glad_glColor3b;
+#define glColor3b glad_glColor3b
+typedef void (APIENTRYP PFNGLCOLOR3BVPROC)(const GLbyte *v);
+GLAPI PFNGLCOLOR3BVPROC glad_glColor3bv;
+#define glColor3bv glad_glColor3bv
+typedef void (APIENTRYP PFNGLCOLOR3DPROC)(GLdouble red, GLdouble green, GLdouble blue);
+GLAPI PFNGLCOLOR3DPROC glad_glColor3d;
+#define glColor3d glad_glColor3d
+typedef void (APIENTRYP PFNGLCOLOR3DVPROC)(const GLdouble *v);
+GLAPI PFNGLCOLOR3DVPROC glad_glColor3dv;
+#define glColor3dv glad_glColor3dv
+typedef void (APIENTRYP PFNGLCOLOR3FPROC)(GLfloat red, GLfloat green, GLfloat blue);
+GLAPI PFNGLCOLOR3FPROC glad_glColor3f;
+#define glColor3f glad_glColor3f
+typedef void (APIENTRYP PFNGLCOLOR3FVPROC)(const GLfloat *v);
+GLAPI PFNGLCOLOR3FVPROC glad_glColor3fv;
+#define glColor3fv glad_glColor3fv
+typedef void (APIENTRYP PFNGLCOLOR3IPROC)(GLint red, GLint green, GLint blue);
+GLAPI PFNGLCOLOR3IPROC glad_glColor3i;
+#define glColor3i glad_glColor3i
+typedef void (APIENTRYP PFNGLCOLOR3IVPROC)(const GLint *v);
+GLAPI PFNGLCOLOR3IVPROC glad_glColor3iv;
+#define glColor3iv glad_glColor3iv
+typedef void (APIENTRYP PFNGLCOLOR3SPROC)(GLshort red, GLshort green, GLshort blue);
+GLAPI PFNGLCOLOR3SPROC glad_glColor3s;
+#define glColor3s glad_glColor3s
+typedef void (APIENTRYP PFNGLCOLOR3SVPROC)(const GLshort *v);
+GLAPI PFNGLCOLOR3SVPROC glad_glColor3sv;
+#define glColor3sv glad_glColor3sv
+typedef void (APIENTRYP PFNGLCOLOR3UBPROC)(GLubyte red, GLubyte green, GLubyte blue);
+GLAPI PFNGLCOLOR3UBPROC glad_glColor3ub;
+#define glColor3ub glad_glColor3ub
+typedef void (APIENTRYP PFNGLCOLOR3UBVPROC)(const GLubyte *v);
+GLAPI PFNGLCOLOR3UBVPROC glad_glColor3ubv;
+#define glColor3ubv glad_glColor3ubv
+typedef void (APIENTRYP PFNGLCOLOR3UIPROC)(GLuint red, GLuint green, GLuint blue);
+GLAPI PFNGLCOLOR3UIPROC glad_glColor3ui;
+#define glColor3ui glad_glColor3ui
+typedef void (APIENTRYP PFNGLCOLOR3UIVPROC)(const GLuint *v);
+GLAPI PFNGLCOLOR3UIVPROC glad_glColor3uiv;
+#define glColor3uiv glad_glColor3uiv
+typedef void (APIENTRYP PFNGLCOLOR3USPROC)(GLushort red, GLushort green, GLushort blue);
+GLAPI PFNGLCOLOR3USPROC glad_glColor3us;
+#define glColor3us glad_glColor3us
+typedef void (APIENTRYP PFNGLCOLOR3USVPROC)(const GLushort *v);
+GLAPI PFNGLCOLOR3USVPROC glad_glColor3usv;
+#define glColor3usv glad_glColor3usv
+typedef void (APIENTRYP PFNGLCOLOR4BPROC)(GLbyte red, GLbyte green, GLbyte blue, GLbyte alpha);
+GLAPI PFNGLCOLOR4BPROC glad_glColor4b;
+#define glColor4b glad_glColor4b
+typedef void (APIENTRYP PFNGLCOLOR4BVPROC)(const GLbyte *v);
+GLAPI PFNGLCOLOR4BVPROC glad_glColor4bv;
+#define glColor4bv glad_glColor4bv
+typedef void (APIENTRYP PFNGLCOLOR4DPROC)(GLdouble red, GLdouble green, GLdouble blue, GLdouble alpha);
+GLAPI PFNGLCOLOR4DPROC glad_glColor4d;
+#define glColor4d glad_glColor4d
+typedef void (APIENTRYP PFNGLCOLOR4DVPROC)(const GLdouble *v);
+GLAPI PFNGLCOLOR4DVPROC glad_glColor4dv;
+#define glColor4dv glad_glColor4dv
+typedef void (APIENTRYP PFNGLCOLOR4FPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
+GLAPI PFNGLCOLOR4FPROC glad_glColor4f;
+#define glColor4f glad_glColor4f
+typedef void (APIENTRYP PFNGLCOLOR4FVPROC)(const GLfloat *v);
+GLAPI PFNGLCOLOR4FVPROC glad_glColor4fv;
+#define glColor4fv glad_glColor4fv
+typedef void (APIENTRYP PFNGLCOLOR4IPROC)(GLint red, GLint green, GLint blue, GLint alpha);
+GLAPI PFNGLCOLOR4IPROC glad_glColor4i;
+#define glColor4i glad_glColor4i
+typedef void (APIENTRYP PFNGLCOLOR4IVPROC)(const GLint *v);
+GLAPI PFNGLCOLOR4IVPROC glad_glColor4iv;
+#define glColor4iv glad_glColor4iv
+typedef void (APIENTRYP PFNGLCOLOR4SPROC)(GLshort red, GLshort green, GLshort blue, GLshort alpha);
+GLAPI PFNGLCOLOR4SPROC glad_glColor4s;
+#define glColor4s glad_glColor4s
+typedef void (APIENTRYP PFNGLCOLOR4SVPROC)(const GLshort *v);
+GLAPI PFNGLCOLOR4SVPROC glad_glColor4sv;
+#define glColor4sv glad_glColor4sv
+typedef void (APIENTRYP PFNGLCOLOR4UBPROC)(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha);
+GLAPI PFNGLCOLOR4UBPROC glad_glColor4ub;
+#define glColor4ub glad_glColor4ub
+typedef void (APIENTRYP PFNGLCOLOR4UBVPROC)(const GLubyte *v);
+GLAPI PFNGLCOLOR4UBVPROC glad_glColor4ubv;
+#define glColor4ubv glad_glColor4ubv
+typedef void (APIENTRYP PFNGLCOLOR4UIPROC)(GLuint red, GLuint green, GLuint blue, GLuint alpha);
+GLAPI PFNGLCOLOR4UIPROC glad_glColor4ui;
+#define glColor4ui glad_glColor4ui
+typedef void (APIENTRYP PFNGLCOLOR4UIVPROC)(const GLuint *v);
+GLAPI PFNGLCOLOR4UIVPROC glad_glColor4uiv;
+#define glColor4uiv glad_glColor4uiv
+typedef void (APIENTRYP PFNGLCOLOR4USPROC)(GLushort red, GLushort green, GLushort blue, GLushort alpha);
+GLAPI PFNGLCOLOR4USPROC glad_glColor4us;
+#define glColor4us glad_glColor4us
+typedef void (APIENTRYP PFNGLCOLOR4USVPROC)(const GLushort *v);
+GLAPI PFNGLCOLOR4USVPROC glad_glColor4usv;
+#define glColor4usv glad_glColor4usv
+typedef void (APIENTRYP PFNGLEDGEFLAGPROC)(GLboolean flag);
+GLAPI PFNGLEDGEFLAGPROC glad_glEdgeFlag;
+#define glEdgeFlag glad_glEdgeFlag
+typedef void (APIENTRYP PFNGLEDGEFLAGVPROC)(const GLboolean *flag);
+GLAPI PFNGLEDGEFLAGVPROC glad_glEdgeFlagv;
+#define glEdgeFlagv glad_glEdgeFlagv
+typedef void (APIENTRYP PFNGLENDPROC)(void);
+GLAPI PFNGLENDPROC glad_glEnd;
+#define glEnd glad_glEnd
+typedef void (APIENTRYP PFNGLINDEXDPROC)(GLdouble c);
+GLAPI PFNGLINDEXDPROC glad_glIndexd;
+#define glIndexd glad_glIndexd
+typedef void (APIENTRYP PFNGLINDEXDVPROC)(const GLdouble *c);
+GLAPI PFNGLINDEXDVPROC glad_glIndexdv;
+#define glIndexdv glad_glIndexdv
+typedef void (APIENTRYP PFNGLINDEXFPROC)(GLfloat c);
+GLAPI PFNGLINDEXFPROC glad_glIndexf;
+#define glIndexf glad_glIndexf
+typedef void (APIENTRYP PFNGLINDEXFVPROC)(const GLfloat *c);
+GLAPI PFNGLINDEXFVPROC glad_glIndexfv;
+#define glIndexfv glad_glIndexfv
+typedef void (APIENTRYP PFNGLINDEXIPROC)(GLint c);
+GLAPI PFNGLINDEXIPROC glad_glIndexi;
+#define glIndexi glad_glIndexi
+typedef void (APIENTRYP PFNGLINDEXIVPROC)(const GLint *c);
+GLAPI PFNGLINDEXIVPROC glad_glIndexiv;
+#define glIndexiv glad_glIndexiv
+typedef void (APIENTRYP PFNGLINDEXSPROC)(GLshort c);
+GLAPI PFNGLINDEXSPROC glad_glIndexs;
+#define glIndexs glad_glIndexs
+typedef void (APIENTRYP PFNGLINDEXSVPROC)(const GLshort *c);
+GLAPI PFNGLINDEXSVPROC glad_glIndexsv;
+#define glIndexsv glad_glIndexsv
+typedef void (APIENTRYP PFNGLNORMAL3BPROC)(GLbyte nx, GLbyte ny, GLbyte nz);
+GLAPI PFNGLNORMAL3BPROC glad_glNormal3b;
+#define glNormal3b glad_glNormal3b
+typedef void (APIENTRYP PFNGLNORMAL3BVPROC)(const GLbyte *v);
+GLAPI PFNGLNORMAL3BVPROC glad_glNormal3bv;
+#define glNormal3bv glad_glNormal3bv
+typedef void (APIENTRYP PFNGLNORMAL3DPROC)(GLdouble nx, GLdouble ny, GLdouble nz);
+GLAPI PFNGLNORMAL3DPROC glad_glNormal3d;
+#define glNormal3d glad_glNormal3d
+typedef void (APIENTRYP PFNGLNORMAL3DVPROC)(const GLdouble *v);
+GLAPI PFNGLNORMAL3DVPROC glad_glNormal3dv;
+#define glNormal3dv glad_glNormal3dv
+typedef void (APIENTRYP PFNGLNORMAL3FPROC)(GLfloat nx, GLfloat ny, GLfloat nz);
+GLAPI PFNGLNORMAL3FPROC glad_glNormal3f;
+#define glNormal3f glad_glNormal3f
+typedef void (APIENTRYP PFNGLNORMAL3FVPROC)(const GLfloat *v);
+GLAPI PFNGLNORMAL3FVPROC glad_glNormal3fv;
+#define glNormal3fv glad_glNormal3fv
+typedef void (APIENTRYP PFNGLNORMAL3IPROC)(GLint nx, GLint ny, GLint nz);
+GLAPI PFNGLNORMAL3IPROC glad_glNormal3i;
+#define glNormal3i glad_glNormal3i
+typedef void (APIENTRYP PFNGLNORMAL3IVPROC)(const GLint *v);
+GLAPI PFNGLNORMAL3IVPROC glad_glNormal3iv;
+#define glNormal3iv glad_glNormal3iv
+typedef void (APIENTRYP PFNGLNORMAL3SPROC)(GLshort nx, GLshort ny, GLshort nz);
+GLAPI PFNGLNORMAL3SPROC glad_glNormal3s;
+#define glNormal3s glad_glNormal3s
+typedef void (APIENTRYP PFNGLNORMAL3SVPROC)(const GLshort *v);
+GLAPI PFNGLNORMAL3SVPROC glad_glNormal3sv;
+#define glNormal3sv glad_glNormal3sv
+typedef void (APIENTRYP PFNGLRASTERPOS2DPROC)(GLdouble x, GLdouble y);
+GLAPI PFNGLRASTERPOS2DPROC glad_glRasterPos2d;
+#define glRasterPos2d glad_glRasterPos2d
+typedef void (APIENTRYP PFNGLRASTERPOS2DVPROC)(const GLdouble *v);
+GLAPI PFNGLRASTERPOS2DVPROC glad_glRasterPos2dv;
+#define glRasterPos2dv glad_glRasterPos2dv
+typedef void (APIENTRYP PFNGLRASTERPOS2FPROC)(GLfloat x, GLfloat y);
+GLAPI PFNGLRASTERPOS2FPROC glad_glRasterPos2f;
+#define glRasterPos2f glad_glRasterPos2f
+typedef void (APIENTRYP PFNGLRASTERPOS2FVPROC)(const GLfloat *v);
+GLAPI PFNGLRASTERPOS2FVPROC glad_glRasterPos2fv;
+#define glRasterPos2fv glad_glRasterPos2fv
+typedef void (APIENTRYP PFNGLRASTERPOS2IPROC)(GLint x, GLint y);
+GLAPI PFNGLRASTERPOS2IPROC glad_glRasterPos2i;
+#define glRasterPos2i glad_glRasterPos2i
+typedef void (APIENTRYP PFNGLRASTERPOS2IVPROC)(const GLint *v);
+GLAPI PFNGLRASTERPOS2IVPROC glad_glRasterPos2iv;
+#define glRasterPos2iv glad_glRasterPos2iv
+typedef void (APIENTRYP PFNGLRASTERPOS2SPROC)(GLshort x, GLshort y);
+GLAPI PFNGLRASTERPOS2SPROC glad_glRasterPos2s;
+#define glRasterPos2s glad_glRasterPos2s
+typedef void (APIENTRYP PFNGLRASTERPOS2SVPROC)(const GLshort *v);
+GLAPI PFNGLRASTERPOS2SVPROC glad_glRasterPos2sv;
+#define glRasterPos2sv glad_glRasterPos2sv
+typedef void (APIENTRYP PFNGLRASTERPOS3DPROC)(GLdouble x, GLdouble y, GLdouble z);
+GLAPI PFNGLRASTERPOS3DPROC glad_glRasterPos3d;
+#define glRasterPos3d glad_glRasterPos3d
+typedef void (APIENTRYP PFNGLRASTERPOS3DVPROC)(const GLdouble *v);
+GLAPI PFNGLRASTERPOS3DVPROC glad_glRasterPos3dv;
+#define glRasterPos3dv glad_glRasterPos3dv
+typedef void (APIENTRYP PFNGLRASTERPOS3FPROC)(GLfloat x, GLfloat y, GLfloat z);
+GLAPI PFNGLRASTERPOS3FPROC glad_glRasterPos3f;
+#define glRasterPos3f glad_glRasterPos3f
+typedef void (APIENTRYP PFNGLRASTERPOS3FVPROC)(const GLfloat *v);
+GLAPI PFNGLRASTERPOS3FVPROC glad_glRasterPos3fv;
+#define glRasterPos3fv glad_glRasterPos3fv
+typedef void (APIENTRYP PFNGLRASTERPOS3IPROC)(GLint x, GLint y, GLint z);
+GLAPI PFNGLRASTERPOS3IPROC glad_glRasterPos3i;
+#define glRasterPos3i glad_glRasterPos3i
+typedef void (APIENTRYP PFNGLRASTERPOS3IVPROC)(const GLint *v);
+GLAPI PFNGLRASTERPOS3IVPROC glad_glRasterPos3iv;
+#define glRasterPos3iv glad_glRasterPos3iv
+typedef void (APIENTRYP PFNGLRASTERPOS3SPROC)(GLshort x, GLshort y, GLshort z);
+GLAPI PFNGLRASTERPOS3SPROC glad_glRasterPos3s;
+#define glRasterPos3s glad_glRasterPos3s
+typedef void (APIENTRYP PFNGLRASTERPOS3SVPROC)(const GLshort *v);
+GLAPI PFNGLRASTERPOS3SVPROC glad_glRasterPos3sv;
+#define glRasterPos3sv glad_glRasterPos3sv
+typedef void (APIENTRYP PFNGLRASTERPOS4DPROC)(GLdouble x, GLdouble y, GLdouble z, GLdouble w);
+GLAPI PFNGLRASTERPOS4DPROC glad_glRasterPos4d;
+#define glRasterPos4d glad_glRasterPos4d
+typedef void (APIENTRYP PFNGLRASTERPOS4DVPROC)(const GLdouble *v);
+GLAPI PFNGLRASTERPOS4DVPROC glad_glRasterPos4dv;
+#define glRasterPos4dv glad_glRasterPos4dv
+typedef void (APIENTRYP PFNGLRASTERPOS4FPROC)(GLfloat x, GLfloat y, GLfloat z, GLfloat w);
+GLAPI PFNGLRASTERPOS4FPROC glad_glRasterPos4f;
+#define glRasterPos4f glad_glRasterPos4f
+typedef void (APIENTRYP PFNGLRASTERPOS4FVPROC)(const GLfloat *v);
+GLAPI PFNGLRASTERPOS4FVPROC glad_glRasterPos4fv;
+#define glRasterPos4fv glad_glRasterPos4fv
+typedef void (APIENTRYP PFNGLRASTERPOS4IPROC)(GLint x, GLint y, GLint z, GLint w);
+GLAPI PFNGLRASTERPOS4IPROC glad_glRasterPos4i;
+#define glRasterPos4i glad_glRasterPos4i
+typedef void (APIENTRYP PFNGLRASTERPOS4IVPROC)(const GLint *v);
+GLAPI PFNGLRASTERPOS4IVPROC glad_glRasterPos4iv;
+#define glRasterPos4iv glad_glRasterPos4iv
+typedef void (APIENTRYP PFNGLRASTERPOS4SPROC)(GLshort x, GLshort y, GLshort z, GLshort w);
+GLAPI PFNGLRASTERPOS4SPROC glad_glRasterPos4s;
+#define glRasterPos4s glad_glRasterPos4s
+typedef void (APIENTRYP PFNGLRASTERPOS4SVPROC)(const GLshort *v);
+GLAPI PFNGLRASTERPOS4SVPROC glad_glRasterPos4sv;
+#define glRasterPos4sv glad_glRasterPos4sv
+typedef void (APIENTRYP PFNGLRECTDPROC)(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2);
+GLAPI PFNGLRECTDPROC glad_glRectd;
+#define glRectd glad_glRectd
+typedef void (APIENTRYP PFNGLRECTDVPROC)(const GLdouble *v1, const GLdouble *v2);
+GLAPI PFNGLRECTDVPROC glad_glRectdv;
+#define glRectdv glad_glRectdv
+typedef void (APIENTRYP PFNGLRECTFPROC)(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2);
+GLAPI PFNGLRECTFPROC glad_glRectf;
+#define glRectf glad_glRectf
+typedef void (APIENTRYP PFNGLRECTFVPROC)(const GLfloat *v1, const GLfloat *v2);
+GLAPI PFNGLRECTFVPROC glad_glRectfv;
+#define glRectfv glad_glRectfv
+typedef void (APIENTRYP PFNGLRECTIPROC)(GLint x1, GLint y1, GLint x2, GLint y2);
+GLAPI PFNGLRECTIPROC glad_glRecti;
+#define glRecti glad_glRecti
+typedef void (APIENTRYP PFNGLRECTIVPROC)(const GLint *v1, const GLint *v2);
+GLAPI PFNGLRECTIVPROC glad_glRectiv;
+#define glRectiv glad_glRectiv
+typedef void (APIENTRYP PFNGLRECTSPROC)(GLshort x1, GLshort y1, GLshort x2, GLshort y2);
+GLAPI PFNGLRECTSPROC glad_glRects;
+#define glRects glad_glRects
+typedef void (APIENTRYP PFNGLRECTSVPROC)(const GLshort *v1, const GLshort *v2);
+GLAPI PFNGLRECTSVPROC glad_glRectsv;
+#define glRectsv glad_glRectsv
+typedef void (APIENTRYP PFNGLTEXCOORD1DPROC)(GLdouble s);
+GLAPI PFNGLTEXCOORD1DPROC glad_glTexCoord1d;
+#define glTexCoord1d glad_glTexCoord1d
+typedef void (APIENTRYP PFNGLTEXCOORD1DVPROC)(const GLdouble *v);
+GLAPI PFNGLTEXCOORD1DVPROC glad_glTexCoord1dv;
+#define glTexCoord1dv glad_glTexCoord1dv
+typedef void (APIENTRYP PFNGLTEXCOORD1FPROC)(GLfloat s);
+GLAPI PFNGLTEXCOORD1FPROC glad_glTexCoord1f;
+#define glTexCoord1f glad_glTexCoord1f
+typedef void (APIENTRYP PFNGLTEXCOORD1FVPROC)(const GLfloat *v);
+GLAPI PFNGLTEXCOORD1FVPROC glad_glTexCoord1fv;
+#define glTexCoord1fv glad_glTexCoord1fv
+typedef void (APIENTRYP PFNGLTEXCOORD1IPROC)(GLint s);
+GLAPI PFNGLTEXCOORD1IPROC glad_glTexCoord1i;
+#define glTexCoord1i glad_glTexCoord1i
+typedef void (APIENTRYP PFNGLTEXCOORD1IVPROC)(const GLint *v);
+GLAPI PFNGLTEXCOORD1IVPROC glad_glTexCoord1iv;
+#define glTexCoord1iv glad_glTexCoord1iv
+typedef void (APIENTRYP PFNGLTEXCOORD1SPROC)(GLshort s);
+GLAPI PFNGLTEXCOORD1SPROC glad_glTexCoord1s;
+#define glTexCoord1s glad_glTexCoord1s
+typedef void (APIENTRYP PFNGLTEXCOORD1SVPROC)(const GLshort *v);
+GLAPI PFNGLTEXCOORD1SVPROC glad_glTexCoord1sv;
+#define glTexCoord1sv glad_glTexCoord1sv
+typedef void (APIENTRYP PFNGLTEXCOORD2DPROC)(GLdouble s, GLdouble t);
+GLAPI PFNGLTEXCOORD2DPROC glad_glTexCoord2d;
+#define glTexCoord2d glad_glTexCoord2d
+typedef void (APIENTRYP PFNGLTEXCOORD2DVPROC)(const GLdouble *v);
+GLAPI PFNGLTEXCOORD2DVPROC glad_glTexCoord2dv;
+#define glTexCoord2dv glad_glTexCoord2dv
+typedef void (APIENTRYP PFNGLTEXCOORD2FPROC)(GLfloat s, GLfloat t);
+GLAPI PFNGLTEXCOORD2FPROC glad_glTexCoord2f;
+#define glTexCoord2f glad_glTexCoord2f
+typedef void (APIENTRYP PFNGLTEXCOORD2FVPROC)(const GLfloat *v);
+GLAPI PFNGLTEXCOORD2FVPROC glad_glTexCoord2fv;
+#define glTexCoord2fv glad_glTexCoord2fv
+typedef void (APIENTRYP PFNGLTEXCOORD2IPROC)(GLint s, GLint t);
+GLAPI PFNGLTEXCOORD2IPROC glad_glTexCoord2i;
+#define glTexCoord2i glad_glTexCoord2i
+typedef void (APIENTRYP PFNGLTEXCOORD2IVPROC)(const GLint *v);
+GLAPI PFNGLTEXCOORD2IVPROC glad_glTexCoord2iv;
+#define glTexCoord2iv glad_glTexCoord2iv
+typedef void (APIENTRYP PFNGLTEXCOORD2SPROC)(GLshort s, GLshort t);
+GLAPI PFNGLTEXCOORD2SPROC glad_glTexCoord2s;
+#define glTexCoord2s glad_glTexCoord2s
+typedef void (APIENTRYP PFNGLTEXCOORD2SVPROC)(const GLshort *v);
+GLAPI PFNGLTEXCOORD2SVPROC glad_glTexCoord2sv;
+#define glTexCoord2sv glad_glTexCoord2sv
+typedef void (APIENTRYP PFNGLTEXCOORD3DPROC)(GLdouble s, GLdouble t, GLdouble r);
+GLAPI PFNGLTEXCOORD3DPROC glad_glTexCoord3d;
+#define glTexCoord3d glad_glTexCoord3d
+typedef void (APIENTRYP PFNGLTEXCOORD3DVPROC)(const GLdouble *v);
+GLAPI PFNGLTEXCOORD3DVPROC glad_glTexCoord3dv;
+#define glTexCoord3dv glad_glTexCoord3dv
+typedef void (APIENTRYP PFNGLTEXCOORD3FPROC)(GLfloat s, GLfloat t, GLfloat r);
+GLAPI PFNGLTEXCOORD3FPROC glad_glTexCoord3f;
+#define glTexCoord3f glad_glTexCoord3f
+typedef void (APIENTRYP PFNGLTEXCOORD3FVPROC)(const GLfloat *v);
+GLAPI PFNGLTEXCOORD3FVPROC glad_glTexCoord3fv;
+#define glTexCoord3fv glad_glTexCoord3fv
+typedef void (APIENTRYP PFNGLTEXCOORD3IPROC)(GLint s, GLint t, GLint r);
+GLAPI PFNGLTEXCOORD3IPROC glad_glTexCoord3i;
+#define glTexCoord3i glad_glTexCoord3i
+typedef void (APIENTRYP PFNGLTEXCOORD3IVPROC)(const GLint *v);
+GLAPI PFNGLTEXCOORD3IVPROC glad_glTexCoord3iv;
+#define glTexCoord3iv glad_glTexCoord3iv
+typedef void (APIENTRYP PFNGLTEXCOORD3SPROC)(GLshort s, GLshort t, GLshort r);
+GLAPI PFNGLTEXCOORD3SPROC glad_glTexCoord3s;
+#define glTexCoord3s glad_glTexCoord3s
+typedef void (APIENTRYP PFNGLTEXCOORD3SVPROC)(const GLshort *v);
+GLAPI PFNGLTEXCOORD3SVPROC glad_glTexCoord3sv;
+#define glTexCoord3sv glad_glTexCoord3sv
+typedef void (APIENTRYP PFNGLTEXCOORD4DPROC)(GLdouble s, GLdouble t, GLdouble r, GLdouble q);
+GLAPI PFNGLTEXCOORD4DPROC glad_glTexCoord4d;
+#define glTexCoord4d glad_glTexCoord4d
+typedef void (APIENTRYP PFNGLTEXCOORD4DVPROC)(const GLdouble *v);
+GLAPI PFNGLTEXCOORD4DVPROC glad_glTexCoord4dv;
+#define glTexCoord4dv glad_glTexCoord4dv
+typedef void (APIENTRYP PFNGLTEXCOORD4FPROC)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
+GLAPI PFNGLTEXCOORD4FPROC glad_glTexCoord4f;
+#define glTexCoord4f glad_glTexCoord4f
+typedef void (APIENTRYP PFNGLTEXCOORD4FVPROC)(const GLfloat *v);
+GLAPI PFNGLTEXCOORD4FVPROC glad_glTexCoord4fv;
+#define glTexCoord4fv glad_glTexCoord4fv
+typedef void (APIENTRYP PFNGLTEXCOORD4IPROC)(GLint s, GLint t, GLint r, GLint q);
+GLAPI PFNGLTEXCOORD4IPROC glad_glTexCoord4i;
+#define glTexCoord4i glad_glTexCoord4i
+typedef void (APIENTRYP PFNGLTEXCOORD4IVPROC)(const GLint *v);
+GLAPI PFNGLTEXCOORD4IVPROC glad_glTexCoord4iv;
+#define glTexCoord4iv glad_glTexCoord4iv
+typedef void (APIENTRYP PFNGLTEXCOORD4SPROC)(GLshort s, GLshort t, GLshort r, GLshort q);
+GLAPI PFNGLTEXCOORD4SPROC glad_glTexCoord4s;
+#define glTexCoord4s glad_glTexCoord4s
+typedef void (APIENTRYP PFNGLTEXCOORD4SVPROC)(const GLshort *v);
+GLAPI PFNGLTEXCOORD4SVPROC glad_glTexCoord4sv;
+#define glTexCoord4sv glad_glTexCoord4sv
+typedef void (APIENTRYP PFNGLVERTEX2DPROC)(GLdouble x, GLdouble y);
+GLAPI PFNGLVERTEX2DPROC glad_glVertex2d;
+#define glVertex2d glad_glVertex2d
+typedef void (APIENTRYP PFNGLVERTEX2DVPROC)(const GLdouble *v);
+GLAPI PFNGLVERTEX2DVPROC glad_glVertex2dv;
+#define glVertex2dv glad_glVertex2dv
+typedef void (APIENTRYP PFNGLVERTEX2FPROC)(GLfloat x, GLfloat y);
+GLAPI PFNGLVERTEX2FPROC glad_glVertex2f;
+#define glVertex2f glad_glVertex2f
+typedef void (APIENTRYP PFNGLVERTEX2FVPROC)(const GLfloat *v);
+GLAPI PFNGLVERTEX2FVPROC glad_glVertex2fv;
+#define glVertex2fv glad_glVertex2fv
+typedef void (APIENTRYP PFNGLVERTEX2IPROC)(GLint x, GLint y);
+GLAPI PFNGLVERTEX2IPROC glad_glVertex2i;
+#define glVertex2i glad_glVertex2i
+typedef void (APIENTRYP PFNGLVERTEX2IVPROC)(const GLint *v);
+GLAPI PFNGLVERTEX2IVPROC glad_glVertex2iv;
+#define glVertex2iv glad_glVertex2iv
+typedef void (APIENTRYP PFNGLVERTEX2SPROC)(GLshort x, GLshort y);
+GLAPI PFNGLVERTEX2SPROC glad_glVertex2s;
+#define glVertex2s glad_glVertex2s
+typedef void (APIENTRYP PFNGLVERTEX2SVPROC)(const GLshort *v);
+GLAPI PFNGLVERTEX2SVPROC glad_glVertex2sv;
+#define glVertex2sv glad_glVertex2sv
+typedef void (APIENTRYP PFNGLVERTEX3DPROC)(GLdouble x, GLdouble y, GLdouble z);
+GLAPI PFNGLVERTEX3DPROC glad_glVertex3d;
+#define glVertex3d glad_glVertex3d
+typedef void (APIENTRYP PFNGLVERTEX3DVPROC)(const GLdouble *v);
+GLAPI PFNGLVERTEX3DVPROC glad_glVertex3dv;
+#define glVertex3dv glad_glVertex3dv
+typedef void (APIENTRYP PFNGLVERTEX3FPROC)(GLfloat x, GLfloat y, GLfloat z);
+GLAPI PFNGLVERTEX3FPROC glad_glVertex3f;
+#define glVertex3f glad_glVertex3f
+typedef void (APIENTRYP PFNGLVERTEX3FVPROC)(const GLfloat *v);
+GLAPI PFNGLVERTEX3FVPROC glad_glVertex3fv;
+#define glVertex3fv glad_glVertex3fv
+typedef void (APIENTRYP PFNGLVERTEX3IPROC)(GLint x, GLint y, GLint z);
+GLAPI PFNGLVERTEX3IPROC glad_glVertex3i;
+#define glVertex3i glad_glVertex3i
+typedef void (APIENTRYP PFNGLVERTEX3IVPROC)(const GLint *v);
+GLAPI PFNGLVERTEX3IVPROC glad_glVertex3iv;
+#define glVertex3iv glad_glVertex3iv
+typedef void (APIENTRYP PFNGLVERTEX3SPROC)(GLshort x, GLshort y, GLshort z);
+GLAPI PFNGLVERTEX3SPROC glad_glVertex3s;
+#define glVertex3s glad_glVertex3s
+typedef void (APIENTRYP PFNGLVERTEX3SVPROC)(const GLshort *v);
+GLAPI PFNGLVERTEX3SVPROC glad_glVertex3sv;
+#define glVertex3sv glad_glVertex3sv
+typedef void (APIENTRYP PFNGLVERTEX4DPROC)(GLdouble x, GLdouble y, GLdouble z, GLdouble w);
+GLAPI PFNGLVERTEX4DPROC glad_glVertex4d;
+#define glVertex4d glad_glVertex4d
+typedef void (APIENTRYP PFNGLVERTEX4DVPROC)(const GLdouble *v);
+GLAPI PFNGLVERTEX4DVPROC glad_glVertex4dv;
+#define glVertex4dv glad_glVertex4dv
+typedef void (APIENTRYP PFNGLVERTEX4FPROC)(GLfloat x, GLfloat y, GLfloat z, GLfloat w);
+GLAPI PFNGLVERTEX4FPROC glad_glVertex4f;
+#define glVertex4f glad_glVertex4f
+typedef void (APIENTRYP PFNGLVERTEX4FVPROC)(const GLfloat *v);
+GLAPI PFNGLVERTEX4FVPROC glad_glVertex4fv;
+#define glVertex4fv glad_glVertex4fv
+typedef void (APIENTRYP PFNGLVERTEX4IPROC)(GLint x, GLint y, GLint z, GLint w);
+GLAPI PFNGLVERTEX4IPROC glad_glVertex4i;
+#define glVertex4i glad_glVertex4i
+typedef void (APIENTRYP PFNGLVERTEX4IVPROC)(const GLint *v);
+GLAPI PFNGLVERTEX4IVPROC glad_glVertex4iv;
+#define glVertex4iv glad_glVertex4iv
+typedef void (APIENTRYP PFNGLVERTEX4SPROC)(GLshort x, GLshort y, GLshort z, GLshort w);
+GLAPI PFNGLVERTEX4SPROC glad_glVertex4s;
+#define glVertex4s glad_glVertex4s
+typedef void (APIENTRYP PFNGLVERTEX4SVPROC)(const GLshort *v);
+GLAPI PFNGLVERTEX4SVPROC glad_glVertex4sv;
+#define glVertex4sv glad_glVertex4sv
+typedef void (APIENTRYP PFNGLCLIPPLANEPROC)(GLenum plane, const GLdouble *equation);
+GLAPI PFNGLCLIPPLANEPROC glad_glClipPlane;
+#define glClipPlane glad_glClipPlane
+typedef void (APIENTRYP PFNGLCOLORMATERIALPROC)(GLenum face, GLenum mode);
+GLAPI PFNGLCOLORMATERIALPROC glad_glColorMaterial;
+#define glColorMaterial glad_glColorMaterial
+typedef void (APIENTRYP PFNGLFOGFPROC)(GLenum pname, GLfloat param);
+GLAPI PFNGLFOGFPROC glad_glFogf;
+#define glFogf glad_glFogf
+typedef void (APIENTRYP PFNGLFOGFVPROC)(GLenum pname, const GLfloat *params);
+GLAPI PFNGLFOGFVPROC glad_glFogfv;
+#define glFogfv glad_glFogfv
+typedef void (APIENTRYP PFNGLFOGIPROC)(GLenum pname, GLint param);
+GLAPI PFNGLFOGIPROC glad_glFogi;
+#define glFogi glad_glFogi
+typedef void (APIENTRYP PFNGLFOGIVPROC)(GLenum pname, const GLint *params);
+GLAPI PFNGLFOGIVPROC glad_glFogiv;
+#define glFogiv glad_glFogiv
+typedef void (APIENTRYP PFNGLLIGHTFPROC)(GLenum light, GLenum pname, GLfloat param);
+GLAPI PFNGLLIGHTFPROC glad_glLightf;
+#define glLightf glad_glLightf
+typedef void (APIENTRYP PFNGLLIGHTFVPROC)(GLenum light, GLenum pname, const GLfloat *params);
+GLAPI PFNGLLIGHTFVPROC glad_glLightfv;
+#define glLightfv glad_glLightfv
+typedef void (APIENTRYP PFNGLLIGHTIPROC)(GLenum light, GLenum pname, GLint param);
+GLAPI PFNGLLIGHTIPROC glad_glLighti;
+#define glLighti glad_glLighti
+typedef void (APIENTRYP PFNGLLIGHTIVPROC)(GLenum light, GLenum pname, const GLint *params);
+GLAPI PFNGLLIGHTIVPROC glad_glLightiv;
+#define glLightiv glad_glLightiv
+typedef void (APIENTRYP PFNGLLIGHTMODELFPROC)(GLenum pname, GLfloat param);
+GLAPI PFNGLLIGHTMODELFPROC glad_glLightModelf;
+#define glLightModelf glad_glLightModelf
+typedef void (APIENTRYP PFNGLLIGHTMODELFVPROC)(GLenum pname, const GLfloat *params);
+GLAPI PFNGLLIGHTMODELFVPROC glad_glLightModelfv;
+#define glLightModelfv glad_glLightModelfv
+typedef void (APIENTRYP PFNGLLIGHTMODELIPROC)(GLenum pname, GLint param);
+GLAPI PFNGLLIGHTMODELIPROC glad_glLightModeli;
+#define glLightModeli glad_glLightModeli
+typedef void (APIENTRYP PFNGLLIGHTMODELIVPROC)(GLenum pname, const GLint *params);
+GLAPI PFNGLLIGHTMODELIVPROC glad_glLightModeliv;
+#define glLightModeliv glad_glLightModeliv
+typedef void (APIENTRYP PFNGLLINESTIPPLEPROC)(GLint factor, GLushort pattern);
+GLAPI PFNGLLINESTIPPLEPROC glad_glLineStipple;
+#define glLineStipple glad_glLineStipple
+typedef void (APIENTRYP PFNGLMATERIALFPROC)(GLenum face, GLenum pname, GLfloat param);
+GLAPI PFNGLMATERIALFPROC glad_glMaterialf;
+#define glMaterialf glad_glMaterialf
+typedef void (APIENTRYP PFNGLMATERIALFVPROC)(GLenum face, GLenum pname, const GLfloat *params);
+GLAPI PFNGLMATERIALFVPROC glad_glMaterialfv;
+#define glMaterialfv glad_glMaterialfv
+typedef void (APIENTRYP PFNGLMATERIALIPROC)(GLenum face, GLenum pname, GLint param);
+GLAPI PFNGLMATERIALIPROC glad_glMateriali;
+#define glMateriali glad_glMateriali
+typedef void (APIENTRYP PFNGLMATERIALIVPROC)(GLenum face, GLenum pname, const GLint *params);
+GLAPI PFNGLMATERIALIVPROC glad_glMaterialiv;
+#define glMaterialiv glad_glMaterialiv
+typedef void (APIENTRYP PFNGLPOLYGONSTIPPLEPROC)(const GLubyte *mask);
+GLAPI PFNGLPOLYGONSTIPPLEPROC glad_glPolygonStipple;
+#define glPolygonStipple glad_glPolygonStipple
+typedef void (APIENTRYP PFNGLSHADEMODELPROC)(GLenum mode);
+GLAPI PFNGLSHADEMODELPROC glad_glShadeModel;
+#define glShadeModel glad_glShadeModel
+typedef void (APIENTRYP PFNGLTEXENVFPROC)(GLenum target, GLenum pname, GLfloat param);
+GLAPI PFNGLTEXENVFPROC glad_glTexEnvf;
+#define glTexEnvf glad_glTexEnvf
+typedef void (APIENTRYP PFNGLTEXENVFVPROC)(GLenum target, GLenum pname, const GLfloat *params);
+GLAPI PFNGLTEXENVFVPROC glad_glTexEnvfv;
+#define glTexEnvfv glad_glTexEnvfv
+typedef void (APIENTRYP PFNGLTEXENVIPROC)(GLenum target, GLenum pname, GLint param);
+GLAPI PFNGLTEXENVIPROC glad_glTexEnvi;
+#define glTexEnvi glad_glTexEnvi
+typedef void (APIENTRYP PFNGLTEXENVIVPROC)(GLenum target, GLenum pname, const GLint *params);
+GLAPI PFNGLTEXENVIVPROC glad_glTexEnviv;
+#define glTexEnviv glad_glTexEnviv
+typedef void (APIENTRYP PFNGLTEXGENDPROC)(GLenum coord, GLenum pname, GLdouble param);
+GLAPI PFNGLTEXGENDPROC glad_glTexGend;
+#define glTexGend glad_glTexGend
+typedef void (APIENTRYP PFNGLTEXGENDVPROC)(GLenum coord, GLenum pname, const GLdouble *params);
+GLAPI PFNGLTEXGENDVPROC glad_glTexGendv;
+#define glTexGendv glad_glTexGendv
+typedef void (APIENTRYP PFNGLTEXGENFPROC)(GLenum coord, GLenum pname, GLfloat param);
+GLAPI PFNGLTEXGENFPROC glad_glTexGenf;
+#define glTexGenf glad_glTexGenf
+typedef void (APIENTRYP PFNGLTEXGENFVPROC)(GLenum coord, GLenum pname, const GLfloat *params);
+GLAPI PFNGLTEXGENFVPROC glad_glTexGenfv;
+#define glTexGenfv glad_glTexGenfv
+typedef void (APIENTRYP PFNGLTEXGENIPROC)(GLenum coord, GLenum pname, GLint param);
+GLAPI PFNGLTEXGENIPROC glad_glTexGeni;
+#define glTexGeni glad_glTexGeni
+typedef void (APIENTRYP PFNGLTEXGENIVPROC)(GLenum coord, GLenum pname, const GLint *params);
+GLAPI PFNGLTEXGENIVPROC glad_glTexGeniv;
+#define glTexGeniv glad_glTexGeniv
+typedef void (APIENTRYP PFNGLFEEDBACKBUFFERPROC)(GLsizei size, GLenum type, GLfloat *buffer);
+GLAPI PFNGLFEEDBACKBUFFERPROC glad_glFeedbackBuffer;
+#define glFeedbackBuffer glad_glFeedbackBuffer
+typedef void (APIENTRYP PFNGLSELECTBUFFERPROC)(GLsizei size, GLuint *buffer);
+GLAPI PFNGLSELECTBUFFERPROC glad_glSelectBuffer;
+#define glSelectBuffer glad_glSelectBuffer
+typedef GLint (APIENTRYP PFNGLRENDERMODEPROC)(GLenum mode);
+GLAPI PFNGLRENDERMODEPROC glad_glRenderMode;
+#define glRenderMode glad_glRenderMode
+typedef void (APIENTRYP PFNGLINITNAMESPROC)(void);
+GLAPI PFNGLINITNAMESPROC glad_glInitNames;
+#define glInitNames glad_glInitNames
+typedef void (APIENTRYP PFNGLLOADNAMEPROC)(GLuint name);
+GLAPI PFNGLLOADNAMEPROC glad_glLoadName;
+#define glLoadName glad_glLoadName
+typedef void (APIENTRYP PFNGLPASSTHROUGHPROC)(GLfloat token);
+GLAPI PFNGLPASSTHROUGHPROC glad_glPassThrough;
+#define glPassThrough glad_glPassThrough
+typedef void (APIENTRYP PFNGLPOPNAMEPROC)(void);
+GLAPI PFNGLPOPNAMEPROC glad_glPopName;
+#define glPopName glad_glPopName
+typedef void (APIENTRYP PFNGLPUSHNAMEPROC)(GLuint name);
+GLAPI PFNGLPUSHNAMEPROC glad_glPushName;
+#define glPushName glad_glPushName
+typedef void (APIENTRYP PFNGLCLEARACCUMPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
+GLAPI PFNGLCLEARACCUMPROC glad_glClearAccum;
+#define glClearAccum glad_glClearAccum
+typedef void (APIENTRYP PFNGLCLEARINDEXPROC)(GLfloat c);
+GLAPI PFNGLCLEARINDEXPROC glad_glClearIndex;
+#define glClearIndex glad_glClearIndex
+typedef void (APIENTRYP PFNGLINDEXMASKPROC)(GLuint mask);
+GLAPI PFNGLINDEXMASKPROC glad_glIndexMask;
+#define glIndexMask glad_glIndexMask
+typedef void (APIENTRYP PFNGLACCUMPROC)(GLenum op, GLfloat value);
+GLAPI PFNGLACCUMPROC glad_glAccum;
+#define glAccum glad_glAccum
+typedef void (APIENTRYP PFNGLPOPATTRIBPROC)(void);
+GLAPI PFNGLPOPATTRIBPROC glad_glPopAttrib;
+#define glPopAttrib glad_glPopAttrib
+typedef void (APIENTRYP PFNGLPUSHATTRIBPROC)(GLbitfield mask);
+GLAPI PFNGLPUSHATTRIBPROC glad_glPushAttrib;
+#define glPushAttrib glad_glPushAttrib
+typedef void (APIENTRYP PFNGLMAP1DPROC)(GLenum target, GLdouble u1, GLdouble u2, GLint stride, GLint order, const GLdouble *points);
+GLAPI PFNGLMAP1DPROC glad_glMap1d;
+#define glMap1d glad_glMap1d
+typedef void (APIENTRYP PFNGLMAP1FPROC)(GLenum target, GLfloat u1, GLfloat u2, GLint stride, GLint order, const GLfloat *points);
+GLAPI PFNGLMAP1FPROC glad_glMap1f;
+#define glMap1f glad_glMap1f
+typedef void (APIENTRYP PFNGLMAP2DPROC)(GLenum target, GLdouble u1, GLdouble u2, GLint ustride, GLint uorder, GLdouble v1, GLdouble v2, GLint vstride, GLint vorder, const GLdouble *points);
+GLAPI PFNGLMAP2DPROC glad_glMap2d;
+#define glMap2d glad_glMap2d
+typedef void (APIENTRYP PFNGLMAP2FPROC)(GLenum target, GLfloat u1, GLfloat u2, GLint ustride, GLint uorder, GLfloat v1, GLfloat v2, GLint vstride, GLint vorder, const GLfloat *points);
+GLAPI PFNGLMAP2FPROC glad_glMap2f;
+#define glMap2f glad_glMap2f
+typedef void (APIENTRYP PFNGLMAPGRID1DPROC)(GLint un, GLdouble u1, GLdouble u2);
+GLAPI PFNGLMAPGRID1DPROC glad_glMapGrid1d;
+#define glMapGrid1d glad_glMapGrid1d
+typedef void (APIENTRYP PFNGLMAPGRID1FPROC)(GLint un, GLfloat u1, GLfloat u2);
+GLAPI PFNGLMAPGRID1FPROC glad_glMapGrid1f;
+#define glMapGrid1f glad_glMapGrid1f
+typedef void (APIENTRYP PFNGLMAPGRID2DPROC)(GLint un, GLdouble u1, GLdouble u2, GLint vn, GLdouble v1, GLdouble v2);
+GLAPI PFNGLMAPGRID2DPROC glad_glMapGrid2d;
+#define glMapGrid2d glad_glMapGrid2d
+typedef void (APIENTRYP PFNGLMAPGRID2FPROC)(GLint un, GLfloat u1, GLfloat u2, GLint vn, GLfloat v1, GLfloat v2);
+GLAPI PFNGLMAPGRID2FPROC glad_glMapGrid2f;
+#define glMapGrid2f glad_glMapGrid2f
+typedef void (APIENTRYP PFNGLEVALCOORD1DPROC)(GLdouble u);
+GLAPI PFNGLEVALCOORD1DPROC glad_glEvalCoord1d;
+#define glEvalCoord1d glad_glEvalCoord1d
+typedef void (APIENTRYP PFNGLEVALCOORD1DVPROC)(const GLdouble *u);
+GLAPI PFNGLEVALCOORD1DVPROC glad_glEvalCoord1dv;
+#define glEvalCoord1dv glad_glEvalCoord1dv
+typedef void (APIENTRYP PFNGLEVALCOORD1FPROC)(GLfloat u);
+GLAPI PFNGLEVALCOORD1FPROC glad_glEvalCoord1f;
+#define glEvalCoord1f glad_glEvalCoord1f
+typedef void (APIENTRYP PFNGLEVALCOORD1FVPROC)(const GLfloat *u);
+GLAPI PFNGLEVALCOORD1FVPROC glad_glEvalCoord1fv;
+#define glEvalCoord1fv glad_glEvalCoord1fv
+typedef void (APIENTRYP PFNGLEVALCOORD2DPROC)(GLdouble u, GLdouble v);
+GLAPI PFNGLEVALCOORD2DPROC glad_glEvalCoord2d;
+#define glEvalCoord2d glad_glEvalCoord2d
+typedef void (APIENTRYP PFNGLEVALCOORD2DVPROC)(const GLdouble *u);
+GLAPI PFNGLEVALCOORD2DVPROC glad_glEvalCoord2dv;
+#define glEvalCoord2dv glad_glEvalCoord2dv
+typedef void (APIENTRYP PFNGLEVALCOORD2FPROC)(GLfloat u, GLfloat v);
+GLAPI PFNGLEVALCOORD2FPROC glad_glEvalCoord2f;
+#define glEvalCoord2f glad_glEvalCoord2f
+typedef void (APIENTRYP PFNGLEVALCOORD2FVPROC)(const GLfloat *u);
+GLAPI PFNGLEVALCOORD2FVPROC glad_glEvalCoord2fv;
+#define glEvalCoord2fv glad_glEvalCoord2fv
+typedef void (APIENTRYP PFNGLEVALMESH1PROC)(GLenum mode, GLint i1, GLint i2);
+GLAPI PFNGLEVALMESH1PROC glad_glEvalMesh1;
+#define glEvalMesh1 glad_glEvalMesh1
+typedef void (APIENTRYP PFNGLEVALPOINT1PROC)(GLint i);
+GLAPI PFNGLEVALPOINT1PROC glad_glEvalPoint1;
+#define glEvalPoint1 glad_glEvalPoint1
+typedef void (APIENTRYP PFNGLEVALMESH2PROC)(GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2);
+GLAPI PFNGLEVALMESH2PROC glad_glEvalMesh2;
+#define glEvalMesh2 glad_glEvalMesh2
+typedef void (APIENTRYP PFNGLEVALPOINT2PROC)(GLint i, GLint j);
+GLAPI PFNGLEVALPOINT2PROC glad_glEvalPoint2;
+#define glEvalPoint2 glad_glEvalPoint2
+typedef void (APIENTRYP PFNGLALPHAFUNCPROC)(GLenum func, GLfloat ref);
+GLAPI PFNGLALPHAFUNCPROC glad_glAlphaFunc;
+#define glAlphaFunc glad_glAlphaFunc
+typedef void (APIENTRYP PFNGLPIXELZOOMPROC)(GLfloat xfactor, GLfloat yfactor);
+GLAPI PFNGLPIXELZOOMPROC glad_glPixelZoom;
+#define glPixelZoom glad_glPixelZoom
+typedef void (APIENTRYP PFNGLPIXELTRANSFERFPROC)(GLenum pname, GLfloat param);
+GLAPI PFNGLPIXELTRANSFERFPROC glad_glPixelTransferf;
+#define glPixelTransferf glad_glPixelTransferf
+typedef void (APIENTRYP PFNGLPIXELTRANSFERIPROC)(GLenum pname, GLint param);
+GLAPI PFNGLPIXELTRANSFERIPROC glad_glPixelTransferi;
+#define glPixelTransferi glad_glPixelTransferi
+typedef void (APIENTRYP PFNGLPIXELMAPFVPROC)(GLenum map, GLsizei mapsize, const GLfloat *values);
+GLAPI PFNGLPIXELMAPFVPROC glad_glPixelMapfv;
+#define glPixelMapfv glad_glPixelMapfv
+typedef void (APIENTRYP PFNGLPIXELMAPUIVPROC)(GLenum map, GLsizei mapsize, const GLuint *values);
+GLAPI PFNGLPIXELMAPUIVPROC glad_glPixelMapuiv;
+#define glPixelMapuiv glad_glPixelMapuiv
+typedef void (APIENTRYP PFNGLPIXELMAPUSVPROC)(GLenum map, GLsizei mapsize, const GLushort *values);
+GLAPI PFNGLPIXELMAPUSVPROC glad_glPixelMapusv;
+#define glPixelMapusv glad_glPixelMapusv
+typedef void (APIENTRYP PFNGLCOPYPIXELSPROC)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum type);
+GLAPI PFNGLCOPYPIXELSPROC glad_glCopyPixels;
+#define glCopyPixels glad_glCopyPixels
+typedef void (APIENTRYP PFNGLDRAWPIXELSPROC)(GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels);
+GLAPI PFNGLDRAWPIXELSPROC glad_glDrawPixels;
+#define glDrawPixels glad_glDrawPixels
+typedef void (APIENTRYP PFNGLGETCLIPPLANEPROC)(GLenum plane, GLdouble *equation);
+GLAPI PFNGLGETCLIPPLANEPROC glad_glGetClipPlane;
+#define glGetClipPlane glad_glGetClipPlane
+typedef void (APIENTRYP PFNGLGETLIGHTFVPROC)(GLenum light, GLenum pname, GLfloat *params);
+GLAPI PFNGLGETLIGHTFVPROC glad_glGetLightfv;
+#define glGetLightfv glad_glGetLightfv
+typedef void (APIENTRYP PFNGLGETLIGHTIVPROC)(GLenum light, GLenum pname, GLint *params);
+GLAPI PFNGLGETLIGHTIVPROC glad_glGetLightiv;
+#define glGetLightiv glad_glGetLightiv
+typedef void (APIENTRYP PFNGLGETMAPDVPROC)(GLenum target, GLenum query, GLdouble *v);
+GLAPI PFNGLGETMAPDVPROC glad_glGetMapdv;
+#define glGetMapdv glad_glGetMapdv
+typedef void (APIENTRYP PFNGLGETMAPFVPROC)(GLenum target, GLenum query, GLfloat *v);
+GLAPI PFNGLGETMAPFVPROC glad_glGetMapfv;
+#define glGetMapfv glad_glGetMapfv
+typedef void (APIENTRYP PFNGLGETMAPIVPROC)(GLenum target, GLenum query, GLint *v);
+GLAPI PFNGLGETMAPIVPROC glad_glGetMapiv;
+#define glGetMapiv glad_glGetMapiv
+typedef void (APIENTRYP PFNGLGETMATERIALFVPROC)(GLenum face, GLenum pname, GLfloat *params);
+GLAPI PFNGLGETMATERIALFVPROC glad_glGetMaterialfv;
+#define glGetMaterialfv glad_glGetMaterialfv
+typedef void (APIENTRYP PFNGLGETMATERIALIVPROC)(GLenum face, GLenum pname, GLint *params);
+GLAPI PFNGLGETMATERIALIVPROC glad_glGetMaterialiv;
+#define glGetMaterialiv glad_glGetMaterialiv
+typedef void (APIENTRYP PFNGLGETPIXELMAPFVPROC)(GLenum map, GLfloat *values);
+GLAPI PFNGLGETPIXELMAPFVPROC glad_glGetPixelMapfv;
+#define glGetPixelMapfv glad_glGetPixelMapfv
+typedef void (APIENTRYP PFNGLGETPIXELMAPUIVPROC)(GLenum map, GLuint *values);
+GLAPI PFNGLGETPIXELMAPUIVPROC glad_glGetPixelMapuiv;
+#define glGetPixelMapuiv glad_glGetPixelMapuiv
+typedef void (APIENTRYP PFNGLGETPIXELMAPUSVPROC)(GLenum map, GLushort *values);
+GLAPI PFNGLGETPIXELMAPUSVPROC glad_glGetPixelMapusv;
+#define glGetPixelMapusv glad_glGetPixelMapusv
+typedef void (APIENTRYP PFNGLGETPOLYGONSTIPPLEPROC)(GLubyte *mask);
+GLAPI PFNGLGETPOLYGONSTIPPLEPROC glad_glGetPolygonStipple;
+#define glGetPolygonStipple glad_glGetPolygonStipple
+typedef void (APIENTRYP PFNGLGETTEXENVFVPROC)(GLenum target, GLenum pname, GLfloat *params);
+GLAPI PFNGLGETTEXENVFVPROC glad_glGetTexEnvfv;
+#define glGetTexEnvfv glad_glGetTexEnvfv
+typedef void (APIENTRYP PFNGLGETTEXENVIVPROC)(GLenum target, GLenum pname, GLint *params);
+GLAPI PFNGLGETTEXENVIVPROC glad_glGetTexEnviv;
+#define glGetTexEnviv glad_glGetTexEnviv
+typedef void (APIENTRYP PFNGLGETTEXGENDVPROC)(GLenum coord, GLenum pname, GLdouble *params);
+GLAPI PFNGLGETTEXGENDVPROC glad_glGetTexGendv;
+#define glGetTexGendv glad_glGetTexGendv
+typedef void (APIENTRYP PFNGLGETTEXGENFVPROC)(GLenum coord, GLenum pname, GLfloat *params);
+GLAPI PFNGLGETTEXGENFVPROC glad_glGetTexGenfv;
+#define glGetTexGenfv glad_glGetTexGenfv
+typedef void (APIENTRYP PFNGLGETTEXGENIVPROC)(GLenum coord, GLenum pname, GLint *params);
+GLAPI PFNGLGETTEXGENIVPROC glad_glGetTexGeniv;
+#define glGetTexGeniv glad_glGetTexGeniv
+typedef GLboolean (APIENTRYP PFNGLISLISTPROC)(GLuint list);
+GLAPI PFNGLISLISTPROC glad_glIsList;
+#define glIsList glad_glIsList
+typedef void (APIENTRYP PFNGLFRUSTUMPROC)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar);
+GLAPI PFNGLFRUSTUMPROC glad_glFrustum;
+#define glFrustum glad_glFrustum
+typedef void (APIENTRYP PFNGLLOADIDENTITYPROC)(void);
+GLAPI PFNGLLOADIDENTITYPROC glad_glLoadIdentity;
+#define glLoadIdentity glad_glLoadIdentity
+typedef void (APIENTRYP PFNGLLOADMATRIXFPROC)(const GLfloat *m);
+GLAPI PFNGLLOADMATRIXFPROC glad_glLoadMatrixf;
+#define glLoadMatrixf glad_glLoadMatrixf
+typedef void (APIENTRYP PFNGLLOADMATRIXDPROC)(const GLdouble *m);
+GLAPI PFNGLLOADMATRIXDPROC glad_glLoadMatrixd;
+#define glLoadMatrixd glad_glLoadMatrixd
+typedef void (APIENTRYP PFNGLMATRIXMODEPROC)(GLenum mode);
+GLAPI PFNGLMATRIXMODEPROC glad_glMatrixMode;
+#define glMatrixMode glad_glMatrixMode
+typedef void (APIENTRYP PFNGLMULTMATRIXFPROC)(const GLfloat *m);
+GLAPI PFNGLMULTMATRIXFPROC glad_glMultMatrixf;
+#define glMultMatrixf glad_glMultMatrixf
+typedef void (APIENTRYP PFNGLMULTMATRIXDPROC)(const GLdouble *m);
+GLAPI PFNGLMULTMATRIXDPROC glad_glMultMatrixd;
+#define glMultMatrixd glad_glMultMatrixd
+typedef void (APIENTRYP PFNGLORTHOPROC)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar);
+GLAPI PFNGLORTHOPROC glad_glOrtho;
+#define glOrtho glad_glOrtho
+typedef void (APIENTRYP PFNGLPOPMATRIXPROC)(void);
+GLAPI PFNGLPOPMATRIXPROC glad_glPopMatrix;
+#define glPopMatrix glad_glPopMatrix
+typedef void (APIENTRYP PFNGLPUSHMATRIXPROC)(void);
+GLAPI PFNGLPUSHMATRIXPROC glad_glPushMatrix;
+#define glPushMatrix glad_glPushMatrix
+typedef void (APIENTRYP PFNGLROTATEDPROC)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
+GLAPI PFNGLROTATEDPROC glad_glRotated;
+#define glRotated glad_glRotated
+typedef void (APIENTRYP PFNGLROTATEFPROC)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
+GLAPI PFNGLROTATEFPROC glad_glRotatef;
+#define glRotatef glad_glRotatef
+typedef void (APIENTRYP PFNGLSCALEDPROC)(GLdouble x, GLdouble y, GLdouble z);
+GLAPI PFNGLSCALEDPROC glad_glScaled;
+#define glScaled glad_glScaled
+typedef void (APIENTRYP PFNGLSCALEFPROC)(GLfloat x, GLfloat y, GLfloat z);
+GLAPI PFNGLSCALEFPROC glad_glScalef;
+#define glScalef glad_glScalef
+typedef void (APIENTRYP PFNGLTRANSLATEDPROC)(GLdouble x, GLdouble y, GLdouble z);
+GLAPI PFNGLTRANSLATEDPROC glad_glTranslated;
+#define glTranslated glad_glTranslated
+typedef void (APIENTRYP PFNGLTRANSLATEFPROC)(GLfloat x, GLfloat y, GLfloat z);
+GLAPI PFNGLTRANSLATEFPROC glad_glTranslatef;
+#define glTranslatef glad_glTranslatef
+#endif
+#ifndef GL_VERSION_1_1
+#define GL_VERSION_1_1 1
+GLAPI int GLAD_GL_VERSION_1_1;
+typedef void (APIENTRYP PFNGLDRAWARRAYSPROC)(GLenum mode, GLint first, GLsizei count);
+GLAPI PFNGLDRAWARRAYSPROC glad_glDrawArrays;
+#define glDrawArrays glad_glDrawArrays
+typedef void (APIENTRYP PFNGLDRAWELEMENTSPROC)(GLenum mode, GLsizei count, GLenum type, const void *indices);
+GLAPI PFNGLDRAWELEMENTSPROC glad_glDrawElements;
+#define glDrawElements glad_glDrawElements
+typedef void (APIENTRYP PFNGLGETPOINTERVPROC)(GLenum pname, void **params);
+GLAPI PFNGLGETPOINTERVPROC glad_glGetPointerv;
+#define glGetPointerv glad_glGetPointerv
+typedef void (APIENTRYP PFNGLPOLYGONOFFSETPROC)(GLfloat factor, GLfloat units);
+GLAPI PFNGLPOLYGONOFFSETPROC glad_glPolygonOffset;
+#define glPolygonOffset glad_glPolygonOffset
+typedef void (APIENTRYP PFNGLCOPYTEXIMAGE1DPROC)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
+GLAPI PFNGLCOPYTEXIMAGE1DPROC glad_glCopyTexImage1D;
+#define glCopyTexImage1D glad_glCopyTexImage1D
+typedef void (APIENTRYP PFNGLCOPYTEXIMAGE2DPROC)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
+GLAPI PFNGLCOPYTEXIMAGE2DPROC glad_glCopyTexImage2D;
+#define glCopyTexImage2D glad_glCopyTexImage2D
+typedef void (APIENTRYP PFNGLCOPYTEXSUBIMAGE1DPROC)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
+GLAPI PFNGLCOPYTEXSUBIMAGE1DPROC glad_glCopyTexSubImage1D;
+#define glCopyTexSubImage1D glad_glCopyTexSubImage1D
+typedef void (APIENTRYP PFNGLCOPYTEXSUBIMAGE2DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
+GLAPI PFNGLCOPYTEXSUBIMAGE2DPROC glad_glCopyTexSubImage2D;
+#define glCopyTexSubImage2D glad_glCopyTexSubImage2D
+typedef void (APIENTRYP PFNGLTEXSUBIMAGE1DPROC)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void *pixels);
+GLAPI PFNGLTEXSUBIMAGE1DPROC glad_glTexSubImage1D;
+#define glTexSubImage1D glad_glTexSubImage1D
+typedef void (APIENTRYP PFNGLTEXSUBIMAGE2DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels);
+GLAPI PFNGLTEXSUBIMAGE2DPROC glad_glTexSubImage2D;
+#define glTexSubImage2D glad_glTexSubImage2D
+typedef void (APIENTRYP PFNGLBINDTEXTUREPROC)(GLenum target, GLuint texture);
+GLAPI PFNGLBINDTEXTUREPROC glad_glBindTexture;
+#define glBindTexture glad_glBindTexture
+typedef void (APIENTRYP PFNGLDELETETEXTURESPROC)(GLsizei n, const GLuint *textures);
+GLAPI PFNGLDELETETEXTURESPROC glad_glDeleteTextures;
+#define glDeleteTextures glad_glDeleteTextures
+typedef void (APIENTRYP PFNGLGENTEXTURESPROC)(GLsizei n, GLuint *textures);
+GLAPI PFNGLGENTEXTURESPROC glad_glGenTextures;
+#define glGenTextures glad_glGenTextures
+typedef GLboolean (APIENTRYP PFNGLISTEXTUREPROC)(GLuint texture);
+GLAPI PFNGLISTEXTUREPROC glad_glIsTexture;
+#define glIsTexture glad_glIsTexture
+typedef void (APIENTRYP PFNGLARRAYELEMENTPROC)(GLint i);
+GLAPI PFNGLARRAYELEMENTPROC glad_glArrayElement;
+#define glArrayElement glad_glArrayElement
+typedef void (APIENTRYP PFNGLCOLORPOINTERPROC)(GLint size, GLenum type, GLsizei stride, const void *pointer);
+GLAPI PFNGLCOLORPOINTERPROC glad_glColorPointer;
+#define glColorPointer glad_glColorPointer
+typedef void (APIENTRYP PFNGLDISABLECLIENTSTATEPROC)(GLenum array);
+GLAPI PFNGLDISABLECLIENTSTATEPROC glad_glDisableClientState;
+#define glDisableClientState glad_glDisableClientState
+typedef void (APIENTRYP PFNGLEDGEFLAGPOINTERPROC)(GLsizei stride, const void *pointer);
+GLAPI PFNGLEDGEFLAGPOINTERPROC glad_glEdgeFlagPointer;
+#define glEdgeFlagPointer glad_glEdgeFlagPointer
+typedef void (APIENTRYP PFNGLENABLECLIENTSTATEPROC)(GLenum array);
+GLAPI PFNGLENABLECLIENTSTATEPROC glad_glEnableClientState;
+#define glEnableClientState glad_glEnableClientState
+typedef void (APIENTRYP PFNGLINDEXPOINTERPROC)(GLenum type, GLsizei stride, const void *pointer);
+GLAPI PFNGLINDEXPOINTERPROC glad_glIndexPointer;
+#define glIndexPointer glad_glIndexPointer
+typedef void (APIENTRYP PFNGLINTERLEAVEDARRAYSPROC)(GLenum format, GLsizei stride, const void *pointer);
+GLAPI PFNGLINTERLEAVEDARRAYSPROC glad_glInterleavedArrays;
+#define glInterleavedArrays glad_glInterleavedArrays
+typedef void (APIENTRYP PFNGLNORMALPOINTERPROC)(GLenum type, GLsizei stride, const void *pointer);
+GLAPI PFNGLNORMALPOINTERPROC glad_glNormalPointer;
+#define glNormalPointer glad_glNormalPointer
+typedef void (APIENTRYP PFNGLTEXCOORDPOINTERPROC)(GLint size, GLenum type, GLsizei stride, const void *pointer);
+GLAPI PFNGLTEXCOORDPOINTERPROC glad_glTexCoordPointer;
+#define glTexCoordPointer glad_glTexCoordPointer
+typedef void (APIENTRYP PFNGLVERTEXPOINTERPROC)(GLint size, GLenum type, GLsizei stride, const void *pointer);
+GLAPI PFNGLVERTEXPOINTERPROC glad_glVertexPointer;
+#define glVertexPointer glad_glVertexPointer
+typedef GLboolean (APIENTRYP PFNGLARETEXTURESRESIDENTPROC)(GLsizei n, const GLuint *textures, GLboolean *residences);
+GLAPI PFNGLARETEXTURESRESIDENTPROC glad_glAreTexturesResident;
+#define glAreTexturesResident glad_glAreTexturesResident
+typedef void (APIENTRYP PFNGLPRIORITIZETEXTURESPROC)(GLsizei n, const GLuint *textures, const GLfloat *priorities);
+GLAPI PFNGLPRIORITIZETEXTURESPROC glad_glPrioritizeTextures;
+#define glPrioritizeTextures glad_glPrioritizeTextures
+typedef void (APIENTRYP PFNGLINDEXUBPROC)(GLubyte c);
+GLAPI PFNGLINDEXUBPROC glad_glIndexub;
+#define glIndexub glad_glIndexub
+typedef void (APIENTRYP PFNGLINDEXUBVPROC)(const GLubyte *c);
+GLAPI PFNGLINDEXUBVPROC glad_glIndexubv;
+#define glIndexubv glad_glIndexubv
+typedef void (APIENTRYP PFNGLPOPCLIENTATTRIBPROC)(void);
+GLAPI PFNGLPOPCLIENTATTRIBPROC glad_glPopClientAttrib;
+#define glPopClientAttrib glad_glPopClientAttrib
+typedef void (APIENTRYP PFNGLPUSHCLIENTATTRIBPROC)(GLbitfield mask);
+GLAPI PFNGLPUSHCLIENTATTRIBPROC glad_glPushClientAttrib;
+#define glPushClientAttrib glad_glPushClientAttrib
+#endif
+#ifndef GL_VERSION_1_2
+#define GL_VERSION_1_2 1
+GLAPI int GLAD_GL_VERSION_1_2;
+typedef void (APIENTRYP PFNGLDRAWRANGEELEMENTSPROC)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices);
+GLAPI PFNGLDRAWRANGEELEMENTSPROC glad_glDrawRangeElements;
+#define glDrawRangeElements glad_glDrawRangeElements
+typedef void (APIENTRYP PFNGLTEXIMAGE3DPROC)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void *pixels);
+GLAPI PFNGLTEXIMAGE3DPROC glad_glTexImage3D;
+#define glTexImage3D glad_glTexImage3D
+typedef void (APIENTRYP PFNGLTEXSUBIMAGE3DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels);
+GLAPI PFNGLTEXSUBIMAGE3DPROC glad_glTexSubImage3D;
+#define glTexSubImage3D glad_glTexSubImage3D
+typedef void (APIENTRYP PFNGLCOPYTEXSUBIMAGE3DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
+GLAPI PFNGLCOPYTEXSUBIMAGE3DPROC glad_glCopyTexSubImage3D;
+#define glCopyTexSubImage3D glad_glCopyTexSubImage3D
+#endif
+#ifndef GL_VERSION_1_3
+#define GL_VERSION_1_3 1
+GLAPI int GLAD_GL_VERSION_1_3;
+typedef void (APIENTRYP PFNGLACTIVETEXTUREPROC)(GLenum texture);
+GLAPI PFNGLACTIVETEXTUREPROC glad_glActiveTexture;
+#define glActiveTexture glad_glActiveTexture
+typedef void (APIENTRYP PFNGLSAMPLECOVERAGEPROC)(GLfloat value, GLboolean invert);
+GLAPI PFNGLSAMPLECOVERAGEPROC glad_glSampleCoverage;
+#define glSampleCoverage glad_glSampleCoverage
+typedef void (APIENTRYP PFNGLCOMPRESSEDTEXIMAGE3DPROC)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *data);
+GLAPI PFNGLCOMPRESSEDTEXIMAGE3DPROC glad_glCompressedTexImage3D;
+#define glCompressedTexImage3D glad_glCompressedTexImage3D
+typedef void (APIENTRYP PFNGLCOMPRESSEDTEXIMAGE2DPROC)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *data);
+GLAPI PFNGLCOMPRESSEDTEXIMAGE2DPROC glad_glCompressedTexImage2D;
+#define glCompressedTexImage2D glad_glCompressedTexImage2D
+typedef void (APIENTRYP PFNGLCOMPRESSEDTEXIMAGE1DPROC)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void *data);
+GLAPI PFNGLCOMPRESSEDTEXIMAGE1DPROC glad_glCompressedTexImage1D;
+#define glCompressedTexImage1D glad_glCompressedTexImage1D
+typedef void (APIENTRYP PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *data);
+GLAPI PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC glad_glCompressedTexSubImage3D;
+#define glCompressedTexSubImage3D glad_glCompressedTexSubImage3D
+typedef void (APIENTRYP PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data);
+GLAPI PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC glad_glCompressedTexSubImage2D;
+#define glCompressedTexSubImage2D glad_glCompressedTexSubImage2D
+typedef void (APIENTRYP PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *data);
+GLAPI PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC glad_glCompressedTexSubImage1D;
+#define glCompressedTexSubImage1D glad_glCompressedTexSubImage1D
+typedef void (APIENTRYP PFNGLGETCOMPRESSEDTEXIMAGEPROC)(GLenum target, GLint level, void *img);
+GLAPI PFNGLGETCOMPRESSEDTEXIMAGEPROC glad_glGetCompressedTexImage;
+#define glGetCompressedTexImage glad_glGetCompressedTexImage
+typedef void (APIENTRYP PFNGLCLIENTACTIVETEXTUREPROC)(GLenum texture);
+GLAPI PFNGLCLIENTACTIVETEXTUREPROC glad_glClientActiveTexture;
+#define glClientActiveTexture glad_glClientActiveTexture
+typedef void (APIENTRYP PFNGLMULTITEXCOORD1DPROC)(GLenum target, GLdouble s);
+GLAPI PFNGLMULTITEXCOORD1DPROC glad_glMultiTexCoord1d;
+#define glMultiTexCoord1d glad_glMultiTexCoord1d
+typedef void (APIENTRYP PFNGLMULTITEXCOORD1DVPROC)(GLenum target, const GLdouble *v);
+GLAPI PFNGLMULTITEXCOORD1DVPROC glad_glMultiTexCoord1dv;
+#define glMultiTexCoord1dv glad_glMultiTexCoord1dv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD1FPROC)(GLenum target, GLfloat s);
+GLAPI PFNGLMULTITEXCOORD1FPROC glad_glMultiTexCoord1f;
+#define glMultiTexCoord1f glad_glMultiTexCoord1f
+typedef void (APIENTRYP PFNGLMULTITEXCOORD1FVPROC)(GLenum target, const GLfloat *v);
+GLAPI PFNGLMULTITEXCOORD1FVPROC glad_glMultiTexCoord1fv;
+#define glMultiTexCoord1fv glad_glMultiTexCoord1fv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD1IPROC)(GLenum target, GLint s);
+GLAPI PFNGLMULTITEXCOORD1IPROC glad_glMultiTexCoord1i;
+#define glMultiTexCoord1i glad_glMultiTexCoord1i
+typedef void (APIENTRYP PFNGLMULTITEXCOORD1IVPROC)(GLenum target, const GLint *v);
+GLAPI PFNGLMULTITEXCOORD1IVPROC glad_glMultiTexCoord1iv;
+#define glMultiTexCoord1iv glad_glMultiTexCoord1iv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD1SPROC)(GLenum target, GLshort s);
+GLAPI PFNGLMULTITEXCOORD1SPROC glad_glMultiTexCoord1s;
+#define glMultiTexCoord1s glad_glMultiTexCoord1s
+typedef void (APIENTRYP PFNGLMULTITEXCOORD1SVPROC)(GLenum target, const GLshort *v);
+GLAPI PFNGLMULTITEXCOORD1SVPROC glad_glMultiTexCoord1sv;
+#define glMultiTexCoord1sv glad_glMultiTexCoord1sv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD2DPROC)(GLenum target, GLdouble s, GLdouble t);
+GLAPI PFNGLMULTITEXCOORD2DPROC glad_glMultiTexCoord2d;
+#define glMultiTexCoord2d glad_glMultiTexCoord2d
+typedef void (APIENTRYP PFNGLMULTITEXCOORD2DVPROC)(GLenum target, const GLdouble *v);
+GLAPI PFNGLMULTITEXCOORD2DVPROC glad_glMultiTexCoord2dv;
+#define glMultiTexCoord2dv glad_glMultiTexCoord2dv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD2FPROC)(GLenum target, GLfloat s, GLfloat t);
+GLAPI PFNGLMULTITEXCOORD2FPROC glad_glMultiTexCoord2f;
+#define glMultiTexCoord2f glad_glMultiTexCoord2f
+typedef void (APIENTRYP PFNGLMULTITEXCOORD2FVPROC)(GLenum target, const GLfloat *v);
+GLAPI PFNGLMULTITEXCOORD2FVPROC glad_glMultiTexCoord2fv;
+#define glMultiTexCoord2fv glad_glMultiTexCoord2fv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD2IPROC)(GLenum target, GLint s, GLint t);
+GLAPI PFNGLMULTITEXCOORD2IPROC glad_glMultiTexCoord2i;
+#define glMultiTexCoord2i glad_glMultiTexCoord2i
+typedef void (APIENTRYP PFNGLMULTITEXCOORD2IVPROC)(GLenum target, const GLint *v);
+GLAPI PFNGLMULTITEXCOORD2IVPROC glad_glMultiTexCoord2iv;
+#define glMultiTexCoord2iv glad_glMultiTexCoord2iv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD2SPROC)(GLenum target, GLshort s, GLshort t);
+GLAPI PFNGLMULTITEXCOORD2SPROC glad_glMultiTexCoord2s;
+#define glMultiTexCoord2s glad_glMultiTexCoord2s
+typedef void (APIENTRYP PFNGLMULTITEXCOORD2SVPROC)(GLenum target, const GLshort *v);
+GLAPI PFNGLMULTITEXCOORD2SVPROC glad_glMultiTexCoord2sv;
+#define glMultiTexCoord2sv glad_glMultiTexCoord2sv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD3DPROC)(GLenum target, GLdouble s, GLdouble t, GLdouble r);
+GLAPI PFNGLMULTITEXCOORD3DPROC glad_glMultiTexCoord3d;
+#define glMultiTexCoord3d glad_glMultiTexCoord3d
+typedef void (APIENTRYP PFNGLMULTITEXCOORD3DVPROC)(GLenum target, const GLdouble *v);
+GLAPI PFNGLMULTITEXCOORD3DVPROC glad_glMultiTexCoord3dv;
+#define glMultiTexCoord3dv glad_glMultiTexCoord3dv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD3FPROC)(GLenum target, GLfloat s, GLfloat t, GLfloat r);
+GLAPI PFNGLMULTITEXCOORD3FPROC glad_glMultiTexCoord3f;
+#define glMultiTexCoord3f glad_glMultiTexCoord3f
+typedef void (APIENTRYP PFNGLMULTITEXCOORD3FVPROC)(GLenum target, const GLfloat *v);
+GLAPI PFNGLMULTITEXCOORD3FVPROC glad_glMultiTexCoord3fv;
+#define glMultiTexCoord3fv glad_glMultiTexCoord3fv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD3IPROC)(GLenum target, GLint s, GLint t, GLint r);
+GLAPI PFNGLMULTITEXCOORD3IPROC glad_glMultiTexCoord3i;
+#define glMultiTexCoord3i glad_glMultiTexCoord3i
+typedef void (APIENTRYP PFNGLMULTITEXCOORD3IVPROC)(GLenum target, const GLint *v);
+GLAPI PFNGLMULTITEXCOORD3IVPROC glad_glMultiTexCoord3iv;
+#define glMultiTexCoord3iv glad_glMultiTexCoord3iv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD3SPROC)(GLenum target, GLshort s, GLshort t, GLshort r);
+GLAPI PFNGLMULTITEXCOORD3SPROC glad_glMultiTexCoord3s;
+#define glMultiTexCoord3s glad_glMultiTexCoord3s
+typedef void (APIENTRYP PFNGLMULTITEXCOORD3SVPROC)(GLenum target, const GLshort *v);
+GLAPI PFNGLMULTITEXCOORD3SVPROC glad_glMultiTexCoord3sv;
+#define glMultiTexCoord3sv glad_glMultiTexCoord3sv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD4DPROC)(GLenum target, GLdouble s, GLdouble t, GLdouble r, GLdouble q);
+GLAPI PFNGLMULTITEXCOORD4DPROC glad_glMultiTexCoord4d;
+#define glMultiTexCoord4d glad_glMultiTexCoord4d
+typedef void (APIENTRYP PFNGLMULTITEXCOORD4DVPROC)(GLenum target, const GLdouble *v);
+GLAPI PFNGLMULTITEXCOORD4DVPROC glad_glMultiTexCoord4dv;
+#define glMultiTexCoord4dv glad_glMultiTexCoord4dv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD4FPROC)(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q);
+GLAPI PFNGLMULTITEXCOORD4FPROC glad_glMultiTexCoord4f;
+#define glMultiTexCoord4f glad_glMultiTexCoord4f
+typedef void (APIENTRYP PFNGLMULTITEXCOORD4FVPROC)(GLenum target, const GLfloat *v);
+GLAPI PFNGLMULTITEXCOORD4FVPROC glad_glMultiTexCoord4fv;
+#define glMultiTexCoord4fv glad_glMultiTexCoord4fv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD4IPROC)(GLenum target, GLint s, GLint t, GLint r, GLint q);
+GLAPI PFNGLMULTITEXCOORD4IPROC glad_glMultiTexCoord4i;
+#define glMultiTexCoord4i glad_glMultiTexCoord4i
+typedef void (APIENTRYP PFNGLMULTITEXCOORD4IVPROC)(GLenum target, const GLint *v);
+GLAPI PFNGLMULTITEXCOORD4IVPROC glad_glMultiTexCoord4iv;
+#define glMultiTexCoord4iv glad_glMultiTexCoord4iv
+typedef void (APIENTRYP PFNGLMULTITEXCOORD4SPROC)(GLenum target, GLshort s, GLshort t, GLshort r, GLshort q);
+GLAPI PFNGLMULTITEXCOORD4SPROC glad_glMultiTexCoord4s;
+#define glMultiTexCoord4s glad_glMultiTexCoord4s
+typedef void (APIENTRYP PFNGLMULTITEXCOORD4SVPROC)(GLenum target, const GLshort *v);
+GLAPI PFNGLMULTITEXCOORD4SVPROC glad_glMultiTexCoord4sv;
+#define glMultiTexCoord4sv glad_glMultiTexCoord4sv
+typedef void (APIENTRYP PFNGLLOADTRANSPOSEMATRIXFPROC)(const GLfloat *m);
+GLAPI PFNGLLOADTRANSPOSEMATRIXFPROC glad_glLoadTransposeMatrixf;
+#define glLoadTransposeMatrixf glad_glLoadTransposeMatrixf
+typedef void (APIENTRYP PFNGLLOADTRANSPOSEMATRIXDPROC)(const GLdouble *m);
+GLAPI PFNGLLOADTRANSPOSEMATRIXDPROC glad_glLoadTransposeMatrixd;
+#define glLoadTransposeMatrixd glad_glLoadTransposeMatrixd
+typedef void (APIENTRYP PFNGLMULTTRANSPOSEMATRIXFPROC)(const GLfloat *m);
+GLAPI PFNGLMULTTRANSPOSEMATRIXFPROC glad_glMultTransposeMatrixf;
+#define glMultTransposeMatrixf glad_glMultTransposeMatrixf
+typedef void (APIENTRYP PFNGLMULTTRANSPOSEMATRIXDPROC)(const GLdouble *m);
+GLAPI PFNGLMULTTRANSPOSEMATRIXDPROC glad_glMultTransposeMatrixd;
+#define glMultTransposeMatrixd glad_glMultTransposeMatrixd
+#endif
+#ifndef GL_VERSION_1_4
+#define GL_VERSION_1_4 1
+GLAPI int GLAD_GL_VERSION_1_4;
+typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEPROC)(GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
+GLAPI PFNGLBLENDFUNCSEPARATEPROC glad_glBlendFuncSeparate;
+#define glBlendFuncSeparate glad_glBlendFuncSeparate
+typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSPROC)(GLenum mode, const GLint *first, const GLsizei *count, GLsizei drawcount);
+GLAPI PFNGLMULTIDRAWARRAYSPROC glad_glMultiDrawArrays;
+#define glMultiDrawArrays glad_glMultiDrawArrays
+typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSPROC)(GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei drawcount);
+GLAPI PFNGLMULTIDRAWELEMENTSPROC glad_glMultiDrawElements;
+#define glMultiDrawElements glad_glMultiDrawElements
+typedef void (APIENTRYP PFNGLPOINTPARAMETERFPROC)(GLenum pname, GLfloat param);
+GLAPI PFNGLPOINTPARAMETERFPROC glad_glPointParameterf;
+#define glPointParameterf glad_glPointParameterf
+typedef void (APIENTRYP PFNGLPOINTPARAMETERFVPROC)(GLenum pname, const GLfloat *params);
+GLAPI PFNGLPOINTPARAMETERFVPROC glad_glPointParameterfv;
+#define glPointParameterfv glad_glPointParameterfv
+typedef void (APIENTRYP PFNGLPOINTPARAMETERIPROC)(GLenum pname, GLint param);
+GLAPI PFNGLPOINTPARAMETERIPROC glad_glPointParameteri;
+#define glPointParameteri glad_glPointParameteri
+typedef void (APIENTRYP PFNGLPOINTPARAMETERIVPROC)(GLenum pname, const GLint *params);
+GLAPI PFNGLPOINTPARAMETERIVPROC glad_glPointParameteriv;
+#define glPointParameteriv glad_glPointParameteriv
+typedef void (APIENTRYP PFNGLFOGCOORDFPROC)(GLfloat coord);
+GLAPI PFNGLFOGCOORDFPROC glad_glFogCoordf;
+#define glFogCoordf glad_glFogCoordf
+typedef void (APIENTRYP PFNGLFOGCOORDFVPROC)(const GLfloat *coord);
+GLAPI PFNGLFOGCOORDFVPROC glad_glFogCoordfv;
+#define glFogCoordfv glad_glFogCoordfv
+typedef void (APIENTRYP PFNGLFOGCOORDDPROC)(GLdouble coord);
+GLAPI PFNGLFOGCOORDDPROC glad_glFogCoordd;
+#define glFogCoordd glad_glFogCoordd
+typedef void (APIENTRYP PFNGLFOGCOORDDVPROC)(const GLdouble *coord);
+GLAPI PFNGLFOGCOORDDVPROC glad_glFogCoorddv;
+#define glFogCoorddv glad_glFogCoorddv
+typedef void (APIENTRYP PFNGLFOGCOORDPOINTERPROC)(GLenum type, GLsizei stride, const void *pointer);
+GLAPI PFNGLFOGCOORDPOINTERPROC glad_glFogCoordPointer;
+#define glFogCoordPointer glad_glFogCoordPointer
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3BPROC)(GLbyte red, GLbyte green, GLbyte blue);
+GLAPI PFNGLSECONDARYCOLOR3BPROC glad_glSecondaryColor3b;
+#define glSecondaryColor3b glad_glSecondaryColor3b
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3BVPROC)(const GLbyte *v);
+GLAPI PFNGLSECONDARYCOLOR3BVPROC glad_glSecondaryColor3bv;
+#define glSecondaryColor3bv glad_glSecondaryColor3bv
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3DPROC)(GLdouble red, GLdouble green, GLdouble blue);
+GLAPI PFNGLSECONDARYCOLOR3DPROC glad_glSecondaryColor3d;
+#define glSecondaryColor3d glad_glSecondaryColor3d
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3DVPROC)(const GLdouble *v);
+GLAPI PFNGLSECONDARYCOLOR3DVPROC glad_glSecondaryColor3dv;
+#define glSecondaryColor3dv glad_glSecondaryColor3dv
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3FPROC)(GLfloat red, GLfloat green, GLfloat blue);
+GLAPI PFNGLSECONDARYCOLOR3FPROC glad_glSecondaryColor3f;
+#define glSecondaryColor3f glad_glSecondaryColor3f
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3FVPROC)(const GLfloat *v);
+GLAPI PFNGLSECONDARYCOLOR3FVPROC glad_glSecondaryColor3fv;
+#define glSecondaryColor3fv glad_glSecondaryColor3fv
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3IPROC)(GLint red, GLint green, GLint blue);
+GLAPI PFNGLSECONDARYCOLOR3IPROC glad_glSecondaryColor3i;
+#define glSecondaryColor3i glad_glSecondaryColor3i
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3IVPROC)(const GLint *v);
+GLAPI PFNGLSECONDARYCOLOR3IVPROC glad_glSecondaryColor3iv;
+#define glSecondaryColor3iv glad_glSecondaryColor3iv
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3SPROC)(GLshort red, GLshort green, GLshort blue);
+GLAPI PFNGLSECONDARYCOLOR3SPROC glad_glSecondaryColor3s;
+#define glSecondaryColor3s glad_glSecondaryColor3s
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3SVPROC)(const GLshort *v);
+GLAPI PFNGLSECONDARYCOLOR3SVPROC glad_glSecondaryColor3sv;
+#define glSecondaryColor3sv glad_glSecondaryColor3sv
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3UBPROC)(GLubyte red, GLubyte green, GLubyte blue);
+GLAPI PFNGLSECONDARYCOLOR3UBPROC glad_glSecondaryColor3ub;
+#define glSecondaryColor3ub glad_glSecondaryColor3ub
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3UBVPROC)(const GLubyte *v);
+GLAPI PFNGLSECONDARYCOLOR3UBVPROC glad_glSecondaryColor3ubv;
+#define glSecondaryColor3ubv glad_glSecondaryColor3ubv
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3UIPROC)(GLuint red, GLuint green, GLuint blue);
+GLAPI PFNGLSECONDARYCOLOR3UIPROC glad_glSecondaryColor3ui;
+#define glSecondaryColor3ui glad_glSecondaryColor3ui
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3UIVPROC)(const GLuint *v);
+GLAPI PFNGLSECONDARYCOLOR3UIVPROC glad_glSecondaryColor3uiv;
+#define glSecondaryColor3uiv glad_glSecondaryColor3uiv
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3USPROC)(GLushort red, GLushort green, GLushort blue);
+GLAPI PFNGLSECONDARYCOLOR3USPROC glad_glSecondaryColor3us;
+#define glSecondaryColor3us glad_glSecondaryColor3us
+typedef void (APIENTRYP PFNGLSECONDARYCOLOR3USVPROC)(const GLushort *v);
+GLAPI PFNGLSECONDARYCOLOR3USVPROC glad_glSecondaryColor3usv;
+#define glSecondaryColor3usv glad_glSecondaryColor3usv
+typedef void (APIENTRYP PFNGLSECONDARYCOLORPOINTERPROC)(GLint size, GLenum type, GLsizei stride, const void *pointer);
+GLAPI PFNGLSECONDARYCOLORPOINTERPROC glad_glSecondaryColorPointer;
+#define glSecondaryColorPointer glad_glSecondaryColorPointer
+typedef void (APIENTRYP PFNGLWINDOWPOS2DPROC)(GLdouble x, GLdouble y);
+GLAPI PFNGLWINDOWPOS2DPROC glad_glWindowPos2d;
+#define glWindowPos2d glad_glWindowPos2d
+typedef void (APIENTRYP PFNGLWINDOWPOS2DVPROC)(const GLdouble *v);
+GLAPI PFNGLWINDOWPOS2DVPROC glad_glWindowPos2dv;
+#define glWindowPos2dv glad_glWindowPos2dv
+typedef void (APIENTRYP PFNGLWINDOWPOS2FPROC)(GLfloat x, GLfloat y);
+GLAPI PFNGLWINDOWPOS2FPROC glad_glWindowPos2f;
+#define glWindowPos2f glad_glWindowPos2f
+typedef void (APIENTRYP PFNGLWINDOWPOS2FVPROC)(const GLfloat *v);
+GLAPI PFNGLWINDOWPOS2FVPROC glad_glWindowPos2fv;
+#define glWindowPos2fv glad_glWindowPos2fv
+typedef void (APIENTRYP PFNGLWINDOWPOS2IPROC)(GLint x, GLint y);
+GLAPI PFNGLWINDOWPOS2IPROC glad_glWindowPos2i;
+#define glWindowPos2i glad_glWindowPos2i
+typedef void (APIENTRYP PFNGLWINDOWPOS2IVPROC)(const GLint *v);
+GLAPI PFNGLWINDOWPOS2IVPROC glad_glWindowPos2iv;
+#define glWindowPos2iv glad_glWindowPos2iv
+typedef void (APIENTRYP PFNGLWINDOWPOS2SPROC)(GLshort x, GLshort y);
+GLAPI PFNGLWINDOWPOS2SPROC glad_glWindowPos2s;
+#define glWindowPos2s glad_glWindowPos2s
+typedef void (APIENTRYP PFNGLWINDOWPOS2SVPROC)(const GLshort *v);
+GLAPI PFNGLWINDOWPOS2SVPROC glad_glWindowPos2sv;
+#define glWindowPos2sv glad_glWindowPos2sv
+typedef void (APIENTRYP PFNGLWINDOWPOS3DPROC)(GLdouble x, GLdouble y, GLdouble z);
+GLAPI PFNGLWINDOWPOS3DPROC glad_glWindowPos3d;
+#define glWindowPos3d glad_glWindowPos3d
+typedef void (APIENTRYP PFNGLWINDOWPOS3DVPROC)(const GLdouble *v);
+GLAPI PFNGLWINDOWPOS3DVPROC glad_glWindowPos3dv;
+#define glWindowPos3dv glad_glWindowPos3dv
+typedef void (APIENTRYP PFNGLWINDOWPOS3FPROC)(GLfloat x, GLfloat y, GLfloat z);
+GLAPI PFNGLWINDOWPOS3FPROC glad_glWindowPos3f;
+#define glWindowPos3f glad_glWindowPos3f
+typedef void (APIENTRYP PFNGLWINDOWPOS3FVPROC)(const GLfloat *v);
+GLAPI PFNGLWINDOWPOS3FVPROC glad_glWindowPos3fv;
+#define glWindowPos3fv glad_glWindowPos3fv
+typedef void (APIENTRYP PFNGLWINDOWPOS3IPROC)(GLint x, GLint y, GLint z);
+GLAPI PFNGLWINDOWPOS3IPROC glad_glWindowPos3i;
+#define glWindowPos3i glad_glWindowPos3i
+typedef void (APIENTRYP PFNGLWINDOWPOS3IVPROC)(const GLint *v);
+GLAPI PFNGLWINDOWPOS3IVPROC glad_glWindowPos3iv;
+#define glWindowPos3iv glad_glWindowPos3iv
+typedef void (APIENTRYP PFNGLWINDOWPOS3SPROC)(GLshort x, GLshort y, GLshort z);
+GLAPI PFNGLWINDOWPOS3SPROC glad_glWindowPos3s;
+#define glWindowPos3s glad_glWindowPos3s
+typedef void (APIENTRYP PFNGLWINDOWPOS3SVPROC)(const GLshort *v);
+GLAPI PFNGLWINDOWPOS3SVPROC glad_glWindowPos3sv;
+#define glWindowPos3sv glad_glWindowPos3sv
+typedef void (APIENTRYP PFNGLBLENDCOLORPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
+GLAPI PFNGLBLENDCOLORPROC glad_glBlendColor;
+#define glBlendColor glad_glBlendColor
+typedef void (APIENTRYP PFNGLBLENDEQUATIONPROC)(GLenum mode);
+GLAPI PFNGLBLENDEQUATIONPROC glad_glBlendEquation;
+#define glBlendEquation glad_glBlendEquation
+#endif
+#ifndef GL_VERSION_1_5
+#define GL_VERSION_1_5 1
+GLAPI int GLAD_GL_VERSION_1_5;
+typedef void (APIENTRYP PFNGLGENQUERIESPROC)(GLsizei n, GLuint *ids);
+GLAPI PFNGLGENQUERIESPROC glad_glGenQueries;
+#define glGenQueries glad_glGenQueries
+typedef void (APIENTRYP PFNGLDELETEQUERIESPROC)(GLsizei n, const GLuint *ids);
+GLAPI PFNGLDELETEQUERIESPROC glad_glDeleteQueries;
+#define glDeleteQueries glad_glDeleteQueries
+typedef GLboolean (APIENTRYP PFNGLISQUERYPROC)(GLuint id);
+GLAPI PFNGLISQUERYPROC glad_glIsQuery;
+#define glIsQuery glad_glIsQuery
+typedef void (APIENTRYP PFNGLBEGINQUERYPROC)(GLenum target, GLuint id);
+GLAPI PFNGLBEGINQUERYPROC glad_glBeginQuery;
+#define glBeginQuery glad_glBeginQuery
+typedef void (APIENTRYP PFNGLENDQUERYPROC)(GLenum target);
+GLAPI PFNGLENDQUERYPROC glad_glEndQuery;
+#define glEndQuery glad_glEndQuery
+typedef void (APIENTRYP PFNGLGETQUERYIVPROC)(GLenum target, GLenum pname, GLint *params);
+GLAPI PFNGLGETQUERYIVPROC glad_glGetQueryiv;
+#define glGetQueryiv glad_glGetQueryiv
+typedef void (APIENTRYP PFNGLGETQUERYOBJECTIVPROC)(GLuint id, GLenum pname, GLint *params);
+GLAPI PFNGLGETQUERYOBJECTIVPROC glad_glGetQueryObjectiv;
+#define glGetQueryObjectiv glad_glGetQueryObjectiv
+typedef void (APIENTRYP PFNGLGETQUERYOBJECTUIVPROC)(GLuint id, GLenum pname, GLuint *params);
+GLAPI PFNGLGETQUERYOBJECTUIVPROC glad_glGetQueryObjectuiv;
+#define glGetQueryObjectuiv glad_glGetQueryObjectuiv
+typedef void (APIENTRYP PFNGLBINDBUFFERPROC)(GLenum target, GLuint buffer);
+GLAPI PFNGLBINDBUFFERPROC glad_glBindBuffer;
+#define glBindBuffer glad_glBindBuffer
+typedef void (APIENTRYP PFNGLDELETEBUFFERSPROC)(GLsizei n, const GLuint *buffers);
+GLAPI PFNGLDELETEBUFFERSPROC glad_glDeleteBuffers;
+#define glDeleteBuffers glad_glDeleteBuffers
+typedef void (APIENTRYP PFNGLGENBUFFERSPROC)(GLsizei n, GLuint *buffers);
+GLAPI PFNGLGENBUFFERSPROC glad_glGenBuffers;
+#define glGenBuffers glad_glGenBuffers
+typedef GLboolean (APIENTRYP PFNGLISBUFFERPROC)(GLuint buffer);
+GLAPI PFNGLISBUFFERPROC glad_glIsBuffer;
+#define glIsBuffer glad_glIsBuffer
+typedef void (APIENTRYP PFNGLBUFFERDATAPROC)(GLenum target, GLsizeiptr size, const void *data, GLenum usage);
+GLAPI PFNGLBUFFERDATAPROC glad_glBufferData;
+#define glBufferData glad_glBufferData
+typedef void (APIENTRYP PFNGLBUFFERSUBDATAPROC)(GLenum target, GLintptr offset, GLsizeiptr size, const void *data);
+GLAPI PFNGLBUFFERSUBDATAPROC glad_glBufferSubData;
+#define glBufferSubData glad_glBufferSubData
+typedef void (APIENTRYP PFNGLGETBUFFERSUBDATAPROC)(GLenum target, GLintptr offset, GLsizeiptr size, void *data);
+GLAPI PFNGLGETBUFFERSUBDATAPROC glad_glGetBufferSubData;
+#define glGetBufferSubData glad_glGetBufferSubData
+typedef void * (APIENTRYP PFNGLMAPBUFFERPROC)(GLenum target, GLenum access);
+GLAPI PFNGLMAPBUFFERPROC glad_glMapBuffer;
+#define glMapBuffer glad_glMapBuffer
+typedef GLboolean (APIENTRYP PFNGLUNMAPBUFFERPROC)(GLenum target);
+GLAPI PFNGLUNMAPBUFFERPROC glad_glUnmapBuffer;
+#define glUnmapBuffer glad_glUnmapBuffer
+typedef void (APIENTRYP PFNGLGETBUFFERPARAMETERIVPROC)(GLenum target, GLenum pname, GLint *params);
+GLAPI PFNGLGETBUFFERPARAMETERIVPROC glad_glGetBufferParameteriv;
+#define glGetBufferParameteriv glad_glGetBufferParameteriv
+typedef void (APIENTRYP PFNGLGETBUFFERPOINTERVPROC)(GLenum target, GLenum pname, void **params);
+GLAPI PFNGLGETBUFFERPOINTERVPROC glad_glGetBufferPointerv;
+#define glGetBufferPointerv glad_glGetBufferPointerv
+#endif
+#ifndef GL_VERSION_2_0
+#define GL_VERSION_2_0 1
+GLAPI int GLAD_GL_VERSION_2_0;
+typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEPROC)(GLenum modeRGB, GLenum modeAlpha);
+GLAPI PFNGLBLENDEQUATIONSEPARATEPROC glad_glBlendEquationSeparate;
+#define glBlendEquationSeparate glad_glBlendEquationSeparate
+typedef void (APIENTRYP PFNGLDRAWBUFFERSPROC)(GLsizei n, const GLenum *bufs);
+GLAPI PFNGLDRAWBUFFERSPROC glad_glDrawBuffers;
+#define glDrawBuffers glad_glDrawBuffers
+typedef void (APIENTRYP PFNGLSTENCILOPSEPARATEPROC)(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass);
+GLAPI PFNGLSTENCILOPSEPARATEPROC glad_glStencilOpSeparate;
+#define glStencilOpSeparate glad_glStencilOpSeparate
+typedef void (APIENTRYP PFNGLSTENCILFUNCSEPARATEPROC)(GLenum face, GLenum func, GLint ref, GLuint mask);
+GLAPI PFNGLSTENCILFUNCSEPARATEPROC glad_glStencilFuncSeparate;
+#define glStencilFuncSeparate glad_glStencilFuncSeparate
+typedef void (APIENTRYP PFNGLSTENCILMASKSEPARATEPROC)(GLenum face, GLuint mask);
+GLAPI PFNGLSTENCILMASKSEPARATEPROC glad_glStencilMaskSeparate;
+#define glStencilMaskSeparate glad_glStencilMaskSeparate
+typedef void (APIENTRYP PFNGLATTACHSHADERPROC)(GLuint program, GLuint shader);
+GLAPI PFNGLATTACHSHADERPROC glad_glAttachShader;
+#define glAttachShader glad_glAttachShader
+typedef void (APIENTRYP PFNGLBINDATTRIBLOCATIONPROC)(GLuint program, GLuint index, const GLchar *name);
+GLAPI PFNGLBINDATTRIBLOCATIONPROC glad_glBindAttribLocation;
+#define glBindAttribLocation glad_glBindAttribLocation
+typedef void (APIENTRYP PFNGLCOMPILESHADERPROC)(GLuint shader);
+GLAPI PFNGLCOMPILESHADERPROC glad_glCompileShader;
+#define glCompileShader glad_glCompileShader
+typedef GLuint (APIENTRYP PFNGLCREATEPROGRAMPROC)(void);
+GLAPI PFNGLCREATEPROGRAMPROC glad_glCreateProgram;
+#define glCreateProgram glad_glCreateProgram
+typedef GLuint (APIENTRYP PFNGLCREATESHADERPROC)(GLenum type);
+GLAPI PFNGLCREATESHADERPROC glad_glCreateShader;
+#define glCreateShader glad_glCreateShader
+typedef void (APIENTRYP PFNGLDELETEPROGRAMPROC)(GLuint program);
+GLAPI PFNGLDELETEPROGRAMPROC glad_glDeleteProgram;
+#define glDeleteProgram glad_glDeleteProgram
+typedef void (APIENTRYP PFNGLDELETESHADERPROC)(GLuint shader);
+GLAPI PFNGLDELETESHADERPROC glad_glDeleteShader;
+#define glDeleteShader glad_glDeleteShader
+typedef void (APIENTRYP PFNGLDETACHSHADERPROC)(GLuint program, GLuint shader);
+GLAPI PFNGLDETACHSHADERPROC glad_glDetachShader;
+#define glDetachShader glad_glDetachShader
+typedef void (APIENTRYP PFNGLDISABLEVERTEXATTRIBARRAYPROC)(GLuint index);
+GLAPI PFNGLDISABLEVERTEXATTRIBARRAYPROC glad_glDisableVertexAttribArray;
+#define glDisableVertexAttribArray glad_glDisableVertexAttribArray
+typedef void (APIENTRYP PFNGLENABLEVERTEXATTRIBARRAYPROC)(GLuint index);
+GLAPI PFNGLENABLEVERTEXATTRIBARRAYPROC glad_glEnableVertexAttribArray;
+#define glEnableVertexAttribArray glad_glEnableVertexAttribArray
+typedef void (APIENTRYP PFNGLGETACTIVEATTRIBPROC)(GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name);
+GLAPI PFNGLGETACTIVEATTRIBPROC glad_glGetActiveAttrib;
+#define glGetActiveAttrib glad_glGetActiveAttrib
+typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMPROC)(GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name);
+GLAPI PFNGLGETACTIVEUNIFORMPROC glad_glGetActiveUniform;
+#define glGetActiveUniform glad_glGetActiveUniform
+typedef void (APIENTRYP PFNGLGETATTACHEDSHADERSPROC)(GLuint program, GLsizei maxCount, GLsizei *count, GLuint *shaders);
+GLAPI PFNGLGETATTACHEDSHADERSPROC glad_glGetAttachedShaders;
+#define glGetAttachedShaders glad_glGetAttachedShaders
+typedef GLint (APIENTRYP PFNGLGETATTRIBLOCATIONPROC)(GLuint program, const GLchar *name);
+GLAPI PFNGLGETATTRIBLOCATIONPROC glad_glGetAttribLocation;
+#define glGetAttribLocation glad_glGetAttribLocation
+typedef void (APIENTRYP PFNGLGETPROGRAMIVPROC)(GLuint program, GLenum pname, GLint *params);
+GLAPI PFNGLGETPROGRAMIVPROC glad_glGetProgramiv;
+#define glGetProgramiv glad_glGetProgramiv
+typedef void (APIENTRYP PFNGLGETPROGRAMINFOLOGPROC)(GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
+GLAPI PFNGLGETPROGRAMINFOLOGPROC glad_glGetProgramInfoLog;
+#define glGetProgramInfoLog glad_glGetProgramInfoLog
+typedef void (APIENTRYP PFNGLGETSHADERIVPROC)(GLuint shader, GLenum pname, GLint *params);
+GLAPI PFNGLGETSHADERIVPROC glad_glGetShaderiv;
+#define glGetShaderiv glad_glGetShaderiv
+typedef void (APIENTRYP PFNGLGETSHADERINFOLOGPROC)(GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
+GLAPI PFNGLGETSHADERINFOLOGPROC glad_glGetShaderInfoLog;
+#define glGetShaderInfoLog glad_glGetShaderInfoLog
+typedef void (APIENTRYP PFNGLGETSHADERSOURCEPROC)(GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *source);
+GLAPI PFNGLGETSHADERSOURCEPROC glad_glGetShaderSource;
+#define glGetShaderSource glad_glGetShaderSource
+typedef GLint (APIENTRYP PFNGLGETUNIFORMLOCATIONPROC)(GLuint program, const GLchar *name);
+GLAPI PFNGLGETUNIFORMLOCATIONPROC glad_glGetUniformLocation;
+#define glGetUniformLocation glad_glGetUniformLocation
+typedef void (APIENTRYP PFNGLGETUNIFORMFVPROC)(GLuint program, GLint location, GLfloat *params);
+GLAPI PFNGLGETUNIFORMFVPROC glad_glGetUniformfv;
+#define glGetUniformfv glad_glGetUniformfv
+typedef void (APIENTRYP PFNGLGETUNIFORMIVPROC)(GLuint program, GLint location, GLint *params);
+GLAPI PFNGLGETUNIFORMIVPROC glad_glGetUniformiv;
+#define glGetUniformiv glad_glGetUniformiv
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBDVPROC)(GLuint index, GLenum pname, GLdouble *params);
+GLAPI PFNGLGETVERTEXATTRIBDVPROC glad_glGetVertexAttribdv;
+#define glGetVertexAttribdv glad_glGetVertexAttribdv
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBFVPROC)(GLuint index, GLenum pname, GLfloat *params);
+GLAPI PFNGLGETVERTEXATTRIBFVPROC glad_glGetVertexAttribfv;
+#define glGetVertexAttribfv glad_glGetVertexAttribfv
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIVPROC)(GLuint index, GLenum pname, GLint *params);
+GLAPI PFNGLGETVERTEXATTRIBIVPROC glad_glGetVertexAttribiv;
+#define glGetVertexAttribiv glad_glGetVertexAttribiv
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBPOINTERVPROC)(GLuint index, GLenum pname, void **pointer);
+GLAPI PFNGLGETVERTEXATTRIBPOINTERVPROC glad_glGetVertexAttribPointerv;
+#define glGetVertexAttribPointerv glad_glGetVertexAttribPointerv
+typedef GLboolean (APIENTRYP PFNGLISPROGRAMPROC)(GLuint program);
+GLAPI PFNGLISPROGRAMPROC glad_glIsProgram;
+#define glIsProgram glad_glIsProgram
+typedef GLboolean (APIENTRYP PFNGLISSHADERPROC)(GLuint shader);
+GLAPI PFNGLISSHADERPROC glad_glIsShader;
+#define glIsShader glad_glIsShader
+typedef void (APIENTRYP PFNGLLINKPROGRAMPROC)(GLuint program);
+GLAPI PFNGLLINKPROGRAMPROC glad_glLinkProgram;
+#define glLinkProgram glad_glLinkProgram
+typedef void (APIENTRYP PFNGLSHADERSOURCEPROC)(GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);
+GLAPI PFNGLSHADERSOURCEPROC glad_glShaderSource;
+#define glShaderSource glad_glShaderSource
+typedef void (APIENTRYP PFNGLUSEPROGRAMPROC)(GLuint program);
+GLAPI PFNGLUSEPROGRAMPROC glad_glUseProgram;
+#define glUseProgram glad_glUseProgram
+typedef void (APIENTRYP PFNGLUNIFORM1FPROC)(GLint location, GLfloat v0);
+GLAPI PFNGLUNIFORM1FPROC glad_glUniform1f;
+#define glUniform1f glad_glUniform1f
+typedef void (APIENTRYP PFNGLUNIFORM2FPROC)(GLint location, GLfloat v0, GLfloat v1);
+GLAPI PFNGLUNIFORM2FPROC glad_glUniform2f;
+#define glUniform2f glad_glUniform2f
+typedef void (APIENTRYP PFNGLUNIFORM3FPROC)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
+GLAPI PFNGLUNIFORM3FPROC glad_glUniform3f;
+#define glUniform3f glad_glUniform3f
+typedef void (APIENTRYP PFNGLUNIFORM4FPROC)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
+GLAPI PFNGLUNIFORM4FPROC glad_glUniform4f;
+#define glUniform4f glad_glUniform4f
+typedef void (APIENTRYP PFNGLUNIFORM1IPROC)(GLint location, GLint v0);
+GLAPI PFNGLUNIFORM1IPROC glad_glUniform1i;
+#define glUniform1i glad_glUniform1i
+typedef void (APIENTRYP PFNGLUNIFORM2IPROC)(GLint location, GLint v0, GLint v1);
+GLAPI PFNGLUNIFORM2IPROC glad_glUniform2i;
+#define glUniform2i glad_glUniform2i
+typedef void (APIENTRYP PFNGLUNIFORM3IPROC)(GLint location, GLint v0, GLint v1, GLint v2);
+GLAPI PFNGLUNIFORM3IPROC glad_glUniform3i;
+#define glUniform3i glad_glUniform3i
+typedef void (APIENTRYP PFNGLUNIFORM4IPROC)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
+GLAPI PFNGLUNIFORM4IPROC glad_glUniform4i;
+#define glUniform4i glad_glUniform4i
+typedef void (APIENTRYP PFNGLUNIFORM1FVPROC)(GLint location, GLsizei count, const GLfloat *value);
+GLAPI PFNGLUNIFORM1FVPROC glad_glUniform1fv;
+#define glUniform1fv glad_glUniform1fv
+typedef void (APIENTRYP PFNGLUNIFORM2FVPROC)(GLint location, GLsizei count, const GLfloat *value);
+GLAPI PFNGLUNIFORM2FVPROC glad_glUniform2fv;
+#define glUniform2fv glad_glUniform2fv
+typedef void (APIENTRYP PFNGLUNIFORM3FVPROC)(GLint location, GLsizei count, const GLfloat *value);
+GLAPI PFNGLUNIFORM3FVPROC glad_glUniform3fv;
+#define glUniform3fv glad_glUniform3fv
+typedef void (APIENTRYP PFNGLUNIFORM4FVPROC)(GLint location, GLsizei count, const GLfloat *value);
+GLAPI PFNGLUNIFORM4FVPROC glad_glUniform4fv;
+#define glUniform4fv glad_glUniform4fv
+typedef void (APIENTRYP PFNGLUNIFORM1IVPROC)(GLint location, GLsizei count, const GLint *value);
+GLAPI PFNGLUNIFORM1IVPROC glad_glUniform1iv;
+#define glUniform1iv glad_glUniform1iv
+typedef void (APIENTRYP PFNGLUNIFORM2IVPROC)(GLint location, GLsizei count, const GLint *value);
+GLAPI PFNGLUNIFORM2IVPROC glad_glUniform2iv;
+#define glUniform2iv glad_glUniform2iv
+typedef void (APIENTRYP PFNGLUNIFORM3IVPROC)(GLint location, GLsizei count, const GLint *value);
+GLAPI PFNGLUNIFORM3IVPROC glad_glUniform3iv;
+#define glUniform3iv glad_glUniform3iv
+typedef void (APIENTRYP PFNGLUNIFORM4IVPROC)(GLint location, GLsizei count, const GLint *value);
+GLAPI PFNGLUNIFORM4IVPROC glad_glUniform4iv;
+#define glUniform4iv glad_glUniform4iv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX2FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLUNIFORMMATRIX2FVPROC glad_glUniformMatrix2fv;
+#define glUniformMatrix2fv glad_glUniformMatrix2fv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX3FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLUNIFORMMATRIX3FVPROC glad_glUniformMatrix3fv;
+#define glUniformMatrix3fv glad_glUniformMatrix3fv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX4FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLUNIFORMMATRIX4FVPROC glad_glUniformMatrix4fv;
+#define glUniformMatrix4fv glad_glUniformMatrix4fv
+typedef void (APIENTRYP PFNGLVALIDATEPROGRAMPROC)(GLuint program);
+GLAPI PFNGLVALIDATEPROGRAMPROC glad_glValidateProgram;
+#define glValidateProgram glad_glValidateProgram
+typedef void (APIENTRYP PFNGLVERTEXATTRIB1DPROC)(GLuint index, GLdouble x);
+GLAPI PFNGLVERTEXATTRIB1DPROC glad_glVertexAttrib1d;
+#define glVertexAttrib1d glad_glVertexAttrib1d
+typedef void (APIENTRYP PFNGLVERTEXATTRIB1DVPROC)(GLuint index, const GLdouble *v);
+GLAPI PFNGLVERTEXATTRIB1DVPROC glad_glVertexAttrib1dv;
+#define glVertexAttrib1dv glad_glVertexAttrib1dv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB1FPROC)(GLuint index, GLfloat x);
+GLAPI PFNGLVERTEXATTRIB1FPROC glad_glVertexAttrib1f;
+#define glVertexAttrib1f glad_glVertexAttrib1f
+typedef void (APIENTRYP PFNGLVERTEXATTRIB1FVPROC)(GLuint index, const GLfloat *v);
+GLAPI PFNGLVERTEXATTRIB1FVPROC glad_glVertexAttrib1fv;
+#define glVertexAttrib1fv glad_glVertexAttrib1fv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB1SPROC)(GLuint index, GLshort x);
+GLAPI PFNGLVERTEXATTRIB1SPROC glad_glVertexAttrib1s;
+#define glVertexAttrib1s glad_glVertexAttrib1s
+typedef void (APIENTRYP PFNGLVERTEXATTRIB1SVPROC)(GLuint index, const GLshort *v);
+GLAPI PFNGLVERTEXATTRIB1SVPROC glad_glVertexAttrib1sv;
+#define glVertexAttrib1sv glad_glVertexAttrib1sv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB2DPROC)(GLuint index, GLdouble x, GLdouble y);
+GLAPI PFNGLVERTEXATTRIB2DPROC glad_glVertexAttrib2d;
+#define glVertexAttrib2d glad_glVertexAttrib2d
+typedef void (APIENTRYP PFNGLVERTEXATTRIB2DVPROC)(GLuint index, const GLdouble *v);
+GLAPI PFNGLVERTEXATTRIB2DVPROC glad_glVertexAttrib2dv;
+#define glVertexAttrib2dv glad_glVertexAttrib2dv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB2FPROC)(GLuint index, GLfloat x, GLfloat y);
+GLAPI PFNGLVERTEXATTRIB2FPROC glad_glVertexAttrib2f;
+#define glVertexAttrib2f glad_glVertexAttrib2f
+typedef void (APIENTRYP PFNGLVERTEXATTRIB2FVPROC)(GLuint index, const GLfloat *v);
+GLAPI PFNGLVERTEXATTRIB2FVPROC glad_glVertexAttrib2fv;
+#define glVertexAttrib2fv glad_glVertexAttrib2fv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB2SPROC)(GLuint index, GLshort x, GLshort y);
+GLAPI PFNGLVERTEXATTRIB2SPROC glad_glVertexAttrib2s;
+#define glVertexAttrib2s glad_glVertexAttrib2s
+typedef void (APIENTRYP PFNGLVERTEXATTRIB2SVPROC)(GLuint index, const GLshort *v);
+GLAPI PFNGLVERTEXATTRIB2SVPROC glad_glVertexAttrib2sv;
+#define glVertexAttrib2sv glad_glVertexAttrib2sv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB3DPROC)(GLuint index, GLdouble x, GLdouble y, GLdouble z);
+GLAPI PFNGLVERTEXATTRIB3DPROC glad_glVertexAttrib3d;
+#define glVertexAttrib3d glad_glVertexAttrib3d
+typedef void (APIENTRYP PFNGLVERTEXATTRIB3DVPROC)(GLuint index, const GLdouble *v);
+GLAPI PFNGLVERTEXATTRIB3DVPROC glad_glVertexAttrib3dv;
+#define glVertexAttrib3dv glad_glVertexAttrib3dv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB3FPROC)(GLuint index, GLfloat x, GLfloat y, GLfloat z);
+GLAPI PFNGLVERTEXATTRIB3FPROC glad_glVertexAttrib3f;
+#define glVertexAttrib3f glad_glVertexAttrib3f
+typedef void (APIENTRYP PFNGLVERTEXATTRIB3FVPROC)(GLuint index, const GLfloat *v);
+GLAPI PFNGLVERTEXATTRIB3FVPROC glad_glVertexAttrib3fv;
+#define glVertexAttrib3fv glad_glVertexAttrib3fv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB3SPROC)(GLuint index, GLshort x, GLshort y, GLshort z);
+GLAPI PFNGLVERTEXATTRIB3SPROC glad_glVertexAttrib3s;
+#define glVertexAttrib3s glad_glVertexAttrib3s
+typedef void (APIENTRYP PFNGLVERTEXATTRIB3SVPROC)(GLuint index, const GLshort *v);
+GLAPI PFNGLVERTEXATTRIB3SVPROC glad_glVertexAttrib3sv;
+#define glVertexAttrib3sv glad_glVertexAttrib3sv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4NBVPROC)(GLuint index, const GLbyte *v);
+GLAPI PFNGLVERTEXATTRIB4NBVPROC glad_glVertexAttrib4Nbv;
+#define glVertexAttrib4Nbv glad_glVertexAttrib4Nbv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4NIVPROC)(GLuint index, const GLint *v);
+GLAPI PFNGLVERTEXATTRIB4NIVPROC glad_glVertexAttrib4Niv;
+#define glVertexAttrib4Niv glad_glVertexAttrib4Niv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4NSVPROC)(GLuint index, const GLshort *v);
+GLAPI PFNGLVERTEXATTRIB4NSVPROC glad_glVertexAttrib4Nsv;
+#define glVertexAttrib4Nsv glad_glVertexAttrib4Nsv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4NUBPROC)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
+GLAPI PFNGLVERTEXATTRIB4NUBPROC glad_glVertexAttrib4Nub;
+#define glVertexAttrib4Nub glad_glVertexAttrib4Nub
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4NUBVPROC)(GLuint index, const GLubyte *v);
+GLAPI PFNGLVERTEXATTRIB4NUBVPROC glad_glVertexAttrib4Nubv;
+#define glVertexAttrib4Nubv glad_glVertexAttrib4Nubv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4NUIVPROC)(GLuint index, const GLuint *v);
+GLAPI PFNGLVERTEXATTRIB4NUIVPROC glad_glVertexAttrib4Nuiv;
+#define glVertexAttrib4Nuiv glad_glVertexAttrib4Nuiv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4NUSVPROC)(GLuint index, const GLushort *v);
+GLAPI PFNGLVERTEXATTRIB4NUSVPROC glad_glVertexAttrib4Nusv;
+#define glVertexAttrib4Nusv glad_glVertexAttrib4Nusv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4BVPROC)(GLuint index, const GLbyte *v);
+GLAPI PFNGLVERTEXATTRIB4BVPROC glad_glVertexAttrib4bv;
+#define glVertexAttrib4bv glad_glVertexAttrib4bv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4DPROC)(GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
+GLAPI PFNGLVERTEXATTRIB4DPROC glad_glVertexAttrib4d;
+#define glVertexAttrib4d glad_glVertexAttrib4d
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4DVPROC)(GLuint index, const GLdouble *v);
+GLAPI PFNGLVERTEXATTRIB4DVPROC glad_glVertexAttrib4dv;
+#define glVertexAttrib4dv glad_glVertexAttrib4dv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4FPROC)(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
+GLAPI PFNGLVERTEXATTRIB4FPROC glad_glVertexAttrib4f;
+#define glVertexAttrib4f glad_glVertexAttrib4f
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4FVPROC)(GLuint index, const GLfloat *v);
+GLAPI PFNGLVERTEXATTRIB4FVPROC glad_glVertexAttrib4fv;
+#define glVertexAttrib4fv glad_glVertexAttrib4fv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4IVPROC)(GLuint index, const GLint *v);
+GLAPI PFNGLVERTEXATTRIB4IVPROC glad_glVertexAttrib4iv;
+#define glVertexAttrib4iv glad_glVertexAttrib4iv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4SPROC)(GLuint index, GLshort x, GLshort y, GLshort z, GLshort w);
+GLAPI PFNGLVERTEXATTRIB4SPROC glad_glVertexAttrib4s;
+#define glVertexAttrib4s glad_glVertexAttrib4s
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4SVPROC)(GLuint index, const GLshort *v);
+GLAPI PFNGLVERTEXATTRIB4SVPROC glad_glVertexAttrib4sv;
+#define glVertexAttrib4sv glad_glVertexAttrib4sv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4UBVPROC)(GLuint index, const GLubyte *v);
+GLAPI PFNGLVERTEXATTRIB4UBVPROC glad_glVertexAttrib4ubv;
+#define glVertexAttrib4ubv glad_glVertexAttrib4ubv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4UIVPROC)(GLuint index, const GLuint *v);
+GLAPI PFNGLVERTEXATTRIB4UIVPROC glad_glVertexAttrib4uiv;
+#define glVertexAttrib4uiv glad_glVertexAttrib4uiv
+typedef void (APIENTRYP PFNGLVERTEXATTRIB4USVPROC)(GLuint index, const GLushort *v);
+GLAPI PFNGLVERTEXATTRIB4USVPROC glad_glVertexAttrib4usv;
+#define glVertexAttrib4usv glad_glVertexAttrib4usv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBPOINTERPROC)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer);
+GLAPI PFNGLVERTEXATTRIBPOINTERPROC glad_glVertexAttribPointer;
+#define glVertexAttribPointer glad_glVertexAttribPointer
+#endif
+#ifndef GL_VERSION_2_1
+#define GL_VERSION_2_1 1
+GLAPI int GLAD_GL_VERSION_2_1;
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX2X3FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLUNIFORMMATRIX2X3FVPROC glad_glUniformMatrix2x3fv;
+#define glUniformMatrix2x3fv glad_glUniformMatrix2x3fv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX3X2FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLUNIFORMMATRIX3X2FVPROC glad_glUniformMatrix3x2fv;
+#define glUniformMatrix3x2fv glad_glUniformMatrix3x2fv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX2X4FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLUNIFORMMATRIX2X4FVPROC glad_glUniformMatrix2x4fv;
+#define glUniformMatrix2x4fv glad_glUniformMatrix2x4fv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX4X2FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLUNIFORMMATRIX4X2FVPROC glad_glUniformMatrix4x2fv;
+#define glUniformMatrix4x2fv glad_glUniformMatrix4x2fv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX3X4FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLUNIFORMMATRIX3X4FVPROC glad_glUniformMatrix3x4fv;
+#define glUniformMatrix3x4fv glad_glUniformMatrix3x4fv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX4X3FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLUNIFORMMATRIX4X3FVPROC glad_glUniformMatrix4x3fv;
+#define glUniformMatrix4x3fv glad_glUniformMatrix4x3fv
+#endif
+#ifndef GL_VERSION_3_0
+#define GL_VERSION_3_0 1
+GLAPI int GLAD_GL_VERSION_3_0;
+typedef void (APIENTRYP PFNGLCOLORMASKIPROC)(GLuint index, GLboolean r, GLboolean g, GLboolean b, GLboolean a);
+GLAPI PFNGLCOLORMASKIPROC glad_glColorMaski;
+#define glColorMaski glad_glColorMaski
+typedef void (APIENTRYP PFNGLGETBOOLEANI_VPROC)(GLenum target, GLuint index, GLboolean *data);
+GLAPI PFNGLGETBOOLEANI_VPROC glad_glGetBooleani_v;
+#define glGetBooleani_v glad_glGetBooleani_v
+typedef void (APIENTRYP PFNGLGETINTEGERI_VPROC)(GLenum target, GLuint index, GLint *data);
+GLAPI PFNGLGETINTEGERI_VPROC glad_glGetIntegeri_v;
+#define glGetIntegeri_v glad_glGetIntegeri_v
+typedef void (APIENTRYP PFNGLENABLEIPROC)(GLenum target, GLuint index);
+GLAPI PFNGLENABLEIPROC glad_glEnablei;
+#define glEnablei glad_glEnablei
+typedef void (APIENTRYP PFNGLDISABLEIPROC)(GLenum target, GLuint index);
+GLAPI PFNGLDISABLEIPROC glad_glDisablei;
+#define glDisablei glad_glDisablei
+typedef GLboolean (APIENTRYP PFNGLISENABLEDIPROC)(GLenum target, GLuint index);
+GLAPI PFNGLISENABLEDIPROC glad_glIsEnabledi;
+#define glIsEnabledi glad_glIsEnabledi
+typedef void (APIENTRYP PFNGLBEGINTRANSFORMFEEDBACKPROC)(GLenum primitiveMode);
+GLAPI PFNGLBEGINTRANSFORMFEEDBACKPROC glad_glBeginTransformFeedback;
+#define glBeginTransformFeedback glad_glBeginTransformFeedback
+typedef void (APIENTRYP PFNGLENDTRANSFORMFEEDBACKPROC)(void);
+GLAPI PFNGLENDTRANSFORMFEEDBACKPROC glad_glEndTransformFeedback;
+#define glEndTransformFeedback glad_glEndTransformFeedback
+typedef void (APIENTRYP PFNGLBINDBUFFERRANGEPROC)(GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size);
+GLAPI PFNGLBINDBUFFERRANGEPROC glad_glBindBufferRange;
+#define glBindBufferRange glad_glBindBufferRange
+typedef void (APIENTRYP PFNGLBINDBUFFERBASEPROC)(GLenum target, GLuint index, GLuint buffer);
+GLAPI PFNGLBINDBUFFERBASEPROC glad_glBindBufferBase;
+#define glBindBufferBase glad_glBindBufferBase
+typedef void (APIENTRYP PFNGLTRANSFORMFEEDBACKVARYINGSPROC)(GLuint program, GLsizei count, const GLchar *const*varyings, GLenum bufferMode);
+GLAPI PFNGLTRANSFORMFEEDBACKVARYINGSPROC glad_glTransformFeedbackVaryings;
+#define glTransformFeedbackVaryings glad_glTransformFeedbackVaryings
+typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKVARYINGPROC)(GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLsizei *size, GLenum *type, GLchar *name);
+GLAPI PFNGLGETTRANSFORMFEEDBACKVARYINGPROC glad_glGetTransformFeedbackVarying;
+#define glGetTransformFeedbackVarying glad_glGetTransformFeedbackVarying
+typedef void (APIENTRYP PFNGLCLAMPCOLORPROC)(GLenum target, GLenum clamp);
+GLAPI PFNGLCLAMPCOLORPROC glad_glClampColor;
+#define glClampColor glad_glClampColor
+typedef void (APIENTRYP PFNGLBEGINCONDITIONALRENDERPROC)(GLuint id, GLenum mode);
+GLAPI PFNGLBEGINCONDITIONALRENDERPROC glad_glBeginConditionalRender;
+#define glBeginConditionalRender glad_glBeginConditionalRender
+typedef void (APIENTRYP PFNGLENDCONDITIONALRENDERPROC)(void);
+GLAPI PFNGLENDCONDITIONALRENDERPROC glad_glEndConditionalRender;
+#define glEndConditionalRender glad_glEndConditionalRender
+typedef void (APIENTRYP PFNGLVERTEXATTRIBIPOINTERPROC)(GLuint index, GLint size, GLenum type, GLsizei stride, const void *pointer);
+GLAPI PFNGLVERTEXATTRIBIPOINTERPROC glad_glVertexAttribIPointer;
+#define glVertexAttribIPointer glad_glVertexAttribIPointer
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIIVPROC)(GLuint index, GLenum pname, GLint *params);
+GLAPI PFNGLGETVERTEXATTRIBIIVPROC glad_glGetVertexAttribIiv;
+#define glGetVertexAttribIiv glad_glGetVertexAttribIiv
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIUIVPROC)(GLuint index, GLenum pname, GLuint *params);
+GLAPI PFNGLGETVERTEXATTRIBIUIVPROC glad_glGetVertexAttribIuiv;
+#define glGetVertexAttribIuiv glad_glGetVertexAttribIuiv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI1IPROC)(GLuint index, GLint x);
+GLAPI PFNGLVERTEXATTRIBI1IPROC glad_glVertexAttribI1i;
+#define glVertexAttribI1i glad_glVertexAttribI1i
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI2IPROC)(GLuint index, GLint x, GLint y);
+GLAPI PFNGLVERTEXATTRIBI2IPROC glad_glVertexAttribI2i;
+#define glVertexAttribI2i glad_glVertexAttribI2i
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI3IPROC)(GLuint index, GLint x, GLint y, GLint z);
+GLAPI PFNGLVERTEXATTRIBI3IPROC glad_glVertexAttribI3i;
+#define glVertexAttribI3i glad_glVertexAttribI3i
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI4IPROC)(GLuint index, GLint x, GLint y, GLint z, GLint w);
+GLAPI PFNGLVERTEXATTRIBI4IPROC glad_glVertexAttribI4i;
+#define glVertexAttribI4i glad_glVertexAttribI4i
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI1UIPROC)(GLuint index, GLuint x);
+GLAPI PFNGLVERTEXATTRIBI1UIPROC glad_glVertexAttribI1ui;
+#define glVertexAttribI1ui glad_glVertexAttribI1ui
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI2UIPROC)(GLuint index, GLuint x, GLuint y);
+GLAPI PFNGLVERTEXATTRIBI2UIPROC glad_glVertexAttribI2ui;
+#define glVertexAttribI2ui glad_glVertexAttribI2ui
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI3UIPROC)(GLuint index, GLuint x, GLuint y, GLuint z);
+GLAPI PFNGLVERTEXATTRIBI3UIPROC glad_glVertexAttribI3ui;
+#define glVertexAttribI3ui glad_glVertexAttribI3ui
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI4UIPROC)(GLuint index, GLuint x, GLuint y, GLuint z, GLuint w);
+GLAPI PFNGLVERTEXATTRIBI4UIPROC glad_glVertexAttribI4ui;
+#define glVertexAttribI4ui glad_glVertexAttribI4ui
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI1IVPROC)(GLuint index, const GLint *v);
+GLAPI PFNGLVERTEXATTRIBI1IVPROC glad_glVertexAttribI1iv;
+#define glVertexAttribI1iv glad_glVertexAttribI1iv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI2IVPROC)(GLuint index, const GLint *v);
+GLAPI PFNGLVERTEXATTRIBI2IVPROC glad_glVertexAttribI2iv;
+#define glVertexAttribI2iv glad_glVertexAttribI2iv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI3IVPROC)(GLuint index, const GLint *v);
+GLAPI PFNGLVERTEXATTRIBI3IVPROC glad_glVertexAttribI3iv;
+#define glVertexAttribI3iv glad_glVertexAttribI3iv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI4IVPROC)(GLuint index, const GLint *v);
+GLAPI PFNGLVERTEXATTRIBI4IVPROC glad_glVertexAttribI4iv;
+#define glVertexAttribI4iv glad_glVertexAttribI4iv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI1UIVPROC)(GLuint index, const GLuint *v);
+GLAPI PFNGLVERTEXATTRIBI1UIVPROC glad_glVertexAttribI1uiv;
+#define glVertexAttribI1uiv glad_glVertexAttribI1uiv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI2UIVPROC)(GLuint index, const GLuint *v);
+GLAPI PFNGLVERTEXATTRIBI2UIVPROC glad_glVertexAttribI2uiv;
+#define glVertexAttribI2uiv glad_glVertexAttribI2uiv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI3UIVPROC)(GLuint index, const GLuint *v);
+GLAPI PFNGLVERTEXATTRIBI3UIVPROC glad_glVertexAttribI3uiv;
+#define glVertexAttribI3uiv glad_glVertexAttribI3uiv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI4UIVPROC)(GLuint index, const GLuint *v);
+GLAPI PFNGLVERTEXATTRIBI4UIVPROC glad_glVertexAttribI4uiv;
+#define glVertexAttribI4uiv glad_glVertexAttribI4uiv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI4BVPROC)(GLuint index, const GLbyte *v);
+GLAPI PFNGLVERTEXATTRIBI4BVPROC glad_glVertexAttribI4bv;
+#define glVertexAttribI4bv glad_glVertexAttribI4bv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI4SVPROC)(GLuint index, const GLshort *v);
+GLAPI PFNGLVERTEXATTRIBI4SVPROC glad_glVertexAttribI4sv;
+#define glVertexAttribI4sv glad_glVertexAttribI4sv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI4UBVPROC)(GLuint index, const GLubyte *v);
+GLAPI PFNGLVERTEXATTRIBI4UBVPROC glad_glVertexAttribI4ubv;
+#define glVertexAttribI4ubv glad_glVertexAttribI4ubv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBI4USVPROC)(GLuint index, const GLushort *v);
+GLAPI PFNGLVERTEXATTRIBI4USVPROC glad_glVertexAttribI4usv;
+#define glVertexAttribI4usv glad_glVertexAttribI4usv
+typedef void (APIENTRYP PFNGLGETUNIFORMUIVPROC)(GLuint program, GLint location, GLuint *params);
+GLAPI PFNGLGETUNIFORMUIVPROC glad_glGetUniformuiv;
+#define glGetUniformuiv glad_glGetUniformuiv
+typedef void (APIENTRYP PFNGLBINDFRAGDATALOCATIONPROC)(GLuint program, GLuint color, const GLchar *name);
+GLAPI PFNGLBINDFRAGDATALOCATIONPROC glad_glBindFragDataLocation;
+#define glBindFragDataLocation glad_glBindFragDataLocation
+typedef GLint (APIENTRYP PFNGLGETFRAGDATALOCATIONPROC)(GLuint program, const GLchar *name);
+GLAPI PFNGLGETFRAGDATALOCATIONPROC glad_glGetFragDataLocation;
+#define glGetFragDataLocation glad_glGetFragDataLocation
+typedef void (APIENTRYP PFNGLUNIFORM1UIPROC)(GLint location, GLuint v0);
+GLAPI PFNGLUNIFORM1UIPROC glad_glUniform1ui;
+#define glUniform1ui glad_glUniform1ui
+typedef void (APIENTRYP PFNGLUNIFORM2UIPROC)(GLint location, GLuint v0, GLuint v1);
+GLAPI PFNGLUNIFORM2UIPROC glad_glUniform2ui;
+#define glUniform2ui glad_glUniform2ui
+typedef void (APIENTRYP PFNGLUNIFORM3UIPROC)(GLint location, GLuint v0, GLuint v1, GLuint v2);
+GLAPI PFNGLUNIFORM3UIPROC glad_glUniform3ui;
+#define glUniform3ui glad_glUniform3ui
+typedef void (APIENTRYP PFNGLUNIFORM4UIPROC)(GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3);
+GLAPI PFNGLUNIFORM4UIPROC glad_glUniform4ui;
+#define glUniform4ui glad_glUniform4ui
+typedef void (APIENTRYP PFNGLUNIFORM1UIVPROC)(GLint location, GLsizei count, const GLuint *value);
+GLAPI PFNGLUNIFORM1UIVPROC glad_glUniform1uiv;
+#define glUniform1uiv glad_glUniform1uiv
+typedef void (APIENTRYP PFNGLUNIFORM2UIVPROC)(GLint location, GLsizei count, const GLuint *value);
+GLAPI PFNGLUNIFORM2UIVPROC glad_glUniform2uiv;
+#define glUniform2uiv glad_glUniform2uiv
+typedef void (APIENTRYP PFNGLUNIFORM3UIVPROC)(GLint location, GLsizei count, const GLuint *value);
+GLAPI PFNGLUNIFORM3UIVPROC glad_glUniform3uiv;
+#define glUniform3uiv glad_glUniform3uiv
+typedef void (APIENTRYP PFNGLUNIFORM4UIVPROC)(GLint location, GLsizei count, const GLuint *value);
+GLAPI PFNGLUNIFORM4UIVPROC glad_glUniform4uiv;
+#define glUniform4uiv glad_glUniform4uiv
+typedef void (APIENTRYP PFNGLTEXPARAMETERIIVPROC)(GLenum target, GLenum pname, const GLint *params);
+GLAPI PFNGLTEXPARAMETERIIVPROC glad_glTexParameterIiv;
+#define glTexParameterIiv glad_glTexParameterIiv
+typedef void (APIENTRYP PFNGLTEXPARAMETERIUIVPROC)(GLenum target, GLenum pname, const GLuint *params);
+GLAPI PFNGLTEXPARAMETERIUIVPROC glad_glTexParameterIuiv;
+#define glTexParameterIuiv glad_glTexParameterIuiv
+typedef void (APIENTRYP PFNGLGETTEXPARAMETERIIVPROC)(GLenum target, GLenum pname, GLint *params);
+GLAPI PFNGLGETTEXPARAMETERIIVPROC glad_glGetTexParameterIiv;
+#define glGetTexParameterIiv glad_glGetTexParameterIiv
+typedef void (APIENTRYP PFNGLGETTEXPARAMETERIUIVPROC)(GLenum target, GLenum pname, GLuint *params);
+GLAPI PFNGLGETTEXPARAMETERIUIVPROC glad_glGetTexParameterIuiv;
+#define glGetTexParameterIuiv glad_glGetTexParameterIuiv
+typedef void (APIENTRYP PFNGLCLEARBUFFERIVPROC)(GLenum buffer, GLint drawbuffer, const GLint *value);
+GLAPI PFNGLCLEARBUFFERIVPROC glad_glClearBufferiv;
+#define glClearBufferiv glad_glClearBufferiv
+typedef void (APIENTRYP PFNGLCLEARBUFFERUIVPROC)(GLenum buffer, GLint drawbuffer, const GLuint *value);
+GLAPI PFNGLCLEARBUFFERUIVPROC glad_glClearBufferuiv;
+#define glClearBufferuiv glad_glClearBufferuiv
+typedef void (APIENTRYP PFNGLCLEARBUFFERFVPROC)(GLenum buffer, GLint drawbuffer, const GLfloat *value);
+GLAPI PFNGLCLEARBUFFERFVPROC glad_glClearBufferfv;
+#define glClearBufferfv glad_glClearBufferfv
+typedef void (APIENTRYP PFNGLCLEARBUFFERFIPROC)(GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
+GLAPI PFNGLCLEARBUFFERFIPROC glad_glClearBufferfi;
+#define glClearBufferfi glad_glClearBufferfi
+typedef const GLubyte * (APIENTRYP PFNGLGETSTRINGIPROC)(GLenum name, GLuint index);
+GLAPI PFNGLGETSTRINGIPROC glad_glGetStringi;
+#define glGetStringi glad_glGetStringi
+typedef GLboolean (APIENTRYP PFNGLISRENDERBUFFERPROC)(GLuint renderbuffer);
+GLAPI PFNGLISRENDERBUFFERPROC glad_glIsRenderbuffer;
+#define glIsRenderbuffer glad_glIsRenderbuffer
+typedef void (APIENTRYP PFNGLBINDRENDERBUFFERPROC)(GLenum target, GLuint renderbuffer);
+GLAPI PFNGLBINDRENDERBUFFERPROC glad_glBindRenderbuffer;
+#define glBindRenderbuffer glad_glBindRenderbuffer
+typedef void (APIENTRYP PFNGLDELETERENDERBUFFERSPROC)(GLsizei n, const GLuint *renderbuffers);
+GLAPI PFNGLDELETERENDERBUFFERSPROC glad_glDeleteRenderbuffers;
+#define glDeleteRenderbuffers glad_glDeleteRenderbuffers
+typedef void (APIENTRYP PFNGLGENRENDERBUFFERSPROC)(GLsizei n, GLuint *renderbuffers);
+GLAPI PFNGLGENRENDERBUFFERSPROC glad_glGenRenderbuffers;
+#define glGenRenderbuffers glad_glGenRenderbuffers
+typedef void (APIENTRYP PFNGLRENDERBUFFERSTORAGEPROC)(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
+GLAPI PFNGLRENDERBUFFERSTORAGEPROC glad_glRenderbufferStorage;
+#define glRenderbufferStorage glad_glRenderbufferStorage
+typedef void (APIENTRYP PFNGLGETRENDERBUFFERPARAMETERIVPROC)(GLenum target, GLenum pname, GLint *params);
+GLAPI PFNGLGETRENDERBUFFERPARAMETERIVPROC glad_glGetRenderbufferParameteriv;
+#define glGetRenderbufferParameteriv glad_glGetRenderbufferParameteriv
+typedef GLboolean (APIENTRYP PFNGLISFRAMEBUFFERPROC)(GLuint framebuffer);
+GLAPI PFNGLISFRAMEBUFFERPROC glad_glIsFramebuffer;
+#define glIsFramebuffer glad_glIsFramebuffer
+typedef void (APIENTRYP PFNGLBINDFRAMEBUFFERPROC)(GLenum target, GLuint framebuffer);
+GLAPI PFNGLBINDFRAMEBUFFERPROC glad_glBindFramebuffer;
+#define glBindFramebuffer glad_glBindFramebuffer
+typedef void (APIENTRYP PFNGLDELETEFRAMEBUFFERSPROC)(GLsizei n, const GLuint *framebuffers);
+GLAPI PFNGLDELETEFRAMEBUFFERSPROC glad_glDeleteFramebuffers;
+#define glDeleteFramebuffers glad_glDeleteFramebuffers
+typedef void (APIENTRYP PFNGLGENFRAMEBUFFERSPROC)(GLsizei n, GLuint *framebuffers);
+GLAPI PFNGLGENFRAMEBUFFERSPROC glad_glGenFramebuffers;
+#define glGenFramebuffers glad_glGenFramebuffers
+typedef GLenum (APIENTRYP PFNGLCHECKFRAMEBUFFERSTATUSPROC)(GLenum target);
+GLAPI PFNGLCHECKFRAMEBUFFERSTATUSPROC glad_glCheckFramebufferStatus;
+#define glCheckFramebufferStatus glad_glCheckFramebufferStatus
+typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURE1DPROC)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
+GLAPI PFNGLFRAMEBUFFERTEXTURE1DPROC glad_glFramebufferTexture1D;
+#define glFramebufferTexture1D glad_glFramebufferTexture1D
+typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURE2DPROC)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
+GLAPI PFNGLFRAMEBUFFERTEXTURE2DPROC glad_glFramebufferTexture2D;
+#define glFramebufferTexture2D glad_glFramebufferTexture2D
+typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURE3DPROC)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset);
+GLAPI PFNGLFRAMEBUFFERTEXTURE3DPROC glad_glFramebufferTexture3D;
+#define glFramebufferTexture3D glad_glFramebufferTexture3D
+typedef void (APIENTRYP PFNGLFRAMEBUFFERRENDERBUFFERPROC)(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
+GLAPI PFNGLFRAMEBUFFERRENDERBUFFERPROC glad_glFramebufferRenderbuffer;
+#define glFramebufferRenderbuffer glad_glFramebufferRenderbuffer
+typedef void (APIENTRYP PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)(GLenum target, GLenum attachment, GLenum pname, GLint *params);
+GLAPI PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glad_glGetFramebufferAttachmentParameteriv;
+#define glGetFramebufferAttachmentParameteriv glad_glGetFramebufferAttachmentParameteriv
+typedef void (APIENTRYP PFNGLGENERATEMIPMAPPROC)(GLenum target);
+GLAPI PFNGLGENERATEMIPMAPPROC glad_glGenerateMipmap;
+#define glGenerateMipmap glad_glGenerateMipmap
+typedef void (APIENTRYP PFNGLBLITFRAMEBUFFERPROC)(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
+GLAPI PFNGLBLITFRAMEBUFFERPROC glad_glBlitFramebuffer;
+#define glBlitFramebuffer glad_glBlitFramebuffer
+typedef void (APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height);
+GLAPI PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC glad_glRenderbufferStorageMultisample;
+#define glRenderbufferStorageMultisample glad_glRenderbufferStorageMultisample
+typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURELAYERPROC)(GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer);
+GLAPI PFNGLFRAMEBUFFERTEXTURELAYERPROC glad_glFramebufferTextureLayer;
+#define glFramebufferTextureLayer glad_glFramebufferTextureLayer
+typedef void * (APIENTRYP PFNGLMAPBUFFERRANGEPROC)(GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access);
+GLAPI PFNGLMAPBUFFERRANGEPROC glad_glMapBufferRange;
+#define glMapBufferRange glad_glMapBufferRange
+typedef void (APIENTRYP PFNGLFLUSHMAPPEDBUFFERRANGEPROC)(GLenum target, GLintptr offset, GLsizeiptr length);
+GLAPI PFNGLFLUSHMAPPEDBUFFERRANGEPROC glad_glFlushMappedBufferRange;
+#define glFlushMappedBufferRange glad_glFlushMappedBufferRange
+typedef void (APIENTRYP PFNGLBINDVERTEXARRAYPROC)(GLuint array);
+GLAPI PFNGLBINDVERTEXARRAYPROC glad_glBindVertexArray;
+#define glBindVertexArray glad_glBindVertexArray
+typedef void (APIENTRYP PFNGLDELETEVERTEXARRAYSPROC)(GLsizei n, const GLuint *arrays);
+GLAPI PFNGLDELETEVERTEXARRAYSPROC glad_glDeleteVertexArrays;
+#define glDeleteVertexArrays glad_glDeleteVertexArrays
+typedef void (APIENTRYP PFNGLGENVERTEXARRAYSPROC)(GLsizei n, GLuint *arrays);
+GLAPI PFNGLGENVERTEXARRAYSPROC glad_glGenVertexArrays;
+#define glGenVertexArrays glad_glGenVertexArrays
+typedef GLboolean (APIENTRYP PFNGLISVERTEXARRAYPROC)(GLuint array);
+GLAPI PFNGLISVERTEXARRAYPROC glad_glIsVertexArray;
+#define glIsVertexArray glad_glIsVertexArray
+#endif
+#ifndef GL_VERSION_3_1
+#define GL_VERSION_3_1 1
+GLAPI int GLAD_GL_VERSION_3_1;
+typedef void (APIENTRYP PFNGLDRAWARRAYSINSTANCEDPROC)(GLenum mode, GLint first, GLsizei count, GLsizei instancecount);
+GLAPI PFNGLDRAWARRAYSINSTANCEDPROC glad_glDrawArraysInstanced;
+#define glDrawArraysInstanced glad_glDrawArraysInstanced
+typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDPROC)(GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount);
+GLAPI PFNGLDRAWELEMENTSINSTANCEDPROC glad_glDrawElementsInstanced;
+#define glDrawElementsInstanced glad_glDrawElementsInstanced
+typedef void (APIENTRYP PFNGLTEXBUFFERPROC)(GLenum target, GLenum internalformat, GLuint buffer);
+GLAPI PFNGLTEXBUFFERPROC glad_glTexBuffer;
+#define glTexBuffer glad_glTexBuffer
+typedef void (APIENTRYP PFNGLPRIMITIVERESTARTINDEXPROC)(GLuint index);
+GLAPI PFNGLPRIMITIVERESTARTINDEXPROC glad_glPrimitiveRestartIndex;
+#define glPrimitiveRestartIndex glad_glPrimitiveRestartIndex
+typedef void (APIENTRYP PFNGLCOPYBUFFERSUBDATAPROC)(GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size);
+GLAPI PFNGLCOPYBUFFERSUBDATAPROC glad_glCopyBufferSubData;
+#define glCopyBufferSubData glad_glCopyBufferSubData
+typedef void (APIENTRYP PFNGLGETUNIFORMINDICESPROC)(GLuint program, GLsizei uniformCount, const GLchar *const*uniformNames, GLuint *uniformIndices);
+GLAPI PFNGLGETUNIFORMINDICESPROC glad_glGetUniformIndices;
+#define glGetUniformIndices glad_glGetUniformIndices
+typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMSIVPROC)(GLuint program, GLsizei uniformCount, const GLuint *uniformIndices, GLenum pname, GLint *params);
+GLAPI PFNGLGETACTIVEUNIFORMSIVPROC glad_glGetActiveUniformsiv;
+#define glGetActiveUniformsiv glad_glGetActiveUniformsiv
+typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMNAMEPROC)(GLuint program, GLuint uniformIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformName);
+GLAPI PFNGLGETACTIVEUNIFORMNAMEPROC glad_glGetActiveUniformName;
+#define glGetActiveUniformName glad_glGetActiveUniformName
+typedef GLuint (APIENTRYP PFNGLGETUNIFORMBLOCKINDEXPROC)(GLuint program, const GLchar *uniformBlockName);
+GLAPI PFNGLGETUNIFORMBLOCKINDEXPROC glad_glGetUniformBlockIndex;
+#define glGetUniformBlockIndex glad_glGetUniformBlockIndex
+typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMBLOCKIVPROC)(GLuint program, GLuint uniformBlockIndex, GLenum pname, GLint *params);
+GLAPI PFNGLGETACTIVEUNIFORMBLOCKIVPROC glad_glGetActiveUniformBlockiv;
+#define glGetActiveUniformBlockiv glad_glGetActiveUniformBlockiv
+typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC)(GLuint program, GLuint uniformBlockIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformBlockName);
+GLAPI PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC glad_glGetActiveUniformBlockName;
+#define glGetActiveUniformBlockName glad_glGetActiveUniformBlockName
+typedef void (APIENTRYP PFNGLUNIFORMBLOCKBINDINGPROC)(GLuint program, GLuint uniformBlockIndex, GLuint uniformBlockBinding);
+GLAPI PFNGLUNIFORMBLOCKBINDINGPROC glad_glUniformBlockBinding;
+#define glUniformBlockBinding glad_glUniformBlockBinding
+#endif
+#ifndef GL_VERSION_3_2
+#define GL_VERSION_3_2 1
+GLAPI int GLAD_GL_VERSION_3_2;
+typedef void (APIENTRYP PFNGLDRAWELEMENTSBASEVERTEXPROC)(GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex);
+GLAPI PFNGLDRAWELEMENTSBASEVERTEXPROC glad_glDrawElementsBaseVertex;
+#define glDrawElementsBaseVertex glad_glDrawElementsBaseVertex
+typedef void (APIENTRYP PFNGLDRAWRANGEELEMENTSBASEVERTEXPROC)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices, GLint basevertex);
+GLAPI PFNGLDRAWRANGEELEMENTSBASEVERTEXPROC glad_glDrawRangeElementsBaseVertex;
+#define glDrawRangeElementsBaseVertex glad_glDrawRangeElementsBaseVertex
+typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)(GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex);
+GLAPI PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC glad_glDrawElementsInstancedBaseVertex;
+#define glDrawElementsInstancedBaseVertex glad_glDrawElementsInstancedBaseVertex
+typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSBASEVERTEXPROC)(GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei drawcount, const GLint *basevertex);
+GLAPI PFNGLMULTIDRAWELEMENTSBASEVERTEXPROC glad_glMultiDrawElementsBaseVertex;
+#define glMultiDrawElementsBaseVertex glad_glMultiDrawElementsBaseVertex
+typedef void (APIENTRYP PFNGLPROVOKINGVERTEXPROC)(GLenum mode);
+GLAPI PFNGLPROVOKINGVERTEXPROC glad_glProvokingVertex;
+#define glProvokingVertex glad_glProvokingVertex
+typedef GLsync (APIENTRYP PFNGLFENCESYNCPROC)(GLenum condition, GLbitfield flags);
+GLAPI PFNGLFENCESYNCPROC glad_glFenceSync;
+#define glFenceSync glad_glFenceSync
+typedef GLboolean (APIENTRYP PFNGLISSYNCPROC)(GLsync sync);
+GLAPI PFNGLISSYNCPROC glad_glIsSync;
+#define glIsSync glad_glIsSync
+typedef void (APIENTRYP PFNGLDELETESYNCPROC)(GLsync sync);
+GLAPI PFNGLDELETESYNCPROC glad_glDeleteSync;
+#define glDeleteSync glad_glDeleteSync
+typedef GLenum (APIENTRYP PFNGLCLIENTWAITSYNCPROC)(GLsync sync, GLbitfield flags, GLuint64 timeout);
+GLAPI PFNGLCLIENTWAITSYNCPROC glad_glClientWaitSync;
+#define glClientWaitSync glad_glClientWaitSync
+typedef void (APIENTRYP PFNGLWAITSYNCPROC)(GLsync sync, GLbitfield flags, GLuint64 timeout);
+GLAPI PFNGLWAITSYNCPROC glad_glWaitSync;
+#define glWaitSync glad_glWaitSync
+typedef void (APIENTRYP PFNGLGETINTEGER64VPROC)(GLenum pname, GLint64 *data);
+GLAPI PFNGLGETINTEGER64VPROC glad_glGetInteger64v;
+#define glGetInteger64v glad_glGetInteger64v
+typedef void (APIENTRYP PFNGLGETSYNCIVPROC)(GLsync sync, GLenum pname, GLsizei count, GLsizei *length, GLint *values);
+GLAPI PFNGLGETSYNCIVPROC glad_glGetSynciv;
+#define glGetSynciv glad_glGetSynciv
+typedef void (APIENTRYP PFNGLGETINTEGER64I_VPROC)(GLenum target, GLuint index, GLint64 *data);
+GLAPI PFNGLGETINTEGER64I_VPROC glad_glGetInteger64i_v;
+#define glGetInteger64i_v glad_glGetInteger64i_v
+typedef void (APIENTRYP PFNGLGETBUFFERPARAMETERI64VPROC)(GLenum target, GLenum pname, GLint64 *params);
+GLAPI PFNGLGETBUFFERPARAMETERI64VPROC glad_glGetBufferParameteri64v;
+#define glGetBufferParameteri64v glad_glGetBufferParameteri64v
+typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTUREPROC)(GLenum target, GLenum attachment, GLuint texture, GLint level);
+GLAPI PFNGLFRAMEBUFFERTEXTUREPROC glad_glFramebufferTexture;
+#define glFramebufferTexture glad_glFramebufferTexture
+typedef void (APIENTRYP PFNGLTEXIMAGE2DMULTISAMPLEPROC)(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations);
+GLAPI PFNGLTEXIMAGE2DMULTISAMPLEPROC glad_glTexImage2DMultisample;
+#define glTexImage2DMultisample glad_glTexImage2DMultisample
+typedef void (APIENTRYP PFNGLTEXIMAGE3DMULTISAMPLEPROC)(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations);
+GLAPI PFNGLTEXIMAGE3DMULTISAMPLEPROC glad_glTexImage3DMultisample;
+#define glTexImage3DMultisample glad_glTexImage3DMultisample
+typedef void (APIENTRYP PFNGLGETMULTISAMPLEFVPROC)(GLenum pname, GLuint index, GLfloat *val);
+GLAPI PFNGLGETMULTISAMPLEFVPROC glad_glGetMultisamplefv;
+#define glGetMultisamplefv glad_glGetMultisamplefv
+typedef void (APIENTRYP PFNGLSAMPLEMASKIPROC)(GLuint maskNumber, GLbitfield mask);
+GLAPI PFNGLSAMPLEMASKIPROC glad_glSampleMaski;
+#define glSampleMaski glad_glSampleMaski
+#endif
+#ifndef GL_VERSION_3_3
+#define GL_VERSION_3_3 1
+GLAPI int GLAD_GL_VERSION_3_3;
+typedef void (APIENTRYP PFNGLBINDFRAGDATALOCATIONINDEXEDPROC)(GLuint program, GLuint colorNumber, GLuint index, const GLchar *name);
+GLAPI PFNGLBINDFRAGDATALOCATIONINDEXEDPROC glad_glBindFragDataLocationIndexed;
+#define glBindFragDataLocationIndexed glad_glBindFragDataLocationIndexed
+typedef GLint (APIENTRYP PFNGLGETFRAGDATAINDEXPROC)(GLuint program, const GLchar *name);
+GLAPI PFNGLGETFRAGDATAINDEXPROC glad_glGetFragDataIndex;
+#define glGetFragDataIndex glad_glGetFragDataIndex
+typedef void (APIENTRYP PFNGLGENSAMPLERSPROC)(GLsizei count, GLuint *samplers);
+GLAPI PFNGLGENSAMPLERSPROC glad_glGenSamplers;
+#define glGenSamplers glad_glGenSamplers
+typedef void (APIENTRYP PFNGLDELETESAMPLERSPROC)(GLsizei count, const GLuint *samplers);
+GLAPI PFNGLDELETESAMPLERSPROC glad_glDeleteSamplers;
+#define glDeleteSamplers glad_glDeleteSamplers
+typedef GLboolean (APIENTRYP PFNGLISSAMPLERPROC)(GLuint sampler);
+GLAPI PFNGLISSAMPLERPROC glad_glIsSampler;
+#define glIsSampler glad_glIsSampler
+typedef void (APIENTRYP PFNGLBINDSAMPLERPROC)(GLuint unit, GLuint sampler);
+GLAPI PFNGLBINDSAMPLERPROC glad_glBindSampler;
+#define glBindSampler glad_glBindSampler
+typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIPROC)(GLuint sampler, GLenum pname, GLint param);
+GLAPI PFNGLSAMPLERPARAMETERIPROC glad_glSamplerParameteri;
+#define glSamplerParameteri glad_glSamplerParameteri
+typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIVPROC)(GLuint sampler, GLenum pname, const GLint *param);
+GLAPI PFNGLSAMPLERPARAMETERIVPROC glad_glSamplerParameteriv;
+#define glSamplerParameteriv glad_glSamplerParameteriv
+typedef void (APIENTRYP PFNGLSAMPLERPARAMETERFPROC)(GLuint sampler, GLenum pname, GLfloat param);
+GLAPI PFNGLSAMPLERPARAMETERFPROC glad_glSamplerParameterf;
+#define glSamplerParameterf glad_glSamplerParameterf
+typedef void (APIENTRYP PFNGLSAMPLERPARAMETERFVPROC)(GLuint sampler, GLenum pname, const GLfloat *param);
+GLAPI PFNGLSAMPLERPARAMETERFVPROC glad_glSamplerParameterfv;
+#define glSamplerParameterfv glad_glSamplerParameterfv
+typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIIVPROC)(GLuint sampler, GLenum pname, const GLint *param);
+GLAPI PFNGLSAMPLERPARAMETERIIVPROC glad_glSamplerParameterIiv;
+#define glSamplerParameterIiv glad_glSamplerParameterIiv
+typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIUIVPROC)(GLuint sampler, GLenum pname, const GLuint *param);
+GLAPI PFNGLSAMPLERPARAMETERIUIVPROC glad_glSamplerParameterIuiv;
+#define glSamplerParameterIuiv glad_glSamplerParameterIuiv
+typedef void (APIENTRYP PFNGLGETSAMPLERPARAMETERIVPROC)(GLuint sampler, GLenum pname, GLint *params);
+GLAPI PFNGLGETSAMPLERPARAMETERIVPROC glad_glGetSamplerParameteriv;
+#define glGetSamplerParameteriv glad_glGetSamplerParameteriv
+typedef void (APIENTRYP PFNGLGETSAMPLERPARAMETERIIVPROC)(GLuint sampler, GLenum pname, GLint *params);
+GLAPI PFNGLGETSAMPLERPARAMETERIIVPROC glad_glGetSamplerParameterIiv;
+#define glGetSamplerParameterIiv glad_glGetSamplerParameterIiv
+typedef void (APIENTRYP PFNGLGETSAMPLERPARAMETERFVPROC)(GLuint sampler, GLenum pname, GLfloat *params);
+GLAPI PFNGLGETSAMPLERPARAMETERFVPROC glad_glGetSamplerParameterfv;
+#define glGetSamplerParameterfv glad_glGetSamplerParameterfv
+typedef void (APIENTRYP PFNGLGETSAMPLERPARAMETERIUIVPROC)(GLuint sampler, GLenum pname, GLuint *params);
+GLAPI PFNGLGETSAMPLERPARAMETERIUIVPROC glad_glGetSamplerParameterIuiv;
+#define glGetSamplerParameterIuiv glad_glGetSamplerParameterIuiv
+typedef void (APIENTRYP PFNGLQUERYCOUNTERPROC)(GLuint id, GLenum target);
+GLAPI PFNGLQUERYCOUNTERPROC glad_glQueryCounter;
+#define glQueryCounter glad_glQueryCounter
+typedef void (APIENTRYP PFNGLGETQUERYOBJECTI64VPROC)(GLuint id, GLenum pname, GLint64 *params);
+GLAPI PFNGLGETQUERYOBJECTI64VPROC glad_glGetQueryObjecti64v;
+#define glGetQueryObjecti64v glad_glGetQueryObjecti64v
+typedef void (APIENTRYP PFNGLGETQUERYOBJECTUI64VPROC)(GLuint id, GLenum pname, GLuint64 *params);
+GLAPI PFNGLGETQUERYOBJECTUI64VPROC glad_glGetQueryObjectui64v;
+#define glGetQueryObjectui64v glad_glGetQueryObjectui64v
+typedef void (APIENTRYP PFNGLVERTEXATTRIBDIVISORPROC)(GLuint index, GLuint divisor);
+GLAPI PFNGLVERTEXATTRIBDIVISORPROC glad_glVertexAttribDivisor;
+#define glVertexAttribDivisor glad_glVertexAttribDivisor
+typedef void (APIENTRYP PFNGLVERTEXATTRIBP1UIPROC)(GLuint index, GLenum type, GLboolean normalized, GLuint value);
+GLAPI PFNGLVERTEXATTRIBP1UIPROC glad_glVertexAttribP1ui;
+#define glVertexAttribP1ui glad_glVertexAttribP1ui
+typedef void (APIENTRYP PFNGLVERTEXATTRIBP1UIVPROC)(GLuint index, GLenum type, GLboolean normalized, const GLuint *value);
+GLAPI PFNGLVERTEXATTRIBP1UIVPROC glad_glVertexAttribP1uiv;
+#define glVertexAttribP1uiv glad_glVertexAttribP1uiv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBP2UIPROC)(GLuint index, GLenum type, GLboolean normalized, GLuint value);
+GLAPI PFNGLVERTEXATTRIBP2UIPROC glad_glVertexAttribP2ui;
+#define glVertexAttribP2ui glad_glVertexAttribP2ui
+typedef void (APIENTRYP PFNGLVERTEXATTRIBP2UIVPROC)(GLuint index, GLenum type, GLboolean normalized, const GLuint *value);
+GLAPI PFNGLVERTEXATTRIBP2UIVPROC glad_glVertexAttribP2uiv;
+#define glVertexAttribP2uiv glad_glVertexAttribP2uiv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBP3UIPROC)(GLuint index, GLenum type, GLboolean normalized, GLuint value);
+GLAPI PFNGLVERTEXATTRIBP3UIPROC glad_glVertexAttribP3ui;
+#define glVertexAttribP3ui glad_glVertexAttribP3ui
+typedef void (APIENTRYP PFNGLVERTEXATTRIBP3UIVPROC)(GLuint index, GLenum type, GLboolean normalized, const GLuint *value);
+GLAPI PFNGLVERTEXATTRIBP3UIVPROC glad_glVertexAttribP3uiv;
+#define glVertexAttribP3uiv glad_glVertexAttribP3uiv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBP4UIPROC)(GLuint index, GLenum type, GLboolean normalized, GLuint value);
+GLAPI PFNGLVERTEXATTRIBP4UIPROC glad_glVertexAttribP4ui;
+#define glVertexAttribP4ui glad_glVertexAttribP4ui
+typedef void (APIENTRYP PFNGLVERTEXATTRIBP4UIVPROC)(GLuint index, GLenum type, GLboolean normalized, const GLuint *value);
+GLAPI PFNGLVERTEXATTRIBP4UIVPROC glad_glVertexAttribP4uiv;
+#define glVertexAttribP4uiv glad_glVertexAttribP4uiv
+typedef void (APIENTRYP PFNGLVERTEXP2UIPROC)(GLenum type, GLuint value);
+GLAPI PFNGLVERTEXP2UIPROC glad_glVertexP2ui;
+#define glVertexP2ui glad_glVertexP2ui
+typedef void (APIENTRYP PFNGLVERTEXP2UIVPROC)(GLenum type, const GLuint *value);
+GLAPI PFNGLVERTEXP2UIVPROC glad_glVertexP2uiv;
+#define glVertexP2uiv glad_glVertexP2uiv
+typedef void (APIENTRYP PFNGLVERTEXP3UIPROC)(GLenum type, GLuint value);
+GLAPI PFNGLVERTEXP3UIPROC glad_glVertexP3ui;
+#define glVertexP3ui glad_glVertexP3ui
+typedef void (APIENTRYP PFNGLVERTEXP3UIVPROC)(GLenum type, const GLuint *value);
+GLAPI PFNGLVERTEXP3UIVPROC glad_glVertexP3uiv;
+#define glVertexP3uiv glad_glVertexP3uiv
+typedef void (APIENTRYP PFNGLVERTEXP4UIPROC)(GLenum type, GLuint value);
+GLAPI PFNGLVERTEXP4UIPROC glad_glVertexP4ui;
+#define glVertexP4ui glad_glVertexP4ui
+typedef void (APIENTRYP PFNGLVERTEXP4UIVPROC)(GLenum type, const GLuint *value);
+GLAPI PFNGLVERTEXP4UIVPROC glad_glVertexP4uiv;
+#define glVertexP4uiv glad_glVertexP4uiv
+typedef void (APIENTRYP PFNGLTEXCOORDP1UIPROC)(GLenum type, GLuint coords);
+GLAPI PFNGLTEXCOORDP1UIPROC glad_glTexCoordP1ui;
+#define glTexCoordP1ui glad_glTexCoordP1ui
+typedef void (APIENTRYP PFNGLTEXCOORDP1UIVPROC)(GLenum type, const GLuint *coords);
+GLAPI PFNGLTEXCOORDP1UIVPROC glad_glTexCoordP1uiv;
+#define glTexCoordP1uiv glad_glTexCoordP1uiv
+typedef void (APIENTRYP PFNGLTEXCOORDP2UIPROC)(GLenum type, GLuint coords);
+GLAPI PFNGLTEXCOORDP2UIPROC glad_glTexCoordP2ui;
+#define glTexCoordP2ui glad_glTexCoordP2ui
+typedef void (APIENTRYP PFNGLTEXCOORDP2UIVPROC)(GLenum type, const GLuint *coords);
+GLAPI PFNGLTEXCOORDP2UIVPROC glad_glTexCoordP2uiv;
+#define glTexCoordP2uiv glad_glTexCoordP2uiv
+typedef void (APIENTRYP PFNGLTEXCOORDP3UIPROC)(GLenum type, GLuint coords);
+GLAPI PFNGLTEXCOORDP3UIPROC glad_glTexCoordP3ui;
+#define glTexCoordP3ui glad_glTexCoordP3ui
+typedef void (APIENTRYP PFNGLTEXCOORDP3UIVPROC)(GLenum type, const GLuint *coords);
+GLAPI PFNGLTEXCOORDP3UIVPROC glad_glTexCoordP3uiv;
+#define glTexCoordP3uiv glad_glTexCoordP3uiv
+typedef void (APIENTRYP PFNGLTEXCOORDP4UIPROC)(GLenum type, GLuint coords);
+GLAPI PFNGLTEXCOORDP4UIPROC glad_glTexCoordP4ui;
+#define glTexCoordP4ui glad_glTexCoordP4ui
+typedef void (APIENTRYP PFNGLTEXCOORDP4UIVPROC)(GLenum type, const GLuint *coords);
+GLAPI PFNGLTEXCOORDP4UIVPROC glad_glTexCoordP4uiv;
+#define glTexCoordP4uiv glad_glTexCoordP4uiv
+typedef void (APIENTRYP PFNGLMULTITEXCOORDP1UIPROC)(GLenum texture, GLenum type, GLuint coords);
+GLAPI PFNGLMULTITEXCOORDP1UIPROC glad_glMultiTexCoordP1ui;
+#define glMultiTexCoordP1ui glad_glMultiTexCoordP1ui
+typedef void (APIENTRYP PFNGLMULTITEXCOORDP1UIVPROC)(GLenum texture, GLenum type, const GLuint *coords);
+GLAPI PFNGLMULTITEXCOORDP1UIVPROC glad_glMultiTexCoordP1uiv;
+#define glMultiTexCoordP1uiv glad_glMultiTexCoordP1uiv
+typedef void (APIENTRYP PFNGLMULTITEXCOORDP2UIPROC)(GLenum texture, GLenum type, GLuint coords);
+GLAPI PFNGLMULTITEXCOORDP2UIPROC glad_glMultiTexCoordP2ui;
+#define glMultiTexCoordP2ui glad_glMultiTexCoordP2ui
+typedef void (APIENTRYP PFNGLMULTITEXCOORDP2UIVPROC)(GLenum texture, GLenum type, const GLuint *coords);
+GLAPI PFNGLMULTITEXCOORDP2UIVPROC glad_glMultiTexCoordP2uiv;
+#define glMultiTexCoordP2uiv glad_glMultiTexCoordP2uiv
+typedef void (APIENTRYP PFNGLMULTITEXCOORDP3UIPROC)(GLenum texture, GLenum type, GLuint coords);
+GLAPI PFNGLMULTITEXCOORDP3UIPROC glad_glMultiTexCoordP3ui;
+#define glMultiTexCoordP3ui glad_glMultiTexCoordP3ui
+typedef void (APIENTRYP PFNGLMULTITEXCOORDP3UIVPROC)(GLenum texture, GLenum type, const GLuint *coords);
+GLAPI PFNGLMULTITEXCOORDP3UIVPROC glad_glMultiTexCoordP3uiv;
+#define glMultiTexCoordP3uiv glad_glMultiTexCoordP3uiv
+typedef void (APIENTRYP PFNGLMULTITEXCOORDP4UIPROC)(GLenum texture, GLenum type, GLuint coords);
+GLAPI PFNGLMULTITEXCOORDP4UIPROC glad_glMultiTexCoordP4ui;
+#define glMultiTexCoordP4ui glad_glMultiTexCoordP4ui
+typedef void (APIENTRYP PFNGLMULTITEXCOORDP4UIVPROC)(GLenum texture, GLenum type, const GLuint *coords);
+GLAPI PFNGLMULTITEXCOORDP4UIVPROC glad_glMultiTexCoordP4uiv;
+#define glMultiTexCoordP4uiv glad_glMultiTexCoordP4uiv
+typedef void (APIENTRYP PFNGLNORMALP3UIPROC)(GLenum type, GLuint coords);
+GLAPI PFNGLNORMALP3UIPROC glad_glNormalP3ui;
+#define glNormalP3ui glad_glNormalP3ui
+typedef void (APIENTRYP PFNGLNORMALP3UIVPROC)(GLenum type, const GLuint *coords);
+GLAPI PFNGLNORMALP3UIVPROC glad_glNormalP3uiv;
+#define glNormalP3uiv glad_glNormalP3uiv
+typedef void (APIENTRYP PFNGLCOLORP3UIPROC)(GLenum type, GLuint color);
+GLAPI PFNGLCOLORP3UIPROC glad_glColorP3ui;
+#define glColorP3ui glad_glColorP3ui
+typedef void (APIENTRYP PFNGLCOLORP3UIVPROC)(GLenum type, const GLuint *color);
+GLAPI PFNGLCOLORP3UIVPROC glad_glColorP3uiv;
+#define glColorP3uiv glad_glColorP3uiv
+typedef void (APIENTRYP PFNGLCOLORP4UIPROC)(GLenum type, GLuint color);
+GLAPI PFNGLCOLORP4UIPROC glad_glColorP4ui;
+#define glColorP4ui glad_glColorP4ui
+typedef void (APIENTRYP PFNGLCOLORP4UIVPROC)(GLenum type, const GLuint *color);
+GLAPI PFNGLCOLORP4UIVPROC glad_glColorP4uiv;
+#define glColorP4uiv glad_glColorP4uiv
+typedef void (APIENTRYP PFNGLSECONDARYCOLORP3UIPROC)(GLenum type, GLuint color);
+GLAPI PFNGLSECONDARYCOLORP3UIPROC glad_glSecondaryColorP3ui;
+#define glSecondaryColorP3ui glad_glSecondaryColorP3ui
+typedef void (APIENTRYP PFNGLSECONDARYCOLORP3UIVPROC)(GLenum type, const GLuint *color);
+GLAPI PFNGLSECONDARYCOLORP3UIVPROC glad_glSecondaryColorP3uiv;
+#define glSecondaryColorP3uiv glad_glSecondaryColorP3uiv
+#endif
+#ifndef GL_VERSION_4_0
+#define GL_VERSION_4_0 1
+GLAPI int GLAD_GL_VERSION_4_0;
+typedef void (APIENTRYP PFNGLMINSAMPLESHADINGPROC)(GLfloat value);
+GLAPI PFNGLMINSAMPLESHADINGPROC glad_glMinSampleShading;
+#define glMinSampleShading glad_glMinSampleShading
+typedef void (APIENTRYP PFNGLBLENDEQUATIONIPROC)(GLuint buf, GLenum mode);
+GLAPI PFNGLBLENDEQUATIONIPROC glad_glBlendEquationi;
+#define glBlendEquationi glad_glBlendEquationi
+typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEIPROC)(GLuint buf, GLenum modeRGB, GLenum modeAlpha);
+GLAPI PFNGLBLENDEQUATIONSEPARATEIPROC glad_glBlendEquationSeparatei;
+#define glBlendEquationSeparatei glad_glBlendEquationSeparatei
+typedef void (APIENTRYP PFNGLBLENDFUNCIPROC)(GLuint buf, GLenum src, GLenum dst);
+GLAPI PFNGLBLENDFUNCIPROC glad_glBlendFunci;
+#define glBlendFunci glad_glBlendFunci
+typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEIPROC)(GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha);
+GLAPI PFNGLBLENDFUNCSEPARATEIPROC glad_glBlendFuncSeparatei;
+#define glBlendFuncSeparatei glad_glBlendFuncSeparatei
+typedef void (APIENTRYP PFNGLDRAWARRAYSINDIRECTPROC)(GLenum mode, const void *indirect);
+GLAPI PFNGLDRAWARRAYSINDIRECTPROC glad_glDrawArraysIndirect;
+#define glDrawArraysIndirect glad_glDrawArraysIndirect
+typedef void (APIENTRYP PFNGLDRAWELEMENTSINDIRECTPROC)(GLenum mode, GLenum type, const void *indirect);
+GLAPI PFNGLDRAWELEMENTSINDIRECTPROC glad_glDrawElementsIndirect;
+#define glDrawElementsIndirect glad_glDrawElementsIndirect
+typedef void (APIENTRYP PFNGLUNIFORM1DPROC)(GLint location, GLdouble x);
+GLAPI PFNGLUNIFORM1DPROC glad_glUniform1d;
+#define glUniform1d glad_glUniform1d
+typedef void (APIENTRYP PFNGLUNIFORM2DPROC)(GLint location, GLdouble x, GLdouble y);
+GLAPI PFNGLUNIFORM2DPROC glad_glUniform2d;
+#define glUniform2d glad_glUniform2d
+typedef void (APIENTRYP PFNGLUNIFORM3DPROC)(GLint location, GLdouble x, GLdouble y, GLdouble z);
+GLAPI PFNGLUNIFORM3DPROC glad_glUniform3d;
+#define glUniform3d glad_glUniform3d
+typedef void (APIENTRYP PFNGLUNIFORM4DPROC)(GLint location, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
+GLAPI PFNGLUNIFORM4DPROC glad_glUniform4d;
+#define glUniform4d glad_glUniform4d
+typedef void (APIENTRYP PFNGLUNIFORM1DVPROC)(GLint location, GLsizei count, const GLdouble *value);
+GLAPI PFNGLUNIFORM1DVPROC glad_glUniform1dv;
+#define glUniform1dv glad_glUniform1dv
+typedef void (APIENTRYP PFNGLUNIFORM2DVPROC)(GLint location, GLsizei count, const GLdouble *value);
+GLAPI PFNGLUNIFORM2DVPROC glad_glUniform2dv;
+#define glUniform2dv glad_glUniform2dv
+typedef void (APIENTRYP PFNGLUNIFORM3DVPROC)(GLint location, GLsizei count, const GLdouble *value);
+GLAPI PFNGLUNIFORM3DVPROC glad_glUniform3dv;
+#define glUniform3dv glad_glUniform3dv
+typedef void (APIENTRYP PFNGLUNIFORM4DVPROC)(GLint location, GLsizei count, const GLdouble *value);
+GLAPI PFNGLUNIFORM4DVPROC glad_glUniform4dv;
+#define glUniform4dv glad_glUniform4dv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX2DVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLUNIFORMMATRIX2DVPROC glad_glUniformMatrix2dv;
+#define glUniformMatrix2dv glad_glUniformMatrix2dv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX3DVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLUNIFORMMATRIX3DVPROC glad_glUniformMatrix3dv;
+#define glUniformMatrix3dv glad_glUniformMatrix3dv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX4DVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLUNIFORMMATRIX4DVPROC glad_glUniformMatrix4dv;
+#define glUniformMatrix4dv glad_glUniformMatrix4dv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX2X3DVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLUNIFORMMATRIX2X3DVPROC glad_glUniformMatrix2x3dv;
+#define glUniformMatrix2x3dv glad_glUniformMatrix2x3dv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX2X4DVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLUNIFORMMATRIX2X4DVPROC glad_glUniformMatrix2x4dv;
+#define glUniformMatrix2x4dv glad_glUniformMatrix2x4dv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX3X2DVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLUNIFORMMATRIX3X2DVPROC glad_glUniformMatrix3x2dv;
+#define glUniformMatrix3x2dv glad_glUniformMatrix3x2dv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX3X4DVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLUNIFORMMATRIX3X4DVPROC glad_glUniformMatrix3x4dv;
+#define glUniformMatrix3x4dv glad_glUniformMatrix3x4dv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX4X2DVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLUNIFORMMATRIX4X2DVPROC glad_glUniformMatrix4x2dv;
+#define glUniformMatrix4x2dv glad_glUniformMatrix4x2dv
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX4X3DVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLUNIFORMMATRIX4X3DVPROC glad_glUniformMatrix4x3dv;
+#define glUniformMatrix4x3dv glad_glUniformMatrix4x3dv
+typedef void (APIENTRYP PFNGLGETUNIFORMDVPROC)(GLuint program, GLint location, GLdouble *params);
+GLAPI PFNGLGETUNIFORMDVPROC glad_glGetUniformdv;
+#define glGetUniformdv glad_glGetUniformdv
+typedef GLint (APIENTRYP PFNGLGETSUBROUTINEUNIFORMLOCATIONPROC)(GLuint program, GLenum shadertype, const GLchar *name);
+GLAPI PFNGLGETSUBROUTINEUNIFORMLOCATIONPROC glad_glGetSubroutineUniformLocation;
+#define glGetSubroutineUniformLocation glad_glGetSubroutineUniformLocation
+typedef GLuint (APIENTRYP PFNGLGETSUBROUTINEINDEXPROC)(GLuint program, GLenum shadertype, const GLchar *name);
+GLAPI PFNGLGETSUBROUTINEINDEXPROC glad_glGetSubroutineIndex;
+#define glGetSubroutineIndex glad_glGetSubroutineIndex
+typedef void (APIENTRYP PFNGLGETACTIVESUBROUTINEUNIFORMIVPROC)(GLuint program, GLenum shadertype, GLuint index, GLenum pname, GLint *values);
+GLAPI PFNGLGETACTIVESUBROUTINEUNIFORMIVPROC glad_glGetActiveSubroutineUniformiv;
+#define glGetActiveSubroutineUniformiv glad_glGetActiveSubroutineUniformiv
+typedef void (APIENTRYP PFNGLGETACTIVESUBROUTINEUNIFORMNAMEPROC)(GLuint program, GLenum shadertype, GLuint index, GLsizei bufSize, GLsizei *length, GLchar *name);
+GLAPI PFNGLGETACTIVESUBROUTINEUNIFORMNAMEPROC glad_glGetActiveSubroutineUniformName;
+#define glGetActiveSubroutineUniformName glad_glGetActiveSubroutineUniformName
+typedef void (APIENTRYP PFNGLGETACTIVESUBROUTINENAMEPROC)(GLuint program, GLenum shadertype, GLuint index, GLsizei bufSize, GLsizei *length, GLchar *name);
+GLAPI PFNGLGETACTIVESUBROUTINENAMEPROC glad_glGetActiveSubroutineName;
+#define glGetActiveSubroutineName glad_glGetActiveSubroutineName
+typedef void (APIENTRYP PFNGLUNIFORMSUBROUTINESUIVPROC)(GLenum shadertype, GLsizei count, const GLuint *indices);
+GLAPI PFNGLUNIFORMSUBROUTINESUIVPROC glad_glUniformSubroutinesuiv;
+#define glUniformSubroutinesuiv glad_glUniformSubroutinesuiv
+typedef void (APIENTRYP PFNGLGETUNIFORMSUBROUTINEUIVPROC)(GLenum shadertype, GLint location, GLuint *params);
+GLAPI PFNGLGETUNIFORMSUBROUTINEUIVPROC glad_glGetUniformSubroutineuiv;
+#define glGetUniformSubroutineuiv glad_glGetUniformSubroutineuiv
+typedef void (APIENTRYP PFNGLGETPROGRAMSTAGEIVPROC)(GLuint program, GLenum shadertype, GLenum pname, GLint *values);
+GLAPI PFNGLGETPROGRAMSTAGEIVPROC glad_glGetProgramStageiv;
+#define glGetProgramStageiv glad_glGetProgramStageiv
+typedef void (APIENTRYP PFNGLPATCHPARAMETERIPROC)(GLenum pname, GLint value);
+GLAPI PFNGLPATCHPARAMETERIPROC glad_glPatchParameteri;
+#define glPatchParameteri glad_glPatchParameteri
+typedef void (APIENTRYP PFNGLPATCHPARAMETERFVPROC)(GLenum pname, const GLfloat *values);
+GLAPI PFNGLPATCHPARAMETERFVPROC glad_glPatchParameterfv;
+#define glPatchParameterfv glad_glPatchParameterfv
+typedef void (APIENTRYP PFNGLBINDTRANSFORMFEEDBACKPROC)(GLenum target, GLuint id);
+GLAPI PFNGLBINDTRANSFORMFEEDBACKPROC glad_glBindTransformFeedback;
+#define glBindTransformFeedback glad_glBindTransformFeedback
+typedef void (APIENTRYP PFNGLDELETETRANSFORMFEEDBACKSPROC)(GLsizei n, const GLuint *ids);
+GLAPI PFNGLDELETETRANSFORMFEEDBACKSPROC glad_glDeleteTransformFeedbacks;
+#define glDeleteTransformFeedbacks glad_glDeleteTransformFeedbacks
+typedef void (APIENTRYP PFNGLGENTRANSFORMFEEDBACKSPROC)(GLsizei n, GLuint *ids);
+GLAPI PFNGLGENTRANSFORMFEEDBACKSPROC glad_glGenTransformFeedbacks;
+#define glGenTransformFeedbacks glad_glGenTransformFeedbacks
+typedef GLboolean (APIENTRYP PFNGLISTRANSFORMFEEDBACKPROC)(GLuint id);
+GLAPI PFNGLISTRANSFORMFEEDBACKPROC glad_glIsTransformFeedback;
+#define glIsTransformFeedback glad_glIsTransformFeedback
+typedef void (APIENTRYP PFNGLPAUSETRANSFORMFEEDBACKPROC)(void);
+GLAPI PFNGLPAUSETRANSFORMFEEDBACKPROC glad_glPauseTransformFeedback;
+#define glPauseTransformFeedback glad_glPauseTransformFeedback
+typedef void (APIENTRYP PFNGLRESUMETRANSFORMFEEDBACKPROC)(void);
+GLAPI PFNGLRESUMETRANSFORMFEEDBACKPROC glad_glResumeTransformFeedback;
+#define glResumeTransformFeedback glad_glResumeTransformFeedback
+typedef void (APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKPROC)(GLenum mode, GLuint id);
+GLAPI PFNGLDRAWTRANSFORMFEEDBACKPROC glad_glDrawTransformFeedback;
+#define glDrawTransformFeedback glad_glDrawTransformFeedback
+typedef void (APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKSTREAMPROC)(GLenum mode, GLuint id, GLuint stream);
+GLAPI PFNGLDRAWTRANSFORMFEEDBACKSTREAMPROC glad_glDrawTransformFeedbackStream;
+#define glDrawTransformFeedbackStream glad_glDrawTransformFeedbackStream
+typedef void (APIENTRYP PFNGLBEGINQUERYINDEXEDPROC)(GLenum target, GLuint index, GLuint id);
+GLAPI PFNGLBEGINQUERYINDEXEDPROC glad_glBeginQueryIndexed;
+#define glBeginQueryIndexed glad_glBeginQueryIndexed
+typedef void (APIENTRYP PFNGLENDQUERYINDEXEDPROC)(GLenum target, GLuint index);
+GLAPI PFNGLENDQUERYINDEXEDPROC glad_glEndQueryIndexed;
+#define glEndQueryIndexed glad_glEndQueryIndexed
+typedef void (APIENTRYP PFNGLGETQUERYINDEXEDIVPROC)(GLenum target, GLuint index, GLenum pname, GLint *params);
+GLAPI PFNGLGETQUERYINDEXEDIVPROC glad_glGetQueryIndexediv;
+#define glGetQueryIndexediv glad_glGetQueryIndexediv
+#endif
+#ifndef GL_VERSION_4_1
+#define GL_VERSION_4_1 1
+GLAPI int GLAD_GL_VERSION_4_1;
+typedef void (APIENTRYP PFNGLRELEASESHADERCOMPILERPROC)(void);
+GLAPI PFNGLRELEASESHADERCOMPILERPROC glad_glReleaseShaderCompiler;
+#define glReleaseShaderCompiler glad_glReleaseShaderCompiler
+typedef void (APIENTRYP PFNGLSHADERBINARYPROC)(GLsizei count, const GLuint *shaders, GLenum binaryFormat, const void *binary, GLsizei length);
+GLAPI PFNGLSHADERBINARYPROC glad_glShaderBinary;
+#define glShaderBinary glad_glShaderBinary
+typedef void (APIENTRYP PFNGLGETSHADERPRECISIONFORMATPROC)(GLenum shadertype, GLenum precisiontype, GLint *range, GLint *precision);
+GLAPI PFNGLGETSHADERPRECISIONFORMATPROC glad_glGetShaderPrecisionFormat;
+#define glGetShaderPrecisionFormat glad_glGetShaderPrecisionFormat
+typedef void (APIENTRYP PFNGLDEPTHRANGEFPROC)(GLfloat n, GLfloat f);
+GLAPI PFNGLDEPTHRANGEFPROC glad_glDepthRangef;
+#define glDepthRangef glad_glDepthRangef
+typedef void (APIENTRYP PFNGLCLEARDEPTHFPROC)(GLfloat d);
+GLAPI PFNGLCLEARDEPTHFPROC glad_glClearDepthf;
+#define glClearDepthf glad_glClearDepthf
+typedef void (APIENTRYP PFNGLGETPROGRAMBINARYPROC)(GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, void *binary);
+GLAPI PFNGLGETPROGRAMBINARYPROC glad_glGetProgramBinary;
+#define glGetProgramBinary glad_glGetProgramBinary
+typedef void (APIENTRYP PFNGLPROGRAMBINARYPROC)(GLuint program, GLenum binaryFormat, const void *binary, GLsizei length);
+GLAPI PFNGLPROGRAMBINARYPROC glad_glProgramBinary;
+#define glProgramBinary glad_glProgramBinary
+typedef void (APIENTRYP PFNGLPROGRAMPARAMETERIPROC)(GLuint program, GLenum pname, GLint value);
+GLAPI PFNGLPROGRAMPARAMETERIPROC glad_glProgramParameteri;
+#define glProgramParameteri glad_glProgramParameteri
+typedef void (APIENTRYP PFNGLUSEPROGRAMSTAGESPROC)(GLuint pipeline, GLbitfield stages, GLuint program);
+GLAPI PFNGLUSEPROGRAMSTAGESPROC glad_glUseProgramStages;
+#define glUseProgramStages glad_glUseProgramStages
+typedef void (APIENTRYP PFNGLACTIVESHADERPROGRAMPROC)(GLuint pipeline, GLuint program);
+GLAPI PFNGLACTIVESHADERPROGRAMPROC glad_glActiveShaderProgram;
+#define glActiveShaderProgram glad_glActiveShaderProgram
+typedef GLuint (APIENTRYP PFNGLCREATESHADERPROGRAMVPROC)(GLenum type, GLsizei count, const GLchar *const*strings);
+GLAPI PFNGLCREATESHADERPROGRAMVPROC glad_glCreateShaderProgramv;
+#define glCreateShaderProgramv glad_glCreateShaderProgramv
+typedef void (APIENTRYP PFNGLBINDPROGRAMPIPELINEPROC)(GLuint pipeline);
+GLAPI PFNGLBINDPROGRAMPIPELINEPROC glad_glBindProgramPipeline;
+#define glBindProgramPipeline glad_glBindProgramPipeline
+typedef void (APIENTRYP PFNGLDELETEPROGRAMPIPELINESPROC)(GLsizei n, const GLuint *pipelines);
+GLAPI PFNGLDELETEPROGRAMPIPELINESPROC glad_glDeleteProgramPipelines;
+#define glDeleteProgramPipelines glad_glDeleteProgramPipelines
+typedef void (APIENTRYP PFNGLGENPROGRAMPIPELINESPROC)(GLsizei n, GLuint *pipelines);
+GLAPI PFNGLGENPROGRAMPIPELINESPROC glad_glGenProgramPipelines;
+#define glGenProgramPipelines glad_glGenProgramPipelines
+typedef GLboolean (APIENTRYP PFNGLISPROGRAMPIPELINEPROC)(GLuint pipeline);
+GLAPI PFNGLISPROGRAMPIPELINEPROC glad_glIsProgramPipeline;
+#define glIsProgramPipeline glad_glIsProgramPipeline
+typedef void (APIENTRYP PFNGLGETPROGRAMPIPELINEIVPROC)(GLuint pipeline, GLenum pname, GLint *params);
+GLAPI PFNGLGETPROGRAMPIPELINEIVPROC glad_glGetProgramPipelineiv;
+#define glGetProgramPipelineiv glad_glGetProgramPipelineiv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1IPROC)(GLuint program, GLint location, GLint v0);
+GLAPI PFNGLPROGRAMUNIFORM1IPROC glad_glProgramUniform1i;
+#define glProgramUniform1i glad_glProgramUniform1i
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1IVPROC)(GLuint program, GLint location, GLsizei count, const GLint *value);
+GLAPI PFNGLPROGRAMUNIFORM1IVPROC glad_glProgramUniform1iv;
+#define glProgramUniform1iv glad_glProgramUniform1iv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1FPROC)(GLuint program, GLint location, GLfloat v0);
+GLAPI PFNGLPROGRAMUNIFORM1FPROC glad_glProgramUniform1f;
+#define glProgramUniform1f glad_glProgramUniform1f
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1FVPROC)(GLuint program, GLint location, GLsizei count, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORM1FVPROC glad_glProgramUniform1fv;
+#define glProgramUniform1fv glad_glProgramUniform1fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1DPROC)(GLuint program, GLint location, GLdouble v0);
+GLAPI PFNGLPROGRAMUNIFORM1DPROC glad_glProgramUniform1d;
+#define glProgramUniform1d glad_glProgramUniform1d
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1DVPROC)(GLuint program, GLint location, GLsizei count, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORM1DVPROC glad_glProgramUniform1dv;
+#define glProgramUniform1dv glad_glProgramUniform1dv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UIPROC)(GLuint program, GLint location, GLuint v0);
+GLAPI PFNGLPROGRAMUNIFORM1UIPROC glad_glProgramUniform1ui;
+#define glProgramUniform1ui glad_glProgramUniform1ui
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UIVPROC)(GLuint program, GLint location, GLsizei count, const GLuint *value);
+GLAPI PFNGLPROGRAMUNIFORM1UIVPROC glad_glProgramUniform1uiv;
+#define glProgramUniform1uiv glad_glProgramUniform1uiv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2IPROC)(GLuint program, GLint location, GLint v0, GLint v1);
+GLAPI PFNGLPROGRAMUNIFORM2IPROC glad_glProgramUniform2i;
+#define glProgramUniform2i glad_glProgramUniform2i
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2IVPROC)(GLuint program, GLint location, GLsizei count, const GLint *value);
+GLAPI PFNGLPROGRAMUNIFORM2IVPROC glad_glProgramUniform2iv;
+#define glProgramUniform2iv glad_glProgramUniform2iv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2FPROC)(GLuint program, GLint location, GLfloat v0, GLfloat v1);
+GLAPI PFNGLPROGRAMUNIFORM2FPROC glad_glProgramUniform2f;
+#define glProgramUniform2f glad_glProgramUniform2f
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2FVPROC)(GLuint program, GLint location, GLsizei count, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORM2FVPROC glad_glProgramUniform2fv;
+#define glProgramUniform2fv glad_glProgramUniform2fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2DPROC)(GLuint program, GLint location, GLdouble v0, GLdouble v1);
+GLAPI PFNGLPROGRAMUNIFORM2DPROC glad_glProgramUniform2d;
+#define glProgramUniform2d glad_glProgramUniform2d
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2DVPROC)(GLuint program, GLint location, GLsizei count, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORM2DVPROC glad_glProgramUniform2dv;
+#define glProgramUniform2dv glad_glProgramUniform2dv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UIPROC)(GLuint program, GLint location, GLuint v0, GLuint v1);
+GLAPI PFNGLPROGRAMUNIFORM2UIPROC glad_glProgramUniform2ui;
+#define glProgramUniform2ui glad_glProgramUniform2ui
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UIVPROC)(GLuint program, GLint location, GLsizei count, const GLuint *value);
+GLAPI PFNGLPROGRAMUNIFORM2UIVPROC glad_glProgramUniform2uiv;
+#define glProgramUniform2uiv glad_glProgramUniform2uiv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3IPROC)(GLuint program, GLint location, GLint v0, GLint v1, GLint v2);
+GLAPI PFNGLPROGRAMUNIFORM3IPROC glad_glProgramUniform3i;
+#define glProgramUniform3i glad_glProgramUniform3i
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3IVPROC)(GLuint program, GLint location, GLsizei count, const GLint *value);
+GLAPI PFNGLPROGRAMUNIFORM3IVPROC glad_glProgramUniform3iv;
+#define glProgramUniform3iv glad_glProgramUniform3iv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3FPROC)(GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
+GLAPI PFNGLPROGRAMUNIFORM3FPROC glad_glProgramUniform3f;
+#define glProgramUniform3f glad_glProgramUniform3f
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3FVPROC)(GLuint program, GLint location, GLsizei count, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORM3FVPROC glad_glProgramUniform3fv;
+#define glProgramUniform3fv glad_glProgramUniform3fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3DPROC)(GLuint program, GLint location, GLdouble v0, GLdouble v1, GLdouble v2);
+GLAPI PFNGLPROGRAMUNIFORM3DPROC glad_glProgramUniform3d;
+#define glProgramUniform3d glad_glProgramUniform3d
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3DVPROC)(GLuint program, GLint location, GLsizei count, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORM3DVPROC glad_glProgramUniform3dv;
+#define glProgramUniform3dv glad_glProgramUniform3dv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UIPROC)(GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2);
+GLAPI PFNGLPROGRAMUNIFORM3UIPROC glad_glProgramUniform3ui;
+#define glProgramUniform3ui glad_glProgramUniform3ui
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UIVPROC)(GLuint program, GLint location, GLsizei count, const GLuint *value);
+GLAPI PFNGLPROGRAMUNIFORM3UIVPROC glad_glProgramUniform3uiv;
+#define glProgramUniform3uiv glad_glProgramUniform3uiv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4IPROC)(GLuint program, GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
+GLAPI PFNGLPROGRAMUNIFORM4IPROC glad_glProgramUniform4i;
+#define glProgramUniform4i glad_glProgramUniform4i
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4IVPROC)(GLuint program, GLint location, GLsizei count, const GLint *value);
+GLAPI PFNGLPROGRAMUNIFORM4IVPROC glad_glProgramUniform4iv;
+#define glProgramUniform4iv glad_glProgramUniform4iv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4FPROC)(GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
+GLAPI PFNGLPROGRAMUNIFORM4FPROC glad_glProgramUniform4f;
+#define glProgramUniform4f glad_glProgramUniform4f
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4FVPROC)(GLuint program, GLint location, GLsizei count, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORM4FVPROC glad_glProgramUniform4fv;
+#define glProgramUniform4fv glad_glProgramUniform4fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4DPROC)(GLuint program, GLint location, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
+GLAPI PFNGLPROGRAMUNIFORM4DPROC glad_glProgramUniform4d;
+#define glProgramUniform4d glad_glProgramUniform4d
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4DVPROC)(GLuint program, GLint location, GLsizei count, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORM4DVPROC glad_glProgramUniform4dv;
+#define glProgramUniform4dv glad_glProgramUniform4dv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UIPROC)(GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3);
+GLAPI PFNGLPROGRAMUNIFORM4UIPROC glad_glProgramUniform4ui;
+#define glProgramUniform4ui glad_glProgramUniform4ui
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UIVPROC)(GLuint program, GLint location, GLsizei count, const GLuint *value);
+GLAPI PFNGLPROGRAMUNIFORM4UIVPROC glad_glProgramUniform4uiv;
+#define glProgramUniform4uiv glad_glProgramUniform4uiv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2FVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX2FVPROC glad_glProgramUniformMatrix2fv;
+#define glProgramUniformMatrix2fv glad_glProgramUniformMatrix2fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3FVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX3FVPROC glad_glProgramUniformMatrix3fv;
+#define glProgramUniformMatrix3fv glad_glProgramUniformMatrix3fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4FVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX4FVPROC glad_glProgramUniformMatrix4fv;
+#define glProgramUniformMatrix4fv glad_glProgramUniformMatrix4fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2DVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX2DVPROC glad_glProgramUniformMatrix2dv;
+#define glProgramUniformMatrix2dv glad_glProgramUniformMatrix2dv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3DVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX3DVPROC glad_glProgramUniformMatrix3dv;
+#define glProgramUniformMatrix3dv glad_glProgramUniformMatrix3dv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4DVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX4DVPROC glad_glProgramUniformMatrix4dv;
+#define glProgramUniformMatrix4dv glad_glProgramUniformMatrix4dv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X3FVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX2X3FVPROC glad_glProgramUniformMatrix2x3fv;
+#define glProgramUniformMatrix2x3fv glad_glProgramUniformMatrix2x3fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X2FVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX3X2FVPROC glad_glProgramUniformMatrix3x2fv;
+#define glProgramUniformMatrix3x2fv glad_glProgramUniformMatrix3x2fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X4FVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX2X4FVPROC glad_glProgramUniformMatrix2x4fv;
+#define glProgramUniformMatrix2x4fv glad_glProgramUniformMatrix2x4fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X2FVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX4X2FVPROC glad_glProgramUniformMatrix4x2fv;
+#define glProgramUniformMatrix4x2fv glad_glProgramUniformMatrix4x2fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X4FVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX3X4FVPROC glad_glProgramUniformMatrix3x4fv;
+#define glProgramUniformMatrix3x4fv glad_glProgramUniformMatrix3x4fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X3FVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX4X3FVPROC glad_glProgramUniformMatrix4x3fv;
+#define glProgramUniformMatrix4x3fv glad_glProgramUniformMatrix4x3fv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X3DVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX2X3DVPROC glad_glProgramUniformMatrix2x3dv;
+#define glProgramUniformMatrix2x3dv glad_glProgramUniformMatrix2x3dv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X2DVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX3X2DVPROC glad_glProgramUniformMatrix3x2dv;
+#define glProgramUniformMatrix3x2dv glad_glProgramUniformMatrix3x2dv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X4DVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX2X4DVPROC glad_glProgramUniformMatrix2x4dv;
+#define glProgramUniformMatrix2x4dv glad_glProgramUniformMatrix2x4dv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X2DVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX4X2DVPROC glad_glProgramUniformMatrix4x2dv;
+#define glProgramUniformMatrix4x2dv glad_glProgramUniformMatrix4x2dv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X4DVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX3X4DVPROC glad_glProgramUniformMatrix3x4dv;
+#define glProgramUniformMatrix3x4dv glad_glProgramUniformMatrix3x4dv
+typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X3DVPROC)(GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value);
+GLAPI PFNGLPROGRAMUNIFORMMATRIX4X3DVPROC glad_glProgramUniformMatrix4x3dv;
+#define glProgramUniformMatrix4x3dv glad_glProgramUniformMatrix4x3dv
+typedef void (APIENTRYP PFNGLVALIDATEPROGRAMPIPELINEPROC)(GLuint pipeline);
+GLAPI PFNGLVALIDATEPROGRAMPIPELINEPROC glad_glValidateProgramPipeline;
+#define glValidateProgramPipeline glad_glValidateProgramPipeline
+typedef void (APIENTRYP PFNGLGETPROGRAMPIPELINEINFOLOGPROC)(GLuint pipeline, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
+GLAPI PFNGLGETPROGRAMPIPELINEINFOLOGPROC glad_glGetProgramPipelineInfoLog;
+#define glGetProgramPipelineInfoLog glad_glGetProgramPipelineInfoLog
+typedef void (APIENTRYP PFNGLVERTEXATTRIBL1DPROC)(GLuint index, GLdouble x);
+GLAPI PFNGLVERTEXATTRIBL1DPROC glad_glVertexAttribL1d;
+#define glVertexAttribL1d glad_glVertexAttribL1d
+typedef void (APIENTRYP PFNGLVERTEXATTRIBL2DPROC)(GLuint index, GLdouble x, GLdouble y);
+GLAPI PFNGLVERTEXATTRIBL2DPROC glad_glVertexAttribL2d;
+#define glVertexAttribL2d glad_glVertexAttribL2d
+typedef void (APIENTRYP PFNGLVERTEXATTRIBL3DPROC)(GLuint index, GLdouble x, GLdouble y, GLdouble z);
+GLAPI PFNGLVERTEXATTRIBL3DPROC glad_glVertexAttribL3d;
+#define glVertexAttribL3d glad_glVertexAttribL3d
+typedef void (APIENTRYP PFNGLVERTEXATTRIBL4DPROC)(GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
+GLAPI PFNGLVERTEXATTRIBL4DPROC glad_glVertexAttribL4d;
+#define glVertexAttribL4d glad_glVertexAttribL4d
+typedef void (APIENTRYP PFNGLVERTEXATTRIBL1DVPROC)(GLuint index, const GLdouble *v);
+GLAPI PFNGLVERTEXATTRIBL1DVPROC glad_glVertexAttribL1dv;
+#define glVertexAttribL1dv glad_glVertexAttribL1dv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBL2DVPROC)(GLuint index, const GLdouble *v);
+GLAPI PFNGLVERTEXATTRIBL2DVPROC glad_glVertexAttribL2dv;
+#define glVertexAttribL2dv glad_glVertexAttribL2dv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBL3DVPROC)(GLuint index, const GLdouble *v);
+GLAPI PFNGLVERTEXATTRIBL3DVPROC glad_glVertexAttribL3dv;
+#define glVertexAttribL3dv glad_glVertexAttribL3dv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBL4DVPROC)(GLuint index, const GLdouble *v);
+GLAPI PFNGLVERTEXATTRIBL4DVPROC glad_glVertexAttribL4dv;
+#define glVertexAttribL4dv glad_glVertexAttribL4dv
+typedef void (APIENTRYP PFNGLVERTEXATTRIBLPOINTERPROC)(GLuint index, GLint size, GLenum type, GLsizei stride, const void *pointer);
+GLAPI PFNGLVERTEXATTRIBLPOINTERPROC glad_glVertexAttribLPointer;
+#define glVertexAttribLPointer glad_glVertexAttribLPointer
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBLDVPROC)(GLuint index, GLenum pname, GLdouble *params);
+GLAPI PFNGLGETVERTEXATTRIBLDVPROC glad_glGetVertexAttribLdv;
+#define glGetVertexAttribLdv glad_glGetVertexAttribLdv
+typedef void (APIENTRYP PFNGLVIEWPORTARRAYVPROC)(GLuint first, GLsizei count, const GLfloat *v);
+GLAPI PFNGLVIEWPORTARRAYVPROC glad_glViewportArrayv;
+#define glViewportArrayv glad_glViewportArrayv
+typedef void (APIENTRYP PFNGLVIEWPORTINDEXEDFPROC)(GLuint index, GLfloat x, GLfloat y, GLfloat w, GLfloat h);
+GLAPI PFNGLVIEWPORTINDEXEDFPROC glad_glViewportIndexedf;
+#define glViewportIndexedf glad_glViewportIndexedf
+typedef void (APIENTRYP PFNGLVIEWPORTINDEXEDFVPROC)(GLuint index, const GLfloat *v);
+GLAPI PFNGLVIEWPORTINDEXEDFVPROC glad_glViewportIndexedfv;
+#define glViewportIndexedfv glad_glViewportIndexedfv
+typedef void (APIENTRYP PFNGLSCISSORARRAYVPROC)(GLuint first, GLsizei count, const GLint *v);
+GLAPI PFNGLSCISSORARRAYVPROC glad_glScissorArrayv;
+#define glScissorArrayv glad_glScissorArrayv
+typedef void (APIENTRYP PFNGLSCISSORINDEXEDPROC)(GLuint index, GLint left, GLint bottom, GLsizei width, GLsizei height);
+GLAPI PFNGLSCISSORINDEXEDPROC glad_glScissorIndexed;
+#define glScissorIndexed glad_glScissorIndexed
+typedef void (APIENTRYP PFNGLSCISSORINDEXEDVPROC)(GLuint index, const GLint *v);
+GLAPI PFNGLSCISSORINDEXEDVPROC glad_glScissorIndexedv;
+#define glScissorIndexedv glad_glScissorIndexedv
+typedef void (APIENTRYP PFNGLDEPTHRANGEARRAYVPROC)(GLuint first, GLsizei count, const GLdouble *v);
+GLAPI PFNGLDEPTHRANGEARRAYVPROC glad_glDepthRangeArrayv;
+#define glDepthRangeArrayv glad_glDepthRangeArrayv
+typedef void (APIENTRYP PFNGLDEPTHRANGEINDEXEDPROC)(GLuint index, GLdouble n, GLdouble f);
+GLAPI PFNGLDEPTHRANGEINDEXEDPROC glad_glDepthRangeIndexed;
+#define glDepthRangeIndexed glad_glDepthRangeIndexed
+typedef void (APIENTRYP PFNGLGETFLOATI_VPROC)(GLenum target, GLuint index, GLfloat *data);
+GLAPI PFNGLGETFLOATI_VPROC glad_glGetFloati_v;
+#define glGetFloati_v glad_glGetFloati_v
+typedef void (APIENTRYP PFNGLGETDOUBLEI_VPROC)(GLenum target, GLuint index, GLdouble *data);
+GLAPI PFNGLGETDOUBLEI_VPROC glad_glGetDoublei_v;
+#define glGetDoublei_v glad_glGetDoublei_v
+#endif
+#ifndef GL_VERSION_4_2
+#define GL_VERSION_4_2 1
+GLAPI int GLAD_GL_VERSION_4_2;
+typedef void (APIENTRYP PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEPROC)(GLenum mode, GLint first, GLsizei count, GLsizei instancecount, GLuint baseinstance);
+GLAPI PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEPROC glad_glDrawArraysInstancedBaseInstance;
+#define glDrawArraysInstancedBaseInstance glad_glDrawArraysInstancedBaseInstance
+typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEINSTANCEPROC)(GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLuint baseinstance);
+GLAPI PFNGLDRAWELEMENTSINSTANCEDBASEINSTANCEPROC glad_glDrawElementsInstancedBaseInstance;
+#define glDrawElementsInstancedBaseInstance glad_glDrawElementsInstancedBaseInstance
+typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC)(GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex, GLuint baseinstance);
+GLAPI PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC glad_glDrawElementsInstancedBaseVertexBaseInstance;
+#define glDrawElementsInstancedBaseVertexBaseInstance glad_glDrawElementsInstancedBaseVertexBaseInstance
+typedef void (APIENTRYP PFNGLGETINTERNALFORMATIVPROC)(GLenum target, GLenum internalformat, GLenum pname, GLsizei count, GLint *params);
+GLAPI PFNGLGETINTERNALFORMATIVPROC glad_glGetInternalformativ;
+#define glGetInternalformativ glad_glGetInternalformativ
+typedef void (APIENTRYP PFNGLGETACTIVEATOMICCOUNTERBUFFERIVPROC)(GLuint program, GLuint bufferIndex, GLenum pname, GLint *params);
+GLAPI PFNGLGETACTIVEATOMICCOUNTERBUFFERIVPROC glad_glGetActiveAtomicCounterBufferiv;
+#define glGetActiveAtomicCounterBufferiv glad_glGetActiveAtomicCounterBufferiv
+typedef void (APIENTRYP PFNGLBINDIMAGETEXTUREPROC)(GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access, GLenum format);
+GLAPI PFNGLBINDIMAGETEXTUREPROC glad_glBindImageTexture;
+#define glBindImageTexture glad_glBindImageTexture
+typedef void (APIENTRYP PFNGLMEMORYBARRIERPROC)(GLbitfield barriers);
+GLAPI PFNGLMEMORYBARRIERPROC glad_glMemoryBarrier;
+#define glMemoryBarrier glad_glMemoryBarrier
+typedef void (APIENTRYP PFNGLTEXSTORAGE1DPROC)(GLenum target, GLsizei levels, GLenum internalformat, GLsizei width);
+GLAPI PFNGLTEXSTORAGE1DPROC glad_glTexStorage1D;
+#define glTexStorage1D glad_glTexStorage1D
+typedef void (APIENTRYP PFNGLTEXSTORAGE2DPROC)(GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height);
+GLAPI PFNGLTEXSTORAGE2DPROC glad_glTexStorage2D;
+#define glTexStorage2D glad_glTexStorage2D
+typedef void (APIENTRYP PFNGLTEXSTORAGE3DPROC)(GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth);
+GLAPI PFNGLTEXSTORAGE3DPROC glad_glTexStorage3D;
+#define glTexStorage3D glad_glTexStorage3D
+typedef void (APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKINSTANCEDPROC)(GLenum mode, GLuint id, GLsizei instancecount);
+GLAPI PFNGLDRAWTRANSFORMFEEDBACKINSTANCEDPROC glad_glDrawTransformFeedbackInstanced;
+#define glDrawTransformFeedbackInstanced glad_glDrawTransformFeedbackInstanced
+typedef void (APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKSTREAMINSTANCEDPROC)(GLenum mode, GLuint id, GLuint stream, GLsizei instancecount);
+GLAPI PFNGLDRAWTRANSFORMFEEDBACKSTREAMINSTANCEDPROC glad_glDrawTransformFeedbackStreamInstanced;
+#define glDrawTransformFeedbackStreamInstanced glad_glDrawTransformFeedbackStreamInstanced
+#endif
+#ifndef GL_VERSION_4_3
+#define GL_VERSION_4_3 1
+GLAPI int GLAD_GL_VERSION_4_3;
+typedef void (APIENTRYP PFNGLCLEARBUFFERDATAPROC)(GLenum target, GLenum internalformat, GLenum format, GLenum type, const void *data);
+GLAPI PFNGLCLEARBUFFERDATAPROC glad_glClearBufferData;
+#define glClearBufferData glad_glClearBufferData
+typedef void (APIENTRYP PFNGLCLEARBUFFERSUBDATAPROC)(GLenum target, GLenum internalformat, GLintptr offset, GLsizeiptr size, GLenum format, GLenum type, const void *data);
+GLAPI PFNGLCLEARBUFFERSUBDATAPROC glad_glClearBufferSubData;
+#define glClearBufferSubData glad_glClearBufferSubData
+typedef void (APIENTRYP PFNGLDISPATCHCOMPUTEPROC)(GLuint num_groups_x, GLuint num_groups_y, GLuint num_groups_z);
+GLAPI PFNGLDISPATCHCOMPUTEPROC glad_glDispatchCompute;
+#define glDispatchCompute glad_glDispatchCompute
+typedef void (APIENTRYP PFNGLDISPATCHCOMPUTEINDIRECTPROC)(GLintptr indirect);
+GLAPI PFNGLDISPATCHCOMPUTEINDIRECTPROC glad_glDispatchComputeIndirect;
+#define glDispatchComputeIndirect glad_glDispatchComputeIndirect
+typedef void (APIENTRYP PFNGLCOPYIMAGESUBDATAPROC)(GLuint srcName, GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ, GLuint dstName, GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ, GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth);
+GLAPI PFNGLCOPYIMAGESUBDATAPROC glad_glCopyImageSubData;
+#define glCopyImageSubData glad_glCopyImageSubData
+typedef void (APIENTRYP PFNGLFRAMEBUFFERPARAMETERIPROC)(GLenum target, GLenum pname, GLint param);
+GLAPI PFNGLFRAMEBUFFERPARAMETERIPROC glad_glFramebufferParameteri;
+#define glFramebufferParameteri glad_glFramebufferParameteri
+typedef void (APIENTRYP PFNGLGETFRAMEBUFFERPARAMETERIVPROC)(GLenum target, GLenum pname, GLint *params);
+GLAPI PFNGLGETFRAMEBUFFERPARAMETERIVPROC glad_glGetFramebufferParameteriv;
+#define glGetFramebufferParameteriv glad_glGetFramebufferParameteriv
+typedef void (APIENTRYP PFNGLGETINTERNALFORMATI64VPROC)(GLenum target, GLenum internalformat, GLenum pname, GLsizei count, GLint64 *params);
+GLAPI PFNGLGETINTERNALFORMATI64VPROC glad_glGetInternalformati64v;
+#define glGetInternalformati64v glad_glGetInternalformati64v
+typedef void (APIENTRYP PFNGLINVALIDATETEXSUBIMAGEPROC)(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth);
+GLAPI PFNGLINVALIDATETEXSUBIMAGEPROC glad_glInvalidateTexSubImage;
+#define glInvalidateTexSubImage glad_glInvalidateTexSubImage
+typedef void (APIENTRYP PFNGLINVALIDATETEXIMAGEPROC)(GLuint texture, GLint level);
+GLAPI PFNGLINVALIDATETEXIMAGEPROC glad_glInvalidateTexImage;
+#define glInvalidateTexImage glad_glInvalidateTexImage
+typedef void (APIENTRYP PFNGLINVALIDATEBUFFERSUBDATAPROC)(GLuint buffer, GLintptr offset, GLsizeiptr length);
+GLAPI PFNGLINVALIDATEBUFFERSUBDATAPROC glad_glInvalidateBufferSubData;
+#define glInvalidateBufferSubData glad_glInvalidateBufferSubData
+typedef void (APIENTRYP PFNGLINVALIDATEBUFFERDATAPROC)(GLuint buffer);
+GLAPI PFNGLINVALIDATEBUFFERDATAPROC glad_glInvalidateBufferData;
+#define glInvalidateBufferData glad_glInvalidateBufferData
+typedef void (APIENTRYP PFNGLINVALIDATEFRAMEBUFFERPROC)(GLenum target, GLsizei numAttachments, const GLenum *attachments);
+GLAPI PFNGLINVALIDATEFRAMEBUFFERPROC glad_glInvalidateFramebuffer;
+#define glInvalidateFramebuffer glad_glInvalidateFramebuffer
+typedef void (APIENTRYP PFNGLINVALIDATESUBFRAMEBUFFERPROC)(GLenum target, GLsizei numAttachments, const GLenum *attachments, GLint x, GLint y, GLsizei width, GLsizei height);
+GLAPI PFNGLINVALIDATESUBFRAMEBUFFERPROC glad_glInvalidateSubFramebuffer;
+#define glInvalidateSubFramebuffer glad_glInvalidateSubFramebuffer
+typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTPROC)(GLenum mode, const void *indirect, GLsizei drawcount, GLsizei stride);
+GLAPI PFNGLMULTIDRAWARRAYSINDIRECTPROC glad_glMultiDrawArraysIndirect;
+#define glMultiDrawArraysIndirect glad_glMultiDrawArraysIndirect
+typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTPROC)(GLenum mode, GLenum type, const void *indirect, GLsizei drawcount, GLsizei stride);
+GLAPI PFNGLMULTIDRAWELEMENTSINDIRECTPROC glad_glMultiDrawElementsIndirect;
+#define glMultiDrawElementsIndirect glad_glMultiDrawElementsIndirect
+typedef void (APIENTRYP PFNGLGETPROGRAMINTERFACEIVPROC)(GLuint program, GLenum programInterface, GLenum pname, GLint *params);
+GLAPI PFNGLGETPROGRAMINTERFACEIVPROC glad_glGetProgramInterfaceiv;
+#define glGetProgramInterfaceiv glad_glGetProgramInterfaceiv
+typedef GLuint (APIENTRYP PFNGLGETPROGRAMRESOURCEINDEXPROC)(GLuint program, GLenum programInterface, const GLchar *name);
+GLAPI PFNGLGETPROGRAMRESOURCEINDEXPROC glad_glGetProgramResourceIndex;
+#define glGetProgramResourceIndex glad_glGetProgramResourceIndex
+typedef void (APIENTRYP PFNGLGETPROGRAMRESOURCENAMEPROC)(GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize, GLsizei *length, GLchar *name);
+GLAPI PFNGLGETPROGRAMRESOURCENAMEPROC glad_glGetProgramResourceName;
+#define glGetProgramResourceName glad_glGetProgramResourceName
+typedef void (APIENTRYP PFNGLGETPROGRAMRESOURCEIVPROC)(GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum *props, GLsizei count, GLsizei *length, GLint *params);
+GLAPI PFNGLGETPROGRAMRESOURCEIVPROC glad_glGetProgramResourceiv;
+#define glGetProgramResourceiv glad_glGetProgramResourceiv
+typedef GLint (APIENTRYP PFNGLGETPROGRAMRESOURCELOCATIONPROC)(GLuint program, GLenum programInterface, const GLchar *name);
+GLAPI PFNGLGETPROGRAMRESOURCELOCATIONPROC glad_glGetProgramResourceLocation;
+#define glGetProgramResourceLocation glad_glGetProgramResourceLocation
+typedef GLint (APIENTRYP PFNGLGETPROGRAMRESOURCELOCATIONINDEXPROC)(GLuint program, GLenum programInterface, const GLchar *name);
+GLAPI PFNGLGETPROGRAMRESOURCELOCATIONINDEXPROC glad_glGetProgramResourceLocationIndex;
+#define glGetProgramResourceLocationIndex glad_glGetProgramResourceLocationIndex
+typedef void (APIENTRYP PFNGLSHADERSTORAGEBLOCKBINDINGPROC)(GLuint program, GLuint storageBlockIndex, GLuint storageBlockBinding);
+GLAPI PFNGLSHADERSTORAGEBLOCKBINDINGPROC glad_glShaderStorageBlockBinding;
+#define glShaderStorageBlockBinding glad_glShaderStorageBlockBinding
+typedef void (APIENTRYP PFNGLTEXBUFFERRANGEPROC)(GLenum target, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size);
+GLAPI PFNGLTEXBUFFERRANGEPROC glad_glTexBufferRange;
+#define glTexBufferRange glad_glTexBufferRange
+typedef void (APIENTRYP PFNGLTEXSTORAGE2DMULTISAMPLEPROC)(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations);
+GLAPI PFNGLTEXSTORAGE2DMULTISAMPLEPROC glad_glTexStorage2DMultisample;
+#define glTexStorage2DMultisample glad_glTexStorage2DMultisample
+typedef void (APIENTRYP PFNGLTEXSTORAGE3DMULTISAMPLEPROC)(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations);
+GLAPI PFNGLTEXSTORAGE3DMULTISAMPLEPROC glad_glTexStorage3DMultisample;
+#define glTexStorage3DMultisample glad_glTexStorage3DMultisample
+typedef void (APIENTRYP PFNGLTEXTUREVIEWPROC)(GLuint texture, GLenum target, GLuint origtexture, GLenum internalformat, GLuint minlevel, GLuint numlevels, GLuint minlayer, GLuint numlayers);
+GLAPI PFNGLTEXTUREVIEWPROC glad_glTextureView;
+#define glTextureView glad_glTextureView
+typedef void (APIENTRYP PFNGLBINDVERTEXBUFFERPROC)(GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride);
+GLAPI PFNGLBINDVERTEXBUFFERPROC glad_glBindVertexBuffer;
+#define glBindVertexBuffer glad_glBindVertexBuffer
+typedef void (APIENTRYP PFNGLVERTEXATTRIBFORMATPROC)(GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset);
+GLAPI PFNGLVERTEXATTRIBFORMATPROC glad_glVertexAttribFormat;
+#define glVertexAttribFormat glad_glVertexAttribFormat
+typedef void (APIENTRYP PFNGLVERTEXATTRIBIFORMATPROC)(GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
+GLAPI PFNGLVERTEXATTRIBIFORMATPROC glad_glVertexAttribIFormat;
+#define glVertexAttribIFormat glad_glVertexAttribIFormat
+typedef void (APIENTRYP PFNGLVERTEXATTRIBLFORMATPROC)(GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
+GLAPI PFNGLVERTEXATTRIBLFORMATPROC glad_glVertexAttribLFormat;
+#define glVertexAttribLFormat glad_glVertexAttribLFormat
+typedef void (APIENTRYP PFNGLVERTEXATTRIBBINDINGPROC)(GLuint attribindex, GLuint bindingindex);
+GLAPI PFNGLVERTEXATTRIBBINDINGPROC glad_glVertexAttribBinding;
+#define glVertexAttribBinding glad_glVertexAttribBinding
+typedef void (APIENTRYP PFNGLVERTEXBINDINGDIVISORPROC)(GLuint bindingindex, GLuint divisor);
+GLAPI PFNGLVERTEXBINDINGDIVISORPROC glad_glVertexBindingDivisor;
+#define glVertexBindingDivisor glad_glVertexBindingDivisor
+typedef void (APIENTRYP PFNGLDEBUGMESSAGECONTROLPROC)(GLenum source, GLenum type, GLenum severity, GLsizei count, const GLuint *ids, GLboolean enabled);
+GLAPI PFNGLDEBUGMESSAGECONTROLPROC glad_glDebugMessageControl;
+#define glDebugMessageControl glad_glDebugMessageControl
+typedef void (APIENTRYP PFNGLDEBUGMESSAGEINSERTPROC)(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *buf);
+GLAPI PFNGLDEBUGMESSAGEINSERTPROC glad_glDebugMessageInsert;
+#define glDebugMessageInsert glad_glDebugMessageInsert
+typedef void (APIENTRYP PFNGLDEBUGMESSAGECALLBACKPROC)(GLDEBUGPROC callback, const void *userParam);
+GLAPI PFNGLDEBUGMESSAGECALLBACKPROC glad_glDebugMessageCallback;
+#define glDebugMessageCallback glad_glDebugMessageCallback
+typedef GLuint (APIENTRYP PFNGLGETDEBUGMESSAGELOGPROC)(GLuint count, GLsizei bufSize, GLenum *sources, GLenum *types, GLuint *ids, GLenum *severities, GLsizei *lengths, GLchar *messageLog);
+GLAPI PFNGLGETDEBUGMESSAGELOGPROC glad_glGetDebugMessageLog;
+#define glGetDebugMessageLog glad_glGetDebugMessageLog
+typedef void (APIENTRYP PFNGLPUSHDEBUGGROUPPROC)(GLenum source, GLuint id, GLsizei length, const GLchar *message);
+GLAPI PFNGLPUSHDEBUGGROUPPROC glad_glPushDebugGroup;
+#define glPushDebugGroup glad_glPushDebugGroup
+typedef void (APIENTRYP PFNGLPOPDEBUGGROUPPROC)(void);
+GLAPI PFNGLPOPDEBUGGROUPPROC glad_glPopDebugGroup;
+#define glPopDebugGroup glad_glPopDebugGroup
+typedef void (APIENTRYP PFNGLOBJECTLABELPROC)(GLenum identifier, GLuint name, GLsizei length, const GLchar *label);
+GLAPI PFNGLOBJECTLABELPROC glad_glObjectLabel;
+#define glObjectLabel glad_glObjectLabel
+typedef void (APIENTRYP PFNGLGETOBJECTLABELPROC)(GLenum identifier, GLuint name, GLsizei bufSize, GLsizei *length, GLchar *label);
+GLAPI PFNGLGETOBJECTLABELPROC glad_glGetObjectLabel;
+#define glGetObjectLabel glad_glGetObjectLabel
+typedef void (APIENTRYP PFNGLOBJECTPTRLABELPROC)(const void *ptr, GLsizei length, const GLchar *label);
+GLAPI PFNGLOBJECTPTRLABELPROC glad_glObjectPtrLabel;
+#define glObjectPtrLabel glad_glObjectPtrLabel
+typedef void (APIENTRYP PFNGLGETOBJECTPTRLABELPROC)(const void *ptr, GLsizei bufSize, GLsizei *length, GLchar *label);
+GLAPI PFNGLGETOBJECTPTRLABELPROC glad_glGetObjectPtrLabel;
+#define glGetObjectPtrLabel glad_glGetObjectPtrLabel
+#endif
+#ifndef GL_VERSION_4_4
+#define GL_VERSION_4_4 1
+GLAPI int GLAD_GL_VERSION_4_4;
+typedef void (APIENTRYP PFNGLBUFFERSTORAGEPROC)(GLenum target, GLsizeiptr size, const void *data, GLbitfield flags);
+GLAPI PFNGLBUFFERSTORAGEPROC glad_glBufferStorage;
+#define glBufferStorage glad_glBufferStorage
+typedef void (APIENTRYP PFNGLCLEARTEXIMAGEPROC)(GLuint texture, GLint level, GLenum format, GLenum type, const void *data);
+GLAPI PFNGLCLEARTEXIMAGEPROC glad_glClearTexImage;
+#define glClearTexImage glad_glClearTexImage
+typedef void (APIENTRYP PFNGLCLEARTEXSUBIMAGEPROC)(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *data);
+GLAPI PFNGLCLEARTEXSUBIMAGEPROC glad_glClearTexSubImage;
+#define glClearTexSubImage glad_glClearTexSubImage
+typedef void (APIENTRYP PFNGLBINDBUFFERSBASEPROC)(GLenum target, GLuint first, GLsizei count, const GLuint *buffers);
+GLAPI PFNGLBINDBUFFERSBASEPROC glad_glBindBuffersBase;
+#define glBindBuffersBase glad_glBindBuffersBase
+typedef void (APIENTRYP PFNGLBINDBUFFERSRANGEPROC)(GLenum target, GLuint first, GLsizei count, const GLuint *buffers, const GLintptr *offsets, const GLsizeiptr *sizes);
+GLAPI PFNGLBINDBUFFERSRANGEPROC glad_glBindBuffersRange;
+#define glBindBuffersRange glad_glBindBuffersRange
+typedef void (APIENTRYP PFNGLBINDTEXTURESPROC)(GLuint first, GLsizei count, const GLuint *textures);
+GLAPI PFNGLBINDTEXTURESPROC glad_glBindTextures;
+#define glBindTextures glad_glBindTextures
+typedef void (APIENTRYP PFNGLBINDSAMPLERSPROC)(GLuint first, GLsizei count, const GLuint *samplers);
+GLAPI PFNGLBINDSAMPLERSPROC glad_glBindSamplers;
+#define glBindSamplers glad_glBindSamplers
+typedef void (APIENTRYP PFNGLBINDIMAGETEXTURESPROC)(GLuint first, GLsizei count, const GLuint *textures);
+GLAPI PFNGLBINDIMAGETEXTURESPROC glad_glBindImageTextures;
+#define glBindImageTextures glad_glBindImageTextures
+typedef void (APIENTRYP PFNGLBINDVERTEXBUFFERSPROC)(GLuint first, GLsizei count, const GLuint *buffers, const GLintptr *offsets, const GLsizei *strides);
+GLAPI PFNGLBINDVERTEXBUFFERSPROC glad_glBindVertexBuffers;
+#define glBindVertexBuffers glad_glBindVertexBuffers
+#endif
+#ifndef GL_VERSION_4_5
+#define GL_VERSION_4_5 1
+GLAPI int GLAD_GL_VERSION_4_5;
+typedef void (APIENTRYP PFNGLCLIPCONTROLPROC)(GLenum origin, GLenum depth);
+GLAPI PFNGLCLIPCONTROLPROC glad_glClipControl;
+#define glClipControl glad_glClipControl
+typedef void (APIENTRYP PFNGLCREATETRANSFORMFEEDBACKSPROC)(GLsizei n, GLuint *ids);
+GLAPI PFNGLCREATETRANSFORMFEEDBACKSPROC glad_glCreateTransformFeedbacks;
+#define glCreateTransformFeedbacks glad_glCreateTransformFeedbacks
+typedef void (APIENTRYP PFNGLTRANSFORMFEEDBACKBUFFERBASEPROC)(GLuint xfb, GLuint index, GLuint buffer);
+GLAPI PFNGLTRANSFORMFEEDBACKBUFFERBASEPROC glad_glTransformFeedbackBufferBase;
+#define glTransformFeedbackBufferBase glad_glTransformFeedbackBufferBase
+typedef void (APIENTRYP PFNGLTRANSFORMFEEDBACKBUFFERRANGEPROC)(GLuint xfb, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size);
+GLAPI PFNGLTRANSFORMFEEDBACKBUFFERRANGEPROC glad_glTransformFeedbackBufferRange;
+#define glTransformFeedbackBufferRange glad_glTransformFeedbackBufferRange
+typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKIVPROC)(GLuint xfb, GLenum pname, GLint *param);
+GLAPI PFNGLGETTRANSFORMFEEDBACKIVPROC glad_glGetTransformFeedbackiv;
+#define glGetTransformFeedbackiv glad_glGetTransformFeedbackiv
+typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI_VPROC)(GLuint xfb, GLenum pname, GLuint index, GLint *param);
+GLAPI PFNGLGETTRANSFORMFEEDBACKI_VPROC glad_glGetTransformFeedbacki_v;
+#define glGetTransformFeedbacki_v glad_glGetTransformFeedbacki_v
+typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI64_VPROC)(GLuint xfb, GLenum pname, GLuint index, GLint64 *param);
+GLAPI PFNGLGETTRANSFORMFEEDBACKI64_VPROC glad_glGetTransformFeedbacki64_v;
+#define glGetTransformFeedbacki64_v glad_glGetTransformFeedbacki64_v
+typedef void (APIENTRYP PFNGLCREATEBUFFERSPROC)(GLsizei n, GLuint *buffers);
+GLAPI PFNGLCREATEBUFFERSPROC glad_glCreateBuffers;
+#define glCreateBuffers glad_glCreateBuffers
+typedef void (APIENTRYP PFNGLNAMEDBUFFERSTORAGEPROC)(GLuint buffer, GLsizeiptr size, const void *data, GLbitfield flags);
+GLAPI PFNGLNAMEDBUFFERSTORAGEPROC glad_glNamedBufferStorage;
+#define glNamedBufferStorage glad_glNamedBufferStorage
+typedef void (APIENTRYP PFNGLNAMEDBUFFERDATAPROC)(GLuint buffer, GLsizeiptr size, const void *data, GLenum usage);
+GLAPI PFNGLNAMEDBUFFERDATAPROC glad_glNamedBufferData;
+#define glNamedBufferData glad_glNamedBufferData
+typedef void (APIENTRYP PFNGLNAMEDBUFFERSUBDATAPROC)(GLuint buffer, GLintptr offset, GLsizeiptr size, const void *data);
+GLAPI PFNGLNAMEDBUFFERSUBDATAPROC glad_glNamedBufferSubData;
+#define glNamedBufferSubData glad_glNamedBufferSubData
+typedef void (APIENTRYP PFNGLCOPYNAMEDBUFFERSUBDATAPROC)(GLuint readBuffer, GLuint writeBuffer, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size);
+GLAPI PFNGLCOPYNAMEDBUFFERSUBDATAPROC glad_glCopyNamedBufferSubData;
+#define glCopyNamedBufferSubData glad_glCopyNamedBufferSubData
+typedef void (APIENTRYP PFNGLCLEARNAMEDBUFFERDATAPROC)(GLuint buffer, GLenum internalformat, GLenum format, GLenum type, const void *data);
+GLAPI PFNGLCLEARNAMEDBUFFERDATAPROC glad_glClearNamedBufferData;
+#define glClearNamedBufferData glad_glClearNamedBufferData
+typedef void (APIENTRYP PFNGLCLEARNAMEDBUFFERSUBDATAPROC)(GLuint buffer, GLenum internalformat, GLintptr offset, GLsizeiptr size, GLenum format, GLenum type, const void *data);
+GLAPI PFNGLCLEARNAMEDBUFFERSUBDATAPROC glad_glClearNamedBufferSubData;
+#define glClearNamedBufferSubData glad_glClearNamedBufferSubData
+typedef void * (APIENTRYP PFNGLMAPNAMEDBUFFERPROC)(GLuint buffer, GLenum access);
+GLAPI PFNGLMAPNAMEDBUFFERPROC glad_glMapNamedBuffer;
+#define glMapNamedBuffer glad_glMapNamedBuffer
+typedef void * (APIENTRYP PFNGLMAPNAMEDBUFFERRANGEPROC)(GLuint buffer, GLintptr offset, GLsizeiptr length, GLbitfield access);
+GLAPI PFNGLMAPNAMEDBUFFERRANGEPROC glad_glMapNamedBufferRange;
+#define glMapNamedBufferRange glad_glMapNamedBufferRange
+typedef GLboolean (APIENTRYP PFNGLUNMAPNAMEDBUFFERPROC)(GLuint buffer);
+GLAPI PFNGLUNMAPNAMEDBUFFERPROC glad_glUnmapNamedBuffer;
+#define glUnmapNamedBuffer glad_glUnmapNamedBuffer
+typedef void (APIENTRYP PFNGLFLUSHMAPPEDNAMEDBUFFERRANGEPROC)(GLuint buffer, GLintptr offset, GLsizeiptr length);
+GLAPI PFNGLFLUSHMAPPEDNAMEDBUFFERRANGEPROC glad_glFlushMappedNamedBufferRange;
+#define glFlushMappedNamedBufferRange glad_glFlushMappedNamedBufferRange
+typedef void (APIENTRYP PFNGLGETNAMEDBUFFERPARAMETERIVPROC)(GLuint buffer, GLenum pname, GLint *params);
+GLAPI PFNGLGETNAMEDBUFFERPARAMETERIVPROC glad_glGetNamedBufferParameteriv;
+#define glGetNamedBufferParameteriv glad_glGetNamedBufferParameteriv
+typedef void (APIENTRYP PFNGLGETNAMEDBUFFERPARAMETERI64VPROC)(GLuint buffer, GLenum pname, GLint64 *params);
+GLAPI PFNGLGETNAMEDBUFFERPARAMETERI64VPROC glad_glGetNamedBufferParameteri64v;
+#define glGetNamedBufferParameteri64v glad_glGetNamedBufferParameteri64v
+typedef void (APIENTRYP PFNGLGETNAMEDBUFFERPOINTERVPROC)(GLuint buffer, GLenum pname, void **params);
+GLAPI PFNGLGETNAMEDBUFFERPOINTERVPROC glad_glGetNamedBufferPointerv;
+#define glGetNamedBufferPointerv glad_glGetNamedBufferPointerv
+typedef void (APIENTRYP PFNGLGETNAMEDBUFFERSUBDATAPROC)(GLuint buffer, GLintptr offset, GLsizeiptr size, void *data);
+GLAPI PFNGLGETNAMEDBUFFERSUBDATAPROC glad_glGetNamedBufferSubData;
+#define glGetNamedBufferSubData glad_glGetNamedBufferSubData
+typedef void (APIENTRYP PFNGLCREATEFRAMEBUFFERSPROC)(GLsizei n, GLuint *framebuffers);
+GLAPI PFNGLCREATEFRAMEBUFFERSPROC glad_glCreateFramebuffers;
+#define glCreateFramebuffers glad_glCreateFramebuffers
+typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERRENDERBUFFERPROC)(GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
+GLAPI PFNGLNAMEDFRAMEBUFFERRENDERBUFFERPROC glad_glNamedFramebufferRenderbuffer;
+#define glNamedFramebufferRenderbuffer glad_glNamedFramebufferRenderbuffer
+typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERPARAMETERIPROC)(GLuint framebuffer, GLenum pname, GLint param);
+GLAPI PFNGLNAMEDFRAMEBUFFERPARAMETERIPROC glad_glNamedFramebufferParameteri;
+#define glNamedFramebufferParameteri glad_glNamedFramebufferParameteri
+typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERTEXTUREPROC)(GLuint framebuffer, GLenum attachment, GLuint texture, GLint level);
+GLAPI PFNGLNAMEDFRAMEBUFFERTEXTUREPROC glad_glNamedFramebufferTexture;
+#define glNamedFramebufferTexture glad_glNamedFramebufferTexture
+typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERTEXTURELAYERPROC)(GLuint framebuffer, GLenum attachment, GLuint texture, GLint level, GLint layer);
+GLAPI PFNGLNAMEDFRAMEBUFFERTEXTURELAYERPROC glad_glNamedFramebufferTextureLayer;
+#define glNamedFramebufferTextureLayer glad_glNamedFramebufferTextureLayer
+typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERDRAWBUFFERPROC)(GLuint framebuffer, GLenum buf);
+GLAPI PFNGLNAMEDFRAMEBUFFERDRAWBUFFERPROC glad_glNamedFramebufferDrawBuffer;
+#define glNamedFramebufferDrawBuffer glad_glNamedFramebufferDrawBuffer
+typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERDRAWBUFFERSPROC)(GLuint framebuffer, GLsizei n, const GLenum *bufs);
+GLAPI PFNGLNAMEDFRAMEBUFFERDRAWBUFFERSPROC glad_glNamedFramebufferDrawBuffers;
+#define glNamedFramebufferDrawBuffers glad_glNamedFramebufferDrawBuffers
+typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERREADBUFFERPROC)(GLuint framebuffer, GLenum src);
+GLAPI PFNGLNAMEDFRAMEBUFFERREADBUFFERPROC glad_glNamedFramebufferReadBuffer;
+#define glNamedFramebufferReadBuffer glad_glNamedFramebufferReadBuffer
+typedef void (APIENTRYP PFNGLINVALIDATENAMEDFRAMEBUFFERDATAPROC)(GLuint framebuffer, GLsizei numAttachments, const GLenum *attachments);
+GLAPI PFNGLINVALIDATENAMEDFRAMEBUFFERDATAPROC glad_glInvalidateNamedFramebufferData;
+#define glInvalidateNamedFramebufferData glad_glInvalidateNamedFramebufferData
+typedef void (APIENTRYP PFNGLINVALIDATENAMEDFRAMEBUFFERSUBDATAPROC)(GLuint framebuffer, GLsizei numAttachments, const GLenum *attachments, GLint x, GLint y, GLsizei width, GLsizei height);
+GLAPI PFNGLINVALIDATENAMEDFRAMEBUFFERSUBDATAPROC glad_glInvalidateNamedFramebufferSubData;
+#define glInvalidateNamedFramebufferSubData glad_glInvalidateNamedFramebufferSubData
+typedef void (APIENTRYP PFNGLCLEARNAMEDFRAMEBUFFERIVPROC)(GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLint *value);
+GLAPI PFNGLCLEARNAMEDFRAMEBUFFERIVPROC glad_glClearNamedFramebufferiv;
+#define glClearNamedFramebufferiv glad_glClearNamedFramebufferiv
+typedef void (APIENTRYP PFNGLCLEARNAMEDFRAMEBUFFERUIVPROC)(GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLuint *value);
+GLAPI PFNGLCLEARNAMEDFRAMEBUFFERUIVPROC glad_glClearNamedFramebufferuiv;
+#define glClearNamedFramebufferuiv glad_glClearNamedFramebufferuiv
+typedef void (APIENTRYP PFNGLCLEARNAMEDFRAMEBUFFERFVPROC)(GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLfloat *value);
+GLAPI PFNGLCLEARNAMEDFRAMEBUFFERFVPROC glad_glClearNamedFramebufferfv;
+#define glClearNamedFramebufferfv glad_glClearNamedFramebufferfv
+typedef void (APIENTRYP PFNGLCLEARNAMEDFRAMEBUFFERFIPROC)(GLuint framebuffer, GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
+GLAPI PFNGLCLEARNAMEDFRAMEBUFFERFIPROC glad_glClearNamedFramebufferfi;
+#define glClearNamedFramebufferfi glad_glClearNamedFramebufferfi
+typedef void (APIENTRYP PFNGLBLITNAMEDFRAMEBUFFERPROC)(GLuint readFramebuffer, GLuint drawFramebuffer, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
+GLAPI PFNGLBLITNAMEDFRAMEBUFFERPROC glad_glBlitNamedFramebuffer;
+#define glBlitNamedFramebuffer glad_glBlitNamedFramebuffer
+typedef GLenum (APIENTRYP PFNGLCHECKNAMEDFRAMEBUFFERSTATUSPROC)(GLuint framebuffer, GLenum target);
+GLAPI PFNGLCHECKNAMEDFRAMEBUFFERSTATUSPROC glad_glCheckNamedFramebufferStatus;
+#define glCheckNamedFramebufferStatus glad_glCheckNamedFramebufferStatus
+typedef void (APIENTRYP PFNGLGETNAMEDFRAMEBUFFERPARAMETERIVPROC)(GLuint framebuffer, GLenum pname, GLint *param);
+GLAPI PFNGLGETNAMEDFRAMEBUFFERPARAMETERIVPROC glad_glGetNamedFramebufferParameteriv;
+#define glGetNamedFramebufferParameteriv glad_glGetNamedFramebufferParameteriv
+typedef void (APIENTRYP PFNGLGETNAMEDFRAMEBUFFERATTACHMENTPARAMETERIVPROC)(GLuint framebuffer, GLenum attachment, GLenum pname, GLint *params);
+GLAPI PFNGLGETNAMEDFRAMEBUFFERATTACHMENTPARAMETERIVPROC glad_glGetNamedFramebufferAttachmentParameteriv;
+#define glGetNamedFramebufferAttachmentParameteriv glad_glGetNamedFramebufferAttachmentParameteriv
+typedef void (APIENTRYP PFNGLCREATERENDERBUFFERSPROC)(GLsizei n, GLuint *renderbuffers);
+GLAPI PFNGLCREATERENDERBUFFERSPROC glad_glCreateRenderbuffers;
+#define glCreateRenderbuffers glad_glCreateRenderbuffers
+typedef void (APIENTRYP PFNGLNAMEDRENDERBUFFERSTORAGEPROC)(GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height);
+GLAPI PFNGLNAMEDRENDERBUFFERSTORAGEPROC glad_glNamedRenderbufferStorage;
+#define glNamedRenderbufferStorage glad_glNamedRenderbufferStorage
+typedef void (APIENTRYP PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLEPROC)(GLuint renderbuffer, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height);
+GLAPI PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLEPROC glad_glNamedRenderbufferStorageMultisample;
+#define glNamedRenderbufferStorageMultisample glad_glNamedRenderbufferStorageMultisample
+typedef void (APIENTRYP PFNGLGETNAMEDRENDERBUFFERPARAMETERIVPROC)(GLuint renderbuffer, GLenum pname, GLint *params);
+GLAPI PFNGLGETNAMEDRENDERBUFFERPARAMETERIVPROC glad_glGetNamedRenderbufferParameteriv;
+#define glGetNamedRenderbufferParameteriv glad_glGetNamedRenderbufferParameteriv
+typedef void (APIENTRYP PFNGLCREATETEXTURESPROC)(GLenum target, GLsizei n, GLuint *textures);
+GLAPI PFNGLCREATETEXTURESPROC glad_glCreateTextures;
+#define glCreateTextures glad_glCreateTextures
+typedef void (APIENTRYP PFNGLTEXTUREBUFFERPROC)(GLuint texture, GLenum internalformat, GLuint buffer);
+GLAPI PFNGLTEXTUREBUFFERPROC glad_glTextureBuffer;
+#define glTextureBuffer glad_glTextureBuffer
+typedef void (APIENTRYP PFNGLTEXTUREBUFFERRANGEPROC)(GLuint texture, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size);
+GLAPI PFNGLTEXTUREBUFFERRANGEPROC glad_glTextureBufferRange;
+#define glTextureBufferRange glad_glTextureBufferRange
+typedef void (APIENTRYP PFNGLTEXTURESTORAGE1DPROC)(GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width);
+GLAPI PFNGLTEXTURESTORAGE1DPROC glad_glTextureStorage1D;
+#define glTextureStorage1D glad_glTextureStorage1D
+typedef void (APIENTRYP PFNGLTEXTURESTORAGE2DPROC)(GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height);
+GLAPI PFNGLTEXTURESTORAGE2DPROC glad_glTextureStorage2D;
+#define glTextureStorage2D glad_glTextureStorage2D
+typedef void (APIENTRYP PFNGLTEXTURESTORAGE3DPROC)(GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth);
+GLAPI PFNGLTEXTURESTORAGE3DPROC glad_glTextureStorage3D;
+#define glTextureStorage3D glad_glTextureStorage3D
+typedef void (APIENTRYP PFNGLTEXTURESTORAGE2DMULTISAMPLEPROC)(GLuint texture, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations);
+GLAPI PFNGLTEXTURESTORAGE2DMULTISAMPLEPROC glad_glTextureStorage2DMultisample;
+#define glTextureStorage2DMultisample glad_glTextureStorage2DMultisample
+typedef void (APIENTRYP PFNGLTEXTURESTORAGE3DMULTISAMPLEPROC)(GLuint texture, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations);
+GLAPI PFNGLTEXTURESTORAGE3DMULTISAMPLEPROC glad_glTextureStorage3DMultisample;
+#define glTextureStorage3DMultisample glad_glTextureStorage3DMultisample
+typedef void (APIENTRYP PFNGLTEXTURESUBIMAGE1DPROC)(GLuint texture, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void *pixels);
+GLAPI PFNGLTEXTURESUBIMAGE1DPROC glad_glTextureSubImage1D;
+#define glTextureSubImage1D glad_glTextureSubImage1D
+typedef void (APIENTRYP PFNGLTEXTURESUBIMAGE2DPROC)(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels);
+GLAPI PFNGLTEXTURESUBIMAGE2DPROC glad_glTextureSubImage2D;
+#define glTextureSubImage2D glad_glTextureSubImage2D
+typedef void (APIENTRYP PFNGLTEXTURESUBIMAGE3DPROC)(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels);
+GLAPI PFNGLTEXTURESUBIMAGE3DPROC glad_glTextureSubImage3D;
+#define glTextureSubImage3D glad_glTextureSubImage3D
+typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTURESUBIMAGE1DPROC)(GLuint texture, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *data);
+GLAPI PFNGLCOMPRESSEDTEXTURESUBIMAGE1DPROC glad_glCompressedTextureSubImage1D;
+#define glCompressedTextureSubImage1D glad_glCompressedTextureSubImage1D
+typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTURESUBIMAGE2DPROC)(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data);
+GLAPI PFNGLCOMPRESSEDTEXTURESUBIMAGE2DPROC glad_glCompressedTextureSubImage2D;
+#define glCompressedTextureSubImage2D glad_glCompressedTextureSubImage2D
+typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTURESUBIMAGE3DPROC)(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *data);
+GLAPI PFNGLCOMPRESSEDTEXTURESUBIMAGE3DPROC glad_glCompressedTextureSubImage3D;
+#define glCompressedTextureSubImage3D glad_glCompressedTextureSubImage3D
+typedef void (APIENTRYP PFNGLCOPYTEXTURESUBIMAGE1DPROC)(GLuint texture, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
+GLAPI PFNGLCOPYTEXTURESUBIMAGE1DPROC glad_glCopyTextureSubImage1D;
+#define glCopyTextureSubImage1D glad_glCopyTextureSubImage1D
+typedef void (APIENTRYP PFNGLCOPYTEXTURESUBIMAGE2DPROC)(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
+GLAPI PFNGLCOPYTEXTURESUBIMAGE2DPROC glad_glCopyTextureSubImage2D;
+#define glCopyTextureSubImage2D glad_glCopyTextureSubImage2D
+typedef void (APIENTRYP PFNGLCOPYTEXTURESUBIMAGE3DPROC)(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
+GLAPI PFNGLCOPYTEXTURESUBIMAGE3DPROC glad_glCopyTextureSubImage3D;
+#define glCopyTextureSubImage3D glad_glCopyTextureSubImage3D
+typedef void (APIENTRYP PFNGLTEXTUREPARAMETERFPROC)(GLuint texture, GLenum pname, GLfloat param);
+GLAPI PFNGLTEXTUREPARAMETERFPROC glad_glTextureParameterf;
+#define glTextureParameterf glad_glTextureParameterf
+typedef void (APIENTRYP PFNGLTEXTUREPARAMETERFVPROC)(GLuint texture, GLenum pname, const GLfloat *param);
+GLAPI PFNGLTEXTUREPARAMETERFVPROC glad_glTextureParameterfv;
+#define glTextureParameterfv glad_glTextureParameterfv
+typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIPROC)(GLuint texture, GLenum pname, GLint param);
+GLAPI PFNGLTEXTUREPARAMETERIPROC glad_glTextureParameteri;
+#define glTextureParameteri glad_glTextureParameteri
+typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIIVPROC)(GLuint texture, GLenum pname, const GLint *params);
+GLAPI PFNGLTEXTUREPARAMETERIIVPROC glad_glTextureParameterIiv;
+#define glTextureParameterIiv glad_glTextureParameterIiv
+typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIUIVPROC)(GLuint texture, GLenum pname, const GLuint *params);
+GLAPI PFNGLTEXTUREPARAMETERIUIVPROC glad_glTextureParameterIuiv;
+#define glTextureParameterIuiv glad_glTextureParameterIuiv
+typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIVPROC)(GLuint texture, GLenum pname, const GLint *param);
+GLAPI PFNGLTEXTUREPARAMETERIVPROC glad_glTextureParameteriv;
+#define glTextureParameteriv glad_glTextureParameteriv
+typedef void (APIENTRYP PFNGLGENERATETEXTUREMIPMAPPROC)(GLuint texture);
+GLAPI PFNGLGENERATETEXTUREMIPMAPPROC glad_glGenerateTextureMipmap;
+#define glGenerateTextureMipmap glad_glGenerateTextureMipmap
+typedef void (APIENTRYP PFNGLBINDTEXTUREUNITPROC)(GLuint unit, GLuint texture);
+GLAPI PFNGLBINDTEXTUREUNITPROC glad_glBindTextureUnit;
+#define glBindTextureUnit glad_glBindTextureUnit
+typedef void (APIENTRYP PFNGLGETTEXTUREIMAGEPROC)(GLuint texture, GLint level, GLenum format, GLenum type, GLsizei bufSize, void *pixels);
+GLAPI PFNGLGETTEXTUREIMAGEPROC glad_glGetTextureImage;
+#define glGetTextureImage glad_glGetTextureImage
+typedef void (APIENTRYP PFNGLGETCOMPRESSEDTEXTUREIMAGEPROC)(GLuint texture, GLint level, GLsizei bufSize, void *pixels);
+GLAPI PFNGLGETCOMPRESSEDTEXTUREIMAGEPROC glad_glGetCompressedTextureImage;
+#define glGetCompressedTextureImage glad_glGetCompressedTextureImage
+typedef void (APIENTRYP PFNGLGETTEXTURELEVELPARAMETERFVPROC)(GLuint texture, GLint level, GLenum pname, GLfloat *params);
+GLAPI PFNGLGETTEXTURELEVELPARAMETERFVPROC glad_glGetTextureLevelParameterfv;
+#define glGetTextureLevelParameterfv glad_glGetTextureLevelParameterfv
+typedef void (APIENTRYP PFNGLGETTEXTURELEVELPARAMETERIVPROC)(GLuint texture, GLint level, GLenum pname, GLint *params);
+GLAPI PFNGLGETTEXTURELEVELPARAMETERIVPROC glad_glGetTextureLevelParameteriv;
+#define glGetTextureLevelParameteriv glad_glGetTextureLevelParameteriv
+typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERFVPROC)(GLuint texture, GLenum pname, GLfloat *params);
+GLAPI PFNGLGETTEXTUREPARAMETERFVPROC glad_glGetTextureParameterfv;
+#define glGetTextureParameterfv glad_glGetTextureParameterfv
+typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERIIVPROC)(GLuint texture, GLenum pname, GLint *params);
+GLAPI PFNGLGETTEXTUREPARAMETERIIVPROC glad_glGetTextureParameterIiv;
+#define glGetTextureParameterIiv glad_glGetTextureParameterIiv
+typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERIUIVPROC)(GLuint texture, GLenum pname, GLuint *params);
+GLAPI PFNGLGETTEXTUREPARAMETERIUIVPROC glad_glGetTextureParameterIuiv;
+#define glGetTextureParameterIuiv glad_glGetTextureParameterIuiv
+typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERIVPROC)(GLuint texture, GLenum pname, GLint *params);
+GLAPI PFNGLGETTEXTUREPARAMETERIVPROC glad_glGetTextureParameteriv;
+#define glGetTextureParameteriv glad_glGetTextureParameteriv
+typedef void (APIENTRYP PFNGLCREATEVERTEXARRAYSPROC)(GLsizei n, GLuint *arrays);
+GLAPI PFNGLCREATEVERTEXARRAYSPROC glad_glCreateVertexArrays;
+#define glCreateVertexArrays glad_glCreateVertexArrays
+typedef void (APIENTRYP PFNGLDISABLEVERTEXARRAYATTRIBPROC)(GLuint vaobj, GLuint index);
+GLAPI PFNGLDISABLEVERTEXARRAYATTRIBPROC glad_glDisableVertexArrayAttrib;
+#define glDisableVertexArrayAttrib glad_glDisableVertexArrayAttrib
+typedef void (APIENTRYP PFNGLENABLEVERTEXARRAYATTRIBPROC)(GLuint vaobj, GLuint index);
+GLAPI PFNGLENABLEVERTEXARRAYATTRIBPROC glad_glEnableVertexArrayAttrib;
+#define glEnableVertexArrayAttrib glad_glEnableVertexArrayAttrib
+typedef void (APIENTRYP PFNGLVERTEXARRAYELEMENTBUFFERPROC)(GLuint vaobj, GLuint buffer);
+GLAPI PFNGLVERTEXARRAYELEMENTBUFFERPROC glad_glVertexArrayElementBuffer;
+#define glVertexArrayElementBuffer glad_glVertexArrayElementBuffer
+typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXBUFFERPROC)(GLuint vaobj, GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride);
+GLAPI PFNGLVERTEXARRAYVERTEXBUFFERPROC glad_glVertexArrayVertexBuffer;
+#define glVertexArrayVertexBuffer glad_glVertexArrayVertexBuffer
+typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXBUFFERSPROC)(GLuint vaobj, GLuint first, GLsizei count, const GLuint *buffers, const GLintptr *offsets, const GLsizei *strides);
+GLAPI PFNGLVERTEXARRAYVERTEXBUFFERSPROC glad_glVertexArrayVertexBuffers;
+#define glVertexArrayVertexBuffers glad_glVertexArrayVertexBuffers
+typedef void (APIENTRYP PFNGLVERTEXARRAYATTRIBBINDINGPROC)(GLuint vaobj, GLuint attribindex, GLuint bindingindex);
+GLAPI PFNGLVERTEXARRAYATTRIBBINDINGPROC glad_glVertexArrayAttribBinding;
+#define glVertexArrayAttribBinding glad_glVertexArrayAttribBinding
+typedef void (APIENTRYP PFNGLVERTEXARRAYATTRIBFORMATPROC)(GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset);
+GLAPI PFNGLVERTEXARRAYATTRIBFORMATPROC glad_glVertexArrayAttribFormat;
+#define glVertexArrayAttribFormat glad_glVertexArrayAttribFormat
+typedef void (APIENTRYP PFNGLVERTEXARRAYATTRIBIFORMATPROC)(GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
+GLAPI PFNGLVERTEXARRAYATTRIBIFORMATPROC glad_glVertexArrayAttribIFormat;
+#define glVertexArrayAttribIFormat glad_glVertexArrayAttribIFormat
+typedef void (APIENTRYP PFNGLVERTEXARRAYATTRIBLFORMATPROC)(GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
+GLAPI PFNGLVERTEXARRAYATTRIBLFORMATPROC glad_glVertexArrayAttribLFormat;
+#define glVertexArrayAttribLFormat glad_glVertexArrayAttribLFormat
+typedef void (APIENTRYP PFNGLVERTEXARRAYBINDINGDIVISORPROC)(GLuint vaobj, GLuint bindingindex, GLuint divisor);
+GLAPI PFNGLVERTEXARRAYBINDINGDIVISORPROC glad_glVertexArrayBindingDivisor;
+#define glVertexArrayBindingDivisor glad_glVertexArrayBindingDivisor
+typedef void (APIENTRYP PFNGLGETVERTEXARRAYIVPROC)(GLuint vaobj, GLenum pname, GLint *param);
+GLAPI PFNGLGETVERTEXARRAYIVPROC glad_glGetVertexArrayiv;
+#define glGetVertexArrayiv glad_glGetVertexArrayiv
+typedef void (APIENTRYP PFNGLGETVERTEXARRAYINDEXEDIVPROC)(GLuint vaobj, GLuint index, GLenum pname, GLint *param);
+GLAPI PFNGLGETVERTEXARRAYINDEXEDIVPROC glad_glGetVertexArrayIndexediv;
+#define glGetVertexArrayIndexediv glad_glGetVertexArrayIndexediv
+typedef void (APIENTRYP PFNGLGETVERTEXARRAYINDEXED64IVPROC)(GLuint vaobj, GLuint index, GLenum pname, GLint64 *param);
+GLAPI PFNGLGETVERTEXARRAYINDEXED64IVPROC glad_glGetVertexArrayIndexed64iv;
+#define glGetVertexArrayIndexed64iv glad_glGetVertexArrayIndexed64iv
+typedef void (APIENTRYP PFNGLCREATESAMPLERSPROC)(GLsizei n, GLuint *samplers);
+GLAPI PFNGLCREATESAMPLERSPROC glad_glCreateSamplers;
+#define glCreateSamplers glad_glCreateSamplers
+typedef void (APIENTRYP PFNGLCREATEPROGRAMPIPELINESPROC)(GLsizei n, GLuint *pipelines);
+GLAPI PFNGLCREATEPROGRAMPIPELINESPROC glad_glCreateProgramPipelines;
+#define glCreateProgramPipelines glad_glCreateProgramPipelines
+typedef void (APIENTRYP PFNGLCREATEQUERIESPROC)(GLenum target, GLsizei n, GLuint *ids);
+GLAPI PFNGLCREATEQUERIESPROC glad_glCreateQueries;
+#define glCreateQueries glad_glCreateQueries
+typedef void (APIENTRYP PFNGLGETQUERYBUFFEROBJECTI64VPROC)(GLuint id, GLuint buffer, GLenum pname, GLintptr offset);
+GLAPI PFNGLGETQUERYBUFFEROBJECTI64VPROC glad_glGetQueryBufferObjecti64v;
+#define glGetQueryBufferObjecti64v glad_glGetQueryBufferObjecti64v
+typedef void (APIENTRYP PFNGLGETQUERYBUFFEROBJECTIVPROC)(GLuint id, GLuint buffer, GLenum pname, GLintptr offset);
+GLAPI PFNGLGETQUERYBUFFEROBJECTIVPROC glad_glGetQueryBufferObjectiv;
+#define glGetQueryBufferObjectiv glad_glGetQueryBufferObjectiv
+typedef void (APIENTRYP PFNGLGETQUERYBUFFEROBJECTUI64VPROC)(GLuint id, GLuint buffer, GLenum pname, GLintptr offset);
+GLAPI PFNGLGETQUERYBUFFEROBJECTUI64VPROC glad_glGetQueryBufferObjectui64v;
+#define glGetQueryBufferObjectui64v glad_glGetQueryBufferObjectui64v
+typedef void (APIENTRYP PFNGLGETQUERYBUFFEROBJECTUIVPROC)(GLuint id, GLuint buffer, GLenum pname, GLintptr offset);
+GLAPI PFNGLGETQUERYBUFFEROBJECTUIVPROC glad_glGetQueryBufferObjectuiv;
+#define glGetQueryBufferObjectuiv glad_glGetQueryBufferObjectuiv
+typedef void (APIENTRYP PFNGLMEMORYBARRIERBYREGIONPROC)(GLbitfield barriers);
+GLAPI PFNGLMEMORYBARRIERBYREGIONPROC glad_glMemoryBarrierByRegion;
+#define glMemoryBarrierByRegion glad_glMemoryBarrierByRegion
+typedef void (APIENTRYP PFNGLGETTEXTURESUBIMAGEPROC)(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, GLsizei bufSize, void *pixels);
+GLAPI PFNGLGETTEXTURESUBIMAGEPROC glad_glGetTextureSubImage;
+#define glGetTextureSubImage glad_glGetTextureSubImage
+typedef void (APIENTRYP PFNGLGETCOMPRESSEDTEXTURESUBIMAGEPROC)(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLsizei bufSize, void *pixels);
+GLAPI PFNGLGETCOMPRESSEDTEXTURESUBIMAGEPROC glad_glGetCompressedTextureSubImage;
+#define glGetCompressedTextureSubImage glad_glGetCompressedTextureSubImage
+typedef GLenum (APIENTRYP PFNGLGETGRAPHICSRESETSTATUSPROC)(void);
+GLAPI PFNGLGETGRAPHICSRESETSTATUSPROC glad_glGetGraphicsResetStatus;
+#define glGetGraphicsResetStatus glad_glGetGraphicsResetStatus
+typedef void (APIENTRYP PFNGLGETNCOMPRESSEDTEXIMAGEPROC)(GLenum target, GLint lod, GLsizei bufSize, void *pixels);
+GLAPI PFNGLGETNCOMPRESSEDTEXIMAGEPROC glad_glGetnCompressedTexImage;
+#define glGetnCompressedTexImage glad_glGetnCompressedTexImage
+typedef void (APIENTRYP PFNGLGETNTEXIMAGEPROC)(GLenum target, GLint level, GLenum format, GLenum type, GLsizei bufSize, void *pixels);
+GLAPI PFNGLGETNTEXIMAGEPROC glad_glGetnTexImage;
+#define glGetnTexImage glad_glGetnTexImage
+typedef void (APIENTRYP PFNGLGETNUNIFORMDVPROC)(GLuint program, GLint location, GLsizei bufSize, GLdouble *params);
+GLAPI PFNGLGETNUNIFORMDVPROC glad_glGetnUniformdv;
+#define glGetnUniformdv glad_glGetnUniformdv
+typedef void (APIENTRYP PFNGLGETNUNIFORMFVPROC)(GLuint program, GLint location, GLsizei bufSize, GLfloat *params);
+GLAPI PFNGLGETNUNIFORMFVPROC glad_glGetnUniformfv;
+#define glGetnUniformfv glad_glGetnUniformfv
+typedef void (APIENTRYP PFNGLGETNUNIFORMIVPROC)(GLuint program, GLint location, GLsizei bufSize, GLint *params);
+GLAPI PFNGLGETNUNIFORMIVPROC glad_glGetnUniformiv;
+#define glGetnUniformiv glad_glGetnUniformiv
+typedef void (APIENTRYP PFNGLGETNUNIFORMUIVPROC)(GLuint program, GLint location, GLsizei bufSize, GLuint *params);
+GLAPI PFNGLGETNUNIFORMUIVPROC glad_glGetnUniformuiv;
+#define glGetnUniformuiv glad_glGetnUniformuiv
+typedef void (APIENTRYP PFNGLREADNPIXELSPROC)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, void *data);
+GLAPI PFNGLREADNPIXELSPROC glad_glReadnPixels;
+#define glReadnPixels glad_glReadnPixels
+typedef void (APIENTRYP PFNGLGETNMAPDVPROC)(GLenum target, GLenum query, GLsizei bufSize, GLdouble *v);
+GLAPI PFNGLGETNMAPDVPROC glad_glGetnMapdv;
+#define glGetnMapdv glad_glGetnMapdv
+typedef void (APIENTRYP PFNGLGETNMAPFVPROC)(GLenum target, GLenum query, GLsizei bufSize, GLfloat *v);
+GLAPI PFNGLGETNMAPFVPROC glad_glGetnMapfv;
+#define glGetnMapfv glad_glGetnMapfv
+typedef void (APIENTRYP PFNGLGETNMAPIVPROC)(GLenum target, GLenum query, GLsizei bufSize, GLint *v);
+GLAPI PFNGLGETNMAPIVPROC glad_glGetnMapiv;
+#define glGetnMapiv glad_glGetnMapiv
+typedef void (APIENTRYP PFNGLGETNPIXELMAPFVPROC)(GLenum map, GLsizei bufSize, GLfloat *values);
+GLAPI PFNGLGETNPIXELMAPFVPROC glad_glGetnPixelMapfv;
+#define glGetnPixelMapfv glad_glGetnPixelMapfv
+typedef void (APIENTRYP PFNGLGETNPIXELMAPUIVPROC)(GLenum map, GLsizei bufSize, GLuint *values);
+GLAPI PFNGLGETNPIXELMAPUIVPROC glad_glGetnPixelMapuiv;
+#define glGetnPixelMapuiv glad_glGetnPixelMapuiv
+typedef void (APIENTRYP PFNGLGETNPIXELMAPUSVPROC)(GLenum map, GLsizei bufSize, GLushort *values);
+GLAPI PFNGLGETNPIXELMAPUSVPROC glad_glGetnPixelMapusv;
+#define glGetnPixelMapusv glad_glGetnPixelMapusv
+typedef void (APIENTRYP PFNGLGETNPOLYGONSTIPPLEPROC)(GLsizei bufSize, GLubyte *pattern);
+GLAPI PFNGLGETNPOLYGONSTIPPLEPROC glad_glGetnPolygonStipple;
+#define glGetnPolygonStipple glad_glGetnPolygonStipple
+typedef void (APIENTRYP PFNGLGETNCOLORTABLEPROC)(GLenum target, GLenum format, GLenum type, GLsizei bufSize, void *table);
+GLAPI PFNGLGETNCOLORTABLEPROC glad_glGetnColorTable;
+#define glGetnColorTable glad_glGetnColorTable
+typedef void (APIENTRYP PFNGLGETNCONVOLUTIONFILTERPROC)(GLenum target, GLenum format, GLenum type, GLsizei bufSize, void *image);
+GLAPI PFNGLGETNCONVOLUTIONFILTERPROC glad_glGetnConvolutionFilter;
+#define glGetnConvolutionFilter glad_glGetnConvolutionFilter
+typedef void (APIENTRYP PFNGLGETNSEPARABLEFILTERPROC)(GLenum target, GLenum format, GLenum type, GLsizei rowBufSize, void *row, GLsizei columnBufSize, void *column, void *span);
+GLAPI PFNGLGETNSEPARABLEFILTERPROC glad_glGetnSeparableFilter;
+#define glGetnSeparableFilter glad_glGetnSeparableFilter
+typedef void (APIENTRYP PFNGLGETNHISTOGRAMPROC)(GLenum target, GLboolean reset, GLenum format, GLenum type, GLsizei bufSize, void *values);
+GLAPI PFNGLGETNHISTOGRAMPROC glad_glGetnHistogram;
+#define glGetnHistogram glad_glGetnHistogram
+typedef void (APIENTRYP PFNGLGETNMINMAXPROC)(GLenum target, GLboolean reset, GLenum format, GLenum type, GLsizei bufSize, void *values);
+GLAPI PFNGLGETNMINMAXPROC glad_glGetnMinmax;
+#define glGetnMinmax glad_glGetnMinmax
+typedef void (APIENTRYP PFNGLTEXTUREBARRIERPROC)(void);
+GLAPI PFNGLTEXTUREBARRIERPROC glad_glTextureBarrier;
+#define glTextureBarrier glad_glTextureBarrier
+#endif
+#ifndef GL_VERSION_4_6
+#define GL_VERSION_4_6 1
+GLAPI int GLAD_GL_VERSION_4_6;
+typedef void (APIENTRYP PFNGLSPECIALIZESHADERPROC)(GLuint shader, const GLchar *pEntryPoint, GLuint numSpecializationConstants, const GLuint *pConstantIndex, const GLuint *pConstantValue);
+GLAPI PFNGLSPECIALIZESHADERPROC glad_glSpecializeShader;
+#define glSpecializeShader glad_glSpecializeShader
+typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTCOUNTPROC)(GLenum mode, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+GLAPI PFNGLMULTIDRAWARRAYSINDIRECTCOUNTPROC glad_glMultiDrawArraysIndirectCount;
+#define glMultiDrawArraysIndirectCount glad_glMultiDrawArraysIndirectCount
+typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC)(GLenum mode, GLenum type, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+GLAPI PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC glad_glMultiDrawElementsIndirectCount;
+#define glMultiDrawElementsIndirectCount glad_glMultiDrawElementsIndirectCount
+typedef void (APIENTRYP PFNGLPOLYGONOFFSETCLAMPPROC)(GLfloat factor, GLfloat units, GLfloat clamp);
+GLAPI PFNGLPOLYGONOFFSETCLAMPPROC glad_glPolygonOffsetClamp;
+#define glPolygonOffsetClamp glad_glPolygonOffsetClamp
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glad/src/glad.c b/Basic_viewer/include/CGAL/GLFW/vendor/glad/src/glad.c
new file mode 100644
index 000000000000..2e1c599bf249
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glad/src/glad.c
@@ -0,0 +1,2532 @@
+/*
+
+    OpenGL loader generated by glad 0.1.36 on Thu Nov 16 10:22:08 2023.
+
+    Language/Generator: C/C++
+    Specification: gl
+    APIs: gl=4.6
+    Profile: compatibility
+    Extensions:
+        
+    Loader: True
+    Local files: False
+    Omit khrplatform: False
+    Reproducible: False
+
+    Commandline:
+        --profile="compatibility" --api="gl=4.6" --generator="c" --spec="gl" --extensions=""
+    Online:
+        https://glad.dav1d.de/#profile=compatibility&language=c&specification=gl&loader=on&api=gl%3D4.6
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <glad/glad.h>
+
+static void* get_proc(const char *namez);
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+#ifndef _WINDOWS_
+#undef APIENTRY
+#endif
+#include <windows.h>
+static HMODULE libGL;
+
+typedef void* (APIENTRYP PFNWGLGETPROCADDRESSPROC_PRIVATE)(const char*);
+static PFNWGLGETPROCADDRESSPROC_PRIVATE gladGetProcAddressPtr;
+
+#ifdef _MSC_VER
+#ifdef __has_include
+  #if __has_include(<winapifamily.h>)
+    #define HAVE_WINAPIFAMILY 1
+  #endif
+#elif _MSC_VER >= 1700 && !_USING_V110_SDK71_
+  #define HAVE_WINAPIFAMILY 1
+#endif
+#endif
+
+#ifdef HAVE_WINAPIFAMILY
+  #include <winapifamily.h>
+  #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
+    #define IS_UWP 1
+  #endif
+#endif
+
+static
+int open_gl(void) {
+#ifndef IS_UWP
+    libGL = LoadLibraryW(L"opengl32.dll");
+    if(libGL != NULL) {
+        void (* tmp)(void);
+        tmp = (void(*)(void)) GetProcAddress(libGL, "wglGetProcAddress");
+        gladGetProcAddressPtr = (PFNWGLGETPROCADDRESSPROC_PRIVATE) tmp;
+        return gladGetProcAddressPtr != NULL;
+    }
+#endif
+
+    return 0;
+}
+
+static
+void close_gl(void) {
+    if(libGL != NULL) {
+        FreeLibrary((HMODULE) libGL);
+        libGL = NULL;
+    }
+}
+#else
+#include <dlfcn.h>
+static void* libGL;
+
+#if !defined(__APPLE__) && !defined(__HAIKU__)
+typedef void* (APIENTRYP PFNGLXGETPROCADDRESSPROC_PRIVATE)(const char*);
+static PFNGLXGETPROCADDRESSPROC_PRIVATE gladGetProcAddressPtr;
+#endif
+
+static
+int open_gl(void) {
+#ifdef __APPLE__
+    static const char *NAMES[] = {
+        "../Frameworks/OpenGL.framework/OpenGL",
+        "/Library/Frameworks/OpenGL.framework/OpenGL",
+        "/System/Library/Frameworks/OpenGL.framework/OpenGL",
+        "/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL"
+    };
+#else
+    static const char *NAMES[] = {"libGL.so.1", "libGL.so"};
+#endif
+
+    unsigned int index = 0;
+    for(index = 0; index < (sizeof(NAMES) / sizeof(NAMES[0])); index++) {
+        libGL = dlopen(NAMES[index], RTLD_NOW | RTLD_GLOBAL);
+
+        if(libGL != NULL) {
+#if defined(__APPLE__) || defined(__HAIKU__)
+            return 1;
+#else
+            gladGetProcAddressPtr = (PFNGLXGETPROCADDRESSPROC_PRIVATE)dlsym(libGL,
+                "glXGetProcAddressARB");
+            return gladGetProcAddressPtr != NULL;
+#endif
+        }
+    }
+
+    return 0;
+}
+
+static
+void close_gl(void) {
+    if(libGL != NULL) {
+        dlclose(libGL);
+        libGL = NULL;
+    }
+}
+#endif
+
+static
+void* get_proc(const char *namez) {
+    void* result = NULL;
+    if(libGL == NULL) return NULL;
+
+#if !defined(__APPLE__) && !defined(__HAIKU__)
+    if(gladGetProcAddressPtr != NULL) {
+        result = gladGetProcAddressPtr(namez);
+    }
+#endif
+    if(result == NULL) {
+#if defined(_WIN32) || defined(__CYGWIN__)
+        result = (void*)GetProcAddress((HMODULE) libGL, namez);
+#else
+        result = dlsym(libGL, namez);
+#endif
+    }
+
+    return result;
+}
+
+int gladLoadGL(void) {
+    int status = 0;
+
+    if(open_gl()) {
+        status = gladLoadGLLoader(&get_proc);
+        close_gl();
+    }
+
+    return status;
+}
+
+struct gladGLversionStruct GLVersion = { 0, 0 };
+
+#if defined(GL_ES_VERSION_3_0) || defined(GL_VERSION_3_0)
+#define _GLAD_IS_SOME_NEW_VERSION 1
+#endif
+
+static int max_loaded_major;
+static int max_loaded_minor;
+
+static const char *exts = NULL;
+static int num_exts_i = 0;
+static char **exts_i = NULL;
+
+static int get_exts(void) {
+#ifdef _GLAD_IS_SOME_NEW_VERSION
+    if(max_loaded_major < 3) {
+#endif
+        exts = (const char *)glGetString(GL_EXTENSIONS);
+#ifdef _GLAD_IS_SOME_NEW_VERSION
+    } else {
+        unsigned int index;
+
+        num_exts_i = 0;
+        glGetIntegerv(GL_NUM_EXTENSIONS, &num_exts_i);
+        if (num_exts_i > 0) {
+            exts_i = (char **)malloc((size_t)num_exts_i * (sizeof *exts_i));
+        }
+
+        if (exts_i == NULL) {
+            return 0;
+        }
+
+        for(index = 0; index < (unsigned)num_exts_i; index++) {
+            const char *gl_str_tmp = (const char*)glGetStringi(GL_EXTENSIONS, index);
+            size_t len = strlen(gl_str_tmp);
+
+            char *local_str = (char*)malloc((len+1) * sizeof(char));
+            if(local_str != NULL) {
+                memcpy(local_str, gl_str_tmp, (len+1) * sizeof(char));
+            }
+            exts_i[index] = local_str;
+        }
+    }
+#endif
+    return 1;
+}
+
+static void free_exts(void) {
+    if (exts_i != NULL) {
+        int index;
+        for(index = 0; index < num_exts_i; index++) {
+            free((char *)exts_i[index]);
+        }
+        free((void *)exts_i);
+        exts_i = NULL;
+    }
+}
+
+static int has_ext(const char *ext) {
+#ifdef _GLAD_IS_SOME_NEW_VERSION
+    if(max_loaded_major < 3) {
+#endif
+        const char *extensions;
+        const char *loc;
+        const char *terminator;
+        extensions = exts;
+        if(extensions == NULL || ext == NULL) {
+            return 0;
+        }
+
+        while(1) {
+            loc = strstr(extensions, ext);
+            if(loc == NULL) {
+                return 0;
+            }
+
+            terminator = loc + strlen(ext);
+            if((loc == extensions || *(loc - 1) == ' ') &&
+                (*terminator == ' ' || *terminator == '\0')) {
+                return 1;
+            }
+            extensions = terminator;
+        }
+#ifdef _GLAD_IS_SOME_NEW_VERSION
+    } else {
+        int index;
+        if(exts_i == NULL) return 0;
+        for(index = 0; index < num_exts_i; index++) {
+            const char *e = exts_i[index];
+
+            if(exts_i[index] != NULL && strcmp(e, ext) == 0) {
+                return 1;
+            }
+        }
+    }
+#endif
+
+    return 0;
+}
+int GLAD_GL_VERSION_1_0 = 0;
+int GLAD_GL_VERSION_1_1 = 0;
+int GLAD_GL_VERSION_1_2 = 0;
+int GLAD_GL_VERSION_1_3 = 0;
+int GLAD_GL_VERSION_1_4 = 0;
+int GLAD_GL_VERSION_1_5 = 0;
+int GLAD_GL_VERSION_2_0 = 0;
+int GLAD_GL_VERSION_2_1 = 0;
+int GLAD_GL_VERSION_3_0 = 0;
+int GLAD_GL_VERSION_3_1 = 0;
+int GLAD_GL_VERSION_3_2 = 0;
+int GLAD_GL_VERSION_3_3 = 0;
+int GLAD_GL_VERSION_4_0 = 0;
+int GLAD_GL_VERSION_4_1 = 0;
+int GLAD_GL_VERSION_4_2 = 0;
+int GLAD_GL_VERSION_4_3 = 0;
+int GLAD_GL_VERSION_4_4 = 0;
+int GLAD_GL_VERSION_4_5 = 0;
+int GLAD_GL_VERSION_4_6 = 0;
+PFNGLACCUMPROC glad_glAccum = NULL;
+PFNGLACTIVESHADERPROGRAMPROC glad_glActiveShaderProgram = NULL;
+PFNGLACTIVETEXTUREPROC glad_glActiveTexture = NULL;
+PFNGLALPHAFUNCPROC glad_glAlphaFunc = NULL;
+PFNGLARETEXTURESRESIDENTPROC glad_glAreTexturesResident = NULL;
+PFNGLARRAYELEMENTPROC glad_glArrayElement = NULL;
+PFNGLATTACHSHADERPROC glad_glAttachShader = NULL;
+PFNGLBEGINPROC glad_glBegin = NULL;
+PFNGLBEGINCONDITIONALRENDERPROC glad_glBeginConditionalRender = NULL;
+PFNGLBEGINQUERYPROC glad_glBeginQuery = NULL;
+PFNGLBEGINQUERYINDEXEDPROC glad_glBeginQueryIndexed = NULL;
+PFNGLBEGINTRANSFORMFEEDBACKPROC glad_glBeginTransformFeedback = NULL;
+PFNGLBINDATTRIBLOCATIONPROC glad_glBindAttribLocation = NULL;
+PFNGLBINDBUFFERPROC glad_glBindBuffer = NULL;
+PFNGLBINDBUFFERBASEPROC glad_glBindBufferBase = NULL;
+PFNGLBINDBUFFERRANGEPROC glad_glBindBufferRange = NULL;
+PFNGLBINDBUFFERSBASEPROC glad_glBindBuffersBase = NULL;
+PFNGLBINDBUFFERSRANGEPROC glad_glBindBuffersRange = NULL;
+PFNGLBINDFRAGDATALOCATIONPROC glad_glBindFragDataLocation = NULL;
+PFNGLBINDFRAGDATALOCATIONINDEXEDPROC glad_glBindFragDataLocationIndexed = NULL;
+PFNGLBINDFRAMEBUFFERPROC glad_glBindFramebuffer = NULL;
+PFNGLBINDIMAGETEXTUREPROC glad_glBindImageTexture = NULL;
+PFNGLBINDIMAGETEXTURESPROC glad_glBindImageTextures = NULL;
+PFNGLBINDPROGRAMPIPELINEPROC glad_glBindProgramPipeline = NULL;
+PFNGLBINDRENDERBUFFERPROC glad_glBindRenderbuffer = NULL;
+PFNGLBINDSAMPLERPROC glad_glBindSampler = NULL;
+PFNGLBINDSAMPLERSPROC glad_glBindSamplers = NULL;
+PFNGLBINDTEXTUREPROC glad_glBindTexture = NULL;
+PFNGLBINDTEXTUREUNITPROC glad_glBindTextureUnit = NULL;
+PFNGLBINDTEXTURESPROC glad_glBindTextures = NULL;
+PFNGLBINDTRANSFORMFEEDBACKPROC glad_glBindTransformFeedback = NULL;
+PFNGLBINDVERTEXARRAYPROC glad_glBindVertexArray = NULL;
+PFNGLBINDVERTEXBUFFERPROC glad_glBindVertexBuffer = NULL;
+PFNGLBINDVERTEXBUFFERSPROC glad_glBindVertexBuffers = NULL;
+PFNGLBITMAPPROC glad_glBitmap = NULL;
+PFNGLBLENDCOLORPROC glad_glBlendColor = NULL;
+PFNGLBLENDEQUATIONPROC glad_glBlendEquation = NULL;
+PFNGLBLENDEQUATIONSEPARATEPROC glad_glBlendEquationSeparate = NULL;
+PFNGLBLENDEQUATIONSEPARATEIPROC glad_glBlendEquationSeparatei = NULL;
+PFNGLBLENDEQUATIONIPROC glad_glBlendEquationi = NULL;
+PFNGLBLENDFUNCPROC glad_glBlendFunc = NULL;
+PFNGLBLENDFUNCSEPARATEPROC glad_glBlendFuncSeparate = NULL;
+PFNGLBLENDFUNCSEPARATEIPROC glad_glBlendFuncSeparatei = NULL;
+PFNGLBLENDFUNCIPROC glad_glBlendFunci = NULL;
+PFNGLBLITFRAMEBUFFERPROC glad_glBlitFramebuffer = NULL;
+PFNGLBLITNAMEDFRAMEBUFFERPROC glad_glBlitNamedFramebuffer = NULL;
+PFNGLBUFFERDATAPROC glad_glBufferData = NULL;
+PFNGLBUFFERSTORAGEPROC glad_glBufferStorage = NULL;
+PFNGLBUFFERSUBDATAPROC glad_glBufferSubData = NULL;
+PFNGLCALLLISTPROC glad_glCallList = NULL;
+PFNGLCALLLISTSPROC glad_glCallLists = NULL;
+PFNGLCHECKFRAMEBUFFERSTATUSPROC glad_glCheckFramebufferStatus = NULL;
+PFNGLCHECKNAMEDFRAMEBUFFERSTATUSPROC glad_glCheckNamedFramebufferStatus = NULL;
+PFNGLCLAMPCOLORPROC glad_glClampColor = NULL;
+PFNGLCLEARPROC glad_glClear = NULL;
+PFNGLCLEARACCUMPROC glad_glClearAccum = NULL;
+PFNGLCLEARBUFFERDATAPROC glad_glClearBufferData = NULL;
+PFNGLCLEARBUFFERSUBDATAPROC glad_glClearBufferSubData = NULL;
+PFNGLCLEARBUFFERFIPROC glad_glClearBufferfi = NULL;
+PFNGLCLEARBUFFERFVPROC glad_glClearBufferfv = NULL;
+PFNGLCLEARBUFFERIVPROC glad_glClearBufferiv = NULL;
+PFNGLCLEARBUFFERUIVPROC glad_glClearBufferuiv = NULL;
+PFNGLCLEARCOLORPROC glad_glClearColor = NULL;
+PFNGLCLEARDEPTHPROC glad_glClearDepth = NULL;
+PFNGLCLEARDEPTHFPROC glad_glClearDepthf = NULL;
+PFNGLCLEARINDEXPROC glad_glClearIndex = NULL;
+PFNGLCLEARNAMEDBUFFERDATAPROC glad_glClearNamedBufferData = NULL;
+PFNGLCLEARNAMEDBUFFERSUBDATAPROC glad_glClearNamedBufferSubData = NULL;
+PFNGLCLEARNAMEDFRAMEBUFFERFIPROC glad_glClearNamedFramebufferfi = NULL;
+PFNGLCLEARNAMEDFRAMEBUFFERFVPROC glad_glClearNamedFramebufferfv = NULL;
+PFNGLCLEARNAMEDFRAMEBUFFERIVPROC glad_glClearNamedFramebufferiv = NULL;
+PFNGLCLEARNAMEDFRAMEBUFFERUIVPROC glad_glClearNamedFramebufferuiv = NULL;
+PFNGLCLEARSTENCILPROC glad_glClearStencil = NULL;
+PFNGLCLEARTEXIMAGEPROC glad_glClearTexImage = NULL;
+PFNGLCLEARTEXSUBIMAGEPROC glad_glClearTexSubImage = NULL;
+PFNGLCLIENTACTIVETEXTUREPROC glad_glClientActiveTexture = NULL;
+PFNGLCLIENTWAITSYNCPROC glad_glClientWaitSync = NULL;
+PFNGLCLIPCONTROLPROC glad_glClipControl = NULL;
+PFNGLCLIPPLANEPROC glad_glClipPlane = NULL;
+PFNGLCOLOR3BPROC glad_glColor3b = NULL;
+PFNGLCOLOR3BVPROC glad_glColor3bv = NULL;
+PFNGLCOLOR3DPROC glad_glColor3d = NULL;
+PFNGLCOLOR3DVPROC glad_glColor3dv = NULL;
+PFNGLCOLOR3FPROC glad_glColor3f = NULL;
+PFNGLCOLOR3FVPROC glad_glColor3fv = NULL;
+PFNGLCOLOR3IPROC glad_glColor3i = NULL;
+PFNGLCOLOR3IVPROC glad_glColor3iv = NULL;
+PFNGLCOLOR3SPROC glad_glColor3s = NULL;
+PFNGLCOLOR3SVPROC glad_glColor3sv = NULL;
+PFNGLCOLOR3UBPROC glad_glColor3ub = NULL;
+PFNGLCOLOR3UBVPROC glad_glColor3ubv = NULL;
+PFNGLCOLOR3UIPROC glad_glColor3ui = NULL;
+PFNGLCOLOR3UIVPROC glad_glColor3uiv = NULL;
+PFNGLCOLOR3USPROC glad_glColor3us = NULL;
+PFNGLCOLOR3USVPROC glad_glColor3usv = NULL;
+PFNGLCOLOR4BPROC glad_glColor4b = NULL;
+PFNGLCOLOR4BVPROC glad_glColor4bv = NULL;
+PFNGLCOLOR4DPROC glad_glColor4d = NULL;
+PFNGLCOLOR4DVPROC glad_glColor4dv = NULL;
+PFNGLCOLOR4FPROC glad_glColor4f = NULL;
+PFNGLCOLOR4FVPROC glad_glColor4fv = NULL;
+PFNGLCOLOR4IPROC glad_glColor4i = NULL;
+PFNGLCOLOR4IVPROC glad_glColor4iv = NULL;
+PFNGLCOLOR4SPROC glad_glColor4s = NULL;
+PFNGLCOLOR4SVPROC glad_glColor4sv = NULL;
+PFNGLCOLOR4UBPROC glad_glColor4ub = NULL;
+PFNGLCOLOR4UBVPROC glad_glColor4ubv = NULL;
+PFNGLCOLOR4UIPROC glad_glColor4ui = NULL;
+PFNGLCOLOR4UIVPROC glad_glColor4uiv = NULL;
+PFNGLCOLOR4USPROC glad_glColor4us = NULL;
+PFNGLCOLOR4USVPROC glad_glColor4usv = NULL;
+PFNGLCOLORMASKPROC glad_glColorMask = NULL;
+PFNGLCOLORMASKIPROC glad_glColorMaski = NULL;
+PFNGLCOLORMATERIALPROC glad_glColorMaterial = NULL;
+PFNGLCOLORP3UIPROC glad_glColorP3ui = NULL;
+PFNGLCOLORP3UIVPROC glad_glColorP3uiv = NULL;
+PFNGLCOLORP4UIPROC glad_glColorP4ui = NULL;
+PFNGLCOLORP4UIVPROC glad_glColorP4uiv = NULL;
+PFNGLCOLORPOINTERPROC glad_glColorPointer = NULL;
+PFNGLCOMPILESHADERPROC glad_glCompileShader = NULL;
+PFNGLCOMPRESSEDTEXIMAGE1DPROC glad_glCompressedTexImage1D = NULL;
+PFNGLCOMPRESSEDTEXIMAGE2DPROC glad_glCompressedTexImage2D = NULL;
+PFNGLCOMPRESSEDTEXIMAGE3DPROC glad_glCompressedTexImage3D = NULL;
+PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC glad_glCompressedTexSubImage1D = NULL;
+PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC glad_glCompressedTexSubImage2D = NULL;
+PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC glad_glCompressedTexSubImage3D = NULL;
+PFNGLCOMPRESSEDTEXTURESUBIMAGE1DPROC glad_glCompressedTextureSubImage1D = NULL;
+PFNGLCOMPRESSEDTEXTURESUBIMAGE2DPROC glad_glCompressedTextureSubImage2D = NULL;
+PFNGLCOMPRESSEDTEXTURESUBIMAGE3DPROC glad_glCompressedTextureSubImage3D = NULL;
+PFNGLCOPYBUFFERSUBDATAPROC glad_glCopyBufferSubData = NULL;
+PFNGLCOPYIMAGESUBDATAPROC glad_glCopyImageSubData = NULL;
+PFNGLCOPYNAMEDBUFFERSUBDATAPROC glad_glCopyNamedBufferSubData = NULL;
+PFNGLCOPYPIXELSPROC glad_glCopyPixels = NULL;
+PFNGLCOPYTEXIMAGE1DPROC glad_glCopyTexImage1D = NULL;
+PFNGLCOPYTEXIMAGE2DPROC glad_glCopyTexImage2D = NULL;
+PFNGLCOPYTEXSUBIMAGE1DPROC glad_glCopyTexSubImage1D = NULL;
+PFNGLCOPYTEXSUBIMAGE2DPROC glad_glCopyTexSubImage2D = NULL;
+PFNGLCOPYTEXSUBIMAGE3DPROC glad_glCopyTexSubImage3D = NULL;
+PFNGLCOPYTEXTURESUBIMAGE1DPROC glad_glCopyTextureSubImage1D = NULL;
+PFNGLCOPYTEXTURESUBIMAGE2DPROC glad_glCopyTextureSubImage2D = NULL;
+PFNGLCOPYTEXTURESUBIMAGE3DPROC glad_glCopyTextureSubImage3D = NULL;
+PFNGLCREATEBUFFERSPROC glad_glCreateBuffers = NULL;
+PFNGLCREATEFRAMEBUFFERSPROC glad_glCreateFramebuffers = NULL;
+PFNGLCREATEPROGRAMPROC glad_glCreateProgram = NULL;
+PFNGLCREATEPROGRAMPIPELINESPROC glad_glCreateProgramPipelines = NULL;
+PFNGLCREATEQUERIESPROC glad_glCreateQueries = NULL;
+PFNGLCREATERENDERBUFFERSPROC glad_glCreateRenderbuffers = NULL;
+PFNGLCREATESAMPLERSPROC glad_glCreateSamplers = NULL;
+PFNGLCREATESHADERPROC glad_glCreateShader = NULL;
+PFNGLCREATESHADERPROGRAMVPROC glad_glCreateShaderProgramv = NULL;
+PFNGLCREATETEXTURESPROC glad_glCreateTextures = NULL;
+PFNGLCREATETRANSFORMFEEDBACKSPROC glad_glCreateTransformFeedbacks = NULL;
+PFNGLCREATEVERTEXARRAYSPROC glad_glCreateVertexArrays = NULL;
+PFNGLCULLFACEPROC glad_glCullFace = NULL;
+PFNGLDEBUGMESSAGECALLBACKPROC glad_glDebugMessageCallback = NULL;
+PFNGLDEBUGMESSAGECONTROLPROC glad_glDebugMessageControl = NULL;
+PFNGLDEBUGMESSAGEINSERTPROC glad_glDebugMessageInsert = NULL;
+PFNGLDELETEBUFFERSPROC glad_glDeleteBuffers = NULL;
+PFNGLDELETEFRAMEBUFFERSPROC glad_glDeleteFramebuffers = NULL;
+PFNGLDELETELISTSPROC glad_glDeleteLists = NULL;
+PFNGLDELETEPROGRAMPROC glad_glDeleteProgram = NULL;
+PFNGLDELETEPROGRAMPIPELINESPROC glad_glDeleteProgramPipelines = NULL;
+PFNGLDELETEQUERIESPROC glad_glDeleteQueries = NULL;
+PFNGLDELETERENDERBUFFERSPROC glad_glDeleteRenderbuffers = NULL;
+PFNGLDELETESAMPLERSPROC glad_glDeleteSamplers = NULL;
+PFNGLDELETESHADERPROC glad_glDeleteShader = NULL;
+PFNGLDELETESYNCPROC glad_glDeleteSync = NULL;
+PFNGLDELETETEXTURESPROC glad_glDeleteTextures = NULL;
+PFNGLDELETETRANSFORMFEEDBACKSPROC glad_glDeleteTransformFeedbacks = NULL;
+PFNGLDELETEVERTEXARRAYSPROC glad_glDeleteVertexArrays = NULL;
+PFNGLDEPTHFUNCPROC glad_glDepthFunc = NULL;
+PFNGLDEPTHMASKPROC glad_glDepthMask = NULL;
+PFNGLDEPTHRANGEPROC glad_glDepthRange = NULL;
+PFNGLDEPTHRANGEARRAYVPROC glad_glDepthRangeArrayv = NULL;
+PFNGLDEPTHRANGEINDEXEDPROC glad_glDepthRangeIndexed = NULL;
+PFNGLDEPTHRANGEFPROC glad_glDepthRangef = NULL;
+PFNGLDETACHSHADERPROC glad_glDetachShader = NULL;
+PFNGLDISABLEPROC glad_glDisable = NULL;
+PFNGLDISABLECLIENTSTATEPROC glad_glDisableClientState = NULL;
+PFNGLDISABLEVERTEXARRAYATTRIBPROC glad_glDisableVertexArrayAttrib = NULL;
+PFNGLDISABLEVERTEXATTRIBARRAYPROC glad_glDisableVertexAttribArray = NULL;
+PFNGLDISABLEIPROC glad_glDisablei = NULL;
+PFNGLDISPATCHCOMPUTEPROC glad_glDispatchCompute = NULL;
+PFNGLDISPATCHCOMPUTEINDIRECTPROC glad_glDispatchComputeIndirect = NULL;
+PFNGLDRAWARRAYSPROC glad_glDrawArrays = NULL;
+PFNGLDRAWARRAYSINDIRECTPROC glad_glDrawArraysIndirect = NULL;
+PFNGLDRAWARRAYSINSTANCEDPROC glad_glDrawArraysInstanced = NULL;
+PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEPROC glad_glDrawArraysInstancedBaseInstance = NULL;
+PFNGLDRAWBUFFERPROC glad_glDrawBuffer = NULL;
+PFNGLDRAWBUFFERSPROC glad_glDrawBuffers = NULL;
+PFNGLDRAWELEMENTSPROC glad_glDrawElements = NULL;
+PFNGLDRAWELEMENTSBASEVERTEXPROC glad_glDrawElementsBaseVertex = NULL;
+PFNGLDRAWELEMENTSINDIRECTPROC glad_glDrawElementsIndirect = NULL;
+PFNGLDRAWELEMENTSINSTANCEDPROC glad_glDrawElementsInstanced = NULL;
+PFNGLDRAWELEMENTSINSTANCEDBASEINSTANCEPROC glad_glDrawElementsInstancedBaseInstance = NULL;
+PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC glad_glDrawElementsInstancedBaseVertex = NULL;
+PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC glad_glDrawElementsInstancedBaseVertexBaseInstance = NULL;
+PFNGLDRAWPIXELSPROC glad_glDrawPixels = NULL;
+PFNGLDRAWRANGEELEMENTSPROC glad_glDrawRangeElements = NULL;
+PFNGLDRAWRANGEELEMENTSBASEVERTEXPROC glad_glDrawRangeElementsBaseVertex = NULL;
+PFNGLDRAWTRANSFORMFEEDBACKPROC glad_glDrawTransformFeedback = NULL;
+PFNGLDRAWTRANSFORMFEEDBACKINSTANCEDPROC glad_glDrawTransformFeedbackInstanced = NULL;
+PFNGLDRAWTRANSFORMFEEDBACKSTREAMPROC glad_glDrawTransformFeedbackStream = NULL;
+PFNGLDRAWTRANSFORMFEEDBACKSTREAMINSTANCEDPROC glad_glDrawTransformFeedbackStreamInstanced = NULL;
+PFNGLEDGEFLAGPROC glad_glEdgeFlag = NULL;
+PFNGLEDGEFLAGPOINTERPROC glad_glEdgeFlagPointer = NULL;
+PFNGLEDGEFLAGVPROC glad_glEdgeFlagv = NULL;
+PFNGLENABLEPROC glad_glEnable = NULL;
+PFNGLENABLECLIENTSTATEPROC glad_glEnableClientState = NULL;
+PFNGLENABLEVERTEXARRAYATTRIBPROC glad_glEnableVertexArrayAttrib = NULL;
+PFNGLENABLEVERTEXATTRIBARRAYPROC glad_glEnableVertexAttribArray = NULL;
+PFNGLENABLEIPROC glad_glEnablei = NULL;
+PFNGLENDPROC glad_glEnd = NULL;
+PFNGLENDCONDITIONALRENDERPROC glad_glEndConditionalRender = NULL;
+PFNGLENDLISTPROC glad_glEndList = NULL;
+PFNGLENDQUERYPROC glad_glEndQuery = NULL;
+PFNGLENDQUERYINDEXEDPROC glad_glEndQueryIndexed = NULL;
+PFNGLENDTRANSFORMFEEDBACKPROC glad_glEndTransformFeedback = NULL;
+PFNGLEVALCOORD1DPROC glad_glEvalCoord1d = NULL;
+PFNGLEVALCOORD1DVPROC glad_glEvalCoord1dv = NULL;
+PFNGLEVALCOORD1FPROC glad_glEvalCoord1f = NULL;
+PFNGLEVALCOORD1FVPROC glad_glEvalCoord1fv = NULL;
+PFNGLEVALCOORD2DPROC glad_glEvalCoord2d = NULL;
+PFNGLEVALCOORD2DVPROC glad_glEvalCoord2dv = NULL;
+PFNGLEVALCOORD2FPROC glad_glEvalCoord2f = NULL;
+PFNGLEVALCOORD2FVPROC glad_glEvalCoord2fv = NULL;
+PFNGLEVALMESH1PROC glad_glEvalMesh1 = NULL;
+PFNGLEVALMESH2PROC glad_glEvalMesh2 = NULL;
+PFNGLEVALPOINT1PROC glad_glEvalPoint1 = NULL;
+PFNGLEVALPOINT2PROC glad_glEvalPoint2 = NULL;
+PFNGLFEEDBACKBUFFERPROC glad_glFeedbackBuffer = NULL;
+PFNGLFENCESYNCPROC glad_glFenceSync = NULL;
+PFNGLFINISHPROC glad_glFinish = NULL;
+PFNGLFLUSHPROC glad_glFlush = NULL;
+PFNGLFLUSHMAPPEDBUFFERRANGEPROC glad_glFlushMappedBufferRange = NULL;
+PFNGLFLUSHMAPPEDNAMEDBUFFERRANGEPROC glad_glFlushMappedNamedBufferRange = NULL;
+PFNGLFOGCOORDPOINTERPROC glad_glFogCoordPointer = NULL;
+PFNGLFOGCOORDDPROC glad_glFogCoordd = NULL;
+PFNGLFOGCOORDDVPROC glad_glFogCoorddv = NULL;
+PFNGLFOGCOORDFPROC glad_glFogCoordf = NULL;
+PFNGLFOGCOORDFVPROC glad_glFogCoordfv = NULL;
+PFNGLFOGFPROC glad_glFogf = NULL;
+PFNGLFOGFVPROC glad_glFogfv = NULL;
+PFNGLFOGIPROC glad_glFogi = NULL;
+PFNGLFOGIVPROC glad_glFogiv = NULL;
+PFNGLFRAMEBUFFERPARAMETERIPROC glad_glFramebufferParameteri = NULL;
+PFNGLFRAMEBUFFERRENDERBUFFERPROC glad_glFramebufferRenderbuffer = NULL;
+PFNGLFRAMEBUFFERTEXTUREPROC glad_glFramebufferTexture = NULL;
+PFNGLFRAMEBUFFERTEXTURE1DPROC glad_glFramebufferTexture1D = NULL;
+PFNGLFRAMEBUFFERTEXTURE2DPROC glad_glFramebufferTexture2D = NULL;
+PFNGLFRAMEBUFFERTEXTURE3DPROC glad_glFramebufferTexture3D = NULL;
+PFNGLFRAMEBUFFERTEXTURELAYERPROC glad_glFramebufferTextureLayer = NULL;
+PFNGLFRONTFACEPROC glad_glFrontFace = NULL;
+PFNGLFRUSTUMPROC glad_glFrustum = NULL;
+PFNGLGENBUFFERSPROC glad_glGenBuffers = NULL;
+PFNGLGENFRAMEBUFFERSPROC glad_glGenFramebuffers = NULL;
+PFNGLGENLISTSPROC glad_glGenLists = NULL;
+PFNGLGENPROGRAMPIPELINESPROC glad_glGenProgramPipelines = NULL;
+PFNGLGENQUERIESPROC glad_glGenQueries = NULL;
+PFNGLGENRENDERBUFFERSPROC glad_glGenRenderbuffers = NULL;
+PFNGLGENSAMPLERSPROC glad_glGenSamplers = NULL;
+PFNGLGENTEXTURESPROC glad_glGenTextures = NULL;
+PFNGLGENTRANSFORMFEEDBACKSPROC glad_glGenTransformFeedbacks = NULL;
+PFNGLGENVERTEXARRAYSPROC glad_glGenVertexArrays = NULL;
+PFNGLGENERATEMIPMAPPROC glad_glGenerateMipmap = NULL;
+PFNGLGENERATETEXTUREMIPMAPPROC glad_glGenerateTextureMipmap = NULL;
+PFNGLGETACTIVEATOMICCOUNTERBUFFERIVPROC glad_glGetActiveAtomicCounterBufferiv = NULL;
+PFNGLGETACTIVEATTRIBPROC glad_glGetActiveAttrib = NULL;
+PFNGLGETACTIVESUBROUTINENAMEPROC glad_glGetActiveSubroutineName = NULL;
+PFNGLGETACTIVESUBROUTINEUNIFORMNAMEPROC glad_glGetActiveSubroutineUniformName = NULL;
+PFNGLGETACTIVESUBROUTINEUNIFORMIVPROC glad_glGetActiveSubroutineUniformiv = NULL;
+PFNGLGETACTIVEUNIFORMPROC glad_glGetActiveUniform = NULL;
+PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC glad_glGetActiveUniformBlockName = NULL;
+PFNGLGETACTIVEUNIFORMBLOCKIVPROC glad_glGetActiveUniformBlockiv = NULL;
+PFNGLGETACTIVEUNIFORMNAMEPROC glad_glGetActiveUniformName = NULL;
+PFNGLGETACTIVEUNIFORMSIVPROC glad_glGetActiveUniformsiv = NULL;
+PFNGLGETATTACHEDSHADERSPROC glad_glGetAttachedShaders = NULL;
+PFNGLGETATTRIBLOCATIONPROC glad_glGetAttribLocation = NULL;
+PFNGLGETBOOLEANI_VPROC glad_glGetBooleani_v = NULL;
+PFNGLGETBOOLEANVPROC glad_glGetBooleanv = NULL;
+PFNGLGETBUFFERPARAMETERI64VPROC glad_glGetBufferParameteri64v = NULL;
+PFNGLGETBUFFERPARAMETERIVPROC glad_glGetBufferParameteriv = NULL;
+PFNGLGETBUFFERPOINTERVPROC glad_glGetBufferPointerv = NULL;
+PFNGLGETBUFFERSUBDATAPROC glad_glGetBufferSubData = NULL;
+PFNGLGETCLIPPLANEPROC glad_glGetClipPlane = NULL;
+PFNGLGETCOMPRESSEDTEXIMAGEPROC glad_glGetCompressedTexImage = NULL;
+PFNGLGETCOMPRESSEDTEXTUREIMAGEPROC glad_glGetCompressedTextureImage = NULL;
+PFNGLGETCOMPRESSEDTEXTURESUBIMAGEPROC glad_glGetCompressedTextureSubImage = NULL;
+PFNGLGETDEBUGMESSAGELOGPROC glad_glGetDebugMessageLog = NULL;
+PFNGLGETDOUBLEI_VPROC glad_glGetDoublei_v = NULL;
+PFNGLGETDOUBLEVPROC glad_glGetDoublev = NULL;
+PFNGLGETERRORPROC glad_glGetError = NULL;
+PFNGLGETFLOATI_VPROC glad_glGetFloati_v = NULL;
+PFNGLGETFLOATVPROC glad_glGetFloatv = NULL;
+PFNGLGETFRAGDATAINDEXPROC glad_glGetFragDataIndex = NULL;
+PFNGLGETFRAGDATALOCATIONPROC glad_glGetFragDataLocation = NULL;
+PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glad_glGetFramebufferAttachmentParameteriv = NULL;
+PFNGLGETFRAMEBUFFERPARAMETERIVPROC glad_glGetFramebufferParameteriv = NULL;
+PFNGLGETGRAPHICSRESETSTATUSPROC glad_glGetGraphicsResetStatus = NULL;
+PFNGLGETINTEGER64I_VPROC glad_glGetInteger64i_v = NULL;
+PFNGLGETINTEGER64VPROC glad_glGetInteger64v = NULL;
+PFNGLGETINTEGERI_VPROC glad_glGetIntegeri_v = NULL;
+PFNGLGETINTEGERVPROC glad_glGetIntegerv = NULL;
+PFNGLGETINTERNALFORMATI64VPROC glad_glGetInternalformati64v = NULL;
+PFNGLGETINTERNALFORMATIVPROC glad_glGetInternalformativ = NULL;
+PFNGLGETLIGHTFVPROC glad_glGetLightfv = NULL;
+PFNGLGETLIGHTIVPROC glad_glGetLightiv = NULL;
+PFNGLGETMAPDVPROC glad_glGetMapdv = NULL;
+PFNGLGETMAPFVPROC glad_glGetMapfv = NULL;
+PFNGLGETMAPIVPROC glad_glGetMapiv = NULL;
+PFNGLGETMATERIALFVPROC glad_glGetMaterialfv = NULL;
+PFNGLGETMATERIALIVPROC glad_glGetMaterialiv = NULL;
+PFNGLGETMULTISAMPLEFVPROC glad_glGetMultisamplefv = NULL;
+PFNGLGETNAMEDBUFFERPARAMETERI64VPROC glad_glGetNamedBufferParameteri64v = NULL;
+PFNGLGETNAMEDBUFFERPARAMETERIVPROC glad_glGetNamedBufferParameteriv = NULL;
+PFNGLGETNAMEDBUFFERPOINTERVPROC glad_glGetNamedBufferPointerv = NULL;
+PFNGLGETNAMEDBUFFERSUBDATAPROC glad_glGetNamedBufferSubData = NULL;
+PFNGLGETNAMEDFRAMEBUFFERATTACHMENTPARAMETERIVPROC glad_glGetNamedFramebufferAttachmentParameteriv = NULL;
+PFNGLGETNAMEDFRAMEBUFFERPARAMETERIVPROC glad_glGetNamedFramebufferParameteriv = NULL;
+PFNGLGETNAMEDRENDERBUFFERPARAMETERIVPROC glad_glGetNamedRenderbufferParameteriv = NULL;
+PFNGLGETOBJECTLABELPROC glad_glGetObjectLabel = NULL;
+PFNGLGETOBJECTPTRLABELPROC glad_glGetObjectPtrLabel = NULL;
+PFNGLGETPIXELMAPFVPROC glad_glGetPixelMapfv = NULL;
+PFNGLGETPIXELMAPUIVPROC glad_glGetPixelMapuiv = NULL;
+PFNGLGETPIXELMAPUSVPROC glad_glGetPixelMapusv = NULL;
+PFNGLGETPOINTERVPROC glad_glGetPointerv = NULL;
+PFNGLGETPOLYGONSTIPPLEPROC glad_glGetPolygonStipple = NULL;
+PFNGLGETPROGRAMBINARYPROC glad_glGetProgramBinary = NULL;
+PFNGLGETPROGRAMINFOLOGPROC glad_glGetProgramInfoLog = NULL;
+PFNGLGETPROGRAMINTERFACEIVPROC glad_glGetProgramInterfaceiv = NULL;
+PFNGLGETPROGRAMPIPELINEINFOLOGPROC glad_glGetProgramPipelineInfoLog = NULL;
+PFNGLGETPROGRAMPIPELINEIVPROC glad_glGetProgramPipelineiv = NULL;
+PFNGLGETPROGRAMRESOURCEINDEXPROC glad_glGetProgramResourceIndex = NULL;
+PFNGLGETPROGRAMRESOURCELOCATIONPROC glad_glGetProgramResourceLocation = NULL;
+PFNGLGETPROGRAMRESOURCELOCATIONINDEXPROC glad_glGetProgramResourceLocationIndex = NULL;
+PFNGLGETPROGRAMRESOURCENAMEPROC glad_glGetProgramResourceName = NULL;
+PFNGLGETPROGRAMRESOURCEIVPROC glad_glGetProgramResourceiv = NULL;
+PFNGLGETPROGRAMSTAGEIVPROC glad_glGetProgramStageiv = NULL;
+PFNGLGETPROGRAMIVPROC glad_glGetProgramiv = NULL;
+PFNGLGETQUERYBUFFEROBJECTI64VPROC glad_glGetQueryBufferObjecti64v = NULL;
+PFNGLGETQUERYBUFFEROBJECTIVPROC glad_glGetQueryBufferObjectiv = NULL;
+PFNGLGETQUERYBUFFEROBJECTUI64VPROC glad_glGetQueryBufferObjectui64v = NULL;
+PFNGLGETQUERYBUFFEROBJECTUIVPROC glad_glGetQueryBufferObjectuiv = NULL;
+PFNGLGETQUERYINDEXEDIVPROC glad_glGetQueryIndexediv = NULL;
+PFNGLGETQUERYOBJECTI64VPROC glad_glGetQueryObjecti64v = NULL;
+PFNGLGETQUERYOBJECTIVPROC glad_glGetQueryObjectiv = NULL;
+PFNGLGETQUERYOBJECTUI64VPROC glad_glGetQueryObjectui64v = NULL;
+PFNGLGETQUERYOBJECTUIVPROC glad_glGetQueryObjectuiv = NULL;
+PFNGLGETQUERYIVPROC glad_glGetQueryiv = NULL;
+PFNGLGETRENDERBUFFERPARAMETERIVPROC glad_glGetRenderbufferParameteriv = NULL;
+PFNGLGETSAMPLERPARAMETERIIVPROC glad_glGetSamplerParameterIiv = NULL;
+PFNGLGETSAMPLERPARAMETERIUIVPROC glad_glGetSamplerParameterIuiv = NULL;
+PFNGLGETSAMPLERPARAMETERFVPROC glad_glGetSamplerParameterfv = NULL;
+PFNGLGETSAMPLERPARAMETERIVPROC glad_glGetSamplerParameteriv = NULL;
+PFNGLGETSHADERINFOLOGPROC glad_glGetShaderInfoLog = NULL;
+PFNGLGETSHADERPRECISIONFORMATPROC glad_glGetShaderPrecisionFormat = NULL;
+PFNGLGETSHADERSOURCEPROC glad_glGetShaderSource = NULL;
+PFNGLGETSHADERIVPROC glad_glGetShaderiv = NULL;
+PFNGLGETSTRINGPROC glad_glGetString = NULL;
+PFNGLGETSTRINGIPROC glad_glGetStringi = NULL;
+PFNGLGETSUBROUTINEINDEXPROC glad_glGetSubroutineIndex = NULL;
+PFNGLGETSUBROUTINEUNIFORMLOCATIONPROC glad_glGetSubroutineUniformLocation = NULL;
+PFNGLGETSYNCIVPROC glad_glGetSynciv = NULL;
+PFNGLGETTEXENVFVPROC glad_glGetTexEnvfv = NULL;
+PFNGLGETTEXENVIVPROC glad_glGetTexEnviv = NULL;
+PFNGLGETTEXGENDVPROC glad_glGetTexGendv = NULL;
+PFNGLGETTEXGENFVPROC glad_glGetTexGenfv = NULL;
+PFNGLGETTEXGENIVPROC glad_glGetTexGeniv = NULL;
+PFNGLGETTEXIMAGEPROC glad_glGetTexImage = NULL;
+PFNGLGETTEXLEVELPARAMETERFVPROC glad_glGetTexLevelParameterfv = NULL;
+PFNGLGETTEXLEVELPARAMETERIVPROC glad_glGetTexLevelParameteriv = NULL;
+PFNGLGETTEXPARAMETERIIVPROC glad_glGetTexParameterIiv = NULL;
+PFNGLGETTEXPARAMETERIUIVPROC glad_glGetTexParameterIuiv = NULL;
+PFNGLGETTEXPARAMETERFVPROC glad_glGetTexParameterfv = NULL;
+PFNGLGETTEXPARAMETERIVPROC glad_glGetTexParameteriv = NULL;
+PFNGLGETTEXTUREIMAGEPROC glad_glGetTextureImage = NULL;
+PFNGLGETTEXTURELEVELPARAMETERFVPROC glad_glGetTextureLevelParameterfv = NULL;
+PFNGLGETTEXTURELEVELPARAMETERIVPROC glad_glGetTextureLevelParameteriv = NULL;
+PFNGLGETTEXTUREPARAMETERIIVPROC glad_glGetTextureParameterIiv = NULL;
+PFNGLGETTEXTUREPARAMETERIUIVPROC glad_glGetTextureParameterIuiv = NULL;
+PFNGLGETTEXTUREPARAMETERFVPROC glad_glGetTextureParameterfv = NULL;
+PFNGLGETTEXTUREPARAMETERIVPROC glad_glGetTextureParameteriv = NULL;
+PFNGLGETTEXTURESUBIMAGEPROC glad_glGetTextureSubImage = NULL;
+PFNGLGETTRANSFORMFEEDBACKVARYINGPROC glad_glGetTransformFeedbackVarying = NULL;
+PFNGLGETTRANSFORMFEEDBACKI64_VPROC glad_glGetTransformFeedbacki64_v = NULL;
+PFNGLGETTRANSFORMFEEDBACKI_VPROC glad_glGetTransformFeedbacki_v = NULL;
+PFNGLGETTRANSFORMFEEDBACKIVPROC glad_glGetTransformFeedbackiv = NULL;
+PFNGLGETUNIFORMBLOCKINDEXPROC glad_glGetUniformBlockIndex = NULL;
+PFNGLGETUNIFORMINDICESPROC glad_glGetUniformIndices = NULL;
+PFNGLGETUNIFORMLOCATIONPROC glad_glGetUniformLocation = NULL;
+PFNGLGETUNIFORMSUBROUTINEUIVPROC glad_glGetUniformSubroutineuiv = NULL;
+PFNGLGETUNIFORMDVPROC glad_glGetUniformdv = NULL;
+PFNGLGETUNIFORMFVPROC glad_glGetUniformfv = NULL;
+PFNGLGETUNIFORMIVPROC glad_glGetUniformiv = NULL;
+PFNGLGETUNIFORMUIVPROC glad_glGetUniformuiv = NULL;
+PFNGLGETVERTEXARRAYINDEXED64IVPROC glad_glGetVertexArrayIndexed64iv = NULL;
+PFNGLGETVERTEXARRAYINDEXEDIVPROC glad_glGetVertexArrayIndexediv = NULL;
+PFNGLGETVERTEXARRAYIVPROC glad_glGetVertexArrayiv = NULL;
+PFNGLGETVERTEXATTRIBIIVPROC glad_glGetVertexAttribIiv = NULL;
+PFNGLGETVERTEXATTRIBIUIVPROC glad_glGetVertexAttribIuiv = NULL;
+PFNGLGETVERTEXATTRIBLDVPROC glad_glGetVertexAttribLdv = NULL;
+PFNGLGETVERTEXATTRIBPOINTERVPROC glad_glGetVertexAttribPointerv = NULL;
+PFNGLGETVERTEXATTRIBDVPROC glad_glGetVertexAttribdv = NULL;
+PFNGLGETVERTEXATTRIBFVPROC glad_glGetVertexAttribfv = NULL;
+PFNGLGETVERTEXATTRIBIVPROC glad_glGetVertexAttribiv = NULL;
+PFNGLGETNCOLORTABLEPROC glad_glGetnColorTable = NULL;
+PFNGLGETNCOMPRESSEDTEXIMAGEPROC glad_glGetnCompressedTexImage = NULL;
+PFNGLGETNCONVOLUTIONFILTERPROC glad_glGetnConvolutionFilter = NULL;
+PFNGLGETNHISTOGRAMPROC glad_glGetnHistogram = NULL;
+PFNGLGETNMAPDVPROC glad_glGetnMapdv = NULL;
+PFNGLGETNMAPFVPROC glad_glGetnMapfv = NULL;
+PFNGLGETNMAPIVPROC glad_glGetnMapiv = NULL;
+PFNGLGETNMINMAXPROC glad_glGetnMinmax = NULL;
+PFNGLGETNPIXELMAPFVPROC glad_glGetnPixelMapfv = NULL;
+PFNGLGETNPIXELMAPUIVPROC glad_glGetnPixelMapuiv = NULL;
+PFNGLGETNPIXELMAPUSVPROC glad_glGetnPixelMapusv = NULL;
+PFNGLGETNPOLYGONSTIPPLEPROC glad_glGetnPolygonStipple = NULL;
+PFNGLGETNSEPARABLEFILTERPROC glad_glGetnSeparableFilter = NULL;
+PFNGLGETNTEXIMAGEPROC glad_glGetnTexImage = NULL;
+PFNGLGETNUNIFORMDVPROC glad_glGetnUniformdv = NULL;
+PFNGLGETNUNIFORMFVPROC glad_glGetnUniformfv = NULL;
+PFNGLGETNUNIFORMIVPROC glad_glGetnUniformiv = NULL;
+PFNGLGETNUNIFORMUIVPROC glad_glGetnUniformuiv = NULL;
+PFNGLHINTPROC glad_glHint = NULL;
+PFNGLINDEXMASKPROC glad_glIndexMask = NULL;
+PFNGLINDEXPOINTERPROC glad_glIndexPointer = NULL;
+PFNGLINDEXDPROC glad_glIndexd = NULL;
+PFNGLINDEXDVPROC glad_glIndexdv = NULL;
+PFNGLINDEXFPROC glad_glIndexf = NULL;
+PFNGLINDEXFVPROC glad_glIndexfv = NULL;
+PFNGLINDEXIPROC glad_glIndexi = NULL;
+PFNGLINDEXIVPROC glad_glIndexiv = NULL;
+PFNGLINDEXSPROC glad_glIndexs = NULL;
+PFNGLINDEXSVPROC glad_glIndexsv = NULL;
+PFNGLINDEXUBPROC glad_glIndexub = NULL;
+PFNGLINDEXUBVPROC glad_glIndexubv = NULL;
+PFNGLINITNAMESPROC glad_glInitNames = NULL;
+PFNGLINTERLEAVEDARRAYSPROC glad_glInterleavedArrays = NULL;
+PFNGLINVALIDATEBUFFERDATAPROC glad_glInvalidateBufferData = NULL;
+PFNGLINVALIDATEBUFFERSUBDATAPROC glad_glInvalidateBufferSubData = NULL;
+PFNGLINVALIDATEFRAMEBUFFERPROC glad_glInvalidateFramebuffer = NULL;
+PFNGLINVALIDATENAMEDFRAMEBUFFERDATAPROC glad_glInvalidateNamedFramebufferData = NULL;
+PFNGLINVALIDATENAMEDFRAMEBUFFERSUBDATAPROC glad_glInvalidateNamedFramebufferSubData = NULL;
+PFNGLINVALIDATESUBFRAMEBUFFERPROC glad_glInvalidateSubFramebuffer = NULL;
+PFNGLINVALIDATETEXIMAGEPROC glad_glInvalidateTexImage = NULL;
+PFNGLINVALIDATETEXSUBIMAGEPROC glad_glInvalidateTexSubImage = NULL;
+PFNGLISBUFFERPROC glad_glIsBuffer = NULL;
+PFNGLISENABLEDPROC glad_glIsEnabled = NULL;
+PFNGLISENABLEDIPROC glad_glIsEnabledi = NULL;
+PFNGLISFRAMEBUFFERPROC glad_glIsFramebuffer = NULL;
+PFNGLISLISTPROC glad_glIsList = NULL;
+PFNGLISPROGRAMPROC glad_glIsProgram = NULL;
+PFNGLISPROGRAMPIPELINEPROC glad_glIsProgramPipeline = NULL;
+PFNGLISQUERYPROC glad_glIsQuery = NULL;
+PFNGLISRENDERBUFFERPROC glad_glIsRenderbuffer = NULL;
+PFNGLISSAMPLERPROC glad_glIsSampler = NULL;
+PFNGLISSHADERPROC glad_glIsShader = NULL;
+PFNGLISSYNCPROC glad_glIsSync = NULL;
+PFNGLISTEXTUREPROC glad_glIsTexture = NULL;
+PFNGLISTRANSFORMFEEDBACKPROC glad_glIsTransformFeedback = NULL;
+PFNGLISVERTEXARRAYPROC glad_glIsVertexArray = NULL;
+PFNGLLIGHTMODELFPROC glad_glLightModelf = NULL;
+PFNGLLIGHTMODELFVPROC glad_glLightModelfv = NULL;
+PFNGLLIGHTMODELIPROC glad_glLightModeli = NULL;
+PFNGLLIGHTMODELIVPROC glad_glLightModeliv = NULL;
+PFNGLLIGHTFPROC glad_glLightf = NULL;
+PFNGLLIGHTFVPROC glad_glLightfv = NULL;
+PFNGLLIGHTIPROC glad_glLighti = NULL;
+PFNGLLIGHTIVPROC glad_glLightiv = NULL;
+PFNGLLINESTIPPLEPROC glad_glLineStipple = NULL;
+PFNGLLINEWIDTHPROC glad_glLineWidth = NULL;
+PFNGLLINKPROGRAMPROC glad_glLinkProgram = NULL;
+PFNGLLISTBASEPROC glad_glListBase = NULL;
+PFNGLLOADIDENTITYPROC glad_glLoadIdentity = NULL;
+PFNGLLOADMATRIXDPROC glad_glLoadMatrixd = NULL;
+PFNGLLOADMATRIXFPROC glad_glLoadMatrixf = NULL;
+PFNGLLOADNAMEPROC glad_glLoadName = NULL;
+PFNGLLOADTRANSPOSEMATRIXDPROC glad_glLoadTransposeMatrixd = NULL;
+PFNGLLOADTRANSPOSEMATRIXFPROC glad_glLoadTransposeMatrixf = NULL;
+PFNGLLOGICOPPROC glad_glLogicOp = NULL;
+PFNGLMAP1DPROC glad_glMap1d = NULL;
+PFNGLMAP1FPROC glad_glMap1f = NULL;
+PFNGLMAP2DPROC glad_glMap2d = NULL;
+PFNGLMAP2FPROC glad_glMap2f = NULL;
+PFNGLMAPBUFFERPROC glad_glMapBuffer = NULL;
+PFNGLMAPBUFFERRANGEPROC glad_glMapBufferRange = NULL;
+PFNGLMAPGRID1DPROC glad_glMapGrid1d = NULL;
+PFNGLMAPGRID1FPROC glad_glMapGrid1f = NULL;
+PFNGLMAPGRID2DPROC glad_glMapGrid2d = NULL;
+PFNGLMAPGRID2FPROC glad_glMapGrid2f = NULL;
+PFNGLMAPNAMEDBUFFERPROC glad_glMapNamedBuffer = NULL;
+PFNGLMAPNAMEDBUFFERRANGEPROC glad_glMapNamedBufferRange = NULL;
+PFNGLMATERIALFPROC glad_glMaterialf = NULL;
+PFNGLMATERIALFVPROC glad_glMaterialfv = NULL;
+PFNGLMATERIALIPROC glad_glMateriali = NULL;
+PFNGLMATERIALIVPROC glad_glMaterialiv = NULL;
+PFNGLMATRIXMODEPROC glad_glMatrixMode = NULL;
+PFNGLMEMORYBARRIERPROC glad_glMemoryBarrier = NULL;
+PFNGLMEMORYBARRIERBYREGIONPROC glad_glMemoryBarrierByRegion = NULL;
+PFNGLMINSAMPLESHADINGPROC glad_glMinSampleShading = NULL;
+PFNGLMULTMATRIXDPROC glad_glMultMatrixd = NULL;
+PFNGLMULTMATRIXFPROC glad_glMultMatrixf = NULL;
+PFNGLMULTTRANSPOSEMATRIXDPROC glad_glMultTransposeMatrixd = NULL;
+PFNGLMULTTRANSPOSEMATRIXFPROC glad_glMultTransposeMatrixf = NULL;
+PFNGLMULTIDRAWARRAYSPROC glad_glMultiDrawArrays = NULL;
+PFNGLMULTIDRAWARRAYSINDIRECTPROC glad_glMultiDrawArraysIndirect = NULL;
+PFNGLMULTIDRAWARRAYSINDIRECTCOUNTPROC glad_glMultiDrawArraysIndirectCount = NULL;
+PFNGLMULTIDRAWELEMENTSPROC glad_glMultiDrawElements = NULL;
+PFNGLMULTIDRAWELEMENTSBASEVERTEXPROC glad_glMultiDrawElementsBaseVertex = NULL;
+PFNGLMULTIDRAWELEMENTSINDIRECTPROC glad_glMultiDrawElementsIndirect = NULL;
+PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC glad_glMultiDrawElementsIndirectCount = NULL;
+PFNGLMULTITEXCOORD1DPROC glad_glMultiTexCoord1d = NULL;
+PFNGLMULTITEXCOORD1DVPROC glad_glMultiTexCoord1dv = NULL;
+PFNGLMULTITEXCOORD1FPROC glad_glMultiTexCoord1f = NULL;
+PFNGLMULTITEXCOORD1FVPROC glad_glMultiTexCoord1fv = NULL;
+PFNGLMULTITEXCOORD1IPROC glad_glMultiTexCoord1i = NULL;
+PFNGLMULTITEXCOORD1IVPROC glad_glMultiTexCoord1iv = NULL;
+PFNGLMULTITEXCOORD1SPROC glad_glMultiTexCoord1s = NULL;
+PFNGLMULTITEXCOORD1SVPROC glad_glMultiTexCoord1sv = NULL;
+PFNGLMULTITEXCOORD2DPROC glad_glMultiTexCoord2d = NULL;
+PFNGLMULTITEXCOORD2DVPROC glad_glMultiTexCoord2dv = NULL;
+PFNGLMULTITEXCOORD2FPROC glad_glMultiTexCoord2f = NULL;
+PFNGLMULTITEXCOORD2FVPROC glad_glMultiTexCoord2fv = NULL;
+PFNGLMULTITEXCOORD2IPROC glad_glMultiTexCoord2i = NULL;
+PFNGLMULTITEXCOORD2IVPROC glad_glMultiTexCoord2iv = NULL;
+PFNGLMULTITEXCOORD2SPROC glad_glMultiTexCoord2s = NULL;
+PFNGLMULTITEXCOORD2SVPROC glad_glMultiTexCoord2sv = NULL;
+PFNGLMULTITEXCOORD3DPROC glad_glMultiTexCoord3d = NULL;
+PFNGLMULTITEXCOORD3DVPROC glad_glMultiTexCoord3dv = NULL;
+PFNGLMULTITEXCOORD3FPROC glad_glMultiTexCoord3f = NULL;
+PFNGLMULTITEXCOORD3FVPROC glad_glMultiTexCoord3fv = NULL;
+PFNGLMULTITEXCOORD3IPROC glad_glMultiTexCoord3i = NULL;
+PFNGLMULTITEXCOORD3IVPROC glad_glMultiTexCoord3iv = NULL;
+PFNGLMULTITEXCOORD3SPROC glad_glMultiTexCoord3s = NULL;
+PFNGLMULTITEXCOORD3SVPROC glad_glMultiTexCoord3sv = NULL;
+PFNGLMULTITEXCOORD4DPROC glad_glMultiTexCoord4d = NULL;
+PFNGLMULTITEXCOORD4DVPROC glad_glMultiTexCoord4dv = NULL;
+PFNGLMULTITEXCOORD4FPROC glad_glMultiTexCoord4f = NULL;
+PFNGLMULTITEXCOORD4FVPROC glad_glMultiTexCoord4fv = NULL;
+PFNGLMULTITEXCOORD4IPROC glad_glMultiTexCoord4i = NULL;
+PFNGLMULTITEXCOORD4IVPROC glad_glMultiTexCoord4iv = NULL;
+PFNGLMULTITEXCOORD4SPROC glad_glMultiTexCoord4s = NULL;
+PFNGLMULTITEXCOORD4SVPROC glad_glMultiTexCoord4sv = NULL;
+PFNGLMULTITEXCOORDP1UIPROC glad_glMultiTexCoordP1ui = NULL;
+PFNGLMULTITEXCOORDP1UIVPROC glad_glMultiTexCoordP1uiv = NULL;
+PFNGLMULTITEXCOORDP2UIPROC glad_glMultiTexCoordP2ui = NULL;
+PFNGLMULTITEXCOORDP2UIVPROC glad_glMultiTexCoordP2uiv = NULL;
+PFNGLMULTITEXCOORDP3UIPROC glad_glMultiTexCoordP3ui = NULL;
+PFNGLMULTITEXCOORDP3UIVPROC glad_glMultiTexCoordP3uiv = NULL;
+PFNGLMULTITEXCOORDP4UIPROC glad_glMultiTexCoordP4ui = NULL;
+PFNGLMULTITEXCOORDP4UIVPROC glad_glMultiTexCoordP4uiv = NULL;
+PFNGLNAMEDBUFFERDATAPROC glad_glNamedBufferData = NULL;
+PFNGLNAMEDBUFFERSTORAGEPROC glad_glNamedBufferStorage = NULL;
+PFNGLNAMEDBUFFERSUBDATAPROC glad_glNamedBufferSubData = NULL;
+PFNGLNAMEDFRAMEBUFFERDRAWBUFFERPROC glad_glNamedFramebufferDrawBuffer = NULL;
+PFNGLNAMEDFRAMEBUFFERDRAWBUFFERSPROC glad_glNamedFramebufferDrawBuffers = NULL;
+PFNGLNAMEDFRAMEBUFFERPARAMETERIPROC glad_glNamedFramebufferParameteri = NULL;
+PFNGLNAMEDFRAMEBUFFERREADBUFFERPROC glad_glNamedFramebufferReadBuffer = NULL;
+PFNGLNAMEDFRAMEBUFFERRENDERBUFFERPROC glad_glNamedFramebufferRenderbuffer = NULL;
+PFNGLNAMEDFRAMEBUFFERTEXTUREPROC glad_glNamedFramebufferTexture = NULL;
+PFNGLNAMEDFRAMEBUFFERTEXTURELAYERPROC glad_glNamedFramebufferTextureLayer = NULL;
+PFNGLNAMEDRENDERBUFFERSTORAGEPROC glad_glNamedRenderbufferStorage = NULL;
+PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLEPROC glad_glNamedRenderbufferStorageMultisample = NULL;
+PFNGLNEWLISTPROC glad_glNewList = NULL;
+PFNGLNORMAL3BPROC glad_glNormal3b = NULL;
+PFNGLNORMAL3BVPROC glad_glNormal3bv = NULL;
+PFNGLNORMAL3DPROC glad_glNormal3d = NULL;
+PFNGLNORMAL3DVPROC glad_glNormal3dv = NULL;
+PFNGLNORMAL3FPROC glad_glNormal3f = NULL;
+PFNGLNORMAL3FVPROC glad_glNormal3fv = NULL;
+PFNGLNORMAL3IPROC glad_glNormal3i = NULL;
+PFNGLNORMAL3IVPROC glad_glNormal3iv = NULL;
+PFNGLNORMAL3SPROC glad_glNormal3s = NULL;
+PFNGLNORMAL3SVPROC glad_glNormal3sv = NULL;
+PFNGLNORMALP3UIPROC glad_glNormalP3ui = NULL;
+PFNGLNORMALP3UIVPROC glad_glNormalP3uiv = NULL;
+PFNGLNORMALPOINTERPROC glad_glNormalPointer = NULL;
+PFNGLOBJECTLABELPROC glad_glObjectLabel = NULL;
+PFNGLOBJECTPTRLABELPROC glad_glObjectPtrLabel = NULL;
+PFNGLORTHOPROC glad_glOrtho = NULL;
+PFNGLPASSTHROUGHPROC glad_glPassThrough = NULL;
+PFNGLPATCHPARAMETERFVPROC glad_glPatchParameterfv = NULL;
+PFNGLPATCHPARAMETERIPROC glad_glPatchParameteri = NULL;
+PFNGLPAUSETRANSFORMFEEDBACKPROC glad_glPauseTransformFeedback = NULL;
+PFNGLPIXELMAPFVPROC glad_glPixelMapfv = NULL;
+PFNGLPIXELMAPUIVPROC glad_glPixelMapuiv = NULL;
+PFNGLPIXELMAPUSVPROC glad_glPixelMapusv = NULL;
+PFNGLPIXELSTOREFPROC glad_glPixelStoref = NULL;
+PFNGLPIXELSTOREIPROC glad_glPixelStorei = NULL;
+PFNGLPIXELTRANSFERFPROC glad_glPixelTransferf = NULL;
+PFNGLPIXELTRANSFERIPROC glad_glPixelTransferi = NULL;
+PFNGLPIXELZOOMPROC glad_glPixelZoom = NULL;
+PFNGLPOINTPARAMETERFPROC glad_glPointParameterf = NULL;
+PFNGLPOINTPARAMETERFVPROC glad_glPointParameterfv = NULL;
+PFNGLPOINTPARAMETERIPROC glad_glPointParameteri = NULL;
+PFNGLPOINTPARAMETERIVPROC glad_glPointParameteriv = NULL;
+PFNGLPOINTSIZEPROC glad_glPointSize = NULL;
+PFNGLPOLYGONMODEPROC glad_glPolygonMode = NULL;
+PFNGLPOLYGONOFFSETPROC glad_glPolygonOffset = NULL;
+PFNGLPOLYGONOFFSETCLAMPPROC glad_glPolygonOffsetClamp = NULL;
+PFNGLPOLYGONSTIPPLEPROC glad_glPolygonStipple = NULL;
+PFNGLPOPATTRIBPROC glad_glPopAttrib = NULL;
+PFNGLPOPCLIENTATTRIBPROC glad_glPopClientAttrib = NULL;
+PFNGLPOPDEBUGGROUPPROC glad_glPopDebugGroup = NULL;
+PFNGLPOPMATRIXPROC glad_glPopMatrix = NULL;
+PFNGLPOPNAMEPROC glad_glPopName = NULL;
+PFNGLPRIMITIVERESTARTINDEXPROC glad_glPrimitiveRestartIndex = NULL;
+PFNGLPRIORITIZETEXTURESPROC glad_glPrioritizeTextures = NULL;
+PFNGLPROGRAMBINARYPROC glad_glProgramBinary = NULL;
+PFNGLPROGRAMPARAMETERIPROC glad_glProgramParameteri = NULL;
+PFNGLPROGRAMUNIFORM1DPROC glad_glProgramUniform1d = NULL;
+PFNGLPROGRAMUNIFORM1DVPROC glad_glProgramUniform1dv = NULL;
+PFNGLPROGRAMUNIFORM1FPROC glad_glProgramUniform1f = NULL;
+PFNGLPROGRAMUNIFORM1FVPROC glad_glProgramUniform1fv = NULL;
+PFNGLPROGRAMUNIFORM1IPROC glad_glProgramUniform1i = NULL;
+PFNGLPROGRAMUNIFORM1IVPROC glad_glProgramUniform1iv = NULL;
+PFNGLPROGRAMUNIFORM1UIPROC glad_glProgramUniform1ui = NULL;
+PFNGLPROGRAMUNIFORM1UIVPROC glad_glProgramUniform1uiv = NULL;
+PFNGLPROGRAMUNIFORM2DPROC glad_glProgramUniform2d = NULL;
+PFNGLPROGRAMUNIFORM2DVPROC glad_glProgramUniform2dv = NULL;
+PFNGLPROGRAMUNIFORM2FPROC glad_glProgramUniform2f = NULL;
+PFNGLPROGRAMUNIFORM2FVPROC glad_glProgramUniform2fv = NULL;
+PFNGLPROGRAMUNIFORM2IPROC glad_glProgramUniform2i = NULL;
+PFNGLPROGRAMUNIFORM2IVPROC glad_glProgramUniform2iv = NULL;
+PFNGLPROGRAMUNIFORM2UIPROC glad_glProgramUniform2ui = NULL;
+PFNGLPROGRAMUNIFORM2UIVPROC glad_glProgramUniform2uiv = NULL;
+PFNGLPROGRAMUNIFORM3DPROC glad_glProgramUniform3d = NULL;
+PFNGLPROGRAMUNIFORM3DVPROC glad_glProgramUniform3dv = NULL;
+PFNGLPROGRAMUNIFORM3FPROC glad_glProgramUniform3f = NULL;
+PFNGLPROGRAMUNIFORM3FVPROC glad_glProgramUniform3fv = NULL;
+PFNGLPROGRAMUNIFORM3IPROC glad_glProgramUniform3i = NULL;
+PFNGLPROGRAMUNIFORM3IVPROC glad_glProgramUniform3iv = NULL;
+PFNGLPROGRAMUNIFORM3UIPROC glad_glProgramUniform3ui = NULL;
+PFNGLPROGRAMUNIFORM3UIVPROC glad_glProgramUniform3uiv = NULL;
+PFNGLPROGRAMUNIFORM4DPROC glad_glProgramUniform4d = NULL;
+PFNGLPROGRAMUNIFORM4DVPROC glad_glProgramUniform4dv = NULL;
+PFNGLPROGRAMUNIFORM4FPROC glad_glProgramUniform4f = NULL;
+PFNGLPROGRAMUNIFORM4FVPROC glad_glProgramUniform4fv = NULL;
+PFNGLPROGRAMUNIFORM4IPROC glad_glProgramUniform4i = NULL;
+PFNGLPROGRAMUNIFORM4IVPROC glad_glProgramUniform4iv = NULL;
+PFNGLPROGRAMUNIFORM4UIPROC glad_glProgramUniform4ui = NULL;
+PFNGLPROGRAMUNIFORM4UIVPROC glad_glProgramUniform4uiv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX2DVPROC glad_glProgramUniformMatrix2dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX2FVPROC glad_glProgramUniformMatrix2fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX2X3DVPROC glad_glProgramUniformMatrix2x3dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX2X3FVPROC glad_glProgramUniformMatrix2x3fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX2X4DVPROC glad_glProgramUniformMatrix2x4dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX2X4FVPROC glad_glProgramUniformMatrix2x4fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX3DVPROC glad_glProgramUniformMatrix3dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX3FVPROC glad_glProgramUniformMatrix3fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX3X2DVPROC glad_glProgramUniformMatrix3x2dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX3X2FVPROC glad_glProgramUniformMatrix3x2fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX3X4DVPROC glad_glProgramUniformMatrix3x4dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX3X4FVPROC glad_glProgramUniformMatrix3x4fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX4DVPROC glad_glProgramUniformMatrix4dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX4FVPROC glad_glProgramUniformMatrix4fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX4X2DVPROC glad_glProgramUniformMatrix4x2dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX4X2FVPROC glad_glProgramUniformMatrix4x2fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX4X3DVPROC glad_glProgramUniformMatrix4x3dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX4X3FVPROC glad_glProgramUniformMatrix4x3fv = NULL;
+PFNGLPROVOKINGVERTEXPROC glad_glProvokingVertex = NULL;
+PFNGLPUSHATTRIBPROC glad_glPushAttrib = NULL;
+PFNGLPUSHCLIENTATTRIBPROC glad_glPushClientAttrib = NULL;
+PFNGLPUSHDEBUGGROUPPROC glad_glPushDebugGroup = NULL;
+PFNGLPUSHMATRIXPROC glad_glPushMatrix = NULL;
+PFNGLPUSHNAMEPROC glad_glPushName = NULL;
+PFNGLQUERYCOUNTERPROC glad_glQueryCounter = NULL;
+PFNGLRASTERPOS2DPROC glad_glRasterPos2d = NULL;
+PFNGLRASTERPOS2DVPROC glad_glRasterPos2dv = NULL;
+PFNGLRASTERPOS2FPROC glad_glRasterPos2f = NULL;
+PFNGLRASTERPOS2FVPROC glad_glRasterPos2fv = NULL;
+PFNGLRASTERPOS2IPROC glad_glRasterPos2i = NULL;
+PFNGLRASTERPOS2IVPROC glad_glRasterPos2iv = NULL;
+PFNGLRASTERPOS2SPROC glad_glRasterPos2s = NULL;
+PFNGLRASTERPOS2SVPROC glad_glRasterPos2sv = NULL;
+PFNGLRASTERPOS3DPROC glad_glRasterPos3d = NULL;
+PFNGLRASTERPOS3DVPROC glad_glRasterPos3dv = NULL;
+PFNGLRASTERPOS3FPROC glad_glRasterPos3f = NULL;
+PFNGLRASTERPOS3FVPROC glad_glRasterPos3fv = NULL;
+PFNGLRASTERPOS3IPROC glad_glRasterPos3i = NULL;
+PFNGLRASTERPOS3IVPROC glad_glRasterPos3iv = NULL;
+PFNGLRASTERPOS3SPROC glad_glRasterPos3s = NULL;
+PFNGLRASTERPOS3SVPROC glad_glRasterPos3sv = NULL;
+PFNGLRASTERPOS4DPROC glad_glRasterPos4d = NULL;
+PFNGLRASTERPOS4DVPROC glad_glRasterPos4dv = NULL;
+PFNGLRASTERPOS4FPROC glad_glRasterPos4f = NULL;
+PFNGLRASTERPOS4FVPROC glad_glRasterPos4fv = NULL;
+PFNGLRASTERPOS4IPROC glad_glRasterPos4i = NULL;
+PFNGLRASTERPOS4IVPROC glad_glRasterPos4iv = NULL;
+PFNGLRASTERPOS4SPROC glad_glRasterPos4s = NULL;
+PFNGLRASTERPOS4SVPROC glad_glRasterPos4sv = NULL;
+PFNGLREADBUFFERPROC glad_glReadBuffer = NULL;
+PFNGLREADPIXELSPROC glad_glReadPixels = NULL;
+PFNGLREADNPIXELSPROC glad_glReadnPixels = NULL;
+PFNGLRECTDPROC glad_glRectd = NULL;
+PFNGLRECTDVPROC glad_glRectdv = NULL;
+PFNGLRECTFPROC glad_glRectf = NULL;
+PFNGLRECTFVPROC glad_glRectfv = NULL;
+PFNGLRECTIPROC glad_glRecti = NULL;
+PFNGLRECTIVPROC glad_glRectiv = NULL;
+PFNGLRECTSPROC glad_glRects = NULL;
+PFNGLRECTSVPROC glad_glRectsv = NULL;
+PFNGLRELEASESHADERCOMPILERPROC glad_glReleaseShaderCompiler = NULL;
+PFNGLRENDERMODEPROC glad_glRenderMode = NULL;
+PFNGLRENDERBUFFERSTORAGEPROC glad_glRenderbufferStorage = NULL;
+PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC glad_glRenderbufferStorageMultisample = NULL;
+PFNGLRESUMETRANSFORMFEEDBACKPROC glad_glResumeTransformFeedback = NULL;
+PFNGLROTATEDPROC glad_glRotated = NULL;
+PFNGLROTATEFPROC glad_glRotatef = NULL;
+PFNGLSAMPLECOVERAGEPROC glad_glSampleCoverage = NULL;
+PFNGLSAMPLEMASKIPROC glad_glSampleMaski = NULL;
+PFNGLSAMPLERPARAMETERIIVPROC glad_glSamplerParameterIiv = NULL;
+PFNGLSAMPLERPARAMETERIUIVPROC glad_glSamplerParameterIuiv = NULL;
+PFNGLSAMPLERPARAMETERFPROC glad_glSamplerParameterf = NULL;
+PFNGLSAMPLERPARAMETERFVPROC glad_glSamplerParameterfv = NULL;
+PFNGLSAMPLERPARAMETERIPROC glad_glSamplerParameteri = NULL;
+PFNGLSAMPLERPARAMETERIVPROC glad_glSamplerParameteriv = NULL;
+PFNGLSCALEDPROC glad_glScaled = NULL;
+PFNGLSCALEFPROC glad_glScalef = NULL;
+PFNGLSCISSORPROC glad_glScissor = NULL;
+PFNGLSCISSORARRAYVPROC glad_glScissorArrayv = NULL;
+PFNGLSCISSORINDEXEDPROC glad_glScissorIndexed = NULL;
+PFNGLSCISSORINDEXEDVPROC glad_glScissorIndexedv = NULL;
+PFNGLSECONDARYCOLOR3BPROC glad_glSecondaryColor3b = NULL;
+PFNGLSECONDARYCOLOR3BVPROC glad_glSecondaryColor3bv = NULL;
+PFNGLSECONDARYCOLOR3DPROC glad_glSecondaryColor3d = NULL;
+PFNGLSECONDARYCOLOR3DVPROC glad_glSecondaryColor3dv = NULL;
+PFNGLSECONDARYCOLOR3FPROC glad_glSecondaryColor3f = NULL;
+PFNGLSECONDARYCOLOR3FVPROC glad_glSecondaryColor3fv = NULL;
+PFNGLSECONDARYCOLOR3IPROC glad_glSecondaryColor3i = NULL;
+PFNGLSECONDARYCOLOR3IVPROC glad_glSecondaryColor3iv = NULL;
+PFNGLSECONDARYCOLOR3SPROC glad_glSecondaryColor3s = NULL;
+PFNGLSECONDARYCOLOR3SVPROC glad_glSecondaryColor3sv = NULL;
+PFNGLSECONDARYCOLOR3UBPROC glad_glSecondaryColor3ub = NULL;
+PFNGLSECONDARYCOLOR3UBVPROC glad_glSecondaryColor3ubv = NULL;
+PFNGLSECONDARYCOLOR3UIPROC glad_glSecondaryColor3ui = NULL;
+PFNGLSECONDARYCOLOR3UIVPROC glad_glSecondaryColor3uiv = NULL;
+PFNGLSECONDARYCOLOR3USPROC glad_glSecondaryColor3us = NULL;
+PFNGLSECONDARYCOLOR3USVPROC glad_glSecondaryColor3usv = NULL;
+PFNGLSECONDARYCOLORP3UIPROC glad_glSecondaryColorP3ui = NULL;
+PFNGLSECONDARYCOLORP3UIVPROC glad_glSecondaryColorP3uiv = NULL;
+PFNGLSECONDARYCOLORPOINTERPROC glad_glSecondaryColorPointer = NULL;
+PFNGLSELECTBUFFERPROC glad_glSelectBuffer = NULL;
+PFNGLSHADEMODELPROC glad_glShadeModel = NULL;
+PFNGLSHADERBINARYPROC glad_glShaderBinary = NULL;
+PFNGLSHADERSOURCEPROC glad_glShaderSource = NULL;
+PFNGLSHADERSTORAGEBLOCKBINDINGPROC glad_glShaderStorageBlockBinding = NULL;
+PFNGLSPECIALIZESHADERPROC glad_glSpecializeShader = NULL;
+PFNGLSTENCILFUNCPROC glad_glStencilFunc = NULL;
+PFNGLSTENCILFUNCSEPARATEPROC glad_glStencilFuncSeparate = NULL;
+PFNGLSTENCILMASKPROC glad_glStencilMask = NULL;
+PFNGLSTENCILMASKSEPARATEPROC glad_glStencilMaskSeparate = NULL;
+PFNGLSTENCILOPPROC glad_glStencilOp = NULL;
+PFNGLSTENCILOPSEPARATEPROC glad_glStencilOpSeparate = NULL;
+PFNGLTEXBUFFERPROC glad_glTexBuffer = NULL;
+PFNGLTEXBUFFERRANGEPROC glad_glTexBufferRange = NULL;
+PFNGLTEXCOORD1DPROC glad_glTexCoord1d = NULL;
+PFNGLTEXCOORD1DVPROC glad_glTexCoord1dv = NULL;
+PFNGLTEXCOORD1FPROC glad_glTexCoord1f = NULL;
+PFNGLTEXCOORD1FVPROC glad_glTexCoord1fv = NULL;
+PFNGLTEXCOORD1IPROC glad_glTexCoord1i = NULL;
+PFNGLTEXCOORD1IVPROC glad_glTexCoord1iv = NULL;
+PFNGLTEXCOORD1SPROC glad_glTexCoord1s = NULL;
+PFNGLTEXCOORD1SVPROC glad_glTexCoord1sv = NULL;
+PFNGLTEXCOORD2DPROC glad_glTexCoord2d = NULL;
+PFNGLTEXCOORD2DVPROC glad_glTexCoord2dv = NULL;
+PFNGLTEXCOORD2FPROC glad_glTexCoord2f = NULL;
+PFNGLTEXCOORD2FVPROC glad_glTexCoord2fv = NULL;
+PFNGLTEXCOORD2IPROC glad_glTexCoord2i = NULL;
+PFNGLTEXCOORD2IVPROC glad_glTexCoord2iv = NULL;
+PFNGLTEXCOORD2SPROC glad_glTexCoord2s = NULL;
+PFNGLTEXCOORD2SVPROC glad_glTexCoord2sv = NULL;
+PFNGLTEXCOORD3DPROC glad_glTexCoord3d = NULL;
+PFNGLTEXCOORD3DVPROC glad_glTexCoord3dv = NULL;
+PFNGLTEXCOORD3FPROC glad_glTexCoord3f = NULL;
+PFNGLTEXCOORD3FVPROC glad_glTexCoord3fv = NULL;
+PFNGLTEXCOORD3IPROC glad_glTexCoord3i = NULL;
+PFNGLTEXCOORD3IVPROC glad_glTexCoord3iv = NULL;
+PFNGLTEXCOORD3SPROC glad_glTexCoord3s = NULL;
+PFNGLTEXCOORD3SVPROC glad_glTexCoord3sv = NULL;
+PFNGLTEXCOORD4DPROC glad_glTexCoord4d = NULL;
+PFNGLTEXCOORD4DVPROC glad_glTexCoord4dv = NULL;
+PFNGLTEXCOORD4FPROC glad_glTexCoord4f = NULL;
+PFNGLTEXCOORD4FVPROC glad_glTexCoord4fv = NULL;
+PFNGLTEXCOORD4IPROC glad_glTexCoord4i = NULL;
+PFNGLTEXCOORD4IVPROC glad_glTexCoord4iv = NULL;
+PFNGLTEXCOORD4SPROC glad_glTexCoord4s = NULL;
+PFNGLTEXCOORD4SVPROC glad_glTexCoord4sv = NULL;
+PFNGLTEXCOORDP1UIPROC glad_glTexCoordP1ui = NULL;
+PFNGLTEXCOORDP1UIVPROC glad_glTexCoordP1uiv = NULL;
+PFNGLTEXCOORDP2UIPROC glad_glTexCoordP2ui = NULL;
+PFNGLTEXCOORDP2UIVPROC glad_glTexCoordP2uiv = NULL;
+PFNGLTEXCOORDP3UIPROC glad_glTexCoordP3ui = NULL;
+PFNGLTEXCOORDP3UIVPROC glad_glTexCoordP3uiv = NULL;
+PFNGLTEXCOORDP4UIPROC glad_glTexCoordP4ui = NULL;
+PFNGLTEXCOORDP4UIVPROC glad_glTexCoordP4uiv = NULL;
+PFNGLTEXCOORDPOINTERPROC glad_glTexCoordPointer = NULL;
+PFNGLTEXENVFPROC glad_glTexEnvf = NULL;
+PFNGLTEXENVFVPROC glad_glTexEnvfv = NULL;
+PFNGLTEXENVIPROC glad_glTexEnvi = NULL;
+PFNGLTEXENVIVPROC glad_glTexEnviv = NULL;
+PFNGLTEXGENDPROC glad_glTexGend = NULL;
+PFNGLTEXGENDVPROC glad_glTexGendv = NULL;
+PFNGLTEXGENFPROC glad_glTexGenf = NULL;
+PFNGLTEXGENFVPROC glad_glTexGenfv = NULL;
+PFNGLTEXGENIPROC glad_glTexGeni = NULL;
+PFNGLTEXGENIVPROC glad_glTexGeniv = NULL;
+PFNGLTEXIMAGE1DPROC glad_glTexImage1D = NULL;
+PFNGLTEXIMAGE2DPROC glad_glTexImage2D = NULL;
+PFNGLTEXIMAGE2DMULTISAMPLEPROC glad_glTexImage2DMultisample = NULL;
+PFNGLTEXIMAGE3DPROC glad_glTexImage3D = NULL;
+PFNGLTEXIMAGE3DMULTISAMPLEPROC glad_glTexImage3DMultisample = NULL;
+PFNGLTEXPARAMETERIIVPROC glad_glTexParameterIiv = NULL;
+PFNGLTEXPARAMETERIUIVPROC glad_glTexParameterIuiv = NULL;
+PFNGLTEXPARAMETERFPROC glad_glTexParameterf = NULL;
+PFNGLTEXPARAMETERFVPROC glad_glTexParameterfv = NULL;
+PFNGLTEXPARAMETERIPROC glad_glTexParameteri = NULL;
+PFNGLTEXPARAMETERIVPROC glad_glTexParameteriv = NULL;
+PFNGLTEXSTORAGE1DPROC glad_glTexStorage1D = NULL;
+PFNGLTEXSTORAGE2DPROC glad_glTexStorage2D = NULL;
+PFNGLTEXSTORAGE2DMULTISAMPLEPROC glad_glTexStorage2DMultisample = NULL;
+PFNGLTEXSTORAGE3DPROC glad_glTexStorage3D = NULL;
+PFNGLTEXSTORAGE3DMULTISAMPLEPROC glad_glTexStorage3DMultisample = NULL;
+PFNGLTEXSUBIMAGE1DPROC glad_glTexSubImage1D = NULL;
+PFNGLTEXSUBIMAGE2DPROC glad_glTexSubImage2D = NULL;
+PFNGLTEXSUBIMAGE3DPROC glad_glTexSubImage3D = NULL;
+PFNGLTEXTUREBARRIERPROC glad_glTextureBarrier = NULL;
+PFNGLTEXTUREBUFFERPROC glad_glTextureBuffer = NULL;
+PFNGLTEXTUREBUFFERRANGEPROC glad_glTextureBufferRange = NULL;
+PFNGLTEXTUREPARAMETERIIVPROC glad_glTextureParameterIiv = NULL;
+PFNGLTEXTUREPARAMETERIUIVPROC glad_glTextureParameterIuiv = NULL;
+PFNGLTEXTUREPARAMETERFPROC glad_glTextureParameterf = NULL;
+PFNGLTEXTUREPARAMETERFVPROC glad_glTextureParameterfv = NULL;
+PFNGLTEXTUREPARAMETERIPROC glad_glTextureParameteri = NULL;
+PFNGLTEXTUREPARAMETERIVPROC glad_glTextureParameteriv = NULL;
+PFNGLTEXTURESTORAGE1DPROC glad_glTextureStorage1D = NULL;
+PFNGLTEXTURESTORAGE2DPROC glad_glTextureStorage2D = NULL;
+PFNGLTEXTURESTORAGE2DMULTISAMPLEPROC glad_glTextureStorage2DMultisample = NULL;
+PFNGLTEXTURESTORAGE3DPROC glad_glTextureStorage3D = NULL;
+PFNGLTEXTURESTORAGE3DMULTISAMPLEPROC glad_glTextureStorage3DMultisample = NULL;
+PFNGLTEXTURESUBIMAGE1DPROC glad_glTextureSubImage1D = NULL;
+PFNGLTEXTURESUBIMAGE2DPROC glad_glTextureSubImage2D = NULL;
+PFNGLTEXTURESUBIMAGE3DPROC glad_glTextureSubImage3D = NULL;
+PFNGLTEXTUREVIEWPROC glad_glTextureView = NULL;
+PFNGLTRANSFORMFEEDBACKBUFFERBASEPROC glad_glTransformFeedbackBufferBase = NULL;
+PFNGLTRANSFORMFEEDBACKBUFFERRANGEPROC glad_glTransformFeedbackBufferRange = NULL;
+PFNGLTRANSFORMFEEDBACKVARYINGSPROC glad_glTransformFeedbackVaryings = NULL;
+PFNGLTRANSLATEDPROC glad_glTranslated = NULL;
+PFNGLTRANSLATEFPROC glad_glTranslatef = NULL;
+PFNGLUNIFORM1DPROC glad_glUniform1d = NULL;
+PFNGLUNIFORM1DVPROC glad_glUniform1dv = NULL;
+PFNGLUNIFORM1FPROC glad_glUniform1f = NULL;
+PFNGLUNIFORM1FVPROC glad_glUniform1fv = NULL;
+PFNGLUNIFORM1IPROC glad_glUniform1i = NULL;
+PFNGLUNIFORM1IVPROC glad_glUniform1iv = NULL;
+PFNGLUNIFORM1UIPROC glad_glUniform1ui = NULL;
+PFNGLUNIFORM1UIVPROC glad_glUniform1uiv = NULL;
+PFNGLUNIFORM2DPROC glad_glUniform2d = NULL;
+PFNGLUNIFORM2DVPROC glad_glUniform2dv = NULL;
+PFNGLUNIFORM2FPROC glad_glUniform2f = NULL;
+PFNGLUNIFORM2FVPROC glad_glUniform2fv = NULL;
+PFNGLUNIFORM2IPROC glad_glUniform2i = NULL;
+PFNGLUNIFORM2IVPROC glad_glUniform2iv = NULL;
+PFNGLUNIFORM2UIPROC glad_glUniform2ui = NULL;
+PFNGLUNIFORM2UIVPROC glad_glUniform2uiv = NULL;
+PFNGLUNIFORM3DPROC glad_glUniform3d = NULL;
+PFNGLUNIFORM3DVPROC glad_glUniform3dv = NULL;
+PFNGLUNIFORM3FPROC glad_glUniform3f = NULL;
+PFNGLUNIFORM3FVPROC glad_glUniform3fv = NULL;
+PFNGLUNIFORM3IPROC glad_glUniform3i = NULL;
+PFNGLUNIFORM3IVPROC glad_glUniform3iv = NULL;
+PFNGLUNIFORM3UIPROC glad_glUniform3ui = NULL;
+PFNGLUNIFORM3UIVPROC glad_glUniform3uiv = NULL;
+PFNGLUNIFORM4DPROC glad_glUniform4d = NULL;
+PFNGLUNIFORM4DVPROC glad_glUniform4dv = NULL;
+PFNGLUNIFORM4FPROC glad_glUniform4f = NULL;
+PFNGLUNIFORM4FVPROC glad_glUniform4fv = NULL;
+PFNGLUNIFORM4IPROC glad_glUniform4i = NULL;
+PFNGLUNIFORM4IVPROC glad_glUniform4iv = NULL;
+PFNGLUNIFORM4UIPROC glad_glUniform4ui = NULL;
+PFNGLUNIFORM4UIVPROC glad_glUniform4uiv = NULL;
+PFNGLUNIFORMBLOCKBINDINGPROC glad_glUniformBlockBinding = NULL;
+PFNGLUNIFORMMATRIX2DVPROC glad_glUniformMatrix2dv = NULL;
+PFNGLUNIFORMMATRIX2FVPROC glad_glUniformMatrix2fv = NULL;
+PFNGLUNIFORMMATRIX2X3DVPROC glad_glUniformMatrix2x3dv = NULL;
+PFNGLUNIFORMMATRIX2X3FVPROC glad_glUniformMatrix2x3fv = NULL;
+PFNGLUNIFORMMATRIX2X4DVPROC glad_glUniformMatrix2x4dv = NULL;
+PFNGLUNIFORMMATRIX2X4FVPROC glad_glUniformMatrix2x4fv = NULL;
+PFNGLUNIFORMMATRIX3DVPROC glad_glUniformMatrix3dv = NULL;
+PFNGLUNIFORMMATRIX3FVPROC glad_glUniformMatrix3fv = NULL;
+PFNGLUNIFORMMATRIX3X2DVPROC glad_glUniformMatrix3x2dv = NULL;
+PFNGLUNIFORMMATRIX3X2FVPROC glad_glUniformMatrix3x2fv = NULL;
+PFNGLUNIFORMMATRIX3X4DVPROC glad_glUniformMatrix3x4dv = NULL;
+PFNGLUNIFORMMATRIX3X4FVPROC glad_glUniformMatrix3x4fv = NULL;
+PFNGLUNIFORMMATRIX4DVPROC glad_glUniformMatrix4dv = NULL;
+PFNGLUNIFORMMATRIX4FVPROC glad_glUniformMatrix4fv = NULL;
+PFNGLUNIFORMMATRIX4X2DVPROC glad_glUniformMatrix4x2dv = NULL;
+PFNGLUNIFORMMATRIX4X2FVPROC glad_glUniformMatrix4x2fv = NULL;
+PFNGLUNIFORMMATRIX4X3DVPROC glad_glUniformMatrix4x3dv = NULL;
+PFNGLUNIFORMMATRIX4X3FVPROC glad_glUniformMatrix4x3fv = NULL;
+PFNGLUNIFORMSUBROUTINESUIVPROC glad_glUniformSubroutinesuiv = NULL;
+PFNGLUNMAPBUFFERPROC glad_glUnmapBuffer = NULL;
+PFNGLUNMAPNAMEDBUFFERPROC glad_glUnmapNamedBuffer = NULL;
+PFNGLUSEPROGRAMPROC glad_glUseProgram = NULL;
+PFNGLUSEPROGRAMSTAGESPROC glad_glUseProgramStages = NULL;
+PFNGLVALIDATEPROGRAMPROC glad_glValidateProgram = NULL;
+PFNGLVALIDATEPROGRAMPIPELINEPROC glad_glValidateProgramPipeline = NULL;
+PFNGLVERTEX2DPROC glad_glVertex2d = NULL;
+PFNGLVERTEX2DVPROC glad_glVertex2dv = NULL;
+PFNGLVERTEX2FPROC glad_glVertex2f = NULL;
+PFNGLVERTEX2FVPROC glad_glVertex2fv = NULL;
+PFNGLVERTEX2IPROC glad_glVertex2i = NULL;
+PFNGLVERTEX2IVPROC glad_glVertex2iv = NULL;
+PFNGLVERTEX2SPROC glad_glVertex2s = NULL;
+PFNGLVERTEX2SVPROC glad_glVertex2sv = NULL;
+PFNGLVERTEX3DPROC glad_glVertex3d = NULL;
+PFNGLVERTEX3DVPROC glad_glVertex3dv = NULL;
+PFNGLVERTEX3FPROC glad_glVertex3f = NULL;
+PFNGLVERTEX3FVPROC glad_glVertex3fv = NULL;
+PFNGLVERTEX3IPROC glad_glVertex3i = NULL;
+PFNGLVERTEX3IVPROC glad_glVertex3iv = NULL;
+PFNGLVERTEX3SPROC glad_glVertex3s = NULL;
+PFNGLVERTEX3SVPROC glad_glVertex3sv = NULL;
+PFNGLVERTEX4DPROC glad_glVertex4d = NULL;
+PFNGLVERTEX4DVPROC glad_glVertex4dv = NULL;
+PFNGLVERTEX4FPROC glad_glVertex4f = NULL;
+PFNGLVERTEX4FVPROC glad_glVertex4fv = NULL;
+PFNGLVERTEX4IPROC glad_glVertex4i = NULL;
+PFNGLVERTEX4IVPROC glad_glVertex4iv = NULL;
+PFNGLVERTEX4SPROC glad_glVertex4s = NULL;
+PFNGLVERTEX4SVPROC glad_glVertex4sv = NULL;
+PFNGLVERTEXARRAYATTRIBBINDINGPROC glad_glVertexArrayAttribBinding = NULL;
+PFNGLVERTEXARRAYATTRIBFORMATPROC glad_glVertexArrayAttribFormat = NULL;
+PFNGLVERTEXARRAYATTRIBIFORMATPROC glad_glVertexArrayAttribIFormat = NULL;
+PFNGLVERTEXARRAYATTRIBLFORMATPROC glad_glVertexArrayAttribLFormat = NULL;
+PFNGLVERTEXARRAYBINDINGDIVISORPROC glad_glVertexArrayBindingDivisor = NULL;
+PFNGLVERTEXARRAYELEMENTBUFFERPROC glad_glVertexArrayElementBuffer = NULL;
+PFNGLVERTEXARRAYVERTEXBUFFERPROC glad_glVertexArrayVertexBuffer = NULL;
+PFNGLVERTEXARRAYVERTEXBUFFERSPROC glad_glVertexArrayVertexBuffers = NULL;
+PFNGLVERTEXATTRIB1DPROC glad_glVertexAttrib1d = NULL;
+PFNGLVERTEXATTRIB1DVPROC glad_glVertexAttrib1dv = NULL;
+PFNGLVERTEXATTRIB1FPROC glad_glVertexAttrib1f = NULL;
+PFNGLVERTEXATTRIB1FVPROC glad_glVertexAttrib1fv = NULL;
+PFNGLVERTEXATTRIB1SPROC glad_glVertexAttrib1s = NULL;
+PFNGLVERTEXATTRIB1SVPROC glad_glVertexAttrib1sv = NULL;
+PFNGLVERTEXATTRIB2DPROC glad_glVertexAttrib2d = NULL;
+PFNGLVERTEXATTRIB2DVPROC glad_glVertexAttrib2dv = NULL;
+PFNGLVERTEXATTRIB2FPROC glad_glVertexAttrib2f = NULL;
+PFNGLVERTEXATTRIB2FVPROC glad_glVertexAttrib2fv = NULL;
+PFNGLVERTEXATTRIB2SPROC glad_glVertexAttrib2s = NULL;
+PFNGLVERTEXATTRIB2SVPROC glad_glVertexAttrib2sv = NULL;
+PFNGLVERTEXATTRIB3DPROC glad_glVertexAttrib3d = NULL;
+PFNGLVERTEXATTRIB3DVPROC glad_glVertexAttrib3dv = NULL;
+PFNGLVERTEXATTRIB3FPROC glad_glVertexAttrib3f = NULL;
+PFNGLVERTEXATTRIB3FVPROC glad_glVertexAttrib3fv = NULL;
+PFNGLVERTEXATTRIB3SPROC glad_glVertexAttrib3s = NULL;
+PFNGLVERTEXATTRIB3SVPROC glad_glVertexAttrib3sv = NULL;
+PFNGLVERTEXATTRIB4NBVPROC glad_glVertexAttrib4Nbv = NULL;
+PFNGLVERTEXATTRIB4NIVPROC glad_glVertexAttrib4Niv = NULL;
+PFNGLVERTEXATTRIB4NSVPROC glad_glVertexAttrib4Nsv = NULL;
+PFNGLVERTEXATTRIB4NUBPROC glad_glVertexAttrib4Nub = NULL;
+PFNGLVERTEXATTRIB4NUBVPROC glad_glVertexAttrib4Nubv = NULL;
+PFNGLVERTEXATTRIB4NUIVPROC glad_glVertexAttrib4Nuiv = NULL;
+PFNGLVERTEXATTRIB4NUSVPROC glad_glVertexAttrib4Nusv = NULL;
+PFNGLVERTEXATTRIB4BVPROC glad_glVertexAttrib4bv = NULL;
+PFNGLVERTEXATTRIB4DPROC glad_glVertexAttrib4d = NULL;
+PFNGLVERTEXATTRIB4DVPROC glad_glVertexAttrib4dv = NULL;
+PFNGLVERTEXATTRIB4FPROC glad_glVertexAttrib4f = NULL;
+PFNGLVERTEXATTRIB4FVPROC glad_glVertexAttrib4fv = NULL;
+PFNGLVERTEXATTRIB4IVPROC glad_glVertexAttrib4iv = NULL;
+PFNGLVERTEXATTRIB4SPROC glad_glVertexAttrib4s = NULL;
+PFNGLVERTEXATTRIB4SVPROC glad_glVertexAttrib4sv = NULL;
+PFNGLVERTEXATTRIB4UBVPROC glad_glVertexAttrib4ubv = NULL;
+PFNGLVERTEXATTRIB4UIVPROC glad_glVertexAttrib4uiv = NULL;
+PFNGLVERTEXATTRIB4USVPROC glad_glVertexAttrib4usv = NULL;
+PFNGLVERTEXATTRIBBINDINGPROC glad_glVertexAttribBinding = NULL;
+PFNGLVERTEXATTRIBDIVISORPROC glad_glVertexAttribDivisor = NULL;
+PFNGLVERTEXATTRIBFORMATPROC glad_glVertexAttribFormat = NULL;
+PFNGLVERTEXATTRIBI1IPROC glad_glVertexAttribI1i = NULL;
+PFNGLVERTEXATTRIBI1IVPROC glad_glVertexAttribI1iv = NULL;
+PFNGLVERTEXATTRIBI1UIPROC glad_glVertexAttribI1ui = NULL;
+PFNGLVERTEXATTRIBI1UIVPROC glad_glVertexAttribI1uiv = NULL;
+PFNGLVERTEXATTRIBI2IPROC glad_glVertexAttribI2i = NULL;
+PFNGLVERTEXATTRIBI2IVPROC glad_glVertexAttribI2iv = NULL;
+PFNGLVERTEXATTRIBI2UIPROC glad_glVertexAttribI2ui = NULL;
+PFNGLVERTEXATTRIBI2UIVPROC glad_glVertexAttribI2uiv = NULL;
+PFNGLVERTEXATTRIBI3IPROC glad_glVertexAttribI3i = NULL;
+PFNGLVERTEXATTRIBI3IVPROC glad_glVertexAttribI3iv = NULL;
+PFNGLVERTEXATTRIBI3UIPROC glad_glVertexAttribI3ui = NULL;
+PFNGLVERTEXATTRIBI3UIVPROC glad_glVertexAttribI3uiv = NULL;
+PFNGLVERTEXATTRIBI4BVPROC glad_glVertexAttribI4bv = NULL;
+PFNGLVERTEXATTRIBI4IPROC glad_glVertexAttribI4i = NULL;
+PFNGLVERTEXATTRIBI4IVPROC glad_glVertexAttribI4iv = NULL;
+PFNGLVERTEXATTRIBI4SVPROC glad_glVertexAttribI4sv = NULL;
+PFNGLVERTEXATTRIBI4UBVPROC glad_glVertexAttribI4ubv = NULL;
+PFNGLVERTEXATTRIBI4UIPROC glad_glVertexAttribI4ui = NULL;
+PFNGLVERTEXATTRIBI4UIVPROC glad_glVertexAttribI4uiv = NULL;
+PFNGLVERTEXATTRIBI4USVPROC glad_glVertexAttribI4usv = NULL;
+PFNGLVERTEXATTRIBIFORMATPROC glad_glVertexAttribIFormat = NULL;
+PFNGLVERTEXATTRIBIPOINTERPROC glad_glVertexAttribIPointer = NULL;
+PFNGLVERTEXATTRIBL1DPROC glad_glVertexAttribL1d = NULL;
+PFNGLVERTEXATTRIBL1DVPROC glad_glVertexAttribL1dv = NULL;
+PFNGLVERTEXATTRIBL2DPROC glad_glVertexAttribL2d = NULL;
+PFNGLVERTEXATTRIBL2DVPROC glad_glVertexAttribL2dv = NULL;
+PFNGLVERTEXATTRIBL3DPROC glad_glVertexAttribL3d = NULL;
+PFNGLVERTEXATTRIBL3DVPROC glad_glVertexAttribL3dv = NULL;
+PFNGLVERTEXATTRIBL4DPROC glad_glVertexAttribL4d = NULL;
+PFNGLVERTEXATTRIBL4DVPROC glad_glVertexAttribL4dv = NULL;
+PFNGLVERTEXATTRIBLFORMATPROC glad_glVertexAttribLFormat = NULL;
+PFNGLVERTEXATTRIBLPOINTERPROC glad_glVertexAttribLPointer = NULL;
+PFNGLVERTEXATTRIBP1UIPROC glad_glVertexAttribP1ui = NULL;
+PFNGLVERTEXATTRIBP1UIVPROC glad_glVertexAttribP1uiv = NULL;
+PFNGLVERTEXATTRIBP2UIPROC glad_glVertexAttribP2ui = NULL;
+PFNGLVERTEXATTRIBP2UIVPROC glad_glVertexAttribP2uiv = NULL;
+PFNGLVERTEXATTRIBP3UIPROC glad_glVertexAttribP3ui = NULL;
+PFNGLVERTEXATTRIBP3UIVPROC glad_glVertexAttribP3uiv = NULL;
+PFNGLVERTEXATTRIBP4UIPROC glad_glVertexAttribP4ui = NULL;
+PFNGLVERTEXATTRIBP4UIVPROC glad_glVertexAttribP4uiv = NULL;
+PFNGLVERTEXATTRIBPOINTERPROC glad_glVertexAttribPointer = NULL;
+PFNGLVERTEXBINDINGDIVISORPROC glad_glVertexBindingDivisor = NULL;
+PFNGLVERTEXP2UIPROC glad_glVertexP2ui = NULL;
+PFNGLVERTEXP2UIVPROC glad_glVertexP2uiv = NULL;
+PFNGLVERTEXP3UIPROC glad_glVertexP3ui = NULL;
+PFNGLVERTEXP3UIVPROC glad_glVertexP3uiv = NULL;
+PFNGLVERTEXP4UIPROC glad_glVertexP4ui = NULL;
+PFNGLVERTEXP4UIVPROC glad_glVertexP4uiv = NULL;
+PFNGLVERTEXPOINTERPROC glad_glVertexPointer = NULL;
+PFNGLVIEWPORTPROC glad_glViewport = NULL;
+PFNGLVIEWPORTARRAYVPROC glad_glViewportArrayv = NULL;
+PFNGLVIEWPORTINDEXEDFPROC glad_glViewportIndexedf = NULL;
+PFNGLVIEWPORTINDEXEDFVPROC glad_glViewportIndexedfv = NULL;
+PFNGLWAITSYNCPROC glad_glWaitSync = NULL;
+PFNGLWINDOWPOS2DPROC glad_glWindowPos2d = NULL;
+PFNGLWINDOWPOS2DVPROC glad_glWindowPos2dv = NULL;
+PFNGLWINDOWPOS2FPROC glad_glWindowPos2f = NULL;
+PFNGLWINDOWPOS2FVPROC glad_glWindowPos2fv = NULL;
+PFNGLWINDOWPOS2IPROC glad_glWindowPos2i = NULL;
+PFNGLWINDOWPOS2IVPROC glad_glWindowPos2iv = NULL;
+PFNGLWINDOWPOS2SPROC glad_glWindowPos2s = NULL;
+PFNGLWINDOWPOS2SVPROC glad_glWindowPos2sv = NULL;
+PFNGLWINDOWPOS3DPROC glad_glWindowPos3d = NULL;
+PFNGLWINDOWPOS3DVPROC glad_glWindowPos3dv = NULL;
+PFNGLWINDOWPOS3FPROC glad_glWindowPos3f = NULL;
+PFNGLWINDOWPOS3FVPROC glad_glWindowPos3fv = NULL;
+PFNGLWINDOWPOS3IPROC glad_glWindowPos3i = NULL;
+PFNGLWINDOWPOS3IVPROC glad_glWindowPos3iv = NULL;
+PFNGLWINDOWPOS3SPROC glad_glWindowPos3s = NULL;
+PFNGLWINDOWPOS3SVPROC glad_glWindowPos3sv = NULL;
+static void load_GL_VERSION_1_0(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_1_0) return;
+	glad_glCullFace = (PFNGLCULLFACEPROC)load("glCullFace");
+	glad_glFrontFace = (PFNGLFRONTFACEPROC)load("glFrontFace");
+	glad_glHint = (PFNGLHINTPROC)load("glHint");
+	glad_glLineWidth = (PFNGLLINEWIDTHPROC)load("glLineWidth");
+	glad_glPointSize = (PFNGLPOINTSIZEPROC)load("glPointSize");
+	glad_glPolygonMode = (PFNGLPOLYGONMODEPROC)load("glPolygonMode");
+	glad_glScissor = (PFNGLSCISSORPROC)load("glScissor");
+	glad_glTexParameterf = (PFNGLTEXPARAMETERFPROC)load("glTexParameterf");
+	glad_glTexParameterfv = (PFNGLTEXPARAMETERFVPROC)load("glTexParameterfv");
+	glad_glTexParameteri = (PFNGLTEXPARAMETERIPROC)load("glTexParameteri");
+	glad_glTexParameteriv = (PFNGLTEXPARAMETERIVPROC)load("glTexParameteriv");
+	glad_glTexImage1D = (PFNGLTEXIMAGE1DPROC)load("glTexImage1D");
+	glad_glTexImage2D = (PFNGLTEXIMAGE2DPROC)load("glTexImage2D");
+	glad_glDrawBuffer = (PFNGLDRAWBUFFERPROC)load("glDrawBuffer");
+	glad_glClear = (PFNGLCLEARPROC)load("glClear");
+	glad_glClearColor = (PFNGLCLEARCOLORPROC)load("glClearColor");
+	glad_glClearStencil = (PFNGLCLEARSTENCILPROC)load("glClearStencil");
+	glad_glClearDepth = (PFNGLCLEARDEPTHPROC)load("glClearDepth");
+	glad_glStencilMask = (PFNGLSTENCILMASKPROC)load("glStencilMask");
+	glad_glColorMask = (PFNGLCOLORMASKPROC)load("glColorMask");
+	glad_glDepthMask = (PFNGLDEPTHMASKPROC)load("glDepthMask");
+	glad_glDisable = (PFNGLDISABLEPROC)load("glDisable");
+	glad_glEnable = (PFNGLENABLEPROC)load("glEnable");
+	glad_glFinish = (PFNGLFINISHPROC)load("glFinish");
+	glad_glFlush = (PFNGLFLUSHPROC)load("glFlush");
+	glad_glBlendFunc = (PFNGLBLENDFUNCPROC)load("glBlendFunc");
+	glad_glLogicOp = (PFNGLLOGICOPPROC)load("glLogicOp");
+	glad_glStencilFunc = (PFNGLSTENCILFUNCPROC)load("glStencilFunc");
+	glad_glStencilOp = (PFNGLSTENCILOPPROC)load("glStencilOp");
+	glad_glDepthFunc = (PFNGLDEPTHFUNCPROC)load("glDepthFunc");
+	glad_glPixelStoref = (PFNGLPIXELSTOREFPROC)load("glPixelStoref");
+	glad_glPixelStorei = (PFNGLPIXELSTOREIPROC)load("glPixelStorei");
+	glad_glReadBuffer = (PFNGLREADBUFFERPROC)load("glReadBuffer");
+	glad_glReadPixels = (PFNGLREADPIXELSPROC)load("glReadPixels");
+	glad_glGetBooleanv = (PFNGLGETBOOLEANVPROC)load("glGetBooleanv");
+	glad_glGetDoublev = (PFNGLGETDOUBLEVPROC)load("glGetDoublev");
+	glad_glGetError = (PFNGLGETERRORPROC)load("glGetError");
+	glad_glGetFloatv = (PFNGLGETFLOATVPROC)load("glGetFloatv");
+	glad_glGetIntegerv = (PFNGLGETINTEGERVPROC)load("glGetIntegerv");
+	glad_glGetString = (PFNGLGETSTRINGPROC)load("glGetString");
+	glad_glGetTexImage = (PFNGLGETTEXIMAGEPROC)load("glGetTexImage");
+	glad_glGetTexParameterfv = (PFNGLGETTEXPARAMETERFVPROC)load("glGetTexParameterfv");
+	glad_glGetTexParameteriv = (PFNGLGETTEXPARAMETERIVPROC)load("glGetTexParameteriv");
+	glad_glGetTexLevelParameterfv = (PFNGLGETTEXLEVELPARAMETERFVPROC)load("glGetTexLevelParameterfv");
+	glad_glGetTexLevelParameteriv = (PFNGLGETTEXLEVELPARAMETERIVPROC)load("glGetTexLevelParameteriv");
+	glad_glIsEnabled = (PFNGLISENABLEDPROC)load("glIsEnabled");
+	glad_glDepthRange = (PFNGLDEPTHRANGEPROC)load("glDepthRange");
+	glad_glViewport = (PFNGLVIEWPORTPROC)load("glViewport");
+	glad_glNewList = (PFNGLNEWLISTPROC)load("glNewList");
+	glad_glEndList = (PFNGLENDLISTPROC)load("glEndList");
+	glad_glCallList = (PFNGLCALLLISTPROC)load("glCallList");
+	glad_glCallLists = (PFNGLCALLLISTSPROC)load("glCallLists");
+	glad_glDeleteLists = (PFNGLDELETELISTSPROC)load("glDeleteLists");
+	glad_glGenLists = (PFNGLGENLISTSPROC)load("glGenLists");
+	glad_glListBase = (PFNGLLISTBASEPROC)load("glListBase");
+	glad_glBegin = (PFNGLBEGINPROC)load("glBegin");
+	glad_glBitmap = (PFNGLBITMAPPROC)load("glBitmap");
+	glad_glColor3b = (PFNGLCOLOR3BPROC)load("glColor3b");
+	glad_glColor3bv = (PFNGLCOLOR3BVPROC)load("glColor3bv");
+	glad_glColor3d = (PFNGLCOLOR3DPROC)load("glColor3d");
+	glad_glColor3dv = (PFNGLCOLOR3DVPROC)load("glColor3dv");
+	glad_glColor3f = (PFNGLCOLOR3FPROC)load("glColor3f");
+	glad_glColor3fv = (PFNGLCOLOR3FVPROC)load("glColor3fv");
+	glad_glColor3i = (PFNGLCOLOR3IPROC)load("glColor3i");
+	glad_glColor3iv = (PFNGLCOLOR3IVPROC)load("glColor3iv");
+	glad_glColor3s = (PFNGLCOLOR3SPROC)load("glColor3s");
+	glad_glColor3sv = (PFNGLCOLOR3SVPROC)load("glColor3sv");
+	glad_glColor3ub = (PFNGLCOLOR3UBPROC)load("glColor3ub");
+	glad_glColor3ubv = (PFNGLCOLOR3UBVPROC)load("glColor3ubv");
+	glad_glColor3ui = (PFNGLCOLOR3UIPROC)load("glColor3ui");
+	glad_glColor3uiv = (PFNGLCOLOR3UIVPROC)load("glColor3uiv");
+	glad_glColor3us = (PFNGLCOLOR3USPROC)load("glColor3us");
+	glad_glColor3usv = (PFNGLCOLOR3USVPROC)load("glColor3usv");
+	glad_glColor4b = (PFNGLCOLOR4BPROC)load("glColor4b");
+	glad_glColor4bv = (PFNGLCOLOR4BVPROC)load("glColor4bv");
+	glad_glColor4d = (PFNGLCOLOR4DPROC)load("glColor4d");
+	glad_glColor4dv = (PFNGLCOLOR4DVPROC)load("glColor4dv");
+	glad_glColor4f = (PFNGLCOLOR4FPROC)load("glColor4f");
+	glad_glColor4fv = (PFNGLCOLOR4FVPROC)load("glColor4fv");
+	glad_glColor4i = (PFNGLCOLOR4IPROC)load("glColor4i");
+	glad_glColor4iv = (PFNGLCOLOR4IVPROC)load("glColor4iv");
+	glad_glColor4s = (PFNGLCOLOR4SPROC)load("glColor4s");
+	glad_glColor4sv = (PFNGLCOLOR4SVPROC)load("glColor4sv");
+	glad_glColor4ub = (PFNGLCOLOR4UBPROC)load("glColor4ub");
+	glad_glColor4ubv = (PFNGLCOLOR4UBVPROC)load("glColor4ubv");
+	glad_glColor4ui = (PFNGLCOLOR4UIPROC)load("glColor4ui");
+	glad_glColor4uiv = (PFNGLCOLOR4UIVPROC)load("glColor4uiv");
+	glad_glColor4us = (PFNGLCOLOR4USPROC)load("glColor4us");
+	glad_glColor4usv = (PFNGLCOLOR4USVPROC)load("glColor4usv");
+	glad_glEdgeFlag = (PFNGLEDGEFLAGPROC)load("glEdgeFlag");
+	glad_glEdgeFlagv = (PFNGLEDGEFLAGVPROC)load("glEdgeFlagv");
+	glad_glEnd = (PFNGLENDPROC)load("glEnd");
+	glad_glIndexd = (PFNGLINDEXDPROC)load("glIndexd");
+	glad_glIndexdv = (PFNGLINDEXDVPROC)load("glIndexdv");
+	glad_glIndexf = (PFNGLINDEXFPROC)load("glIndexf");
+	glad_glIndexfv = (PFNGLINDEXFVPROC)load("glIndexfv");
+	glad_glIndexi = (PFNGLINDEXIPROC)load("glIndexi");
+	glad_glIndexiv = (PFNGLINDEXIVPROC)load("glIndexiv");
+	glad_glIndexs = (PFNGLINDEXSPROC)load("glIndexs");
+	glad_glIndexsv = (PFNGLINDEXSVPROC)load("glIndexsv");
+	glad_glNormal3b = (PFNGLNORMAL3BPROC)load("glNormal3b");
+	glad_glNormal3bv = (PFNGLNORMAL3BVPROC)load("glNormal3bv");
+	glad_glNormal3d = (PFNGLNORMAL3DPROC)load("glNormal3d");
+	glad_glNormal3dv = (PFNGLNORMAL3DVPROC)load("glNormal3dv");
+	glad_glNormal3f = (PFNGLNORMAL3FPROC)load("glNormal3f");
+	glad_glNormal3fv = (PFNGLNORMAL3FVPROC)load("glNormal3fv");
+	glad_glNormal3i = (PFNGLNORMAL3IPROC)load("glNormal3i");
+	glad_glNormal3iv = (PFNGLNORMAL3IVPROC)load("glNormal3iv");
+	glad_glNormal3s = (PFNGLNORMAL3SPROC)load("glNormal3s");
+	glad_glNormal3sv = (PFNGLNORMAL3SVPROC)load("glNormal3sv");
+	glad_glRasterPos2d = (PFNGLRASTERPOS2DPROC)load("glRasterPos2d");
+	glad_glRasterPos2dv = (PFNGLRASTERPOS2DVPROC)load("glRasterPos2dv");
+	glad_glRasterPos2f = (PFNGLRASTERPOS2FPROC)load("glRasterPos2f");
+	glad_glRasterPos2fv = (PFNGLRASTERPOS2FVPROC)load("glRasterPos2fv");
+	glad_glRasterPos2i = (PFNGLRASTERPOS2IPROC)load("glRasterPos2i");
+	glad_glRasterPos2iv = (PFNGLRASTERPOS2IVPROC)load("glRasterPos2iv");
+	glad_glRasterPos2s = (PFNGLRASTERPOS2SPROC)load("glRasterPos2s");
+	glad_glRasterPos2sv = (PFNGLRASTERPOS2SVPROC)load("glRasterPos2sv");
+	glad_glRasterPos3d = (PFNGLRASTERPOS3DPROC)load("glRasterPos3d");
+	glad_glRasterPos3dv = (PFNGLRASTERPOS3DVPROC)load("glRasterPos3dv");
+	glad_glRasterPos3f = (PFNGLRASTERPOS3FPROC)load("glRasterPos3f");
+	glad_glRasterPos3fv = (PFNGLRASTERPOS3FVPROC)load("glRasterPos3fv");
+	glad_glRasterPos3i = (PFNGLRASTERPOS3IPROC)load("glRasterPos3i");
+	glad_glRasterPos3iv = (PFNGLRASTERPOS3IVPROC)load("glRasterPos3iv");
+	glad_glRasterPos3s = (PFNGLRASTERPOS3SPROC)load("glRasterPos3s");
+	glad_glRasterPos3sv = (PFNGLRASTERPOS3SVPROC)load("glRasterPos3sv");
+	glad_glRasterPos4d = (PFNGLRASTERPOS4DPROC)load("glRasterPos4d");
+	glad_glRasterPos4dv = (PFNGLRASTERPOS4DVPROC)load("glRasterPos4dv");
+	glad_glRasterPos4f = (PFNGLRASTERPOS4FPROC)load("glRasterPos4f");
+	glad_glRasterPos4fv = (PFNGLRASTERPOS4FVPROC)load("glRasterPos4fv");
+	glad_glRasterPos4i = (PFNGLRASTERPOS4IPROC)load("glRasterPos4i");
+	glad_glRasterPos4iv = (PFNGLRASTERPOS4IVPROC)load("glRasterPos4iv");
+	glad_glRasterPos4s = (PFNGLRASTERPOS4SPROC)load("glRasterPos4s");
+	glad_glRasterPos4sv = (PFNGLRASTERPOS4SVPROC)load("glRasterPos4sv");
+	glad_glRectd = (PFNGLRECTDPROC)load("glRectd");
+	glad_glRectdv = (PFNGLRECTDVPROC)load("glRectdv");
+	glad_glRectf = (PFNGLRECTFPROC)load("glRectf");
+	glad_glRectfv = (PFNGLRECTFVPROC)load("glRectfv");
+	glad_glRecti = (PFNGLRECTIPROC)load("glRecti");
+	glad_glRectiv = (PFNGLRECTIVPROC)load("glRectiv");
+	glad_glRects = (PFNGLRECTSPROC)load("glRects");
+	glad_glRectsv = (PFNGLRECTSVPROC)load("glRectsv");
+	glad_glTexCoord1d = (PFNGLTEXCOORD1DPROC)load("glTexCoord1d");
+	glad_glTexCoord1dv = (PFNGLTEXCOORD1DVPROC)load("glTexCoord1dv");
+	glad_glTexCoord1f = (PFNGLTEXCOORD1FPROC)load("glTexCoord1f");
+	glad_glTexCoord1fv = (PFNGLTEXCOORD1FVPROC)load("glTexCoord1fv");
+	glad_glTexCoord1i = (PFNGLTEXCOORD1IPROC)load("glTexCoord1i");
+	glad_glTexCoord1iv = (PFNGLTEXCOORD1IVPROC)load("glTexCoord1iv");
+	glad_glTexCoord1s = (PFNGLTEXCOORD1SPROC)load("glTexCoord1s");
+	glad_glTexCoord1sv = (PFNGLTEXCOORD1SVPROC)load("glTexCoord1sv");
+	glad_glTexCoord2d = (PFNGLTEXCOORD2DPROC)load("glTexCoord2d");
+	glad_glTexCoord2dv = (PFNGLTEXCOORD2DVPROC)load("glTexCoord2dv");
+	glad_glTexCoord2f = (PFNGLTEXCOORD2FPROC)load("glTexCoord2f");
+	glad_glTexCoord2fv = (PFNGLTEXCOORD2FVPROC)load("glTexCoord2fv");
+	glad_glTexCoord2i = (PFNGLTEXCOORD2IPROC)load("glTexCoord2i");
+	glad_glTexCoord2iv = (PFNGLTEXCOORD2IVPROC)load("glTexCoord2iv");
+	glad_glTexCoord2s = (PFNGLTEXCOORD2SPROC)load("glTexCoord2s");
+	glad_glTexCoord2sv = (PFNGLTEXCOORD2SVPROC)load("glTexCoord2sv");
+	glad_glTexCoord3d = (PFNGLTEXCOORD3DPROC)load("glTexCoord3d");
+	glad_glTexCoord3dv = (PFNGLTEXCOORD3DVPROC)load("glTexCoord3dv");
+	glad_glTexCoord3f = (PFNGLTEXCOORD3FPROC)load("glTexCoord3f");
+	glad_glTexCoord3fv = (PFNGLTEXCOORD3FVPROC)load("glTexCoord3fv");
+	glad_glTexCoord3i = (PFNGLTEXCOORD3IPROC)load("glTexCoord3i");
+	glad_glTexCoord3iv = (PFNGLTEXCOORD3IVPROC)load("glTexCoord3iv");
+	glad_glTexCoord3s = (PFNGLTEXCOORD3SPROC)load("glTexCoord3s");
+	glad_glTexCoord3sv = (PFNGLTEXCOORD3SVPROC)load("glTexCoord3sv");
+	glad_glTexCoord4d = (PFNGLTEXCOORD4DPROC)load("glTexCoord4d");
+	glad_glTexCoord4dv = (PFNGLTEXCOORD4DVPROC)load("glTexCoord4dv");
+	glad_glTexCoord4f = (PFNGLTEXCOORD4FPROC)load("glTexCoord4f");
+	glad_glTexCoord4fv = (PFNGLTEXCOORD4FVPROC)load("glTexCoord4fv");
+	glad_glTexCoord4i = (PFNGLTEXCOORD4IPROC)load("glTexCoord4i");
+	glad_glTexCoord4iv = (PFNGLTEXCOORD4IVPROC)load("glTexCoord4iv");
+	glad_glTexCoord4s = (PFNGLTEXCOORD4SPROC)load("glTexCoord4s");
+	glad_glTexCoord4sv = (PFNGLTEXCOORD4SVPROC)load("glTexCoord4sv");
+	glad_glVertex2d = (PFNGLVERTEX2DPROC)load("glVertex2d");
+	glad_glVertex2dv = (PFNGLVERTEX2DVPROC)load("glVertex2dv");
+	glad_glVertex2f = (PFNGLVERTEX2FPROC)load("glVertex2f");
+	glad_glVertex2fv = (PFNGLVERTEX2FVPROC)load("glVertex2fv");
+	glad_glVertex2i = (PFNGLVERTEX2IPROC)load("glVertex2i");
+	glad_glVertex2iv = (PFNGLVERTEX2IVPROC)load("glVertex2iv");
+	glad_glVertex2s = (PFNGLVERTEX2SPROC)load("glVertex2s");
+	glad_glVertex2sv = (PFNGLVERTEX2SVPROC)load("glVertex2sv");
+	glad_glVertex3d = (PFNGLVERTEX3DPROC)load("glVertex3d");
+	glad_glVertex3dv = (PFNGLVERTEX3DVPROC)load("glVertex3dv");
+	glad_glVertex3f = (PFNGLVERTEX3FPROC)load("glVertex3f");
+	glad_glVertex3fv = (PFNGLVERTEX3FVPROC)load("glVertex3fv");
+	glad_glVertex3i = (PFNGLVERTEX3IPROC)load("glVertex3i");
+	glad_glVertex3iv = (PFNGLVERTEX3IVPROC)load("glVertex3iv");
+	glad_glVertex3s = (PFNGLVERTEX3SPROC)load("glVertex3s");
+	glad_glVertex3sv = (PFNGLVERTEX3SVPROC)load("glVertex3sv");
+	glad_glVertex4d = (PFNGLVERTEX4DPROC)load("glVertex4d");
+	glad_glVertex4dv = (PFNGLVERTEX4DVPROC)load("glVertex4dv");
+	glad_glVertex4f = (PFNGLVERTEX4FPROC)load("glVertex4f");
+	glad_glVertex4fv = (PFNGLVERTEX4FVPROC)load("glVertex4fv");
+	glad_glVertex4i = (PFNGLVERTEX4IPROC)load("glVertex4i");
+	glad_glVertex4iv = (PFNGLVERTEX4IVPROC)load("glVertex4iv");
+	glad_glVertex4s = (PFNGLVERTEX4SPROC)load("glVertex4s");
+	glad_glVertex4sv = (PFNGLVERTEX4SVPROC)load("glVertex4sv");
+	glad_glClipPlane = (PFNGLCLIPPLANEPROC)load("glClipPlane");
+	glad_glColorMaterial = (PFNGLCOLORMATERIALPROC)load("glColorMaterial");
+	glad_glFogf = (PFNGLFOGFPROC)load("glFogf");
+	glad_glFogfv = (PFNGLFOGFVPROC)load("glFogfv");
+	glad_glFogi = (PFNGLFOGIPROC)load("glFogi");
+	glad_glFogiv = (PFNGLFOGIVPROC)load("glFogiv");
+	glad_glLightf = (PFNGLLIGHTFPROC)load("glLightf");
+	glad_glLightfv = (PFNGLLIGHTFVPROC)load("glLightfv");
+	glad_glLighti = (PFNGLLIGHTIPROC)load("glLighti");
+	glad_glLightiv = (PFNGLLIGHTIVPROC)load("glLightiv");
+	glad_glLightModelf = (PFNGLLIGHTMODELFPROC)load("glLightModelf");
+	glad_glLightModelfv = (PFNGLLIGHTMODELFVPROC)load("glLightModelfv");
+	glad_glLightModeli = (PFNGLLIGHTMODELIPROC)load("glLightModeli");
+	glad_glLightModeliv = (PFNGLLIGHTMODELIVPROC)load("glLightModeliv");
+	glad_glLineStipple = (PFNGLLINESTIPPLEPROC)load("glLineStipple");
+	glad_glMaterialf = (PFNGLMATERIALFPROC)load("glMaterialf");
+	glad_glMaterialfv = (PFNGLMATERIALFVPROC)load("glMaterialfv");
+	glad_glMateriali = (PFNGLMATERIALIPROC)load("glMateriali");
+	glad_glMaterialiv = (PFNGLMATERIALIVPROC)load("glMaterialiv");
+	glad_glPolygonStipple = (PFNGLPOLYGONSTIPPLEPROC)load("glPolygonStipple");
+	glad_glShadeModel = (PFNGLSHADEMODELPROC)load("glShadeModel");
+	glad_glTexEnvf = (PFNGLTEXENVFPROC)load("glTexEnvf");
+	glad_glTexEnvfv = (PFNGLTEXENVFVPROC)load("glTexEnvfv");
+	glad_glTexEnvi = (PFNGLTEXENVIPROC)load("glTexEnvi");
+	glad_glTexEnviv = (PFNGLTEXENVIVPROC)load("glTexEnviv");
+	glad_glTexGend = (PFNGLTEXGENDPROC)load("glTexGend");
+	glad_glTexGendv = (PFNGLTEXGENDVPROC)load("glTexGendv");
+	glad_glTexGenf = (PFNGLTEXGENFPROC)load("glTexGenf");
+	glad_glTexGenfv = (PFNGLTEXGENFVPROC)load("glTexGenfv");
+	glad_glTexGeni = (PFNGLTEXGENIPROC)load("glTexGeni");
+	glad_glTexGeniv = (PFNGLTEXGENIVPROC)load("glTexGeniv");
+	glad_glFeedbackBuffer = (PFNGLFEEDBACKBUFFERPROC)load("glFeedbackBuffer");
+	glad_glSelectBuffer = (PFNGLSELECTBUFFERPROC)load("glSelectBuffer");
+	glad_glRenderMode = (PFNGLRENDERMODEPROC)load("glRenderMode");
+	glad_glInitNames = (PFNGLINITNAMESPROC)load("glInitNames");
+	glad_glLoadName = (PFNGLLOADNAMEPROC)load("glLoadName");
+	glad_glPassThrough = (PFNGLPASSTHROUGHPROC)load("glPassThrough");
+	glad_glPopName = (PFNGLPOPNAMEPROC)load("glPopName");
+	glad_glPushName = (PFNGLPUSHNAMEPROC)load("glPushName");
+	glad_glClearAccum = (PFNGLCLEARACCUMPROC)load("glClearAccum");
+	glad_glClearIndex = (PFNGLCLEARINDEXPROC)load("glClearIndex");
+	glad_glIndexMask = (PFNGLINDEXMASKPROC)load("glIndexMask");
+	glad_glAccum = (PFNGLACCUMPROC)load("glAccum");
+	glad_glPopAttrib = (PFNGLPOPATTRIBPROC)load("glPopAttrib");
+	glad_glPushAttrib = (PFNGLPUSHATTRIBPROC)load("glPushAttrib");
+	glad_glMap1d = (PFNGLMAP1DPROC)load("glMap1d");
+	glad_glMap1f = (PFNGLMAP1FPROC)load("glMap1f");
+	glad_glMap2d = (PFNGLMAP2DPROC)load("glMap2d");
+	glad_glMap2f = (PFNGLMAP2FPROC)load("glMap2f");
+	glad_glMapGrid1d = (PFNGLMAPGRID1DPROC)load("glMapGrid1d");
+	glad_glMapGrid1f = (PFNGLMAPGRID1FPROC)load("glMapGrid1f");
+	glad_glMapGrid2d = (PFNGLMAPGRID2DPROC)load("glMapGrid2d");
+	glad_glMapGrid2f = (PFNGLMAPGRID2FPROC)load("glMapGrid2f");
+	glad_glEvalCoord1d = (PFNGLEVALCOORD1DPROC)load("glEvalCoord1d");
+	glad_glEvalCoord1dv = (PFNGLEVALCOORD1DVPROC)load("glEvalCoord1dv");
+	glad_glEvalCoord1f = (PFNGLEVALCOORD1FPROC)load("glEvalCoord1f");
+	glad_glEvalCoord1fv = (PFNGLEVALCOORD1FVPROC)load("glEvalCoord1fv");
+	glad_glEvalCoord2d = (PFNGLEVALCOORD2DPROC)load("glEvalCoord2d");
+	glad_glEvalCoord2dv = (PFNGLEVALCOORD2DVPROC)load("glEvalCoord2dv");
+	glad_glEvalCoord2f = (PFNGLEVALCOORD2FPROC)load("glEvalCoord2f");
+	glad_glEvalCoord2fv = (PFNGLEVALCOORD2FVPROC)load("glEvalCoord2fv");
+	glad_glEvalMesh1 = (PFNGLEVALMESH1PROC)load("glEvalMesh1");
+	glad_glEvalPoint1 = (PFNGLEVALPOINT1PROC)load("glEvalPoint1");
+	glad_glEvalMesh2 = (PFNGLEVALMESH2PROC)load("glEvalMesh2");
+	glad_glEvalPoint2 = (PFNGLEVALPOINT2PROC)load("glEvalPoint2");
+	glad_glAlphaFunc = (PFNGLALPHAFUNCPROC)load("glAlphaFunc");
+	glad_glPixelZoom = (PFNGLPIXELZOOMPROC)load("glPixelZoom");
+	glad_glPixelTransferf = (PFNGLPIXELTRANSFERFPROC)load("glPixelTransferf");
+	glad_glPixelTransferi = (PFNGLPIXELTRANSFERIPROC)load("glPixelTransferi");
+	glad_glPixelMapfv = (PFNGLPIXELMAPFVPROC)load("glPixelMapfv");
+	glad_glPixelMapuiv = (PFNGLPIXELMAPUIVPROC)load("glPixelMapuiv");
+	glad_glPixelMapusv = (PFNGLPIXELMAPUSVPROC)load("glPixelMapusv");
+	glad_glCopyPixels = (PFNGLCOPYPIXELSPROC)load("glCopyPixels");
+	glad_glDrawPixels = (PFNGLDRAWPIXELSPROC)load("glDrawPixels");
+	glad_glGetClipPlane = (PFNGLGETCLIPPLANEPROC)load("glGetClipPlane");
+	glad_glGetLightfv = (PFNGLGETLIGHTFVPROC)load("glGetLightfv");
+	glad_glGetLightiv = (PFNGLGETLIGHTIVPROC)load("glGetLightiv");
+	glad_glGetMapdv = (PFNGLGETMAPDVPROC)load("glGetMapdv");
+	glad_glGetMapfv = (PFNGLGETMAPFVPROC)load("glGetMapfv");
+	glad_glGetMapiv = (PFNGLGETMAPIVPROC)load("glGetMapiv");
+	glad_glGetMaterialfv = (PFNGLGETMATERIALFVPROC)load("glGetMaterialfv");
+	glad_glGetMaterialiv = (PFNGLGETMATERIALIVPROC)load("glGetMaterialiv");
+	glad_glGetPixelMapfv = (PFNGLGETPIXELMAPFVPROC)load("glGetPixelMapfv");
+	glad_glGetPixelMapuiv = (PFNGLGETPIXELMAPUIVPROC)load("glGetPixelMapuiv");
+	glad_glGetPixelMapusv = (PFNGLGETPIXELMAPUSVPROC)load("glGetPixelMapusv");
+	glad_glGetPolygonStipple = (PFNGLGETPOLYGONSTIPPLEPROC)load("glGetPolygonStipple");
+	glad_glGetTexEnvfv = (PFNGLGETTEXENVFVPROC)load("glGetTexEnvfv");
+	glad_glGetTexEnviv = (PFNGLGETTEXENVIVPROC)load("glGetTexEnviv");
+	glad_glGetTexGendv = (PFNGLGETTEXGENDVPROC)load("glGetTexGendv");
+	glad_glGetTexGenfv = (PFNGLGETTEXGENFVPROC)load("glGetTexGenfv");
+	glad_glGetTexGeniv = (PFNGLGETTEXGENIVPROC)load("glGetTexGeniv");
+	glad_glIsList = (PFNGLISLISTPROC)load("glIsList");
+	glad_glFrustum = (PFNGLFRUSTUMPROC)load("glFrustum");
+	glad_glLoadIdentity = (PFNGLLOADIDENTITYPROC)load("glLoadIdentity");
+	glad_glLoadMatrixf = (PFNGLLOADMATRIXFPROC)load("glLoadMatrixf");
+	glad_glLoadMatrixd = (PFNGLLOADMATRIXDPROC)load("glLoadMatrixd");
+	glad_glMatrixMode = (PFNGLMATRIXMODEPROC)load("glMatrixMode");
+	glad_glMultMatrixf = (PFNGLMULTMATRIXFPROC)load("glMultMatrixf");
+	glad_glMultMatrixd = (PFNGLMULTMATRIXDPROC)load("glMultMatrixd");
+	glad_glOrtho = (PFNGLORTHOPROC)load("glOrtho");
+	glad_glPopMatrix = (PFNGLPOPMATRIXPROC)load("glPopMatrix");
+	glad_glPushMatrix = (PFNGLPUSHMATRIXPROC)load("glPushMatrix");
+	glad_glRotated = (PFNGLROTATEDPROC)load("glRotated");
+	glad_glRotatef = (PFNGLROTATEFPROC)load("glRotatef");
+	glad_glScaled = (PFNGLSCALEDPROC)load("glScaled");
+	glad_glScalef = (PFNGLSCALEFPROC)load("glScalef");
+	glad_glTranslated = (PFNGLTRANSLATEDPROC)load("glTranslated");
+	glad_glTranslatef = (PFNGLTRANSLATEFPROC)load("glTranslatef");
+}
+static void load_GL_VERSION_1_1(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_1_1) return;
+	glad_glDrawArrays = (PFNGLDRAWARRAYSPROC)load("glDrawArrays");
+	glad_glDrawElements = (PFNGLDRAWELEMENTSPROC)load("glDrawElements");
+	glad_glGetPointerv = (PFNGLGETPOINTERVPROC)load("glGetPointerv");
+	glad_glPolygonOffset = (PFNGLPOLYGONOFFSETPROC)load("glPolygonOffset");
+	glad_glCopyTexImage1D = (PFNGLCOPYTEXIMAGE1DPROC)load("glCopyTexImage1D");
+	glad_glCopyTexImage2D = (PFNGLCOPYTEXIMAGE2DPROC)load("glCopyTexImage2D");
+	glad_glCopyTexSubImage1D = (PFNGLCOPYTEXSUBIMAGE1DPROC)load("glCopyTexSubImage1D");
+	glad_glCopyTexSubImage2D = (PFNGLCOPYTEXSUBIMAGE2DPROC)load("glCopyTexSubImage2D");
+	glad_glTexSubImage1D = (PFNGLTEXSUBIMAGE1DPROC)load("glTexSubImage1D");
+	glad_glTexSubImage2D = (PFNGLTEXSUBIMAGE2DPROC)load("glTexSubImage2D");
+	glad_glBindTexture = (PFNGLBINDTEXTUREPROC)load("glBindTexture");
+	glad_glDeleteTextures = (PFNGLDELETETEXTURESPROC)load("glDeleteTextures");
+	glad_glGenTextures = (PFNGLGENTEXTURESPROC)load("glGenTextures");
+	glad_glIsTexture = (PFNGLISTEXTUREPROC)load("glIsTexture");
+	glad_glArrayElement = (PFNGLARRAYELEMENTPROC)load("glArrayElement");
+	glad_glColorPointer = (PFNGLCOLORPOINTERPROC)load("glColorPointer");
+	glad_glDisableClientState = (PFNGLDISABLECLIENTSTATEPROC)load("glDisableClientState");
+	glad_glEdgeFlagPointer = (PFNGLEDGEFLAGPOINTERPROC)load("glEdgeFlagPointer");
+	glad_glEnableClientState = (PFNGLENABLECLIENTSTATEPROC)load("glEnableClientState");
+	glad_glIndexPointer = (PFNGLINDEXPOINTERPROC)load("glIndexPointer");
+	glad_glInterleavedArrays = (PFNGLINTERLEAVEDARRAYSPROC)load("glInterleavedArrays");
+	glad_glNormalPointer = (PFNGLNORMALPOINTERPROC)load("glNormalPointer");
+	glad_glTexCoordPointer = (PFNGLTEXCOORDPOINTERPROC)load("glTexCoordPointer");
+	glad_glVertexPointer = (PFNGLVERTEXPOINTERPROC)load("glVertexPointer");
+	glad_glAreTexturesResident = (PFNGLARETEXTURESRESIDENTPROC)load("glAreTexturesResident");
+	glad_glPrioritizeTextures = (PFNGLPRIORITIZETEXTURESPROC)load("glPrioritizeTextures");
+	glad_glIndexub = (PFNGLINDEXUBPROC)load("glIndexub");
+	glad_glIndexubv = (PFNGLINDEXUBVPROC)load("glIndexubv");
+	glad_glPopClientAttrib = (PFNGLPOPCLIENTATTRIBPROC)load("glPopClientAttrib");
+	glad_glPushClientAttrib = (PFNGLPUSHCLIENTATTRIBPROC)load("glPushClientAttrib");
+}
+static void load_GL_VERSION_1_2(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_1_2) return;
+	glad_glDrawRangeElements = (PFNGLDRAWRANGEELEMENTSPROC)load("glDrawRangeElements");
+	glad_glTexImage3D = (PFNGLTEXIMAGE3DPROC)load("glTexImage3D");
+	glad_glTexSubImage3D = (PFNGLTEXSUBIMAGE3DPROC)load("glTexSubImage3D");
+	glad_glCopyTexSubImage3D = (PFNGLCOPYTEXSUBIMAGE3DPROC)load("glCopyTexSubImage3D");
+}
+static void load_GL_VERSION_1_3(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_1_3) return;
+	glad_glActiveTexture = (PFNGLACTIVETEXTUREPROC)load("glActiveTexture");
+	glad_glSampleCoverage = (PFNGLSAMPLECOVERAGEPROC)load("glSampleCoverage");
+	glad_glCompressedTexImage3D = (PFNGLCOMPRESSEDTEXIMAGE3DPROC)load("glCompressedTexImage3D");
+	glad_glCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC)load("glCompressedTexImage2D");
+	glad_glCompressedTexImage1D = (PFNGLCOMPRESSEDTEXIMAGE1DPROC)load("glCompressedTexImage1D");
+	glad_glCompressedTexSubImage3D = (PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC)load("glCompressedTexSubImage3D");
+	glad_glCompressedTexSubImage2D = (PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC)load("glCompressedTexSubImage2D");
+	glad_glCompressedTexSubImage1D = (PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC)load("glCompressedTexSubImage1D");
+	glad_glGetCompressedTexImage = (PFNGLGETCOMPRESSEDTEXIMAGEPROC)load("glGetCompressedTexImage");
+	glad_glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)load("glClientActiveTexture");
+	glad_glMultiTexCoord1d = (PFNGLMULTITEXCOORD1DPROC)load("glMultiTexCoord1d");
+	glad_glMultiTexCoord1dv = (PFNGLMULTITEXCOORD1DVPROC)load("glMultiTexCoord1dv");
+	glad_glMultiTexCoord1f = (PFNGLMULTITEXCOORD1FPROC)load("glMultiTexCoord1f");
+	glad_glMultiTexCoord1fv = (PFNGLMULTITEXCOORD1FVPROC)load("glMultiTexCoord1fv");
+	glad_glMultiTexCoord1i = (PFNGLMULTITEXCOORD1IPROC)load("glMultiTexCoord1i");
+	glad_glMultiTexCoord1iv = (PFNGLMULTITEXCOORD1IVPROC)load("glMultiTexCoord1iv");
+	glad_glMultiTexCoord1s = (PFNGLMULTITEXCOORD1SPROC)load("glMultiTexCoord1s");
+	glad_glMultiTexCoord1sv = (PFNGLMULTITEXCOORD1SVPROC)load("glMultiTexCoord1sv");
+	glad_glMultiTexCoord2d = (PFNGLMULTITEXCOORD2DPROC)load("glMultiTexCoord2d");
+	glad_glMultiTexCoord2dv = (PFNGLMULTITEXCOORD2DVPROC)load("glMultiTexCoord2dv");
+	glad_glMultiTexCoord2f = (PFNGLMULTITEXCOORD2FPROC)load("glMultiTexCoord2f");
+	glad_glMultiTexCoord2fv = (PFNGLMULTITEXCOORD2FVPROC)load("glMultiTexCoord2fv");
+	glad_glMultiTexCoord2i = (PFNGLMULTITEXCOORD2IPROC)load("glMultiTexCoord2i");
+	glad_glMultiTexCoord2iv = (PFNGLMULTITEXCOORD2IVPROC)load("glMultiTexCoord2iv");
+	glad_glMultiTexCoord2s = (PFNGLMULTITEXCOORD2SPROC)load("glMultiTexCoord2s");
+	glad_glMultiTexCoord2sv = (PFNGLMULTITEXCOORD2SVPROC)load("glMultiTexCoord2sv");
+	glad_glMultiTexCoord3d = (PFNGLMULTITEXCOORD3DPROC)load("glMultiTexCoord3d");
+	glad_glMultiTexCoord3dv = (PFNGLMULTITEXCOORD3DVPROC)load("glMultiTexCoord3dv");
+	glad_glMultiTexCoord3f = (PFNGLMULTITEXCOORD3FPROC)load("glMultiTexCoord3f");
+	glad_glMultiTexCoord3fv = (PFNGLMULTITEXCOORD3FVPROC)load("glMultiTexCoord3fv");
+	glad_glMultiTexCoord3i = (PFNGLMULTITEXCOORD3IPROC)load("glMultiTexCoord3i");
+	glad_glMultiTexCoord3iv = (PFNGLMULTITEXCOORD3IVPROC)load("glMultiTexCoord3iv");
+	glad_glMultiTexCoord3s = (PFNGLMULTITEXCOORD3SPROC)load("glMultiTexCoord3s");
+	glad_glMultiTexCoord3sv = (PFNGLMULTITEXCOORD3SVPROC)load("glMultiTexCoord3sv");
+	glad_glMultiTexCoord4d = (PFNGLMULTITEXCOORD4DPROC)load("glMultiTexCoord4d");
+	glad_glMultiTexCoord4dv = (PFNGLMULTITEXCOORD4DVPROC)load("glMultiTexCoord4dv");
+	glad_glMultiTexCoord4f = (PFNGLMULTITEXCOORD4FPROC)load("glMultiTexCoord4f");
+	glad_glMultiTexCoord4fv = (PFNGLMULTITEXCOORD4FVPROC)load("glMultiTexCoord4fv");
+	glad_glMultiTexCoord4i = (PFNGLMULTITEXCOORD4IPROC)load("glMultiTexCoord4i");
+	glad_glMultiTexCoord4iv = (PFNGLMULTITEXCOORD4IVPROC)load("glMultiTexCoord4iv");
+	glad_glMultiTexCoord4s = (PFNGLMULTITEXCOORD4SPROC)load("glMultiTexCoord4s");
+	glad_glMultiTexCoord4sv = (PFNGLMULTITEXCOORD4SVPROC)load("glMultiTexCoord4sv");
+	glad_glLoadTransposeMatrixf = (PFNGLLOADTRANSPOSEMATRIXFPROC)load("glLoadTransposeMatrixf");
+	glad_glLoadTransposeMatrixd = (PFNGLLOADTRANSPOSEMATRIXDPROC)load("glLoadTransposeMatrixd");
+	glad_glMultTransposeMatrixf = (PFNGLMULTTRANSPOSEMATRIXFPROC)load("glMultTransposeMatrixf");
+	glad_glMultTransposeMatrixd = (PFNGLMULTTRANSPOSEMATRIXDPROC)load("glMultTransposeMatrixd");
+}
+static void load_GL_VERSION_1_4(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_1_4) return;
+	glad_glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)load("glBlendFuncSeparate");
+	glad_glMultiDrawArrays = (PFNGLMULTIDRAWARRAYSPROC)load("glMultiDrawArrays");
+	glad_glMultiDrawElements = (PFNGLMULTIDRAWELEMENTSPROC)load("glMultiDrawElements");
+	glad_glPointParameterf = (PFNGLPOINTPARAMETERFPROC)load("glPointParameterf");
+	glad_glPointParameterfv = (PFNGLPOINTPARAMETERFVPROC)load("glPointParameterfv");
+	glad_glPointParameteri = (PFNGLPOINTPARAMETERIPROC)load("glPointParameteri");
+	glad_glPointParameteriv = (PFNGLPOINTPARAMETERIVPROC)load("glPointParameteriv");
+	glad_glFogCoordf = (PFNGLFOGCOORDFPROC)load("glFogCoordf");
+	glad_glFogCoordfv = (PFNGLFOGCOORDFVPROC)load("glFogCoordfv");
+	glad_glFogCoordd = (PFNGLFOGCOORDDPROC)load("glFogCoordd");
+	glad_glFogCoorddv = (PFNGLFOGCOORDDVPROC)load("glFogCoorddv");
+	glad_glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)load("glFogCoordPointer");
+	glad_glSecondaryColor3b = (PFNGLSECONDARYCOLOR3BPROC)load("glSecondaryColor3b");
+	glad_glSecondaryColor3bv = (PFNGLSECONDARYCOLOR3BVPROC)load("glSecondaryColor3bv");
+	glad_glSecondaryColor3d = (PFNGLSECONDARYCOLOR3DPROC)load("glSecondaryColor3d");
+	glad_glSecondaryColor3dv = (PFNGLSECONDARYCOLOR3DVPROC)load("glSecondaryColor3dv");
+	glad_glSecondaryColor3f = (PFNGLSECONDARYCOLOR3FPROC)load("glSecondaryColor3f");
+	glad_glSecondaryColor3fv = (PFNGLSECONDARYCOLOR3FVPROC)load("glSecondaryColor3fv");
+	glad_glSecondaryColor3i = (PFNGLSECONDARYCOLOR3IPROC)load("glSecondaryColor3i");
+	glad_glSecondaryColor3iv = (PFNGLSECONDARYCOLOR3IVPROC)load("glSecondaryColor3iv");
+	glad_glSecondaryColor3s = (PFNGLSECONDARYCOLOR3SPROC)load("glSecondaryColor3s");
+	glad_glSecondaryColor3sv = (PFNGLSECONDARYCOLOR3SVPROC)load("glSecondaryColor3sv");
+	glad_glSecondaryColor3ub = (PFNGLSECONDARYCOLOR3UBPROC)load("glSecondaryColor3ub");
+	glad_glSecondaryColor3ubv = (PFNGLSECONDARYCOLOR3UBVPROC)load("glSecondaryColor3ubv");
+	glad_glSecondaryColor3ui = (PFNGLSECONDARYCOLOR3UIPROC)load("glSecondaryColor3ui");
+	glad_glSecondaryColor3uiv = (PFNGLSECONDARYCOLOR3UIVPROC)load("glSecondaryColor3uiv");
+	glad_glSecondaryColor3us = (PFNGLSECONDARYCOLOR3USPROC)load("glSecondaryColor3us");
+	glad_glSecondaryColor3usv = (PFNGLSECONDARYCOLOR3USVPROC)load("glSecondaryColor3usv");
+	glad_glSecondaryColorPointer = (PFNGLSECONDARYCOLORPOINTERPROC)load("glSecondaryColorPointer");
+	glad_glWindowPos2d = (PFNGLWINDOWPOS2DPROC)load("glWindowPos2d");
+	glad_glWindowPos2dv = (PFNGLWINDOWPOS2DVPROC)load("glWindowPos2dv");
+	glad_glWindowPos2f = (PFNGLWINDOWPOS2FPROC)load("glWindowPos2f");
+	glad_glWindowPos2fv = (PFNGLWINDOWPOS2FVPROC)load("glWindowPos2fv");
+	glad_glWindowPos2i = (PFNGLWINDOWPOS2IPROC)load("glWindowPos2i");
+	glad_glWindowPos2iv = (PFNGLWINDOWPOS2IVPROC)load("glWindowPos2iv");
+	glad_glWindowPos2s = (PFNGLWINDOWPOS2SPROC)load("glWindowPos2s");
+	glad_glWindowPos2sv = (PFNGLWINDOWPOS2SVPROC)load("glWindowPos2sv");
+	glad_glWindowPos3d = (PFNGLWINDOWPOS3DPROC)load("glWindowPos3d");
+	glad_glWindowPos3dv = (PFNGLWINDOWPOS3DVPROC)load("glWindowPos3dv");
+	glad_glWindowPos3f = (PFNGLWINDOWPOS3FPROC)load("glWindowPos3f");
+	glad_glWindowPos3fv = (PFNGLWINDOWPOS3FVPROC)load("glWindowPos3fv");
+	glad_glWindowPos3i = (PFNGLWINDOWPOS3IPROC)load("glWindowPos3i");
+	glad_glWindowPos3iv = (PFNGLWINDOWPOS3IVPROC)load("glWindowPos3iv");
+	glad_glWindowPos3s = (PFNGLWINDOWPOS3SPROC)load("glWindowPos3s");
+	glad_glWindowPos3sv = (PFNGLWINDOWPOS3SVPROC)load("glWindowPos3sv");
+	glad_glBlendColor = (PFNGLBLENDCOLORPROC)load("glBlendColor");
+	glad_glBlendEquation = (PFNGLBLENDEQUATIONPROC)load("glBlendEquation");
+}
+static void load_GL_VERSION_1_5(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_1_5) return;
+	glad_glGenQueries = (PFNGLGENQUERIESPROC)load("glGenQueries");
+	glad_glDeleteQueries = (PFNGLDELETEQUERIESPROC)load("glDeleteQueries");
+	glad_glIsQuery = (PFNGLISQUERYPROC)load("glIsQuery");
+	glad_glBeginQuery = (PFNGLBEGINQUERYPROC)load("glBeginQuery");
+	glad_glEndQuery = (PFNGLENDQUERYPROC)load("glEndQuery");
+	glad_glGetQueryiv = (PFNGLGETQUERYIVPROC)load("glGetQueryiv");
+	glad_glGetQueryObjectiv = (PFNGLGETQUERYOBJECTIVPROC)load("glGetQueryObjectiv");
+	glad_glGetQueryObjectuiv = (PFNGLGETQUERYOBJECTUIVPROC)load("glGetQueryObjectuiv");
+	glad_glBindBuffer = (PFNGLBINDBUFFERPROC)load("glBindBuffer");
+	glad_glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)load("glDeleteBuffers");
+	glad_glGenBuffers = (PFNGLGENBUFFERSPROC)load("glGenBuffers");
+	glad_glIsBuffer = (PFNGLISBUFFERPROC)load("glIsBuffer");
+	glad_glBufferData = (PFNGLBUFFERDATAPROC)load("glBufferData");
+	glad_glBufferSubData = (PFNGLBUFFERSUBDATAPROC)load("glBufferSubData");
+	glad_glGetBufferSubData = (PFNGLGETBUFFERSUBDATAPROC)load("glGetBufferSubData");
+	glad_glMapBuffer = (PFNGLMAPBUFFERPROC)load("glMapBuffer");
+	glad_glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)load("glUnmapBuffer");
+	glad_glGetBufferParameteriv = (PFNGLGETBUFFERPARAMETERIVPROC)load("glGetBufferParameteriv");
+	glad_glGetBufferPointerv = (PFNGLGETBUFFERPOINTERVPROC)load("glGetBufferPointerv");
+}
+static void load_GL_VERSION_2_0(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_2_0) return;
+	glad_glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)load("glBlendEquationSeparate");
+	glad_glDrawBuffers = (PFNGLDRAWBUFFERSPROC)load("glDrawBuffers");
+	glad_glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)load("glStencilOpSeparate");
+	glad_glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)load("glStencilFuncSeparate");
+	glad_glStencilMaskSeparate = (PFNGLSTENCILMASKSEPARATEPROC)load("glStencilMaskSeparate");
+	glad_glAttachShader = (PFNGLATTACHSHADERPROC)load("glAttachShader");
+	glad_glBindAttribLocation = (PFNGLBINDATTRIBLOCATIONPROC)load("glBindAttribLocation");
+	glad_glCompileShader = (PFNGLCOMPILESHADERPROC)load("glCompileShader");
+	glad_glCreateProgram = (PFNGLCREATEPROGRAMPROC)load("glCreateProgram");
+	glad_glCreateShader = (PFNGLCREATESHADERPROC)load("glCreateShader");
+	glad_glDeleteProgram = (PFNGLDELETEPROGRAMPROC)load("glDeleteProgram");
+	glad_glDeleteShader = (PFNGLDELETESHADERPROC)load("glDeleteShader");
+	glad_glDetachShader = (PFNGLDETACHSHADERPROC)load("glDetachShader");
+	glad_glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)load("glDisableVertexAttribArray");
+	glad_glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)load("glEnableVertexAttribArray");
+	glad_glGetActiveAttrib = (PFNGLGETACTIVEATTRIBPROC)load("glGetActiveAttrib");
+	glad_glGetActiveUniform = (PFNGLGETACTIVEUNIFORMPROC)load("glGetActiveUniform");
+	glad_glGetAttachedShaders = (PFNGLGETATTACHEDSHADERSPROC)load("glGetAttachedShaders");
+	glad_glGetAttribLocation = (PFNGLGETATTRIBLOCATIONPROC)load("glGetAttribLocation");
+	glad_glGetProgramiv = (PFNGLGETPROGRAMIVPROC)load("glGetProgramiv");
+	glad_glGetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC)load("glGetProgramInfoLog");
+	glad_glGetShaderiv = (PFNGLGETSHADERIVPROC)load("glGetShaderiv");
+	glad_glGetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC)load("glGetShaderInfoLog");
+	glad_glGetShaderSource = (PFNGLGETSHADERSOURCEPROC)load("glGetShaderSource");
+	glad_glGetUniformLocation = (PFNGLGETUNIFORMLOCATIONPROC)load("glGetUniformLocation");
+	glad_glGetUniformfv = (PFNGLGETUNIFORMFVPROC)load("glGetUniformfv");
+	glad_glGetUniformiv = (PFNGLGETUNIFORMIVPROC)load("glGetUniformiv");
+	glad_glGetVertexAttribdv = (PFNGLGETVERTEXATTRIBDVPROC)load("glGetVertexAttribdv");
+	glad_glGetVertexAttribfv = (PFNGLGETVERTEXATTRIBFVPROC)load("glGetVertexAttribfv");
+	glad_glGetVertexAttribiv = (PFNGLGETVERTEXATTRIBIVPROC)load("glGetVertexAttribiv");
+	glad_glGetVertexAttribPointerv = (PFNGLGETVERTEXATTRIBPOINTERVPROC)load("glGetVertexAttribPointerv");
+	glad_glIsProgram = (PFNGLISPROGRAMPROC)load("glIsProgram");
+	glad_glIsShader = (PFNGLISSHADERPROC)load("glIsShader");
+	glad_glLinkProgram = (PFNGLLINKPROGRAMPROC)load("glLinkProgram");
+	glad_glShaderSource = (PFNGLSHADERSOURCEPROC)load("glShaderSource");
+	glad_glUseProgram = (PFNGLUSEPROGRAMPROC)load("glUseProgram");
+	glad_glUniform1f = (PFNGLUNIFORM1FPROC)load("glUniform1f");
+	glad_glUniform2f = (PFNGLUNIFORM2FPROC)load("glUniform2f");
+	glad_glUniform3f = (PFNGLUNIFORM3FPROC)load("glUniform3f");
+	glad_glUniform4f = (PFNGLUNIFORM4FPROC)load("glUniform4f");
+	glad_glUniform1i = (PFNGLUNIFORM1IPROC)load("glUniform1i");
+	glad_glUniform2i = (PFNGLUNIFORM2IPROC)load("glUniform2i");
+	glad_glUniform3i = (PFNGLUNIFORM3IPROC)load("glUniform3i");
+	glad_glUniform4i = (PFNGLUNIFORM4IPROC)load("glUniform4i");
+	glad_glUniform1fv = (PFNGLUNIFORM1FVPROC)load("glUniform1fv");
+	glad_glUniform2fv = (PFNGLUNIFORM2FVPROC)load("glUniform2fv");
+	glad_glUniform3fv = (PFNGLUNIFORM3FVPROC)load("glUniform3fv");
+	glad_glUniform4fv = (PFNGLUNIFORM4FVPROC)load("glUniform4fv");
+	glad_glUniform1iv = (PFNGLUNIFORM1IVPROC)load("glUniform1iv");
+	glad_glUniform2iv = (PFNGLUNIFORM2IVPROC)load("glUniform2iv");
+	glad_glUniform3iv = (PFNGLUNIFORM3IVPROC)load("glUniform3iv");
+	glad_glUniform4iv = (PFNGLUNIFORM4IVPROC)load("glUniform4iv");
+	glad_glUniformMatrix2fv = (PFNGLUNIFORMMATRIX2FVPROC)load("glUniformMatrix2fv");
+	glad_glUniformMatrix3fv = (PFNGLUNIFORMMATRIX3FVPROC)load("glUniformMatrix3fv");
+	glad_glUniformMatrix4fv = (PFNGLUNIFORMMATRIX4FVPROC)load("glUniformMatrix4fv");
+	glad_glValidateProgram = (PFNGLVALIDATEPROGRAMPROC)load("glValidateProgram");
+	glad_glVertexAttrib1d = (PFNGLVERTEXATTRIB1DPROC)load("glVertexAttrib1d");
+	glad_glVertexAttrib1dv = (PFNGLVERTEXATTRIB1DVPROC)load("glVertexAttrib1dv");
+	glad_glVertexAttrib1f = (PFNGLVERTEXATTRIB1FPROC)load("glVertexAttrib1f");
+	glad_glVertexAttrib1fv = (PFNGLVERTEXATTRIB1FVPROC)load("glVertexAttrib1fv");
+	glad_glVertexAttrib1s = (PFNGLVERTEXATTRIB1SPROC)load("glVertexAttrib1s");
+	glad_glVertexAttrib1sv = (PFNGLVERTEXATTRIB1SVPROC)load("glVertexAttrib1sv");
+	glad_glVertexAttrib2d = (PFNGLVERTEXATTRIB2DPROC)load("glVertexAttrib2d");
+	glad_glVertexAttrib2dv = (PFNGLVERTEXATTRIB2DVPROC)load("glVertexAttrib2dv");
+	glad_glVertexAttrib2f = (PFNGLVERTEXATTRIB2FPROC)load("glVertexAttrib2f");
+	glad_glVertexAttrib2fv = (PFNGLVERTEXATTRIB2FVPROC)load("glVertexAttrib2fv");
+	glad_glVertexAttrib2s = (PFNGLVERTEXATTRIB2SPROC)load("glVertexAttrib2s");
+	glad_glVertexAttrib2sv = (PFNGLVERTEXATTRIB2SVPROC)load("glVertexAttrib2sv");
+	glad_glVertexAttrib3d = (PFNGLVERTEXATTRIB3DPROC)load("glVertexAttrib3d");
+	glad_glVertexAttrib3dv = (PFNGLVERTEXATTRIB3DVPROC)load("glVertexAttrib3dv");
+	glad_glVertexAttrib3f = (PFNGLVERTEXATTRIB3FPROC)load("glVertexAttrib3f");
+	glad_glVertexAttrib3fv = (PFNGLVERTEXATTRIB3FVPROC)load("glVertexAttrib3fv");
+	glad_glVertexAttrib3s = (PFNGLVERTEXATTRIB3SPROC)load("glVertexAttrib3s");
+	glad_glVertexAttrib3sv = (PFNGLVERTEXATTRIB3SVPROC)load("glVertexAttrib3sv");
+	glad_glVertexAttrib4Nbv = (PFNGLVERTEXATTRIB4NBVPROC)load("glVertexAttrib4Nbv");
+	glad_glVertexAttrib4Niv = (PFNGLVERTEXATTRIB4NIVPROC)load("glVertexAttrib4Niv");
+	glad_glVertexAttrib4Nsv = (PFNGLVERTEXATTRIB4NSVPROC)load("glVertexAttrib4Nsv");
+	glad_glVertexAttrib4Nub = (PFNGLVERTEXATTRIB4NUBPROC)load("glVertexAttrib4Nub");
+	glad_glVertexAttrib4Nubv = (PFNGLVERTEXATTRIB4NUBVPROC)load("glVertexAttrib4Nubv");
+	glad_glVertexAttrib4Nuiv = (PFNGLVERTEXATTRIB4NUIVPROC)load("glVertexAttrib4Nuiv");
+	glad_glVertexAttrib4Nusv = (PFNGLVERTEXATTRIB4NUSVPROC)load("glVertexAttrib4Nusv");
+	glad_glVertexAttrib4bv = (PFNGLVERTEXATTRIB4BVPROC)load("glVertexAttrib4bv");
+	glad_glVertexAttrib4d = (PFNGLVERTEXATTRIB4DPROC)load("glVertexAttrib4d");
+	glad_glVertexAttrib4dv = (PFNGLVERTEXATTRIB4DVPROC)load("glVertexAttrib4dv");
+	glad_glVertexAttrib4f = (PFNGLVERTEXATTRIB4FPROC)load("glVertexAttrib4f");
+	glad_glVertexAttrib4fv = (PFNGLVERTEXATTRIB4FVPROC)load("glVertexAttrib4fv");
+	glad_glVertexAttrib4iv = (PFNGLVERTEXATTRIB4IVPROC)load("glVertexAttrib4iv");
+	glad_glVertexAttrib4s = (PFNGLVERTEXATTRIB4SPROC)load("glVertexAttrib4s");
+	glad_glVertexAttrib4sv = (PFNGLVERTEXATTRIB4SVPROC)load("glVertexAttrib4sv");
+	glad_glVertexAttrib4ubv = (PFNGLVERTEXATTRIB4UBVPROC)load("glVertexAttrib4ubv");
+	glad_glVertexAttrib4uiv = (PFNGLVERTEXATTRIB4UIVPROC)load("glVertexAttrib4uiv");
+	glad_glVertexAttrib4usv = (PFNGLVERTEXATTRIB4USVPROC)load("glVertexAttrib4usv");
+	glad_glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)load("glVertexAttribPointer");
+}
+static void load_GL_VERSION_2_1(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_2_1) return;
+	glad_glUniformMatrix2x3fv = (PFNGLUNIFORMMATRIX2X3FVPROC)load("glUniformMatrix2x3fv");
+	glad_glUniformMatrix3x2fv = (PFNGLUNIFORMMATRIX3X2FVPROC)load("glUniformMatrix3x2fv");
+	glad_glUniformMatrix2x4fv = (PFNGLUNIFORMMATRIX2X4FVPROC)load("glUniformMatrix2x4fv");
+	glad_glUniformMatrix4x2fv = (PFNGLUNIFORMMATRIX4X2FVPROC)load("glUniformMatrix4x2fv");
+	glad_glUniformMatrix3x4fv = (PFNGLUNIFORMMATRIX3X4FVPROC)load("glUniformMatrix3x4fv");
+	glad_glUniformMatrix4x3fv = (PFNGLUNIFORMMATRIX4X3FVPROC)load("glUniformMatrix4x3fv");
+}
+static void load_GL_VERSION_3_0(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_3_0) return;
+	glad_glColorMaski = (PFNGLCOLORMASKIPROC)load("glColorMaski");
+	glad_glGetBooleani_v = (PFNGLGETBOOLEANI_VPROC)load("glGetBooleani_v");
+	glad_glGetIntegeri_v = (PFNGLGETINTEGERI_VPROC)load("glGetIntegeri_v");
+	glad_glEnablei = (PFNGLENABLEIPROC)load("glEnablei");
+	glad_glDisablei = (PFNGLDISABLEIPROC)load("glDisablei");
+	glad_glIsEnabledi = (PFNGLISENABLEDIPROC)load("glIsEnabledi");
+	glad_glBeginTransformFeedback = (PFNGLBEGINTRANSFORMFEEDBACKPROC)load("glBeginTransformFeedback");
+	glad_glEndTransformFeedback = (PFNGLENDTRANSFORMFEEDBACKPROC)load("glEndTransformFeedback");
+	glad_glBindBufferRange = (PFNGLBINDBUFFERRANGEPROC)load("glBindBufferRange");
+	glad_glBindBufferBase = (PFNGLBINDBUFFERBASEPROC)load("glBindBufferBase");
+	glad_glTransformFeedbackVaryings = (PFNGLTRANSFORMFEEDBACKVARYINGSPROC)load("glTransformFeedbackVaryings");
+	glad_glGetTransformFeedbackVarying = (PFNGLGETTRANSFORMFEEDBACKVARYINGPROC)load("glGetTransformFeedbackVarying");
+	glad_glClampColor = (PFNGLCLAMPCOLORPROC)load("glClampColor");
+	glad_glBeginConditionalRender = (PFNGLBEGINCONDITIONALRENDERPROC)load("glBeginConditionalRender");
+	glad_glEndConditionalRender = (PFNGLENDCONDITIONALRENDERPROC)load("glEndConditionalRender");
+	glad_glVertexAttribIPointer = (PFNGLVERTEXATTRIBIPOINTERPROC)load("glVertexAttribIPointer");
+	glad_glGetVertexAttribIiv = (PFNGLGETVERTEXATTRIBIIVPROC)load("glGetVertexAttribIiv");
+	glad_glGetVertexAttribIuiv = (PFNGLGETVERTEXATTRIBIUIVPROC)load("glGetVertexAttribIuiv");
+	glad_glVertexAttribI1i = (PFNGLVERTEXATTRIBI1IPROC)load("glVertexAttribI1i");
+	glad_glVertexAttribI2i = (PFNGLVERTEXATTRIBI2IPROC)load("glVertexAttribI2i");
+	glad_glVertexAttribI3i = (PFNGLVERTEXATTRIBI3IPROC)load("glVertexAttribI3i");
+	glad_glVertexAttribI4i = (PFNGLVERTEXATTRIBI4IPROC)load("glVertexAttribI4i");
+	glad_glVertexAttribI1ui = (PFNGLVERTEXATTRIBI1UIPROC)load("glVertexAttribI1ui");
+	glad_glVertexAttribI2ui = (PFNGLVERTEXATTRIBI2UIPROC)load("glVertexAttribI2ui");
+	glad_glVertexAttribI3ui = (PFNGLVERTEXATTRIBI3UIPROC)load("glVertexAttribI3ui");
+	glad_glVertexAttribI4ui = (PFNGLVERTEXATTRIBI4UIPROC)load("glVertexAttribI4ui");
+	glad_glVertexAttribI1iv = (PFNGLVERTEXATTRIBI1IVPROC)load("glVertexAttribI1iv");
+	glad_glVertexAttribI2iv = (PFNGLVERTEXATTRIBI2IVPROC)load("glVertexAttribI2iv");
+	glad_glVertexAttribI3iv = (PFNGLVERTEXATTRIBI3IVPROC)load("glVertexAttribI3iv");
+	glad_glVertexAttribI4iv = (PFNGLVERTEXATTRIBI4IVPROC)load("glVertexAttribI4iv");
+	glad_glVertexAttribI1uiv = (PFNGLVERTEXATTRIBI1UIVPROC)load("glVertexAttribI1uiv");
+	glad_glVertexAttribI2uiv = (PFNGLVERTEXATTRIBI2UIVPROC)load("glVertexAttribI2uiv");
+	glad_glVertexAttribI3uiv = (PFNGLVERTEXATTRIBI3UIVPROC)load("glVertexAttribI3uiv");
+	glad_glVertexAttribI4uiv = (PFNGLVERTEXATTRIBI4UIVPROC)load("glVertexAttribI4uiv");
+	glad_glVertexAttribI4bv = (PFNGLVERTEXATTRIBI4BVPROC)load("glVertexAttribI4bv");
+	glad_glVertexAttribI4sv = (PFNGLVERTEXATTRIBI4SVPROC)load("glVertexAttribI4sv");
+	glad_glVertexAttribI4ubv = (PFNGLVERTEXATTRIBI4UBVPROC)load("glVertexAttribI4ubv");
+	glad_glVertexAttribI4usv = (PFNGLVERTEXATTRIBI4USVPROC)load("glVertexAttribI4usv");
+	glad_glGetUniformuiv = (PFNGLGETUNIFORMUIVPROC)load("glGetUniformuiv");
+	glad_glBindFragDataLocation = (PFNGLBINDFRAGDATALOCATIONPROC)load("glBindFragDataLocation");
+	glad_glGetFragDataLocation = (PFNGLGETFRAGDATALOCATIONPROC)load("glGetFragDataLocation");
+	glad_glUniform1ui = (PFNGLUNIFORM1UIPROC)load("glUniform1ui");
+	glad_glUniform2ui = (PFNGLUNIFORM2UIPROC)load("glUniform2ui");
+	glad_glUniform3ui = (PFNGLUNIFORM3UIPROC)load("glUniform3ui");
+	glad_glUniform4ui = (PFNGLUNIFORM4UIPROC)load("glUniform4ui");
+	glad_glUniform1uiv = (PFNGLUNIFORM1UIVPROC)load("glUniform1uiv");
+	glad_glUniform2uiv = (PFNGLUNIFORM2UIVPROC)load("glUniform2uiv");
+	glad_glUniform3uiv = (PFNGLUNIFORM3UIVPROC)load("glUniform3uiv");
+	glad_glUniform4uiv = (PFNGLUNIFORM4UIVPROC)load("glUniform4uiv");
+	glad_glTexParameterIiv = (PFNGLTEXPARAMETERIIVPROC)load("glTexParameterIiv");
+	glad_glTexParameterIuiv = (PFNGLTEXPARAMETERIUIVPROC)load("glTexParameterIuiv");
+	glad_glGetTexParameterIiv = (PFNGLGETTEXPARAMETERIIVPROC)load("glGetTexParameterIiv");
+	glad_glGetTexParameterIuiv = (PFNGLGETTEXPARAMETERIUIVPROC)load("glGetTexParameterIuiv");
+	glad_glClearBufferiv = (PFNGLCLEARBUFFERIVPROC)load("glClearBufferiv");
+	glad_glClearBufferuiv = (PFNGLCLEARBUFFERUIVPROC)load("glClearBufferuiv");
+	glad_glClearBufferfv = (PFNGLCLEARBUFFERFVPROC)load("glClearBufferfv");
+	glad_glClearBufferfi = (PFNGLCLEARBUFFERFIPROC)load("glClearBufferfi");
+	glad_glGetStringi = (PFNGLGETSTRINGIPROC)load("glGetStringi");
+	glad_glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)load("glIsRenderbuffer");
+	glad_glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)load("glBindRenderbuffer");
+	glad_glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)load("glDeleteRenderbuffers");
+	glad_glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)load("glGenRenderbuffers");
+	glad_glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)load("glRenderbufferStorage");
+	glad_glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)load("glGetRenderbufferParameteriv");
+	glad_glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)load("glIsFramebuffer");
+	glad_glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)load("glBindFramebuffer");
+	glad_glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)load("glDeleteFramebuffers");
+	glad_glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)load("glGenFramebuffers");
+	glad_glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)load("glCheckFramebufferStatus");
+	glad_glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)load("glFramebufferTexture1D");
+	glad_glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)load("glFramebufferTexture2D");
+	glad_glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)load("glFramebufferTexture3D");
+	glad_glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)load("glFramebufferRenderbuffer");
+	glad_glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)load("glGetFramebufferAttachmentParameteriv");
+	glad_glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)load("glGenerateMipmap");
+	glad_glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)load("glBlitFramebuffer");
+	glad_glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)load("glRenderbufferStorageMultisample");
+	glad_glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)load("glFramebufferTextureLayer");
+	glad_glMapBufferRange = (PFNGLMAPBUFFERRANGEPROC)load("glMapBufferRange");
+	glad_glFlushMappedBufferRange = (PFNGLFLUSHMAPPEDBUFFERRANGEPROC)load("glFlushMappedBufferRange");
+	glad_glBindVertexArray = (PFNGLBINDVERTEXARRAYPROC)load("glBindVertexArray");
+	glad_glDeleteVertexArrays = (PFNGLDELETEVERTEXARRAYSPROC)load("glDeleteVertexArrays");
+	glad_glGenVertexArrays = (PFNGLGENVERTEXARRAYSPROC)load("glGenVertexArrays");
+	glad_glIsVertexArray = (PFNGLISVERTEXARRAYPROC)load("glIsVertexArray");
+}
+static void load_GL_VERSION_3_1(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_3_1) return;
+	glad_glDrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDPROC)load("glDrawArraysInstanced");
+	glad_glDrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDPROC)load("glDrawElementsInstanced");
+	glad_glTexBuffer = (PFNGLTEXBUFFERPROC)load("glTexBuffer");
+	glad_glPrimitiveRestartIndex = (PFNGLPRIMITIVERESTARTINDEXPROC)load("glPrimitiveRestartIndex");
+	glad_glCopyBufferSubData = (PFNGLCOPYBUFFERSUBDATAPROC)load("glCopyBufferSubData");
+	glad_glGetUniformIndices = (PFNGLGETUNIFORMINDICESPROC)load("glGetUniformIndices");
+	glad_glGetActiveUniformsiv = (PFNGLGETACTIVEUNIFORMSIVPROC)load("glGetActiveUniformsiv");
+	glad_glGetActiveUniformName = (PFNGLGETACTIVEUNIFORMNAMEPROC)load("glGetActiveUniformName");
+	glad_glGetUniformBlockIndex = (PFNGLGETUNIFORMBLOCKINDEXPROC)load("glGetUniformBlockIndex");
+	glad_glGetActiveUniformBlockiv = (PFNGLGETACTIVEUNIFORMBLOCKIVPROC)load("glGetActiveUniformBlockiv");
+	glad_glGetActiveUniformBlockName = (PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC)load("glGetActiveUniformBlockName");
+	glad_glUniformBlockBinding = (PFNGLUNIFORMBLOCKBINDINGPROC)load("glUniformBlockBinding");
+	glad_glBindBufferRange = (PFNGLBINDBUFFERRANGEPROC)load("glBindBufferRange");
+	glad_glBindBufferBase = (PFNGLBINDBUFFERBASEPROC)load("glBindBufferBase");
+	glad_glGetIntegeri_v = (PFNGLGETINTEGERI_VPROC)load("glGetIntegeri_v");
+}
+static void load_GL_VERSION_3_2(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_3_2) return;
+	glad_glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)load("glDrawElementsBaseVertex");
+	glad_glDrawRangeElementsBaseVertex = (PFNGLDRAWRANGEELEMENTSBASEVERTEXPROC)load("glDrawRangeElementsBaseVertex");
+	glad_glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)load("glDrawElementsInstancedBaseVertex");
+	glad_glMultiDrawElementsBaseVertex = (PFNGLMULTIDRAWELEMENTSBASEVERTEXPROC)load("glMultiDrawElementsBaseVertex");
+	glad_glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)load("glProvokingVertex");
+	glad_glFenceSync = (PFNGLFENCESYNCPROC)load("glFenceSync");
+	glad_glIsSync = (PFNGLISSYNCPROC)load("glIsSync");
+	glad_glDeleteSync = (PFNGLDELETESYNCPROC)load("glDeleteSync");
+	glad_glClientWaitSync = (PFNGLCLIENTWAITSYNCPROC)load("glClientWaitSync");
+	glad_glWaitSync = (PFNGLWAITSYNCPROC)load("glWaitSync");
+	glad_glGetInteger64v = (PFNGLGETINTEGER64VPROC)load("glGetInteger64v");
+	glad_glGetSynciv = (PFNGLGETSYNCIVPROC)load("glGetSynciv");
+	glad_glGetInteger64i_v = (PFNGLGETINTEGER64I_VPROC)load("glGetInteger64i_v");
+	glad_glGetBufferParameteri64v = (PFNGLGETBUFFERPARAMETERI64VPROC)load("glGetBufferParameteri64v");
+	glad_glFramebufferTexture = (PFNGLFRAMEBUFFERTEXTUREPROC)load("glFramebufferTexture");
+	glad_glTexImage2DMultisample = (PFNGLTEXIMAGE2DMULTISAMPLEPROC)load("glTexImage2DMultisample");
+	glad_glTexImage3DMultisample = (PFNGLTEXIMAGE3DMULTISAMPLEPROC)load("glTexImage3DMultisample");
+	glad_glGetMultisamplefv = (PFNGLGETMULTISAMPLEFVPROC)load("glGetMultisamplefv");
+	glad_glSampleMaski = (PFNGLSAMPLEMASKIPROC)load("glSampleMaski");
+}
+static void load_GL_VERSION_3_3(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_3_3) return;
+	glad_glBindFragDataLocationIndexed = (PFNGLBINDFRAGDATALOCATIONINDEXEDPROC)load("glBindFragDataLocationIndexed");
+	glad_glGetFragDataIndex = (PFNGLGETFRAGDATAINDEXPROC)load("glGetFragDataIndex");
+	glad_glGenSamplers = (PFNGLGENSAMPLERSPROC)load("glGenSamplers");
+	glad_glDeleteSamplers = (PFNGLDELETESAMPLERSPROC)load("glDeleteSamplers");
+	glad_glIsSampler = (PFNGLISSAMPLERPROC)load("glIsSampler");
+	glad_glBindSampler = (PFNGLBINDSAMPLERPROC)load("glBindSampler");
+	glad_glSamplerParameteri = (PFNGLSAMPLERPARAMETERIPROC)load("glSamplerParameteri");
+	glad_glSamplerParameteriv = (PFNGLSAMPLERPARAMETERIVPROC)load("glSamplerParameteriv");
+	glad_glSamplerParameterf = (PFNGLSAMPLERPARAMETERFPROC)load("glSamplerParameterf");
+	glad_glSamplerParameterfv = (PFNGLSAMPLERPARAMETERFVPROC)load("glSamplerParameterfv");
+	glad_glSamplerParameterIiv = (PFNGLSAMPLERPARAMETERIIVPROC)load("glSamplerParameterIiv");
+	glad_glSamplerParameterIuiv = (PFNGLSAMPLERPARAMETERIUIVPROC)load("glSamplerParameterIuiv");
+	glad_glGetSamplerParameteriv = (PFNGLGETSAMPLERPARAMETERIVPROC)load("glGetSamplerParameteriv");
+	glad_glGetSamplerParameterIiv = (PFNGLGETSAMPLERPARAMETERIIVPROC)load("glGetSamplerParameterIiv");
+	glad_glGetSamplerParameterfv = (PFNGLGETSAMPLERPARAMETERFVPROC)load("glGetSamplerParameterfv");
+	glad_glGetSamplerParameterIuiv = (PFNGLGETSAMPLERPARAMETERIUIVPROC)load("glGetSamplerParameterIuiv");
+	glad_glQueryCounter = (PFNGLQUERYCOUNTERPROC)load("glQueryCounter");
+	glad_glGetQueryObjecti64v = (PFNGLGETQUERYOBJECTI64VPROC)load("glGetQueryObjecti64v");
+	glad_glGetQueryObjectui64v = (PFNGLGETQUERYOBJECTUI64VPROC)load("glGetQueryObjectui64v");
+	glad_glVertexAttribDivisor = (PFNGLVERTEXATTRIBDIVISORPROC)load("glVertexAttribDivisor");
+	glad_glVertexAttribP1ui = (PFNGLVERTEXATTRIBP1UIPROC)load("glVertexAttribP1ui");
+	glad_glVertexAttribP1uiv = (PFNGLVERTEXATTRIBP1UIVPROC)load("glVertexAttribP1uiv");
+	glad_glVertexAttribP2ui = (PFNGLVERTEXATTRIBP2UIPROC)load("glVertexAttribP2ui");
+	glad_glVertexAttribP2uiv = (PFNGLVERTEXATTRIBP2UIVPROC)load("glVertexAttribP2uiv");
+	glad_glVertexAttribP3ui = (PFNGLVERTEXATTRIBP3UIPROC)load("glVertexAttribP3ui");
+	glad_glVertexAttribP3uiv = (PFNGLVERTEXATTRIBP3UIVPROC)load("glVertexAttribP3uiv");
+	glad_glVertexAttribP4ui = (PFNGLVERTEXATTRIBP4UIPROC)load("glVertexAttribP4ui");
+	glad_glVertexAttribP4uiv = (PFNGLVERTEXATTRIBP4UIVPROC)load("glVertexAttribP4uiv");
+	glad_glVertexP2ui = (PFNGLVERTEXP2UIPROC)load("glVertexP2ui");
+	glad_glVertexP2uiv = (PFNGLVERTEXP2UIVPROC)load("glVertexP2uiv");
+	glad_glVertexP3ui = (PFNGLVERTEXP3UIPROC)load("glVertexP3ui");
+	glad_glVertexP3uiv = (PFNGLVERTEXP3UIVPROC)load("glVertexP3uiv");
+	glad_glVertexP4ui = (PFNGLVERTEXP4UIPROC)load("glVertexP4ui");
+	glad_glVertexP4uiv = (PFNGLVERTEXP4UIVPROC)load("glVertexP4uiv");
+	glad_glTexCoordP1ui = (PFNGLTEXCOORDP1UIPROC)load("glTexCoordP1ui");
+	glad_glTexCoordP1uiv = (PFNGLTEXCOORDP1UIVPROC)load("glTexCoordP1uiv");
+	glad_glTexCoordP2ui = (PFNGLTEXCOORDP2UIPROC)load("glTexCoordP2ui");
+	glad_glTexCoordP2uiv = (PFNGLTEXCOORDP2UIVPROC)load("glTexCoordP2uiv");
+	glad_glTexCoordP3ui = (PFNGLTEXCOORDP3UIPROC)load("glTexCoordP3ui");
+	glad_glTexCoordP3uiv = (PFNGLTEXCOORDP3UIVPROC)load("glTexCoordP3uiv");
+	glad_glTexCoordP4ui = (PFNGLTEXCOORDP4UIPROC)load("glTexCoordP4ui");
+	glad_glTexCoordP4uiv = (PFNGLTEXCOORDP4UIVPROC)load("glTexCoordP4uiv");
+	glad_glMultiTexCoordP1ui = (PFNGLMULTITEXCOORDP1UIPROC)load("glMultiTexCoordP1ui");
+	glad_glMultiTexCoordP1uiv = (PFNGLMULTITEXCOORDP1UIVPROC)load("glMultiTexCoordP1uiv");
+	glad_glMultiTexCoordP2ui = (PFNGLMULTITEXCOORDP2UIPROC)load("glMultiTexCoordP2ui");
+	glad_glMultiTexCoordP2uiv = (PFNGLMULTITEXCOORDP2UIVPROC)load("glMultiTexCoordP2uiv");
+	glad_glMultiTexCoordP3ui = (PFNGLMULTITEXCOORDP3UIPROC)load("glMultiTexCoordP3ui");
+	glad_glMultiTexCoordP3uiv = (PFNGLMULTITEXCOORDP3UIVPROC)load("glMultiTexCoordP3uiv");
+	glad_glMultiTexCoordP4ui = (PFNGLMULTITEXCOORDP4UIPROC)load("glMultiTexCoordP4ui");
+	glad_glMultiTexCoordP4uiv = (PFNGLMULTITEXCOORDP4UIVPROC)load("glMultiTexCoordP4uiv");
+	glad_glNormalP3ui = (PFNGLNORMALP3UIPROC)load("glNormalP3ui");
+	glad_glNormalP3uiv = (PFNGLNORMALP3UIVPROC)load("glNormalP3uiv");
+	glad_glColorP3ui = (PFNGLCOLORP3UIPROC)load("glColorP3ui");
+	glad_glColorP3uiv = (PFNGLCOLORP3UIVPROC)load("glColorP3uiv");
+	glad_glColorP4ui = (PFNGLCOLORP4UIPROC)load("glColorP4ui");
+	glad_glColorP4uiv = (PFNGLCOLORP4UIVPROC)load("glColorP4uiv");
+	glad_glSecondaryColorP3ui = (PFNGLSECONDARYCOLORP3UIPROC)load("glSecondaryColorP3ui");
+	glad_glSecondaryColorP3uiv = (PFNGLSECONDARYCOLORP3UIVPROC)load("glSecondaryColorP3uiv");
+}
+static void load_GL_VERSION_4_0(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_4_0) return;
+	glad_glMinSampleShading = (PFNGLMINSAMPLESHADINGPROC)load("glMinSampleShading");
+	glad_glBlendEquationi = (PFNGLBLENDEQUATIONIPROC)load("glBlendEquationi");
+	glad_glBlendEquationSeparatei = (PFNGLBLENDEQUATIONSEPARATEIPROC)load("glBlendEquationSeparatei");
+	glad_glBlendFunci = (PFNGLBLENDFUNCIPROC)load("glBlendFunci");
+	glad_glBlendFuncSeparatei = (PFNGLBLENDFUNCSEPARATEIPROC)load("glBlendFuncSeparatei");
+	glad_glDrawArraysIndirect = (PFNGLDRAWARRAYSINDIRECTPROC)load("glDrawArraysIndirect");
+	glad_glDrawElementsIndirect = (PFNGLDRAWELEMENTSINDIRECTPROC)load("glDrawElementsIndirect");
+	glad_glUniform1d = (PFNGLUNIFORM1DPROC)load("glUniform1d");
+	glad_glUniform2d = (PFNGLUNIFORM2DPROC)load("glUniform2d");
+	glad_glUniform3d = (PFNGLUNIFORM3DPROC)load("glUniform3d");
+	glad_glUniform4d = (PFNGLUNIFORM4DPROC)load("glUniform4d");
+	glad_glUniform1dv = (PFNGLUNIFORM1DVPROC)load("glUniform1dv");
+	glad_glUniform2dv = (PFNGLUNIFORM2DVPROC)load("glUniform2dv");
+	glad_glUniform3dv = (PFNGLUNIFORM3DVPROC)load("glUniform3dv");
+	glad_glUniform4dv = (PFNGLUNIFORM4DVPROC)load("glUniform4dv");
+	glad_glUniformMatrix2dv = (PFNGLUNIFORMMATRIX2DVPROC)load("glUniformMatrix2dv");
+	glad_glUniformMatrix3dv = (PFNGLUNIFORMMATRIX3DVPROC)load("glUniformMatrix3dv");
+	glad_glUniformMatrix4dv = (PFNGLUNIFORMMATRIX4DVPROC)load("glUniformMatrix4dv");
+	glad_glUniformMatrix2x3dv = (PFNGLUNIFORMMATRIX2X3DVPROC)load("glUniformMatrix2x3dv");
+	glad_glUniformMatrix2x4dv = (PFNGLUNIFORMMATRIX2X4DVPROC)load("glUniformMatrix2x4dv");
+	glad_glUniformMatrix3x2dv = (PFNGLUNIFORMMATRIX3X2DVPROC)load("glUniformMatrix3x2dv");
+	glad_glUniformMatrix3x4dv = (PFNGLUNIFORMMATRIX3X4DVPROC)load("glUniformMatrix3x4dv");
+	glad_glUniformMatrix4x2dv = (PFNGLUNIFORMMATRIX4X2DVPROC)load("glUniformMatrix4x2dv");
+	glad_glUniformMatrix4x3dv = (PFNGLUNIFORMMATRIX4X3DVPROC)load("glUniformMatrix4x3dv");
+	glad_glGetUniformdv = (PFNGLGETUNIFORMDVPROC)load("glGetUniformdv");
+	glad_glGetSubroutineUniformLocation = (PFNGLGETSUBROUTINEUNIFORMLOCATIONPROC)load("glGetSubroutineUniformLocation");
+	glad_glGetSubroutineIndex = (PFNGLGETSUBROUTINEINDEXPROC)load("glGetSubroutineIndex");
+	glad_glGetActiveSubroutineUniformiv = (PFNGLGETACTIVESUBROUTINEUNIFORMIVPROC)load("glGetActiveSubroutineUniformiv");
+	glad_glGetActiveSubroutineUniformName = (PFNGLGETACTIVESUBROUTINEUNIFORMNAMEPROC)load("glGetActiveSubroutineUniformName");
+	glad_glGetActiveSubroutineName = (PFNGLGETACTIVESUBROUTINENAMEPROC)load("glGetActiveSubroutineName");
+	glad_glUniformSubroutinesuiv = (PFNGLUNIFORMSUBROUTINESUIVPROC)load("glUniformSubroutinesuiv");
+	glad_glGetUniformSubroutineuiv = (PFNGLGETUNIFORMSUBROUTINEUIVPROC)load("glGetUniformSubroutineuiv");
+	glad_glGetProgramStageiv = (PFNGLGETPROGRAMSTAGEIVPROC)load("glGetProgramStageiv");
+	glad_glPatchParameteri = (PFNGLPATCHPARAMETERIPROC)load("glPatchParameteri");
+	glad_glPatchParameterfv = (PFNGLPATCHPARAMETERFVPROC)load("glPatchParameterfv");
+	glad_glBindTransformFeedback = (PFNGLBINDTRANSFORMFEEDBACKPROC)load("glBindTransformFeedback");
+	glad_glDeleteTransformFeedbacks = (PFNGLDELETETRANSFORMFEEDBACKSPROC)load("glDeleteTransformFeedbacks");
+	glad_glGenTransformFeedbacks = (PFNGLGENTRANSFORMFEEDBACKSPROC)load("glGenTransformFeedbacks");
+	glad_glIsTransformFeedback = (PFNGLISTRANSFORMFEEDBACKPROC)load("glIsTransformFeedback");
+	glad_glPauseTransformFeedback = (PFNGLPAUSETRANSFORMFEEDBACKPROC)load("glPauseTransformFeedback");
+	glad_glResumeTransformFeedback = (PFNGLRESUMETRANSFORMFEEDBACKPROC)load("glResumeTransformFeedback");
+	glad_glDrawTransformFeedback = (PFNGLDRAWTRANSFORMFEEDBACKPROC)load("glDrawTransformFeedback");
+	glad_glDrawTransformFeedbackStream = (PFNGLDRAWTRANSFORMFEEDBACKSTREAMPROC)load("glDrawTransformFeedbackStream");
+	glad_glBeginQueryIndexed = (PFNGLBEGINQUERYINDEXEDPROC)load("glBeginQueryIndexed");
+	glad_glEndQueryIndexed = (PFNGLENDQUERYINDEXEDPROC)load("glEndQueryIndexed");
+	glad_glGetQueryIndexediv = (PFNGLGETQUERYINDEXEDIVPROC)load("glGetQueryIndexediv");
+}
+static void load_GL_VERSION_4_1(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_4_1) return;
+	glad_glReleaseShaderCompiler = (PFNGLRELEASESHADERCOMPILERPROC)load("glReleaseShaderCompiler");
+	glad_glShaderBinary = (PFNGLSHADERBINARYPROC)load("glShaderBinary");
+	glad_glGetShaderPrecisionFormat = (PFNGLGETSHADERPRECISIONFORMATPROC)load("glGetShaderPrecisionFormat");
+	glad_glDepthRangef = (PFNGLDEPTHRANGEFPROC)load("glDepthRangef");
+	glad_glClearDepthf = (PFNGLCLEARDEPTHFPROC)load("glClearDepthf");
+	glad_glGetProgramBinary = (PFNGLGETPROGRAMBINARYPROC)load("glGetProgramBinary");
+	glad_glProgramBinary = (PFNGLPROGRAMBINARYPROC)load("glProgramBinary");
+	glad_glProgramParameteri = (PFNGLPROGRAMPARAMETERIPROC)load("glProgramParameteri");
+	glad_glUseProgramStages = (PFNGLUSEPROGRAMSTAGESPROC)load("glUseProgramStages");
+	glad_glActiveShaderProgram = (PFNGLACTIVESHADERPROGRAMPROC)load("glActiveShaderProgram");
+	glad_glCreateShaderProgramv = (PFNGLCREATESHADERPROGRAMVPROC)load("glCreateShaderProgramv");
+	glad_glBindProgramPipeline = (PFNGLBINDPROGRAMPIPELINEPROC)load("glBindProgramPipeline");
+	glad_glDeleteProgramPipelines = (PFNGLDELETEPROGRAMPIPELINESPROC)load("glDeleteProgramPipelines");
+	glad_glGenProgramPipelines = (PFNGLGENPROGRAMPIPELINESPROC)load("glGenProgramPipelines");
+	glad_glIsProgramPipeline = (PFNGLISPROGRAMPIPELINEPROC)load("glIsProgramPipeline");
+	glad_glGetProgramPipelineiv = (PFNGLGETPROGRAMPIPELINEIVPROC)load("glGetProgramPipelineiv");
+	glad_glProgramParameteri = (PFNGLPROGRAMPARAMETERIPROC)load("glProgramParameteri");
+	glad_glProgramUniform1i = (PFNGLPROGRAMUNIFORM1IPROC)load("glProgramUniform1i");
+	glad_glProgramUniform1iv = (PFNGLPROGRAMUNIFORM1IVPROC)load("glProgramUniform1iv");
+	glad_glProgramUniform1f = (PFNGLPROGRAMUNIFORM1FPROC)load("glProgramUniform1f");
+	glad_glProgramUniform1fv = (PFNGLPROGRAMUNIFORM1FVPROC)load("glProgramUniform1fv");
+	glad_glProgramUniform1d = (PFNGLPROGRAMUNIFORM1DPROC)load("glProgramUniform1d");
+	glad_glProgramUniform1dv = (PFNGLPROGRAMUNIFORM1DVPROC)load("glProgramUniform1dv");
+	glad_glProgramUniform1ui = (PFNGLPROGRAMUNIFORM1UIPROC)load("glProgramUniform1ui");
+	glad_glProgramUniform1uiv = (PFNGLPROGRAMUNIFORM1UIVPROC)load("glProgramUniform1uiv");
+	glad_glProgramUniform2i = (PFNGLPROGRAMUNIFORM2IPROC)load("glProgramUniform2i");
+	glad_glProgramUniform2iv = (PFNGLPROGRAMUNIFORM2IVPROC)load("glProgramUniform2iv");
+	glad_glProgramUniform2f = (PFNGLPROGRAMUNIFORM2FPROC)load("glProgramUniform2f");
+	glad_glProgramUniform2fv = (PFNGLPROGRAMUNIFORM2FVPROC)load("glProgramUniform2fv");
+	glad_glProgramUniform2d = (PFNGLPROGRAMUNIFORM2DPROC)load("glProgramUniform2d");
+	glad_glProgramUniform2dv = (PFNGLPROGRAMUNIFORM2DVPROC)load("glProgramUniform2dv");
+	glad_glProgramUniform2ui = (PFNGLPROGRAMUNIFORM2UIPROC)load("glProgramUniform2ui");
+	glad_glProgramUniform2uiv = (PFNGLPROGRAMUNIFORM2UIVPROC)load("glProgramUniform2uiv");
+	glad_glProgramUniform3i = (PFNGLPROGRAMUNIFORM3IPROC)load("glProgramUniform3i");
+	glad_glProgramUniform3iv = (PFNGLPROGRAMUNIFORM3IVPROC)load("glProgramUniform3iv");
+	glad_glProgramUniform3f = (PFNGLPROGRAMUNIFORM3FPROC)load("glProgramUniform3f");
+	glad_glProgramUniform3fv = (PFNGLPROGRAMUNIFORM3FVPROC)load("glProgramUniform3fv");
+	glad_glProgramUniform3d = (PFNGLPROGRAMUNIFORM3DPROC)load("glProgramUniform3d");
+	glad_glProgramUniform3dv = (PFNGLPROGRAMUNIFORM3DVPROC)load("glProgramUniform3dv");
+	glad_glProgramUniform3ui = (PFNGLPROGRAMUNIFORM3UIPROC)load("glProgramUniform3ui");
+	glad_glProgramUniform3uiv = (PFNGLPROGRAMUNIFORM3UIVPROC)load("glProgramUniform3uiv");
+	glad_glProgramUniform4i = (PFNGLPROGRAMUNIFORM4IPROC)load("glProgramUniform4i");
+	glad_glProgramUniform4iv = (PFNGLPROGRAMUNIFORM4IVPROC)load("glProgramUniform4iv");
+	glad_glProgramUniform4f = (PFNGLPROGRAMUNIFORM4FPROC)load("glProgramUniform4f");
+	glad_glProgramUniform4fv = (PFNGLPROGRAMUNIFORM4FVPROC)load("glProgramUniform4fv");
+	glad_glProgramUniform4d = (PFNGLPROGRAMUNIFORM4DPROC)load("glProgramUniform4d");
+	glad_glProgramUniform4dv = (PFNGLPROGRAMUNIFORM4DVPROC)load("glProgramUniform4dv");
+	glad_glProgramUniform4ui = (PFNGLPROGRAMUNIFORM4UIPROC)load("glProgramUniform4ui");
+	glad_glProgramUniform4uiv = (PFNGLPROGRAMUNIFORM4UIVPROC)load("glProgramUniform4uiv");
+	glad_glProgramUniformMatrix2fv = (PFNGLPROGRAMUNIFORMMATRIX2FVPROC)load("glProgramUniformMatrix2fv");
+	glad_glProgramUniformMatrix3fv = (PFNGLPROGRAMUNIFORMMATRIX3FVPROC)load("glProgramUniformMatrix3fv");
+	glad_glProgramUniformMatrix4fv = (PFNGLPROGRAMUNIFORMMATRIX4FVPROC)load("glProgramUniformMatrix4fv");
+	glad_glProgramUniformMatrix2dv = (PFNGLPROGRAMUNIFORMMATRIX2DVPROC)load("glProgramUniformMatrix2dv");
+	glad_glProgramUniformMatrix3dv = (PFNGLPROGRAMUNIFORMMATRIX3DVPROC)load("glProgramUniformMatrix3dv");
+	glad_glProgramUniformMatrix4dv = (PFNGLPROGRAMUNIFORMMATRIX4DVPROC)load("glProgramUniformMatrix4dv");
+	glad_glProgramUniformMatrix2x3fv = (PFNGLPROGRAMUNIFORMMATRIX2X3FVPROC)load("glProgramUniformMatrix2x3fv");
+	glad_glProgramUniformMatrix3x2fv = (PFNGLPROGRAMUNIFORMMATRIX3X2FVPROC)load("glProgramUniformMatrix3x2fv");
+	glad_glProgramUniformMatrix2x4fv = (PFNGLPROGRAMUNIFORMMATRIX2X4FVPROC)load("glProgramUniformMatrix2x4fv");
+	glad_glProgramUniformMatrix4x2fv = (PFNGLPROGRAMUNIFORMMATRIX4X2FVPROC)load("glProgramUniformMatrix4x2fv");
+	glad_glProgramUniformMatrix3x4fv = (PFNGLPROGRAMUNIFORMMATRIX3X4FVPROC)load("glProgramUniformMatrix3x4fv");
+	glad_glProgramUniformMatrix4x3fv = (PFNGLPROGRAMUNIFORMMATRIX4X3FVPROC)load("glProgramUniformMatrix4x3fv");
+	glad_glProgramUniformMatrix2x3dv = (PFNGLPROGRAMUNIFORMMATRIX2X3DVPROC)load("glProgramUniformMatrix2x3dv");
+	glad_glProgramUniformMatrix3x2dv = (PFNGLPROGRAMUNIFORMMATRIX3X2DVPROC)load("glProgramUniformMatrix3x2dv");
+	glad_glProgramUniformMatrix2x4dv = (PFNGLPROGRAMUNIFORMMATRIX2X4DVPROC)load("glProgramUniformMatrix2x4dv");
+	glad_glProgramUniformMatrix4x2dv = (PFNGLPROGRAMUNIFORMMATRIX4X2DVPROC)load("glProgramUniformMatrix4x2dv");
+	glad_glProgramUniformMatrix3x4dv = (PFNGLPROGRAMUNIFORMMATRIX3X4DVPROC)load("glProgramUniformMatrix3x4dv");
+	glad_glProgramUniformMatrix4x3dv = (PFNGLPROGRAMUNIFORMMATRIX4X3DVPROC)load("glProgramUniformMatrix4x3dv");
+	glad_glValidateProgramPipeline = (PFNGLVALIDATEPROGRAMPIPELINEPROC)load("glValidateProgramPipeline");
+	glad_glGetProgramPipelineInfoLog = (PFNGLGETPROGRAMPIPELINEINFOLOGPROC)load("glGetProgramPipelineInfoLog");
+	glad_glVertexAttribL1d = (PFNGLVERTEXATTRIBL1DPROC)load("glVertexAttribL1d");
+	glad_glVertexAttribL2d = (PFNGLVERTEXATTRIBL2DPROC)load("glVertexAttribL2d");
+	glad_glVertexAttribL3d = (PFNGLVERTEXATTRIBL3DPROC)load("glVertexAttribL3d");
+	glad_glVertexAttribL4d = (PFNGLVERTEXATTRIBL4DPROC)load("glVertexAttribL4d");
+	glad_glVertexAttribL1dv = (PFNGLVERTEXATTRIBL1DVPROC)load("glVertexAttribL1dv");
+	glad_glVertexAttribL2dv = (PFNGLVERTEXATTRIBL2DVPROC)load("glVertexAttribL2dv");
+	glad_glVertexAttribL3dv = (PFNGLVERTEXATTRIBL3DVPROC)load("glVertexAttribL3dv");
+	glad_glVertexAttribL4dv = (PFNGLVERTEXATTRIBL4DVPROC)load("glVertexAttribL4dv");
+	glad_glVertexAttribLPointer = (PFNGLVERTEXATTRIBLPOINTERPROC)load("glVertexAttribLPointer");
+	glad_glGetVertexAttribLdv = (PFNGLGETVERTEXATTRIBLDVPROC)load("glGetVertexAttribLdv");
+	glad_glViewportArrayv = (PFNGLVIEWPORTARRAYVPROC)load("glViewportArrayv");
+	glad_glViewportIndexedf = (PFNGLVIEWPORTINDEXEDFPROC)load("glViewportIndexedf");
+	glad_glViewportIndexedfv = (PFNGLVIEWPORTINDEXEDFVPROC)load("glViewportIndexedfv");
+	glad_glScissorArrayv = (PFNGLSCISSORARRAYVPROC)load("glScissorArrayv");
+	glad_glScissorIndexed = (PFNGLSCISSORINDEXEDPROC)load("glScissorIndexed");
+	glad_glScissorIndexedv = (PFNGLSCISSORINDEXEDVPROC)load("glScissorIndexedv");
+	glad_glDepthRangeArrayv = (PFNGLDEPTHRANGEARRAYVPROC)load("glDepthRangeArrayv");
+	glad_glDepthRangeIndexed = (PFNGLDEPTHRANGEINDEXEDPROC)load("glDepthRangeIndexed");
+	glad_glGetFloati_v = (PFNGLGETFLOATI_VPROC)load("glGetFloati_v");
+	glad_glGetDoublei_v = (PFNGLGETDOUBLEI_VPROC)load("glGetDoublei_v");
+}
+static void load_GL_VERSION_4_2(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_4_2) return;
+	glad_glDrawArraysInstancedBaseInstance = (PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEPROC)load("glDrawArraysInstancedBaseInstance");
+	glad_glDrawElementsInstancedBaseInstance = (PFNGLDRAWELEMENTSINSTANCEDBASEINSTANCEPROC)load("glDrawElementsInstancedBaseInstance");
+	glad_glDrawElementsInstancedBaseVertexBaseInstance = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC)load("glDrawElementsInstancedBaseVertexBaseInstance");
+	glad_glGetInternalformativ = (PFNGLGETINTERNALFORMATIVPROC)load("glGetInternalformativ");
+	glad_glGetActiveAtomicCounterBufferiv = (PFNGLGETACTIVEATOMICCOUNTERBUFFERIVPROC)load("glGetActiveAtomicCounterBufferiv");
+	glad_glBindImageTexture = (PFNGLBINDIMAGETEXTUREPROC)load("glBindImageTexture");
+	glad_glMemoryBarrier = (PFNGLMEMORYBARRIERPROC)load("glMemoryBarrier");
+	glad_glTexStorage1D = (PFNGLTEXSTORAGE1DPROC)load("glTexStorage1D");
+	glad_glTexStorage2D = (PFNGLTEXSTORAGE2DPROC)load("glTexStorage2D");
+	glad_glTexStorage3D = (PFNGLTEXSTORAGE3DPROC)load("glTexStorage3D");
+	glad_glDrawTransformFeedbackInstanced = (PFNGLDRAWTRANSFORMFEEDBACKINSTANCEDPROC)load("glDrawTransformFeedbackInstanced");
+	glad_glDrawTransformFeedbackStreamInstanced = (PFNGLDRAWTRANSFORMFEEDBACKSTREAMINSTANCEDPROC)load("glDrawTransformFeedbackStreamInstanced");
+}
+static void load_GL_VERSION_4_3(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_4_3) return;
+	glad_glClearBufferData = (PFNGLCLEARBUFFERDATAPROC)load("glClearBufferData");
+	glad_glClearBufferSubData = (PFNGLCLEARBUFFERSUBDATAPROC)load("glClearBufferSubData");
+	glad_glDispatchCompute = (PFNGLDISPATCHCOMPUTEPROC)load("glDispatchCompute");
+	glad_glDispatchComputeIndirect = (PFNGLDISPATCHCOMPUTEINDIRECTPROC)load("glDispatchComputeIndirect");
+	glad_glCopyImageSubData = (PFNGLCOPYIMAGESUBDATAPROC)load("glCopyImageSubData");
+	glad_glFramebufferParameteri = (PFNGLFRAMEBUFFERPARAMETERIPROC)load("glFramebufferParameteri");
+	glad_glGetFramebufferParameteriv = (PFNGLGETFRAMEBUFFERPARAMETERIVPROC)load("glGetFramebufferParameteriv");
+	glad_glGetInternalformati64v = (PFNGLGETINTERNALFORMATI64VPROC)load("glGetInternalformati64v");
+	glad_glInvalidateTexSubImage = (PFNGLINVALIDATETEXSUBIMAGEPROC)load("glInvalidateTexSubImage");
+	glad_glInvalidateTexImage = (PFNGLINVALIDATETEXIMAGEPROC)load("glInvalidateTexImage");
+	glad_glInvalidateBufferSubData = (PFNGLINVALIDATEBUFFERSUBDATAPROC)load("glInvalidateBufferSubData");
+	glad_glInvalidateBufferData = (PFNGLINVALIDATEBUFFERDATAPROC)load("glInvalidateBufferData");
+	glad_glInvalidateFramebuffer = (PFNGLINVALIDATEFRAMEBUFFERPROC)load("glInvalidateFramebuffer");
+	glad_glInvalidateSubFramebuffer = (PFNGLINVALIDATESUBFRAMEBUFFERPROC)load("glInvalidateSubFramebuffer");
+	glad_glMultiDrawArraysIndirect = (PFNGLMULTIDRAWARRAYSINDIRECTPROC)load("glMultiDrawArraysIndirect");
+	glad_glMultiDrawElementsIndirect = (PFNGLMULTIDRAWELEMENTSINDIRECTPROC)load("glMultiDrawElementsIndirect");
+	glad_glGetProgramInterfaceiv = (PFNGLGETPROGRAMINTERFACEIVPROC)load("glGetProgramInterfaceiv");
+	glad_glGetProgramResourceIndex = (PFNGLGETPROGRAMRESOURCEINDEXPROC)load("glGetProgramResourceIndex");
+	glad_glGetProgramResourceName = (PFNGLGETPROGRAMRESOURCENAMEPROC)load("glGetProgramResourceName");
+	glad_glGetProgramResourceiv = (PFNGLGETPROGRAMRESOURCEIVPROC)load("glGetProgramResourceiv");
+	glad_glGetProgramResourceLocation = (PFNGLGETPROGRAMRESOURCELOCATIONPROC)load("glGetProgramResourceLocation");
+	glad_glGetProgramResourceLocationIndex = (PFNGLGETPROGRAMRESOURCELOCATIONINDEXPROC)load("glGetProgramResourceLocationIndex");
+	glad_glShaderStorageBlockBinding = (PFNGLSHADERSTORAGEBLOCKBINDINGPROC)load("glShaderStorageBlockBinding");
+	glad_glTexBufferRange = (PFNGLTEXBUFFERRANGEPROC)load("glTexBufferRange");
+	glad_glTexStorage2DMultisample = (PFNGLTEXSTORAGE2DMULTISAMPLEPROC)load("glTexStorage2DMultisample");
+	glad_glTexStorage3DMultisample = (PFNGLTEXSTORAGE3DMULTISAMPLEPROC)load("glTexStorage3DMultisample");
+	glad_glTextureView = (PFNGLTEXTUREVIEWPROC)load("glTextureView");
+	glad_glBindVertexBuffer = (PFNGLBINDVERTEXBUFFERPROC)load("glBindVertexBuffer");
+	glad_glVertexAttribFormat = (PFNGLVERTEXATTRIBFORMATPROC)load("glVertexAttribFormat");
+	glad_glVertexAttribIFormat = (PFNGLVERTEXATTRIBIFORMATPROC)load("glVertexAttribIFormat");
+	glad_glVertexAttribLFormat = (PFNGLVERTEXATTRIBLFORMATPROC)load("glVertexAttribLFormat");
+	glad_glVertexAttribBinding = (PFNGLVERTEXATTRIBBINDINGPROC)load("glVertexAttribBinding");
+	glad_glVertexBindingDivisor = (PFNGLVERTEXBINDINGDIVISORPROC)load("glVertexBindingDivisor");
+	glad_glDebugMessageControl = (PFNGLDEBUGMESSAGECONTROLPROC)load("glDebugMessageControl");
+	glad_glDebugMessageInsert = (PFNGLDEBUGMESSAGEINSERTPROC)load("glDebugMessageInsert");
+	glad_glDebugMessageCallback = (PFNGLDEBUGMESSAGECALLBACKPROC)load("glDebugMessageCallback");
+	glad_glGetDebugMessageLog = (PFNGLGETDEBUGMESSAGELOGPROC)load("glGetDebugMessageLog");
+	glad_glPushDebugGroup = (PFNGLPUSHDEBUGGROUPPROC)load("glPushDebugGroup");
+	glad_glPopDebugGroup = (PFNGLPOPDEBUGGROUPPROC)load("glPopDebugGroup");
+	glad_glObjectLabel = (PFNGLOBJECTLABELPROC)load("glObjectLabel");
+	glad_glGetObjectLabel = (PFNGLGETOBJECTLABELPROC)load("glGetObjectLabel");
+	glad_glObjectPtrLabel = (PFNGLOBJECTPTRLABELPROC)load("glObjectPtrLabel");
+	glad_glGetObjectPtrLabel = (PFNGLGETOBJECTPTRLABELPROC)load("glGetObjectPtrLabel");
+	glad_glGetPointerv = (PFNGLGETPOINTERVPROC)load("glGetPointerv");
+}
+static void load_GL_VERSION_4_4(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_4_4) return;
+	glad_glBufferStorage = (PFNGLBUFFERSTORAGEPROC)load("glBufferStorage");
+	glad_glClearTexImage = (PFNGLCLEARTEXIMAGEPROC)load("glClearTexImage");
+	glad_glClearTexSubImage = (PFNGLCLEARTEXSUBIMAGEPROC)load("glClearTexSubImage");
+	glad_glBindBuffersBase = (PFNGLBINDBUFFERSBASEPROC)load("glBindBuffersBase");
+	glad_glBindBuffersRange = (PFNGLBINDBUFFERSRANGEPROC)load("glBindBuffersRange");
+	glad_glBindTextures = (PFNGLBINDTEXTURESPROC)load("glBindTextures");
+	glad_glBindSamplers = (PFNGLBINDSAMPLERSPROC)load("glBindSamplers");
+	glad_glBindImageTextures = (PFNGLBINDIMAGETEXTURESPROC)load("glBindImageTextures");
+	glad_glBindVertexBuffers = (PFNGLBINDVERTEXBUFFERSPROC)load("glBindVertexBuffers");
+}
+static void load_GL_VERSION_4_5(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_4_5) return;
+	glad_glClipControl = (PFNGLCLIPCONTROLPROC)load("glClipControl");
+	glad_glCreateTransformFeedbacks = (PFNGLCREATETRANSFORMFEEDBACKSPROC)load("glCreateTransformFeedbacks");
+	glad_glTransformFeedbackBufferBase = (PFNGLTRANSFORMFEEDBACKBUFFERBASEPROC)load("glTransformFeedbackBufferBase");
+	glad_glTransformFeedbackBufferRange = (PFNGLTRANSFORMFEEDBACKBUFFERRANGEPROC)load("glTransformFeedbackBufferRange");
+	glad_glGetTransformFeedbackiv = (PFNGLGETTRANSFORMFEEDBACKIVPROC)load("glGetTransformFeedbackiv");
+	glad_glGetTransformFeedbacki_v = (PFNGLGETTRANSFORMFEEDBACKI_VPROC)load("glGetTransformFeedbacki_v");
+	glad_glGetTransformFeedbacki64_v = (PFNGLGETTRANSFORMFEEDBACKI64_VPROC)load("glGetTransformFeedbacki64_v");
+	glad_glCreateBuffers = (PFNGLCREATEBUFFERSPROC)load("glCreateBuffers");
+	glad_glNamedBufferStorage = (PFNGLNAMEDBUFFERSTORAGEPROC)load("glNamedBufferStorage");
+	glad_glNamedBufferData = (PFNGLNAMEDBUFFERDATAPROC)load("glNamedBufferData");
+	glad_glNamedBufferSubData = (PFNGLNAMEDBUFFERSUBDATAPROC)load("glNamedBufferSubData");
+	glad_glCopyNamedBufferSubData = (PFNGLCOPYNAMEDBUFFERSUBDATAPROC)load("glCopyNamedBufferSubData");
+	glad_glClearNamedBufferData = (PFNGLCLEARNAMEDBUFFERDATAPROC)load("glClearNamedBufferData");
+	glad_glClearNamedBufferSubData = (PFNGLCLEARNAMEDBUFFERSUBDATAPROC)load("glClearNamedBufferSubData");
+	glad_glMapNamedBuffer = (PFNGLMAPNAMEDBUFFERPROC)load("glMapNamedBuffer");
+	glad_glMapNamedBufferRange = (PFNGLMAPNAMEDBUFFERRANGEPROC)load("glMapNamedBufferRange");
+	glad_glUnmapNamedBuffer = (PFNGLUNMAPNAMEDBUFFERPROC)load("glUnmapNamedBuffer");
+	glad_glFlushMappedNamedBufferRange = (PFNGLFLUSHMAPPEDNAMEDBUFFERRANGEPROC)load("glFlushMappedNamedBufferRange");
+	glad_glGetNamedBufferParameteriv = (PFNGLGETNAMEDBUFFERPARAMETERIVPROC)load("glGetNamedBufferParameteriv");
+	glad_glGetNamedBufferParameteri64v = (PFNGLGETNAMEDBUFFERPARAMETERI64VPROC)load("glGetNamedBufferParameteri64v");
+	glad_glGetNamedBufferPointerv = (PFNGLGETNAMEDBUFFERPOINTERVPROC)load("glGetNamedBufferPointerv");
+	glad_glGetNamedBufferSubData = (PFNGLGETNAMEDBUFFERSUBDATAPROC)load("glGetNamedBufferSubData");
+	glad_glCreateFramebuffers = (PFNGLCREATEFRAMEBUFFERSPROC)load("glCreateFramebuffers");
+	glad_glNamedFramebufferRenderbuffer = (PFNGLNAMEDFRAMEBUFFERRENDERBUFFERPROC)load("glNamedFramebufferRenderbuffer");
+	glad_glNamedFramebufferParameteri = (PFNGLNAMEDFRAMEBUFFERPARAMETERIPROC)load("glNamedFramebufferParameteri");
+	glad_glNamedFramebufferTexture = (PFNGLNAMEDFRAMEBUFFERTEXTUREPROC)load("glNamedFramebufferTexture");
+	glad_glNamedFramebufferTextureLayer = (PFNGLNAMEDFRAMEBUFFERTEXTURELAYERPROC)load("glNamedFramebufferTextureLayer");
+	glad_glNamedFramebufferDrawBuffer = (PFNGLNAMEDFRAMEBUFFERDRAWBUFFERPROC)load("glNamedFramebufferDrawBuffer");
+	glad_glNamedFramebufferDrawBuffers = (PFNGLNAMEDFRAMEBUFFERDRAWBUFFERSPROC)load("glNamedFramebufferDrawBuffers");
+	glad_glNamedFramebufferReadBuffer = (PFNGLNAMEDFRAMEBUFFERREADBUFFERPROC)load("glNamedFramebufferReadBuffer");
+	glad_glInvalidateNamedFramebufferData = (PFNGLINVALIDATENAMEDFRAMEBUFFERDATAPROC)load("glInvalidateNamedFramebufferData");
+	glad_glInvalidateNamedFramebufferSubData = (PFNGLINVALIDATENAMEDFRAMEBUFFERSUBDATAPROC)load("glInvalidateNamedFramebufferSubData");
+	glad_glClearNamedFramebufferiv = (PFNGLCLEARNAMEDFRAMEBUFFERIVPROC)load("glClearNamedFramebufferiv");
+	glad_glClearNamedFramebufferuiv = (PFNGLCLEARNAMEDFRAMEBUFFERUIVPROC)load("glClearNamedFramebufferuiv");
+	glad_glClearNamedFramebufferfv = (PFNGLCLEARNAMEDFRAMEBUFFERFVPROC)load("glClearNamedFramebufferfv");
+	glad_glClearNamedFramebufferfi = (PFNGLCLEARNAMEDFRAMEBUFFERFIPROC)load("glClearNamedFramebufferfi");
+	glad_glBlitNamedFramebuffer = (PFNGLBLITNAMEDFRAMEBUFFERPROC)load("glBlitNamedFramebuffer");
+	glad_glCheckNamedFramebufferStatus = (PFNGLCHECKNAMEDFRAMEBUFFERSTATUSPROC)load("glCheckNamedFramebufferStatus");
+	glad_glGetNamedFramebufferParameteriv = (PFNGLGETNAMEDFRAMEBUFFERPARAMETERIVPROC)load("glGetNamedFramebufferParameteriv");
+	glad_glGetNamedFramebufferAttachmentParameteriv = (PFNGLGETNAMEDFRAMEBUFFERATTACHMENTPARAMETERIVPROC)load("glGetNamedFramebufferAttachmentParameteriv");
+	glad_glCreateRenderbuffers = (PFNGLCREATERENDERBUFFERSPROC)load("glCreateRenderbuffers");
+	glad_glNamedRenderbufferStorage = (PFNGLNAMEDRENDERBUFFERSTORAGEPROC)load("glNamedRenderbufferStorage");
+	glad_glNamedRenderbufferStorageMultisample = (PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLEPROC)load("glNamedRenderbufferStorageMultisample");
+	glad_glGetNamedRenderbufferParameteriv = (PFNGLGETNAMEDRENDERBUFFERPARAMETERIVPROC)load("glGetNamedRenderbufferParameteriv");
+	glad_glCreateTextures = (PFNGLCREATETEXTURESPROC)load("glCreateTextures");
+	glad_glTextureBuffer = (PFNGLTEXTUREBUFFERPROC)load("glTextureBuffer");
+	glad_glTextureBufferRange = (PFNGLTEXTUREBUFFERRANGEPROC)load("glTextureBufferRange");
+	glad_glTextureStorage1D = (PFNGLTEXTURESTORAGE1DPROC)load("glTextureStorage1D");
+	glad_glTextureStorage2D = (PFNGLTEXTURESTORAGE2DPROC)load("glTextureStorage2D");
+	glad_glTextureStorage3D = (PFNGLTEXTURESTORAGE3DPROC)load("glTextureStorage3D");
+	glad_glTextureStorage2DMultisample = (PFNGLTEXTURESTORAGE2DMULTISAMPLEPROC)load("glTextureStorage2DMultisample");
+	glad_glTextureStorage3DMultisample = (PFNGLTEXTURESTORAGE3DMULTISAMPLEPROC)load("glTextureStorage3DMultisample");
+	glad_glTextureSubImage1D = (PFNGLTEXTURESUBIMAGE1DPROC)load("glTextureSubImage1D");
+	glad_glTextureSubImage2D = (PFNGLTEXTURESUBIMAGE2DPROC)load("glTextureSubImage2D");
+	glad_glTextureSubImage3D = (PFNGLTEXTURESUBIMAGE3DPROC)load("glTextureSubImage3D");
+	glad_glCompressedTextureSubImage1D = (PFNGLCOMPRESSEDTEXTURESUBIMAGE1DPROC)load("glCompressedTextureSubImage1D");
+	glad_glCompressedTextureSubImage2D = (PFNGLCOMPRESSEDTEXTURESUBIMAGE2DPROC)load("glCompressedTextureSubImage2D");
+	glad_glCompressedTextureSubImage3D = (PFNGLCOMPRESSEDTEXTURESUBIMAGE3DPROC)load("glCompressedTextureSubImage3D");
+	glad_glCopyTextureSubImage1D = (PFNGLCOPYTEXTURESUBIMAGE1DPROC)load("glCopyTextureSubImage1D");
+	glad_glCopyTextureSubImage2D = (PFNGLCOPYTEXTURESUBIMAGE2DPROC)load("glCopyTextureSubImage2D");
+	glad_glCopyTextureSubImage3D = (PFNGLCOPYTEXTURESUBIMAGE3DPROC)load("glCopyTextureSubImage3D");
+	glad_glTextureParameterf = (PFNGLTEXTUREPARAMETERFPROC)load("glTextureParameterf");
+	glad_glTextureParameterfv = (PFNGLTEXTUREPARAMETERFVPROC)load("glTextureParameterfv");
+	glad_glTextureParameteri = (PFNGLTEXTUREPARAMETERIPROC)load("glTextureParameteri");
+	glad_glTextureParameterIiv = (PFNGLTEXTUREPARAMETERIIVPROC)load("glTextureParameterIiv");
+	glad_glTextureParameterIuiv = (PFNGLTEXTUREPARAMETERIUIVPROC)load("glTextureParameterIuiv");
+	glad_glTextureParameteriv = (PFNGLTEXTUREPARAMETERIVPROC)load("glTextureParameteriv");
+	glad_glGenerateTextureMipmap = (PFNGLGENERATETEXTUREMIPMAPPROC)load("glGenerateTextureMipmap");
+	glad_glBindTextureUnit = (PFNGLBINDTEXTUREUNITPROC)load("glBindTextureUnit");
+	glad_glGetTextureImage = (PFNGLGETTEXTUREIMAGEPROC)load("glGetTextureImage");
+	glad_glGetCompressedTextureImage = (PFNGLGETCOMPRESSEDTEXTUREIMAGEPROC)load("glGetCompressedTextureImage");
+	glad_glGetTextureLevelParameterfv = (PFNGLGETTEXTURELEVELPARAMETERFVPROC)load("glGetTextureLevelParameterfv");
+	glad_glGetTextureLevelParameteriv = (PFNGLGETTEXTURELEVELPARAMETERIVPROC)load("glGetTextureLevelParameteriv");
+	glad_glGetTextureParameterfv = (PFNGLGETTEXTUREPARAMETERFVPROC)load("glGetTextureParameterfv");
+	glad_glGetTextureParameterIiv = (PFNGLGETTEXTUREPARAMETERIIVPROC)load("glGetTextureParameterIiv");
+	glad_glGetTextureParameterIuiv = (PFNGLGETTEXTUREPARAMETERIUIVPROC)load("glGetTextureParameterIuiv");
+	glad_glGetTextureParameteriv = (PFNGLGETTEXTUREPARAMETERIVPROC)load("glGetTextureParameteriv");
+	glad_glCreateVertexArrays = (PFNGLCREATEVERTEXARRAYSPROC)load("glCreateVertexArrays");
+	glad_glDisableVertexArrayAttrib = (PFNGLDISABLEVERTEXARRAYATTRIBPROC)load("glDisableVertexArrayAttrib");
+	glad_glEnableVertexArrayAttrib = (PFNGLENABLEVERTEXARRAYATTRIBPROC)load("glEnableVertexArrayAttrib");
+	glad_glVertexArrayElementBuffer = (PFNGLVERTEXARRAYELEMENTBUFFERPROC)load("glVertexArrayElementBuffer");
+	glad_glVertexArrayVertexBuffer = (PFNGLVERTEXARRAYVERTEXBUFFERPROC)load("glVertexArrayVertexBuffer");
+	glad_glVertexArrayVertexBuffers = (PFNGLVERTEXARRAYVERTEXBUFFERSPROC)load("glVertexArrayVertexBuffers");
+	glad_glVertexArrayAttribBinding = (PFNGLVERTEXARRAYATTRIBBINDINGPROC)load("glVertexArrayAttribBinding");
+	glad_glVertexArrayAttribFormat = (PFNGLVERTEXARRAYATTRIBFORMATPROC)load("glVertexArrayAttribFormat");
+	glad_glVertexArrayAttribIFormat = (PFNGLVERTEXARRAYATTRIBIFORMATPROC)load("glVertexArrayAttribIFormat");
+	glad_glVertexArrayAttribLFormat = (PFNGLVERTEXARRAYATTRIBLFORMATPROC)load("glVertexArrayAttribLFormat");
+	glad_glVertexArrayBindingDivisor = (PFNGLVERTEXARRAYBINDINGDIVISORPROC)load("glVertexArrayBindingDivisor");
+	glad_glGetVertexArrayiv = (PFNGLGETVERTEXARRAYIVPROC)load("glGetVertexArrayiv");
+	glad_glGetVertexArrayIndexediv = (PFNGLGETVERTEXARRAYINDEXEDIVPROC)load("glGetVertexArrayIndexediv");
+	glad_glGetVertexArrayIndexed64iv = (PFNGLGETVERTEXARRAYINDEXED64IVPROC)load("glGetVertexArrayIndexed64iv");
+	glad_glCreateSamplers = (PFNGLCREATESAMPLERSPROC)load("glCreateSamplers");
+	glad_glCreateProgramPipelines = (PFNGLCREATEPROGRAMPIPELINESPROC)load("glCreateProgramPipelines");
+	glad_glCreateQueries = (PFNGLCREATEQUERIESPROC)load("glCreateQueries");
+	glad_glGetQueryBufferObjecti64v = (PFNGLGETQUERYBUFFEROBJECTI64VPROC)load("glGetQueryBufferObjecti64v");
+	glad_glGetQueryBufferObjectiv = (PFNGLGETQUERYBUFFEROBJECTIVPROC)load("glGetQueryBufferObjectiv");
+	glad_glGetQueryBufferObjectui64v = (PFNGLGETQUERYBUFFEROBJECTUI64VPROC)load("glGetQueryBufferObjectui64v");
+	glad_glGetQueryBufferObjectuiv = (PFNGLGETQUERYBUFFEROBJECTUIVPROC)load("glGetQueryBufferObjectuiv");
+	glad_glMemoryBarrierByRegion = (PFNGLMEMORYBARRIERBYREGIONPROC)load("glMemoryBarrierByRegion");
+	glad_glGetTextureSubImage = (PFNGLGETTEXTURESUBIMAGEPROC)load("glGetTextureSubImage");
+	glad_glGetCompressedTextureSubImage = (PFNGLGETCOMPRESSEDTEXTURESUBIMAGEPROC)load("glGetCompressedTextureSubImage");
+	glad_glGetGraphicsResetStatus = (PFNGLGETGRAPHICSRESETSTATUSPROC)load("glGetGraphicsResetStatus");
+	glad_glGetnCompressedTexImage = (PFNGLGETNCOMPRESSEDTEXIMAGEPROC)load("glGetnCompressedTexImage");
+	glad_glGetnTexImage = (PFNGLGETNTEXIMAGEPROC)load("glGetnTexImage");
+	glad_glGetnUniformdv = (PFNGLGETNUNIFORMDVPROC)load("glGetnUniformdv");
+	glad_glGetnUniformfv = (PFNGLGETNUNIFORMFVPROC)load("glGetnUniformfv");
+	glad_glGetnUniformiv = (PFNGLGETNUNIFORMIVPROC)load("glGetnUniformiv");
+	glad_glGetnUniformuiv = (PFNGLGETNUNIFORMUIVPROC)load("glGetnUniformuiv");
+	glad_glReadnPixels = (PFNGLREADNPIXELSPROC)load("glReadnPixels");
+	glad_glGetnMapdv = (PFNGLGETNMAPDVPROC)load("glGetnMapdv");
+	glad_glGetnMapfv = (PFNGLGETNMAPFVPROC)load("glGetnMapfv");
+	glad_glGetnMapiv = (PFNGLGETNMAPIVPROC)load("glGetnMapiv");
+	glad_glGetnPixelMapfv = (PFNGLGETNPIXELMAPFVPROC)load("glGetnPixelMapfv");
+	glad_glGetnPixelMapuiv = (PFNGLGETNPIXELMAPUIVPROC)load("glGetnPixelMapuiv");
+	glad_glGetnPixelMapusv = (PFNGLGETNPIXELMAPUSVPROC)load("glGetnPixelMapusv");
+	glad_glGetnPolygonStipple = (PFNGLGETNPOLYGONSTIPPLEPROC)load("glGetnPolygonStipple");
+	glad_glGetnColorTable = (PFNGLGETNCOLORTABLEPROC)load("glGetnColorTable");
+	glad_glGetnConvolutionFilter = (PFNGLGETNCONVOLUTIONFILTERPROC)load("glGetnConvolutionFilter");
+	glad_glGetnSeparableFilter = (PFNGLGETNSEPARABLEFILTERPROC)load("glGetnSeparableFilter");
+	glad_glGetnHistogram = (PFNGLGETNHISTOGRAMPROC)load("glGetnHistogram");
+	glad_glGetnMinmax = (PFNGLGETNMINMAXPROC)load("glGetnMinmax");
+	glad_glTextureBarrier = (PFNGLTEXTUREBARRIERPROC)load("glTextureBarrier");
+}
+static void load_GL_VERSION_4_6(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_4_6) return;
+	glad_glSpecializeShader = (PFNGLSPECIALIZESHADERPROC)load("glSpecializeShader");
+	glad_glMultiDrawArraysIndirectCount = (PFNGLMULTIDRAWARRAYSINDIRECTCOUNTPROC)load("glMultiDrawArraysIndirectCount");
+	glad_glMultiDrawElementsIndirectCount = (PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC)load("glMultiDrawElementsIndirectCount");
+	glad_glPolygonOffsetClamp = (PFNGLPOLYGONOFFSETCLAMPPROC)load("glPolygonOffsetClamp");
+}
+static int find_extensionsGL(void) {
+	if (!get_exts()) return 0;
+	(void)&has_ext;
+	free_exts();
+	return 1;
+}
+
+static void find_coreGL(void) {
+
+    /* Thank you @elmindreda
+     * https://github.com/elmindreda/greg/blob/master/templates/greg.c.in#L176
+     * https://github.com/glfw/glfw/blob/master/src/context.c#L36
+     */
+    int i, major, minor;
+
+    const char* version;
+    const char* prefixes[] = {
+        "OpenGL ES-CM ",
+        "OpenGL ES-CL ",
+        "OpenGL ES ",
+        NULL
+    };
+
+    version = (const char*) glGetString(GL_VERSION);
+    if (!version) return;
+
+    for (i = 0;  prefixes[i];  i++) {
+        const size_t length = strlen(prefixes[i]);
+        if (strncmp(version, prefixes[i], length) == 0) {
+            version += length;
+            break;
+        }
+    }
+
+/* PR #18 */
+#ifdef _MSC_VER
+    sscanf_s(version, "%d.%d", &major, &minor);
+#else
+    sscanf(version, "%d.%d", &major, &minor);
+#endif
+
+    GLVersion.major = major; GLVersion.minor = minor;
+    max_loaded_major = major; max_loaded_minor = minor;
+	GLAD_GL_VERSION_1_0 = (major == 1 && minor >= 0) || major > 1;
+	GLAD_GL_VERSION_1_1 = (major == 1 && minor >= 1) || major > 1;
+	GLAD_GL_VERSION_1_2 = (major == 1 && minor >= 2) || major > 1;
+	GLAD_GL_VERSION_1_3 = (major == 1 && minor >= 3) || major > 1;
+	GLAD_GL_VERSION_1_4 = (major == 1 && minor >= 4) || major > 1;
+	GLAD_GL_VERSION_1_5 = (major == 1 && minor >= 5) || major > 1;
+	GLAD_GL_VERSION_2_0 = (major == 2 && minor >= 0) || major > 2;
+	GLAD_GL_VERSION_2_1 = (major == 2 && minor >= 1) || major > 2;
+	GLAD_GL_VERSION_3_0 = (major == 3 && minor >= 0) || major > 3;
+	GLAD_GL_VERSION_3_1 = (major == 3 && minor >= 1) || major > 3;
+	GLAD_GL_VERSION_3_2 = (major == 3 && minor >= 2) || major > 3;
+	GLAD_GL_VERSION_3_3 = (major == 3 && minor >= 3) || major > 3;
+	GLAD_GL_VERSION_4_0 = (major == 4 && minor >= 0) || major > 4;
+	GLAD_GL_VERSION_4_1 = (major == 4 && minor >= 1) || major > 4;
+	GLAD_GL_VERSION_4_2 = (major == 4 && minor >= 2) || major > 4;
+	GLAD_GL_VERSION_4_3 = (major == 4 && minor >= 3) || major > 4;
+	GLAD_GL_VERSION_4_4 = (major == 4 && minor >= 4) || major > 4;
+	GLAD_GL_VERSION_4_5 = (major == 4 && minor >= 5) || major > 4;
+	GLAD_GL_VERSION_4_6 = (major == 4 && minor >= 6) || major > 4;
+	if (GLVersion.major > 4 || (GLVersion.major >= 4 && GLVersion.minor >= 6)) {
+		max_loaded_major = 4;
+		max_loaded_minor = 6;
+	}
+}
+
+int gladLoadGLLoader(GLADloadproc load) {
+	GLVersion.major = 0; GLVersion.minor = 0;
+	glGetString = (PFNGLGETSTRINGPROC)load("glGetString");
+	if(glGetString == NULL) return 0;
+	if(glGetString(GL_VERSION) == NULL) return 0;
+	find_coreGL();
+	load_GL_VERSION_1_0(load);
+	load_GL_VERSION_1_1(load);
+	load_GL_VERSION_1_2(load);
+	load_GL_VERSION_1_3(load);
+	load_GL_VERSION_1_4(load);
+	load_GL_VERSION_1_5(load);
+	load_GL_VERSION_2_0(load);
+	load_GL_VERSION_2_1(load);
+	load_GL_VERSION_3_0(load);
+	load_GL_VERSION_3_1(load);
+	load_GL_VERSION_3_2(load);
+	load_GL_VERSION_3_3(load);
+	load_GL_VERSION_4_0(load);
+	load_GL_VERSION_4_1(load);
+	load_GL_VERSION_4_2(load);
+	load_GL_VERSION_4_3(load);
+	load_GL_VERSION_4_4(load);
+	load_GL_VERSION_4_5(load);
+	load_GL_VERSION_4_6(load);
+
+	if (!find_extensionsGL()) return 0;
+	return GLVersion.major != 0 || GLVersion.minor != 0;
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/CONTRIBUTORS.md b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/CONTRIBUTORS.md
new file mode 100644
index 000000000000..1371aedbc43a
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/CONTRIBUTORS.md
@@ -0,0 +1,299 @@
+# Acknowledgements
+
+GLFW exists because people around the world donated their time and lent their
+skills.  This list only includes contributions to the main repository and
+excludes other invaluable contributions like language bindings and text and
+video tutorials.
+
+ - Bobyshev Alexander
+ - Laurent Aphecetche
+ - Matt Arsenault
+ - Takuro Ashie
+ - ashishgamedev
+ - David Avedissian
+ - Luca Bacci
+ - Keith Bauer
+ - John Bartholomew
+ - Coşku Baş
+ - Bayemite
+ - Niklas Behrens
+ - Andrew Belt
+ - Nevyn Bengtsson
+ - Niklas Bergström
+ - Denis Bernard
+ - BiBi
+ - Doug Binks
+ - blanco
+ - Waris Boonyasiriwat
+ - Kyle Brenneman
+ - Rok Breulj
+ - TheBrokenRail
+ - Kai Burjack
+ - Martin Capitanio
+ - Nicolas Caramelli
+ - David Carlier
+ - Arturo Castro
+ - Jose Luis Cercós Pita
+ - Chi-kwan Chan
+ - Victor Chernyakin
+ - TheChocolateOre
+ - Ali Chraghi
+ - Joseph Chua
+ - Ian Clarkson
+ - Michał Cichoń
+ - Lambert Clara
+ - Anna Clarke
+ - Josh Codd
+ - Yaron Cohen-Tal
+ - Omar Cornut
+ - Andrew Corrigan
+ - Bailey Cosier
+ - Noel Cower
+ - James Cowgill
+ - CuriouserThing
+ - Bill Currie
+ - Jason Daly
+ - danhambleton
+ - Jarrod Davis
+ - Olivier Delannoy
+ - Paul R. Deppe
+ - Michael Dickens
+ - Роман Донченко
+ - Mario Dorn
+ - Wolfgang Draxinger
+ - Jonathan Dummer
+ - Ralph Eastwood
+ - Fredrik Ehnbom
+ - Robin Eklind
+ - Jan Ekström
+ - Siavash Eliasi
+ - Ahmad Fatoum
+ - Nikita Fediuchin
+ - Felipe Ferreira
+ - Michael Fogleman
+ - forworldm
+ - Jason Francis
+ - Gerald Franz
+ - Mário Freitas
+ - GeO4d
+ - Marcus Geelnard
+ - Gegy
+ - ghuser404
+ - Charles Giessen
+ - Ryan C. Gordon
+ - Stephen Gowen
+ - Kovid Goyal
+ - Kevin Grandemange
+ - Eloi Marín Gratacós
+ - Grzesiek11
+ - Stefan Gustavson
+ - Andrew Gutekanst
+ - Stephen Gutekanst
+ - Jonathan Hale
+ - Daniel Hauser
+ - hdf89shfdfs
+ - Moritz Heinemann
+ - Sylvain Hellegouarch
+ - Björn Hempel
+ - Matthew Henry
+ - heromyth
+ - Lucas Hinderberger
+ - Paul Holden
+ - Hajime Hoshi
+ - Warren Hu
+ - Charles Huber
+ - Brent Huisman
+ - Florian Hülsmann
+ - illustris
+ - InKryption
+ - IntellectualKitty
+ - Aaron Jacobs
+ - JannikGM
+ - Erik S. V. Jansson
+ - jjYBdx4IL
+ - Peter Johnson
+ - Toni Jovanoski
+ - Arseny Kapoulkine
+ - Cem Karan
+ - Osman Keskin
+ - Koray Kilinc
+ - Josh Kilmer
+ - Byunghoon Kim
+ - Cameron King
+ - Peter Knut
+ - Christoph Kubisch
+ - Yuri Kunde Schlesner
+ - Rokas Kupstys
+ - Konstantin Käfer
+ - Eric Larson
+ - Guillaume Lebrun
+ - Francis Lecavalier
+ - Jong Won Lee
+ - Robin Leffmann
+ - Glenn Lewis
+ - Shane Liesegang
+ - Anders Lindqvist
+ - Leon Linhart
+ - Marco Lizza
+ - lo-v-ol
+ - Eyal Lotem
+ - Aaron Loucks
+ - Ned Loynd
+ - Luflosi
+ - lukect
+ - Tristam MacDonald
+ - Jean-Luc Mackail
+ - Hans Mackowiak
+ - Ramiro Magno
+ - Дмитри Малышев
+ - Zbigniew Mandziejewicz
+ - Adam Marcus
+ - Célestin Marot
+ - Kyle McDonald
+ - David V. McKay
+ - David Medlock
+ - Bryce Mehring
+ - Jonathan Mercier
+ - Marcel Metz
+ - Liam Middlebrook
+ - mightgoyardstill
+ - Ave Milia
+ - Icyllis Milica
+ - Jonathan Miller
+ - Kenneth Miller
+ - Bruce Mitchener
+ - Jack Moffitt
+ - Ravi Mohan
+ - Jeff Molofee
+ - Alexander Monakov
+ - Pierre Morel
+ - Jon Morton
+ - Pierre Moulon
+ - Martins Mozeiko
+ - Pascal Muetschard
+ - James Murphy
+ - Julian Møller
+ - Julius Häger
+ - Nat!
+ - NateIsStalling
+ - ndogxj
+ - F. Nedelec
+ - n3rdopolis
+ - Kristian Nielsen
+ - Joel Niemelä
+ - Victor Nova
+ - Kamil Nowakowski
+ - onox
+ - Denis Ovod
+ - Ozzy
+ - Andri Pálsson
+ - luz paz
+ - Peoro
+ - Braden Pellett
+ - Christopher Pelloux
+ - Michael Pennington
+ - Arturo J. Pérez
+ - Vladimir Perminov
+ - Olivier Perret
+ - Anthony Pesch
+ - Orson Peters
+ - Emmanuel Gil Peyrot
+ - Cyril Pichard
+ - Pilzschaf
+ - Keith Pitt
+ - Stanislav Podgorskiy
+ - Konstantin Podsvirov
+ - Nathan Poirier
+ - Pokechu22
+ - Alexandre Pretyman
+ - Pablo Prietz
+ - przemekmirek
+ - pthom
+ - Martin Pulec
+ - Guillaume Racicot
+ - Juan Ramos
+ - Christian Rauch
+ - Philip Rideout
+ - Eddie Ringle
+ - Max Risuhin
+ - Joe Roback
+ - Jorge Rodriguez
+ - Jari Ronkainen
+ - Luca Rood
+ - Ed Ropple
+ - Aleksey Rybalkin
+ - Mikko Rytkönen
+ - Riku Salminen
+ - Yoshinori Sano
+ - Brandon Schaefer
+ - Sebastian Schuberth
+ - Scr3amer
+ - Jan Schuerkamp
+ - Christian Sdunek
+ - Matt Sealey
+ - Steve Sexton
+ - Arkady Shapkin
+ - Mingjie Shen
+ - Ali Sherief
+ - Yoshiki Shibukawa
+ - Dmitri Shuralyov
+ - Joao da Silva
+ - Daniel Sieger
+ - Daljit Singh
+ - Michael Skec
+ - Daniel Skorupski
+ - Slemmie
+ - Anthony Smith
+ - Bradley Smith
+ - Cliff Smolinsky
+ - Patrick Snape
+ - Erlend Sogge Heggen
+ - Olivier Sohn
+ - Julian Squires
+ - Johannes Stein
+ - Pontus Stenetorp
+ - Michael Stocker
+ - Justin Stoecker
+ - Elviss Strazdins
+ - Paul Sultana
+ - Nathan Sweet
+ - TTK-Bandit
+ - Nuno Teixeira
+ - Jared Tiala
+ - Sergey Tikhomirov
+ - Arthur Tombs
+ - TronicLabs
+ - Ioannis Tsakpinis
+ - Samuli Tuomola
+ - Matthew Turner
+ - urraka
+ - Elias Vanderstuyft
+ - Stef Velzel
+ - Jari Vetoniemi
+ - Ricardo Vieira
+ - Nicholas Vitovitch
+ - Vladimír Vondruš
+ - Simon Voordouw
+ - Corentin Wallez
+ - Torsten Walluhn
+ - Patrick Walton
+ - Jim Wang
+ - Xo Wang
+ - Andre Weissflog
+ - Jay Weisskopf
+ - Frank Wille
+ - Andy Williams
+ - Joel Winarske
+ - Richard A. Wilkes
+ - Tatsuya Yatagawa
+ - Ryogo Yoshimura
+ - Lukas Zanner
+ - Andrey Zholos
+ - Aihui Zhu
+ - Santi Zupancic
+ - Jonas Ådahl
+ - Lasse Öörni
+ - Leonard König
+ - All the unmentioned and anonymous contributors in the GLFW community, for bug
+   reports, patches, feedback, testing and encouragement
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/LICENSE.md b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/LICENSE.md
new file mode 100644
index 000000000000..7494a3f689ca
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/LICENSE.md
@@ -0,0 +1,23 @@
+Copyright (c) 2002-2006 Marcus Geelnard
+
+Copyright (c) 2006-2019 Camilla Löwy
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not
+   claim that you wrote the original software. If you use this software
+   in a product, an acknowledgment in the product documentation would
+   be appreciated but is not required.
+
+2. Altered source versions must be plainly marked as such, and must not
+   be misrepresented as being the original software.
+
+3. This notice may not be removed or altered from any source
+   distribution.
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/README.md b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/README.md
new file mode 100644
index 000000000000..10044faf1494
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/README.md
@@ -0,0 +1,151 @@
+# GLFW
+
+[![Build status](https://github.com/glfw/glfw/actions/workflows/build.yml/badge.svg)](https://github.com/glfw/glfw/actions)
+[![Build status](https://ci.appveyor.com/api/projects/status/0kf0ct9831i5l6sp/branch/master?svg=true)](https://ci.appveyor.com/project/elmindreda/glfw)
+
+## Introduction
+
+GLFW is an Open Source, multi-platform library for OpenGL, OpenGL ES and Vulkan
+application development.  It provides a simple, platform-independent API for
+creating windows, contexts and surfaces, reading input, handling events, etc.
+
+GLFW natively supports Windows, macOS and Linux and other Unix-like systems.  On
+Linux both Wayland and X11 are supported.
+
+GLFW is licensed under the [zlib/libpng
+license](https://www.glfw.org/license.html).
+
+You can [download](https://www.glfw.org/download.html) the latest stable release
+as source or Windows binaries.  Each release starting with 3.0 also has
+a corresponding [annotated tag](https://github.com/glfw/glfw/releases) with
+source and binary archives.
+
+The [documentation](https://www.glfw.org/docs/latest/) is available online and is
+included in all source and binary archives.  See the [release
+notes](https://www.glfw.org/docs/latest/news.html) for new features, caveats and
+deprecations in the latest release.  For more details see the [version
+history](https://www.glfw.org/changelog.html).
+
+The `master` branch is the stable integration branch and _should_ always compile
+and run on all supported platforms, although details of newly added features may
+change until they have been included in a release.  New features and many bug
+fixes live in [other branches](https://github.com/glfw/glfw/branches/all) until
+they are stable enough to merge.
+
+If you are new to GLFW, you may find the
+[tutorial](https://www.glfw.org/docs/latest/quick.html) for GLFW 3 useful.  If
+you have used GLFW 2 in the past, there is a [transition
+guide](https://www.glfw.org/docs/latest/moving.html) for moving to the GLFW
+3 API.
+
+GLFW exists because of the contributions of [many people](CONTRIBUTORS.md)
+around the world, whether by reporting bugs, providing community support, adding
+features, reviewing or testing code, debugging, proofreading docs, suggesting
+features or fixing bugs.
+
+
+## Compiling GLFW
+
+GLFW is written primarily in C99, with parts of macOS support being written in
+Objective-C.  GLFW itself requires only the headers and libraries for your OS
+and window system.  It does not need any additional headers for context creation
+APIs (WGL, GLX, EGL, NSGL, OSMesa) or rendering APIs (OpenGL, OpenGL ES, Vulkan)
+to enable support for them.
+
+GLFW supports compilation on Windows with Visual C++ 2013 and later, MinGW and
+MinGW-w64, on macOS with Clang and on Linux and other Unix-like systems with GCC
+and Clang.  It will likely compile in other environments as well, but this is
+not regularly tested.
+
+There are [pre-compiled binaries](https://www.glfw.org/download.html) available
+for all supported compilers on Windows and macOS.
+
+See the [compilation guide](https://www.glfw.org/docs/latest/compile.html) for
+more information about how to compile GLFW yourself.
+
+
+## Using GLFW
+
+See the [documentation](https://www.glfw.org/docs/latest/) for tutorials, guides
+and the API reference.
+
+
+## Contributing to GLFW
+
+See the [contribution
+guide](https://github.com/glfw/glfw/blob/master/docs/CONTRIBUTING.md) for
+more information.
+
+
+## System requirements
+
+GLFW supports Windows XP and later and macOS 10.11 and later.  Linux and other
+Unix-like systems running the X Window System are supported even without
+a desktop environment or modern extensions, although some features require
+a running window or clipboard manager.  The OSMesa backend requires Mesa 6.3.
+
+See the [compatibility guide](https://www.glfw.org/docs/latest/compat.html)
+in the documentation for more information.
+
+
+## Dependencies
+
+GLFW itself needs only CMake 3.4 or later and the headers and libraries for your
+OS and window system.
+
+The examples and test programs depend on a number of tiny libraries.  These are
+located in the `deps/` directory.
+
+ - [getopt\_port](https://github.com/kimgr/getopt_port/) for examples
+   with command-line options
+ - [TinyCThread](https://github.com/tinycthread/tinycthread) for threaded
+   examples
+ - [glad2](https://github.com/Dav1dde/glad) for loading OpenGL and Vulkan
+   functions
+ - [linmath.h](https://github.com/datenwolf/linmath.h) for linear algebra in
+   examples
+ - [Nuklear](https://github.com/Immediate-Mode-UI/Nuklear) for test and example UI
+ - [stb\_image\_write](https://github.com/nothings/stb) for writing images to disk
+
+The documentation is generated with [Doxygen](https://doxygen.org/) if CMake can
+find that tool.
+
+
+## Reporting bugs
+
+Bugs are reported to our [issue tracker](https://github.com/glfw/glfw/issues).
+Please check the [contribution
+guide](https://github.com/glfw/glfw/blob/master/docs/CONTRIBUTING.md) for
+information on what to include when reporting a bug.
+
+
+## Changelog since 3.4
+
+ - Added `GLFW_UNLIMITED_MOUSE_BUTTONS` input mode that allows mouse buttons beyond
+   the limit of the mouse button tokens to be reported (#2423)
+ - [Cocoa] Added `QuartzCore` framework as link-time dependency
+ - [Cocoa] Removed support for OS X 10.10 Yosemite and earlier (#2506)
+ - [Wayland] Bugfix: The fractional scaling related objects were not destroyed
+ - [Wayland] Bugfix: `glfwInit` would segfault on compositor with no seat (#2517)
+ - [Wayland] Bugfix: A drag entering a non-GLFW surface could cause a segfault
+ - [Null] Added Vulkan 'window' surface creation via `VK_EXT_headless_surface`
+ - [Null] Added EGL context creation on Mesa via `EGL_MESA_platform_surfaceless`
+ - [EGL] Allowed native access on Wayland with `GLFW_CONTEXT_CREATION_API` set to
+   `GLFW_NATIVE_CONTEXT_API` (#2518)
+
+
+## Contact
+
+On [glfw.org](https://www.glfw.org/) you can find the latest version of GLFW, as
+well as news, documentation and other information about the project.
+
+If you have questions related to the use of GLFW, we have a
+[forum](https://discourse.glfw.org/).
+
+If you have a bug to report, a patch to submit or a feature you'd like to
+request, please file it in the
+[issue tracker](https://github.com/glfw/glfw/issues) on GitHub.
+
+Finally, if you're interested in helping out with the development of GLFW or
+porting it to your favorite platform, join us on the forum or GitHub.
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/getopt.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/getopt.c
new file mode 100644
index 000000000000..9743046f9104
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/getopt.c
@@ -0,0 +1,230 @@
+/* Copyright (c) 2012, Kim Gräsman
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  * Neither the name of Kim Gräsman nor the names of contributors may be used
+ *    to endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL KIM GRÄSMAN BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "getopt.h"
+
+#include <stddef.h>
+#include <string.h>
+
+const int no_argument = 0;
+const int required_argument = 1;
+const int optional_argument = 2;
+
+char* optarg;
+int optopt;
+/* The variable optind [...] shall be initialized to 1 by the system. */
+int optind = 1;
+int opterr;
+
+static char* optcursor = NULL;
+
+/* Implemented based on [1] and [2] for optional arguments.
+   optopt is handled FreeBSD-style, per [3].
+   Other GNU and FreeBSD extensions are purely accidental.
+
+[1] http://pubs.opengroup.org/onlinepubs/000095399/functions/getopt.html
+[2] http://www.kernel.org/doc/man-pages/online/pages/man3/getopt.3.html
+[3] http://www.freebsd.org/cgi/man.cgi?query=getopt&sektion=3&manpath=FreeBSD+9.0-RELEASE
+*/
+int getopt(int argc, char* const argv[], const char* optstring) {
+  int optchar = -1;
+  const char* optdecl = NULL;
+
+  optarg = NULL;
+  opterr = 0;
+  optopt = 0;
+
+  /* Unspecified, but we need it to avoid overrunning the argv bounds. */
+  if (optind >= argc)
+    goto no_more_optchars;
+
+  /* If, when getopt() is called argv[optind] is a null pointer, getopt()
+     shall return -1 without changing optind. */
+  if (argv[optind] == NULL)
+    goto no_more_optchars;
+
+  /* If, when getopt() is called *argv[optind]  is not the character '-',
+     getopt() shall return -1 without changing optind. */
+  if (*argv[optind] != '-')
+    goto no_more_optchars;
+
+  /* If, when getopt() is called argv[optind] points to the string "-",
+     getopt() shall return -1 without changing optind. */
+  if (strcmp(argv[optind], "-") == 0)
+    goto no_more_optchars;
+
+  /* If, when getopt() is called argv[optind] points to the string "--",
+     getopt() shall return -1 after incrementing optind. */
+  if (strcmp(argv[optind], "--") == 0) {
+    ++optind;
+    goto no_more_optchars;
+  }
+
+  if (optcursor == NULL || *optcursor == '\0')
+    optcursor = argv[optind] + 1;
+
+  optchar = *optcursor;
+
+  /* FreeBSD: The variable optopt saves the last known option character
+     returned by getopt(). */
+  optopt = optchar;
+
+  /* The getopt() function shall return the next option character (if one is
+     found) from argv that matches a character in optstring, if there is
+     one that matches. */
+  optdecl = strchr(optstring, optchar);
+  if (optdecl) {
+    /* [I]f a character is followed by a colon, the option takes an
+       argument. */
+    if (optdecl[1] == ':') {
+      optarg = ++optcursor;
+      if (*optarg == '\0') {
+        /* GNU extension: Two colons mean an option takes an
+           optional arg; if there is text in the current argv-element
+           (i.e., in the same word as the option name itself, for example,
+           "-oarg"), then it is returned in optarg, otherwise optarg is set
+           to zero. */
+        if (optdecl[2] != ':') {
+          /* If the option was the last character in the string pointed to by
+             an element of argv, then optarg shall contain the next element
+             of argv, and optind shall be incremented by 2. If the resulting
+             value of optind is greater than argc, this indicates a missing
+             option-argument, and getopt() shall return an error indication.
+
+             Otherwise, optarg shall point to the string following the
+             option character in that element of argv, and optind shall be
+             incremented by 1.
+          */
+          if (++optind < argc) {
+            optarg = argv[optind];
+          } else {
+            /* If it detects a missing option-argument, it shall return the
+               colon character ( ':' ) if the first character of optstring
+               was a colon, or a question-mark character ( '?' ) otherwise.
+            */
+            optarg = NULL;
+            optchar = (optstring[0] == ':') ? ':' : '?';
+          }
+        } else {
+          optarg = NULL;
+        }
+      }
+
+      optcursor = NULL;
+    }
+  } else {
+    /* If getopt() encounters an option character that is not contained in
+       optstring, it shall return the question-mark ( '?' ) character. */
+    optchar = '?';
+  }
+
+  if (optcursor == NULL || *++optcursor == '\0')
+    ++optind;
+
+  return optchar;
+
+no_more_optchars:
+  optcursor = NULL;
+  return -1;
+}
+
+/* Implementation based on [1].
+
+[1] http://www.kernel.org/doc/man-pages/online/pages/man3/getopt.3.html
+*/
+int getopt_long(int argc, char* const argv[], const char* optstring,
+  const struct option* longopts, int* longindex) {
+  const struct option* o = longopts;
+  const struct option* match = NULL;
+  int num_matches = 0;
+  size_t argument_name_length = 0;
+  const char* current_argument = NULL;
+  int retval = -1;
+
+  optarg = NULL;
+  optopt = 0;
+
+  if (optind >= argc)
+    return -1;
+
+  if (strlen(argv[optind]) < 3 || strncmp(argv[optind], "--", 2) != 0)
+    return getopt(argc, argv, optstring);
+
+  /* It's an option; starts with -- and is longer than two chars. */
+  current_argument = argv[optind] + 2;
+  argument_name_length = strcspn(current_argument, "=");
+  for (; o->name; ++o) {
+    if (strncmp(o->name, current_argument, argument_name_length) == 0) {
+      match = o;
+      ++num_matches;
+    }
+  }
+
+  if (num_matches == 1) {
+    /* If longindex is not NULL, it points to a variable which is set to the
+       index of the long option relative to longopts. */
+    if (longindex)
+      *longindex = (int) (match - longopts);
+
+    /* If flag is NULL, then getopt_long() shall return val.
+       Otherwise, getopt_long() returns 0, and flag shall point to a variable
+       which shall be set to val if the option is found, but left unchanged if
+       the option is not found. */
+    if (match->flag)
+      *(match->flag) = match->val;
+
+    retval = match->flag ? 0 : match->val;
+
+    if (match->has_arg != no_argument) {
+      optarg = strchr(argv[optind], '=');
+      if (optarg != NULL)
+        ++optarg;
+
+      if (match->has_arg == required_argument) {
+        /* Only scan the next argv for required arguments. Behavior is not
+           specified, but has been observed with Ubuntu and Mac OSX. */
+        if (optarg == NULL && ++optind < argc) {
+          optarg = argv[optind];
+        }
+
+        if (optarg == NULL)
+          retval = ':';
+      }
+    } else if (strchr(argv[optind], '=')) {
+      /* An argument was provided to a non-argument option.
+         I haven't seen this specified explicitly, but both GNU and BSD-based
+         implementations show this behavior.
+      */
+      retval = '?';
+    }
+  } else {
+    /* Unknown option or ambiguous match. */
+    retval = '?';
+  }
+
+  ++optind;
+  return retval;
+}
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/getopt.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/getopt.h
new file mode 100644
index 000000000000..e1eb540fd9d4
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/getopt.h
@@ -0,0 +1,57 @@
+/* Copyright (c) 2012, Kim Gräsman
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  * Neither the name of Kim Gräsman nor the names of contributors may be used
+ *    to endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL KIM GRÄSMAN BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef INCLUDED_GETOPT_PORT_H
+#define INCLUDED_GETOPT_PORT_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+extern const int no_argument;
+extern const int required_argument;
+extern const int optional_argument;
+
+extern char* optarg;
+extern int optind, opterr, optopt;
+
+struct option {
+  const char* name;
+  int has_arg;
+  int* flag;
+  int val;
+};
+
+int getopt(int argc, char* const argv[], const char* optstring);
+
+int getopt_long(int argc, char* const argv[],
+  const char* optstring, const struct option* longopts, int* longindex);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif // INCLUDED_GETOPT_PORT_H
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/linmath.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/linmath.h
new file mode 100644
index 000000000000..5c8026565383
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/linmath.h
@@ -0,0 +1,606 @@
+#ifndef LINMATH_H
+#define LINMATH_H
+
+#include <string.h>
+#include <math.h>
+#include <string.h>
+
+/* 2021-03-21 Camilla Löwy <elmindreda@elmindreda.org>
+ * - Replaced double constants with float equivalents
+ */
+
+#ifdef LINMATH_NO_INLINE
+#define LINMATH_H_FUNC static
+#else
+#define LINMATH_H_FUNC static inline
+#endif
+
+#define LINMATH_H_DEFINE_VEC(n) \
+typedef float vec##n[n]; \
+LINMATH_H_FUNC void vec##n##_add(vec##n r, vec##n const a, vec##n const b) \
+{ \
+	int i; \
+	for(i=0; i<n; ++i) \
+		r[i] = a[i] + b[i]; \
+} \
+LINMATH_H_FUNC void vec##n##_sub(vec##n r, vec##n const a, vec##n const b) \
+{ \
+	int i; \
+	for(i=0; i<n; ++i) \
+		r[i] = a[i] - b[i]; \
+} \
+LINMATH_H_FUNC void vec##n##_scale(vec##n r, vec##n const v, float const s) \
+{ \
+	int i; \
+	for(i=0; i<n; ++i) \
+		r[i] = v[i] * s; \
+} \
+LINMATH_H_FUNC float vec##n##_mul_inner(vec##n const a, vec##n const b) \
+{ \
+	float p = 0.f; \
+	int i; \
+	for(i=0; i<n; ++i) \
+		p += b[i]*a[i]; \
+	return p; \
+} \
+LINMATH_H_FUNC float vec##n##_len(vec##n const v) \
+{ \
+	return sqrtf(vec##n##_mul_inner(v,v)); \
+} \
+LINMATH_H_FUNC void vec##n##_norm(vec##n r, vec##n const v) \
+{ \
+	float k = 1.f / vec##n##_len(v); \
+	vec##n##_scale(r, v, k); \
+} \
+LINMATH_H_FUNC void vec##n##_min(vec##n r, vec##n const a, vec##n const b) \
+{ \
+	int i; \
+	for(i=0; i<n; ++i) \
+		r[i] = a[i]<b[i] ? a[i] : b[i]; \
+} \
+LINMATH_H_FUNC void vec##n##_max(vec##n r, vec##n const a, vec##n const b) \
+{ \
+	int i; \
+	for(i=0; i<n; ++i) \
+		r[i] = a[i]>b[i] ? a[i] : b[i]; \
+} \
+LINMATH_H_FUNC void vec##n##_dup(vec##n r, vec##n const src) \
+{ \
+	int i; \
+	for(i=0; i<n; ++i) \
+		r[i] = src[i]; \
+}
+
+LINMATH_H_DEFINE_VEC(2)
+LINMATH_H_DEFINE_VEC(3)
+LINMATH_H_DEFINE_VEC(4)
+
+LINMATH_H_FUNC void vec3_mul_cross(vec3 r, vec3 const a, vec3 const b)
+{
+	r[0] = a[1]*b[2] - a[2]*b[1];
+	r[1] = a[2]*b[0] - a[0]*b[2];
+	r[2] = a[0]*b[1] - a[1]*b[0];
+}
+
+LINMATH_H_FUNC void vec3_reflect(vec3 r, vec3 const v, vec3 const n)
+{
+	float p = 2.f * vec3_mul_inner(v, n);
+	int i;
+	for(i=0;i<3;++i)
+		r[i] = v[i] - p*n[i];
+}
+
+LINMATH_H_FUNC void vec4_mul_cross(vec4 r, vec4 const a, vec4 const b)
+{
+	r[0] = a[1]*b[2] - a[2]*b[1];
+	r[1] = a[2]*b[0] - a[0]*b[2];
+	r[2] = a[0]*b[1] - a[1]*b[0];
+	r[3] = 1.f;
+}
+
+LINMATH_H_FUNC void vec4_reflect(vec4 r, vec4 const v, vec4 const n)
+{
+	float p  = 2.f*vec4_mul_inner(v, n);
+	int i;
+	for(i=0;i<4;++i)
+		r[i] = v[i] - p*n[i];
+}
+
+typedef vec4 mat4x4[4];
+LINMATH_H_FUNC void mat4x4_identity(mat4x4 M)
+{
+	int i, j;
+	for(i=0; i<4; ++i)
+		for(j=0; j<4; ++j)
+			M[i][j] = i==j ? 1.f : 0.f;
+}
+LINMATH_H_FUNC void mat4x4_dup(mat4x4 M, mat4x4 const N)
+{
+	int i;
+	for(i=0; i<4; ++i)
+		vec4_dup(M[i], N[i]);
+}
+LINMATH_H_FUNC void mat4x4_row(vec4 r, mat4x4 const M, int i)
+{
+	int k;
+	for(k=0; k<4; ++k)
+		r[k] = M[k][i];
+}
+LINMATH_H_FUNC void mat4x4_col(vec4 r, mat4x4 const M, int i)
+{
+	int k;
+	for(k=0; k<4; ++k)
+		r[k] = M[i][k];
+}
+LINMATH_H_FUNC void mat4x4_transpose(mat4x4 M, mat4x4 const N)
+{
+    // Note: if M and N are the same, the user has to
+    // explicitly make a copy of M and set it to N.
+	int i, j;
+	for(j=0; j<4; ++j)
+		for(i=0; i<4; ++i)
+			M[i][j] = N[j][i];
+}
+LINMATH_H_FUNC void mat4x4_add(mat4x4 M, mat4x4 const a, mat4x4 const b)
+{
+	int i;
+	for(i=0; i<4; ++i)
+		vec4_add(M[i], a[i], b[i]);
+}
+LINMATH_H_FUNC void mat4x4_sub(mat4x4 M, mat4x4 const a, mat4x4 const b)
+{
+	int i;
+	for(i=0; i<4; ++i)
+		vec4_sub(M[i], a[i], b[i]);
+}
+LINMATH_H_FUNC void mat4x4_scale(mat4x4 M, mat4x4 const a, float k)
+{
+	int i;
+	for(i=0; i<4; ++i)
+		vec4_scale(M[i], a[i], k);
+}
+LINMATH_H_FUNC void mat4x4_scale_aniso(mat4x4 M, mat4x4 const a, float x, float y, float z)
+{
+	vec4_scale(M[0], a[0], x);
+	vec4_scale(M[1], a[1], y);
+	vec4_scale(M[2], a[2], z);
+	vec4_dup(M[3], a[3]);
+}
+LINMATH_H_FUNC void mat4x4_mul(mat4x4 M, mat4x4 const a, mat4x4 const b)
+{
+	mat4x4 temp;
+	int k, r, c;
+	for(c=0; c<4; ++c) for(r=0; r<4; ++r) {
+		temp[c][r] = 0.f;
+		for(k=0; k<4; ++k)
+			temp[c][r] += a[k][r] * b[c][k];
+	}
+	mat4x4_dup(M, temp);
+}
+LINMATH_H_FUNC void mat4x4_mul_vec4(vec4 r, mat4x4 const M, vec4 const v)
+{
+	int i, j;
+	for(j=0; j<4; ++j) {
+		r[j] = 0.f;
+		for(i=0; i<4; ++i)
+			r[j] += M[i][j] * v[i];
+	}
+}
+LINMATH_H_FUNC void mat4x4_translate(mat4x4 T, float x, float y, float z)
+{
+	mat4x4_identity(T);
+	T[3][0] = x;
+	T[3][1] = y;
+	T[3][2] = z;
+}
+LINMATH_H_FUNC void mat4x4_translate_in_place(mat4x4 M, float x, float y, float z)
+{
+	vec4 t = {x, y, z, 0};
+	vec4 r;
+	int i;
+	for (i = 0; i < 4; ++i) {
+		mat4x4_row(r, M, i);
+		M[3][i] += vec4_mul_inner(r, t);
+	}
+}
+LINMATH_H_FUNC void mat4x4_from_vec3_mul_outer(mat4x4 M, vec3 const a, vec3 const b)
+{
+	int i, j;
+	for(i=0; i<4; ++i) for(j=0; j<4; ++j)
+		M[i][j] = i<3 && j<3 ? a[i] * b[j] : 0.f;
+}
+LINMATH_H_FUNC void mat4x4_rotate(mat4x4 R, mat4x4 const M, float x, float y, float z, float angle)
+{
+	float s = sinf(angle);
+	float c = cosf(angle);
+	vec3 u = {x, y, z};
+
+	if(vec3_len(u) > 1e-4) {
+		vec3_norm(u, u);
+		mat4x4 T;
+		mat4x4_from_vec3_mul_outer(T, u, u);
+
+		mat4x4 S = {
+			{    0,  u[2], -u[1], 0},
+			{-u[2],     0,  u[0], 0},
+			{ u[1], -u[0],     0, 0},
+			{    0,     0,     0, 0}
+		};
+		mat4x4_scale(S, S, s);
+
+		mat4x4 C;
+		mat4x4_identity(C);
+		mat4x4_sub(C, C, T);
+
+		mat4x4_scale(C, C, c);
+
+		mat4x4_add(T, T, C);
+		mat4x4_add(T, T, S);
+
+		T[3][3] = 1.f;
+		mat4x4_mul(R, M, T);
+	} else {
+		mat4x4_dup(R, M);
+	}
+}
+LINMATH_H_FUNC void mat4x4_rotate_X(mat4x4 Q, mat4x4 const M, float angle)
+{
+	float s = sinf(angle);
+	float c = cosf(angle);
+	mat4x4 R = {
+		{1.f, 0.f, 0.f, 0.f},
+		{0.f,   c,   s, 0.f},
+		{0.f,  -s,   c, 0.f},
+		{0.f, 0.f, 0.f, 1.f}
+	};
+	mat4x4_mul(Q, M, R);
+}
+LINMATH_H_FUNC void mat4x4_rotate_Y(mat4x4 Q, mat4x4 const M, float angle)
+{
+	float s = sinf(angle);
+	float c = cosf(angle);
+	mat4x4 R = {
+		{   c, 0.f,  -s, 0.f},
+		{ 0.f, 1.f, 0.f, 0.f},
+		{   s, 0.f,   c, 0.f},
+		{ 0.f, 0.f, 0.f, 1.f}
+	};
+	mat4x4_mul(Q, M, R);
+}
+LINMATH_H_FUNC void mat4x4_rotate_Z(mat4x4 Q, mat4x4 const M, float angle)
+{
+	float s = sinf(angle);
+	float c = cosf(angle);
+	mat4x4 R = {
+		{   c,   s, 0.f, 0.f},
+		{  -s,   c, 0.f, 0.f},
+		{ 0.f, 0.f, 1.f, 0.f},
+		{ 0.f, 0.f, 0.f, 1.f}
+	};
+	mat4x4_mul(Q, M, R);
+}
+LINMATH_H_FUNC void mat4x4_invert(mat4x4 T, mat4x4 const M)
+{
+	float s[6];
+	float c[6];
+	s[0] = M[0][0]*M[1][1] - M[1][0]*M[0][1];
+	s[1] = M[0][0]*M[1][2] - M[1][0]*M[0][2];
+	s[2] = M[0][0]*M[1][3] - M[1][0]*M[0][3];
+	s[3] = M[0][1]*M[1][2] - M[1][1]*M[0][2];
+	s[4] = M[0][1]*M[1][3] - M[1][1]*M[0][3];
+	s[5] = M[0][2]*M[1][3] - M[1][2]*M[0][3];
+
+	c[0] = M[2][0]*M[3][1] - M[3][0]*M[2][1];
+	c[1] = M[2][0]*M[3][2] - M[3][0]*M[2][2];
+	c[2] = M[2][0]*M[3][3] - M[3][0]*M[2][3];
+	c[3] = M[2][1]*M[3][2] - M[3][1]*M[2][2];
+	c[4] = M[2][1]*M[3][3] - M[3][1]*M[2][3];
+	c[5] = M[2][2]*M[3][3] - M[3][2]*M[2][3];
+	
+	/* Assumes it is invertible */
+	float idet = 1.0f/( s[0]*c[5]-s[1]*c[4]+s[2]*c[3]+s[3]*c[2]-s[4]*c[1]+s[5]*c[0] );
+	
+	T[0][0] = ( M[1][1] * c[5] - M[1][2] * c[4] + M[1][3] * c[3]) * idet;
+	T[0][1] = (-M[0][1] * c[5] + M[0][2] * c[4] - M[0][3] * c[3]) * idet;
+	T[0][2] = ( M[3][1] * s[5] - M[3][2] * s[4] + M[3][3] * s[3]) * idet;
+	T[0][3] = (-M[2][1] * s[5] + M[2][2] * s[4] - M[2][3] * s[3]) * idet;
+
+	T[1][0] = (-M[1][0] * c[5] + M[1][2] * c[2] - M[1][3] * c[1]) * idet;
+	T[1][1] = ( M[0][0] * c[5] - M[0][2] * c[2] + M[0][3] * c[1]) * idet;
+	T[1][2] = (-M[3][0] * s[5] + M[3][2] * s[2] - M[3][3] * s[1]) * idet;
+	T[1][3] = ( M[2][0] * s[5] - M[2][2] * s[2] + M[2][3] * s[1]) * idet;
+
+	T[2][0] = ( M[1][0] * c[4] - M[1][1] * c[2] + M[1][3] * c[0]) * idet;
+	T[2][1] = (-M[0][0] * c[4] + M[0][1] * c[2] - M[0][3] * c[0]) * idet;
+	T[2][2] = ( M[3][0] * s[4] - M[3][1] * s[2] + M[3][3] * s[0]) * idet;
+	T[2][3] = (-M[2][0] * s[4] + M[2][1] * s[2] - M[2][3] * s[0]) * idet;
+
+	T[3][0] = (-M[1][0] * c[3] + M[1][1] * c[1] - M[1][2] * c[0]) * idet;
+	T[3][1] = ( M[0][0] * c[3] - M[0][1] * c[1] + M[0][2] * c[0]) * idet;
+	T[3][2] = (-M[3][0] * s[3] + M[3][1] * s[1] - M[3][2] * s[0]) * idet;
+	T[3][3] = ( M[2][0] * s[3] - M[2][1] * s[1] + M[2][2] * s[0]) * idet;
+}
+LINMATH_H_FUNC void mat4x4_orthonormalize(mat4x4 R, mat4x4 const M)
+{
+	mat4x4_dup(R, M);
+	float s = 1.f;
+	vec3 h;
+
+	vec3_norm(R[2], R[2]);
+	
+	s = vec3_mul_inner(R[1], R[2]);
+	vec3_scale(h, R[2], s);
+	vec3_sub(R[1], R[1], h);
+	vec3_norm(R[1], R[1]);
+
+	s = vec3_mul_inner(R[0], R[2]);
+	vec3_scale(h, R[2], s);
+	vec3_sub(R[0], R[0], h);
+
+	s = vec3_mul_inner(R[0], R[1]);
+	vec3_scale(h, R[1], s);
+	vec3_sub(R[0], R[0], h);
+	vec3_norm(R[0], R[0]);
+}
+
+LINMATH_H_FUNC void mat4x4_frustum(mat4x4 M, float l, float r, float b, float t, float n, float f)
+{
+	M[0][0] = 2.f*n/(r-l);
+	M[0][1] = M[0][2] = M[0][3] = 0.f;
+	
+	M[1][1] = 2.f*n/(t-b);
+	M[1][0] = M[1][2] = M[1][3] = 0.f;
+
+	M[2][0] = (r+l)/(r-l);
+	M[2][1] = (t+b)/(t-b);
+	M[2][2] = -(f+n)/(f-n);
+	M[2][3] = -1.f;
+	
+	M[3][2] = -2.f*(f*n)/(f-n);
+	M[3][0] = M[3][1] = M[3][3] = 0.f;
+}
+LINMATH_H_FUNC void mat4x4_ortho(mat4x4 M, float l, float r, float b, float t, float n, float f)
+{
+	M[0][0] = 2.f/(r-l);
+	M[0][1] = M[0][2] = M[0][3] = 0.f;
+
+	M[1][1] = 2.f/(t-b);
+	M[1][0] = M[1][2] = M[1][3] = 0.f;
+
+	M[2][2] = -2.f/(f-n);
+	M[2][0] = M[2][1] = M[2][3] = 0.f;
+	
+	M[3][0] = -(r+l)/(r-l);
+	M[3][1] = -(t+b)/(t-b);
+	M[3][2] = -(f+n)/(f-n);
+	M[3][3] = 1.f;
+}
+LINMATH_H_FUNC void mat4x4_perspective(mat4x4 m, float y_fov, float aspect, float n, float f)
+{
+	/* NOTE: Degrees are an unhandy unit to work with.
+	 * linmath.h uses radians for everything! */
+	float const a = 1.f / tanf(y_fov / 2.f);
+
+	m[0][0] = a / aspect;
+	m[0][1] = 0.f;
+	m[0][2] = 0.f;
+	m[0][3] = 0.f;
+
+	m[1][0] = 0.f;
+	m[1][1] = a;
+	m[1][2] = 0.f;
+	m[1][3] = 0.f;
+
+	m[2][0] = 0.f;
+	m[2][1] = 0.f;
+	m[2][2] = -((f + n) / (f - n));
+	m[2][3] = -1.f;
+
+	m[3][0] = 0.f;
+	m[3][1] = 0.f;
+	m[3][2] = -((2.f * f * n) / (f - n));
+	m[3][3] = 0.f;
+}
+LINMATH_H_FUNC void mat4x4_look_at(mat4x4 m, vec3 const eye, vec3 const center, vec3 const up)
+{
+	/* Adapted from Android's OpenGL Matrix.java.                        */
+	/* See the OpenGL GLUT documentation for gluLookAt for a description */
+	/* of the algorithm. We implement it in a straightforward way:       */
+
+	/* TODO: The negation of of can be spared by swapping the order of
+	 *       operands in the following cross products in the right way. */
+	vec3 f;
+	vec3_sub(f, center, eye);	
+	vec3_norm(f, f);	
+	
+	vec3 s;
+	vec3_mul_cross(s, f, up);
+	vec3_norm(s, s);
+
+	vec3 t;
+	vec3_mul_cross(t, s, f);
+
+	m[0][0] =  s[0];
+	m[0][1] =  t[0];
+	m[0][2] = -f[0];
+	m[0][3] =   0.f;
+
+	m[1][0] =  s[1];
+	m[1][1] =  t[1];
+	m[1][2] = -f[1];
+	m[1][3] =   0.f;
+
+	m[2][0] =  s[2];
+	m[2][1] =  t[2];
+	m[2][2] = -f[2];
+	m[2][3] =   0.f;
+
+	m[3][0] =  0.f;
+	m[3][1] =  0.f;
+	m[3][2] =  0.f;
+	m[3][3] =  1.f;
+
+	mat4x4_translate_in_place(m, -eye[0], -eye[1], -eye[2]);
+}
+
+typedef float quat[4];
+#define quat_add vec4_add
+#define quat_sub vec4_sub
+#define quat_norm vec4_norm
+#define quat_scale vec4_scale
+#define quat_mul_inner vec4_mul_inner
+
+LINMATH_H_FUNC void quat_identity(quat q)
+{
+	q[0] = q[1] = q[2] = 0.f;
+	q[3] = 1.f;
+}
+LINMATH_H_FUNC void quat_mul(quat r, quat const p, quat const q)
+{
+	vec3 w;
+	vec3_mul_cross(r, p, q);
+	vec3_scale(w, p, q[3]);
+	vec3_add(r, r, w);
+	vec3_scale(w, q, p[3]);
+	vec3_add(r, r, w);
+	r[3] = p[3]*q[3] - vec3_mul_inner(p, q);
+}
+LINMATH_H_FUNC void quat_conj(quat r, quat const q)
+{
+	int i;
+	for(i=0; i<3; ++i)
+		r[i] = -q[i];
+	r[3] = q[3];
+}
+LINMATH_H_FUNC void quat_rotate(quat r, float angle, vec3 const axis) {
+    vec3 axis_norm;
+    vec3_norm(axis_norm, axis);
+    float s = sinf(angle / 2);
+    float c = cosf(angle / 2);
+    vec3_scale(r, axis_norm, s);
+    r[3] = c;
+}
+LINMATH_H_FUNC void quat_mul_vec3(vec3 r, quat const q, vec3 const v)
+{
+/*
+ * Method by Fabian 'ryg' Giessen (of Farbrausch)
+t = 2 * cross(q.xyz, v)
+v' = v + q.w * t + cross(q.xyz, t)
+ */
+	vec3 t;
+	vec3 q_xyz = {q[0], q[1], q[2]};
+	vec3 u = {q[0], q[1], q[2]};
+
+	vec3_mul_cross(t, q_xyz, v);
+	vec3_scale(t, t, 2);
+
+	vec3_mul_cross(u, q_xyz, t);
+	vec3_scale(t, t, q[3]);
+
+	vec3_add(r, v, t);
+	vec3_add(r, r, u);
+}
+LINMATH_H_FUNC void mat4x4_from_quat(mat4x4 M, quat const q)
+{
+	float a = q[3];
+	float b = q[0];
+	float c = q[1];
+	float d = q[2];
+	float a2 = a*a;
+	float b2 = b*b;
+	float c2 = c*c;
+	float d2 = d*d;
+	
+	M[0][0] = a2 + b2 - c2 - d2;
+	M[0][1] = 2.f*(b*c + a*d);
+	M[0][2] = 2.f*(b*d - a*c);
+	M[0][3] = 0.f;
+
+	M[1][0] = 2*(b*c - a*d);
+	M[1][1] = a2 - b2 + c2 - d2;
+	M[1][2] = 2.f*(c*d + a*b);
+	M[1][3] = 0.f;
+
+	M[2][0] = 2.f*(b*d + a*c);
+	M[2][1] = 2.f*(c*d - a*b);
+	M[2][2] = a2 - b2 - c2 + d2;
+	M[2][3] = 0.f;
+
+	M[3][0] = M[3][1] = M[3][2] = 0.f;
+	M[3][3] = 1.f;
+}
+
+LINMATH_H_FUNC void mat4x4o_mul_quat(mat4x4 R, mat4x4 const M, quat const q)
+{
+/*  XXX: The way this is written only works for orthogonal matrices. */
+/* TODO: Take care of non-orthogonal case. */
+	quat_mul_vec3(R[0], q, M[0]);
+	quat_mul_vec3(R[1], q, M[1]);
+	quat_mul_vec3(R[2], q, M[2]);
+
+	R[3][0] = R[3][1] = R[3][2] = 0.f;
+	R[0][3] = M[0][3];
+	R[1][3] = M[1][3];
+	R[2][3] = M[2][3];
+	R[3][3] = M[3][3];  // typically 1.0, but here we make it general
+}
+LINMATH_H_FUNC void quat_from_mat4x4(quat q, mat4x4 const M)
+{
+	float r=0.f;
+	int i;
+
+	int perm[] = { 0, 1, 2, 0, 1 };
+	int *p = perm;
+
+	for(i = 0; i<3; i++) {
+		float m = M[i][i];
+		if( m < r )
+			continue;
+		m = r;
+		p = &perm[i];
+	}
+
+	r = sqrtf(1.f + M[p[0]][p[0]] - M[p[1]][p[1]] - M[p[2]][p[2]] );
+
+	if(r < 1e-6) {
+		q[0] = 1.f;
+		q[1] = q[2] = q[3] = 0.f;
+		return;
+	}
+
+	q[0] = r/2.f;
+	q[1] = (M[p[0]][p[1]] - M[p[1]][p[0]])/(2.f*r);
+	q[2] = (M[p[2]][p[0]] - M[p[0]][p[2]])/(2.f*r);
+	q[3] = (M[p[2]][p[1]] - M[p[1]][p[2]])/(2.f*r);
+}
+
+LINMATH_H_FUNC void mat4x4_arcball(mat4x4 R, mat4x4 const M, vec2 const _a, vec2 const _b, float s)
+{
+	vec2 a; memcpy(a, _a, sizeof(a));
+	vec2 b; memcpy(b, _b, sizeof(b));
+	
+	float z_a = 0.f;
+	float z_b = 0.f;
+
+	if(vec2_len(a) < 1.f) {
+		z_a = sqrtf(1.f - vec2_mul_inner(a, a));
+	} else {
+		vec2_norm(a, a);
+	}
+
+	if(vec2_len(b) < 1.f) {
+		z_b = sqrtf(1.f - vec2_mul_inner(b, b));
+	} else {
+		vec2_norm(b, b);
+	}
+	
+	vec3 a_ = {a[0], a[1], z_a};
+	vec3 b_ = {b[0], b[1], z_b};
+
+	vec3 c_;
+	vec3_mul_cross(c_, a_, b_);
+
+	float const angle = acos(vec3_mul_inner(a_, b_)) * s;
+	mat4x4_rotate(R, M, c_[0], c_[1], c_[2], angle);
+}
+#endif
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/mingw/_mingw_dxhelper.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/mingw/_mingw_dxhelper.h
new file mode 100644
index 000000000000..849e2914649b
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/mingw/_mingw_dxhelper.h
@@ -0,0 +1,117 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the mingw-w64 runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within this package.
+ */
+
+#if defined(_MSC_VER) && !defined(_MSC_EXTENSIONS)
+#define NONAMELESSUNION		1
+#endif
+#if defined(NONAMELESSSTRUCT) && \
+   !defined(NONAMELESSUNION)
+#define NONAMELESSUNION		1
+#endif
+#if defined(NONAMELESSUNION)  && \
+   !defined(NONAMELESSSTRUCT)
+#define NONAMELESSSTRUCT	1
+#endif
+#if !defined(__GNU_EXTENSION)
+#if defined(__GNUC__) || defined(__GNUG__)
+#define __GNU_EXTENSION		__extension__
+#else
+#define __GNU_EXTENSION
+#endif
+#endif /* __extension__ */
+
+#ifndef __ANONYMOUS_DEFINED
+#define __ANONYMOUS_DEFINED
+#if defined(__GNUC__) || defined(__GNUG__)
+#define _ANONYMOUS_UNION	__extension__
+#define _ANONYMOUS_STRUCT	__extension__
+#else
+#define _ANONYMOUS_UNION
+#define _ANONYMOUS_STRUCT
+#endif
+#ifndef NONAMELESSUNION
+#define _UNION_NAME(x)
+#define _STRUCT_NAME(x)
+#else /* NONAMELESSUNION */
+#define _UNION_NAME(x)  x
+#define _STRUCT_NAME(x) x
+#endif
+#endif	/* __ANONYMOUS_DEFINED */
+
+#ifndef DUMMYUNIONNAME
+# ifdef NONAMELESSUNION
+#  define DUMMYUNIONNAME  u
+#  define DUMMYUNIONNAME1 u1	/* Wine uses this variant */
+#  define DUMMYUNIONNAME2 u2
+#  define DUMMYUNIONNAME3 u3
+#  define DUMMYUNIONNAME4 u4
+#  define DUMMYUNIONNAME5 u5
+#  define DUMMYUNIONNAME6 u6
+#  define DUMMYUNIONNAME7 u7
+#  define DUMMYUNIONNAME8 u8
+#  define DUMMYUNIONNAME9 u9
+# else /* NONAMELESSUNION */
+#  define DUMMYUNIONNAME
+#  define DUMMYUNIONNAME1	/* Wine uses this variant */
+#  define DUMMYUNIONNAME2
+#  define DUMMYUNIONNAME3
+#  define DUMMYUNIONNAME4
+#  define DUMMYUNIONNAME5
+#  define DUMMYUNIONNAME6
+#  define DUMMYUNIONNAME7
+#  define DUMMYUNIONNAME8
+#  define DUMMYUNIONNAME9
+# endif
+#endif	/* DUMMYUNIONNAME */
+
+#if !defined(DUMMYUNIONNAME1)	/* MinGW does not define this one */
+# ifdef NONAMELESSUNION
+#  define DUMMYUNIONNAME1 u1	/* Wine uses this variant */
+# else
+#  define DUMMYUNIONNAME1	/* Wine uses this variant */
+# endif
+#endif	/* DUMMYUNIONNAME1 */
+
+#ifndef DUMMYSTRUCTNAME
+# ifdef NONAMELESSUNION
+#  define DUMMYSTRUCTNAME  s
+#  define DUMMYSTRUCTNAME1 s1	/* Wine uses this variant */
+#  define DUMMYSTRUCTNAME2 s2
+#  define DUMMYSTRUCTNAME3 s3
+#  define DUMMYSTRUCTNAME4 s4
+#  define DUMMYSTRUCTNAME5 s5
+# else
+#  define DUMMYSTRUCTNAME
+#  define DUMMYSTRUCTNAME1	/* Wine uses this variant */
+#  define DUMMYSTRUCTNAME2
+#  define DUMMYSTRUCTNAME3
+#  define DUMMYSTRUCTNAME4
+#  define DUMMYSTRUCTNAME5
+# endif
+#endif /* DUMMYSTRUCTNAME */
+
+/* These are for compatibility with the Wine source tree */
+
+#ifndef WINELIB_NAME_AW
+# ifdef __MINGW_NAME_AW
+#   define WINELIB_NAME_AW  __MINGW_NAME_AW
+# else
+#  ifdef UNICODE
+#   define WINELIB_NAME_AW(func) func##W
+#  else
+#   define WINELIB_NAME_AW(func) func##A
+#  endif
+# endif
+#endif	/* WINELIB_NAME_AW */
+
+#ifndef DECL_WINELIB_TYPE_AW
+# ifdef __MINGW_TYPEDEF_AW
+#  define DECL_WINELIB_TYPE_AW  __MINGW_TYPEDEF_AW
+# else
+#  define DECL_WINELIB_TYPE_AW(type)  typedef WINELIB_NAME_AW(type) type;
+# endif
+#endif	/* DECL_WINELIB_TYPE_AW */
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/mingw/dinput.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/mingw/dinput.h
new file mode 100644
index 000000000000..b5754802be72
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/mingw/dinput.h
@@ -0,0 +1,2467 @@
+/*
+ * Copyright (C) the Wine project
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef __DINPUT_INCLUDED__
+#define __DINPUT_INCLUDED__
+
+#define COM_NO_WINDOWS_H
+#include <objbase.h>
+#include <_mingw_dxhelper.h>
+
+#ifndef DIRECTINPUT_VERSION
+#define DIRECTINPUT_VERSION	0x0800
+#endif
+
+/* Classes */
+DEFINE_GUID(CLSID_DirectInput,		0x25E609E0,0xB259,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(CLSID_DirectInputDevice,	0x25E609E1,0xB259,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+
+DEFINE_GUID(CLSID_DirectInput8,		0x25E609E4,0xB259,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(CLSID_DirectInputDevice8,	0x25E609E5,0xB259,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+
+/* Interfaces */
+DEFINE_GUID(IID_IDirectInputA,		0x89521360,0xAA8A,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(IID_IDirectInputW,		0x89521361,0xAA8A,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(IID_IDirectInput2A,		0x5944E662,0xAA8A,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(IID_IDirectInput2W,		0x5944E663,0xAA8A,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(IID_IDirectInput7A,		0x9A4CB684,0x236D,0x11D3,0x8E,0x9D,0x00,0xC0,0x4F,0x68,0x44,0xAE);
+DEFINE_GUID(IID_IDirectInput7W,		0x9A4CB685,0x236D,0x11D3,0x8E,0x9D,0x00,0xC0,0x4F,0x68,0x44,0xAE);
+DEFINE_GUID(IID_IDirectInput8A,		0xBF798030,0x483A,0x4DA2,0xAA,0x99,0x5D,0x64,0xED,0x36,0x97,0x00);
+DEFINE_GUID(IID_IDirectInput8W,		0xBF798031,0x483A,0x4DA2,0xAA,0x99,0x5D,0x64,0xED,0x36,0x97,0x00);
+DEFINE_GUID(IID_IDirectInputDeviceA,	0x5944E680,0xC92E,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(IID_IDirectInputDeviceW,	0x5944E681,0xC92E,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(IID_IDirectInputDevice2A,	0x5944E682,0xC92E,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(IID_IDirectInputDevice2W,	0x5944E683,0xC92E,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(IID_IDirectInputDevice7A,	0x57D7C6BC,0x2356,0x11D3,0x8E,0x9D,0x00,0xC0,0x4F,0x68,0x44,0xAE);
+DEFINE_GUID(IID_IDirectInputDevice7W,	0x57D7C6BD,0x2356,0x11D3,0x8E,0x9D,0x00,0xC0,0x4F,0x68,0x44,0xAE);
+DEFINE_GUID(IID_IDirectInputDevice8A,	0x54D41080,0xDC15,0x4833,0xA4,0x1B,0x74,0x8F,0x73,0xA3,0x81,0x79);
+DEFINE_GUID(IID_IDirectInputDevice8W,	0x54D41081,0xDC15,0x4833,0xA4,0x1B,0x74,0x8F,0x73,0xA3,0x81,0x79);
+DEFINE_GUID(IID_IDirectInputEffect,	0xE7E1F7C0,0x88D2,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+
+/* Predefined object types */
+DEFINE_GUID(GUID_XAxis,	0xA36D02E0,0xC9F3,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_YAxis,	0xA36D02E1,0xC9F3,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_ZAxis,	0xA36D02E2,0xC9F3,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_RxAxis,0xA36D02F4,0xC9F3,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_RyAxis,0xA36D02F5,0xC9F3,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_RzAxis,0xA36D02E3,0xC9F3,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_Slider,0xA36D02E4,0xC9F3,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_Button,0xA36D02F0,0xC9F3,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_Key,	0x55728220,0xD33C,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_POV,	0xA36D02F2,0xC9F3,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_Unknown,0xA36D02F3,0xC9F3,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+
+/* Predefined product GUIDs */
+DEFINE_GUID(GUID_SysMouse,	0x6F1D2B60,0xD5A0,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_SysKeyboard,	0x6F1D2B61,0xD5A0,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_Joystick,	0x6F1D2B70,0xD5A0,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_SysMouseEm,	0x6F1D2B80,0xD5A0,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_SysMouseEm2,	0x6F1D2B81,0xD5A0,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_SysKeyboardEm,	0x6F1D2B82,0xD5A0,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+DEFINE_GUID(GUID_SysKeyboardEm2,0x6F1D2B83,0xD5A0,0x11CF,0xBF,0xC7,0x44,0x45,0x53,0x54,0x00,0x00);
+
+/* predefined forcefeedback effects */
+DEFINE_GUID(GUID_ConstantForce,	0x13541C20,0x8E33,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+DEFINE_GUID(GUID_RampForce,	0x13541C21,0x8E33,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+DEFINE_GUID(GUID_Square,	0x13541C22,0x8E33,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+DEFINE_GUID(GUID_Sine,		0x13541C23,0x8E33,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+DEFINE_GUID(GUID_Triangle,	0x13541C24,0x8E33,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+DEFINE_GUID(GUID_SawtoothUp,	0x13541C25,0x8E33,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+DEFINE_GUID(GUID_SawtoothDown,	0x13541C26,0x8E33,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+DEFINE_GUID(GUID_Spring,	0x13541C27,0x8E33,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+DEFINE_GUID(GUID_Damper,	0x13541C28,0x8E33,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+DEFINE_GUID(GUID_Inertia,	0x13541C29,0x8E33,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+DEFINE_GUID(GUID_Friction,	0x13541C2A,0x8E33,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+DEFINE_GUID(GUID_CustomForce,	0x13541C2B,0x8E33,0x11D0,0x9A,0xD0,0x00,0xA0,0xC9,0xA0,0x6E,0x35);
+
+typedef struct IDirectInputA *LPDIRECTINPUTA;
+typedef struct IDirectInputW *LPDIRECTINPUTW;
+typedef struct IDirectInput2A *LPDIRECTINPUT2A;
+typedef struct IDirectInput2W *LPDIRECTINPUT2W;
+typedef struct IDirectInput7A *LPDIRECTINPUT7A;
+typedef struct IDirectInput7W *LPDIRECTINPUT7W;
+#if DIRECTINPUT_VERSION >= 0x0800
+typedef struct IDirectInput8A *LPDIRECTINPUT8A;
+typedef struct IDirectInput8W *LPDIRECTINPUT8W;
+#endif /* DI8 */
+typedef struct IDirectInputDeviceA *LPDIRECTINPUTDEVICEA;
+typedef struct IDirectInputDeviceW *LPDIRECTINPUTDEVICEW;
+#if DIRECTINPUT_VERSION >= 0x0500
+typedef struct IDirectInputDevice2A *LPDIRECTINPUTDEVICE2A;
+typedef struct IDirectInputDevice2W *LPDIRECTINPUTDEVICE2W;
+#endif /* DI5 */
+#if DIRECTINPUT_VERSION >= 0x0700
+typedef struct IDirectInputDevice7A *LPDIRECTINPUTDEVICE7A;
+typedef struct IDirectInputDevice7W *LPDIRECTINPUTDEVICE7W;
+#endif /* DI7 */
+#if DIRECTINPUT_VERSION >= 0x0800
+typedef struct IDirectInputDevice8A *LPDIRECTINPUTDEVICE8A;
+typedef struct IDirectInputDevice8W *LPDIRECTINPUTDEVICE8W;
+#endif /* DI8 */
+#if DIRECTINPUT_VERSION >= 0x0500
+typedef struct IDirectInputEffect *LPDIRECTINPUTEFFECT;
+#endif /* DI5 */
+typedef struct SysKeyboardA *LPSYSKEYBOARDA;
+typedef struct SysMouseA *LPSYSMOUSEA;
+
+#define IID_IDirectInput WINELIB_NAME_AW(IID_IDirectInput)
+#define IDirectInput WINELIB_NAME_AW(IDirectInput)
+DECL_WINELIB_TYPE_AW(LPDIRECTINPUT)
+#define IID_IDirectInput2 WINELIB_NAME_AW(IID_IDirectInput2)
+#define IDirectInput2 WINELIB_NAME_AW(IDirectInput2)
+DECL_WINELIB_TYPE_AW(LPDIRECTINPUT2)
+#define IID_IDirectInput7 WINELIB_NAME_AW(IID_IDirectInput7)
+#define IDirectInput7 WINELIB_NAME_AW(IDirectInput7)
+DECL_WINELIB_TYPE_AW(LPDIRECTINPUT7)
+#if DIRECTINPUT_VERSION >= 0x0800
+#define IID_IDirectInput8 WINELIB_NAME_AW(IID_IDirectInput8)
+#define IDirectInput8 WINELIB_NAME_AW(IDirectInput8)
+DECL_WINELIB_TYPE_AW(LPDIRECTINPUT8)
+#endif /* DI8 */
+#define IID_IDirectInputDevice WINELIB_NAME_AW(IID_IDirectInputDevice)
+#define IDirectInputDevice WINELIB_NAME_AW(IDirectInputDevice)
+DECL_WINELIB_TYPE_AW(LPDIRECTINPUTDEVICE)
+#if DIRECTINPUT_VERSION >= 0x0500
+#define IID_IDirectInputDevice2 WINELIB_NAME_AW(IID_IDirectInputDevice2)
+#define IDirectInputDevice2 WINELIB_NAME_AW(IDirectInputDevice2)
+DECL_WINELIB_TYPE_AW(LPDIRECTINPUTDEVICE2)
+#endif /* DI5 */
+#if DIRECTINPUT_VERSION >= 0x0700
+#define IID_IDirectInputDevice7 WINELIB_NAME_AW(IID_IDirectInputDevice7)
+#define IDirectInputDevice7 WINELIB_NAME_AW(IDirectInputDevice7)
+DECL_WINELIB_TYPE_AW(LPDIRECTINPUTDEVICE7)
+#endif /* DI7 */
+#if DIRECTINPUT_VERSION >= 0x0800
+#define IID_IDirectInputDevice8 WINELIB_NAME_AW(IID_IDirectInputDevice8)
+#define IDirectInputDevice8 WINELIB_NAME_AW(IDirectInputDevice8)
+DECL_WINELIB_TYPE_AW(LPDIRECTINPUTDEVICE8)
+#endif /* DI8 */
+
+#define DI_OK                           S_OK
+#define DI_NOTATTACHED                  S_FALSE
+#define DI_BUFFEROVERFLOW               S_FALSE
+#define DI_PROPNOEFFECT                 S_FALSE
+#define DI_NOEFFECT                     S_FALSE
+#define DI_POLLEDDEVICE                 ((HRESULT)0x00000002L)
+#define DI_DOWNLOADSKIPPED              ((HRESULT)0x00000003L)
+#define DI_EFFECTRESTARTED              ((HRESULT)0x00000004L)
+#define DI_TRUNCATED                    ((HRESULT)0x00000008L)
+#define DI_SETTINGSNOTSAVED             ((HRESULT)0x0000000BL)
+#define DI_TRUNCATEDANDRESTARTED        ((HRESULT)0x0000000CL)
+#define DI_WRITEPROTECT                 ((HRESULT)0x00000013L)
+
+#define DIERR_OLDDIRECTINPUTVERSION     \
+    MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, ERROR_OLD_WIN_VERSION)
+#define DIERR_BETADIRECTINPUTVERSION    \
+    MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, ERROR_RMODE_APP)
+#define DIERR_BADDRIVERVER              \
+    MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, ERROR_BAD_DRIVER_LEVEL)
+#define DIERR_DEVICENOTREG              REGDB_E_CLASSNOTREG
+#define DIERR_NOTFOUND                  \
+    MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, ERROR_FILE_NOT_FOUND)
+#define DIERR_OBJECTNOTFOUND            \
+    MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, ERROR_FILE_NOT_FOUND)
+#define DIERR_INVALIDPARAM              E_INVALIDARG
+#define DIERR_NOINTERFACE               E_NOINTERFACE
+#define DIERR_GENERIC                   E_FAIL
+#define DIERR_OUTOFMEMORY               E_OUTOFMEMORY
+#define DIERR_UNSUPPORTED               E_NOTIMPL
+#define DIERR_NOTINITIALIZED            \
+    MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, ERROR_NOT_READY)
+#define DIERR_ALREADYINITIALIZED        \
+    MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, ERROR_ALREADY_INITIALIZED)
+#define DIERR_NOAGGREGATION             CLASS_E_NOAGGREGATION
+#define DIERR_OTHERAPPHASPRIO           E_ACCESSDENIED
+#define DIERR_INPUTLOST                 \
+    MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, ERROR_READ_FAULT)
+#define DIERR_ACQUIRED                  \
+    MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, ERROR_BUSY)
+#define DIERR_NOTACQUIRED               \
+    MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, ERROR_INVALID_ACCESS)
+#define DIERR_READONLY                  E_ACCESSDENIED
+#define DIERR_HANDLEEXISTS              E_ACCESSDENIED
+#ifndef E_PENDING
+#define E_PENDING                       0x8000000AL
+#endif
+#define DIERR_INSUFFICIENTPRIVS         0x80040200L
+#define DIERR_DEVICEFULL                0x80040201L
+#define DIERR_MOREDATA                  0x80040202L
+#define DIERR_NOTDOWNLOADED             0x80040203L
+#define DIERR_HASEFFECTS                0x80040204L
+#define DIERR_NOTEXCLUSIVEACQUIRED      0x80040205L
+#define DIERR_INCOMPLETEEFFECT          0x80040206L
+#define DIERR_NOTBUFFERED               0x80040207L
+#define DIERR_EFFECTPLAYING             0x80040208L
+#define DIERR_UNPLUGGED                 0x80040209L
+#define DIERR_REPORTFULL                0x8004020AL
+#define DIERR_MAPFILEFAIL               0x8004020BL
+
+#define DIENUM_STOP                     0
+#define DIENUM_CONTINUE                 1
+
+#define DIEDFL_ALLDEVICES               0x00000000
+#define DIEDFL_ATTACHEDONLY             0x00000001
+#define DIEDFL_FORCEFEEDBACK            0x00000100
+#define DIEDFL_INCLUDEALIASES           0x00010000
+#define DIEDFL_INCLUDEPHANTOMS          0x00020000
+#define DIEDFL_INCLUDEHIDDEN		0x00040000
+
+#define DIDEVTYPE_DEVICE                1
+#define DIDEVTYPE_MOUSE                 2
+#define DIDEVTYPE_KEYBOARD              3
+#define DIDEVTYPE_JOYSTICK              4
+#define DIDEVTYPE_HID                   0x00010000
+
+#define DI8DEVCLASS_ALL             0
+#define DI8DEVCLASS_DEVICE          1
+#define DI8DEVCLASS_POINTER         2
+#define DI8DEVCLASS_KEYBOARD        3
+#define DI8DEVCLASS_GAMECTRL        4
+
+#define DI8DEVTYPE_DEVICE           0x11
+#define DI8DEVTYPE_MOUSE            0x12
+#define DI8DEVTYPE_KEYBOARD         0x13
+#define DI8DEVTYPE_JOYSTICK         0x14
+#define DI8DEVTYPE_GAMEPAD          0x15
+#define DI8DEVTYPE_DRIVING          0x16
+#define DI8DEVTYPE_FLIGHT           0x17
+#define DI8DEVTYPE_1STPERSON        0x18
+#define DI8DEVTYPE_DEVICECTRL       0x19
+#define DI8DEVTYPE_SCREENPOINTER    0x1A
+#define DI8DEVTYPE_REMOTE           0x1B
+#define DI8DEVTYPE_SUPPLEMENTAL     0x1C
+	
+#define DIDEVTYPEMOUSE_UNKNOWN          1
+#define DIDEVTYPEMOUSE_TRADITIONAL      2
+#define DIDEVTYPEMOUSE_FINGERSTICK      3
+#define DIDEVTYPEMOUSE_TOUCHPAD         4
+#define DIDEVTYPEMOUSE_TRACKBALL        5
+
+#define DIDEVTYPEKEYBOARD_UNKNOWN       0
+#define DIDEVTYPEKEYBOARD_PCXT          1
+#define DIDEVTYPEKEYBOARD_OLIVETTI      2
+#define DIDEVTYPEKEYBOARD_PCAT          3
+#define DIDEVTYPEKEYBOARD_PCENH         4
+#define DIDEVTYPEKEYBOARD_NOKIA1050     5
+#define DIDEVTYPEKEYBOARD_NOKIA9140     6
+#define DIDEVTYPEKEYBOARD_NEC98         7
+#define DIDEVTYPEKEYBOARD_NEC98LAPTOP   8
+#define DIDEVTYPEKEYBOARD_NEC98106      9
+#define DIDEVTYPEKEYBOARD_JAPAN106     10
+#define DIDEVTYPEKEYBOARD_JAPANAX      11
+#define DIDEVTYPEKEYBOARD_J3100        12
+
+#define DIDEVTYPEJOYSTICK_UNKNOWN       1
+#define DIDEVTYPEJOYSTICK_TRADITIONAL   2
+#define DIDEVTYPEJOYSTICK_FLIGHTSTICK   3
+#define DIDEVTYPEJOYSTICK_GAMEPAD       4
+#define DIDEVTYPEJOYSTICK_RUDDER        5
+#define DIDEVTYPEJOYSTICK_WHEEL         6
+#define DIDEVTYPEJOYSTICK_HEADTRACKER   7
+
+#define DI8DEVTYPEMOUSE_UNKNOWN                     1
+#define DI8DEVTYPEMOUSE_TRADITIONAL                 2
+#define DI8DEVTYPEMOUSE_FINGERSTICK                 3
+#define DI8DEVTYPEMOUSE_TOUCHPAD                    4
+#define DI8DEVTYPEMOUSE_TRACKBALL                   5
+#define DI8DEVTYPEMOUSE_ABSOLUTE                    6
+
+#define DI8DEVTYPEKEYBOARD_UNKNOWN                  0
+#define DI8DEVTYPEKEYBOARD_PCXT                     1
+#define DI8DEVTYPEKEYBOARD_OLIVETTI                 2
+#define DI8DEVTYPEKEYBOARD_PCAT                     3
+#define DI8DEVTYPEKEYBOARD_PCENH                    4
+#define DI8DEVTYPEKEYBOARD_NOKIA1050                5
+#define DI8DEVTYPEKEYBOARD_NOKIA9140                6
+#define DI8DEVTYPEKEYBOARD_NEC98                    7
+#define DI8DEVTYPEKEYBOARD_NEC98LAPTOP              8
+#define DI8DEVTYPEKEYBOARD_NEC98106                 9
+#define DI8DEVTYPEKEYBOARD_JAPAN106                10
+#define DI8DEVTYPEKEYBOARD_JAPANAX                 11
+#define DI8DEVTYPEKEYBOARD_J3100                   12
+
+#define DI8DEVTYPE_LIMITEDGAMESUBTYPE               1
+
+#define DI8DEVTYPEJOYSTICK_LIMITED                  DI8DEVTYPE_LIMITEDGAMESUBTYPE
+#define DI8DEVTYPEJOYSTICK_STANDARD                 2
+
+#define DI8DEVTYPEGAMEPAD_LIMITED                   DI8DEVTYPE_LIMITEDGAMESUBTYPE
+#define DI8DEVTYPEGAMEPAD_STANDARD                  2
+#define DI8DEVTYPEGAMEPAD_TILT                      3
+
+#define DI8DEVTYPEDRIVING_LIMITED                   DI8DEVTYPE_LIMITEDGAMESUBTYPE
+#define DI8DEVTYPEDRIVING_COMBINEDPEDALS            2
+#define DI8DEVTYPEDRIVING_DUALPEDALS                3
+#define DI8DEVTYPEDRIVING_THREEPEDALS               4
+#define DI8DEVTYPEDRIVING_HANDHELD                  5
+
+#define DI8DEVTYPEFLIGHT_LIMITED                    DI8DEVTYPE_LIMITEDGAMESUBTYPE
+#define DI8DEVTYPEFLIGHT_STICK                      2
+#define DI8DEVTYPEFLIGHT_YOKE                       3
+#define DI8DEVTYPEFLIGHT_RC                         4
+
+#define DI8DEVTYPE1STPERSON_LIMITED                 DI8DEVTYPE_LIMITEDGAMESUBTYPE
+#define DI8DEVTYPE1STPERSON_UNKNOWN                 2
+#define DI8DEVTYPE1STPERSON_SIXDOF                  3
+#define DI8DEVTYPE1STPERSON_SHOOTER                 4
+
+#define DI8DEVTYPESCREENPTR_UNKNOWN                 2
+#define DI8DEVTYPESCREENPTR_LIGHTGUN                3
+#define DI8DEVTYPESCREENPTR_LIGHTPEN                4
+#define DI8DEVTYPESCREENPTR_TOUCH                   5
+
+#define DI8DEVTYPEREMOTE_UNKNOWN                    2
+
+#define DI8DEVTYPEDEVICECTRL_UNKNOWN                2
+#define DI8DEVTYPEDEVICECTRL_COMMSSELECTION         3
+#define DI8DEVTYPEDEVICECTRL_COMMSSELECTION_HARDWIRED 4
+
+#define DI8DEVTYPESUPPLEMENTAL_UNKNOWN              2
+#define DI8DEVTYPESUPPLEMENTAL_2NDHANDCONTROLLER    3
+#define DI8DEVTYPESUPPLEMENTAL_HEADTRACKER          4
+#define DI8DEVTYPESUPPLEMENTAL_HANDTRACKER          5
+#define DI8DEVTYPESUPPLEMENTAL_SHIFTSTICKGATE       6
+#define DI8DEVTYPESUPPLEMENTAL_SHIFTER              7
+#define DI8DEVTYPESUPPLEMENTAL_THROTTLE             8
+#define DI8DEVTYPESUPPLEMENTAL_SPLITTHROTTLE        9
+#define DI8DEVTYPESUPPLEMENTAL_COMBINEDPEDALS      10
+#define DI8DEVTYPESUPPLEMENTAL_DUALPEDALS          11
+#define DI8DEVTYPESUPPLEMENTAL_THREEPEDALS         12
+#define DI8DEVTYPESUPPLEMENTAL_RUDDERPEDALS        13
+	
+#define GET_DIDEVICE_TYPE(dwDevType)     LOBYTE(dwDevType)
+#define GET_DIDEVICE_SUBTYPE(dwDevType)  HIBYTE(dwDevType)
+
+typedef struct DIDEVICEOBJECTINSTANCE_DX3A {
+    DWORD   dwSize;
+    GUID    guidType;
+    DWORD   dwOfs;
+    DWORD   dwType;
+    DWORD   dwFlags;
+    CHAR    tszName[MAX_PATH];
+} DIDEVICEOBJECTINSTANCE_DX3A, *LPDIDEVICEOBJECTINSTANCE_DX3A;
+typedef const DIDEVICEOBJECTINSTANCE_DX3A *LPCDIDEVICEOBJECTINSTANCE_DX3A;
+typedef struct DIDEVICEOBJECTINSTANCE_DX3W {
+    DWORD   dwSize;
+    GUID    guidType;
+    DWORD   dwOfs;
+    DWORD   dwType;
+    DWORD   dwFlags;
+    WCHAR   tszName[MAX_PATH];
+} DIDEVICEOBJECTINSTANCE_DX3W, *LPDIDEVICEOBJECTINSTANCE_DX3W;
+typedef const DIDEVICEOBJECTINSTANCE_DX3W *LPCDIDEVICEOBJECTINSTANCE_DX3W;
+
+DECL_WINELIB_TYPE_AW(DIDEVICEOBJECTINSTANCE_DX3)
+DECL_WINELIB_TYPE_AW(LPDIDEVICEOBJECTINSTANCE_DX3)
+DECL_WINELIB_TYPE_AW(LPCDIDEVICEOBJECTINSTANCE_DX3)
+
+typedef struct DIDEVICEOBJECTINSTANCEA {
+    DWORD	dwSize;
+    GUID	guidType;
+    DWORD	dwOfs;
+    DWORD	dwType;
+    DWORD	dwFlags;
+    CHAR	tszName[MAX_PATH];
+#if(DIRECTINPUT_VERSION >= 0x0500)
+    DWORD	dwFFMaxForce;
+    DWORD	dwFFForceResolution;
+    WORD	wCollectionNumber;
+    WORD	wDesignatorIndex;
+    WORD	wUsagePage;
+    WORD	wUsage;
+    DWORD	dwDimension;
+    WORD	wExponent;
+    WORD	wReserved;
+#endif /* DIRECTINPUT_VERSION >= 0x0500 */
+} DIDEVICEOBJECTINSTANCEA, *LPDIDEVICEOBJECTINSTANCEA;
+typedef const DIDEVICEOBJECTINSTANCEA *LPCDIDEVICEOBJECTINSTANCEA;
+
+typedef struct DIDEVICEOBJECTINSTANCEW {
+    DWORD	dwSize;
+    GUID	guidType;
+    DWORD	dwOfs;
+    DWORD	dwType;
+    DWORD	dwFlags;
+    WCHAR	tszName[MAX_PATH];
+#if(DIRECTINPUT_VERSION >= 0x0500)
+    DWORD	dwFFMaxForce;
+    DWORD	dwFFForceResolution;
+    WORD	wCollectionNumber;
+    WORD	wDesignatorIndex;
+    WORD	wUsagePage;
+    WORD	wUsage;
+    DWORD	dwDimension;
+    WORD	wExponent;
+    WORD	wReserved;
+#endif /* DIRECTINPUT_VERSION >= 0x0500 */
+} DIDEVICEOBJECTINSTANCEW, *LPDIDEVICEOBJECTINSTANCEW;
+typedef const DIDEVICEOBJECTINSTANCEW *LPCDIDEVICEOBJECTINSTANCEW;
+
+DECL_WINELIB_TYPE_AW(DIDEVICEOBJECTINSTANCE)
+DECL_WINELIB_TYPE_AW(LPDIDEVICEOBJECTINSTANCE)
+DECL_WINELIB_TYPE_AW(LPCDIDEVICEOBJECTINSTANCE)
+
+typedef struct DIDEVICEINSTANCE_DX3A {
+    DWORD   dwSize;
+    GUID    guidInstance;
+    GUID    guidProduct;
+    DWORD   dwDevType;
+    CHAR    tszInstanceName[MAX_PATH];
+    CHAR    tszProductName[MAX_PATH];
+} DIDEVICEINSTANCE_DX3A, *LPDIDEVICEINSTANCE_DX3A;
+typedef const DIDEVICEINSTANCE_DX3A *LPCDIDEVICEINSTANCE_DX3A;
+typedef struct DIDEVICEINSTANCE_DX3W {
+    DWORD   dwSize;
+    GUID    guidInstance;
+    GUID    guidProduct;
+    DWORD   dwDevType;
+    WCHAR   tszInstanceName[MAX_PATH];
+    WCHAR   tszProductName[MAX_PATH];
+} DIDEVICEINSTANCE_DX3W, *LPDIDEVICEINSTANCE_DX3W;
+typedef const DIDEVICEINSTANCE_DX3W *LPCDIDEVICEINSTANCE_DX3W;
+
+DECL_WINELIB_TYPE_AW(DIDEVICEINSTANCE_DX3)
+DECL_WINELIB_TYPE_AW(LPDIDEVICEINSTANCE_DX3)
+DECL_WINELIB_TYPE_AW(LPCDIDEVICEINSTANCE_DX3)
+
+typedef struct DIDEVICEINSTANCEA {
+    DWORD	dwSize;
+    GUID	guidInstance;
+    GUID	guidProduct;
+    DWORD	dwDevType;
+    CHAR	tszInstanceName[MAX_PATH];
+    CHAR	tszProductName[MAX_PATH];
+#if(DIRECTINPUT_VERSION >= 0x0500)
+    GUID	guidFFDriver;
+    WORD	wUsagePage;
+    WORD	wUsage;
+#endif /* DIRECTINPUT_VERSION >= 0x0500 */
+} DIDEVICEINSTANCEA, *LPDIDEVICEINSTANCEA;
+typedef const DIDEVICEINSTANCEA *LPCDIDEVICEINSTANCEA;
+
+typedef struct DIDEVICEINSTANCEW {
+    DWORD	dwSize;
+    GUID	guidInstance;
+    GUID	guidProduct;
+    DWORD	dwDevType;
+    WCHAR	tszInstanceName[MAX_PATH];
+    WCHAR	tszProductName[MAX_PATH];
+#if(DIRECTINPUT_VERSION >= 0x0500)
+    GUID	guidFFDriver;
+    WORD	wUsagePage;
+    WORD	wUsage;
+#endif /* DIRECTINPUT_VERSION >= 0x0500 */
+} DIDEVICEINSTANCEW, *LPDIDEVICEINSTANCEW;
+typedef const DIDEVICEINSTANCEW *LPCDIDEVICEINSTANCEW;
+
+DECL_WINELIB_TYPE_AW(DIDEVICEINSTANCE)
+DECL_WINELIB_TYPE_AW(LPDIDEVICEINSTANCE)
+DECL_WINELIB_TYPE_AW(LPCDIDEVICEINSTANCE)
+
+typedef BOOL (CALLBACK *LPDIENUMDEVICESCALLBACKA)(LPCDIDEVICEINSTANCEA,LPVOID);
+typedef BOOL (CALLBACK *LPDIENUMDEVICESCALLBACKW)(LPCDIDEVICEINSTANCEW,LPVOID);
+DECL_WINELIB_TYPE_AW(LPDIENUMDEVICESCALLBACK)
+
+#define DIEDBS_MAPPEDPRI1		0x00000001
+#define DIEDBS_MAPPEDPRI2		0x00000002
+#define DIEDBS_RECENTDEVICE		0x00000010
+#define DIEDBS_NEWDEVICE		0x00000020
+
+#define DIEDBSFL_ATTACHEDONLY		0x00000000
+#define DIEDBSFL_THISUSER		0x00000010
+#define DIEDBSFL_FORCEFEEDBACK		DIEDFL_FORCEFEEDBACK
+#define DIEDBSFL_AVAILABLEDEVICES	0x00001000
+#define DIEDBSFL_MULTIMICEKEYBOARDS	0x00002000
+#define DIEDBSFL_NONGAMINGDEVICES	0x00004000
+#define DIEDBSFL_VALID			0x00007110
+
+#if DIRECTINPUT_VERSION >= 0x0800
+typedef BOOL (CALLBACK *LPDIENUMDEVICESBYSEMANTICSCBA)(LPCDIDEVICEINSTANCEA,LPDIRECTINPUTDEVICE8A,DWORD,DWORD,LPVOID);
+typedef BOOL (CALLBACK *LPDIENUMDEVICESBYSEMANTICSCBW)(LPCDIDEVICEINSTANCEW,LPDIRECTINPUTDEVICE8W,DWORD,DWORD,LPVOID);
+DECL_WINELIB_TYPE_AW(LPDIENUMDEVICESBYSEMANTICSCB)
+#endif
+
+typedef BOOL (CALLBACK *LPDICONFIGUREDEVICESCALLBACK)(LPUNKNOWN,LPVOID);
+
+typedef BOOL (CALLBACK *LPDIENUMDEVICEOBJECTSCALLBACKA)(LPCDIDEVICEOBJECTINSTANCEA,LPVOID);
+typedef BOOL (CALLBACK *LPDIENUMDEVICEOBJECTSCALLBACKW)(LPCDIDEVICEOBJECTINSTANCEW,LPVOID);
+DECL_WINELIB_TYPE_AW(LPDIENUMDEVICEOBJECTSCALLBACK)
+
+#if DIRECTINPUT_VERSION >= 0x0500
+typedef BOOL (CALLBACK *LPDIENUMCREATEDEFFECTOBJECTSCALLBACK)(LPDIRECTINPUTEFFECT, LPVOID);
+#endif
+
+#define DIK_ESCAPE          0x01
+#define DIK_1               0x02
+#define DIK_2               0x03
+#define DIK_3               0x04
+#define DIK_4               0x05
+#define DIK_5               0x06
+#define DIK_6               0x07
+#define DIK_7               0x08
+#define DIK_8               0x09
+#define DIK_9               0x0A
+#define DIK_0               0x0B
+#define DIK_MINUS           0x0C    /* - on main keyboard */
+#define DIK_EQUALS          0x0D
+#define DIK_BACK            0x0E    /* backspace */
+#define DIK_TAB             0x0F
+#define DIK_Q               0x10
+#define DIK_W               0x11
+#define DIK_E               0x12
+#define DIK_R               0x13
+#define DIK_T               0x14
+#define DIK_Y               0x15
+#define DIK_U               0x16
+#define DIK_I               0x17
+#define DIK_O               0x18
+#define DIK_P               0x19
+#define DIK_LBRACKET        0x1A
+#define DIK_RBRACKET        0x1B
+#define DIK_RETURN          0x1C    /* Enter on main keyboard */
+#define DIK_LCONTROL        0x1D
+#define DIK_A               0x1E
+#define DIK_S               0x1F
+#define DIK_D               0x20
+#define DIK_F               0x21
+#define DIK_G               0x22
+#define DIK_H               0x23
+#define DIK_J               0x24
+#define DIK_K               0x25
+#define DIK_L               0x26
+#define DIK_SEMICOLON       0x27
+#define DIK_APOSTROPHE      0x28
+#define DIK_GRAVE           0x29    /* accent grave */
+#define DIK_LSHIFT          0x2A
+#define DIK_BACKSLASH       0x2B
+#define DIK_Z               0x2C
+#define DIK_X               0x2D
+#define DIK_C               0x2E
+#define DIK_V               0x2F
+#define DIK_B               0x30
+#define DIK_N               0x31
+#define DIK_M               0x32
+#define DIK_COMMA           0x33
+#define DIK_PERIOD          0x34    /* . on main keyboard */
+#define DIK_SLASH           0x35    /* / on main keyboard */
+#define DIK_RSHIFT          0x36
+#define DIK_MULTIPLY        0x37    /* * on numeric keypad */
+#define DIK_LMENU           0x38    /* left Alt */
+#define DIK_SPACE           0x39
+#define DIK_CAPITAL         0x3A
+#define DIK_F1              0x3B
+#define DIK_F2              0x3C
+#define DIK_F3              0x3D
+#define DIK_F4              0x3E
+#define DIK_F5              0x3F
+#define DIK_F6              0x40
+#define DIK_F7              0x41
+#define DIK_F8              0x42
+#define DIK_F9              0x43
+#define DIK_F10             0x44
+#define DIK_NUMLOCK         0x45
+#define DIK_SCROLL          0x46    /* Scroll Lock */
+#define DIK_NUMPAD7         0x47
+#define DIK_NUMPAD8         0x48
+#define DIK_NUMPAD9         0x49
+#define DIK_SUBTRACT        0x4A    /* - on numeric keypad */
+#define DIK_NUMPAD4         0x4B
+#define DIK_NUMPAD5         0x4C
+#define DIK_NUMPAD6         0x4D
+#define DIK_ADD             0x4E    /* + on numeric keypad */
+#define DIK_NUMPAD1         0x4F
+#define DIK_NUMPAD2         0x50
+#define DIK_NUMPAD3         0x51
+#define DIK_NUMPAD0         0x52
+#define DIK_DECIMAL         0x53    /* . on numeric keypad */
+#define DIK_OEM_102         0x56    /* < > | on UK/Germany keyboards */
+#define DIK_F11             0x57
+#define DIK_F12             0x58
+#define DIK_F13             0x64    /*                     (NEC PC98) */
+#define DIK_F14             0x65    /*                     (NEC PC98) */
+#define DIK_F15             0x66    /*                     (NEC PC98) */
+#define DIK_KANA            0x70    /* (Japanese keyboard)            */
+#define DIK_ABNT_C1         0x73    /* / ? on Portugese (Brazilian) keyboards */
+#define DIK_CONVERT         0x79    /* (Japanese keyboard)            */
+#define DIK_NOCONVERT       0x7B    /* (Japanese keyboard)            */
+#define DIK_YEN             0x7D    /* (Japanese keyboard)            */
+#define DIK_ABNT_C2         0x7E    /* Numpad . on Portugese (Brazilian) keyboards */
+#define DIK_NUMPADEQUALS    0x8D    /* = on numeric keypad (NEC PC98) */
+#define DIK_CIRCUMFLEX      0x90    /* (Japanese keyboard)            */
+#define DIK_AT              0x91    /*                     (NEC PC98) */
+#define DIK_COLON           0x92    /*                     (NEC PC98) */
+#define DIK_UNDERLINE       0x93    /*                     (NEC PC98) */
+#define DIK_KANJI           0x94    /* (Japanese keyboard)            */
+#define DIK_STOP            0x95    /*                     (NEC PC98) */
+#define DIK_AX              0x96    /*                     (Japan AX) */
+#define DIK_UNLABELED       0x97    /*                        (J3100) */
+#define DIK_NEXTTRACK       0x99    /* Next Track */
+#define DIK_NUMPADENTER     0x9C    /* Enter on numeric keypad */
+#define DIK_RCONTROL        0x9D
+#define DIK_MUTE	    0xA0    /* Mute */
+#define DIK_CALCULATOR      0xA1    /* Calculator */
+#define DIK_PLAYPAUSE       0xA2    /* Play / Pause */
+#define DIK_MEDIASTOP       0xA4    /* Media Stop */
+#define DIK_VOLUMEDOWN      0xAE    /* Volume - */
+#define DIK_VOLUMEUP        0xB0    /* Volume + */
+#define DIK_WEBHOME         0xB2    /* Web home */
+#define DIK_NUMPADCOMMA     0xB3    /* , on numeric keypad (NEC PC98) */
+#define DIK_DIVIDE          0xB5    /* / on numeric keypad */
+#define DIK_SYSRQ           0xB7
+#define DIK_RMENU           0xB8    /* right Alt */
+#define DIK_PAUSE           0xC5    /* Pause */
+#define DIK_HOME            0xC7    /* Home on arrow keypad */
+#define DIK_UP              0xC8    /* UpArrow on arrow keypad */
+#define DIK_PRIOR           0xC9    /* PgUp on arrow keypad */
+#define DIK_LEFT            0xCB    /* LeftArrow on arrow keypad */
+#define DIK_RIGHT           0xCD    /* RightArrow on arrow keypad */
+#define DIK_END             0xCF    /* End on arrow keypad */
+#define DIK_DOWN            0xD0    /* DownArrow on arrow keypad */
+#define DIK_NEXT            0xD1    /* PgDn on arrow keypad */
+#define DIK_INSERT          0xD2    /* Insert on arrow keypad */
+#define DIK_DELETE          0xD3    /* Delete on arrow keypad */
+#define DIK_LWIN            0xDB    /* Left Windows key */
+#define DIK_RWIN            0xDC    /* Right Windows key */
+#define DIK_APPS            0xDD    /* AppMenu key */
+#define DIK_POWER           0xDE
+#define DIK_SLEEP           0xDF
+#define DIK_WAKE            0xE3    /* System Wake */
+#define DIK_WEBSEARCH       0xE5    /* Web Search */
+#define DIK_WEBFAVORITES    0xE6    /* Web Favorites */
+#define DIK_WEBREFRESH      0xE7    /* Web Refresh */
+#define DIK_WEBSTOP         0xE8    /* Web Stop */
+#define DIK_WEBFORWARD      0xE9    /* Web Forward */
+#define DIK_WEBBACK         0xEA    /* Web Back */
+#define DIK_MYCOMPUTER      0xEB    /* My Computer */
+#define DIK_MAIL            0xEC    /* Mail */
+#define DIK_MEDIASELECT     0xED    /* Media Select */
+
+#define DIK_BACKSPACE       DIK_BACK            /* backspace */
+#define DIK_NUMPADSTAR      DIK_MULTIPLY        /* * on numeric keypad */
+#define DIK_LALT            DIK_LMENU           /* left Alt */
+#define DIK_CAPSLOCK        DIK_CAPITAL         /* CapsLock */
+#define DIK_NUMPADMINUS     DIK_SUBTRACT        /* - on numeric keypad */
+#define DIK_NUMPADPLUS      DIK_ADD             /* + on numeric keypad */
+#define DIK_NUMPADPERIOD    DIK_DECIMAL         /* . on numeric keypad */
+#define DIK_NUMPADSLASH     DIK_DIVIDE          /* / on numeric keypad */
+#define DIK_RALT            DIK_RMENU           /* right Alt */
+#define DIK_UPARROW         DIK_UP              /* UpArrow on arrow keypad */
+#define DIK_PGUP            DIK_PRIOR           /* PgUp on arrow keypad */
+#define DIK_LEFTARROW       DIK_LEFT            /* LeftArrow on arrow keypad */
+#define DIK_RIGHTARROW      DIK_RIGHT           /* RightArrow on arrow keypad */
+#define DIK_DOWNARROW       DIK_DOWN            /* DownArrow on arrow keypad */
+#define DIK_PGDN            DIK_NEXT            /* PgDn on arrow keypad */
+
+#define DIDFT_ALL		0x00000000
+#define DIDFT_RELAXIS		0x00000001
+#define DIDFT_ABSAXIS		0x00000002
+#define DIDFT_AXIS		0x00000003
+#define DIDFT_PSHBUTTON		0x00000004
+#define DIDFT_TGLBUTTON		0x00000008
+#define DIDFT_BUTTON		0x0000000C
+#define DIDFT_POV		0x00000010
+#define DIDFT_COLLECTION	0x00000040
+#define DIDFT_NODATA		0x00000080
+#define DIDFT_ANYINSTANCE	0x00FFFF00
+#define DIDFT_INSTANCEMASK	DIDFT_ANYINSTANCE
+#define DIDFT_MAKEINSTANCE(n)	((WORD)(n) << 8)
+#define DIDFT_GETTYPE(n)	LOBYTE(n)
+#define DIDFT_GETINSTANCE(n)	LOWORD((n) >> 8)
+#define DIDFT_FFACTUATOR	0x01000000
+#define DIDFT_FFEFFECTTRIGGER	0x02000000
+#if DIRECTINPUT_VERSION >= 0x050a
+#define DIDFT_OUTPUT		0x10000000
+#define DIDFT_VENDORDEFINED	0x04000000
+#define DIDFT_ALIAS		0x08000000
+#endif /* DI5a */
+#ifndef DIDFT_OPTIONAL
+#define DIDFT_OPTIONAL		0x80000000
+#endif
+#define DIDFT_ENUMCOLLECTION(n)	((WORD)(n) << 8)
+#define DIDFT_NOCOLLECTION	0x00FFFF00
+
+#define DIDF_ABSAXIS		0x00000001
+#define DIDF_RELAXIS		0x00000002
+
+#define DIGDD_PEEK		0x00000001
+
+#define DISEQUENCE_COMPARE(dwSq1,cmp,dwSq2) ((int)((dwSq1) - (dwSq2)) cmp 0)
+
+typedef struct DIDEVICEOBJECTDATA_DX3 {
+    DWORD	dwOfs;
+    DWORD	dwData;
+    DWORD	dwTimeStamp;
+    DWORD	dwSequence;
+} DIDEVICEOBJECTDATA_DX3,*LPDIDEVICEOBJECTDATA_DX3;
+typedef const DIDEVICEOBJECTDATA_DX3 *LPCDIDEVICEOBJECTDATA_DX3;
+
+typedef struct DIDEVICEOBJECTDATA {
+    DWORD	dwOfs;
+    DWORD	dwData;
+    DWORD	dwTimeStamp;
+    DWORD	dwSequence;
+#if(DIRECTINPUT_VERSION >= 0x0800)
+    UINT_PTR	uAppData;
+#endif /* DIRECTINPUT_VERSION >= 0x0800 */
+} DIDEVICEOBJECTDATA, *LPDIDEVICEOBJECTDATA;
+typedef const DIDEVICEOBJECTDATA *LPCDIDEVICEOBJECTDATA;
+
+typedef struct _DIOBJECTDATAFORMAT {
+    const GUID *pguid;
+    DWORD	dwOfs;
+    DWORD	dwType;
+    DWORD	dwFlags;
+} DIOBJECTDATAFORMAT, *LPDIOBJECTDATAFORMAT;
+typedef const DIOBJECTDATAFORMAT *LPCDIOBJECTDATAFORMAT;
+
+typedef struct _DIDATAFORMAT {
+    DWORD			dwSize;
+    DWORD			dwObjSize;
+    DWORD			dwFlags;
+    DWORD			dwDataSize;
+    DWORD			dwNumObjs;
+    LPDIOBJECTDATAFORMAT	rgodf;
+} DIDATAFORMAT, *LPDIDATAFORMAT;
+typedef const DIDATAFORMAT *LPCDIDATAFORMAT;
+
+#if DIRECTINPUT_VERSION >= 0x0500
+#define DIDOI_FFACTUATOR	0x00000001
+#define DIDOI_FFEFFECTTRIGGER	0x00000002
+#define DIDOI_POLLED		0x00008000
+#define DIDOI_ASPECTPOSITION	0x00000100
+#define DIDOI_ASPECTVELOCITY	0x00000200
+#define DIDOI_ASPECTACCEL	0x00000300
+#define DIDOI_ASPECTFORCE	0x00000400
+#define DIDOI_ASPECTMASK	0x00000F00
+#endif /* DI5 */
+#if DIRECTINPUT_VERSION >= 0x050a
+#define DIDOI_GUIDISUSAGE	0x00010000
+#endif /* DI5a */
+
+typedef struct DIPROPHEADER {
+    DWORD	dwSize;
+    DWORD	dwHeaderSize;
+    DWORD	dwObj;
+    DWORD	dwHow;
+} DIPROPHEADER,*LPDIPROPHEADER;
+typedef const DIPROPHEADER *LPCDIPROPHEADER;
+
+#define DIPH_DEVICE	0
+#define DIPH_BYOFFSET	1
+#define DIPH_BYID	2
+#if DIRECTINPUT_VERSION >= 0x050a
+#define DIPH_BYUSAGE	3
+
+#define DIMAKEUSAGEDWORD(UsagePage, Usage) (DWORD)MAKELONG(Usage, UsagePage)
+#endif /* DI5a */
+
+typedef struct DIPROPDWORD {
+	DIPROPHEADER	diph;
+	DWORD		dwData;
+} DIPROPDWORD, *LPDIPROPDWORD;
+typedef const DIPROPDWORD *LPCDIPROPDWORD;
+
+typedef struct DIPROPRANGE {
+	DIPROPHEADER	diph;
+	LONG		lMin;
+	LONG		lMax;
+} DIPROPRANGE, *LPDIPROPRANGE;
+typedef const DIPROPRANGE *LPCDIPROPRANGE;
+
+#define DIPROPRANGE_NOMIN	((LONG)0x80000000)
+#define DIPROPRANGE_NOMAX	((LONG)0x7FFFFFFF)
+
+#if DIRECTINPUT_VERSION >= 0x050a
+typedef struct DIPROPCAL {
+	DIPROPHEADER diph;
+	LONG	lMin;
+	LONG	lCenter;
+	LONG	lMax;
+} DIPROPCAL, *LPDIPROPCAL;
+typedef const DIPROPCAL *LPCDIPROPCAL;
+
+typedef struct DIPROPCALPOV {
+	DIPROPHEADER	diph;
+	LONG		lMin[5];
+	LONG		lMax[5];
+} DIPROPCALPOV, *LPDIPROPCALPOV;
+typedef const DIPROPCALPOV *LPCDIPROPCALPOV;
+
+typedef struct DIPROPGUIDANDPATH {
+	DIPROPHEADER diph;
+	GUID    guidClass;
+	WCHAR   wszPath[MAX_PATH];
+} DIPROPGUIDANDPATH, *LPDIPROPGUIDANDPATH;
+typedef const DIPROPGUIDANDPATH *LPCDIPROPGUIDANDPATH;
+
+typedef struct DIPROPSTRING {
+        DIPROPHEADER diph;
+        WCHAR        wsz[MAX_PATH];
+} DIPROPSTRING, *LPDIPROPSTRING;
+typedef const DIPROPSTRING *LPCDIPROPSTRING;
+#endif /* DI5a */
+
+#if DIRECTINPUT_VERSION >= 0x0800
+typedef struct DIPROPPOINTER {
+	DIPROPHEADER diph;
+	UINT_PTR     uData;
+} DIPROPPOINTER, *LPDIPROPPOINTER;
+typedef const DIPROPPOINTER *LPCDIPROPPOINTER;
+#endif /* DI8 */
+
+/* special property GUIDs */
+#ifdef __cplusplus
+#define MAKEDIPROP(prop)	(*(const GUID *)(prop))
+#else
+#define MAKEDIPROP(prop)	((REFGUID)(prop))
+#endif
+#define DIPROP_BUFFERSIZE	MAKEDIPROP(1)
+#define DIPROP_AXISMODE		MAKEDIPROP(2)
+
+#define DIPROPAXISMODE_ABS	0
+#define DIPROPAXISMODE_REL	1
+
+#define DIPROP_GRANULARITY	MAKEDIPROP(3)
+#define DIPROP_RANGE		MAKEDIPROP(4)
+#define DIPROP_DEADZONE		MAKEDIPROP(5)
+#define DIPROP_SATURATION	MAKEDIPROP(6)
+#define DIPROP_FFGAIN		MAKEDIPROP(7)
+#define DIPROP_FFLOAD		MAKEDIPROP(8)
+#define DIPROP_AUTOCENTER	MAKEDIPROP(9)
+
+#define DIPROPAUTOCENTER_OFF	0
+#define DIPROPAUTOCENTER_ON	1
+
+#define DIPROP_CALIBRATIONMODE	MAKEDIPROP(10)
+
+#define DIPROPCALIBRATIONMODE_COOKED	0
+#define DIPROPCALIBRATIONMODE_RAW	1
+
+#if DIRECTINPUT_VERSION >= 0x050a
+#define DIPROP_CALIBRATION	MAKEDIPROP(11)
+#define DIPROP_GUIDANDPATH	MAKEDIPROP(12)
+#define DIPROP_INSTANCENAME	MAKEDIPROP(13)
+#define DIPROP_PRODUCTNAME	MAKEDIPROP(14)
+#endif
+
+#if DIRECTINPUT_VERSION >= 0x5B2
+#define DIPROP_JOYSTICKID	MAKEDIPROP(15)
+#define DIPROP_GETPORTDISPLAYNAME	MAKEDIPROP(16)
+#endif
+
+#if DIRECTINPUT_VERSION >= 0x0700
+#define DIPROP_PHYSICALRANGE	MAKEDIPROP(18)
+#define DIPROP_LOGICALRANGE	MAKEDIPROP(19)
+#endif
+
+#if(DIRECTINPUT_VERSION >= 0x0800)
+#define DIPROP_KEYNAME		MAKEDIPROP(20)
+#define DIPROP_CPOINTS		MAKEDIPROP(21)
+#define DIPROP_APPDATA		MAKEDIPROP(22)
+#define DIPROP_SCANCODE		MAKEDIPROP(23)
+#define DIPROP_VIDPID		MAKEDIPROP(24)
+#define DIPROP_USERNAME		MAKEDIPROP(25)
+#define DIPROP_TYPENAME		MAKEDIPROP(26)
+
+#define MAXCPOINTSNUM		8
+
+typedef struct _CPOINT {
+    LONG	lP;
+    DWORD	dwLog;
+} CPOINT, *PCPOINT;
+
+typedef struct DIPROPCPOINTS {
+    DIPROPHEADER diph;
+    DWORD	dwCPointsNum;
+    CPOINT	cp[MAXCPOINTSNUM];
+} DIPROPCPOINTS, *LPDIPROPCPOINTS;
+typedef const DIPROPCPOINTS *LPCDIPROPCPOINTS;
+#endif /* DI8 */
+
+
+typedef struct DIDEVCAPS_DX3 {
+    DWORD	dwSize;
+    DWORD	dwFlags;
+    DWORD	dwDevType;
+    DWORD	dwAxes;
+    DWORD	dwButtons;
+    DWORD	dwPOVs;
+} DIDEVCAPS_DX3, *LPDIDEVCAPS_DX3;
+
+typedef struct DIDEVCAPS {
+    DWORD	dwSize;
+    DWORD	dwFlags;
+    DWORD	dwDevType;
+    DWORD	dwAxes;
+    DWORD	dwButtons;
+    DWORD	dwPOVs;
+#if(DIRECTINPUT_VERSION >= 0x0500)
+    DWORD	dwFFSamplePeriod;
+    DWORD	dwFFMinTimeResolution;
+    DWORD	dwFirmwareRevision;
+    DWORD	dwHardwareRevision;
+    DWORD	dwFFDriverVersion;
+#endif /* DIRECTINPUT_VERSION >= 0x0500 */
+} DIDEVCAPS,*LPDIDEVCAPS;
+
+#define DIDC_ATTACHED		0x00000001
+#define DIDC_POLLEDDEVICE	0x00000002
+#define DIDC_EMULATED		0x00000004
+#define DIDC_POLLEDDATAFORMAT	0x00000008
+#define DIDC_FORCEFEEDBACK	0x00000100
+#define DIDC_FFATTACK		0x00000200
+#define DIDC_FFFADE		0x00000400
+#define DIDC_SATURATION		0x00000800
+#define DIDC_POSNEGCOEFFICIENTS	0x00001000
+#define DIDC_POSNEGSATURATION	0x00002000
+#define DIDC_DEADBAND		0x00004000
+#define DIDC_STARTDELAY		0x00008000
+#define DIDC_ALIAS		0x00010000
+#define DIDC_PHANTOM		0x00020000
+#define DIDC_HIDDEN		0x00040000
+
+
+/* SetCooperativeLevel dwFlags */
+#define DISCL_EXCLUSIVE		0x00000001
+#define DISCL_NONEXCLUSIVE	0x00000002
+#define DISCL_FOREGROUND	0x00000004
+#define DISCL_BACKGROUND	0x00000008
+#define DISCL_NOWINKEY          0x00000010
+
+#if (DIRECTINPUT_VERSION >= 0x0500)
+/* Device FF flags */
+#define DISFFC_RESET            0x00000001
+#define DISFFC_STOPALL          0x00000002
+#define DISFFC_PAUSE            0x00000004
+#define DISFFC_CONTINUE         0x00000008
+#define DISFFC_SETACTUATORSON   0x00000010
+#define DISFFC_SETACTUATORSOFF  0x00000020
+
+#define DIGFFS_EMPTY            0x00000001
+#define DIGFFS_STOPPED          0x00000002
+#define DIGFFS_PAUSED           0x00000004
+#define DIGFFS_ACTUATORSON      0x00000010
+#define DIGFFS_ACTUATORSOFF     0x00000020
+#define DIGFFS_POWERON          0x00000040
+#define DIGFFS_POWEROFF         0x00000080
+#define DIGFFS_SAFETYSWITCHON   0x00000100
+#define DIGFFS_SAFETYSWITCHOFF  0x00000200
+#define DIGFFS_USERFFSWITCHON   0x00000400
+#define DIGFFS_USERFFSWITCHOFF  0x00000800
+#define DIGFFS_DEVICELOST       0x80000000
+
+/* Effect flags */
+#define DIEFT_ALL		0x00000000
+
+#define DIEFT_CONSTANTFORCE	0x00000001
+#define DIEFT_RAMPFORCE		0x00000002
+#define DIEFT_PERIODIC		0x00000003
+#define DIEFT_CONDITION		0x00000004
+#define DIEFT_CUSTOMFORCE	0x00000005
+#define DIEFT_HARDWARE		0x000000FF
+#define DIEFT_FFATTACK		0x00000200
+#define DIEFT_FFFADE		0x00000400
+#define DIEFT_SATURATION	0x00000800
+#define DIEFT_POSNEGCOEFFICIENTS 0x00001000
+#define DIEFT_POSNEGSATURATION	0x00002000
+#define DIEFT_DEADBAND		0x00004000
+#define DIEFT_STARTDELAY	0x00008000
+#define DIEFT_GETTYPE(n)	LOBYTE(n)
+
+#define DIEFF_OBJECTIDS         0x00000001
+#define DIEFF_OBJECTOFFSETS     0x00000002
+#define DIEFF_CARTESIAN         0x00000010
+#define DIEFF_POLAR             0x00000020
+#define DIEFF_SPHERICAL         0x00000040
+
+#define DIEP_DURATION           0x00000001
+#define DIEP_SAMPLEPERIOD       0x00000002
+#define DIEP_GAIN               0x00000004
+#define DIEP_TRIGGERBUTTON      0x00000008
+#define DIEP_TRIGGERREPEATINTERVAL 0x00000010
+#define DIEP_AXES               0x00000020
+#define DIEP_DIRECTION          0x00000040
+#define DIEP_ENVELOPE           0x00000080
+#define DIEP_TYPESPECIFICPARAMS 0x00000100
+#if(DIRECTINPUT_VERSION >= 0x0600)
+#define DIEP_STARTDELAY         0x00000200
+#define DIEP_ALLPARAMS_DX5      0x000001FF
+#define DIEP_ALLPARAMS          0x000003FF
+#else
+#define DIEP_ALLPARAMS          0x000001FF
+#endif /* DIRECTINPUT_VERSION >= 0x0600 */
+#define DIEP_START              0x20000000
+#define DIEP_NORESTART          0x40000000
+#define DIEP_NODOWNLOAD         0x80000000
+#define DIEB_NOTRIGGER          0xFFFFFFFF
+
+#define DIES_SOLO               0x00000001
+#define DIES_NODOWNLOAD         0x80000000
+
+#define DIEGES_PLAYING          0x00000001
+#define DIEGES_EMULATED         0x00000002
+
+#define DI_DEGREES		100
+#define DI_FFNOMINALMAX		10000
+#define DI_SECONDS		1000000
+
+typedef struct DICONSTANTFORCE {
+	LONG			lMagnitude;
+} DICONSTANTFORCE, *LPDICONSTANTFORCE;
+typedef const DICONSTANTFORCE *LPCDICONSTANTFORCE;
+
+typedef struct DIRAMPFORCE {
+	LONG			lStart;
+	LONG			lEnd;
+} DIRAMPFORCE, *LPDIRAMPFORCE;
+typedef const DIRAMPFORCE *LPCDIRAMPFORCE;
+
+typedef struct DIPERIODIC {
+	DWORD			dwMagnitude;
+	LONG			lOffset;
+	DWORD			dwPhase;
+	DWORD			dwPeriod;
+} DIPERIODIC, *LPDIPERIODIC;
+typedef const DIPERIODIC *LPCDIPERIODIC;
+
+typedef struct DICONDITION {
+	LONG			lOffset;
+	LONG			lPositiveCoefficient;
+	LONG			lNegativeCoefficient;
+	DWORD			dwPositiveSaturation;
+	DWORD			dwNegativeSaturation;
+	LONG			lDeadBand;
+} DICONDITION, *LPDICONDITION;
+typedef const DICONDITION *LPCDICONDITION;
+
+typedef struct DICUSTOMFORCE {
+	DWORD			cChannels;
+	DWORD			dwSamplePeriod;
+	DWORD			cSamples;
+	LPLONG			rglForceData;
+} DICUSTOMFORCE, *LPDICUSTOMFORCE;
+typedef const DICUSTOMFORCE *LPCDICUSTOMFORCE;
+
+typedef struct DIENVELOPE {
+	DWORD			dwSize;
+	DWORD			dwAttackLevel;
+	DWORD			dwAttackTime;
+	DWORD			dwFadeLevel;
+	DWORD			dwFadeTime;
+} DIENVELOPE, *LPDIENVELOPE;
+typedef const DIENVELOPE *LPCDIENVELOPE;
+
+typedef struct DIEFFECT_DX5 {
+	DWORD			dwSize;
+	DWORD			dwFlags;
+	DWORD			dwDuration;
+	DWORD			dwSamplePeriod;
+	DWORD			dwGain;
+	DWORD			dwTriggerButton;
+	DWORD			dwTriggerRepeatInterval;
+	DWORD			cAxes;
+	LPDWORD			rgdwAxes;
+	LPLONG			rglDirection;
+	LPDIENVELOPE		lpEnvelope;
+	DWORD			cbTypeSpecificParams;
+	LPVOID			lpvTypeSpecificParams;
+} DIEFFECT_DX5, *LPDIEFFECT_DX5;
+typedef const DIEFFECT_DX5 *LPCDIEFFECT_DX5;
+
+typedef struct DIEFFECT {
+	DWORD			dwSize;
+	DWORD			dwFlags;
+	DWORD			dwDuration;
+	DWORD			dwSamplePeriod;
+	DWORD			dwGain;
+	DWORD			dwTriggerButton;
+	DWORD			dwTriggerRepeatInterval;
+	DWORD			cAxes;
+	LPDWORD			rgdwAxes;
+	LPLONG			rglDirection;
+	LPDIENVELOPE		lpEnvelope;
+	DWORD			cbTypeSpecificParams;
+	LPVOID			lpvTypeSpecificParams;
+#if(DIRECTINPUT_VERSION >= 0x0600)
+	DWORD			dwStartDelay;
+#endif /* DIRECTINPUT_VERSION >= 0x0600 */
+} DIEFFECT, *LPDIEFFECT;
+typedef const DIEFFECT *LPCDIEFFECT;
+typedef DIEFFECT DIEFFECT_DX6;
+typedef LPDIEFFECT LPDIEFFECT_DX6;
+
+typedef struct DIEFFECTINFOA {
+	DWORD			dwSize;
+	GUID			guid;
+	DWORD			dwEffType;
+	DWORD			dwStaticParams;
+	DWORD			dwDynamicParams;
+	CHAR			tszName[MAX_PATH];
+} DIEFFECTINFOA, *LPDIEFFECTINFOA;
+typedef const DIEFFECTINFOA *LPCDIEFFECTINFOA;
+
+typedef struct DIEFFECTINFOW {
+	DWORD			dwSize;
+	GUID			guid;
+	DWORD			dwEffType;
+	DWORD			dwStaticParams;
+	DWORD			dwDynamicParams;
+	WCHAR			tszName[MAX_PATH];
+} DIEFFECTINFOW, *LPDIEFFECTINFOW;
+typedef const DIEFFECTINFOW *LPCDIEFFECTINFOW;
+
+DECL_WINELIB_TYPE_AW(DIEFFECTINFO)
+DECL_WINELIB_TYPE_AW(LPDIEFFECTINFO)
+DECL_WINELIB_TYPE_AW(LPCDIEFFECTINFO)
+
+typedef BOOL (CALLBACK *LPDIENUMEFFECTSCALLBACKA)(LPCDIEFFECTINFOA, LPVOID);
+typedef BOOL (CALLBACK *LPDIENUMEFFECTSCALLBACKW)(LPCDIEFFECTINFOW, LPVOID);
+
+typedef struct DIEFFESCAPE {
+	DWORD	dwSize;
+	DWORD	dwCommand;
+	LPVOID	lpvInBuffer;
+	DWORD	cbInBuffer;
+	LPVOID	lpvOutBuffer;
+	DWORD	cbOutBuffer;
+} DIEFFESCAPE, *LPDIEFFESCAPE;
+
+typedef struct DIJOYSTATE {
+	LONG	lX;
+	LONG	lY;
+	LONG	lZ;
+	LONG	lRx;
+	LONG	lRy;
+	LONG	lRz;
+	LONG	rglSlider[2];
+	DWORD	rgdwPOV[4];
+	BYTE	rgbButtons[32];
+} DIJOYSTATE, *LPDIJOYSTATE;
+
+typedef struct DIJOYSTATE2 {
+	LONG	lX;
+	LONG	lY;
+	LONG	lZ;
+	LONG	lRx;
+	LONG	lRy;
+	LONG	lRz;
+	LONG	rglSlider[2];
+	DWORD	rgdwPOV[4];
+	BYTE	rgbButtons[128];
+	LONG	lVX;		/* 'v' as in velocity */
+	LONG	lVY;
+	LONG	lVZ;
+	LONG	lVRx;
+	LONG	lVRy;
+	LONG	lVRz;
+	LONG	rglVSlider[2];
+	LONG	lAX;		/* 'a' as in acceleration */
+	LONG	lAY;
+	LONG	lAZ;
+	LONG	lARx;
+	LONG	lARy;
+	LONG	lARz;
+	LONG	rglASlider[2];
+	LONG	lFX;		/* 'f' as in force */
+	LONG	lFY;
+	LONG	lFZ;
+	LONG	lFRx;		/* 'fr' as in rotational force aka torque */
+	LONG	lFRy;
+	LONG	lFRz;
+	LONG	rglFSlider[2];
+} DIJOYSTATE2, *LPDIJOYSTATE2;
+
+#define DIJOFS_X		FIELD_OFFSET(DIJOYSTATE, lX)
+#define DIJOFS_Y		FIELD_OFFSET(DIJOYSTATE, lY)
+#define DIJOFS_Z		FIELD_OFFSET(DIJOYSTATE, lZ)
+#define DIJOFS_RX		FIELD_OFFSET(DIJOYSTATE, lRx)
+#define DIJOFS_RY		FIELD_OFFSET(DIJOYSTATE, lRy)
+#define DIJOFS_RZ		FIELD_OFFSET(DIJOYSTATE, lRz)
+#define DIJOFS_SLIDER(n)	(FIELD_OFFSET(DIJOYSTATE, rglSlider) + \
+                                                        (n) * sizeof(LONG))
+#define DIJOFS_POV(n)		(FIELD_OFFSET(DIJOYSTATE, rgdwPOV) + \
+                                                        (n) * sizeof(DWORD))
+#define DIJOFS_BUTTON(n)	(FIELD_OFFSET(DIJOYSTATE, rgbButtons) + (n))
+#define DIJOFS_BUTTON0		DIJOFS_BUTTON(0)
+#define DIJOFS_BUTTON1		DIJOFS_BUTTON(1)
+#define DIJOFS_BUTTON2		DIJOFS_BUTTON(2)
+#define DIJOFS_BUTTON3		DIJOFS_BUTTON(3)
+#define DIJOFS_BUTTON4		DIJOFS_BUTTON(4)
+#define DIJOFS_BUTTON5		DIJOFS_BUTTON(5)
+#define DIJOFS_BUTTON6		DIJOFS_BUTTON(6)
+#define DIJOFS_BUTTON7		DIJOFS_BUTTON(7)
+#define DIJOFS_BUTTON8		DIJOFS_BUTTON(8)
+#define DIJOFS_BUTTON9		DIJOFS_BUTTON(9)
+#define DIJOFS_BUTTON10		DIJOFS_BUTTON(10)
+#define DIJOFS_BUTTON11		DIJOFS_BUTTON(11)
+#define DIJOFS_BUTTON12		DIJOFS_BUTTON(12)
+#define DIJOFS_BUTTON13		DIJOFS_BUTTON(13)
+#define DIJOFS_BUTTON14		DIJOFS_BUTTON(14)
+#define DIJOFS_BUTTON15		DIJOFS_BUTTON(15)
+#define DIJOFS_BUTTON16		DIJOFS_BUTTON(16)
+#define DIJOFS_BUTTON17		DIJOFS_BUTTON(17)
+#define DIJOFS_BUTTON18		DIJOFS_BUTTON(18)
+#define DIJOFS_BUTTON19		DIJOFS_BUTTON(19)
+#define DIJOFS_BUTTON20		DIJOFS_BUTTON(20)
+#define DIJOFS_BUTTON21		DIJOFS_BUTTON(21)
+#define DIJOFS_BUTTON22		DIJOFS_BUTTON(22)
+#define DIJOFS_BUTTON23		DIJOFS_BUTTON(23)
+#define DIJOFS_BUTTON24		DIJOFS_BUTTON(24)
+#define DIJOFS_BUTTON25		DIJOFS_BUTTON(25)
+#define DIJOFS_BUTTON26		DIJOFS_BUTTON(26)
+#define DIJOFS_BUTTON27		DIJOFS_BUTTON(27)
+#define DIJOFS_BUTTON28		DIJOFS_BUTTON(28)
+#define DIJOFS_BUTTON29		DIJOFS_BUTTON(29)
+#define DIJOFS_BUTTON30		DIJOFS_BUTTON(30)
+#define DIJOFS_BUTTON31		DIJOFS_BUTTON(31)
+#endif /* DIRECTINPUT_VERSION >= 0x0500 */
+
+/* DInput 7 structures, types */
+#if(DIRECTINPUT_VERSION >= 0x0700)
+typedef struct DIFILEEFFECT {
+  DWORD       dwSize;
+  GUID        GuidEffect;
+  LPCDIEFFECT lpDiEffect;
+  CHAR        szFriendlyName[MAX_PATH];
+} DIFILEEFFECT, *LPDIFILEEFFECT;
+
+typedef const DIFILEEFFECT *LPCDIFILEEFFECT;
+typedef BOOL (CALLBACK *LPDIENUMEFFECTSINFILECALLBACK)(LPCDIFILEEFFECT , LPVOID);
+#endif /* DIRECTINPUT_VERSION >= 0x0700 */
+
+/* DInput 8 structures and types */
+#if DIRECTINPUT_VERSION >= 0x0800
+typedef struct _DIACTIONA {
+	UINT_PTR	uAppData;
+	DWORD		dwSemantic;
+	DWORD		dwFlags;
+	__GNU_EXTENSION union {
+		LPCSTR	lptszActionName;
+		UINT	uResIdString;
+	} DUMMYUNIONNAME;
+	GUID		guidInstance;
+	DWORD		dwObjID;
+	DWORD		dwHow;
+} DIACTIONA, *LPDIACTIONA;
+typedef const DIACTIONA *LPCDIACTIONA;
+
+typedef struct _DIACTIONW {
+	UINT_PTR	uAppData;
+	DWORD		dwSemantic;
+	DWORD		dwFlags;
+	__GNU_EXTENSION union {
+		LPCWSTR	lptszActionName;
+		UINT	uResIdString;
+	} DUMMYUNIONNAME;
+	GUID		guidInstance;
+	DWORD		dwObjID;
+	DWORD		dwHow;
+} DIACTIONW, *LPDIACTIONW;
+typedef const DIACTIONW *LPCDIACTIONW;
+
+DECL_WINELIB_TYPE_AW(DIACTION)
+DECL_WINELIB_TYPE_AW(LPDIACTION)
+DECL_WINELIB_TYPE_AW(LPCDIACTION)
+
+#define DIA_FORCEFEEDBACK	0x00000001
+#define DIA_APPMAPPED		0x00000002
+#define DIA_APPNOMAP		0x00000004
+#define DIA_NORANGE		0x00000008
+#define DIA_APPFIXED		0x00000010
+
+#define DIAH_UNMAPPED		0x00000000
+#define DIAH_USERCONFIG		0x00000001
+#define DIAH_APPREQUESTED	0x00000002
+#define DIAH_HWAPP		0x00000004
+#define DIAH_HWDEFAULT		0x00000008
+#define DIAH_DEFAULT		0x00000020
+#define DIAH_ERROR		0x80000000
+
+typedef struct _DIACTIONFORMATA {
+	DWORD		dwSize;
+	DWORD		dwActionSize;
+	DWORD		dwDataSize;
+	DWORD		dwNumActions;
+	LPDIACTIONA	rgoAction;
+	GUID		guidActionMap;
+	DWORD		dwGenre;
+	DWORD		dwBufferSize;
+	LONG		lAxisMin;
+	LONG		lAxisMax;
+	HINSTANCE	hInstString;
+	FILETIME	ftTimeStamp;
+	DWORD		dwCRC;
+	CHAR		tszActionMap[MAX_PATH];
+} DIACTIONFORMATA, *LPDIACTIONFORMATA;
+typedef const DIACTIONFORMATA *LPCDIACTIONFORMATA;
+
+typedef struct _DIACTIONFORMATW {
+	DWORD		dwSize;
+	DWORD		dwActionSize;
+	DWORD		dwDataSize;
+	DWORD		dwNumActions;
+	LPDIACTIONW	rgoAction;
+	GUID		guidActionMap;
+	DWORD		dwGenre;
+	DWORD		dwBufferSize;
+	LONG		lAxisMin;
+	LONG		lAxisMax;
+	HINSTANCE	hInstString;
+	FILETIME	ftTimeStamp;
+	DWORD		dwCRC;
+	WCHAR		tszActionMap[MAX_PATH];
+} DIACTIONFORMATW, *LPDIACTIONFORMATW;
+typedef const DIACTIONFORMATW *LPCDIACTIONFORMATW;
+
+DECL_WINELIB_TYPE_AW(DIACTIONFORMAT)
+DECL_WINELIB_TYPE_AW(LPDIACTIONFORMAT)
+DECL_WINELIB_TYPE_AW(LPCDIACTIONFORMAT)
+
+#define DIAFTS_NEWDEVICELOW	0xFFFFFFFF
+#define DIAFTS_NEWDEVICEHIGH	0xFFFFFFFF
+#define DIAFTS_UNUSEDDEVICELOW	0x00000000
+#define DIAFTS_UNUSEDDEVICEHIGH	0x00000000
+
+#define DIDBAM_DEFAULT		0x00000000
+#define DIDBAM_PRESERVE		0x00000001
+#define DIDBAM_INITIALIZE	0x00000002
+#define DIDBAM_HWDEFAULTS	0x00000004
+
+#define DIDSAM_DEFAULT		0x00000000
+#define DIDSAM_NOUSER		0x00000001
+#define DIDSAM_FORCESAVE	0x00000002
+
+#define DICD_DEFAULT		0x00000000
+#define DICD_EDIT		0x00000001
+
+#ifndef D3DCOLOR_DEFINED
+typedef DWORD D3DCOLOR;
+#define D3DCOLOR_DEFINED
+#endif
+
+typedef struct _DICOLORSET {
+	DWORD		dwSize;
+	D3DCOLOR	cTextFore;
+	D3DCOLOR	cTextHighlight;
+	D3DCOLOR	cCalloutLine;
+	D3DCOLOR	cCalloutHighlight;
+	D3DCOLOR	cBorder;
+	D3DCOLOR	cControlFill;
+	D3DCOLOR	cHighlightFill;
+	D3DCOLOR	cAreaFill;
+} DICOLORSET, *LPDICOLORSET;
+typedef const DICOLORSET *LPCDICOLORSET;
+
+typedef struct _DICONFIGUREDEVICESPARAMSA {
+	DWORD			dwSize;
+	DWORD			dwcUsers;
+	LPSTR			lptszUserNames;
+	DWORD			dwcFormats;
+	LPDIACTIONFORMATA	lprgFormats;
+	HWND			hwnd;
+	DICOLORSET		dics;
+	LPUNKNOWN		lpUnkDDSTarget;
+} DICONFIGUREDEVICESPARAMSA, *LPDICONFIGUREDEVICESPARAMSA;
+typedef const DICONFIGUREDEVICESPARAMSA *LPCDICONFIGUREDEVICESPARAMSA;
+
+typedef struct _DICONFIGUREDEVICESPARAMSW {
+	DWORD			dwSize;
+	DWORD			dwcUsers;
+	LPWSTR			lptszUserNames;
+	DWORD			dwcFormats;
+	LPDIACTIONFORMATW	lprgFormats;
+	HWND			hwnd;
+	DICOLORSET		dics;
+	LPUNKNOWN		lpUnkDDSTarget;
+} DICONFIGUREDEVICESPARAMSW, *LPDICONFIGUREDEVICESPARAMSW;
+typedef const DICONFIGUREDEVICESPARAMSW *LPCDICONFIGUREDEVICESPARAMSW;
+
+DECL_WINELIB_TYPE_AW(DICONFIGUREDEVICESPARAMS)
+DECL_WINELIB_TYPE_AW(LPDICONFIGUREDEVICESPARAMS)
+DECL_WINELIB_TYPE_AW(LPCDICONFIGUREDEVICESPARAMS)
+
+#define DIDIFT_CONFIGURATION	0x00000001
+#define DIDIFT_OVERLAY		0x00000002
+
+#define DIDAL_CENTERED		0x00000000
+#define DIDAL_LEFTALIGNED	0x00000001
+#define DIDAL_RIGHTALIGNED	0x00000002
+#define DIDAL_MIDDLE		0x00000000
+#define DIDAL_TOPALIGNED	0x00000004
+#define DIDAL_BOTTOMALIGNED	0x00000008
+
+typedef struct _DIDEVICEIMAGEINFOA {
+	CHAR	tszImagePath[MAX_PATH];
+	DWORD	dwFlags;
+	DWORD	dwViewID;
+	RECT	rcOverlay;
+	DWORD	dwObjID;
+	DWORD	dwcValidPts;
+	POINT	rgptCalloutLine[5];
+	RECT	rcCalloutRect;
+	DWORD	dwTextAlign;
+} DIDEVICEIMAGEINFOA, *LPDIDEVICEIMAGEINFOA;
+typedef const DIDEVICEIMAGEINFOA *LPCDIDEVICEIMAGEINFOA;
+
+typedef struct _DIDEVICEIMAGEINFOW {
+	WCHAR	tszImagePath[MAX_PATH];
+	DWORD	dwFlags;
+	DWORD	dwViewID;
+	RECT	rcOverlay;
+	DWORD	dwObjID;
+	DWORD	dwcValidPts;
+	POINT	rgptCalloutLine[5];
+	RECT	rcCalloutRect;
+	DWORD	dwTextAlign;
+} DIDEVICEIMAGEINFOW, *LPDIDEVICEIMAGEINFOW;
+typedef const DIDEVICEIMAGEINFOW *LPCDIDEVICEIMAGEINFOW;
+
+DECL_WINELIB_TYPE_AW(DIDEVICEIMAGEINFO)
+DECL_WINELIB_TYPE_AW(LPDIDEVICEIMAGEINFO)
+DECL_WINELIB_TYPE_AW(LPCDIDEVICEIMAGEINFO)
+
+typedef struct _DIDEVICEIMAGEINFOHEADERA {
+	DWORD	dwSize;
+	DWORD	dwSizeImageInfo;
+	DWORD	dwcViews;
+	DWORD	dwcButtons;
+	DWORD	dwcAxes;
+	DWORD	dwcPOVs;
+	DWORD	dwBufferSize;
+	DWORD	dwBufferUsed;
+	LPDIDEVICEIMAGEINFOA	lprgImageInfoArray;
+} DIDEVICEIMAGEINFOHEADERA, *LPDIDEVICEIMAGEINFOHEADERA;
+typedef const DIDEVICEIMAGEINFOHEADERA *LPCDIDEVICEIMAGEINFOHEADERA;
+
+typedef struct _DIDEVICEIMAGEINFOHEADERW {
+	DWORD	dwSize;
+	DWORD	dwSizeImageInfo;
+	DWORD	dwcViews;
+	DWORD	dwcButtons;
+	DWORD	dwcAxes;
+	DWORD	dwcPOVs;
+	DWORD	dwBufferSize;
+	DWORD	dwBufferUsed;
+	LPDIDEVICEIMAGEINFOW	lprgImageInfoArray;
+} DIDEVICEIMAGEINFOHEADERW, *LPDIDEVICEIMAGEINFOHEADERW;
+typedef const DIDEVICEIMAGEINFOHEADERW *LPCDIDEVICEIMAGEINFOHEADERW;
+
+DECL_WINELIB_TYPE_AW(DIDEVICEIMAGEINFOHEADER)
+DECL_WINELIB_TYPE_AW(LPDIDEVICEIMAGEINFOHEADER)
+DECL_WINELIB_TYPE_AW(LPCDIDEVICEIMAGEINFOHEADER)
+
+#endif /* DI8 */
+
+
+/*****************************************************************************
+ * IDirectInputEffect interface
+ */
+#if (DIRECTINPUT_VERSION >= 0x0500)
+#undef INTERFACE
+#define INTERFACE IDirectInputEffect
+DECLARE_INTERFACE_(IDirectInputEffect,IUnknown)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputEffect methods ***/
+    STDMETHOD(Initialize)(THIS_ HINSTANCE, DWORD, REFGUID) PURE;
+    STDMETHOD(GetEffectGuid)(THIS_ LPGUID) PURE;
+    STDMETHOD(GetParameters)(THIS_ LPDIEFFECT, DWORD) PURE;
+    STDMETHOD(SetParameters)(THIS_ LPCDIEFFECT, DWORD) PURE;
+    STDMETHOD(Start)(THIS_ DWORD, DWORD) PURE;
+    STDMETHOD(Stop)(THIS) PURE;
+    STDMETHOD(GetEffectStatus)(THIS_ LPDWORD) PURE;
+    STDMETHOD(Download)(THIS) PURE;
+    STDMETHOD(Unload)(THIS) PURE;
+    STDMETHOD(Escape)(THIS_ LPDIEFFESCAPE) PURE;
+};
+
+#if !defined(__cplusplus) || defined(CINTERFACE)
+/*** IUnknown methods ***/
+#define IDirectInputEffect_QueryInterface(p,a,b) (p)->lpVtbl->QueryInterface(p,a,b)
+#define IDirectInputEffect_AddRef(p)             (p)->lpVtbl->AddRef(p)
+#define IDirectInputEffect_Release(p)            (p)->lpVtbl->Release(p)
+/*** IDirectInputEffect methods ***/
+#define IDirectInputEffect_Initialize(p,a,b,c)    (p)->lpVtbl->Initialize(p,a,b,c)
+#define IDirectInputEffect_GetEffectGuid(p,a)     (p)->lpVtbl->GetEffectGuid(p,a)
+#define IDirectInputEffect_GetParameters(p,a,b)   (p)->lpVtbl->GetParameters(p,a,b)
+#define IDirectInputEffect_SetParameters(p,a,b)   (p)->lpVtbl->SetParameters(p,a,b)
+#define IDirectInputEffect_Start(p,a,b)           (p)->lpVtbl->Start(p,a,b)
+#define IDirectInputEffect_Stop(p)                (p)->lpVtbl->Stop(p)
+#define IDirectInputEffect_GetEffectStatus(p,a)   (p)->lpVtbl->GetEffectStatus(p,a)
+#define IDirectInputEffect_Download(p)            (p)->lpVtbl->Download(p)
+#define IDirectInputEffect_Unload(p)              (p)->lpVtbl->Unload(p)
+#define IDirectInputEffect_Escape(p,a)            (p)->lpVtbl->Escape(p,a)
+#else
+/*** IUnknown methods ***/
+#define IDirectInputEffect_QueryInterface(p,a,b) (p)->QueryInterface(a,b)
+#define IDirectInputEffect_AddRef(p)             (p)->AddRef()
+#define IDirectInputEffect_Release(p)            (p)->Release()
+/*** IDirectInputEffect methods ***/
+#define IDirectInputEffect_Initialize(p,a,b,c)    (p)->Initialize(a,b,c)
+#define IDirectInputEffect_GetEffectGuid(p,a)     (p)->GetEffectGuid(a)
+#define IDirectInputEffect_GetParameters(p,a,b)   (p)->GetParameters(a,b)
+#define IDirectInputEffect_SetParameters(p,a,b)   (p)->SetParameters(a,b)
+#define IDirectInputEffect_Start(p,a,b)           (p)->Start(a,b)
+#define IDirectInputEffect_Stop(p)                (p)->Stop()
+#define IDirectInputEffect_GetEffectStatus(p,a)   (p)->GetEffectStatus(a)
+#define IDirectInputEffect_Download(p)            (p)->Download()
+#define IDirectInputEffect_Unload(p)              (p)->Unload()
+#define IDirectInputEffect_Escape(p,a)            (p)->Escape(a)
+#endif
+
+#endif /* DI5 */
+
+
+/*****************************************************************************
+ * IDirectInputDeviceA interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInputDeviceA
+DECLARE_INTERFACE_(IDirectInputDeviceA,IUnknown)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputDeviceA methods ***/
+    STDMETHOD(GetCapabilities)(THIS_ LPDIDEVCAPS lpDIDevCaps) PURE;
+    STDMETHOD(EnumObjects)(THIS_ LPDIENUMDEVICEOBJECTSCALLBACKA lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetProperty)(THIS_ REFGUID rguidProp, LPDIPROPHEADER pdiph) PURE;
+    STDMETHOD(SetProperty)(THIS_ REFGUID rguidProp, LPCDIPROPHEADER pdiph) PURE;
+    STDMETHOD(Acquire)(THIS) PURE;
+    STDMETHOD(Unacquire)(THIS) PURE;
+    STDMETHOD(GetDeviceState)(THIS_ DWORD cbData, LPVOID lpvData) PURE;
+    STDMETHOD(GetDeviceData)(THIS_ DWORD cbObjectData, LPDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD dwFlags) PURE;
+    STDMETHOD(SetDataFormat)(THIS_ LPCDIDATAFORMAT lpdf) PURE;
+    STDMETHOD(SetEventNotification)(THIS_ HANDLE hEvent) PURE;
+    STDMETHOD(SetCooperativeLevel)(THIS_ HWND hwnd, DWORD dwFlags) PURE;
+    STDMETHOD(GetObjectInfo)(THIS_ LPDIDEVICEOBJECTINSTANCEA pdidoi, DWORD dwObj, DWORD dwHow) PURE;
+    STDMETHOD(GetDeviceInfo)(THIS_ LPDIDEVICEINSTANCEA pdidi) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion, REFGUID rguid) PURE;
+};
+
+/*****************************************************************************
+ * IDirectInputDeviceW interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInputDeviceW
+DECLARE_INTERFACE_(IDirectInputDeviceW,IUnknown)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputDeviceW methods ***/
+    STDMETHOD(GetCapabilities)(THIS_ LPDIDEVCAPS lpDIDevCaps) PURE;
+    STDMETHOD(EnumObjects)(THIS_ LPDIENUMDEVICEOBJECTSCALLBACKW lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetProperty)(THIS_ REFGUID rguidProp, LPDIPROPHEADER pdiph) PURE;
+    STDMETHOD(SetProperty)(THIS_ REFGUID rguidProp, LPCDIPROPHEADER pdiph) PURE;
+    STDMETHOD(Acquire)(THIS) PURE;
+    STDMETHOD(Unacquire)(THIS) PURE;
+    STDMETHOD(GetDeviceState)(THIS_ DWORD cbData, LPVOID lpvData) PURE;
+    STDMETHOD(GetDeviceData)(THIS_ DWORD cbObjectData, LPDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD dwFlags) PURE;
+    STDMETHOD(SetDataFormat)(THIS_ LPCDIDATAFORMAT lpdf) PURE;
+    STDMETHOD(SetEventNotification)(THIS_ HANDLE hEvent) PURE;
+    STDMETHOD(SetCooperativeLevel)(THIS_ HWND hwnd, DWORD dwFlags) PURE;
+    STDMETHOD(GetObjectInfo)(THIS_ LPDIDEVICEOBJECTINSTANCEW pdidoi, DWORD dwObj, DWORD dwHow) PURE;
+    STDMETHOD(GetDeviceInfo)(THIS_ LPDIDEVICEINSTANCEW pdidi) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion, REFGUID rguid) PURE;
+};
+
+#if !defined(__cplusplus) || defined(CINTERFACE)
+/*** IUnknown methods ***/
+#define IDirectInputDevice_QueryInterface(p,a,b) (p)->lpVtbl->QueryInterface(p,a,b)
+#define IDirectInputDevice_AddRef(p)             (p)->lpVtbl->AddRef(p)
+#define IDirectInputDevice_Release(p)            (p)->lpVtbl->Release(p)
+/*** IDirectInputDevice methods ***/
+#define IDirectInputDevice_GetCapabilities(p,a)       (p)->lpVtbl->GetCapabilities(p,a)
+#define IDirectInputDevice_EnumObjects(p,a,b,c)       (p)->lpVtbl->EnumObjects(p,a,b,c)
+#define IDirectInputDevice_GetProperty(p,a,b)         (p)->lpVtbl->GetProperty(p,a,b)
+#define IDirectInputDevice_SetProperty(p,a,b)         (p)->lpVtbl->SetProperty(p,a,b)
+#define IDirectInputDevice_Acquire(p)                 (p)->lpVtbl->Acquire(p)
+#define IDirectInputDevice_Unacquire(p)               (p)->lpVtbl->Unacquire(p)
+#define IDirectInputDevice_GetDeviceState(p,a,b)      (p)->lpVtbl->GetDeviceState(p,a,b)
+#define IDirectInputDevice_GetDeviceData(p,a,b,c,d)   (p)->lpVtbl->GetDeviceData(p,a,b,c,d)
+#define IDirectInputDevice_SetDataFormat(p,a)         (p)->lpVtbl->SetDataFormat(p,a)
+#define IDirectInputDevice_SetEventNotification(p,a)  (p)->lpVtbl->SetEventNotification(p,a)
+#define IDirectInputDevice_SetCooperativeLevel(p,a,b) (p)->lpVtbl->SetCooperativeLevel(p,a,b)
+#define IDirectInputDevice_GetObjectInfo(p,a,b,c)     (p)->lpVtbl->GetObjectInfo(p,a,b,c)
+#define IDirectInputDevice_GetDeviceInfo(p,a)         (p)->lpVtbl->GetDeviceInfo(p,a)
+#define IDirectInputDevice_RunControlPanel(p,a,b)     (p)->lpVtbl->RunControlPanel(p,a,b)
+#define IDirectInputDevice_Initialize(p,a,b,c)        (p)->lpVtbl->Initialize(p,a,b,c)
+#else
+/*** IUnknown methods ***/
+#define IDirectInputDevice_QueryInterface(p,a,b) (p)->QueryInterface(a,b)
+#define IDirectInputDevice_AddRef(p)             (p)->AddRef()
+#define IDirectInputDevice_Release(p)            (p)->Release()
+/*** IDirectInputDevice methods ***/
+#define IDirectInputDevice_GetCapabilities(p,a)       (p)->GetCapabilities(a)
+#define IDirectInputDevice_EnumObjects(p,a,b,c)       (p)->EnumObjects(a,b,c)
+#define IDirectInputDevice_GetProperty(p,a,b)         (p)->GetProperty(a,b)
+#define IDirectInputDevice_SetProperty(p,a,b)         (p)->SetProperty(a,b)
+#define IDirectInputDevice_Acquire(p)                 (p)->Acquire()
+#define IDirectInputDevice_Unacquire(p)               (p)->Unacquire()
+#define IDirectInputDevice_GetDeviceState(p,a,b)      (p)->GetDeviceState(a,b)
+#define IDirectInputDevice_GetDeviceData(p,a,b,c,d)   (p)->GetDeviceData(a,b,c,d)
+#define IDirectInputDevice_SetDataFormat(p,a)         (p)->SetDataFormat(a)
+#define IDirectInputDevice_SetEventNotification(p,a)  (p)->SetEventNotification(a)
+#define IDirectInputDevice_SetCooperativeLevel(p,a,b) (p)->SetCooperativeLevel(a,b)
+#define IDirectInputDevice_GetObjectInfo(p,a,b,c)     (p)->GetObjectInfo(a,b,c)
+#define IDirectInputDevice_GetDeviceInfo(p,a)         (p)->GetDeviceInfo(a)
+#define IDirectInputDevice_RunControlPanel(p,a,b)     (p)->RunControlPanel(a,b)
+#define IDirectInputDevice_Initialize(p,a,b,c)        (p)->Initialize(a,b,c)
+#endif
+
+
+#if (DIRECTINPUT_VERSION >= 0x0500)
+/*****************************************************************************
+ * IDirectInputDevice2A interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInputDevice2A
+DECLARE_INTERFACE_(IDirectInputDevice2A,IDirectInputDeviceA)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputDeviceA methods ***/
+    STDMETHOD(GetCapabilities)(THIS_ LPDIDEVCAPS lpDIDevCaps) PURE;
+    STDMETHOD(EnumObjects)(THIS_ LPDIENUMDEVICEOBJECTSCALLBACKA lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetProperty)(THIS_ REFGUID rguidProp, LPDIPROPHEADER pdiph) PURE;
+    STDMETHOD(SetProperty)(THIS_ REFGUID rguidProp, LPCDIPROPHEADER pdiph) PURE;
+    STDMETHOD(Acquire)(THIS) PURE;
+    STDMETHOD(Unacquire)(THIS) PURE;
+    STDMETHOD(GetDeviceState)(THIS_ DWORD cbData, LPVOID lpvData) PURE;
+    STDMETHOD(GetDeviceData)(THIS_ DWORD cbObjectData, LPDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD dwFlags) PURE;
+    STDMETHOD(SetDataFormat)(THIS_ LPCDIDATAFORMAT lpdf) PURE;
+    STDMETHOD(SetEventNotification)(THIS_ HANDLE hEvent) PURE;
+    STDMETHOD(SetCooperativeLevel)(THIS_ HWND hwnd, DWORD dwFlags) PURE;
+    STDMETHOD(GetObjectInfo)(THIS_ LPDIDEVICEOBJECTINSTANCEA pdidoi, DWORD dwObj, DWORD dwHow) PURE;
+    STDMETHOD(GetDeviceInfo)(THIS_ LPDIDEVICEINSTANCEA pdidi) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion, REFGUID rguid) PURE;
+    /*** IDirectInputDevice2A methods ***/
+    STDMETHOD(CreateEffect)(THIS_ REFGUID rguid, LPCDIEFFECT lpeff, LPDIRECTINPUTEFFECT *ppdeff, LPUNKNOWN punkOuter) PURE;
+    STDMETHOD(EnumEffects)(THIS_ LPDIENUMEFFECTSCALLBACKA lpCallback, LPVOID pvRef, DWORD dwEffType) PURE;
+    STDMETHOD(GetEffectInfo)(THIS_ LPDIEFFECTINFOA pdei, REFGUID rguid) PURE;
+    STDMETHOD(GetForceFeedbackState)(THIS_ LPDWORD pdwOut) PURE;
+    STDMETHOD(SendForceFeedbackCommand)(THIS_ DWORD dwFlags) PURE;
+    STDMETHOD(EnumCreatedEffectObjects)(THIS_ LPDIENUMCREATEDEFFECTOBJECTSCALLBACK lpCallback, LPVOID pvRef, DWORD fl) PURE;
+    STDMETHOD(Escape)(THIS_ LPDIEFFESCAPE pesc) PURE;
+    STDMETHOD(Poll)(THIS) PURE;
+    STDMETHOD(SendDeviceData)(THIS_ DWORD cbObjectData, LPCDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD fl) PURE;
+};
+
+/*****************************************************************************
+ * IDirectInputDevice2W interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInputDevice2W
+DECLARE_INTERFACE_(IDirectInputDevice2W,IDirectInputDeviceW)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputDeviceW methods ***/
+    STDMETHOD(GetCapabilities)(THIS_ LPDIDEVCAPS lpDIDevCaps) PURE;
+    STDMETHOD(EnumObjects)(THIS_ LPDIENUMDEVICEOBJECTSCALLBACKW lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetProperty)(THIS_ REFGUID rguidProp, LPDIPROPHEADER pdiph) PURE;
+    STDMETHOD(SetProperty)(THIS_ REFGUID rguidProp, LPCDIPROPHEADER pdiph) PURE;
+    STDMETHOD(Acquire)(THIS) PURE;
+    STDMETHOD(Unacquire)(THIS) PURE;
+    STDMETHOD(GetDeviceState)(THIS_ DWORD cbData, LPVOID lpvData) PURE;
+    STDMETHOD(GetDeviceData)(THIS_ DWORD cbObjectData, LPDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD dwFlags) PURE;
+    STDMETHOD(SetDataFormat)(THIS_ LPCDIDATAFORMAT lpdf) PURE;
+    STDMETHOD(SetEventNotification)(THIS_ HANDLE hEvent) PURE;
+    STDMETHOD(SetCooperativeLevel)(THIS_ HWND hwnd, DWORD dwFlags) PURE;
+    STDMETHOD(GetObjectInfo)(THIS_ LPDIDEVICEOBJECTINSTANCEW pdidoi, DWORD dwObj, DWORD dwHow) PURE;
+    STDMETHOD(GetDeviceInfo)(THIS_ LPDIDEVICEINSTANCEW pdidi) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion, REFGUID rguid) PURE;
+    /*** IDirectInputDevice2W methods ***/
+    STDMETHOD(CreateEffect)(THIS_ REFGUID rguid, LPCDIEFFECT lpeff, LPDIRECTINPUTEFFECT *ppdeff, LPUNKNOWN punkOuter) PURE;
+    STDMETHOD(EnumEffects)(THIS_ LPDIENUMEFFECTSCALLBACKW lpCallback, LPVOID pvRef, DWORD dwEffType) PURE;
+    STDMETHOD(GetEffectInfo)(THIS_ LPDIEFFECTINFOW pdei, REFGUID rguid) PURE;
+    STDMETHOD(GetForceFeedbackState)(THIS_ LPDWORD pdwOut) PURE;
+    STDMETHOD(SendForceFeedbackCommand)(THIS_ DWORD dwFlags) PURE;
+    STDMETHOD(EnumCreatedEffectObjects)(THIS_ LPDIENUMCREATEDEFFECTOBJECTSCALLBACK lpCallback, LPVOID pvRef, DWORD fl) PURE;
+    STDMETHOD(Escape)(THIS_ LPDIEFFESCAPE pesc) PURE;
+    STDMETHOD(Poll)(THIS) PURE;
+    STDMETHOD(SendDeviceData)(THIS_ DWORD cbObjectData, LPCDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD fl) PURE;
+};
+
+#if !defined(__cplusplus) || defined(CINTERFACE)
+/*** IUnknown methods ***/
+#define IDirectInputDevice2_QueryInterface(p,a,b) (p)->lpVtbl->QueryInterface(p,a,b)
+#define IDirectInputDevice2_AddRef(p)             (p)->lpVtbl->AddRef(p)
+#define IDirectInputDevice2_Release(p)            (p)->lpVtbl->Release(p)
+/*** IDirectInputDevice methods ***/
+#define IDirectInputDevice2_GetCapabilities(p,a)       (p)->lpVtbl->GetCapabilities(p,a)
+#define IDirectInputDevice2_EnumObjects(p,a,b,c)       (p)->lpVtbl->EnumObjects(p,a,b,c)
+#define IDirectInputDevice2_GetProperty(p,a,b)         (p)->lpVtbl->GetProperty(p,a,b)
+#define IDirectInputDevice2_SetProperty(p,a,b)         (p)->lpVtbl->SetProperty(p,a,b)
+#define IDirectInputDevice2_Acquire(p)                 (p)->lpVtbl->Acquire(p)
+#define IDirectInputDevice2_Unacquire(p)               (p)->lpVtbl->Unacquire(p)
+#define IDirectInputDevice2_GetDeviceState(p,a,b)      (p)->lpVtbl->GetDeviceState(p,a,b)
+#define IDirectInputDevice2_GetDeviceData(p,a,b,c,d)   (p)->lpVtbl->GetDeviceData(p,a,b,c,d)
+#define IDirectInputDevice2_SetDataFormat(p,a)         (p)->lpVtbl->SetDataFormat(p,a)
+#define IDirectInputDevice2_SetEventNotification(p,a)  (p)->lpVtbl->SetEventNotification(p,a)
+#define IDirectInputDevice2_SetCooperativeLevel(p,a,b) (p)->lpVtbl->SetCooperativeLevel(p,a,b)
+#define IDirectInputDevice2_GetObjectInfo(p,a,b,c)     (p)->lpVtbl->GetObjectInfo(p,a,b,c)
+#define IDirectInputDevice2_GetDeviceInfo(p,a)         (p)->lpVtbl->GetDeviceInfo(p,a)
+#define IDirectInputDevice2_RunControlPanel(p,a,b)     (p)->lpVtbl->RunControlPanel(p,a,b)
+#define IDirectInputDevice2_Initialize(p,a,b,c)        (p)->lpVtbl->Initialize(p,a,b,c)
+/*** IDirectInputDevice2 methods ***/
+#define IDirectInputDevice2_CreateEffect(p,a,b,c,d)           (p)->lpVtbl->CreateEffect(p,a,b,c,d)
+#define IDirectInputDevice2_EnumEffects(p,a,b,c)              (p)->lpVtbl->EnumEffects(p,a,b,c)
+#define IDirectInputDevice2_GetEffectInfo(p,a,b)              (p)->lpVtbl->GetEffectInfo(p,a,b)
+#define IDirectInputDevice2_GetForceFeedbackState(p,a)        (p)->lpVtbl->GetForceFeedbackState(p,a)
+#define IDirectInputDevice2_SendForceFeedbackCommand(p,a)     (p)->lpVtbl->SendForceFeedbackCommand(p,a)
+#define IDirectInputDevice2_EnumCreatedEffectObjects(p,a,b,c) (p)->lpVtbl->EnumCreatedEffectObjects(p,a,b,c)
+#define IDirectInputDevice2_Escape(p,a)                       (p)->lpVtbl->Escape(p,a)
+#define IDirectInputDevice2_Poll(p)                           (p)->lpVtbl->Poll(p)
+#define IDirectInputDevice2_SendDeviceData(p,a,b,c,d)         (p)->lpVtbl->SendDeviceData(p,a,b,c,d)
+#else
+/*** IUnknown methods ***/
+#define IDirectInputDevice2_QueryInterface(p,a,b) (p)->QueryInterface(a,b)
+#define IDirectInputDevice2_AddRef(p)             (p)->AddRef()
+#define IDirectInputDevice2_Release(p)            (p)->Release()
+/*** IDirectInputDevice methods ***/
+#define IDirectInputDevice2_GetCapabilities(p,a)       (p)->GetCapabilities(a)
+#define IDirectInputDevice2_EnumObjects(p,a,b,c)       (p)->EnumObjects(a,b,c)
+#define IDirectInputDevice2_GetProperty(p,a,b)         (p)->GetProperty(a,b)
+#define IDirectInputDevice2_SetProperty(p,a,b)         (p)->SetProperty(a,b)
+#define IDirectInputDevice2_Acquire(p)                 (p)->Acquire()
+#define IDirectInputDevice2_Unacquire(p)               (p)->Unacquire()
+#define IDirectInputDevice2_GetDeviceState(p,a,b)      (p)->GetDeviceState(a,b)
+#define IDirectInputDevice2_GetDeviceData(p,a,b,c,d)   (p)->GetDeviceData(a,b,c,d)
+#define IDirectInputDevice2_SetDataFormat(p,a)         (p)->SetDataFormat(a)
+#define IDirectInputDevice2_SetEventNotification(p,a)  (p)->SetEventNotification(a)
+#define IDirectInputDevice2_SetCooperativeLevel(p,a,b) (p)->SetCooperativeLevel(a,b)
+#define IDirectInputDevice2_GetObjectInfo(p,a,b,c)     (p)->GetObjectInfo(a,b,c)
+#define IDirectInputDevice2_GetDeviceInfo(p,a)         (p)->GetDeviceInfo(a)
+#define IDirectInputDevice2_RunControlPanel(p,a,b)     (p)->RunControlPanel(a,b)
+#define IDirectInputDevice2_Initialize(p,a,b,c)        (p)->Initialize(a,b,c)
+/*** IDirectInputDevice2 methods ***/
+#define IDirectInputDevice2_CreateEffect(p,a,b,c,d)           (p)->CreateEffect(a,b,c,d)
+#define IDirectInputDevice2_EnumEffects(p,a,b,c)              (p)->EnumEffects(a,b,c)
+#define IDirectInputDevice2_GetEffectInfo(p,a,b)              (p)->GetEffectInfo(a,b)
+#define IDirectInputDevice2_GetForceFeedbackState(p,a)        (p)->GetForceFeedbackState(a)
+#define IDirectInputDevice2_SendForceFeedbackCommand(p,a)     (p)->SendForceFeedbackCommand(a)
+#define IDirectInputDevice2_EnumCreatedEffectObjects(p,a,b,c) (p)->EnumCreatedEffectObjects(a,b,c)
+#define IDirectInputDevice2_Escape(p,a)                       (p)->Escape(a)
+#define IDirectInputDevice2_Poll(p)                           (p)->Poll()
+#define IDirectInputDevice2_SendDeviceData(p,a,b,c,d)         (p)->SendDeviceData(a,b,c,d)
+#endif
+#endif /* DI5 */
+
+#if DIRECTINPUT_VERSION >= 0x0700
+/*****************************************************************************
+ * IDirectInputDevice7A interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInputDevice7A
+DECLARE_INTERFACE_(IDirectInputDevice7A,IDirectInputDevice2A)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputDeviceA methods ***/
+    STDMETHOD(GetCapabilities)(THIS_ LPDIDEVCAPS lpDIDevCaps) PURE;
+    STDMETHOD(EnumObjects)(THIS_ LPDIENUMDEVICEOBJECTSCALLBACKA lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetProperty)(THIS_ REFGUID rguidProp, LPDIPROPHEADER pdiph) PURE;
+    STDMETHOD(SetProperty)(THIS_ REFGUID rguidProp, LPCDIPROPHEADER pdiph) PURE;
+    STDMETHOD(Acquire)(THIS) PURE;
+    STDMETHOD(Unacquire)(THIS) PURE;
+    STDMETHOD(GetDeviceState)(THIS_ DWORD cbData, LPVOID lpvData) PURE;
+    STDMETHOD(GetDeviceData)(THIS_ DWORD cbObjectData, LPDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD dwFlags) PURE;
+    STDMETHOD(SetDataFormat)(THIS_ LPCDIDATAFORMAT lpdf) PURE;
+    STDMETHOD(SetEventNotification)(THIS_ HANDLE hEvent) PURE;
+    STDMETHOD(SetCooperativeLevel)(THIS_ HWND hwnd, DWORD dwFlags) PURE;
+    STDMETHOD(GetObjectInfo)(THIS_ LPDIDEVICEOBJECTINSTANCEA pdidoi, DWORD dwObj, DWORD dwHow) PURE;
+    STDMETHOD(GetDeviceInfo)(THIS_ LPDIDEVICEINSTANCEA pdidi) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion, REFGUID rguid) PURE;
+    /*** IDirectInputDevice2A methods ***/
+    STDMETHOD(CreateEffect)(THIS_ REFGUID rguid, LPCDIEFFECT lpeff, LPDIRECTINPUTEFFECT *ppdeff, LPUNKNOWN punkOuter) PURE;
+    STDMETHOD(EnumEffects)(THIS_ LPDIENUMEFFECTSCALLBACKA lpCallback, LPVOID pvRef, DWORD dwEffType) PURE;
+    STDMETHOD(GetEffectInfo)(THIS_ LPDIEFFECTINFOA pdei, REFGUID rguid) PURE;
+    STDMETHOD(GetForceFeedbackState)(THIS_ LPDWORD pdwOut) PURE;
+    STDMETHOD(SendForceFeedbackCommand)(THIS_ DWORD dwFlags) PURE;
+    STDMETHOD(EnumCreatedEffectObjects)(THIS_ LPDIENUMCREATEDEFFECTOBJECTSCALLBACK lpCallback, LPVOID pvRef, DWORD fl) PURE;
+    STDMETHOD(Escape)(THIS_ LPDIEFFESCAPE pesc) PURE;
+    STDMETHOD(Poll)(THIS) PURE;
+    STDMETHOD(SendDeviceData)(THIS_ DWORD cbObjectData, LPCDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD fl) PURE;
+    /*** IDirectInputDevice7A methods ***/
+    STDMETHOD(EnumEffectsInFile)(THIS_ LPCSTR lpszFileName,LPDIENUMEFFECTSINFILECALLBACK pec,LPVOID pvRef,DWORD dwFlags) PURE;
+    STDMETHOD(WriteEffectToFile)(THIS_ LPCSTR lpszFileName,DWORD dwEntries,LPDIFILEEFFECT rgDiFileEft,DWORD dwFlags) PURE;
+};
+
+/*****************************************************************************
+ * IDirectInputDevice7W interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInputDevice7W
+DECLARE_INTERFACE_(IDirectInputDevice7W,IDirectInputDevice2W)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputDeviceW methods ***/
+    STDMETHOD(GetCapabilities)(THIS_ LPDIDEVCAPS lpDIDevCaps) PURE;
+    STDMETHOD(EnumObjects)(THIS_ LPDIENUMDEVICEOBJECTSCALLBACKW lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetProperty)(THIS_ REFGUID rguidProp, LPDIPROPHEADER pdiph) PURE;
+    STDMETHOD(SetProperty)(THIS_ REFGUID rguidProp, LPCDIPROPHEADER pdiph) PURE;
+    STDMETHOD(Acquire)(THIS) PURE;
+    STDMETHOD(Unacquire)(THIS) PURE;
+    STDMETHOD(GetDeviceState)(THIS_ DWORD cbData, LPVOID lpvData) PURE;
+    STDMETHOD(GetDeviceData)(THIS_ DWORD cbObjectData, LPDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD dwFlags) PURE;
+    STDMETHOD(SetDataFormat)(THIS_ LPCDIDATAFORMAT lpdf) PURE;
+    STDMETHOD(SetEventNotification)(THIS_ HANDLE hEvent) PURE;
+    STDMETHOD(SetCooperativeLevel)(THIS_ HWND hwnd, DWORD dwFlags) PURE;
+    STDMETHOD(GetObjectInfo)(THIS_ LPDIDEVICEOBJECTINSTANCEW pdidoi, DWORD dwObj, DWORD dwHow) PURE;
+    STDMETHOD(GetDeviceInfo)(THIS_ LPDIDEVICEINSTANCEW pdidi) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion, REFGUID rguid) PURE;
+    /*** IDirectInputDevice2W methods ***/
+    STDMETHOD(CreateEffect)(THIS_ REFGUID rguid, LPCDIEFFECT lpeff, LPDIRECTINPUTEFFECT *ppdeff, LPUNKNOWN punkOuter) PURE;
+    STDMETHOD(EnumEffects)(THIS_ LPDIENUMEFFECTSCALLBACKW lpCallback, LPVOID pvRef, DWORD dwEffType) PURE;
+    STDMETHOD(GetEffectInfo)(THIS_ LPDIEFFECTINFOW pdei, REFGUID rguid) PURE;
+    STDMETHOD(GetForceFeedbackState)(THIS_ LPDWORD pdwOut) PURE;
+    STDMETHOD(SendForceFeedbackCommand)(THIS_ DWORD dwFlags) PURE;
+    STDMETHOD(EnumCreatedEffectObjects)(THIS_ LPDIENUMCREATEDEFFECTOBJECTSCALLBACK lpCallback, LPVOID pvRef, DWORD fl) PURE;
+    STDMETHOD(Escape)(THIS_ LPDIEFFESCAPE pesc) PURE;
+    STDMETHOD(Poll)(THIS) PURE;
+    STDMETHOD(SendDeviceData)(THIS_ DWORD cbObjectData, LPCDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD fl) PURE;
+    /*** IDirectInputDevice7W methods ***/
+    STDMETHOD(EnumEffectsInFile)(THIS_ LPCWSTR lpszFileName,LPDIENUMEFFECTSINFILECALLBACK pec,LPVOID pvRef,DWORD dwFlags) PURE;
+    STDMETHOD(WriteEffectToFile)(THIS_ LPCWSTR lpszFileName,DWORD dwEntries,LPDIFILEEFFECT rgDiFileEft,DWORD dwFlags) PURE;
+};
+
+#if !defined(__cplusplus) || defined(CINTERFACE)
+/*** IUnknown methods ***/
+#define IDirectInputDevice7_QueryInterface(p,a,b) (p)->lpVtbl->QueryInterface(p,a,b)
+#define IDirectInputDevice7_AddRef(p)             (p)->lpVtbl->AddRef(p)
+#define IDirectInputDevice7_Release(p)            (p)->lpVtbl->Release(p)
+/*** IDirectInputDevice methods ***/
+#define IDirectInputDevice7_GetCapabilities(p,a)       (p)->lpVtbl->GetCapabilities(p,a)
+#define IDirectInputDevice7_EnumObjects(p,a,b,c)       (p)->lpVtbl->EnumObjects(p,a,b,c)
+#define IDirectInputDevice7_GetProperty(p,a,b)         (p)->lpVtbl->GetProperty(p,a,b)
+#define IDirectInputDevice7_SetProperty(p,a,b)         (p)->lpVtbl->SetProperty(p,a,b)
+#define IDirectInputDevice7_Acquire(p)                 (p)->lpVtbl->Acquire(p)
+#define IDirectInputDevice7_Unacquire(p)               (p)->lpVtbl->Unacquire(p)
+#define IDirectInputDevice7_GetDeviceState(p,a,b)      (p)->lpVtbl->GetDeviceState(p,a,b)
+#define IDirectInputDevice7_GetDeviceData(p,a,b,c,d)   (p)->lpVtbl->GetDeviceData(p,a,b,c,d)
+#define IDirectInputDevice7_SetDataFormat(p,a)         (p)->lpVtbl->SetDataFormat(p,a)
+#define IDirectInputDevice7_SetEventNotification(p,a)  (p)->lpVtbl->SetEventNotification(p,a)
+#define IDirectInputDevice7_SetCooperativeLevel(p,a,b) (p)->lpVtbl->SetCooperativeLevel(p,a,b)
+#define IDirectInputDevice7_GetObjectInfo(p,a,b,c)     (p)->lpVtbl->GetObjectInfo(p,a,b,c)
+#define IDirectInputDevice7_GetDeviceInfo(p,a)         (p)->lpVtbl->GetDeviceInfo(p,a)
+#define IDirectInputDevice7_RunControlPanel(p,a,b)     (p)->lpVtbl->RunControlPanel(p,a,b)
+#define IDirectInputDevice7_Initialize(p,a,b,c)        (p)->lpVtbl->Initialize(p,a,b,c)
+/*** IDirectInputDevice2 methods ***/
+#define IDirectInputDevice7_CreateEffect(p,a,b,c,d)           (p)->lpVtbl->CreateEffect(p,a,b,c,d)
+#define IDirectInputDevice7_EnumEffects(p,a,b,c)              (p)->lpVtbl->EnumEffects(p,a,b,c)
+#define IDirectInputDevice7_GetEffectInfo(p,a,b)              (p)->lpVtbl->GetEffectInfo(p,a,b)
+#define IDirectInputDevice7_GetForceFeedbackState(p,a)        (p)->lpVtbl->GetForceFeedbackState(p,a)
+#define IDirectInputDevice7_SendForceFeedbackCommand(p,a)     (p)->lpVtbl->SendForceFeedbackCommand(p,a)
+#define IDirectInputDevice7_EnumCreatedEffectObjects(p,a,b,c) (p)->lpVtbl->EnumCreatedEffectObjects(p,a,b,c)
+#define IDirectInputDevice7_Escape(p,a)                       (p)->lpVtbl->Escape(p,a)
+#define IDirectInputDevice7_Poll(p)                           (p)->lpVtbl->Poll(p)
+#define IDirectInputDevice7_SendDeviceData(p,a,b,c,d)         (p)->lpVtbl->SendDeviceData(p,a,b,c,d)
+/*** IDirectInputDevice7 methods ***/
+#define IDirectInputDevice7_EnumEffectsInFile(p,a,b,c,d) (p)->lpVtbl->EnumEffectsInFile(p,a,b,c,d)
+#define IDirectInputDevice7_WriteEffectToFile(p,a,b,c,d) (p)->lpVtbl->WriteEffectToFile(p,a,b,c,d)
+#else
+/*** IUnknown methods ***/
+#define IDirectInputDevice7_QueryInterface(p,a,b) (p)->QueryInterface(a,b)
+#define IDirectInputDevice7_AddRef(p)             (p)->AddRef()
+#define IDirectInputDevice7_Release(p)            (p)->Release()
+/*** IDirectInputDevice methods ***/
+#define IDirectInputDevice7_GetCapabilities(p,a)       (p)->GetCapabilities(a)
+#define IDirectInputDevice7_EnumObjects(p,a,b,c)       (p)->EnumObjects(a,b,c)
+#define IDirectInputDevice7_GetProperty(p,a,b)         (p)->GetProperty(a,b)
+#define IDirectInputDevice7_SetProperty(p,a,b)         (p)->SetProperty(a,b)
+#define IDirectInputDevice7_Acquire(p)                 (p)->Acquire()
+#define IDirectInputDevice7_Unacquire(p)               (p)->Unacquire()
+#define IDirectInputDevice7_GetDeviceState(p,a,b)      (p)->GetDeviceState(a,b)
+#define IDirectInputDevice7_GetDeviceData(p,a,b,c,d)   (p)->GetDeviceData(a,b,c,d)
+#define IDirectInputDevice7_SetDataFormat(p,a)         (p)->SetDataFormat(a)
+#define IDirectInputDevice7_SetEventNotification(p,a)  (p)->SetEventNotification(a)
+#define IDirectInputDevice7_SetCooperativeLevel(p,a,b) (p)->SetCooperativeLevel(a,b)
+#define IDirectInputDevice7_GetObjectInfo(p,a,b,c)     (p)->GetObjectInfo(a,b,c)
+#define IDirectInputDevice7_GetDeviceInfo(p,a)         (p)->GetDeviceInfo(a)
+#define IDirectInputDevice7_RunControlPanel(p,a,b)     (p)->RunControlPanel(a,b)
+#define IDirectInputDevice7_Initialize(p,a,b,c)        (p)->Initialize(a,b,c)
+/*** IDirectInputDevice2 methods ***/
+#define IDirectInputDevice7_CreateEffect(p,a,b,c,d)           (p)->CreateEffect(a,b,c,d)
+#define IDirectInputDevice7_EnumEffects(p,a,b,c)              (p)->EnumEffects(a,b,c)
+#define IDirectInputDevice7_GetEffectInfo(p,a,b)              (p)->GetEffectInfo(a,b)
+#define IDirectInputDevice7_GetForceFeedbackState(p,a)        (p)->GetForceFeedbackState(a)
+#define IDirectInputDevice7_SendForceFeedbackCommand(p,a)     (p)->SendForceFeedbackCommand(a)
+#define IDirectInputDevice7_EnumCreatedEffectObjects(p,a,b,c) (p)->EnumCreatedEffectObjects(a,b,c)
+#define IDirectInputDevice7_Escape(p,a)                       (p)->Escape(a)
+#define IDirectInputDevice7_Poll(p)                           (p)->Poll()
+#define IDirectInputDevice7_SendDeviceData(p,a,b,c,d)         (p)->SendDeviceData(a,b,c,d)
+/*** IDirectInputDevice7 methods ***/
+#define IDirectInputDevice7_EnumEffectsInFile(p,a,b,c,d) (p)->EnumEffectsInFile(a,b,c,d)
+#define IDirectInputDevice7_WriteEffectToFile(p,a,b,c,d) (p)->WriteEffectToFile(a,b,c,d)
+#endif
+
+#endif /* DI7 */
+
+#if DIRECTINPUT_VERSION >= 0x0800
+/*****************************************************************************
+ * IDirectInputDevice8A interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInputDevice8A
+DECLARE_INTERFACE_(IDirectInputDevice8A,IDirectInputDevice7A)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputDeviceA methods ***/
+    STDMETHOD(GetCapabilities)(THIS_ LPDIDEVCAPS lpDIDevCaps) PURE;
+    STDMETHOD(EnumObjects)(THIS_ LPDIENUMDEVICEOBJECTSCALLBACKA lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetProperty)(THIS_ REFGUID rguidProp, LPDIPROPHEADER pdiph) PURE;
+    STDMETHOD(SetProperty)(THIS_ REFGUID rguidProp, LPCDIPROPHEADER pdiph) PURE;
+    STDMETHOD(Acquire)(THIS) PURE;
+    STDMETHOD(Unacquire)(THIS) PURE;
+    STDMETHOD(GetDeviceState)(THIS_ DWORD cbData, LPVOID lpvData) PURE;
+    STDMETHOD(GetDeviceData)(THIS_ DWORD cbObjectData, LPDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD dwFlags) PURE;
+    STDMETHOD(SetDataFormat)(THIS_ LPCDIDATAFORMAT lpdf) PURE;
+    STDMETHOD(SetEventNotification)(THIS_ HANDLE hEvent) PURE;
+    STDMETHOD(SetCooperativeLevel)(THIS_ HWND hwnd, DWORD dwFlags) PURE;
+    STDMETHOD(GetObjectInfo)(THIS_ LPDIDEVICEOBJECTINSTANCEA pdidoi, DWORD dwObj, DWORD dwHow) PURE;
+    STDMETHOD(GetDeviceInfo)(THIS_ LPDIDEVICEINSTANCEA pdidi) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion, REFGUID rguid) PURE;
+    /*** IDirectInputDevice2A methods ***/
+    STDMETHOD(CreateEffect)(THIS_ REFGUID rguid, LPCDIEFFECT lpeff, LPDIRECTINPUTEFFECT *ppdeff, LPUNKNOWN punkOuter) PURE;
+    STDMETHOD(EnumEffects)(THIS_ LPDIENUMEFFECTSCALLBACKA lpCallback, LPVOID pvRef, DWORD dwEffType) PURE;
+    STDMETHOD(GetEffectInfo)(THIS_ LPDIEFFECTINFOA pdei, REFGUID rguid) PURE;
+    STDMETHOD(GetForceFeedbackState)(THIS_ LPDWORD pdwOut) PURE;
+    STDMETHOD(SendForceFeedbackCommand)(THIS_ DWORD dwFlags) PURE;
+    STDMETHOD(EnumCreatedEffectObjects)(THIS_ LPDIENUMCREATEDEFFECTOBJECTSCALLBACK lpCallback, LPVOID pvRef, DWORD fl) PURE;
+    STDMETHOD(Escape)(THIS_ LPDIEFFESCAPE pesc) PURE;
+    STDMETHOD(Poll)(THIS) PURE;
+    STDMETHOD(SendDeviceData)(THIS_ DWORD cbObjectData, LPCDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD fl) PURE;
+    /*** IDirectInputDevice7A methods ***/
+    STDMETHOD(EnumEffectsInFile)(THIS_ LPCSTR lpszFileName,LPDIENUMEFFECTSINFILECALLBACK pec,LPVOID pvRef,DWORD dwFlags) PURE;
+    STDMETHOD(WriteEffectToFile)(THIS_ LPCSTR lpszFileName,DWORD dwEntries,LPDIFILEEFFECT rgDiFileEft,DWORD dwFlags) PURE;
+    /*** IDirectInputDevice8A methods ***/
+    STDMETHOD(BuildActionMap)(THIS_ LPDIACTIONFORMATA lpdiaf, LPCSTR lpszUserName, DWORD dwFlags) PURE;
+    STDMETHOD(SetActionMap)(THIS_ LPDIACTIONFORMATA lpdiaf, LPCSTR lpszUserName, DWORD dwFlags) PURE;
+    STDMETHOD(GetImageInfo)(THIS_ LPDIDEVICEIMAGEINFOHEADERA lpdiDevImageInfoHeader) PURE;
+};
+
+/*****************************************************************************
+ * IDirectInputDevice8W interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInputDevice8W
+DECLARE_INTERFACE_(IDirectInputDevice8W,IDirectInputDevice7W)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputDeviceW methods ***/
+    STDMETHOD(GetCapabilities)(THIS_ LPDIDEVCAPS lpDIDevCaps) PURE;
+    STDMETHOD(EnumObjects)(THIS_ LPDIENUMDEVICEOBJECTSCALLBACKW lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetProperty)(THIS_ REFGUID rguidProp, LPDIPROPHEADER pdiph) PURE;
+    STDMETHOD(SetProperty)(THIS_ REFGUID rguidProp, LPCDIPROPHEADER pdiph) PURE;
+    STDMETHOD(Acquire)(THIS) PURE;
+    STDMETHOD(Unacquire)(THIS) PURE;
+    STDMETHOD(GetDeviceState)(THIS_ DWORD cbData, LPVOID lpvData) PURE;
+    STDMETHOD(GetDeviceData)(THIS_ DWORD cbObjectData, LPDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD dwFlags) PURE;
+    STDMETHOD(SetDataFormat)(THIS_ LPCDIDATAFORMAT lpdf) PURE;
+    STDMETHOD(SetEventNotification)(THIS_ HANDLE hEvent) PURE;
+    STDMETHOD(SetCooperativeLevel)(THIS_ HWND hwnd, DWORD dwFlags) PURE;
+    STDMETHOD(GetObjectInfo)(THIS_ LPDIDEVICEOBJECTINSTANCEW pdidoi, DWORD dwObj, DWORD dwHow) PURE;
+    STDMETHOD(GetDeviceInfo)(THIS_ LPDIDEVICEINSTANCEW pdidi) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion, REFGUID rguid) PURE;
+    /*** IDirectInputDevice2W methods ***/
+    STDMETHOD(CreateEffect)(THIS_ REFGUID rguid, LPCDIEFFECT lpeff, LPDIRECTINPUTEFFECT *ppdeff, LPUNKNOWN punkOuter) PURE;
+    STDMETHOD(EnumEffects)(THIS_ LPDIENUMEFFECTSCALLBACKW lpCallback, LPVOID pvRef, DWORD dwEffType) PURE;
+    STDMETHOD(GetEffectInfo)(THIS_ LPDIEFFECTINFOW pdei, REFGUID rguid) PURE;
+    STDMETHOD(GetForceFeedbackState)(THIS_ LPDWORD pdwOut) PURE;
+    STDMETHOD(SendForceFeedbackCommand)(THIS_ DWORD dwFlags) PURE;
+    STDMETHOD(EnumCreatedEffectObjects)(THIS_ LPDIENUMCREATEDEFFECTOBJECTSCALLBACK lpCallback, LPVOID pvRef, DWORD fl) PURE;
+    STDMETHOD(Escape)(THIS_ LPDIEFFESCAPE pesc) PURE;
+    STDMETHOD(Poll)(THIS) PURE;
+    STDMETHOD(SendDeviceData)(THIS_ DWORD cbObjectData, LPCDIDEVICEOBJECTDATA rgdod, LPDWORD pdwInOut, DWORD fl) PURE;
+    /*** IDirectInputDevice7W methods ***/
+    STDMETHOD(EnumEffectsInFile)(THIS_ LPCWSTR lpszFileName,LPDIENUMEFFECTSINFILECALLBACK pec,LPVOID pvRef,DWORD dwFlags) PURE;
+    STDMETHOD(WriteEffectToFile)(THIS_ LPCWSTR lpszFileName,DWORD dwEntries,LPDIFILEEFFECT rgDiFileEft,DWORD dwFlags) PURE;
+    /*** IDirectInputDevice8W methods ***/
+    STDMETHOD(BuildActionMap)(THIS_ LPDIACTIONFORMATW lpdiaf, LPCWSTR lpszUserName, DWORD dwFlags) PURE;
+    STDMETHOD(SetActionMap)(THIS_ LPDIACTIONFORMATW lpdiaf, LPCWSTR lpszUserName, DWORD dwFlags) PURE;
+    STDMETHOD(GetImageInfo)(THIS_ LPDIDEVICEIMAGEINFOHEADERW lpdiDevImageInfoHeader) PURE;
+};
+
+#if !defined(__cplusplus) || defined(CINTERFACE)
+/*** IUnknown methods ***/
+#define IDirectInputDevice8_QueryInterface(p,a,b) (p)->lpVtbl->QueryInterface(p,a,b)
+#define IDirectInputDevice8_AddRef(p)             (p)->lpVtbl->AddRef(p)
+#define IDirectInputDevice8_Release(p)            (p)->lpVtbl->Release(p)
+/*** IDirectInputDevice methods ***/
+#define IDirectInputDevice8_GetCapabilities(p,a)       (p)->lpVtbl->GetCapabilities(p,a)
+#define IDirectInputDevice8_EnumObjects(p,a,b,c)       (p)->lpVtbl->EnumObjects(p,a,b,c)
+#define IDirectInputDevice8_GetProperty(p,a,b)         (p)->lpVtbl->GetProperty(p,a,b)
+#define IDirectInputDevice8_SetProperty(p,a,b)         (p)->lpVtbl->SetProperty(p,a,b)
+#define IDirectInputDevice8_Acquire(p)                 (p)->lpVtbl->Acquire(p)
+#define IDirectInputDevice8_Unacquire(p)               (p)->lpVtbl->Unacquire(p)
+#define IDirectInputDevice8_GetDeviceState(p,a,b)      (p)->lpVtbl->GetDeviceState(p,a,b)
+#define IDirectInputDevice8_GetDeviceData(p,a,b,c,d)   (p)->lpVtbl->GetDeviceData(p,a,b,c,d)
+#define IDirectInputDevice8_SetDataFormat(p,a)         (p)->lpVtbl->SetDataFormat(p,a)
+#define IDirectInputDevice8_SetEventNotification(p,a)  (p)->lpVtbl->SetEventNotification(p,a)
+#define IDirectInputDevice8_SetCooperativeLevel(p,a,b) (p)->lpVtbl->SetCooperativeLevel(p,a,b)
+#define IDirectInputDevice8_GetObjectInfo(p,a,b,c)     (p)->lpVtbl->GetObjectInfo(p,a,b,c)
+#define IDirectInputDevice8_GetDeviceInfo(p,a)         (p)->lpVtbl->GetDeviceInfo(p,a)
+#define IDirectInputDevice8_RunControlPanel(p,a,b)     (p)->lpVtbl->RunControlPanel(p,a,b)
+#define IDirectInputDevice8_Initialize(p,a,b,c)        (p)->lpVtbl->Initialize(p,a,b,c)
+/*** IDirectInputDevice2 methods ***/
+#define IDirectInputDevice8_CreateEffect(p,a,b,c,d)           (p)->lpVtbl->CreateEffect(p,a,b,c,d)
+#define IDirectInputDevice8_EnumEffects(p,a,b,c)              (p)->lpVtbl->EnumEffects(p,a,b,c)
+#define IDirectInputDevice8_GetEffectInfo(p,a,b)              (p)->lpVtbl->GetEffectInfo(p,a,b)
+#define IDirectInputDevice8_GetForceFeedbackState(p,a)        (p)->lpVtbl->GetForceFeedbackState(p,a)
+#define IDirectInputDevice8_SendForceFeedbackCommand(p,a)     (p)->lpVtbl->SendForceFeedbackCommand(p,a)
+#define IDirectInputDevice8_EnumCreatedEffectObjects(p,a,b,c) (p)->lpVtbl->EnumCreatedEffectObjects(p,a,b,c)
+#define IDirectInputDevice8_Escape(p,a)                       (p)->lpVtbl->Escape(p,a)
+#define IDirectInputDevice8_Poll(p)                           (p)->lpVtbl->Poll(p)
+#define IDirectInputDevice8_SendDeviceData(p,a,b,c,d)         (p)->lpVtbl->SendDeviceData(p,a,b,c,d)
+/*** IDirectInputDevice7 methods ***/
+#define IDirectInputDevice8_EnumEffectsInFile(p,a,b,c,d) (p)->lpVtbl->EnumEffectsInFile(p,a,b,c,d)
+#define IDirectInputDevice8_WriteEffectToFile(p,a,b,c,d) (p)->lpVtbl->WriteEffectToFile(p,a,b,c,d)
+/*** IDirectInputDevice8 methods ***/
+#define IDirectInputDevice8_BuildActionMap(p,a,b,c) (p)->lpVtbl->BuildActionMap(p,a,b,c)
+#define IDirectInputDevice8_SetActionMap(p,a,b,c)   (p)->lpVtbl->SetActionMap(p,a,b,c)
+#define IDirectInputDevice8_GetImageInfo(p,a)       (p)->lpVtbl->GetImageInfo(p,a)
+#else
+/*** IUnknown methods ***/
+#define IDirectInputDevice8_QueryInterface(p,a,b) (p)->QueryInterface(a,b)
+#define IDirectInputDevice8_AddRef(p)             (p)->AddRef()
+#define IDirectInputDevice8_Release(p)            (p)->Release()
+/*** IDirectInputDevice methods ***/
+#define IDirectInputDevice8_GetCapabilities(p,a)       (p)->GetCapabilities(a)
+#define IDirectInputDevice8_EnumObjects(p,a,b,c)       (p)->EnumObjects(a,b,c)
+#define IDirectInputDevice8_GetProperty(p,a,b)         (p)->GetProperty(a,b)
+#define IDirectInputDevice8_SetProperty(p,a,b)         (p)->SetProperty(a,b)
+#define IDirectInputDevice8_Acquire(p)                 (p)->Acquire()
+#define IDirectInputDevice8_Unacquire(p)               (p)->Unacquire()
+#define IDirectInputDevice8_GetDeviceState(p,a,b)      (p)->GetDeviceState(a,b)
+#define IDirectInputDevice8_GetDeviceData(p,a,b,c,d)   (p)->GetDeviceData(a,b,c,d)
+#define IDirectInputDevice8_SetDataFormat(p,a)         (p)->SetDataFormat(a)
+#define IDirectInputDevice8_SetEventNotification(p,a)  (p)->SetEventNotification(a)
+#define IDirectInputDevice8_SetCooperativeLevel(p,a,b) (p)->SetCooperativeLevel(a,b)
+#define IDirectInputDevice8_GetObjectInfo(p,a,b,c)     (p)->GetObjectInfo(a,b,c)
+#define IDirectInputDevice8_GetDeviceInfo(p,a)         (p)->GetDeviceInfo(a)
+#define IDirectInputDevice8_RunControlPanel(p,a,b)     (p)->RunControlPanel(a,b)
+#define IDirectInputDevice8_Initialize(p,a,b,c)        (p)->Initialize(a,b,c)
+/*** IDirectInputDevice2 methods ***/
+#define IDirectInputDevice8_CreateEffect(p,a,b,c,d)           (p)->CreateEffect(a,b,c,d)
+#define IDirectInputDevice8_EnumEffects(p,a,b,c)              (p)->EnumEffects(a,b,c)
+#define IDirectInputDevice8_GetEffectInfo(p,a,b)              (p)->GetEffectInfo(a,b)
+#define IDirectInputDevice8_GetForceFeedbackState(p,a)        (p)->GetForceFeedbackState(a)
+#define IDirectInputDevice8_SendForceFeedbackCommand(p,a)     (p)->SendForceFeedbackCommand(a)
+#define IDirectInputDevice8_EnumCreatedEffectObjects(p,a,b,c) (p)->EnumCreatedEffectObjects(a,b,c)
+#define IDirectInputDevice8_Escape(p,a)                       (p)->Escape(a)
+#define IDirectInputDevice8_Poll(p)                           (p)->Poll()
+#define IDirectInputDevice8_SendDeviceData(p,a,b,c,d)         (p)->SendDeviceData(a,b,c,d)
+/*** IDirectInputDevice7 methods ***/
+#define IDirectInputDevice8_EnumEffectsInFile(p,a,b,c,d) (p)->EnumEffectsInFile(a,b,c,d)
+#define IDirectInputDevice8_WriteEffectToFile(p,a,b,c,d) (p)->WriteEffectToFile(a,b,c,d)
+/*** IDirectInputDevice8 methods ***/
+#define IDirectInputDevice8_BuildActionMap(p,a,b,c) (p)->BuildActionMap(a,b,c)
+#define IDirectInputDevice8_SetActionMap(p,a,b,c)   (p)->SetActionMap(a,b,c)
+#define IDirectInputDevice8_GetImageInfo(p,a)       (p)->GetImageInfo(a)
+#endif
+
+#endif /* DI8 */
+
+/* "Standard" Mouse report... */
+typedef struct DIMOUSESTATE {
+  LONG lX;
+  LONG lY;
+  LONG lZ;
+  BYTE rgbButtons[4];
+} DIMOUSESTATE;
+
+#if DIRECTINPUT_VERSION >= 0x0700
+/* "Standard" Mouse report for DInput 7... */
+typedef struct DIMOUSESTATE2 {
+  LONG lX;
+  LONG lY;
+  LONG lZ;
+  BYTE rgbButtons[8];
+} DIMOUSESTATE2;
+#endif /* DI7 */
+
+#define DIMOFS_X        FIELD_OFFSET(DIMOUSESTATE, lX)
+#define DIMOFS_Y        FIELD_OFFSET(DIMOUSESTATE, lY)
+#define DIMOFS_Z        FIELD_OFFSET(DIMOUSESTATE, lZ)
+#define DIMOFS_BUTTON0 (FIELD_OFFSET(DIMOUSESTATE, rgbButtons) + 0)
+#define DIMOFS_BUTTON1 (FIELD_OFFSET(DIMOUSESTATE, rgbButtons) + 1)
+#define DIMOFS_BUTTON2 (FIELD_OFFSET(DIMOUSESTATE, rgbButtons) + 2)
+#define DIMOFS_BUTTON3 (FIELD_OFFSET(DIMOUSESTATE, rgbButtons) + 3)
+#if DIRECTINPUT_VERSION >= 0x0700
+#define DIMOFS_BUTTON4 (FIELD_OFFSET(DIMOUSESTATE2, rgbButtons) + 4)
+#define DIMOFS_BUTTON5 (FIELD_OFFSET(DIMOUSESTATE2, rgbButtons) + 5)
+#define DIMOFS_BUTTON6 (FIELD_OFFSET(DIMOUSESTATE2, rgbButtons) + 6)
+#define DIMOFS_BUTTON7 (FIELD_OFFSET(DIMOUSESTATE2, rgbButtons) + 7)
+#endif /* DI7 */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+extern const DIDATAFORMAT c_dfDIMouse;
+#if DIRECTINPUT_VERSION >= 0x0700
+extern const DIDATAFORMAT c_dfDIMouse2; /* DX 7 */
+#endif /* DI7 */
+extern const DIDATAFORMAT c_dfDIKeyboard;
+#if DIRECTINPUT_VERSION >= 0x0500
+extern const DIDATAFORMAT c_dfDIJoystick;
+extern const DIDATAFORMAT c_dfDIJoystick2;
+#endif /* DI5 */
+#ifdef __cplusplus
+};
+#endif
+
+/*****************************************************************************
+ * IDirectInputA interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInputA
+DECLARE_INTERFACE_(IDirectInputA,IUnknown)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputA methods ***/
+    STDMETHOD(CreateDevice)(THIS_ REFGUID rguid, LPDIRECTINPUTDEVICEA *lplpDirectInputDevice, LPUNKNOWN pUnkOuter) PURE;
+    STDMETHOD(EnumDevices)(THIS_ DWORD dwDevType, LPDIENUMDEVICESCALLBACKA lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetDeviceStatus)(THIS_ REFGUID rguidInstance) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion) PURE;
+};
+
+/*****************************************************************************
+ * IDirectInputW interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInputW
+DECLARE_INTERFACE_(IDirectInputW,IUnknown)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputW methods ***/
+    STDMETHOD(CreateDevice)(THIS_ REFGUID rguid, LPDIRECTINPUTDEVICEW *lplpDirectInputDevice, LPUNKNOWN pUnkOuter) PURE;
+    STDMETHOD(EnumDevices)(THIS_ DWORD dwDevType, LPDIENUMDEVICESCALLBACKW lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetDeviceStatus)(THIS_ REFGUID rguidInstance) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion) PURE;
+};
+
+#if !defined(__cplusplus) || defined(CINTERFACE)
+/*** IUnknown methods ***/
+#define IDirectInput_QueryInterface(p,a,b) (p)->lpVtbl->QueryInterface(p,a,b)
+#define IDirectInput_AddRef(p)             (p)->lpVtbl->AddRef(p)
+#define IDirectInput_Release(p)            (p)->lpVtbl->Release(p)
+/*** IDirectInput methods ***/
+#define IDirectInput_CreateDevice(p,a,b,c)  (p)->lpVtbl->CreateDevice(p,a,b,c)
+#define IDirectInput_EnumDevices(p,a,b,c,d) (p)->lpVtbl->EnumDevices(p,a,b,c,d)
+#define IDirectInput_GetDeviceStatus(p,a)   (p)->lpVtbl->GetDeviceStatus(p,a)
+#define IDirectInput_RunControlPanel(p,a,b) (p)->lpVtbl->RunControlPanel(p,a,b)
+#define IDirectInput_Initialize(p,a,b)      (p)->lpVtbl->Initialize(p,a,b)
+#else
+/*** IUnknown methods ***/
+#define IDirectInput_QueryInterface(p,a,b) (p)->QueryInterface(a,b)
+#define IDirectInput_AddRef(p)             (p)->AddRef()
+#define IDirectInput_Release(p)            (p)->Release()
+/*** IDirectInput methods ***/
+#define IDirectInput_CreateDevice(p,a,b,c)  (p)->CreateDevice(a,b,c)
+#define IDirectInput_EnumDevices(p,a,b,c,d) (p)->EnumDevices(a,b,c,d)
+#define IDirectInput_GetDeviceStatus(p,a)   (p)->GetDeviceStatus(a)
+#define IDirectInput_RunControlPanel(p,a,b) (p)->RunControlPanel(a,b)
+#define IDirectInput_Initialize(p,a,b)      (p)->Initialize(a,b)
+#endif
+
+/*****************************************************************************
+ * IDirectInput2A interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInput2A
+DECLARE_INTERFACE_(IDirectInput2A,IDirectInputA)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputA methods ***/
+    STDMETHOD(CreateDevice)(THIS_ REFGUID rguid, LPDIRECTINPUTDEVICEA *lplpDirectInputDevice, LPUNKNOWN pUnkOuter) PURE;
+    STDMETHOD(EnumDevices)(THIS_ DWORD dwDevType, LPDIENUMDEVICESCALLBACKA lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetDeviceStatus)(THIS_ REFGUID rguidInstance) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion) PURE;
+    /*** IDirectInput2A methods ***/
+    STDMETHOD(FindDevice)(THIS_ REFGUID rguid, LPCSTR pszName, LPGUID pguidInstance) PURE;
+};
+
+/*****************************************************************************
+ * IDirectInput2W interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInput2W
+DECLARE_INTERFACE_(IDirectInput2W,IDirectInputW)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputW methods ***/
+    STDMETHOD(CreateDevice)(THIS_ REFGUID rguid, LPDIRECTINPUTDEVICEW *lplpDirectInputDevice, LPUNKNOWN pUnkOuter) PURE;
+    STDMETHOD(EnumDevices)(THIS_ DWORD dwDevType, LPDIENUMDEVICESCALLBACKW lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetDeviceStatus)(THIS_ REFGUID rguidInstance) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion) PURE;
+    /*** IDirectInput2W methods ***/
+    STDMETHOD(FindDevice)(THIS_ REFGUID rguid, LPCWSTR pszName, LPGUID pguidInstance) PURE;
+};
+
+#if !defined(__cplusplus) || defined(CINTERFACE)
+/*** IUnknown methods ***/
+#define IDirectInput2_QueryInterface(p,a,b) (p)->lpVtbl->QueryInterface(p,a,b)
+#define IDirectInput2_AddRef(p)             (p)->lpVtbl->AddRef(p)
+#define IDirectInput2_Release(p)            (p)->lpVtbl->Release(p)
+/*** IDirectInput methods ***/
+#define IDirectInput2_CreateDevice(p,a,b,c)  (p)->lpVtbl->CreateDevice(p,a,b,c)
+#define IDirectInput2_EnumDevices(p,a,b,c,d) (p)->lpVtbl->EnumDevices(p,a,b,c,d)
+#define IDirectInput2_GetDeviceStatus(p,a)   (p)->lpVtbl->GetDeviceStatus(p,a)
+#define IDirectInput2_RunControlPanel(p,a,b) (p)->lpVtbl->RunControlPanel(p,a,b)
+#define IDirectInput2_Initialize(p,a,b)      (p)->lpVtbl->Initialize(p,a,b)
+/*** IDirectInput2 methods ***/
+#define IDirectInput2_FindDevice(p,a,b,c)    (p)->lpVtbl->FindDevice(p,a,b,c)
+#else
+/*** IUnknown methods ***/
+#define IDirectInput2_QueryInterface(p,a,b) (p)->QueryInterface(a,b)
+#define IDirectInput2_AddRef(p)             (p)->AddRef()
+#define IDirectInput2_Release(p)            (p)->Release()
+/*** IDirectInput methods ***/
+#define IDirectInput2_CreateDevice(p,a,b,c)  (p)->CreateDevice(a,b,c)
+#define IDirectInput2_EnumDevices(p,a,b,c,d) (p)->EnumDevices(a,b,c,d)
+#define IDirectInput2_GetDeviceStatus(p,a)   (p)->GetDeviceStatus(a)
+#define IDirectInput2_RunControlPanel(p,a,b) (p)->RunControlPanel(a,b)
+#define IDirectInput2_Initialize(p,a,b)      (p)->Initialize(a,b)
+/*** IDirectInput2 methods ***/
+#define IDirectInput2_FindDevice(p,a,b,c)    (p)->FindDevice(a,b,c)
+#endif
+
+/*****************************************************************************
+ * IDirectInput7A interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInput7A
+DECLARE_INTERFACE_(IDirectInput7A,IDirectInput2A)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputA methods ***/
+    STDMETHOD(CreateDevice)(THIS_ REFGUID rguid, LPDIRECTINPUTDEVICEA *lplpDirectInputDevice, LPUNKNOWN pUnkOuter) PURE;
+    STDMETHOD(EnumDevices)(THIS_ DWORD dwDevType, LPDIENUMDEVICESCALLBACKA lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetDeviceStatus)(THIS_ REFGUID rguidInstance) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion) PURE;
+    /*** IDirectInput2A methods ***/
+    STDMETHOD(FindDevice)(THIS_ REFGUID rguid, LPCSTR pszName, LPGUID pguidInstance) PURE;
+    /*** IDirectInput7A methods ***/
+    STDMETHOD(CreateDeviceEx)(THIS_ REFGUID rguid, REFIID riid, LPVOID *pvOut, LPUNKNOWN lpUnknownOuter) PURE;
+};
+
+/*****************************************************************************
+ * IDirectInput7W interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInput7W
+DECLARE_INTERFACE_(IDirectInput7W,IDirectInput2W)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInputW methods ***/
+    STDMETHOD(CreateDevice)(THIS_ REFGUID rguid, LPDIRECTINPUTDEVICEW *lplpDirectInputDevice, LPUNKNOWN pUnkOuter) PURE;
+    STDMETHOD(EnumDevices)(THIS_ DWORD dwDevType, LPDIENUMDEVICESCALLBACKW lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetDeviceStatus)(THIS_ REFGUID rguidInstance) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion) PURE;
+    /*** IDirectInput2W methods ***/
+    STDMETHOD(FindDevice)(THIS_ REFGUID rguid, LPCWSTR pszName, LPGUID pguidInstance) PURE;
+    /*** IDirectInput7W methods ***/
+    STDMETHOD(CreateDeviceEx)(THIS_ REFGUID rguid, REFIID riid, LPVOID *pvOut, LPUNKNOWN lpUnknownOuter) PURE;
+};
+
+#if !defined(__cplusplus) || defined(CINTERFACE)
+/*** IUnknown methods ***/
+#define IDirectInput7_QueryInterface(p,a,b) (p)->lpVtbl->QueryInterface(p,a,b)
+#define IDirectInput7_AddRef(p)             (p)->lpVtbl->AddRef(p)
+#define IDirectInput7_Release(p)            (p)->lpVtbl->Release(p)
+/*** IDirectInput methods ***/
+#define IDirectInput7_CreateDevice(p,a,b,c)  (p)->lpVtbl->CreateDevice(p,a,b,c)
+#define IDirectInput7_EnumDevices(p,a,b,c,d) (p)->lpVtbl->EnumDevices(p,a,b,c,d)
+#define IDirectInput7_GetDeviceStatus(p,a)   (p)->lpVtbl->GetDeviceStatus(p,a)
+#define IDirectInput7_RunControlPanel(p,a,b) (p)->lpVtbl->RunControlPanel(p,a,b)
+#define IDirectInput7_Initialize(p,a,b)      (p)->lpVtbl->Initialize(p,a,b)
+/*** IDirectInput2 methods ***/
+#define IDirectInput7_FindDevice(p,a,b,c)    (p)->lpVtbl->FindDevice(p,a,b,c)
+/*** IDirectInput7 methods ***/
+#define IDirectInput7_CreateDeviceEx(p,a,b,c,d) (p)->lpVtbl->CreateDeviceEx(p,a,b,c,d)
+#else
+/*** IUnknown methods ***/
+#define IDirectInput7_QueryInterface(p,a,b) (p)->QueryInterface(a,b)
+#define IDirectInput7_AddRef(p)             (p)->AddRef()
+#define IDirectInput7_Release(p)            (p)->Release()
+/*** IDirectInput methods ***/
+#define IDirectInput7_CreateDevice(p,a,b,c)  (p)->CreateDevice(a,b,c)
+#define IDirectInput7_EnumDevices(p,a,b,c,d) (p)->EnumDevices(a,b,c,d)
+#define IDirectInput7_GetDeviceStatus(p,a)   (p)->GetDeviceStatus(a)
+#define IDirectInput7_RunControlPanel(p,a,b) (p)->RunControlPanel(a,b)
+#define IDirectInput7_Initialize(p,a,b)      (p)->Initialize(a,b)
+/*** IDirectInput2 methods ***/
+#define IDirectInput7_FindDevice(p,a,b,c)    (p)->FindDevice(a,b,c)
+/*** IDirectInput7 methods ***/
+#define IDirectInput7_CreateDeviceEx(p,a,b,c,d) (p)->CreateDeviceEx(a,b,c,d)
+#endif
+
+
+#if DIRECTINPUT_VERSION >= 0x0800
+/*****************************************************************************
+ * IDirectInput8A interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInput8A
+DECLARE_INTERFACE_(IDirectInput8A,IUnknown)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInput8A methods ***/
+    STDMETHOD(CreateDevice)(THIS_ REFGUID rguid, LPDIRECTINPUTDEVICE8A *lplpDirectInputDevice, LPUNKNOWN pUnkOuter) PURE;
+    STDMETHOD(EnumDevices)(THIS_ DWORD dwDevType, LPDIENUMDEVICESCALLBACKA lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetDeviceStatus)(THIS_ REFGUID rguidInstance) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion) PURE;
+    STDMETHOD(FindDevice)(THIS_ REFGUID rguid, LPCSTR pszName, LPGUID pguidInstance) PURE;
+    STDMETHOD(EnumDevicesBySemantics)(THIS_ LPCSTR ptszUserName, LPDIACTIONFORMATA lpdiActionFormat, LPDIENUMDEVICESBYSEMANTICSCBA lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(ConfigureDevices)(THIS_ LPDICONFIGUREDEVICESCALLBACK lpdiCallback, LPDICONFIGUREDEVICESPARAMSA lpdiCDParams, DWORD dwFlags, LPVOID pvRefData) PURE;
+};
+
+/*****************************************************************************
+ * IDirectInput8W interface
+ */
+#undef INTERFACE
+#define INTERFACE IDirectInput8W
+DECLARE_INTERFACE_(IDirectInput8W,IUnknown)
+{
+    /*** IUnknown methods ***/
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void** ppvObject) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
+    STDMETHOD_(ULONG,Release)(THIS) PURE;
+    /*** IDirectInput8W methods ***/
+    STDMETHOD(CreateDevice)(THIS_ REFGUID rguid, LPDIRECTINPUTDEVICE8W *lplpDirectInputDevice, LPUNKNOWN pUnkOuter) PURE;
+    STDMETHOD(EnumDevices)(THIS_ DWORD dwDevType, LPDIENUMDEVICESCALLBACKW lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(GetDeviceStatus)(THIS_ REFGUID rguidInstance) PURE;
+    STDMETHOD(RunControlPanel)(THIS_ HWND hwndOwner, DWORD dwFlags) PURE;
+    STDMETHOD(Initialize)(THIS_ HINSTANCE hinst, DWORD dwVersion) PURE;
+    STDMETHOD(FindDevice)(THIS_ REFGUID rguid, LPCWSTR pszName, LPGUID pguidInstance) PURE;
+    STDMETHOD(EnumDevicesBySemantics)(THIS_ LPCWSTR ptszUserName, LPDIACTIONFORMATW lpdiActionFormat, LPDIENUMDEVICESBYSEMANTICSCBW lpCallback, LPVOID pvRef, DWORD dwFlags) PURE;
+    STDMETHOD(ConfigureDevices)(THIS_ LPDICONFIGUREDEVICESCALLBACK lpdiCallback, LPDICONFIGUREDEVICESPARAMSW lpdiCDParams, DWORD dwFlags, LPVOID pvRefData) PURE;
+};
+#undef INTERFACE
+
+#if !defined(__cplusplus) || defined(CINTERFACE)
+/*** IUnknown methods ***/
+#define IDirectInput8_QueryInterface(p,a,b) (p)->lpVtbl->QueryInterface(p,a,b)
+#define IDirectInput8_AddRef(p)             (p)->lpVtbl->AddRef(p)
+#define IDirectInput8_Release(p)            (p)->lpVtbl->Release(p)
+/*** IDirectInput8 methods ***/
+#define IDirectInput8_CreateDevice(p,a,b,c)       (p)->lpVtbl->CreateDevice(p,a,b,c)
+#define IDirectInput8_EnumDevices(p,a,b,c,d)      (p)->lpVtbl->EnumDevices(p,a,b,c,d)
+#define IDirectInput8_GetDeviceStatus(p,a)        (p)->lpVtbl->GetDeviceStatus(p,a)
+#define IDirectInput8_RunControlPanel(p,a,b)      (p)->lpVtbl->RunControlPanel(p,a,b)
+#define IDirectInput8_Initialize(p,a,b)           (p)->lpVtbl->Initialize(p,a,b)
+#define IDirectInput8_FindDevice(p,a,b,c)         (p)->lpVtbl->FindDevice(p,a,b,c)
+#define IDirectInput8_EnumDevicesBySemantics(p,a,b,c,d,e) (p)->lpVtbl->EnumDevicesBySemantics(p,a,b,c,d,e)
+#define IDirectInput8_ConfigureDevices(p,a,b,c,d) (p)->lpVtbl->ConfigureDevices(p,a,b,c,d)
+#else
+/*** IUnknown methods ***/
+#define IDirectInput8_QueryInterface(p,a,b) (p)->QueryInterface(a,b)
+#define IDirectInput8_AddRef(p)             (p)->AddRef()
+#define IDirectInput8_Release(p)            (p)->Release()
+/*** IDirectInput8 methods ***/
+#define IDirectInput8_CreateDevice(p,a,b,c)       (p)->CreateDevice(a,b,c)
+#define IDirectInput8_EnumDevices(p,a,b,c,d)      (p)->EnumDevices(a,b,c,d)
+#define IDirectInput8_GetDeviceStatus(p,a)        (p)->GetDeviceStatus(a)
+#define IDirectInput8_RunControlPanel(p,a,b)      (p)->RunControlPanel(a,b)
+#define IDirectInput8_Initialize(p,a,b)           (p)->Initialize(a,b)
+#define IDirectInput8_FindDevice(p,a,b,c)         (p)->FindDevice(a,b,c)
+#define IDirectInput8_EnumDevicesBySemantics(p,a,b,c,d,e) (p)->EnumDevicesBySemantics(a,b,c,d,e)
+#define IDirectInput8_ConfigureDevices(p,a,b,c,d) (p)->ConfigureDevices(a,b,c,d)
+#endif
+
+#endif /* DI8 */
+
+/* Export functions */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if DIRECTINPUT_VERSION >= 0x0800
+HRESULT WINAPI DirectInput8Create(HINSTANCE,DWORD,REFIID,LPVOID *,LPUNKNOWN);
+#else /* DI < 8 */
+HRESULT WINAPI DirectInputCreateA(HINSTANCE,DWORD,LPDIRECTINPUTA *,LPUNKNOWN);
+HRESULT WINAPI DirectInputCreateW(HINSTANCE,DWORD,LPDIRECTINPUTW *,LPUNKNOWN);
+#define DirectInputCreate WINELIB_NAME_AW(DirectInputCreate)
+
+HRESULT WINAPI DirectInputCreateEx(HINSTANCE,DWORD,REFIID,LPVOID *,LPUNKNOWN);
+#endif /* DI8 */
+
+#ifdef __cplusplus
+};
+#endif
+
+#endif /* __DINPUT_INCLUDED__ */
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/mingw/xinput.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/mingw/xinput.h
new file mode 100644
index 000000000000..d3ca726ce202
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/mingw/xinput.h
@@ -0,0 +1,239 @@
+/*
+ * The Wine project - Xinput Joystick Library
+ * Copyright 2008 Andrew Fenn
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef __WINE_XINPUT_H
+#define __WINE_XINPUT_H
+
+#include <windef.h>
+
+/*
+ * Bitmasks for the joysticks buttons, determines what has
+ * been pressed on the joystick, these need to be mapped
+ * to whatever device you're using instead of an xbox 360
+ * joystick
+ */
+
+#define XINPUT_GAMEPAD_DPAD_UP          0x0001
+#define XINPUT_GAMEPAD_DPAD_DOWN        0x0002
+#define XINPUT_GAMEPAD_DPAD_LEFT        0x0004
+#define XINPUT_GAMEPAD_DPAD_RIGHT       0x0008
+#define XINPUT_GAMEPAD_START            0x0010
+#define XINPUT_GAMEPAD_BACK             0x0020
+#define XINPUT_GAMEPAD_LEFT_THUMB       0x0040
+#define XINPUT_GAMEPAD_RIGHT_THUMB      0x0080
+#define XINPUT_GAMEPAD_LEFT_SHOULDER    0x0100
+#define XINPUT_GAMEPAD_RIGHT_SHOULDER   0x0200
+#define XINPUT_GAMEPAD_A                0x1000
+#define XINPUT_GAMEPAD_B                0x2000
+#define XINPUT_GAMEPAD_X                0x4000
+#define XINPUT_GAMEPAD_Y                0x8000
+
+/*
+ * Defines the flags used to determine if the user is pushing
+ * down on a button, not holding a button, etc
+ */
+
+#define XINPUT_KEYSTROKE_KEYDOWN        0x0001
+#define XINPUT_KEYSTROKE_KEYUP          0x0002
+#define XINPUT_KEYSTROKE_REPEAT         0x0004
+
+/*
+ * Defines the codes which are returned by XInputGetKeystroke
+ */
+
+#define VK_PAD_A                        0x5800
+#define VK_PAD_B                        0x5801
+#define VK_PAD_X                        0x5802
+#define VK_PAD_Y                        0x5803
+#define VK_PAD_RSHOULDER                0x5804
+#define VK_PAD_LSHOULDER                0x5805
+#define VK_PAD_LTRIGGER                 0x5806
+#define VK_PAD_RTRIGGER                 0x5807
+#define VK_PAD_DPAD_UP                  0x5810
+#define VK_PAD_DPAD_DOWN                0x5811
+#define VK_PAD_DPAD_LEFT                0x5812
+#define VK_PAD_DPAD_RIGHT               0x5813
+#define VK_PAD_START                    0x5814
+#define VK_PAD_BACK                     0x5815
+#define VK_PAD_LTHUMB_PRESS             0x5816
+#define VK_PAD_RTHUMB_PRESS             0x5817
+#define VK_PAD_LTHUMB_UP                0x5820
+#define VK_PAD_LTHUMB_DOWN              0x5821
+#define VK_PAD_LTHUMB_RIGHT             0x5822
+#define VK_PAD_LTHUMB_LEFT              0x5823
+#define VK_PAD_LTHUMB_UPLEFT            0x5824
+#define VK_PAD_LTHUMB_UPRIGHT           0x5825
+#define VK_PAD_LTHUMB_DOWNRIGHT         0x5826
+#define VK_PAD_LTHUMB_DOWNLEFT          0x5827
+#define VK_PAD_RTHUMB_UP                0x5830
+#define VK_PAD_RTHUMB_DOWN              0x5831
+#define VK_PAD_RTHUMB_RIGHT             0x5832
+#define VK_PAD_RTHUMB_LEFT              0x5833
+#define VK_PAD_RTHUMB_UPLEFT            0x5834
+#define VK_PAD_RTHUMB_UPRIGHT           0x5835
+#define VK_PAD_RTHUMB_DOWNRIGHT         0x5836
+#define VK_PAD_RTHUMB_DOWNLEFT          0x5837
+
+/*
+ * Deadzones are for analogue joystick controls on the joypad
+ * which determine when input should be assumed to be in the
+ * middle of the pad. This is a threshold to stop a joypad
+ * controlling the game when the player isn't touching the
+ * controls.
+ */
+
+#define XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE  7849
+#define XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE 8689
+#define XINPUT_GAMEPAD_TRIGGER_THRESHOLD    30
+
+
+/*
+ * Defines what type of abilities the type of joystick has
+ * DEVTYPE_GAMEPAD is available for all joysticks, however
+ * there may be more specific identifiers for other joysticks
+ * which are being used.
+ */
+
+#define XINPUT_DEVTYPE_GAMEPAD          0x01
+#define XINPUT_DEVSUBTYPE_GAMEPAD       0x01
+#define XINPUT_DEVSUBTYPE_WHEEL         0x02
+#define XINPUT_DEVSUBTYPE_ARCADE_STICK  0x03
+#define XINPUT_DEVSUBTYPE_FLIGHT_SICK   0x04
+#define XINPUT_DEVSUBTYPE_DANCE_PAD     0x05
+#define XINPUT_DEVSUBTYPE_GUITAR        0x06
+#define XINPUT_DEVSUBTYPE_DRUM_KIT      0x08
+
+/*
+ * These are used with the XInputGetCapabilities function to
+ * determine the abilities to the joystick which has been
+ * plugged in.
+ */
+
+#define XINPUT_CAPS_VOICE_SUPPORTED     0x0004
+#define XINPUT_FLAG_GAMEPAD             0x00000001
+
+/*
+ * Defines the status of the battery if one is used in the
+ * attached joystick. The first two define if the joystick
+ * supports a battery. Disconnected means that the joystick
+ * isn't connected. Wired shows that the joystick is a wired
+ * joystick.
+ */
+
+#define BATTERY_DEVTYPE_GAMEPAD         0x00
+#define BATTERY_DEVTYPE_HEADSET         0x01
+#define BATTERY_TYPE_DISCONNECTED       0x00
+#define BATTERY_TYPE_WIRED              0x01
+#define BATTERY_TYPE_ALKALINE           0x02
+#define BATTERY_TYPE_NIMH               0x03
+#define BATTERY_TYPE_UNKNOWN            0xFF
+#define BATTERY_LEVEL_EMPTY             0x00
+#define BATTERY_LEVEL_LOW               0x01
+#define BATTERY_LEVEL_MEDIUM            0x02
+#define BATTERY_LEVEL_FULL              0x03
+
+/*
+ * How many joysticks can be used with this library. Games that
+ * use the xinput library will not go over this number.
+ */
+
+#define XUSER_MAX_COUNT                 4
+#define XUSER_INDEX_ANY                 0x000000FF
+
+/*
+ * Defines the structure of an xbox 360 joystick.
+ */
+
+typedef struct _XINPUT_GAMEPAD {
+    WORD wButtons;
+    BYTE bLeftTrigger;
+    BYTE bRightTrigger;
+    SHORT sThumbLX;
+    SHORT sThumbLY;
+    SHORT sThumbRX;
+    SHORT sThumbRY;
+} XINPUT_GAMEPAD, *PXINPUT_GAMEPAD;
+
+typedef struct _XINPUT_STATE {
+    DWORD dwPacketNumber;
+    XINPUT_GAMEPAD Gamepad;
+} XINPUT_STATE, *PXINPUT_STATE;
+
+/*
+ * Defines the structure of how much vibration is set on both the
+ * right and left motors in a joystick. If you're not using a 360
+ * joystick you will have to map these to your device.
+ */
+
+typedef struct _XINPUT_VIBRATION {
+    WORD wLeftMotorSpeed;
+    WORD wRightMotorSpeed;
+} XINPUT_VIBRATION, *PXINPUT_VIBRATION;
+
+/*
+ * Defines the structure for what kind of abilities the joystick has
+ * such abilities are things such as if the joystick has the ability
+ * to send and receive audio, if the joystick is in fact a driving
+ * wheel or perhaps if the joystick is some kind of dance pad or
+ * guitar.
+ */
+
+typedef struct _XINPUT_CAPABILITIES {
+    BYTE Type;
+    BYTE SubType;
+    WORD Flags;
+    XINPUT_GAMEPAD Gamepad;
+    XINPUT_VIBRATION Vibration;
+} XINPUT_CAPABILITIES, *PXINPUT_CAPABILITIES;
+
+/*
+ * Defines the structure for a joystick input event which is
+ * retrieved using the function XInputGetKeystroke
+ */
+typedef struct _XINPUT_KEYSTROKE {
+    WORD VirtualKey;
+    WCHAR Unicode;
+    WORD Flags;
+    BYTE UserIndex;
+    BYTE HidCode;
+} XINPUT_KEYSTROKE, *PXINPUT_KEYSTROKE;
+
+typedef struct _XINPUT_BATTERY_INFORMATION
+{
+    BYTE BatteryType;
+    BYTE BatteryLevel;
+} XINPUT_BATTERY_INFORMATION, *PXINPUT_BATTERY_INFORMATION;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void WINAPI XInputEnable(WINBOOL);
+DWORD WINAPI XInputSetState(DWORD, XINPUT_VIBRATION*);
+DWORD WINAPI XInputGetState(DWORD, XINPUT_STATE*);
+DWORD WINAPI XInputGetKeystroke(DWORD, DWORD, PXINPUT_KEYSTROKE);
+DWORD WINAPI XInputGetCapabilities(DWORD, DWORD, XINPUT_CAPABILITIES*);
+DWORD WINAPI XInputGetDSoundAudioDeviceGuids(DWORD, GUID*, GUID*);
+DWORD WINAPI XInputGetBatteryInformation(DWORD, BYTE, XINPUT_BATTERY_INFORMATION*);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __WINE_XINPUT_H */
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/nuklear.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/nuklear.h
new file mode 100644
index 000000000000..f2eb9dfa2c35
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/nuklear.h
@@ -0,0 +1,25778 @@
+/*
+/// # Nuklear
+/// ![](https://cloud.githubusercontent.com/assets/8057201/11761525/ae06f0ca-a0c6-11e5-819d-5610b25f6ef4.gif)
+///
+/// ## Contents
+/// 1. About section
+/// 2. Highlights section
+/// 3. Features section
+/// 4. Usage section
+///     1. Flags section
+///     2. Constants section
+///     3. Dependencies section
+/// 5. Example section
+/// 6. API section
+///     1. Context section
+///     2. Input section
+///     3. Drawing section
+///     4. Window section
+///     5. Layouting section
+///     6. Groups section
+///     7. Tree section
+///     8. Properties section
+/// 7. License section
+/// 8. Changelog section
+/// 9. Gallery section
+/// 10. Credits section
+///
+/// ## About
+/// This is a minimal state immediate mode graphical user interface toolkit
+/// written in ANSI C and licensed under public domain. It was designed as a simple
+/// embeddable user interface for application and does not have any dependencies,
+/// a default renderbackend or OS window and input handling but instead provides a very modular
+/// library approach by using simple input state for input and draw
+/// commands describing primitive shapes as output. So instead of providing a
+/// layered library that tries to abstract over a number of platform and
+/// render backends it only focuses on the actual UI.
+///
+/// ## Highlights
+/// - Graphical user interface toolkit
+/// - Single header library
+/// - Written in C89 (a.k.a. ANSI C or ISO C90)
+/// - Small codebase (~18kLOC)
+/// - Focus on portability, efficiency and simplicity
+/// - No dependencies (not even the standard library if not wanted)
+/// - Fully skinnable and customizable
+/// - Low memory footprint with total memory control if needed or wanted
+/// - UTF-8 support
+/// - No global or hidden state
+/// - Customizable library modules (you can compile and use only what you need)
+/// - Optional font baker and vertex buffer output
+///
+/// ## Features
+/// - Absolutely no platform dependent code
+/// - Memory management control ranging from/to
+///     - Ease of use by allocating everything from standard library
+///     - Control every byte of memory inside the library
+/// - Font handling control ranging from/to
+///     - Use your own font implementation for everything
+///     - Use this libraries internal font baking and handling API
+/// - Drawing output control ranging from/to
+///     - Simple shapes for more high level APIs which already have drawing capabilities
+///     - Hardware accessible anti-aliased vertex buffer output
+/// - Customizable colors and properties ranging from/to
+///     - Simple changes to color by filling a simple color table
+///     - Complete control with ability to use skinning to decorate widgets
+/// - Bendable UI library with widget ranging from/to
+///     - Basic widgets like buttons, checkboxes, slider, ...
+///     - Advanced widget like abstract comboboxes, contextual menus,...
+/// - Compile time configuration to only compile what you need
+///     - Subset which can be used if you do not want to link or use the standard library
+/// - Can be easily modified to only update on user input instead of frame updates
+///
+/// ## Usage
+/// This library is self contained in one single header file and can be used either
+/// in header only mode or in implementation mode. The header only mode is used
+/// by default when included and allows including this header in other headers
+/// and does not contain the actual implementation. <br /><br />
+///
+/// The implementation mode requires to define  the preprocessor macro
+/// NK_IMPLEMENTATION in *one* .c/.cpp file before #includeing this file, e.g.:
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~C
+///     #define NK_IMPLEMENTATION
+///     #include "nuklear.h"
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Also optionally define the symbols listed in the section "OPTIONAL DEFINES"
+/// below in header and implementation mode if you want to use additional functionality
+/// or need more control over the library.
+///
+/// !!! WARNING
+///     Every time nuklear is included define the same compiler flags. This very important not doing so could lead to compiler errors or even worse stack corruptions.
+///
+/// ### Flags
+/// Flag                            | Description
+/// --------------------------------|------------------------------------------
+/// NK_PRIVATE                      | If defined declares all functions as static, so they can only be accessed inside the file that contains the implementation
+/// NK_INCLUDE_FIXED_TYPES          | If defined it will include header `<stdint.h>` for fixed sized types otherwise nuklear tries to select the correct type. If that fails it will throw a compiler error and you have to select the correct types yourself.
+/// NK_INCLUDE_DEFAULT_ALLOCATOR    | If defined it will include header `<stdlib.h>` and provide additional functions to use this library without caring for memory allocation control and therefore ease memory management.
+/// NK_INCLUDE_STANDARD_IO          | If defined it will include header `<stdio.h>` and provide additional functions depending on file loading.
+/// NK_INCLUDE_STANDARD_VARARGS     | If defined it will include header <stdio.h> and provide additional functions depending on file loading.
+/// NK_INCLUDE_VERTEX_BUFFER_OUTPUT | Defining this adds a vertex draw command list backend to this library, which allows you to convert queue commands into vertex draw commands. This is mainly if you need a hardware accessible format for OpenGL, DirectX, Vulkan, Metal,...
+/// NK_INCLUDE_FONT_BAKING          | Defining this adds `stb_truetype` and `stb_rect_pack` implementation to this library and provides font baking and rendering. If you already have font handling or do not want to use this font handler you don't have to define it.
+/// NK_INCLUDE_DEFAULT_FONT         | Defining this adds the default font: ProggyClean.ttf into this library which can be loaded into a font atlas and allows using this library without having a truetype font
+/// NK_INCLUDE_COMMAND_USERDATA     | Defining this adds a userdata pointer into each command. Can be useful for example if you want to provide custom shaders depending on the used widget. Can be combined with the style structures.
+/// NK_BUTTON_TRIGGER_ON_RELEASE    | Different platforms require button clicks occurring either on buttons being pressed (up to down) or released (down to up). By default this library will react on buttons being pressed, but if you define this it will only trigger if a button is released.
+/// NK_ZERO_COMMAND_MEMORY          | Defining this will zero out memory for each drawing command added to a drawing queue (inside nk_command_buffer_push). Zeroing command memory is very useful for fast checking (using memcmp) if command buffers are equal and avoid drawing frames when nothing on screen has changed since previous frame.
+/// NK_UINT_DRAW_INDEX              | Defining this will set the size of vertex index elements when using NK_VERTEX_BUFFER_OUTPUT to 32bit instead of the default of 16bit
+/// NK_KEYSTATE_BASED_INPUT         | Define this if your backend uses key state for each frame rather than key press/release events
+///
+/// !!! WARNING
+///     The following flags will pull in the standard C library:
+///     - NK_INCLUDE_DEFAULT_ALLOCATOR
+///     - NK_INCLUDE_STANDARD_IO
+///     - NK_INCLUDE_STANDARD_VARARGS
+///
+/// !!! WARNING
+///     The following flags if defined need to be defined for both header and implementation:
+///     - NK_INCLUDE_FIXED_TYPES
+///     - NK_INCLUDE_DEFAULT_ALLOCATOR
+///     - NK_INCLUDE_STANDARD_VARARGS
+///     - NK_INCLUDE_VERTEX_BUFFER_OUTPUT
+///     - NK_INCLUDE_FONT_BAKING
+///     - NK_INCLUDE_DEFAULT_FONT
+///     - NK_INCLUDE_STANDARD_VARARGS
+///     - NK_INCLUDE_COMMAND_USERDATA
+///     - NK_UINT_DRAW_INDEX
+///
+/// ### Constants
+/// Define                          | Description
+/// --------------------------------|---------------------------------------
+/// NK_BUFFER_DEFAULT_INITIAL_SIZE  | Initial buffer size allocated by all buffers while using the default allocator functions included by defining NK_INCLUDE_DEFAULT_ALLOCATOR. If you don't want to allocate the default 4k memory then redefine it.
+/// NK_MAX_NUMBER_BUFFER            | Maximum buffer size for the conversion buffer between float and string Under normal circumstances this should be more than sufficient.
+/// NK_INPUT_MAX                    | Defines the max number of bytes which can be added as text input in one frame. Under normal circumstances this should be more than sufficient.
+///
+/// !!! WARNING
+///     The following constants if defined need to be defined for both header and implementation:
+///     - NK_MAX_NUMBER_BUFFER
+///     - NK_BUFFER_DEFAULT_INITIAL_SIZE
+///     - NK_INPUT_MAX
+///
+/// ### Dependencies
+/// Function    | Description
+/// ------------|---------------------------------------------------------------
+/// NK_ASSERT   | If you don't define this, nuklear will use <assert.h> with assert().
+/// NK_MEMSET   | You can define this to 'memset' or your own memset implementation replacement. If not nuklear will use its own version.
+/// NK_MEMCPY   | You can define this to 'memcpy' or your own memcpy implementation replacement. If not nuklear will use its own version.
+/// NK_SQRT     | You can define this to 'sqrt' or your own sqrt implementation replacement. If not nuklear will use its own slow and not highly accurate version.
+/// NK_SIN      | You can define this to 'sinf' or your own sine implementation replacement. If not nuklear will use its own approximation implementation.
+/// NK_COS      | You can define this to 'cosf' or your own cosine implementation replacement. If not nuklear will use its own approximation implementation.
+/// NK_STRTOD   | You can define this to `strtod` or your own string to double conversion implementation replacement. If not defined nuklear will use its own imprecise and possibly unsafe version (does not handle nan or infinity!).
+/// NK_DTOA     | You can define this to `dtoa` or your own double to string conversion implementation replacement. If not defined nuklear will use its own imprecise and possibly unsafe version (does not handle nan or infinity!).
+/// NK_VSNPRINTF| If you define `NK_INCLUDE_STANDARD_VARARGS` as well as `NK_INCLUDE_STANDARD_IO` and want to be safe define this to `vsnprintf` on compilers supporting later versions of C or C++. By default nuklear will check for your stdlib version in C as well as compiler version in C++. if `vsnprintf` is available it will define it to `vsnprintf` directly. If not defined and if you have older versions of C or C++ it will be defined to `vsprintf` which is unsafe.
+///
+/// !!! WARNING
+///     The following dependencies will pull in the standard C library if not redefined:
+///     - NK_ASSERT
+///
+/// !!! WARNING
+///     The following dependencies if defined need to be defined for both header and implementation:
+///     - NK_ASSERT
+///
+/// !!! WARNING
+///     The following dependencies if defined need to be defined only for the implementation part:
+///     - NK_MEMSET
+///     - NK_MEMCPY
+///     - NK_SQRT
+///     - NK_SIN
+///     - NK_COS
+///     - NK_STRTOD
+///     - NK_DTOA
+///     - NK_VSNPRINTF
+///
+/// ## Example
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// // init gui state
+/// enum {EASY, HARD};
+/// static int op = EASY;
+/// static float value = 0.6f;
+/// static int i =  20;
+/// struct nk_context ctx;
+///
+/// nk_init_fixed(&ctx, calloc(1, MAX_MEMORY), MAX_MEMORY, &font);
+/// if (nk_begin(&ctx, "Show", nk_rect(50, 50, 220, 220),
+///     NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_CLOSABLE)) {
+///     // fixed widget pixel width
+///     nk_layout_row_static(&ctx, 30, 80, 1);
+///     if (nk_button_label(&ctx, "button")) {
+///         // event handling
+///     }
+///
+///     // fixed widget window ratio width
+///     nk_layout_row_dynamic(&ctx, 30, 2);
+///     if (nk_option_label(&ctx, "easy", op == EASY)) op = EASY;
+///     if (nk_option_label(&ctx, "hard", op == HARD)) op = HARD;
+///
+///     // custom widget pixel width
+///     nk_layout_row_begin(&ctx, NK_STATIC, 30, 2);
+///     {
+///         nk_layout_row_push(&ctx, 50);
+///         nk_label(&ctx, "Volume:", NK_TEXT_LEFT);
+///         nk_layout_row_push(&ctx, 110);
+///         nk_slider_float(&ctx, 0, &value, 1.0f, 0.1f);
+///     }
+///     nk_layout_row_end(&ctx);
+/// }
+/// nk_end(&ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// ![](https://cloud.githubusercontent.com/assets/8057201/10187981/584ecd68-675c-11e5-897c-822ef534a876.png)
+///
+/// ## API
+///
+*/
+#ifndef NK_SINGLE_FILE
+  #define NK_SINGLE_FILE
+#endif
+
+#ifndef NK_NUKLEAR_H_
+#define NK_NUKLEAR_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * ==============================================================
+ *
+ *                          CONSTANTS
+ *
+ * ===============================================================
+ */
+#define NK_UNDEFINED (-1.0f)
+#define NK_UTF_INVALID 0xFFFD /* internal invalid utf8 rune */
+#define NK_UTF_SIZE 4 /* describes the number of bytes a glyph consists of*/
+#ifndef NK_INPUT_MAX
+  #define NK_INPUT_MAX 16
+#endif
+#ifndef NK_MAX_NUMBER_BUFFER
+  #define NK_MAX_NUMBER_BUFFER 64
+#endif
+#ifndef NK_SCROLLBAR_HIDING_TIMEOUT
+  #define NK_SCROLLBAR_HIDING_TIMEOUT 4.0f
+#endif
+/*
+ * ==============================================================
+ *
+ *                          HELPER
+ *
+ * ===============================================================
+ */
+#ifndef NK_API
+  #ifdef NK_PRIVATE
+    #if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199409L))
+      #define NK_API static inline
+    #elif defined(__cplusplus)
+      #define NK_API static inline
+    #else
+      #define NK_API static
+    #endif
+  #else
+    #define NK_API extern
+  #endif
+#endif
+#ifndef NK_LIB
+  #ifdef NK_SINGLE_FILE
+    #define NK_LIB static
+  #else
+    #define NK_LIB extern
+  #endif
+#endif
+
+#define NK_INTERN static
+#define NK_STORAGE static
+#define NK_GLOBAL static
+
+#define NK_FLAG(x) (1 << (x))
+#define NK_STRINGIFY(x) #x
+#define NK_MACRO_STRINGIFY(x) NK_STRINGIFY(x)
+#define NK_STRING_JOIN_IMMEDIATE(arg1, arg2) arg1 ## arg2
+#define NK_STRING_JOIN_DELAY(arg1, arg2) NK_STRING_JOIN_IMMEDIATE(arg1, arg2)
+#define NK_STRING_JOIN(arg1, arg2) NK_STRING_JOIN_DELAY(arg1, arg2)
+
+#ifdef _MSC_VER
+  #define NK_UNIQUE_NAME(name) NK_STRING_JOIN(name,__COUNTER__)
+#else
+  #define NK_UNIQUE_NAME(name) NK_STRING_JOIN(name,__LINE__)
+#endif
+
+#ifndef NK_STATIC_ASSERT
+  #define NK_STATIC_ASSERT(exp) typedef char NK_UNIQUE_NAME(_dummy_array)[(exp)?1:-1]
+#endif
+
+#ifndef NK_FILE_LINE
+#ifdef _MSC_VER
+  #define NK_FILE_LINE __FILE__ ":" NK_MACRO_STRINGIFY(__COUNTER__)
+#else
+  #define NK_FILE_LINE __FILE__ ":" NK_MACRO_STRINGIFY(__LINE__)
+#endif
+#endif
+
+#define NK_MIN(a,b) ((a) < (b) ? (a) : (b))
+#define NK_MAX(a,b) ((a) < (b) ? (b) : (a))
+#define NK_CLAMP(i,v,x) (NK_MAX(NK_MIN(v,x), i))
+
+#ifdef NK_INCLUDE_STANDARD_VARARGS
+  #include <stdarg.h> /* valist, va_start, va_end, ... */
+  #if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
+    #include <sal.h>
+    #define NK_PRINTF_FORMAT_STRING _Printf_format_string_
+  #else
+    #define NK_PRINTF_FORMAT_STRING
+  #endif
+  #if defined(__GNUC__)
+    #define NK_PRINTF_VARARG_FUNC(fmtargnumber) __attribute__((format(__printf__, fmtargnumber, fmtargnumber+1)))
+    #define NK_PRINTF_VALIST_FUNC(fmtargnumber) __attribute__((format(__printf__, fmtargnumber, 0)))
+  #else
+    #define NK_PRINTF_VARARG_FUNC(fmtargnumber)
+    #define NK_PRINTF_VALIST_FUNC(fmtargnumber)
+  #endif
+#endif
+
+/*
+ * ===============================================================
+ *
+ *                          BASIC
+ *
+ * ===============================================================
+ */
+#ifdef NK_INCLUDE_FIXED_TYPES
+ #include <stdint.h>
+ #define NK_INT8 int8_t
+ #define NK_UINT8 uint8_t
+ #define NK_INT16 int16_t
+ #define NK_UINT16 uint16_t
+ #define NK_INT32 int32_t
+ #define NK_UINT32 uint32_t
+ #define NK_SIZE_TYPE uintptr_t
+ #define NK_POINTER_TYPE uintptr_t
+#else
+  #ifndef NK_INT8
+    #define NK_INT8 signed char
+  #endif
+  #ifndef NK_UINT8
+    #define NK_UINT8 unsigned char
+  #endif
+  #ifndef NK_INT16
+    #define NK_INT16 signed short
+  #endif
+  #ifndef NK_UINT16
+    #define NK_UINT16 unsigned short
+  #endif
+  #ifndef NK_INT32
+    #if defined(_MSC_VER)
+      #define NK_INT32 __int32
+    #else
+      #define NK_INT32 signed int
+    #endif
+  #endif
+  #ifndef NK_UINT32
+    #if defined(_MSC_VER)
+      #define NK_UINT32 unsigned __int32
+    #else
+      #define NK_UINT32 unsigned int
+    #endif
+  #endif
+  #ifndef NK_SIZE_TYPE
+    #if defined(_WIN64) && defined(_MSC_VER)
+      #define NK_SIZE_TYPE unsigned __int64
+    #elif (defined(_WIN32) || defined(WIN32)) && defined(_MSC_VER)
+      #define NK_SIZE_TYPE unsigned __int32
+    #elif defined(__GNUC__) || defined(__clang__)
+      #if defined(__x86_64__) || defined(__ppc64__)
+        #define NK_SIZE_TYPE unsigned long
+      #else
+        #define NK_SIZE_TYPE unsigned int
+      #endif
+    #else
+      #define NK_SIZE_TYPE unsigned long
+    #endif
+  #endif
+  #ifndef NK_POINTER_TYPE
+    #if defined(_WIN64) && defined(_MSC_VER)
+      #define NK_POINTER_TYPE unsigned __int64
+    #elif (defined(_WIN32) || defined(WIN32)) && defined(_MSC_VER)
+      #define NK_POINTER_TYPE unsigned __int32
+    #elif defined(__GNUC__) || defined(__clang__)
+      #if defined(__x86_64__) || defined(__ppc64__)
+        #define NK_POINTER_TYPE unsigned long
+      #else
+        #define NK_POINTER_TYPE unsigned int
+      #endif
+    #else
+      #define NK_POINTER_TYPE unsigned long
+    #endif
+  #endif
+#endif
+
+typedef NK_INT8 nk_char;
+typedef NK_UINT8 nk_uchar;
+typedef NK_UINT8 nk_byte;
+typedef NK_INT16 nk_short;
+typedef NK_UINT16 nk_ushort;
+typedef NK_INT32 nk_int;
+typedef NK_UINT32 nk_uint;
+typedef NK_SIZE_TYPE nk_size;
+typedef NK_POINTER_TYPE nk_ptr;
+
+typedef nk_uint nk_hash;
+typedef nk_uint nk_flags;
+typedef nk_uint nk_rune;
+
+/* Make sure correct type size:
+ * This will fire with a negative subscript error if the type sizes
+ * are set incorrectly by the compiler, and compile out if not */
+NK_STATIC_ASSERT(sizeof(nk_short) == 2);
+NK_STATIC_ASSERT(sizeof(nk_ushort) == 2);
+NK_STATIC_ASSERT(sizeof(nk_uint) == 4);
+NK_STATIC_ASSERT(sizeof(nk_int) == 4);
+NK_STATIC_ASSERT(sizeof(nk_byte) == 1);
+NK_STATIC_ASSERT(sizeof(nk_flags) >= 4);
+NK_STATIC_ASSERT(sizeof(nk_rune) >= 4);
+NK_STATIC_ASSERT(sizeof(nk_size) >= sizeof(void*));
+NK_STATIC_ASSERT(sizeof(nk_ptr) >= sizeof(void*));
+
+/* ============================================================================
+ *
+ *                                  API
+ *
+ * =========================================================================== */
+struct nk_buffer;
+struct nk_allocator;
+struct nk_command_buffer;
+struct nk_draw_command;
+struct nk_convert_config;
+struct nk_style_item;
+struct nk_text_edit;
+struct nk_draw_list;
+struct nk_user_font;
+struct nk_panel;
+struct nk_context;
+struct nk_draw_vertex_layout_element;
+struct nk_style_button;
+struct nk_style_toggle;
+struct nk_style_selectable;
+struct nk_style_slide;
+struct nk_style_progress;
+struct nk_style_scrollbar;
+struct nk_style_edit;
+struct nk_style_property;
+struct nk_style_chart;
+struct nk_style_combo;
+struct nk_style_tab;
+struct nk_style_window_header;
+struct nk_style_window;
+
+enum {nk_false, nk_true};
+struct nk_color {nk_byte r,g,b,a;};
+struct nk_colorf {float r,g,b,a;};
+struct nk_vec2 {float x,y;};
+struct nk_vec2i {short x, y;};
+struct nk_rect {float x,y,w,h;};
+struct nk_recti {short x,y,w,h;};
+typedef char nk_glyph[NK_UTF_SIZE];
+typedef union {void *ptr; int id;} nk_handle;
+struct nk_image {nk_handle handle;unsigned short w,h;unsigned short region[4];};
+struct nk_cursor {struct nk_image img; struct nk_vec2 size, offset;};
+struct nk_scroll {nk_uint x, y;};
+
+enum nk_heading         {NK_UP, NK_RIGHT, NK_DOWN, NK_LEFT};
+enum nk_button_behavior {NK_BUTTON_DEFAULT, NK_BUTTON_REPEATER};
+enum nk_modify          {NK_FIXED = nk_false, NK_MODIFIABLE = nk_true};
+enum nk_orientation     {NK_VERTICAL, NK_HORIZONTAL};
+enum nk_collapse_states {NK_MINIMIZED = nk_false, NK_MAXIMIZED = nk_true};
+enum nk_show_states     {NK_HIDDEN = nk_false, NK_SHOWN = nk_true};
+enum nk_chart_type      {NK_CHART_LINES, NK_CHART_COLUMN, NK_CHART_MAX};
+enum nk_chart_event     {NK_CHART_HOVERING = 0x01, NK_CHART_CLICKED = 0x02};
+enum nk_color_format    {NK_RGB, NK_RGBA};
+enum nk_popup_type      {NK_POPUP_STATIC, NK_POPUP_DYNAMIC};
+enum nk_layout_format   {NK_DYNAMIC, NK_STATIC};
+enum nk_tree_type       {NK_TREE_NODE, NK_TREE_TAB};
+
+typedef void*(*nk_plugin_alloc)(nk_handle, void *old, nk_size);
+typedef void (*nk_plugin_free)(nk_handle, void *old);
+typedef int(*nk_plugin_filter)(const struct nk_text_edit*, nk_rune unicode);
+typedef void(*nk_plugin_paste)(nk_handle, struct nk_text_edit*);
+typedef void(*nk_plugin_copy)(nk_handle, const char*, int len);
+
+struct nk_allocator {
+    nk_handle userdata;
+    nk_plugin_alloc alloc;
+    nk_plugin_free free;
+};
+enum nk_symbol_type {
+    NK_SYMBOL_NONE,
+    NK_SYMBOL_X,
+    NK_SYMBOL_UNDERSCORE,
+    NK_SYMBOL_CIRCLE_SOLID,
+    NK_SYMBOL_CIRCLE_OUTLINE,
+    NK_SYMBOL_RECT_SOLID,
+    NK_SYMBOL_RECT_OUTLINE,
+    NK_SYMBOL_TRIANGLE_UP,
+    NK_SYMBOL_TRIANGLE_DOWN,
+    NK_SYMBOL_TRIANGLE_LEFT,
+    NK_SYMBOL_TRIANGLE_RIGHT,
+    NK_SYMBOL_PLUS,
+    NK_SYMBOL_MINUS,
+    NK_SYMBOL_MAX
+};
+/* =============================================================================
+ *
+ *                                  CONTEXT
+ *
+ * =============================================================================*/
+/*/// ### Context
+/// Contexts are the main entry point and the majestro of nuklear and contain all required state.
+/// They are used for window, memory, input, style, stack, commands and time management and need
+/// to be passed into all nuklear GUI specific functions.
+///
+/// #### Usage
+/// To use a context it first has to be initialized which can be achieved by calling
+/// one of either `nk_init_default`, `nk_init_fixed`, `nk_init`, `nk_init_custom`.
+/// Each takes in a font handle and a specific way of handling memory. Memory control
+/// hereby ranges from standard library to just specifying a fixed sized block of memory
+/// which nuklear has to manage itself from.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_context ctx;
+/// nk_init_xxx(&ctx, ...);
+/// while (1) {
+///     // [...]
+///     nk_clear(&ctx);
+/// }
+/// nk_free(&ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// #### Reference
+/// Function            | Description
+/// --------------------|-------------------------------------------------------
+/// __nk_init_default__ | Initializes context with standard library memory allocation (malloc,free)
+/// __nk_init_fixed__   | Initializes context from single fixed size memory block
+/// __nk_init__         | Initializes context with memory allocator callbacks for alloc and free
+/// __nk_init_custom__  | Initializes context from two buffers. One for draw commands the other for window/panel/table allocations
+/// __nk_clear__        | Called at the end of the frame to reset and prepare the context for the next frame
+/// __nk_free__         | Shutdown and free all memory allocated inside the context
+/// __nk_set_user_data__| Utility function to pass user data to draw command
+ */
+#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
+/*/// #### nk_init_default
+/// Initializes a `nk_context` struct with a default standard library allocator.
+/// Should be used if you don't want to be bothered with memory management in nuklear.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_init_default(struct nk_context *ctx, const struct nk_user_font *font);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|---------------------------------------------------------------
+/// __ctx__     | Must point to an either stack or heap allocated `nk_context` struct
+/// __font__    | Must point to a previously initialized font handle for more info look at font documentation
+///
+/// Returns either `false(0)` on failure or `true(1)` on success.
+///
+*/
+NK_API int nk_init_default(struct nk_context*, const struct nk_user_font*);
+#endif
+/*/// #### nk_init_fixed
+/// Initializes a `nk_context` struct from single fixed size memory block
+/// Should be used if you want complete control over nuklear's memory management.
+/// Especially recommended for system with little memory or systems with virtual memory.
+/// For the later case you can just allocate for example 16MB of virtual memory
+/// and only the required amount of memory will actually be committed.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_init_fixed(struct nk_context *ctx, void *memory, nk_size size, const struct nk_user_font *font);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// !!! Warning
+///     make sure the passed memory block is aligned correctly for `nk_draw_commands`.
+///
+/// Parameter   | Description
+/// ------------|--------------------------------------------------------------
+/// __ctx__     | Must point to an either stack or heap allocated `nk_context` struct
+/// __memory__  | Must point to a previously allocated memory block
+/// __size__    | Must contain the total size of __memory__
+/// __font__    | Must point to a previously initialized font handle for more info look at font documentation
+///
+/// Returns either `false(0)` on failure or `true(1)` on success.
+*/
+NK_API int nk_init_fixed(struct nk_context*, void *memory, nk_size size, const struct nk_user_font*);
+/*/// #### nk_init
+/// Initializes a `nk_context` struct with memory allocation callbacks for nuklear to allocate
+/// memory from. Used internally for `nk_init_default` and provides a kitchen sink allocation
+/// interface to nuklear. Can be useful for cases like monitoring memory consumption.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_init(struct nk_context *ctx, struct nk_allocator *alloc, const struct nk_user_font *font);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|---------------------------------------------------------------
+/// __ctx__     | Must point to an either stack or heap allocated `nk_context` struct
+/// __alloc__   | Must point to a previously allocated memory allocator
+/// __font__    | Must point to a previously initialized font handle for more info look at font documentation
+///
+/// Returns either `false(0)` on failure or `true(1)` on success.
+*/
+NK_API int nk_init(struct nk_context*, struct nk_allocator*, const struct nk_user_font*);
+/*/// #### nk_init_custom
+/// Initializes a `nk_context` struct from two different either fixed or growing
+/// buffers. The first buffer is for allocating draw commands while the second buffer is
+/// used for allocating windows, panels and state tables.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_init_custom(struct nk_context *ctx, struct nk_buffer *cmds, struct nk_buffer *pool, const struct nk_user_font *font);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|---------------------------------------------------------------
+/// __ctx__     | Must point to an either stack or heap allocated `nk_context` struct
+/// __cmds__    | Must point to a previously initialized memory buffer either fixed or dynamic to store draw commands into
+/// __pool__    | Must point to a previously initialized memory buffer either fixed or dynamic to store windows, panels and tables
+/// __font__    | Must point to a previously initialized font handle for more info look at font documentation
+///
+/// Returns either `false(0)` on failure or `true(1)` on success.
+*/
+NK_API int nk_init_custom(struct nk_context*, struct nk_buffer *cmds, struct nk_buffer *pool, const struct nk_user_font*);
+/*/// #### nk_clear
+/// Resets the context state at the end of the frame. This includes mostly
+/// garbage collector tasks like removing windows or table not called and therefore
+/// used anymore.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_clear(struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to a previously initialized `nk_context` struct
+*/
+NK_API void nk_clear(struct nk_context*);
+/*/// #### nk_free
+/// Frees all memory allocated by nuklear. Not needed if context was
+/// initialized with `nk_init_fixed`.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_free(struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to a previously initialized `nk_context` struct
+*/
+NK_API void nk_free(struct nk_context*);
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+/*/// #### nk_set_user_data
+/// Sets the currently passed userdata passed down into each draw command.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_set_user_data(struct nk_context *ctx, nk_handle data);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|--------------------------------------------------------------
+/// __ctx__     | Must point to a previously initialized `nk_context` struct
+/// __data__    | Handle with either pointer or index to be passed into every draw commands
+*/
+NK_API void nk_set_user_data(struct nk_context*, nk_handle handle);
+#endif
+/* =============================================================================
+ *
+ *                                  INPUT
+ *
+ * =============================================================================*/
+/*/// ### Input
+/// The input API is responsible for holding the current input state composed of
+/// mouse, key and text input states.
+/// It is worth noting that no direct OS or window handling is done in nuklear.
+/// Instead all input state has to be provided by platform specific code. This on one hand
+/// expects more work from the user and complicates usage but on the other hand
+/// provides simple abstraction over a big number of platforms, libraries and other
+/// already provided functionality.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// nk_input_begin(&ctx);
+/// while (GetEvent(&evt)) {
+///     if (evt.type == MOUSE_MOVE)
+///         nk_input_motion(&ctx, evt.motion.x, evt.motion.y);
+///     else if (evt.type == [...]) {
+///         // [...]
+///     }
+/// } nk_input_end(&ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// #### Usage
+/// Input state needs to be provided to nuklear by first calling `nk_input_begin`
+/// which resets internal state like delta mouse position and button transistions.
+/// After `nk_input_begin` all current input state needs to be provided. This includes
+/// mouse motion, button and key pressed and released, text input and scrolling.
+/// Both event- or state-based input handling are supported by this API
+/// and should work without problems. Finally after all input state has been
+/// mirrored `nk_input_end` needs to be called to finish input process.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_context ctx;
+/// nk_init_xxx(&ctx, ...);
+/// while (1) {
+///     Event evt;
+///     nk_input_begin(&ctx);
+///     while (GetEvent(&evt)) {
+///         if (evt.type == MOUSE_MOVE)
+///             nk_input_motion(&ctx, evt.motion.x, evt.motion.y);
+///         else if (evt.type == [...]) {
+///             // [...]
+///         }
+///     }
+///     nk_input_end(&ctx);
+///     // [...]
+///     nk_clear(&ctx);
+/// } nk_free(&ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// #### Reference
+/// Function            | Description
+/// --------------------|-------------------------------------------------------
+/// __nk_input_begin__  | Begins the input mirroring process. Needs to be called before all other `nk_input_xxx` calls
+/// __nk_input_motion__ | Mirrors mouse cursor position
+/// __nk_input_key__    | Mirrors key state with either pressed or released
+/// __nk_input_button__ | Mirrors mouse button state with either pressed or released
+/// __nk_input_scroll__ | Mirrors mouse scroll values
+/// __nk_input_char__   | Adds a single ASCII text character into an internal text buffer
+/// __nk_input_glyph__  | Adds a single multi-byte UTF-8 character into an internal text buffer
+/// __nk_input_unicode__| Adds a single unicode rune into an internal text buffer
+/// __nk_input_end__    | Ends the input mirroring process by calculating state changes. Don't call any `nk_input_xxx` function referenced above after this call
+*/
+enum nk_keys {
+    NK_KEY_NONE,
+    NK_KEY_SHIFT,
+    NK_KEY_CTRL,
+    NK_KEY_DEL,
+    NK_KEY_ENTER,
+    NK_KEY_TAB,
+    NK_KEY_BACKSPACE,
+    NK_KEY_COPY,
+    NK_KEY_CUT,
+    NK_KEY_PASTE,
+    NK_KEY_UP,
+    NK_KEY_DOWN,
+    NK_KEY_LEFT,
+    NK_KEY_RIGHT,
+    /* Shortcuts: text field */
+    NK_KEY_TEXT_INSERT_MODE,
+    NK_KEY_TEXT_REPLACE_MODE,
+    NK_KEY_TEXT_RESET_MODE,
+    NK_KEY_TEXT_LINE_START,
+    NK_KEY_TEXT_LINE_END,
+    NK_KEY_TEXT_START,
+    NK_KEY_TEXT_END,
+    NK_KEY_TEXT_UNDO,
+    NK_KEY_TEXT_REDO,
+    NK_KEY_TEXT_SELECT_ALL,
+    NK_KEY_TEXT_WORD_LEFT,
+    NK_KEY_TEXT_WORD_RIGHT,
+    /* Shortcuts: scrollbar */
+    NK_KEY_SCROLL_START,
+    NK_KEY_SCROLL_END,
+    NK_KEY_SCROLL_DOWN,
+    NK_KEY_SCROLL_UP,
+    NK_KEY_MAX
+};
+enum nk_buttons {
+    NK_BUTTON_LEFT,
+    NK_BUTTON_MIDDLE,
+    NK_BUTTON_RIGHT,
+    NK_BUTTON_DOUBLE,
+    NK_BUTTON_MAX
+};
+/*/// #### nk_input_begin
+/// Begins the input mirroring process by resetting text, scroll
+/// mouse, previous mouse position and movement as well as key state transitions,
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_input_begin(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to a previously initialized `nk_context` struct
+*/
+NK_API void nk_input_begin(struct nk_context*);
+/*/// #### nk_input_motion
+/// Mirrors current mouse position to nuklear
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_input_motion(struct nk_context *ctx, int x, int y);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to a previously initialized `nk_context` struct
+/// __x__       | Must hold an integer describing the current mouse cursor x-position
+/// __y__       | Must hold an integer describing the current mouse cursor y-position
+*/
+NK_API void nk_input_motion(struct nk_context*, int x, int y);
+/*/// #### nk_input_key
+/// Mirrors the state of a specific key to nuklear
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_input_key(struct nk_context*, enum nk_keys key, int down);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to a previously initialized `nk_context` struct
+/// __key__     | Must be any value specified in enum `nk_keys` that needs to be mirrored
+/// __down__    | Must be 0 for key is up and 1 for key is down
+*/
+NK_API void nk_input_key(struct nk_context*, enum nk_keys, int down);
+/*/// #### nk_input_button
+/// Mirrors the state of a specific mouse button to nuklear
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_input_button(struct nk_context *ctx, enum nk_buttons btn, int x, int y, int down);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to a previously initialized `nk_context` struct
+/// __btn__     | Must be any value specified in enum `nk_buttons` that needs to be mirrored
+/// __x__       | Must contain an integer describing mouse cursor x-position on click up/down
+/// __y__       | Must contain an integer describing mouse cursor y-position on click up/down
+/// __down__    | Must be 0 for key is up and 1 for key is down
+*/
+NK_API void nk_input_button(struct nk_context*, enum nk_buttons, int x, int y, int down);
+/*/// #### nk_input_scroll
+/// Copies the last mouse scroll value to nuklear. Is generally
+/// a scroll value. So does not have to come from mouse and could also originate
+/// TODO finish this sentence
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_input_scroll(struct nk_context *ctx, struct nk_vec2 val);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to a previously initialized `nk_context` struct
+/// __val__     | vector with both X- as well as Y-scroll value
+*/
+NK_API void nk_input_scroll(struct nk_context*, struct nk_vec2 val);
+/*/// #### nk_input_char
+/// Copies a single ASCII character into an internal text buffer
+/// This is basically a helper function to quickly push ASCII characters into
+/// nuklear.
+///
+/// !!! Note
+///     Stores up to NK_INPUT_MAX bytes between `nk_input_begin` and `nk_input_end`.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_input_char(struct nk_context *ctx, char c);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to a previously initialized `nk_context` struct
+/// __c__       | Must be a single ASCII character preferable one that can be printed
+*/
+NK_API void nk_input_char(struct nk_context*, char);
+/*/// #### nk_input_glyph
+/// Converts an encoded unicode rune into UTF-8 and copies the result into an
+/// internal text buffer.
+///
+/// !!! Note
+///     Stores up to NK_INPUT_MAX bytes between `nk_input_begin` and `nk_input_end`.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_input_glyph(struct nk_context *ctx, const nk_glyph g);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to a previously initialized `nk_context` struct
+/// __g__       | UTF-32 unicode codepoint
+*/
+NK_API void nk_input_glyph(struct nk_context*, const nk_glyph);
+/*/// #### nk_input_unicode
+/// Converts a unicode rune into UTF-8 and copies the result
+/// into an internal text buffer.
+/// !!! Note
+///     Stores up to NK_INPUT_MAX bytes between `nk_input_begin` and `nk_input_end`.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_input_unicode(struct nk_context*, nk_rune rune);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to a previously initialized `nk_context` struct
+/// __rune__    | UTF-32 unicode codepoint
+*/
+NK_API void nk_input_unicode(struct nk_context*, nk_rune);
+/*/// #### nk_input_end
+/// End the input mirroring process by resetting mouse grabbing
+/// state to ensure the mouse cursor is not grabbed indefinitely.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_input_end(struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to a previously initialized `nk_context` struct
+*/
+NK_API void nk_input_end(struct nk_context*);
+/* =============================================================================
+ *
+ *                                  DRAWING
+ *
+ * =============================================================================*/
+/*/// ### Drawing
+/// This library was designed to be render backend agnostic so it does
+/// not draw anything to screen directly. Instead all drawn shapes, widgets
+/// are made of, are buffered into memory and make up a command queue.
+/// Each frame therefore fills the command buffer with draw commands
+/// that then need to be executed by the user and his own render backend.
+/// After that the command buffer needs to be cleared and a new frame can be
+/// started. It is probably important to note that the command buffer is the main
+/// drawing API and the optional vertex buffer API only takes this format and
+/// converts it into a hardware accessible format.
+///
+/// #### Usage
+/// To draw all draw commands accumulated over a frame you need your own render
+/// backend able to draw a number of 2D primitives. This includes at least
+/// filled and stroked rectangles, circles, text, lines, triangles and scissors.
+/// As soon as this criterion is met you can iterate over each draw command
+/// and execute each draw command in a interpreter like fashion:
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// const struct nk_command *cmd = 0;
+/// nk_foreach(cmd, &ctx) {
+///     switch (cmd->type) {
+///     case NK_COMMAND_LINE:
+///         your_draw_line_function(...)
+///         break;
+///     case NK_COMMAND_RECT
+///         your_draw_rect_function(...)
+///         break;
+///     case //...:
+///         //[...]
+///     }
+/// }
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// In program flow context draw commands need to be executed after input has been
+/// gathered and the complete UI with windows and their contained widgets have
+/// been executed and before calling `nk_clear` which frees all previously
+/// allocated draw commands.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_context ctx;
+/// nk_init_xxx(&ctx, ...);
+/// while (1) {
+///     Event evt;
+///     nk_input_begin(&ctx);
+///     while (GetEvent(&evt)) {
+///         if (evt.type == MOUSE_MOVE)
+///             nk_input_motion(&ctx, evt.motion.x, evt.motion.y);
+///         else if (evt.type == [...]) {
+///             [...]
+///         }
+///     }
+///     nk_input_end(&ctx);
+///     //
+///     // [...]
+///     //
+///     const struct nk_command *cmd = 0;
+///     nk_foreach(cmd, &ctx) {
+///     switch (cmd->type) {
+///     case NK_COMMAND_LINE:
+///         your_draw_line_function(...)
+///         break;
+///     case NK_COMMAND_RECT
+///         your_draw_rect_function(...)
+///         break;
+///     case ...:
+///         // [...]
+///     }
+///     nk_clear(&ctx);
+/// }
+/// nk_free(&ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// You probably noticed that you have to draw all of the UI each frame which is
+/// quite wasteful. While the actual UI updating loop is quite fast rendering
+/// without actually needing it is not. So there are multiple things you could do.
+///
+/// First is only update on input. This of course is only an option if your
+/// application only depends on the UI and does not require any outside calculations.
+/// If you actually only update on input make sure to update the UI two times each
+/// frame and call `nk_clear` directly after the first pass and only draw in
+/// the second pass. In addition it is recommended to also add additional timers
+/// to make sure the UI is not drawn more than a fixed number of frames per second.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_context ctx;
+/// nk_init_xxx(&ctx, ...);
+/// while (1) {
+///     // [...wait for input ]
+///     // [...do two UI passes ...]
+///     do_ui(...)
+///     nk_clear(&ctx);
+///     do_ui(...)
+///     //
+///     // draw
+///     const struct nk_command *cmd = 0;
+///     nk_foreach(cmd, &ctx) {
+///     switch (cmd->type) {
+///     case NK_COMMAND_LINE:
+///         your_draw_line_function(...)
+///         break;
+///     case NK_COMMAND_RECT
+///         your_draw_rect_function(...)
+///         break;
+///     case ...:
+///         //[...]
+///     }
+///     nk_clear(&ctx);
+/// }
+/// nk_free(&ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// The second probably more applicable trick is to only draw if anything changed.
+/// It is not really useful for applications with continuous draw loop but
+/// quite useful for desktop applications. To actually get nuklear to only
+/// draw on changes you first have to define `NK_ZERO_COMMAND_MEMORY` and
+/// allocate a memory buffer that will store each unique drawing output.
+/// After each frame you compare the draw command memory inside the library
+/// with your allocated buffer by memcmp. If memcmp detects differences
+/// you have to copy the command buffer into the allocated buffer
+/// and then draw like usual (this example uses fixed memory but you could
+/// use dynamically allocated memory).
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// //[... other defines ...]
+/// #define NK_ZERO_COMMAND_MEMORY
+/// #include "nuklear.h"
+/// //
+/// // setup context
+/// struct nk_context ctx;
+/// void *last = calloc(1,64*1024);
+/// void *buf = calloc(1,64*1024);
+/// nk_init_fixed(&ctx, buf, 64*1024);
+/// //
+/// // loop
+/// while (1) {
+///     // [...input...]
+///     // [...ui...]
+///     void *cmds = nk_buffer_memory(&ctx.memory);
+///     if (memcmp(cmds, last, ctx.memory.allocated)) {
+///         memcpy(last,cmds,ctx.memory.allocated);
+///         const struct nk_command *cmd = 0;
+///         nk_foreach(cmd, &ctx) {
+///             switch (cmd->type) {
+///             case NK_COMMAND_LINE:
+///                 your_draw_line_function(...)
+///                 break;
+///             case NK_COMMAND_RECT
+///                 your_draw_rect_function(...)
+///                 break;
+///             case ...:
+///                 // [...]
+///             }
+///         }
+///     }
+///     nk_clear(&ctx);
+/// }
+/// nk_free(&ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Finally while using draw commands makes sense for higher abstracted platforms like
+/// X11 and Win32 or drawing libraries it is often desirable to use graphics
+/// hardware directly. Therefore it is possible to just define
+/// `NK_INCLUDE_VERTEX_BUFFER_OUTPUT` which includes optional vertex output.
+/// To access the vertex output you first have to convert all draw commands into
+/// vertexes by calling `nk_convert` which takes in your preferred vertex format.
+/// After successfully converting all draw commands just iterate over and execute all
+/// vertex draw commands:
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// // fill configuration
+/// struct your_vertex
+/// {
+///     float pos[2]; // important to keep it to 2 floats
+///     float uv[2];
+///     unsigned char col[4];
+/// };
+/// struct nk_convert_config cfg = {};
+/// static const struct nk_draw_vertex_layout_element vertex_layout[] = {
+///     {NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct your_vertex, pos)},
+///     {NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct your_vertex, uv)},
+///     {NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct your_vertex, col)},
+///     {NK_VERTEX_LAYOUT_END}
+/// };
+/// cfg.shape_AA = NK_ANTI_ALIASING_ON;
+/// cfg.line_AA = NK_ANTI_ALIASING_ON;
+/// cfg.vertex_layout = vertex_layout;
+/// cfg.vertex_size = sizeof(struct your_vertex);
+/// cfg.vertex_alignment = NK_ALIGNOF(struct your_vertex);
+/// cfg.circle_segment_count = 22;
+/// cfg.curve_segment_count = 22;
+/// cfg.arc_segment_count = 22;
+/// cfg.global_alpha = 1.0f;
+/// cfg.null = dev->null;
+/// //
+/// // setup buffers and convert
+/// struct nk_buffer cmds, verts, idx;
+/// nk_buffer_init_default(&cmds);
+/// nk_buffer_init_default(&verts);
+/// nk_buffer_init_default(&idx);
+/// nk_convert(&ctx, &cmds, &verts, &idx, &cfg);
+/// //
+/// // draw
+/// nk_draw_foreach(cmd, &ctx, &cmds) {
+/// if (!cmd->elem_count) continue;
+///     //[...]
+/// }
+/// nk_buffer_free(&cms);
+/// nk_buffer_free(&verts);
+/// nk_buffer_free(&idx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// #### Reference
+/// Function            | Description
+/// --------------------|-------------------------------------------------------
+/// __nk__begin__       | Returns the first draw command in the context draw command list to be drawn
+/// __nk__next__        | Increments the draw command iterator to the next command inside the context draw command list
+/// __nk_foreach__      | Iterates over each draw command inside the context draw command list
+/// __nk_convert__      | Converts from the abstract draw commands list into a hardware accessible vertex format
+/// __nk_draw_begin__   | Returns the first vertex command in the context vertex draw list to be executed
+/// __nk__draw_next__   | Increments the vertex command iterator to the next command inside the context vertex command list
+/// __nk__draw_end__    | Returns the end of the vertex draw list
+/// __nk_draw_foreach__ | Iterates over each vertex draw command inside the vertex draw list
+*/
+enum nk_anti_aliasing {NK_ANTI_ALIASING_OFF, NK_ANTI_ALIASING_ON};
+enum nk_convert_result {
+    NK_CONVERT_SUCCESS = 0,
+    NK_CONVERT_INVALID_PARAM = 1,
+    NK_CONVERT_COMMAND_BUFFER_FULL = NK_FLAG(1),
+    NK_CONVERT_VERTEX_BUFFER_FULL = NK_FLAG(2),
+    NK_CONVERT_ELEMENT_BUFFER_FULL = NK_FLAG(3)
+};
+struct nk_draw_null_texture {
+    nk_handle texture; /* texture handle to a texture with a white pixel */
+    struct nk_vec2 uv; /* coordinates to a white pixel in the texture  */
+};
+struct nk_convert_config {
+    float global_alpha; /* global alpha value */
+    enum nk_anti_aliasing line_AA; /* line anti-aliasing flag can be turned off if you are tight on memory */
+    enum nk_anti_aliasing shape_AA; /* shape anti-aliasing flag can be turned off if you are tight on memory */
+    unsigned circle_segment_count; /* number of segments used for circles: default to 22 */
+    unsigned arc_segment_count; /* number of segments used for arcs: default to 22 */
+    unsigned curve_segment_count; /* number of segments used for curves: default to 22 */
+    struct nk_draw_null_texture null; /* handle to texture with a white pixel for shape drawing */
+    const struct nk_draw_vertex_layout_element *vertex_layout; /* describes the vertex output format and packing */
+    nk_size vertex_size; /* sizeof one vertex for vertex packing */
+    nk_size vertex_alignment; /* vertex alignment: Can be obtained by NK_ALIGNOF */
+};
+/*/// #### nk__begin
+/// Returns a draw command list iterator to iterate all draw
+/// commands accumulated over one frame.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// const struct nk_command* nk__begin(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | must point to an previously initialized `nk_context` struct at the end of a frame
+///
+/// Returns draw command pointer pointing to the first command inside the draw command list
+*/
+NK_API const struct nk_command* nk__begin(struct nk_context*);
+/*/// #### nk__next
+/// Returns draw command pointer pointing to the next command inside the draw command list
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// const struct nk_command* nk__next(struct nk_context*, const struct nk_command*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct at the end of a frame
+/// __cmd__     | Must point to an previously a draw command either returned by `nk__begin` or `nk__next`
+///
+/// Returns draw command pointer pointing to the next command inside the draw command list
+*/
+NK_API const struct nk_command* nk__next(struct nk_context*, const struct nk_command*);
+/*/// #### nk_foreach
+/// Iterates over each draw command inside the context draw command list
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// #define nk_foreach(c, ctx)
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct at the end of a frame
+/// __cmd__     | Command pointer initialized to NULL
+///
+/// Iterates over each draw command inside the context draw command list
+*/
+#define nk_foreach(c, ctx) for((c) = nk__begin(ctx); (c) != 0; (c) = nk__next(ctx,c))
+#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
+/*/// #### nk_convert
+/// Converts all internal draw commands into vertex draw commands and fills
+/// three buffers with vertexes, vertex draw commands and vertex indices. The vertex format
+/// as well as some other configuration values have to be configured by filling out a
+/// `nk_convert_config` struct.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// nk_flags nk_convert(struct nk_context *ctx, struct nk_buffer *cmds,
+///     struct nk_buffer *vertices, struct nk_buffer *elements, const struct nk_convert_config*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct at the end of a frame
+/// __cmds__    | Must point to a previously initialized buffer to hold converted vertex draw commands
+/// __vertices__| Must point to a previously initialized buffer to hold all produced vertices
+/// __elements__| Must point to a previously initialized buffer to hold all produced vertex indices
+/// __config__  | Must point to a filled out `nk_config` struct to configure the conversion process
+///
+/// Returns one of enum nk_convert_result error codes
+///
+/// Parameter                       | Description
+/// --------------------------------|-----------------------------------------------------------
+/// NK_CONVERT_SUCCESS              | Signals a successful draw command to vertex buffer conversion
+/// NK_CONVERT_INVALID_PARAM        | An invalid argument was passed in the function call
+/// NK_CONVERT_COMMAND_BUFFER_FULL  | The provided buffer for storing draw commands is full or failed to allocate more memory
+/// NK_CONVERT_VERTEX_BUFFER_FULL   | The provided buffer for storing vertices is full or failed to allocate more memory
+/// NK_CONVERT_ELEMENT_BUFFER_FULL  | The provided buffer for storing indicies is full or failed to allocate more memory
+*/
+NK_API nk_flags nk_convert(struct nk_context*, struct nk_buffer *cmds, struct nk_buffer *vertices, struct nk_buffer *elements, const struct nk_convert_config*);
+/*/// #### nk__draw_begin
+/// Returns a draw vertex command buffer iterator to iterate over the vertex draw command buffer
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// const struct nk_draw_command* nk__draw_begin(const struct nk_context*, const struct nk_buffer*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct at the end of a frame
+/// __buf__     | Must point to an previously by `nk_convert` filled out vertex draw command buffer
+///
+/// Returns vertex draw command pointer pointing to the first command inside the vertex draw command buffer
+*/
+NK_API const struct nk_draw_command* nk__draw_begin(const struct nk_context*, const struct nk_buffer*);
+/*/// #### nk__draw_end
+/// Returns the vertex draw command at the end of the vertex draw command buffer
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// const struct nk_draw_command* nk__draw_end(const struct nk_context *ctx, const struct nk_buffer *buf);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct at the end of a frame
+/// __buf__     | Must point to an previously by `nk_convert` filled out vertex draw command buffer
+///
+/// Returns vertex draw command pointer pointing to the end of the last vertex draw command inside the vertex draw command buffer
+*/
+NK_API const struct nk_draw_command* nk__draw_end(const struct nk_context*, const struct nk_buffer*);
+/*/// #### nk__draw_next
+/// Increments the vertex draw command buffer iterator
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// const struct nk_draw_command* nk__draw_next(const struct nk_draw_command*, const struct nk_buffer*, const struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __cmd__     | Must point to an previously either by `nk__draw_begin` or `nk__draw_next` returned vertex draw command
+/// __buf__     | Must point to an previously by `nk_convert` filled out vertex draw command buffer
+/// __ctx__     | Must point to an previously initialized `nk_context` struct at the end of a frame
+///
+/// Returns vertex draw command pointer pointing to the end of the last vertex draw command inside the vertex draw command buffer
+*/
+NK_API const struct nk_draw_command* nk__draw_next(const struct nk_draw_command*, const struct nk_buffer*, const struct nk_context*);
+/*/// #### nk_draw_foreach
+/// Iterates over each vertex draw command inside a vertex draw command buffer
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// #define nk_draw_foreach(cmd,ctx, b)
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __cmd__     | `nk_draw_command`iterator set to NULL
+/// __buf__     | Must point to an previously by `nk_convert` filled out vertex draw command buffer
+/// __ctx__     | Must point to an previously initialized `nk_context` struct at the end of a frame
+*/
+#define nk_draw_foreach(cmd,ctx, b) for((cmd)=nk__draw_begin(ctx, b); (cmd)!=0; (cmd)=nk__draw_next(cmd, b, ctx))
+#endif
+/* =============================================================================
+ *
+ *                                  WINDOW
+ *
+ * =============================================================================
+/// ### Window
+/// Windows are the main persistent state used inside nuklear and are life time
+/// controlled by simply "retouching" (i.e. calling) each window each frame.
+/// All widgets inside nuklear can only be added inside the function pair `nk_begin_xxx`
+/// and `nk_end`. Calling any widgets outside these two functions will result in an
+/// assert in debug or no state change in release mode.<br /><br />
+///
+/// Each window holds frame persistent state like position, size, flags, state tables,
+/// and some garbage collected internal persistent widget state. Each window
+/// is linked into a window stack list which determines the drawing and overlapping
+/// order. The topmost window thereby is the currently active window.<br /><br />
+///
+/// To change window position inside the stack occurs either automatically by
+/// user input by being clicked on or programmatically by calling `nk_window_focus`.
+/// Windows by default are visible unless explicitly being defined with flag
+/// `NK_WINDOW_HIDDEN`, the user clicked the close button on windows with flag
+/// `NK_WINDOW_CLOSABLE` or if a window was explicitly hidden by calling
+/// `nk_window_show`. To explicitly close and destroy a window call `nk_window_close`.<br /><br />
+///
+/// #### Usage
+/// To create and keep a window you have to call one of the two `nk_begin_xxx`
+/// functions to start window declarations and `nk_end` at the end. Furthermore it
+/// is recommended to check the return value of `nk_begin_xxx` and only process
+/// widgets inside the window if the value is not 0. Either way you have to call
+/// `nk_end` at the end of window declarations. Furthermore, do not attempt to
+/// nest `nk_begin_xxx` calls which will hopefully result in an assert or if not
+/// in a segmentation fault.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// if (nk_begin_xxx(...) {
+///     // [... widgets ...]
+/// }
+/// nk_end(ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// In the grand concept window and widget declarations need to occur after input
+/// handling and before drawing to screen. Not doing so can result in higher
+/// latency or at worst invalid behavior. Furthermore make sure that `nk_clear`
+/// is called at the end of the frame. While nuklear's default platform backends
+/// already call `nk_clear` for you if you write your own backend not calling
+/// `nk_clear` can cause asserts or even worse undefined behavior.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_context ctx;
+/// nk_init_xxx(&ctx, ...);
+/// while (1) {
+///     Event evt;
+///     nk_input_begin(&ctx);
+///     while (GetEvent(&evt)) {
+///         if (evt.type == MOUSE_MOVE)
+///             nk_input_motion(&ctx, evt.motion.x, evt.motion.y);
+///         else if (evt.type == [...]) {
+///             nk_input_xxx(...);
+///         }
+///     }
+///     nk_input_end(&ctx);
+///
+///     if (nk_begin_xxx(...) {
+///         //[...]
+///     }
+///     nk_end(ctx);
+///
+///     const struct nk_command *cmd = 0;
+///     nk_foreach(cmd, &ctx) {
+///     case NK_COMMAND_LINE:
+///         your_draw_line_function(...)
+///         break;
+///     case NK_COMMAND_RECT
+///         your_draw_rect_function(...)
+///         break;
+///     case //...:
+///         //[...]
+///     }
+///     nk_clear(&ctx);
+/// }
+/// nk_free(&ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// #### Reference
+/// Function                            | Description
+/// ------------------------------------|----------------------------------------
+/// nk_begin                            | Starts a new window; needs to be called every frame for every window (unless hidden) or otherwise the window gets removed
+/// nk_begin_titled                     | Extended window start with separated title and identifier to allow multiple windows with same name but not title
+/// nk_end                              | Needs to be called at the end of the window building process to process scaling, scrollbars and general cleanup
+//
+/// nk_window_find                      | Finds and returns the window with give name
+/// nk_window_get_bounds                | Returns a rectangle with screen position and size of the currently processed window.
+/// nk_window_get_position              | Returns the position of the currently processed window
+/// nk_window_get_size                  | Returns the size with width and height of the currently processed window
+/// nk_window_get_width                 | Returns the width of the currently processed window
+/// nk_window_get_height                | Returns the height of the currently processed window
+/// nk_window_get_panel                 | Returns the underlying panel which contains all processing state of the current window
+/// nk_window_get_content_region        | Returns the position and size of the currently visible and non-clipped space inside the currently processed window
+/// nk_window_get_content_region_min    | Returns the upper rectangle position of the currently visible and non-clipped space inside the currently processed window
+/// nk_window_get_content_region_max    | Returns the upper rectangle position of the currently visible and non-clipped space inside the currently processed window
+/// nk_window_get_content_region_size   | Returns the size of the currently visible and non-clipped space inside the currently processed window
+/// nk_window_get_canvas                | Returns the draw command buffer. Can be used to draw custom widgets
+/// nk_window_get_scroll                | Gets the scroll offset of the current window
+/// nk_window_has_focus                 | Returns if the currently processed window is currently active
+/// nk_window_is_collapsed              | Returns if the window with given name is currently minimized/collapsed
+/// nk_window_is_closed                 | Returns if the currently processed window was closed
+/// nk_window_is_hidden                 | Returns if the currently processed window was hidden
+/// nk_window_is_active                 | Same as nk_window_has_focus for some reason
+/// nk_window_is_hovered                | Returns if the currently processed window is currently being hovered by mouse
+/// nk_window_is_any_hovered            | Return if any window currently hovered
+/// nk_item_is_any_active               | Returns if any window or widgets is currently hovered or active
+//
+/// nk_window_set_bounds                | Updates position and size of the currently processed window
+/// nk_window_set_position              | Updates position of the currently process window
+/// nk_window_set_size                  | Updates the size of the currently processed window
+/// nk_window_set_focus                 | Set the currently processed window as active window
+/// nk_window_set_scroll                | Sets the scroll offset of the current window
+//
+/// nk_window_close                     | Closes the window with given window name which deletes the window at the end of the frame
+/// nk_window_collapse                  | Collapses the window with given window name
+/// nk_window_collapse_if               | Collapses the window with given window name if the given condition was met
+/// nk_window_show                      | Hides a visible or reshows a hidden window
+/// nk_window_show_if                   | Hides/shows a window depending on condition
+*/
+/*
+/// #### nk_panel_flags
+/// Flag                        | Description
+/// ----------------------------|----------------------------------------
+/// NK_WINDOW_BORDER            | Draws a border around the window to visually separate window from the background
+/// NK_WINDOW_MOVABLE           | The movable flag indicates that a window can be moved by user input or by dragging the window header
+/// NK_WINDOW_SCALABLE          | The scalable flag indicates that a window can be scaled by user input by dragging a scaler icon at the button of the window
+/// NK_WINDOW_CLOSABLE          | Adds a closable icon into the header
+/// NK_WINDOW_MINIMIZABLE       | Adds a minimize icon into the header
+/// NK_WINDOW_NO_SCROLLBAR      | Removes the scrollbar from the window
+/// NK_WINDOW_TITLE             | Forces a header at the top at the window showing the title
+/// NK_WINDOW_SCROLL_AUTO_HIDE  | Automatically hides the window scrollbar if no user interaction: also requires delta time in `nk_context` to be set each frame
+/// NK_WINDOW_BACKGROUND        | Always keep window in the background
+/// NK_WINDOW_SCALE_LEFT        | Puts window scaler in the left-bottom corner instead right-bottom
+/// NK_WINDOW_NO_INPUT          | Prevents window of scaling, moving or getting focus
+///
+/// #### nk_collapse_states
+/// State           | Description
+/// ----------------|-----------------------------------------------------------
+/// __NK_MINIMIZED__| UI section is collased and not visibile until maximized
+/// __NK_MAXIMIZED__| UI section is extended and visibile until minimized
+/// <br /><br />
+*/
+enum nk_panel_flags {
+    NK_WINDOW_BORDER            = NK_FLAG(0),
+    NK_WINDOW_MOVABLE           = NK_FLAG(1),
+    NK_WINDOW_SCALABLE          = NK_FLAG(2),
+    NK_WINDOW_CLOSABLE          = NK_FLAG(3),
+    NK_WINDOW_MINIMIZABLE       = NK_FLAG(4),
+    NK_WINDOW_NO_SCROLLBAR      = NK_FLAG(5),
+    NK_WINDOW_TITLE             = NK_FLAG(6),
+    NK_WINDOW_SCROLL_AUTO_HIDE  = NK_FLAG(7),
+    NK_WINDOW_BACKGROUND        = NK_FLAG(8),
+    NK_WINDOW_SCALE_LEFT        = NK_FLAG(9),
+    NK_WINDOW_NO_INPUT          = NK_FLAG(10)
+};
+/*/// #### nk_begin
+/// Starts a new window; needs to be called every frame for every
+/// window (unless hidden) or otherwise the window gets removed
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_begin(struct nk_context *ctx, const char *title, struct nk_rect bounds, nk_flags flags);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __title__   | Window title and identifier. Needs to be persistent over frames to identify the window
+/// __bounds__  | Initial position and window size. However if you do not define `NK_WINDOW_SCALABLE` or `NK_WINDOW_MOVABLE` you can set window position and size every frame
+/// __flags__   | Window flags defined in the nk_panel_flags section with a number of different window behaviors
+///
+/// Returns `true(1)` if the window can be filled up with widgets from this point
+/// until `nk_end` or `false(0)` otherwise for example if minimized
+*/
+NK_API int nk_begin(struct nk_context *ctx, const char *title, struct nk_rect bounds, nk_flags flags);
+/*/// #### nk_begin_titled
+/// Extended window start with separated title and identifier to allow multiple
+/// windows with same title but not name
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_begin_titled(struct nk_context *ctx, const char *name, const char *title, struct nk_rect bounds, nk_flags flags);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Window identifier. Needs to be persistent over frames to identify the window
+/// __title__   | Window title displayed inside header if flag `NK_WINDOW_TITLE` or either `NK_WINDOW_CLOSABLE` or `NK_WINDOW_MINIMIZED` was set
+/// __bounds__  | Initial position and window size. However if you do not define `NK_WINDOW_SCALABLE` or `NK_WINDOW_MOVABLE` you can set window position and size every frame
+/// __flags__   | Window flags defined in the nk_panel_flags section with a number of different window behaviors
+///
+/// Returns `true(1)` if the window can be filled up with widgets from this point
+/// until `nk_end` or `false(0)` otherwise for example if minimized
+*/
+NK_API int nk_begin_titled(struct nk_context *ctx, const char *name, const char *title, struct nk_rect bounds, nk_flags flags);
+/*/// #### nk_end
+/// Needs to be called at the end of the window building process to process scaling, scrollbars and general cleanup.
+/// All widget calls after this functions will result in asserts or no state changes
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_end(struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+*/
+NK_API void nk_end(struct nk_context *ctx);
+/*/// #### nk_window_find
+/// Finds and returns a window from passed name
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_window *nk_window_find(struct nk_context *ctx, const char *name);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Window identifier
+///
+/// Returns a `nk_window` struct pointing to the identified window or NULL if
+/// no window with the given name was found
+*/
+NK_API struct nk_window *nk_window_find(struct nk_context *ctx, const char *name);
+/*/// #### nk_window_get_bounds
+/// Returns a rectangle with screen position and size of the currently processed window
+///
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_rect nk_window_get_bounds(const struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns a `nk_rect` struct with window upper left window position and size
+*/
+NK_API struct nk_rect nk_window_get_bounds(const struct nk_context *ctx);
+/*/// #### nk_window_get_position
+/// Returns the position of the currently processed window.
+///
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_vec2 nk_window_get_position(const struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns a `nk_vec2` struct with window upper left position
+*/
+NK_API struct nk_vec2 nk_window_get_position(const struct nk_context *ctx);
+/*/// #### nk_window_get_size
+/// Returns the size with width and height of the currently processed window.
+///
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_vec2 nk_window_get_size(const struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns a `nk_vec2` struct with window width and height
+*/
+NK_API struct nk_vec2 nk_window_get_size(const struct nk_context*);
+/*/// #### nk_window_get_width
+/// Returns the width of the currently processed window.
+///
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// float nk_window_get_width(const struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns the current window width
+*/
+NK_API float nk_window_get_width(const struct nk_context*);
+/*/// #### nk_window_get_height
+/// Returns the height of the currently processed window.
+///
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// float nk_window_get_height(const struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns the current window height
+*/
+NK_API float nk_window_get_height(const struct nk_context*);
+/*/// #### nk_window_get_panel
+/// Returns the underlying panel which contains all processing state of the current window.
+///
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+/// !!! WARNING
+///     Do not keep the returned panel pointer around, it is only valid until `nk_end`
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_panel* nk_window_get_panel(struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns a pointer to window internal `nk_panel` state.
+*/
+NK_API struct nk_panel* nk_window_get_panel(struct nk_context*);
+/*/// #### nk_window_get_content_region
+/// Returns the position and size of the currently visible and non-clipped space
+/// inside the currently processed window.
+///
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_rect nk_window_get_content_region(struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns `nk_rect` struct with screen position and size (no scrollbar offset)
+/// of the visible space inside the current window
+*/
+NK_API struct nk_rect nk_window_get_content_region(struct nk_context*);
+/*/// #### nk_window_get_content_region_min
+/// Returns the upper left position of the currently visible and non-clipped
+/// space inside the currently processed window.
+///
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_vec2 nk_window_get_content_region_min(struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// returns `nk_vec2` struct with  upper left screen position (no scrollbar offset)
+/// of the visible space inside the current window
+*/
+NK_API struct nk_vec2 nk_window_get_content_region_min(struct nk_context*);
+/*/// #### nk_window_get_content_region_max
+/// Returns the lower right screen position of the currently visible and
+/// non-clipped space inside the currently processed window.
+///
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_vec2 nk_window_get_content_region_max(struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns `nk_vec2` struct with lower right screen position (no scrollbar offset)
+/// of the visible space inside the current window
+*/
+NK_API struct nk_vec2 nk_window_get_content_region_max(struct nk_context*);
+/*/// #### nk_window_get_content_region_size
+/// Returns the size of the currently visible and non-clipped space inside the
+/// currently processed window
+///
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_vec2 nk_window_get_content_region_size(struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns `nk_vec2` struct with size the visible space inside the current window
+*/
+NK_API struct nk_vec2 nk_window_get_content_region_size(struct nk_context*);
+/*/// #### nk_window_get_canvas
+/// Returns the draw command buffer. Can be used to draw custom widgets
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+/// !!! WARNING
+///     Do not keep the returned command buffer pointer around it is only valid until `nk_end`
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_command_buffer* nk_window_get_canvas(struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns a pointer to window internal `nk_command_buffer` struct used as
+/// drawing canvas. Can be used to do custom drawing.
+*/
+NK_API struct nk_command_buffer* nk_window_get_canvas(struct nk_context*);
+/*/// #### nk_window_get_scroll
+/// Gets the scroll offset for the current window
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_window_get_scroll(struct nk_context *ctx, nk_uint *offset_x, nk_uint *offset_y);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter    | Description
+/// -------------|-----------------------------------------------------------
+/// __ctx__      | Must point to an previously initialized `nk_context` struct
+/// __offset_x__ | A pointer to the x offset output (or NULL to ignore)
+/// __offset_y__ | A pointer to the y offset output (or NULL to ignore)
+*/
+NK_API void nk_window_get_scroll(struct nk_context*, nk_uint *offset_x, nk_uint *offset_y);
+/*/// #### nk_window_has_focus
+/// Returns if the currently processed window is currently active
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_window_has_focus(const struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns `false(0)` if current window is not active or `true(1)` if it is
+*/
+NK_API int nk_window_has_focus(const struct nk_context*);
+/*/// #### nk_window_is_hovered
+/// Return if the current window is being hovered
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_window_is_hovered(struct nk_context *ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns `true(1)` if current window is hovered or `false(0)` otherwise
+*/
+NK_API int nk_window_is_hovered(struct nk_context*);
+/*/// #### nk_window_is_collapsed
+/// Returns if the window with given name is currently minimized/collapsed
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_window_is_collapsed(struct nk_context *ctx, const char *name);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of window you want to check if it is collapsed
+///
+/// Returns `true(1)` if current window is minimized and `false(0)` if window not
+/// found or is not minimized
+*/
+NK_API int nk_window_is_collapsed(struct nk_context *ctx, const char *name);
+/*/// #### nk_window_is_closed
+/// Returns if the window with given name was closed by calling `nk_close`
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_window_is_closed(struct nk_context *ctx, const char *name);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of window you want to check if it is closed
+///
+/// Returns `true(1)` if current window was closed or `false(0)` window not found or not closed
+*/
+NK_API int nk_window_is_closed(struct nk_context*, const char*);
+/*/// #### nk_window_is_hidden
+/// Returns if the window with given name is hidden
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_window_is_hidden(struct nk_context *ctx, const char *name);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of window you want to check if it is hidden
+///
+/// Returns `true(1)` if current window is hidden or `false(0)` window not found or visible
+*/
+NK_API int nk_window_is_hidden(struct nk_context*, const char*);
+/*/// #### nk_window_is_active
+/// Same as nk_window_has_focus for some reason
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_window_is_active(struct nk_context *ctx, const char *name);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of window you want to check if it is active
+///
+/// Returns `true(1)` if current window is active or `false(0)` window not found or not active
+*/
+NK_API int nk_window_is_active(struct nk_context*, const char*);
+/*/// #### nk_window_is_any_hovered
+/// Returns if the any window is being hovered
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_window_is_any_hovered(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns `true(1)` if any window is hovered or `false(0)` otherwise
+*/
+NK_API int nk_window_is_any_hovered(struct nk_context*);
+/*/// #### nk_item_is_any_active
+/// Returns if the any window is being hovered or any widget is currently active.
+/// Can be used to decide if input should be processed by UI or your specific input handling.
+/// Example could be UI and 3D camera to move inside a 3D space.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_item_is_any_active(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+///
+/// Returns `true(1)` if any window is hovered or any item is active or `false(0)` otherwise
+*/
+NK_API int nk_item_is_any_active(struct nk_context*);
+/*/// #### nk_window_set_bounds
+/// Updates position and size of window with passed in name
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_window_set_bounds(struct nk_context*, const char *name, struct nk_rect bounds);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of the window to modify both position and size
+/// __bounds__  | Must point to a `nk_rect` struct with the new position and size
+*/
+NK_API void nk_window_set_bounds(struct nk_context*, const char *name, struct nk_rect bounds);
+/*/// #### nk_window_set_position
+/// Updates position of window with passed name
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_window_set_position(struct nk_context*, const char *name, struct nk_vec2 pos);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of the window to modify both position
+/// __pos__     | Must point to a `nk_vec2` struct with the new position
+*/
+NK_API void nk_window_set_position(struct nk_context*, const char *name, struct nk_vec2 pos);
+/*/// #### nk_window_set_size
+/// Updates size of window with passed in name
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_window_set_size(struct nk_context*, const char *name, struct nk_vec2);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of the window to modify both window size
+/// __size__    | Must point to a `nk_vec2` struct with new window size
+*/
+NK_API void nk_window_set_size(struct nk_context*, const char *name, struct nk_vec2);
+/*/// #### nk_window_set_focus
+/// Sets the window with given name as active
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_window_set_focus(struct nk_context*, const char *name);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of the window to set focus on
+*/
+NK_API void nk_window_set_focus(struct nk_context*, const char *name);
+/*/// #### nk_window_set_scroll
+/// Sets the scroll offset for the current window
+/// !!! WARNING
+///     Only call this function between calls `nk_begin_xxx` and `nk_end`
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_window_set_scroll(struct nk_context *ctx, nk_uint offset_x, nk_uint offset_y);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter    | Description
+/// -------------|-----------------------------------------------------------
+/// __ctx__      | Must point to an previously initialized `nk_context` struct
+/// __offset_x__ | The x offset to scroll to
+/// __offset_y__ | The y offset to scroll to
+*/
+NK_API void nk_window_set_scroll(struct nk_context*, nk_uint offset_x, nk_uint offset_y);
+/*/// #### nk_window_close
+/// Closes a window and marks it for being freed at the end of the frame
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_window_close(struct nk_context *ctx, const char *name);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of the window to close
+*/
+NK_API void nk_window_close(struct nk_context *ctx, const char *name);
+/*/// #### nk_window_collapse
+/// Updates collapse state of a window with given name
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_window_collapse(struct nk_context*, const char *name, enum nk_collapse_states state);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of the window to close
+/// __state__   | value out of nk_collapse_states section
+*/
+NK_API void nk_window_collapse(struct nk_context*, const char *name, enum nk_collapse_states state);
+/*/// #### nk_window_collapse_if
+/// Updates collapse state of a window with given name if given condition is met
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_window_collapse_if(struct nk_context*, const char *name, enum nk_collapse_states, int cond);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of the window to either collapse or maximize
+/// __state__   | value out of nk_collapse_states section the window should be put into
+/// __cond__    | condition that has to be met to actually commit the collapse state change
+*/
+NK_API void nk_window_collapse_if(struct nk_context*, const char *name, enum nk_collapse_states, int cond);
+/*/// #### nk_window_show
+/// updates visibility state of a window with given name
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_window_show(struct nk_context*, const char *name, enum nk_show_states);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of the window to either collapse or maximize
+/// __state__   | state with either visible or hidden to modify the window with
+*/
+NK_API void nk_window_show(struct nk_context*, const char *name, enum nk_show_states);
+/*/// #### nk_window_show_if
+/// Updates visibility state of a window with given name if a given condition is met
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_window_show_if(struct nk_context*, const char *name, enum nk_show_states, int cond);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __name__    | Identifier of the window to either hide or show
+/// __state__   | state with either visible or hidden to modify the window with
+/// __cond__    | condition that has to be met to actually commit the visbility state change
+*/
+NK_API void nk_window_show_if(struct nk_context*, const char *name, enum nk_show_states, int cond);
+/* =============================================================================
+ *
+ *                                  LAYOUT
+ *
+ * =============================================================================
+/// ### Layouting
+/// Layouting in general describes placing widget inside a window with position and size.
+/// While in this particular implementation there are five different APIs for layouting
+/// each with different trade offs between control and ease of use. <br /><br />
+///
+/// All layouting methods in this library are based around the concept of a row.
+/// A row has a height the window content grows by and a number of columns and each
+/// layouting method specifies how each widget is placed inside the row.
+/// After a row has been allocated by calling a layouting functions and then
+/// filled with widgets will advance an internal pointer over the allocated row. <br /><br />
+///
+/// To actually define a layout you just call the appropriate layouting function
+/// and each subsequent widget call will place the widget as specified. Important
+/// here is that if you define more widgets then columns defined inside the layout
+/// functions it will allocate the next row without you having to make another layouting <br /><br />
+/// call.
+///
+/// Biggest limitation with using all these APIs outside the `nk_layout_space_xxx` API
+/// is that you have to define the row height for each. However the row height
+/// often depends on the height of the font. <br /><br />
+///
+/// To fix that internally nuklear uses a minimum row height that is set to the
+/// height plus padding of currently active font and overwrites the row height
+/// value if zero. <br /><br />
+///
+/// If you manually want to change the minimum row height then
+/// use nk_layout_set_min_row_height, and use nk_layout_reset_min_row_height to
+/// reset it back to be derived from font height. <br /><br />
+///
+/// Also if you change the font in nuklear it will automatically change the minimum
+/// row height for you and. This means if you change the font but still want
+/// a minimum row height smaller than the font you have to repush your value. <br /><br />
+///
+/// For actually more advanced UI I would even recommend using the `nk_layout_space_xxx`
+/// layouting method in combination with a cassowary constraint solver (there are
+/// some versions on github with permissive license model) to take over all control over widget
+/// layouting yourself. However for quick and dirty layouting using all the other layouting
+/// functions should be fine.
+///
+/// #### Usage
+/// 1.  __nk_layout_row_dynamic__<br /><br />
+///     The easiest layouting function is `nk_layout_row_dynamic`. It provides each
+///     widgets with same horizontal space inside the row and dynamically grows
+///     if the owning window grows in width. So the number of columns dictates
+///     the size of each widget dynamically by formula:
+///
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+///     widget_width = (window_width - padding - spacing) * (1/colum_count)
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+///     Just like all other layouting APIs if you define more widget than columns this
+///     library will allocate a new row and keep all layouting parameters previously
+///     defined.
+///
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+///     if (nk_begin_xxx(...) {
+///         // first row with height: 30 composed of two widgets
+///         nk_layout_row_dynamic(&ctx, 30, 2);
+///         nk_widget(...);
+///         nk_widget(...);
+///         //
+///         // second row with same parameter as defined above
+///         nk_widget(...);
+///         nk_widget(...);
+///         //
+///         // third row uses 0 for height which will use auto layouting
+///         nk_layout_row_dynamic(&ctx, 0, 2);
+///         nk_widget(...);
+///         nk_widget(...);
+///     }
+///     nk_end(...);
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// 2.  __nk_layout_row_static__<br /><br />
+///     Another easy layouting function is `nk_layout_row_static`. It provides each
+///     widget with same horizontal pixel width inside the row and does not grow
+///     if the owning window scales smaller or bigger.
+///
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+///     if (nk_begin_xxx(...) {
+///         // first row with height: 30 composed of two widgets with width: 80
+///         nk_layout_row_static(&ctx, 30, 80, 2);
+///         nk_widget(...);
+///         nk_widget(...);
+///         //
+///         // second row with same parameter as defined above
+///         nk_widget(...);
+///         nk_widget(...);
+///         //
+///         // third row uses 0 for height which will use auto layouting
+///         nk_layout_row_static(&ctx, 0, 80, 2);
+///         nk_widget(...);
+///         nk_widget(...);
+///     }
+///     nk_end(...);
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// 3.  __nk_layout_row_xxx__<br /><br />
+///     A little bit more advanced layouting API are functions `nk_layout_row_begin`,
+///     `nk_layout_row_push` and `nk_layout_row_end`. They allow to directly
+///     specify each column pixel or window ratio in a row. It supports either
+///     directly setting per column pixel width or widget window ratio but not
+///     both. Furthermore it is a immediate mode API so each value is directly
+///     pushed before calling a widget. Therefore the layout is not automatically
+///     repeating like the last two layouting functions.
+///
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+///     if (nk_begin_xxx(...) {
+///         // first row with height: 25 composed of two widgets with width 60 and 40
+///         nk_layout_row_begin(ctx, NK_STATIC, 25, 2);
+///         nk_layout_row_push(ctx, 60);
+///         nk_widget(...);
+///         nk_layout_row_push(ctx, 40);
+///         nk_widget(...);
+///         nk_layout_row_end(ctx);
+///         //
+///         // second row with height: 25 composed of two widgets with window ratio 0.25 and 0.75
+///         nk_layout_row_begin(ctx, NK_DYNAMIC, 25, 2);
+///         nk_layout_row_push(ctx, 0.25f);
+///         nk_widget(...);
+///         nk_layout_row_push(ctx, 0.75f);
+///         nk_widget(...);
+///         nk_layout_row_end(ctx);
+///         //
+///         // third row with auto generated height: composed of two widgets with window ratio 0.25 and 0.75
+///         nk_layout_row_begin(ctx, NK_DYNAMIC, 0, 2);
+///         nk_layout_row_push(ctx, 0.25f);
+///         nk_widget(...);
+///         nk_layout_row_push(ctx, 0.75f);
+///         nk_widget(...);
+///         nk_layout_row_end(ctx);
+///     }
+///     nk_end(...);
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// 4.  __nk_layout_row__<br /><br />
+///     The array counterpart to API nk_layout_row_xxx is the single nk_layout_row
+///     functions. Instead of pushing either pixel or window ratio for every widget
+///     it allows to define it by array. The trade of for less control is that
+///     `nk_layout_row` is automatically repeating. Otherwise the behavior is the
+///     same.
+///
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+///     if (nk_begin_xxx(...) {
+///         // two rows with height: 30 composed of two widgets with width 60 and 40
+///         const float size[] = {60,40};
+///         nk_layout_row(ctx, NK_STATIC, 30, 2, ratio);
+///         nk_widget(...);
+///         nk_widget(...);
+///         nk_widget(...);
+///         nk_widget(...);
+///         //
+///         // two rows with height: 30 composed of two widgets with window ratio 0.25 and 0.75
+///         const float ratio[] = {0.25, 0.75};
+///         nk_layout_row(ctx, NK_DYNAMIC, 30, 2, ratio);
+///         nk_widget(...);
+///         nk_widget(...);
+///         nk_widget(...);
+///         nk_widget(...);
+///         //
+///         // two rows with auto generated height composed of two widgets with window ratio 0.25 and 0.75
+///         const float ratio[] = {0.25, 0.75};
+///         nk_layout_row(ctx, NK_DYNAMIC, 30, 2, ratio);
+///         nk_widget(...);
+///         nk_widget(...);
+///         nk_widget(...);
+///         nk_widget(...);
+///     }
+///     nk_end(...);
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// 5.  __nk_layout_row_template_xxx__<br /><br />
+///     The most complex and second most flexible API is a simplified flexbox version without
+///     line wrapping and weights for dynamic widgets. It is an immediate mode API but
+///     unlike `nk_layout_row_xxx` it has auto repeat behavior and needs to be called
+///     before calling the templated widgets.
+///     The row template layout has three different per widget size specifier. The first
+///     one is the `nk_layout_row_template_push_static`  with fixed widget pixel width.
+///     They do not grow if the row grows and will always stay the same.
+///     The second size specifier is `nk_layout_row_template_push_variable`
+///     which defines a minimum widget size but it also can grow if more space is available
+///     not taken by other widgets.
+///     Finally there are dynamic widgets with `nk_layout_row_template_push_dynamic`
+///     which are completely flexible and unlike variable widgets can even shrink
+///     to zero if not enough space is provided.
+///
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+///     if (nk_begin_xxx(...) {
+///         // two rows with height: 30 composed of three widgets
+///         nk_layout_row_template_begin(ctx, 30);
+///         nk_layout_row_template_push_dynamic(ctx);
+///         nk_layout_row_template_push_variable(ctx, 80);
+///         nk_layout_row_template_push_static(ctx, 80);
+///         nk_layout_row_template_end(ctx);
+///         //
+///         // first row
+///         nk_widget(...); // dynamic widget can go to zero if not enough space
+///         nk_widget(...); // variable widget with min 80 pixel but can grow bigger if enough space
+///         nk_widget(...); // static widget with fixed 80 pixel width
+///         //
+///         // second row same layout
+///         nk_widget(...);
+///         nk_widget(...);
+///         nk_widget(...);
+///     }
+///     nk_end(...);
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// 6.  __nk_layout_space_xxx__<br /><br />
+///     Finally the most flexible API directly allows you to place widgets inside the
+///     window. The space layout API is an immediate mode API which does not support
+///     row auto repeat and directly sets position and size of a widget. Position
+///     and size hereby can be either specified as ratio of allocated space or
+///     allocated space local position and pixel size. Since this API is quite
+///     powerful there are a number of utility functions to get the available space
+///     and convert between local allocated space and screen space.
+///
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+///     if (nk_begin_xxx(...) {
+///         // static row with height: 500 (you can set column count to INT_MAX if you don't want to be bothered)
+///         nk_layout_space_begin(ctx, NK_STATIC, 500, INT_MAX);
+///         nk_layout_space_push(ctx, nk_rect(0,0,150,200));
+///         nk_widget(...);
+///         nk_layout_space_push(ctx, nk_rect(200,200,100,200));
+///         nk_widget(...);
+///         nk_layout_space_end(ctx);
+///         //
+///         // dynamic row with height: 500 (you can set column count to INT_MAX if you don't want to be bothered)
+///         nk_layout_space_begin(ctx, NK_DYNAMIC, 500, INT_MAX);
+///         nk_layout_space_push(ctx, nk_rect(0.5,0.5,0.1,0.1));
+///         nk_widget(...);
+///         nk_layout_space_push(ctx, nk_rect(0.7,0.6,0.1,0.1));
+///         nk_widget(...);
+///     }
+///     nk_end(...);
+///     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// #### Reference
+/// Function                                | Description
+/// ----------------------------------------|------------------------------------
+/// nk_layout_set_min_row_height            | Set the currently used minimum row height to a specified value
+/// nk_layout_reset_min_row_height          | Resets the currently used minimum row height to font height
+/// nk_layout_widget_bounds                 | Calculates current width a static layout row can fit inside a window
+/// nk_layout_ratio_from_pixel              | Utility functions to calculate window ratio from pixel size
+//
+/// nk_layout_row_dynamic                   | Current layout is divided into n same sized growing columns
+/// nk_layout_row_static                    | Current layout is divided into n same fixed sized columns
+/// nk_layout_row_begin                     | Starts a new row with given height and number of columns
+/// nk_layout_row_push                      | Pushes another column with given size or window ratio
+/// nk_layout_row_end                       | Finished previously started row
+/// nk_layout_row                           | Specifies row columns in array as either window ratio or size
+//
+/// nk_layout_row_template_begin            | Begins the row template declaration
+/// nk_layout_row_template_push_dynamic     | Adds a dynamic column that dynamically grows and can go to zero if not enough space
+/// nk_layout_row_template_push_variable    | Adds a variable column that dynamically grows but does not shrink below specified pixel width
+/// nk_layout_row_template_push_static      | Adds a static column that does not grow and will always have the same size
+/// nk_layout_row_template_end              | Marks the end of the row template
+//
+/// nk_layout_space_begin                   | Begins a new layouting space that allows to specify each widgets position and size
+/// nk_layout_space_push                    | Pushes position and size of the next widget in own coordinate space either as pixel or ratio
+/// nk_layout_space_end                     | Marks the end of the layouting space
+//
+/// nk_layout_space_bounds                  | Callable after nk_layout_space_begin and returns total space allocated
+/// nk_layout_space_to_screen               | Converts vector from nk_layout_space coordinate space into screen space
+/// nk_layout_space_to_local                | Converts vector from screen space into nk_layout_space coordinates
+/// nk_layout_space_rect_to_screen          | Converts rectangle from nk_layout_space coordinate space into screen space
+/// nk_layout_space_rect_to_local           | Converts rectangle from screen space into nk_layout_space coordinates
+*/
+/*/// #### nk_layout_set_min_row_height
+/// Sets the currently used minimum row height.
+/// !!! WARNING
+///     The passed height needs to include both your preferred row height
+///     as well as padding. No internal padding is added.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_set_min_row_height(struct nk_context*, float height);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+/// __height__  | New minimum row height to be used for auto generating the row height
+*/
+NK_API void nk_layout_set_min_row_height(struct nk_context*, float height);
+/*/// #### nk_layout_reset_min_row_height
+/// Reset the currently used minimum row height back to `font_height + text_padding + padding`
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_reset_min_row_height(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+*/
+NK_API void nk_layout_reset_min_row_height(struct nk_context*);
+/*/// #### nk_layout_widget_bounds
+/// Returns the width of the next row allocate by one of the layouting functions
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_rect nk_layout_widget_bounds(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+///
+/// Return `nk_rect` with both position and size of the next row
+*/
+NK_API struct nk_rect nk_layout_widget_bounds(struct nk_context*);
+/*/// #### nk_layout_ratio_from_pixel
+/// Utility functions to calculate window ratio from pixel size
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// float nk_layout_ratio_from_pixel(struct nk_context*, float pixel_width);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+/// __pixel__   | Pixel_width to convert to window ratio
+///
+/// Returns `nk_rect` with both position and size of the next row
+*/
+NK_API float nk_layout_ratio_from_pixel(struct nk_context*, float pixel_width);
+/*/// #### nk_layout_row_dynamic
+/// Sets current row layout to share horizontal space
+/// between @cols number of widgets evenly. Once called all subsequent widget
+/// calls greater than @cols will allocate a new row with same layout.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_row_dynamic(struct nk_context *ctx, float height, int cols);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+/// __height__  | Holds height of each widget in row or zero for auto layouting
+/// __columns__ | Number of widget inside row
+*/
+NK_API void nk_layout_row_dynamic(struct nk_context *ctx, float height, int cols);
+/*/// #### nk_layout_row_static
+/// Sets current row layout to fill @cols number of widgets
+/// in row with same @item_width horizontal size. Once called all subsequent widget
+/// calls greater than @cols will allocate a new row with same layout.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_row_static(struct nk_context *ctx, float height, int item_width, int cols);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+/// __height__  | Holds height of each widget in row or zero for auto layouting
+/// __width__   | Holds pixel width of each widget in the row
+/// __columns__ | Number of widget inside row
+*/
+NK_API void nk_layout_row_static(struct nk_context *ctx, float height, int item_width, int cols);
+/*/// #### nk_layout_row_begin
+/// Starts a new dynamic or fixed row with given height and columns.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_row_begin(struct nk_context *ctx, enum nk_layout_format fmt, float row_height, int cols);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+/// __fmt__     | either `NK_DYNAMIC` for window ratio or `NK_STATIC` for fixed size columns
+/// __height__  | holds height of each widget in row or zero for auto layouting
+/// __columns__ | Number of widget inside row
+*/
+NK_API void nk_layout_row_begin(struct nk_context *ctx, enum nk_layout_format fmt, float row_height, int cols);
+/*/// #### nk_layout_row_push
+/// Specifies either window ratio or width of a single column
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_row_push(struct nk_context*, float value);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+/// __value__   | either a window ratio or fixed width depending on @fmt in previous `nk_layout_row_begin` call
+*/
+NK_API void nk_layout_row_push(struct nk_context*, float value);
+/*/// #### nk_layout_row_end
+/// Finished previously started row
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_row_end(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+*/
+NK_API void nk_layout_row_end(struct nk_context*);
+/*/// #### nk_layout_row
+/// Specifies row columns in array as either window ratio or size
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_row(struct nk_context*, enum nk_layout_format, float height, int cols, const float *ratio);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+/// __fmt__     | Either `NK_DYNAMIC` for window ratio or `NK_STATIC` for fixed size columns
+/// __height__  | Holds height of each widget in row or zero for auto layouting
+/// __columns__ | Number of widget inside row
+*/
+NK_API void nk_layout_row(struct nk_context*, enum nk_layout_format, float height, int cols, const float *ratio);
+/*/// #### nk_layout_row_template_begin
+/// Begins the row template declaration
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_row_template_begin(struct nk_context*, float row_height);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+/// __height__  | Holds height of each widget in row or zero for auto layouting
+*/
+NK_API void nk_layout_row_template_begin(struct nk_context*, float row_height);
+/*/// #### nk_layout_row_template_push_dynamic
+/// Adds a dynamic column that dynamically grows and can go to zero if not enough space
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_row_template_push_dynamic(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+/// __height__  | Holds height of each widget in row or zero for auto layouting
+*/
+NK_API void nk_layout_row_template_push_dynamic(struct nk_context*);
+/*/// #### nk_layout_row_template_push_variable
+/// Adds a variable column that dynamically grows but does not shrink below specified pixel width
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_row_template_push_variable(struct nk_context*, float min_width);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+/// __width__   | Holds the minimum pixel width the next column must always be
+*/
+NK_API void nk_layout_row_template_push_variable(struct nk_context*, float min_width);
+/*/// #### nk_layout_row_template_push_static
+/// Adds a static column that does not grow and will always have the same size
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_row_template_push_static(struct nk_context*, float width);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+/// __width__   | Holds the absolute pixel width value the next column must be
+*/
+NK_API void nk_layout_row_template_push_static(struct nk_context*, float width);
+/*/// #### nk_layout_row_template_end
+/// Marks the end of the row template
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_row_template_end(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+*/
+NK_API void nk_layout_row_template_end(struct nk_context*);
+/*/// #### nk_layout_space_begin
+/// Begins a new layouting space that allows to specify each widgets position and size.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_space_begin(struct nk_context*, enum nk_layout_format, float height, int widget_count);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_begin_xxx`
+/// __fmt__     | Either `NK_DYNAMIC` for window ratio or `NK_STATIC` for fixed size columns
+/// __height__  | Holds height of each widget in row or zero for auto layouting
+/// __columns__ | Number of widgets inside row
+*/
+NK_API void nk_layout_space_begin(struct nk_context*, enum nk_layout_format, float height, int widget_count);
+/*/// #### nk_layout_space_push
+/// Pushes position and size of the next widget in own coordinate space either as pixel or ratio
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_space_push(struct nk_context *ctx, struct nk_rect bounds);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_layout_space_begin`
+/// __bounds__  | Position and size in laoyut space local coordinates
+*/
+NK_API void nk_layout_space_push(struct nk_context*, struct nk_rect bounds);
+/*/// #### nk_layout_space_end
+/// Marks the end of the layout space
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_layout_space_end(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_layout_space_begin`
+*/
+NK_API void nk_layout_space_end(struct nk_context*);
+/*/// #### nk_layout_space_bounds
+/// Utility function to calculate total space allocated for `nk_layout_space`
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_rect nk_layout_space_bounds(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_layout_space_begin`
+///
+/// Returns `nk_rect` holding the total space allocated
+*/
+NK_API struct nk_rect nk_layout_space_bounds(struct nk_context*);
+/*/// #### nk_layout_space_to_screen
+/// Converts vector from nk_layout_space coordinate space into screen space
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_vec2 nk_layout_space_to_screen(struct nk_context*, struct nk_vec2);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_layout_space_begin`
+/// __vec__     | Position to convert from layout space into screen coordinate space
+///
+/// Returns transformed `nk_vec2` in screen space coordinates
+*/
+NK_API struct nk_vec2 nk_layout_space_to_screen(struct nk_context*, struct nk_vec2);
+/*/// #### nk_layout_space_to_local
+/// Converts vector from layout space into screen space
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_vec2 nk_layout_space_to_local(struct nk_context*, struct nk_vec2);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_layout_space_begin`
+/// __vec__     | Position to convert from screen space into layout coordinate space
+///
+/// Returns transformed `nk_vec2` in layout space coordinates
+*/
+NK_API struct nk_vec2 nk_layout_space_to_local(struct nk_context*, struct nk_vec2);
+/*/// #### nk_layout_space_rect_to_screen
+/// Converts rectangle from screen space into layout space
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_rect nk_layout_space_rect_to_screen(struct nk_context*, struct nk_rect);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_layout_space_begin`
+/// __bounds__  | Rectangle to convert from layout space into screen space
+///
+/// Returns transformed `nk_rect` in screen space coordinates
+*/
+NK_API struct nk_rect nk_layout_space_rect_to_screen(struct nk_context*, struct nk_rect);
+/*/// #### nk_layout_space_rect_to_local
+/// Converts rectangle from layout space into screen space
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_rect nk_layout_space_rect_to_local(struct nk_context*, struct nk_rect);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after call `nk_layout_space_begin`
+/// __bounds__  | Rectangle to convert from layout space into screen space
+///
+/// Returns transformed `nk_rect` in layout space coordinates
+*/
+NK_API struct nk_rect nk_layout_space_rect_to_local(struct nk_context*, struct nk_rect);
+/* =============================================================================
+ *
+ *                                  GROUP
+ *
+ * =============================================================================
+/// ### Groups
+/// Groups are basically windows inside windows. They allow to subdivide space
+/// in a window to layout widgets as a group. Almost all more complex widget
+/// layouting requirements can be solved using groups and basic layouting
+/// fuctionality. Groups just like windows are identified by an unique name and
+/// internally keep track of scrollbar offsets by default. However additional
+/// versions are provided to directly manage the scrollbar.
+///
+/// #### Usage
+/// To create a group you have to call one of the three `nk_group_begin_xxx`
+/// functions to start group declarations and `nk_group_end` at the end. Furthermore it
+/// is required to check the return value of `nk_group_begin_xxx` and only process
+/// widgets inside the window if the value is not 0.
+/// Nesting groups is possible and even encouraged since many layouting schemes
+/// can only be achieved by nesting. Groups, unlike windows, need `nk_group_end`
+/// to be only called if the corosponding `nk_group_begin_xxx` call does not return 0:
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// if (nk_group_begin_xxx(ctx, ...) {
+///     // [... widgets ...]
+///     nk_group_end(ctx);
+/// }
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// In the grand concept groups can be called after starting a window
+/// with `nk_begin_xxx` and before calling `nk_end`:
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// struct nk_context ctx;
+/// nk_init_xxx(&ctx, ...);
+/// while (1) {
+///     // Input
+///     Event evt;
+///     nk_input_begin(&ctx);
+///     while (GetEvent(&evt)) {
+///         if (evt.type == MOUSE_MOVE)
+///             nk_input_motion(&ctx, evt.motion.x, evt.motion.y);
+///         else if (evt.type == [...]) {
+///             nk_input_xxx(...);
+///         }
+///     }
+///     nk_input_end(&ctx);
+///     //
+///     // Window
+///     if (nk_begin_xxx(...) {
+///         // [...widgets...]
+///         nk_layout_row_dynamic(...);
+///         if (nk_group_begin_xxx(ctx, ...) {
+///             //[... widgets ...]
+///             nk_group_end(ctx);
+///         }
+///     }
+///     nk_end(ctx);
+///     //
+///     // Draw
+///     const struct nk_command *cmd = 0;
+///     nk_foreach(cmd, &ctx) {
+///     switch (cmd->type) {
+///     case NK_COMMAND_LINE:
+///         your_draw_line_function(...)
+///         break;
+///     case NK_COMMAND_RECT
+///         your_draw_rect_function(...)
+///         break;
+///     case ...:
+///         // [...]
+///     }
+///     nk_clear(&ctx);
+/// }
+/// nk_free(&ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+/// #### Reference
+/// Function                        | Description
+/// --------------------------------|-------------------------------------------
+/// nk_group_begin                  | Start a new group with internal scrollbar handling
+/// nk_group_begin_titled           | Start a new group with separeted name and title and internal scrollbar handling
+/// nk_group_end                    | Ends a group. Should only be called if nk_group_begin returned non-zero
+/// nk_group_scrolled_offset_begin  | Start a new group with manual separated handling of scrollbar x- and y-offset
+/// nk_group_scrolled_begin         | Start a new group with manual scrollbar handling
+/// nk_group_scrolled_end           | Ends a group with manual scrollbar handling. Should only be called if nk_group_begin returned non-zero
+/// nk_group_get_scroll             | Gets the scroll offset for the given group
+/// nk_group_set_scroll             | Sets the scroll offset for the given group
+*/
+/*/// #### nk_group_begin
+/// Starts a new widget group. Requires a previous layouting function to specify a pos/size.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_group_begin(struct nk_context*, const char *title, nk_flags);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __title__   | Must be an unique identifier for this group that is also used for the group header
+/// __flags__   | Window flags defined in the nk_panel_flags section with a number of different group behaviors
+///
+/// Returns `true(1)` if visible and fillable with widgets or `false(0)` otherwise
+*/
+NK_API int nk_group_begin(struct nk_context*, const char *title, nk_flags);
+/*/// #### nk_group_begin_titled
+/// Starts a new widget group. Requires a previous layouting function to specify a pos/size.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_group_begin_titled(struct nk_context*, const char *name, const char *title, nk_flags);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __id__      | Must be an unique identifier for this group
+/// __title__   | Group header title
+/// __flags__   | Window flags defined in the nk_panel_flags section with a number of different group behaviors
+///
+/// Returns `true(1)` if visible and fillable with widgets or `false(0)` otherwise
+*/
+NK_API int nk_group_begin_titled(struct nk_context*, const char *name, const char *title, nk_flags);
+/*/// #### nk_group_end
+/// Ends a widget group
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_group_end(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+*/
+NK_API void nk_group_end(struct nk_context*);
+/*/// #### nk_group_scrolled_offset_begin
+/// starts a new widget group. requires a previous layouting function to specify
+/// a size. Does not keep track of scrollbar.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_group_scrolled_offset_begin(struct nk_context*, nk_uint *x_offset, nk_uint *y_offset, const char *title, nk_flags flags);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __x_offset__| Scrollbar x-offset to offset all widgets inside the group horizontally.
+/// __y_offset__| Scrollbar y-offset to offset all widgets inside the group vertically
+/// __title__   | Window unique group title used to both identify and display in the group header
+/// __flags__   | Window flags from the nk_panel_flags section
+///
+/// Returns `true(1)` if visible and fillable with widgets or `false(0)` otherwise
+*/
+NK_API int nk_group_scrolled_offset_begin(struct nk_context*, nk_uint *x_offset, nk_uint *y_offset, const char *title, nk_flags flags);
+/*/// #### nk_group_scrolled_begin
+/// Starts a new widget group. requires a previous
+/// layouting function to specify a size. Does not keep track of scrollbar.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_group_scrolled_begin(struct nk_context*, struct nk_scroll *off, const char *title, nk_flags);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __off__     | Both x- and y- scroll offset. Allows for manual scrollbar control
+/// __title__   | Window unique group title used to both identify and display in the group header
+/// __flags__   | Window flags from nk_panel_flags section
+///
+/// Returns `true(1)` if visible and fillable with widgets or `false(0)` otherwise
+*/
+NK_API int nk_group_scrolled_begin(struct nk_context*, struct nk_scroll *off, const char *title, nk_flags);
+/*/// #### nk_group_scrolled_end
+/// Ends a widget group after calling nk_group_scrolled_offset_begin or nk_group_scrolled_begin.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_group_scrolled_end(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+*/
+NK_API void nk_group_scrolled_end(struct nk_context*);
+/*/// #### nk_group_get_scroll
+/// Gets the scroll position of the given group.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_group_get_scroll(struct nk_context*, const char *id, nk_uint *x_offset, nk_uint *y_offset);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter    | Description
+/// -------------|-----------------------------------------------------------
+/// __ctx__      | Must point to an previously initialized `nk_context` struct
+/// __id__       | The id of the group to get the scroll position of
+/// __x_offset__ | A pointer to the x offset output (or NULL to ignore)
+/// __y_offset__ | A pointer to the y offset output (or NULL to ignore)
+*/
+NK_API void nk_group_get_scroll(struct nk_context*, const char *id, nk_uint *x_offset, nk_uint *y_offset);
+/*/// #### nk_group_set_scroll
+/// Sets the scroll position of the given group.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_group_set_scroll(struct nk_context*, const char *id, nk_uint x_offset, nk_uint y_offset);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter    | Description
+/// -------------|-----------------------------------------------------------
+/// __ctx__      | Must point to an previously initialized `nk_context` struct
+/// __id__       | The id of the group to scroll
+/// __x_offset__ | The x offset to scroll to
+/// __y_offset__ | The y offset to scroll to
+*/
+NK_API void nk_group_set_scroll(struct nk_context*, const char *id, nk_uint x_offset, nk_uint y_offset);
+/* =============================================================================
+ *
+ *                                  TREE
+ *
+ * =============================================================================
+/// ### Tree
+/// Trees represent two different concept. First the concept of a collapsable
+/// UI section that can be either in a hidden or visibile state. They allow the UI
+/// user to selectively minimize the current set of visible UI to comprehend.
+/// The second concept are tree widgets for visual UI representation of trees.<br /><br />
+///
+/// Trees thereby can be nested for tree representations and multiple nested
+/// collapsable UI sections. All trees are started by calling of the
+/// `nk_tree_xxx_push_tree` functions and ended by calling one of the
+/// `nk_tree_xxx_pop_xxx()` functions. Each starting functions takes a title label
+/// and optionally an image to be displayed and the initial collapse state from
+/// the nk_collapse_states section.<br /><br />
+///
+/// The runtime state of the tree is either stored outside the library by the caller
+/// or inside which requires a unique ID. The unique ID can either be generated
+/// automatically from `__FILE__` and `__LINE__` with function `nk_tree_push`,
+/// by `__FILE__` and a user provided ID generated for example by loop index with
+/// function `nk_tree_push_id` or completely provided from outside by user with
+/// function `nk_tree_push_hashed`.
+///
+/// #### Usage
+/// To create a tree you have to call one of the seven `nk_tree_xxx_push_xxx`
+/// functions to start a collapsable UI section and `nk_tree_xxx_pop` to mark the
+/// end.
+/// Each starting function will either return `false(0)` if the tree is collapsed
+/// or hidden and therefore does not need to be filled with content or `true(1)`
+/// if visible and required to be filled.
+///
+/// !!! Note
+///     The tree header does not require and layouting function and instead
+///     calculates a auto height based on the currently used font size
+///
+/// The tree ending functions only need to be called if the tree content is
+/// actually visible. So make sure the tree push function is guarded by `if`
+/// and the pop call is only taken if the tree is visible.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// if (nk_tree_push(ctx, NK_TREE_TAB, "Tree", NK_MINIMIZED)) {
+///     nk_layout_row_dynamic(...);
+///     nk_widget(...);
+///     nk_tree_pop(ctx);
+/// }
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// #### Reference
+/// Function                    | Description
+/// ----------------------------|-------------------------------------------
+/// nk_tree_push                | Start a collapsable UI section with internal state management
+/// nk_tree_push_id             | Start a collapsable UI section with internal state management callable in a look
+/// nk_tree_push_hashed         | Start a collapsable UI section with internal state management with full control over internal unique ID use to store state
+/// nk_tree_image_push          | Start a collapsable UI section with image and label header
+/// nk_tree_image_push_id       | Start a collapsable UI section with image and label header and internal state management callable in a look
+/// nk_tree_image_push_hashed   | Start a collapsable UI section with image and label header and internal state management with full control over internal unique ID use to store state
+/// nk_tree_pop                 | Ends a collapsable UI section
+//
+/// nk_tree_state_push          | Start a collapsable UI section with external state management
+/// nk_tree_state_image_push    | Start a collapsable UI section with image and label header and external state management
+/// nk_tree_state_pop           | Ends a collapsabale UI section
+///
+/// #### nk_tree_type
+/// Flag            | Description
+/// ----------------|----------------------------------------
+/// NK_TREE_NODE    | Highlighted tree header to mark a collapsable UI section
+/// NK_TREE_TAB     | Non-highighted tree header closer to tree representations
+*/
+/*/// #### nk_tree_push
+/// Starts a collapsable UI section with internal state management
+/// !!! WARNING
+///     To keep track of the runtime tree collapsable state this function uses
+///     defines `__FILE__` and `__LINE__` to generate a unique ID. If you want
+///     to call this function in a loop please use `nk_tree_push_id` or
+///     `nk_tree_push_hashed` instead.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// #define nk_tree_push(ctx, type, title, state)
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __type__    | Value from the nk_tree_type section to visually mark a tree node header as either a collapseable UI section or tree node
+/// __title__   | Label printed in the tree header
+/// __state__   | Initial tree state value out of nk_collapse_states
+///
+/// Returns `true(1)` if visible and fillable with widgets or `false(0)` otherwise
+*/
+#define nk_tree_push(ctx, type, title, state) nk_tree_push_hashed(ctx, type, title, state, NK_FILE_LINE,nk_strlen(NK_FILE_LINE),__LINE__)
+/*/// #### nk_tree_push_id
+/// Starts a collapsable UI section with internal state management callable in a look
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// #define nk_tree_push_id(ctx, type, title, state, id)
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __type__    | Value from the nk_tree_type section to visually mark a tree node header as either a collapseable UI section or tree node
+/// __title__   | Label printed in the tree header
+/// __state__   | Initial tree state value out of nk_collapse_states
+/// __id__      | Loop counter index if this function is called in a loop
+///
+/// Returns `true(1)` if visible and fillable with widgets or `false(0)` otherwise
+*/
+#define nk_tree_push_id(ctx, type, title, state, id) nk_tree_push_hashed(ctx, type, title, state, NK_FILE_LINE,nk_strlen(NK_FILE_LINE),id)
+/*/// #### nk_tree_push_hashed
+/// Start a collapsable UI section with internal state management with full
+/// control over internal unique ID used to store state
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_tree_push_hashed(struct nk_context*, enum nk_tree_type, const char *title, enum nk_collapse_states initial_state, const char *hash, int len,int seed);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __type__    | Value from the nk_tree_type section to visually mark a tree node header as either a collapseable UI section or tree node
+/// __title__   | Label printed in the tree header
+/// __state__   | Initial tree state value out of nk_collapse_states
+/// __hash__    | Memory block or string to generate the ID from
+/// __len__     | Size of passed memory block or string in __hash__
+/// __seed__    | Seeding value if this function is called in a loop or default to `0`
+///
+/// Returns `true(1)` if visible and fillable with widgets or `false(0)` otherwise
+*/
+NK_API int nk_tree_push_hashed(struct nk_context*, enum nk_tree_type, const char *title, enum nk_collapse_states initial_state, const char *hash, int len,int seed);
+/*/// #### nk_tree_image_push
+/// Start a collapsable UI section with image and label header
+/// !!! WARNING
+///     To keep track of the runtime tree collapsable state this function uses
+///     defines `__FILE__` and `__LINE__` to generate a unique ID. If you want
+///     to call this function in a loop please use `nk_tree_image_push_id` or
+///     `nk_tree_image_push_hashed` instead.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// #define nk_tree_image_push(ctx, type, img, title, state)
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __type__    | Value from the nk_tree_type section to visually mark a tree node header as either a collapseable UI section or tree node
+/// __img__     | Image to display inside the header on the left of the label
+/// __title__   | Label printed in the tree header
+/// __state__   | Initial tree state value out of nk_collapse_states
+///
+/// Returns `true(1)` if visible and fillable with widgets or `false(0)` otherwise
+*/
+#define nk_tree_image_push(ctx, type, img, title, state) nk_tree_image_push_hashed(ctx, type, img, title, state, NK_FILE_LINE,nk_strlen(NK_FILE_LINE),__LINE__)
+/*/// #### nk_tree_image_push_id
+/// Start a collapsable UI section with image and label header and internal state
+/// management callable in a look
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// #define nk_tree_image_push_id(ctx, type, img, title, state, id)
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __type__    | Value from the nk_tree_type section to visually mark a tree node header as either a collapseable UI section or tree node
+/// __img__     | Image to display inside the header on the left of the label
+/// __title__   | Label printed in the tree header
+/// __state__   | Initial tree state value out of nk_collapse_states
+/// __id__      | Loop counter index if this function is called in a loop
+///
+/// Returns `true(1)` if visible and fillable with widgets or `false(0)` otherwise
+*/
+#define nk_tree_image_push_id(ctx, type, img, title, state, id) nk_tree_image_push_hashed(ctx, type, img, title, state, NK_FILE_LINE,nk_strlen(NK_FILE_LINE),id)
+/*/// #### nk_tree_image_push_hashed
+/// Start a collapsable UI section with internal state management with full
+/// control over internal unique ID used to store state
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_tree_image_push_hashed(struct nk_context*, enum nk_tree_type, struct nk_image, const char *title, enum nk_collapse_states initial_state, const char *hash, int len,int seed);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct
+/// __type__    | Value from the nk_tree_type section to visually mark a tree node header as either a collapseable UI section or tree node
+/// __img__     | Image to display inside the header on the left of the label
+/// __title__   | Label printed in the tree header
+/// __state__   | Initial tree state value out of nk_collapse_states
+/// __hash__    | Memory block or string to generate the ID from
+/// __len__     | Size of passed memory block or string in __hash__
+/// __seed__    | Seeding value if this function is called in a loop or default to `0`
+///
+/// Returns `true(1)` if visible and fillable with widgets or `false(0)` otherwise
+*/
+NK_API int nk_tree_image_push_hashed(struct nk_context*, enum nk_tree_type, struct nk_image, const char *title, enum nk_collapse_states initial_state, const char *hash, int len,int seed);
+/*/// #### nk_tree_pop
+/// Ends a collapsabale UI section
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_tree_pop(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after calling `nk_tree_xxx_push_xxx`
+*/
+NK_API void nk_tree_pop(struct nk_context*);
+/*/// #### nk_tree_state_push
+/// Start a collapsable UI section with external state management
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_tree_state_push(struct nk_context*, enum nk_tree_type, const char *title, enum nk_collapse_states *state);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after calling `nk_tree_xxx_push_xxx`
+/// __type__    | Value from the nk_tree_type section to visually mark a tree node header as either a collapseable UI section or tree node
+/// __title__   | Label printed in the tree header
+/// __state__   | Persistent state to update
+///
+/// Returns `true(1)` if visible and fillable with widgets or `false(0)` otherwise
+*/
+NK_API int nk_tree_state_push(struct nk_context*, enum nk_tree_type, const char *title, enum nk_collapse_states *state);
+/*/// #### nk_tree_state_image_push
+/// Start a collapsable UI section with image and label header and external state management
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_tree_state_image_push(struct nk_context*, enum nk_tree_type, struct nk_image, const char *title, enum nk_collapse_states *state);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after calling `nk_tree_xxx_push_xxx`
+/// __img__     | Image to display inside the header on the left of the label
+/// __type__    | Value from the nk_tree_type section to visually mark a tree node header as either a collapseable UI section or tree node
+/// __title__   | Label printed in the tree header
+/// __state__   | Persistent state to update
+///
+/// Returns `true(1)` if visible and fillable with widgets or `false(0)` otherwise
+*/
+NK_API int nk_tree_state_image_push(struct nk_context*, enum nk_tree_type, struct nk_image, const char *title, enum nk_collapse_states *state);
+/*/// #### nk_tree_state_pop
+/// Ends a collapsabale UI section
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_tree_state_pop(struct nk_context*);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter   | Description
+/// ------------|-----------------------------------------------------------
+/// __ctx__     | Must point to an previously initialized `nk_context` struct after calling `nk_tree_xxx_push_xxx`
+*/
+NK_API void nk_tree_state_pop(struct nk_context*);
+
+#define nk_tree_element_push(ctx, type, title, state, sel) nk_tree_element_push_hashed(ctx, type, title, state, sel, NK_FILE_LINE,nk_strlen(NK_FILE_LINE),__LINE__)
+#define nk_tree_element_push_id(ctx, type, title, state, sel, id) nk_tree_element_push_hashed(ctx, type, title, state, sel, NK_FILE_LINE,nk_strlen(NK_FILE_LINE),id)
+NK_API int nk_tree_element_push_hashed(struct nk_context*, enum nk_tree_type, const char *title, enum nk_collapse_states initial_state, int *selected, const char *hash, int len, int seed);
+NK_API int nk_tree_element_image_push_hashed(struct nk_context*, enum nk_tree_type, struct nk_image, const char *title, enum nk_collapse_states initial_state, int *selected, const char *hash, int len,int seed);
+NK_API void nk_tree_element_pop(struct nk_context*);
+
+/* =============================================================================
+ *
+ *                                  LIST VIEW
+ *
+ * ============================================================================= */
+struct nk_list_view {
+/* public: */
+    int begin, end, count;
+/* private: */
+    int total_height;
+    struct nk_context *ctx;
+    nk_uint *scroll_pointer;
+    nk_uint scroll_value;
+};
+NK_API int nk_list_view_begin(struct nk_context*, struct nk_list_view *out, const char *id, nk_flags, int row_height, int row_count);
+NK_API void nk_list_view_end(struct nk_list_view*);
+/* =============================================================================
+ *
+ *                                  WIDGET
+ *
+ * ============================================================================= */
+enum nk_widget_layout_states {
+    NK_WIDGET_INVALID, /* The widget cannot be seen and is completely out of view */
+    NK_WIDGET_VALID, /* The widget is completely inside the window and can be updated and drawn */
+    NK_WIDGET_ROM /* The widget is partially visible and cannot be updated */
+};
+enum nk_widget_states {
+    NK_WIDGET_STATE_MODIFIED    = NK_FLAG(1),
+    NK_WIDGET_STATE_INACTIVE    = NK_FLAG(2), /* widget is neither active nor hovered */
+    NK_WIDGET_STATE_ENTERED     = NK_FLAG(3), /* widget has been hovered on the current frame */
+    NK_WIDGET_STATE_HOVER       = NK_FLAG(4), /* widget is being hovered */
+    NK_WIDGET_STATE_ACTIVED     = NK_FLAG(5),/* widget is currently activated */
+    NK_WIDGET_STATE_LEFT        = NK_FLAG(6), /* widget is from this frame on not hovered anymore */
+    NK_WIDGET_STATE_HOVERED     = NK_WIDGET_STATE_HOVER|NK_WIDGET_STATE_MODIFIED, /* widget is being hovered */
+    NK_WIDGET_STATE_ACTIVE      = NK_WIDGET_STATE_ACTIVED|NK_WIDGET_STATE_MODIFIED /* widget is currently activated */
+};
+NK_API enum nk_widget_layout_states nk_widget(struct nk_rect*, const struct nk_context*);
+NK_API enum nk_widget_layout_states nk_widget_fitting(struct nk_rect*, struct nk_context*, struct nk_vec2);
+NK_API struct nk_rect nk_widget_bounds(struct nk_context*);
+NK_API struct nk_vec2 nk_widget_position(struct nk_context*);
+NK_API struct nk_vec2 nk_widget_size(struct nk_context*);
+NK_API float nk_widget_width(struct nk_context*);
+NK_API float nk_widget_height(struct nk_context*);
+NK_API int nk_widget_is_hovered(struct nk_context*);
+NK_API int nk_widget_is_mouse_clicked(struct nk_context*, enum nk_buttons);
+NK_API int nk_widget_has_mouse_click_down(struct nk_context*, enum nk_buttons, int down);
+NK_API void nk_spacing(struct nk_context*, int cols);
+/* =============================================================================
+ *
+ *                                  TEXT
+ *
+ * ============================================================================= */
+enum nk_text_align {
+    NK_TEXT_ALIGN_LEFT        = 0x01,
+    NK_TEXT_ALIGN_CENTERED    = 0x02,
+    NK_TEXT_ALIGN_RIGHT       = 0x04,
+    NK_TEXT_ALIGN_TOP         = 0x08,
+    NK_TEXT_ALIGN_MIDDLE      = 0x10,
+    NK_TEXT_ALIGN_BOTTOM      = 0x20
+};
+enum nk_text_alignment {
+    NK_TEXT_LEFT        = NK_TEXT_ALIGN_MIDDLE|NK_TEXT_ALIGN_LEFT,
+    NK_TEXT_CENTERED    = NK_TEXT_ALIGN_MIDDLE|NK_TEXT_ALIGN_CENTERED,
+    NK_TEXT_RIGHT       = NK_TEXT_ALIGN_MIDDLE|NK_TEXT_ALIGN_RIGHT
+};
+NK_API void nk_text(struct nk_context*, const char*, int, nk_flags);
+NK_API void nk_text_colored(struct nk_context*, const char*, int, nk_flags, struct nk_color);
+NK_API void nk_text_wrap(struct nk_context*, const char*, int);
+NK_API void nk_text_wrap_colored(struct nk_context*, const char*, int, struct nk_color);
+NK_API void nk_label(struct nk_context*, const char*, nk_flags align);
+NK_API void nk_label_colored(struct nk_context*, const char*, nk_flags align, struct nk_color);
+NK_API void nk_label_wrap(struct nk_context*, const char*);
+NK_API void nk_label_colored_wrap(struct nk_context*, const char*, struct nk_color);
+NK_API void nk_image(struct nk_context*, struct nk_image);
+NK_API void nk_image_color(struct nk_context*, struct nk_image, struct nk_color);
+#ifdef NK_INCLUDE_STANDARD_VARARGS
+NK_API void nk_labelf(struct nk_context*, nk_flags, NK_PRINTF_FORMAT_STRING const char*, ...) NK_PRINTF_VARARG_FUNC(3);
+NK_API void nk_labelf_colored(struct nk_context*, nk_flags, struct nk_color, NK_PRINTF_FORMAT_STRING const char*,...) NK_PRINTF_VARARG_FUNC(4);
+NK_API void nk_labelf_wrap(struct nk_context*, NK_PRINTF_FORMAT_STRING const char*,...) NK_PRINTF_VARARG_FUNC(2);
+NK_API void nk_labelf_colored_wrap(struct nk_context*, struct nk_color, NK_PRINTF_FORMAT_STRING const char*,...) NK_PRINTF_VARARG_FUNC(3);
+NK_API void nk_labelfv(struct nk_context*, nk_flags, NK_PRINTF_FORMAT_STRING const char*, va_list) NK_PRINTF_VALIST_FUNC(3);
+NK_API void nk_labelfv_colored(struct nk_context*, nk_flags, struct nk_color, NK_PRINTF_FORMAT_STRING const char*, va_list) NK_PRINTF_VALIST_FUNC(4);
+NK_API void nk_labelfv_wrap(struct nk_context*, NK_PRINTF_FORMAT_STRING const char*, va_list) NK_PRINTF_VALIST_FUNC(2);
+NK_API void nk_labelfv_colored_wrap(struct nk_context*, struct nk_color, NK_PRINTF_FORMAT_STRING const char*, va_list) NK_PRINTF_VALIST_FUNC(3);
+NK_API void nk_value_bool(struct nk_context*, const char *prefix, int);
+NK_API void nk_value_int(struct nk_context*, const char *prefix, int);
+NK_API void nk_value_uint(struct nk_context*, const char *prefix, unsigned int);
+NK_API void nk_value_float(struct nk_context*, const char *prefix, float);
+NK_API void nk_value_color_byte(struct nk_context*, const char *prefix, struct nk_color);
+NK_API void nk_value_color_float(struct nk_context*, const char *prefix, struct nk_color);
+NK_API void nk_value_color_hex(struct nk_context*, const char *prefix, struct nk_color);
+#endif
+/* =============================================================================
+ *
+ *                                  BUTTON
+ *
+ * ============================================================================= */
+NK_API int nk_button_text(struct nk_context*, const char *title, int len);
+NK_API int nk_button_label(struct nk_context*, const char *title);
+NK_API int nk_button_color(struct nk_context*, struct nk_color);
+NK_API int nk_button_symbol(struct nk_context*, enum nk_symbol_type);
+NK_API int nk_button_image(struct nk_context*, struct nk_image img);
+NK_API int nk_button_symbol_label(struct nk_context*, enum nk_symbol_type, const char*, nk_flags text_alignment);
+NK_API int nk_button_symbol_text(struct nk_context*, enum nk_symbol_type, const char*, int, nk_flags alignment);
+NK_API int nk_button_image_label(struct nk_context*, struct nk_image img, const char*, nk_flags text_alignment);
+NK_API int nk_button_image_text(struct nk_context*, struct nk_image img, const char*, int, nk_flags alignment);
+NK_API int nk_button_text_styled(struct nk_context*, const struct nk_style_button*, const char *title, int len);
+NK_API int nk_button_label_styled(struct nk_context*, const struct nk_style_button*, const char *title);
+NK_API int nk_button_symbol_styled(struct nk_context*, const struct nk_style_button*, enum nk_symbol_type);
+NK_API int nk_button_image_styled(struct nk_context*, const struct nk_style_button*, struct nk_image img);
+NK_API int nk_button_symbol_text_styled(struct nk_context*,const struct nk_style_button*, enum nk_symbol_type, const char*, int, nk_flags alignment);
+NK_API int nk_button_symbol_label_styled(struct nk_context *ctx, const struct nk_style_button *style, enum nk_symbol_type symbol, const char *title, nk_flags align);
+NK_API int nk_button_image_label_styled(struct nk_context*,const struct nk_style_button*, struct nk_image img, const char*, nk_flags text_alignment);
+NK_API int nk_button_image_text_styled(struct nk_context*,const struct nk_style_button*, struct nk_image img, const char*, int, nk_flags alignment);
+NK_API void nk_button_set_behavior(struct nk_context*, enum nk_button_behavior);
+NK_API int nk_button_push_behavior(struct nk_context*, enum nk_button_behavior);
+NK_API int nk_button_pop_behavior(struct nk_context*);
+/* =============================================================================
+ *
+ *                                  CHECKBOX
+ *
+ * ============================================================================= */
+NK_API int nk_check_label(struct nk_context*, const char*, int active);
+NK_API int nk_check_text(struct nk_context*, const char*, int,int active);
+NK_API unsigned nk_check_flags_label(struct nk_context*, const char*, unsigned int flags, unsigned int value);
+NK_API unsigned nk_check_flags_text(struct nk_context*, const char*, int, unsigned int flags, unsigned int value);
+NK_API int nk_checkbox_label(struct nk_context*, const char*, int *active);
+NK_API int nk_checkbox_text(struct nk_context*, const char*, int, int *active);
+NK_API int nk_checkbox_flags_label(struct nk_context*, const char*, unsigned int *flags, unsigned int value);
+NK_API int nk_checkbox_flags_text(struct nk_context*, const char*, int, unsigned int *flags, unsigned int value);
+/* =============================================================================
+ *
+ *                                  RADIO BUTTON
+ *
+ * ============================================================================= */
+NK_API int nk_radio_label(struct nk_context*, const char*, int *active);
+NK_API int nk_radio_text(struct nk_context*, const char*, int, int *active);
+NK_API int nk_option_label(struct nk_context*, const char*, int active);
+NK_API int nk_option_text(struct nk_context*, const char*, int, int active);
+/* =============================================================================
+ *
+ *                                  SELECTABLE
+ *
+ * ============================================================================= */
+NK_API int nk_selectable_label(struct nk_context*, const char*, nk_flags align, int *value);
+NK_API int nk_selectable_text(struct nk_context*, const char*, int, nk_flags align, int *value);
+NK_API int nk_selectable_image_label(struct nk_context*,struct nk_image,  const char*, nk_flags align, int *value);
+NK_API int nk_selectable_image_text(struct nk_context*,struct nk_image, const char*, int, nk_flags align, int *value);
+NK_API int nk_selectable_symbol_label(struct nk_context*,enum nk_symbol_type,  const char*, nk_flags align, int *value);
+NK_API int nk_selectable_symbol_text(struct nk_context*,enum nk_symbol_type, const char*, int, nk_flags align, int *value);
+
+NK_API int nk_select_label(struct nk_context*, const char*, nk_flags align, int value);
+NK_API int nk_select_text(struct nk_context*, const char*, int, nk_flags align, int value);
+NK_API int nk_select_image_label(struct nk_context*, struct nk_image,const char*, nk_flags align, int value);
+NK_API int nk_select_image_text(struct nk_context*, struct nk_image,const char*, int, nk_flags align, int value);
+NK_API int nk_select_symbol_label(struct nk_context*,enum nk_symbol_type,  const char*, nk_flags align, int value);
+NK_API int nk_select_symbol_text(struct nk_context*,enum nk_symbol_type, const char*, int, nk_flags align, int value);
+
+/* =============================================================================
+ *
+ *                                  SLIDER
+ *
+ * ============================================================================= */
+NK_API float nk_slide_float(struct nk_context*, float min, float val, float max, float step);
+NK_API int nk_slide_int(struct nk_context*, int min, int val, int max, int step);
+NK_API int nk_slider_float(struct nk_context*, float min, float *val, float max, float step);
+NK_API int nk_slider_int(struct nk_context*, int min, int *val, int max, int step);
+/* =============================================================================
+ *
+ *                                  PROGRESSBAR
+ *
+ * ============================================================================= */
+NK_API int nk_progress(struct nk_context*, nk_size *cur, nk_size max, int modifyable);
+NK_API nk_size nk_prog(struct nk_context*, nk_size cur, nk_size max, int modifyable);
+
+/* =============================================================================
+ *
+ *                                  COLOR PICKER
+ *
+ * ============================================================================= */
+NK_API struct nk_colorf nk_color_picker(struct nk_context*, struct nk_colorf, enum nk_color_format);
+NK_API int nk_color_pick(struct nk_context*, struct nk_colorf*, enum nk_color_format);
+/* =============================================================================
+ *
+ *                                  PROPERTIES
+ *
+ * =============================================================================
+/// ### Properties
+/// Properties are the main value modification widgets in Nuklear. Changing a value
+/// can be achieved by dragging, adding/removing incremental steps on button click
+/// or by directly typing a number.
+///
+/// #### Usage
+/// Each property requires a unique name for identifaction that is also used for
+/// displaying a label. If you want to use the same name multiple times make sure
+/// add a '#' before your name. The '#' will not be shown but will generate a
+/// unique ID. Each propery also takes in a minimum and maximum value. If you want
+/// to make use of the complete number range of a type just use the provided
+/// type limits from `limits.h`. For example `INT_MIN` and `INT_MAX` for
+/// `nk_property_int` and `nk_propertyi`. In additional each property takes in
+/// a increment value that will be added or subtracted if either the increment
+/// decrement button is clicked. Finally there is a value for increment per pixel
+/// dragged that is added or subtracted from the value.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int value = 0;
+/// struct nk_context ctx;
+/// nk_init_xxx(&ctx, ...);
+/// while (1) {
+///     // Input
+///     Event evt;
+///     nk_input_begin(&ctx);
+///     while (GetEvent(&evt)) {
+///         if (evt.type == MOUSE_MOVE)
+///             nk_input_motion(&ctx, evt.motion.x, evt.motion.y);
+///         else if (evt.type == [...]) {
+///             nk_input_xxx(...);
+///         }
+///     }
+///     nk_input_end(&ctx);
+///     //
+///     // Window
+///     if (nk_begin_xxx(...) {
+///         // Property
+///         nk_layout_row_dynamic(...);
+///         nk_property_int(ctx, "ID", INT_MIN, &value, INT_MAX, 1, 1);
+///     }
+///     nk_end(ctx);
+///     //
+///     // Draw
+///     const struct nk_command *cmd = 0;
+///     nk_foreach(cmd, &ctx) {
+///     switch (cmd->type) {
+///     case NK_COMMAND_LINE:
+///         your_draw_line_function(...)
+///         break;
+///     case NK_COMMAND_RECT
+///         your_draw_rect_function(...)
+///         break;
+///     case ...:
+///         // [...]
+///     }
+///     nk_clear(&ctx);
+/// }
+/// nk_free(&ctx);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// #### Reference
+/// Function            | Description
+/// --------------------|-------------------------------------------
+/// nk_property_int     | Integer property directly modifing a passed in value
+/// nk_property_float   | Float property directly modifing a passed in value
+/// nk_property_double  | Double property directly modifing a passed in value
+/// nk_propertyi        | Integer property returning the modified int value
+/// nk_propertyf        | Float property returning the modified float value
+/// nk_propertyd        | Double property returning the modified double value
+///
+*/
+/*/// #### nk_property_int
+/// Integer property directly modifing a passed in value
+/// !!! WARNING
+///     To generate a unique property ID using the same label make sure to insert
+///     a `#` at the beginning. It will not be shown but guarantees correct behavior.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_property_int(struct nk_context *ctx, const char *name, int min, int *val, int max, int step, float inc_per_pixel);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter           | Description
+/// --------------------|-----------------------------------------------------------
+/// __ctx__             | Must point to an previously initialized `nk_context` struct after calling a layouting function
+/// __name__            | String used both as a label as well as a unique identifier
+/// __min__             | Minimum value not allowed to be underflown
+/// __val__             | Integer pointer to be modified
+/// __max__             | Maximum value not allowed to be overflown
+/// __step__            | Increment added and subtracted on increment and decrement button
+/// __inc_per_pixel__   | Value per pixel added or subtracted on dragging
+*/
+NK_API void nk_property_int(struct nk_context*, const char *name, int min, int *val, int max, int step, float inc_per_pixel);
+/*/// #### nk_property_float
+/// Float property directly modifing a passed in value
+/// !!! WARNING
+///     To generate a unique property ID using the same label make sure to insert
+///     a `#` at the beginning. It will not be shown but guarantees correct behavior.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_property_float(struct nk_context *ctx, const char *name, float min, float *val, float max, float step, float inc_per_pixel);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter           | Description
+/// --------------------|-----------------------------------------------------------
+/// __ctx__             | Must point to an previously initialized `nk_context` struct after calling a layouting function
+/// __name__            | String used both as a label as well as a unique identifier
+/// __min__             | Minimum value not allowed to be underflown
+/// __val__             | Float pointer to be modified
+/// __max__             | Maximum value not allowed to be overflown
+/// __step__            | Increment added and subtracted on increment and decrement button
+/// __inc_per_pixel__   | Value per pixel added or subtracted on dragging
+*/
+NK_API void nk_property_float(struct nk_context*, const char *name, float min, float *val, float max, float step, float inc_per_pixel);
+/*/// #### nk_property_double
+/// Double property directly modifing a passed in value
+/// !!! WARNING
+///     To generate a unique property ID using the same label make sure to insert
+///     a `#` at the beginning. It will not be shown but guarantees correct behavior.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// void nk_property_double(struct nk_context *ctx, const char *name, double min, double *val, double max, double step, double inc_per_pixel);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter           | Description
+/// --------------------|-----------------------------------------------------------
+/// __ctx__             | Must point to an previously initialized `nk_context` struct after calling a layouting function
+/// __name__            | String used both as a label as well as a unique identifier
+/// __min__             | Minimum value not allowed to be underflown
+/// __val__             | Double pointer to be modified
+/// __max__             | Maximum value not allowed to be overflown
+/// __step__            | Increment added and subtracted on increment and decrement button
+/// __inc_per_pixel__   | Value per pixel added or subtracted on dragging
+*/
+NK_API void nk_property_double(struct nk_context*, const char *name, double min, double *val, double max, double step, float inc_per_pixel);
+/*/// #### nk_propertyi
+/// Integer property modifing a passed in value and returning the new value
+/// !!! WARNING
+///     To generate a unique property ID using the same label make sure to insert
+///     a `#` at the beginning. It will not be shown but guarantees correct behavior.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// int nk_propertyi(struct nk_context *ctx, const char *name, int min, int val, int max, int step, float inc_per_pixel);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter           | Description
+/// --------------------|-----------------------------------------------------------
+/// __ctx__             | Must point to an previously initialized `nk_context` struct after calling a layouting function
+/// __name__            | String used both as a label as well as a unique identifier
+/// __min__             | Minimum value not allowed to be underflown
+/// __val__             | Current integer value to be modified and returned
+/// __max__             | Maximum value not allowed to be overflown
+/// __step__            | Increment added and subtracted on increment and decrement button
+/// __inc_per_pixel__   | Value per pixel added or subtracted on dragging
+///
+/// Returns the new modified integer value
+*/
+NK_API int nk_propertyi(struct nk_context*, const char *name, int min, int val, int max, int step, float inc_per_pixel);
+/*/// #### nk_propertyf
+/// Float property modifing a passed in value and returning the new value
+/// !!! WARNING
+///     To generate a unique property ID using the same label make sure to insert
+///     a `#` at the beginning. It will not be shown but guarantees correct behavior.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// float nk_propertyf(struct nk_context *ctx, const char *name, float min, float val, float max, float step, float inc_per_pixel);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter           | Description
+/// --------------------|-----------------------------------------------------------
+/// __ctx__             | Must point to an previously initialized `nk_context` struct after calling a layouting function
+/// __name__            | String used both as a label as well as a unique identifier
+/// __min__             | Minimum value not allowed to be underflown
+/// __val__             | Current float value to be modified and returned
+/// __max__             | Maximum value not allowed to be overflown
+/// __step__            | Increment added and subtracted on increment and decrement button
+/// __inc_per_pixel__   | Value per pixel added or subtracted on dragging
+///
+/// Returns the new modified float value
+*/
+NK_API float nk_propertyf(struct nk_context*, const char *name, float min, float val, float max, float step, float inc_per_pixel);
+/*/// #### nk_propertyd
+/// Float property modifing a passed in value and returning the new value
+/// !!! WARNING
+///     To generate a unique property ID using the same label make sure to insert
+///     a `#` at the beginning. It will not be shown but guarantees correct behavior.
+///
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~c
+/// float nk_propertyd(struct nk_context *ctx, const char *name, double min, double val, double max, double step, double inc_per_pixel);
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+///
+/// Parameter           | Description
+/// --------------------|-----------------------------------------------------------
+/// __ctx__             | Must point to an previously initialized `nk_context` struct after calling a layouting function
+/// __name__            | String used both as a label as well as a unique identifier
+/// __min__             | Minimum value not allowed to be underflown
+/// __val__             | Current double value to be modified and returned
+/// __max__             | Maximum value not allowed to be overflown
+/// __step__            | Increment added and subtracted on increment and decrement button
+/// __inc_per_pixel__   | Value per pixel added or subtracted on dragging
+///
+/// Returns the new modified double value
+*/
+NK_API double nk_propertyd(struct nk_context*, const char *name, double min, double val, double max, double step, float inc_per_pixel);
+/* =============================================================================
+ *
+ *                                  TEXT EDIT
+ *
+ * ============================================================================= */
+enum nk_edit_flags {
+    NK_EDIT_DEFAULT                 = 0,
+    NK_EDIT_READ_ONLY               = NK_FLAG(0),
+    NK_EDIT_AUTO_SELECT             = NK_FLAG(1),
+    NK_EDIT_SIG_ENTER               = NK_FLAG(2),
+    NK_EDIT_ALLOW_TAB               = NK_FLAG(3),
+    NK_EDIT_NO_CURSOR               = NK_FLAG(4),
+    NK_EDIT_SELECTABLE              = NK_FLAG(5),
+    NK_EDIT_CLIPBOARD               = NK_FLAG(6),
+    NK_EDIT_CTRL_ENTER_NEWLINE      = NK_FLAG(7),
+    NK_EDIT_NO_HORIZONTAL_SCROLL    = NK_FLAG(8),
+    NK_EDIT_ALWAYS_INSERT_MODE      = NK_FLAG(9),
+    NK_EDIT_MULTILINE               = NK_FLAG(10),
+    NK_EDIT_GOTO_END_ON_ACTIVATE    = NK_FLAG(11)
+};
+enum nk_edit_types {
+    NK_EDIT_SIMPLE  = NK_EDIT_ALWAYS_INSERT_MODE,
+    NK_EDIT_FIELD   = NK_EDIT_SIMPLE|NK_EDIT_SELECTABLE|NK_EDIT_CLIPBOARD,
+    NK_EDIT_BOX     = NK_EDIT_ALWAYS_INSERT_MODE| NK_EDIT_SELECTABLE| NK_EDIT_MULTILINE|NK_EDIT_ALLOW_TAB|NK_EDIT_CLIPBOARD,
+    NK_EDIT_EDITOR  = NK_EDIT_SELECTABLE|NK_EDIT_MULTILINE|NK_EDIT_ALLOW_TAB| NK_EDIT_CLIPBOARD
+};
+enum nk_edit_events {
+    NK_EDIT_ACTIVE      = NK_FLAG(0), /* edit widget is currently being modified */
+    NK_EDIT_INACTIVE    = NK_FLAG(1), /* edit widget is not active and is not being modified */
+    NK_EDIT_ACTIVATED   = NK_FLAG(2), /* edit widget went from state inactive to state active */
+    NK_EDIT_DEACTIVATED = NK_FLAG(3), /* edit widget went from state active to state inactive */
+    NK_EDIT_COMMITED    = NK_FLAG(4) /* edit widget has received an enter and lost focus */
+};
+NK_API nk_flags nk_edit_string(struct nk_context*, nk_flags, char *buffer, int *len, int max, nk_plugin_filter);
+NK_API nk_flags nk_edit_string_zero_terminated(struct nk_context*, nk_flags, char *buffer, int max, nk_plugin_filter);
+NK_API nk_flags nk_edit_buffer(struct nk_context*, nk_flags, struct nk_text_edit*, nk_plugin_filter);
+NK_API void nk_edit_focus(struct nk_context*, nk_flags flags);
+NK_API void nk_edit_unfocus(struct nk_context*);
+/* =============================================================================
+ *
+ *                                  CHART
+ *
+ * ============================================================================= */
+NK_API int nk_chart_begin(struct nk_context*, enum nk_chart_type, int num, float min, float max);
+NK_API int nk_chart_begin_colored(struct nk_context*, enum nk_chart_type, struct nk_color, struct nk_color active, int num, float min, float max);
+NK_API void nk_chart_add_slot(struct nk_context *ctx, const enum nk_chart_type, int count, float min_value, float max_value);
+NK_API void nk_chart_add_slot_colored(struct nk_context *ctx, const enum nk_chart_type, struct nk_color, struct nk_color active, int count, float min_value, float max_value);
+NK_API nk_flags nk_chart_push(struct nk_context*, float);
+NK_API nk_flags nk_chart_push_slot(struct nk_context*, float, int);
+NK_API void nk_chart_end(struct nk_context*);
+NK_API void nk_plot(struct nk_context*, enum nk_chart_type, const float *values, int count, int offset);
+NK_API void nk_plot_function(struct nk_context*, enum nk_chart_type, void *userdata, float(*value_getter)(void* user, int index), int count, int offset);
+/* =============================================================================
+ *
+ *                                  POPUP
+ *
+ * ============================================================================= */
+NK_API int nk_popup_begin(struct nk_context*, enum nk_popup_type, const char*, nk_flags, struct nk_rect bounds);
+NK_API void nk_popup_close(struct nk_context*);
+NK_API void nk_popup_end(struct nk_context*);
+NK_API void nk_popup_get_scroll(struct nk_context*, nk_uint *offset_x, nk_uint *offset_y);
+NK_API void nk_popup_set_scroll(struct nk_context*, nk_uint offset_x, nk_uint offset_y);
+/* =============================================================================
+ *
+ *                                  COMBOBOX
+ *
+ * ============================================================================= */
+NK_API int nk_combo(struct nk_context*, const char **items, int count, int selected, int item_height, struct nk_vec2 size);
+NK_API int nk_combo_separator(struct nk_context*, const char *items_separated_by_separator, int separator, int selected, int count, int item_height, struct nk_vec2 size);
+NK_API int nk_combo_string(struct nk_context*, const char *items_separated_by_zeros, int selected, int count, int item_height, struct nk_vec2 size);
+NK_API int nk_combo_callback(struct nk_context*, void(*item_getter)(void*, int, const char**), void *userdata, int selected, int count, int item_height, struct nk_vec2 size);
+NK_API void nk_combobox(struct nk_context*, const char **items, int count, int *selected, int item_height, struct nk_vec2 size);
+NK_API void nk_combobox_string(struct nk_context*, const char *items_separated_by_zeros, int *selected, int count, int item_height, struct nk_vec2 size);
+NK_API void nk_combobox_separator(struct nk_context*, const char *items_separated_by_separator, int separator,int *selected, int count, int item_height, struct nk_vec2 size);
+NK_API void nk_combobox_callback(struct nk_context*, void(*item_getter)(void*, int, const char**), void*, int *selected, int count, int item_height, struct nk_vec2 size);
+/* =============================================================================
+ *
+ *                                  ABSTRACT COMBOBOX
+ *
+ * ============================================================================= */
+NK_API int nk_combo_begin_text(struct nk_context*, const char *selected, int, struct nk_vec2 size);
+NK_API int nk_combo_begin_label(struct nk_context*, const char *selected, struct nk_vec2 size);
+NK_API int nk_combo_begin_color(struct nk_context*, struct nk_color color, struct nk_vec2 size);
+NK_API int nk_combo_begin_symbol(struct nk_context*,  enum nk_symbol_type,  struct nk_vec2 size);
+NK_API int nk_combo_begin_symbol_label(struct nk_context*, const char *selected, enum nk_symbol_type, struct nk_vec2 size);
+NK_API int nk_combo_begin_symbol_text(struct nk_context*, const char *selected, int, enum nk_symbol_type, struct nk_vec2 size);
+NK_API int nk_combo_begin_image(struct nk_context*, struct nk_image img,  struct nk_vec2 size);
+NK_API int nk_combo_begin_image_label(struct nk_context*, const char *selected, struct nk_image, struct nk_vec2 size);
+NK_API int nk_combo_begin_image_text(struct nk_context*,  const char *selected, int, struct nk_image, struct nk_vec2 size);
+NK_API int nk_combo_item_label(struct nk_context*, const char*, nk_flags alignment);
+NK_API int nk_combo_item_text(struct nk_context*, const char*,int, nk_flags alignment);
+NK_API int nk_combo_item_image_label(struct nk_context*, struct nk_image, const char*, nk_flags alignment);
+NK_API int nk_combo_item_image_text(struct nk_context*, struct nk_image, const char*, int,nk_flags alignment);
+NK_API int nk_combo_item_symbol_label(struct nk_context*, enum nk_symbol_type, const char*, nk_flags alignment);
+NK_API int nk_combo_item_symbol_text(struct nk_context*, enum nk_symbol_type, const char*, int, nk_flags alignment);
+NK_API void nk_combo_close(struct nk_context*);
+NK_API void nk_combo_end(struct nk_context*);
+/* =============================================================================
+ *
+ *                                  CONTEXTUAL
+ *
+ * ============================================================================= */
+NK_API int nk_contextual_begin(struct nk_context*, nk_flags, struct nk_vec2, struct nk_rect trigger_bounds);
+NK_API int nk_contextual_item_text(struct nk_context*, const char*, int,nk_flags align);
+NK_API int nk_contextual_item_label(struct nk_context*, const char*, nk_flags align);
+NK_API int nk_contextual_item_image_label(struct nk_context*, struct nk_image, const char*, nk_flags alignment);
+NK_API int nk_contextual_item_image_text(struct nk_context*, struct nk_image, const char*, int len, nk_flags alignment);
+NK_API int nk_contextual_item_symbol_label(struct nk_context*, enum nk_symbol_type, const char*, nk_flags alignment);
+NK_API int nk_contextual_item_symbol_text(struct nk_context*, enum nk_symbol_type, const char*, int, nk_flags alignment);
+NK_API void nk_contextual_close(struct nk_context*);
+NK_API void nk_contextual_end(struct nk_context*);
+/* =============================================================================
+ *
+ *                                  TOOLTIP
+ *
+ * ============================================================================= */
+NK_API void nk_tooltip(struct nk_context*, const char*);
+#ifdef NK_INCLUDE_STANDARD_VARARGS
+NK_API void nk_tooltipf(struct nk_context*, NK_PRINTF_FORMAT_STRING const char*, ...) NK_PRINTF_VARARG_FUNC(2);
+NK_API void nk_tooltipfv(struct nk_context*, NK_PRINTF_FORMAT_STRING const char*, va_list) NK_PRINTF_VALIST_FUNC(2);
+#endif
+NK_API int nk_tooltip_begin(struct nk_context*, float width);
+NK_API void nk_tooltip_end(struct nk_context*);
+/* =============================================================================
+ *
+ *                                  MENU
+ *
+ * ============================================================================= */
+NK_API void nk_menubar_begin(struct nk_context*);
+NK_API void nk_menubar_end(struct nk_context*);
+NK_API int nk_menu_begin_text(struct nk_context*, const char* title, int title_len, nk_flags align, struct nk_vec2 size);
+NK_API int nk_menu_begin_label(struct nk_context*, const char*, nk_flags align, struct nk_vec2 size);
+NK_API int nk_menu_begin_image(struct nk_context*, const char*, struct nk_image, struct nk_vec2 size);
+NK_API int nk_menu_begin_image_text(struct nk_context*, const char*, int,nk_flags align,struct nk_image, struct nk_vec2 size);
+NK_API int nk_menu_begin_image_label(struct nk_context*, const char*, nk_flags align,struct nk_image, struct nk_vec2 size);
+NK_API int nk_menu_begin_symbol(struct nk_context*, const char*, enum nk_symbol_type, struct nk_vec2 size);
+NK_API int nk_menu_begin_symbol_text(struct nk_context*, const char*, int,nk_flags align,enum nk_symbol_type, struct nk_vec2 size);
+NK_API int nk_menu_begin_symbol_label(struct nk_context*, const char*, nk_flags align,enum nk_symbol_type, struct nk_vec2 size);
+NK_API int nk_menu_item_text(struct nk_context*, const char*, int,nk_flags align);
+NK_API int nk_menu_item_label(struct nk_context*, const char*, nk_flags alignment);
+NK_API int nk_menu_item_image_label(struct nk_context*, struct nk_image, const char*, nk_flags alignment);
+NK_API int nk_menu_item_image_text(struct nk_context*, struct nk_image, const char*, int len, nk_flags alignment);
+NK_API int nk_menu_item_symbol_text(struct nk_context*, enum nk_symbol_type, const char*, int, nk_flags alignment);
+NK_API int nk_menu_item_symbol_label(struct nk_context*, enum nk_symbol_type, const char*, nk_flags alignment);
+NK_API void nk_menu_close(struct nk_context*);
+NK_API void nk_menu_end(struct nk_context*);
+/* =============================================================================
+ *
+ *                                  STYLE
+ *
+ * ============================================================================= */
+enum nk_style_colors {
+    NK_COLOR_TEXT,
+    NK_COLOR_WINDOW,
+    NK_COLOR_HEADER,
+    NK_COLOR_BORDER,
+    NK_COLOR_BUTTON,
+    NK_COLOR_BUTTON_HOVER,
+    NK_COLOR_BUTTON_ACTIVE,
+    NK_COLOR_TOGGLE,
+    NK_COLOR_TOGGLE_HOVER,
+    NK_COLOR_TOGGLE_CURSOR,
+    NK_COLOR_SELECT,
+    NK_COLOR_SELECT_ACTIVE,
+    NK_COLOR_SLIDER,
+    NK_COLOR_SLIDER_CURSOR,
+    NK_COLOR_SLIDER_CURSOR_HOVER,
+    NK_COLOR_SLIDER_CURSOR_ACTIVE,
+    NK_COLOR_PROPERTY,
+    NK_COLOR_EDIT,
+    NK_COLOR_EDIT_CURSOR,
+    NK_COLOR_COMBO,
+    NK_COLOR_CHART,
+    NK_COLOR_CHART_COLOR,
+    NK_COLOR_CHART_COLOR_HIGHLIGHT,
+    NK_COLOR_SCROLLBAR,
+    NK_COLOR_SCROLLBAR_CURSOR,
+    NK_COLOR_SCROLLBAR_CURSOR_HOVER,
+    NK_COLOR_SCROLLBAR_CURSOR_ACTIVE,
+    NK_COLOR_TAB_HEADER,
+    NK_COLOR_COUNT
+};
+enum nk_style_cursor {
+    NK_CURSOR_ARROW,
+    NK_CURSOR_TEXT,
+    NK_CURSOR_MOVE,
+    NK_CURSOR_RESIZE_VERTICAL,
+    NK_CURSOR_RESIZE_HORIZONTAL,
+    NK_CURSOR_RESIZE_TOP_LEFT_DOWN_RIGHT,
+    NK_CURSOR_RESIZE_TOP_RIGHT_DOWN_LEFT,
+    NK_CURSOR_COUNT
+};
+NK_API void nk_style_default(struct nk_context*);
+NK_API void nk_style_from_table(struct nk_context*, const struct nk_color*);
+NK_API void nk_style_load_cursor(struct nk_context*, enum nk_style_cursor, const struct nk_cursor*);
+NK_API void nk_style_load_all_cursors(struct nk_context*, struct nk_cursor*);
+NK_API const char* nk_style_get_color_by_name(enum nk_style_colors);
+NK_API void nk_style_set_font(struct nk_context*, const struct nk_user_font*);
+NK_API int nk_style_set_cursor(struct nk_context*, enum nk_style_cursor);
+NK_API void nk_style_show_cursor(struct nk_context*);
+NK_API void nk_style_hide_cursor(struct nk_context*);
+
+NK_API int nk_style_push_font(struct nk_context*, const struct nk_user_font*);
+NK_API int nk_style_push_float(struct nk_context*, float*, float);
+NK_API int nk_style_push_vec2(struct nk_context*, struct nk_vec2*, struct nk_vec2);
+NK_API int nk_style_push_style_item(struct nk_context*, struct nk_style_item*, struct nk_style_item);
+NK_API int nk_style_push_flags(struct nk_context*, nk_flags*, nk_flags);
+NK_API int nk_style_push_color(struct nk_context*, struct nk_color*, struct nk_color);
+
+NK_API int nk_style_pop_font(struct nk_context*);
+NK_API int nk_style_pop_float(struct nk_context*);
+NK_API int nk_style_pop_vec2(struct nk_context*);
+NK_API int nk_style_pop_style_item(struct nk_context*);
+NK_API int nk_style_pop_flags(struct nk_context*);
+NK_API int nk_style_pop_color(struct nk_context*);
+/* =============================================================================
+ *
+ *                                  COLOR
+ *
+ * ============================================================================= */
+NK_API struct nk_color nk_rgb(int r, int g, int b);
+NK_API struct nk_color nk_rgb_iv(const int *rgb);
+NK_API struct nk_color nk_rgb_bv(const nk_byte* rgb);
+NK_API struct nk_color nk_rgb_f(float r, float g, float b);
+NK_API struct nk_color nk_rgb_fv(const float *rgb);
+NK_API struct nk_color nk_rgb_cf(struct nk_colorf c);
+NK_API struct nk_color nk_rgb_hex(const char *rgb);
+
+NK_API struct nk_color nk_rgba(int r, int g, int b, int a);
+NK_API struct nk_color nk_rgba_u32(nk_uint);
+NK_API struct nk_color nk_rgba_iv(const int *rgba);
+NK_API struct nk_color nk_rgba_bv(const nk_byte *rgba);
+NK_API struct nk_color nk_rgba_f(float r, float g, float b, float a);
+NK_API struct nk_color nk_rgba_fv(const float *rgba);
+NK_API struct nk_color nk_rgba_cf(struct nk_colorf c);
+NK_API struct nk_color nk_rgba_hex(const char *rgb);
+
+NK_API struct nk_colorf nk_hsva_colorf(float h, float s, float v, float a);
+NK_API struct nk_colorf nk_hsva_colorfv(float *c);
+NK_API void nk_colorf_hsva_f(float *out_h, float *out_s, float *out_v, float *out_a, struct nk_colorf in);
+NK_API void nk_colorf_hsva_fv(float *hsva, struct nk_colorf in);
+
+NK_API struct nk_color nk_hsv(int h, int s, int v);
+NK_API struct nk_color nk_hsv_iv(const int *hsv);
+NK_API struct nk_color nk_hsv_bv(const nk_byte *hsv);
+NK_API struct nk_color nk_hsv_f(float h, float s, float v);
+NK_API struct nk_color nk_hsv_fv(const float *hsv);
+
+NK_API struct nk_color nk_hsva(int h, int s, int v, int a);
+NK_API struct nk_color nk_hsva_iv(const int *hsva);
+NK_API struct nk_color nk_hsva_bv(const nk_byte *hsva);
+NK_API struct nk_color nk_hsva_f(float h, float s, float v, float a);
+NK_API struct nk_color nk_hsva_fv(const float *hsva);
+
+/* color (conversion nuklear --> user) */
+NK_API void nk_color_f(float *r, float *g, float *b, float *a, struct nk_color);
+NK_API void nk_color_fv(float *rgba_out, struct nk_color);
+NK_API struct nk_colorf nk_color_cf(struct nk_color);
+NK_API void nk_color_d(double *r, double *g, double *b, double *a, struct nk_color);
+NK_API void nk_color_dv(double *rgba_out, struct nk_color);
+
+NK_API nk_uint nk_color_u32(struct nk_color);
+NK_API void nk_color_hex_rgba(char *output, struct nk_color);
+NK_API void nk_color_hex_rgb(char *output, struct nk_color);
+
+NK_API void nk_color_hsv_i(int *out_h, int *out_s, int *out_v, struct nk_color);
+NK_API void nk_color_hsv_b(nk_byte *out_h, nk_byte *out_s, nk_byte *out_v, struct nk_color);
+NK_API void nk_color_hsv_iv(int *hsv_out, struct nk_color);
+NK_API void nk_color_hsv_bv(nk_byte *hsv_out, struct nk_color);
+NK_API void nk_color_hsv_f(float *out_h, float *out_s, float *out_v, struct nk_color);
+NK_API void nk_color_hsv_fv(float *hsv_out, struct nk_color);
+
+NK_API void nk_color_hsva_i(int *h, int *s, int *v, int *a, struct nk_color);
+NK_API void nk_color_hsva_b(nk_byte *h, nk_byte *s, nk_byte *v, nk_byte *a, struct nk_color);
+NK_API void nk_color_hsva_iv(int *hsva_out, struct nk_color);
+NK_API void nk_color_hsva_bv(nk_byte *hsva_out, struct nk_color);
+NK_API void nk_color_hsva_f(float *out_h, float *out_s, float *out_v, float *out_a, struct nk_color);
+NK_API void nk_color_hsva_fv(float *hsva_out, struct nk_color);
+/* =============================================================================
+ *
+ *                                  IMAGE
+ *
+ * ============================================================================= */
+NK_API nk_handle nk_handle_ptr(void*);
+NK_API nk_handle nk_handle_id(int);
+NK_API struct nk_image nk_image_handle(nk_handle);
+NK_API struct nk_image nk_image_ptr(void*);
+NK_API struct nk_image nk_image_id(int);
+NK_API int nk_image_is_subimage(const struct nk_image* img);
+NK_API struct nk_image nk_subimage_ptr(void*, unsigned short w, unsigned short h, struct nk_rect sub_region);
+NK_API struct nk_image nk_subimage_id(int, unsigned short w, unsigned short h, struct nk_rect sub_region);
+NK_API struct nk_image nk_subimage_handle(nk_handle, unsigned short w, unsigned short h, struct nk_rect sub_region);
+/* =============================================================================
+ *
+ *                                  MATH
+ *
+ * ============================================================================= */
+NK_API nk_hash nk_murmur_hash(const void *key, int len, nk_hash seed);
+NK_API void nk_triangle_from_direction(struct nk_vec2 *result, struct nk_rect r, float pad_x, float pad_y, enum nk_heading);
+
+NK_API struct nk_vec2 nk_vec2(float x, float y);
+NK_API struct nk_vec2 nk_vec2i(int x, int y);
+NK_API struct nk_vec2 nk_vec2v(const float *xy);
+NK_API struct nk_vec2 nk_vec2iv(const int *xy);
+
+NK_API struct nk_rect nk_get_null_rect(void);
+NK_API struct nk_rect nk_rect(float x, float y, float w, float h);
+NK_API struct nk_rect nk_recti(int x, int y, int w, int h);
+NK_API struct nk_rect nk_recta(struct nk_vec2 pos, struct nk_vec2 size);
+NK_API struct nk_rect nk_rectv(const float *xywh);
+NK_API struct nk_rect nk_rectiv(const int *xywh);
+NK_API struct nk_vec2 nk_rect_pos(struct nk_rect);
+NK_API struct nk_vec2 nk_rect_size(struct nk_rect);
+/* =============================================================================
+ *
+ *                                  STRING
+ *
+ * ============================================================================= */
+NK_API int nk_strlen(const char *str);
+NK_API int nk_stricmp(const char *s1, const char *s2);
+NK_API int nk_stricmpn(const char *s1, const char *s2, int n);
+NK_API int nk_strtoi(const char *str, const char **endptr);
+NK_API float nk_strtof(const char *str, const char **endptr);
+NK_API double nk_strtod(const char *str, const char **endptr);
+NK_API int nk_strfilter(const char *text, const char *regexp);
+NK_API int nk_strmatch_fuzzy_string(char const *str, char const *pattern, int *out_score);
+NK_API int nk_strmatch_fuzzy_text(const char *txt, int txt_len, const char *pattern, int *out_score);
+/* =============================================================================
+ *
+ *                                  UTF-8
+ *
+ * ============================================================================= */
+NK_API int nk_utf_decode(const char*, nk_rune*, int);
+NK_API int nk_utf_encode(nk_rune, char*, int);
+NK_API int nk_utf_len(const char*, int byte_len);
+NK_API const char* nk_utf_at(const char *buffer, int length, int index, nk_rune *unicode, int *len);
+/* ===============================================================
+ *
+ *                          FONT
+ *
+ * ===============================================================*/
+/*  Font handling in this library was designed to be quite customizable and lets
+    you decide what you want to use and what you want to provide. There are three
+    different ways to use the font atlas. The first two will use your font
+    handling scheme and only requires essential data to run nuklear. The next
+    slightly more advanced features is font handling with vertex buffer output.
+    Finally the most complex API wise is using nuklear's font baking API.
+
+    1.) Using your own implementation without vertex buffer output
+    --------------------------------------------------------------
+    So first up the easiest way to do font handling is by just providing a
+    `nk_user_font` struct which only requires the height in pixel of the used
+    font and a callback to calculate the width of a string. This way of handling
+    fonts is best fitted for using the normal draw shape command API where you
+    do all the text drawing yourself and the library does not require any kind
+    of deeper knowledge about which font handling mechanism you use.
+    IMPORTANT: the `nk_user_font` pointer provided to nuklear has to persist
+    over the complete life time! I know this sucks but it is currently the only
+    way to switch between fonts.
+
+        float your_text_width_calculation(nk_handle handle, float height, const char *text, int len)
+        {
+            your_font_type *type = handle.ptr;
+            float text_width = ...;
+            return text_width;
+        }
+
+        struct nk_user_font font;
+        font.userdata.ptr = &your_font_class_or_struct;
+        font.height = your_font_height;
+        font.width = your_text_width_calculation;
+
+        struct nk_context ctx;
+        nk_init_default(&ctx, &font);
+
+    2.) Using your own implementation with vertex buffer output
+    --------------------------------------------------------------
+    While the first approach works fine if you don't want to use the optional
+    vertex buffer output it is not enough if you do. To get font handling working
+    for these cases you have to provide two additional parameters inside the
+    `nk_user_font`. First a texture atlas handle used to draw text as subimages
+    of a bigger font atlas texture and a callback to query a character's glyph
+    information (offset, size, ...). So it is still possible to provide your own
+    font and use the vertex buffer output.
+
+        float your_text_width_calculation(nk_handle handle, float height, const char *text, int len)
+        {
+            your_font_type *type = handle.ptr;
+            float text_width = ...;
+            return text_width;
+        }
+        void query_your_font_glyph(nk_handle handle, float font_height, struct nk_user_font_glyph *glyph, nk_rune codepoint, nk_rune next_codepoint)
+        {
+            your_font_type *type = handle.ptr;
+            glyph.width = ...;
+            glyph.height = ...;
+            glyph.xadvance = ...;
+            glyph.uv[0].x = ...;
+            glyph.uv[0].y = ...;
+            glyph.uv[1].x = ...;
+            glyph.uv[1].y = ...;
+            glyph.offset.x = ...;
+            glyph.offset.y = ...;
+        }
+
+        struct nk_user_font font;
+        font.userdata.ptr = &your_font_class_or_struct;
+        font.height = your_font_height;
+        font.width = your_text_width_calculation;
+        font.query = query_your_font_glyph;
+        font.texture.id = your_font_texture;
+
+        struct nk_context ctx;
+        nk_init_default(&ctx, &font);
+
+    3.) Nuklear font baker
+    ------------------------------------
+    The final approach if you do not have a font handling functionality or don't
+    want to use it in this library is by using the optional font baker.
+    The font baker APIs can be used to create a font plus font atlas texture
+    and can be used with or without the vertex buffer output.
+
+    It still uses the `nk_user_font` struct and the two different approaches
+    previously stated still work. The font baker is not located inside
+    `nk_context` like all other systems since it can be understood as more of
+    an extension to nuklear and does not really depend on any `nk_context` state.
+
+    Font baker need to be initialized first by one of the nk_font_atlas_init_xxx
+    functions. If you don't care about memory just call the default version
+    `nk_font_atlas_init_default` which will allocate all memory from the standard library.
+    If you want to control memory allocation but you don't care if the allocated
+    memory is temporary and therefore can be freed directly after the baking process
+    is over or permanent you can call `nk_font_atlas_init`.
+
+    After successfully initializing the font baker you can add Truetype(.ttf) fonts from
+    different sources like memory or from file by calling one of the `nk_font_atlas_add_xxx`.
+    functions. Adding font will permanently store each font, font config and ttf memory block(!)
+    inside the font atlas and allows to reuse the font atlas. If you don't want to reuse
+    the font baker by for example adding additional fonts you can call
+    `nk_font_atlas_cleanup` after the baking process is over (after calling nk_font_atlas_end).
+
+    As soon as you added all fonts you wanted you can now start the baking process
+    for every selected glyph to image by calling `nk_font_atlas_bake`.
+    The baking process returns image memory, width and height which can be used to
+    either create your own image object or upload it to any graphics library.
+    No matter which case you finally have to call `nk_font_atlas_end` which
+    will free all temporary memory including the font atlas image so make sure
+    you created our texture beforehand. `nk_font_atlas_end` requires a handle
+    to your font texture or object and optionally fills a `struct nk_draw_null_texture`
+    which can be used for the optional vertex output. If you don't want it just
+    set the argument to `NULL`.
+
+    At this point you are done and if you don't want to reuse the font atlas you
+    can call `nk_font_atlas_cleanup` to free all truetype blobs and configuration
+    memory. Finally if you don't use the font atlas and any of it's fonts anymore
+    you need to call `nk_font_atlas_clear` to free all memory still being used.
+
+        struct nk_font_atlas atlas;
+        nk_font_atlas_init_default(&atlas);
+        nk_font_atlas_begin(&atlas);
+        nk_font *font = nk_font_atlas_add_from_file(&atlas, "Path/To/Your/TTF_Font.ttf", 13, 0);
+        nk_font *font2 = nk_font_atlas_add_from_file(&atlas, "Path/To/Your/TTF_Font2.ttf", 16, 0);
+        const void* img = nk_font_atlas_bake(&atlas, &img_width, &img_height, NK_FONT_ATLAS_RGBA32);
+        nk_font_atlas_end(&atlas, nk_handle_id(texture), 0);
+
+        struct nk_context ctx;
+        nk_init_default(&ctx, &font->handle);
+        while (1) {
+
+        }
+        nk_font_atlas_clear(&atlas);
+
+    The font baker API is probably the most complex API inside this library and
+    I would suggest reading some of my examples `example/` to get a grip on how
+    to use the font atlas. There are a number of details I left out. For example
+    how to merge fonts, configure a font with `nk_font_config` to use other languages,
+    use another texture coordinate format and a lot more:
+
+        struct nk_font_config cfg = nk_font_config(font_pixel_height);
+        cfg.merge_mode = nk_false or nk_true;
+        cfg.range = nk_font_korean_glyph_ranges();
+        cfg.coord_type = NK_COORD_PIXEL;
+        nk_font *font = nk_font_atlas_add_from_file(&atlas, "Path/To/Your/TTF_Font.ttf", 13, &cfg);
+
+*/
+struct nk_user_font_glyph;
+typedef float(*nk_text_width_f)(nk_handle, float h, const char*, int len);
+typedef void(*nk_query_font_glyph_f)(nk_handle handle, float font_height,
+                                    struct nk_user_font_glyph *glyph,
+                                    nk_rune codepoint, nk_rune next_codepoint);
+
+#if defined(NK_INCLUDE_VERTEX_BUFFER_OUTPUT) || defined(NK_INCLUDE_SOFTWARE_FONT)
+struct nk_user_font_glyph {
+    struct nk_vec2 uv[2];
+    /* texture coordinates */
+    struct nk_vec2 offset;
+    /* offset between top left and glyph */
+    float width, height;
+    /* size of the glyph  */
+    float xadvance;
+    /* offset to the next glyph */
+};
+#endif
+
+struct nk_user_font {
+    nk_handle userdata;
+    /* user provided font handle */
+    float height;
+    /* max height of the font */
+    nk_text_width_f width;
+    /* font string width in pixel callback */
+#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
+    nk_query_font_glyph_f query;
+    /* font glyph callback to query drawing info */
+    nk_handle texture;
+    /* texture handle to the used font atlas or texture */
+#endif
+};
+
+#ifdef NK_INCLUDE_FONT_BAKING
+enum nk_font_coord_type {
+    NK_COORD_UV, /* texture coordinates inside font glyphs are clamped between 0-1 */
+    NK_COORD_PIXEL /* texture coordinates inside font glyphs are in absolute pixel */
+};
+
+struct nk_font;
+struct nk_baked_font {
+    float height;
+    /* height of the font  */
+    float ascent, descent;
+    /* font glyphs ascent and descent  */
+    nk_rune glyph_offset;
+    /* glyph array offset inside the font glyph baking output array  */
+    nk_rune glyph_count;
+    /* number of glyphs of this font inside the glyph baking array output */
+    const nk_rune *ranges;
+    /* font codepoint ranges as pairs of (from/to) and 0 as last element */
+};
+
+struct nk_font_config {
+    struct nk_font_config *next;
+    /* NOTE: only used internally */
+    void *ttf_blob;
+    /* pointer to loaded TTF file memory block.
+     * NOTE: not needed for nk_font_atlas_add_from_memory and nk_font_atlas_add_from_file. */
+    nk_size ttf_size;
+    /* size of the loaded TTF file memory block
+     * NOTE: not needed for nk_font_atlas_add_from_memory and nk_font_atlas_add_from_file. */
+
+    unsigned char ttf_data_owned_by_atlas;
+    /* used inside font atlas: default to: 0*/
+    unsigned char merge_mode;
+    /* merges this font into the last font */
+    unsigned char pixel_snap;
+    /* align every character to pixel boundary (if true set oversample (1,1)) */
+    unsigned char oversample_v, oversample_h;
+    /* rasterize at hight quality for sub-pixel position */
+    unsigned char padding[3];
+
+    float size;
+    /* baked pixel height of the font */
+    enum nk_font_coord_type coord_type;
+    /* texture coordinate format with either pixel or UV coordinates */
+    struct nk_vec2 spacing;
+    /* extra pixel spacing between glyphs  */
+    const nk_rune *range;
+    /* list of unicode ranges (2 values per range, zero terminated) */
+    struct nk_baked_font *font;
+    /* font to setup in the baking process: NOTE: not needed for font atlas */
+    nk_rune fallback_glyph;
+    /* fallback glyph to use if a given rune is not found */
+    struct nk_font_config *n;
+    struct nk_font_config *p;
+};
+
+struct nk_font_glyph {
+    nk_rune codepoint;
+    float xadvance;
+    float x0, y0, x1, y1, w, h;
+    float u0, v0, u1, v1;
+};
+
+struct nk_font {
+    struct nk_font *next;
+    struct nk_user_font handle;
+    struct nk_baked_font info;
+    float scale;
+    struct nk_font_glyph *glyphs;
+    const struct nk_font_glyph *fallback;
+    nk_rune fallback_codepoint;
+    nk_handle texture;
+    struct nk_font_config *config;
+};
+
+enum nk_font_atlas_format {
+    NK_FONT_ATLAS_ALPHA8,
+    NK_FONT_ATLAS_RGBA32
+};
+
+struct nk_font_atlas {
+    void *pixel;
+    int tex_width;
+    int tex_height;
+
+    struct nk_allocator permanent;
+    struct nk_allocator temporary;
+
+    struct nk_recti custom;
+    struct nk_cursor cursors[NK_CURSOR_COUNT];
+
+    int glyph_count;
+    struct nk_font_glyph *glyphs;
+    struct nk_font *default_font;
+    struct nk_font *fonts;
+    struct nk_font_config *config;
+    int font_num;
+};
+
+/* some language glyph codepoint ranges */
+NK_API const nk_rune *nk_font_default_glyph_ranges(void);
+NK_API const nk_rune *nk_font_chinese_glyph_ranges(void);
+NK_API const nk_rune *nk_font_cyrillic_glyph_ranges(void);
+NK_API const nk_rune *nk_font_korean_glyph_ranges(void);
+
+#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
+NK_API void nk_font_atlas_init_default(struct nk_font_atlas*);
+#endif
+NK_API void nk_font_atlas_init(struct nk_font_atlas*, struct nk_allocator*);
+NK_API void nk_font_atlas_init_custom(struct nk_font_atlas*, struct nk_allocator *persistent, struct nk_allocator *transient);
+NK_API void nk_font_atlas_begin(struct nk_font_atlas*);
+NK_API struct nk_font_config nk_font_config(float pixel_height);
+NK_API struct nk_font *nk_font_atlas_add(struct nk_font_atlas*, const struct nk_font_config*);
+#ifdef NK_INCLUDE_DEFAULT_FONT
+NK_API struct nk_font* nk_font_atlas_add_default(struct nk_font_atlas*, float height, const struct nk_font_config*);
+#endif
+NK_API struct nk_font* nk_font_atlas_add_from_memory(struct nk_font_atlas *atlas, void *memory, nk_size size, float height, const struct nk_font_config *config);
+#ifdef NK_INCLUDE_STANDARD_IO
+NK_API struct nk_font* nk_font_atlas_add_from_file(struct nk_font_atlas *atlas, const char *file_path, float height, const struct nk_font_config*);
+#endif
+NK_API struct nk_font *nk_font_atlas_add_compressed(struct nk_font_atlas*, void *memory, nk_size size, float height, const struct nk_font_config*);
+NK_API struct nk_font* nk_font_atlas_add_compressed_base85(struct nk_font_atlas*, const char *data, float height, const struct nk_font_config *config);
+NK_API const void* nk_font_atlas_bake(struct nk_font_atlas*, int *width, int *height, enum nk_font_atlas_format);
+NK_API void nk_font_atlas_end(struct nk_font_atlas*, nk_handle tex, struct nk_draw_null_texture*);
+NK_API const struct nk_font_glyph* nk_font_find_glyph(struct nk_font*, nk_rune unicode);
+NK_API void nk_font_atlas_cleanup(struct nk_font_atlas *atlas);
+NK_API void nk_font_atlas_clear(struct nk_font_atlas*);
+
+#endif
+
+/* ==============================================================
+ *
+ *                          MEMORY BUFFER
+ *
+ * ===============================================================*/
+/*  A basic (double)-buffer with linear allocation and resetting as only
+    freeing policy. The buffer's main purpose is to control all memory management
+    inside the GUI toolkit and still leave memory control as much as possible in
+    the hand of the user while also making sure the library is easy to use if
+    not as much control is needed.
+    In general all memory inside this library can be provided from the user in
+    three different ways.
+
+    The first way and the one providing most control is by just passing a fixed
+    size memory block. In this case all control lies in the hand of the user
+    since he can exactly control where the memory comes from and how much memory
+    the library should consume. Of course using the fixed size API removes the
+    ability to automatically resize a buffer if not enough memory is provided so
+    you have to take over the resizing. While being a fixed sized buffer sounds
+    quite limiting, it is very effective in this library since the actual memory
+    consumption is quite stable and has a fixed upper bound for a lot of cases.
+
+    If you don't want to think about how much memory the library should allocate
+    at all time or have a very dynamic UI with unpredictable memory consumption
+    habits but still want control over memory allocation you can use the dynamic
+    allocator based API. The allocator consists of two callbacks for allocating
+    and freeing memory and optional userdata so you can plugin your own allocator.
+
+    The final and easiest way can be used by defining
+    NK_INCLUDE_DEFAULT_ALLOCATOR which uses the standard library memory
+    allocation functions malloc and free and takes over complete control over
+    memory in this library.
+*/
+struct nk_memory_status {
+    void *memory;
+    unsigned int type;
+    nk_size size;
+    nk_size allocated;
+    nk_size needed;
+    nk_size calls;
+};
+
+enum nk_allocation_type {
+    NK_BUFFER_FIXED,
+    NK_BUFFER_DYNAMIC
+};
+
+enum nk_buffer_allocation_type {
+    NK_BUFFER_FRONT,
+    NK_BUFFER_BACK,
+    NK_BUFFER_MAX
+};
+
+struct nk_buffer_marker {
+    int active;
+    nk_size offset;
+};
+
+struct nk_memory {void *ptr;nk_size size;};
+struct nk_buffer {
+    struct nk_buffer_marker marker[NK_BUFFER_MAX];
+    /* buffer marker to free a buffer to a certain offset */
+    struct nk_allocator pool;
+    /* allocator callback for dynamic buffers */
+    enum nk_allocation_type type;
+    /* memory management type */
+    struct nk_memory memory;
+    /* memory and size of the current memory block */
+    float grow_factor;
+    /* growing factor for dynamic memory management */
+    nk_size allocated;
+    /* total amount of memory allocated */
+    nk_size needed;
+    /* totally consumed memory given that enough memory is present */
+    nk_size calls;
+    /* number of allocation calls */
+    nk_size size;
+    /* current size of the buffer */
+};
+
+#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
+NK_API void nk_buffer_init_default(struct nk_buffer*);
+#endif
+NK_API void nk_buffer_init(struct nk_buffer*, const struct nk_allocator*, nk_size size);
+NK_API void nk_buffer_init_fixed(struct nk_buffer*, void *memory, nk_size size);
+NK_API void nk_buffer_info(struct nk_memory_status*, struct nk_buffer*);
+NK_API void nk_buffer_push(struct nk_buffer*, enum nk_buffer_allocation_type type, const void *memory, nk_size size, nk_size align);
+NK_API void nk_buffer_mark(struct nk_buffer*, enum nk_buffer_allocation_type type);
+NK_API void nk_buffer_reset(struct nk_buffer*, enum nk_buffer_allocation_type type);
+NK_API void nk_buffer_clear(struct nk_buffer*);
+NK_API void nk_buffer_free(struct nk_buffer*);
+NK_API void *nk_buffer_memory(struct nk_buffer*);
+NK_API const void *nk_buffer_memory_const(const struct nk_buffer*);
+NK_API nk_size nk_buffer_total(struct nk_buffer*);
+
+/* ==============================================================
+ *
+ *                          STRING
+ *
+ * ===============================================================*/
+/*  Basic string buffer which is only used in context with the text editor
+ *  to manage and manipulate dynamic or fixed size string content. This is _NOT_
+ *  the default string handling method. The only instance you should have any contact
+ *  with this API is if you interact with an `nk_text_edit` object inside one of the
+ *  copy and paste functions and even there only for more advanced cases. */
+struct nk_str {
+    struct nk_buffer buffer;
+    int len; /* in codepoints/runes/glyphs */
+};
+
+#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
+NK_API void nk_str_init_default(struct nk_str*);
+#endif
+NK_API void nk_str_init(struct nk_str*, const struct nk_allocator*, nk_size size);
+NK_API void nk_str_init_fixed(struct nk_str*, void *memory, nk_size size);
+NK_API void nk_str_clear(struct nk_str*);
+NK_API void nk_str_free(struct nk_str*);
+
+NK_API int nk_str_append_text_char(struct nk_str*, const char*, int);
+NK_API int nk_str_append_str_char(struct nk_str*, const char*);
+NK_API int nk_str_append_text_utf8(struct nk_str*, const char*, int);
+NK_API int nk_str_append_str_utf8(struct nk_str*, const char*);
+NK_API int nk_str_append_text_runes(struct nk_str*, const nk_rune*, int);
+NK_API int nk_str_append_str_runes(struct nk_str*, const nk_rune*);
+
+NK_API int nk_str_insert_at_char(struct nk_str*, int pos, const char*, int);
+NK_API int nk_str_insert_at_rune(struct nk_str*, int pos, const char*, int);
+
+NK_API int nk_str_insert_text_char(struct nk_str*, int pos, const char*, int);
+NK_API int nk_str_insert_str_char(struct nk_str*, int pos, const char*);
+NK_API int nk_str_insert_text_utf8(struct nk_str*, int pos, const char*, int);
+NK_API int nk_str_insert_str_utf8(struct nk_str*, int pos, const char*);
+NK_API int nk_str_insert_text_runes(struct nk_str*, int pos, const nk_rune*, int);
+NK_API int nk_str_insert_str_runes(struct nk_str*, int pos, const nk_rune*);
+
+NK_API void nk_str_remove_chars(struct nk_str*, int len);
+NK_API void nk_str_remove_runes(struct nk_str *str, int len);
+NK_API void nk_str_delete_chars(struct nk_str*, int pos, int len);
+NK_API void nk_str_delete_runes(struct nk_str*, int pos, int len);
+
+NK_API char *nk_str_at_char(struct nk_str*, int pos);
+NK_API char *nk_str_at_rune(struct nk_str*, int pos, nk_rune *unicode, int *len);
+NK_API nk_rune nk_str_rune_at(const struct nk_str*, int pos);
+NK_API const char *nk_str_at_char_const(const struct nk_str*, int pos);
+NK_API const char *nk_str_at_const(const struct nk_str*, int pos, nk_rune *unicode, int *len);
+
+NK_API char *nk_str_get(struct nk_str*);
+NK_API const char *nk_str_get_const(const struct nk_str*);
+NK_API int nk_str_len(struct nk_str*);
+NK_API int nk_str_len_char(struct nk_str*);
+
+/*===============================================================
+ *
+ *                      TEXT EDITOR
+ *
+ * ===============================================================*/
+/* Editing text in this library is handled by either `nk_edit_string` or
+ * `nk_edit_buffer`. But like almost everything in this library there are multiple
+ * ways of doing it and a balance between control and ease of use with memory
+ * as well as functionality controlled by flags.
+ *
+ * This library generally allows three different levels of memory control:
+ * First of is the most basic way of just providing a simple char array with
+ * string length. This method is probably the easiest way of handling simple
+ * user text input. Main upside is complete control over memory while the biggest
+ * downside in comparison with the other two approaches is missing undo/redo.
+ *
+ * For UIs that require undo/redo the second way was created. It is based on
+ * a fixed size nk_text_edit struct, which has an internal undo/redo stack.
+ * This is mainly useful if you want something more like a text editor but don't want
+ * to have a dynamically growing buffer.
+ *
+ * The final way is using a dynamically growing nk_text_edit struct, which
+ * has both a default version if you don't care where memory comes from and an
+ * allocator version if you do. While the text editor is quite powerful for its
+ * complexity I would not recommend editing gigabytes of data with it.
+ * It is rather designed for uses cases which make sense for a GUI library not for
+ * an full blown text editor.
+ */
+#ifndef NK_TEXTEDIT_UNDOSTATECOUNT
+#define NK_TEXTEDIT_UNDOSTATECOUNT     99
+#endif
+
+#ifndef NK_TEXTEDIT_UNDOCHARCOUNT
+#define NK_TEXTEDIT_UNDOCHARCOUNT      999
+#endif
+
+struct nk_text_edit;
+struct nk_clipboard {
+    nk_handle userdata;
+    nk_plugin_paste paste;
+    nk_plugin_copy copy;
+};
+
+struct nk_text_undo_record {
+   int where;
+   short insert_length;
+   short delete_length;
+   short char_storage;
+};
+
+struct nk_text_undo_state {
+   struct nk_text_undo_record undo_rec[NK_TEXTEDIT_UNDOSTATECOUNT];
+   nk_rune undo_char[NK_TEXTEDIT_UNDOCHARCOUNT];
+   short undo_point;
+   short redo_point;
+   short undo_char_point;
+   short redo_char_point;
+};
+
+enum nk_text_edit_type {
+    NK_TEXT_EDIT_SINGLE_LINE,
+    NK_TEXT_EDIT_MULTI_LINE
+};
+
+enum nk_text_edit_mode {
+    NK_TEXT_EDIT_MODE_VIEW,
+    NK_TEXT_EDIT_MODE_INSERT,
+    NK_TEXT_EDIT_MODE_REPLACE
+};
+
+struct nk_text_edit {
+    struct nk_clipboard clip;
+    struct nk_str string;
+    nk_plugin_filter filter;
+    struct nk_vec2 scrollbar;
+
+    int cursor;
+    int select_start;
+    int select_end;
+    unsigned char mode;
+    unsigned char cursor_at_end_of_line;
+    unsigned char initialized;
+    unsigned char has_preferred_x;
+    unsigned char single_line;
+    unsigned char active;
+    unsigned char padding1;
+    float preferred_x;
+    struct nk_text_undo_state undo;
+};
+
+/* filter function */
+NK_API int nk_filter_default(const struct nk_text_edit*, nk_rune unicode);
+NK_API int nk_filter_ascii(const struct nk_text_edit*, nk_rune unicode);
+NK_API int nk_filter_float(const struct nk_text_edit*, nk_rune unicode);
+NK_API int nk_filter_decimal(const struct nk_text_edit*, nk_rune unicode);
+NK_API int nk_filter_hex(const struct nk_text_edit*, nk_rune unicode);
+NK_API int nk_filter_oct(const struct nk_text_edit*, nk_rune unicode);
+NK_API int nk_filter_binary(const struct nk_text_edit*, nk_rune unicode);
+
+/* text editor */
+#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
+NK_API void nk_textedit_init_default(struct nk_text_edit*);
+#endif
+NK_API void nk_textedit_init(struct nk_text_edit*, struct nk_allocator*, nk_size size);
+NK_API void nk_textedit_init_fixed(struct nk_text_edit*, void *memory, nk_size size);
+NK_API void nk_textedit_free(struct nk_text_edit*);
+NK_API void nk_textedit_text(struct nk_text_edit*, const char*, int total_len);
+NK_API void nk_textedit_delete(struct nk_text_edit*, int where, int len);
+NK_API void nk_textedit_delete_selection(struct nk_text_edit*);
+NK_API void nk_textedit_select_all(struct nk_text_edit*);
+NK_API int nk_textedit_cut(struct nk_text_edit*);
+NK_API int nk_textedit_paste(struct nk_text_edit*, char const*, int len);
+NK_API void nk_textedit_undo(struct nk_text_edit*);
+NK_API void nk_textedit_redo(struct nk_text_edit*);
+
+/* ===============================================================
+ *
+ *                          DRAWING
+ *
+ * ===============================================================*/
+/*  This library was designed to be render backend agnostic so it does
+    not draw anything to screen. Instead all drawn shapes, widgets
+    are made of, are buffered into memory and make up a command queue.
+    Each frame therefore fills the command buffer with draw commands
+    that then need to be executed by the user and his own render backend.
+    After that the command buffer needs to be cleared and a new frame can be
+    started. It is probably important to note that the command buffer is the main
+    drawing API and the optional vertex buffer API only takes this format and
+    converts it into a hardware accessible format.
+
+    To use the command queue to draw your own widgets you can access the
+    command buffer of each window by calling `nk_window_get_canvas` after
+    previously having called `nk_begin`:
+
+        void draw_red_rectangle_widget(struct nk_context *ctx)
+        {
+            struct nk_command_buffer *canvas;
+            struct nk_input *input = &ctx->input;
+            canvas = nk_window_get_canvas(ctx);
+
+            struct nk_rect space;
+            enum nk_widget_layout_states state;
+            state = nk_widget(&space, ctx);
+            if (!state) return;
+
+            if (state != NK_WIDGET_ROM)
+                update_your_widget_by_user_input(...);
+            nk_fill_rect(canvas, space, 0, nk_rgb(255,0,0));
+        }
+
+        if (nk_begin(...)) {
+            nk_layout_row_dynamic(ctx, 25, 1);
+            draw_red_rectangle_widget(ctx);
+        }
+        nk_end(..)
+
+    Important to know if you want to create your own widgets is the `nk_widget`
+    call. It allocates space on the panel reserved for this widget to be used,
+    but also returns the state of the widget space. If your widget is not seen and does
+    not have to be updated it is '0' and you can just return. If it only has
+    to be drawn the state will be `NK_WIDGET_ROM` otherwise you can do both
+    update and draw your widget. The reason for separating is to only draw and
+    update what is actually necessary which is crucial for performance.
+*/
+enum nk_command_type {
+    NK_COMMAND_NOP,
+    NK_COMMAND_SCISSOR,
+    NK_COMMAND_LINE,
+    NK_COMMAND_CURVE,
+    NK_COMMAND_RECT,
+    NK_COMMAND_RECT_FILLED,
+    NK_COMMAND_RECT_MULTI_COLOR,
+    NK_COMMAND_CIRCLE,
+    NK_COMMAND_CIRCLE_FILLED,
+    NK_COMMAND_ARC,
+    NK_COMMAND_ARC_FILLED,
+    NK_COMMAND_TRIANGLE,
+    NK_COMMAND_TRIANGLE_FILLED,
+    NK_COMMAND_POLYGON,
+    NK_COMMAND_POLYGON_FILLED,
+    NK_COMMAND_POLYLINE,
+    NK_COMMAND_TEXT,
+    NK_COMMAND_IMAGE,
+    NK_COMMAND_CUSTOM
+};
+
+/* command base and header of every command inside the buffer */
+struct nk_command {
+    enum nk_command_type type;
+    nk_size next;
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+    nk_handle userdata;
+#endif
+};
+
+struct nk_command_scissor {
+    struct nk_command header;
+    short x, y;
+    unsigned short w, h;
+};
+
+struct nk_command_line {
+    struct nk_command header;
+    unsigned short line_thickness;
+    struct nk_vec2i begin;
+    struct nk_vec2i end;
+    struct nk_color color;
+};
+
+struct nk_command_curve {
+    struct nk_command header;
+    unsigned short line_thickness;
+    struct nk_vec2i begin;
+    struct nk_vec2i end;
+    struct nk_vec2i ctrl[2];
+    struct nk_color color;
+};
+
+struct nk_command_rect {
+    struct nk_command header;
+    unsigned short rounding;
+    unsigned short line_thickness;
+    short x, y;
+    unsigned short w, h;
+    struct nk_color color;
+};
+
+struct nk_command_rect_filled {
+    struct nk_command header;
+    unsigned short rounding;
+    short x, y;
+    unsigned short w, h;
+    struct nk_color color;
+};
+
+struct nk_command_rect_multi_color {
+    struct nk_command header;
+    short x, y;
+    unsigned short w, h;
+    struct nk_color left;
+    struct nk_color top;
+    struct nk_color bottom;
+    struct nk_color right;
+};
+
+struct nk_command_triangle {
+    struct nk_command header;
+    unsigned short line_thickness;
+    struct nk_vec2i a;
+    struct nk_vec2i b;
+    struct nk_vec2i c;
+    struct nk_color color;
+};
+
+struct nk_command_triangle_filled {
+    struct nk_command header;
+    struct nk_vec2i a;
+    struct nk_vec2i b;
+    struct nk_vec2i c;
+    struct nk_color color;
+};
+
+struct nk_command_circle {
+    struct nk_command header;
+    short x, y;
+    unsigned short line_thickness;
+    unsigned short w, h;
+    struct nk_color color;
+};
+
+struct nk_command_circle_filled {
+    struct nk_command header;
+    short x, y;
+    unsigned short w, h;
+    struct nk_color color;
+};
+
+struct nk_command_arc {
+    struct nk_command header;
+    short cx, cy;
+    unsigned short r;
+    unsigned short line_thickness;
+    float a[2];
+    struct nk_color color;
+};
+
+struct nk_command_arc_filled {
+    struct nk_command header;
+    short cx, cy;
+    unsigned short r;
+    float a[2];
+    struct nk_color color;
+};
+
+struct nk_command_polygon {
+    struct nk_command header;
+    struct nk_color color;
+    unsigned short line_thickness;
+    unsigned short point_count;
+    struct nk_vec2i points[1];
+};
+
+struct nk_command_polygon_filled {
+    struct nk_command header;
+    struct nk_color color;
+    unsigned short point_count;
+    struct nk_vec2i points[1];
+};
+
+struct nk_command_polyline {
+    struct nk_command header;
+    struct nk_color color;
+    unsigned short line_thickness;
+    unsigned short point_count;
+    struct nk_vec2i points[1];
+};
+
+struct nk_command_image {
+    struct nk_command header;
+    short x, y;
+    unsigned short w, h;
+    struct nk_image img;
+    struct nk_color col;
+};
+
+typedef void (*nk_command_custom_callback)(void *canvas, short x,short y,
+    unsigned short w, unsigned short h, nk_handle callback_data);
+struct nk_command_custom {
+    struct nk_command header;
+    short x, y;
+    unsigned short w, h;
+    nk_handle callback_data;
+    nk_command_custom_callback callback;
+};
+
+struct nk_command_text {
+    struct nk_command header;
+    const struct nk_user_font *font;
+    struct nk_color background;
+    struct nk_color foreground;
+    short x, y;
+    unsigned short w, h;
+    float height;
+    int length;
+    char string[1];
+};
+
+enum nk_command_clipping {
+    NK_CLIPPING_OFF = nk_false,
+    NK_CLIPPING_ON = nk_true
+};
+
+struct nk_command_buffer {
+    struct nk_buffer *base;
+    struct nk_rect clip;
+    int use_clipping;
+    nk_handle userdata;
+    nk_size begin, end, last;
+};
+
+/* shape outlines */
+NK_API void nk_stroke_line(struct nk_command_buffer *b, float x0, float y0, float x1, float y1, float line_thickness, struct nk_color);
+NK_API void nk_stroke_curve(struct nk_command_buffer*, float, float, float, float, float, float, float, float, float line_thickness, struct nk_color);
+NK_API void nk_stroke_rect(struct nk_command_buffer*, struct nk_rect, float rounding, float line_thickness, struct nk_color);
+NK_API void nk_stroke_circle(struct nk_command_buffer*, struct nk_rect, float line_thickness, struct nk_color);
+NK_API void nk_stroke_arc(struct nk_command_buffer*, float cx, float cy, float radius, float a_min, float a_max, float line_thickness, struct nk_color);
+NK_API void nk_stroke_triangle(struct nk_command_buffer*, float, float, float, float, float, float, float line_thichness, struct nk_color);
+NK_API void nk_stroke_polyline(struct nk_command_buffer*, float *points, int point_count, float line_thickness, struct nk_color col);
+NK_API void nk_stroke_polygon(struct nk_command_buffer*, float*, int point_count, float line_thickness, struct nk_color);
+
+/* filled shades */
+NK_API void nk_fill_rect(struct nk_command_buffer*, struct nk_rect, float rounding, struct nk_color);
+NK_API void nk_fill_rect_multi_color(struct nk_command_buffer*, struct nk_rect, struct nk_color left, struct nk_color top, struct nk_color right, struct nk_color bottom);
+NK_API void nk_fill_circle(struct nk_command_buffer*, struct nk_rect, struct nk_color);
+NK_API void nk_fill_arc(struct nk_command_buffer*, float cx, float cy, float radius, float a_min, float a_max, struct nk_color);
+NK_API void nk_fill_triangle(struct nk_command_buffer*, float x0, float y0, float x1, float y1, float x2, float y2, struct nk_color);
+NK_API void nk_fill_polygon(struct nk_command_buffer*, float*, int point_count, struct nk_color);
+
+/* misc */
+NK_API void nk_draw_image(struct nk_command_buffer*, struct nk_rect, const struct nk_image*, struct nk_color);
+NK_API void nk_draw_text(struct nk_command_buffer*, struct nk_rect, const char *text, int len, const struct nk_user_font*, struct nk_color, struct nk_color);
+NK_API void nk_push_scissor(struct nk_command_buffer*, struct nk_rect);
+NK_API void nk_push_custom(struct nk_command_buffer*, struct nk_rect, nk_command_custom_callback, nk_handle usr);
+
+/* ===============================================================
+ *
+ *                          INPUT
+ *
+ * ===============================================================*/
+struct nk_mouse_button {
+    int down;
+    unsigned int clicked;
+    struct nk_vec2 clicked_pos;
+};
+struct nk_mouse {
+    struct nk_mouse_button buttons[NK_BUTTON_MAX];
+    struct nk_vec2 pos;
+    struct nk_vec2 prev;
+    struct nk_vec2 delta;
+    struct nk_vec2 scroll_delta;
+    unsigned char grab;
+    unsigned char grabbed;
+    unsigned char ungrab;
+};
+
+struct nk_key {
+    int down;
+    unsigned int clicked;
+};
+struct nk_keyboard {
+    struct nk_key keys[NK_KEY_MAX];
+    char text[NK_INPUT_MAX];
+    int text_len;
+};
+
+struct nk_input {
+    struct nk_keyboard keyboard;
+    struct nk_mouse mouse;
+};
+
+NK_API int nk_input_has_mouse_click(const struct nk_input*, enum nk_buttons);
+NK_API int nk_input_has_mouse_click_in_rect(const struct nk_input*, enum nk_buttons, struct nk_rect);
+NK_API int nk_input_has_mouse_click_down_in_rect(const struct nk_input*, enum nk_buttons, struct nk_rect, int down);
+NK_API int nk_input_is_mouse_click_in_rect(const struct nk_input*, enum nk_buttons, struct nk_rect);
+NK_API int nk_input_is_mouse_click_down_in_rect(const struct nk_input *i, enum nk_buttons id, struct nk_rect b, int down);
+NK_API int nk_input_any_mouse_click_in_rect(const struct nk_input*, struct nk_rect);
+NK_API int nk_input_is_mouse_prev_hovering_rect(const struct nk_input*, struct nk_rect);
+NK_API int nk_input_is_mouse_hovering_rect(const struct nk_input*, struct nk_rect);
+NK_API int nk_input_mouse_clicked(const struct nk_input*, enum nk_buttons, struct nk_rect);
+NK_API int nk_input_is_mouse_down(const struct nk_input*, enum nk_buttons);
+NK_API int nk_input_is_mouse_pressed(const struct nk_input*, enum nk_buttons);
+NK_API int nk_input_is_mouse_released(const struct nk_input*, enum nk_buttons);
+NK_API int nk_input_is_key_pressed(const struct nk_input*, enum nk_keys);
+NK_API int nk_input_is_key_released(const struct nk_input*, enum nk_keys);
+NK_API int nk_input_is_key_down(const struct nk_input*, enum nk_keys);
+
+/* ===============================================================
+ *
+ *                          DRAW LIST
+ *
+ * ===============================================================*/
+#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
+/*  The optional vertex buffer draw list provides a 2D drawing context
+    with antialiasing functionality which takes basic filled or outlined shapes
+    or a path and outputs vertexes, elements and draw commands.
+    The actual draw list API is not required to be used directly while using this
+    library since converting the default library draw command output is done by
+    just calling `nk_convert` but I decided to still make this library accessible
+    since it can be useful.
+
+    The draw list is based on a path buffering and polygon and polyline
+    rendering API which allows a lot of ways to draw 2D content to screen.
+    In fact it is probably more powerful than needed but allows even more crazy
+    things than this library provides by default.
+*/
+#ifdef NK_UINT_DRAW_INDEX
+typedef nk_uint nk_draw_index;
+#else
+typedef nk_ushort nk_draw_index;
+#endif
+enum nk_draw_list_stroke {
+    NK_STROKE_OPEN = nk_false,
+    /* build up path has no connection back to the beginning */
+    NK_STROKE_CLOSED = nk_true
+    /* build up path has a connection back to the beginning */
+};
+
+enum nk_draw_vertex_layout_attribute {
+    NK_VERTEX_POSITION,
+    NK_VERTEX_COLOR,
+    NK_VERTEX_TEXCOORD,
+    NK_VERTEX_ATTRIBUTE_COUNT
+};
+
+enum nk_draw_vertex_layout_format {
+    NK_FORMAT_SCHAR,
+    NK_FORMAT_SSHORT,
+    NK_FORMAT_SINT,
+    NK_FORMAT_UCHAR,
+    NK_FORMAT_USHORT,
+    NK_FORMAT_UINT,
+    NK_FORMAT_FLOAT,
+    NK_FORMAT_DOUBLE,
+
+NK_FORMAT_COLOR_BEGIN,
+    NK_FORMAT_R8G8B8 = NK_FORMAT_COLOR_BEGIN,
+    NK_FORMAT_R16G15B16,
+    NK_FORMAT_R32G32B32,
+
+    NK_FORMAT_R8G8B8A8,
+    NK_FORMAT_B8G8R8A8,
+    NK_FORMAT_R16G15B16A16,
+    NK_FORMAT_R32G32B32A32,
+    NK_FORMAT_R32G32B32A32_FLOAT,
+    NK_FORMAT_R32G32B32A32_DOUBLE,
+
+    NK_FORMAT_RGB32,
+    NK_FORMAT_RGBA32,
+NK_FORMAT_COLOR_END = NK_FORMAT_RGBA32,
+    NK_FORMAT_COUNT
+};
+
+#define NK_VERTEX_LAYOUT_END NK_VERTEX_ATTRIBUTE_COUNT,NK_FORMAT_COUNT,0
+struct nk_draw_vertex_layout_element {
+    enum nk_draw_vertex_layout_attribute attribute;
+    enum nk_draw_vertex_layout_format format;
+    nk_size offset;
+};
+
+struct nk_draw_command {
+    unsigned int elem_count;
+    /* number of elements in the current draw batch */
+    struct nk_rect clip_rect;
+    /* current screen clipping rectangle */
+    nk_handle texture;
+    /* current texture to set */
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+    nk_handle userdata;
+#endif
+};
+
+struct nk_draw_list {
+    struct nk_rect clip_rect;
+    struct nk_vec2 circle_vtx[12];
+    struct nk_convert_config config;
+
+    struct nk_buffer *buffer;
+    struct nk_buffer *vertices;
+    struct nk_buffer *elements;
+
+    unsigned int element_count;
+    unsigned int vertex_count;
+    unsigned int cmd_count;
+    nk_size cmd_offset;
+
+    unsigned int path_count;
+    unsigned int path_offset;
+
+    enum nk_anti_aliasing line_AA;
+    enum nk_anti_aliasing shape_AA;
+
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+    nk_handle userdata;
+#endif
+};
+
+/* draw list */
+NK_API void nk_draw_list_init(struct nk_draw_list*);
+NK_API void nk_draw_list_setup(struct nk_draw_list*, const struct nk_convert_config*, struct nk_buffer *cmds, struct nk_buffer *vertices, struct nk_buffer *elements, enum nk_anti_aliasing line_aa,enum nk_anti_aliasing shape_aa);
+
+/* drawing */
+#define nk_draw_list_foreach(cmd, can, b) for((cmd)=nk__draw_list_begin(can, b); (cmd)!=0; (cmd)=nk__draw_list_next(cmd, b, can))
+NK_API const struct nk_draw_command* nk__draw_list_begin(const struct nk_draw_list*, const struct nk_buffer*);
+NK_API const struct nk_draw_command* nk__draw_list_next(const struct nk_draw_command*, const struct nk_buffer*, const struct nk_draw_list*);
+NK_API const struct nk_draw_command* nk__draw_list_end(const struct nk_draw_list*, const struct nk_buffer*);
+
+/* path */
+NK_API void nk_draw_list_path_clear(struct nk_draw_list*);
+NK_API void nk_draw_list_path_line_to(struct nk_draw_list*, struct nk_vec2 pos);
+NK_API void nk_draw_list_path_arc_to_fast(struct nk_draw_list*, struct nk_vec2 center, float radius, int a_min, int a_max);
+NK_API void nk_draw_list_path_arc_to(struct nk_draw_list*, struct nk_vec2 center, float radius, float a_min, float a_max, unsigned int segments);
+NK_API void nk_draw_list_path_rect_to(struct nk_draw_list*, struct nk_vec2 a, struct nk_vec2 b, float rounding);
+NK_API void nk_draw_list_path_curve_to(struct nk_draw_list*, struct nk_vec2 p2, struct nk_vec2 p3, struct nk_vec2 p4, unsigned int num_segments);
+NK_API void nk_draw_list_path_fill(struct nk_draw_list*, struct nk_color);
+NK_API void nk_draw_list_path_stroke(struct nk_draw_list*, struct nk_color, enum nk_draw_list_stroke closed, float thickness);
+
+/* stroke */
+NK_API void nk_draw_list_stroke_line(struct nk_draw_list*, struct nk_vec2 a, struct nk_vec2 b, struct nk_color, float thickness);
+NK_API void nk_draw_list_stroke_rect(struct nk_draw_list*, struct nk_rect rect, struct nk_color, float rounding, float thickness);
+NK_API void nk_draw_list_stroke_triangle(struct nk_draw_list*, struct nk_vec2 a, struct nk_vec2 b, struct nk_vec2 c, struct nk_color, float thickness);
+NK_API void nk_draw_list_stroke_circle(struct nk_draw_list*, struct nk_vec2 center, float radius, struct nk_color, unsigned int segs, float thickness);
+NK_API void nk_draw_list_stroke_curve(struct nk_draw_list*, struct nk_vec2 p0, struct nk_vec2 cp0, struct nk_vec2 cp1, struct nk_vec2 p1, struct nk_color, unsigned int segments, float thickness);
+NK_API void nk_draw_list_stroke_poly_line(struct nk_draw_list*, const struct nk_vec2 *pnts, const unsigned int cnt, struct nk_color, enum nk_draw_list_stroke, float thickness, enum nk_anti_aliasing);
+
+/* fill */
+NK_API void nk_draw_list_fill_rect(struct nk_draw_list*, struct nk_rect rect, struct nk_color, float rounding);
+NK_API void nk_draw_list_fill_rect_multi_color(struct nk_draw_list*, struct nk_rect rect, struct nk_color left, struct nk_color top, struct nk_color right, struct nk_color bottom);
+NK_API void nk_draw_list_fill_triangle(struct nk_draw_list*, struct nk_vec2 a, struct nk_vec2 b, struct nk_vec2 c, struct nk_color);
+NK_API void nk_draw_list_fill_circle(struct nk_draw_list*, struct nk_vec2 center, float radius, struct nk_color col, unsigned int segs);
+NK_API void nk_draw_list_fill_poly_convex(struct nk_draw_list*, const struct nk_vec2 *points, const unsigned int count, struct nk_color, enum nk_anti_aliasing);
+
+/* misc */
+NK_API void nk_draw_list_add_image(struct nk_draw_list*, struct nk_image texture, struct nk_rect rect, struct nk_color);
+NK_API void nk_draw_list_add_text(struct nk_draw_list*, const struct nk_user_font*, struct nk_rect, const char *text, int len, float font_height, struct nk_color);
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+NK_API void nk_draw_list_push_userdata(struct nk_draw_list*, nk_handle userdata);
+#endif
+
+#endif
+
+/* ===============================================================
+ *
+ *                          GUI
+ *
+ * ===============================================================*/
+enum nk_style_item_type {
+    NK_STYLE_ITEM_COLOR,
+    NK_STYLE_ITEM_IMAGE
+};
+
+union nk_style_item_data {
+    struct nk_image image;
+    struct nk_color color;
+};
+
+struct nk_style_item {
+    enum nk_style_item_type type;
+    union nk_style_item_data data;
+};
+
+struct nk_style_text {
+    struct nk_color color;
+    struct nk_vec2 padding;
+};
+
+struct nk_style_button {
+    /* background */
+    struct nk_style_item normal;
+    struct nk_style_item hover;
+    struct nk_style_item active;
+    struct nk_color border_color;
+
+    /* text */
+    struct nk_color text_background;
+    struct nk_color text_normal;
+    struct nk_color text_hover;
+    struct nk_color text_active;
+    nk_flags text_alignment;
+
+    /* properties */
+    float border;
+    float rounding;
+    struct nk_vec2 padding;
+    struct nk_vec2 image_padding;
+    struct nk_vec2 touch_padding;
+
+    /* optional user callbacks */
+    nk_handle userdata;
+    void(*draw_begin)(struct nk_command_buffer*, nk_handle userdata);
+    void(*draw_end)(struct nk_command_buffer*, nk_handle userdata);
+};
+
+struct nk_style_toggle {
+    /* background */
+    struct nk_style_item normal;
+    struct nk_style_item hover;
+    struct nk_style_item active;
+    struct nk_color border_color;
+
+    /* cursor */
+    struct nk_style_item cursor_normal;
+    struct nk_style_item cursor_hover;
+
+    /* text */
+    struct nk_color text_normal;
+    struct nk_color text_hover;
+    struct nk_color text_active;
+    struct nk_color text_background;
+    nk_flags text_alignment;
+
+    /* properties */
+    struct nk_vec2 padding;
+    struct nk_vec2 touch_padding;
+    float spacing;
+    float border;
+
+    /* optional user callbacks */
+    nk_handle userdata;
+    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
+    void(*draw_end)(struct nk_command_buffer*, nk_handle);
+};
+
+struct nk_style_selectable {
+    /* background (inactive) */
+    struct nk_style_item normal;
+    struct nk_style_item hover;
+    struct nk_style_item pressed;
+
+    /* background (active) */
+    struct nk_style_item normal_active;
+    struct nk_style_item hover_active;
+    struct nk_style_item pressed_active;
+
+    /* text color (inactive) */
+    struct nk_color text_normal;
+    struct nk_color text_hover;
+    struct nk_color text_pressed;
+
+    /* text color (active) */
+    struct nk_color text_normal_active;
+    struct nk_color text_hover_active;
+    struct nk_color text_pressed_active;
+    struct nk_color text_background;
+    nk_flags text_alignment;
+
+    /* properties */
+    float rounding;
+    struct nk_vec2 padding;
+    struct nk_vec2 touch_padding;
+    struct nk_vec2 image_padding;
+
+    /* optional user callbacks */
+    nk_handle userdata;
+    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
+    void(*draw_end)(struct nk_command_buffer*, nk_handle);
+};
+
+struct nk_style_slider {
+    /* background */
+    struct nk_style_item normal;
+    struct nk_style_item hover;
+    struct nk_style_item active;
+    struct nk_color border_color;
+
+    /* background bar */
+    struct nk_color bar_normal;
+    struct nk_color bar_hover;
+    struct nk_color bar_active;
+    struct nk_color bar_filled;
+
+    /* cursor */
+    struct nk_style_item cursor_normal;
+    struct nk_style_item cursor_hover;
+    struct nk_style_item cursor_active;
+
+    /* properties */
+    float border;
+    float rounding;
+    float bar_height;
+    struct nk_vec2 padding;
+    struct nk_vec2 spacing;
+    struct nk_vec2 cursor_size;
+
+    /* optional buttons */
+    int show_buttons;
+    struct nk_style_button inc_button;
+    struct nk_style_button dec_button;
+    enum nk_symbol_type inc_symbol;
+    enum nk_symbol_type dec_symbol;
+
+    /* optional user callbacks */
+    nk_handle userdata;
+    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
+    void(*draw_end)(struct nk_command_buffer*, nk_handle);
+};
+
+struct nk_style_progress {
+    /* background */
+    struct nk_style_item normal;
+    struct nk_style_item hover;
+    struct nk_style_item active;
+    struct nk_color border_color;
+
+    /* cursor */
+    struct nk_style_item cursor_normal;
+    struct nk_style_item cursor_hover;
+    struct nk_style_item cursor_active;
+    struct nk_color cursor_border_color;
+
+    /* properties */
+    float rounding;
+    float border;
+    float cursor_border;
+    float cursor_rounding;
+    struct nk_vec2 padding;
+
+    /* optional user callbacks */
+    nk_handle userdata;
+    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
+    void(*draw_end)(struct nk_command_buffer*, nk_handle);
+};
+
+struct nk_style_scrollbar {
+    /* background */
+    struct nk_style_item normal;
+    struct nk_style_item hover;
+    struct nk_style_item active;
+    struct nk_color border_color;
+
+    /* cursor */
+    struct nk_style_item cursor_normal;
+    struct nk_style_item cursor_hover;
+    struct nk_style_item cursor_active;
+    struct nk_color cursor_border_color;
+
+    /* properties */
+    float border;
+    float rounding;
+    float border_cursor;
+    float rounding_cursor;
+    struct nk_vec2 padding;
+
+    /* optional buttons */
+    int show_buttons;
+    struct nk_style_button inc_button;
+    struct nk_style_button dec_button;
+    enum nk_symbol_type inc_symbol;
+    enum nk_symbol_type dec_symbol;
+
+    /* optional user callbacks */
+    nk_handle userdata;
+    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
+    void(*draw_end)(struct nk_command_buffer*, nk_handle);
+};
+
+struct nk_style_edit {
+    /* background */
+    struct nk_style_item normal;
+    struct nk_style_item hover;
+    struct nk_style_item active;
+    struct nk_color border_color;
+    struct nk_style_scrollbar scrollbar;
+
+    /* cursor  */
+    struct nk_color cursor_normal;
+    struct nk_color cursor_hover;
+    struct nk_color cursor_text_normal;
+    struct nk_color cursor_text_hover;
+
+    /* text (unselected) */
+    struct nk_color text_normal;
+    struct nk_color text_hover;
+    struct nk_color text_active;
+
+    /* text (selected) */
+    struct nk_color selected_normal;
+    struct nk_color selected_hover;
+    struct nk_color selected_text_normal;
+    struct nk_color selected_text_hover;
+
+    /* properties */
+    float border;
+    float rounding;
+    float cursor_size;
+    struct nk_vec2 scrollbar_size;
+    struct nk_vec2 padding;
+    float row_padding;
+};
+
+struct nk_style_property {
+    /* background */
+    struct nk_style_item normal;
+    struct nk_style_item hover;
+    struct nk_style_item active;
+    struct nk_color border_color;
+
+    /* text */
+    struct nk_color label_normal;
+    struct nk_color label_hover;
+    struct nk_color label_active;
+
+    /* symbols */
+    enum nk_symbol_type sym_left;
+    enum nk_symbol_type sym_right;
+
+    /* properties */
+    float border;
+    float rounding;
+    struct nk_vec2 padding;
+
+    struct nk_style_edit edit;
+    struct nk_style_button inc_button;
+    struct nk_style_button dec_button;
+
+    /* optional user callbacks */
+    nk_handle userdata;
+    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
+    void(*draw_end)(struct nk_command_buffer*, nk_handle);
+};
+
+struct nk_style_chart {
+    /* colors */
+    struct nk_style_item background;
+    struct nk_color border_color;
+    struct nk_color selected_color;
+    struct nk_color color;
+
+    /* properties */
+    float border;
+    float rounding;
+    struct nk_vec2 padding;
+};
+
+struct nk_style_combo {
+    /* background */
+    struct nk_style_item normal;
+    struct nk_style_item hover;
+    struct nk_style_item active;
+    struct nk_color border_color;
+
+    /* label */
+    struct nk_color label_normal;
+    struct nk_color label_hover;
+    struct nk_color label_active;
+
+    /* symbol */
+    struct nk_color symbol_normal;
+    struct nk_color symbol_hover;
+    struct nk_color symbol_active;
+
+    /* button */
+    struct nk_style_button button;
+    enum nk_symbol_type sym_normal;
+    enum nk_symbol_type sym_hover;
+    enum nk_symbol_type sym_active;
+
+    /* properties */
+    float border;
+    float rounding;
+    struct nk_vec2 content_padding;
+    struct nk_vec2 button_padding;
+    struct nk_vec2 spacing;
+};
+
+struct nk_style_tab {
+    /* background */
+    struct nk_style_item background;
+    struct nk_color border_color;
+    struct nk_color text;
+
+    /* button */
+    struct nk_style_button tab_maximize_button;
+    struct nk_style_button tab_minimize_button;
+    struct nk_style_button node_maximize_button;
+    struct nk_style_button node_minimize_button;
+    enum nk_symbol_type sym_minimize;
+    enum nk_symbol_type sym_maximize;
+
+    /* properties */
+    float border;
+    float rounding;
+    float indent;
+    struct nk_vec2 padding;
+    struct nk_vec2 spacing;
+};
+
+enum nk_style_header_align {
+    NK_HEADER_LEFT,
+    NK_HEADER_RIGHT
+};
+struct nk_style_window_header {
+    /* background */
+    struct nk_style_item normal;
+    struct nk_style_item hover;
+    struct nk_style_item active;
+
+    /* button */
+    struct nk_style_button close_button;
+    struct nk_style_button minimize_button;
+    enum nk_symbol_type close_symbol;
+    enum nk_symbol_type minimize_symbol;
+    enum nk_symbol_type maximize_symbol;
+
+    /* title */
+    struct nk_color label_normal;
+    struct nk_color label_hover;
+    struct nk_color label_active;
+
+    /* properties */
+    enum nk_style_header_align align;
+    struct nk_vec2 padding;
+    struct nk_vec2 label_padding;
+    struct nk_vec2 spacing;
+};
+
+struct nk_style_window {
+    struct nk_style_window_header header;
+    struct nk_style_item fixed_background;
+    struct nk_color background;
+
+    struct nk_color border_color;
+    struct nk_color popup_border_color;
+    struct nk_color combo_border_color;
+    struct nk_color contextual_border_color;
+    struct nk_color menu_border_color;
+    struct nk_color group_border_color;
+    struct nk_color tooltip_border_color;
+    struct nk_style_item scaler;
+
+    float border;
+    float combo_border;
+    float contextual_border;
+    float menu_border;
+    float group_border;
+    float tooltip_border;
+    float popup_border;
+    float min_row_height_padding;
+
+    float rounding;
+    struct nk_vec2 spacing;
+    struct nk_vec2 scrollbar_size;
+    struct nk_vec2 min_size;
+
+    struct nk_vec2 padding;
+    struct nk_vec2 group_padding;
+    struct nk_vec2 popup_padding;
+    struct nk_vec2 combo_padding;
+    struct nk_vec2 contextual_padding;
+    struct nk_vec2 menu_padding;
+    struct nk_vec2 tooltip_padding;
+};
+
+struct nk_style {
+    const struct nk_user_font *font;
+    const struct nk_cursor *cursors[NK_CURSOR_COUNT];
+    const struct nk_cursor *cursor_active;
+    struct nk_cursor *cursor_last;
+    int cursor_visible;
+
+    struct nk_style_text text;
+    struct nk_style_button button;
+    struct nk_style_button contextual_button;
+    struct nk_style_button menu_button;
+    struct nk_style_toggle option;
+    struct nk_style_toggle checkbox;
+    struct nk_style_selectable selectable;
+    struct nk_style_slider slider;
+    struct nk_style_progress progress;
+    struct nk_style_property property;
+    struct nk_style_edit edit;
+    struct nk_style_chart chart;
+    struct nk_style_scrollbar scrollh;
+    struct nk_style_scrollbar scrollv;
+    struct nk_style_tab tab;
+    struct nk_style_combo combo;
+    struct nk_style_window window;
+};
+
+NK_API struct nk_style_item nk_style_item_image(struct nk_image img);
+NK_API struct nk_style_item nk_style_item_color(struct nk_color);
+NK_API struct nk_style_item nk_style_item_hide(void);
+
+/*==============================================================
+ *                          PANEL
+ * =============================================================*/
+#ifndef NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS
+#define NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS 16
+#endif
+#ifndef NK_CHART_MAX_SLOT
+#define NK_CHART_MAX_SLOT 4
+#endif
+
+enum nk_panel_type {
+    NK_PANEL_NONE       = 0,
+    NK_PANEL_WINDOW     = NK_FLAG(0),
+    NK_PANEL_GROUP      = NK_FLAG(1),
+    NK_PANEL_POPUP      = NK_FLAG(2),
+    NK_PANEL_CONTEXTUAL = NK_FLAG(4),
+    NK_PANEL_COMBO      = NK_FLAG(5),
+    NK_PANEL_MENU       = NK_FLAG(6),
+    NK_PANEL_TOOLTIP    = NK_FLAG(7)
+};
+enum nk_panel_set {
+    NK_PANEL_SET_NONBLOCK = NK_PANEL_CONTEXTUAL|NK_PANEL_COMBO|NK_PANEL_MENU|NK_PANEL_TOOLTIP,
+    NK_PANEL_SET_POPUP = NK_PANEL_SET_NONBLOCK|NK_PANEL_POPUP,
+    NK_PANEL_SET_SUB = NK_PANEL_SET_POPUP|NK_PANEL_GROUP
+};
+
+struct nk_chart_slot {
+    enum nk_chart_type type;
+    struct nk_color color;
+    struct nk_color highlight;
+    float min, max, range;
+    int count;
+    struct nk_vec2 last;
+    int index;
+};
+
+struct nk_chart {
+    int slot;
+    float x, y, w, h;
+    struct nk_chart_slot slots[NK_CHART_MAX_SLOT];
+};
+
+enum nk_panel_row_layout_type {
+    NK_LAYOUT_DYNAMIC_FIXED = 0,
+    NK_LAYOUT_DYNAMIC_ROW,
+    NK_LAYOUT_DYNAMIC_FREE,
+    NK_LAYOUT_DYNAMIC,
+    NK_LAYOUT_STATIC_FIXED,
+    NK_LAYOUT_STATIC_ROW,
+    NK_LAYOUT_STATIC_FREE,
+    NK_LAYOUT_STATIC,
+    NK_LAYOUT_TEMPLATE,
+    NK_LAYOUT_COUNT
+};
+struct nk_row_layout {
+    enum nk_panel_row_layout_type type;
+    int index;
+    float height;
+    float min_height;
+    int columns;
+    const float *ratio;
+    float item_width;
+    float item_height;
+    float item_offset;
+    float filled;
+    struct nk_rect item;
+    int tree_depth;
+    float templates[NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS];
+};
+
+struct nk_popup_buffer {
+    nk_size begin;
+    nk_size parent;
+    nk_size last;
+    nk_size end;
+    int active;
+};
+
+struct nk_menu_state {
+    float x, y, w, h;
+    struct nk_scroll offset;
+};
+
+struct nk_panel {
+    enum nk_panel_type type;
+    nk_flags flags;
+    struct nk_rect bounds;
+    nk_uint *offset_x;
+    nk_uint *offset_y;
+    float at_x, at_y, max_x;
+    float footer_height;
+    float header_height;
+    float border;
+    unsigned int has_scrolling;
+    struct nk_rect clip;
+    struct nk_menu_state menu;
+    struct nk_row_layout row;
+    struct nk_chart chart;
+    struct nk_command_buffer *buffer;
+    struct nk_panel *parent;
+};
+
+/*==============================================================
+ *                          WINDOW
+ * =============================================================*/
+#ifndef NK_WINDOW_MAX_NAME
+#define NK_WINDOW_MAX_NAME 64
+#endif
+
+struct nk_table;
+enum nk_window_flags {
+    NK_WINDOW_PRIVATE       = NK_FLAG(11),
+    NK_WINDOW_DYNAMIC       = NK_WINDOW_PRIVATE,
+    /* special window type growing up in height while being filled to a certain maximum height */
+    NK_WINDOW_ROM           = NK_FLAG(12),
+    /* sets window widgets into a read only mode and does not allow input changes */
+    NK_WINDOW_NOT_INTERACTIVE = NK_WINDOW_ROM|NK_WINDOW_NO_INPUT,
+    /* prevents all interaction caused by input to either window or widgets inside */
+    NK_WINDOW_HIDDEN        = NK_FLAG(13),
+    /* Hides window and stops any window interaction and drawing */
+    NK_WINDOW_CLOSED        = NK_FLAG(14),
+    /* Directly closes and frees the window at the end of the frame */
+    NK_WINDOW_MINIMIZED     = NK_FLAG(15),
+    /* marks the window as minimized */
+    NK_WINDOW_REMOVE_ROM    = NK_FLAG(16)
+    /* Removes read only mode at the end of the window */
+};
+
+struct nk_popup_state {
+    struct nk_window *win;
+    enum nk_panel_type type;
+    struct nk_popup_buffer buf;
+    nk_hash name;
+    int active;
+    unsigned combo_count;
+    unsigned con_count, con_old;
+    unsigned active_con;
+    struct nk_rect header;
+};
+
+struct nk_edit_state {
+    nk_hash name;
+    unsigned int seq;
+    unsigned int old;
+    int active, prev;
+    int cursor;
+    int sel_start;
+    int sel_end;
+    struct nk_scroll scrollbar;
+    unsigned char mode;
+    unsigned char single_line;
+};
+
+struct nk_property_state {
+    int active, prev;
+    char buffer[NK_MAX_NUMBER_BUFFER];
+    int length;
+    int cursor;
+    int select_start;
+    int select_end;
+    nk_hash name;
+    unsigned int seq;
+    unsigned int old;
+    int state;
+};
+
+struct nk_window {
+    unsigned int seq;
+    nk_hash name;
+    char name_string[NK_WINDOW_MAX_NAME];
+    nk_flags flags;
+
+    struct nk_rect bounds;
+    struct nk_scroll scrollbar;
+    struct nk_command_buffer buffer;
+    struct nk_panel *layout;
+    float scrollbar_hiding_timer;
+
+    /* persistent widget state */
+    struct nk_property_state property;
+    struct nk_popup_state popup;
+    struct nk_edit_state edit;
+    unsigned int scrolled;
+
+    struct nk_table *tables;
+    unsigned int table_count;
+
+    /* window list hooks */
+    struct nk_window *next;
+    struct nk_window *prev;
+    struct nk_window *parent;
+};
+
+/*==============================================================
+ *                          STACK
+ * =============================================================*/
+/* The style modifier stack can be used to temporarily change a
+ * property inside `nk_style`. For example if you want a special
+ * red button you can temporarily push the old button color onto a stack
+ * draw the button with a red color and then you just pop the old color
+ * back from the stack:
+ *
+ *      nk_style_push_style_item(ctx, &ctx->style.button.normal, nk_style_item_color(nk_rgb(255,0,0)));
+ *      nk_style_push_style_item(ctx, &ctx->style.button.hover, nk_style_item_color(nk_rgb(255,0,0)));
+ *      nk_style_push_style_item(ctx, &ctx->style.button.active, nk_style_item_color(nk_rgb(255,0,0)));
+ *      nk_style_push_vec2(ctx, &cx->style.button.padding, nk_vec2(2,2));
+ *
+ *      nk_button(...);
+ *
+ *      nk_style_pop_style_item(ctx);
+ *      nk_style_pop_style_item(ctx);
+ *      nk_style_pop_style_item(ctx);
+ *      nk_style_pop_vec2(ctx);
+ *
+ * Nuklear has a stack for style_items, float properties, vector properties,
+ * flags, colors, fonts and for button_behavior. Each has it's own fixed size stack
+ * which can be changed at compile time.
+ */
+#ifndef NK_BUTTON_BEHAVIOR_STACK_SIZE
+#define NK_BUTTON_BEHAVIOR_STACK_SIZE 8
+#endif
+
+#ifndef NK_FONT_STACK_SIZE
+#define NK_FONT_STACK_SIZE 8
+#endif
+
+#ifndef NK_STYLE_ITEM_STACK_SIZE
+#define NK_STYLE_ITEM_STACK_SIZE 16
+#endif
+
+#ifndef NK_FLOAT_STACK_SIZE
+#define NK_FLOAT_STACK_SIZE 32
+#endif
+
+#ifndef NK_VECTOR_STACK_SIZE
+#define NK_VECTOR_STACK_SIZE 16
+#endif
+
+#ifndef NK_FLAGS_STACK_SIZE
+#define NK_FLAGS_STACK_SIZE 32
+#endif
+
+#ifndef NK_COLOR_STACK_SIZE
+#define NK_COLOR_STACK_SIZE 32
+#endif
+
+#define NK_CONFIGURATION_STACK_TYPE(prefix, name, type)\
+    struct nk_config_stack_##name##_element {\
+        prefix##_##type *address;\
+        prefix##_##type old_value;\
+    }
+#define NK_CONFIG_STACK(type,size)\
+    struct nk_config_stack_##type {\
+        int head;\
+        struct nk_config_stack_##type##_element elements[size];\
+    }
+
+#define nk_float float
+NK_CONFIGURATION_STACK_TYPE(struct nk, style_item, style_item);
+NK_CONFIGURATION_STACK_TYPE(nk ,float, float);
+NK_CONFIGURATION_STACK_TYPE(struct nk, vec2, vec2);
+NK_CONFIGURATION_STACK_TYPE(nk ,flags, flags);
+NK_CONFIGURATION_STACK_TYPE(struct nk, color, color);
+NK_CONFIGURATION_STACK_TYPE(const struct nk, user_font, user_font*);
+NK_CONFIGURATION_STACK_TYPE(enum nk, button_behavior, button_behavior);
+
+NK_CONFIG_STACK(style_item, NK_STYLE_ITEM_STACK_SIZE);
+NK_CONFIG_STACK(float, NK_FLOAT_STACK_SIZE);
+NK_CONFIG_STACK(vec2, NK_VECTOR_STACK_SIZE);
+NK_CONFIG_STACK(flags, NK_FLAGS_STACK_SIZE);
+NK_CONFIG_STACK(color, NK_COLOR_STACK_SIZE);
+NK_CONFIG_STACK(user_font, NK_FONT_STACK_SIZE);
+NK_CONFIG_STACK(button_behavior, NK_BUTTON_BEHAVIOR_STACK_SIZE);
+
+struct nk_configuration_stacks {
+    struct nk_config_stack_style_item style_items;
+    struct nk_config_stack_float floats;
+    struct nk_config_stack_vec2 vectors;
+    struct nk_config_stack_flags flags;
+    struct nk_config_stack_color colors;
+    struct nk_config_stack_user_font fonts;
+    struct nk_config_stack_button_behavior button_behaviors;
+};
+
+/*==============================================================
+ *                          CONTEXT
+ * =============================================================*/
+#define NK_VALUE_PAGE_CAPACITY \
+    (((NK_MAX(sizeof(struct nk_window),sizeof(struct nk_panel)) / sizeof(nk_uint))) / 2)
+
+struct nk_table {
+    unsigned int seq;
+    unsigned int size;
+    nk_hash keys[NK_VALUE_PAGE_CAPACITY];
+    nk_uint values[NK_VALUE_PAGE_CAPACITY];
+    struct nk_table *next, *prev;
+};
+
+union nk_page_data {
+    struct nk_table tbl;
+    struct nk_panel pan;
+    struct nk_window win;
+};
+
+struct nk_page_element {
+    union nk_page_data data;
+    struct nk_page_element *next;
+    struct nk_page_element *prev;
+};
+
+struct nk_page {
+    unsigned int size;
+    struct nk_page *next;
+    struct nk_page_element win[1];
+};
+
+struct nk_pool {
+    struct nk_allocator alloc;
+    enum nk_allocation_type type;
+    unsigned int page_count;
+    struct nk_page *pages;
+    struct nk_page_element *freelist;
+    unsigned capacity;
+    nk_size size;
+    nk_size cap;
+};
+
+struct nk_context {
+/* public: can be accessed freely */
+    struct nk_input input;
+    struct nk_style style;
+    struct nk_buffer memory;
+    struct nk_clipboard clip;
+    nk_flags last_widget_state;
+    enum nk_button_behavior button_behavior;
+    struct nk_configuration_stacks stacks;
+    float delta_time_seconds;
+
+/* private:
+    should only be accessed if you
+    know what you are doing */
+#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
+    struct nk_draw_list draw_list;
+#endif
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+    nk_handle userdata;
+#endif
+    /* text editor objects are quite big because of an internal
+     * undo/redo stack. Therefore it does not make sense to have one for
+     * each window for temporary use cases, so I only provide *one* instance
+     * for all windows. This works because the content is cleared anyway */
+    struct nk_text_edit text_edit;
+    /* draw buffer used for overlay drawing operation like cursor */
+    struct nk_command_buffer overlay;
+
+    /* windows */
+    int build;
+    int use_pool;
+    struct nk_pool pool;
+    struct nk_window *begin;
+    struct nk_window *end;
+    struct nk_window *active;
+    struct nk_window *current;
+    struct nk_page_element *freelist;
+    unsigned int count;
+    unsigned int seq;
+};
+
+/* ==============================================================
+ *                          MATH
+ * =============================================================== */
+#define NK_PI 3.141592654f
+#define NK_UTF_INVALID 0xFFFD
+#define NK_MAX_FLOAT_PRECISION 2
+
+#define NK_UNUSED(x) ((void)(x))
+#define NK_SATURATE(x) (NK_MAX(0, NK_MIN(1.0f, x)))
+#define NK_LEN(a) (sizeof(a)/sizeof(a)[0])
+#define NK_ABS(a) (((a) < 0) ? -(a) : (a))
+#define NK_BETWEEN(x, a, b) ((a) <= (x) && (x) < (b))
+#define NK_INBOX(px, py, x, y, w, h)\
+    (NK_BETWEEN(px,x,x+w) && NK_BETWEEN(py,y,y+h))
+#define NK_INTERSECT(x0, y0, w0, h0, x1, y1, w1, h1) \
+    (!(((x1 > (x0 + w0)) || ((x1 + w1) < x0) || (y1 > (y0 + h0)) || (y1 + h1) < y0)))
+#define NK_CONTAINS(x, y, w, h, bx, by, bw, bh)\
+    (NK_INBOX(x,y, bx, by, bw, bh) && NK_INBOX(x+w,y+h, bx, by, bw, bh))
+
+#define nk_vec2_sub(a, b) nk_vec2((a).x - (b).x, (a).y - (b).y)
+#define nk_vec2_add(a, b) nk_vec2((a).x + (b).x, (a).y + (b).y)
+#define nk_vec2_len_sqr(a) ((a).x*(a).x+(a).y*(a).y)
+#define nk_vec2_muls(a, t) nk_vec2((a).x * (t), (a).y * (t))
+
+#define nk_ptr_add(t, p, i) ((t*)((void*)((nk_byte*)(p) + (i))))
+#define nk_ptr_add_const(t, p, i) ((const t*)((const void*)((const nk_byte*)(p) + (i))))
+#define nk_zero_struct(s) nk_zero(&s, sizeof(s))
+
+/* ==============================================================
+ *                          ALIGNMENT
+ * =============================================================== */
+/* Pointer to Integer type conversion for pointer alignment */
+#if defined(__PTRDIFF_TYPE__) /* This case should work for GCC*/
+# define NK_UINT_TO_PTR(x) ((void*)(__PTRDIFF_TYPE__)(x))
+# define NK_PTR_TO_UINT(x) ((nk_size)(__PTRDIFF_TYPE__)(x))
+#elif !defined(__GNUC__) /* works for compilers other than LLVM */
+# define NK_UINT_TO_PTR(x) ((void*)&((char*)0)[x])
+# define NK_PTR_TO_UINT(x) ((nk_size)(((char*)x)-(char*)0))
+#elif defined(NK_USE_FIXED_TYPES) /* used if we have <stdint.h> */
+# define NK_UINT_TO_PTR(x) ((void*)(uintptr_t)(x))
+# define NK_PTR_TO_UINT(x) ((uintptr_t)(x))
+#else /* generates warning but works */
+# define NK_UINT_TO_PTR(x) ((void*)(x))
+# define NK_PTR_TO_UINT(x) ((nk_size)(x))
+#endif
+
+#define NK_ALIGN_PTR(x, mask)\
+    (NK_UINT_TO_PTR((NK_PTR_TO_UINT((nk_byte*)(x) + (mask-1)) & ~(mask-1))))
+#define NK_ALIGN_PTR_BACK(x, mask)\
+    (NK_UINT_TO_PTR((NK_PTR_TO_UINT((nk_byte*)(x)) & ~(mask-1))))
+
+#define NK_OFFSETOF(st,m) ((nk_ptr)&(((st*)0)->m))
+#define NK_CONTAINER_OF(ptr,type,member)\
+    (type*)((void*)((char*)(1 ? (ptr): &((type*)0)->member) - NK_OFFSETOF(type, member)))
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifdef __cplusplus
+template<typename T> struct nk_alignof;
+template<typename T, int size_diff> struct nk_helper{enum {value = size_diff};};
+template<typename T> struct nk_helper<T,0>{enum {value = nk_alignof<T>::value};};
+template<typename T> struct nk_alignof{struct Big {T x; char c;}; enum {
+    diff = sizeof(Big) - sizeof(T), value = nk_helper<Big, diff>::value};};
+#define NK_ALIGNOF(t) (nk_alignof<t>::value)
+#elif defined(_MSC_VER)
+#define NK_ALIGNOF(t) (__alignof(t))
+#else
+#define NK_ALIGNOF(t) ((char*)(&((struct {char c; t _h;}*)0)->_h) - (char*)0)
+#endif
+
+#endif /* NK_NUKLEAR_H_ */
+
+#ifdef NK_IMPLEMENTATION
+
+#ifndef NK_INTERNAL_H
+#define NK_INTERNAL_H
+
+#ifndef NK_POOL_DEFAULT_CAPACITY
+#define NK_POOL_DEFAULT_CAPACITY 16
+#endif
+
+#ifndef NK_DEFAULT_COMMAND_BUFFER_SIZE
+#define NK_DEFAULT_COMMAND_BUFFER_SIZE (4*1024)
+#endif
+
+#ifndef NK_BUFFER_DEFAULT_INITIAL_SIZE
+#define NK_BUFFER_DEFAULT_INITIAL_SIZE (4*1024)
+#endif
+
+/* standard library headers */
+#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
+#include <stdlib.h> /* malloc, free */
+#endif
+#ifdef NK_INCLUDE_STANDARD_IO
+#include <stdio.h> /* fopen, fclose,... */
+#endif
+#ifndef NK_ASSERT
+#include <assert.h>
+#define NK_ASSERT(expr) assert(expr)
+#endif
+
+#ifndef NK_MEMSET
+#define NK_MEMSET nk_memset
+#endif
+#ifndef NK_MEMCPY
+#define NK_MEMCPY nk_memcopy
+#endif
+#ifndef NK_SQRT
+#define NK_SQRT nk_sqrt
+#endif
+#ifndef NK_SIN
+#define NK_SIN nk_sin
+#endif
+#ifndef NK_COS
+#define NK_COS nk_cos
+#endif
+#ifndef NK_STRTOD
+#define NK_STRTOD nk_strtod
+#endif
+#ifndef NK_DTOA
+#define NK_DTOA nk_dtoa
+#endif
+
+#define NK_DEFAULT (-1)
+
+#ifndef NK_VSNPRINTF
+/* If your compiler does support `vsnprintf` I would highly recommend
+ * defining this to vsnprintf instead since `vsprintf` is basically
+ * unbelievable unsafe and should *NEVER* be used. But I have to support
+ * it since C89 only provides this unsafe version. */
+  #if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) ||\
+      (defined(__cplusplus) && (__cplusplus >= 201103L)) || \
+      (defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L)) ||\
+      (defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 500)) ||\
+       defined(_ISOC99_SOURCE) || defined(_BSD_SOURCE)
+      #define NK_VSNPRINTF(s,n,f,a) vsnprintf(s,n,f,a)
+  #else
+    #define NK_VSNPRINTF(s,n,f,a) vsprintf(s,f,a)
+  #endif
+#endif
+
+#define NK_SCHAR_MIN (-127)
+#define NK_SCHAR_MAX 127
+#define NK_UCHAR_MIN 0
+#define NK_UCHAR_MAX 256
+#define NK_SSHORT_MIN (-32767)
+#define NK_SSHORT_MAX 32767
+#define NK_USHORT_MIN 0
+#define NK_USHORT_MAX 65535
+#define NK_SINT_MIN (-2147483647)
+#define NK_SINT_MAX 2147483647
+#define NK_UINT_MIN 0
+#define NK_UINT_MAX 4294967295u
+
+/* Make sure correct type size:
+ * This will fire with a negative subscript error if the type sizes
+ * are set incorrectly by the compiler, and compile out if not */
+NK_STATIC_ASSERT(sizeof(nk_size) >= sizeof(void*));
+NK_STATIC_ASSERT(sizeof(nk_ptr) == sizeof(void*));
+NK_STATIC_ASSERT(sizeof(nk_flags) >= 4);
+NK_STATIC_ASSERT(sizeof(nk_rune) >= 4);
+NK_STATIC_ASSERT(sizeof(nk_ushort) == 2);
+NK_STATIC_ASSERT(sizeof(nk_short) == 2);
+NK_STATIC_ASSERT(sizeof(nk_uint) == 4);
+NK_STATIC_ASSERT(sizeof(nk_int) == 4);
+NK_STATIC_ASSERT(sizeof(nk_byte) == 1);
+
+NK_GLOBAL const struct nk_rect nk_null_rect = {-8192.0f, -8192.0f, 16384, 16384};
+#define NK_FLOAT_PRECISION 0.00000000000001
+
+NK_GLOBAL const struct nk_color nk_red = {255,0,0,255};
+NK_GLOBAL const struct nk_color nk_green = {0,255,0,255};
+NK_GLOBAL const struct nk_color nk_blue = {0,0,255,255};
+NK_GLOBAL const struct nk_color nk_white = {255,255,255,255};
+NK_GLOBAL const struct nk_color nk_black = {0,0,0,255};
+NK_GLOBAL const struct nk_color nk_yellow = {255,255,0,255};
+
+/* widget */
+#define nk_widget_state_reset(s)\
+    if ((*(s)) & NK_WIDGET_STATE_MODIFIED)\
+        (*(s)) = NK_WIDGET_STATE_INACTIVE|NK_WIDGET_STATE_MODIFIED;\
+    else (*(s)) = NK_WIDGET_STATE_INACTIVE;
+
+/* math */
+NK_LIB float nk_inv_sqrt(float n);
+NK_LIB float nk_sqrt(float x);
+NK_LIB float nk_sin(float x);
+NK_LIB float nk_cos(float x);
+NK_LIB nk_uint nk_round_up_pow2(nk_uint v);
+NK_LIB struct nk_rect nk_shrink_rect(struct nk_rect r, float amount);
+NK_LIB struct nk_rect nk_pad_rect(struct nk_rect r, struct nk_vec2 pad);
+NK_LIB void nk_unify(struct nk_rect *clip, const struct nk_rect *a, float x0, float y0, float x1, float y1);
+NK_LIB double nk_pow(double x, int n);
+NK_LIB int nk_ifloord(double x);
+NK_LIB int nk_ifloorf(float x);
+NK_LIB int nk_iceilf(float x);
+NK_LIB int nk_log10(double n);
+
+/* util */
+enum {NK_DO_NOT_STOP_ON_NEW_LINE, NK_STOP_ON_NEW_LINE};
+NK_LIB int nk_is_lower(int c);
+NK_LIB int nk_is_upper(int c);
+NK_LIB int nk_to_upper(int c);
+NK_LIB int nk_to_lower(int c);
+NK_LIB void* nk_memcopy(void *dst, const void *src, nk_size n);
+NK_LIB void nk_memset(void *ptr, int c0, nk_size size);
+NK_LIB void nk_zero(void *ptr, nk_size size);
+NK_LIB char *nk_itoa(char *s, long n);
+NK_LIB int nk_string_float_limit(char *string, int prec);
+NK_LIB char *nk_dtoa(char *s, double n);
+NK_LIB int nk_text_clamp(const struct nk_user_font *font, const char *text, int text_len, float space, int *glyphs, float *text_width, nk_rune *sep_list, int sep_count);
+NK_LIB struct nk_vec2 nk_text_calculate_text_bounds(const struct nk_user_font *font, const char *begin, int byte_len, float row_height, const char **remaining, struct nk_vec2 *out_offset, int *glyphs, int op);
+#ifdef NK_INCLUDE_STANDARD_VARARGS
+NK_LIB int nk_strfmt(char *buf, int buf_size, const char *fmt, va_list args);
+#endif
+#ifdef NK_INCLUDE_STANDARD_IO
+NK_LIB char *nk_file_load(const char* path, nk_size* siz, struct nk_allocator *alloc);
+#endif
+
+/* buffer */
+#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
+NK_LIB void* nk_malloc(nk_handle unused, void *old,nk_size size);
+NK_LIB void nk_mfree(nk_handle unused, void *ptr);
+#endif
+NK_LIB void* nk_buffer_align(void *unaligned, nk_size align, nk_size *alignment, enum nk_buffer_allocation_type type);
+NK_LIB void* nk_buffer_alloc(struct nk_buffer *b, enum nk_buffer_allocation_type type, nk_size size, nk_size align);
+NK_LIB void* nk_buffer_realloc(struct nk_buffer *b, nk_size capacity, nk_size *size);
+
+/* draw */
+NK_LIB void nk_command_buffer_init(struct nk_command_buffer *cb, struct nk_buffer *b, enum nk_command_clipping clip);
+NK_LIB void nk_command_buffer_reset(struct nk_command_buffer *b);
+NK_LIB void* nk_command_buffer_push(struct nk_command_buffer* b, enum nk_command_type t, nk_size size);
+NK_LIB void nk_draw_symbol(struct nk_command_buffer *out, enum nk_symbol_type type, struct nk_rect content, struct nk_color background, struct nk_color foreground, float border_width, const struct nk_user_font *font);
+
+/* buffering */
+NK_LIB void nk_start_buffer(struct nk_context *ctx, struct nk_command_buffer *b);
+NK_LIB void nk_start(struct nk_context *ctx, struct nk_window *win);
+NK_LIB void nk_start_popup(struct nk_context *ctx, struct nk_window *win);
+NK_LIB void nk_finish_popup(struct nk_context *ctx, struct nk_window*);
+NK_LIB void nk_finish_buffer(struct nk_context *ctx, struct nk_command_buffer *b);
+NK_LIB void nk_finish(struct nk_context *ctx, struct nk_window *w);
+NK_LIB void nk_build(struct nk_context *ctx);
+
+/* text editor */
+NK_LIB void nk_textedit_clear_state(struct nk_text_edit *state, enum nk_text_edit_type type, nk_plugin_filter filter);
+NK_LIB void nk_textedit_click(struct nk_text_edit *state, float x, float y, const struct nk_user_font *font, float row_height);
+NK_LIB void nk_textedit_drag(struct nk_text_edit *state, float x, float y, const struct nk_user_font *font, float row_height);
+NK_LIB void nk_textedit_key(struct nk_text_edit *state, enum nk_keys key, int shift_mod, const struct nk_user_font *font, float row_height);
+
+/* window */
+enum nk_window_insert_location {
+    NK_INSERT_BACK, /* inserts window into the back of list (front of screen) */
+    NK_INSERT_FRONT /* inserts window into the front of list (back of screen) */
+};
+NK_LIB void *nk_create_window(struct nk_context *ctx);
+NK_LIB void nk_remove_window(struct nk_context*, struct nk_window*);
+NK_LIB void nk_free_window(struct nk_context *ctx, struct nk_window *win);
+NK_LIB struct nk_window *nk_find_window(struct nk_context *ctx, nk_hash hash, const char *name);
+NK_LIB void nk_insert_window(struct nk_context *ctx, struct nk_window *win, enum nk_window_insert_location loc);
+
+/* pool */
+NK_LIB void nk_pool_init(struct nk_pool *pool, struct nk_allocator *alloc, unsigned int capacity);
+NK_LIB void nk_pool_free(struct nk_pool *pool);
+NK_LIB void nk_pool_init_fixed(struct nk_pool *pool, void *memory, nk_size size);
+NK_LIB struct nk_page_element *nk_pool_alloc(struct nk_pool *pool);
+
+/* page-element */
+NK_LIB struct nk_page_element* nk_create_page_element(struct nk_context *ctx);
+NK_LIB void nk_link_page_element_into_freelist(struct nk_context *ctx, struct nk_page_element *elem);
+NK_LIB void nk_free_page_element(struct nk_context *ctx, struct nk_page_element *elem);
+
+/* table */
+NK_LIB struct nk_table* nk_create_table(struct nk_context *ctx);
+NK_LIB void nk_remove_table(struct nk_window *win, struct nk_table *tbl);
+NK_LIB void nk_free_table(struct nk_context *ctx, struct nk_table *tbl);
+NK_LIB void nk_push_table(struct nk_window *win, struct nk_table *tbl);
+NK_LIB nk_uint *nk_add_value(struct nk_context *ctx, struct nk_window *win, nk_hash name, nk_uint value);
+NK_LIB nk_uint *nk_find_value(struct nk_window *win, nk_hash name);
+
+/* panel */
+NK_LIB void *nk_create_panel(struct nk_context *ctx);
+NK_LIB void nk_free_panel(struct nk_context*, struct nk_panel *pan);
+NK_LIB int nk_panel_has_header(nk_flags flags, const char *title);
+NK_LIB struct nk_vec2 nk_panel_get_padding(const struct nk_style *style, enum nk_panel_type type);
+NK_LIB float nk_panel_get_border(const struct nk_style *style, nk_flags flags, enum nk_panel_type type);
+NK_LIB struct nk_color nk_panel_get_border_color(const struct nk_style *style, enum nk_panel_type type);
+NK_LIB int nk_panel_is_sub(enum nk_panel_type type);
+NK_LIB int nk_panel_is_nonblock(enum nk_panel_type type);
+NK_LIB int nk_panel_begin(struct nk_context *ctx, const char *title, enum nk_panel_type panel_type);
+NK_LIB void nk_panel_end(struct nk_context *ctx);
+
+/* layout */
+NK_LIB float nk_layout_row_calculate_usable_space(const struct nk_style *style, enum nk_panel_type type, float total_space, int columns);
+NK_LIB void nk_panel_layout(const struct nk_context *ctx, struct nk_window *win, float height, int cols);
+NK_LIB void nk_row_layout(struct nk_context *ctx, enum nk_layout_format fmt, float height, int cols, int width);
+NK_LIB void nk_panel_alloc_row(const struct nk_context *ctx, struct nk_window *win);
+NK_LIB void nk_layout_widget_space(struct nk_rect *bounds, const struct nk_context *ctx, struct nk_window *win, int modify);
+NK_LIB void nk_panel_alloc_space(struct nk_rect *bounds, const struct nk_context *ctx);
+NK_LIB void nk_layout_peek(struct nk_rect *bounds, struct nk_context *ctx);
+
+/* popup */
+NK_LIB int nk_nonblock_begin(struct nk_context *ctx, nk_flags flags, struct nk_rect body, struct nk_rect header, enum nk_panel_type panel_type);
+
+/* text */
+struct nk_text {
+    struct nk_vec2 padding;
+    struct nk_color background;
+    struct nk_color text;
+};
+NK_LIB void nk_widget_text(struct nk_command_buffer *o, struct nk_rect b, const char *string, int len, const struct nk_text *t, nk_flags a, const struct nk_user_font *f);
+NK_LIB void nk_widget_text_wrap(struct nk_command_buffer *o, struct nk_rect b, const char *string, int len, const struct nk_text *t, const struct nk_user_font *f);
+
+/* button */
+NK_LIB int nk_button_behavior(nk_flags *state, struct nk_rect r, const struct nk_input *i, enum nk_button_behavior behavior);
+NK_LIB const struct nk_style_item* nk_draw_button(struct nk_command_buffer *out, const struct nk_rect *bounds, nk_flags state, const struct nk_style_button *style);
+NK_LIB int nk_do_button(nk_flags *state, struct nk_command_buffer *out, struct nk_rect r, const struct nk_style_button *style, const struct nk_input *in, enum nk_button_behavior behavior, struct nk_rect *content);
+NK_LIB void nk_draw_button_text(struct nk_command_buffer *out, const struct nk_rect *bounds, const struct nk_rect *content, nk_flags state, const struct nk_style_button *style, const char *txt, int len, nk_flags text_alignment, const struct nk_user_font *font);
+NK_LIB int nk_do_button_text(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, const char *string, int len, nk_flags align, enum nk_button_behavior behavior, const struct nk_style_button *style, const struct nk_input *in, const struct nk_user_font *font);
+NK_LIB void nk_draw_button_symbol(struct nk_command_buffer *out, const struct nk_rect *bounds, const struct nk_rect *content, nk_flags state, const struct nk_style_button *style, enum nk_symbol_type type, const struct nk_user_font *font);
+NK_LIB int nk_do_button_symbol(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, enum nk_symbol_type symbol, enum nk_button_behavior behavior, const struct nk_style_button *style, const struct nk_input *in, const struct nk_user_font *font);
+NK_LIB void nk_draw_button_image(struct nk_command_buffer *out, const struct nk_rect *bounds, const struct nk_rect *content, nk_flags state, const struct nk_style_button *style, const struct nk_image *img);
+NK_LIB int nk_do_button_image(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, struct nk_image img, enum nk_button_behavior b, const struct nk_style_button *style, const struct nk_input *in);
+NK_LIB void nk_draw_button_text_symbol(struct nk_command_buffer *out, const struct nk_rect *bounds, const struct nk_rect *label, const struct nk_rect *symbol, nk_flags state, const struct nk_style_button *style, const char *str, int len, enum nk_symbol_type type, const struct nk_user_font *font);
+NK_LIB int nk_do_button_text_symbol(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, enum nk_symbol_type symbol, const char *str, int len, nk_flags align, enum nk_button_behavior behavior, const struct nk_style_button *style, const struct nk_user_font *font, const struct nk_input *in);
+NK_LIB void nk_draw_button_text_image(struct nk_command_buffer *out, const struct nk_rect *bounds, const struct nk_rect *label, const struct nk_rect *image, nk_flags state, const struct nk_style_button *style, const char *str, int len, const struct nk_user_font *font, const struct nk_image *img);
+NK_LIB int nk_do_button_text_image(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, struct nk_image img, const char* str, int len, nk_flags align, enum nk_button_behavior behavior, const struct nk_style_button *style, const struct nk_user_font *font, const struct nk_input *in);
+
+/* toggle */
+enum nk_toggle_type {
+    NK_TOGGLE_CHECK,
+    NK_TOGGLE_OPTION
+};
+NK_LIB int nk_toggle_behavior(const struct nk_input *in, struct nk_rect select, nk_flags *state, int active);
+NK_LIB void nk_draw_checkbox(struct nk_command_buffer *out, nk_flags state, const struct nk_style_toggle *style, int active, const struct nk_rect *label, const struct nk_rect *selector, const struct nk_rect *cursors, const char *string, int len, const struct nk_user_font *font);
+NK_LIB void nk_draw_option(struct nk_command_buffer *out, nk_flags state, const struct nk_style_toggle *style, int active, const struct nk_rect *label, const struct nk_rect *selector, const struct nk_rect *cursors, const char *string, int len, const struct nk_user_font *font);
+NK_LIB int nk_do_toggle(nk_flags *state, struct nk_command_buffer *out, struct nk_rect r, int *active, const char *str, int len, enum nk_toggle_type type, const struct nk_style_toggle *style, const struct nk_input *in, const struct nk_user_font *font);
+
+/* progress */
+NK_LIB nk_size nk_progress_behavior(nk_flags *state, struct nk_input *in, struct nk_rect r, struct nk_rect cursor, nk_size max, nk_size value, int modifiable);
+NK_LIB void nk_draw_progress(struct nk_command_buffer *out, nk_flags state, const struct nk_style_progress *style, const struct nk_rect *bounds, const struct nk_rect *scursor, nk_size value, nk_size max);
+NK_LIB nk_size nk_do_progress(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, nk_size value, nk_size max, int modifiable, const struct nk_style_progress *style, struct nk_input *in);
+
+/* slider */
+NK_LIB float nk_slider_behavior(nk_flags *state, struct nk_rect *logical_cursor, struct nk_rect *visual_cursor, struct nk_input *in, struct nk_rect bounds, float slider_min, float slider_max, float slider_value, float slider_step, float slider_steps);
+NK_LIB void nk_draw_slider(struct nk_command_buffer *out, nk_flags state, const struct nk_style_slider *style, const struct nk_rect *bounds, const struct nk_rect *visual_cursor, float min, float value, float max);
+NK_LIB float nk_do_slider(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, float min, float val, float max, float step, const struct nk_style_slider *style, struct nk_input *in, const struct nk_user_font *font);
+
+/* scrollbar */
+NK_LIB float nk_scrollbar_behavior(nk_flags *state, struct nk_input *in, int has_scrolling, const struct nk_rect *scroll, const struct nk_rect *cursor, const struct nk_rect *empty0, const struct nk_rect *empty1, float scroll_offset, float target, float scroll_step, enum nk_orientation o);
+NK_LIB void nk_draw_scrollbar(struct nk_command_buffer *out, nk_flags state, const struct nk_style_scrollbar *style, const struct nk_rect *bounds, const struct nk_rect *scroll);
+NK_LIB float nk_do_scrollbarv(nk_flags *state, struct nk_command_buffer *out, struct nk_rect scroll, int has_scrolling, float offset, float target, float step, float button_pixel_inc, const struct nk_style_scrollbar *style, struct nk_input *in, const struct nk_user_font *font);
+NK_LIB float nk_do_scrollbarh(nk_flags *state, struct nk_command_buffer *out, struct nk_rect scroll, int has_scrolling, float offset, float target, float step, float button_pixel_inc, const struct nk_style_scrollbar *style, struct nk_input *in, const struct nk_user_font *font);
+
+/* selectable */
+NK_LIB void nk_draw_selectable(struct nk_command_buffer *out, nk_flags state, const struct nk_style_selectable *style, int active, const struct nk_rect *bounds, const struct nk_rect *icon, const struct nk_image *img, enum nk_symbol_type sym, const char *string, int len, nk_flags align, const struct nk_user_font *font);
+NK_LIB int nk_do_selectable(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, const char *str, int len, nk_flags align, int *value, const struct nk_style_selectable *style, const struct nk_input *in, const struct nk_user_font *font);
+NK_LIB int nk_do_selectable_image(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, const char *str, int len, nk_flags align, int *value, const struct nk_image *img, const struct nk_style_selectable *style, const struct nk_input *in, const struct nk_user_font *font);
+
+/* edit */
+NK_LIB void nk_edit_draw_text(struct nk_command_buffer *out, const struct nk_style_edit *style, float pos_x, float pos_y, float x_offset, const char *text, int byte_len, float row_height, const struct nk_user_font *font, struct nk_color background, struct nk_color foreground, int is_selected);
+NK_LIB nk_flags nk_do_edit(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, nk_flags flags, nk_plugin_filter filter, struct nk_text_edit *edit, const struct nk_style_edit *style, struct nk_input *in, const struct nk_user_font *font);
+
+/* color-picker */
+NK_LIB int nk_color_picker_behavior(nk_flags *state, const struct nk_rect *bounds, const struct nk_rect *matrix, const struct nk_rect *hue_bar, const struct nk_rect *alpha_bar, struct nk_colorf *color, const struct nk_input *in);
+NK_LIB void nk_draw_color_picker(struct nk_command_buffer *o, const struct nk_rect *matrix, const struct nk_rect *hue_bar, const struct nk_rect *alpha_bar, struct nk_colorf col);
+NK_LIB int nk_do_color_picker(nk_flags *state, struct nk_command_buffer *out, struct nk_colorf *col, enum nk_color_format fmt, struct nk_rect bounds, struct nk_vec2 padding, const struct nk_input *in, const struct nk_user_font *font);
+
+/* property */
+enum nk_property_status {
+    NK_PROPERTY_DEFAULT,
+    NK_PROPERTY_EDIT,
+    NK_PROPERTY_DRAG
+};
+enum nk_property_filter {
+    NK_FILTER_INT,
+    NK_FILTER_FLOAT
+};
+enum nk_property_kind {
+    NK_PROPERTY_INT,
+    NK_PROPERTY_FLOAT,
+    NK_PROPERTY_DOUBLE
+};
+union nk_property {
+    int i;
+    float f;
+    double d;
+};
+struct nk_property_variant {
+    enum nk_property_kind kind;
+    union nk_property value;
+    union nk_property min_value;
+    union nk_property max_value;
+    union nk_property step;
+};
+NK_LIB struct nk_property_variant nk_property_variant_int(int value, int min_value, int max_value, int step);
+NK_LIB struct nk_property_variant nk_property_variant_float(float value, float min_value, float max_value, float step);
+NK_LIB struct nk_property_variant nk_property_variant_double(double value, double min_value, double max_value, double step);
+
+NK_LIB void nk_drag_behavior(nk_flags *state, const struct nk_input *in, struct nk_rect drag, struct nk_property_variant *variant, float inc_per_pixel);
+NK_LIB void nk_property_behavior(nk_flags *ws, const struct nk_input *in, struct nk_rect property,  struct nk_rect label, struct nk_rect edit, struct nk_rect empty, int *state, struct nk_property_variant *variant, float inc_per_pixel);
+NK_LIB void nk_draw_property(struct nk_command_buffer *out, const struct nk_style_property *style, const struct nk_rect *bounds, const struct nk_rect *label, nk_flags state, const char *name, int len, const struct nk_user_font *font);
+NK_LIB void nk_do_property(nk_flags *ws, struct nk_command_buffer *out, struct nk_rect property, const char *name, struct nk_property_variant *variant, float inc_per_pixel, char *buffer, int *len, int *state, int *cursor, int *select_begin, int *select_end, const struct nk_style_property *style, enum nk_property_filter filter, struct nk_input *in, const struct nk_user_font *font, struct nk_text_edit *text_edit, enum nk_button_behavior behavior);
+NK_LIB void nk_property(struct nk_context *ctx, const char *name, struct nk_property_variant *variant, float inc_per_pixel, const enum nk_property_filter filter);
+
+#endif
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              MATH
+ *
+ * ===============================================================*/
+/*  Since nuklear is supposed to work on all systems providing floating point
+    math without any dependencies I also had to implement my own math functions
+    for sqrt, sin and cos. Since the actual highly accurate implementations for
+    the standard library functions are quite complex and I do not need high
+    precision for my use cases I use approximations.
+
+    Sqrt
+    ----
+    For square root nuklear uses the famous fast inverse square root:
+    https://en.wikipedia.org/wiki/Fast_inverse_square_root with
+    slightly tweaked magic constant. While on today's hardware it is
+    probably not faster it is still fast and accurate enough for
+    nuklear's use cases. IMPORTANT: this requires float format IEEE 754
+
+    Sine/Cosine
+    -----------
+    All constants inside both function are generated Remez's minimax
+    approximations for value range 0...2*PI. The reason why I decided to
+    approximate exactly that range is that nuklear only needs sine and
+    cosine to generate circles which only requires that exact range.
+    In addition I used Remez instead of Taylor for additional precision:
+    www.lolengine.net/blog/2011/12/21/better-function-approximations.
+
+    The tool I used to generate constants for both sine and cosine
+    (it can actually approximate a lot more functions) can be
+    found here: www.lolengine.net/wiki/oss/lolremez
+*/
+NK_LIB float
+nk_inv_sqrt(float n)
+{
+    float x2;
+    const float threehalfs = 1.5f;
+    union {nk_uint i; float f;} conv = {0};
+    conv.f = n;
+    x2 = n * 0.5f;
+    conv.i = 0x5f375A84 - (conv.i >> 1);
+    conv.f = conv.f * (threehalfs - (x2 * conv.f * conv.f));
+    return conv.f;
+}
+NK_LIB float
+nk_sqrt(float x)
+{
+    return x * nk_inv_sqrt(x);
+}
+NK_LIB float
+nk_sin(float x)
+{
+    NK_STORAGE const float a0 = +1.91059300966915117e-31f;
+    NK_STORAGE const float a1 = +1.00086760103908896f;
+    NK_STORAGE const float a2 = -1.21276126894734565e-2f;
+    NK_STORAGE const float a3 = -1.38078780785773762e-1f;
+    NK_STORAGE const float a4 = -2.67353392911981221e-2f;
+    NK_STORAGE const float a5 = +2.08026600266304389e-2f;
+    NK_STORAGE const float a6 = -3.03996055049204407e-3f;
+    NK_STORAGE const float a7 = +1.38235642404333740e-4f;
+    return a0 + x*(a1 + x*(a2 + x*(a3 + x*(a4 + x*(a5 + x*(a6 + x*a7))))));
+}
+NK_LIB float
+nk_cos(float x)
+{
+    /* New implementation. Also generated using lolremez. */
+    /* Old version significantly deviated from expected results. */
+    NK_STORAGE const float a0 = 9.9995999154986614e-1f;
+    NK_STORAGE const float a1 = 1.2548995793001028e-3f;
+    NK_STORAGE const float a2 = -5.0648546280678015e-1f;
+    NK_STORAGE const float a3 = 1.2942246466519995e-2f;
+    NK_STORAGE const float a4 = 2.8668384702547972e-2f;
+    NK_STORAGE const float a5 = 7.3726485210586547e-3f;
+    NK_STORAGE const float a6 = -3.8510875386947414e-3f;
+    NK_STORAGE const float a7 = 4.7196604604366623e-4f;
+    NK_STORAGE const float a8 = -1.8776444013090451e-5f;
+    return a0 + x*(a1 + x*(a2 + x*(a3 + x*(a4 + x*(a5 + x*(a6 + x*(a7 + x*a8)))))));
+}
+NK_LIB nk_uint
+nk_round_up_pow2(nk_uint v)
+{
+    v--;
+    v |= v >> 1;
+    v |= v >> 2;
+    v |= v >> 4;
+    v |= v >> 8;
+    v |= v >> 16;
+    v++;
+    return v;
+}
+NK_LIB double
+nk_pow(double x, int n)
+{
+    /*  check the sign of n */
+    double r = 1;
+    int plus = n >= 0;
+    n = (plus) ? n : -n;
+    while (n > 0) {
+        if ((n & 1) == 1)
+            r *= x;
+        n /= 2;
+        x *= x;
+    }
+    return plus ? r : 1.0 / r;
+}
+NK_LIB int
+nk_ifloord(double x)
+{
+    x = (double)((int)x - ((x < 0.0) ? 1 : 0));
+    return (int)x;
+}
+NK_LIB int
+nk_ifloorf(float x)
+{
+    x = (float)((int)x - ((x < 0.0f) ? 1 : 0));
+    return (int)x;
+}
+NK_LIB int
+nk_iceilf(float x)
+{
+    if (x >= 0) {
+        int i = (int)x;
+        return (x > i) ? i+1: i;
+    } else {
+        int t = (int)x;
+        float r = x - (float)t;
+        return (r > 0.0f) ? t+1: t;
+    }
+}
+NK_LIB int
+nk_log10(double n)
+{
+    int neg;
+    int ret;
+    int exp = 0;
+
+    neg = (n < 0) ? 1 : 0;
+    ret = (neg) ? (int)-n : (int)n;
+    while ((ret / 10) > 0) {
+        ret /= 10;
+        exp++;
+    }
+    if (neg) exp = -exp;
+    return exp;
+}
+NK_API struct nk_rect
+nk_get_null_rect(void)
+{
+    return nk_null_rect;
+}
+NK_API struct nk_rect
+nk_rect(float x, float y, float w, float h)
+{
+    struct nk_rect r;
+    r.x = x; r.y = y;
+    r.w = w; r.h = h;
+    return r;
+}
+NK_API struct nk_rect
+nk_recti(int x, int y, int w, int h)
+{
+    struct nk_rect r;
+    r.x = (float)x;
+    r.y = (float)y;
+    r.w = (float)w;
+    r.h = (float)h;
+    return r;
+}
+NK_API struct nk_rect
+nk_recta(struct nk_vec2 pos, struct nk_vec2 size)
+{
+    return nk_rect(pos.x, pos.y, size.x, size.y);
+}
+NK_API struct nk_rect
+nk_rectv(const float *r)
+{
+    return nk_rect(r[0], r[1], r[2], r[3]);
+}
+NK_API struct nk_rect
+nk_rectiv(const int *r)
+{
+    return nk_recti(r[0], r[1], r[2], r[3]);
+}
+NK_API struct nk_vec2
+nk_rect_pos(struct nk_rect r)
+{
+    struct nk_vec2 ret;
+    ret.x = r.x; ret.y = r.y;
+    return ret;
+}
+NK_API struct nk_vec2
+nk_rect_size(struct nk_rect r)
+{
+    struct nk_vec2 ret;
+    ret.x = r.w; ret.y = r.h;
+    return ret;
+}
+NK_LIB struct nk_rect
+nk_shrink_rect(struct nk_rect r, float amount)
+{
+    struct nk_rect res;
+    r.w = NK_MAX(r.w, 2 * amount);
+    r.h = NK_MAX(r.h, 2 * amount);
+    res.x = r.x + amount;
+    res.y = r.y + amount;
+    res.w = r.w - 2 * amount;
+    res.h = r.h - 2 * amount;
+    return res;
+}
+NK_LIB struct nk_rect
+nk_pad_rect(struct nk_rect r, struct nk_vec2 pad)
+{
+    r.w = NK_MAX(r.w, 2 * pad.x);
+    r.h = NK_MAX(r.h, 2 * pad.y);
+    r.x += pad.x; r.y += pad.y;
+    r.w -= 2 * pad.x;
+    r.h -= 2 * pad.y;
+    return r;
+}
+NK_API struct nk_vec2
+nk_vec2(float x, float y)
+{
+    struct nk_vec2 ret;
+    ret.x = x; ret.y = y;
+    return ret;
+}
+NK_API struct nk_vec2
+nk_vec2i(int x, int y)
+{
+    struct nk_vec2 ret;
+    ret.x = (float)x;
+    ret.y = (float)y;
+    return ret;
+}
+NK_API struct nk_vec2
+nk_vec2v(const float *v)
+{
+    return nk_vec2(v[0], v[1]);
+}
+NK_API struct nk_vec2
+nk_vec2iv(const int *v)
+{
+    return nk_vec2i(v[0], v[1]);
+}
+NK_LIB void
+nk_unify(struct nk_rect *clip, const struct nk_rect *a, float x0, float y0,
+    float x1, float y1)
+{
+    NK_ASSERT(a);
+    NK_ASSERT(clip);
+    clip->x = NK_MAX(a->x, x0);
+    clip->y = NK_MAX(a->y, y0);
+    clip->w = NK_MIN(a->x + a->w, x1) - clip->x;
+    clip->h = NK_MIN(a->y + a->h, y1) - clip->y;
+    clip->w = NK_MAX(0, clip->w);
+    clip->h = NK_MAX(0, clip->h);
+}
+
+NK_API void
+nk_triangle_from_direction(struct nk_vec2 *result, struct nk_rect r,
+    float pad_x, float pad_y, enum nk_heading direction)
+{
+    float w_half, h_half;
+    NK_ASSERT(result);
+
+    r.w = NK_MAX(2 * pad_x, r.w);
+    r.h = NK_MAX(2 * pad_y, r.h);
+    r.w = r.w - 2 * pad_x;
+    r.h = r.h - 2 * pad_y;
+
+    r.x = r.x + pad_x;
+    r.y = r.y + pad_y;
+
+    w_half = r.w / 2.0f;
+    h_half = r.h / 2.0f;
+
+    if (direction == NK_UP) {
+        result[0] = nk_vec2(r.x + w_half, r.y);
+        result[1] = nk_vec2(r.x + r.w, r.y + r.h);
+        result[2] = nk_vec2(r.x, r.y + r.h);
+    } else if (direction == NK_RIGHT) {
+        result[0] = nk_vec2(r.x, r.y);
+        result[1] = nk_vec2(r.x + r.w, r.y + h_half);
+        result[2] = nk_vec2(r.x, r.y + r.h);
+    } else if (direction == NK_DOWN) {
+        result[0] = nk_vec2(r.x, r.y);
+        result[1] = nk_vec2(r.x + r.w, r.y);
+        result[2] = nk_vec2(r.x + w_half, r.y + r.h);
+    } else {
+        result[0] = nk_vec2(r.x, r.y + h_half);
+        result[1] = nk_vec2(r.x + r.w, r.y);
+        result[2] = nk_vec2(r.x + r.w, r.y + r.h);
+    }
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              UTIL
+ *
+ * ===============================================================*/
+NK_INTERN int nk_str_match_here(const char *regexp, const char *text);
+NK_INTERN int nk_str_match_star(int c, const char *regexp, const char *text);
+NK_LIB int nk_is_lower(int c) {return (c >= 'a' && c <= 'z') || (c >= 0xE0 && c <= 0xFF);}
+NK_LIB int nk_is_upper(int c){return (c >= 'A' && c <= 'Z') || (c >= 0xC0 && c <= 0xDF);}
+NK_LIB int nk_to_upper(int c) {return (c >= 'a' && c <= 'z') ? (c - ('a' - 'A')) : c;}
+NK_LIB int nk_to_lower(int c) {return (c >= 'A' && c <= 'Z') ? (c - ('a' + 'A')) : c;}
+
+NK_LIB void*
+nk_memcopy(void *dst0, const void *src0, nk_size length)
+{
+    nk_ptr t;
+    char *dst = (char*)dst0;
+    const char *src = (const char*)src0;
+    if (length == 0 || dst == src)
+        goto done;
+
+    #define nk_word int
+    #define nk_wsize sizeof(nk_word)
+    #define nk_wmask (nk_wsize-1)
+    #define NK_TLOOP(s) if (t) NK_TLOOP1(s)
+    #define NK_TLOOP1(s) do { s; } while (--t)
+
+    if (dst < src) {
+        t = (nk_ptr)src; /* only need low bits */
+        if ((t | (nk_ptr)dst) & nk_wmask) {
+            if ((t ^ (nk_ptr)dst) & nk_wmask || length < nk_wsize)
+                t = length;
+            else
+                t = nk_wsize - (t & nk_wmask);
+            length -= t;
+            NK_TLOOP1(*dst++ = *src++);
+        }
+        t = length / nk_wsize;
+        NK_TLOOP(*(nk_word*)(void*)dst = *(const nk_word*)(const void*)src;
+            src += nk_wsize; dst += nk_wsize);
+        t = length & nk_wmask;
+        NK_TLOOP(*dst++ = *src++);
+    } else {
+        src += length;
+        dst += length;
+        t = (nk_ptr)src;
+        if ((t | (nk_ptr)dst) & nk_wmask) {
+            if ((t ^ (nk_ptr)dst) & nk_wmask || length <= nk_wsize)
+                t = length;
+            else
+                t &= nk_wmask;
+            length -= t;
+            NK_TLOOP1(*--dst = *--src);
+        }
+        t = length / nk_wsize;
+        NK_TLOOP(src -= nk_wsize; dst -= nk_wsize;
+            *(nk_word*)(void*)dst = *(const nk_word*)(const void*)src);
+        t = length & nk_wmask;
+        NK_TLOOP(*--dst = *--src);
+    }
+    #undef nk_word
+    #undef nk_wsize
+    #undef nk_wmask
+    #undef NK_TLOOP
+    #undef NK_TLOOP1
+done:
+    return (dst0);
+}
+NK_LIB void
+nk_memset(void *ptr, int c0, nk_size size)
+{
+    #define nk_word unsigned
+    #define nk_wsize sizeof(nk_word)
+    #define nk_wmask (nk_wsize - 1)
+    nk_byte *dst = (nk_byte*)ptr;
+    unsigned c = 0;
+    nk_size t = 0;
+
+    if ((c = (nk_byte)c0) != 0) {
+        c = (c << 8) | c; /* at least 16-bits  */
+        if (sizeof(unsigned int) > 2)
+            c = (c << 16) | c; /* at least 32-bits*/
+    }
+
+    /* too small of a word count */
+    dst = (nk_byte*)ptr;
+    if (size < 3 * nk_wsize) {
+        while (size--) *dst++ = (nk_byte)c0;
+        return;
+    }
+
+    /* align destination */
+    if ((t = NK_PTR_TO_UINT(dst) & nk_wmask) != 0) {
+        t = nk_wsize -t;
+        size -= t;
+        do {
+            *dst++ = (nk_byte)c0;
+        } while (--t != 0);
+    }
+
+    /* fill word */
+    t = size / nk_wsize;
+    do {
+        *(nk_word*)((void*)dst) = c;
+        dst += nk_wsize;
+    } while (--t != 0);
+
+    /* fill trailing bytes */
+    t = (size & nk_wmask);
+    if (t != 0) {
+        do {
+            *dst++ = (nk_byte)c0;
+        } while (--t != 0);
+    }
+
+    #undef nk_word
+    #undef nk_wsize
+    #undef nk_wmask
+}
+NK_LIB void
+nk_zero(void *ptr, nk_size size)
+{
+    NK_ASSERT(ptr);
+    NK_MEMSET(ptr, 0, size);
+}
+NK_API int
+nk_strlen(const char *str)
+{
+    int siz = 0;
+    NK_ASSERT(str);
+    while (str && *str++ != '\0') siz++;
+    return siz;
+}
+NK_API int
+nk_strtoi(const char *str, const char **endptr)
+{
+    int neg = 1;
+    const char *p = str;
+    int value = 0;
+
+    NK_ASSERT(str);
+    if (!str) return 0;
+
+    /* skip whitespace */
+    while (*p == ' ') p++;
+    if (*p == '-') {
+        neg = -1;
+        p++;
+    }
+    while (*p && *p >= '0' && *p <= '9') {
+        value = value * 10 + (int) (*p - '0');
+        p++;
+    }
+    if (endptr)
+        *endptr = p;
+    return neg*value;
+}
+NK_API double
+nk_strtod(const char *str, const char **endptr)
+{
+    double m;
+    double neg = 1.0;
+    const char *p = str;
+    double value = 0;
+    double number = 0;
+
+    NK_ASSERT(str);
+    if (!str) return 0;
+
+    /* skip whitespace */
+    while (*p == ' ') p++;
+    if (*p == '-') {
+        neg = -1.0;
+        p++;
+    }
+
+    while (*p && *p != '.' && *p != 'e') {
+        value = value * 10.0 + (double) (*p - '0');
+        p++;
+    }
+
+    if (*p == '.') {
+        p++;
+        for(m = 0.1; *p && *p != 'e'; p++ ) {
+            value = value + (double) (*p - '0') * m;
+            m *= 0.1;
+        }
+    }
+    if (*p == 'e') {
+        int i, pow, div;
+        p++;
+        if (*p == '-') {
+            div = nk_true;
+            p++;
+        } else if (*p == '+') {
+            div = nk_false;
+            p++;
+        } else div = nk_false;
+
+        for (pow = 0; *p; p++)
+            pow = pow * 10 + (int) (*p - '0');
+
+        for (m = 1.0, i = 0; i < pow; i++)
+            m *= 10.0;
+
+        if (div)
+            value /= m;
+        else value *= m;
+    }
+    number = value * neg;
+    if (endptr)
+        *endptr = p;
+    return number;
+}
+NK_API float
+nk_strtof(const char *str, const char **endptr)
+{
+    float float_value;
+    double double_value;
+    double_value = NK_STRTOD(str, endptr);
+    float_value = (float)double_value;
+    return float_value;
+}
+NK_API int
+nk_stricmp(const char *s1, const char *s2)
+{
+    nk_int c1,c2,d;
+    do {
+        c1 = *s1++;
+        c2 = *s2++;
+        d = c1 - c2;
+        while (d) {
+            if (c1 <= 'Z' && c1 >= 'A') {
+                d += ('a' - 'A');
+                if (!d) break;
+            }
+            if (c2 <= 'Z' && c2 >= 'A') {
+                d -= ('a' - 'A');
+                if (!d) break;
+            }
+            return ((d >= 0) << 1) - 1;
+        }
+    } while (c1);
+    return 0;
+}
+NK_API int
+nk_stricmpn(const char *s1, const char *s2, int n)
+{
+    int c1,c2,d;
+    NK_ASSERT(n >= 0);
+    do {
+        c1 = *s1++;
+        c2 = *s2++;
+        if (!n--) return 0;
+
+        d = c1 - c2;
+        while (d) {
+            if (c1 <= 'Z' && c1 >= 'A') {
+                d += ('a' - 'A');
+                if (!d) break;
+            }
+            if (c2 <= 'Z' && c2 >= 'A') {
+                d -= ('a' - 'A');
+                if (!d) break;
+            }
+            return ((d >= 0) << 1) - 1;
+        }
+    } while (c1);
+    return 0;
+}
+NK_INTERN int
+nk_str_match_here(const char *regexp, const char *text)
+{
+    if (regexp[0] == '\0')
+        return 1;
+    if (regexp[1] == '*')
+        return nk_str_match_star(regexp[0], regexp+2, text);
+    if (regexp[0] == '$' && regexp[1] == '\0')
+        return *text == '\0';
+    if (*text!='\0' && (regexp[0]=='.' || regexp[0]==*text))
+        return nk_str_match_here(regexp+1, text+1);
+    return 0;
+}
+NK_INTERN int
+nk_str_match_star(int c, const char *regexp, const char *text)
+{
+    do {/* a '* matches zero or more instances */
+        if (nk_str_match_here(regexp, text))
+            return 1;
+    } while (*text != '\0' && (*text++ == c || c == '.'));
+    return 0;
+}
+NK_API int
+nk_strfilter(const char *text, const char *regexp)
+{
+    /*
+    c    matches any literal character c
+    .    matches any single character
+    ^    matches the beginning of the input string
+    $    matches the end of the input string
+    *    matches zero or more occurrences of the previous character*/
+    if (regexp[0] == '^')
+        return nk_str_match_here(regexp+1, text);
+    do {    /* must look even if string is empty */
+        if (nk_str_match_here(regexp, text))
+            return 1;
+    } while (*text++ != '\0');
+    return 0;
+}
+NK_API int
+nk_strmatch_fuzzy_text(const char *str, int str_len,
+    const char *pattern, int *out_score)
+{
+    /* Returns true if each character in pattern is found sequentially within str
+     * if found then out_score is also set. Score value has no intrinsic meaning.
+     * Range varies with pattern. Can only compare scores with same search pattern. */
+
+    /* bonus for adjacent matches */
+    #define NK_ADJACENCY_BONUS 5
+    /* bonus if match occurs after a separator */
+    #define NK_SEPARATOR_BONUS 10
+    /* bonus if match is uppercase and prev is lower */
+    #define NK_CAMEL_BONUS 10
+    /* penalty applied for every letter in str before the first match */
+    #define NK_LEADING_LETTER_PENALTY (-3)
+    /* maximum penalty for leading letters */
+    #define NK_MAX_LEADING_LETTER_PENALTY (-9)
+    /* penalty for every letter that doesn't matter */
+    #define NK_UNMATCHED_LETTER_PENALTY (-1)
+
+    /* loop variables */
+    int score = 0;
+    char const * pattern_iter = pattern;
+    int str_iter = 0;
+    int prev_matched = nk_false;
+    int prev_lower = nk_false;
+    /* true so if first letter match gets separator bonus*/
+    int prev_separator = nk_true;
+
+    /* use "best" matched letter if multiple string letters match the pattern */
+    char const * best_letter = 0;
+    int best_letter_score = 0;
+
+    /* loop over strings */
+    NK_ASSERT(str);
+    NK_ASSERT(pattern);
+    if (!str || !str_len || !pattern) return 0;
+    while (str_iter < str_len)
+    {
+        const char pattern_letter = *pattern_iter;
+        const char str_letter = str[str_iter];
+
+        int next_match = *pattern_iter != '\0' &&
+            nk_to_lower(pattern_letter) == nk_to_lower(str_letter);
+        int rematch = best_letter && nk_to_upper(*best_letter) == nk_to_upper(str_letter);
+
+        int advanced = next_match && best_letter;
+        int pattern_repeat = best_letter && *pattern_iter != '\0';
+        pattern_repeat = pattern_repeat &&
+            nk_to_lower(*best_letter) == nk_to_lower(pattern_letter);
+
+        if (advanced || pattern_repeat) {
+            score += best_letter_score;
+            best_letter = 0;
+            best_letter_score = 0;
+        }
+
+        if (next_match || rematch)
+        {
+            int new_score = 0;
+            /* Apply penalty for each letter before the first pattern match */
+            if (pattern_iter == pattern) {
+                int count = (int)(&str[str_iter] - str);
+                int penalty = NK_LEADING_LETTER_PENALTY * count;
+                if (penalty < NK_MAX_LEADING_LETTER_PENALTY)
+                    penalty = NK_MAX_LEADING_LETTER_PENALTY;
+
+                score += penalty;
+            }
+
+            /* apply bonus for consecutive bonuses */
+            if (prev_matched)
+                new_score += NK_ADJACENCY_BONUS;
+
+            /* apply bonus for matches after a separator */
+            if (prev_separator)
+                new_score += NK_SEPARATOR_BONUS;
+
+            /* apply bonus across camel case boundaries */
+            if (prev_lower && nk_is_upper(str_letter))
+                new_score += NK_CAMEL_BONUS;
+
+            /* update pattern iter IFF the next pattern letter was matched */
+            if (next_match)
+                ++pattern_iter;
+
+            /* update best letter in str which may be for a "next" letter or a rematch */
+            if (new_score >= best_letter_score) {
+                /* apply penalty for now skipped letter */
+                if (best_letter != 0)
+                    score += NK_UNMATCHED_LETTER_PENALTY;
+
+                best_letter = &str[str_iter];
+                best_letter_score = new_score;
+            }
+            prev_matched = nk_true;
+        } else {
+            score += NK_UNMATCHED_LETTER_PENALTY;
+            prev_matched = nk_false;
+        }
+
+        /* separators should be more easily defined */
+        prev_lower = nk_is_lower(str_letter) != 0;
+        prev_separator = str_letter == '_' || str_letter == ' ';
+
+        ++str_iter;
+    }
+
+    /* apply score for last match */
+    if (best_letter)
+        score += best_letter_score;
+
+    /* did not match full pattern */
+    if (*pattern_iter != '\0')
+        return nk_false;
+
+    if (out_score)
+        *out_score = score;
+    return nk_true;
+}
+NK_API int
+nk_strmatch_fuzzy_string(char const *str, char const *pattern, int *out_score)
+{
+    return nk_strmatch_fuzzy_text(str, nk_strlen(str), pattern, out_score);
+}
+NK_LIB int
+nk_string_float_limit(char *string, int prec)
+{
+    int dot = 0;
+    char *c = string;
+    while (*c) {
+        if (*c == '.') {
+            dot = 1;
+            c++;
+            continue;
+        }
+        if (dot == (prec+1)) {
+            *c = 0;
+            break;
+        }
+        if (dot > 0) dot++;
+        c++;
+    }
+    return (int)(c - string);
+}
+NK_INTERN void
+nk_strrev_ascii(char *s)
+{
+    int len = nk_strlen(s);
+    int end = len / 2;
+    int i = 0;
+    char t;
+    for (; i < end; ++i) {
+        t = s[i];
+        s[i] = s[len - 1 - i];
+        s[len -1 - i] = t;
+    }
+}
+NK_LIB char*
+nk_itoa(char *s, long n)
+{
+    long i = 0;
+    if (n == 0) {
+        s[i++] = '0';
+        s[i] = 0;
+        return s;
+    }
+    if (n < 0) {
+        s[i++] = '-';
+        n = -n;
+    }
+    while (n > 0) {
+        s[i++] = (char)('0' + (n % 10));
+        n /= 10;
+    }
+    s[i] = 0;
+    if (s[0] == '-')
+        ++s;
+
+    nk_strrev_ascii(s);
+    return s;
+}
+NK_LIB char*
+nk_dtoa(char *s, double n)
+{
+    int useExp = 0;
+    int digit = 0, m = 0, m1 = 0;
+    char *c = s;
+    int neg = 0;
+
+    NK_ASSERT(s);
+    if (!s) return 0;
+
+    if (n == 0.0) {
+        s[0] = '0'; s[1] = '\0';
+        return s;
+    }
+
+    neg = (n < 0);
+    if (neg) n = -n;
+
+    /* calculate magnitude */
+    m = nk_log10(n);
+    useExp = (m >= 14 || (neg && m >= 9) || m <= -9);
+    if (neg) *(c++) = '-';
+
+    /* set up for scientific notation */
+    if (useExp) {
+        if (m < 0)
+           m -= 1;
+        n = n / (double)nk_pow(10.0, m);
+        m1 = m;
+        m = 0;
+    }
+    if (m < 1.0) {
+        m = 0;
+    }
+
+    /* convert the number */
+    while (n > NK_FLOAT_PRECISION || m >= 0) {
+        double weight = nk_pow(10.0, m);
+        if (weight > 0) {
+            double t = (double)n / weight;
+            digit = nk_ifloord(t);
+            n -= ((double)digit * weight);
+            *(c++) = (char)('0' + (char)digit);
+        }
+        if (m == 0 && n > 0)
+            *(c++) = '.';
+        m--;
+    }
+
+    if (useExp) {
+        /* convert the exponent */
+        int i, j;
+        *(c++) = 'e';
+        if (m1 > 0) {
+            *(c++) = '+';
+        } else {
+            *(c++) = '-';
+            m1 = -m1;
+        }
+        m = 0;
+        while (m1 > 0) {
+            *(c++) = (char)('0' + (char)(m1 % 10));
+            m1 /= 10;
+            m++;
+        }
+        c -= m;
+        for (i = 0, j = m-1; i<j; i++, j--) {
+            /* swap without temporary */
+            c[i] ^= c[j];
+            c[j] ^= c[i];
+            c[i] ^= c[j];
+        }
+        c += m;
+    }
+    *(c) = '\0';
+    return s;
+}
+#ifdef NK_INCLUDE_STANDARD_VARARGS
+#ifndef NK_INCLUDE_STANDARD_IO
+NK_INTERN int
+nk_vsnprintf(char *buf, int buf_size, const char *fmt, va_list args)
+{
+    enum nk_arg_type {
+        NK_ARG_TYPE_CHAR,
+        NK_ARG_TYPE_SHORT,
+        NK_ARG_TYPE_DEFAULT,
+        NK_ARG_TYPE_LONG
+    };
+    enum nk_arg_flags {
+        NK_ARG_FLAG_LEFT = 0x01,
+        NK_ARG_FLAG_PLUS = 0x02,
+        NK_ARG_FLAG_SPACE = 0x04,
+        NK_ARG_FLAG_NUM = 0x10,
+        NK_ARG_FLAG_ZERO = 0x20
+    };
+
+    char number_buffer[NK_MAX_NUMBER_BUFFER];
+    enum nk_arg_type arg_type = NK_ARG_TYPE_DEFAULT;
+    int precision = NK_DEFAULT;
+    int width = NK_DEFAULT;
+    nk_flags flag = 0;
+
+    int len = 0;
+    int result = -1;
+    const char *iter = fmt;
+
+    NK_ASSERT(buf);
+    NK_ASSERT(buf_size);
+    if (!buf || !buf_size || !fmt) return 0;
+    for (iter = fmt; *iter && len < buf_size; iter++) {
+        /* copy all non-format characters */
+        while (*iter && (*iter != '%') && (len < buf_size))
+            buf[len++] = *iter++;
+        if (!(*iter) || len >= buf_size) break;
+        iter++;
+
+        /* flag arguments */
+        while (*iter) {
+            if (*iter == '-') flag |= NK_ARG_FLAG_LEFT;
+            else if (*iter == '+') flag |= NK_ARG_FLAG_PLUS;
+            else if (*iter == ' ') flag |= NK_ARG_FLAG_SPACE;
+            else if (*iter == '#') flag |= NK_ARG_FLAG_NUM;
+            else if (*iter == '0') flag |= NK_ARG_FLAG_ZERO;
+            else break;
+            iter++;
+        }
+
+        /* width argument */
+        width = NK_DEFAULT;
+        if (*iter >= '1' && *iter <= '9') {
+            const char *end;
+            width = nk_strtoi(iter, &end);
+            if (end == iter)
+                width = -1;
+            else iter = end;
+        } else if (*iter == '*') {
+            width = va_arg(args, int);
+            iter++;
+        }
+
+        /* precision argument */
+        precision = NK_DEFAULT;
+        if (*iter == '.') {
+            iter++;
+            if (*iter == '*') {
+                precision = va_arg(args, int);
+                iter++;
+            } else {
+                const char *end;
+                precision = nk_strtoi(iter, &end);
+                if (end == iter)
+                    precision = -1;
+                else iter = end;
+            }
+        }
+
+        /* length modifier */
+        if (*iter == 'h') {
+            if (*(iter+1) == 'h') {
+                arg_type = NK_ARG_TYPE_CHAR;
+                iter++;
+            } else arg_type = NK_ARG_TYPE_SHORT;
+            iter++;
+        } else if (*iter == 'l') {
+            arg_type = NK_ARG_TYPE_LONG;
+            iter++;
+        } else arg_type = NK_ARG_TYPE_DEFAULT;
+
+        /* specifier */
+        if (*iter == '%') {
+            NK_ASSERT(arg_type == NK_ARG_TYPE_DEFAULT);
+            NK_ASSERT(precision == NK_DEFAULT);
+            NK_ASSERT(width == NK_DEFAULT);
+            if (len < buf_size)
+                buf[len++] = '%';
+        } else if (*iter == 's') {
+            /* string  */
+            const char *str = va_arg(args, const char*);
+            NK_ASSERT(str != buf && "buffer and argument are not allowed to overlap!");
+            NK_ASSERT(arg_type == NK_ARG_TYPE_DEFAULT);
+            NK_ASSERT(precision == NK_DEFAULT);
+            NK_ASSERT(width == NK_DEFAULT);
+            if (str == buf) return -1;
+            while (str && *str && len < buf_size)
+                buf[len++] = *str++;
+        } else if (*iter == 'n') {
+            /* current length callback */
+            signed int *n = va_arg(args, int*);
+            NK_ASSERT(arg_type == NK_ARG_TYPE_DEFAULT);
+            NK_ASSERT(precision == NK_DEFAULT);
+            NK_ASSERT(width == NK_DEFAULT);
+            if (n) *n = len;
+        } else if (*iter == 'c' || *iter == 'i' || *iter == 'd') {
+            /* signed integer */
+            long value = 0;
+            const char *num_iter;
+            int num_len, num_print, padding;
+            int cur_precision = NK_MAX(precision, 1);
+            int cur_width = NK_MAX(width, 0);
+
+            /* retrieve correct value type */
+            if (arg_type == NK_ARG_TYPE_CHAR)
+                value = (signed char)va_arg(args, int);
+            else if (arg_type == NK_ARG_TYPE_SHORT)
+                value = (signed short)va_arg(args, int);
+            else if (arg_type == NK_ARG_TYPE_LONG)
+                value = va_arg(args, signed long);
+            else if (*iter == 'c')
+                value = (unsigned char)va_arg(args, int);
+            else value = va_arg(args, signed int);
+
+            /* convert number to string */
+            nk_itoa(number_buffer, value);
+            num_len = nk_strlen(number_buffer);
+            padding = NK_MAX(cur_width - NK_MAX(cur_precision, num_len), 0);
+            if ((flag & NK_ARG_FLAG_PLUS) || (flag & NK_ARG_FLAG_SPACE))
+                padding = NK_MAX(padding-1, 0);
+
+            /* fill left padding up to a total of `width` characters */
+            if (!(flag & NK_ARG_FLAG_LEFT)) {
+                while (padding-- > 0 && (len < buf_size)) {
+                    if ((flag & NK_ARG_FLAG_ZERO) && (precision == NK_DEFAULT))
+                        buf[len++] = '0';
+                    else buf[len++] = ' ';
+                }
+            }
+
+            /* copy string value representation into buffer */
+            if ((flag & NK_ARG_FLAG_PLUS) && value >= 0 && len < buf_size)
+                buf[len++] = '+';
+            else if ((flag & NK_ARG_FLAG_SPACE) && value >= 0 && len < buf_size)
+                buf[len++] = ' ';
+
+            /* fill up to precision number of digits with '0' */
+            num_print = NK_MAX(cur_precision, num_len);
+            while (precision && (num_print > num_len) && (len < buf_size)) {
+                buf[len++] = '0';
+                num_print--;
+            }
+
+            /* copy string value representation into buffer */
+            num_iter = number_buffer;
+            while (precision && *num_iter && len < buf_size)
+                buf[len++] = *num_iter++;
+
+            /* fill right padding up to width characters */
+            if (flag & NK_ARG_FLAG_LEFT) {
+                while ((padding-- > 0) && (len < buf_size))
+                    buf[len++] = ' ';
+            }
+        } else if (*iter == 'o' || *iter == 'x' || *iter == 'X' || *iter == 'u') {
+            /* unsigned integer */
+            unsigned long value = 0;
+            int num_len = 0, num_print, padding = 0;
+            int cur_precision = NK_MAX(precision, 1);
+            int cur_width = NK_MAX(width, 0);
+            unsigned int base = (*iter == 'o') ? 8: (*iter == 'u')? 10: 16;
+
+            /* print oct/hex/dec value */
+            const char *upper_output_format = "0123456789ABCDEF";
+            const char *lower_output_format = "0123456789abcdef";
+            const char *output_format = (*iter == 'x') ?
+                lower_output_format: upper_output_format;
+
+            /* retrieve correct value type */
+            if (arg_type == NK_ARG_TYPE_CHAR)
+                value = (unsigned char)va_arg(args, int);
+            else if (arg_type == NK_ARG_TYPE_SHORT)
+                value = (unsigned short)va_arg(args, int);
+            else if (arg_type == NK_ARG_TYPE_LONG)
+                value = va_arg(args, unsigned long);
+            else value = va_arg(args, unsigned int);
+
+            do {
+                /* convert decimal number into hex/oct number */
+                int digit = output_format[value % base];
+                if (num_len < NK_MAX_NUMBER_BUFFER)
+                    number_buffer[num_len++] = (char)digit;
+                value /= base;
+            } while (value > 0);
+
+            num_print = NK_MAX(cur_precision, num_len);
+            padding = NK_MAX(cur_width - NK_MAX(cur_precision, num_len), 0);
+            if (flag & NK_ARG_FLAG_NUM)
+                padding = NK_MAX(padding-1, 0);
+
+            /* fill left padding up to a total of `width` characters */
+            if (!(flag & NK_ARG_FLAG_LEFT)) {
+                while ((padding-- > 0) && (len < buf_size)) {
+                    if ((flag & NK_ARG_FLAG_ZERO) && (precision == NK_DEFAULT))
+                        buf[len++] = '0';
+                    else buf[len++] = ' ';
+                }
+            }
+
+            /* fill up to precision number of digits */
+            if (num_print && (flag & NK_ARG_FLAG_NUM)) {
+                if ((*iter == 'o') && (len < buf_size)) {
+                    buf[len++] = '0';
+                } else if ((*iter == 'x') && ((len+1) < buf_size)) {
+                    buf[len++] = '0';
+                    buf[len++] = 'x';
+                } else if ((*iter == 'X') && ((len+1) < buf_size)) {
+                    buf[len++] = '0';
+                    buf[len++] = 'X';
+                }
+            }
+            while (precision && (num_print > num_len) && (len < buf_size)) {
+                buf[len++] = '0';
+                num_print--;
+            }
+
+            /* reverse number direction */
+            while (num_len > 0) {
+                if (precision && (len < buf_size))
+                    buf[len++] = number_buffer[num_len-1];
+                num_len--;
+            }
+
+            /* fill right padding up to width characters */
+            if (flag & NK_ARG_FLAG_LEFT) {
+                while ((padding-- > 0) && (len < buf_size))
+                    buf[len++] = ' ';
+            }
+        } else if (*iter == 'f') {
+            /* floating point */
+            const char *num_iter;
+            int cur_precision = (precision < 0) ? 6: precision;
+            int prefix, cur_width = NK_MAX(width, 0);
+            double value = va_arg(args, double);
+            int num_len = 0, frac_len = 0, dot = 0;
+            int padding = 0;
+
+            NK_ASSERT(arg_type == NK_ARG_TYPE_DEFAULT);
+            NK_DTOA(number_buffer, value);
+            num_len = nk_strlen(number_buffer);
+
+            /* calculate padding */
+            num_iter = number_buffer;
+            while (*num_iter && *num_iter != '.')
+                num_iter++;
+
+            prefix = (*num_iter == '.')?(int)(num_iter - number_buffer)+1:0;
+            padding = NK_MAX(cur_width - (prefix + NK_MIN(cur_precision, num_len - prefix)) , 0);
+            if ((flag & NK_ARG_FLAG_PLUS) || (flag & NK_ARG_FLAG_SPACE))
+                padding = NK_MAX(padding-1, 0);
+
+            /* fill left padding up to a total of `width` characters */
+            if (!(flag & NK_ARG_FLAG_LEFT)) {
+                while (padding-- > 0 && (len < buf_size)) {
+                    if (flag & NK_ARG_FLAG_ZERO)
+                        buf[len++] = '0';
+                    else buf[len++] = ' ';
+                }
+            }
+
+            /* copy string value representation into buffer */
+            num_iter = number_buffer;
+            if ((flag & NK_ARG_FLAG_PLUS) && (value >= 0) && (len < buf_size))
+                buf[len++] = '+';
+            else if ((flag & NK_ARG_FLAG_SPACE) && (value >= 0) && (len < buf_size))
+                buf[len++] = ' ';
+            while (*num_iter) {
+                if (dot) frac_len++;
+                if (len < buf_size)
+                    buf[len++] = *num_iter;
+                if (*num_iter == '.') dot = 1;
+                if (frac_len >= cur_precision) break;
+                num_iter++;
+            }
+
+            /* fill number up to precision */
+            while (frac_len < cur_precision) {
+                if (!dot && len < buf_size) {
+                    buf[len++] = '.';
+                    dot = 1;
+                }
+                if (len < buf_size)
+                    buf[len++] = '0';
+                frac_len++;
+            }
+
+            /* fill right padding up to width characters */
+            if (flag & NK_ARG_FLAG_LEFT) {
+                while ((padding-- > 0) && (len < buf_size))
+                    buf[len++] = ' ';
+            }
+        } else {
+            /* Specifier not supported: g,G,e,E,p,z */
+            NK_ASSERT(0 && "specifier is not supported!");
+            return result;
+        }
+    }
+    buf[(len >= buf_size)?(buf_size-1):len] = 0;
+    result = (len >= buf_size)?-1:len;
+    return result;
+}
+#endif
+NK_LIB int
+nk_strfmt(char *buf, int buf_size, const char *fmt, va_list args)
+{
+    int result = -1;
+    NK_ASSERT(buf);
+    NK_ASSERT(buf_size);
+    if (!buf || !buf_size || !fmt) return 0;
+#ifdef NK_INCLUDE_STANDARD_IO
+    result = NK_VSNPRINTF(buf, (nk_size)buf_size, fmt, args);
+    result = (result >= buf_size) ? -1: result;
+    buf[buf_size-1] = 0;
+#else
+    result = nk_vsnprintf(buf, buf_size, fmt, args);
+#endif
+    return result;
+}
+#endif
+NK_API nk_hash
+nk_murmur_hash(const void * key, int len, nk_hash seed)
+{
+    /* 32-Bit MurmurHash3: https://code.google.com/p/smhasher/wiki/MurmurHash3*/
+    #define NK_ROTL(x,r) ((x) << (r) | ((x) >> (32 - r)))
+
+    nk_uint h1 = seed;
+    nk_uint k1;
+    const nk_byte *data = (const nk_byte*)key;
+    const nk_byte *keyptr = data;
+    nk_byte *k1ptr;
+    const int bsize = sizeof(k1);
+    const int nblocks = len/4;
+
+    const nk_uint c1 = 0xcc9e2d51;
+    const nk_uint c2 = 0x1b873593;
+    const nk_byte *tail;
+    int i;
+
+    /* body */
+    if (!key) return 0;
+    for (i = 0; i < nblocks; ++i, keyptr += bsize) {
+        k1ptr = (nk_byte*)&k1;
+        k1ptr[0] = keyptr[0];
+        k1ptr[1] = keyptr[1];
+        k1ptr[2] = keyptr[2];
+        k1ptr[3] = keyptr[3];
+
+        k1 *= c1;
+        k1 = NK_ROTL(k1,15);
+        k1 *= c2;
+
+        h1 ^= k1;
+        h1 = NK_ROTL(h1,13);
+        h1 = h1*5+0xe6546b64;
+    }
+
+    /* tail */
+    tail = (const nk_byte*)(data + nblocks*4);
+    k1 = 0;
+    switch (len & 3) {
+        case 3: k1 ^= (nk_uint)(tail[2] << 16); /* fallthrough */
+        case 2: k1 ^= (nk_uint)(tail[1] << 8u); /* fallthrough */
+        case 1: k1 ^= tail[0];
+            k1 *= c1;
+            k1 = NK_ROTL(k1,15);
+            k1 *= c2;
+            h1 ^= k1;
+            break;
+        default: break;
+    }
+
+    /* finalization */
+    h1 ^= (nk_uint)len;
+    /* fmix32 */
+    h1 ^= h1 >> 16;
+    h1 *= 0x85ebca6b;
+    h1 ^= h1 >> 13;
+    h1 *= 0xc2b2ae35;
+    h1 ^= h1 >> 16;
+
+    #undef NK_ROTL
+    return h1;
+}
+#ifdef NK_INCLUDE_STANDARD_IO
+NK_LIB char*
+nk_file_load(const char* path, nk_size* siz, struct nk_allocator *alloc)
+{
+    char *buf;
+    FILE *fd;
+    long ret;
+
+    NK_ASSERT(path);
+    NK_ASSERT(siz);
+    NK_ASSERT(alloc);
+    if (!path || !siz || !alloc)
+        return 0;
+
+    fd = fopen(path, "rb");
+    if (!fd) return 0;
+    fseek(fd, 0, SEEK_END);
+    ret = ftell(fd);
+    if (ret < 0) {
+        fclose(fd);
+        return 0;
+    }
+    *siz = (nk_size)ret;
+    fseek(fd, 0, SEEK_SET);
+    buf = (char*)alloc->alloc(alloc->userdata,0, *siz);
+    NK_ASSERT(buf);
+    if (!buf) {
+        fclose(fd);
+        return 0;
+    }
+    *siz = (nk_size)fread(buf, 1,*siz, fd);
+    fclose(fd);
+    return buf;
+}
+#endif
+NK_LIB int
+nk_text_clamp(const struct nk_user_font *font, const char *text,
+    int text_len, float space, int *glyphs, float *text_width,
+    nk_rune *sep_list, int sep_count)
+{
+    int i = 0;
+    int glyph_len = 0;
+    float last_width = 0;
+    nk_rune unicode = 0;
+    float width = 0;
+    int len = 0;
+    int g = 0;
+    float s;
+
+    int sep_len = 0;
+    int sep_g = 0;
+    float sep_width = 0;
+    sep_count = NK_MAX(sep_count,0);
+
+    glyph_len = nk_utf_decode(text, &unicode, text_len);
+    while (glyph_len && (width < space) && (len < text_len)) {
+        len += glyph_len;
+        s = font->width(font->userdata, font->height, text, len);
+        for (i = 0; i < sep_count; ++i) {
+            if (unicode != sep_list[i]) continue;
+            sep_width = last_width = width;
+            sep_g = g+1;
+            sep_len = len;
+            break;
+        }
+        if (i == sep_count){
+            last_width = sep_width = width;
+            sep_g = g+1;
+        }
+        width = s;
+        glyph_len = nk_utf_decode(&text[len], &unicode, text_len - len);
+        g++;
+    }
+    if (len >= text_len) {
+        *glyphs = g;
+        *text_width = last_width;
+        return len;
+    } else {
+        *glyphs = sep_g;
+        *text_width = sep_width;
+        return (!sep_len) ? len: sep_len;
+    }
+}
+NK_LIB struct nk_vec2
+nk_text_calculate_text_bounds(const struct nk_user_font *font,
+    const char *begin, int byte_len, float row_height, const char **remaining,
+    struct nk_vec2 *out_offset, int *glyphs, int op)
+{
+    float line_height = row_height;
+    struct nk_vec2 text_size = nk_vec2(0,0);
+    float line_width = 0.0f;
+
+    float glyph_width;
+    int glyph_len = 0;
+    nk_rune unicode = 0;
+    int text_len = 0;
+    if (!begin || byte_len <= 0 || !font)
+        return nk_vec2(0,row_height);
+
+    glyph_len = nk_utf_decode(begin, &unicode, byte_len);
+    if (!glyph_len) return text_size;
+    glyph_width = font->width(font->userdata, font->height, begin, glyph_len);
+
+    *glyphs = 0;
+    while ((text_len < byte_len) && glyph_len) {
+        if (unicode == '\n') {
+            text_size.x = NK_MAX(text_size.x, line_width);
+            text_size.y += line_height;
+            line_width = 0;
+            *glyphs+=1;
+            if (op == NK_STOP_ON_NEW_LINE)
+                break;
+
+            text_len++;
+            glyph_len = nk_utf_decode(begin + text_len, &unicode, byte_len-text_len);
+            continue;
+        }
+
+        if (unicode == '\r') {
+            text_len++;
+            *glyphs+=1;
+            glyph_len = nk_utf_decode(begin + text_len, &unicode, byte_len-text_len);
+            continue;
+        }
+
+        *glyphs = *glyphs + 1;
+        text_len += glyph_len;
+        line_width += (float)glyph_width;
+        glyph_len = nk_utf_decode(begin + text_len, &unicode, byte_len-text_len);
+        glyph_width = font->width(font->userdata, font->height, begin+text_len, glyph_len);
+        continue;
+    }
+
+    if (text_size.x < line_width)
+        text_size.x = line_width;
+    if (out_offset)
+        *out_offset = nk_vec2(line_width, text_size.y + line_height);
+    if (line_width > 0 || text_size.y == 0.0f)
+        text_size.y += line_height;
+    if (remaining)
+        *remaining = begin+text_len;
+    return text_size;
+}
+
+
+
+
+
+/* ==============================================================
+ *
+ *                          COLOR
+ *
+ * ===============================================================*/
+NK_INTERN int
+nk_parse_hex(const char *p, int length)
+{
+    int i = 0;
+    int len = 0;
+    while (len < length) {
+        i <<= 4;
+        if (p[len] >= 'a' && p[len] <= 'f')
+            i += ((p[len] - 'a') + 10);
+        else if (p[len] >= 'A' && p[len] <= 'F')
+            i += ((p[len] - 'A') + 10);
+        else i += (p[len] - '0');
+        len++;
+    }
+    return i;
+}
+NK_API struct nk_color
+nk_rgba(int r, int g, int b, int a)
+{
+    struct nk_color ret;
+    ret.r = (nk_byte)NK_CLAMP(0, r, 255);
+    ret.g = (nk_byte)NK_CLAMP(0, g, 255);
+    ret.b = (nk_byte)NK_CLAMP(0, b, 255);
+    ret.a = (nk_byte)NK_CLAMP(0, a, 255);
+    return ret;
+}
+NK_API struct nk_color
+nk_rgb_hex(const char *rgb)
+{
+    struct nk_color col;
+    const char *c = rgb;
+    if (*c == '#') c++;
+    col.r = (nk_byte)nk_parse_hex(c, 2);
+    col.g = (nk_byte)nk_parse_hex(c+2, 2);
+    col.b = (nk_byte)nk_parse_hex(c+4, 2);
+    col.a = 255;
+    return col;
+}
+NK_API struct nk_color
+nk_rgba_hex(const char *rgb)
+{
+    struct nk_color col;
+    const char *c = rgb;
+    if (*c == '#') c++;
+    col.r = (nk_byte)nk_parse_hex(c, 2);
+    col.g = (nk_byte)nk_parse_hex(c+2, 2);
+    col.b = (nk_byte)nk_parse_hex(c+4, 2);
+    col.a = (nk_byte)nk_parse_hex(c+6, 2);
+    return col;
+}
+NK_API void
+nk_color_hex_rgba(char *output, struct nk_color col)
+{
+    #define NK_TO_HEX(i) ((i) <= 9 ? '0' + (i): 'A' - 10 + (i))
+    output[0] = (char)NK_TO_HEX((col.r & 0xF0) >> 4);
+    output[1] = (char)NK_TO_HEX((col.r & 0x0F));
+    output[2] = (char)NK_TO_HEX((col.g & 0xF0) >> 4);
+    output[3] = (char)NK_TO_HEX((col.g & 0x0F));
+    output[4] = (char)NK_TO_HEX((col.b & 0xF0) >> 4);
+    output[5] = (char)NK_TO_HEX((col.b & 0x0F));
+    output[6] = (char)NK_TO_HEX((col.a & 0xF0) >> 4);
+    output[7] = (char)NK_TO_HEX((col.a & 0x0F));
+    output[8] = '\0';
+    #undef NK_TO_HEX
+}
+NK_API void
+nk_color_hex_rgb(char *output, struct nk_color col)
+{
+    #define NK_TO_HEX(i) ((i) <= 9 ? '0' + (i): 'A' - 10 + (i))
+    output[0] = (char)NK_TO_HEX((col.r & 0xF0) >> 4);
+    output[1] = (char)NK_TO_HEX((col.r & 0x0F));
+    output[2] = (char)NK_TO_HEX((col.g & 0xF0) >> 4);
+    output[3] = (char)NK_TO_HEX((col.g & 0x0F));
+    output[4] = (char)NK_TO_HEX((col.b & 0xF0) >> 4);
+    output[5] = (char)NK_TO_HEX((col.b & 0x0F));
+    output[6] = '\0';
+    #undef NK_TO_HEX
+}
+NK_API struct nk_color
+nk_rgba_iv(const int *c)
+{
+    return nk_rgba(c[0], c[1], c[2], c[3]);
+}
+NK_API struct nk_color
+nk_rgba_bv(const nk_byte *c)
+{
+    return nk_rgba(c[0], c[1], c[2], c[3]);
+}
+NK_API struct nk_color
+nk_rgb(int r, int g, int b)
+{
+    struct nk_color ret;
+    ret.r = (nk_byte)NK_CLAMP(0, r, 255);
+    ret.g = (nk_byte)NK_CLAMP(0, g, 255);
+    ret.b = (nk_byte)NK_CLAMP(0, b, 255);
+    ret.a = (nk_byte)255;
+    return ret;
+}
+NK_API struct nk_color
+nk_rgb_iv(const int *c)
+{
+    return nk_rgb(c[0], c[1], c[2]);
+}
+NK_API struct nk_color
+nk_rgb_bv(const nk_byte* c)
+{
+    return nk_rgb(c[0], c[1], c[2]);
+}
+NK_API struct nk_color
+nk_rgba_u32(nk_uint in)
+{
+    struct nk_color ret;
+    ret.r = (in & 0xFF);
+    ret.g = ((in >> 8) & 0xFF);
+    ret.b = ((in >> 16) & 0xFF);
+    ret.a = (nk_byte)((in >> 24) & 0xFF);
+    return ret;
+}
+NK_API struct nk_color
+nk_rgba_f(float r, float g, float b, float a)
+{
+    struct nk_color ret;
+    ret.r = (nk_byte)(NK_SATURATE(r) * 255.0f);
+    ret.g = (nk_byte)(NK_SATURATE(g) * 255.0f);
+    ret.b = (nk_byte)(NK_SATURATE(b) * 255.0f);
+    ret.a = (nk_byte)(NK_SATURATE(a) * 255.0f);
+    return ret;
+}
+NK_API struct nk_color
+nk_rgba_fv(const float *c)
+{
+    return nk_rgba_f(c[0], c[1], c[2], c[3]);
+}
+NK_API struct nk_color
+nk_rgba_cf(struct nk_colorf c)
+{
+    return nk_rgba_f(c.r, c.g, c.b, c.a);
+}
+NK_API struct nk_color
+nk_rgb_f(float r, float g, float b)
+{
+    struct nk_color ret;
+    ret.r = (nk_byte)(NK_SATURATE(r) * 255.0f);
+    ret.g = (nk_byte)(NK_SATURATE(g) * 255.0f);
+    ret.b = (nk_byte)(NK_SATURATE(b) * 255.0f);
+    ret.a = 255;
+    return ret;
+}
+NK_API struct nk_color
+nk_rgb_fv(const float *c)
+{
+    return nk_rgb_f(c[0], c[1], c[2]);
+}
+NK_API struct nk_color
+nk_rgb_cf(struct nk_colorf c)
+{
+    return nk_rgb_f(c.r, c.g, c.b);
+}
+NK_API struct nk_color
+nk_hsv(int h, int s, int v)
+{
+    return nk_hsva(h, s, v, 255);
+}
+NK_API struct nk_color
+nk_hsv_iv(const int *c)
+{
+    return nk_hsv(c[0], c[1], c[2]);
+}
+NK_API struct nk_color
+nk_hsv_bv(const nk_byte *c)
+{
+    return nk_hsv(c[0], c[1], c[2]);
+}
+NK_API struct nk_color
+nk_hsv_f(float h, float s, float v)
+{
+    return nk_hsva_f(h, s, v, 1.0f);
+}
+NK_API struct nk_color
+nk_hsv_fv(const float *c)
+{
+    return nk_hsv_f(c[0], c[1], c[2]);
+}
+NK_API struct nk_color
+nk_hsva(int h, int s, int v, int a)
+{
+    float hf = ((float)NK_CLAMP(0, h, 255)) / 255.0f;
+    float sf = ((float)NK_CLAMP(0, s, 255)) / 255.0f;
+    float vf = ((float)NK_CLAMP(0, v, 255)) / 255.0f;
+    float af = ((float)NK_CLAMP(0, a, 255)) / 255.0f;
+    return nk_hsva_f(hf, sf, vf, af);
+}
+NK_API struct nk_color
+nk_hsva_iv(const int *c)
+{
+    return nk_hsva(c[0], c[1], c[2], c[3]);
+}
+NK_API struct nk_color
+nk_hsva_bv(const nk_byte *c)
+{
+    return nk_hsva(c[0], c[1], c[2], c[3]);
+}
+NK_API struct nk_colorf
+nk_hsva_colorf(float h, float s, float v, float a)
+{
+    int i;
+    float p, q, t, f;
+    struct nk_colorf out = {0,0,0,0};
+    if (s <= 0.0f) {
+        out.r = v; out.g = v; out.b = v; out.a = a;
+        return out;
+    }
+    h = h / (60.0f/360.0f);
+    i = (int)h;
+    f = h - (float)i;
+    p = v * (1.0f - s);
+    q = v * (1.0f - (s * f));
+    t = v * (1.0f - s * (1.0f - f));
+
+    switch (i) {
+    case 0: default: out.r = v; out.g = t; out.b = p; break;
+    case 1: out.r = q; out.g = v; out.b = p; break;
+    case 2: out.r = p; out.g = v; out.b = t; break;
+    case 3: out.r = p; out.g = q; out.b = v; break;
+    case 4: out.r = t; out.g = p; out.b = v; break;
+    case 5: out.r = v; out.g = p; out.b = q; break;}
+    out.a = a;
+    return out;
+}
+NK_API struct nk_colorf
+nk_hsva_colorfv(float *c)
+{
+    return nk_hsva_colorf(c[0], c[1], c[2], c[3]);
+}
+NK_API struct nk_color
+nk_hsva_f(float h, float s, float v, float a)
+{
+    struct nk_colorf c = nk_hsva_colorf(h, s, v, a);
+    return nk_rgba_f(c.r, c.g, c.b, c.a);
+}
+NK_API struct nk_color
+nk_hsva_fv(const float *c)
+{
+    return nk_hsva_f(c[0], c[1], c[2], c[3]);
+}
+NK_API nk_uint
+nk_color_u32(struct nk_color in)
+{
+    nk_uint out = (nk_uint)in.r;
+    out |= ((nk_uint)in.g << 8);
+    out |= ((nk_uint)in.b << 16);
+    out |= ((nk_uint)in.a << 24);
+    return out;
+}
+NK_API void
+nk_color_f(float *r, float *g, float *b, float *a, struct nk_color in)
+{
+    NK_STORAGE const float s = 1.0f/255.0f;
+    *r = (float)in.r * s;
+    *g = (float)in.g * s;
+    *b = (float)in.b * s;
+    *a = (float)in.a * s;
+}
+NK_API void
+nk_color_fv(float *c, struct nk_color in)
+{
+    nk_color_f(&c[0], &c[1], &c[2], &c[3], in);
+}
+NK_API struct nk_colorf
+nk_color_cf(struct nk_color in)
+{
+    struct nk_colorf o;
+    nk_color_f(&o.r, &o.g, &o.b, &o.a, in);
+    return o;
+}
+NK_API void
+nk_color_d(double *r, double *g, double *b, double *a, struct nk_color in)
+{
+    NK_STORAGE const double s = 1.0/255.0;
+    *r = (double)in.r * s;
+    *g = (double)in.g * s;
+    *b = (double)in.b * s;
+    *a = (double)in.a * s;
+}
+NK_API void
+nk_color_dv(double *c, struct nk_color in)
+{
+    nk_color_d(&c[0], &c[1], &c[2], &c[3], in);
+}
+NK_API void
+nk_color_hsv_f(float *out_h, float *out_s, float *out_v, struct nk_color in)
+{
+    float a;
+    nk_color_hsva_f(out_h, out_s, out_v, &a, in);
+}
+NK_API void
+nk_color_hsv_fv(float *out, struct nk_color in)
+{
+    float a;
+    nk_color_hsva_f(&out[0], &out[1], &out[2], &a, in);
+}
+NK_API void
+nk_colorf_hsva_f(float *out_h, float *out_s,
+    float *out_v, float *out_a, struct nk_colorf in)
+{
+    float chroma;
+    float K = 0.0f;
+    if (in.g < in.b) {
+        const float t = in.g; in.g = in.b; in.b = t;
+        K = -1.f;
+    }
+    if (in.r < in.g) {
+        const float t = in.r; in.r = in.g; in.g = t;
+        K = -2.f/6.0f - K;
+    }
+    chroma = in.r - ((in.g < in.b) ? in.g: in.b);
+    *out_h = NK_ABS(K + (in.g - in.b)/(6.0f * chroma + 1e-20f));
+    *out_s = chroma / (in.r + 1e-20f);
+    *out_v = in.r;
+    *out_a = in.a;
+
+}
+NK_API void
+nk_colorf_hsva_fv(float *hsva, struct nk_colorf in)
+{
+    nk_colorf_hsva_f(&hsva[0], &hsva[1], &hsva[2], &hsva[3], in);
+}
+NK_API void
+nk_color_hsva_f(float *out_h, float *out_s,
+    float *out_v, float *out_a, struct nk_color in)
+{
+    struct nk_colorf col;
+    nk_color_f(&col.r,&col.g,&col.b,&col.a, in);
+    nk_colorf_hsva_f(out_h, out_s, out_v, out_a, col);
+}
+NK_API void
+nk_color_hsva_fv(float *out, struct nk_color in)
+{
+    nk_color_hsva_f(&out[0], &out[1], &out[2], &out[3], in);
+}
+NK_API void
+nk_color_hsva_i(int *out_h, int *out_s, int *out_v,
+                int *out_a, struct nk_color in)
+{
+    float h,s,v,a;
+    nk_color_hsva_f(&h, &s, &v, &a, in);
+    *out_h = (nk_byte)(h * 255.0f);
+    *out_s = (nk_byte)(s * 255.0f);
+    *out_v = (nk_byte)(v * 255.0f);
+    *out_a = (nk_byte)(a * 255.0f);
+}
+NK_API void
+nk_color_hsva_iv(int *out, struct nk_color in)
+{
+    nk_color_hsva_i(&out[0], &out[1], &out[2], &out[3], in);
+}
+NK_API void
+nk_color_hsva_bv(nk_byte *out, struct nk_color in)
+{
+    int tmp[4];
+    nk_color_hsva_i(&tmp[0], &tmp[1], &tmp[2], &tmp[3], in);
+    out[0] = (nk_byte)tmp[0];
+    out[1] = (nk_byte)tmp[1];
+    out[2] = (nk_byte)tmp[2];
+    out[3] = (nk_byte)tmp[3];
+}
+NK_API void
+nk_color_hsva_b(nk_byte *h, nk_byte *s, nk_byte *v, nk_byte *a, struct nk_color in)
+{
+    int tmp[4];
+    nk_color_hsva_i(&tmp[0], &tmp[1], &tmp[2], &tmp[3], in);
+    *h = (nk_byte)tmp[0];
+    *s = (nk_byte)tmp[1];
+    *v = (nk_byte)tmp[2];
+    *a = (nk_byte)tmp[3];
+}
+NK_API void
+nk_color_hsv_i(int *out_h, int *out_s, int *out_v, struct nk_color in)
+{
+    int a;
+    nk_color_hsva_i(out_h, out_s, out_v, &a, in);
+}
+NK_API void
+nk_color_hsv_b(nk_byte *out_h, nk_byte *out_s, nk_byte *out_v, struct nk_color in)
+{
+    int tmp[4];
+    nk_color_hsva_i(&tmp[0], &tmp[1], &tmp[2], &tmp[3], in);
+    *out_h = (nk_byte)tmp[0];
+    *out_s = (nk_byte)tmp[1];
+    *out_v = (nk_byte)tmp[2];
+}
+NK_API void
+nk_color_hsv_iv(int *out, struct nk_color in)
+{
+    nk_color_hsv_i(&out[0], &out[1], &out[2], in);
+}
+NK_API void
+nk_color_hsv_bv(nk_byte *out, struct nk_color in)
+{
+    int tmp[4];
+    nk_color_hsv_i(&tmp[0], &tmp[1], &tmp[2], in);
+    out[0] = (nk_byte)tmp[0];
+    out[1] = (nk_byte)tmp[1];
+    out[2] = (nk_byte)tmp[2];
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              UTF-8
+ *
+ * ===============================================================*/
+NK_GLOBAL const nk_byte nk_utfbyte[NK_UTF_SIZE+1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
+NK_GLOBAL const nk_byte nk_utfmask[NK_UTF_SIZE+1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
+NK_GLOBAL const nk_uint nk_utfmin[NK_UTF_SIZE+1] = {0, 0, 0x80, 0x800, 0x10000};
+NK_GLOBAL const nk_uint nk_utfmax[NK_UTF_SIZE+1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
+
+NK_INTERN int
+nk_utf_validate(nk_rune *u, int i)
+{
+    NK_ASSERT(u);
+    if (!u) return 0;
+    if (!NK_BETWEEN(*u, nk_utfmin[i], nk_utfmax[i]) ||
+         NK_BETWEEN(*u, 0xD800, 0xDFFF))
+            *u = NK_UTF_INVALID;
+    for (i = 1; *u > nk_utfmax[i]; ++i);
+    return i;
+}
+NK_INTERN nk_rune
+nk_utf_decode_byte(char c, int *i)
+{
+    NK_ASSERT(i);
+    if (!i) return 0;
+    for(*i = 0; *i < (int)NK_LEN(nk_utfmask); ++(*i)) {
+        if (((nk_byte)c & nk_utfmask[*i]) == nk_utfbyte[*i])
+            return (nk_byte)(c & ~nk_utfmask[*i]);
+    }
+    return 0;
+}
+NK_API int
+nk_utf_decode(const char *c, nk_rune *u, int clen)
+{
+    int i, j, len, type=0;
+    nk_rune udecoded;
+
+    NK_ASSERT(c);
+    NK_ASSERT(u);
+
+    if (!c || !u) return 0;
+    if (!clen) return 0;
+    *u = NK_UTF_INVALID;
+
+    udecoded = nk_utf_decode_byte(c[0], &len);
+    if (!NK_BETWEEN(len, 1, NK_UTF_SIZE))
+        return 1;
+
+    for (i = 1, j = 1; i < clen && j < len; ++i, ++j) {
+        udecoded = (udecoded << 6) | nk_utf_decode_byte(c[i], &type);
+        if (type != 0)
+            return j;
+    }
+    if (j < len)
+        return 0;
+    *u = udecoded;
+    nk_utf_validate(u, len);
+    return len;
+}
+NK_INTERN char
+nk_utf_encode_byte(nk_rune u, int i)
+{
+    return (char)((nk_utfbyte[i]) | ((nk_byte)u & ~nk_utfmask[i]));
+}
+NK_API int
+nk_utf_encode(nk_rune u, char *c, int clen)
+{
+    int len, i;
+    len = nk_utf_validate(&u, 0);
+    if (clen < len || !len || len > NK_UTF_SIZE)
+        return 0;
+
+    for (i = len - 1; i != 0; --i) {
+        c[i] = nk_utf_encode_byte(u, 0);
+        u >>= 6;
+    }
+    c[0] = nk_utf_encode_byte(u, len);
+    return len;
+}
+NK_API int
+nk_utf_len(const char *str, int len)
+{
+    const char *text;
+    int glyphs = 0;
+    int text_len;
+    int glyph_len;
+    int src_len = 0;
+    nk_rune unicode;
+
+    NK_ASSERT(str);
+    if (!str || !len) return 0;
+
+    text = str;
+    text_len = len;
+    glyph_len = nk_utf_decode(text, &unicode, text_len);
+    while (glyph_len && src_len < len) {
+        glyphs++;
+        src_len = src_len + glyph_len;
+        glyph_len = nk_utf_decode(text + src_len, &unicode, text_len - src_len);
+    }
+    return glyphs;
+}
+NK_API const char*
+nk_utf_at(const char *buffer, int length, int index,
+    nk_rune *unicode, int *len)
+{
+    int i = 0;
+    int src_len = 0;
+    int glyph_len = 0;
+    const char *text;
+    int text_len;
+
+    NK_ASSERT(buffer);
+    NK_ASSERT(unicode);
+    NK_ASSERT(len);
+
+    if (!buffer || !unicode || !len) return 0;
+    if (index < 0) {
+        *unicode = NK_UTF_INVALID;
+        *len = 0;
+        return 0;
+    }
+
+    text = buffer;
+    text_len = length;
+    glyph_len = nk_utf_decode(text, unicode, text_len);
+    while (glyph_len) {
+        if (i == index) {
+            *len = glyph_len;
+            break;
+        }
+
+        i++;
+        src_len = src_len + glyph_len;
+        glyph_len = nk_utf_decode(text + src_len, unicode, text_len - src_len);
+    }
+    if (i != index) return 0;
+    return buffer + src_len;
+}
+
+
+
+
+
+/* ==============================================================
+ *
+ *                          BUFFER
+ *
+ * ===============================================================*/
+#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
+NK_LIB void*
+nk_malloc(nk_handle unused, void *old,nk_size size)
+{
+    NK_UNUSED(unused);
+    NK_UNUSED(old);
+    return malloc(size);
+}
+NK_LIB void
+nk_mfree(nk_handle unused, void *ptr)
+{
+    NK_UNUSED(unused);
+    free(ptr);
+}
+NK_API void
+nk_buffer_init_default(struct nk_buffer *buffer)
+{
+    struct nk_allocator alloc;
+    alloc.userdata.ptr = 0;
+    alloc.alloc = nk_malloc;
+    alloc.free = nk_mfree;
+    nk_buffer_init(buffer, &alloc, NK_BUFFER_DEFAULT_INITIAL_SIZE);
+}
+#endif
+
+NK_API void
+nk_buffer_init(struct nk_buffer *b, const struct nk_allocator *a,
+    nk_size initial_size)
+{
+    NK_ASSERT(b);
+    NK_ASSERT(a);
+    NK_ASSERT(initial_size);
+    if (!b || !a || !initial_size) return;
+
+    nk_zero(b, sizeof(*b));
+    b->type = NK_BUFFER_DYNAMIC;
+    b->memory.ptr = a->alloc(a->userdata,0, initial_size);
+    b->memory.size = initial_size;
+    b->size = initial_size;
+    b->grow_factor = 2.0f;
+    b->pool = *a;
+}
+NK_API void
+nk_buffer_init_fixed(struct nk_buffer *b, void *m, nk_size size)
+{
+    NK_ASSERT(b);
+    NK_ASSERT(m);
+    NK_ASSERT(size);
+    if (!b || !m || !size) return;
+
+    nk_zero(b, sizeof(*b));
+    b->type = NK_BUFFER_FIXED;
+    b->memory.ptr = m;
+    b->memory.size = size;
+    b->size = size;
+}
+NK_LIB void*
+nk_buffer_align(void *unaligned,
+    nk_size align, nk_size *alignment,
+    enum nk_buffer_allocation_type type)
+{
+    void *memory = 0;
+    switch (type) {
+    default:
+    case NK_BUFFER_MAX:
+    case NK_BUFFER_FRONT:
+        if (align) {
+            memory = NK_ALIGN_PTR(unaligned, align);
+            *alignment = (nk_size)((nk_byte*)memory - (nk_byte*)unaligned);
+        } else {
+            memory = unaligned;
+            *alignment = 0;
+        }
+        break;
+    case NK_BUFFER_BACK:
+        if (align) {
+            memory = NK_ALIGN_PTR_BACK(unaligned, align);
+            *alignment = (nk_size)((nk_byte*)unaligned - (nk_byte*)memory);
+        } else {
+            memory = unaligned;
+            *alignment = 0;
+        }
+        break;
+    }
+    return memory;
+}
+NK_LIB void*
+nk_buffer_realloc(struct nk_buffer *b, nk_size capacity, nk_size *size)
+{
+    void *temp;
+    nk_size buffer_size;
+
+    NK_ASSERT(b);
+    NK_ASSERT(size);
+    if (!b || !size || !b->pool.alloc || !b->pool.free)
+        return 0;
+
+    buffer_size = b->memory.size;
+    temp = b->pool.alloc(b->pool.userdata, b->memory.ptr, capacity);
+    NK_ASSERT(temp);
+    if (!temp) return 0;
+
+    *size = capacity;
+    if (temp != b->memory.ptr) {
+        NK_MEMCPY(temp, b->memory.ptr, buffer_size);
+        b->pool.free(b->pool.userdata, b->memory.ptr);
+    }
+
+    if (b->size == buffer_size) {
+        /* no back buffer so just set correct size */
+        b->size = capacity;
+        return temp;
+    } else {
+        /* copy back buffer to the end of the new buffer */
+        void *dst, *src;
+        nk_size back_size;
+        back_size = buffer_size - b->size;
+        dst = nk_ptr_add(void, temp, capacity - back_size);
+        src = nk_ptr_add(void, temp, b->size);
+        NK_MEMCPY(dst, src, back_size);
+        b->size = capacity - back_size;
+    }
+    return temp;
+}
+NK_LIB void*
+nk_buffer_alloc(struct nk_buffer *b, enum nk_buffer_allocation_type type,
+    nk_size size, nk_size align)
+{
+    int full;
+    nk_size alignment;
+    void *unaligned;
+    void *memory;
+
+    NK_ASSERT(b);
+    NK_ASSERT(size);
+    if (!b || !size) return 0;
+    b->needed += size;
+
+    /* calculate total size with needed alignment + size */
+    if (type == NK_BUFFER_FRONT)
+        unaligned = nk_ptr_add(void, b->memory.ptr, b->allocated);
+    else unaligned = nk_ptr_add(void, b->memory.ptr, b->size - size);
+    memory = nk_buffer_align(unaligned, align, &alignment, type);
+
+    /* check if buffer has enough memory*/
+    if (type == NK_BUFFER_FRONT)
+        full = ((b->allocated + size + alignment) > b->size);
+    else full = ((b->size - NK_MIN(b->size,(size + alignment))) <= b->allocated);
+
+    if (full) {
+        nk_size capacity;
+        if (b->type != NK_BUFFER_DYNAMIC)
+            return 0;
+        NK_ASSERT(b->pool.alloc && b->pool.free);
+        if (b->type != NK_BUFFER_DYNAMIC || !b->pool.alloc || !b->pool.free)
+            return 0;
+
+        /* buffer is full so allocate bigger buffer if dynamic */
+        capacity = (nk_size)((float)b->memory.size * b->grow_factor);
+        capacity = NK_MAX(capacity, nk_round_up_pow2((nk_uint)(b->allocated + size)));
+        b->memory.ptr = nk_buffer_realloc(b, capacity, &b->memory.size);
+        if (!b->memory.ptr) return 0;
+
+        /* align newly allocated pointer */
+        if (type == NK_BUFFER_FRONT)
+            unaligned = nk_ptr_add(void, b->memory.ptr, b->allocated);
+        else unaligned = nk_ptr_add(void, b->memory.ptr, b->size - size);
+        memory = nk_buffer_align(unaligned, align, &alignment, type);
+    }
+    if (type == NK_BUFFER_FRONT)
+        b->allocated += size + alignment;
+    else b->size -= (size + alignment);
+    b->needed += alignment;
+    b->calls++;
+    return memory;
+}
+NK_API void
+nk_buffer_push(struct nk_buffer *b, enum nk_buffer_allocation_type type,
+    const void *memory, nk_size size, nk_size align)
+{
+    void *mem = nk_buffer_alloc(b, type, size, align);
+    if (!mem) return;
+    NK_MEMCPY(mem, memory, size);
+}
+NK_API void
+nk_buffer_mark(struct nk_buffer *buffer, enum nk_buffer_allocation_type type)
+{
+    NK_ASSERT(buffer);
+    if (!buffer) return;
+    buffer->marker[type].active = nk_true;
+    if (type == NK_BUFFER_BACK)
+        buffer->marker[type].offset = buffer->size;
+    else buffer->marker[type].offset = buffer->allocated;
+}
+NK_API void
+nk_buffer_reset(struct nk_buffer *buffer, enum nk_buffer_allocation_type type)
+{
+    NK_ASSERT(buffer);
+    if (!buffer) return;
+    if (type == NK_BUFFER_BACK) {
+        /* reset back buffer either back to marker or empty */
+        buffer->needed -= (buffer->memory.size - buffer->marker[type].offset);
+        if (buffer->marker[type].active)
+            buffer->size = buffer->marker[type].offset;
+        else buffer->size = buffer->memory.size;
+        buffer->marker[type].active = nk_false;
+    } else {
+        /* reset front buffer either back to back marker or empty */
+        buffer->needed -= (buffer->allocated - buffer->marker[type].offset);
+        if (buffer->marker[type].active)
+            buffer->allocated = buffer->marker[type].offset;
+        else buffer->allocated = 0;
+        buffer->marker[type].active = nk_false;
+    }
+}
+NK_API void
+nk_buffer_clear(struct nk_buffer *b)
+{
+    NK_ASSERT(b);
+    if (!b) return;
+    b->allocated = 0;
+    b->size = b->memory.size;
+    b->calls = 0;
+    b->needed = 0;
+}
+NK_API void
+nk_buffer_free(struct nk_buffer *b)
+{
+    NK_ASSERT(b);
+    if (!b || !b->memory.ptr) return;
+    if (b->type == NK_BUFFER_FIXED) return;
+    if (!b->pool.free) return;
+    NK_ASSERT(b->pool.free);
+    b->pool.free(b->pool.userdata, b->memory.ptr);
+}
+NK_API void
+nk_buffer_info(struct nk_memory_status *s, struct nk_buffer *b)
+{
+    NK_ASSERT(b);
+    NK_ASSERT(s);
+    if (!s || !b) return;
+    s->allocated = b->allocated;
+    s->size =  b->memory.size;
+    s->needed = b->needed;
+    s->memory = b->memory.ptr;
+    s->calls = b->calls;
+}
+NK_API void*
+nk_buffer_memory(struct nk_buffer *buffer)
+{
+    NK_ASSERT(buffer);
+    if (!buffer) return 0;
+    return buffer->memory.ptr;
+}
+NK_API const void*
+nk_buffer_memory_const(const struct nk_buffer *buffer)
+{
+    NK_ASSERT(buffer);
+    if (!buffer) return 0;
+    return buffer->memory.ptr;
+}
+NK_API nk_size
+nk_buffer_total(struct nk_buffer *buffer)
+{
+    NK_ASSERT(buffer);
+    if (!buffer) return 0;
+    return buffer->memory.size;
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              STRING
+ *
+ * ===============================================================*/
+#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
+NK_API void
+nk_str_init_default(struct nk_str *str)
+{
+    struct nk_allocator alloc;
+    alloc.userdata.ptr = 0;
+    alloc.alloc = nk_malloc;
+    alloc.free = nk_mfree;
+    nk_buffer_init(&str->buffer, &alloc, 32);
+    str->len = 0;
+}
+#endif
+
+NK_API void
+nk_str_init(struct nk_str *str, const struct nk_allocator *alloc, nk_size size)
+{
+    nk_buffer_init(&str->buffer, alloc, size);
+    str->len = 0;
+}
+NK_API void
+nk_str_init_fixed(struct nk_str *str, void *memory, nk_size size)
+{
+    nk_buffer_init_fixed(&str->buffer, memory, size);
+    str->len = 0;
+}
+NK_API int
+nk_str_append_text_char(struct nk_str *s, const char *str, int len)
+{
+    char *mem;
+    NK_ASSERT(s);
+    NK_ASSERT(str);
+    if (!s || !str || !len) return 0;
+    mem = (char*)nk_buffer_alloc(&s->buffer, NK_BUFFER_FRONT, (nk_size)len * sizeof(char), 0);
+    if (!mem) return 0;
+    NK_MEMCPY(mem, str, (nk_size)len * sizeof(char));
+    s->len += nk_utf_len(str, len);
+    return len;
+}
+NK_API int
+nk_str_append_str_char(struct nk_str *s, const char *str)
+{
+    return nk_str_append_text_char(s, str, nk_strlen(str));
+}
+NK_API int
+nk_str_append_text_utf8(struct nk_str *str, const char *text, int len)
+{
+    int i = 0;
+    int byte_len = 0;
+    nk_rune unicode;
+    if (!str || !text || !len) return 0;
+    for (i = 0; i < len; ++i)
+        byte_len += nk_utf_decode(text+byte_len, &unicode, 4);
+    nk_str_append_text_char(str, text, byte_len);
+    return len;
+}
+NK_API int
+nk_str_append_str_utf8(struct nk_str *str, const char *text)
+{
+    int runes = 0;
+    int byte_len = 0;
+    int num_runes = 0;
+    int glyph_len = 0;
+    nk_rune unicode;
+    if (!str || !text) return 0;
+
+    glyph_len = byte_len = nk_utf_decode(text+byte_len, &unicode, 4);
+    while (unicode != '\0' && glyph_len) {
+        glyph_len = nk_utf_decode(text+byte_len, &unicode, 4);
+        byte_len += glyph_len;
+        num_runes++;
+    }
+    nk_str_append_text_char(str, text, byte_len);
+    return runes;
+}
+NK_API int
+nk_str_append_text_runes(struct nk_str *str, const nk_rune *text, int len)
+{
+    int i = 0;
+    int byte_len = 0;
+    nk_glyph glyph;
+
+    NK_ASSERT(str);
+    if (!str || !text || !len) return 0;
+    for (i = 0; i < len; ++i) {
+        byte_len = nk_utf_encode(text[i], glyph, NK_UTF_SIZE);
+        if (!byte_len) break;
+        nk_str_append_text_char(str, glyph, byte_len);
+    }
+    return len;
+}
+NK_API int
+nk_str_append_str_runes(struct nk_str *str, const nk_rune *runes)
+{
+    int i = 0;
+    nk_glyph glyph;
+    int byte_len;
+    NK_ASSERT(str);
+    if (!str || !runes) return 0;
+    while (runes[i] != '\0') {
+        byte_len = nk_utf_encode(runes[i], glyph, NK_UTF_SIZE);
+        nk_str_append_text_char(str, glyph, byte_len);
+        i++;
+    }
+    return i;
+}
+NK_API int
+nk_str_insert_at_char(struct nk_str *s, int pos, const char *str, int len)
+{
+    int i;
+    void *mem;
+    char *src;
+    char *dst;
+
+    int copylen;
+    NK_ASSERT(s);
+    NK_ASSERT(str);
+    NK_ASSERT(len >= 0);
+    if (!s || !str || !len || (nk_size)pos > s->buffer.allocated) return 0;
+    if ((s->buffer.allocated + (nk_size)len >= s->buffer.memory.size) &&
+        (s->buffer.type == NK_BUFFER_FIXED)) return 0;
+
+    copylen = (int)s->buffer.allocated - pos;
+    if (!copylen) {
+        nk_str_append_text_char(s, str, len);
+        return 1;
+    }
+    mem = nk_buffer_alloc(&s->buffer, NK_BUFFER_FRONT, (nk_size)len * sizeof(char), 0);
+    if (!mem) return 0;
+
+    /* memmove */
+    NK_ASSERT(((int)pos + (int)len + ((int)copylen - 1)) >= 0);
+    NK_ASSERT(((int)pos + ((int)copylen - 1)) >= 0);
+    dst = nk_ptr_add(char, s->buffer.memory.ptr, pos + len + (copylen - 1));
+    src = nk_ptr_add(char, s->buffer.memory.ptr, pos + (copylen-1));
+    for (i = 0; i < copylen; ++i) *dst-- = *src--;
+    mem = nk_ptr_add(void, s->buffer.memory.ptr, pos);
+    NK_MEMCPY(mem, str, (nk_size)len * sizeof(char));
+    s->len = nk_utf_len((char *)s->buffer.memory.ptr, (int)s->buffer.allocated);
+    return 1;
+}
+NK_API int
+nk_str_insert_at_rune(struct nk_str *str, int pos, const char *cstr, int len)
+{
+    int glyph_len;
+    nk_rune unicode;
+    const char *begin;
+    const char *buffer;
+
+    NK_ASSERT(str);
+    NK_ASSERT(cstr);
+    NK_ASSERT(len);
+    if (!str || !cstr || !len) return 0;
+    begin = nk_str_at_rune(str, pos, &unicode, &glyph_len);
+    if (!str->len)
+        return nk_str_append_text_char(str, cstr, len);
+    buffer = nk_str_get_const(str);
+    if (!begin) return 0;
+    return nk_str_insert_at_char(str, (int)(begin - buffer), cstr, len);
+}
+NK_API int
+nk_str_insert_text_char(struct nk_str *str, int pos, const char *text, int len)
+{
+    return nk_str_insert_text_utf8(str, pos, text, len);
+}
+NK_API int
+nk_str_insert_str_char(struct nk_str *str, int pos, const char *text)
+{
+    return nk_str_insert_text_utf8(str, pos, text, nk_strlen(text));
+}
+NK_API int
+nk_str_insert_text_utf8(struct nk_str *str, int pos, const char *text, int len)
+{
+    int i = 0;
+    int byte_len = 0;
+    nk_rune unicode;
+
+    NK_ASSERT(str);
+    NK_ASSERT(text);
+    if (!str || !text || !len) return 0;
+    for (i = 0; i < len; ++i)
+        byte_len += nk_utf_decode(text+byte_len, &unicode, 4);
+    nk_str_insert_at_rune(str, pos, text, byte_len);
+    return len;
+}
+NK_API int
+nk_str_insert_str_utf8(struct nk_str *str, int pos, const char *text)
+{
+    int runes = 0;
+    int byte_len = 0;
+    int num_runes = 0;
+    int glyph_len = 0;
+    nk_rune unicode;
+    if (!str || !text) return 0;
+
+    glyph_len = byte_len = nk_utf_decode(text+byte_len, &unicode, 4);
+    while (unicode != '\0' && glyph_len) {
+        glyph_len = nk_utf_decode(text+byte_len, &unicode, 4);
+        byte_len += glyph_len;
+        num_runes++;
+    }
+    nk_str_insert_at_rune(str, pos, text, byte_len);
+    return runes;
+}
+NK_API int
+nk_str_insert_text_runes(struct nk_str *str, int pos, const nk_rune *runes, int len)
+{
+    int i = 0;
+    int byte_len = 0;
+    nk_glyph glyph;
+
+    NK_ASSERT(str);
+    if (!str || !runes || !len) return 0;
+    for (i = 0; i < len; ++i) {
+        byte_len = nk_utf_encode(runes[i], glyph, NK_UTF_SIZE);
+        if (!byte_len) break;
+        nk_str_insert_at_rune(str, pos+i, glyph, byte_len);
+    }
+    return len;
+}
+NK_API int
+nk_str_insert_str_runes(struct nk_str *str, int pos, const nk_rune *runes)
+{
+    int i = 0;
+    nk_glyph glyph;
+    int byte_len;
+    NK_ASSERT(str);
+    if (!str || !runes) return 0;
+    while (runes[i] != '\0') {
+        byte_len = nk_utf_encode(runes[i], glyph, NK_UTF_SIZE);
+        nk_str_insert_at_rune(str, pos+i, glyph, byte_len);
+        i++;
+    }
+    return i;
+}
+NK_API void
+nk_str_remove_chars(struct nk_str *s, int len)
+{
+    NK_ASSERT(s);
+    NK_ASSERT(len >= 0);
+    if (!s || len < 0 || (nk_size)len > s->buffer.allocated) return;
+    NK_ASSERT(((int)s->buffer.allocated - (int)len) >= 0);
+    s->buffer.allocated -= (nk_size)len;
+    s->len = nk_utf_len((char *)s->buffer.memory.ptr, (int)s->buffer.allocated);
+}
+NK_API void
+nk_str_remove_runes(struct nk_str *str, int len)
+{
+    int index;
+    const char *begin;
+    const char *end;
+    nk_rune unicode;
+
+    NK_ASSERT(str);
+    NK_ASSERT(len >= 0);
+    if (!str || len < 0) return;
+    if (len >= str->len) {
+        str->len = 0;
+        return;
+    }
+
+    index = str->len - len;
+    begin = nk_str_at_rune(str, index, &unicode, &len);
+    end = (const char*)str->buffer.memory.ptr + str->buffer.allocated;
+    nk_str_remove_chars(str, (int)(end-begin)+1);
+}
+NK_API void
+nk_str_delete_chars(struct nk_str *s, int pos, int len)
+{
+    NK_ASSERT(s);
+    if (!s || !len || (nk_size)pos > s->buffer.allocated ||
+        (nk_size)(pos + len) > s->buffer.allocated) return;
+
+    if ((nk_size)(pos + len) < s->buffer.allocated) {
+        /* memmove */
+        char *dst = nk_ptr_add(char, s->buffer.memory.ptr, pos);
+        char *src = nk_ptr_add(char, s->buffer.memory.ptr, pos + len);
+        NK_MEMCPY(dst, src, s->buffer.allocated - (nk_size)(pos + len));
+        NK_ASSERT(((int)s->buffer.allocated - (int)len) >= 0);
+        s->buffer.allocated -= (nk_size)len;
+    } else nk_str_remove_chars(s, len);
+    s->len = nk_utf_len((char *)s->buffer.memory.ptr, (int)s->buffer.allocated);
+}
+NK_API void
+nk_str_delete_runes(struct nk_str *s, int pos, int len)
+{
+    char *temp;
+    nk_rune unicode;
+    char *begin;
+    char *end;
+    int unused;
+
+    NK_ASSERT(s);
+    NK_ASSERT(s->len >= pos + len);
+    if (s->len < pos + len)
+        len = NK_CLAMP(0, (s->len - pos), s->len);
+    if (!len) return;
+
+    temp = (char *)s->buffer.memory.ptr;
+    begin = nk_str_at_rune(s, pos, &unicode, &unused);
+    if (!begin) return;
+    s->buffer.memory.ptr = begin;
+    end = nk_str_at_rune(s, len, &unicode, &unused);
+    s->buffer.memory.ptr = temp;
+    if (!end) return;
+    nk_str_delete_chars(s, (int)(begin - temp), (int)(end - begin));
+}
+NK_API char*
+nk_str_at_char(struct nk_str *s, int pos)
+{
+    NK_ASSERT(s);
+    if (!s || pos > (int)s->buffer.allocated) return 0;
+    return nk_ptr_add(char, s->buffer.memory.ptr, pos);
+}
+NK_API char*
+nk_str_at_rune(struct nk_str *str, int pos, nk_rune *unicode, int *len)
+{
+    int i = 0;
+    int src_len = 0;
+    int glyph_len = 0;
+    char *text;
+    int text_len;
+
+    NK_ASSERT(str);
+    NK_ASSERT(unicode);
+    NK_ASSERT(len);
+
+    if (!str || !unicode || !len) return 0;
+    if (pos < 0) {
+        *unicode = 0;
+        *len = 0;
+        return 0;
+    }
+
+    text = (char*)str->buffer.memory.ptr;
+    text_len = (int)str->buffer.allocated;
+    glyph_len = nk_utf_decode(text, unicode, text_len);
+    while (glyph_len) {
+        if (i == pos) {
+            *len = glyph_len;
+            break;
+        }
+
+        i++;
+        src_len = src_len + glyph_len;
+        glyph_len = nk_utf_decode(text + src_len, unicode, text_len - src_len);
+    }
+    if (i != pos) return 0;
+    return text + src_len;
+}
+NK_API const char*
+nk_str_at_char_const(const struct nk_str *s, int pos)
+{
+    NK_ASSERT(s);
+    if (!s || pos > (int)s->buffer.allocated) return 0;
+    return nk_ptr_add(char, s->buffer.memory.ptr, pos);
+}
+NK_API const char*
+nk_str_at_const(const struct nk_str *str, int pos, nk_rune *unicode, int *len)
+{
+    int i = 0;
+    int src_len = 0;
+    int glyph_len = 0;
+    char *text;
+    int text_len;
+
+    NK_ASSERT(str);
+    NK_ASSERT(unicode);
+    NK_ASSERT(len);
+
+    if (!str || !unicode || !len) return 0;
+    if (pos < 0) {
+        *unicode = 0;
+        *len = 0;
+        return 0;
+    }
+
+    text = (char*)str->buffer.memory.ptr;
+    text_len = (int)str->buffer.allocated;
+    glyph_len = nk_utf_decode(text, unicode, text_len);
+    while (glyph_len) {
+        if (i == pos) {
+            *len = glyph_len;
+            break;
+        }
+
+        i++;
+        src_len = src_len + glyph_len;
+        glyph_len = nk_utf_decode(text + src_len, unicode, text_len - src_len);
+    }
+    if (i != pos) return 0;
+    return text + src_len;
+}
+NK_API nk_rune
+nk_str_rune_at(const struct nk_str *str, int pos)
+{
+    int len;
+    nk_rune unicode = 0;
+    nk_str_at_const(str, pos, &unicode, &len);
+    return unicode;
+}
+NK_API char*
+nk_str_get(struct nk_str *s)
+{
+    NK_ASSERT(s);
+    if (!s || !s->len || !s->buffer.allocated) return 0;
+    return (char*)s->buffer.memory.ptr;
+}
+NK_API const char*
+nk_str_get_const(const struct nk_str *s)
+{
+    NK_ASSERT(s);
+    if (!s || !s->len || !s->buffer.allocated) return 0;
+    return (const char*)s->buffer.memory.ptr;
+}
+NK_API int
+nk_str_len(struct nk_str *s)
+{
+    NK_ASSERT(s);
+    if (!s || !s->len || !s->buffer.allocated) return 0;
+    return s->len;
+}
+NK_API int
+nk_str_len_char(struct nk_str *s)
+{
+    NK_ASSERT(s);
+    if (!s || !s->len || !s->buffer.allocated) return 0;
+    return (int)s->buffer.allocated;
+}
+NK_API void
+nk_str_clear(struct nk_str *str)
+{
+    NK_ASSERT(str);
+    nk_buffer_clear(&str->buffer);
+    str->len = 0;
+}
+NK_API void
+nk_str_free(struct nk_str *str)
+{
+    NK_ASSERT(str);
+    nk_buffer_free(&str->buffer);
+    str->len = 0;
+}
+
+
+
+
+
+/* ==============================================================
+ *
+ *                          DRAW
+ *
+ * ===============================================================*/
+NK_LIB void
+nk_command_buffer_init(struct nk_command_buffer *cb,
+    struct nk_buffer *b, enum nk_command_clipping clip)
+{
+    NK_ASSERT(cb);
+    NK_ASSERT(b);
+    if (!cb || !b) return;
+    cb->base = b;
+    cb->use_clipping = (int)clip;
+    cb->begin = b->allocated;
+    cb->end = b->allocated;
+    cb->last = b->allocated;
+}
+NK_LIB void
+nk_command_buffer_reset(struct nk_command_buffer *b)
+{
+    NK_ASSERT(b);
+    if (!b) return;
+    b->begin = 0;
+    b->end = 0;
+    b->last = 0;
+    b->clip = nk_null_rect;
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+    b->userdata.ptr = 0;
+#endif
+}
+NK_LIB void*
+nk_command_buffer_push(struct nk_command_buffer* b,
+    enum nk_command_type t, nk_size size)
+{
+    NK_STORAGE const nk_size align = NK_ALIGNOF(struct nk_command);
+    struct nk_command *cmd;
+    nk_size alignment;
+    void *unaligned;
+    void *memory;
+
+    NK_ASSERT(b);
+    NK_ASSERT(b->base);
+    if (!b) return 0;
+    cmd = (struct nk_command*)nk_buffer_alloc(b->base,NK_BUFFER_FRONT,size,align);
+    if (!cmd) return 0;
+
+    /* make sure the offset to the next command is aligned */
+    b->last = (nk_size)((nk_byte*)cmd - (nk_byte*)b->base->memory.ptr);
+    unaligned = (nk_byte*)cmd + size;
+    memory = NK_ALIGN_PTR(unaligned, align);
+    alignment = (nk_size)((nk_byte*)memory - (nk_byte*)unaligned);
+#ifdef NK_ZERO_COMMAND_MEMORY
+    NK_MEMSET(cmd, 0, size + alignment);
+#endif
+
+    cmd->type = t;
+    cmd->next = b->base->allocated + alignment;
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+    cmd->userdata = b->userdata;
+#endif
+    b->end = cmd->next;
+    return cmd;
+}
+NK_API void
+nk_push_scissor(struct nk_command_buffer *b, struct nk_rect r)
+{
+    struct nk_command_scissor *cmd;
+    NK_ASSERT(b);
+    if (!b) return;
+
+    b->clip.x = r.x;
+    b->clip.y = r.y;
+    b->clip.w = r.w;
+    b->clip.h = r.h;
+    cmd = (struct nk_command_scissor*)
+        nk_command_buffer_push(b, NK_COMMAND_SCISSOR, sizeof(*cmd));
+
+    if (!cmd) return;
+    cmd->x = (short)r.x;
+    cmd->y = (short)r.y;
+    cmd->w = (unsigned short)NK_MAX(0, r.w);
+    cmd->h = (unsigned short)NK_MAX(0, r.h);
+}
+NK_API void
+nk_stroke_line(struct nk_command_buffer *b, float x0, float y0,
+    float x1, float y1, float line_thickness, struct nk_color c)
+{
+    struct nk_command_line *cmd;
+    NK_ASSERT(b);
+    if (!b || line_thickness <= 0) return;
+    cmd = (struct nk_command_line*)
+        nk_command_buffer_push(b, NK_COMMAND_LINE, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->line_thickness = (unsigned short)line_thickness;
+    cmd->begin.x = (short)x0;
+    cmd->begin.y = (short)y0;
+    cmd->end.x = (short)x1;
+    cmd->end.y = (short)y1;
+    cmd->color = c;
+}
+NK_API void
+nk_stroke_curve(struct nk_command_buffer *b, float ax, float ay,
+    float ctrl0x, float ctrl0y, float ctrl1x, float ctrl1y,
+    float bx, float by, float line_thickness, struct nk_color col)
+{
+    struct nk_command_curve *cmd;
+    NK_ASSERT(b);
+    if (!b || col.a == 0 || line_thickness <= 0) return;
+
+    cmd = (struct nk_command_curve*)
+        nk_command_buffer_push(b, NK_COMMAND_CURVE, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->line_thickness = (unsigned short)line_thickness;
+    cmd->begin.x = (short)ax;
+    cmd->begin.y = (short)ay;
+    cmd->ctrl[0].x = (short)ctrl0x;
+    cmd->ctrl[0].y = (short)ctrl0y;
+    cmd->ctrl[1].x = (short)ctrl1x;
+    cmd->ctrl[1].y = (short)ctrl1y;
+    cmd->end.x = (short)bx;
+    cmd->end.y = (short)by;
+    cmd->color = col;
+}
+NK_API void
+nk_stroke_rect(struct nk_command_buffer *b, struct nk_rect rect,
+    float rounding, float line_thickness, struct nk_color c)
+{
+    struct nk_command_rect *cmd;
+    NK_ASSERT(b);
+    if (!b || c.a == 0 || rect.w == 0 || rect.h == 0 || line_thickness <= 0) return;
+    if (b->use_clipping) {
+        const struct nk_rect *clip = &b->clip;
+        if (!NK_INTERSECT(rect.x, rect.y, rect.w, rect.h,
+            clip->x, clip->y, clip->w, clip->h)) return;
+    }
+    cmd = (struct nk_command_rect*)
+        nk_command_buffer_push(b, NK_COMMAND_RECT, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->rounding = (unsigned short)rounding;
+    cmd->line_thickness = (unsigned short)line_thickness;
+    cmd->x = (short)rect.x;
+    cmd->y = (short)rect.y;
+    cmd->w = (unsigned short)NK_MAX(0, rect.w);
+    cmd->h = (unsigned short)NK_MAX(0, rect.h);
+    cmd->color = c;
+}
+NK_API void
+nk_fill_rect(struct nk_command_buffer *b, struct nk_rect rect,
+    float rounding, struct nk_color c)
+{
+    struct nk_command_rect_filled *cmd;
+    NK_ASSERT(b);
+    if (!b || c.a == 0 || rect.w == 0 || rect.h == 0) return;
+    if (b->use_clipping) {
+        const struct nk_rect *clip = &b->clip;
+        if (!NK_INTERSECT(rect.x, rect.y, rect.w, rect.h,
+            clip->x, clip->y, clip->w, clip->h)) return;
+    }
+
+    cmd = (struct nk_command_rect_filled*)
+        nk_command_buffer_push(b, NK_COMMAND_RECT_FILLED, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->rounding = (unsigned short)rounding;
+    cmd->x = (short)rect.x;
+    cmd->y = (short)rect.y;
+    cmd->w = (unsigned short)NK_MAX(0, rect.w);
+    cmd->h = (unsigned short)NK_MAX(0, rect.h);
+    cmd->color = c;
+}
+NK_API void
+nk_fill_rect_multi_color(struct nk_command_buffer *b, struct nk_rect rect,
+    struct nk_color left, struct nk_color top, struct nk_color right,
+    struct nk_color bottom)
+{
+    struct nk_command_rect_multi_color *cmd;
+    NK_ASSERT(b);
+    if (!b || rect.w == 0 || rect.h == 0) return;
+    if (b->use_clipping) {
+        const struct nk_rect *clip = &b->clip;
+        if (!NK_INTERSECT(rect.x, rect.y, rect.w, rect.h,
+            clip->x, clip->y, clip->w, clip->h)) return;
+    }
+
+    cmd = (struct nk_command_rect_multi_color*)
+        nk_command_buffer_push(b, NK_COMMAND_RECT_MULTI_COLOR, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->x = (short)rect.x;
+    cmd->y = (short)rect.y;
+    cmd->w = (unsigned short)NK_MAX(0, rect.w);
+    cmd->h = (unsigned short)NK_MAX(0, rect.h);
+    cmd->left = left;
+    cmd->top = top;
+    cmd->right = right;
+    cmd->bottom = bottom;
+}
+NK_API void
+nk_stroke_circle(struct nk_command_buffer *b, struct nk_rect r,
+    float line_thickness, struct nk_color c)
+{
+    struct nk_command_circle *cmd;
+    if (!b || r.w == 0 || r.h == 0 || line_thickness <= 0) return;
+    if (b->use_clipping) {
+        const struct nk_rect *clip = &b->clip;
+        if (!NK_INTERSECT(r.x, r.y, r.w, r.h, clip->x, clip->y, clip->w, clip->h))
+            return;
+    }
+
+    cmd = (struct nk_command_circle*)
+        nk_command_buffer_push(b, NK_COMMAND_CIRCLE, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->line_thickness = (unsigned short)line_thickness;
+    cmd->x = (short)r.x;
+    cmd->y = (short)r.y;
+    cmd->w = (unsigned short)NK_MAX(r.w, 0);
+    cmd->h = (unsigned short)NK_MAX(r.h, 0);
+    cmd->color = c;
+}
+NK_API void
+nk_fill_circle(struct nk_command_buffer *b, struct nk_rect r, struct nk_color c)
+{
+    struct nk_command_circle_filled *cmd;
+    NK_ASSERT(b);
+    if (!b || c.a == 0 || r.w == 0 || r.h == 0) return;
+    if (b->use_clipping) {
+        const struct nk_rect *clip = &b->clip;
+        if (!NK_INTERSECT(r.x, r.y, r.w, r.h, clip->x, clip->y, clip->w, clip->h))
+            return;
+    }
+
+    cmd = (struct nk_command_circle_filled*)
+        nk_command_buffer_push(b, NK_COMMAND_CIRCLE_FILLED, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->x = (short)r.x;
+    cmd->y = (short)r.y;
+    cmd->w = (unsigned short)NK_MAX(r.w, 0);
+    cmd->h = (unsigned short)NK_MAX(r.h, 0);
+    cmd->color = c;
+}
+NK_API void
+nk_stroke_arc(struct nk_command_buffer *b, float cx, float cy, float radius,
+    float a_min, float a_max, float line_thickness, struct nk_color c)
+{
+    struct nk_command_arc *cmd;
+    if (!b || c.a == 0 || line_thickness <= 0) return;
+    cmd = (struct nk_command_arc*)
+        nk_command_buffer_push(b, NK_COMMAND_ARC, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->line_thickness = (unsigned short)line_thickness;
+    cmd->cx = (short)cx;
+    cmd->cy = (short)cy;
+    cmd->r = (unsigned short)radius;
+    cmd->a[0] = a_min;
+    cmd->a[1] = a_max;
+    cmd->color = c;
+}
+NK_API void
+nk_fill_arc(struct nk_command_buffer *b, float cx, float cy, float radius,
+    float a_min, float a_max, struct nk_color c)
+{
+    struct nk_command_arc_filled *cmd;
+    NK_ASSERT(b);
+    if (!b || c.a == 0) return;
+    cmd = (struct nk_command_arc_filled*)
+        nk_command_buffer_push(b, NK_COMMAND_ARC_FILLED, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->cx = (short)cx;
+    cmd->cy = (short)cy;
+    cmd->r = (unsigned short)radius;
+    cmd->a[0] = a_min;
+    cmd->a[1] = a_max;
+    cmd->color = c;
+}
+NK_API void
+nk_stroke_triangle(struct nk_command_buffer *b, float x0, float y0, float x1,
+    float y1, float x2, float y2, float line_thickness, struct nk_color c)
+{
+    struct nk_command_triangle *cmd;
+    NK_ASSERT(b);
+    if (!b || c.a == 0 || line_thickness <= 0) return;
+    if (b->use_clipping) {
+        const struct nk_rect *clip = &b->clip;
+        if (!NK_INBOX(x0, y0, clip->x, clip->y, clip->w, clip->h) &&
+            !NK_INBOX(x1, y1, clip->x, clip->y, clip->w, clip->h) &&
+            !NK_INBOX(x2, y2, clip->x, clip->y, clip->w, clip->h))
+            return;
+    }
+
+    cmd = (struct nk_command_triangle*)
+        nk_command_buffer_push(b, NK_COMMAND_TRIANGLE, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->line_thickness = (unsigned short)line_thickness;
+    cmd->a.x = (short)x0;
+    cmd->a.y = (short)y0;
+    cmd->b.x = (short)x1;
+    cmd->b.y = (short)y1;
+    cmd->c.x = (short)x2;
+    cmd->c.y = (short)y2;
+    cmd->color = c;
+}
+NK_API void
+nk_fill_triangle(struct nk_command_buffer *b, float x0, float y0, float x1,
+    float y1, float x2, float y2, struct nk_color c)
+{
+    struct nk_command_triangle_filled *cmd;
+    NK_ASSERT(b);
+    if (!b || c.a == 0) return;
+    if (!b) return;
+    if (b->use_clipping) {
+        const struct nk_rect *clip = &b->clip;
+        if (!NK_INBOX(x0, y0, clip->x, clip->y, clip->w, clip->h) &&
+            !NK_INBOX(x1, y1, clip->x, clip->y, clip->w, clip->h) &&
+            !NK_INBOX(x2, y2, clip->x, clip->y, clip->w, clip->h))
+            return;
+    }
+
+    cmd = (struct nk_command_triangle_filled*)
+        nk_command_buffer_push(b, NK_COMMAND_TRIANGLE_FILLED, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->a.x = (short)x0;
+    cmd->a.y = (short)y0;
+    cmd->b.x = (short)x1;
+    cmd->b.y = (short)y1;
+    cmd->c.x = (short)x2;
+    cmd->c.y = (short)y2;
+    cmd->color = c;
+}
+NK_API void
+nk_stroke_polygon(struct nk_command_buffer *b,  float *points, int point_count,
+    float line_thickness, struct nk_color col)
+{
+    int i;
+    nk_size size = 0;
+    struct nk_command_polygon *cmd;
+
+    NK_ASSERT(b);
+    if (!b || col.a == 0 || line_thickness <= 0) return;
+    size = sizeof(*cmd) + sizeof(short) * 2 * (nk_size)point_count;
+    cmd = (struct nk_command_polygon*) nk_command_buffer_push(b, NK_COMMAND_POLYGON, size);
+    if (!cmd) return;
+    cmd->color = col;
+    cmd->line_thickness = (unsigned short)line_thickness;
+    cmd->point_count = (unsigned short)point_count;
+    for (i = 0; i < point_count; ++i) {
+        cmd->points[i].x = (short)points[i*2];
+        cmd->points[i].y = (short)points[i*2+1];
+    }
+}
+NK_API void
+nk_fill_polygon(struct nk_command_buffer *b, float *points, int point_count,
+    struct nk_color col)
+{
+    int i;
+    nk_size size = 0;
+    struct nk_command_polygon_filled *cmd;
+
+    NK_ASSERT(b);
+    if (!b || col.a == 0) return;
+    size = sizeof(*cmd) + sizeof(short) * 2 * (nk_size)point_count;
+    cmd = (struct nk_command_polygon_filled*)
+        nk_command_buffer_push(b, NK_COMMAND_POLYGON_FILLED, size);
+    if (!cmd) return;
+    cmd->color = col;
+    cmd->point_count = (unsigned short)point_count;
+    for (i = 0; i < point_count; ++i) {
+        cmd->points[i].x = (short)points[i*2+0];
+        cmd->points[i].y = (short)points[i*2+1];
+    }
+}
+NK_API void
+nk_stroke_polyline(struct nk_command_buffer *b, float *points, int point_count,
+    float line_thickness, struct nk_color col)
+{
+    int i;
+    nk_size size = 0;
+    struct nk_command_polyline *cmd;
+
+    NK_ASSERT(b);
+    if (!b || col.a == 0 || line_thickness <= 0) return;
+    size = sizeof(*cmd) + sizeof(short) * 2 * (nk_size)point_count;
+    cmd = (struct nk_command_polyline*) nk_command_buffer_push(b, NK_COMMAND_POLYLINE, size);
+    if (!cmd) return;
+    cmd->color = col;
+    cmd->point_count = (unsigned short)point_count;
+    cmd->line_thickness = (unsigned short)line_thickness;
+    for (i = 0; i < point_count; ++i) {
+        cmd->points[i].x = (short)points[i*2];
+        cmd->points[i].y = (short)points[i*2+1];
+    }
+}
+NK_API void
+nk_draw_image(struct nk_command_buffer *b, struct nk_rect r,
+    const struct nk_image *img, struct nk_color col)
+{
+    struct nk_command_image *cmd;
+    NK_ASSERT(b);
+    if (!b) return;
+    if (b->use_clipping) {
+        const struct nk_rect *c = &b->clip;
+        if (c->w == 0 || c->h == 0 || !NK_INTERSECT(r.x, r.y, r.w, r.h, c->x, c->y, c->w, c->h))
+            return;
+    }
+
+    cmd = (struct nk_command_image*)
+        nk_command_buffer_push(b, NK_COMMAND_IMAGE, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->x = (short)r.x;
+    cmd->y = (short)r.y;
+    cmd->w = (unsigned short)NK_MAX(0, r.w);
+    cmd->h = (unsigned short)NK_MAX(0, r.h);
+    cmd->img = *img;
+    cmd->col = col;
+}
+NK_API void
+nk_push_custom(struct nk_command_buffer *b, struct nk_rect r,
+    nk_command_custom_callback cb, nk_handle usr)
+{
+    struct nk_command_custom *cmd;
+    NK_ASSERT(b);
+    if (!b) return;
+    if (b->use_clipping) {
+        const struct nk_rect *c = &b->clip;
+        if (c->w == 0 || c->h == 0 || !NK_INTERSECT(r.x, r.y, r.w, r.h, c->x, c->y, c->w, c->h))
+            return;
+    }
+
+    cmd = (struct nk_command_custom*)
+        nk_command_buffer_push(b, NK_COMMAND_CUSTOM, sizeof(*cmd));
+    if (!cmd) return;
+    cmd->x = (short)r.x;
+    cmd->y = (short)r.y;
+    cmd->w = (unsigned short)NK_MAX(0, r.w);
+    cmd->h = (unsigned short)NK_MAX(0, r.h);
+    cmd->callback_data = usr;
+    cmd->callback = cb;
+}
+NK_API void
+nk_draw_text(struct nk_command_buffer *b, struct nk_rect r,
+    const char *string, int length, const struct nk_user_font *font,
+    struct nk_color bg, struct nk_color fg)
+{
+    float text_width = 0;
+    struct nk_command_text *cmd;
+
+    NK_ASSERT(b);
+    NK_ASSERT(font);
+    if (!b || !string || !length || (bg.a == 0 && fg.a == 0)) return;
+    if (b->use_clipping) {
+        const struct nk_rect *c = &b->clip;
+        if (c->w == 0 || c->h == 0 || !NK_INTERSECT(r.x, r.y, r.w, r.h, c->x, c->y, c->w, c->h))
+            return;
+    }
+
+    /* make sure text fits inside bounds */
+    text_width = font->width(font->userdata, font->height, string, length);
+    if (text_width > r.w){
+        int glyphs = 0;
+        float txt_width = (float)text_width;
+        length = nk_text_clamp(font, string, length, r.w, &glyphs, &txt_width, 0,0);
+    }
+
+    if (!length) return;
+    cmd = (struct nk_command_text*)
+        nk_command_buffer_push(b, NK_COMMAND_TEXT, sizeof(*cmd) + (nk_size)(length + 1));
+    if (!cmd) return;
+    cmd->x = (short)r.x;
+    cmd->y = (short)r.y;
+    cmd->w = (unsigned short)r.w;
+    cmd->h = (unsigned short)r.h;
+    cmd->background = bg;
+    cmd->foreground = fg;
+    cmd->font = font;
+    cmd->length = length;
+    cmd->height = font->height;
+    NK_MEMCPY(cmd->string, string, (nk_size)length);
+    cmd->string[length] = '\0';
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              VERTEX
+ *
+ * ===============================================================*/
+#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
+NK_API void
+nk_draw_list_init(struct nk_draw_list *list)
+{
+    nk_size i = 0;
+    NK_ASSERT(list);
+    if (!list) return;
+    nk_zero(list, sizeof(*list));
+    for (i = 0; i < NK_LEN(list->circle_vtx); ++i) {
+        const float a = ((float)i / (float)NK_LEN(list->circle_vtx)) * 2 * NK_PI;
+        list->circle_vtx[i].x = (float)NK_COS(a);
+        list->circle_vtx[i].y = (float)NK_SIN(a);
+    }
+}
+NK_API void
+nk_draw_list_setup(struct nk_draw_list *canvas, const struct nk_convert_config *config,
+    struct nk_buffer *cmds, struct nk_buffer *vertices, struct nk_buffer *elements,
+    enum nk_anti_aliasing line_aa, enum nk_anti_aliasing shape_aa)
+{
+    NK_ASSERT(canvas);
+    NK_ASSERT(config);
+    NK_ASSERT(cmds);
+    NK_ASSERT(vertices);
+    NK_ASSERT(elements);
+    if (!canvas || !config || !cmds || !vertices || !elements)
+        return;
+
+    canvas->buffer = cmds;
+    canvas->config = *config;
+    canvas->elements = elements;
+    canvas->vertices = vertices;
+    canvas->line_AA = line_aa;
+    canvas->shape_AA = shape_aa;
+    canvas->clip_rect = nk_null_rect;
+
+    canvas->cmd_offset = 0;
+    canvas->element_count = 0;
+    canvas->vertex_count = 0;
+    canvas->cmd_offset = 0;
+    canvas->cmd_count = 0;
+    canvas->path_count = 0;
+}
+NK_API const struct nk_draw_command*
+nk__draw_list_begin(const struct nk_draw_list *canvas, const struct nk_buffer *buffer)
+{
+    nk_byte *memory;
+    nk_size offset;
+    const struct nk_draw_command *cmd;
+
+    NK_ASSERT(buffer);
+    if (!buffer || !buffer->size || !canvas->cmd_count)
+        return 0;
+
+    memory = (nk_byte*)buffer->memory.ptr;
+    offset = buffer->memory.size - canvas->cmd_offset;
+    cmd = nk_ptr_add(const struct nk_draw_command, memory, offset);
+    return cmd;
+}
+NK_API const struct nk_draw_command*
+nk__draw_list_end(const struct nk_draw_list *canvas, const struct nk_buffer *buffer)
+{
+    nk_size size;
+    nk_size offset;
+    nk_byte *memory;
+    const struct nk_draw_command *end;
+
+    NK_ASSERT(buffer);
+    NK_ASSERT(canvas);
+    if (!buffer || !canvas)
+        return 0;
+
+    memory = (nk_byte*)buffer->memory.ptr;
+    size = buffer->memory.size;
+    offset = size - canvas->cmd_offset;
+    end = nk_ptr_add(const struct nk_draw_command, memory, offset);
+    end -= (canvas->cmd_count-1);
+    return end;
+}
+NK_API const struct nk_draw_command*
+nk__draw_list_next(const struct nk_draw_command *cmd,
+    const struct nk_buffer *buffer, const struct nk_draw_list *canvas)
+{
+    const struct nk_draw_command *end;
+    NK_ASSERT(buffer);
+    NK_ASSERT(canvas);
+    if (!cmd || !buffer || !canvas)
+        return 0;
+
+    end = nk__draw_list_end(canvas, buffer);
+    if (cmd <= end) return 0;
+    return (cmd-1);
+}
+NK_INTERN struct nk_vec2*
+nk_draw_list_alloc_path(struct nk_draw_list *list, int count)
+{
+    struct nk_vec2 *points;
+    NK_STORAGE const nk_size point_align = NK_ALIGNOF(struct nk_vec2);
+    NK_STORAGE const nk_size point_size = sizeof(struct nk_vec2);
+    points = (struct nk_vec2*)
+        nk_buffer_alloc(list->buffer, NK_BUFFER_FRONT,
+                        point_size * (nk_size)count, point_align);
+
+    if (!points) return 0;
+    if (!list->path_offset) {
+        void *memory = nk_buffer_memory(list->buffer);
+        list->path_offset = (unsigned int)((nk_byte*)points - (nk_byte*)memory);
+    }
+    list->path_count += (unsigned int)count;
+    return points;
+}
+NK_INTERN struct nk_vec2
+nk_draw_list_path_last(struct nk_draw_list *list)
+{
+    void *memory;
+    struct nk_vec2 *point;
+    NK_ASSERT(list->path_count);
+    memory = nk_buffer_memory(list->buffer);
+    point = nk_ptr_add(struct nk_vec2, memory, list->path_offset);
+    point += (list->path_count-1);
+    return *point;
+}
+NK_INTERN struct nk_draw_command*
+nk_draw_list_push_command(struct nk_draw_list *list, struct nk_rect clip,
+    nk_handle texture)
+{
+    NK_STORAGE const nk_size cmd_align = NK_ALIGNOF(struct nk_draw_command);
+    NK_STORAGE const nk_size cmd_size = sizeof(struct nk_draw_command);
+    struct nk_draw_command *cmd;
+
+    NK_ASSERT(list);
+    cmd = (struct nk_draw_command*)
+        nk_buffer_alloc(list->buffer, NK_BUFFER_BACK, cmd_size, cmd_align);
+
+    if (!cmd) return 0;
+    if (!list->cmd_count) {
+        nk_byte *memory = (nk_byte*)nk_buffer_memory(list->buffer);
+        nk_size total = nk_buffer_total(list->buffer);
+        memory = nk_ptr_add(nk_byte, memory, total);
+        list->cmd_offset = (nk_size)(memory - (nk_byte*)cmd);
+    }
+
+    cmd->elem_count = 0;
+    cmd->clip_rect = clip;
+    cmd->texture = texture;
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+    cmd->userdata = list->userdata;
+#endif
+
+    list->cmd_count++;
+    list->clip_rect = clip;
+    return cmd;
+}
+NK_INTERN struct nk_draw_command*
+nk_draw_list_command_last(struct nk_draw_list *list)
+{
+    void *memory;
+    nk_size size;
+    struct nk_draw_command *cmd;
+    NK_ASSERT(list->cmd_count);
+
+    memory = nk_buffer_memory(list->buffer);
+    size = nk_buffer_total(list->buffer);
+    cmd = nk_ptr_add(struct nk_draw_command, memory, size - list->cmd_offset);
+    return (cmd - (list->cmd_count-1));
+}
+NK_INTERN void
+nk_draw_list_add_clip(struct nk_draw_list *list, struct nk_rect rect)
+{
+    NK_ASSERT(list);
+    if (!list) return;
+    if (!list->cmd_count) {
+        nk_draw_list_push_command(list, rect, list->config.null.texture);
+    } else {
+        struct nk_draw_command *prev = nk_draw_list_command_last(list);
+        if (prev->elem_count == 0)
+            prev->clip_rect = rect;
+        nk_draw_list_push_command(list, rect, prev->texture);
+    }
+}
+NK_INTERN void
+nk_draw_list_push_image(struct nk_draw_list *list, nk_handle texture)
+{
+    NK_ASSERT(list);
+    if (!list) return;
+    if (!list->cmd_count) {
+        nk_draw_list_push_command(list, nk_null_rect, texture);
+    } else {
+        struct nk_draw_command *prev = nk_draw_list_command_last(list);
+        if (prev->elem_count == 0) {
+            prev->texture = texture;
+        #ifdef NK_INCLUDE_COMMAND_USERDATA
+            prev->userdata = list->userdata;
+        #endif
+    } else if (prev->texture.id != texture.id
+        #ifdef NK_INCLUDE_COMMAND_USERDATA
+            || prev->userdata.id != list->userdata.id
+        #endif
+        ) nk_draw_list_push_command(list, prev->clip_rect, texture);
+    }
+}
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+NK_API void
+nk_draw_list_push_userdata(struct nk_draw_list *list, nk_handle userdata)
+{
+    list->userdata = userdata;
+}
+#endif
+NK_INTERN void*
+nk_draw_list_alloc_vertices(struct nk_draw_list *list, nk_size count)
+{
+    void *vtx;
+    NK_ASSERT(list);
+    if (!list) return 0;
+    vtx = nk_buffer_alloc(list->vertices, NK_BUFFER_FRONT,
+        list->config.vertex_size*count, list->config.vertex_alignment);
+    if (!vtx) return 0;
+    list->vertex_count += (unsigned int)count;
+
+    /* This assert triggers because your are drawing a lot of stuff and nuklear
+     * defined `nk_draw_index` as `nk_ushort` to safe space be default.
+     *
+     * So you reached the maximum number of indicies or rather vertexes.
+     * To solve this issue please change typdef `nk_draw_index` to `nk_uint`
+     * and don't forget to specify the new element size in your drawing
+     * backend (OpenGL, DirectX, ...). For example in OpenGL for `glDrawElements`
+     * instead of specifing `GL_UNSIGNED_SHORT` you have to define `GL_UNSIGNED_INT`.
+     * Sorry for the inconvenience. */
+    if(sizeof(nk_draw_index)==2) NK_ASSERT((list->vertex_count < NK_USHORT_MAX &&
+        "To many verticies for 16-bit vertex indicies. Please read comment above on how to solve this problem"));
+    return vtx;
+}
+NK_INTERN nk_draw_index*
+nk_draw_list_alloc_elements(struct nk_draw_list *list, nk_size count)
+{
+    nk_draw_index *ids;
+    struct nk_draw_command *cmd;
+    NK_STORAGE const nk_size elem_align = NK_ALIGNOF(nk_draw_index);
+    NK_STORAGE const nk_size elem_size = sizeof(nk_draw_index);
+    NK_ASSERT(list);
+    if (!list) return 0;
+
+    ids = (nk_draw_index*)
+        nk_buffer_alloc(list->elements, NK_BUFFER_FRONT, elem_size*count, elem_align);
+    if (!ids) return 0;
+    cmd = nk_draw_list_command_last(list);
+    list->element_count += (unsigned int)count;
+    cmd->elem_count += (unsigned int)count;
+    return ids;
+}
+NK_INTERN int
+nk_draw_vertex_layout_element_is_end_of_layout(
+    const struct nk_draw_vertex_layout_element *element)
+{
+    return (element->attribute == NK_VERTEX_ATTRIBUTE_COUNT ||
+            element->format == NK_FORMAT_COUNT);
+}
+NK_INTERN void
+nk_draw_vertex_color(void *attr, const float *vals,
+    enum nk_draw_vertex_layout_format format)
+{
+    /* if this triggers you tried to provide a value format for a color */
+    float val[4];
+    NK_ASSERT(format >= NK_FORMAT_COLOR_BEGIN);
+    NK_ASSERT(format <= NK_FORMAT_COLOR_END);
+    if (format < NK_FORMAT_COLOR_BEGIN || format > NK_FORMAT_COLOR_END) return;
+
+    val[0] = NK_SATURATE(vals[0]);
+    val[1] = NK_SATURATE(vals[1]);
+    val[2] = NK_SATURATE(vals[2]);
+    val[3] = NK_SATURATE(vals[3]);
+
+    switch (format) {
+    default: NK_ASSERT(0 && "Invalid vertex layout color format"); break;
+    case NK_FORMAT_R8G8B8A8:
+    case NK_FORMAT_R8G8B8: {
+        struct nk_color col = nk_rgba_fv(val);
+        NK_MEMCPY(attr, &col.r, sizeof(col));
+    } break;
+    case NK_FORMAT_B8G8R8A8: {
+        struct nk_color col = nk_rgba_fv(val);
+        struct nk_color bgra = nk_rgba(col.b, col.g, col.r, col.a);
+        NK_MEMCPY(attr, &bgra, sizeof(bgra));
+    } break;
+    case NK_FORMAT_R16G15B16: {
+        nk_ushort col[3];
+        col[0] = (nk_ushort)(val[0]*(float)NK_USHORT_MAX);
+        col[1] = (nk_ushort)(val[1]*(float)NK_USHORT_MAX);
+        col[2] = (nk_ushort)(val[2]*(float)NK_USHORT_MAX);
+        NK_MEMCPY(attr, col, sizeof(col));
+    } break;
+    case NK_FORMAT_R16G15B16A16: {
+        nk_ushort col[4];
+        col[0] = (nk_ushort)(val[0]*(float)NK_USHORT_MAX);
+        col[1] = (nk_ushort)(val[1]*(float)NK_USHORT_MAX);
+        col[2] = (nk_ushort)(val[2]*(float)NK_USHORT_MAX);
+        col[3] = (nk_ushort)(val[3]*(float)NK_USHORT_MAX);
+        NK_MEMCPY(attr, col, sizeof(col));
+    } break;
+    case NK_FORMAT_R32G32B32: {
+        nk_uint col[3];
+        col[0] = (nk_uint)(val[0]*(float)NK_UINT_MAX);
+        col[1] = (nk_uint)(val[1]*(float)NK_UINT_MAX);
+        col[2] = (nk_uint)(val[2]*(float)NK_UINT_MAX);
+        NK_MEMCPY(attr, col, sizeof(col));
+    } break;
+    case NK_FORMAT_R32G32B32A32: {
+        nk_uint col[4];
+        col[0] = (nk_uint)(val[0]*(float)NK_UINT_MAX);
+        col[1] = (nk_uint)(val[1]*(float)NK_UINT_MAX);
+        col[2] = (nk_uint)(val[2]*(float)NK_UINT_MAX);
+        col[3] = (nk_uint)(val[3]*(float)NK_UINT_MAX);
+        NK_MEMCPY(attr, col, sizeof(col));
+    } break;
+    case NK_FORMAT_R32G32B32A32_FLOAT:
+        NK_MEMCPY(attr, val, sizeof(float)*4);
+        break;
+    case NK_FORMAT_R32G32B32A32_DOUBLE: {
+        double col[4];
+        col[0] = (double)val[0];
+        col[1] = (double)val[1];
+        col[2] = (double)val[2];
+        col[3] = (double)val[3];
+        NK_MEMCPY(attr, col, sizeof(col));
+    } break;
+    case NK_FORMAT_RGB32:
+    case NK_FORMAT_RGBA32: {
+        struct nk_color col = nk_rgba_fv(val);
+        nk_uint color = nk_color_u32(col);
+        NK_MEMCPY(attr, &color, sizeof(color));
+    } break; }
+}
+NK_INTERN void
+nk_draw_vertex_element(void *dst, const float *values, int value_count,
+    enum nk_draw_vertex_layout_format format)
+{
+    int value_index;
+    void *attribute = dst;
+    /* if this triggers you tried to provide a color format for a value */
+    NK_ASSERT(format < NK_FORMAT_COLOR_BEGIN);
+    if (format >= NK_FORMAT_COLOR_BEGIN && format <= NK_FORMAT_COLOR_END) return;
+    for (value_index = 0; value_index < value_count; ++value_index) {
+        switch (format) {
+        default: NK_ASSERT(0 && "invalid vertex layout format"); break;
+        case NK_FORMAT_SCHAR: {
+            char value = (char)NK_CLAMP((float)NK_SCHAR_MIN, values[value_index], (float)NK_SCHAR_MAX);
+            NK_MEMCPY(attribute, &value, sizeof(value));
+            attribute = (void*)((char*)attribute + sizeof(char));
+        } break;
+        case NK_FORMAT_SSHORT: {
+            nk_short value = (nk_short)NK_CLAMP((float)NK_SSHORT_MIN, values[value_index], (float)NK_SSHORT_MAX);
+            NK_MEMCPY(attribute, &value, sizeof(value));
+            attribute = (void*)((char*)attribute + sizeof(value));
+        } break;
+        case NK_FORMAT_SINT: {
+            nk_int value = (nk_int)NK_CLAMP((float)NK_SINT_MIN, values[value_index], (float)NK_SINT_MAX);
+            NK_MEMCPY(attribute, &value, sizeof(value));
+            attribute = (void*)((char*)attribute + sizeof(nk_int));
+        } break;
+        case NK_FORMAT_UCHAR: {
+            unsigned char value = (unsigned char)NK_CLAMP((float)NK_UCHAR_MIN, values[value_index], (float)NK_UCHAR_MAX);
+            NK_MEMCPY(attribute, &value, sizeof(value));
+            attribute = (void*)((char*)attribute + sizeof(unsigned char));
+        } break;
+        case NK_FORMAT_USHORT: {
+            nk_ushort value = (nk_ushort)NK_CLAMP((float)NK_USHORT_MIN, values[value_index], (float)NK_USHORT_MAX);
+            NK_MEMCPY(attribute, &value, sizeof(value));
+            attribute = (void*)((char*)attribute + sizeof(value));
+            } break;
+        case NK_FORMAT_UINT: {
+            nk_uint value = (nk_uint)NK_CLAMP((float)NK_UINT_MIN, values[value_index], (float)NK_UINT_MAX);
+            NK_MEMCPY(attribute, &value, sizeof(value));
+            attribute = (void*)((char*)attribute + sizeof(nk_uint));
+        } break;
+        case NK_FORMAT_FLOAT:
+            NK_MEMCPY(attribute, &values[value_index], sizeof(values[value_index]));
+            attribute = (void*)((char*)attribute + sizeof(float));
+            break;
+        case NK_FORMAT_DOUBLE: {
+            double value = (double)values[value_index];
+            NK_MEMCPY(attribute, &value, sizeof(value));
+            attribute = (void*)((char*)attribute + sizeof(double));
+            } break;
+        }
+    }
+}
+NK_INTERN void*
+nk_draw_vertex(void *dst, const struct nk_convert_config *config,
+    struct nk_vec2 pos, struct nk_vec2 uv, struct nk_colorf color)
+{
+    void *result = (void*)((char*)dst + config->vertex_size);
+    const struct nk_draw_vertex_layout_element *elem_iter = config->vertex_layout;
+    while (!nk_draw_vertex_layout_element_is_end_of_layout(elem_iter)) {
+        void *address = (void*)((char*)dst + elem_iter->offset);
+        switch (elem_iter->attribute) {
+        case NK_VERTEX_ATTRIBUTE_COUNT:
+        default: NK_ASSERT(0 && "wrong element attribute"); break;
+        case NK_VERTEX_POSITION: nk_draw_vertex_element(address, &pos.x, 2, elem_iter->format); break;
+        case NK_VERTEX_TEXCOORD: nk_draw_vertex_element(address, &uv.x, 2, elem_iter->format); break;
+        case NK_VERTEX_COLOR: nk_draw_vertex_color(address, &color.r, elem_iter->format); break;
+        }
+        elem_iter++;
+    }
+    return result;
+}
+NK_API void
+nk_draw_list_stroke_poly_line(struct nk_draw_list *list, const struct nk_vec2 *points,
+    const unsigned int points_count, struct nk_color color, enum nk_draw_list_stroke closed,
+    float thickness, enum nk_anti_aliasing aliasing)
+{
+    nk_size count;
+    int thick_line;
+    struct nk_colorf col;
+    struct nk_colorf col_trans;
+    NK_ASSERT(list);
+    if (!list || points_count < 2) return;
+
+    color.a = (nk_byte)((float)color.a * list->config.global_alpha);
+    count = points_count;
+    if (!closed) count = points_count-1;
+    thick_line = thickness > 1.0f;
+
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+    nk_draw_list_push_userdata(list, list->userdata);
+#endif
+
+    color.a = (nk_byte)((float)color.a * list->config.global_alpha);
+    nk_color_fv(&col.r, color);
+    col_trans = col;
+    col_trans.a = 0;
+
+    if (aliasing == NK_ANTI_ALIASING_ON) {
+        /* ANTI-ALIASED STROKE */
+        const float AA_SIZE = 1.0f;
+        NK_STORAGE const nk_size pnt_align = NK_ALIGNOF(struct nk_vec2);
+        NK_STORAGE const nk_size pnt_size = sizeof(struct nk_vec2);
+
+        /* allocate vertices and elements  */
+        nk_size i1 = 0;
+        nk_size vertex_offset;
+        nk_size index = list->vertex_count;
+
+        const nk_size idx_count = (thick_line) ?  (count * 18) : (count * 12);
+        const nk_size vtx_count = (thick_line) ? (points_count * 4): (points_count *3);
+
+        void *vtx = nk_draw_list_alloc_vertices(list, vtx_count);
+        nk_draw_index *ids = nk_draw_list_alloc_elements(list, idx_count);
+
+        nk_size size;
+        struct nk_vec2 *normals, *temp;
+        if (!vtx || !ids) return;
+
+        /* temporary allocate normals + points */
+        vertex_offset = (nk_size)((nk_byte*)vtx - (nk_byte*)list->vertices->memory.ptr);
+        nk_buffer_mark(list->vertices, NK_BUFFER_FRONT);
+        size = pnt_size * ((thick_line) ? 5 : 3) * points_count;
+        normals = (struct nk_vec2*) nk_buffer_alloc(list->vertices, NK_BUFFER_FRONT, size, pnt_align);
+        if (!normals) return;
+        temp = normals + points_count;
+
+        /* make sure vertex pointer is still correct */
+        vtx = (void*)((nk_byte*)list->vertices->memory.ptr + vertex_offset);
+
+        /* calculate normals */
+        for (i1 = 0; i1 < count; ++i1) {
+            const nk_size i2 = ((i1 + 1) == points_count) ? 0 : (i1 + 1);
+            struct nk_vec2 diff = nk_vec2_sub(points[i2], points[i1]);
+            float len;
+
+            /* vec2 inverted length  */
+            len = nk_vec2_len_sqr(diff);
+            if (len != 0.0f)
+                len = nk_inv_sqrt(len);
+            else len = 1.0f;
+
+            diff = nk_vec2_muls(diff, len);
+            normals[i1].x = diff.y;
+            normals[i1].y = -diff.x;
+        }
+
+        if (!closed)
+            normals[points_count-1] = normals[points_count-2];
+
+        if (!thick_line) {
+            nk_size idx1, i;
+            if (!closed) {
+                struct nk_vec2 d;
+                temp[0] = nk_vec2_add(points[0], nk_vec2_muls(normals[0], AA_SIZE));
+                temp[1] = nk_vec2_sub(points[0], nk_vec2_muls(normals[0], AA_SIZE));
+                d = nk_vec2_muls(normals[points_count-1], AA_SIZE);
+                temp[(points_count-1) * 2 + 0] = nk_vec2_add(points[points_count-1], d);
+                temp[(points_count-1) * 2 + 1] = nk_vec2_sub(points[points_count-1], d);
+            }
+
+            /* fill elements */
+            idx1 = index;
+            for (i1 = 0; i1 < count; i1++) {
+                struct nk_vec2 dm;
+                float dmr2;
+                nk_size i2 = ((i1 + 1) == points_count) ? 0 : (i1 + 1);
+                nk_size idx2 = ((i1+1) == points_count) ? index: (idx1 + 3);
+
+                /* average normals */
+                dm = nk_vec2_muls(nk_vec2_add(normals[i1], normals[i2]), 0.5f);
+                dmr2 = dm.x * dm.x + dm.y* dm.y;
+                if (dmr2 > 0.000001f) {
+                    float scale = 1.0f/dmr2;
+                    scale = NK_MIN(100.0f, scale);
+                    dm = nk_vec2_muls(dm, scale);
+                }
+
+                dm = nk_vec2_muls(dm, AA_SIZE);
+                temp[i2*2+0] = nk_vec2_add(points[i2], dm);
+                temp[i2*2+1] = nk_vec2_sub(points[i2], dm);
+
+                ids[0] = (nk_draw_index)(idx2 + 0); ids[1] = (nk_draw_index)(idx1+0);
+                ids[2] = (nk_draw_index)(idx1 + 2); ids[3] = (nk_draw_index)(idx1+2);
+                ids[4] = (nk_draw_index)(idx2 + 2); ids[5] = (nk_draw_index)(idx2+0);
+                ids[6] = (nk_draw_index)(idx2 + 1); ids[7] = (nk_draw_index)(idx1+1);
+                ids[8] = (nk_draw_index)(idx1 + 0); ids[9] = (nk_draw_index)(idx1+0);
+                ids[10]= (nk_draw_index)(idx2 + 0); ids[11]= (nk_draw_index)(idx2+1);
+                ids += 12;
+                idx1 = idx2;
+            }
+
+            /* fill vertices */
+            for (i = 0; i < points_count; ++i) {
+                const struct nk_vec2 uv = list->config.null.uv;
+                vtx = nk_draw_vertex(vtx, &list->config, points[i], uv, col);
+                vtx = nk_draw_vertex(vtx, &list->config, temp[i*2+0], uv, col_trans);
+                vtx = nk_draw_vertex(vtx, &list->config, temp[i*2+1], uv, col_trans);
+            }
+        } else {
+            nk_size idx1, i;
+            const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
+            if (!closed) {
+                struct nk_vec2 d1 = nk_vec2_muls(normals[0], half_inner_thickness + AA_SIZE);
+                struct nk_vec2 d2 = nk_vec2_muls(normals[0], half_inner_thickness);
+
+                temp[0] = nk_vec2_add(points[0], d1);
+                temp[1] = nk_vec2_add(points[0], d2);
+                temp[2] = nk_vec2_sub(points[0], d2);
+                temp[3] = nk_vec2_sub(points[0], d1);
+
+                d1 = nk_vec2_muls(normals[points_count-1], half_inner_thickness + AA_SIZE);
+                d2 = nk_vec2_muls(normals[points_count-1], half_inner_thickness);
+
+                temp[(points_count-1)*4+0] = nk_vec2_add(points[points_count-1], d1);
+                temp[(points_count-1)*4+1] = nk_vec2_add(points[points_count-1], d2);
+                temp[(points_count-1)*4+2] = nk_vec2_sub(points[points_count-1], d2);
+                temp[(points_count-1)*4+3] = nk_vec2_sub(points[points_count-1], d1);
+            }
+
+            /* add all elements */
+            idx1 = index;
+            for (i1 = 0; i1 < count; ++i1) {
+                struct nk_vec2 dm_out, dm_in;
+                const nk_size i2 = ((i1+1) == points_count) ? 0: (i1 + 1);
+                nk_size idx2 = ((i1+1) == points_count) ? index: (idx1 + 4);
+
+                /* average normals */
+                struct nk_vec2 dm = nk_vec2_muls(nk_vec2_add(normals[i1], normals[i2]), 0.5f);
+                float dmr2 = dm.x * dm.x + dm.y* dm.y;
+                if (dmr2 > 0.000001f) {
+                    float scale = 1.0f/dmr2;
+                    scale = NK_MIN(100.0f, scale);
+                    dm = nk_vec2_muls(dm, scale);
+                }
+
+                dm_out = nk_vec2_muls(dm, ((half_inner_thickness) + AA_SIZE));
+                dm_in = nk_vec2_muls(dm, half_inner_thickness);
+                temp[i2*4+0] = nk_vec2_add(points[i2], dm_out);
+                temp[i2*4+1] = nk_vec2_add(points[i2], dm_in);
+                temp[i2*4+2] = nk_vec2_sub(points[i2], dm_in);
+                temp[i2*4+3] = nk_vec2_sub(points[i2], dm_out);
+
+                /* add indexes */
+                ids[0] = (nk_draw_index)(idx2 + 1); ids[1] = (nk_draw_index)(idx1+1);
+                ids[2] = (nk_draw_index)(idx1 + 2); ids[3] = (nk_draw_index)(idx1+2);
+                ids[4] = (nk_draw_index)(idx2 + 2); ids[5] = (nk_draw_index)(idx2+1);
+                ids[6] = (nk_draw_index)(idx2 + 1); ids[7] = (nk_draw_index)(idx1+1);
+                ids[8] = (nk_draw_index)(idx1 + 0); ids[9] = (nk_draw_index)(idx1+0);
+                ids[10]= (nk_draw_index)(idx2 + 0); ids[11] = (nk_draw_index)(idx2+1);
+                ids[12]= (nk_draw_index)(idx2 + 2); ids[13] = (nk_draw_index)(idx1+2);
+                ids[14]= (nk_draw_index)(idx1 + 3); ids[15] = (nk_draw_index)(idx1+3);
+                ids[16]= (nk_draw_index)(idx2 + 3); ids[17] = (nk_draw_index)(idx2+2);
+                ids += 18;
+                idx1 = idx2;
+            }
+
+            /* add vertices */
+            for (i = 0; i < points_count; ++i) {
+                const struct nk_vec2 uv = list->config.null.uv;
+                vtx = nk_draw_vertex(vtx, &list->config, temp[i*4+0], uv, col_trans);
+                vtx = nk_draw_vertex(vtx, &list->config, temp[i*4+1], uv, col);
+                vtx = nk_draw_vertex(vtx, &list->config, temp[i*4+2], uv, col);
+                vtx = nk_draw_vertex(vtx, &list->config, temp[i*4+3], uv, col_trans);
+            }
+        }
+        /* free temporary normals + points */
+        nk_buffer_reset(list->vertices, NK_BUFFER_FRONT);
+    } else {
+        /* NON ANTI-ALIASED STROKE */
+        nk_size i1 = 0;
+        nk_size idx = list->vertex_count;
+        const nk_size idx_count = count * 6;
+        const nk_size vtx_count = count * 4;
+        void *vtx = nk_draw_list_alloc_vertices(list, vtx_count);
+        nk_draw_index *ids = nk_draw_list_alloc_elements(list, idx_count);
+        if (!vtx || !ids) return;
+
+        for (i1 = 0; i1 < count; ++i1) {
+            float dx, dy;
+            const struct nk_vec2 uv = list->config.null.uv;
+            const nk_size i2 = ((i1+1) == points_count) ? 0 : i1 + 1;
+            const struct nk_vec2 p1 = points[i1];
+            const struct nk_vec2 p2 = points[i2];
+            struct nk_vec2 diff = nk_vec2_sub(p2, p1);
+            float len;
+
+            /* vec2 inverted length  */
+            len = nk_vec2_len_sqr(diff);
+            if (len != 0.0f)
+                len = nk_inv_sqrt(len);
+            else len = 1.0f;
+            diff = nk_vec2_muls(diff, len);
+
+            /* add vertices */
+            dx = diff.x * (thickness * 0.5f);
+            dy = diff.y * (thickness * 0.5f);
+
+            vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(p1.x + dy, p1.y - dx), uv, col);
+            vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(p2.x + dy, p2.y - dx), uv, col);
+            vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(p2.x - dy, p2.y + dx), uv, col);
+            vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(p1.x - dy, p1.y + dx), uv, col);
+
+            ids[0] = (nk_draw_index)(idx+0); ids[1] = (nk_draw_index)(idx+1);
+            ids[2] = (nk_draw_index)(idx+2); ids[3] = (nk_draw_index)(idx+0);
+            ids[4] = (nk_draw_index)(idx+2); ids[5] = (nk_draw_index)(idx+3);
+
+            ids += 6;
+            idx += 4;
+        }
+    }
+}
+NK_API void
+nk_draw_list_fill_poly_convex(struct nk_draw_list *list,
+    const struct nk_vec2 *points, const unsigned int points_count,
+    struct nk_color color, enum nk_anti_aliasing aliasing)
+{
+    struct nk_colorf col;
+    struct nk_colorf col_trans;
+
+    NK_STORAGE const nk_size pnt_align = NK_ALIGNOF(struct nk_vec2);
+    NK_STORAGE const nk_size pnt_size = sizeof(struct nk_vec2);
+    NK_ASSERT(list);
+    if (!list || points_count < 3) return;
+
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+    nk_draw_list_push_userdata(list, list->userdata);
+#endif
+
+    color.a = (nk_byte)((float)color.a * list->config.global_alpha);
+    nk_color_fv(&col.r, color);
+    col_trans = col;
+    col_trans.a = 0;
+
+    if (aliasing == NK_ANTI_ALIASING_ON) {
+        nk_size i = 0;
+        nk_size i0 = 0;
+        nk_size i1 = 0;
+
+        const float AA_SIZE = 1.0f;
+        nk_size vertex_offset = 0;
+        nk_size index = list->vertex_count;
+
+        const nk_size idx_count = (points_count-2)*3 + points_count*6;
+        const nk_size vtx_count = (points_count*2);
+
+        void *vtx = nk_draw_list_alloc_vertices(list, vtx_count);
+        nk_draw_index *ids = nk_draw_list_alloc_elements(list, idx_count);
+
+        nk_size size = 0;
+        struct nk_vec2 *normals = 0;
+        unsigned int vtx_inner_idx = (unsigned int)(index + 0);
+        unsigned int vtx_outer_idx = (unsigned int)(index + 1);
+        if (!vtx || !ids) return;
+
+        /* temporary allocate normals */
+        vertex_offset = (nk_size)((nk_byte*)vtx - (nk_byte*)list->vertices->memory.ptr);
+        nk_buffer_mark(list->vertices, NK_BUFFER_FRONT);
+        size = pnt_size * points_count;
+        normals = (struct nk_vec2*) nk_buffer_alloc(list->vertices, NK_BUFFER_FRONT, size, pnt_align);
+        if (!normals) return;
+        vtx = (void*)((nk_byte*)list->vertices->memory.ptr + vertex_offset);
+
+        /* add elements */
+        for (i = 2; i < points_count; i++) {
+            ids[0] = (nk_draw_index)(vtx_inner_idx);
+            ids[1] = (nk_draw_index)(vtx_inner_idx + ((i-1) << 1));
+            ids[2] = (nk_draw_index)(vtx_inner_idx + (i << 1));
+            ids += 3;
+        }
+
+        /* compute normals */
+        for (i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++) {
+            struct nk_vec2 p0 = points[i0];
+            struct nk_vec2 p1 = points[i1];
+            struct nk_vec2 diff = nk_vec2_sub(p1, p0);
+
+            /* vec2 inverted length  */
+            float len = nk_vec2_len_sqr(diff);
+            if (len != 0.0f)
+                len = nk_inv_sqrt(len);
+            else len = 1.0f;
+            diff = nk_vec2_muls(diff, len);
+
+            normals[i0].x = diff.y;
+            normals[i0].y = -diff.x;
+        }
+
+        /* add vertices + indexes */
+        for (i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++) {
+            const struct nk_vec2 uv = list->config.null.uv;
+            struct nk_vec2 n0 = normals[i0];
+            struct nk_vec2 n1 = normals[i1];
+            struct nk_vec2 dm = nk_vec2_muls(nk_vec2_add(n0, n1), 0.5f);
+            float dmr2 = dm.x*dm.x + dm.y*dm.y;
+            if (dmr2 > 0.000001f) {
+                float scale = 1.0f / dmr2;
+                scale = NK_MIN(scale, 100.0f);
+                dm = nk_vec2_muls(dm, scale);
+            }
+            dm = nk_vec2_muls(dm, AA_SIZE * 0.5f);
+
+            /* add vertices */
+            vtx = nk_draw_vertex(vtx, &list->config, nk_vec2_sub(points[i1], dm), uv, col);
+            vtx = nk_draw_vertex(vtx, &list->config, nk_vec2_add(points[i1], dm), uv, col_trans);
+
+            /* add indexes */
+            ids[0] = (nk_draw_index)(vtx_inner_idx+(i1<<1));
+            ids[1] = (nk_draw_index)(vtx_inner_idx+(i0<<1));
+            ids[2] = (nk_draw_index)(vtx_outer_idx+(i0<<1));
+            ids[3] = (nk_draw_index)(vtx_outer_idx+(i0<<1));
+            ids[4] = (nk_draw_index)(vtx_outer_idx+(i1<<1));
+            ids[5] = (nk_draw_index)(vtx_inner_idx+(i1<<1));
+            ids += 6;
+        }
+        /* free temporary normals + points */
+        nk_buffer_reset(list->vertices, NK_BUFFER_FRONT);
+    } else {
+        nk_size i = 0;
+        nk_size index = list->vertex_count;
+        const nk_size idx_count = (points_count-2)*3;
+        const nk_size vtx_count = points_count;
+        void *vtx = nk_draw_list_alloc_vertices(list, vtx_count);
+        nk_draw_index *ids = nk_draw_list_alloc_elements(list, idx_count);
+
+        if (!vtx || !ids) return;
+        for (i = 0; i < vtx_count; ++i)
+            vtx = nk_draw_vertex(vtx, &list->config, points[i], list->config.null.uv, col);
+        for (i = 2; i < points_count; ++i) {
+            ids[0] = (nk_draw_index)index;
+            ids[1] = (nk_draw_index)(index+ i - 1);
+            ids[2] = (nk_draw_index)(index+i);
+            ids += 3;
+        }
+    }
+}
+NK_API void
+nk_draw_list_path_clear(struct nk_draw_list *list)
+{
+    NK_ASSERT(list);
+    if (!list) return;
+    nk_buffer_reset(list->buffer, NK_BUFFER_FRONT);
+    list->path_count = 0;
+    list->path_offset = 0;
+}
+NK_API void
+nk_draw_list_path_line_to(struct nk_draw_list *list, struct nk_vec2 pos)
+{
+    struct nk_vec2 *points = 0;
+    struct nk_draw_command *cmd = 0;
+    NK_ASSERT(list);
+    if (!list) return;
+    if (!list->cmd_count)
+        nk_draw_list_add_clip(list, nk_null_rect);
+
+    cmd = nk_draw_list_command_last(list);
+    if (cmd && cmd->texture.ptr != list->config.null.texture.ptr)
+        nk_draw_list_push_image(list, list->config.null.texture);
+
+    points = nk_draw_list_alloc_path(list, 1);
+    if (!points) return;
+    points[0] = pos;
+}
+NK_API void
+nk_draw_list_path_arc_to_fast(struct nk_draw_list *list, struct nk_vec2 center,
+    float radius, int a_min, int a_max)
+{
+    int a = 0;
+    NK_ASSERT(list);
+    if (!list) return;
+    if (a_min <= a_max) {
+        for (a = a_min; a <= a_max; a++) {
+            const struct nk_vec2 c = list->circle_vtx[(nk_size)a % NK_LEN(list->circle_vtx)];
+            const float x = center.x + c.x * radius;
+            const float y = center.y + c.y * radius;
+            nk_draw_list_path_line_to(list, nk_vec2(x, y));
+        }
+    }
+}
+NK_API void
+nk_draw_list_path_arc_to(struct nk_draw_list *list, struct nk_vec2 center,
+    float radius, float a_min, float a_max, unsigned int segments)
+{
+    unsigned int i = 0;
+    NK_ASSERT(list);
+    if (!list) return;
+    if (radius == 0.0f) return;
+
+    /*  This algorithm for arc drawing relies on these two trigonometric identities[1]:
+            sin(a + b) = sin(a) * cos(b) + cos(a) * sin(b)
+            cos(a + b) = cos(a) * cos(b) - sin(a) * sin(b)
+
+        Two coordinates (x, y) of a point on a circle centered on
+        the origin can be written in polar form as:
+            x = r * cos(a)
+            y = r * sin(a)
+        where r is the radius of the circle,
+            a is the angle between (x, y) and the origin.
+
+        This allows us to rotate the coordinates around the
+        origin by an angle b using the following transformation:
+            x' = r * cos(a + b) = x * cos(b) - y * sin(b)
+            y' = r * sin(a + b) = y * cos(b) + x * sin(b)
+
+        [1] https://en.wikipedia.org/wiki/List_of_trigonometric_identities#Angle_sum_and_difference_identities
+    */
+    {const float d_angle = (a_max - a_min) / (float)segments;
+    const float sin_d = (float)NK_SIN(d_angle);
+    const float cos_d = (float)NK_COS(d_angle);
+
+    float cx = (float)NK_COS(a_min) * radius;
+    float cy = (float)NK_SIN(a_min) * radius;
+    for(i = 0; i <= segments; ++i) {
+        float new_cx, new_cy;
+        const float x = center.x + cx;
+        const float y = center.y + cy;
+        nk_draw_list_path_line_to(list, nk_vec2(x, y));
+
+        new_cx = cx * cos_d - cy * sin_d;
+        new_cy = cy * cos_d + cx * sin_d;
+        cx = new_cx;
+        cy = new_cy;
+    }}
+}
+NK_API void
+nk_draw_list_path_rect_to(struct nk_draw_list *list, struct nk_vec2 a,
+    struct nk_vec2 b, float rounding)
+{
+    float r;
+    NK_ASSERT(list);
+    if (!list) return;
+    r = rounding;
+    r = NK_MIN(r, ((b.x-a.x) < 0) ? -(b.x-a.x): (b.x-a.x));
+    r = NK_MIN(r, ((b.y-a.y) < 0) ? -(b.y-a.y): (b.y-a.y));
+
+    if (r == 0.0f) {
+        nk_draw_list_path_line_to(list, a);
+        nk_draw_list_path_line_to(list, nk_vec2(b.x,a.y));
+        nk_draw_list_path_line_to(list, b);
+        nk_draw_list_path_line_to(list, nk_vec2(a.x,b.y));
+    } else {
+        nk_draw_list_path_arc_to_fast(list, nk_vec2(a.x + r, a.y + r), r, 6, 9);
+        nk_draw_list_path_arc_to_fast(list, nk_vec2(b.x - r, a.y + r), r, 9, 12);
+        nk_draw_list_path_arc_to_fast(list, nk_vec2(b.x - r, b.y - r), r, 0, 3);
+        nk_draw_list_path_arc_to_fast(list, nk_vec2(a.x + r, b.y - r), r, 3, 6);
+    }
+}
+NK_API void
+nk_draw_list_path_curve_to(struct nk_draw_list *list, struct nk_vec2 p2,
+    struct nk_vec2 p3, struct nk_vec2 p4, unsigned int num_segments)
+{
+    float t_step;
+    unsigned int i_step;
+    struct nk_vec2 p1;
+
+    NK_ASSERT(list);
+    NK_ASSERT(list->path_count);
+    if (!list || !list->path_count) return;
+    num_segments = NK_MAX(num_segments, 1);
+
+    p1 = nk_draw_list_path_last(list);
+    t_step = 1.0f/(float)num_segments;
+    for (i_step = 1; i_step <= num_segments; ++i_step) {
+        float t = t_step * (float)i_step;
+        float u = 1.0f - t;
+        float w1 = u*u*u;
+        float w2 = 3*u*u*t;
+        float w3 = 3*u*t*t;
+        float w4 = t * t *t;
+        float x = w1 * p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x;
+        float y = w1 * p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y;
+        nk_draw_list_path_line_to(list, nk_vec2(x,y));
+    }
+}
+NK_API void
+nk_draw_list_path_fill(struct nk_draw_list *list, struct nk_color color)
+{
+    struct nk_vec2 *points;
+    NK_ASSERT(list);
+    if (!list) return;
+    points = (struct nk_vec2*)nk_buffer_memory(list->buffer);
+    nk_draw_list_fill_poly_convex(list, points, list->path_count, color, list->config.shape_AA);
+    nk_draw_list_path_clear(list);
+}
+NK_API void
+nk_draw_list_path_stroke(struct nk_draw_list *list, struct nk_color color,
+    enum nk_draw_list_stroke closed, float thickness)
+{
+    struct nk_vec2 *points;
+    NK_ASSERT(list);
+    if (!list) return;
+    points = (struct nk_vec2*)nk_buffer_memory(list->buffer);
+    nk_draw_list_stroke_poly_line(list, points, list->path_count, color,
+        closed, thickness, list->config.line_AA);
+    nk_draw_list_path_clear(list);
+}
+NK_API void
+nk_draw_list_stroke_line(struct nk_draw_list *list, struct nk_vec2 a,
+    struct nk_vec2 b, struct nk_color col, float thickness)
+{
+    NK_ASSERT(list);
+    if (!list || !col.a) return;
+    if (list->line_AA == NK_ANTI_ALIASING_ON) {
+        nk_draw_list_path_line_to(list, a);
+        nk_draw_list_path_line_to(list, b);
+    } else {
+        nk_draw_list_path_line_to(list, nk_vec2_sub(a,nk_vec2(0.5f,0.5f)));
+        nk_draw_list_path_line_to(list, nk_vec2_sub(b,nk_vec2(0.5f,0.5f)));
+    }
+    nk_draw_list_path_stroke(list,  col, NK_STROKE_OPEN, thickness);
+}
+NK_API void
+nk_draw_list_fill_rect(struct nk_draw_list *list, struct nk_rect rect,
+    struct nk_color col, float rounding)
+{
+    NK_ASSERT(list);
+    if (!list || !col.a) return;
+
+    if (list->line_AA == NK_ANTI_ALIASING_ON) {
+        nk_draw_list_path_rect_to(list, nk_vec2(rect.x, rect.y),
+            nk_vec2(rect.x + rect.w, rect.y + rect.h), rounding);
+    } else {
+        nk_draw_list_path_rect_to(list, nk_vec2(rect.x-0.5f, rect.y-0.5f),
+            nk_vec2(rect.x + rect.w, rect.y + rect.h), rounding);
+    } nk_draw_list_path_fill(list,  col);
+}
+NK_API void
+nk_draw_list_stroke_rect(struct nk_draw_list *list, struct nk_rect rect,
+    struct nk_color col, float rounding, float thickness)
+{
+    NK_ASSERT(list);
+    if (!list || !col.a) return;
+    if (list->line_AA == NK_ANTI_ALIASING_ON) {
+        nk_draw_list_path_rect_to(list, nk_vec2(rect.x, rect.y),
+            nk_vec2(rect.x + rect.w, rect.y + rect.h), rounding);
+    } else {
+        nk_draw_list_path_rect_to(list, nk_vec2(rect.x-0.5f, rect.y-0.5f),
+            nk_vec2(rect.x + rect.w, rect.y + rect.h), rounding);
+    } nk_draw_list_path_stroke(list,  col, NK_STROKE_CLOSED, thickness);
+}
+NK_API void
+nk_draw_list_fill_rect_multi_color(struct nk_draw_list *list, struct nk_rect rect,
+    struct nk_color left, struct nk_color top, struct nk_color right,
+    struct nk_color bottom)
+{
+    void *vtx;
+    struct nk_colorf col_left, col_top;
+    struct nk_colorf col_right, col_bottom;
+    nk_draw_index *idx;
+    nk_draw_index index;
+
+    nk_color_fv(&col_left.r, left);
+    nk_color_fv(&col_right.r, right);
+    nk_color_fv(&col_top.r, top);
+    nk_color_fv(&col_bottom.r, bottom);
+
+    NK_ASSERT(list);
+    if (!list) return;
+
+    nk_draw_list_push_image(list, list->config.null.texture);
+    index = (nk_draw_index)list->vertex_count;
+    vtx = nk_draw_list_alloc_vertices(list, 4);
+    idx = nk_draw_list_alloc_elements(list, 6);
+    if (!vtx || !idx) return;
+
+    idx[0] = (nk_draw_index)(index+0); idx[1] = (nk_draw_index)(index+1);
+    idx[2] = (nk_draw_index)(index+2); idx[3] = (nk_draw_index)(index+0);
+    idx[4] = (nk_draw_index)(index+2); idx[5] = (nk_draw_index)(index+3);
+
+    vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(rect.x, rect.y), list->config.null.uv, col_left);
+    vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(rect.x + rect.w, rect.y), list->config.null.uv, col_top);
+    vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(rect.x + rect.w, rect.y + rect.h), list->config.null.uv, col_right);
+    vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(rect.x, rect.y + rect.h), list->config.null.uv, col_bottom);
+}
+NK_API void
+nk_draw_list_fill_triangle(struct nk_draw_list *list, struct nk_vec2 a,
+    struct nk_vec2 b, struct nk_vec2 c, struct nk_color col)
+{
+    NK_ASSERT(list);
+    if (!list || !col.a) return;
+    nk_draw_list_path_line_to(list, a);
+    nk_draw_list_path_line_to(list, b);
+    nk_draw_list_path_line_to(list, c);
+    nk_draw_list_path_fill(list, col);
+}
+NK_API void
+nk_draw_list_stroke_triangle(struct nk_draw_list *list, struct nk_vec2 a,
+    struct nk_vec2 b, struct nk_vec2 c, struct nk_color col, float thickness)
+{
+    NK_ASSERT(list);
+    if (!list || !col.a) return;
+    nk_draw_list_path_line_to(list, a);
+    nk_draw_list_path_line_to(list, b);
+    nk_draw_list_path_line_to(list, c);
+    nk_draw_list_path_stroke(list, col, NK_STROKE_CLOSED, thickness);
+}
+NK_API void
+nk_draw_list_fill_circle(struct nk_draw_list *list, struct nk_vec2 center,
+    float radius, struct nk_color col, unsigned int segs)
+{
+    float a_max;
+    NK_ASSERT(list);
+    if (!list || !col.a) return;
+    a_max = NK_PI * 2.0f * ((float)segs - 1.0f) / (float)segs;
+    nk_draw_list_path_arc_to(list, center, radius, 0.0f, a_max, segs);
+    nk_draw_list_path_fill(list, col);
+}
+NK_API void
+nk_draw_list_stroke_circle(struct nk_draw_list *list, struct nk_vec2 center,
+    float radius, struct nk_color col, unsigned int segs, float thickness)
+{
+    float a_max;
+    NK_ASSERT(list);
+    if (!list || !col.a) return;
+    a_max = NK_PI * 2.0f * ((float)segs - 1.0f) / (float)segs;
+    nk_draw_list_path_arc_to(list, center, radius, 0.0f, a_max, segs);
+    nk_draw_list_path_stroke(list, col, NK_STROKE_CLOSED, thickness);
+}
+NK_API void
+nk_draw_list_stroke_curve(struct nk_draw_list *list, struct nk_vec2 p0,
+    struct nk_vec2 cp0, struct nk_vec2 cp1, struct nk_vec2 p1,
+    struct nk_color col, unsigned int segments, float thickness)
+{
+    NK_ASSERT(list);
+    if (!list || !col.a) return;
+    nk_draw_list_path_line_to(list, p0);
+    nk_draw_list_path_curve_to(list, cp0, cp1, p1, segments);
+    nk_draw_list_path_stroke(list, col, NK_STROKE_OPEN, thickness);
+}
+NK_INTERN void
+nk_draw_list_push_rect_uv(struct nk_draw_list *list, struct nk_vec2 a,
+    struct nk_vec2 c, struct nk_vec2 uva, struct nk_vec2 uvc,
+    struct nk_color color)
+{
+    void *vtx;
+    struct nk_vec2 uvb;
+    struct nk_vec2 uvd;
+    struct nk_vec2 b;
+    struct nk_vec2 d;
+
+    struct nk_colorf col;
+    nk_draw_index *idx;
+    nk_draw_index index;
+    NK_ASSERT(list);
+    if (!list) return;
+
+    nk_color_fv(&col.r, color);
+    uvb = nk_vec2(uvc.x, uva.y);
+    uvd = nk_vec2(uva.x, uvc.y);
+    b = nk_vec2(c.x, a.y);
+    d = nk_vec2(a.x, c.y);
+
+    index = (nk_draw_index)list->vertex_count;
+    vtx = nk_draw_list_alloc_vertices(list, 4);
+    idx = nk_draw_list_alloc_elements(list, 6);
+    if (!vtx || !idx) return;
+
+    idx[0] = (nk_draw_index)(index+0); idx[1] = (nk_draw_index)(index+1);
+    idx[2] = (nk_draw_index)(index+2); idx[3] = (nk_draw_index)(index+0);
+    idx[4] = (nk_draw_index)(index+2); idx[5] = (nk_draw_index)(index+3);
+
+    vtx = nk_draw_vertex(vtx, &list->config, a, uva, col);
+    vtx = nk_draw_vertex(vtx, &list->config, b, uvb, col);
+    vtx = nk_draw_vertex(vtx, &list->config, c, uvc, col);
+    vtx = nk_draw_vertex(vtx, &list->config, d, uvd, col);
+}
+NK_API void
+nk_draw_list_add_image(struct nk_draw_list *list, struct nk_image texture,
+    struct nk_rect rect, struct nk_color color)
+{
+    NK_ASSERT(list);
+    if (!list) return;
+    /* push new command with given texture */
+    nk_draw_list_push_image(list, texture.handle);
+    if (nk_image_is_subimage(&texture)) {
+        /* add region inside of the texture  */
+        struct nk_vec2 uv[2];
+        uv[0].x = (float)texture.region[0]/(float)texture.w;
+        uv[0].y = (float)texture.region[1]/(float)texture.h;
+        uv[1].x = (float)(texture.region[0] + texture.region[2])/(float)texture.w;
+        uv[1].y = (float)(texture.region[1] + texture.region[3])/(float)texture.h;
+        nk_draw_list_push_rect_uv(list, nk_vec2(rect.x, rect.y),
+            nk_vec2(rect.x + rect.w, rect.y + rect.h),  uv[0], uv[1], color);
+    } else nk_draw_list_push_rect_uv(list, nk_vec2(rect.x, rect.y),
+            nk_vec2(rect.x + rect.w, rect.y + rect.h),
+            nk_vec2(0.0f, 0.0f), nk_vec2(1.0f, 1.0f),color);
+}
+NK_API void
+nk_draw_list_add_text(struct nk_draw_list *list, const struct nk_user_font *font,
+    struct nk_rect rect, const char *text, int len, float font_height,
+    struct nk_color fg)
+{
+    float x = 0;
+    int text_len = 0;
+    nk_rune unicode = 0;
+    nk_rune next = 0;
+    int glyph_len = 0;
+    int next_glyph_len = 0;
+    struct nk_user_font_glyph g;
+
+    NK_ASSERT(list);
+    if (!list || !len || !text) return;
+    if (!NK_INTERSECT(rect.x, rect.y, rect.w, rect.h,
+        list->clip_rect.x, list->clip_rect.y, list->clip_rect.w, list->clip_rect.h)) return;
+
+    nk_draw_list_push_image(list, font->texture);
+    x = rect.x;
+    glyph_len = nk_utf_decode(text, &unicode, len);
+    if (!glyph_len) return;
+
+    /* draw every glyph image */
+    fg.a = (nk_byte)((float)fg.a * list->config.global_alpha);
+    while (text_len < len && glyph_len) {
+        float gx, gy, gh, gw;
+        float char_width = 0;
+        if (unicode == NK_UTF_INVALID) break;
+
+        /* query currently drawn glyph information */
+        next_glyph_len = nk_utf_decode(text + text_len + glyph_len, &next, (int)len - text_len);
+        font->query(font->userdata, font_height, &g, unicode,
+                    (next == NK_UTF_INVALID) ? '\0' : next);
+
+        /* calculate and draw glyph drawing rectangle and image */
+        gx = x + g.offset.x;
+        gy = rect.y + g.offset.y;
+        gw = g.width; gh = g.height;
+        char_width = g.xadvance;
+        nk_draw_list_push_rect_uv(list, nk_vec2(gx,gy), nk_vec2(gx + gw, gy+ gh),
+            g.uv[0], g.uv[1], fg);
+
+        /* offset next glyph */
+        text_len += glyph_len;
+        x += char_width;
+        glyph_len = next_glyph_len;
+        unicode = next;
+    }
+}
+NK_API nk_flags
+nk_convert(struct nk_context *ctx, struct nk_buffer *cmds,
+    struct nk_buffer *vertices, struct nk_buffer *elements,
+    const struct nk_convert_config *config)
+{
+    nk_flags res = NK_CONVERT_SUCCESS;
+    const struct nk_command *cmd;
+    NK_ASSERT(ctx);
+    NK_ASSERT(cmds);
+    NK_ASSERT(vertices);
+    NK_ASSERT(elements);
+    NK_ASSERT(config);
+    NK_ASSERT(config->vertex_layout);
+    NK_ASSERT(config->vertex_size);
+    if (!ctx || !cmds || !vertices || !elements || !config || !config->vertex_layout)
+        return NK_CONVERT_INVALID_PARAM;
+
+    nk_draw_list_setup(&ctx->draw_list, config, cmds, vertices, elements,
+        config->line_AA, config->shape_AA);
+    nk_foreach(cmd, ctx)
+    {
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+        ctx->draw_list.userdata = cmd->userdata;
+#endif
+        switch (cmd->type) {
+        case NK_COMMAND_NOP: break;
+        case NK_COMMAND_SCISSOR: {
+            const struct nk_command_scissor *s = (const struct nk_command_scissor*)cmd;
+            nk_draw_list_add_clip(&ctx->draw_list, nk_rect(s->x, s->y, s->w, s->h));
+        } break;
+        case NK_COMMAND_LINE: {
+            const struct nk_command_line *l = (const struct nk_command_line*)cmd;
+            nk_draw_list_stroke_line(&ctx->draw_list, nk_vec2(l->begin.x, l->begin.y),
+                nk_vec2(l->end.x, l->end.y), l->color, l->line_thickness);
+        } break;
+        case NK_COMMAND_CURVE: {
+            const struct nk_command_curve *q = (const struct nk_command_curve*)cmd;
+            nk_draw_list_stroke_curve(&ctx->draw_list, nk_vec2(q->begin.x, q->begin.y),
+                nk_vec2(q->ctrl[0].x, q->ctrl[0].y), nk_vec2(q->ctrl[1].x,
+                q->ctrl[1].y), nk_vec2(q->end.x, q->end.y), q->color,
+                config->curve_segment_count, q->line_thickness);
+        } break;
+        case NK_COMMAND_RECT: {
+            const struct nk_command_rect *r = (const struct nk_command_rect*)cmd;
+            nk_draw_list_stroke_rect(&ctx->draw_list, nk_rect(r->x, r->y, r->w, r->h),
+                r->color, (float)r->rounding, r->line_thickness);
+        } break;
+        case NK_COMMAND_RECT_FILLED: {
+            const struct nk_command_rect_filled *r = (const struct nk_command_rect_filled*)cmd;
+            nk_draw_list_fill_rect(&ctx->draw_list, nk_rect(r->x, r->y, r->w, r->h),
+                r->color, (float)r->rounding);
+        } break;
+        case NK_COMMAND_RECT_MULTI_COLOR: {
+            const struct nk_command_rect_multi_color *r = (const struct nk_command_rect_multi_color*)cmd;
+            nk_draw_list_fill_rect_multi_color(&ctx->draw_list, nk_rect(r->x, r->y, r->w, r->h),
+                r->left, r->top, r->right, r->bottom);
+        } break;
+        case NK_COMMAND_CIRCLE: {
+            const struct nk_command_circle *c = (const struct nk_command_circle*)cmd;
+            nk_draw_list_stroke_circle(&ctx->draw_list, nk_vec2((float)c->x + (float)c->w/2,
+                (float)c->y + (float)c->h/2), (float)c->w/2, c->color,
+                config->circle_segment_count, c->line_thickness);
+        } break;
+        case NK_COMMAND_CIRCLE_FILLED: {
+            const struct nk_command_circle_filled *c = (const struct nk_command_circle_filled *)cmd;
+            nk_draw_list_fill_circle(&ctx->draw_list, nk_vec2((float)c->x + (float)c->w/2,
+                (float)c->y + (float)c->h/2), (float)c->w/2, c->color,
+                config->circle_segment_count);
+        } break;
+        case NK_COMMAND_ARC: {
+            const struct nk_command_arc *c = (const struct nk_command_arc*)cmd;
+            nk_draw_list_path_line_to(&ctx->draw_list, nk_vec2(c->cx, c->cy));
+            nk_draw_list_path_arc_to(&ctx->draw_list, nk_vec2(c->cx, c->cy), c->r,
+                c->a[0], c->a[1], config->arc_segment_count);
+            nk_draw_list_path_stroke(&ctx->draw_list, c->color, NK_STROKE_CLOSED, c->line_thickness);
+        } break;
+        case NK_COMMAND_ARC_FILLED: {
+            const struct nk_command_arc_filled *c = (const struct nk_command_arc_filled*)cmd;
+            nk_draw_list_path_line_to(&ctx->draw_list, nk_vec2(c->cx, c->cy));
+            nk_draw_list_path_arc_to(&ctx->draw_list, nk_vec2(c->cx, c->cy), c->r,
+                c->a[0], c->a[1], config->arc_segment_count);
+            nk_draw_list_path_fill(&ctx->draw_list, c->color);
+        } break;
+        case NK_COMMAND_TRIANGLE: {
+            const struct nk_command_triangle *t = (const struct nk_command_triangle*)cmd;
+            nk_draw_list_stroke_triangle(&ctx->draw_list, nk_vec2(t->a.x, t->a.y),
+                nk_vec2(t->b.x, t->b.y), nk_vec2(t->c.x, t->c.y), t->color,
+                t->line_thickness);
+        } break;
+        case NK_COMMAND_TRIANGLE_FILLED: {
+            const struct nk_command_triangle_filled *t = (const struct nk_command_triangle_filled*)cmd;
+            nk_draw_list_fill_triangle(&ctx->draw_list, nk_vec2(t->a.x, t->a.y),
+                nk_vec2(t->b.x, t->b.y), nk_vec2(t->c.x, t->c.y), t->color);
+        } break;
+        case NK_COMMAND_POLYGON: {
+            int i;
+            const struct nk_command_polygon*p = (const struct nk_command_polygon*)cmd;
+            for (i = 0; i < p->point_count; ++i) {
+                struct nk_vec2 pnt = nk_vec2((float)p->points[i].x, (float)p->points[i].y);
+                nk_draw_list_path_line_to(&ctx->draw_list, pnt);
+            }
+            nk_draw_list_path_stroke(&ctx->draw_list, p->color, NK_STROKE_CLOSED, p->line_thickness);
+        } break;
+        case NK_COMMAND_POLYGON_FILLED: {
+            int i;
+            const struct nk_command_polygon_filled *p = (const struct nk_command_polygon_filled*)cmd;
+            for (i = 0; i < p->point_count; ++i) {
+                struct nk_vec2 pnt = nk_vec2((float)p->points[i].x, (float)p->points[i].y);
+                nk_draw_list_path_line_to(&ctx->draw_list, pnt);
+            }
+            nk_draw_list_path_fill(&ctx->draw_list, p->color);
+        } break;
+        case NK_COMMAND_POLYLINE: {
+            int i;
+            const struct nk_command_polyline *p = (const struct nk_command_polyline*)cmd;
+            for (i = 0; i < p->point_count; ++i) {
+                struct nk_vec2 pnt = nk_vec2((float)p->points[i].x, (float)p->points[i].y);
+                nk_draw_list_path_line_to(&ctx->draw_list, pnt);
+            }
+            nk_draw_list_path_stroke(&ctx->draw_list, p->color, NK_STROKE_OPEN, p->line_thickness);
+        } break;
+        case NK_COMMAND_TEXT: {
+            const struct nk_command_text *t = (const struct nk_command_text*)cmd;
+            nk_draw_list_add_text(&ctx->draw_list, t->font, nk_rect(t->x, t->y, t->w, t->h),
+                t->string, t->length, t->height, t->foreground);
+        } break;
+        case NK_COMMAND_IMAGE: {
+            const struct nk_command_image *i = (const struct nk_command_image*)cmd;
+            nk_draw_list_add_image(&ctx->draw_list, i->img, nk_rect(i->x, i->y, i->w, i->h), i->col);
+        } break;
+        case NK_COMMAND_CUSTOM: {
+            const struct nk_command_custom *c = (const struct nk_command_custom*)cmd;
+            c->callback(&ctx->draw_list, c->x, c->y, c->w, c->h, c->callback_data);
+        } break;
+        default: break;
+        }
+    }
+    res |= (cmds->needed > cmds->allocated + (cmds->memory.size - cmds->size)) ? NK_CONVERT_COMMAND_BUFFER_FULL: 0;
+    res |= (vertices->needed > vertices->allocated) ? NK_CONVERT_VERTEX_BUFFER_FULL: 0;
+    res |= (elements->needed > elements->allocated) ? NK_CONVERT_ELEMENT_BUFFER_FULL: 0;
+    return res;
+}
+NK_API const struct nk_draw_command*
+nk__draw_begin(const struct nk_context *ctx,
+    const struct nk_buffer *buffer)
+{
+    return nk__draw_list_begin(&ctx->draw_list, buffer);
+}
+NK_API const struct nk_draw_command*
+nk__draw_end(const struct nk_context *ctx, const struct nk_buffer *buffer)
+{
+    return nk__draw_list_end(&ctx->draw_list, buffer);
+}
+NK_API const struct nk_draw_command*
+nk__draw_next(const struct nk_draw_command *cmd,
+    const struct nk_buffer *buffer, const struct nk_context *ctx)
+{
+    return nk__draw_list_next(cmd, buffer, &ctx->draw_list);
+}
+#endif
+
+
+
+
+
+#ifdef NK_INCLUDE_FONT_BAKING
+/* -------------------------------------------------------------
+ *
+ *                          RECT PACK
+ *
+ * --------------------------------------------------------------*/
+/* stb_rect_pack.h - v0.05 - public domain - rectangle packing */
+/* Sean Barrett 2014 */
+#define NK_RP__MAXVAL  0xffff
+typedef unsigned short nk_rp_coord;
+
+struct nk_rp_rect {
+    /* reserved for your use: */
+    int id;
+    /* input: */
+    nk_rp_coord w, h;
+    /* output: */
+    nk_rp_coord x, y;
+    int was_packed;
+    /* non-zero if valid packing */
+}; /* 16 bytes, nominally */
+
+struct nk_rp_node {
+    nk_rp_coord  x,y;
+    struct nk_rp_node  *next;
+};
+
+struct nk_rp_context {
+    int width;
+    int height;
+    int align;
+    int init_mode;
+    int heuristic;
+    int num_nodes;
+    struct nk_rp_node *active_head;
+    struct nk_rp_node *free_head;
+    struct nk_rp_node extra[2];
+    /* we allocate two extra nodes so optimal user-node-count is 'width' not 'width+2' */
+};
+
+struct nk_rp__findresult {
+    int x,y;
+    struct nk_rp_node **prev_link;
+};
+
+enum NK_RP_HEURISTIC {
+    NK_RP_HEURISTIC_Skyline_default=0,
+    NK_RP_HEURISTIC_Skyline_BL_sortHeight = NK_RP_HEURISTIC_Skyline_default,
+    NK_RP_HEURISTIC_Skyline_BF_sortHeight
+};
+enum NK_RP_INIT_STATE{NK_RP__INIT_skyline = 1};
+
+NK_INTERN void
+nk_rp_setup_allow_out_of_mem(struct nk_rp_context *context, int allow_out_of_mem)
+{
+    if (allow_out_of_mem)
+        /* if it's ok to run out of memory, then don't bother aligning them; */
+        /* this gives better packing, but may fail due to OOM (even though */
+        /* the rectangles easily fit). @TODO a smarter approach would be to only */
+        /* quantize once we've hit OOM, then we could get rid of this parameter. */
+        context->align = 1;
+    else {
+        /* if it's not ok to run out of memory, then quantize the widths */
+        /* so that num_nodes is always enough nodes. */
+        /* */
+        /* I.e. num_nodes * align >= width */
+        /*                  align >= width / num_nodes */
+        /*                  align = ceil(width/num_nodes) */
+        context->align = (context->width + context->num_nodes-1) / context->num_nodes;
+    }
+}
+NK_INTERN void
+nk_rp_init_target(struct nk_rp_context *context, int width, int height,
+    struct nk_rp_node *nodes, int num_nodes)
+{
+    int i;
+#ifndef STBRP_LARGE_RECTS
+    NK_ASSERT(width <= 0xffff && height <= 0xffff);
+#endif
+
+    for (i=0; i < num_nodes-1; ++i)
+        nodes[i].next = &nodes[i+1];
+    nodes[i].next = 0;
+    context->init_mode = NK_RP__INIT_skyline;
+    context->heuristic = NK_RP_HEURISTIC_Skyline_default;
+    context->free_head = &nodes[0];
+    context->active_head = &context->extra[0];
+    context->width = width;
+    context->height = height;
+    context->num_nodes = num_nodes;
+    nk_rp_setup_allow_out_of_mem(context, 0);
+
+    /* node 0 is the full width, node 1 is the sentinel (lets us not store width explicitly) */
+    context->extra[0].x = 0;
+    context->extra[0].y = 0;
+    context->extra[0].next = &context->extra[1];
+    context->extra[1].x = (nk_rp_coord) width;
+    context->extra[1].y = 65535;
+    context->extra[1].next = 0;
+}
+/* find minimum y position if it starts at x1 */
+NK_INTERN int
+nk_rp__skyline_find_min_y(struct nk_rp_context *c, struct nk_rp_node *first,
+    int x0, int width, int *pwaste)
+{
+    struct nk_rp_node *node = first;
+    int x1 = x0 + width;
+    int min_y, visited_width, waste_area;
+    NK_ASSERT(first->x <= x0);
+    NK_UNUSED(c);
+
+    NK_ASSERT(node->next->x > x0);
+    /* we ended up handling this in the caller for efficiency */
+    NK_ASSERT(node->x <= x0);
+
+    min_y = 0;
+    waste_area = 0;
+    visited_width = 0;
+    while (node->x < x1)
+    {
+        if (node->y > min_y) {
+            /* raise min_y higher. */
+            /* we've accounted for all waste up to min_y, */
+            /* but we'll now add more waste for everything we've visited */
+            waste_area += visited_width * (node->y - min_y);
+            min_y = node->y;
+            /* the first time through, visited_width might be reduced */
+            if (node->x < x0)
+            visited_width += node->next->x - x0;
+            else
+            visited_width += node->next->x - node->x;
+        } else {
+            /* add waste area */
+            int under_width = node->next->x - node->x;
+            if (under_width + visited_width > width)
+            under_width = width - visited_width;
+            waste_area += under_width * (min_y - node->y);
+            visited_width += under_width;
+        }
+        node = node->next;
+    }
+    *pwaste = waste_area;
+    return min_y;
+}
+NK_INTERN struct nk_rp__findresult
+nk_rp__skyline_find_best_pos(struct nk_rp_context *c, int width, int height)
+{
+    int best_waste = (1<<30), best_x, best_y = (1 << 30);
+    struct nk_rp__findresult fr;
+    struct nk_rp_node **prev, *node, *tail, **best = 0;
+
+    /* align to multiple of c->align */
+    width = (width + c->align - 1);
+    width -= width % c->align;
+    NK_ASSERT(width % c->align == 0);
+
+    node = c->active_head;
+    prev = &c->active_head;
+    while (node->x + width <= c->width) {
+        int y,waste;
+        y = nk_rp__skyline_find_min_y(c, node, node->x, width, &waste);
+        /* actually just want to test BL */
+        if (c->heuristic == NK_RP_HEURISTIC_Skyline_BL_sortHeight) {
+            /* bottom left */
+            if (y < best_y) {
+            best_y = y;
+            best = prev;
+            }
+        } else {
+            /* best-fit */
+            if (y + height <= c->height) {
+                /* can only use it if it first vertically */
+                if (y < best_y || (y == best_y && waste < best_waste)) {
+                    best_y = y;
+                    best_waste = waste;
+                    best = prev;
+                }
+            }
+        }
+        prev = &node->next;
+        node = node->next;
+    }
+    best_x = (best == 0) ? 0 : (*best)->x;
+
+    /* if doing best-fit (BF), we also have to try aligning right edge to each node position */
+    /* */
+    /* e.g, if fitting */
+    /* */
+    /*     ____________________ */
+    /*    |____________________| */
+    /* */
+    /*            into */
+    /* */
+    /*   |                         | */
+    /*   |             ____________| */
+    /*   |____________| */
+    /* */
+    /* then right-aligned reduces waste, but bottom-left BL is always chooses left-aligned */
+    /* */
+    /* This makes BF take about 2x the time */
+    if (c->heuristic == NK_RP_HEURISTIC_Skyline_BF_sortHeight)
+    {
+        tail = c->active_head;
+        node = c->active_head;
+        prev = &c->active_head;
+        /* find first node that's admissible */
+        while (tail->x < width)
+            tail = tail->next;
+        while (tail)
+        {
+            int xpos = tail->x - width;
+            int y,waste;
+            NK_ASSERT(xpos >= 0);
+            /* find the left position that matches this */
+            while (node->next->x <= xpos) {
+                prev = &node->next;
+                node = node->next;
+            }
+            NK_ASSERT(node->next->x > xpos && node->x <= xpos);
+            y = nk_rp__skyline_find_min_y(c, node, xpos, width, &waste);
+            if (y + height < c->height) {
+                if (y <= best_y) {
+                    if (y < best_y || waste < best_waste || (waste==best_waste && xpos < best_x)) {
+                        best_x = xpos;
+                        NK_ASSERT(y <= best_y);
+                        best_y = y;
+                        best_waste = waste;
+                        best = prev;
+                    }
+                }
+            }
+            tail = tail->next;
+        }
+    }
+    fr.prev_link = best;
+    fr.x = best_x;
+    fr.y = best_y;
+    return fr;
+}
+NK_INTERN struct nk_rp__findresult
+nk_rp__skyline_pack_rectangle(struct nk_rp_context *context, int width, int height)
+{
+    /* find best position according to heuristic */
+    struct nk_rp__findresult res = nk_rp__skyline_find_best_pos(context, width, height);
+    struct nk_rp_node *node, *cur;
+
+    /* bail if: */
+    /*    1. it failed */
+    /*    2. the best node doesn't fit (we don't always check this) */
+    /*    3. we're out of memory */
+    if (res.prev_link == 0 || res.y + height > context->height || context->free_head == 0) {
+        res.prev_link = 0;
+        return res;
+    }
+
+    /* on success, create new node */
+    node = context->free_head;
+    node->x = (nk_rp_coord) res.x;
+    node->y = (nk_rp_coord) (res.y + height);
+
+    context->free_head = node->next;
+
+    /* insert the new node into the right starting point, and */
+    /* let 'cur' point to the remaining nodes needing to be */
+    /* stitched back in */
+    cur = *res.prev_link;
+    if (cur->x < res.x) {
+        /* preserve the existing one, so start testing with the next one */
+        struct nk_rp_node *next = cur->next;
+        cur->next = node;
+        cur = next;
+    } else {
+        *res.prev_link = node;
+    }
+
+    /* from here, traverse cur and free the nodes, until we get to one */
+    /* that shouldn't be freed */
+    while (cur->next && cur->next->x <= res.x + width) {
+        struct nk_rp_node *next = cur->next;
+        /* move the current node to the free list */
+        cur->next = context->free_head;
+        context->free_head = cur;
+        cur = next;
+    }
+    /* stitch the list back in */
+    node->next = cur;
+
+    if (cur->x < res.x + width)
+        cur->x = (nk_rp_coord) (res.x + width);
+    return res;
+}
+NK_INTERN int
+nk_rect_height_compare(const void *a, const void *b)
+{
+    const struct nk_rp_rect *p = (const struct nk_rp_rect *) a;
+    const struct nk_rp_rect *q = (const struct nk_rp_rect *) b;
+    if (p->h > q->h)
+        return -1;
+    if (p->h < q->h)
+        return  1;
+    return (p->w > q->w) ? -1 : (p->w < q->w);
+}
+NK_INTERN int
+nk_rect_original_order(const void *a, const void *b)
+{
+    const struct nk_rp_rect *p = (const struct nk_rp_rect *) a;
+    const struct nk_rp_rect *q = (const struct nk_rp_rect *) b;
+    return (p->was_packed < q->was_packed) ? -1 : (p->was_packed > q->was_packed);
+}
+NK_INTERN void
+nk_rp_qsort(struct nk_rp_rect *array, unsigned int len, int(*cmp)(const void*,const void*))
+{
+    /* iterative quick sort */
+    #define NK_MAX_SORT_STACK 64
+    unsigned right, left = 0, stack[NK_MAX_SORT_STACK], pos = 0;
+    unsigned seed = len/2 * 69069+1;
+    for (;;) {
+        for (; left+1 < len; len++) {
+            struct nk_rp_rect pivot, tmp;
+            if (pos == NK_MAX_SORT_STACK) len = stack[pos = 0];
+            pivot = array[left+seed%(len-left)];
+            seed = seed * 69069 + 1;
+            stack[pos++] = len;
+            for (right = left-1;;) {
+                while (cmp(&array[++right], &pivot) < 0);
+                while (cmp(&pivot, &array[--len]) < 0);
+                if (right >= len) break;
+                tmp = array[right];
+                array[right] = array[len];
+                array[len] = tmp;
+            }
+        }
+        if (pos == 0) break;
+        left = len;
+        len = stack[--pos];
+    }
+    #undef NK_MAX_SORT_STACK
+}
+NK_INTERN void
+nk_rp_pack_rects(struct nk_rp_context *context, struct nk_rp_rect *rects, int num_rects)
+{
+    int i;
+    /* we use the 'was_packed' field internally to allow sorting/unsorting */
+    for (i=0; i < num_rects; ++i) {
+        rects[i].was_packed = i;
+    }
+
+    /* sort according to heuristic */
+    nk_rp_qsort(rects, (unsigned)num_rects, nk_rect_height_compare);
+
+    for (i=0; i < num_rects; ++i) {
+        struct nk_rp__findresult fr = nk_rp__skyline_pack_rectangle(context, rects[i].w, rects[i].h);
+        if (fr.prev_link) {
+            rects[i].x = (nk_rp_coord) fr.x;
+            rects[i].y = (nk_rp_coord) fr.y;
+        } else {
+            rects[i].x = rects[i].y = NK_RP__MAXVAL;
+        }
+    }
+
+    /* unsort */
+    nk_rp_qsort(rects, (unsigned)num_rects, nk_rect_original_order);
+
+    /* set was_packed flags */
+    for (i=0; i < num_rects; ++i)
+        rects[i].was_packed = !(rects[i].x == NK_RP__MAXVAL && rects[i].y == NK_RP__MAXVAL);
+}
+
+/*
+ * ==============================================================
+ *
+ *                          TRUETYPE
+ *
+ * ===============================================================
+ */
+/* stb_truetype.h - v1.07 - public domain */
+#define NK_TT_MAX_OVERSAMPLE   8
+#define NK_TT__OVER_MASK  (NK_TT_MAX_OVERSAMPLE-1)
+
+struct nk_tt_bakedchar {
+    unsigned short x0,y0,x1,y1;
+    /* coordinates of bbox in bitmap */
+    float xoff,yoff,xadvance;
+};
+
+struct nk_tt_aligned_quad{
+    float x0,y0,s0,t0; /* top-left */
+    float x1,y1,s1,t1; /* bottom-right */
+};
+
+struct nk_tt_packedchar {
+    unsigned short x0,y0,x1,y1;
+    /* coordinates of bbox in bitmap */
+    float xoff,yoff,xadvance;
+    float xoff2,yoff2;
+};
+
+struct nk_tt_pack_range {
+    float font_size;
+    int first_unicode_codepoint_in_range;
+    /* if non-zero, then the chars are continuous, and this is the first codepoint */
+    int *array_of_unicode_codepoints;
+    /* if non-zero, then this is an array of unicode codepoints */
+    int num_chars;
+    struct nk_tt_packedchar *chardata_for_range; /* output */
+    unsigned char h_oversample, v_oversample;
+    /* don't set these, they're used internally */
+};
+
+struct nk_tt_pack_context {
+    void *pack_info;
+    int   width;
+    int   height;
+    int   stride_in_bytes;
+    int   padding;
+    unsigned int   h_oversample, v_oversample;
+    unsigned char *pixels;
+    void  *nodes;
+};
+
+struct nk_tt_fontinfo {
+    const unsigned char* data; /* pointer to .ttf file */
+    int fontstart;/* offset of start of font */
+    int numGlyphs;/* number of glyphs, needed for range checking */
+    int loca,head,glyf,hhea,hmtx,kern; /* table locations as offset from start of .ttf */
+    int index_map; /* a cmap mapping for our chosen character encoding */
+    int indexToLocFormat; /* format needed to map from glyph index to glyph */
+};
+
+enum {
+  NK_TT_vmove=1,
+  NK_TT_vline,
+  NK_TT_vcurve
+};
+
+struct nk_tt_vertex {
+    short x,y,cx,cy;
+    unsigned char type,padding;
+};
+
+struct nk_tt__bitmap{
+   int w,h,stride;
+   unsigned char *pixels;
+};
+
+struct nk_tt__hheap_chunk {
+    struct nk_tt__hheap_chunk *next;
+};
+struct nk_tt__hheap {
+    struct nk_allocator alloc;
+    struct nk_tt__hheap_chunk *head;
+    void   *first_free;
+    int    num_remaining_in_head_chunk;
+};
+
+struct nk_tt__edge {
+    float x0,y0, x1,y1;
+    int invert;
+};
+
+struct nk_tt__active_edge {
+    struct nk_tt__active_edge *next;
+    float fx,fdx,fdy;
+    float direction;
+    float sy;
+    float ey;
+};
+struct nk_tt__point {float x,y;};
+
+#define NK_TT_MACSTYLE_DONTCARE     0
+#define NK_TT_MACSTYLE_BOLD         1
+#define NK_TT_MACSTYLE_ITALIC       2
+#define NK_TT_MACSTYLE_UNDERSCORE   4
+#define NK_TT_MACSTYLE_NONE         8
+/* <= not same as 0, this makes us check the bitfield is 0 */
+
+enum { /* platformID */
+   NK_TT_PLATFORM_ID_UNICODE   =0,
+   NK_TT_PLATFORM_ID_MAC       =1,
+   NK_TT_PLATFORM_ID_ISO       =2,
+   NK_TT_PLATFORM_ID_MICROSOFT =3
+};
+
+enum { /* encodingID for NK_TT_PLATFORM_ID_UNICODE */
+   NK_TT_UNICODE_EID_UNICODE_1_0    =0,
+   NK_TT_UNICODE_EID_UNICODE_1_1    =1,
+   NK_TT_UNICODE_EID_ISO_10646      =2,
+   NK_TT_UNICODE_EID_UNICODE_2_0_BMP=3,
+   NK_TT_UNICODE_EID_UNICODE_2_0_FULL=4
+};
+
+enum { /* encodingID for NK_TT_PLATFORM_ID_MICROSOFT */
+   NK_TT_MS_EID_SYMBOL        =0,
+   NK_TT_MS_EID_UNICODE_BMP   =1,
+   NK_TT_MS_EID_SHIFTJIS      =2,
+   NK_TT_MS_EID_UNICODE_FULL  =10
+};
+
+enum { /* encodingID for NK_TT_PLATFORM_ID_MAC; same as Script Manager codes */
+   NK_TT_MAC_EID_ROMAN        =0,   NK_TT_MAC_EID_ARABIC       =4,
+   NK_TT_MAC_EID_JAPANESE     =1,   NK_TT_MAC_EID_HEBREW       =5,
+   NK_TT_MAC_EID_CHINESE_TRAD =2,   NK_TT_MAC_EID_GREEK        =6,
+   NK_TT_MAC_EID_KOREAN       =3,   NK_TT_MAC_EID_RUSSIAN      =7
+};
+
+enum { /* languageID for NK_TT_PLATFORM_ID_MICROSOFT; same as LCID... */
+       /* problematic because there are e.g. 16 english LCIDs and 16 arabic LCIDs */
+   NK_TT_MS_LANG_ENGLISH     =0x0409,   NK_TT_MS_LANG_ITALIAN     =0x0410,
+   NK_TT_MS_LANG_CHINESE     =0x0804,   NK_TT_MS_LANG_JAPANESE    =0x0411,
+   NK_TT_MS_LANG_DUTCH       =0x0413,   NK_TT_MS_LANG_KOREAN      =0x0412,
+   NK_TT_MS_LANG_FRENCH      =0x040c,   NK_TT_MS_LANG_RUSSIAN     =0x0419,
+   NK_TT_MS_LANG_GERMAN      =0x0407,   NK_TT_MS_LANG_SPANISH     =0x0409,
+   NK_TT_MS_LANG_HEBREW      =0x040d,   NK_TT_MS_LANG_SWEDISH     =0x041D
+};
+
+enum { /* languageID for NK_TT_PLATFORM_ID_MAC */
+   NK_TT_MAC_LANG_ENGLISH      =0 ,   NK_TT_MAC_LANG_JAPANESE     =11,
+   NK_TT_MAC_LANG_ARABIC       =12,   NK_TT_MAC_LANG_KOREAN       =23,
+   NK_TT_MAC_LANG_DUTCH        =4 ,   NK_TT_MAC_LANG_RUSSIAN      =32,
+   NK_TT_MAC_LANG_FRENCH       =1 ,   NK_TT_MAC_LANG_SPANISH      =6 ,
+   NK_TT_MAC_LANG_GERMAN       =2 ,   NK_TT_MAC_LANG_SWEDISH      =5 ,
+   NK_TT_MAC_LANG_HEBREW       =10,   NK_TT_MAC_LANG_CHINESE_SIMPLIFIED =33,
+   NK_TT_MAC_LANG_ITALIAN      =3 ,   NK_TT_MAC_LANG_CHINESE_TRAD =19
+};
+
+#define nk_ttBYTE(p)     (* (const nk_byte *) (p))
+#define nk_ttCHAR(p)     (* (const char *) (p))
+
+#if defined(NK_BIGENDIAN) && !defined(NK_ALLOW_UNALIGNED_TRUETYPE)
+   #define nk_ttUSHORT(p)   (* (nk_ushort *) (p))
+   #define nk_ttSHORT(p)    (* (nk_short *) (p))
+   #define nk_ttULONG(p)    (* (nk_uint *) (p))
+   #define nk_ttLONG(p)     (* (nk_int *) (p))
+#else
+    static nk_ushort nk_ttUSHORT(const nk_byte *p) { return (nk_ushort)(p[0]*256 + p[1]); }
+    static nk_short nk_ttSHORT(const nk_byte *p)   { return (nk_short)(p[0]*256 + p[1]); }
+    static nk_uint nk_ttULONG(const nk_byte *p)  { return (nk_uint)((p[0]<<24) + (p[1]<<16) + (p[2]<<8) + p[3]); }
+#endif
+
+#define nk_tt_tag4(p,c0,c1,c2,c3)\
+    ((p)[0] == (c0) && (p)[1] == (c1) && (p)[2] == (c2) && (p)[3] == (c3))
+#define nk_tt_tag(p,str) nk_tt_tag4(p,str[0],str[1],str[2],str[3])
+
+NK_INTERN int nk_tt_GetGlyphShape(const struct nk_tt_fontinfo *info, struct nk_allocator *alloc,
+                                int glyph_index, struct nk_tt_vertex **pvertices);
+
+NK_INTERN nk_uint
+nk_tt__find_table(const nk_byte *data, nk_uint fontstart, const char *tag)
+{
+    /* @OPTIMIZE: binary search */
+    nk_int num_tables = nk_ttUSHORT(data+fontstart+4);
+    nk_uint tabledir = fontstart + 12;
+    nk_int i;
+    for (i = 0; i < num_tables; ++i) {
+        nk_uint loc = tabledir + (nk_uint)(16*i);
+        if (nk_tt_tag(data+loc+0, tag))
+            return nk_ttULONG(data+loc+8);
+    }
+    return 0;
+}
+NK_INTERN int
+nk_tt_InitFont(struct nk_tt_fontinfo *info, const unsigned char *data2, int fontstart)
+{
+    nk_uint cmap, t;
+    nk_int i,numTables;
+    const nk_byte *data = (const nk_byte *) data2;
+
+    info->data = data;
+    info->fontstart = fontstart;
+
+    cmap = nk_tt__find_table(data, (nk_uint)fontstart, "cmap");       /* required */
+    info->loca = (int)nk_tt__find_table(data, (nk_uint)fontstart, "loca"); /* required */
+    info->head = (int)nk_tt__find_table(data, (nk_uint)fontstart, "head"); /* required */
+    info->glyf = (int)nk_tt__find_table(data, (nk_uint)fontstart, "glyf"); /* required */
+    info->hhea = (int)nk_tt__find_table(data, (nk_uint)fontstart, "hhea"); /* required */
+    info->hmtx = (int)nk_tt__find_table(data, (nk_uint)fontstart, "hmtx"); /* required */
+    info->kern = (int)nk_tt__find_table(data, (nk_uint)fontstart, "kern"); /* not required */
+    if (!cmap || !info->loca || !info->head || !info->glyf || !info->hhea || !info->hmtx)
+        return 0;
+
+    t = nk_tt__find_table(data, (nk_uint)fontstart, "maxp");
+    if (t) info->numGlyphs = nk_ttUSHORT(data+t+4);
+    else info->numGlyphs = 0xffff;
+
+    /* find a cmap encoding table we understand *now* to avoid searching */
+    /* later. (todo: could make this installable) */
+    /* the same regardless of glyph. */
+    numTables = nk_ttUSHORT(data + cmap + 2);
+    info->index_map = 0;
+    for (i=0; i < numTables; ++i)
+    {
+        nk_uint encoding_record = cmap + 4 + 8 * (nk_uint)i;
+        /* find an encoding we understand: */
+        switch(nk_ttUSHORT(data+encoding_record)) {
+        case NK_TT_PLATFORM_ID_MICROSOFT:
+            switch (nk_ttUSHORT(data+encoding_record+2)) {
+            case NK_TT_MS_EID_UNICODE_BMP:
+            case NK_TT_MS_EID_UNICODE_FULL:
+                /* MS/Unicode */
+                info->index_map = (int)(cmap + nk_ttULONG(data+encoding_record+4));
+                break;
+            default: break;
+            } break;
+        case NK_TT_PLATFORM_ID_UNICODE:
+            /* Mac/iOS has these */
+            /* all the encodingIDs are unicode, so we don't bother to check it */
+            info->index_map = (int)(cmap + nk_ttULONG(data+encoding_record+4));
+            break;
+        default: break;
+        }
+    }
+    if (info->index_map == 0)
+        return 0;
+    info->indexToLocFormat = nk_ttUSHORT(data+info->head + 50);
+    return 1;
+}
+NK_INTERN int
+nk_tt_FindGlyphIndex(const struct nk_tt_fontinfo *info, int unicode_codepoint)
+{
+    const nk_byte *data = info->data;
+    nk_uint index_map = (nk_uint)info->index_map;
+
+    nk_ushort format = nk_ttUSHORT(data + index_map + 0);
+    if (format == 0) { /* apple byte encoding */
+        nk_int bytes = nk_ttUSHORT(data + index_map + 2);
+        if (unicode_codepoint < bytes-6)
+            return nk_ttBYTE(data + index_map + 6 + unicode_codepoint);
+        return 0;
+    } else if (format == 6) {
+        nk_uint first = nk_ttUSHORT(data + index_map + 6);
+        nk_uint count = nk_ttUSHORT(data + index_map + 8);
+        if ((nk_uint) unicode_codepoint >= first && (nk_uint) unicode_codepoint < first+count)
+            return nk_ttUSHORT(data + index_map + 10 + (unicode_codepoint - (int)first)*2);
+        return 0;
+    } else if (format == 2) {
+        NK_ASSERT(0); /* @TODO: high-byte mapping for japanese/chinese/korean */
+        return 0;
+    } else if (format == 4) { /* standard mapping for windows fonts: binary search collection of ranges */
+        nk_ushort segcount = nk_ttUSHORT(data+index_map+6) >> 1;
+        nk_ushort searchRange = nk_ttUSHORT(data+index_map+8) >> 1;
+        nk_ushort entrySelector = nk_ttUSHORT(data+index_map+10);
+        nk_ushort rangeShift = nk_ttUSHORT(data+index_map+12) >> 1;
+
+        /* do a binary search of the segments */
+        nk_uint endCount = index_map + 14;
+        nk_uint search = endCount;
+
+        if (unicode_codepoint > 0xffff)
+            return 0;
+
+        /* they lie from endCount .. endCount + segCount */
+        /* but searchRange is the nearest power of two, so... */
+        if (unicode_codepoint >= nk_ttUSHORT(data + search + rangeShift*2))
+            search += (nk_uint)(rangeShift*2);
+
+        /* now decrement to bias correctly to find smallest */
+        search -= 2;
+        while (entrySelector) {
+            nk_ushort end;
+            searchRange >>= 1;
+            end = nk_ttUSHORT(data + search + searchRange*2);
+            if (unicode_codepoint > end)
+                search += (nk_uint)(searchRange*2);
+            --entrySelector;
+        }
+        search += 2;
+
+      {
+         nk_ushort offset, start;
+         nk_ushort item = (nk_ushort) ((search - endCount) >> 1);
+
+         NK_ASSERT(unicode_codepoint <= nk_ttUSHORT(data + endCount + 2*item));
+         start = nk_ttUSHORT(data + index_map + 14 + segcount*2 + 2 + 2*item);
+         if (unicode_codepoint < start)
+            return 0;
+
+         offset = nk_ttUSHORT(data + index_map + 14 + segcount*6 + 2 + 2*item);
+         if (offset == 0)
+            return (nk_ushort) (unicode_codepoint + nk_ttSHORT(data + index_map + 14 + segcount*4 + 2 + 2*item));
+
+         return nk_ttUSHORT(data + offset + (unicode_codepoint-start)*2 + index_map + 14 + segcount*6 + 2 + 2*item);
+      }
+   } else if (format == 12 || format == 13) {
+        nk_uint ngroups = nk_ttULONG(data+index_map+12);
+        nk_int low,high;
+        low = 0; high = (nk_int)ngroups;
+        /* Binary search the right group. */
+        while (low < high) {
+            nk_int mid = low + ((high-low) >> 1); /* rounds down, so low <= mid < high */
+            nk_uint start_char = nk_ttULONG(data+index_map+16+mid*12);
+            nk_uint end_char = nk_ttULONG(data+index_map+16+mid*12+4);
+            if ((nk_uint) unicode_codepoint < start_char)
+                high = mid;
+            else if ((nk_uint) unicode_codepoint > end_char)
+                low = mid+1;
+            else {
+                nk_uint start_glyph = nk_ttULONG(data+index_map+16+mid*12+8);
+                if (format == 12)
+                    return (int)start_glyph + (int)unicode_codepoint - (int)start_char;
+                else /* format == 13 */
+                    return (int)start_glyph;
+            }
+        }
+        return 0; /* not found */
+    }
+    /* @TODO */
+    NK_ASSERT(0);
+    return 0;
+}
+NK_INTERN void
+nk_tt_setvertex(struct nk_tt_vertex *v, nk_byte type, nk_int x, nk_int y, nk_int cx, nk_int cy)
+{
+    v->type = type;
+    v->x = (nk_short) x;
+    v->y = (nk_short) y;
+    v->cx = (nk_short) cx;
+    v->cy = (nk_short) cy;
+}
+NK_INTERN int
+nk_tt__GetGlyfOffset(const struct nk_tt_fontinfo *info, int glyph_index)
+{
+    int g1,g2;
+    if (glyph_index >= info->numGlyphs) return -1; /* glyph index out of range */
+    if (info->indexToLocFormat >= 2)    return -1; /* unknown index->glyph map format */
+
+    if (info->indexToLocFormat == 0) {
+        g1 = info->glyf + nk_ttUSHORT(info->data + info->loca + glyph_index * 2) * 2;
+        g2 = info->glyf + nk_ttUSHORT(info->data + info->loca + glyph_index * 2 + 2) * 2;
+    } else {
+        g1 = info->glyf + (int)nk_ttULONG (info->data + info->loca + glyph_index * 4);
+        g2 = info->glyf + (int)nk_ttULONG (info->data + info->loca + glyph_index * 4 + 4);
+    }
+    return g1==g2 ? -1 : g1; /* if length is 0, return -1 */
+}
+NK_INTERN int
+nk_tt_GetGlyphBox(const struct nk_tt_fontinfo *info, int glyph_index,
+    int *x0, int *y0, int *x1, int *y1)
+{
+    int g = nk_tt__GetGlyfOffset(info, glyph_index);
+    if (g < 0) return 0;
+
+    if (x0) *x0 = nk_ttSHORT(info->data + g + 2);
+    if (y0) *y0 = nk_ttSHORT(info->data + g + 4);
+    if (x1) *x1 = nk_ttSHORT(info->data + g + 6);
+    if (y1) *y1 = nk_ttSHORT(info->data + g + 8);
+    return 1;
+}
+NK_INTERN int
+nk_tt__close_shape(struct nk_tt_vertex *vertices, int num_vertices, int was_off,
+    int start_off, nk_int sx, nk_int sy, nk_int scx, nk_int scy, nk_int cx, nk_int cy)
+{
+   if (start_off) {
+      if (was_off)
+         nk_tt_setvertex(&vertices[num_vertices++], NK_TT_vcurve, (cx+scx)>>1, (cy+scy)>>1, cx,cy);
+      nk_tt_setvertex(&vertices[num_vertices++], NK_TT_vcurve, sx,sy,scx,scy);
+   } else {
+      if (was_off)
+         nk_tt_setvertex(&vertices[num_vertices++], NK_TT_vcurve,sx,sy,cx,cy);
+      else
+         nk_tt_setvertex(&vertices[num_vertices++], NK_TT_vline,sx,sy,0,0);
+   }
+   return num_vertices;
+}
+NK_INTERN int
+nk_tt_GetGlyphShape(const struct nk_tt_fontinfo *info, struct nk_allocator *alloc,
+    int glyph_index, struct nk_tt_vertex **pvertices)
+{
+    nk_short numberOfContours;
+    const nk_byte *endPtsOfContours;
+    const nk_byte *data = info->data;
+    struct nk_tt_vertex *vertices=0;
+    int num_vertices=0;
+    int g = nk_tt__GetGlyfOffset(info, glyph_index);
+    *pvertices = 0;
+
+    if (g < 0) return 0;
+    numberOfContours = nk_ttSHORT(data + g);
+    if (numberOfContours > 0) {
+        nk_byte flags=0,flagcount;
+        nk_int ins, i,j=0,m,n, next_move, was_off=0, off, start_off=0;
+        nk_int x,y,cx,cy,sx,sy, scx,scy;
+        const nk_byte *points;
+        endPtsOfContours = (data + g + 10);
+        ins = nk_ttUSHORT(data + g + 10 + numberOfContours * 2);
+        points = data + g + 10 + numberOfContours * 2 + 2 + ins;
+
+        n = 1+nk_ttUSHORT(endPtsOfContours + numberOfContours*2-2);
+        m = n + 2*numberOfContours;  /* a loose bound on how many vertices we might need */
+        vertices = (struct nk_tt_vertex *)alloc->alloc(alloc->userdata, 0, (nk_size)m * sizeof(vertices[0]));
+        if (vertices == 0)
+            return 0;
+
+        next_move = 0;
+        flagcount=0;
+
+        /* in first pass, we load uninterpreted data into the allocated array */
+        /* above, shifted to the end of the array so we won't overwrite it when */
+        /* we create our final data starting from the front */
+        off = m - n; /* starting offset for uninterpreted data, regardless of how m ends up being calculated */
+
+        /* first load flags */
+        for (i=0; i < n; ++i) {
+            if (flagcount == 0) {
+                flags = *points++;
+                if (flags & 8)
+                    flagcount = *points++;
+            } else --flagcount;
+            vertices[off+i].type = flags;
+        }
+
+        /* now load x coordinates */
+        x=0;
+        for (i=0; i < n; ++i) {
+            flags = vertices[off+i].type;
+            if (flags & 2) {
+                nk_short dx = *points++;
+                x += (flags & 16) ? dx : -dx; /* ??? */
+            } else {
+                if (!(flags & 16)) {
+                    x = x + (nk_short) (points[0]*256 + points[1]);
+                    points += 2;
+                }
+            }
+            vertices[off+i].x = (nk_short) x;
+        }
+
+        /* now load y coordinates */
+        y=0;
+        for (i=0; i < n; ++i) {
+            flags = vertices[off+i].type;
+            if (flags & 4) {
+                nk_short dy = *points++;
+                y += (flags & 32) ? dy : -dy; /* ??? */
+            } else {
+                if (!(flags & 32)) {
+                    y = y + (nk_short) (points[0]*256 + points[1]);
+                    points += 2;
+                }
+            }
+            vertices[off+i].y = (nk_short) y;
+        }
+
+        /* now convert them to our format */
+        num_vertices=0;
+        sx = sy = cx = cy = scx = scy = 0;
+        for (i=0; i < n; ++i)
+        {
+            flags = vertices[off+i].type;
+            x     = (nk_short) vertices[off+i].x;
+            y     = (nk_short) vertices[off+i].y;
+
+            if (next_move == i) {
+                if (i != 0)
+                    num_vertices = nk_tt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
+
+                /* now start the new one                */
+                start_off = !(flags & 1);
+                if (start_off) {
+                    /* if we start off with an off-curve point, then when we need to find a point on the curve */
+                    /* where we can start, and we need to save some state for when we wraparound. */
+                    scx = x;
+                    scy = y;
+                    if (!(vertices[off+i+1].type & 1)) {
+                        /* next point is also a curve point, so interpolate an on-point curve */
+                        sx = (x + (nk_int) vertices[off+i+1].x) >> 1;
+                        sy = (y + (nk_int) vertices[off+i+1].y) >> 1;
+                    } else {
+                        /* otherwise just use the next point as our start point */
+                        sx = (nk_int) vertices[off+i+1].x;
+                        sy = (nk_int) vertices[off+i+1].y;
+                        ++i; /* we're using point i+1 as the starting point, so skip it */
+                    }
+                } else {
+                    sx = x;
+                    sy = y;
+                }
+                nk_tt_setvertex(&vertices[num_vertices++], NK_TT_vmove,sx,sy,0,0);
+                was_off = 0;
+                next_move = 1 + nk_ttUSHORT(endPtsOfContours+j*2);
+                ++j;
+            } else {
+                if (!(flags & 1))
+                { /* if it's a curve */
+                    if (was_off) /* two off-curve control points in a row means interpolate an on-curve midpoint */
+                        nk_tt_setvertex(&vertices[num_vertices++], NK_TT_vcurve, (cx+x)>>1, (cy+y)>>1, cx, cy);
+                    cx = x;
+                    cy = y;
+                    was_off = 1;
+                } else {
+                    if (was_off)
+                        nk_tt_setvertex(&vertices[num_vertices++], NK_TT_vcurve, x,y, cx, cy);
+                    else nk_tt_setvertex(&vertices[num_vertices++], NK_TT_vline, x,y,0,0);
+                    was_off = 0;
+                }
+            }
+        }
+        num_vertices = nk_tt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
+    } else if (numberOfContours == -1) {
+        /* Compound shapes. */
+        int more = 1;
+        const nk_byte *comp = data + g + 10;
+        num_vertices = 0;
+        vertices = 0;
+
+        while (more)
+        {
+            nk_ushort flags, gidx;
+            int comp_num_verts = 0, i;
+            struct nk_tt_vertex *comp_verts = 0, *tmp = 0;
+            float mtx[6] = {1,0,0,1,0,0}, m, n;
+
+            flags = (nk_ushort)nk_ttSHORT(comp); comp+=2;
+            gidx = (nk_ushort)nk_ttSHORT(comp); comp+=2;
+
+            if (flags & 2) { /* XY values */
+                if (flags & 1) { /* shorts */
+                    mtx[4] = nk_ttSHORT(comp); comp+=2;
+                    mtx[5] = nk_ttSHORT(comp); comp+=2;
+                } else {
+                    mtx[4] = nk_ttCHAR(comp); comp+=1;
+                    mtx[5] = nk_ttCHAR(comp); comp+=1;
+                }
+            } else {
+                /* @TODO handle matching point */
+                NK_ASSERT(0);
+            }
+            if (flags & (1<<3)) { /* WE_HAVE_A_SCALE */
+                mtx[0] = mtx[3] = nk_ttSHORT(comp)/16384.0f; comp+=2;
+                mtx[1] = mtx[2] = 0;
+            } else if (flags & (1<<6)) { /* WE_HAVE_AN_X_AND_YSCALE */
+                mtx[0] = nk_ttSHORT(comp)/16384.0f; comp+=2;
+                mtx[1] = mtx[2] = 0;
+                mtx[3] = nk_ttSHORT(comp)/16384.0f; comp+=2;
+            } else if (flags & (1<<7)) { /* WE_HAVE_A_TWO_BY_TWO */
+                mtx[0] = nk_ttSHORT(comp)/16384.0f; comp+=2;
+                mtx[1] = nk_ttSHORT(comp)/16384.0f; comp+=2;
+                mtx[2] = nk_ttSHORT(comp)/16384.0f; comp+=2;
+                mtx[3] = nk_ttSHORT(comp)/16384.0f; comp+=2;
+            }
+
+             /* Find transformation scales. */
+            m = (float) NK_SQRT(mtx[0]*mtx[0] + mtx[1]*mtx[1]);
+            n = (float) NK_SQRT(mtx[2]*mtx[2] + mtx[3]*mtx[3]);
+
+             /* Get indexed glyph. */
+            comp_num_verts = nk_tt_GetGlyphShape(info, alloc, gidx, &comp_verts);
+            if (comp_num_verts > 0)
+            {
+                /* Transform vertices. */
+                for (i = 0; i < comp_num_verts; ++i) {
+                    struct nk_tt_vertex* v = &comp_verts[i];
+                    short x,y;
+                    x=v->x; y=v->y;
+                    v->x = (short)(m * (mtx[0]*x + mtx[2]*y + mtx[4]));
+                    v->y = (short)(n * (mtx[1]*x + mtx[3]*y + mtx[5]));
+                    x=v->cx; y=v->cy;
+                    v->cx = (short)(m * (mtx[0]*x + mtx[2]*y + mtx[4]));
+                    v->cy = (short)(n * (mtx[1]*x + mtx[3]*y + mtx[5]));
+                }
+                /* Append vertices. */
+                tmp = (struct nk_tt_vertex*)alloc->alloc(alloc->userdata, 0,
+                    (nk_size)(num_vertices+comp_num_verts)*sizeof(struct nk_tt_vertex));
+                if (!tmp) {
+                    if (vertices) alloc->free(alloc->userdata, vertices);
+                    if (comp_verts) alloc->free(alloc->userdata, comp_verts);
+                    return 0;
+                }
+                if (num_vertices > 0) NK_MEMCPY(tmp, vertices, (nk_size)num_vertices*sizeof(struct nk_tt_vertex));
+                NK_MEMCPY(tmp+num_vertices, comp_verts, (nk_size)comp_num_verts*sizeof(struct nk_tt_vertex));
+                if (vertices) alloc->free(alloc->userdata,vertices);
+                vertices = tmp;
+                alloc->free(alloc->userdata,comp_verts);
+                num_vertices += comp_num_verts;
+            }
+            /* More components ? */
+            more = flags & (1<<5);
+        }
+    } else if (numberOfContours < 0) {
+        /* @TODO other compound variations? */
+        NK_ASSERT(0);
+    } else {
+        /* numberOfCounters == 0, do nothing */
+    }
+    *pvertices = vertices;
+    return num_vertices;
+}
+NK_INTERN void
+nk_tt_GetGlyphHMetrics(const struct nk_tt_fontinfo *info, int glyph_index,
+    int *advanceWidth, int *leftSideBearing)
+{
+    nk_ushort numOfLongHorMetrics = nk_ttUSHORT(info->data+info->hhea + 34);
+    if (glyph_index < numOfLongHorMetrics) {
+        if (advanceWidth)
+            *advanceWidth    = nk_ttSHORT(info->data + info->hmtx + 4*glyph_index);
+        if (leftSideBearing)
+            *leftSideBearing = nk_ttSHORT(info->data + info->hmtx + 4*glyph_index + 2);
+    } else {
+        if (advanceWidth)
+            *advanceWidth    = nk_ttSHORT(info->data + info->hmtx + 4*(numOfLongHorMetrics-1));
+        if (leftSideBearing)
+            *leftSideBearing = nk_ttSHORT(info->data + info->hmtx + 4*numOfLongHorMetrics + 2*(glyph_index - numOfLongHorMetrics));
+    }
+}
+NK_INTERN void
+nk_tt_GetFontVMetrics(const struct nk_tt_fontinfo *info,
+    int *ascent, int *descent, int *lineGap)
+{
+   if (ascent ) *ascent  = nk_ttSHORT(info->data+info->hhea + 4);
+   if (descent) *descent = nk_ttSHORT(info->data+info->hhea + 6);
+   if (lineGap) *lineGap = nk_ttSHORT(info->data+info->hhea + 8);
+}
+NK_INTERN float
+nk_tt_ScaleForPixelHeight(const struct nk_tt_fontinfo *info, float height)
+{
+   int fheight = nk_ttSHORT(info->data + info->hhea + 4) - nk_ttSHORT(info->data + info->hhea + 6);
+   return (float) height / (float)fheight;
+}
+NK_INTERN float
+nk_tt_ScaleForMappingEmToPixels(const struct nk_tt_fontinfo *info, float pixels)
+{
+   int unitsPerEm = nk_ttUSHORT(info->data + info->head + 18);
+   return pixels / (float)unitsPerEm;
+}
+
+/*-------------------------------------------------------------
+ *            antialiasing software rasterizer
+ * --------------------------------------------------------------*/
+NK_INTERN void
+nk_tt_GetGlyphBitmapBoxSubpixel(const struct nk_tt_fontinfo *font,
+    int glyph, float scale_x, float scale_y,float shift_x, float shift_y,
+    int *ix0, int *iy0, int *ix1, int *iy1)
+{
+    int x0,y0,x1,y1;
+    if (!nk_tt_GetGlyphBox(font, glyph, &x0,&y0,&x1,&y1)) {
+        /* e.g. space character */
+        if (ix0) *ix0 = 0;
+        if (iy0) *iy0 = 0;
+        if (ix1) *ix1 = 0;
+        if (iy1) *iy1 = 0;
+    } else {
+        /* move to integral bboxes (treating pixels as little squares, what pixels get touched)? */
+        if (ix0) *ix0 = nk_ifloorf((float)x0 * scale_x + shift_x);
+        if (iy0) *iy0 = nk_ifloorf((float)-y1 * scale_y + shift_y);
+        if (ix1) *ix1 = nk_iceilf ((float)x1 * scale_x + shift_x);
+        if (iy1) *iy1 = nk_iceilf ((float)-y0 * scale_y + shift_y);
+    }
+}
+NK_INTERN void
+nk_tt_GetGlyphBitmapBox(const struct nk_tt_fontinfo *font, int glyph,
+    float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1)
+{
+   nk_tt_GetGlyphBitmapBoxSubpixel(font, glyph, scale_x, scale_y,0.0f,0.0f, ix0, iy0, ix1, iy1);
+}
+
+/*-------------------------------------------------------------
+ *                          Rasterizer
+ * --------------------------------------------------------------*/
+NK_INTERN void*
+nk_tt__hheap_alloc(struct nk_tt__hheap *hh, nk_size size)
+{
+    if (hh->first_free) {
+        void *p = hh->first_free;
+        hh->first_free = * (void **) p;
+        return p;
+    } else {
+        if (hh->num_remaining_in_head_chunk == 0) {
+            int count = (size < 32 ? 2000 : size < 128 ? 800 : 100);
+            struct nk_tt__hheap_chunk *c = (struct nk_tt__hheap_chunk *)
+                hh->alloc.alloc(hh->alloc.userdata, 0,
+                sizeof(struct nk_tt__hheap_chunk) + size * (nk_size)count);
+            if (c == 0) return 0;
+            c->next = hh->head;
+            hh->head = c;
+            hh->num_remaining_in_head_chunk = count;
+        }
+        --hh->num_remaining_in_head_chunk;
+        return (char *) (hh->head) + size * (nk_size)hh->num_remaining_in_head_chunk;
+    }
+}
+NK_INTERN void
+nk_tt__hheap_free(struct nk_tt__hheap *hh, void *p)
+{
+    *(void **) p = hh->first_free;
+    hh->first_free = p;
+}
+NK_INTERN void
+nk_tt__hheap_cleanup(struct nk_tt__hheap *hh)
+{
+    struct nk_tt__hheap_chunk *c = hh->head;
+    while (c) {
+        struct nk_tt__hheap_chunk *n = c->next;
+        hh->alloc.free(hh->alloc.userdata, c);
+        c = n;
+    }
+}
+NK_INTERN struct nk_tt__active_edge*
+nk_tt__new_active(struct nk_tt__hheap *hh, struct nk_tt__edge *e,
+    int off_x, float start_point)
+{
+    struct nk_tt__active_edge *z = (struct nk_tt__active_edge *)
+        nk_tt__hheap_alloc(hh, sizeof(*z));
+    float dxdy = (e->x1 - e->x0) / (e->y1 - e->y0);
+    /*STBTT_assert(e->y0 <= start_point); */
+    if (!z) return z;
+    z->fdx = dxdy;
+    z->fdy = (dxdy != 0) ? (1/dxdy): 0;
+    z->fx = e->x0 + dxdy * (start_point - e->y0);
+    z->fx -= (float)off_x;
+    z->direction = e->invert ? 1.0f : -1.0f;
+    z->sy = e->y0;
+    z->ey = e->y1;
+    z->next = 0;
+    return z;
+}
+NK_INTERN void
+nk_tt__handle_clipped_edge(float *scanline, int x, struct nk_tt__active_edge *e,
+    float x0, float y0, float x1, float y1)
+{
+    if (y0 == y1) return;
+    NK_ASSERT(y0 < y1);
+    NK_ASSERT(e->sy <= e->ey);
+    if (y0 > e->ey) return;
+    if (y1 < e->sy) return;
+    if (y0 < e->sy) {
+        x0 += (x1-x0) * (e->sy - y0) / (y1-y0);
+        y0 = e->sy;
+    }
+    if (y1 > e->ey) {
+        x1 += (x1-x0) * (e->ey - y1) / (y1-y0);
+        y1 = e->ey;
+    }
+
+    if (x0 == x) NK_ASSERT(x1 <= x+1);
+    else if (x0 == x+1) NK_ASSERT(x1 >= x);
+    else if (x0 <= x) NK_ASSERT(x1 <= x);
+    else if (x0 >= x+1) NK_ASSERT(x1 >= x+1);
+    else NK_ASSERT(x1 >= x && x1 <= x+1);
+
+    if (x0 <= x && x1 <= x)
+        scanline[x] += e->direction * (y1-y0);
+    else if (x0 >= x+1 && x1 >= x+1);
+    else {
+        NK_ASSERT(x0 >= x && x0 <= x+1 && x1 >= x && x1 <= x+1);
+        /* coverage = 1 - average x position */
+        scanline[x] += (float)e->direction * (float)(y1-y0) * (1.0f-((x0-(float)x)+(x1-(float)x))/2.0f);
+    }
+}
+NK_INTERN void
+nk_tt__fill_active_edges_new(float *scanline, float *scanline_fill, int len,
+    struct nk_tt__active_edge *e, float y_top)
+{
+    float y_bottom = y_top+1;
+    while (e)
+    {
+        /* brute force every pixel */
+        /* compute intersection points with top & bottom */
+        NK_ASSERT(e->ey >= y_top);
+        if (e->fdx == 0) {
+            float x0 = e->fx;
+            if (x0 < len) {
+                if (x0 >= 0) {
+                    nk_tt__handle_clipped_edge(scanline,(int) x0,e, x0,y_top, x0,y_bottom);
+                    nk_tt__handle_clipped_edge(scanline_fill-1,(int) x0+1,e, x0,y_top, x0,y_bottom);
+                } else {
+                    nk_tt__handle_clipped_edge(scanline_fill-1,0,e, x0,y_top, x0,y_bottom);
+                }
+            }
+        } else {
+            float x0 = e->fx;
+            float dx = e->fdx;
+            float xb = x0 + dx;
+            float x_top, x_bottom;
+            float y0,y1;
+            float dy = e->fdy;
+            NK_ASSERT(e->sy <= y_bottom && e->ey >= y_top);
+
+            /* compute endpoints of line segment clipped to this scanline (if the */
+            /* line segment starts on this scanline. x0 is the intersection of the */
+            /* line with y_top, but that may be off the line segment. */
+            if (e->sy > y_top) {
+                x_top = x0 + dx * (e->sy - y_top);
+                y0 = e->sy;
+            } else {
+                x_top = x0;
+                y0 = y_top;
+            }
+
+            if (e->ey < y_bottom) {
+                x_bottom = x0 + dx * (e->ey - y_top);
+                y1 = e->ey;
+            } else {
+                x_bottom = xb;
+                y1 = y_bottom;
+            }
+
+            if (x_top >= 0 && x_bottom >= 0 && x_top < len && x_bottom < len)
+            {
+                /* from here on, we don't have to range check x values */
+                if ((int) x_top == (int) x_bottom) {
+                    float height;
+                    /* simple case, only spans one pixel */
+                    int x = (int) x_top;
+                    height = y1 - y0;
+                    NK_ASSERT(x >= 0 && x < len);
+                    scanline[x] += e->direction * (1.0f-(((float)x_top - (float)x) + ((float)x_bottom-(float)x))/2.0f)  * (float)height;
+                    scanline_fill[x] += e->direction * (float)height; /* everything right of this pixel is filled */
+                } else {
+                    int x,x1,x2;
+                    float y_crossing, step, sign, area;
+                    /* covers 2+ pixels */
+                    if (x_top > x_bottom)
+                    {
+                        /* flip scanline vertically; signed area is the same */
+                        float t;
+                        y0 = y_bottom - (y0 - y_top);
+                        y1 = y_bottom - (y1 - y_top);
+                        t = y0; y0 = y1; y1 = t;
+                        t = x_bottom; x_bottom = x_top; x_top = t;
+                        dx = -dx;
+                        dy = -dy;
+                        t = x0; x0 = xb; xb = t;
+                    }
+
+                    x1 = (int) x_top;
+                    x2 = (int) x_bottom;
+                    /* compute intersection with y axis at x1+1 */
+                    y_crossing = ((float)x1+1 - (float)x0) * (float)dy + (float)y_top;
+
+                    sign = e->direction;
+                    /* area of the rectangle covered from y0..y_crossing */
+                    area = sign * (y_crossing-y0);
+                    /* area of the triangle (x_top,y0), (x+1,y0), (x+1,y_crossing) */
+                    scanline[x1] += area * (1.0f-((float)((float)x_top - (float)x1)+(float)(x1+1-x1))/2.0f);
+
+                    step = sign * dy;
+                    for (x = x1+1; x < x2; ++x) {
+                        scanline[x] += area + step/2;
+                        area += step;
+                    }
+                    y_crossing += (float)dy * (float)(x2 - (x1+1));
+
+                    scanline[x2] += area + sign * (1.0f-((float)(x2-x2)+((float)x_bottom-(float)x2))/2.0f) * (y1-y_crossing);
+                    scanline_fill[x2] += sign * (y1-y0);
+                }
+            }
+            else
+            {
+                /* if edge goes outside of box we're drawing, we require */
+                /* clipping logic. since this does not match the intended use */
+                /* of this library, we use a different, very slow brute */
+                /* force implementation */
+                int x;
+                for (x=0; x < len; ++x)
+                {
+                    /* cases: */
+                    /* */
+                    /* there can be up to two intersections with the pixel. any intersection */
+                    /* with left or right edges can be handled by splitting into two (or three) */
+                    /* regions. intersections with top & bottom do not necessitate case-wise logic. */
+                    /* */
+                    /* the old way of doing this found the intersections with the left & right edges, */
+                    /* then used some simple logic to produce up to three segments in sorted order */
+                    /* from top-to-bottom. however, this had a problem: if an x edge was epsilon */
+                    /* across the x border, then the corresponding y position might not be distinct */
+                    /* from the other y segment, and it might ignored as an empty segment. to avoid */
+                    /* that, we need to explicitly produce segments based on x positions. */
+
+                    /* rename variables to clear pairs */
+                    float ya = y_top;
+                    float x1 = (float) (x);
+                    float x2 = (float) (x+1);
+                    float x3 = xb;
+                    float y3 = y_bottom;
+                    float yb,y2;
+
+                    yb = ((float)x - x0) / dx + y_top;
+                    y2 = ((float)x+1 - x0) / dx + y_top;
+
+                    if (x0 < x1 && x3 > x2) {         /* three segments descending down-right */
+                        nk_tt__handle_clipped_edge(scanline,x,e, x0,ya, x1,yb);
+                        nk_tt__handle_clipped_edge(scanline,x,e, x1,yb, x2,y2);
+                        nk_tt__handle_clipped_edge(scanline,x,e, x2,y2, x3,y3);
+                    } else if (x3 < x1 && x0 > x2) {  /* three segments descending down-left */
+                        nk_tt__handle_clipped_edge(scanline,x,e, x0,ya, x2,y2);
+                        nk_tt__handle_clipped_edge(scanline,x,e, x2,y2, x1,yb);
+                        nk_tt__handle_clipped_edge(scanline,x,e, x1,yb, x3,y3);
+                    } else if (x0 < x1 && x3 > x1) {  /* two segments across x, down-right */
+                        nk_tt__handle_clipped_edge(scanline,x,e, x0,ya, x1,yb);
+                        nk_tt__handle_clipped_edge(scanline,x,e, x1,yb, x3,y3);
+                    } else if (x3 < x1 && x0 > x1) {  /* two segments across x, down-left */
+                        nk_tt__handle_clipped_edge(scanline,x,e, x0,ya, x1,yb);
+                        nk_tt__handle_clipped_edge(scanline,x,e, x1,yb, x3,y3);
+                    } else if (x0 < x2 && x3 > x2) {  /* two segments across x+1, down-right */
+                        nk_tt__handle_clipped_edge(scanline,x,e, x0,ya, x2,y2);
+                        nk_tt__handle_clipped_edge(scanline,x,e, x2,y2, x3,y3);
+                    } else if (x3 < x2 && x0 > x2) {  /* two segments across x+1, down-left */
+                        nk_tt__handle_clipped_edge(scanline,x,e, x0,ya, x2,y2);
+                        nk_tt__handle_clipped_edge(scanline,x,e, x2,y2, x3,y3);
+                    } else {  /* one segment */
+                        nk_tt__handle_clipped_edge(scanline,x,e, x0,ya, x3,y3);
+                    }
+                }
+            }
+        }
+        e = e->next;
+    }
+}
+NK_INTERN void
+nk_tt__rasterize_sorted_edges(struct nk_tt__bitmap *result, struct nk_tt__edge *e,
+    int n, int vsubsample, int off_x, int off_y, struct nk_allocator *alloc)
+{
+    /* directly AA rasterize edges w/o supersampling */
+    struct nk_tt__hheap hh;
+    struct nk_tt__active_edge *active = 0;
+    int y,j=0, i;
+    float scanline_data[129], *scanline, *scanline2;
+
+    NK_UNUSED(vsubsample);
+    nk_zero_struct(hh);
+    hh.alloc = *alloc;
+
+    if (result->w > 64)
+        scanline = (float *) alloc->alloc(alloc->userdata,0, (nk_size)(result->w*2+1) * sizeof(float));
+    else scanline = scanline_data;
+
+    scanline2 = scanline + result->w;
+    y = off_y;
+    e[n].y0 = (float) (off_y + result->h) + 1;
+
+    while (j < result->h)
+    {
+        /* find center of pixel for this scanline */
+        float scan_y_top    = (float)y + 0.0f;
+        float scan_y_bottom = (float)y + 1.0f;
+        struct nk_tt__active_edge **step = &active;
+
+        NK_MEMSET(scanline , 0, (nk_size)result->w*sizeof(scanline[0]));
+        NK_MEMSET(scanline2, 0, (nk_size)(result->w+1)*sizeof(scanline[0]));
+
+        /* update all active edges; */
+        /* remove all active edges that terminate before the top of this scanline */
+        while (*step) {
+            struct nk_tt__active_edge * z = *step;
+            if (z->ey <= scan_y_top) {
+                *step = z->next; /* delete from list */
+                NK_ASSERT(z->direction);
+                z->direction = 0;
+                nk_tt__hheap_free(&hh, z);
+            } else {
+                step = &((*step)->next); /* advance through list */
+            }
+        }
+
+        /* insert all edges that start before the bottom of this scanline */
+        while (e->y0 <= scan_y_bottom) {
+            if (e->y0 != e->y1) {
+                struct nk_tt__active_edge *z = nk_tt__new_active(&hh, e, off_x, scan_y_top);
+                if (z != 0) {
+                    NK_ASSERT(z->ey >= scan_y_top);
+                    /* insert at front */
+                    z->next = active;
+                    active = z;
+                }
+            }
+            ++e;
+        }
+
+        /* now process all active edges */
+        if (active)
+            nk_tt__fill_active_edges_new(scanline, scanline2+1, result->w, active, scan_y_top);
+
+        {
+            float sum = 0;
+            for (i=0; i < result->w; ++i) {
+                float k;
+                int m;
+                sum += scanline2[i];
+                k = scanline[i] + sum;
+                k = (float) NK_ABS(k) * 255.0f + 0.5f;
+                m = (int) k;
+                if (m > 255) m = 255;
+                result->pixels[j*result->stride + i] = (unsigned char) m;
+            }
+        }
+        /* advance all the edges */
+        step = &active;
+        while (*step) {
+            struct nk_tt__active_edge *z = *step;
+            z->fx += z->fdx; /* advance to position for current scanline */
+            step = &((*step)->next); /* advance through list */
+        }
+        ++y;
+        ++j;
+    }
+    nk_tt__hheap_cleanup(&hh);
+    if (scanline != scanline_data)
+        alloc->free(alloc->userdata, scanline);
+}
+NK_INTERN void
+nk_tt__sort_edges_ins_sort(struct nk_tt__edge *p, int n)
+{
+    int i,j;
+    #define NK_TT__COMPARE(a,b)  ((a)->y0 < (b)->y0)
+    for (i=1; i < n; ++i) {
+        struct nk_tt__edge t = p[i], *a = &t;
+        j = i;
+        while (j > 0) {
+            struct nk_tt__edge *b = &p[j-1];
+            int c = NK_TT__COMPARE(a,b);
+            if (!c) break;
+            p[j] = p[j-1];
+            --j;
+        }
+        if (i != j)
+            p[j] = t;
+    }
+}
+NK_INTERN void
+nk_tt__sort_edges_quicksort(struct nk_tt__edge *p, int n)
+{
+    /* threshold for transitioning to insertion sort */
+    while (n > 12) {
+        struct nk_tt__edge t;
+        int c01,c12,c,m,i,j;
+
+        /* compute median of three */
+        m = n >> 1;
+        c01 = NK_TT__COMPARE(&p[0],&p[m]);
+        c12 = NK_TT__COMPARE(&p[m],&p[n-1]);
+
+        /* if 0 >= mid >= end, or 0 < mid < end, then use mid */
+        if (c01 != c12) {
+            /* otherwise, we'll need to swap something else to middle */
+            int z;
+            c = NK_TT__COMPARE(&p[0],&p[n-1]);
+            /* 0>mid && mid<n:  0>n => n; 0<n => 0 */
+            /* 0<mid && mid>n:  0>n => 0; 0<n => n */
+            z = (c == c12) ? 0 : n-1;
+            t = p[z];
+            p[z] = p[m];
+            p[m] = t;
+        }
+
+        /* now p[m] is the median-of-three */
+        /* swap it to the beginning so it won't move around */
+        t = p[0];
+        p[0] = p[m];
+        p[m] = t;
+
+        /* partition loop */
+        i=1;
+        j=n-1;
+        for(;;) {
+            /* handling of equality is crucial here */
+            /* for sentinels & efficiency with duplicates */
+            for (;;++i) {
+                if (!NK_TT__COMPARE(&p[i], &p[0])) break;
+            }
+            for (;;--j) {
+                if (!NK_TT__COMPARE(&p[0], &p[j])) break;
+            }
+
+            /* make sure we haven't crossed */
+             if (i >= j) break;
+             t = p[i];
+             p[i] = p[j];
+             p[j] = t;
+
+            ++i;
+            --j;
+
+        }
+
+        /* recurse on smaller side, iterate on larger */
+        if (j < (n-i)) {
+            nk_tt__sort_edges_quicksort(p,j);
+            p = p+i;
+            n = n-i;
+        } else {
+            nk_tt__sort_edges_quicksort(p+i, n-i);
+            n = j;
+        }
+    }
+}
+NK_INTERN void
+nk_tt__sort_edges(struct nk_tt__edge *p, int n)
+{
+   nk_tt__sort_edges_quicksort(p, n);
+   nk_tt__sort_edges_ins_sort(p, n);
+}
+NK_INTERN void
+nk_tt__rasterize(struct nk_tt__bitmap *result, struct nk_tt__point *pts,
+    int *wcount, int windings, float scale_x, float scale_y,
+    float shift_x, float shift_y, int off_x, int off_y, int invert,
+    struct nk_allocator *alloc)
+{
+    float y_scale_inv = invert ? -scale_y : scale_y;
+    struct nk_tt__edge *e;
+    int n,i,j,k,m;
+    int vsubsample = 1;
+    /* vsubsample should divide 255 evenly; otherwise we won't reach full opacity */
+
+    /* now we have to blow out the windings into explicit edge lists */
+    n = 0;
+    for (i=0; i < windings; ++i)
+        n += wcount[i];
+
+    e = (struct nk_tt__edge*)
+       alloc->alloc(alloc->userdata, 0,(sizeof(*e) * (nk_size)(n+1)));
+    if (e == 0) return;
+    n = 0;
+
+    m=0;
+    for (i=0; i < windings; ++i)
+    {
+        struct nk_tt__point *p = pts + m;
+        m += wcount[i];
+        j = wcount[i]-1;
+        for (k=0; k < wcount[i]; j=k++) {
+            int a=k,b=j;
+            /* skip the edge if horizontal */
+            if (p[j].y == p[k].y)
+                continue;
+
+            /* add edge from j to k to the list */
+            e[n].invert = 0;
+            if (invert ? p[j].y > p[k].y : p[j].y < p[k].y) {
+                e[n].invert = 1;
+                a=j,b=k;
+            }
+            e[n].x0 = p[a].x * scale_x + shift_x;
+            e[n].y0 = (p[a].y * y_scale_inv + shift_y) * (float)vsubsample;
+            e[n].x1 = p[b].x * scale_x + shift_x;
+            e[n].y1 = (p[b].y * y_scale_inv + shift_y) * (float)vsubsample;
+            ++n;
+        }
+    }
+
+    /* now sort the edges by their highest point (should snap to integer, and then by x) */
+    /*STBTT_sort(e, n, sizeof(e[0]), nk_tt__edge_compare); */
+    nk_tt__sort_edges(e, n);
+    /* now, traverse the scanlines and find the intersections on each scanline, use xor winding rule */
+    nk_tt__rasterize_sorted_edges(result, e, n, vsubsample, off_x, off_y, alloc);
+    alloc->free(alloc->userdata, e);
+}
+NK_INTERN void
+nk_tt__add_point(struct nk_tt__point *points, int n, float x, float y)
+{
+    if (!points) return; /* during first pass, it's unallocated */
+    points[n].x = x;
+    points[n].y = y;
+}
+NK_INTERN int
+nk_tt__tesselate_curve(struct nk_tt__point *points, int *num_points,
+    float x0, float y0, float x1, float y1, float x2, float y2,
+    float objspace_flatness_squared, int n)
+{
+    /* tesselate until threshold p is happy...
+     * @TODO warped to compensate for non-linear stretching */
+    /* midpoint */
+    float mx = (x0 + 2*x1 + x2)/4;
+    float my = (y0 + 2*y1 + y2)/4;
+    /* versus directly drawn line */
+    float dx = (x0+x2)/2 - mx;
+    float dy = (y0+y2)/2 - my;
+    if (n > 16) /* 65536 segments on one curve better be enough! */
+        return 1;
+
+    /* half-pixel error allowed... need to be smaller if AA */
+    if (dx*dx+dy*dy > objspace_flatness_squared) {
+        nk_tt__tesselate_curve(points, num_points, x0,y0,
+            (x0+x1)/2.0f,(y0+y1)/2.0f, mx,my, objspace_flatness_squared,n+1);
+        nk_tt__tesselate_curve(points, num_points, mx,my,
+            (x1+x2)/2.0f,(y1+y2)/2.0f, x2,y2, objspace_flatness_squared,n+1);
+    } else {
+        nk_tt__add_point(points, *num_points,x2,y2);
+        *num_points = *num_points+1;
+    }
+    return 1;
+}
+NK_INTERN struct nk_tt__point*
+nk_tt_FlattenCurves(struct nk_tt_vertex *vertices, int num_verts,
+    float objspace_flatness, int **contour_lengths, int *num_contours,
+    struct nk_allocator *alloc)
+{
+    /* returns number of contours */
+    struct nk_tt__point *points=0;
+    int num_points=0;
+    float objspace_flatness_squared = objspace_flatness * objspace_flatness;
+    int i;
+    int n=0;
+    int start=0;
+    int pass;
+
+    /* count how many "moves" there are to get the contour count */
+    for (i=0; i < num_verts; ++i)
+        if (vertices[i].type == NK_TT_vmove) ++n;
+
+    *num_contours = n;
+    if (n == 0) return 0;
+
+    *contour_lengths = (int *)
+        alloc->alloc(alloc->userdata,0, (sizeof(**contour_lengths) * (nk_size)n));
+    if (*contour_lengths == 0) {
+        *num_contours = 0;
+        return 0;
+    }
+
+    /* make two passes through the points so we don't need to realloc */
+    for (pass=0; pass < 2; ++pass)
+    {
+        float x=0,y=0;
+        if (pass == 1) {
+            points = (struct nk_tt__point *)
+                alloc->alloc(alloc->userdata,0, (nk_size)num_points * sizeof(points[0]));
+            if (points == 0) goto error;
+        }
+        num_points = 0;
+        n= -1;
+
+        for (i=0; i < num_verts; ++i)
+        {
+            switch (vertices[i].type) {
+            case NK_TT_vmove:
+                /* start the next contour */
+                if (n >= 0)
+                (*contour_lengths)[n] = num_points - start;
+                ++n;
+                start = num_points;
+
+                x = vertices[i].x, y = vertices[i].y;
+                nk_tt__add_point(points, num_points++, x,y);
+                break;
+            case NK_TT_vline:
+               x = vertices[i].x, y = vertices[i].y;
+               nk_tt__add_point(points, num_points++, x, y);
+               break;
+            case NK_TT_vcurve:
+               nk_tt__tesselate_curve(points, &num_points, x,y,
+                                        vertices[i].cx, vertices[i].cy,
+                                        vertices[i].x,  vertices[i].y,
+                                        objspace_flatness_squared, 0);
+               x = vertices[i].x, y = vertices[i].y;
+               break;
+            default: break;
+         }
+      }
+      (*contour_lengths)[n] = num_points - start;
+   }
+   return points;
+
+error:
+   alloc->free(alloc->userdata, points);
+   alloc->free(alloc->userdata, *contour_lengths);
+   *contour_lengths = 0;
+   *num_contours = 0;
+   return 0;
+}
+NK_INTERN void
+nk_tt_Rasterize(struct nk_tt__bitmap *result, float flatness_in_pixels,
+    struct nk_tt_vertex *vertices, int num_verts,
+    float scale_x, float scale_y, float shift_x, float shift_y,
+    int x_off, int y_off, int invert, struct nk_allocator *alloc)
+{
+    float scale = scale_x > scale_y ? scale_y : scale_x;
+    int winding_count, *winding_lengths;
+    struct nk_tt__point *windings = nk_tt_FlattenCurves(vertices, num_verts,
+        flatness_in_pixels / scale, &winding_lengths, &winding_count, alloc);
+
+    NK_ASSERT(alloc);
+    if (windings) {
+        nk_tt__rasterize(result, windings, winding_lengths, winding_count,
+            scale_x, scale_y, shift_x, shift_y, x_off, y_off, invert, alloc);
+        alloc->free(alloc->userdata, winding_lengths);
+        alloc->free(alloc->userdata, windings);
+    }
+}
+NK_INTERN void
+nk_tt_MakeGlyphBitmapSubpixel(const struct nk_tt_fontinfo *info, unsigned char *output,
+    int out_w, int out_h, int out_stride, float scale_x, float scale_y,
+    float shift_x, float shift_y, int glyph, struct nk_allocator *alloc)
+{
+    int ix0,iy0;
+    struct nk_tt_vertex *vertices;
+    int num_verts = nk_tt_GetGlyphShape(info, alloc, glyph, &vertices);
+    struct nk_tt__bitmap gbm;
+
+    nk_tt_GetGlyphBitmapBoxSubpixel(info, glyph, scale_x, scale_y, shift_x,
+        shift_y, &ix0,&iy0,0,0);
+    gbm.pixels = output;
+    gbm.w = out_w;
+    gbm.h = out_h;
+    gbm.stride = out_stride;
+
+    if (gbm.w && gbm.h)
+        nk_tt_Rasterize(&gbm, 0.35f, vertices, num_verts, scale_x, scale_y,
+            shift_x, shift_y, ix0,iy0, 1, alloc);
+    alloc->free(alloc->userdata, vertices);
+}
+
+/*-------------------------------------------------------------
+ *                          Bitmap baking
+ * --------------------------------------------------------------*/
+NK_INTERN int
+nk_tt_PackBegin(struct nk_tt_pack_context *spc, unsigned char *pixels,
+    int pw, int ph, int stride_in_bytes, int padding, struct nk_allocator *alloc)
+{
+    int num_nodes = pw - padding;
+    struct nk_rp_context *context = (struct nk_rp_context *)
+        alloc->alloc(alloc->userdata,0, sizeof(*context));
+    struct nk_rp_node *nodes = (struct nk_rp_node*)
+        alloc->alloc(alloc->userdata,0, (sizeof(*nodes  ) * (nk_size)num_nodes));
+
+    if (context == 0 || nodes == 0) {
+        if (context != 0) alloc->free(alloc->userdata, context);
+        if (nodes   != 0) alloc->free(alloc->userdata, nodes);
+        return 0;
+    }
+
+    spc->width = pw;
+    spc->height = ph;
+    spc->pixels = pixels;
+    spc->pack_info = context;
+    spc->nodes = nodes;
+    spc->padding = padding;
+    spc->stride_in_bytes = (stride_in_bytes != 0) ? stride_in_bytes : pw;
+    spc->h_oversample = 1;
+    spc->v_oversample = 1;
+
+    nk_rp_init_target(context, pw-padding, ph-padding, nodes, num_nodes);
+    if (pixels)
+        NK_MEMSET(pixels, 0, (nk_size)(pw*ph)); /* background of 0 around pixels */
+    return 1;
+}
+NK_INTERN void
+nk_tt_PackEnd(struct nk_tt_pack_context *spc, struct nk_allocator *alloc)
+{
+    alloc->free(alloc->userdata, spc->nodes);
+    alloc->free(alloc->userdata, spc->pack_info);
+}
+NK_INTERN void
+nk_tt_PackSetOversampling(struct nk_tt_pack_context *spc,
+    unsigned int h_oversample, unsigned int v_oversample)
+{
+   NK_ASSERT(h_oversample <= NK_TT_MAX_OVERSAMPLE);
+   NK_ASSERT(v_oversample <= NK_TT_MAX_OVERSAMPLE);
+   if (h_oversample <= NK_TT_MAX_OVERSAMPLE)
+      spc->h_oversample = h_oversample;
+   if (v_oversample <= NK_TT_MAX_OVERSAMPLE)
+      spc->v_oversample = v_oversample;
+}
+NK_INTERN void
+nk_tt__h_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes,
+    int kernel_width)
+{
+    unsigned char buffer[NK_TT_MAX_OVERSAMPLE];
+    int safe_w = w - kernel_width;
+    int j;
+
+    for (j=0; j < h; ++j)
+    {
+        int i;
+        unsigned int total;
+        NK_MEMSET(buffer, 0, (nk_size)kernel_width);
+
+        total = 0;
+
+        /* make kernel_width a constant in common cases so compiler can optimize out the divide */
+        switch (kernel_width) {
+        case 2:
+            for (i=0; i <= safe_w; ++i) {
+                total += (unsigned int)(pixels[i] - buffer[i & NK_TT__OVER_MASK]);
+                buffer[(i+kernel_width) & NK_TT__OVER_MASK] = pixels[i];
+                pixels[i] = (unsigned char) (total / 2);
+            }
+            break;
+        case 3:
+            for (i=0; i <= safe_w; ++i) {
+                total += (unsigned int)(pixels[i] - buffer[i & NK_TT__OVER_MASK]);
+                buffer[(i+kernel_width) & NK_TT__OVER_MASK] = pixels[i];
+                pixels[i] = (unsigned char) (total / 3);
+            }
+            break;
+        case 4:
+            for (i=0; i <= safe_w; ++i) {
+                total += (unsigned int)pixels[i] - buffer[i & NK_TT__OVER_MASK];
+                buffer[(i+kernel_width) & NK_TT__OVER_MASK] = pixels[i];
+                pixels[i] = (unsigned char) (total / 4);
+            }
+            break;
+        case 5:
+            for (i=0; i <= safe_w; ++i) {
+                total += (unsigned int)(pixels[i] - buffer[i & NK_TT__OVER_MASK]);
+                buffer[(i+kernel_width) & NK_TT__OVER_MASK] = pixels[i];
+                pixels[i] = (unsigned char) (total / 5);
+            }
+            break;
+        default:
+            for (i=0; i <= safe_w; ++i) {
+                total += (unsigned int)(pixels[i] - buffer[i & NK_TT__OVER_MASK]);
+                buffer[(i+kernel_width) & NK_TT__OVER_MASK] = pixels[i];
+                pixels[i] = (unsigned char) (total / (unsigned int)kernel_width);
+            }
+            break;
+        }
+
+        for (; i < w; ++i) {
+            NK_ASSERT(pixels[i] == 0);
+            total -= (unsigned int)(buffer[i & NK_TT__OVER_MASK]);
+            pixels[i] = (unsigned char) (total / (unsigned int)kernel_width);
+        }
+        pixels += stride_in_bytes;
+    }
+}
+NK_INTERN void
+nk_tt__v_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes,
+    int kernel_width)
+{
+    unsigned char buffer[NK_TT_MAX_OVERSAMPLE];
+    int safe_h = h - kernel_width;
+    int j;
+
+    for (j=0; j < w; ++j)
+    {
+        int i;
+        unsigned int total;
+        NK_MEMSET(buffer, 0, (nk_size)kernel_width);
+
+        total = 0;
+
+        /* make kernel_width a constant in common cases so compiler can optimize out the divide */
+        switch (kernel_width) {
+        case 2:
+            for (i=0; i <= safe_h; ++i) {
+                total += (unsigned int)(pixels[i*stride_in_bytes] - buffer[i & NK_TT__OVER_MASK]);
+                buffer[(i+kernel_width) & NK_TT__OVER_MASK] = pixels[i*stride_in_bytes];
+                pixels[i*stride_in_bytes] = (unsigned char) (total / 2);
+            }
+            break;
+         case 3:
+            for (i=0; i <= safe_h; ++i) {
+                total += (unsigned int)(pixels[i*stride_in_bytes] - buffer[i & NK_TT__OVER_MASK]);
+                buffer[(i+kernel_width) & NK_TT__OVER_MASK] = pixels[i*stride_in_bytes];
+                pixels[i*stride_in_bytes] = (unsigned char) (total / 3);
+            }
+            break;
+         case 4:
+            for (i=0; i <= safe_h; ++i) {
+                total += (unsigned int)(pixels[i*stride_in_bytes] - buffer[i & NK_TT__OVER_MASK]);
+                buffer[(i+kernel_width) & NK_TT__OVER_MASK] = pixels[i*stride_in_bytes];
+                pixels[i*stride_in_bytes] = (unsigned char) (total / 4);
+            }
+            break;
+         case 5:
+            for (i=0; i <= safe_h; ++i) {
+                total += (unsigned int)(pixels[i*stride_in_bytes] - buffer[i & NK_TT__OVER_MASK]);
+                buffer[(i+kernel_width) & NK_TT__OVER_MASK] = pixels[i*stride_in_bytes];
+                pixels[i*stride_in_bytes] = (unsigned char) (total / 5);
+            }
+            break;
+         default:
+            for (i=0; i <= safe_h; ++i) {
+                total += (unsigned int)(pixels[i*stride_in_bytes] - buffer[i & NK_TT__OVER_MASK]);
+                buffer[(i+kernel_width) & NK_TT__OVER_MASK] = pixels[i*stride_in_bytes];
+                pixels[i*stride_in_bytes] = (unsigned char) (total / (unsigned int)kernel_width);
+            }
+            break;
+        }
+
+        for (; i < h; ++i) {
+            NK_ASSERT(pixels[i*stride_in_bytes] == 0);
+            total -= (unsigned int)(buffer[i & NK_TT__OVER_MASK]);
+            pixels[i*stride_in_bytes] = (unsigned char) (total / (unsigned int)kernel_width);
+        }
+        pixels += 1;
+    }
+}
+NK_INTERN float
+nk_tt__oversample_shift(int oversample)
+{
+    if (!oversample)
+        return 0.0f;
+
+    /* The prefilter is a box filter of width "oversample", */
+    /* which shifts phase by (oversample - 1)/2 pixels in */
+    /* oversampled space. We want to shift in the opposite */
+    /* direction to counter this. */
+    return (float)-(oversample - 1) / (2.0f * (float)oversample);
+}
+NK_INTERN int
+nk_tt_PackFontRangesGatherRects(struct nk_tt_pack_context *spc,
+    struct nk_tt_fontinfo *info, struct nk_tt_pack_range *ranges,
+    int num_ranges, struct nk_rp_rect *rects)
+{
+    /* rects array must be big enough to accommodate all characters in the given ranges */
+    int i,j,k;
+    k = 0;
+
+    for (i=0; i < num_ranges; ++i) {
+        float fh = ranges[i].font_size;
+        float scale = (fh > 0) ? nk_tt_ScaleForPixelHeight(info, fh):
+            nk_tt_ScaleForMappingEmToPixels(info, -fh);
+        ranges[i].h_oversample = (unsigned char) spc->h_oversample;
+        ranges[i].v_oversample = (unsigned char) spc->v_oversample;
+        for (j=0; j < ranges[i].num_chars; ++j) {
+            int x0,y0,x1,y1;
+            int codepoint = ranges[i].first_unicode_codepoint_in_range ?
+                ranges[i].first_unicode_codepoint_in_range + j :
+                ranges[i].array_of_unicode_codepoints[j];
+
+            int glyph = nk_tt_FindGlyphIndex(info, codepoint);
+            nk_tt_GetGlyphBitmapBoxSubpixel(info,glyph, scale * (float)spc->h_oversample,
+                scale * (float)spc->v_oversample, 0,0, &x0,&y0,&x1,&y1);
+            rects[k].w = (nk_rp_coord) (x1-x0 + spc->padding + (int)spc->h_oversample-1);
+            rects[k].h = (nk_rp_coord) (y1-y0 + spc->padding + (int)spc->v_oversample-1);
+            ++k;
+        }
+    }
+    return k;
+}
+NK_INTERN int
+nk_tt_PackFontRangesRenderIntoRects(struct nk_tt_pack_context *spc,
+    struct nk_tt_fontinfo *info, struct nk_tt_pack_range *ranges,
+    int num_ranges, struct nk_rp_rect *rects, struct nk_allocator *alloc)
+{
+    int i,j,k, return_value = 1;
+    /* save current values */
+    int old_h_over = (int)spc->h_oversample;
+    int old_v_over = (int)spc->v_oversample;
+    /* rects array must be big enough to accommodate all characters in the given ranges */
+
+    k = 0;
+    for (i=0; i < num_ranges; ++i)
+    {
+        float fh = ranges[i].font_size;
+        float recip_h,recip_v,sub_x,sub_y;
+        float scale = fh > 0 ? nk_tt_ScaleForPixelHeight(info, fh):
+            nk_tt_ScaleForMappingEmToPixels(info, -fh);
+
+        spc->h_oversample = ranges[i].h_oversample;
+        spc->v_oversample = ranges[i].v_oversample;
+
+        recip_h = 1.0f / (float)spc->h_oversample;
+        recip_v = 1.0f / (float)spc->v_oversample;
+
+        sub_x = nk_tt__oversample_shift((int)spc->h_oversample);
+        sub_y = nk_tt__oversample_shift((int)spc->v_oversample);
+
+        for (j=0; j < ranges[i].num_chars; ++j)
+        {
+            struct nk_rp_rect *r = &rects[k];
+            if (r->was_packed)
+            {
+                struct nk_tt_packedchar *bc = &ranges[i].chardata_for_range[j];
+                int advance, lsb, x0,y0,x1,y1;
+                int codepoint = ranges[i].first_unicode_codepoint_in_range ?
+                    ranges[i].first_unicode_codepoint_in_range + j :
+                    ranges[i].array_of_unicode_codepoints[j];
+                int glyph = nk_tt_FindGlyphIndex(info, codepoint);
+                nk_rp_coord pad = (nk_rp_coord) spc->padding;
+
+                /* pad on left and top */
+                r->x = (nk_rp_coord)((int)r->x + (int)pad);
+                r->y = (nk_rp_coord)((int)r->y + (int)pad);
+                r->w = (nk_rp_coord)((int)r->w - (int)pad);
+                r->h = (nk_rp_coord)((int)r->h - (int)pad);
+
+                nk_tt_GetGlyphHMetrics(info, glyph, &advance, &lsb);
+                nk_tt_GetGlyphBitmapBox(info, glyph, scale * (float)spc->h_oversample,
+                        (scale * (float)spc->v_oversample), &x0,&y0,&x1,&y1);
+                nk_tt_MakeGlyphBitmapSubpixel(info, spc->pixels + r->x + r->y*spc->stride_in_bytes,
+                    (int)(r->w - spc->h_oversample+1), (int)(r->h - spc->v_oversample+1),
+                    spc->stride_in_bytes, scale * (float)spc->h_oversample,
+                    scale * (float)spc->v_oversample, 0,0, glyph, alloc);
+
+                if (spc->h_oversample > 1)
+                   nk_tt__h_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
+                        r->w, r->h, spc->stride_in_bytes, (int)spc->h_oversample);
+
+                if (spc->v_oversample > 1)
+                   nk_tt__v_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
+                        r->w, r->h, spc->stride_in_bytes, (int)spc->v_oversample);
+
+                bc->x0       = (nk_ushort)  r->x;
+                bc->y0       = (nk_ushort)  r->y;
+                bc->x1       = (nk_ushort) (r->x + r->w);
+                bc->y1       = (nk_ushort) (r->y + r->h);
+                bc->xadvance = scale * (float)advance;
+                bc->xoff     = (float)  x0 * recip_h + sub_x;
+                bc->yoff     = (float)  y0 * recip_v + sub_y;
+                bc->xoff2    = ((float)x0 + r->w) * recip_h + sub_x;
+                bc->yoff2    = ((float)y0 + r->h) * recip_v + sub_y;
+            } else {
+                return_value = 0; /* if any fail, report failure */
+            }
+            ++k;
+        }
+    }
+    /* restore original values */
+    spc->h_oversample = (unsigned int)old_h_over;
+    spc->v_oversample = (unsigned int)old_v_over;
+    return return_value;
+}
+NK_INTERN void
+nk_tt_GetPackedQuad(struct nk_tt_packedchar *chardata, int pw, int ph,
+    int char_index, float *xpos, float *ypos, struct nk_tt_aligned_quad *q,
+    int align_to_integer)
+{
+    float ipw = 1.0f / (float)pw, iph = 1.0f / (float)ph;
+    struct nk_tt_packedchar *b = (struct nk_tt_packedchar*)(chardata + char_index);
+    if (align_to_integer) {
+        int tx = nk_ifloorf((*xpos + b->xoff) + 0.5f);
+        int ty = nk_ifloorf((*ypos + b->yoff) + 0.5f);
+
+        float x = (float)tx;
+        float y = (float)ty;
+
+        q->x0 = x;
+        q->y0 = y;
+        q->x1 = x + b->xoff2 - b->xoff;
+        q->y1 = y + b->yoff2 - b->yoff;
+    } else {
+        q->x0 = *xpos + b->xoff;
+        q->y0 = *ypos + b->yoff;
+        q->x1 = *xpos + b->xoff2;
+        q->y1 = *ypos + b->yoff2;
+    }
+    q->s0 = b->x0 * ipw;
+    q->t0 = b->y0 * iph;
+    q->s1 = b->x1 * ipw;
+    q->t1 = b->y1 * iph;
+    *xpos += b->xadvance;
+}
+
+/* -------------------------------------------------------------
+ *
+ *                          FONT BAKING
+ *
+ * --------------------------------------------------------------*/
+struct nk_font_bake_data {
+    struct nk_tt_fontinfo info;
+    struct nk_rp_rect *rects;
+    struct nk_tt_pack_range *ranges;
+    nk_rune range_count;
+};
+
+struct nk_font_baker {
+    struct nk_allocator alloc;
+    struct nk_tt_pack_context spc;
+    struct nk_font_bake_data *build;
+    struct nk_tt_packedchar *packed_chars;
+    struct nk_rp_rect *rects;
+    struct nk_tt_pack_range *ranges;
+};
+
+NK_GLOBAL const nk_size nk_rect_align = NK_ALIGNOF(struct nk_rp_rect);
+NK_GLOBAL const nk_size nk_range_align = NK_ALIGNOF(struct nk_tt_pack_range);
+NK_GLOBAL const nk_size nk_char_align = NK_ALIGNOF(struct nk_tt_packedchar);
+NK_GLOBAL const nk_size nk_build_align = NK_ALIGNOF(struct nk_font_bake_data);
+NK_GLOBAL const nk_size nk_baker_align = NK_ALIGNOF(struct nk_font_baker);
+
+NK_INTERN int
+nk_range_count(const nk_rune *range)
+{
+    const nk_rune *iter = range;
+    NK_ASSERT(range);
+    if (!range) return 0;
+    while (*(iter++) != 0);
+    return (iter == range) ? 0 : (int)((iter - range)/2);
+}
+NK_INTERN int
+nk_range_glyph_count(const nk_rune *range, int count)
+{
+    int i = 0;
+    int total_glyphs = 0;
+    for (i = 0; i < count; ++i) {
+        int diff;
+        nk_rune f = range[(i*2)+0];
+        nk_rune t = range[(i*2)+1];
+        NK_ASSERT(t >= f);
+        diff = (int)((t - f) + 1);
+        total_glyphs += diff;
+    }
+    return total_glyphs;
+}
+NK_API const nk_rune*
+nk_font_default_glyph_ranges(void)
+{
+    NK_STORAGE const nk_rune ranges[] = {0x0020, 0x00FF, 0};
+    return ranges;
+}
+NK_API const nk_rune*
+nk_font_chinese_glyph_ranges(void)
+{
+    NK_STORAGE const nk_rune ranges[] = {
+        0x0020, 0x00FF,
+        0x3000, 0x30FF,
+        0x31F0, 0x31FF,
+        0xFF00, 0xFFEF,
+        0x4e00, 0x9FAF,
+        0
+    };
+    return ranges;
+}
+NK_API const nk_rune*
+nk_font_cyrillic_glyph_ranges(void)
+{
+    NK_STORAGE const nk_rune ranges[] = {
+        0x0020, 0x00FF,
+        0x0400, 0x052F,
+        0x2DE0, 0x2DFF,
+        0xA640, 0xA69F,
+        0
+    };
+    return ranges;
+}
+NK_API const nk_rune*
+nk_font_korean_glyph_ranges(void)
+{
+    NK_STORAGE const nk_rune ranges[] = {
+        0x0020, 0x00FF,
+        0x3131, 0x3163,
+        0xAC00, 0xD79D,
+        0
+    };
+    return ranges;
+}
+NK_INTERN void
+nk_font_baker_memory(nk_size *temp, int *glyph_count,
+    struct nk_font_config *config_list, int count)
+{
+    int range_count = 0;
+    int total_range_count = 0;
+    struct nk_font_config *iter, *i;
+
+    NK_ASSERT(config_list);
+    NK_ASSERT(glyph_count);
+    if (!config_list) {
+        *temp = 0;
+        *glyph_count = 0;
+        return;
+    }
+    *glyph_count = 0;
+    for (iter = config_list; iter; iter = iter->next) {
+        i = iter;
+        do {if (!i->range) iter->range = nk_font_default_glyph_ranges();
+            range_count = nk_range_count(i->range);
+            total_range_count += range_count;
+            *glyph_count += nk_range_glyph_count(i->range, range_count);
+        } while ((i = i->n) != iter);
+    }
+    *temp = (nk_size)*glyph_count * sizeof(struct nk_rp_rect);
+    *temp += (nk_size)total_range_count * sizeof(struct nk_tt_pack_range);
+    *temp += (nk_size)*glyph_count * sizeof(struct nk_tt_packedchar);
+    *temp += (nk_size)count * sizeof(struct nk_font_bake_data);
+    *temp += sizeof(struct nk_font_baker);
+    *temp += nk_rect_align + nk_range_align + nk_char_align;
+    *temp += nk_build_align + nk_baker_align;
+}
+NK_INTERN struct nk_font_baker*
+nk_font_baker(void *memory, int glyph_count, int count, struct nk_allocator *alloc)
+{
+    struct nk_font_baker *baker;
+    if (!memory) return 0;
+    /* setup baker inside a memory block  */
+    baker = (struct nk_font_baker*)NK_ALIGN_PTR(memory, nk_baker_align);
+    baker->build = (struct nk_font_bake_data*)NK_ALIGN_PTR((baker + 1), nk_build_align);
+    baker->packed_chars = (struct nk_tt_packedchar*)NK_ALIGN_PTR((baker->build + count), nk_char_align);
+    baker->rects = (struct nk_rp_rect*)NK_ALIGN_PTR((baker->packed_chars + glyph_count), nk_rect_align);
+    baker->ranges = (struct nk_tt_pack_range*)NK_ALIGN_PTR((baker->rects + glyph_count), nk_range_align);
+    baker->alloc = *alloc;
+    return baker;
+}
+NK_INTERN int
+nk_font_bake_pack(struct nk_font_baker *baker,
+    nk_size *image_memory, int *width, int *height, struct nk_recti *custom,
+    const struct nk_font_config *config_list, int count,
+    struct nk_allocator *alloc)
+{
+    NK_STORAGE const nk_size max_height = 1024 * 32;
+    const struct nk_font_config *config_iter, *it;
+    int total_glyph_count = 0;
+    int total_range_count = 0;
+    int range_count = 0;
+    int i = 0;
+
+    NK_ASSERT(image_memory);
+    NK_ASSERT(width);
+    NK_ASSERT(height);
+    NK_ASSERT(config_list);
+    NK_ASSERT(count);
+    NK_ASSERT(alloc);
+
+    if (!image_memory || !width || !height || !config_list || !count) return nk_false;
+    for (config_iter = config_list; config_iter; config_iter = config_iter->next) {
+        it = config_iter;
+        do {range_count = nk_range_count(it->range);
+            total_range_count += range_count;
+            total_glyph_count += nk_range_glyph_count(it->range, range_count);
+        } while ((it = it->n) != config_iter);
+    }
+    /* setup font baker from temporary memory */
+    for (config_iter = config_list; config_iter; config_iter = config_iter->next) {
+        it = config_iter;
+        do {if (!nk_tt_InitFont(&baker->build[i++].info, (const unsigned char*)it->ttf_blob, 0))
+            return nk_false;
+        } while ((it = it->n) != config_iter);
+    }
+    *height = 0;
+    *width = (total_glyph_count > 1000) ? 1024 : 512;
+    nk_tt_PackBegin(&baker->spc, 0, (int)*width, (int)max_height, 0, 1, alloc);
+    {
+        int input_i = 0;
+        int range_n = 0;
+        int rect_n = 0;
+        int char_n = 0;
+
+        if (custom) {
+            /* pack custom user data first so it will be in the upper left corner*/
+            struct nk_rp_rect custom_space;
+            nk_zero(&custom_space, sizeof(custom_space));
+            custom_space.w = (nk_rp_coord)(custom->w);
+            custom_space.h = (nk_rp_coord)(custom->h);
+
+            nk_tt_PackSetOversampling(&baker->spc, 1, 1);
+            nk_rp_pack_rects((struct nk_rp_context*)baker->spc.pack_info, &custom_space, 1);
+            *height = NK_MAX(*height, (int)(custom_space.y + custom_space.h));
+
+            custom->x = (short)custom_space.x;
+            custom->y = (short)custom_space.y;
+            custom->w = (short)custom_space.w;
+            custom->h = (short)custom_space.h;
+        }
+
+        /* first font pass: pack all glyphs */
+        for (input_i = 0, config_iter = config_list; input_i < count && config_iter;
+            config_iter = config_iter->next) {
+            it = config_iter;
+            do {int n = 0;
+                int glyph_count;
+                const nk_rune *in_range;
+                const struct nk_font_config *cfg = it;
+                struct nk_font_bake_data *tmp = &baker->build[input_i++];
+
+                /* count glyphs + ranges in current font */
+                glyph_count = 0; range_count = 0;
+                for (in_range = cfg->range; in_range[0] && in_range[1]; in_range += 2) {
+                    glyph_count += (int)(in_range[1] - in_range[0]) + 1;
+                    range_count++;
+                }
+
+                /* setup ranges  */
+                tmp->ranges = baker->ranges + range_n;
+                tmp->range_count = (nk_rune)range_count;
+                range_n += range_count;
+                for (i = 0; i < range_count; ++i) {
+                    in_range = &cfg->range[i * 2];
+                    tmp->ranges[i].font_size = cfg->size;
+                    tmp->ranges[i].first_unicode_codepoint_in_range = (int)in_range[0];
+                    tmp->ranges[i].num_chars = (int)(in_range[1]- in_range[0]) + 1;
+                    tmp->ranges[i].chardata_for_range = baker->packed_chars + char_n;
+                    char_n += tmp->ranges[i].num_chars;
+                }
+
+                /* pack */
+                tmp->rects = baker->rects + rect_n;
+                rect_n += glyph_count;
+                nk_tt_PackSetOversampling(&baker->spc, cfg->oversample_h, cfg->oversample_v);
+                n = nk_tt_PackFontRangesGatherRects(&baker->spc, &tmp->info,
+                    tmp->ranges, (int)tmp->range_count, tmp->rects);
+                nk_rp_pack_rects((struct nk_rp_context*)baker->spc.pack_info, tmp->rects, (int)n);
+
+                /* texture height */
+                for (i = 0; i < n; ++i) {
+                    if (tmp->rects[i].was_packed)
+                        *height = NK_MAX(*height, tmp->rects[i].y + tmp->rects[i].h);
+                }
+            } while ((it = it->n) != config_iter);
+        }
+        NK_ASSERT(rect_n == total_glyph_count);
+        NK_ASSERT(char_n == total_glyph_count);
+        NK_ASSERT(range_n == total_range_count);
+    }
+    *height = (int)nk_round_up_pow2((nk_uint)*height);
+    *image_memory = (nk_size)(*width) * (nk_size)(*height);
+    return nk_true;
+}
+NK_INTERN void
+nk_font_bake(struct nk_font_baker *baker, void *image_memory, int width, int height,
+    struct nk_font_glyph *glyphs, int glyphs_count,
+    const struct nk_font_config *config_list, int font_count)
+{
+    int input_i = 0;
+    nk_rune glyph_n = 0;
+    const struct nk_font_config *config_iter;
+    const struct nk_font_config *it;
+
+    NK_ASSERT(image_memory);
+    NK_ASSERT(width);
+    NK_ASSERT(height);
+    NK_ASSERT(config_list);
+    NK_ASSERT(baker);
+    NK_ASSERT(font_count);
+    NK_ASSERT(glyphs_count);
+    if (!image_memory || !width || !height || !config_list ||
+        !font_count || !glyphs || !glyphs_count)
+        return;
+
+    /* second font pass: render glyphs */
+    nk_zero(image_memory, (nk_size)((nk_size)width * (nk_size)height));
+    baker->spc.pixels = (unsigned char*)image_memory;
+    baker->spc.height = (int)height;
+    for (input_i = 0, config_iter = config_list; input_i < font_count && config_iter;
+        config_iter = config_iter->next) {
+        it = config_iter;
+        do {const struct nk_font_config *cfg = it;
+            struct nk_font_bake_data *tmp = &baker->build[input_i++];
+            nk_tt_PackSetOversampling(&baker->spc, cfg->oversample_h, cfg->oversample_v);
+            nk_tt_PackFontRangesRenderIntoRects(&baker->spc, &tmp->info, tmp->ranges,
+                (int)tmp->range_count, tmp->rects, &baker->alloc);
+        } while ((it = it->n) != config_iter);
+    } nk_tt_PackEnd(&baker->spc, &baker->alloc);
+
+    /* third pass: setup font and glyphs */
+    for (input_i = 0, config_iter = config_list; input_i < font_count && config_iter;
+        config_iter = config_iter->next) {
+        it = config_iter;
+        do {nk_size i = 0;
+            int char_idx = 0;
+            nk_rune glyph_count = 0;
+            const struct nk_font_config *cfg = it;
+            struct nk_font_bake_data *tmp = &baker->build[input_i++];
+            struct nk_baked_font *dst_font = cfg->font;
+
+            float font_scale = nk_tt_ScaleForPixelHeight(&tmp->info, cfg->size);
+            int unscaled_ascent, unscaled_descent, unscaled_line_gap;
+            nk_tt_GetFontVMetrics(&tmp->info, &unscaled_ascent, &unscaled_descent,
+                                    &unscaled_line_gap);
+
+            /* fill baked font */
+            if (!cfg->merge_mode) {
+                dst_font->ranges = cfg->range;
+                dst_font->height = cfg->size;
+                dst_font->ascent = ((float)unscaled_ascent * font_scale);
+                dst_font->descent = ((float)unscaled_descent * font_scale);
+                dst_font->glyph_offset = glyph_n;
+                // Need to zero this, or it will carry over from a previous
+                // bake, and cause a segfault when accessing glyphs[].
+                dst_font->glyph_count = 0;
+            }
+
+            /* fill own baked font glyph array */
+            for (i = 0; i < tmp->range_count; ++i) {
+                struct nk_tt_pack_range *range = &tmp->ranges[i];
+                for (char_idx = 0; char_idx < range->num_chars; char_idx++)
+                {
+                    nk_rune codepoint = 0;
+                    float dummy_x = 0, dummy_y = 0;
+                    struct nk_tt_aligned_quad q;
+                    struct nk_font_glyph *glyph;
+
+                    /* query glyph bounds from stb_truetype */
+                    const struct nk_tt_packedchar *pc = &range->chardata_for_range[char_idx];
+                    if (!pc->x0 && !pc->x1 && !pc->y0 && !pc->y1) continue;
+                    codepoint = (nk_rune)(range->first_unicode_codepoint_in_range + char_idx);
+                    nk_tt_GetPackedQuad(range->chardata_for_range, (int)width,
+                        (int)height, char_idx, &dummy_x, &dummy_y, &q, 0);
+
+                    /* fill own glyph type with data */
+                    glyph = &glyphs[dst_font->glyph_offset + dst_font->glyph_count + (unsigned int)glyph_count];
+                    glyph->codepoint = codepoint;
+                    glyph->x0 = q.x0; glyph->y0 = q.y0;
+                    glyph->x1 = q.x1; glyph->y1 = q.y1;
+                    glyph->y0 += (dst_font->ascent + 0.5f);
+                    glyph->y1 += (dst_font->ascent + 0.5f);
+                    glyph->w = glyph->x1 - glyph->x0 + 0.5f;
+                    glyph->h = glyph->y1 - glyph->y0;
+
+                    if (cfg->coord_type == NK_COORD_PIXEL) {
+                        glyph->u0 = q.s0 * (float)width;
+                        glyph->v0 = q.t0 * (float)height;
+                        glyph->u1 = q.s1 * (float)width;
+                        glyph->v1 = q.t1 * (float)height;
+                    } else {
+                        glyph->u0 = q.s0;
+                        glyph->v0 = q.t0;
+                        glyph->u1 = q.s1;
+                        glyph->v1 = q.t1;
+                    }
+                    glyph->xadvance = (pc->xadvance + cfg->spacing.x);
+                    if (cfg->pixel_snap)
+                        glyph->xadvance = (float)(int)(glyph->xadvance + 0.5f);
+                    glyph_count++;
+                }
+            }
+            dst_font->glyph_count += glyph_count;
+            glyph_n += glyph_count;
+        } while ((it = it->n) != config_iter);
+    }
+}
+NK_INTERN void
+nk_font_bake_custom_data(void *img_memory, int img_width, int img_height,
+    struct nk_recti img_dst, const char *texture_data_mask, int tex_width,
+    int tex_height, char white, char black)
+{
+    nk_byte *pixels;
+    int y = 0;
+    int x = 0;
+    int n = 0;
+
+    NK_ASSERT(img_memory);
+    NK_ASSERT(img_width);
+    NK_ASSERT(img_height);
+    NK_ASSERT(texture_data_mask);
+    NK_UNUSED(tex_height);
+    if (!img_memory || !img_width || !img_height || !texture_data_mask)
+        return;
+
+    pixels = (nk_byte*)img_memory;
+    for (y = 0, n = 0; y < tex_height; ++y) {
+        for (x = 0; x < tex_width; ++x, ++n) {
+            const int off0 = ((img_dst.x + x) + (img_dst.y + y) * img_width);
+            const int off1 = off0 + 1 + tex_width;
+            pixels[off0] = (texture_data_mask[n] == white) ? 0xFF : 0x00;
+            pixels[off1] = (texture_data_mask[n] == black) ? 0xFF : 0x00;
+        }
+    }
+}
+NK_INTERN void
+nk_font_bake_convert(void *out_memory, int img_width, int img_height,
+    const void *in_memory)
+{
+    int n = 0;
+    nk_rune *dst;
+    const nk_byte *src;
+
+    NK_ASSERT(out_memory);
+    NK_ASSERT(in_memory);
+    NK_ASSERT(img_width);
+    NK_ASSERT(img_height);
+    if (!out_memory || !in_memory || !img_height || !img_width) return;
+
+    dst = (nk_rune*)out_memory;
+    src = (const nk_byte*)in_memory;
+    for (n = (int)(img_width * img_height); n > 0; n--)
+        *dst++ = ((nk_rune)(*src++) << 24) | 0x00FFFFFF;
+}
+
+/* -------------------------------------------------------------
+ *
+ *                          FONT
+ *
+ * --------------------------------------------------------------*/
+NK_INTERN float
+nk_font_text_width(nk_handle handle, float height, const char *text, int len)
+{
+    nk_rune unicode;
+    int text_len  = 0;
+    float text_width = 0;
+    int glyph_len = 0;
+    float scale = 0;
+
+    struct nk_font *font = (struct nk_font*)handle.ptr;
+    NK_ASSERT(font);
+    NK_ASSERT(font->glyphs);
+    if (!font || !text || !len)
+        return 0;
+
+    scale = height/font->info.height;
+    glyph_len = text_len = nk_utf_decode(text, &unicode, (int)len);
+    if (!glyph_len) return 0;
+    while (text_len <= (int)len && glyph_len) {
+        const struct nk_font_glyph *g;
+        if (unicode == NK_UTF_INVALID) break;
+
+        /* query currently drawn glyph information */
+        g = nk_font_find_glyph(font, unicode);
+        text_width += g->xadvance * scale;
+
+        /* offset next glyph */
+        glyph_len = nk_utf_decode(text + text_len, &unicode, (int)len - text_len);
+        text_len += glyph_len;
+    }
+    return text_width;
+}
+#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
+NK_INTERN void
+nk_font_query_font_glyph(nk_handle handle, float height,
+    struct nk_user_font_glyph *glyph, nk_rune codepoint, nk_rune next_codepoint)
+{
+    float scale;
+    const struct nk_font_glyph *g;
+    struct nk_font *font;
+
+    NK_ASSERT(glyph);
+    NK_UNUSED(next_codepoint);
+
+    font = (struct nk_font*)handle.ptr;
+    NK_ASSERT(font);
+    NK_ASSERT(font->glyphs);
+    if (!font || !glyph)
+        return;
+
+    scale = height/font->info.height;
+    g = nk_font_find_glyph(font, codepoint);
+    glyph->width = (g->x1 - g->x0) * scale;
+    glyph->height = (g->y1 - g->y0) * scale;
+    glyph->offset = nk_vec2(g->x0 * scale, g->y0 * scale);
+    glyph->xadvance = (g->xadvance * scale);
+    glyph->uv[0] = nk_vec2(g->u0, g->v0);
+    glyph->uv[1] = nk_vec2(g->u1, g->v1);
+}
+#endif
+NK_API const struct nk_font_glyph*
+nk_font_find_glyph(struct nk_font *font, nk_rune unicode)
+{
+    int i = 0;
+    int count;
+    int total_glyphs = 0;
+    const struct nk_font_glyph *glyph = 0;
+    const struct nk_font_config *iter = 0;
+
+    NK_ASSERT(font);
+    NK_ASSERT(font->glyphs);
+    NK_ASSERT(font->info.ranges);
+    if (!font || !font->glyphs) return 0;
+
+    glyph = font->fallback;
+    iter = font->config;
+    do {count = nk_range_count(iter->range);
+        for (i = 0; i < count; ++i) {
+            nk_rune f = iter->range[(i*2)+0];
+            nk_rune t = iter->range[(i*2)+1];
+            int diff = (int)((t - f) + 1);
+            if (unicode >= f && unicode <= t)
+                return &font->glyphs[((nk_rune)total_glyphs + (unicode - f))];
+            total_glyphs += diff;
+        }
+    } while ((iter = iter->n) != font->config);
+    return glyph;
+}
+NK_INTERN void
+nk_font_init(struct nk_font *font, float pixel_height,
+    nk_rune fallback_codepoint, struct nk_font_glyph *glyphs,
+    const struct nk_baked_font *baked_font, nk_handle atlas)
+{
+    struct nk_baked_font baked;
+    NK_ASSERT(font);
+    NK_ASSERT(glyphs);
+    NK_ASSERT(baked_font);
+    if (!font || !glyphs || !baked_font)
+        return;
+
+    baked = *baked_font;
+    font->fallback = 0;
+    font->info = baked;
+    font->scale = (float)pixel_height / (float)font->info.height;
+    font->glyphs = &glyphs[baked_font->glyph_offset];
+    font->texture = atlas;
+    font->fallback_codepoint = fallback_codepoint;
+    font->fallback = nk_font_find_glyph(font, fallback_codepoint);
+
+    font->handle.height = font->info.height * font->scale;
+    font->handle.width = nk_font_text_width;
+    font->handle.userdata.ptr = font;
+#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
+    font->handle.query = nk_font_query_font_glyph;
+    font->handle.texture = font->texture;
+#endif
+}
+
+/* ---------------------------------------------------------------------------
+ *
+ *                          DEFAULT FONT
+ *
+ * ProggyClean.ttf
+ * Copyright (c) 2004, 2005 Tristan Grimmer
+ * MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
+ * Download and more information at http://upperbounds.net
+ *-----------------------------------------------------------------------------*/
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Woverlength-strings"
+#elif defined(__GNUC__) || defined(__GNUG__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Woverlength-strings"
+#endif
+
+#ifdef NK_INCLUDE_DEFAULT_FONT
+
+NK_GLOBAL const char nk_proggy_clean_ttf_compressed_data_base85[11980+1] =
+    "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
+    "2*>]b(MC;$jPfY.;h^`IWM9<Lh2TlS+f-s$o6Q<BWH`YiU.xfLq$N;$0iR/GX:U(jcW2p/W*q?-qmnUCI;jHSAiFWM.R*kU@C=GH?a9wp8f$e.-4^Qg1)Q-GL(lf(r/7GrRgwV%MS=C#"
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+    "Yq[@>P)hI;*_F]u`Rb[.j8_Q/<&>uu+VsH$sM9TA%?)(vmJ80),P7E>)tjD%2L=-t#fK[%`v=Q8<FfNkgg^oIbah*#8/Qt$F&:K*-(N/'+1vMB,u()-a.VUU*#[e%gAAO(S>WlA2);Sa"
+    ">gXm8YB`1d@K#n]76-a$U,mF<fX]idqd)<3,]J7JmW4`6]uks=4-72L(jEk+:bJ0M^q-8Dm_Z?0olP1C9Sa&H[d&c$ooQUj]Exd*3ZM@-WGW2%s',B-_M%>%Ul:#/'xoFM9QX-$.QN'>"
+    "[%$Z$uF6pA6Ki2O5:8w*vP1<-1`[G,)-m#>0`P&#eb#.3i)rtB61(o'$?X3B</R90;eZ]%Ncq;-Tl]#F>2Qft^ae_5tKL9MUe9b*sLEQ95C&`=G?@Mj=wh*'3E>=-<)Gt*Iw)'QG:`@I"
+    "wOf7&]1i'S01B+Ev/Nac#9S;=;YQpg_6U`*kVY39xK,[/6Aj7:'1Bm-_1EYfa1+o&o4hp7KN_Q(OlIo@S%;jVdn0'1<Vc52=u`3^o-n1'g4v58Hj&6_t7$##?M)c<$bgQ_'SY((-xkA#"
+    "Y(,p'H9rIVY-b,'%bCPF7.J<Up^,(dU1VY*5#WkTU>h19w,WQhLI)3S#f$2(eb,jr*b;3Vw]*7NH%$c4Vs,eD9>XW8?N]o+(*pgC%/72LV-u<Hp,3@e^9UB1J+ak9-TN/mhKPg+AJYd$"
+    "MlvAF_jCK*.O-^(63adMT->W%iewS8W6m2rtCpo'RS1R84=@paTKt)>=%&1[)*vp'u+x,VrwN;&]kuO9JDbg=pO$J*.jVe;u'm0dr9l,<*wMK*Oe=g8lV_KEBFkO'oU]^=[-792#ok,)"
+    "i]lR8qQ2oA8wcRCZ^7w/Njh;?.stX?Q1>S1q4Bn$)K1<-rGdO'$Wr.Lc.CG)$/*JL4tNR/,SVO3,aUw'DJN:)Ss;wGn9A32ijw%FL+Z0Fn.U9;reSq)bmI32U==5ALuG&#Vf1398/pVo"
+    "1*c-(aY168o<`JsSbk-,1N;$>0:OUas(3:8Z972LSfF8eb=c-;>SPw7.6hn3m`9^Xkn(r.qS[0;T%&Qc=+STRxX'q1BNk3&*eu2;&8q$&x>Q#Q7^Tf+6<(d%ZVmj2bDi%.3L2n+4W'$P"
+    "iDDG)g,r%+?,$@?uou5tSe2aN_AQU*<h`e-GI7)?OK2A.d7_c)?wQ5AS@DL3r#7fSkgl6-++D:'A,uq7SvlB$pcpH'q3n0#_%dY#xCpr-l<F0NR@-##FEV6NTF6##$l84N1w?AO>'IAO"
+    "URQ##V^Fv-XFbGM7Fl(N<3DhLGF%q.1rC$#:T__&Pi68%0xi_&[qFJ(77j_&JWoF.V735&T,[R*:xFR*K5>>#`bW-?4Ne_&6Ne_&6Ne_&n`kr-#GJcM6X;uM6X;uM(.a..^2TkL%oR(#"
+    ";u.T%fAr%4tJ8&><1=GHZ_+m9/#H1F^R#SC#*N=BA9(D?v[UiFY>>^8p,KKF.W]L29uLkLlu/+4T<XoIB&hx=T1PcDaB&;HH+-AFr?(m9HZV)FKS8JCw;SD=6[^/DZUL`EUDf]GGlG&>"
+    "w$)F./^n3+rlo+DB;5sIYGNk+i1t-69Jg--0pao7Sm#K)pdHW&;LuDNH@H>#/X-TI(;P>#,Gc>#0Su>#4`1?#8lC?#<xU?#@.i?#D:%@#HF7@#LRI@#P_[@#Tkn@#Xw*A#]-=A#a9OA#"
+    "d<F&#*;G##.GY##2Sl##6`($#:l:$#>xL$#B.`$#F:r$#JF.%#NR@%#R_R%#Vke%#Zww%#_-4&#3^Rh%Sflr-k'MS.o?.5/sWel/wpEM0%3'/1)K^f1-d>G21&v(35>V`39V7A4=onx4"
+    "A1OY5EI0;6Ibgr6M$HS7Q<)58C5w,;WoA*#[%T*#`1g*#d=#+#hI5+#lUG+#pbY+#tnl+#x$),#&1;,#*=M,#.I`,#2Ur,#6b.-#;w[H#iQtA#m^0B#qjBB#uvTB##-hB#'9$C#+E6C#"
+    "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#"
+    "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#"
+    "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP"
+    "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
+    "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
+
+#endif /* NK_INCLUDE_DEFAULT_FONT */
+
+#define NK_CURSOR_DATA_W 90
+#define NK_CURSOR_DATA_H 27
+NK_GLOBAL const char nk_custom_cursor_data[NK_CURSOR_DATA_W * NK_CURSOR_DATA_H + 1] =
+{
+    "..-         -XXXXXXX-    X    -           X           -XXXXXXX          -          XXXXXXX"
+    "..-         -X.....X-   X.X   -          X.X          -X.....X          -          X.....X"
+    "---         -XXX.XXX-  X...X  -         X...X         -X....X           -           X....X"
+    "X           -  X.X  - X.....X -        X.....X        -X...X            -            X...X"
+    "XX          -  X.X  -X.......X-       X.......X       -X..X.X           -           X.X..X"
+    "X.X         -  X.X  -XXXX.XXXX-       XXXX.XXXX       -X.X X.X          -          X.X X.X"
+    "X..X        -  X.X  -   X.X   -          X.X          -XX   X.X         -         X.X   XX"
+    "X...X       -  X.X  -   X.X   -    XX    X.X    XX    -      X.X        -        X.X      "
+    "X....X      -  X.X  -   X.X   -   X.X    X.X    X.X   -       X.X       -       X.X       "
+    "X.....X     -  X.X  -   X.X   -  X..X    X.X    X..X  -        X.X      -      X.X        "
+    "X......X    -  X.X  -   X.X   - X...XXXXXX.XXXXXX...X -         X.X   XX-XX   X.X         "
+    "X.......X   -  X.X  -   X.X   -X.....................X-          X.X X.X-X.X X.X          "
+    "X........X  -  X.X  -   X.X   - X...XXXXXX.XXXXXX...X -           X.X..X-X..X.X           "
+    "X.........X -XXX.XXX-   X.X   -  X..X    X.X    X..X  -            X...X-X...X            "
+    "X..........X-X.....X-   X.X   -   X.X    X.X    X.X   -           X....X-X....X           "
+    "X......XXXXX-XXXXXXX-   X.X   -    XX    X.X    XX    -          X.....X-X.....X          "
+    "X...X..X    ---------   X.X   -          X.X          -          XXXXXXX-XXXXXXX          "
+    "X..X X..X   -       -XXXX.XXXX-       XXXX.XXXX       ------------------------------------"
+    "X.X  X..X   -       -X.......X-       X.......X       -    XX           XX    -           "
+    "XX    X..X  -       - X.....X -        X.....X        -   X.X           X.X   -           "
+    "      X..X          -  X...X  -         X...X         -  X..X           X..X  -           "
+    "       XX           -   X.X   -          X.X          - X...XXXXXXXXXXXXX...X -           "
+    "------------        -    X    -           X           -X.....................X-           "
+    "                    ----------------------------------- X...XXXXXXXXXXXXX...X -           "
+    "                                                      -  X..X           X..X  -           "
+    "                                                      -   X.X           X.X   -           "
+    "                                                      -    XX           XX    -           "
+};
+
+#ifdef __clang__
+#pragma clang diagnostic pop
+#elif defined(__GNUC__) || defined(__GNUG__)
+#pragma GCC diagnostic pop
+#endif
+
+NK_GLOBAL unsigned char *nk__barrier;
+NK_GLOBAL unsigned char *nk__barrier2;
+NK_GLOBAL unsigned char *nk__barrier3;
+NK_GLOBAL unsigned char *nk__barrier4;
+NK_GLOBAL unsigned char *nk__dout;
+
+NK_INTERN unsigned int
+nk_decompress_length(unsigned char *input)
+{
+    return (unsigned int)((input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11]);
+}
+NK_INTERN void
+nk__match(unsigned char *data, unsigned int length)
+{
+    /* INVERSE of memmove... write each byte before copying the next...*/
+    NK_ASSERT (nk__dout + length <= nk__barrier);
+    if (nk__dout + length > nk__barrier) { nk__dout += length; return; }
+    if (data < nk__barrier4) { nk__dout = nk__barrier+1; return; }
+    while (length--) *nk__dout++ = *data++;
+}
+NK_INTERN void
+nk__lit(unsigned char *data, unsigned int length)
+{
+    NK_ASSERT (nk__dout + length <= nk__barrier);
+    if (nk__dout + length > nk__barrier) { nk__dout += length; return; }
+    if (data < nk__barrier2) { nk__dout = nk__barrier+1; return; }
+    NK_MEMCPY(nk__dout, data, length);
+    nk__dout += length;
+}
+NK_INTERN unsigned char*
+nk_decompress_token(unsigned char *i)
+{
+    #define nk__in2(x)   ((i[x] << 8) + i[(x)+1])
+    #define nk__in3(x)   ((i[x] << 16) + nk__in2((x)+1))
+    #define nk__in4(x)   ((i[x] << 24) + nk__in3((x)+1))
+
+    if (*i >= 0x20) { /* use fewer if's for cases that expand small */
+        if (*i >= 0x80)       nk__match(nk__dout-i[1]-1, (unsigned int)i[0] - 0x80 + 1), i += 2;
+        else if (*i >= 0x40)  nk__match(nk__dout-(nk__in2(0) - 0x4000 + 1), (unsigned int)i[2]+1), i += 3;
+        else /* *i >= 0x20 */ nk__lit(i+1, (unsigned int)i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
+    } else { /* more ifs for cases that expand large, since overhead is amortized */
+        if (*i >= 0x18)       nk__match(nk__dout-(unsigned int)(nk__in3(0) - 0x180000 + 1), (unsigned int)i[3]+1), i += 4;
+        else if (*i >= 0x10)  nk__match(nk__dout-(unsigned int)(nk__in3(0) - 0x100000 + 1), (unsigned int)nk__in2(3)+1), i += 5;
+        else if (*i >= 0x08)  nk__lit(i+2, (unsigned int)nk__in2(0) - 0x0800 + 1), i += 2 + (nk__in2(0) - 0x0800 + 1);
+        else if (*i == 0x07)  nk__lit(i+3, (unsigned int)nk__in2(1) + 1), i += 3 + (nk__in2(1) + 1);
+        else if (*i == 0x06)  nk__match(nk__dout-(unsigned int)(nk__in3(1)+1), i[4]+1u), i += 5;
+        else if (*i == 0x04)  nk__match(nk__dout-(unsigned int)(nk__in3(1)+1), (unsigned int)nk__in2(4)+1u), i += 6;
+    }
+    return i;
+}
+NK_INTERN unsigned int
+nk_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
+{
+    const unsigned long ADLER_MOD = 65521;
+    unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
+    unsigned long blocklen, i;
+
+    blocklen = buflen % 5552;
+    while (buflen) {
+        for (i=0; i + 7 < blocklen; i += 8) {
+            s1 += buffer[0]; s2 += s1;
+            s1 += buffer[1]; s2 += s1;
+            s1 += buffer[2]; s2 += s1;
+            s1 += buffer[3]; s2 += s1;
+            s1 += buffer[4]; s2 += s1;
+            s1 += buffer[5]; s2 += s1;
+            s1 += buffer[6]; s2 += s1;
+            s1 += buffer[7]; s2 += s1;
+            buffer += 8;
+        }
+        for (; i < blocklen; ++i) {
+            s1 += *buffer++; s2 += s1;
+        }
+
+        s1 %= ADLER_MOD; s2 %= ADLER_MOD;
+        buflen -= (unsigned int)blocklen;
+        blocklen = 5552;
+    }
+    return (unsigned int)(s2 << 16) + (unsigned int)s1;
+}
+NK_INTERN unsigned int
+nk_decompress(unsigned char *output, unsigned char *i, unsigned int length)
+{
+    unsigned int olen;
+    if (nk__in4(0) != 0x57bC0000) return 0;
+    if (nk__in4(4) != 0)          return 0; /* error! stream is > 4GB */
+    olen = nk_decompress_length(i);
+    nk__barrier2 = i;
+    nk__barrier3 = i+length;
+    nk__barrier = output + olen;
+    nk__barrier4 = output;
+    i += 16;
+
+    nk__dout = output;
+    for (;;) {
+        unsigned char *old_i = i;
+        i = nk_decompress_token(i);
+        if (i == old_i) {
+            if (*i == 0x05 && i[1] == 0xfa) {
+                NK_ASSERT(nk__dout == output + olen);
+                if (nk__dout != output + olen) return 0;
+                if (nk_adler32(1, output, olen) != (unsigned int) nk__in4(2))
+                    return 0;
+                return olen;
+            } else {
+                NK_ASSERT(0); /* NOTREACHED */
+                return 0;
+            }
+        }
+        NK_ASSERT(nk__dout <= output + olen);
+        if (nk__dout > output + olen)
+            return 0;
+    }
+}
+NK_INTERN unsigned int
+nk_decode_85_byte(char c)
+{
+    return (unsigned int)((c >= '\\') ? c-36 : c-35);
+}
+NK_INTERN void
+nk_decode_85(unsigned char* dst, const unsigned char* src)
+{
+    while (*src)
+    {
+        unsigned int tmp =
+            nk_decode_85_byte((char)src[0]) +
+            85 * (nk_decode_85_byte((char)src[1]) +
+            85 * (nk_decode_85_byte((char)src[2]) +
+            85 * (nk_decode_85_byte((char)src[3]) +
+            85 * nk_decode_85_byte((char)src[4]))));
+
+        /* we can't assume little-endianess. */
+        dst[0] = (unsigned char)((tmp >> 0) & 0xFF);
+        dst[1] = (unsigned char)((tmp >> 8) & 0xFF);
+        dst[2] = (unsigned char)((tmp >> 16) & 0xFF);
+        dst[3] = (unsigned char)((tmp >> 24) & 0xFF);
+
+        src += 5;
+        dst += 4;
+    }
+}
+
+/* -------------------------------------------------------------
+ *
+ *                          FONT ATLAS
+ *
+ * --------------------------------------------------------------*/
+NK_API struct nk_font_config
+nk_font_config(float pixel_height)
+{
+    struct nk_font_config cfg;
+    nk_zero_struct(cfg);
+    cfg.ttf_blob = 0;
+    cfg.ttf_size = 0;
+    cfg.ttf_data_owned_by_atlas = 0;
+    cfg.size = pixel_height;
+    cfg.oversample_h = 3;
+    cfg.oversample_v = 1;
+    cfg.pixel_snap = 0;
+    cfg.coord_type = NK_COORD_UV;
+    cfg.spacing = nk_vec2(0,0);
+    cfg.range = nk_font_default_glyph_ranges();
+    cfg.merge_mode = 0;
+    cfg.fallback_glyph = '?';
+    cfg.font = 0;
+    cfg.n = 0;
+    return cfg;
+}
+#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
+NK_API void
+nk_font_atlas_init_default(struct nk_font_atlas *atlas)
+{
+    NK_ASSERT(atlas);
+    if (!atlas) return;
+    nk_zero_struct(*atlas);
+    atlas->temporary.userdata.ptr = 0;
+    atlas->temporary.alloc = nk_malloc;
+    atlas->temporary.free = nk_mfree;
+    atlas->permanent.userdata.ptr = 0;
+    atlas->permanent.alloc = nk_malloc;
+    atlas->permanent.free = nk_mfree;
+}
+#endif
+NK_API void
+nk_font_atlas_init(struct nk_font_atlas *atlas, struct nk_allocator *alloc)
+{
+    NK_ASSERT(atlas);
+    NK_ASSERT(alloc);
+    if (!atlas || !alloc) return;
+    nk_zero_struct(*atlas);
+    atlas->permanent = *alloc;
+    atlas->temporary = *alloc;
+}
+NK_API void
+nk_font_atlas_init_custom(struct nk_font_atlas *atlas,
+    struct nk_allocator *permanent, struct nk_allocator *temporary)
+{
+    NK_ASSERT(atlas);
+    NK_ASSERT(permanent);
+    NK_ASSERT(temporary);
+    if (!atlas || !permanent || !temporary) return;
+    nk_zero_struct(*atlas);
+    atlas->permanent = *permanent;
+    atlas->temporary = *temporary;
+}
+NK_API void
+nk_font_atlas_begin(struct nk_font_atlas *atlas)
+{
+    NK_ASSERT(atlas);
+    NK_ASSERT(atlas->temporary.alloc && atlas->temporary.free);
+    NK_ASSERT(atlas->permanent.alloc && atlas->permanent.free);
+    if (!atlas || !atlas->permanent.alloc || !atlas->permanent.free ||
+        !atlas->temporary.alloc || !atlas->temporary.free) return;
+    if (atlas->glyphs) {
+        atlas->permanent.free(atlas->permanent.userdata, atlas->glyphs);
+        atlas->glyphs = 0;
+    }
+    if (atlas->pixel) {
+        atlas->permanent.free(atlas->permanent.userdata, atlas->pixel);
+        atlas->pixel = 0;
+    }
+}
+NK_API struct nk_font*
+nk_font_atlas_add(struct nk_font_atlas *atlas, const struct nk_font_config *config)
+{
+    struct nk_font *font = 0;
+    struct nk_font_config *cfg;
+
+    NK_ASSERT(atlas);
+    NK_ASSERT(atlas->permanent.alloc);
+    NK_ASSERT(atlas->permanent.free);
+    NK_ASSERT(atlas->temporary.alloc);
+    NK_ASSERT(atlas->temporary.free);
+
+    NK_ASSERT(config);
+    NK_ASSERT(config->ttf_blob);
+    NK_ASSERT(config->ttf_size);
+    NK_ASSERT(config->size > 0.0f);
+
+    if (!atlas || !config || !config->ttf_blob || !config->ttf_size || config->size <= 0.0f||
+        !atlas->permanent.alloc || !atlas->permanent.free ||
+        !atlas->temporary.alloc || !atlas->temporary.free)
+        return 0;
+
+    /* allocate font config  */
+    cfg = (struct nk_font_config*)
+        atlas->permanent.alloc(atlas->permanent.userdata,0, sizeof(struct nk_font_config));
+    NK_MEMCPY(cfg, config, sizeof(*config));
+    cfg->n = cfg;
+    cfg->p = cfg;
+
+    if (!config->merge_mode) {
+        /* insert font config into list */
+        if (!atlas->config) {
+            atlas->config = cfg;
+            cfg->next = 0;
+        } else {
+            struct nk_font_config *i = atlas->config;
+            while (i->next) i = i->next;
+            i->next = cfg;
+            cfg->next = 0;
+        }
+        /* allocate new font */
+        font = (struct nk_font*)
+            atlas->permanent.alloc(atlas->permanent.userdata,0, sizeof(struct nk_font));
+        NK_ASSERT(font);
+        nk_zero(font, sizeof(*font));
+        if (!font) return 0;
+        font->config = cfg;
+
+        /* insert font into list */
+        if (!atlas->fonts) {
+            atlas->fonts = font;
+            font->next = 0;
+        } else {
+            struct nk_font *i = atlas->fonts;
+            while (i->next) i = i->next;
+            i->next = font;
+            font->next = 0;
+        }
+        cfg->font = &font->info;
+    } else {
+        /* extend previously added font */
+        struct nk_font *f = 0;
+        struct nk_font_config *c = 0;
+        NK_ASSERT(atlas->font_num);
+        f = atlas->fonts;
+        c = f->config;
+        cfg->font = &f->info;
+
+        cfg->n = c;
+        cfg->p = c->p;
+        c->p->n = cfg;
+        c->p = cfg;
+    }
+    /* create own copy of .TTF font blob */
+    if (!config->ttf_data_owned_by_atlas) {
+        cfg->ttf_blob = atlas->permanent.alloc(atlas->permanent.userdata,0, cfg->ttf_size);
+        NK_ASSERT(cfg->ttf_blob);
+        if (!cfg->ttf_blob) {
+            atlas->font_num++;
+            return 0;
+        }
+        NK_MEMCPY(cfg->ttf_blob, config->ttf_blob, cfg->ttf_size);
+        cfg->ttf_data_owned_by_atlas = 1;
+    }
+    atlas->font_num++;
+    return font;
+}
+NK_API struct nk_font*
+nk_font_atlas_add_from_memory(struct nk_font_atlas *atlas, void *memory,
+    nk_size size, float height, const struct nk_font_config *config)
+{
+    struct nk_font_config cfg;
+    NK_ASSERT(memory);
+    NK_ASSERT(size);
+
+    NK_ASSERT(atlas);
+    NK_ASSERT(atlas->temporary.alloc);
+    NK_ASSERT(atlas->temporary.free);
+    NK_ASSERT(atlas->permanent.alloc);
+    NK_ASSERT(atlas->permanent.free);
+    if (!atlas || !atlas->temporary.alloc || !atlas->temporary.free || !memory || !size ||
+        !atlas->permanent.alloc || !atlas->permanent.free)
+        return 0;
+
+    cfg = (config) ? *config: nk_font_config(height);
+    cfg.ttf_blob = memory;
+    cfg.ttf_size = size;
+    cfg.size = height;
+    cfg.ttf_data_owned_by_atlas = 0;
+    return nk_font_atlas_add(atlas, &cfg);
+}
+#ifdef NK_INCLUDE_STANDARD_IO
+NK_API struct nk_font*
+nk_font_atlas_add_from_file(struct nk_font_atlas *atlas, const char *file_path,
+    float height, const struct nk_font_config *config)
+{
+    nk_size size;
+    char *memory;
+    struct nk_font_config cfg;
+
+    NK_ASSERT(atlas);
+    NK_ASSERT(atlas->temporary.alloc);
+    NK_ASSERT(atlas->temporary.free);
+    NK_ASSERT(atlas->permanent.alloc);
+    NK_ASSERT(atlas->permanent.free);
+
+    if (!atlas || !file_path) return 0;
+    memory = nk_file_load(file_path, &size, &atlas->permanent);
+    if (!memory) return 0;
+
+    cfg = (config) ? *config: nk_font_config(height);
+    cfg.ttf_blob = memory;
+    cfg.ttf_size = size;
+    cfg.size = height;
+    cfg.ttf_data_owned_by_atlas = 1;
+    return nk_font_atlas_add(atlas, &cfg);
+}
+#endif
+NK_API struct nk_font*
+nk_font_atlas_add_compressed(struct nk_font_atlas *atlas,
+    void *compressed_data, nk_size compressed_size, float height,
+    const struct nk_font_config *config)
+{
+    unsigned int decompressed_size;
+    void *decompressed_data;
+    struct nk_font_config cfg;
+
+    NK_ASSERT(atlas);
+    NK_ASSERT(atlas->temporary.alloc);
+    NK_ASSERT(atlas->temporary.free);
+    NK_ASSERT(atlas->permanent.alloc);
+    NK_ASSERT(atlas->permanent.free);
+
+    NK_ASSERT(compressed_data);
+    NK_ASSERT(compressed_size);
+    if (!atlas || !compressed_data || !atlas->temporary.alloc || !atlas->temporary.free ||
+        !atlas->permanent.alloc || !atlas->permanent.free)
+        return 0;
+
+    decompressed_size = nk_decompress_length((unsigned char*)compressed_data);
+    decompressed_data = atlas->permanent.alloc(atlas->permanent.userdata,0,decompressed_size);
+    NK_ASSERT(decompressed_data);
+    if (!decompressed_data) return 0;
+    nk_decompress((unsigned char*)decompressed_data, (unsigned char*)compressed_data,
+        (unsigned int)compressed_size);
+
+    cfg = (config) ? *config: nk_font_config(height);
+    cfg.ttf_blob = decompressed_data;
+    cfg.ttf_size = decompressed_size;
+    cfg.size = height;
+    cfg.ttf_data_owned_by_atlas = 1;
+    return nk_font_atlas_add(atlas, &cfg);
+}
+NK_API struct nk_font*
+nk_font_atlas_add_compressed_base85(struct nk_font_atlas *atlas,
+    const char *data_base85, float height, const struct nk_font_config *config)
+{
+    int compressed_size;
+    void *compressed_data;
+    struct nk_font *font;
+
+    NK_ASSERT(atlas);
+    NK_ASSERT(atlas->temporary.alloc);
+    NK_ASSERT(atlas->temporary.free);
+    NK_ASSERT(atlas->permanent.alloc);
+    NK_ASSERT(atlas->permanent.free);
+
+    NK_ASSERT(data_base85);
+    if (!atlas || !data_base85 || !atlas->temporary.alloc || !atlas->temporary.free ||
+        !atlas->permanent.alloc || !atlas->permanent.free)
+        return 0;
+
+    compressed_size = (((int)nk_strlen(data_base85) + 4) / 5) * 4;
+    compressed_data = atlas->temporary.alloc(atlas->temporary.userdata,0, (nk_size)compressed_size);
+    NK_ASSERT(compressed_data);
+    if (!compressed_data) return 0;
+    nk_decode_85((unsigned char*)compressed_data, (const unsigned char*)data_base85);
+    font = nk_font_atlas_add_compressed(atlas, compressed_data,
+                    (nk_size)compressed_size, height, config);
+    atlas->temporary.free(atlas->temporary.userdata, compressed_data);
+    return font;
+}
+
+#ifdef NK_INCLUDE_DEFAULT_FONT
+NK_API struct nk_font*
+nk_font_atlas_add_default(struct nk_font_atlas *atlas,
+    float pixel_height, const struct nk_font_config *config)
+{
+    NK_ASSERT(atlas);
+    NK_ASSERT(atlas->temporary.alloc);
+    NK_ASSERT(atlas->temporary.free);
+    NK_ASSERT(atlas->permanent.alloc);
+    NK_ASSERT(atlas->permanent.free);
+    return nk_font_atlas_add_compressed_base85(atlas,
+        nk_proggy_clean_ttf_compressed_data_base85, pixel_height, config);
+}
+#endif
+NK_API const void*
+nk_font_atlas_bake(struct nk_font_atlas *atlas, int *width, int *height,
+    enum nk_font_atlas_format fmt)
+{
+    int i = 0;
+    void *tmp = 0;
+    nk_size tmp_size, img_size;
+    struct nk_font *font_iter;
+    struct nk_font_baker *baker;
+
+    NK_ASSERT(atlas);
+    NK_ASSERT(atlas->temporary.alloc);
+    NK_ASSERT(atlas->temporary.free);
+    NK_ASSERT(atlas->permanent.alloc);
+    NK_ASSERT(atlas->permanent.free);
+
+    NK_ASSERT(width);
+    NK_ASSERT(height);
+    if (!atlas || !width || !height ||
+        !atlas->temporary.alloc || !atlas->temporary.free ||
+        !atlas->permanent.alloc || !atlas->permanent.free)
+        return 0;
+
+#ifdef NK_INCLUDE_DEFAULT_FONT
+    /* no font added so just use default font */
+    if (!atlas->font_num)
+        atlas->default_font = nk_font_atlas_add_default(atlas, 13.0f, 0);
+#endif
+    NK_ASSERT(atlas->font_num);
+    if (!atlas->font_num) return 0;
+
+    /* allocate temporary baker memory required for the baking process */
+    nk_font_baker_memory(&tmp_size, &atlas->glyph_count, atlas->config, atlas->font_num);
+    tmp = atlas->temporary.alloc(atlas->temporary.userdata,0, tmp_size);
+    NK_ASSERT(tmp);
+    if (!tmp) goto failed;
+
+    /* allocate glyph memory for all fonts */
+    baker = nk_font_baker(tmp, atlas->glyph_count, atlas->font_num, &atlas->temporary);
+    atlas->glyphs = (struct nk_font_glyph*)atlas->permanent.alloc(
+        atlas->permanent.userdata,0, sizeof(struct nk_font_glyph)*(nk_size)atlas->glyph_count);
+    NK_ASSERT(atlas->glyphs);
+    if (!atlas->glyphs)
+        goto failed;
+
+    /* pack all glyphs into a tight fit space */
+    atlas->custom.w = (NK_CURSOR_DATA_W*2)+1;
+    atlas->custom.h = NK_CURSOR_DATA_H + 1;
+    if (!nk_font_bake_pack(baker, &img_size, width, height, &atlas->custom,
+        atlas->config, atlas->font_num, &atlas->temporary))
+        goto failed;
+
+    /* allocate memory for the baked image font atlas */
+    atlas->pixel = atlas->temporary.alloc(atlas->temporary.userdata,0, img_size);
+    NK_ASSERT(atlas->pixel);
+    if (!atlas->pixel)
+        goto failed;
+
+    /* bake glyphs and custom white pixel into image */
+    nk_font_bake(baker, atlas->pixel, *width, *height,
+        atlas->glyphs, atlas->glyph_count, atlas->config, atlas->font_num);
+    nk_font_bake_custom_data(atlas->pixel, *width, *height, atlas->custom,
+            nk_custom_cursor_data, NK_CURSOR_DATA_W, NK_CURSOR_DATA_H, '.', 'X');
+
+    if (fmt == NK_FONT_ATLAS_RGBA32) {
+        /* convert alpha8 image into rgba32 image */
+        void *img_rgba = atlas->temporary.alloc(atlas->temporary.userdata,0,
+                            (nk_size)(*width * *height * 4));
+        NK_ASSERT(img_rgba);
+        if (!img_rgba) goto failed;
+        nk_font_bake_convert(img_rgba, *width, *height, atlas->pixel);
+        atlas->temporary.free(atlas->temporary.userdata, atlas->pixel);
+        atlas->pixel = img_rgba;
+    }
+    atlas->tex_width = *width;
+    atlas->tex_height = *height;
+
+    /* initialize each font */
+    for (font_iter = atlas->fonts; font_iter; font_iter = font_iter->next) {
+        struct nk_font *font = font_iter;
+        struct nk_font_config *config = font->config;
+        nk_font_init(font, config->size, config->fallback_glyph, atlas->glyphs,
+            config->font, nk_handle_ptr(0));
+    }
+
+    /* initialize each cursor */
+    {NK_STORAGE const struct nk_vec2 nk_cursor_data[NK_CURSOR_COUNT][3] = {
+        /* Pos      Size        Offset */
+        {{ 0, 3},   {12,19},    { 0, 0}},
+        {{13, 0},   { 7,16},    { 4, 8}},
+        {{31, 0},   {23,23},    {11,11}},
+        {{21, 0},   { 9, 23},   { 5,11}},
+        {{55,18},   {23, 9},    {11, 5}},
+        {{73, 0},   {17,17},    { 9, 9}},
+        {{55, 0},   {17,17},    { 9, 9}}
+    };
+    for (i = 0; i < NK_CURSOR_COUNT; ++i) {
+        struct nk_cursor *cursor = &atlas->cursors[i];
+        cursor->img.w = (unsigned short)*width;
+        cursor->img.h = (unsigned short)*height;
+        cursor->img.region[0] = (unsigned short)(atlas->custom.x + nk_cursor_data[i][0].x);
+        cursor->img.region[1] = (unsigned short)(atlas->custom.y + nk_cursor_data[i][0].y);
+        cursor->img.region[2] = (unsigned short)nk_cursor_data[i][1].x;
+        cursor->img.region[3] = (unsigned short)nk_cursor_data[i][1].y;
+        cursor->size = nk_cursor_data[i][1];
+        cursor->offset = nk_cursor_data[i][2];
+    }}
+    /* free temporary memory */
+    atlas->temporary.free(atlas->temporary.userdata, tmp);
+    return atlas->pixel;
+
+failed:
+    /* error so cleanup all memory */
+    if (tmp) atlas->temporary.free(atlas->temporary.userdata, tmp);
+    if (atlas->glyphs) {
+        atlas->permanent.free(atlas->permanent.userdata, atlas->glyphs);
+        atlas->glyphs = 0;
+    }
+    if (atlas->pixel) {
+        atlas->temporary.free(atlas->temporary.userdata, atlas->pixel);
+        atlas->pixel = 0;
+    }
+    return 0;
+}
+NK_API void
+nk_font_atlas_end(struct nk_font_atlas *atlas, nk_handle texture,
+    struct nk_draw_null_texture *null)
+{
+    int i = 0;
+    struct nk_font *font_iter;
+    NK_ASSERT(atlas);
+    if (!atlas) {
+        if (!null) return;
+        null->texture = texture;
+        null->uv = nk_vec2(0.5f,0.5f);
+    }
+    if (null) {
+        null->texture = texture;
+        null->uv.x = (atlas->custom.x + 0.5f)/(float)atlas->tex_width;
+        null->uv.y = (atlas->custom.y + 0.5f)/(float)atlas->tex_height;
+    }
+    for (font_iter = atlas->fonts; font_iter; font_iter = font_iter->next) {
+        font_iter->texture = texture;
+#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
+        font_iter->handle.texture = texture;
+#endif
+    }
+    for (i = 0; i < NK_CURSOR_COUNT; ++i)
+        atlas->cursors[i].img.handle = texture;
+
+    atlas->temporary.free(atlas->temporary.userdata, atlas->pixel);
+    atlas->pixel = 0;
+    atlas->tex_width = 0;
+    atlas->tex_height = 0;
+    atlas->custom.x = 0;
+    atlas->custom.y = 0;
+    atlas->custom.w = 0;
+    atlas->custom.h = 0;
+}
+NK_API void
+nk_font_atlas_cleanup(struct nk_font_atlas *atlas)
+{
+    NK_ASSERT(atlas);
+    NK_ASSERT(atlas->temporary.alloc);
+    NK_ASSERT(atlas->temporary.free);
+    NK_ASSERT(atlas->permanent.alloc);
+    NK_ASSERT(atlas->permanent.free);
+    if (!atlas || !atlas->permanent.alloc || !atlas->permanent.free) return;
+    if (atlas->config) {
+        struct nk_font_config *iter;
+        for (iter = atlas->config; iter; iter = iter->next) {
+            struct nk_font_config *i;
+            for (i = iter->n; i != iter; i = i->n) {
+                atlas->permanent.free(atlas->permanent.userdata, i->ttf_blob);
+                i->ttf_blob = 0;
+            }
+            atlas->permanent.free(atlas->permanent.userdata, iter->ttf_blob);
+            iter->ttf_blob = 0;
+        }
+    }
+}
+NK_API void
+nk_font_atlas_clear(struct nk_font_atlas *atlas)
+{
+    NK_ASSERT(atlas);
+    NK_ASSERT(atlas->temporary.alloc);
+    NK_ASSERT(atlas->temporary.free);
+    NK_ASSERT(atlas->permanent.alloc);
+    NK_ASSERT(atlas->permanent.free);
+    if (!atlas || !atlas->permanent.alloc || !atlas->permanent.free) return;
+
+    if (atlas->config) {
+        struct nk_font_config *iter, *next;
+        for (iter = atlas->config; iter; iter = next) {
+            struct nk_font_config *i, *n;
+            for (i = iter->n; i != iter; i = n) {
+                n = i->n;
+                if (i->ttf_blob)
+                    atlas->permanent.free(atlas->permanent.userdata, i->ttf_blob);
+                atlas->permanent.free(atlas->permanent.userdata, i);
+            }
+            next = iter->next;
+            if (i->ttf_blob)
+                atlas->permanent.free(atlas->permanent.userdata, iter->ttf_blob);
+            atlas->permanent.free(atlas->permanent.userdata, iter);
+        }
+        atlas->config = 0;
+    }
+    if (atlas->fonts) {
+        struct nk_font *iter, *next;
+        for (iter = atlas->fonts; iter; iter = next) {
+            next = iter->next;
+            atlas->permanent.free(atlas->permanent.userdata, iter);
+        }
+        atlas->fonts = 0;
+    }
+    if (atlas->glyphs)
+        atlas->permanent.free(atlas->permanent.userdata, atlas->glyphs);
+    nk_zero_struct(*atlas);
+}
+#endif
+
+
+
+
+
+/* ===============================================================
+ *
+ *                          INPUT
+ *
+ * ===============================================================*/
+NK_API void
+nk_input_begin(struct nk_context *ctx)
+{
+    int i;
+    struct nk_input *in;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    in = &ctx->input;
+    for (i = 0; i < NK_BUTTON_MAX; ++i)
+        in->mouse.buttons[i].clicked = 0;
+
+    in->keyboard.text_len = 0;
+    in->mouse.scroll_delta = nk_vec2(0,0);
+    in->mouse.prev.x = in->mouse.pos.x;
+    in->mouse.prev.y = in->mouse.pos.y;
+    in->mouse.delta.x = 0;
+    in->mouse.delta.y = 0;
+    for (i = 0; i < NK_KEY_MAX; i++)
+        in->keyboard.keys[i].clicked = 0;
+}
+NK_API void
+nk_input_end(struct nk_context *ctx)
+{
+    struct nk_input *in;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    in = &ctx->input;
+    if (in->mouse.grab)
+        in->mouse.grab = 0;
+    if (in->mouse.ungrab) {
+        in->mouse.grabbed = 0;
+        in->mouse.ungrab = 0;
+        in->mouse.grab = 0;
+    }
+}
+NK_API void
+nk_input_motion(struct nk_context *ctx, int x, int y)
+{
+    struct nk_input *in;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    in = &ctx->input;
+    in->mouse.pos.x = (float)x;
+    in->mouse.pos.y = (float)y;
+    in->mouse.delta.x = in->mouse.pos.x - in->mouse.prev.x;
+    in->mouse.delta.y = in->mouse.pos.y - in->mouse.prev.y;
+}
+NK_API void
+nk_input_key(struct nk_context *ctx, enum nk_keys key, int down)
+{
+    struct nk_input *in;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    in = &ctx->input;
+#ifdef NK_KEYSTATE_BASED_INPUT
+    if (in->keyboard.keys[key].down != down)
+        in->keyboard.keys[key].clicked++;
+#else
+    in->keyboard.keys[key].clicked++;
+#endif
+    in->keyboard.keys[key].down = down;
+}
+NK_API void
+nk_input_button(struct nk_context *ctx, enum nk_buttons id, int x, int y, int down)
+{
+    struct nk_mouse_button *btn;
+    struct nk_input *in;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    in = &ctx->input;
+    if (in->mouse.buttons[id].down == down) return;
+
+    btn = &in->mouse.buttons[id];
+    btn->clicked_pos.x = (float)x;
+    btn->clicked_pos.y = (float)y;
+    btn->down = down;
+    btn->clicked++;
+}
+NK_API void
+nk_input_scroll(struct nk_context *ctx, struct nk_vec2 val)
+{
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    ctx->input.mouse.scroll_delta.x += val.x;
+    ctx->input.mouse.scroll_delta.y += val.y;
+}
+NK_API void
+nk_input_glyph(struct nk_context *ctx, const nk_glyph glyph)
+{
+    int len = 0;
+    nk_rune unicode;
+    struct nk_input *in;
+
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    in = &ctx->input;
+
+    len = nk_utf_decode(glyph, &unicode, NK_UTF_SIZE);
+    if (len && ((in->keyboard.text_len + len) < NK_INPUT_MAX)) {
+        nk_utf_encode(unicode, &in->keyboard.text[in->keyboard.text_len],
+            NK_INPUT_MAX - in->keyboard.text_len);
+        in->keyboard.text_len += len;
+    }
+}
+NK_API void
+nk_input_char(struct nk_context *ctx, char c)
+{
+    nk_glyph glyph;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    glyph[0] = c;
+    nk_input_glyph(ctx, glyph);
+}
+NK_API void
+nk_input_unicode(struct nk_context *ctx, nk_rune unicode)
+{
+    nk_glyph rune;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    nk_utf_encode(unicode, rune, NK_UTF_SIZE);
+    nk_input_glyph(ctx, rune);
+}
+NK_API int
+nk_input_has_mouse_click(const struct nk_input *i, enum nk_buttons id)
+{
+    const struct nk_mouse_button *btn;
+    if (!i) return nk_false;
+    btn = &i->mouse.buttons[id];
+    return (btn->clicked && btn->down == nk_false) ? nk_true : nk_false;
+}
+NK_API int
+nk_input_has_mouse_click_in_rect(const struct nk_input *i, enum nk_buttons id,
+    struct nk_rect b)
+{
+    const struct nk_mouse_button *btn;
+    if (!i) return nk_false;
+    btn = &i->mouse.buttons[id];
+    if (!NK_INBOX(btn->clicked_pos.x,btn->clicked_pos.y,b.x,b.y,b.w,b.h))
+        return nk_false;
+    return nk_true;
+}
+NK_API int
+nk_input_has_mouse_click_down_in_rect(const struct nk_input *i, enum nk_buttons id,
+    struct nk_rect b, int down)
+{
+    const struct nk_mouse_button *btn;
+    if (!i) return nk_false;
+    btn = &i->mouse.buttons[id];
+    return nk_input_has_mouse_click_in_rect(i, id, b) && (btn->down == down);
+}
+NK_API int
+nk_input_is_mouse_click_in_rect(const struct nk_input *i, enum nk_buttons id,
+    struct nk_rect b)
+{
+    const struct nk_mouse_button *btn;
+    if (!i) return nk_false;
+    btn = &i->mouse.buttons[id];
+    return (nk_input_has_mouse_click_down_in_rect(i, id, b, nk_false) &&
+            btn->clicked) ? nk_true : nk_false;
+}
+NK_API int
+nk_input_is_mouse_click_down_in_rect(const struct nk_input *i, enum nk_buttons id,
+    struct nk_rect b, int down)
+{
+    const struct nk_mouse_button *btn;
+    if (!i) return nk_false;
+    btn = &i->mouse.buttons[id];
+    return (nk_input_has_mouse_click_down_in_rect(i, id, b, down) &&
+            btn->clicked) ? nk_true : nk_false;
+}
+NK_API int
+nk_input_any_mouse_click_in_rect(const struct nk_input *in, struct nk_rect b)
+{
+    int i, down = 0;
+    for (i = 0; i < NK_BUTTON_MAX; ++i)
+        down = down || nk_input_is_mouse_click_in_rect(in, (enum nk_buttons)i, b);
+    return down;
+}
+NK_API int
+nk_input_is_mouse_hovering_rect(const struct nk_input *i, struct nk_rect rect)
+{
+    if (!i) return nk_false;
+    return NK_INBOX(i->mouse.pos.x, i->mouse.pos.y, rect.x, rect.y, rect.w, rect.h);
+}
+NK_API int
+nk_input_is_mouse_prev_hovering_rect(const struct nk_input *i, struct nk_rect rect)
+{
+    if (!i) return nk_false;
+    return NK_INBOX(i->mouse.prev.x, i->mouse.prev.y, rect.x, rect.y, rect.w, rect.h);
+}
+NK_API int
+nk_input_mouse_clicked(const struct nk_input *i, enum nk_buttons id, struct nk_rect rect)
+{
+    if (!i) return nk_false;
+    if (!nk_input_is_mouse_hovering_rect(i, rect)) return nk_false;
+    return nk_input_is_mouse_click_in_rect(i, id, rect);
+}
+NK_API int
+nk_input_is_mouse_down(const struct nk_input *i, enum nk_buttons id)
+{
+    if (!i) return nk_false;
+    return i->mouse.buttons[id].down;
+}
+NK_API int
+nk_input_is_mouse_pressed(const struct nk_input *i, enum nk_buttons id)
+{
+    const struct nk_mouse_button *b;
+    if (!i) return nk_false;
+    b = &i->mouse.buttons[id];
+    if (b->down && b->clicked)
+        return nk_true;
+    return nk_false;
+}
+NK_API int
+nk_input_is_mouse_released(const struct nk_input *i, enum nk_buttons id)
+{
+    if (!i) return nk_false;
+    return (!i->mouse.buttons[id].down && i->mouse.buttons[id].clicked);
+}
+NK_API int
+nk_input_is_key_pressed(const struct nk_input *i, enum nk_keys key)
+{
+    const struct nk_key *k;
+    if (!i) return nk_false;
+    k = &i->keyboard.keys[key];
+    if ((k->down && k->clicked) || (!k->down && k->clicked >= 2))
+        return nk_true;
+    return nk_false;
+}
+NK_API int
+nk_input_is_key_released(const struct nk_input *i, enum nk_keys key)
+{
+    const struct nk_key *k;
+    if (!i) return nk_false;
+    k = &i->keyboard.keys[key];
+    if ((!k->down && k->clicked) || (k->down && k->clicked >= 2))
+        return nk_true;
+    return nk_false;
+}
+NK_API int
+nk_input_is_key_down(const struct nk_input *i, enum nk_keys key)
+{
+    const struct nk_key *k;
+    if (!i) return nk_false;
+    k = &i->keyboard.keys[key];
+    if (k->down) return nk_true;
+    return nk_false;
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              STYLE
+ *
+ * ===============================================================*/
+NK_API void nk_style_default(struct nk_context *ctx){nk_style_from_table(ctx, 0);}
+#define NK_COLOR_MAP(NK_COLOR)\
+    NK_COLOR(NK_COLOR_TEXT,                     175,175,175,255) \
+    NK_COLOR(NK_COLOR_WINDOW,                   45, 45, 45, 255) \
+    NK_COLOR(NK_COLOR_HEADER,                   40, 40, 40, 255) \
+    NK_COLOR(NK_COLOR_BORDER,                   65, 65, 65, 255) \
+    NK_COLOR(NK_COLOR_BUTTON,                   50, 50, 50, 255) \
+    NK_COLOR(NK_COLOR_BUTTON_HOVER,             40, 40, 40, 255) \
+    NK_COLOR(NK_COLOR_BUTTON_ACTIVE,            35, 35, 35, 255) \
+    NK_COLOR(NK_COLOR_TOGGLE,                   100,100,100,255) \
+    NK_COLOR(NK_COLOR_TOGGLE_HOVER,             120,120,120,255) \
+    NK_COLOR(NK_COLOR_TOGGLE_CURSOR,            45, 45, 45, 255) \
+    NK_COLOR(NK_COLOR_SELECT,                   45, 45, 45, 255) \
+    NK_COLOR(NK_COLOR_SELECT_ACTIVE,            35, 35, 35,255) \
+    NK_COLOR(NK_COLOR_SLIDER,                   38, 38, 38, 255) \
+    NK_COLOR(NK_COLOR_SLIDER_CURSOR,            100,100,100,255) \
+    NK_COLOR(NK_COLOR_SLIDER_CURSOR_HOVER,      120,120,120,255) \
+    NK_COLOR(NK_COLOR_SLIDER_CURSOR_ACTIVE,     150,150,150,255) \
+    NK_COLOR(NK_COLOR_PROPERTY,                 38, 38, 38, 255) \
+    NK_COLOR(NK_COLOR_EDIT,                     38, 38, 38, 255)  \
+    NK_COLOR(NK_COLOR_EDIT_CURSOR,              175,175,175,255) \
+    NK_COLOR(NK_COLOR_COMBO,                    45, 45, 45, 255) \
+    NK_COLOR(NK_COLOR_CHART,                    120,120,120,255) \
+    NK_COLOR(NK_COLOR_CHART_COLOR,              45, 45, 45, 255) \
+    NK_COLOR(NK_COLOR_CHART_COLOR_HIGHLIGHT,    255, 0,  0, 255) \
+    NK_COLOR(NK_COLOR_SCROLLBAR,                40, 40, 40, 255) \
+    NK_COLOR(NK_COLOR_SCROLLBAR_CURSOR,         100,100,100,255) \
+    NK_COLOR(NK_COLOR_SCROLLBAR_CURSOR_HOVER,   120,120,120,255) \
+    NK_COLOR(NK_COLOR_SCROLLBAR_CURSOR_ACTIVE,  150,150,150,255) \
+    NK_COLOR(NK_COLOR_TAB_HEADER,               40, 40, 40,255)
+
+NK_GLOBAL const struct nk_color
+nk_default_color_style[NK_COLOR_COUNT] = {
+#define NK_COLOR(a,b,c,d,e) {b,c,d,e},
+    NK_COLOR_MAP(NK_COLOR)
+#undef NK_COLOR
+};
+NK_GLOBAL const char *nk_color_names[NK_COLOR_COUNT] = {
+#define NK_COLOR(a,b,c,d,e) #a,
+    NK_COLOR_MAP(NK_COLOR)
+#undef NK_COLOR
+};
+
+NK_API const char*
+nk_style_get_color_by_name(enum nk_style_colors c)
+{
+    return nk_color_names[c];
+}
+NK_API struct nk_style_item
+nk_style_item_image(struct nk_image img)
+{
+    struct nk_style_item i;
+    i.type = NK_STYLE_ITEM_IMAGE;
+    i.data.image = img;
+    return i;
+}
+NK_API struct nk_style_item
+nk_style_item_color(struct nk_color col)
+{
+    struct nk_style_item i;
+    i.type = NK_STYLE_ITEM_COLOR;
+    i.data.color = col;
+    return i;
+}
+NK_API struct nk_style_item
+nk_style_item_hide(void)
+{
+    struct nk_style_item i;
+    i.type = NK_STYLE_ITEM_COLOR;
+    i.data.color = nk_rgba(0,0,0,0);
+    return i;
+}
+NK_API void
+nk_style_from_table(struct nk_context *ctx, const struct nk_color *table)
+{
+    struct nk_style *style;
+    struct nk_style_text *text;
+    struct nk_style_button *button;
+    struct nk_style_toggle *toggle;
+    struct nk_style_selectable *select;
+    struct nk_style_slider *slider;
+    struct nk_style_progress *prog;
+    struct nk_style_scrollbar *scroll;
+    struct nk_style_edit *edit;
+    struct nk_style_property *property;
+    struct nk_style_combo *combo;
+    struct nk_style_chart *chart;
+    struct nk_style_tab *tab;
+    struct nk_style_window *win;
+
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    style = &ctx->style;
+    table = (!table) ? nk_default_color_style: table;
+
+    /* default text */
+    text = &style->text;
+    text->color = table[NK_COLOR_TEXT];
+    text->padding = nk_vec2(0,0);
+
+    /* default button */
+    button = &style->button;
+    nk_zero_struct(*button);
+    button->normal          = nk_style_item_color(table[NK_COLOR_BUTTON]);
+    button->hover           = nk_style_item_color(table[NK_COLOR_BUTTON_HOVER]);
+    button->active          = nk_style_item_color(table[NK_COLOR_BUTTON_ACTIVE]);
+    button->border_color    = table[NK_COLOR_BORDER];
+    button->text_background = table[NK_COLOR_BUTTON];
+    button->text_normal     = table[NK_COLOR_TEXT];
+    button->text_hover      = table[NK_COLOR_TEXT];
+    button->text_active     = table[NK_COLOR_TEXT];
+    button->padding         = nk_vec2(2.0f,2.0f);
+    button->image_padding   = nk_vec2(0.0f,0.0f);
+    button->touch_padding   = nk_vec2(0.0f, 0.0f);
+    button->userdata        = nk_handle_ptr(0);
+    button->text_alignment  = NK_TEXT_CENTERED;
+    button->border          = 1.0f;
+    button->rounding        = 4.0f;
+    button->draw_begin      = 0;
+    button->draw_end        = 0;
+
+    /* contextual button */
+    button = &style->contextual_button;
+    nk_zero_struct(*button);
+    button->normal          = nk_style_item_color(table[NK_COLOR_WINDOW]);
+    button->hover           = nk_style_item_color(table[NK_COLOR_BUTTON_HOVER]);
+    button->active          = nk_style_item_color(table[NK_COLOR_BUTTON_ACTIVE]);
+    button->border_color    = table[NK_COLOR_WINDOW];
+    button->text_background = table[NK_COLOR_WINDOW];
+    button->text_normal     = table[NK_COLOR_TEXT];
+    button->text_hover      = table[NK_COLOR_TEXT];
+    button->text_active     = table[NK_COLOR_TEXT];
+    button->padding         = nk_vec2(2.0f,2.0f);
+    button->touch_padding   = nk_vec2(0.0f,0.0f);
+    button->userdata        = nk_handle_ptr(0);
+    button->text_alignment  = NK_TEXT_CENTERED;
+    button->border          = 0.0f;
+    button->rounding        = 0.0f;
+    button->draw_begin      = 0;
+    button->draw_end        = 0;
+
+    /* menu button */
+    button = &style->menu_button;
+    nk_zero_struct(*button);
+    button->normal          = nk_style_item_color(table[NK_COLOR_WINDOW]);
+    button->hover           = nk_style_item_color(table[NK_COLOR_WINDOW]);
+    button->active          = nk_style_item_color(table[NK_COLOR_WINDOW]);
+    button->border_color    = table[NK_COLOR_WINDOW];
+    button->text_background = table[NK_COLOR_WINDOW];
+    button->text_normal     = table[NK_COLOR_TEXT];
+    button->text_hover      = table[NK_COLOR_TEXT];
+    button->text_active     = table[NK_COLOR_TEXT];
+    button->padding         = nk_vec2(2.0f,2.0f);
+    button->touch_padding   = nk_vec2(0.0f,0.0f);
+    button->userdata        = nk_handle_ptr(0);
+    button->text_alignment  = NK_TEXT_CENTERED;
+    button->border          = 0.0f;
+    button->rounding        = 1.0f;
+    button->draw_begin      = 0;
+    button->draw_end        = 0;
+
+    /* checkbox toggle */
+    toggle = &style->checkbox;
+    nk_zero_struct(*toggle);
+    toggle->normal          = nk_style_item_color(table[NK_COLOR_TOGGLE]);
+    toggle->hover           = nk_style_item_color(table[NK_COLOR_TOGGLE_HOVER]);
+    toggle->active          = nk_style_item_color(table[NK_COLOR_TOGGLE_HOVER]);
+    toggle->cursor_normal   = nk_style_item_color(table[NK_COLOR_TOGGLE_CURSOR]);
+    toggle->cursor_hover    = nk_style_item_color(table[NK_COLOR_TOGGLE_CURSOR]);
+    toggle->userdata        = nk_handle_ptr(0);
+    toggle->text_background = table[NK_COLOR_WINDOW];
+    toggle->text_normal     = table[NK_COLOR_TEXT];
+    toggle->text_hover      = table[NK_COLOR_TEXT];
+    toggle->text_active     = table[NK_COLOR_TEXT];
+    toggle->padding         = nk_vec2(2.0f, 2.0f);
+    toggle->touch_padding   = nk_vec2(0,0);
+    toggle->border_color    = nk_rgba(0,0,0,0);
+    toggle->border          = 0.0f;
+    toggle->spacing         = 4;
+
+    /* option toggle */
+    toggle = &style->option;
+    nk_zero_struct(*toggle);
+    toggle->normal          = nk_style_item_color(table[NK_COLOR_TOGGLE]);
+    toggle->hover           = nk_style_item_color(table[NK_COLOR_TOGGLE_HOVER]);
+    toggle->active          = nk_style_item_color(table[NK_COLOR_TOGGLE_HOVER]);
+    toggle->cursor_normal   = nk_style_item_color(table[NK_COLOR_TOGGLE_CURSOR]);
+    toggle->cursor_hover    = nk_style_item_color(table[NK_COLOR_TOGGLE_CURSOR]);
+    toggle->userdata        = nk_handle_ptr(0);
+    toggle->text_background = table[NK_COLOR_WINDOW];
+    toggle->text_normal     = table[NK_COLOR_TEXT];
+    toggle->text_hover      = table[NK_COLOR_TEXT];
+    toggle->text_active     = table[NK_COLOR_TEXT];
+    toggle->padding         = nk_vec2(3.0f, 3.0f);
+    toggle->touch_padding   = nk_vec2(0,0);
+    toggle->border_color    = nk_rgba(0,0,0,0);
+    toggle->border          = 0.0f;
+    toggle->spacing         = 4;
+
+    /* selectable */
+    select = &style->selectable;
+    nk_zero_struct(*select);
+    select->normal          = nk_style_item_color(table[NK_COLOR_SELECT]);
+    select->hover           = nk_style_item_color(table[NK_COLOR_SELECT]);
+    select->pressed         = nk_style_item_color(table[NK_COLOR_SELECT]);
+    select->normal_active   = nk_style_item_color(table[NK_COLOR_SELECT_ACTIVE]);
+    select->hover_active    = nk_style_item_color(table[NK_COLOR_SELECT_ACTIVE]);
+    select->pressed_active  = nk_style_item_color(table[NK_COLOR_SELECT_ACTIVE]);
+    select->text_normal     = table[NK_COLOR_TEXT];
+    select->text_hover      = table[NK_COLOR_TEXT];
+    select->text_pressed    = table[NK_COLOR_TEXT];
+    select->text_normal_active  = table[NK_COLOR_TEXT];
+    select->text_hover_active   = table[NK_COLOR_TEXT];
+    select->text_pressed_active = table[NK_COLOR_TEXT];
+    select->padding         = nk_vec2(2.0f,2.0f);
+    select->image_padding   = nk_vec2(2.0f,2.0f);
+    select->touch_padding   = nk_vec2(0,0);
+    select->userdata        = nk_handle_ptr(0);
+    select->rounding        = 0.0f;
+    select->draw_begin      = 0;
+    select->draw_end        = 0;
+
+    /* slider */
+    slider = &style->slider;
+    nk_zero_struct(*slider);
+    slider->normal          = nk_style_item_hide();
+    slider->hover           = nk_style_item_hide();
+    slider->active          = nk_style_item_hide();
+    slider->bar_normal      = table[NK_COLOR_SLIDER];
+    slider->bar_hover       = table[NK_COLOR_SLIDER];
+    slider->bar_active      = table[NK_COLOR_SLIDER];
+    slider->bar_filled      = table[NK_COLOR_SLIDER_CURSOR];
+    slider->cursor_normal   = nk_style_item_color(table[NK_COLOR_SLIDER_CURSOR]);
+    slider->cursor_hover    = nk_style_item_color(table[NK_COLOR_SLIDER_CURSOR_HOVER]);
+    slider->cursor_active   = nk_style_item_color(table[NK_COLOR_SLIDER_CURSOR_ACTIVE]);
+    slider->inc_symbol      = NK_SYMBOL_TRIANGLE_RIGHT;
+    slider->dec_symbol      = NK_SYMBOL_TRIANGLE_LEFT;
+    slider->cursor_size     = nk_vec2(16,16);
+    slider->padding         = nk_vec2(2,2);
+    slider->spacing         = nk_vec2(2,2);
+    slider->userdata        = nk_handle_ptr(0);
+    slider->show_buttons    = nk_false;
+    slider->bar_height      = 8;
+    slider->rounding        = 0;
+    slider->draw_begin      = 0;
+    slider->draw_end        = 0;
+
+    /* slider buttons */
+    button = &style->slider.inc_button;
+    button->normal          = nk_style_item_color(nk_rgb(40,40,40));
+    button->hover           = nk_style_item_color(nk_rgb(42,42,42));
+    button->active          = nk_style_item_color(nk_rgb(44,44,44));
+    button->border_color    = nk_rgb(65,65,65);
+    button->text_background = nk_rgb(40,40,40);
+    button->text_normal     = nk_rgb(175,175,175);
+    button->text_hover      = nk_rgb(175,175,175);
+    button->text_active     = nk_rgb(175,175,175);
+    button->padding         = nk_vec2(8.0f,8.0f);
+    button->touch_padding   = nk_vec2(0.0f,0.0f);
+    button->userdata        = nk_handle_ptr(0);
+    button->text_alignment  = NK_TEXT_CENTERED;
+    button->border          = 1.0f;
+    button->rounding        = 0.0f;
+    button->draw_begin      = 0;
+    button->draw_end        = 0;
+    style->slider.dec_button = style->slider.inc_button;
+
+    /* progressbar */
+    prog = &style->progress;
+    nk_zero_struct(*prog);
+    prog->normal            = nk_style_item_color(table[NK_COLOR_SLIDER]);
+    prog->hover             = nk_style_item_color(table[NK_COLOR_SLIDER]);
+    prog->active            = nk_style_item_color(table[NK_COLOR_SLIDER]);
+    prog->cursor_normal     = nk_style_item_color(table[NK_COLOR_SLIDER_CURSOR]);
+    prog->cursor_hover      = nk_style_item_color(table[NK_COLOR_SLIDER_CURSOR_HOVER]);
+    prog->cursor_active     = nk_style_item_color(table[NK_COLOR_SLIDER_CURSOR_ACTIVE]);
+    prog->border_color      = nk_rgba(0,0,0,0);
+    prog->cursor_border_color = nk_rgba(0,0,0,0);
+    prog->userdata          = nk_handle_ptr(0);
+    prog->padding           = nk_vec2(4,4);
+    prog->rounding          = 0;
+    prog->border            = 0;
+    prog->cursor_rounding   = 0;
+    prog->cursor_border     = 0;
+    prog->draw_begin        = 0;
+    prog->draw_end          = 0;
+
+    /* scrollbars */
+    scroll = &style->scrollh;
+    nk_zero_struct(*scroll);
+    scroll->normal          = nk_style_item_color(table[NK_COLOR_SCROLLBAR]);
+    scroll->hover           = nk_style_item_color(table[NK_COLOR_SCROLLBAR]);
+    scroll->active          = nk_style_item_color(table[NK_COLOR_SCROLLBAR]);
+    scroll->cursor_normal   = nk_style_item_color(table[NK_COLOR_SCROLLBAR_CURSOR]);
+    scroll->cursor_hover    = nk_style_item_color(table[NK_COLOR_SCROLLBAR_CURSOR_HOVER]);
+    scroll->cursor_active   = nk_style_item_color(table[NK_COLOR_SCROLLBAR_CURSOR_ACTIVE]);
+    scroll->dec_symbol      = NK_SYMBOL_CIRCLE_SOLID;
+    scroll->inc_symbol      = NK_SYMBOL_CIRCLE_SOLID;
+    scroll->userdata        = nk_handle_ptr(0);
+    scroll->border_color    = table[NK_COLOR_SCROLLBAR];
+    scroll->cursor_border_color = table[NK_COLOR_SCROLLBAR];
+    scroll->padding         = nk_vec2(0,0);
+    scroll->show_buttons    = nk_false;
+    scroll->border          = 0;
+    scroll->rounding        = 0;
+    scroll->border_cursor   = 0;
+    scroll->rounding_cursor = 0;
+    scroll->draw_begin      = 0;
+    scroll->draw_end        = 0;
+    style->scrollv = style->scrollh;
+
+    /* scrollbars buttons */
+    button = &style->scrollh.inc_button;
+    button->normal          = nk_style_item_color(nk_rgb(40,40,40));
+    button->hover           = nk_style_item_color(nk_rgb(42,42,42));
+    button->active          = nk_style_item_color(nk_rgb(44,44,44));
+    button->border_color    = nk_rgb(65,65,65);
+    button->text_background = nk_rgb(40,40,40);
+    button->text_normal     = nk_rgb(175,175,175);
+    button->text_hover      = nk_rgb(175,175,175);
+    button->text_active     = nk_rgb(175,175,175);
+    button->padding         = nk_vec2(4.0f,4.0f);
+    button->touch_padding   = nk_vec2(0.0f,0.0f);
+    button->userdata        = nk_handle_ptr(0);
+    button->text_alignment  = NK_TEXT_CENTERED;
+    button->border          = 1.0f;
+    button->rounding        = 0.0f;
+    button->draw_begin      = 0;
+    button->draw_end        = 0;
+    style->scrollh.dec_button = style->scrollh.inc_button;
+    style->scrollv.inc_button = style->scrollh.inc_button;
+    style->scrollv.dec_button = style->scrollh.inc_button;
+
+    /* edit */
+    edit = &style->edit;
+    nk_zero_struct(*edit);
+    edit->normal            = nk_style_item_color(table[NK_COLOR_EDIT]);
+    edit->hover             = nk_style_item_color(table[NK_COLOR_EDIT]);
+    edit->active            = nk_style_item_color(table[NK_COLOR_EDIT]);
+    edit->cursor_normal     = table[NK_COLOR_TEXT];
+    edit->cursor_hover      = table[NK_COLOR_TEXT];
+    edit->cursor_text_normal= table[NK_COLOR_EDIT];
+    edit->cursor_text_hover = table[NK_COLOR_EDIT];
+    edit->border_color      = table[NK_COLOR_BORDER];
+    edit->text_normal       = table[NK_COLOR_TEXT];
+    edit->text_hover        = table[NK_COLOR_TEXT];
+    edit->text_active       = table[NK_COLOR_TEXT];
+    edit->selected_normal   = table[NK_COLOR_TEXT];
+    edit->selected_hover    = table[NK_COLOR_TEXT];
+    edit->selected_text_normal  = table[NK_COLOR_EDIT];
+    edit->selected_text_hover   = table[NK_COLOR_EDIT];
+    edit->scrollbar_size    = nk_vec2(10,10);
+    edit->scrollbar         = style->scrollv;
+    edit->padding           = nk_vec2(4,4);
+    edit->row_padding       = 2;
+    edit->cursor_size       = 4;
+    edit->border            = 1;
+    edit->rounding          = 0;
+
+    /* property */
+    property = &style->property;
+    nk_zero_struct(*property);
+    property->normal        = nk_style_item_color(table[NK_COLOR_PROPERTY]);
+    property->hover         = nk_style_item_color(table[NK_COLOR_PROPERTY]);
+    property->active        = nk_style_item_color(table[NK_COLOR_PROPERTY]);
+    property->border_color  = table[NK_COLOR_BORDER];
+    property->label_normal  = table[NK_COLOR_TEXT];
+    property->label_hover   = table[NK_COLOR_TEXT];
+    property->label_active  = table[NK_COLOR_TEXT];
+    property->sym_left      = NK_SYMBOL_TRIANGLE_LEFT;
+    property->sym_right     = NK_SYMBOL_TRIANGLE_RIGHT;
+    property->userdata      = nk_handle_ptr(0);
+    property->padding       = nk_vec2(4,4);
+    property->border        = 1;
+    property->rounding      = 10;
+    property->draw_begin    = 0;
+    property->draw_end      = 0;
+
+    /* property buttons */
+    button = &style->property.dec_button;
+    nk_zero_struct(*button);
+    button->normal          = nk_style_item_color(table[NK_COLOR_PROPERTY]);
+    button->hover           = nk_style_item_color(table[NK_COLOR_PROPERTY]);
+    button->active          = nk_style_item_color(table[NK_COLOR_PROPERTY]);
+    button->border_color    = nk_rgba(0,0,0,0);
+    button->text_background = table[NK_COLOR_PROPERTY];
+    button->text_normal     = table[NK_COLOR_TEXT];
+    button->text_hover      = table[NK_COLOR_TEXT];
+    button->text_active     = table[NK_COLOR_TEXT];
+    button->padding         = nk_vec2(0.0f,0.0f);
+    button->touch_padding   = nk_vec2(0.0f,0.0f);
+    button->userdata        = nk_handle_ptr(0);
+    button->text_alignment  = NK_TEXT_CENTERED;
+    button->border          = 0.0f;
+    button->rounding        = 0.0f;
+    button->draw_begin      = 0;
+    button->draw_end        = 0;
+    style->property.inc_button = style->property.dec_button;
+
+    /* property edit */
+    edit = &style->property.edit;
+    nk_zero_struct(*edit);
+    edit->normal            = nk_style_item_color(table[NK_COLOR_PROPERTY]);
+    edit->hover             = nk_style_item_color(table[NK_COLOR_PROPERTY]);
+    edit->active            = nk_style_item_color(table[NK_COLOR_PROPERTY]);
+    edit->border_color      = nk_rgba(0,0,0,0);
+    edit->cursor_normal     = table[NK_COLOR_TEXT];
+    edit->cursor_hover      = table[NK_COLOR_TEXT];
+    edit->cursor_text_normal= table[NK_COLOR_EDIT];
+    edit->cursor_text_hover = table[NK_COLOR_EDIT];
+    edit->text_normal       = table[NK_COLOR_TEXT];
+    edit->text_hover        = table[NK_COLOR_TEXT];
+    edit->text_active       = table[NK_COLOR_TEXT];
+    edit->selected_normal   = table[NK_COLOR_TEXT];
+    edit->selected_hover    = table[NK_COLOR_TEXT];
+    edit->selected_text_normal  = table[NK_COLOR_EDIT];
+    edit->selected_text_hover   = table[NK_COLOR_EDIT];
+    edit->padding           = nk_vec2(0,0);
+    edit->cursor_size       = 8;
+    edit->border            = 0;
+    edit->rounding          = 0;
+
+    /* chart */
+    chart = &style->chart;
+    nk_zero_struct(*chart);
+    chart->background       = nk_style_item_color(table[NK_COLOR_CHART]);
+    chart->border_color     = table[NK_COLOR_BORDER];
+    chart->selected_color   = table[NK_COLOR_CHART_COLOR_HIGHLIGHT];
+    chart->color            = table[NK_COLOR_CHART_COLOR];
+    chart->padding          = nk_vec2(4,4);
+    chart->border           = 0;
+    chart->rounding         = 0;
+
+    /* combo */
+    combo = &style->combo;
+    combo->normal           = nk_style_item_color(table[NK_COLOR_COMBO]);
+    combo->hover            = nk_style_item_color(table[NK_COLOR_COMBO]);
+    combo->active           = nk_style_item_color(table[NK_COLOR_COMBO]);
+    combo->border_color     = table[NK_COLOR_BORDER];
+    combo->label_normal     = table[NK_COLOR_TEXT];
+    combo->label_hover      = table[NK_COLOR_TEXT];
+    combo->label_active     = table[NK_COLOR_TEXT];
+    combo->sym_normal       = NK_SYMBOL_TRIANGLE_DOWN;
+    combo->sym_hover        = NK_SYMBOL_TRIANGLE_DOWN;
+    combo->sym_active       = NK_SYMBOL_TRIANGLE_DOWN;
+    combo->content_padding  = nk_vec2(4,4);
+    combo->button_padding   = nk_vec2(0,4);
+    combo->spacing          = nk_vec2(4,0);
+    combo->border           = 1;
+    combo->rounding         = 0;
+
+    /* combo button */
+    button = &style->combo.button;
+    nk_zero_struct(*button);
+    button->normal          = nk_style_item_color(table[NK_COLOR_COMBO]);
+    button->hover           = nk_style_item_color(table[NK_COLOR_COMBO]);
+    button->active          = nk_style_item_color(table[NK_COLOR_COMBO]);
+    button->border_color    = nk_rgba(0,0,0,0);
+    button->text_background = table[NK_COLOR_COMBO];
+    button->text_normal     = table[NK_COLOR_TEXT];
+    button->text_hover      = table[NK_COLOR_TEXT];
+    button->text_active     = table[NK_COLOR_TEXT];
+    button->padding         = nk_vec2(2.0f,2.0f);
+    button->touch_padding   = nk_vec2(0.0f,0.0f);
+    button->userdata        = nk_handle_ptr(0);
+    button->text_alignment  = NK_TEXT_CENTERED;
+    button->border          = 0.0f;
+    button->rounding        = 0.0f;
+    button->draw_begin      = 0;
+    button->draw_end        = 0;
+
+    /* tab */
+    tab = &style->tab;
+    tab->background         = nk_style_item_color(table[NK_COLOR_TAB_HEADER]);
+    tab->border_color       = table[NK_COLOR_BORDER];
+    tab->text               = table[NK_COLOR_TEXT];
+    tab->sym_minimize       = NK_SYMBOL_TRIANGLE_RIGHT;
+    tab->sym_maximize       = NK_SYMBOL_TRIANGLE_DOWN;
+    tab->padding            = nk_vec2(4,4);
+    tab->spacing            = nk_vec2(4,4);
+    tab->indent             = 10.0f;
+    tab->border             = 1;
+    tab->rounding           = 0;
+
+    /* tab button */
+    button = &style->tab.tab_minimize_button;
+    nk_zero_struct(*button);
+    button->normal          = nk_style_item_color(table[NK_COLOR_TAB_HEADER]);
+    button->hover           = nk_style_item_color(table[NK_COLOR_TAB_HEADER]);
+    button->active          = nk_style_item_color(table[NK_COLOR_TAB_HEADER]);
+    button->border_color    = nk_rgba(0,0,0,0);
+    button->text_background = table[NK_COLOR_TAB_HEADER];
+    button->text_normal     = table[NK_COLOR_TEXT];
+    button->text_hover      = table[NK_COLOR_TEXT];
+    button->text_active     = table[NK_COLOR_TEXT];
+    button->padding         = nk_vec2(2.0f,2.0f);
+    button->touch_padding   = nk_vec2(0.0f,0.0f);
+    button->userdata        = nk_handle_ptr(0);
+    button->text_alignment  = NK_TEXT_CENTERED;
+    button->border          = 0.0f;
+    button->rounding        = 0.0f;
+    button->draw_begin      = 0;
+    button->draw_end        = 0;
+    style->tab.tab_maximize_button =*button;
+
+    /* node button */
+    button = &style->tab.node_minimize_button;
+    nk_zero_struct(*button);
+    button->normal          = nk_style_item_color(table[NK_COLOR_WINDOW]);
+    button->hover           = nk_style_item_color(table[NK_COLOR_WINDOW]);
+    button->active          = nk_style_item_color(table[NK_COLOR_WINDOW]);
+    button->border_color    = nk_rgba(0,0,0,0);
+    button->text_background = table[NK_COLOR_TAB_HEADER];
+    button->text_normal     = table[NK_COLOR_TEXT];
+    button->text_hover      = table[NK_COLOR_TEXT];
+    button->text_active     = table[NK_COLOR_TEXT];
+    button->padding         = nk_vec2(2.0f,2.0f);
+    button->touch_padding   = nk_vec2(0.0f,0.0f);
+    button->userdata        = nk_handle_ptr(0);
+    button->text_alignment  = NK_TEXT_CENTERED;
+    button->border          = 0.0f;
+    button->rounding        = 0.0f;
+    button->draw_begin      = 0;
+    button->draw_end        = 0;
+    style->tab.node_maximize_button =*button;
+
+    /* window header */
+    win = &style->window;
+    win->header.align = NK_HEADER_RIGHT;
+    win->header.close_symbol = NK_SYMBOL_X;
+    win->header.minimize_symbol = NK_SYMBOL_MINUS;
+    win->header.maximize_symbol = NK_SYMBOL_PLUS;
+    win->header.normal = nk_style_item_color(table[NK_COLOR_HEADER]);
+    win->header.hover = nk_style_item_color(table[NK_COLOR_HEADER]);
+    win->header.active = nk_style_item_color(table[NK_COLOR_HEADER]);
+    win->header.label_normal = table[NK_COLOR_TEXT];
+    win->header.label_hover = table[NK_COLOR_TEXT];
+    win->header.label_active = table[NK_COLOR_TEXT];
+    win->header.label_padding = nk_vec2(4,4);
+    win->header.padding = nk_vec2(4,4);
+    win->header.spacing = nk_vec2(0,0);
+
+    /* window header close button */
+    button = &style->window.header.close_button;
+    nk_zero_struct(*button);
+    button->normal          = nk_style_item_color(table[NK_COLOR_HEADER]);
+    button->hover           = nk_style_item_color(table[NK_COLOR_HEADER]);
+    button->active          = nk_style_item_color(table[NK_COLOR_HEADER]);
+    button->border_color    = nk_rgba(0,0,0,0);
+    button->text_background = table[NK_COLOR_HEADER];
+    button->text_normal     = table[NK_COLOR_TEXT];
+    button->text_hover      = table[NK_COLOR_TEXT];
+    button->text_active     = table[NK_COLOR_TEXT];
+    button->padding         = nk_vec2(0.0f,0.0f);
+    button->touch_padding   = nk_vec2(0.0f,0.0f);
+    button->userdata        = nk_handle_ptr(0);
+    button->text_alignment  = NK_TEXT_CENTERED;
+    button->border          = 0.0f;
+    button->rounding        = 0.0f;
+    button->draw_begin      = 0;
+    button->draw_end        = 0;
+
+    /* window header minimize button */
+    button = &style->window.header.minimize_button;
+    nk_zero_struct(*button);
+    button->normal          = nk_style_item_color(table[NK_COLOR_HEADER]);
+    button->hover           = nk_style_item_color(table[NK_COLOR_HEADER]);
+    button->active          = nk_style_item_color(table[NK_COLOR_HEADER]);
+    button->border_color    = nk_rgba(0,0,0,0);
+    button->text_background = table[NK_COLOR_HEADER];
+    button->text_normal     = table[NK_COLOR_TEXT];
+    button->text_hover      = table[NK_COLOR_TEXT];
+    button->text_active     = table[NK_COLOR_TEXT];
+    button->padding         = nk_vec2(0.0f,0.0f);
+    button->touch_padding   = nk_vec2(0.0f,0.0f);
+    button->userdata        = nk_handle_ptr(0);
+    button->text_alignment  = NK_TEXT_CENTERED;
+    button->border          = 0.0f;
+    button->rounding        = 0.0f;
+    button->draw_begin      = 0;
+    button->draw_end        = 0;
+
+    /* window */
+    win->background = table[NK_COLOR_WINDOW];
+    win->fixed_background = nk_style_item_color(table[NK_COLOR_WINDOW]);
+    win->border_color = table[NK_COLOR_BORDER];
+    win->popup_border_color = table[NK_COLOR_BORDER];
+    win->combo_border_color = table[NK_COLOR_BORDER];
+    win->contextual_border_color = table[NK_COLOR_BORDER];
+    win->menu_border_color = table[NK_COLOR_BORDER];
+    win->group_border_color = table[NK_COLOR_BORDER];
+    win->tooltip_border_color = table[NK_COLOR_BORDER];
+    win->scaler = nk_style_item_color(table[NK_COLOR_TEXT]);
+
+    win->rounding = 0.0f;
+    win->spacing = nk_vec2(4,4);
+    win->scrollbar_size = nk_vec2(10,10);
+    win->min_size = nk_vec2(64,64);
+
+    win->combo_border = 1.0f;
+    win->contextual_border = 1.0f;
+    win->menu_border = 1.0f;
+    win->group_border = 1.0f;
+    win->tooltip_border = 1.0f;
+    win->popup_border = 1.0f;
+    win->border = 2.0f;
+    win->min_row_height_padding = 8;
+
+    win->padding = nk_vec2(4,4);
+    win->group_padding = nk_vec2(4,4);
+    win->popup_padding = nk_vec2(4,4);
+    win->combo_padding = nk_vec2(4,4);
+    win->contextual_padding = nk_vec2(4,4);
+    win->menu_padding = nk_vec2(4,4);
+    win->tooltip_padding = nk_vec2(4,4);
+}
+NK_API void
+nk_style_set_font(struct nk_context *ctx, const struct nk_user_font *font)
+{
+    struct nk_style *style;
+    NK_ASSERT(ctx);
+
+    if (!ctx) return;
+    style = &ctx->style;
+    style->font = font;
+    ctx->stacks.fonts.head = 0;
+    if (ctx->current)
+        nk_layout_reset_min_row_height(ctx);
+}
+NK_API int
+nk_style_push_font(struct nk_context *ctx, const struct nk_user_font *font)
+{
+    struct nk_config_stack_user_font *font_stack;
+    struct nk_config_stack_user_font_element *element;
+
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+
+    font_stack = &ctx->stacks.fonts;
+    NK_ASSERT(font_stack->head < (int)NK_LEN(font_stack->elements));
+    if (font_stack->head >= (int)NK_LEN(font_stack->elements))
+        return 0;
+
+    element = &font_stack->elements[font_stack->head++];
+    element->address = &ctx->style.font;
+    element->old_value = ctx->style.font;
+    ctx->style.font = font;
+    return 1;
+}
+NK_API int
+nk_style_pop_font(struct nk_context *ctx)
+{
+    struct nk_config_stack_user_font *font_stack;
+    struct nk_config_stack_user_font_element *element;
+
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+
+    font_stack = &ctx->stacks.fonts;
+    NK_ASSERT(font_stack->head > 0);
+    if (font_stack->head < 1)
+        return 0;
+
+    element = &font_stack->elements[--font_stack->head];
+    *element->address = element->old_value;
+    return 1;
+}
+#define NK_STYLE_PUSH_IMPLEMENATION(prefix, type, stack) \
+nk_style_push_##type(struct nk_context *ctx, prefix##_##type *address, prefix##_##type value)\
+{\
+    struct nk_config_stack_##type * type_stack;\
+    struct nk_config_stack_##type##_element *element;\
+    NK_ASSERT(ctx);\
+    if (!ctx) return 0;\
+    type_stack = &ctx->stacks.stack;\
+    NK_ASSERT(type_stack->head < (int)NK_LEN(type_stack->elements));\
+    if (type_stack->head >= (int)NK_LEN(type_stack->elements))\
+        return 0;\
+    element = &type_stack->elements[type_stack->head++];\
+    element->address = address;\
+    element->old_value = *address;\
+    *address = value;\
+    return 1;\
+}
+#define NK_STYLE_POP_IMPLEMENATION(type, stack) \
+nk_style_pop_##type(struct nk_context *ctx)\
+{\
+    struct nk_config_stack_##type *type_stack;\
+    struct nk_config_stack_##type##_element *element;\
+    NK_ASSERT(ctx);\
+    if (!ctx) return 0;\
+    type_stack = &ctx->stacks.stack;\
+    NK_ASSERT(type_stack->head > 0);\
+    if (type_stack->head < 1)\
+        return 0;\
+    element = &type_stack->elements[--type_stack->head];\
+    *element->address = element->old_value;\
+    return 1;\
+}
+NK_API int NK_STYLE_PUSH_IMPLEMENATION(struct nk, style_item, style_items)
+NK_API int NK_STYLE_PUSH_IMPLEMENATION(nk,float, floats)
+NK_API int NK_STYLE_PUSH_IMPLEMENATION(struct nk, vec2, vectors)
+NK_API int NK_STYLE_PUSH_IMPLEMENATION(nk,flags, flags)
+NK_API int NK_STYLE_PUSH_IMPLEMENATION(struct nk,color, colors)
+
+NK_API int NK_STYLE_POP_IMPLEMENATION(style_item, style_items)
+NK_API int NK_STYLE_POP_IMPLEMENATION(float,floats)
+NK_API int NK_STYLE_POP_IMPLEMENATION(vec2, vectors)
+NK_API int NK_STYLE_POP_IMPLEMENATION(flags,flags)
+NK_API int NK_STYLE_POP_IMPLEMENATION(color,colors)
+
+NK_API int
+nk_style_set_cursor(struct nk_context *ctx, enum nk_style_cursor c)
+{
+    struct nk_style *style;
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+    style = &ctx->style;
+    if (style->cursors[c]) {
+        style->cursor_active = style->cursors[c];
+        return 1;
+    }
+    return 0;
+}
+NK_API void
+nk_style_show_cursor(struct nk_context *ctx)
+{
+    ctx->style.cursor_visible = nk_true;
+}
+NK_API void
+nk_style_hide_cursor(struct nk_context *ctx)
+{
+    ctx->style.cursor_visible = nk_false;
+}
+NK_API void
+nk_style_load_cursor(struct nk_context *ctx, enum nk_style_cursor cursor,
+    const struct nk_cursor *c)
+{
+    struct nk_style *style;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    style = &ctx->style;
+    style->cursors[cursor] = c;
+}
+NK_API void
+nk_style_load_all_cursors(struct nk_context *ctx, struct nk_cursor *cursors)
+{
+    int i = 0;
+    struct nk_style *style;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    style = &ctx->style;
+    for (i = 0; i < NK_CURSOR_COUNT; ++i)
+        style->cursors[i] = &cursors[i];
+    style->cursor_visible = nk_true;
+}
+
+
+
+
+
+/* ==============================================================
+ *
+ *                          CONTEXT
+ *
+ * ===============================================================*/
+NK_INTERN void
+nk_setup(struct nk_context *ctx, const struct nk_user_font *font)
+{
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    nk_zero_struct(*ctx);
+    nk_style_default(ctx);
+    ctx->seq = 1;
+    if (font) ctx->style.font = font;
+#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
+    nk_draw_list_init(&ctx->draw_list);
+#endif
+}
+#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
+NK_API int
+nk_init_default(struct nk_context *ctx, const struct nk_user_font *font)
+{
+    struct nk_allocator alloc;
+    alloc.userdata.ptr = 0;
+    alloc.alloc = nk_malloc;
+    alloc.free = nk_mfree;
+    return nk_init(ctx, &alloc, font);
+}
+#endif
+NK_API int
+nk_init_fixed(struct nk_context *ctx, void *memory, nk_size size,
+    const struct nk_user_font *font)
+{
+    NK_ASSERT(memory);
+    if (!memory) return 0;
+    nk_setup(ctx, font);
+    nk_buffer_init_fixed(&ctx->memory, memory, size);
+    ctx->use_pool = nk_false;
+    return 1;
+}
+NK_API int
+nk_init_custom(struct nk_context *ctx, struct nk_buffer *cmds,
+    struct nk_buffer *pool, const struct nk_user_font *font)
+{
+    NK_ASSERT(cmds);
+    NK_ASSERT(pool);
+    if (!cmds || !pool) return 0;
+
+    nk_setup(ctx, font);
+    ctx->memory = *cmds;
+    if (pool->type == NK_BUFFER_FIXED) {
+        /* take memory from buffer and alloc fixed pool */
+        nk_pool_init_fixed(&ctx->pool, pool->memory.ptr, pool->memory.size);
+    } else {
+        /* create dynamic pool from buffer allocator */
+        struct nk_allocator *alloc = &pool->pool;
+        nk_pool_init(&ctx->pool, alloc, NK_POOL_DEFAULT_CAPACITY);
+    }
+    ctx->use_pool = nk_true;
+    return 1;
+}
+NK_API int
+nk_init(struct nk_context *ctx, struct nk_allocator *alloc,
+    const struct nk_user_font *font)
+{
+    NK_ASSERT(alloc);
+    if (!alloc) return 0;
+    nk_setup(ctx, font);
+    nk_buffer_init(&ctx->memory, alloc, NK_DEFAULT_COMMAND_BUFFER_SIZE);
+    nk_pool_init(&ctx->pool, alloc, NK_POOL_DEFAULT_CAPACITY);
+    ctx->use_pool = nk_true;
+    return 1;
+}
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+NK_API void
+nk_set_user_data(struct nk_context *ctx, nk_handle handle)
+{
+    if (!ctx) return;
+    ctx->userdata = handle;
+    if (ctx->current)
+        ctx->current->buffer.userdata = handle;
+}
+#endif
+NK_API void
+nk_free(struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    nk_buffer_free(&ctx->memory);
+    if (ctx->use_pool)
+        nk_pool_free(&ctx->pool);
+
+    nk_zero(&ctx->input, sizeof(ctx->input));
+    nk_zero(&ctx->style, sizeof(ctx->style));
+    nk_zero(&ctx->memory, sizeof(ctx->memory));
+
+    ctx->seq = 0;
+    ctx->build = 0;
+    ctx->begin = 0;
+    ctx->end = 0;
+    ctx->active = 0;
+    ctx->current = 0;
+    ctx->freelist = 0;
+    ctx->count = 0;
+}
+NK_API void
+nk_clear(struct nk_context *ctx)
+{
+    struct nk_window *iter;
+    struct nk_window *next;
+    NK_ASSERT(ctx);
+
+    if (!ctx) return;
+    if (ctx->use_pool)
+        nk_buffer_clear(&ctx->memory);
+    else nk_buffer_reset(&ctx->memory, NK_BUFFER_FRONT);
+
+    ctx->build = 0;
+    ctx->memory.calls = 0;
+    ctx->last_widget_state = 0;
+    ctx->style.cursor_active = ctx->style.cursors[NK_CURSOR_ARROW];
+    NK_MEMSET(&ctx->overlay, 0, sizeof(ctx->overlay));
+
+    /* garbage collector */
+    iter = ctx->begin;
+    while (iter) {
+        /* make sure valid minimized windows do not get removed */
+        if ((iter->flags & NK_WINDOW_MINIMIZED) &&
+            !(iter->flags & NK_WINDOW_CLOSED) &&
+            iter->seq == ctx->seq) {
+            iter = iter->next;
+            continue;
+        }
+        /* remove hotness from hidden or closed windows*/
+        if (((iter->flags & NK_WINDOW_HIDDEN) ||
+            (iter->flags & NK_WINDOW_CLOSED)) &&
+            iter == ctx->active) {
+            ctx->active = iter->prev;
+            ctx->end = iter->prev;
+            if (!ctx->end)
+                ctx->begin = 0;
+            if (ctx->active)
+                ctx->active->flags &= ~(unsigned)NK_WINDOW_ROM;
+        }
+        /* free unused popup windows */
+        if (iter->popup.win && iter->popup.win->seq != ctx->seq) {
+            nk_free_window(ctx, iter->popup.win);
+            iter->popup.win = 0;
+        }
+        /* remove unused window state tables */
+        {struct nk_table *n, *it = iter->tables;
+        while (it) {
+            n = it->next;
+            if (it->seq != ctx->seq) {
+                nk_remove_table(iter, it);
+                nk_zero(it, sizeof(union nk_page_data));
+                nk_free_table(ctx, it);
+                if (it == iter->tables)
+                    iter->tables = n;
+            } it = n;
+        }}
+        /* window itself is not used anymore so free */
+        if (iter->seq != ctx->seq || iter->flags & NK_WINDOW_CLOSED) {
+            next = iter->next;
+            nk_remove_window(ctx, iter);
+            nk_free_window(ctx, iter);
+            iter = next;
+        } else iter = iter->next;
+    }
+    ctx->seq++;
+}
+NK_LIB void
+nk_start_buffer(struct nk_context *ctx, struct nk_command_buffer *buffer)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(buffer);
+    if (!ctx || !buffer) return;
+    buffer->begin = ctx->memory.allocated;
+    buffer->end = buffer->begin;
+    buffer->last = buffer->begin;
+    buffer->clip = nk_null_rect;
+}
+NK_LIB void
+nk_start(struct nk_context *ctx, struct nk_window *win)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(win);
+    nk_start_buffer(ctx, &win->buffer);
+}
+NK_LIB void
+nk_start_popup(struct nk_context *ctx, struct nk_window *win)
+{
+    struct nk_popup_buffer *buf;
+    NK_ASSERT(ctx);
+    NK_ASSERT(win);
+    if (!ctx || !win) return;
+
+    /* save buffer fill state for popup */
+    buf = &win->popup.buf;
+    buf->begin = win->buffer.end;
+    buf->end = win->buffer.end;
+    buf->parent = win->buffer.last;
+    buf->last = buf->begin;
+    buf->active = nk_true;
+}
+NK_LIB void
+nk_finish_popup(struct nk_context *ctx, struct nk_window *win)
+{
+    struct nk_popup_buffer *buf;
+    NK_ASSERT(ctx);
+    NK_ASSERT(win);
+    if (!ctx || !win) return;
+
+    buf = &win->popup.buf;
+    buf->last = win->buffer.last;
+    buf->end = win->buffer.end;
+}
+NK_LIB void
+nk_finish_buffer(struct nk_context *ctx, struct nk_command_buffer *buffer)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(buffer);
+    if (!ctx || !buffer) return;
+    buffer->end = ctx->memory.allocated;
+}
+NK_LIB void
+nk_finish(struct nk_context *ctx, struct nk_window *win)
+{
+    struct nk_popup_buffer *buf;
+    struct nk_command *parent_last;
+    void *memory;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(win);
+    if (!ctx || !win) return;
+    nk_finish_buffer(ctx, &win->buffer);
+    if (!win->popup.buf.active) return;
+
+    buf = &win->popup.buf;
+    memory = ctx->memory.memory.ptr;
+    parent_last = nk_ptr_add(struct nk_command, memory, buf->parent);
+    parent_last->next = buf->end;
+}
+NK_LIB void
+nk_build(struct nk_context *ctx)
+{
+    struct nk_window *it = 0;
+    struct nk_command *cmd = 0;
+    nk_byte *buffer = 0;
+
+    /* draw cursor overlay */
+    if (!ctx->style.cursor_active)
+        ctx->style.cursor_active = ctx->style.cursors[NK_CURSOR_ARROW];
+    if (ctx->style.cursor_active && !ctx->input.mouse.grabbed && ctx->style.cursor_visible) {
+        struct nk_rect mouse_bounds;
+        const struct nk_cursor *cursor = ctx->style.cursor_active;
+        nk_command_buffer_init(&ctx->overlay, &ctx->memory, NK_CLIPPING_OFF);
+        nk_start_buffer(ctx, &ctx->overlay);
+
+        mouse_bounds.x = ctx->input.mouse.pos.x - cursor->offset.x;
+        mouse_bounds.y = ctx->input.mouse.pos.y - cursor->offset.y;
+        mouse_bounds.w = cursor->size.x;
+        mouse_bounds.h = cursor->size.y;
+
+        nk_draw_image(&ctx->overlay, mouse_bounds, &cursor->img, nk_white);
+        nk_finish_buffer(ctx, &ctx->overlay);
+    }
+    /* build one big draw command list out of all window buffers */
+    it = ctx->begin;
+    buffer = (nk_byte*)ctx->memory.memory.ptr;
+    while (it != 0) {
+        struct nk_window *next = it->next;
+        if (it->buffer.last == it->buffer.begin || (it->flags & NK_WINDOW_HIDDEN)||
+            it->seq != ctx->seq)
+            goto cont;
+
+        cmd = nk_ptr_add(struct nk_command, buffer, it->buffer.last);
+        while (next && ((next->buffer.last == next->buffer.begin) ||
+            (next->flags & NK_WINDOW_HIDDEN) || next->seq != ctx->seq))
+            next = next->next; /* skip empty command buffers */
+
+        if (next) cmd->next = next->buffer.begin;
+        cont: it = next;
+    }
+    /* append all popup draw commands into lists */
+    it = ctx->begin;
+    while (it != 0) {
+        struct nk_window *next = it->next;
+        struct nk_popup_buffer *buf;
+        if (!it->popup.buf.active)
+            goto skip;
+
+        buf = &it->popup.buf;
+        cmd->next = buf->begin;
+        cmd = nk_ptr_add(struct nk_command, buffer, buf->last);
+        buf->active = nk_false;
+        skip: it = next;
+    }
+    if (cmd) {
+        /* append overlay commands */
+        if (ctx->overlay.end != ctx->overlay.begin)
+            cmd->next = ctx->overlay.begin;
+        else cmd->next = ctx->memory.allocated;
+    }
+}
+NK_API const struct nk_command*
+nk__begin(struct nk_context *ctx)
+{
+    struct nk_window *iter;
+    nk_byte *buffer;
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+    if (!ctx->count) return 0;
+
+    buffer = (nk_byte*)ctx->memory.memory.ptr;
+    if (!ctx->build) {
+        nk_build(ctx);
+        ctx->build = nk_true;
+    }
+    iter = ctx->begin;
+    while (iter && ((iter->buffer.begin == iter->buffer.end) ||
+        (iter->flags & NK_WINDOW_HIDDEN) || iter->seq != ctx->seq))
+        iter = iter->next;
+    if (!iter) return 0;
+    return nk_ptr_add_const(struct nk_command, buffer, iter->buffer.begin);
+}
+
+NK_API const struct nk_command*
+nk__next(struct nk_context *ctx, const struct nk_command *cmd)
+{
+    nk_byte *buffer;
+    const struct nk_command *next;
+    NK_ASSERT(ctx);
+    if (!ctx || !cmd || !ctx->count) return 0;
+    if (cmd->next >= ctx->memory.allocated) return 0;
+    buffer = (nk_byte*)ctx->memory.memory.ptr;
+    next = nk_ptr_add_const(struct nk_command, buffer, cmd->next);
+    return next;
+}
+
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              POOL
+ *
+ * ===============================================================*/
+NK_LIB void
+nk_pool_init(struct nk_pool *pool, struct nk_allocator *alloc,
+    unsigned int capacity)
+{
+    nk_zero(pool, sizeof(*pool));
+    pool->alloc = *alloc;
+    pool->capacity = capacity;
+    pool->type = NK_BUFFER_DYNAMIC;
+    pool->pages = 0;
+}
+NK_LIB void
+nk_pool_free(struct nk_pool *pool)
+{
+    struct nk_page *iter = pool->pages;
+    if (!pool) return;
+    if (pool->type == NK_BUFFER_FIXED) return;
+    while (iter) {
+        struct nk_page *next = iter->next;
+        pool->alloc.free(pool->alloc.userdata, iter);
+        iter = next;
+    }
+}
+NK_LIB void
+nk_pool_init_fixed(struct nk_pool *pool, void *memory, nk_size size)
+{
+    nk_zero(pool, sizeof(*pool));
+    NK_ASSERT(size >= sizeof(struct nk_page));
+    if (size < sizeof(struct nk_page)) return;
+    pool->capacity = (unsigned)(size - sizeof(struct nk_page)) / sizeof(struct nk_page_element);
+    pool->pages = (struct nk_page*)memory;
+    pool->type = NK_BUFFER_FIXED;
+    pool->size = size;
+}
+NK_LIB struct nk_page_element*
+nk_pool_alloc(struct nk_pool *pool)
+{
+    if (!pool->pages || pool->pages->size >= pool->capacity) {
+        /* allocate new page */
+        struct nk_page *page;
+        if (pool->type == NK_BUFFER_FIXED) {
+            NK_ASSERT(pool->pages);
+            if (!pool->pages) return 0;
+            NK_ASSERT(pool->pages->size < pool->capacity);
+            return 0;
+        } else {
+            nk_size size = sizeof(struct nk_page);
+            size += NK_POOL_DEFAULT_CAPACITY * sizeof(union nk_page_data);
+            page = (struct nk_page*)pool->alloc.alloc(pool->alloc.userdata,0, size);
+            page->next = pool->pages;
+            pool->pages = page;
+            page->size = 0;
+        }
+    } return &pool->pages->win[pool->pages->size++];
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                          PAGE ELEMENT
+ *
+ * ===============================================================*/
+NK_LIB struct nk_page_element*
+nk_create_page_element(struct nk_context *ctx)
+{
+    struct nk_page_element *elem;
+    if (ctx->freelist) {
+        /* unlink page element from free list */
+        elem = ctx->freelist;
+        ctx->freelist = elem->next;
+    } else if (ctx->use_pool) {
+        /* allocate page element from memory pool */
+        elem = nk_pool_alloc(&ctx->pool);
+        NK_ASSERT(elem);
+        if (!elem) return 0;
+    } else {
+        /* allocate new page element from back of fixed size memory buffer */
+        NK_STORAGE const nk_size size = sizeof(struct nk_page_element);
+        NK_STORAGE const nk_size align = NK_ALIGNOF(struct nk_page_element);
+        elem = (struct nk_page_element*)nk_buffer_alloc(&ctx->memory, NK_BUFFER_BACK, size, align);
+        NK_ASSERT(elem);
+        if (!elem) return 0;
+    }
+    nk_zero_struct(*elem);
+    elem->next = 0;
+    elem->prev = 0;
+    return elem;
+}
+NK_LIB void
+nk_link_page_element_into_freelist(struct nk_context *ctx,
+    struct nk_page_element *elem)
+{
+    /* link table into freelist */
+    if (!ctx->freelist) {
+        ctx->freelist = elem;
+    } else {
+        elem->next = ctx->freelist;
+        ctx->freelist = elem;
+    }
+}
+NK_LIB void
+nk_free_page_element(struct nk_context *ctx, struct nk_page_element *elem)
+{
+    /* we have a pool so just add to free list */
+    if (ctx->use_pool) {
+        nk_link_page_element_into_freelist(ctx, elem);
+        return;
+    }
+    /* if possible remove last element from back of fixed memory buffer */
+    {void *elem_end = (void*)(elem + 1);
+    void *buffer_end = (nk_byte*)ctx->memory.memory.ptr + ctx->memory.size;
+    if (elem_end == buffer_end)
+        ctx->memory.size -= sizeof(struct nk_page_element);
+    else nk_link_page_element_into_freelist(ctx, elem);}
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              TABLE
+ *
+ * ===============================================================*/
+NK_LIB struct nk_table*
+nk_create_table(struct nk_context *ctx)
+{
+    struct nk_page_element *elem;
+    elem = nk_create_page_element(ctx);
+    if (!elem) return 0;
+    nk_zero_struct(*elem);
+    return &elem->data.tbl;
+}
+NK_LIB void
+nk_free_table(struct nk_context *ctx, struct nk_table *tbl)
+{
+    union nk_page_data *pd = NK_CONTAINER_OF(tbl, union nk_page_data, tbl);
+    struct nk_page_element *pe = NK_CONTAINER_OF(pd, struct nk_page_element, data);
+    nk_free_page_element(ctx, pe);
+}
+NK_LIB void
+nk_push_table(struct nk_window *win, struct nk_table *tbl)
+{
+    if (!win->tables) {
+        win->tables = tbl;
+        tbl->next = 0;
+        tbl->prev = 0;
+        tbl->size = 0;
+        win->table_count = 1;
+        return;
+    }
+    win->tables->prev = tbl;
+    tbl->next = win->tables;
+    tbl->prev = 0;
+    tbl->size = 0;
+    win->tables = tbl;
+    win->table_count++;
+}
+NK_LIB void
+nk_remove_table(struct nk_window *win, struct nk_table *tbl)
+{
+    if (win->tables == tbl)
+        win->tables = tbl->next;
+    if (tbl->next)
+        tbl->next->prev = tbl->prev;
+    if (tbl->prev)
+        tbl->prev->next = tbl->next;
+    tbl->next = 0;
+    tbl->prev = 0;
+}
+NK_LIB nk_uint*
+nk_add_value(struct nk_context *ctx, struct nk_window *win,
+            nk_hash name, nk_uint value)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(win);
+    if (!win || !ctx) return 0;
+    if (!win->tables || win->tables->size >= NK_VALUE_PAGE_CAPACITY) {
+        struct nk_table *tbl = nk_create_table(ctx);
+        NK_ASSERT(tbl);
+        if (!tbl) return 0;
+        nk_push_table(win, tbl);
+    }
+    win->tables->seq = win->seq;
+    win->tables->keys[win->tables->size] = name;
+    win->tables->values[win->tables->size] = value;
+    return &win->tables->values[win->tables->size++];
+}
+NK_LIB nk_uint*
+nk_find_value(struct nk_window *win, nk_hash name)
+{
+    struct nk_table *iter = win->tables;
+    while (iter) {
+        unsigned int i = 0;
+        unsigned int size = iter->size;
+        for (i = 0; i < size; ++i) {
+            if (iter->keys[i] == name) {
+                iter->seq = win->seq;
+                return &iter->values[i];
+            }
+        } size = NK_VALUE_PAGE_CAPACITY;
+        iter = iter->next;
+    }
+    return 0;
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              PANEL
+ *
+ * ===============================================================*/
+NK_LIB void*
+nk_create_panel(struct nk_context *ctx)
+{
+    struct nk_page_element *elem;
+    elem = nk_create_page_element(ctx);
+    if (!elem) return 0;
+    nk_zero_struct(*elem);
+    return &elem->data.pan;
+}
+NK_LIB void
+nk_free_panel(struct nk_context *ctx, struct nk_panel *pan)
+{
+    union nk_page_data *pd = NK_CONTAINER_OF(pan, union nk_page_data, pan);
+    struct nk_page_element *pe = NK_CONTAINER_OF(pd, struct nk_page_element, data);
+    nk_free_page_element(ctx, pe);
+}
+NK_LIB int
+nk_panel_has_header(nk_flags flags, const char *title)
+{
+    int active = 0;
+    active = (flags & (NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE));
+    active = active || (flags & NK_WINDOW_TITLE);
+    active = active && !(flags & NK_WINDOW_HIDDEN) && title;
+    return active;
+}
+NK_LIB struct nk_vec2
+nk_panel_get_padding(const struct nk_style *style, enum nk_panel_type type)
+{
+    switch (type) {
+    default:
+    case NK_PANEL_WINDOW: return style->window.padding;
+    case NK_PANEL_GROUP: return style->window.group_padding;
+    case NK_PANEL_POPUP: return style->window.popup_padding;
+    case NK_PANEL_CONTEXTUAL: return style->window.contextual_padding;
+    case NK_PANEL_COMBO: return style->window.combo_padding;
+    case NK_PANEL_MENU: return style->window.menu_padding;
+    case NK_PANEL_TOOLTIP: return style->window.menu_padding;}
+}
+NK_LIB float
+nk_panel_get_border(const struct nk_style *style, nk_flags flags,
+    enum nk_panel_type type)
+{
+    if (flags & NK_WINDOW_BORDER) {
+        switch (type) {
+        default:
+        case NK_PANEL_WINDOW: return style->window.border;
+        case NK_PANEL_GROUP: return style->window.group_border;
+        case NK_PANEL_POPUP: return style->window.popup_border;
+        case NK_PANEL_CONTEXTUAL: return style->window.contextual_border;
+        case NK_PANEL_COMBO: return style->window.combo_border;
+        case NK_PANEL_MENU: return style->window.menu_border;
+        case NK_PANEL_TOOLTIP: return style->window.menu_border;
+    }} else return 0;
+}
+NK_LIB struct nk_color
+nk_panel_get_border_color(const struct nk_style *style, enum nk_panel_type type)
+{
+    switch (type) {
+    default:
+    case NK_PANEL_WINDOW: return style->window.border_color;
+    case NK_PANEL_GROUP: return style->window.group_border_color;
+    case NK_PANEL_POPUP: return style->window.popup_border_color;
+    case NK_PANEL_CONTEXTUAL: return style->window.contextual_border_color;
+    case NK_PANEL_COMBO: return style->window.combo_border_color;
+    case NK_PANEL_MENU: return style->window.menu_border_color;
+    case NK_PANEL_TOOLTIP: return style->window.menu_border_color;}
+}
+NK_LIB int
+nk_panel_is_sub(enum nk_panel_type type)
+{
+    return (type & NK_PANEL_SET_SUB)?1:0;
+}
+NK_LIB int
+nk_panel_is_nonblock(enum nk_panel_type type)
+{
+    return (type & NK_PANEL_SET_NONBLOCK)?1:0;
+}
+NK_LIB int
+nk_panel_begin(struct nk_context *ctx, const char *title, enum nk_panel_type panel_type)
+{
+    struct nk_input *in;
+    struct nk_window *win;
+    struct nk_panel *layout;
+    struct nk_command_buffer *out;
+    const struct nk_style *style;
+    const struct nk_user_font *font;
+
+    struct nk_vec2 scrollbar_size;
+    struct nk_vec2 panel_padding;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout) return 0;
+    nk_zero(ctx->current->layout, sizeof(*ctx->current->layout));
+    if ((ctx->current->flags & NK_WINDOW_HIDDEN) || (ctx->current->flags & NK_WINDOW_CLOSED)) {
+        nk_zero(ctx->current->layout, sizeof(struct nk_panel));
+        ctx->current->layout->type = panel_type;
+        return 0;
+    }
+    /* pull state into local stack */
+    style = &ctx->style;
+    font = style->font;
+    win = ctx->current;
+    layout = win->layout;
+    out = &win->buffer;
+    in = (win->flags & NK_WINDOW_NO_INPUT) ? 0: &ctx->input;
+#ifdef NK_INCLUDE_COMMAND_USERDATA
+    win->buffer.userdata = ctx->userdata;
+#endif
+    /* pull style configuration into local stack */
+    scrollbar_size = style->window.scrollbar_size;
+    panel_padding = nk_panel_get_padding(style, panel_type);
+
+    /* window movement */
+    if ((win->flags & NK_WINDOW_MOVABLE) && !(win->flags & NK_WINDOW_ROM)) {
+        int left_mouse_down;
+        int left_mouse_clicked;
+        int left_mouse_click_in_cursor;
+
+        /* calculate draggable window space */
+        struct nk_rect header;
+        header.x = win->bounds.x;
+        header.y = win->bounds.y;
+        header.w = win->bounds.w;
+        if (nk_panel_has_header(win->flags, title)) {
+            header.h = font->height + 2.0f * style->window.header.padding.y;
+            header.h += 2.0f * style->window.header.label_padding.y;
+        } else header.h = panel_padding.y;
+
+        /* window movement by dragging */
+        left_mouse_down = in->mouse.buttons[NK_BUTTON_LEFT].down;
+        left_mouse_clicked = (int)in->mouse.buttons[NK_BUTTON_LEFT].clicked;
+        left_mouse_click_in_cursor = nk_input_has_mouse_click_down_in_rect(in,
+            NK_BUTTON_LEFT, header, nk_true);
+        if (left_mouse_down && left_mouse_click_in_cursor && !left_mouse_clicked) {
+            win->bounds.x = win->bounds.x + in->mouse.delta.x;
+            win->bounds.y = win->bounds.y + in->mouse.delta.y;
+            in->mouse.buttons[NK_BUTTON_LEFT].clicked_pos.x += in->mouse.delta.x;
+            in->mouse.buttons[NK_BUTTON_LEFT].clicked_pos.y += in->mouse.delta.y;
+            ctx->style.cursor_active = ctx->style.cursors[NK_CURSOR_MOVE];
+        }
+    }
+
+    /* setup panel */
+    layout->type = panel_type;
+    layout->flags = win->flags;
+    layout->bounds = win->bounds;
+    layout->bounds.x += panel_padding.x;
+    layout->bounds.w -= 2*panel_padding.x;
+    if (win->flags & NK_WINDOW_BORDER) {
+        layout->border = nk_panel_get_border(style, win->flags, panel_type);
+        layout->bounds = nk_shrink_rect(layout->bounds, layout->border);
+    } else layout->border = 0;
+    layout->at_y = layout->bounds.y;
+    layout->at_x = layout->bounds.x;
+    layout->max_x = 0;
+    layout->header_height = 0;
+    layout->footer_height = 0;
+    nk_layout_reset_min_row_height(ctx);
+    layout->row.index = 0;
+    layout->row.columns = 0;
+    layout->row.ratio = 0;
+    layout->row.item_width = 0;
+    layout->row.tree_depth = 0;
+    layout->row.height = panel_padding.y;
+    layout->has_scrolling = nk_true;
+    if (!(win->flags & NK_WINDOW_NO_SCROLLBAR))
+        layout->bounds.w -= scrollbar_size.x;
+    if (!nk_panel_is_nonblock(panel_type)) {
+        layout->footer_height = 0;
+        if (!(win->flags & NK_WINDOW_NO_SCROLLBAR) || win->flags & NK_WINDOW_SCALABLE)
+            layout->footer_height = scrollbar_size.y;
+        layout->bounds.h -= layout->footer_height;
+    }
+
+    /* panel header */
+    if (nk_panel_has_header(win->flags, title))
+    {
+        struct nk_text text;
+        struct nk_rect header;
+        const struct nk_style_item *background = 0;
+
+        /* calculate header bounds */
+        header.x = win->bounds.x;
+        header.y = win->bounds.y;
+        header.w = win->bounds.w;
+        header.h = font->height + 2.0f * style->window.header.padding.y;
+        header.h += (2.0f * style->window.header.label_padding.y);
+
+        /* shrink panel by header */
+        layout->header_height = header.h;
+        layout->bounds.y += header.h;
+        layout->bounds.h -= header.h;
+        layout->at_y += header.h;
+
+        /* select correct header background and text color */
+        if (ctx->active == win) {
+            background = &style->window.header.active;
+            text.text = style->window.header.label_active;
+        } else if (nk_input_is_mouse_hovering_rect(&ctx->input, header)) {
+            background = &style->window.header.hover;
+            text.text = style->window.header.label_hover;
+        } else {
+            background = &style->window.header.normal;
+            text.text = style->window.header.label_normal;
+        }
+
+        /* draw header background */
+        header.h += 1.0f;
+        if (background->type == NK_STYLE_ITEM_IMAGE) {
+            text.background = nk_rgba(0,0,0,0);
+            nk_draw_image(&win->buffer, header, &background->data.image, nk_white);
+        } else {
+            text.background = background->data.color;
+            nk_fill_rect(out, header, 0, background->data.color);
+        }
+
+        /* window close button */
+        {struct nk_rect button;
+        button.y = header.y + style->window.header.padding.y;
+        button.h = header.h - 2 * style->window.header.padding.y;
+        button.w = button.h;
+        if (win->flags & NK_WINDOW_CLOSABLE) {
+            nk_flags ws = 0;
+            if (style->window.header.align == NK_HEADER_RIGHT) {
+                button.x = (header.w + header.x) - (button.w + style->window.header.padding.x);
+                header.w -= button.w + style->window.header.spacing.x + style->window.header.padding.x;
+            } else {
+                button.x = header.x + style->window.header.padding.x;
+                header.x += button.w + style->window.header.spacing.x + style->window.header.padding.x;
+            }
+
+            if (nk_do_button_symbol(&ws, &win->buffer, button,
+                style->window.header.close_symbol, NK_BUTTON_DEFAULT,
+                &style->window.header.close_button, in, style->font) && !(win->flags & NK_WINDOW_ROM))
+            {
+                layout->flags |= NK_WINDOW_HIDDEN;
+                layout->flags &= (nk_flags)~NK_WINDOW_MINIMIZED;
+            }
+        }
+
+        /* window minimize button */
+        if (win->flags & NK_WINDOW_MINIMIZABLE) {
+            nk_flags ws = 0;
+            if (style->window.header.align == NK_HEADER_RIGHT) {
+                button.x = (header.w + header.x) - button.w;
+                if (!(win->flags & NK_WINDOW_CLOSABLE)) {
+                    button.x -= style->window.header.padding.x;
+                    header.w -= style->window.header.padding.x;
+                }
+                header.w -= button.w + style->window.header.spacing.x;
+            } else {
+                button.x = header.x;
+                header.x += button.w + style->window.header.spacing.x + style->window.header.padding.x;
+            }
+            if (nk_do_button_symbol(&ws, &win->buffer, button, (layout->flags & NK_WINDOW_MINIMIZED)?
+                style->window.header.maximize_symbol: style->window.header.minimize_symbol,
+                NK_BUTTON_DEFAULT, &style->window.header.minimize_button, in, style->font) && !(win->flags & NK_WINDOW_ROM))
+                layout->flags = (layout->flags & NK_WINDOW_MINIMIZED) ?
+                    layout->flags & (nk_flags)~NK_WINDOW_MINIMIZED:
+                    layout->flags | NK_WINDOW_MINIMIZED;
+        }}
+
+        {/* window header title */
+        int text_len = nk_strlen(title);
+        struct nk_rect label = {0,0,0,0};
+        float t = font->width(font->userdata, font->height, title, text_len);
+        text.padding = nk_vec2(0,0);
+
+        label.x = header.x + style->window.header.padding.x;
+        label.x += style->window.header.label_padding.x;
+        label.y = header.y + style->window.header.label_padding.y;
+        label.h = font->height + 2 * style->window.header.label_padding.y;
+        label.w = t + 2 * style->window.header.spacing.x;
+        label.w = NK_CLAMP(0, label.w, header.x + header.w - label.x);
+        nk_widget_text(out, label,(const char*)title, text_len, &text, NK_TEXT_LEFT, font);}
+    }
+
+    /* draw window background */
+    if (!(layout->flags & NK_WINDOW_MINIMIZED) && !(layout->flags & NK_WINDOW_DYNAMIC)) {
+        struct nk_rect body;
+        body.x = win->bounds.x;
+        body.w = win->bounds.w;
+        body.y = (win->bounds.y + layout->header_height);
+        body.h = (win->bounds.h - layout->header_height);
+        if (style->window.fixed_background.type == NK_STYLE_ITEM_IMAGE)
+            nk_draw_image(out, body, &style->window.fixed_background.data.image, nk_white);
+        else nk_fill_rect(out, body, 0, style->window.fixed_background.data.color);
+    }
+
+    /* set clipping rectangle */
+    {struct nk_rect clip;
+    layout->clip = layout->bounds;
+    nk_unify(&clip, &win->buffer.clip, layout->clip.x, layout->clip.y,
+        layout->clip.x + layout->clip.w, layout->clip.y + layout->clip.h);
+    nk_push_scissor(out, clip);
+    layout->clip = clip;}
+    return !(layout->flags & NK_WINDOW_HIDDEN) && !(layout->flags & NK_WINDOW_MINIMIZED);
+}
+NK_LIB void
+nk_panel_end(struct nk_context *ctx)
+{
+    struct nk_input *in;
+    struct nk_window *window;
+    struct nk_panel *layout;
+    const struct nk_style *style;
+    struct nk_command_buffer *out;
+
+    struct nk_vec2 scrollbar_size;
+    struct nk_vec2 panel_padding;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    window = ctx->current;
+    layout = window->layout;
+    style = &ctx->style;
+    out = &window->buffer;
+    in = (layout->flags & NK_WINDOW_ROM || layout->flags & NK_WINDOW_NO_INPUT) ? 0 :&ctx->input;
+    if (!nk_panel_is_sub(layout->type))
+        nk_push_scissor(out, nk_null_rect);
+
+    /* cache configuration data */
+    scrollbar_size = style->window.scrollbar_size;
+    panel_padding = nk_panel_get_padding(style, layout->type);
+
+    /* update the current cursor Y-position to point over the last added widget */
+    layout->at_y += layout->row.height;
+
+    /* dynamic panels */
+    if (layout->flags & NK_WINDOW_DYNAMIC && !(layout->flags & NK_WINDOW_MINIMIZED))
+    {
+        /* update panel height to fit dynamic growth */
+        struct nk_rect empty_space;
+        if (layout->at_y < (layout->bounds.y + layout->bounds.h))
+            layout->bounds.h = layout->at_y - layout->bounds.y;
+
+        /* fill top empty space */
+        empty_space.x = window->bounds.x;
+        empty_space.y = layout->bounds.y;
+        empty_space.h = panel_padding.y;
+        empty_space.w = window->bounds.w;
+        nk_fill_rect(out, empty_space, 0, style->window.background);
+
+        /* fill left empty space */
+        empty_space.x = window->bounds.x;
+        empty_space.y = layout->bounds.y;
+        empty_space.w = panel_padding.x + layout->border;
+        empty_space.h = layout->bounds.h;
+        nk_fill_rect(out, empty_space, 0, style->window.background);
+
+        /* fill right empty space */
+        empty_space.x = layout->bounds.x + layout->bounds.w;
+        empty_space.y = layout->bounds.y;
+        empty_space.w = panel_padding.x + layout->border;
+        empty_space.h = layout->bounds.h;
+        if (*layout->offset_y == 0 && !(layout->flags & NK_WINDOW_NO_SCROLLBAR))
+            empty_space.w += scrollbar_size.x;
+        nk_fill_rect(out, empty_space, 0, style->window.background);
+
+        /* fill bottom empty space */
+        if (layout->footer_height > 0) {
+            empty_space.x = window->bounds.x;
+            empty_space.y = layout->bounds.y + layout->bounds.h;
+            empty_space.w = window->bounds.w;
+            empty_space.h = layout->footer_height;
+            nk_fill_rect(out, empty_space, 0, style->window.background);
+        }
+    }
+
+    /* scrollbars */
+    if (!(layout->flags & NK_WINDOW_NO_SCROLLBAR) &&
+        !(layout->flags & NK_WINDOW_MINIMIZED) &&
+        window->scrollbar_hiding_timer < NK_SCROLLBAR_HIDING_TIMEOUT)
+    {
+        struct nk_rect scroll;
+        int scroll_has_scrolling;
+        float scroll_target;
+        float scroll_offset;
+        float scroll_step;
+        float scroll_inc;
+
+        /* mouse wheel scrolling */
+        if (nk_panel_is_sub(layout->type))
+        {
+            /* sub-window mouse wheel scrolling */
+            struct nk_window *root_window = window;
+            struct nk_panel *root_panel = window->layout;
+            while (root_panel->parent)
+                root_panel = root_panel->parent;
+            while (root_window->parent)
+                root_window = root_window->parent;
+
+            /* only allow scrolling if parent window is active */
+            scroll_has_scrolling = 0;
+            if ((root_window == ctx->active) && layout->has_scrolling) {
+                /* and panel is being hovered and inside clip rect*/
+                if (nk_input_is_mouse_hovering_rect(in, layout->bounds) &&
+                    NK_INTERSECT(layout->bounds.x, layout->bounds.y, layout->bounds.w, layout->bounds.h,
+                        root_panel->clip.x, root_panel->clip.y, root_panel->clip.w, root_panel->clip.h))
+                {
+                    /* deactivate all parent scrolling */
+                    root_panel = window->layout;
+                    while (root_panel->parent) {
+                        root_panel->has_scrolling = nk_false;
+                        root_panel = root_panel->parent;
+                    }
+                    root_panel->has_scrolling = nk_false;
+                    scroll_has_scrolling = nk_true;
+                }
+            }
+        } else if (!nk_panel_is_sub(layout->type)) {
+            /* window mouse wheel scrolling */
+            scroll_has_scrolling = (window == ctx->active) && layout->has_scrolling;
+            if (in && (in->mouse.scroll_delta.y > 0 || in->mouse.scroll_delta.x > 0) && scroll_has_scrolling)
+                window->scrolled = nk_true;
+            else window->scrolled = nk_false;
+        } else scroll_has_scrolling = nk_false;
+
+        {
+            /* vertical scrollbar */
+            nk_flags state = 0;
+            scroll.x = layout->bounds.x + layout->bounds.w + panel_padding.x;
+            scroll.y = layout->bounds.y;
+            scroll.w = scrollbar_size.x;
+            scroll.h = layout->bounds.h;
+
+            scroll_offset = (float)*layout->offset_y;
+            scroll_step = scroll.h * 0.10f;
+            scroll_inc = scroll.h * 0.01f;
+            scroll_target = (float)(int)(layout->at_y - scroll.y);
+            scroll_offset = nk_do_scrollbarv(&state, out, scroll, scroll_has_scrolling,
+                scroll_offset, scroll_target, scroll_step, scroll_inc,
+                &ctx->style.scrollv, in, style->font);
+            *layout->offset_y = (nk_uint)scroll_offset;
+            if (in && scroll_has_scrolling)
+                in->mouse.scroll_delta.y = 0;
+        }
+        {
+            /* horizontal scrollbar */
+            nk_flags state = 0;
+            scroll.x = layout->bounds.x;
+            scroll.y = layout->bounds.y + layout->bounds.h;
+            scroll.w = layout->bounds.w;
+            scroll.h = scrollbar_size.y;
+
+            scroll_offset = (float)*layout->offset_x;
+            scroll_target = (float)(int)(layout->max_x - scroll.x);
+            scroll_step = layout->max_x * 0.05f;
+            scroll_inc = layout->max_x * 0.005f;
+            scroll_offset = nk_do_scrollbarh(&state, out, scroll, scroll_has_scrolling,
+                scroll_offset, scroll_target, scroll_step, scroll_inc,
+                &ctx->style.scrollh, in, style->font);
+            *layout->offset_x = (nk_uint)scroll_offset;
+        }
+    }
+
+    /* hide scroll if no user input */
+    if (window->flags & NK_WINDOW_SCROLL_AUTO_HIDE) {
+        int has_input = ctx->input.mouse.delta.x != 0 || ctx->input.mouse.delta.y != 0 || ctx->input.mouse.scroll_delta.y != 0;
+        int is_window_hovered = nk_window_is_hovered(ctx);
+        int any_item_active = (ctx->last_widget_state & NK_WIDGET_STATE_MODIFIED);
+        if ((!has_input && is_window_hovered) || (!is_window_hovered && !any_item_active))
+            window->scrollbar_hiding_timer += ctx->delta_time_seconds;
+        else window->scrollbar_hiding_timer = 0;
+    } else window->scrollbar_hiding_timer = 0;
+
+    /* window border */
+    if (layout->flags & NK_WINDOW_BORDER)
+    {
+        struct nk_color border_color = nk_panel_get_border_color(style, layout->type);
+        const float padding_y = (layout->flags & NK_WINDOW_MINIMIZED)
+            ? (style->window.border + window->bounds.y + layout->header_height)
+            : ((layout->flags & NK_WINDOW_DYNAMIC)
+                ? (layout->bounds.y + layout->bounds.h + layout->footer_height)
+                : (window->bounds.y + window->bounds.h));
+        struct nk_rect b = window->bounds;
+        b.h = padding_y - window->bounds.y;
+        nk_stroke_rect(out, b, 0, layout->border, border_color);
+    }
+
+    /* scaler */
+    if ((layout->flags & NK_WINDOW_SCALABLE) && in && !(layout->flags & NK_WINDOW_MINIMIZED))
+    {
+        /* calculate scaler bounds */
+        struct nk_rect scaler;
+        scaler.w = scrollbar_size.x;
+        scaler.h = scrollbar_size.y;
+        scaler.y = layout->bounds.y + layout->bounds.h;
+        if (layout->flags & NK_WINDOW_SCALE_LEFT)
+            scaler.x = layout->bounds.x - panel_padding.x * 0.5f;
+        else scaler.x = layout->bounds.x + layout->bounds.w + panel_padding.x;
+        if (layout->flags & NK_WINDOW_NO_SCROLLBAR)
+            scaler.x -= scaler.w;
+
+        /* draw scaler */
+        {const struct nk_style_item *item = &style->window.scaler;
+        if (item->type == NK_STYLE_ITEM_IMAGE)
+            nk_draw_image(out, scaler, &item->data.image, nk_white);
+        else {
+            if (layout->flags & NK_WINDOW_SCALE_LEFT) {
+                nk_fill_triangle(out, scaler.x, scaler.y, scaler.x,
+                    scaler.y + scaler.h, scaler.x + scaler.w,
+                    scaler.y + scaler.h, item->data.color);
+            } else {
+                nk_fill_triangle(out, scaler.x + scaler.w, scaler.y, scaler.x + scaler.w,
+                    scaler.y + scaler.h, scaler.x, scaler.y + scaler.h, item->data.color);
+            }
+        }}
+
+        /* do window scaling */
+        if (!(window->flags & NK_WINDOW_ROM)) {
+            struct nk_vec2 window_size = style->window.min_size;
+            int left_mouse_down = in->mouse.buttons[NK_BUTTON_LEFT].down;
+            int left_mouse_click_in_scaler = nk_input_has_mouse_click_down_in_rect(in,
+                    NK_BUTTON_LEFT, scaler, nk_true);
+
+            if (left_mouse_down && left_mouse_click_in_scaler) {
+                float delta_x = in->mouse.delta.x;
+                if (layout->flags & NK_WINDOW_SCALE_LEFT) {
+                    delta_x = -delta_x;
+                    window->bounds.x += in->mouse.delta.x;
+                }
+                /* dragging in x-direction  */
+                if (window->bounds.w + delta_x >= window_size.x) {
+                    if ((delta_x < 0) || (delta_x > 0 && in->mouse.pos.x >= scaler.x)) {
+                        window->bounds.w = window->bounds.w + delta_x;
+                        scaler.x += in->mouse.delta.x;
+                    }
+                }
+                /* dragging in y-direction (only possible if static window) */
+                if (!(layout->flags & NK_WINDOW_DYNAMIC)) {
+                    if (window_size.y < window->bounds.h + in->mouse.delta.y) {
+                        if ((in->mouse.delta.y < 0) || (in->mouse.delta.y > 0 && in->mouse.pos.y >= scaler.y)) {
+                            window->bounds.h = window->bounds.h + in->mouse.delta.y;
+                            scaler.y += in->mouse.delta.y;
+                        }
+                    }
+                }
+                ctx->style.cursor_active = ctx->style.cursors[NK_CURSOR_RESIZE_TOP_RIGHT_DOWN_LEFT];
+                in->mouse.buttons[NK_BUTTON_LEFT].clicked_pos.x = scaler.x + scaler.w/2.0f;
+                in->mouse.buttons[NK_BUTTON_LEFT].clicked_pos.y = scaler.y + scaler.h/2.0f;
+            }
+        }
+    }
+    if (!nk_panel_is_sub(layout->type)) {
+        /* window is hidden so clear command buffer  */
+        if (layout->flags & NK_WINDOW_HIDDEN)
+            nk_command_buffer_reset(&window->buffer);
+        /* window is visible and not tab */
+        else nk_finish(ctx, window);
+    }
+
+    /* NK_WINDOW_REMOVE_ROM flag was set so remove NK_WINDOW_ROM */
+    if (layout->flags & NK_WINDOW_REMOVE_ROM) {
+        layout->flags &= ~(nk_flags)NK_WINDOW_ROM;
+        layout->flags &= ~(nk_flags)NK_WINDOW_REMOVE_ROM;
+    }
+    window->flags = layout->flags;
+
+    /* property garbage collector */
+    if (window->property.active && window->property.old != window->property.seq &&
+        window->property.active == window->property.prev) {
+        nk_zero(&window->property, sizeof(window->property));
+    } else {
+        window->property.old = window->property.seq;
+        window->property.prev = window->property.active;
+        window->property.seq = 0;
+    }
+    /* edit garbage collector */
+    if (window->edit.active && window->edit.old != window->edit.seq &&
+       window->edit.active == window->edit.prev) {
+        nk_zero(&window->edit, sizeof(window->edit));
+    } else {
+        window->edit.old = window->edit.seq;
+        window->edit.prev = window->edit.active;
+        window->edit.seq = 0;
+    }
+    /* contextual garbage collector */
+    if (window->popup.active_con && window->popup.con_old != window->popup.con_count) {
+        window->popup.con_count = 0;
+        window->popup.con_old = 0;
+        window->popup.active_con = 0;
+    } else {
+        window->popup.con_old = window->popup.con_count;
+        window->popup.con_count = 0;
+    }
+    window->popup.combo_count = 0;
+    /* helper to make sure you have a 'nk_tree_push' for every 'nk_tree_pop' */
+    NK_ASSERT(!layout->row.tree_depth);
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              WINDOW
+ *
+ * ===============================================================*/
+NK_LIB void*
+nk_create_window(struct nk_context *ctx)
+{
+    struct nk_page_element *elem;
+    elem = nk_create_page_element(ctx);
+    if (!elem) return 0;
+    elem->data.win.seq = ctx->seq;
+    return &elem->data.win;
+}
+NK_LIB void
+nk_free_window(struct nk_context *ctx, struct nk_window *win)
+{
+    /* unlink windows from list */
+    struct nk_table *it = win->tables;
+    if (win->popup.win) {
+        nk_free_window(ctx, win->popup.win);
+        win->popup.win = 0;
+    }
+    win->next = 0;
+    win->prev = 0;
+
+    while (it) {
+        /*free window state tables */
+        struct nk_table *n = it->next;
+        nk_remove_table(win, it);
+        nk_free_table(ctx, it);
+        if (it == win->tables)
+            win->tables = n;
+        it = n;
+    }
+
+    /* link windows into freelist */
+    {union nk_page_data *pd = NK_CONTAINER_OF(win, union nk_page_data, win);
+    struct nk_page_element *pe = NK_CONTAINER_OF(pd, struct nk_page_element, data);
+    nk_free_page_element(ctx, pe);}
+}
+NK_LIB struct nk_window*
+nk_find_window(struct nk_context *ctx, nk_hash hash, const char *name)
+{
+    struct nk_window *iter;
+    iter = ctx->begin;
+    while (iter) {
+        NK_ASSERT(iter != iter->next);
+        if (iter->name == hash) {
+            int max_len = nk_strlen(iter->name_string);
+            if (!nk_stricmpn(iter->name_string, name, max_len))
+                return iter;
+        }
+        iter = iter->next;
+    }
+    return 0;
+}
+NK_LIB void
+nk_insert_window(struct nk_context *ctx, struct nk_window *win,
+    enum nk_window_insert_location loc)
+{
+    const struct nk_window *iter;
+    NK_ASSERT(ctx);
+    NK_ASSERT(win);
+    if (!win || !ctx) return;
+
+    iter = ctx->begin;
+    while (iter) {
+        NK_ASSERT(iter != iter->next);
+        NK_ASSERT(iter != win);
+        if (iter == win) return;
+        iter = iter->next;
+    }
+
+    if (!ctx->begin) {
+        win->next = 0;
+        win->prev = 0;
+        ctx->begin = win;
+        ctx->end = win;
+        ctx->count = 1;
+        return;
+    }
+    if (loc == NK_INSERT_BACK) {
+        struct nk_window *end;
+        end = ctx->end;
+        end->flags |= NK_WINDOW_ROM;
+        end->next = win;
+        win->prev = ctx->end;
+        win->next = 0;
+        ctx->end = win;
+        ctx->active = ctx->end;
+        ctx->end->flags &= ~(nk_flags)NK_WINDOW_ROM;
+    } else {
+        /*ctx->end->flags |= NK_WINDOW_ROM;*/
+        ctx->begin->prev = win;
+        win->next = ctx->begin;
+        win->prev = 0;
+        ctx->begin = win;
+        ctx->begin->flags &= ~(nk_flags)NK_WINDOW_ROM;
+    }
+    ctx->count++;
+}
+NK_LIB void
+nk_remove_window(struct nk_context *ctx, struct nk_window *win)
+{
+    if (win == ctx->begin || win == ctx->end) {
+        if (win == ctx->begin) {
+            ctx->begin = win->next;
+            if (win->next)
+                win->next->prev = 0;
+        }
+        if (win == ctx->end) {
+            ctx->end = win->prev;
+            if (win->prev)
+                win->prev->next = 0;
+        }
+    } else {
+        if (win->next)
+            win->next->prev = win->prev;
+        if (win->prev)
+            win->prev->next = win->next;
+    }
+    if (win == ctx->active || !ctx->active) {
+        ctx->active = ctx->end;
+        if (ctx->end)
+            ctx->end->flags &= ~(nk_flags)NK_WINDOW_ROM;
+    }
+    win->next = 0;
+    win->prev = 0;
+    ctx->count--;
+}
+NK_API int
+nk_begin(struct nk_context *ctx, const char *title,
+    struct nk_rect bounds, nk_flags flags)
+{
+    return nk_begin_titled(ctx, title, title, bounds, flags);
+}
+NK_API int
+nk_begin_titled(struct nk_context *ctx, const char *name, const char *title,
+    struct nk_rect bounds, nk_flags flags)
+{
+    struct nk_window *win;
+    struct nk_style *style;
+    nk_hash name_hash;
+    int name_len;
+    int ret = 0;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(name);
+    NK_ASSERT(title);
+    NK_ASSERT(ctx->style.font && ctx->style.font->width && "if this triggers you forgot to add a font");
+    NK_ASSERT(!ctx->current && "if this triggers you missed a `nk_end` call");
+    if (!ctx || ctx->current || !title || !name)
+        return 0;
+
+    /* find or create window */
+    style = &ctx->style;
+    name_len = (int)nk_strlen(name);
+    name_hash = nk_murmur_hash(name, (int)name_len, NK_WINDOW_TITLE);
+    win = nk_find_window(ctx, name_hash, name);
+    if (!win) {
+        /* create new window */
+        nk_size name_length = (nk_size)name_len;
+        win = (struct nk_window*)nk_create_window(ctx);
+        NK_ASSERT(win);
+        if (!win) return 0;
+
+        if (flags & NK_WINDOW_BACKGROUND)
+            nk_insert_window(ctx, win, NK_INSERT_FRONT);
+        else nk_insert_window(ctx, win, NK_INSERT_BACK);
+        nk_command_buffer_init(&win->buffer, &ctx->memory, NK_CLIPPING_ON);
+
+        win->flags = flags;
+        win->bounds = bounds;
+        win->name = name_hash;
+        name_length = NK_MIN(name_length, NK_WINDOW_MAX_NAME-1);
+        NK_MEMCPY(win->name_string, name, name_length);
+        win->name_string[name_length] = 0;
+        win->popup.win = 0;
+        if (!ctx->active)
+            ctx->active = win;
+    } else {
+        /* update window */
+        win->flags &= ~(nk_flags)(NK_WINDOW_PRIVATE-1);
+        win->flags |= flags;
+        if (!(win->flags & (NK_WINDOW_MOVABLE | NK_WINDOW_SCALABLE)))
+            win->bounds = bounds;
+        /* If this assert triggers you either:
+         *
+         * I.) Have more than one window with the same name or
+         * II.) You forgot to actually draw the window.
+         *      More specific you did not call `nk_clear` (nk_clear will be
+         *      automatically called for you if you are using one of the
+         *      provided demo backends). */
+        NK_ASSERT(win->seq != ctx->seq);
+        win->seq = ctx->seq;
+        if (!ctx->active && !(win->flags & NK_WINDOW_HIDDEN)) {
+            ctx->active = win;
+            ctx->end = win;
+        }
+    }
+    if (win->flags & NK_WINDOW_HIDDEN) {
+        ctx->current = win;
+        win->layout = 0;
+        return 0;
+    } else nk_start(ctx, win);
+
+    /* window overlapping */
+    if (!(win->flags & NK_WINDOW_HIDDEN) && !(win->flags & NK_WINDOW_NO_INPUT))
+    {
+        int inpanel, ishovered;
+        struct nk_window *iter = win;
+        float h = ctx->style.font->height + 2.0f * style->window.header.padding.y +
+            (2.0f * style->window.header.label_padding.y);
+        struct nk_rect win_bounds = (!(win->flags & NK_WINDOW_MINIMIZED))?
+            win->bounds: nk_rect(win->bounds.x, win->bounds.y, win->bounds.w, h);
+
+        /* activate window if hovered and no other window is overlapping this window */
+        inpanel = nk_input_has_mouse_click_down_in_rect(&ctx->input, NK_BUTTON_LEFT, win_bounds, nk_true);
+        inpanel = inpanel && ctx->input.mouse.buttons[NK_BUTTON_LEFT].clicked;
+        ishovered = nk_input_is_mouse_hovering_rect(&ctx->input, win_bounds);
+        if ((win != ctx->active) && ishovered && !ctx->input.mouse.buttons[NK_BUTTON_LEFT].down) {
+            iter = win->next;
+            while (iter) {
+                struct nk_rect iter_bounds = (!(iter->flags & NK_WINDOW_MINIMIZED))?
+                    iter->bounds: nk_rect(iter->bounds.x, iter->bounds.y, iter->bounds.w, h);
+                if (NK_INTERSECT(win_bounds.x, win_bounds.y, win_bounds.w, win_bounds.h,
+                    iter_bounds.x, iter_bounds.y, iter_bounds.w, iter_bounds.h) &&
+                    (!(iter->flags & NK_WINDOW_HIDDEN)))
+                    break;
+
+                if (iter->popup.win && iter->popup.active && !(iter->flags & NK_WINDOW_HIDDEN) &&
+                    NK_INTERSECT(win->bounds.x, win_bounds.y, win_bounds.w, win_bounds.h,
+                    iter->popup.win->bounds.x, iter->popup.win->bounds.y,
+                    iter->popup.win->bounds.w, iter->popup.win->bounds.h))
+                    break;
+                iter = iter->next;
+            }
+        }
+
+        /* activate window if clicked */
+        if (iter && inpanel && (win != ctx->end)) {
+            iter = win->next;
+            while (iter) {
+                /* try to find a panel with higher priority in the same position */
+                struct nk_rect iter_bounds = (!(iter->flags & NK_WINDOW_MINIMIZED))?
+                iter->bounds: nk_rect(iter->bounds.x, iter->bounds.y, iter->bounds.w, h);
+                if (NK_INBOX(ctx->input.mouse.pos.x, ctx->input.mouse.pos.y,
+                    iter_bounds.x, iter_bounds.y, iter_bounds.w, iter_bounds.h) &&
+                    !(iter->flags & NK_WINDOW_HIDDEN))
+                    break;
+                if (iter->popup.win && iter->popup.active && !(iter->flags & NK_WINDOW_HIDDEN) &&
+                    NK_INTERSECT(win_bounds.x, win_bounds.y, win_bounds.w, win_bounds.h,
+                    iter->popup.win->bounds.x, iter->popup.win->bounds.y,
+                    iter->popup.win->bounds.w, iter->popup.win->bounds.h))
+                    break;
+                iter = iter->next;
+            }
+        }
+        if (iter && !(win->flags & NK_WINDOW_ROM) && (win->flags & NK_WINDOW_BACKGROUND)) {
+            win->flags |= (nk_flags)NK_WINDOW_ROM;
+            iter->flags &= ~(nk_flags)NK_WINDOW_ROM;
+            ctx->active = iter;
+            if (!(iter->flags & NK_WINDOW_BACKGROUND)) {
+                /* current window is active in that position so transfer to top
+                 * at the highest priority in stack */
+                nk_remove_window(ctx, iter);
+                nk_insert_window(ctx, iter, NK_INSERT_BACK);
+            }
+        } else {
+            if (!iter && ctx->end != win) {
+                if (!(win->flags & NK_WINDOW_BACKGROUND)) {
+                    /* current window is active in that position so transfer to top
+                     * at the highest priority in stack */
+                    nk_remove_window(ctx, win);
+                    nk_insert_window(ctx, win, NK_INSERT_BACK);
+                }
+                win->flags &= ~(nk_flags)NK_WINDOW_ROM;
+                ctx->active = win;
+            }
+            if (ctx->end != win && !(win->flags & NK_WINDOW_BACKGROUND))
+                win->flags |= NK_WINDOW_ROM;
+        }
+    }
+    win->layout = (struct nk_panel*)nk_create_panel(ctx);
+    ctx->current = win;
+    ret = nk_panel_begin(ctx, title, NK_PANEL_WINDOW);
+    win->layout->offset_x = &win->scrollbar.x;
+    win->layout->offset_y = &win->scrollbar.y;
+    return ret;
+}
+NK_API void
+nk_end(struct nk_context *ctx)
+{
+    struct nk_panel *layout;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current && "if this triggers you forgot to call `nk_begin`");
+    if (!ctx || !ctx->current)
+        return;
+
+    layout = ctx->current->layout;
+    if (!layout || (layout->type == NK_PANEL_WINDOW && (ctx->current->flags & NK_WINDOW_HIDDEN))) {
+        ctx->current = 0;
+        return;
+    }
+    nk_panel_end(ctx);
+    nk_free_panel(ctx, ctx->current->layout);
+    ctx->current = 0;
+}
+NK_API struct nk_rect
+nk_window_get_bounds(const struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current) return nk_rect(0,0,0,0);
+    return ctx->current->bounds;
+}
+NK_API struct nk_vec2
+nk_window_get_position(const struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current) return nk_vec2(0,0);
+    return nk_vec2(ctx->current->bounds.x, ctx->current->bounds.y);
+}
+NK_API struct nk_vec2
+nk_window_get_size(const struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current) return nk_vec2(0,0);
+    return nk_vec2(ctx->current->bounds.w, ctx->current->bounds.h);
+}
+NK_API float
+nk_window_get_width(const struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current) return 0;
+    return ctx->current->bounds.w;
+}
+NK_API float
+nk_window_get_height(const struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current) return 0;
+    return ctx->current->bounds.h;
+}
+NK_API struct nk_rect
+nk_window_get_content_region(struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current) return nk_rect(0,0,0,0);
+    return ctx->current->layout->clip;
+}
+NK_API struct nk_vec2
+nk_window_get_content_region_min(struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current) return nk_vec2(0,0);
+    return nk_vec2(ctx->current->layout->clip.x, ctx->current->layout->clip.y);
+}
+NK_API struct nk_vec2
+nk_window_get_content_region_max(struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current) return nk_vec2(0,0);
+    return nk_vec2(ctx->current->layout->clip.x + ctx->current->layout->clip.w,
+        ctx->current->layout->clip.y + ctx->current->layout->clip.h);
+}
+NK_API struct nk_vec2
+nk_window_get_content_region_size(struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current) return nk_vec2(0,0);
+    return nk_vec2(ctx->current->layout->clip.w, ctx->current->layout->clip.h);
+}
+NK_API struct nk_command_buffer*
+nk_window_get_canvas(struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current) return 0;
+    return &ctx->current->buffer;
+}
+NK_API struct nk_panel*
+nk_window_get_panel(struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current) return 0;
+    return ctx->current->layout;
+}
+NK_API void
+nk_window_get_scroll(struct nk_context *ctx, nk_uint *offset_x, nk_uint *offset_y)
+{
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current)
+        return ;
+    win = ctx->current;
+    if (offset_x)
+      *offset_x = win->scrollbar.x;
+    if (offset_y)
+      *offset_y = win->scrollbar.y;
+}
+NK_API int
+nk_window_has_focus(const struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current) return 0;
+    return ctx->current == ctx->active;
+}
+NK_API int
+nk_window_is_hovered(struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current) return 0;
+    if(ctx->current->flags & NK_WINDOW_HIDDEN)
+        return 0;
+    return nk_input_is_mouse_hovering_rect(&ctx->input, ctx->current->bounds);
+}
+NK_API int
+nk_window_is_any_hovered(struct nk_context *ctx)
+{
+    struct nk_window *iter;
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+    iter = ctx->begin;
+    while (iter) {
+        /* check if window is being hovered */
+        if(!(iter->flags & NK_WINDOW_HIDDEN)) {
+            /* check if window popup is being hovered */
+            if (iter->popup.active && iter->popup.win && nk_input_is_mouse_hovering_rect(&ctx->input, iter->popup.win->bounds))
+                return 1;
+
+            if (iter->flags & NK_WINDOW_MINIMIZED) {
+                struct nk_rect header = iter->bounds;
+                header.h = ctx->style.font->height + 2 * ctx->style.window.header.padding.y;
+                if (nk_input_is_mouse_hovering_rect(&ctx->input, header))
+                    return 1;
+            } else if (nk_input_is_mouse_hovering_rect(&ctx->input, iter->bounds)) {
+                return 1;
+            }
+        }
+        iter = iter->next;
+    }
+    return 0;
+}
+NK_API int
+nk_item_is_any_active(struct nk_context *ctx)
+{
+    int any_hovered = nk_window_is_any_hovered(ctx);
+    int any_active = (ctx->last_widget_state & NK_WIDGET_STATE_MODIFIED);
+    return any_hovered || any_active;
+}
+NK_API int
+nk_window_is_collapsed(struct nk_context *ctx, const char *name)
+{
+    int title_len;
+    nk_hash title_hash;
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+
+    title_len = (int)nk_strlen(name);
+    title_hash = nk_murmur_hash(name, (int)title_len, NK_WINDOW_TITLE);
+    win = nk_find_window(ctx, title_hash, name);
+    if (!win) return 0;
+    return win->flags & NK_WINDOW_MINIMIZED;
+}
+NK_API int
+nk_window_is_closed(struct nk_context *ctx, const char *name)
+{
+    int title_len;
+    nk_hash title_hash;
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    if (!ctx) return 1;
+
+    title_len = (int)nk_strlen(name);
+    title_hash = nk_murmur_hash(name, (int)title_len, NK_WINDOW_TITLE);
+    win = nk_find_window(ctx, title_hash, name);
+    if (!win) return 1;
+    return (win->flags & NK_WINDOW_CLOSED);
+}
+NK_API int
+nk_window_is_hidden(struct nk_context *ctx, const char *name)
+{
+    int title_len;
+    nk_hash title_hash;
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    if (!ctx) return 1;
+
+    title_len = (int)nk_strlen(name);
+    title_hash = nk_murmur_hash(name, (int)title_len, NK_WINDOW_TITLE);
+    win = nk_find_window(ctx, title_hash, name);
+    if (!win) return 1;
+    return (win->flags & NK_WINDOW_HIDDEN);
+}
+NK_API int
+nk_window_is_active(struct nk_context *ctx, const char *name)
+{
+    int title_len;
+    nk_hash title_hash;
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+
+    title_len = (int)nk_strlen(name);
+    title_hash = nk_murmur_hash(name, (int)title_len, NK_WINDOW_TITLE);
+    win = nk_find_window(ctx, title_hash, name);
+    if (!win) return 0;
+    return win == ctx->active;
+}
+NK_API struct nk_window*
+nk_window_find(struct nk_context *ctx, const char *name)
+{
+    int title_len;
+    nk_hash title_hash;
+    title_len = (int)nk_strlen(name);
+    title_hash = nk_murmur_hash(name, (int)title_len, NK_WINDOW_TITLE);
+    return nk_find_window(ctx, title_hash, name);
+}
+NK_API void
+nk_window_close(struct nk_context *ctx, const char *name)
+{
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    win = nk_window_find(ctx, name);
+    if (!win) return;
+    NK_ASSERT(ctx->current != win && "You cannot close a currently active window");
+    if (ctx->current == win) return;
+    win->flags |= NK_WINDOW_HIDDEN;
+    win->flags |= NK_WINDOW_CLOSED;
+}
+NK_API void
+nk_window_set_bounds(struct nk_context *ctx,
+    const char *name, struct nk_rect bounds)
+{
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    win = nk_window_find(ctx, name);
+    if (!win) return;
+    NK_ASSERT(ctx->current != win && "You cannot update a currently in procecss window");
+    win->bounds = bounds;
+}
+NK_API void
+nk_window_set_position(struct nk_context *ctx,
+    const char *name, struct nk_vec2 pos)
+{
+    struct nk_window *win = nk_window_find(ctx, name);
+    if (!win) return;
+    win->bounds.x = pos.x;
+    win->bounds.y = pos.y;
+}
+NK_API void
+nk_window_set_size(struct nk_context *ctx,
+    const char *name, struct nk_vec2 size)
+{
+    struct nk_window *win = nk_window_find(ctx, name);
+    if (!win) return;
+    win->bounds.w = size.x;
+    win->bounds.h = size.y;
+}
+NK_API void
+nk_window_set_scroll(struct nk_context *ctx, nk_uint offset_x, nk_uint offset_y)
+{
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current)
+        return;
+    win = ctx->current;
+    win->scrollbar.x = offset_x;
+    win->scrollbar.y = offset_y;
+}
+NK_API void
+nk_window_collapse(struct nk_context *ctx, const char *name,
+                    enum nk_collapse_states c)
+{
+    int title_len;
+    nk_hash title_hash;
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+
+    title_len = (int)nk_strlen(name);
+    title_hash = nk_murmur_hash(name, (int)title_len, NK_WINDOW_TITLE);
+    win = nk_find_window(ctx, title_hash, name);
+    if (!win) return;
+    if (c == NK_MINIMIZED)
+        win->flags |= NK_WINDOW_MINIMIZED;
+    else win->flags &= ~(nk_flags)NK_WINDOW_MINIMIZED;
+}
+NK_API void
+nk_window_collapse_if(struct nk_context *ctx, const char *name,
+    enum nk_collapse_states c, int cond)
+{
+    NK_ASSERT(ctx);
+    if (!ctx || !cond) return;
+    nk_window_collapse(ctx, name, c);
+}
+NK_API void
+nk_window_show(struct nk_context *ctx, const char *name, enum nk_show_states s)
+{
+    int title_len;
+    nk_hash title_hash;
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+
+    title_len = (int)nk_strlen(name);
+    title_hash = nk_murmur_hash(name, (int)title_len, NK_WINDOW_TITLE);
+    win = nk_find_window(ctx, title_hash, name);
+    if (!win) return;
+    if (s == NK_HIDDEN) {
+        win->flags |= NK_WINDOW_HIDDEN;
+    } else win->flags &= ~(nk_flags)NK_WINDOW_HIDDEN;
+}
+NK_API void
+nk_window_show_if(struct nk_context *ctx, const char *name,
+    enum nk_show_states s, int cond)
+{
+    NK_ASSERT(ctx);
+    if (!ctx || !cond) return;
+    nk_window_show(ctx, name, s);
+}
+
+NK_API void
+nk_window_set_focus(struct nk_context *ctx, const char *name)
+{
+    int title_len;
+    nk_hash title_hash;
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+
+    title_len = (int)nk_strlen(name);
+    title_hash = nk_murmur_hash(name, (int)title_len, NK_WINDOW_TITLE);
+    win = nk_find_window(ctx, title_hash, name);
+    if (win && ctx->end != win) {
+        nk_remove_window(ctx, win);
+        nk_insert_window(ctx, win, NK_INSERT_BACK);
+    }
+    ctx->active = win;
+}
+
+
+
+
+/* ===============================================================
+ *
+ *                              POPUP
+ *
+ * ===============================================================*/
+NK_API int
+nk_popup_begin(struct nk_context *ctx, enum nk_popup_type type,
+    const char *title, nk_flags flags, struct nk_rect rect)
+{
+    struct nk_window *popup;
+    struct nk_window *win;
+    struct nk_panel *panel;
+
+    int title_len;
+    nk_hash title_hash;
+    nk_size allocated;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(title);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    panel = win->layout;
+    NK_ASSERT(!(panel->type & NK_PANEL_SET_POPUP) && "popups are not allowed to have popups");
+    (void)panel;
+    title_len = (int)nk_strlen(title);
+    title_hash = nk_murmur_hash(title, (int)title_len, NK_PANEL_POPUP);
+
+    popup = win->popup.win;
+    if (!popup) {
+        popup = (struct nk_window*)nk_create_window(ctx);
+        popup->parent = win;
+        win->popup.win = popup;
+        win->popup.active = 0;
+        win->popup.type = NK_PANEL_POPUP;
+    }
+
+    /* make sure we have correct popup */
+    if (win->popup.name != title_hash) {
+        if (!win->popup.active) {
+            nk_zero(popup, sizeof(*popup));
+            win->popup.name = title_hash;
+            win->popup.active = 1;
+            win->popup.type = NK_PANEL_POPUP;
+        } else return 0;
+    }
+
+    /* popup position is local to window */
+    ctx->current = popup;
+    rect.x += win->layout->clip.x;
+    rect.y += win->layout->clip.y;
+
+    /* setup popup data */
+    popup->parent = win;
+    popup->bounds = rect;
+    popup->seq = ctx->seq;
+    popup->layout = (struct nk_panel*)nk_create_panel(ctx);
+    popup->flags = flags;
+    popup->flags |= NK_WINDOW_BORDER;
+    if (type == NK_POPUP_DYNAMIC)
+        popup->flags |= NK_WINDOW_DYNAMIC;
+
+    popup->buffer = win->buffer;
+    nk_start_popup(ctx, win);
+    allocated = ctx->memory.allocated;
+    nk_push_scissor(&popup->buffer, nk_null_rect);
+
+    if (nk_panel_begin(ctx, title, NK_PANEL_POPUP)) {
+        /* popup is running therefore invalidate parent panels */
+        struct nk_panel *root;
+        root = win->layout;
+        while (root) {
+            root->flags |= NK_WINDOW_ROM;
+            root->flags &= ~(nk_flags)NK_WINDOW_REMOVE_ROM;
+            root = root->parent;
+        }
+        win->popup.active = 1;
+        popup->layout->offset_x = &popup->scrollbar.x;
+        popup->layout->offset_y = &popup->scrollbar.y;
+        popup->layout->parent = win->layout;
+        return 1;
+    } else {
+        /* popup was closed/is invalid so cleanup */
+        struct nk_panel *root;
+        root = win->layout;
+        while (root) {
+            root->flags |= NK_WINDOW_REMOVE_ROM;
+            root = root->parent;
+        }
+        win->popup.buf.active = 0;
+        win->popup.active = 0;
+        ctx->memory.allocated = allocated;
+        ctx->current = win;
+        nk_free_panel(ctx, popup->layout);
+        popup->layout = 0;
+        return 0;
+    }
+}
+NK_LIB int
+nk_nonblock_begin(struct nk_context *ctx,
+    nk_flags flags, struct nk_rect body, struct nk_rect header,
+    enum nk_panel_type panel_type)
+{
+    struct nk_window *popup;
+    struct nk_window *win;
+    struct nk_panel *panel;
+    int is_active = nk_true;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    /* popups cannot have popups */
+    win = ctx->current;
+    panel = win->layout;
+    NK_ASSERT(!(panel->type & NK_PANEL_SET_POPUP));
+    (void)panel;
+    popup = win->popup.win;
+    if (!popup) {
+        /* create window for nonblocking popup */
+        popup = (struct nk_window*)nk_create_window(ctx);
+        popup->parent = win;
+        win->popup.win = popup;
+        win->popup.type = panel_type;
+        nk_command_buffer_init(&popup->buffer, &ctx->memory, NK_CLIPPING_ON);
+    } else {
+        /* close the popup if user pressed outside or in the header */
+        int pressed, in_body, in_header;
+#ifdef NK_BUTTON_TRIGGER_ON_RELEASE
+        pressed = nk_input_is_mouse_released(&ctx->input, NK_BUTTON_LEFT);
+#else
+        pressed = nk_input_is_mouse_pressed(&ctx->input, NK_BUTTON_LEFT);
+#endif
+        in_body = nk_input_is_mouse_hovering_rect(&ctx->input, body);
+        in_header = nk_input_is_mouse_hovering_rect(&ctx->input, header);
+        if (pressed && (!in_body || in_header))
+            is_active = nk_false;
+    }
+    win->popup.header = header;
+
+    if (!is_active) {
+        /* remove read only mode from all parent panels */
+        struct nk_panel *root = win->layout;
+        while (root) {
+            root->flags |= NK_WINDOW_REMOVE_ROM;
+            root = root->parent;
+        }
+        return is_active;
+    }
+    popup->bounds = body;
+    popup->parent = win;
+    popup->layout = (struct nk_panel*)nk_create_panel(ctx);
+    popup->flags = flags;
+    popup->flags |= NK_WINDOW_BORDER;
+    popup->flags |= NK_WINDOW_DYNAMIC;
+    popup->seq = ctx->seq;
+    win->popup.active = 1;
+    NK_ASSERT(popup->layout);
+
+    nk_start_popup(ctx, win);
+    popup->buffer = win->buffer;
+    nk_push_scissor(&popup->buffer, nk_null_rect);
+    ctx->current = popup;
+
+    nk_panel_begin(ctx, 0, panel_type);
+    win->buffer = popup->buffer;
+    popup->layout->parent = win->layout;
+    popup->layout->offset_x = &popup->scrollbar.x;
+    popup->layout->offset_y = &popup->scrollbar.y;
+
+    /* set read only mode to all parent panels */
+    {struct nk_panel *root;
+    root = win->layout;
+    while (root) {
+        root->flags |= NK_WINDOW_ROM;
+        root = root->parent;
+    }}
+    return is_active;
+}
+NK_API void
+nk_popup_close(struct nk_context *ctx)
+{
+    struct nk_window *popup;
+    NK_ASSERT(ctx);
+    if (!ctx || !ctx->current) return;
+
+    popup = ctx->current;
+    NK_ASSERT(popup->parent);
+    NK_ASSERT(popup->layout->type & NK_PANEL_SET_POPUP);
+    popup->flags |= NK_WINDOW_HIDDEN;
+}
+NK_API void
+nk_popup_end(struct nk_context *ctx)
+{
+    struct nk_window *win;
+    struct nk_window *popup;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    popup = ctx->current;
+    if (!popup->parent) return;
+    win = popup->parent;
+    if (popup->flags & NK_WINDOW_HIDDEN) {
+        struct nk_panel *root;
+        root = win->layout;
+        while (root) {
+            root->flags |= NK_WINDOW_REMOVE_ROM;
+            root = root->parent;
+        }
+        win->popup.active = 0;
+    }
+    nk_push_scissor(&popup->buffer, nk_null_rect);
+    nk_end(ctx);
+
+    win->buffer = popup->buffer;
+    nk_finish_popup(ctx, win);
+    ctx->current = win;
+    nk_push_scissor(&win->buffer, win->layout->clip);
+}
+NK_API void
+nk_popup_get_scroll(struct nk_context *ctx, nk_uint *offset_x, nk_uint *offset_y)
+{
+    struct nk_window *popup;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    popup = ctx->current;
+    if (offset_x)
+      *offset_x = popup->scrollbar.x;
+    if (offset_y)
+      *offset_y = popup->scrollbar.y;
+}
+NK_API void
+nk_popup_set_scroll(struct nk_context *ctx, nk_uint offset_x, nk_uint offset_y)
+{
+    struct nk_window *popup;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    popup = ctx->current;
+    popup->scrollbar.x = offset_x;
+    popup->scrollbar.y = offset_y;
+}
+
+
+
+
+/* ==============================================================
+ *
+ *                          CONTEXTUAL
+ *
+ * ===============================================================*/
+NK_API int
+nk_contextual_begin(struct nk_context *ctx, nk_flags flags, struct nk_vec2 size,
+    struct nk_rect trigger_bounds)
+{
+    struct nk_window *win;
+    struct nk_window *popup;
+    struct nk_rect body;
+
+    NK_STORAGE const struct nk_rect null_rect = {-1,-1,0,0};
+    int is_clicked = 0;
+    int is_open = 0;
+    int ret = 0;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    ++win->popup.con_count;
+    if (ctx->current != ctx->active)
+        return 0;
+
+    /* check if currently active contextual is active */
+    popup = win->popup.win;
+    is_open = (popup && win->popup.type == NK_PANEL_CONTEXTUAL);
+    is_clicked = nk_input_mouse_clicked(&ctx->input, NK_BUTTON_RIGHT, trigger_bounds);
+    if (win->popup.active_con && win->popup.con_count != win->popup.active_con)
+        return 0;
+    if (!is_open && win->popup.active_con)
+        win->popup.active_con = 0;
+    if ((!is_open && !is_clicked))
+        return 0;
+
+    /* calculate contextual position on click */
+    win->popup.active_con = win->popup.con_count;
+    if (is_clicked) {
+        body.x = ctx->input.mouse.pos.x;
+        body.y = ctx->input.mouse.pos.y;
+    } else {
+        body.x = popup->bounds.x;
+        body.y = popup->bounds.y;
+    }
+    body.w = size.x;
+    body.h = size.y;
+
+    /* start nonblocking contextual popup */
+    ret = nk_nonblock_begin(ctx, flags|NK_WINDOW_NO_SCROLLBAR, body,
+            null_rect, NK_PANEL_CONTEXTUAL);
+    if (ret) win->popup.type = NK_PANEL_CONTEXTUAL;
+    else {
+        win->popup.active_con = 0;
+        win->popup.type = NK_PANEL_NONE;
+        if (win->popup.win)
+            win->popup.win->flags = 0;
+    }
+    return ret;
+}
+NK_API int
+nk_contextual_item_text(struct nk_context *ctx, const char *text, int len,
+    nk_flags alignment)
+{
+    struct nk_window *win;
+    const struct nk_input *in;
+    const struct nk_style *style;
+
+    struct nk_rect bounds;
+    enum nk_widget_layout_states state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    style = &ctx->style;
+    state = nk_widget_fitting(&bounds, ctx, style->contextual_button.padding);
+    if (!state) return nk_false;
+
+    in = (state == NK_WIDGET_ROM || win->layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    if (nk_do_button_text(&ctx->last_widget_state, &win->buffer, bounds,
+        text, len, alignment, NK_BUTTON_DEFAULT, &style->contextual_button, in, style->font)) {
+        nk_contextual_close(ctx);
+        return nk_true;
+    }
+    return nk_false;
+}
+NK_API int
+nk_contextual_item_label(struct nk_context *ctx, const char *label, nk_flags align)
+{
+    return nk_contextual_item_text(ctx, label, nk_strlen(label), align);
+}
+NK_API int
+nk_contextual_item_image_text(struct nk_context *ctx, struct nk_image img,
+    const char *text, int len, nk_flags align)
+{
+    struct nk_window *win;
+    const struct nk_input *in;
+    const struct nk_style *style;
+
+    struct nk_rect bounds;
+    enum nk_widget_layout_states state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    style = &ctx->style;
+    state = nk_widget_fitting(&bounds, ctx, style->contextual_button.padding);
+    if (!state) return nk_false;
+
+    in = (state == NK_WIDGET_ROM || win->layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    if (nk_do_button_text_image(&ctx->last_widget_state, &win->buffer, bounds,
+        img, text, len, align, NK_BUTTON_DEFAULT, &style->contextual_button, style->font, in)){
+        nk_contextual_close(ctx);
+        return nk_true;
+    }
+    return nk_false;
+}
+NK_API int
+nk_contextual_item_image_label(struct nk_context *ctx, struct nk_image img,
+    const char *label, nk_flags align)
+{
+    return nk_contextual_item_image_text(ctx, img, label, nk_strlen(label), align);
+}
+NK_API int
+nk_contextual_item_symbol_text(struct nk_context *ctx, enum nk_symbol_type symbol,
+    const char *text, int len, nk_flags align)
+{
+    struct nk_window *win;
+    const struct nk_input *in;
+    const struct nk_style *style;
+
+    struct nk_rect bounds;
+    enum nk_widget_layout_states state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    style = &ctx->style;
+    state = nk_widget_fitting(&bounds, ctx, style->contextual_button.padding);
+    if (!state) return nk_false;
+
+    in = (state == NK_WIDGET_ROM || win->layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    if (nk_do_button_text_symbol(&ctx->last_widget_state, &win->buffer, bounds,
+        symbol, text, len, align, NK_BUTTON_DEFAULT, &style->contextual_button, style->font, in)) {
+        nk_contextual_close(ctx);
+        return nk_true;
+    }
+    return nk_false;
+}
+NK_API int
+nk_contextual_item_symbol_label(struct nk_context *ctx, enum nk_symbol_type symbol,
+    const char *text, nk_flags align)
+{
+    return nk_contextual_item_symbol_text(ctx, symbol, text, nk_strlen(text), align);
+}
+NK_API void
+nk_contextual_close(struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout) return;
+    nk_popup_close(ctx);
+}
+NK_API void
+nk_contextual_end(struct nk_context *ctx)
+{
+    struct nk_window *popup;
+    struct nk_panel *panel;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current) return;
+
+    popup = ctx->current;
+    panel = popup->layout;
+    NK_ASSERT(popup->parent);
+    NK_ASSERT(panel->type & NK_PANEL_SET_POPUP);
+    if (panel->flags & NK_WINDOW_DYNAMIC) {
+        /* Close behavior
+        This is a bit of a hack solution since we do not know before we end our popup
+        how big it will be. We therefore do not directly know when a
+        click outside the non-blocking popup must close it at that direct frame.
+        Instead it will be closed in the next frame.*/
+        struct nk_rect body = {0,0,0,0};
+        if (panel->at_y < (panel->bounds.y + panel->bounds.h)) {
+            struct nk_vec2 padding = nk_panel_get_padding(&ctx->style, panel->type);
+            body = panel->bounds;
+            body.y = (panel->at_y + panel->footer_height + panel->border + padding.y + panel->row.height);
+            body.h = (panel->bounds.y + panel->bounds.h) - body.y;
+        }
+        {int pressed = nk_input_is_mouse_pressed(&ctx->input, NK_BUTTON_LEFT);
+        int in_body = nk_input_is_mouse_hovering_rect(&ctx->input, body);
+        if (pressed && in_body)
+            popup->flags |= NK_WINDOW_HIDDEN;
+        }
+    }
+    if (popup->flags & NK_WINDOW_HIDDEN)
+        popup->seq = 0;
+    nk_popup_end(ctx);
+    return;
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              MENU
+ *
+ * ===============================================================*/
+NK_API void
+nk_menubar_begin(struct nk_context *ctx)
+{
+    struct nk_panel *layout;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    layout = ctx->current->layout;
+    NK_ASSERT(layout->at_y == layout->bounds.y);
+    /* if this assert triggers you allocated space between nk_begin and nk_menubar_begin.
+    If you want a menubar the first nuklear function after `nk_begin` has to be a
+    `nk_menubar_begin` call. Inside the menubar you then have to allocate space for
+    widgets (also supports multiple rows).
+    Example:
+        if (nk_begin(...)) {
+            nk_menubar_begin(...);
+                nk_layout_xxxx(...);
+                nk_button(...);
+                nk_layout_xxxx(...);
+                nk_button(...);
+            nk_menubar_end(...);
+        }
+        nk_end(...);
+    */
+    if (layout->flags & NK_WINDOW_HIDDEN || layout->flags & NK_WINDOW_MINIMIZED)
+        return;
+
+    layout->menu.x = layout->at_x;
+    layout->menu.y = layout->at_y + layout->row.height;
+    layout->menu.w = layout->bounds.w;
+    layout->menu.offset.x = *layout->offset_x;
+    layout->menu.offset.y = *layout->offset_y;
+    *layout->offset_y = 0;
+}
+NK_API void
+nk_menubar_end(struct nk_context *ctx)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    struct nk_command_buffer *out;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    out = &win->buffer;
+    layout = win->layout;
+    if (layout->flags & NK_WINDOW_HIDDEN || layout->flags & NK_WINDOW_MINIMIZED)
+        return;
+
+    layout->menu.h = layout->at_y - layout->menu.y;
+    layout->bounds.y += layout->menu.h + ctx->style.window.spacing.y + layout->row.height;
+    layout->bounds.h -= layout->menu.h + ctx->style.window.spacing.y + layout->row.height;
+
+    *layout->offset_x = layout->menu.offset.x;
+    *layout->offset_y = layout->menu.offset.y;
+    layout->at_y = layout->bounds.y - layout->row.height;
+
+    layout->clip.y = layout->bounds.y;
+    layout->clip.h = layout->bounds.h;
+    nk_push_scissor(out, layout->clip);
+}
+NK_INTERN int
+nk_menu_begin(struct nk_context *ctx, struct nk_window *win,
+    const char *id, int is_clicked, struct nk_rect header, struct nk_vec2 size)
+{
+    int is_open = 0;
+    int is_active = 0;
+    struct nk_rect body;
+    struct nk_window *popup;
+    nk_hash hash = nk_murmur_hash(id, (int)nk_strlen(id), NK_PANEL_MENU);
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    body.x = header.x;
+    body.w = size.x;
+    body.y = header.y + header.h;
+    body.h = size.y;
+
+    popup = win->popup.win;
+    is_open = popup ? nk_true : nk_false;
+    is_active = (popup && (win->popup.name == hash) && win->popup.type == NK_PANEL_MENU);
+    if ((is_clicked && is_open && !is_active) || (is_open && !is_active) ||
+        (!is_open && !is_active && !is_clicked)) return 0;
+    if (!nk_nonblock_begin(ctx, NK_WINDOW_NO_SCROLLBAR, body, header, NK_PANEL_MENU))
+        return 0;
+
+    win->popup.type = NK_PANEL_MENU;
+    win->popup.name = hash;
+    return 1;
+}
+NK_API int
+nk_menu_begin_text(struct nk_context *ctx, const char *title, int len,
+    nk_flags align, struct nk_vec2 size)
+{
+    struct nk_window *win;
+    const struct nk_input *in;
+    struct nk_rect header;
+    int is_clicked = nk_false;
+    nk_flags state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    state = nk_widget(&header, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || win->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    if (nk_do_button_text(&ctx->last_widget_state, &win->buffer, header,
+        title, len, align, NK_BUTTON_DEFAULT, &ctx->style.menu_button, in, ctx->style.font))
+        is_clicked = nk_true;
+    return nk_menu_begin(ctx, win, title, is_clicked, header, size);
+}
+NK_API int nk_menu_begin_label(struct nk_context *ctx,
+    const char *text, nk_flags align, struct nk_vec2 size)
+{
+    return nk_menu_begin_text(ctx, text, nk_strlen(text), align, size);
+}
+NK_API int
+nk_menu_begin_image(struct nk_context *ctx, const char *id, struct nk_image img,
+    struct nk_vec2 size)
+{
+    struct nk_window *win;
+    struct nk_rect header;
+    const struct nk_input *in;
+    int is_clicked = nk_false;
+    nk_flags state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    state = nk_widget(&header, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || win->layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    if (nk_do_button_image(&ctx->last_widget_state, &win->buffer, header,
+        img, NK_BUTTON_DEFAULT, &ctx->style.menu_button, in))
+        is_clicked = nk_true;
+    return nk_menu_begin(ctx, win, id, is_clicked, header, size);
+}
+NK_API int
+nk_menu_begin_symbol(struct nk_context *ctx, const char *id,
+    enum nk_symbol_type sym, struct nk_vec2 size)
+{
+    struct nk_window *win;
+    const struct nk_input *in;
+    struct nk_rect header;
+    int is_clicked = nk_false;
+    nk_flags state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    state = nk_widget(&header, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || win->layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    if (nk_do_button_symbol(&ctx->last_widget_state,  &win->buffer, header,
+        sym, NK_BUTTON_DEFAULT, &ctx->style.menu_button, in, ctx->style.font))
+        is_clicked = nk_true;
+    return nk_menu_begin(ctx, win, id, is_clicked, header, size);
+}
+NK_API int
+nk_menu_begin_image_text(struct nk_context *ctx, const char *title, int len,
+    nk_flags align, struct nk_image img, struct nk_vec2 size)
+{
+    struct nk_window *win;
+    struct nk_rect header;
+    const struct nk_input *in;
+    int is_clicked = nk_false;
+    nk_flags state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    state = nk_widget(&header, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || win->layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    if (nk_do_button_text_image(&ctx->last_widget_state, &win->buffer,
+        header, img, title, len, align, NK_BUTTON_DEFAULT, &ctx->style.menu_button,
+        ctx->style.font, in))
+        is_clicked = nk_true;
+    return nk_menu_begin(ctx, win, title, is_clicked, header, size);
+}
+NK_API int
+nk_menu_begin_image_label(struct nk_context *ctx,
+    const char *title, nk_flags align, struct nk_image img, struct nk_vec2 size)
+{
+    return nk_menu_begin_image_text(ctx, title, nk_strlen(title), align, img, size);
+}
+NK_API int
+nk_menu_begin_symbol_text(struct nk_context *ctx, const char *title, int len,
+    nk_flags align, enum nk_symbol_type sym, struct nk_vec2 size)
+{
+    struct nk_window *win;
+    struct nk_rect header;
+    const struct nk_input *in;
+    int is_clicked = nk_false;
+    nk_flags state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    state = nk_widget(&header, ctx);
+    if (!state) return 0;
+
+    in = (state == NK_WIDGET_ROM || win->layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    if (nk_do_button_text_symbol(&ctx->last_widget_state, &win->buffer,
+        header, sym, title, len, align, NK_BUTTON_DEFAULT, &ctx->style.menu_button,
+        ctx->style.font, in)) is_clicked = nk_true;
+    return nk_menu_begin(ctx, win, title, is_clicked, header, size);
+}
+NK_API int
+nk_menu_begin_symbol_label(struct nk_context *ctx,
+    const char *title, nk_flags align, enum nk_symbol_type sym, struct nk_vec2 size )
+{
+    return nk_menu_begin_symbol_text(ctx, title, nk_strlen(title), align,sym,size);
+}
+NK_API int
+nk_menu_item_text(struct nk_context *ctx, const char *title, int len, nk_flags align)
+{
+    return nk_contextual_item_text(ctx, title, len, align);
+}
+NK_API int
+nk_menu_item_label(struct nk_context *ctx, const char *label, nk_flags align)
+{
+    return nk_contextual_item_label(ctx, label, align);
+}
+NK_API int
+nk_menu_item_image_label(struct nk_context *ctx, struct nk_image img,
+    const char *label, nk_flags align)
+{
+    return nk_contextual_item_image_label(ctx, img, label, align);
+}
+NK_API int
+nk_menu_item_image_text(struct nk_context *ctx, struct nk_image img,
+    const char *text, int len, nk_flags align)
+{
+    return nk_contextual_item_image_text(ctx, img, text, len, align);
+}
+NK_API int nk_menu_item_symbol_text(struct nk_context *ctx, enum nk_symbol_type sym,
+    const char *text, int len, nk_flags align)
+{
+    return nk_contextual_item_symbol_text(ctx, sym, text, len, align);
+}
+NK_API int nk_menu_item_symbol_label(struct nk_context *ctx, enum nk_symbol_type sym,
+    const char *label, nk_flags align)
+{
+    return nk_contextual_item_symbol_label(ctx, sym, label, align);
+}
+NK_API void nk_menu_close(struct nk_context *ctx)
+{
+    nk_contextual_close(ctx);
+}
+NK_API void
+nk_menu_end(struct nk_context *ctx)
+{
+    nk_contextual_end(ctx);
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                          LAYOUT
+ *
+ * ===============================================================*/
+NK_API void
+nk_layout_set_min_row_height(struct nk_context *ctx, float height)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    layout->row.min_height = height;
+}
+NK_API void
+nk_layout_reset_min_row_height(struct nk_context *ctx)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    layout->row.min_height = ctx->style.font->height;
+    layout->row.min_height += ctx->style.text.padding.y*2;
+    layout->row.min_height += ctx->style.window.min_row_height_padding*2;
+}
+NK_LIB float
+nk_layout_row_calculate_usable_space(const struct nk_style *style, enum nk_panel_type type,
+    float total_space, int columns)
+{
+    float panel_padding;
+    float panel_spacing;
+    float panel_space;
+
+    struct nk_vec2 spacing;
+    struct nk_vec2 padding;
+
+    spacing = style->window.spacing;
+    padding = nk_panel_get_padding(style, type);
+
+    /* calculate the usable panel space */
+    panel_padding = 2 * padding.x;
+    panel_spacing = (float)NK_MAX(columns - 1, 0) * spacing.x;
+    panel_space  = total_space - panel_padding - panel_spacing;
+    return panel_space;
+}
+NK_LIB void
+nk_panel_layout(const struct nk_context *ctx, struct nk_window *win,
+    float height, int cols)
+{
+    struct nk_panel *layout;
+    const struct nk_style *style;
+    struct nk_command_buffer *out;
+
+    struct nk_vec2 item_spacing;
+    struct nk_color color;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    /* prefetch some configuration data */
+    layout = win->layout;
+    style = &ctx->style;
+    out = &win->buffer;
+    color = style->window.background;
+    item_spacing = style->window.spacing;
+
+    /*  if one of these triggers you forgot to add an `if` condition around either
+        a window, group, popup, combobox or contextual menu `begin` and `end` block.
+        Example:
+            if (nk_begin(...) {...} nk_end(...); or
+            if (nk_group_begin(...) { nk_group_end(...);} */
+    NK_ASSERT(!(layout->flags & NK_WINDOW_MINIMIZED));
+    NK_ASSERT(!(layout->flags & NK_WINDOW_HIDDEN));
+    NK_ASSERT(!(layout->flags & NK_WINDOW_CLOSED));
+
+    /* update the current row and set the current row layout */
+    layout->row.index = 0;
+    layout->at_y += layout->row.height;
+    layout->row.columns = cols;
+    if (height == 0.0f)
+        layout->row.height = NK_MAX(height, layout->row.min_height) + item_spacing.y;
+    else layout->row.height = height + item_spacing.y;
+
+    layout->row.item_offset = 0;
+    if (layout->flags & NK_WINDOW_DYNAMIC) {
+        /* draw background for dynamic panels */
+        struct nk_rect background;
+        background.x = win->bounds.x;
+        background.w = win->bounds.w;
+        background.y = layout->at_y - 1.0f;
+        background.h = layout->row.height + 1.0f;
+        nk_fill_rect(out, background, 0, color);
+    }
+}
+NK_LIB void
+nk_row_layout(struct nk_context *ctx, enum nk_layout_format fmt,
+    float height, int cols, int width)
+{
+    /* update the current row and set the current row layout */
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    nk_panel_layout(ctx, win, height, cols);
+    if (fmt == NK_DYNAMIC)
+        win->layout->row.type = NK_LAYOUT_DYNAMIC_FIXED;
+    else win->layout->row.type = NK_LAYOUT_STATIC_FIXED;
+
+    win->layout->row.ratio = 0;
+    win->layout->row.filled = 0;
+    win->layout->row.item_offset = 0;
+    win->layout->row.item_width = (float)width;
+}
+NK_API float
+nk_layout_ratio_from_pixel(struct nk_context *ctx, float pixel_width)
+{
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    NK_ASSERT(pixel_width);
+    if (!ctx || !ctx->current || !ctx->current->layout) return 0;
+    win = ctx->current;
+    return NK_CLAMP(0.0f, pixel_width/win->bounds.x, 1.0f);
+}
+NK_API void
+nk_layout_row_dynamic(struct nk_context *ctx, float height, int cols)
+{
+    nk_row_layout(ctx, NK_DYNAMIC, height, cols, 0);
+}
+NK_API void
+nk_layout_row_static(struct nk_context *ctx, float height, int item_width, int cols)
+{
+    nk_row_layout(ctx, NK_STATIC, height, cols, item_width);
+}
+NK_API void
+nk_layout_row_begin(struct nk_context *ctx, enum nk_layout_format fmt,
+    float row_height, int cols)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    nk_panel_layout(ctx, win, row_height, cols);
+    if (fmt == NK_DYNAMIC)
+        layout->row.type = NK_LAYOUT_DYNAMIC_ROW;
+    else layout->row.type = NK_LAYOUT_STATIC_ROW;
+
+    layout->row.ratio = 0;
+    layout->row.filled = 0;
+    layout->row.item_width = 0;
+    layout->row.item_offset = 0;
+    layout->row.columns = cols;
+}
+NK_API void
+nk_layout_row_push(struct nk_context *ctx, float ratio_or_width)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    NK_ASSERT(layout->row.type == NK_LAYOUT_STATIC_ROW || layout->row.type == NK_LAYOUT_DYNAMIC_ROW);
+    if (layout->row.type != NK_LAYOUT_STATIC_ROW && layout->row.type != NK_LAYOUT_DYNAMIC_ROW)
+        return;
+
+    if (layout->row.type == NK_LAYOUT_DYNAMIC_ROW) {
+        float ratio = ratio_or_width;
+        if ((ratio + layout->row.filled) > 1.0f) return;
+        if (ratio > 0.0f)
+            layout->row.item_width = NK_SATURATE(ratio);
+        else layout->row.item_width = 1.0f - layout->row.filled;
+    } else layout->row.item_width = ratio_or_width;
+}
+NK_API void
+nk_layout_row_end(struct nk_context *ctx)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    NK_ASSERT(layout->row.type == NK_LAYOUT_STATIC_ROW || layout->row.type == NK_LAYOUT_DYNAMIC_ROW);
+    if (layout->row.type != NK_LAYOUT_STATIC_ROW && layout->row.type != NK_LAYOUT_DYNAMIC_ROW)
+        return;
+    layout->row.item_width = 0;
+    layout->row.item_offset = 0;
+}
+NK_API void
+nk_layout_row(struct nk_context *ctx, enum nk_layout_format fmt,
+    float height, int cols, const float *ratio)
+{
+    int i;
+    int n_undef = 0;
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    nk_panel_layout(ctx, win, height, cols);
+    if (fmt == NK_DYNAMIC) {
+        /* calculate width of undefined widget ratios */
+        float r = 0;
+        layout->row.ratio = ratio;
+        for (i = 0; i < cols; ++i) {
+            if (ratio[i] < 0.0f)
+                n_undef++;
+            else r += ratio[i];
+        }
+        r = NK_SATURATE(1.0f - r);
+        layout->row.type = NK_LAYOUT_DYNAMIC;
+        layout->row.item_width = (r > 0 && n_undef > 0) ? (r / (float)n_undef):0;
+    } else {
+        layout->row.ratio = ratio;
+        layout->row.type = NK_LAYOUT_STATIC;
+        layout->row.item_width = 0;
+        layout->row.item_offset = 0;
+    }
+    layout->row.item_offset = 0;
+    layout->row.filled = 0;
+}
+NK_API void
+nk_layout_row_template_begin(struct nk_context *ctx, float height)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    nk_panel_layout(ctx, win, height, 1);
+    layout->row.type = NK_LAYOUT_TEMPLATE;
+    layout->row.columns = 0;
+    layout->row.ratio = 0;
+    layout->row.item_width = 0;
+    layout->row.item_height = 0;
+    layout->row.item_offset = 0;
+    layout->row.filled = 0;
+    layout->row.item.x = 0;
+    layout->row.item.y = 0;
+    layout->row.item.w = 0;
+    layout->row.item.h = 0;
+}
+NK_API void
+nk_layout_row_template_push_dynamic(struct nk_context *ctx)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    NK_ASSERT(layout->row.type == NK_LAYOUT_TEMPLATE);
+    NK_ASSERT(layout->row.columns < NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS);
+    if (layout->row.type != NK_LAYOUT_TEMPLATE) return;
+    if (layout->row.columns >= NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS) return;
+    layout->row.templates[layout->row.columns++] = -1.0f;
+}
+NK_API void
+nk_layout_row_template_push_variable(struct nk_context *ctx, float min_width)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    NK_ASSERT(layout->row.type == NK_LAYOUT_TEMPLATE);
+    NK_ASSERT(layout->row.columns < NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS);
+    if (layout->row.type != NK_LAYOUT_TEMPLATE) return;
+    if (layout->row.columns >= NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS) return;
+    layout->row.templates[layout->row.columns++] = -min_width;
+}
+NK_API void
+nk_layout_row_template_push_static(struct nk_context *ctx, float width)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    NK_ASSERT(layout->row.type == NK_LAYOUT_TEMPLATE);
+    NK_ASSERT(layout->row.columns < NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS);
+    if (layout->row.type != NK_LAYOUT_TEMPLATE) return;
+    if (layout->row.columns >= NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS) return;
+    layout->row.templates[layout->row.columns++] = width;
+}
+NK_API void
+nk_layout_row_template_end(struct nk_context *ctx)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    int i = 0;
+    int variable_count = 0;
+    int min_variable_count = 0;
+    float min_fixed_width = 0.0f;
+    float total_fixed_width = 0.0f;
+    float max_variable_width = 0.0f;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    NK_ASSERT(layout->row.type == NK_LAYOUT_TEMPLATE);
+    if (layout->row.type != NK_LAYOUT_TEMPLATE) return;
+    for (i = 0; i < layout->row.columns; ++i) {
+        float width = layout->row.templates[i];
+        if (width >= 0.0f) {
+            total_fixed_width += width;
+            min_fixed_width += width;
+        } else if (width < -1.0f) {
+            width = -width;
+            total_fixed_width += width;
+            max_variable_width = NK_MAX(max_variable_width, width);
+            variable_count++;
+        } else {
+            min_variable_count++;
+            variable_count++;
+        }
+    }
+    if (variable_count) {
+        float space = nk_layout_row_calculate_usable_space(&ctx->style, layout->type,
+                            layout->bounds.w, layout->row.columns);
+        float var_width = (NK_MAX(space-min_fixed_width,0.0f)) / (float)variable_count;
+        int enough_space = var_width >= max_variable_width;
+        if (!enough_space)
+            var_width = (NK_MAX(space-total_fixed_width,0)) / (float)min_variable_count;
+        for (i = 0; i < layout->row.columns; ++i) {
+            float *width = &layout->row.templates[i];
+            *width = (*width >= 0.0f)? *width: (*width < -1.0f && !enough_space)? -(*width): var_width;
+        }
+    }
+}
+NK_API void
+nk_layout_space_begin(struct nk_context *ctx, enum nk_layout_format fmt,
+    float height, int widget_count)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    nk_panel_layout(ctx, win, height, widget_count);
+    if (fmt == NK_STATIC)
+        layout->row.type = NK_LAYOUT_STATIC_FREE;
+    else layout->row.type = NK_LAYOUT_DYNAMIC_FREE;
+
+    layout->row.ratio = 0;
+    layout->row.filled = 0;
+    layout->row.item_width = 0;
+    layout->row.item_offset = 0;
+}
+NK_API void
+nk_layout_space_end(struct nk_context *ctx)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    layout->row.item_width = 0;
+    layout->row.item_height = 0;
+    layout->row.item_offset = 0;
+    nk_zero(&layout->row.item, sizeof(layout->row.item));
+}
+NK_API void
+nk_layout_space_push(struct nk_context *ctx, struct nk_rect rect)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    layout->row.item = rect;
+}
+NK_API struct nk_rect
+nk_layout_space_bounds(struct nk_context *ctx)
+{
+    struct nk_rect ret;
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    win = ctx->current;
+    layout = win->layout;
+
+    ret.x = layout->clip.x;
+    ret.y = layout->clip.y;
+    ret.w = layout->clip.w;
+    ret.h = layout->row.height;
+    return ret;
+}
+NK_API struct nk_rect
+nk_layout_widget_bounds(struct nk_context *ctx)
+{
+    struct nk_rect ret;
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    win = ctx->current;
+    layout = win->layout;
+
+    ret.x = layout->at_x;
+    ret.y = layout->at_y;
+    ret.w = layout->bounds.w - NK_MAX(layout->at_x - layout->bounds.x,0);
+    ret.h = layout->row.height;
+    return ret;
+}
+NK_API struct nk_vec2
+nk_layout_space_to_screen(struct nk_context *ctx, struct nk_vec2 ret)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    win = ctx->current;
+    layout = win->layout;
+
+    ret.x += layout->at_x - (float)*layout->offset_x;
+    ret.y += layout->at_y - (float)*layout->offset_y;
+    return ret;
+}
+NK_API struct nk_vec2
+nk_layout_space_to_local(struct nk_context *ctx, struct nk_vec2 ret)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    win = ctx->current;
+    layout = win->layout;
+
+    ret.x += -layout->at_x + (float)*layout->offset_x;
+    ret.y += -layout->at_y + (float)*layout->offset_y;
+    return ret;
+}
+NK_API struct nk_rect
+nk_layout_space_rect_to_screen(struct nk_context *ctx, struct nk_rect ret)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    win = ctx->current;
+    layout = win->layout;
+
+    ret.x += layout->at_x - (float)*layout->offset_x;
+    ret.y += layout->at_y - (float)*layout->offset_y;
+    return ret;
+}
+NK_API struct nk_rect
+nk_layout_space_rect_to_local(struct nk_context *ctx, struct nk_rect ret)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    win = ctx->current;
+    layout = win->layout;
+
+    ret.x += -layout->at_x + (float)*layout->offset_x;
+    ret.y += -layout->at_y + (float)*layout->offset_y;
+    return ret;
+}
+NK_LIB void
+nk_panel_alloc_row(const struct nk_context *ctx, struct nk_window *win)
+{
+    struct nk_panel *layout = win->layout;
+    struct nk_vec2 spacing = ctx->style.window.spacing;
+    const float row_height = layout->row.height - spacing.y;
+    nk_panel_layout(ctx, win, row_height, layout->row.columns);
+}
+NK_LIB void
+nk_layout_widget_space(struct nk_rect *bounds, const struct nk_context *ctx,
+    struct nk_window *win, int modify)
+{
+    struct nk_panel *layout;
+    const struct nk_style *style;
+
+    struct nk_vec2 spacing;
+    struct nk_vec2 padding;
+
+    float item_offset = 0;
+    float item_width = 0;
+    float item_spacing = 0;
+    float panel_space = 0;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    style = &ctx->style;
+    NK_ASSERT(bounds);
+
+    spacing = style->window.spacing;
+    padding = nk_panel_get_padding(style, layout->type);
+    panel_space = nk_layout_row_calculate_usable_space(&ctx->style, layout->type,
+                                            layout->bounds.w, layout->row.columns);
+
+    #define NK_FRAC(x) (x - (int)x) /* will be used to remove fookin gaps */
+    /* calculate the width of one item inside the current layout space */
+    switch (layout->row.type) {
+    case NK_LAYOUT_DYNAMIC_FIXED: {
+        /* scaling fixed size widgets item width */
+        float w = NK_MAX(1.0f,panel_space) / (float)layout->row.columns;
+        item_offset = (float)layout->row.index * w;
+        item_width = w + NK_FRAC(item_offset);
+        item_spacing = (float)layout->row.index * spacing.x;
+    } break;
+    case NK_LAYOUT_DYNAMIC_ROW: {
+        /* scaling single ratio widget width */
+        float w = layout->row.item_width * panel_space;
+        item_offset = layout->row.item_offset;
+        item_width = w + NK_FRAC(item_offset);
+        item_spacing = 0;
+
+        if (modify) {
+            layout->row.item_offset += w + spacing.x;
+            layout->row.filled += layout->row.item_width;
+            layout->row.index = 0;
+        }
+    } break;
+    case NK_LAYOUT_DYNAMIC_FREE: {
+        /* panel width depended free widget placing */
+        bounds->x = layout->at_x + (layout->bounds.w * layout->row.item.x);
+        bounds->x -= (float)*layout->offset_x;
+        bounds->y = layout->at_y + (layout->row.height * layout->row.item.y);
+        bounds->y -= (float)*layout->offset_y;
+        bounds->w = layout->bounds.w  * layout->row.item.w + NK_FRAC(bounds->x);
+        bounds->h = layout->row.height * layout->row.item.h + NK_FRAC(bounds->y);
+        return;
+    }
+    case NK_LAYOUT_DYNAMIC: {
+        /* scaling arrays of panel width ratios for every widget */
+        float ratio, w;
+        NK_ASSERT(layout->row.ratio);
+        ratio = (layout->row.ratio[layout->row.index] < 0) ?
+            layout->row.item_width : layout->row.ratio[layout->row.index];
+
+        w = (ratio * panel_space);
+        item_spacing = (float)layout->row.index * spacing.x;
+        item_offset = layout->row.item_offset;
+        item_width = w + NK_FRAC(item_offset);
+
+        if (modify) {
+            layout->row.item_offset += w;
+            layout->row.filled += ratio;
+        }
+    } break;
+    case NK_LAYOUT_STATIC_FIXED: {
+        /* non-scaling fixed widgets item width */
+        item_width = layout->row.item_width;
+        item_offset = (float)layout->row.index * item_width;
+        item_spacing = (float)layout->row.index * spacing.x;
+    } break;
+    case NK_LAYOUT_STATIC_ROW: {
+        /* scaling single ratio widget width */
+        item_width = layout->row.item_width;
+        item_offset = layout->row.item_offset;
+        item_spacing = (float)layout->row.index * spacing.x;
+        if (modify) layout->row.item_offset += item_width;
+    } break;
+    case NK_LAYOUT_STATIC_FREE: {
+        /* free widget placing */
+        bounds->x = layout->at_x + layout->row.item.x;
+        bounds->w = layout->row.item.w;
+        if (((bounds->x + bounds->w) > layout->max_x) && modify)
+            layout->max_x = (bounds->x + bounds->w);
+        bounds->x -= (float)*layout->offset_x;
+        bounds->y = layout->at_y + layout->row.item.y;
+        bounds->y -= (float)*layout->offset_y;
+        bounds->h = layout->row.item.h;
+        return;
+    }
+    case NK_LAYOUT_STATIC: {
+        /* non-scaling array of panel pixel width for every widget */
+        item_spacing = (float)layout->row.index * spacing.x;
+        item_width = layout->row.ratio[layout->row.index];
+        item_offset = layout->row.item_offset;
+        if (modify) layout->row.item_offset += item_width;
+    } break;
+    case NK_LAYOUT_TEMPLATE: {
+        /* stretchy row layout with combined dynamic/static widget width*/
+        float w;
+        NK_ASSERT(layout->row.index < layout->row.columns);
+        NK_ASSERT(layout->row.index < NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS);
+        w = layout->row.templates[layout->row.index];
+        item_offset = layout->row.item_offset;
+        item_width = w + NK_FRAC(item_offset);
+        item_spacing = (float)layout->row.index * spacing.x;
+        if (modify) layout->row.item_offset += w;
+    } break;
+    #undef NK_FRAC
+    default: NK_ASSERT(0); break;
+    };
+
+    /* set the bounds of the newly allocated widget */
+    bounds->w = item_width;
+    bounds->h = layout->row.height - spacing.y;
+    bounds->y = layout->at_y - (float)*layout->offset_y;
+    bounds->x = layout->at_x + item_offset + item_spacing + padding.x;
+    if (((bounds->x + bounds->w) > layout->max_x) && modify)
+        layout->max_x = bounds->x + bounds->w;
+    bounds->x -= (float)*layout->offset_x;
+}
+NK_LIB void
+nk_panel_alloc_space(struct nk_rect *bounds, const struct nk_context *ctx)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    /* check if the end of the row has been hit and begin new row if so */
+    win = ctx->current;
+    layout = win->layout;
+    if (layout->row.index >= layout->row.columns)
+        nk_panel_alloc_row(ctx, win);
+
+    /* calculate widget position and size */
+    nk_layout_widget_space(bounds, ctx, win, nk_true);
+    layout->row.index++;
+}
+NK_LIB void
+nk_layout_peek(struct nk_rect *bounds, struct nk_context *ctx)
+{
+    float y;
+    int index;
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    y = layout->at_y;
+    index = layout->row.index;
+    if (layout->row.index >= layout->row.columns) {
+        layout->at_y += layout->row.height;
+        layout->row.index = 0;
+    }
+    nk_layout_widget_space(bounds, ctx, win, nk_false);
+    if (!layout->row.index) {
+        bounds->x -= layout->row.item_offset;
+    }
+    layout->at_y = y;
+    layout->row.index = index;
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              TREE
+ *
+ * ===============================================================*/
+NK_INTERN int
+nk_tree_state_base(struct nk_context *ctx, enum nk_tree_type type,
+    struct nk_image *img, const char *title, enum nk_collapse_states *state)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_style *style;
+    struct nk_command_buffer *out;
+    const struct nk_input *in;
+    const struct nk_style_button *button;
+    enum nk_symbol_type symbol;
+    float row_height;
+
+    struct nk_vec2 item_spacing;
+    struct nk_rect header = {0,0,0,0};
+    struct nk_rect sym = {0,0,0,0};
+    struct nk_text text;
+
+    nk_flags ws = 0;
+    enum nk_widget_layout_states widget_state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    /* cache some data */
+    win = ctx->current;
+    layout = win->layout;
+    out = &win->buffer;
+    style = &ctx->style;
+    item_spacing = style->window.spacing;
+
+    /* calculate header bounds and draw background */
+    row_height = style->font->height + 2 * style->tab.padding.y;
+    nk_layout_set_min_row_height(ctx, row_height);
+    nk_layout_row_dynamic(ctx, row_height, 1);
+    nk_layout_reset_min_row_height(ctx);
+
+    widget_state = nk_widget(&header, ctx);
+    if (type == NK_TREE_TAB) {
+        const struct nk_style_item *background = &style->tab.background;
+        if (background->type == NK_STYLE_ITEM_IMAGE) {
+            nk_draw_image(out, header, &background->data.image, nk_white);
+            text.background = nk_rgba(0,0,0,0);
+        } else {
+            text.background = background->data.color;
+            nk_fill_rect(out, header, 0, style->tab.border_color);
+            nk_fill_rect(out, nk_shrink_rect(header, style->tab.border),
+                style->tab.rounding, background->data.color);
+        }
+    } else text.background = style->window.background;
+
+    /* update node state */
+    in = (!(layout->flags & NK_WINDOW_ROM)) ? &ctx->input: 0;
+    in = (in && widget_state == NK_WIDGET_VALID) ? &ctx->input : 0;
+    if (nk_button_behavior(&ws, header, in, NK_BUTTON_DEFAULT))
+        *state = (*state == NK_MAXIMIZED) ? NK_MINIMIZED : NK_MAXIMIZED;
+
+    /* select correct button style */
+    if (*state == NK_MAXIMIZED) {
+        symbol = style->tab.sym_maximize;
+        if (type == NK_TREE_TAB)
+            button = &style->tab.tab_maximize_button;
+        else button = &style->tab.node_maximize_button;
+    } else {
+        symbol = style->tab.sym_minimize;
+        if (type == NK_TREE_TAB)
+            button = &style->tab.tab_minimize_button;
+        else button = &style->tab.node_minimize_button;
+    }
+
+    {/* draw triangle button */
+    sym.w = sym.h = style->font->height;
+    sym.y = header.y + style->tab.padding.y;
+    sym.x = header.x + style->tab.padding.x;
+    nk_do_button_symbol(&ws, &win->buffer, sym, symbol, NK_BUTTON_DEFAULT,
+        button, 0, style->font);
+
+    if (img) {
+        /* draw optional image icon */
+        sym.x = sym.x + sym.w + 4 * item_spacing.x;
+        nk_draw_image(&win->buffer, sym, img, nk_white);
+        sym.w = style->font->height + style->tab.spacing.x;}
+    }
+
+    {/* draw label */
+    struct nk_rect label;
+    header.w = NK_MAX(header.w, sym.w + item_spacing.x);
+    label.x = sym.x + sym.w + item_spacing.x;
+    label.y = sym.y;
+    label.w = header.w - (sym.w + item_spacing.y + style->tab.indent);
+    label.h = style->font->height;
+    text.text = style->tab.text;
+    text.padding = nk_vec2(0,0);
+    nk_widget_text(out, label, title, nk_strlen(title), &text,
+        NK_TEXT_LEFT, style->font);}
+
+    /* increase x-axis cursor widget position pointer */
+    if (*state == NK_MAXIMIZED) {
+        layout->at_x = header.x + (float)*layout->offset_x + style->tab.indent;
+        layout->bounds.w = NK_MAX(layout->bounds.w, style->tab.indent);
+        layout->bounds.w -= (style->tab.indent + style->window.padding.x);
+        layout->row.tree_depth++;
+        return nk_true;
+    } else return nk_false;
+}
+NK_INTERN int
+nk_tree_base(struct nk_context *ctx, enum nk_tree_type type,
+    struct nk_image *img, const char *title, enum nk_collapse_states initial_state,
+    const char *hash, int len, int line)
+{
+    struct nk_window *win = ctx->current;
+    int title_len = 0;
+    nk_hash tree_hash = 0;
+    nk_uint *state = 0;
+
+    /* retrieve tree state from internal widget state tables */
+    if (!hash) {
+        title_len = (int)nk_strlen(title);
+        tree_hash = nk_murmur_hash(title, (int)title_len, (nk_hash)line);
+    } else tree_hash = nk_murmur_hash(hash, len, (nk_hash)line);
+    state = nk_find_value(win, tree_hash);
+    if (!state) {
+        state = nk_add_value(ctx, win, tree_hash, 0);
+        *state = initial_state;
+    }
+    return nk_tree_state_base(ctx, type, img, title, (enum nk_collapse_states*)state);
+}
+NK_API int
+nk_tree_state_push(struct nk_context *ctx, enum nk_tree_type type,
+    const char *title, enum nk_collapse_states *state)
+{
+    return nk_tree_state_base(ctx, type, 0, title, state);
+}
+NK_API int
+nk_tree_state_image_push(struct nk_context *ctx, enum nk_tree_type type,
+    struct nk_image img, const char *title, enum nk_collapse_states *state)
+{
+    return nk_tree_state_base(ctx, type, &img, title, state);
+}
+NK_API void
+nk_tree_state_pop(struct nk_context *ctx)
+{
+    struct nk_window *win = 0;
+    struct nk_panel *layout = 0;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    layout->at_x -= ctx->style.tab.indent + ctx->style.window.padding.x;
+    layout->bounds.w += ctx->style.tab.indent + ctx->style.window.padding.x;
+    NK_ASSERT(layout->row.tree_depth);
+    layout->row.tree_depth--;
+}
+NK_API int
+nk_tree_push_hashed(struct nk_context *ctx, enum nk_tree_type type,
+    const char *title, enum nk_collapse_states initial_state,
+    const char *hash, int len, int line)
+{
+    return nk_tree_base(ctx, type, 0, title, initial_state, hash, len, line);
+}
+NK_API int
+nk_tree_image_push_hashed(struct nk_context *ctx, enum nk_tree_type type,
+    struct nk_image img, const char *title, enum nk_collapse_states initial_state,
+    const char *hash, int len,int seed)
+{
+    return nk_tree_base(ctx, type, &img, title, initial_state, hash, len, seed);
+}
+NK_API void
+nk_tree_pop(struct nk_context *ctx)
+{
+    nk_tree_state_pop(ctx);
+}
+NK_INTERN int
+nk_tree_element_image_push_hashed_base(struct nk_context *ctx, enum nk_tree_type type,
+    struct nk_image *img, const char *title, int title_len,
+    enum nk_collapse_states *state, int *selected)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_style *style;
+    struct nk_command_buffer *out;
+    const struct nk_input *in;
+    const struct nk_style_button *button;
+    enum nk_symbol_type symbol;
+    float row_height;
+    struct nk_vec2 padding;
+
+    int text_len;
+    float text_width;
+
+    struct nk_vec2 item_spacing;
+    struct nk_rect header = {0,0,0,0};
+    struct nk_rect sym = {0,0,0,0};
+    struct nk_text text;
+
+    nk_flags ws = 0;
+    enum nk_widget_layout_states widget_state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    /* cache some data */
+    win = ctx->current;
+    layout = win->layout;
+    out = &win->buffer;
+    style = &ctx->style;
+    item_spacing = style->window.spacing;
+    padding = style->selectable.padding;
+
+    /* calculate header bounds and draw background */
+    row_height = style->font->height + 2 * style->tab.padding.y;
+    nk_layout_set_min_row_height(ctx, row_height);
+    nk_layout_row_dynamic(ctx, row_height, 1);
+    nk_layout_reset_min_row_height(ctx);
+
+    widget_state = nk_widget(&header, ctx);
+    if (type == NK_TREE_TAB) {
+        const struct nk_style_item *background = &style->tab.background;
+        if (background->type == NK_STYLE_ITEM_IMAGE) {
+            nk_draw_image(out, header, &background->data.image, nk_white);
+            text.background = nk_rgba(0,0,0,0);
+        } else {
+            text.background = background->data.color;
+            nk_fill_rect(out, header, 0, style->tab.border_color);
+            nk_fill_rect(out, nk_shrink_rect(header, style->tab.border),
+                style->tab.rounding, background->data.color);
+        }
+    } else text.background = style->window.background;
+
+    in = (!(layout->flags & NK_WINDOW_ROM)) ? &ctx->input: 0;
+    in = (in && widget_state == NK_WIDGET_VALID) ? &ctx->input : 0;
+
+    /* select correct button style */
+    if (*state == NK_MAXIMIZED) {
+        symbol = style->tab.sym_maximize;
+        if (type == NK_TREE_TAB)
+            button = &style->tab.tab_maximize_button;
+        else button = &style->tab.node_maximize_button;
+    } else {
+        symbol = style->tab.sym_minimize;
+        if (type == NK_TREE_TAB)
+            button = &style->tab.tab_minimize_button;
+        else button = &style->tab.node_minimize_button;
+    }
+    {/* draw triangle button */
+    sym.w = sym.h = style->font->height;
+    sym.y = header.y + style->tab.padding.y;
+    sym.x = header.x + style->tab.padding.x;
+    if (nk_do_button_symbol(&ws, &win->buffer, sym, symbol, NK_BUTTON_DEFAULT, button, in, style->font))
+        *state = (*state == NK_MAXIMIZED) ? NK_MINIMIZED : NK_MAXIMIZED;}
+
+    /* draw label */
+    {nk_flags dummy = 0;
+    struct nk_rect label;
+    /* calculate size of the text and tooltip */
+    text_len = nk_strlen(title);
+    text_width = style->font->width(style->font->userdata, style->font->height, title, text_len);
+    text_width += (4 * padding.x);
+
+    header.w = NK_MAX(header.w, sym.w + item_spacing.x);
+    label.x = sym.x + sym.w + item_spacing.x;
+    label.y = sym.y;
+    label.w = NK_MIN(header.w - (sym.w + item_spacing.y + style->tab.indent), text_width);
+    label.h = style->font->height;
+
+    if (img) {
+        nk_do_selectable_image(&dummy, &win->buffer, label, title, title_len, NK_TEXT_LEFT,
+            selected, img, &style->selectable, in, style->font);
+    } else nk_do_selectable(&dummy, &win->buffer, label, title, title_len, NK_TEXT_LEFT,
+            selected, &style->selectable, in, style->font);
+    }
+    /* increase x-axis cursor widget position pointer */
+    if (*state == NK_MAXIMIZED) {
+        layout->at_x = header.x + (float)*layout->offset_x + style->tab.indent;
+        layout->bounds.w = NK_MAX(layout->bounds.w, style->tab.indent);
+        layout->bounds.w -= (style->tab.indent + style->window.padding.x);
+        layout->row.tree_depth++;
+        return nk_true;
+    } else return nk_false;
+}
+NK_INTERN int
+nk_tree_element_base(struct nk_context *ctx, enum nk_tree_type type,
+    struct nk_image *img, const char *title, enum nk_collapse_states initial_state,
+    int *selected, const char *hash, int len, int line)
+{
+    struct nk_window *win = ctx->current;
+    int title_len = 0;
+    nk_hash tree_hash = 0;
+    nk_uint *state = 0;
+
+    /* retrieve tree state from internal widget state tables */
+    if (!hash) {
+        title_len = (int)nk_strlen(title);
+        tree_hash = nk_murmur_hash(title, (int)title_len, (nk_hash)line);
+    } else tree_hash = nk_murmur_hash(hash, len, (nk_hash)line);
+    state = nk_find_value(win, tree_hash);
+    if (!state) {
+        state = nk_add_value(ctx, win, tree_hash, 0);
+        *state = initial_state;
+    } return nk_tree_element_image_push_hashed_base(ctx, type, img, title,
+        nk_strlen(title), (enum nk_collapse_states*)state, selected);
+}
+NK_API int
+nk_tree_element_push_hashed(struct nk_context *ctx, enum nk_tree_type type,
+    const char *title, enum nk_collapse_states initial_state,
+    int *selected, const char *hash, int len, int seed)
+{
+    return nk_tree_element_base(ctx, type, 0, title, initial_state, selected, hash, len, seed);
+}
+NK_API int
+nk_tree_element_image_push_hashed(struct nk_context *ctx, enum nk_tree_type type,
+    struct nk_image img, const char *title, enum nk_collapse_states initial_state,
+    int *selected, const char *hash, int len,int seed)
+{
+    return nk_tree_element_base(ctx, type, &img, title, initial_state, selected, hash, len, seed);
+}
+NK_API void
+nk_tree_element_pop(struct nk_context *ctx)
+{
+    nk_tree_state_pop(ctx);
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                          GROUP
+ *
+ * ===============================================================*/
+NK_API int
+nk_group_scrolled_offset_begin(struct nk_context *ctx,
+    nk_uint *x_offset, nk_uint *y_offset, const char *title, nk_flags flags)
+{
+    struct nk_rect bounds;
+    struct nk_window panel;
+    struct nk_window *win;
+
+    win = ctx->current;
+    nk_panel_alloc_space(&bounds, ctx);
+    {const struct nk_rect *c = &win->layout->clip;
+    if (!NK_INTERSECT(c->x, c->y, c->w, c->h, bounds.x, bounds.y, bounds.w, bounds.h) &&
+        !(flags & NK_WINDOW_MOVABLE)) {
+        return 0;
+    }}
+    if (win->flags & NK_WINDOW_ROM)
+        flags |= NK_WINDOW_ROM;
+
+    /* initialize a fake window to create the panel from */
+    nk_zero(&panel, sizeof(panel));
+    panel.bounds = bounds;
+    panel.flags = flags;
+    panel.scrollbar.x = *x_offset;
+    panel.scrollbar.y = *y_offset;
+    panel.buffer = win->buffer;
+    panel.layout = (struct nk_panel*)nk_create_panel(ctx);
+    ctx->current = &panel;
+    nk_panel_begin(ctx, (flags & NK_WINDOW_TITLE) ? title: 0, NK_PANEL_GROUP);
+
+    win->buffer = panel.buffer;
+    win->buffer.clip = panel.layout->clip;
+    panel.layout->offset_x = x_offset;
+    panel.layout->offset_y = y_offset;
+    panel.layout->parent = win->layout;
+    win->layout = panel.layout;
+
+    ctx->current = win;
+    if ((panel.layout->flags & NK_WINDOW_CLOSED) ||
+        (panel.layout->flags & NK_WINDOW_MINIMIZED))
+    {
+        nk_flags f = panel.layout->flags;
+        nk_group_scrolled_end(ctx);
+        if (f & NK_WINDOW_CLOSED)
+            return NK_WINDOW_CLOSED;
+        if (f & NK_WINDOW_MINIMIZED)
+            return NK_WINDOW_MINIMIZED;
+    }
+    return 1;
+}
+NK_API void
+nk_group_scrolled_end(struct nk_context *ctx)
+{
+    struct nk_window *win;
+    struct nk_panel *parent;
+    struct nk_panel *g;
+
+    struct nk_rect clip;
+    struct nk_window pan;
+    struct nk_vec2 panel_padding;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current)
+        return;
+
+    /* make sure nk_group_begin was called correctly */
+    NK_ASSERT(ctx->current);
+    win = ctx->current;
+    NK_ASSERT(win->layout);
+    g = win->layout;
+    NK_ASSERT(g->parent);
+    parent = g->parent;
+
+    /* dummy window */
+    nk_zero_struct(pan);
+    panel_padding = nk_panel_get_padding(&ctx->style, NK_PANEL_GROUP);
+    pan.bounds.y = g->bounds.y - (g->header_height + g->menu.h);
+    pan.bounds.x = g->bounds.x - panel_padding.x;
+    pan.bounds.w = g->bounds.w + 2 * panel_padding.x;
+    pan.bounds.h = g->bounds.h + g->header_height + g->menu.h;
+    if (g->flags & NK_WINDOW_BORDER) {
+        pan.bounds.x -= g->border;
+        pan.bounds.y -= g->border;
+        pan.bounds.w += 2*g->border;
+        pan.bounds.h += 2*g->border;
+    }
+    if (!(g->flags & NK_WINDOW_NO_SCROLLBAR)) {
+        pan.bounds.w += ctx->style.window.scrollbar_size.x;
+        pan.bounds.h += ctx->style.window.scrollbar_size.y;
+    }
+    pan.scrollbar.x = *g->offset_x;
+    pan.scrollbar.y = *g->offset_y;
+    pan.flags = g->flags;
+    pan.buffer = win->buffer;
+    pan.layout = g;
+    pan.parent = win;
+    ctx->current = &pan;
+
+    /* make sure group has correct clipping rectangle */
+    nk_unify(&clip, &parent->clip, pan.bounds.x, pan.bounds.y,
+        pan.bounds.x + pan.bounds.w, pan.bounds.y + pan.bounds.h + panel_padding.x);
+    nk_push_scissor(&pan.buffer, clip);
+    nk_end(ctx);
+
+    win->buffer = pan.buffer;
+    nk_push_scissor(&win->buffer, parent->clip);
+    ctx->current = win;
+    win->layout = parent;
+    g->bounds = pan.bounds;
+    return;
+}
+NK_API int
+nk_group_scrolled_begin(struct nk_context *ctx,
+    struct nk_scroll *scroll, const char *title, nk_flags flags)
+{
+    return nk_group_scrolled_offset_begin(ctx, &scroll->x, &scroll->y, title, flags);
+}
+NK_API int
+nk_group_begin_titled(struct nk_context *ctx, const char *id,
+    const char *title, nk_flags flags)
+{
+    int id_len;
+    nk_hash id_hash;
+    struct nk_window *win;
+    nk_uint *x_offset;
+    nk_uint *y_offset;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(id);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout || !id)
+        return 0;
+
+    /* find persistent group scrollbar value */
+    win = ctx->current;
+    id_len = (int)nk_strlen(id);
+    id_hash = nk_murmur_hash(id, (int)id_len, NK_PANEL_GROUP);
+    x_offset = nk_find_value(win, id_hash);
+    if (!x_offset) {
+        x_offset = nk_add_value(ctx, win, id_hash, 0);
+        y_offset = nk_add_value(ctx, win, id_hash+1, 0);
+
+        NK_ASSERT(x_offset);
+        NK_ASSERT(y_offset);
+        if (!x_offset || !y_offset) return 0;
+        *x_offset = *y_offset = 0;
+    } else y_offset = nk_find_value(win, id_hash+1);
+    return nk_group_scrolled_offset_begin(ctx, x_offset, y_offset, title, flags);
+}
+NK_API int
+nk_group_begin(struct nk_context *ctx, const char *title, nk_flags flags)
+{
+    return nk_group_begin_titled(ctx, title, title, flags);
+}
+NK_API void
+nk_group_end(struct nk_context *ctx)
+{
+    nk_group_scrolled_end(ctx);
+}
+NK_API void
+nk_group_get_scroll(struct nk_context *ctx, const char *id, nk_uint *x_offset, nk_uint *y_offset)
+{
+    int id_len;
+    nk_hash id_hash;
+    struct nk_window *win;
+    nk_uint *x_offset_ptr;
+    nk_uint *y_offset_ptr;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(id);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout || !id)
+        return;
+
+    /* find persistent group scrollbar value */
+    win = ctx->current;
+    id_len = (int)nk_strlen(id);
+    id_hash = nk_murmur_hash(id, (int)id_len, NK_PANEL_GROUP);
+    x_offset_ptr = nk_find_value(win, id_hash);
+    if (!x_offset_ptr) {
+        x_offset_ptr = nk_add_value(ctx, win, id_hash, 0);
+        y_offset_ptr = nk_add_value(ctx, win, id_hash+1, 0);
+
+        NK_ASSERT(x_offset_ptr);
+        NK_ASSERT(y_offset_ptr);
+        if (!x_offset_ptr || !y_offset_ptr) return;
+        *x_offset_ptr = *y_offset_ptr = 0;
+    } else y_offset_ptr = nk_find_value(win, id_hash+1);
+    if (x_offset)
+      *x_offset = *x_offset_ptr;
+    if (y_offset)
+      *y_offset = *y_offset_ptr;
+}
+NK_API void
+nk_group_set_scroll(struct nk_context *ctx, const char *id, nk_uint x_offset, nk_uint y_offset)
+{
+    int id_len;
+    nk_hash id_hash;
+    struct nk_window *win;
+    nk_uint *x_offset_ptr;
+    nk_uint *y_offset_ptr;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(id);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout || !id)
+        return;
+
+    /* find persistent group scrollbar value */
+    win = ctx->current;
+    id_len = (int)nk_strlen(id);
+    id_hash = nk_murmur_hash(id, (int)id_len, NK_PANEL_GROUP);
+    x_offset_ptr = nk_find_value(win, id_hash);
+    if (!x_offset_ptr) {
+        x_offset_ptr = nk_add_value(ctx, win, id_hash, 0);
+        y_offset_ptr = nk_add_value(ctx, win, id_hash+1, 0);
+
+        NK_ASSERT(x_offset_ptr);
+        NK_ASSERT(y_offset_ptr);
+        if (!x_offset_ptr || !y_offset_ptr) return;
+        *x_offset_ptr = *y_offset_ptr = 0;
+    } else y_offset_ptr = nk_find_value(win, id_hash+1);
+    *x_offset_ptr = x_offset;
+    *y_offset_ptr = y_offset;
+}
+
+
+
+
+/* ===============================================================
+ *
+ *                          LIST VIEW
+ *
+ * ===============================================================*/
+NK_API int
+nk_list_view_begin(struct nk_context *ctx, struct nk_list_view *view,
+    const char *title, nk_flags flags, int row_height, int row_count)
+{
+    int title_len;
+    nk_hash title_hash;
+    nk_uint *x_offset;
+    nk_uint *y_offset;
+
+    int result;
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_style *style;
+    struct nk_vec2 item_spacing;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(view);
+    NK_ASSERT(title);
+    if (!ctx || !view || !title) return 0;
+
+    win = ctx->current;
+    style = &ctx->style;
+    item_spacing = style->window.spacing;
+    row_height += NK_MAX(0, (int)item_spacing.y);
+
+    /* find persistent list view scrollbar offset */
+    title_len = (int)nk_strlen(title);
+    title_hash = nk_murmur_hash(title, (int)title_len, NK_PANEL_GROUP);
+    x_offset = nk_find_value(win, title_hash);
+    if (!x_offset) {
+        x_offset = nk_add_value(ctx, win, title_hash, 0);
+        y_offset = nk_add_value(ctx, win, title_hash+1, 0);
+
+        NK_ASSERT(x_offset);
+        NK_ASSERT(y_offset);
+        if (!x_offset || !y_offset) return 0;
+        *x_offset = *y_offset = 0;
+    } else y_offset = nk_find_value(win, title_hash+1);
+    view->scroll_value = *y_offset;
+    view->scroll_pointer = y_offset;
+
+    *y_offset = 0;
+    result = nk_group_scrolled_offset_begin(ctx, x_offset, y_offset, title, flags);
+    win = ctx->current;
+    layout = win->layout;
+
+    view->total_height = row_height * NK_MAX(row_count,1);
+    view->begin = (int)NK_MAX(((float)view->scroll_value / (float)row_height), 0.0f);
+    view->count = (int)NK_MAX(nk_iceilf((layout->clip.h)/(float)row_height),0);
+    view->count = NK_MIN(view->count, row_count - view->begin);
+    view->end = view->begin + view->count;
+    view->ctx = ctx;
+    return result;
+}
+NK_API void
+nk_list_view_end(struct nk_list_view *view)
+{
+    struct nk_context *ctx;
+    struct nk_window *win;
+    struct nk_panel *layout;
+
+    NK_ASSERT(view);
+    NK_ASSERT(view->ctx);
+    NK_ASSERT(view->scroll_pointer);
+    if (!view || !view->ctx) return;
+
+    ctx = view->ctx;
+    win = ctx->current;
+    layout = win->layout;
+    layout->at_y = layout->bounds.y + (float)view->total_height;
+    *view->scroll_pointer = *view->scroll_pointer + view->scroll_value;
+    nk_group_end(view->ctx);
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              WIDGET
+ *
+ * ===============================================================*/
+NK_API struct nk_rect
+nk_widget_bounds(struct nk_context *ctx)
+{
+    struct nk_rect bounds;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current)
+        return nk_rect(0,0,0,0);
+    nk_layout_peek(&bounds, ctx);
+    return bounds;
+}
+NK_API struct nk_vec2
+nk_widget_position(struct nk_context *ctx)
+{
+    struct nk_rect bounds;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current)
+        return nk_vec2(0,0);
+
+    nk_layout_peek(&bounds, ctx);
+    return nk_vec2(bounds.x, bounds.y);
+}
+NK_API struct nk_vec2
+nk_widget_size(struct nk_context *ctx)
+{
+    struct nk_rect bounds;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current)
+        return nk_vec2(0,0);
+
+    nk_layout_peek(&bounds, ctx);
+    return nk_vec2(bounds.w, bounds.h);
+}
+NK_API float
+nk_widget_width(struct nk_context *ctx)
+{
+    struct nk_rect bounds;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current)
+        return 0;
+
+    nk_layout_peek(&bounds, ctx);
+    return bounds.w;
+}
+NK_API float
+nk_widget_height(struct nk_context *ctx)
+{
+    struct nk_rect bounds;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current)
+        return 0;
+
+    nk_layout_peek(&bounds, ctx);
+    return bounds.h;
+}
+NK_API int
+nk_widget_is_hovered(struct nk_context *ctx)
+{
+    struct nk_rect c, v;
+    struct nk_rect bounds;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current || ctx->active != ctx->current)
+        return 0;
+
+    c = ctx->current->layout->clip;
+    c.x = (float)((int)c.x);
+    c.y = (float)((int)c.y);
+    c.w = (float)((int)c.w);
+    c.h = (float)((int)c.h);
+
+    nk_layout_peek(&bounds, ctx);
+    nk_unify(&v, &c, bounds.x, bounds.y, bounds.x + bounds.w, bounds.y + bounds.h);
+    if (!NK_INTERSECT(c.x, c.y, c.w, c.h, bounds.x, bounds.y, bounds.w, bounds.h))
+        return 0;
+    return nk_input_is_mouse_hovering_rect(&ctx->input, bounds);
+}
+NK_API int
+nk_widget_is_mouse_clicked(struct nk_context *ctx, enum nk_buttons btn)
+{
+    struct nk_rect c, v;
+    struct nk_rect bounds;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current || ctx->active != ctx->current)
+        return 0;
+
+    c = ctx->current->layout->clip;
+    c.x = (float)((int)c.x);
+    c.y = (float)((int)c.y);
+    c.w = (float)((int)c.w);
+    c.h = (float)((int)c.h);
+
+    nk_layout_peek(&bounds, ctx);
+    nk_unify(&v, &c, bounds.x, bounds.y, bounds.x + bounds.w, bounds.y + bounds.h);
+    if (!NK_INTERSECT(c.x, c.y, c.w, c.h, bounds.x, bounds.y, bounds.w, bounds.h))
+        return 0;
+    return nk_input_mouse_clicked(&ctx->input, btn, bounds);
+}
+NK_API int
+nk_widget_has_mouse_click_down(struct nk_context *ctx, enum nk_buttons btn, int down)
+{
+    struct nk_rect c, v;
+    struct nk_rect bounds;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current || ctx->active != ctx->current)
+        return 0;
+
+    c = ctx->current->layout->clip;
+    c.x = (float)((int)c.x);
+    c.y = (float)((int)c.y);
+    c.w = (float)((int)c.w);
+    c.h = (float)((int)c.h);
+
+    nk_layout_peek(&bounds, ctx);
+    nk_unify(&v, &c, bounds.x, bounds.y, bounds.x + bounds.w, bounds.y + bounds.h);
+    if (!NK_INTERSECT(c.x, c.y, c.w, c.h, bounds.x, bounds.y, bounds.w, bounds.h))
+        return 0;
+    return nk_input_has_mouse_click_down_in_rect(&ctx->input, btn, bounds, down);
+}
+NK_API enum nk_widget_layout_states
+nk_widget(struct nk_rect *bounds, const struct nk_context *ctx)
+{
+    struct nk_rect c, v;
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_input *in;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return NK_WIDGET_INVALID;
+
+    /* allocate space and check if the widget needs to be updated and drawn */
+    nk_panel_alloc_space(bounds, ctx);
+    win = ctx->current;
+    layout = win->layout;
+    in = &ctx->input;
+    c = layout->clip;
+
+    /*  if one of these triggers you forgot to add an `if` condition around either
+        a window, group, popup, combobox or contextual menu `begin` and `end` block.
+        Example:
+            if (nk_begin(...) {...} nk_end(...); or
+            if (nk_group_begin(...) { nk_group_end(...);} */
+    NK_ASSERT(!(layout->flags & NK_WINDOW_MINIMIZED));
+    NK_ASSERT(!(layout->flags & NK_WINDOW_HIDDEN));
+    NK_ASSERT(!(layout->flags & NK_WINDOW_CLOSED));
+
+    /* need to convert to int here to remove floating point errors */
+    bounds->x = (float)((int)bounds->x);
+    bounds->y = (float)((int)bounds->y);
+    bounds->w = (float)((int)bounds->w);
+    bounds->h = (float)((int)bounds->h);
+
+    c.x = (float)((int)c.x);
+    c.y = (float)((int)c.y);
+    c.w = (float)((int)c.w);
+    c.h = (float)((int)c.h);
+
+    nk_unify(&v, &c, bounds->x, bounds->y, bounds->x + bounds->w, bounds->y + bounds->h);
+    if (!NK_INTERSECT(c.x, c.y, c.w, c.h, bounds->x, bounds->y, bounds->w, bounds->h))
+        return NK_WIDGET_INVALID;
+    if (!NK_INBOX(in->mouse.pos.x, in->mouse.pos.y, v.x, v.y, v.w, v.h))
+        return NK_WIDGET_ROM;
+    return NK_WIDGET_VALID;
+}
+NK_API enum nk_widget_layout_states
+nk_widget_fitting(struct nk_rect *bounds, struct nk_context *ctx,
+    struct nk_vec2 item_padding)
+{
+    /* update the bounds to stand without padding  */
+    struct nk_window *win;
+    struct nk_style *style;
+    struct nk_panel *layout;
+    enum nk_widget_layout_states state;
+    struct nk_vec2 panel_padding;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return NK_WIDGET_INVALID;
+
+    win = ctx->current;
+    style = &ctx->style;
+    layout = win->layout;
+    state = nk_widget(bounds, ctx);
+
+    panel_padding = nk_panel_get_padding(style, layout->type);
+    if (layout->row.index == 1) {
+        bounds->w += panel_padding.x;
+        bounds->x -= panel_padding.x;
+    } else bounds->x -= item_padding.x;
+
+    if (layout->row.index == layout->row.columns)
+        bounds->w += panel_padding.x;
+    else bounds->w += item_padding.x;
+    return state;
+}
+NK_API void
+nk_spacing(struct nk_context *ctx, int cols)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    struct nk_rect none;
+    int i, index, rows;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    /* spacing over row boundaries */
+    win = ctx->current;
+    layout = win->layout;
+    index = (layout->row.index + cols) % layout->row.columns;
+    rows = (layout->row.index + cols) / layout->row.columns;
+    if (rows) {
+        for (i = 0; i < rows; ++i)
+            nk_panel_alloc_row(ctx, win);
+        cols = index;
+    }
+    /* non table layout need to allocate space */
+    if (layout->row.type != NK_LAYOUT_DYNAMIC_FIXED &&
+        layout->row.type != NK_LAYOUT_STATIC_FIXED) {
+        for (i = 0; i < cols; ++i)
+            nk_panel_alloc_space(&none, ctx);
+    } layout->row.index = index;
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              TEXT
+ *
+ * ===============================================================*/
+NK_LIB void
+nk_widget_text(struct nk_command_buffer *o, struct nk_rect b,
+    const char *string, int len, const struct nk_text *t,
+    nk_flags a, const struct nk_user_font *f)
+{
+    struct nk_rect label;
+    float text_width;
+
+    NK_ASSERT(o);
+    NK_ASSERT(t);
+    if (!o || !t) return;
+
+    b.h = NK_MAX(b.h, 2 * t->padding.y);
+    label.x = 0; label.w = 0;
+    label.y = b.y + t->padding.y;
+    label.h = NK_MIN(f->height, b.h - 2 * t->padding.y);
+
+    text_width = f->width(f->userdata, f->height, (const char*)string, len);
+    text_width += (2.0f * t->padding.x);
+
+    /* align in x-axis */
+    if (a & NK_TEXT_ALIGN_LEFT) {
+        label.x = b.x + t->padding.x;
+        label.w = NK_MAX(0, b.w - 2 * t->padding.x);
+    } else if (a & NK_TEXT_ALIGN_CENTERED) {
+        label.w = NK_MAX(1, 2 * t->padding.x + (float)text_width);
+        label.x = (b.x + t->padding.x + ((b.w - 2 * t->padding.x) - label.w) / 2);
+        label.x = NK_MAX(b.x + t->padding.x, label.x);
+        label.w = NK_MIN(b.x + b.w, label.x + label.w);
+        if (label.w >= label.x) label.w -= label.x;
+    } else if (a & NK_TEXT_ALIGN_RIGHT) {
+        label.x = NK_MAX(b.x + t->padding.x, (b.x + b.w) - (2 * t->padding.x + (float)text_width));
+        label.w = (float)text_width + 2 * t->padding.x;
+    } else return;
+
+    /* align in y-axis */
+    if (a & NK_TEXT_ALIGN_MIDDLE) {
+        label.y = b.y + b.h/2.0f - (float)f->height/2.0f;
+        label.h = NK_MAX(b.h/2.0f, b.h - (b.h/2.0f + f->height/2.0f));
+    } else if (a & NK_TEXT_ALIGN_BOTTOM) {
+        label.y = b.y + b.h - f->height;
+        label.h = f->height;
+    }
+    nk_draw_text(o, label, (const char*)string, len, f, t->background, t->text);
+}
+NK_LIB void
+nk_widget_text_wrap(struct nk_command_buffer *o, struct nk_rect b,
+    const char *string, int len, const struct nk_text *t,
+    const struct nk_user_font *f)
+{
+    float width;
+    int glyphs = 0;
+    int fitting = 0;
+    int done = 0;
+    struct nk_rect line;
+    struct nk_text text;
+    NK_INTERN nk_rune seperator[] = {' '};
+
+    NK_ASSERT(o);
+    NK_ASSERT(t);
+    if (!o || !t) return;
+
+    text.padding = nk_vec2(0,0);
+    text.background = t->background;
+    text.text = t->text;
+
+    b.w = NK_MAX(b.w, 2 * t->padding.x);
+    b.h = NK_MAX(b.h, 2 * t->padding.y);
+    b.h = b.h - 2 * t->padding.y;
+
+    line.x = b.x + t->padding.x;
+    line.y = b.y + t->padding.y;
+    line.w = b.w - 2 * t->padding.x;
+    line.h = 2 * t->padding.y + f->height;
+
+    fitting = nk_text_clamp(f, string, len, line.w, &glyphs, &width, seperator,NK_LEN(seperator));
+    while (done < len) {
+        if (!fitting || line.y + line.h >= (b.y + b.h)) break;
+        nk_widget_text(o, line, &string[done], fitting, &text, NK_TEXT_LEFT, f);
+        done += fitting;
+        line.y += f->height + 2 * t->padding.y;
+        fitting = nk_text_clamp(f, &string[done], len - done, line.w, &glyphs, &width, seperator,NK_LEN(seperator));
+    }
+}
+NK_API void
+nk_text_colored(struct nk_context *ctx, const char *str, int len,
+    nk_flags alignment, struct nk_color color)
+{
+    struct nk_window *win;
+    const struct nk_style *style;
+
+    struct nk_vec2 item_padding;
+    struct nk_rect bounds;
+    struct nk_text text;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout) return;
+
+    win = ctx->current;
+    style = &ctx->style;
+    nk_panel_alloc_space(&bounds, ctx);
+    item_padding = style->text.padding;
+
+    text.padding.x = item_padding.x;
+    text.padding.y = item_padding.y;
+    text.background = style->window.background;
+    text.text = color;
+    nk_widget_text(&win->buffer, bounds, str, len, &text, alignment, style->font);
+}
+NK_API void
+nk_text_wrap_colored(struct nk_context *ctx, const char *str,
+    int len, struct nk_color color)
+{
+    struct nk_window *win;
+    const struct nk_style *style;
+
+    struct nk_vec2 item_padding;
+    struct nk_rect bounds;
+    struct nk_text text;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout) return;
+
+    win = ctx->current;
+    style = &ctx->style;
+    nk_panel_alloc_space(&bounds, ctx);
+    item_padding = style->text.padding;
+
+    text.padding.x = item_padding.x;
+    text.padding.y = item_padding.y;
+    text.background = style->window.background;
+    text.text = color;
+    nk_widget_text_wrap(&win->buffer, bounds, str, len, &text, style->font);
+}
+#ifdef NK_INCLUDE_STANDARD_VARARGS
+NK_API void
+nk_labelf_colored(struct nk_context *ctx, nk_flags flags,
+    struct nk_color color, const char *fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    nk_labelfv_colored(ctx, flags, color, fmt, args);
+    va_end(args);
+}
+NK_API void
+nk_labelf_colored_wrap(struct nk_context *ctx, struct nk_color color,
+    const char *fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    nk_labelfv_colored_wrap(ctx, color, fmt, args);
+    va_end(args);
+}
+NK_API void
+nk_labelf(struct nk_context *ctx, nk_flags flags, const char *fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    nk_labelfv(ctx, flags, fmt, args);
+    va_end(args);
+}
+NK_API void
+nk_labelf_wrap(struct nk_context *ctx, const char *fmt,...)
+{
+    va_list args;
+    va_start(args, fmt);
+    nk_labelfv_wrap(ctx, fmt, args);
+    va_end(args);
+}
+NK_API void
+nk_labelfv_colored(struct nk_context *ctx, nk_flags flags,
+    struct nk_color color, const char *fmt, va_list args)
+{
+    char buf[256];
+    nk_strfmt(buf, NK_LEN(buf), fmt, args);
+    nk_label_colored(ctx, buf, flags, color);
+}
+
+NK_API void
+nk_labelfv_colored_wrap(struct nk_context *ctx, struct nk_color color,
+    const char *fmt, va_list args)
+{
+    char buf[256];
+    nk_strfmt(buf, NK_LEN(buf), fmt, args);
+    nk_label_colored_wrap(ctx, buf, color);
+}
+
+NK_API void
+nk_labelfv(struct nk_context *ctx, nk_flags flags, const char *fmt, va_list args)
+{
+    char buf[256];
+    nk_strfmt(buf, NK_LEN(buf), fmt, args);
+    nk_label(ctx, buf, flags);
+}
+
+NK_API void
+nk_labelfv_wrap(struct nk_context *ctx, const char *fmt, va_list args)
+{
+    char buf[256];
+    nk_strfmt(buf, NK_LEN(buf), fmt, args);
+    nk_label_wrap(ctx, buf);
+}
+
+NK_API void
+nk_value_bool(struct nk_context *ctx, const char *prefix, int value)
+{
+    nk_labelf(ctx, NK_TEXT_LEFT, "%s: %s", prefix, ((value) ? "true": "false"));
+}
+NK_API void
+nk_value_int(struct nk_context *ctx, const char *prefix, int value)
+{
+    nk_labelf(ctx, NK_TEXT_LEFT, "%s: %d", prefix, value);
+}
+NK_API void
+nk_value_uint(struct nk_context *ctx, const char *prefix, unsigned int value)
+{
+    nk_labelf(ctx, NK_TEXT_LEFT, "%s: %u", prefix, value);
+}
+NK_API void
+nk_value_float(struct nk_context *ctx, const char *prefix, float value)
+{
+    double double_value = (double)value;
+    nk_labelf(ctx, NK_TEXT_LEFT, "%s: %.3f", prefix, double_value);
+}
+NK_API void
+nk_value_color_byte(struct nk_context *ctx, const char *p, struct nk_color c)
+{
+    nk_labelf(ctx, NK_TEXT_LEFT, "%s: (%d, %d, %d, %d)", p, c.r, c.g, c.b, c.a);
+}
+NK_API void
+nk_value_color_float(struct nk_context *ctx, const char *p, struct nk_color color)
+{
+    double c[4]; nk_color_dv(c, color);
+    nk_labelf(ctx, NK_TEXT_LEFT, "%s: (%.2f, %.2f, %.2f, %.2f)",
+        p, c[0], c[1], c[2], c[3]);
+}
+NK_API void
+nk_value_color_hex(struct nk_context *ctx, const char *prefix, struct nk_color color)
+{
+    char hex[16];
+    nk_color_hex_rgba(hex, color);
+    nk_labelf(ctx, NK_TEXT_LEFT, "%s: %s", prefix, hex);
+}
+#endif
+NK_API void
+nk_text(struct nk_context *ctx, const char *str, int len, nk_flags alignment)
+{
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    nk_text_colored(ctx, str, len, alignment, ctx->style.text.color);
+}
+NK_API void
+nk_text_wrap(struct nk_context *ctx, const char *str, int len)
+{
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    nk_text_wrap_colored(ctx, str, len, ctx->style.text.color);
+}
+NK_API void
+nk_label(struct nk_context *ctx, const char *str, nk_flags alignment)
+{
+    nk_text(ctx, str, nk_strlen(str), alignment);
+}
+NK_API void
+nk_label_colored(struct nk_context *ctx, const char *str, nk_flags align,
+    struct nk_color color)
+{
+    nk_text_colored(ctx, str, nk_strlen(str), align, color);
+}
+NK_API void
+nk_label_wrap(struct nk_context *ctx, const char *str)
+{
+    nk_text_wrap(ctx, str, nk_strlen(str));
+}
+NK_API void
+nk_label_colored_wrap(struct nk_context *ctx, const char *str, struct nk_color color)
+{
+    nk_text_wrap_colored(ctx, str, nk_strlen(str), color);
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                          IMAGE
+ *
+ * ===============================================================*/
+NK_API nk_handle
+nk_handle_ptr(void *ptr)
+{
+    nk_handle handle = {0};
+    handle.ptr = ptr;
+    return handle;
+}
+NK_API nk_handle
+nk_handle_id(int id)
+{
+    nk_handle handle;
+    nk_zero_struct(handle);
+    handle.id = id;
+    return handle;
+}
+NK_API struct nk_image
+nk_subimage_ptr(void *ptr, unsigned short w, unsigned short h, struct nk_rect r)
+{
+    struct nk_image s;
+    nk_zero(&s, sizeof(s));
+    s.handle.ptr = ptr;
+    s.w = w; s.h = h;
+    s.region[0] = (unsigned short)r.x;
+    s.region[1] = (unsigned short)r.y;
+    s.region[2] = (unsigned short)r.w;
+    s.region[3] = (unsigned short)r.h;
+    return s;
+}
+NK_API struct nk_image
+nk_subimage_id(int id, unsigned short w, unsigned short h, struct nk_rect r)
+{
+    struct nk_image s;
+    nk_zero(&s, sizeof(s));
+    s.handle.id = id;
+    s.w = w; s.h = h;
+    s.region[0] = (unsigned short)r.x;
+    s.region[1] = (unsigned short)r.y;
+    s.region[2] = (unsigned short)r.w;
+    s.region[3] = (unsigned short)r.h;
+    return s;
+}
+NK_API struct nk_image
+nk_subimage_handle(nk_handle handle, unsigned short w, unsigned short h,
+    struct nk_rect r)
+{
+    struct nk_image s;
+    nk_zero(&s, sizeof(s));
+    s.handle = handle;
+    s.w = w; s.h = h;
+    s.region[0] = (unsigned short)r.x;
+    s.region[1] = (unsigned short)r.y;
+    s.region[2] = (unsigned short)r.w;
+    s.region[3] = (unsigned short)r.h;
+    return s;
+}
+NK_API struct nk_image
+nk_image_handle(nk_handle handle)
+{
+    struct nk_image s;
+    nk_zero(&s, sizeof(s));
+    s.handle = handle;
+    s.w = 0; s.h = 0;
+    s.region[0] = 0;
+    s.region[1] = 0;
+    s.region[2] = 0;
+    s.region[3] = 0;
+    return s;
+}
+NK_API struct nk_image
+nk_image_ptr(void *ptr)
+{
+    struct nk_image s;
+    nk_zero(&s, sizeof(s));
+    NK_ASSERT(ptr);
+    s.handle.ptr = ptr;
+    s.w = 0; s.h = 0;
+    s.region[0] = 0;
+    s.region[1] = 0;
+    s.region[2] = 0;
+    s.region[3] = 0;
+    return s;
+}
+NK_API struct nk_image
+nk_image_id(int id)
+{
+    struct nk_image s;
+    nk_zero(&s, sizeof(s));
+    s.handle.id = id;
+    s.w = 0; s.h = 0;
+    s.region[0] = 0;
+    s.region[1] = 0;
+    s.region[2] = 0;
+    s.region[3] = 0;
+    return s;
+}
+NK_API int
+nk_image_is_subimage(const struct nk_image* img)
+{
+    NK_ASSERT(img);
+    return !(img->w == 0 && img->h == 0);
+}
+NK_API void
+nk_image(struct nk_context *ctx, struct nk_image img)
+{
+    struct nk_window *win;
+    struct nk_rect bounds;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout) return;
+
+    win = ctx->current;
+    if (!nk_widget(&bounds, ctx)) return;
+    nk_draw_image(&win->buffer, bounds, &img, nk_white);
+}
+NK_API void
+nk_image_color(struct nk_context *ctx, struct nk_image img, struct nk_color col)
+{
+    struct nk_window *win;
+    struct nk_rect bounds;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout) return;
+
+    win = ctx->current;
+    if (!nk_widget(&bounds, ctx)) return;
+    nk_draw_image(&win->buffer, bounds, &img, col);
+}
+
+
+
+
+
+/* ==============================================================
+ *
+ *                          BUTTON
+ *
+ * ===============================================================*/
+NK_LIB void
+nk_draw_symbol(struct nk_command_buffer *out, enum nk_symbol_type type,
+    struct nk_rect content, struct nk_color background, struct nk_color foreground,
+    float border_width, const struct nk_user_font *font)
+{
+    switch (type) {
+    case NK_SYMBOL_X:
+    case NK_SYMBOL_UNDERSCORE:
+    case NK_SYMBOL_PLUS:
+    case NK_SYMBOL_MINUS: {
+        /* single character text symbol */
+        const char *X = (type == NK_SYMBOL_X) ? "x":
+            (type == NK_SYMBOL_UNDERSCORE) ? "_":
+            (type == NK_SYMBOL_PLUS) ? "+": "-";
+        struct nk_text text;
+        text.padding = nk_vec2(0,0);
+        text.background = background;
+        text.text = foreground;
+        nk_widget_text(out, content, X, 1, &text, NK_TEXT_CENTERED, font);
+    } break;
+    case NK_SYMBOL_CIRCLE_SOLID:
+    case NK_SYMBOL_CIRCLE_OUTLINE:
+    case NK_SYMBOL_RECT_SOLID:
+    case NK_SYMBOL_RECT_OUTLINE: {
+        /* simple empty/filled shapes */
+        if (type == NK_SYMBOL_RECT_SOLID || type == NK_SYMBOL_RECT_OUTLINE) {
+            nk_fill_rect(out, content,  0, foreground);
+            if (type == NK_SYMBOL_RECT_OUTLINE)
+                nk_fill_rect(out, nk_shrink_rect(content, border_width), 0, background);
+        } else {
+            nk_fill_circle(out, content, foreground);
+            if (type == NK_SYMBOL_CIRCLE_OUTLINE)
+                nk_fill_circle(out, nk_shrink_rect(content, 1), background);
+        }
+    } break;
+    case NK_SYMBOL_TRIANGLE_UP:
+    case NK_SYMBOL_TRIANGLE_DOWN:
+    case NK_SYMBOL_TRIANGLE_LEFT:
+    case NK_SYMBOL_TRIANGLE_RIGHT: {
+        enum nk_heading heading;
+        struct nk_vec2 points[3];
+        heading = (type == NK_SYMBOL_TRIANGLE_RIGHT) ? NK_RIGHT :
+            (type == NK_SYMBOL_TRIANGLE_LEFT) ? NK_LEFT:
+            (type == NK_SYMBOL_TRIANGLE_UP) ? NK_UP: NK_DOWN;
+        nk_triangle_from_direction(points, content, 0, 0, heading);
+        nk_fill_triangle(out, points[0].x, points[0].y, points[1].x, points[1].y,
+            points[2].x, points[2].y, foreground);
+    } break;
+    default:
+    case NK_SYMBOL_NONE:
+    case NK_SYMBOL_MAX: break;
+    }
+}
+NK_LIB int
+nk_button_behavior(nk_flags *state, struct nk_rect r,
+    const struct nk_input *i, enum nk_button_behavior behavior)
+{
+    int ret = 0;
+    nk_widget_state_reset(state);
+    if (!i) return 0;
+    if (nk_input_is_mouse_hovering_rect(i, r)) {
+        *state = NK_WIDGET_STATE_HOVERED;
+        if (nk_input_is_mouse_down(i, NK_BUTTON_LEFT))
+            *state = NK_WIDGET_STATE_ACTIVE;
+        if (nk_input_has_mouse_click_in_rect(i, NK_BUTTON_LEFT, r)) {
+            ret = (behavior != NK_BUTTON_DEFAULT) ?
+                nk_input_is_mouse_down(i, NK_BUTTON_LEFT):
+#ifdef NK_BUTTON_TRIGGER_ON_RELEASE
+                nk_input_is_mouse_released(i, NK_BUTTON_LEFT);
+#else
+                nk_input_is_mouse_pressed(i, NK_BUTTON_LEFT);
+#endif
+        }
+    }
+    if (*state & NK_WIDGET_STATE_HOVER && !nk_input_is_mouse_prev_hovering_rect(i, r))
+        *state |= NK_WIDGET_STATE_ENTERED;
+    else if (nk_input_is_mouse_prev_hovering_rect(i, r))
+        *state |= NK_WIDGET_STATE_LEFT;
+    return ret;
+}
+NK_LIB const struct nk_style_item*
+nk_draw_button(struct nk_command_buffer *out,
+    const struct nk_rect *bounds, nk_flags state,
+    const struct nk_style_button *style)
+{
+    const struct nk_style_item *background;
+    if (state & NK_WIDGET_STATE_HOVER)
+        background = &style->hover;
+    else if (state & NK_WIDGET_STATE_ACTIVED)
+        background = &style->active;
+    else background = &style->normal;
+
+    if (background->type == NK_STYLE_ITEM_IMAGE) {
+        nk_draw_image(out, *bounds, &background->data.image, nk_white);
+    } else {
+        nk_fill_rect(out, *bounds, style->rounding, background->data.color);
+        nk_stroke_rect(out, *bounds, style->rounding, style->border, style->border_color);
+    }
+    return background;
+}
+NK_LIB int
+nk_do_button(nk_flags *state, struct nk_command_buffer *out, struct nk_rect r,
+    const struct nk_style_button *style, const struct nk_input *in,
+    enum nk_button_behavior behavior, struct nk_rect *content)
+{
+    struct nk_rect bounds;
+    NK_ASSERT(style);
+    NK_ASSERT(state);
+    NK_ASSERT(out);
+    if (!out || !style)
+        return nk_false;
+
+    /* calculate button content space */
+    content->x = r.x + style->padding.x + style->border + style->rounding;
+    content->y = r.y + style->padding.y + style->border + style->rounding;
+    content->w = r.w - (2 * style->padding.x + style->border + style->rounding*2);
+    content->h = r.h - (2 * style->padding.y + style->border + style->rounding*2);
+
+    /* execute button behavior */
+    bounds.x = r.x - style->touch_padding.x;
+    bounds.y = r.y - style->touch_padding.y;
+    bounds.w = r.w + 2 * style->touch_padding.x;
+    bounds.h = r.h + 2 * style->touch_padding.y;
+    return nk_button_behavior(state, bounds, in, behavior);
+}
+NK_LIB void
+nk_draw_button_text(struct nk_command_buffer *out,
+    const struct nk_rect *bounds, const struct nk_rect *content, nk_flags state,
+    const struct nk_style_button *style, const char *txt, int len,
+    nk_flags text_alignment, const struct nk_user_font *font)
+{
+    struct nk_text text;
+    const struct nk_style_item *background;
+    background = nk_draw_button(out, bounds, state, style);
+
+    /* select correct colors/images */
+    if (background->type == NK_STYLE_ITEM_COLOR)
+        text.background = background->data.color;
+    else text.background = style->text_background;
+    if (state & NK_WIDGET_STATE_HOVER)
+        text.text = style->text_hover;
+    else if (state & NK_WIDGET_STATE_ACTIVED)
+        text.text = style->text_active;
+    else text.text = style->text_normal;
+
+    text.padding = nk_vec2(0,0);
+    nk_widget_text(out, *content, txt, len, &text, text_alignment, font);
+}
+NK_LIB int
+nk_do_button_text(nk_flags *state,
+    struct nk_command_buffer *out, struct nk_rect bounds,
+    const char *string, int len, nk_flags align, enum nk_button_behavior behavior,
+    const struct nk_style_button *style, const struct nk_input *in,
+    const struct nk_user_font *font)
+{
+    struct nk_rect content;
+    int ret = nk_false;
+
+    NK_ASSERT(state);
+    NK_ASSERT(style);
+    NK_ASSERT(out);
+    NK_ASSERT(string);
+    NK_ASSERT(font);
+    if (!out || !style || !font || !string)
+        return nk_false;
+
+    ret = nk_do_button(state, out, bounds, style, in, behavior, &content);
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_button_text(out, &bounds, &content, *state, style, string, len, align, font);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+    return ret;
+}
+NK_LIB void
+nk_draw_button_symbol(struct nk_command_buffer *out,
+    const struct nk_rect *bounds, const struct nk_rect *content,
+    nk_flags state, const struct nk_style_button *style,
+    enum nk_symbol_type type, const struct nk_user_font *font)
+{
+    struct nk_color sym, bg;
+    const struct nk_style_item *background;
+
+    /* select correct colors/images */
+    background = nk_draw_button(out, bounds, state, style);
+    if (background->type == NK_STYLE_ITEM_COLOR)
+        bg = background->data.color;
+    else bg = style->text_background;
+
+    if (state & NK_WIDGET_STATE_HOVER)
+        sym = style->text_hover;
+    else if (state & NK_WIDGET_STATE_ACTIVED)
+        sym = style->text_active;
+    else sym = style->text_normal;
+    nk_draw_symbol(out, type, *content, bg, sym, 1, font);
+}
+NK_LIB int
+nk_do_button_symbol(nk_flags *state,
+    struct nk_command_buffer *out, struct nk_rect bounds,
+    enum nk_symbol_type symbol, enum nk_button_behavior behavior,
+    const struct nk_style_button *style, const struct nk_input *in,
+    const struct nk_user_font *font)
+{
+    int ret;
+    struct nk_rect content;
+
+    NK_ASSERT(state);
+    NK_ASSERT(style);
+    NK_ASSERT(font);
+    NK_ASSERT(out);
+    if (!out || !style || !font || !state)
+        return nk_false;
+
+    ret = nk_do_button(state, out, bounds, style, in, behavior, &content);
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_button_symbol(out, &bounds, &content, *state, style, symbol, font);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+    return ret;
+}
+NK_LIB void
+nk_draw_button_image(struct nk_command_buffer *out,
+    const struct nk_rect *bounds, const struct nk_rect *content,
+    nk_flags state, const struct nk_style_button *style, const struct nk_image *img)
+{
+    nk_draw_button(out, bounds, state, style);
+    nk_draw_image(out, *content, img, nk_white);
+}
+NK_LIB int
+nk_do_button_image(nk_flags *state,
+    struct nk_command_buffer *out, struct nk_rect bounds,
+    struct nk_image img, enum nk_button_behavior b,
+    const struct nk_style_button *style, const struct nk_input *in)
+{
+    int ret;
+    struct nk_rect content;
+
+    NK_ASSERT(state);
+    NK_ASSERT(style);
+    NK_ASSERT(out);
+    if (!out || !style || !state)
+        return nk_false;
+
+    ret = nk_do_button(state, out, bounds, style, in, b, &content);
+    content.x += style->image_padding.x;
+    content.y += style->image_padding.y;
+    content.w -= 2 * style->image_padding.x;
+    content.h -= 2 * style->image_padding.y;
+
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_button_image(out, &bounds, &content, *state, style, &img);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+    return ret;
+}
+NK_LIB void
+nk_draw_button_text_symbol(struct nk_command_buffer *out,
+    const struct nk_rect *bounds, const struct nk_rect *label,
+    const struct nk_rect *symbol, nk_flags state, const struct nk_style_button *style,
+    const char *str, int len, enum nk_symbol_type type,
+    const struct nk_user_font *font)
+{
+    struct nk_color sym;
+    struct nk_text text;
+    const struct nk_style_item *background;
+
+    /* select correct background colors/images */
+    background = nk_draw_button(out, bounds, state, style);
+    if (background->type == NK_STYLE_ITEM_COLOR)
+        text.background = background->data.color;
+    else text.background = style->text_background;
+
+    /* select correct text colors */
+    if (state & NK_WIDGET_STATE_HOVER) {
+        sym = style->text_hover;
+        text.text = style->text_hover;
+    } else if (state & NK_WIDGET_STATE_ACTIVED) {
+        sym = style->text_active;
+        text.text = style->text_active;
+    } else {
+        sym = style->text_normal;
+        text.text = style->text_normal;
+    }
+
+    text.padding = nk_vec2(0,0);
+    nk_draw_symbol(out, type, *symbol, style->text_background, sym, 0, font);
+    nk_widget_text(out, *label, str, len, &text, NK_TEXT_CENTERED, font);
+}
+NK_LIB int
+nk_do_button_text_symbol(nk_flags *state,
+    struct nk_command_buffer *out, struct nk_rect bounds,
+    enum nk_symbol_type symbol, const char *str, int len, nk_flags align,
+    enum nk_button_behavior behavior, const struct nk_style_button *style,
+    const struct nk_user_font *font, const struct nk_input *in)
+{
+    int ret;
+    struct nk_rect tri = {0,0,0,0};
+    struct nk_rect content;
+
+    NK_ASSERT(style);
+    NK_ASSERT(out);
+    NK_ASSERT(font);
+    if (!out || !style || !font)
+        return nk_false;
+
+    ret = nk_do_button(state, out, bounds, style, in, behavior, &content);
+    tri.y = content.y + (content.h/2) - font->height/2;
+    tri.w = font->height; tri.h = font->height;
+    if (align & NK_TEXT_ALIGN_LEFT) {
+        tri.x = (content.x + content.w) - (2 * style->padding.x + tri.w);
+        tri.x = NK_MAX(tri.x, 0);
+    } else tri.x = content.x + 2 * style->padding.x;
+
+    /* draw button */
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_button_text_symbol(out, &bounds, &content, &tri,
+        *state, style, str, len, symbol, font);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+    return ret;
+}
+NK_LIB void
+nk_draw_button_text_image(struct nk_command_buffer *out,
+    const struct nk_rect *bounds, const struct nk_rect *label,
+    const struct nk_rect *image, nk_flags state, const struct nk_style_button *style,
+    const char *str, int len, const struct nk_user_font *font,
+    const struct nk_image *img)
+{
+    struct nk_text text;
+    const struct nk_style_item *background;
+    background = nk_draw_button(out, bounds, state, style);
+
+    /* select correct colors */
+    if (background->type == NK_STYLE_ITEM_COLOR)
+        text.background = background->data.color;
+    else text.background = style->text_background;
+    if (state & NK_WIDGET_STATE_HOVER)
+        text.text = style->text_hover;
+    else if (state & NK_WIDGET_STATE_ACTIVED)
+        text.text = style->text_active;
+    else text.text = style->text_normal;
+
+    text.padding = nk_vec2(0,0);
+    nk_widget_text(out, *label, str, len, &text, NK_TEXT_CENTERED, font);
+    nk_draw_image(out, *image, img, nk_white);
+}
+NK_LIB int
+nk_do_button_text_image(nk_flags *state,
+    struct nk_command_buffer *out, struct nk_rect bounds,
+    struct nk_image img, const char* str, int len, nk_flags align,
+    enum nk_button_behavior behavior, const struct nk_style_button *style,
+    const struct nk_user_font *font, const struct nk_input *in)
+{
+    int ret;
+    struct nk_rect icon;
+    struct nk_rect content;
+
+    NK_ASSERT(style);
+    NK_ASSERT(state);
+    NK_ASSERT(font);
+    NK_ASSERT(out);
+    if (!out || !font || !style || !str)
+        return nk_false;
+
+    ret = nk_do_button(state, out, bounds, style, in, behavior, &content);
+    icon.y = bounds.y + style->padding.y;
+    icon.w = icon.h = bounds.h - 2 * style->padding.y;
+    if (align & NK_TEXT_ALIGN_LEFT) {
+        icon.x = (bounds.x + bounds.w) - (2 * style->padding.x + icon.w);
+        icon.x = NK_MAX(icon.x, 0);
+    } else icon.x = bounds.x + 2 * style->padding.x;
+
+    icon.x += style->image_padding.x;
+    icon.y += style->image_padding.y;
+    icon.w -= 2 * style->image_padding.x;
+    icon.h -= 2 * style->image_padding.y;
+
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_button_text_image(out, &bounds, &content, &icon, *state, style, str, len, font, &img);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+    return ret;
+}
+NK_API void
+nk_button_set_behavior(struct nk_context *ctx, enum nk_button_behavior behavior)
+{
+    NK_ASSERT(ctx);
+    if (!ctx) return;
+    ctx->button_behavior = behavior;
+}
+NK_API int
+nk_button_push_behavior(struct nk_context *ctx, enum nk_button_behavior behavior)
+{
+    struct nk_config_stack_button_behavior *button_stack;
+    struct nk_config_stack_button_behavior_element *element;
+
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+
+    button_stack = &ctx->stacks.button_behaviors;
+    NK_ASSERT(button_stack->head < (int)NK_LEN(button_stack->elements));
+    if (button_stack->head >= (int)NK_LEN(button_stack->elements))
+        return 0;
+
+    element = &button_stack->elements[button_stack->head++];
+    element->address = &ctx->button_behavior;
+    element->old_value = ctx->button_behavior;
+    ctx->button_behavior = behavior;
+    return 1;
+}
+NK_API int
+nk_button_pop_behavior(struct nk_context *ctx)
+{
+    struct nk_config_stack_button_behavior *button_stack;
+    struct nk_config_stack_button_behavior_element *element;
+
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+
+    button_stack = &ctx->stacks.button_behaviors;
+    NK_ASSERT(button_stack->head > 0);
+    if (button_stack->head < 1)
+        return 0;
+
+    element = &button_stack->elements[--button_stack->head];
+    *element->address = element->old_value;
+    return 1;
+}
+NK_API int
+nk_button_text_styled(struct nk_context *ctx,
+    const struct nk_style_button *style, const char *title, int len)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_input *in;
+
+    struct nk_rect bounds;
+    enum nk_widget_layout_states state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(style);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!style || !ctx || !ctx->current || !ctx->current->layout) return 0;
+
+    win = ctx->current;
+    layout = win->layout;
+    state = nk_widget(&bounds, ctx);
+
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    return nk_do_button_text(&ctx->last_widget_state, &win->buffer, bounds,
+                    title, len, style->text_alignment, ctx->button_behavior,
+                    style, in, ctx->style.font);
+}
+NK_API int
+nk_button_text(struct nk_context *ctx, const char *title, int len)
+{
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+    return nk_button_text_styled(ctx, &ctx->style.button, title, len);
+}
+NK_API int nk_button_label_styled(struct nk_context *ctx,
+    const struct nk_style_button *style, const char *title)
+{
+    return nk_button_text_styled(ctx, style, title, nk_strlen(title));
+}
+NK_API int nk_button_label(struct nk_context *ctx, const char *title)
+{
+    return nk_button_text(ctx, title, nk_strlen(title));
+}
+NK_API int
+nk_button_color(struct nk_context *ctx, struct nk_color color)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_input *in;
+    struct nk_style_button button;
+
+    int ret = 0;
+    struct nk_rect bounds;
+    struct nk_rect content;
+    enum nk_widget_layout_states state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    layout = win->layout;
+
+    state = nk_widget(&bounds, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+
+    button = ctx->style.button;
+    button.normal = nk_style_item_color(color);
+    button.hover = nk_style_item_color(color);
+    button.active = nk_style_item_color(color);
+    ret = nk_do_button(&ctx->last_widget_state, &win->buffer, bounds,
+                &button, in, ctx->button_behavior, &content);
+    nk_draw_button(&win->buffer, &bounds, ctx->last_widget_state, &button);
+    return ret;
+}
+NK_API int
+nk_button_symbol_styled(struct nk_context *ctx,
+    const struct nk_style_button *style, enum nk_symbol_type symbol)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_input *in;
+
+    struct nk_rect bounds;
+    enum nk_widget_layout_states state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    layout = win->layout;
+    state = nk_widget(&bounds, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    return nk_do_button_symbol(&ctx->last_widget_state, &win->buffer, bounds,
+            symbol, ctx->button_behavior, style, in, ctx->style.font);
+}
+NK_API int
+nk_button_symbol(struct nk_context *ctx, enum nk_symbol_type symbol)
+{
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+    return nk_button_symbol_styled(ctx, &ctx->style.button, symbol);
+}
+NK_API int
+nk_button_image_styled(struct nk_context *ctx, const struct nk_style_button *style,
+    struct nk_image img)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_input *in;
+
+    struct nk_rect bounds;
+    enum nk_widget_layout_states state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    layout = win->layout;
+
+    state = nk_widget(&bounds, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    return nk_do_button_image(&ctx->last_widget_state, &win->buffer, bounds,
+                img, ctx->button_behavior, style, in);
+}
+NK_API int
+nk_button_image(struct nk_context *ctx, struct nk_image img)
+{
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+    return nk_button_image_styled(ctx, &ctx->style.button, img);
+}
+NK_API int
+nk_button_symbol_text_styled(struct nk_context *ctx,
+    const struct nk_style_button *style, enum nk_symbol_type symbol,
+    const char *text, int len, nk_flags align)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_input *in;
+
+    struct nk_rect bounds;
+    enum nk_widget_layout_states state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    layout = win->layout;
+
+    state = nk_widget(&bounds, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    return nk_do_button_text_symbol(&ctx->last_widget_state, &win->buffer, bounds,
+                symbol, text, len, align, ctx->button_behavior,
+                style, ctx->style.font, in);
+}
+NK_API int
+nk_button_symbol_text(struct nk_context *ctx, enum nk_symbol_type symbol,
+    const char* text, int len, nk_flags align)
+{
+    NK_ASSERT(ctx);
+    if (!ctx) return 0;
+    return nk_button_symbol_text_styled(ctx, &ctx->style.button, symbol, text, len, align);
+}
+NK_API int nk_button_symbol_label(struct nk_context *ctx, enum nk_symbol_type symbol,
+    const char *label, nk_flags align)
+{
+    return nk_button_symbol_text(ctx, symbol, label, nk_strlen(label), align);
+}
+NK_API int nk_button_symbol_label_styled(struct nk_context *ctx,
+    const struct nk_style_button *style, enum nk_symbol_type symbol,
+    const char *title, nk_flags align)
+{
+    return nk_button_symbol_text_styled(ctx, style, symbol, title, nk_strlen(title), align);
+}
+NK_API int
+nk_button_image_text_styled(struct nk_context *ctx,
+    const struct nk_style_button *style, struct nk_image img, const char *text,
+    int len, nk_flags align)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_input *in;
+
+    struct nk_rect bounds;
+    enum nk_widget_layout_states state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    layout = win->layout;
+
+    state = nk_widget(&bounds, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    return nk_do_button_text_image(&ctx->last_widget_state, &win->buffer,
+            bounds, img, text, len, align, ctx->button_behavior,
+            style, ctx->style.font, in);
+}
+NK_API int
+nk_button_image_text(struct nk_context *ctx, struct nk_image img,
+    const char *text, int len, nk_flags align)
+{
+    return nk_button_image_text_styled(ctx, &ctx->style.button,img, text, len, align);
+}
+NK_API int nk_button_image_label(struct nk_context *ctx, struct nk_image img,
+    const char *label, nk_flags align)
+{
+    return nk_button_image_text(ctx, img, label, nk_strlen(label), align);
+}
+NK_API int nk_button_image_label_styled(struct nk_context *ctx,
+    const struct nk_style_button *style, struct nk_image img,
+    const char *label, nk_flags text_alignment)
+{
+    return nk_button_image_text_styled(ctx, style, img, label, nk_strlen(label), text_alignment);
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              TOGGLE
+ *
+ * ===============================================================*/
+NK_LIB int
+nk_toggle_behavior(const struct nk_input *in, struct nk_rect select,
+    nk_flags *state, int active)
+{
+    nk_widget_state_reset(state);
+    if (nk_button_behavior(state, select, in, NK_BUTTON_DEFAULT)) {
+        *state = NK_WIDGET_STATE_ACTIVE;
+        active = !active;
+    }
+    if (*state & NK_WIDGET_STATE_HOVER && !nk_input_is_mouse_prev_hovering_rect(in, select))
+        *state |= NK_WIDGET_STATE_ENTERED;
+    else if (nk_input_is_mouse_prev_hovering_rect(in, select))
+        *state |= NK_WIDGET_STATE_LEFT;
+    return active;
+}
+NK_LIB void
+nk_draw_checkbox(struct nk_command_buffer *out,
+    nk_flags state, const struct nk_style_toggle *style, int active,
+    const struct nk_rect *label, const struct nk_rect *selector,
+    const struct nk_rect *cursors, const char *string, int len,
+    const struct nk_user_font *font)
+{
+    const struct nk_style_item *background;
+    const struct nk_style_item *cursor;
+    struct nk_text text;
+
+    /* select correct colors/images */
+    if (state & NK_WIDGET_STATE_HOVER) {
+        background = &style->hover;
+        cursor = &style->cursor_hover;
+        text.text = style->text_hover;
+    } else if (state & NK_WIDGET_STATE_ACTIVED) {
+        background = &style->hover;
+        cursor = &style->cursor_hover;
+        text.text = style->text_active;
+    } else {
+        background = &style->normal;
+        cursor = &style->cursor_normal;
+        text.text = style->text_normal;
+    }
+
+    /* draw background and cursor */
+    if (background->type == NK_STYLE_ITEM_COLOR) {
+        nk_fill_rect(out, *selector, 0, style->border_color);
+        nk_fill_rect(out, nk_shrink_rect(*selector, style->border), 0, background->data.color);
+    } else nk_draw_image(out, *selector, &background->data.image, nk_white);
+    if (active) {
+        if (cursor->type == NK_STYLE_ITEM_IMAGE)
+            nk_draw_image(out, *cursors, &cursor->data.image, nk_white);
+        else nk_fill_rect(out, *cursors, 0, cursor->data.color);
+    }
+
+    text.padding.x = 0;
+    text.padding.y = 0;
+    text.background = style->text_background;
+    nk_widget_text(out, *label, string, len, &text, NK_TEXT_LEFT, font);
+}
+NK_LIB void
+nk_draw_option(struct nk_command_buffer *out,
+    nk_flags state, const struct nk_style_toggle *style, int active,
+    const struct nk_rect *label, const struct nk_rect *selector,
+    const struct nk_rect *cursors, const char *string, int len,
+    const struct nk_user_font *font)
+{
+    const struct nk_style_item *background;
+    const struct nk_style_item *cursor;
+    struct nk_text text;
+
+    /* select correct colors/images */
+    if (state & NK_WIDGET_STATE_HOVER) {
+        background = &style->hover;
+        cursor = &style->cursor_hover;
+        text.text = style->text_hover;
+    } else if (state & NK_WIDGET_STATE_ACTIVED) {
+        background = &style->hover;
+        cursor = &style->cursor_hover;
+        text.text = style->text_active;
+    } else {
+        background = &style->normal;
+        cursor = &style->cursor_normal;
+        text.text = style->text_normal;
+    }
+
+    /* draw background and cursor */
+    if (background->type == NK_STYLE_ITEM_COLOR) {
+        nk_fill_circle(out, *selector, style->border_color);
+        nk_fill_circle(out, nk_shrink_rect(*selector, style->border), background->data.color);
+    } else nk_draw_image(out, *selector, &background->data.image, nk_white);
+    if (active) {
+        if (cursor->type == NK_STYLE_ITEM_IMAGE)
+            nk_draw_image(out, *cursors, &cursor->data.image, nk_white);
+        else nk_fill_circle(out, *cursors, cursor->data.color);
+    }
+
+    text.padding.x = 0;
+    text.padding.y = 0;
+    text.background = style->text_background;
+    nk_widget_text(out, *label, string, len, &text, NK_TEXT_LEFT, font);
+}
+NK_LIB int
+nk_do_toggle(nk_flags *state,
+    struct nk_command_buffer *out, struct nk_rect r,
+    int *active, const char *str, int len, enum nk_toggle_type type,
+    const struct nk_style_toggle *style, const struct nk_input *in,
+    const struct nk_user_font *font)
+{
+    int was_active;
+    struct nk_rect bounds;
+    struct nk_rect select;
+    struct nk_rect cursor;
+    struct nk_rect label;
+
+    NK_ASSERT(style);
+    NK_ASSERT(out);
+    NK_ASSERT(font);
+    if (!out || !style || !font || !active)
+        return 0;
+
+    r.w = NK_MAX(r.w, font->height + 2 * style->padding.x);
+    r.h = NK_MAX(r.h, font->height + 2 * style->padding.y);
+
+    /* add additional touch padding for touch screen devices */
+    bounds.x = r.x - style->touch_padding.x;
+    bounds.y = r.y - style->touch_padding.y;
+    bounds.w = r.w + 2 * style->touch_padding.x;
+    bounds.h = r.h + 2 * style->touch_padding.y;
+
+    /* calculate the selector space */
+    select.w = font->height;
+    select.h = select.w;
+    select.y = r.y + r.h/2.0f - select.h/2.0f;
+    select.x = r.x;
+
+    /* calculate the bounds of the cursor inside the selector */
+    cursor.x = select.x + style->padding.x + style->border;
+    cursor.y = select.y + style->padding.y + style->border;
+    cursor.w = select.w - (2 * style->padding.x + 2 * style->border);
+    cursor.h = select.h - (2 * style->padding.y + 2 * style->border);
+
+    /* label behind the selector */
+    label.x = select.x + select.w + style->spacing;
+    label.y = select.y;
+    label.w = NK_MAX(r.x + r.w, label.x) - label.x;
+    label.h = select.w;
+
+    /* update selector */
+    was_active = *active;
+    *active = nk_toggle_behavior(in, bounds, state, *active);
+
+    /* draw selector */
+    if (style->draw_begin)
+        style->draw_begin(out, style->userdata);
+    if (type == NK_TOGGLE_CHECK) {
+        nk_draw_checkbox(out, *state, style, *active, &label, &select, &cursor, str, len, font);
+    } else {
+        nk_draw_option(out, *state, style, *active, &label, &select, &cursor, str, len, font);
+    }
+    if (style->draw_end)
+        style->draw_end(out, style->userdata);
+    return (was_active != *active);
+}
+/*----------------------------------------------------------------
+ *
+ *                          CHECKBOX
+ *
+ * --------------------------------------------------------------*/
+NK_API int
+nk_check_text(struct nk_context *ctx, const char *text, int len, int active)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_input *in;
+    const struct nk_style *style;
+
+    struct nk_rect bounds;
+    enum nk_widget_layout_states state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return active;
+
+    win = ctx->current;
+    style = &ctx->style;
+    layout = win->layout;
+
+    state = nk_widget(&bounds, ctx);
+    if (!state) return active;
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    nk_do_toggle(&ctx->last_widget_state, &win->buffer, bounds, &active,
+        text, len, NK_TOGGLE_CHECK, &style->checkbox, in, style->font);
+    return active;
+}
+NK_API unsigned int
+nk_check_flags_text(struct nk_context *ctx, const char *text, int len,
+    unsigned int flags, unsigned int value)
+{
+    int old_active;
+    NK_ASSERT(ctx);
+    NK_ASSERT(text);
+    if (!ctx || !text) return flags;
+    old_active = (int)((flags & value) & value);
+    if (nk_check_text(ctx, text, len, old_active))
+        flags |= value;
+    else flags &= ~value;
+    return flags;
+}
+NK_API int
+nk_checkbox_text(struct nk_context *ctx, const char *text, int len, int *active)
+{
+    int old_val;
+    NK_ASSERT(ctx);
+    NK_ASSERT(text);
+    NK_ASSERT(active);
+    if (!ctx || !text || !active) return 0;
+    old_val = *active;
+    *active = nk_check_text(ctx, text, len, *active);
+    return old_val != *active;
+}
+NK_API int
+nk_checkbox_flags_text(struct nk_context *ctx, const char *text, int len,
+    unsigned int *flags, unsigned int value)
+{
+    int active;
+    NK_ASSERT(ctx);
+    NK_ASSERT(text);
+    NK_ASSERT(flags);
+    if (!ctx || !text || !flags) return 0;
+
+    active = (int)((*flags & value) & value);
+    if (nk_checkbox_text(ctx, text, len, &active)) {
+        if (active) *flags |= value;
+        else *flags &= ~value;
+        return 1;
+    }
+    return 0;
+}
+NK_API int nk_check_label(struct nk_context *ctx, const char *label, int active)
+{
+    return nk_check_text(ctx, label, nk_strlen(label), active);
+}
+NK_API unsigned int nk_check_flags_label(struct nk_context *ctx, const char *label,
+    unsigned int flags, unsigned int value)
+{
+    return nk_check_flags_text(ctx, label, nk_strlen(label), flags, value);
+}
+NK_API int nk_checkbox_label(struct nk_context *ctx, const char *label, int *active)
+{
+    return nk_checkbox_text(ctx, label, nk_strlen(label), active);
+}
+NK_API int nk_checkbox_flags_label(struct nk_context *ctx, const char *label,
+    unsigned int *flags, unsigned int value)
+{
+    return nk_checkbox_flags_text(ctx, label, nk_strlen(label), flags, value);
+}
+/*----------------------------------------------------------------
+ *
+ *                          OPTION
+ *
+ * --------------------------------------------------------------*/
+NK_API int
+nk_option_text(struct nk_context *ctx, const char *text, int len, int is_active)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_input *in;
+    const struct nk_style *style;
+
+    struct nk_rect bounds;
+    enum nk_widget_layout_states state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return is_active;
+
+    win = ctx->current;
+    style = &ctx->style;
+    layout = win->layout;
+
+    state = nk_widget(&bounds, ctx);
+    if (!state) return (int)state;
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    nk_do_toggle(&ctx->last_widget_state, &win->buffer, bounds, &is_active,
+        text, len, NK_TOGGLE_OPTION, &style->option, in, style->font);
+    return is_active;
+}
+NK_API int
+nk_radio_text(struct nk_context *ctx, const char *text, int len, int *active)
+{
+    int old_value;
+    NK_ASSERT(ctx);
+    NK_ASSERT(text);
+    NK_ASSERT(active);
+    if (!ctx || !text || !active) return 0;
+    old_value = *active;
+    *active = nk_option_text(ctx, text, len, old_value);
+    return old_value != *active;
+}
+NK_API int
+nk_option_label(struct nk_context *ctx, const char *label, int active)
+{
+    return nk_option_text(ctx, label, nk_strlen(label), active);
+}
+NK_API int
+nk_radio_label(struct nk_context *ctx, const char *label, int *active)
+{
+    return nk_radio_text(ctx, label, nk_strlen(label), active);
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              SELECTABLE
+ *
+ * ===============================================================*/
+NK_LIB void
+nk_draw_selectable(struct nk_command_buffer *out,
+    nk_flags state, const struct nk_style_selectable *style, int active,
+    const struct nk_rect *bounds,
+    const struct nk_rect *icon, const struct nk_image *img, enum nk_symbol_type sym,
+    const char *string, int len, nk_flags align, const struct nk_user_font *font)
+{
+    const struct nk_style_item *background;
+    struct nk_text text;
+    text.padding = style->padding;
+
+    /* select correct colors/images */
+    if (!active) {
+        if (state & NK_WIDGET_STATE_ACTIVED) {
+            background = &style->pressed;
+            text.text = style->text_pressed;
+        } else if (state & NK_WIDGET_STATE_HOVER) {
+            background = &style->hover;
+            text.text = style->text_hover;
+        } else {
+            background = &style->normal;
+            text.text = style->text_normal;
+        }
+    } else {
+        if (state & NK_WIDGET_STATE_ACTIVED) {
+            background = &style->pressed_active;
+            text.text = style->text_pressed_active;
+        } else if (state & NK_WIDGET_STATE_HOVER) {
+            background = &style->hover_active;
+            text.text = style->text_hover_active;
+        } else {
+            background = &style->normal_active;
+            text.text = style->text_normal_active;
+        }
+    }
+    /* draw selectable background and text */
+    if (background->type == NK_STYLE_ITEM_IMAGE) {
+        nk_draw_image(out, *bounds, &background->data.image, nk_white);
+        text.background = nk_rgba(0,0,0,0);
+    } else {
+        nk_fill_rect(out, *bounds, style->rounding, background->data.color);
+        text.background = background->data.color;
+    }
+    if (icon) {
+        if (img) nk_draw_image(out, *icon, img, nk_white);
+        else nk_draw_symbol(out, sym, *icon, text.background, text.text, 1, font);
+    }
+    nk_widget_text(out, *bounds, string, len, &text, align, font);
+}
+NK_LIB int
+nk_do_selectable(nk_flags *state, struct nk_command_buffer *out,
+    struct nk_rect bounds, const char *str, int len, nk_flags align, int *value,
+    const struct nk_style_selectable *style, const struct nk_input *in,
+    const struct nk_user_font *font)
+{
+    int old_value;
+    struct nk_rect touch;
+
+    NK_ASSERT(state);
+    NK_ASSERT(out);
+    NK_ASSERT(str);
+    NK_ASSERT(len);
+    NK_ASSERT(value);
+    NK_ASSERT(style);
+    NK_ASSERT(font);
+
+    if (!state || !out || !str || !len || !value || !style || !font) return 0;
+    old_value = *value;
+
+    /* remove padding */
+    touch.x = bounds.x - style->touch_padding.x;
+    touch.y = bounds.y - style->touch_padding.y;
+    touch.w = bounds.w + style->touch_padding.x * 2;
+    touch.h = bounds.h + style->touch_padding.y * 2;
+
+    /* update button */
+    if (nk_button_behavior(state, touch, in, NK_BUTTON_DEFAULT))
+        *value = !(*value);
+
+    /* draw selectable */
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_selectable(out, *state, style, *value, &bounds, 0,0,NK_SYMBOL_NONE, str, len, align, font);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+    return old_value != *value;
+}
+NK_LIB int
+nk_do_selectable_image(nk_flags *state, struct nk_command_buffer *out,
+    struct nk_rect bounds, const char *str, int len, nk_flags align, int *value,
+    const struct nk_image *img, const struct nk_style_selectable *style,
+    const struct nk_input *in, const struct nk_user_font *font)
+{
+    int old_value;
+    struct nk_rect touch;
+    struct nk_rect icon;
+
+    NK_ASSERT(state);
+    NK_ASSERT(out);
+    NK_ASSERT(str);
+    NK_ASSERT(len);
+    NK_ASSERT(value);
+    NK_ASSERT(style);
+    NK_ASSERT(font);
+
+    if (!state || !out || !str || !len || !value || !style || !font) return 0;
+    old_value = *value;
+
+    /* toggle behavior */
+    touch.x = bounds.x - style->touch_padding.x;
+    touch.y = bounds.y - style->touch_padding.y;
+    touch.w = bounds.w + style->touch_padding.x * 2;
+    touch.h = bounds.h + style->touch_padding.y * 2;
+    if (nk_button_behavior(state, touch, in, NK_BUTTON_DEFAULT))
+        *value = !(*value);
+
+    icon.y = bounds.y + style->padding.y;
+    icon.w = icon.h = bounds.h - 2 * style->padding.y;
+    if (align & NK_TEXT_ALIGN_LEFT) {
+        icon.x = (bounds.x + bounds.w) - (2 * style->padding.x + icon.w);
+        icon.x = NK_MAX(icon.x, 0);
+    } else icon.x = bounds.x + 2 * style->padding.x;
+
+    icon.x += style->image_padding.x;
+    icon.y += style->image_padding.y;
+    icon.w -= 2 * style->image_padding.x;
+    icon.h -= 2 * style->image_padding.y;
+
+    /* draw selectable */
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_selectable(out, *state, style, *value, &bounds, &icon, img, NK_SYMBOL_NONE, str, len, align, font);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+    return old_value != *value;
+}
+NK_LIB int
+nk_do_selectable_symbol(nk_flags *state, struct nk_command_buffer *out,
+    struct nk_rect bounds, const char *str, int len, nk_flags align, int *value,
+    enum nk_symbol_type sym, const struct nk_style_selectable *style,
+    const struct nk_input *in, const struct nk_user_font *font)
+{
+    int old_value;
+    struct nk_rect touch;
+    struct nk_rect icon;
+
+    NK_ASSERT(state);
+    NK_ASSERT(out);
+    NK_ASSERT(str);
+    NK_ASSERT(len);
+    NK_ASSERT(value);
+    NK_ASSERT(style);
+    NK_ASSERT(font);
+
+    if (!state || !out || !str || !len || !value || !style || !font) return 0;
+    old_value = *value;
+
+    /* toggle behavior */
+    touch.x = bounds.x - style->touch_padding.x;
+    touch.y = bounds.y - style->touch_padding.y;
+    touch.w = bounds.w + style->touch_padding.x * 2;
+    touch.h = bounds.h + style->touch_padding.y * 2;
+    if (nk_button_behavior(state, touch, in, NK_BUTTON_DEFAULT))
+        *value = !(*value);
+
+    icon.y = bounds.y + style->padding.y;
+    icon.w = icon.h = bounds.h - 2 * style->padding.y;
+    if (align & NK_TEXT_ALIGN_LEFT) {
+        icon.x = (bounds.x + bounds.w) - (2 * style->padding.x + icon.w);
+        icon.x = NK_MAX(icon.x, 0);
+    } else icon.x = bounds.x + 2 * style->padding.x;
+
+    icon.x += style->image_padding.x;
+    icon.y += style->image_padding.y;
+    icon.w -= 2 * style->image_padding.x;
+    icon.h -= 2 * style->image_padding.y;
+
+    /* draw selectable */
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_selectable(out, *state, style, *value, &bounds, &icon, 0, sym, str, len, align, font);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+    return old_value != *value;
+}
+
+NK_API int
+nk_selectable_text(struct nk_context *ctx, const char *str, int len,
+    nk_flags align, int *value)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_input *in;
+    const struct nk_style *style;
+
+    enum nk_widget_layout_states state;
+    struct nk_rect bounds;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(value);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout || !value)
+        return 0;
+
+    win = ctx->current;
+    layout = win->layout;
+    style = &ctx->style;
+
+    state = nk_widget(&bounds, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    return nk_do_selectable(&ctx->last_widget_state, &win->buffer, bounds,
+                str, len, align, value, &style->selectable, in, style->font);
+}
+NK_API int
+nk_selectable_image_text(struct nk_context *ctx, struct nk_image img,
+    const char *str, int len, nk_flags align, int *value)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_input *in;
+    const struct nk_style *style;
+
+    enum nk_widget_layout_states state;
+    struct nk_rect bounds;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(value);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout || !value)
+        return 0;
+
+    win = ctx->current;
+    layout = win->layout;
+    style = &ctx->style;
+
+    state = nk_widget(&bounds, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    return nk_do_selectable_image(&ctx->last_widget_state, &win->buffer, bounds,
+                str, len, align, value, &img, &style->selectable, in, style->font);
+}
+NK_API int
+nk_selectable_symbol_text(struct nk_context *ctx, enum nk_symbol_type sym,
+    const char *str, int len, nk_flags align, int *value)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_input *in;
+    const struct nk_style *style;
+
+    enum nk_widget_layout_states state;
+    struct nk_rect bounds;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(value);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout || !value)
+        return 0;
+
+    win = ctx->current;
+    layout = win->layout;
+    style = &ctx->style;
+
+    state = nk_widget(&bounds, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    return nk_do_selectable_symbol(&ctx->last_widget_state, &win->buffer, bounds,
+                str, len, align, value, sym, &style->selectable, in, style->font);
+}
+NK_API int
+nk_selectable_symbol_label(struct nk_context *ctx, enum nk_symbol_type sym,
+    const char *title, nk_flags align, int *value)
+{
+    return nk_selectable_symbol_text(ctx, sym, title, nk_strlen(title), align, value);
+}
+NK_API int nk_select_text(struct nk_context *ctx, const char *str, int len,
+    nk_flags align, int value)
+{
+    nk_selectable_text(ctx, str, len, align, &value);return value;
+}
+NK_API int nk_selectable_label(struct nk_context *ctx, const char *str, nk_flags align, int *value)
+{
+    return nk_selectable_text(ctx, str, nk_strlen(str), align, value);
+}
+NK_API int nk_selectable_image_label(struct nk_context *ctx,struct nk_image img,
+    const char *str, nk_flags align, int *value)
+{
+    return nk_selectable_image_text(ctx, img, str, nk_strlen(str), align, value);
+}
+NK_API int nk_select_label(struct nk_context *ctx, const char *str, nk_flags align, int value)
+{
+    nk_selectable_text(ctx, str, nk_strlen(str), align, &value);return value;
+}
+NK_API int nk_select_image_label(struct nk_context *ctx, struct nk_image img,
+    const char *str, nk_flags align, int value)
+{
+    nk_selectable_image_text(ctx, img, str, nk_strlen(str), align, &value);return value;
+}
+NK_API int nk_select_image_text(struct nk_context *ctx, struct nk_image img,
+    const char *str, int len, nk_flags align, int value)
+{
+    nk_selectable_image_text(ctx, img, str, len, align, &value);return value;
+}
+NK_API int
+nk_select_symbol_text(struct nk_context *ctx, enum nk_symbol_type sym,
+    const char *title, int title_len, nk_flags align, int value)
+{
+    nk_selectable_symbol_text(ctx, sym, title, title_len, align, &value);return value;
+}
+NK_API int
+nk_select_symbol_label(struct nk_context *ctx, enum nk_symbol_type sym,
+    const char *title, nk_flags align, int value)
+{
+    return nk_select_symbol_text(ctx, sym, title, nk_strlen(title), align, value);
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              SLIDER
+ *
+ * ===============================================================*/
+NK_LIB float
+nk_slider_behavior(nk_flags *state, struct nk_rect *logical_cursor,
+    struct nk_rect *visual_cursor, struct nk_input *in,
+    struct nk_rect bounds, float slider_min, float slider_max, float slider_value,
+    float slider_step, float slider_steps)
+{
+    int left_mouse_down;
+    int left_mouse_click_in_cursor;
+
+    /* check if visual cursor is being dragged */
+    nk_widget_state_reset(state);
+    left_mouse_down = in && in->mouse.buttons[NK_BUTTON_LEFT].down;
+    left_mouse_click_in_cursor = in && nk_input_has_mouse_click_down_in_rect(in,
+            NK_BUTTON_LEFT, *visual_cursor, nk_true);
+
+    if (left_mouse_down && left_mouse_click_in_cursor) {
+        float ratio = 0;
+        const float d = in->mouse.pos.x - (visual_cursor->x+visual_cursor->w*0.5f);
+        const float pxstep = bounds.w / slider_steps;
+
+        /* only update value if the next slider step is reached */
+        *state = NK_WIDGET_STATE_ACTIVE;
+        if (NK_ABS(d) >= pxstep) {
+            const float steps = (float)((int)(NK_ABS(d) / pxstep));
+            slider_value += (d > 0) ? (slider_step*steps) : -(slider_step*steps);
+            slider_value = NK_CLAMP(slider_min, slider_value, slider_max);
+            ratio = (slider_value - slider_min)/slider_step;
+            logical_cursor->x = bounds.x + (logical_cursor->w * ratio);
+            in->mouse.buttons[NK_BUTTON_LEFT].clicked_pos.x = logical_cursor->x;
+        }
+    }
+
+    /* slider widget state */
+    if (nk_input_is_mouse_hovering_rect(in, bounds))
+        *state = NK_WIDGET_STATE_HOVERED;
+    if (*state & NK_WIDGET_STATE_HOVER &&
+        !nk_input_is_mouse_prev_hovering_rect(in, bounds))
+        *state |= NK_WIDGET_STATE_ENTERED;
+    else if (nk_input_is_mouse_prev_hovering_rect(in, bounds))
+        *state |= NK_WIDGET_STATE_LEFT;
+    return slider_value;
+}
+NK_LIB void
+nk_draw_slider(struct nk_command_buffer *out, nk_flags state,
+    const struct nk_style_slider *style, const struct nk_rect *bounds,
+    const struct nk_rect *visual_cursor, float min, float value, float max)
+{
+    struct nk_rect fill;
+    struct nk_rect bar;
+    const struct nk_style_item *background;
+
+    /* select correct slider images/colors */
+    struct nk_color bar_color;
+    const struct nk_style_item *cursor;
+
+    NK_UNUSED(min);
+    NK_UNUSED(max);
+    NK_UNUSED(value);
+
+    if (state & NK_WIDGET_STATE_ACTIVED) {
+        background = &style->active;
+        bar_color = style->bar_active;
+        cursor = &style->cursor_active;
+    } else if (state & NK_WIDGET_STATE_HOVER) {
+        background = &style->hover;
+        bar_color = style->bar_hover;
+        cursor = &style->cursor_hover;
+    } else {
+        background = &style->normal;
+        bar_color = style->bar_normal;
+        cursor = &style->cursor_normal;
+    }
+    /* calculate slider background bar */
+    bar.x = bounds->x;
+    bar.y = (visual_cursor->y + visual_cursor->h/2) - bounds->h/12;
+    bar.w = bounds->w;
+    bar.h = bounds->h/6;
+
+    /* filled background bar style */
+    fill.w = (visual_cursor->x + (visual_cursor->w/2.0f)) - bar.x;
+    fill.x = bar.x;
+    fill.y = bar.y;
+    fill.h = bar.h;
+
+    /* draw background */
+    if (background->type == NK_STYLE_ITEM_IMAGE) {
+        nk_draw_image(out, *bounds, &background->data.image, nk_white);
+    } else {
+        nk_fill_rect(out, *bounds, style->rounding, background->data.color);
+        nk_stroke_rect(out, *bounds, style->rounding, style->border, style->border_color);
+    }
+
+    /* draw slider bar */
+    nk_fill_rect(out, bar, style->rounding, bar_color);
+    nk_fill_rect(out, fill, style->rounding, style->bar_filled);
+
+    /* draw cursor */
+    if (cursor->type == NK_STYLE_ITEM_IMAGE)
+        nk_draw_image(out, *visual_cursor, &cursor->data.image, nk_white);
+    else nk_fill_circle(out, *visual_cursor, cursor->data.color);
+}
+NK_LIB float
+nk_do_slider(nk_flags *state,
+    struct nk_command_buffer *out, struct nk_rect bounds,
+    float min, float val, float max, float step,
+    const struct nk_style_slider *style, struct nk_input *in,
+    const struct nk_user_font *font)
+{
+    float slider_range;
+    float slider_min;
+    float slider_max;
+    float slider_value;
+    float slider_steps;
+    float cursor_offset;
+
+    struct nk_rect visual_cursor;
+    struct nk_rect logical_cursor;
+
+    NK_ASSERT(style);
+    NK_ASSERT(out);
+    if (!out || !style)
+        return 0;
+
+    /* remove padding from slider bounds */
+    bounds.x = bounds.x + style->padding.x;
+    bounds.y = bounds.y + style->padding.y;
+    bounds.h = NK_MAX(bounds.h, 2*style->padding.y);
+    bounds.w = NK_MAX(bounds.w, 2*style->padding.x + style->cursor_size.x);
+    bounds.w -= 2 * style->padding.x;
+    bounds.h -= 2 * style->padding.y;
+
+    /* optional buttons */
+    if (style->show_buttons) {
+        nk_flags ws;
+        struct nk_rect button;
+        button.y = bounds.y;
+        button.w = bounds.h;
+        button.h = bounds.h;
+
+        /* decrement button */
+        button.x = bounds.x;
+        if (nk_do_button_symbol(&ws, out, button, style->dec_symbol, NK_BUTTON_DEFAULT,
+            &style->dec_button, in, font))
+            val -= step;
+
+        /* increment button */
+        button.x = (bounds.x + bounds.w) - button.w;
+        if (nk_do_button_symbol(&ws, out, button, style->inc_symbol, NK_BUTTON_DEFAULT,
+            &style->inc_button, in, font))
+            val += step;
+
+        bounds.x = bounds.x + button.w + style->spacing.x;
+        bounds.w = bounds.w - (2*button.w + 2*style->spacing.x);
+    }
+
+    /* remove one cursor size to support visual cursor */
+    bounds.x += style->cursor_size.x*0.5f;
+    bounds.w -= style->cursor_size.x;
+
+    /* make sure the provided values are correct */
+    slider_max = NK_MAX(min, max);
+    slider_min = NK_MIN(min, max);
+    slider_value = NK_CLAMP(slider_min, val, slider_max);
+    slider_range = slider_max - slider_min;
+    slider_steps = slider_range / step;
+    cursor_offset = (slider_value - slider_min) / step;
+
+    /* calculate cursor
+    Basically you have two cursors. One for visual representation and interaction
+    and one for updating the actual cursor value. */
+    logical_cursor.h = bounds.h;
+    logical_cursor.w = bounds.w / slider_steps;
+    logical_cursor.x = bounds.x + (logical_cursor.w * cursor_offset);
+    logical_cursor.y = bounds.y;
+
+    visual_cursor.h = style->cursor_size.y;
+    visual_cursor.w = style->cursor_size.x;
+    visual_cursor.y = (bounds.y + bounds.h*0.5f) - visual_cursor.h*0.5f;
+    visual_cursor.x = logical_cursor.x - visual_cursor.w*0.5f;
+
+    slider_value = nk_slider_behavior(state, &logical_cursor, &visual_cursor,
+        in, bounds, slider_min, slider_max, slider_value, step, slider_steps);
+    visual_cursor.x = logical_cursor.x - visual_cursor.w*0.5f;
+
+    /* draw slider */
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_slider(out, *state, style, &bounds, &visual_cursor, slider_min, slider_value, slider_max);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+    return slider_value;
+}
+NK_API int
+nk_slider_float(struct nk_context *ctx, float min_value, float *value, float max_value,
+    float value_step)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    struct nk_input *in;
+    const struct nk_style *style;
+
+    int ret = 0;
+    float old_value;
+    struct nk_rect bounds;
+    enum nk_widget_layout_states state;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    NK_ASSERT(value);
+    if (!ctx || !ctx->current || !ctx->current->layout || !value)
+        return ret;
+
+    win = ctx->current;
+    style = &ctx->style;
+    layout = win->layout;
+
+    state = nk_widget(&bounds, ctx);
+    if (!state) return ret;
+    in = (/*state == NK_WIDGET_ROM || */ layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+
+    old_value = *value;
+    *value = nk_do_slider(&ctx->last_widget_state, &win->buffer, bounds, min_value,
+                old_value, max_value, value_step, &style->slider, in, style->font);
+    return (old_value > *value || old_value < *value);
+}
+NK_API float
+nk_slide_float(struct nk_context *ctx, float min, float val, float max, float step)
+{
+    nk_slider_float(ctx, min, &val, max, step); return val;
+}
+NK_API int
+nk_slide_int(struct nk_context *ctx, int min, int val, int max, int step)
+{
+    float value = (float)val;
+    nk_slider_float(ctx, (float)min, &value, (float)max, (float)step);
+    return (int)value;
+}
+NK_API int
+nk_slider_int(struct nk_context *ctx, int min, int *val, int max, int step)
+{
+    int ret;
+    float value = (float)*val;
+    ret = nk_slider_float(ctx, (float)min, &value, (float)max, (float)step);
+    *val =  (int)value;
+    return ret;
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                          PROGRESS
+ *
+ * ===============================================================*/
+NK_LIB nk_size
+nk_progress_behavior(nk_flags *state, struct nk_input *in,
+    struct nk_rect r, struct nk_rect cursor, nk_size max, nk_size value, int modifiable)
+{
+    int left_mouse_down = 0;
+    int left_mouse_click_in_cursor = 0;
+
+    nk_widget_state_reset(state);
+    if (!in || !modifiable) return value;
+    left_mouse_down = in && in->mouse.buttons[NK_BUTTON_LEFT].down;
+    left_mouse_click_in_cursor = in && nk_input_has_mouse_click_down_in_rect(in,
+            NK_BUTTON_LEFT, cursor, nk_true);
+    if (nk_input_is_mouse_hovering_rect(in, r))
+        *state = NK_WIDGET_STATE_HOVERED;
+
+    if (in && left_mouse_down && left_mouse_click_in_cursor) {
+        if (left_mouse_down && left_mouse_click_in_cursor) {
+            float ratio = NK_MAX(0, (float)(in->mouse.pos.x - cursor.x)) / (float)cursor.w;
+            value = (nk_size)NK_CLAMP(0, (float)max * ratio, (float)max);
+            in->mouse.buttons[NK_BUTTON_LEFT].clicked_pos.x = cursor.x + cursor.w/2.0f;
+            *state |= NK_WIDGET_STATE_ACTIVE;
+        }
+    }
+    /* set progressbar widget state */
+    if (*state & NK_WIDGET_STATE_HOVER && !nk_input_is_mouse_prev_hovering_rect(in, r))
+        *state |= NK_WIDGET_STATE_ENTERED;
+    else if (nk_input_is_mouse_prev_hovering_rect(in, r))
+        *state |= NK_WIDGET_STATE_LEFT;
+    return value;
+}
+NK_LIB void
+nk_draw_progress(struct nk_command_buffer *out, nk_flags state,
+    const struct nk_style_progress *style, const struct nk_rect *bounds,
+    const struct nk_rect *scursor, nk_size value, nk_size max)
+{
+    const struct nk_style_item *background;
+    const struct nk_style_item *cursor;
+
+    NK_UNUSED(max);
+    NK_UNUSED(value);
+
+    /* select correct colors/images to draw */
+    if (state & NK_WIDGET_STATE_ACTIVED) {
+        background = &style->active;
+        cursor = &style->cursor_active;
+    } else if (state & NK_WIDGET_STATE_HOVER){
+        background = &style->hover;
+        cursor = &style->cursor_hover;
+    } else {
+        background = &style->normal;
+        cursor = &style->cursor_normal;
+    }
+
+    /* draw background */
+    if (background->type == NK_STYLE_ITEM_COLOR) {
+        nk_fill_rect(out, *bounds, style->rounding, background->data.color);
+        nk_stroke_rect(out, *bounds, style->rounding, style->border, style->border_color);
+    } else nk_draw_image(out, *bounds, &background->data.image, nk_white);
+
+    /* draw cursor */
+    if (cursor->type == NK_STYLE_ITEM_COLOR) {
+        nk_fill_rect(out, *scursor, style->rounding, cursor->data.color);
+        nk_stroke_rect(out, *scursor, style->rounding, style->border, style->border_color);
+    } else nk_draw_image(out, *scursor, &cursor->data.image, nk_white);
+}
+NK_LIB nk_size
+nk_do_progress(nk_flags *state,
+    struct nk_command_buffer *out, struct nk_rect bounds,
+    nk_size value, nk_size max, int modifiable,
+    const struct nk_style_progress *style, struct nk_input *in)
+{
+    float prog_scale;
+    nk_size prog_value;
+    struct nk_rect cursor;
+
+    NK_ASSERT(style);
+    NK_ASSERT(out);
+    if (!out || !style) return 0;
+
+    /* calculate progressbar cursor */
+    cursor.w = NK_MAX(bounds.w, 2 * style->padding.x + 2 * style->border);
+    cursor.h = NK_MAX(bounds.h, 2 * style->padding.y + 2 * style->border);
+    cursor = nk_pad_rect(bounds, nk_vec2(style->padding.x + style->border, style->padding.y + style->border));
+    prog_scale = (float)value / (float)max;
+
+    /* update progressbar */
+    prog_value = NK_MIN(value, max);
+    prog_value = nk_progress_behavior(state, in, bounds, cursor,max, prog_value, modifiable);
+    cursor.w = cursor.w * prog_scale;
+
+    /* draw progressbar */
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_progress(out, *state, style, &bounds, &cursor, value, max);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+    return prog_value;
+}
+NK_API int
+nk_progress(struct nk_context *ctx, nk_size *cur, nk_size max, int is_modifyable)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_style *style;
+    struct nk_input *in;
+
+    struct nk_rect bounds;
+    enum nk_widget_layout_states state;
+    nk_size old_value;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(cur);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout || !cur)
+        return 0;
+
+    win = ctx->current;
+    style = &ctx->style;
+    layout = win->layout;
+    state = nk_widget(&bounds, ctx);
+    if (!state) return 0;
+
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    old_value = *cur;
+    *cur = nk_do_progress(&ctx->last_widget_state, &win->buffer, bounds,
+            *cur, max, is_modifyable, &style->progress, in);
+    return (*cur != old_value);
+}
+NK_API nk_size
+nk_prog(struct nk_context *ctx, nk_size cur, nk_size max, int modifyable)
+{
+    nk_progress(ctx, &cur, max, modifyable);
+    return cur;
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              SCROLLBAR
+ *
+ * ===============================================================*/
+NK_LIB float
+nk_scrollbar_behavior(nk_flags *state, struct nk_input *in,
+    int has_scrolling, const struct nk_rect *scroll,
+    const struct nk_rect *cursor, const struct nk_rect *empty0,
+    const struct nk_rect *empty1, float scroll_offset,
+    float target, float scroll_step, enum nk_orientation o)
+{
+    nk_flags ws = 0;
+    int left_mouse_down;
+    int left_mouse_clicked;
+    int left_mouse_click_in_cursor;
+    float scroll_delta;
+
+    nk_widget_state_reset(state);
+    if (!in) return scroll_offset;
+
+    left_mouse_down = in->mouse.buttons[NK_BUTTON_LEFT].down;
+    left_mouse_clicked = in->mouse.buttons[NK_BUTTON_LEFT].clicked;
+    left_mouse_click_in_cursor = nk_input_has_mouse_click_down_in_rect(in,
+        NK_BUTTON_LEFT, *cursor, nk_true);
+    if (nk_input_is_mouse_hovering_rect(in, *scroll))
+        *state = NK_WIDGET_STATE_HOVERED;
+
+    scroll_delta = (o == NK_VERTICAL) ? in->mouse.scroll_delta.y: in->mouse.scroll_delta.x;
+    if (left_mouse_down && left_mouse_click_in_cursor && !left_mouse_clicked) {
+        /* update cursor by mouse dragging */
+        float pixel, delta;
+        *state = NK_WIDGET_STATE_ACTIVE;
+        if (o == NK_VERTICAL) {
+            float cursor_y;
+            pixel = in->mouse.delta.y;
+            delta = (pixel / scroll->h) * target;
+            scroll_offset = NK_CLAMP(0, scroll_offset + delta, target - scroll->h);
+            cursor_y = scroll->y + ((scroll_offset/target) * scroll->h);
+            in->mouse.buttons[NK_BUTTON_LEFT].clicked_pos.y = cursor_y + cursor->h/2.0f;
+        } else {
+            float cursor_x;
+            pixel = in->mouse.delta.x;
+            delta = (pixel / scroll->w) * target;
+            scroll_offset = NK_CLAMP(0, scroll_offset + delta, target - scroll->w);
+            cursor_x = scroll->x + ((scroll_offset/target) * scroll->w);
+            in->mouse.buttons[NK_BUTTON_LEFT].clicked_pos.x = cursor_x + cursor->w/2.0f;
+        }
+    } else if ((nk_input_is_key_pressed(in, NK_KEY_SCROLL_UP) && o == NK_VERTICAL && has_scrolling)||
+            nk_button_behavior(&ws, *empty0, in, NK_BUTTON_DEFAULT)) {
+        /* scroll page up by click on empty space or shortcut */
+        if (o == NK_VERTICAL)
+            scroll_offset = NK_MAX(0, scroll_offset - scroll->h);
+        else scroll_offset = NK_MAX(0, scroll_offset - scroll->w);
+    } else if ((nk_input_is_key_pressed(in, NK_KEY_SCROLL_DOWN) && o == NK_VERTICAL && has_scrolling) ||
+        nk_button_behavior(&ws, *empty1, in, NK_BUTTON_DEFAULT)) {
+        /* scroll page down by click on empty space or shortcut */
+        if (o == NK_VERTICAL)
+            scroll_offset = NK_MIN(scroll_offset + scroll->h, target - scroll->h);
+        else scroll_offset = NK_MIN(scroll_offset + scroll->w, target - scroll->w);
+    } else if (has_scrolling) {
+        if ((scroll_delta < 0 || (scroll_delta > 0))) {
+            /* update cursor by mouse scrolling */
+            scroll_offset = scroll_offset + scroll_step * (-scroll_delta);
+            if (o == NK_VERTICAL)
+                scroll_offset = NK_CLAMP(0, scroll_offset, target - scroll->h);
+            else scroll_offset = NK_CLAMP(0, scroll_offset, target - scroll->w);
+        } else if (nk_input_is_key_pressed(in, NK_KEY_SCROLL_START)) {
+            /* update cursor to the beginning  */
+            if (o == NK_VERTICAL) scroll_offset = 0;
+        } else if (nk_input_is_key_pressed(in, NK_KEY_SCROLL_END)) {
+            /* update cursor to the end */
+            if (o == NK_VERTICAL) scroll_offset = target - scroll->h;
+        }
+    }
+    if (*state & NK_WIDGET_STATE_HOVER && !nk_input_is_mouse_prev_hovering_rect(in, *scroll))
+        *state |= NK_WIDGET_STATE_ENTERED;
+    else if (nk_input_is_mouse_prev_hovering_rect(in, *scroll))
+        *state |= NK_WIDGET_STATE_LEFT;
+    return scroll_offset;
+}
+NK_LIB void
+nk_draw_scrollbar(struct nk_command_buffer *out, nk_flags state,
+    const struct nk_style_scrollbar *style, const struct nk_rect *bounds,
+    const struct nk_rect *scroll)
+{
+    const struct nk_style_item *background;
+    const struct nk_style_item *cursor;
+
+    /* select correct colors/images to draw */
+    if (state & NK_WIDGET_STATE_ACTIVED) {
+        background = &style->active;
+        cursor = &style->cursor_active;
+    } else if (state & NK_WIDGET_STATE_HOVER) {
+        background = &style->hover;
+        cursor = &style->cursor_hover;
+    } else {
+        background = &style->normal;
+        cursor = &style->cursor_normal;
+    }
+
+    /* draw background */
+    if (background->type == NK_STYLE_ITEM_COLOR) {
+        nk_fill_rect(out, *bounds, style->rounding, background->data.color);
+        nk_stroke_rect(out, *bounds, style->rounding, style->border, style->border_color);
+    } else {
+        nk_draw_image(out, *bounds, &background->data.image, nk_white);
+    }
+
+    /* draw cursor */
+    if (cursor->type == NK_STYLE_ITEM_COLOR) {
+        nk_fill_rect(out, *scroll, style->rounding_cursor, cursor->data.color);
+        nk_stroke_rect(out, *scroll, style->rounding_cursor, style->border_cursor, style->cursor_border_color);
+    } else nk_draw_image(out, *scroll, &cursor->data.image, nk_white);
+}
+NK_LIB float
+nk_do_scrollbarv(nk_flags *state,
+    struct nk_command_buffer *out, struct nk_rect scroll, int has_scrolling,
+    float offset, float target, float step, float button_pixel_inc,
+    const struct nk_style_scrollbar *style, struct nk_input *in,
+    const struct nk_user_font *font)
+{
+    struct nk_rect empty_north;
+    struct nk_rect empty_south;
+    struct nk_rect cursor;
+
+    float scroll_step;
+    float scroll_offset;
+    float scroll_off;
+    float scroll_ratio;
+
+    NK_ASSERT(out);
+    NK_ASSERT(style);
+    NK_ASSERT(state);
+    if (!out || !style) return 0;
+
+    scroll.w = NK_MAX(scroll.w, 1);
+    scroll.h = NK_MAX(scroll.h, 0);
+    if (target <= scroll.h) return 0;
+
+    /* optional scrollbar buttons */
+    if (style->show_buttons) {
+        nk_flags ws;
+        float scroll_h;
+        struct nk_rect button;
+
+        button.x = scroll.x;
+        button.w = scroll.w;
+        button.h = scroll.w;
+
+        scroll_h = NK_MAX(scroll.h - 2 * button.h,0);
+        scroll_step = NK_MIN(step, button_pixel_inc);
+
+        /* decrement button */
+        button.y = scroll.y;
+        if (nk_do_button_symbol(&ws, out, button, style->dec_symbol,
+            NK_BUTTON_REPEATER, &style->dec_button, in, font))
+            offset = offset - scroll_step;
+
+        /* increment button */
+        button.y = scroll.y + scroll.h - button.h;
+        if (nk_do_button_symbol(&ws, out, button, style->inc_symbol,
+            NK_BUTTON_REPEATER, &style->inc_button, in, font))
+            offset = offset + scroll_step;
+
+        scroll.y = scroll.y + button.h;
+        scroll.h = scroll_h;
+    }
+
+    /* calculate scrollbar constants */
+    scroll_step = NK_MIN(step, scroll.h);
+    scroll_offset = NK_CLAMP(0, offset, target - scroll.h);
+    scroll_ratio = scroll.h / target;
+    scroll_off = scroll_offset / target;
+
+    /* calculate scrollbar cursor bounds */
+    cursor.h = NK_MAX((scroll_ratio * scroll.h) - (2*style->border + 2*style->padding.y), 0);
+    cursor.y = scroll.y + (scroll_off * scroll.h) + style->border + style->padding.y;
+    cursor.w = scroll.w - (2 * style->border + 2 * style->padding.x);
+    cursor.x = scroll.x + style->border + style->padding.x;
+
+    /* calculate empty space around cursor */
+    empty_north.x = scroll.x;
+    empty_north.y = scroll.y;
+    empty_north.w = scroll.w;
+    empty_north.h = NK_MAX(cursor.y - scroll.y, 0);
+
+    empty_south.x = scroll.x;
+    empty_south.y = cursor.y + cursor.h;
+    empty_south.w = scroll.w;
+    empty_south.h = NK_MAX((scroll.y + scroll.h) - (cursor.y + cursor.h), 0);
+
+    /* update scrollbar */
+    scroll_offset = nk_scrollbar_behavior(state, in, has_scrolling, &scroll, &cursor,
+        &empty_north, &empty_south, scroll_offset, target, scroll_step, NK_VERTICAL);
+    scroll_off = scroll_offset / target;
+    cursor.y = scroll.y + (scroll_off * scroll.h) + style->border_cursor + style->padding.y;
+
+    /* draw scrollbar */
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_scrollbar(out, *state, style, &scroll, &cursor);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+    return scroll_offset;
+}
+NK_LIB float
+nk_do_scrollbarh(nk_flags *state,
+    struct nk_command_buffer *out, struct nk_rect scroll, int has_scrolling,
+    float offset, float target, float step, float button_pixel_inc,
+    const struct nk_style_scrollbar *style, struct nk_input *in,
+    const struct nk_user_font *font)
+{
+    struct nk_rect cursor;
+    struct nk_rect empty_west;
+    struct nk_rect empty_east;
+
+    float scroll_step;
+    float scroll_offset;
+    float scroll_off;
+    float scroll_ratio;
+
+    NK_ASSERT(out);
+    NK_ASSERT(style);
+    if (!out || !style) return 0;
+
+    /* scrollbar background */
+    scroll.h = NK_MAX(scroll.h, 1);
+    scroll.w = NK_MAX(scroll.w, 2 * scroll.h);
+    if (target <= scroll.w) return 0;
+
+    /* optional scrollbar buttons */
+    if (style->show_buttons) {
+        nk_flags ws;
+        float scroll_w;
+        struct nk_rect button;
+        button.y = scroll.y;
+        button.w = scroll.h;
+        button.h = scroll.h;
+
+        scroll_w = scroll.w - 2 * button.w;
+        scroll_step = NK_MIN(step, button_pixel_inc);
+
+        /* decrement button */
+        button.x = scroll.x;
+        if (nk_do_button_symbol(&ws, out, button, style->dec_symbol,
+            NK_BUTTON_REPEATER, &style->dec_button, in, font))
+            offset = offset - scroll_step;
+
+        /* increment button */
+        button.x = scroll.x + scroll.w - button.w;
+        if (nk_do_button_symbol(&ws, out, button, style->inc_symbol,
+            NK_BUTTON_REPEATER, &style->inc_button, in, font))
+            offset = offset + scroll_step;
+
+        scroll.x = scroll.x + button.w;
+        scroll.w = scroll_w;
+    }
+
+    /* calculate scrollbar constants */
+    scroll_step = NK_MIN(step, scroll.w);
+    scroll_offset = NK_CLAMP(0, offset, target - scroll.w);
+    scroll_ratio = scroll.w / target;
+    scroll_off = scroll_offset / target;
+
+    /* calculate cursor bounds */
+    cursor.w = (scroll_ratio * scroll.w) - (2*style->border + 2*style->padding.x);
+    cursor.x = scroll.x + (scroll_off * scroll.w) + style->border + style->padding.x;
+    cursor.h = scroll.h - (2 * style->border + 2 * style->padding.y);
+    cursor.y = scroll.y + style->border + style->padding.y;
+
+    /* calculate empty space around cursor */
+    empty_west.x = scroll.x;
+    empty_west.y = scroll.y;
+    empty_west.w = cursor.x - scroll.x;
+    empty_west.h = scroll.h;
+
+    empty_east.x = cursor.x + cursor.w;
+    empty_east.y = scroll.y;
+    empty_east.w = (scroll.x + scroll.w) - (cursor.x + cursor.w);
+    empty_east.h = scroll.h;
+
+    /* update scrollbar */
+    scroll_offset = nk_scrollbar_behavior(state, in, has_scrolling, &scroll, &cursor,
+        &empty_west, &empty_east, scroll_offset, target, scroll_step, NK_HORIZONTAL);
+    scroll_off = scroll_offset / target;
+    cursor.x = scroll.x + (scroll_off * scroll.w);
+
+    /* draw scrollbar */
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_scrollbar(out, *state, style, &scroll, &cursor);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+    return scroll_offset;
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                          TEXT EDITOR
+ *
+ * ===============================================================*/
+/* stb_textedit.h - v1.8  - public domain - Sean Barrett */
+struct nk_text_find {
+   float x,y;    /* position of n'th character */
+   float height; /* height of line */
+   int first_char, length; /* first char of row, and length */
+   int prev_first;  /*_ first char of previous row */
+};
+
+struct nk_text_edit_row {
+   float x0,x1;
+   /* starting x location, end x location (allows for align=right, etc) */
+   float baseline_y_delta;
+   /* position of baseline relative to previous row's baseline*/
+   float ymin,ymax;
+   /* height of row above and below baseline */
+   int num_chars;
+};
+
+/* forward declarations */
+NK_INTERN void nk_textedit_makeundo_delete(struct nk_text_edit*, int, int);
+NK_INTERN void nk_textedit_makeundo_insert(struct nk_text_edit*, int, int);
+NK_INTERN void nk_textedit_makeundo_replace(struct nk_text_edit*, int, int, int);
+#define NK_TEXT_HAS_SELECTION(s)   ((s)->select_start != (s)->select_end)
+
+NK_INTERN float
+nk_textedit_get_width(const struct nk_text_edit *edit, int line_start, int char_id,
+    const struct nk_user_font *font)
+{
+    int len = 0;
+    nk_rune unicode = 0;
+    const char *str = nk_str_at_const(&edit->string, line_start + char_id, &unicode, &len);
+    return font->width(font->userdata, font->height, str, len);
+}
+NK_INTERN void
+nk_textedit_layout_row(struct nk_text_edit_row *r, struct nk_text_edit *edit,
+    int line_start_id, float row_height, const struct nk_user_font *font)
+{
+    int l;
+    int glyphs = 0;
+    nk_rune unicode;
+    const char *remaining;
+    int len = nk_str_len_char(&edit->string);
+    const char *end = nk_str_get_const(&edit->string) + len;
+    const char *text = nk_str_at_const(&edit->string, line_start_id, &unicode, &l);
+    const struct nk_vec2 size = nk_text_calculate_text_bounds(font,
+        text, (int)(end - text), row_height, &remaining, 0, &glyphs, NK_STOP_ON_NEW_LINE);
+
+    r->x0 = 0.0f;
+    r->x1 = size.x;
+    r->baseline_y_delta = size.y;
+    r->ymin = 0.0f;
+    r->ymax = size.y;
+    r->num_chars = glyphs;
+}
+NK_INTERN int
+nk_textedit_locate_coord(struct nk_text_edit *edit, float x, float y,
+    const struct nk_user_font *font, float row_height)
+{
+    struct nk_text_edit_row r;
+    int n = edit->string.len;
+    float base_y = 0, prev_x;
+    int i=0, k;
+
+    r.x0 = r.x1 = 0;
+    r.ymin = r.ymax = 0;
+    r.num_chars = 0;
+
+    /* search rows to find one that straddles 'y' */
+    while (i < n) {
+        nk_textedit_layout_row(&r, edit, i, row_height, font);
+        if (r.num_chars <= 0)
+            return n;
+
+        if (i==0 && y < base_y + r.ymin)
+            return 0;
+
+        if (y < base_y + r.ymax)
+            break;
+
+        i += r.num_chars;
+        base_y += r.baseline_y_delta;
+    }
+
+    /* below all text, return 'after' last character */
+    if (i >= n)
+        return n;
+
+    /* check if it's before the beginning of the line */
+    if (x < r.x0)
+        return i;
+
+    /* check if it's before the end of the line */
+    if (x < r.x1) {
+        /* search characters in row for one that straddles 'x' */
+        k = i;
+        prev_x = r.x0;
+        for (i=0; i < r.num_chars; ++i) {
+            float w = nk_textedit_get_width(edit, k, i, font);
+            if (x < prev_x+w) {
+                if (x < prev_x+w/2)
+                    return k+i;
+                else return k+i+1;
+            }
+            prev_x += w;
+        }
+        /* shouldn't happen, but if it does, fall through to end-of-line case */
+    }
+
+    /* if the last character is a newline, return that.
+     * otherwise return 'after' the last character */
+    if (nk_str_rune_at(&edit->string, i+r.num_chars-1) == '\n')
+        return i+r.num_chars-1;
+    else return i+r.num_chars;
+}
+NK_LIB void
+nk_textedit_click(struct nk_text_edit *state, float x, float y,
+    const struct nk_user_font *font, float row_height)
+{
+    /* API click: on mouse down, move the cursor to the clicked location,
+     * and reset the selection */
+    state->cursor = nk_textedit_locate_coord(state, x, y, font, row_height);
+    state->select_start = state->cursor;
+    state->select_end = state->cursor;
+    state->has_preferred_x = 0;
+}
+NK_LIB void
+nk_textedit_drag(struct nk_text_edit *state, float x, float y,
+    const struct nk_user_font *font, float row_height)
+{
+    /* API drag: on mouse drag, move the cursor and selection endpoint
+     * to the clicked location */
+    int p = nk_textedit_locate_coord(state, x, y, font, row_height);
+    if (state->select_start == state->select_end)
+        state->select_start = state->cursor;
+    state->cursor = state->select_end = p;
+}
+NK_INTERN void
+nk_textedit_find_charpos(struct nk_text_find *find, struct nk_text_edit *state,
+    int n, int single_line, const struct nk_user_font *font, float row_height)
+{
+    /* find the x/y location of a character, and remember info about the previous
+     * row in case we get a move-up event (for page up, we'll have to rescan) */
+    struct nk_text_edit_row r;
+    int prev_start = 0;
+    int z = state->string.len;
+    int i=0, first;
+
+    nk_zero_struct(r);
+    if (n == z) {
+        /* if it's at the end, then find the last line -- simpler than trying to
+        explicitly handle this case in the regular code */
+        nk_textedit_layout_row(&r, state, 0, row_height, font);
+        if (single_line) {
+            find->first_char = 0;
+            find->length = z;
+        } else {
+            while (i < z) {
+                prev_start = i;
+                i += r.num_chars;
+                nk_textedit_layout_row(&r, state, i, row_height, font);
+            }
+
+            find->first_char = i;
+            find->length = r.num_chars;
+        }
+        find->x = r.x1;
+        find->y = r.ymin;
+        find->height = r.ymax - r.ymin;
+        find->prev_first = prev_start;
+        return;
+    }
+
+    /* search rows to find the one that straddles character n */
+    find->y = 0;
+
+    for(;;) {
+        nk_textedit_layout_row(&r, state, i, row_height, font);
+        if (n < i + r.num_chars) break;
+        prev_start = i;
+        i += r.num_chars;
+        find->y += r.baseline_y_delta;
+    }
+
+    find->first_char = first = i;
+    find->length = r.num_chars;
+    find->height = r.ymax - r.ymin;
+    find->prev_first = prev_start;
+
+    /* now scan to find xpos */
+    find->x = r.x0;
+    for (i=0; first+i < n; ++i)
+        find->x += nk_textedit_get_width(state, first, i, font);
+}
+NK_INTERN void
+nk_textedit_clamp(struct nk_text_edit *state)
+{
+    /* make the selection/cursor state valid if client altered the string */
+    int n = state->string.len;
+    if (NK_TEXT_HAS_SELECTION(state)) {
+        if (state->select_start > n) state->select_start = n;
+        if (state->select_end   > n) state->select_end = n;
+        /* if clamping forced them to be equal, move the cursor to match */
+        if (state->select_start == state->select_end)
+            state->cursor = state->select_start;
+    }
+    if (state->cursor > n) state->cursor = n;
+}
+NK_API void
+nk_textedit_delete(struct nk_text_edit *state, int where, int len)
+{
+    /* delete characters while updating undo */
+    nk_textedit_makeundo_delete(state, where, len);
+    nk_str_delete_runes(&state->string, where, len);
+    state->has_preferred_x = 0;
+}
+NK_API void
+nk_textedit_delete_selection(struct nk_text_edit *state)
+{
+    /* delete the section */
+    nk_textedit_clamp(state);
+    if (NK_TEXT_HAS_SELECTION(state)) {
+        if (state->select_start < state->select_end) {
+            nk_textedit_delete(state, state->select_start,
+                state->select_end - state->select_start);
+            state->select_end = state->cursor = state->select_start;
+        } else {
+            nk_textedit_delete(state, state->select_end,
+                state->select_start - state->select_end);
+            state->select_start = state->cursor = state->select_end;
+        }
+        state->has_preferred_x = 0;
+    }
+}
+NK_INTERN void
+nk_textedit_sortselection(struct nk_text_edit *state)
+{
+    /* canonicalize the selection so start <= end */
+    if (state->select_end < state->select_start) {
+        int temp = state->select_end;
+        state->select_end = state->select_start;
+        state->select_start = temp;
+    }
+}
+NK_INTERN void
+nk_textedit_move_to_first(struct nk_text_edit *state)
+{
+    /* move cursor to first character of selection */
+    if (NK_TEXT_HAS_SELECTION(state)) {
+        nk_textedit_sortselection(state);
+        state->cursor = state->select_start;
+        state->select_end = state->select_start;
+        state->has_preferred_x = 0;
+    }
+}
+NK_INTERN void
+nk_textedit_move_to_last(struct nk_text_edit *state)
+{
+    /* move cursor to last character of selection */
+    if (NK_TEXT_HAS_SELECTION(state)) {
+        nk_textedit_sortselection(state);
+        nk_textedit_clamp(state);
+        state->cursor = state->select_end;
+        state->select_start = state->select_end;
+        state->has_preferred_x = 0;
+    }
+}
+NK_INTERN int
+nk_is_word_boundary( struct nk_text_edit *state, int idx)
+{
+    int len;
+    nk_rune c;
+    if (idx <= 0) return 1;
+    if (!nk_str_at_rune(&state->string, idx, &c, &len)) return 1;
+    return (c == ' ' || c == '\t' ||c == 0x3000 || c == ',' || c == ';' ||
+            c == '(' || c == ')' || c == '{' || c == '}' || c == '[' || c == ']' ||
+            c == '|');
+}
+NK_INTERN int
+nk_textedit_move_to_word_previous(struct nk_text_edit *state)
+{
+   int c = state->cursor - 1;
+   while( c >= 0 && !nk_is_word_boundary(state, c))
+      --c;
+
+   if( c < 0 )
+      c = 0;
+
+   return c;
+}
+NK_INTERN int
+nk_textedit_move_to_word_next(struct nk_text_edit *state)
+{
+   const int len = state->string.len;
+   int c = state->cursor+1;
+   while( c < len && !nk_is_word_boundary(state, c))
+      ++c;
+
+   if( c > len )
+      c = len;
+
+   return c;
+}
+NK_INTERN void
+nk_textedit_prep_selection_at_cursor(struct nk_text_edit *state)
+{
+    /* update selection and cursor to match each other */
+    if (!NK_TEXT_HAS_SELECTION(state))
+        state->select_start = state->select_end = state->cursor;
+    else state->cursor = state->select_end;
+}
+NK_API int
+nk_textedit_cut(struct nk_text_edit *state)
+{
+    /* API cut: delete selection */
+    if (state->mode == NK_TEXT_EDIT_MODE_VIEW)
+        return 0;
+    if (NK_TEXT_HAS_SELECTION(state)) {
+        nk_textedit_delete_selection(state); /* implicitly clamps */
+        state->has_preferred_x = 0;
+        return 1;
+    }
+   return 0;
+}
+NK_API int
+nk_textedit_paste(struct nk_text_edit *state, char const *ctext, int len)
+{
+    /* API paste: replace existing selection with passed-in text */
+    int glyphs;
+    const char *text = (const char *) ctext;
+    if (state->mode == NK_TEXT_EDIT_MODE_VIEW) return 0;
+
+    /* if there's a selection, the paste should delete it */
+    nk_textedit_clamp(state);
+    nk_textedit_delete_selection(state);
+
+    /* try to insert the characters */
+    glyphs = nk_utf_len(ctext, len);
+    if (nk_str_insert_text_char(&state->string, state->cursor, text, len)) {
+        nk_textedit_makeundo_insert(state, state->cursor, glyphs);
+        state->cursor += len;
+        state->has_preferred_x = 0;
+        return 1;
+    }
+    /* remove the undo since we didn't actually insert the characters */
+    if (state->undo.undo_point)
+        --state->undo.undo_point;
+    return 0;
+}
+NK_API void
+nk_textedit_text(struct nk_text_edit *state, const char *text, int total_len)
+{
+    nk_rune unicode;
+    int glyph_len;
+    int text_len = 0;
+
+    NK_ASSERT(state);
+    NK_ASSERT(text);
+    if (!text || !total_len || state->mode == NK_TEXT_EDIT_MODE_VIEW) return;
+
+    glyph_len = nk_utf_decode(text, &unicode, total_len);
+    while ((text_len < total_len) && glyph_len)
+    {
+        /* don't insert a backward delete, just process the event */
+        if (unicode == 127) goto next;
+        /* can't add newline in single-line mode */
+        if (unicode == '\n' && state->single_line) goto next;
+        /* filter incoming text */
+        if (state->filter && !state->filter(state, unicode)) goto next;
+
+        if (!NK_TEXT_HAS_SELECTION(state) &&
+            state->cursor < state->string.len)
+        {
+            if (state->mode == NK_TEXT_EDIT_MODE_REPLACE) {
+                nk_textedit_makeundo_replace(state, state->cursor, 1, 1);
+                nk_str_delete_runes(&state->string, state->cursor, 1);
+            }
+            if (nk_str_insert_text_utf8(&state->string, state->cursor,
+                                        text+text_len, 1))
+            {
+                ++state->cursor;
+                state->has_preferred_x = 0;
+            }
+        } else {
+            nk_textedit_delete_selection(state); /* implicitly clamps */
+            if (nk_str_insert_text_utf8(&state->string, state->cursor,
+                                        text+text_len, 1))
+            {
+                nk_textedit_makeundo_insert(state, state->cursor, 1);
+                ++state->cursor;
+                state->has_preferred_x = 0;
+            }
+        }
+        next:
+        text_len += glyph_len;
+        glyph_len = nk_utf_decode(text + text_len, &unicode, total_len-text_len);
+    }
+}
+NK_LIB void
+nk_textedit_key(struct nk_text_edit *state, enum nk_keys key, int shift_mod,
+    const struct nk_user_font *font, float row_height)
+{
+retry:
+    switch (key)
+    {
+    case NK_KEY_NONE:
+    case NK_KEY_CTRL:
+    case NK_KEY_ENTER:
+    case NK_KEY_SHIFT:
+    case NK_KEY_TAB:
+    case NK_KEY_COPY:
+    case NK_KEY_CUT:
+    case NK_KEY_PASTE:
+    case NK_KEY_MAX:
+    default: break;
+    case NK_KEY_TEXT_UNDO:
+         nk_textedit_undo(state);
+         state->has_preferred_x = 0;
+         break;
+
+    case NK_KEY_TEXT_REDO:
+        nk_textedit_redo(state);
+        state->has_preferred_x = 0;
+        break;
+
+    case NK_KEY_TEXT_SELECT_ALL:
+        nk_textedit_select_all(state);
+        state->has_preferred_x = 0;
+        break;
+
+    case NK_KEY_TEXT_INSERT_MODE:
+        if (state->mode == NK_TEXT_EDIT_MODE_VIEW)
+            state->mode = NK_TEXT_EDIT_MODE_INSERT;
+        break;
+    case NK_KEY_TEXT_REPLACE_MODE:
+        if (state->mode == NK_TEXT_EDIT_MODE_VIEW)
+            state->mode = NK_TEXT_EDIT_MODE_REPLACE;
+        break;
+    case NK_KEY_TEXT_RESET_MODE:
+        if (state->mode == NK_TEXT_EDIT_MODE_INSERT ||
+            state->mode == NK_TEXT_EDIT_MODE_REPLACE)
+            state->mode = NK_TEXT_EDIT_MODE_VIEW;
+        break;
+
+    case NK_KEY_LEFT:
+        if (shift_mod) {
+            nk_textedit_clamp(state);
+            nk_textedit_prep_selection_at_cursor(state);
+            /* move selection left */
+            if (state->select_end > 0)
+                --state->select_end;
+            state->cursor = state->select_end;
+            state->has_preferred_x = 0;
+        } else {
+            /* if currently there's a selection,
+             * move cursor to start of selection */
+            if (NK_TEXT_HAS_SELECTION(state))
+                nk_textedit_move_to_first(state);
+            else if (state->cursor > 0)
+               --state->cursor;
+            state->has_preferred_x = 0;
+        } break;
+
+    case NK_KEY_RIGHT:
+        if (shift_mod) {
+            nk_textedit_prep_selection_at_cursor(state);
+            /* move selection right */
+            ++state->select_end;
+            nk_textedit_clamp(state);
+            state->cursor = state->select_end;
+            state->has_preferred_x = 0;
+        } else {
+            /* if currently there's a selection,
+             * move cursor to end of selection */
+            if (NK_TEXT_HAS_SELECTION(state))
+                nk_textedit_move_to_last(state);
+            else ++state->cursor;
+            nk_textedit_clamp(state);
+            state->has_preferred_x = 0;
+        } break;
+
+    case NK_KEY_TEXT_WORD_LEFT:
+        if (shift_mod) {
+            if( !NK_TEXT_HAS_SELECTION( state ) )
+            nk_textedit_prep_selection_at_cursor(state);
+            state->cursor = nk_textedit_move_to_word_previous(state);
+            state->select_end = state->cursor;
+            nk_textedit_clamp(state );
+        } else {
+            if (NK_TEXT_HAS_SELECTION(state))
+                nk_textedit_move_to_first(state);
+            else {
+                state->cursor = nk_textedit_move_to_word_previous(state);
+                nk_textedit_clamp(state );
+            }
+        } break;
+
+    case NK_KEY_TEXT_WORD_RIGHT:
+        if (shift_mod) {
+            if( !NK_TEXT_HAS_SELECTION( state ) )
+                nk_textedit_prep_selection_at_cursor(state);
+            state->cursor = nk_textedit_move_to_word_next(state);
+            state->select_end = state->cursor;
+            nk_textedit_clamp(state);
+        } else {
+            if (NK_TEXT_HAS_SELECTION(state))
+                nk_textedit_move_to_last(state);
+            else {
+                state->cursor = nk_textedit_move_to_word_next(state);
+                nk_textedit_clamp(state );
+            }
+        } break;
+
+    case NK_KEY_DOWN: {
+        struct nk_text_find find;
+        struct nk_text_edit_row row;
+        int i, sel = shift_mod;
+
+        if (state->single_line) {
+            /* on windows, up&down in single-line behave like left&right */
+            key = NK_KEY_RIGHT;
+            goto retry;
+        }
+
+        if (sel)
+            nk_textedit_prep_selection_at_cursor(state);
+        else if (NK_TEXT_HAS_SELECTION(state))
+            nk_textedit_move_to_last(state);
+
+        /* compute current position of cursor point */
+        nk_textedit_clamp(state);
+        nk_textedit_find_charpos(&find, state, state->cursor, state->single_line,
+            font, row_height);
+
+        /* now find character position down a row */
+        if (find.length)
+        {
+            float x;
+            float goal_x = state->has_preferred_x ? state->preferred_x : find.x;
+            int start = find.first_char + find.length;
+
+            state->cursor = start;
+            nk_textedit_layout_row(&row, state, state->cursor, row_height, font);
+            x = row.x0;
+
+            for (i=0; i < row.num_chars && x < row.x1; ++i) {
+                float dx = nk_textedit_get_width(state, start, i, font);
+                x += dx;
+                if (x > goal_x)
+                    break;
+                ++state->cursor;
+            }
+            nk_textedit_clamp(state);
+
+            state->has_preferred_x = 1;
+            state->preferred_x = goal_x;
+            if (sel)
+                state->select_end = state->cursor;
+        }
+    } break;
+
+    case NK_KEY_UP: {
+        struct nk_text_find find;
+        struct nk_text_edit_row row;
+        int i, sel = shift_mod;
+
+        if (state->single_line) {
+            /* on windows, up&down become left&right */
+            key = NK_KEY_LEFT;
+            goto retry;
+        }
+
+        if (sel)
+            nk_textedit_prep_selection_at_cursor(state);
+        else if (NK_TEXT_HAS_SELECTION(state))
+            nk_textedit_move_to_first(state);
+
+         /* compute current position of cursor point */
+         nk_textedit_clamp(state);
+         nk_textedit_find_charpos(&find, state, state->cursor, state->single_line,
+                font, row_height);
+
+         /* can only go up if there's a previous row */
+         if (find.prev_first != find.first_char) {
+            /* now find character position up a row */
+            float x;
+            float goal_x = state->has_preferred_x ? state->preferred_x : find.x;
+
+            state->cursor = find.prev_first;
+            nk_textedit_layout_row(&row, state, state->cursor, row_height, font);
+            x = row.x0;
+
+            for (i=0; i < row.num_chars && x < row.x1; ++i) {
+                float dx = nk_textedit_get_width(state, find.prev_first, i, font);
+                x += dx;
+                if (x > goal_x)
+                    break;
+                ++state->cursor;
+            }
+            nk_textedit_clamp(state);
+
+            state->has_preferred_x = 1;
+            state->preferred_x = goal_x;
+            if (sel) state->select_end = state->cursor;
+         }
+      } break;
+
+    case NK_KEY_DEL:
+        if (state->mode == NK_TEXT_EDIT_MODE_VIEW)
+            break;
+        if (NK_TEXT_HAS_SELECTION(state))
+            nk_textedit_delete_selection(state);
+        else {
+            int n = state->string.len;
+            if (state->cursor < n)
+                nk_textedit_delete(state, state->cursor, 1);
+         }
+         state->has_preferred_x = 0;
+         break;
+
+    case NK_KEY_BACKSPACE:
+        if (state->mode == NK_TEXT_EDIT_MODE_VIEW)
+            break;
+        if (NK_TEXT_HAS_SELECTION(state))
+            nk_textedit_delete_selection(state);
+        else {
+            nk_textedit_clamp(state);
+            if (state->cursor > 0) {
+                nk_textedit_delete(state, state->cursor-1, 1);
+                --state->cursor;
+            }
+         }
+         state->has_preferred_x = 0;
+         break;
+
+    case NK_KEY_TEXT_START:
+         if (shift_mod) {
+            nk_textedit_prep_selection_at_cursor(state);
+            state->cursor = state->select_end = 0;
+            state->has_preferred_x = 0;
+         } else {
+            state->cursor = state->select_start = state->select_end = 0;
+            state->has_preferred_x = 0;
+         }
+         break;
+
+    case NK_KEY_TEXT_END:
+         if (shift_mod) {
+            nk_textedit_prep_selection_at_cursor(state);
+            state->cursor = state->select_end = state->string.len;
+            state->has_preferred_x = 0;
+         } else {
+            state->cursor = state->string.len;
+            state->select_start = state->select_end = 0;
+            state->has_preferred_x = 0;
+         }
+         break;
+
+    case NK_KEY_TEXT_LINE_START: {
+        if (shift_mod) {
+            struct nk_text_find find;
+           nk_textedit_clamp(state);
+            nk_textedit_prep_selection_at_cursor(state);
+            if (state->string.len && state->cursor == state->string.len)
+                --state->cursor;
+            nk_textedit_find_charpos(&find, state,state->cursor, state->single_line,
+                font, row_height);
+            state->cursor = state->select_end = find.first_char;
+            state->has_preferred_x = 0;
+        } else {
+            struct nk_text_find find;
+            if (state->string.len && state->cursor == state->string.len)
+                --state->cursor;
+            nk_textedit_clamp(state);
+            nk_textedit_move_to_first(state);
+            nk_textedit_find_charpos(&find, state, state->cursor, state->single_line,
+                font, row_height);
+            state->cursor = find.first_char;
+            state->has_preferred_x = 0;
+        }
+      } break;
+
+    case NK_KEY_TEXT_LINE_END: {
+        if (shift_mod) {
+            struct nk_text_find find;
+            nk_textedit_clamp(state);
+            nk_textedit_prep_selection_at_cursor(state);
+            nk_textedit_find_charpos(&find, state, state->cursor, state->single_line,
+                font, row_height);
+            state->has_preferred_x = 0;
+            state->cursor = find.first_char + find.length;
+            if (find.length > 0 && nk_str_rune_at(&state->string, state->cursor-1) == '\n')
+                --state->cursor;
+            state->select_end = state->cursor;
+        } else {
+            struct nk_text_find find;
+            nk_textedit_clamp(state);
+            nk_textedit_move_to_first(state);
+            nk_textedit_find_charpos(&find, state, state->cursor, state->single_line,
+                font, row_height);
+
+            state->has_preferred_x = 0;
+            state->cursor = find.first_char + find.length;
+            if (find.length > 0 && nk_str_rune_at(&state->string, state->cursor-1) == '\n')
+                --state->cursor;
+        }} break;
+    }
+}
+NK_INTERN void
+nk_textedit_flush_redo(struct nk_text_undo_state *state)
+{
+    state->redo_point = NK_TEXTEDIT_UNDOSTATECOUNT;
+    state->redo_char_point = NK_TEXTEDIT_UNDOCHARCOUNT;
+}
+NK_INTERN void
+nk_textedit_discard_undo(struct nk_text_undo_state *state)
+{
+    /* discard the oldest entry in the undo list */
+    if (state->undo_point > 0) {
+        /* if the 0th undo state has characters, clean those up */
+        if (state->undo_rec[0].char_storage >= 0) {
+            int n = state->undo_rec[0].insert_length, i;
+            /* delete n characters from all other records */
+            state->undo_char_point = (short)(state->undo_char_point - n);
+            NK_MEMCPY(state->undo_char, state->undo_char + n,
+                (nk_size)state->undo_char_point*sizeof(nk_rune));
+            for (i=0; i < state->undo_point; ++i) {
+                if (state->undo_rec[i].char_storage >= 0)
+                state->undo_rec[i].char_storage = (short)
+                    (state->undo_rec[i].char_storage - n);
+            }
+        }
+        --state->undo_point;
+        NK_MEMCPY(state->undo_rec, state->undo_rec+1,
+            (nk_size)((nk_size)state->undo_point * sizeof(state->undo_rec[0])));
+    }
+}
+NK_INTERN void
+nk_textedit_discard_redo(struct nk_text_undo_state *state)
+{
+/*  discard the oldest entry in the redo list--it's bad if this
+    ever happens, but because undo & redo have to store the actual
+    characters in different cases, the redo character buffer can
+    fill up even though the undo buffer didn't */
+    nk_size num;
+    int k = NK_TEXTEDIT_UNDOSTATECOUNT-1;
+    if (state->redo_point <= k) {
+        /* if the k'th undo state has characters, clean those up */
+        if (state->undo_rec[k].char_storage >= 0) {
+            int n = state->undo_rec[k].insert_length, i;
+            /* delete n characters from all other records */
+            state->redo_char_point = (short)(state->redo_char_point + n);
+            num = (nk_size)(NK_TEXTEDIT_UNDOCHARCOUNT - state->redo_char_point);
+            NK_MEMCPY(state->undo_char + state->redo_char_point,
+                state->undo_char + state->redo_char_point-n, num * sizeof(char));
+            for (i = state->redo_point; i < k; ++i) {
+                if (state->undo_rec[i].char_storage >= 0) {
+                    state->undo_rec[i].char_storage = (short)
+                        (state->undo_rec[i].char_storage + n);
+                }
+            }
+        }
+        ++state->redo_point;
+        num = (nk_size)(NK_TEXTEDIT_UNDOSTATECOUNT - state->redo_point);
+        if (num) NK_MEMCPY(state->undo_rec + state->redo_point-1,
+            state->undo_rec + state->redo_point, num * sizeof(state->undo_rec[0]));
+    }
+}
+NK_INTERN struct nk_text_undo_record*
+nk_textedit_create_undo_record(struct nk_text_undo_state *state, int numchars)
+{
+    /* any time we create a new undo record, we discard redo*/
+    nk_textedit_flush_redo(state);
+
+    /* if we have no free records, we have to make room,
+     * by sliding the existing records down */
+    if (state->undo_point == NK_TEXTEDIT_UNDOSTATECOUNT)
+        nk_textedit_discard_undo(state);
+
+    /* if the characters to store won't possibly fit in the buffer,
+     * we can't undo */
+    if (numchars > NK_TEXTEDIT_UNDOCHARCOUNT) {
+        state->undo_point = 0;
+        state->undo_char_point = 0;
+        return 0;
+    }
+
+    /* if we don't have enough free characters in the buffer,
+     * we have to make room */
+    while (state->undo_char_point + numchars > NK_TEXTEDIT_UNDOCHARCOUNT)
+        nk_textedit_discard_undo(state);
+    return &state->undo_rec[state->undo_point++];
+}
+NK_INTERN nk_rune*
+nk_textedit_createundo(struct nk_text_undo_state *state, int pos,
+    int insert_len, int delete_len)
+{
+    struct nk_text_undo_record *r = nk_textedit_create_undo_record(state, insert_len);
+    if (r == 0)
+        return 0;
+
+    r->where = pos;
+    r->insert_length = (short) insert_len;
+    r->delete_length = (short) delete_len;
+
+    if (insert_len == 0) {
+        r->char_storage = -1;
+        return 0;
+    } else {
+        r->char_storage = state->undo_char_point;
+        state->undo_char_point = (short)(state->undo_char_point +  insert_len);
+        return &state->undo_char[r->char_storage];
+    }
+}
+NK_API void
+nk_textedit_undo(struct nk_text_edit *state)
+{
+    struct nk_text_undo_state *s = &state->undo;
+    struct nk_text_undo_record u, *r;
+    if (s->undo_point == 0)
+        return;
+
+    /* we need to do two things: apply the undo record, and create a redo record */
+    u = s->undo_rec[s->undo_point-1];
+    r = &s->undo_rec[s->redo_point-1];
+    r->char_storage = -1;
+
+    r->insert_length = u.delete_length;
+    r->delete_length = u.insert_length;
+    r->where = u.where;
+
+    if (u.delete_length)
+    {
+       /*   if the undo record says to delete characters, then the redo record will
+            need to re-insert the characters that get deleted, so we need to store
+            them.
+            there are three cases:
+                - there's enough room to store the characters
+                - characters stored for *redoing* don't leave room for redo
+                - characters stored for *undoing* don't leave room for redo
+            if the last is true, we have to bail */
+        if (s->undo_char_point + u.delete_length >= NK_TEXTEDIT_UNDOCHARCOUNT) {
+            /* the undo records take up too much character space; there's no space
+            * to store the redo characters */
+            r->insert_length = 0;
+        } else {
+            int i;
+            /* there's definitely room to store the characters eventually */
+            while (s->undo_char_point + u.delete_length > s->redo_char_point) {
+                /* there's currently not enough room, so discard a redo record */
+                nk_textedit_discard_redo(s);
+                /* should never happen: */
+                if (s->redo_point == NK_TEXTEDIT_UNDOSTATECOUNT)
+                    return;
+            }
+
+            r = &s->undo_rec[s->redo_point-1];
+            r->char_storage = (short)(s->redo_char_point - u.delete_length);
+            s->redo_char_point = (short)(s->redo_char_point -  u.delete_length);
+
+            /* now save the characters */
+            for (i=0; i < u.delete_length; ++i)
+                s->undo_char[r->char_storage + i] =
+                    nk_str_rune_at(&state->string, u.where + i);
+        }
+        /* now we can carry out the deletion */
+        nk_str_delete_runes(&state->string, u.where, u.delete_length);
+    }
+
+    /* check type of recorded action: */
+    if (u.insert_length) {
+        /* easy case: was a deletion, so we need to insert n characters */
+        nk_str_insert_text_runes(&state->string, u.where,
+            &s->undo_char[u.char_storage], u.insert_length);
+        s->undo_char_point = (short)(s->undo_char_point - u.insert_length);
+    }
+    state->cursor = (short)(u.where + u.insert_length);
+
+    s->undo_point--;
+    s->redo_point--;
+}
+NK_API void
+nk_textedit_redo(struct nk_text_edit *state)
+{
+    struct nk_text_undo_state *s = &state->undo;
+    struct nk_text_undo_record *u, r;
+    if (s->redo_point == NK_TEXTEDIT_UNDOSTATECOUNT)
+        return;
+
+    /* we need to do two things: apply the redo record, and create an undo record */
+    u = &s->undo_rec[s->undo_point];
+    r = s->undo_rec[s->redo_point];
+
+    /* we KNOW there must be room for the undo record, because the redo record
+    was derived from an undo record */
+    u->delete_length = r.insert_length;
+    u->insert_length = r.delete_length;
+    u->where = r.where;
+    u->char_storage = -1;
+
+    if (r.delete_length) {
+        /* the redo record requires us to delete characters, so the undo record
+        needs to store the characters */
+        if (s->undo_char_point + u->insert_length > s->redo_char_point) {
+            u->insert_length = 0;
+            u->delete_length = 0;
+        } else {
+            int i;
+            u->char_storage = s->undo_char_point;
+            s->undo_char_point = (short)(s->undo_char_point + u->insert_length);
+
+            /* now save the characters */
+            for (i=0; i < u->insert_length; ++i) {
+                s->undo_char[u->char_storage + i] =
+                    nk_str_rune_at(&state->string, u->where + i);
+            }
+        }
+        nk_str_delete_runes(&state->string, r.where, r.delete_length);
+    }
+
+    if (r.insert_length) {
+        /* easy case: need to insert n characters */
+        nk_str_insert_text_runes(&state->string, r.where,
+            &s->undo_char[r.char_storage], r.insert_length);
+    }
+    state->cursor = r.where + r.insert_length;
+
+    s->undo_point++;
+    s->redo_point++;
+}
+NK_INTERN void
+nk_textedit_makeundo_insert(struct nk_text_edit *state, int where, int length)
+{
+    nk_textedit_createundo(&state->undo, where, 0, length);
+}
+NK_INTERN void
+nk_textedit_makeundo_delete(struct nk_text_edit *state, int where, int length)
+{
+    int i;
+    nk_rune *p = nk_textedit_createundo(&state->undo, where, length, 0);
+    if (p) {
+        for (i=0; i < length; ++i)
+            p[i] = nk_str_rune_at(&state->string, where+i);
+    }
+}
+NK_INTERN void
+nk_textedit_makeundo_replace(struct nk_text_edit *state, int where,
+    int old_length, int new_length)
+{
+    int i;
+    nk_rune *p = nk_textedit_createundo(&state->undo, where, old_length, new_length);
+    if (p) {
+        for (i=0; i < old_length; ++i)
+            p[i] = nk_str_rune_at(&state->string, where+i);
+    }
+}
+NK_LIB void
+nk_textedit_clear_state(struct nk_text_edit *state, enum nk_text_edit_type type,
+    nk_plugin_filter filter)
+{
+    /* reset the state to default */
+   state->undo.undo_point = 0;
+   state->undo.undo_char_point = 0;
+   state->undo.redo_point = NK_TEXTEDIT_UNDOSTATECOUNT;
+   state->undo.redo_char_point = NK_TEXTEDIT_UNDOCHARCOUNT;
+   state->select_end = state->select_start = 0;
+   state->cursor = 0;
+   state->has_preferred_x = 0;
+   state->preferred_x = 0;
+   state->cursor_at_end_of_line = 0;
+   state->initialized = 1;
+   state->single_line = (unsigned char)(type == NK_TEXT_EDIT_SINGLE_LINE);
+   state->mode = NK_TEXT_EDIT_MODE_VIEW;
+   state->filter = filter;
+   state->scrollbar = nk_vec2(0,0);
+}
+NK_API void
+nk_textedit_init_fixed(struct nk_text_edit *state, void *memory, nk_size size)
+{
+    NK_ASSERT(state);
+    NK_ASSERT(memory);
+    if (!state || !memory || !size) return;
+    NK_MEMSET(state, 0, sizeof(struct nk_text_edit));
+    nk_textedit_clear_state(state, NK_TEXT_EDIT_SINGLE_LINE, 0);
+    nk_str_init_fixed(&state->string, memory, size);
+}
+NK_API void
+nk_textedit_init(struct nk_text_edit *state, struct nk_allocator *alloc, nk_size size)
+{
+    NK_ASSERT(state);
+    NK_ASSERT(alloc);
+    if (!state || !alloc) return;
+    NK_MEMSET(state, 0, sizeof(struct nk_text_edit));
+    nk_textedit_clear_state(state, NK_TEXT_EDIT_SINGLE_LINE, 0);
+    nk_str_init(&state->string, alloc, size);
+}
+#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
+NK_API void
+nk_textedit_init_default(struct nk_text_edit *state)
+{
+    NK_ASSERT(state);
+    if (!state) return;
+    NK_MEMSET(state, 0, sizeof(struct nk_text_edit));
+    nk_textedit_clear_state(state, NK_TEXT_EDIT_SINGLE_LINE, 0);
+    nk_str_init_default(&state->string);
+}
+#endif
+NK_API void
+nk_textedit_select_all(struct nk_text_edit *state)
+{
+    NK_ASSERT(state);
+    state->select_start = 0;
+    state->select_end = state->string.len;
+}
+NK_API void
+nk_textedit_free(struct nk_text_edit *state)
+{
+    NK_ASSERT(state);
+    if (!state) return;
+    nk_str_free(&state->string);
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                          FILTER
+ *
+ * ===============================================================*/
+NK_API int
+nk_filter_default(const struct nk_text_edit *box, nk_rune unicode)
+{
+    NK_UNUSED(unicode);
+    NK_UNUSED(box);
+    return nk_true;
+}
+NK_API int
+nk_filter_ascii(const struct nk_text_edit *box, nk_rune unicode)
+{
+    NK_UNUSED(box);
+    if (unicode > 128) return nk_false;
+    else return nk_true;
+}
+NK_API int
+nk_filter_float(const struct nk_text_edit *box, nk_rune unicode)
+{
+    NK_UNUSED(box);
+    if ((unicode < '0' || unicode > '9') && unicode != '.' && unicode != '-')
+        return nk_false;
+    else return nk_true;
+}
+NK_API int
+nk_filter_decimal(const struct nk_text_edit *box, nk_rune unicode)
+{
+    NK_UNUSED(box);
+    if ((unicode < '0' || unicode > '9') && unicode != '-')
+        return nk_false;
+    else return nk_true;
+}
+NK_API int
+nk_filter_hex(const struct nk_text_edit *box, nk_rune unicode)
+{
+    NK_UNUSED(box);
+    if ((unicode < '0' || unicode > '9') &&
+        (unicode < 'a' || unicode > 'f') &&
+        (unicode < 'A' || unicode > 'F'))
+        return nk_false;
+    else return nk_true;
+}
+NK_API int
+nk_filter_oct(const struct nk_text_edit *box, nk_rune unicode)
+{
+    NK_UNUSED(box);
+    if (unicode < '0' || unicode > '7')
+        return nk_false;
+    else return nk_true;
+}
+NK_API int
+nk_filter_binary(const struct nk_text_edit *box, nk_rune unicode)
+{
+    NK_UNUSED(box);
+    if (unicode != '0' && unicode != '1')
+        return nk_false;
+    else return nk_true;
+}
+
+/* ===============================================================
+ *
+ *                          EDIT
+ *
+ * ===============================================================*/
+NK_LIB void
+nk_edit_draw_text(struct nk_command_buffer *out,
+    const struct nk_style_edit *style, float pos_x, float pos_y,
+    float x_offset, const char *text, int byte_len, float row_height,
+    const struct nk_user_font *font, struct nk_color background,
+    struct nk_color foreground, int is_selected)
+{
+    NK_ASSERT(out);
+    NK_ASSERT(font);
+    NK_ASSERT(style);
+    if (!text || !byte_len || !out || !style) return;
+
+    {int glyph_len = 0;
+    nk_rune unicode = 0;
+    int text_len = 0;
+    float line_width = 0;
+    float glyph_width;
+    const char *line = text;
+    float line_offset = 0;
+    int line_count = 0;
+
+    struct nk_text txt;
+    txt.padding = nk_vec2(0,0);
+    txt.background = background;
+    txt.text = foreground;
+
+    glyph_len = nk_utf_decode(text+text_len, &unicode, byte_len-text_len);
+    if (!glyph_len) return;
+    while ((text_len < byte_len) && glyph_len)
+    {
+        if (unicode == '\n') {
+            /* new line separator so draw previous line */
+            struct nk_rect label;
+            label.y = pos_y + line_offset;
+            label.h = row_height;
+            label.w = line_width;
+            label.x = pos_x;
+            if (!line_count)
+                label.x += x_offset;
+
+            if (is_selected) /* selection needs to draw different background color */
+                nk_fill_rect(out, label, 0, background);
+            nk_widget_text(out, label, line, (int)((text + text_len) - line),
+                &txt, NK_TEXT_CENTERED, font);
+
+            text_len++;
+            line_count++;
+            line_width = 0;
+            line = text + text_len;
+            line_offset += row_height;
+            glyph_len = nk_utf_decode(text + text_len, &unicode, (int)(byte_len-text_len));
+            continue;
+        }
+        if (unicode == '\r') {
+            text_len++;
+            glyph_len = nk_utf_decode(text + text_len, &unicode, byte_len-text_len);
+            continue;
+        }
+        glyph_width = font->width(font->userdata, font->height, text+text_len, glyph_len);
+        line_width += (float)glyph_width;
+        text_len += glyph_len;
+        glyph_len = nk_utf_decode(text + text_len, &unicode, byte_len-text_len);
+        continue;
+    }
+    if (line_width > 0) {
+        /* draw last line */
+        struct nk_rect label;
+        label.y = pos_y + line_offset;
+        label.h = row_height;
+        label.w = line_width;
+        label.x = pos_x;
+        if (!line_count)
+            label.x += x_offset;
+
+        if (is_selected)
+            nk_fill_rect(out, label, 0, background);
+        nk_widget_text(out, label, line, (int)((text + text_len) - line),
+            &txt, NK_TEXT_LEFT, font);
+    }}
+}
+NK_LIB nk_flags
+nk_do_edit(nk_flags *state, struct nk_command_buffer *out,
+    struct nk_rect bounds, nk_flags flags, nk_plugin_filter filter,
+    struct nk_text_edit *edit, const struct nk_style_edit *style,
+    struct nk_input *in, const struct nk_user_font *font)
+{
+    struct nk_rect area;
+    nk_flags ret = 0;
+    float row_height;
+    char prev_state = 0;
+    char is_hovered = 0;
+    char select_all = 0;
+    char cursor_follow = 0;
+    struct nk_rect old_clip;
+    struct nk_rect clip;
+
+    NK_ASSERT(state);
+    NK_ASSERT(out);
+    NK_ASSERT(style);
+    if (!state || !out || !style)
+        return ret;
+
+    /* visible text area calculation */
+    area.x = bounds.x + style->padding.x + style->border;
+    area.y = bounds.y + style->padding.y + style->border;
+    area.w = bounds.w - (2.0f * style->padding.x + 2 * style->border);
+    area.h = bounds.h - (2.0f * style->padding.y + 2 * style->border);
+    if (flags & NK_EDIT_MULTILINE)
+        area.w = NK_MAX(0, area.w - style->scrollbar_size.x);
+    row_height = (flags & NK_EDIT_MULTILINE)? font->height + style->row_padding: area.h;
+
+    /* calculate clipping rectangle */
+    old_clip = out->clip;
+    nk_unify(&clip, &old_clip, area.x, area.y, area.x + area.w, area.y + area.h);
+
+    /* update edit state */
+    prev_state = (char)edit->active;
+    is_hovered = (char)nk_input_is_mouse_hovering_rect(in, bounds);
+    if (in && in->mouse.buttons[NK_BUTTON_LEFT].clicked && in->mouse.buttons[NK_BUTTON_LEFT].down) {
+        edit->active = NK_INBOX(in->mouse.pos.x, in->mouse.pos.y,
+                                bounds.x, bounds.y, bounds.w, bounds.h);
+    }
+
+    /* (de)activate text editor */
+    if (!prev_state && edit->active) {
+        const enum nk_text_edit_type type = (flags & NK_EDIT_MULTILINE) ?
+            NK_TEXT_EDIT_MULTI_LINE: NK_TEXT_EDIT_SINGLE_LINE;
+        nk_textedit_clear_state(edit, type, filter);
+        if (flags & NK_EDIT_AUTO_SELECT)
+            select_all = nk_true;
+        if (flags & NK_EDIT_GOTO_END_ON_ACTIVATE) {
+            edit->cursor = edit->string.len;
+            in = 0;
+        }
+    } else if (!edit->active) edit->mode = NK_TEXT_EDIT_MODE_VIEW;
+    if (flags & NK_EDIT_READ_ONLY)
+        edit->mode = NK_TEXT_EDIT_MODE_VIEW;
+    else if (flags & NK_EDIT_ALWAYS_INSERT_MODE)
+        edit->mode = NK_TEXT_EDIT_MODE_INSERT;
+
+    ret = (edit->active) ? NK_EDIT_ACTIVE: NK_EDIT_INACTIVE;
+    if (prev_state != edit->active)
+        ret |= (edit->active) ? NK_EDIT_ACTIVATED: NK_EDIT_DEACTIVATED;
+
+    /* handle user input */
+    if (edit->active && in)
+    {
+        int shift_mod = in->keyboard.keys[NK_KEY_SHIFT].down;
+        const float mouse_x = (in->mouse.pos.x - area.x) + edit->scrollbar.x;
+        const float mouse_y = (in->mouse.pos.y - area.y) + edit->scrollbar.y;
+
+        /* mouse click handler */
+        is_hovered = (char)nk_input_is_mouse_hovering_rect(in, area);
+        if (select_all) {
+            nk_textedit_select_all(edit);
+        } else if (is_hovered && in->mouse.buttons[NK_BUTTON_LEFT].down &&
+            in->mouse.buttons[NK_BUTTON_LEFT].clicked) {
+            nk_textedit_click(edit, mouse_x, mouse_y, font, row_height);
+        } else if (is_hovered && in->mouse.buttons[NK_BUTTON_LEFT].down &&
+            (in->mouse.delta.x != 0.0f || in->mouse.delta.y != 0.0f)) {
+            nk_textedit_drag(edit, mouse_x, mouse_y, font, row_height);
+            cursor_follow = nk_true;
+        } else if (is_hovered && in->mouse.buttons[NK_BUTTON_RIGHT].clicked &&
+            in->mouse.buttons[NK_BUTTON_RIGHT].down) {
+            nk_textedit_key(edit, NK_KEY_TEXT_WORD_LEFT, nk_false, font, row_height);
+            nk_textedit_key(edit, NK_KEY_TEXT_WORD_RIGHT, nk_true, font, row_height);
+            cursor_follow = nk_true;
+        }
+
+        {int i; /* keyboard input */
+        int old_mode = edit->mode;
+        for (i = 0; i < NK_KEY_MAX; ++i) {
+            if (i == NK_KEY_ENTER || i == NK_KEY_TAB) continue; /* special case */
+            if (nk_input_is_key_pressed(in, (enum nk_keys)i)) {
+                nk_textedit_key(edit, (enum nk_keys)i, shift_mod, font, row_height);
+                cursor_follow = nk_true;
+            }
+        }
+        if (old_mode != edit->mode) {
+            in->keyboard.text_len = 0;
+        }}
+
+        /* text input */
+        edit->filter = filter;
+        if (in->keyboard.text_len) {
+            nk_textedit_text(edit, in->keyboard.text, in->keyboard.text_len);
+            cursor_follow = nk_true;
+            in->keyboard.text_len = 0;
+        }
+
+        /* enter key handler */
+        if (nk_input_is_key_pressed(in, NK_KEY_ENTER)) {
+            cursor_follow = nk_true;
+            if (flags & NK_EDIT_CTRL_ENTER_NEWLINE && shift_mod)
+                nk_textedit_text(edit, "\n", 1);
+            else if (flags & NK_EDIT_SIG_ENTER)
+                ret |= NK_EDIT_COMMITED;
+            else nk_textedit_text(edit, "\n", 1);
+        }
+
+        /* cut & copy handler */
+        {int copy= nk_input_is_key_pressed(in, NK_KEY_COPY);
+        int cut = nk_input_is_key_pressed(in, NK_KEY_CUT);
+        if ((copy || cut) && (flags & NK_EDIT_CLIPBOARD))
+        {
+            int glyph_len;
+            nk_rune unicode;
+            const char *text;
+            int b = edit->select_start;
+            int e = edit->select_end;
+
+            int begin = NK_MIN(b, e);
+            int end = NK_MAX(b, e);
+            text = nk_str_at_const(&edit->string, begin, &unicode, &glyph_len);
+            if (edit->clip.copy)
+                edit->clip.copy(edit->clip.userdata, text, end - begin);
+            if (cut && !(flags & NK_EDIT_READ_ONLY)){
+                nk_textedit_cut(edit);
+                cursor_follow = nk_true;
+            }
+        }}
+
+        /* paste handler */
+        {int paste = nk_input_is_key_pressed(in, NK_KEY_PASTE);
+        if (paste && (flags & NK_EDIT_CLIPBOARD) && edit->clip.paste) {
+            edit->clip.paste(edit->clip.userdata, edit);
+            cursor_follow = nk_true;
+        }}
+
+        /* tab handler */
+        {int tab = nk_input_is_key_pressed(in, NK_KEY_TAB);
+        if (tab && (flags & NK_EDIT_ALLOW_TAB)) {
+            nk_textedit_text(edit, "    ", 4);
+            cursor_follow = nk_true;
+        }}
+    }
+
+    /* set widget state */
+    if (edit->active)
+        *state = NK_WIDGET_STATE_ACTIVE;
+    else nk_widget_state_reset(state);
+
+    if (is_hovered)
+        *state |= NK_WIDGET_STATE_HOVERED;
+
+    /* DRAW EDIT */
+    {const char *text = nk_str_get_const(&edit->string);
+    int len = nk_str_len_char(&edit->string);
+
+    {/* select background colors/images  */
+    const struct nk_style_item *background;
+    if (*state & NK_WIDGET_STATE_ACTIVED)
+        background = &style->active;
+    else if (*state & NK_WIDGET_STATE_HOVER)
+        background = &style->hover;
+    else background = &style->normal;
+
+    /* draw background frame */
+    if (background->type == NK_STYLE_ITEM_COLOR) {
+        nk_stroke_rect(out, bounds, style->rounding, style->border, style->border_color);
+        nk_fill_rect(out, bounds, style->rounding, background->data.color);
+    } else nk_draw_image(out, bounds, &background->data.image, nk_white);}
+
+    area.w = NK_MAX(0, area.w - style->cursor_size);
+    if (edit->active)
+    {
+        int total_lines = 1;
+        struct nk_vec2 text_size = nk_vec2(0,0);
+
+        /* text pointer positions */
+        const char *cursor_ptr = 0;
+        const char *select_begin_ptr = 0;
+        const char *select_end_ptr = 0;
+
+        /* 2D pixel positions */
+        struct nk_vec2 cursor_pos = nk_vec2(0,0);
+        struct nk_vec2 selection_offset_start = nk_vec2(0,0);
+        struct nk_vec2 selection_offset_end = nk_vec2(0,0);
+
+        int selection_begin = NK_MIN(edit->select_start, edit->select_end);
+        int selection_end = NK_MAX(edit->select_start, edit->select_end);
+
+        /* calculate total line count + total space + cursor/selection position */
+        float line_width = 0.0f;
+        if (text && len)
+        {
+            /* utf8 encoding */
+            float glyph_width;
+            int glyph_len = 0;
+            nk_rune unicode = 0;
+            int text_len = 0;
+            int glyphs = 0;
+            int row_begin = 0;
+
+            glyph_len = nk_utf_decode(text, &unicode, len);
+            glyph_width = font->width(font->userdata, font->height, text, glyph_len);
+            line_width = 0;
+
+            /* iterate all lines */
+            while ((text_len < len) && glyph_len)
+            {
+                /* set cursor 2D position and line */
+                if (!cursor_ptr && glyphs == edit->cursor)
+                {
+                    int glyph_offset;
+                    struct nk_vec2 out_offset;
+                    struct nk_vec2 row_size;
+                    const char *remaining;
+
+                    /* calculate 2d position */
+                    cursor_pos.y = (float)(total_lines-1) * row_height;
+                    row_size = nk_text_calculate_text_bounds(font, text+row_begin,
+                                text_len-row_begin, row_height, &remaining,
+                                &out_offset, &glyph_offset, NK_STOP_ON_NEW_LINE);
+                    cursor_pos.x = row_size.x;
+                    cursor_ptr = text + text_len;
+                }
+
+                /* set start selection 2D position and line */
+                if (!select_begin_ptr && edit->select_start != edit->select_end &&
+                    glyphs == selection_begin)
+                {
+                    int glyph_offset;
+                    struct nk_vec2 out_offset;
+                    struct nk_vec2 row_size;
+                    const char *remaining;
+
+                    /* calculate 2d position */
+                    selection_offset_start.y = (float)(NK_MAX(total_lines-1,0)) * row_height;
+                    row_size = nk_text_calculate_text_bounds(font, text+row_begin,
+                                text_len-row_begin, row_height, &remaining,
+                                &out_offset, &glyph_offset, NK_STOP_ON_NEW_LINE);
+                    selection_offset_start.x = row_size.x;
+                    select_begin_ptr = text + text_len;
+                }
+
+                /* set end selection 2D position and line */
+                if (!select_end_ptr && edit->select_start != edit->select_end &&
+                    glyphs == selection_end)
+                {
+                    int glyph_offset;
+                    struct nk_vec2 out_offset;
+                    struct nk_vec2 row_size;
+                    const char *remaining;
+
+                    /* calculate 2d position */
+                    selection_offset_end.y = (float)(total_lines-1) * row_height;
+                    row_size = nk_text_calculate_text_bounds(font, text+row_begin,
+                                text_len-row_begin, row_height, &remaining,
+                                &out_offset, &glyph_offset, NK_STOP_ON_NEW_LINE);
+                    selection_offset_end.x = row_size.x;
+                    select_end_ptr = text + text_len;
+                }
+                if (unicode == '\n') {
+                    text_size.x = NK_MAX(text_size.x, line_width);
+                    total_lines++;
+                    line_width = 0;
+                    text_len++;
+                    glyphs++;
+                    row_begin = text_len;
+                    glyph_len = nk_utf_decode(text + text_len, &unicode, len-text_len);
+                    glyph_width = font->width(font->userdata, font->height, text+text_len, glyph_len);
+                    continue;
+                }
+
+                glyphs++;
+                text_len += glyph_len;
+                line_width += (float)glyph_width;
+
+                glyph_len = nk_utf_decode(text + text_len, &unicode, len-text_len);
+                glyph_width = font->width(font->userdata, font->height,
+                    text+text_len, glyph_len);
+                continue;
+            }
+            text_size.y = (float)total_lines * row_height;
+
+            /* handle case when cursor is at end of text buffer */
+            if (!cursor_ptr && edit->cursor == edit->string.len) {
+                cursor_pos.x = line_width;
+                cursor_pos.y = text_size.y - row_height;
+            }
+        }
+        {
+            /* scrollbar */
+            if (cursor_follow)
+            {
+                /* update scrollbar to follow cursor */
+                if (!(flags & NK_EDIT_NO_HORIZONTAL_SCROLL)) {
+                    /* horizontal scroll */
+                    const float scroll_increment = area.w * 0.25f;
+                    if (cursor_pos.x < edit->scrollbar.x)
+                        edit->scrollbar.x = (float)(int)NK_MAX(0.0f, cursor_pos.x - scroll_increment);
+                    if (cursor_pos.x >= edit->scrollbar.x + area.w)
+                        edit->scrollbar.x = (float)(int)NK_MAX(0.0f, edit->scrollbar.x + scroll_increment);
+                } else edit->scrollbar.x = 0;
+
+                if (flags & NK_EDIT_MULTILINE) {
+                    /* vertical scroll */
+                    if (cursor_pos.y < edit->scrollbar.y)
+                        edit->scrollbar.y = NK_MAX(0.0f, cursor_pos.y - row_height);
+                    if (cursor_pos.y >= edit->scrollbar.y + area.h)
+                        edit->scrollbar.y = edit->scrollbar.y + row_height;
+                } else edit->scrollbar.y = 0;
+            }
+
+            /* scrollbar widget */
+            if (flags & NK_EDIT_MULTILINE)
+            {
+                nk_flags ws;
+                struct nk_rect scroll;
+                float scroll_target;
+                float scroll_offset;
+                float scroll_step;
+                float scroll_inc;
+
+                scroll = area;
+                scroll.x = (bounds.x + bounds.w - style->border) - style->scrollbar_size.x;
+                scroll.w = style->scrollbar_size.x;
+
+                scroll_offset = edit->scrollbar.y;
+                scroll_step = scroll.h * 0.10f;
+                scroll_inc = scroll.h * 0.01f;
+                scroll_target = text_size.y;
+                edit->scrollbar.y = nk_do_scrollbarv(&ws, out, scroll, 0,
+                        scroll_offset, scroll_target, scroll_step, scroll_inc,
+                        &style->scrollbar, in, font);
+            }
+        }
+
+        /* draw text */
+        {struct nk_color background_color;
+        struct nk_color text_color;
+        struct nk_color sel_background_color;
+        struct nk_color sel_text_color;
+        struct nk_color cursor_color;
+        struct nk_color cursor_text_color;
+        const struct nk_style_item *background;
+        nk_push_scissor(out, clip);
+
+        /* select correct colors to draw */
+        if (*state & NK_WIDGET_STATE_ACTIVED) {
+            background = &style->active;
+            text_color = style->text_active;
+            sel_text_color = style->selected_text_hover;
+            sel_background_color = style->selected_hover;
+            cursor_color = style->cursor_hover;
+            cursor_text_color = style->cursor_text_hover;
+        } else if (*state & NK_WIDGET_STATE_HOVER) {
+            background = &style->hover;
+            text_color = style->text_hover;
+            sel_text_color = style->selected_text_hover;
+            sel_background_color = style->selected_hover;
+            cursor_text_color = style->cursor_text_hover;
+            cursor_color = style->cursor_hover;
+        } else {
+            background = &style->normal;
+            text_color = style->text_normal;
+            sel_text_color = style->selected_text_normal;
+            sel_background_color = style->selected_normal;
+            cursor_color = style->cursor_normal;
+            cursor_text_color = style->cursor_text_normal;
+        }
+        if (background->type == NK_STYLE_ITEM_IMAGE)
+            background_color = nk_rgba(0,0,0,0);
+        else background_color = background->data.color;
+
+
+        if (edit->select_start == edit->select_end) {
+            /* no selection so just draw the complete text */
+            const char *begin = nk_str_get_const(&edit->string);
+            int l = nk_str_len_char(&edit->string);
+            nk_edit_draw_text(out, style, area.x - edit->scrollbar.x,
+                area.y - edit->scrollbar.y, 0, begin, l, row_height, font,
+                background_color, text_color, nk_false);
+        } else {
+            /* edit has selection so draw 1-3 text chunks */
+            if (edit->select_start != edit->select_end && selection_begin > 0){
+                /* draw unselected text before selection */
+                const char *begin = nk_str_get_const(&edit->string);
+                NK_ASSERT(select_begin_ptr);
+                nk_edit_draw_text(out, style, area.x - edit->scrollbar.x,
+                    area.y - edit->scrollbar.y, 0, begin, (int)(select_begin_ptr - begin),
+                    row_height, font, background_color, text_color, nk_false);
+            }
+            if (edit->select_start != edit->select_end) {
+                /* draw selected text */
+                NK_ASSERT(select_begin_ptr);
+                if (!select_end_ptr) {
+                    const char *begin = nk_str_get_const(&edit->string);
+                    select_end_ptr = begin + nk_str_len_char(&edit->string);
+                }
+                nk_edit_draw_text(out, style,
+                    area.x - edit->scrollbar.x,
+                    area.y + selection_offset_start.y - edit->scrollbar.y,
+                    selection_offset_start.x,
+                    select_begin_ptr, (int)(select_end_ptr - select_begin_ptr),
+                    row_height, font, sel_background_color, sel_text_color, nk_true);
+            }
+            if ((edit->select_start != edit->select_end &&
+                selection_end < edit->string.len))
+            {
+                /* draw unselected text after selected text */
+                const char *begin = select_end_ptr;
+                const char *end = nk_str_get_const(&edit->string) +
+                                    nk_str_len_char(&edit->string);
+                NK_ASSERT(select_end_ptr);
+                nk_edit_draw_text(out, style,
+                    area.x - edit->scrollbar.x,
+                    area.y + selection_offset_end.y - edit->scrollbar.y,
+                    selection_offset_end.x,
+                    begin, (int)(end - begin), row_height, font,
+                    background_color, text_color, nk_true);
+            }
+        }
+
+        /* cursor */
+        if (edit->select_start == edit->select_end)
+        {
+            if (edit->cursor >= nk_str_len(&edit->string) ||
+                (cursor_ptr && *cursor_ptr == '\n')) {
+                /* draw cursor at end of line */
+                struct nk_rect cursor;
+                cursor.w = style->cursor_size;
+                cursor.h = font->height;
+                cursor.x = area.x + cursor_pos.x - edit->scrollbar.x;
+                cursor.y = area.y + cursor_pos.y + row_height/2.0f - cursor.h/2.0f;
+                cursor.y -= edit->scrollbar.y;
+                nk_fill_rect(out, cursor, 0, cursor_color);
+            } else {
+                /* draw cursor inside text */
+                int glyph_len;
+                struct nk_rect label;
+                struct nk_text txt;
+
+                nk_rune unicode;
+                NK_ASSERT(cursor_ptr);
+                glyph_len = nk_utf_decode(cursor_ptr, &unicode, 4);
+
+                label.x = area.x + cursor_pos.x - edit->scrollbar.x;
+                label.y = area.y + cursor_pos.y - edit->scrollbar.y;
+                label.w = font->width(font->userdata, font->height, cursor_ptr, glyph_len);
+                label.h = row_height;
+
+                txt.padding = nk_vec2(0,0);
+                txt.background = cursor_color;;
+                txt.text = cursor_text_color;
+                nk_fill_rect(out, label, 0, cursor_color);
+                nk_widget_text(out, label, cursor_ptr, glyph_len, &txt, NK_TEXT_LEFT, font);
+            }
+        }}
+    } else {
+        /* not active so just draw text */
+        int l = nk_str_len_char(&edit->string);
+        const char *begin = nk_str_get_const(&edit->string);
+
+        const struct nk_style_item *background;
+        struct nk_color background_color;
+        struct nk_color text_color;
+        nk_push_scissor(out, clip);
+        if (*state & NK_WIDGET_STATE_ACTIVED) {
+            background = &style->active;
+            text_color = style->text_active;
+        } else if (*state & NK_WIDGET_STATE_HOVER) {
+            background = &style->hover;
+            text_color = style->text_hover;
+        } else {
+            background = &style->normal;
+            text_color = style->text_normal;
+        }
+        if (background->type == NK_STYLE_ITEM_IMAGE)
+            background_color = nk_rgba(0,0,0,0);
+        else background_color = background->data.color;
+        nk_edit_draw_text(out, style, area.x - edit->scrollbar.x,
+            area.y - edit->scrollbar.y, 0, begin, l, row_height, font,
+            background_color, text_color, nk_false);
+    }
+    nk_push_scissor(out, old_clip);}
+    return ret;
+}
+NK_API void
+nk_edit_focus(struct nk_context *ctx, nk_flags flags)
+{
+    nk_hash hash;
+    struct nk_window *win;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current) return;
+
+    win = ctx->current;
+    hash = win->edit.seq;
+    win->edit.active = nk_true;
+    win->edit.name = hash;
+    if (flags & NK_EDIT_ALWAYS_INSERT_MODE)
+        win->edit.mode = NK_TEXT_EDIT_MODE_INSERT;
+}
+NK_API void
+nk_edit_unfocus(struct nk_context *ctx)
+{
+    struct nk_window *win;
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current) return;
+
+    win = ctx->current;
+    win->edit.active = nk_false;
+    win->edit.name = 0;
+}
+NK_API nk_flags
+nk_edit_string(struct nk_context *ctx, nk_flags flags,
+    char *memory, int *len, int max, nk_plugin_filter filter)
+{
+    nk_hash hash;
+    nk_flags state;
+    struct nk_text_edit *edit;
+    struct nk_window *win;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(memory);
+    NK_ASSERT(len);
+    if (!ctx || !memory || !len)
+        return 0;
+
+    filter = (!filter) ? nk_filter_default: filter;
+    win = ctx->current;
+    hash = win->edit.seq;
+    edit = &ctx->text_edit;
+    nk_textedit_clear_state(&ctx->text_edit, (flags & NK_EDIT_MULTILINE)?
+        NK_TEXT_EDIT_MULTI_LINE: NK_TEXT_EDIT_SINGLE_LINE, filter);
+
+    if (win->edit.active && hash == win->edit.name) {
+        if (flags & NK_EDIT_NO_CURSOR)
+            edit->cursor = nk_utf_len(memory, *len);
+        else edit->cursor = win->edit.cursor;
+        if (!(flags & NK_EDIT_SELECTABLE)) {
+            edit->select_start = win->edit.cursor;
+            edit->select_end = win->edit.cursor;
+        } else {
+            edit->select_start = win->edit.sel_start;
+            edit->select_end = win->edit.sel_end;
+        }
+        edit->mode = win->edit.mode;
+        edit->scrollbar.x = (float)win->edit.scrollbar.x;
+        edit->scrollbar.y = (float)win->edit.scrollbar.y;
+        edit->active = nk_true;
+    } else edit->active = nk_false;
+
+    max = NK_MAX(1, max);
+    *len = NK_MIN(*len, max-1);
+    nk_str_init_fixed(&edit->string, memory, (nk_size)max);
+    edit->string.buffer.allocated = (nk_size)*len;
+    edit->string.len = nk_utf_len(memory, *len);
+    state = nk_edit_buffer(ctx, flags, edit, filter);
+    *len = (int)edit->string.buffer.allocated;
+
+    if (edit->active) {
+        win->edit.cursor = edit->cursor;
+        win->edit.sel_start = edit->select_start;
+        win->edit.sel_end = edit->select_end;
+        win->edit.mode = edit->mode;
+        win->edit.scrollbar.x = (nk_uint)edit->scrollbar.x;
+        win->edit.scrollbar.y = (nk_uint)edit->scrollbar.y;
+    } return state;
+}
+NK_API nk_flags
+nk_edit_buffer(struct nk_context *ctx, nk_flags flags,
+    struct nk_text_edit *edit, nk_plugin_filter filter)
+{
+    struct nk_window *win;
+    struct nk_style *style;
+    struct nk_input *in;
+
+    enum nk_widget_layout_states state;
+    struct nk_rect bounds;
+
+    nk_flags ret_flags = 0;
+    unsigned char prev_state;
+    nk_hash hash;
+
+    /* make sure correct values */
+    NK_ASSERT(ctx);
+    NK_ASSERT(edit);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    style = &ctx->style;
+    state = nk_widget(&bounds, ctx);
+    if (!state) return state;
+    in = (win->layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+
+    /* check if edit is currently hot item */
+    hash = win->edit.seq++;
+    if (win->edit.active && hash == win->edit.name) {
+        if (flags & NK_EDIT_NO_CURSOR)
+            edit->cursor = edit->string.len;
+        if (!(flags & NK_EDIT_SELECTABLE)) {
+            edit->select_start = edit->cursor;
+            edit->select_end = edit->cursor;
+        }
+        if (flags & NK_EDIT_CLIPBOARD)
+            edit->clip = ctx->clip;
+        edit->active = (unsigned char)win->edit.active;
+    } else edit->active = nk_false;
+    edit->mode = win->edit.mode;
+
+    filter = (!filter) ? nk_filter_default: filter;
+    prev_state = (unsigned char)edit->active;
+    in = (flags & NK_EDIT_READ_ONLY) ? 0: in;
+    ret_flags = nk_do_edit(&ctx->last_widget_state, &win->buffer, bounds, flags,
+                    filter, edit, &style->edit, in, style->font);
+
+    if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER)
+        ctx->style.cursor_active = ctx->style.cursors[NK_CURSOR_TEXT];
+    if (edit->active && prev_state != edit->active) {
+        /* current edit is now hot */
+        win->edit.active = nk_true;
+        win->edit.name = hash;
+    } else if (prev_state && !edit->active) {
+        /* current edit is now cold */
+        win->edit.active = nk_false;
+    } return ret_flags;
+}
+NK_API nk_flags
+nk_edit_string_zero_terminated(struct nk_context *ctx, nk_flags flags,
+    char *buffer, int max, nk_plugin_filter filter)
+{
+    nk_flags result;
+    int len = nk_strlen(buffer);
+    result = nk_edit_string(ctx, flags, buffer, &len, max, filter);
+    buffer[NK_MIN(NK_MAX(max-1,0), len)] = '\0';
+    return result;
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              PROPERTY
+ *
+ * ===============================================================*/
+NK_LIB void
+nk_drag_behavior(nk_flags *state, const struct nk_input *in,
+    struct nk_rect drag, struct nk_property_variant *variant,
+    float inc_per_pixel)
+{
+    int left_mouse_down = in && in->mouse.buttons[NK_BUTTON_LEFT].down;
+    int left_mouse_click_in_cursor = in &&
+        nk_input_has_mouse_click_down_in_rect(in, NK_BUTTON_LEFT, drag, nk_true);
+
+    nk_widget_state_reset(state);
+    if (nk_input_is_mouse_hovering_rect(in, drag))
+        *state = NK_WIDGET_STATE_HOVERED;
+
+    if (left_mouse_down && left_mouse_click_in_cursor) {
+        float delta, pixels;
+        pixels = in->mouse.delta.x;
+        delta = pixels * inc_per_pixel;
+        switch (variant->kind) {
+        default: break;
+        case NK_PROPERTY_INT:
+            variant->value.i = variant->value.i + (int)delta;
+            variant->value.i = NK_CLAMP(variant->min_value.i, variant->value.i, variant->max_value.i);
+            break;
+        case NK_PROPERTY_FLOAT:
+            variant->value.f = variant->value.f + (float)delta;
+            variant->value.f = NK_CLAMP(variant->min_value.f, variant->value.f, variant->max_value.f);
+            break;
+        case NK_PROPERTY_DOUBLE:
+            variant->value.d = variant->value.d + (double)delta;
+            variant->value.d = NK_CLAMP(variant->min_value.d, variant->value.d, variant->max_value.d);
+            break;
+        }
+        *state = NK_WIDGET_STATE_ACTIVE;
+    }
+    if (*state & NK_WIDGET_STATE_HOVER && !nk_input_is_mouse_prev_hovering_rect(in, drag))
+        *state |= NK_WIDGET_STATE_ENTERED;
+    else if (nk_input_is_mouse_prev_hovering_rect(in, drag))
+        *state |= NK_WIDGET_STATE_LEFT;
+}
+NK_LIB void
+nk_property_behavior(nk_flags *ws, const struct nk_input *in,
+    struct nk_rect property,  struct nk_rect label, struct nk_rect edit,
+    struct nk_rect empty, int *state, struct nk_property_variant *variant,
+    float inc_per_pixel)
+{
+    if (in && *state == NK_PROPERTY_DEFAULT) {
+        if (nk_button_behavior(ws, edit, in, NK_BUTTON_DEFAULT))
+            *state = NK_PROPERTY_EDIT;
+        else if (nk_input_is_mouse_click_down_in_rect(in, NK_BUTTON_LEFT, label, nk_true))
+            *state = NK_PROPERTY_DRAG;
+        else if (nk_input_is_mouse_click_down_in_rect(in, NK_BUTTON_LEFT, empty, nk_true))
+            *state = NK_PROPERTY_DRAG;
+    }
+    if (*state == NK_PROPERTY_DRAG) {
+        nk_drag_behavior(ws, in, property, variant, inc_per_pixel);
+        if (!(*ws & NK_WIDGET_STATE_ACTIVED)) *state = NK_PROPERTY_DEFAULT;
+    }
+}
+NK_LIB void
+nk_draw_property(struct nk_command_buffer *out, const struct nk_style_property *style,
+    const struct nk_rect *bounds, const struct nk_rect *label, nk_flags state,
+    const char *name, int len, const struct nk_user_font *font)
+{
+    struct nk_text text;
+    const struct nk_style_item *background;
+
+    /* select correct background and text color */
+    if (state & NK_WIDGET_STATE_ACTIVED) {
+        background = &style->active;
+        text.text = style->label_active;
+    } else if (state & NK_WIDGET_STATE_HOVER) {
+        background = &style->hover;
+        text.text = style->label_hover;
+    } else {
+        background = &style->normal;
+        text.text = style->label_normal;
+    }
+
+    /* draw background */
+    if (background->type == NK_STYLE_ITEM_IMAGE) {
+        nk_draw_image(out, *bounds, &background->data.image, nk_white);
+        text.background = nk_rgba(0,0,0,0);
+    } else {
+        text.background = background->data.color;
+        nk_fill_rect(out, *bounds, style->rounding, background->data.color);
+        nk_stroke_rect(out, *bounds, style->rounding, style->border, background->data.color);
+    }
+
+    /* draw label */
+    text.padding = nk_vec2(0,0);
+    nk_widget_text(out, *label, name, len, &text, NK_TEXT_CENTERED, font);
+}
+NK_LIB void
+nk_do_property(nk_flags *ws,
+    struct nk_command_buffer *out, struct nk_rect property,
+    const char *name, struct nk_property_variant *variant,
+    float inc_per_pixel, char *buffer, int *len,
+    int *state, int *cursor, int *select_begin, int *select_end,
+    const struct nk_style_property *style,
+    enum nk_property_filter filter, struct nk_input *in,
+    const struct nk_user_font *font, struct nk_text_edit *text_edit,
+    enum nk_button_behavior behavior)
+{
+    const nk_plugin_filter filters[] = {
+        nk_filter_decimal,
+        nk_filter_float
+    };
+    int active, old;
+    int num_len, name_len;
+    char string[NK_MAX_NUMBER_BUFFER];
+    float size;
+
+    char *dst = 0;
+    int *length;
+
+    struct nk_rect left;
+    struct nk_rect right;
+    struct nk_rect label;
+    struct nk_rect edit;
+    struct nk_rect empty;
+
+    /* left decrement button */
+    left.h = font->height/2;
+    left.w = left.h;
+    left.x = property.x + style->border + style->padding.x;
+    left.y = property.y + style->border + property.h/2.0f - left.h/2;
+
+    /* text label */
+    name_len = nk_strlen(name);
+    size = font->width(font->userdata, font->height, name, name_len);
+    label.x = left.x + left.w + style->padding.x;
+    label.w = (float)size + 2 * style->padding.x;
+    label.y = property.y + style->border + style->padding.y;
+    label.h = property.h - (2 * style->border + 2 * style->padding.y);
+
+    /* right increment button */
+    right.y = left.y;
+    right.w = left.w;
+    right.h = left.h;
+    right.x = property.x + property.w - (right.w + style->padding.x);
+
+    /* edit */
+    if (*state == NK_PROPERTY_EDIT) {
+        size = font->width(font->userdata, font->height, buffer, *len);
+        size += style->edit.cursor_size;
+        length = len;
+        dst = buffer;
+    } else {
+        switch (variant->kind) {
+        default: break;
+        case NK_PROPERTY_INT:
+            nk_itoa(string, variant->value.i);
+            num_len = nk_strlen(string);
+            break;
+        case NK_PROPERTY_FLOAT:
+            NK_DTOA(string, (double)variant->value.f);
+            num_len = nk_string_float_limit(string, NK_MAX_FLOAT_PRECISION);
+            break;
+        case NK_PROPERTY_DOUBLE:
+            NK_DTOA(string, variant->value.d);
+            num_len = nk_string_float_limit(string, NK_MAX_FLOAT_PRECISION);
+            break;
+        }
+        size = font->width(font->userdata, font->height, string, num_len);
+        dst = string;
+        length = &num_len;
+    }
+
+    edit.w =  (float)size + 2 * style->padding.x;
+    edit.w = NK_MIN(edit.w, right.x - (label.x + label.w));
+    edit.x = right.x - (edit.w + style->padding.x);
+    edit.y = property.y + style->border;
+    edit.h = property.h - (2 * style->border);
+
+    /* empty left space activator */
+    empty.w = edit.x - (label.x + label.w);
+    empty.x = label.x + label.w;
+    empty.y = property.y;
+    empty.h = property.h;
+
+    /* update property */
+    old = (*state == NK_PROPERTY_EDIT);
+    nk_property_behavior(ws, in, property, label, edit, empty, state, variant, inc_per_pixel);
+
+    /* draw property */
+    if (style->draw_begin) style->draw_begin(out, style->userdata);
+    nk_draw_property(out, style, &property, &label, *ws, name, name_len, font);
+    if (style->draw_end) style->draw_end(out, style->userdata);
+
+    /* execute right button  */
+    if (nk_do_button_symbol(ws, out, left, style->sym_left, behavior, &style->dec_button, in, font)) {
+        switch (variant->kind) {
+        default: break;
+        case NK_PROPERTY_INT:
+            variant->value.i = NK_CLAMP(variant->min_value.i, variant->value.i - variant->step.i, variant->max_value.i); break;
+        case NK_PROPERTY_FLOAT:
+            variant->value.f = NK_CLAMP(variant->min_value.f, variant->value.f - variant->step.f, variant->max_value.f); break;
+        case NK_PROPERTY_DOUBLE:
+            variant->value.d = NK_CLAMP(variant->min_value.d, variant->value.d - variant->step.d, variant->max_value.d); break;
+        }
+    }
+    /* execute left button  */
+    if (nk_do_button_symbol(ws, out, right, style->sym_right, behavior, &style->inc_button, in, font)) {
+        switch (variant->kind) {
+        default: break;
+        case NK_PROPERTY_INT:
+            variant->value.i = NK_CLAMP(variant->min_value.i, variant->value.i + variant->step.i, variant->max_value.i); break;
+        case NK_PROPERTY_FLOAT:
+            variant->value.f = NK_CLAMP(variant->min_value.f, variant->value.f + variant->step.f, variant->max_value.f); break;
+        case NK_PROPERTY_DOUBLE:
+            variant->value.d = NK_CLAMP(variant->min_value.d, variant->value.d + variant->step.d, variant->max_value.d); break;
+        }
+    }
+    if (old != NK_PROPERTY_EDIT && (*state == NK_PROPERTY_EDIT)) {
+        /* property has been activated so setup buffer */
+        NK_MEMCPY(buffer, dst, (nk_size)*length);
+        *cursor = nk_utf_len(buffer, *length);
+        *len = *length;
+        length = len;
+        dst = buffer;
+        active = 0;
+    } else active = (*state == NK_PROPERTY_EDIT);
+
+    /* execute and run text edit field */
+    nk_textedit_clear_state(text_edit, NK_TEXT_EDIT_SINGLE_LINE, filters[filter]);
+    text_edit->active = (unsigned char)active;
+    text_edit->string.len = *length;
+    text_edit->cursor = NK_CLAMP(0, *cursor, *length);
+    text_edit->select_start = NK_CLAMP(0,*select_begin, *length);
+    text_edit->select_end = NK_CLAMP(0,*select_end, *length);
+    text_edit->string.buffer.allocated = (nk_size)*length;
+    text_edit->string.buffer.memory.size = NK_MAX_NUMBER_BUFFER;
+    text_edit->string.buffer.memory.ptr = dst;
+    text_edit->string.buffer.size = NK_MAX_NUMBER_BUFFER;
+    text_edit->mode = NK_TEXT_EDIT_MODE_INSERT;
+    nk_do_edit(ws, out, edit, NK_EDIT_FIELD|NK_EDIT_AUTO_SELECT,
+        filters[filter], text_edit, &style->edit, (*state == NK_PROPERTY_EDIT) ? in: 0, font);
+
+    *length = text_edit->string.len;
+    *cursor = text_edit->cursor;
+    *select_begin = text_edit->select_start;
+    *select_end = text_edit->select_end;
+    if (text_edit->active && nk_input_is_key_pressed(in, NK_KEY_ENTER))
+        text_edit->active = nk_false;
+
+    if (active && !text_edit->active) {
+        /* property is now not active so convert edit text to value*/
+        *state = NK_PROPERTY_DEFAULT;
+        buffer[*len] = '\0';
+        switch (variant->kind) {
+        default: break;
+        case NK_PROPERTY_INT:
+            variant->value.i = nk_strtoi(buffer, 0);
+            variant->value.i = NK_CLAMP(variant->min_value.i, variant->value.i, variant->max_value.i);
+            break;
+        case NK_PROPERTY_FLOAT:
+            nk_string_float_limit(buffer, NK_MAX_FLOAT_PRECISION);
+            variant->value.f = nk_strtof(buffer, 0);
+            variant->value.f = NK_CLAMP(variant->min_value.f, variant->value.f, variant->max_value.f);
+            break;
+        case NK_PROPERTY_DOUBLE:
+            nk_string_float_limit(buffer, NK_MAX_FLOAT_PRECISION);
+            variant->value.d = nk_strtod(buffer, 0);
+            variant->value.d = NK_CLAMP(variant->min_value.d, variant->value.d, variant->max_value.d);
+            break;
+        }
+    }
+}
+NK_LIB struct nk_property_variant
+nk_property_variant_int(int value, int min_value, int max_value, int step)
+{
+    struct nk_property_variant result;
+    result.kind = NK_PROPERTY_INT;
+    result.value.i = value;
+    result.min_value.i = min_value;
+    result.max_value.i = max_value;
+    result.step.i = step;
+    return result;
+}
+NK_LIB struct nk_property_variant
+nk_property_variant_float(float value, float min_value, float max_value, float step)
+{
+    struct nk_property_variant result;
+    result.kind = NK_PROPERTY_FLOAT;
+    result.value.f = value;
+    result.min_value.f = min_value;
+    result.max_value.f = max_value;
+    result.step.f = step;
+    return result;
+}
+NK_LIB struct nk_property_variant
+nk_property_variant_double(double value, double min_value, double max_value,
+    double step)
+{
+    struct nk_property_variant result;
+    result.kind = NK_PROPERTY_DOUBLE;
+    result.value.d = value;
+    result.min_value.d = min_value;
+    result.max_value.d = max_value;
+    result.step.d = step;
+    return result;
+}
+NK_LIB void
+nk_property(struct nk_context *ctx, const char *name, struct nk_property_variant *variant,
+    float inc_per_pixel, const enum nk_property_filter filter)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    struct nk_input *in;
+    const struct nk_style *style;
+
+    struct nk_rect bounds;
+    enum nk_widget_layout_states s;
+
+    int *state = 0;
+    nk_hash hash = 0;
+    char *buffer = 0;
+    int *len = 0;
+    int *cursor = 0;
+    int *select_begin = 0;
+    int *select_end = 0;
+    int old_state;
+
+    char dummy_buffer[NK_MAX_NUMBER_BUFFER];
+    int dummy_state = NK_PROPERTY_DEFAULT;
+    int dummy_length = 0;
+    int dummy_cursor = 0;
+    int dummy_select_begin = 0;
+    int dummy_select_end = 0;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return;
+
+    win = ctx->current;
+    layout = win->layout;
+    style = &ctx->style;
+    s = nk_widget(&bounds, ctx);
+    if (!s) return;
+
+    /* calculate hash from name */
+    if (name[0] == '#') {
+        hash = nk_murmur_hash(name, (int)nk_strlen(name), win->property.seq++);
+        name++; /* special number hash */
+    } else hash = nk_murmur_hash(name, (int)nk_strlen(name), 42);
+
+    /* check if property is currently hot item */
+    if (win->property.active && hash == win->property.name) {
+        buffer = win->property.buffer;
+        len = &win->property.length;
+        cursor = &win->property.cursor;
+        state = &win->property.state;
+        select_begin = &win->property.select_start;
+        select_end = &win->property.select_end;
+    } else {
+        buffer = dummy_buffer;
+        len = &dummy_length;
+        cursor = &dummy_cursor;
+        state = &dummy_state;
+        select_begin =  &dummy_select_begin;
+        select_end = &dummy_select_end;
+    }
+
+    /* execute property widget */
+    old_state = *state;
+    ctx->text_edit.clip = ctx->clip;
+    in = ((s == NK_WIDGET_ROM && !win->property.active) ||
+        layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    nk_do_property(&ctx->last_widget_state, &win->buffer, bounds, name,
+        variant, inc_per_pixel, buffer, len, state, cursor, select_begin,
+        select_end, &style->property, filter, in, style->font, &ctx->text_edit,
+        ctx->button_behavior);
+
+    if (in && *state != NK_PROPERTY_DEFAULT && !win->property.active) {
+        /* current property is now hot */
+        win->property.active = 1;
+        NK_MEMCPY(win->property.buffer, buffer, (nk_size)*len);
+        win->property.length = *len;
+        win->property.cursor = *cursor;
+        win->property.state = *state;
+        win->property.name = hash;
+        win->property.select_start = *select_begin;
+        win->property.select_end = *select_end;
+        if (*state == NK_PROPERTY_DRAG) {
+            ctx->input.mouse.grab = nk_true;
+            ctx->input.mouse.grabbed = nk_true;
+        }
+    }
+    /* check if previously active property is now inactive */
+    if (*state == NK_PROPERTY_DEFAULT && old_state != NK_PROPERTY_DEFAULT) {
+        if (old_state == NK_PROPERTY_DRAG) {
+            ctx->input.mouse.grab = nk_false;
+            ctx->input.mouse.grabbed = nk_false;
+            ctx->input.mouse.ungrab = nk_true;
+        }
+        win->property.select_start = 0;
+        win->property.select_end = 0;
+        win->property.active = 0;
+    }
+}
+NK_API void
+nk_property_int(struct nk_context *ctx, const char *name,
+    int min, int *val, int max, int step, float inc_per_pixel)
+{
+    struct nk_property_variant variant;
+    NK_ASSERT(ctx);
+    NK_ASSERT(name);
+    NK_ASSERT(val);
+
+    if (!ctx || !ctx->current || !name || !val) return;
+    variant = nk_property_variant_int(*val, min, max, step);
+    nk_property(ctx, name, &variant, inc_per_pixel, NK_FILTER_INT);
+    *val = variant.value.i;
+}
+NK_API void
+nk_property_float(struct nk_context *ctx, const char *name,
+    float min, float *val, float max, float step, float inc_per_pixel)
+{
+    struct nk_property_variant variant;
+    NK_ASSERT(ctx);
+    NK_ASSERT(name);
+    NK_ASSERT(val);
+
+    if (!ctx || !ctx->current || !name || !val) return;
+    variant = nk_property_variant_float(*val, min, max, step);
+    nk_property(ctx, name, &variant, inc_per_pixel, NK_FILTER_FLOAT);
+    *val = variant.value.f;
+}
+NK_API void
+nk_property_double(struct nk_context *ctx, const char *name,
+    double min, double *val, double max, double step, float inc_per_pixel)
+{
+    struct nk_property_variant variant;
+    NK_ASSERT(ctx);
+    NK_ASSERT(name);
+    NK_ASSERT(val);
+
+    if (!ctx || !ctx->current || !name || !val) return;
+    variant = nk_property_variant_double(*val, min, max, step);
+    nk_property(ctx, name, &variant, inc_per_pixel, NK_FILTER_FLOAT);
+    *val = variant.value.d;
+}
+NK_API int
+nk_propertyi(struct nk_context *ctx, const char *name, int min, int val,
+    int max, int step, float inc_per_pixel)
+{
+    struct nk_property_variant variant;
+    NK_ASSERT(ctx);
+    NK_ASSERT(name);
+
+    if (!ctx || !ctx->current || !name) return val;
+    variant = nk_property_variant_int(val, min, max, step);
+    nk_property(ctx, name, &variant, inc_per_pixel, NK_FILTER_INT);
+    val = variant.value.i;
+    return val;
+}
+NK_API float
+nk_propertyf(struct nk_context *ctx, const char *name, float min,
+    float val, float max, float step, float inc_per_pixel)
+{
+    struct nk_property_variant variant;
+    NK_ASSERT(ctx);
+    NK_ASSERT(name);
+
+    if (!ctx || !ctx->current || !name) return val;
+    variant = nk_property_variant_float(val, min, max, step);
+    nk_property(ctx, name, &variant, inc_per_pixel, NK_FILTER_FLOAT);
+    val = variant.value.f;
+    return val;
+}
+NK_API double
+nk_propertyd(struct nk_context *ctx, const char *name, double min,
+    double val, double max, double step, float inc_per_pixel)
+{
+    struct nk_property_variant variant;
+    NK_ASSERT(ctx);
+    NK_ASSERT(name);
+
+    if (!ctx || !ctx->current || !name) return val;
+    variant = nk_property_variant_double(val, min, max, step);
+    nk_property(ctx, name, &variant, inc_per_pixel, NK_FILTER_FLOAT);
+    val = variant.value.d;
+    return val;
+}
+
+
+
+
+
+/* ==============================================================
+ *
+ *                          CHART
+ *
+ * ===============================================================*/
+NK_API int
+nk_chart_begin_colored(struct nk_context *ctx, enum nk_chart_type type,
+    struct nk_color color, struct nk_color highlight,
+    int count, float min_value, float max_value)
+{
+    struct nk_window *win;
+    struct nk_chart *chart;
+    const struct nk_style *config;
+    const struct nk_style_chart *style;
+
+    const struct nk_style_item *background;
+    struct nk_rect bounds = {0, 0, 0, 0};
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+
+    if (!ctx || !ctx->current || !ctx->current->layout) return 0;
+    if (!nk_widget(&bounds, ctx)) {
+        chart = &ctx->current->layout->chart;
+        nk_zero(chart, sizeof(*chart));
+        return 0;
+    }
+
+    win = ctx->current;
+    config = &ctx->style;
+    chart = &win->layout->chart;
+    style = &config->chart;
+
+    /* setup basic generic chart  */
+    nk_zero(chart, sizeof(*chart));
+    chart->x = bounds.x + style->padding.x;
+    chart->y = bounds.y + style->padding.y;
+    chart->w = bounds.w - 2 * style->padding.x;
+    chart->h = bounds.h - 2 * style->padding.y;
+    chart->w = NK_MAX(chart->w, 2 * style->padding.x);
+    chart->h = NK_MAX(chart->h, 2 * style->padding.y);
+
+    /* add first slot into chart */
+    {struct nk_chart_slot *slot = &chart->slots[chart->slot++];
+    slot->type = type;
+    slot->count = count;
+    slot->color = color;
+    slot->highlight = highlight;
+    slot->min = NK_MIN(min_value, max_value);
+    slot->max = NK_MAX(min_value, max_value);
+    slot->range = slot->max - slot->min;}
+
+    /* draw chart background */
+    background = &style->background;
+    if (background->type == NK_STYLE_ITEM_IMAGE) {
+        nk_draw_image(&win->buffer, bounds, &background->data.image, nk_white);
+    } else {
+        nk_fill_rect(&win->buffer, bounds, style->rounding, style->border_color);
+        nk_fill_rect(&win->buffer, nk_shrink_rect(bounds, style->border),
+            style->rounding, style->background.data.color);
+    }
+    return 1;
+}
+NK_API int
+nk_chart_begin(struct nk_context *ctx, const enum nk_chart_type type,
+    int count, float min_value, float max_value)
+{
+    return nk_chart_begin_colored(ctx, type, ctx->style.chart.color,
+                ctx->style.chart.selected_color, count, min_value, max_value);
+}
+NK_API void
+nk_chart_add_slot_colored(struct nk_context *ctx, const enum nk_chart_type type,
+    struct nk_color color, struct nk_color highlight,
+    int count, float min_value, float max_value)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    NK_ASSERT(ctx->current->layout->chart.slot < NK_CHART_MAX_SLOT);
+    if (!ctx || !ctx->current || !ctx->current->layout) return;
+    if (ctx->current->layout->chart.slot >= NK_CHART_MAX_SLOT) return;
+
+    /* add another slot into the graph */
+    {struct nk_chart *chart = &ctx->current->layout->chart;
+    struct nk_chart_slot *slot = &chart->slots[chart->slot++];
+    slot->type = type;
+    slot->count = count;
+    slot->color = color;
+    slot->highlight = highlight;
+    slot->min = NK_MIN(min_value, max_value);
+    slot->max = NK_MAX(min_value, max_value);
+    slot->range = slot->max - slot->min;}
+}
+NK_API void
+nk_chart_add_slot(struct nk_context *ctx, const enum nk_chart_type type,
+    int count, float min_value, float max_value)
+{
+    nk_chart_add_slot_colored(ctx, type, ctx->style.chart.color,
+        ctx->style.chart.selected_color, count, min_value, max_value);
+}
+NK_INTERN nk_flags
+nk_chart_push_line(struct nk_context *ctx, struct nk_window *win,
+    struct nk_chart *g, float value, int slot)
+{
+    struct nk_panel *layout = win->layout;
+    const struct nk_input *i = &ctx->input;
+    struct nk_command_buffer *out = &win->buffer;
+
+    nk_flags ret = 0;
+    struct nk_vec2 cur;
+    struct nk_rect bounds;
+    struct nk_color color;
+    float step;
+    float range;
+    float ratio;
+
+    NK_ASSERT(slot >= 0 && slot < NK_CHART_MAX_SLOT);
+    step = g->w / (float)g->slots[slot].count;
+    range = g->slots[slot].max - g->slots[slot].min;
+    ratio = (value - g->slots[slot].min) / range;
+
+    if (g->slots[slot].index == 0) {
+        /* first data point does not have a connection */
+        g->slots[slot].last.x = g->x;
+        g->slots[slot].last.y = (g->y + g->h) - ratio * (float)g->h;
+
+        bounds.x = g->slots[slot].last.x - 2;
+        bounds.y = g->slots[slot].last.y - 2;
+        bounds.w = bounds.h = 4;
+
+        color = g->slots[slot].color;
+        if (!(layout->flags & NK_WINDOW_ROM) &&
+            NK_INBOX(i->mouse.pos.x,i->mouse.pos.y, g->slots[slot].last.x-3, g->slots[slot].last.y-3, 6, 6)){
+            ret = nk_input_is_mouse_hovering_rect(i, bounds) ? NK_CHART_HOVERING : 0;
+            ret |= (i->mouse.buttons[NK_BUTTON_LEFT].down &&
+                i->mouse.buttons[NK_BUTTON_LEFT].clicked) ? NK_CHART_CLICKED: 0;
+            color = g->slots[slot].highlight;
+        }
+        nk_fill_rect(out, bounds, 0, color);
+        g->slots[slot].index += 1;
+        return ret;
+    }
+
+    /* draw a line between the last data point and the new one */
+    color = g->slots[slot].color;
+    cur.x = g->x + (float)(step * (float)g->slots[slot].index);
+    cur.y = (g->y + g->h) - (ratio * (float)g->h);
+    nk_stroke_line(out, g->slots[slot].last.x, g->slots[slot].last.y, cur.x, cur.y, 1.0f, color);
+
+    bounds.x = cur.x - 3;
+    bounds.y = cur.y - 3;
+    bounds.w = bounds.h = 6;
+
+    /* user selection of current data point */
+    if (!(layout->flags & NK_WINDOW_ROM)) {
+        if (nk_input_is_mouse_hovering_rect(i, bounds)) {
+            ret = NK_CHART_HOVERING;
+            ret |= (!i->mouse.buttons[NK_BUTTON_LEFT].down &&
+                i->mouse.buttons[NK_BUTTON_LEFT].clicked) ? NK_CHART_CLICKED: 0;
+            color = g->slots[slot].highlight;
+        }
+    }
+    nk_fill_rect(out, nk_rect(cur.x - 2, cur.y - 2, 4, 4), 0, color);
+
+    /* save current data point position */
+    g->slots[slot].last.x = cur.x;
+    g->slots[slot].last.y = cur.y;
+    g->slots[slot].index  += 1;
+    return ret;
+}
+NK_INTERN nk_flags
+nk_chart_push_column(const struct nk_context *ctx, struct nk_window *win,
+    struct nk_chart *chart, float value, int slot)
+{
+    struct nk_command_buffer *out = &win->buffer;
+    const struct nk_input *in = &ctx->input;
+    struct nk_panel *layout = win->layout;
+
+    float ratio;
+    nk_flags ret = 0;
+    struct nk_color color;
+    struct nk_rect item = {0,0,0,0};
+
+    NK_ASSERT(slot >= 0 && slot < NK_CHART_MAX_SLOT);
+    if (chart->slots[slot].index  >= chart->slots[slot].count)
+        return nk_false;
+    if (chart->slots[slot].count) {
+        float padding = (float)(chart->slots[slot].count-1);
+        item.w = (chart->w - padding) / (float)(chart->slots[slot].count);
+    }
+
+    /* calculate bounds of current bar chart entry */
+    color = chart->slots[slot].color;;
+    item.h = chart->h * NK_ABS((value/chart->slots[slot].range));
+    if (value >= 0) {
+        ratio = (value + NK_ABS(chart->slots[slot].min)) / NK_ABS(chart->slots[slot].range);
+        item.y = (chart->y + chart->h) - chart->h * ratio;
+    } else {
+        ratio = (value - chart->slots[slot].max) / chart->slots[slot].range;
+        item.y = chart->y + (chart->h * NK_ABS(ratio)) - item.h;
+    }
+    item.x = chart->x + ((float)chart->slots[slot].index * item.w);
+    item.x = item.x + ((float)chart->slots[slot].index);
+
+    /* user chart bar selection */
+    if (!(layout->flags & NK_WINDOW_ROM) &&
+        NK_INBOX(in->mouse.pos.x,in->mouse.pos.y,item.x,item.y,item.w,item.h)) {
+        ret = NK_CHART_HOVERING;
+        ret |= (!in->mouse.buttons[NK_BUTTON_LEFT].down &&
+                in->mouse.buttons[NK_BUTTON_LEFT].clicked) ? NK_CHART_CLICKED: 0;
+        color = chart->slots[slot].highlight;
+    }
+    nk_fill_rect(out, item, 0, color);
+    chart->slots[slot].index += 1;
+    return ret;
+}
+NK_API nk_flags
+nk_chart_push_slot(struct nk_context *ctx, float value, int slot)
+{
+    nk_flags flags;
+    struct nk_window *win;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(slot >= 0 && slot < NK_CHART_MAX_SLOT);
+    NK_ASSERT(slot < ctx->current->layout->chart.slot);
+    if (!ctx || !ctx->current || slot >= NK_CHART_MAX_SLOT) return nk_false;
+    if (slot >= ctx->current->layout->chart.slot) return nk_false;
+
+    win = ctx->current;
+    if (win->layout->chart.slot < slot) return nk_false;
+    switch (win->layout->chart.slots[slot].type) {
+    case NK_CHART_LINES:
+        flags = nk_chart_push_line(ctx, win, &win->layout->chart, value, slot); break;
+    case NK_CHART_COLUMN:
+        flags = nk_chart_push_column(ctx, win, &win->layout->chart, value, slot); break;
+    default:
+    case NK_CHART_MAX:
+        flags = 0;
+    }
+    return flags;
+}
+NK_API nk_flags
+nk_chart_push(struct nk_context *ctx, float value)
+{
+    return nk_chart_push_slot(ctx, value, 0);
+}
+NK_API void
+nk_chart_end(struct nk_context *ctx)
+{
+    struct nk_window *win;
+    struct nk_chart *chart;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current)
+        return;
+
+    win = ctx->current;
+    chart = &win->layout->chart;
+    NK_MEMSET(chart, 0, sizeof(*chart));
+    return;
+}
+NK_API void
+nk_plot(struct nk_context *ctx, enum nk_chart_type type, const float *values,
+    int count, int offset)
+{
+    int i = 0;
+    float min_value;
+    float max_value;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(values);
+    if (!ctx || !values || !count) return;
+
+    min_value = values[offset];
+    max_value = values[offset];
+    for (i = 0; i < count; ++i) {
+        min_value = NK_MIN(values[i + offset], min_value);
+        max_value = NK_MAX(values[i + offset], max_value);
+    }
+
+    if (nk_chart_begin(ctx, type, count, min_value, max_value)) {
+        for (i = 0; i < count; ++i)
+            nk_chart_push(ctx, values[i + offset]);
+        nk_chart_end(ctx);
+    }
+}
+NK_API void
+nk_plot_function(struct nk_context *ctx, enum nk_chart_type type, void *userdata,
+    float(*value_getter)(void* user, int index), int count, int offset)
+{
+    int i = 0;
+    float min_value;
+    float max_value;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(value_getter);
+    if (!ctx || !value_getter || !count) return;
+
+    max_value = min_value = value_getter(userdata, offset);
+    for (i = 0; i < count; ++i) {
+        float value = value_getter(userdata, i + offset);
+        min_value = NK_MIN(value, min_value);
+        max_value = NK_MAX(value, max_value);
+    }
+
+    if (nk_chart_begin(ctx, type, count, min_value, max_value)) {
+        for (i = 0; i < count; ++i)
+            nk_chart_push(ctx, value_getter(userdata, i + offset));
+        nk_chart_end(ctx);
+    }
+}
+
+
+
+
+
+/* ==============================================================
+ *
+ *                          COLOR PICKER
+ *
+ * ===============================================================*/
+NK_LIB int
+nk_color_picker_behavior(nk_flags *state,
+    const struct nk_rect *bounds, const struct nk_rect *matrix,
+    const struct nk_rect *hue_bar, const struct nk_rect *alpha_bar,
+    struct nk_colorf *color, const struct nk_input *in)
+{
+    float hsva[4];
+    int value_changed = 0;
+    int hsv_changed = 0;
+
+    NK_ASSERT(state);
+    NK_ASSERT(matrix);
+    NK_ASSERT(hue_bar);
+    NK_ASSERT(color);
+
+    /* color matrix */
+    nk_colorf_hsva_fv(hsva, *color);
+    if (nk_button_behavior(state, *matrix, in, NK_BUTTON_REPEATER)) {
+        hsva[1] = NK_SATURATE((in->mouse.pos.x - matrix->x) / (matrix->w-1));
+        hsva[2] = 1.0f - NK_SATURATE((in->mouse.pos.y - matrix->y) / (matrix->h-1));
+        value_changed = hsv_changed = 1;
+    }
+    /* hue bar */
+    if (nk_button_behavior(state, *hue_bar, in, NK_BUTTON_REPEATER)) {
+        hsva[0] = NK_SATURATE((in->mouse.pos.y - hue_bar->y) / (hue_bar->h-1));
+        value_changed = hsv_changed = 1;
+    }
+    /* alpha bar */
+    if (alpha_bar) {
+        if (nk_button_behavior(state, *alpha_bar, in, NK_BUTTON_REPEATER)) {
+            hsva[3] = 1.0f - NK_SATURATE((in->mouse.pos.y - alpha_bar->y) / (alpha_bar->h-1));
+            value_changed = 1;
+        }
+    }
+    nk_widget_state_reset(state);
+    if (hsv_changed) {
+        *color = nk_hsva_colorfv(hsva);
+        *state = NK_WIDGET_STATE_ACTIVE;
+    }
+    if (value_changed) {
+        color->a = hsva[3];
+        *state = NK_WIDGET_STATE_ACTIVE;
+    }
+    /* set color picker widget state */
+    if (nk_input_is_mouse_hovering_rect(in, *bounds))
+        *state = NK_WIDGET_STATE_HOVERED;
+    if (*state & NK_WIDGET_STATE_HOVER && !nk_input_is_mouse_prev_hovering_rect(in, *bounds))
+        *state |= NK_WIDGET_STATE_ENTERED;
+    else if (nk_input_is_mouse_prev_hovering_rect(in, *bounds))
+        *state |= NK_WIDGET_STATE_LEFT;
+    return value_changed;
+}
+NK_LIB void
+nk_draw_color_picker(struct nk_command_buffer *o, const struct nk_rect *matrix,
+    const struct nk_rect *hue_bar, const struct nk_rect *alpha_bar,
+    struct nk_colorf col)
+{
+    NK_STORAGE const struct nk_color black = {0,0,0,255};
+    NK_STORAGE const struct nk_color white = {255, 255, 255, 255};
+    NK_STORAGE const struct nk_color black_trans = {0,0,0,0};
+
+    const float crosshair_size = 7.0f;
+    struct nk_color temp;
+    float hsva[4];
+    float line_y;
+    int i;
+
+    NK_ASSERT(o);
+    NK_ASSERT(matrix);
+    NK_ASSERT(hue_bar);
+
+    /* draw hue bar */
+    nk_colorf_hsva_fv(hsva, col);
+    for (i = 0; i < 6; ++i) {
+        NK_GLOBAL const struct nk_color hue_colors[] = {
+            {255, 0, 0, 255}, {255,255,0,255}, {0,255,0,255}, {0, 255,255,255},
+            {0,0,255,255}, {255, 0, 255, 255}, {255, 0, 0, 255}
+        };
+        nk_fill_rect_multi_color(o,
+            nk_rect(hue_bar->x, hue_bar->y + (float)i * (hue_bar->h/6.0f) + 0.5f,
+                hue_bar->w, (hue_bar->h/6.0f) + 0.5f), hue_colors[i], hue_colors[i],
+                hue_colors[i+1], hue_colors[i+1]);
+    }
+    line_y = (float)(int)(hue_bar->y + hsva[0] * matrix->h + 0.5f);
+    nk_stroke_line(o, hue_bar->x-1, line_y, hue_bar->x + hue_bar->w + 2,
+        line_y, 1, nk_rgb(255,255,255));
+
+    /* draw alpha bar */
+    if (alpha_bar) {
+        float alpha = NK_SATURATE(col.a);
+        line_y = (float)(int)(alpha_bar->y +  (1.0f - alpha) * matrix->h + 0.5f);
+
+        nk_fill_rect_multi_color(o, *alpha_bar, white, white, black, black);
+        nk_stroke_line(o, alpha_bar->x-1, line_y, alpha_bar->x + alpha_bar->w + 2,
+            line_y, 1, nk_rgb(255,255,255));
+    }
+
+    /* draw color matrix */
+    temp = nk_hsv_f(hsva[0], 1.0f, 1.0f);
+    nk_fill_rect_multi_color(o, *matrix, white, temp, temp, white);
+    nk_fill_rect_multi_color(o, *matrix, black_trans, black_trans, black, black);
+
+    /* draw cross-hair */
+    {struct nk_vec2 p; float S = hsva[1]; float V = hsva[2];
+    p.x = (float)(int)(matrix->x + S * matrix->w);
+    p.y = (float)(int)(matrix->y + (1.0f - V) * matrix->h);
+    nk_stroke_line(o, p.x - crosshair_size, p.y, p.x-2, p.y, 1.0f, white);
+    nk_stroke_line(o, p.x + crosshair_size + 1, p.y, p.x+3, p.y, 1.0f, white);
+    nk_stroke_line(o, p.x, p.y + crosshair_size + 1, p.x, p.y+3, 1.0f, white);
+    nk_stroke_line(o, p.x, p.y - crosshair_size, p.x, p.y-2, 1.0f, white);}
+}
+NK_LIB int
+nk_do_color_picker(nk_flags *state,
+    struct nk_command_buffer *out, struct nk_colorf *col,
+    enum nk_color_format fmt, struct nk_rect bounds,
+    struct nk_vec2 padding, const struct nk_input *in,
+    const struct nk_user_font *font)
+{
+    int ret = 0;
+    struct nk_rect matrix;
+    struct nk_rect hue_bar;
+    struct nk_rect alpha_bar;
+    float bar_w;
+
+    NK_ASSERT(out);
+    NK_ASSERT(col);
+    NK_ASSERT(state);
+    NK_ASSERT(font);
+    if (!out || !col || !state || !font)
+        return ret;
+
+    bar_w = font->height;
+    bounds.x += padding.x;
+    bounds.y += padding.x;
+    bounds.w -= 2 * padding.x;
+    bounds.h -= 2 * padding.y;
+
+    matrix.x = bounds.x;
+    matrix.y = bounds.y;
+    matrix.h = bounds.h;
+    matrix.w = bounds.w - (3 * padding.x + 2 * bar_w);
+
+    hue_bar.w = bar_w;
+    hue_bar.y = bounds.y;
+    hue_bar.h = matrix.h;
+    hue_bar.x = matrix.x + matrix.w + padding.x;
+
+    alpha_bar.x = hue_bar.x + hue_bar.w + padding.x;
+    alpha_bar.y = bounds.y;
+    alpha_bar.w = bar_w;
+    alpha_bar.h = matrix.h;
+
+    ret = nk_color_picker_behavior(state, &bounds, &matrix, &hue_bar,
+        (fmt == NK_RGBA) ? &alpha_bar:0, col, in);
+    nk_draw_color_picker(out, &matrix, &hue_bar, (fmt == NK_RGBA) ? &alpha_bar:0, *col);
+    return ret;
+}
+NK_API int
+nk_color_pick(struct nk_context * ctx, struct nk_colorf *color,
+    enum nk_color_format fmt)
+{
+    struct nk_window *win;
+    struct nk_panel *layout;
+    const struct nk_style *config;
+    const struct nk_input *in;
+
+    enum nk_widget_layout_states state;
+    struct nk_rect bounds;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(color);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout || !color)
+        return 0;
+
+    win = ctx->current;
+    config = &ctx->style;
+    layout = win->layout;
+    state = nk_widget(&bounds, ctx);
+    if (!state) return 0;
+    in = (state == NK_WIDGET_ROM || layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
+    return nk_do_color_picker(&ctx->last_widget_state, &win->buffer, color, fmt, bounds,
+                nk_vec2(0,0), in, config->font);
+}
+NK_API struct nk_colorf
+nk_color_picker(struct nk_context *ctx, struct nk_colorf color,
+    enum nk_color_format fmt)
+{
+    nk_color_pick(ctx, &color, fmt);
+    return color;
+}
+
+
+
+
+
+/* ==============================================================
+ *
+ *                          COMBO
+ *
+ * ===============================================================*/
+NK_INTERN int
+nk_combo_begin(struct nk_context *ctx, struct nk_window *win,
+    struct nk_vec2 size, int is_clicked, struct nk_rect header)
+{
+    struct nk_window *popup;
+    int is_open = 0;
+    int is_active = 0;
+    struct nk_rect body;
+    nk_hash hash;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    popup = win->popup.win;
+    body.x = header.x;
+    body.w = size.x;
+    body.y = header.y + header.h-ctx->style.window.combo_border;
+    body.h = size.y;
+
+    hash = win->popup.combo_count++;
+    is_open = (popup) ? nk_true:nk_false;
+    is_active = (popup && (win->popup.name == hash) && win->popup.type == NK_PANEL_COMBO);
+    if ((is_clicked && is_open && !is_active) || (is_open && !is_active) ||
+        (!is_open && !is_active && !is_clicked)) return 0;
+    if (!nk_nonblock_begin(ctx, 0, body,
+        (is_clicked && is_open)?nk_rect(0,0,0,0):header, NK_PANEL_COMBO)) return 0;
+
+    win->popup.type = NK_PANEL_COMBO;
+    win->popup.name = hash;
+    return 1;
+}
+NK_API int
+nk_combo_begin_text(struct nk_context *ctx, const char *selected, int len,
+    struct nk_vec2 size)
+{
+    const struct nk_input *in;
+    struct nk_window *win;
+    struct nk_style *style;
+
+    enum nk_widget_layout_states s;
+    int is_clicked = nk_false;
+    struct nk_rect header;
+    const struct nk_style_item *background;
+    struct nk_text text;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(selected);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout || !selected)
+        return 0;
+
+    win = ctx->current;
+    style = &ctx->style;
+    s = nk_widget(&header, ctx);
+    if (s == NK_WIDGET_INVALID)
+        return 0;
+
+    in = (win->layout->flags & NK_WINDOW_ROM || s == NK_WIDGET_ROM)? 0: &ctx->input;
+    if (nk_button_behavior(&ctx->last_widget_state, header, in, NK_BUTTON_DEFAULT))
+        is_clicked = nk_true;
+
+    /* draw combo box header background and border */
+    if (ctx->last_widget_state & NK_WIDGET_STATE_ACTIVED) {
+        background = &style->combo.active;
+        text.text = style->combo.label_active;
+    } else if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER) {
+        background = &style->combo.hover;
+        text.text = style->combo.label_hover;
+    } else {
+        background = &style->combo.normal;
+        text.text = style->combo.label_normal;
+    }
+    if (background->type == NK_STYLE_ITEM_IMAGE) {
+        text.background = nk_rgba(0,0,0,0);
+        nk_draw_image(&win->buffer, header, &background->data.image, nk_white);
+    } else {
+        text.background = background->data.color;
+        nk_fill_rect(&win->buffer, header, style->combo.rounding, background->data.color);
+        nk_stroke_rect(&win->buffer, header, style->combo.rounding, style->combo.border, style->combo.border_color);
+    }
+    {
+        /* print currently selected text item */
+        struct nk_rect label;
+        struct nk_rect button;
+        struct nk_rect content;
+
+        enum nk_symbol_type sym;
+        if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER)
+            sym = style->combo.sym_hover;
+        else if (is_clicked)
+            sym = style->combo.sym_active;
+        else sym = style->combo.sym_normal;
+
+        /* calculate button */
+        button.w = header.h - 2 * style->combo.button_padding.y;
+        button.x = (header.x + header.w - header.h) - style->combo.button_padding.x;
+        button.y = header.y + style->combo.button_padding.y;
+        button.h = button.w;
+
+        content.x = button.x + style->combo.button.padding.x;
+        content.y = button.y + style->combo.button.padding.y;
+        content.w = button.w - 2 * style->combo.button.padding.x;
+        content.h = button.h - 2 * style->combo.button.padding.y;
+
+        /* draw selected label */
+        text.padding = nk_vec2(0,0);
+        label.x = header.x + style->combo.content_padding.x;
+        label.y = header.y + style->combo.content_padding.y;
+        label.w = button.x - (style->combo.content_padding.x + style->combo.spacing.x) - label.x;;
+        label.h = header.h - 2 * style->combo.content_padding.y;
+        nk_widget_text(&win->buffer, label, selected, len, &text,
+            NK_TEXT_LEFT, ctx->style.font);
+
+        /* draw open/close button */
+        nk_draw_button_symbol(&win->buffer, &button, &content, ctx->last_widget_state,
+            &ctx->style.combo.button, sym, style->font);
+    }
+    return nk_combo_begin(ctx, win, size, is_clicked, header);
+}
+NK_API int
+nk_combo_begin_label(struct nk_context *ctx, const char *selected, struct nk_vec2 size)
+{
+    return nk_combo_begin_text(ctx, selected, nk_strlen(selected), size);
+}
+NK_API int
+nk_combo_begin_color(struct nk_context *ctx, struct nk_color color, struct nk_vec2 size)
+{
+    struct nk_window *win;
+    struct nk_style *style;
+    const struct nk_input *in;
+
+    struct nk_rect header;
+    int is_clicked = nk_false;
+    enum nk_widget_layout_states s;
+    const struct nk_style_item *background;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    style = &ctx->style;
+    s = nk_widget(&header, ctx);
+    if (s == NK_WIDGET_INVALID)
+        return 0;
+
+    in = (win->layout->flags & NK_WINDOW_ROM || s == NK_WIDGET_ROM)? 0: &ctx->input;
+    if (nk_button_behavior(&ctx->last_widget_state, header, in, NK_BUTTON_DEFAULT))
+        is_clicked = nk_true;
+
+    /* draw combo box header background and border */
+    if (ctx->last_widget_state & NK_WIDGET_STATE_ACTIVED)
+        background = &style->combo.active;
+    else if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER)
+        background = &style->combo.hover;
+    else background = &style->combo.normal;
+
+    if (background->type == NK_STYLE_ITEM_IMAGE) {
+        nk_draw_image(&win->buffer, header, &background->data.image,nk_white);
+    } else {
+        nk_fill_rect(&win->buffer, header, style->combo.rounding, background->data.color);
+        nk_stroke_rect(&win->buffer, header, style->combo.rounding, style->combo.border, style->combo.border_color);
+    }
+    {
+        struct nk_rect content;
+        struct nk_rect button;
+        struct nk_rect bounds;
+
+        enum nk_symbol_type sym;
+        if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER)
+            sym = style->combo.sym_hover;
+        else if (is_clicked)
+            sym = style->combo.sym_active;
+        else sym = style->combo.sym_normal;
+
+        /* calculate button */
+        button.w = header.h - 2 * style->combo.button_padding.y;
+        button.x = (header.x + header.w - header.h) - style->combo.button_padding.x;
+        button.y = header.y + style->combo.button_padding.y;
+        button.h = button.w;
+
+        content.x = button.x + style->combo.button.padding.x;
+        content.y = button.y + style->combo.button.padding.y;
+        content.w = button.w - 2 * style->combo.button.padding.x;
+        content.h = button.h - 2 * style->combo.button.padding.y;
+
+        /* draw color */
+        bounds.h = header.h - 4 * style->combo.content_padding.y;
+        bounds.y = header.y + 2 * style->combo.content_padding.y;
+        bounds.x = header.x + 2 * style->combo.content_padding.x;
+        bounds.w = (button.x - (style->combo.content_padding.x + style->combo.spacing.x)) - bounds.x;
+        nk_fill_rect(&win->buffer, bounds, 0, color);
+
+        /* draw open/close button */
+        nk_draw_button_symbol(&win->buffer, &button, &content, ctx->last_widget_state,
+            &ctx->style.combo.button, sym, style->font);
+    }
+    return nk_combo_begin(ctx, win, size, is_clicked, header);
+}
+NK_API int
+nk_combo_begin_symbol(struct nk_context *ctx, enum nk_symbol_type symbol, struct nk_vec2 size)
+{
+    struct nk_window *win;
+    struct nk_style *style;
+    const struct nk_input *in;
+
+    struct nk_rect header;
+    int is_clicked = nk_false;
+    enum nk_widget_layout_states s;
+    const struct nk_style_item *background;
+    struct nk_color sym_background;
+    struct nk_color symbol_color;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    style = &ctx->style;
+    s = nk_widget(&header, ctx);
+    if (s == NK_WIDGET_INVALID)
+        return 0;
+
+    in = (win->layout->flags & NK_WINDOW_ROM || s == NK_WIDGET_ROM)? 0: &ctx->input;
+    if (nk_button_behavior(&ctx->last_widget_state, header, in, NK_BUTTON_DEFAULT))
+        is_clicked = nk_true;
+
+    /* draw combo box header background and border */
+    if (ctx->last_widget_state & NK_WIDGET_STATE_ACTIVED) {
+        background = &style->combo.active;
+        symbol_color = style->combo.symbol_active;
+    } else if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER) {
+        background = &style->combo.hover;
+        symbol_color = style->combo.symbol_hover;
+    } else {
+        background = &style->combo.normal;
+        symbol_color = style->combo.symbol_hover;
+    }
+
+    if (background->type == NK_STYLE_ITEM_IMAGE) {
+        sym_background = nk_rgba(0,0,0,0);
+        nk_draw_image(&win->buffer, header, &background->data.image, nk_white);
+    } else {
+        sym_background = background->data.color;
+        nk_fill_rect(&win->buffer, header, style->combo.rounding, background->data.color);
+        nk_stroke_rect(&win->buffer, header, style->combo.rounding, style->combo.border, style->combo.border_color);
+    }
+    {
+        struct nk_rect bounds = {0,0,0,0};
+        struct nk_rect content;
+        struct nk_rect button;
+
+        enum nk_symbol_type sym;
+        if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER)
+            sym = style->combo.sym_hover;
+        else if (is_clicked)
+            sym = style->combo.sym_active;
+        else sym = style->combo.sym_normal;
+
+        /* calculate button */
+        button.w = header.h - 2 * style->combo.button_padding.y;
+        button.x = (header.x + header.w - header.h) - style->combo.button_padding.y;
+        button.y = header.y + style->combo.button_padding.y;
+        button.h = button.w;
+
+        content.x = button.x + style->combo.button.padding.x;
+        content.y = button.y + style->combo.button.padding.y;
+        content.w = button.w - 2 * style->combo.button.padding.x;
+        content.h = button.h - 2 * style->combo.button.padding.y;
+
+        /* draw symbol */
+        bounds.h = header.h - 2 * style->combo.content_padding.y;
+        bounds.y = header.y + style->combo.content_padding.y;
+        bounds.x = header.x + style->combo.content_padding.x;
+        bounds.w = (button.x - style->combo.content_padding.y) - bounds.x;
+        nk_draw_symbol(&win->buffer, symbol, bounds, sym_background, symbol_color,
+            1.0f, style->font);
+
+        /* draw open/close button */
+        nk_draw_button_symbol(&win->buffer, &bounds, &content, ctx->last_widget_state,
+            &ctx->style.combo.button, sym, style->font);
+    }
+    return nk_combo_begin(ctx, win, size, is_clicked, header);
+}
+NK_API int
+nk_combo_begin_symbol_text(struct nk_context *ctx, const char *selected, int len,
+    enum nk_symbol_type symbol, struct nk_vec2 size)
+{
+    struct nk_window *win;
+    struct nk_style *style;
+    struct nk_input *in;
+
+    struct nk_rect header;
+    int is_clicked = nk_false;
+    enum nk_widget_layout_states s;
+    const struct nk_style_item *background;
+    struct nk_color symbol_color;
+    struct nk_text text;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    style = &ctx->style;
+    s = nk_widget(&header, ctx);
+    if (!s) return 0;
+
+    in = (win->layout->flags & NK_WINDOW_ROM || s == NK_WIDGET_ROM)? 0: &ctx->input;
+    if (nk_button_behavior(&ctx->last_widget_state, header, in, NK_BUTTON_DEFAULT))
+        is_clicked = nk_true;
+
+    /* draw combo box header background and border */
+    if (ctx->last_widget_state & NK_WIDGET_STATE_ACTIVED) {
+        background = &style->combo.active;
+        symbol_color = style->combo.symbol_active;
+        text.text = style->combo.label_active;
+    } else if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER) {
+        background = &style->combo.hover;
+        symbol_color = style->combo.symbol_hover;
+        text.text = style->combo.label_hover;
+    } else {
+        background = &style->combo.normal;
+        symbol_color = style->combo.symbol_normal;
+        text.text = style->combo.label_normal;
+    }
+    if (background->type == NK_STYLE_ITEM_IMAGE) {
+        text.background = nk_rgba(0,0,0,0);
+        nk_draw_image(&win->buffer, header, &background->data.image, nk_white);
+    } else {
+        text.background = background->data.color;
+        nk_fill_rect(&win->buffer, header, style->combo.rounding, background->data.color);
+        nk_stroke_rect(&win->buffer, header, style->combo.rounding, style->combo.border, style->combo.border_color);
+    }
+    {
+        struct nk_rect content;
+        struct nk_rect button;
+        struct nk_rect label;
+        struct nk_rect image;
+
+        enum nk_symbol_type sym;
+        if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER)
+            sym = style->combo.sym_hover;
+        else if (is_clicked)
+            sym = style->combo.sym_active;
+        else sym = style->combo.sym_normal;
+
+        /* calculate button */
+        button.w = header.h - 2 * style->combo.button_padding.y;
+        button.x = (header.x + header.w - header.h) - style->combo.button_padding.x;
+        button.y = header.y + style->combo.button_padding.y;
+        button.h = button.w;
+
+        content.x = button.x + style->combo.button.padding.x;
+        content.y = button.y + style->combo.button.padding.y;
+        content.w = button.w - 2 * style->combo.button.padding.x;
+        content.h = button.h - 2 * style->combo.button.padding.y;
+        nk_draw_button_symbol(&win->buffer, &button, &content, ctx->last_widget_state,
+            &ctx->style.combo.button, sym, style->font);
+
+        /* draw symbol */
+        image.x = header.x + style->combo.content_padding.x;
+        image.y = header.y + style->combo.content_padding.y;
+        image.h = header.h - 2 * style->combo.content_padding.y;
+        image.w = image.h;
+        nk_draw_symbol(&win->buffer, symbol, image, text.background, symbol_color,
+            1.0f, style->font);
+
+        /* draw label */
+        text.padding = nk_vec2(0,0);
+        label.x = image.x + image.w + style->combo.spacing.x + style->combo.content_padding.x;
+        label.y = header.y + style->combo.content_padding.y;
+        label.w = (button.x - style->combo.content_padding.x) - label.x;
+        label.h = header.h - 2 * style->combo.content_padding.y;
+        nk_widget_text(&win->buffer, label, selected, len, &text, NK_TEXT_LEFT, style->font);
+    }
+    return nk_combo_begin(ctx, win, size, is_clicked, header);
+}
+NK_API int
+nk_combo_begin_image(struct nk_context *ctx, struct nk_image img, struct nk_vec2 size)
+{
+    struct nk_window *win;
+    struct nk_style *style;
+    const struct nk_input *in;
+
+    struct nk_rect header;
+    int is_clicked = nk_false;
+    enum nk_widget_layout_states s;
+    const struct nk_style_item *background;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    style = &ctx->style;
+    s = nk_widget(&header, ctx);
+    if (s == NK_WIDGET_INVALID)
+        return 0;
+
+    in = (win->layout->flags & NK_WINDOW_ROM || s == NK_WIDGET_ROM)? 0: &ctx->input;
+    if (nk_button_behavior(&ctx->last_widget_state, header, in, NK_BUTTON_DEFAULT))
+        is_clicked = nk_true;
+
+    /* draw combo box header background and border */
+    if (ctx->last_widget_state & NK_WIDGET_STATE_ACTIVED)
+        background = &style->combo.active;
+    else if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER)
+        background = &style->combo.hover;
+    else background = &style->combo.normal;
+
+    if (background->type == NK_STYLE_ITEM_IMAGE) {
+        nk_draw_image(&win->buffer, header, &background->data.image, nk_white);
+    } else {
+        nk_fill_rect(&win->buffer, header, style->combo.rounding, background->data.color);
+        nk_stroke_rect(&win->buffer, header, style->combo.rounding, style->combo.border, style->combo.border_color);
+    }
+    {
+        struct nk_rect bounds = {0,0,0,0};
+        struct nk_rect content;
+        struct nk_rect button;
+
+        enum nk_symbol_type sym;
+        if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER)
+            sym = style->combo.sym_hover;
+        else if (is_clicked)
+            sym = style->combo.sym_active;
+        else sym = style->combo.sym_normal;
+
+        /* calculate button */
+        button.w = header.h - 2 * style->combo.button_padding.y;
+        button.x = (header.x + header.w - header.h) - style->combo.button_padding.y;
+        button.y = header.y + style->combo.button_padding.y;
+        button.h = button.w;
+
+        content.x = button.x + style->combo.button.padding.x;
+        content.y = button.y + style->combo.button.padding.y;
+        content.w = button.w - 2 * style->combo.button.padding.x;
+        content.h = button.h - 2 * style->combo.button.padding.y;
+
+        /* draw image */
+        bounds.h = header.h - 2 * style->combo.content_padding.y;
+        bounds.y = header.y + style->combo.content_padding.y;
+        bounds.x = header.x + style->combo.content_padding.x;
+        bounds.w = (button.x - style->combo.content_padding.y) - bounds.x;
+        nk_draw_image(&win->buffer, bounds, &img, nk_white);
+
+        /* draw open/close button */
+        nk_draw_button_symbol(&win->buffer, &bounds, &content, ctx->last_widget_state,
+            &ctx->style.combo.button, sym, style->font);
+    }
+    return nk_combo_begin(ctx, win, size, is_clicked, header);
+}
+NK_API int
+nk_combo_begin_image_text(struct nk_context *ctx, const char *selected, int len,
+    struct nk_image img, struct nk_vec2 size)
+{
+    struct nk_window *win;
+    struct nk_style *style;
+    struct nk_input *in;
+
+    struct nk_rect header;
+    int is_clicked = nk_false;
+    enum nk_widget_layout_states s;
+    const struct nk_style_item *background;
+    struct nk_text text;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    win = ctx->current;
+    style = &ctx->style;
+    s = nk_widget(&header, ctx);
+    if (!s) return 0;
+
+    in = (win->layout->flags & NK_WINDOW_ROM || s == NK_WIDGET_ROM)? 0: &ctx->input;
+    if (nk_button_behavior(&ctx->last_widget_state, header, in, NK_BUTTON_DEFAULT))
+        is_clicked = nk_true;
+
+    /* draw combo box header background and border */
+    if (ctx->last_widget_state & NK_WIDGET_STATE_ACTIVED) {
+        background = &style->combo.active;
+        text.text = style->combo.label_active;
+    } else if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER) {
+        background = &style->combo.hover;
+        text.text = style->combo.label_hover;
+    } else {
+        background = &style->combo.normal;
+        text.text = style->combo.label_normal;
+    }
+    if (background->type == NK_STYLE_ITEM_IMAGE) {
+        text.background = nk_rgba(0,0,0,0);
+        nk_draw_image(&win->buffer, header, &background->data.image, nk_white);
+    } else {
+        text.background = background->data.color;
+        nk_fill_rect(&win->buffer, header, style->combo.rounding, background->data.color);
+        nk_stroke_rect(&win->buffer, header, style->combo.rounding, style->combo.border, style->combo.border_color);
+    }
+    {
+        struct nk_rect content;
+        struct nk_rect button;
+        struct nk_rect label;
+        struct nk_rect image;
+
+        enum nk_symbol_type sym;
+        if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER)
+            sym = style->combo.sym_hover;
+        else if (is_clicked)
+            sym = style->combo.sym_active;
+        else sym = style->combo.sym_normal;
+
+        /* calculate button */
+        button.w = header.h - 2 * style->combo.button_padding.y;
+        button.x = (header.x + header.w - header.h) - style->combo.button_padding.x;
+        button.y = header.y + style->combo.button_padding.y;
+        button.h = button.w;
+
+        content.x = button.x + style->combo.button.padding.x;
+        content.y = button.y + style->combo.button.padding.y;
+        content.w = button.w - 2 * style->combo.button.padding.x;
+        content.h = button.h - 2 * style->combo.button.padding.y;
+        nk_draw_button_symbol(&win->buffer, &button, &content, ctx->last_widget_state,
+            &ctx->style.combo.button, sym, style->font);
+
+        /* draw image */
+        image.x = header.x + style->combo.content_padding.x;
+        image.y = header.y + style->combo.content_padding.y;
+        image.h = header.h - 2 * style->combo.content_padding.y;
+        image.w = image.h;
+        nk_draw_image(&win->buffer, image, &img, nk_white);
+
+        /* draw label */
+        text.padding = nk_vec2(0,0);
+        label.x = image.x + image.w + style->combo.spacing.x + style->combo.content_padding.x;
+        label.y = header.y + style->combo.content_padding.y;
+        label.w = (button.x - style->combo.content_padding.x) - label.x;
+        label.h = header.h - 2 * style->combo.content_padding.y;
+        nk_widget_text(&win->buffer, label, selected, len, &text, NK_TEXT_LEFT, style->font);
+    }
+    return nk_combo_begin(ctx, win, size, is_clicked, header);
+}
+NK_API int
+nk_combo_begin_symbol_label(struct nk_context *ctx,
+    const char *selected, enum nk_symbol_type type, struct nk_vec2 size)
+{
+    return nk_combo_begin_symbol_text(ctx, selected, nk_strlen(selected), type, size);
+}
+NK_API int
+nk_combo_begin_image_label(struct nk_context *ctx,
+    const char *selected, struct nk_image img, struct nk_vec2 size)
+{
+    return nk_combo_begin_image_text(ctx, selected, nk_strlen(selected), img, size);
+}
+NK_API int
+nk_combo_item_text(struct nk_context *ctx, const char *text, int len,nk_flags align)
+{
+    return nk_contextual_item_text(ctx, text, len, align);
+}
+NK_API int
+nk_combo_item_label(struct nk_context *ctx, const char *label, nk_flags align)
+{
+    return nk_contextual_item_label(ctx, label, align);
+}
+NK_API int
+nk_combo_item_image_text(struct nk_context *ctx, struct nk_image img, const char *text,
+    int len, nk_flags alignment)
+{
+    return nk_contextual_item_image_text(ctx, img, text, len, alignment);
+}
+NK_API int
+nk_combo_item_image_label(struct nk_context *ctx, struct nk_image img,
+    const char *text, nk_flags alignment)
+{
+    return nk_contextual_item_image_label(ctx, img, text, alignment);
+}
+NK_API int
+nk_combo_item_symbol_text(struct nk_context *ctx, enum nk_symbol_type sym,
+    const char *text, int len, nk_flags alignment)
+{
+    return nk_contextual_item_symbol_text(ctx, sym, text, len, alignment);
+}
+NK_API int
+nk_combo_item_symbol_label(struct nk_context *ctx, enum nk_symbol_type sym,
+    const char *label, nk_flags alignment)
+{
+    return nk_contextual_item_symbol_label(ctx, sym, label, alignment);
+}
+NK_API void nk_combo_end(struct nk_context *ctx)
+{
+    nk_contextual_end(ctx);
+}
+NK_API void nk_combo_close(struct nk_context *ctx)
+{
+    nk_contextual_close(ctx);
+}
+NK_API int
+nk_combo(struct nk_context *ctx, const char **items, int count,
+    int selected, int item_height, struct nk_vec2 size)
+{
+    int i = 0;
+    int max_height;
+    struct nk_vec2 item_spacing;
+    struct nk_vec2 window_padding;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(items);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !items ||!count)
+        return selected;
+
+    item_spacing = ctx->style.window.spacing;
+    window_padding = nk_panel_get_padding(&ctx->style, ctx->current->layout->type);
+    max_height = count * item_height + count * (int)item_spacing.y;
+    max_height += (int)item_spacing.y * 2 + (int)window_padding.y * 2;
+    size.y = NK_MIN(size.y, (float)max_height);
+    if (nk_combo_begin_label(ctx, items[selected], size)) {
+        nk_layout_row_dynamic(ctx, (float)item_height, 1);
+        for (i = 0; i < count; ++i) {
+            if (nk_combo_item_label(ctx, items[i], NK_TEXT_LEFT))
+                selected = i;
+        }
+        nk_combo_end(ctx);
+    }
+    return selected;
+}
+NK_API int
+nk_combo_separator(struct nk_context *ctx, const char *items_separated_by_separator,
+    int separator, int selected, int count, int item_height, struct nk_vec2 size)
+{
+    int i;
+    int max_height;
+    struct nk_vec2 item_spacing;
+    struct nk_vec2 window_padding;
+    const char *current_item;
+    const char *iter;
+    int length = 0;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(items_separated_by_separator);
+    if (!ctx || !items_separated_by_separator)
+        return selected;
+
+    /* calculate popup window */
+    item_spacing = ctx->style.window.spacing;
+    window_padding = nk_panel_get_padding(&ctx->style, ctx->current->layout->type);
+    max_height = count * item_height + count * (int)item_spacing.y;
+    max_height += (int)item_spacing.y * 2 + (int)window_padding.y * 2;
+    size.y = NK_MIN(size.y, (float)max_height);
+
+    /* find selected item */
+    current_item = items_separated_by_separator;
+    for (i = 0; i < count; ++i) {
+        iter = current_item;
+        while (*iter && *iter != separator) iter++;
+        length = (int)(iter - current_item);
+        if (i == selected) break;
+        current_item = iter + 1;
+    }
+
+    if (nk_combo_begin_text(ctx, current_item, length, size)) {
+        current_item = items_separated_by_separator;
+        nk_layout_row_dynamic(ctx, (float)item_height, 1);
+        for (i = 0; i < count; ++i) {
+            iter = current_item;
+            while (*iter && *iter != separator) iter++;
+            length = (int)(iter - current_item);
+            if (nk_combo_item_text(ctx, current_item, length, NK_TEXT_LEFT))
+                selected = i;
+            current_item = current_item + length + 1;
+        }
+        nk_combo_end(ctx);
+    }
+    return selected;
+}
+NK_API int
+nk_combo_string(struct nk_context *ctx, const char *items_separated_by_zeros,
+    int selected, int count, int item_height, struct nk_vec2 size)
+{
+    return nk_combo_separator(ctx, items_separated_by_zeros, '\0', selected, count, item_height, size);
+}
+NK_API int
+nk_combo_callback(struct nk_context *ctx, void(*item_getter)(void*, int, const char**),
+    void *userdata, int selected, int count, int item_height, struct nk_vec2 size)
+{
+    int i;
+    int max_height;
+    struct nk_vec2 item_spacing;
+    struct nk_vec2 window_padding;
+    const char *item;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(item_getter);
+    if (!ctx || !item_getter)
+        return selected;
+
+    /* calculate popup window */
+    item_spacing = ctx->style.window.spacing;
+    window_padding = nk_panel_get_padding(&ctx->style, ctx->current->layout->type);
+    max_height = count * item_height + count * (int)item_spacing.y;
+    max_height += (int)item_spacing.y * 2 + (int)window_padding.y * 2;
+    size.y = NK_MIN(size.y, (float)max_height);
+
+    item_getter(userdata, selected, &item);
+    if (nk_combo_begin_label(ctx, item, size)) {
+        nk_layout_row_dynamic(ctx, (float)item_height, 1);
+        for (i = 0; i < count; ++i) {
+            item_getter(userdata, i, &item);
+            if (nk_combo_item_label(ctx, item, NK_TEXT_LEFT))
+                selected = i;
+        }
+        nk_combo_end(ctx);
+    } return selected;
+}
+NK_API void
+nk_combobox(struct nk_context *ctx, const char **items, int count,
+    int *selected, int item_height, struct nk_vec2 size)
+{
+    *selected = nk_combo(ctx, items, count, *selected, item_height, size);
+}
+NK_API void
+nk_combobox_string(struct nk_context *ctx, const char *items_separated_by_zeros,
+    int *selected, int count, int item_height, struct nk_vec2 size)
+{
+    *selected = nk_combo_string(ctx, items_separated_by_zeros, *selected, count, item_height, size);
+}
+NK_API void
+nk_combobox_separator(struct nk_context *ctx, const char *items_separated_by_separator,
+    int separator,int *selected, int count, int item_height, struct nk_vec2 size)
+{
+    *selected = nk_combo_separator(ctx, items_separated_by_separator, separator,
+                                    *selected, count, item_height, size);
+}
+NK_API void
+nk_combobox_callback(struct nk_context *ctx,
+    void(*item_getter)(void* data, int id, const char **out_text),
+    void *userdata, int *selected, int count, int item_height, struct nk_vec2 size)
+{
+    *selected = nk_combo_callback(ctx, item_getter, userdata,  *selected, count, item_height, size);
+}
+
+
+
+
+
+/* ===============================================================
+ *
+ *                              TOOLTIP
+ *
+ * ===============================================================*/
+NK_API int
+nk_tooltip_begin(struct nk_context *ctx, float width)
+{
+    int x,y,w,h;
+    struct nk_window *win;
+    const struct nk_input *in;
+    struct nk_rect bounds;
+    int ret;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    if (!ctx || !ctx->current || !ctx->current->layout)
+        return 0;
+
+    /* make sure that no nonblocking popup is currently active */
+    win = ctx->current;
+    in = &ctx->input;
+    if (win->popup.win && (win->popup.type & NK_PANEL_SET_NONBLOCK))
+        return 0;
+
+    w = nk_iceilf(width);
+    h = nk_iceilf(nk_null_rect.h);
+    x = nk_ifloorf(in->mouse.pos.x + 1) - (int)win->layout->clip.x;
+    y = nk_ifloorf(in->mouse.pos.y + 1) - (int)win->layout->clip.y;
+
+    bounds.x = (float)x;
+    bounds.y = (float)y;
+    bounds.w = (float)w;
+    bounds.h = (float)h;
+
+    ret = nk_popup_begin(ctx, NK_POPUP_DYNAMIC,
+        "__##Tooltip##__", NK_WINDOW_NO_SCROLLBAR|NK_WINDOW_BORDER, bounds);
+    if (ret) win->layout->flags &= ~(nk_flags)NK_WINDOW_ROM;
+    win->popup.type = NK_PANEL_TOOLTIP;
+    ctx->current->layout->type = NK_PANEL_TOOLTIP;
+    return ret;
+}
+
+NK_API void
+nk_tooltip_end(struct nk_context *ctx)
+{
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    if (!ctx || !ctx->current) return;
+    ctx->current->seq--;
+    nk_popup_close(ctx);
+    nk_popup_end(ctx);
+}
+NK_API void
+nk_tooltip(struct nk_context *ctx, const char *text)
+{
+    const struct nk_style *style;
+    struct nk_vec2 padding;
+
+    int text_len;
+    float text_width;
+    float text_height;
+
+    NK_ASSERT(ctx);
+    NK_ASSERT(ctx->current);
+    NK_ASSERT(ctx->current->layout);
+    NK_ASSERT(text);
+    if (!ctx || !ctx->current || !ctx->current->layout || !text)
+        return;
+
+    /* fetch configuration data */
+    style = &ctx->style;
+    padding = style->window.padding;
+
+    /* calculate size of the text and tooltip */
+    text_len = nk_strlen(text);
+    text_width = style->font->width(style->font->userdata,
+                    style->font->height, text, text_len);
+    text_width += (4 * padding.x);
+    text_height = (style->font->height + 2 * padding.y);
+
+    /* execute tooltip and fill with text */
+    if (nk_tooltip_begin(ctx, (float)text_width)) {
+        nk_layout_row_dynamic(ctx, (float)text_height, 1);
+        nk_text(ctx, text, text_len, NK_TEXT_LEFT);
+        nk_tooltip_end(ctx);
+    }
+}
+#ifdef NK_INCLUDE_STANDARD_VARARGS
+NK_API void
+nk_tooltipf(struct nk_context *ctx, const char *fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    nk_tooltipfv(ctx, fmt, args);
+    va_end(args);
+}
+NK_API void
+nk_tooltipfv(struct nk_context *ctx, const char *fmt, va_list args)
+{
+    char buf[256];
+    nk_strfmt(buf, NK_LEN(buf), fmt, args);
+    nk_tooltip(ctx, buf);
+}
+#endif
+
+
+
+#endif /* NK_IMPLEMENTATION */
+
+/*
+/// ## License
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~none
+///    ------------------------------------------------------------------------------
+///    This software is available under 2 licenses -- choose whichever you prefer.
+///    ------------------------------------------------------------------------------
+///    ALTERNATIVE A - MIT License
+///    Copyright (c) 2016-2018 Micha Mettke
+///    Permission is hereby granted, free of charge, to any person obtaining a copy of
+///    this software and associated documentation files (the "Software"), to deal in
+///    the Software without restriction, including without limitation the rights to
+///    use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+///    of the Software, and to permit persons to whom the Software is furnished to do
+///    so, subject to the following conditions:
+///    The above copyright notice and this permission notice shall be included in all
+///    copies or substantial portions of the Software.
+///    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+///    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+///    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+///    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+///    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+///    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+///    SOFTWARE.
+///    ------------------------------------------------------------------------------
+///    ALTERNATIVE B - Public Domain (www.unlicense.org)
+///    This is free and unencumbered software released into the public domain.
+///    Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+///    software, either in source code form or as a compiled binary, for any purpose,
+///    commercial or non-commercial, and by any means.
+///    In jurisdictions that recognize copyright laws, the author or authors of this
+///    software dedicate any and all copyright interest in the software to the public
+///    domain. We make this dedication for the benefit of the public at large and to
+///    the detriment of our heirs and successors. We intend this dedication to be an
+///    overt act of relinquishment in perpetuity of all present and future rights to
+///    this software under copyright law.
+///    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+///    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+///    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+///    AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+///    ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+///    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+///    ------------------------------------------------------------------------------
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+/// ## Changelog
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~none
+/// [date][x.yy.zz]-[description]
+/// -[date]: date on which the change has been pushed
+/// -[x.yy.zz]: Numerical version string representation. Each version number on the right
+///             resets back to zero if version on the left is incremented.
+///    - [x]: Major version with API and library breaking changes
+///    - [yy]: Minor version with non-breaking API and library changes
+///    - [zz]: Bug fix version with no direct changes to API
+///
+/// - 2019/09/20 (4.01.3) - Fixed a bug wherein combobox cannot be closed by clicking the header
+///                        when NK_BUTTON_TRIGGER_ON_RELEASE is defined.
+/// - 2019/09/10 (4.01.2) - Fixed the nk_cos function, which deviated significantly.
+/// - 2019/09/08 (4.01.1) - Fixed a bug wherein re-baking of fonts caused a segmentation
+///                        fault due to dst_font->glyph_count not being zeroed on subsequent
+///                        bakes of the same set of fonts.
+/// - 2019/06/23 (4.01.0) - Added nk_***_get_scroll and nk_***_set_scroll for groups, windows, and popups.
+/// - 2019/06/12 (4.00.3) - Fix panel background drawing bug.
+/// - 2018/10/31 (4.00.2) - Added NK_KEYSTATE_BASED_INPUT to "fix" state based backends
+///                        like GLFW without breaking key repeat behavior on event based.
+/// - 2018/04/01 (4.00.1) - Fixed calling `nk_convert` multiple time per single frame.
+/// - 2018/04/01 (4.00.0) - BREAKING CHANGE: nk_draw_list_clear no longer tries to
+///                        clear provided buffers. So make sure to either free
+///                        or clear each passed buffer after calling nk_convert.
+/// - 2018/02/23 (3.00.6) - Fixed slider dragging behavior.
+/// - 2018/01/31 (3.00.5) - Fixed overcalculation of cursor data in font baking process.
+/// - 2018/01/31 (3.00.4) - Removed name collision with stb_truetype.
+/// - 2018/01/28 (3.00.3) - Fixed panel window border drawing bug.
+/// - 2018/01/12 (3.00.2) - Added `nk_group_begin_titled` for separed group identifier and title.
+/// - 2018/01/07 (3.00.1) - Started to change documentation style.
+/// - 2018/01/05 (3.00.0) - BREAKING CHANGE: The previous color picker API was broken
+///                        because of conversions between float and byte color representation.
+///                        Color pickers now use floating point values to represent
+///                        HSV values. To get back the old behavior I added some additional
+///                        color conversion functions to cast between nk_color and
+///                        nk_colorf.
+/// - 2017/12/23 (2.00.7) - Fixed small warning.
+/// - 2017/12/23 (2.00.7) - Fixed `nk_edit_buffer` behavior if activated to allow input.
+/// - 2017/12/23 (2.00.7) - Fixed modifyable progressbar dragging visuals and input behavior.
+/// - 2017/12/04 (2.00.6) - Added formated string tooltip widget.
+/// - 2017/11/18 (2.00.5) - Fixed window becoming hidden with flag `NK_WINDOW_NO_INPUT`.
+/// - 2017/11/15 (2.00.4) - Fixed font merging.
+/// - 2017/11/07 (2.00.3) - Fixed window size and position modifier functions.
+/// - 2017/09/14 (2.00.2) - Fixed `nk_edit_buffer` and `nk_edit_focus` behavior.
+/// - 2017/09/14 (2.00.1) - Fixed window closing behavior.
+/// - 2017/09/14 (2.00.0) - BREAKING CHANGE: Modifing window position and size funtions now
+///                        require the name of the window and must happen outside the window
+///                        building process (between function call nk_begin and nk_end).
+/// - 2017/09/11 (1.40.9) - Fixed window background flag if background window is declared last.
+/// - 2017/08/27 (1.40.8) - Fixed `nk_item_is_any_active` for hidden windows.
+/// - 2017/08/27 (1.40.7) - Fixed window background flag.
+/// - 2017/07/07 (1.40.6) - Fixed missing clipping rect check for hovering/clicked
+///                        query for widgets.
+/// - 2017/07/07 (1.40.5) - Fixed drawing bug for vertex output for lines and stroked
+///                        and filled rectangles.
+/// - 2017/07/07 (1.40.4) - Fixed bug in nk_convert trying to add windows that are in
+///                        process of being destroyed.
+/// - 2017/07/07 (1.40.3) - Fixed table internal bug caused by storing table size in
+///                        window instead of directly in table.
+/// - 2017/06/30 (1.40.2) - Removed unneeded semicolon in C++ NK_ALIGNOF macro.
+/// - 2017/06/30 (1.40.1) - Fixed drawing lines smaller or equal zero.
+/// - 2017/06/08 (1.40.0) - Removed the breaking part of last commit. Auto layout now only
+///                        comes in effect if you pass in zero was row height argument.
+/// - 2017/06/08 (1.40.0) - BREAKING CHANGE: while not directly API breaking it will change
+///                        how layouting works. From now there will be an internal minimum
+///                        row height derived from font height. If you need a row smaller than
+///                        that you can directly set it by `nk_layout_set_min_row_height` and
+///                        reset the value back by calling `nk_layout_reset_min_row_height.
+/// - 2017/06/08 (1.39.1) - Fixed property text edit handling bug caused by past `nk_widget` fix.
+/// - 2017/06/08 (1.39.0) - Added function to retrieve window space without calling a `nk_layout_xxx` function.
+/// - 2017/06/06 (1.38.5) - Fixed `nk_convert` return flag for command buffer.
+/// - 2017/05/23 (1.38.4) - Fixed activation behavior for widgets partially clipped.
+/// - 2017/05/10 (1.38.3) - Fixed wrong min window size mouse scaling over boundries.
+/// - 2017/05/09 (1.38.2) - Fixed vertical scrollbar drawing with not enough space.
+/// - 2017/05/09 (1.38.1) - Fixed scaler dragging behavior if window size hits minimum size.
+/// - 2017/05/06 (1.38.0) - Added platform double-click support.
+/// - 2017/04/20 (1.37.1) - Fixed key repeat found inside glfw demo backends.
+/// - 2017/04/20 (1.37.0) - Extended properties with selection and clipboard support.
+/// - 2017/04/20 (1.36.2) - Fixed #405 overlapping rows with zero padding and spacing.
+/// - 2017/04/09 (1.36.1) - Fixed #403 with another widget float error.
+/// - 2017/04/09 (1.36.0) - Added window `NK_WINDOW_NO_INPUT` and `NK_WINDOW_NOT_INTERACTIVE` flags.
+/// - 2017/04/09 (1.35.3) - Fixed buffer heap corruption.
+/// - 2017/03/25 (1.35.2) - Fixed popup overlapping for `NK_WINDOW_BACKGROUND` windows.
+/// - 2017/03/25 (1.35.1) - Fixed windows closing behavior.
+/// - 2017/03/18 (1.35.0) - Added horizontal scroll requested in #377.
+/// - 2017/03/18 (1.34.3) - Fixed long window header titles.
+/// - 2017/03/04 (1.34.2) - Fixed text edit filtering.
+/// - 2017/03/04 (1.34.1) - Fixed group closable flag.
+/// - 2017/02/25 (1.34.0) - Added custom draw command for better language binding support.
+/// - 2017/01/24 (1.33.0) - Added programatic way of remove edit focus.
+/// - 2017/01/24 (1.32.3) - Fixed wrong define for basic type definitions for windows.
+/// - 2017/01/21 (1.32.2) - Fixed input capture from hidden or closed windows.
+/// - 2017/01/21 (1.32.1) - Fixed slider behavior and drawing.
+/// - 2017/01/13 (1.32.0) - Added flag to put scaler into the bottom left corner.
+/// - 2017/01/13 (1.31.0) - Added additional row layouting method to combine both
+///                        dynamic and static widgets.
+/// - 2016/12/31 (1.30.0) - Extended scrollbar offset from 16-bit to 32-bit.
+/// - 2016/12/31 (1.29.2) - Fixed closing window bug of minimized windows.
+/// - 2016/12/03 (1.29.1) - Fixed wrapped text with no seperator and C89 error.
+/// - 2016/12/03 (1.29.0) - Changed text wrapping to process words not characters.
+/// - 2016/11/22 (1.28.6) - Fixed window minimized closing bug.
+/// - 2016/11/19 (1.28.5) - Fixed abstract combo box closing behavior.
+/// - 2016/11/19 (1.28.4) - Fixed tooltip flickering.
+/// - 2016/11/19 (1.28.3) - Fixed memory leak caused by popup repeated closing.
+/// - 2016/11/18 (1.28.2) - Fixed memory leak caused by popup panel allocation.
+/// - 2016/11/10 (1.28.1) - Fixed some warnings and C++ error.
+/// - 2016/11/10 (1.28.0) - Added additional `nk_button` versions which allows to directly
+///                        pass in a style struct to change buttons visual.
+/// - 2016/11/10 (1.27.0) - Added additional `nk_tree` versions to support external state
+///                        storage. Just like last the `nk_group` commit the main
+///                        advantage is that you optionally can minimize nuklears runtime
+///                        memory consumption or handle hash collisions.
+/// - 2016/11/09 (1.26.0) - Added additional `nk_group` version to support external scrollbar
+///                        offset storage. Main advantage is that you can externalize
+///                        the memory management for the offset. It could also be helpful
+///                        if you have a hash collision in `nk_group_begin` but really
+///                        want the name. In addition I added `nk_list_view` which allows
+///                        to draw big lists inside a group without actually having to
+///                        commit the whole list to nuklear (issue #269).
+/// - 2016/10/30 (1.25.1) - Fixed clipping rectangle bug inside `nk_draw_list`.
+/// - 2016/10/29 (1.25.0) - Pulled `nk_panel` memory management into nuklear and out of
+///                        the hands of the user. From now on users don't have to care
+///                        about panels unless they care about some information. If you
+///                        still need the panel just call `nk_window_get_panel`.
+/// - 2016/10/21 (1.24.0) - Changed widget border drawing to stroked rectangle from filled
+///                        rectangle for less overdraw and widget background transparency.
+/// - 2016/10/18 (1.23.0) - Added `nk_edit_focus` for manually edit widget focus control.
+/// - 2016/09/29 (1.22.7) - Fixed deduction of basic type in non `<stdint.h>` compilation.
+/// - 2016/09/29 (1.22.6) - Fixed edit widget UTF-8 text cursor drawing bug.
+/// - 2016/09/28 (1.22.5) - Fixed edit widget UTF-8 text appending/inserting/removing.
+/// - 2016/09/28 (1.22.4) - Fixed drawing bug inside edit widgets which offset all text
+///                        text in every edit widget if one of them is scrolled.
+/// - 2016/09/28 (1.22.3) - Fixed small bug in edit widgets if not active. The wrong
+///                        text length is passed. It should have been in bytes but
+///                        was passed as glyphes.
+/// - 2016/09/20 (1.22.2) - Fixed color button size calculation.
+/// - 2016/09/20 (1.22.1) - Fixed some `nk_vsnprintf` behavior bugs and removed `<stdio.h>`
+///                        again from `NK_INCLUDE_STANDARD_VARARGS`.
+/// - 2016/09/18 (1.22.0) - C89 does not support vsnprintf only C99 and newer as well
+///                        as C++11 and newer. In addition to use vsnprintf you have
+///                        to include <stdio.h>. So just defining `NK_INCLUDE_STD_VAR_ARGS`
+///                        is not enough. That behavior is now fixed. By default if
+///                        both varargs as well as stdio is selected I try to use
+///                        vsnprintf if not possible I will revert to vsprintf. If
+///                        varargs but not stdio was defined I will use my own function.
+/// - 2016/09/15 (1.21.2) - Fixed panel `close` behavior for deeper panel levels.
+/// - 2016/09/15 (1.21.1) - Fixed C++ errors and wrong argument to `nk_panel_get_xxxx`.
+/// - 2016/09/13 (1.21.0) - !BREAKING! Fixed nonblocking popup behavior in menu, combo,
+///                        and contextual which prevented closing in y-direction if
+///                        popup did not reach max height.
+///                        In addition the height parameter was changed into vec2
+///                        for width and height to have more control over the popup size.
+/// - 2016/09/13 (1.20.3) - Cleaned up and extended type selection.
+/// - 2016/09/13 (1.20.2) - Fixed slider behavior hopefully for the last time. This time
+///                        all calculation are correct so no more hackery.
+/// - 2016/09/13 (1.20.1) - Internal change to divide window/panel flags into panel flags and types.
+///                        Suprisinly spend years in C and still happened to confuse types
+///                        with flags. Probably something to take note.
+/// - 2016/09/08 (1.20.0) - Added additional helper function to make it easier to just
+///                        take the produced buffers from `nk_convert` and unplug the
+///                        iteration process from `nk_context`. So now you can
+///                        just use the vertex,element and command buffer + two pointer
+///                        inside the command buffer retrieved by calls `nk__draw_begin`
+///                        and `nk__draw_end` and macro `nk_draw_foreach_bounded`.
+/// - 2016/09/08 (1.19.0) - Added additional asserts to make sure every `nk_xxx_begin` call
+///                        for windows, popups, combobox, menu and contextual is guarded by
+///                        `if` condition and does not produce false drawing output.
+/// - 2016/09/08 (1.18.0) - Changed confusing name for `NK_SYMBOL_RECT_FILLED`, `NK_SYMBOL_RECT`
+///                        to hopefully easier to understand `NK_SYMBOL_RECT_FILLED` and
+///                        `NK_SYMBOL_RECT_OUTLINE`.
+/// - 2016/09/08 (1.17.0) - Changed confusing name for `NK_SYMBOL_CIRLCE_FILLED`, `NK_SYMBOL_CIRCLE`
+///                        to hopefully easier to understand `NK_SYMBOL_CIRCLE_FILLED` and
+///                        `NK_SYMBOL_CIRCLE_OUTLINE`.
+/// - 2016/09/08 (1.16.0) - Added additional checks to select correct types if `NK_INCLUDE_FIXED_TYPES`
+///                        is not defined by supporting the biggest compiler GCC, clang and MSVC.
+/// - 2016/09/07 (1.15.3) - Fixed `NK_INCLUDE_COMMAND_USERDATA` define to not cause an error.
+/// - 2016/09/04 (1.15.2) - Fixed wrong combobox height calculation.
+/// - 2016/09/03 (1.15.1) - Fixed gaps inside combo boxes in OpenGL.
+/// - 2016/09/02 (1.15.0) - Changed nuklear to not have any default vertex layout and
+///                        instead made it user provided. The range of types to convert
+///                        to is quite limited at the moment, but I would be more than
+///                        happy to accept PRs to add additional.
+/// - 2016/08/30 (1.14.2) - Removed unused variables.
+/// - 2016/08/30 (1.14.1) - Fixed C++ build errors.
+/// - 2016/08/30 (1.14.0) - Removed mouse dragging from SDL demo since it does not work correctly.
+/// - 2016/08/30 (1.13.4) - Tweaked some default styling variables.
+/// - 2016/08/30 (1.13.3) - Hopefully fixed drawing bug in slider, in general I would
+///                        refrain from using slider with a big number of steps.
+/// - 2016/08/30 (1.13.2) - Fixed close and minimize button which would fire even if the
+///                        window was in Read Only Mode.
+/// - 2016/08/30 (1.13.1) - Fixed popup panel padding handling which was previously just
+///                        a hack for combo box and menu.
+/// - 2016/08/30 (1.13.0) - Removed `NK_WINDOW_DYNAMIC` flag from public API since
+///                        it is bugged and causes issues in window selection.
+/// - 2016/08/30 (1.12.0) - Removed scaler size. The size of the scaler is now
+///                        determined by the scrollbar size.
+/// - 2016/08/30 (1.11.2) - Fixed some drawing bugs caused by changes from 1.11.0.
+/// - 2016/08/30 (1.11.1) - Fixed overlapping minimized window selection.
+/// - 2016/08/30 (1.11.0) - Removed some internal complexity and overly complex code
+///                        handling panel padding and panel border.
+/// - 2016/08/29 (1.10.0) - Added additional height parameter to `nk_combobox_xxx`.
+/// - 2016/08/29 (1.10.0) - Fixed drawing bug in dynamic popups.
+/// - 2016/08/29 (1.10.0) - Added experimental mouse scrolling to popups, menus and comboboxes.
+/// - 2016/08/26 (1.10.0) - Added window name string prepresentation to account for
+///                        hash collisions. Currently limited to `NK_WINDOW_MAX_NAME`
+///                        which in term can be redefined if not big enough.
+/// - 2016/08/26 (1.10.0) - Added stacks for temporary style/UI changes in code.
+/// - 2016/08/25 (1.10.0) - Changed `nk_input_is_key_pressed` and 'nk_input_is_key_released'
+///                        to account for key press and release happening in one frame.
+/// - 2016/08/25 (1.10.0) - Added additional nk_edit flag to directly jump to the end on activate.
+/// - 2016/08/17 (1.09.6) - Removed invalid check for value zero in `nk_propertyx`.
+/// - 2016/08/16 (1.09.5) - Fixed ROM mode for deeper levels of popup windows parents.
+/// - 2016/08/15 (1.09.4) - Editbox are now still active if enter was pressed with flag
+///                        `NK_EDIT_SIG_ENTER`. Main reasoning is to be able to keep
+///                        typing after commiting.
+/// - 2016/08/15 (1.09.4) - Removed redundant code.
+/// - 2016/08/15 (1.09.4) - Fixed negative numbers in `nk_strtoi` and remove unused variable.
+/// - 2016/08/15 (1.09.3) - Fixed `NK_WINDOW_BACKGROUND` flag behavior to select a background
+///                        window only as selected by hovering and not by clicking.
+/// - 2016/08/14 (1.09.2) - Fixed a bug in font atlas which caused wrong loading
+///                        of glyphes for font with multiple ranges.
+/// - 2016/08/12 (1.09.1) - Added additional function to check if window is currently
+///                        hidden and therefore not visible.
+/// - 2016/08/12 (1.09.1) - nk_window_is_closed now queries the correct flag `NK_WINDOW_CLOSED`
+///                        instead of the old flag `NK_WINDOW_HIDDEN`.
+/// - 2016/08/09 (1.09.0) - Added additional double version to nk_property and changed
+///                        the underlying implementation to not cast to float and instead
+///                        work directly on the given values.
+/// - 2016/08/09 (1.08.0) - Added additional define to overwrite library internal
+///                        floating pointer number to string conversion for additional
+///                        precision.
+/// - 2016/08/09 (1.08.0) - Added additional define to overwrite library internal
+///                        string to floating point number conversion for additional
+///                        precision.
+/// - 2016/08/08 (1.07.2) - Fixed compiling error without define `NK_INCLUDE_FIXED_TYPE`.
+/// - 2016/08/08 (1.07.1) - Fixed possible floating point error inside `nk_widget` leading
+///                        to wrong wiget width calculation which results in widgets falsly
+///                        becomming tagged as not inside window and cannot be accessed.
+/// - 2016/08/08 (1.07.0) - Nuklear now differentiates between hiding a window (NK_WINDOW_HIDDEN) and
+///                        closing a window (NK_WINDOW_CLOSED). A window can be hidden/shown
+///                        by using `nk_window_show` and closed by either clicking the close
+///                        icon in a window or by calling `nk_window_close`. Only closed
+///                        windows get removed at the end of the frame while hidden windows
+///                        remain.
+/// - 2016/08/08 (1.06.0) - Added `nk_edit_string_zero_terminated` as a second option to
+///                        `nk_edit_string` which takes, edits and outputs a '\0' terminated string.
+/// - 2016/08/08 (1.05.4) - Fixed scrollbar auto hiding behavior.
+/// - 2016/08/08 (1.05.3) - Fixed wrong panel padding selection in `nk_layout_widget_space`.
+/// - 2016/08/07 (1.05.2) - Fixed old bug in dynamic immediate mode layout API, calculating
+///                        wrong item spacing and panel width.
+/// - 2016/08/07 (1.05.1) - Hopefully finally fixed combobox popup drawing bug.
+/// - 2016/08/07 (1.05.0) - Split varargs away from `NK_INCLUDE_STANDARD_IO` into own
+///                        define `NK_INCLUDE_STANDARD_VARARGS` to allow more fine
+///                        grained controlled over library includes.
+/// - 2016/08/06 (1.04.5) - Changed memset calls to `NK_MEMSET`.
+/// - 2016/08/04 (1.04.4) - Fixed fast window scaling behavior.
+/// - 2016/08/04 (1.04.3) - Fixed window scaling, movement bug which appears if you
+///                        move/scale a window and another window is behind it.
+///                        If you are fast enough then the window behind gets activated
+///                        and the operation is blocked. I now require activating
+///                        by hovering only if mouse is not pressed.
+/// - 2016/08/04 (1.04.2) - Fixed changing fonts.
+/// - 2016/08/03 (1.04.1) - Fixed `NK_WINDOW_BACKGROUND` behavior.
+/// - 2016/08/03 (1.04.0) - Added color parameter to `nk_draw_image`.
+/// - 2016/08/03 (1.04.0) - Added additional window padding style attributes for
+///                        sub windows (combo, menu, ...).
+/// - 2016/08/03 (1.04.0) - Added functions to show/hide software cursor.
+/// - 2016/08/03 (1.04.0) - Added `NK_WINDOW_BACKGROUND` flag to force a window
+///                        to be always in the background of the screen.
+/// - 2016/08/03 (1.03.2) - Removed invalid assert macro for NK_RGB color picker.
+/// - 2016/08/01 (1.03.1) - Added helper macros into header include guard.
+/// - 2016/07/29 (1.03.0) - Moved the window/table pool into the header part to
+///                        simplify memory management by removing the need to
+///                        allocate the pool.
+/// - 2016/07/29 (1.02.0) - Added auto scrollbar hiding window flag which if enabled
+///                        will hide the window scrollbar after NK_SCROLLBAR_HIDING_TIMEOUT
+///                        seconds without window interaction. To make it work
+///                        you have to also set a delta time inside the `nk_context`.
+/// - 2016/07/25 (1.01.1) - Fixed small panel and panel border drawing bugs.
+/// - 2016/07/15 (1.01.0) - Added software cursor to `nk_style` and `nk_context`.
+/// - 2016/07/15 (1.01.0) - Added const correctness to `nk_buffer_push' data argument.
+/// - 2016/07/15 (1.01.0) - Removed internal font baking API and simplified
+///                        font atlas memory management by converting pointer
+///                        arrays for fonts and font configurations to lists.
+/// - 2016/07/15 (1.00.0) - Changed button API to use context dependend button
+///                        behavior instead of passing it for every function call.
+/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+/// ## Gallery
+/// ![Figure [blue]: Feature overview with blue color styling](https://cloud.githubusercontent.com/assets/8057201/13538240/acd96876-e249-11e5-9547-5ac0b19667a0.png)
+/// ![Figure [red]: Feature overview with red color styling](https://cloud.githubusercontent.com/assets/8057201/13538243/b04acd4c-e249-11e5-8fd2-ad7744a5b446.png)
+/// ![Figure [widgets]: Widget overview](https://cloud.githubusercontent.com/assets/8057201/11282359/3325e3c6-8eff-11e5-86cb-cf02b0596087.png)
+/// ![Figure [blackwhite]: Black and white](https://cloud.githubusercontent.com/assets/8057201/11033668/59ab5d04-86e5-11e5-8091-c56f16411565.png)
+/// ![Figure [filexp]: File explorer](https://cloud.githubusercontent.com/assets/8057201/10718115/02a9ba08-7b6b-11e5-950f-adacdd637739.png)
+/// ![Figure [opengl]: OpenGL Editor](https://cloud.githubusercontent.com/assets/8057201/12779619/2a20d72c-ca69-11e5-95fe-4edecf820d5c.png)
+/// ![Figure [nodedit]: Node Editor](https://cloud.githubusercontent.com/assets/8057201/9976995/e81ac04a-5ef7-11e5-872b-acd54fbeee03.gif)
+/// ![Figure [skinning]: Using skinning in Nuklear](https://cloud.githubusercontent.com/assets/8057201/15991632/76494854-30b8-11e6-9555-a69840d0d50b.png)
+/// ![Figure [bf]: Heavy modified version](https://cloud.githubusercontent.com/assets/8057201/14902576/339926a8-0d9c-11e6-9fee-a8b73af04473.png)
+///
+/// ## Credits
+/// Developed by Micha Mettke and every direct or indirect github contributor. <br /><br />
+///
+/// Embeds [stb_texedit](https://github.com/nothings/stb/blob/master/stb_textedit.h), [stb_truetype](https://github.com/nothings/stb/blob/master/stb_truetype.h) and [stb_rectpack](https://github.com/nothings/stb/blob/master/stb_rect_pack.h) by Sean Barret (public domain) <br />
+/// Uses [stddoc.c](https://github.com/r-lyeh/stddoc.c) from r-lyeh@github.com for documentation generation <br /><br />
+/// Embeds ProggyClean.ttf font by Tristan Grimmer (MIT license). <br />
+///
+/// Big thank you to Omar Cornut (ocornut@github) for his [imgui library](https://github.com/ocornut/imgui) and
+/// giving me the inspiration for this library, Casey Muratori for handmade hero
+/// and his original immediate mode graphical user interface idea and Sean
+/// Barret for his amazing single header libraries which restored my faith
+/// in libraries and brought me to create some of my own. Finally Apoorva Joshi
+/// for his single header file packer.
+*/
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/nuklear_glfw_gl2.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/nuklear_glfw_gl2.h
new file mode 100644
index 000000000000..a959b14a5c28
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/nuklear_glfw_gl2.h
@@ -0,0 +1,381 @@
+/*
+ * Nuklear - v1.32.0 - public domain
+ * no warrenty implied; use at your own risk.
+ * authored from 2015-2017 by Micha Mettke
+ */
+/*
+ * ==============================================================
+ *
+ *                              API
+ *
+ * ===============================================================
+ */
+#ifndef NK_GLFW_GL2_H_
+#define NK_GLFW_GL2_H_
+
+#include <GLFW/glfw3.h>
+
+enum nk_glfw_init_state{
+    NK_GLFW3_DEFAULT = 0,
+    NK_GLFW3_INSTALL_CALLBACKS
+};
+NK_API struct nk_context*   nk_glfw3_init(GLFWwindow *win, enum nk_glfw_init_state);
+NK_API void                 nk_glfw3_font_stash_begin(struct nk_font_atlas **atlas);
+NK_API void                 nk_glfw3_font_stash_end(void);
+
+NK_API void                 nk_glfw3_new_frame(void);
+NK_API void                 nk_glfw3_render(enum nk_anti_aliasing);
+NK_API void                 nk_glfw3_shutdown(void);
+
+NK_API void                 nk_glfw3_char_callback(GLFWwindow *win, unsigned int codepoint);
+NK_API void                 nk_gflw3_scroll_callback(GLFWwindow *win, double xoff, double yoff);
+
+#endif
+
+/*
+ * ==============================================================
+ *
+ *                          IMPLEMENTATION
+ *
+ * ===============================================================
+ */
+#ifdef NK_GLFW_GL2_IMPLEMENTATION
+
+#ifndef NK_GLFW_TEXT_MAX
+#define NK_GLFW_TEXT_MAX 256
+#endif
+#ifndef NK_GLFW_DOUBLE_CLICK_LO
+#define NK_GLFW_DOUBLE_CLICK_LO 0.02
+#endif
+#ifndef NK_GLFW_DOUBLE_CLICK_HI
+#define NK_GLFW_DOUBLE_CLICK_HI 0.2
+#endif
+
+struct nk_glfw_device {
+    struct nk_buffer cmds;
+    struct nk_draw_null_texture null;
+    GLuint font_tex;
+};
+
+struct nk_glfw_vertex {
+    float position[2];
+    float uv[2];
+    nk_byte col[4];
+};
+
+static struct nk_glfw {
+    GLFWwindow *win;
+    int width, height;
+    int display_width, display_height;
+    struct nk_glfw_device ogl;
+    struct nk_context ctx;
+    struct nk_font_atlas atlas;
+    struct nk_vec2 fb_scale;
+    unsigned int text[NK_GLFW_TEXT_MAX];
+    int text_len;
+    struct nk_vec2 scroll;
+    double last_button_click;
+    int is_double_click_down;
+    struct nk_vec2 double_click_pos;
+} glfw;
+
+NK_INTERN void
+nk_glfw3_device_upload_atlas(const void *image, int width, int height)
+{
+    struct nk_glfw_device *dev = &glfw.ogl;
+    glGenTextures(1, &dev->font_tex);
+    glBindTexture(GL_TEXTURE_2D, dev->font_tex);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
+                GL_RGBA, GL_UNSIGNED_BYTE, image);
+}
+
+NK_API void
+nk_glfw3_render(enum nk_anti_aliasing AA)
+{
+    /* setup global state */
+    struct nk_glfw_device *dev = &glfw.ogl;
+    glPushAttrib(GL_ENABLE_BIT|GL_COLOR_BUFFER_BIT|GL_TRANSFORM_BIT);
+    glDisable(GL_CULL_FACE);
+    glDisable(GL_DEPTH_TEST);
+    glEnable(GL_SCISSOR_TEST);
+    glEnable(GL_BLEND);
+    glEnable(GL_TEXTURE_2D);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+    /* setup viewport/project */
+    glViewport(0,0,(GLsizei)glfw.display_width,(GLsizei)glfw.display_height);
+    glMatrixMode(GL_PROJECTION);
+    glPushMatrix();
+    glLoadIdentity();
+    glOrtho(0.0f, glfw.width, glfw.height, 0.0f, -1.0f, 1.0f);
+    glMatrixMode(GL_MODELVIEW);
+    glPushMatrix();
+    glLoadIdentity();
+
+    glEnableClientState(GL_VERTEX_ARRAY);
+    glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+    glEnableClientState(GL_COLOR_ARRAY);
+    {
+        GLsizei vs = sizeof(struct nk_glfw_vertex);
+        size_t vp = offsetof(struct nk_glfw_vertex, position);
+        size_t vt = offsetof(struct nk_glfw_vertex, uv);
+        size_t vc = offsetof(struct nk_glfw_vertex, col);
+
+        /* convert from command queue into draw list and draw to screen */
+        const struct nk_draw_command *cmd;
+        const nk_draw_index *offset = NULL;
+        struct nk_buffer vbuf, ebuf;
+
+        /* fill convert configuration */
+        struct nk_convert_config config;
+        static const struct nk_draw_vertex_layout_element vertex_layout[] = {
+            {NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, position)},
+            {NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, uv)},
+            {NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_glfw_vertex, col)},
+            {NK_VERTEX_LAYOUT_END}
+        };
+        NK_MEMSET(&config, 0, sizeof(config));
+        config.vertex_layout = vertex_layout;
+        config.vertex_size = sizeof(struct nk_glfw_vertex);
+        config.vertex_alignment = NK_ALIGNOF(struct nk_glfw_vertex);
+        config.null = dev->null;
+        config.circle_segment_count = 22;
+        config.curve_segment_count = 22;
+        config.arc_segment_count = 22;
+        config.global_alpha = 1.0f;
+        config.shape_AA = AA;
+        config.line_AA = AA;
+
+        /* convert shapes into vertexes */
+        nk_buffer_init_default(&vbuf);
+        nk_buffer_init_default(&ebuf);
+        nk_convert(&glfw.ctx, &dev->cmds, &vbuf, &ebuf, &config);
+
+        /* setup vertex buffer pointer */
+        {const void *vertices = nk_buffer_memory_const(&vbuf);
+        glVertexPointer(2, GL_FLOAT, vs, (const void*)((const nk_byte*)vertices + vp));
+        glTexCoordPointer(2, GL_FLOAT, vs, (const void*)((const nk_byte*)vertices + vt));
+        glColorPointer(4, GL_UNSIGNED_BYTE, vs, (const void*)((const nk_byte*)vertices + vc));}
+
+        /* iterate over and execute each draw command */
+        offset = (const nk_draw_index*)nk_buffer_memory_const(&ebuf);
+        nk_draw_foreach(cmd, &glfw.ctx, &dev->cmds)
+        {
+            if (!cmd->elem_count) continue;
+            glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
+            glScissor(
+                (GLint)(cmd->clip_rect.x * glfw.fb_scale.x),
+                (GLint)((glfw.height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h)) * glfw.fb_scale.y),
+                (GLint)(cmd->clip_rect.w * glfw.fb_scale.x),
+                (GLint)(cmd->clip_rect.h * glfw.fb_scale.y));
+            glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
+            offset += cmd->elem_count;
+        }
+        nk_clear(&glfw.ctx);
+        nk_buffer_free(&vbuf);
+        nk_buffer_free(&ebuf);
+    }
+
+    /* default OpenGL state */
+    glDisableClientState(GL_VERTEX_ARRAY);
+    glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+    glDisableClientState(GL_COLOR_ARRAY);
+
+    glDisable(GL_CULL_FACE);
+    glDisable(GL_DEPTH_TEST);
+    glDisable(GL_SCISSOR_TEST);
+    glDisable(GL_BLEND);
+    glDisable(GL_TEXTURE_2D);
+
+    glBindTexture(GL_TEXTURE_2D, 0);
+    glMatrixMode(GL_MODELVIEW);
+    glPopMatrix();
+    glMatrixMode(GL_PROJECTION);
+    glPopMatrix();
+    glPopAttrib();
+}
+
+NK_API void
+nk_glfw3_char_callback(GLFWwindow *win, unsigned int codepoint)
+{
+    (void)win;
+    if (glfw.text_len < NK_GLFW_TEXT_MAX)
+        glfw.text[glfw.text_len++] = codepoint;
+}
+
+NK_API void
+nk_gflw3_scroll_callback(GLFWwindow *win, double xoff, double yoff)
+{
+    (void)win; (void)xoff;
+    glfw.scroll.x += (float)xoff;
+    glfw.scroll.y += (float)yoff;
+}
+
+NK_API void
+nk_glfw3_mouse_button_callback(GLFWwindow* window, int button, int action, int mods)
+{
+    double x, y;
+    if (button != GLFW_MOUSE_BUTTON_LEFT) return;
+    glfwGetCursorPos(window, &x, &y);
+    if (action == GLFW_PRESS)  {
+        double dt = glfwGetTime() - glfw.last_button_click;
+        if (dt > NK_GLFW_DOUBLE_CLICK_LO && dt < NK_GLFW_DOUBLE_CLICK_HI) {
+            glfw.is_double_click_down = nk_true;
+            glfw.double_click_pos = nk_vec2((float)x, (float)y);
+        }
+        glfw.last_button_click = glfwGetTime();
+    } else glfw.is_double_click_down = nk_false;
+}
+
+NK_INTERN void
+nk_glfw3_clipboard_paste(nk_handle usr, struct nk_text_edit *edit)
+{
+    const char *text = glfwGetClipboardString(glfw.win);
+    if (text) nk_textedit_paste(edit, text, nk_strlen(text));
+    (void)usr;
+}
+
+NK_INTERN void
+nk_glfw3_clipboard_copy(nk_handle usr, const char *text, int len)
+{
+    char *str = 0;
+    (void)usr;
+    if (!len) return;
+    str = (char*)malloc((size_t)len+1);
+    if (!str) return;
+    NK_MEMCPY(str, text, (size_t)len);
+    str[len] = '\0';
+    glfwSetClipboardString(glfw.win, str);
+    free(str);
+}
+
+NK_API struct nk_context*
+nk_glfw3_init(GLFWwindow *win, enum nk_glfw_init_state init_state)
+{
+    glfw.win = win;
+    if (init_state == NK_GLFW3_INSTALL_CALLBACKS) {
+        glfwSetScrollCallback(win, nk_gflw3_scroll_callback);
+        glfwSetCharCallback(win, nk_glfw3_char_callback);
+        glfwSetMouseButtonCallback(win, nk_glfw3_mouse_button_callback);
+    }
+    nk_init_default(&glfw.ctx, 0);
+    glfw.ctx.clip.copy = nk_glfw3_clipboard_copy;
+    glfw.ctx.clip.paste = nk_glfw3_clipboard_paste;
+    glfw.ctx.clip.userdata = nk_handle_ptr(0);
+    nk_buffer_init_default(&glfw.ogl.cmds);
+
+    glfw.is_double_click_down = nk_false;
+    glfw.double_click_pos = nk_vec2(0, 0);
+
+    return &glfw.ctx;
+}
+
+NK_API void
+nk_glfw3_font_stash_begin(struct nk_font_atlas **atlas)
+{
+    nk_font_atlas_init_default(&glfw.atlas);
+    nk_font_atlas_begin(&glfw.atlas);
+    *atlas = &glfw.atlas;
+}
+
+NK_API void
+nk_glfw3_font_stash_end(void)
+{
+    const void *image; int w, h;
+    image = nk_font_atlas_bake(&glfw.atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
+    nk_glfw3_device_upload_atlas(image, w, h);
+    nk_font_atlas_end(&glfw.atlas, nk_handle_id((int)glfw.ogl.font_tex), &glfw.ogl.null);
+    if (glfw.atlas.default_font)
+        nk_style_set_font(&glfw.ctx, &glfw.atlas.default_font->handle);
+}
+
+NK_API void
+nk_glfw3_new_frame(void)
+{
+    int i;
+    double x, y;
+    struct nk_context *ctx = &glfw.ctx;
+    struct GLFWwindow *win = glfw.win;
+
+    glfwGetWindowSize(win, &glfw.width, &glfw.height);
+    glfwGetFramebufferSize(win, &glfw.display_width, &glfw.display_height);
+    glfw.fb_scale.x = (float)glfw.display_width/(float)glfw.width;
+    glfw.fb_scale.y = (float)glfw.display_height/(float)glfw.height;
+
+    nk_input_begin(ctx);
+    for (i = 0; i < glfw.text_len; ++i)
+        nk_input_unicode(ctx, glfw.text[i]);
+
+    /* optional grabbing behavior */
+    if (ctx->input.mouse.grab)
+        glfwSetInputMode(glfw.win, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
+    else if (ctx->input.mouse.ungrab)
+        glfwSetInputMode(glfw.win, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
+
+    nk_input_key(ctx, NK_KEY_DEL, glfwGetKey(win, GLFW_KEY_DELETE) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_ENTER, glfwGetKey(win, GLFW_KEY_ENTER) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_TAB, glfwGetKey(win, GLFW_KEY_TAB) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_BACKSPACE, glfwGetKey(win, GLFW_KEY_BACKSPACE) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_UP, glfwGetKey(win, GLFW_KEY_UP) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_TEXT_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_TEXT_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SCROLL_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SCROLL_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SCROLL_DOWN, glfwGetKey(win, GLFW_KEY_PAGE_DOWN) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SCROLL_UP, glfwGetKey(win, GLFW_KEY_PAGE_UP) == GLFW_PRESS);
+    nk_input_key(ctx, NK_KEY_SHIFT, glfwGetKey(win, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS||
+                                    glfwGetKey(win, GLFW_KEY_RIGHT_SHIFT) == GLFW_PRESS);
+
+    if (glfwGetKey(win, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS ||
+        glfwGetKey(win, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS) {
+        nk_input_key(ctx, NK_KEY_COPY, glfwGetKey(win, GLFW_KEY_C) == GLFW_PRESS);
+        nk_input_key(ctx, NK_KEY_PASTE, glfwGetKey(win, GLFW_KEY_V) == GLFW_PRESS);
+        nk_input_key(ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_X) == GLFW_PRESS);
+        nk_input_key(ctx, NK_KEY_TEXT_UNDO, glfwGetKey(win, GLFW_KEY_Z) == GLFW_PRESS);
+        nk_input_key(ctx, NK_KEY_TEXT_REDO, glfwGetKey(win, GLFW_KEY_R) == GLFW_PRESS);
+        nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
+        nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
+        nk_input_key(ctx, NK_KEY_TEXT_LINE_START, glfwGetKey(win, GLFW_KEY_B) == GLFW_PRESS);
+        nk_input_key(ctx, NK_KEY_TEXT_LINE_END, glfwGetKey(win, GLFW_KEY_E) == GLFW_PRESS);
+    } else {
+        nk_input_key(ctx, NK_KEY_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
+        nk_input_key(ctx, NK_KEY_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
+        nk_input_key(ctx, NK_KEY_COPY, 0);
+        nk_input_key(ctx, NK_KEY_PASTE, 0);
+        nk_input_key(ctx, NK_KEY_CUT, 0);
+        nk_input_key(ctx, NK_KEY_SHIFT, 0);
+    }
+
+    glfwGetCursorPos(win, &x, &y);
+    nk_input_motion(ctx, (int)x, (int)y);
+    if (ctx->input.mouse.grabbed) {
+        glfwSetCursorPos(glfw.win, (double)ctx->input.mouse.prev.x, (double)ctx->input.mouse.prev.y);
+        ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
+        ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
+    }
+
+    nk_input_button(ctx, NK_BUTTON_LEFT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS);
+    nk_input_button(ctx, NK_BUTTON_MIDDLE, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_MIDDLE) == GLFW_PRESS);
+    nk_input_button(ctx, NK_BUTTON_RIGHT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS);
+    nk_input_button(ctx, NK_BUTTON_DOUBLE, (int)glfw.double_click_pos.x, (int)glfw.double_click_pos.y, glfw.is_double_click_down);
+    nk_input_scroll(ctx, glfw.scroll);
+    nk_input_end(&glfw.ctx);
+    glfw.text_len = 0;
+    glfw.scroll = nk_vec2(0,0);
+}
+
+NK_API
+void nk_glfw3_shutdown(void)
+{
+    struct nk_glfw_device *dev = &glfw.ogl;
+    nk_font_atlas_clear(&glfw.atlas);
+    nk_free(&glfw.ctx);
+    glDeleteTextures(1, &dev->font_tex);
+    nk_buffer_free(&dev->cmds);
+    NK_MEMSET(&glfw, 0, sizeof(glfw));
+}
+
+#endif
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/stb_image_write.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/stb_image_write.h
new file mode 100644
index 000000000000..e4b32ed1bc32
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/stb_image_write.h
@@ -0,0 +1,1724 @@
+/* stb_image_write - v1.16 - public domain - http://nothings.org/stb
+   writes out PNG/BMP/TGA/JPEG/HDR images to C stdio - Sean Barrett 2010-2015
+                                     no warranty implied; use at your own risk
+
+   Before #including,
+
+       #define STB_IMAGE_WRITE_IMPLEMENTATION
+
+   in the file that you want to have the implementation.
+
+   Will probably not work correctly with strict-aliasing optimizations.
+
+ABOUT:
+
+   This header file is a library for writing images to C stdio or a callback.
+
+   The PNG output is not optimal; it is 20-50% larger than the file
+   written by a decent optimizing implementation; though providing a custom
+   zlib compress function (see STBIW_ZLIB_COMPRESS) can mitigate that.
+   This library is designed for source code compactness and simplicity,
+   not optimal image file size or run-time performance.
+
+BUILDING:
+
+   You can #define STBIW_ASSERT(x) before the #include to avoid using assert.h.
+   You can #define STBIW_MALLOC(), STBIW_REALLOC(), and STBIW_FREE() to replace
+   malloc,realloc,free.
+   You can #define STBIW_MEMMOVE() to replace memmove()
+   You can #define STBIW_ZLIB_COMPRESS to use a custom zlib-style compress function
+   for PNG compression (instead of the builtin one), it must have the following signature:
+   unsigned char * my_compress(unsigned char *data, int data_len, int *out_len, int quality);
+   The returned data will be freed with STBIW_FREE() (free() by default),
+   so it must be heap allocated with STBIW_MALLOC() (malloc() by default),
+
+UNICODE:
+
+   If compiling for Windows and you wish to use Unicode filenames, compile
+   with
+       #define STBIW_WINDOWS_UTF8
+   and pass utf8-encoded filenames. Call stbiw_convert_wchar_to_utf8 to convert
+   Windows wchar_t filenames to utf8.
+
+USAGE:
+
+   There are five functions, one for each image file format:
+
+     int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes);
+     int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data);
+     int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data);
+     int stbi_write_jpg(char const *filename, int w, int h, int comp, const void *data, int quality);
+     int stbi_write_hdr(char const *filename, int w, int h, int comp, const float *data);
+
+     void stbi_flip_vertically_on_write(int flag); // flag is non-zero to flip data vertically
+
+   There are also five equivalent functions that use an arbitrary write function. You are
+   expected to open/close your file-equivalent before and after calling these:
+
+     int stbi_write_png_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void  *data, int stride_in_bytes);
+     int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void  *data);
+     int stbi_write_tga_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void  *data);
+     int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const float *data);
+     int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality);
+
+   where the callback is:
+      void stbi_write_func(void *context, void *data, int size);
+
+   You can configure it with these global variables:
+      int stbi_write_tga_with_rle;             // defaults to true; set to 0 to disable RLE
+      int stbi_write_png_compression_level;    // defaults to 8; set to higher for more compression
+      int stbi_write_force_png_filter;         // defaults to -1; set to 0..5 to force a filter mode
+
+
+   You can define STBI_WRITE_NO_STDIO to disable the file variant of these
+   functions, so the library will not use stdio.h at all. However, this will
+   also disable HDR writing, because it requires stdio for formatted output.
+
+   Each function returns 0 on failure and non-0 on success.
+
+   The functions create an image file defined by the parameters. The image
+   is a rectangle of pixels stored from left-to-right, top-to-bottom.
+   Each pixel contains 'comp' channels of data stored interleaved with 8-bits
+   per channel, in the following order: 1=Y, 2=YA, 3=RGB, 4=RGBA. (Y is
+   monochrome color.) The rectangle is 'w' pixels wide and 'h' pixels tall.
+   The *data pointer points to the first byte of the top-left-most pixel.
+   For PNG, "stride_in_bytes" is the distance in bytes from the first byte of
+   a row of pixels to the first byte of the next row of pixels.
+
+   PNG creates output files with the same number of components as the input.
+   The BMP format expands Y to RGB in the file format and does not
+   output alpha.
+
+   PNG supports writing rectangles of data even when the bytes storing rows of
+   data are not consecutive in memory (e.g. sub-rectangles of a larger image),
+   by supplying the stride between the beginning of adjacent rows. The other
+   formats do not. (Thus you cannot write a native-format BMP through the BMP
+   writer, both because it is in BGR order and because it may have padding
+   at the end of the line.)
+
+   PNG allows you to set the deflate compression level by setting the global
+   variable 'stbi_write_png_compression_level' (it defaults to 8).
+
+   HDR expects linear float data. Since the format is always 32-bit rgb(e)
+   data, alpha (if provided) is discarded, and for monochrome data it is
+   replicated across all three channels.
+
+   TGA supports RLE or non-RLE compressed data. To use non-RLE-compressed
+   data, set the global variable 'stbi_write_tga_with_rle' to 0.
+
+   JPEG does ignore alpha channels in input data; quality is between 1 and 100.
+   Higher quality looks better but results in a bigger image.
+   JPEG baseline (no JPEG progressive).
+
+CREDITS:
+
+
+   Sean Barrett           -    PNG/BMP/TGA
+   Baldur Karlsson        -    HDR
+   Jean-Sebastien Guay    -    TGA monochrome
+   Tim Kelsey             -    misc enhancements
+   Alan Hickman           -    TGA RLE
+   Emmanuel Julien        -    initial file IO callback implementation
+   Jon Olick              -    original jo_jpeg.cpp code
+   Daniel Gibson          -    integrate JPEG, allow external zlib
+   Aarni Koskela          -    allow choosing PNG filter
+
+   bugfixes:
+      github:Chribba
+      Guillaume Chereau
+      github:jry2
+      github:romigrou
+      Sergio Gonzalez
+      Jonas Karlsson
+      Filip Wasil
+      Thatcher Ulrich
+      github:poppolopoppo
+      Patrick Boettcher
+      github:xeekworx
+      Cap Petschulat
+      Simon Rodriguez
+      Ivan Tikhonov
+      github:ignotion
+      Adam Schackart
+      Andrew Kensler
+
+LICENSE
+
+  See end of file for license information.
+
+*/
+
+#ifndef INCLUDE_STB_IMAGE_WRITE_H
+#define INCLUDE_STB_IMAGE_WRITE_H
+
+#include <stdlib.h>
+
+// if STB_IMAGE_WRITE_STATIC causes problems, try defining STBIWDEF to 'inline' or 'static inline'
+#ifndef STBIWDEF
+#ifdef STB_IMAGE_WRITE_STATIC
+#define STBIWDEF  static
+#else
+#ifdef __cplusplus
+#define STBIWDEF  extern "C"
+#else
+#define STBIWDEF  extern
+#endif
+#endif
+#endif
+
+#ifndef STB_IMAGE_WRITE_STATIC  // C++ forbids static forward declarations
+STBIWDEF int stbi_write_tga_with_rle;
+STBIWDEF int stbi_write_png_compression_level;
+STBIWDEF int stbi_write_force_png_filter;
+#endif
+
+#ifndef STBI_WRITE_NO_STDIO
+STBIWDEF int stbi_write_png(char const *filename, int w, int h, int comp, const void  *data, int stride_in_bytes);
+STBIWDEF int stbi_write_bmp(char const *filename, int w, int h, int comp, const void  *data);
+STBIWDEF int stbi_write_tga(char const *filename, int w, int h, int comp, const void  *data);
+STBIWDEF int stbi_write_hdr(char const *filename, int w, int h, int comp, const float *data);
+STBIWDEF int stbi_write_jpg(char const *filename, int x, int y, int comp, const void  *data, int quality);
+
+#ifdef STBIW_WINDOWS_UTF8
+STBIWDEF int stbiw_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input);
+#endif
+#endif
+
+typedef void stbi_write_func(void *context, void *data, int size);
+
+STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void  *data, int stride_in_bytes);
+STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void  *data);
+STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void  *data);
+STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const float *data);
+STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void  *data, int quality);
+
+STBIWDEF void stbi_flip_vertically_on_write(int flip_boolean);
+
+#endif//INCLUDE_STB_IMAGE_WRITE_H
+
+#ifdef STB_IMAGE_WRITE_IMPLEMENTATION
+
+#ifdef _WIN32
+   #ifndef _CRT_SECURE_NO_WARNINGS
+   #define _CRT_SECURE_NO_WARNINGS
+   #endif
+   #ifndef _CRT_NONSTDC_NO_DEPRECATE
+   #define _CRT_NONSTDC_NO_DEPRECATE
+   #endif
+#endif
+
+#ifndef STBI_WRITE_NO_STDIO
+#include <stdio.h>
+#endif // STBI_WRITE_NO_STDIO
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#if defined(STBIW_MALLOC) && defined(STBIW_FREE) && (defined(STBIW_REALLOC) || defined(STBIW_REALLOC_SIZED))
+// ok
+#elif !defined(STBIW_MALLOC) && !defined(STBIW_FREE) && !defined(STBIW_REALLOC) && !defined(STBIW_REALLOC_SIZED)
+// ok
+#else
+#error "Must define all or none of STBIW_MALLOC, STBIW_FREE, and STBIW_REALLOC (or STBIW_REALLOC_SIZED)."
+#endif
+
+#ifndef STBIW_MALLOC
+#define STBIW_MALLOC(sz)        malloc(sz)
+#define STBIW_REALLOC(p,newsz)  realloc(p,newsz)
+#define STBIW_FREE(p)           free(p)
+#endif
+
+#ifndef STBIW_REALLOC_SIZED
+#define STBIW_REALLOC_SIZED(p,oldsz,newsz) STBIW_REALLOC(p,newsz)
+#endif
+
+
+#ifndef STBIW_MEMMOVE
+#define STBIW_MEMMOVE(a,b,sz) memmove(a,b,sz)
+#endif
+
+
+#ifndef STBIW_ASSERT
+#include <assert.h>
+#define STBIW_ASSERT(x) assert(x)
+#endif
+
+#define STBIW_UCHAR(x) (unsigned char) ((x) & 0xff)
+
+#ifdef STB_IMAGE_WRITE_STATIC
+static int stbi_write_png_compression_level = 8;
+static int stbi_write_tga_with_rle = 1;
+static int stbi_write_force_png_filter = -1;
+#else
+int stbi_write_png_compression_level = 8;
+int stbi_write_tga_with_rle = 1;
+int stbi_write_force_png_filter = -1;
+#endif
+
+static int stbi__flip_vertically_on_write = 0;
+
+STBIWDEF void stbi_flip_vertically_on_write(int flag)
+{
+   stbi__flip_vertically_on_write = flag;
+}
+
+typedef struct
+{
+   stbi_write_func *func;
+   void *context;
+   unsigned char buffer[64];
+   int buf_used;
+} stbi__write_context;
+
+// initialize a callback-based context
+static void stbi__start_write_callbacks(stbi__write_context *s, stbi_write_func *c, void *context)
+{
+   s->func    = c;
+   s->context = context;
+}
+
+#ifndef STBI_WRITE_NO_STDIO
+
+static void stbi__stdio_write(void *context, void *data, int size)
+{
+   fwrite(data,1,size,(FILE*) context);
+}
+
+#if defined(_WIN32) && defined(STBIW_WINDOWS_UTF8)
+#ifdef __cplusplus
+#define STBIW_EXTERN extern "C"
+#else
+#define STBIW_EXTERN extern
+#endif
+STBIW_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide);
+STBIW_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default);
+
+STBIWDEF int stbiw_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input)
+{
+   return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL);
+}
+#endif
+
+static FILE *stbiw__fopen(char const *filename, char const *mode)
+{
+   FILE *f;
+#if defined(_WIN32) && defined(STBIW_WINDOWS_UTF8)
+   wchar_t wMode[64];
+   wchar_t wFilename[1024];
+   if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename)/sizeof(*wFilename)))
+      return 0;
+
+   if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode)/sizeof(*wMode)))
+      return 0;
+
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+   if (0 != _wfopen_s(&f, wFilename, wMode))
+      f = 0;
+#else
+   f = _wfopen(wFilename, wMode);
+#endif
+
+#elif defined(_MSC_VER) && _MSC_VER >= 1400
+   if (0 != fopen_s(&f, filename, mode))
+      f=0;
+#else
+   f = fopen(filename, mode);
+#endif
+   return f;
+}
+
+static int stbi__start_write_file(stbi__write_context *s, const char *filename)
+{
+   FILE *f = stbiw__fopen(filename, "wb");
+   stbi__start_write_callbacks(s, stbi__stdio_write, (void *) f);
+   return f != NULL;
+}
+
+static void stbi__end_write_file(stbi__write_context *s)
+{
+   fclose((FILE *)s->context);
+}
+
+#endif // !STBI_WRITE_NO_STDIO
+
+typedef unsigned int stbiw_uint32;
+typedef int stb_image_write_test[sizeof(stbiw_uint32)==4 ? 1 : -1];
+
+static void stbiw__writefv(stbi__write_context *s, const char *fmt, va_list v)
+{
+   while (*fmt) {
+      switch (*fmt++) {
+         case ' ': break;
+         case '1': { unsigned char x = STBIW_UCHAR(va_arg(v, int));
+                     s->func(s->context,&x,1);
+                     break; }
+         case '2': { int x = va_arg(v,int);
+                     unsigned char b[2];
+                     b[0] = STBIW_UCHAR(x);
+                     b[1] = STBIW_UCHAR(x>>8);
+                     s->func(s->context,b,2);
+                     break; }
+         case '4': { stbiw_uint32 x = va_arg(v,int);
+                     unsigned char b[4];
+                     b[0]=STBIW_UCHAR(x);
+                     b[1]=STBIW_UCHAR(x>>8);
+                     b[2]=STBIW_UCHAR(x>>16);
+                     b[3]=STBIW_UCHAR(x>>24);
+                     s->func(s->context,b,4);
+                     break; }
+         default:
+            STBIW_ASSERT(0);
+            return;
+      }
+   }
+}
+
+static void stbiw__writef(stbi__write_context *s, const char *fmt, ...)
+{
+   va_list v;
+   va_start(v, fmt);
+   stbiw__writefv(s, fmt, v);
+   va_end(v);
+}
+
+static void stbiw__write_flush(stbi__write_context *s)
+{
+   if (s->buf_used) {
+      s->func(s->context, &s->buffer, s->buf_used);
+      s->buf_used = 0;
+   }
+}
+
+static void stbiw__putc(stbi__write_context *s, unsigned char c)
+{
+   s->func(s->context, &c, 1);
+}
+
+static void stbiw__write1(stbi__write_context *s, unsigned char a)
+{
+   if ((size_t)s->buf_used + 1 > sizeof(s->buffer))
+      stbiw__write_flush(s);
+   s->buffer[s->buf_used++] = a;
+}
+
+static void stbiw__write3(stbi__write_context *s, unsigned char a, unsigned char b, unsigned char c)
+{
+   int n;
+   if ((size_t)s->buf_used + 3 > sizeof(s->buffer))
+      stbiw__write_flush(s);
+   n = s->buf_used;
+   s->buf_used = n+3;
+   s->buffer[n+0] = a;
+   s->buffer[n+1] = b;
+   s->buffer[n+2] = c;
+}
+
+static void stbiw__write_pixel(stbi__write_context *s, int rgb_dir, int comp, int write_alpha, int expand_mono, unsigned char *d)
+{
+   unsigned char bg[3] = { 255, 0, 255}, px[3];
+   int k;
+
+   if (write_alpha < 0)
+      stbiw__write1(s, d[comp - 1]);
+
+   switch (comp) {
+      case 2: // 2 pixels = mono + alpha, alpha is written separately, so same as 1-channel case
+      case 1:
+         if (expand_mono)
+            stbiw__write3(s, d[0], d[0], d[0]); // monochrome bmp
+         else
+            stbiw__write1(s, d[0]);  // monochrome TGA
+         break;
+      case 4:
+         if (!write_alpha) {
+            // composite against pink background
+            for (k = 0; k < 3; ++k)
+               px[k] = bg[k] + ((d[k] - bg[k]) * d[3]) / 255;
+            stbiw__write3(s, px[1 - rgb_dir], px[1], px[1 + rgb_dir]);
+            break;
+         }
+         /* FALLTHROUGH */
+      case 3:
+         stbiw__write3(s, d[1 - rgb_dir], d[1], d[1 + rgb_dir]);
+         break;
+   }
+   if (write_alpha > 0)
+      stbiw__write1(s, d[comp - 1]);
+}
+
+static void stbiw__write_pixels(stbi__write_context *s, int rgb_dir, int vdir, int x, int y, int comp, void *data, int write_alpha, int scanline_pad, int expand_mono)
+{
+   stbiw_uint32 zero = 0;
+   int i,j, j_end;
+
+   if (y <= 0)
+      return;
+
+   if (stbi__flip_vertically_on_write)
+      vdir *= -1;
+
+   if (vdir < 0) {
+      j_end = -1; j = y-1;
+   } else {
+      j_end =  y; j = 0;
+   }
+
+   for (; j != j_end; j += vdir) {
+      for (i=0; i < x; ++i) {
+         unsigned char *d = (unsigned char *) data + (j*x+i)*comp;
+         stbiw__write_pixel(s, rgb_dir, comp, write_alpha, expand_mono, d);
+      }
+      stbiw__write_flush(s);
+      s->func(s->context, &zero, scanline_pad);
+   }
+}
+
+static int stbiw__outfile(stbi__write_context *s, int rgb_dir, int vdir, int x, int y, int comp, int expand_mono, void *data, int alpha, int pad, const char *fmt, ...)
+{
+   if (y < 0 || x < 0) {
+      return 0;
+   } else {
+      va_list v;
+      va_start(v, fmt);
+      stbiw__writefv(s, fmt, v);
+      va_end(v);
+      stbiw__write_pixels(s,rgb_dir,vdir,x,y,comp,data,alpha,pad, expand_mono);
+      return 1;
+   }
+}
+
+static int stbi_write_bmp_core(stbi__write_context *s, int x, int y, int comp, const void *data)
+{
+   if (comp != 4) {
+      // write RGB bitmap
+      int pad = (-x*3) & 3;
+      return stbiw__outfile(s,-1,-1,x,y,comp,1,(void *) data,0,pad,
+              "11 4 22 4" "4 44 22 444444",
+              'B', 'M', 14+40+(x*3+pad)*y, 0,0, 14+40,  // file header
+               40, x,y, 1,24, 0,0,0,0,0,0);             // bitmap header
+   } else {
+      // RGBA bitmaps need a v4 header
+      // use BI_BITFIELDS mode with 32bpp and alpha mask
+      // (straight BI_RGB with alpha mask doesn't work in most readers)
+      return stbiw__outfile(s,-1,-1,x,y,comp,1,(void *)data,1,0,
+         "11 4 22 4" "4 44 22 444444 4444 4 444 444 444 444",
+         'B', 'M', 14+108+x*y*4, 0, 0, 14+108, // file header
+         108, x,y, 1,32, 3,0,0,0,0,0, 0xff0000,0xff00,0xff,0xff000000u, 0, 0,0,0, 0,0,0, 0,0,0, 0,0,0); // bitmap V4 header
+   }
+}
+
+STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
+{
+   stbi__write_context s = { 0 };
+   stbi__start_write_callbacks(&s, func, context);
+   return stbi_write_bmp_core(&s, x, y, comp, data);
+}
+
+#ifndef STBI_WRITE_NO_STDIO
+STBIWDEF int stbi_write_bmp(char const *filename, int x, int y, int comp, const void *data)
+{
+   stbi__write_context s = { 0 };
+   if (stbi__start_write_file(&s,filename)) {
+      int r = stbi_write_bmp_core(&s, x, y, comp, data);
+      stbi__end_write_file(&s);
+      return r;
+   } else
+      return 0;
+}
+#endif //!STBI_WRITE_NO_STDIO
+
+static int stbi_write_tga_core(stbi__write_context *s, int x, int y, int comp, void *data)
+{
+   int has_alpha = (comp == 2 || comp == 4);
+   int colorbytes = has_alpha ? comp-1 : comp;
+   int format = colorbytes < 2 ? 3 : 2; // 3 color channels (RGB/RGBA) = 2, 1 color channel (Y/YA) = 3
+
+   if (y < 0 || x < 0)
+      return 0;
+
+   if (!stbi_write_tga_with_rle) {
+      return stbiw__outfile(s, -1, -1, x, y, comp, 0, (void *) data, has_alpha, 0,
+         "111 221 2222 11", 0, 0, format, 0, 0, 0, 0, 0, x, y, (colorbytes + has_alpha) * 8, has_alpha * 8);
+   } else {
+      int i,j,k;
+      int jend, jdir;
+
+      stbiw__writef(s, "111 221 2222 11", 0,0,format+8, 0,0,0, 0,0,x,y, (colorbytes + has_alpha) * 8, has_alpha * 8);
+
+      if (stbi__flip_vertically_on_write) {
+         j = 0;
+         jend = y;
+         jdir = 1;
+      } else {
+         j = y-1;
+         jend = -1;
+         jdir = -1;
+      }
+      for (; j != jend; j += jdir) {
+         unsigned char *row = (unsigned char *) data + j * x * comp;
+         int len;
+
+         for (i = 0; i < x; i += len) {
+            unsigned char *begin = row + i * comp;
+            int diff = 1;
+            len = 1;
+
+            if (i < x - 1) {
+               ++len;
+               diff = memcmp(begin, row + (i + 1) * comp, comp);
+               if (diff) {
+                  const unsigned char *prev = begin;
+                  for (k = i + 2; k < x && len < 128; ++k) {
+                     if (memcmp(prev, row + k * comp, comp)) {
+                        prev += comp;
+                        ++len;
+                     } else {
+                        --len;
+                        break;
+                     }
+                  }
+               } else {
+                  for (k = i + 2; k < x && len < 128; ++k) {
+                     if (!memcmp(begin, row + k * comp, comp)) {
+                        ++len;
+                     } else {
+                        break;
+                     }
+                  }
+               }
+            }
+
+            if (diff) {
+               unsigned char header = STBIW_UCHAR(len - 1);
+               stbiw__write1(s, header);
+               for (k = 0; k < len; ++k) {
+                  stbiw__write_pixel(s, -1, comp, has_alpha, 0, begin + k * comp);
+               }
+            } else {
+               unsigned char header = STBIW_UCHAR(len - 129);
+               stbiw__write1(s, header);
+               stbiw__write_pixel(s, -1, comp, has_alpha, 0, begin);
+            }
+         }
+      }
+      stbiw__write_flush(s);
+   }
+   return 1;
+}
+
+STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
+{
+   stbi__write_context s = { 0 };
+   stbi__start_write_callbacks(&s, func, context);
+   return stbi_write_tga_core(&s, x, y, comp, (void *) data);
+}
+
+#ifndef STBI_WRITE_NO_STDIO
+STBIWDEF int stbi_write_tga(char const *filename, int x, int y, int comp, const void *data)
+{
+   stbi__write_context s = { 0 };
+   if (stbi__start_write_file(&s,filename)) {
+      int r = stbi_write_tga_core(&s, x, y, comp, (void *) data);
+      stbi__end_write_file(&s);
+      return r;
+   } else
+      return 0;
+}
+#endif
+
+// *************************************************************************************************
+// Radiance RGBE HDR writer
+// by Baldur Karlsson
+
+#define stbiw__max(a, b)  ((a) > (b) ? (a) : (b))
+
+#ifndef STBI_WRITE_NO_STDIO
+
+static void stbiw__linear_to_rgbe(unsigned char *rgbe, float *linear)
+{
+   int exponent;
+   float maxcomp = stbiw__max(linear[0], stbiw__max(linear[1], linear[2]));
+
+   if (maxcomp < 1e-32f) {
+      rgbe[0] = rgbe[1] = rgbe[2] = rgbe[3] = 0;
+   } else {
+      float normalize = (float) frexp(maxcomp, &exponent) * 256.0f/maxcomp;
+
+      rgbe[0] = (unsigned char)(linear[0] * normalize);
+      rgbe[1] = (unsigned char)(linear[1] * normalize);
+      rgbe[2] = (unsigned char)(linear[2] * normalize);
+      rgbe[3] = (unsigned char)(exponent + 128);
+   }
+}
+
+static void stbiw__write_run_data(stbi__write_context *s, int length, unsigned char databyte)
+{
+   unsigned char lengthbyte = STBIW_UCHAR(length+128);
+   STBIW_ASSERT(length+128 <= 255);
+   s->func(s->context, &lengthbyte, 1);
+   s->func(s->context, &databyte, 1);
+}
+
+static void stbiw__write_dump_data(stbi__write_context *s, int length, unsigned char *data)
+{
+   unsigned char lengthbyte = STBIW_UCHAR(length);
+   STBIW_ASSERT(length <= 128); // inconsistent with spec but consistent with official code
+   s->func(s->context, &lengthbyte, 1);
+   s->func(s->context, data, length);
+}
+
+static void stbiw__write_hdr_scanline(stbi__write_context *s, int width, int ncomp, unsigned char *scratch, float *scanline)
+{
+   unsigned char scanlineheader[4] = { 2, 2, 0, 0 };
+   unsigned char rgbe[4];
+   float linear[3];
+   int x;
+
+   scanlineheader[2] = (width&0xff00)>>8;
+   scanlineheader[3] = (width&0x00ff);
+
+   /* skip RLE for images too small or large */
+   if (width < 8 || width >= 32768) {
+      for (x=0; x < width; x++) {
+         switch (ncomp) {
+            case 4: /* fallthrough */
+            case 3: linear[2] = scanline[x*ncomp + 2];
+                    linear[1] = scanline[x*ncomp + 1];
+                    linear[0] = scanline[x*ncomp + 0];
+                    break;
+            default:
+                    linear[0] = linear[1] = linear[2] = scanline[x*ncomp + 0];
+                    break;
+         }
+         stbiw__linear_to_rgbe(rgbe, linear);
+         s->func(s->context, rgbe, 4);
+      }
+   } else {
+      int c,r;
+      /* encode into scratch buffer */
+      for (x=0; x < width; x++) {
+         switch(ncomp) {
+            case 4: /* fallthrough */
+            case 3: linear[2] = scanline[x*ncomp + 2];
+                    linear[1] = scanline[x*ncomp + 1];
+                    linear[0] = scanline[x*ncomp + 0];
+                    break;
+            default:
+                    linear[0] = linear[1] = linear[2] = scanline[x*ncomp + 0];
+                    break;
+         }
+         stbiw__linear_to_rgbe(rgbe, linear);
+         scratch[x + width*0] = rgbe[0];
+         scratch[x + width*1] = rgbe[1];
+         scratch[x + width*2] = rgbe[2];
+         scratch[x + width*3] = rgbe[3];
+      }
+
+      s->func(s->context, scanlineheader, 4);
+
+      /* RLE each component separately */
+      for (c=0; c < 4; c++) {
+         unsigned char *comp = &scratch[width*c];
+
+         x = 0;
+         while (x < width) {
+            // find first run
+            r = x;
+            while (r+2 < width) {
+               if (comp[r] == comp[r+1] && comp[r] == comp[r+2])
+                  break;
+               ++r;
+            }
+            if (r+2 >= width)
+               r = width;
+            // dump up to first run
+            while (x < r) {
+               int len = r-x;
+               if (len > 128) len = 128;
+               stbiw__write_dump_data(s, len, &comp[x]);
+               x += len;
+            }
+            // if there's a run, output it
+            if (r+2 < width) { // same test as what we break out of in search loop, so only true if we break'd
+               // find next byte after run
+               while (r < width && comp[r] == comp[x])
+                  ++r;
+               // output run up to r
+               while (x < r) {
+                  int len = r-x;
+                  if (len > 127) len = 127;
+                  stbiw__write_run_data(s, len, comp[x]);
+                  x += len;
+               }
+            }
+         }
+      }
+   }
+}
+
+static int stbi_write_hdr_core(stbi__write_context *s, int x, int y, int comp, float *data)
+{
+   if (y <= 0 || x <= 0 || data == NULL)
+      return 0;
+   else {
+      // Each component is stored separately. Allocate scratch space for full output scanline.
+      unsigned char *scratch = (unsigned char *) STBIW_MALLOC(x*4);
+      int i, len;
+      char buffer[128];
+      char header[] = "#?RADIANCE\n# Written by stb_image_write.h\nFORMAT=32-bit_rle_rgbe\n";
+      s->func(s->context, header, sizeof(header)-1);
+
+#ifdef __STDC_LIB_EXT1__
+      len = sprintf_s(buffer, sizeof(buffer), "EXPOSURE=          1.0000000000000\n\n-Y %d +X %d\n", y, x);
+#else
+      len = sprintf(buffer, "EXPOSURE=          1.0000000000000\n\n-Y %d +X %d\n", y, x);
+#endif
+      s->func(s->context, buffer, len);
+
+      for(i=0; i < y; i++)
+         stbiw__write_hdr_scanline(s, x, comp, scratch, data + comp*x*(stbi__flip_vertically_on_write ? y-1-i : i));
+      STBIW_FREE(scratch);
+      return 1;
+   }
+}
+
+STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
+{
+   stbi__write_context s = { 0 };
+   stbi__start_write_callbacks(&s, func, context);
+   return stbi_write_hdr_core(&s, x, y, comp, (float *) data);
+}
+
+STBIWDEF int stbi_write_hdr(char const *filename, int x, int y, int comp, const float *data)
+{
+   stbi__write_context s = { 0 };
+   if (stbi__start_write_file(&s,filename)) {
+      int r = stbi_write_hdr_core(&s, x, y, comp, (float *) data);
+      stbi__end_write_file(&s);
+      return r;
+   } else
+      return 0;
+}
+#endif // STBI_WRITE_NO_STDIO
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// PNG writer
+//
+
+#ifndef STBIW_ZLIB_COMPRESS
+// stretchy buffer; stbiw__sbpush() == vector<>::push_back() -- stbiw__sbcount() == vector<>::size()
+#define stbiw__sbraw(a) ((int *) (void *) (a) - 2)
+#define stbiw__sbm(a)   stbiw__sbraw(a)[0]
+#define stbiw__sbn(a)   stbiw__sbraw(a)[1]
+
+#define stbiw__sbneedgrow(a,n)  ((a)==0 || stbiw__sbn(a)+n >= stbiw__sbm(a))
+#define stbiw__sbmaybegrow(a,n) (stbiw__sbneedgrow(a,(n)) ? stbiw__sbgrow(a,n) : 0)
+#define stbiw__sbgrow(a,n)  stbiw__sbgrowf((void **) &(a), (n), sizeof(*(a)))
+
+#define stbiw__sbpush(a, v)      (stbiw__sbmaybegrow(a,1), (a)[stbiw__sbn(a)++] = (v))
+#define stbiw__sbcount(a)        ((a) ? stbiw__sbn(a) : 0)
+#define stbiw__sbfree(a)         ((a) ? STBIW_FREE(stbiw__sbraw(a)),0 : 0)
+
+static void *stbiw__sbgrowf(void **arr, int increment, int itemsize)
+{
+   int m = *arr ? 2*stbiw__sbm(*arr)+increment : increment+1;
+   void *p = STBIW_REALLOC_SIZED(*arr ? stbiw__sbraw(*arr) : 0, *arr ? (stbiw__sbm(*arr)*itemsize + sizeof(int)*2) : 0, itemsize * m + sizeof(int)*2);
+   STBIW_ASSERT(p);
+   if (p) {
+      if (!*arr) ((int *) p)[1] = 0;
+      *arr = (void *) ((int *) p + 2);
+      stbiw__sbm(*arr) = m;
+   }
+   return *arr;
+}
+
+static unsigned char *stbiw__zlib_flushf(unsigned char *data, unsigned int *bitbuffer, int *bitcount)
+{
+   while (*bitcount >= 8) {
+      stbiw__sbpush(data, STBIW_UCHAR(*bitbuffer));
+      *bitbuffer >>= 8;
+      *bitcount -= 8;
+   }
+   return data;
+}
+
+static int stbiw__zlib_bitrev(int code, int codebits)
+{
+   int res=0;
+   while (codebits--) {
+      res = (res << 1) | (code & 1);
+      code >>= 1;
+   }
+   return res;
+}
+
+static unsigned int stbiw__zlib_countm(unsigned char *a, unsigned char *b, int limit)
+{
+   int i;
+   for (i=0; i < limit && i < 258; ++i)
+      if (a[i] != b[i]) break;
+   return i;
+}
+
+static unsigned int stbiw__zhash(unsigned char *data)
+{
+   stbiw_uint32 hash = data[0] + (data[1] << 8) + (data[2] << 16);
+   hash ^= hash << 3;
+   hash += hash >> 5;
+   hash ^= hash << 4;
+   hash += hash >> 17;
+   hash ^= hash << 25;
+   hash += hash >> 6;
+   return hash;
+}
+
+#define stbiw__zlib_flush() (out = stbiw__zlib_flushf(out, &bitbuf, &bitcount))
+#define stbiw__zlib_add(code,codebits) \
+      (bitbuf |= (code) << bitcount, bitcount += (codebits), stbiw__zlib_flush())
+#define stbiw__zlib_huffa(b,c)  stbiw__zlib_add(stbiw__zlib_bitrev(b,c),c)
+// default huffman tables
+#define stbiw__zlib_huff1(n)  stbiw__zlib_huffa(0x30 + (n), 8)
+#define stbiw__zlib_huff2(n)  stbiw__zlib_huffa(0x190 + (n)-144, 9)
+#define stbiw__zlib_huff3(n)  stbiw__zlib_huffa(0 + (n)-256,7)
+#define stbiw__zlib_huff4(n)  stbiw__zlib_huffa(0xc0 + (n)-280,8)
+#define stbiw__zlib_huff(n)  ((n) <= 143 ? stbiw__zlib_huff1(n) : (n) <= 255 ? stbiw__zlib_huff2(n) : (n) <= 279 ? stbiw__zlib_huff3(n) : stbiw__zlib_huff4(n))
+#define stbiw__zlib_huffb(n) ((n) <= 143 ? stbiw__zlib_huff1(n) : stbiw__zlib_huff2(n))
+
+#define stbiw__ZHASH   16384
+
+#endif // STBIW_ZLIB_COMPRESS
+
+STBIWDEF unsigned char * stbi_zlib_compress(unsigned char *data, int data_len, int *out_len, int quality)
+{
+#ifdef STBIW_ZLIB_COMPRESS
+   // user provided a zlib compress implementation, use that
+   return STBIW_ZLIB_COMPRESS(data, data_len, out_len, quality);
+#else // use builtin
+   static unsigned short lengthc[] = { 3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258, 259 };
+   static unsigned char  lengtheb[]= { 0,0,0,0,0,0,0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4,  4,  5,  5,  5,  5,  0 };
+   static unsigned short distc[]   = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577, 32768 };
+   static unsigned char  disteb[]  = { 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13 };
+   unsigned int bitbuf=0;
+   int i,j, bitcount=0;
+   unsigned char *out = NULL;
+   unsigned char ***hash_table = (unsigned char***) STBIW_MALLOC(stbiw__ZHASH * sizeof(unsigned char**));
+   if (hash_table == NULL)
+      return NULL;
+   if (quality < 5) quality = 5;
+
+   stbiw__sbpush(out, 0x78);   // DEFLATE 32K window
+   stbiw__sbpush(out, 0x5e);   // FLEVEL = 1
+   stbiw__zlib_add(1,1);  // BFINAL = 1
+   stbiw__zlib_add(1,2);  // BTYPE = 1 -- fixed huffman
+
+   for (i=0; i < stbiw__ZHASH; ++i)
+      hash_table[i] = NULL;
+
+   i=0;
+   while (i < data_len-3) {
+      // hash next 3 bytes of data to be compressed
+      int h = stbiw__zhash(data+i)&(stbiw__ZHASH-1), best=3;
+      unsigned char *bestloc = 0;
+      unsigned char **hlist = hash_table[h];
+      int n = stbiw__sbcount(hlist);
+      for (j=0; j < n; ++j) {
+         if (hlist[j]-data > i-32768) { // if entry lies within window
+            int d = stbiw__zlib_countm(hlist[j], data+i, data_len-i);
+            if (d >= best) { best=d; bestloc=hlist[j]; }
+         }
+      }
+      // when hash table entry is too long, delete half the entries
+      if (hash_table[h] && stbiw__sbn(hash_table[h]) == 2*quality) {
+         STBIW_MEMMOVE(hash_table[h], hash_table[h]+quality, sizeof(hash_table[h][0])*quality);
+         stbiw__sbn(hash_table[h]) = quality;
+      }
+      stbiw__sbpush(hash_table[h],data+i);
+
+      if (bestloc) {
+         // "lazy matching" - check match at *next* byte, and if it's better, do cur byte as literal
+         h = stbiw__zhash(data+i+1)&(stbiw__ZHASH-1);
+         hlist = hash_table[h];
+         n = stbiw__sbcount(hlist);
+         for (j=0; j < n; ++j) {
+            if (hlist[j]-data > i-32767) {
+               int e = stbiw__zlib_countm(hlist[j], data+i+1, data_len-i-1);
+               if (e > best) { // if next match is better, bail on current match
+                  bestloc = NULL;
+                  break;
+               }
+            }
+         }
+      }
+
+      if (bestloc) {
+         int d = (int) (data+i - bestloc); // distance back
+         STBIW_ASSERT(d <= 32767 && best <= 258);
+         for (j=0; best > lengthc[j+1]-1; ++j);
+         stbiw__zlib_huff(j+257);
+         if (lengtheb[j]) stbiw__zlib_add(best - lengthc[j], lengtheb[j]);
+         for (j=0; d > distc[j+1]-1; ++j);
+         stbiw__zlib_add(stbiw__zlib_bitrev(j,5),5);
+         if (disteb[j]) stbiw__zlib_add(d - distc[j], disteb[j]);
+         i += best;
+      } else {
+         stbiw__zlib_huffb(data[i]);
+         ++i;
+      }
+   }
+   // write out final bytes
+   for (;i < data_len; ++i)
+      stbiw__zlib_huffb(data[i]);
+   stbiw__zlib_huff(256); // end of block
+   // pad with 0 bits to byte boundary
+   while (bitcount)
+      stbiw__zlib_add(0,1);
+
+   for (i=0; i < stbiw__ZHASH; ++i)
+      (void) stbiw__sbfree(hash_table[i]);
+   STBIW_FREE(hash_table);
+
+   // store uncompressed instead if compression was worse
+   if (stbiw__sbn(out) > data_len + 2 + ((data_len+32766)/32767)*5) {
+      stbiw__sbn(out) = 2;  // truncate to DEFLATE 32K window and FLEVEL = 1
+      for (j = 0; j < data_len;) {
+         int blocklen = data_len - j;
+         if (blocklen > 32767) blocklen = 32767;
+         stbiw__sbpush(out, data_len - j == blocklen); // BFINAL = ?, BTYPE = 0 -- no compression
+         stbiw__sbpush(out, STBIW_UCHAR(blocklen)); // LEN
+         stbiw__sbpush(out, STBIW_UCHAR(blocklen >> 8));
+         stbiw__sbpush(out, STBIW_UCHAR(~blocklen)); // NLEN
+         stbiw__sbpush(out, STBIW_UCHAR(~blocklen >> 8));
+         memcpy(out+stbiw__sbn(out), data+j, blocklen);
+         stbiw__sbn(out) += blocklen;
+         j += blocklen;
+      }
+   }
+
+   {
+      // compute adler32 on input
+      unsigned int s1=1, s2=0;
+      int blocklen = (int) (data_len % 5552);
+      j=0;
+      while (j < data_len) {
+         for (i=0; i < blocklen; ++i) { s1 += data[j+i]; s2 += s1; }
+         s1 %= 65521; s2 %= 65521;
+         j += blocklen;
+         blocklen = 5552;
+      }
+      stbiw__sbpush(out, STBIW_UCHAR(s2 >> 8));
+      stbiw__sbpush(out, STBIW_UCHAR(s2));
+      stbiw__sbpush(out, STBIW_UCHAR(s1 >> 8));
+      stbiw__sbpush(out, STBIW_UCHAR(s1));
+   }
+   *out_len = stbiw__sbn(out);
+   // make returned pointer freeable
+   STBIW_MEMMOVE(stbiw__sbraw(out), out, *out_len);
+   return (unsigned char *) stbiw__sbraw(out);
+#endif // STBIW_ZLIB_COMPRESS
+}
+
+static unsigned int stbiw__crc32(unsigned char *buffer, int len)
+{
+#ifdef STBIW_CRC32
+    return STBIW_CRC32(buffer, len);
+#else
+   static unsigned int crc_table[256] =
+   {
+      0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
+      0x0eDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
+      0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
+      0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
+      0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
+      0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
+      0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
+      0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
+      0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
+      0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
+      0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
+      0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
+      0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
+      0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
+      0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+      0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
+      0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
+      0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
+      0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
+      0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
+      0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
+      0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
+      0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
+      0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
+      0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
+      0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
+      0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
+      0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
+      0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
+      0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+      0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
+      0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
+   };
+
+   unsigned int crc = ~0u;
+   int i;
+   for (i=0; i < len; ++i)
+      crc = (crc >> 8) ^ crc_table[buffer[i] ^ (crc & 0xff)];
+   return ~crc;
+#endif
+}
+
+#define stbiw__wpng4(o,a,b,c,d) ((o)[0]=STBIW_UCHAR(a),(o)[1]=STBIW_UCHAR(b),(o)[2]=STBIW_UCHAR(c),(o)[3]=STBIW_UCHAR(d),(o)+=4)
+#define stbiw__wp32(data,v) stbiw__wpng4(data, (v)>>24,(v)>>16,(v)>>8,(v));
+#define stbiw__wptag(data,s) stbiw__wpng4(data, s[0],s[1],s[2],s[3])
+
+static void stbiw__wpcrc(unsigned char **data, int len)
+{
+   unsigned int crc = stbiw__crc32(*data - len - 4, len+4);
+   stbiw__wp32(*data, crc);
+}
+
+static unsigned char stbiw__paeth(int a, int b, int c)
+{
+   int p = a + b - c, pa = abs(p-a), pb = abs(p-b), pc = abs(p-c);
+   if (pa <= pb && pa <= pc) return STBIW_UCHAR(a);
+   if (pb <= pc) return STBIW_UCHAR(b);
+   return STBIW_UCHAR(c);
+}
+
+// @OPTIMIZE: provide an option that always forces left-predict or paeth predict
+static void stbiw__encode_png_line(unsigned char *pixels, int stride_bytes, int width, int height, int y, int n, int filter_type, signed char *line_buffer)
+{
+   static int mapping[] = { 0,1,2,3,4 };
+   static int firstmap[] = { 0,1,0,5,6 };
+   int *mymap = (y != 0) ? mapping : firstmap;
+   int i;
+   int type = mymap[filter_type];
+   unsigned char *z = pixels + stride_bytes * (stbi__flip_vertically_on_write ? height-1-y : y);
+   int signed_stride = stbi__flip_vertically_on_write ? -stride_bytes : stride_bytes;
+
+   if (type==0) {
+      memcpy(line_buffer, z, width*n);
+      return;
+   }
+
+   // first loop isn't optimized since it's just one pixel
+   for (i = 0; i < n; ++i) {
+      switch (type) {
+         case 1: line_buffer[i] = z[i]; break;
+         case 2: line_buffer[i] = z[i] - z[i-signed_stride]; break;
+         case 3: line_buffer[i] = z[i] - (z[i-signed_stride]>>1); break;
+         case 4: line_buffer[i] = (signed char) (z[i] - stbiw__paeth(0,z[i-signed_stride],0)); break;
+         case 5: line_buffer[i] = z[i]; break;
+         case 6: line_buffer[i] = z[i]; break;
+      }
+   }
+   switch (type) {
+      case 1: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - z[i-n]; break;
+      case 2: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - z[i-signed_stride]; break;
+      case 3: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - ((z[i-n] + z[i-signed_stride])>>1); break;
+      case 4: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - stbiw__paeth(z[i-n], z[i-signed_stride], z[i-signed_stride-n]); break;
+      case 5: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - (z[i-n]>>1); break;
+      case 6: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - stbiw__paeth(z[i-n], 0,0); break;
+   }
+}
+
+STBIWDEF unsigned char *stbi_write_png_to_mem(const unsigned char *pixels, int stride_bytes, int x, int y, int n, int *out_len)
+{
+   int force_filter = stbi_write_force_png_filter;
+   int ctype[5] = { -1, 0, 4, 2, 6 };
+   unsigned char sig[8] = { 137,80,78,71,13,10,26,10 };
+   unsigned char *out,*o, *filt, *zlib;
+   signed char *line_buffer;
+   int j,zlen;
+
+   if (stride_bytes == 0)
+      stride_bytes = x * n;
+
+   if (force_filter >= 5) {
+      force_filter = -1;
+   }
+
+   filt = (unsigned char *) STBIW_MALLOC((x*n+1) * y); if (!filt) return 0;
+   line_buffer = (signed char *) STBIW_MALLOC(x * n); if (!line_buffer) { STBIW_FREE(filt); return 0; }
+   for (j=0; j < y; ++j) {
+      int filter_type;
+      if (force_filter > -1) {
+         filter_type = force_filter;
+         stbiw__encode_png_line((unsigned char*)(pixels), stride_bytes, x, y, j, n, force_filter, line_buffer);
+      } else { // Estimate the best filter by running through all of them:
+         int best_filter = 0, best_filter_val = 0x7fffffff, est, i;
+         for (filter_type = 0; filter_type < 5; filter_type++) {
+            stbiw__encode_png_line((unsigned char*)(pixels), stride_bytes, x, y, j, n, filter_type, line_buffer);
+
+            // Estimate the entropy of the line using this filter; the less, the better.
+            est = 0;
+            for (i = 0; i < x*n; ++i) {
+               est += abs((signed char) line_buffer[i]);
+            }
+            if (est < best_filter_val) {
+               best_filter_val = est;
+               best_filter = filter_type;
+            }
+         }
+         if (filter_type != best_filter) {  // If the last iteration already got us the best filter, don't redo it
+            stbiw__encode_png_line((unsigned char*)(pixels), stride_bytes, x, y, j, n, best_filter, line_buffer);
+            filter_type = best_filter;
+         }
+      }
+      // when we get here, filter_type contains the filter type, and line_buffer contains the data
+      filt[j*(x*n+1)] = (unsigned char) filter_type;
+      STBIW_MEMMOVE(filt+j*(x*n+1)+1, line_buffer, x*n);
+   }
+   STBIW_FREE(line_buffer);
+   zlib = stbi_zlib_compress(filt, y*( x*n+1), &zlen, stbi_write_png_compression_level);
+   STBIW_FREE(filt);
+   if (!zlib) return 0;
+
+   // each tag requires 12 bytes of overhead
+   out = (unsigned char *) STBIW_MALLOC(8 + 12+13 + 12+zlen + 12);
+   if (!out) return 0;
+   *out_len = 8 + 12+13 + 12+zlen + 12;
+
+   o=out;
+   STBIW_MEMMOVE(o,sig,8); o+= 8;
+   stbiw__wp32(o, 13); // header length
+   stbiw__wptag(o, "IHDR");
+   stbiw__wp32(o, x);
+   stbiw__wp32(o, y);
+   *o++ = 8;
+   *o++ = STBIW_UCHAR(ctype[n]);
+   *o++ = 0;
+   *o++ = 0;
+   *o++ = 0;
+   stbiw__wpcrc(&o,13);
+
+   stbiw__wp32(o, zlen);
+   stbiw__wptag(o, "IDAT");
+   STBIW_MEMMOVE(o, zlib, zlen);
+   o += zlen;
+   STBIW_FREE(zlib);
+   stbiw__wpcrc(&o, zlen);
+
+   stbiw__wp32(o,0);
+   stbiw__wptag(o, "IEND");
+   stbiw__wpcrc(&o,0);
+
+   STBIW_ASSERT(o == out + *out_len);
+
+   return out;
+}
+
+#ifndef STBI_WRITE_NO_STDIO
+STBIWDEF int stbi_write_png(char const *filename, int x, int y, int comp, const void *data, int stride_bytes)
+{
+   FILE *f;
+   int len;
+   unsigned char *png = stbi_write_png_to_mem((const unsigned char *) data, stride_bytes, x, y, comp, &len);
+   if (png == NULL) return 0;
+
+   f = stbiw__fopen(filename, "wb");
+   if (!f) { STBIW_FREE(png); return 0; }
+   fwrite(png, 1, len, f);
+   fclose(f);
+   STBIW_FREE(png);
+   return 1;
+}
+#endif
+
+STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
+{
+   int len;
+   unsigned char *png = stbi_write_png_to_mem((const unsigned char *) data, stride_bytes, x, y, comp, &len);
+   if (png == NULL) return 0;
+   func(context, png, len);
+   STBIW_FREE(png);
+   return 1;
+}
+
+
+/* ***************************************************************************
+ *
+ * JPEG writer
+ *
+ * This is based on Jon Olick's jo_jpeg.cpp:
+ * public domain Simple, Minimalistic JPEG writer - http://www.jonolick.com/code.html
+ */
+
+static const unsigned char stbiw__jpg_ZigZag[] = { 0,1,5,6,14,15,27,28,2,4,7,13,16,26,29,42,3,8,12,17,25,30,41,43,9,11,18,
+      24,31,40,44,53,10,19,23,32,39,45,52,54,20,22,33,38,46,51,55,60,21,34,37,47,50,56,59,61,35,36,48,49,57,58,62,63 };
+
+static void stbiw__jpg_writeBits(stbi__write_context *s, int *bitBufP, int *bitCntP, const unsigned short *bs) {
+   int bitBuf = *bitBufP, bitCnt = *bitCntP;
+   bitCnt += bs[1];
+   bitBuf |= bs[0] << (24 - bitCnt);
+   while(bitCnt >= 8) {
+      unsigned char c = (bitBuf >> 16) & 255;
+      stbiw__putc(s, c);
+      if(c == 255) {
+         stbiw__putc(s, 0);
+      }
+      bitBuf <<= 8;
+      bitCnt -= 8;
+   }
+   *bitBufP = bitBuf;
+   *bitCntP = bitCnt;
+}
+
+static void stbiw__jpg_DCT(float *d0p, float *d1p, float *d2p, float *d3p, float *d4p, float *d5p, float *d6p, float *d7p) {
+   float d0 = *d0p, d1 = *d1p, d2 = *d2p, d3 = *d3p, d4 = *d4p, d5 = *d5p, d6 = *d6p, d7 = *d7p;
+   float z1, z2, z3, z4, z5, z11, z13;
+
+   float tmp0 = d0 + d7;
+   float tmp7 = d0 - d7;
+   float tmp1 = d1 + d6;
+   float tmp6 = d1 - d6;
+   float tmp2 = d2 + d5;
+   float tmp5 = d2 - d5;
+   float tmp3 = d3 + d4;
+   float tmp4 = d3 - d4;
+
+   // Even part
+   float tmp10 = tmp0 + tmp3;   // phase 2
+   float tmp13 = tmp0 - tmp3;
+   float tmp11 = tmp1 + tmp2;
+   float tmp12 = tmp1 - tmp2;
+
+   d0 = tmp10 + tmp11;       // phase 3
+   d4 = tmp10 - tmp11;
+
+   z1 = (tmp12 + tmp13) * 0.707106781f; // c4
+   d2 = tmp13 + z1;       // phase 5
+   d6 = tmp13 - z1;
+
+   // Odd part
+   tmp10 = tmp4 + tmp5;       // phase 2
+   tmp11 = tmp5 + tmp6;
+   tmp12 = tmp6 + tmp7;
+
+   // The rotator is modified from fig 4-8 to avoid extra negations.
+   z5 = (tmp10 - tmp12) * 0.382683433f; // c6
+   z2 = tmp10 * 0.541196100f + z5; // c2-c6
+   z4 = tmp12 * 1.306562965f + z5; // c2+c6
+   z3 = tmp11 * 0.707106781f; // c4
+
+   z11 = tmp7 + z3;      // phase 5
+   z13 = tmp7 - z3;
+
+   *d5p = z13 + z2;         // phase 6
+   *d3p = z13 - z2;
+   *d1p = z11 + z4;
+   *d7p = z11 - z4;
+
+   *d0p = d0;  *d2p = d2;  *d4p = d4;  *d6p = d6;
+}
+
+static void stbiw__jpg_calcBits(int val, unsigned short bits[2]) {
+   int tmp1 = val < 0 ? -val : val;
+   val = val < 0 ? val-1 : val;
+   bits[1] = 1;
+   while(tmp1 >>= 1) {
+      ++bits[1];
+   }
+   bits[0] = val & ((1<<bits[1])-1);
+}
+
+static int stbiw__jpg_processDU(stbi__write_context *s, int *bitBuf, int *bitCnt, float *CDU, int du_stride, float *fdtbl, int DC, const unsigned short HTDC[256][2], const unsigned short HTAC[256][2]) {
+   const unsigned short EOB[2] = { HTAC[0x00][0], HTAC[0x00][1] };
+   const unsigned short M16zeroes[2] = { HTAC[0xF0][0], HTAC[0xF0][1] };
+   int dataOff, i, j, n, diff, end0pos, x, y;
+   int DU[64];
+
+   // DCT rows
+   for(dataOff=0, n=du_stride*8; dataOff<n; dataOff+=du_stride) {
+      stbiw__jpg_DCT(&CDU[dataOff], &CDU[dataOff+1], &CDU[dataOff+2], &CDU[dataOff+3], &CDU[dataOff+4], &CDU[dataOff+5], &CDU[dataOff+6], &CDU[dataOff+7]);
+   }
+   // DCT columns
+   for(dataOff=0; dataOff<8; ++dataOff) {
+      stbiw__jpg_DCT(&CDU[dataOff], &CDU[dataOff+du_stride], &CDU[dataOff+du_stride*2], &CDU[dataOff+du_stride*3], &CDU[dataOff+du_stride*4],
+                     &CDU[dataOff+du_stride*5], &CDU[dataOff+du_stride*6], &CDU[dataOff+du_stride*7]);
+   }
+   // Quantize/descale/zigzag the coefficients
+   for(y = 0, j=0; y < 8; ++y) {
+      for(x = 0; x < 8; ++x,++j) {
+         float v;
+         i = y*du_stride+x;
+         v = CDU[i]*fdtbl[j];
+         // DU[stbiw__jpg_ZigZag[j]] = (int)(v < 0 ? ceilf(v - 0.5f) : floorf(v + 0.5f));
+         // ceilf() and floorf() are C99, not C89, but I /think/ they're not needed here anyway?
+         DU[stbiw__jpg_ZigZag[j]] = (int)(v < 0 ? v - 0.5f : v + 0.5f);
+      }
+   }
+
+   // Encode DC
+   diff = DU[0] - DC;
+   if (diff == 0) {
+      stbiw__jpg_writeBits(s, bitBuf, bitCnt, HTDC[0]);
+   } else {
+      unsigned short bits[2];
+      stbiw__jpg_calcBits(diff, bits);
+      stbiw__jpg_writeBits(s, bitBuf, bitCnt, HTDC[bits[1]]);
+      stbiw__jpg_writeBits(s, bitBuf, bitCnt, bits);
+   }
+   // Encode ACs
+   end0pos = 63;
+   for(; (end0pos>0)&&(DU[end0pos]==0); --end0pos) {
+   }
+   // end0pos = first element in reverse order !=0
+   if(end0pos == 0) {
+      stbiw__jpg_writeBits(s, bitBuf, bitCnt, EOB);
+      return DU[0];
+   }
+   for(i = 1; i <= end0pos; ++i) {
+      int startpos = i;
+      int nrzeroes;
+      unsigned short bits[2];
+      for (; DU[i]==0 && i<=end0pos; ++i) {
+      }
+      nrzeroes = i-startpos;
+      if ( nrzeroes >= 16 ) {
+         int lng = nrzeroes>>4;
+         int nrmarker;
+         for (nrmarker=1; nrmarker <= lng; ++nrmarker)
+            stbiw__jpg_writeBits(s, bitBuf, bitCnt, M16zeroes);
+         nrzeroes &= 15;
+      }
+      stbiw__jpg_calcBits(DU[i], bits);
+      stbiw__jpg_writeBits(s, bitBuf, bitCnt, HTAC[(nrzeroes<<4)+bits[1]]);
+      stbiw__jpg_writeBits(s, bitBuf, bitCnt, bits);
+   }
+   if(end0pos != 63) {
+      stbiw__jpg_writeBits(s, bitBuf, bitCnt, EOB);
+   }
+   return DU[0];
+}
+
+static int stbi_write_jpg_core(stbi__write_context *s, int width, int height, int comp, const void* data, int quality) {
+   // Constants that don't pollute global namespace
+   static const unsigned char std_dc_luminance_nrcodes[] = {0,0,1,5,1,1,1,1,1,1,0,0,0,0,0,0,0};
+   static const unsigned char std_dc_luminance_values[] = {0,1,2,3,4,5,6,7,8,9,10,11};
+   static const unsigned char std_ac_luminance_nrcodes[] = {0,0,2,1,3,3,2,4,3,5,5,4,4,0,0,1,0x7d};
+   static const unsigned char std_ac_luminance_values[] = {
+      0x01,0x02,0x03,0x00,0x04,0x11,0x05,0x12,0x21,0x31,0x41,0x06,0x13,0x51,0x61,0x07,0x22,0x71,0x14,0x32,0x81,0x91,0xa1,0x08,
+      0x23,0x42,0xb1,0xc1,0x15,0x52,0xd1,0xf0,0x24,0x33,0x62,0x72,0x82,0x09,0x0a,0x16,0x17,0x18,0x19,0x1a,0x25,0x26,0x27,0x28,
+      0x29,0x2a,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x53,0x54,0x55,0x56,0x57,0x58,0x59,
+      0x5a,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x83,0x84,0x85,0x86,0x87,0x88,0x89,
+      0x8a,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xb2,0xb3,0xb4,0xb5,0xb6,
+      0xb7,0xb8,0xb9,0xba,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,0xe1,0xe2,
+      0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa
+   };
+   static const unsigned char std_dc_chrominance_nrcodes[] = {0,0,3,1,1,1,1,1,1,1,1,1,0,0,0,0,0};
+   static const unsigned char std_dc_chrominance_values[] = {0,1,2,3,4,5,6,7,8,9,10,11};
+   static const unsigned char std_ac_chrominance_nrcodes[] = {0,0,2,1,2,4,4,3,4,7,5,4,4,0,1,2,0x77};
+   static const unsigned char std_ac_chrominance_values[] = {
+      0x00,0x01,0x02,0x03,0x11,0x04,0x05,0x21,0x31,0x06,0x12,0x41,0x51,0x07,0x61,0x71,0x13,0x22,0x32,0x81,0x08,0x14,0x42,0x91,
+      0xa1,0xb1,0xc1,0x09,0x23,0x33,0x52,0xf0,0x15,0x62,0x72,0xd1,0x0a,0x16,0x24,0x34,0xe1,0x25,0xf1,0x17,0x18,0x19,0x1a,0x26,
+      0x27,0x28,0x29,0x2a,0x35,0x36,0x37,0x38,0x39,0x3a,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x53,0x54,0x55,0x56,0x57,0x58,
+      0x59,0x5a,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x82,0x83,0x84,0x85,0x86,0x87,
+      0x88,0x89,0x8a,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xb2,0xb3,0xb4,
+      0xb5,0xb6,0xb7,0xb8,0xb9,0xba,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,
+      0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa
+   };
+   // Huffman tables
+   static const unsigned short YDC_HT[256][2] = { {0,2},{2,3},{3,3},{4,3},{5,3},{6,3},{14,4},{30,5},{62,6},{126,7},{254,8},{510,9}};
+   static const unsigned short UVDC_HT[256][2] = { {0,2},{1,2},{2,2},{6,3},{14,4},{30,5},{62,6},{126,7},{254,8},{510,9},{1022,10},{2046,11}};
+   static const unsigned short YAC_HT[256][2] = {
+      {10,4},{0,2},{1,2},{4,3},{11,4},{26,5},{120,7},{248,8},{1014,10},{65410,16},{65411,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {12,4},{27,5},{121,7},{502,9},{2038,11},{65412,16},{65413,16},{65414,16},{65415,16},{65416,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {28,5},{249,8},{1015,10},{4084,12},{65417,16},{65418,16},{65419,16},{65420,16},{65421,16},{65422,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {58,6},{503,9},{4085,12},{65423,16},{65424,16},{65425,16},{65426,16},{65427,16},{65428,16},{65429,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {59,6},{1016,10},{65430,16},{65431,16},{65432,16},{65433,16},{65434,16},{65435,16},{65436,16},{65437,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {122,7},{2039,11},{65438,16},{65439,16},{65440,16},{65441,16},{65442,16},{65443,16},{65444,16},{65445,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {123,7},{4086,12},{65446,16},{65447,16},{65448,16},{65449,16},{65450,16},{65451,16},{65452,16},{65453,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {250,8},{4087,12},{65454,16},{65455,16},{65456,16},{65457,16},{65458,16},{65459,16},{65460,16},{65461,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {504,9},{32704,15},{65462,16},{65463,16},{65464,16},{65465,16},{65466,16},{65467,16},{65468,16},{65469,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {505,9},{65470,16},{65471,16},{65472,16},{65473,16},{65474,16},{65475,16},{65476,16},{65477,16},{65478,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {506,9},{65479,16},{65480,16},{65481,16},{65482,16},{65483,16},{65484,16},{65485,16},{65486,16},{65487,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {1017,10},{65488,16},{65489,16},{65490,16},{65491,16},{65492,16},{65493,16},{65494,16},{65495,16},{65496,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {1018,10},{65497,16},{65498,16},{65499,16},{65500,16},{65501,16},{65502,16},{65503,16},{65504,16},{65505,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {2040,11},{65506,16},{65507,16},{65508,16},{65509,16},{65510,16},{65511,16},{65512,16},{65513,16},{65514,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {65515,16},{65516,16},{65517,16},{65518,16},{65519,16},{65520,16},{65521,16},{65522,16},{65523,16},{65524,16},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {2041,11},{65525,16},{65526,16},{65527,16},{65528,16},{65529,16},{65530,16},{65531,16},{65532,16},{65533,16},{65534,16},{0,0},{0,0},{0,0},{0,0},{0,0}
+   };
+   static const unsigned short UVAC_HT[256][2] = {
+      {0,2},{1,2},{4,3},{10,4},{24,5},{25,5},{56,6},{120,7},{500,9},{1014,10},{4084,12},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {11,4},{57,6},{246,8},{501,9},{2038,11},{4085,12},{65416,16},{65417,16},{65418,16},{65419,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {26,5},{247,8},{1015,10},{4086,12},{32706,15},{65420,16},{65421,16},{65422,16},{65423,16},{65424,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {27,5},{248,8},{1016,10},{4087,12},{65425,16},{65426,16},{65427,16},{65428,16},{65429,16},{65430,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {58,6},{502,9},{65431,16},{65432,16},{65433,16},{65434,16},{65435,16},{65436,16},{65437,16},{65438,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {59,6},{1017,10},{65439,16},{65440,16},{65441,16},{65442,16},{65443,16},{65444,16},{65445,16},{65446,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {121,7},{2039,11},{65447,16},{65448,16},{65449,16},{65450,16},{65451,16},{65452,16},{65453,16},{65454,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {122,7},{2040,11},{65455,16},{65456,16},{65457,16},{65458,16},{65459,16},{65460,16},{65461,16},{65462,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {249,8},{65463,16},{65464,16},{65465,16},{65466,16},{65467,16},{65468,16},{65469,16},{65470,16},{65471,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {503,9},{65472,16},{65473,16},{65474,16},{65475,16},{65476,16},{65477,16},{65478,16},{65479,16},{65480,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {504,9},{65481,16},{65482,16},{65483,16},{65484,16},{65485,16},{65486,16},{65487,16},{65488,16},{65489,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {505,9},{65490,16},{65491,16},{65492,16},{65493,16},{65494,16},{65495,16},{65496,16},{65497,16},{65498,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {506,9},{65499,16},{65500,16},{65501,16},{65502,16},{65503,16},{65504,16},{65505,16},{65506,16},{65507,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {2041,11},{65508,16},{65509,16},{65510,16},{65511,16},{65512,16},{65513,16},{65514,16},{65515,16},{65516,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {16352,14},{65517,16},{65518,16},{65519,16},{65520,16},{65521,16},{65522,16},{65523,16},{65524,16},{65525,16},{0,0},{0,0},{0,0},{0,0},{0,0},
+      {1018,10},{32707,15},{65526,16},{65527,16},{65528,16},{65529,16},{65530,16},{65531,16},{65532,16},{65533,16},{65534,16},{0,0},{0,0},{0,0},{0,0},{0,0}
+   };
+   static const int YQT[] = {16,11,10,16,24,40,51,61,12,12,14,19,26,58,60,55,14,13,16,24,40,57,69,56,14,17,22,29,51,87,80,62,18,22,
+                             37,56,68,109,103,77,24,35,55,64,81,104,113,92,49,64,78,87,103,121,120,101,72,92,95,98,112,100,103,99};
+   static const int UVQT[] = {17,18,24,47,99,99,99,99,18,21,26,66,99,99,99,99,24,26,56,99,99,99,99,99,47,66,99,99,99,99,99,99,
+                              99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99};
+   static const float aasf[] = { 1.0f * 2.828427125f, 1.387039845f * 2.828427125f, 1.306562965f * 2.828427125f, 1.175875602f * 2.828427125f,
+                                 1.0f * 2.828427125f, 0.785694958f * 2.828427125f, 0.541196100f * 2.828427125f, 0.275899379f * 2.828427125f };
+
+   int row, col, i, k, subsample;
+   float fdtbl_Y[64], fdtbl_UV[64];
+   unsigned char YTable[64], UVTable[64];
+
+   if(!data || !width || !height || comp > 4 || comp < 1) {
+      return 0;
+   }
+
+   quality = quality ? quality : 90;
+   subsample = quality <= 90 ? 1 : 0;
+   quality = quality < 1 ? 1 : quality > 100 ? 100 : quality;
+   quality = quality < 50 ? 5000 / quality : 200 - quality * 2;
+
+   for(i = 0; i < 64; ++i) {
+      int uvti, yti = (YQT[i]*quality+50)/100;
+      YTable[stbiw__jpg_ZigZag[i]] = (unsigned char) (yti < 1 ? 1 : yti > 255 ? 255 : yti);
+      uvti = (UVQT[i]*quality+50)/100;
+      UVTable[stbiw__jpg_ZigZag[i]] = (unsigned char) (uvti < 1 ? 1 : uvti > 255 ? 255 : uvti);
+   }
+
+   for(row = 0, k = 0; row < 8; ++row) {
+      for(col = 0; col < 8; ++col, ++k) {
+         fdtbl_Y[k]  = 1 / (YTable [stbiw__jpg_ZigZag[k]] * aasf[row] * aasf[col]);
+         fdtbl_UV[k] = 1 / (UVTable[stbiw__jpg_ZigZag[k]] * aasf[row] * aasf[col]);
+      }
+   }
+
+   // Write Headers
+   {
+      static const unsigned char head0[] = { 0xFF,0xD8,0xFF,0xE0,0,0x10,'J','F','I','F',0,1,1,0,0,1,0,1,0,0,0xFF,0xDB,0,0x84,0 };
+      static const unsigned char head2[] = { 0xFF,0xDA,0,0xC,3,1,0,2,0x11,3,0x11,0,0x3F,0 };
+      const unsigned char head1[] = { 0xFF,0xC0,0,0x11,8,(unsigned char)(height>>8),STBIW_UCHAR(height),(unsigned char)(width>>8),STBIW_UCHAR(width),
+                                      3,1,(unsigned char)(subsample?0x22:0x11),0,2,0x11,1,3,0x11,1,0xFF,0xC4,0x01,0xA2,0 };
+      s->func(s->context, (void*)head0, sizeof(head0));
+      s->func(s->context, (void*)YTable, sizeof(YTable));
+      stbiw__putc(s, 1);
+      s->func(s->context, UVTable, sizeof(UVTable));
+      s->func(s->context, (void*)head1, sizeof(head1));
+      s->func(s->context, (void*)(std_dc_luminance_nrcodes+1), sizeof(std_dc_luminance_nrcodes)-1);
+      s->func(s->context, (void*)std_dc_luminance_values, sizeof(std_dc_luminance_values));
+      stbiw__putc(s, 0x10); // HTYACinfo
+      s->func(s->context, (void*)(std_ac_luminance_nrcodes+1), sizeof(std_ac_luminance_nrcodes)-1);
+      s->func(s->context, (void*)std_ac_luminance_values, sizeof(std_ac_luminance_values));
+      stbiw__putc(s, 1); // HTUDCinfo
+      s->func(s->context, (void*)(std_dc_chrominance_nrcodes+1), sizeof(std_dc_chrominance_nrcodes)-1);
+      s->func(s->context, (void*)std_dc_chrominance_values, sizeof(std_dc_chrominance_values));
+      stbiw__putc(s, 0x11); // HTUACinfo
+      s->func(s->context, (void*)(std_ac_chrominance_nrcodes+1), sizeof(std_ac_chrominance_nrcodes)-1);
+      s->func(s->context, (void*)std_ac_chrominance_values, sizeof(std_ac_chrominance_values));
+      s->func(s->context, (void*)head2, sizeof(head2));
+   }
+
+   // Encode 8x8 macroblocks
+   {
+      static const unsigned short fillBits[] = {0x7F, 7};
+      int DCY=0, DCU=0, DCV=0;
+      int bitBuf=0, bitCnt=0;
+      // comp == 2 is grey+alpha (alpha is ignored)
+      int ofsG = comp > 2 ? 1 : 0, ofsB = comp > 2 ? 2 : 0;
+      const unsigned char *dataR = (const unsigned char *)data;
+      const unsigned char *dataG = dataR + ofsG;
+      const unsigned char *dataB = dataR + ofsB;
+      int x, y, pos;
+      if(subsample) {
+         for(y = 0; y < height; y += 16) {
+            for(x = 0; x < width; x += 16) {
+               float Y[256], U[256], V[256];
+               for(row = y, pos = 0; row < y+16; ++row) {
+                  // row >= height => use last input row
+                  int clamped_row = (row < height) ? row : height - 1;
+                  int base_p = (stbi__flip_vertically_on_write ? (height-1-clamped_row) : clamped_row)*width*comp;
+                  for(col = x; col < x+16; ++col, ++pos) {
+                     // if col >= width => use pixel from last input column
+                     int p = base_p + ((col < width) ? col : (width-1))*comp;
+                     float r = dataR[p], g = dataG[p], b = dataB[p];
+                     Y[pos]= +0.29900f*r + 0.58700f*g + 0.11400f*b - 128;
+                     U[pos]= -0.16874f*r - 0.33126f*g + 0.50000f*b;
+                     V[pos]= +0.50000f*r - 0.41869f*g - 0.08131f*b;
+                  }
+               }
+               DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+0,   16, fdtbl_Y, DCY, YDC_HT, YAC_HT);
+               DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+8,   16, fdtbl_Y, DCY, YDC_HT, YAC_HT);
+               DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+128, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT);
+               DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+136, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT);
+
+               // subsample U,V
+               {
+                  float subU[64], subV[64];
+                  int yy, xx;
+                  for(yy = 0, pos = 0; yy < 8; ++yy) {
+                     for(xx = 0; xx < 8; ++xx, ++pos) {
+                        int j = yy*32+xx*2;
+                        subU[pos] = (U[j+0] + U[j+1] + U[j+16] + U[j+17]) * 0.25f;
+                        subV[pos] = (V[j+0] + V[j+1] + V[j+16] + V[j+17]) * 0.25f;
+                     }
+                  }
+                  DCU = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, subU, 8, fdtbl_UV, DCU, UVDC_HT, UVAC_HT);
+                  DCV = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, subV, 8, fdtbl_UV, DCV, UVDC_HT, UVAC_HT);
+               }
+            }
+         }
+      } else {
+         for(y = 0; y < height; y += 8) {
+            for(x = 0; x < width; x += 8) {
+               float Y[64], U[64], V[64];
+               for(row = y, pos = 0; row < y+8; ++row) {
+                  // row >= height => use last input row
+                  int clamped_row = (row < height) ? row : height - 1;
+                  int base_p = (stbi__flip_vertically_on_write ? (height-1-clamped_row) : clamped_row)*width*comp;
+                  for(col = x; col < x+8; ++col, ++pos) {
+                     // if col >= width => use pixel from last input column
+                     int p = base_p + ((col < width) ? col : (width-1))*comp;
+                     float r = dataR[p], g = dataG[p], b = dataB[p];
+                     Y[pos]= +0.29900f*r + 0.58700f*g + 0.11400f*b - 128;
+                     U[pos]= -0.16874f*r - 0.33126f*g + 0.50000f*b;
+                     V[pos]= +0.50000f*r - 0.41869f*g - 0.08131f*b;
+                  }
+               }
+
+               DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y, 8, fdtbl_Y,  DCY, YDC_HT, YAC_HT);
+               DCU = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, U, 8, fdtbl_UV, DCU, UVDC_HT, UVAC_HT);
+               DCV = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, V, 8, fdtbl_UV, DCV, UVDC_HT, UVAC_HT);
+            }
+         }
+      }
+
+      // Do the bit alignment of the EOI marker
+      stbiw__jpg_writeBits(s, &bitBuf, &bitCnt, fillBits);
+   }
+
+   // EOI
+   stbiw__putc(s, 0xFF);
+   stbiw__putc(s, 0xD9);
+
+   return 1;
+}
+
+STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
+{
+   stbi__write_context s = { 0 };
+   stbi__start_write_callbacks(&s, func, context);
+   return stbi_write_jpg_core(&s, x, y, comp, (void *) data, quality);
+}
+
+
+#ifndef STBI_WRITE_NO_STDIO
+STBIWDEF int stbi_write_jpg(char const *filename, int x, int y, int comp, const void *data, int quality)
+{
+   stbi__write_context s = { 0 };
+   if (stbi__start_write_file(&s,filename)) {
+      int r = stbi_write_jpg_core(&s, x, y, comp, data, quality);
+      stbi__end_write_file(&s);
+      return r;
+   } else
+      return 0;
+}
+#endif
+
+#endif // STB_IMAGE_WRITE_IMPLEMENTATION
+
+/* Revision history
+      1.16  (2021-07-11)
+             make Deflate code emit uncompressed blocks when it would otherwise expand
+             support writing BMPs with alpha channel
+      1.15  (2020-07-13) unknown
+      1.14  (2020-02-02) updated JPEG writer to downsample chroma channels
+      1.13
+      1.12
+      1.11  (2019-08-11)
+
+      1.10  (2019-02-07)
+             support utf8 filenames in Windows; fix warnings and platform ifdefs
+      1.09  (2018-02-11)
+             fix typo in zlib quality API, improve STB_I_W_STATIC in C++
+      1.08  (2018-01-29)
+             add stbi__flip_vertically_on_write, external zlib, zlib quality, choose PNG filter
+      1.07  (2017-07-24)
+             doc fix
+      1.06 (2017-07-23)
+             writing JPEG (using Jon Olick's code)
+      1.05   ???
+      1.04 (2017-03-03)
+             monochrome BMP expansion
+      1.03   ???
+      1.02 (2016-04-02)
+             avoid allocating large structures on the stack
+      1.01 (2016-01-16)
+             STBIW_REALLOC_SIZED: support allocators with no realloc support
+             avoid race-condition in crc initialization
+             minor compile issues
+      1.00 (2015-09-14)
+             installable file IO function
+      0.99 (2015-09-13)
+             warning fixes; TGA rle support
+      0.98 (2015-04-08)
+             added STBIW_MALLOC, STBIW_ASSERT etc
+      0.97 (2015-01-18)
+             fixed HDR asserts, rewrote HDR rle logic
+      0.96 (2015-01-17)
+             add HDR output
+             fix monochrome BMP
+      0.95 (2014-08-17)
+             add monochrome TGA output
+      0.94 (2014-05-31)
+             rename private functions to avoid conflicts with stb_image.h
+      0.93 (2014-05-27)
+             warning fixes
+      0.92 (2010-08-01)
+             casts to unsigned char to fix warnings
+      0.91 (2010-07-17)
+             first public release
+      0.90   first internal release
+*/
+
+/*
+------------------------------------------------------------------------------
+This software is available under 2 licenses -- choose whichever you prefer.
+------------------------------------------------------------------------------
+ALTERNATIVE A - MIT License
+Copyright (c) 2017 Sean Barrett
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+------------------------------------------------------------------------------
+ALTERNATIVE B - Public Domain (www.unlicense.org)
+This is free and unencumbered software released into the public domain.
+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+software, either in source code form or as a compiled binary, for any purpose,
+commercial or non-commercial, and by any means.
+In jurisdictions that recognize copyright laws, the author or authors of this
+software dedicate any and all copyright interest in the software to the public
+domain. We make this dedication for the benefit of the public at large and to
+the detriment of our heirs and successors. We intend this dedication to be an
+overt act of relinquishment in perpetuity of all present and future rights to
+this software under copyright law.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+------------------------------------------------------------------------------
+*/
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/tinycthread.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/tinycthread.c
new file mode 100644
index 000000000000..f9cea2ed8c85
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/tinycthread.c
@@ -0,0 +1,594 @@
+/* -*- mode: c; tab-width: 2; indent-tabs-mode: nil; -*-
+Copyright (c) 2012 Marcus Geelnard
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+    1. The origin of this software must not be misrepresented; you must not
+    claim that you wrote the original software. If you use this software
+    in a product, an acknowledgment in the product documentation would be
+    appreciated but is not required.
+
+    2. Altered source versions must be plainly marked as such, and must not be
+    misrepresented as being the original software.
+
+    3. This notice may not be removed or altered from any source
+    distribution.
+*/
+
+/* 2013-01-06 Camilla Löwy <elmindreda@glfw.org>
+ *
+ * Added casts from time_t to DWORD to avoid warnings on VC++.
+ * Fixed time retrieval on POSIX systems.
+ */
+
+#include "tinycthread.h"
+#include <stdlib.h>
+
+/* Platform specific includes */
+#if defined(_TTHREAD_POSIX_)
+  #include <signal.h>
+  #include <sched.h>
+  #include <unistd.h>
+  #include <sys/time.h>
+  #include <errno.h>
+#elif defined(_TTHREAD_WIN32_)
+  #include <process.h>
+  #include <sys/timeb.h>
+#endif
+
+/* Standard, good-to-have defines */
+#ifndef NULL
+  #define NULL (void*)0
+#endif
+#ifndef TRUE
+  #define TRUE 1
+#endif
+#ifndef FALSE
+  #define FALSE 0
+#endif
+
+int mtx_init(mtx_t *mtx, int type)
+{
+#if defined(_TTHREAD_WIN32_)
+  mtx->mAlreadyLocked = FALSE;
+  mtx->mRecursive = type & mtx_recursive;
+  InitializeCriticalSection(&mtx->mHandle);
+  return thrd_success;
+#else
+  int ret;
+  pthread_mutexattr_t attr;
+  pthread_mutexattr_init(&attr);
+  if (type & mtx_recursive)
+  {
+    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+  }
+  ret = pthread_mutex_init(mtx, &attr);
+  pthread_mutexattr_destroy(&attr);
+  return ret == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+void mtx_destroy(mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+  DeleteCriticalSection(&mtx->mHandle);
+#else
+  pthread_mutex_destroy(mtx);
+#endif
+}
+
+int mtx_lock(mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+  EnterCriticalSection(&mtx->mHandle);
+  if (!mtx->mRecursive)
+  {
+    while(mtx->mAlreadyLocked) Sleep(1000); /* Simulate deadlock... */
+    mtx->mAlreadyLocked = TRUE;
+  }
+  return thrd_success;
+#else
+  return pthread_mutex_lock(mtx) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+int mtx_timedlock(mtx_t *mtx, const struct timespec *ts)
+{
+  /* FIXME! */
+  (void)mtx;
+  (void)ts;
+  return thrd_error;
+}
+
+int mtx_trylock(mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+  int ret = TryEnterCriticalSection(&mtx->mHandle) ? thrd_success : thrd_busy;
+  if ((!mtx->mRecursive) && (ret == thrd_success) && mtx->mAlreadyLocked)
+  {
+    LeaveCriticalSection(&mtx->mHandle);
+    ret = thrd_busy;
+  }
+  return ret;
+#else
+  return (pthread_mutex_trylock(mtx) == 0) ? thrd_success : thrd_busy;
+#endif
+}
+
+int mtx_unlock(mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+  mtx->mAlreadyLocked = FALSE;
+  LeaveCriticalSection(&mtx->mHandle);
+  return thrd_success;
+#else
+  return pthread_mutex_unlock(mtx) == 0 ? thrd_success : thrd_error;;
+#endif
+}
+
+#if defined(_TTHREAD_WIN32_)
+#define _CONDITION_EVENT_ONE 0
+#define _CONDITION_EVENT_ALL 1
+#endif
+
+int cnd_init(cnd_t *cond)
+{
+#if defined(_TTHREAD_WIN32_)
+  cond->mWaitersCount = 0;
+
+  /* Init critical section */
+  InitializeCriticalSection(&cond->mWaitersCountLock);
+
+  /* Init events */
+  cond->mEvents[_CONDITION_EVENT_ONE] = CreateEvent(NULL, FALSE, FALSE, NULL);
+  if (cond->mEvents[_CONDITION_EVENT_ONE] == NULL)
+  {
+    cond->mEvents[_CONDITION_EVENT_ALL] = NULL;
+    return thrd_error;
+  }
+  cond->mEvents[_CONDITION_EVENT_ALL] = CreateEvent(NULL, TRUE, FALSE, NULL);
+  if (cond->mEvents[_CONDITION_EVENT_ALL] == NULL)
+  {
+    CloseHandle(cond->mEvents[_CONDITION_EVENT_ONE]);
+    cond->mEvents[_CONDITION_EVENT_ONE] = NULL;
+    return thrd_error;
+  }
+
+  return thrd_success;
+#else
+  return pthread_cond_init(cond, NULL) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+void cnd_destroy(cnd_t *cond)
+{
+#if defined(_TTHREAD_WIN32_)
+  if (cond->mEvents[_CONDITION_EVENT_ONE] != NULL)
+  {
+    CloseHandle(cond->mEvents[_CONDITION_EVENT_ONE]);
+  }
+  if (cond->mEvents[_CONDITION_EVENT_ALL] != NULL)
+  {
+    CloseHandle(cond->mEvents[_CONDITION_EVENT_ALL]);
+  }
+  DeleteCriticalSection(&cond->mWaitersCountLock);
+#else
+  pthread_cond_destroy(cond);
+#endif
+}
+
+int cnd_signal(cnd_t *cond)
+{
+#if defined(_TTHREAD_WIN32_)
+  int haveWaiters;
+
+  /* Are there any waiters? */
+  EnterCriticalSection(&cond->mWaitersCountLock);
+  haveWaiters = (cond->mWaitersCount > 0);
+  LeaveCriticalSection(&cond->mWaitersCountLock);
+
+  /* If we have any waiting threads, send them a signal */
+  if(haveWaiters)
+  {
+    if (SetEvent(cond->mEvents[_CONDITION_EVENT_ONE]) == 0)
+    {
+      return thrd_error;
+    }
+  }
+
+  return thrd_success;
+#else
+  return pthread_cond_signal(cond) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+int cnd_broadcast(cnd_t *cond)
+{
+#if defined(_TTHREAD_WIN32_)
+  int haveWaiters;
+
+  /* Are there any waiters? */
+  EnterCriticalSection(&cond->mWaitersCountLock);
+  haveWaiters = (cond->mWaitersCount > 0);
+  LeaveCriticalSection(&cond->mWaitersCountLock);
+
+  /* If we have any waiting threads, send them a signal */
+  if(haveWaiters)
+  {
+    if (SetEvent(cond->mEvents[_CONDITION_EVENT_ALL]) == 0)
+    {
+      return thrd_error;
+    }
+  }
+
+  return thrd_success;
+#else
+  return pthread_cond_signal(cond) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+#if defined(_TTHREAD_WIN32_)
+static int _cnd_timedwait_win32(cnd_t *cond, mtx_t *mtx, DWORD timeout)
+{
+  int result, lastWaiter;
+
+  /* Increment number of waiters */
+  EnterCriticalSection(&cond->mWaitersCountLock);
+  ++ cond->mWaitersCount;
+  LeaveCriticalSection(&cond->mWaitersCountLock);
+
+  /* Release the mutex while waiting for the condition (will decrease
+     the number of waiters when done)... */
+  mtx_unlock(mtx);
+
+  /* Wait for either event to become signaled due to cnd_signal() or
+     cnd_broadcast() being called */
+  result = WaitForMultipleObjects(2, cond->mEvents, FALSE, timeout);
+  if (result == WAIT_TIMEOUT)
+  {
+    return thrd_timeout;
+  }
+  else if (result == (int)WAIT_FAILED)
+  {
+    return thrd_error;
+  }
+
+  /* Check if we are the last waiter */
+  EnterCriticalSection(&cond->mWaitersCountLock);
+  -- cond->mWaitersCount;
+  lastWaiter = (result == (WAIT_OBJECT_0 + _CONDITION_EVENT_ALL)) &&
+               (cond->mWaitersCount == 0);
+  LeaveCriticalSection(&cond->mWaitersCountLock);
+
+  /* If we are the last waiter to be notified to stop waiting, reset the event */
+  if (lastWaiter)
+  {
+    if (ResetEvent(cond->mEvents[_CONDITION_EVENT_ALL]) == 0)
+    {
+      return thrd_error;
+    }
+  }
+
+  /* Re-acquire the mutex */
+  mtx_lock(mtx);
+
+  return thrd_success;
+}
+#endif
+
+int cnd_wait(cnd_t *cond, mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+  return _cnd_timedwait_win32(cond, mtx, INFINITE);
+#else
+  return pthread_cond_wait(cond, mtx) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+int cnd_timedwait(cnd_t *cond, mtx_t *mtx, const struct timespec *ts)
+{
+#if defined(_TTHREAD_WIN32_)
+  struct timespec now;
+  if (clock_gettime(CLOCK_REALTIME, &now) == 0)
+  {
+    DWORD delta = (DWORD) ((ts->tv_sec - now.tv_sec) * 1000 +
+                           (ts->tv_nsec - now.tv_nsec + 500000) / 1000000);
+    return _cnd_timedwait_win32(cond, mtx, delta);
+  }
+  else
+    return thrd_error;
+#else
+  int ret;
+  ret = pthread_cond_timedwait(cond, mtx, ts);
+  if (ret == ETIMEDOUT)
+  {
+    return thrd_timeout;
+  }
+  return ret == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+
+/** Information to pass to the new thread (what to run). */
+typedef struct {
+  thrd_start_t mFunction; /**< Pointer to the function to be executed. */
+  void * mArg;            /**< Function argument for the thread function. */
+} _thread_start_info;
+
+/* Thread wrapper function. */
+#if defined(_TTHREAD_WIN32_)
+static unsigned WINAPI _thrd_wrapper_function(void * aArg)
+#elif defined(_TTHREAD_POSIX_)
+static void * _thrd_wrapper_function(void * aArg)
+#endif
+{
+  thrd_start_t fun;
+  void *arg;
+  int  res;
+#if defined(_TTHREAD_POSIX_)
+  void *pres;
+#endif
+
+  /* Get thread startup information */
+  _thread_start_info *ti = (_thread_start_info *) aArg;
+  fun = ti->mFunction;
+  arg = ti->mArg;
+
+  /* The thread is responsible for freeing the startup information */
+  free((void *)ti);
+
+  /* Call the actual client thread function */
+  res = fun(arg);
+
+#if defined(_TTHREAD_WIN32_)
+  return res;
+#else
+  pres = malloc(sizeof(int));
+  if (pres != NULL)
+  {
+    *(int*)pres = res;
+  }
+  return pres;
+#endif
+}
+
+int thrd_create(thrd_t *thr, thrd_start_t func, void *arg)
+{
+  /* Fill out the thread startup information (passed to the thread wrapper,
+     which will eventually free it) */
+  _thread_start_info* ti = (_thread_start_info*)malloc(sizeof(_thread_start_info));
+  if (ti == NULL)
+  {
+    return thrd_nomem;
+  }
+  ti->mFunction = func;
+  ti->mArg = arg;
+
+  /* Create the thread */
+#if defined(_TTHREAD_WIN32_)
+  *thr = (HANDLE)_beginthreadex(NULL, 0, _thrd_wrapper_function, (void *)ti, 0, NULL);
+#elif defined(_TTHREAD_POSIX_)
+  if(pthread_create(thr, NULL, _thrd_wrapper_function, (void *)ti) != 0)
+  {
+    *thr = 0;
+  }
+#endif
+
+  /* Did we fail to create the thread? */
+  if(!*thr)
+  {
+    free(ti);
+    return thrd_error;
+  }
+
+  return thrd_success;
+}
+
+thrd_t thrd_current(void)
+{
+#if defined(_TTHREAD_WIN32_)
+  return GetCurrentThread();
+#else
+  return pthread_self();
+#endif
+}
+
+int thrd_detach(thrd_t thr)
+{
+  /* FIXME! */
+  (void)thr;
+  return thrd_error;
+}
+
+int thrd_equal(thrd_t thr0, thrd_t thr1)
+{
+#if defined(_TTHREAD_WIN32_)
+  return thr0 == thr1;
+#else
+  return pthread_equal(thr0, thr1);
+#endif
+}
+
+void thrd_exit(int res)
+{
+#if defined(_TTHREAD_WIN32_)
+  ExitThread(res);
+#else
+  void *pres = malloc(sizeof(int));
+  if (pres != NULL)
+  {
+    *(int*)pres = res;
+  }
+  pthread_exit(pres);
+#endif
+}
+
+int thrd_join(thrd_t thr, int *res)
+{
+#if defined(_TTHREAD_WIN32_)
+  if (WaitForSingleObject(thr, INFINITE) == WAIT_FAILED)
+  {
+    return thrd_error;
+  }
+  if (res != NULL)
+  {
+    DWORD dwRes;
+    GetExitCodeThread(thr, &dwRes);
+    *res = dwRes;
+  }
+#elif defined(_TTHREAD_POSIX_)
+  void *pres;
+  int ires = 0;
+  if (pthread_join(thr, &pres) != 0)
+  {
+    return thrd_error;
+  }
+  if (pres != NULL)
+  {
+    ires = *(int*)pres;
+    free(pres);
+  }
+  if (res != NULL)
+  {
+    *res = ires;
+  }
+#endif
+  return thrd_success;
+}
+
+int thrd_sleep(const struct timespec *time_point, struct timespec *remaining)
+{
+  struct timespec now;
+#if defined(_TTHREAD_WIN32_)
+  DWORD delta;
+#else
+  long delta;
+#endif
+
+  /* Get the current time */
+  if (clock_gettime(CLOCK_REALTIME, &now) != 0)
+    return -2;  // FIXME: Some specific error code?
+
+#if defined(_TTHREAD_WIN32_)
+  /* Delta in milliseconds */
+  delta = (DWORD) ((time_point->tv_sec - now.tv_sec) * 1000 +
+                   (time_point->tv_nsec - now.tv_nsec + 500000) / 1000000);
+  if (delta > 0)
+  {
+    Sleep(delta);
+  }
+#else
+  /* Delta in microseconds */
+  delta = (time_point->tv_sec - now.tv_sec) * 1000000L +
+          (time_point->tv_nsec - now.tv_nsec + 500L) / 1000L;
+
+  /* On some systems, the usleep argument must be < 1000000 */
+  while (delta > 999999L)
+  {
+    usleep(999999);
+    delta -= 999999L;
+  }
+  if (delta > 0L)
+  {
+    usleep((useconds_t)delta);
+  }
+#endif
+
+  /* We don't support waking up prematurely (yet) */
+  if (remaining)
+  {
+    remaining->tv_sec = 0;
+    remaining->tv_nsec = 0;
+  }
+  return 0;
+}
+
+void thrd_yield(void)
+{
+#if defined(_TTHREAD_WIN32_)
+  Sleep(0);
+#else
+  sched_yield();
+#endif
+}
+
+int tss_create(tss_t *key, tss_dtor_t dtor)
+{
+#if defined(_TTHREAD_WIN32_)
+  /* FIXME: The destructor function is not supported yet... */
+  if (dtor != NULL)
+  {
+    return thrd_error;
+  }
+  *key = TlsAlloc();
+  if (*key == TLS_OUT_OF_INDEXES)
+  {
+    return thrd_error;
+  }
+#else
+  if (pthread_key_create(key, dtor) != 0)
+  {
+    return thrd_error;
+  }
+#endif
+  return thrd_success;
+}
+
+void tss_delete(tss_t key)
+{
+#if defined(_TTHREAD_WIN32_)
+  TlsFree(key);
+#else
+  pthread_key_delete(key);
+#endif
+}
+
+void *tss_get(tss_t key)
+{
+#if defined(_TTHREAD_WIN32_)
+  return TlsGetValue(key);
+#else
+  return pthread_getspecific(key);
+#endif
+}
+
+int tss_set(tss_t key, void *val)
+{
+#if defined(_TTHREAD_WIN32_)
+  if (TlsSetValue(key, val) == 0)
+  {
+    return thrd_error;
+  }
+#else
+  if (pthread_setspecific(key, val) != 0)
+  {
+    return thrd_error;
+  }
+#endif
+  return thrd_success;
+}
+
+#if defined(_TTHREAD_EMULATE_CLOCK_GETTIME_)
+int _tthread_clock_gettime(clockid_t clk_id, struct timespec *ts)
+{
+#if defined(_TTHREAD_WIN32_)
+  struct _timeb tb;
+  _ftime(&tb);
+  ts->tv_sec = (time_t)tb.time;
+  ts->tv_nsec = 1000000L * (long)tb.millitm;
+#else
+  struct timeval tv;
+  gettimeofday(&tv, NULL);
+  ts->tv_sec = (time_t)tv.tv_sec;
+  ts->tv_nsec = 1000L * (long)tv.tv_usec;
+#endif
+  return 0;
+}
+#endif // _TTHREAD_EMULATE_CLOCK_GETTIME_
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/tinycthread.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/tinycthread.h
new file mode 100644
index 000000000000..42958c393e86
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/tinycthread.h
@@ -0,0 +1,443 @@
+/* -*- mode: c; tab-width: 2; indent-tabs-mode: nil; -*-
+Copyright (c) 2012 Marcus Geelnard
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+    1. The origin of this software must not be misrepresented; you must not
+    claim that you wrote the original software. If you use this software
+    in a product, an acknowledgment in the product documentation would be
+    appreciated but is not required.
+
+    2. Altered source versions must be plainly marked as such, and must not be
+    misrepresented as being the original software.
+
+    3. This notice may not be removed or altered from any source
+    distribution.
+*/
+
+#ifndef _TINYCTHREAD_H_
+#define _TINYCTHREAD_H_
+
+/**
+* @file
+* @mainpage TinyCThread API Reference
+*
+* @section intro_sec Introduction
+* TinyCThread is a minimal, portable implementation of basic threading
+* classes for C.
+*
+* They closely mimic the functionality and naming of the C11 standard, and
+* should be easily replaceable with the corresponding standard variants.
+*
+* @section port_sec Portability
+* The Win32 variant uses the native Win32 API for implementing the thread
+* classes, while for other systems, the POSIX threads API (pthread) is used.
+*
+* @section misc_sec Miscellaneous
+* The following special keywords are available: #_Thread_local.
+*
+* For more detailed information, browse the different sections of this
+* documentation. A good place to start is:
+* tinycthread.h.
+*/
+
+/* Which platform are we on? */
+#if !defined(_TTHREAD_PLATFORM_DEFINED_)
+  #if defined(_WIN32) || defined(__WIN32__) || defined(__WINDOWS__)
+    #define _TTHREAD_WIN32_
+  #else
+    #define _TTHREAD_POSIX_
+  #endif
+  #define _TTHREAD_PLATFORM_DEFINED_
+#endif
+
+/* Activate some POSIX functionality (e.g. clock_gettime and recursive mutexes) */
+#if defined(_TTHREAD_POSIX_)
+  #undef _FEATURES_H
+  #if !defined(_GNU_SOURCE)
+    #define _GNU_SOURCE
+  #endif
+  #if !defined(_POSIX_C_SOURCE) || ((_POSIX_C_SOURCE - 0) < 199309L)
+    #undef _POSIX_C_SOURCE
+    #define _POSIX_C_SOURCE 199309L
+  #endif
+  #if !defined(_XOPEN_SOURCE) || ((_XOPEN_SOURCE - 0) < 500)
+    #undef _XOPEN_SOURCE
+    #define _XOPEN_SOURCE 500
+  #endif
+#endif
+
+/* Generic includes */
+#include <time.h>
+
+/* Platform specific includes */
+#if defined(_TTHREAD_POSIX_)
+  #include <sys/time.h>
+  #include <pthread.h>
+#elif defined(_TTHREAD_WIN32_)
+  #ifndef WIN32_LEAN_AND_MEAN
+    #define WIN32_LEAN_AND_MEAN
+    #define __UNDEF_LEAN_AND_MEAN
+  #endif
+  #include <windows.h>
+  #ifdef __UNDEF_LEAN_AND_MEAN
+    #undef WIN32_LEAN_AND_MEAN
+    #undef __UNDEF_LEAN_AND_MEAN
+  #endif
+#endif
+
+/* Workaround for missing TIME_UTC: If time.h doesn't provide TIME_UTC,
+   it's quite likely that libc does not support it either. Hence, fall back to
+   the only other supported time specifier: CLOCK_REALTIME (and if that fails,
+   we're probably emulating clock_gettime anyway, so anything goes). */
+#ifndef TIME_UTC
+  #ifdef CLOCK_REALTIME
+    #define TIME_UTC CLOCK_REALTIME
+  #else
+    #define TIME_UTC 0
+  #endif
+#endif
+
+/* Workaround for missing clock_gettime (most Windows compilers, afaik) */
+#if defined(_TTHREAD_WIN32_) || defined(__APPLE_CC__)
+#define _TTHREAD_EMULATE_CLOCK_GETTIME_
+/* Emulate struct timespec */
+#if defined(_TTHREAD_WIN32_)
+struct _ttherad_timespec {
+  time_t tv_sec;
+  long   tv_nsec;
+};
+#define timespec _ttherad_timespec
+#endif
+
+/* Emulate clockid_t */
+typedef int _tthread_clockid_t;
+#define clockid_t _tthread_clockid_t
+
+/* Emulate clock_gettime */
+int _tthread_clock_gettime(clockid_t clk_id, struct timespec *ts);
+#define clock_gettime _tthread_clock_gettime
+#ifndef CLOCK_REALTIME
+  #define CLOCK_REALTIME 0
+#endif
+#endif
+
+
+/** TinyCThread version (major number). */
+#define TINYCTHREAD_VERSION_MAJOR 1
+/** TinyCThread version (minor number). */
+#define TINYCTHREAD_VERSION_MINOR 1
+/** TinyCThread version (full version). */
+#define TINYCTHREAD_VERSION (TINYCTHREAD_VERSION_MAJOR * 100 + TINYCTHREAD_VERSION_MINOR)
+
+/**
+* @def _Thread_local
+* Thread local storage keyword.
+* A variable that is declared with the @c _Thread_local keyword makes the
+* value of the variable local to each thread (known as thread-local storage,
+* or TLS). Example usage:
+* @code
+* // This variable is local to each thread.
+* _Thread_local int variable;
+* @endcode
+* @note The @c _Thread_local keyword is a macro that maps to the corresponding
+* compiler directive (e.g. @c __declspec(thread)).
+* @note This directive is currently not supported on Mac OS X (it will give
+* a compiler error), since compile-time TLS is not supported in the Mac OS X
+* executable format. Also, some older versions of MinGW (before GCC 4.x) do
+* not support this directive.
+* @hideinitializer
+*/
+
+/* FIXME: Check for a PROPER value of __STDC_VERSION__ to know if we have C11 */
+#if !(defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201102L)) && !defined(_Thread_local)
+ #if defined(__GNUC__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_CC) || defined(__IBMCPP__)
+  #define _Thread_local __thread
+ #else
+  #define _Thread_local __declspec(thread)
+ #endif
+#endif
+
+/* Macros */
+#define TSS_DTOR_ITERATIONS 0
+
+/* Function return values */
+#define thrd_error    0 /**< The requested operation failed */
+#define thrd_success  1 /**< The requested operation succeeded */
+#define thrd_timeout  2 /**< The time specified in the call was reached without acquiring the requested resource */
+#define thrd_busy     3 /**< The requested operation failed because a tesource requested by a test and return function is already in use */
+#define thrd_nomem    4 /**< The requested operation failed because it was unable to allocate memory */
+
+/* Mutex types */
+#define mtx_plain     1
+#define mtx_timed     2
+#define mtx_try       4
+#define mtx_recursive 8
+
+/* Mutex */
+#if defined(_TTHREAD_WIN32_)
+typedef struct {
+  CRITICAL_SECTION mHandle;   /* Critical section handle */
+  int mAlreadyLocked;         /* TRUE if the mutex is already locked */
+  int mRecursive;             /* TRUE if the mutex is recursive */
+} mtx_t;
+#else
+typedef pthread_mutex_t mtx_t;
+#endif
+
+/** Create a mutex object.
+* @param mtx A mutex object.
+* @param type Bit-mask that must have one of the following six values:
+*   @li @c mtx_plain for a simple non-recursive mutex
+*   @li @c mtx_timed for a non-recursive mutex that supports timeout
+*   @li @c mtx_try for a non-recursive mutex that supports test and return
+*   @li @c mtx_plain | @c mtx_recursive (same as @c mtx_plain, but recursive)
+*   @li @c mtx_timed | @c mtx_recursive (same as @c mtx_timed, but recursive)
+*   @li @c mtx_try | @c mtx_recursive (same as @c mtx_try, but recursive)
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int mtx_init(mtx_t *mtx, int type);
+
+/** Release any resources used by the given mutex.
+* @param mtx A mutex object.
+*/
+void mtx_destroy(mtx_t *mtx);
+
+/** Lock the given mutex.
+* Blocks until the given mutex can be locked. If the mutex is non-recursive, and
+* the calling thread already has a lock on the mutex, this call will block
+* forever.
+* @param mtx A mutex object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int mtx_lock(mtx_t *mtx);
+
+/** NOT YET IMPLEMENTED.
+*/
+int mtx_timedlock(mtx_t *mtx, const struct timespec *ts);
+
+/** Try to lock the given mutex.
+* The specified mutex shall support either test and return or timeout. If the
+* mutex is already locked, the function returns without blocking.
+* @param mtx A mutex object.
+* @return @ref thrd_success on success, or @ref thrd_busy if the resource
+* requested is already in use, or @ref thrd_error if the request could not be
+* honored.
+*/
+int mtx_trylock(mtx_t *mtx);
+
+/** Unlock the given mutex.
+* @param mtx A mutex object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int mtx_unlock(mtx_t *mtx);
+
+/* Condition variable */
+#if defined(_TTHREAD_WIN32_)
+typedef struct {
+  HANDLE mEvents[2];                  /* Signal and broadcast event HANDLEs. */
+  unsigned int mWaitersCount;         /* Count of the number of waiters. */
+  CRITICAL_SECTION mWaitersCountLock; /* Serialize access to mWaitersCount. */
+} cnd_t;
+#else
+typedef pthread_cond_t cnd_t;
+#endif
+
+/** Create a condition variable object.
+* @param cond A condition variable object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int cnd_init(cnd_t *cond);
+
+/** Release any resources used by the given condition variable.
+* @param cond A condition variable object.
+*/
+void cnd_destroy(cnd_t *cond);
+
+/** Signal a condition variable.
+* Unblocks one of the threads that are blocked on the given condition variable
+* at the time of the call. If no threads are blocked on the condition variable
+* at the time of the call, the function does nothing and return success.
+* @param cond A condition variable object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int cnd_signal(cnd_t *cond);
+
+/** Broadcast a condition variable.
+* Unblocks all of the threads that are blocked on the given condition variable
+* at the time of the call. If no threads are blocked on the condition variable
+* at the time of the call, the function does nothing and return success.
+* @param cond A condition variable object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int cnd_broadcast(cnd_t *cond);
+
+/** Wait for a condition variable to become signaled.
+* The function atomically unlocks the given mutex and endeavors to block until
+* the given condition variable is signaled by a call to cnd_signal or to
+* cnd_broadcast. When the calling thread becomes unblocked it locks the mutex
+* before it returns.
+* @param cond A condition variable object.
+* @param mtx A mutex object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int cnd_wait(cnd_t *cond, mtx_t *mtx);
+
+/** Wait for a condition variable to become signaled.
+* The function atomically unlocks the given mutex and endeavors to block until
+* the given condition variable is signaled by a call to cnd_signal or to
+* cnd_broadcast, or until after the specified time. When the calling thread
+* becomes unblocked it locks the mutex before it returns.
+* @param cond A condition variable object.
+* @param mtx A mutex object.
+* @param xt A point in time at which the request will time out (absolute time).
+* @return @ref thrd_success upon success, or @ref thrd_timeout if the time
+* specified in the call was reached without acquiring the requested resource, or
+* @ref thrd_error if the request could not be honored.
+*/
+int cnd_timedwait(cnd_t *cond, mtx_t *mtx, const struct timespec *ts);
+
+/* Thread */
+#if defined(_TTHREAD_WIN32_)
+typedef HANDLE thrd_t;
+#else
+typedef pthread_t thrd_t;
+#endif
+
+/** Thread start function.
+* Any thread that is started with the @ref thrd_create() function must be
+* started through a function of this type.
+* @param arg The thread argument (the @c arg argument of the corresponding
+*        @ref thrd_create() call).
+* @return The thread return value, which can be obtained by another thread
+* by using the @ref thrd_join() function.
+*/
+typedef int (*thrd_start_t)(void *arg);
+
+/** Create a new thread.
+* @param thr Identifier of the newly created thread.
+* @param func A function pointer to the function that will be executed in
+*        the new thread.
+* @param arg An argument to the thread function.
+* @return @ref thrd_success on success, or @ref thrd_nomem if no memory could
+* be allocated for the thread requested, or @ref thrd_error if the request
+* could not be honored.
+* @note A thread’s identifier may be reused for a different thread once the
+* original thread has exited and either been detached or joined to another
+* thread.
+*/
+int thrd_create(thrd_t *thr, thrd_start_t func, void *arg);
+
+/** Identify the calling thread.
+* @return The identifier of the calling thread.
+*/
+thrd_t thrd_current(void);
+
+/** NOT YET IMPLEMENTED.
+*/
+int thrd_detach(thrd_t thr);
+
+/** Compare two thread identifiers.
+* The function determines if two thread identifiers refer to the same thread.
+* @return Zero if the two thread identifiers refer to different threads.
+* Otherwise a nonzero value is returned.
+*/
+int thrd_equal(thrd_t thr0, thrd_t thr1);
+
+/** Terminate execution of the calling thread.
+* @param res Result code of the calling thread.
+*/
+void thrd_exit(int res);
+
+/** Wait for a thread to terminate.
+* The function joins the given thread with the current thread by blocking
+* until the other thread has terminated.
+* @param thr The thread to join with.
+* @param res If this pointer is not NULL, the function will store the result
+*        code of the given thread in the integer pointed to by @c res.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int thrd_join(thrd_t thr, int *res);
+
+/** Put the calling thread to sleep.
+* Suspend execution of the calling thread.
+* @param time_point A point in time at which the thread will resume (absolute time).
+* @param remaining If non-NULL, this parameter will hold the remaining time until
+*                  time_point upon return. This will typically be zero, but if
+*                  the thread was woken up by a signal that is not ignored before
+*                  time_point was reached @c remaining will hold a positive
+*                  time.
+* @return 0 (zero) on successful sleep, or -1 if an interrupt occurred.
+*/
+int thrd_sleep(const struct timespec *time_point, struct timespec *remaining);
+
+/** Yield execution to another thread.
+* Permit other threads to run, even if the current thread would ordinarily
+* continue to run.
+*/
+void thrd_yield(void);
+
+/* Thread local storage */
+#if defined(_TTHREAD_WIN32_)
+typedef DWORD tss_t;
+#else
+typedef pthread_key_t tss_t;
+#endif
+
+/** Destructor function for a thread-specific storage.
+* @param val The value of the destructed thread-specific storage.
+*/
+typedef void (*tss_dtor_t)(void *val);
+
+/** Create a thread-specific storage.
+* @param key The unique key identifier that will be set if the function is
+*        successful.
+* @param dtor Destructor function. This can be NULL.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+* @note The destructor function is not supported under Windows. If @c dtor is
+* not NULL when calling this function under Windows, the function will fail
+* and return @ref thrd_error.
+*/
+int tss_create(tss_t *key, tss_dtor_t dtor);
+
+/** Delete a thread-specific storage.
+* The function releases any resources used by the given thread-specific
+* storage.
+* @param key The key that shall be deleted.
+*/
+void tss_delete(tss_t key);
+
+/** Get the value for a thread-specific storage.
+* @param key The thread-specific storage identifier.
+* @return The value for the current thread held in the given thread-specific
+* storage.
+*/
+void *tss_get(tss_t key);
+
+/** Set the value for a thread-specific storage.
+* @param key The thread-specific storage identifier.
+* @param val The value of the thread-specific storage to set for the current
+*        thread.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int tss_set(tss_t key, void *val);
+
+
+#endif /* _TINYTHREAD_H_ */
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/fractional-scale-v1.xml b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/fractional-scale-v1.xml
new file mode 100644
index 000000000000..350bfc01eafa
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/fractional-scale-v1.xml
@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="fractional_scale_v1">
+  <copyright>
+    Copyright © 2022 Kenny Levinsen
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <description summary="Protocol for requesting fractional surface scales">
+    This protocol allows a compositor to suggest for surfaces to render at
+    fractional scales.
+
+    A client can submit scaled content by utilizing wp_viewport. This is done by
+    creating a wp_viewport object for the surface and setting the destination
+    rectangle to the surface size before the scale factor is applied.
+
+    The buffer size is calculated by multiplying the surface size by the
+    intended scale.
+
+    The wl_surface buffer scale should remain set to 1.
+
+    If a surface has a surface-local size of 100 px by 50 px and wishes to
+    submit buffers with a scale of 1.5, then a buffer of 150px by 75 px should
+    be used and the wp_viewport destination rectangle should be 100 px by 50 px.
+
+    For toplevel surfaces, the size is rounded halfway away from zero. The
+    rounding algorithm for subsurface position and size is not defined.
+  </description>
+
+  <interface name="wp_fractional_scale_manager_v1" version="1">
+    <description summary="fractional surface scale information">
+      A global interface for requesting surfaces to use fractional scales.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="unbind the fractional surface scale interface">
+        Informs the server that the client will not be using this protocol
+        object anymore. This does not affect any other objects,
+        wp_fractional_scale_v1 objects included.
+      </description>
+    </request>
+
+    <enum name="error">
+      <entry name="fractional_scale_exists" value="0"
+        summary="the surface already has a fractional_scale object associated"/>
+    </enum>
+
+    <request name="get_fractional_scale">
+      <description summary="extend surface interface for scale information">
+        Create an add-on object for the the wl_surface to let the compositor
+        request fractional scales. If the given wl_surface already has a
+        wp_fractional_scale_v1 object associated, the fractional_scale_exists
+        protocol error is raised.
+      </description>
+      <arg name="id" type="new_id" interface="wp_fractional_scale_v1"
+           summary="the new surface scale info interface id"/>
+      <arg name="surface" type="object" interface="wl_surface"
+           summary="the surface"/>
+    </request>
+  </interface>
+
+  <interface name="wp_fractional_scale_v1" version="1">
+    <description summary="fractional scale interface to a wl_surface">
+      An additional interface to a wl_surface object which allows the compositor
+      to inform the client of the preferred scale.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="remove surface scale information for surface">
+        Destroy the fractional scale object. When this object is destroyed,
+        preferred_scale events will no longer be sent.
+      </description>
+    </request>
+
+    <event name="preferred_scale">
+      <description summary="notify of new preferred scale">
+        Notification of a new preferred scale for this surface that the
+        compositor suggests that the client should use.
+
+        The sent scale is the numerator of a fraction with a denominator of 120.
+      </description>
+      <arg name="scale" type="uint" summary="the new preferred scale"/>
+    </event>
+  </interface>
+</protocol>
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/idle-inhibit-unstable-v1.xml b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/idle-inhibit-unstable-v1.xml
new file mode 100644
index 000000000000..9c06cdcba6c0
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/idle-inhibit-unstable-v1.xml
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="idle_inhibit_unstable_v1">
+
+  <copyright>
+    Copyright © 2015 Samsung Electronics Co., Ltd
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <interface name="zwp_idle_inhibit_manager_v1" version="1">
+    <description summary="control behavior when display idles">
+      This interface permits inhibiting the idle behavior such as screen
+      blanking, locking, and screensaving.  The client binds the idle manager
+      globally, then creates idle-inhibitor objects for each surface.
+
+      Warning! The protocol described in this file is experimental and
+      backward incompatible changes may be made. Backward compatible changes
+      may be added together with the corresponding interface version bump.
+      Backward incompatible changes are done by bumping the version number in
+      the protocol and interface names and resetting the interface version.
+      Once the protocol is to be declared stable, the 'z' prefix and the
+      version number in the protocol and interface names are removed and the
+      interface version number is reset.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the idle inhibitor object">
+	Destroy the inhibit manager.
+      </description>
+    </request>
+
+    <request name="create_inhibitor">
+      <description summary="create a new inhibitor object">
+	Create a new inhibitor object associated with the given surface.
+      </description>
+      <arg name="id" type="new_id" interface="zwp_idle_inhibitor_v1"/>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="the surface that inhibits the idle behavior"/>
+    </request>
+
+  </interface>
+
+  <interface name="zwp_idle_inhibitor_v1" version="1">
+    <description summary="context object for inhibiting idle behavior">
+      An idle inhibitor prevents the output that the associated surface is
+      visible on from being set to a state where it is not visually usable due
+      to lack of user interaction (e.g. blanked, dimmed, locked, set to power
+      save, etc.)  Any screensaver processes are also blocked from displaying.
+
+      If the surface is destroyed, unmapped, becomes occluded, loses
+      visibility, or otherwise becomes not visually relevant for the user, the
+      idle inhibitor will not be honored by the compositor; if the surface
+      subsequently regains visibility the inhibitor takes effect once again.
+      Likewise, the inhibitor isn't honored if the system was already idled at
+      the time the inhibitor was established, although if the system later
+      de-idles and re-idles the inhibitor will take effect.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the idle inhibitor object">
+	Remove the inhibitor effect from the associated wl_surface.
+      </description>
+    </request>
+
+  </interface>
+</protocol>
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/pointer-constraints-unstable-v1.xml b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/pointer-constraints-unstable-v1.xml
new file mode 100644
index 000000000000..efd64b6603c8
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/pointer-constraints-unstable-v1.xml
@@ -0,0 +1,339 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="pointer_constraints_unstable_v1">
+
+  <copyright>
+    Copyright © 2014      Jonas Ådahl
+    Copyright © 2015      Red Hat Inc.
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <description summary="protocol for constraining pointer motions">
+    This protocol specifies a set of interfaces used for adding constraints to
+    the motion of a pointer. Possible constraints include confining pointer
+    motions to a given region, or locking it to its current position.
+
+    In order to constrain the pointer, a client must first bind the global
+    interface "wp_pointer_constraints" which, if a compositor supports pointer
+    constraints, is exposed by the registry. Using the bound global object, the
+    client uses the request that corresponds to the type of constraint it wants
+    to make. See wp_pointer_constraints for more details.
+
+    Warning! The protocol described in this file is experimental and backward
+    incompatible changes may be made. Backward compatible changes may be added
+    together with the corresponding interface version bump. Backward
+    incompatible changes are done by bumping the version number in the protocol
+    and interface names and resetting the interface version. Once the protocol
+    is to be declared stable, the 'z' prefix and the version number in the
+    protocol and interface names are removed and the interface version number is
+    reset.
+  </description>
+
+  <interface name="zwp_pointer_constraints_v1" version="1">
+    <description summary="constrain the movement of a pointer">
+      The global interface exposing pointer constraining functionality. It
+      exposes two requests: lock_pointer for locking the pointer to its
+      position, and confine_pointer for locking the pointer to a region.
+
+      The lock_pointer and confine_pointer requests create the objects
+      wp_locked_pointer and wp_confined_pointer respectively, and the client can
+      use these objects to interact with the lock.
+
+      For any surface, only one lock or confinement may be active across all
+      wl_pointer objects of the same seat. If a lock or confinement is requested
+      when another lock or confinement is active or requested on the same surface
+      and with any of the wl_pointer objects of the same seat, an
+      'already_constrained' error will be raised.
+    </description>
+
+    <enum name="error">
+      <description summary="wp_pointer_constraints error values">
+	These errors can be emitted in response to wp_pointer_constraints
+	requests.
+      </description>
+      <entry name="already_constrained" value="1"
+	     summary="pointer constraint already requested on that surface"/>
+    </enum>
+
+    <enum name="lifetime">
+      <description summary="constraint lifetime">
+	These values represent different lifetime semantics. They are passed
+	as arguments to the factory requests to specify how the constraint
+	lifetimes should be managed.
+      </description>
+      <entry name="oneshot" value="1">
+	<description summary="the pointer constraint is defunct once deactivated">
+	  A oneshot pointer constraint will never reactivate once it has been
+	  deactivated. See the corresponding deactivation event
+	  (wp_locked_pointer.unlocked and wp_confined_pointer.unconfined) for
+	  details.
+	</description>
+      </entry>
+      <entry name="persistent" value="2">
+	<description summary="the pointer constraint may reactivate">
+	  A persistent pointer constraint may again reactivate once it has
+	  been deactivated. See the corresponding deactivation event
+	  (wp_locked_pointer.unlocked and wp_confined_pointer.unconfined) for
+	  details.
+	</description>
+      </entry>
+    </enum>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the pointer constraints manager object">
+	Used by the client to notify the server that it will no longer use this
+	pointer constraints object.
+      </description>
+    </request>
+
+    <request name="lock_pointer">
+      <description summary="lock pointer to a position">
+	The lock_pointer request lets the client request to disable movements of
+	the virtual pointer (i.e. the cursor), effectively locking the pointer
+	to a position. This request may not take effect immediately; in the
+	future, when the compositor deems implementation-specific constraints
+	are satisfied, the pointer lock will be activated and the compositor
+	sends a locked event.
+
+	The protocol provides no guarantee that the constraints are ever
+	satisfied, and does not require the compositor to send an error if the
+	constraints cannot ever be satisfied. It is thus possible to request a
+	lock that will never activate.
+
+	There may not be another pointer constraint of any kind requested or
+	active on the surface for any of the wl_pointer objects of the seat of
+	the passed pointer when requesting a lock. If there is, an error will be
+	raised. See general pointer lock documentation for more details.
+
+	The intersection of the region passed with this request and the input
+	region of the surface is used to determine where the pointer must be
+	in order for the lock to activate. It is up to the compositor whether to
+	warp the pointer or require some kind of user interaction for the lock
+	to activate. If the region is null the surface input region is used.
+
+	A surface may receive pointer focus without the lock being activated.
+
+	The request creates a new object wp_locked_pointer which is used to
+	interact with the lock as well as receive updates about its state. See
+	the the description of wp_locked_pointer for further information.
+
+	Note that while a pointer is locked, the wl_pointer objects of the
+	corresponding seat will not emit any wl_pointer.motion events, but
+	relative motion events will still be emitted via wp_relative_pointer
+	objects of the same seat. wl_pointer.axis and wl_pointer.button events
+	are unaffected.
+      </description>
+      <arg name="id" type="new_id" interface="zwp_locked_pointer_v1"/>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="surface to lock pointer to"/>
+      <arg name="pointer" type="object" interface="wl_pointer"
+	   summary="the pointer that should be locked"/>
+      <arg name="region" type="object" interface="wl_region" allow-null="true"
+	   summary="region of surface"/>
+      <arg name="lifetime" type="uint" enum="lifetime" summary="lock lifetime"/>
+    </request>
+
+    <request name="confine_pointer">
+      <description summary="confine pointer to a region">
+	The confine_pointer request lets the client request to confine the
+	pointer cursor to a given region. This request may not take effect
+	immediately; in the future, when the compositor deems implementation-
+	specific constraints are satisfied, the pointer confinement will be
+	activated and the compositor sends a confined event.
+
+	The intersection of the region passed with this request and the input
+	region of the surface is used to determine where the pointer must be
+	in order for the confinement to activate. It is up to the compositor
+	whether to warp the pointer or require some kind of user interaction for
+	the confinement to activate. If the region is null the surface input
+	region is used.
+
+	The request will create a new object wp_confined_pointer which is used
+	to interact with the confinement as well as receive updates about its
+	state. See the the description of wp_confined_pointer for further
+	information.
+      </description>
+      <arg name="id" type="new_id" interface="zwp_confined_pointer_v1"/>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="surface to lock pointer to"/>
+      <arg name="pointer" type="object" interface="wl_pointer"
+	   summary="the pointer that should be confined"/>
+      <arg name="region" type="object" interface="wl_region" allow-null="true"
+	   summary="region of surface"/>
+      <arg name="lifetime" type="uint" enum="lifetime" summary="confinement lifetime"/>
+    </request>
+  </interface>
+
+  <interface name="zwp_locked_pointer_v1" version="1">
+    <description summary="receive relative pointer motion events">
+      The wp_locked_pointer interface represents a locked pointer state.
+
+      While the lock of this object is active, the wl_pointer objects of the
+      associated seat will not emit any wl_pointer.motion events.
+
+      This object will send the event 'locked' when the lock is activated.
+      Whenever the lock is activated, it is guaranteed that the locked surface
+      will already have received pointer focus and that the pointer will be
+      within the region passed to the request creating this object.
+
+      To unlock the pointer, send the destroy request. This will also destroy
+      the wp_locked_pointer object.
+
+      If the compositor decides to unlock the pointer the unlocked event is
+      sent. See wp_locked_pointer.unlock for details.
+
+      When unlocking, the compositor may warp the cursor position to the set
+      cursor position hint. If it does, it will not result in any relative
+      motion events emitted via wp_relative_pointer.
+
+      If the surface the lock was requested on is destroyed and the lock is not
+      yet activated, the wp_locked_pointer object is now defunct and must be
+      destroyed.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the locked pointer object">
+	Destroy the locked pointer object. If applicable, the compositor will
+	unlock the pointer.
+      </description>
+    </request>
+
+    <request name="set_cursor_position_hint">
+      <description summary="set the pointer cursor position hint">
+	Set the cursor position hint relative to the top left corner of the
+	surface.
+
+	If the client is drawing its own cursor, it should update the position
+	hint to the position of its own cursor. A compositor may use this
+	information to warp the pointer upon unlock in order to avoid pointer
+	jumps.
+
+	The cursor position hint is double buffered. The new hint will only take
+	effect when the associated surface gets it pending state applied. See
+	wl_surface.commit for details.
+      </description>
+      <arg name="surface_x" type="fixed"
+	   summary="surface-local x coordinate"/>
+      <arg name="surface_y" type="fixed"
+	   summary="surface-local y coordinate"/>
+    </request>
+
+    <request name="set_region">
+      <description summary="set a new lock region">
+	Set a new region used to lock the pointer.
+
+	The new lock region is double-buffered. The new lock region will
+	only take effect when the associated surface gets its pending state
+	applied. See wl_surface.commit for details.
+
+	For details about the lock region, see wp_locked_pointer.
+      </description>
+      <arg name="region" type="object" interface="wl_region" allow-null="true"
+	   summary="region of surface"/>
+    </request>
+
+    <event name="locked">
+      <description summary="lock activation event">
+	Notification that the pointer lock of the seat's pointer is activated.
+      </description>
+    </event>
+
+    <event name="unlocked">
+      <description summary="lock deactivation event">
+	Notification that the pointer lock of the seat's pointer is no longer
+	active. If this is a oneshot pointer lock (see
+	wp_pointer_constraints.lifetime) this object is now defunct and should
+	be destroyed. If this is a persistent pointer lock (see
+	wp_pointer_constraints.lifetime) this pointer lock may again
+	reactivate in the future.
+      </description>
+    </event>
+  </interface>
+
+  <interface name="zwp_confined_pointer_v1" version="1">
+    <description summary="confined pointer object">
+      The wp_confined_pointer interface represents a confined pointer state.
+
+      This object will send the event 'confined' when the confinement is
+      activated. Whenever the confinement is activated, it is guaranteed that
+      the surface the pointer is confined to will already have received pointer
+      focus and that the pointer will be within the region passed to the request
+      creating this object. It is up to the compositor to decide whether this
+      requires some user interaction and if the pointer will warp to within the
+      passed region if outside.
+
+      To unconfine the pointer, send the destroy request. This will also destroy
+      the wp_confined_pointer object.
+
+      If the compositor decides to unconfine the pointer the unconfined event is
+      sent. The wp_confined_pointer object is at this point defunct and should
+      be destroyed.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the confined pointer object">
+	Destroy the confined pointer object. If applicable, the compositor will
+	unconfine the pointer.
+      </description>
+    </request>
+
+    <request name="set_region">
+      <description summary="set a new confine region">
+	Set a new region used to confine the pointer.
+
+	The new confine region is double-buffered. The new confine region will
+	only take effect when the associated surface gets its pending state
+	applied. See wl_surface.commit for details.
+
+	If the confinement is active when the new confinement region is applied
+	and the pointer ends up outside of newly applied region, the pointer may
+	warped to a position within the new confinement region. If warped, a
+	wl_pointer.motion event will be emitted, but no
+	wp_relative_pointer.relative_motion event.
+
+	The compositor may also, instead of using the new region, unconfine the
+	pointer.
+
+	For details about the confine region, see wp_confined_pointer.
+      </description>
+      <arg name="region" type="object" interface="wl_region" allow-null="true"
+	   summary="region of surface"/>
+    </request>
+
+    <event name="confined">
+      <description summary="pointer confined">
+	Notification that the pointer confinement of the seat's pointer is
+	activated.
+      </description>
+    </event>
+
+    <event name="unconfined">
+      <description summary="pointer unconfined">
+	Notification that the pointer confinement of the seat's pointer is no
+	longer active. If this is a oneshot pointer confinement (see
+	wp_pointer_constraints.lifetime) this object is now defunct and should
+	be destroyed. If this is a persistent pointer confinement (see
+	wp_pointer_constraints.lifetime) this pointer confinement may again
+	reactivate in the future.
+      </description>
+    </event>
+  </interface>
+
+</protocol>
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/relative-pointer-unstable-v1.xml b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/relative-pointer-unstable-v1.xml
new file mode 100644
index 000000000000..ca6f81d12ac1
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/relative-pointer-unstable-v1.xml
@@ -0,0 +1,136 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="relative_pointer_unstable_v1">
+
+  <copyright>
+    Copyright © 2014      Jonas Ådahl
+    Copyright © 2015      Red Hat Inc.
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <description summary="protocol for relative pointer motion events">
+    This protocol specifies a set of interfaces used for making clients able to
+    receive relative pointer events not obstructed by barriers (such as the
+    monitor edge or other pointer barriers).
+
+    To start receiving relative pointer events, a client must first bind the
+    global interface "wp_relative_pointer_manager" which, if a compositor
+    supports relative pointer motion events, is exposed by the registry. After
+    having created the relative pointer manager proxy object, the client uses
+    it to create the actual relative pointer object using the
+    "get_relative_pointer" request given a wl_pointer. The relative pointer
+    motion events will then, when applicable, be transmitted via the proxy of
+    the newly created relative pointer object. See the documentation of the
+    relative pointer interface for more details.
+
+    Warning! The protocol described in this file is experimental and backward
+    incompatible changes may be made. Backward compatible changes may be added
+    together with the corresponding interface version bump. Backward
+    incompatible changes are done by bumping the version number in the protocol
+    and interface names and resetting the interface version. Once the protocol
+    is to be declared stable, the 'z' prefix and the version number in the
+    protocol and interface names are removed and the interface version number is
+    reset.
+  </description>
+
+  <interface name="zwp_relative_pointer_manager_v1" version="1">
+    <description summary="get relative pointer objects">
+      A global interface used for getting the relative pointer object for a
+      given pointer.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the relative pointer manager object">
+	Used by the client to notify the server that it will no longer use this
+	relative pointer manager object.
+      </description>
+    </request>
+
+    <request name="get_relative_pointer">
+      <description summary="get a relative pointer object">
+	Create a relative pointer interface given a wl_pointer object. See the
+	wp_relative_pointer interface for more details.
+      </description>
+      <arg name="id" type="new_id" interface="zwp_relative_pointer_v1"/>
+      <arg name="pointer" type="object" interface="wl_pointer"/>
+    </request>
+  </interface>
+
+  <interface name="zwp_relative_pointer_v1" version="1">
+    <description summary="relative pointer object">
+      A wp_relative_pointer object is an extension to the wl_pointer interface
+      used for emitting relative pointer events. It shares the same focus as
+      wl_pointer objects of the same seat and will only emit events when it has
+      focus.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="release the relative pointer object"/>
+    </request>
+
+    <event name="relative_motion">
+      <description summary="relative pointer motion">
+	Relative x/y pointer motion from the pointer of the seat associated with
+	this object.
+
+	A relative motion is in the same dimension as regular wl_pointer motion
+	events, except they do not represent an absolute position. For example,
+	moving a pointer from (x, y) to (x', y') would have the equivalent
+	relative motion (x' - x, y' - y). If a pointer motion caused the
+	absolute pointer position to be clipped by for example the edge of the
+	monitor, the relative motion is unaffected by the clipping and will
+	represent the unclipped motion.
+
+	This event also contains non-accelerated motion deltas. The
+	non-accelerated delta is, when applicable, the regular pointer motion
+	delta as it was before having applied motion acceleration and other
+	transformations such as normalization.
+
+	Note that the non-accelerated delta does not represent 'raw' events as
+	they were read from some device. Pointer motion acceleration is device-
+	and configuration-specific and non-accelerated deltas and accelerated
+	deltas may have the same value on some devices.
+
+	Relative motions are not coupled to wl_pointer.motion events, and can be
+	sent in combination with such events, but also independently. There may
+	also be scenarios where wl_pointer.motion is sent, but there is no
+	relative motion. The order of an absolute and relative motion event
+	originating from the same physical motion is not guaranteed.
+
+	If the client needs button events or focus state, it can receive them
+	from a wl_pointer object of the same seat that the wp_relative_pointer
+	object is associated with.
+      </description>
+      <arg name="utime_hi" type="uint"
+	   summary="high 32 bits of a 64 bit timestamp with microsecond granularity"/>
+      <arg name="utime_lo" type="uint"
+	   summary="low 32 bits of a 64 bit timestamp with microsecond granularity"/>
+      <arg name="dx" type="fixed"
+	   summary="the x component of the motion vector"/>
+      <arg name="dy" type="fixed"
+	   summary="the y component of the motion vector"/>
+      <arg name="dx_unaccel" type="fixed"
+	   summary="the x component of the unaccelerated motion vector"/>
+      <arg name="dy_unaccel" type="fixed"
+	   summary="the y component of the unaccelerated motion vector"/>
+    </event>
+  </interface>
+
+</protocol>
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/viewporter.xml b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/viewporter.xml
new file mode 100644
index 000000000000..d1048d1f3327
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/viewporter.xml
@@ -0,0 +1,180 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="viewporter">
+
+  <copyright>
+    Copyright © 2013-2016 Collabora, Ltd.
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <interface name="wp_viewporter" version="1">
+    <description summary="surface cropping and scaling">
+      The global interface exposing surface cropping and scaling
+      capabilities is used to instantiate an interface extension for a
+      wl_surface object. This extended interface will then allow
+      cropping and scaling the surface contents, effectively
+      disconnecting the direct relationship between the buffer and the
+      surface size.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="unbind from the cropping and scaling interface">
+	Informs the server that the client will not be using this
+	protocol object anymore. This does not affect any other objects,
+	wp_viewport objects included.
+      </description>
+    </request>
+
+    <enum name="error">
+      <entry name="viewport_exists" value="0"
+             summary="the surface already has a viewport object associated"/>
+    </enum>
+
+    <request name="get_viewport">
+      <description summary="extend surface interface for crop and scale">
+	Instantiate an interface extension for the given wl_surface to
+	crop and scale its content. If the given wl_surface already has
+	a wp_viewport object associated, the viewport_exists
+	protocol error is raised.
+      </description>
+      <arg name="id" type="new_id" interface="wp_viewport"
+           summary="the new viewport interface id"/>
+      <arg name="surface" type="object" interface="wl_surface"
+           summary="the surface"/>
+    </request>
+  </interface>
+
+  <interface name="wp_viewport" version="1">
+    <description summary="crop and scale interface to a wl_surface">
+      An additional interface to a wl_surface object, which allows the
+      client to specify the cropping and scaling of the surface
+      contents.
+
+      This interface works with two concepts: the source rectangle (src_x,
+      src_y, src_width, src_height), and the destination size (dst_width,
+      dst_height). The contents of the source rectangle are scaled to the
+      destination size, and content outside the source rectangle is ignored.
+      This state is double-buffered, and is applied on the next
+      wl_surface.commit.
+
+      The two parts of crop and scale state are independent: the source
+      rectangle, and the destination size. Initially both are unset, that
+      is, no scaling is applied. The whole of the current wl_buffer is
+      used as the source, and the surface size is as defined in
+      wl_surface.attach.
+
+      If the destination size is set, it causes the surface size to become
+      dst_width, dst_height. The source (rectangle) is scaled to exactly
+      this size. This overrides whatever the attached wl_buffer size is,
+      unless the wl_buffer is NULL. If the wl_buffer is NULL, the surface
+      has no content and therefore no size. Otherwise, the size is always
+      at least 1x1 in surface local coordinates.
+
+      If the source rectangle is set, it defines what area of the wl_buffer is
+      taken as the source. If the source rectangle is set and the destination
+      size is not set, then src_width and src_height must be integers, and the
+      surface size becomes the source rectangle size. This results in cropping
+      without scaling. If src_width or src_height are not integers and
+      destination size is not set, the bad_size protocol error is raised when
+      the surface state is applied.
+
+      The coordinate transformations from buffer pixel coordinates up to
+      the surface-local coordinates happen in the following order:
+        1. buffer_transform (wl_surface.set_buffer_transform)
+        2. buffer_scale (wl_surface.set_buffer_scale)
+        3. crop and scale (wp_viewport.set*)
+      This means, that the source rectangle coordinates of crop and scale
+      are given in the coordinates after the buffer transform and scale,
+      i.e. in the coordinates that would be the surface-local coordinates
+      if the crop and scale was not applied.
+
+      If src_x or src_y are negative, the bad_value protocol error is raised.
+      Otherwise, if the source rectangle is partially or completely outside of
+      the non-NULL wl_buffer, then the out_of_buffer protocol error is raised
+      when the surface state is applied. A NULL wl_buffer does not raise the
+      out_of_buffer error.
+
+      If the wl_surface associated with the wp_viewport is destroyed,
+      all wp_viewport requests except 'destroy' raise the protocol error
+      no_surface.
+
+      If the wp_viewport object is destroyed, the crop and scale
+      state is removed from the wl_surface. The change will be applied
+      on the next wl_surface.commit.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="remove scaling and cropping from the surface">
+	The associated wl_surface's crop and scale state is removed.
+	The change is applied on the next wl_surface.commit.
+      </description>
+    </request>
+
+    <enum name="error">
+      <entry name="bad_value" value="0"
+	     summary="negative or zero values in width or height"/>
+      <entry name="bad_size" value="1"
+	     summary="destination size is not integer"/>
+      <entry name="out_of_buffer" value="2"
+	     summary="source rectangle extends outside of the content area"/>
+      <entry name="no_surface" value="3"
+	     summary="the wl_surface was destroyed"/>
+    </enum>
+
+    <request name="set_source">
+      <description summary="set the source rectangle for cropping">
+	Set the source rectangle of the associated wl_surface. See
+	wp_viewport for the description, and relation to the wl_buffer
+	size.
+
+	If all of x, y, width and height are -1.0, the source rectangle is
+	unset instead. Any other set of values where width or height are zero
+	or negative, or x or y are negative, raise the bad_value protocol
+	error.
+
+	The crop and scale state is double-buffered state, and will be
+	applied on the next wl_surface.commit.
+      </description>
+      <arg name="x" type="fixed" summary="source rectangle x"/>
+      <arg name="y" type="fixed" summary="source rectangle y"/>
+      <arg name="width" type="fixed" summary="source rectangle width"/>
+      <arg name="height" type="fixed" summary="source rectangle height"/>
+    </request>
+
+    <request name="set_destination">
+      <description summary="set the surface size for scaling">
+	Set the destination size of the associated wl_surface. See
+	wp_viewport for the description, and relation to the wl_buffer
+	size.
+
+	If width is -1 and height is -1, the destination size is unset
+	instead. Any other pair of values for width and height that
+	contains zero or negative values raises the bad_value protocol
+	error.
+
+	The crop and scale state is double-buffered state, and will be
+	applied on the next wl_surface.commit.
+      </description>
+      <arg name="width" type="int" summary="surface width"/>
+      <arg name="height" type="int" summary="surface height"/>
+    </request>
+  </interface>
+
+</protocol>
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/wayland.xml b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/wayland.xml
new file mode 100644
index 000000000000..10e039d6ecce
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/wayland.xml
@@ -0,0 +1,3151 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="wayland">
+
+  <copyright>
+    Copyright © 2008-2011 Kristian Høgsberg
+    Copyright © 2010-2011 Intel Corporation
+    Copyright © 2012-2013 Collabora, Ltd.
+
+    Permission is hereby granted, free of charge, to any person
+    obtaining a copy of this software and associated documentation files
+    (the "Software"), to deal in the Software without restriction,
+    including without limitation the rights to use, copy, modify, merge,
+    publish, distribute, sublicense, and/or sell copies of the Software,
+    and to permit persons to whom the Software is furnished to do so,
+    subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the
+    next paragraph) shall be included in all copies or substantial
+    portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+    NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+    BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+    ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+    CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE.
+  </copyright>
+
+  <interface name="wl_display" version="1">
+    <description summary="core global object">
+      The core global object.  This is a special singleton object.  It
+      is used for internal Wayland protocol features.
+    </description>
+
+    <request name="sync">
+      <description summary="asynchronous roundtrip">
+	The sync request asks the server to emit the 'done' event
+	on the returned wl_callback object.  Since requests are
+	handled in-order and events are delivered in-order, this can
+	be used as a barrier to ensure all previous requests and the
+	resulting events have been handled.
+
+	The object returned by this request will be destroyed by the
+	compositor after the callback is fired and as such the client must not
+	attempt to use it after that point.
+
+	The callback_data passed in the callback is the event serial.
+      </description>
+      <arg name="callback" type="new_id" interface="wl_callback"
+	   summary="callback object for the sync request"/>
+    </request>
+
+    <request name="get_registry">
+      <description summary="get global registry object">
+	This request creates a registry object that allows the client
+	to list and bind the global objects available from the
+	compositor.
+
+	It should be noted that the server side resources consumed in
+	response to a get_registry request can only be released when the
+	client disconnects, not when the client side proxy is destroyed.
+	Therefore, clients should invoke get_registry as infrequently as
+	possible to avoid wasting memory.
+      </description>
+      <arg name="registry" type="new_id" interface="wl_registry"
+	   summary="global registry object"/>
+    </request>
+
+    <event name="error">
+      <description summary="fatal error event">
+	The error event is sent out when a fatal (non-recoverable)
+	error has occurred.  The object_id argument is the object
+	where the error occurred, most often in response to a request
+	to that object.  The code identifies the error and is defined
+	by the object interface.  As such, each interface defines its
+	own set of error codes.  The message is a brief description
+	of the error, for (debugging) convenience.
+      </description>
+      <arg name="object_id" type="object" summary="object where the error occurred"/>
+      <arg name="code" type="uint" summary="error code"/>
+      <arg name="message" type="string" summary="error description"/>
+    </event>
+
+    <enum name="error">
+      <description summary="global error values">
+	These errors are global and can be emitted in response to any
+	server request.
+      </description>
+      <entry name="invalid_object" value="0"
+	     summary="server couldn't find object"/>
+      <entry name="invalid_method" value="1"
+	     summary="method doesn't exist on the specified interface or malformed request"/>
+      <entry name="no_memory" value="2"
+	     summary="server is out of memory"/>
+      <entry name="implementation" value="3"
+	     summary="implementation error in compositor"/>
+    </enum>
+
+    <event name="delete_id">
+      <description summary="acknowledge object ID deletion">
+	This event is used internally by the object ID management
+	logic. When a client deletes an object that it had created,
+	the server will send this event to acknowledge that it has
+	seen the delete request. When the client receives this event,
+	it will know that it can safely reuse the object ID.
+      </description>
+      <arg name="id" type="uint" summary="deleted object ID"/>
+    </event>
+  </interface>
+
+  <interface name="wl_registry" version="1">
+    <description summary="global registry object">
+      The singleton global registry object.  The server has a number of
+      global objects that are available to all clients.  These objects
+      typically represent an actual object in the server (for example,
+      an input device) or they are singleton objects that provide
+      extension functionality.
+
+      When a client creates a registry object, the registry object
+      will emit a global event for each global currently in the
+      registry.  Globals come and go as a result of device or
+      monitor hotplugs, reconfiguration or other events, and the
+      registry will send out global and global_remove events to
+      keep the client up to date with the changes.  To mark the end
+      of the initial burst of events, the client can use the
+      wl_display.sync request immediately after calling
+      wl_display.get_registry.
+
+      A client can bind to a global object by using the bind
+      request.  This creates a client-side handle that lets the object
+      emit events to the client and lets the client invoke requests on
+      the object.
+    </description>
+
+    <request name="bind">
+      <description summary="bind an object to the display">
+	Binds a new, client-created object to the server using the
+	specified name as the identifier.
+      </description>
+      <arg name="name" type="uint" summary="unique numeric name of the object"/>
+      <arg name="id" type="new_id" summary="bounded object"/>
+    </request>
+
+    <event name="global">
+      <description summary="announce global object">
+	Notify the client of global objects.
+
+	The event notifies the client that a global object with
+	the given name is now available, and it implements the
+	given version of the given interface.
+      </description>
+      <arg name="name" type="uint" summary="numeric name of the global object"/>
+      <arg name="interface" type="string" summary="interface implemented by the object"/>
+      <arg name="version" type="uint" summary="interface version"/>
+    </event>
+
+    <event name="global_remove">
+      <description summary="announce removal of global object">
+	Notify the client of removed global objects.
+
+	This event notifies the client that the global identified
+	by name is no longer available.  If the client bound to
+	the global using the bind request, the client should now
+	destroy that object.
+
+	The object remains valid and requests to the object will be
+	ignored until the client destroys it, to avoid races between
+	the global going away and a client sending a request to it.
+      </description>
+      <arg name="name" type="uint" summary="numeric name of the global object"/>
+    </event>
+  </interface>
+
+  <interface name="wl_callback" version="1">
+    <description summary="callback object">
+      Clients can handle the 'done' event to get notified when
+      the related request is done.
+
+      Note, because wl_callback objects are created from multiple independent
+      factory interfaces, the wl_callback interface is frozen at version 1.
+    </description>
+
+    <event name="done" type="destructor">
+      <description summary="done event">
+	Notify the client when the related request is done.
+      </description>
+      <arg name="callback_data" type="uint" summary="request-specific data for the callback"/>
+    </event>
+  </interface>
+
+  <interface name="wl_compositor" version="6">
+    <description summary="the compositor singleton">
+      A compositor.  This object is a singleton global.  The
+      compositor is in charge of combining the contents of multiple
+      surfaces into one displayable output.
+    </description>
+
+    <request name="create_surface">
+      <description summary="create new surface">
+	Ask the compositor to create a new surface.
+      </description>
+      <arg name="id" type="new_id" interface="wl_surface" summary="the new surface"/>
+    </request>
+
+    <request name="create_region">
+      <description summary="create new region">
+	Ask the compositor to create a new region.
+      </description>
+      <arg name="id" type="new_id" interface="wl_region" summary="the new region"/>
+    </request>
+  </interface>
+
+  <interface name="wl_shm_pool" version="1">
+    <description summary="a shared memory pool">
+      The wl_shm_pool object encapsulates a piece of memory shared
+      between the compositor and client.  Through the wl_shm_pool
+      object, the client can allocate shared memory wl_buffer objects.
+      All objects created through the same pool share the same
+      underlying mapped memory. Reusing the mapped memory avoids the
+      setup/teardown overhead and is useful when interactively resizing
+      a surface or for many small buffers.
+    </description>
+
+    <request name="create_buffer">
+      <description summary="create a buffer from the pool">
+	Create a wl_buffer object from the pool.
+
+	The buffer is created offset bytes into the pool and has
+	width and height as specified.  The stride argument specifies
+	the number of bytes from the beginning of one row to the beginning
+	of the next.  The format is the pixel format of the buffer and
+	must be one of those advertised through the wl_shm.format event.
+
+	A buffer will keep a reference to the pool it was created from
+	so it is valid to destroy the pool immediately after creating
+	a buffer from it.
+      </description>
+      <arg name="id" type="new_id" interface="wl_buffer" summary="buffer to create"/>
+      <arg name="offset" type="int" summary="buffer byte offset within the pool"/>
+      <arg name="width" type="int" summary="buffer width, in pixels"/>
+      <arg name="height" type="int" summary="buffer height, in pixels"/>
+      <arg name="stride" type="int" summary="number of bytes from the beginning of one row to the beginning of the next row"/>
+      <arg name="format" type="uint" enum="wl_shm.format" summary="buffer pixel format"/>
+    </request>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the pool">
+	Destroy the shared memory pool.
+
+	The mmapped memory will be released when all
+	buffers that have been created from this pool
+	are gone.
+      </description>
+    </request>
+
+    <request name="resize">
+      <description summary="change the size of the pool mapping">
+	This request will cause the server to remap the backing memory
+	for the pool from the file descriptor passed when the pool was
+	created, but using the new size.  This request can only be
+	used to make the pool bigger.
+
+        This request only changes the amount of bytes that are mmapped
+        by the server and does not touch the file corresponding to the
+        file descriptor passed at creation time. It is the client's
+        responsibility to ensure that the file is at least as big as
+        the new pool size.
+      </description>
+      <arg name="size" type="int" summary="new size of the pool, in bytes"/>
+    </request>
+  </interface>
+
+  <interface name="wl_shm" version="1">
+    <description summary="shared memory support">
+      A singleton global object that provides support for shared
+      memory.
+
+      Clients can create wl_shm_pool objects using the create_pool
+      request.
+
+      On binding the wl_shm object one or more format events
+      are emitted to inform clients about the valid pixel formats
+      that can be used for buffers.
+    </description>
+
+    <enum name="error">
+      <description summary="wl_shm error values">
+	These errors can be emitted in response to wl_shm requests.
+      </description>
+      <entry name="invalid_format" value="0" summary="buffer format is not known"/>
+      <entry name="invalid_stride" value="1" summary="invalid size or stride during pool or buffer creation"/>
+      <entry name="invalid_fd" value="2" summary="mmapping the file descriptor failed"/>
+    </enum>
+
+    <enum name="format">
+      <description summary="pixel formats">
+	This describes the memory layout of an individual pixel.
+
+	All renderers should support argb8888 and xrgb8888 but any other
+	formats are optional and may not be supported by the particular
+	renderer in use.
+
+	The drm format codes match the macros defined in drm_fourcc.h, except
+	argb8888 and xrgb8888. The formats actually supported by the compositor
+	will be reported by the format event.
+
+	For all wl_shm formats and unless specified in another protocol
+	extension, pre-multiplied alpha is used for pixel values.
+      </description>
+      <!-- Note to protocol writers: don't update this list manually, instead
+	   run the automated script that keeps it in sync with drm_fourcc.h. -->
+      <entry name="argb8888" value="0" summary="32-bit ARGB format, [31:0] A:R:G:B 8:8:8:8 little endian"/>
+      <entry name="xrgb8888" value="1" summary="32-bit RGB format, [31:0] x:R:G:B 8:8:8:8 little endian"/>
+      <entry name="c8" value="0x20203843" summary="8-bit color index format, [7:0] C"/>
+      <entry name="rgb332" value="0x38424752" summary="8-bit RGB format, [7:0] R:G:B 3:3:2"/>
+      <entry name="bgr233" value="0x38524742" summary="8-bit BGR format, [7:0] B:G:R 2:3:3"/>
+      <entry name="xrgb4444" value="0x32315258" summary="16-bit xRGB format, [15:0] x:R:G:B 4:4:4:4 little endian"/>
+      <entry name="xbgr4444" value="0x32314258" summary="16-bit xBGR format, [15:0] x:B:G:R 4:4:4:4 little endian"/>
+      <entry name="rgbx4444" value="0x32315852" summary="16-bit RGBx format, [15:0] R:G:B:x 4:4:4:4 little endian"/>
+      <entry name="bgrx4444" value="0x32315842" summary="16-bit BGRx format, [15:0] B:G:R:x 4:4:4:4 little endian"/>
+      <entry name="argb4444" value="0x32315241" summary="16-bit ARGB format, [15:0] A:R:G:B 4:4:4:4 little endian"/>
+      <entry name="abgr4444" value="0x32314241" summary="16-bit ABGR format, [15:0] A:B:G:R 4:4:4:4 little endian"/>
+      <entry name="rgba4444" value="0x32314152" summary="16-bit RBGA format, [15:0] R:G:B:A 4:4:4:4 little endian"/>
+      <entry name="bgra4444" value="0x32314142" summary="16-bit BGRA format, [15:0] B:G:R:A 4:4:4:4 little endian"/>
+      <entry name="xrgb1555" value="0x35315258" summary="16-bit xRGB format, [15:0] x:R:G:B 1:5:5:5 little endian"/>
+      <entry name="xbgr1555" value="0x35314258" summary="16-bit xBGR 1555 format, [15:0] x:B:G:R 1:5:5:5 little endian"/>
+      <entry name="rgbx5551" value="0x35315852" summary="16-bit RGBx 5551 format, [15:0] R:G:B:x 5:5:5:1 little endian"/>
+      <entry name="bgrx5551" value="0x35315842" summary="16-bit BGRx 5551 format, [15:0] B:G:R:x 5:5:5:1 little endian"/>
+      <entry name="argb1555" value="0x35315241" summary="16-bit ARGB 1555 format, [15:0] A:R:G:B 1:5:5:5 little endian"/>
+      <entry name="abgr1555" value="0x35314241" summary="16-bit ABGR 1555 format, [15:0] A:B:G:R 1:5:5:5 little endian"/>
+      <entry name="rgba5551" value="0x35314152" summary="16-bit RGBA 5551 format, [15:0] R:G:B:A 5:5:5:1 little endian"/>
+      <entry name="bgra5551" value="0x35314142" summary="16-bit BGRA 5551 format, [15:0] B:G:R:A 5:5:5:1 little endian"/>
+      <entry name="rgb565" value="0x36314752" summary="16-bit RGB 565 format, [15:0] R:G:B 5:6:5 little endian"/>
+      <entry name="bgr565" value="0x36314742" summary="16-bit BGR 565 format, [15:0] B:G:R 5:6:5 little endian"/>
+      <entry name="rgb888" value="0x34324752" summary="24-bit RGB format, [23:0] R:G:B little endian"/>
+      <entry name="bgr888" value="0x34324742" summary="24-bit BGR format, [23:0] B:G:R little endian"/>
+      <entry name="xbgr8888" value="0x34324258" summary="32-bit xBGR format, [31:0] x:B:G:R 8:8:8:8 little endian"/>
+      <entry name="rgbx8888" value="0x34325852" summary="32-bit RGBx format, [31:0] R:G:B:x 8:8:8:8 little endian"/>
+      <entry name="bgrx8888" value="0x34325842" summary="32-bit BGRx format, [31:0] B:G:R:x 8:8:8:8 little endian"/>
+      <entry name="abgr8888" value="0x34324241" summary="32-bit ABGR format, [31:0] A:B:G:R 8:8:8:8 little endian"/>
+      <entry name="rgba8888" value="0x34324152" summary="32-bit RGBA format, [31:0] R:G:B:A 8:8:8:8 little endian"/>
+      <entry name="bgra8888" value="0x34324142" summary="32-bit BGRA format, [31:0] B:G:R:A 8:8:8:8 little endian"/>
+      <entry name="xrgb2101010" value="0x30335258" summary="32-bit xRGB format, [31:0] x:R:G:B 2:10:10:10 little endian"/>
+      <entry name="xbgr2101010" value="0x30334258" summary="32-bit xBGR format, [31:0] x:B:G:R 2:10:10:10 little endian"/>
+      <entry name="rgbx1010102" value="0x30335852" summary="32-bit RGBx format, [31:0] R:G:B:x 10:10:10:2 little endian"/>
+      <entry name="bgrx1010102" value="0x30335842" summary="32-bit BGRx format, [31:0] B:G:R:x 10:10:10:2 little endian"/>
+      <entry name="argb2101010" value="0x30335241" summary="32-bit ARGB format, [31:0] A:R:G:B 2:10:10:10 little endian"/>
+      <entry name="abgr2101010" value="0x30334241" summary="32-bit ABGR format, [31:0] A:B:G:R 2:10:10:10 little endian"/>
+      <entry name="rgba1010102" value="0x30334152" summary="32-bit RGBA format, [31:0] R:G:B:A 10:10:10:2 little endian"/>
+      <entry name="bgra1010102" value="0x30334142" summary="32-bit BGRA format, [31:0] B:G:R:A 10:10:10:2 little endian"/>
+      <entry name="yuyv" value="0x56595559" summary="packed YCbCr format, [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian"/>
+      <entry name="yvyu" value="0x55595659" summary="packed YCbCr format, [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian"/>
+      <entry name="uyvy" value="0x59565955" summary="packed YCbCr format, [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian"/>
+      <entry name="vyuy" value="0x59555956" summary="packed YCbCr format, [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian"/>
+      <entry name="ayuv" value="0x56555941" summary="packed AYCbCr format, [31:0] A:Y:Cb:Cr 8:8:8:8 little endian"/>
+      <entry name="nv12" value="0x3231564e" summary="2 plane YCbCr Cr:Cb format, 2x2 subsampled Cr:Cb plane"/>
+      <entry name="nv21" value="0x3132564e" summary="2 plane YCbCr Cb:Cr format, 2x2 subsampled Cb:Cr plane"/>
+      <entry name="nv16" value="0x3631564e" summary="2 plane YCbCr Cr:Cb format, 2x1 subsampled Cr:Cb plane"/>
+      <entry name="nv61" value="0x3136564e" summary="2 plane YCbCr Cb:Cr format, 2x1 subsampled Cb:Cr plane"/>
+      <entry name="yuv410" value="0x39565559" summary="3 plane YCbCr format, 4x4 subsampled Cb (1) and Cr (2) planes"/>
+      <entry name="yvu410" value="0x39555659" summary="3 plane YCbCr format, 4x4 subsampled Cr (1) and Cb (2) planes"/>
+      <entry name="yuv411" value="0x31315559" summary="3 plane YCbCr format, 4x1 subsampled Cb (1) and Cr (2) planes"/>
+      <entry name="yvu411" value="0x31315659" summary="3 plane YCbCr format, 4x1 subsampled Cr (1) and Cb (2) planes"/>
+      <entry name="yuv420" value="0x32315559" summary="3 plane YCbCr format, 2x2 subsampled Cb (1) and Cr (2) planes"/>
+      <entry name="yvu420" value="0x32315659" summary="3 plane YCbCr format, 2x2 subsampled Cr (1) and Cb (2) planes"/>
+      <entry name="yuv422" value="0x36315559" summary="3 plane YCbCr format, 2x1 subsampled Cb (1) and Cr (2) planes"/>
+      <entry name="yvu422" value="0x36315659" summary="3 plane YCbCr format, 2x1 subsampled Cr (1) and Cb (2) planes"/>
+      <entry name="yuv444" value="0x34325559" summary="3 plane YCbCr format, non-subsampled Cb (1) and Cr (2) planes"/>
+      <entry name="yvu444" value="0x34325659" summary="3 plane YCbCr format, non-subsampled Cr (1) and Cb (2) planes"/>
+      <entry name="r8" value="0x20203852" summary="[7:0] R"/>
+      <entry name="r16" value="0x20363152" summary="[15:0] R little endian"/>
+      <entry name="rg88" value="0x38384752" summary="[15:0] R:G 8:8 little endian"/>
+      <entry name="gr88" value="0x38385247" summary="[15:0] G:R 8:8 little endian"/>
+      <entry name="rg1616" value="0x32334752" summary="[31:0] R:G 16:16 little endian"/>
+      <entry name="gr1616" value="0x32335247" summary="[31:0] G:R 16:16 little endian"/>
+      <entry name="xrgb16161616f" value="0x48345258" summary="[63:0] x:R:G:B 16:16:16:16 little endian"/>
+      <entry name="xbgr16161616f" value="0x48344258" summary="[63:0] x:B:G:R 16:16:16:16 little endian"/>
+      <entry name="argb16161616f" value="0x48345241" summary="[63:0] A:R:G:B 16:16:16:16 little endian"/>
+      <entry name="abgr16161616f" value="0x48344241" summary="[63:0] A:B:G:R 16:16:16:16 little endian"/>
+      <entry name="xyuv8888" value="0x56555958" summary="[31:0] X:Y:Cb:Cr 8:8:8:8 little endian"/>
+      <entry name="vuy888" value="0x34325556" summary="[23:0] Cr:Cb:Y 8:8:8 little endian"/>
+      <entry name="vuy101010" value="0x30335556" summary="Y followed by U then V, 10:10:10. Non-linear modifier only"/>
+      <entry name="y210" value="0x30313259" summary="[63:0] Cr0:0:Y1:0:Cb0:0:Y0:0 10:6:10:6:10:6:10:6 little endian per 2 Y pixels"/>
+      <entry name="y212" value="0x32313259" summary="[63:0] Cr0:0:Y1:0:Cb0:0:Y0:0 12:4:12:4:12:4:12:4 little endian per 2 Y pixels"/>
+      <entry name="y216" value="0x36313259" summary="[63:0] Cr0:Y1:Cb0:Y0 16:16:16:16 little endian per 2 Y pixels"/>
+      <entry name="y410" value="0x30313459" summary="[31:0] A:Cr:Y:Cb 2:10:10:10 little endian"/>
+      <entry name="y412" value="0x32313459" summary="[63:0] A:0:Cr:0:Y:0:Cb:0 12:4:12:4:12:4:12:4 little endian"/>
+      <entry name="y416" value="0x36313459" summary="[63:0] A:Cr:Y:Cb 16:16:16:16 little endian"/>
+      <entry name="xvyu2101010" value="0x30335658" summary="[31:0] X:Cr:Y:Cb 2:10:10:10 little endian"/>
+      <entry name="xvyu12_16161616" value="0x36335658" summary="[63:0] X:0:Cr:0:Y:0:Cb:0 12:4:12:4:12:4:12:4 little endian"/>
+      <entry name="xvyu16161616" value="0x38345658" summary="[63:0] X:Cr:Y:Cb 16:16:16:16 little endian"/>
+      <entry name="y0l0" value="0x304c3059" summary="[63:0]   A3:A2:Y3:0:Cr0:0:Y2:0:A1:A0:Y1:0:Cb0:0:Y0:0  1:1:8:2:8:2:8:2:1:1:8:2:8:2:8:2 little endian"/>
+      <entry name="x0l0" value="0x304c3058" summary="[63:0]   X3:X2:Y3:0:Cr0:0:Y2:0:X1:X0:Y1:0:Cb0:0:Y0:0  1:1:8:2:8:2:8:2:1:1:8:2:8:2:8:2 little endian"/>
+      <entry name="y0l2" value="0x324c3059" summary="[63:0]   A3:A2:Y3:Cr0:Y2:A1:A0:Y1:Cb0:Y0  1:1:10:10:10:1:1:10:10:10 little endian"/>
+      <entry name="x0l2" value="0x324c3058" summary="[63:0]   X3:X2:Y3:Cr0:Y2:X1:X0:Y1:Cb0:Y0  1:1:10:10:10:1:1:10:10:10 little endian"/>
+      <entry name="yuv420_8bit" value="0x38305559"/>
+      <entry name="yuv420_10bit" value="0x30315559"/>
+      <entry name="xrgb8888_a8" value="0x38415258"/>
+      <entry name="xbgr8888_a8" value="0x38414258"/>
+      <entry name="rgbx8888_a8" value="0x38415852"/>
+      <entry name="bgrx8888_a8" value="0x38415842"/>
+      <entry name="rgb888_a8" value="0x38413852"/>
+      <entry name="bgr888_a8" value="0x38413842"/>
+      <entry name="rgb565_a8" value="0x38413552"/>
+      <entry name="bgr565_a8" value="0x38413542"/>
+      <entry name="nv24" value="0x3432564e" summary="non-subsampled Cr:Cb plane"/>
+      <entry name="nv42" value="0x3234564e" summary="non-subsampled Cb:Cr plane"/>
+      <entry name="p210" value="0x30313250" summary="2x1 subsampled Cr:Cb plane, 10 bit per channel"/>
+      <entry name="p010" value="0x30313050" summary="2x2 subsampled Cr:Cb plane 10 bits per channel"/>
+      <entry name="p012" value="0x32313050" summary="2x2 subsampled Cr:Cb plane 12 bits per channel"/>
+      <entry name="p016" value="0x36313050" summary="2x2 subsampled Cr:Cb plane 16 bits per channel"/>
+      <entry name="axbxgxrx106106106106" value="0x30314241" summary="[63:0] A:x:B:x:G:x:R:x 10:6:10:6:10:6:10:6 little endian"/>
+      <entry name="nv15" value="0x3531564e" summary="2x2 subsampled Cr:Cb plane"/>
+      <entry name="q410" value="0x30313451"/>
+      <entry name="q401" value="0x31303451"/>
+      <entry name="xrgb16161616" value="0x38345258" summary="[63:0] x:R:G:B 16:16:16:16 little endian"/>
+      <entry name="xbgr16161616" value="0x38344258" summary="[63:0] x:B:G:R 16:16:16:16 little endian"/>
+      <entry name="argb16161616" value="0x38345241" summary="[63:0] A:R:G:B 16:16:16:16 little endian"/>
+      <entry name="abgr16161616" value="0x38344241" summary="[63:0] A:B:G:R 16:16:16:16 little endian"/>
+    </enum>
+
+    <request name="create_pool">
+      <description summary="create a shm pool">
+	Create a new wl_shm_pool object.
+
+	The pool can be used to create shared memory based buffer
+	objects.  The server will mmap size bytes of the passed file
+	descriptor, to use as backing memory for the pool.
+      </description>
+      <arg name="id" type="new_id" interface="wl_shm_pool" summary="pool to create"/>
+      <arg name="fd" type="fd" summary="file descriptor for the pool"/>
+      <arg name="size" type="int" summary="pool size, in bytes"/>
+    </request>
+
+    <event name="format">
+      <description summary="pixel format description">
+	Informs the client about a valid pixel format that
+	can be used for buffers. Known formats include
+	argb8888 and xrgb8888.
+      </description>
+      <arg name="format" type="uint" enum="format" summary="buffer pixel format"/>
+    </event>
+  </interface>
+
+  <interface name="wl_buffer" version="1">
+    <description summary="content for a wl_surface">
+      A buffer provides the content for a wl_surface. Buffers are
+      created through factory interfaces such as wl_shm, wp_linux_buffer_params
+      (from the linux-dmabuf protocol extension) or similar. It has a width and
+      a height and can be attached to a wl_surface, but the mechanism by which a
+      client provides and updates the contents is defined by the buffer factory
+      interface.
+
+      If the buffer uses a format that has an alpha channel, the alpha channel
+      is assumed to be premultiplied in the color channels unless otherwise
+      specified.
+
+      Note, because wl_buffer objects are created from multiple independent
+      factory interfaces, the wl_buffer interface is frozen at version 1.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy a buffer">
+	Destroy a buffer. If and how you need to release the backing
+	storage is defined by the buffer factory interface.
+
+	For possible side-effects to a surface, see wl_surface.attach.
+      </description>
+    </request>
+
+    <event name="release">
+      <description summary="compositor releases buffer">
+	Sent when this wl_buffer is no longer used by the compositor.
+	The client is now free to reuse or destroy this buffer and its
+	backing storage.
+
+	If a client receives a release event before the frame callback
+	requested in the same wl_surface.commit that attaches this
+	wl_buffer to a surface, then the client is immediately free to
+	reuse the buffer and its backing storage, and does not need a
+	second buffer for the next surface content update. Typically
+	this is possible, when the compositor maintains a copy of the
+	wl_surface contents, e.g. as a GL texture. This is an important
+	optimization for GL(ES) compositors with wl_shm clients.
+      </description>
+    </event>
+  </interface>
+
+  <interface name="wl_data_offer" version="3">
+    <description summary="offer to transfer data">
+      A wl_data_offer represents a piece of data offered for transfer
+      by another client (the source client).  It is used by the
+      copy-and-paste and drag-and-drop mechanisms.  The offer
+      describes the different mime types that the data can be
+      converted to and provides the mechanism for transferring the
+      data directly from the source client.
+    </description>
+
+    <enum name="error">
+      <entry name="invalid_finish" value="0"
+	     summary="finish request was called untimely"/>
+      <entry name="invalid_action_mask" value="1"
+	     summary="action mask contains invalid values"/>
+      <entry name="invalid_action" value="2"
+	     summary="action argument has an invalid value"/>
+      <entry name="invalid_offer" value="3"
+	     summary="offer doesn't accept this request"/>
+    </enum>
+
+    <request name="accept">
+      <description summary="accept one of the offered mime types">
+	Indicate that the client can accept the given mime type, or
+	NULL for not accepted.
+
+	For objects of version 2 or older, this request is used by the
+	client to give feedback whether the client can receive the given
+	mime type, or NULL if none is accepted; the feedback does not
+	determine whether the drag-and-drop operation succeeds or not.
+
+	For objects of version 3 or newer, this request determines the
+	final result of the drag-and-drop operation. If the end result
+	is that no mime types were accepted, the drag-and-drop operation
+	will be cancelled and the corresponding drag source will receive
+	wl_data_source.cancelled. Clients may still use this event in
+	conjunction with wl_data_source.action for feedback.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the accept request"/>
+      <arg name="mime_type" type="string" allow-null="true" summary="mime type accepted by the client"/>
+    </request>
+
+    <request name="receive">
+      <description summary="request that the data is transferred">
+	To transfer the offered data, the client issues this request
+	and indicates the mime type it wants to receive.  The transfer
+	happens through the passed file descriptor (typically created
+	with the pipe system call).  The source client writes the data
+	in the mime type representation requested and then closes the
+	file descriptor.
+
+	The receiving client reads from the read end of the pipe until
+	EOF and then closes its end, at which point the transfer is
+	complete.
+
+	This request may happen multiple times for different mime types,
+	both before and after wl_data_device.drop. Drag-and-drop destination
+	clients may preemptively fetch data or examine it more closely to
+	determine acceptance.
+      </description>
+      <arg name="mime_type" type="string" summary="mime type desired by receiver"/>
+      <arg name="fd" type="fd" summary="file descriptor for data transfer"/>
+    </request>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy data offer">
+	Destroy the data offer.
+      </description>
+    </request>
+
+    <event name="offer">
+      <description summary="advertise offered mime type">
+	Sent immediately after creating the wl_data_offer object.  One
+	event per offered mime type.
+      </description>
+      <arg name="mime_type" type="string" summary="offered mime type"/>
+    </event>
+
+    <!-- Version 3 additions -->
+
+    <request name="finish" since="3">
+      <description summary="the offer will no longer be used">
+	Notifies the compositor that the drag destination successfully
+	finished the drag-and-drop operation.
+
+	Upon receiving this request, the compositor will emit
+	wl_data_source.dnd_finished on the drag source client.
+
+	It is a client error to perform other requests than
+	wl_data_offer.destroy after this one. It is also an error to perform
+	this request after a NULL mime type has been set in
+	wl_data_offer.accept or no action was received through
+	wl_data_offer.action.
+
+	If wl_data_offer.finish request is received for a non drag and drop
+	operation, the invalid_finish protocol error is raised.
+      </description>
+    </request>
+
+    <request name="set_actions" since="3">
+      <description summary="set the available/preferred drag-and-drop actions">
+	Sets the actions that the destination side client supports for
+	this operation. This request may trigger the emission of
+	wl_data_source.action and wl_data_offer.action events if the compositor
+	needs to change the selected action.
+
+	This request can be called multiple times throughout the
+	drag-and-drop operation, typically in response to wl_data_device.enter
+	or wl_data_device.motion events.
+
+	This request determines the final result of the drag-and-drop
+	operation. If the end result is that no action is accepted,
+	the drag source will receive wl_data_source.cancelled.
+
+	The dnd_actions argument must contain only values expressed in the
+	wl_data_device_manager.dnd_actions enum, and the preferred_action
+	argument must only contain one of those values set, otherwise it
+	will result in a protocol error.
+
+	While managing an "ask" action, the destination drag-and-drop client
+	may perform further wl_data_offer.receive requests, and is expected
+	to perform one last wl_data_offer.set_actions request with a preferred
+	action other than "ask" (and optionally wl_data_offer.accept) before
+	requesting wl_data_offer.finish, in order to convey the action selected
+	by the user. If the preferred action is not in the
+	wl_data_offer.source_actions mask, an error will be raised.
+
+	If the "ask" action is dismissed (e.g. user cancellation), the client
+	is expected to perform wl_data_offer.destroy right away.
+
+	This request can only be made on drag-and-drop offers, a protocol error
+	will be raised otherwise.
+      </description>
+      <arg name="dnd_actions" type="uint" summary="actions supported by the destination client"
+	   enum="wl_data_device_manager.dnd_action"/>
+      <arg name="preferred_action" type="uint" summary="action preferred by the destination client"
+	   enum="wl_data_device_manager.dnd_action"/>
+    </request>
+
+    <event name="source_actions" since="3">
+      <description summary="notify the source-side available actions">
+	This event indicates the actions offered by the data source. It
+	will be sent immediately after creating the wl_data_offer object,
+	or anytime the source side changes its offered actions through
+	wl_data_source.set_actions.
+      </description>
+      <arg name="source_actions" type="uint" summary="actions offered by the data source"
+	   enum="wl_data_device_manager.dnd_action"/>
+    </event>
+
+    <event name="action" since="3">
+      <description summary="notify the selected action">
+	This event indicates the action selected by the compositor after
+	matching the source/destination side actions. Only one action (or
+	none) will be offered here.
+
+	This event can be emitted multiple times during the drag-and-drop
+	operation in response to destination side action changes through
+	wl_data_offer.set_actions.
+
+	This event will no longer be emitted after wl_data_device.drop
+	happened on the drag-and-drop destination, the client must
+	honor the last action received, or the last preferred one set
+	through wl_data_offer.set_actions when handling an "ask" action.
+
+	Compositors may also change the selected action on the fly, mainly
+	in response to keyboard modifier changes during the drag-and-drop
+	operation.
+
+	The most recent action received is always the valid one. Prior to
+	receiving wl_data_device.drop, the chosen action may change (e.g.
+	due to keyboard modifiers being pressed). At the time of receiving
+	wl_data_device.drop the drag-and-drop destination must honor the
+	last action received.
+
+	Action changes may still happen after wl_data_device.drop,
+	especially on "ask" actions, where the drag-and-drop destination
+	may choose another action afterwards. Action changes happening
+	at this stage are always the result of inter-client negotiation, the
+	compositor shall no longer be able to induce a different action.
+
+	Upon "ask" actions, it is expected that the drag-and-drop destination
+	may potentially choose a different action and/or mime type,
+	based on wl_data_offer.source_actions and finally chosen by the
+	user (e.g. popping up a menu with the available options). The
+	final wl_data_offer.set_actions and wl_data_offer.accept requests
+	must happen before the call to wl_data_offer.finish.
+      </description>
+      <arg name="dnd_action" type="uint" summary="action selected by the compositor"
+	   enum="wl_data_device_manager.dnd_action"/>
+    </event>
+  </interface>
+
+  <interface name="wl_data_source" version="3">
+    <description summary="offer to transfer data">
+      The wl_data_source object is the source side of a wl_data_offer.
+      It is created by the source client in a data transfer and
+      provides a way to describe the offered data and a way to respond
+      to requests to transfer the data.
+    </description>
+
+    <enum name="error">
+      <entry name="invalid_action_mask" value="0"
+	     summary="action mask contains invalid values"/>
+      <entry name="invalid_source" value="1"
+	     summary="source doesn't accept this request"/>
+    </enum>
+
+    <request name="offer">
+      <description summary="add an offered mime type">
+	This request adds a mime type to the set of mime types
+	advertised to targets.  Can be called several times to offer
+	multiple types.
+      </description>
+      <arg name="mime_type" type="string" summary="mime type offered by the data source"/>
+    </request>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the data source">
+	Destroy the data source.
+      </description>
+    </request>
+
+    <event name="target">
+      <description summary="a target accepts an offered mime type">
+	Sent when a target accepts pointer_focus or motion events.  If
+	a target does not accept any of the offered types, type is NULL.
+
+	Used for feedback during drag-and-drop.
+      </description>
+      <arg name="mime_type" type="string" allow-null="true" summary="mime type accepted by the target"/>
+    </event>
+
+    <event name="send">
+      <description summary="send the data">
+	Request for data from the client.  Send the data as the
+	specified mime type over the passed file descriptor, then
+	close it.
+      </description>
+      <arg name="mime_type" type="string" summary="mime type for the data"/>
+      <arg name="fd" type="fd" summary="file descriptor for the data"/>
+    </event>
+
+    <event name="cancelled">
+      <description summary="selection was cancelled">
+	This data source is no longer valid. There are several reasons why
+	this could happen:
+
+	- The data source has been replaced by another data source.
+	- The drag-and-drop operation was performed, but the drop destination
+	  did not accept any of the mime types offered through
+	  wl_data_source.target.
+	- The drag-and-drop operation was performed, but the drop destination
+	  did not select any of the actions present in the mask offered through
+	  wl_data_source.action.
+	- The drag-and-drop operation was performed but didn't happen over a
+	  surface.
+	- The compositor cancelled the drag-and-drop operation (e.g. compositor
+	  dependent timeouts to avoid stale drag-and-drop transfers).
+
+	The client should clean up and destroy this data source.
+
+	For objects of version 2 or older, wl_data_source.cancelled will
+	only be emitted if the data source was replaced by another data
+	source.
+      </description>
+    </event>
+
+    <!-- Version 3 additions -->
+
+    <request name="set_actions" since="3">
+      <description summary="set the available drag-and-drop actions">
+	Sets the actions that the source side client supports for this
+	operation. This request may trigger wl_data_source.action and
+	wl_data_offer.action events if the compositor needs to change the
+	selected action.
+
+	The dnd_actions argument must contain only values expressed in the
+	wl_data_device_manager.dnd_actions enum, otherwise it will result
+	in a protocol error.
+
+	This request must be made once only, and can only be made on sources
+	used in drag-and-drop, so it must be performed before
+	wl_data_device.start_drag. Attempting to use the source other than
+	for drag-and-drop will raise a protocol error.
+      </description>
+      <arg name="dnd_actions" type="uint" summary="actions supported by the data source"
+	   enum="wl_data_device_manager.dnd_action"/>
+    </request>
+
+    <event name="dnd_drop_performed" since="3">
+      <description summary="the drag-and-drop operation physically finished">
+	The user performed the drop action. This event does not indicate
+	acceptance, wl_data_source.cancelled may still be emitted afterwards
+	if the drop destination does not accept any mime type.
+
+	However, this event might however not be received if the compositor
+	cancelled the drag-and-drop operation before this event could happen.
+
+	Note that the data_source may still be used in the future and should
+	not be destroyed here.
+      </description>
+    </event>
+
+    <event name="dnd_finished" since="3">
+      <description summary="the drag-and-drop operation concluded">
+	The drop destination finished interoperating with this data
+	source, so the client is now free to destroy this data source and
+	free all associated data.
+
+	If the action used to perform the operation was "move", the
+	source can now delete the transferred data.
+      </description>
+    </event>
+
+    <event name="action" since="3">
+      <description summary="notify the selected action">
+	This event indicates the action selected by the compositor after
+	matching the source/destination side actions. Only one action (or
+	none) will be offered here.
+
+	This event can be emitted multiple times during the drag-and-drop
+	operation, mainly in response to destination side changes through
+	wl_data_offer.set_actions, and as the data device enters/leaves
+	surfaces.
+
+	It is only possible to receive this event after
+	wl_data_source.dnd_drop_performed if the drag-and-drop operation
+	ended in an "ask" action, in which case the final wl_data_source.action
+	event will happen immediately before wl_data_source.dnd_finished.
+
+	Compositors may also change the selected action on the fly, mainly
+	in response to keyboard modifier changes during the drag-and-drop
+	operation.
+
+	The most recent action received is always the valid one. The chosen
+	action may change alongside negotiation (e.g. an "ask" action can turn
+	into a "move" operation), so the effects of the final action must
+	always be applied in wl_data_offer.dnd_finished.
+
+	Clients can trigger cursor surface changes from this point, so
+	they reflect the current action.
+      </description>
+      <arg name="dnd_action" type="uint" summary="action selected by the compositor"
+	   enum="wl_data_device_manager.dnd_action"/>
+    </event>
+  </interface>
+
+  <interface name="wl_data_device" version="3">
+    <description summary="data transfer device">
+      There is one wl_data_device per seat which can be obtained
+      from the global wl_data_device_manager singleton.
+
+      A wl_data_device provides access to inter-client data transfer
+      mechanisms such as copy-and-paste and drag-and-drop.
+    </description>
+
+    <enum name="error">
+      <entry name="role" value="0" summary="given wl_surface has another role"/>
+    </enum>
+
+    <request name="start_drag">
+      <description summary="start drag-and-drop operation">
+	This request asks the compositor to start a drag-and-drop
+	operation on behalf of the client.
+
+	The source argument is the data source that provides the data
+	for the eventual data transfer. If source is NULL, enter, leave
+	and motion events are sent only to the client that initiated the
+	drag and the client is expected to handle the data passing
+	internally. If source is destroyed, the drag-and-drop session will be
+	cancelled.
+
+	The origin surface is the surface where the drag originates and
+	the client must have an active implicit grab that matches the
+	serial.
+
+	The icon surface is an optional (can be NULL) surface that
+	provides an icon to be moved around with the cursor.  Initially,
+	the top-left corner of the icon surface is placed at the cursor
+	hotspot, but subsequent wl_surface.attach request can move the
+	relative position. Attach requests must be confirmed with
+	wl_surface.commit as usual. The icon surface is given the role of
+	a drag-and-drop icon. If the icon surface already has another role,
+	it raises a protocol error.
+
+	The input region is ignored for wl_surfaces with the role of a
+	drag-and-drop icon.
+      </description>
+      <arg name="source" type="object" interface="wl_data_source" allow-null="true" summary="data source for the eventual transfer"/>
+      <arg name="origin" type="object" interface="wl_surface" summary="surface where the drag originates"/>
+      <arg name="icon" type="object" interface="wl_surface" allow-null="true" summary="drag-and-drop icon surface"/>
+      <arg name="serial" type="uint" summary="serial number of the implicit grab on the origin"/>
+    </request>
+
+    <request name="set_selection">
+      <description summary="copy data to the selection">
+	This request asks the compositor to set the selection
+	to the data from the source on behalf of the client.
+
+	To unset the selection, set the source to NULL.
+      </description>
+      <arg name="source" type="object" interface="wl_data_source" allow-null="true" summary="data source for the selection"/>
+      <arg name="serial" type="uint" summary="serial number of the event that triggered this request"/>
+    </request>
+
+    <event name="data_offer">
+      <description summary="introduce a new wl_data_offer">
+	The data_offer event introduces a new wl_data_offer object,
+	which will subsequently be used in either the
+	data_device.enter event (for drag-and-drop) or the
+	data_device.selection event (for selections).  Immediately
+	following the data_device.data_offer event, the new data_offer
+	object will send out data_offer.offer events to describe the
+	mime types it offers.
+      </description>
+      <arg name="id" type="new_id" interface="wl_data_offer" summary="the new data_offer object"/>
+    </event>
+
+    <event name="enter">
+      <description summary="initiate drag-and-drop session">
+	This event is sent when an active drag-and-drop pointer enters
+	a surface owned by the client.  The position of the pointer at
+	enter time is provided by the x and y arguments, in surface-local
+	coordinates.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the enter event"/>
+      <arg name="surface" type="object" interface="wl_surface" summary="client surface entered"/>
+      <arg name="x" type="fixed" summary="surface-local x coordinate"/>
+      <arg name="y" type="fixed" summary="surface-local y coordinate"/>
+      <arg name="id" type="object" interface="wl_data_offer" allow-null="true"
+	   summary="source data_offer object"/>
+    </event>
+
+    <event name="leave">
+      <description summary="end drag-and-drop session">
+	This event is sent when the drag-and-drop pointer leaves the
+	surface and the session ends.  The client must destroy the
+	wl_data_offer introduced at enter time at this point.
+      </description>
+    </event>
+
+    <event name="motion">
+      <description summary="drag-and-drop session motion">
+	This event is sent when the drag-and-drop pointer moves within
+	the currently focused surface. The new position of the pointer
+	is provided by the x and y arguments, in surface-local
+	coordinates.
+      </description>
+      <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
+      <arg name="x" type="fixed" summary="surface-local x coordinate"/>
+      <arg name="y" type="fixed" summary="surface-local y coordinate"/>
+    </event>
+
+    <event name="drop">
+      <description summary="end drag-and-drop session successfully">
+	The event is sent when a drag-and-drop operation is ended
+	because the implicit grab is removed.
+
+	The drag-and-drop destination is expected to honor the last action
+	received through wl_data_offer.action, if the resulting action is
+	"copy" or "move", the destination can still perform
+	wl_data_offer.receive requests, and is expected to end all
+	transfers with a wl_data_offer.finish request.
+
+	If the resulting action is "ask", the action will not be considered
+	final. The drag-and-drop destination is expected to perform one last
+	wl_data_offer.set_actions request, or wl_data_offer.destroy in order
+	to cancel the operation.
+      </description>
+    </event>
+
+    <event name="selection">
+      <description summary="advertise new selection">
+	The selection event is sent out to notify the client of a new
+	wl_data_offer for the selection for this device.  The
+	data_device.data_offer and the data_offer.offer events are
+	sent out immediately before this event to introduce the data
+	offer object.  The selection event is sent to a client
+	immediately before receiving keyboard focus and when a new
+	selection is set while the client has keyboard focus.  The
+	data_offer is valid until a new data_offer or NULL is received
+	or until the client loses keyboard focus.  Switching surface with
+	keyboard focus within the same client doesn't mean a new selection
+	will be sent.  The client must destroy the previous selection
+	data_offer, if any, upon receiving this event.
+      </description>
+      <arg name="id" type="object" interface="wl_data_offer" allow-null="true"
+	   summary="selection data_offer object"/>
+    </event>
+
+    <!-- Version 2 additions -->
+
+    <request name="release" type="destructor" since="2">
+      <description summary="destroy data device">
+	This request destroys the data device.
+      </description>
+    </request>
+  </interface>
+
+  <interface name="wl_data_device_manager" version="3">
+    <description summary="data transfer interface">
+      The wl_data_device_manager is a singleton global object that
+      provides access to inter-client data transfer mechanisms such as
+      copy-and-paste and drag-and-drop.  These mechanisms are tied to
+      a wl_seat and this interface lets a client get a wl_data_device
+      corresponding to a wl_seat.
+
+      Depending on the version bound, the objects created from the bound
+      wl_data_device_manager object will have different requirements for
+      functioning properly. See wl_data_source.set_actions,
+      wl_data_offer.accept and wl_data_offer.finish for details.
+    </description>
+
+    <request name="create_data_source">
+      <description summary="create a new data source">
+	Create a new data source.
+      </description>
+      <arg name="id" type="new_id" interface="wl_data_source" summary="data source to create"/>
+    </request>
+
+    <request name="get_data_device">
+      <description summary="create a new data device">
+	Create a new data device for a given seat.
+      </description>
+      <arg name="id" type="new_id" interface="wl_data_device" summary="data device to create"/>
+      <arg name="seat" type="object" interface="wl_seat" summary="seat associated with the data device"/>
+    </request>
+
+    <!-- Version 3 additions -->
+
+    <enum name="dnd_action" bitfield="true" since="3">
+      <description summary="drag and drop actions">
+	This is a bitmask of the available/preferred actions in a
+	drag-and-drop operation.
+
+	In the compositor, the selected action is a result of matching the
+	actions offered by the source and destination sides.  "action" events
+	with a "none" action will be sent to both source and destination if
+	there is no match. All further checks will effectively happen on
+	(source actions ∩ destination actions).
+
+	In addition, compositors may also pick different actions in
+	reaction to key modifiers being pressed. One common design that
+	is used in major toolkits (and the behavior recommended for
+	compositors) is:
+
+	- If no modifiers are pressed, the first match (in bit order)
+	  will be used.
+	- Pressing Shift selects "move", if enabled in the mask.
+	- Pressing Control selects "copy", if enabled in the mask.
+
+	Behavior beyond that is considered implementation-dependent.
+	Compositors may for example bind other modifiers (like Alt/Meta)
+	or drags initiated with other buttons than BTN_LEFT to specific
+	actions (e.g. "ask").
+      </description>
+      <entry name="none" value="0" summary="no action"/>
+      <entry name="copy" value="1" summary="copy action"/>
+      <entry name="move" value="2" summary="move action"/>
+      <entry name="ask" value="4" summary="ask action"/>
+    </enum>
+  </interface>
+
+  <interface name="wl_shell" version="1">
+    <description summary="create desktop-style surfaces">
+      This interface is implemented by servers that provide
+      desktop-style user interfaces.
+
+      It allows clients to associate a wl_shell_surface with
+      a basic surface.
+
+      Note! This protocol is deprecated and not intended for production use.
+      For desktop-style user interfaces, use xdg_shell. Compositors and clients
+      should not implement this interface.
+    </description>
+
+    <enum name="error">
+      <entry name="role" value="0" summary="given wl_surface has another role"/>
+    </enum>
+
+    <request name="get_shell_surface">
+      <description summary="create a shell surface from a surface">
+	Create a shell surface for an existing surface. This gives
+	the wl_surface the role of a shell surface. If the wl_surface
+	already has another role, it raises a protocol error.
+
+	Only one shell surface can be associated with a given surface.
+      </description>
+      <arg name="id" type="new_id" interface="wl_shell_surface" summary="shell surface to create"/>
+      <arg name="surface" type="object" interface="wl_surface" summary="surface to be given the shell surface role"/>
+    </request>
+  </interface>
+
+  <interface name="wl_shell_surface" version="1">
+    <description summary="desktop-style metadata interface">
+      An interface that may be implemented by a wl_surface, for
+      implementations that provide a desktop-style user interface.
+
+      It provides requests to treat surfaces like toplevel, fullscreen
+      or popup windows, move, resize or maximize them, associate
+      metadata like title and class, etc.
+
+      On the server side the object is automatically destroyed when
+      the related wl_surface is destroyed. On the client side,
+      wl_shell_surface_destroy() must be called before destroying
+      the wl_surface object.
+    </description>
+
+    <request name="pong">
+      <description summary="respond to a ping event">
+	A client must respond to a ping event with a pong request or
+	the client may be deemed unresponsive.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the ping event"/>
+    </request>
+
+    <request name="move">
+      <description summary="start an interactive move">
+	Start a pointer-driven move of the surface.
+
+	This request must be used in response to a button press event.
+	The server may ignore move requests depending on the state of
+	the surface (e.g. fullscreen or maximized).
+      </description>
+      <arg name="seat" type="object" interface="wl_seat" summary="seat whose pointer is used"/>
+      <arg name="serial" type="uint" summary="serial number of the implicit grab on the pointer"/>
+    </request>
+
+    <enum name="resize" bitfield="true">
+      <description summary="edge values for resizing">
+	These values are used to indicate which edge of a surface
+	is being dragged in a resize operation. The server may
+	use this information to adapt its behavior, e.g. choose
+	an appropriate cursor image.
+      </description>
+      <entry name="none" value="0" summary="no edge"/>
+      <entry name="top" value="1" summary="top edge"/>
+      <entry name="bottom" value="2" summary="bottom edge"/>
+      <entry name="left" value="4" summary="left edge"/>
+      <entry name="top_left" value="5" summary="top and left edges"/>
+      <entry name="bottom_left" value="6" summary="bottom and left edges"/>
+      <entry name="right" value="8" summary="right edge"/>
+      <entry name="top_right" value="9" summary="top and right edges"/>
+      <entry name="bottom_right" value="10" summary="bottom and right edges"/>
+    </enum>
+
+    <request name="resize">
+      <description summary="start an interactive resize">
+	Start a pointer-driven resizing of the surface.
+
+	This request must be used in response to a button press event.
+	The server may ignore resize requests depending on the state of
+	the surface (e.g. fullscreen or maximized).
+      </description>
+      <arg name="seat" type="object" interface="wl_seat" summary="seat whose pointer is used"/>
+      <arg name="serial" type="uint" summary="serial number of the implicit grab on the pointer"/>
+      <arg name="edges" type="uint" enum="resize" summary="which edge or corner is being dragged"/>
+    </request>
+
+    <request name="set_toplevel">
+      <description summary="make the surface a toplevel surface">
+	Map the surface as a toplevel surface.
+
+	A toplevel surface is not fullscreen, maximized or transient.
+      </description>
+    </request>
+
+    <enum name="transient" bitfield="true">
+      <description summary="details of transient behaviour">
+	These flags specify details of the expected behaviour
+	of transient surfaces. Used in the set_transient request.
+      </description>
+      <entry name="inactive" value="0x1" summary="do not set keyboard focus"/>
+    </enum>
+
+    <request name="set_transient">
+      <description summary="make the surface a transient surface">
+	Map the surface relative to an existing surface.
+
+	The x and y arguments specify the location of the upper left
+	corner of the surface relative to the upper left corner of the
+	parent surface, in surface-local coordinates.
+
+	The flags argument controls details of the transient behaviour.
+      </description>
+      <arg name="parent" type="object" interface="wl_surface" summary="parent surface"/>
+      <arg name="x" type="int" summary="surface-local x coordinate"/>
+      <arg name="y" type="int" summary="surface-local y coordinate"/>
+      <arg name="flags" type="uint" enum="transient" summary="transient surface behavior"/>
+    </request>
+
+    <enum name="fullscreen_method">
+      <description summary="different method to set the surface fullscreen">
+	Hints to indicate to the compositor how to deal with a conflict
+	between the dimensions of the surface and the dimensions of the
+	output. The compositor is free to ignore this parameter.
+      </description>
+      <entry name="default" value="0" summary="no preference, apply default policy"/>
+      <entry name="scale" value="1" summary="scale, preserve the surface's aspect ratio and center on output"/>
+      <entry name="driver" value="2" summary="switch output mode to the smallest mode that can fit the surface, add black borders to compensate size mismatch"/>
+      <entry name="fill" value="3" summary="no upscaling, center on output and add black borders to compensate size mismatch"/>
+    </enum>
+
+    <request name="set_fullscreen">
+      <description summary="make the surface a fullscreen surface">
+	Map the surface as a fullscreen surface.
+
+	If an output parameter is given then the surface will be made
+	fullscreen on that output. If the client does not specify the
+	output then the compositor will apply its policy - usually
+	choosing the output on which the surface has the biggest surface
+	area.
+
+	The client may specify a method to resolve a size conflict
+	between the output size and the surface size - this is provided
+	through the method parameter.
+
+	The framerate parameter is used only when the method is set
+	to "driver", to indicate the preferred framerate. A value of 0
+	indicates that the client does not care about framerate.  The
+	framerate is specified in mHz, that is framerate of 60000 is 60Hz.
+
+	A method of "scale" or "driver" implies a scaling operation of
+	the surface, either via a direct scaling operation or a change of
+	the output mode. This will override any kind of output scaling, so
+	that mapping a surface with a buffer size equal to the mode can
+	fill the screen independent of buffer_scale.
+
+	A method of "fill" means we don't scale up the buffer, however
+	any output scale is applied. This means that you may run into
+	an edge case where the application maps a buffer with the same
+	size of the output mode but buffer_scale 1 (thus making a
+	surface larger than the output). In this case it is allowed to
+	downscale the results to fit the screen.
+
+	The compositor must reply to this request with a configure event
+	with the dimensions for the output on which the surface will
+	be made fullscreen.
+      </description>
+      <arg name="method" type="uint" enum="fullscreen_method" summary="method for resolving size conflict"/>
+      <arg name="framerate" type="uint" summary="framerate in mHz"/>
+      <arg name="output" type="object" interface="wl_output" allow-null="true"
+	   summary="output on which the surface is to be fullscreen"/>
+    </request>
+
+    <request name="set_popup">
+      <description summary="make the surface a popup surface">
+	Map the surface as a popup.
+
+	A popup surface is a transient surface with an added pointer
+	grab.
+
+	An existing implicit grab will be changed to owner-events mode,
+	and the popup grab will continue after the implicit grab ends
+	(i.e. releasing the mouse button does not cause the popup to
+	be unmapped).
+
+	The popup grab continues until the window is destroyed or a
+	mouse button is pressed in any other client's window. A click
+	in any of the client's surfaces is reported as normal, however,
+	clicks in other clients' surfaces will be discarded and trigger
+	the callback.
+
+	The x and y arguments specify the location of the upper left
+	corner of the surface relative to the upper left corner of the
+	parent surface, in surface-local coordinates.
+      </description>
+      <arg name="seat" type="object" interface="wl_seat" summary="seat whose pointer is used"/>
+      <arg name="serial" type="uint" summary="serial number of the implicit grab on the pointer"/>
+      <arg name="parent" type="object" interface="wl_surface" summary="parent surface"/>
+      <arg name="x" type="int" summary="surface-local x coordinate"/>
+      <arg name="y" type="int" summary="surface-local y coordinate"/>
+      <arg name="flags" type="uint" enum="transient" summary="transient surface behavior"/>
+    </request>
+
+    <request name="set_maximized">
+      <description summary="make the surface a maximized surface">
+	Map the surface as a maximized surface.
+
+	If an output parameter is given then the surface will be
+	maximized on that output. If the client does not specify the
+	output then the compositor will apply its policy - usually
+	choosing the output on which the surface has the biggest surface
+	area.
+
+	The compositor will reply with a configure event telling
+	the expected new surface size. The operation is completed
+	on the next buffer attach to this surface.
+
+	A maximized surface typically fills the entire output it is
+	bound to, except for desktop elements such as panels. This is
+	the main difference between a maximized shell surface and a
+	fullscreen shell surface.
+
+	The details depend on the compositor implementation.
+      </description>
+      <arg name="output" type="object" interface="wl_output" allow-null="true"
+	   summary="output on which the surface is to be maximized"/>
+    </request>
+
+    <request name="set_title">
+      <description summary="set surface title">
+	Set a short title for the surface.
+
+	This string may be used to identify the surface in a task bar,
+	window list, or other user interface elements provided by the
+	compositor.
+
+	The string must be encoded in UTF-8.
+      </description>
+      <arg name="title" type="string" summary="surface title"/>
+    </request>
+
+    <request name="set_class">
+      <description summary="set surface class">
+	Set a class for the surface.
+
+	The surface class identifies the general class of applications
+	to which the surface belongs. A common convention is to use the
+	file name (or the full path if it is a non-standard location) of
+	the application's .desktop file as the class.
+      </description>
+      <arg name="class_" type="string" summary="surface class"/>
+    </request>
+
+    <event name="ping">
+      <description summary="ping client">
+	Ping a client to check if it is receiving events and sending
+	requests. A client is expected to reply with a pong request.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the ping"/>
+    </event>
+
+    <event name="configure">
+      <description summary="suggest resize">
+	The configure event asks the client to resize its surface.
+
+	The size is a hint, in the sense that the client is free to
+	ignore it if it doesn't resize, pick a smaller size (to
+	satisfy aspect ratio or resize in steps of NxM pixels).
+
+	The edges parameter provides a hint about how the surface
+	was resized. The client may use this information to decide
+	how to adjust its content to the new size (e.g. a scrolling
+	area might adjust its content position to leave the viewable
+	content unmoved).
+
+	The client is free to dismiss all but the last configure
+	event it received.
+
+	The width and height arguments specify the size of the window
+	in surface-local coordinates.
+      </description>
+      <arg name="edges" type="uint" enum="resize" summary="how the surface was resized"/>
+      <arg name="width" type="int" summary="new width of the surface"/>
+      <arg name="height" type="int" summary="new height of the surface"/>
+    </event>
+
+    <event name="popup_done">
+      <description summary="popup interaction is done">
+	The popup_done event is sent out when a popup grab is broken,
+	that is, when the user clicks a surface that doesn't belong
+	to the client owning the popup surface.
+      </description>
+    </event>
+  </interface>
+
+  <interface name="wl_surface" version="6">
+    <description summary="an onscreen surface">
+      A surface is a rectangular area that may be displayed on zero
+      or more outputs, and shown any number of times at the compositor's
+      discretion. They can present wl_buffers, receive user input, and
+      define a local coordinate system.
+
+      The size of a surface (and relative positions on it) is described
+      in surface-local coordinates, which may differ from the buffer
+      coordinates of the pixel content, in case a buffer_transform
+      or a buffer_scale is used.
+
+      A surface without a "role" is fairly useless: a compositor does
+      not know where, when or how to present it. The role is the
+      purpose of a wl_surface. Examples of roles are a cursor for a
+      pointer (as set by wl_pointer.set_cursor), a drag icon
+      (wl_data_device.start_drag), a sub-surface
+      (wl_subcompositor.get_subsurface), and a window as defined by a
+      shell protocol (e.g. wl_shell.get_shell_surface).
+
+      A surface can have only one role at a time. Initially a
+      wl_surface does not have a role. Once a wl_surface is given a
+      role, it is set permanently for the whole lifetime of the
+      wl_surface object. Giving the current role again is allowed,
+      unless explicitly forbidden by the relevant interface
+      specification.
+
+      Surface roles are given by requests in other interfaces such as
+      wl_pointer.set_cursor. The request should explicitly mention
+      that this request gives a role to a wl_surface. Often, this
+      request also creates a new protocol object that represents the
+      role and adds additional functionality to wl_surface. When a
+      client wants to destroy a wl_surface, they must destroy this role
+      object before the wl_surface, otherwise a defunct_role_object error is
+      sent.
+
+      Destroying the role object does not remove the role from the
+      wl_surface, but it may stop the wl_surface from "playing the role".
+      For instance, if a wl_subsurface object is destroyed, the wl_surface
+      it was created for will be unmapped and forget its position and
+      z-order. It is allowed to create a wl_subsurface for the same
+      wl_surface again, but it is not allowed to use the wl_surface as
+      a cursor (cursor is a different role than sub-surface, and role
+      switching is not allowed).
+    </description>
+
+    <enum name="error">
+      <description summary="wl_surface error values">
+	These errors can be emitted in response to wl_surface requests.
+      </description>
+      <entry name="invalid_scale" value="0" summary="buffer scale value is invalid"/>
+      <entry name="invalid_transform" value="1" summary="buffer transform value is invalid"/>
+      <entry name="invalid_size" value="2" summary="buffer size is invalid"/>
+      <entry name="invalid_offset" value="3" summary="buffer offset is invalid"/>
+      <entry name="defunct_role_object" value="4"
+             summary="surface was destroyed before its role object"/>
+    </enum>
+
+    <request name="destroy" type="destructor">
+      <description summary="delete surface">
+	Deletes the surface and invalidates its object ID.
+      </description>
+    </request>
+
+    <request name="attach">
+      <description summary="set the surface contents">
+	Set a buffer as the content of this surface.
+
+	The new size of the surface is calculated based on the buffer
+	size transformed by the inverse buffer_transform and the
+	inverse buffer_scale. This means that at commit time the supplied
+	buffer size must be an integer multiple of the buffer_scale. If
+	that's not the case, an invalid_size error is sent.
+
+	The x and y arguments specify the location of the new pending
+	buffer's upper left corner, relative to the current buffer's upper
+	left corner, in surface-local coordinates. In other words, the
+	x and y, combined with the new surface size define in which
+	directions the surface's size changes. Setting anything other than 0
+	as x and y arguments is discouraged, and should instead be replaced
+	with using the separate wl_surface.offset request.
+
+	When the bound wl_surface version is 5 or higher, passing any
+	non-zero x or y is a protocol violation, and will result in an
+        'invalid_offset' error being raised. The x and y arguments are ignored
+        and do not change the pending state. To achieve equivalent semantics,
+        use wl_surface.offset.
+
+	Surface contents are double-buffered state, see wl_surface.commit.
+
+	The initial surface contents are void; there is no content.
+	wl_surface.attach assigns the given wl_buffer as the pending
+	wl_buffer. wl_surface.commit makes the pending wl_buffer the new
+	surface contents, and the size of the surface becomes the size
+	calculated from the wl_buffer, as described above. After commit,
+	there is no pending buffer until the next attach.
+
+	Committing a pending wl_buffer allows the compositor to read the
+	pixels in the wl_buffer. The compositor may access the pixels at
+	any time after the wl_surface.commit request. When the compositor
+	will not access the pixels anymore, it will send the
+	wl_buffer.release event. Only after receiving wl_buffer.release,
+	the client may reuse the wl_buffer. A wl_buffer that has been
+	attached and then replaced by another attach instead of committed
+	will not receive a release event, and is not used by the
+	compositor.
+
+	If a pending wl_buffer has been committed to more than one wl_surface,
+	the delivery of wl_buffer.release events becomes undefined. A well
+	behaved client should not rely on wl_buffer.release events in this
+	case. Alternatively, a client could create multiple wl_buffer objects
+	from the same backing storage or use wp_linux_buffer_release.
+
+	Destroying the wl_buffer after wl_buffer.release does not change
+	the surface contents. Destroying the wl_buffer before wl_buffer.release
+	is allowed as long as the underlying buffer storage isn't re-used (this
+	can happen e.g. on client process termination). However, if the client
+	destroys the wl_buffer before receiving the wl_buffer.release event and
+	mutates the underlying buffer storage, the surface contents become
+	undefined immediately.
+
+	If wl_surface.attach is sent with a NULL wl_buffer, the
+	following wl_surface.commit will remove the surface content.
+      </description>
+      <arg name="buffer" type="object" interface="wl_buffer" allow-null="true"
+	   summary="buffer of surface contents"/>
+      <arg name="x" type="int" summary="surface-local x coordinate"/>
+      <arg name="y" type="int" summary="surface-local y coordinate"/>
+    </request>
+
+    <request name="damage">
+      <description summary="mark part of the surface damaged">
+	This request is used to describe the regions where the pending
+	buffer is different from the current surface contents, and where
+	the surface therefore needs to be repainted. The compositor
+	ignores the parts of the damage that fall outside of the surface.
+
+	Damage is double-buffered state, see wl_surface.commit.
+
+	The damage rectangle is specified in surface-local coordinates,
+	where x and y specify the upper left corner of the damage rectangle.
+
+	The initial value for pending damage is empty: no damage.
+	wl_surface.damage adds pending damage: the new pending damage
+	is the union of old pending damage and the given rectangle.
+
+	wl_surface.commit assigns pending damage as the current damage,
+	and clears pending damage. The server will clear the current
+	damage as it repaints the surface.
+
+	Note! New clients should not use this request. Instead damage can be
+	posted with wl_surface.damage_buffer which uses buffer coordinates
+	instead of surface coordinates.
+      </description>
+      <arg name="x" type="int" summary="surface-local x coordinate"/>
+      <arg name="y" type="int" summary="surface-local y coordinate"/>
+      <arg name="width" type="int" summary="width of damage rectangle"/>
+      <arg name="height" type="int" summary="height of damage rectangle"/>
+    </request>
+
+    <request name="frame">
+      <description summary="request a frame throttling hint">
+	Request a notification when it is a good time to start drawing a new
+	frame, by creating a frame callback. This is useful for throttling
+	redrawing operations, and driving animations.
+
+	When a client is animating on a wl_surface, it can use the 'frame'
+	request to get notified when it is a good time to draw and commit the
+	next frame of animation. If the client commits an update earlier than
+	that, it is likely that some updates will not make it to the display,
+	and the client is wasting resources by drawing too often.
+
+	The frame request will take effect on the next wl_surface.commit.
+	The notification will only be posted for one frame unless
+	requested again. For a wl_surface, the notifications are posted in
+	the order the frame requests were committed.
+
+	The server must send the notifications so that a client
+	will not send excessive updates, while still allowing
+	the highest possible update rate for clients that wait for the reply
+	before drawing again. The server should give some time for the client
+	to draw and commit after sending the frame callback events to let it
+	hit the next output refresh.
+
+	A server should avoid signaling the frame callbacks if the
+	surface is not visible in any way, e.g. the surface is off-screen,
+	or completely obscured by other opaque surfaces.
+
+	The object returned by this request will be destroyed by the
+	compositor after the callback is fired and as such the client must not
+	attempt to use it after that point.
+
+	The callback_data passed in the callback is the current time, in
+	milliseconds, with an undefined base.
+      </description>
+      <arg name="callback" type="new_id" interface="wl_callback" summary="callback object for the frame request"/>
+    </request>
+
+    <request name="set_opaque_region">
+      <description summary="set opaque region">
+	This request sets the region of the surface that contains
+	opaque content.
+
+	The opaque region is an optimization hint for the compositor
+	that lets it optimize the redrawing of content behind opaque
+	regions.  Setting an opaque region is not required for correct
+	behaviour, but marking transparent content as opaque will result
+	in repaint artifacts.
+
+	The opaque region is specified in surface-local coordinates.
+
+	The compositor ignores the parts of the opaque region that fall
+	outside of the surface.
+
+	Opaque region is double-buffered state, see wl_surface.commit.
+
+	wl_surface.set_opaque_region changes the pending opaque region.
+	wl_surface.commit copies the pending region to the current region.
+	Otherwise, the pending and current regions are never changed.
+
+	The initial value for an opaque region is empty. Setting the pending
+	opaque region has copy semantics, and the wl_region object can be
+	destroyed immediately. A NULL wl_region causes the pending opaque
+	region to be set to empty.
+      </description>
+      <arg name="region" type="object" interface="wl_region" allow-null="true"
+	   summary="opaque region of the surface"/>
+    </request>
+
+    <request name="set_input_region">
+      <description summary="set input region">
+	This request sets the region of the surface that can receive
+	pointer and touch events.
+
+	Input events happening outside of this region will try the next
+	surface in the server surface stack. The compositor ignores the
+	parts of the input region that fall outside of the surface.
+
+	The input region is specified in surface-local coordinates.
+
+	Input region is double-buffered state, see wl_surface.commit.
+
+	wl_surface.set_input_region changes the pending input region.
+	wl_surface.commit copies the pending region to the current region.
+	Otherwise the pending and current regions are never changed,
+	except cursor and icon surfaces are special cases, see
+	wl_pointer.set_cursor and wl_data_device.start_drag.
+
+	The initial value for an input region is infinite. That means the
+	whole surface will accept input. Setting the pending input region
+	has copy semantics, and the wl_region object can be destroyed
+	immediately. A NULL wl_region causes the input region to be set
+	to infinite.
+      </description>
+      <arg name="region" type="object" interface="wl_region" allow-null="true"
+	   summary="input region of the surface"/>
+    </request>
+
+    <request name="commit">
+      <description summary="commit pending surface state">
+	Surface state (input, opaque, and damage regions, attached buffers,
+	etc.) is double-buffered. Protocol requests modify the pending state,
+	as opposed to the current state in use by the compositor. A commit
+	request atomically applies all pending state, replacing the current
+	state. After commit, the new pending state is as documented for each
+	related request.
+
+	On commit, a pending wl_buffer is applied first, and all other state
+	second. This means that all coordinates in double-buffered state are
+	relative to the new wl_buffer coming into use, except for
+	wl_surface.attach itself. If there is no pending wl_buffer, the
+	coordinates are relative to the current surface contents.
+
+	All requests that need a commit to become effective are documented
+	to affect double-buffered state.
+
+	Other interfaces may add further double-buffered surface state.
+      </description>
+    </request>
+
+    <event name="enter">
+      <description summary="surface enters an output">
+	This is emitted whenever a surface's creation, movement, or resizing
+	results in some part of it being within the scanout region of an
+	output.
+
+	Note that a surface may be overlapping with zero or more outputs.
+      </description>
+      <arg name="output" type="object" interface="wl_output" summary="output entered by the surface"/>
+    </event>
+
+    <event name="leave">
+      <description summary="surface leaves an output">
+	This is emitted whenever a surface's creation, movement, or resizing
+	results in it no longer having any part of it within the scanout region
+	of an output.
+
+	Clients should not use the number of outputs the surface is on for frame
+	throttling purposes. The surface might be hidden even if no leave event
+	has been sent, and the compositor might expect new surface content
+	updates even if no enter event has been sent. The frame event should be
+	used instead.
+      </description>
+      <arg name="output" type="object" interface="wl_output" summary="output left by the surface"/>
+    </event>
+
+    <!-- Version 2 additions -->
+
+    <request name="set_buffer_transform" since="2">
+      <description summary="sets the buffer transformation">
+	This request sets an optional transformation on how the compositor
+	interprets the contents of the buffer attached to the surface. The
+	accepted values for the transform parameter are the values for
+	wl_output.transform.
+
+	Buffer transform is double-buffered state, see wl_surface.commit.
+
+	A newly created surface has its buffer transformation set to normal.
+
+	wl_surface.set_buffer_transform changes the pending buffer
+	transformation. wl_surface.commit copies the pending buffer
+	transformation to the current one. Otherwise, the pending and current
+	values are never changed.
+
+	The purpose of this request is to allow clients to render content
+	according to the output transform, thus permitting the compositor to
+	use certain optimizations even if the display is rotated. Using
+	hardware overlays and scanning out a client buffer for fullscreen
+	surfaces are examples of such optimizations. Those optimizations are
+	highly dependent on the compositor implementation, so the use of this
+	request should be considered on a case-by-case basis.
+
+	Note that if the transform value includes 90 or 270 degree rotation,
+	the width of the buffer will become the surface height and the height
+	of the buffer will become the surface width.
+
+	If transform is not one of the values from the
+	wl_output.transform enum the invalid_transform protocol error
+	is raised.
+      </description>
+      <arg name="transform" type="int" enum="wl_output.transform"
+	   summary="transform for interpreting buffer contents"/>
+    </request>
+
+    <!-- Version 3 additions -->
+
+    <request name="set_buffer_scale" since="3">
+      <description summary="sets the buffer scaling factor">
+	This request sets an optional scaling factor on how the compositor
+	interprets the contents of the buffer attached to the window.
+
+	Buffer scale is double-buffered state, see wl_surface.commit.
+
+	A newly created surface has its buffer scale set to 1.
+
+	wl_surface.set_buffer_scale changes the pending buffer scale.
+	wl_surface.commit copies the pending buffer scale to the current one.
+	Otherwise, the pending and current values are never changed.
+
+	The purpose of this request is to allow clients to supply higher
+	resolution buffer data for use on high resolution outputs. It is
+	intended that you pick the same buffer scale as the scale of the
+	output that the surface is displayed on. This means the compositor
+	can avoid scaling when rendering the surface on that output.
+
+	Note that if the scale is larger than 1, then you have to attach
+	a buffer that is larger (by a factor of scale in each dimension)
+	than the desired surface size.
+
+	If scale is not positive the invalid_scale protocol error is
+	raised.
+      </description>
+      <arg name="scale" type="int"
+	   summary="positive scale for interpreting buffer contents"/>
+    </request>
+
+    <!-- Version 4 additions -->
+    <request name="damage_buffer" since="4">
+      <description summary="mark part of the surface damaged using buffer coordinates">
+	This request is used to describe the regions where the pending
+	buffer is different from the current surface contents, and where
+	the surface therefore needs to be repainted. The compositor
+	ignores the parts of the damage that fall outside of the surface.
+
+	Damage is double-buffered state, see wl_surface.commit.
+
+	The damage rectangle is specified in buffer coordinates,
+	where x and y specify the upper left corner of the damage rectangle.
+
+	The initial value for pending damage is empty: no damage.
+	wl_surface.damage_buffer adds pending damage: the new pending
+	damage is the union of old pending damage and the given rectangle.
+
+	wl_surface.commit assigns pending damage as the current damage,
+	and clears pending damage. The server will clear the current
+	damage as it repaints the surface.
+
+	This request differs from wl_surface.damage in only one way - it
+	takes damage in buffer coordinates instead of surface-local
+	coordinates. While this generally is more intuitive than surface
+	coordinates, it is especially desirable when using wp_viewport
+	or when a drawing library (like EGL) is unaware of buffer scale
+	and buffer transform.
+
+	Note: Because buffer transformation changes and damage requests may
+	be interleaved in the protocol stream, it is impossible to determine
+	the actual mapping between surface and buffer damage until
+	wl_surface.commit time. Therefore, compositors wishing to take both
+	kinds of damage into account will have to accumulate damage from the
+	two requests separately and only transform from one to the other
+	after receiving the wl_surface.commit.
+      </description>
+      <arg name="x" type="int" summary="buffer-local x coordinate"/>
+      <arg name="y" type="int" summary="buffer-local y coordinate"/>
+      <arg name="width" type="int" summary="width of damage rectangle"/>
+      <arg name="height" type="int" summary="height of damage rectangle"/>
+    </request>
+
+    <!-- Version 5 additions -->
+
+    <request name="offset" since="5">
+      <description summary="set the surface contents offset">
+	The x and y arguments specify the location of the new pending
+	buffer's upper left corner, relative to the current buffer's upper
+	left corner, in surface-local coordinates. In other words, the
+	x and y, combined with the new surface size define in which
+	directions the surface's size changes.
+
+	Surface location offset is double-buffered state, see
+	wl_surface.commit.
+
+	This request is semantically equivalent to and the replaces the x and y
+	arguments in the wl_surface.attach request in wl_surface versions prior
+	to 5. See wl_surface.attach for details.
+      </description>
+      <arg name="x" type="int" summary="surface-local x coordinate"/>
+      <arg name="y" type="int" summary="surface-local y coordinate"/>
+    </request>
+
+    <!-- Version 6 additions -->
+
+    <event name="preferred_buffer_scale" since="6">
+      <description summary="preferred buffer scale for the surface">
+	This event indicates the preferred buffer scale for this surface. It is
+	sent whenever the compositor's preference changes.
+
+	It is intended that scaling aware clients use this event to scale their
+	content and use wl_surface.set_buffer_scale to indicate the scale they
+	have rendered with. This allows clients to supply a higher detail
+	buffer.
+      </description>
+      <arg name="factor" type="int" summary="preferred scaling factor"/>
+    </event>
+
+    <event name="preferred_buffer_transform" since="6">
+      <description summary="preferred buffer transform for the surface">
+	This event indicates the preferred buffer transform for this surface.
+	It is sent whenever the compositor's preference changes.
+
+	It is intended that transform aware clients use this event to apply the
+	transform to their content and use wl_surface.set_buffer_transform to
+	indicate the transform they have rendered with.
+      </description>
+      <arg name="transform" type="uint" enum="wl_output.transform"
+	   summary="preferred transform"/>
+    </event>
+   </interface>
+
+  <interface name="wl_seat" version="9">
+    <description summary="group of input devices">
+      A seat is a group of keyboards, pointer and touch devices. This
+      object is published as a global during start up, or when such a
+      device is hot plugged.  A seat typically has a pointer and
+      maintains a keyboard focus and a pointer focus.
+    </description>
+
+    <enum name="capability" bitfield="true">
+      <description summary="seat capability bitmask">
+	This is a bitmask of capabilities this seat has; if a member is
+	set, then it is present on the seat.
+      </description>
+      <entry name="pointer" value="1" summary="the seat has pointer devices"/>
+      <entry name="keyboard" value="2" summary="the seat has one or more keyboards"/>
+      <entry name="touch" value="4" summary="the seat has touch devices"/>
+    </enum>
+
+    <enum name="error">
+      <description summary="wl_seat error values">
+	These errors can be emitted in response to wl_seat requests.
+      </description>
+      <entry name="missing_capability" value="0"
+	     summary="get_pointer, get_keyboard or get_touch called on seat without the matching capability"/>
+    </enum>
+
+    <event name="capabilities">
+      <description summary="seat capabilities changed">
+	This is emitted whenever a seat gains or loses the pointer,
+	keyboard or touch capabilities.  The argument is a capability
+	enum containing the complete set of capabilities this seat has.
+
+	When the pointer capability is added, a client may create a
+	wl_pointer object using the wl_seat.get_pointer request. This object
+	will receive pointer events until the capability is removed in the
+	future.
+
+	When the pointer capability is removed, a client should destroy the
+	wl_pointer objects associated with the seat where the capability was
+	removed, using the wl_pointer.release request. No further pointer
+	events will be received on these objects.
+
+	In some compositors, if a seat regains the pointer capability and a
+	client has a previously obtained wl_pointer object of version 4 or
+	less, that object may start sending pointer events again. This
+	behavior is considered a misinterpretation of the intended behavior
+	and must not be relied upon by the client. wl_pointer objects of
+	version 5 or later must not send events if created before the most
+	recent event notifying the client of an added pointer capability.
+
+	The above behavior also applies to wl_keyboard and wl_touch with the
+	keyboard and touch capabilities, respectively.
+      </description>
+      <arg name="capabilities" type="uint" enum="capability" summary="capabilities of the seat"/>
+    </event>
+
+    <request name="get_pointer">
+      <description summary="return pointer object">
+	The ID provided will be initialized to the wl_pointer interface
+	for this seat.
+
+	This request only takes effect if the seat has the pointer
+	capability, or has had the pointer capability in the past.
+	It is a protocol violation to issue this request on a seat that has
+	never had the pointer capability. The missing_capability error will
+	be sent in this case.
+      </description>
+      <arg name="id" type="new_id" interface="wl_pointer" summary="seat pointer"/>
+    </request>
+
+    <request name="get_keyboard">
+      <description summary="return keyboard object">
+	The ID provided will be initialized to the wl_keyboard interface
+	for this seat.
+
+	This request only takes effect if the seat has the keyboard
+	capability, or has had the keyboard capability in the past.
+	It is a protocol violation to issue this request on a seat that has
+	never had the keyboard capability. The missing_capability error will
+	be sent in this case.
+      </description>
+      <arg name="id" type="new_id" interface="wl_keyboard" summary="seat keyboard"/>
+    </request>
+
+    <request name="get_touch">
+      <description summary="return touch object">
+	The ID provided will be initialized to the wl_touch interface
+	for this seat.
+
+	This request only takes effect if the seat has the touch
+	capability, or has had the touch capability in the past.
+	It is a protocol violation to issue this request on a seat that has
+	never had the touch capability. The missing_capability error will
+	be sent in this case.
+      </description>
+      <arg name="id" type="new_id" interface="wl_touch" summary="seat touch interface"/>
+    </request>
+
+    <!-- Version 2 additions -->
+
+    <event name="name" since="2">
+      <description summary="unique identifier for this seat">
+	In a multi-seat configuration the seat name can be used by clients to
+	help identify which physical devices the seat represents.
+
+	The seat name is a UTF-8 string with no convention defined for its
+	contents. Each name is unique among all wl_seat globals. The name is
+	only guaranteed to be unique for the current compositor instance.
+
+	The same seat names are used for all clients. Thus, the name can be
+	shared across processes to refer to a specific wl_seat global.
+
+	The name event is sent after binding to the seat global. This event is
+	only sent once per seat object, and the name does not change over the
+	lifetime of the wl_seat global.
+
+	Compositors may re-use the same seat name if the wl_seat global is
+	destroyed and re-created later.
+      </description>
+      <arg name="name" type="string" summary="seat identifier"/>
+    </event>
+
+    <!-- Version 5 additions -->
+
+    <request name="release" type="destructor" since="5">
+      <description summary="release the seat object">
+	Using this request a client can tell the server that it is not going to
+	use the seat object anymore.
+      </description>
+    </request>
+
+  </interface>
+
+  <interface name="wl_pointer" version="9">
+    <description summary="pointer input device">
+      The wl_pointer interface represents one or more input devices,
+      such as mice, which control the pointer location and pointer_focus
+      of a seat.
+
+      The wl_pointer interface generates motion, enter and leave
+      events for the surfaces that the pointer is located over,
+      and button and axis events for button presses, button releases
+      and scrolling.
+    </description>
+
+    <enum name="error">
+      <entry name="role" value="0" summary="given wl_surface has another role"/>
+    </enum>
+
+    <request name="set_cursor">
+      <description summary="set the pointer surface">
+	Set the pointer surface, i.e., the surface that contains the
+	pointer image (cursor). This request gives the surface the role
+	of a cursor. If the surface already has another role, it raises
+	a protocol error.
+
+	The cursor actually changes only if the pointer
+	focus for this device is one of the requesting client's surfaces
+	or the surface parameter is the current pointer surface. If
+	there was a previous surface set with this request it is
+	replaced. If surface is NULL, the pointer image is hidden.
+
+	The parameters hotspot_x and hotspot_y define the position of
+	the pointer surface relative to the pointer location. Its
+	top-left corner is always at (x, y) - (hotspot_x, hotspot_y),
+	where (x, y) are the coordinates of the pointer location, in
+	surface-local coordinates.
+
+	On surface.attach requests to the pointer surface, hotspot_x
+	and hotspot_y are decremented by the x and y parameters
+	passed to the request. Attach must be confirmed by
+	wl_surface.commit as usual.
+
+	The hotspot can also be updated by passing the currently set
+	pointer surface to this request with new values for hotspot_x
+	and hotspot_y.
+
+	The input region is ignored for wl_surfaces with the role of
+	a cursor. When the use as a cursor ends, the wl_surface is
+	unmapped.
+
+	The serial parameter must match the latest wl_pointer.enter
+	serial number sent to the client. Otherwise the request will be
+	ignored.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the enter event"/>
+      <arg name="surface" type="object" interface="wl_surface" allow-null="true"
+	   summary="pointer surface"/>
+      <arg name="hotspot_x" type="int" summary="surface-local x coordinate"/>
+      <arg name="hotspot_y" type="int" summary="surface-local y coordinate"/>
+    </request>
+
+    <event name="enter">
+      <description summary="enter event">
+	Notification that this seat's pointer is focused on a certain
+	surface.
+
+	When a seat's focus enters a surface, the pointer image
+	is undefined and a client should respond to this event by setting
+	an appropriate pointer image with the set_cursor request.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the enter event"/>
+      <arg name="surface" type="object" interface="wl_surface" summary="surface entered by the pointer"/>
+      <arg name="surface_x" type="fixed" summary="surface-local x coordinate"/>
+      <arg name="surface_y" type="fixed" summary="surface-local y coordinate"/>
+    </event>
+
+    <event name="leave">
+      <description summary="leave event">
+	Notification that this seat's pointer is no longer focused on
+	a certain surface.
+
+	The leave notification is sent before the enter notification
+	for the new focus.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the leave event"/>
+      <arg name="surface" type="object" interface="wl_surface" summary="surface left by the pointer"/>
+    </event>
+
+    <event name="motion">
+      <description summary="pointer motion event">
+	Notification of pointer location change. The arguments
+	surface_x and surface_y are the location relative to the
+	focused surface.
+      </description>
+      <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
+      <arg name="surface_x" type="fixed" summary="surface-local x coordinate"/>
+      <arg name="surface_y" type="fixed" summary="surface-local y coordinate"/>
+    </event>
+
+    <enum name="button_state">
+      <description summary="physical button state">
+	Describes the physical state of a button that produced the button
+	event.
+      </description>
+      <entry name="released" value="0" summary="the button is not pressed"/>
+      <entry name="pressed" value="1" summary="the button is pressed"/>
+    </enum>
+
+    <event name="button">
+      <description summary="pointer button event">
+	Mouse button click and release notifications.
+
+	The location of the click is given by the last motion or
+	enter event.
+	The time argument is a timestamp with millisecond
+	granularity, with an undefined base.
+
+	The button is a button code as defined in the Linux kernel's
+	linux/input-event-codes.h header file, e.g. BTN_LEFT.
+
+	Any 16-bit button code value is reserved for future additions to the
+	kernel's event code list. All other button codes above 0xFFFF are
+	currently undefined but may be used in future versions of this
+	protocol.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the button event"/>
+      <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
+      <arg name="button" type="uint" summary="button that produced the event"/>
+      <arg name="state" type="uint" enum="button_state" summary="physical state of the button"/>
+    </event>
+
+    <enum name="axis">
+      <description summary="axis types">
+	Describes the axis types of scroll events.
+      </description>
+      <entry name="vertical_scroll" value="0" summary="vertical axis"/>
+      <entry name="horizontal_scroll" value="1" summary="horizontal axis"/>
+    </enum>
+
+    <event name="axis">
+      <description summary="axis event">
+	Scroll and other axis notifications.
+
+	For scroll events (vertical and horizontal scroll axes), the
+	value parameter is the length of a vector along the specified
+	axis in a coordinate space identical to those of motion events,
+	representing a relative movement along the specified axis.
+
+	For devices that support movements non-parallel to axes multiple
+	axis events will be emitted.
+
+	When applicable, for example for touch pads, the server can
+	choose to emit scroll events where the motion vector is
+	equivalent to a motion event vector.
+
+	When applicable, a client can transform its content relative to the
+	scroll distance.
+      </description>
+      <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
+      <arg name="axis" type="uint" enum="axis" summary="axis type"/>
+      <arg name="value" type="fixed" summary="length of vector in surface-local coordinate space"/>
+    </event>
+
+    <!-- Version 3 additions -->
+
+    <request name="release" type="destructor" since="3">
+      <description summary="release the pointer object">
+	Using this request a client can tell the server that it is not going to
+	use the pointer object anymore.
+
+	This request destroys the pointer proxy object, so clients must not call
+	wl_pointer_destroy() after using this request.
+      </description>
+    </request>
+
+    <!-- Version 5 additions -->
+
+    <event name="frame" since="5">
+      <description summary="end of a pointer event sequence">
+	Indicates the end of a set of events that logically belong together.
+	A client is expected to accumulate the data in all events within the
+	frame before proceeding.
+
+	All wl_pointer events before a wl_pointer.frame event belong
+	logically together. For example, in a diagonal scroll motion the
+	compositor will send an optional wl_pointer.axis_source event, two
+	wl_pointer.axis events (horizontal and vertical) and finally a
+	wl_pointer.frame event. The client may use this information to
+	calculate a diagonal vector for scrolling.
+
+	When multiple wl_pointer.axis events occur within the same frame,
+	the motion vector is the combined motion of all events.
+	When a wl_pointer.axis and a wl_pointer.axis_stop event occur within
+	the same frame, this indicates that axis movement in one axis has
+	stopped but continues in the other axis.
+	When multiple wl_pointer.axis_stop events occur within the same
+	frame, this indicates that these axes stopped in the same instance.
+
+	A wl_pointer.frame event is sent for every logical event group,
+	even if the group only contains a single wl_pointer event.
+	Specifically, a client may get a sequence: motion, frame, button,
+	frame, axis, frame, axis_stop, frame.
+
+	The wl_pointer.enter and wl_pointer.leave events are logical events
+	generated by the compositor and not the hardware. These events are
+	also grouped by a wl_pointer.frame. When a pointer moves from one
+	surface to another, a compositor should group the
+	wl_pointer.leave event within the same wl_pointer.frame.
+	However, a client must not rely on wl_pointer.leave and
+	wl_pointer.enter being in the same wl_pointer.frame.
+	Compositor-specific policies may require the wl_pointer.leave and
+	wl_pointer.enter event being split across multiple wl_pointer.frame
+	groups.
+      </description>
+    </event>
+
+    <enum name="axis_source">
+      <description summary="axis source types">
+	Describes the source types for axis events. This indicates to the
+	client how an axis event was physically generated; a client may
+	adjust the user interface accordingly. For example, scroll events
+	from a "finger" source may be in a smooth coordinate space with
+	kinetic scrolling whereas a "wheel" source may be in discrete steps
+	of a number of lines.
+
+	The "continuous" axis source is a device generating events in a
+	continuous coordinate space, but using something other than a
+	finger. One example for this source is button-based scrolling where
+	the vertical motion of a device is converted to scroll events while
+	a button is held down.
+
+	The "wheel tilt" axis source indicates that the actual device is a
+	wheel but the scroll event is not caused by a rotation but a
+	(usually sideways) tilt of the wheel.
+      </description>
+      <entry name="wheel" value="0" summary="a physical wheel rotation" />
+      <entry name="finger" value="1" summary="finger on a touch surface" />
+      <entry name="continuous" value="2" summary="continuous coordinate space"/>
+      <entry name="wheel_tilt" value="3" summary="a physical wheel tilt" since="6"/>
+    </enum>
+
+    <event name="axis_source" since="5">
+      <description summary="axis source event">
+	Source information for scroll and other axes.
+
+	This event does not occur on its own. It is sent before a
+	wl_pointer.frame event and carries the source information for
+	all events within that frame.
+
+	The source specifies how this event was generated. If the source is
+	wl_pointer.axis_source.finger, a wl_pointer.axis_stop event will be
+	sent when the user lifts the finger off the device.
+
+	If the source is wl_pointer.axis_source.wheel,
+	wl_pointer.axis_source.wheel_tilt or
+	wl_pointer.axis_source.continuous, a wl_pointer.axis_stop event may
+	or may not be sent. Whether a compositor sends an axis_stop event
+	for these sources is hardware-specific and implementation-dependent;
+	clients must not rely on receiving an axis_stop event for these
+	scroll sources and should treat scroll sequences from these scroll
+	sources as unterminated by default.
+
+	This event is optional. If the source is unknown for a particular
+	axis event sequence, no event is sent.
+	Only one wl_pointer.axis_source event is permitted per frame.
+
+	The order of wl_pointer.axis_discrete and wl_pointer.axis_source is
+	not guaranteed.
+      </description>
+      <arg name="axis_source" type="uint" enum="axis_source" summary="source of the axis event"/>
+    </event>
+
+    <event name="axis_stop" since="5">
+      <description summary="axis stop event">
+	Stop notification for scroll and other axes.
+
+	For some wl_pointer.axis_source types, a wl_pointer.axis_stop event
+	is sent to notify a client that the axis sequence has terminated.
+	This enables the client to implement kinetic scrolling.
+	See the wl_pointer.axis_source documentation for information on when
+	this event may be generated.
+
+	Any wl_pointer.axis events with the same axis_source after this
+	event should be considered as the start of a new axis motion.
+
+	The timestamp is to be interpreted identical to the timestamp in the
+	wl_pointer.axis event. The timestamp value may be the same as a
+	preceding wl_pointer.axis event.
+      </description>
+      <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
+      <arg name="axis" type="uint" enum="axis" summary="the axis stopped with this event"/>
+    </event>
+
+    <event name="axis_discrete" since="5">
+      <description summary="axis click event">
+	Discrete step information for scroll and other axes.
+
+	This event carries the axis value of the wl_pointer.axis event in
+	discrete steps (e.g. mouse wheel clicks).
+
+	This event is deprecated with wl_pointer version 8 - this event is not
+	sent to clients supporting version 8 or later.
+
+	This event does not occur on its own, it is coupled with a
+	wl_pointer.axis event that represents this axis value on a
+	continuous scale. The protocol guarantees that each axis_discrete
+	event is always followed by exactly one axis event with the same
+	axis number within the same wl_pointer.frame. Note that the protocol
+	allows for other events to occur between the axis_discrete and
+	its coupled axis event, including other axis_discrete or axis
+	events. A wl_pointer.frame must not contain more than one axis_discrete
+	event per axis type.
+
+	This event is optional; continuous scrolling devices
+	like two-finger scrolling on touchpads do not have discrete
+	steps and do not generate this event.
+
+	The discrete value carries the directional information. e.g. a value
+	of -2 is two steps towards the negative direction of this axis.
+
+	The axis number is identical to the axis number in the associated
+	axis event.
+
+	The order of wl_pointer.axis_discrete and wl_pointer.axis_source is
+	not guaranteed.
+      </description>
+      <arg name="axis" type="uint" enum="axis" summary="axis type"/>
+      <arg name="discrete" type="int" summary="number of steps"/>
+    </event>
+
+    <event name="axis_value120" since="8">
+      <description summary="axis high-resolution scroll event">
+	Discrete high-resolution scroll information.
+
+	This event carries high-resolution wheel scroll information,
+	with each multiple of 120 representing one logical scroll step
+	(a wheel detent). For example, an axis_value120 of 30 is one quarter of
+	a logical scroll step in the positive direction, a value120 of
+	-240 are two logical scroll steps in the negative direction within the
+	same hardware event.
+	Clients that rely on discrete scrolling should accumulate the
+	value120 to multiples of 120 before processing the event.
+
+	The value120 must not be zero.
+
+	This event replaces the wl_pointer.axis_discrete event in clients
+	supporting wl_pointer version 8 or later.
+
+	Where a wl_pointer.axis_source event occurs in the same
+	wl_pointer.frame, the axis source applies to this event.
+
+	The order of wl_pointer.axis_value120 and wl_pointer.axis_source is
+	not guaranteed.
+      </description>
+      <arg name="axis" type="uint" enum="axis" summary="axis type"/>
+      <arg name="value120" type="int" summary="scroll distance as fraction of 120"/>
+    </event>
+
+    <!-- Version 9 additions -->
+
+    <enum name="axis_relative_direction">
+      <description summary="axis relative direction">
+	This specifies the direction of the physical motion that caused a
+	wl_pointer.axis event, relative to the wl_pointer.axis direction.
+      </description>
+      <entry name="identical" value="0"
+	  summary="physical motion matches axis direction"/>
+      <entry name="inverted" value="1"
+	  summary="physical motion is the inverse of the axis direction"/>
+    </enum>
+
+    <event name="axis_relative_direction" since="9">
+      <description summary="axis relative physical direction event">
+	Relative directional information of the entity causing the axis
+	motion.
+
+	For a wl_pointer.axis event, the wl_pointer.axis_relative_direction
+	event specifies the movement direction of the entity causing the
+	wl_pointer.axis event. For example:
+	- if a user's fingers on a touchpad move down and this
+	  causes a wl_pointer.axis vertical_scroll down event, the physical
+	  direction is 'identical'
+	- if a user's fingers on a touchpad move down and this causes a
+	  wl_pointer.axis vertical_scroll up scroll up event ('natural
+	  scrolling'), the physical direction is 'inverted'.
+
+	A client may use this information to adjust scroll motion of
+	components. Specifically, enabling natural scrolling causes the
+	content to change direction compared to traditional scrolling.
+	Some widgets like volume control sliders should usually match the
+	physical direction regardless of whether natural scrolling is
+	active. This event enables clients to match the scroll direction of
+	a widget to the physical direction.
+
+	This event does not occur on its own, it is coupled with a
+	wl_pointer.axis event that represents this axis value.
+	The protocol guarantees that each axis_relative_direction event is
+	always followed by exactly one axis event with the same
+	axis number within the same wl_pointer.frame. Note that the protocol
+	allows for other events to occur between the axis_relative_direction
+	and its coupled axis event.
+
+	The axis number is identical to the axis number in the associated
+	axis event.
+
+	The order of wl_pointer.axis_relative_direction,
+	wl_pointer.axis_discrete and wl_pointer.axis_source is not
+	guaranteed.
+      </description>
+      <arg name="axis" type="uint" enum="axis" summary="axis type"/>
+      <arg name="direction" type="uint" enum="axis_relative_direction"
+	  summary="physical direction relative to axis motion"/>
+    </event>
+  </interface>
+
+  <interface name="wl_keyboard" version="9">
+    <description summary="keyboard input device">
+      The wl_keyboard interface represents one or more keyboards
+      associated with a seat.
+    </description>
+
+    <enum name="keymap_format">
+      <description summary="keyboard mapping format">
+	This specifies the format of the keymap provided to the
+	client with the wl_keyboard.keymap event.
+      </description>
+      <entry name="no_keymap" value="0"
+	     summary="no keymap; client must understand how to interpret the raw keycode"/>
+      <entry name="xkb_v1" value="1"
+	     summary="libxkbcommon compatible, null-terminated string; to determine the xkb keycode, clients must add 8 to the key event keycode"/>
+    </enum>
+
+    <event name="keymap">
+      <description summary="keyboard mapping">
+	This event provides a file descriptor to the client which can be
+	memory-mapped in read-only mode to provide a keyboard mapping
+	description.
+
+	From version 7 onwards, the fd must be mapped with MAP_PRIVATE by
+	the recipient, as MAP_SHARED may fail.
+      </description>
+      <arg name="format" type="uint" enum="keymap_format" summary="keymap format"/>
+      <arg name="fd" type="fd" summary="keymap file descriptor"/>
+      <arg name="size" type="uint" summary="keymap size, in bytes"/>
+    </event>
+
+    <event name="enter">
+      <description summary="enter event">
+	Notification that this seat's keyboard focus is on a certain
+	surface.
+
+	The compositor must send the wl_keyboard.modifiers event after this
+	event.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the enter event"/>
+      <arg name="surface" type="object" interface="wl_surface" summary="surface gaining keyboard focus"/>
+      <arg name="keys" type="array" summary="the currently pressed keys"/>
+    </event>
+
+    <event name="leave">
+      <description summary="leave event">
+	Notification that this seat's keyboard focus is no longer on
+	a certain surface.
+
+	The leave notification is sent before the enter notification
+	for the new focus.
+
+	After this event client must assume that all keys, including modifiers,
+	are lifted and also it must stop key repeating if there's some going on.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the leave event"/>
+      <arg name="surface" type="object" interface="wl_surface" summary="surface that lost keyboard focus"/>
+    </event>
+
+    <enum name="key_state">
+      <description summary="physical key state">
+	Describes the physical state of a key that produced the key event.
+      </description>
+      <entry name="released" value="0" summary="key is not pressed"/>
+      <entry name="pressed" value="1" summary="key is pressed"/>
+    </enum>
+
+    <event name="key">
+      <description summary="key event">
+	A key was pressed or released.
+	The time argument is a timestamp with millisecond
+	granularity, with an undefined base.
+
+	The key is a platform-specific key code that can be interpreted
+	by feeding it to the keyboard mapping (see the keymap event).
+
+	If this event produces a change in modifiers, then the resulting
+	wl_keyboard.modifiers event must be sent after this event.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the key event"/>
+      <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
+      <arg name="key" type="uint" summary="key that produced the event"/>
+      <arg name="state" type="uint" enum="key_state" summary="physical state of the key"/>
+    </event>
+
+    <event name="modifiers">
+      <description summary="modifier and group state">
+	Notifies clients that the modifier and/or group state has
+	changed, and it should update its local state.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the modifiers event"/>
+      <arg name="mods_depressed" type="uint" summary="depressed modifiers"/>
+      <arg name="mods_latched" type="uint" summary="latched modifiers"/>
+      <arg name="mods_locked" type="uint" summary="locked modifiers"/>
+      <arg name="group" type="uint" summary="keyboard layout"/>
+    </event>
+
+    <!-- Version 3 additions -->
+
+    <request name="release" type="destructor" since="3">
+      <description summary="release the keyboard object"/>
+    </request>
+
+    <!-- Version 4 additions -->
+
+    <event name="repeat_info" since="4">
+      <description summary="repeat rate and delay">
+	Informs the client about the keyboard's repeat rate and delay.
+
+	This event is sent as soon as the wl_keyboard object has been created,
+	and is guaranteed to be received by the client before any key press
+	event.
+
+	Negative values for either rate or delay are illegal. A rate of zero
+	will disable any repeating (regardless of the value of delay).
+
+	This event can be sent later on as well with a new value if necessary,
+	so clients should continue listening for the event past the creation
+	of wl_keyboard.
+      </description>
+      <arg name="rate" type="int"
+	   summary="the rate of repeating keys in characters per second"/>
+      <arg name="delay" type="int"
+	   summary="delay in milliseconds since key down until repeating starts"/>
+    </event>
+  </interface>
+
+  <interface name="wl_touch" version="9">
+    <description summary="touchscreen input device">
+      The wl_touch interface represents a touchscreen
+      associated with a seat.
+
+      Touch interactions can consist of one or more contacts.
+      For each contact, a series of events is generated, starting
+      with a down event, followed by zero or more motion events,
+      and ending with an up event. Events relating to the same
+      contact point can be identified by the ID of the sequence.
+    </description>
+
+    <event name="down">
+      <description summary="touch down event and beginning of a touch sequence">
+	A new touch point has appeared on the surface. This touch point is
+	assigned a unique ID. Future events from this touch point reference
+	this ID. The ID ceases to be valid after a touch up event and may be
+	reused in the future.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the touch down event"/>
+      <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
+      <arg name="surface" type="object" interface="wl_surface" summary="surface touched"/>
+      <arg name="id" type="int" summary="the unique ID of this touch point"/>
+      <arg name="x" type="fixed" summary="surface-local x coordinate"/>
+      <arg name="y" type="fixed" summary="surface-local y coordinate"/>
+    </event>
+
+    <event name="up">
+      <description summary="end of a touch event sequence">
+	The touch point has disappeared. No further events will be sent for
+	this touch point and the touch point's ID is released and may be
+	reused in a future touch down event.
+      </description>
+      <arg name="serial" type="uint" summary="serial number of the touch up event"/>
+      <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
+      <arg name="id" type="int" summary="the unique ID of this touch point"/>
+    </event>
+
+    <event name="motion">
+      <description summary="update of touch point coordinates">
+	A touch point has changed coordinates.
+      </description>
+      <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
+      <arg name="id" type="int" summary="the unique ID of this touch point"/>
+      <arg name="x" type="fixed" summary="surface-local x coordinate"/>
+      <arg name="y" type="fixed" summary="surface-local y coordinate"/>
+    </event>
+
+    <event name="frame">
+      <description summary="end of touch frame event">
+	Indicates the end of a set of events that logically belong together.
+	A client is expected to accumulate the data in all events within the
+	frame before proceeding.
+
+	A wl_touch.frame terminates at least one event but otherwise no
+	guarantee is provided about the set of events within a frame. A client
+	must assume that any state not updated in a frame is unchanged from the
+	previously known state.
+      </description>
+    </event>
+
+    <event name="cancel">
+      <description summary="touch session cancelled">
+	Sent if the compositor decides the touch stream is a global
+	gesture. No further events are sent to the clients from that
+	particular gesture. Touch cancellation applies to all touch points
+	currently active on this client's surface. The client is
+	responsible for finalizing the touch points, future touch points on
+	this surface may reuse the touch point ID.
+      </description>
+    </event>
+
+    <!-- Version 3 additions -->
+
+    <request name="release" type="destructor" since="3">
+      <description summary="release the touch object"/>
+    </request>
+
+    <!-- Version 6 additions -->
+
+    <event name="shape" since="6">
+      <description summary="update shape of touch point">
+	Sent when a touchpoint has changed its shape.
+
+	This event does not occur on its own. It is sent before a
+	wl_touch.frame event and carries the new shape information for
+	any previously reported, or new touch points of that frame.
+
+	Other events describing the touch point such as wl_touch.down,
+	wl_touch.motion or wl_touch.orientation may be sent within the
+	same wl_touch.frame. A client should treat these events as a single
+	logical touch point update. The order of wl_touch.shape,
+	wl_touch.orientation and wl_touch.motion is not guaranteed.
+	A wl_touch.down event is guaranteed to occur before the first
+	wl_touch.shape event for this touch ID but both events may occur within
+	the same wl_touch.frame.
+
+	A touchpoint shape is approximated by an ellipse through the major and
+	minor axis length. The major axis length describes the longer diameter
+	of the ellipse, while the minor axis length describes the shorter
+	diameter. Major and minor are orthogonal and both are specified in
+	surface-local coordinates. The center of the ellipse is always at the
+	touchpoint location as reported by wl_touch.down or wl_touch.move.
+
+	This event is only sent by the compositor if the touch device supports
+	shape reports. The client has to make reasonable assumptions about the
+	shape if it did not receive this event.
+      </description>
+      <arg name="id" type="int" summary="the unique ID of this touch point"/>
+      <arg name="major" type="fixed" summary="length of the major axis in surface-local coordinates"/>
+      <arg name="minor" type="fixed" summary="length of the minor axis in surface-local coordinates"/>
+    </event>
+
+    <event name="orientation" since="6">
+      <description summary="update orientation of touch point">
+	Sent when a touchpoint has changed its orientation.
+
+	This event does not occur on its own. It is sent before a
+	wl_touch.frame event and carries the new shape information for
+	any previously reported, or new touch points of that frame.
+
+	Other events describing the touch point such as wl_touch.down,
+	wl_touch.motion or wl_touch.shape may be sent within the
+	same wl_touch.frame. A client should treat these events as a single
+	logical touch point update. The order of wl_touch.shape,
+	wl_touch.orientation and wl_touch.motion is not guaranteed.
+	A wl_touch.down event is guaranteed to occur before the first
+	wl_touch.orientation event for this touch ID but both events may occur
+	within the same wl_touch.frame.
+
+	The orientation describes the clockwise angle of a touchpoint's major
+	axis to the positive surface y-axis and is normalized to the -180 to
+	+180 degree range. The granularity of orientation depends on the touch
+	device, some devices only support binary rotation values between 0 and
+	90 degrees.
+
+	This event is only sent by the compositor if the touch device supports
+	orientation reports.
+      </description>
+      <arg name="id" type="int" summary="the unique ID of this touch point"/>
+      <arg name="orientation" type="fixed" summary="angle between major axis and positive surface y-axis in degrees"/>
+    </event>
+  </interface>
+
+  <interface name="wl_output" version="4">
+    <description summary="compositor output region">
+      An output describes part of the compositor geometry.  The
+      compositor works in the 'compositor coordinate system' and an
+      output corresponds to a rectangular area in that space that is
+      actually visible.  This typically corresponds to a monitor that
+      displays part of the compositor space.  This object is published
+      as global during start up, or when a monitor is hotplugged.
+    </description>
+
+    <enum name="subpixel">
+      <description summary="subpixel geometry information">
+	This enumeration describes how the physical
+	pixels on an output are laid out.
+      </description>
+      <entry name="unknown" value="0" summary="unknown geometry"/>
+      <entry name="none" value="1" summary="no geometry"/>
+      <entry name="horizontal_rgb" value="2" summary="horizontal RGB"/>
+      <entry name="horizontal_bgr" value="3" summary="horizontal BGR"/>
+      <entry name="vertical_rgb" value="4" summary="vertical RGB"/>
+      <entry name="vertical_bgr" value="5" summary="vertical BGR"/>
+    </enum>
+
+    <enum name="transform">
+      <description summary="transform from framebuffer to output">
+	This describes the transform that a compositor will apply to a
+	surface to compensate for the rotation or mirroring of an
+	output device.
+
+	The flipped values correspond to an initial flip around a
+	vertical axis followed by rotation.
+
+	The purpose is mainly to allow clients to render accordingly and
+	tell the compositor, so that for fullscreen surfaces, the
+	compositor will still be able to scan out directly from client
+	surfaces.
+      </description>
+      <entry name="normal" value="0" summary="no transform"/>
+      <entry name="90" value="1" summary="90 degrees counter-clockwise"/>
+      <entry name="180" value="2" summary="180 degrees counter-clockwise"/>
+      <entry name="270" value="3" summary="270 degrees counter-clockwise"/>
+      <entry name="flipped" value="4" summary="180 degree flip around a vertical axis"/>
+      <entry name="flipped_90" value="5" summary="flip and rotate 90 degrees counter-clockwise"/>
+      <entry name="flipped_180" value="6" summary="flip and rotate 180 degrees counter-clockwise"/>
+      <entry name="flipped_270" value="7" summary="flip and rotate 270 degrees counter-clockwise"/>
+    </enum>
+
+    <event name="geometry">
+      <description summary="properties of the output">
+	The geometry event describes geometric properties of the output.
+	The event is sent when binding to the output object and whenever
+	any of the properties change.
+
+	The physical size can be set to zero if it doesn't make sense for this
+	output (e.g. for projectors or virtual outputs).
+
+	The geometry event will be followed by a done event (starting from
+	version 2).
+
+	Note: wl_output only advertises partial information about the output
+	position and identification. Some compositors, for instance those not
+	implementing a desktop-style output layout or those exposing virtual
+	outputs, might fake this information. Instead of using x and y, clients
+	should use xdg_output.logical_position. Instead of using make and model,
+	clients should use name and description.
+      </description>
+      <arg name="x" type="int"
+	   summary="x position within the global compositor space"/>
+      <arg name="y" type="int"
+	   summary="y position within the global compositor space"/>
+      <arg name="physical_width" type="int"
+	   summary="width in millimeters of the output"/>
+      <arg name="physical_height" type="int"
+	   summary="height in millimeters of the output"/>
+      <arg name="subpixel" type="int" enum="subpixel"
+	   summary="subpixel orientation of the output"/>
+      <arg name="make" type="string"
+	   summary="textual description of the manufacturer"/>
+      <arg name="model" type="string"
+	   summary="textual description of the model"/>
+      <arg name="transform" type="int" enum="transform"
+	   summary="transform that maps framebuffer to output"/>
+    </event>
+
+    <enum name="mode" bitfield="true">
+      <description summary="mode information">
+	These flags describe properties of an output mode.
+	They are used in the flags bitfield of the mode event.
+      </description>
+      <entry name="current" value="0x1"
+	     summary="indicates this is the current mode"/>
+      <entry name="preferred" value="0x2"
+	     summary="indicates this is the preferred mode"/>
+    </enum>
+
+    <event name="mode">
+      <description summary="advertise available modes for the output">
+	The mode event describes an available mode for the output.
+
+	The event is sent when binding to the output object and there
+	will always be one mode, the current mode.  The event is sent
+	again if an output changes mode, for the mode that is now
+	current.  In other words, the current mode is always the last
+	mode that was received with the current flag set.
+
+	Non-current modes are deprecated. A compositor can decide to only
+	advertise the current mode and never send other modes. Clients
+	should not rely on non-current modes.
+
+	The size of a mode is given in physical hardware units of
+	the output device. This is not necessarily the same as
+	the output size in the global compositor space. For instance,
+	the output may be scaled, as described in wl_output.scale,
+	or transformed, as described in wl_output.transform. Clients
+	willing to retrieve the output size in the global compositor
+	space should use xdg_output.logical_size instead.
+
+	The vertical refresh rate can be set to zero if it doesn't make
+	sense for this output (e.g. for virtual outputs).
+
+	The mode event will be followed by a done event (starting from
+	version 2).
+
+	Clients should not use the refresh rate to schedule frames. Instead,
+	they should use the wl_surface.frame event or the presentation-time
+	protocol.
+
+	Note: this information is not always meaningful for all outputs. Some
+	compositors, such as those exposing virtual outputs, might fake the
+	refresh rate or the size.
+      </description>
+      <arg name="flags" type="uint" enum="mode" summary="bitfield of mode flags"/>
+      <arg name="width" type="int" summary="width of the mode in hardware units"/>
+      <arg name="height" type="int" summary="height of the mode in hardware units"/>
+      <arg name="refresh" type="int" summary="vertical refresh rate in mHz"/>
+    </event>
+
+    <!-- Version 2 additions -->
+
+    <event name="done" since="2">
+      <description summary="sent all information about output">
+	This event is sent after all other properties have been
+	sent after binding to the output object and after any
+	other property changes done after that. This allows
+	changes to the output properties to be seen as
+	atomic, even if they happen via multiple events.
+      </description>
+    </event>
+
+    <event name="scale" since="2">
+      <description summary="output scaling properties">
+	This event contains scaling geometry information
+	that is not in the geometry event. It may be sent after
+	binding the output object or if the output scale changes
+	later. If it is not sent, the client should assume a
+	scale of 1.
+
+	A scale larger than 1 means that the compositor will
+	automatically scale surface buffers by this amount
+	when rendering. This is used for very high resolution
+	displays where applications rendering at the native
+	resolution would be too small to be legible.
+
+	It is intended that scaling aware clients track the
+	current output of a surface, and if it is on a scaled
+	output it should use wl_surface.set_buffer_scale with
+	the scale of the output. That way the compositor can
+	avoid scaling the surface, and the client can supply
+	a higher detail image.
+
+	The scale event will be followed by a done event.
+      </description>
+      <arg name="factor" type="int" summary="scaling factor of output"/>
+    </event>
+
+    <!-- Version 3 additions -->
+
+    <request name="release" type="destructor" since="3">
+      <description summary="release the output object">
+	Using this request a client can tell the server that it is not going to
+	use the output object anymore.
+      </description>
+    </request>
+
+    <!-- Version 4 additions -->
+
+    <event name="name" since="4">
+      <description summary="name of this output">
+	Many compositors will assign user-friendly names to their outputs, show
+	them to the user, allow the user to refer to an output, etc. The client
+	may wish to know this name as well to offer the user similar behaviors.
+
+	The name is a UTF-8 string with no convention defined for its contents.
+	Each name is unique among all wl_output globals. The name is only
+	guaranteed to be unique for the compositor instance.
+
+	The same output name is used for all clients for a given wl_output
+	global. Thus, the name can be shared across processes to refer to a
+	specific wl_output global.
+
+	The name is not guaranteed to be persistent across sessions, thus cannot
+	be used to reliably identify an output in e.g. configuration files.
+
+	Examples of names include 'HDMI-A-1', 'WL-1', 'X11-1', etc. However, do
+	not assume that the name is a reflection of an underlying DRM connector,
+	X11 connection, etc.
+
+	The name event is sent after binding the output object. This event is
+	only sent once per output object, and the name does not change over the
+	lifetime of the wl_output global.
+
+	Compositors may re-use the same output name if the wl_output global is
+	destroyed and re-created later. Compositors should avoid re-using the
+	same name if possible.
+
+	The name event will be followed by a done event.
+      </description>
+      <arg name="name" type="string" summary="output name"/>
+    </event>
+
+    <event name="description" since="4">
+      <description summary="human-readable description of this output">
+	Many compositors can produce human-readable descriptions of their
+	outputs. The client may wish to know this description as well, e.g. for
+	output selection purposes.
+
+	The description is a UTF-8 string with no convention defined for its
+	contents. The description is not guaranteed to be unique among all
+	wl_output globals. Examples might include 'Foocorp 11" Display' or
+	'Virtual X11 output via :1'.
+
+	The description event is sent after binding the output object and
+	whenever the description changes. The description is optional, and may
+	not be sent at all.
+
+	The description event will be followed by a done event.
+      </description>
+      <arg name="description" type="string" summary="output description"/>
+    </event>
+  </interface>
+
+  <interface name="wl_region" version="1">
+    <description summary="region interface">
+      A region object describes an area.
+
+      Region objects are used to describe the opaque and input
+      regions of a surface.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy region">
+	Destroy the region.  This will invalidate the object ID.
+      </description>
+    </request>
+
+    <request name="add">
+      <description summary="add rectangle to region">
+	Add the specified rectangle to the region.
+      </description>
+      <arg name="x" type="int" summary="region-local x coordinate"/>
+      <arg name="y" type="int" summary="region-local y coordinate"/>
+      <arg name="width" type="int" summary="rectangle width"/>
+      <arg name="height" type="int" summary="rectangle height"/>
+    </request>
+
+    <request name="subtract">
+      <description summary="subtract rectangle from region">
+	Subtract the specified rectangle from the region.
+      </description>
+      <arg name="x" type="int" summary="region-local x coordinate"/>
+      <arg name="y" type="int" summary="region-local y coordinate"/>
+      <arg name="width" type="int" summary="rectangle width"/>
+      <arg name="height" type="int" summary="rectangle height"/>
+    </request>
+  </interface>
+
+  <interface name="wl_subcompositor" version="1">
+    <description summary="sub-surface compositing">
+      The global interface exposing sub-surface compositing capabilities.
+      A wl_surface, that has sub-surfaces associated, is called the
+      parent surface. Sub-surfaces can be arbitrarily nested and create
+      a tree of sub-surfaces.
+
+      The root surface in a tree of sub-surfaces is the main
+      surface. The main surface cannot be a sub-surface, because
+      sub-surfaces must always have a parent.
+
+      A main surface with its sub-surfaces forms a (compound) window.
+      For window management purposes, this set of wl_surface objects is
+      to be considered as a single window, and it should also behave as
+      such.
+
+      The aim of sub-surfaces is to offload some of the compositing work
+      within a window from clients to the compositor. A prime example is
+      a video player with decorations and video in separate wl_surface
+      objects. This should allow the compositor to pass YUV video buffer
+      processing to dedicated overlay hardware when possible.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="unbind from the subcompositor interface">
+	Informs the server that the client will not be using this
+	protocol object anymore. This does not affect any other
+	objects, wl_subsurface objects included.
+      </description>
+    </request>
+
+    <enum name="error">
+      <entry name="bad_surface" value="0"
+	     summary="the to-be sub-surface is invalid"/>
+      <entry name="bad_parent" value="1"
+	     summary="the to-be sub-surface parent is invalid"/>
+    </enum>
+
+    <request name="get_subsurface">
+      <description summary="give a surface the role sub-surface">
+	Create a sub-surface interface for the given surface, and
+	associate it with the given parent surface. This turns a
+	plain wl_surface into a sub-surface.
+
+	The to-be sub-surface must not already have another role, and it
+	must not have an existing wl_subsurface object. Otherwise the
+	bad_surface protocol error is raised.
+
+	Adding sub-surfaces to a parent is a double-buffered operation on the
+	parent (see wl_surface.commit). The effect of adding a sub-surface
+	becomes visible on the next time the state of the parent surface is
+	applied.
+
+	The parent surface must not be one of the child surface's descendants,
+	and the parent must be different from the child surface, otherwise the
+	bad_parent protocol error is raised.
+
+	This request modifies the behaviour of wl_surface.commit request on
+	the sub-surface, see the documentation on wl_subsurface interface.
+      </description>
+      <arg name="id" type="new_id" interface="wl_subsurface"
+	   summary="the new sub-surface object ID"/>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="the surface to be turned into a sub-surface"/>
+      <arg name="parent" type="object" interface="wl_surface"
+	   summary="the parent surface"/>
+    </request>
+  </interface>
+
+  <interface name="wl_subsurface" version="1">
+    <description summary="sub-surface interface to a wl_surface">
+      An additional interface to a wl_surface object, which has been
+      made a sub-surface. A sub-surface has one parent surface. A
+      sub-surface's size and position are not limited to that of the parent.
+      Particularly, a sub-surface is not automatically clipped to its
+      parent's area.
+
+      A sub-surface becomes mapped, when a non-NULL wl_buffer is applied
+      and the parent surface is mapped. The order of which one happens
+      first is irrelevant. A sub-surface is hidden if the parent becomes
+      hidden, or if a NULL wl_buffer is applied. These rules apply
+      recursively through the tree of surfaces.
+
+      The behaviour of a wl_surface.commit request on a sub-surface
+      depends on the sub-surface's mode. The possible modes are
+      synchronized and desynchronized, see methods
+      wl_subsurface.set_sync and wl_subsurface.set_desync. Synchronized
+      mode caches the wl_surface state to be applied when the parent's
+      state gets applied, and desynchronized mode applies the pending
+      wl_surface state directly. A sub-surface is initially in the
+      synchronized mode.
+
+      Sub-surfaces also have another kind of state, which is managed by
+      wl_subsurface requests, as opposed to wl_surface requests. This
+      state includes the sub-surface position relative to the parent
+      surface (wl_subsurface.set_position), and the stacking order of
+      the parent and its sub-surfaces (wl_subsurface.place_above and
+      .place_below). This state is applied when the parent surface's
+      wl_surface state is applied, regardless of the sub-surface's mode.
+      As the exception, set_sync and set_desync are effective immediately.
+
+      The main surface can be thought to be always in desynchronized mode,
+      since it does not have a parent in the sub-surfaces sense.
+
+      Even if a sub-surface is in desynchronized mode, it will behave as
+      in synchronized mode, if its parent surface behaves as in
+      synchronized mode. This rule is applied recursively throughout the
+      tree of surfaces. This means, that one can set a sub-surface into
+      synchronized mode, and then assume that all its child and grand-child
+      sub-surfaces are synchronized, too, without explicitly setting them.
+
+      Destroying a sub-surface takes effect immediately. If you need to
+      synchronize the removal of a sub-surface to the parent surface update,
+      unmap the sub-surface first by attaching a NULL wl_buffer, update parent,
+      and then destroy the sub-surface.
+
+      If the parent wl_surface object is destroyed, the sub-surface is
+      unmapped.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="remove sub-surface interface">
+	The sub-surface interface is removed from the wl_surface object
+	that was turned into a sub-surface with a
+	wl_subcompositor.get_subsurface request. The wl_surface's association
+	to the parent is deleted. The wl_surface is unmapped immediately.
+      </description>
+    </request>
+
+    <enum name="error">
+      <entry name="bad_surface" value="0"
+	     summary="wl_surface is not a sibling or the parent"/>
+    </enum>
+
+    <request name="set_position">
+      <description summary="reposition the sub-surface">
+	This schedules a sub-surface position change.
+	The sub-surface will be moved so that its origin (top left
+	corner pixel) will be at the location x, y of the parent surface
+	coordinate system. The coordinates are not restricted to the parent
+	surface area. Negative values are allowed.
+
+	The scheduled coordinates will take effect whenever the state of the
+	parent surface is applied. When this happens depends on whether the
+	parent surface is in synchronized mode or not. See
+	wl_subsurface.set_sync and wl_subsurface.set_desync for details.
+
+	If more than one set_position request is invoked by the client before
+	the commit of the parent surface, the position of a new request always
+	replaces the scheduled position from any previous request.
+
+	The initial position is 0, 0.
+      </description>
+      <arg name="x" type="int" summary="x coordinate in the parent surface"/>
+      <arg name="y" type="int" summary="y coordinate in the parent surface"/>
+    </request>
+
+    <request name="place_above">
+      <description summary="restack the sub-surface">
+	This sub-surface is taken from the stack, and put back just
+	above the reference surface, changing the z-order of the sub-surfaces.
+	The reference surface must be one of the sibling surfaces, or the
+	parent surface. Using any other surface, including this sub-surface,
+	will cause a protocol error.
+
+	The z-order is double-buffered. Requests are handled in order and
+	applied immediately to a pending state. The final pending state is
+	copied to the active state the next time the state of the parent
+	surface is applied. When this happens depends on whether the parent
+	surface is in synchronized mode or not. See wl_subsurface.set_sync and
+	wl_subsurface.set_desync for details.
+
+	A new sub-surface is initially added as the top-most in the stack
+	of its siblings and parent.
+      </description>
+      <arg name="sibling" type="object" interface="wl_surface"
+	   summary="the reference surface"/>
+    </request>
+
+    <request name="place_below">
+      <description summary="restack the sub-surface">
+	The sub-surface is placed just below the reference surface.
+	See wl_subsurface.place_above.
+      </description>
+      <arg name="sibling" type="object" interface="wl_surface"
+	   summary="the reference surface"/>
+    </request>
+
+    <request name="set_sync">
+      <description summary="set sub-surface to synchronized mode">
+	Change the commit behaviour of the sub-surface to synchronized
+	mode, also described as the parent dependent mode.
+
+	In synchronized mode, wl_surface.commit on a sub-surface will
+	accumulate the committed state in a cache, but the state will
+	not be applied and hence will not change the compositor output.
+	The cached state is applied to the sub-surface immediately after
+	the parent surface's state is applied. This ensures atomic
+	updates of the parent and all its synchronized sub-surfaces.
+	Applying the cached state will invalidate the cache, so further
+	parent surface commits do not (re-)apply old state.
+
+	See wl_subsurface for the recursive effect of this mode.
+      </description>
+    </request>
+
+    <request name="set_desync">
+      <description summary="set sub-surface to desynchronized mode">
+	Change the commit behaviour of the sub-surface to desynchronized
+	mode, also described as independent or freely running mode.
+
+	In desynchronized mode, wl_surface.commit on a sub-surface will
+	apply the pending state directly, without caching, as happens
+	normally with a wl_surface. Calling wl_surface.commit on the
+	parent surface has no effect on the sub-surface's wl_surface
+	state. This mode allows a sub-surface to be updated on its own.
+
+	If cached state exists when wl_surface.commit is called in
+	desynchronized mode, the pending state is added to the cached
+	state, and applied as a whole. This invalidates the cache.
+
+	Note: even if a sub-surface is set to desynchronized, a parent
+	sub-surface may override it to behave as synchronized. For details,
+	see wl_subsurface.
+
+	If a surface's parent surface behaves as desynchronized, then
+	the cached state is applied on set_desync.
+      </description>
+    </request>
+  </interface>
+
+</protocol>
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/xdg-activation-v1.xml b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/xdg-activation-v1.xml
new file mode 100644
index 000000000000..9adcc274ef14
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/xdg-activation-v1.xml
@@ -0,0 +1,200 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="xdg_activation_v1">
+
+  <copyright>
+    Copyright © 2020 Aleix Pol Gonzalez &lt;aleixpol@kde.org&gt;
+    Copyright © 2020 Carlos Garnacho &lt;carlosg@gnome.org&gt;
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <description summary="Protocol for requesting activation of surfaces">
+    The way for a client to pass focus to another toplevel is as follows.
+
+    The client that intends to activate another toplevel uses the
+    xdg_activation_v1.get_activation_token request to get an activation token.
+    This token is then forwarded to the client, which is supposed to activate
+    one of its surfaces, through a separate band of communication.
+
+    One established way of doing this is through the XDG_ACTIVATION_TOKEN
+    environment variable of a newly launched child process. The child process
+    should unset the environment variable again right after reading it out in
+    order to avoid propagating it to other child processes.
+
+    Another established way exists for Applications implementing the D-Bus
+    interface org.freedesktop.Application, which should get their token under
+    activation-token on their platform_data.
+
+    In general activation tokens may be transferred across clients through
+    means not described in this protocol.
+
+    The client to be activated will then pass the token
+    it received to the xdg_activation_v1.activate request. The compositor can
+    then use this token to decide how to react to the activation request.
+
+    The token the activating client gets may be ineffective either already at
+    the time it receives it, for example if it was not focused, for focus
+    stealing prevention. The activating client will have no way to discover
+    the validity of the token, and may still forward it to the to be activated
+    client.
+
+    The created activation token may optionally get information attached to it
+    that can be used by the compositor to identify the application that we
+    intend to activate. This can for example be used to display a visual hint
+    about what application is being started.
+
+    Warning! The protocol described in this file is currently in the testing
+    phase. Backward compatible changes may be added together with the
+    corresponding interface version bump. Backward incompatible changes can
+    only be done by creating a new major version of the extension.
+  </description>
+
+  <interface name="xdg_activation_v1" version="1">
+    <description summary="interface for activating surfaces">
+      A global interface used for informing the compositor about applications
+      being activated or started, or for applications to request to be
+      activated.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the xdg_activation object">
+        Notify the compositor that the xdg_activation object will no longer be
+        used.
+
+        The child objects created via this interface are unaffected and should
+        be destroyed separately.
+      </description>
+    </request>
+
+    <request name="get_activation_token">
+      <description summary="requests a token">
+        Creates an xdg_activation_token_v1 object that will provide
+        the initiating client with a unique token for this activation. This
+        token should be offered to the clients to be activated.
+      </description>
+
+      <arg name="id" type="new_id" interface="xdg_activation_token_v1"/>
+    </request>
+
+    <request name="activate">
+      <description summary="notify new interaction being available">
+        Requests surface activation. It's up to the compositor to display
+        this information as desired, for example by placing the surface above
+        the rest.
+
+        The compositor may know who requested this by checking the activation
+        token and might decide not to follow through with the activation if it's
+        considered unwanted.
+
+        Compositors can ignore unknown activation tokens when an invalid
+        token is passed.
+      </description>
+      <arg name="token" type="string" summary="the activation token of the initiating client"/>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="the wl_surface to activate"/>
+    </request>
+  </interface>
+
+  <interface name="xdg_activation_token_v1" version="1">
+    <description summary="an exported activation handle">
+      An object for setting up a token and receiving a token handle that can
+      be passed as an activation token to another client.
+
+      The object is created using the xdg_activation_v1.get_activation_token
+      request. This object should then be populated with the app_id, surface
+      and serial information and committed. The compositor shall then issue a
+      done event with the token. In case the request's parameters are invalid,
+      the compositor will provide an invalid token.
+    </description>
+
+    <enum name="error">
+      <entry name="already_used" value="0"
+             summary="The token has already been used previously"/>
+    </enum>
+
+    <request name="set_serial">
+      <description summary="specifies the seat and serial of the activating event">
+        Provides information about the seat and serial event that requested the
+        token.
+
+        The serial can come from an input or focus event. For instance, if a
+        click triggers the launch of a third-party client, the launcher client
+        should send a set_serial request with the serial and seat from the
+        wl_pointer.button event.
+
+        Some compositors might refuse to activate toplevels when the token
+        doesn't have a valid and recent enough event serial.
+
+        Must be sent before commit. This information is optional.
+      </description>
+      <arg name="serial" type="uint"
+           summary="the serial of the event that triggered the activation"/>
+      <arg name="seat" type="object" interface="wl_seat"
+           summary="the wl_seat of the event"/>
+    </request>
+
+    <request name="set_app_id">
+      <description summary="specifies the application being activated">
+        The requesting client can specify an app_id to associate the token
+        being created with it.
+
+        Must be sent before commit. This information is optional.
+      </description>
+      <arg name="app_id" type="string"
+           summary="the application id of the client being activated."/>
+    </request>
+
+    <request name="set_surface">
+      <description summary="specifies the surface requesting activation">
+        This request sets the surface requesting the activation. Note, this is
+        different from the surface that will be activated.
+
+        Some compositors might refuse to activate toplevels when the token
+        doesn't have a requesting surface.
+
+        Must be sent before commit. This information is optional.
+      </description>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="the requesting surface"/>
+    </request>
+
+    <request name="commit">
+      <description summary="issues the token request">
+        Requests an activation token based on the different parameters that
+        have been offered through set_serial, set_surface and set_app_id.
+      </description>
+    </request>
+
+    <event name="done">
+      <description summary="the exported activation token">
+        The 'done' event contains the unique token of this activation request
+        and notifies that the provider is done.
+      </description>
+      <arg name="token" type="string" summary="the exported activation token"/>
+    </event>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the xdg_activation_token_v1 object">
+        Notify the compositor that the xdg_activation_token_v1 object will no
+        longer be used. The received token stays valid.
+      </description>
+    </request>
+  </interface>
+</protocol>
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/xdg-decoration-unstable-v1.xml b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/xdg-decoration-unstable-v1.xml
new file mode 100644
index 000000000000..e5967751d7f3
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/xdg-decoration-unstable-v1.xml
@@ -0,0 +1,156 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="xdg_decoration_unstable_v1">
+  <copyright>
+    Copyright © 2018 Simon Ser
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <interface name="zxdg_decoration_manager_v1" version="1">
+    <description summary="window decoration manager">
+      This interface allows a compositor to announce support for server-side
+      decorations.
+
+      A window decoration is a set of window controls as deemed appropriate by
+      the party managing them, such as user interface components used to move,
+      resize and change a window's state.
+
+      A client can use this protocol to request being decorated by a supporting
+      compositor.
+
+      If compositor and client do not negotiate the use of a server-side
+      decoration using this protocol, clients continue to self-decorate as they
+      see fit.
+
+      Warning! The protocol described in this file is experimental and
+      backward incompatible changes may be made. Backward compatible changes
+      may be added together with the corresponding interface version bump.
+      Backward incompatible changes are done by bumping the version number in
+      the protocol and interface names and resetting the interface version.
+      Once the protocol is to be declared stable, the 'z' prefix and the
+      version number in the protocol and interface names are removed and the
+      interface version number is reset.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the decoration manager object">
+        Destroy the decoration manager. This doesn't destroy objects created
+        with the manager.
+      </description>
+    </request>
+
+    <request name="get_toplevel_decoration">
+      <description summary="create a new toplevel decoration object">
+        Create a new decoration object associated with the given toplevel.
+
+        Creating an xdg_toplevel_decoration from an xdg_toplevel which has a
+        buffer attached or committed is a client error, and any attempts by a
+        client to attach or manipulate a buffer prior to the first
+        xdg_toplevel_decoration.configure event must also be treated as
+        errors.
+      </description>
+      <arg name="id" type="new_id" interface="zxdg_toplevel_decoration_v1"/>
+      <arg name="toplevel" type="object" interface="xdg_toplevel"/>
+    </request>
+  </interface>
+
+  <interface name="zxdg_toplevel_decoration_v1" version="1">
+    <description summary="decoration object for a toplevel surface">
+      The decoration object allows the compositor to toggle server-side window
+      decorations for a toplevel surface. The client can request to switch to
+      another mode.
+
+      The xdg_toplevel_decoration object must be destroyed before its
+      xdg_toplevel.
+    </description>
+
+    <enum name="error">
+      <entry name="unconfigured_buffer" value="0"
+        summary="xdg_toplevel has a buffer attached before configure"/>
+      <entry name="already_constructed" value="1"
+        summary="xdg_toplevel already has a decoration object"/>
+      <entry name="orphaned" value="2"
+        summary="xdg_toplevel destroyed before the decoration object"/>
+    </enum>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the decoration object">
+        Switch back to a mode without any server-side decorations at the next
+        commit.
+      </description>
+    </request>
+
+    <enum name="mode">
+      <description summary="window decoration modes">
+        These values describe window decoration modes.
+      </description>
+      <entry name="client_side" value="1"
+        summary="no server-side window decoration"/>
+      <entry name="server_side" value="2"
+        summary="server-side window decoration"/>
+    </enum>
+
+    <request name="set_mode">
+      <description summary="set the decoration mode">
+        Set the toplevel surface decoration mode. This informs the compositor
+        that the client prefers the provided decoration mode.
+
+        After requesting a decoration mode, the compositor will respond by
+        emitting an xdg_surface.configure event. The client should then update
+        its content, drawing it without decorations if the received mode is
+        server-side decorations. The client must also acknowledge the configure
+        when committing the new content (see xdg_surface.ack_configure).
+
+        The compositor can decide not to use the client's mode and enforce a
+        different mode instead.
+
+        Clients whose decoration mode depend on the xdg_toplevel state may send
+        a set_mode request in response to an xdg_surface.configure event and wait
+        for the next xdg_surface.configure event to prevent unwanted state.
+        Such clients are responsible for preventing configure loops and must
+        make sure not to send multiple successive set_mode requests with the
+        same decoration mode.
+      </description>
+      <arg name="mode" type="uint" enum="mode" summary="the decoration mode"/>
+    </request>
+
+    <request name="unset_mode">
+      <description summary="unset the decoration mode">
+        Unset the toplevel surface decoration mode. This informs the compositor
+        that the client doesn't prefer a particular decoration mode.
+
+        This request has the same semantics as set_mode.
+      </description>
+    </request>
+
+    <event name="configure">
+      <description summary="suggest a surface change">
+        The configure event asks the client to change its decoration mode. The
+        configured state should not be applied immediately. Clients must send an
+        ack_configure in response to this event. See xdg_surface.configure and
+        xdg_surface.ack_configure for details.
+
+        A configure event can be sent at any time. The specified mode must be
+        obeyed by the client.
+      </description>
+      <arg name="mode" type="uint" enum="mode" summary="the decoration mode"/>
+    </event>
+  </interface>
+</protocol>
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/xdg-shell.xml b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/xdg-shell.xml
new file mode 100644
index 000000000000..777eaa7499ad
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps/wayland/xdg-shell.xml
@@ -0,0 +1,1370 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="xdg_shell">
+
+  <copyright>
+    Copyright © 2008-2013 Kristian Høgsberg
+    Copyright © 2013      Rafael Antognolli
+    Copyright © 2013      Jasper St. Pierre
+    Copyright © 2010-2013 Intel Corporation
+    Copyright © 2015-2017 Samsung Electronics Co., Ltd
+    Copyright © 2015-2017 Red Hat Inc.
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <interface name="xdg_wm_base" version="6">
+    <description summary="create desktop-style surfaces">
+      The xdg_wm_base interface is exposed as a global object enabling clients
+      to turn their wl_surfaces into windows in a desktop environment. It
+      defines the basic functionality needed for clients and the compositor to
+      create windows that can be dragged, resized, maximized, etc, as well as
+      creating transient windows such as popup menus.
+    </description>
+
+    <enum name="error">
+      <entry name="role" value="0" summary="given wl_surface has another role"/>
+      <entry name="defunct_surfaces" value="1"
+	     summary="xdg_wm_base was destroyed before children"/>
+      <entry name="not_the_topmost_popup" value="2"
+	     summary="the client tried to map or destroy a non-topmost popup"/>
+      <entry name="invalid_popup_parent" value="3"
+	     summary="the client specified an invalid popup parent surface"/>
+      <entry name="invalid_surface_state" value="4"
+	     summary="the client provided an invalid surface state"/>
+      <entry name="invalid_positioner" value="5"
+	     summary="the client provided an invalid positioner"/>
+      <entry name="unresponsive" value="6"
+	     summary="the client didn’t respond to a ping event in time"/>
+    </enum>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy xdg_wm_base">
+	Destroy this xdg_wm_base object.
+
+	Destroying a bound xdg_wm_base object while there are surfaces
+	still alive created by this xdg_wm_base object instance is illegal
+	and will result in a defunct_surfaces error.
+      </description>
+    </request>
+
+    <request name="create_positioner">
+      <description summary="create a positioner object">
+	Create a positioner object. A positioner object is used to position
+	surfaces relative to some parent surface. See the interface description
+	and xdg_surface.get_popup for details.
+      </description>
+      <arg name="id" type="new_id" interface="xdg_positioner"/>
+    </request>
+
+    <request name="get_xdg_surface">
+      <description summary="create a shell surface from a surface">
+	This creates an xdg_surface for the given surface. While xdg_surface
+	itself is not a role, the corresponding surface may only be assigned
+	a role extending xdg_surface, such as xdg_toplevel or xdg_popup. It is
+	illegal to create an xdg_surface for a wl_surface which already has an
+	assigned role and this will result in a role error.
+
+	This creates an xdg_surface for the given surface. An xdg_surface is
+	used as basis to define a role to a given surface, such as xdg_toplevel
+	or xdg_popup. It also manages functionality shared between xdg_surface
+	based surface roles.
+
+	See the documentation of xdg_surface for more details about what an
+	xdg_surface is and how it is used.
+      </description>
+      <arg name="id" type="new_id" interface="xdg_surface"/>
+      <arg name="surface" type="object" interface="wl_surface"/>
+    </request>
+
+    <request name="pong">
+      <description summary="respond to a ping event">
+	A client must respond to a ping event with a pong request or
+	the client may be deemed unresponsive. See xdg_wm_base.ping
+	and xdg_wm_base.error.unresponsive.
+      </description>
+      <arg name="serial" type="uint" summary="serial of the ping event"/>
+    </request>
+
+    <event name="ping">
+      <description summary="check if the client is alive">
+	The ping event asks the client if it's still alive. Pass the
+	serial specified in the event back to the compositor by sending
+	a "pong" request back with the specified serial. See xdg_wm_base.pong.
+
+	Compositors can use this to determine if the client is still
+	alive. It's unspecified what will happen if the client doesn't
+	respond to the ping request, or in what timeframe. Clients should
+	try to respond in a reasonable amount of time. The “unresponsive”
+	error is provided for compositors that wish to disconnect unresponsive
+	clients.
+
+	A compositor is free to ping in any way it wants, but a client must
+	always respond to any xdg_wm_base object it created.
+      </description>
+      <arg name="serial" type="uint" summary="pass this to the pong request"/>
+    </event>
+  </interface>
+
+  <interface name="xdg_positioner" version="6">
+    <description summary="child surface positioner">
+      The xdg_positioner provides a collection of rules for the placement of a
+      child surface relative to a parent surface. Rules can be defined to ensure
+      the child surface remains within the visible area's borders, and to
+      specify how the child surface changes its position, such as sliding along
+      an axis, or flipping around a rectangle. These positioner-created rules are
+      constrained by the requirement that a child surface must intersect with or
+      be at least partially adjacent to its parent surface.
+
+      See the various requests for details about possible rules.
+
+      At the time of the request, the compositor makes a copy of the rules
+      specified by the xdg_positioner. Thus, after the request is complete the
+      xdg_positioner object can be destroyed or reused; further changes to the
+      object will have no effect on previous usages.
+
+      For an xdg_positioner object to be considered complete, it must have a
+      non-zero size set by set_size, and a non-zero anchor rectangle set by
+      set_anchor_rect. Passing an incomplete xdg_positioner object when
+      positioning a surface raises an invalid_positioner error.
+    </description>
+
+    <enum name="error">
+      <entry name="invalid_input" value="0" summary="invalid input provided"/>
+    </enum>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the xdg_positioner object">
+	Notify the compositor that the xdg_positioner will no longer be used.
+      </description>
+    </request>
+
+    <request name="set_size">
+      <description summary="set the size of the to-be positioned rectangle">
+	Set the size of the surface that is to be positioned with the positioner
+	object. The size is in surface-local coordinates and corresponds to the
+	window geometry. See xdg_surface.set_window_geometry.
+
+	If a zero or negative size is set the invalid_input error is raised.
+      </description>
+      <arg name="width" type="int" summary="width of positioned rectangle"/>
+      <arg name="height" type="int" summary="height of positioned rectangle"/>
+    </request>
+
+    <request name="set_anchor_rect">
+      <description summary="set the anchor rectangle within the parent surface">
+	Specify the anchor rectangle within the parent surface that the child
+	surface will be placed relative to. The rectangle is relative to the
+	window geometry as defined by xdg_surface.set_window_geometry of the
+	parent surface.
+
+	When the xdg_positioner object is used to position a child surface, the
+	anchor rectangle may not extend outside the window geometry of the
+	positioned child's parent surface.
+
+	If a negative size is set the invalid_input error is raised.
+      </description>
+      <arg name="x" type="int" summary="x position of anchor rectangle"/>
+      <arg name="y" type="int" summary="y position of anchor rectangle"/>
+      <arg name="width" type="int" summary="width of anchor rectangle"/>
+      <arg name="height" type="int" summary="height of anchor rectangle"/>
+    </request>
+
+    <enum name="anchor">
+      <entry name="none" value="0"/>
+      <entry name="top" value="1"/>
+      <entry name="bottom" value="2"/>
+      <entry name="left" value="3"/>
+      <entry name="right" value="4"/>
+      <entry name="top_left" value="5"/>
+      <entry name="bottom_left" value="6"/>
+      <entry name="top_right" value="7"/>
+      <entry name="bottom_right" value="8"/>
+    </enum>
+
+    <request name="set_anchor">
+      <description summary="set anchor rectangle anchor">
+	Defines the anchor point for the anchor rectangle. The specified anchor
+	is used derive an anchor point that the child surface will be
+	positioned relative to. If a corner anchor is set (e.g. 'top_left' or
+	'bottom_right'), the anchor point will be at the specified corner;
+	otherwise, the derived anchor point will be centered on the specified
+	edge, or in the center of the anchor rectangle if no edge is specified.
+      </description>
+      <arg name="anchor" type="uint" enum="anchor"
+	   summary="anchor"/>
+    </request>
+
+    <enum name="gravity">
+      <entry name="none" value="0"/>
+      <entry name="top" value="1"/>
+      <entry name="bottom" value="2"/>
+      <entry name="left" value="3"/>
+      <entry name="right" value="4"/>
+      <entry name="top_left" value="5"/>
+      <entry name="bottom_left" value="6"/>
+      <entry name="top_right" value="7"/>
+      <entry name="bottom_right" value="8"/>
+    </enum>
+
+    <request name="set_gravity">
+      <description summary="set child surface gravity">
+	Defines in what direction a surface should be positioned, relative to
+	the anchor point of the parent surface. If a corner gravity is
+	specified (e.g. 'bottom_right' or 'top_left'), then the child surface
+	will be placed towards the specified gravity; otherwise, the child
+	surface will be centered over the anchor point on any axis that had no
+	gravity specified. If the gravity is not in the ‘gravity’ enum, an
+	invalid_input error is raised.
+      </description>
+      <arg name="gravity" type="uint" enum="gravity"
+	   summary="gravity direction"/>
+    </request>
+
+    <enum name="constraint_adjustment" bitfield="true">
+      <description summary="constraint adjustments">
+	The constraint adjustment value define ways the compositor will adjust
+	the position of the surface, if the unadjusted position would result
+	in the surface being partly constrained.
+
+	Whether a surface is considered 'constrained' is left to the compositor
+	to determine. For example, the surface may be partly outside the
+	compositor's defined 'work area', thus necessitating the child surface's
+	position be adjusted until it is entirely inside the work area.
+
+	The adjustments can be combined, according to a defined precedence: 1)
+	Flip, 2) Slide, 3) Resize.
+      </description>
+      <entry name="none" value="0">
+	<description summary="don't move the child surface when constrained">
+	  Don't alter the surface position even if it is constrained on some
+	  axis, for example partially outside the edge of an output.
+	</description>
+      </entry>
+      <entry name="slide_x" value="1">
+	<description summary="move along the x axis until unconstrained">
+	  Slide the surface along the x axis until it is no longer constrained.
+
+	  First try to slide towards the direction of the gravity on the x axis
+	  until either the edge in the opposite direction of the gravity is
+	  unconstrained or the edge in the direction of the gravity is
+	  constrained.
+
+	  Then try to slide towards the opposite direction of the gravity on the
+	  x axis until either the edge in the direction of the gravity is
+	  unconstrained or the edge in the opposite direction of the gravity is
+	  constrained.
+	</description>
+      </entry>
+      <entry name="slide_y" value="2">
+	<description summary="move along the y axis until unconstrained">
+	  Slide the surface along the y axis until it is no longer constrained.
+
+	  First try to slide towards the direction of the gravity on the y axis
+	  until either the edge in the opposite direction of the gravity is
+	  unconstrained or the edge in the direction of the gravity is
+	  constrained.
+
+	  Then try to slide towards the opposite direction of the gravity on the
+	  y axis until either the edge in the direction of the gravity is
+	  unconstrained or the edge in the opposite direction of the gravity is
+	  constrained.
+	</description>
+      </entry>
+      <entry name="flip_x" value="4">
+	<description summary="invert the anchor and gravity on the x axis">
+	  Invert the anchor and gravity on the x axis if the surface is
+	  constrained on the x axis. For example, if the left edge of the
+	  surface is constrained, the gravity is 'left' and the anchor is
+	  'left', change the gravity to 'right' and the anchor to 'right'.
+
+	  If the adjusted position also ends up being constrained, the resulting
+	  position of the flip_x adjustment will be the one before the
+	  adjustment.
+	</description>
+      </entry>
+      <entry name="flip_y" value="8">
+	<description summary="invert the anchor and gravity on the y axis">
+	  Invert the anchor and gravity on the y axis if the surface is
+	  constrained on the y axis. For example, if the bottom edge of the
+	  surface is constrained, the gravity is 'bottom' and the anchor is
+	  'bottom', change the gravity to 'top' and the anchor to 'top'.
+
+	  The adjusted position is calculated given the original anchor
+	  rectangle and offset, but with the new flipped anchor and gravity
+	  values.
+
+	  If the adjusted position also ends up being constrained, the resulting
+	  position of the flip_y adjustment will be the one before the
+	  adjustment.
+	</description>
+      </entry>
+      <entry name="resize_x" value="16">
+	<description summary="horizontally resize the surface">
+	  Resize the surface horizontally so that it is completely
+	  unconstrained.
+	</description>
+      </entry>
+      <entry name="resize_y" value="32">
+	<description summary="vertically resize the surface">
+	  Resize the surface vertically so that it is completely unconstrained.
+	</description>
+      </entry>
+    </enum>
+
+    <request name="set_constraint_adjustment">
+      <description summary="set the adjustment to be done when constrained">
+	Specify how the window should be positioned if the originally intended
+	position caused the surface to be constrained, meaning at least
+	partially outside positioning boundaries set by the compositor. The
+	adjustment is set by constructing a bitmask describing the adjustment to
+	be made when the surface is constrained on that axis.
+
+	If no bit for one axis is set, the compositor will assume that the child
+	surface should not change its position on that axis when constrained.
+
+	If more than one bit for one axis is set, the order of how adjustments
+	are applied is specified in the corresponding adjustment descriptions.
+
+	The default adjustment is none.
+      </description>
+      <arg name="constraint_adjustment" type="uint"
+	   summary="bit mask of constraint adjustments"/>
+    </request>
+
+    <request name="set_offset">
+      <description summary="set surface position offset">
+	Specify the surface position offset relative to the position of the
+	anchor on the anchor rectangle and the anchor on the surface. For
+	example if the anchor of the anchor rectangle is at (x, y), the surface
+	has the gravity bottom|right, and the offset is (ox, oy), the calculated
+	surface position will be (x + ox, y + oy). The offset position of the
+	surface is the one used for constraint testing. See
+	set_constraint_adjustment.
+
+	An example use case is placing a popup menu on top of a user interface
+	element, while aligning the user interface element of the parent surface
+	with some user interface element placed somewhere in the popup surface.
+      </description>
+      <arg name="x" type="int" summary="surface position x offset"/>
+      <arg name="y" type="int" summary="surface position y offset"/>
+    </request>
+
+    <!-- Version 3 additions -->
+
+    <request name="set_reactive" since="3">
+      <description summary="continuously reconstrain the surface">
+	When set reactive, the surface is reconstrained if the conditions used
+	for constraining changed, e.g. the parent window moved.
+
+	If the conditions changed and the popup was reconstrained, an
+	xdg_popup.configure event is sent with updated geometry, followed by an
+	xdg_surface.configure event.
+      </description>
+    </request>
+
+    <request name="set_parent_size" since="3">
+      <description summary="">
+	Set the parent window geometry the compositor should use when
+	positioning the popup. The compositor may use this information to
+	determine the future state the popup should be constrained using. If
+	this doesn't match the dimension of the parent the popup is eventually
+	positioned against, the behavior is undefined.
+
+	The arguments are given in the surface-local coordinate space.
+      </description>
+      <arg name="parent_width" type="int"
+	   summary="future window geometry width of parent"/>
+      <arg name="parent_height" type="int"
+	   summary="future window geometry height of parent"/>
+    </request>
+
+    <request name="set_parent_configure" since="3">
+      <description summary="set parent configure this is a response to">
+	Set the serial of an xdg_surface.configure event this positioner will be
+	used in response to. The compositor may use this information together
+	with set_parent_size to determine what future state the popup should be
+	constrained using.
+      </description>
+      <arg name="serial" type="uint"
+	   summary="serial of parent configure event"/>
+    </request>
+  </interface>
+
+  <interface name="xdg_surface" version="6">
+    <description summary="desktop user interface surface base interface">
+      An interface that may be implemented by a wl_surface, for
+      implementations that provide a desktop-style user interface.
+
+      It provides a base set of functionality required to construct user
+      interface elements requiring management by the compositor, such as
+      toplevel windows, menus, etc. The types of functionality are split into
+      xdg_surface roles.
+
+      Creating an xdg_surface does not set the role for a wl_surface. In order
+      to map an xdg_surface, the client must create a role-specific object
+      using, e.g., get_toplevel, get_popup. The wl_surface for any given
+      xdg_surface can have at most one role, and may not be assigned any role
+      not based on xdg_surface.
+
+      A role must be assigned before any other requests are made to the
+      xdg_surface object.
+
+      The client must call wl_surface.commit on the corresponding wl_surface
+      for the xdg_surface state to take effect.
+
+      Creating an xdg_surface from a wl_surface which has a buffer attached or
+      committed is a client error, and any attempts by a client to attach or
+      manipulate a buffer prior to the first xdg_surface.configure call must
+      also be treated as errors.
+
+      After creating a role-specific object and setting it up, the client must
+      perform an initial commit without any buffer attached. The compositor
+      will reply with initial wl_surface state such as
+      wl_surface.preferred_buffer_scale followed by an xdg_surface.configure
+      event. The client must acknowledge it and is then allowed to attach a
+      buffer to map the surface.
+
+      Mapping an xdg_surface-based role surface is defined as making it
+      possible for the surface to be shown by the compositor. Note that
+      a mapped surface is not guaranteed to be visible once it is mapped.
+
+      For an xdg_surface to be mapped by the compositor, the following
+      conditions must be met:
+      (1) the client has assigned an xdg_surface-based role to the surface
+      (2) the client has set and committed the xdg_surface state and the
+	  role-dependent state to the surface
+      (3) the client has committed a buffer to the surface
+
+      A newly-unmapped surface is considered to have met condition (1) out
+      of the 3 required conditions for mapping a surface if its role surface
+      has not been destroyed, i.e. the client must perform the initial commit
+      again before attaching a buffer.
+    </description>
+
+    <enum name="error">
+      <entry name="not_constructed" value="1"
+	     summary="Surface was not fully constructed"/>
+      <entry name="already_constructed" value="2"
+	     summary="Surface was already constructed"/>
+      <entry name="unconfigured_buffer" value="3"
+	     summary="Attaching a buffer to an unconfigured surface"/>
+      <entry name="invalid_serial" value="4"
+	     summary="Invalid serial number when acking a configure event"/>
+      <entry name="invalid_size" value="5"
+	     summary="Width or height was zero or negative"/>
+      <entry name="defunct_role_object" value="6"
+	     summary="Surface was destroyed before its role object"/>
+    </enum>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the xdg_surface">
+	Destroy the xdg_surface object. An xdg_surface must only be destroyed
+	after its role object has been destroyed, otherwise
+	a defunct_role_object error is raised.
+      </description>
+    </request>
+
+    <request name="get_toplevel">
+      <description summary="assign the xdg_toplevel surface role">
+	This creates an xdg_toplevel object for the given xdg_surface and gives
+	the associated wl_surface the xdg_toplevel role.
+
+	See the documentation of xdg_toplevel for more details about what an
+	xdg_toplevel is and how it is used.
+      </description>
+      <arg name="id" type="new_id" interface="xdg_toplevel"/>
+    </request>
+
+    <request name="get_popup">
+      <description summary="assign the xdg_popup surface role">
+	This creates an xdg_popup object for the given xdg_surface and gives
+	the associated wl_surface the xdg_popup role.
+
+	If null is passed as a parent, a parent surface must be specified using
+	some other protocol, before committing the initial state.
+
+	See the documentation of xdg_popup for more details about what an
+	xdg_popup is and how it is used.
+      </description>
+      <arg name="id" type="new_id" interface="xdg_popup"/>
+      <arg name="parent" type="object" interface="xdg_surface" allow-null="true"/>
+      <arg name="positioner" type="object" interface="xdg_positioner"/>
+    </request>
+
+    <request name="set_window_geometry">
+      <description summary="set the new window geometry">
+	The window geometry of a surface is its "visible bounds" from the
+	user's perspective. Client-side decorations often have invisible
+	portions like drop-shadows which should be ignored for the
+	purposes of aligning, placing and constraining windows.
+
+	The window geometry is double buffered, and will be applied at the
+	time wl_surface.commit of the corresponding wl_surface is called.
+
+	When maintaining a position, the compositor should treat the (x, y)
+	coordinate of the window geometry as the top left corner of the window.
+	A client changing the (x, y) window geometry coordinate should in
+	general not alter the position of the window.
+
+	Once the window geometry of the surface is set, it is not possible to
+	unset it, and it will remain the same until set_window_geometry is
+	called again, even if a new subsurface or buffer is attached.
+
+	If never set, the value is the full bounds of the surface,
+	including any subsurfaces. This updates dynamically on every
+	commit. This unset is meant for extremely simple clients.
+
+	The arguments are given in the surface-local coordinate space of
+	the wl_surface associated with this xdg_surface, and may extend outside
+	of the wl_surface itself to mark parts of the subsurface tree as part of
+	the window geometry.
+
+	When applied, the effective window geometry will be the set window
+	geometry clamped to the bounding rectangle of the combined
+	geometry of the surface of the xdg_surface and the associated
+	subsurfaces.
+
+	The effective geometry will not be recalculated unless a new call to
+	set_window_geometry is done and the new pending surface state is
+	subsequently applied.
+
+	The width and height of the effective window geometry must be
+	greater than zero. Setting an invalid size will raise an
+	invalid_size error.
+      </description>
+      <arg name="x" type="int"/>
+      <arg name="y" type="int"/>
+      <arg name="width" type="int"/>
+      <arg name="height" type="int"/>
+    </request>
+
+    <request name="ack_configure">
+      <description summary="ack a configure event">
+	When a configure event is received, if a client commits the
+	surface in response to the configure event, then the client
+	must make an ack_configure request sometime before the commit
+	request, passing along the serial of the configure event.
+
+	For instance, for toplevel surfaces the compositor might use this
+	information to move a surface to the top left only when the client has
+	drawn itself for the maximized or fullscreen state.
+
+	If the client receives multiple configure events before it
+	can respond to one, it only has to ack the last configure event.
+	Acking a configure event that was never sent raises an invalid_serial
+	error.
+
+	A client is not required to commit immediately after sending
+	an ack_configure request - it may even ack_configure several times
+	before its next surface commit.
+
+	A client may send multiple ack_configure requests before committing, but
+	only the last request sent before a commit indicates which configure
+	event the client really is responding to.
+
+	Sending an ack_configure request consumes the serial number sent with
+	the request, as well as serial numbers sent by all configure events
+	sent on this xdg_surface prior to the configure event referenced by
+	the committed serial.
+
+	It is an error to issue multiple ack_configure requests referencing a
+	serial from the same configure event, or to issue an ack_configure
+	request referencing a serial from a configure event issued before the
+	event identified by the last ack_configure request for the same
+	xdg_surface. Doing so will raise an invalid_serial error.
+      </description>
+      <arg name="serial" type="uint" summary="the serial from the configure event"/>
+    </request>
+
+    <event name="configure">
+      <description summary="suggest a surface change">
+	The configure event marks the end of a configure sequence. A configure
+	sequence is a set of one or more events configuring the state of the
+	xdg_surface, including the final xdg_surface.configure event.
+
+	Where applicable, xdg_surface surface roles will during a configure
+	sequence extend this event as a latched state sent as events before the
+	xdg_surface.configure event. Such events should be considered to make up
+	a set of atomically applied configuration states, where the
+	xdg_surface.configure commits the accumulated state.
+
+	Clients should arrange their surface for the new states, and then send
+	an ack_configure request with the serial sent in this configure event at
+	some point before committing the new surface.
+
+	If the client receives multiple configure events before it can respond
+	to one, it is free to discard all but the last event it received.
+      </description>
+      <arg name="serial" type="uint" summary="serial of the configure event"/>
+    </event>
+
+  </interface>
+
+  <interface name="xdg_toplevel" version="6">
+    <description summary="toplevel surface">
+      This interface defines an xdg_surface role which allows a surface to,
+      among other things, set window-like properties such as maximize,
+      fullscreen, and minimize, set application-specific metadata like title and
+      id, and well as trigger user interactive operations such as interactive
+      resize and move.
+
+      Unmapping an xdg_toplevel means that the surface cannot be shown
+      by the compositor until it is explicitly mapped again.
+      All active operations (e.g., move, resize) are canceled and all
+      attributes (e.g. title, state, stacking, ...) are discarded for
+      an xdg_toplevel surface when it is unmapped. The xdg_toplevel returns to
+      the state it had right after xdg_surface.get_toplevel. The client
+      can re-map the toplevel by perfoming a commit without any buffer
+      attached, waiting for a configure event and handling it as usual (see
+      xdg_surface description).
+
+      Attaching a null buffer to a toplevel unmaps the surface.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the xdg_toplevel">
+	This request destroys the role surface and unmaps the surface;
+	see "Unmapping" behavior in interface section for details.
+      </description>
+    </request>
+
+    <enum name="error">
+      <entry name="invalid_resize_edge" value="0" summary="provided value is
+        not a valid variant of the resize_edge enum"/>
+      <entry name="invalid_parent" value="1"
+        summary="invalid parent toplevel"/>
+      <entry name="invalid_size" value="2"
+	summary="client provided an invalid min or max size"/>
+    </enum>
+
+    <request name="set_parent">
+      <description summary="set the parent of this surface">
+	Set the "parent" of this surface. This surface should be stacked
+	above the parent surface and all other ancestor surfaces.
+
+	Parent surfaces should be set on dialogs, toolboxes, or other
+	"auxiliary" surfaces, so that the parent is raised when the dialog
+	is raised.
+
+	Setting a null parent for a child surface unsets its parent. Setting
+	a null parent for a surface which currently has no parent is a no-op.
+
+	Only mapped surfaces can have child surfaces. Setting a parent which
+	is not mapped is equivalent to setting a null parent. If a surface
+	becomes unmapped, its children's parent is set to the parent of
+	the now-unmapped surface. If the now-unmapped surface has no parent,
+	its children's parent is unset. If the now-unmapped surface becomes
+	mapped again, its parent-child relationship is not restored.
+
+	The parent toplevel must not be one of the child toplevel's
+	descendants, and the parent must be different from the child toplevel,
+	otherwise the invalid_parent protocol error is raised.
+      </description>
+      <arg name="parent" type="object" interface="xdg_toplevel" allow-null="true"/>
+    </request>
+
+    <request name="set_title">
+      <description summary="set surface title">
+	Set a short title for the surface.
+
+	This string may be used to identify the surface in a task bar,
+	window list, or other user interface elements provided by the
+	compositor.
+
+	The string must be encoded in UTF-8.
+      </description>
+      <arg name="title" type="string"/>
+    </request>
+
+    <request name="set_app_id">
+      <description summary="set application ID">
+	Set an application identifier for the surface.
+
+	The app ID identifies the general class of applications to which
+	the surface belongs. The compositor can use this to group multiple
+	surfaces together, or to determine how to launch a new application.
+
+	For D-Bus activatable applications, the app ID is used as the D-Bus
+	service name.
+
+	The compositor shell will try to group application surfaces together
+	by their app ID. As a best practice, it is suggested to select app
+	ID's that match the basename of the application's .desktop file.
+	For example, "org.freedesktop.FooViewer" where the .desktop file is
+	"org.freedesktop.FooViewer.desktop".
+
+	Like other properties, a set_app_id request can be sent after the
+	xdg_toplevel has been mapped to update the property.
+
+	See the desktop-entry specification [0] for more details on
+	application identifiers and how they relate to well-known D-Bus
+	names and .desktop files.
+
+	[0] https://standards.freedesktop.org/desktop-entry-spec/
+      </description>
+      <arg name="app_id" type="string"/>
+    </request>
+
+    <request name="show_window_menu">
+      <description summary="show the window menu">
+	Clients implementing client-side decorations might want to show
+	a context menu when right-clicking on the decorations, giving the
+	user a menu that they can use to maximize or minimize the window.
+
+	This request asks the compositor to pop up such a window menu at
+	the given position, relative to the local surface coordinates of
+	the parent surface. There are no guarantees as to what menu items
+	the window menu contains, or even if a window menu will be drawn
+	at all.
+
+	This request must be used in response to some sort of user action
+	like a button press, key press, or touch down event.
+      </description>
+      <arg name="seat" type="object" interface="wl_seat" summary="the wl_seat of the user event"/>
+      <arg name="serial" type="uint" summary="the serial of the user event"/>
+      <arg name="x" type="int" summary="the x position to pop up the window menu at"/>
+      <arg name="y" type="int" summary="the y position to pop up the window menu at"/>
+    </request>
+
+    <request name="move">
+      <description summary="start an interactive move">
+	Start an interactive, user-driven move of the surface.
+
+	This request must be used in response to some sort of user action
+	like a button press, key press, or touch down event. The passed
+	serial is used to determine the type of interactive move (touch,
+	pointer, etc).
+
+	The server may ignore move requests depending on the state of
+	the surface (e.g. fullscreen or maximized), or if the passed serial
+	is no longer valid.
+
+	If triggered, the surface will lose the focus of the device
+	(wl_pointer, wl_touch, etc) used for the move. It is up to the
+	compositor to visually indicate that the move is taking place, such as
+	updating a pointer cursor, during the move. There is no guarantee
+	that the device focus will return when the move is completed.
+      </description>
+      <arg name="seat" type="object" interface="wl_seat" summary="the wl_seat of the user event"/>
+      <arg name="serial" type="uint" summary="the serial of the user event"/>
+    </request>
+
+    <enum name="resize_edge">
+      <description summary="edge values for resizing">
+	These values are used to indicate which edge of a surface
+	is being dragged in a resize operation.
+      </description>
+      <entry name="none" value="0"/>
+      <entry name="top" value="1"/>
+      <entry name="bottom" value="2"/>
+      <entry name="left" value="4"/>
+      <entry name="top_left" value="5"/>
+      <entry name="bottom_left" value="6"/>
+      <entry name="right" value="8"/>
+      <entry name="top_right" value="9"/>
+      <entry name="bottom_right" value="10"/>
+    </enum>
+
+    <request name="resize">
+      <description summary="start an interactive resize">
+	Start a user-driven, interactive resize of the surface.
+
+	This request must be used in response to some sort of user action
+	like a button press, key press, or touch down event. The passed
+	serial is used to determine the type of interactive resize (touch,
+	pointer, etc).
+
+	The server may ignore resize requests depending on the state of
+	the surface (e.g. fullscreen or maximized).
+
+	If triggered, the client will receive configure events with the
+	"resize" state enum value and the expected sizes. See the "resize"
+	enum value for more details about what is required. The client
+	must also acknowledge configure events using "ack_configure". After
+	the resize is completed, the client will receive another "configure"
+	event without the resize state.
+
+	If triggered, the surface also will lose the focus of the device
+	(wl_pointer, wl_touch, etc) used for the resize. It is up to the
+	compositor to visually indicate that the resize is taking place,
+	such as updating a pointer cursor, during the resize. There is no
+	guarantee that the device focus will return when the resize is
+	completed.
+
+	The edges parameter specifies how the surface should be resized, and
+	is one of the values of the resize_edge enum. Values not matching
+	a variant of the enum will cause the invalid_resize_edge protocol error.
+	The compositor may use this information to update the surface position
+	for example when dragging the top left corner. The compositor may also
+	use this information to adapt its behavior, e.g. choose an appropriate
+	cursor image.
+      </description>
+      <arg name="seat" type="object" interface="wl_seat" summary="the wl_seat of the user event"/>
+      <arg name="serial" type="uint" summary="the serial of the user event"/>
+      <arg name="edges" type="uint" enum="resize_edge" summary="which edge or corner is being dragged"/>
+    </request>
+
+    <enum name="state">
+      <description summary="types of state on the surface">
+	The different state values used on the surface. This is designed for
+	state values like maximized, fullscreen. It is paired with the
+	configure event to ensure that both the client and the compositor
+	setting the state can be synchronized.
+
+	States set in this way are double-buffered. They will get applied on
+	the next commit.
+      </description>
+      <entry name="maximized" value="1" summary="the surface is maximized">
+	<description summary="the surface is maximized">
+	  The surface is maximized. The window geometry specified in the configure
+	  event must be obeyed by the client, or the xdg_wm_base.invalid_surface_state
+	  error is raised.
+
+	  The client should draw without shadow or other
+	  decoration outside of the window geometry.
+	</description>
+      </entry>
+      <entry name="fullscreen" value="2" summary="the surface is fullscreen">
+	<description summary="the surface is fullscreen">
+	  The surface is fullscreen. The window geometry specified in the
+	  configure event is a maximum; the client cannot resize beyond it. For
+	  a surface to cover the whole fullscreened area, the geometry
+	  dimensions must be obeyed by the client. For more details, see
+	  xdg_toplevel.set_fullscreen.
+	</description>
+      </entry>
+      <entry name="resizing" value="3" summary="the surface is being resized">
+	<description summary="the surface is being resized">
+	  The surface is being resized. The window geometry specified in the
+	  configure event is a maximum; the client cannot resize beyond it.
+	  Clients that have aspect ratio or cell sizing configuration can use
+	  a smaller size, however.
+	</description>
+      </entry>
+      <entry name="activated" value="4" summary="the surface is now activated">
+	<description summary="the surface is now activated">
+	  Client window decorations should be painted as if the window is
+	  active. Do not assume this means that the window actually has
+	  keyboard or pointer focus.
+	</description>
+      </entry>
+      <entry name="tiled_left" value="5" since="2">
+	<description summary="the surface’s left edge is tiled">
+	  The window is currently in a tiled layout and the left edge is
+	  considered to be adjacent to another part of the tiling grid.
+	</description>
+      </entry>
+      <entry name="tiled_right" value="6" since="2">
+	<description summary="the surface’s right edge is tiled">
+	  The window is currently in a tiled layout and the right edge is
+	  considered to be adjacent to another part of the tiling grid.
+	</description>
+      </entry>
+      <entry name="tiled_top" value="7" since="2">
+	<description summary="the surface’s top edge is tiled">
+	  The window is currently in a tiled layout and the top edge is
+	  considered to be adjacent to another part of the tiling grid.
+	</description>
+      </entry>
+      <entry name="tiled_bottom" value="8" since="2">
+	<description summary="the surface’s bottom edge is tiled">
+	  The window is currently in a tiled layout and the bottom edge is
+	  considered to be adjacent to another part of the tiling grid.
+	</description>
+      </entry>
+      <entry name="suspended" value="9" since="6">
+        <description summary="surface repaint is suspended">
+	  The surface is currently not ordinarily being repainted; for
+	  example because its content is occluded by another window, or its
+	  outputs are switched off due to screen locking.
+	</description>
+      </entry>
+    </enum>
+
+    <request name="set_max_size">
+      <description summary="set the maximum size">
+	Set a maximum size for the window.
+
+	The client can specify a maximum size so that the compositor does
+	not try to configure the window beyond this size.
+
+	The width and height arguments are in window geometry coordinates.
+	See xdg_surface.set_window_geometry.
+
+	Values set in this way are double-buffered. They will get applied
+	on the next commit.
+
+	The compositor can use this information to allow or disallow
+	different states like maximize or fullscreen and draw accurate
+	animations.
+
+	Similarly, a tiling window manager may use this information to
+	place and resize client windows in a more effective way.
+
+	The client should not rely on the compositor to obey the maximum
+	size. The compositor may decide to ignore the values set by the
+	client and request a larger size.
+
+	If never set, or a value of zero in the request, means that the
+	client has no expected maximum size in the given dimension.
+	As a result, a client wishing to reset the maximum size
+	to an unspecified state can use zero for width and height in the
+	request.
+
+	Requesting a maximum size to be smaller than the minimum size of
+	a surface is illegal and will result in an invalid_size error.
+
+	The width and height must be greater than or equal to zero. Using
+	strictly negative values for width or height will result in a
+	invalid_size error.
+      </description>
+      <arg name="width" type="int"/>
+      <arg name="height" type="int"/>
+    </request>
+
+    <request name="set_min_size">
+      <description summary="set the minimum size">
+	Set a minimum size for the window.
+
+	The client can specify a minimum size so that the compositor does
+	not try to configure the window below this size.
+
+	The width and height arguments are in window geometry coordinates.
+	See xdg_surface.set_window_geometry.
+
+	Values set in this way are double-buffered. They will get applied
+	on the next commit.
+
+	The compositor can use this information to allow or disallow
+	different states like maximize or fullscreen and draw accurate
+	animations.
+
+	Similarly, a tiling window manager may use this information to
+	place and resize client windows in a more effective way.
+
+	The client should not rely on the compositor to obey the minimum
+	size. The compositor may decide to ignore the values set by the
+	client and request a smaller size.
+
+	If never set, or a value of zero in the request, means that the
+	client has no expected minimum size in the given dimension.
+	As a result, a client wishing to reset the minimum size
+	to an unspecified state can use zero for width and height in the
+	request.
+
+	Requesting a minimum size to be larger than the maximum size of
+	a surface is illegal and will result in an invalid_size error.
+
+	The width and height must be greater than or equal to zero. Using
+	strictly negative values for width and height will result in a
+	invalid_size error.
+      </description>
+      <arg name="width" type="int"/>
+      <arg name="height" type="int"/>
+    </request>
+
+    <request name="set_maximized">
+      <description summary="maximize the window">
+	Maximize the surface.
+
+	After requesting that the surface should be maximized, the compositor
+	will respond by emitting a configure event. Whether this configure
+	actually sets the window maximized is subject to compositor policies.
+	The client must then update its content, drawing in the configured
+	state. The client must also acknowledge the configure when committing
+	the new content (see ack_configure).
+
+	It is up to the compositor to decide how and where to maximize the
+	surface, for example which output and what region of the screen should
+	be used.
+
+	If the surface was already maximized, the compositor will still emit
+	a configure event with the "maximized" state.
+
+	If the surface is in a fullscreen state, this request has no direct
+	effect. It may alter the state the surface is returned to when
+	unmaximized unless overridden by the compositor.
+      </description>
+    </request>
+
+    <request name="unset_maximized">
+      <description summary="unmaximize the window">
+	Unmaximize the surface.
+
+	After requesting that the surface should be unmaximized, the compositor
+	will respond by emitting a configure event. Whether this actually
+	un-maximizes the window is subject to compositor policies.
+	If available and applicable, the compositor will include the window
+	geometry dimensions the window had prior to being maximized in the
+	configure event. The client must then update its content, drawing it in
+	the configured state. The client must also acknowledge the configure
+	when committing the new content (see ack_configure).
+
+	It is up to the compositor to position the surface after it was
+	unmaximized; usually the position the surface had before maximizing, if
+	applicable.
+
+	If the surface was already not maximized, the compositor will still
+	emit a configure event without the "maximized" state.
+
+	If the surface is in a fullscreen state, this request has no direct
+	effect. It may alter the state the surface is returned to when
+	unmaximized unless overridden by the compositor.
+      </description>
+    </request>
+
+    <request name="set_fullscreen">
+      <description summary="set the window as fullscreen on an output">
+	Make the surface fullscreen.
+
+	After requesting that the surface should be fullscreened, the
+	compositor will respond by emitting a configure event. Whether the
+	client is actually put into a fullscreen state is subject to compositor
+	policies. The client must also acknowledge the configure when
+	committing the new content (see ack_configure).
+
+	The output passed by the request indicates the client's preference as
+	to which display it should be set fullscreen on. If this value is NULL,
+	it's up to the compositor to choose which display will be used to map
+	this surface.
+
+	If the surface doesn't cover the whole output, the compositor will
+	position the surface in the center of the output and compensate with
+	with border fill covering the rest of the output. The content of the
+	border fill is undefined, but should be assumed to be in some way that
+	attempts to blend into the surrounding area (e.g. solid black).
+
+	If the fullscreened surface is not opaque, the compositor must make
+	sure that other screen content not part of the same surface tree (made
+	up of subsurfaces, popups or similarly coupled surfaces) are not
+	visible below the fullscreened surface.
+      </description>
+      <arg name="output" type="object" interface="wl_output" allow-null="true"/>
+    </request>
+
+    <request name="unset_fullscreen">
+      <description summary="unset the window as fullscreen">
+	Make the surface no longer fullscreen.
+
+	After requesting that the surface should be unfullscreened, the
+	compositor will respond by emitting a configure event.
+	Whether this actually removes the fullscreen state of the client is
+	subject to compositor policies.
+
+	Making a surface unfullscreen sets states for the surface based on the following:
+	* the state(s) it may have had before becoming fullscreen
+	* any state(s) decided by the compositor
+	* any state(s) requested by the client while the surface was fullscreen
+
+	The compositor may include the previous window geometry dimensions in
+	the configure event, if applicable.
+
+	The client must also acknowledge the configure when committing the new
+	content (see ack_configure).
+      </description>
+    </request>
+
+    <request name="set_minimized">
+      <description summary="set the window as minimized">
+	Request that the compositor minimize your surface. There is no
+	way to know if the surface is currently minimized, nor is there
+	any way to unset minimization on this surface.
+
+	If you are looking to throttle redrawing when minimized, please
+	instead use the wl_surface.frame event for this, as this will
+	also work with live previews on windows in Alt-Tab, Expose or
+	similar compositor features.
+      </description>
+    </request>
+
+    <event name="configure">
+      <description summary="suggest a surface change">
+	This configure event asks the client to resize its toplevel surface or
+	to change its state. The configured state should not be applied
+	immediately. See xdg_surface.configure for details.
+
+	The width and height arguments specify a hint to the window
+	about how its surface should be resized in window geometry
+	coordinates. See set_window_geometry.
+
+	If the width or height arguments are zero, it means the client
+	should decide its own window dimension. This may happen when the
+	compositor needs to configure the state of the surface but doesn't
+	have any information about any previous or expected dimension.
+
+	The states listed in the event specify how the width/height
+	arguments should be interpreted, and possibly how it should be
+	drawn.
+
+	Clients must send an ack_configure in response to this event. See
+	xdg_surface.configure and xdg_surface.ack_configure for details.
+      </description>
+      <arg name="width" type="int"/>
+      <arg name="height" type="int"/>
+      <arg name="states" type="array"/>
+    </event>
+
+    <event name="close">
+      <description summary="surface wants to be closed">
+	The close event is sent by the compositor when the user
+	wants the surface to be closed. This should be equivalent to
+	the user clicking the close button in client-side decorations,
+	if your application has any.
+
+	This is only a request that the user intends to close the
+	window. The client may choose to ignore this request, or show
+	a dialog to ask the user to save their data, etc.
+      </description>
+    </event>
+
+    <!-- Version 4 additions -->
+
+    <event name="configure_bounds" since="4">
+      <description summary="recommended window geometry bounds">
+	The configure_bounds event may be sent prior to a xdg_toplevel.configure
+	event to communicate the bounds a window geometry size is recommended
+	to constrain to.
+
+	The passed width and height are in surface coordinate space. If width
+	and height are 0, it means bounds is unknown and equivalent to as if no
+	configure_bounds event was ever sent for this surface.
+
+	The bounds can for example correspond to the size of a monitor excluding
+	any panels or other shell components, so that a surface isn't created in
+	a way that it cannot fit.
+
+	The bounds may change at any point, and in such a case, a new
+	xdg_toplevel.configure_bounds will be sent, followed by
+	xdg_toplevel.configure and xdg_surface.configure.
+      </description>
+      <arg name="width" type="int"/>
+      <arg name="height" type="int"/>
+    </event>
+
+    <!-- Version 5 additions -->
+
+    <enum name="wm_capabilities" since="5">
+      <entry name="window_menu" value="1" summary="show_window_menu is available"/>
+      <entry name="maximize" value="2" summary="set_maximized and unset_maximized are available"/>
+      <entry name="fullscreen" value="3" summary="set_fullscreen and unset_fullscreen are available"/>
+      <entry name="minimize" value="4" summary="set_minimized is available"/>
+    </enum>
+
+    <event name="wm_capabilities" since="5">
+      <description summary="compositor capabilities">
+	This event advertises the capabilities supported by the compositor. If
+	a capability isn't supported, clients should hide or disable the UI
+	elements that expose this functionality. For instance, if the
+	compositor doesn't advertise support for minimized toplevels, a button
+	triggering the set_minimized request should not be displayed.
+
+	The compositor will ignore requests it doesn't support. For instance,
+	a compositor which doesn't advertise support for minimized will ignore
+	set_minimized requests.
+
+	Compositors must send this event once before the first
+	xdg_surface.configure event. When the capabilities change, compositors
+	must send this event again and then send an xdg_surface.configure
+	event.
+
+	The configured state should not be applied immediately. See
+	xdg_surface.configure for details.
+
+	The capabilities are sent as an array of 32-bit unsigned integers in
+	native endianness.
+      </description>
+      <arg name="capabilities" type="array" summary="array of 32-bit capabilities"/>
+    </event>
+  </interface>
+
+  <interface name="xdg_popup" version="6">
+    <description summary="short-lived, popup surfaces for menus">
+      A popup surface is a short-lived, temporary surface. It can be used to
+      implement for example menus, popovers, tooltips and other similar user
+      interface concepts.
+
+      A popup can be made to take an explicit grab. See xdg_popup.grab for
+      details.
+
+      When the popup is dismissed, a popup_done event will be sent out, and at
+      the same time the surface will be unmapped. See the xdg_popup.popup_done
+      event for details.
+
+      Explicitly destroying the xdg_popup object will also dismiss the popup and
+      unmap the surface. Clients that want to dismiss the popup when another
+      surface of their own is clicked should dismiss the popup using the destroy
+      request.
+
+      A newly created xdg_popup will be stacked on top of all previously created
+      xdg_popup surfaces associated with the same xdg_toplevel.
+
+      The parent of an xdg_popup must be mapped (see the xdg_surface
+      description) before the xdg_popup itself.
+
+      The client must call wl_surface.commit on the corresponding wl_surface
+      for the xdg_popup state to take effect.
+    </description>
+
+    <enum name="error">
+      <entry name="invalid_grab" value="0"
+	     summary="tried to grab after being mapped"/>
+    </enum>
+
+    <request name="destroy" type="destructor">
+      <description summary="remove xdg_popup interface">
+	This destroys the popup. Explicitly destroying the xdg_popup
+	object will also dismiss the popup, and unmap the surface.
+
+	If this xdg_popup is not the "topmost" popup, the
+	xdg_wm_base.not_the_topmost_popup protocol error will be sent.
+      </description>
+    </request>
+
+    <request name="grab">
+      <description summary="make the popup take an explicit grab">
+	This request makes the created popup take an explicit grab. An explicit
+	grab will be dismissed when the user dismisses the popup, or when the
+	client destroys the xdg_popup. This can be done by the user clicking
+	outside the surface, using the keyboard, or even locking the screen
+	through closing the lid or a timeout.
+
+	If the compositor denies the grab, the popup will be immediately
+	dismissed.
+
+	This request must be used in response to some sort of user action like a
+	button press, key press, or touch down event. The serial number of the
+	event should be passed as 'serial'.
+
+	The parent of a grabbing popup must either be an xdg_toplevel surface or
+	another xdg_popup with an explicit grab. If the parent is another
+	xdg_popup it means that the popups are nested, with this popup now being
+	the topmost popup.
+
+	Nested popups must be destroyed in the reverse order they were created
+	in, e.g. the only popup you are allowed to destroy at all times is the
+	topmost one.
+
+	When compositors choose to dismiss a popup, they may dismiss every
+	nested grabbing popup as well. When a compositor dismisses popups, it
+	will follow the same dismissing order as required from the client.
+
+	If the topmost grabbing popup is destroyed, the grab will be returned to
+	the parent of the popup, if that parent previously had an explicit grab.
+
+	If the parent is a grabbing popup which has already been dismissed, this
+	popup will be immediately dismissed. If the parent is a popup that did
+	not take an explicit grab, an error will be raised.
+
+	During a popup grab, the client owning the grab will receive pointer
+	and touch events for all their surfaces as normal (similar to an
+	"owner-events" grab in X11 parlance), while the top most grabbing popup
+	will always have keyboard focus.
+      </description>
+      <arg name="seat" type="object" interface="wl_seat"
+	   summary="the wl_seat of the user event"/>
+      <arg name="serial" type="uint" summary="the serial of the user event"/>
+    </request>
+
+    <event name="configure">
+      <description summary="configure the popup surface">
+	This event asks the popup surface to configure itself given the
+	configuration. The configured state should not be applied immediately.
+	See xdg_surface.configure for details.
+
+	The x and y arguments represent the position the popup was placed at
+	given the xdg_positioner rule, relative to the upper left corner of the
+	window geometry of the parent surface.
+
+	For version 2 or older, the configure event for an xdg_popup is only
+	ever sent once for the initial configuration. Starting with version 3,
+	it may be sent again if the popup is setup with an xdg_positioner with
+	set_reactive requested, or in response to xdg_popup.reposition requests.
+      </description>
+      <arg name="x" type="int"
+	   summary="x position relative to parent surface window geometry"/>
+      <arg name="y" type="int"
+	   summary="y position relative to parent surface window geometry"/>
+      <arg name="width" type="int" summary="window geometry width"/>
+      <arg name="height" type="int" summary="window geometry height"/>
+    </event>
+
+    <event name="popup_done">
+      <description summary="popup interaction is done">
+	The popup_done event is sent out when a popup is dismissed by the
+	compositor. The client should destroy the xdg_popup object at this
+	point.
+      </description>
+    </event>
+
+    <!-- Version 3 additions -->
+
+    <request name="reposition" since="3">
+      <description summary="recalculate the popup's location">
+	Reposition an already-mapped popup. The popup will be placed given the
+	details in the passed xdg_positioner object, and a
+	xdg_popup.repositioned followed by xdg_popup.configure and
+	xdg_surface.configure will be emitted in response. Any parameters set
+	by the previous positioner will be discarded.
+
+	The passed token will be sent in the corresponding
+	xdg_popup.repositioned event. The new popup position will not take
+	effect until the corresponding configure event is acknowledged by the
+	client. See xdg_popup.repositioned for details. The token itself is
+	opaque, and has no other special meaning.
+
+	If multiple reposition requests are sent, the compositor may skip all
+	but the last one.
+
+	If the popup is repositioned in response to a configure event for its
+	parent, the client should send an xdg_positioner.set_parent_configure
+	and possibly an xdg_positioner.set_parent_size request to allow the
+	compositor to properly constrain the popup.
+
+	If the popup is repositioned together with a parent that is being
+	resized, but not in response to a configure event, the client should
+	send an xdg_positioner.set_parent_size request.
+      </description>
+      <arg name="positioner" type="object" interface="xdg_positioner"/>
+      <arg name="token" type="uint" summary="reposition request token"/>
+    </request>
+
+    <event name="repositioned" since="3">
+      <description summary="signal the completion of a repositioned request">
+	The repositioned event is sent as part of a popup configuration
+	sequence, together with xdg_popup.configure and lastly
+	xdg_surface.configure to notify the completion of a reposition request.
+
+	The repositioned event is to notify about the completion of a
+	xdg_popup.reposition request. The token argument is the token passed
+	in the xdg_popup.reposition request.
+
+	Immediately after this event is emitted, xdg_popup.configure and
+	xdg_surface.configure will be sent with the updated size and position,
+	as well as a new configure serial.
+
+	The client should optionally update the content of the popup, but must
+	acknowledge the new popup configuration for the new position to take
+	effect. See xdg_surface.ack_configure for details.
+      </description>
+      <arg name="token" type="uint" summary="reposition request token"/>
+    </event>
+
+  </interface>
+</protocol>
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/include/GLFW/glfw3.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/include/GLFW/glfw3.h
new file mode 100644
index 000000000000..79b0628849e0
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/include/GLFW/glfw3.h
@@ -0,0 +1,6561 @@
+/*************************************************************************
+ * GLFW 3.5 - www.glfw.org
+ * A library for OpenGL, window and input
+ *------------------------------------------------------------------------
+ * Copyright (c) 2002-2006 Marcus Geelnard
+ * Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would
+ *    be appreciated but is not required.
+ *
+ * 2. Altered source versions must be plainly marked as such, and must not
+ *    be misrepresented as being the original software.
+ *
+ * 3. This notice may not be removed or altered from any source
+ *    distribution.
+ *
+ *************************************************************************/
+
+#ifndef _glfw3_h_
+#define _glfw3_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*************************************************************************
+ * Doxygen documentation
+ *************************************************************************/
+
+/*! @file glfw3.h
+ *  @brief The header of the GLFW 3 API.
+ *
+ *  This is the header file of the GLFW 3 API.  It defines all its types and
+ *  declares all its functions.
+ *
+ *  For more information about how to use this file, see @ref build_include.
+ */
+/*! @defgroup context Context reference
+ *  @brief Functions and types related to OpenGL and OpenGL ES contexts.
+ *
+ *  This is the reference documentation for OpenGL and OpenGL ES context related
+ *  functions.  For more task-oriented information, see the @ref context_guide.
+ */
+/*! @defgroup vulkan Vulkan support reference
+ *  @brief Functions and types related to Vulkan.
+ *
+ *  This is the reference documentation for Vulkan related functions and types.
+ *  For more task-oriented information, see the @ref vulkan_guide.
+ */
+/*! @defgroup init Initialization, version and error reference
+ *  @brief Functions and types related to initialization and error handling.
+ *
+ *  This is the reference documentation for initialization and termination of
+ *  the library, version management and error handling.  For more task-oriented
+ *  information, see the @ref intro_guide.
+ */
+/*! @defgroup input Input reference
+ *  @brief Functions and types related to input handling.
+ *
+ *  This is the reference documentation for input related functions and types.
+ *  For more task-oriented information, see the @ref input_guide.
+ */
+/*! @defgroup monitor Monitor reference
+ *  @brief Functions and types related to monitors.
+ *
+ *  This is the reference documentation for monitor related functions and types.
+ *  For more task-oriented information, see the @ref monitor_guide.
+ */
+/*! @defgroup window Window reference
+ *  @brief Functions and types related to windows.
+ *
+ *  This is the reference documentation for window related functions and types,
+ *  including creation, deletion and event polling.  For more task-oriented
+ *  information, see the @ref window_guide.
+ */
+
+
+/*************************************************************************
+ * Compiler- and platform-specific preprocessor work
+ *************************************************************************/
+
+/* If we are we on Windows, we want a single define for it.
+ */
+#if !defined(_WIN32) && (defined(__WIN32__) || defined(WIN32) || defined(__MINGW32__))
+ #define _WIN32
+#endif /* _WIN32 */
+
+/* Include because most Windows GLU headers need wchar_t and
+ * the macOS OpenGL header blocks the definition of ptrdiff_t by glext.h.
+ * Include it unconditionally to avoid surprising side-effects.
+ */
+#include <stddef.h>
+
+/* Include because it is needed by Vulkan and related functions.
+ * Include it unconditionally to avoid surprising side-effects.
+ */
+#include <stdint.h>
+
+#if defined(GLFW_INCLUDE_VULKAN)
+  #include <vulkan/vulkan.h>
+#endif /* Vulkan header */
+
+/* The Vulkan header may have indirectly included windows.h (because of
+ * VK_USE_PLATFORM_WIN32_KHR) so we offer our replacement symbols after it.
+ */
+
+/* It is customary to use APIENTRY for OpenGL function pointer declarations on
+ * all platforms.  Additionally, the Windows OpenGL header needs APIENTRY.
+ */
+#if !defined(APIENTRY)
+ #if defined(_WIN32)
+  #define APIENTRY __stdcall
+ #else
+  #define APIENTRY
+ #endif
+ #define GLFW_APIENTRY_DEFINED
+#endif /* APIENTRY */
+
+/* Some Windows OpenGL headers need this.
+ */
+#if !defined(WINGDIAPI) && defined(_WIN32)
+ #define WINGDIAPI __declspec(dllimport)
+ #define GLFW_WINGDIAPI_DEFINED
+#endif /* WINGDIAPI */
+
+/* Some Windows GLU headers need this.
+ */
+#if !defined(CALLBACK) && defined(_WIN32)
+ #define CALLBACK __stdcall
+ #define GLFW_CALLBACK_DEFINED
+#endif /* CALLBACK */
+
+/* Include the chosen OpenGL or OpenGL ES headers.
+ */
+#if defined(GLFW_INCLUDE_ES1)
+
+ #include <GLES/gl.h>
+ #if defined(GLFW_INCLUDE_GLEXT)
+  #include <GLES/glext.h>
+ #endif
+
+#elif defined(GLFW_INCLUDE_ES2)
+
+ #include <GLES2/gl2.h>
+ #if defined(GLFW_INCLUDE_GLEXT)
+  #include <GLES2/gl2ext.h>
+ #endif
+
+#elif defined(GLFW_INCLUDE_ES3)
+
+ #include <GLES3/gl3.h>
+ #if defined(GLFW_INCLUDE_GLEXT)
+  #include <GLES2/gl2ext.h>
+ #endif
+
+#elif defined(GLFW_INCLUDE_ES31)
+
+ #include <GLES3/gl31.h>
+ #if defined(GLFW_INCLUDE_GLEXT)
+  #include <GLES2/gl2ext.h>
+ #endif
+
+#elif defined(GLFW_INCLUDE_ES32)
+
+ #include <GLES3/gl32.h>
+ #if defined(GLFW_INCLUDE_GLEXT)
+  #include <GLES2/gl2ext.h>
+ #endif
+
+#elif defined(GLFW_INCLUDE_GLCOREARB)
+
+ #if defined(__APPLE__)
+
+  #include <OpenGL/gl3.h>
+  #if defined(GLFW_INCLUDE_GLEXT)
+   #include <OpenGL/gl3ext.h>
+  #endif /*GLFW_INCLUDE_GLEXT*/
+
+ #else /*__APPLE__*/
+
+  #include <GL/glcorearb.h>
+  #if defined(GLFW_INCLUDE_GLEXT)
+   #include <GL/glext.h>
+  #endif
+
+ #endif /*__APPLE__*/
+
+#elif defined(GLFW_INCLUDE_GLU)
+
+ #if defined(__APPLE__)
+
+  #if defined(GLFW_INCLUDE_GLU)
+   #include <OpenGL/glu.h>
+  #endif
+
+ #else /*__APPLE__*/
+
+  #if defined(GLFW_INCLUDE_GLU)
+   #include <GL/glu.h>
+  #endif
+
+ #endif /*__APPLE__*/
+
+#elif !defined(GLFW_INCLUDE_NONE) && \
+      !defined(__gl_h_) && \
+      !defined(__gles1_gl_h_) && \
+      !defined(__gles2_gl2_h_) && \
+      !defined(__gles2_gl3_h_) && \
+      !defined(__gles2_gl31_h_) && \
+      !defined(__gles2_gl32_h_) && \
+      !defined(__gl_glcorearb_h_) && \
+      !defined(__gl2_h_) /*legacy*/ && \
+      !defined(__gl3_h_) /*legacy*/ && \
+      !defined(__gl31_h_) /*legacy*/ && \
+      !defined(__gl32_h_) /*legacy*/ && \
+      !defined(__glcorearb_h_) /*legacy*/ && \
+      !defined(__GL_H__) /*non-standard*/ && \
+      !defined(__gltypes_h_) /*non-standard*/ && \
+      !defined(__glee_h_) /*non-standard*/
+
+ #if defined(__APPLE__)
+
+  #if !defined(GLFW_INCLUDE_GLEXT)
+   #define GL_GLEXT_LEGACY
+  #endif
+  #include <OpenGL/gl.h>
+
+ #else /*__APPLE__*/
+
+  #include <GL/gl.h>
+  #if defined(GLFW_INCLUDE_GLEXT)
+   #include <GL/glext.h>
+  #endif
+
+ #endif /*__APPLE__*/
+
+#endif /* OpenGL and OpenGL ES headers */
+
+#if defined(GLFW_DLL) && defined(_GLFW_BUILD_DLL)
+ /* GLFW_DLL must be defined by applications that are linking against the DLL
+  * version of the GLFW library.  _GLFW_BUILD_DLL is defined by the GLFW
+  * configuration header when compiling the DLL version of the library.
+  */
+ #error "You must not have both GLFW_DLL and _GLFW_BUILD_DLL defined"
+#endif
+
+/* GLFWAPI is used to declare public API functions for export
+ * from the DLL / shared library / dynamic library.
+ */
+#if defined(_WIN32) && defined(_GLFW_BUILD_DLL)
+ /* We are building GLFW as a Win32 DLL */
+ #define GLFWAPI __declspec(dllexport)
+#elif defined(_WIN32) && defined(GLFW_DLL)
+ /* We are calling a GLFW Win32 DLL */
+ #define GLFWAPI __declspec(dllimport)
+#elif defined(__GNUC__) && defined(_GLFW_BUILD_DLL)
+ /* We are building GLFW as a Unix shared library */
+ #define GLFWAPI __attribute__((visibility("default")))
+#else
+ #define GLFWAPI
+#endif
+
+
+/*************************************************************************
+ * GLFW API tokens
+ *************************************************************************/
+
+/*! @name GLFW version macros
+ *  @{ */
+/*! @brief The major version number of the GLFW header.
+ *
+ *  The major version number of the GLFW header.  This is incremented when the
+ *  API is changed in non-compatible ways.
+ *  @ingroup init
+ */
+#define GLFW_VERSION_MAJOR          3
+/*! @brief The minor version number of the GLFW header.
+ *
+ *  The minor version number of the GLFW header.  This is incremented when
+ *  features are added to the API but it remains backward-compatible.
+ *  @ingroup init
+ */
+#define GLFW_VERSION_MINOR          5
+/*! @brief The revision number of the GLFW header.
+ *
+ *  The revision number of the GLFW header.  This is incremented when a bug fix
+ *  release is made that does not contain any API changes.
+ *  @ingroup init
+ */
+#define GLFW_VERSION_REVISION       0
+/*! @} */
+
+/*! @brief One.
+ *
+ *  This is only semantic sugar for the number 1.  You can instead use `1` or
+ *  `true` or `_True` or `GL_TRUE` or `VK_TRUE` or anything else that is equal
+ *  to one.
+ *
+ *  @ingroup init
+ */
+#define GLFW_TRUE                   1
+/*! @brief Zero.
+ *
+ *  This is only semantic sugar for the number 0.  You can instead use `0` or
+ *  `false` or `_False` or `GL_FALSE` or `VK_FALSE` or anything else that is
+ *  equal to zero.
+ *
+ *  @ingroup init
+ */
+#define GLFW_FALSE                  0
+
+/*! @name Key and button actions
+ *  @{ */
+/*! @brief The key or mouse button was released.
+ *
+ *  The key or mouse button was released.
+ *
+ *  @ingroup input
+ */
+#define GLFW_RELEASE                0
+/*! @brief The key or mouse button was pressed.
+ *
+ *  The key or mouse button was pressed.
+ *
+ *  @ingroup input
+ */
+#define GLFW_PRESS                  1
+/*! @brief The key was held down until it repeated.
+ *
+ *  The key was held down until it repeated.
+ *
+ *  @ingroup input
+ */
+#define GLFW_REPEAT                 2
+/*! @} */
+
+/*! @defgroup hat_state Joystick hat states
+ *  @brief Joystick hat states.
+ *
+ *  See [joystick hat input](@ref joystick_hat) for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+#define GLFW_HAT_CENTERED           0
+#define GLFW_HAT_UP                 1
+#define GLFW_HAT_RIGHT              2
+#define GLFW_HAT_DOWN               4
+#define GLFW_HAT_LEFT               8
+#define GLFW_HAT_RIGHT_UP           (GLFW_HAT_RIGHT | GLFW_HAT_UP)
+#define GLFW_HAT_RIGHT_DOWN         (GLFW_HAT_RIGHT | GLFW_HAT_DOWN)
+#define GLFW_HAT_LEFT_UP            (GLFW_HAT_LEFT  | GLFW_HAT_UP)
+#define GLFW_HAT_LEFT_DOWN          (GLFW_HAT_LEFT  | GLFW_HAT_DOWN)
+
+/*! @ingroup input
+ */
+#define GLFW_KEY_UNKNOWN            -1
+
+/*! @} */
+
+/*! @defgroup keys Keyboard key tokens
+ *  @brief Keyboard key tokens.
+ *
+ *  See [key input](@ref input_key) for how these are used.
+ *
+ *  These key codes are inspired by the _USB HID Usage Tables v1.12_ (p. 53-60),
+ *  but re-arranged to map to 7-bit ASCII for printable keys (function keys are
+ *  put in the 256+ range).
+ *
+ *  The naming of the key codes follow these rules:
+ *   - The US keyboard layout is used
+ *   - Names of printable alphanumeric characters are used (e.g. "A", "R",
+ *     "3", etc.)
+ *   - For non-alphanumeric characters, Unicode:ish names are used (e.g.
+ *     "COMMA", "LEFT_SQUARE_BRACKET", etc.). Note that some names do not
+ *     correspond to the Unicode standard (usually for brevity)
+ *   - Keys that lack a clear US mapping are named "WORLD_x"
+ *   - For non-printable keys, custom names are used (e.g. "F4",
+ *     "BACKSPACE", etc.)
+ *
+ *  @ingroup input
+ *  @{
+ */
+
+/* Printable keys */
+#define GLFW_KEY_SPACE              32
+#define GLFW_KEY_APOSTROPHE         39  /* ' */
+#define GLFW_KEY_COMMA              44  /* , */
+#define GLFW_KEY_MINUS              45  /* - */
+#define GLFW_KEY_PERIOD             46  /* . */
+#define GLFW_KEY_SLASH              47  /* / */
+#define GLFW_KEY_0                  48
+#define GLFW_KEY_1                  49
+#define GLFW_KEY_2                  50
+#define GLFW_KEY_3                  51
+#define GLFW_KEY_4                  52
+#define GLFW_KEY_5                  53
+#define GLFW_KEY_6                  54
+#define GLFW_KEY_7                  55
+#define GLFW_KEY_8                  56
+#define GLFW_KEY_9                  57
+#define GLFW_KEY_SEMICOLON          59  /* ; */
+#define GLFW_KEY_EQUAL              61  /* = */
+#define GLFW_KEY_A                  65
+#define GLFW_KEY_B                  66
+#define GLFW_KEY_C                  67
+#define GLFW_KEY_D                  68
+#define GLFW_KEY_E                  69
+#define GLFW_KEY_F                  70
+#define GLFW_KEY_G                  71
+#define GLFW_KEY_H                  72
+#define GLFW_KEY_I                  73
+#define GLFW_KEY_J                  74
+#define GLFW_KEY_K                  75
+#define GLFW_KEY_L                  76
+#define GLFW_KEY_M                  77
+#define GLFW_KEY_N                  78
+#define GLFW_KEY_O                  79
+#define GLFW_KEY_P                  80
+#define GLFW_KEY_Q                  81
+#define GLFW_KEY_R                  82
+#define GLFW_KEY_S                  83
+#define GLFW_KEY_T                  84
+#define GLFW_KEY_U                  85
+#define GLFW_KEY_V                  86
+#define GLFW_KEY_W                  87
+#define GLFW_KEY_X                  88
+#define GLFW_KEY_Y                  89
+#define GLFW_KEY_Z                  90
+#define GLFW_KEY_LEFT_BRACKET       91  /* [ */
+#define GLFW_KEY_BACKSLASH          92  /* \ */
+#define GLFW_KEY_RIGHT_BRACKET      93  /* ] */
+#define GLFW_KEY_GRAVE_ACCENT       96  /* ` */
+#define GLFW_KEY_WORLD_1            161 /* non-US #1 */
+#define GLFW_KEY_WORLD_2            162 /* non-US #2 */
+
+/* Function keys */
+#define GLFW_KEY_ESCAPE             256
+#define GLFW_KEY_ENTER              257
+#define GLFW_KEY_TAB                258
+#define GLFW_KEY_BACKSPACE          259
+#define GLFW_KEY_INSERT             260
+#define GLFW_KEY_DELETE             261
+#define GLFW_KEY_RIGHT              262
+#define GLFW_KEY_LEFT               263
+#define GLFW_KEY_DOWN               264
+#define GLFW_KEY_UP                 265
+#define GLFW_KEY_PAGE_UP            266
+#define GLFW_KEY_PAGE_DOWN          267
+#define GLFW_KEY_HOME               268
+#define GLFW_KEY_END                269
+#define GLFW_KEY_CAPS_LOCK          280
+#define GLFW_KEY_SCROLL_LOCK        281
+#define GLFW_KEY_NUM_LOCK           282
+#define GLFW_KEY_PRINT_SCREEN       283
+#define GLFW_KEY_PAUSE              284
+#define GLFW_KEY_F1                 290
+#define GLFW_KEY_F2                 291
+#define GLFW_KEY_F3                 292
+#define GLFW_KEY_F4                 293
+#define GLFW_KEY_F5                 294
+#define GLFW_KEY_F6                 295
+#define GLFW_KEY_F7                 296
+#define GLFW_KEY_F8                 297
+#define GLFW_KEY_F9                 298
+#define GLFW_KEY_F10                299
+#define GLFW_KEY_F11                300
+#define GLFW_KEY_F12                301
+#define GLFW_KEY_F13                302
+#define GLFW_KEY_F14                303
+#define GLFW_KEY_F15                304
+#define GLFW_KEY_F16                305
+#define GLFW_KEY_F17                306
+#define GLFW_KEY_F18                307
+#define GLFW_KEY_F19                308
+#define GLFW_KEY_F20                309
+#define GLFW_KEY_F21                310
+#define GLFW_KEY_F22                311
+#define GLFW_KEY_F23                312
+#define GLFW_KEY_F24                313
+#define GLFW_KEY_F25                314
+#define GLFW_KEY_KP_0               320
+#define GLFW_KEY_KP_1               321
+#define GLFW_KEY_KP_2               322
+#define GLFW_KEY_KP_3               323
+#define GLFW_KEY_KP_4               324
+#define GLFW_KEY_KP_5               325
+#define GLFW_KEY_KP_6               326
+#define GLFW_KEY_KP_7               327
+#define GLFW_KEY_KP_8               328
+#define GLFW_KEY_KP_9               329
+#define GLFW_KEY_KP_DECIMAL         330
+#define GLFW_KEY_KP_DIVIDE          331
+#define GLFW_KEY_KP_MULTIPLY        332
+#define GLFW_KEY_KP_SUBTRACT        333
+#define GLFW_KEY_KP_ADD             334
+#define GLFW_KEY_KP_ENTER           335
+#define GLFW_KEY_KP_EQUAL           336
+#define GLFW_KEY_LEFT_SHIFT         340
+#define GLFW_KEY_LEFT_CONTROL       341
+#define GLFW_KEY_LEFT_ALT           342
+#define GLFW_KEY_LEFT_SUPER         343
+#define GLFW_KEY_RIGHT_SHIFT        344
+#define GLFW_KEY_RIGHT_CONTROL      345
+#define GLFW_KEY_RIGHT_ALT          346
+#define GLFW_KEY_RIGHT_SUPER        347
+#define GLFW_KEY_MENU               348
+
+#define GLFW_KEY_LAST               GLFW_KEY_MENU
+
+/*! @} */
+
+/*! @defgroup mods Modifier key flags
+ *  @brief Modifier key flags.
+ *
+ *  See [key input](@ref input_key) for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+
+/*! @brief If this bit is set one or more Shift keys were held down.
+ *
+ *  If this bit is set one or more Shift keys were held down.
+ */
+#define GLFW_MOD_SHIFT           0x0001
+/*! @brief If this bit is set one or more Control keys were held down.
+ *
+ *  If this bit is set one or more Control keys were held down.
+ */
+#define GLFW_MOD_CONTROL         0x0002
+/*! @brief If this bit is set one or more Alt keys were held down.
+ *
+ *  If this bit is set one or more Alt keys were held down.
+ */
+#define GLFW_MOD_ALT             0x0004
+/*! @brief If this bit is set one or more Super keys were held down.
+ *
+ *  If this bit is set one or more Super keys were held down.
+ */
+#define GLFW_MOD_SUPER           0x0008
+/*! @brief If this bit is set the Caps Lock key is enabled.
+ *
+ *  If this bit is set the Caps Lock key is enabled and the @ref
+ *  GLFW_LOCK_KEY_MODS input mode is set.
+ */
+#define GLFW_MOD_CAPS_LOCK       0x0010
+/*! @brief If this bit is set the Num Lock key is enabled.
+ *
+ *  If this bit is set the Num Lock key is enabled and the @ref
+ *  GLFW_LOCK_KEY_MODS input mode is set.
+ */
+#define GLFW_MOD_NUM_LOCK        0x0020
+
+/*! @} */
+
+/*! @defgroup buttons Mouse buttons
+ *  @brief Mouse button IDs.
+ *
+ *  See [mouse button input](@ref input_mouse_button) for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+#define GLFW_MOUSE_BUTTON_1         0
+#define GLFW_MOUSE_BUTTON_2         1
+#define GLFW_MOUSE_BUTTON_3         2
+#define GLFW_MOUSE_BUTTON_4         3
+#define GLFW_MOUSE_BUTTON_5         4
+#define GLFW_MOUSE_BUTTON_6         5
+#define GLFW_MOUSE_BUTTON_7         6
+#define GLFW_MOUSE_BUTTON_8         7
+#define GLFW_MOUSE_BUTTON_LAST      GLFW_MOUSE_BUTTON_8
+#define GLFW_MOUSE_BUTTON_LEFT      GLFW_MOUSE_BUTTON_1
+#define GLFW_MOUSE_BUTTON_RIGHT     GLFW_MOUSE_BUTTON_2
+#define GLFW_MOUSE_BUTTON_MIDDLE    GLFW_MOUSE_BUTTON_3
+/*! @} */
+
+/*! @defgroup joysticks Joysticks
+ *  @brief Joystick IDs.
+ *
+ *  See [joystick input](@ref joystick) for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+#define GLFW_JOYSTICK_1             0
+#define GLFW_JOYSTICK_2             1
+#define GLFW_JOYSTICK_3             2
+#define GLFW_JOYSTICK_4             3
+#define GLFW_JOYSTICK_5             4
+#define GLFW_JOYSTICK_6             5
+#define GLFW_JOYSTICK_7             6
+#define GLFW_JOYSTICK_8             7
+#define GLFW_JOYSTICK_9             8
+#define GLFW_JOYSTICK_10            9
+#define GLFW_JOYSTICK_11            10
+#define GLFW_JOYSTICK_12            11
+#define GLFW_JOYSTICK_13            12
+#define GLFW_JOYSTICK_14            13
+#define GLFW_JOYSTICK_15            14
+#define GLFW_JOYSTICK_16            15
+#define GLFW_JOYSTICK_LAST          GLFW_JOYSTICK_16
+/*! @} */
+
+/*! @defgroup gamepad_buttons Gamepad buttons
+ *  @brief Gamepad buttons.
+ *
+ *  See @ref gamepad for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+#define GLFW_GAMEPAD_BUTTON_A               0
+#define GLFW_GAMEPAD_BUTTON_B               1
+#define GLFW_GAMEPAD_BUTTON_X               2
+#define GLFW_GAMEPAD_BUTTON_Y               3
+#define GLFW_GAMEPAD_BUTTON_LEFT_BUMPER     4
+#define GLFW_GAMEPAD_BUTTON_RIGHT_BUMPER    5
+#define GLFW_GAMEPAD_BUTTON_BACK            6
+#define GLFW_GAMEPAD_BUTTON_START           7
+#define GLFW_GAMEPAD_BUTTON_GUIDE           8
+#define GLFW_GAMEPAD_BUTTON_LEFT_THUMB      9
+#define GLFW_GAMEPAD_BUTTON_RIGHT_THUMB     10
+#define GLFW_GAMEPAD_BUTTON_DPAD_UP         11
+#define GLFW_GAMEPAD_BUTTON_DPAD_RIGHT      12
+#define GLFW_GAMEPAD_BUTTON_DPAD_DOWN       13
+#define GLFW_GAMEPAD_BUTTON_DPAD_LEFT       14
+#define GLFW_GAMEPAD_BUTTON_LAST            GLFW_GAMEPAD_BUTTON_DPAD_LEFT
+
+#define GLFW_GAMEPAD_BUTTON_CROSS       GLFW_GAMEPAD_BUTTON_A
+#define GLFW_GAMEPAD_BUTTON_CIRCLE      GLFW_GAMEPAD_BUTTON_B
+#define GLFW_GAMEPAD_BUTTON_SQUARE      GLFW_GAMEPAD_BUTTON_X
+#define GLFW_GAMEPAD_BUTTON_TRIANGLE    GLFW_GAMEPAD_BUTTON_Y
+/*! @} */
+
+/*! @defgroup gamepad_axes Gamepad axes
+ *  @brief Gamepad axes.
+ *
+ *  See @ref gamepad for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+#define GLFW_GAMEPAD_AXIS_LEFT_X        0
+#define GLFW_GAMEPAD_AXIS_LEFT_Y        1
+#define GLFW_GAMEPAD_AXIS_RIGHT_X       2
+#define GLFW_GAMEPAD_AXIS_RIGHT_Y       3
+#define GLFW_GAMEPAD_AXIS_LEFT_TRIGGER  4
+#define GLFW_GAMEPAD_AXIS_RIGHT_TRIGGER 5
+#define GLFW_GAMEPAD_AXIS_LAST          GLFW_GAMEPAD_AXIS_RIGHT_TRIGGER
+/*! @} */
+
+/*! @defgroup errors Error codes
+ *  @brief Error codes.
+ *
+ *  See [error handling](@ref error_handling) for how these are used.
+ *
+ *  @ingroup init
+ *  @{ */
+/*! @brief No error has occurred.
+ *
+ *  No error has occurred.
+ *
+ *  @analysis Yay.
+ */
+#define GLFW_NO_ERROR               0
+/*! @brief GLFW has not been initialized.
+ *
+ *  This occurs if a GLFW function was called that must not be called unless the
+ *  library is [initialized](@ref intro_init).
+ *
+ *  @analysis Application programmer error.  Initialize GLFW before calling any
+ *  function that requires initialization.
+ */
+#define GLFW_NOT_INITIALIZED        0x00010001
+/*! @brief No context is current for this thread.
+ *
+ *  This occurs if a GLFW function was called that needs and operates on the
+ *  current OpenGL or OpenGL ES context but no context is current on the calling
+ *  thread.  One such function is @ref glfwSwapInterval.
+ *
+ *  @analysis Application programmer error.  Ensure a context is current before
+ *  calling functions that require a current context.
+ */
+#define GLFW_NO_CURRENT_CONTEXT     0x00010002
+/*! @brief One of the arguments to the function was an invalid enum value.
+ *
+ *  One of the arguments to the function was an invalid enum value, for example
+ *  requesting @ref GLFW_RED_BITS with @ref glfwGetWindowAttrib.
+ *
+ *  @analysis Application programmer error.  Fix the offending call.
+ */
+#define GLFW_INVALID_ENUM           0x00010003
+/*! @brief One of the arguments to the function was an invalid value.
+ *
+ *  One of the arguments to the function was an invalid value, for example
+ *  requesting a non-existent OpenGL or OpenGL ES version like 2.7.
+ *
+ *  Requesting a valid but unavailable OpenGL or OpenGL ES version will instead
+ *  result in a @ref GLFW_VERSION_UNAVAILABLE error.
+ *
+ *  @analysis Application programmer error.  Fix the offending call.
+ */
+#define GLFW_INVALID_VALUE          0x00010004
+/*! @brief A memory allocation failed.
+ *
+ *  A memory allocation failed.
+ *
+ *  @analysis A bug in GLFW or the underlying operating system.  Report the bug
+ *  to our [issue tracker](https://github.com/glfw/glfw/issues).
+ */
+#define GLFW_OUT_OF_MEMORY          0x00010005
+/*! @brief GLFW could not find support for the requested API on the system.
+ *
+ *  GLFW could not find support for the requested API on the system.
+ *
+ *  @analysis The installed graphics driver does not support the requested
+ *  API, or does not support it via the chosen context creation API.
+ *  Below are a few examples.
+ *
+ *  @par
+ *  Some pre-installed Windows graphics drivers do not support OpenGL.  AMD only
+ *  supports OpenGL ES via EGL, while Nvidia and Intel only support it via
+ *  a WGL or GLX extension.  macOS does not provide OpenGL ES at all.  The Mesa
+ *  EGL, OpenGL and OpenGL ES libraries do not interface with the Nvidia binary
+ *  driver.  Older graphics drivers do not support Vulkan.
+ */
+#define GLFW_API_UNAVAILABLE        0x00010006
+/*! @brief The requested OpenGL or OpenGL ES version is not available.
+ *
+ *  The requested OpenGL or OpenGL ES version (including any requested context
+ *  or framebuffer hints) is not available on this machine.
+ *
+ *  @analysis The machine does not support your requirements.  If your
+ *  application is sufficiently flexible, downgrade your requirements and try
+ *  again.  Otherwise, inform the user that their machine does not match your
+ *  requirements.
+ *
+ *  @par
+ *  Future invalid OpenGL and OpenGL ES versions, for example OpenGL 4.8 if 5.0
+ *  comes out before the 4.x series gets that far, also fail with this error and
+ *  not @ref GLFW_INVALID_VALUE, because GLFW cannot know what future versions
+ *  will exist.
+ */
+#define GLFW_VERSION_UNAVAILABLE    0x00010007
+/*! @brief A platform-specific error occurred that does not match any of the
+ *  more specific categories.
+ *
+ *  A platform-specific error occurred that does not match any of the more
+ *  specific categories.
+ *
+ *  @analysis A bug or configuration error in GLFW, the underlying operating
+ *  system or its drivers, or a lack of required resources.  Report the issue to
+ *  our [issue tracker](https://github.com/glfw/glfw/issues).
+ */
+#define GLFW_PLATFORM_ERROR         0x00010008
+/*! @brief The requested format is not supported or available.
+ *
+ *  If emitted during window creation, the requested pixel format is not
+ *  supported.
+ *
+ *  If emitted when querying the clipboard, the contents of the clipboard could
+ *  not be converted to the requested format.
+ *
+ *  @analysis If emitted during window creation, one or more
+ *  [hard constraints](@ref window_hints_hard) did not match any of the
+ *  available pixel formats.  If your application is sufficiently flexible,
+ *  downgrade your requirements and try again.  Otherwise, inform the user that
+ *  their machine does not match your requirements.
+ *
+ *  @par
+ *  If emitted when querying the clipboard, ignore the error or report it to
+ *  the user, as appropriate.
+ */
+#define GLFW_FORMAT_UNAVAILABLE     0x00010009
+/*! @brief The specified window does not have an OpenGL or OpenGL ES context.
+ *
+ *  A window that does not have an OpenGL or OpenGL ES context was passed to
+ *  a function that requires it to have one.
+ *
+ *  @analysis Application programmer error.  Fix the offending call.
+ */
+#define GLFW_NO_WINDOW_CONTEXT      0x0001000A
+/*! @brief The specified cursor shape is not available.
+ *
+ *  The specified standard cursor shape is not available, either because the
+ *  current platform cursor theme does not provide it or because it is not
+ *  available on the platform.
+ *
+ *  @analysis Platform or system settings limitation.  Pick another
+ *  [standard cursor shape](@ref shapes) or create a
+ *  [custom cursor](@ref cursor_custom).
+ */
+#define GLFW_CURSOR_UNAVAILABLE     0x0001000B
+/*! @brief The requested feature is not provided by the platform.
+ *
+ *  The requested feature is not provided by the platform, so GLFW is unable to
+ *  implement it.  The documentation for each function notes if it could emit
+ *  this error.
+ *
+ *  @analysis Platform or platform version limitation.  The error can be ignored
+ *  unless the feature is critical to the application.
+ *
+ *  @par
+ *  A function call that emits this error has no effect other than the error and
+ *  updating any existing out parameters.
+ */
+#define GLFW_FEATURE_UNAVAILABLE    0x0001000C
+/*! @brief The requested feature is not implemented for the platform.
+ *
+ *  The requested feature has not yet been implemented in GLFW for this platform.
+ *
+ *  @analysis An incomplete implementation of GLFW for this platform, hopefully
+ *  fixed in a future release.  The error can be ignored unless the feature is
+ *  critical to the application.
+ *
+ *  @par
+ *  A function call that emits this error has no effect other than the error and
+ *  updating any existing out parameters.
+ */
+#define GLFW_FEATURE_UNIMPLEMENTED  0x0001000D
+/*! @brief Platform unavailable or no matching platform was found.
+ *
+ *  If emitted during initialization, no matching platform was found.  If the @ref
+ *  GLFW_PLATFORM init hint was set to `GLFW_ANY_PLATFORM`, GLFW could not detect any of
+ *  the platforms supported by this library binary, except for the Null platform.  If the
+ *  init hint was set to a specific platform, it is either not supported by this library
+ *  binary or GLFW was not able to detect it.
+ *
+ *  If emitted by a native access function, GLFW was initialized for a different platform
+ *  than the function is for.
+ *
+ *  @analysis Failure to detect any platform usually only happens on non-macOS Unix
+ *  systems, either when no window system is running or the program was run from
+ *  a terminal that does not have the necessary environment variables.  Fall back to
+ *  a different platform if possible or notify the user that no usable platform was
+ *  detected.
+ *
+ *  Failure to detect a specific platform may have the same cause as above or be because
+ *  support for that platform was not compiled in.  Call @ref glfwPlatformSupported to
+ *  check whether a specific platform is supported by a library binary.
+ */
+#define GLFW_PLATFORM_UNAVAILABLE   0x0001000E
+/*! @} */
+
+/*! @addtogroup window
+ *  @{ */
+/*! @brief Input focus window hint and attribute
+ *
+ *  Input focus [window hint](@ref GLFW_FOCUSED_hint) or
+ *  [window attribute](@ref GLFW_FOCUSED_attrib).
+ */
+#define GLFW_FOCUSED                0x00020001
+/*! @brief Window iconification window attribute
+ *
+ *  Window iconification [window attribute](@ref GLFW_ICONIFIED_attrib).
+ */
+#define GLFW_ICONIFIED              0x00020002
+/*! @brief Window resize-ability window hint and attribute
+ *
+ *  Window resize-ability [window hint](@ref GLFW_RESIZABLE_hint) and
+ *  [window attribute](@ref GLFW_RESIZABLE_attrib).
+ */
+#define GLFW_RESIZABLE              0x00020003
+/*! @brief Window visibility window hint and attribute
+ *
+ *  Window visibility [window hint](@ref GLFW_VISIBLE_hint) and
+ *  [window attribute](@ref GLFW_VISIBLE_attrib).
+ */
+#define GLFW_VISIBLE                0x00020004
+/*! @brief Window decoration window hint and attribute
+ *
+ *  Window decoration [window hint](@ref GLFW_DECORATED_hint) and
+ *  [window attribute](@ref GLFW_DECORATED_attrib).
+ */
+#define GLFW_DECORATED              0x00020005
+/*! @brief Window auto-iconification window hint and attribute
+ *
+ *  Window auto-iconification [window hint](@ref GLFW_AUTO_ICONIFY_hint) and
+ *  [window attribute](@ref GLFW_AUTO_ICONIFY_attrib).
+ */
+#define GLFW_AUTO_ICONIFY           0x00020006
+/*! @brief Window decoration window hint and attribute
+ *
+ *  Window decoration [window hint](@ref GLFW_FLOATING_hint) and
+ *  [window attribute](@ref GLFW_FLOATING_attrib).
+ */
+#define GLFW_FLOATING               0x00020007
+/*! @brief Window maximization window hint and attribute
+ *
+ *  Window maximization [window hint](@ref GLFW_MAXIMIZED_hint) and
+ *  [window attribute](@ref GLFW_MAXIMIZED_attrib).
+ */
+#define GLFW_MAXIMIZED              0x00020008
+/*! @brief Cursor centering window hint
+ *
+ *  Cursor centering [window hint](@ref GLFW_CENTER_CURSOR_hint).
+ */
+#define GLFW_CENTER_CURSOR          0x00020009
+/*! @brief Window framebuffer transparency hint and attribute
+ *
+ *  Window framebuffer transparency
+ *  [window hint](@ref GLFW_TRANSPARENT_FRAMEBUFFER_hint) and
+ *  [window attribute](@ref GLFW_TRANSPARENT_FRAMEBUFFER_attrib).
+ */
+#define GLFW_TRANSPARENT_FRAMEBUFFER 0x0002000A
+/*! @brief Mouse cursor hover window attribute.
+ *
+ *  Mouse cursor hover [window attribute](@ref GLFW_HOVERED_attrib).
+ */
+#define GLFW_HOVERED                0x0002000B
+/*! @brief Input focus on calling show window hint and attribute
+ *
+ *  Input focus [window hint](@ref GLFW_FOCUS_ON_SHOW_hint) or
+ *  [window attribute](@ref GLFW_FOCUS_ON_SHOW_attrib).
+ */
+#define GLFW_FOCUS_ON_SHOW          0x0002000C
+
+/*! @brief Mouse input transparency window hint and attribute
+ *
+ *  Mouse input transparency [window hint](@ref GLFW_MOUSE_PASSTHROUGH_hint) or
+ *  [window attribute](@ref GLFW_MOUSE_PASSTHROUGH_attrib).
+ */
+#define GLFW_MOUSE_PASSTHROUGH      0x0002000D
+
+/*! @brief Initial position x-coordinate window hint.
+ *
+ *  Initial position x-coordinate [window hint](@ref GLFW_POSITION_X).
+ */
+#define GLFW_POSITION_X             0x0002000E
+
+/*! @brief Initial position y-coordinate window hint.
+ *
+ *  Initial position y-coordinate [window hint](@ref GLFW_POSITION_Y).
+ */
+#define GLFW_POSITION_Y             0x0002000F
+
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_RED_BITS).
+ */
+#define GLFW_RED_BITS               0x00021001
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_GREEN_BITS).
+ */
+#define GLFW_GREEN_BITS             0x00021002
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_BLUE_BITS).
+ */
+#define GLFW_BLUE_BITS              0x00021003
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_ALPHA_BITS).
+ */
+#define GLFW_ALPHA_BITS             0x00021004
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_DEPTH_BITS).
+ */
+#define GLFW_DEPTH_BITS             0x00021005
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_STENCIL_BITS).
+ */
+#define GLFW_STENCIL_BITS           0x00021006
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_ACCUM_RED_BITS).
+ */
+#define GLFW_ACCUM_RED_BITS         0x00021007
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_ACCUM_GREEN_BITS).
+ */
+#define GLFW_ACCUM_GREEN_BITS       0x00021008
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_ACCUM_BLUE_BITS).
+ */
+#define GLFW_ACCUM_BLUE_BITS        0x00021009
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_ACCUM_ALPHA_BITS).
+ */
+#define GLFW_ACCUM_ALPHA_BITS       0x0002100A
+/*! @brief Framebuffer auxiliary buffer hint.
+ *
+ *  Framebuffer auxiliary buffer [hint](@ref GLFW_AUX_BUFFERS).
+ */
+#define GLFW_AUX_BUFFERS            0x0002100B
+/*! @brief OpenGL stereoscopic rendering hint.
+ *
+ *  OpenGL stereoscopic rendering [hint](@ref GLFW_STEREO).
+ */
+#define GLFW_STEREO                 0x0002100C
+/*! @brief Framebuffer MSAA samples hint.
+ *
+ *  Framebuffer MSAA samples [hint](@ref GLFW_SAMPLES).
+ */
+#define GLFW_SAMPLES                0x0002100D
+/*! @brief Framebuffer sRGB hint.
+ *
+ *  Framebuffer sRGB [hint](@ref GLFW_SRGB_CAPABLE).
+ */
+#define GLFW_SRGB_CAPABLE           0x0002100E
+/*! @brief Monitor refresh rate hint.
+ *
+ *  Monitor refresh rate [hint](@ref GLFW_REFRESH_RATE).
+ */
+#define GLFW_REFRESH_RATE           0x0002100F
+/*! @brief Framebuffer double buffering hint and attribute.
+ *
+ *  Framebuffer double buffering [hint](@ref GLFW_DOUBLEBUFFER_hint) and
+ *  [attribute](@ref GLFW_DOUBLEBUFFER_attrib).
+ */
+#define GLFW_DOUBLEBUFFER           0x00021010
+
+/*! @brief Context client API hint and attribute.
+ *
+ *  Context client API [hint](@ref GLFW_CLIENT_API_hint) and
+ *  [attribute](@ref GLFW_CLIENT_API_attrib).
+ */
+#define GLFW_CLIENT_API             0x00022001
+/*! @brief Context client API major version hint and attribute.
+ *
+ *  Context client API major version [hint](@ref GLFW_CONTEXT_VERSION_MAJOR_hint)
+ *  and [attribute](@ref GLFW_CONTEXT_VERSION_MAJOR_attrib).
+ */
+#define GLFW_CONTEXT_VERSION_MAJOR  0x00022002
+/*! @brief Context client API minor version hint and attribute.
+ *
+ *  Context client API minor version [hint](@ref GLFW_CONTEXT_VERSION_MINOR_hint)
+ *  and [attribute](@ref GLFW_CONTEXT_VERSION_MINOR_attrib).
+ */
+#define GLFW_CONTEXT_VERSION_MINOR  0x00022003
+/*! @brief Context client API revision number attribute.
+ *
+ *  Context client API revision number
+ *  [attribute](@ref GLFW_CONTEXT_REVISION_attrib).
+ */
+#define GLFW_CONTEXT_REVISION       0x00022004
+/*! @brief Context robustness hint and attribute.
+ *
+ *  Context client API revision number [hint](@ref GLFW_CONTEXT_ROBUSTNESS_hint)
+ *  and [attribute](@ref GLFW_CONTEXT_ROBUSTNESS_attrib).
+ */
+#define GLFW_CONTEXT_ROBUSTNESS     0x00022005
+/*! @brief OpenGL forward-compatibility hint and attribute.
+ *
+ *  OpenGL forward-compatibility [hint](@ref GLFW_OPENGL_FORWARD_COMPAT_hint)
+ *  and [attribute](@ref GLFW_OPENGL_FORWARD_COMPAT_attrib).
+ */
+#define GLFW_OPENGL_FORWARD_COMPAT  0x00022006
+/*! @brief Debug mode context hint and attribute.
+ *
+ *  Debug mode context [hint](@ref GLFW_CONTEXT_DEBUG_hint) and
+ *  [attribute](@ref GLFW_CONTEXT_DEBUG_attrib).
+ */
+#define GLFW_CONTEXT_DEBUG          0x00022007
+/*! @brief Legacy name for compatibility.
+ *
+ *  This is an alias for compatibility with earlier versions.
+ */
+#define GLFW_OPENGL_DEBUG_CONTEXT   GLFW_CONTEXT_DEBUG
+/*! @brief OpenGL profile hint and attribute.
+ *
+ *  OpenGL profile [hint](@ref GLFW_OPENGL_PROFILE_hint) and
+ *  [attribute](@ref GLFW_OPENGL_PROFILE_attrib).
+ */
+#define GLFW_OPENGL_PROFILE         0x00022008
+/*! @brief Context flush-on-release hint and attribute.
+ *
+ *  Context flush-on-release [hint](@ref GLFW_CONTEXT_RELEASE_BEHAVIOR_hint) and
+ *  [attribute](@ref GLFW_CONTEXT_RELEASE_BEHAVIOR_attrib).
+ */
+#define GLFW_CONTEXT_RELEASE_BEHAVIOR 0x00022009
+/*! @brief Context error suppression hint and attribute.
+ *
+ *  Context error suppression [hint](@ref GLFW_CONTEXT_NO_ERROR_hint) and
+ *  [attribute](@ref GLFW_CONTEXT_NO_ERROR_attrib).
+ */
+#define GLFW_CONTEXT_NO_ERROR       0x0002200A
+/*! @brief Context creation API hint and attribute.
+ *
+ *  Context creation API [hint](@ref GLFW_CONTEXT_CREATION_API_hint) and
+ *  [attribute](@ref GLFW_CONTEXT_CREATION_API_attrib).
+ */
+#define GLFW_CONTEXT_CREATION_API   0x0002200B
+/*! @brief Window content area scaling window
+ *  [window hint](@ref GLFW_SCALE_TO_MONITOR).
+ */
+#define GLFW_SCALE_TO_MONITOR       0x0002200C
+/*! @brief Window framebuffer scaling
+ *  [window hint](@ref GLFW_SCALE_FRAMEBUFFER_hint).
+ */
+#define GLFW_SCALE_FRAMEBUFFER      0x0002200D
+/*! @brief Legacy name for compatibility.
+ *
+ *  This is an alias for the
+ *  [GLFW_SCALE_FRAMEBUFFER](@ref GLFW_SCALE_FRAMEBUFFER_hint) window hint for
+ *  compatibility with earlier versions.
+ */
+#define GLFW_COCOA_RETINA_FRAMEBUFFER 0x00023001
+/*! @brief macOS specific
+ *  [window hint](@ref GLFW_COCOA_FRAME_NAME_hint).
+ */
+#define GLFW_COCOA_FRAME_NAME         0x00023002
+/*! @brief macOS specific
+ *  [window hint](@ref GLFW_COCOA_GRAPHICS_SWITCHING_hint).
+ */
+#define GLFW_COCOA_GRAPHICS_SWITCHING 0x00023003
+/*! @brief X11 specific
+ *  [window hint](@ref GLFW_X11_CLASS_NAME_hint).
+ */
+#define GLFW_X11_CLASS_NAME         0x00024001
+/*! @brief X11 specific
+ *  [window hint](@ref GLFW_X11_CLASS_NAME_hint).
+ */
+#define GLFW_X11_INSTANCE_NAME      0x00024002
+#define GLFW_WIN32_KEYBOARD_MENU    0x00025001
+/*! @brief Win32 specific [window hint](@ref GLFW_WIN32_SHOWDEFAULT_hint).
+ */
+#define GLFW_WIN32_SHOWDEFAULT      0x00025002
+/*! @brief Wayland specific
+ *  [window hint](@ref GLFW_WAYLAND_APP_ID_hint).
+ *  
+ *  Allows specification of the Wayland app_id.
+ */
+#define GLFW_WAYLAND_APP_ID         0x00026001
+/*! @} */
+
+#define GLFW_NO_API                          0
+#define GLFW_OPENGL_API             0x00030001
+#define GLFW_OPENGL_ES_API          0x00030002
+
+#define GLFW_NO_ROBUSTNESS                   0
+#define GLFW_NO_RESET_NOTIFICATION  0x00031001
+#define GLFW_LOSE_CONTEXT_ON_RESET  0x00031002
+
+#define GLFW_OPENGL_ANY_PROFILE              0
+#define GLFW_OPENGL_CORE_PROFILE    0x00032001
+#define GLFW_OPENGL_COMPAT_PROFILE  0x00032002
+
+#define GLFW_CURSOR                  0x00033001
+#define GLFW_STICKY_KEYS             0x00033002
+#define GLFW_STICKY_MOUSE_BUTTONS    0x00033003
+#define GLFW_LOCK_KEY_MODS           0x00033004
+#define GLFW_RAW_MOUSE_MOTION        0x00033005
+#define GLFW_UNLIMITED_MOUSE_BUTTONS 0x00033006
+
+#define GLFW_CURSOR_NORMAL          0x00034001
+#define GLFW_CURSOR_HIDDEN          0x00034002
+#define GLFW_CURSOR_DISABLED        0x00034003
+#define GLFW_CURSOR_CAPTURED        0x00034004
+
+#define GLFW_ANY_RELEASE_BEHAVIOR            0
+#define GLFW_RELEASE_BEHAVIOR_FLUSH 0x00035001
+#define GLFW_RELEASE_BEHAVIOR_NONE  0x00035002
+
+#define GLFW_NATIVE_CONTEXT_API     0x00036001
+#define GLFW_EGL_CONTEXT_API        0x00036002
+#define GLFW_OSMESA_CONTEXT_API     0x00036003
+
+#define GLFW_ANGLE_PLATFORM_TYPE_NONE    0x00037001
+#define GLFW_ANGLE_PLATFORM_TYPE_OPENGL  0x00037002
+#define GLFW_ANGLE_PLATFORM_TYPE_OPENGLES 0x00037003
+#define GLFW_ANGLE_PLATFORM_TYPE_D3D9    0x00037004
+#define GLFW_ANGLE_PLATFORM_TYPE_D3D11   0x00037005
+#define GLFW_ANGLE_PLATFORM_TYPE_VULKAN  0x00037007
+#define GLFW_ANGLE_PLATFORM_TYPE_METAL   0x00037008
+
+#define GLFW_WAYLAND_PREFER_LIBDECOR    0x00038001
+#define GLFW_WAYLAND_DISABLE_LIBDECOR   0x00038002
+
+#define GLFW_ANY_POSITION           0x80000000
+
+/*! @defgroup shapes Standard cursor shapes
+ *  @brief Standard system cursor shapes.
+ *
+ *  These are the [standard cursor shapes](@ref cursor_standard) that can be
+ *  requested from the platform (window system).
+ *
+ *  @ingroup input
+ *  @{ */
+
+/*! @brief The regular arrow cursor shape.
+ *
+ *  The regular arrow cursor shape.
+ */
+#define GLFW_ARROW_CURSOR           0x00036001
+/*! @brief The text input I-beam cursor shape.
+ *
+ *  The text input I-beam cursor shape.
+ */
+#define GLFW_IBEAM_CURSOR           0x00036002
+/*! @brief The crosshair cursor shape.
+ *
+ *  The crosshair cursor shape.
+ */
+#define GLFW_CROSSHAIR_CURSOR       0x00036003
+/*! @brief The pointing hand cursor shape.
+ *
+ *  The pointing hand cursor shape.
+ */
+#define GLFW_POINTING_HAND_CURSOR   0x00036004
+/*! @brief The horizontal resize/move arrow shape.
+ *
+ *  The horizontal resize/move arrow shape.  This is usually a horizontal
+ *  double-headed arrow.
+ */
+#define GLFW_RESIZE_EW_CURSOR       0x00036005
+/*! @brief The vertical resize/move arrow shape.
+ *
+ *  The vertical resize/move shape.  This is usually a vertical double-headed
+ *  arrow.
+ */
+#define GLFW_RESIZE_NS_CURSOR       0x00036006
+/*! @brief The top-left to bottom-right diagonal resize/move arrow shape.
+ *
+ *  The top-left to bottom-right diagonal resize/move shape.  This is usually
+ *  a diagonal double-headed arrow.
+ *
+ *  @note @macos This shape is provided by a private system API and may fail
+ *  with @ref GLFW_CURSOR_UNAVAILABLE in the future.
+ *
+ *  @note @wayland This shape is provided by a newer standard not supported by
+ *  all cursor themes.
+ *
+ *  @note @x11 This shape is provided by a newer standard not supported by all
+ *  cursor themes.
+ */
+#define GLFW_RESIZE_NWSE_CURSOR     0x00036007
+/*! @brief The top-right to bottom-left diagonal resize/move arrow shape.
+ *
+ *  The top-right to bottom-left diagonal resize/move shape.  This is usually
+ *  a diagonal double-headed arrow.
+ *
+ *  @note @macos This shape is provided by a private system API and may fail
+ *  with @ref GLFW_CURSOR_UNAVAILABLE in the future.
+ *
+ *  @note @wayland This shape is provided by a newer standard not supported by
+ *  all cursor themes.
+ *
+ *  @note @x11 This shape is provided by a newer standard not supported by all
+ *  cursor themes.
+ */
+#define GLFW_RESIZE_NESW_CURSOR     0x00036008
+/*! @brief The omni-directional resize/move cursor shape.
+ *
+ *  The omni-directional resize cursor/move shape.  This is usually either
+ *  a combined horizontal and vertical double-headed arrow or a grabbing hand.
+ */
+#define GLFW_RESIZE_ALL_CURSOR      0x00036009
+/*! @brief The operation-not-allowed shape.
+ *
+ *  The operation-not-allowed shape.  This is usually a circle with a diagonal
+ *  line through it.
+ *
+ *  @note @wayland This shape is provided by a newer standard not supported by
+ *  all cursor themes.
+ *
+ *  @note @x11 This shape is provided by a newer standard not supported by all
+ *  cursor themes.
+ */
+#define GLFW_NOT_ALLOWED_CURSOR     0x0003600A
+/*! @brief Legacy name for compatibility.
+ *
+ *  This is an alias for compatibility with earlier versions.
+ */
+#define GLFW_HRESIZE_CURSOR         GLFW_RESIZE_EW_CURSOR
+/*! @brief Legacy name for compatibility.
+ *
+ *  This is an alias for compatibility with earlier versions.
+ */
+#define GLFW_VRESIZE_CURSOR         GLFW_RESIZE_NS_CURSOR
+/*! @brief Legacy name for compatibility.
+ *
+ *  This is an alias for compatibility with earlier versions.
+ */
+#define GLFW_HAND_CURSOR            GLFW_POINTING_HAND_CURSOR
+/*! @} */
+
+#define GLFW_CONNECTED              0x00040001
+#define GLFW_DISCONNECTED           0x00040002
+
+/*! @addtogroup init
+ *  @{ */
+/*! @brief Joystick hat buttons init hint.
+ *
+ *  Joystick hat buttons [init hint](@ref GLFW_JOYSTICK_HAT_BUTTONS).
+ */
+#define GLFW_JOYSTICK_HAT_BUTTONS   0x00050001
+/*! @brief ANGLE rendering backend init hint.
+ *
+ *  ANGLE rendering backend [init hint](@ref GLFW_ANGLE_PLATFORM_TYPE_hint).
+ */
+#define GLFW_ANGLE_PLATFORM_TYPE    0x00050002
+/*! @brief Platform selection init hint.
+ *
+ *  Platform selection [init hint](@ref GLFW_PLATFORM).
+ */
+#define GLFW_PLATFORM               0x00050003
+/*! @brief macOS specific init hint.
+ *
+ *  macOS specific [init hint](@ref GLFW_COCOA_CHDIR_RESOURCES_hint).
+ */
+#define GLFW_COCOA_CHDIR_RESOURCES  0x00051001
+/*! @brief macOS specific init hint.
+ *
+ *  macOS specific [init hint](@ref GLFW_COCOA_MENUBAR_hint).
+ */
+#define GLFW_COCOA_MENUBAR          0x00051002
+/*! @brief X11 specific init hint.
+ *
+ *  X11 specific [init hint](@ref GLFW_X11_XCB_VULKAN_SURFACE_hint).
+ */
+#define GLFW_X11_XCB_VULKAN_SURFACE 0x00052001
+/*! @brief Wayland specific init hint.
+ *
+ *  Wayland specific [init hint](@ref GLFW_WAYLAND_LIBDECOR_hint).
+ */
+#define GLFW_WAYLAND_LIBDECOR       0x00053001
+/*! @} */
+
+/*! @addtogroup init
+ *  @{ */
+/*! @brief Hint value that enables automatic platform selection.
+ *
+ *  Hint value for @ref GLFW_PLATFORM that enables automatic platform selection.
+ */
+#define GLFW_ANY_PLATFORM           0x00060000
+#define GLFW_PLATFORM_WIN32         0x00060001
+#define GLFW_PLATFORM_COCOA         0x00060002
+#define GLFW_PLATFORM_WAYLAND       0x00060003
+#define GLFW_PLATFORM_X11           0x00060004
+#define GLFW_PLATFORM_NULL          0x00060005
+/*! @} */
+
+#define GLFW_DONT_CARE              -1
+
+
+/*************************************************************************
+ * GLFW API types
+ *************************************************************************/
+
+/*! @brief Client API function pointer type.
+ *
+ *  Generic function pointer used for returning client API function pointers
+ *  without forcing a cast from a regular pointer.
+ *
+ *  @sa @ref context_glext
+ *  @sa @ref glfwGetProcAddress
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup context
+ */
+typedef void (*GLFWglproc)(void);
+
+/*! @brief Vulkan API function pointer type.
+ *
+ *  Generic function pointer used for returning Vulkan API function pointers
+ *  without forcing a cast from a regular pointer.
+ *
+ *  @sa @ref vulkan_proc
+ *  @sa @ref glfwGetInstanceProcAddress
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup vulkan
+ */
+typedef void (*GLFWvkproc)(void);
+
+/*! @brief Opaque monitor object.
+ *
+ *  Opaque monitor object.
+ *
+ *  @see @ref monitor_object
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+typedef struct GLFWmonitor GLFWmonitor;
+
+/*! @brief Opaque window object.
+ *
+ *  Opaque window object.
+ *
+ *  @see @ref window_object
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+typedef struct GLFWwindow GLFWwindow;
+
+/*! @brief Opaque cursor object.
+ *
+ *  Opaque cursor object.
+ *
+ *  @see @ref cursor_object
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+typedef struct GLFWcursor GLFWcursor;
+
+/*! @brief The function pointer type for memory allocation callbacks.
+ *
+ *  This is the function pointer type for memory allocation callbacks.  A memory
+ *  allocation callback function has the following signature:
+ *  @code
+ *  void* function_name(size_t size, void* user)
+ *  @endcode
+ *
+ *  This function must return either a memory block at least `size` bytes long,
+ *  or `NULL` if allocation failed.  Note that not all parts of GLFW handle allocation
+ *  failures gracefully yet.
+ *
+ *  This function must support being called during @ref glfwInit but before the library is
+ *  flagged as initialized, as well as during @ref glfwTerminate after the library is no
+ *  longer flagged as initialized.
+ *
+ *  Any memory allocated via this function will be deallocated via the same allocator
+ *  during library termination or earlier.
+ *
+ *  Any memory allocated via this function must be suitably aligned for any object type.
+ *  If you are using C99 or earlier, this alignment is platform-dependent but will be the
+ *  same as what `malloc` provides.  If you are using C11 or later, this is the value of
+ *  `alignof(max_align_t)`.
+ *
+ *  The size will always be greater than zero.  Allocations of size zero are filtered out
+ *  before reaching the custom allocator.
+ *
+ *  If this function returns `NULL`, GLFW will emit @ref GLFW_OUT_OF_MEMORY.
+ *
+ *  This function must not call any GLFW function.
+ *
+ *  @param[in] size The minimum size, in bytes, of the memory block.
+ *  @param[in] user The user-defined pointer from the allocator.
+ *  @return The address of the newly allocated memory block, or `NULL` if an
+ *  error occurred.
+ *
+ *  @pointer_lifetime The returned memory block must be valid at least until it
+ *  is deallocated.
+ *
+ *  @reentrancy This function should not call any GLFW function.
+ *
+ *  @thread_safety This function must support being called from any thread that calls GLFW
+ *  functions.
+ *
+ *  @sa @ref init_allocator
+ *  @sa @ref GLFWallocator
+ *
+ *  @since Added in version 3.4.
+ *
+ *  @ingroup init
+ */
+typedef void* (* GLFWallocatefun)(size_t size, void* user);
+
+/*! @brief The function pointer type for memory reallocation callbacks.
+ *
+ *  This is the function pointer type for memory reallocation callbacks.
+ *  A memory reallocation callback function has the following signature:
+ *  @code
+ *  void* function_name(void* block, size_t size, void* user)
+ *  @endcode
+ *
+ *  This function must return a memory block at least `size` bytes long, or
+ *  `NULL` if allocation failed.  Note that not all parts of GLFW handle allocation
+ *  failures gracefully yet.
+ *
+ *  This function must support being called during @ref glfwInit but before the library is
+ *  flagged as initialized, as well as during @ref glfwTerminate after the library is no
+ *  longer flagged as initialized.
+ *
+ *  Any memory allocated via this function will be deallocated via the same allocator
+ *  during library termination or earlier.
+ *
+ *  Any memory allocated via this function must be suitably aligned for any object type.
+ *  If you are using C99 or earlier, this alignment is platform-dependent but will be the
+ *  same as what `realloc` provides.  If you are using C11 or later, this is the value of
+ *  `alignof(max_align_t)`.
+ *
+ *  The block address will never be `NULL` and the size will always be greater than zero.
+ *  Reallocations of a block to size zero are converted into deallocations before reaching
+ *  the custom allocator.  Reallocations of `NULL` to a non-zero size are converted into
+ *  regular allocations before reaching the custom allocator.
+ *
+ *  If this function returns `NULL`, GLFW will emit @ref GLFW_OUT_OF_MEMORY.
+ *
+ *  This function must not call any GLFW function.
+ *
+ *  @param[in] block The address of the memory block to reallocate.
+ *  @param[in] size The new minimum size, in bytes, of the memory block.
+ *  @param[in] user The user-defined pointer from the allocator.
+ *  @return The address of the newly allocated or resized memory block, or
+ *  `NULL` if an error occurred.
+ *
+ *  @pointer_lifetime The returned memory block must be valid at least until it
+ *  is deallocated.
+ *
+ *  @reentrancy This function should not call any GLFW function.
+ *
+ *  @thread_safety This function must support being called from any thread that calls GLFW
+ *  functions.
+ *
+ *  @sa @ref init_allocator
+ *  @sa @ref GLFWallocator
+ *
+ *  @since Added in version 3.4.
+ *
+ *  @ingroup init
+ */
+typedef void* (* GLFWreallocatefun)(void* block, size_t size, void* user);
+
+/*! @brief The function pointer type for memory deallocation callbacks.
+ *
+ *  This is the function pointer type for memory deallocation callbacks.
+ *  A memory deallocation callback function has the following signature:
+ *  @code
+ *  void function_name(void* block, void* user)
+ *  @endcode
+ *
+ *  This function may deallocate the specified memory block.  This memory block
+ *  will have been allocated with the same allocator.
+ *
+ *  This function must support being called during @ref glfwInit but before the library is
+ *  flagged as initialized, as well as during @ref glfwTerminate after the library is no
+ *  longer flagged as initialized.
+ *
+ *  The block address will never be `NULL`.  Deallocations of `NULL` are filtered out
+ *  before reaching the custom allocator.
+ *
+ *  If this function returns `NULL`, GLFW will emit @ref GLFW_OUT_OF_MEMORY.
+ *
+ *  This function must not call any GLFW function.
+ *
+ *  @param[in] block The address of the memory block to deallocate.
+ *  @param[in] user The user-defined pointer from the allocator.
+ *
+ *  @pointer_lifetime The specified memory block will not be accessed by GLFW
+ *  after this function is called.
+ *
+ *  @reentrancy This function should not call any GLFW function.
+ *
+ *  @thread_safety This function must support being called from any thread that calls GLFW
+ *  functions.
+ *
+ *  @sa @ref init_allocator
+ *  @sa @ref GLFWallocator
+ *
+ *  @since Added in version 3.4.
+ *
+ *  @ingroup init
+ */
+typedef void (* GLFWdeallocatefun)(void* block, void* user);
+
+/*! @brief The function pointer type for error callbacks.
+ *
+ *  This is the function pointer type for error callbacks.  An error callback
+ *  function has the following signature:
+ *  @code
+ *  void callback_name(int error_code, const char* description)
+ *  @endcode
+ *
+ *  @param[in] error_code An [error code](@ref errors).  Future releases may add
+ *  more error codes.
+ *  @param[in] description A UTF-8 encoded string describing the error.
+ *
+ *  @pointer_lifetime The error description string is valid until the callback
+ *  function returns.
+ *
+ *  @sa @ref error_handling
+ *  @sa @ref glfwSetErrorCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup init
+ */
+typedef void (* GLFWerrorfun)(int error_code, const char* description);
+
+/*! @brief The function pointer type for window position callbacks.
+ *
+ *  This is the function pointer type for window position callbacks.  A window
+ *  position callback function has the following signature:
+ *  @code
+ *  void callback_name(GLFWwindow* window, int xpos, int ypos)
+ *  @endcode
+ *
+ *  @param[in] window The window that was moved.
+ *  @param[in] xpos The new x-coordinate, in screen coordinates, of the
+ *  upper-left corner of the content area of the window.
+ *  @param[in] ypos The new y-coordinate, in screen coordinates, of the
+ *  upper-left corner of the content area of the window.
+ *
+ *  @sa @ref window_pos
+ *  @sa @ref glfwSetWindowPosCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowposfun)(GLFWwindow* window, int xpos, int ypos);
+
+/*! @brief The function pointer type for window size callbacks.
+ *
+ *  This is the function pointer type for window size callbacks.  A window size
+ *  callback function has the following signature:
+ *  @code
+ *  void callback_name(GLFWwindow* window, int width, int height)
+ *  @endcode
+ *
+ *  @param[in] window The window that was resized.
+ *  @param[in] width The new width, in screen coordinates, of the window.
+ *  @param[in] height The new height, in screen coordinates, of the window.
+ *
+ *  @sa @ref window_size
+ *  @sa @ref glfwSetWindowSizeCallback
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowsizefun)(GLFWwindow* window, int width, int height);
+
+/*! @brief The function pointer type for window close callbacks.
+ *
+ *  This is the function pointer type for window close callbacks.  A window
+ *  close callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window)
+ *  @endcode
+ *
+ *  @param[in] window The window that the user attempted to close.
+ *
+ *  @sa @ref window_close
+ *  @sa @ref glfwSetWindowCloseCallback
+ *
+ *  @since Added in version 2.5.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowclosefun)(GLFWwindow* window);
+
+/*! @brief The function pointer type for window content refresh callbacks.
+ *
+ *  This is the function pointer type for window content refresh callbacks.
+ *  A window content refresh callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window);
+ *  @endcode
+ *
+ *  @param[in] window The window whose content needs to be refreshed.
+ *
+ *  @sa @ref window_refresh
+ *  @sa @ref glfwSetWindowRefreshCallback
+ *
+ *  @since Added in version 2.5.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowrefreshfun)(GLFWwindow* window);
+
+/*! @brief The function pointer type for window focus callbacks.
+ *
+ *  This is the function pointer type for window focus callbacks.  A window
+ *  focus callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int focused)
+ *  @endcode
+ *
+ *  @param[in] window The window that gained or lost input focus.
+ *  @param[in] focused `GLFW_TRUE` if the window was given input focus, or
+ *  `GLFW_FALSE` if it lost it.
+ *
+ *  @sa @ref window_focus
+ *  @sa @ref glfwSetWindowFocusCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowfocusfun)(GLFWwindow* window, int focused);
+
+/*! @brief The function pointer type for window iconify callbacks.
+ *
+ *  This is the function pointer type for window iconify callbacks.  A window
+ *  iconify callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int iconified)
+ *  @endcode
+ *
+ *  @param[in] window The window that was iconified or restored.
+ *  @param[in] iconified `GLFW_TRUE` if the window was iconified, or
+ *  `GLFW_FALSE` if it was restored.
+ *
+ *  @sa @ref window_iconify
+ *  @sa @ref glfwSetWindowIconifyCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowiconifyfun)(GLFWwindow* window, int iconified);
+
+/*! @brief The function pointer type for window maximize callbacks.
+ *
+ *  This is the function pointer type for window maximize callbacks.  A window
+ *  maximize callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int maximized)
+ *  @endcode
+ *
+ *  @param[in] window The window that was maximized or restored.
+ *  @param[in] maximized `GLFW_TRUE` if the window was maximized, or
+ *  `GLFW_FALSE` if it was restored.
+ *
+ *  @sa @ref window_maximize
+ *  @sa glfwSetWindowMaximizeCallback
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowmaximizefun)(GLFWwindow* window, int maximized);
+
+/*! @brief The function pointer type for framebuffer size callbacks.
+ *
+ *  This is the function pointer type for framebuffer size callbacks.
+ *  A framebuffer size callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int width, int height)
+ *  @endcode
+ *
+ *  @param[in] window The window whose framebuffer was resized.
+ *  @param[in] width The new width, in pixels, of the framebuffer.
+ *  @param[in] height The new height, in pixels, of the framebuffer.
+ *
+ *  @sa @ref window_fbsize
+ *  @sa @ref glfwSetFramebufferSizeCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWframebuffersizefun)(GLFWwindow* window, int width, int height);
+
+/*! @brief The function pointer type for window content scale callbacks.
+ *
+ *  This is the function pointer type for window content scale callbacks.
+ *  A window content scale callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, float xscale, float yscale)
+ *  @endcode
+ *
+ *  @param[in] window The window whose content scale changed.
+ *  @param[in] xscale The new x-axis content scale of the window.
+ *  @param[in] yscale The new y-axis content scale of the window.
+ *
+ *  @sa @ref window_scale
+ *  @sa @ref glfwSetWindowContentScaleCallback
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowcontentscalefun)(GLFWwindow* window, float xscale, float yscale);
+
+/*! @brief The function pointer type for mouse button callbacks.
+ *
+ *  This is the function pointer type for mouse button callback functions.
+ *  A mouse button callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int button, int action, int mods)
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] button The [mouse button](@ref buttons) that was pressed or
+ *  released.
+ *  @param[in] action One of `GLFW_PRESS` or `GLFW_RELEASE`.  Future releases
+ *  may add more actions.
+ *  @param[in] mods Bit field describing which [modifier keys](@ref mods) were
+ *  held down.
+ *
+ *  @sa @ref input_mouse_button
+ *  @sa @ref glfwSetMouseButtonCallback
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle and modifier mask parameters.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWmousebuttonfun)(GLFWwindow* window, int button, int action, int mods);
+
+/*! @brief The function pointer type for cursor position callbacks.
+ *
+ *  This is the function pointer type for cursor position callbacks.  A cursor
+ *  position callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, double xpos, double ypos);
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] xpos The new cursor x-coordinate, relative to the left edge of
+ *  the content area.
+ *  @param[in] ypos The new cursor y-coordinate, relative to the top edge of the
+ *  content area.
+ *
+ *  @sa @ref cursor_pos
+ *  @sa @ref glfwSetCursorPosCallback
+ *
+ *  @since Added in version 3.0.  Replaces `GLFWmouseposfun`.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWcursorposfun)(GLFWwindow* window, double xpos, double ypos);
+
+/*! @brief The function pointer type for cursor enter/leave callbacks.
+ *
+ *  This is the function pointer type for cursor enter/leave callbacks.
+ *  A cursor enter/leave callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int entered)
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] entered `GLFW_TRUE` if the cursor entered the window's content
+ *  area, or `GLFW_FALSE` if it left it.
+ *
+ *  @sa @ref cursor_enter
+ *  @sa @ref glfwSetCursorEnterCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWcursorenterfun)(GLFWwindow* window, int entered);
+
+/*! @brief The function pointer type for scroll callbacks.
+ *
+ *  This is the function pointer type for scroll callbacks.  A scroll callback
+ *  function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, double xoffset, double yoffset)
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] xoffset The scroll offset along the x-axis.
+ *  @param[in] yoffset The scroll offset along the y-axis.
+ *
+ *  @sa @ref scrolling
+ *  @sa @ref glfwSetScrollCallback
+ *
+ *  @since Added in version 3.0.  Replaces `GLFWmousewheelfun`.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWscrollfun)(GLFWwindow* window, double xoffset, double yoffset);
+
+/*! @brief The function pointer type for keyboard key callbacks.
+ *
+ *  This is the function pointer type for keyboard key callbacks.  A keyboard
+ *  key callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int key, int scancode, int action, int mods)
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] key The [keyboard key](@ref keys) that was pressed or released.
+ *  @param[in] scancode The platform-specific scancode of the key.
+ *  @param[in] action `GLFW_PRESS`, `GLFW_RELEASE` or `GLFW_REPEAT`.  Future
+ *  releases may add more actions.
+ *  @param[in] mods Bit field describing which [modifier keys](@ref mods) were
+ *  held down.
+ *
+ *  @sa @ref input_key
+ *  @sa @ref glfwSetKeyCallback
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle, scancode and modifier mask parameters.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWkeyfun)(GLFWwindow* window, int key, int scancode, int action, int mods);
+
+/*! @brief The function pointer type for Unicode character callbacks.
+ *
+ *  This is the function pointer type for Unicode character callbacks.
+ *  A Unicode character callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, unsigned int codepoint)
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] codepoint The Unicode code point of the character.
+ *
+ *  @sa @ref input_char
+ *  @sa @ref glfwSetCharCallback
+ *
+ *  @since Added in version 2.4.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWcharfun)(GLFWwindow* window, unsigned int codepoint);
+
+/*! @brief The function pointer type for Unicode character with modifiers
+ *  callbacks.
+ *
+ *  This is the function pointer type for Unicode character with modifiers
+ *  callbacks.  It is called for each input character, regardless of what
+ *  modifier keys are held down.  A Unicode character with modifiers callback
+ *  function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, unsigned int codepoint, int mods)
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] codepoint The Unicode code point of the character.
+ *  @param[in] mods Bit field describing which [modifier keys](@ref mods) were
+ *  held down.
+ *
+ *  @sa @ref input_char
+ *  @sa @ref glfwSetCharModsCallback
+ *
+ *  @deprecated Scheduled for removal in version 4.0.
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWcharmodsfun)(GLFWwindow* window, unsigned int codepoint, int mods);
+
+/*! @brief The function pointer type for path drop callbacks.
+ *
+ *  This is the function pointer type for path drop callbacks.  A path drop
+ *  callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int path_count, const char* paths[])
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] path_count The number of dropped paths.
+ *  @param[in] paths The UTF-8 encoded file and/or directory path names.
+ *
+ *  @pointer_lifetime The path array and its strings are valid until the
+ *  callback function returns.
+ *
+ *  @sa @ref path_drop
+ *  @sa @ref glfwSetDropCallback
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWdropfun)(GLFWwindow* window, int path_count, const char* paths[]);
+
+/*! @brief The function pointer type for monitor configuration callbacks.
+ *
+ *  This is the function pointer type for monitor configuration callbacks.
+ *  A monitor callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWmonitor* monitor, int event)
+ *  @endcode
+ *
+ *  @param[in] monitor The monitor that was connected or disconnected.
+ *  @param[in] event One of `GLFW_CONNECTED` or `GLFW_DISCONNECTED`.  Future
+ *  releases may add more events.
+ *
+ *  @sa @ref monitor_event
+ *  @sa @ref glfwSetMonitorCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+typedef void (* GLFWmonitorfun)(GLFWmonitor* monitor, int event);
+
+/*! @brief The function pointer type for joystick configuration callbacks.
+ *
+ *  This is the function pointer type for joystick configuration callbacks.
+ *  A joystick configuration callback function has the following signature:
+ *  @code
+ *  void function_name(int jid, int event)
+ *  @endcode
+ *
+ *  @param[in] jid The joystick that was connected or disconnected.
+ *  @param[in] event One of `GLFW_CONNECTED` or `GLFW_DISCONNECTED`.  Future
+ *  releases may add more events.
+ *
+ *  @sa @ref joystick_event
+ *  @sa @ref glfwSetJoystickCallback
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWjoystickfun)(int jid, int event);
+
+/*! @brief Video mode type.
+ *
+ *  This describes a single video mode.
+ *
+ *  @sa @ref monitor_modes
+ *  @sa @ref glfwGetVideoMode
+ *  @sa @ref glfwGetVideoModes
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added refresh rate member.
+ *
+ *  @ingroup monitor
+ */
+typedef struct GLFWvidmode
+{
+    /*! The width, in screen coordinates, of the video mode.
+     */
+    int width;
+    /*! The height, in screen coordinates, of the video mode.
+     */
+    int height;
+    /*! The bit depth of the red channel of the video mode.
+     */
+    int redBits;
+    /*! The bit depth of the green channel of the video mode.
+     */
+    int greenBits;
+    /*! The bit depth of the blue channel of the video mode.
+     */
+    int blueBits;
+    /*! The refresh rate, in Hz, of the video mode.
+     */
+    int refreshRate;
+} GLFWvidmode;
+
+/*! @brief Gamma ramp.
+ *
+ *  This describes the gamma ramp for a monitor.
+ *
+ *  @sa @ref monitor_gamma
+ *  @sa @ref glfwGetGammaRamp
+ *  @sa @ref glfwSetGammaRamp
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+typedef struct GLFWgammaramp
+{
+    /*! An array of value describing the response of the red channel.
+     */
+    unsigned short* red;
+    /*! An array of value describing the response of the green channel.
+     */
+    unsigned short* green;
+    /*! An array of value describing the response of the blue channel.
+     */
+    unsigned short* blue;
+    /*! The number of elements in each array.
+     */
+    unsigned int size;
+} GLFWgammaramp;
+
+/*! @brief Image data.
+ *
+ *  This describes a single 2D image.  See the documentation for each related
+ *  function what the expected pixel format is.
+ *
+ *  @sa @ref cursor_custom
+ *  @sa @ref window_icon
+ *
+ *  @since Added in version 2.1.
+ *  @glfw3 Removed format and bytes-per-pixel members.
+ *
+ *  @ingroup window
+ */
+typedef struct GLFWimage
+{
+    /*! The width, in pixels, of this image.
+     */
+    int width;
+    /*! The height, in pixels, of this image.
+     */
+    int height;
+    /*! The pixel data of this image, arranged left-to-right, top-to-bottom.
+     */
+    unsigned char* pixels;
+} GLFWimage;
+
+/*! @brief Gamepad input state
+ *
+ *  This describes the input state of a gamepad.
+ *
+ *  @sa @ref gamepad
+ *  @sa @ref glfwGetGamepadState
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+typedef struct GLFWgamepadstate
+{
+    /*! The states of each [gamepad button](@ref gamepad_buttons), `GLFW_PRESS`
+     *  or `GLFW_RELEASE`.
+     */
+    unsigned char buttons[15];
+    /*! The states of each [gamepad axis](@ref gamepad_axes), in the range -1.0
+     *  to 1.0 inclusive.
+     */
+    float axes[6];
+} GLFWgamepadstate;
+
+/*! @brief Custom heap memory allocator.
+ *
+ *  This describes a custom heap memory allocator for GLFW.  To set an allocator, pass it
+ *  to @ref glfwInitAllocator before initializing the library.
+ *
+ *  @sa @ref init_allocator
+ *  @sa @ref glfwInitAllocator
+ *
+ *  @since Added in version 3.4.
+ *
+ *  @ingroup init
+ */
+typedef struct GLFWallocator
+{
+    /*! The memory allocation function.  See @ref GLFWallocatefun for details about
+     *  allocation function.
+     */
+    GLFWallocatefun allocate;
+    /*! The memory reallocation function.  See @ref GLFWreallocatefun for details about
+     *  reallocation function.
+     */
+    GLFWreallocatefun reallocate;
+    /*! The memory deallocation function.  See @ref GLFWdeallocatefun for details about
+     *  deallocation function.
+     */
+    GLFWdeallocatefun deallocate;
+    /*! The user pointer for this custom allocator.  This value will be passed to the
+     *  allocator functions.
+     */
+    void* user;
+} GLFWallocator;
+
+
+/*************************************************************************
+ * GLFW API functions
+ *************************************************************************/
+
+/*! @brief Initializes the GLFW library.
+ *
+ *  This function initializes the GLFW library.  Before most GLFW functions can
+ *  be used, GLFW must be initialized, and before an application terminates GLFW
+ *  should be terminated in order to free any resources allocated during or
+ *  after initialization.
+ *
+ *  If this function fails, it calls @ref glfwTerminate before returning.  If it
+ *  succeeds, you should call @ref glfwTerminate before the application exits.
+ *
+ *  Additional calls to this function after successful initialization but before
+ *  termination will return `GLFW_TRUE` immediately.
+ *
+ *  The @ref GLFW_PLATFORM init hint controls which platforms are considered during
+ *  initialization.  This also depends on which platforms the library was compiled to
+ *  support.
+ *
+ *  @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_PLATFORM_UNAVAILABLE and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @macos This function will change the current directory of the
+ *  application to the `Contents/Resources` subdirectory of the application's
+ *  bundle, if present.  This can be disabled with the @ref
+ *  GLFW_COCOA_CHDIR_RESOURCES init hint.
+ *
+ *  @remark @macos This function will create the main menu and dock icon for the
+ *  application.  If GLFW finds a `MainMenu.nib` it is loaded and assumed to
+ *  contain a menu bar.  Otherwise a minimal menu bar is created manually with
+ *  common commands like Hide, Quit and About.  The About entry opens a minimal
+ *  about dialog with information from the application's bundle.  The menu bar
+ *  and dock icon can be disabled entirely with the @ref GLFW_COCOA_MENUBAR init
+ *  hint.
+ *
+ *  @remark __Wayland, X11:__ If the library was compiled with support for both
+ *  Wayland and X11, and the @ref GLFW_PLATFORM init hint is set to
+ *  `GLFW_ANY_PLATFORM`, the `XDG_SESSION_TYPE` environment variable affects
+ *  which platform is picked.  If the environment variable is not set, or is set
+ *  to something other than `wayland` or `x11`, the regular detection mechanism
+ *  will be used instead.
+ *
+ *  @remark @x11 This function will set the `LC_CTYPE` category of the
+ *  application locale according to the current environment if that category is
+ *  still "C".  This is because the "C" locale breaks Unicode text input.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref intro_init
+ *  @sa @ref glfwInitHint
+ *  @sa @ref glfwInitAllocator
+ *  @sa @ref glfwTerminate
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup init
+ */
+GLFWAPI int glfwInit(void);
+
+/*! @brief Terminates the GLFW library.
+ *
+ *  This function destroys all remaining windows and cursors, restores any
+ *  modified gamma ramps and frees any other allocated resources.  Once this
+ *  function is called, you must again call @ref glfwInit successfully before
+ *  you will be able to use most GLFW functions.
+ *
+ *  If GLFW has been successfully initialized, this function should be called
+ *  before the application exits.  If initialization fails, there is no need to
+ *  call this function, as it is called by @ref glfwInit before it returns
+ *  failure.
+ *
+ *  This function has no effect if GLFW is not initialized.
+ *
+ *  @errors Possible errors include @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark This function may be called before @ref glfwInit.
+ *
+ *  @warning The contexts of any remaining windows must not be current on any
+ *  other thread when this function is called.
+ *
+ *  @reentrancy This function must not be called from a callback.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref intro_init
+ *  @sa @ref glfwInit
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup init
+ */
+GLFWAPI void glfwTerminate(void);
+
+/*! @brief Sets the specified init hint to the desired value.
+ *
+ *  This function sets hints for the next initialization of GLFW.
+ *
+ *  The values you set hints to are never reset by GLFW, but they only take
+ *  effect during initialization.  Once GLFW has been initialized, any values
+ *  you set will be ignored until the library is terminated and initialized
+ *  again.
+ *
+ *  Some hints are platform specific.  These may be set on any platform but they
+ *  will only affect their specific platform.  Other platforms will ignore them.
+ *  Setting these hints requires no platform specific headers or functions.
+ *
+ *  @param[in] hint The [init hint](@ref init_hints) to set.
+ *  @param[in] value The new value of the init hint.
+ *
+ *  @errors Possible errors include @ref GLFW_INVALID_ENUM and @ref
+ *  GLFW_INVALID_VALUE.
+ *
+ *  @remarks This function may be called before @ref glfwInit.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa init_hints
+ *  @sa glfwInit
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup init
+ */
+GLFWAPI void glfwInitHint(int hint, int value);
+
+/*! @brief Sets the init allocator to the desired value.
+ *
+ *  To use the default allocator, call this function with a `NULL` argument.
+ *
+ *  If you specify an allocator struct, every member must be a valid function
+ *  pointer.  If any member is `NULL`, this function will emit @ref
+ *  GLFW_INVALID_VALUE and the init allocator will be unchanged.
+ *
+ *  The functions in the allocator must fulfil a number of requirements.  See the
+ *  documentation for @ref GLFWallocatefun, @ref GLFWreallocatefun and @ref
+ *  GLFWdeallocatefun for details.
+ *
+ *  @param[in] allocator The allocator to use at the next initialization, or
+ *  `NULL` to use the default one.
+ *
+ *  @errors Possible errors include @ref GLFW_INVALID_VALUE.
+ *
+ *  @pointer_lifetime The specified allocator is copied before this function
+ *  returns.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref init_allocator
+ *  @sa @ref glfwInit
+ *
+ *  @since Added in version 3.4.
+ *
+ *  @ingroup init
+ */
+GLFWAPI void glfwInitAllocator(const GLFWallocator* allocator);
+
+#if defined(VK_VERSION_1_0)
+
+/*! @brief Sets the desired Vulkan `vkGetInstanceProcAddr` function.
+ *
+ *  This function sets the `vkGetInstanceProcAddr` function that GLFW will use for all
+ *  Vulkan related entry point queries.
+ *
+ *  This feature is mostly useful on macOS, if your copy of the Vulkan loader is in
+ *  a location where GLFW cannot find it through dynamic loading, or if you are still
+ *  using the static library version of the loader.
+ *
+ *  If set to `NULL`, GLFW will try to load the Vulkan loader dynamically by its standard
+ *  name and get this function from there.  This is the default behavior.
+ *
+ *  The standard name of the loader is `vulkan-1.dll` on Windows, `libvulkan.so.1` on
+ *  Linux and other Unix-like systems and `libvulkan.1.dylib` on macOS.  If your code is
+ *  also loading it via these names then you probably don't need to use this function.
+ *
+ *  The function address you set is never reset by GLFW, but it only takes effect during
+ *  initialization.  Once GLFW has been initialized, any updates will be ignored until the
+ *  library is terminated and initialized again.
+ *
+ *  @param[in] loader The address of the function to use, or `NULL`.
+ *
+ *  @par Loader function signature
+ *  @code
+ *  PFN_vkVoidFunction vkGetInstanceProcAddr(VkInstance instance, const char* name)
+ *  @endcode
+ *  For more information about this function, see the
+ *  [Vulkan Registry](https://www.khronos.org/registry/vulkan/).
+ *
+ *  @errors None.
+ *
+ *  @remark This function may be called before @ref glfwInit.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref vulkan_loader
+ *  @sa @ref glfwInit
+ *
+ *  @since Added in version 3.4.
+ *
+ *  @ingroup init
+ */
+GLFWAPI void glfwInitVulkanLoader(PFN_vkGetInstanceProcAddr loader);
+
+#endif /*VK_VERSION_1_0*/
+
+/*! @brief Retrieves the version of the GLFW library.
+ *
+ *  This function retrieves the major, minor and revision numbers of the GLFW
+ *  library.  It is intended for when you are using GLFW as a shared library and
+ *  want to ensure that you are using the minimum required version.
+ *
+ *  Any or all of the version arguments may be `NULL`.
+ *
+ *  @param[out] major Where to store the major version number, or `NULL`.
+ *  @param[out] minor Where to store the minor version number, or `NULL`.
+ *  @param[out] rev Where to store the revision number, or `NULL`.
+ *
+ *  @errors None.
+ *
+ *  @remark This function may be called before @ref glfwInit.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref intro_version
+ *  @sa @ref glfwGetVersionString
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup init
+ */
+GLFWAPI void glfwGetVersion(int* major, int* minor, int* rev);
+
+/*! @brief Returns a string describing the compile-time configuration.
+ *
+ *  This function returns the compile-time generated
+ *  [version string](@ref intro_version_string) of the GLFW library binary.  It describes
+ *  the version, platforms, compiler and any platform or operating system specific
+ *  compile-time options.  It should not be confused with the OpenGL or OpenGL ES version
+ *  string, queried with `glGetString`.
+ *
+ *  __Do not use the version string__ to parse the GLFW library version.  The
+ *  @ref glfwGetVersion function provides the version of the running library
+ *  binary in numerical format.
+ *
+ *  __Do not use the version string__ to parse what platforms are supported.  The @ref
+ *  glfwPlatformSupported function lets you query platform support.
+ *
+ *  @return The ASCII encoded GLFW version string.
+ *
+ *  @errors None.
+ *
+ *  @remark This function may be called before @ref glfwInit.
+ *
+ *  @pointer_lifetime The returned string is static and compile-time generated.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref intro_version
+ *  @sa @ref glfwGetVersion
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup init
+ */
+GLFWAPI const char* glfwGetVersionString(void);
+
+/*! @brief Returns and clears the last error for the calling thread.
+ *
+ *  This function returns and clears the [error code](@ref errors) of the last
+ *  error that occurred on the calling thread, and optionally a UTF-8 encoded
+ *  human-readable description of it.  If no error has occurred since the last
+ *  call, it returns @ref GLFW_NO_ERROR (zero) and the description pointer is
+ *  set to `NULL`.
+ *
+ *  @param[in] description Where to store the error description pointer, or `NULL`.
+ *  @return The last error code for the calling thread, or @ref GLFW_NO_ERROR
+ *  (zero).
+ *
+ *  @errors None.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is guaranteed to be valid only until the
+ *  next error occurs or the library is terminated.
+ *
+ *  @remark This function may be called before @ref glfwInit.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref error_handling
+ *  @sa @ref glfwSetErrorCallback
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup init
+ */
+GLFWAPI int glfwGetError(const char** description);
+
+/*! @brief Sets the error callback.
+ *
+ *  This function sets the error callback, which is called with an error code
+ *  and a human-readable description each time a GLFW error occurs.
+ *
+ *  The error code is set before the callback is called.  Calling @ref
+ *  glfwGetError from the error callback will return the same value as the error
+ *  code argument.
+ *
+ *  The error callback is called on the thread where the error occurred.  If you
+ *  are using GLFW from multiple threads, your error callback needs to be
+ *  written accordingly.
+ *
+ *  Because the description string may have been generated specifically for that
+ *  error, it is not guaranteed to be valid after the callback has returned.  If
+ *  you wish to use it after the callback returns, you need to make a copy.
+ *
+ *  Once set, the error callback remains set even after the library has been
+ *  terminated.
+ *
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set.
+ *
+ *  @callback_signature
+ *  @code
+ *  void callback_name(int error_code, const char* description)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [callback pointer type](@ref GLFWerrorfun).
+ *
+ *  @errors None.
+ *
+ *  @remark This function may be called before @ref glfwInit.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref error_handling
+ *  @sa @ref glfwGetError
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup init
+ */
+GLFWAPI GLFWerrorfun glfwSetErrorCallback(GLFWerrorfun callback);
+
+/*! @brief Returns the currently selected platform.
+ *
+ *  This function returns the platform that was selected during initialization.  The
+ *  returned value will be one of `GLFW_PLATFORM_WIN32`, `GLFW_PLATFORM_COCOA`,
+ *  `GLFW_PLATFORM_WAYLAND`, `GLFW_PLATFORM_X11` or `GLFW_PLATFORM_NULL`.
+ *
+ *  @return The currently selected platform, or zero if an error occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref platform
+ *  @sa @ref glfwPlatformSupported
+ *
+ *  @since Added in version 3.4.
+ *
+ *  @ingroup init
+ */
+GLFWAPI int glfwGetPlatform(void);
+
+/*! @brief Returns whether the library includes support for the specified platform.
+ *
+ *  This function returns whether the library was compiled with support for the specified
+ *  platform.  The platform must be one of `GLFW_PLATFORM_WIN32`, `GLFW_PLATFORM_COCOA`,
+ *  `GLFW_PLATFORM_WAYLAND`, `GLFW_PLATFORM_X11` or `GLFW_PLATFORM_NULL`.
+ *
+ *  @param[in] platform The platform to query.
+ *  @return `GLFW_TRUE` if the platform is supported, or `GLFW_FALSE` otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_INVALID_ENUM.
+ *
+ *  @remark This function may be called before @ref glfwInit.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref platform
+ *  @sa @ref glfwGetPlatform
+ *
+ *  @since Added in version 3.4.
+ *
+ *  @ingroup init
+ */
+GLFWAPI int glfwPlatformSupported(int platform);
+
+/*! @brief Returns the currently connected monitors.
+ *
+ *  This function returns an array of handles for all currently connected
+ *  monitors.  The primary monitor is always first in the returned array.  If no
+ *  monitors were found, this function returns `NULL`.
+ *
+ *  @param[out] count Where to store the number of monitors in the returned
+ *  array.  This is set to zero if an error occurred.
+ *  @return An array of monitor handles, or `NULL` if no monitors were found or
+ *  if an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is guaranteed to be valid only until the
+ *  monitor configuration changes or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_monitors
+ *  @sa @ref monitor_event
+ *  @sa @ref glfwGetPrimaryMonitor
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI GLFWmonitor** glfwGetMonitors(int* count);
+
+/*! @brief Returns the primary monitor.
+ *
+ *  This function returns the primary monitor.  This is usually the monitor
+ *  where elements like the task bar or global menu bar are located.
+ *
+ *  @return The primary monitor, or `NULL` if no monitors were found or if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @remark The primary monitor is always first in the array returned by @ref
+ *  glfwGetMonitors.
+ *
+ *  @sa @ref monitor_monitors
+ *  @sa @ref glfwGetMonitors
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI GLFWmonitor* glfwGetPrimaryMonitor(void);
+
+/*! @brief Returns the position of the monitor's viewport on the virtual screen.
+ *
+ *  This function returns the position, in screen coordinates, of the upper-left
+ *  corner of the specified monitor.
+ *
+ *  Any or all of the position arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` position arguments will be set to zero.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @param[out] xpos Where to store the monitor x-coordinate, or `NULL`.
+ *  @param[out] ypos Where to store the monitor y-coordinate, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_properties
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwGetMonitorPos(GLFWmonitor* monitor, int* xpos, int* ypos);
+
+/*! @brief Retrieves the work area of the monitor.
+ *
+ *  This function returns the position, in screen coordinates, of the upper-left
+ *  corner of the work area of the specified monitor along with the work area
+ *  size in screen coordinates. The work area is defined as the area of the
+ *  monitor not occluded by the window system task bar where present. If no
+ *  task bar exists then the work area is the monitor resolution in screen
+ *  coordinates.
+ *
+ *  Any or all of the position and size arguments may be `NULL`.  If an error
+ *  occurs, all non-`NULL` position and size arguments will be set to zero.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @param[out] xpos Where to store the monitor x-coordinate, or `NULL`.
+ *  @param[out] ypos Where to store the monitor y-coordinate, or `NULL`.
+ *  @param[out] width Where to store the monitor width, or `NULL`.
+ *  @param[out] height Where to store the monitor height, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_workarea
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwGetMonitorWorkarea(GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
+
+/*! @brief Returns the physical size of the monitor.
+ *
+ *  This function returns the size, in millimetres, of the display area of the
+ *  specified monitor.
+ *
+ *  Some platforms do not provide accurate monitor size information, either
+ *  because the monitor [EDID][] data is incorrect or because the driver does
+ *  not report it accurately.
+ *
+ *  [EDID]: https://en.wikipedia.org/wiki/Extended_display_identification_data
+ *
+ *  Any or all of the size arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` size arguments will be set to zero.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @param[out] widthMM Where to store the width, in millimetres, of the
+ *  monitor's display area, or `NULL`.
+ *  @param[out] heightMM Where to store the height, in millimetres, of the
+ *  monitor's display area, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @remark @win32 On Windows 8 and earlier the physical size is calculated from
+ *  the current resolution and system DPI instead of querying the monitor EDID data.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_properties
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwGetMonitorPhysicalSize(GLFWmonitor* monitor, int* widthMM, int* heightMM);
+
+/*! @brief Retrieves the content scale for the specified monitor.
+ *
+ *  This function retrieves the content scale for the specified monitor.  The
+ *  content scale is the ratio between the current DPI and the platform's
+ *  default DPI.  This is especially important for text and any UI elements.  If
+ *  the pixel dimensions of your UI scaled by this look appropriate on your
+ *  machine then it should appear at a reasonable size on other machines
+ *  regardless of their DPI and scaling settings.  This relies on the system DPI
+ *  and scaling settings being somewhat correct.
+ *
+ *  The content scale may depend on both the monitor resolution and pixel
+ *  density and on user settings.  It may be very different from the raw DPI
+ *  calculated from the physical size and current resolution.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @param[out] xscale Where to store the x-axis content scale, or `NULL`.
+ *  @param[out] yscale Where to store the y-axis content scale, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @wayland Fractional scaling information is not yet available for
+ *  monitors, so this function only returns integer content scales.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_scale
+ *  @sa @ref glfwGetWindowContentScale
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwGetMonitorContentScale(GLFWmonitor* monitor, float* xscale, float* yscale);
+
+/*! @brief Returns the name of the specified monitor.
+ *
+ *  This function returns a human-readable name, encoded as UTF-8, of the
+ *  specified monitor.  The name typically reflects the make and model of the
+ *  monitor and is not guaranteed to be unique among the connected monitors.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @return The UTF-8 encoded name of the monitor, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified monitor is
+ *  disconnected or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_properties
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI const char* glfwGetMonitorName(GLFWmonitor* monitor);
+
+/*! @brief Sets the user pointer of the specified monitor.
+ *
+ *  This function sets the user-defined pointer of the specified monitor.  The
+ *  current value is retained until the monitor is disconnected.  The initial
+ *  value is `NULL`.
+ *
+ *  This function may be called from the monitor callback, even for a monitor
+ *  that is being disconnected.
+ *
+ *  @param[in] monitor The monitor whose pointer to set.
+ *  @param[in] pointer The new value.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref monitor_userptr
+ *  @sa @ref glfwGetMonitorUserPointer
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwSetMonitorUserPointer(GLFWmonitor* monitor, void* pointer);
+
+/*! @brief Returns the user pointer of the specified monitor.
+ *
+ *  This function returns the current value of the user-defined pointer of the
+ *  specified monitor.  The initial value is `NULL`.
+ *
+ *  This function may be called from the monitor callback, even for a monitor
+ *  that is being disconnected.
+ *
+ *  @param[in] monitor The monitor whose pointer to return.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref monitor_userptr
+ *  @sa @ref glfwSetMonitorUserPointer
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void* glfwGetMonitorUserPointer(GLFWmonitor* monitor);
+
+/*! @brief Sets the monitor configuration callback.
+ *
+ *  This function sets the monitor configuration callback, or removes the
+ *  currently set callback.  This is called when a monitor is connected to or
+ *  disconnected from the system.
+ *
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWmonitor* monitor, int event)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWmonitorfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_event
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI GLFWmonitorfun glfwSetMonitorCallback(GLFWmonitorfun callback);
+
+/*! @brief Returns the available video modes for the specified monitor.
+ *
+ *  This function returns an array of all video modes supported by the specified
+ *  monitor.  The returned array is sorted in ascending order, first by color
+ *  bit depth (the sum of all channel depths), then by resolution area (the
+ *  product of width and height), then resolution width and finally by refresh
+ *  rate.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @param[out] count Where to store the number of video modes in the returned
+ *  array.  This is set to zero if an error occurred.
+ *  @return An array of video modes, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified monitor is
+ *  disconnected, this function is called again for that monitor or the library
+ *  is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_modes
+ *  @sa @ref glfwGetVideoMode
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Changed to return an array of modes for a specific monitor.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI const GLFWvidmode* glfwGetVideoModes(GLFWmonitor* monitor, int* count);
+
+/*! @brief Returns the current mode of the specified monitor.
+ *
+ *  This function returns the current video mode of the specified monitor.  If
+ *  you have created a full screen window for that monitor, the return value
+ *  will depend on whether that window is iconified.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @return The current mode of the monitor, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified monitor is
+ *  disconnected or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_modes
+ *  @sa @ref glfwGetVideoModes
+ *
+ *  @since Added in version 3.0.  Replaces `glfwGetDesktopMode`.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI const GLFWvidmode* glfwGetVideoMode(GLFWmonitor* monitor);
+
+/*! @brief Generates a gamma ramp and sets it for the specified monitor.
+ *
+ *  This function generates an appropriately sized gamma ramp from the specified
+ *  exponent and then calls @ref glfwSetGammaRamp with it.  The value must be
+ *  a finite number greater than zero.
+ *
+ *  The software controlled gamma ramp is applied _in addition_ to the hardware
+ *  gamma correction, which today is usually an approximation of sRGB gamma.
+ *  This means that setting a perfectly linear ramp, or gamma 1.0, will produce
+ *  the default (usually sRGB-like) behavior.
+ *
+ *  For gamma correct rendering with OpenGL or OpenGL ES, see the @ref
+ *  GLFW_SRGB_CAPABLE hint.
+ *
+ *  @param[in] monitor The monitor whose gamma ramp to set.
+ *  @param[in] gamma The desired exponent.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref GLFW_INVALID_VALUE,
+ *  @ref GLFW_PLATFORM_ERROR and @ref GLFW_FEATURE_UNAVAILABLE (see remarks).
+ *
+ *  @remark @wayland Gamma handling is a privileged protocol, this function
+ *  will thus never be implemented and emits @ref GLFW_FEATURE_UNAVAILABLE.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_gamma
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwSetGamma(GLFWmonitor* monitor, float gamma);
+
+/*! @brief Returns the current gamma ramp for the specified monitor.
+ *
+ *  This function returns the current gamma ramp of the specified monitor.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @return The current gamma ramp, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref GLFW_PLATFORM_ERROR
+ *  and @ref GLFW_FEATURE_UNAVAILABLE (see remarks).
+ *
+ *  @remark @wayland Gamma handling is a privileged protocol, this function
+ *  will thus never be implemented and emits @ref GLFW_FEATURE_UNAVAILABLE while
+ *  returning `NULL`.
+ *
+ *  @pointer_lifetime The returned structure and its arrays are allocated and
+ *  freed by GLFW.  You should not free them yourself.  They are valid until the
+ *  specified monitor is disconnected, this function is called again for that
+ *  monitor or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_gamma
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI const GLFWgammaramp* glfwGetGammaRamp(GLFWmonitor* monitor);
+
+/*! @brief Sets the current gamma ramp for the specified monitor.
+ *
+ *  This function sets the current gamma ramp for the specified monitor.  The
+ *  original gamma ramp for that monitor is saved by GLFW the first time this
+ *  function is called and is restored by @ref glfwTerminate.
+ *
+ *  The software controlled gamma ramp is applied _in addition_ to the hardware
+ *  gamma correction, which today is usually an approximation of sRGB gamma.
+ *  This means that setting a perfectly linear ramp, or gamma 1.0, will produce
+ *  the default (usually sRGB-like) behavior.
+ *
+ *  For gamma correct rendering with OpenGL or OpenGL ES, see the @ref
+ *  GLFW_SRGB_CAPABLE hint.
+ *
+ *  @param[in] monitor The monitor whose gamma ramp to set.
+ *  @param[in] ramp The gamma ramp to use.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref GLFW_PLATFORM_ERROR
+ *  and @ref GLFW_FEATURE_UNAVAILABLE (see remarks).
+ *
+ *  @remark The size of the specified gamma ramp should match the size of the
+ *  current ramp for that monitor.
+ *
+ *  @remark @win32 The gamma ramp size must be 256.
+ *
+ *  @remark @wayland Gamma handling is a privileged protocol, this function
+ *  will thus never be implemented and emits @ref GLFW_FEATURE_UNAVAILABLE.
+ *
+ *  @pointer_lifetime The specified gamma ramp is copied before this function
+ *  returns.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_gamma
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwSetGammaRamp(GLFWmonitor* monitor, const GLFWgammaramp* ramp);
+
+/*! @brief Resets all window hints to their default values.
+ *
+ *  This function resets all window hints to their
+ *  [default values](@ref window_hints_values).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_hints
+ *  @sa @ref glfwWindowHint
+ *  @sa @ref glfwWindowHintString
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwDefaultWindowHints(void);
+
+/*! @brief Sets the specified window hint to the desired value.
+ *
+ *  This function sets hints for the next call to @ref glfwCreateWindow.  The
+ *  hints, once set, retain their values until changed by a call to this
+ *  function or @ref glfwDefaultWindowHints, or until the library is terminated.
+ *
+ *  Only integer value hints can be set with this function.  String value hints
+ *  are set with @ref glfwWindowHintString.
+ *
+ *  This function does not check whether the specified hint values are valid.
+ *  If you set hints to invalid values this will instead be reported by the next
+ *  call to @ref glfwCreateWindow.
+ *
+ *  Some hints are platform specific.  These may be set on any platform but they
+ *  will only affect their specific platform.  Other platforms will ignore them.
+ *  Setting these hints requires no platform specific headers or functions.
+ *
+ *  @param[in] hint The [window hint](@ref window_hints) to set.
+ *  @param[in] value The new value of the window hint.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_hints
+ *  @sa @ref glfwWindowHintString
+ *  @sa @ref glfwDefaultWindowHints
+ *
+ *  @since Added in version 3.0.  Replaces `glfwOpenWindowHint`.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwWindowHint(int hint, int value);
+
+/*! @brief Sets the specified window hint to the desired value.
+ *
+ *  This function sets hints for the next call to @ref glfwCreateWindow.  The
+ *  hints, once set, retain their values until changed by a call to this
+ *  function or @ref glfwDefaultWindowHints, or until the library is terminated.
+ *
+ *  Only string type hints can be set with this function.  Integer value hints
+ *  are set with @ref glfwWindowHint.
+ *
+ *  This function does not check whether the specified hint values are valid.
+ *  If you set hints to invalid values this will instead be reported by the next
+ *  call to @ref glfwCreateWindow.
+ *
+ *  Some hints are platform specific.  These may be set on any platform but they
+ *  will only affect their specific platform.  Other platforms will ignore them.
+ *  Setting these hints requires no platform specific headers or functions.
+ *
+ *  @param[in] hint The [window hint](@ref window_hints) to set.
+ *  @param[in] value The new value of the window hint.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @pointer_lifetime The specified string is copied before this function
+ *  returns.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_hints
+ *  @sa @ref glfwWindowHint
+ *  @sa @ref glfwDefaultWindowHints
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwWindowHintString(int hint, const char* value);
+
+/*! @brief Creates a window and its associated context.
+ *
+ *  This function creates a window and its associated OpenGL or OpenGL ES
+ *  context.  Most of the options controlling how the window and its context
+ *  should be created are specified with [window hints](@ref window_hints).
+ *
+ *  Successful creation does not change which context is current.  Before you
+ *  can use the newly created context, you need to
+ *  [make it current](@ref context_current).  For information about the `share`
+ *  parameter, see @ref context_sharing.
+ *
+ *  The created window, framebuffer and context may differ from what you
+ *  requested, as not all parameters and hints are
+ *  [hard constraints](@ref window_hints_hard).  This includes the size of the
+ *  window, especially for full screen windows.  To query the actual attributes
+ *  of the created window, framebuffer and context, see @ref
+ *  glfwGetWindowAttrib, @ref glfwGetWindowSize and @ref glfwGetFramebufferSize.
+ *
+ *  To create a full screen window, you need to specify the monitor the window
+ *  will cover.  If no monitor is specified, the window will be windowed mode.
+ *  Unless you have a way for the user to choose a specific monitor, it is
+ *  recommended that you pick the primary monitor.  For more information on how
+ *  to query connected monitors, see @ref monitor_monitors.
+ *
+ *  For full screen windows, the specified size becomes the resolution of the
+ *  window's _desired video mode_.  As long as a full screen window is not
+ *  iconified, the supported video mode most closely matching the desired video
+ *  mode is set for the specified monitor.  For more information about full
+ *  screen windows, including the creation of so called _windowed full screen_
+ *  or _borderless full screen_ windows, see @ref window_windowed_full_screen.
+ *
+ *  Once you have created the window, you can switch it between windowed and
+ *  full screen mode with @ref glfwSetWindowMonitor.  This will not affect its
+ *  OpenGL or OpenGL ES context.
+ *
+ *  By default, newly created windows use the placement recommended by the
+ *  window system.  To create the window at a specific position, set the @ref
+ *  GLFW_POSITION_X and @ref GLFW_POSITION_Y window hints before creation.  To
+ *  restore the default behavior, set either or both hints back to
+ *  `GLFW_ANY_POSITION`.
+ *
+ *  As long as at least one full screen window is not iconified, the screensaver
+ *  is prohibited from starting.
+ *
+ *  Window systems put limits on window sizes.  Very large or very small window
+ *  dimensions may be overridden by the window system on creation.  Check the
+ *  actual [size](@ref window_size) after creation.
+ *
+ *  The [swap interval](@ref buffer_swap) is not set during window creation and
+ *  the initial value may vary depending on driver settings and defaults.
+ *
+ *  @param[in] width The desired width, in screen coordinates, of the window.
+ *  This must be greater than zero.
+ *  @param[in] height The desired height, in screen coordinates, of the window.
+ *  This must be greater than zero.
+ *  @param[in] title The initial, UTF-8 encoded window title.
+ *  @param[in] monitor The monitor to use for full screen mode, or `NULL` for
+ *  windowed mode.
+ *  @param[in] share The window whose context to share resources with, or `NULL`
+ *  to not share resources.
+ *  @return The handle of the created window, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM, @ref GLFW_INVALID_VALUE, @ref GLFW_API_UNAVAILABLE, @ref
+ *  GLFW_VERSION_UNAVAILABLE, @ref GLFW_FORMAT_UNAVAILABLE, @ref
+ *  GLFW_NO_WINDOW_CONTEXT and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @win32 Window creation will fail if the Microsoft GDI software
+ *  OpenGL implementation is the only one available.
+ *
+ *  @remark @win32 If the executable has an icon resource named `GLFW_ICON,` it
+ *  will be set as the initial icon for the window.  If no such icon is present,
+ *  the `IDI_APPLICATION` icon will be used instead.  To set a different icon,
+ *  see @ref glfwSetWindowIcon.
+ *
+ *  @remark @win32 The context to share resources with must not be current on
+ *  any other thread.
+ *
+ *  @remark @macos The OS only supports core profile contexts for OpenGL
+ *  versions 3.2 and later.  Before creating an OpenGL context of version 3.2 or
+ *  later you must set the [GLFW_OPENGL_PROFILE](@ref GLFW_OPENGL_PROFILE_hint)
+ *  hint accordingly.  OpenGL 3.0 and 3.1 contexts are not supported at all
+ *  on macOS.
+ *
+ *  @remark @macos The GLFW window has no icon, as it is not a document
+ *  window, but the dock icon will be the same as the application bundle's icon.
+ *  For more information on bundles, see the
+ *  [Bundle Programming Guide][bundle-guide] in the Mac Developer Library.
+ *
+ *  [bundle-guide]: https://developer.apple.com/library/mac/documentation/CoreFoundation/Conceptual/CFBundles/
+ *
+ *  @remark @macos The window frame will not be rendered at full resolution on
+ *  Retina displays unless the
+ *  [GLFW_SCALE_FRAMEBUFFER](@ref GLFW_SCALE_FRAMEBUFFER_hint)
+ *  hint is `GLFW_TRUE` and the `NSHighResolutionCapable` key is enabled in the
+ *  application bundle's `Info.plist`.  For more information, see
+ *  [High Resolution Guidelines for OS X][hidpi-guide] in the Mac Developer
+ *  Library.  The GLFW test and example programs use a custom `Info.plist`
+ *  template for this, which can be found as `CMake/Info.plist.in` in the source
+ *  tree.
+ *
+ *  [hidpi-guide]: https://developer.apple.com/library/mac/documentation/GraphicsAnimation/Conceptual/HighResolutionOSX/Explained/Explained.html
+ *
+ *  @remark @macos When activating frame autosaving with
+ *  [GLFW_COCOA_FRAME_NAME](@ref GLFW_COCOA_FRAME_NAME_hint), the specified
+ *  window size and position may be overridden by previously saved values.
+ *
+ *  @remark @wayland GLFW uses [libdecor][] where available to create its window
+ *  decorations.  This in turn uses server-side XDG decorations where available
+ *  and provides high quality client-side decorations on compositors like GNOME.
+ *  If both XDG decorations and libdecor are unavailable, GLFW falls back to
+ *  a very simple set of window decorations that only support moving, resizing
+ *  and the window manager's right-click menu.
+ *
+ *  [libdecor]: https://gitlab.freedesktop.org/libdecor/libdecor
+ *
+ *  @remark @x11 Some window managers will not respect the placement of
+ *  initially hidden windows.
+ *
+ *  @remark @x11 Due to the asynchronous nature of X11, it may take a moment for
+ *  a window to reach its requested state.  This means you may not be able to
+ *  query the final size, position or other attributes directly after window
+ *  creation.
+ *
+ *  @remark @x11 The class part of the `WM_CLASS` window property will by
+ *  default be set to the window title passed to this function.  The instance
+ *  part will use the contents of the `RESOURCE_NAME` environment variable, if
+ *  present and not empty, or fall back to the window title.  Set the
+ *  [GLFW_X11_CLASS_NAME](@ref GLFW_X11_CLASS_NAME_hint) and
+ *  [GLFW_X11_INSTANCE_NAME](@ref GLFW_X11_INSTANCE_NAME_hint) window hints to
+ *  override this.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_creation
+ *  @sa @ref glfwDestroyWindow
+ *
+ *  @since Added in version 3.0.  Replaces `glfwOpenWindow`.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindow* glfwCreateWindow(int width, int height, const char* title, GLFWmonitor* monitor, GLFWwindow* share);
+
+/*! @brief Destroys the specified window and its context.
+ *
+ *  This function destroys the specified window and its context.  On calling
+ *  this function, no further callbacks will be called for that window.
+ *
+ *  If the context of the specified window is current on the main thread, it is
+ *  detached before being destroyed.
+ *
+ *  @param[in] window The window to destroy.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @note The context of the specified window must not be current on any other
+ *  thread when this function is called.
+ *
+ *  @reentrancy This function must not be called from a callback.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_creation
+ *  @sa @ref glfwCreateWindow
+ *
+ *  @since Added in version 3.0.  Replaces `glfwCloseWindow`.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwDestroyWindow(GLFWwindow* window);
+
+/*! @brief Checks the close flag of the specified window.
+ *
+ *  This function returns the value of the close flag of the specified window.
+ *
+ *  @param[in] window The window to query.
+ *  @return The value of the close flag.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref window_close
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI int glfwWindowShouldClose(GLFWwindow* window);
+
+/*! @brief Sets the close flag of the specified window.
+ *
+ *  This function sets the value of the close flag of the specified window.
+ *  This can be used to override the user's attempt to close the window, or
+ *  to signal that it should be closed.
+ *
+ *  @param[in] window The window whose flag to change.
+ *  @param[in] value The new value.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref window_close
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowShouldClose(GLFWwindow* window, int value);
+
+/*! @brief Returns the title of the specified window.
+ *
+ *  This function returns the window title, encoded as UTF-8, of the specified
+ *  window.  This is the title set previously by @ref glfwCreateWindow
+ *  or @ref glfwSetWindowTitle.
+ *
+ *  @param[in] window The window to query.
+ *  @return The UTF-8 encoded window title, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @remark The returned title is currently a copy of the title last set by @ref
+ *  glfwCreateWindow or @ref glfwSetWindowTitle.  It does not include any
+ *  additional text which may be appended by the platform or another program.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the next call to @ref
+ *  glfwGetWindowTitle or @ref glfwSetWindowTitle, or until the library is
+ *  terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_title
+ *  @sa @ref glfwSetWindowTitle
+ *
+ *  @since Added in version 3.4.
+ *
+ *  @ingroup window
+ */
+GLFWAPI const char* glfwGetWindowTitle(GLFWwindow* window);
+
+/*! @brief Sets the title of the specified window.
+ *
+ *  This function sets the window title, encoded as UTF-8, of the specified
+ *  window.
+ *
+ *  @param[in] window The window whose title to change.
+ *  @param[in] title The UTF-8 encoded window title.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @macos The window title will not be updated until the next time you
+ *  process events.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_title
+ *  @sa @ref glfwGetWindowTitle
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowTitle(GLFWwindow* window, const char* title);
+
+/*! @brief Sets the icon for the specified window.
+ *
+ *  This function sets the icon of the specified window.  If passed an array of
+ *  candidate images, those of or closest to the sizes desired by the system are
+ *  selected.  If no images are specified, the window reverts to its default
+ *  icon.
+ *
+ *  The pixels are 32-bit, little-endian, non-premultiplied RGBA, i.e. eight
+ *  bits per channel with the red channel first.  They are arranged canonically
+ *  as packed sequential rows, starting from the top-left corner.
+ *
+ *  The desired image sizes varies depending on platform and system settings.
+ *  The selected images will be rescaled as needed.  Good sizes include 16x16,
+ *  32x32 and 48x48.
+ *
+ *  @param[in] window The window whose icon to set.
+ *  @param[in] count The number of images in the specified array, or zero to
+ *  revert to the default window icon.
+ *  @param[in] images The images to create the icon from.  This is ignored if
+ *  count is zero.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_VALUE, @ref GLFW_PLATFORM_ERROR and @ref
+ *  GLFW_FEATURE_UNAVAILABLE (see remarks).
+ *
+ *  @pointer_lifetime The specified image data is copied before this function
+ *  returns.
+ *
+ *  @remark @macos Regular windows do not have icons on macOS.  This function
+ *  will emit @ref GLFW_FEATURE_UNAVAILABLE.  The dock icon will be the same as
+ *  the application bundle's icon.  For more information on bundles, see the
+ *  [Bundle Programming Guide][bundle-guide] in the Mac Developer Library.
+ *
+ *  [bundle-guide]: https://developer.apple.com/library/mac/documentation/CoreFoundation/Conceptual/CFBundles/
+ *
+ *  @remark @wayland There is no existing protocol to change an icon, the
+ *  window will thus inherit the one defined in the application's desktop file.
+ *  This function will emit @ref GLFW_FEATURE_UNAVAILABLE.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_icon
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowIcon(GLFWwindow* window, int count, const GLFWimage* images);
+
+/*! @brief Retrieves the position of the content area of the specified window.
+ *
+ *  This function retrieves the position, in screen coordinates, of the
+ *  upper-left corner of the content area of the specified window.
+ *
+ *  Any or all of the position arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` position arguments will be set to zero.
+ *
+ *  @param[in] window The window to query.
+ *  @param[out] xpos Where to store the x-coordinate of the upper-left corner of
+ *  the content area, or `NULL`.
+ *  @param[out] ypos Where to store the y-coordinate of the upper-left corner of
+ *  the content area, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_PLATFORM_ERROR and @ref GLFW_FEATURE_UNAVAILABLE (see remarks).
+ *
+ *  @remark @wayland There is no way for an application to retrieve the global
+ *  position of its windows.  This function will emit @ref
+ *  GLFW_FEATURE_UNAVAILABLE.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_pos
+ *  @sa @ref glfwSetWindowPos
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwGetWindowPos(GLFWwindow* window, int* xpos, int* ypos);
+
+/*! @brief Sets the position of the content area of the specified window.
+ *
+ *  This function sets the position, in screen coordinates, of the upper-left
+ *  corner of the content area of the specified windowed mode window.  If the
+ *  window is a full screen window, this function does nothing.
+ *
+ *  __Do not use this function__ to move an already visible window unless you
+ *  have very good reasons for doing so, as it will confuse and annoy the user.
+ *
+ *  The window manager may put limits on what positions are allowed.  GLFW
+ *  cannot and should not override these limits.
+ *
+ *  @param[in] window The window to query.
+ *  @param[in] xpos The x-coordinate of the upper-left corner of the content area.
+ *  @param[in] ypos The y-coordinate of the upper-left corner of the content area.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_PLATFORM_ERROR and @ref GLFW_FEATURE_UNAVAILABLE (see remarks).
+ *
+ *  @remark @wayland There is no way for an application to set the global
+ *  position of its windows.  This function will emit @ref
+ *  GLFW_FEATURE_UNAVAILABLE.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_pos
+ *  @sa @ref glfwGetWindowPos
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowPos(GLFWwindow* window, int xpos, int ypos);
+
+/*! @brief Retrieves the size of the content area of the specified window.
+ *
+ *  This function retrieves the size, in screen coordinates, of the content area
+ *  of the specified window.  If you wish to retrieve the size of the
+ *  framebuffer of the window in pixels, see @ref glfwGetFramebufferSize.
+ *
+ *  Any or all of the size arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` size arguments will be set to zero.
+ *
+ *  @param[in] window The window whose size to retrieve.
+ *  @param[out] width Where to store the width, in screen coordinates, of the
+ *  content area, or `NULL`.
+ *  @param[out] height Where to store the height, in screen coordinates, of the
+ *  content area, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_size
+ *  @sa @ref glfwSetWindowSize
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwGetWindowSize(GLFWwindow* window, int* width, int* height);
+
+/*! @brief Sets the size limits of the specified window.
+ *
+ *  This function sets the size limits of the content area of the specified
+ *  window.  If the window is full screen, the size limits only take effect
+ *  once it is made windowed.  If the window is not resizable, this function
+ *  does nothing.
+ *
+ *  The size limits are applied immediately to a windowed mode window and may
+ *  cause it to be resized.
+ *
+ *  The maximum dimensions must be greater than or equal to the minimum
+ *  dimensions and all must be greater than or equal to zero.
+ *
+ *  @param[in] window The window to set limits for.
+ *  @param[in] minwidth The minimum width, in screen coordinates, of the content
+ *  area, or `GLFW_DONT_CARE`.
+ *  @param[in] minheight The minimum height, in screen coordinates, of the
+ *  content area, or `GLFW_DONT_CARE`.
+ *  @param[in] maxwidth The maximum width, in screen coordinates, of the content
+ *  area, or `GLFW_DONT_CARE`.
+ *  @param[in] maxheight The maximum height, in screen coordinates, of the
+ *  content area, or `GLFW_DONT_CARE`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_VALUE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark If you set size limits and an aspect ratio that conflict, the
+ *  results are undefined.
+ *
+ *  @remark @wayland The size limits will not be applied until the window is
+ *  actually resized, either by the user or by the compositor.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_sizelimits
+ *  @sa @ref glfwSetWindowAspectRatio
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowSizeLimits(GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
+
+/*! @brief Sets the aspect ratio of the specified window.
+ *
+ *  This function sets the required aspect ratio of the content area of the
+ *  specified window.  If the window is full screen, the aspect ratio only takes
+ *  effect once it is made windowed.  If the window is not resizable, this
+ *  function does nothing.
+ *
+ *  The aspect ratio is specified as a numerator and a denominator and both
+ *  values must be greater than zero.  For example, the common 16:9 aspect ratio
+ *  is specified as 16 and 9, respectively.
+ *
+ *  If the numerator and denominator is set to `GLFW_DONT_CARE` then the aspect
+ *  ratio limit is disabled.
+ *
+ *  The aspect ratio is applied immediately to a windowed mode window and may
+ *  cause it to be resized.
+ *
+ *  @param[in] window The window to set limits for.
+ *  @param[in] numer The numerator of the desired aspect ratio, or
+ *  `GLFW_DONT_CARE`.
+ *  @param[in] denom The denominator of the desired aspect ratio, or
+ *  `GLFW_DONT_CARE`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_VALUE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark If you set size limits and an aspect ratio that conflict, the
+ *  results are undefined.
+ *
+ *  @remark @wayland The aspect ratio will not be applied until the window is
+ *  actually resized, either by the user or by the compositor.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_sizelimits
+ *  @sa @ref glfwSetWindowSizeLimits
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowAspectRatio(GLFWwindow* window, int numer, int denom);
+
+/*! @brief Sets the size of the content area of the specified window.
+ *
+ *  This function sets the size, in screen coordinates, of the content area of
+ *  the specified window.
+ *
+ *  For full screen windows, this function updates the resolution of its desired
+ *  video mode and switches to the video mode closest to it, without affecting
+ *  the window's context.  As the context is unaffected, the bit depths of the
+ *  framebuffer remain unchanged.
+ *
+ *  If you wish to update the refresh rate of the desired video mode in addition
+ *  to its resolution, see @ref glfwSetWindowMonitor.
+ *
+ *  The window manager may put limits on what sizes are allowed.  GLFW cannot
+ *  and should not override these limits.
+ *
+ *  @param[in] window The window to resize.
+ *  @param[in] width The desired width, in screen coordinates, of the window
+ *  content area.
+ *  @param[in] height The desired height, in screen coordinates, of the window
+ *  content area.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_size
+ *  @sa @ref glfwGetWindowSize
+ *  @sa @ref glfwSetWindowMonitor
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowSize(GLFWwindow* window, int width, int height);
+
+/*! @brief Retrieves the size of the framebuffer of the specified window.
+ *
+ *  This function retrieves the size, in pixels, of the framebuffer of the
+ *  specified window.  If you wish to retrieve the size of the window in screen
+ *  coordinates, see @ref glfwGetWindowSize.
+ *
+ *  Any or all of the size arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` size arguments will be set to zero.
+ *
+ *  @param[in] window The window whose framebuffer to query.
+ *  @param[out] width Where to store the width, in pixels, of the framebuffer,
+ *  or `NULL`.
+ *  @param[out] height Where to store the height, in pixels, of the framebuffer,
+ *  or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_fbsize
+ *  @sa @ref glfwSetFramebufferSizeCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwGetFramebufferSize(GLFWwindow* window, int* width, int* height);
+
+/*! @brief Retrieves the size of the frame of the window.
+ *
+ *  This function retrieves the size, in screen coordinates, of each edge of the
+ *  frame of the specified window.  This size includes the title bar, if the
+ *  window has one.  The size of the frame may vary depending on the
+ *  [window-related hints](@ref window_hints_wnd) used to create it.
+ *
+ *  Because this function retrieves the size of each window frame edge and not
+ *  the offset along a particular coordinate axis, the retrieved values will
+ *  always be zero or positive.
+ *
+ *  Any or all of the size arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` size arguments will be set to zero.
+ *
+ *  @param[in] window The window whose frame size to query.
+ *  @param[out] left Where to store the size, in screen coordinates, of the left
+ *  edge of the window frame, or `NULL`.
+ *  @param[out] top Where to store the size, in screen coordinates, of the top
+ *  edge of the window frame, or `NULL`.
+ *  @param[out] right Where to store the size, in screen coordinates, of the
+ *  right edge of the window frame, or `NULL`.
+ *  @param[out] bottom Where to store the size, in screen coordinates, of the
+ *  bottom edge of the window frame, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_size
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwGetWindowFrameSize(GLFWwindow* window, int* left, int* top, int* right, int* bottom);
+
+/*! @brief Retrieves the content scale for the specified window.
+ *
+ *  This function retrieves the content scale for the specified window.  The
+ *  content scale is the ratio between the current DPI and the platform's
+ *  default DPI.  This is especially important for text and any UI elements.  If
+ *  the pixel dimensions of your UI scaled by this look appropriate on your
+ *  machine then it should appear at a reasonable size on other machines
+ *  regardless of their DPI and scaling settings.  This relies on the system DPI
+ *  and scaling settings being somewhat correct.
+ *
+ *  On platforms where each monitors can have its own content scale, the window
+ *  content scale will depend on which monitor the system considers the window
+ *  to be on.
+ *
+ *  @param[in] window The window to query.
+ *  @param[out] xscale Where to store the x-axis content scale, or `NULL`.
+ *  @param[out] yscale Where to store the y-axis content scale, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_scale
+ *  @sa @ref glfwSetWindowContentScaleCallback
+ *  @sa @ref glfwGetMonitorContentScale
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwGetWindowContentScale(GLFWwindow* window, float* xscale, float* yscale);
+
+/*! @brief Returns the opacity of the whole window.
+ *
+ *  This function returns the opacity of the window, including any decorations.
+ *
+ *  The opacity (or alpha) value is a positive finite number between zero and
+ *  one, where zero is fully transparent and one is fully opaque.  If the system
+ *  does not support whole window transparency, this function always returns one.
+ *
+ *  The initial opacity value for newly created windows is one.
+ *
+ *  @param[in] window The window to query.
+ *  @return The opacity value of the specified window.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_transparency
+ *  @sa @ref glfwSetWindowOpacity
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI float glfwGetWindowOpacity(GLFWwindow* window);
+
+/*! @brief Sets the opacity of the whole window.
+ *
+ *  This function sets the opacity of the window, including any decorations.
+ *
+ *  The opacity (or alpha) value is a positive finite number between zero and
+ *  one, where zero is fully transparent and one is fully opaque.
+ *
+ *  The initial opacity value for newly created windows is one.
+ *
+ *  A window created with framebuffer transparency may not use whole window
+ *  transparency.  The results of doing this are undefined.
+ *
+ *  @param[in] window The window to set the opacity for.
+ *  @param[in] opacity The desired opacity of the specified window.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_PLATFORM_ERROR and @ref GLFW_FEATURE_UNAVAILABLE (see remarks).
+ *
+ *  @remark @wayland There is no way to set an opacity factor for a window.
+ *  This function will emit @ref GLFW_FEATURE_UNAVAILABLE.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_transparency
+ *  @sa @ref glfwGetWindowOpacity
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowOpacity(GLFWwindow* window, float opacity);
+
+/*! @brief Iconifies the specified window.
+ *
+ *  This function iconifies (minimizes) the specified window if it was
+ *  previously restored.  If the window is already iconified, this function does
+ *  nothing.
+ *
+ *  If the specified window is a full screen window, GLFW restores the original
+ *  video mode of the monitor.  The window's desired video mode is set again
+ *  when the window is restored.
+ *
+ *  @param[in] window The window to iconify.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @wayland Once a window is iconified, @ref glfwRestoreWindow won’t
+ *  be able to restore it.  This is a design decision of the xdg-shell
+ *  protocol.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_iconify
+ *  @sa @ref glfwRestoreWindow
+ *  @sa @ref glfwMaximizeWindow
+ *
+ *  @since Added in version 2.1.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwIconifyWindow(GLFWwindow* window);
+
+/*! @brief Restores the specified window.
+ *
+ *  This function restores the specified window if it was previously iconified
+ *  (minimized) or maximized.  If the window is already restored, this function
+ *  does nothing.
+ *
+ *  If the specified window is an iconified full screen window, its desired
+ *  video mode is set again for its monitor when the window is restored.
+ *
+ *  @param[in] window The window to restore.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_iconify
+ *  @sa @ref glfwIconifyWindow
+ *  @sa @ref glfwMaximizeWindow
+ *
+ *  @since Added in version 2.1.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwRestoreWindow(GLFWwindow* window);
+
+/*! @brief Maximizes the specified window.
+ *
+ *  This function maximizes the specified window if it was previously not
+ *  maximized.  If the window is already maximized, this function does nothing.
+ *
+ *  If the specified window is a full screen window, this function does nothing.
+ *
+ *  @param[in] window The window to maximize.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @par Thread Safety
+ *  This function may only be called from the main thread.
+ *
+ *  @sa @ref window_iconify
+ *  @sa @ref glfwIconifyWindow
+ *  @sa @ref glfwRestoreWindow
+ *
+ *  @since Added in GLFW 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwMaximizeWindow(GLFWwindow* window);
+
+/*! @brief Makes the specified window visible.
+ *
+ *  This function makes the specified window visible if it was previously
+ *  hidden.  If the window is already visible or is in full screen mode, this
+ *  function does nothing.
+ *
+ *  By default, windowed mode windows are focused when shown
+ *  Set the [GLFW_FOCUS_ON_SHOW](@ref GLFW_FOCUS_ON_SHOW_hint) window hint
+ *  to change this behavior for all newly created windows, or change the
+ *  behavior for an existing window with @ref glfwSetWindowAttrib.
+ *
+ *  @param[in] window The window to make visible.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @wayland Because Wayland wants every frame of the desktop to be
+ *  complete, this function does not immediately make the window visible.
+ *  Instead it will become visible the next time the window framebuffer is
+ *  updated after this call.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_hide
+ *  @sa @ref glfwHideWindow
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwShowWindow(GLFWwindow* window);
+
+/*! @brief Hides the specified window.
+ *
+ *  This function hides the specified window if it was previously visible.  If
+ *  the window is already hidden or is in full screen mode, this function does
+ *  nothing.
+ *
+ *  @param[in] window The window to hide.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_hide
+ *  @sa @ref glfwShowWindow
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwHideWindow(GLFWwindow* window);
+
+/*! @brief Brings the specified window to front and sets input focus.
+ *
+ *  This function brings the specified window to front and sets input focus.
+ *  The window should already be visible and not iconified.
+ *
+ *  By default, both windowed and full screen mode windows are focused when
+ *  initially created.  Set the [GLFW_FOCUSED](@ref GLFW_FOCUSED_hint) to
+ *  disable this behavior.
+ *
+ *  Also by default, windowed mode windows are focused when shown
+ *  with @ref glfwShowWindow. Set the
+ *  [GLFW_FOCUS_ON_SHOW](@ref GLFW_FOCUS_ON_SHOW_hint) to disable this behavior.
+ *
+ *  __Do not use this function__ to steal focus from other applications unless
+ *  you are certain that is what the user wants.  Focus stealing can be
+ *  extremely disruptive.
+ *
+ *  For a less disruptive way of getting the user's attention, see
+ *  [attention requests](@ref window_attention).
+ *
+ *  @param[in] window The window to give input focus.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @wayland The compositor will likely ignore focus requests unless
+ *  another window created by the same application already has input focus.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_focus
+ *  @sa @ref window_attention
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwFocusWindow(GLFWwindow* window);
+
+/*! @brief Requests user attention to the specified window.
+ *
+ *  This function requests user attention to the specified window.  On
+ *  platforms where this is not supported, attention is requested to the
+ *  application as a whole.
+ *
+ *  Once the user has given attention, usually by focusing the window or
+ *  application, the system will end the request automatically.
+ *
+ *  @param[in] window The window to request attention to.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @macos Attention is requested to the application as a whole, not the
+ *  specific window.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_attention
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwRequestWindowAttention(GLFWwindow* window);
+
+/*! @brief Returns the monitor that the window uses for full screen mode.
+ *
+ *  This function returns the handle of the monitor that the specified window is
+ *  in full screen on.
+ *
+ *  @param[in] window The window to query.
+ *  @return The monitor, or `NULL` if the window is in windowed mode or an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_monitor
+ *  @sa @ref glfwSetWindowMonitor
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWmonitor* glfwGetWindowMonitor(GLFWwindow* window);
+
+/*! @brief Sets the mode, monitor, video mode and placement of a window.
+ *
+ *  This function sets the monitor that the window uses for full screen mode or,
+ *  if the monitor is `NULL`, makes it windowed mode.
+ *
+ *  When setting a monitor, this function updates the width, height and refresh
+ *  rate of the desired video mode and switches to the video mode closest to it.
+ *  The window position is ignored when setting a monitor.
+ *
+ *  When the monitor is `NULL`, the position, width and height are used to
+ *  place the window content area.  The refresh rate is ignored when no monitor
+ *  is specified.
+ *
+ *  If you only wish to update the resolution of a full screen window or the
+ *  size of a windowed mode window, see @ref glfwSetWindowSize.
+ *
+ *  When a window transitions from full screen to windowed mode, this function
+ *  restores any previous window settings such as whether it is decorated,
+ *  floating, resizable, has size or aspect ratio limits, etc.
+ *
+ *  @param[in] window The window whose monitor, size or video mode to set.
+ *  @param[in] monitor The desired monitor, or `NULL` to set windowed mode.
+ *  @param[in] xpos The desired x-coordinate of the upper-left corner of the
+ *  content area.
+ *  @param[in] ypos The desired y-coordinate of the upper-left corner of the
+ *  content area.
+ *  @param[in] width The desired with, in screen coordinates, of the content
+ *  area or video mode.
+ *  @param[in] height The desired height, in screen coordinates, of the content
+ *  area or video mode.
+ *  @param[in] refreshRate The desired refresh rate, in Hz, of the video mode,
+ *  or `GLFW_DONT_CARE`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark The OpenGL or OpenGL ES context will not be destroyed or otherwise
+ *  affected by any resizing or mode switching, although you may need to update
+ *  your viewport if the framebuffer size has changed.
+ *
+ *  @remark @wayland The desired window position is ignored, as there is no way
+ *  for an application to set this property.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_monitor
+ *  @sa @ref window_full_screen
+ *  @sa @ref glfwGetWindowMonitor
+ *  @sa @ref glfwSetWindowSize
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowMonitor(GLFWwindow* window, GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
+
+/*! @brief Returns an attribute of the specified window.
+ *
+ *  This function returns the value of an attribute of the specified window or
+ *  its OpenGL or OpenGL ES context.
+ *
+ *  @param[in] window The window to query.
+ *  @param[in] attrib The [window attribute](@ref window_attribs) whose value to
+ *  return.
+ *  @return The value of the attribute, or zero if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark Framebuffer related hints are not window attributes.  See @ref
+ *  window_attribs_fb for more information.
+ *
+ *  @remark Zero is a valid value for many window and context related
+ *  attributes so you cannot use a return value of zero as an indication of
+ *  errors.  However, this function should not fail as long as it is passed
+ *  valid arguments and the library has been [initialized](@ref intro_init).
+ *
+ *  @remark @wayland The Wayland protocol provides no way to check whether a
+ *  window is iconfied, so @ref GLFW_ICONIFIED always returns `GLFW_FALSE`.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_attribs
+ *  @sa @ref glfwSetWindowAttrib
+ *
+ *  @since Added in version 3.0.  Replaces `glfwGetWindowParam` and
+ *  `glfwGetGLVersion`.
+ *
+ *  @ingroup window
+ */
+GLFWAPI int glfwGetWindowAttrib(GLFWwindow* window, int attrib);
+
+/*! @brief Sets an attribute of the specified window.
+ *
+ *  This function sets the value of an attribute of the specified window.
+ *
+ *  The supported attributes are [GLFW_DECORATED](@ref GLFW_DECORATED_attrib),
+ *  [GLFW_RESIZABLE](@ref GLFW_RESIZABLE_attrib),
+ *  [GLFW_FLOATING](@ref GLFW_FLOATING_attrib),
+ *  [GLFW_AUTO_ICONIFY](@ref GLFW_AUTO_ICONIFY_attrib) and
+ *  [GLFW_FOCUS_ON_SHOW](@ref GLFW_FOCUS_ON_SHOW_attrib).
+ *  [GLFW_MOUSE_PASSTHROUGH](@ref GLFW_MOUSE_PASSTHROUGH_attrib)
+ *
+ *  Some of these attributes are ignored for full screen windows.  The new
+ *  value will take effect if the window is later made windowed.
+ *
+ *  Some of these attributes are ignored for windowed mode windows.  The new
+ *  value will take effect if the window is later made full screen.
+ *
+ *  @param[in] window The window to set the attribute for.
+ *  @param[in] attrib A supported window attribute.
+ *  @param[in] value `GLFW_TRUE` or `GLFW_FALSE`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM, @ref GLFW_INVALID_VALUE, @ref GLFW_PLATFORM_ERROR and @ref
+ *  GLFW_FEATURE_UNAVAILABLE (see remarks).
+ *
+ *  @remark Calling @ref glfwGetWindowAttrib will always return the latest
+ *  value, even if that value is ignored by the current mode of the window.
+ *
+ *  @remark @wayland The [GLFW_FLOATING](@ref GLFW_FLOATING_attrib) window attribute is
+ *  not supported.  Setting this will emit @ref GLFW_FEATURE_UNAVAILABLE.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_attribs
+ *  @sa @ref glfwGetWindowAttrib
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowAttrib(GLFWwindow* window, int attrib, int value);
+
+/*! @brief Sets the user pointer of the specified window.
+ *
+ *  This function sets the user-defined pointer of the specified window.  The
+ *  current value is retained until the window is destroyed.  The initial value
+ *  is `NULL`.
+ *
+ *  @param[in] window The window whose pointer to set.
+ *  @param[in] pointer The new value.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref window_userptr
+ *  @sa @ref glfwGetWindowUserPointer
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowUserPointer(GLFWwindow* window, void* pointer);
+
+/*! @brief Returns the user pointer of the specified window.
+ *
+ *  This function returns the current value of the user-defined pointer of the
+ *  specified window.  The initial value is `NULL`.
+ *
+ *  @param[in] window The window whose pointer to return.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref window_userptr
+ *  @sa @ref glfwSetWindowUserPointer
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void* glfwGetWindowUserPointer(GLFWwindow* window);
+
+/*! @brief Sets the position callback for the specified window.
+ *
+ *  This function sets the position callback of the specified window, which is
+ *  called when the window is moved.  The callback is provided with the
+ *  position, in screen coordinates, of the upper-left corner of the content
+ *  area of the window.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int xpos, int ypos)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowposfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @remark @wayland This callback will never be called, as there is no way for
+ *  an application to know its global position.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_pos
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowposfun glfwSetWindowPosCallback(GLFWwindow* window, GLFWwindowposfun callback);
+
+/*! @brief Sets the size callback for the specified window.
+ *
+ *  This function sets the size callback of the specified window, which is
+ *  called when the window is resized.  The callback is provided with the size,
+ *  in screen coordinates, of the content area of the window.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int width, int height)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowsizefun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_size
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter and return value.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowsizefun glfwSetWindowSizeCallback(GLFWwindow* window, GLFWwindowsizefun callback);
+
+/*! @brief Sets the close callback for the specified window.
+ *
+ *  This function sets the close callback of the specified window, which is
+ *  called when the user attempts to close the window, for example by clicking
+ *  the close widget in the title bar.
+ *
+ *  The close flag is set before this callback is called, but you can modify it
+ *  at any time with @ref glfwSetWindowShouldClose.
+ *
+ *  The close callback is not triggered by @ref glfwDestroyWindow.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowclosefun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @remark @macos Selecting Quit from the application menu will trigger the
+ *  close callback for all windows.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_close
+ *
+ *  @since Added in version 2.5.
+ *  @glfw3 Added window handle parameter and return value.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowclosefun glfwSetWindowCloseCallback(GLFWwindow* window, GLFWwindowclosefun callback);
+
+/*! @brief Sets the refresh callback for the specified window.
+ *
+ *  This function sets the refresh callback of the specified window, which is
+ *  called when the content area of the window needs to be redrawn, for example
+ *  if the window has been exposed after having been covered by another window.
+ *
+ *  On compositing window systems such as Aero, Compiz, Aqua or Wayland, where
+ *  the window contents are saved off-screen, this callback may be called only
+ *  very infrequently or never at all.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window);
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowrefreshfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_refresh
+ *
+ *  @since Added in version 2.5.
+ *  @glfw3 Added window handle parameter and return value.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowrefreshfun glfwSetWindowRefreshCallback(GLFWwindow* window, GLFWwindowrefreshfun callback);
+
+/*! @brief Sets the focus callback for the specified window.
+ *
+ *  This function sets the focus callback of the specified window, which is
+ *  called when the window gains or loses input focus.
+ *
+ *  After the focus callback is called for a window that lost input focus,
+ *  synthetic key and mouse button release events will be generated for all such
+ *  that had been pressed.  For more information, see @ref glfwSetKeyCallback
+ *  and @ref glfwSetMouseButtonCallback.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int focused)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowfocusfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_focus
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowfocusfun glfwSetWindowFocusCallback(GLFWwindow* window, GLFWwindowfocusfun callback);
+
+/*! @brief Sets the iconify callback for the specified window.
+ *
+ *  This function sets the iconification callback of the specified window, which
+ *  is called when the window is iconified or restored.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int iconified)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowiconifyfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_iconify
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowiconifyfun glfwSetWindowIconifyCallback(GLFWwindow* window, GLFWwindowiconifyfun callback);
+
+/*! @brief Sets the maximize callback for the specified window.
+ *
+ *  This function sets the maximization callback of the specified window, which
+ *  is called when the window is maximized or restored.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int maximized)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowmaximizefun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_maximize
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowmaximizefun glfwSetWindowMaximizeCallback(GLFWwindow* window, GLFWwindowmaximizefun callback);
+
+/*! @brief Sets the framebuffer resize callback for the specified window.
+ *
+ *  This function sets the framebuffer resize callback of the specified window,
+ *  which is called when the framebuffer of the specified window is resized.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int width, int height)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWframebuffersizefun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_fbsize
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWframebuffersizefun glfwSetFramebufferSizeCallback(GLFWwindow* window, GLFWframebuffersizefun callback);
+
+/*! @brief Sets the window content scale callback for the specified window.
+ *
+ *  This function sets the window content scale callback of the specified window,
+ *  which is called when the content scale of the specified window changes.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, float xscale, float yscale)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowcontentscalefun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_scale
+ *  @sa @ref glfwGetWindowContentScale
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowcontentscalefun glfwSetWindowContentScaleCallback(GLFWwindow* window, GLFWwindowcontentscalefun callback);
+
+/*! @brief Processes all pending events.
+ *
+ *  This function processes only those events that are already in the event
+ *  queue and then returns immediately.  Processing events will cause the window
+ *  and input callbacks associated with those events to be called.
+ *
+ *  On some platforms, a window move, resize or menu operation will cause event
+ *  processing to block.  This is due to how event processing is designed on
+ *  those platforms.  You can use the
+ *  [window refresh callback](@ref window_refresh) to redraw the contents of
+ *  your window when necessary during such operations.
+ *
+ *  Do not assume that callbacks you set will _only_ be called in response to
+ *  event processing functions like this one.  While it is necessary to poll for
+ *  events, window systems that require GLFW to register callbacks of its own
+ *  can pass events to GLFW in response to many window system function calls.
+ *  GLFW will pass those events on to the application callbacks before
+ *  returning.
+ *
+ *  Event processing is not required for joystick input to work.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @reentrancy This function must not be called from a callback.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref events
+ *  @sa @ref glfwWaitEvents
+ *  @sa @ref glfwWaitEventsTimeout
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwPollEvents(void);
+
+/*! @brief Waits until events are queued and processes them.
+ *
+ *  This function puts the calling thread to sleep until at least one event is
+ *  available in the event queue.  Once one or more events are available,
+ *  it behaves exactly like @ref glfwPollEvents, i.e. the events in the queue
+ *  are processed and the function then returns immediately.  Processing events
+ *  will cause the window and input callbacks associated with those events to be
+ *  called.
+ *
+ *  Since not all events are associated with callbacks, this function may return
+ *  without a callback having been called even if you are monitoring all
+ *  callbacks.
+ *
+ *  On some platforms, a window move, resize or menu operation will cause event
+ *  processing to block.  This is due to how event processing is designed on
+ *  those platforms.  You can use the
+ *  [window refresh callback](@ref window_refresh) to redraw the contents of
+ *  your window when necessary during such operations.
+ *
+ *  Do not assume that callbacks you set will _only_ be called in response to
+ *  event processing functions like this one.  While it is necessary to poll for
+ *  events, window systems that require GLFW to register callbacks of its own
+ *  can pass events to GLFW in response to many window system function calls.
+ *  GLFW will pass those events on to the application callbacks before
+ *  returning.
+ *
+ *  Event processing is not required for joystick input to work.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @reentrancy This function must not be called from a callback.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref events
+ *  @sa @ref glfwPollEvents
+ *  @sa @ref glfwWaitEventsTimeout
+ *
+ *  @since Added in version 2.5.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwWaitEvents(void);
+
+/*! @brief Waits with timeout until events are queued and processes them.
+ *
+ *  This function puts the calling thread to sleep until at least one event is
+ *  available in the event queue, or until the specified timeout is reached.  If
+ *  one or more events are available, it behaves exactly like @ref
+ *  glfwPollEvents, i.e. the events in the queue are processed and the function
+ *  then returns immediately.  Processing events will cause the window and input
+ *  callbacks associated with those events to be called.
+ *
+ *  The timeout value must be a positive finite number.
+ *
+ *  Since not all events are associated with callbacks, this function may return
+ *  without a callback having been called even if you are monitoring all
+ *  callbacks.
+ *
+ *  On some platforms, a window move, resize or menu operation will cause event
+ *  processing to block.  This is due to how event processing is designed on
+ *  those platforms.  You can use the
+ *  [window refresh callback](@ref window_refresh) to redraw the contents of
+ *  your window when necessary during such operations.
+ *
+ *  Do not assume that callbacks you set will _only_ be called in response to
+ *  event processing functions like this one.  While it is necessary to poll for
+ *  events, window systems that require GLFW to register callbacks of its own
+ *  can pass events to GLFW in response to many window system function calls.
+ *  GLFW will pass those events on to the application callbacks before
+ *  returning.
+ *
+ *  Event processing is not required for joystick input to work.
+ *
+ *  @param[in] timeout The maximum amount of time, in seconds, to wait.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_VALUE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @reentrancy This function must not be called from a callback.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref events
+ *  @sa @ref glfwPollEvents
+ *  @sa @ref glfwWaitEvents
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwWaitEventsTimeout(double timeout);
+
+/*! @brief Posts an empty event to the event queue.
+ *
+ *  This function posts an empty event from the current thread to the event
+ *  queue, causing @ref glfwWaitEvents or @ref glfwWaitEventsTimeout to return.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref events
+ *  @sa @ref glfwWaitEvents
+ *  @sa @ref glfwWaitEventsTimeout
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwPostEmptyEvent(void);
+
+/*! @brief Returns the value of an input option for the specified window.
+ *
+ *  This function returns the value of an input option for the specified window.
+ *  The mode must be one of @ref GLFW_CURSOR, @ref GLFW_STICKY_KEYS,
+ *  @ref GLFW_STICKY_MOUSE_BUTTONS, @ref GLFW_LOCK_KEY_MODS or
+ *  @ref GLFW_RAW_MOUSE_MOTION.
+ *
+ *  @param[in] window The window to query.
+ *  @param[in] mode One of `GLFW_CURSOR`, `GLFW_STICKY_KEYS`,
+ *  `GLFW_STICKY_MOUSE_BUTTONS`, `GLFW_LOCK_KEY_MODS` or
+ *  `GLFW_RAW_MOUSE_MOTION`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref glfwSetInputMode
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwGetInputMode(GLFWwindow* window, int mode);
+
+/*! @brief Sets an input option for the specified window.
+ *
+ *  This function sets an input mode option for the specified window.  The mode
+ *  must be one of @ref GLFW_CURSOR, @ref GLFW_STICKY_KEYS,
+ *  @ref GLFW_STICKY_MOUSE_BUTTONS, @ref GLFW_LOCK_KEY_MODS
+ *  @ref GLFW_RAW_MOUSE_MOTION, or @ref GLFW_UNLIMITED_MOUSE_BUTTONS.
+ *
+ *  If the mode is `GLFW_CURSOR`, the value must be one of the following cursor
+ *  modes:
+ *  - `GLFW_CURSOR_NORMAL` makes the cursor visible and behaving normally.
+ *  - `GLFW_CURSOR_HIDDEN` makes the cursor invisible when it is over the
+ *    content area of the window but does not restrict the cursor from leaving.
+ *  - `GLFW_CURSOR_DISABLED` hides and grabs the cursor, providing virtual
+ *    and unlimited cursor movement.  This is useful for implementing for
+ *    example 3D camera controls.
+ *  - `GLFW_CURSOR_CAPTURED` makes the cursor visible and confines it to the
+ *    content area of the window.
+ *
+ *  If the mode is `GLFW_STICKY_KEYS`, the value must be either `GLFW_TRUE` to
+ *  enable sticky keys, or `GLFW_FALSE` to disable it.  If sticky keys are
+ *  enabled, a key press will ensure that @ref glfwGetKey returns `GLFW_PRESS`
+ *  the next time it is called even if the key had been released before the
+ *  call.  This is useful when you are only interested in whether keys have been
+ *  pressed but not when or in which order.
+ *
+ *  If the mode is `GLFW_STICKY_MOUSE_BUTTONS`, the value must be either
+ *  `GLFW_TRUE` to enable sticky mouse buttons, or `GLFW_FALSE` to disable it.
+ *  If sticky mouse buttons are enabled, a mouse button press will ensure that
+ *  @ref glfwGetMouseButton returns `GLFW_PRESS` the next time it is called even
+ *  if the mouse button had been released before the call.  This is useful when
+ *  you are only interested in whether mouse buttons have been pressed but not
+ *  when or in which order.
+ *
+ *  If the mode is `GLFW_LOCK_KEY_MODS`, the value must be either `GLFW_TRUE` to
+ *  enable lock key modifier bits, or `GLFW_FALSE` to disable them.  If enabled,
+ *  callbacks that receive modifier bits will also have the @ref
+ *  GLFW_MOD_CAPS_LOCK bit set when the event was generated with Caps Lock on,
+ *  and the @ref GLFW_MOD_NUM_LOCK bit when Num Lock was on.
+ *
+ *  If the mode is `GLFW_RAW_MOUSE_MOTION`, the value must be either `GLFW_TRUE`
+ *  to enable raw (unscaled and unaccelerated) mouse motion when the cursor is
+ *  disabled, or `GLFW_FALSE` to disable it.  If raw motion is not supported,
+ *  attempting to set this will emit @ref GLFW_FEATURE_UNAVAILABLE.  Call @ref
+ *  glfwRawMouseMotionSupported to check for support.
+ *
+ *  If the mode is `GLFW_UNLIMITED_MOUSE_BUTTONS`, the value must be either
+ *  `GLFW_TRUE` to disable the mouse button limit when calling the mouse button
+ *  callback, or `GLFW_FALSE` to limit the mouse buttons sent to the callback
+ *  to the mouse button token values up to `GLFW_MOUSE_BUTTON_LAST`.
+ *
+ *  @param[in] window The window whose input mode to set.
+ *  @param[in] mode One of `GLFW_CURSOR`, `GLFW_STICKY_KEYS`,
+ *  `GLFW_STICKY_MOUSE_BUTTONS`, `GLFW_LOCK_KEY_MODS` or
+ *  `GLFW_RAW_MOUSE_MOTION`.
+ *  @param[in] value The new value of the specified input mode.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM, @ref GLFW_PLATFORM_ERROR and @ref
+ *  GLFW_FEATURE_UNAVAILABLE (see above).
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref glfwGetInputMode
+ *
+ *  @since Added in version 3.0.  Replaces `glfwEnable` and `glfwDisable`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwSetInputMode(GLFWwindow* window, int mode, int value);
+
+/*! @brief Returns whether raw mouse motion is supported.
+ *
+ *  This function returns whether raw mouse motion is supported on the current
+ *  system.  This status does not change after GLFW has been initialized so you
+ *  only need to check this once.  If you attempt to enable raw motion on
+ *  a system that does not support it, @ref GLFW_PLATFORM_ERROR will be emitted.
+ *
+ *  Raw mouse motion is closer to the actual motion of the mouse across
+ *  a surface.  It is not affected by the scaling and acceleration applied to
+ *  the motion of the desktop cursor.  That processing is suitable for a cursor
+ *  while raw motion is better for controlling for example a 3D camera.  Because
+ *  of this, raw mouse motion is only provided when the cursor is disabled.
+ *
+ *  @return `GLFW_TRUE` if raw mouse motion is supported on the current machine,
+ *  or `GLFW_FALSE` otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref raw_mouse_motion
+ *  @sa @ref glfwSetInputMode
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwRawMouseMotionSupported(void);
+
+/*! @brief Returns the layout-specific name of the specified printable key.
+ *
+ *  This function returns the name of the specified printable key, encoded as
+ *  UTF-8.  This is typically the character that key would produce without any
+ *  modifier keys, intended for displaying key bindings to the user.  For dead
+ *  keys, it is typically the diacritic it would add to a character.
+ *
+ *  __Do not use this function__ for [text input](@ref input_char).  You will
+ *  break text input for many languages even if it happens to work for yours.
+ *
+ *  If the key is `GLFW_KEY_UNKNOWN`, the scancode is used to identify the key,
+ *  otherwise the scancode is ignored.  If you specify a non-printable key, or
+ *  `GLFW_KEY_UNKNOWN` and a scancode that maps to a non-printable key, this
+ *  function returns `NULL` but does not emit an error.
+ *
+ *  This behavior allows you to always pass in the arguments in the
+ *  [key callback](@ref input_key) without modification.
+ *
+ *  The printable keys are:
+ *  - `GLFW_KEY_APOSTROPHE`
+ *  - `GLFW_KEY_COMMA`
+ *  - `GLFW_KEY_MINUS`
+ *  - `GLFW_KEY_PERIOD`
+ *  - `GLFW_KEY_SLASH`
+ *  - `GLFW_KEY_SEMICOLON`
+ *  - `GLFW_KEY_EQUAL`
+ *  - `GLFW_KEY_LEFT_BRACKET`
+ *  - `GLFW_KEY_RIGHT_BRACKET`
+ *  - `GLFW_KEY_BACKSLASH`
+ *  - `GLFW_KEY_WORLD_1`
+ *  - `GLFW_KEY_WORLD_2`
+ *  - `GLFW_KEY_0` to `GLFW_KEY_9`
+ *  - `GLFW_KEY_A` to `GLFW_KEY_Z`
+ *  - `GLFW_KEY_KP_0` to `GLFW_KEY_KP_9`
+ *  - `GLFW_KEY_KP_DECIMAL`
+ *  - `GLFW_KEY_KP_DIVIDE`
+ *  - `GLFW_KEY_KP_MULTIPLY`
+ *  - `GLFW_KEY_KP_SUBTRACT`
+ *  - `GLFW_KEY_KP_ADD`
+ *  - `GLFW_KEY_KP_EQUAL`
+ *
+ *  Names for printable keys depend on keyboard layout, while names for
+ *  non-printable keys are the same across layouts but depend on the application
+ *  language and should be localized along with other user interface text.
+ *
+ *  @param[in] key The key to query, or `GLFW_KEY_UNKNOWN`.
+ *  @param[in] scancode The scancode of the key to query.
+ *  @return The UTF-8 encoded, layout-specific name of the key, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_VALUE, @ref GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark The contents of the returned string may change when a keyboard
+ *  layout change event is received.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_key_name
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const char* glfwGetKeyName(int key, int scancode);
+
+/*! @brief Returns the platform-specific scancode of the specified key.
+ *
+ *  This function returns the platform-specific scancode of the specified key.
+ *
+ *  If the specified [key token](@ref keys) corresponds to a physical key not
+ *  supported on the current platform then this method will return `-1`.
+ *  Calling this function with anything other than a key token will return `-1`
+ *  and generate a @ref GLFW_INVALID_ENUM error.
+ *
+ *  @param[in] key Any [key token](@ref keys).
+ *  @return The platform-specific scancode for the key, or `-1` if the key is
+ *  not supported on the current platform or an [error](@ref error_handling)
+ *  occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref input_key
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwGetKeyScancode(int key);
+
+/*! @brief Returns the last reported state of a keyboard key for the specified
+ *  window.
+ *
+ *  This function returns the last state reported for the specified key to the
+ *  specified window.  The returned state is one of `GLFW_PRESS` or
+ *  `GLFW_RELEASE`.  The action `GLFW_REPEAT` is only reported to the key callback.
+ *
+ *  If the @ref GLFW_STICKY_KEYS input mode is enabled, this function returns
+ *  `GLFW_PRESS` the first time you call it for a key that was pressed, even if
+ *  that key has already been released.
+ *
+ *  The key functions deal with physical keys, with [key tokens](@ref keys)
+ *  named after their use on the standard US keyboard layout.  If you want to
+ *  input text, use the Unicode character callback instead.
+ *
+ *  The [modifier key bit masks](@ref mods) are not key tokens and cannot be
+ *  used with this function.
+ *
+ *  __Do not use this function__ to implement [text input](@ref input_char).
+ *
+ *  @param[in] window The desired window.
+ *  @param[in] key The desired [keyboard key](@ref keys).  `GLFW_KEY_UNKNOWN` is
+ *  not a valid key for this function.
+ *  @return One of `GLFW_PRESS` or `GLFW_RELEASE`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_key
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwGetKey(GLFWwindow* window, int key);
+
+/*! @brief Returns the last reported state of a mouse button for the specified
+ *  window.
+ *
+ *  This function returns the last state reported for the specified mouse button
+ *  to the specified window.  The returned state is one of `GLFW_PRESS` or
+ *  `GLFW_RELEASE`.
+ *
+ *  If the @ref GLFW_STICKY_MOUSE_BUTTONS input mode is enabled, this function
+ *  returns `GLFW_PRESS` the first time you call it for a mouse button that was
+ *  pressed, even if that mouse button has already been released.
+ *
+ *  The @ref GLFW_UNLIMITED_MOUSE_BUTTONS input mode does not effect the
+ *  limit on buttons which can be polled with this function.
+ *
+ *  @param[in] window The desired window.
+ *  @param[in] button The desired [mouse button token](@ref buttons).
+ *  @return One of `GLFW_PRESS` or `GLFW_RELEASE`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_mouse_button
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwGetMouseButton(GLFWwindow* window, int button);
+
+/*! @brief Retrieves the position of the cursor relative to the content area of
+ *  the window.
+ *
+ *  This function returns the position of the cursor, in screen coordinates,
+ *  relative to the upper-left corner of the content area of the specified
+ *  window.
+ *
+ *  If the cursor is disabled (with `GLFW_CURSOR_DISABLED`) then the cursor
+ *  position is unbounded and limited only by the minimum and maximum values of
+ *  a `double`.
+ *
+ *  The coordinate can be converted to their integer equivalents with the
+ *  `floor` function.  Casting directly to an integer type works for positive
+ *  coordinates, but fails for negative ones.
+ *
+ *  Any or all of the position arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` position arguments will be set to zero.
+ *
+ *  @param[in] window The desired window.
+ *  @param[out] xpos Where to store the cursor x-coordinate, relative to the
+ *  left edge of the content area, or `NULL`.
+ *  @param[out] ypos Where to store the cursor y-coordinate, relative to the to
+ *  top edge of the content area, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_pos
+ *  @sa @ref glfwSetCursorPos
+ *
+ *  @since Added in version 3.0.  Replaces `glfwGetMousePos`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwGetCursorPos(GLFWwindow* window, double* xpos, double* ypos);
+
+/*! @brief Sets the position of the cursor, relative to the content area of the
+ *  window.
+ *
+ *  This function sets the position, in screen coordinates, of the cursor
+ *  relative to the upper-left corner of the content area of the specified
+ *  window.  The window must have input focus.  If the window does not have
+ *  input focus when this function is called, it fails silently.
+ *
+ *  __Do not use this function__ to implement things like camera controls.  GLFW
+ *  already provides the `GLFW_CURSOR_DISABLED` cursor mode that hides the
+ *  cursor, transparently re-centers it and provides unconstrained cursor
+ *  motion.  See @ref glfwSetInputMode for more information.
+ *
+ *  If the cursor mode is `GLFW_CURSOR_DISABLED` then the cursor position is
+ *  unconstrained and limited only by the minimum and maximum values of
+ *  a `double`.
+ *
+ *  @param[in] window The desired window.
+ *  @param[in] xpos The desired x-coordinate, relative to the left edge of the
+ *  content area.
+ *  @param[in] ypos The desired y-coordinate, relative to the top edge of the
+ *  content area.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_PLATFORM_ERROR and @ref GLFW_FEATURE_UNAVAILABLE (see remarks).
+ *
+ *  @remark @wayland This function will only work when the cursor mode is
+ *  `GLFW_CURSOR_DISABLED`, otherwise it will emit @ref GLFW_FEATURE_UNAVAILABLE.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_pos
+ *  @sa @ref glfwGetCursorPos
+ *
+ *  @since Added in version 3.0.  Replaces `glfwSetMousePos`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwSetCursorPos(GLFWwindow* window, double xpos, double ypos);
+
+/*! @brief Creates a custom cursor.
+ *
+ *  Creates a new custom cursor image that can be set for a window with @ref
+ *  glfwSetCursor.  The cursor can be destroyed with @ref glfwDestroyCursor.
+ *  Any remaining cursors are destroyed by @ref glfwTerminate.
+ *
+ *  The pixels are 32-bit, little-endian, non-premultiplied RGBA, i.e. eight
+ *  bits per channel with the red channel first.  They are arranged canonically
+ *  as packed sequential rows, starting from the top-left corner.
+ *
+ *  The cursor hotspot is specified in pixels, relative to the upper-left corner
+ *  of the cursor image.  Like all other coordinate systems in GLFW, the X-axis
+ *  points to the right and the Y-axis points down.
+ *
+ *  @param[in] image The desired cursor image.
+ *  @param[in] xhot The desired x-coordinate, in pixels, of the cursor hotspot.
+ *  @param[in] yhot The desired y-coordinate, in pixels, of the cursor hotspot.
+ *  @return The handle of the created cursor, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_VALUE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The specified image data is copied before this function
+ *  returns.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_object
+ *  @sa @ref glfwDestroyCursor
+ *  @sa @ref glfwCreateStandardCursor
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWcursor* glfwCreateCursor(const GLFWimage* image, int xhot, int yhot);
+
+/*! @brief Creates a cursor with a standard shape.
+ *
+ *  Returns a cursor with a standard shape, that can be set for a window with
+ *  @ref glfwSetCursor.  The images for these cursors come from the system
+ *  cursor theme and their exact appearance will vary between platforms.
+ *
+ *  Most of these shapes are guaranteed to exist on every supported platform but
+ *  a few may not be present.  See the table below for details.
+ *
+ *  Cursor shape                   | Windows | macOS | X11    | Wayland
+ *  ------------------------------ | ------- | ----- | ------ | -------
+ *  @ref GLFW_ARROW_CURSOR         | Yes     | Yes   | Yes    | Yes
+ *  @ref GLFW_IBEAM_CURSOR         | Yes     | Yes   | Yes    | Yes
+ *  @ref GLFW_CROSSHAIR_CURSOR     | Yes     | Yes   | Yes    | Yes
+ *  @ref GLFW_POINTING_HAND_CURSOR | Yes     | Yes   | Yes    | Yes
+ *  @ref GLFW_RESIZE_EW_CURSOR     | Yes     | Yes   | Yes    | Yes
+ *  @ref GLFW_RESIZE_NS_CURSOR     | Yes     | Yes   | Yes    | Yes
+ *  @ref GLFW_RESIZE_NWSE_CURSOR   | Yes     | Yes<sup>1</sup> | Maybe<sup>2</sup> | Maybe<sup>2</sup>
+ *  @ref GLFW_RESIZE_NESW_CURSOR   | Yes     | Yes<sup>1</sup> | Maybe<sup>2</sup> | Maybe<sup>2</sup>
+ *  @ref GLFW_RESIZE_ALL_CURSOR    | Yes     | Yes   | Yes    | Yes
+ *  @ref GLFW_NOT_ALLOWED_CURSOR   | Yes     | Yes   | Maybe<sup>2</sup> | Maybe<sup>2</sup>
+ *
+ *  1) This uses a private system API and may fail in the future.
+ *
+ *  2) This uses a newer standard that not all cursor themes support.
+ *
+ *  If the requested shape is not available, this function emits a @ref
+ *  GLFW_CURSOR_UNAVAILABLE error and returns `NULL`.
+ *
+ *  @param[in] shape One of the [standard shapes](@ref shapes).
+ *  @return A new cursor ready to use or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM, @ref GLFW_CURSOR_UNAVAILABLE and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_standard
+ *  @sa @ref glfwCreateCursor
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWcursor* glfwCreateStandardCursor(int shape);
+
+/*! @brief Destroys a cursor.
+ *
+ *  This function destroys a cursor previously created with @ref
+ *  glfwCreateCursor.  Any remaining cursors will be destroyed by @ref
+ *  glfwTerminate.
+ *
+ *  If the specified cursor is current for any window, that window will be
+ *  reverted to the default cursor.  This does not affect the cursor mode.
+ *
+ *  @param[in] cursor The cursor object to destroy.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @reentrancy This function must not be called from a callback.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_object
+ *  @sa @ref glfwCreateCursor
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwDestroyCursor(GLFWcursor* cursor);
+
+/*! @brief Sets the cursor for the window.
+ *
+ *  This function sets the cursor image to be used when the cursor is over the
+ *  content area of the specified window.  The set cursor will only be visible
+ *  when the [cursor mode](@ref cursor_mode) of the window is
+ *  `GLFW_CURSOR_NORMAL`.
+ *
+ *  On some platforms, the set cursor may not be visible unless the window also
+ *  has input focus.
+ *
+ *  @param[in] window The window to set the cursor for.
+ *  @param[in] cursor The cursor to set, or `NULL` to switch back to the default
+ *  arrow cursor.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_object
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwSetCursor(GLFWwindow* window, GLFWcursor* cursor);
+
+/*! @brief Sets the key callback.
+ *
+ *  This function sets the key callback of the specified window, which is called
+ *  when a key is pressed, repeated or released.
+ *
+ *  The key functions deal with physical keys, with layout independent
+ *  [key tokens](@ref keys) named after their values in the standard US keyboard
+ *  layout.  If you want to input text, use the
+ *  [character callback](@ref glfwSetCharCallback) instead.
+ *
+ *  When a window loses input focus, it will generate synthetic key release
+ *  events for all pressed keys with associated key tokens.  You can tell these
+ *  events from user-generated events by the fact that the synthetic ones are
+ *  generated after the focus loss event has been processed, i.e. after the
+ *  [window focus callback](@ref glfwSetWindowFocusCallback) has been called.
+ *
+ *  The scancode of a key is specific to that platform or sometimes even to that
+ *  machine.  Scancodes are intended to allow users to bind keys that don't have
+ *  a GLFW key token.  Such keys have `key` set to `GLFW_KEY_UNKNOWN`, their
+ *  state is not saved and so it cannot be queried with @ref glfwGetKey.
+ *
+ *  Sometimes GLFW needs to generate synthetic key events, in which case the
+ *  scancode may be zero.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new key callback, or `NULL` to remove the currently
+ *  set callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int key, int scancode, int action, int mods)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWkeyfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_key
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter and return value.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWkeyfun glfwSetKeyCallback(GLFWwindow* window, GLFWkeyfun callback);
+
+/*! @brief Sets the Unicode character callback.
+ *
+ *  This function sets the character callback of the specified window, which is
+ *  called when a Unicode character is input.
+ *
+ *  The character callback is intended for Unicode text input.  As it deals with
+ *  characters, it is keyboard layout dependent, whereas the
+ *  [key callback](@ref glfwSetKeyCallback) is not.  Characters do not map 1:1
+ *  to physical keys, as a key may produce zero, one or more characters.  If you
+ *  want to know whether a specific physical key was pressed or released, see
+ *  the key callback instead.
+ *
+ *  The character callback behaves as system text input normally does and will
+ *  not be called if modifier keys are held down that would prevent normal text
+ *  input on that platform, for example a Super (Command) key on macOS or Alt key
+ *  on Windows.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, unsigned int codepoint)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWcharfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_char
+ *
+ *  @since Added in version 2.4.
+ *  @glfw3 Added window handle parameter and return value.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWcharfun glfwSetCharCallback(GLFWwindow* window, GLFWcharfun callback);
+
+/*! @brief Sets the Unicode character with modifiers callback.
+ *
+ *  This function sets the character with modifiers callback of the specified
+ *  window, which is called when a Unicode character is input regardless of what
+ *  modifier keys are used.
+ *
+ *  The character with modifiers callback is intended for implementing custom
+ *  Unicode character input.  For regular Unicode text input, see the
+ *  [character callback](@ref glfwSetCharCallback).  Like the character
+ *  callback, the character with modifiers callback deals with characters and is
+ *  keyboard layout dependent.  Characters do not map 1:1 to physical keys, as
+ *  a key may produce zero, one or more characters.  If you want to know whether
+ *  a specific physical key was pressed or released, see the
+ *  [key callback](@ref glfwSetKeyCallback) instead.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, unsigned int codepoint, int mods)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWcharmodsfun).
+ *
+ *  @deprecated Scheduled for removal in version 4.0.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_char
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWcharmodsfun glfwSetCharModsCallback(GLFWwindow* window, GLFWcharmodsfun callback);
+
+/*! @brief Sets the mouse button callback.
+ *
+ *  This function sets the mouse button callback of the specified window, which
+ *  is called when a mouse button is pressed or released.
+ *
+ *  When a window loses input focus, it will generate synthetic mouse button
+ *  release events for all pressed mouse buttons with associated button tokens.
+ *  You can tell these events from user-generated events by the fact that the
+ *  synthetic ones are generated after the focus loss event has been processed,
+ *  i.e. after the [window focus callback](@ref glfwSetWindowFocusCallback) has
+ *  been called.
+ *
+ *  The reported `button` value can be higher than `GLFW_MOUSE_BUTTON_LAST` if
+ *  the button does not have an associated [button token](@ref buttons) and the
+ *  @ref GLFW_UNLIMITED_MOUSE_BUTTONS input mode is set.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int button, int action, int mods)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWmousebuttonfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_mouse_button
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter and return value.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWmousebuttonfun glfwSetMouseButtonCallback(GLFWwindow* window, GLFWmousebuttonfun callback);
+
+/*! @brief Sets the cursor position callback.
+ *
+ *  This function sets the cursor position callback of the specified window,
+ *  which is called when the cursor is moved.  The callback is provided with the
+ *  position, in screen coordinates, relative to the upper-left corner of the
+ *  content area of the window.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, double xpos, double ypos);
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWcursorposfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_pos
+ *
+ *  @since Added in version 3.0.  Replaces `glfwSetMousePosCallback`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWcursorposfun glfwSetCursorPosCallback(GLFWwindow* window, GLFWcursorposfun callback);
+
+/*! @brief Sets the cursor enter/leave callback.
+ *
+ *  This function sets the cursor boundary crossing callback of the specified
+ *  window, which is called when the cursor enters or leaves the content area of
+ *  the window.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int entered)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWcursorenterfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_enter
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWcursorenterfun glfwSetCursorEnterCallback(GLFWwindow* window, GLFWcursorenterfun callback);
+
+/*! @brief Sets the scroll callback.
+ *
+ *  This function sets the scroll callback of the specified window, which is
+ *  called when a scrolling device is used, such as a mouse wheel or scrolling
+ *  area of a touchpad.
+ *
+ *  The scroll callback receives all scrolling input, like that from a mouse
+ *  wheel or a touchpad scrolling area.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new scroll callback, or `NULL` to remove the
+ *  currently set callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, double xoffset, double yoffset)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWscrollfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref scrolling
+ *
+ *  @since Added in version 3.0.  Replaces `glfwSetMouseWheelCallback`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWscrollfun glfwSetScrollCallback(GLFWwindow* window, GLFWscrollfun callback);
+
+/*! @brief Sets the path drop callback.
+ *
+ *  This function sets the path drop callback of the specified window, which is
+ *  called when one or more dragged paths are dropped on the window.
+ *
+ *  Because the path array and its strings may have been generated specifically
+ *  for that event, they are not guaranteed to be valid after the callback has
+ *  returned.  If you wish to use them after the callback returns, you need to
+ *  make a deep copy.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new file drop callback, or `NULL` to remove the
+ *  currently set callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int path_count, const char* paths[])
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWdropfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref path_drop
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWdropfun glfwSetDropCallback(GLFWwindow* window, GLFWdropfun callback);
+
+/*! @brief Returns whether the specified joystick is present.
+ *
+ *  This function returns whether the specified joystick is present.
+ *
+ *  There is no need to call this function before other functions that accept
+ *  a joystick ID, as they all check for presence before performing any other
+ *  work.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @return `GLFW_TRUE` if the joystick is present, or `GLFW_FALSE` otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref joystick
+ *
+ *  @since Added in version 3.0.  Replaces `glfwGetJoystickParam`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwJoystickPresent(int jid);
+
+/*! @brief Returns the values of all axes of the specified joystick.
+ *
+ *  This function returns the values of all axes of the specified joystick.
+ *  Each element in the array is a value between -1.0 and 1.0.
+ *
+ *  If the specified joystick is not present this function will return `NULL`
+ *  but will not generate an error.  This can be used instead of first calling
+ *  @ref glfwJoystickPresent.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @param[out] count Where to store the number of axis values in the returned
+ *  array.  This is set to zero if the joystick is not present or an error
+ *  occurred.
+ *  @return An array of axis values, or `NULL` if the joystick is not present or
+ *  an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified joystick is
+ *  disconnected or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref joystick_axis
+ *
+ *  @since Added in version 3.0.  Replaces `glfwGetJoystickPos`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const float* glfwGetJoystickAxes(int jid, int* count);
+
+/*! @brief Returns the state of all buttons of the specified joystick.
+ *
+ *  This function returns the state of all buttons of the specified joystick.
+ *  Each element in the array is either `GLFW_PRESS` or `GLFW_RELEASE`.
+ *
+ *  For backward compatibility with earlier versions that did not have @ref
+ *  glfwGetJoystickHats, the button array also includes all hats, each
+ *  represented as four buttons.  The hats are in the same order as returned by
+ *  __glfwGetJoystickHats__ and are in the order _up_, _right_, _down_ and
+ *  _left_.  To disable these extra buttons, set the @ref
+ *  GLFW_JOYSTICK_HAT_BUTTONS init hint before initialization.
+ *
+ *  If the specified joystick is not present this function will return `NULL`
+ *  but will not generate an error.  This can be used instead of first calling
+ *  @ref glfwJoystickPresent.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @param[out] count Where to store the number of button states in the returned
+ *  array.  This is set to zero if the joystick is not present or an error
+ *  occurred.
+ *  @return An array of button states, or `NULL` if the joystick is not present
+ *  or an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified joystick is
+ *  disconnected or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref joystick_button
+ *
+ *  @since Added in version 2.2.
+ *  @glfw3 Changed to return a dynamic array.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const unsigned char* glfwGetJoystickButtons(int jid, int* count);
+
+/*! @brief Returns the state of all hats of the specified joystick.
+ *
+ *  This function returns the state of all hats of the specified joystick.
+ *  Each element in the array is one of the following values:
+ *
+ *  Name                  | Value
+ *  ----                  | -----
+ *  `GLFW_HAT_CENTERED`   | 0
+ *  `GLFW_HAT_UP`         | 1
+ *  `GLFW_HAT_RIGHT`      | 2
+ *  `GLFW_HAT_DOWN`       | 4
+ *  `GLFW_HAT_LEFT`       | 8
+ *  `GLFW_HAT_RIGHT_UP`   | `GLFW_HAT_RIGHT` \| `GLFW_HAT_UP`
+ *  `GLFW_HAT_RIGHT_DOWN` | `GLFW_HAT_RIGHT` \| `GLFW_HAT_DOWN`
+ *  `GLFW_HAT_LEFT_UP`    | `GLFW_HAT_LEFT` \| `GLFW_HAT_UP`
+ *  `GLFW_HAT_LEFT_DOWN`  | `GLFW_HAT_LEFT` \| `GLFW_HAT_DOWN`
+ *
+ *  The diagonal directions are bitwise combinations of the primary (up, right,
+ *  down and left) directions and you can test for these individually by ANDing
+ *  it with the corresponding direction.
+ *
+ *  @code
+ *  if (hats[2] & GLFW_HAT_RIGHT)
+ *  {
+ *      // State of hat 2 could be right-up, right or right-down
+ *  }
+ *  @endcode
+ *
+ *  If the specified joystick is not present this function will return `NULL`
+ *  but will not generate an error.  This can be used instead of first calling
+ *  @ref glfwJoystickPresent.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @param[out] count Where to store the number of hat states in the returned
+ *  array.  This is set to zero if the joystick is not present or an error
+ *  occurred.
+ *  @return An array of hat states, or `NULL` if the joystick is not present
+ *  or an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified joystick is
+ *  disconnected, this function is called again for that joystick or the library
+ *  is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref joystick_hat
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const unsigned char* glfwGetJoystickHats(int jid, int* count);
+
+/*! @brief Returns the name of the specified joystick.
+ *
+ *  This function returns the name, encoded as UTF-8, of the specified joystick.
+ *  The returned string is allocated and freed by GLFW.  You should not free it
+ *  yourself.
+ *
+ *  If the specified joystick is not present this function will return `NULL`
+ *  but will not generate an error.  This can be used instead of first calling
+ *  @ref glfwJoystickPresent.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @return The UTF-8 encoded name of the joystick, or `NULL` if the joystick
+ *  is not present or an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified joystick is
+ *  disconnected or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref joystick_name
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const char* glfwGetJoystickName(int jid);
+
+/*! @brief Returns the SDL compatible GUID of the specified joystick.
+ *
+ *  This function returns the SDL compatible GUID, as a UTF-8 encoded
+ *  hexadecimal string, of the specified joystick.  The returned string is
+ *  allocated and freed by GLFW.  You should not free it yourself.
+ *
+ *  The GUID is what connects a joystick to a gamepad mapping.  A connected
+ *  joystick will always have a GUID even if there is no gamepad mapping
+ *  assigned to it.
+ *
+ *  If the specified joystick is not present this function will return `NULL`
+ *  but will not generate an error.  This can be used instead of first calling
+ *  @ref glfwJoystickPresent.
+ *
+ *  The GUID uses the format introduced in SDL 2.0.5.  This GUID tries to
+ *  uniquely identify the make and model of a joystick but does not identify
+ *  a specific unit, e.g. all wired Xbox 360 controllers will have the same
+ *  GUID on that platform.  The GUID for a unit may vary between platforms
+ *  depending on what hardware information the platform specific APIs provide.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @return The UTF-8 encoded GUID of the joystick, or `NULL` if the joystick
+ *  is not present or an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified joystick is
+ *  disconnected or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref gamepad
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const char* glfwGetJoystickGUID(int jid);
+
+/*! @brief Sets the user pointer of the specified joystick.
+ *
+ *  This function sets the user-defined pointer of the specified joystick.  The
+ *  current value is retained until the joystick is disconnected.  The initial
+ *  value is `NULL`.
+ *
+ *  This function may be called from the joystick callback, even for a joystick
+ *  that is being disconnected.
+ *
+ *  @param[in] jid The joystick whose pointer to set.
+ *  @param[in] pointer The new value.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref joystick_userptr
+ *  @sa @ref glfwGetJoystickUserPointer
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwSetJoystickUserPointer(int jid, void* pointer);
+
+/*! @brief Returns the user pointer of the specified joystick.
+ *
+ *  This function returns the current value of the user-defined pointer of the
+ *  specified joystick.  The initial value is `NULL`.
+ *
+ *  This function may be called from the joystick callback, even for a joystick
+ *  that is being disconnected.
+ *
+ *  @param[in] jid The joystick whose pointer to return.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref joystick_userptr
+ *  @sa @ref glfwSetJoystickUserPointer
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void* glfwGetJoystickUserPointer(int jid);
+
+/*! @brief Returns whether the specified joystick has a gamepad mapping.
+ *
+ *  This function returns whether the specified joystick is both present and has
+ *  a gamepad mapping.
+ *
+ *  If the specified joystick is present but does not have a gamepad mapping
+ *  this function will return `GLFW_FALSE` but will not generate an error.  Call
+ *  @ref glfwJoystickPresent to check if a joystick is present regardless of
+ *  whether it has a mapping.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @return `GLFW_TRUE` if a joystick is both present and has a gamepad mapping,
+ *  or `GLFW_FALSE` otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref gamepad
+ *  @sa @ref glfwGetGamepadState
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwJoystickIsGamepad(int jid);
+
+/*! @brief Sets the joystick configuration callback.
+ *
+ *  This function sets the joystick configuration callback, or removes the
+ *  currently set callback.  This is called when a joystick is connected to or
+ *  disconnected from the system.
+ *
+ *  For joystick connection and disconnection events to be delivered on all
+ *  platforms, you need to call one of the [event processing](@ref events)
+ *  functions.  Joystick disconnection may also be detected and the callback
+ *  called by joystick functions.  The function will then return whatever it
+ *  returns if the joystick is not present.
+ *
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(int jid, int event)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWjoystickfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref joystick_event
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWjoystickfun glfwSetJoystickCallback(GLFWjoystickfun callback);
+
+/*! @brief Adds the specified SDL_GameControllerDB gamepad mappings.
+ *
+ *  This function parses the specified ASCII encoded string and updates the
+ *  internal list with any gamepad mappings it finds.  This string may
+ *  contain either a single gamepad mapping or many mappings separated by
+ *  newlines.  The parser supports the full format of the `gamecontrollerdb.txt`
+ *  source file including empty lines and comments.
+ *
+ *  See @ref gamepad_mapping for a description of the format.
+ *
+ *  If there is already a gamepad mapping for a given GUID in the internal list,
+ *  it will be replaced by the one passed to this function.  If the library is
+ *  terminated and re-initialized the internal list will revert to the built-in
+ *  default.
+ *
+ *  @param[in] string The string containing the gamepad mappings.
+ *  @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_VALUE.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref gamepad
+ *  @sa @ref glfwJoystickIsGamepad
+ *  @sa @ref glfwGetGamepadName
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwUpdateGamepadMappings(const char* string);
+
+/*! @brief Returns the human-readable gamepad name for the specified joystick.
+ *
+ *  This function returns the human-readable name of the gamepad from the
+ *  gamepad mapping assigned to the specified joystick.
+ *
+ *  If the specified joystick is not present or does not have a gamepad mapping
+ *  this function will return `NULL` but will not generate an error.  Call
+ *  @ref glfwJoystickPresent to check whether it is present regardless of
+ *  whether it has a mapping.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @return The UTF-8 encoded name of the gamepad, or `NULL` if the
+ *  joystick is not present, does not have a mapping or an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref GLFW_INVALID_ENUM.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified joystick is
+ *  disconnected, the gamepad mappings are updated or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref gamepad
+ *  @sa @ref glfwJoystickIsGamepad
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const char* glfwGetGamepadName(int jid);
+
+/*! @brief Retrieves the state of the specified joystick remapped as a gamepad.
+ *
+ *  This function retrieves the state of the specified joystick remapped to
+ *  an Xbox-like gamepad.
+ *
+ *  If the specified joystick is not present or does not have a gamepad mapping
+ *  this function will return `GLFW_FALSE` but will not generate an error.  Call
+ *  @ref glfwJoystickPresent to check whether it is present regardless of
+ *  whether it has a mapping.
+ *
+ *  The Guide button may not be available for input as it is often hooked by the
+ *  system or the Steam client.
+ *
+ *  Not all devices have all the buttons or axes provided by @ref
+ *  GLFWgamepadstate.  Unavailable buttons and axes will always report
+ *  `GLFW_RELEASE` and 0.0 respectively.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @param[out] state The gamepad input state of the joystick.
+ *  @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if no joystick is
+ *  connected, it has no gamepad mapping or an [error](@ref error_handling)
+ *  occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref gamepad
+ *  @sa @ref glfwUpdateGamepadMappings
+ *  @sa @ref glfwJoystickIsGamepad
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwGetGamepadState(int jid, GLFWgamepadstate* state);
+
+/*! @brief Sets the clipboard to the specified string.
+ *
+ *  This function sets the system clipboard to the specified, UTF-8 encoded
+ *  string.
+ *
+ *  @param[in] window Deprecated.  Any valid window or `NULL`.
+ *  @param[in] string A UTF-8 encoded string.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @win32 The clipboard on Windows has a single global lock for reading and
+ *  writing.  GLFW tries to acquire it a few times, which is almost always enough.  If it
+ *  cannot acquire the lock then this function emits @ref GLFW_PLATFORM_ERROR and returns.
+ *  It is safe to try this multiple times.
+ *
+ *  @pointer_lifetime The specified string is copied before this function
+ *  returns.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref clipboard
+ *  @sa @ref glfwGetClipboardString
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwSetClipboardString(GLFWwindow* window, const char* string);
+
+/*! @brief Returns the contents of the clipboard as a string.
+ *
+ *  This function returns the contents of the system clipboard, if it contains
+ *  or is convertible to a UTF-8 encoded string.  If the clipboard is empty or
+ *  if its contents cannot be converted, `NULL` is returned and a @ref
+ *  GLFW_FORMAT_UNAVAILABLE error is generated.
+ *
+ *  @param[in] window Deprecated.  Any valid window or `NULL`.
+ *  @return The contents of the clipboard as a UTF-8 encoded string, or `NULL`
+ *  if an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_FORMAT_UNAVAILABLE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @win32 The clipboard on Windows has a single global lock for reading and
+ *  writing.  GLFW tries to acquire it a few times, which is almost always enough.  If it
+ *  cannot acquire the lock then this function emits @ref GLFW_PLATFORM_ERROR and returns.
+ *  It is safe to try this multiple times.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the next call to @ref
+ *  glfwGetClipboardString or @ref glfwSetClipboardString, or until the library
+ *  is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref clipboard
+ *  @sa @ref glfwSetClipboardString
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const char* glfwGetClipboardString(GLFWwindow* window);
+
+/*! @brief Returns the GLFW time.
+ *
+ *  This function returns the current GLFW time, in seconds.  Unless the time
+ *  has been set using @ref glfwSetTime it measures time elapsed since GLFW was
+ *  initialized.
+ *
+ *  This function and @ref glfwSetTime are helper functions on top of @ref
+ *  glfwGetTimerFrequency and @ref glfwGetTimerValue.
+ *
+ *  The resolution of the timer is system dependent, but is usually on the order
+ *  of a few micro- or nanoseconds.  It uses the highest-resolution monotonic
+ *  time source on each operating system.
+ *
+ *  @return The current time, in seconds, or zero if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Reading and
+ *  writing of the internal base time is not atomic, so it needs to be
+ *  externally synchronized with calls to @ref glfwSetTime.
+ *
+ *  @sa @ref time
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup input
+ */
+GLFWAPI double glfwGetTime(void);
+
+/*! @brief Sets the GLFW time.
+ *
+ *  This function sets the current GLFW time, in seconds.  The value must be
+ *  a positive finite number less than or equal to 18446744073.0, which is
+ *  approximately 584.5 years.
+ *
+ *  This function and @ref glfwGetTime are helper functions on top of @ref
+ *  glfwGetTimerFrequency and @ref glfwGetTimerValue.
+ *
+ *  @param[in] time The new value, in seconds.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_VALUE.
+ *
+ *  @remark The upper limit of GLFW time is calculated as
+ *  floor((2<sup>64</sup> - 1) / 10<sup>9</sup>) and is due to implementations
+ *  storing nanoseconds in 64 bits.  The limit may be increased in the future.
+ *
+ *  @thread_safety This function may be called from any thread.  Reading and
+ *  writing of the internal base time is not atomic, so it needs to be
+ *  externally synchronized with calls to @ref glfwGetTime.
+ *
+ *  @sa @ref time
+ *
+ *  @since Added in version 2.2.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwSetTime(double time);
+
+/*! @brief Returns the current value of the raw timer.
+ *
+ *  This function returns the current value of the raw timer, measured in
+ *  1&nbsp;/&nbsp;frequency seconds.  To get the frequency, call @ref
+ *  glfwGetTimerFrequency.
+ *
+ *  @return The value of the timer, or zero if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref time
+ *  @sa @ref glfwGetTimerFrequency
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup input
+ */
+GLFWAPI uint64_t glfwGetTimerValue(void);
+
+/*! @brief Returns the frequency, in Hz, of the raw timer.
+ *
+ *  This function returns the frequency, in Hz, of the raw timer.
+ *
+ *  @return The frequency of the timer, in Hz, or zero if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref time
+ *  @sa @ref glfwGetTimerValue
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup input
+ */
+GLFWAPI uint64_t glfwGetTimerFrequency(void);
+
+/*! @brief Makes the context of the specified window current for the calling
+ *  thread.
+ *
+ *  This function makes the OpenGL or OpenGL ES context of the specified window
+ *  current on the calling thread.  It can also detach the current context from
+ *  the calling thread without making a new one current by passing in `NULL`.
+ *
+ *  A context must only be made current on a single thread at a time and each
+ *  thread can have only a single current context at a time.  Making a context
+ *  current detaches any previously current context on the calling thread.
+ *
+ *  When moving a context between threads, you must detach it (make it
+ *  non-current) on the old thread before making it current on the new one.
+ *
+ *  By default, making a context non-current implicitly forces a pipeline flush.
+ *  On machines that support `GL_KHR_context_flush_control`, you can control
+ *  whether a context performs this flush by setting the
+ *  [GLFW_CONTEXT_RELEASE_BEHAVIOR](@ref GLFW_CONTEXT_RELEASE_BEHAVIOR_hint)
+ *  hint.
+ *
+ *  The specified window must have an OpenGL or OpenGL ES context.  Specifying
+ *  a window without a context will generate a @ref GLFW_NO_WINDOW_CONTEXT
+ *  error.
+ *
+ *  @param[in] window The window whose context to make current, or `NULL` to
+ *  detach the current context.
+ *
+ *  @remarks If the previously current context was created via a different
+ *  context creation API than the one passed to this function, GLFW will still
+ *  detach the previous one from its API before making the new one current.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_WINDOW_CONTEXT and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref context_current
+ *  @sa @ref glfwGetCurrentContext
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup context
+ */
+GLFWAPI void glfwMakeContextCurrent(GLFWwindow* window);
+
+/*! @brief Returns the window whose context is current on the calling thread.
+ *
+ *  This function returns the window whose OpenGL or OpenGL ES context is
+ *  current on the calling thread.
+ *
+ *  @return The window whose context is current, or `NULL` if no window's
+ *  context is current.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref context_current
+ *  @sa @ref glfwMakeContextCurrent
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup context
+ */
+GLFWAPI GLFWwindow* glfwGetCurrentContext(void);
+
+/*! @brief Swaps the front and back buffers of the specified window.
+ *
+ *  This function swaps the front and back buffers of the specified window when
+ *  rendering with OpenGL or OpenGL ES.  If the swap interval is greater than
+ *  zero, the GPU driver waits the specified number of screen updates before
+ *  swapping the buffers.
+ *
+ *  The specified window must have an OpenGL or OpenGL ES context.  Specifying
+ *  a window without a context will generate a @ref GLFW_NO_WINDOW_CONTEXT
+ *  error.
+ *
+ *  This function does not apply to Vulkan.  If you are rendering with Vulkan,
+ *  see `vkQueuePresentKHR` instead.
+ *
+ *  @param[in] window The window whose buffers to swap.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_WINDOW_CONTEXT and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark __EGL:__ The context of the specified window must be current on the
+ *  calling thread.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref buffer_swap
+ *  @sa @ref glfwSwapInterval
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSwapBuffers(GLFWwindow* window);
+
+/*! @brief Sets the swap interval for the current context.
+ *
+ *  This function sets the swap interval for the current OpenGL or OpenGL ES
+ *  context, i.e. the number of screen updates to wait from the time @ref
+ *  glfwSwapBuffers was called before swapping the buffers and returning.  This
+ *  is sometimes called _vertical synchronization_, _vertical retrace
+ *  synchronization_ or just _vsync_.
+ *
+ *  A context that supports either of the `WGL_EXT_swap_control_tear` and
+ *  `GLX_EXT_swap_control_tear` extensions also accepts _negative_ swap
+ *  intervals, which allows the driver to swap immediately even if a frame
+ *  arrives a little bit late.  You can check for these extensions with @ref
+ *  glfwExtensionSupported.
+ *
+ *  A context must be current on the calling thread.  Calling this function
+ *  without a current context will cause a @ref GLFW_NO_CURRENT_CONTEXT error.
+ *
+ *  This function does not apply to Vulkan.  If you are rendering with Vulkan,
+ *  see the present mode of your swapchain instead.
+ *
+ *  @param[in] interval The minimum number of screen updates to wait for
+ *  until the buffers are swapped by @ref glfwSwapBuffers.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_CURRENT_CONTEXT and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark This function is not called during context creation, leaving the
+ *  swap interval set to whatever is the default for that API.  This is done
+ *  because some swap interval extensions used by GLFW do not allow the swap
+ *  interval to be reset to zero once it has been set to a non-zero value.
+ *
+ *  @remark Some GPU drivers do not honor the requested swap interval, either
+ *  because of a user setting that overrides the application's request or due to
+ *  bugs in the driver.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref buffer_swap
+ *  @sa @ref glfwSwapBuffers
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup context
+ */
+GLFWAPI void glfwSwapInterval(int interval);
+
+/*! @brief Returns whether the specified extension is available.
+ *
+ *  This function returns whether the specified
+ *  [API extension](@ref context_glext) is supported by the current OpenGL or
+ *  OpenGL ES context.  It searches both for client API extension and context
+ *  creation API extensions.
+ *
+ *  A context must be current on the calling thread.  Calling this function
+ *  without a current context will cause a @ref GLFW_NO_CURRENT_CONTEXT error.
+ *
+ *  As this functions retrieves and searches one or more extension strings each
+ *  call, it is recommended that you cache its results if it is going to be used
+ *  frequently.  The extension strings will not change during the lifetime of
+ *  a context, so there is no danger in doing this.
+ *
+ *  This function does not apply to Vulkan.  If you are using Vulkan, see @ref
+ *  glfwGetRequiredInstanceExtensions, `vkEnumerateInstanceExtensionProperties`
+ *  and `vkEnumerateDeviceExtensionProperties` instead.
+ *
+ *  @param[in] extension The ASCII encoded name of the extension.
+ *  @return `GLFW_TRUE` if the extension is available, or `GLFW_FALSE`
+ *  otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_CURRENT_CONTEXT, @ref GLFW_INVALID_VALUE and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref context_glext
+ *  @sa @ref glfwGetProcAddress
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup context
+ */
+GLFWAPI int glfwExtensionSupported(const char* extension);
+
+/*! @brief Returns the address of the specified function for the current
+ *  context.
+ *
+ *  This function returns the address of the specified OpenGL or OpenGL ES
+ *  [core or extension function](@ref context_glext), if it is supported
+ *  by the current context.
+ *
+ *  A context must be current on the calling thread.  Calling this function
+ *  without a current context will cause a @ref GLFW_NO_CURRENT_CONTEXT error.
+ *
+ *  This function does not apply to Vulkan.  If you are rendering with Vulkan,
+ *  see @ref glfwGetInstanceProcAddress, `vkGetInstanceProcAddr` and
+ *  `vkGetDeviceProcAddr` instead.
+ *
+ *  @param[in] procname The ASCII encoded name of the function.
+ *  @return The address of the function, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_CURRENT_CONTEXT and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark The address of a given function is not guaranteed to be the same
+ *  between contexts.
+ *
+ *  @remark This function may return a non-`NULL` address despite the
+ *  associated version or extension not being available.  Always check the
+ *  context version or extension string first.
+ *
+ *  @pointer_lifetime The returned function pointer is valid until the context
+ *  is destroyed or the library is terminated.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref context_glext
+ *  @sa @ref glfwExtensionSupported
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup context
+ */
+GLFWAPI GLFWglproc glfwGetProcAddress(const char* procname);
+
+/*! @brief Returns whether the Vulkan loader and an ICD have been found.
+ *
+ *  This function returns whether the Vulkan loader and any minimally functional
+ *  ICD have been found.
+ *
+ *  The availability of a Vulkan loader and even an ICD does not by itself guarantee that
+ *  surface creation or even instance creation is possible.  Call @ref
+ *  glfwGetRequiredInstanceExtensions to check whether the extensions necessary for Vulkan
+ *  surface creation are available and @ref glfwGetPhysicalDevicePresentationSupport to
+ *  check whether a queue family of a physical device supports image presentation.
+ *
+ *  @return `GLFW_TRUE` if Vulkan is minimally available, or `GLFW_FALSE`
+ *  otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref vulkan_support
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup vulkan
+ */
+GLFWAPI int glfwVulkanSupported(void);
+
+/*! @brief Returns the Vulkan instance extensions required by GLFW.
+ *
+ *  This function returns an array of names of Vulkan instance extensions required
+ *  by GLFW for creating Vulkan surfaces for GLFW windows.  If successful, the
+ *  list will always contain `VK_KHR_surface`, so if you don't require any
+ *  additional extensions you can pass this list directly to the
+ *  `VkInstanceCreateInfo` struct.
+ *
+ *  If Vulkan is not available on the machine, this function returns `NULL` and
+ *  generates a @ref GLFW_API_UNAVAILABLE error.  Call @ref glfwVulkanSupported
+ *  to check whether Vulkan is at least minimally available.
+ *
+ *  If Vulkan is available but no set of extensions allowing window surface
+ *  creation was found, this function returns `NULL`.  You may still use Vulkan
+ *  for off-screen rendering and compute work.
+ *
+ *  @param[out] count Where to store the number of extensions in the returned
+ *  array.  This is set to zero if an error occurred.
+ *  @return An array of ASCII encoded extension names, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_API_UNAVAILABLE.
+ *
+ *  @remark Additional extensions may be required by future versions of GLFW.
+ *  You should check if any extensions you wish to enable are already in the
+ *  returned array, as it is an error to specify an extension more than once in
+ *  the `VkInstanceCreateInfo` struct.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is guaranteed to be valid only until the
+ *  library is terminated.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref vulkan_ext
+ *  @sa @ref glfwCreateWindowSurface
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup vulkan
+ */
+GLFWAPI const char** glfwGetRequiredInstanceExtensions(uint32_t* count);
+
+#if defined(VK_VERSION_1_0)
+
+/*! @brief Returns the address of the specified Vulkan instance function.
+ *
+ *  This function returns the address of the specified Vulkan core or extension
+ *  function for the specified instance.  If instance is set to `NULL` it can
+ *  return any function exported from the Vulkan loader, including at least the
+ *  following functions:
+ *
+ *  - `vkEnumerateInstanceExtensionProperties`
+ *  - `vkEnumerateInstanceLayerProperties`
+ *  - `vkCreateInstance`
+ *  - `vkGetInstanceProcAddr`
+ *
+ *  If Vulkan is not available on the machine, this function returns `NULL` and
+ *  generates a @ref GLFW_API_UNAVAILABLE error.  Call @ref glfwVulkanSupported
+ *  to check whether Vulkan is at least minimally available.
+ *
+ *  This function is equivalent to calling `vkGetInstanceProcAddr` with
+ *  a platform-specific query of the Vulkan loader as a fallback.
+ *
+ *  @param[in] instance The Vulkan instance to query, or `NULL` to retrieve
+ *  functions related to instance creation.
+ *  @param[in] procname The ASCII encoded name of the function.
+ *  @return The address of the function, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_API_UNAVAILABLE.
+ *
+ *  @pointer_lifetime The returned function pointer is valid until the library
+ *  is terminated.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref vulkan_proc
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup vulkan
+ */
+GLFWAPI GLFWvkproc glfwGetInstanceProcAddress(VkInstance instance, const char* procname);
+
+/*! @brief Returns whether the specified queue family can present images.
+ *
+ *  This function returns whether the specified queue family of the specified
+ *  physical device supports presentation to the platform GLFW was built for.
+ *
+ *  If Vulkan or the required window surface creation instance extensions are
+ *  not available on the machine, or if the specified instance was not created
+ *  with the required extensions, this function returns `GLFW_FALSE` and
+ *  generates a @ref GLFW_API_UNAVAILABLE error.  Call @ref glfwVulkanSupported
+ *  to check whether Vulkan is at least minimally available and @ref
+ *  glfwGetRequiredInstanceExtensions to check what instance extensions are
+ *  required.
+ *
+ *  @param[in] instance The instance that the physical device belongs to.
+ *  @param[in] device The physical device that the queue family belongs to.
+ *  @param[in] queuefamily The index of the queue family to query.
+ *  @return `GLFW_TRUE` if the queue family supports presentation, or
+ *  `GLFW_FALSE` otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_API_UNAVAILABLE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @macos This function currently always returns `GLFW_TRUE`, as the
+ *  `VK_MVK_macos_surface` and `VK_EXT_metal_surface` extensions do not provide
+ *  a `vkGetPhysicalDevice*PresentationSupport` type function.
+ *
+ *  @thread_safety This function may be called from any thread.  For
+ *  synchronization details of Vulkan objects, see the Vulkan specification.
+ *
+ *  @sa @ref vulkan_present
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup vulkan
+ */
+GLFWAPI int glfwGetPhysicalDevicePresentationSupport(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
+
+/*! @brief Creates a Vulkan surface for the specified window.
+ *
+ *  This function creates a Vulkan surface for the specified window.
+ *
+ *  If the Vulkan loader or at least one minimally functional ICD were not found,
+ *  this function returns `VK_ERROR_INITIALIZATION_FAILED` and generates a @ref
+ *  GLFW_API_UNAVAILABLE error.  Call @ref glfwVulkanSupported to check whether
+ *  Vulkan is at least minimally available.
+ *
+ *  If the required window surface creation instance extensions are not
+ *  available or if the specified instance was not created with these extensions
+ *  enabled, this function returns `VK_ERROR_EXTENSION_NOT_PRESENT` and
+ *  generates a @ref GLFW_API_UNAVAILABLE error.  Call @ref
+ *  glfwGetRequiredInstanceExtensions to check what instance extensions are
+ *  required.
+ *
+ *  The window surface cannot be shared with another API so the window must
+ *  have been created with the [client api hint](@ref GLFW_CLIENT_API_attrib)
+ *  set to `GLFW_NO_API` otherwise it generates a @ref GLFW_INVALID_VALUE error
+ *  and returns `VK_ERROR_NATIVE_WINDOW_IN_USE_KHR`.
+ *
+ *  The window surface must be destroyed before the specified Vulkan instance.
+ *  It is the responsibility of the caller to destroy the window surface.  GLFW
+ *  does not destroy it for you.  Call `vkDestroySurfaceKHR` to destroy the
+ *  surface.
+ *
+ *  @param[in] instance The Vulkan instance to create the surface in.
+ *  @param[in] window The window to create the surface for.
+ *  @param[in] allocator The allocator to use, or `NULL` to use the default
+ *  allocator.
+ *  @param[out] surface Where to store the handle of the surface.  This is set
+ *  to `VK_NULL_HANDLE` if an error occurred.
+ *  @return `VK_SUCCESS` if successful, or a Vulkan error code if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_API_UNAVAILABLE, @ref GLFW_PLATFORM_ERROR and @ref GLFW_INVALID_VALUE
+ *
+ *  @remark If an error occurs before the creation call is made, GLFW returns
+ *  the Vulkan error code most appropriate for the error.  Appropriate use of
+ *  @ref glfwVulkanSupported and @ref glfwGetRequiredInstanceExtensions should
+ *  eliminate almost all occurrences of these errors.
+ *
+ *  @remark @macos GLFW prefers the `VK_EXT_metal_surface` extension, with the
+ *  `VK_MVK_macos_surface` extension as a fallback.  The name of the selected
+ *  extension, if any, is included in the array returned by @ref
+ *  glfwGetRequiredInstanceExtensions.
+ *
+ *  @remark @macos This function creates and sets a `CAMetalLayer` instance for
+ *  the window content view, which is required for MoltenVK to function.
+ *
+ *  @remark @x11 By default GLFW prefers the `VK_KHR_xcb_surface` extension,
+ *  with the `VK_KHR_xlib_surface` extension as a fallback.  You can make
+ *  `VK_KHR_xlib_surface` the preferred extension by setting the
+ *  [GLFW_X11_XCB_VULKAN_SURFACE](@ref GLFW_X11_XCB_VULKAN_SURFACE_hint) init
+ *  hint.  The name of the selected extension, if any, is included in the array
+ *  returned by @ref glfwGetRequiredInstanceExtensions.
+ *
+ *  @thread_safety This function may be called from any thread.  For
+ *  synchronization details of Vulkan objects, see the Vulkan specification.
+ *
+ *  @sa @ref vulkan_surface
+ *  @sa @ref glfwGetRequiredInstanceExtensions
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup vulkan
+ */
+GLFWAPI VkResult glfwCreateWindowSurface(VkInstance instance, GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
+
+#endif /*VK_VERSION_1_0*/
+
+
+/*************************************************************************
+ * Global definition cleanup
+ *************************************************************************/
+
+/* ------------------- BEGIN SYSTEM/COMPILER SPECIFIC -------------------- */
+
+#ifdef GLFW_WINGDIAPI_DEFINED
+ #undef WINGDIAPI
+ #undef GLFW_WINGDIAPI_DEFINED
+#endif
+
+#ifdef GLFW_CALLBACK_DEFINED
+ #undef CALLBACK
+ #undef GLFW_CALLBACK_DEFINED
+#endif
+
+/* Some OpenGL related headers need GLAPIENTRY, but it is unconditionally
+ * defined by some gl.h variants (OpenBSD) so define it after if needed.
+ */
+#ifndef GLAPIENTRY
+ #define GLAPIENTRY APIENTRY
+ #define GLFW_GLAPIENTRY_DEFINED
+#endif
+
+/* -------------------- END SYSTEM/COMPILER SPECIFIC --------------------- */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _glfw3_h_ */
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/include/GLFW/glfw3native.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/include/GLFW/glfw3native.h
new file mode 100644
index 000000000000..011b239c8c2a
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/include/GLFW/glfw3native.h
@@ -0,0 +1,663 @@
+/*************************************************************************
+ * GLFW 3.5 - www.glfw.org
+ * A library for OpenGL, window and input
+ *------------------------------------------------------------------------
+ * Copyright (c) 2002-2006 Marcus Geelnard
+ * Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would
+ *    be appreciated but is not required.
+ *
+ * 2. Altered source versions must be plainly marked as such, and must not
+ *    be misrepresented as being the original software.
+ *
+ * 3. This notice may not be removed or altered from any source
+ *    distribution.
+ *
+ *************************************************************************/
+
+#ifndef _glfw3_native_h_
+#define _glfw3_native_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*************************************************************************
+ * Doxygen documentation
+ *************************************************************************/
+
+/*! @file glfw3native.h
+ *  @brief The header of the native access functions.
+ *
+ *  This is the header file of the native access functions.  See @ref native for
+ *  more information.
+ */
+/*! @defgroup native Native access
+ *  @brief Functions related to accessing native handles.
+ *
+ *  **By using the native access functions you assert that you know what you're
+ *  doing and how to fix problems caused by using them.  If you don't, you
+ *  shouldn't be using them.**
+ *
+ *  Before the inclusion of @ref glfw3native.h, you may define zero or more
+ *  window system API macro and zero or more context creation API macros.
+ *
+ *  The chosen backends must match those the library was compiled for.  Failure
+ *  to do this will cause a link-time error.
+ *
+ *  The available window API macros are:
+ *  * `GLFW_EXPOSE_NATIVE_WIN32`
+ *  * `GLFW_EXPOSE_NATIVE_COCOA`
+ *  * `GLFW_EXPOSE_NATIVE_X11`
+ *  * `GLFW_EXPOSE_NATIVE_WAYLAND`
+ *
+ *  The available context API macros are:
+ *  * `GLFW_EXPOSE_NATIVE_WGL`
+ *  * `GLFW_EXPOSE_NATIVE_NSGL`
+ *  * `GLFW_EXPOSE_NATIVE_GLX`
+ *  * `GLFW_EXPOSE_NATIVE_EGL`
+ *  * `GLFW_EXPOSE_NATIVE_OSMESA`
+ *
+ *  These macros select which of the native access functions that are declared
+ *  and which platform-specific headers to include.  It is then up your (by
+ *  definition platform-specific) code to handle which of these should be
+ *  defined.
+ *
+ *  If you do not want the platform-specific headers to be included, define
+ *  `GLFW_NATIVE_INCLUDE_NONE` before including the @ref glfw3native.h header.
+ *
+ *  @code
+ *  #define GLFW_EXPOSE_NATIVE_WIN32
+ *  #define GLFW_EXPOSE_NATIVE_WGL
+ *  #define GLFW_NATIVE_INCLUDE_NONE
+ *  #include <GLFW/glfw3native.h>
+ *  @endcode
+ */
+
+
+/*************************************************************************
+ * System headers and types
+ *************************************************************************/
+
+#if !defined(GLFW_NATIVE_INCLUDE_NONE)
+
+ #if defined(GLFW_EXPOSE_NATIVE_WIN32) || defined(GLFW_EXPOSE_NATIVE_WGL)
+  /* This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
+   * example to allow applications to correctly declare a GL_KHR_debug callback)
+   * but windows.h assumes no one will define APIENTRY before it does
+   */
+  #if defined(GLFW_APIENTRY_DEFINED)
+   #undef APIENTRY
+   #undef GLFW_APIENTRY_DEFINED
+  #endif
+  #include <windows.h>
+ #endif
+
+ #if defined(GLFW_EXPOSE_NATIVE_COCOA) || defined(GLFW_EXPOSE_NATIVE_NSGL)
+  #if defined(__OBJC__)
+   #import <Cocoa/Cocoa.h>
+  #else
+   #include <ApplicationServices/ApplicationServices.h>
+   #include <objc/objc.h>
+  #endif
+ #endif
+
+ #if defined(GLFW_EXPOSE_NATIVE_X11) || defined(GLFW_EXPOSE_NATIVE_GLX)
+  #include <X11/Xlib.h>
+  #include <X11/extensions/Xrandr.h>
+ #endif
+
+ #if defined(GLFW_EXPOSE_NATIVE_WAYLAND)
+  #include <wayland-client.h>
+ #endif
+
+ #if defined(GLFW_EXPOSE_NATIVE_WGL)
+  /* WGL is declared by windows.h */
+ #endif
+ #if defined(GLFW_EXPOSE_NATIVE_NSGL)
+  /* NSGL is declared by Cocoa.h */
+ #endif
+ #if defined(GLFW_EXPOSE_NATIVE_GLX)
+  /* This is a workaround for the fact that glfw3.h defines GLAPIENTRY because by
+   * default it also acts as an OpenGL header
+   * However, glx.h will include gl.h, which will define it unconditionally
+   */
+  #if defined(GLFW_GLAPIENTRY_DEFINED)
+   #undef GLAPIENTRY
+   #undef GLFW_GLAPIENTRY_DEFINED
+  #endif
+  #include <GL/glx.h>
+ #endif
+ #if defined(GLFW_EXPOSE_NATIVE_EGL)
+  #include <EGL/egl.h>
+ #endif
+ #if defined(GLFW_EXPOSE_NATIVE_OSMESA)
+  /* This is a workaround for the fact that glfw3.h defines GLAPIENTRY because by
+   * default it also acts as an OpenGL header
+   * However, osmesa.h will include gl.h, which will define it unconditionally
+   */
+  #if defined(GLFW_GLAPIENTRY_DEFINED)
+   #undef GLAPIENTRY
+   #undef GLFW_GLAPIENTRY_DEFINED
+  #endif
+  #include <GL/osmesa.h>
+ #endif
+
+#endif /*GLFW_NATIVE_INCLUDE_NONE*/
+
+
+/*************************************************************************
+ * Functions
+ *************************************************************************/
+
+#if defined(GLFW_EXPOSE_NATIVE_WIN32)
+/*! @brief Returns the adapter device name of the specified monitor.
+ *
+ *  @return The UTF-8 encoded adapter device name (for example `\\.\DISPLAY1`)
+ *  of the specified monitor, or `NULL` if an [error](@ref error_handling)
+ *  occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup native
+ */
+GLFWAPI const char* glfwGetWin32Adapter(GLFWmonitor* monitor);
+
+/*! @brief Returns the display device name of the specified monitor.
+ *
+ *  @return The UTF-8 encoded display device name (for example
+ *  `\\.\DISPLAY1\Monitor0`) of the specified monitor, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup native
+ */
+GLFWAPI const char* glfwGetWin32Monitor(GLFWmonitor* monitor);
+
+/*! @brief Returns the `HWND` of the specified window.
+ *
+ *  @return The `HWND` of the specified window, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @remark The `HDC` associated with the window can be queried with the
+ *  [GetDC](https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getdc)
+ *  function.
+ *  @code
+ *  HDC dc = GetDC(glfwGetWin32Window(window));
+ *  @endcode
+ *  This DC is private and does not need to be released.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI HWND glfwGetWin32Window(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_WGL)
+/*! @brief Returns the `HGLRC` of the specified window.
+ *
+ *  @return The `HGLRC` of the specified window, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_PLATFORM_UNAVAILABLE and @ref GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @remark The `HDC` associated with the window can be queried with the
+ *  [GetDC](https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getdc)
+ *  function.
+ *  @code
+ *  HDC dc = GetDC(glfwGetWin32Window(window));
+ *  @endcode
+ *  This DC is private and does not need to be released.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_COCOA)
+/*! @brief Returns the `CGDirectDisplayID` of the specified monitor.
+ *
+ *  @return The `CGDirectDisplayID` of the specified monitor, or
+ *  `kCGNullDirectDisplay` if an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup native
+ */
+GLFWAPI CGDirectDisplayID glfwGetCocoaMonitor(GLFWmonitor* monitor);
+
+/*! @brief Returns the `NSWindow` of the specified window.
+ *
+ *  @return The `NSWindow` of the specified window, or `nil` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI id glfwGetCocoaWindow(GLFWwindow* window);
+
+/*! @brief Returns the `NSView` of the specified window.
+ *
+ *  @return The `NSView` of the specified window, or `nil` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.4.
+ *
+ *  @ingroup native
+ */
+GLFWAPI id glfwGetCocoaView(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_NSGL)
+/*! @brief Returns the `NSOpenGLContext` of the specified window.
+ *
+ *  @return The `NSOpenGLContext` of the specified window, or `nil` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_PLATFORM_UNAVAILABLE and @ref GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI id glfwGetNSGLContext(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_X11)
+/*! @brief Returns the `Display` used by GLFW.
+ *
+ *  @return The `Display` used by GLFW, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI Display* glfwGetX11Display(void);
+
+/*! @brief Returns the `RRCrtc` of the specified monitor.
+ *
+ *  @return The `RRCrtc` of the specified monitor, or `None` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup native
+ */
+GLFWAPI RRCrtc glfwGetX11Adapter(GLFWmonitor* monitor);
+
+/*! @brief Returns the `RROutput` of the specified monitor.
+ *
+ *  @return The `RROutput` of the specified monitor, or `None` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup native
+ */
+GLFWAPI RROutput glfwGetX11Monitor(GLFWmonitor* monitor);
+
+/*! @brief Returns the `Window` of the specified window.
+ *
+ *  @return The `Window` of the specified window, or `None` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI Window glfwGetX11Window(GLFWwindow* window);
+
+/*! @brief Sets the current primary selection to the specified string.
+ *
+ *  @param[in] string A UTF-8 encoded string.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_PLATFORM_UNAVAILABLE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The specified string is copied before this function
+ *  returns.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref clipboard
+ *  @sa glfwGetX11SelectionString
+ *  @sa glfwSetClipboardString
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup native
+ */
+GLFWAPI void glfwSetX11SelectionString(const char* string);
+
+/*! @brief Returns the contents of the current primary selection as a string.
+ *
+ *  If the selection is empty or if its contents cannot be converted, `NULL`
+ *  is returned and a @ref GLFW_FORMAT_UNAVAILABLE error is generated.
+ *
+ *  @return The contents of the selection as a UTF-8 encoded string, or `NULL`
+ *  if an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_PLATFORM_UNAVAILABLE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW. You
+ *  should not free it yourself. It is valid until the next call to @ref
+ *  glfwGetX11SelectionString or @ref glfwSetX11SelectionString, or until the
+ *  library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref clipboard
+ *  @sa glfwSetX11SelectionString
+ *  @sa glfwGetClipboardString
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup native
+ */
+GLFWAPI const char* glfwGetX11SelectionString(void);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_GLX)
+/*! @brief Returns the `GLXContext` of the specified window.
+ *
+ *  @return The `GLXContext` of the specified window, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_WINDOW_CONTEXT and @ref GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* window);
+
+/*! @brief Returns the `GLXWindow` of the specified window.
+ *
+ *  @return The `GLXWindow` of the specified window, or `None` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_WINDOW_CONTEXT and @ref GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI GLXWindow glfwGetGLXWindow(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_WAYLAND)
+/*! @brief Returns the `struct wl_display*` used by GLFW.
+ *
+ *  @return The `struct wl_display*` used by GLFW, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI struct wl_display* glfwGetWaylandDisplay(void);
+
+/*! @brief Returns the `struct wl_output*` of the specified monitor.
+ *
+ *  @return The `struct wl_output*` of the specified monitor, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI struct wl_output* glfwGetWaylandMonitor(GLFWmonitor* monitor);
+
+/*! @brief Returns the main `struct wl_surface*` of the specified window.
+ *
+ *  @return The main `struct wl_surface*` of the specified window, or `NULL` if
+ *  an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI struct wl_surface* glfwGetWaylandWindow(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_EGL)
+/*! @brief Returns the `EGLDisplay` used by GLFW.
+ *
+ *  @return The `EGLDisplay` used by GLFW, or `EGL_NO_DISPLAY` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @remark Because EGL is initialized on demand, this function will return
+ *  `EGL_NO_DISPLAY` until the first context has been created via EGL.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI EGLDisplay glfwGetEGLDisplay(void);
+
+/*! @brief Returns the `EGLContext` of the specified window.
+ *
+ *  @return The `EGLContext` of the specified window, or `EGL_NO_CONTEXT` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI EGLContext glfwGetEGLContext(GLFWwindow* window);
+
+/*! @brief Returns the `EGLSurface` of the specified window.
+ *
+ *  @return The `EGLSurface` of the specified window, or `EGL_NO_SURFACE` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI EGLSurface glfwGetEGLSurface(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_OSMESA)
+/*! @brief Retrieves the color buffer associated with the specified window.
+ *
+ *  @param[in] window The window whose color buffer to retrieve.
+ *  @param[out] width Where to store the width of the color buffer, or `NULL`.
+ *  @param[out] height Where to store the height of the color buffer, or `NULL`.
+ *  @param[out] format Where to store the OSMesa pixel format of the color
+ *  buffer, or `NULL`.
+ *  @param[out] buffer Where to store the address of the color buffer, or
+ *  `NULL`.
+ *  @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup native
+ */
+GLFWAPI int glfwGetOSMesaColorBuffer(GLFWwindow* window, int* width, int* height, int* format, void** buffer);
+
+/*! @brief Retrieves the depth buffer associated with the specified window.
+ *
+ *  @param[in] window The window whose depth buffer to retrieve.
+ *  @param[out] width Where to store the width of the depth buffer, or `NULL`.
+ *  @param[out] height Where to store the height of the depth buffer, or `NULL`.
+ *  @param[out] bytesPerValue Where to store the number of bytes per depth
+ *  buffer element, or `NULL`.
+ *  @param[out] buffer Where to store the address of the depth buffer, or
+ *  `NULL`.
+ *  @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup native
+ */
+GLFWAPI int glfwGetOSMesaDepthBuffer(GLFWwindow* window, int* width, int* height, int* bytesPerValue, void** buffer);
+
+/*! @brief Returns the `OSMesaContext` of the specified window.
+ *
+ *  @return The `OSMesaContext` of the specified window, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup native
+ */
+GLFWAPI OSMesaContext glfwGetOSMesaContext(GLFWwindow* window);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _glfw3_native_h_ */
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_init.m b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_init.m
new file mode 100644
index 000000000000..15dc4ec4c15e
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_init.m
@@ -0,0 +1,695 @@
+//========================================================================
+// GLFW 3.5 macOS - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_COCOA)
+
+#include <sys/param.h> // For MAXPATHLEN
+
+// Needed for _NSGetProgname
+#include <crt_externs.h>
+
+// Change to our application bundle's resources directory, if present
+//
+static void changeToResourcesDirectory(void)
+{
+    char resourcesPath[MAXPATHLEN];
+
+    CFBundleRef bundle = CFBundleGetMainBundle();
+    if (!bundle)
+        return;
+
+    CFURLRef resourcesURL = CFBundleCopyResourcesDirectoryURL(bundle);
+
+    CFStringRef last = CFURLCopyLastPathComponent(resourcesURL);
+    if (CFStringCompare(CFSTR("Resources"), last, 0) != kCFCompareEqualTo)
+    {
+        CFRelease(last);
+        CFRelease(resourcesURL);
+        return;
+    }
+
+    CFRelease(last);
+
+    if (!CFURLGetFileSystemRepresentation(resourcesURL,
+                                          true,
+                                          (UInt8*) resourcesPath,
+                                          MAXPATHLEN))
+    {
+        CFRelease(resourcesURL);
+        return;
+    }
+
+    CFRelease(resourcesURL);
+
+    chdir(resourcesPath);
+}
+
+// Set up the menu bar (manually)
+// This is nasty, nasty stuff -- calls to undocumented semi-private APIs that
+// could go away at any moment, lots of stuff that really should be
+// localize(d|able), etc.  Add a nib to save us this horror.
+//
+static void createMenuBar(void)
+{
+    NSString* appName = nil;
+    NSDictionary* bundleInfo = [[NSBundle mainBundle] infoDictionary];
+    NSString* nameKeys[] =
+    {
+        @"CFBundleDisplayName",
+        @"CFBundleName",
+        @"CFBundleExecutable",
+    };
+
+    // Try to figure out what the calling application is called
+
+    for (size_t i = 0;  i < sizeof(nameKeys) / sizeof(nameKeys[0]);  i++)
+    {
+        id name = bundleInfo[nameKeys[i]];
+        if (name &&
+            [name isKindOfClass:[NSString class]] &&
+            ![name isEqualToString:@""])
+        {
+            appName = name;
+            break;
+        }
+    }
+
+    if (!appName)
+    {
+        char** progname = _NSGetProgname();
+        if (progname && *progname)
+            appName = @(*progname);
+        else
+            appName = @"GLFW Application";
+    }
+
+    NSMenu* bar = [[NSMenu alloc] init];
+    [NSApp setMainMenu:bar];
+
+    NSMenuItem* appMenuItem =
+        [bar addItemWithTitle:@"" action:NULL keyEquivalent:@""];
+    NSMenu* appMenu = [[NSMenu alloc] init];
+    [appMenuItem setSubmenu:appMenu];
+
+    [appMenu addItemWithTitle:[NSString stringWithFormat:@"About %@", appName]
+                       action:@selector(orderFrontStandardAboutPanel:)
+                keyEquivalent:@""];
+    [appMenu addItem:[NSMenuItem separatorItem]];
+    NSMenu* servicesMenu = [[NSMenu alloc] init];
+    [NSApp setServicesMenu:servicesMenu];
+    [[appMenu addItemWithTitle:@"Services"
+                       action:NULL
+                keyEquivalent:@""] setSubmenu:servicesMenu];
+    [servicesMenu release];
+    [appMenu addItem:[NSMenuItem separatorItem]];
+    [appMenu addItemWithTitle:[NSString stringWithFormat:@"Hide %@", appName]
+                       action:@selector(hide:)
+                keyEquivalent:@"h"];
+    [[appMenu addItemWithTitle:@"Hide Others"
+                       action:@selector(hideOtherApplications:)
+                keyEquivalent:@"h"]
+        setKeyEquivalentModifierMask:NSEventModifierFlagOption | NSEventModifierFlagCommand];
+    [appMenu addItemWithTitle:@"Show All"
+                       action:@selector(unhideAllApplications:)
+                keyEquivalent:@""];
+    [appMenu addItem:[NSMenuItem separatorItem]];
+    [appMenu addItemWithTitle:[NSString stringWithFormat:@"Quit %@", appName]
+                       action:@selector(terminate:)
+                keyEquivalent:@"q"];
+
+    NSMenuItem* windowMenuItem =
+        [bar addItemWithTitle:@"" action:NULL keyEquivalent:@""];
+    [bar release];
+    NSMenu* windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
+    [NSApp setWindowsMenu:windowMenu];
+    [windowMenuItem setSubmenu:windowMenu];
+
+    [windowMenu addItemWithTitle:@"Minimize"
+                          action:@selector(performMiniaturize:)
+                   keyEquivalent:@"m"];
+    [windowMenu addItemWithTitle:@"Zoom"
+                          action:@selector(performZoom:)
+                   keyEquivalent:@""];
+    [windowMenu addItem:[NSMenuItem separatorItem]];
+    [windowMenu addItemWithTitle:@"Bring All to Front"
+                          action:@selector(arrangeInFront:)
+                   keyEquivalent:@""];
+
+    // TODO: Make this appear at the bottom of the menu (for consistency)
+    [windowMenu addItem:[NSMenuItem separatorItem]];
+    [[windowMenu addItemWithTitle:@"Enter Full Screen"
+                           action:@selector(toggleFullScreen:)
+                    keyEquivalent:@"f"]
+     setKeyEquivalentModifierMask:NSEventModifierFlagControl | NSEventModifierFlagCommand];
+
+    // Prior to Snow Leopard, we need to use this oddly-named semi-private API
+    // to get the application menu working properly.
+    SEL setAppleMenuSelector = NSSelectorFromString(@"setAppleMenu:");
+    [NSApp performSelector:setAppleMenuSelector withObject:appMenu];
+}
+
+// Create key code translation tables
+//
+static void createKeyTables(void)
+{
+    memset(_glfw.ns.keycodes, -1, sizeof(_glfw.ns.keycodes));
+    memset(_glfw.ns.scancodes, -1, sizeof(_glfw.ns.scancodes));
+
+    _glfw.ns.keycodes[0x1D] = GLFW_KEY_0;
+    _glfw.ns.keycodes[0x12] = GLFW_KEY_1;
+    _glfw.ns.keycodes[0x13] = GLFW_KEY_2;
+    _glfw.ns.keycodes[0x14] = GLFW_KEY_3;
+    _glfw.ns.keycodes[0x15] = GLFW_KEY_4;
+    _glfw.ns.keycodes[0x17] = GLFW_KEY_5;
+    _glfw.ns.keycodes[0x16] = GLFW_KEY_6;
+    _glfw.ns.keycodes[0x1A] = GLFW_KEY_7;
+    _glfw.ns.keycodes[0x1C] = GLFW_KEY_8;
+    _glfw.ns.keycodes[0x19] = GLFW_KEY_9;
+    _glfw.ns.keycodes[0x00] = GLFW_KEY_A;
+    _glfw.ns.keycodes[0x0B] = GLFW_KEY_B;
+    _glfw.ns.keycodes[0x08] = GLFW_KEY_C;
+    _glfw.ns.keycodes[0x02] = GLFW_KEY_D;
+    _glfw.ns.keycodes[0x0E] = GLFW_KEY_E;
+    _glfw.ns.keycodes[0x03] = GLFW_KEY_F;
+    _glfw.ns.keycodes[0x05] = GLFW_KEY_G;
+    _glfw.ns.keycodes[0x04] = GLFW_KEY_H;
+    _glfw.ns.keycodes[0x22] = GLFW_KEY_I;
+    _glfw.ns.keycodes[0x26] = GLFW_KEY_J;
+    _glfw.ns.keycodes[0x28] = GLFW_KEY_K;
+    _glfw.ns.keycodes[0x25] = GLFW_KEY_L;
+    _glfw.ns.keycodes[0x2E] = GLFW_KEY_M;
+    _glfw.ns.keycodes[0x2D] = GLFW_KEY_N;
+    _glfw.ns.keycodes[0x1F] = GLFW_KEY_O;
+    _glfw.ns.keycodes[0x23] = GLFW_KEY_P;
+    _glfw.ns.keycodes[0x0C] = GLFW_KEY_Q;
+    _glfw.ns.keycodes[0x0F] = GLFW_KEY_R;
+    _glfw.ns.keycodes[0x01] = GLFW_KEY_S;
+    _glfw.ns.keycodes[0x11] = GLFW_KEY_T;
+    _glfw.ns.keycodes[0x20] = GLFW_KEY_U;
+    _glfw.ns.keycodes[0x09] = GLFW_KEY_V;
+    _glfw.ns.keycodes[0x0D] = GLFW_KEY_W;
+    _glfw.ns.keycodes[0x07] = GLFW_KEY_X;
+    _glfw.ns.keycodes[0x10] = GLFW_KEY_Y;
+    _glfw.ns.keycodes[0x06] = GLFW_KEY_Z;
+
+    _glfw.ns.keycodes[0x27] = GLFW_KEY_APOSTROPHE;
+    _glfw.ns.keycodes[0x2A] = GLFW_KEY_BACKSLASH;
+    _glfw.ns.keycodes[0x2B] = GLFW_KEY_COMMA;
+    _glfw.ns.keycodes[0x18] = GLFW_KEY_EQUAL;
+    _glfw.ns.keycodes[0x32] = GLFW_KEY_GRAVE_ACCENT;
+    _glfw.ns.keycodes[0x21] = GLFW_KEY_LEFT_BRACKET;
+    _glfw.ns.keycodes[0x1B] = GLFW_KEY_MINUS;
+    _glfw.ns.keycodes[0x2F] = GLFW_KEY_PERIOD;
+    _glfw.ns.keycodes[0x1E] = GLFW_KEY_RIGHT_BRACKET;
+    _glfw.ns.keycodes[0x29] = GLFW_KEY_SEMICOLON;
+    _glfw.ns.keycodes[0x2C] = GLFW_KEY_SLASH;
+    _glfw.ns.keycodes[0x0A] = GLFW_KEY_WORLD_1;
+
+    _glfw.ns.keycodes[0x33] = GLFW_KEY_BACKSPACE;
+    _glfw.ns.keycodes[0x39] = GLFW_KEY_CAPS_LOCK;
+    _glfw.ns.keycodes[0x75] = GLFW_KEY_DELETE;
+    _glfw.ns.keycodes[0x7D] = GLFW_KEY_DOWN;
+    _glfw.ns.keycodes[0x77] = GLFW_KEY_END;
+    _glfw.ns.keycodes[0x24] = GLFW_KEY_ENTER;
+    _glfw.ns.keycodes[0x35] = GLFW_KEY_ESCAPE;
+    _glfw.ns.keycodes[0x7A] = GLFW_KEY_F1;
+    _glfw.ns.keycodes[0x78] = GLFW_KEY_F2;
+    _glfw.ns.keycodes[0x63] = GLFW_KEY_F3;
+    _glfw.ns.keycodes[0x76] = GLFW_KEY_F4;
+    _glfw.ns.keycodes[0x60] = GLFW_KEY_F5;
+    _glfw.ns.keycodes[0x61] = GLFW_KEY_F6;
+    _glfw.ns.keycodes[0x62] = GLFW_KEY_F7;
+    _glfw.ns.keycodes[0x64] = GLFW_KEY_F8;
+    _glfw.ns.keycodes[0x65] = GLFW_KEY_F9;
+    _glfw.ns.keycodes[0x6D] = GLFW_KEY_F10;
+    _glfw.ns.keycodes[0x67] = GLFW_KEY_F11;
+    _glfw.ns.keycodes[0x6F] = GLFW_KEY_F12;
+    _glfw.ns.keycodes[0x69] = GLFW_KEY_PRINT_SCREEN;
+    _glfw.ns.keycodes[0x6B] = GLFW_KEY_F14;
+    _glfw.ns.keycodes[0x71] = GLFW_KEY_F15;
+    _glfw.ns.keycodes[0x6A] = GLFW_KEY_F16;
+    _glfw.ns.keycodes[0x40] = GLFW_KEY_F17;
+    _glfw.ns.keycodes[0x4F] = GLFW_KEY_F18;
+    _glfw.ns.keycodes[0x50] = GLFW_KEY_F19;
+    _glfw.ns.keycodes[0x5A] = GLFW_KEY_F20;
+    _glfw.ns.keycodes[0x73] = GLFW_KEY_HOME;
+    _glfw.ns.keycodes[0x72] = GLFW_KEY_INSERT;
+    _glfw.ns.keycodes[0x7B] = GLFW_KEY_LEFT;
+    _glfw.ns.keycodes[0x3A] = GLFW_KEY_LEFT_ALT;
+    _glfw.ns.keycodes[0x3B] = GLFW_KEY_LEFT_CONTROL;
+    _glfw.ns.keycodes[0x38] = GLFW_KEY_LEFT_SHIFT;
+    _glfw.ns.keycodes[0x37] = GLFW_KEY_LEFT_SUPER;
+    _glfw.ns.keycodes[0x6E] = GLFW_KEY_MENU;
+    _glfw.ns.keycodes[0x47] = GLFW_KEY_NUM_LOCK;
+    _glfw.ns.keycodes[0x79] = GLFW_KEY_PAGE_DOWN;
+    _glfw.ns.keycodes[0x74] = GLFW_KEY_PAGE_UP;
+    _glfw.ns.keycodes[0x7C] = GLFW_KEY_RIGHT;
+    _glfw.ns.keycodes[0x3D] = GLFW_KEY_RIGHT_ALT;
+    _glfw.ns.keycodes[0x3E] = GLFW_KEY_RIGHT_CONTROL;
+    _glfw.ns.keycodes[0x3C] = GLFW_KEY_RIGHT_SHIFT;
+    _glfw.ns.keycodes[0x36] = GLFW_KEY_RIGHT_SUPER;
+    _glfw.ns.keycodes[0x31] = GLFW_KEY_SPACE;
+    _glfw.ns.keycodes[0x30] = GLFW_KEY_TAB;
+    _glfw.ns.keycodes[0x7E] = GLFW_KEY_UP;
+
+    _glfw.ns.keycodes[0x52] = GLFW_KEY_KP_0;
+    _glfw.ns.keycodes[0x53] = GLFW_KEY_KP_1;
+    _glfw.ns.keycodes[0x54] = GLFW_KEY_KP_2;
+    _glfw.ns.keycodes[0x55] = GLFW_KEY_KP_3;
+    _glfw.ns.keycodes[0x56] = GLFW_KEY_KP_4;
+    _glfw.ns.keycodes[0x57] = GLFW_KEY_KP_5;
+    _glfw.ns.keycodes[0x58] = GLFW_KEY_KP_6;
+    _glfw.ns.keycodes[0x59] = GLFW_KEY_KP_7;
+    _glfw.ns.keycodes[0x5B] = GLFW_KEY_KP_8;
+    _glfw.ns.keycodes[0x5C] = GLFW_KEY_KP_9;
+    _glfw.ns.keycodes[0x45] = GLFW_KEY_KP_ADD;
+    _glfw.ns.keycodes[0x41] = GLFW_KEY_KP_DECIMAL;
+    _glfw.ns.keycodes[0x4B] = GLFW_KEY_KP_DIVIDE;
+    _glfw.ns.keycodes[0x4C] = GLFW_KEY_KP_ENTER;
+    _glfw.ns.keycodes[0x51] = GLFW_KEY_KP_EQUAL;
+    _glfw.ns.keycodes[0x43] = GLFW_KEY_KP_MULTIPLY;
+    _glfw.ns.keycodes[0x4E] = GLFW_KEY_KP_SUBTRACT;
+
+    for (int scancode = 0;  scancode < 256;  scancode++)
+    {
+        // Store the reverse translation for faster key name lookup
+        if (_glfw.ns.keycodes[scancode] >= 0)
+            _glfw.ns.scancodes[_glfw.ns.keycodes[scancode]] = scancode;
+    }
+}
+
+// Retrieve Unicode data for the current keyboard layout
+//
+static GLFWbool updateUnicodeData(void)
+{
+    if (_glfw.ns.inputSource)
+    {
+        CFRelease(_glfw.ns.inputSource);
+        _glfw.ns.inputSource = NULL;
+        _glfw.ns.unicodeData = nil;
+    }
+
+    _glfw.ns.inputSource = TISCopyCurrentKeyboardLayoutInputSource();
+    if (!_glfw.ns.inputSource)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to retrieve keyboard layout input source");
+        return GLFW_FALSE;
+    }
+
+    _glfw.ns.unicodeData =
+        TISGetInputSourceProperty(_glfw.ns.inputSource,
+                                  kTISPropertyUnicodeKeyLayoutData);
+    if (!_glfw.ns.unicodeData)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to retrieve keyboard layout Unicode data");
+        return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+// Load HIToolbox.framework and the TIS symbols we need from it
+//
+static GLFWbool initializeTIS(void)
+{
+    // This works only because Cocoa has already loaded it properly
+    _glfw.ns.tis.bundle =
+        CFBundleGetBundleWithIdentifier(CFSTR("com.apple.HIToolbox"));
+    if (!_glfw.ns.tis.bundle)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to load HIToolbox.framework");
+        return GLFW_FALSE;
+    }
+
+    CFStringRef* kPropertyUnicodeKeyLayoutData =
+        CFBundleGetDataPointerForName(_glfw.ns.tis.bundle,
+                                      CFSTR("kTISPropertyUnicodeKeyLayoutData"));
+    _glfw.ns.tis.CopyCurrentKeyboardLayoutInputSource =
+        CFBundleGetFunctionPointerForName(_glfw.ns.tis.bundle,
+                                          CFSTR("TISCopyCurrentKeyboardLayoutInputSource"));
+    _glfw.ns.tis.GetInputSourceProperty =
+        CFBundleGetFunctionPointerForName(_glfw.ns.tis.bundle,
+                                          CFSTR("TISGetInputSourceProperty"));
+    _glfw.ns.tis.GetKbdType =
+        CFBundleGetFunctionPointerForName(_glfw.ns.tis.bundle,
+                                          CFSTR("LMGetKbdType"));
+
+    if (!kPropertyUnicodeKeyLayoutData ||
+        !TISCopyCurrentKeyboardLayoutInputSource ||
+        !TISGetInputSourceProperty ||
+        !LMGetKbdType)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to load TIS API symbols");
+        return GLFW_FALSE;
+    }
+
+    _glfw.ns.tis.kPropertyUnicodeKeyLayoutData =
+        *kPropertyUnicodeKeyLayoutData;
+
+    return updateUnicodeData();
+}
+
+@interface GLFWHelper : NSObject
+@end
+
+@implementation GLFWHelper
+
+- (void)selectedKeyboardInputSourceChanged:(NSObject* )object
+{
+    updateUnicodeData();
+}
+
+- (void)doNothing:(id)object
+{
+}
+
+@end // GLFWHelper
+
+@interface GLFWApplicationDelegate : NSObject <NSApplicationDelegate>
+@end
+
+@implementation GLFWApplicationDelegate
+
+- (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
+{
+    for (_GLFWwindow* window = _glfw.windowListHead;  window;  window = window->next)
+        _glfwInputWindowCloseRequest(window);
+
+    return NSTerminateCancel;
+}
+
+- (void)applicationDidChangeScreenParameters:(NSNotification *) notification
+{
+    for (_GLFWwindow* window = _glfw.windowListHead;  window;  window = window->next)
+    {
+        if (window->context.client != GLFW_NO_API)
+            [window->context.nsgl.object update];
+    }
+
+    _glfwPollMonitorsCocoa();
+}
+
+- (void)applicationWillFinishLaunching:(NSNotification *)notification
+{
+    if (_glfw.hints.init.ns.menubar)
+    {
+        // Menu bar setup must go between sharedApplication and finishLaunching
+        // in order to properly emulate the behavior of NSApplicationMain
+
+        if ([[NSBundle mainBundle] pathForResource:@"MainMenu" ofType:@"nib"])
+        {
+            [[NSBundle mainBundle] loadNibNamed:@"MainMenu"
+                                          owner:NSApp
+                                topLevelObjects:&_glfw.ns.nibObjects];
+        }
+        else
+            createMenuBar();
+    }
+}
+
+- (void)applicationDidFinishLaunching:(NSNotification *)notification
+{
+    _glfwPostEmptyEventCocoa();
+    [NSApp stop:nil];
+}
+
+- (void)applicationDidHide:(NSNotification *)notification
+{
+    for (int i = 0;  i < _glfw.monitorCount;  i++)
+        _glfwRestoreVideoModeCocoa(_glfw.monitors[i]);
+}
+
+@end // GLFWApplicationDelegate
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void* _glfwLoadLocalVulkanLoaderCocoa(void)
+{
+    CFBundleRef bundle = CFBundleGetMainBundle();
+    if (!bundle)
+        return NULL;
+
+    CFURLRef frameworksUrl = CFBundleCopyPrivateFrameworksURL(bundle);
+    if (!frameworksUrl)
+        return NULL;
+
+    CFURLRef loaderUrl = CFURLCreateCopyAppendingPathComponent(
+        kCFAllocatorDefault, frameworksUrl, CFSTR("libvulkan.1.dylib"), false);
+    if (!loaderUrl)
+    {
+        CFRelease(frameworksUrl);
+        return NULL;
+    }
+
+    char path[PATH_MAX];
+    void* handle = NULL;
+
+    if (CFURLGetFileSystemRepresentation(loaderUrl, true, (UInt8*) path, sizeof(path) - 1))
+        handle = _glfwPlatformLoadModule(path);
+
+    CFRelease(loaderUrl);
+    CFRelease(frameworksUrl);
+    return handle;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwConnectCocoa(int platformID, _GLFWplatform* platform)
+{
+    const _GLFWplatform cocoa =
+    {
+        .platformID = GLFW_PLATFORM_COCOA,
+        .init = _glfwInitCocoa,
+        .terminate = _glfwTerminateCocoa,
+        .getCursorPos = _glfwGetCursorPosCocoa,
+        .setCursorPos = _glfwSetCursorPosCocoa,
+        .setCursorMode = _glfwSetCursorModeCocoa,
+        .setRawMouseMotion = _glfwSetRawMouseMotionCocoa,
+        .rawMouseMotionSupported = _glfwRawMouseMotionSupportedCocoa,
+        .createCursor = _glfwCreateCursorCocoa,
+        .createStandardCursor = _glfwCreateStandardCursorCocoa,
+        .destroyCursor = _glfwDestroyCursorCocoa,
+        .setCursor = _glfwSetCursorCocoa,
+        .getScancodeName = _glfwGetScancodeNameCocoa,
+        .getKeyScancode = _glfwGetKeyScancodeCocoa,
+        .setClipboardString = _glfwSetClipboardStringCocoa,
+        .getClipboardString = _glfwGetClipboardStringCocoa,
+        .initJoysticks = _glfwInitJoysticksCocoa,
+        .terminateJoysticks = _glfwTerminateJoysticksCocoa,
+        .pollJoystick = _glfwPollJoystickCocoa,
+        .getMappingName = _glfwGetMappingNameCocoa,
+        .updateGamepadGUID = _glfwUpdateGamepadGUIDCocoa,
+        .freeMonitor = _glfwFreeMonitorCocoa,
+        .getMonitorPos = _glfwGetMonitorPosCocoa,
+        .getMonitorContentScale = _glfwGetMonitorContentScaleCocoa,
+        .getMonitorWorkarea = _glfwGetMonitorWorkareaCocoa,
+        .getVideoModes = _glfwGetVideoModesCocoa,
+        .getVideoMode = _glfwGetVideoModeCocoa,
+        .getGammaRamp = _glfwGetGammaRampCocoa,
+        .setGammaRamp = _glfwSetGammaRampCocoa,
+        .createWindow = _glfwCreateWindowCocoa,
+        .destroyWindow = _glfwDestroyWindowCocoa,
+        .setWindowTitle = _glfwSetWindowTitleCocoa,
+        .setWindowIcon = _glfwSetWindowIconCocoa,
+        .getWindowPos = _glfwGetWindowPosCocoa,
+        .setWindowPos = _glfwSetWindowPosCocoa,
+        .getWindowSize = _glfwGetWindowSizeCocoa,
+        .setWindowSize = _glfwSetWindowSizeCocoa,
+        .setWindowSizeLimits = _glfwSetWindowSizeLimitsCocoa,
+        .setWindowAspectRatio = _glfwSetWindowAspectRatioCocoa,
+        .getFramebufferSize = _glfwGetFramebufferSizeCocoa,
+        .getWindowFrameSize = _glfwGetWindowFrameSizeCocoa,
+        .getWindowContentScale = _glfwGetWindowContentScaleCocoa,
+        .iconifyWindow = _glfwIconifyWindowCocoa,
+        .restoreWindow = _glfwRestoreWindowCocoa,
+        .maximizeWindow = _glfwMaximizeWindowCocoa,
+        .showWindow = _glfwShowWindowCocoa,
+        .hideWindow = _glfwHideWindowCocoa,
+        .requestWindowAttention = _glfwRequestWindowAttentionCocoa,
+        .focusWindow = _glfwFocusWindowCocoa,
+        .setWindowMonitor = _glfwSetWindowMonitorCocoa,
+        .windowFocused = _glfwWindowFocusedCocoa,
+        .windowIconified = _glfwWindowIconifiedCocoa,
+        .windowVisible = _glfwWindowVisibleCocoa,
+        .windowMaximized = _glfwWindowMaximizedCocoa,
+        .windowHovered = _glfwWindowHoveredCocoa,
+        .framebufferTransparent = _glfwFramebufferTransparentCocoa,
+        .getWindowOpacity = _glfwGetWindowOpacityCocoa,
+        .setWindowResizable = _glfwSetWindowResizableCocoa,
+        .setWindowDecorated = _glfwSetWindowDecoratedCocoa,
+        .setWindowFloating = _glfwSetWindowFloatingCocoa,
+        .setWindowOpacity = _glfwSetWindowOpacityCocoa,
+        .setWindowMousePassthrough = _glfwSetWindowMousePassthroughCocoa,
+        .pollEvents = _glfwPollEventsCocoa,
+        .waitEvents = _glfwWaitEventsCocoa,
+        .waitEventsTimeout = _glfwWaitEventsTimeoutCocoa,
+        .postEmptyEvent = _glfwPostEmptyEventCocoa,
+        .getEGLPlatform = _glfwGetEGLPlatformCocoa,
+        .getEGLNativeDisplay = _glfwGetEGLNativeDisplayCocoa,
+        .getEGLNativeWindow = _glfwGetEGLNativeWindowCocoa,
+        .getRequiredInstanceExtensions = _glfwGetRequiredInstanceExtensionsCocoa,
+        .getPhysicalDevicePresentationSupport = _glfwGetPhysicalDevicePresentationSupportCocoa,
+        .createWindowSurface = _glfwCreateWindowSurfaceCocoa
+    };
+
+    *platform = cocoa;
+    return GLFW_TRUE;
+}
+
+int _glfwInitCocoa(void)
+{
+    @autoreleasepool {
+
+    _glfw.ns.helper = [[GLFWHelper alloc] init];
+
+    [NSThread detachNewThreadSelector:@selector(doNothing:)
+                             toTarget:_glfw.ns.helper
+                           withObject:nil];
+
+    [NSApplication sharedApplication];
+
+    _glfw.ns.delegate = [[GLFWApplicationDelegate alloc] init];
+    if (_glfw.ns.delegate == nil)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to create application delegate");
+        return GLFW_FALSE;
+    }
+
+    [NSApp setDelegate:_glfw.ns.delegate];
+
+    NSEvent* (^block)(NSEvent*) = ^ NSEvent* (NSEvent* event)
+    {
+        if ([event modifierFlags] & NSEventModifierFlagCommand)
+            [[NSApp keyWindow] sendEvent:event];
+
+        return event;
+    };
+
+    _glfw.ns.keyUpMonitor =
+        [NSEvent addLocalMonitorForEventsMatchingMask:NSEventMaskKeyUp
+                                              handler:block];
+
+    if (_glfw.hints.init.ns.chdir)
+        changeToResourcesDirectory();
+
+    // Press and Hold prevents some keys from emitting repeated characters
+    NSDictionary* defaults = @{@"ApplePressAndHoldEnabled":@NO};
+    [[NSUserDefaults standardUserDefaults] registerDefaults:defaults];
+
+    [[NSNotificationCenter defaultCenter]
+        addObserver:_glfw.ns.helper
+           selector:@selector(selectedKeyboardInputSourceChanged:)
+               name:NSTextInputContextKeyboardSelectionDidChangeNotification
+             object:nil];
+
+    createKeyTables();
+
+    _glfw.ns.eventSource = CGEventSourceCreate(kCGEventSourceStateHIDSystemState);
+    if (!_glfw.ns.eventSource)
+        return GLFW_FALSE;
+
+    CGEventSourceSetLocalEventsSuppressionInterval(_glfw.ns.eventSource, 0.0);
+
+    if (!initializeTIS())
+        return GLFW_FALSE;
+
+    _glfwPollMonitorsCocoa();
+
+    if (![[NSRunningApplication currentApplication] isFinishedLaunching])
+        [NSApp run];
+
+    // In case we are unbundled, make us a proper UI application
+    if (_glfw.hints.init.ns.menubar)
+        [NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
+
+    return GLFW_TRUE;
+
+    } // autoreleasepool
+}
+
+void _glfwTerminateCocoa(void)
+{
+    @autoreleasepool {
+
+    if (_glfw.ns.inputSource)
+    {
+        CFRelease(_glfw.ns.inputSource);
+        _glfw.ns.inputSource = NULL;
+        _glfw.ns.unicodeData = nil;
+    }
+
+    if (_glfw.ns.eventSource)
+    {
+        CFRelease(_glfw.ns.eventSource);
+        _glfw.ns.eventSource = NULL;
+    }
+
+    if (_glfw.ns.delegate)
+    {
+        [NSApp setDelegate:nil];
+        [_glfw.ns.delegate release];
+        _glfw.ns.delegate = nil;
+    }
+
+    if (_glfw.ns.helper)
+    {
+        [[NSNotificationCenter defaultCenter]
+            removeObserver:_glfw.ns.helper
+                      name:NSTextInputContextKeyboardSelectionDidChangeNotification
+                    object:nil];
+        [[NSNotificationCenter defaultCenter]
+            removeObserver:_glfw.ns.helper];
+        [_glfw.ns.helper release];
+        _glfw.ns.helper = nil;
+    }
+
+    if (_glfw.ns.keyUpMonitor)
+        [NSEvent removeMonitor:_glfw.ns.keyUpMonitor];
+
+    _glfw_free(_glfw.ns.clipboardString);
+
+    _glfwTerminateNSGL();
+    _glfwTerminateEGL();
+    _glfwTerminateOSMesa();
+
+    } // autoreleasepool
+}
+
+#endif // _GLFW_COCOA
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_joystick.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_joystick.h
new file mode 100644
index 000000000000..c3a58e23eaca
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_joystick.h
@@ -0,0 +1,49 @@
+//========================================================================
+// GLFW 3.5 Cocoa - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <IOKit/IOKitLib.h>
+#include <IOKit/IOCFPlugIn.h>
+#include <IOKit/hid/IOHIDKeys.h>
+
+#define GLFW_COCOA_JOYSTICK_STATE         _GLFWjoystickNS ns;
+#define GLFW_COCOA_LIBRARY_JOYSTICK_STATE
+
+// Cocoa-specific per-joystick data
+//
+typedef struct _GLFWjoystickNS
+{
+    IOHIDDeviceRef      device;
+    CFMutableArrayRef   axes;
+    CFMutableArrayRef   buttons;
+    CFMutableArrayRef   hats;
+} _GLFWjoystickNS;
+
+GLFWbool _glfwInitJoysticksCocoa(void);
+void _glfwTerminateJoysticksCocoa(void);
+GLFWbool _glfwPollJoystickCocoa(_GLFWjoystick* js, int mode);
+const char* _glfwGetMappingNameCocoa(void);
+void _glfwUpdateGamepadGUIDCocoa(char* guid);
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_joystick.m b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_joystick.m
new file mode 100644
index 000000000000..bb86ad226eb0
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_joystick.m
@@ -0,0 +1,485 @@
+//========================================================================
+// GLFW 3.5 Cocoa - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
+// Copyright (c) 2012 Torsten Walluhn <tw@mad-cad.net>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_COCOA)
+
+#include <unistd.h>
+#include <ctype.h>
+#include <string.h>
+
+#include <mach/mach.h>
+#include <mach/mach_error.h>
+
+#include <CoreFoundation/CoreFoundation.h>
+#include <Kernel/IOKit/hidsystem/IOHIDUsageTables.h>
+
+
+// Joystick element information
+//
+typedef struct _GLFWjoyelementNS
+{
+    IOHIDElementRef native;
+    uint32_t        usage;
+    int             index;
+    long            minimum;
+    long            maximum;
+
+} _GLFWjoyelementNS;
+
+
+// Returns the value of the specified element of the specified joystick
+//
+static long getElementValue(_GLFWjoystick* js, _GLFWjoyelementNS* element)
+{
+    IOHIDValueRef valueRef;
+    long value = 0;
+
+    if (js->ns.device)
+    {
+        if (IOHIDDeviceGetValue(js->ns.device,
+                                element->native,
+                                &valueRef) == kIOReturnSuccess)
+        {
+            value = IOHIDValueGetIntegerValue(valueRef);
+        }
+    }
+
+    return value;
+}
+
+// Comparison function for matching the SDL element order
+//
+static CFComparisonResult compareElements(const void* fp,
+                                          const void* sp,
+                                          void* user)
+{
+    const _GLFWjoyelementNS* fe = fp;
+    const _GLFWjoyelementNS* se = sp;
+    if (fe->usage < se->usage)
+        return kCFCompareLessThan;
+    if (fe->usage > se->usage)
+        return kCFCompareGreaterThan;
+    if (fe->index < se->index)
+        return kCFCompareLessThan;
+    if (fe->index > se->index)
+        return kCFCompareGreaterThan;
+    return kCFCompareEqualTo;
+}
+
+// Removes the specified joystick
+//
+static void closeJoystick(_GLFWjoystick* js)
+{
+    _glfwInputJoystick(js, GLFW_DISCONNECTED);
+
+    for (int i = 0;  i < CFArrayGetCount(js->ns.axes);  i++)
+        _glfw_free((void*) CFArrayGetValueAtIndex(js->ns.axes, i));
+    CFRelease(js->ns.axes);
+
+    for (int i = 0;  i < CFArrayGetCount(js->ns.buttons);  i++)
+        _glfw_free((void*) CFArrayGetValueAtIndex(js->ns.buttons, i));
+    CFRelease(js->ns.buttons);
+
+    for (int i = 0;  i < CFArrayGetCount(js->ns.hats);  i++)
+        _glfw_free((void*) CFArrayGetValueAtIndex(js->ns.hats, i));
+    CFRelease(js->ns.hats);
+
+    _glfwFreeJoystick(js);
+}
+
+// Callback for user-initiated joystick addition
+//
+static void matchCallback(void* context,
+                          IOReturn result,
+                          void* sender,
+                          IOHIDDeviceRef device)
+{
+    int jid;
+    char name[256];
+    char guid[33];
+    CFTypeRef property;
+    uint32_t vendor = 0, product = 0, version = 0;
+    _GLFWjoystick* js;
+    CFMutableArrayRef axes, buttons, hats;
+
+    for (jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        if (_glfw.joysticks[jid].ns.device == device)
+            return;
+    }
+
+    CFArrayRef elements =
+        IOHIDDeviceCopyMatchingElements(device, NULL, kIOHIDOptionsTypeNone);
+
+    // It is reportedly possible for this to fail on macOS 13 Ventura
+    // if the application does not have input monitoring permissions
+    if (!elements)
+        return;
+
+    axes    = CFArrayCreateMutable(NULL, 0, NULL);
+    buttons = CFArrayCreateMutable(NULL, 0, NULL);
+    hats    = CFArrayCreateMutable(NULL, 0, NULL);
+
+    property = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductKey));
+    if (property)
+    {
+        CFStringGetCString(property,
+                           name,
+                           sizeof(name),
+                           kCFStringEncodingUTF8);
+    }
+    else
+        strncpy(name, "Unknown", sizeof(name));
+
+    property = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDVendorIDKey));
+    if (property)
+        CFNumberGetValue(property, kCFNumberSInt32Type, &vendor);
+
+    property = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductIDKey));
+    if (property)
+        CFNumberGetValue(property, kCFNumberSInt32Type, &product);
+
+    property = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDVersionNumberKey));
+    if (property)
+        CFNumberGetValue(property, kCFNumberSInt32Type, &version);
+
+    // Generate a joystick GUID that matches the SDL 2.0.5+ one
+    if (vendor && product)
+    {
+        sprintf(guid, "03000000%02x%02x0000%02x%02x0000%02x%02x0000",
+                (uint8_t) vendor, (uint8_t) (vendor >> 8),
+                (uint8_t) product, (uint8_t) (product >> 8),
+                (uint8_t) version, (uint8_t) (version >> 8));
+    }
+    else
+    {
+        sprintf(guid, "05000000%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x00",
+                name[0], name[1], name[2], name[3],
+                name[4], name[5], name[6], name[7],
+                name[8], name[9], name[10]);
+    }
+
+    for (CFIndex i = 0;  i < CFArrayGetCount(elements);  i++)
+    {
+        IOHIDElementRef native = (IOHIDElementRef)
+            CFArrayGetValueAtIndex(elements, i);
+        if (CFGetTypeID(native) != IOHIDElementGetTypeID())
+            continue;
+
+        const IOHIDElementType type = IOHIDElementGetType(native);
+        if ((type != kIOHIDElementTypeInput_Axis) &&
+            (type != kIOHIDElementTypeInput_Button) &&
+            (type != kIOHIDElementTypeInput_Misc))
+        {
+            continue;
+        }
+
+        CFMutableArrayRef target = NULL;
+
+        const uint32_t usage = IOHIDElementGetUsage(native);
+        const uint32_t page = IOHIDElementGetUsagePage(native);
+        if (page == kHIDPage_GenericDesktop)
+        {
+            switch (usage)
+            {
+                case kHIDUsage_GD_X:
+                case kHIDUsage_GD_Y:
+                case kHIDUsage_GD_Z:
+                case kHIDUsage_GD_Rx:
+                case kHIDUsage_GD_Ry:
+                case kHIDUsage_GD_Rz:
+                case kHIDUsage_GD_Slider:
+                case kHIDUsage_GD_Dial:
+                case kHIDUsage_GD_Wheel:
+                    target = axes;
+                    break;
+                case kHIDUsage_GD_Hatswitch:
+                    target = hats;
+                    break;
+                case kHIDUsage_GD_DPadUp:
+                case kHIDUsage_GD_DPadRight:
+                case kHIDUsage_GD_DPadDown:
+                case kHIDUsage_GD_DPadLeft:
+                case kHIDUsage_GD_SystemMainMenu:
+                case kHIDUsage_GD_Select:
+                case kHIDUsage_GD_Start:
+                    target = buttons;
+                    break;
+            }
+        }
+        else if (page == kHIDPage_Simulation)
+        {
+            switch (usage)
+            {
+                case kHIDUsage_Sim_Accelerator:
+                case kHIDUsage_Sim_Brake:
+                case kHIDUsage_Sim_Throttle:
+                case kHIDUsage_Sim_Rudder:
+                case kHIDUsage_Sim_Steering:
+                    target = axes;
+                    break;
+            }
+        }
+        else if (page == kHIDPage_Button || page == kHIDPage_Consumer)
+            target = buttons;
+
+        if (target)
+        {
+            _GLFWjoyelementNS* element = _glfw_calloc(1, sizeof(_GLFWjoyelementNS));
+            element->native  = native;
+            element->usage   = usage;
+            element->index   = (int) CFArrayGetCount(target);
+            element->minimum = IOHIDElementGetLogicalMin(native);
+            element->maximum = IOHIDElementGetLogicalMax(native);
+            CFArrayAppendValue(target, element);
+        }
+    }
+
+    CFRelease(elements);
+
+    CFArraySortValues(axes, CFRangeMake(0, CFArrayGetCount(axes)),
+                      compareElements, NULL);
+    CFArraySortValues(buttons, CFRangeMake(0, CFArrayGetCount(buttons)),
+                      compareElements, NULL);
+    CFArraySortValues(hats, CFRangeMake(0, CFArrayGetCount(hats)),
+                      compareElements, NULL);
+
+    js = _glfwAllocJoystick(name, guid,
+                            (int) CFArrayGetCount(axes),
+                            (int) CFArrayGetCount(buttons),
+                            (int) CFArrayGetCount(hats));
+
+    js->ns.device  = device;
+    js->ns.axes    = axes;
+    js->ns.buttons = buttons;
+    js->ns.hats    = hats;
+
+    _glfwInputJoystick(js, GLFW_CONNECTED);
+}
+
+// Callback for user-initiated joystick removal
+//
+static void removeCallback(void* context,
+                           IOReturn result,
+                           void* sender,
+                           IOHIDDeviceRef device)
+{
+    for (int jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        if (_glfw.joysticks[jid].connected && _glfw.joysticks[jid].ns.device == device)
+        {
+            closeJoystick(&_glfw.joysticks[jid]);
+            break;
+        }
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwInitJoysticksCocoa(void)
+{
+    CFMutableArrayRef matching;
+    const long usages[] =
+    {
+        kHIDUsage_GD_Joystick,
+        kHIDUsage_GD_GamePad,
+        kHIDUsage_GD_MultiAxisController
+    };
+
+    _glfw.ns.hidManager = IOHIDManagerCreate(kCFAllocatorDefault,
+                                             kIOHIDOptionsTypeNone);
+
+    matching = CFArrayCreateMutable(kCFAllocatorDefault,
+                                    0,
+                                    &kCFTypeArrayCallBacks);
+    if (!matching)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Cocoa: Failed to create array");
+        return GLFW_FALSE;
+    }
+
+    for (size_t i = 0;  i < sizeof(usages) / sizeof(long);  i++)
+    {
+        const long page = kHIDPage_GenericDesktop;
+
+        CFMutableDictionaryRef dict =
+            CFDictionaryCreateMutable(kCFAllocatorDefault,
+                                      0,
+                                      &kCFTypeDictionaryKeyCallBacks,
+                                      &kCFTypeDictionaryValueCallBacks);
+        if (!dict)
+            continue;
+
+        CFNumberRef pageRef = CFNumberCreate(kCFAllocatorDefault,
+                                             kCFNumberLongType,
+                                             &page);
+        CFNumberRef usageRef = CFNumberCreate(kCFAllocatorDefault,
+                                              kCFNumberLongType,
+                                              &usages[i]);
+        if (pageRef && usageRef)
+        {
+            CFDictionarySetValue(dict,
+                                 CFSTR(kIOHIDDeviceUsagePageKey),
+                                 pageRef);
+            CFDictionarySetValue(dict,
+                                 CFSTR(kIOHIDDeviceUsageKey),
+                                 usageRef);
+            CFArrayAppendValue(matching, dict);
+        }
+
+        if (pageRef)
+            CFRelease(pageRef);
+        if (usageRef)
+            CFRelease(usageRef);
+
+        CFRelease(dict);
+    }
+
+    IOHIDManagerSetDeviceMatchingMultiple(_glfw.ns.hidManager, matching);
+    CFRelease(matching);
+
+    IOHIDManagerRegisterDeviceMatchingCallback(_glfw.ns.hidManager,
+                                               &matchCallback, NULL);
+    IOHIDManagerRegisterDeviceRemovalCallback(_glfw.ns.hidManager,
+                                              &removeCallback, NULL);
+    IOHIDManagerScheduleWithRunLoop(_glfw.ns.hidManager,
+                                    CFRunLoopGetMain(),
+                                    kCFRunLoopDefaultMode);
+    IOHIDManagerOpen(_glfw.ns.hidManager, kIOHIDOptionsTypeNone);
+
+    // Execute the run loop once in order to register any initially-attached
+    // joysticks
+    CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, false);
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateJoysticksCocoa(void)
+{
+    for (int jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        if (_glfw.joysticks[jid].connected)
+            closeJoystick(&_glfw.joysticks[jid]);
+    }
+
+    if (_glfw.ns.hidManager)
+    {
+        CFRelease(_glfw.ns.hidManager);
+        _glfw.ns.hidManager = NULL;
+    }
+}
+
+
+GLFWbool _glfwPollJoystickCocoa(_GLFWjoystick* js, int mode)
+{
+    if (mode & _GLFW_POLL_AXES)
+    {
+        for (CFIndex i = 0;  i < CFArrayGetCount(js->ns.axes);  i++)
+        {
+            _GLFWjoyelementNS* axis = (_GLFWjoyelementNS*)
+                CFArrayGetValueAtIndex(js->ns.axes, i);
+
+            const long raw = getElementValue(js, axis);
+            // Perform auto calibration
+            if (raw < axis->minimum)
+                axis->minimum = raw;
+            if (raw > axis->maximum)
+                axis->maximum = raw;
+
+            const long size = axis->maximum - axis->minimum;
+            if (size == 0)
+                _glfwInputJoystickAxis(js, (int) i, 0.f);
+            else
+            {
+                const float value = (2.f * (raw - axis->minimum) / size) - 1.f;
+                _glfwInputJoystickAxis(js, (int) i, value);
+            }
+        }
+    }
+
+    if (mode & _GLFW_POLL_BUTTONS)
+    {
+        for (CFIndex i = 0;  i < CFArrayGetCount(js->ns.buttons);  i++)
+        {
+            _GLFWjoyelementNS* button = (_GLFWjoyelementNS*)
+                CFArrayGetValueAtIndex(js->ns.buttons, i);
+            const char value = getElementValue(js, button) - button->minimum;
+            const int state = (value > 0) ? GLFW_PRESS : GLFW_RELEASE;
+            _glfwInputJoystickButton(js, (int) i, state);
+        }
+
+        for (CFIndex i = 0;  i < CFArrayGetCount(js->ns.hats);  i++)
+        {
+            const int states[9] =
+            {
+                GLFW_HAT_UP,
+                GLFW_HAT_RIGHT_UP,
+                GLFW_HAT_RIGHT,
+                GLFW_HAT_RIGHT_DOWN,
+                GLFW_HAT_DOWN,
+                GLFW_HAT_LEFT_DOWN,
+                GLFW_HAT_LEFT,
+                GLFW_HAT_LEFT_UP,
+                GLFW_HAT_CENTERED
+            };
+
+            _GLFWjoyelementNS* hat = (_GLFWjoyelementNS*)
+                CFArrayGetValueAtIndex(js->ns.hats, i);
+            long state = getElementValue(js, hat) - hat->minimum;
+            if (state < 0 || state > 8)
+                state = 8;
+
+            _glfwInputJoystickHat(js, (int) i, states[state]);
+        }
+    }
+
+    return js->connected;
+}
+
+const char* _glfwGetMappingNameCocoa(void)
+{
+    return "Mac OS X";
+}
+
+void _glfwUpdateGamepadGUIDCocoa(char* guid)
+{
+    if ((strncmp(guid + 4, "000000000000", 12) == 0) &&
+        (strncmp(guid + 20, "000000000000", 12) == 0))
+    {
+        char original[33];
+        strncpy(original, guid, sizeof(original) - 1);
+        sprintf(guid, "03000000%.4s0000%.4s000000000000",
+                original, original + 16);
+    }
+}
+
+#endif // _GLFW_COCOA
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_monitor.m b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_monitor.m
new file mode 100644
index 000000000000..6495e1f3b852
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_monitor.m
@@ -0,0 +1,646 @@
+//========================================================================
+// GLFW 3.5 macOS - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_COCOA)
+
+#include <stdlib.h>
+#include <limits.h>
+#include <math.h>
+#include <assert.h>
+
+#include <IOKit/graphics/IOGraphicsLib.h>
+#include <ApplicationServices/ApplicationServices.h>
+
+
+// Get the name of the specified display, or NULL
+//
+static char* getMonitorName(CGDirectDisplayID displayID, NSScreen* screen)
+{
+    // IOKit doesn't work on Apple Silicon anymore
+    // Luckily, 10.15 introduced -[NSScreen localizedName].
+    // Use it if available, and fall back to IOKit otherwise.
+    if (screen)
+    {
+        if ([screen respondsToSelector:@selector(localizedName)])
+        {
+            NSString* name = [screen valueForKey:@"localizedName"];
+            if (name)
+                return _glfw_strdup([name UTF8String]);
+        }
+    }
+
+    io_iterator_t it;
+    io_service_t service;
+    CFDictionaryRef info;
+
+    if (IOServiceGetMatchingServices(MACH_PORT_NULL,
+                                     IOServiceMatching("IODisplayConnect"),
+                                     &it) != 0)
+    {
+        // This may happen if a desktop Mac is running headless
+        return _glfw_strdup("Display");
+    }
+
+    while ((service = IOIteratorNext(it)) != 0)
+    {
+        info = IODisplayCreateInfoDictionary(service,
+                                             kIODisplayOnlyPreferredName);
+
+        CFNumberRef vendorIDRef =
+            CFDictionaryGetValue(info, CFSTR(kDisplayVendorID));
+        CFNumberRef productIDRef =
+            CFDictionaryGetValue(info, CFSTR(kDisplayProductID));
+        if (!vendorIDRef || !productIDRef)
+        {
+            CFRelease(info);
+            continue;
+        }
+
+        unsigned int vendorID, productID;
+        CFNumberGetValue(vendorIDRef, kCFNumberIntType, &vendorID);
+        CFNumberGetValue(productIDRef, kCFNumberIntType, &productID);
+
+        if (CGDisplayVendorNumber(displayID) == vendorID &&
+            CGDisplayModelNumber(displayID) == productID)
+        {
+            // Info dictionary is used and freed below
+            break;
+        }
+
+        CFRelease(info);
+    }
+
+    IOObjectRelease(it);
+
+    if (!service)
+        return _glfw_strdup("Display");
+
+    CFDictionaryRef names =
+        CFDictionaryGetValue(info, CFSTR(kDisplayProductName));
+
+    CFStringRef nameRef;
+
+    if (!names || !CFDictionaryGetValueIfPresent(names, CFSTR("en_US"),
+                                                 (const void**) &nameRef))
+    {
+        // This may happen if a desktop Mac is running headless
+        CFRelease(info);
+        return _glfw_strdup("Display");
+    }
+
+    const CFIndex size =
+        CFStringGetMaximumSizeForEncoding(CFStringGetLength(nameRef),
+                                          kCFStringEncodingUTF8);
+    char* name = _glfw_calloc(size + 1, 1);
+    CFStringGetCString(nameRef, name, size, kCFStringEncodingUTF8);
+
+    CFRelease(info);
+    return name;
+}
+
+// Check whether the display mode should be included in enumeration
+//
+static GLFWbool modeIsGood(CGDisplayModeRef mode)
+{
+    uint32_t flags = CGDisplayModeGetIOFlags(mode);
+
+    if (!(flags & kDisplayModeValidFlag) || !(flags & kDisplayModeSafeFlag))
+        return GLFW_FALSE;
+    if (flags & kDisplayModeInterlacedFlag)
+        return GLFW_FALSE;
+    if (flags & kDisplayModeStretchedFlag)
+        return GLFW_FALSE;
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED == 101100
+    CFStringRef format = CGDisplayModeCopyPixelEncoding(mode);
+    if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) &&
+        CFStringCompare(format, CFSTR(IO32BitDirectPixels), 0))
+    {
+        CFRelease(format);
+        return GLFW_FALSE;
+    }
+
+    CFRelease(format);
+#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
+    return GLFW_TRUE;
+}
+
+// Convert Core Graphics display mode to GLFW video mode
+//
+static GLFWvidmode vidmodeFromCGDisplayMode(CGDisplayModeRef mode,
+                                            double fallbackRefreshRate)
+{
+    GLFWvidmode result;
+    result.width = (int) CGDisplayModeGetWidth(mode);
+    result.height = (int) CGDisplayModeGetHeight(mode);
+    result.refreshRate = (int) round(CGDisplayModeGetRefreshRate(mode));
+
+    if (result.refreshRate == 0)
+        result.refreshRate = (int) round(fallbackRefreshRate);
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED == 101100
+    CFStringRef format = CGDisplayModeCopyPixelEncoding(mode);
+    if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) == 0)
+    {
+        result.redBits = 5;
+        result.greenBits = 5;
+        result.blueBits = 5;
+    }
+    else
+#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
+    {
+        result.redBits = 8;
+        result.greenBits = 8;
+        result.blueBits = 8;
+    }
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED == 101100
+    CFRelease(format);
+#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
+    return result;
+}
+
+// Starts reservation for display fading
+//
+static CGDisplayFadeReservationToken beginFadeReservation(void)
+{
+    CGDisplayFadeReservationToken token = kCGDisplayFadeReservationInvalidToken;
+
+    if (CGAcquireDisplayFadeReservation(5, &token) == kCGErrorSuccess)
+    {
+        CGDisplayFade(token, 0.3,
+                      kCGDisplayBlendNormal,
+                      kCGDisplayBlendSolidColor,
+                      0.0, 0.0, 0.0,
+                      TRUE);
+    }
+
+    return token;
+}
+
+// Ends reservation for display fading
+//
+static void endFadeReservation(CGDisplayFadeReservationToken token)
+{
+    if (token != kCGDisplayFadeReservationInvalidToken)
+    {
+        CGDisplayFade(token, 0.5,
+                      kCGDisplayBlendSolidColor,
+                      kCGDisplayBlendNormal,
+                      0.0, 0.0, 0.0,
+                      FALSE);
+        CGReleaseDisplayFadeReservation(token);
+    }
+}
+
+// Returns the display refresh rate queried from the I/O registry
+//
+static double getFallbackRefreshRate(CGDirectDisplayID displayID)
+{
+    double refreshRate = 60.0;
+
+    io_iterator_t it;
+    io_service_t service;
+
+    if (IOServiceGetMatchingServices(MACH_PORT_NULL,
+                                     IOServiceMatching("IOFramebuffer"),
+                                     &it) != 0)
+    {
+        return refreshRate;
+    }
+
+    while ((service = IOIteratorNext(it)) != 0)
+    {
+        const CFNumberRef indexRef =
+            IORegistryEntryCreateCFProperty(service,
+                                            CFSTR("IOFramebufferOpenGLIndex"),
+                                            kCFAllocatorDefault,
+                                            kNilOptions);
+        if (!indexRef)
+            continue;
+
+        uint32_t index = 0;
+        CFNumberGetValue(indexRef, kCFNumberIntType, &index);
+        CFRelease(indexRef);
+
+        if (CGOpenGLDisplayMaskToDisplayID(1 << index) != displayID)
+            continue;
+
+        const CFNumberRef clockRef =
+            IORegistryEntryCreateCFProperty(service,
+                                            CFSTR("IOFBCurrentPixelClock"),
+                                            kCFAllocatorDefault,
+                                            kNilOptions);
+        const CFNumberRef countRef =
+            IORegistryEntryCreateCFProperty(service,
+                                            CFSTR("IOFBCurrentPixelCount"),
+                                            kCFAllocatorDefault,
+                                            kNilOptions);
+
+        uint32_t clock = 0, count = 0;
+
+        if (clockRef)
+        {
+            CFNumberGetValue(clockRef, kCFNumberIntType, &clock);
+            CFRelease(clockRef);
+        }
+
+        if (countRef)
+        {
+            CFNumberGetValue(countRef, kCFNumberIntType, &count);
+            CFRelease(countRef);
+        }
+
+        if (clock > 0 && count > 0)
+            refreshRate = clock / (double) count;
+
+        break;
+    }
+
+    IOObjectRelease(it);
+    return refreshRate;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Poll for changes in the set of connected monitors
+//
+void _glfwPollMonitorsCocoa(void)
+{
+    uint32_t displayCount;
+    CGGetOnlineDisplayList(0, NULL, &displayCount);
+    CGDirectDisplayID* displays = _glfw_calloc(displayCount, sizeof(CGDirectDisplayID));
+    CGGetOnlineDisplayList(displayCount, displays, &displayCount);
+
+    for (int i = 0;  i < _glfw.monitorCount;  i++)
+        _glfw.monitors[i]->ns.screen = nil;
+
+    _GLFWmonitor** disconnected = NULL;
+    uint32_t disconnectedCount = _glfw.monitorCount;
+    if (disconnectedCount)
+    {
+        disconnected = _glfw_calloc(_glfw.monitorCount, sizeof(_GLFWmonitor*));
+        memcpy(disconnected,
+               _glfw.monitors,
+               _glfw.monitorCount * sizeof(_GLFWmonitor*));
+    }
+
+    for (uint32_t i = 0;  i < displayCount;  i++)
+    {
+        if (CGDisplayIsAsleep(displays[i]))
+            continue;
+
+        const uint32_t unitNumber = CGDisplayUnitNumber(displays[i]);
+        NSScreen* screen = nil;
+
+        for (screen in [NSScreen screens])
+        {
+            NSNumber* screenNumber = [screen deviceDescription][@"NSScreenNumber"];
+
+            // HACK: Compare unit numbers instead of display IDs to work around
+            //       display replacement on machines with automatic graphics
+            //       switching
+            if (CGDisplayUnitNumber([screenNumber unsignedIntValue]) == unitNumber)
+                break;
+        }
+
+        // HACK: Compare unit numbers instead of display IDs to work around
+        //       display replacement on machines with automatic graphics
+        //       switching
+        uint32_t j;
+        for (j = 0;  j < disconnectedCount;  j++)
+        {
+            if (disconnected[j] && disconnected[j]->ns.unitNumber == unitNumber)
+            {
+                disconnected[j]->ns.screen = screen;
+                disconnected[j] = NULL;
+                break;
+            }
+        }
+
+        if (j < disconnectedCount)
+            continue;
+
+        const CGSize size = CGDisplayScreenSize(displays[i]);
+        char* name = getMonitorName(displays[i], screen);
+        if (!name)
+            continue;
+
+        _GLFWmonitor* monitor = _glfwAllocMonitor(name, size.width, size.height);
+        monitor->ns.displayID  = displays[i];
+        monitor->ns.unitNumber = unitNumber;
+        monitor->ns.screen     = screen;
+
+        _glfw_free(name);
+
+        CGDisplayModeRef mode = CGDisplayCopyDisplayMode(displays[i]);
+        if (CGDisplayModeGetRefreshRate(mode) == 0.0)
+            monitor->ns.fallbackRefreshRate = getFallbackRefreshRate(displays[i]);
+        CGDisplayModeRelease(mode);
+
+        _glfwInputMonitor(monitor, GLFW_CONNECTED, _GLFW_INSERT_LAST);
+    }
+
+    for (uint32_t i = 0;  i < disconnectedCount;  i++)
+    {
+        if (disconnected[i])
+            _glfwInputMonitor(disconnected[i], GLFW_DISCONNECTED, 0);
+    }
+
+    _glfw_free(disconnected);
+    _glfw_free(displays);
+}
+
+// Change the current video mode
+//
+void _glfwSetVideoModeCocoa(_GLFWmonitor* monitor, const GLFWvidmode* desired)
+{
+    GLFWvidmode current;
+    _glfwGetVideoModeCocoa(monitor, &current);
+
+    const GLFWvidmode* best = _glfwChooseVideoMode(monitor, desired);
+    if (_glfwCompareVideoModes(&current, best) == 0)
+        return;
+
+    CFArrayRef modes = CGDisplayCopyAllDisplayModes(monitor->ns.displayID, NULL);
+    const CFIndex count = CFArrayGetCount(modes);
+    CGDisplayModeRef native = NULL;
+
+    for (CFIndex i = 0;  i < count;  i++)
+    {
+        CGDisplayModeRef dm = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);
+        if (!modeIsGood(dm))
+            continue;
+
+        const GLFWvidmode mode =
+            vidmodeFromCGDisplayMode(dm, monitor->ns.fallbackRefreshRate);
+        if (_glfwCompareVideoModes(best, &mode) == 0)
+        {
+            native = dm;
+            break;
+        }
+    }
+
+    if (native)
+    {
+        if (monitor->ns.previousMode == NULL)
+            monitor->ns.previousMode = CGDisplayCopyDisplayMode(monitor->ns.displayID);
+
+        CGDisplayFadeReservationToken token = beginFadeReservation();
+        CGDisplaySetDisplayMode(monitor->ns.displayID, native, NULL);
+        endFadeReservation(token);
+    }
+
+    CFRelease(modes);
+}
+
+// Restore the previously saved (original) video mode
+//
+void _glfwRestoreVideoModeCocoa(_GLFWmonitor* monitor)
+{
+    if (monitor->ns.previousMode)
+    {
+        CGDisplayFadeReservationToken token = beginFadeReservation();
+        CGDisplaySetDisplayMode(monitor->ns.displayID,
+                                monitor->ns.previousMode, NULL);
+        endFadeReservation(token);
+
+        CGDisplayModeRelease(monitor->ns.previousMode);
+        monitor->ns.previousMode = NULL;
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwFreeMonitorCocoa(_GLFWmonitor* monitor)
+{
+}
+
+void _glfwGetMonitorPosCocoa(_GLFWmonitor* monitor, int* xpos, int* ypos)
+{
+    @autoreleasepool {
+
+    const CGRect bounds = CGDisplayBounds(monitor->ns.displayID);
+
+    if (xpos)
+        *xpos = (int) bounds.origin.x;
+    if (ypos)
+        *ypos = (int) bounds.origin.y;
+
+    } // autoreleasepool
+}
+
+void _glfwGetMonitorContentScaleCocoa(_GLFWmonitor* monitor,
+                                      float* xscale, float* yscale)
+{
+    @autoreleasepool {
+
+    if (!monitor->ns.screen)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Cannot query content scale without screen");
+    }
+
+    const NSRect points = [monitor->ns.screen frame];
+    const NSRect pixels = [monitor->ns.screen convertRectToBacking:points];
+
+    if (xscale)
+        *xscale = (float) (pixels.size.width / points.size.width);
+    if (yscale)
+        *yscale = (float) (pixels.size.height / points.size.height);
+
+    } // autoreleasepool
+}
+
+void _glfwGetMonitorWorkareaCocoa(_GLFWmonitor* monitor,
+                                  int* xpos, int* ypos,
+                                  int* width, int* height)
+{
+    @autoreleasepool {
+
+    if (!monitor->ns.screen)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Cannot query workarea without screen");
+    }
+
+    const NSRect frameRect = [monitor->ns.screen visibleFrame];
+
+    if (xpos)
+        *xpos = frameRect.origin.x;
+    if (ypos)
+        *ypos = _glfwTransformYCocoa(frameRect.origin.y + frameRect.size.height - 1);
+    if (width)
+        *width = frameRect.size.width;
+    if (height)
+        *height = frameRect.size.height;
+
+    } // autoreleasepool
+}
+
+GLFWvidmode* _glfwGetVideoModesCocoa(_GLFWmonitor* monitor, int* count)
+{
+    @autoreleasepool {
+
+    *count = 0;
+
+    CFArrayRef modes = CGDisplayCopyAllDisplayModes(monitor->ns.displayID, NULL);
+    const CFIndex found = CFArrayGetCount(modes);
+    GLFWvidmode* result = _glfw_calloc(found, sizeof(GLFWvidmode));
+
+    for (CFIndex i = 0;  i < found;  i++)
+    {
+        CGDisplayModeRef dm = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);
+        if (!modeIsGood(dm))
+            continue;
+
+        const GLFWvidmode mode =
+            vidmodeFromCGDisplayMode(dm, monitor->ns.fallbackRefreshRate);
+        CFIndex j;
+
+        for (j = 0;  j < *count;  j++)
+        {
+            if (_glfwCompareVideoModes(result + j, &mode) == 0)
+                break;
+        }
+
+        // Skip duplicate modes
+        if (j < *count)
+            continue;
+
+        (*count)++;
+        result[*count - 1] = mode;
+    }
+
+    CFRelease(modes);
+    return result;
+
+    } // autoreleasepool
+}
+
+GLFWbool _glfwGetVideoModeCocoa(_GLFWmonitor* monitor, GLFWvidmode *mode)
+{
+    @autoreleasepool {
+
+    CGDisplayModeRef native = CGDisplayCopyDisplayMode(monitor->ns.displayID);
+    if (!native)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Cocoa: Failed to query display mode");
+        return GLFW_FALSE;
+    }
+
+    *mode = vidmodeFromCGDisplayMode(native, monitor->ns.fallbackRefreshRate);
+    CGDisplayModeRelease(native);
+    return GLFW_TRUE;
+
+    } // autoreleasepool
+}
+
+GLFWbool _glfwGetGammaRampCocoa(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
+{
+    @autoreleasepool {
+
+    uint32_t size = CGDisplayGammaTableCapacity(monitor->ns.displayID);
+    CGGammaValue* values = _glfw_calloc(size * 3, sizeof(CGGammaValue));
+
+    CGGetDisplayTransferByTable(monitor->ns.displayID,
+                                size,
+                                values,
+                                values + size,
+                                values + size * 2,
+                                &size);
+
+    _glfwAllocGammaArrays(ramp, size);
+
+    for (uint32_t i = 0; i < size; i++)
+    {
+        ramp->red[i]   = (unsigned short) (values[i] * 65535);
+        ramp->green[i] = (unsigned short) (values[i + size] * 65535);
+        ramp->blue[i]  = (unsigned short) (values[i + size * 2] * 65535);
+    }
+
+    _glfw_free(values);
+    return GLFW_TRUE;
+
+    } // autoreleasepool
+}
+
+void _glfwSetGammaRampCocoa(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
+{
+    @autoreleasepool {
+
+    CGGammaValue* values = _glfw_calloc(ramp->size * 3, sizeof(CGGammaValue));
+
+    for (unsigned int i = 0;  i < ramp->size;  i++)
+    {
+        values[i]                  = ramp->red[i] / 65535.f;
+        values[i + ramp->size]     = ramp->green[i] / 65535.f;
+        values[i + ramp->size * 2] = ramp->blue[i] / 65535.f;
+    }
+
+    CGSetDisplayTransferByTable(monitor->ns.displayID,
+                                ramp->size,
+                                values,
+                                values + ramp->size,
+                                values + ramp->size * 2);
+
+    _glfw_free(values);
+
+    } // autoreleasepool
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI CGDirectDisplayID glfwGetCocoaMonitor(GLFWmonitor* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(kCGNullDirectDisplay);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_COCOA)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "Cocoa: Platform not initialized");
+        return kCGNullDirectDisplay;
+    }
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    return monitor->ns.displayID;
+}
+
+#endif // _GLFW_COCOA
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_platform.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_platform.h
new file mode 100644
index 000000000000..4d1d66ae03f9
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_platform.h
@@ -0,0 +1,302 @@
+//========================================================================
+// GLFW 3.5 macOS - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <stdint.h>
+
+#include <Carbon/Carbon.h>
+#include <IOKit/hid/IOHIDLib.h>
+
+// NOTE: All of NSGL was deprecated in the 10.14 SDK
+//       This disables the pointless warnings for every symbol we use
+#ifndef GL_SILENCE_DEPRECATION
+#define GL_SILENCE_DEPRECATION
+#endif
+
+#if defined(__OBJC__)
+#import <Cocoa/Cocoa.h>
+#else
+typedef void* id;
+#endif
+
+// NOTE: Many Cocoa enum values have been renamed and we need to build across
+//       SDK versions where one is unavailable or deprecated.
+//       We use the newer names in code and replace them with the older names if
+//       the base SDK does not provide the newer names.
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED < 101400
+ #define NSOpenGLContextParameterSwapInterval NSOpenGLCPSwapInterval
+ #define NSOpenGLContextParameterSurfaceOpacity NSOpenGLCPSurfaceOpacity
+#endif
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED < 101200
+ #define NSBitmapFormatAlphaNonpremultiplied NSAlphaNonpremultipliedBitmapFormat
+ #define NSEventMaskAny NSAnyEventMask
+ #define NSEventMaskKeyUp NSKeyUpMask
+ #define NSEventModifierFlagCapsLock NSAlphaShiftKeyMask
+ #define NSEventModifierFlagCommand NSCommandKeyMask
+ #define NSEventModifierFlagControl NSControlKeyMask
+ #define NSEventModifierFlagDeviceIndependentFlagsMask NSDeviceIndependentModifierFlagsMask
+ #define NSEventModifierFlagOption NSAlternateKeyMask
+ #define NSEventModifierFlagShift NSShiftKeyMask
+ #define NSEventTypeApplicationDefined NSApplicationDefined
+ #define NSWindowStyleMaskBorderless NSBorderlessWindowMask
+ #define NSWindowStyleMaskClosable NSClosableWindowMask
+ #define NSWindowStyleMaskMiniaturizable NSMiniaturizableWindowMask
+ #define NSWindowStyleMaskResizable NSResizableWindowMask
+ #define NSWindowStyleMaskTitled NSTitledWindowMask
+#endif
+
+// NOTE: Many Cocoa dynamically linked constants have been renamed and we need
+//       to build across SDK versions where one is unavailable or deprecated.
+//       We use the newer names in code and replace them with the older names if
+//       the deployment target is older than the newer names.
+
+#if MAC_OS_X_VERSION_MIN_REQUIRED < 101300
+ #define NSPasteboardTypeURL NSURLPboardType
+#endif
+
+typedef VkFlags VkMacOSSurfaceCreateFlagsMVK;
+typedef VkFlags VkMetalSurfaceCreateFlagsEXT;
+
+typedef struct VkMacOSSurfaceCreateInfoMVK
+{
+    VkStructureType                 sType;
+    const void*                     pNext;
+    VkMacOSSurfaceCreateFlagsMVK    flags;
+    const void*                     pView;
+} VkMacOSSurfaceCreateInfoMVK;
+
+typedef struct VkMetalSurfaceCreateInfoEXT
+{
+    VkStructureType                 sType;
+    const void*                     pNext;
+    VkMetalSurfaceCreateFlagsEXT    flags;
+    const void*                     pLayer;
+} VkMetalSurfaceCreateInfoEXT;
+
+typedef VkResult (APIENTRY *PFN_vkCreateMacOSSurfaceMVK)(VkInstance,const VkMacOSSurfaceCreateInfoMVK*,const VkAllocationCallbacks*,VkSurfaceKHR*);
+typedef VkResult (APIENTRY *PFN_vkCreateMetalSurfaceEXT)(VkInstance,const VkMetalSurfaceCreateInfoEXT*,const VkAllocationCallbacks*,VkSurfaceKHR*);
+
+#define GLFW_COCOA_WINDOW_STATE         _GLFWwindowNS  ns;
+#define GLFW_COCOA_LIBRARY_WINDOW_STATE _GLFWlibraryNS ns;
+#define GLFW_COCOA_MONITOR_STATE        _GLFWmonitorNS ns;
+#define GLFW_COCOA_CURSOR_STATE         _GLFWcursorNS  ns;
+
+#define GLFW_NSGL_CONTEXT_STATE         _GLFWcontextNSGL nsgl;
+#define GLFW_NSGL_LIBRARY_CONTEXT_STATE _GLFWlibraryNSGL nsgl;
+
+// HIToolbox.framework pointer typedefs
+#define kTISPropertyUnicodeKeyLayoutData _glfw.ns.tis.kPropertyUnicodeKeyLayoutData
+typedef TISInputSourceRef (*PFN_TISCopyCurrentKeyboardLayoutInputSource)(void);
+#define TISCopyCurrentKeyboardLayoutInputSource _glfw.ns.tis.CopyCurrentKeyboardLayoutInputSource
+typedef void* (*PFN_TISGetInputSourceProperty)(TISInputSourceRef,CFStringRef);
+#define TISGetInputSourceProperty _glfw.ns.tis.GetInputSourceProperty
+typedef UInt8 (*PFN_LMGetKbdType)(void);
+#define LMGetKbdType _glfw.ns.tis.GetKbdType
+
+
+// NSGL-specific per-context data
+//
+typedef struct _GLFWcontextNSGL
+{
+    id                pixelFormat;
+    id                object;
+} _GLFWcontextNSGL;
+
+// NSGL-specific global data
+//
+typedef struct _GLFWlibraryNSGL
+{
+    // dlopen handle for OpenGL.framework (for glfwGetProcAddress)
+    CFBundleRef     framework;
+} _GLFWlibraryNSGL;
+
+// Cocoa-specific per-window data
+//
+typedef struct _GLFWwindowNS
+{
+    id              object;
+    id              delegate;
+    id              view;
+    id              layer;
+
+    GLFWbool        maximized;
+    GLFWbool        occluded;
+    GLFWbool        scaleFramebuffer;
+
+    // Cached window properties to filter out duplicate events
+    int             width, height;
+    int             fbWidth, fbHeight;
+    float           xscale, yscale;
+
+    // The total sum of the distances the cursor has been warped
+    // since the last cursor motion event was processed
+    // This is kept to counteract Cocoa doing the same internally
+    double          cursorWarpDeltaX, cursorWarpDeltaY;
+} _GLFWwindowNS;
+
+// Cocoa-specific global data
+//
+typedef struct _GLFWlibraryNS
+{
+    CGEventSourceRef    eventSource;
+    id                  delegate;
+    GLFWbool            cursorHidden;
+    TISInputSourceRef   inputSource;
+    IOHIDManagerRef     hidManager;
+    id                  unicodeData;
+    id                  helper;
+    id                  keyUpMonitor;
+    id                  nibObjects;
+
+    char                keynames[GLFW_KEY_LAST + 1][17];
+    short int           keycodes[256];
+    short int           scancodes[GLFW_KEY_LAST + 1];
+    char*               clipboardString;
+    CGPoint             cascadePoint;
+    // Where to place the cursor when re-enabled
+    double              restoreCursorPosX, restoreCursorPosY;
+    // The window whose disabled cursor mode is active
+    _GLFWwindow*        disabledCursorWindow;
+
+    struct {
+        CFBundleRef     bundle;
+        PFN_TISCopyCurrentKeyboardLayoutInputSource CopyCurrentKeyboardLayoutInputSource;
+        PFN_TISGetInputSourceProperty GetInputSourceProperty;
+        PFN_LMGetKbdType GetKbdType;
+        CFStringRef     kPropertyUnicodeKeyLayoutData;
+    } tis;
+} _GLFWlibraryNS;
+
+// Cocoa-specific per-monitor data
+//
+typedef struct _GLFWmonitorNS
+{
+    CGDirectDisplayID   displayID;
+    CGDisplayModeRef    previousMode;
+    uint32_t            unitNumber;
+    id                  screen;
+    double              fallbackRefreshRate;
+} _GLFWmonitorNS;
+
+// Cocoa-specific per-cursor data
+//
+typedef struct _GLFWcursorNS
+{
+    id              object;
+} _GLFWcursorNS;
+
+
+GLFWbool _glfwConnectCocoa(int platformID, _GLFWplatform* platform);
+int _glfwInitCocoa(void);
+void _glfwTerminateCocoa(void);
+
+GLFWbool _glfwCreateWindowCocoa(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
+void _glfwDestroyWindowCocoa(_GLFWwindow* window);
+void _glfwSetWindowTitleCocoa(_GLFWwindow* window, const char* title);
+void _glfwSetWindowIconCocoa(_GLFWwindow* window, int count, const GLFWimage* images);
+void _glfwGetWindowPosCocoa(_GLFWwindow* window, int* xpos, int* ypos);
+void _glfwSetWindowPosCocoa(_GLFWwindow* window, int xpos, int ypos);
+void _glfwGetWindowSizeCocoa(_GLFWwindow* window, int* width, int* height);
+void _glfwSetWindowSizeCocoa(_GLFWwindow* window, int width, int height);
+void _glfwSetWindowSizeLimitsCocoa(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
+void _glfwSetWindowAspectRatioCocoa(_GLFWwindow* window, int numer, int denom);
+void _glfwGetFramebufferSizeCocoa(_GLFWwindow* window, int* width, int* height);
+void _glfwGetWindowFrameSizeCocoa(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
+void _glfwGetWindowContentScaleCocoa(_GLFWwindow* window, float* xscale, float* yscale);
+void _glfwIconifyWindowCocoa(_GLFWwindow* window);
+void _glfwRestoreWindowCocoa(_GLFWwindow* window);
+void _glfwMaximizeWindowCocoa(_GLFWwindow* window);
+void _glfwShowWindowCocoa(_GLFWwindow* window);
+void _glfwHideWindowCocoa(_GLFWwindow* window);
+void _glfwRequestWindowAttentionCocoa(_GLFWwindow* window);
+void _glfwFocusWindowCocoa(_GLFWwindow* window);
+void _glfwSetWindowMonitorCocoa(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
+GLFWbool _glfwWindowFocusedCocoa(_GLFWwindow* window);
+GLFWbool _glfwWindowIconifiedCocoa(_GLFWwindow* window);
+GLFWbool _glfwWindowVisibleCocoa(_GLFWwindow* window);
+GLFWbool _glfwWindowMaximizedCocoa(_GLFWwindow* window);
+GLFWbool _glfwWindowHoveredCocoa(_GLFWwindow* window);
+GLFWbool _glfwFramebufferTransparentCocoa(_GLFWwindow* window);
+void _glfwSetWindowResizableCocoa(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowDecoratedCocoa(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowFloatingCocoa(_GLFWwindow* window, GLFWbool enabled);
+float _glfwGetWindowOpacityCocoa(_GLFWwindow* window);
+void _glfwSetWindowOpacityCocoa(_GLFWwindow* window, float opacity);
+void _glfwSetWindowMousePassthroughCocoa(_GLFWwindow* window, GLFWbool enabled);
+
+void _glfwSetRawMouseMotionCocoa(_GLFWwindow *window, GLFWbool enabled);
+GLFWbool _glfwRawMouseMotionSupportedCocoa(void);
+
+void _glfwPollEventsCocoa(void);
+void _glfwWaitEventsCocoa(void);
+void _glfwWaitEventsTimeoutCocoa(double timeout);
+void _glfwPostEmptyEventCocoa(void);
+
+void _glfwGetCursorPosCocoa(_GLFWwindow* window, double* xpos, double* ypos);
+void _glfwSetCursorPosCocoa(_GLFWwindow* window, double xpos, double ypos);
+void _glfwSetCursorModeCocoa(_GLFWwindow* window, int mode);
+const char* _glfwGetScancodeNameCocoa(int scancode);
+int _glfwGetKeyScancodeCocoa(int key);
+GLFWbool _glfwCreateCursorCocoa(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot);
+GLFWbool _glfwCreateStandardCursorCocoa(_GLFWcursor* cursor, int shape);
+void _glfwDestroyCursorCocoa(_GLFWcursor* cursor);
+void _glfwSetCursorCocoa(_GLFWwindow* window, _GLFWcursor* cursor);
+void _glfwSetClipboardStringCocoa(const char* string);
+const char* _glfwGetClipboardStringCocoa(void);
+
+EGLenum _glfwGetEGLPlatformCocoa(EGLint** attribs);
+EGLNativeDisplayType _glfwGetEGLNativeDisplayCocoa(void);
+EGLNativeWindowType _glfwGetEGLNativeWindowCocoa(_GLFWwindow* window);
+
+void _glfwGetRequiredInstanceExtensionsCocoa(char** extensions);
+GLFWbool _glfwGetPhysicalDevicePresentationSupportCocoa(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
+VkResult _glfwCreateWindowSurfaceCocoa(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
+
+void _glfwFreeMonitorCocoa(_GLFWmonitor* monitor);
+void _glfwGetMonitorPosCocoa(_GLFWmonitor* monitor, int* xpos, int* ypos);
+void _glfwGetMonitorContentScaleCocoa(_GLFWmonitor* monitor, float* xscale, float* yscale);
+void _glfwGetMonitorWorkareaCocoa(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
+GLFWvidmode* _glfwGetVideoModesCocoa(_GLFWmonitor* monitor, int* count);
+GLFWbool _glfwGetVideoModeCocoa(_GLFWmonitor* monitor, GLFWvidmode* mode);
+GLFWbool _glfwGetGammaRampCocoa(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
+void _glfwSetGammaRampCocoa(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
+
+void _glfwPollMonitorsCocoa(void);
+void _glfwSetVideoModeCocoa(_GLFWmonitor* monitor, const GLFWvidmode* desired);
+void _glfwRestoreVideoModeCocoa(_GLFWmonitor* monitor);
+
+float _glfwTransformYCocoa(float y);
+
+void* _glfwLoadLocalVulkanLoaderCocoa(void);
+
+GLFWbool _glfwInitNSGL(void);
+void _glfwTerminateNSGL(void);
+GLFWbool _glfwCreateContextNSGL(_GLFWwindow* window,
+                                const _GLFWctxconfig* ctxconfig,
+                                const _GLFWfbconfig* fbconfig);
+void _glfwDestroyContextNSGL(_GLFWwindow* window);
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_time.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_time.c
new file mode 100644
index 000000000000..a153edb3871f
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_time.c
@@ -0,0 +1,57 @@
+//========================================================================
+// GLFW 3.5 macOS - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2016 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_COCOA_TIMER)
+
+#include <mach/mach_time.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwPlatformInitTimer(void)
+{
+    mach_timebase_info_data_t info;
+    mach_timebase_info(&info);
+
+    _glfw.timer.ns.frequency = (info.denom * 1e9) / info.numer;
+}
+
+uint64_t _glfwPlatformGetTimerValue(void)
+{
+    return mach_absolute_time();
+}
+
+uint64_t _glfwPlatformGetTimerFrequency(void)
+{
+    return _glfw.timer.ns.frequency;
+}
+
+#endif // GLFW_BUILD_COCOA_TIMER
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_time.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_time.h
new file mode 100644
index 000000000000..8463cbb65fd9
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_time.h
@@ -0,0 +1,35 @@
+//========================================================================
+// GLFW 3.5 macOS - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2021 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define GLFW_COCOA_LIBRARY_TIMER_STATE  _GLFWtimerNS   ns;
+
+// Cocoa-specific global timer data
+//
+typedef struct _GLFWtimerNS
+{
+    uint64_t        frequency;
+} _GLFWtimerNS;
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_window.m b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_window.m
new file mode 100644
index 000000000000..e69b5fe0c3d5
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/cocoa_window.m
@@ -0,0 +1,2063 @@
+//========================================================================
+// GLFW 3.5 macOS - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_COCOA)
+
+#import <QuartzCore/CAMetalLayer.h>
+
+#include <float.h>
+#include <string.h>
+#include <assert.h>
+
+// HACK: This enum value is missing from framework headers on OS X 10.11 despite
+//       having been (according to documentation) added in Mac OS X 10.7
+#define NSWindowCollectionBehaviorFullScreenNone (1 << 9)
+
+// Returns whether the cursor is in the content area of the specified window
+//
+static GLFWbool cursorInContentArea(_GLFWwindow* window)
+{
+    const NSPoint pos = [window->ns.object mouseLocationOutsideOfEventStream];
+    return [window->ns.view mouse:pos inRect:[window->ns.view frame]];
+}
+
+// Hides the cursor if not already hidden
+//
+static void hideCursor(_GLFWwindow* window)
+{
+    if (!_glfw.ns.cursorHidden)
+    {
+        [NSCursor hide];
+        _glfw.ns.cursorHidden = GLFW_TRUE;
+    }
+}
+
+// Shows the cursor if not already shown
+//
+static void showCursor(_GLFWwindow* window)
+{
+    if (_glfw.ns.cursorHidden)
+    {
+        [NSCursor unhide];
+        _glfw.ns.cursorHidden = GLFW_FALSE;
+    }
+}
+
+// Updates the cursor image according to its cursor mode
+//
+static void updateCursorImage(_GLFWwindow* window)
+{
+    if (window->cursorMode == GLFW_CURSOR_NORMAL)
+    {
+        showCursor(window);
+
+        if (window->cursor)
+            [(NSCursor*) window->cursor->ns.object set];
+        else
+            [[NSCursor arrowCursor] set];
+    }
+    else
+        hideCursor(window);
+}
+
+// Apply chosen cursor mode to a focused window
+//
+static void updateCursorMode(_GLFWwindow* window)
+{
+    if (window->cursorMode == GLFW_CURSOR_DISABLED)
+    {
+        _glfw.ns.disabledCursorWindow = window;
+        _glfwGetCursorPosCocoa(window,
+                               &_glfw.ns.restoreCursorPosX,
+                               &_glfw.ns.restoreCursorPosY);
+        _glfwCenterCursorInContentArea(window);
+        CGAssociateMouseAndMouseCursorPosition(false);
+    }
+    else if (_glfw.ns.disabledCursorWindow == window)
+    {
+        _glfw.ns.disabledCursorWindow = NULL;
+        _glfwSetCursorPosCocoa(window,
+                               _glfw.ns.restoreCursorPosX,
+                               _glfw.ns.restoreCursorPosY);
+        // NOTE: The matching CGAssociateMouseAndMouseCursorPosition call is
+        //       made in _glfwSetCursorPosCocoa as part of a workaround
+    }
+
+    if (cursorInContentArea(window))
+        updateCursorImage(window);
+}
+
+// Make the specified window and its video mode active on its monitor
+//
+static void acquireMonitor(_GLFWwindow* window)
+{
+    _glfwSetVideoModeCocoa(window->monitor, &window->videoMode);
+    const CGRect bounds = CGDisplayBounds(window->monitor->ns.displayID);
+    const NSRect frame = NSMakeRect(bounds.origin.x,
+                                    _glfwTransformYCocoa(bounds.origin.y + bounds.size.height - 1),
+                                    bounds.size.width,
+                                    bounds.size.height);
+
+    [window->ns.object setFrame:frame display:YES];
+
+    _glfwInputMonitorWindow(window->monitor, window);
+}
+
+// Remove the window and restore the original video mode
+//
+static void releaseMonitor(_GLFWwindow* window)
+{
+    if (window->monitor->window != window)
+        return;
+
+    _glfwInputMonitorWindow(window->monitor, NULL);
+    _glfwRestoreVideoModeCocoa(window->monitor);
+}
+
+// Translates macOS key modifiers into GLFW ones
+//
+static int translateFlags(NSUInteger flags)
+{
+    int mods = 0;
+
+    if (flags & NSEventModifierFlagShift)
+        mods |= GLFW_MOD_SHIFT;
+    if (flags & NSEventModifierFlagControl)
+        mods |= GLFW_MOD_CONTROL;
+    if (flags & NSEventModifierFlagOption)
+        mods |= GLFW_MOD_ALT;
+    if (flags & NSEventModifierFlagCommand)
+        mods |= GLFW_MOD_SUPER;
+    if (flags & NSEventModifierFlagCapsLock)
+        mods |= GLFW_MOD_CAPS_LOCK;
+
+    return mods;
+}
+
+// Translates a macOS keycode to a GLFW keycode
+//
+static int translateKey(unsigned int key)
+{
+    if (key >= sizeof(_glfw.ns.keycodes) / sizeof(_glfw.ns.keycodes[0]))
+        return GLFW_KEY_UNKNOWN;
+
+    return _glfw.ns.keycodes[key];
+}
+
+// Translate a GLFW keycode to a Cocoa modifier flag
+//
+static NSUInteger translateKeyToModifierFlag(int key)
+{
+    switch (key)
+    {
+        case GLFW_KEY_LEFT_SHIFT:
+        case GLFW_KEY_RIGHT_SHIFT:
+            return NSEventModifierFlagShift;
+        case GLFW_KEY_LEFT_CONTROL:
+        case GLFW_KEY_RIGHT_CONTROL:
+            return NSEventModifierFlagControl;
+        case GLFW_KEY_LEFT_ALT:
+        case GLFW_KEY_RIGHT_ALT:
+            return NSEventModifierFlagOption;
+        case GLFW_KEY_LEFT_SUPER:
+        case GLFW_KEY_RIGHT_SUPER:
+            return NSEventModifierFlagCommand;
+        case GLFW_KEY_CAPS_LOCK:
+            return NSEventModifierFlagCapsLock;
+    }
+
+    return 0;
+}
+
+// Defines a constant for empty ranges in NSTextInputClient
+//
+static const NSRange kEmptyRange = { NSNotFound, 0 };
+
+
+//------------------------------------------------------------------------
+// Delegate for window related notifications
+//------------------------------------------------------------------------
+
+@interface GLFWWindowDelegate : NSObject
+{
+    _GLFWwindow* window;
+}
+
+- (instancetype)initWithGlfwWindow:(_GLFWwindow *)initWindow;
+
+@end
+
+@implementation GLFWWindowDelegate
+
+- (instancetype)initWithGlfwWindow:(_GLFWwindow *)initWindow
+{
+    self = [super init];
+    if (self != nil)
+        window = initWindow;
+
+    return self;
+}
+
+- (BOOL)windowShouldClose:(id)sender
+{
+    _glfwInputWindowCloseRequest(window);
+    return NO;
+}
+
+- (void)windowDidResize:(NSNotification *)notification
+{
+    if (window->context.source == GLFW_NATIVE_CONTEXT_API)
+        [window->context.nsgl.object update];
+
+    if (_glfw.ns.disabledCursorWindow == window)
+        _glfwCenterCursorInContentArea(window);
+
+    const int maximized = [window->ns.object isZoomed];
+    if (window->ns.maximized != maximized)
+    {
+        window->ns.maximized = maximized;
+        _glfwInputWindowMaximize(window, maximized);
+    }
+
+    const NSRect contentRect = [window->ns.view frame];
+    const NSRect fbRect = [window->ns.view convertRectToBacking:contentRect];
+
+    if (fbRect.size.width != window->ns.fbWidth ||
+        fbRect.size.height != window->ns.fbHeight)
+    {
+        window->ns.fbWidth  = fbRect.size.width;
+        window->ns.fbHeight = fbRect.size.height;
+        _glfwInputFramebufferSize(window, fbRect.size.width, fbRect.size.height);
+    }
+
+    if (contentRect.size.width != window->ns.width ||
+        contentRect.size.height != window->ns.height)
+    {
+        window->ns.width  = contentRect.size.width;
+        window->ns.height = contentRect.size.height;
+        _glfwInputWindowSize(window, contentRect.size.width, contentRect.size.height);
+    }
+}
+
+- (void)windowDidMove:(NSNotification *)notification
+{
+    if (window->context.source == GLFW_NATIVE_CONTEXT_API)
+        [window->context.nsgl.object update];
+
+    if (_glfw.ns.disabledCursorWindow == window)
+        _glfwCenterCursorInContentArea(window);
+
+    int x, y;
+    _glfwGetWindowPosCocoa(window, &x, &y);
+    _glfwInputWindowPos(window, x, y);
+}
+
+- (void)windowDidMiniaturize:(NSNotification *)notification
+{
+    if (window->monitor)
+        releaseMonitor(window);
+
+    _glfwInputWindowIconify(window, GLFW_TRUE);
+}
+
+- (void)windowDidDeminiaturize:(NSNotification *)notification
+{
+    if (window->monitor)
+        acquireMonitor(window);
+
+    _glfwInputWindowIconify(window, GLFW_FALSE);
+}
+
+- (void)windowDidBecomeKey:(NSNotification *)notification
+{
+    if (_glfw.ns.disabledCursorWindow == window)
+        _glfwCenterCursorInContentArea(window);
+
+    _glfwInputWindowFocus(window, GLFW_TRUE);
+    updateCursorMode(window);
+}
+
+- (void)windowDidResignKey:(NSNotification *)notification
+{
+    if (window->monitor && window->autoIconify)
+        _glfwIconifyWindowCocoa(window);
+
+    _glfwInputWindowFocus(window, GLFW_FALSE);
+}
+
+- (void)windowDidChangeOcclusionState:(NSNotification* )notification
+{
+    if ([window->ns.object respondsToSelector:@selector(occlusionState)])
+    {
+        if ([window->ns.object occlusionState] & NSWindowOcclusionStateVisible)
+            window->ns.occluded = GLFW_FALSE;
+        else
+            window->ns.occluded = GLFW_TRUE;
+    }
+}
+
+@end
+
+
+//------------------------------------------------------------------------
+// Content view class for the GLFW window
+//------------------------------------------------------------------------
+
+@interface GLFWContentView : NSView <NSTextInputClient>
+{
+    _GLFWwindow* window;
+    NSTrackingArea* trackingArea;
+    NSMutableAttributedString* markedText;
+}
+
+- (instancetype)initWithGlfwWindow:(_GLFWwindow *)initWindow;
+
+@end
+
+@implementation GLFWContentView
+
+- (instancetype)initWithGlfwWindow:(_GLFWwindow *)initWindow
+{
+    self = [super init];
+    if (self != nil)
+    {
+        window = initWindow;
+        trackingArea = nil;
+        markedText = [[NSMutableAttributedString alloc] init];
+
+        [self updateTrackingAreas];
+        [self registerForDraggedTypes:@[NSPasteboardTypeURL]];
+    }
+
+    return self;
+}
+
+- (void)dealloc
+{
+    [trackingArea release];
+    [markedText release];
+    [super dealloc];
+}
+
+- (BOOL)isOpaque
+{
+    return [window->ns.object isOpaque];
+}
+
+- (BOOL)canBecomeKeyView
+{
+    return YES;
+}
+
+- (BOOL)acceptsFirstResponder
+{
+    return YES;
+}
+
+- (BOOL)wantsUpdateLayer
+{
+    return YES;
+}
+
+- (void)updateLayer
+{
+    if (window->context.source == GLFW_NATIVE_CONTEXT_API)
+        [window->context.nsgl.object update];
+
+    _glfwInputWindowDamage(window);
+}
+
+- (void)cursorUpdate:(NSEvent *)event
+{
+    updateCursorImage(window);
+}
+
+- (BOOL)acceptsFirstMouse:(NSEvent *)event
+{
+    return YES;
+}
+
+- (void)mouseDown:(NSEvent *)event
+{
+    _glfwInputMouseClick(window,
+                         GLFW_MOUSE_BUTTON_LEFT,
+                         GLFW_PRESS,
+                         translateFlags([event modifierFlags]));
+}
+
+- (void)mouseDragged:(NSEvent *)event
+{
+    [self mouseMoved:event];
+}
+
+- (void)mouseUp:(NSEvent *)event
+{
+    _glfwInputMouseClick(window,
+                         GLFW_MOUSE_BUTTON_LEFT,
+                         GLFW_RELEASE,
+                         translateFlags([event modifierFlags]));
+}
+
+- (void)mouseMoved:(NSEvent *)event
+{
+    if (window->cursorMode == GLFW_CURSOR_DISABLED)
+    {
+        const double dx = [event deltaX] - window->ns.cursorWarpDeltaX;
+        const double dy = [event deltaY] - window->ns.cursorWarpDeltaY;
+
+        _glfwInputCursorPos(window,
+                            window->virtualCursorPosX + dx,
+                            window->virtualCursorPosY + dy);
+    }
+    else
+    {
+        const NSRect contentRect = [window->ns.view frame];
+        // NOTE: The returned location uses base 0,1 not 0,0
+        const NSPoint pos = [event locationInWindow];
+
+        _glfwInputCursorPos(window, pos.x, contentRect.size.height - pos.y);
+    }
+
+    window->ns.cursorWarpDeltaX = 0;
+    window->ns.cursorWarpDeltaY = 0;
+}
+
+- (void)rightMouseDown:(NSEvent *)event
+{
+    _glfwInputMouseClick(window,
+                         GLFW_MOUSE_BUTTON_RIGHT,
+                         GLFW_PRESS,
+                         translateFlags([event modifierFlags]));
+}
+
+- (void)rightMouseDragged:(NSEvent *)event
+{
+    [self mouseMoved:event];
+}
+
+- (void)rightMouseUp:(NSEvent *)event
+{
+    _glfwInputMouseClick(window,
+                         GLFW_MOUSE_BUTTON_RIGHT,
+                         GLFW_RELEASE,
+                         translateFlags([event modifierFlags]));
+}
+
+- (void)otherMouseDown:(NSEvent *)event
+{
+    _glfwInputMouseClick(window,
+                         (int) [event buttonNumber],
+                         GLFW_PRESS,
+                         translateFlags([event modifierFlags]));
+}
+
+- (void)otherMouseDragged:(NSEvent *)event
+{
+    [self mouseMoved:event];
+}
+
+- (void)otherMouseUp:(NSEvent *)event
+{
+    _glfwInputMouseClick(window,
+                         (int) [event buttonNumber],
+                         GLFW_RELEASE,
+                         translateFlags([event modifierFlags]));
+}
+
+- (void)mouseExited:(NSEvent *)event
+{
+    if (window->cursorMode == GLFW_CURSOR_HIDDEN)
+        showCursor(window);
+
+    _glfwInputCursorEnter(window, GLFW_FALSE);
+}
+
+- (void)mouseEntered:(NSEvent *)event
+{
+    if (window->cursorMode == GLFW_CURSOR_HIDDEN)
+        hideCursor(window);
+
+    _glfwInputCursorEnter(window, GLFW_TRUE);
+}
+
+- (void)viewDidChangeBackingProperties
+{
+    const NSRect contentRect = [window->ns.view frame];
+    const NSRect fbRect = [window->ns.view convertRectToBacking:contentRect];
+    const float xscale = fbRect.size.width / contentRect.size.width;
+    const float yscale = fbRect.size.height / contentRect.size.height;
+
+    if (xscale != window->ns.xscale || yscale != window->ns.yscale)
+    {
+        if (window->ns.scaleFramebuffer && window->ns.layer)
+            [window->ns.layer setContentsScale:[window->ns.object backingScaleFactor]];
+
+        window->ns.xscale = xscale;
+        window->ns.yscale = yscale;
+        _glfwInputWindowContentScale(window, xscale, yscale);
+    }
+
+    if (fbRect.size.width != window->ns.fbWidth ||
+        fbRect.size.height != window->ns.fbHeight)
+    {
+        window->ns.fbWidth  = fbRect.size.width;
+        window->ns.fbHeight = fbRect.size.height;
+        _glfwInputFramebufferSize(window, fbRect.size.width, fbRect.size.height);
+    }
+}
+
+- (void)drawRect:(NSRect)rect
+{
+    _glfwInputWindowDamage(window);
+}
+
+- (void)updateTrackingAreas
+{
+    if (trackingArea != nil)
+    {
+        [self removeTrackingArea:trackingArea];
+        [trackingArea release];
+    }
+
+    const NSTrackingAreaOptions options = NSTrackingMouseEnteredAndExited |
+                                          NSTrackingActiveInKeyWindow |
+                                          NSTrackingEnabledDuringMouseDrag |
+                                          NSTrackingCursorUpdate |
+                                          NSTrackingInVisibleRect |
+                                          NSTrackingAssumeInside;
+
+    trackingArea = [[NSTrackingArea alloc] initWithRect:[self bounds]
+                                                options:options
+                                                  owner:self
+                                               userInfo:nil];
+
+    [self addTrackingArea:trackingArea];
+    [super updateTrackingAreas];
+}
+
+- (void)keyDown:(NSEvent *)event
+{
+    const int key = translateKey([event keyCode]);
+    const int mods = translateFlags([event modifierFlags]);
+
+    _glfwInputKey(window, key, [event keyCode], GLFW_PRESS, mods);
+
+    [self interpretKeyEvents:@[event]];
+}
+
+- (void)flagsChanged:(NSEvent *)event
+{
+    int action;
+    const unsigned int modifierFlags =
+        [event modifierFlags] & NSEventModifierFlagDeviceIndependentFlagsMask;
+    const int key = translateKey([event keyCode]);
+    const int mods = translateFlags(modifierFlags);
+    const NSUInteger keyFlag = translateKeyToModifierFlag(key);
+
+    if (keyFlag & modifierFlags)
+    {
+        if (window->keys[key] == GLFW_PRESS)
+            action = GLFW_RELEASE;
+        else
+            action = GLFW_PRESS;
+    }
+    else
+        action = GLFW_RELEASE;
+
+    _glfwInputKey(window, key, [event keyCode], action, mods);
+}
+
+- (void)keyUp:(NSEvent *)event
+{
+    const int key = translateKey([event keyCode]);
+    const int mods = translateFlags([event modifierFlags]);
+    _glfwInputKey(window, key, [event keyCode], GLFW_RELEASE, mods);
+}
+
+- (void)scrollWheel:(NSEvent *)event
+{
+    double deltaX = [event scrollingDeltaX];
+    double deltaY = [event scrollingDeltaY];
+
+    if ([event hasPreciseScrollingDeltas])
+    {
+        deltaX *= 0.1;
+        deltaY *= 0.1;
+    }
+
+    if (fabs(deltaX) > 0.0 || fabs(deltaY) > 0.0)
+        _glfwInputScroll(window, deltaX, deltaY);
+}
+
+- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
+{
+    // HACK: We don't know what to say here because we don't know what the
+    //       application wants to do with the paths
+    return NSDragOperationGeneric;
+}
+
+- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
+{
+    const NSRect contentRect = [window->ns.view frame];
+    // NOTE: The returned location uses base 0,1 not 0,0
+    const NSPoint pos = [sender draggingLocation];
+    _glfwInputCursorPos(window, pos.x, contentRect.size.height - pos.y);
+
+    NSPasteboard* pasteboard = [sender draggingPasteboard];
+    NSDictionary* options = @{NSPasteboardURLReadingFileURLsOnlyKey:@YES};
+    NSArray* urls = [pasteboard readObjectsForClasses:@[[NSURL class]]
+                                              options:options];
+    const NSUInteger count = [urls count];
+    if (count)
+    {
+        char** paths = _glfw_calloc(count, sizeof(char*));
+
+        for (NSUInteger i = 0;  i < count;  i++)
+            paths[i] = _glfw_strdup([urls[i] fileSystemRepresentation]);
+
+        _glfwInputDrop(window, (int) count, (const char**) paths);
+
+        for (NSUInteger i = 0;  i < count;  i++)
+            _glfw_free(paths[i]);
+        _glfw_free(paths);
+    }
+
+    return YES;
+}
+
+- (BOOL)hasMarkedText
+{
+    return [markedText length] > 0;
+}
+
+- (NSRange)markedRange
+{
+    if ([markedText length] > 0)
+        return NSMakeRange(0, [markedText length] - 1);
+    else
+        return kEmptyRange;
+}
+
+- (NSRange)selectedRange
+{
+    return kEmptyRange;
+}
+
+- (void)setMarkedText:(id)string
+        selectedRange:(NSRange)selectedRange
+     replacementRange:(NSRange)replacementRange
+{
+    [markedText release];
+    if ([string isKindOfClass:[NSAttributedString class]])
+        markedText = [[NSMutableAttributedString alloc] initWithAttributedString:string];
+    else
+        markedText = [[NSMutableAttributedString alloc] initWithString:string];
+}
+
+- (void)unmarkText
+{
+    [[markedText mutableString] setString:@""];
+}
+
+- (NSArray*)validAttributesForMarkedText
+{
+    return [NSArray array];
+}
+
+- (NSAttributedString*)attributedSubstringForProposedRange:(NSRange)range
+                                               actualRange:(NSRangePointer)actualRange
+{
+    return nil;
+}
+
+- (NSUInteger)characterIndexForPoint:(NSPoint)point
+{
+    return 0;
+}
+
+- (NSRect)firstRectForCharacterRange:(NSRange)range
+                         actualRange:(NSRangePointer)actualRange
+{
+    const NSRect frame = [window->ns.view frame];
+    return NSMakeRect(frame.origin.x, frame.origin.y, 0.0, 0.0);
+}
+
+- (void)insertText:(id)string replacementRange:(NSRange)replacementRange
+{
+    NSString* characters;
+    NSEvent* event = [NSApp currentEvent];
+    const int mods = translateFlags([event modifierFlags]);
+    const int plain = !(mods & GLFW_MOD_SUPER);
+
+    if ([string isKindOfClass:[NSAttributedString class]])
+        characters = [string string];
+    else
+        characters = (NSString*) string;
+
+    NSRange range = NSMakeRange(0, [characters length]);
+    while (range.length)
+    {
+        uint32_t codepoint = 0;
+
+        if ([characters getBytes:&codepoint
+                       maxLength:sizeof(codepoint)
+                      usedLength:NULL
+                        encoding:NSUTF32StringEncoding
+                         options:0
+                           range:range
+                  remainingRange:&range])
+        {
+            if (codepoint >= 0xf700 && codepoint <= 0xf7ff)
+                continue;
+
+            _glfwInputChar(window, codepoint, mods, plain);
+        }
+    }
+}
+
+- (void)doCommandBySelector:(SEL)selector
+{
+}
+
+@end
+
+
+//------------------------------------------------------------------------
+// GLFW window class
+//------------------------------------------------------------------------
+
+@interface GLFWWindow : NSWindow {}
+@end
+
+@implementation GLFWWindow
+
+- (BOOL)canBecomeKeyWindow
+{
+    // Required for NSWindowStyleMaskBorderless windows
+    return YES;
+}
+
+- (BOOL)canBecomeMainWindow
+{
+    return YES;
+}
+
+@end
+
+
+// Create the Cocoa window
+//
+static GLFWbool createNativeWindow(_GLFWwindow* window,
+                                   const _GLFWwndconfig* wndconfig,
+                                   const _GLFWfbconfig* fbconfig)
+{
+    window->ns.delegate = [[GLFWWindowDelegate alloc] initWithGlfwWindow:window];
+    if (window->ns.delegate == nil)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to create window delegate");
+        return GLFW_FALSE;
+    }
+
+    NSRect contentRect;
+
+    if (window->monitor)
+    {
+        GLFWvidmode mode;
+        int xpos, ypos;
+
+        _glfwGetVideoModeCocoa(window->monitor, &mode);
+        _glfwGetMonitorPosCocoa(window->monitor, &xpos, &ypos);
+
+        contentRect = NSMakeRect(xpos, ypos, mode.width, mode.height);
+    }
+    else
+    {
+        if (wndconfig->xpos == GLFW_ANY_POSITION ||
+            wndconfig->ypos == GLFW_ANY_POSITION)
+        {
+            contentRect = NSMakeRect(0, 0, wndconfig->width, wndconfig->height);
+        }
+        else
+        {
+            const int xpos = wndconfig->xpos;
+            const int ypos = _glfwTransformYCocoa(wndconfig->ypos + wndconfig->height - 1);
+            contentRect = NSMakeRect(xpos, ypos, wndconfig->width, wndconfig->height);
+        }
+    }
+
+    NSUInteger styleMask = NSWindowStyleMaskMiniaturizable;
+
+    if (window->monitor || !window->decorated)
+        styleMask |= NSWindowStyleMaskBorderless;
+    else
+    {
+        styleMask |= (NSWindowStyleMaskTitled | NSWindowStyleMaskClosable);
+
+        if (window->resizable)
+            styleMask |= NSWindowStyleMaskResizable;
+    }
+
+    window->ns.object = [[GLFWWindow alloc]
+        initWithContentRect:contentRect
+                  styleMask:styleMask
+                    backing:NSBackingStoreBuffered
+                      defer:NO];
+
+    if (window->ns.object == nil)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Cocoa: Failed to create window");
+        return GLFW_FALSE;
+    }
+
+    if (window->monitor)
+        [window->ns.object setLevel:NSMainMenuWindowLevel + 1];
+    else
+    {
+        if (wndconfig->xpos == GLFW_ANY_POSITION ||
+            wndconfig->ypos == GLFW_ANY_POSITION)
+        {
+            [(NSWindow*) window->ns.object center];
+            _glfw.ns.cascadePoint =
+                NSPointToCGPoint([window->ns.object cascadeTopLeftFromPoint:
+                                NSPointFromCGPoint(_glfw.ns.cascadePoint)]);
+        }
+
+        if (wndconfig->resizable)
+        {
+            const NSWindowCollectionBehavior behavior =
+                NSWindowCollectionBehaviorFullScreenPrimary |
+                NSWindowCollectionBehaviorManaged;
+            [window->ns.object setCollectionBehavior:behavior];
+        }
+        else
+        {
+            const NSWindowCollectionBehavior behavior =
+                NSWindowCollectionBehaviorFullScreenNone;
+            [window->ns.object setCollectionBehavior:behavior];
+        }
+
+        if (wndconfig->floating)
+            [window->ns.object setLevel:NSFloatingWindowLevel];
+
+        if (wndconfig->maximized)
+            [window->ns.object zoom:nil];
+    }
+
+    if (strlen(wndconfig->ns.frameName))
+        [window->ns.object setFrameAutosaveName:@(wndconfig->ns.frameName)];
+
+    window->ns.view = [[GLFWContentView alloc] initWithGlfwWindow:window];
+    window->ns.scaleFramebuffer = wndconfig->scaleFramebuffer;
+
+    if (fbconfig->transparent)
+    {
+        [window->ns.object setOpaque:NO];
+        [window->ns.object setHasShadow:NO];
+        [window->ns.object setBackgroundColor:[NSColor clearColor]];
+    }
+
+    [window->ns.object setContentView:window->ns.view];
+    [window->ns.object makeFirstResponder:window->ns.view];
+    [window->ns.object setTitle:@(wndconfig->title)];
+    [window->ns.object setDelegate:window->ns.delegate];
+    [window->ns.object setAcceptsMouseMovedEvents:YES];
+    [window->ns.object setRestorable:NO];
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 101200
+    if ([window->ns.object respondsToSelector:@selector(setTabbingMode:)])
+        [window->ns.object setTabbingMode:NSWindowTabbingModeDisallowed];
+#endif
+
+    _glfwGetWindowSizeCocoa(window, &window->ns.width, &window->ns.height);
+    _glfwGetFramebufferSizeCocoa(window, &window->ns.fbWidth, &window->ns.fbHeight);
+
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Transforms a y-coordinate between the CG display and NS screen spaces
+//
+float _glfwTransformYCocoa(float y)
+{
+    return CGDisplayBounds(CGMainDisplayID()).size.height - y - 1;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwCreateWindowCocoa(_GLFWwindow* window,
+                                const _GLFWwndconfig* wndconfig,
+                                const _GLFWctxconfig* ctxconfig,
+                                const _GLFWfbconfig* fbconfig)
+{
+    @autoreleasepool {
+
+    if (!createNativeWindow(window, wndconfig, fbconfig))
+        return GLFW_FALSE;
+
+    if (ctxconfig->client != GLFW_NO_API)
+    {
+        if (ctxconfig->source == GLFW_NATIVE_CONTEXT_API)
+        {
+            if (!_glfwInitNSGL())
+                return GLFW_FALSE;
+            if (!_glfwCreateContextNSGL(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+        else if (ctxconfig->source == GLFW_EGL_CONTEXT_API)
+        {
+            // EGL implementation on macOS use CALayer* EGLNativeWindowType so we
+            // need to get the layer for EGL window surface creation.
+            [window->ns.view setWantsLayer:YES];
+            window->ns.layer = [window->ns.view layer];
+
+            if (!_glfwInitEGL())
+                return GLFW_FALSE;
+            if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+        else if (ctxconfig->source == GLFW_OSMESA_CONTEXT_API)
+        {
+            if (!_glfwInitOSMesa())
+                return GLFW_FALSE;
+            if (!_glfwCreateContextOSMesa(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+
+        if (!_glfwRefreshContextAttribs(window, ctxconfig))
+            return GLFW_FALSE;
+    }
+
+    if (wndconfig->mousePassthrough)
+        _glfwSetWindowMousePassthroughCocoa(window, GLFW_TRUE);
+
+    if (window->monitor)
+    {
+        _glfwShowWindowCocoa(window);
+        _glfwFocusWindowCocoa(window);
+        acquireMonitor(window);
+
+        if (wndconfig->centerCursor)
+            _glfwCenterCursorInContentArea(window);
+    }
+    else
+    {
+        if (wndconfig->visible)
+        {
+            _glfwShowWindowCocoa(window);
+            if (wndconfig->focused)
+                _glfwFocusWindowCocoa(window);
+        }
+    }
+
+    return GLFW_TRUE;
+
+    } // autoreleasepool
+}
+
+void _glfwDestroyWindowCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+
+    if (_glfw.ns.disabledCursorWindow == window)
+        _glfw.ns.disabledCursorWindow = NULL;
+
+    [window->ns.object orderOut:nil];
+
+    if (window->monitor)
+        releaseMonitor(window);
+
+    if (window->context.destroy)
+        window->context.destroy(window);
+
+    [window->ns.object setDelegate:nil];
+    [window->ns.delegate release];
+    window->ns.delegate = nil;
+
+    [window->ns.view release];
+    window->ns.view = nil;
+
+    [window->ns.object close];
+    window->ns.object = nil;
+
+    // HACK: Allow Cocoa to catch up before returning
+    _glfwPollEventsCocoa();
+
+    } // autoreleasepool
+}
+
+void _glfwSetWindowTitleCocoa(_GLFWwindow* window, const char* title)
+{
+    @autoreleasepool {
+    NSString* string = @(title);
+    [window->ns.object setTitle:string];
+    // HACK: Set the miniwindow title explicitly as setTitle: doesn't update it
+    //       if the window lacks NSWindowStyleMaskTitled
+    [window->ns.object setMiniwindowTitle:string];
+    } // autoreleasepool
+}
+
+void _glfwSetWindowIconCocoa(_GLFWwindow* window,
+                             int count, const GLFWimage* images)
+{
+    _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                    "Cocoa: Regular windows do not have icons on macOS");
+}
+
+void _glfwGetWindowPosCocoa(_GLFWwindow* window, int* xpos, int* ypos)
+{
+    @autoreleasepool {
+
+    const NSRect contentRect =
+        [window->ns.object contentRectForFrameRect:[window->ns.object frame]];
+
+    if (xpos)
+        *xpos = contentRect.origin.x;
+    if (ypos)
+        *ypos = _glfwTransformYCocoa(contentRect.origin.y + contentRect.size.height - 1);
+
+    } // autoreleasepool
+}
+
+void _glfwSetWindowPosCocoa(_GLFWwindow* window, int x, int y)
+{
+    @autoreleasepool {
+
+    const NSRect contentRect = [window->ns.view frame];
+    const NSRect dummyRect = NSMakeRect(x, _glfwTransformYCocoa(y + contentRect.size.height - 1), 0, 0);
+    const NSRect frameRect = [window->ns.object frameRectForContentRect:dummyRect];
+    [window->ns.object setFrameOrigin:frameRect.origin];
+
+    } // autoreleasepool
+}
+
+void _glfwGetWindowSizeCocoa(_GLFWwindow* window, int* width, int* height)
+{
+    @autoreleasepool {
+
+    const NSRect contentRect = [window->ns.view frame];
+
+    if (width)
+        *width = contentRect.size.width;
+    if (height)
+        *height = contentRect.size.height;
+
+    } // autoreleasepool
+}
+
+void _glfwSetWindowSizeCocoa(_GLFWwindow* window, int width, int height)
+{
+    @autoreleasepool {
+
+    if (window->monitor)
+    {
+        if (window->monitor->window == window)
+            acquireMonitor(window);
+    }
+    else
+    {
+        NSRect contentRect =
+            [window->ns.object contentRectForFrameRect:[window->ns.object frame]];
+        contentRect.origin.y += contentRect.size.height - height;
+        contentRect.size = NSMakeSize(width, height);
+        [window->ns.object setFrame:[window->ns.object frameRectForContentRect:contentRect]
+                            display:YES];
+    }
+
+    } // autoreleasepool
+}
+
+void _glfwSetWindowSizeLimitsCocoa(_GLFWwindow* window,
+                                   int minwidth, int minheight,
+                                   int maxwidth, int maxheight)
+{
+    @autoreleasepool {
+
+    if (minwidth == GLFW_DONT_CARE || minheight == GLFW_DONT_CARE)
+        [window->ns.object setContentMinSize:NSMakeSize(0, 0)];
+    else
+        [window->ns.object setContentMinSize:NSMakeSize(minwidth, minheight)];
+
+    if (maxwidth == GLFW_DONT_CARE || maxheight == GLFW_DONT_CARE)
+        [window->ns.object setContentMaxSize:NSMakeSize(DBL_MAX, DBL_MAX)];
+    else
+        [window->ns.object setContentMaxSize:NSMakeSize(maxwidth, maxheight)];
+
+    } // autoreleasepool
+}
+
+void _glfwSetWindowAspectRatioCocoa(_GLFWwindow* window, int numer, int denom)
+{
+    @autoreleasepool {
+    if (numer == GLFW_DONT_CARE || denom == GLFW_DONT_CARE)
+        [window->ns.object setResizeIncrements:NSMakeSize(1.0, 1.0)];
+    else
+        [window->ns.object setContentAspectRatio:NSMakeSize(numer, denom)];
+    } // autoreleasepool
+}
+
+void _glfwGetFramebufferSizeCocoa(_GLFWwindow* window, int* width, int* height)
+{
+    @autoreleasepool {
+
+    const NSRect contentRect = [window->ns.view frame];
+    const NSRect fbRect = [window->ns.view convertRectToBacking:contentRect];
+
+    if (width)
+        *width = (int) fbRect.size.width;
+    if (height)
+        *height = (int) fbRect.size.height;
+
+    } // autoreleasepool
+}
+
+void _glfwGetWindowFrameSizeCocoa(_GLFWwindow* window,
+                                  int* left, int* top,
+                                  int* right, int* bottom)
+{
+    @autoreleasepool {
+
+    const NSRect contentRect = [window->ns.view frame];
+    const NSRect frameRect = [window->ns.object frameRectForContentRect:contentRect];
+
+    if (left)
+        *left = contentRect.origin.x - frameRect.origin.x;
+    if (top)
+        *top = frameRect.origin.y + frameRect.size.height -
+               contentRect.origin.y - contentRect.size.height;
+    if (right)
+        *right = frameRect.origin.x + frameRect.size.width -
+                 contentRect.origin.x - contentRect.size.width;
+    if (bottom)
+        *bottom = contentRect.origin.y - frameRect.origin.y;
+
+    } // autoreleasepool
+}
+
+void _glfwGetWindowContentScaleCocoa(_GLFWwindow* window,
+                                     float* xscale, float* yscale)
+{
+    @autoreleasepool {
+
+    const NSRect points = [window->ns.view frame];
+    const NSRect pixels = [window->ns.view convertRectToBacking:points];
+
+    if (xscale)
+        *xscale = (float) (pixels.size.width / points.size.width);
+    if (yscale)
+        *yscale = (float) (pixels.size.height / points.size.height);
+
+    } // autoreleasepool
+}
+
+void _glfwIconifyWindowCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+    [window->ns.object miniaturize:nil];
+    } // autoreleasepool
+}
+
+void _glfwRestoreWindowCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+    if ([window->ns.object isMiniaturized])
+        [window->ns.object deminiaturize:nil];
+    else if ([window->ns.object isZoomed])
+        [window->ns.object zoom:nil];
+    } // autoreleasepool
+}
+
+void _glfwMaximizeWindowCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+    if (![window->ns.object isZoomed])
+        [window->ns.object zoom:nil];
+    } // autoreleasepool
+}
+
+void _glfwShowWindowCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+    [window->ns.object orderFront:nil];
+    } // autoreleasepool
+}
+
+void _glfwHideWindowCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+    [window->ns.object orderOut:nil];
+    } // autoreleasepool
+}
+
+void _glfwRequestWindowAttentionCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+    [NSApp requestUserAttention:NSInformationalRequest];
+    } // autoreleasepool
+}
+
+void _glfwFocusWindowCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+    // Make us the active application
+    // HACK: This is here to prevent applications using only hidden windows from
+    //       being activated, but should probably not be done every time any
+    //       window is shown
+    [NSApp activateIgnoringOtherApps:YES];
+    [window->ns.object makeKeyAndOrderFront:nil];
+    } // autoreleasepool
+}
+
+void _glfwSetWindowMonitorCocoa(_GLFWwindow* window,
+                                _GLFWmonitor* monitor,
+                                int xpos, int ypos,
+                                int width, int height,
+                                int refreshRate)
+{
+    @autoreleasepool {
+
+    if (window->monitor == monitor)
+    {
+        if (monitor)
+        {
+            if (monitor->window == window)
+                acquireMonitor(window);
+        }
+        else
+        {
+            const NSRect contentRect =
+                NSMakeRect(xpos, _glfwTransformYCocoa(ypos + height - 1), width, height);
+            const NSUInteger styleMask = [window->ns.object styleMask];
+            const NSRect frameRect =
+                [window->ns.object frameRectForContentRect:contentRect
+                                                 styleMask:styleMask];
+
+            [window->ns.object setFrame:frameRect display:YES];
+        }
+
+        return;
+    }
+
+    if (window->monitor)
+        releaseMonitor(window);
+
+    _glfwInputWindowMonitor(window, monitor);
+
+    // HACK: Allow the state cached in Cocoa to catch up to reality
+    // TODO: Solve this in a less terrible way
+    _glfwPollEventsCocoa();
+
+    NSUInteger styleMask = [window->ns.object styleMask];
+
+    if (window->monitor)
+    {
+        styleMask &= ~(NSWindowStyleMaskTitled | NSWindowStyleMaskClosable | NSWindowStyleMaskResizable);
+        styleMask |= NSWindowStyleMaskBorderless;
+    }
+    else
+    {
+        if (window->decorated)
+        {
+            styleMask &= ~NSWindowStyleMaskBorderless;
+            styleMask |= (NSWindowStyleMaskTitled | NSWindowStyleMaskClosable);
+        }
+
+        if (window->resizable)
+            styleMask |= NSWindowStyleMaskResizable;
+        else
+            styleMask &= ~NSWindowStyleMaskResizable;
+    }
+
+    [window->ns.object setStyleMask:styleMask];
+    // HACK: Changing the style mask can cause the first responder to be cleared
+    [window->ns.object makeFirstResponder:window->ns.view];
+
+    if (window->monitor)
+    {
+        [window->ns.object setLevel:NSMainMenuWindowLevel + 1];
+        [window->ns.object setHasShadow:NO];
+
+        acquireMonitor(window);
+    }
+    else
+    {
+        NSRect contentRect = NSMakeRect(xpos, _glfwTransformYCocoa(ypos + height - 1),
+                                        width, height);
+        NSRect frameRect = [window->ns.object frameRectForContentRect:contentRect
+                                                            styleMask:styleMask];
+        [window->ns.object setFrame:frameRect display:YES];
+
+        if (window->numer != GLFW_DONT_CARE &&
+            window->denom != GLFW_DONT_CARE)
+        {
+            [window->ns.object setContentAspectRatio:NSMakeSize(window->numer,
+                                                                window->denom)];
+        }
+
+        if (window->minwidth != GLFW_DONT_CARE &&
+            window->minheight != GLFW_DONT_CARE)
+        {
+            [window->ns.object setContentMinSize:NSMakeSize(window->minwidth,
+                                                            window->minheight)];
+        }
+
+        if (window->maxwidth != GLFW_DONT_CARE &&
+            window->maxheight != GLFW_DONT_CARE)
+        {
+            [window->ns.object setContentMaxSize:NSMakeSize(window->maxwidth,
+                                                            window->maxheight)];
+        }
+
+        if (window->floating)
+            [window->ns.object setLevel:NSFloatingWindowLevel];
+        else
+            [window->ns.object setLevel:NSNormalWindowLevel];
+
+        if (window->resizable)
+        {
+            const NSWindowCollectionBehavior behavior =
+                NSWindowCollectionBehaviorFullScreenPrimary |
+                NSWindowCollectionBehaviorManaged;
+            [window->ns.object setCollectionBehavior:behavior];
+        }
+        else
+        {
+            const NSWindowCollectionBehavior behavior =
+                NSWindowCollectionBehaviorFullScreenNone;
+            [window->ns.object setCollectionBehavior:behavior];
+        }
+
+        [window->ns.object setHasShadow:YES];
+        // HACK: Clearing NSWindowStyleMaskTitled resets and disables the window
+        //       title property but the miniwindow title property is unaffected
+        [window->ns.object setTitle:[window->ns.object miniwindowTitle]];
+    }
+
+    } // autoreleasepool
+}
+
+GLFWbool _glfwWindowFocusedCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+    return [window->ns.object isKeyWindow];
+    } // autoreleasepool
+}
+
+GLFWbool _glfwWindowIconifiedCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+    return [window->ns.object isMiniaturized];
+    } // autoreleasepool
+}
+
+GLFWbool _glfwWindowVisibleCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+    return [window->ns.object isVisible];
+    } // autoreleasepool
+}
+
+GLFWbool _glfwWindowMaximizedCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+
+    if (window->resizable)
+        return [window->ns.object isZoomed];
+    else
+        return GLFW_FALSE;
+
+    } // autoreleasepool
+}
+
+GLFWbool _glfwWindowHoveredCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+
+    const NSPoint point = [NSEvent mouseLocation];
+
+    if ([NSWindow windowNumberAtPoint:point belowWindowWithWindowNumber:0] !=
+        [window->ns.object windowNumber])
+    {
+        return GLFW_FALSE;
+    }
+
+    return NSMouseInRect(point,
+        [window->ns.object convertRectToScreen:[window->ns.view frame]], NO);
+
+    } // autoreleasepool
+}
+
+GLFWbool _glfwFramebufferTransparentCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+    return ![window->ns.object isOpaque] && ![window->ns.view isOpaque];
+    } // autoreleasepool
+}
+
+void _glfwSetWindowResizableCocoa(_GLFWwindow* window, GLFWbool enabled)
+{
+    @autoreleasepool {
+
+    const NSUInteger styleMask = [window->ns.object styleMask];
+    if (enabled)
+    {
+        [window->ns.object setStyleMask:(styleMask | NSWindowStyleMaskResizable)];
+        const NSWindowCollectionBehavior behavior =
+            NSWindowCollectionBehaviorFullScreenPrimary |
+            NSWindowCollectionBehaviorManaged;
+        [window->ns.object setCollectionBehavior:behavior];
+    }
+    else
+    {
+        [window->ns.object setStyleMask:(styleMask & ~NSWindowStyleMaskResizable)];
+        const NSWindowCollectionBehavior behavior =
+            NSWindowCollectionBehaviorFullScreenNone;
+        [window->ns.object setCollectionBehavior:behavior];
+    }
+
+    } // autoreleasepool
+}
+
+void _glfwSetWindowDecoratedCocoa(_GLFWwindow* window, GLFWbool enabled)
+{
+    @autoreleasepool {
+
+    NSUInteger styleMask = [window->ns.object styleMask];
+    if (enabled)
+    {
+        styleMask |= (NSWindowStyleMaskTitled | NSWindowStyleMaskClosable);
+        styleMask &= ~NSWindowStyleMaskBorderless;
+    }
+    else
+    {
+        styleMask |= NSWindowStyleMaskBorderless;
+        styleMask &= ~(NSWindowStyleMaskTitled | NSWindowStyleMaskClosable);
+    }
+
+    [window->ns.object setStyleMask:styleMask];
+    [window->ns.object makeFirstResponder:window->ns.view];
+
+    } // autoreleasepool
+}
+
+void _glfwSetWindowFloatingCocoa(_GLFWwindow* window, GLFWbool enabled)
+{
+    @autoreleasepool {
+    if (enabled)
+        [window->ns.object setLevel:NSFloatingWindowLevel];
+    else
+        [window->ns.object setLevel:NSNormalWindowLevel];
+    } // autoreleasepool
+}
+
+void _glfwSetWindowMousePassthroughCocoa(_GLFWwindow* window, GLFWbool enabled)
+{
+    @autoreleasepool {
+    [window->ns.object setIgnoresMouseEvents:enabled];
+    }
+}
+
+float _glfwGetWindowOpacityCocoa(_GLFWwindow* window)
+{
+    @autoreleasepool {
+    return (float) [window->ns.object alphaValue];
+    } // autoreleasepool
+}
+
+void _glfwSetWindowOpacityCocoa(_GLFWwindow* window, float opacity)
+{
+    @autoreleasepool {
+    [window->ns.object setAlphaValue:opacity];
+    } // autoreleasepool
+}
+
+void _glfwSetRawMouseMotionCocoa(_GLFWwindow *window, GLFWbool enabled)
+{
+    _glfwInputError(GLFW_FEATURE_UNIMPLEMENTED,
+                    "Cocoa: Raw mouse motion not yet implemented");
+}
+
+GLFWbool _glfwRawMouseMotionSupportedCocoa(void)
+{
+    return GLFW_FALSE;
+}
+
+void _glfwPollEventsCocoa(void)
+{
+    @autoreleasepool {
+
+    for (;;)
+    {
+        NSEvent* event = [NSApp nextEventMatchingMask:NSEventMaskAny
+                                            untilDate:[NSDate distantPast]
+                                               inMode:NSDefaultRunLoopMode
+                                              dequeue:YES];
+        if (event == nil)
+            break;
+
+        [NSApp sendEvent:event];
+    }
+
+    } // autoreleasepool
+}
+
+void _glfwWaitEventsCocoa(void)
+{
+    @autoreleasepool {
+
+    // I wanted to pass NO to dequeue:, and rely on PollEvents to
+    // dequeue and send.  For reasons not at all clear to me, passing
+    // NO to dequeue: causes this method never to return.
+    NSEvent *event = [NSApp nextEventMatchingMask:NSEventMaskAny
+                                        untilDate:[NSDate distantFuture]
+                                           inMode:NSDefaultRunLoopMode
+                                          dequeue:YES];
+    [NSApp sendEvent:event];
+
+    _glfwPollEventsCocoa();
+
+    } // autoreleasepool
+}
+
+void _glfwWaitEventsTimeoutCocoa(double timeout)
+{
+    @autoreleasepool {
+
+    NSDate* date = [NSDate dateWithTimeIntervalSinceNow:timeout];
+    NSEvent* event = [NSApp nextEventMatchingMask:NSEventMaskAny
+                                        untilDate:date
+                                           inMode:NSDefaultRunLoopMode
+                                          dequeue:YES];
+    if (event)
+        [NSApp sendEvent:event];
+
+    _glfwPollEventsCocoa();
+
+    } // autoreleasepool
+}
+
+void _glfwPostEmptyEventCocoa(void)
+{
+    @autoreleasepool {
+
+    NSEvent* event = [NSEvent otherEventWithType:NSEventTypeApplicationDefined
+                                        location:NSMakePoint(0, 0)
+                                   modifierFlags:0
+                                       timestamp:0
+                                    windowNumber:0
+                                         context:nil
+                                         subtype:0
+                                           data1:0
+                                           data2:0];
+    [NSApp postEvent:event atStart:YES];
+
+    } // autoreleasepool
+}
+
+void _glfwGetCursorPosCocoa(_GLFWwindow* window, double* xpos, double* ypos)
+{
+    @autoreleasepool {
+
+    const NSRect contentRect = [window->ns.view frame];
+    // NOTE: The returned location uses base 0,1 not 0,0
+    const NSPoint pos = [window->ns.object mouseLocationOutsideOfEventStream];
+
+    if (xpos)
+        *xpos = pos.x;
+    if (ypos)
+        *ypos = contentRect.size.height - pos.y;
+
+    } // autoreleasepool
+}
+
+void _glfwSetCursorPosCocoa(_GLFWwindow* window, double x, double y)
+{
+    @autoreleasepool {
+
+    updateCursorImage(window);
+
+    const NSRect contentRect = [window->ns.view frame];
+    // NOTE: The returned location uses base 0,1 not 0,0
+    const NSPoint pos = [window->ns.object mouseLocationOutsideOfEventStream];
+
+    window->ns.cursorWarpDeltaX += x - pos.x;
+    window->ns.cursorWarpDeltaY += y - contentRect.size.height + pos.y;
+
+    if (window->monitor)
+    {
+        CGDisplayMoveCursorToPoint(window->monitor->ns.displayID,
+                                   CGPointMake(x, y));
+    }
+    else
+    {
+        const NSRect localRect = NSMakeRect(x, contentRect.size.height - y - 1, 0, 0);
+        const NSRect globalRect = [window->ns.object convertRectToScreen:localRect];
+        const NSPoint globalPoint = globalRect.origin;
+
+        CGWarpMouseCursorPosition(CGPointMake(globalPoint.x,
+                                              _glfwTransformYCocoa(globalPoint.y)));
+    }
+
+    // HACK: Calling this right after setting the cursor position prevents macOS
+    //       from freezing the cursor for a fraction of a second afterwards
+    if (window->cursorMode != GLFW_CURSOR_DISABLED)
+        CGAssociateMouseAndMouseCursorPosition(true);
+
+    } // autoreleasepool
+}
+
+void _glfwSetCursorModeCocoa(_GLFWwindow* window, int mode)
+{
+    @autoreleasepool {
+
+    if (mode == GLFW_CURSOR_CAPTURED)
+    {
+        _glfwInputError(GLFW_FEATURE_UNIMPLEMENTED,
+                        "Cocoa: Captured cursor mode not yet implemented");
+    }
+
+    if (_glfwWindowFocusedCocoa(window))
+        updateCursorMode(window);
+
+    } // autoreleasepool
+}
+
+const char* _glfwGetScancodeNameCocoa(int scancode)
+{
+    @autoreleasepool {
+
+    if (scancode < 0 || scancode > 0xff)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Invalid scancode %i", scancode);
+        return NULL;
+    }
+
+    const int key = _glfw.ns.keycodes[scancode];
+    if (key == GLFW_KEY_UNKNOWN)
+        return NULL;
+
+    UInt32 deadKeyState = 0;
+    UniChar characters[4];
+    UniCharCount characterCount = 0;
+
+    if (UCKeyTranslate([(NSData*) _glfw.ns.unicodeData bytes],
+                       scancode,
+                       kUCKeyActionDisplay,
+                       0,
+                       LMGetKbdType(),
+                       kUCKeyTranslateNoDeadKeysBit,
+                       &deadKeyState,
+                       sizeof(characters) / sizeof(characters[0]),
+                       &characterCount,
+                       characters) != noErr)
+    {
+        return NULL;
+    }
+
+    if (!characterCount)
+        return NULL;
+
+    CFStringRef string = CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault,
+                                                            characters,
+                                                            characterCount,
+                                                            kCFAllocatorNull);
+    CFStringGetCString(string,
+                       _glfw.ns.keynames[key],
+                       sizeof(_glfw.ns.keynames[key]),
+                       kCFStringEncodingUTF8);
+    CFRelease(string);
+
+    return _glfw.ns.keynames[key];
+
+    } // autoreleasepool
+}
+
+int _glfwGetKeyScancodeCocoa(int key)
+{
+    return _glfw.ns.scancodes[key];
+}
+
+GLFWbool _glfwCreateCursorCocoa(_GLFWcursor* cursor,
+                                const GLFWimage* image,
+                                int xhot, int yhot)
+{
+    @autoreleasepool {
+
+    NSImage* native;
+    NSBitmapImageRep* rep;
+
+    rep = [[NSBitmapImageRep alloc]
+        initWithBitmapDataPlanes:NULL
+                      pixelsWide:image->width
+                      pixelsHigh:image->height
+                   bitsPerSample:8
+                 samplesPerPixel:4
+                        hasAlpha:YES
+                        isPlanar:NO
+                  colorSpaceName:NSCalibratedRGBColorSpace
+                    bitmapFormat:NSBitmapFormatAlphaNonpremultiplied
+                     bytesPerRow:image->width * 4
+                    bitsPerPixel:32];
+
+    if (rep == nil)
+        return GLFW_FALSE;
+
+    memcpy([rep bitmapData], image->pixels, image->width * image->height * 4);
+
+    native = [[NSImage alloc] initWithSize:NSMakeSize(image->width, image->height)];
+    [native addRepresentation:rep];
+
+    cursor->ns.object = [[NSCursor alloc] initWithImage:native
+                                                hotSpot:NSMakePoint(xhot, yhot)];
+
+    [native release];
+    [rep release];
+
+    if (cursor->ns.object == nil)
+        return GLFW_FALSE;
+
+    return GLFW_TRUE;
+
+    } // autoreleasepool
+}
+
+GLFWbool _glfwCreateStandardCursorCocoa(_GLFWcursor* cursor, int shape)
+{
+    @autoreleasepool {
+
+    SEL cursorSelector = NULL;
+
+    // HACK: Try to use a private message
+    switch (shape)
+    {
+        case GLFW_RESIZE_EW_CURSOR:
+            cursorSelector = NSSelectorFromString(@"_windowResizeEastWestCursor");
+            break;
+        case GLFW_RESIZE_NS_CURSOR:
+            cursorSelector = NSSelectorFromString(@"_windowResizeNorthSouthCursor");
+            break;
+        case GLFW_RESIZE_NWSE_CURSOR:
+            cursorSelector = NSSelectorFromString(@"_windowResizeNorthWestSouthEastCursor");
+            break;
+        case GLFW_RESIZE_NESW_CURSOR:
+            cursorSelector = NSSelectorFromString(@"_windowResizeNorthEastSouthWestCursor");
+            break;
+    }
+
+    if (cursorSelector && [NSCursor respondsToSelector:cursorSelector])
+    {
+        id object = [NSCursor performSelector:cursorSelector];
+        if ([object isKindOfClass:[NSCursor class]])
+            cursor->ns.object = object;
+    }
+
+    if (!cursor->ns.object)
+    {
+        switch (shape)
+        {
+            case GLFW_ARROW_CURSOR:
+                cursor->ns.object = [NSCursor arrowCursor];
+                break;
+            case GLFW_IBEAM_CURSOR:
+                cursor->ns.object = [NSCursor IBeamCursor];
+                break;
+            case GLFW_CROSSHAIR_CURSOR:
+                cursor->ns.object = [NSCursor crosshairCursor];
+                break;
+            case GLFW_POINTING_HAND_CURSOR:
+                cursor->ns.object = [NSCursor pointingHandCursor];
+                break;
+            case GLFW_RESIZE_EW_CURSOR:
+                cursor->ns.object = [NSCursor resizeLeftRightCursor];
+                break;
+            case GLFW_RESIZE_NS_CURSOR:
+                cursor->ns.object = [NSCursor resizeUpDownCursor];
+                break;
+            case GLFW_RESIZE_ALL_CURSOR:
+                cursor->ns.object = [NSCursor closedHandCursor];
+                break;
+            case GLFW_NOT_ALLOWED_CURSOR:
+                cursor->ns.object = [NSCursor operationNotAllowedCursor];
+                break;
+        }
+    }
+
+    if (!cursor->ns.object)
+    {
+        _glfwInputError(GLFW_CURSOR_UNAVAILABLE,
+                        "Cocoa: Standard cursor shape unavailable");
+        return GLFW_FALSE;
+    }
+
+    [cursor->ns.object retain];
+    return GLFW_TRUE;
+
+    } // autoreleasepool
+}
+
+void _glfwDestroyCursorCocoa(_GLFWcursor* cursor)
+{
+    @autoreleasepool {
+    if (cursor->ns.object)
+        [(NSCursor*) cursor->ns.object release];
+    } // autoreleasepool
+}
+
+void _glfwSetCursorCocoa(_GLFWwindow* window, _GLFWcursor* cursor)
+{
+    @autoreleasepool {
+    if (cursorInContentArea(window))
+        updateCursorImage(window);
+    } // autoreleasepool
+}
+
+void _glfwSetClipboardStringCocoa(const char* string)
+{
+    @autoreleasepool {
+    NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
+    [pasteboard declareTypes:@[NSPasteboardTypeString] owner:nil];
+    [pasteboard setString:@(string) forType:NSPasteboardTypeString];
+    } // autoreleasepool
+}
+
+const char* _glfwGetClipboardStringCocoa(void)
+{
+    @autoreleasepool {
+
+    NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
+
+    if (![[pasteboard types] containsObject:NSPasteboardTypeString])
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "Cocoa: Failed to retrieve string from pasteboard");
+        return NULL;
+    }
+
+    NSString* object = [pasteboard stringForType:NSPasteboardTypeString];
+    if (!object)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to retrieve object from pasteboard");
+        return NULL;
+    }
+
+    _glfw_free(_glfw.ns.clipboardString);
+    _glfw.ns.clipboardString = _glfw_strdup([object UTF8String]);
+
+    return _glfw.ns.clipboardString;
+
+    } // autoreleasepool
+}
+
+EGLenum _glfwGetEGLPlatformCocoa(EGLint** attribs)
+{
+    if (_glfw.egl.ANGLE_platform_angle)
+    {
+        int type = 0;
+
+        if (_glfw.egl.ANGLE_platform_angle_opengl)
+        {
+            if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_OPENGL)
+                type = EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE;
+        }
+
+        if (_glfw.egl.ANGLE_platform_angle_metal)
+        {
+            if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_METAL)
+                type = EGL_PLATFORM_ANGLE_TYPE_METAL_ANGLE;
+        }
+
+        if (type)
+        {
+            *attribs = _glfw_calloc(3, sizeof(EGLint));
+            (*attribs)[0] = EGL_PLATFORM_ANGLE_TYPE_ANGLE;
+            (*attribs)[1] = type;
+            (*attribs)[2] = EGL_NONE;
+            return EGL_PLATFORM_ANGLE_ANGLE;
+        }
+    }
+
+    return 0;
+}
+
+EGLNativeDisplayType _glfwGetEGLNativeDisplayCocoa(void)
+{
+    return EGL_DEFAULT_DISPLAY;
+}
+
+EGLNativeWindowType _glfwGetEGLNativeWindowCocoa(_GLFWwindow* window)
+{
+    return window->ns.layer;
+}
+
+void _glfwGetRequiredInstanceExtensionsCocoa(char** extensions)
+{
+    if (_glfw.vk.KHR_surface && _glfw.vk.EXT_metal_surface)
+    {
+        extensions[0] = "VK_KHR_surface";
+        extensions[1] = "VK_EXT_metal_surface";
+    }
+    else if (_glfw.vk.KHR_surface && _glfw.vk.MVK_macos_surface)
+    {
+        extensions[0] = "VK_KHR_surface";
+        extensions[1] = "VK_MVK_macos_surface";
+    }
+}
+
+GLFWbool _glfwGetPhysicalDevicePresentationSupportCocoa(VkInstance instance,
+                                                        VkPhysicalDevice device,
+                                                        uint32_t queuefamily)
+{
+    return GLFW_TRUE;
+}
+
+VkResult _glfwCreateWindowSurfaceCocoa(VkInstance instance,
+                                       _GLFWwindow* window,
+                                       const VkAllocationCallbacks* allocator,
+                                       VkSurfaceKHR* surface)
+{
+    @autoreleasepool {
+
+    // NOTE: Create the layer here as makeBackingLayer should not return nil
+    window->ns.layer = [CAMetalLayer layer];
+    if (!window->ns.layer)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to create layer for view");
+        return VK_ERROR_EXTENSION_NOT_PRESENT;
+    }
+
+    if (window->ns.scaleFramebuffer)
+        [window->ns.layer setContentsScale:[window->ns.object backingScaleFactor]];
+
+    [window->ns.view setLayer:window->ns.layer];
+    [window->ns.view setWantsLayer:YES];
+
+    VkResult err;
+
+    if (_glfw.vk.EXT_metal_surface)
+    {
+        VkMetalSurfaceCreateInfoEXT sci;
+
+        PFN_vkCreateMetalSurfaceEXT vkCreateMetalSurfaceEXT;
+        vkCreateMetalSurfaceEXT = (PFN_vkCreateMetalSurfaceEXT)
+            vkGetInstanceProcAddr(instance, "vkCreateMetalSurfaceEXT");
+        if (!vkCreateMetalSurfaceEXT)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "Cocoa: Vulkan instance missing VK_EXT_metal_surface extension");
+            return VK_ERROR_EXTENSION_NOT_PRESENT;
+        }
+
+        memset(&sci, 0, sizeof(sci));
+        sci.sType = VK_STRUCTURE_TYPE_METAL_SURFACE_CREATE_INFO_EXT;
+        sci.pLayer = window->ns.layer;
+
+        err = vkCreateMetalSurfaceEXT(instance, &sci, allocator, surface);
+    }
+    else
+    {
+        VkMacOSSurfaceCreateInfoMVK sci;
+
+        PFN_vkCreateMacOSSurfaceMVK vkCreateMacOSSurfaceMVK;
+        vkCreateMacOSSurfaceMVK = (PFN_vkCreateMacOSSurfaceMVK)
+            vkGetInstanceProcAddr(instance, "vkCreateMacOSSurfaceMVK");
+        if (!vkCreateMacOSSurfaceMVK)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "Cocoa: Vulkan instance missing VK_MVK_macos_surface extension");
+            return VK_ERROR_EXTENSION_NOT_PRESENT;
+        }
+
+        memset(&sci, 0, sizeof(sci));
+        sci.sType = VK_STRUCTURE_TYPE_MACOS_SURFACE_CREATE_INFO_MVK;
+        sci.pView = window->ns.view;
+
+        err = vkCreateMacOSSurfaceMVK(instance, &sci, allocator, surface);
+    }
+
+    if (err)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to create Vulkan surface: %s",
+                        _glfwGetVulkanResultString(err));
+    }
+
+    return err;
+
+    } // autoreleasepool
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI id glfwGetCocoaWindow(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(nil);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_COCOA)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE,
+                        "Cocoa: Platform not initialized");
+        return nil;
+    }
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    return window->ns.object;
+}
+
+GLFWAPI id glfwGetCocoaView(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(nil);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_COCOA)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE,
+                        "Cocoa: Platform not initialized");
+        return nil;
+    }
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    return window->ns.view;
+}
+
+#endif // _GLFW_COCOA
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/context.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/context.c
new file mode 100644
index 000000000000..f4fa63ad7f3c
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/context.c
@@ -0,0 +1,765 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2016 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include <limits.h>
+#include <stdio.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Checks whether the desired context attributes are valid
+//
+// This function checks things like whether the specified client API version
+// exists and whether all relevant options have supported and non-conflicting
+// values
+//
+GLFWbool _glfwIsValidContextConfig(const _GLFWctxconfig* ctxconfig)
+{
+    if (ctxconfig->source != GLFW_NATIVE_CONTEXT_API &&
+        ctxconfig->source != GLFW_EGL_CONTEXT_API &&
+        ctxconfig->source != GLFW_OSMESA_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM,
+                        "Invalid context creation API 0x%08X",
+                        ctxconfig->source);
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->client != GLFW_NO_API &&
+        ctxconfig->client != GLFW_OPENGL_API &&
+        ctxconfig->client != GLFW_OPENGL_ES_API)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM,
+                        "Invalid client API 0x%08X",
+                        ctxconfig->client);
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->share)
+    {
+        if (ctxconfig->client == GLFW_NO_API ||
+            ctxconfig->share->context.client == GLFW_NO_API)
+        {
+            _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+            return GLFW_FALSE;
+        }
+
+        if (ctxconfig->source != ctxconfig->share->context.source)
+        {
+            _glfwInputError(GLFW_INVALID_ENUM,
+                            "Context creation APIs do not match between contexts");
+            return GLFW_FALSE;
+        }
+    }
+
+    if (ctxconfig->client == GLFW_OPENGL_API)
+    {
+        if ((ctxconfig->major < 1 || ctxconfig->minor < 0) ||
+            (ctxconfig->major == 1 && ctxconfig->minor > 5) ||
+            (ctxconfig->major == 2 && ctxconfig->minor > 1) ||
+            (ctxconfig->major == 3 && ctxconfig->minor > 3))
+        {
+            // OpenGL 1.0 is the smallest valid version
+            // OpenGL 1.x series ended with version 1.5
+            // OpenGL 2.x series ended with version 2.1
+            // OpenGL 3.x series ended with version 3.3
+            // For now, let everything else through
+
+            _glfwInputError(GLFW_INVALID_VALUE,
+                            "Invalid OpenGL version %i.%i",
+                            ctxconfig->major, ctxconfig->minor);
+            return GLFW_FALSE;
+        }
+
+        if (ctxconfig->profile)
+        {
+            if (ctxconfig->profile != GLFW_OPENGL_CORE_PROFILE &&
+                ctxconfig->profile != GLFW_OPENGL_COMPAT_PROFILE)
+            {
+                _glfwInputError(GLFW_INVALID_ENUM,
+                                "Invalid OpenGL profile 0x%08X",
+                                ctxconfig->profile);
+                return GLFW_FALSE;
+            }
+
+            if (ctxconfig->major <= 2 ||
+                (ctxconfig->major == 3 && ctxconfig->minor < 2))
+            {
+                // Desktop OpenGL context profiles are only defined for version 3.2
+                // and above
+
+                _glfwInputError(GLFW_INVALID_VALUE,
+                                "Context profiles are only defined for OpenGL version 3.2 and above");
+                return GLFW_FALSE;
+            }
+        }
+
+        if (ctxconfig->forward && ctxconfig->major <= 2)
+        {
+            // Forward-compatible contexts are only defined for OpenGL version 3.0 and above
+            _glfwInputError(GLFW_INVALID_VALUE,
+                            "Forward-compatibility is only defined for OpenGL version 3.0 and above");
+            return GLFW_FALSE;
+        }
+    }
+    else if (ctxconfig->client == GLFW_OPENGL_ES_API)
+    {
+        if (ctxconfig->major < 1 || ctxconfig->minor < 0 ||
+            (ctxconfig->major == 1 && ctxconfig->minor > 1) ||
+            (ctxconfig->major == 2 && ctxconfig->minor > 0))
+        {
+            // OpenGL ES 1.0 is the smallest valid version
+            // OpenGL ES 1.x series ended with version 1.1
+            // OpenGL ES 2.x series ended with version 2.0
+            // For now, let everything else through
+
+            _glfwInputError(GLFW_INVALID_VALUE,
+                            "Invalid OpenGL ES version %i.%i",
+                            ctxconfig->major, ctxconfig->minor);
+            return GLFW_FALSE;
+        }
+    }
+
+    if (ctxconfig->robustness)
+    {
+        if (ctxconfig->robustness != GLFW_NO_RESET_NOTIFICATION &&
+            ctxconfig->robustness != GLFW_LOSE_CONTEXT_ON_RESET)
+        {
+            _glfwInputError(GLFW_INVALID_ENUM,
+                            "Invalid context robustness mode 0x%08X",
+                            ctxconfig->robustness);
+            return GLFW_FALSE;
+        }
+    }
+
+    if (ctxconfig->release)
+    {
+        if (ctxconfig->release != GLFW_RELEASE_BEHAVIOR_NONE &&
+            ctxconfig->release != GLFW_RELEASE_BEHAVIOR_FLUSH)
+        {
+            _glfwInputError(GLFW_INVALID_ENUM,
+                            "Invalid context release behavior 0x%08X",
+                            ctxconfig->release);
+            return GLFW_FALSE;
+        }
+    }
+
+    return GLFW_TRUE;
+}
+
+// Chooses the framebuffer config that best matches the desired one
+//
+const _GLFWfbconfig* _glfwChooseFBConfig(const _GLFWfbconfig* desired,
+                                         const _GLFWfbconfig* alternatives,
+                                         unsigned int count)
+{
+    unsigned int i;
+    unsigned int missing, leastMissing = UINT_MAX;
+    unsigned int colorDiff, leastColorDiff = UINT_MAX;
+    unsigned int extraDiff, leastExtraDiff = UINT_MAX;
+    const _GLFWfbconfig* current;
+    const _GLFWfbconfig* closest = NULL;
+
+    for (i = 0;  i < count;  i++)
+    {
+        current = alternatives + i;
+
+        if (desired->stereo > 0 && current->stereo == 0)
+        {
+            // Stereo is a hard constraint
+            continue;
+        }
+
+        // Count number of missing buffers
+        {
+            missing = 0;
+
+            if (desired->alphaBits > 0 && current->alphaBits == 0)
+                missing++;
+
+            if (desired->depthBits > 0 && current->depthBits == 0)
+                missing++;
+
+            if (desired->stencilBits > 0 && current->stencilBits == 0)
+                missing++;
+
+            if (desired->auxBuffers > 0 &&
+                current->auxBuffers < desired->auxBuffers)
+            {
+                missing += desired->auxBuffers - current->auxBuffers;
+            }
+
+            if (desired->samples > 0 && current->samples == 0)
+            {
+                // Technically, several multisampling buffers could be
+                // involved, but that's a lower level implementation detail and
+                // not important to us here, so we count them as one
+                missing++;
+            }
+
+            if (desired->transparent != current->transparent)
+                missing++;
+        }
+
+        // These polynomials make many small channel size differences matter
+        // less than one large channel size difference
+
+        // Calculate color channel size difference value
+        {
+            colorDiff = 0;
+
+            if (desired->redBits != GLFW_DONT_CARE)
+            {
+                colorDiff += (desired->redBits - current->redBits) *
+                             (desired->redBits - current->redBits);
+            }
+
+            if (desired->greenBits != GLFW_DONT_CARE)
+            {
+                colorDiff += (desired->greenBits - current->greenBits) *
+                             (desired->greenBits - current->greenBits);
+            }
+
+            if (desired->blueBits != GLFW_DONT_CARE)
+            {
+                colorDiff += (desired->blueBits - current->blueBits) *
+                             (desired->blueBits - current->blueBits);
+            }
+        }
+
+        // Calculate non-color channel size difference value
+        {
+            extraDiff = 0;
+
+            if (desired->alphaBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->alphaBits - current->alphaBits) *
+                             (desired->alphaBits - current->alphaBits);
+            }
+
+            if (desired->depthBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->depthBits - current->depthBits) *
+                             (desired->depthBits - current->depthBits);
+            }
+
+            if (desired->stencilBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->stencilBits - current->stencilBits) *
+                             (desired->stencilBits - current->stencilBits);
+            }
+
+            if (desired->accumRedBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->accumRedBits - current->accumRedBits) *
+                             (desired->accumRedBits - current->accumRedBits);
+            }
+
+            if (desired->accumGreenBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->accumGreenBits - current->accumGreenBits) *
+                             (desired->accumGreenBits - current->accumGreenBits);
+            }
+
+            if (desired->accumBlueBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->accumBlueBits - current->accumBlueBits) *
+                             (desired->accumBlueBits - current->accumBlueBits);
+            }
+
+            if (desired->accumAlphaBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->accumAlphaBits - current->accumAlphaBits) *
+                             (desired->accumAlphaBits - current->accumAlphaBits);
+            }
+
+            if (desired->samples != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->samples - current->samples) *
+                             (desired->samples - current->samples);
+            }
+
+            if (desired->sRGB && !current->sRGB)
+                extraDiff++;
+        }
+
+        // Figure out if the current one is better than the best one found so far
+        // Least number of missing buffers is the most important heuristic,
+        // then color buffer size match and lastly size match for other buffers
+
+        if (missing < leastMissing)
+            closest = current;
+        else if (missing == leastMissing)
+        {
+            if ((colorDiff < leastColorDiff) ||
+                (colorDiff == leastColorDiff && extraDiff < leastExtraDiff))
+            {
+                closest = current;
+            }
+        }
+
+        if (current == closest)
+        {
+            leastMissing = missing;
+            leastColorDiff = colorDiff;
+            leastExtraDiff = extraDiff;
+        }
+    }
+
+    return closest;
+}
+
+// Retrieves the attributes of the current context
+//
+GLFWbool _glfwRefreshContextAttribs(_GLFWwindow* window,
+                                    const _GLFWctxconfig* ctxconfig)
+{
+    int i;
+    _GLFWwindow* previous;
+    const char* version;
+    const char* prefixes[] =
+    {
+        "OpenGL ES-CM ",
+        "OpenGL ES-CL ",
+        "OpenGL ES ",
+        NULL
+    };
+
+    window->context.source = ctxconfig->source;
+    window->context.client = GLFW_OPENGL_API;
+
+    previous = _glfwPlatformGetTls(&_glfw.contextSlot);
+    glfwMakeContextCurrent((GLFWwindow*) window);
+    if (_glfwPlatformGetTls(&_glfw.contextSlot) != window)
+        return GLFW_FALSE;
+
+    window->context.GetIntegerv = (PFNGLGETINTEGERVPROC)
+        window->context.getProcAddress("glGetIntegerv");
+    window->context.GetString = (PFNGLGETSTRINGPROC)
+        window->context.getProcAddress("glGetString");
+    if (!window->context.GetIntegerv || !window->context.GetString)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Entry point retrieval is broken");
+        glfwMakeContextCurrent((GLFWwindow*) previous);
+        return GLFW_FALSE;
+    }
+
+    version = (const char*) window->context.GetString(GL_VERSION);
+    if (!version)
+    {
+        if (ctxconfig->client == GLFW_OPENGL_API)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "OpenGL version string retrieval is broken");
+        }
+        else
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "OpenGL ES version string retrieval is broken");
+        }
+
+        glfwMakeContextCurrent((GLFWwindow*) previous);
+        return GLFW_FALSE;
+    }
+
+    for (i = 0;  prefixes[i];  i++)
+    {
+        const size_t length = strlen(prefixes[i]);
+
+        if (strncmp(version, prefixes[i], length) == 0)
+        {
+            version += length;
+            window->context.client = GLFW_OPENGL_ES_API;
+            break;
+        }
+    }
+
+    if (!sscanf(version, "%d.%d.%d",
+                &window->context.major,
+                &window->context.minor,
+                &window->context.revision))
+    {
+        if (window->context.client == GLFW_OPENGL_API)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "No version found in OpenGL version string");
+        }
+        else
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "No version found in OpenGL ES version string");
+        }
+
+        glfwMakeContextCurrent((GLFWwindow*) previous);
+        return GLFW_FALSE;
+    }
+
+    if (window->context.major < ctxconfig->major ||
+        (window->context.major == ctxconfig->major &&
+         window->context.minor < ctxconfig->minor))
+    {
+        // The desired OpenGL version is greater than the actual version
+        // This only happens if the machine lacks {GLX|WGL}_ARB_create_context
+        // /and/ the user has requested an OpenGL version greater than 1.0
+
+        // For API consistency, we emulate the behavior of the
+        // {GLX|WGL}_ARB_create_context extension and fail here
+
+        if (window->context.client == GLFW_OPENGL_API)
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "Requested OpenGL version %i.%i, got version %i.%i",
+                            ctxconfig->major, ctxconfig->minor,
+                            window->context.major, window->context.minor);
+        }
+        else
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "Requested OpenGL ES version %i.%i, got version %i.%i",
+                            ctxconfig->major, ctxconfig->minor,
+                            window->context.major, window->context.minor);
+        }
+
+        glfwMakeContextCurrent((GLFWwindow*) previous);
+        return GLFW_FALSE;
+    }
+
+    if (window->context.major >= 3)
+    {
+        // OpenGL 3.0+ uses a different function for extension string retrieval
+        // We cache it here instead of in glfwExtensionSupported mostly to alert
+        // users as early as possible that their build may be broken
+
+        window->context.GetStringi = (PFNGLGETSTRINGIPROC)
+            window->context.getProcAddress("glGetStringi");
+        if (!window->context.GetStringi)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Entry point retrieval is broken");
+            glfwMakeContextCurrent((GLFWwindow*) previous);
+            return GLFW_FALSE;
+        }
+    }
+
+    if (window->context.client == GLFW_OPENGL_API)
+    {
+        // Read back context flags (OpenGL 3.0 and above)
+        if (window->context.major >= 3)
+        {
+            GLint flags;
+            window->context.GetIntegerv(GL_CONTEXT_FLAGS, &flags);
+
+            if (flags & GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT)
+                window->context.forward = GLFW_TRUE;
+
+            if (flags & GL_CONTEXT_FLAG_DEBUG_BIT)
+                window->context.debug = GLFW_TRUE;
+            else if (glfwExtensionSupported("GL_ARB_debug_output") &&
+                     ctxconfig->debug)
+            {
+                // HACK: This is a workaround for older drivers (pre KHR_debug)
+                //       not setting the debug bit in the context flags for
+                //       debug contexts
+                window->context.debug = GLFW_TRUE;
+            }
+
+            if (flags & GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR)
+                window->context.noerror = GLFW_TRUE;
+        }
+
+        // Read back OpenGL context profile (OpenGL 3.2 and above)
+        if (window->context.major >= 4 ||
+            (window->context.major == 3 && window->context.minor >= 2))
+        {
+            GLint mask;
+            window->context.GetIntegerv(GL_CONTEXT_PROFILE_MASK, &mask);
+
+            if (mask & GL_CONTEXT_COMPATIBILITY_PROFILE_BIT)
+                window->context.profile = GLFW_OPENGL_COMPAT_PROFILE;
+            else if (mask & GL_CONTEXT_CORE_PROFILE_BIT)
+                window->context.profile = GLFW_OPENGL_CORE_PROFILE;
+            else if (glfwExtensionSupported("GL_ARB_compatibility"))
+            {
+                // HACK: This is a workaround for the compatibility profile bit
+                //       not being set in the context flags if an OpenGL 3.2+
+                //       context was created without having requested a specific
+                //       version
+                window->context.profile = GLFW_OPENGL_COMPAT_PROFILE;
+            }
+        }
+
+        // Read back robustness strategy
+        if (glfwExtensionSupported("GL_ARB_robustness"))
+        {
+            // NOTE: We avoid using the context flags for detection, as they are
+            //       only present from 3.0 while the extension applies from 1.1
+
+            GLint strategy;
+            window->context.GetIntegerv(GL_RESET_NOTIFICATION_STRATEGY_ARB,
+                                        &strategy);
+
+            if (strategy == GL_LOSE_CONTEXT_ON_RESET_ARB)
+                window->context.robustness = GLFW_LOSE_CONTEXT_ON_RESET;
+            else if (strategy == GL_NO_RESET_NOTIFICATION_ARB)
+                window->context.robustness = GLFW_NO_RESET_NOTIFICATION;
+        }
+    }
+    else
+    {
+        // Read back robustness strategy
+        if (glfwExtensionSupported("GL_EXT_robustness"))
+        {
+            // NOTE: The values of these constants match those of the OpenGL ARB
+            //       one, so we can reuse them here
+
+            GLint strategy;
+            window->context.GetIntegerv(GL_RESET_NOTIFICATION_STRATEGY_ARB,
+                                        &strategy);
+
+            if (strategy == GL_LOSE_CONTEXT_ON_RESET_ARB)
+                window->context.robustness = GLFW_LOSE_CONTEXT_ON_RESET;
+            else if (strategy == GL_NO_RESET_NOTIFICATION_ARB)
+                window->context.robustness = GLFW_NO_RESET_NOTIFICATION;
+        }
+    }
+
+    if (glfwExtensionSupported("GL_KHR_context_flush_control"))
+    {
+        GLint behavior;
+        window->context.GetIntegerv(GL_CONTEXT_RELEASE_BEHAVIOR, &behavior);
+
+        if (behavior == GL_NONE)
+            window->context.release = GLFW_RELEASE_BEHAVIOR_NONE;
+        else if (behavior == GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH)
+            window->context.release = GLFW_RELEASE_BEHAVIOR_FLUSH;
+    }
+
+    // Clearing the front buffer to black to avoid garbage pixels left over from
+    // previous uses of our bit of VRAM
+    {
+        PFNGLCLEARPROC glClear = (PFNGLCLEARPROC)
+            window->context.getProcAddress("glClear");
+        glClear(GL_COLOR_BUFFER_BIT);
+
+        if (window->doublebuffer)
+            window->context.swapBuffers(window);
+    }
+
+    glfwMakeContextCurrent((GLFWwindow*) previous);
+    return GLFW_TRUE;
+}
+
+// Searches an extension string for the specified extension
+//
+GLFWbool _glfwStringInExtensionString(const char* string, const char* extensions)
+{
+    const char* start = extensions;
+
+    for (;;)
+    {
+        const char* where;
+        const char* terminator;
+
+        where = strstr(start, string);
+        if (!where)
+            return GLFW_FALSE;
+
+        terminator = where + strlen(string);
+        if (where == start || *(where - 1) == ' ')
+        {
+            if (*terminator == ' ' || *terminator == '\0')
+                break;
+        }
+
+        start = terminator;
+    }
+
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW public API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI void glfwMakeContextCurrent(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    _GLFWwindow* previous;
+
+    previous = _glfwPlatformGetTls(&_glfw.contextSlot);
+
+    if (window && window->context.client == GLFW_NO_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT,
+                        "Cannot make current with a window that has no OpenGL or OpenGL ES context");
+        return;
+    }
+
+    if (previous)
+    {
+        if (!window || window->context.source != previous->context.source)
+            previous->context.makeCurrent(NULL);
+    }
+
+    if (window)
+        window->context.makeCurrent(window);
+}
+
+GLFWAPI GLFWwindow* glfwGetCurrentContext(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return _glfwPlatformGetTls(&_glfw.contextSlot);
+}
+
+GLFWAPI void glfwSwapBuffers(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->context.client == GLFW_NO_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT,
+                        "Cannot swap buffers of a window that has no OpenGL or OpenGL ES context");
+        return;
+    }
+
+    window->context.swapBuffers(window);
+}
+
+GLFWAPI void glfwSwapInterval(int interval)
+{
+    _GLFWwindow* window;
+
+    _GLFW_REQUIRE_INIT();
+
+    window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    if (!window)
+    {
+        _glfwInputError(GLFW_NO_CURRENT_CONTEXT,
+                        "Cannot set swap interval without a current OpenGL or OpenGL ES context");
+        return;
+    }
+
+    window->context.swapInterval(interval);
+}
+
+GLFWAPI int glfwExtensionSupported(const char* extension)
+{
+    _GLFWwindow* window;
+    assert(extension != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+
+    window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    if (!window)
+    {
+        _glfwInputError(GLFW_NO_CURRENT_CONTEXT,
+                        "Cannot query extension without a current OpenGL or OpenGL ES context");
+        return GLFW_FALSE;
+    }
+
+    if (*extension == '\0')
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Extension name cannot be an empty string");
+        return GLFW_FALSE;
+    }
+
+    if (window->context.major >= 3)
+    {
+        int i;
+        GLint count;
+
+        // Check if extension is in the modern OpenGL extensions string list
+
+        window->context.GetIntegerv(GL_NUM_EXTENSIONS, &count);
+
+        for (i = 0;  i < count;  i++)
+        {
+            const char* en = (const char*)
+                window->context.GetStringi(GL_EXTENSIONS, i);
+            if (!en)
+            {
+                _glfwInputError(GLFW_PLATFORM_ERROR,
+                                "Extension string retrieval is broken");
+                return GLFW_FALSE;
+            }
+
+            if (strcmp(en, extension) == 0)
+                return GLFW_TRUE;
+        }
+    }
+    else
+    {
+        // Check if extension is in the old style OpenGL extensions string
+
+        const char* extensions = (const char*)
+            window->context.GetString(GL_EXTENSIONS);
+        if (!extensions)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Extension string retrieval is broken");
+            return GLFW_FALSE;
+        }
+
+        if (_glfwStringInExtensionString(extension, extensions))
+            return GLFW_TRUE;
+    }
+
+    // Check if extension is in the platform-specific string
+    return window->context.extensionSupported(extension);
+}
+
+GLFWAPI GLFWglproc glfwGetProcAddress(const char* procname)
+{
+    _GLFWwindow* window;
+    assert(procname != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    if (!window)
+    {
+        _glfwInputError(GLFW_NO_CURRENT_CONTEXT,
+                        "Cannot query entry point without a current OpenGL or OpenGL ES context");
+        return NULL;
+    }
+
+    return window->context.getProcAddress(procname);
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/egl_context.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/egl_context.c
new file mode 100644
index 000000000000..517c64cb2ba1
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/egl_context.c
@@ -0,0 +1,948 @@
+//========================================================================
+// GLFW 3.5 EGL - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+
+
+// Return a description of the specified EGL error
+//
+static const char* getEGLErrorString(EGLint error)
+{
+    switch (error)
+    {
+        case EGL_SUCCESS:
+            return "Success";
+        case EGL_NOT_INITIALIZED:
+            return "EGL is not or could not be initialized";
+        case EGL_BAD_ACCESS:
+            return "EGL cannot access a requested resource";
+        case EGL_BAD_ALLOC:
+            return "EGL failed to allocate resources for the requested operation";
+        case EGL_BAD_ATTRIBUTE:
+            return "An unrecognized attribute or attribute value was passed in the attribute list";
+        case EGL_BAD_CONTEXT:
+            return "An EGLContext argument does not name a valid EGL rendering context";
+        case EGL_BAD_CONFIG:
+            return "An EGLConfig argument does not name a valid EGL frame buffer configuration";
+        case EGL_BAD_CURRENT_SURFACE:
+            return "The current surface of the calling thread is a window, pixel buffer or pixmap that is no longer valid";
+        case EGL_BAD_DISPLAY:
+            return "An EGLDisplay argument does not name a valid EGL display connection";
+        case EGL_BAD_SURFACE:
+            return "An EGLSurface argument does not name a valid surface configured for GL rendering";
+        case EGL_BAD_MATCH:
+            return "Arguments are inconsistent";
+        case EGL_BAD_PARAMETER:
+            return "One or more argument values are invalid";
+        case EGL_BAD_NATIVE_PIXMAP:
+            return "A NativePixmapType argument does not refer to a valid native pixmap";
+        case EGL_BAD_NATIVE_WINDOW:
+            return "A NativeWindowType argument does not refer to a valid native window";
+        case EGL_CONTEXT_LOST:
+            return "The application must destroy all contexts and reinitialise";
+        default:
+            return "ERROR: UNKNOWN EGL ERROR";
+    }
+}
+
+// Returns the specified attribute of the specified EGLConfig
+//
+static int getEGLConfigAttrib(EGLConfig config, int attrib)
+{
+    int value;
+    eglGetConfigAttrib(_glfw.egl.display, config, attrib, &value);
+    return value;
+}
+
+// Return the EGLConfig most closely matching the specified hints
+//
+static GLFWbool chooseEGLConfig(const _GLFWctxconfig* ctxconfig,
+                                const _GLFWfbconfig* fbconfig,
+                                EGLConfig* result)
+{
+    EGLConfig* nativeConfigs;
+    _GLFWfbconfig* usableConfigs;
+    const _GLFWfbconfig* closest;
+    int i, nativeCount, usableCount, apiBit, surfaceTypeBit;
+    GLFWbool wrongApiAvailable = GLFW_FALSE;
+
+    if (ctxconfig->client == GLFW_OPENGL_ES_API)
+    {
+        if (ctxconfig->major == 1)
+            apiBit = EGL_OPENGL_ES_BIT;
+        else
+            apiBit = EGL_OPENGL_ES2_BIT;
+    }
+    else
+        apiBit = EGL_OPENGL_BIT;
+
+    if (_glfw.egl.platform == EGL_PLATFORM_SURFACELESS_MESA)
+        surfaceTypeBit = EGL_PBUFFER_BIT;
+    else
+        surfaceTypeBit = EGL_WINDOW_BIT;
+
+    if (fbconfig->stereo)
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE, "EGL: Stereo rendering not supported");
+        return GLFW_FALSE;
+    }
+
+    eglGetConfigs(_glfw.egl.display, NULL, 0, &nativeCount);
+    if (!nativeCount)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "EGL: No EGLConfigs returned");
+        return GLFW_FALSE;
+    }
+
+    nativeConfigs = _glfw_calloc(nativeCount, sizeof(EGLConfig));
+    eglGetConfigs(_glfw.egl.display, nativeConfigs, nativeCount, &nativeCount);
+
+    usableConfigs = _glfw_calloc(nativeCount, sizeof(_GLFWfbconfig));
+    usableCount = 0;
+
+    for (i = 0;  i < nativeCount;  i++)
+    {
+        const EGLConfig n = nativeConfigs[i];
+        _GLFWfbconfig* u = usableConfigs + usableCount;
+
+        // Only consider RGB(A) EGLConfigs
+        if (getEGLConfigAttrib(n, EGL_COLOR_BUFFER_TYPE) != EGL_RGB_BUFFER)
+            continue;
+
+        if (!(getEGLConfigAttrib(n, EGL_SURFACE_TYPE) & surfaceTypeBit))
+            continue;
+
+#if defined(_GLFW_X11)
+        if (_glfw.platform.platformID == GLFW_PLATFORM_X11)
+        {
+            XVisualInfo vi = {0};
+
+            // Only consider EGLConfigs with associated Visuals
+            vi.visualid = getEGLConfigAttrib(n, EGL_NATIVE_VISUAL_ID);
+            if (!vi.visualid)
+                continue;
+
+            if (fbconfig->transparent)
+            {
+                int count;
+                XVisualInfo* vis =
+                    XGetVisualInfo(_glfw.x11.display, VisualIDMask, &vi, &count);
+                if (vis)
+                {
+                    u->transparent = _glfwIsVisualTransparentX11(vis[0].visual);
+                    XFree(vis);
+                }
+            }
+        }
+#endif // _GLFW_X11
+
+        if (!(getEGLConfigAttrib(n, EGL_RENDERABLE_TYPE) & apiBit))
+        {
+            wrongApiAvailable = GLFW_TRUE;
+            continue;
+        }
+
+        u->redBits = getEGLConfigAttrib(n, EGL_RED_SIZE);
+        u->greenBits = getEGLConfigAttrib(n, EGL_GREEN_SIZE);
+        u->blueBits = getEGLConfigAttrib(n, EGL_BLUE_SIZE);
+
+        u->alphaBits = getEGLConfigAttrib(n, EGL_ALPHA_SIZE);
+        u->depthBits = getEGLConfigAttrib(n, EGL_DEPTH_SIZE);
+        u->stencilBits = getEGLConfigAttrib(n, EGL_STENCIL_SIZE);
+
+#if defined(_GLFW_WAYLAND)
+        if (_glfw.platform.platformID == GLFW_PLATFORM_WAYLAND)
+        {
+            // NOTE: The wl_surface opaque region is no guarantee that its buffer
+            //       is presented as opaque, if it also has an alpha channel
+            // HACK: If EGL_EXT_present_opaque is unavailable, ignore any config
+            //       with an alpha channel to ensure the buffer is opaque
+            if (!_glfw.egl.EXT_present_opaque)
+            {
+                if (!fbconfig->transparent && u->alphaBits > 0)
+                    continue;
+            }
+        }
+#endif // _GLFW_WAYLAND
+
+        u->samples = getEGLConfigAttrib(n, EGL_SAMPLES);
+        u->doublebuffer = fbconfig->doublebuffer;
+
+        u->handle = (uintptr_t) n;
+        usableCount++;
+    }
+
+    closest = _glfwChooseFBConfig(fbconfig, usableConfigs, usableCount);
+    if (closest)
+        *result = (EGLConfig) closest->handle;
+    else
+    {
+        if (wrongApiAvailable)
+        {
+            if (ctxconfig->client == GLFW_OPENGL_ES_API)
+            {
+                if (ctxconfig->major == 1)
+                {
+                    _glfwInputError(GLFW_API_UNAVAILABLE,
+                                    "EGL: Failed to find support for OpenGL ES 1.x");
+                }
+                else
+                {
+                    _glfwInputError(GLFW_API_UNAVAILABLE,
+                                    "EGL: Failed to find support for OpenGL ES 2 or later");
+                }
+            }
+            else
+            {
+                _glfwInputError(GLFW_API_UNAVAILABLE,
+                                "EGL: Failed to find support for OpenGL");
+            }
+        }
+        else
+        {
+            _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                            "EGL: Failed to find a suitable EGLConfig");
+        }
+    }
+
+    _glfw_free(nativeConfigs);
+    _glfw_free(usableConfigs);
+
+    return closest != NULL;
+}
+
+static void makeContextCurrentEGL(_GLFWwindow* window)
+{
+    if (window)
+    {
+        if (!eglMakeCurrent(_glfw.egl.display,
+                            window->context.egl.surface,
+                            window->context.egl.surface,
+                            window->context.egl.handle))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "EGL: Failed to make context current: %s",
+                            getEGLErrorString(eglGetError()));
+            return;
+        }
+    }
+    else
+    {
+        if (!eglMakeCurrent(_glfw.egl.display,
+                            EGL_NO_SURFACE,
+                            EGL_NO_SURFACE,
+                            EGL_NO_CONTEXT))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "EGL: Failed to clear current context: %s",
+                            getEGLErrorString(eglGetError()));
+            return;
+        }
+    }
+
+    _glfwPlatformSetTls(&_glfw.contextSlot, window);
+}
+
+static void swapBuffersEGL(_GLFWwindow* window)
+{
+    if (window != _glfwPlatformGetTls(&_glfw.contextSlot))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGL: The context must be current on the calling thread when swapping buffers");
+        return;
+    }
+
+#if defined(_GLFW_WAYLAND)
+    if (_glfw.platform.platformID == GLFW_PLATFORM_WAYLAND)
+    {
+        // NOTE: Swapping buffers on a hidden window on Wayland makes it visible
+        if (!window->wl.visible)
+            return;
+    }
+#endif
+
+    eglSwapBuffers(_glfw.egl.display, window->context.egl.surface);
+}
+
+static void swapIntervalEGL(int interval)
+{
+    eglSwapInterval(_glfw.egl.display, interval);
+}
+
+static int extensionSupportedEGL(const char* extension)
+{
+    const char* extensions = eglQueryString(_glfw.egl.display, EGL_EXTENSIONS);
+    if (extensions)
+    {
+        if (_glfwStringInExtensionString(extension, extensions))
+            return GLFW_TRUE;
+    }
+
+    return GLFW_FALSE;
+}
+
+static GLFWglproc getProcAddressEGL(const char* procname)
+{
+    _GLFWwindow* window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    assert(window != NULL);
+
+    if (window->context.egl.client)
+    {
+        GLFWglproc proc = (GLFWglproc)
+            _glfwPlatformGetModuleSymbol(window->context.egl.client, procname);
+        if (proc)
+            return proc;
+    }
+
+    return eglGetProcAddress(procname);
+}
+
+static void destroyContextEGL(_GLFWwindow* window)
+{
+    // NOTE: Do not unload libGL.so.1 while the X11 display is still open,
+    //       as it will make XCloseDisplay segfault
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11 ||
+        window->context.client != GLFW_OPENGL_API)
+    {
+        if (window->context.egl.client)
+        {
+            _glfwPlatformFreeModule(window->context.egl.client);
+            window->context.egl.client = NULL;
+        }
+    }
+
+    if (window->context.egl.surface)
+    {
+        eglDestroySurface(_glfw.egl.display, window->context.egl.surface);
+        window->context.egl.surface = EGL_NO_SURFACE;
+    }
+
+    if (window->context.egl.handle)
+    {
+        eglDestroyContext(_glfw.egl.display, window->context.egl.handle);
+        window->context.egl.handle = EGL_NO_CONTEXT;
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Initialize EGL
+//
+GLFWbool _glfwInitEGL(void)
+{
+    int i;
+    EGLint* attribs = NULL;
+    const char* extensions;
+    const char* sonames[] =
+    {
+#if defined(_GLFW_EGL_LIBRARY)
+        _GLFW_EGL_LIBRARY,
+#elif defined(_GLFW_WIN32)
+        "libEGL.dll",
+        "EGL.dll",
+#elif defined(_GLFW_COCOA)
+        "libEGL.dylib",
+#elif defined(__CYGWIN__)
+        "libEGL-1.so",
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+        "libEGL.so",
+#else
+        "libEGL.so.1",
+#endif
+        NULL
+    };
+
+    if (_glfw.egl.handle)
+        return GLFW_TRUE;
+
+    for (i = 0;  sonames[i];  i++)
+    {
+        _glfw.egl.handle = _glfwPlatformLoadModule(sonames[i]);
+        if (_glfw.egl.handle)
+            break;
+    }
+
+    if (!_glfw.egl.handle)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "EGL: Library not found");
+        return GLFW_FALSE;
+    }
+
+    _glfw.egl.prefix = (strncmp(sonames[i], "lib", 3) == 0);
+
+    _glfw.egl.GetConfigAttrib = (PFN_eglGetConfigAttrib)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglGetConfigAttrib");
+    _glfw.egl.GetConfigs = (PFN_eglGetConfigs)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglGetConfigs");
+    _glfw.egl.GetDisplay = (PFN_eglGetDisplay)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglGetDisplay");
+    _glfw.egl.GetError = (PFN_eglGetError)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglGetError");
+    _glfw.egl.Initialize = (PFN_eglInitialize)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglInitialize");
+    _glfw.egl.Terminate = (PFN_eglTerminate)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglTerminate");
+    _glfw.egl.BindAPI = (PFN_eglBindAPI)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglBindAPI");
+    _glfw.egl.CreateContext = (PFN_eglCreateContext)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglCreateContext");
+    _glfw.egl.DestroySurface = (PFN_eglDestroySurface)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglDestroySurface");
+    _glfw.egl.DestroyContext = (PFN_eglDestroyContext)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglDestroyContext");
+    _glfw.egl.CreateWindowSurface = (PFN_eglCreateWindowSurface)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglCreateWindowSurface");
+    _glfw.egl.CreatePbufferSurface = (PFN_eglCreatePbufferSurface)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglCreatePbufferSurface");
+    _glfw.egl.MakeCurrent = (PFN_eglMakeCurrent)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglMakeCurrent");
+    _glfw.egl.SwapBuffers = (PFN_eglSwapBuffers)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglSwapBuffers");
+    _glfw.egl.SwapInterval = (PFN_eglSwapInterval)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglSwapInterval");
+    _glfw.egl.QueryString = (PFN_eglQueryString)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglQueryString");
+    _glfw.egl.GetProcAddress = (PFN_eglGetProcAddress)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglGetProcAddress");
+
+    if (!_glfw.egl.GetConfigAttrib ||
+        !_glfw.egl.GetConfigs ||
+        !_glfw.egl.GetDisplay ||
+        !_glfw.egl.GetError ||
+        !_glfw.egl.Initialize ||
+        !_glfw.egl.Terminate ||
+        !_glfw.egl.BindAPI ||
+        !_glfw.egl.CreateContext ||
+        !_glfw.egl.DestroySurface ||
+        !_glfw.egl.DestroyContext ||
+        !_glfw.egl.CreateWindowSurface ||
+        !_glfw.egl.CreatePbufferSurface ||
+        !_glfw.egl.MakeCurrent ||
+        !_glfw.egl.SwapBuffers ||
+        !_glfw.egl.SwapInterval ||
+        !_glfw.egl.QueryString ||
+        !_glfw.egl.GetProcAddress)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGL: Failed to load required entry points");
+
+        _glfwTerminateEGL();
+        return GLFW_FALSE;
+    }
+
+    extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
+    if (extensions && eglGetError() == EGL_SUCCESS)
+        _glfw.egl.EXT_client_extensions = GLFW_TRUE;
+
+    if (_glfw.egl.EXT_client_extensions)
+    {
+        _glfw.egl.EXT_platform_base =
+            _glfwStringInExtensionString("EGL_EXT_platform_base", extensions);
+        _glfw.egl.EXT_platform_x11 =
+            _glfwStringInExtensionString("EGL_EXT_platform_x11", extensions);
+        _glfw.egl.EXT_platform_wayland =
+            _glfwStringInExtensionString("EGL_EXT_platform_wayland", extensions);
+        _glfw.egl.ANGLE_platform_angle =
+            _glfwStringInExtensionString("EGL_ANGLE_platform_angle", extensions);
+        _glfw.egl.ANGLE_platform_angle_opengl =
+            _glfwStringInExtensionString("EGL_ANGLE_platform_angle_opengl", extensions);
+        _glfw.egl.ANGLE_platform_angle_d3d =
+            _glfwStringInExtensionString("EGL_ANGLE_platform_angle_d3d", extensions);
+        _glfw.egl.ANGLE_platform_angle_vulkan =
+            _glfwStringInExtensionString("EGL_ANGLE_platform_angle_vulkan", extensions);
+        _glfw.egl.ANGLE_platform_angle_metal =
+            _glfwStringInExtensionString("EGL_ANGLE_platform_angle_metal", extensions);
+        _glfw.egl.MESA_platform_surfaceless =
+            _glfwStringInExtensionString("EGL_MESA_platform_surfaceless", extensions);
+    }
+
+    if (_glfw.egl.EXT_platform_base)
+    {
+        _glfw.egl.GetPlatformDisplayEXT = (PFNEGLGETPLATFORMDISPLAYEXTPROC)
+            eglGetProcAddress("eglGetPlatformDisplayEXT");
+        _glfw.egl.CreatePlatformWindowSurfaceEXT = (PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC)
+            eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT");
+    }
+
+    _glfw.egl.platform = _glfw.platform.getEGLPlatform(&attribs);
+    if (_glfw.egl.platform)
+    {
+        _glfw.egl.display =
+            eglGetPlatformDisplayEXT(_glfw.egl.platform,
+                                     _glfw.platform.getEGLNativeDisplay(),
+                                     attribs);
+    }
+    else
+        _glfw.egl.display = eglGetDisplay(_glfw.platform.getEGLNativeDisplay());
+
+    _glfw_free(attribs);
+
+    if (_glfw.egl.display == EGL_NO_DISPLAY)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "EGL: Failed to get EGL display: %s",
+                        getEGLErrorString(eglGetError()));
+
+        _glfwTerminateEGL();
+        return GLFW_FALSE;
+    }
+
+    if (!eglInitialize(_glfw.egl.display, &_glfw.egl.major, &_glfw.egl.minor))
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "EGL: Failed to initialize EGL: %s",
+                        getEGLErrorString(eglGetError()));
+
+        _glfwTerminateEGL();
+        return GLFW_FALSE;
+    }
+
+    _glfw.egl.KHR_create_context =
+        extensionSupportedEGL("EGL_KHR_create_context");
+    _glfw.egl.KHR_create_context_no_error =
+        extensionSupportedEGL("EGL_KHR_create_context_no_error");
+    _glfw.egl.KHR_gl_colorspace =
+        extensionSupportedEGL("EGL_KHR_gl_colorspace");
+    _glfw.egl.KHR_get_all_proc_addresses =
+        extensionSupportedEGL("EGL_KHR_get_all_proc_addresses");
+    _glfw.egl.KHR_context_flush_control =
+        extensionSupportedEGL("EGL_KHR_context_flush_control");
+    _glfw.egl.EXT_present_opaque =
+        extensionSupportedEGL("EGL_EXT_present_opaque");
+
+    return GLFW_TRUE;
+}
+
+// Terminate EGL
+//
+void _glfwTerminateEGL(void)
+{
+    if (_glfw.egl.display)
+    {
+        eglTerminate(_glfw.egl.display);
+        _glfw.egl.display = EGL_NO_DISPLAY;
+    }
+
+    if (_glfw.egl.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.egl.handle);
+        _glfw.egl.handle = NULL;
+    }
+}
+
+#define SET_ATTRIB(a, v) \
+{ \
+    assert(((size_t) index + 1) < sizeof(attribs) / sizeof(attribs[0])); \
+    attribs[index++] = a; \
+    attribs[index++] = v; \
+}
+
+// Create the OpenGL or OpenGL ES context
+//
+GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
+                               const _GLFWctxconfig* ctxconfig,
+                               const _GLFWfbconfig* fbconfig)
+{
+    EGLint attribs[40];
+    EGLConfig config;
+    EGLContext share = NULL;
+    EGLNativeWindowType native;
+    int index = 0;
+
+    if (!_glfw.egl.display)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "EGL: API not available");
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->share)
+        share = ctxconfig->share->context.egl.handle;
+
+    if (!chooseEGLConfig(ctxconfig, fbconfig, &config))
+        return GLFW_FALSE;
+
+    if (ctxconfig->client == GLFW_OPENGL_ES_API)
+    {
+        if (!eglBindAPI(EGL_OPENGL_ES_API))
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "EGL: Failed to bind OpenGL ES: %s",
+                            getEGLErrorString(eglGetError()));
+            return GLFW_FALSE;
+        }
+    }
+    else
+    {
+        if (!eglBindAPI(EGL_OPENGL_API))
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "EGL: Failed to bind OpenGL: %s",
+                            getEGLErrorString(eglGetError()));
+            return GLFW_FALSE;
+        }
+    }
+
+    if (_glfw.egl.KHR_create_context)
+    {
+        int mask = 0, flags = 0;
+
+        if (ctxconfig->client == GLFW_OPENGL_API)
+        {
+            if (ctxconfig->forward)
+                flags |= EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR;
+
+            if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
+                mask |= EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
+            else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
+                mask |= EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR;
+        }
+
+        if (ctxconfig->debug)
+            flags |= EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
+
+        if (ctxconfig->robustness)
+        {
+            if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
+            {
+                SET_ATTRIB(EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR,
+                           EGL_NO_RESET_NOTIFICATION_KHR);
+            }
+            else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
+            {
+                SET_ATTRIB(EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR,
+                           EGL_LOSE_CONTEXT_ON_RESET_KHR);
+            }
+
+            flags |= EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR;
+        }
+
+        if (ctxconfig->major != 1 || ctxconfig->minor != 0)
+        {
+            SET_ATTRIB(EGL_CONTEXT_MAJOR_VERSION_KHR, ctxconfig->major);
+            SET_ATTRIB(EGL_CONTEXT_MINOR_VERSION_KHR, ctxconfig->minor);
+        }
+
+        if (ctxconfig->noerror)
+        {
+            if (_glfw.egl.KHR_create_context_no_error)
+                SET_ATTRIB(EGL_CONTEXT_OPENGL_NO_ERROR_KHR, GLFW_TRUE);
+        }
+
+        if (mask)
+            SET_ATTRIB(EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, mask);
+
+        if (flags)
+            SET_ATTRIB(EGL_CONTEXT_FLAGS_KHR, flags);
+    }
+    else
+    {
+        if (ctxconfig->client == GLFW_OPENGL_ES_API)
+            SET_ATTRIB(EGL_CONTEXT_CLIENT_VERSION, ctxconfig->major);
+    }
+
+    if (_glfw.egl.KHR_context_flush_control)
+    {
+        if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE)
+        {
+            SET_ATTRIB(EGL_CONTEXT_RELEASE_BEHAVIOR_KHR,
+                       EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR);
+        }
+        else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
+        {
+            SET_ATTRIB(EGL_CONTEXT_RELEASE_BEHAVIOR_KHR,
+                       EGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_KHR);
+        }
+    }
+
+    SET_ATTRIB(EGL_NONE, EGL_NONE);
+
+    window->context.egl.handle = eglCreateContext(_glfw.egl.display,
+                                                  config, share, attribs);
+
+    if (window->context.egl.handle == EGL_NO_CONTEXT)
+    {
+        _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                        "EGL: Failed to create context: %s",
+                        getEGLErrorString(eglGetError()));
+        return GLFW_FALSE;
+    }
+
+    // Set up attributes for surface creation
+    index = 0;
+
+    if (fbconfig->sRGB)
+    {
+        if (_glfw.egl.KHR_gl_colorspace)
+            SET_ATTRIB(EGL_GL_COLORSPACE_KHR, EGL_GL_COLORSPACE_SRGB_KHR);
+    }
+
+    if (!fbconfig->doublebuffer)
+        SET_ATTRIB(EGL_RENDER_BUFFER, EGL_SINGLE_BUFFER);
+
+    if (_glfw.platform.platformID == GLFW_PLATFORM_WAYLAND)
+    {
+        if (_glfw.egl.EXT_present_opaque)
+            SET_ATTRIB(EGL_PRESENT_OPAQUE_EXT, !fbconfig->transparent);
+    }
+
+    if (_glfw.egl.platform == EGL_PLATFORM_SURFACELESS_MESA)
+    {
+        int width, height;
+        _glfw.platform.getFramebufferSize(window, &width, &height);
+
+        SET_ATTRIB(EGL_WIDTH, width);
+        SET_ATTRIB(EGL_HEIGHT, height);
+    }
+
+    SET_ATTRIB(EGL_NONE, EGL_NONE);
+
+    native = _glfw.platform.getEGLNativeWindow(window);
+    if (!_glfw.egl.platform || _glfw.egl.platform == EGL_PLATFORM_ANGLE_ANGLE)
+    {
+        // HACK: Also use non-platform function for ANGLE, as it does not
+        //       implement eglCreatePlatformWindowSurfaceEXT despite reporting
+        //       support for EGL_EXT_platform_base
+        window->context.egl.surface =
+            eglCreateWindowSurface(_glfw.egl.display, config, native, attribs);
+    }
+    else if (_glfw.egl.platform == EGL_PLATFORM_SURFACELESS_MESA)
+    {
+        // HACK: Use a pbuffer surface as the default framebuffer
+        window->context.egl.surface =
+            eglCreatePbufferSurface(_glfw.egl.display, config, attribs);
+    }
+    else
+    {
+        window->context.egl.surface =
+            eglCreatePlatformWindowSurfaceEXT(_glfw.egl.display, config, native, attribs);
+    }
+
+    if (window->context.egl.surface == EGL_NO_SURFACE)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGL: Failed to create window surface: %s",
+                        getEGLErrorString(eglGetError()));
+        return GLFW_FALSE;
+    }
+
+    window->context.egl.config = config;
+
+    // Load the appropriate client library
+    if (!_glfw.egl.KHR_get_all_proc_addresses)
+    {
+        int i;
+        const char** sonames;
+        const char* es1sonames[] =
+        {
+#if defined(_GLFW_GLESV1_LIBRARY)
+            _GLFW_GLESV1_LIBRARY,
+#elif defined(_GLFW_WIN32)
+            "GLESv1_CM.dll",
+            "libGLES_CM.dll",
+#elif defined(_GLFW_COCOA)
+            "libGLESv1_CM.dylib",
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+            "libGLESv1_CM.so",
+#else
+            "libGLESv1_CM.so.1",
+            "libGLES_CM.so.1",
+#endif
+            NULL
+        };
+        const char* es2sonames[] =
+        {
+#if defined(_GLFW_GLESV2_LIBRARY)
+            _GLFW_GLESV2_LIBRARY,
+#elif defined(_GLFW_WIN32)
+            "GLESv2.dll",
+            "libGLESv2.dll",
+#elif defined(_GLFW_COCOA)
+            "libGLESv2.dylib",
+#elif defined(__CYGWIN__)
+            "libGLESv2-2.so",
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+            "libGLESv2.so",
+#else
+            "libGLESv2.so.2",
+#endif
+            NULL
+        };
+        const char* glsonames[] =
+        {
+#if defined(_GLFW_OPENGL_LIBRARY)
+            _GLFW_OPENGL_LIBRARY,
+#elif defined(_GLFW_WIN32)
+#elif defined(_GLFW_COCOA)
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+            "libGL.so",
+#else
+            "libOpenGL.so.0",
+            "libGL.so.1",
+#endif
+            NULL
+        };
+
+        if (ctxconfig->client == GLFW_OPENGL_ES_API)
+        {
+            if (ctxconfig->major == 1)
+                sonames = es1sonames;
+            else
+                sonames = es2sonames;
+        }
+        else
+            sonames = glsonames;
+
+        for (i = 0;  sonames[i];  i++)
+        {
+            // HACK: Match presence of lib prefix to increase chance of finding
+            //       a matching pair in the jungle that is Win32 EGL/GLES
+            if (_glfw.egl.prefix != (strncmp(sonames[i], "lib", 3) == 0))
+                continue;
+
+            window->context.egl.client = _glfwPlatformLoadModule(sonames[i]);
+            if (window->context.egl.client)
+                break;
+        }
+
+        if (!window->context.egl.client)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "EGL: Failed to load client library");
+            return GLFW_FALSE;
+        }
+    }
+
+    window->context.makeCurrent = makeContextCurrentEGL;
+    window->context.swapBuffers = swapBuffersEGL;
+    window->context.swapInterval = swapIntervalEGL;
+    window->context.extensionSupported = extensionSupportedEGL;
+    window->context.getProcAddress = getProcAddressEGL;
+    window->context.destroy = destroyContextEGL;
+
+    return GLFW_TRUE;
+}
+
+#undef SET_ATTRIB
+
+// Returns the Visual and depth of the chosen EGLConfig
+//
+#if defined(_GLFW_X11)
+GLFWbool _glfwChooseVisualEGL(const _GLFWwndconfig* wndconfig,
+                              const _GLFWctxconfig* ctxconfig,
+                              const _GLFWfbconfig* fbconfig,
+                              Visual** visual, int* depth)
+{
+    XVisualInfo* result;
+    XVisualInfo desired;
+    EGLConfig native;
+    EGLint visualID = 0, count = 0;
+    const long vimask = VisualScreenMask | VisualIDMask;
+
+    if (!chooseEGLConfig(ctxconfig, fbconfig, &native))
+        return GLFW_FALSE;
+
+    eglGetConfigAttrib(_glfw.egl.display, native,
+                       EGL_NATIVE_VISUAL_ID, &visualID);
+
+    desired.screen = _glfw.x11.screen;
+    desired.visualid = visualID;
+
+    result = XGetVisualInfo(_glfw.x11.display, vimask, &desired, &count);
+    if (!result)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGL: Failed to retrieve Visual for EGLConfig");
+        return GLFW_FALSE;
+    }
+
+    *visual = result->visual;
+    *depth = result->depth;
+
+    XFree(result);
+    return GLFW_TRUE;
+}
+#endif // _GLFW_X11
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI EGLDisplay glfwGetEGLDisplay(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_DISPLAY);
+    return _glfw.egl.display;
+}
+
+GLFWAPI EGLContext glfwGetEGLContext(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_CONTEXT);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->context.source != GLFW_EGL_CONTEXT_API)
+    {
+        if (_glfw.platform.platformID != GLFW_PLATFORM_WAYLAND ||
+            window->context.source != GLFW_NATIVE_CONTEXT_API)
+        {
+            _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+            return EGL_NO_CONTEXT;
+        }
+    }
+
+    return window->context.egl.handle;
+}
+
+GLFWAPI EGLSurface glfwGetEGLSurface(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_SURFACE);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->context.source != GLFW_EGL_CONTEXT_API)
+    {
+        if (_glfw.platform.platformID != GLFW_PLATFORM_WAYLAND ||
+            window->context.source != GLFW_NATIVE_CONTEXT_API)
+        {
+            _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+            return EGL_NO_CONTEXT;
+        }
+    }
+
+    return window->context.egl.surface;
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/glfw.rc.in b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/glfw.rc.in
new file mode 100644
index 000000000000..ac3460a7ca1d
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/glfw.rc.in
@@ -0,0 +1,30 @@
+
+#include <winver.h>
+
+VS_VERSION_INFO VERSIONINFO
+FILEVERSION @GLFW_VERSION_MAJOR@,@GLFW_VERSION_MINOR@,@GLFW_VERSION_PATCH@,0
+PRODUCTVERSION @GLFW_VERSION_MAJOR@,@GLFW_VERSION_MINOR@,@GLFW_VERSION_PATCH@,0
+FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
+FILEFLAGS 0
+FILEOS VOS_NT_WINDOWS32
+FILETYPE VFT_DLL
+FILESUBTYPE 0
+{
+    BLOCK "StringFileInfo"
+    {
+        BLOCK "040904B0"
+        {
+            VALUE "CompanyName", "GLFW"
+            VALUE "FileDescription", "GLFW @GLFW_VERSION@ DLL"
+            VALUE "FileVersion", "@GLFW_VERSION@"
+            VALUE "OriginalFilename", "glfw3.dll"
+            VALUE "ProductName", "GLFW"
+            VALUE "ProductVersion", "@GLFW_VERSION@"
+        }
+    }
+    BLOCK "VarFileInfo"
+    {
+        VALUE "Translation", 0x409, 1200
+    }
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/glx_context.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/glx_context.c
new file mode 100644
index 000000000000..a2464a9d69ca
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/glx_context.c
@@ -0,0 +1,723 @@
+//========================================================================
+// GLFW 3.5 GLX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_X11)
+
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#ifndef GLXBadProfileARB
+ #define GLXBadProfileARB 13
+#endif
+
+
+// Returns the specified attribute of the specified GLXFBConfig
+//
+static int getGLXFBConfigAttrib(GLXFBConfig fbconfig, int attrib)
+{
+    int value;
+    glXGetFBConfigAttrib(_glfw.x11.display, fbconfig, attrib, &value);
+    return value;
+}
+
+// Return the GLXFBConfig most closely matching the specified hints
+//
+static GLFWbool chooseGLXFBConfig(const _GLFWfbconfig* desired,
+                                  GLXFBConfig* result)
+{
+    GLXFBConfig* nativeConfigs;
+    _GLFWfbconfig* usableConfigs;
+    const _GLFWfbconfig* closest;
+    int nativeCount, usableCount;
+    const char* vendor;
+    GLFWbool trustWindowBit = GLFW_TRUE;
+
+    // HACK: This is a (hopefully temporary) workaround for Chromium
+    //       (VirtualBox GL) not setting the window bit on any GLXFBConfigs
+    vendor = glXGetClientString(_glfw.x11.display, GLX_VENDOR);
+    if (vendor && strcmp(vendor, "Chromium") == 0)
+        trustWindowBit = GLFW_FALSE;
+
+    nativeConfigs =
+        glXGetFBConfigs(_glfw.x11.display, _glfw.x11.screen, &nativeCount);
+    if (!nativeConfigs || !nativeCount)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "GLX: No GLXFBConfigs returned");
+        return GLFW_FALSE;
+    }
+
+    usableConfigs = _glfw_calloc(nativeCount, sizeof(_GLFWfbconfig));
+    usableCount = 0;
+
+    for (int i = 0;  i < nativeCount;  i++)
+    {
+        const GLXFBConfig n = nativeConfigs[i];
+        _GLFWfbconfig* u = usableConfigs + usableCount;
+
+        // Only consider RGBA GLXFBConfigs
+        if (!(getGLXFBConfigAttrib(n, GLX_RENDER_TYPE) & GLX_RGBA_BIT))
+            continue;
+
+        // Only consider window GLXFBConfigs
+        if (!(getGLXFBConfigAttrib(n, GLX_DRAWABLE_TYPE) & GLX_WINDOW_BIT))
+        {
+            if (trustWindowBit)
+                continue;
+        }
+
+        if (getGLXFBConfigAttrib(n, GLX_DOUBLEBUFFER) != desired->doublebuffer)
+            continue;
+
+        if (desired->transparent)
+        {
+            XVisualInfo* vi = glXGetVisualFromFBConfig(_glfw.x11.display, n);
+            if (vi)
+            {
+                u->transparent = _glfwIsVisualTransparentX11(vi->visual);
+                XFree(vi);
+            }
+        }
+
+        u->redBits = getGLXFBConfigAttrib(n, GLX_RED_SIZE);
+        u->greenBits = getGLXFBConfigAttrib(n, GLX_GREEN_SIZE);
+        u->blueBits = getGLXFBConfigAttrib(n, GLX_BLUE_SIZE);
+
+        u->alphaBits = getGLXFBConfigAttrib(n, GLX_ALPHA_SIZE);
+        u->depthBits = getGLXFBConfigAttrib(n, GLX_DEPTH_SIZE);
+        u->stencilBits = getGLXFBConfigAttrib(n, GLX_STENCIL_SIZE);
+
+        u->accumRedBits = getGLXFBConfigAttrib(n, GLX_ACCUM_RED_SIZE);
+        u->accumGreenBits = getGLXFBConfigAttrib(n, GLX_ACCUM_GREEN_SIZE);
+        u->accumBlueBits = getGLXFBConfigAttrib(n, GLX_ACCUM_BLUE_SIZE);
+        u->accumAlphaBits = getGLXFBConfigAttrib(n, GLX_ACCUM_ALPHA_SIZE);
+
+        u->auxBuffers = getGLXFBConfigAttrib(n, GLX_AUX_BUFFERS);
+
+        if (getGLXFBConfigAttrib(n, GLX_STEREO))
+            u->stereo = GLFW_TRUE;
+
+        if (_glfw.glx.ARB_multisample)
+            u->samples = getGLXFBConfigAttrib(n, GLX_SAMPLES);
+
+        if (_glfw.glx.ARB_framebuffer_sRGB || _glfw.glx.EXT_framebuffer_sRGB)
+            u->sRGB = getGLXFBConfigAttrib(n, GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB);
+
+        u->handle = (uintptr_t) n;
+        usableCount++;
+    }
+
+    closest = _glfwChooseFBConfig(desired, usableConfigs, usableCount);
+    if (closest)
+        *result = (GLXFBConfig) closest->handle;
+
+    XFree(nativeConfigs);
+    _glfw_free(usableConfigs);
+
+    return closest != NULL;
+}
+
+// Create the OpenGL context using legacy API
+//
+static GLXContext createLegacyContextGLX(_GLFWwindow* window,
+                                         GLXFBConfig fbconfig,
+                                         GLXContext share)
+{
+    return glXCreateNewContext(_glfw.x11.display,
+                               fbconfig,
+                               GLX_RGBA_TYPE,
+                               share,
+                               True);
+}
+
+static void makeContextCurrentGLX(_GLFWwindow* window)
+{
+    if (window)
+    {
+        if (!glXMakeCurrent(_glfw.x11.display,
+                            window->context.glx.window,
+                            window->context.glx.handle))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "GLX: Failed to make context current");
+            return;
+        }
+    }
+    else
+    {
+        if (!glXMakeCurrent(_glfw.x11.display, None, NULL))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "GLX: Failed to clear current context");
+            return;
+        }
+    }
+
+    _glfwPlatformSetTls(&_glfw.contextSlot, window);
+}
+
+static void swapBuffersGLX(_GLFWwindow* window)
+{
+    glXSwapBuffers(_glfw.x11.display, window->context.glx.window);
+}
+
+static void swapIntervalGLX(int interval)
+{
+    _GLFWwindow* window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    assert(window != NULL);
+
+    if (_glfw.glx.EXT_swap_control)
+    {
+        _glfw.glx.SwapIntervalEXT(_glfw.x11.display,
+                                  window->context.glx.window,
+                                  interval);
+    }
+    else if (_glfw.glx.MESA_swap_control)
+        _glfw.glx.SwapIntervalMESA(interval);
+    else if (_glfw.glx.SGI_swap_control)
+    {
+        if (interval > 0)
+            _glfw.glx.SwapIntervalSGI(interval);
+    }
+}
+
+static int extensionSupportedGLX(const char* extension)
+{
+    const char* extensions =
+        glXQueryExtensionsString(_glfw.x11.display, _glfw.x11.screen);
+    if (extensions)
+    {
+        if (_glfwStringInExtensionString(extension, extensions))
+            return GLFW_TRUE;
+    }
+
+    return GLFW_FALSE;
+}
+
+static GLFWglproc getProcAddressGLX(const char* procname)
+{
+    if (_glfw.glx.GetProcAddress)
+        return _glfw.glx.GetProcAddress((const GLubyte*) procname);
+    else if (_glfw.glx.GetProcAddressARB)
+        return _glfw.glx.GetProcAddressARB((const GLubyte*) procname);
+    else
+    {
+        // NOTE: glvnd provides GLX 1.4, so this can only happen with libGL
+        return _glfwPlatformGetModuleSymbol(_glfw.glx.handle, procname);
+    }
+}
+
+static void destroyContextGLX(_GLFWwindow* window)
+{
+    if (window->context.glx.window)
+    {
+        glXDestroyWindow(_glfw.x11.display, window->context.glx.window);
+        window->context.glx.window = None;
+    }
+
+    if (window->context.glx.handle)
+    {
+        glXDestroyContext(_glfw.x11.display, window->context.glx.handle);
+        window->context.glx.handle = NULL;
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Initialize GLX
+//
+GLFWbool _glfwInitGLX(void)
+{
+    const char* sonames[] =
+    {
+#if defined(_GLFW_GLX_LIBRARY)
+        _GLFW_GLX_LIBRARY,
+#elif defined(__CYGWIN__)
+        "libGL-1.so",
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+        "libGL.so",
+#else
+        "libGLX.so.0",
+        "libGL.so.1",
+        "libGL.so",
+#endif
+        NULL
+    };
+
+    if (_glfw.glx.handle)
+        return GLFW_TRUE;
+
+    for (int i = 0;  sonames[i];  i++)
+    {
+        _glfw.glx.handle = _glfwPlatformLoadModule(sonames[i]);
+        if (_glfw.glx.handle)
+            break;
+    }
+
+    if (!_glfw.glx.handle)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "GLX: Failed to load GLX");
+        return GLFW_FALSE;
+    }
+
+    _glfw.glx.GetFBConfigs = (PFNGLXGETFBCONFIGSPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXGetFBConfigs");
+    _glfw.glx.GetFBConfigAttrib = (PFNGLXGETFBCONFIGATTRIBPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXGetFBConfigAttrib");
+    _glfw.glx.GetClientString = (PFNGLXGETCLIENTSTRINGPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXGetClientString");
+    _glfw.glx.QueryExtension = (PFNGLXQUERYEXTENSIONPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXQueryExtension");
+    _glfw.glx.QueryVersion = (PFNGLXQUERYVERSIONPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXQueryVersion");
+    _glfw.glx.DestroyContext = (PFNGLXDESTROYCONTEXTPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXDestroyContext");
+    _glfw.glx.MakeCurrent = (PFNGLXMAKECURRENTPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXMakeCurrent");
+    _glfw.glx.SwapBuffers = (PFNGLXSWAPBUFFERSPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXSwapBuffers");
+    _glfw.glx.QueryExtensionsString = (PFNGLXQUERYEXTENSIONSSTRINGPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXQueryExtensionsString");
+    _glfw.glx.CreateNewContext = (PFNGLXCREATENEWCONTEXTPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXCreateNewContext");
+    _glfw.glx.CreateWindow = (PFNGLXCREATEWINDOWPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXCreateWindow");
+    _glfw.glx.DestroyWindow = (PFNGLXDESTROYWINDOWPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXDestroyWindow");
+    _glfw.glx.GetVisualFromFBConfig = (PFNGLXGETVISUALFROMFBCONFIGPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXGetVisualFromFBConfig");
+
+    if (!_glfw.glx.GetFBConfigs ||
+        !_glfw.glx.GetFBConfigAttrib ||
+        !_glfw.glx.GetClientString ||
+        !_glfw.glx.QueryExtension ||
+        !_glfw.glx.QueryVersion ||
+        !_glfw.glx.DestroyContext ||
+        !_glfw.glx.MakeCurrent ||
+        !_glfw.glx.SwapBuffers ||
+        !_glfw.glx.QueryExtensionsString ||
+        !_glfw.glx.CreateNewContext ||
+        !_glfw.glx.CreateWindow ||
+        !_glfw.glx.DestroyWindow ||
+        !_glfw.glx.GetVisualFromFBConfig)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "GLX: Failed to load required entry points");
+        return GLFW_FALSE;
+    }
+
+    // NOTE: Unlike GLX 1.3 entry points these are not required to be present
+    _glfw.glx.GetProcAddress = (PFNGLXGETPROCADDRESSPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXGetProcAddress");
+    _glfw.glx.GetProcAddressARB = (PFNGLXGETPROCADDRESSPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXGetProcAddressARB");
+
+    if (!glXQueryExtension(_glfw.x11.display,
+                           &_glfw.glx.errorBase,
+                           &_glfw.glx.eventBase))
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "GLX: GLX extension not found");
+        return GLFW_FALSE;
+    }
+
+    if (!glXQueryVersion(_glfw.x11.display, &_glfw.glx.major, &_glfw.glx.minor))
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "GLX: Failed to query GLX version");
+        return GLFW_FALSE;
+    }
+
+    if (_glfw.glx.major == 1 && _glfw.glx.minor < 3)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "GLX: GLX version 1.3 is required");
+        return GLFW_FALSE;
+    }
+
+    if (extensionSupportedGLX("GLX_EXT_swap_control"))
+    {
+        _glfw.glx.SwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)
+            getProcAddressGLX("glXSwapIntervalEXT");
+
+        if (_glfw.glx.SwapIntervalEXT)
+            _glfw.glx.EXT_swap_control = GLFW_TRUE;
+    }
+
+    if (extensionSupportedGLX("GLX_SGI_swap_control"))
+    {
+        _glfw.glx.SwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)
+            getProcAddressGLX("glXSwapIntervalSGI");
+
+        if (_glfw.glx.SwapIntervalSGI)
+            _glfw.glx.SGI_swap_control = GLFW_TRUE;
+    }
+
+    if (extensionSupportedGLX("GLX_MESA_swap_control"))
+    {
+        _glfw.glx.SwapIntervalMESA = (PFNGLXSWAPINTERVALMESAPROC)
+            getProcAddressGLX("glXSwapIntervalMESA");
+
+        if (_glfw.glx.SwapIntervalMESA)
+            _glfw.glx.MESA_swap_control = GLFW_TRUE;
+    }
+
+    if (extensionSupportedGLX("GLX_ARB_multisample"))
+        _glfw.glx.ARB_multisample = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_ARB_framebuffer_sRGB"))
+        _glfw.glx.ARB_framebuffer_sRGB = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_EXT_framebuffer_sRGB"))
+        _glfw.glx.EXT_framebuffer_sRGB = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_ARB_create_context"))
+    {
+        _glfw.glx.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
+            getProcAddressGLX("glXCreateContextAttribsARB");
+
+        if (_glfw.glx.CreateContextAttribsARB)
+            _glfw.glx.ARB_create_context = GLFW_TRUE;
+    }
+
+    if (extensionSupportedGLX("GLX_ARB_create_context_robustness"))
+        _glfw.glx.ARB_create_context_robustness = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_ARB_create_context_profile"))
+        _glfw.glx.ARB_create_context_profile = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_EXT_create_context_es2_profile"))
+        _glfw.glx.EXT_create_context_es2_profile = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_ARB_create_context_no_error"))
+        _glfw.glx.ARB_create_context_no_error = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_ARB_context_flush_control"))
+        _glfw.glx.ARB_context_flush_control = GLFW_TRUE;
+
+    return GLFW_TRUE;
+}
+
+// Terminate GLX
+//
+void _glfwTerminateGLX(void)
+{
+    // NOTE: This function must not call any X11 functions, as it is called
+    //       after XCloseDisplay (see _glfwTerminateX11 for details)
+
+    if (_glfw.glx.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.glx.handle);
+        _glfw.glx.handle = NULL;
+    }
+}
+
+#define SET_ATTRIB(a, v) \
+{ \
+    assert(((size_t) index + 1) < sizeof(attribs) / sizeof(attribs[0])); \
+    attribs[index++] = a; \
+    attribs[index++] = v; \
+}
+
+// Create the OpenGL or OpenGL ES context
+//
+GLFWbool _glfwCreateContextGLX(_GLFWwindow* window,
+                               const _GLFWctxconfig* ctxconfig,
+                               const _GLFWfbconfig* fbconfig)
+{
+    int attribs[40];
+    GLXFBConfig native = NULL;
+    GLXContext share = NULL;
+
+    if (ctxconfig->share)
+        share = ctxconfig->share->context.glx.handle;
+
+    if (!chooseGLXFBConfig(fbconfig, &native))
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "GLX: Failed to find a suitable GLXFBConfig");
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->client == GLFW_OPENGL_ES_API)
+    {
+        if (!_glfw.glx.ARB_create_context ||
+            !_glfw.glx.ARB_create_context_profile ||
+            !_glfw.glx.EXT_create_context_es2_profile)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "GLX: OpenGL ES requested but GLX_EXT_create_context_es2_profile is unavailable");
+            return GLFW_FALSE;
+        }
+    }
+
+    if (ctxconfig->forward)
+    {
+        if (!_glfw.glx.ARB_create_context)
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "GLX: Forward compatibility requested but GLX_ARB_create_context_profile is unavailable");
+            return GLFW_FALSE;
+        }
+    }
+
+    if (ctxconfig->profile)
+    {
+        if (!_glfw.glx.ARB_create_context ||
+            !_glfw.glx.ARB_create_context_profile)
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "GLX: An OpenGL profile requested but GLX_ARB_create_context_profile is unavailable");
+            return GLFW_FALSE;
+        }
+    }
+
+    _glfwGrabErrorHandlerX11();
+
+    if (_glfw.glx.ARB_create_context)
+    {
+        int index = 0, mask = 0, flags = 0;
+
+        if (ctxconfig->client == GLFW_OPENGL_API)
+        {
+            if (ctxconfig->forward)
+                flags |= GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
+
+            if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
+                mask |= GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
+            else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
+                mask |= GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
+        }
+        else
+            mask |= GLX_CONTEXT_ES2_PROFILE_BIT_EXT;
+
+        if (ctxconfig->debug)
+            flags |= GLX_CONTEXT_DEBUG_BIT_ARB;
+
+        if (ctxconfig->robustness)
+        {
+            if (_glfw.glx.ARB_create_context_robustness)
+            {
+                if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
+                {
+                    SET_ATTRIB(GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
+                               GLX_NO_RESET_NOTIFICATION_ARB);
+                }
+                else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
+                {
+                    SET_ATTRIB(GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
+                               GLX_LOSE_CONTEXT_ON_RESET_ARB);
+                }
+
+                flags |= GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB;
+            }
+        }
+
+        if (ctxconfig->release)
+        {
+            if (_glfw.glx.ARB_context_flush_control)
+            {
+                if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE)
+                {
+                    SET_ATTRIB(GLX_CONTEXT_RELEASE_BEHAVIOR_ARB,
+                               GLX_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB);
+                }
+                else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
+                {
+                    SET_ATTRIB(GLX_CONTEXT_RELEASE_BEHAVIOR_ARB,
+                               GLX_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB);
+                }
+            }
+        }
+
+        if (ctxconfig->noerror)
+        {
+            if (_glfw.glx.ARB_create_context_no_error)
+                SET_ATTRIB(GLX_CONTEXT_OPENGL_NO_ERROR_ARB, GLFW_TRUE);
+        }
+
+        // NOTE: Only request an explicitly versioned context when necessary, as
+        //       explicitly requesting version 1.0 does not always return the
+        //       highest version supported by the driver
+        if (ctxconfig->major != 1 || ctxconfig->minor != 0)
+        {
+            SET_ATTRIB(GLX_CONTEXT_MAJOR_VERSION_ARB, ctxconfig->major);
+            SET_ATTRIB(GLX_CONTEXT_MINOR_VERSION_ARB, ctxconfig->minor);
+        }
+
+        if (mask)
+            SET_ATTRIB(GLX_CONTEXT_PROFILE_MASK_ARB, mask);
+
+        if (flags)
+            SET_ATTRIB(GLX_CONTEXT_FLAGS_ARB, flags);
+
+        SET_ATTRIB(None, None);
+
+        window->context.glx.handle =
+            _glfw.glx.CreateContextAttribsARB(_glfw.x11.display,
+                                              native,
+                                              share,
+                                              True,
+                                              attribs);
+
+        // HACK: This is a fallback for broken versions of the Mesa
+        //       implementation of GLX_ARB_create_context_profile that fail
+        //       default 1.0 context creation with a GLXBadProfileARB error in
+        //       violation of the extension spec
+        if (!window->context.glx.handle)
+        {
+            if (_glfw.x11.errorCode == _glfw.glx.errorBase + GLXBadProfileARB &&
+                ctxconfig->client == GLFW_OPENGL_API &&
+                ctxconfig->profile == GLFW_OPENGL_ANY_PROFILE &&
+                ctxconfig->forward == GLFW_FALSE)
+            {
+                window->context.glx.handle =
+                    createLegacyContextGLX(window, native, share);
+            }
+        }
+    }
+    else
+    {
+        window->context.glx.handle =
+            createLegacyContextGLX(window, native, share);
+    }
+
+    _glfwReleaseErrorHandlerX11();
+
+    if (!window->context.glx.handle)
+    {
+        _glfwInputErrorX11(GLFW_VERSION_UNAVAILABLE, "GLX: Failed to create context");
+        return GLFW_FALSE;
+    }
+
+    window->context.glx.window =
+        glXCreateWindow(_glfw.x11.display, native, window->x11.handle, NULL);
+    if (!window->context.glx.window)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "GLX: Failed to create window");
+        return GLFW_FALSE;
+    }
+
+    window->context.makeCurrent = makeContextCurrentGLX;
+    window->context.swapBuffers = swapBuffersGLX;
+    window->context.swapInterval = swapIntervalGLX;
+    window->context.extensionSupported = extensionSupportedGLX;
+    window->context.getProcAddress = getProcAddressGLX;
+    window->context.destroy = destroyContextGLX;
+
+    return GLFW_TRUE;
+}
+
+#undef SET_ATTRIB
+
+// Returns the Visual and depth of the chosen GLXFBConfig
+//
+GLFWbool _glfwChooseVisualGLX(const _GLFWwndconfig* wndconfig,
+                              const _GLFWctxconfig* ctxconfig,
+                              const _GLFWfbconfig* fbconfig,
+                              Visual** visual, int* depth)
+{
+    GLXFBConfig native;
+    XVisualInfo* result;
+
+    if (!chooseGLXFBConfig(fbconfig, &native))
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "GLX: Failed to find a suitable GLXFBConfig");
+        return GLFW_FALSE;
+    }
+
+    result = glXGetVisualFromFBConfig(_glfw.x11.display, native);
+    if (!result)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "GLX: Failed to retrieve Visual for GLXFBConfig");
+        return GLFW_FALSE;
+    }
+
+    *visual = result->visual;
+    *depth  = result->depth;
+
+    XFree(result);
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "GLX: Platform not initialized");
+        return NULL;
+    }
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->context.source != GLFW_NATIVE_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return NULL;
+    }
+
+    return window->context.glx.handle;
+}
+
+GLFWAPI GLXWindow glfwGetGLXWindow(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(None);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "GLX: Platform not initialized");
+        return None;
+    }
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->context.source != GLFW_NATIVE_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return None;
+    }
+
+    return window->context.glx.window;
+}
+
+#endif // _GLFW_X11
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/init.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/init.c
new file mode 100644
index 000000000000..dbd5a900c65f
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/init.c
@@ -0,0 +1,528 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <assert.h>
+
+
+// NOTE: The global variables below comprise all mutable global data in GLFW
+//       Any other mutable global variable is a bug
+
+// This contains all mutable state shared between compilation units of GLFW
+//
+_GLFWlibrary _glfw = { GLFW_FALSE };
+
+// These are outside of _glfw so they can be used before initialization and
+// after termination without special handling when _glfw is cleared to zero
+//
+static _GLFWerror _glfwMainThreadError;
+static GLFWerrorfun _glfwErrorCallback;
+static GLFWallocator _glfwInitAllocator;
+static _GLFWinitconfig _glfwInitHints =
+{
+    .hatButtons = GLFW_TRUE,
+    .angleType = GLFW_ANGLE_PLATFORM_TYPE_NONE,
+    .platformID = GLFW_ANY_PLATFORM,
+    .vulkanLoader = NULL,
+    .ns =
+    {
+        .menubar = GLFW_TRUE,
+        .chdir = GLFW_TRUE
+    },
+    .x11 =
+    {
+        .xcbVulkanSurface = GLFW_TRUE,
+    },
+    .wl =
+    {
+        .libdecorMode = GLFW_WAYLAND_PREFER_LIBDECOR
+    },
+};
+
+// The allocation function used when no custom allocator is set
+//
+static void* defaultAllocate(size_t size, void* user)
+{
+    return malloc(size);
+}
+
+// The deallocation function used when no custom allocator is set
+//
+static void defaultDeallocate(void* block, void* user)
+{
+    free(block);
+}
+
+// The reallocation function used when no custom allocator is set
+//
+static void* defaultReallocate(void* block, size_t size, void* user)
+{
+    return realloc(block, size);
+}
+
+// Terminate the library
+//
+static void terminate(void)
+{
+    int i;
+
+    memset(&_glfw.callbacks, 0, sizeof(_glfw.callbacks));
+
+    while (_glfw.windowListHead)
+        glfwDestroyWindow((GLFWwindow*) _glfw.windowListHead);
+
+    while (_glfw.cursorListHead)
+        glfwDestroyCursor((GLFWcursor*) _glfw.cursorListHead);
+
+    for (i = 0;  i < _glfw.monitorCount;  i++)
+    {
+        _GLFWmonitor* monitor = _glfw.monitors[i];
+        if (monitor->originalRamp.size)
+            _glfw.platform.setGammaRamp(monitor, &monitor->originalRamp);
+        _glfwFreeMonitor(monitor);
+    }
+
+    _glfw_free(_glfw.monitors);
+    _glfw.monitors = NULL;
+    _glfw.monitorCount = 0;
+
+    _glfw_free(_glfw.mappings);
+    _glfw.mappings = NULL;
+    _glfw.mappingCount = 0;
+
+    _glfwTerminateVulkan();
+    _glfw.platform.terminateJoysticks();
+    _glfw.platform.terminate();
+
+    _glfw.initialized = GLFW_FALSE;
+
+    while (_glfw.errorListHead)
+    {
+        _GLFWerror* error = _glfw.errorListHead;
+        _glfw.errorListHead = error->next;
+        _glfw_free(error);
+    }
+
+    _glfwPlatformDestroyTls(&_glfw.contextSlot);
+    _glfwPlatformDestroyTls(&_glfw.errorSlot);
+    _glfwPlatformDestroyMutex(&_glfw.errorLock);
+
+    memset(&_glfw, 0, sizeof(_glfw));
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Encode a Unicode code point to a UTF-8 stream
+// Based on cutef8 by Jeff Bezanson (Public Domain)
+//
+size_t _glfwEncodeUTF8(char* s, uint32_t codepoint)
+{
+    size_t count = 0;
+
+    if (codepoint < 0x80)
+        s[count++] = (char) codepoint;
+    else if (codepoint < 0x800)
+    {
+        s[count++] = (codepoint >> 6) | 0xc0;
+        s[count++] = (codepoint & 0x3f) | 0x80;
+    }
+    else if (codepoint < 0x10000)
+    {
+        s[count++] = (codepoint >> 12) | 0xe0;
+        s[count++] = ((codepoint >> 6) & 0x3f) | 0x80;
+        s[count++] = (codepoint & 0x3f) | 0x80;
+    }
+    else if (codepoint < 0x110000)
+    {
+        s[count++] = (codepoint >> 18) | 0xf0;
+        s[count++] = ((codepoint >> 12) & 0x3f) | 0x80;
+        s[count++] = ((codepoint >> 6) & 0x3f) | 0x80;
+        s[count++] = (codepoint & 0x3f) | 0x80;
+    }
+
+    return count;
+}
+
+// Splits and translates a text/uri-list into separate file paths
+// NOTE: This function destroys the provided string
+//
+char** _glfwParseUriList(char* text, int* count)
+{
+    const char* prefix = "file://";
+    char** paths = NULL;
+    char* line;
+
+    *count = 0;
+
+    while ((line = strtok(text, "\r\n")))
+    {
+        char* path;
+
+        text = NULL;
+
+        if (line[0] == '#')
+            continue;
+
+        if (strncmp(line, prefix, strlen(prefix)) == 0)
+        {
+            line += strlen(prefix);
+            // TODO: Validate hostname
+            while (*line != '/')
+                line++;
+        }
+
+        (*count)++;
+
+        path = _glfw_calloc(strlen(line) + 1, 1);
+        paths = _glfw_realloc(paths, *count * sizeof(char*));
+        paths[*count - 1] = path;
+
+        while (*line)
+        {
+            if (line[0] == '%' && line[1] && line[2])
+            {
+                const char digits[3] = { line[1], line[2], '\0' };
+                *path = (char) strtol(digits, NULL, 16);
+                line += 2;
+            }
+            else
+                *path = *line;
+
+            path++;
+            line++;
+        }
+    }
+
+    return paths;
+}
+
+char* _glfw_strdup(const char* source)
+{
+    const size_t length = strlen(source);
+    char* result = _glfw_calloc(length + 1, 1);
+    strcpy(result, source);
+    return result;
+}
+
+int _glfw_min(int a, int b)
+{
+    return a < b ? a : b;
+}
+
+int _glfw_max(int a, int b)
+{
+    return a > b ? a : b;
+}
+
+void* _glfw_calloc(size_t count, size_t size)
+{
+    if (count && size)
+    {
+        void* block;
+
+        if (count > SIZE_MAX / size)
+        {
+            _glfwInputError(GLFW_INVALID_VALUE, "Allocation size overflow");
+            return NULL;
+        }
+
+        block = _glfw.allocator.allocate(count * size, _glfw.allocator.user);
+        if (block)
+            return memset(block, 0, count * size);
+        else
+        {
+            _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
+            return NULL;
+        }
+    }
+    else
+        return NULL;
+}
+
+void* _glfw_realloc(void* block, size_t size)
+{
+    if (block && size)
+    {
+        void* resized = _glfw.allocator.reallocate(block, size, _glfw.allocator.user);
+        if (resized)
+            return resized;
+        else
+        {
+            _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
+            return NULL;
+        }
+    }
+    else if (block)
+    {
+        _glfw_free(block);
+        return NULL;
+    }
+    else
+        return _glfw_calloc(1, size);
+}
+
+void _glfw_free(void* block)
+{
+    if (block)
+        _glfw.allocator.deallocate(block, _glfw.allocator.user);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                         GLFW event API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+// Notifies shared code of an error
+//
+void _glfwInputError(int code, const char* format, ...)
+{
+    _GLFWerror* error;
+    char description[_GLFW_MESSAGE_SIZE];
+
+    if (format)
+    {
+        va_list vl;
+
+        va_start(vl, format);
+        vsnprintf(description, sizeof(description), format, vl);
+        va_end(vl);
+
+        description[sizeof(description) - 1] = '\0';
+    }
+    else
+    {
+        if (code == GLFW_NOT_INITIALIZED)
+            strcpy(description, "The GLFW library is not initialized");
+        else if (code == GLFW_NO_CURRENT_CONTEXT)
+            strcpy(description, "There is no current context");
+        else if (code == GLFW_INVALID_ENUM)
+            strcpy(description, "Invalid argument for enum parameter");
+        else if (code == GLFW_INVALID_VALUE)
+            strcpy(description, "Invalid value for parameter");
+        else if (code == GLFW_OUT_OF_MEMORY)
+            strcpy(description, "Out of memory");
+        else if (code == GLFW_API_UNAVAILABLE)
+            strcpy(description, "The requested API is unavailable");
+        else if (code == GLFW_VERSION_UNAVAILABLE)
+            strcpy(description, "The requested API version is unavailable");
+        else if (code == GLFW_PLATFORM_ERROR)
+            strcpy(description, "A platform-specific error occurred");
+        else if (code == GLFW_FORMAT_UNAVAILABLE)
+            strcpy(description, "The requested format is unavailable");
+        else if (code == GLFW_NO_WINDOW_CONTEXT)
+            strcpy(description, "The specified window has no context");
+        else if (code == GLFW_CURSOR_UNAVAILABLE)
+            strcpy(description, "The specified cursor shape is unavailable");
+        else if (code == GLFW_FEATURE_UNAVAILABLE)
+            strcpy(description, "The requested feature cannot be implemented for this platform");
+        else if (code == GLFW_FEATURE_UNIMPLEMENTED)
+            strcpy(description, "The requested feature has not yet been implemented for this platform");
+        else if (code == GLFW_PLATFORM_UNAVAILABLE)
+            strcpy(description, "The requested platform is unavailable");
+        else
+            strcpy(description, "ERROR: UNKNOWN GLFW ERROR");
+    }
+
+    if (_glfw.initialized)
+    {
+        error = _glfwPlatformGetTls(&_glfw.errorSlot);
+        if (!error)
+        {
+            error = _glfw_calloc(1, sizeof(_GLFWerror));
+            _glfwPlatformSetTls(&_glfw.errorSlot, error);
+            _glfwPlatformLockMutex(&_glfw.errorLock);
+            error->next = _glfw.errorListHead;
+            _glfw.errorListHead = error;
+            _glfwPlatformUnlockMutex(&_glfw.errorLock);
+        }
+    }
+    else
+        error = &_glfwMainThreadError;
+
+    error->code = code;
+    strcpy(error->description, description);
+
+    if (_glfwErrorCallback)
+        _glfwErrorCallback(code, description);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW public API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI int glfwInit(void)
+{
+    if (_glfw.initialized)
+        return GLFW_TRUE;
+
+    memset(&_glfw, 0, sizeof(_glfw));
+    _glfw.hints.init = _glfwInitHints;
+
+    _glfw.allocator = _glfwInitAllocator;
+    if (!_glfw.allocator.allocate)
+    {
+        _glfw.allocator.allocate   = defaultAllocate;
+        _glfw.allocator.reallocate = defaultReallocate;
+        _glfw.allocator.deallocate = defaultDeallocate;
+    }
+
+    if (!_glfwSelectPlatform(_glfw.hints.init.platformID, &_glfw.platform))
+        return GLFW_FALSE;
+
+    if (!_glfw.platform.init())
+    {
+        terminate();
+        return GLFW_FALSE;
+    }
+
+    if (!_glfwPlatformCreateMutex(&_glfw.errorLock) ||
+        !_glfwPlatformCreateTls(&_glfw.errorSlot) ||
+        !_glfwPlatformCreateTls(&_glfw.contextSlot))
+    {
+        terminate();
+        return GLFW_FALSE;
+    }
+
+    _glfwPlatformSetTls(&_glfw.errorSlot, &_glfwMainThreadError);
+
+    _glfwInitGamepadMappings();
+
+    _glfwPlatformInitTimer();
+    _glfw.timer.offset = _glfwPlatformGetTimerValue();
+
+    _glfw.initialized = GLFW_TRUE;
+
+    glfwDefaultWindowHints();
+    return GLFW_TRUE;
+}
+
+GLFWAPI void glfwTerminate(void)
+{
+    if (!_glfw.initialized)
+        return;
+
+    terminate();
+}
+
+GLFWAPI void glfwInitHint(int hint, int value)
+{
+    switch (hint)
+    {
+        case GLFW_JOYSTICK_HAT_BUTTONS:
+            _glfwInitHints.hatButtons = value;
+            return;
+        case GLFW_ANGLE_PLATFORM_TYPE:
+            _glfwInitHints.angleType = value;
+            return;
+        case GLFW_PLATFORM:
+            _glfwInitHints.platformID = value;
+            return;
+        case GLFW_COCOA_CHDIR_RESOURCES:
+            _glfwInitHints.ns.chdir = value;
+            return;
+        case GLFW_COCOA_MENUBAR:
+            _glfwInitHints.ns.menubar = value;
+            return;
+        case GLFW_X11_XCB_VULKAN_SURFACE:
+            _glfwInitHints.x11.xcbVulkanSurface = value;
+            return;
+        case GLFW_WAYLAND_LIBDECOR:
+            _glfwInitHints.wl.libdecorMode = value;
+            return;
+    }
+
+    _glfwInputError(GLFW_INVALID_ENUM,
+                    "Invalid init hint 0x%08X", hint);
+}
+
+GLFWAPI void glfwInitAllocator(const GLFWallocator* allocator)
+{
+    if (allocator)
+    {
+        if (allocator->allocate && allocator->reallocate && allocator->deallocate)
+            _glfwInitAllocator = *allocator;
+        else
+            _glfwInputError(GLFW_INVALID_VALUE, "Missing function in allocator");
+    }
+    else
+        memset(&_glfwInitAllocator, 0, sizeof(GLFWallocator));
+}
+
+GLFWAPI void glfwInitVulkanLoader(PFN_vkGetInstanceProcAddr loader)
+{
+    _glfwInitHints.vulkanLoader = loader;
+}
+
+GLFWAPI void glfwGetVersion(int* major, int* minor, int* rev)
+{
+    if (major != NULL)
+        *major = GLFW_VERSION_MAJOR;
+    if (minor != NULL)
+        *minor = GLFW_VERSION_MINOR;
+    if (rev != NULL)
+        *rev = GLFW_VERSION_REVISION;
+}
+
+GLFWAPI int glfwGetError(const char** description)
+{
+    _GLFWerror* error;
+    int code = GLFW_NO_ERROR;
+
+    if (description)
+        *description = NULL;
+
+    if (_glfw.initialized)
+        error = _glfwPlatformGetTls(&_glfw.errorSlot);
+    else
+        error = &_glfwMainThreadError;
+
+    if (error)
+    {
+        code = error->code;
+        error->code = GLFW_NO_ERROR;
+        if (description && code)
+            *description = error->description;
+    }
+
+    return code;
+}
+
+GLFWAPI GLFWerrorfun glfwSetErrorCallback(GLFWerrorfun cbfun)
+{
+    _GLFW_SWAP(GLFWerrorfun, _glfwErrorCallback, cbfun);
+    return cbfun;
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/input.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/input.c
new file mode 100644
index 000000000000..c619eefce58c
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/input.c
@@ -0,0 +1,1523 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+#include "mappings.h"
+
+#include <assert.h>
+#include <float.h>
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+
+// Internal key state used for sticky keys
+#define _GLFW_STICK 3
+
+// Internal constants for gamepad mapping source types
+#define _GLFW_JOYSTICK_AXIS     1
+#define _GLFW_JOYSTICK_BUTTON   2
+#define _GLFW_JOYSTICK_HATBIT   3
+
+#define GLFW_MOD_MASK (GLFW_MOD_SHIFT | \
+                       GLFW_MOD_CONTROL | \
+                       GLFW_MOD_ALT | \
+                       GLFW_MOD_SUPER | \
+                       GLFW_MOD_CAPS_LOCK | \
+                       GLFW_MOD_NUM_LOCK)
+
+// Initializes the platform joystick API if it has not been already
+//
+static GLFWbool initJoysticks(void)
+{
+    if (!_glfw.joysticksInitialized)
+    {
+        if (!_glfw.platform.initJoysticks())
+        {
+            _glfw.platform.terminateJoysticks();
+            return GLFW_FALSE;
+        }
+    }
+
+    return _glfw.joysticksInitialized = GLFW_TRUE;
+}
+
+// Finds a mapping based on joystick GUID
+//
+static _GLFWmapping* findMapping(const char* guid)
+{
+    int i;
+
+    for (i = 0;  i < _glfw.mappingCount;  i++)
+    {
+        if (strcmp(_glfw.mappings[i].guid, guid) == 0)
+            return _glfw.mappings + i;
+    }
+
+    return NULL;
+}
+
+// Checks whether a gamepad mapping element is present in the hardware
+//
+static GLFWbool isValidElementForJoystick(const _GLFWmapelement* e,
+                                          const _GLFWjoystick* js)
+{
+    if (e->type == _GLFW_JOYSTICK_HATBIT && (e->index >> 4) >= js->hatCount)
+        return GLFW_FALSE;
+    else if (e->type == _GLFW_JOYSTICK_BUTTON && e->index >= js->buttonCount)
+        return GLFW_FALSE;
+    else if (e->type == _GLFW_JOYSTICK_AXIS && e->index >= js->axisCount)
+        return GLFW_FALSE;
+
+    return GLFW_TRUE;
+}
+
+// Finds a mapping based on joystick GUID and verifies element indices
+//
+static _GLFWmapping* findValidMapping(const _GLFWjoystick* js)
+{
+    _GLFWmapping* mapping = findMapping(js->guid);
+    if (mapping)
+    {
+        int i;
+
+        for (i = 0;  i <= GLFW_GAMEPAD_BUTTON_LAST;  i++)
+        {
+            if (!isValidElementForJoystick(mapping->buttons + i, js))
+                return NULL;
+        }
+
+        for (i = 0;  i <= GLFW_GAMEPAD_AXIS_LAST;  i++)
+        {
+            if (!isValidElementForJoystick(mapping->axes + i, js))
+                return NULL;
+        }
+    }
+
+    return mapping;
+}
+
+// Parses an SDL_GameControllerDB line and adds it to the mapping list
+//
+static GLFWbool parseMapping(_GLFWmapping* mapping, const char* string)
+{
+    const char* c = string;
+    size_t i, length;
+    struct
+    {
+        const char* name;
+        _GLFWmapelement* element;
+    } fields[] =
+    {
+        { "platform",      NULL },
+        { "a",             mapping->buttons + GLFW_GAMEPAD_BUTTON_A },
+        { "b",             mapping->buttons + GLFW_GAMEPAD_BUTTON_B },
+        { "x",             mapping->buttons + GLFW_GAMEPAD_BUTTON_X },
+        { "y",             mapping->buttons + GLFW_GAMEPAD_BUTTON_Y },
+        { "back",          mapping->buttons + GLFW_GAMEPAD_BUTTON_BACK },
+        { "start",         mapping->buttons + GLFW_GAMEPAD_BUTTON_START },
+        { "guide",         mapping->buttons + GLFW_GAMEPAD_BUTTON_GUIDE },
+        { "leftshoulder",  mapping->buttons + GLFW_GAMEPAD_BUTTON_LEFT_BUMPER },
+        { "rightshoulder", mapping->buttons + GLFW_GAMEPAD_BUTTON_RIGHT_BUMPER },
+        { "leftstick",     mapping->buttons + GLFW_GAMEPAD_BUTTON_LEFT_THUMB },
+        { "rightstick",    mapping->buttons + GLFW_GAMEPAD_BUTTON_RIGHT_THUMB },
+        { "dpup",          mapping->buttons + GLFW_GAMEPAD_BUTTON_DPAD_UP },
+        { "dpright",       mapping->buttons + GLFW_GAMEPAD_BUTTON_DPAD_RIGHT },
+        { "dpdown",        mapping->buttons + GLFW_GAMEPAD_BUTTON_DPAD_DOWN },
+        { "dpleft",        mapping->buttons + GLFW_GAMEPAD_BUTTON_DPAD_LEFT },
+        { "lefttrigger",   mapping->axes + GLFW_GAMEPAD_AXIS_LEFT_TRIGGER },
+        { "righttrigger",  mapping->axes + GLFW_GAMEPAD_AXIS_RIGHT_TRIGGER },
+        { "leftx",         mapping->axes + GLFW_GAMEPAD_AXIS_LEFT_X },
+        { "lefty",         mapping->axes + GLFW_GAMEPAD_AXIS_LEFT_Y },
+        { "rightx",        mapping->axes + GLFW_GAMEPAD_AXIS_RIGHT_X },
+        { "righty",        mapping->axes + GLFW_GAMEPAD_AXIS_RIGHT_Y }
+    };
+
+    length = strcspn(c, ",");
+    if (length != 32 || c[length] != ',')
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, NULL);
+        return GLFW_FALSE;
+    }
+
+    memcpy(mapping->guid, c, length);
+    c += length + 1;
+
+    length = strcspn(c, ",");
+    if (length >= sizeof(mapping->name) || c[length] != ',')
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, NULL);
+        return GLFW_FALSE;
+    }
+
+    memcpy(mapping->name, c, length);
+    c += length + 1;
+
+    while (*c)
+    {
+        // TODO: Implement output modifiers
+        if (*c == '+' || *c == '-')
+            return GLFW_FALSE;
+
+        for (i = 0;  i < sizeof(fields) / sizeof(fields[0]);  i++)
+        {
+            length = strlen(fields[i].name);
+            if (strncmp(c, fields[i].name, length) != 0 || c[length] != ':')
+                continue;
+
+            c += length + 1;
+
+            if (fields[i].element)
+            {
+                _GLFWmapelement* e = fields[i].element;
+                int8_t minimum = -1;
+                int8_t maximum = 1;
+
+                if (*c == '+')
+                {
+                    minimum = 0;
+                    c += 1;
+                }
+                else if (*c == '-')
+                {
+                    maximum = 0;
+                    c += 1;
+                }
+
+                if (*c == 'a')
+                    e->type = _GLFW_JOYSTICK_AXIS;
+                else if (*c == 'b')
+                    e->type = _GLFW_JOYSTICK_BUTTON;
+                else if (*c == 'h')
+                    e->type = _GLFW_JOYSTICK_HATBIT;
+                else
+                    break;
+
+                if (e->type == _GLFW_JOYSTICK_HATBIT)
+                {
+                    const unsigned long hat = strtoul(c + 1, (char**) &c, 10);
+                    const unsigned long bit = strtoul(c + 1, (char**) &c, 10);
+                    e->index = (uint8_t) ((hat << 4) | bit);
+                }
+                else
+                    e->index = (uint8_t) strtoul(c + 1, (char**) &c, 10);
+
+                if (e->type == _GLFW_JOYSTICK_AXIS)
+                {
+                    e->axisScale = 2 / (maximum - minimum);
+                    e->axisOffset = -(maximum + minimum);
+
+                    if (*c == '~')
+                    {
+                        e->axisScale = -e->axisScale;
+                        e->axisOffset = -e->axisOffset;
+                    }
+                }
+            }
+            else
+            {
+                const char* name = _glfw.platform.getMappingName();
+                length = strlen(name);
+                if (strncmp(c, name, length) != 0)
+                    return GLFW_FALSE;
+            }
+
+            break;
+        }
+
+        c += strcspn(c, ",");
+        c += strspn(c, ",");
+    }
+
+    for (i = 0;  i < 32;  i++)
+    {
+        if (mapping->guid[i] >= 'A' && mapping->guid[i] <= 'F')
+            mapping->guid[i] += 'a' - 'A';
+    }
+
+    _glfw.platform.updateGamepadGUID(mapping->guid);
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                         GLFW event API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+// Notifies shared code of a physical key event
+//
+void _glfwInputKey(_GLFWwindow* window, int key, int scancode, int action, int mods)
+{
+    assert(window != NULL);
+    assert(key >= 0 || key == GLFW_KEY_UNKNOWN);
+    assert(key <= GLFW_KEY_LAST);
+    assert(action == GLFW_PRESS || action == GLFW_RELEASE);
+    assert(mods == (mods & GLFW_MOD_MASK));
+
+    if (key >= 0 && key <= GLFW_KEY_LAST)
+    {
+        GLFWbool repeated = GLFW_FALSE;
+
+        if (action == GLFW_RELEASE && window->keys[key] == GLFW_RELEASE)
+            return;
+
+        if (action == GLFW_PRESS && window->keys[key] == GLFW_PRESS)
+            repeated = GLFW_TRUE;
+
+        if (action == GLFW_RELEASE && window->stickyKeys)
+            window->keys[key] = _GLFW_STICK;
+        else
+            window->keys[key] = (char) action;
+
+        if (repeated)
+            action = GLFW_REPEAT;
+    }
+
+    if (!window->lockKeyMods)
+        mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK);
+
+    if (window->callbacks.key)
+        window->callbacks.key((GLFWwindow*) window, key, scancode, action, mods);
+}
+
+// Notifies shared code of a Unicode codepoint input event
+// The 'plain' parameter determines whether to emit a regular character event
+//
+void _glfwInputChar(_GLFWwindow* window, uint32_t codepoint, int mods, GLFWbool plain)
+{
+    assert(window != NULL);
+    assert(mods == (mods & GLFW_MOD_MASK));
+    assert(plain == GLFW_TRUE || plain == GLFW_FALSE);
+
+    if (codepoint < 32 || (codepoint > 126 && codepoint < 160))
+        return;
+
+    if (!window->lockKeyMods)
+        mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK);
+
+    if (window->callbacks.charmods)
+        window->callbacks.charmods((GLFWwindow*) window, codepoint, mods);
+
+    if (plain)
+    {
+        if (window->callbacks.character)
+            window->callbacks.character((GLFWwindow*) window, codepoint);
+    }
+}
+
+// Notifies shared code of a scroll event
+//
+void _glfwInputScroll(_GLFWwindow* window, double xoffset, double yoffset)
+{
+    assert(window != NULL);
+    assert(xoffset > -FLT_MAX);
+    assert(xoffset < FLT_MAX);
+    assert(yoffset > -FLT_MAX);
+    assert(yoffset < FLT_MAX);
+
+    if (window->callbacks.scroll)
+        window->callbacks.scroll((GLFWwindow*) window, xoffset, yoffset);
+}
+
+// Notifies shared code of a mouse button click event
+//
+void _glfwInputMouseClick(_GLFWwindow* window, int button, int action, int mods)
+{
+    assert(window != NULL);
+    assert(button >= 0);
+    assert(action == GLFW_PRESS || action == GLFW_RELEASE);
+    assert(mods == (mods & GLFW_MOD_MASK));
+
+    if (button < 0 || (!window->disableMouseButtonLimit && button > GLFW_MOUSE_BUTTON_LAST))
+        return;
+
+    if (!window->lockKeyMods)
+        mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK);
+
+    if (button <= GLFW_MOUSE_BUTTON_LAST)
+    {
+        if (action == GLFW_RELEASE && window->stickyMouseButtons)
+            window->mouseButtons[button] = _GLFW_STICK;
+        else
+            window->mouseButtons[button] = (char) action;
+    }
+
+    if (window->callbacks.mouseButton)
+        window->callbacks.mouseButton((GLFWwindow*) window, button, action, mods);
+}
+
+// Notifies shared code of a cursor motion event
+// The position is specified in content area relative screen coordinates
+//
+void _glfwInputCursorPos(_GLFWwindow* window, double xpos, double ypos)
+{
+    assert(window != NULL);
+    assert(xpos > -FLT_MAX);
+    assert(xpos < FLT_MAX);
+    assert(ypos > -FLT_MAX);
+    assert(ypos < FLT_MAX);
+
+    if (window->virtualCursorPosX == xpos && window->virtualCursorPosY == ypos)
+        return;
+
+    window->virtualCursorPosX = xpos;
+    window->virtualCursorPosY = ypos;
+
+    if (window->callbacks.cursorPos)
+        window->callbacks.cursorPos((GLFWwindow*) window, xpos, ypos);
+}
+
+// Notifies shared code of a cursor enter/leave event
+//
+void _glfwInputCursorEnter(_GLFWwindow* window, GLFWbool entered)
+{
+    assert(window != NULL);
+    assert(entered == GLFW_TRUE || entered == GLFW_FALSE);
+
+    if (window->callbacks.cursorEnter)
+        window->callbacks.cursorEnter((GLFWwindow*) window, entered);
+}
+
+// Notifies shared code of files or directories dropped on a window
+//
+void _glfwInputDrop(_GLFWwindow* window, int count, const char** paths)
+{
+    assert(window != NULL);
+    assert(count > 0);
+    assert(paths != NULL);
+
+    if (window->callbacks.drop)
+        window->callbacks.drop((GLFWwindow*) window, count, paths);
+}
+
+// Notifies shared code of a joystick connection or disconnection
+//
+void _glfwInputJoystick(_GLFWjoystick* js, int event)
+{
+    assert(js != NULL);
+    assert(event == GLFW_CONNECTED || event == GLFW_DISCONNECTED);
+
+    if (event == GLFW_CONNECTED)
+        js->connected = GLFW_TRUE;
+    else if (event == GLFW_DISCONNECTED)
+        js->connected = GLFW_FALSE;
+
+    if (_glfw.callbacks.joystick)
+        _glfw.callbacks.joystick((int) (js - _glfw.joysticks), event);
+}
+
+// Notifies shared code of the new value of a joystick axis
+//
+void _glfwInputJoystickAxis(_GLFWjoystick* js, int axis, float value)
+{
+    assert(js != NULL);
+    assert(axis >= 0);
+    assert(axis < js->axisCount);
+
+    js->axes[axis] = value;
+}
+
+// Notifies shared code of the new value of a joystick button
+//
+void _glfwInputJoystickButton(_GLFWjoystick* js, int button, char value)
+{
+    assert(js != NULL);
+    assert(button >= 0);
+    assert(button < js->buttonCount);
+    assert(value == GLFW_PRESS || value == GLFW_RELEASE);
+
+    js->buttons[button] = value;
+}
+
+// Notifies shared code of the new value of a joystick hat
+//
+void _glfwInputJoystickHat(_GLFWjoystick* js, int hat, char value)
+{
+    int base;
+
+    assert(js != NULL);
+    assert(hat >= 0);
+    assert(hat < js->hatCount);
+
+    // Valid hat values only use the least significant nibble
+    assert((value & 0xf0) == 0);
+    // Valid hat values do not have both bits of an axis set
+    assert((value & GLFW_HAT_LEFT) == 0 || (value & GLFW_HAT_RIGHT) == 0);
+    assert((value & GLFW_HAT_UP) == 0 || (value & GLFW_HAT_DOWN) == 0);
+
+    base = js->buttonCount + hat * 4;
+
+    js->buttons[base + 0] = (value & 0x01) ? GLFW_PRESS : GLFW_RELEASE;
+    js->buttons[base + 1] = (value & 0x02) ? GLFW_PRESS : GLFW_RELEASE;
+    js->buttons[base + 2] = (value & 0x04) ? GLFW_PRESS : GLFW_RELEASE;
+    js->buttons[base + 3] = (value & 0x08) ? GLFW_PRESS : GLFW_RELEASE;
+
+    js->hats[hat] = value;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Adds the built-in set of gamepad mappings
+//
+void _glfwInitGamepadMappings(void)
+{
+    size_t i;
+    const size_t count = sizeof(_glfwDefaultMappings) / sizeof(char*);
+    _glfw.mappings = _glfw_calloc(count, sizeof(_GLFWmapping));
+
+    for (i = 0;  i < count;  i++)
+    {
+        if (parseMapping(&_glfw.mappings[_glfw.mappingCount], _glfwDefaultMappings[i]))
+            _glfw.mappingCount++;
+    }
+}
+
+// Returns an available joystick object with arrays and name allocated
+//
+_GLFWjoystick* _glfwAllocJoystick(const char* name,
+                                  const char* guid,
+                                  int axisCount,
+                                  int buttonCount,
+                                  int hatCount)
+{
+    int jid;
+    _GLFWjoystick* js;
+
+    for (jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        if (!_glfw.joysticks[jid].allocated)
+            break;
+    }
+
+    if (jid > GLFW_JOYSTICK_LAST)
+        return NULL;
+
+    js = _glfw.joysticks + jid;
+    js->allocated   = GLFW_TRUE;
+    js->axes        = _glfw_calloc(axisCount, sizeof(float));
+    js->buttons     = _glfw_calloc(buttonCount + (size_t) hatCount * 4, 1);
+    js->hats        = _glfw_calloc(hatCount, 1);
+    js->axisCount   = axisCount;
+    js->buttonCount = buttonCount;
+    js->hatCount    = hatCount;
+
+    strncpy(js->name, name, sizeof(js->name) - 1);
+    strncpy(js->guid, guid, sizeof(js->guid) - 1);
+    js->mapping = findValidMapping(js);
+
+    return js;
+}
+
+// Frees arrays and name and flags the joystick object as unused
+//
+void _glfwFreeJoystick(_GLFWjoystick* js)
+{
+    _glfw_free(js->axes);
+    _glfw_free(js->buttons);
+    _glfw_free(js->hats);
+    memset(js, 0, sizeof(_GLFWjoystick));
+}
+
+// Center the cursor in the content area of the specified window
+//
+void _glfwCenterCursorInContentArea(_GLFWwindow* window)
+{
+    int width, height;
+
+    _glfw.platform.getWindowSize(window, &width, &height);
+    _glfw.platform.setCursorPos(window, width / 2.0, height / 2.0);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW public API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI int glfwGetInputMode(GLFWwindow* handle, int mode)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(0);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    switch (mode)
+    {
+        case GLFW_CURSOR:
+            return window->cursorMode;
+        case GLFW_STICKY_KEYS:
+            return window->stickyKeys;
+        case GLFW_STICKY_MOUSE_BUTTONS:
+            return window->stickyMouseButtons;
+        case GLFW_LOCK_KEY_MODS:
+            return window->lockKeyMods;
+        case GLFW_RAW_MOUSE_MOTION:
+            return window->rawMouseMotion;
+        case GLFW_UNLIMITED_MOUSE_BUTTONS:
+            return window->disableMouseButtonLimit;
+    }
+
+    _glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode 0x%08X", mode);
+    return 0;
+}
+
+GLFWAPI void glfwSetInputMode(GLFWwindow* handle, int mode, int value)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    switch (mode)
+    {
+        case GLFW_CURSOR:
+        {
+            if (value != GLFW_CURSOR_NORMAL &&
+                value != GLFW_CURSOR_HIDDEN &&
+                value != GLFW_CURSOR_DISABLED &&
+                value != GLFW_CURSOR_CAPTURED)
+            {
+                _glfwInputError(GLFW_INVALID_ENUM,
+                                "Invalid cursor mode 0x%08X",
+                                value);
+                return;
+            }
+
+            if (window->cursorMode == value)
+                return;
+
+            window->cursorMode = value;
+
+            _glfw.platform.getCursorPos(window,
+                                        &window->virtualCursorPosX,
+                                        &window->virtualCursorPosY);
+            _glfw.platform.setCursorMode(window, value);
+            return;
+        }
+
+        case GLFW_STICKY_KEYS:
+        {
+            value = value ? GLFW_TRUE : GLFW_FALSE;
+            if (window->stickyKeys == value)
+                return;
+
+            if (!value)
+            {
+                int i;
+
+                // Release all sticky keys
+                for (i = 0;  i <= GLFW_KEY_LAST;  i++)
+                {
+                    if (window->keys[i] == _GLFW_STICK)
+                        window->keys[i] = GLFW_RELEASE;
+                }
+            }
+
+            window->stickyKeys = value;
+            return;
+        }
+
+        case GLFW_STICKY_MOUSE_BUTTONS:
+        {
+            value = value ? GLFW_TRUE : GLFW_FALSE;
+            if (window->stickyMouseButtons == value)
+                return;
+
+            if (!value)
+            {
+                int i;
+
+                // Release all sticky mouse buttons
+                for (i = 0;  i <= GLFW_MOUSE_BUTTON_LAST;  i++)
+                {
+                    if (window->mouseButtons[i] == _GLFW_STICK)
+                        window->mouseButtons[i] = GLFW_RELEASE;
+                }
+            }
+
+            window->stickyMouseButtons = value;
+            return;
+        }
+
+        case GLFW_LOCK_KEY_MODS:
+        {
+            window->lockKeyMods = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        }
+
+        case GLFW_RAW_MOUSE_MOTION:
+        {
+            if (!_glfw.platform.rawMouseMotionSupported())
+            {
+                _glfwInputError(GLFW_PLATFORM_ERROR,
+                                "Raw mouse motion is not supported on this system");
+                return;
+            }
+
+            value = value ? GLFW_TRUE : GLFW_FALSE;
+            if (window->rawMouseMotion == value)
+                return;
+
+            window->rawMouseMotion = value;
+            _glfw.platform.setRawMouseMotion(window, value);
+            return;
+        }
+
+        case GLFW_UNLIMITED_MOUSE_BUTTONS:
+        {
+            window->disableMouseButtonLimit = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        }
+    }
+
+    _glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode 0x%08X", mode);
+}
+
+GLFWAPI int glfwRawMouseMotionSupported(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+    return _glfw.platform.rawMouseMotionSupported();
+}
+
+GLFWAPI const char* glfwGetKeyName(int key, int scancode)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (key != GLFW_KEY_UNKNOWN)
+    {
+        if (key < GLFW_KEY_SPACE || key > GLFW_KEY_LAST)
+        {
+            _glfwInputError(GLFW_INVALID_ENUM, "Invalid key %i", key);
+            return NULL;
+        }
+
+        if (key != GLFW_KEY_KP_EQUAL &&
+            (key < GLFW_KEY_KP_0 || key > GLFW_KEY_KP_ADD) &&
+            (key < GLFW_KEY_APOSTROPHE || key > GLFW_KEY_WORLD_2))
+        {
+            return NULL;
+        }
+
+        scancode = _glfw.platform.getKeyScancode(key);
+    }
+
+    return _glfw.platform.getScancodeName(scancode);
+}
+
+GLFWAPI int glfwGetKeyScancode(int key)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(0);
+
+    if (key < GLFW_KEY_SPACE || key > GLFW_KEY_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid key %i", key);
+        return -1;
+    }
+
+    return _glfw.platform.getKeyScancode(key);
+}
+
+GLFWAPI int glfwGetKey(GLFWwindow* handle, int key)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_RELEASE);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (key < GLFW_KEY_SPACE || key > GLFW_KEY_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid key %i", key);
+        return GLFW_RELEASE;
+    }
+
+    if (window->keys[key] == _GLFW_STICK)
+    {
+        // Sticky mode: release key now
+        window->keys[key] = GLFW_RELEASE;
+        return GLFW_PRESS;
+    }
+
+    return (int) window->keys[key];
+}
+
+GLFWAPI int glfwGetMouseButton(GLFWwindow* handle, int button)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_RELEASE);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (button < GLFW_MOUSE_BUTTON_1 || button > GLFW_MOUSE_BUTTON_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid mouse button %i", button);
+        return GLFW_RELEASE;
+    }
+
+    if (window->mouseButtons[button] == _GLFW_STICK)
+    {
+        // Sticky mode: release mouse button now
+        window->mouseButtons[button] = GLFW_RELEASE;
+        return GLFW_PRESS;
+    }
+
+    return (int) window->mouseButtons[button];
+}
+
+GLFWAPI void glfwGetCursorPos(GLFWwindow* handle, double* xpos, double* ypos)
+{
+    if (xpos)
+        *xpos = 0;
+    if (ypos)
+        *ypos = 0;
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->cursorMode == GLFW_CURSOR_DISABLED)
+    {
+        if (xpos)
+            *xpos = window->virtualCursorPosX;
+        if (ypos)
+            *ypos = window->virtualCursorPosY;
+    }
+    else
+        _glfw.platform.getCursorPos(window, xpos, ypos);
+}
+
+GLFWAPI void glfwSetCursorPos(GLFWwindow* handle, double xpos, double ypos)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (xpos != xpos || xpos < -DBL_MAX || xpos > DBL_MAX ||
+        ypos != ypos || ypos < -DBL_MAX || ypos > DBL_MAX)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE,
+                        "Invalid cursor position %f %f",
+                        xpos, ypos);
+        return;
+    }
+
+    if (!_glfw.platform.windowFocused(window))
+        return;
+
+    if (window->cursorMode == GLFW_CURSOR_DISABLED)
+    {
+        // Only update the accumulated position if the cursor is disabled
+        window->virtualCursorPosX = xpos;
+        window->virtualCursorPosY = ypos;
+    }
+    else
+    {
+        // Update system cursor position
+        _glfw.platform.setCursorPos(window, xpos, ypos);
+    }
+}
+
+GLFWAPI GLFWcursor* glfwCreateCursor(const GLFWimage* image, int xhot, int yhot)
+{
+    _GLFWcursor* cursor;
+
+    assert(image != NULL);
+    assert(image->pixels != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (image->width <= 0 || image->height <= 0)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Invalid image dimensions for cursor");
+        return NULL;
+    }
+
+    cursor = _glfw_calloc(1, sizeof(_GLFWcursor));
+    cursor->next = _glfw.cursorListHead;
+    _glfw.cursorListHead = cursor;
+
+    if (!_glfw.platform.createCursor(cursor, image, xhot, yhot))
+    {
+        glfwDestroyCursor((GLFWcursor*) cursor);
+        return NULL;
+    }
+
+    return (GLFWcursor*) cursor;
+}
+
+GLFWAPI GLFWcursor* glfwCreateStandardCursor(int shape)
+{
+    _GLFWcursor* cursor;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (shape != GLFW_ARROW_CURSOR &&
+        shape != GLFW_IBEAM_CURSOR &&
+        shape != GLFW_CROSSHAIR_CURSOR &&
+        shape != GLFW_POINTING_HAND_CURSOR &&
+        shape != GLFW_RESIZE_EW_CURSOR &&
+        shape != GLFW_RESIZE_NS_CURSOR &&
+        shape != GLFW_RESIZE_NWSE_CURSOR &&
+        shape != GLFW_RESIZE_NESW_CURSOR &&
+        shape != GLFW_RESIZE_ALL_CURSOR &&
+        shape != GLFW_NOT_ALLOWED_CURSOR)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid standard cursor 0x%08X", shape);
+        return NULL;
+    }
+
+    cursor = _glfw_calloc(1, sizeof(_GLFWcursor));
+    cursor->next = _glfw.cursorListHead;
+    _glfw.cursorListHead = cursor;
+
+    if (!_glfw.platform.createStandardCursor(cursor, shape))
+    {
+        glfwDestroyCursor((GLFWcursor*) cursor);
+        return NULL;
+    }
+
+    return (GLFWcursor*) cursor;
+}
+
+GLFWAPI void glfwDestroyCursor(GLFWcursor* handle)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWcursor* cursor = (_GLFWcursor*) handle;
+
+    if (cursor == NULL)
+        return;
+
+    // Make sure the cursor is not being used by any window
+    {
+        _GLFWwindow* window;
+
+        for (window = _glfw.windowListHead;  window;  window = window->next)
+        {
+            if (window->cursor == cursor)
+                glfwSetCursor((GLFWwindow*) window, NULL);
+        }
+    }
+
+    _glfw.platform.destroyCursor(cursor);
+
+    // Unlink cursor from global linked list
+    {
+        _GLFWcursor** prev = &_glfw.cursorListHead;
+
+        while (*prev != cursor)
+            prev = &((*prev)->next);
+
+        *prev = cursor->next;
+    }
+
+    _glfw_free(cursor);
+}
+
+GLFWAPI void glfwSetCursor(GLFWwindow* windowHandle, GLFWcursor* cursorHandle)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) windowHandle;
+    _GLFWcursor* cursor = (_GLFWcursor*) cursorHandle;
+    assert(window != NULL);
+
+    window->cursor = cursor;
+
+    _glfw.platform.setCursor(window, cursor);
+}
+
+GLFWAPI GLFWkeyfun glfwSetKeyCallback(GLFWwindow* handle, GLFWkeyfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWkeyfun, window->callbacks.key, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWcharfun glfwSetCharCallback(GLFWwindow* handle, GLFWcharfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWcharfun, window->callbacks.character, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWcharmodsfun glfwSetCharModsCallback(GLFWwindow* handle, GLFWcharmodsfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWcharmodsfun, window->callbacks.charmods, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWmousebuttonfun glfwSetMouseButtonCallback(GLFWwindow* handle,
+                                                      GLFWmousebuttonfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWmousebuttonfun, window->callbacks.mouseButton, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWcursorposfun glfwSetCursorPosCallback(GLFWwindow* handle,
+                                                  GLFWcursorposfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWcursorposfun, window->callbacks.cursorPos, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWcursorenterfun glfwSetCursorEnterCallback(GLFWwindow* handle,
+                                                      GLFWcursorenterfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWcursorenterfun, window->callbacks.cursorEnter, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWscrollfun glfwSetScrollCallback(GLFWwindow* handle,
+                                            GLFWscrollfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWscrollfun, window->callbacks.scroll, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWdropfun glfwSetDropCallback(GLFWwindow* handle, GLFWdropfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWdropfun, window->callbacks.drop, cbfun);
+    return cbfun;
+}
+
+GLFWAPI int glfwJoystickPresent(int jid)
+{
+    _GLFWjoystick* js;
+
+    assert(jid >= GLFW_JOYSTICK_1);
+    assert(jid <= GLFW_JOYSTICK_LAST);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+
+    if (jid < 0 || jid > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid);
+        return GLFW_FALSE;
+    }
+
+    if (!initJoysticks())
+        return GLFW_FALSE;
+
+    js = _glfw.joysticks + jid;
+    if (!js->connected)
+        return GLFW_FALSE;
+
+    return _glfw.platform.pollJoystick(js, _GLFW_POLL_PRESENCE);
+}
+
+GLFWAPI const float* glfwGetJoystickAxes(int jid, int* count)
+{
+    _GLFWjoystick* js;
+
+    assert(jid >= GLFW_JOYSTICK_1);
+    assert(jid <= GLFW_JOYSTICK_LAST);
+    assert(count != NULL);
+
+    *count = 0;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (jid < 0 || jid > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid);
+        return NULL;
+    }
+
+    if (!initJoysticks())
+        return NULL;
+
+    js = _glfw.joysticks + jid;
+    if (!js->connected)
+        return NULL;
+
+    if (!_glfw.platform.pollJoystick(js, _GLFW_POLL_AXES))
+        return NULL;
+
+    *count = js->axisCount;
+    return js->axes;
+}
+
+GLFWAPI const unsigned char* glfwGetJoystickButtons(int jid, int* count)
+{
+    _GLFWjoystick* js;
+
+    assert(jid >= GLFW_JOYSTICK_1);
+    assert(jid <= GLFW_JOYSTICK_LAST);
+    assert(count != NULL);
+
+    *count = 0;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (jid < 0 || jid > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid);
+        return NULL;
+    }
+
+    if (!initJoysticks())
+        return NULL;
+
+    js = _glfw.joysticks + jid;
+    if (!js->connected)
+        return NULL;
+
+    if (!_glfw.platform.pollJoystick(js, _GLFW_POLL_BUTTONS))
+        return NULL;
+
+    if (_glfw.hints.init.hatButtons)
+        *count = js->buttonCount + js->hatCount * 4;
+    else
+        *count = js->buttonCount;
+
+    return js->buttons;
+}
+
+GLFWAPI const unsigned char* glfwGetJoystickHats(int jid, int* count)
+{
+    _GLFWjoystick* js;
+
+    assert(jid >= GLFW_JOYSTICK_1);
+    assert(jid <= GLFW_JOYSTICK_LAST);
+    assert(count != NULL);
+
+    *count = 0;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (jid < 0 || jid > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid);
+        return NULL;
+    }
+
+    if (!initJoysticks())
+        return NULL;
+
+    js = _glfw.joysticks + jid;
+    if (!js->connected)
+        return NULL;
+
+    if (!_glfw.platform.pollJoystick(js, _GLFW_POLL_BUTTONS))
+        return NULL;
+
+    *count = js->hatCount;
+    return js->hats;
+}
+
+GLFWAPI const char* glfwGetJoystickName(int jid)
+{
+    _GLFWjoystick* js;
+
+    assert(jid >= GLFW_JOYSTICK_1);
+    assert(jid <= GLFW_JOYSTICK_LAST);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (jid < 0 || jid > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid);
+        return NULL;
+    }
+
+    if (!initJoysticks())
+        return NULL;
+
+    js = _glfw.joysticks + jid;
+    if (!js->connected)
+        return NULL;
+
+    if (!_glfw.platform.pollJoystick(js, _GLFW_POLL_PRESENCE))
+        return NULL;
+
+    return js->name;
+}
+
+GLFWAPI const char* glfwGetJoystickGUID(int jid)
+{
+    _GLFWjoystick* js;
+
+    assert(jid >= GLFW_JOYSTICK_1);
+    assert(jid <= GLFW_JOYSTICK_LAST);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (jid < 0 || jid > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid);
+        return NULL;
+    }
+
+    if (!initJoysticks())
+        return NULL;
+
+    js = _glfw.joysticks + jid;
+    if (!js->connected)
+        return NULL;
+
+    if (!_glfw.platform.pollJoystick(js, _GLFW_POLL_PRESENCE))
+        return NULL;
+
+    return js->guid;
+}
+
+GLFWAPI void glfwSetJoystickUserPointer(int jid, void* pointer)
+{
+    _GLFWjoystick* js;
+
+    assert(jid >= GLFW_JOYSTICK_1);
+    assert(jid <= GLFW_JOYSTICK_LAST);
+
+    _GLFW_REQUIRE_INIT();
+
+    js = _glfw.joysticks + jid;
+    if (!js->allocated)
+        return;
+
+    js->userPointer = pointer;
+}
+
+GLFWAPI void* glfwGetJoystickUserPointer(int jid)
+{
+    _GLFWjoystick* js;
+
+    assert(jid >= GLFW_JOYSTICK_1);
+    assert(jid <= GLFW_JOYSTICK_LAST);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    js = _glfw.joysticks + jid;
+    if (!js->allocated)
+        return NULL;
+
+    return js->userPointer;
+}
+
+GLFWAPI GLFWjoystickfun glfwSetJoystickCallback(GLFWjoystickfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (!initJoysticks())
+        return NULL;
+
+    _GLFW_SWAP(GLFWjoystickfun, _glfw.callbacks.joystick, cbfun);
+    return cbfun;
+}
+
+GLFWAPI int glfwUpdateGamepadMappings(const char* string)
+{
+    int jid;
+    const char* c = string;
+
+    assert(string != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+
+    while (*c)
+    {
+        if ((*c >= '0' && *c <= '9') ||
+            (*c >= 'a' && *c <= 'f') ||
+            (*c >= 'A' && *c <= 'F'))
+        {
+            char line[1024];
+
+            const size_t length = strcspn(c, "\r\n");
+            if (length < sizeof(line))
+            {
+                _GLFWmapping mapping = {{0}};
+
+                memcpy(line, c, length);
+                line[length] = '\0';
+
+                if (parseMapping(&mapping, line))
+                {
+                    _GLFWmapping* previous = findMapping(mapping.guid);
+                    if (previous)
+                        *previous = mapping;
+                    else
+                    {
+                        _glfw.mappingCount++;
+                        _glfw.mappings =
+                            _glfw_realloc(_glfw.mappings,
+                                          sizeof(_GLFWmapping) * _glfw.mappingCount);
+                        _glfw.mappings[_glfw.mappingCount - 1] = mapping;
+                    }
+                }
+            }
+
+            c += length;
+        }
+        else
+        {
+            c += strcspn(c, "\r\n");
+            c += strspn(c, "\r\n");
+        }
+    }
+
+    for (jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        _GLFWjoystick* js = _glfw.joysticks + jid;
+        if (js->connected)
+            js->mapping = findValidMapping(js);
+    }
+
+    return GLFW_TRUE;
+}
+
+GLFWAPI int glfwJoystickIsGamepad(int jid)
+{
+    _GLFWjoystick* js;
+
+    assert(jid >= GLFW_JOYSTICK_1);
+    assert(jid <= GLFW_JOYSTICK_LAST);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+
+    if (jid < 0 || jid > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid);
+        return GLFW_FALSE;
+    }
+
+    if (!initJoysticks())
+        return GLFW_FALSE;
+
+    js = _glfw.joysticks + jid;
+    if (!js->connected)
+        return GLFW_FALSE;
+
+    if (!_glfw.platform.pollJoystick(js, _GLFW_POLL_PRESENCE))
+        return GLFW_FALSE;
+
+    return js->mapping != NULL;
+}
+
+GLFWAPI const char* glfwGetGamepadName(int jid)
+{
+    _GLFWjoystick* js;
+
+    assert(jid >= GLFW_JOYSTICK_1);
+    assert(jid <= GLFW_JOYSTICK_LAST);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (jid < 0 || jid > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid);
+        return NULL;
+    }
+
+    if (!initJoysticks())
+        return NULL;
+
+    js = _glfw.joysticks + jid;
+    if (!js->connected)
+        return NULL;
+
+    if (!_glfw.platform.pollJoystick(js, _GLFW_POLL_PRESENCE))
+        return NULL;
+
+    if (!js->mapping)
+        return NULL;
+
+    return js->mapping->name;
+}
+
+GLFWAPI int glfwGetGamepadState(int jid, GLFWgamepadstate* state)
+{
+    int i;
+    _GLFWjoystick* js;
+
+    assert(jid >= GLFW_JOYSTICK_1);
+    assert(jid <= GLFW_JOYSTICK_LAST);
+    assert(state != NULL);
+
+    memset(state, 0, sizeof(GLFWgamepadstate));
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+
+    if (jid < 0 || jid > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid);
+        return GLFW_FALSE;
+    }
+
+    if (!initJoysticks())
+        return GLFW_FALSE;
+
+    js = _glfw.joysticks + jid;
+    if (!js->connected)
+        return GLFW_FALSE;
+
+    if (!_glfw.platform.pollJoystick(js, _GLFW_POLL_ALL))
+        return GLFW_FALSE;
+
+    if (!js->mapping)
+        return GLFW_FALSE;
+
+    for (i = 0;  i <= GLFW_GAMEPAD_BUTTON_LAST;  i++)
+    {
+        const _GLFWmapelement* e = js->mapping->buttons + i;
+        if (e->type == _GLFW_JOYSTICK_AXIS)
+        {
+            const float value = js->axes[e->index] * e->axisScale + e->axisOffset;
+            // HACK: This should be baked into the value transform
+            // TODO: Bake into transform when implementing output modifiers
+            if (e->axisOffset < 0 || (e->axisOffset == 0 && e->axisScale > 0))
+            {
+                if (value >= 0.f)
+                    state->buttons[i] = GLFW_PRESS;
+            }
+            else
+            {
+                if (value <= 0.f)
+                    state->buttons[i] = GLFW_PRESS;
+            }
+        }
+        else if (e->type == _GLFW_JOYSTICK_HATBIT)
+        {
+            const unsigned int hat = e->index >> 4;
+            const unsigned int bit = e->index & 0xf;
+            if (js->hats[hat] & bit)
+                state->buttons[i] = GLFW_PRESS;
+        }
+        else if (e->type == _GLFW_JOYSTICK_BUTTON)
+            state->buttons[i] = js->buttons[e->index];
+    }
+
+    for (i = 0;  i <= GLFW_GAMEPAD_AXIS_LAST;  i++)
+    {
+        const _GLFWmapelement* e = js->mapping->axes + i;
+        if (e->type == _GLFW_JOYSTICK_AXIS)
+        {
+            const float value = js->axes[e->index] * e->axisScale + e->axisOffset;
+            state->axes[i] = fminf(fmaxf(value, -1.f), 1.f);
+        }
+        else if (e->type == _GLFW_JOYSTICK_HATBIT)
+        {
+            const unsigned int hat = e->index >> 4;
+            const unsigned int bit = e->index & 0xf;
+            if (js->hats[hat] & bit)
+                state->axes[i] = 1.f;
+            else
+                state->axes[i] = -1.f;
+        }
+        else if (e->type == _GLFW_JOYSTICK_BUTTON)
+            state->axes[i] = js->buttons[e->index] * 2.f - 1.f;
+    }
+
+    return GLFW_TRUE;
+}
+
+GLFWAPI void glfwSetClipboardString(GLFWwindow* handle, const char* string)
+{
+    assert(string != NULL);
+
+    _GLFW_REQUIRE_INIT();
+    _glfw.platform.setClipboardString(string);
+}
+
+GLFWAPI const char* glfwGetClipboardString(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return _glfw.platform.getClipboardString();
+}
+
+GLFWAPI double glfwGetTime(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(0.0);
+    return (double) (_glfwPlatformGetTimerValue() - _glfw.timer.offset) /
+        _glfwPlatformGetTimerFrequency();
+}
+
+GLFWAPI void glfwSetTime(double time)
+{
+    _GLFW_REQUIRE_INIT();
+
+    if (time != time || time < 0.0 || time > 18446744073.0)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Invalid time %f", time);
+        return;
+    }
+
+    _glfw.timer.offset = _glfwPlatformGetTimerValue() -
+        (uint64_t) (time * _glfwPlatformGetTimerFrequency());
+}
+
+GLFWAPI uint64_t glfwGetTimerValue(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(0);
+    return _glfwPlatformGetTimerValue();
+}
+
+GLFWAPI uint64_t glfwGetTimerFrequency(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(0);
+    return _glfwPlatformGetTimerFrequency();
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/internal.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/internal.h
new file mode 100644
index 000000000000..4f097aa82ba6
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/internal.h
@@ -0,0 +1,1022 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#pragma once
+
+#if defined(_GLFW_USE_CONFIG_H)
+ #include "glfw_config.h"
+#endif
+
+#if defined(GLFW_INCLUDE_GLCOREARB) || \
+    defined(GLFW_INCLUDE_ES1)       || \
+    defined(GLFW_INCLUDE_ES2)       || \
+    defined(GLFW_INCLUDE_ES3)       || \
+    defined(GLFW_INCLUDE_ES31)      || \
+    defined(GLFW_INCLUDE_ES32)      || \
+    defined(GLFW_INCLUDE_NONE)      || \
+    defined(GLFW_INCLUDE_GLEXT)     || \
+    defined(GLFW_INCLUDE_GLU)       || \
+    defined(GLFW_INCLUDE_VULKAN)    || \
+    defined(GLFW_DLL)
+ #error "You must not define any header option macros when compiling GLFW"
+#endif
+
+#define GLFW_INCLUDE_NONE
+#include "../include/GLFW/glfw3.h"
+
+#include <stdbool.h>
+
+#define _GLFW_INSERT_FIRST      0
+#define _GLFW_INSERT_LAST       1
+
+#define _GLFW_POLL_PRESENCE     0
+#define _GLFW_POLL_AXES         1
+#define _GLFW_POLL_BUTTONS      2
+#define _GLFW_POLL_ALL          (_GLFW_POLL_AXES | _GLFW_POLL_BUTTONS)
+
+#define _GLFW_MESSAGE_SIZE      1024
+
+typedef int GLFWbool;
+typedef void (*GLFWproc)(void);
+
+typedef struct _GLFWerror       _GLFWerror;
+typedef struct _GLFWinitconfig  _GLFWinitconfig;
+typedef struct _GLFWwndconfig   _GLFWwndconfig;
+typedef struct _GLFWctxconfig   _GLFWctxconfig;
+typedef struct _GLFWfbconfig    _GLFWfbconfig;
+typedef struct _GLFWcontext     _GLFWcontext;
+typedef struct _GLFWwindow      _GLFWwindow;
+typedef struct _GLFWplatform    _GLFWplatform;
+typedef struct _GLFWlibrary     _GLFWlibrary;
+typedef struct _GLFWmonitor     _GLFWmonitor;
+typedef struct _GLFWcursor      _GLFWcursor;
+typedef struct _GLFWmapelement  _GLFWmapelement;
+typedef struct _GLFWmapping     _GLFWmapping;
+typedef struct _GLFWjoystick    _GLFWjoystick;
+typedef struct _GLFWtls         _GLFWtls;
+typedef struct _GLFWmutex       _GLFWmutex;
+
+#define GL_VERSION 0x1f02
+#define GL_NONE 0
+#define GL_COLOR_BUFFER_BIT 0x00004000
+#define GL_UNSIGNED_BYTE 0x1401
+#define GL_EXTENSIONS 0x1f03
+#define GL_NUM_EXTENSIONS 0x821d
+#define GL_CONTEXT_FLAGS 0x821e
+#define GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT 0x00000001
+#define GL_CONTEXT_FLAG_DEBUG_BIT 0x00000002
+#define GL_CONTEXT_PROFILE_MASK 0x9126
+#define GL_CONTEXT_COMPATIBILITY_PROFILE_BIT 0x00000002
+#define GL_CONTEXT_CORE_PROFILE_BIT 0x00000001
+#define GL_RESET_NOTIFICATION_STRATEGY_ARB 0x8256
+#define GL_LOSE_CONTEXT_ON_RESET_ARB 0x8252
+#define GL_NO_RESET_NOTIFICATION_ARB 0x8261
+#define GL_CONTEXT_RELEASE_BEHAVIOR 0x82fb
+#define GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH 0x82fc
+#define GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR 0x00000008
+
+typedef int GLint;
+typedef unsigned int GLuint;
+typedef unsigned int GLenum;
+typedef unsigned int GLbitfield;
+typedef unsigned char GLubyte;
+
+typedef void (APIENTRY * PFNGLCLEARPROC)(GLbitfield);
+typedef const GLubyte* (APIENTRY * PFNGLGETSTRINGPROC)(GLenum);
+typedef void (APIENTRY * PFNGLGETINTEGERVPROC)(GLenum,GLint*);
+typedef const GLubyte* (APIENTRY * PFNGLGETSTRINGIPROC)(GLenum,GLuint);
+
+#define EGL_SUCCESS 0x3000
+#define EGL_NOT_INITIALIZED 0x3001
+#define EGL_BAD_ACCESS 0x3002
+#define EGL_BAD_ALLOC 0x3003
+#define EGL_BAD_ATTRIBUTE 0x3004
+#define EGL_BAD_CONFIG 0x3005
+#define EGL_BAD_CONTEXT 0x3006
+#define EGL_BAD_CURRENT_SURFACE 0x3007
+#define EGL_BAD_DISPLAY 0x3008
+#define EGL_BAD_MATCH 0x3009
+#define EGL_BAD_NATIVE_PIXMAP 0x300a
+#define EGL_BAD_NATIVE_WINDOW 0x300b
+#define EGL_BAD_PARAMETER 0x300c
+#define EGL_BAD_SURFACE 0x300d
+#define EGL_CONTEXT_LOST 0x300e
+#define EGL_COLOR_BUFFER_TYPE 0x303f
+#define EGL_RGB_BUFFER 0x308e
+#define EGL_SURFACE_TYPE 0x3033
+#define EGL_WINDOW_BIT 0x0004
+#define EGL_RENDERABLE_TYPE 0x3040
+#define EGL_OPENGL_ES_BIT 0x0001
+#define EGL_OPENGL_ES2_BIT 0x0004
+#define EGL_OPENGL_BIT 0x0008
+#define EGL_ALPHA_SIZE 0x3021
+#define EGL_BLUE_SIZE 0x3022
+#define EGL_GREEN_SIZE 0x3023
+#define EGL_RED_SIZE 0x3024
+#define EGL_DEPTH_SIZE 0x3025
+#define EGL_STENCIL_SIZE 0x3026
+#define EGL_SAMPLES 0x3031
+#define EGL_OPENGL_ES_API 0x30a0
+#define EGL_OPENGL_API 0x30a2
+#define EGL_NONE 0x3038
+#define EGL_RENDER_BUFFER 0x3086
+#define EGL_SINGLE_BUFFER 0x3085
+#define EGL_EXTENSIONS 0x3055
+#define EGL_CONTEXT_CLIENT_VERSION 0x3098
+#define EGL_NATIVE_VISUAL_ID 0x302e
+#define EGL_NO_SURFACE ((EGLSurface) 0)
+#define EGL_NO_DISPLAY ((EGLDisplay) 0)
+#define EGL_NO_CONTEXT ((EGLContext) 0)
+#define EGL_DEFAULT_DISPLAY ((EGLNativeDisplayType) 0)
+#define EGL_PBUFFER_BIT 0x0001
+#define EGL_WIDTH 0x3057
+#define EGL_HEIGHT 0x3056
+
+#define EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR 0x00000002
+#define EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR 0x00000001
+#define EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR 0x00000002
+#define EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR 0x00000001
+#define EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR 0x31bd
+#define EGL_NO_RESET_NOTIFICATION_KHR 0x31be
+#define EGL_LOSE_CONTEXT_ON_RESET_KHR 0x31bf
+#define EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR 0x00000004
+#define EGL_CONTEXT_MAJOR_VERSION_KHR 0x3098
+#define EGL_CONTEXT_MINOR_VERSION_KHR 0x30fb
+#define EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR 0x30fd
+#define EGL_CONTEXT_FLAGS_KHR 0x30fc
+#define EGL_CONTEXT_OPENGL_NO_ERROR_KHR 0x31b3
+#define EGL_GL_COLORSPACE_KHR 0x309d
+#define EGL_GL_COLORSPACE_SRGB_KHR 0x3089
+#define EGL_CONTEXT_RELEASE_BEHAVIOR_KHR 0x2097
+#define EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR 0
+#define EGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_KHR 0x2098
+#define EGL_PLATFORM_X11_EXT 0x31d5
+#define EGL_PLATFORM_WAYLAND_EXT 0x31d8
+#define EGL_PRESENT_OPAQUE_EXT 0x31df
+#define EGL_PLATFORM_ANGLE_ANGLE 0x3202
+#define EGL_PLATFORM_ANGLE_TYPE_ANGLE 0x3203
+#define EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE 0x320d
+#define EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE 0x320e
+#define EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE 0x3207
+#define EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE 0x3208
+#define EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE 0x3450
+#define EGL_PLATFORM_ANGLE_TYPE_METAL_ANGLE 0x3489
+#define EGL_PLATFORM_ANGLE_NATIVE_PLATFORM_TYPE_ANGLE 0x348f
+#define EGL_PLATFORM_SURFACELESS_MESA 0x31dd
+
+typedef int EGLint;
+typedef unsigned int EGLBoolean;
+typedef unsigned int EGLenum;
+typedef void* EGLConfig;
+typedef void* EGLContext;
+typedef void* EGLDisplay;
+typedef void* EGLSurface;
+
+typedef void* EGLNativeDisplayType;
+typedef void* EGLNativeWindowType;
+
+// EGL function pointer typedefs
+typedef EGLBoolean (APIENTRY * PFN_eglGetConfigAttrib)(EGLDisplay,EGLConfig,EGLint,EGLint*);
+typedef EGLBoolean (APIENTRY * PFN_eglGetConfigs)(EGLDisplay,EGLConfig*,EGLint,EGLint*);
+typedef EGLDisplay (APIENTRY * PFN_eglGetDisplay)(EGLNativeDisplayType);
+typedef EGLint (APIENTRY * PFN_eglGetError)(void);
+typedef EGLBoolean (APIENTRY * PFN_eglInitialize)(EGLDisplay,EGLint*,EGLint*);
+typedef EGLBoolean (APIENTRY * PFN_eglTerminate)(EGLDisplay);
+typedef EGLBoolean (APIENTRY * PFN_eglBindAPI)(EGLenum);
+typedef EGLContext (APIENTRY * PFN_eglCreateContext)(EGLDisplay,EGLConfig,EGLContext,const EGLint*);
+typedef EGLBoolean (APIENTRY * PFN_eglDestroySurface)(EGLDisplay,EGLSurface);
+typedef EGLBoolean (APIENTRY * PFN_eglDestroyContext)(EGLDisplay,EGLContext);
+typedef EGLSurface (APIENTRY * PFN_eglCreateWindowSurface)(EGLDisplay,EGLConfig,EGLNativeWindowType,const EGLint*);
+typedef EGLSurface (APIENTRY * PFN_eglCreatePbufferSurface)(EGLDisplay,EGLContext,const EGLint*);
+typedef EGLBoolean (APIENTRY * PFN_eglMakeCurrent)(EGLDisplay,EGLSurface,EGLSurface,EGLContext);
+typedef EGLBoolean (APIENTRY * PFN_eglSwapBuffers)(EGLDisplay,EGLSurface);
+typedef EGLBoolean (APIENTRY * PFN_eglSwapInterval)(EGLDisplay,EGLint);
+typedef const char* (APIENTRY * PFN_eglQueryString)(EGLDisplay,EGLint);
+typedef GLFWglproc (APIENTRY * PFN_eglGetProcAddress)(const char*);
+#define eglGetConfigAttrib _glfw.egl.GetConfigAttrib
+#define eglGetConfigs _glfw.egl.GetConfigs
+#define eglGetDisplay _glfw.egl.GetDisplay
+#define eglGetError _glfw.egl.GetError
+#define eglInitialize _glfw.egl.Initialize
+#define eglTerminate _glfw.egl.Terminate
+#define eglBindAPI _glfw.egl.BindAPI
+#define eglCreateContext _glfw.egl.CreateContext
+#define eglDestroySurface _glfw.egl.DestroySurface
+#define eglDestroyContext _glfw.egl.DestroyContext
+#define eglCreateWindowSurface _glfw.egl.CreateWindowSurface
+#define eglCreatePbufferSurface _glfw.egl.CreatePbufferSurface
+#define eglMakeCurrent _glfw.egl.MakeCurrent
+#define eglSwapBuffers _glfw.egl.SwapBuffers
+#define eglSwapInterval _glfw.egl.SwapInterval
+#define eglQueryString _glfw.egl.QueryString
+#define eglGetProcAddress _glfw.egl.GetProcAddress
+
+typedef EGLDisplay (APIENTRY * PFNEGLGETPLATFORMDISPLAYEXTPROC)(EGLenum,void*,const EGLint*);
+typedef EGLSurface (APIENTRY * PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC)(EGLDisplay,EGLConfig,void*,const EGLint*);
+#define eglGetPlatformDisplayEXT _glfw.egl.GetPlatformDisplayEXT
+#define eglCreatePlatformWindowSurfaceEXT _glfw.egl.CreatePlatformWindowSurfaceEXT
+
+#define OSMESA_RGBA 0x1908
+#define OSMESA_FORMAT 0x22
+#define OSMESA_DEPTH_BITS 0x30
+#define OSMESA_STENCIL_BITS 0x31
+#define OSMESA_ACCUM_BITS 0x32
+#define OSMESA_PROFILE 0x33
+#define OSMESA_CORE_PROFILE 0x34
+#define OSMESA_COMPAT_PROFILE 0x35
+#define OSMESA_CONTEXT_MAJOR_VERSION 0x36
+#define OSMESA_CONTEXT_MINOR_VERSION 0x37
+
+typedef void* OSMesaContext;
+typedef void (*OSMESAproc)(void);
+
+typedef OSMesaContext (GLAPIENTRY * PFN_OSMesaCreateContextExt)(GLenum,GLint,GLint,GLint,OSMesaContext);
+typedef OSMesaContext (GLAPIENTRY * PFN_OSMesaCreateContextAttribs)(const int*,OSMesaContext);
+typedef void (GLAPIENTRY * PFN_OSMesaDestroyContext)(OSMesaContext);
+typedef int (GLAPIENTRY * PFN_OSMesaMakeCurrent)(OSMesaContext,void*,int,int,int);
+typedef int (GLAPIENTRY * PFN_OSMesaGetColorBuffer)(OSMesaContext,int*,int*,int*,void**);
+typedef int (GLAPIENTRY * PFN_OSMesaGetDepthBuffer)(OSMesaContext,int*,int*,int*,void**);
+typedef GLFWglproc (GLAPIENTRY * PFN_OSMesaGetProcAddress)(const char*);
+#define OSMesaCreateContextExt _glfw.osmesa.CreateContextExt
+#define OSMesaCreateContextAttribs _glfw.osmesa.CreateContextAttribs
+#define OSMesaDestroyContext _glfw.osmesa.DestroyContext
+#define OSMesaMakeCurrent _glfw.osmesa.MakeCurrent
+#define OSMesaGetColorBuffer _glfw.osmesa.GetColorBuffer
+#define OSMesaGetDepthBuffer _glfw.osmesa.GetDepthBuffer
+#define OSMesaGetProcAddress _glfw.osmesa.GetProcAddress
+
+#define VK_NULL_HANDLE 0
+
+typedef void* VkInstance;
+typedef void* VkPhysicalDevice;
+typedef uint64_t VkSurfaceKHR;
+typedef uint32_t VkFlags;
+typedef uint32_t VkBool32;
+
+typedef enum VkStructureType
+{
+    VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR = 1000004000,
+    VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR = 1000005000,
+    VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR = 1000006000,
+    VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR = 1000009000,
+    VK_STRUCTURE_TYPE_MACOS_SURFACE_CREATE_INFO_MVK = 1000123000,
+    VK_STRUCTURE_TYPE_METAL_SURFACE_CREATE_INFO_EXT = 1000217000,
+    VK_STRUCTURE_TYPE_HEADLESS_SURFACE_CREATE_INFO_EXT = 1000256000,
+    VK_STRUCTURE_TYPE_MAX_ENUM = 0x7FFFFFFF
+} VkStructureType;
+
+typedef enum VkResult
+{
+    VK_SUCCESS = 0,
+    VK_NOT_READY = 1,
+    VK_TIMEOUT = 2,
+    VK_EVENT_SET = 3,
+    VK_EVENT_RESET = 4,
+    VK_INCOMPLETE = 5,
+    VK_ERROR_OUT_OF_HOST_MEMORY = -1,
+    VK_ERROR_OUT_OF_DEVICE_MEMORY = -2,
+    VK_ERROR_INITIALIZATION_FAILED = -3,
+    VK_ERROR_DEVICE_LOST = -4,
+    VK_ERROR_MEMORY_MAP_FAILED = -5,
+    VK_ERROR_LAYER_NOT_PRESENT = -6,
+    VK_ERROR_EXTENSION_NOT_PRESENT = -7,
+    VK_ERROR_FEATURE_NOT_PRESENT = -8,
+    VK_ERROR_INCOMPATIBLE_DRIVER = -9,
+    VK_ERROR_TOO_MANY_OBJECTS = -10,
+    VK_ERROR_FORMAT_NOT_SUPPORTED = -11,
+    VK_ERROR_SURFACE_LOST_KHR = -1000000000,
+    VK_SUBOPTIMAL_KHR = 1000001003,
+    VK_ERROR_OUT_OF_DATE_KHR = -1000001004,
+    VK_ERROR_INCOMPATIBLE_DISPLAY_KHR = -1000003001,
+    VK_ERROR_NATIVE_WINDOW_IN_USE_KHR = -1000000001,
+    VK_ERROR_VALIDATION_FAILED_EXT = -1000011001,
+    VK_RESULT_MAX_ENUM = 0x7FFFFFFF
+} VkResult;
+
+typedef struct VkAllocationCallbacks VkAllocationCallbacks;
+
+typedef struct VkExtensionProperties
+{
+    char            extensionName[256];
+    uint32_t        specVersion;
+} VkExtensionProperties;
+
+typedef void (APIENTRY * PFN_vkVoidFunction)(void);
+
+typedef PFN_vkVoidFunction (APIENTRY * PFN_vkGetInstanceProcAddr)(VkInstance,const char*);
+typedef VkResult (APIENTRY * PFN_vkEnumerateInstanceExtensionProperties)(const char*,uint32_t*,VkExtensionProperties*);
+#define vkGetInstanceProcAddr _glfw.vk.GetInstanceProcAddr
+
+#include "platform.h"
+
+#define GLFW_NATIVE_INCLUDE_NONE
+#include "../include/GLFW/glfw3native.h"
+
+// Checks for whether the library has been initialized
+#define _GLFW_REQUIRE_INIT()                         \
+    if (!_glfw.initialized)                          \
+    {                                                \
+        _glfwInputError(GLFW_NOT_INITIALIZED, NULL); \
+        return;                                      \
+    }
+#define _GLFW_REQUIRE_INIT_OR_RETURN(x)              \
+    if (!_glfw.initialized)                          \
+    {                                                \
+        _glfwInputError(GLFW_NOT_INITIALIZED, NULL); \
+        return x;                                    \
+    }
+
+// Swaps the provided pointers
+#define _GLFW_SWAP(type, x, y) \
+    {                          \
+        type t;                \
+        t = x;                 \
+        x = y;                 \
+        y = t;                 \
+    }
+
+// Per-thread error structure
+//
+struct _GLFWerror
+{
+    _GLFWerror*     next;
+    int             code;
+    char            description[_GLFW_MESSAGE_SIZE];
+};
+
+// Initialization configuration
+//
+// Parameters relating to the initialization of the library
+//
+struct _GLFWinitconfig
+{
+    GLFWbool      hatButtons;
+    int           angleType;
+    int           platformID;
+    PFN_vkGetInstanceProcAddr vulkanLoader;
+    struct {
+        GLFWbool  menubar;
+        GLFWbool  chdir;
+    } ns;
+    struct {
+        GLFWbool  xcbVulkanSurface;
+    } x11;
+    struct {
+        int       libdecorMode;
+    } wl;
+};
+
+// Window configuration
+//
+// Parameters relating to the creation of the window but not directly related
+// to the framebuffer.  This is used to pass window creation parameters from
+// shared code to the platform API.
+//
+struct _GLFWwndconfig
+{
+    int           xpos;
+    int           ypos;
+    int           width;
+    int           height;
+    const char*   title;
+    GLFWbool      resizable;
+    GLFWbool      visible;
+    GLFWbool      decorated;
+    GLFWbool      focused;
+    GLFWbool      autoIconify;
+    GLFWbool      floating;
+    GLFWbool      maximized;
+    GLFWbool      centerCursor;
+    GLFWbool      focusOnShow;
+    GLFWbool      mousePassthrough;
+    GLFWbool      scaleToMonitor;
+    GLFWbool      scaleFramebuffer;
+    struct {
+        char      frameName[256];
+    } ns;
+    struct {
+        char      className[256];
+        char      instanceName[256];
+    } x11;
+    struct {
+        GLFWbool  keymenu;
+        GLFWbool  showDefault;
+    } win32;
+    struct {
+        char      appId[256];
+    } wl;
+};
+
+// Context configuration
+//
+// Parameters relating to the creation of the context but not directly related
+// to the framebuffer.  This is used to pass context creation parameters from
+// shared code to the platform API.
+//
+struct _GLFWctxconfig
+{
+    int           client;
+    int           source;
+    int           major;
+    int           minor;
+    GLFWbool      forward;
+    GLFWbool      debug;
+    GLFWbool      noerror;
+    int           profile;
+    int           robustness;
+    int           release;
+    _GLFWwindow*  share;
+    struct {
+        GLFWbool  offline;
+    } nsgl;
+};
+
+// Framebuffer configuration
+//
+// This describes buffers and their sizes.  It also contains
+// a platform-specific ID used to map back to the backend API object.
+//
+// It is used to pass framebuffer parameters from shared code to the platform
+// API and also to enumerate and select available framebuffer configs.
+//
+struct _GLFWfbconfig
+{
+    int         redBits;
+    int         greenBits;
+    int         blueBits;
+    int         alphaBits;
+    int         depthBits;
+    int         stencilBits;
+    int         accumRedBits;
+    int         accumGreenBits;
+    int         accumBlueBits;
+    int         accumAlphaBits;
+    int         auxBuffers;
+    GLFWbool    stereo;
+    int         samples;
+    GLFWbool    sRGB;
+    GLFWbool    doublebuffer;
+    GLFWbool    transparent;
+    uintptr_t   handle;
+};
+
+// Context structure
+//
+struct _GLFWcontext
+{
+    int                 client;
+    int                 source;
+    int                 major, minor, revision;
+    GLFWbool            forward, debug, noerror;
+    int                 profile;
+    int                 robustness;
+    int                 release;
+
+    PFNGLGETSTRINGIPROC  GetStringi;
+    PFNGLGETINTEGERVPROC GetIntegerv;
+    PFNGLGETSTRINGPROC   GetString;
+
+    void (*makeCurrent)(_GLFWwindow*);
+    void (*swapBuffers)(_GLFWwindow*);
+    void (*swapInterval)(int);
+    int (*extensionSupported)(const char*);
+    GLFWglproc (*getProcAddress)(const char*);
+    void (*destroy)(_GLFWwindow*);
+
+    struct {
+        EGLConfig       config;
+        EGLContext      handle;
+        EGLSurface      surface;
+        void*           client;
+    } egl;
+
+    struct {
+        OSMesaContext   handle;
+        int             width;
+        int             height;
+        void*           buffer;
+    } osmesa;
+
+    // This is defined in platform.h
+    GLFW_PLATFORM_CONTEXT_STATE
+};
+
+// Window and context structure
+//
+struct _GLFWwindow
+{
+    struct _GLFWwindow* next;
+
+    // Window settings and state
+    GLFWbool            resizable;
+    GLFWbool            decorated;
+    GLFWbool            autoIconify;
+    GLFWbool            floating;
+    GLFWbool            focusOnShow;
+    GLFWbool            mousePassthrough;
+    GLFWbool            shouldClose;
+    void*               userPointer;
+    GLFWbool            doublebuffer;
+    GLFWvidmode         videoMode;
+    _GLFWmonitor*       monitor;
+    _GLFWcursor*        cursor;
+    char*               title;
+
+    int                 minwidth, minheight;
+    int                 maxwidth, maxheight;
+    int                 numer, denom;
+
+    GLFWbool            stickyKeys;
+    GLFWbool            stickyMouseButtons;
+    GLFWbool            lockKeyMods;
+    GLFWbool            disableMouseButtonLimit;
+    int                 cursorMode;
+    char                mouseButtons[GLFW_MOUSE_BUTTON_LAST + 1];
+    char                keys[GLFW_KEY_LAST + 1];
+    // Virtual cursor position when cursor is disabled
+    double              virtualCursorPosX, virtualCursorPosY;
+    GLFWbool            rawMouseMotion;
+
+    _GLFWcontext        context;
+
+    struct {
+        GLFWwindowposfun          pos;
+        GLFWwindowsizefun         size;
+        GLFWwindowclosefun        close;
+        GLFWwindowrefreshfun      refresh;
+        GLFWwindowfocusfun        focus;
+        GLFWwindowiconifyfun      iconify;
+        GLFWwindowmaximizefun     maximize;
+        GLFWframebuffersizefun    fbsize;
+        GLFWwindowcontentscalefun scale;
+        GLFWmousebuttonfun        mouseButton;
+        GLFWcursorposfun          cursorPos;
+        GLFWcursorenterfun        cursorEnter;
+        GLFWscrollfun             scroll;
+        GLFWkeyfun                key;
+        GLFWcharfun               character;
+        GLFWcharmodsfun           charmods;
+        GLFWdropfun               drop;
+    } callbacks;
+
+    // This is defined in platform.h
+    GLFW_PLATFORM_WINDOW_STATE
+};
+
+// Monitor structure
+//
+struct _GLFWmonitor
+{
+    char            name[128];
+    void*           userPointer;
+
+    // Physical dimensions in millimeters.
+    int             widthMM, heightMM;
+
+    // The window whose video mode is current on this monitor
+    _GLFWwindow*    window;
+
+    GLFWvidmode*    modes;
+    int             modeCount;
+    GLFWvidmode     currentMode;
+
+    GLFWgammaramp   originalRamp;
+    GLFWgammaramp   currentRamp;
+
+    // This is defined in platform.h
+    GLFW_PLATFORM_MONITOR_STATE
+};
+
+// Cursor structure
+//
+struct _GLFWcursor
+{
+    _GLFWcursor*    next;
+    // This is defined in platform.h
+    GLFW_PLATFORM_CURSOR_STATE
+};
+
+// Gamepad mapping element structure
+//
+struct _GLFWmapelement
+{
+    uint8_t         type;
+    uint8_t         index;
+    int8_t          axisScale;
+    int8_t          axisOffset;
+};
+
+// Gamepad mapping structure
+//
+struct _GLFWmapping
+{
+    char            name[128];
+    char            guid[33];
+    _GLFWmapelement buttons[15];
+    _GLFWmapelement axes[6];
+};
+
+// Joystick structure
+//
+struct _GLFWjoystick
+{
+    GLFWbool        allocated;
+    GLFWbool        connected;
+    float*          axes;
+    int             axisCount;
+    unsigned char*  buttons;
+    int             buttonCount;
+    unsigned char*  hats;
+    int             hatCount;
+    char            name[128];
+    void*           userPointer;
+    char            guid[33];
+    _GLFWmapping*   mapping;
+
+    // This is defined in platform.h
+    GLFW_PLATFORM_JOYSTICK_STATE
+};
+
+// Thread local storage structure
+//
+struct _GLFWtls
+{
+    // This is defined in platform.h
+    GLFW_PLATFORM_TLS_STATE
+};
+
+// Mutex structure
+//
+struct _GLFWmutex
+{
+    // This is defined in platform.h
+    GLFW_PLATFORM_MUTEX_STATE
+};
+
+// Platform API structure
+//
+struct _GLFWplatform
+{
+    int platformID;
+    // init
+    GLFWbool (*init)(void);
+    void (*terminate)(void);
+    // input
+    void (*getCursorPos)(_GLFWwindow*,double*,double*);
+    void (*setCursorPos)(_GLFWwindow*,double,double);
+    void (*setCursorMode)(_GLFWwindow*,int);
+    void (*setRawMouseMotion)(_GLFWwindow*,GLFWbool);
+    GLFWbool (*rawMouseMotionSupported)(void);
+    GLFWbool (*createCursor)(_GLFWcursor*,const GLFWimage*,int,int);
+    GLFWbool (*createStandardCursor)(_GLFWcursor*,int);
+    void (*destroyCursor)(_GLFWcursor*);
+    void (*setCursor)(_GLFWwindow*,_GLFWcursor*);
+    const char* (*getScancodeName)(int);
+    int (*getKeyScancode)(int);
+    void (*setClipboardString)(const char*);
+    const char* (*getClipboardString)(void);
+    GLFWbool (*initJoysticks)(void);
+    void (*terminateJoysticks)(void);
+    GLFWbool (*pollJoystick)(_GLFWjoystick*,int);
+    const char* (*getMappingName)(void);
+    void (*updateGamepadGUID)(char*);
+    // monitor
+    void (*freeMonitor)(_GLFWmonitor*);
+    void (*getMonitorPos)(_GLFWmonitor*,int*,int*);
+    void (*getMonitorContentScale)(_GLFWmonitor*,float*,float*);
+    void (*getMonitorWorkarea)(_GLFWmonitor*,int*,int*,int*,int*);
+    GLFWvidmode* (*getVideoModes)(_GLFWmonitor*,int*);
+    GLFWbool (*getVideoMode)(_GLFWmonitor*,GLFWvidmode*);
+    GLFWbool (*getGammaRamp)(_GLFWmonitor*,GLFWgammaramp*);
+    void (*setGammaRamp)(_GLFWmonitor*,const GLFWgammaramp*);
+    // window
+    GLFWbool (*createWindow)(_GLFWwindow*,const _GLFWwndconfig*,const _GLFWctxconfig*,const _GLFWfbconfig*);
+    void (*destroyWindow)(_GLFWwindow*);
+    void (*setWindowTitle)(_GLFWwindow*,const char*);
+    void (*setWindowIcon)(_GLFWwindow*,int,const GLFWimage*);
+    void (*getWindowPos)(_GLFWwindow*,int*,int*);
+    void (*setWindowPos)(_GLFWwindow*,int,int);
+    void (*getWindowSize)(_GLFWwindow*,int*,int*);
+    void (*setWindowSize)(_GLFWwindow*,int,int);
+    void (*setWindowSizeLimits)(_GLFWwindow*,int,int,int,int);
+    void (*setWindowAspectRatio)(_GLFWwindow*,int,int);
+    void (*getFramebufferSize)(_GLFWwindow*,int*,int*);
+    void (*getWindowFrameSize)(_GLFWwindow*,int*,int*,int*,int*);
+    void (*getWindowContentScale)(_GLFWwindow*,float*,float*);
+    void (*iconifyWindow)(_GLFWwindow*);
+    void (*restoreWindow)(_GLFWwindow*);
+    void (*maximizeWindow)(_GLFWwindow*);
+    void (*showWindow)(_GLFWwindow*);
+    void (*hideWindow)(_GLFWwindow*);
+    void (*requestWindowAttention)(_GLFWwindow*);
+    void (*focusWindow)(_GLFWwindow*);
+    void (*setWindowMonitor)(_GLFWwindow*,_GLFWmonitor*,int,int,int,int,int);
+    GLFWbool (*windowFocused)(_GLFWwindow*);
+    GLFWbool (*windowIconified)(_GLFWwindow*);
+    GLFWbool (*windowVisible)(_GLFWwindow*);
+    GLFWbool (*windowMaximized)(_GLFWwindow*);
+    GLFWbool (*windowHovered)(_GLFWwindow*);
+    GLFWbool (*framebufferTransparent)(_GLFWwindow*);
+    float (*getWindowOpacity)(_GLFWwindow*);
+    void (*setWindowResizable)(_GLFWwindow*,GLFWbool);
+    void (*setWindowDecorated)(_GLFWwindow*,GLFWbool);
+    void (*setWindowFloating)(_GLFWwindow*,GLFWbool);
+    void (*setWindowOpacity)(_GLFWwindow*,float);
+    void (*setWindowMousePassthrough)(_GLFWwindow*,GLFWbool);
+    void (*pollEvents)(void);
+    void (*waitEvents)(void);
+    void (*waitEventsTimeout)(double);
+    void (*postEmptyEvent)(void);
+    // EGL
+    EGLenum (*getEGLPlatform)(EGLint**);
+    EGLNativeDisplayType (*getEGLNativeDisplay)(void);
+    EGLNativeWindowType (*getEGLNativeWindow)(_GLFWwindow*);
+    // vulkan
+    void (*getRequiredInstanceExtensions)(char**);
+    GLFWbool (*getPhysicalDevicePresentationSupport)(VkInstance,VkPhysicalDevice,uint32_t);
+    VkResult (*createWindowSurface)(VkInstance,_GLFWwindow*,const VkAllocationCallbacks*,VkSurfaceKHR*);
+};
+
+// Library global data
+//
+struct _GLFWlibrary
+{
+    GLFWbool            initialized;
+    GLFWallocator       allocator;
+
+    _GLFWplatform       platform;
+
+    struct {
+        _GLFWinitconfig init;
+        _GLFWfbconfig   framebuffer;
+        _GLFWwndconfig  window;
+        _GLFWctxconfig  context;
+        int             refreshRate;
+    } hints;
+
+    _GLFWerror*         errorListHead;
+    _GLFWcursor*        cursorListHead;
+    _GLFWwindow*        windowListHead;
+
+    _GLFWmonitor**      monitors;
+    int                 monitorCount;
+
+    GLFWbool            joysticksInitialized;
+    _GLFWjoystick       joysticks[GLFW_JOYSTICK_LAST + 1];
+    _GLFWmapping*       mappings;
+    int                 mappingCount;
+
+    _GLFWtls            errorSlot;
+    _GLFWtls            contextSlot;
+    _GLFWmutex          errorLock;
+
+    struct {
+        uint64_t        offset;
+        // This is defined in platform.h
+        GLFW_PLATFORM_LIBRARY_TIMER_STATE
+    } timer;
+
+    struct {
+        EGLenum         platform;
+        EGLDisplay      display;
+        EGLint          major, minor;
+        GLFWbool        prefix;
+
+        GLFWbool        KHR_create_context;
+        GLFWbool        KHR_create_context_no_error;
+        GLFWbool        KHR_gl_colorspace;
+        GLFWbool        KHR_get_all_proc_addresses;
+        GLFWbool        KHR_context_flush_control;
+        GLFWbool        EXT_client_extensions;
+        GLFWbool        EXT_platform_base;
+        GLFWbool        EXT_platform_x11;
+        GLFWbool        EXT_platform_wayland;
+        GLFWbool        EXT_present_opaque;
+        GLFWbool        ANGLE_platform_angle;
+        GLFWbool        ANGLE_platform_angle_opengl;
+        GLFWbool        ANGLE_platform_angle_d3d;
+        GLFWbool        ANGLE_platform_angle_vulkan;
+        GLFWbool        ANGLE_platform_angle_metal;
+        GLFWbool        MESA_platform_surfaceless;
+
+        void*           handle;
+
+        PFN_eglGetConfigAttrib      GetConfigAttrib;
+        PFN_eglGetConfigs           GetConfigs;
+        PFN_eglGetDisplay           GetDisplay;
+        PFN_eglGetError             GetError;
+        PFN_eglInitialize           Initialize;
+        PFN_eglTerminate            Terminate;
+        PFN_eglBindAPI              BindAPI;
+        PFN_eglCreateContext        CreateContext;
+        PFN_eglDestroySurface       DestroySurface;
+        PFN_eglDestroyContext       DestroyContext;
+        PFN_eglCreateWindowSurface  CreateWindowSurface;
+        PFN_eglCreatePbufferSurface CreatePbufferSurface;
+        PFN_eglMakeCurrent          MakeCurrent;
+        PFN_eglSwapBuffers          SwapBuffers;
+        PFN_eglSwapInterval         SwapInterval;
+        PFN_eglQueryString          QueryString;
+        PFN_eglGetProcAddress       GetProcAddress;
+
+        PFNEGLGETPLATFORMDISPLAYEXTPROC GetPlatformDisplayEXT;
+        PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC CreatePlatformWindowSurfaceEXT;
+    } egl;
+
+    struct {
+        void*           handle;
+
+        PFN_OSMesaCreateContextExt      CreateContextExt;
+        PFN_OSMesaCreateContextAttribs  CreateContextAttribs;
+        PFN_OSMesaDestroyContext        DestroyContext;
+        PFN_OSMesaMakeCurrent           MakeCurrent;
+        PFN_OSMesaGetColorBuffer        GetColorBuffer;
+        PFN_OSMesaGetDepthBuffer        GetDepthBuffer;
+        PFN_OSMesaGetProcAddress        GetProcAddress;
+
+    } osmesa;
+
+    struct {
+        GLFWbool        available;
+        void*           handle;
+        char*           extensions[2];
+        PFN_vkGetInstanceProcAddr GetInstanceProcAddr;
+        GLFWbool        KHR_surface;
+        GLFWbool        KHR_win32_surface;
+        GLFWbool        MVK_macos_surface;
+        GLFWbool        EXT_metal_surface;
+        GLFWbool        KHR_xlib_surface;
+        GLFWbool        KHR_xcb_surface;
+        GLFWbool        KHR_wayland_surface;
+        GLFWbool        EXT_headless_surface;
+    } vk;
+
+    struct {
+        GLFWmonitorfun  monitor;
+        GLFWjoystickfun joystick;
+    } callbacks;
+
+    // These are defined in platform.h
+    GLFW_PLATFORM_LIBRARY_WINDOW_STATE
+    GLFW_PLATFORM_LIBRARY_CONTEXT_STATE
+    GLFW_PLATFORM_LIBRARY_JOYSTICK_STATE
+};
+
+// Global state shared between compilation units of GLFW
+//
+extern _GLFWlibrary _glfw;
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwPlatformInitTimer(void);
+uint64_t _glfwPlatformGetTimerValue(void);
+uint64_t _glfwPlatformGetTimerFrequency(void);
+
+GLFWbool _glfwPlatformCreateTls(_GLFWtls* tls);
+void _glfwPlatformDestroyTls(_GLFWtls* tls);
+void* _glfwPlatformGetTls(_GLFWtls* tls);
+void _glfwPlatformSetTls(_GLFWtls* tls, void* value);
+
+GLFWbool _glfwPlatformCreateMutex(_GLFWmutex* mutex);
+void _glfwPlatformDestroyMutex(_GLFWmutex* mutex);
+void _glfwPlatformLockMutex(_GLFWmutex* mutex);
+void _glfwPlatformUnlockMutex(_GLFWmutex* mutex);
+
+void* _glfwPlatformLoadModule(const char* path);
+void _glfwPlatformFreeModule(void* module);
+GLFWproc _glfwPlatformGetModuleSymbol(void* module, const char* name);
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                         GLFW event API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwInputWindowFocus(_GLFWwindow* window, GLFWbool focused);
+void _glfwInputWindowPos(_GLFWwindow* window, int xpos, int ypos);
+void _glfwInputWindowSize(_GLFWwindow* window, int width, int height);
+void _glfwInputFramebufferSize(_GLFWwindow* window, int width, int height);
+void _glfwInputWindowContentScale(_GLFWwindow* window,
+                                  float xscale, float yscale);
+void _glfwInputWindowIconify(_GLFWwindow* window, GLFWbool iconified);
+void _glfwInputWindowMaximize(_GLFWwindow* window, GLFWbool maximized);
+void _glfwInputWindowDamage(_GLFWwindow* window);
+void _glfwInputWindowCloseRequest(_GLFWwindow* window);
+void _glfwInputWindowMonitor(_GLFWwindow* window, _GLFWmonitor* monitor);
+
+void _glfwInputKey(_GLFWwindow* window,
+                   int key, int scancode, int action, int mods);
+void _glfwInputChar(_GLFWwindow* window,
+                    uint32_t codepoint, int mods, GLFWbool plain);
+void _glfwInputScroll(_GLFWwindow* window, double xoffset, double yoffset);
+void _glfwInputMouseClick(_GLFWwindow* window, int button, int action, int mods);
+void _glfwInputCursorPos(_GLFWwindow* window, double xpos, double ypos);
+void _glfwInputCursorEnter(_GLFWwindow* window, GLFWbool entered);
+void _glfwInputDrop(_GLFWwindow* window, int count, const char** names);
+void _glfwInputJoystick(_GLFWjoystick* js, int event);
+void _glfwInputJoystickAxis(_GLFWjoystick* js, int axis, float value);
+void _glfwInputJoystickButton(_GLFWjoystick* js, int button, char value);
+void _glfwInputJoystickHat(_GLFWjoystick* js, int hat, char value);
+
+void _glfwInputMonitor(_GLFWmonitor* monitor, int action, int placement);
+void _glfwInputMonitorWindow(_GLFWmonitor* monitor, _GLFWwindow* window);
+
+#if defined(__GNUC__)
+void _glfwInputError(int code, const char* format, ...)
+    __attribute__((format(printf, 2, 3)));
+#else
+void _glfwInputError(int code, const char* format, ...);
+#endif
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwSelectPlatform(int platformID, _GLFWplatform* platform);
+
+GLFWbool _glfwStringInExtensionString(const char* string, const char* extensions);
+const _GLFWfbconfig* _glfwChooseFBConfig(const _GLFWfbconfig* desired,
+                                         const _GLFWfbconfig* alternatives,
+                                         unsigned int count);
+GLFWbool _glfwRefreshContextAttribs(_GLFWwindow* window,
+                                    const _GLFWctxconfig* ctxconfig);
+GLFWbool _glfwIsValidContextConfig(const _GLFWctxconfig* ctxconfig);
+
+const GLFWvidmode* _glfwChooseVideoMode(_GLFWmonitor* monitor,
+                                        const GLFWvidmode* desired);
+int _glfwCompareVideoModes(const GLFWvidmode* first, const GLFWvidmode* second);
+_GLFWmonitor* _glfwAllocMonitor(const char* name, int widthMM, int heightMM);
+void _glfwFreeMonitor(_GLFWmonitor* monitor);
+void _glfwAllocGammaArrays(GLFWgammaramp* ramp, unsigned int size);
+void _glfwFreeGammaArrays(GLFWgammaramp* ramp);
+void _glfwSplitBPP(int bpp, int* red, int* green, int* blue);
+
+void _glfwInitGamepadMappings(void);
+_GLFWjoystick* _glfwAllocJoystick(const char* name,
+                                  const char* guid,
+                                  int axisCount,
+                                  int buttonCount,
+                                  int hatCount);
+void _glfwFreeJoystick(_GLFWjoystick* js);
+void _glfwCenterCursorInContentArea(_GLFWwindow* window);
+
+GLFWbool _glfwInitEGL(void);
+void _glfwTerminateEGL(void);
+GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
+                               const _GLFWctxconfig* ctxconfig,
+                               const _GLFWfbconfig* fbconfig);
+#if defined(_GLFW_X11)
+GLFWbool _glfwChooseVisualEGL(const _GLFWwndconfig* wndconfig,
+                              const _GLFWctxconfig* ctxconfig,
+                              const _GLFWfbconfig* fbconfig,
+                              Visual** visual, int* depth);
+#endif /*_GLFW_X11*/
+
+GLFWbool _glfwInitOSMesa(void);
+void _glfwTerminateOSMesa(void);
+GLFWbool _glfwCreateContextOSMesa(_GLFWwindow* window,
+                                  const _GLFWctxconfig* ctxconfig,
+                                  const _GLFWfbconfig* fbconfig);
+
+GLFWbool _glfwInitVulkan(int mode);
+void _glfwTerminateVulkan(void);
+const char* _glfwGetVulkanResultString(VkResult result);
+
+size_t _glfwEncodeUTF8(char* s, uint32_t codepoint);
+char** _glfwParseUriList(char* text, int* count);
+
+char* _glfw_strdup(const char* source);
+int _glfw_min(int a, int b);
+int _glfw_max(int a, int b);
+
+void* _glfw_calloc(size_t count, size_t size);
+void* _glfw_realloc(void* pointer, size_t size);
+void _glfw_free(void* pointer);
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/linux_joystick.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/linux_joystick.c
new file mode 100644
index 000000000000..d8a916b08b2c
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/linux_joystick.c
@@ -0,0 +1,436 @@
+//========================================================================
+// GLFW 3.5 Linux - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_LINUX_JOYSTICK)
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/inotify.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <dirent.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#ifndef SYN_DROPPED // < v2.6.39 kernel headers
+// Workaround for CentOS-6, which is supported till 2020-11-30, but still on v2.6.32
+#define SYN_DROPPED 3
+#endif
+
+// Apply an EV_KEY event to the specified joystick
+//
+static void handleKeyEvent(_GLFWjoystick* js, int code, int value)
+{
+    _glfwInputJoystickButton(js,
+                             js->linjs.keyMap[code - BTN_MISC],
+                             value ? GLFW_PRESS : GLFW_RELEASE);
+}
+
+// Apply an EV_ABS event to the specified joystick
+//
+static void handleAbsEvent(_GLFWjoystick* js, int code, int value)
+{
+    const int index = js->linjs.absMap[code];
+
+    if (code >= ABS_HAT0X && code <= ABS_HAT3Y)
+    {
+        static const char stateMap[3][3] =
+        {
+            { GLFW_HAT_CENTERED, GLFW_HAT_UP,       GLFW_HAT_DOWN },
+            { GLFW_HAT_LEFT,     GLFW_HAT_LEFT_UP,  GLFW_HAT_LEFT_DOWN },
+            { GLFW_HAT_RIGHT,    GLFW_HAT_RIGHT_UP, GLFW_HAT_RIGHT_DOWN },
+        };
+
+        const int hat = (code - ABS_HAT0X) / 2;
+        const int axis = (code - ABS_HAT0X) % 2;
+        int* state = js->linjs.hats[hat];
+
+        // NOTE: Looking at several input drivers, it seems all hat events use
+        //       -1 for left / up, 0 for centered and 1 for right / down
+        if (value == 0)
+            state[axis] = 0;
+        else if (value < 0)
+            state[axis] = 1;
+        else if (value > 0)
+            state[axis] = 2;
+
+        _glfwInputJoystickHat(js, index, stateMap[state[0]][state[1]]);
+    }
+    else
+    {
+        const struct input_absinfo* info = &js->linjs.absInfo[code];
+        float normalized = value;
+
+        const int range = info->maximum - info->minimum;
+        if (range)
+        {
+            // Normalize to 0.0 -> 1.0
+            normalized = (normalized - info->minimum) / range;
+            // Normalize to -1.0 -> 1.0
+            normalized = normalized * 2.0f - 1.0f;
+        }
+
+        _glfwInputJoystickAxis(js, index, normalized);
+    }
+}
+
+// Poll state of absolute axes
+//
+static void pollAbsState(_GLFWjoystick* js)
+{
+    for (int code = 0;  code < ABS_CNT;  code++)
+    {
+        if (js->linjs.absMap[code] < 0)
+            continue;
+
+        struct input_absinfo* info = &js->linjs.absInfo[code];
+
+        if (ioctl(js->linjs.fd, EVIOCGABS(code), info) < 0)
+            continue;
+
+        handleAbsEvent(js, code, info->value);
+    }
+}
+
+#define isBitSet(bit, arr) (arr[(bit) / 8] & (1 << ((bit) % 8)))
+
+// Attempt to open the specified joystick device
+//
+static GLFWbool openJoystickDevice(const char* path)
+{
+    for (int jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        if (!_glfw.joysticks[jid].connected)
+            continue;
+        if (strcmp(_glfw.joysticks[jid].linjs.path, path) == 0)
+            return GLFW_FALSE;
+    }
+
+    _GLFWjoystickLinux linjs = {0};
+    linjs.fd = open(path, O_RDONLY | O_NONBLOCK | O_CLOEXEC);
+    if (linjs.fd == -1)
+        return GLFW_FALSE;
+
+    char evBits[(EV_CNT + 7) / 8] = {0};
+    char keyBits[(KEY_CNT + 7) / 8] = {0};
+    char absBits[(ABS_CNT + 7) / 8] = {0};
+    struct input_id id;
+
+    if (ioctl(linjs.fd, EVIOCGBIT(0, sizeof(evBits)), evBits) < 0 ||
+        ioctl(linjs.fd, EVIOCGBIT(EV_KEY, sizeof(keyBits)), keyBits) < 0 ||
+        ioctl(linjs.fd, EVIOCGBIT(EV_ABS, sizeof(absBits)), absBits) < 0 ||
+        ioctl(linjs.fd, EVIOCGID, &id) < 0)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Linux: Failed to query input device: %s",
+                        strerror(errno));
+        close(linjs.fd);
+        return GLFW_FALSE;
+    }
+
+    // Ensure this device supports the events expected of a joystick
+    if (!isBitSet(EV_ABS, evBits))
+    {
+        close(linjs.fd);
+        return GLFW_FALSE;
+    }
+
+    char name[256] = "";
+
+    if (ioctl(linjs.fd, EVIOCGNAME(sizeof(name)), name) < 0)
+        strncpy(name, "Unknown", sizeof(name));
+
+    char guid[33] = "";
+
+    // Generate a joystick GUID that matches the SDL 2.0.5+ one
+    if (id.vendor && id.product && id.version)
+    {
+        sprintf(guid, "%02x%02x0000%02x%02x0000%02x%02x0000%02x%02x0000",
+                id.bustype & 0xff, id.bustype >> 8,
+                id.vendor & 0xff,  id.vendor >> 8,
+                id.product & 0xff, id.product >> 8,
+                id.version & 0xff, id.version >> 8);
+    }
+    else
+    {
+        sprintf(guid, "%02x%02x0000%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x00",
+                id.bustype & 0xff, id.bustype >> 8,
+                name[0], name[1], name[2], name[3],
+                name[4], name[5], name[6], name[7],
+                name[8], name[9], name[10]);
+    }
+
+    int axisCount = 0, buttonCount = 0, hatCount = 0;
+
+    for (int code = BTN_MISC;  code < KEY_CNT;  code++)
+    {
+        if (!isBitSet(code, keyBits))
+            continue;
+
+        linjs.keyMap[code - BTN_MISC] = buttonCount;
+        buttonCount++;
+    }
+
+    for (int code = 0;  code < ABS_CNT;  code++)
+    {
+        linjs.absMap[code] = -1;
+        if (!isBitSet(code, absBits))
+            continue;
+
+        if (code >= ABS_HAT0X && code <= ABS_HAT3Y)
+        {
+            linjs.absMap[code] = hatCount;
+            hatCount++;
+            // Skip the Y axis
+            code++;
+        }
+        else
+        {
+            if (ioctl(linjs.fd, EVIOCGABS(code), &linjs.absInfo[code]) < 0)
+                continue;
+
+            linjs.absMap[code] = axisCount;
+            axisCount++;
+        }
+    }
+
+    _GLFWjoystick* js =
+        _glfwAllocJoystick(name, guid, axisCount, buttonCount, hatCount);
+    if (!js)
+    {
+        close(linjs.fd);
+        return GLFW_FALSE;
+    }
+
+    strncpy(linjs.path, path, sizeof(linjs.path) - 1);
+    memcpy(&js->linjs, &linjs, sizeof(linjs));
+
+    pollAbsState(js);
+
+    _glfwInputJoystick(js, GLFW_CONNECTED);
+    return GLFW_TRUE;
+}
+
+#undef isBitSet
+
+// Frees all resources associated with the specified joystick
+//
+static void closeJoystick(_GLFWjoystick* js)
+{
+    _glfwInputJoystick(js, GLFW_DISCONNECTED);
+    close(js->linjs.fd);
+    _glfwFreeJoystick(js);
+}
+
+// Lexically compare joysticks by name; used by qsort
+//
+static int compareJoysticks(const void* fp, const void* sp)
+{
+    const _GLFWjoystick* fj = fp;
+    const _GLFWjoystick* sj = sp;
+    return strcmp(fj->linjs.path, sj->linjs.path);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwDetectJoystickConnectionLinux(void)
+{
+    if (_glfw.linjs.inotify <= 0)
+        return;
+
+    ssize_t offset = 0;
+    char buffer[16384];
+    const ssize_t size = read(_glfw.linjs.inotify, buffer, sizeof(buffer));
+
+    while (size > offset)
+    {
+        regmatch_t match;
+        const struct inotify_event* e = (struct inotify_event*) (buffer + offset);
+
+        offset += sizeof(struct inotify_event) + e->len;
+
+        if (regexec(&_glfw.linjs.regex, e->name, 1, &match, 0) != 0)
+            continue;
+
+        char path[PATH_MAX];
+        snprintf(path, sizeof(path), "/dev/input/%s", e->name);
+
+        if (e->mask & (IN_CREATE | IN_ATTRIB))
+            openJoystickDevice(path);
+        else if (e->mask & IN_DELETE)
+        {
+            for (int jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+            {
+                if (strcmp(_glfw.joysticks[jid].linjs.path, path) == 0)
+                {
+                    closeJoystick(_glfw.joysticks + jid);
+                    break;
+                }
+            }
+        }
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwInitJoysticksLinux(void)
+{
+    const char* dirname = "/dev/input";
+
+    _glfw.linjs.inotify = inotify_init1(IN_NONBLOCK | IN_CLOEXEC);
+    if (_glfw.linjs.inotify > 0)
+    {
+        // HACK: Register for IN_ATTRIB to get notified when udev is done
+        //       This works well in practice but the true way is libudev
+
+        _glfw.linjs.watch = inotify_add_watch(_glfw.linjs.inotify,
+                                              dirname,
+                                              IN_CREATE | IN_ATTRIB | IN_DELETE);
+    }
+
+    // Continue without device connection notifications if inotify fails
+
+    _glfw.linjs.regexCompiled = (regcomp(&_glfw.linjs.regex, "^event[0-9]\\+$", 0) == 0);
+    if (!_glfw.linjs.regexCompiled)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Linux: Failed to compile regex");
+        return GLFW_FALSE;
+    }
+
+    int count = 0;
+
+    DIR* dir = opendir(dirname);
+    if (dir)
+    {
+        struct dirent* entry;
+
+        while ((entry = readdir(dir)))
+        {
+            regmatch_t match;
+
+            if (regexec(&_glfw.linjs.regex, entry->d_name, 1, &match, 0) != 0)
+                continue;
+
+            char path[PATH_MAX];
+
+            snprintf(path, sizeof(path), "%s/%s", dirname, entry->d_name);
+
+            if (openJoystickDevice(path))
+                count++;
+        }
+
+        closedir(dir);
+    }
+
+    // Continue with no joysticks if enumeration fails
+
+    qsort(_glfw.joysticks, count, sizeof(_GLFWjoystick), compareJoysticks);
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateJoysticksLinux(void)
+{
+    for (int jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        _GLFWjoystick* js = _glfw.joysticks + jid;
+        if (js->connected)
+            closeJoystick(js);
+    }
+
+    if (_glfw.linjs.inotify > 0)
+    {
+        if (_glfw.linjs.watch > 0)
+            inotify_rm_watch(_glfw.linjs.inotify, _glfw.linjs.watch);
+
+        close(_glfw.linjs.inotify);
+    }
+
+    if (_glfw.linjs.regexCompiled)
+        regfree(&_glfw.linjs.regex);
+}
+
+GLFWbool _glfwPollJoystickLinux(_GLFWjoystick* js, int mode)
+{
+    // Read all queued events (non-blocking)
+    for (;;)
+    {
+        struct input_event e;
+
+        errno = 0;
+        if (read(js->linjs.fd, &e, sizeof(e)) < 0)
+        {
+            // Reset the joystick slot if the device was disconnected
+            if (errno == ENODEV)
+                closeJoystick(js);
+
+            break;
+        }
+
+        if (e.type == EV_SYN)
+        {
+            if (e.code == SYN_DROPPED)
+                _glfw.linjs.dropped = GLFW_TRUE;
+            else if (e.code == SYN_REPORT)
+            {
+                _glfw.linjs.dropped = GLFW_FALSE;
+                pollAbsState(js);
+            }
+        }
+
+        if (_glfw.linjs.dropped)
+            continue;
+
+        if (e.type == EV_KEY)
+            handleKeyEvent(js, e.code, e.value);
+        else if (e.type == EV_ABS)
+            handleAbsEvent(js, e.code, e.value);
+    }
+
+    return js->connected;
+}
+
+const char* _glfwGetMappingNameLinux(void)
+{
+    return "Linux";
+}
+
+void _glfwUpdateGamepadGUIDLinux(char* guid)
+{
+}
+
+#endif // GLFW_BUILD_LINUX_JOYSTICK
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/linux_joystick.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/linux_joystick.h
new file mode 100644
index 000000000000..1ea3deb3da22
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/linux_joystick.h
@@ -0,0 +1,64 @@
+//========================================================================
+// GLFW 3.5 Linux - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <linux/input.h>
+#include <linux/limits.h>
+#include <regex.h>
+
+#define GLFW_LINUX_JOYSTICK_STATE         _GLFWjoystickLinux linjs;
+#define GLFW_LINUX_LIBRARY_JOYSTICK_STATE _GLFWlibraryLinux  linjs;
+
+// Linux-specific joystick data
+//
+typedef struct _GLFWjoystickLinux
+{
+    int                     fd;
+    char                    path[PATH_MAX];
+    int                     keyMap[KEY_CNT - BTN_MISC];
+    int                     absMap[ABS_CNT];
+    struct input_absinfo    absInfo[ABS_CNT];
+    int                     hats[4][2];
+} _GLFWjoystickLinux;
+
+// Linux-specific joystick API data
+//
+typedef struct _GLFWlibraryLinux
+{
+    int                     inotify;
+    int                     watch;
+    regex_t                 regex;
+    GLFWbool                regexCompiled;
+    GLFWbool                dropped;
+} _GLFWlibraryLinux;
+
+void _glfwDetectJoystickConnectionLinux(void);
+
+GLFWbool _glfwInitJoysticksLinux(void);
+void _glfwTerminateJoysticksLinux(void);
+GLFWbool _glfwPollJoystickLinux(_GLFWjoystick* js, int mode);
+const char* _glfwGetMappingNameLinux(void);
+void _glfwUpdateGamepadGUIDLinux(char* guid);
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/mappings.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/mappings.h
new file mode 100644
index 000000000000..cd32e5d05b06
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/mappings.h
@@ -0,0 +1,1001 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+// As mappings.h.in, this file is used by CMake to produce the mappings.h
+// header file.  If you are adding a GLFW specific gamepad mapping, this is
+// where to put it.
+//========================================================================
+// As mappings.h, this provides all pre-defined gamepad mappings, including
+// all available in SDL_GameControllerDB.  Do not edit this file.  Any gamepad
+// mappings not specific to GLFW should be submitted to SDL_GameControllerDB.
+// This file can be re-generated from mappings.h.in and the upstream
+// gamecontrollerdb.txt with the 'update_mappings' CMake target.
+//========================================================================
+
+// All gamepad mappings not labeled GLFW are copied from the
+// SDL_GameControllerDB project under the following license:
+//
+// Simple DirectMedia Layer
+// Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
+//
+// This software is provided 'as-is', without any express or implied warranty.
+// In no event will the authors be held liable for any damages arising from the
+// use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not be
+//    misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source distribution.
+
+const char* _glfwDefaultMappings[] =
+{
+#if defined(_GLFW_WIN32)
+"03000000fa2d00000100000000000000,3DRUDDER,leftx:a0,lefty:a1,rightx:a5,righty:a2,platform:Windows,",
+"03000000c82d00002038000000000000,8bitdo,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000951000000000000,8BitDo Dogbone Modkit,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,start:b11,platform:Windows,",
+"03000000c82d000011ab000000000000,8BitDo F30,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00001038000000000000,8BitDo F30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a5,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000090000000000000,8BitDo FC30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000650000000000000,8BitDo M30,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:a4,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:b7,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000c82d00005106000000000000,8BitDo M30 Gamepad,a:b1,b:b0,back:b10,guide:b2,leftshoulder:b6,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b9,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000151000000000000,8BitDo M30 ModKit,a:b0,b:b1,back:b10,dpdown:+a2,dpleft:-a0,dpright:+a0,dpup:-a2,rightshoulder:b6,righttrigger:b7,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000c82d00000310000000000000,8BitDo N30,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000c82d00002028000000000000,8BitDo N30,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a5,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00008010000000000000,8BitDo N30,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000c82d00000451000000000000,8BitDo N30 Modkit,a:b1,b:b0,back:b10,dpdown:+a2,dpleft:-a0,dpright:+a0,dpup:-a2,start:b11,platform:Windows,",
+"03000000c82d00000190000000000000,8BitDo N30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00001590000000000000,8BitDo N30 Pro 2,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a5,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00006528000000000000,8BitDo N30 Pro 2,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000022000000090000000000000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000203800000900000000000000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000360000000000000,8BitDo Pro 2,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00002867000000000000,8BitDo S30 Modkit,a:b0,b:b1,dpdown:+a2,dpleft:-a0,dpright:+a0,dpup:-a2,leftshoulder:b8,lefttrigger:b9,rightshoulder:b6,righttrigger:b7,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000c82d00000130000000000000,8BitDo SF30,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a5,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000060000000000000,8Bitdo SF30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000061000000000000,8Bitdo SF30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d000021ab000000000000,8BitDo SFC30,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000102800000900000000000000,8Bitdo SFC30 GamePad,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00003028000000000000,8Bitdo SFC30 GamePad,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000030000000000000,8BitDo SN30,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00001290000000000000,8BitDo SN30,a:b1,b:b0,back:b10,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d000020ab000000000000,8BitDo SN30,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a5,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00004028000000000000,8BitDo SN30,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a5,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00006228000000000000,8BitDo SN30,a:b1,b:b0,back:b10,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000351000000000000,8BitDo SN30 Modkit,a:b1,b:b0,back:b10,dpdown:+a2,dpleft:-a0,dpright:+a0,dpup:-a2,leftshoulder:b6,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000160000000000000,8BitDo SN30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000161000000000000,8BitDo SN30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000121000000000000,8BitDo SN30 Pro for Android,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000c82d00000260000000000000,8BitDo SN30 Pro+,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000261000000000000,8BitDo SN30 Pro+,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00000031000000000000,8BitDo Wireless Adapter,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000c82d00001890000000000000,8BitDo Zero 2,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000c82d00003032000000000000,8BitDo Zero 2,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Windows,",
+"03000000a00500003232000000000000,8Bitdo Zero GamePad,a:b0,b:b1,back:b10,dpdown:+a2,dpleft:-a0,dpright:+a0,dpup:-a2,leftshoulder:b6,rightshoulder:b7,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000a30c00002700000000000000,Astro City Mini,a:b2,b:b1,back:b8,leftx:a3,lefty:a4,rightshoulder:b4,righttrigger:b5,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000a30c00002800000000000000,Astro City Mini,a:b2,b:b1,back:b8,leftx:a3,lefty:a4,rightshoulder:b4,righttrigger:b5,start:b9,x:b3,y:b0,platform:Windows,",
+"030000008f0e00001200000000000000,Acme GA-02,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000c01100000355000011010000,ACRUX USB GAME PAD,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000fa190000f0ff000000000000,Acteck AGJ-3200,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"030000006f0e00001413000000000000,Afterglow,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000341a00003608000000000000,Afterglow PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00000263000000000000,Afterglow PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00001101000000000000,Afterglow PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00001401000000000000,Afterglow PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00001402000000000000,Afterglow PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00001901000000000000,Afterglow PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00001a01000000000000,Afterglow PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000d62000001d57000000000000,Airflo PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000491900001904000000000000,Amazon Luna Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,misc1:b9,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b7,x:b2,y:b3,platform:Windows,",
+"03000000710100001904000000000000,Amazon Luna Controller,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b11,leftshoulder:b5,leftstick:b8,leftx:a0,lefty:a1,misc1:b9,rightshoulder:b4,rightstick:b7,rightx:a3,righty:a4,start:b6,x:b3,y:b2,platform:Windows,",
+"03000000ef0500000300000000000000,AxisPad,a:b2,b:b3,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a3,righty:a2,start:b11,x:b0,y:b1,platform:Windows,",
+"03000000d6200000e557000000000000,Batarang,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000c01100001352000000000000,Battalife Joystick,a:b6,b:b7,back:b2,leftshoulder:b0,leftx:a0,lefty:a1,rightshoulder:b1,start:b3,x:b4,y:b5,platform:Windows,",
+"030000006f0e00003201000000000000,Battlefield 4 PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000d62000002a79000000000000,BDA PS4 Fightpad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000bc2000006012000000000000,Betop 2126F,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000bc2000000055000000000000,Betop BFM Gamepad,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000bc2000006312000000000000,Betop Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000bc2000006321000000000000,BETOP CONTROLLER,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000bc2000006412000000000000,Betop Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000c01100000555000000000000,Betop Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000c01100000655000000000000,Betop Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000790000000700000000000000,Betop Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a4,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000808300000300000000000000,Betop Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a4,start:b9,x:b3,y:b0,platform:Windows,",
+"030000006b1400000055000000000000,Bigben PS3 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"030000006b1400000103000000000000,Bigben PS3 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b2,platform:Windows,",
+"03000000120c0000210e000000000000,Brook Mars,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"0300000066f700000500000000000000,BrutalLegendTest,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000d81d00000b00000000000000,BUFFALO BSGP1601 Series ,a:b5,b:b3,back:b12,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b8,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b9,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b13,x:b4,y:b2,platform:Windows,",
+"03000000e82000006058000000000000,Cideko AK08b,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000457500000401000000000000,Cobra,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000005e0400008e02000000000000,Controller (XBOX 360 For Windows),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:+a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:-a2,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,",
+"030000005e040000a102000000000000,Controller (Xbox 360 Wireless Receiver for Windows),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:+a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:-a2,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,",
+"030000005e040000ff02000000000000,Controller (Xbox One For Windows) - Wired,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:+a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:-a2,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,",
+"030000005e040000ea02000000000000,Controller (Xbox One For Windows) - Wireless,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:+a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:-a2,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,",
+"03000000260900008888000000000000,Cyber Gadget GameCube Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:a4,rightx:a2,righty:a3~,start:b7,x:b2,y:b3,platform:Windows,",
+"03000000a306000022f6000000000000,Cyborg V.3 Rumble Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:+a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:-a3,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000451300000830000000000000,Defender Game Racer X7,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"030000007d0400000840000000000000,Destroyer Tiltpad,+leftx:h0.2,+lefty:h0.4,-leftx:h0.8,-lefty:h0.1,a:b1,b:b2,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,x:b0,y:b3,platform:Windows,",
+"03000000791d00000103000000000000,Dual Box WII,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000bd12000002e0000000000000,Dual USB Vibration Joystick,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b9,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b10,righttrigger:b5,rightx:a3,righty:a2,start:b11,x:b3,y:b0,platform:Windows,",
+"030000008f0e00000910000000000000,DualShock 2,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b9,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b10,righttrigger:b5,rightx:a3,righty:a2,start:b11,x:b3,y:b0,platform:Windows,",
+"030000006f0e00003001000000000000,EA SPORTS PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000b80500000410000000000000,Elecom Gamepad,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b1,platform:Windows,",
+"03000000b80500000610000000000000,Elecom Gamepad,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b1,platform:Windows,",
+"03000000120c0000f61c000000000000,Elite,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000008f0e00000f31000000000000,EXEQ,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b2,platform:Windows,",
+"03000000341a00000108000000000000,EXEQ RF USB Gamepad 8206,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"030000006f0e00008401000000000000,Faceoff Deluxe+ Audio Wired Controller for Nintendo Switch,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00008001000000000000,Faceoff Wired Pro Controller for Nintendo Switch,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000852100000201000000000000,FF-GP1,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00008500000000000000,Fighting Commander 2016 PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00008400000000000000,Fighting Commander 5,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00008700000000000000,Fighting Stick mini 4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00008800000000000000,Fighting Stick mini 4,a:b1,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b8,x:b0,y:b3,platform:Windows,",
+"030000000d0f00002700000000000000,FIGHTING STICK V3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"78696e70757403000000000000000000,Fightstick TES,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,lefttrigger:a2,rightshoulder:b5,righttrigger:a5,start:b7,x:b2,y:b3,platform:Windows,",
+"03000000790000002201000000000000,Game Controller for PC,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"0300000066f700000100000000000000,Game VIB Joystick,a:b2,b:b3,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a3,righty:a2,start:b11,x:b0,y:b1,platform:Windows,",
+"03000000260900002625000000000000,Gamecube Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b6,lefttrigger:a4,leftx:a0,lefty:a1,righttrigger:a5,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Windows,",
+"03000000790000004618000000000000,GameCube Controller Adapter,a:b1,b:b2,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,rightx:a5,righty:a2,start:b9,x:b0,y:b3,platform:Windows,",
+"030000008f0e00000d31000000000000,GAMEPAD 3 TURBO,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000280400000140000000000000,GamePad Pro USB,a:b1,b:b2,back:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000ac0500003d03000000000000,GameSir,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000ac0500004d04000000000000,GameSir,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000ffff00000000000000000000,GameStop Gamepad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000c01100000140000000000000,GameStop PS4 Fun Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000009b2800003200000000000000,GC/N64 to USB v3.4,a:b0,b:b7,dpdown:b11,dpleft:b12,dpright:b13,dpup:b10,lefttrigger:+a5,leftx:a0,lefty:a1,rightshoulder:b2,righttrigger:+a2,rightx:a3,righty:a4,start:b3,x:b1,y:b8,platform:Windows,",
+"030000009b2800006000000000000000,GC/N64 to USB v3.6,a:b0,b:b7,dpdown:b11,dpleft:b12,dpright:b13,dpup:b10,lefttrigger:+a5,leftx:a0,lefty:a1,rightshoulder:b2,righttrigger:+a2,rightx:a3,righty:a4,start:b3,x:b1,y:b8,platform:Windows,",
+"030000008305000009a0000000000000,Genius,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"030000008305000031b0000000000000,Genius Maxfire Blaze 3,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000451300000010000000000000,Genius Maxfire Grandias 12,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"030000005c1a00003330000000000000,Genius MaxFire Grandias 12V,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b7,leftx:a0,lefty:a1,rightshoulder:b4,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000300f00000b01000000000000,GGE909 Recoil Pad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000f0250000c283000000000000,Gioteck,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000f025000021c1000000000000,Gioteck PS3 Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000f0250000c383000000000000,Gioteck VX2 Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000f0250000c483000000000000,Gioteck VX2 Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"030000007d0400000540000000000000,Gravis Eliminator GamePad Pro,a:b1,b:b2,back:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000341a00000302000000000000,Hama Scorpad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00004900000000000000,Hatsune Miku Sho Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000001008000001e1000000000000,Havit HV-G60,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000d81400000862000000000000,HitBox Edition Cthulhu+,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b5,lefttrigger:b4,rightshoulder:b7,righttrigger:b6,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000632500002605000000000000,HJD-X,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"030000000d0f00002d00000000000000,Hori Fighting Commander 3 Pro,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00005f00000000000000,Hori Fighting Commander 4 (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00005e00000000000000,Hori Fighting Commander 4 (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00004000000000000000,Hori Fighting Stick Mini 3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b5,lefttrigger:b4,rightshoulder:b7,righttrigger:b6,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00005400000000000000,Hori Pad 3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00000900000000000000,Hori Pad 3 Turbo,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00004d00000000000000,Hori Pad A,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00009200000000000000,Hori Pokken Tournament DX Pro Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00001600000000007803,HORI Real Arcade Pro EX-SE (Xbox 360),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,lefttrigger:a2,rightshoulder:b5,righttrigger:a5,start:b7,x:b2,y:b3,platform:Windows,",
+"030000000d0f00009c00000000000000,Hori TAC Pro,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f0000c100000000000000,Horipad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00006e00000000000000,HORIPAD 4 (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00006600000000000000,HORIPAD 4 (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00005500000000000000,Horipad 4 FPS,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f0000ee00000000000000,HORIPAD mini4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000250900000017000000000000,HRAP2 on PS/SS/N64 Joypad to USB BOX,a:b2,b:b1,back:b9,leftshoulder:b5,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b6,start:b8,x:b3,y:b0,platform:Windows,",
+"030000008f0e00001330000000000000,HuiJia SNES Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000d81d00000f00000000000000,iBUFFALO BSGP1204 Series,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000d81d00001000000000000000,iBUFFALO BSGP1204P Series,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000830500006020000000000000,iBuffalo SNES Controller,a:b1,b:b0,back:b6,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b7,x:b3,y:b2,platform:Windows,",
+"03000000b50700001403000000000000,Impact Black,a:b2,b:b3,back:b8,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Windows,",
+"030000006f0e00002401000000000000,INJUSTICE FightStick PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000ac0500002c02000000000000,IPEGA,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b8,leftstick:b13,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b9,rightstick:b14,righttrigger:b7,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000491900000204000000000000,Ipega PG-9023,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000491900000304000000000000,Ipega PG-9087 - Bluetooth Gamepad,+righty:+a5,-righty:-a4,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,start:b11,x:b3,y:b4,platform:Windows,",
+"030000006e0500000a20000000000000,JC-DUX60 ELECOM MMO Gamepad,a:b2,b:b3,back:b17,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b8,leftstick:b14,lefttrigger:b12,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b15,righttrigger:b13,rightx:a3,righty:a4,start:b20,x:b0,y:b1,platform:Windows,",
+"030000006e0500000520000000000000,JC-P301U,a:b2,b:b3,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a2,righty:a3,start:b11,x:b0,y:b1,platform:Windows,",
+"030000006e0500000320000000000000,JC-U3613M (DInput),a:b2,b:b3,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a2,righty:a3,start:b11,x:b0,y:b1,platform:Windows,",
+"030000006e0500000720000000000000,JC-W01U,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b1,platform:Windows,",
+"030000007e0500000620000000000000,Joy-Con (L),+leftx:h0.2,+lefty:h0.4,-leftx:h0.8,-lefty:h0.1,a:b0,b:b1,back:b13,leftshoulder:b4,leftstick:b10,rightshoulder:b5,start:b8,x:b2,y:b3,platform:Windows,",
+"030000007e0500000620000001000000,Joy-Con (L),+leftx:h0.2,+lefty:h0.4,-leftx:h0.8,-lefty:h0.1,a:b0,b:b1,back:b13,leftshoulder:b4,leftstick:b10,rightshoulder:b5,start:b8,x:b2,y:b3,platform:Windows,",
+"030000007e0500000720000000000000,Joy-Con (R),+leftx:h0.2,+lefty:h0.4,-leftx:h0.8,-lefty:h0.1,a:b0,b:b1,back:b12,leftshoulder:b4,leftstick:b11,rightshoulder:b5,start:b9,x:b2,y:b3,platform:Windows,",
+"030000007e0500000720000001000000,Joy-Con (R),+leftx:h0.2,+lefty:h0.4,-leftx:h0.8,-lefty:h0.1,a:b0,b:b1,back:b12,leftshoulder:b4,leftstick:b11,rightshoulder:b5,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000bd12000003c0000010010000,Joypad Alpha Shock,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000bd12000003c0000000000000,JY-P70UR,a:b1,b:b0,back:b5,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b7,leftx:a0,lefty:a1,rightshoulder:b8,rightstick:b11,righttrigger:b9,rightx:a3,righty:a2,start:b4,x:b3,y:b2,platform:Windows,",
+"03000000242f00002d00000000000000,JYS Wireless Adapter,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000242f00008a00000000000000,JYS Wireless Adapter,a:b1,b:b4,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b0,y:b3,platform:Windows,",
+"03000000790000000200000000000000,King PS3 Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a4,start:b9,x:b3,y:b0,platform:Windows,",
+"030000006d040000d1ca000000000000,Logitech ChillStream,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006d040000d2ca000000000000,Logitech Cordless Precision,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006d04000011c2000000000000,Logitech Cordless Wingman,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b9,leftstick:b5,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b10,rightstick:b2,righttrigger:b7,rightx:a3,righty:a4,x:b4,platform:Windows,",
+"030000006d04000016c2000000000000,Logitech Dual Action,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006d04000018c2000000000000,Logitech F510 Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006d04000019c2000000000000,Logitech F710 Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006d0400001ac2000000000000,Logitech Precision Gamepad,a:b1,b:b2,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006d0400000ac2000000000000,Logitech WingMan RumblePad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,lefttrigger:b7,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b2,rightx:a3,righty:a4,x:b3,y:b4,platform:Windows,",
+"03000000380700006652000000000000,Mad Catz C.T.R.L.R,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000380700005032000000000000,Mad Catz FightPad PRO (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000380700005082000000000000,Mad Catz FightPad PRO (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000380700008433000000000000,Mad Catz FightStick TE S+ (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000380700008483000000000000,Mad Catz FightStick TE S+ (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000380700008134000000000000,Mad Catz FightStick TE2+ PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b7,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b4,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000380700008184000000000000,Mad Catz FightStick TE2+ PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b5,leftstick:b10,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b4,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000380700006252000000000000,Mad Catz Micro C.T.R.L.R,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000380700008034000000000000,Mad Catz TE2 PS3 Fightstick,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000380700008084000000000000,Mad Catz TE2 PS4 Fightstick,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000380700008532000000000000,Madcatz Arcade Fightstick TE S PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000380700003888000000000000,Madcatz Arcade Fightstick TE S+ PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000380700001888000000000000,MadCatz SFIV FightStick PS3,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b5,lefttrigger:b7,leftx:a0,lefty:a1,rightshoulder:b4,righttrigger:b6,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000380700008081000000000000,MADCATZ SFV Arcade FightStick Alpha PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000002a0600001024000000000000,Matricom,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b2,y:b3,platform:Windows,",
+"030000009f000000adbb000000000000,MaxJoypad Virtual Controller,a:b1,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Windows,",
+"03000000250900000128000000000000,Mayflash Arcade Stick,a:b1,b:b2,back:b8,leftshoulder:b0,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b3,righttrigger:b7,start:b9,x:b5,y:b6,platform:Windows,",
+"03000000790000004418000000000000,Mayflash GameCube Controller,a:b1,b:b2,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:a4,rightx:a5,righty:a2,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000790000004318000000000000,Mayflash GameCube Controller Adapter,a:b1,b:b2,back:b0,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b0,leftshoulder:b4,leftstick:b0,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b0,righttrigger:a4,rightx:a5,righty:a2,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000242f00007300000000000000,Mayflash Magic NS,a:b1,b:b4,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b0,y:b3,platform:Windows,",
+"0300000079000000d218000000000000,Mayflash Magic NS,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000d620000010a7000000000000,Mayflash Magic NS,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000008f0e00001030000000000000,Mayflash USB Adapter for original Sega Saturn controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,lefttrigger:b5,rightshoulder:b2,righttrigger:b7,start:b9,x:b3,y:b4,platform:Windows,",
+"0300000025090000e803000000000000,Mayflash Wii Classic Controller,a:b1,b:b0,back:b8,dpdown:b13,dpleft:b12,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b2,platform:Windows,",
+"03000000790000000018000000000000,Mayflash WiiU Pro Game Controller Adapter (DInput),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000790000002418000000000000,Mega Drive,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,rightshoulder:b2,start:b9,x:b3,y:b4,platform:Windows,",
+"03000000380700006382000000000000,MLG GamePad PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000c62400002a89000000000000,MOGA XP5-A Plus,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b15,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000c62400002b89000000000000,MOGA XP5-A Plus,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000c62400001a89000000000000,MOGA XP5-X Plus,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000c62400001b89000000000000,MOGA XP5-X Plus,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000efbe0000edfe000000000000,Monect Virtual Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000250900006688000000000000,MP-8866 Super Dual Box,a:b2,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Windows,",
+"030000006b140000010c000000000000,NACON GC-400ES,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000921200004b46000000000000,NES 2-port Adapter,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,start:b11,platform:Windows,",
+"03000000790000004518000000000000,NEXILUX GAMECUBE Controller Adapter,platform:Windows,a:b1,b:b0,x:b2,y:b3,start:b9,rightshoulder:b7,dpup:h0.1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,leftx:a0,lefty:a1,rightx:a5,righty:a2,lefttrigger:a3,righttrigger:a4,",
+"030000001008000001e5000000000000,NEXT SNES Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,righttrigger:b6,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000152000000182000000000000,NGDS,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000bd12000015d0000000000000,Nintendo Retrolink USB Super SNES Classic Controller,a:b2,b:b1,back:b8,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Windows,",
+"030000007e0500000920000000000000,Nintendo Switch Pro Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"030000000d0500000308000000000000,Nostromo N45,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b9,leftshoulder:b4,leftstick:b12,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b10,x:b2,y:b3,platform:Windows,",
+"03000000550900001472000000000000,NVIDIA Controller v01.04,a:b11,b:b10,back:b13,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b7,leftstick:b5,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b4,righttrigger:a5,rightx:a3,righty:a6,start:b3,x:b9,y:b8,platform:Windows,",
+"030000004b120000014d000000000000,NYKO AIRFLO,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:a3,leftstick:a0,lefttrigger:b6,rightshoulder:b5,rightstick:a2,righttrigger:b7,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000d620000013a7000000000000,NSW wired controller,platform:Windows,a:b1,b:b2,x:b0,y:b3,back:b8,guide:b12,start:b9,leftstick:b10,rightstick:b11,leftshoulder:b4,rightshoulder:b5,dpup:h0.1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:b6,righttrigger:b7,",
+"03000000782300000a10000000000000,Onlive Wireless Controller,a:b15,b:b14,back:b7,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b5,leftshoulder:b11,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b10,rightstick:b8,righttrigger:a5,rightx:a3,righty:a4,start:b6,x:b13,y:b12,platform:Windows,",
+"03000000d62000006d57000000000000,OPP PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006b14000001a1000000000000,Orange Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a4,rightx:a5,righty:a2,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000362800000100000000000000,OUYA Game Controller,a:b0,b:b3,dpdown:b9,dpleft:b10,dpright:b11,dpup:b8,guide:b14,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:b13,rightx:a3,righty:a4,x:b1,y:b2,platform:Windows,",
+"03000000120c0000f60e000000000000,P4 Wired Gamepad,a:b1,b:b2,back:b12,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b5,lefttrigger:b7,rightshoulder:b4,righttrigger:b6,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00000901000000000000,PDP Versus Fighting Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"030000008f0e00000300000000000000,Piranha xtreme,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Windows,",
+"030000004c050000da0c000000000000,PlayStation Classic Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,lefttrigger:b4,rightshoulder:b7,righttrigger:b5,start:b9,x:b3,y:b0,platform:Windows,",
+"030000004c0500003713000000000000,PlayStation Vita,a:b1,b:b2,back:b8,dpdown:b13,dpleft:b15,dpright:b14,dpup:b12,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,rightx:a3,righty:a4,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000d62000006dca000000000000,PowerA Pro Ex,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000d62000009557000000000000,Pro Elite PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000d62000009f31000000000000,Pro Ex mini PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000d6200000c757000000000000,Pro Ex mini PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000632500002306000000000000,PS Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000e30500009605000000000000,PS to USB convert cable,a:b2,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Windows,",
+"03000000100800000100000000000000,PS1 Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Windows,",
+"030000008f0e00007530000000000000,PS1 Controller,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b1,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000100800000300000000000000,PS2 Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a4,righty:a2,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000250900008888000000000000,PS2 Controller,a:b2,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Windows,",
+"03000000666600006706000000000000,PS2 Controller,a:b2,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,leftshoulder:b6,leftstick:b9,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b10,righttrigger:b5,rightx:a2,righty:a3,start:b11,x:b3,y:b0,platform:Windows,",
+"030000006b1400000303000000000000,PS2 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"030000009d0d00001330000000000000,PS2 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000250900000500000000000000,PS3 Controller,a:b2,b:b1,back:b9,dpdown:h0.8,dpleft:h0.4,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b0,y:b3,platform:Windows,",
+"030000004c0500006802000000000000,PS3 Controller,a:b2,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b10,lefttrigger:a3~,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:a4~,rightx:a2,righty:a5,start:b8,x:b3,y:b0,platform:Windows,",
+"03000000632500007505000000000000,PS3 Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000888800000803000000000000,PS3 Controller,a:b2,b:b1,back:b8,dpdown:h0.8,dpleft:h0.4,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b9,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:b7,rightx:a3,righty:a4,start:b11,x:b0,y:b3,platform:Windows,",
+"030000008f0e00001431000000000000,PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000003807000056a8000000000000,PS3 RF pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000100000008200000000000000,PS360+ v1.66,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:h0.4,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"030000004c050000a00b000000000000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000004c050000c405000000000000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000004c050000cc09000000000000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000004c050000e60c000000000000,PS5 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,misc1:b13,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000ff000000cb01000000000000,PSP,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,start:b7,x:b2,y:b3,platform:Windows,",
+"03000000300f00000011000000000000,QanBa Arcade JoyStick 1008,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b10,x:b0,y:b3,platform:Windows,",
+"03000000300f00001611000000000000,QanBa Arcade JoyStick 4018,a:b1,b:b2,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b9,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b8,x:b0,y:b3,platform:Windows,",
+"03000000222c00000020000000000000,QANBA DRONE ARCADE JOYSTICK,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,rightshoulder:b5,righttrigger:a4,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000300f00001210000000000000,QanBa Joystick Plus,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,rightshoulder:b5,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000341a00000104000000000000,QanBa Joystick Q4RAF,a:b5,b:b6,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b0,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b3,righttrigger:b7,start:b9,x:b1,y:b2,platform:Windows,",
+"03000000222c00000223000000000000,Qanba Obsidian Arcade Joystick PS3 Mode,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000222c00000023000000000000,Qanba Obsidian Arcade Joystick PS4 Mode,a:b1,b:b2,back:b13,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000321500000003000000000000,Razer Hydra,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a2,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,",
+"03000000321500000204000000000000,Razer Panthera (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000321500000104000000000000,Razer Panthera (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000321500000507000000000000,Razer Raiju Mobile,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000321500000707000000000000,Razer Raiju Mobile,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000321500000011000000000000,Razer Raion Fightpad for PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000321500000009000000000000,Razer Serval,+lefty:+a2,-lefty:-a1,a:b0,b:b1,back:b12,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,leftx:a0,rightshoulder:b5,rightstick:b9,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,",
+"030000000d0f00001100000000000000,REAL ARCADE PRO.3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,rightshoulder:b5,rightstick:b11,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00006a00000000000000,Real Arcade Pro.4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00006b00000000000000,Real Arcade Pro.4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00008a00000000000000,Real Arcade Pro.4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00008b00000000000000,Real Arcade Pro.4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00007000000000000000,REAL ARCADE PRO.4 VLX,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,rightshoulder:b5,rightstick:b11,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00002200000000000000,REAL ARCADE Pro.V3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00005b00000000000000,Real Arcade Pro.V4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000000d0f00005c00000000000000,Real Arcade Pro.V4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000790000001100000000000000,Retrolink SNES Controller,a:b2,b:b1,back:b8,dpdown:+a4,dpleft:-a3,dpright:+a3,dpup:-a4,leftshoulder:b4,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000bd12000013d0000000000000,Retrolink USB SEGA Saturn Classic,a:b0,b:b1,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b5,lefttrigger:b6,rightshoulder:b2,righttrigger:b7,start:b8,x:b3,y:b4,platform:Windows,",
+"0300000000f000000300000000000000,RetroUSB.com RetroPad,a:b1,b:b5,back:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b3,x:b0,y:b4,platform:Windows,",
+"0300000000f00000f100000000000000,RetroUSB.com Super RetroPort,a:b1,b:b5,back:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b3,x:b0,y:b4,platform:Windows,",
+"030000006b140000010d000000000000,Revolution Pro Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006b140000020d000000000000,Revolution Pro Controller 2(1/2),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006b140000130d000000000000,Revolution Pro Controller 3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00001e01000000000000,Rock Candy PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00002801000000000000,Rock Candy PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00002f01000000000000,Rock Candy PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000004f04000003d0000000000000,run'n'drive,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b7,leftshoulder:a3,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:a4,rightstick:b11,righttrigger:b5,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000a30600001af5000000000000,Saitek Cyborg,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000a306000023f6000000000000,Saitek Cyborg V.1 Game pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000300f00001201000000000000,Saitek Dual Analog Pad,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Windows,",
+"03000000a30600000701000000000000,Saitek P220,a:b2,b:b3,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,lefttrigger:b7,rightshoulder:b4,righttrigger:b5,x:b0,y:b1,platform:Windows,",
+"03000000a30600000cff000000000000,Saitek P2500 Force Rumble Pad,a:b2,b:b3,back:b11,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a2,righty:a3,start:b10,x:b0,y:b1,platform:Windows,",
+"03000000a30600000c04000000000000,Saitek P2900,a:b1,b:b2,back:b12,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000300f00001001000000000000,Saitek P480 Rumble Pad,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Windows,",
+"03000000a30600000b04000000000000,Saitek P990,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000a30600000b04000000010000,Saitek P990 Dual Analog Pad,a:b1,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b8,x:b0,y:b3,platform:Windows,",
+"03000000a30600002106000000000000,Saitek PS1000,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000a306000020f6000000000000,Saitek PS2700,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000300f00001101000000000000,Saitek Rumble Pad,a:b2,b:b3,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Windows,",
+"03000000730700000401000000000000,Sanwa PlayOnline Mobile,a:b0,b:b1,back:b2,leftx:a0,lefty:a1,start:b3,platform:Windows,",
+"0300000000050000289b000000000000,Saturn_Adapter_2.0,a:b1,b:b2,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000009b2800000500000000000000,Saturn_Adapter_2.0,a:b1,b:b2,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000a30c00002500000000000000,Sega Genesis Mini 3B controller,a:b2,b:b1,dpdown:+a4,dpleft:-a3,dpright:+a3,dpup:-a4,righttrigger:b5,start:b9,platform:Windows,",
+"03000000a30c00002400000000000000,Sega Mega Drive Mini 6B controller,a:b2,b:b1,dpdown:+a4,dpleft:-a3,dpright:+a3,dpup:-a4,rightshoulder:b4,righttrigger:b5,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000341a00000208000000000000,SL-6555-SBK,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:-a4,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a4,rightx:a3,righty:a2,start:b7,x:b2,y:b3,platform:Windows,",
+"03000000341a00000908000000000000,SL-6566,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"030000008f0e00000800000000000000,SpeedLink Strike FX,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000c01100000591000000000000,Speedlink Torid,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000d11800000094000000000000,Stadia Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:b12,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:b11,rightx:a3,righty:a4,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000110100001914000000000000,SteelSeries,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftstick:b13,lefttrigger:b6,leftx:a0,lefty:a1,rightstick:b14,righttrigger:b7,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000381000001214000000000000,SteelSeries Free,a:b0,b:b1,back:b12,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000110100003114000000000000,SteelSeries Stratus Duo,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000381000001814000000000000,SteelSeries Stratus XL,a:b0,b:b1,back:b18,dpdown:b13,dpleft:b14,dpright:b15,dpup:b12,guide:b19,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000790000001c18000000000000,STK-7024X,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000ff1100003133000000000000,SVEN X-PAD,a:b2,b:b3,back:b4,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b9,rightx:a2,righty:a4,start:b5,x:b0,y:b1,platform:Windows,",
+"03000000d620000011a7000000000000,Switch,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000457500002211000000000000,SZMY-POWER PC Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000004f04000007d0000000000000,T Mini Wireless,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000004f0400000ab1000000000000,T.16000M,a:b0,b:b1,back:b12,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b11,leftshoulder:b4,lefttrigger:b9,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:b7,start:b10,x:b2,y:b3,platform:Windows,",
+"03000000fa1900000706000000000000,Team 5,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000b50700001203000000000000,Techmobility X6-38V,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Windows,",
+"030000004f04000015b3000000000000,Thrustmaster Dual Analog 4,a:b0,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b1,y:b3,platform:Windows,",
+"030000004f04000023b3000000000000,Thrustmaster Dual Trigger 3-in-1,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000004f0400000ed0000000000000,ThrustMaster eSwap PRO Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"030000004f04000000b3000000000000,Thrustmaster Firestorm Dual Power,a:b0,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b11,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b12,righttrigger:b7,rightx:a2,righty:a3,start:b10,x:b1,y:b3,platform:Windows,",
+"030000004f04000004b3000000000000,Thrustmaster Firestorm Dual Power 3,a:b0,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b1,y:b3,platform:Windows,",
+"03000000666600000488000000000000,TigerGame PS/PS2 Game Controller Adapter,a:b2,b:b1,back:b9,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Windows,",
+"03000000d62000006000000000000000,Tournament PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"030000005f140000c501000000000000,Trust Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000b80500000210000000000000,Trust Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"030000004f04000087b6000000000000,TWCS Throttle,dpdown:b8,dpleft:b9,dpright:b7,dpup:b6,leftstick:b5,lefttrigger:-a5,leftx:a0,lefty:a1,righttrigger:+a5,platform:Windows,",
+"03000000d90400000200000000000000,TwinShock PS2,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Windows,",
+"030000006e0500001320000000000000,U4113,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000101c0000171c000000000000,uRage Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000300f00000701000000000000,USB 4-Axis 12-Button Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000341a00002308000000000000,USB gamepad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"030000005509000000b4000000000000,USB gamepad,a:b10,b:b11,back:b5,dpdown:b1,dpleft:b2,dpright:b3,dpup:b0,guide:b14,leftshoulder:b8,leftstick:b6,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b9,rightstick:b7,righttrigger:a5,rightx:a2,righty:a3,start:b4,x:b12,y:b13,platform:Windows,",
+"030000006b1400000203000000000000,USB gamepad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000790000000a00000000000000,USB gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a4,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000f0250000c183000000000000,USB gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000ff1100004133000000000000,USB gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a4,righty:a2,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000632500002305000000000000,USB Vibration Joystick (BM),a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000790000001a18000000000000,Venom,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Windows,",
+"03000000790000001b18000000000000,Venom Arcade Joystick,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00000302000000000000,Victrix Pro Fight Stick for PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"030000006f0e00000702000000000000,Victrix Pro Fight Stick for PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Windows,",
+"0300000034120000adbe000000000000,vJoy Device,a:b0,b:b1,back:b15,dpdown:b6,dpleft:b7,dpright:b8,dpup:b5,guide:b16,leftshoulder:b9,leftstick:b13,lefttrigger:b11,leftx:a0,lefty:a1,rightshoulder:b10,rightstick:b14,righttrigger:b12,rightx:a3,righty:a4,start:b4,x:b2,y:b3,platform:Windows,",
+"030000005e0400000a0b000000000000,Xbox Adaptive Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:+a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:-a2,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,",
+"030000005e040000130b000000000000,Xbox Series Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,",
+"03000000341a00000608000000000000,Xeox,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000450c00002043000000000000,XEOX Gamepad SL-6556-BK,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Windows,",
+"03000000ac0500005b05000000000000,Xiaoji Gamesir-G3w,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Windows,",
+"03000000172700004431000000000000,XiaoMi Game Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b20,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a7,rightx:a2,righty:a5,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000786901006e70000000000000,XInput Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Windows,",
+"03000000790000004f18000000000000,ZD-T Android,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b3,y:b4,platform:Windows,",
+"03000000120c0000101e000000000000,ZEROPLUS P4 Wired Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Windows,",
+"78696e70757401000000000000000000,XInput Gamepad (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757402000000000000000000,XInput Wheel (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757403000000000000000000,XInput Arcade Stick (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757404000000000000000000,XInput Flight Stick (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757405000000000000000000,XInput Dance Pad (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757406000000000000000000,XInput Guitar (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757408000000000000000000,XInput Drum Kit (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+#endif // _GLFW_WIN32
+
+#if defined(_GLFW_COCOA)
+"030000008f0e00000300000009010000,2In1 USB Joystick,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"03000000c82d00000090000001000000,8BitDo FC30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a5,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000c82d00001038000000010000,8BitDo FC30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000c82d00000650000001000000,8BitDo M30,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b8,lefttrigger:b9,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:b7,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"03000000c82d00005106000000010000,8BitDo M30 Gamepad,a:b1,b:b0,back:b10,guide:b2,leftshoulder:b6,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:a4,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000c82d00001590000001000000,8BitDo N30 Pro 2,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a5,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000c82d00006528000000010000,8BitDo N30 Pro 2,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"030000003512000012ab000001000000,8BitDo NES30 Gamepad,a:b1,b:b0,back:b10,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000022000000090000001000000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000203800000900000000010000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000c82d00000190000001000000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000102800000900000000000000,8Bitdo SFC30 GamePad Joystick,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000c82d00001290000001000000,8BitDo SN30 Gamepad,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000c82d00004028000000010000,8Bitdo SN30 GamePad,a:b1,b:b0,x:b4,y:b3,back:b10,start:b11,leftshoulder:b6,rightshoulder:b7,dpup:-a1,dpdown:+a1,dpleft:-a0,dpright:+a0,platform:Mac OS X,",
+"03000000c82d00000160000001000000,8BitDo SN30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a5,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000c82d00000161000000010000,8BitDo SN30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a5,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000c82d00000260000001000000,8BitDo SN30 Pro+,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000c82d00000261000000010000,8BitDo SN30 Pro+,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000c82d00000031000001000000,8BitDo Wireless Adapter,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"03000000c82d00001890000001000000,8BitDo Zero 2,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000c82d00003032000000010000,8BitDo Zero 2,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,rightx:a2,righty:a31,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"03000000a00500003232000008010000,8Bitdo Zero GamePad,a:b0,b:b1,back:b10,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"03000000a00500003232000009010000,8Bitdo Zero GamePad,a:b0,b:b1,back:b10,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"03000000a30c00002700000003030000,Astro City Mini,a:b2,b:b1,back:b8,leftx:a3,lefty:a4,rightshoulder:b4,righttrigger:b5,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"03000000a30c00002800000003030000,Astro City Mini,a:b2,b:b1,back:b8,leftx:a3,lefty:a4,rightshoulder:b4,righttrigger:b5,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"03000000050b00000045000031000000,ASUS Gamepad,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b7,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Mac OS X,",
+"03000000ef0500000300000000020000,AxisPad,a:b2,b:b3,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a3,righty:a2,start:b11,x:b0,y:b1,platform:Mac OS X,",
+"03000000491900001904000001010000,Amazon Luna Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,misc1:b9,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b7,x:b2,y:b3,platform:Mac OS X,",
+"03000000710100001904000000010000,Amazon Luna Controller,a:b0,b:b1,back:b11,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b7,lefttrigger:a5,leftx:a0,lefty:a1,misc1:b9,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a3,start:b6,x:b2,y:b3,platform:Mac OS X,",
+"03000000c62400001a89000000010000,BDA MOGA XP5-X Plus,a:b0,b:b1,back:b12,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b14,leftshoulder:b6,leftstick:b15,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b16,righttrigger:a4,rightx:a2,righty:a3,start:b13,x:b3,y:b4,platform:Mac OS X,",
+"03000000c62400001b89000000010000,BDA MOGA XP5-X Plus,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"03000000d62000002a79000000010000,BDA PS4 Fightpad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000120c0000200e000000010000,Brook Mars,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000120c0000210e000000010000,Brook Mars,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000008305000031b0000000000000,Cideko AK08b,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000260900008888000088020000,Cyber Gadget GameCube Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:a5,rightx:a2,righty:a3~,start:b7,x:b2,y:b3,platform:Mac OS X,",
+"03000000a306000022f6000001030000,Cyborg V.3 Rumble Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:+a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:-a3,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000790000004618000000010000,GameCube Controller Adapter,a:b4,b:b0,dpdown:b56,dpleft:b60,dpright:b52,dpup:b48,lefttrigger:a12,leftx:a0,lefty:a4,rightshoulder:b28,righttrigger:a16,rightx:a20,righty:a8,start:b36,x:b8,y:b12,platform:Mac OS X,",
+"03000000ad1b000001f9000000000000,Gamestop BB-070 X360 Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"0500000047532047616d657061640000,GameStop Gamepad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Mac OS X,",
+"03000000c01100000140000000010000,GameStop PS4 Fun Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000006f0e00000102000000000000,GameStop Xbox 360 Wired Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"030000007d0400000540000001010000,Gravis Eliminator GamePad Pro,a:b1,b:b2,back:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000280400000140000000020000,Gravis Gamepad Pro,a:b1,b:b2,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000008f0e00000300000007010000,GreenAsia Inc. USB Joystick,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Mac OS X,",
+"030000000d0f00002d00000000100000,Hori Fighting Commander 3 Pro,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000000d0f00005f00000000010000,Hori Fighting Commander 4 (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000000d0f00005e00000000010000,Hori Fighting Commander 4 (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000000d0f00005f00000000000000,HORI Fighting Commander 4 PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000000d0f00005e00000000000000,HORI Fighting Commander 4 PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000000d0f00004d00000000000000,HORI Gem Pad 3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000000d0f00009200000000010000,Hori Pokken Tournament DX Pro Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000000d0f00006e00000000010000,HORIPAD 4 (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000000d0f00006600000000010000,HORIPAD 4 (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000000d0f00006600000000000000,HORIPAD FPS PLUS 4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000000d0f0000ee00000000010000,HORIPAD mini4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000008f0e00001330000011010000,HuiJia SNES Controller,a:b4,b:b2,back:b16,dpdown:+a2,dpleft:-a0,dpright:+a0,dpup:-a2,leftshoulder:b12,rightshoulder:b14,start:b18,x:b6,y:b0,platform:Mac OS X,",
+"03000000830500006020000000010000,iBuffalo SNES Controller,a:b1,b:b0,back:b6,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b7,x:b3,y:b2,platform:Mac OS X,",
+"03000000830500006020000000000000,iBuffalo USB 2-axis 8-button Gamepad,a:b1,b:b0,back:b6,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,start:b7,x:b3,y:b2,platform:Mac OS X,",
+"030000007e0500000620000001000000,Joy-Con (L),+leftx:h0.2,+lefty:h0.4,-leftx:h0.8,-lefty:h0.1,a:b0,b:b1,back:b13,leftshoulder:b4,leftstick:b10,rightshoulder:b5,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"030000007e0500000720000001000000,Joy-Con (R),+leftx:h0.2,+lefty:h0.4,-leftx:h0.8,-lefty:h0.1,a:b0,b:b1,back:b12,leftshoulder:b4,leftstick:b11,rightshoulder:b5,start:b9,x:b2,y:b3,platform:Mac OS X,",
+"03000000242f00002d00000007010000,JYS Wireless Adapter,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"030000006d04000016c2000000020000,Logitech Dual Action,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000006d04000016c2000000030000,Logitech Dual Action,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000006d04000016c2000014040000,Logitech Dual Action,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000006d04000016c2000000000000,Logitech F310 Gamepad (DInput),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000006d04000018c2000000000000,Logitech F510 Gamepad (DInput),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000006d04000019c2000005030000,Logitech F710,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000006d0400001fc2000000000000,Logitech F710 Gamepad (XInput),a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"030000006d04000018c2000000010000,Logitech RumblePad 2 USB,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1~,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3~,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000006d04000019c2000000000000,Logitech Wireless Gamepad (DInput),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000380700005032000000010000,Mad Catz FightPad PRO (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000380700005082000000010000,Mad Catz FightPad PRO (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000380700008433000000010000,Mad Catz FightStick TE S+ (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000380700008483000000010000,Mad Catz FightStick TE S+ (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000790000000600000007010000,Marvo GT-004,a:b2,b:b1,x:b3,y:b0,back:b8,start:b9,leftstick:b10,rightstick:b11,leftshoulder:b4,rightshoulder:b5,dpup:h0.1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:b6,righttrigger:b7,platform:Mac OS X,",
+"03000000790000004418000000010000,Mayflash GameCube Controller,a:b1,b:b2,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:a4,rightx:a5,righty:a2,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000242f00007300000000020000,Mayflash Magic NS,a:b1,b:b4,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b0,y:b3,platform:Mac OS X,",
+"0300000079000000d218000026010000,Mayflash Magic NS,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"03000000d620000010a7000003010000,Mayflash Magic NS,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"0300000025090000e803000000000000,Mayflash Wii Classic Controller,a:b1,b:b0,back:b8,dpdown:b13,dpleft:b12,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b2,platform:Mac OS X,",
+"03000000790000000018000000010000,Mayflash Wii U Pro Controller Adapter,a:b4,b:b8,back:b32,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b16,leftstick:b40,lefttrigger:b24,leftx:a0,lefty:a4,rightshoulder:b20,rightstick:b44,righttrigger:b28,rightx:a8,righty:a12,start:b36,x:b0,y:b12,platform:Mac OS X,",
+"03000000790000000018000000000000,Mayflash WiiU Pro Game Controller Adapter (DInput),a:b4,b:b8,back:b32,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b16,leftstick:b40,lefttrigger:b24,leftx:a0,lefty:a4,rightshoulder:b20,rightstick:b44,righttrigger:b28,rightx:a8,righty:a12,start:b36,x:b0,y:b12,platform:Mac OS X,",
+"03000000d8140000cecf000000000000,MC Cthulhu,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000005e0400002700000001010000,Microsoft SideWinder Plug & Play Game Pad,a:b0,b:b1,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,lefttrigger:b4,leftx:a0,lefty:a1,righttrigger:b5,x:b2,y:b3,platform:Mac OS X,",
+"03000000d62000007162000001000000,Moga Pro 2 HID,a:b0,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b7,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a3,start:b6,x:b2,y:b3,platform:Mac OS X,",
+"03000000c62400002a89000000010000,MOGA XP5-A Plus,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b21,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"03000000c62400002b89000000010000,MOGA XP5-A Plus,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"03000000632500007505000000020000,NEOGEO mini PAD Controller,a:b1,b:b0,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,start:b9,x:b2,y:b3,platform:Mac OS X,",
+"03000000921200004b46000003020000,NES 2-port Adapter,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,start:b11,platform:Mac OS X,",
+"030000001008000001e5000006010000,NEXT SNES Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,righttrigger:b6,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"03000000d620000011a7000000020000,Nintendo Switch Core (Plus) Wired Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000d620000011a7000010050000,Nintendo Switch PowerA Wired Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000007e0500000920000000000000,Nintendo Switch Pro Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Mac OS X,",
+"030000007e0500000920000001000000,Nintendo Switch Pro Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Mac OS X,",
+"03000000550900001472000025050000,NVIDIA Controller v01.04,a:b0,b:b1,back:b17,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b15,leftshoulder:b4,leftstick:b7,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a5,start:b6,x:b2,y:b3,platform:Mac OS X,",
+"030000006f0e00000901000002010000,PDP Versus Fighting Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000008f0e00000300000000000000,Piranha xtreme,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"030000004c050000da0c000000010000,Playstation Classic Controller,a:b2,b:b1,back:b8,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"030000004c0500003713000000010000,PlayStation Vita,a:b1,b:b2,back:b8,dpdown:b13,dpleft:b15,dpright:b14,dpup:b12,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,rightx:a3,righty:a4,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000d62000006dca000000010000,PowerA Pro Ex,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000100800000300000006010000,PS2 Adapter,a:b2,b:b1,back:b8,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a4,righty:a3,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"030000004c0500006802000000000000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Mac OS X,",
+"030000004c0500006802000000010000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Mac OS X,",
+"030000004c050000a00b000000010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000004c050000c405000000000000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000004c050000c405000000010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000004c050000cc09000000010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"050000004c050000e60c000000010000,PS5 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,misc1:b13,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000008916000000fd000000000000,Razer Onza TE,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"03000000321500000204000000010000,Razer Panthera (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000321500000104000000010000,Razer Panthera (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000321500000010000000010000,Razer RAIJU,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000321500000507000001010000,Razer Raiju Mobile,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b21,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"03000000321500000011000000010000,Razer Raion Fightpad for PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000321500000009000000020000,Razer Serval,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a4,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Mac OS X,",
+"030000003215000000090000163a0000,Razer Serval,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a4,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Mac OS X,",
+"0300000032150000030a000000000000,Razer Wildcat,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"03000000790000001100000000000000,Retrolink Classic Controller,a:b2,b:b1,back:b8,leftshoulder:b4,leftx:a3,lefty:a4,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"03000000790000001100000006010000,Retrolink SNES Controller,a:b2,b:b1,back:b8,dpdown:+a4,dpleft:-a3,dpright:+a3,dpup:-a4,leftshoulder:b4,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"030000006b140000010d000000010000,Revolution Pro Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000006b140000130d000000010000,Revolution Pro Controller 3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000c6240000fefa000000000000,Rock Candy Gamepad for PS3,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"03000000730700000401000000010000,Sanwa PlayOnline Mobile,a:b0,b:b1,back:b2,leftx:a0,lefty:a1,start:b3,platform:Mac OS X,",
+"03000000811700007e05000000000000,Sega Saturn,a:b2,b:b4,dpdown:b16,dpleft:b15,dpright:b14,dpup:b17,leftshoulder:b8,lefttrigger:a5,leftx:a0,lefty:a2,rightshoulder:b9,righttrigger:a4,start:b13,x:b0,y:b6,platform:Mac OS X,",
+"03000000b40400000a01000000000000,Sega Saturn USB Gamepad,a:b0,b:b1,back:b5,guide:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b8,x:b3,y:b4,platform:Mac OS X,",
+"030000003512000021ab000000000000,SFC30 Joystick,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Mac OS X,",
+"0300000000f00000f100000000000000,SNES RetroPort,a:b2,b:b3,back:b4,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b5,rightshoulder:b7,start:b6,x:b0,y:b1,platform:Mac OS X,",
+"030000004c050000e60c000000010000,Sony DualSense,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000004c050000cc09000000000000,Sony DualShock 4 V2,a:b1,b:b2,back:b13,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000004c050000a00b000000000000,Sony DualShock 4 Wireless Adaptor,a:b1,b:b2,back:b13,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000d11800000094000000010000,Stadia Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a4,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Mac OS X,",
+"030000005e0400008e02000001000000,Steam Virtual Gamepad,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"03000000110100002014000000000000,SteelSeries Nimbus,a:b0,b:b1,dpdown:b9,dpleft:b11,dpright:b10,dpup:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b12,x:b2,y:b3,platform:Mac OS X,",
+"03000000110100002014000001000000,SteelSeries Nimbus,a:b0,b:b1,dpdown:b9,dpleft:b11,dpright:b10,dpup:b8,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1~,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3~,x:b2,y:b3,platform:Mac OS X,",
+"03000000381000002014000001000000,SteelSeries Nimbus,a:b0,b:b1,dpdown:b9,dpleft:b11,dpright:b10,dpup:b8,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1~,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3~,x:b2,y:b3,platform:Mac OS X,",
+"050000004e696d6275732b0000000000,SteelSeries Nimbus Plus,a:b0,b:b1,back:b15,dpdown:b11,dpleft:b13,dpright:b12,dpup:b10,guide:b16,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1~,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a2,righty:a3~,start:b14,x:b2,y:b3,platform:Mac OS X,",
+"03000000110100001714000000000000,SteelSeries Stratus XL,a:b0,b:b1,dpdown:b9,dpleft:b11,dpright:b10,dpup:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1~,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3~,start:b12,x:b2,y:b3,platform:Mac OS X,",
+"03000000110100001714000020010000,SteelSeries Stratus XL,a:b0,b:b1,dpdown:b9,dpleft:b11,dpright:b10,dpup:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1~,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3~,start:b12,x:b2,y:b3,platform:Mac OS X,",
+"03000000457500002211000000010000,SZMY-POWER PC Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000004f04000015b3000000000000,Thrustmaster Dual Analog 3.2,a:b0,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b1,y:b3,platform:Mac OS X,",
+"030000004f0400000ed0000000020000,ThrustMaster eSwap PRO Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000004f04000000b3000000000000,Thrustmaster Firestorm Dual Power,a:b0,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b11,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:b7,rightx:a2,righty:a3,start:b10,x:b1,y:b3,platform:Mac OS X,",
+"03000000bd12000015d0000000000000,Tomee SNES USB Controller,a:b2,b:b1,back:b8,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"03000000bd12000015d0000000010000,Tomee SNES USB Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"03000000100800000100000000000000,Twin USB Joystick,a:b4,b:b2,back:b16,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b12,leftstick:b20,lefttrigger:b8,leftx:a0,lefty:a2,rightshoulder:b14,rightstick:b22,righttrigger:b10,rightx:a6,righty:a4,start:b18,x:b6,y:b0,platform:Mac OS X,",
+"030000006f0e00000302000025040000,Victrix Pro Fight Stick for PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"030000006f0e00000702000003060000,Victrix Pro Fight Stick for PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000791d00000103000009010000,Wii Classic Controller,a:b2,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,guide:b10,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Mac OS X,",
+"050000005769696d6f74652028303000,Wii Remote,a:b4,b:b5,back:b7,dpdown:b3,dpleft:b0,dpright:b1,dpup:b2,guide:b8,leftshoulder:b11,lefttrigger:b12,leftx:a0,lefty:a1,start:b6,x:b10,y:b9,platform:Mac OS X,",
+"050000005769696d6f74652028313800,Wii U Pro Controller,a:b16,b:b15,back:b7,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b8,leftshoulder:b19,leftstick:b23,lefttrigger:b21,leftx:a0,lefty:a1,rightshoulder:b20,rightstick:b24,righttrigger:b22,rightx:a2,righty:a3,start:b6,x:b18,y:b17,platform:Mac OS X,",
+"030000005e0400008e02000000000000,X360 Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"030000006f0e00000104000000000000,Xbox 360 Wired Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"03000000c6240000045d000000000000,Xbox 360 Wired Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"030000005e0400000a0b000000000000,Xbox Adaptive Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"030000005e040000050b000003090000,Xbox Elite Wireless Controller Series 2,a:b0,b:b1,back:b31,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b53,leftshoulder:b6,leftstick:b13,lefttrigger:a6,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a5,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"03000000c62400003a54000000000000,Xbox One PowerA Wired Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"030000005e040000d102000000000000,Xbox One Wired Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"030000005e040000dd02000000000000,Xbox One Wired Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"030000005e040000e302000000000000,Xbox One Wired Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"030000005e040000130b000001050000,Xbox Series Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"030000005e040000130b000005050000,Xbox Series Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"030000005e040000e002000000000000,Xbox Wireless Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Mac OS X,",
+"030000005e040000e002000003090000,Xbox Wireless Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Mac OS X,",
+"030000005e040000ea02000000000000,Xbox Wireless Controller,a:b0,b:b1,back:b9,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b10,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,start:b8,x:b2,y:b3,platform:Mac OS X,",
+"030000005e040000fd02000003090000,Xbox Wireless Controller,a:b0,b:b1,back:b16,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b15,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"03000000172700004431000029010000,XiaoMi Game Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b15,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a6,rightx:a2,righty:a5,start:b11,x:b3,y:b4,platform:Mac OS X,",
+"03000000120c0000100e000000010000,ZEROPLUS P4 Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+"03000000120c0000101e000000010000,ZEROPLUS P4 Wired Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Mac OS X,",
+#endif // _GLFW_COCOA
+
+#if defined(GLFW_BUILD_LINUX_JOYSTICK)
+"03000000c82d00000090000011010000,8BitDo FC30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a5,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000c82d00001038000000010000,8Bitdo FC30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000c82d00005106000000010000,8BitDo M30,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b8,lefttrigger:b9,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:b7,start:b11,x:b3,y:b4,platform:Linux,",
+"03000000c82d00001590000011010000,8BitDo N30 Pro 2,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000c82d00006528000000010000,8BitDo N30 Pro 2,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"03000000c82d00000310000011010000,8BitDo NES30,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b7,lefttrigger:b6,rightshoulder:b9,righttrigger:b8,start:b11,x:b3,y:b4,platform:Linux,",
+"05000000c82d00008010000000010000,8BitDo NES30,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b7,lefttrigger:b6,rightshoulder:b9,righttrigger:b8,start:b11,x:b3,y:b4,platform:Linux,",
+"03000000022000000090000011010000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000203800000900000000010000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000c82d00002038000000010000,8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"03000000c82d00000190000011010000,8Bitdo NES30 Pro 8Bitdo NES30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a5,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000c82d00000060000000010000,8BitDo SF30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000c82d00000061000000010000,8Bitdo SF30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"03000000c82d000021ab000010010000,8BitDo SFC30,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Linux,",
+"030000003512000012ab000010010000,8Bitdo SFC30 GamePad,a:b2,b:b1,back:b6,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b7,x:b3,y:b0,platform:Linux,",
+"05000000102800000900000000010000,8Bitdo SFC30 GamePad,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000c82d00003028000000010000,8Bitdo SFC30 GamePad,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Linux,",
+"03000000c82d00000160000000000000,8BitDo SN30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Linux,",
+"03000000c82d00000160000011010000,8BitDo SN30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"03000000c82d00000161000000000000,8BitDo SN30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Linux,",
+"03000000c82d00001290000011010000,8BitDo SN30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a3,righty:a4,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000c82d00000161000000010000,8BitDo SN30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000c82d00006228000000010000,8BitDo SN30 Pro,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"03000000c82d00000260000011010000,8BitDo SN30 Pro+,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000c82d00000261000000010000,8BitDo SN30 Pro+,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000202800000900000000010000,8BitDo SNES30 Gamepad,a:b1,b:b0,back:b10,dpdown:b122,dpleft:b119,dpright:b120,dpup:b117,leftshoulder:b6,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Linux,",
+"03000000c82d00000031000011010000,8BitDo Wireless Adapter (DInput),a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b2,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"030000005e0400008e02000020010000,8BitDo Wireless Adapter (XInput),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000c82d00001890000011010000,8BitDo Zero 2,a:b1,b:b0,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b4,y:b3,platform:Linux,",
+"05000000c82d00003032000000010000,8BitDo Zero 2,a:b1,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,rightx:a2,righty:a3,start:b11,x:b4,y:b3,platform:Linux,",
+"050000005e040000e002000030110000,8BitDo Zero 2 (XInput),a:b0,b:b1,back:b6,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b7,x:b2,y:b3,platform:Linux,",
+"05000000a00500003232000001000000,8Bitdo Zero GamePad,a:b0,b:b1,back:b10,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b11,x:b3,y:b4,platform:Linux,",
+"05000000a00500003232000008010000,8Bitdo Zero GamePad,a:b0,b:b1,back:b10,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b11,x:b3,y:b4,platform:Linux,",
+"03000000c01100000355000011010000,ACRUX USB GAME PAD,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006f0e00001302000000010000,Afterglow,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006f0e00003901000020060000,Afterglow Controller for Xbox One,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006f0e00003901000000430000,Afterglow Prismatic Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006f0e00003901000013020000,Afterglow Prismatic Wired Controller 048-007-NA,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000100000008200000011010000,Akishop Customs PS360+ v1.66,a:b1,b:b2,back:b12,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,",
+"030000007c1800000006000010010000,Alienware Dual Compatible Game Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b3,platform:Linux,",
+"05000000491900000204000021000000,Amazon Fire Game Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b17,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,misc1:b12,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"03000000491900001904000011010000,Amazon Luna Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,misc1:b9,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b7,x:b2,y:b3,platform:Linux,",
+"05000000710100001904000000010000,Amazon Luna Controller,a:b0,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b7,lefttrigger:a5,leftx:a0,lefty:a1,misc1:b11,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a3,start:b6,x:b2,y:b3,platform:Linux,",
+"03000000790000003018000011010000,Arcade Fightstick F300,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000a30c00002700000011010000,Astro City Mini,a:b2,b:b1,back:b8,leftx:a0,lefty:a1,rightshoulder:b4,righttrigger:b5,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000a30c00002800000011010000,Astro City Mini,a:b2,b:b1,back:b8,leftx:a0,lefty:a1,rightshoulder:b4,righttrigger:b5,start:b9,x:b3,y:b0,platform:Linux,",
+"05000000050b00000045000031000000,ASUS Gamepad,a:b0,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b6,leftshoulder:b4,leftstick:b7,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a3,start:b10,x:b2,y:b3,platform:Linux,",
+"05000000050b00000045000040000000,ASUS Gamepad,a:b0,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b6,leftshoulder:b4,leftstick:b7,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a3,start:b10,x:b2,y:b3,platform:Linux,",
+"03000000503200000110000000000000,Atari Classic Controller,a:b0,back:b2,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b4,start:b3,x:b1,platform:Linux,",
+"05000000503200000110000000000000,Atari Classic Controller,a:b0,back:b2,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b4,start:b3,x:b1,platform:Linux,",
+"03000000503200000210000000000000,Atari Game Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b3,y:b2,platform:Linux,",
+"05000000503200000210000000000000,Atari Game Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b3,y:b2,platform:Linux,",
+"03000000120c00000500000010010000,AxisPad,a:b2,b:b3,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a3,righty:a2,start:b11,x:b0,y:b1,platform:Linux,",
+"03000000ef0500000300000000010000,AxisPad,a:b2,b:b3,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a3,righty:a2,start:b11,x:b0,y:b1,platform:Linux,",
+"03000000c62400001b89000011010000,BDA MOGA XP5-X Plus,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"03000000d62000002a79000011010000,BDA PS4 Fightpad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000c21100000791000011010000,Be1 GC101 Controller 1.03 mode,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000c31100000791000011010000,Be1 GC101 GAMEPAD 1.03 mode,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"030000005e0400008e02000003030000,Be1 GC101 Xbox 360 Controller mode,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"05000000bc2000000055000001000000,BETOP AX1 BFM,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"03000000666600006706000000010000,boom PSX to PC Converter,a:b2,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,leftshoulder:b6,leftstick:b9,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b10,righttrigger:b5,rightx:a2,righty:a3,start:b11,x:b3,y:b0,platform:Linux,",
+"03000000120c0000200e000011010000,Brook Mars,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000120c0000210e000011010000,Brook Mars,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000120c0000f70e000011010000,Brook Universal Fighting Board,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,rightshoulder:b5,rightstick:b11,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000ffff0000ffff000000010000,Chinese-made Xbox Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b5,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b2,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b3,y:b4,platform:Linux,",
+"03000000e82000006058000001010000,Cideko AK08b,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"030000000b0400003365000000010000,Competition Pro,a:b0,b:b1,back:b2,leftx:a0,lefty:a1,start:b3,platform:Linux,",
+"03000000260900008888000000010000,Cyber Gadget GameCube Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b6,righttrigger:a5,rightx:a2,righty:a3~,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000a306000022f6000011010000,Cyborg V.3 Rumble Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:+a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:-a3,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000b40400000a01000000010000,CYPRESS USB Gamepad,a:b0,b:b1,back:b5,guide:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b8,x:b3,y:b4,platform:Linux,",
+"03000000790000000600000010010000,DragonRise Inc. Generic USB Joystick,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b3,y:b0,platform:Linux,",
+"030000004f04000004b3000010010000,Dual Power 2,a:b0,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b1,y:b3,platform:Linux,",
+"030000006f0e00003001000001010000,EA Sports PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000341a000005f7000010010000,GameCube {HuiJia USB box},a:b1,b:b2,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:a4,rightx:a5,righty:a2,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000bc2000000055000011010000,GameSir G3w,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"0500000047532047616d657061640000,GameStop Gamepad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"030000006f0e00000104000000010000,Gamestop Logic3 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000008f0e00000800000010010000,Gasia Co. Ltd PS(R) Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"030000006f0e00001304000000010000,Generic X-Box pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000451300000010000010010000,Genius Maxfire Grandias 12,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"03000000f0250000c183000010010000,Goodbetterbest Ltd USB Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"0300000079000000d418000000010000,GPD Win 2 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000007d0400000540000000010000,Gravis Eliminator GamePad Pro,a:b1,b:b2,back:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000280400000140000000010000,Gravis GamePad Pro USB ,a:b1,b:b2,back:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,",
+"030000008f0e00000610000000010000,GreenAsia Electronics 4Axes 12Keys GamePad ,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b9,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b10,righttrigger:b5,rightx:a3,righty:a2,start:b11,x:b3,y:b0,platform:Linux,",
+"030000008f0e00001200000010010000,GreenAsia Inc. USB Joystick,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b2,y:b3,platform:Linux,",
+"0500000047532067616d657061640000,GS gamepad,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"03000000f0250000c383000010010000,GT VX2,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"06000000adde0000efbe000002010000,Hidromancer Game Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000d81400000862000011010000,HitBox (PS3/PC) Analog Mode,a:b1,b:b2,back:b8,guide:b9,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b12,x:b0,y:b3,platform:Linux,",
+"03000000c9110000f055000011010000,HJC Game GAMEPAD,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"03000000632500002605000010010000,HJD-X,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a5,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"030000000d0f00000d00000000010000,hori,a:b0,b:b6,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b3,leftx:b4,lefty:b5,rightshoulder:b7,start:b9,x:b1,y:b2,platform:Linux,",
+"030000000d0f00001000000011010000,HORI CO. LTD. FIGHTING STICK 3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,",
+"030000000d0f0000c100000011010000,HORI CO. LTD. HORIPAD S,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b13,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000000d0f00006a00000011010000,HORI CO. LTD. Real Arcade Pro.4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"030000000d0f00006b00000011010000,HORI CO. LTD. Real Arcade Pro.4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000000d0f00002200000011010000,HORI CO. LTD. REAL ARCADE Pro.V3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,",
+"030000000d0f00008500000010010000,HORI Fighting Commander,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000000d0f00008600000002010000,Hori Fighting Commander,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"030000000d0f00005f00000011010000,Hori Fighting Commander 4 (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000000d0f00005e00000011010000,Hori Fighting Commander 4 (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000ad1b000001f5000033050000,Hori Pad EX Turbo 2,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000000d0f00009200000011010000,Hori Pokken Tournament DX Pro Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,",
+"030000000d0f0000aa00000011010000,HORI Real Arcade Pro,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"030000000d0f0000d800000072056800,HORI Real Arcade Pro S,a:b0,b:b1,back:b4,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b5,leftshoulder:b9,leftstick:b7,lefttrigger:a4,leftx:a0,lefty:a1,rightshoulder:b10,rightstick:b8,righttrigger:a5,rightx:a2,righty:a3,start:b6,x:b2,y:b3,platform:Linux,",
+"030000000d0f00001600000000010000,Hori Real Arcade Pro.EX-SE (Xbox 360),a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b2,y:b3,platform:Linux,",
+"030000000d0f00006e00000011010000,HORIPAD 4 (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000000d0f00006600000011010000,HORIPAD 4 (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"030000000d0f0000ee00000011010000,HORIPAD mini4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"030000000d0f00006700000001010000,HORIPAD ONE,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000008f0e00001330000010010000,HuiJia SNES Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,rightshoulder:b7,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000242e00008816000001010000,Hyperkin X91,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000830500006020000010010000,iBuffalo SNES Controller,a:b1,b:b0,back:b6,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b7,x:b3,y:b2,platform:Linux,",
+"050000006964726f69643a636f6e0000,idroid:con,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000b50700001503000010010000,impact,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Linux,",
+"03000000d80400008200000003000000,IMS PCU#0 Gamepad Interface,a:b1,b:b0,back:b4,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,start:b5,x:b3,y:b2,platform:Linux,",
+"03000000fd0500000030000000010000,InterAct GoPad I-73000 (Fighting Game Layout),a:b3,b:b4,back:b6,leftx:a0,lefty:a1,rightshoulder:b2,righttrigger:b5,start:b7,x:b0,y:b1,platform:Linux,",
+"0500000049190000020400001b010000,Ipega PG-9069 - Bluetooth Gamepad,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b161,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"03000000632500007505000011010000,Ipega PG-9099 - Bluetooth Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"030000006e0500000320000010010000,JC-U3613M - DirectInput Mode,a:b2,b:b3,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a2,righty:a3,start:b11,x:b0,y:b1,platform:Linux,",
+"03000000300f00001001000010010000,Jess Tech Dual Analog Rumble Pad,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Linux,",
+"03000000300f00000b01000010010000,Jess Tech GGE909 PC Recoil Pad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000ba2200002010000001010000,Jess Technology USB Game Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Linux,",
+"030000007e0500000620000001000000,Joy-Con (L),+leftx:h0.2,+lefty:h0.4,-leftx:h0.8,-lefty:h0.1,a:b0,b:b1,back:b13,leftshoulder:b4,leftstick:b10,rightshoulder:b5,start:b8,x:b2,y:b3,platform:Linux,",
+"050000007e0500000620000001000000,Joy-Con (L),+leftx:h0.2,+lefty:h0.4,-leftx:h0.8,-lefty:h0.1,a:b0,b:b1,back:b13,leftshoulder:b4,leftstick:b10,rightshoulder:b5,start:b8,x:b2,y:b3,platform:Linux,",
+"030000007e0500000720000001000000,Joy-Con (R),+leftx:h0.2,+lefty:h0.4,-leftx:h0.8,-lefty:h0.1,a:b0,b:b1,back:b12,leftshoulder:b4,leftstick:b11,rightshoulder:b5,start:b9,x:b2,y:b3,platform:Linux,",
+"050000007e0500000720000001000000,Joy-Con (R),+leftx:h0.2,+lefty:h0.4,-leftx:h0.8,-lefty:h0.1,a:b0,b:b1,back:b12,leftshoulder:b4,leftstick:b11,rightshoulder:b5,start:b9,x:b2,y:b3,platform:Linux,",
+"03000000bd12000003c0000010010000,Joypad Alpha Shock,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000242f00002d00000011010000,JYS Wireless Adapter,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000242f00008a00000011010000,JYS Wireless Adapter,a:b1,b:b4,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b0,y:b3,platform:Linux,",
+"030000006f0e00000103000000020000,Logic3 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006d040000d1ca000000000000,Logitech ChillStream,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006d04000019c2000010010000,Logitech Cordless RumblePad 2,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006d04000016c2000010010000,Logitech Dual Action,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006d04000016c2000011010000,Logitech Dual Action,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006d0400001dc2000014400000,Logitech F310 Gamepad (XInput),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006d0400001ec2000019200000,Logitech F510 Gamepad (XInput),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006d0400001ec2000020200000,Logitech F510 Gamepad (XInput),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006d04000019c2000011010000,Logitech F710 Gamepad (DInput),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006d0400001fc2000005030000,Logitech F710 Gamepad (XInput),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006d0400000ac2000010010000,Logitech Inc. WingMan RumblePad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,lefttrigger:b7,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b2,rightx:a3,righty:a4,x:b3,y:b4,platform:Linux,",
+"030000006d04000018c2000010010000,Logitech RumblePad 2,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006d04000011c2000010010000,Logitech WingMan Cordless RumblePad,a:b0,b:b1,back:b2,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b5,leftshoulder:b6,lefttrigger:b9,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b10,rightx:a3,righty:a4,start:b8,x:b3,y:b4,platform:Linux,",
+"050000004d4f435554452d3035305800,M54-PC,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"05000000380700006652000025010000,Mad Catz C.T.R.L.R ,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000380700005032000011010000,Mad Catz FightPad PRO (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000380700005082000011010000,Mad Catz FightPad PRO (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000ad1b00002ef0000090040000,Mad Catz Fightpad SFxT,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,lefttrigger:a2,rightshoulder:b5,righttrigger:a5,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000380700008034000011010000,Mad Catz fightstick (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000380700008084000011010000,Mad Catz fightstick (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000380700008433000011010000,Mad Catz FightStick TE S+ (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000380700008483000011010000,Mad Catz FightStick TE S+ (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000380700001647000010040000,Mad Catz Wired Xbox 360 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000380700003847000090040000,Mad Catz Wired Xbox 360 Controller (SFIV),a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"03000000ad1b000016f0000090040000,Mad Catz Xbox 360 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000380700001888000010010000,MadCatz PC USB Wired Stick 8818,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000380700003888000010010000,MadCatz PC USB Wired Stick 8838,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:a0,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000242f0000f700000001010000,Magic-S Pro,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000120c00000500000000010000,Manta Dualshock 2,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b2,y:b3,platform:Linux,",
+"03000000790000004418000010010000,Mayflash GameCube Controller,a:b1,b:b0,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:a4,rightx:a5,righty:a2,start:b9,x:b2,y:b3,platform:Linux,",
+"03000000790000004318000010010000,Mayflash GameCube Controller Adapter,a:b1,b:b2,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:a4,rightx:a5,righty:a2,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000242f00007300000011010000,Mayflash Magic NS,a:b1,b:b4,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b0,y:b3,platform:Linux,",
+"0300000079000000d218000011010000,Mayflash Magic NS,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000d620000010a7000011010000,Mayflash Magic NS,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"0300000025090000e803000001010000,Mayflash Wii Classic Controller,a:b1,b:b0,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:a4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:a5,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b2,platform:Linux,",
+"03000000780000000600000010010000,Microntek USB Joystick,a:b2,b:b1,back:b8,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,start:b9,x:b3,y:b0,platform:Linux,",
+"030000005e0400000e00000000010000,Microsoft SideWinder,a:b0,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,rightshoulder:b7,start:b8,x:b3,y:b4,platform:Linux,",
+"030000005e0400008e02000004010000,Microsoft X-Box 360 pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e0400008e02000062230000,Microsoft X-Box 360 pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"050000005e040000050b000003090000,Microsoft X-Box One Elite 2 pad,a:b0,b:b1,back:b17,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a6,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a5,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"030000005e040000e302000003020000,Microsoft X-Box One Elite pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e040000d102000001010000,Microsoft X-Box One pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e040000dd02000003020000,Microsoft X-Box One pad (Firmware 2015),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e040000d102000003020000,Microsoft X-Box One pad v2,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e0400008502000000010000,Microsoft X-Box pad (Japan),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b5,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b2,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b3,y:b4,platform:Linux,",
+"030000005e0400008902000021010000,Microsoft X-Box pad v2 (US),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b5,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b2,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b3,y:b4,platform:Linux,",
+"030000005e040000000b000008040000,Microsoft Xbox One Elite 2 pad - Wired,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e040000ea02000008040000,Microsoft Xbox One S pad - Wired,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000c62400001a53000000010000,Mini PE,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000030000000300000002000000,Miroof,a:b1,b:b0,back:b6,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,start:b7,x:b3,y:b2,platform:Linux,",
+"05000000d6200000e589000001000000,Moga 2 HID,a:b0,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b7,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a3,start:b6,x:b2,y:b3,platform:Linux,",
+"05000000d6200000ad0d000001000000,Moga Pro,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b7,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a3,start:b6,x:b2,y:b3,platform:Linux,",
+"05000000d62000007162000001000000,Moga Pro 2 HID,a:b0,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b7,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a3,start:b6,x:b2,y:b3,platform:Linux,",
+"03000000c62400002b89000011010000,MOGA XP5-A Plus,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"05000000c62400002a89000000010000,MOGA XP5-A Plus,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b22,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"05000000c62400001a89000000010000,MOGA XP5-X Plus,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"03000000250900006688000000010000,MP-8866 Super Dual Box,a:b2,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Linux,",
+"030000006b140000010c000010010000,NACON GC-400ES,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"030000000d0f00000900000010010000,Natec Genesis P44,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000790000004518000010010000,NEXILUX GAMECUBE Controller Adapter,a:b1,b:b0,x:b2,y:b3,start:b9,rightshoulder:b7,dpup:h0.1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,leftx:a0,lefty:a1,rightx:a5,righty:a2,lefttrigger:a3,righttrigger:a4,platform:Linux,",
+"030000001008000001e5000010010000,NEXT SNES Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,righttrigger:b6,start:b9,x:b3,y:b0,platform:Linux,",
+"060000007e0500003713000000000000,Nintendo 3DS,a:b0,b:b1,back:b8,dpdown:b11,dpleft:b12,dpright:b13,dpup:b10,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,rightx:a2,righty:a3,start:b9,x:b3,y:b2,platform:Linux,",
+"060000007e0500000820000000000000,Nintendo Combined Joy-Cons (joycond),a:b0,b:b1,back:b9,dpdown:b15,dpleft:b16,dpright:b17,dpup:b14,guide:b11,leftshoulder:b5,leftstick:b12,lefttrigger:b7,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b13,righttrigger:b8,rightx:a2,righty:a3,start:b10,x:b3,y:b2,platform:Linux,",
+"030000007e0500003703000000016800,Nintendo GameCube Controller,a:b0,b:b2,dpdown:b6,dpleft:b4,dpright:b5,dpup:b7,lefttrigger:a4,leftx:a0,lefty:a1~,rightshoulder:b9,righttrigger:a5,rightx:a2,righty:a3~,start:b8,x:b1,y:b3,platform:Linux,",
+"03000000790000004618000010010000,Nintendo GameCube Controller Adapter,a:b1,b:b0,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,rightx:a5~,righty:a2~,start:b9,x:b2,y:b3,platform:Linux,",
+"050000007e0500000620000001800000,Nintendo Switch Left Joy-Con,a:b9,b:b8,back:b5,leftshoulder:b2,leftstick:b6,leftx:a1,lefty:a0~,rightshoulder:b4,start:b0,x:b7,y:b10,platform:Linux,",
+"030000007e0500000920000011810000,Nintendo Switch Pro Controller,a:b0,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b11,leftshoulder:b5,leftstick:b12,lefttrigger:b7,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b13,righttrigger:b8,rightx:a2,righty:a3,start:b10,x:b3,y:b2,platform:Linux,",
+"050000007e0500000920000001000000,Nintendo Switch Pro Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"050000007e0500000920000001800000,Nintendo Switch Pro Controller,a:b0,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b11,leftshoulder:b5,leftstick:b12,lefttrigger:b7,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b13,righttrigger:b8,rightx:a2,righty:a3,start:b10,x:b3,y:b2,platform:Linux,",
+"050000007e0500000720000001800000,Nintendo Switch Right Joy-Con,a:b1,b:b2,back:b9,leftshoulder:b4,leftstick:b10,leftx:a1~,lefty:a0~,rightshoulder:b6,start:b8,x:b0,y:b3,platform:Linux,",
+"050000007e0500001720000001000000,Nintendo Switch SNES Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,rightshoulder:b5,start:b9,x:b2,y:b3,platform:Linux,",
+"050000007e0500003003000001000000,Nintendo Wii Remote Pro Controller,a:b0,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b16,dpup:b13,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b2,platform:Linux,",
+"05000000010000000100000003000000,Nintendo Wiimote,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"030000000d0500000308000010010000,Nostromo n45 Dual Analog Gamepad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b9,leftshoulder:b4,leftstick:b12,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b10,x:b2,y:b3,platform:Linux,",
+"03000000550900001072000011010000,NVIDIA Controller,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b13,leftshoulder:b4,leftstick:b8,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a4,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000550900001472000011010000,NVIDIA Controller v01.04,a:b0,b:b1,back:b14,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b16,leftshoulder:b4,leftstick:b7,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a5,start:b6,x:b2,y:b3,platform:Linux,",
+"05000000550900001472000001000000,NVIDIA Controller v01.04,a:b0,b:b1,back:b14,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b16,leftshoulder:b4,leftstick:b7,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b8,righttrigger:a4,rightx:a2,righty:a5,start:b6,x:b2,y:b3,platform:Linux,",
+"03000000451300000830000010010000,NYKO CORE,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"19000000010000000100000001010000,odroidgo2_joypad,a:b1,b:b0,dpdown:b7,dpleft:b8,dpright:b9,dpup:b6,guide:b10,leftshoulder:b4,leftstick:b12,lefttrigger:b11,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b13,righttrigger:b14,start:b15,x:b2,y:b3,platform:Linux,",
+"19000000010000000200000011000000,odroidgo2_joypad_v11,a:b1,b:b0,dpdown:b9,dpleft:b10,dpright:b11,dpup:b8,guide:b12,leftshoulder:b4,leftstick:b14,lefttrigger:b13,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b15,righttrigger:b16,start:b17,x:b2,y:b3,platform:Linux,",
+"030000005e0400000202000000010000,Old Xbox pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b5,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b2,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b3,y:b4,platform:Linux,",
+"03000000c0160000dc27000001010000,OnyxSoft Dual JoyDivision,a:b0,b:b1,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b6,x:b2,y:b3,platform:Linux,",
+"05000000362800000100000002010000,OUYA Game Controller,a:b0,b:b3,dpdown:b9,dpleft:b10,dpright:b11,dpup:b8,guide:b14,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,x:b1,y:b2,platform:Linux,",
+"05000000362800000100000003010000,OUYA Game Controller,a:b0,b:b3,dpdown:b9,dpleft:b10,dpright:b11,dpup:b8,guide:b14,leftshoulder:b4,leftstick:b6,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b7,righttrigger:a5,rightx:a3,righty:a4,x:b1,y:b2,platform:Linux,",
+"03000000830500005020000010010000,Padix Co. Ltd. Rockfire PSX/USB Bridge,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a2,righty:a3,start:b11,x:b2,y:b3,platform:Linux,",
+"03000000790000001c18000011010000,PC Game Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000ff1100003133000010010000,PC Game Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"030000006f0e0000b802000001010000,PDP AFTERGLOW Wired Xbox One Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006f0e0000b802000013020000,PDP AFTERGLOW Wired Xbox One Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006f0e00006401000001010000,PDP Battlefield One,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006f0e00008001000011010000,PDP CO. LTD. Faceoff Wired Pro Controller for Nintendo Switch,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006f0e00003101000000010000,PDP EA Sports Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006f0e0000c802000012010000,PDP Kingdom Hearts Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006f0e00008701000011010000,PDP Rock Candy Wired Controller for Nintendo Switch,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b13,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"030000006f0e00000901000011010000,PDP Versus Fighting Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006f0e0000a802000023020000,PDP Wired Controller for Xbox One,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"030000006f0e00008501000011010000,PDP Wired Fight Pad Pro for Nintendo Switch,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"0500000049190000030400001b010000,PG-9099,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"05000000491900000204000000000000,PG-9118,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"030000004c050000da0c000011010000,Playstation Controller,a:b2,b:b1,back:b8,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,start:b9,x:b3,y:b0,platform:Linux,",
+"030000004c0500003713000011010000,PlayStation Vita,a:b1,b:b2,back:b8,dpdown:b13,dpleft:b15,dpright:b14,dpup:b12,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,rightx:a3,righty:a4,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000c62400000053000000010000,PowerA,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000c62400003a54000001010000,PowerA 1428124-01,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000d62000006dca000011010000,PowerA Pro Ex,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000d62000000228000001010000,PowerA Wired Controller for Xbox One,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000c62400001a58000001010000,PowerA Xbox One Cabled,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000c62400001a54000001010000,PowerA Xbox One Mini Wired Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006d040000d2ca000011010000,Precision Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000ff1100004133000010010000,PS2 Controller,a:b2,b:b1,back:b8,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000341a00003608000011010000,PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000004c0500006802000010010000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Linux,",
+"030000004c0500006802000010810000,PS3 Controller,a:b0,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b16,dpup:b13,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"030000004c0500006802000011010000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Linux,",
+"030000004c0500006802000011810000,PS3 Controller,a:b0,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b16,dpup:b13,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"030000006f0e00001402000011010000,PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000008f0e00000300000010010000,PS3 Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"050000004c0500006802000000000000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Linux,",
+"050000004c0500006802000000010000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:a12,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:a13,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Linux,",
+"050000004c0500006802000000800000,PS3 Controller,a:b0,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b16,dpup:b13,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"050000004c0500006802000000810000,PS3 Controller,a:b0,b:b1,back:b8,dpdown:b14,dpleft:b15,dpright:b16,dpup:b13,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"05000000504c415953544154494f4e00,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Linux,",
+"060000004c0500006802000000010000,PS3 Controller,a:b14,b:b13,back:b0,dpdown:b6,dpleft:b7,dpright:b5,dpup:b4,guide:b16,leftshoulder:b10,leftstick:b1,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b11,rightstick:b2,righttrigger:b9,rightx:a2,righty:a3,start:b3,x:b15,y:b12,platform:Linux,",
+"030000004c050000a00b000011010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"030000004c050000a00b000011810000,PS4 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"030000004c050000c405000011010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"030000004c050000c405000011810000,PS4 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"030000004c050000cc09000000010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"030000004c050000cc09000011010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"030000004c050000cc09000011810000,PS4 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"03000000c01100000140000011010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"050000004c050000c405000000010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"050000004c050000c405000000810000,PS4 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"050000004c050000c405000001800000,PS4 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"050000004c050000cc09000000010000,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"050000004c050000cc09000000810000,PS4 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"050000004c050000cc09000001800000,PS4 Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"030000004c050000e60c000011010000,PS5 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,misc1:b13,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"050000004c050000e60c000000010000,PS5 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,misc1:b13,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000ff000000cb01000010010000,PSP,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftx:a0,lefty:a1,rightshoulder:b5,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000300f00001211000011010000,QanBa Arcade JoyStick,a:b2,b:b0,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b5,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b6,start:b9,x:b1,y:b3,platform:Linux,",
+"030000009b2800004200000001010000,Raphnet Technologies Dual NES to USB v2.0,a:b0,b:b1,back:b2,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,start:b3,platform:Linux,",
+"030000009b2800003200000001010000,Raphnet Technologies GC/N64 to USB v3.4,a:b0,b:b7,dpdown:b11,dpleft:b12,dpright:b13,dpup:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b2,righttrigger:b5,rightx:a3,righty:a4,start:b3,x:b1,y:b8,platform:Linux,",
+"030000009b2800006000000001010000,Raphnet Technologies GC/N64 to USB v3.6,a:b0,b:b7,dpdown:b11,dpleft:b12,dpright:b13,dpup:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b2,righttrigger:b5,rightx:a3,righty:a4,start:b3,x:b1,y:b8,platform:Linux,",
+"030000009b2800000300000001010000,raphnet.net 4nes4snes v1.5,a:b0,b:b4,back:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b3,x:b1,y:b5,platform:Linux,",
+"030000008916000001fd000024010000,Razer Onza Classic Edition,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b11,dpright:b12,dpup:b13,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000008916000000fd000024010000,Razer Onza Tournament Edition,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000321500000204000011010000,Razer Panthera (PS3),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000321500000104000011010000,Razer Panthera (PS4),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000321500000810000011010000,Razer Panthera Evo Arcade Stick for PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b13,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000321500000010000011010000,Razer RAIJU,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000321500000507000000010000,Razer Raiju Mobile,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b21,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"03000000321500000011000011010000,Razer Raion Fightpad for PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"030000008916000000fe000024010000,Razer Sabertooth,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000c6240000045d000024010000,Razer Sabertooth,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000c6240000045d000025010000,Razer Sabertooth,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000321500000009000011010000,Razer Serval,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a4,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Linux,",
+"050000003215000000090000163a0000,Razer Serval,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a4,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Linux,",
+"0300000032150000030a000001010000,Razer Wildcat,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000790000001100000010010000,Retrolink SNES Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Linux,",
+"0300000081170000990a000001010000,Retronic Adapter,a:b0,leftx:a0,lefty:a1,platform:Linux,",
+"0300000000f000000300000000010000,RetroPad,a:b1,b:b5,back:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b3,x:b0,y:b4,platform:Linux,",
+"030000006b140000010d000011010000,Revolution Pro Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006b140000130d000011010000,Revolution Pro Controller 3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006f0e00001f01000000010000,Rock Candy,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000006f0e00001e01000011010000,Rock Candy PS3 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006f0e00004601000001010000,Rock Candy Xbox One Controller,a:b0,b:b1,back:b6,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000a306000023f6000011010000,Saitek Cyborg V.1 Game Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000a30600001005000000010000,Saitek P150,a:b0,b:b1,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b7,lefttrigger:b6,rightshoulder:b2,righttrigger:b5,x:b3,y:b4,platform:Linux,",
+"03000000a30600000701000000010000,Saitek P220,a:b2,b:b3,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b6,lefttrigger:b7,rightshoulder:b4,righttrigger:b5,x:b0,y:b1,platform:Linux,",
+"03000000a30600000cff000010010000,Saitek P2500 Force Rumble Pad,a:b2,b:b3,back:b11,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a3,righty:a2,start:b10,x:b0,y:b1,platform:Linux,",
+"03000000a30600000c04000011010000,Saitek P2900 Wireless Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b9,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b12,x:b0,y:b3,platform:Linux,",
+"03000000300f00001201000010010000,Saitek P380,a:b2,b:b3,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b0,y:b1,platform:Linux,",
+"03000000a30600000901000000010000,Saitek P880,a:b2,b:b3,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b8,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:b7,rightx:a3,righty:a2,x:b0,y:b1,platform:Linux,",
+"03000000a30600000b04000000010000,Saitek P990 Dual Analog Pad,a:b1,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a2,start:b8,x:b0,y:b3,platform:Linux,",
+"03000000a306000018f5000010010000,Saitek PLC Saitek P3200 Rumble Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000a306000020f6000011010000,Saitek PS2700 Rumble Pad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a4,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000d81d00000e00000010010000,Savior,a:b0,b:b1,back:b8,leftshoulder:b6,leftstick:b10,lefttrigger:b7,leftx:a0,lefty:a1,rightshoulder:b2,rightstick:b11,righttrigger:b3,start:b9,x:b4,y:b5,platform:Linux,",
+"03000000f025000021c1000010010000,ShanWan Gioteck PS3 Wired Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000632500007505000010010000,SHANWAN PS3/PC Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000bc2000000055000010010000,ShanWan PS3/PC Wired GamePad,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"030000005f140000c501000010010000,SHANWAN Trust Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000632500002305000010010000,ShanWan USB Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000341a00000908000010010000,SL-6566,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"030000004c050000e60c000011810000,Sony DualSense,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"050000004c050000e60c000000810000,Sony DualSense ,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b11,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b12,righttrigger:a5,rightx:a3,righty:a4,start:b9,x:b3,y:b2,platform:Linux,",
+"03000000250900000500000000010000,Sony PS2 pad with SmartJoy adapter,a:b2,b:b1,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Linux,",
+"030000005e0400008e02000073050000,Speedlink TORID Wireless Gamepad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e0400008e02000020200000,SpeedLink XEOX Pro Analog Gamepad pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000d11800000094000011010000,Stadia Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a4,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000de2800000112000001000000,Steam Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,paddle1:b11,paddle2:b10,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000de2800000211000001000000,Steam Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,paddle1:b11,paddle2:b10,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000de2800000211000011010000,Steam Controller,a:b2,b:b3,back:b10,dpdown:b18,dpleft:b19,dpright:b20,dpup:b17,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,paddle1:b15,paddle2:b16,rightshoulder:b7,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b5,platform:Linux,",
+"03000000de2800004211000001000000,Steam Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,paddle1:b11,paddle2:b10,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000de2800004211000011010000,Steam Controller,a:b2,b:b3,back:b10,dpdown:b18,dpleft:b19,dpright:b20,dpup:b17,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:b8,leftx:a0,lefty:a1,paddle1:b15,paddle2:b16,rightshoulder:b7,righttrigger:b9,rightx:a2,righty:a3,start:b11,x:b4,y:b5,platform:Linux,",
+"03000000de280000fc11000001000000,Steam Controller,a:b0,b:b1,back:b6,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"05000000de2800000212000001000000,Steam Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,paddle1:b11,paddle2:b10,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:Linux,",
+"05000000de2800000511000001000000,Steam Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,paddle1:b11,paddle2:b10,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:Linux,",
+"05000000de2800000611000001000000,Steam Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,paddle1:b11,paddle2:b10,rightshoulder:b5,righttrigger:a3,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000de280000ff11000001000000,Steam Virtual Gamepad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000381000003014000075010000,SteelSeries Stratus Duo,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000381000003114000075010000,SteelSeries Stratus Duo,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"0500000011010000311400001b010000,SteelSeries Stratus Duo,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b32,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"05000000110100001914000009010000,SteelSeries Stratus XL,a:b0,b:b1,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"03000000ad1b000038f0000090040000,Street Fighter IV FightStick TE,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000003b07000004a1000000010000,Suncom SFX Plus for USB,a:b0,b:b2,back:b7,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b9,righttrigger:b5,start:b8,x:b1,y:b3,platform:Linux,",
+"03000000666600000488000000010000,Super Joy Box 5 Pro,a:b2,b:b1,back:b9,dpdown:b14,dpleft:b15,dpright:b13,dpup:b12,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b3,y:b0,platform:Linux,",
+"0300000000f00000f100000000010000,Super RetroPort,a:b1,b:b5,back:b2,leftshoulder:b6,leftx:a0,lefty:a1,rightshoulder:b7,start:b3,x:b0,y:b4,platform:Linux,",
+"03000000457500002211000010010000,SZMY-POWER CO. LTD. GAMEPAD,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"030000008f0e00000d31000010010000,SZMY-POWER CO. LTD. GAMEPAD 3 TURBO,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000008f0e00001431000010010000,SZMY-POWER CO. LTD. PS3 gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000004f04000020b3000010010000,Thrustmaster 2 in 1 DT,a:b0,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b1,y:b3,platform:Linux,",
+"030000004f04000015b3000010010000,Thrustmaster Dual Analog 4,a:b0,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b1,y:b3,platform:Linux,",
+"030000004f04000023b3000000010000,Thrustmaster Dual Trigger 3-in-1,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"030000004f0400000ed0000011010000,ThrustMaster eSwap PRO Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000b50700000399000000010000,Thrustmaster Firestorm Digital 2,a:b2,b:b4,back:b11,leftshoulder:b6,leftstick:b10,lefttrigger:b7,leftx:a0,lefty:a1,rightshoulder:b8,rightstick:b0,righttrigger:b9,start:b1,x:b3,y:b5,platform:Linux,",
+"030000004f04000003b3000010010000,Thrustmaster Firestorm Dual Analog 2,a:b0,b:b2,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b8,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b9,rightx:a2,righty:a3,x:b1,y:b3,platform:Linux,",
+"030000004f04000000b3000010010000,Thrustmaster Firestorm Dual Power,a:b0,b:b2,back:b9,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b11,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b12,righttrigger:b7,rightx:a2,righty:a3,start:b10,x:b1,y:b3,platform:Linux,",
+"030000004f04000026b3000002040000,Thrustmaster Gamepad GP XID,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000c6240000025b000002020000,Thrustmaster GPX Gamepad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000004f04000008d0000000010000,Thrustmaster Run N Drive Wireless,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"030000004f04000009d0000000010000,Thrustmaster Run N Drive Wireless PS3,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000004f04000007d0000000010000,Thrustmaster T Mini Wireless,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,platform:Linux,",
+"030000004f04000012b3000010010000,Thrustmaster vibrating gamepad,a:b0,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b5,leftx:a0,lefty:a1,rightshoulder:b6,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b1,y:b3,platform:Linux,",
+"03000000bd12000015d0000010010000,Tomee SNES USB Controller,a:b2,b:b1,back:b8,dpdown:+a1,dpleft:-a0,dpright:+a0,dpup:-a1,leftshoulder:b4,rightshoulder:b5,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000d814000007cd000011010000,Toodles 2008 Chimp PC/PS3,a:b0,b:b1,back:b8,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,start:b9,x:b3,y:b2,platform:Linux,",
+"030000005e0400008e02000070050000,Torid,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000c01100000591000011010000,Torid,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000100800000100000010010000,Twin USB PS2 Adapter,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000100800000300000010010000,USB Gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000790000000600000007010000,USB gamepad,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a3,righty:a4,start:b9,x:b3,y:b0,platform:Linux,",
+"03000000790000001100000000010000,USB Gamepad1,a:b2,b:b1,back:b8,dpdown:a0,dpleft:a1,dpright:a2,dpup:a4,start:b9,platform:Linux,",
+"030000006f0e00000302000011010000,Victrix Pro Fight Stick for PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,",
+"030000006f0e00000702000011010000,Victrix Pro Fight Stick for PS4,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,rightshoulder:b5,righttrigger:b7,start:b9,x:b0,y:b3,platform:Linux,",
+"05000000ac0500003232000001000000,VR-BOX,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a3,righty:a2,start:b9,x:b2,y:b3,platform:Linux,",
+"03000000791d00000103000010010000,Wii Classic Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b6,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,righttrigger:b5,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"050000000d0f0000f600000001000000,Wireless HORIPAD Switch Pro Controller,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"030000005e0400008e02000010010000,X360 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e0400008e02000014010000,X360 Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e0400001907000000010000,X360 Wireless Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b11,dpright:b12,dpup:b13,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e0400009102000007010000,X360 Wireless Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b11,dpright:b12,dpup:b13,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e040000a102000000010000,X360 Wireless Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b11,dpright:b12,dpup:b13,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e040000a102000007010000,X360 Wireless Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"0000000058626f782033363020576900,Xbox 360 Wireless Controller,a:b0,b:b1,back:b14,dpdown:b11,dpleft:b12,dpright:b13,dpup:b10,guide:b7,leftshoulder:b4,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b6,x:b2,y:b3,platform:Linux,",
+"030000005e040000a102000014010000,Xbox 360 Wireless Receiver (XBOX),a:b0,b:b1,back:b6,dpdown:b14,dpleft:b11,dpright:b12,dpup:b13,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"0000000058626f782047616d65706100,Xbox Gamepad (userspace driver),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a4,rightx:a2,righty:a3,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e040000d102000002010000,Xbox One Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"050000005e040000fd02000030110000,Xbox One Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"050000005e040000050b000002090000,Xbox One Elite Series 2,a:b0,b:b1,back:b136,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b6,leftstick:b13,lefttrigger:a6,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a5,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"030000005e040000ea02000000000000,Xbox One Wireless Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"050000005e040000e002000003090000,Xbox One Wireless Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b10,leftshoulder:b4,leftstick:b8,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b9,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"050000005e040000fd02000003090000,Xbox One Wireless Controller,a:b0,b:b1,back:b15,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b16,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"030000005e040000ea02000001030000,Xbox One Wireless Controller (Model 1708),a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e040000120b000001050000,Xbox Series Controller,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e040000130b000005050000,Xbox Series Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"050000005e040000130b000001050000,Xbox Series Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"050000005e040000130b000005050000,Xbox Series Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b6,leftstick:b13,lefttrigger:a5,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a4,rightx:a2,righty:a3,start:b11,x:b3,y:b4,platform:Linux,",
+"030000005e040000120b000005050000,XBox Series pad,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"030000005e0400008e02000000010000,xbox360 Wireless EasySMX,a:b0,b:b1,back:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,platform:Linux,",
+"03000000450c00002043000010010000,XEOX Gamepad SL-6556-BK,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,platform:Linux,",
+"03000000ac0500005b05000010010000,Xiaoji Gamesir-G3w,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b3,y:b0,platform:Linux,",
+"05000000172700004431000029010000,XiaoMi Game Controller,a:b0,b:b1,back:b10,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b20,leftshoulder:b6,leftstick:b13,lefttrigger:a7,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b14,righttrigger:a6,rightx:a2,righty:a5,start:b11,x:b3,y:b4,platform:Linux,",
+"03000000c0160000e105000001010000,Xin-Mo Xin-Mo Dual Arcade,a:b4,b:b3,back:b6,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,guide:b9,leftshoulder:b2,leftx:a0,lefty:a1,rightshoulder:b5,start:b7,x:b1,y:b0,platform:Linux,",
+"03000000120c0000100e000011010000,ZEROPLUS P4 Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+"03000000120c0000101e000011010000,ZEROPLUS P4 Wired Gamepad,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,platform:Linux,",
+#endif // GLFW_BUILD_LINUX_JOYSTICK
+};
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/mappings.h.in b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/mappings.h.in
new file mode 100644
index 000000000000..99d1833093a3
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/mappings.h.in
@@ -0,0 +1,82 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+// As mappings.h.in, this file is used by CMake to produce the mappings.h
+// header file.  If you are adding a GLFW specific gamepad mapping, this is
+// where to put it.
+//========================================================================
+// As mappings.h, this provides all pre-defined gamepad mappings, including
+// all available in SDL_GameControllerDB.  Do not edit this file.  Any gamepad
+// mappings not specific to GLFW should be submitted to SDL_GameControllerDB.
+// This file can be re-generated from mappings.h.in and the upstream
+// gamecontrollerdb.txt with the 'update_mappings' CMake target.
+//========================================================================
+
+// All gamepad mappings not labeled GLFW are copied from the
+// SDL_GameControllerDB project under the following license:
+//
+// Simple DirectMedia Layer
+// Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
+//
+// This software is provided 'as-is', without any express or implied warranty.
+// In no event will the authors be held liable for any damages arising from the
+// use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not be
+//    misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source distribution.
+
+const char* _glfwDefaultMappings[] =
+{
+#if defined(_GLFW_WIN32)
+@GLFW_WIN32_MAPPINGS@
+"78696e70757401000000000000000000,XInput Gamepad (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757402000000000000000000,XInput Wheel (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757403000000000000000000,XInput Arcade Stick (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757404000000000000000000,XInput Flight Stick (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757405000000000000000000,XInput Dance Pad (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757406000000000000000000,XInput Guitar (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757408000000000000000000,XInput Drum Kit (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+#endif // _GLFW_WIN32
+
+#if defined(_GLFW_COCOA)
+@GLFW_COCOA_MAPPINGS@
+#endif // _GLFW_COCOA
+
+#if defined(GLFW_BUILD_LINUX_JOYSTICK)
+@GLFW_LINUX_MAPPINGS@
+#endif // GLFW_BUILD_LINUX_JOYSTICK
+};
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/monitor.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/monitor.c
new file mode 100644
index 000000000000..cc95efb64a41
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/monitor.c
@@ -0,0 +1,555 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <assert.h>
+#include <math.h>
+#include <float.h>
+#include <string.h>
+#include <stdlib.h>
+#include <limits.h>
+
+
+// Lexically compare video modes, used by qsort
+//
+static int compareVideoModes(const void* fp, const void* sp)
+{
+    const GLFWvidmode* fm = fp;
+    const GLFWvidmode* sm = sp;
+    const int fbpp = fm->redBits + fm->greenBits + fm->blueBits;
+    const int sbpp = sm->redBits + sm->greenBits + sm->blueBits;
+    const int farea = fm->width * fm->height;
+    const int sarea = sm->width * sm->height;
+
+    // First sort on color bits per pixel
+    if (fbpp != sbpp)
+        return fbpp - sbpp;
+
+    // Then sort on screen area
+    if (farea != sarea)
+        return farea - sarea;
+
+    // Then sort on width
+    if (fm->width != sm->width)
+        return fm->width - sm->width;
+
+    // Lastly sort on refresh rate
+    return fm->refreshRate - sm->refreshRate;
+}
+
+// Retrieves the available modes for the specified monitor
+//
+static GLFWbool refreshVideoModes(_GLFWmonitor* monitor)
+{
+    int modeCount;
+    GLFWvidmode* modes;
+
+    if (monitor->modes)
+        return GLFW_TRUE;
+
+    modes = _glfw.platform.getVideoModes(monitor, &modeCount);
+    if (!modes)
+        return GLFW_FALSE;
+
+    qsort(modes, modeCount, sizeof(GLFWvidmode), compareVideoModes);
+
+    _glfw_free(monitor->modes);
+    monitor->modes = modes;
+    monitor->modeCount = modeCount;
+
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                         GLFW event API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+// Notifies shared code of a monitor connection or disconnection
+//
+void _glfwInputMonitor(_GLFWmonitor* monitor, int action, int placement)
+{
+    assert(monitor != NULL);
+    assert(action == GLFW_CONNECTED || action == GLFW_DISCONNECTED);
+    assert(placement == _GLFW_INSERT_FIRST || placement == _GLFW_INSERT_LAST);
+
+    if (action == GLFW_CONNECTED)
+    {
+        _glfw.monitorCount++;
+        _glfw.monitors =
+            _glfw_realloc(_glfw.monitors,
+                          sizeof(_GLFWmonitor*) * _glfw.monitorCount);
+
+        if (placement == _GLFW_INSERT_FIRST)
+        {
+            memmove(_glfw.monitors + 1,
+                    _glfw.monitors,
+                    ((size_t) _glfw.monitorCount - 1) * sizeof(_GLFWmonitor*));
+            _glfw.monitors[0] = monitor;
+        }
+        else
+            _glfw.monitors[_glfw.monitorCount - 1] = monitor;
+    }
+    else if (action == GLFW_DISCONNECTED)
+    {
+        int i;
+        _GLFWwindow* window;
+
+        for (window = _glfw.windowListHead;  window;  window = window->next)
+        {
+            if (window->monitor == monitor)
+            {
+                int width, height, xoff, yoff;
+                _glfw.platform.getWindowSize(window, &width, &height);
+                _glfw.platform.setWindowMonitor(window, NULL, 0, 0, width, height, 0);
+                _glfw.platform.getWindowFrameSize(window, &xoff, &yoff, NULL, NULL);
+                _glfw.platform.setWindowPos(window, xoff, yoff);
+            }
+        }
+
+        for (i = 0;  i < _glfw.monitorCount;  i++)
+        {
+            if (_glfw.monitors[i] == monitor)
+            {
+                _glfw.monitorCount--;
+                memmove(_glfw.monitors + i,
+                        _glfw.monitors + i + 1,
+                        ((size_t) _glfw.monitorCount - i) * sizeof(_GLFWmonitor*));
+                break;
+            }
+        }
+    }
+
+    if (_glfw.callbacks.monitor)
+        _glfw.callbacks.monitor((GLFWmonitor*) monitor, action);
+
+    if (action == GLFW_DISCONNECTED)
+        _glfwFreeMonitor(monitor);
+}
+
+// Notifies shared code that a full screen window has acquired or released
+// a monitor
+//
+void _glfwInputMonitorWindow(_GLFWmonitor* monitor, _GLFWwindow* window)
+{
+    assert(monitor != NULL);
+    monitor->window = window;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Allocates and returns a monitor object with the specified name and dimensions
+//
+_GLFWmonitor* _glfwAllocMonitor(const char* name, int widthMM, int heightMM)
+{
+    _GLFWmonitor* monitor = _glfw_calloc(1, sizeof(_GLFWmonitor));
+    monitor->widthMM = widthMM;
+    monitor->heightMM = heightMM;
+
+    strncpy(monitor->name, name, sizeof(monitor->name) - 1);
+
+    return monitor;
+}
+
+// Frees a monitor object and any data associated with it
+//
+void _glfwFreeMonitor(_GLFWmonitor* monitor)
+{
+    if (monitor == NULL)
+        return;
+
+    _glfw.platform.freeMonitor(monitor);
+
+    _glfwFreeGammaArrays(&monitor->originalRamp);
+    _glfwFreeGammaArrays(&monitor->currentRamp);
+
+    _glfw_free(monitor->modes);
+    _glfw_free(monitor);
+}
+
+// Allocates red, green and blue value arrays of the specified size
+//
+void _glfwAllocGammaArrays(GLFWgammaramp* ramp, unsigned int size)
+{
+    ramp->red = _glfw_calloc(size, sizeof(unsigned short));
+    ramp->green = _glfw_calloc(size, sizeof(unsigned short));
+    ramp->blue = _glfw_calloc(size, sizeof(unsigned short));
+    ramp->size = size;
+}
+
+// Frees the red, green and blue value arrays and clears the struct
+//
+void _glfwFreeGammaArrays(GLFWgammaramp* ramp)
+{
+    _glfw_free(ramp->red);
+    _glfw_free(ramp->green);
+    _glfw_free(ramp->blue);
+
+    memset(ramp, 0, sizeof(GLFWgammaramp));
+}
+
+// Chooses the video mode most closely matching the desired one
+//
+const GLFWvidmode* _glfwChooseVideoMode(_GLFWmonitor* monitor,
+                                        const GLFWvidmode* desired)
+{
+    int i;
+    unsigned int sizeDiff, leastSizeDiff = UINT_MAX;
+    unsigned int rateDiff, leastRateDiff = UINT_MAX;
+    unsigned int colorDiff, leastColorDiff = UINT_MAX;
+    const GLFWvidmode* current;
+    const GLFWvidmode* closest = NULL;
+
+    if (!refreshVideoModes(monitor))
+        return NULL;
+
+    for (i = 0;  i < monitor->modeCount;  i++)
+    {
+        current = monitor->modes + i;
+
+        colorDiff = 0;
+
+        if (desired->redBits != GLFW_DONT_CARE)
+            colorDiff += abs(current->redBits - desired->redBits);
+        if (desired->greenBits != GLFW_DONT_CARE)
+            colorDiff += abs(current->greenBits - desired->greenBits);
+        if (desired->blueBits != GLFW_DONT_CARE)
+            colorDiff += abs(current->blueBits - desired->blueBits);
+
+        sizeDiff = abs((current->width - desired->width) *
+                       (current->width - desired->width) +
+                       (current->height - desired->height) *
+                       (current->height - desired->height));
+
+        if (desired->refreshRate != GLFW_DONT_CARE)
+            rateDiff = abs(current->refreshRate - desired->refreshRate);
+        else
+            rateDiff = UINT_MAX - current->refreshRate;
+
+        if ((colorDiff < leastColorDiff) ||
+            (colorDiff == leastColorDiff && sizeDiff < leastSizeDiff) ||
+            (colorDiff == leastColorDiff && sizeDiff == leastSizeDiff && rateDiff < leastRateDiff))
+        {
+            closest = current;
+            leastSizeDiff = sizeDiff;
+            leastRateDiff = rateDiff;
+            leastColorDiff = colorDiff;
+        }
+    }
+
+    return closest;
+}
+
+// Performs lexical comparison between two @ref GLFWvidmode structures
+//
+int _glfwCompareVideoModes(const GLFWvidmode* fm, const GLFWvidmode* sm)
+{
+    return compareVideoModes(fm, sm);
+}
+
+// Splits a color depth into red, green and blue bit depths
+//
+void _glfwSplitBPP(int bpp, int* red, int* green, int* blue)
+{
+    int delta;
+
+    // We assume that by 32 the user really meant 24
+    if (bpp == 32)
+        bpp = 24;
+
+    // Convert "bits per pixel" to red, green & blue sizes
+
+    *red = *green = *blue = bpp / 3;
+    delta = bpp - (*red * 3);
+    if (delta >= 1)
+        *green = *green + 1;
+
+    if (delta == 2)
+        *red = *red + 1;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW public API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI GLFWmonitor** glfwGetMonitors(int* count)
+{
+    assert(count != NULL);
+
+    *count = 0;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    *count = _glfw.monitorCount;
+    return (GLFWmonitor**) _glfw.monitors;
+}
+
+GLFWAPI GLFWmonitor* glfwGetPrimaryMonitor(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (!_glfw.monitorCount)
+        return NULL;
+
+    return (GLFWmonitor*) _glfw.monitors[0];
+}
+
+GLFWAPI void glfwGetMonitorPos(GLFWmonitor* handle, int* xpos, int* ypos)
+{
+    if (xpos)
+        *xpos = 0;
+    if (ypos)
+        *ypos = 0;
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    _glfw.platform.getMonitorPos(monitor, xpos, ypos);
+}
+
+GLFWAPI void glfwGetMonitorWorkarea(GLFWmonitor* handle,
+                                    int* xpos, int* ypos,
+                                    int* width, int* height)
+{
+    if (xpos)
+        *xpos = 0;
+    if (ypos)
+        *ypos = 0;
+    if (width)
+        *width = 0;
+    if (height)
+        *height = 0;
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    _glfw.platform.getMonitorWorkarea(monitor, xpos, ypos, width, height);
+}
+
+GLFWAPI void glfwGetMonitorPhysicalSize(GLFWmonitor* handle, int* widthMM, int* heightMM)
+{
+    if (widthMM)
+        *widthMM = 0;
+    if (heightMM)
+        *heightMM = 0;
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    if (widthMM)
+        *widthMM = monitor->widthMM;
+    if (heightMM)
+        *heightMM = monitor->heightMM;
+}
+
+GLFWAPI void glfwGetMonitorContentScale(GLFWmonitor* handle,
+                                        float* xscale, float* yscale)
+{
+    if (xscale)
+        *xscale = 0.f;
+    if (yscale)
+        *yscale = 0.f;
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    _glfw.platform.getMonitorContentScale(monitor, xscale, yscale);
+}
+
+GLFWAPI const char* glfwGetMonitorName(GLFWmonitor* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    return monitor->name;
+}
+
+GLFWAPI void glfwSetMonitorUserPointer(GLFWmonitor* handle, void* pointer)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    monitor->userPointer = pointer;
+}
+
+GLFWAPI void* glfwGetMonitorUserPointer(GLFWmonitor* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    return monitor->userPointer;
+}
+
+GLFWAPI GLFWmonitorfun glfwSetMonitorCallback(GLFWmonitorfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    _GLFW_SWAP(GLFWmonitorfun, _glfw.callbacks.monitor, cbfun);
+    return cbfun;
+}
+
+GLFWAPI const GLFWvidmode* glfwGetVideoModes(GLFWmonitor* handle, int* count)
+{
+    assert(count != NULL);
+
+    *count = 0;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    if (!refreshVideoModes(monitor))
+        return NULL;
+
+    *count = monitor->modeCount;
+    return monitor->modes;
+}
+
+GLFWAPI const GLFWvidmode* glfwGetVideoMode(GLFWmonitor* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    if (!_glfw.platform.getVideoMode(monitor, &monitor->currentMode))
+        return NULL;
+
+    return &monitor->currentMode;
+}
+
+GLFWAPI void glfwSetGamma(GLFWmonitor* handle, float gamma)
+{
+    unsigned int i;
+    unsigned short* values;
+    GLFWgammaramp ramp;
+    const GLFWgammaramp* original;
+    assert(gamma > 0.f);
+    assert(gamma <= FLT_MAX);
+
+    _GLFW_REQUIRE_INIT();
+
+    assert(handle != NULL);
+
+    if (gamma != gamma || gamma <= 0.f || gamma > FLT_MAX)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Invalid gamma value %f", gamma);
+        return;
+    }
+
+    original = glfwGetGammaRamp(handle);
+    if (!original)
+        return;
+
+    values = _glfw_calloc(original->size, sizeof(unsigned short));
+
+    for (i = 0;  i < original->size;  i++)
+    {
+        float value;
+
+        // Calculate intensity
+        value = i / (float) (original->size - 1);
+        // Apply gamma curve
+        value = powf(value, 1.f / gamma) * 65535.f + 0.5f;
+        // Clamp to value range
+        value = fminf(value, 65535.f);
+
+        values[i] = (unsigned short) value;
+    }
+
+    ramp.red = values;
+    ramp.green = values;
+    ramp.blue = values;
+    ramp.size = original->size;
+
+    glfwSetGammaRamp(handle, &ramp);
+    _glfw_free(values);
+}
+
+GLFWAPI const GLFWgammaramp* glfwGetGammaRamp(GLFWmonitor* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    _glfwFreeGammaArrays(&monitor->currentRamp);
+    if (!_glfw.platform.getGammaRamp(monitor, &monitor->currentRamp))
+        return NULL;
+
+    return &monitor->currentRamp;
+}
+
+GLFWAPI void glfwSetGammaRamp(GLFWmonitor* handle, const GLFWgammaramp* ramp)
+{
+    assert(ramp != NULL);
+    assert(ramp->size > 0);
+    assert(ramp->red != NULL);
+    assert(ramp->green != NULL);
+    assert(ramp->blue != NULL);
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    if (ramp->size <= 0)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE,
+                        "Invalid gamma ramp size %i",
+                        ramp->size);
+        return;
+    }
+
+    if (!monitor->originalRamp.size)
+    {
+        if (!_glfw.platform.getGammaRamp(monitor, &monitor->originalRamp))
+            return;
+    }
+
+    _glfw.platform.setGammaRamp(monitor, ramp);
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/nsgl_context.m b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/nsgl_context.m
new file mode 100644
index 000000000000..df7298000595
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/nsgl_context.m
@@ -0,0 +1,384 @@
+//========================================================================
+// GLFW 3.5 macOS - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_COCOA)
+
+#include <unistd.h>
+#include <math.h>
+#include <assert.h>
+
+static void makeContextCurrentNSGL(_GLFWwindow* window)
+{
+    @autoreleasepool {
+
+    if (window)
+        [window->context.nsgl.object makeCurrentContext];
+    else
+        [NSOpenGLContext clearCurrentContext];
+
+    _glfwPlatformSetTls(&_glfw.contextSlot, window);
+
+    } // autoreleasepool
+}
+
+static void swapBuffersNSGL(_GLFWwindow* window)
+{
+    @autoreleasepool {
+
+    // HACK: Simulate vsync with usleep as NSGL swap interval does not apply to
+    //       windows with a non-visible occlusion state
+    if (window->ns.occluded)
+    {
+        int interval = 0;
+        [window->context.nsgl.object getValues:&interval
+                                  forParameter:NSOpenGLContextParameterSwapInterval];
+
+        if (interval > 0)
+        {
+            const double framerate = 60.0;
+            const uint64_t frequency = _glfwPlatformGetTimerFrequency();
+            const uint64_t value = _glfwPlatformGetTimerValue();
+
+            const double elapsed = value / (double) frequency;
+            const double period = 1.0 / framerate;
+            const double delay = period - fmod(elapsed, period);
+
+            usleep(floorl(delay * 1e6));
+        }
+    }
+
+    [window->context.nsgl.object flushBuffer];
+
+    } // autoreleasepool
+}
+
+static void swapIntervalNSGL(int interval)
+{
+    @autoreleasepool {
+
+    _GLFWwindow* window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    assert(window != NULL);
+
+    [window->context.nsgl.object setValues:&interval
+                              forParameter:NSOpenGLContextParameterSwapInterval];
+
+    } // autoreleasepool
+}
+
+static int extensionSupportedNSGL(const char* extension)
+{
+    // There are no NSGL extensions
+    return GLFW_FALSE;
+}
+
+static GLFWglproc getProcAddressNSGL(const char* procname)
+{
+    CFStringRef symbolName = CFStringCreateWithCString(kCFAllocatorDefault,
+                                                       procname,
+                                                       kCFStringEncodingASCII);
+
+    GLFWglproc symbol = CFBundleGetFunctionPointerForName(_glfw.nsgl.framework,
+                                                          symbolName);
+
+    CFRelease(symbolName);
+
+    return symbol;
+}
+
+static void destroyContextNSGL(_GLFWwindow* window)
+{
+    @autoreleasepool {
+
+    [window->context.nsgl.pixelFormat release];
+    window->context.nsgl.pixelFormat = nil;
+
+    [window->context.nsgl.object release];
+    window->context.nsgl.object = nil;
+
+    } // autoreleasepool
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Initialize OpenGL support
+//
+GLFWbool _glfwInitNSGL(void)
+{
+    if (_glfw.nsgl.framework)
+        return GLFW_TRUE;
+
+    _glfw.nsgl.framework =
+        CFBundleGetBundleWithIdentifier(CFSTR("com.apple.opengl"));
+    if (_glfw.nsgl.framework == NULL)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "NSGL: Failed to locate OpenGL framework");
+        return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+// Terminate OpenGL support
+//
+void _glfwTerminateNSGL(void)
+{
+}
+
+// Create the OpenGL context
+//
+GLFWbool _glfwCreateContextNSGL(_GLFWwindow* window,
+                                const _GLFWctxconfig* ctxconfig,
+                                const _GLFWfbconfig* fbconfig)
+{
+    if (ctxconfig->client == GLFW_OPENGL_ES_API)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "NSGL: OpenGL ES is not available via NSGL");
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->major > 2)
+    {
+        if (ctxconfig->major == 3 && ctxconfig->minor < 2)
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "NSGL: The targeted version of macOS does not support OpenGL 3.0 or 3.1 but may support 3.2 and above");
+            return GLFW_FALSE;
+        }
+    }
+
+    if (ctxconfig->major >= 3 && ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
+    {
+        _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                        "NSGL: The compatibility profile is not available on macOS");
+        return GLFW_FALSE;
+    }
+
+    // Context robustness modes (GL_KHR_robustness) are not supported by
+    // macOS but are not a hard constraint, so ignore and continue
+
+    // Context release behaviors (GL_KHR_context_flush_control) are not 
+    // supported by macOS but are not a hard constraint, so ignore and continue
+
+    // Debug contexts (GL_KHR_debug) are not supported by macOS but are not
+    // a hard constraint, so ignore and continue
+
+    // No-error contexts (GL_KHR_no_error) are not supported by macOS but
+    // are not a hard constraint, so ignore and continue
+
+#define ADD_ATTRIB(a) \
+{ \
+    assert((size_t) index < sizeof(attribs) / sizeof(attribs[0])); \
+    attribs[index++] = a; \
+}
+#define SET_ATTRIB(a, v) { ADD_ATTRIB(a); ADD_ATTRIB(v); }
+
+    NSOpenGLPixelFormatAttribute attribs[40];
+    int index = 0;
+
+    ADD_ATTRIB(NSOpenGLPFAAccelerated);
+    ADD_ATTRIB(NSOpenGLPFAClosestPolicy);
+
+    if (ctxconfig->nsgl.offline)
+    {
+        ADD_ATTRIB(NSOpenGLPFAAllowOfflineRenderers);
+        // NOTE: This replaces the NSSupportsAutomaticGraphicsSwitching key in
+        //       Info.plist for unbundled applications
+        // HACK: This assumes that NSOpenGLPixelFormat will remain
+        //       a straightforward wrapper of its CGL counterpart
+        ADD_ATTRIB(kCGLPFASupportsAutomaticGraphicsSwitching);
+    }
+
+    if (ctxconfig->major >= 4)
+    {
+        SET_ATTRIB(NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion4_1Core);
+    }
+    else if (ctxconfig->major >= 3)
+    {
+        SET_ATTRIB(NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core);
+    }
+
+    if (ctxconfig->major <= 2)
+    {
+        if (fbconfig->auxBuffers != GLFW_DONT_CARE)
+            SET_ATTRIB(NSOpenGLPFAAuxBuffers, fbconfig->auxBuffers);
+
+        if (fbconfig->accumRedBits != GLFW_DONT_CARE &&
+            fbconfig->accumGreenBits != GLFW_DONT_CARE &&
+            fbconfig->accumBlueBits != GLFW_DONT_CARE &&
+            fbconfig->accumAlphaBits != GLFW_DONT_CARE)
+        {
+            const int accumBits = fbconfig->accumRedBits +
+                                  fbconfig->accumGreenBits +
+                                  fbconfig->accumBlueBits +
+                                  fbconfig->accumAlphaBits;
+
+            SET_ATTRIB(NSOpenGLPFAAccumSize, accumBits);
+        }
+    }
+
+    if (fbconfig->redBits != GLFW_DONT_CARE &&
+        fbconfig->greenBits != GLFW_DONT_CARE &&
+        fbconfig->blueBits != GLFW_DONT_CARE)
+    {
+        int colorBits = fbconfig->redBits +
+                        fbconfig->greenBits +
+                        fbconfig->blueBits;
+
+        // macOS needs non-zero color size, so set reasonable values
+        if (colorBits == 0)
+            colorBits = 24;
+        else if (colorBits < 15)
+            colorBits = 15;
+
+        SET_ATTRIB(NSOpenGLPFAColorSize, colorBits);
+    }
+
+    if (fbconfig->alphaBits != GLFW_DONT_CARE)
+        SET_ATTRIB(NSOpenGLPFAAlphaSize, fbconfig->alphaBits);
+
+    if (fbconfig->depthBits != GLFW_DONT_CARE)
+        SET_ATTRIB(NSOpenGLPFADepthSize, fbconfig->depthBits);
+
+    if (fbconfig->stencilBits != GLFW_DONT_CARE)
+        SET_ATTRIB(NSOpenGLPFAStencilSize, fbconfig->stencilBits);
+
+    if (fbconfig->stereo)
+    {
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 101200
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "NSGL: Stereo rendering is deprecated");
+        return GLFW_FALSE;
+#else
+        ADD_ATTRIB(NSOpenGLPFAStereo);
+#endif
+    }
+
+    if (fbconfig->doublebuffer)
+        ADD_ATTRIB(NSOpenGLPFADoubleBuffer);
+
+    if (fbconfig->samples != GLFW_DONT_CARE)
+    {
+        if (fbconfig->samples == 0)
+        {
+            SET_ATTRIB(NSOpenGLPFASampleBuffers, 0);
+        }
+        else
+        {
+            SET_ATTRIB(NSOpenGLPFASampleBuffers, 1);
+            SET_ATTRIB(NSOpenGLPFASamples, fbconfig->samples);
+        }
+    }
+
+    // NOTE: All NSOpenGLPixelFormats on the relevant cards support sRGB
+    //       framebuffer, so there's no need (and no way) to request it
+
+    ADD_ATTRIB(0);
+
+#undef ADD_ATTRIB
+#undef SET_ATTRIB
+
+    window->context.nsgl.pixelFormat =
+        [[NSOpenGLPixelFormat alloc] initWithAttributes:attribs];
+    if (window->context.nsgl.pixelFormat == nil)
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "NSGL: Failed to find a suitable pixel format");
+        return GLFW_FALSE;
+    }
+
+    NSOpenGLContext* share = nil;
+
+    if (ctxconfig->share)
+        share = ctxconfig->share->context.nsgl.object;
+
+    window->context.nsgl.object =
+        [[NSOpenGLContext alloc] initWithFormat:window->context.nsgl.pixelFormat
+                                   shareContext:share];
+    if (window->context.nsgl.object == nil)
+    {
+        _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                        "NSGL: Failed to create OpenGL context");
+        return GLFW_FALSE;
+    }
+
+    if (fbconfig->transparent)
+    {
+        GLint opaque = 0;
+        [window->context.nsgl.object setValues:&opaque
+                                  forParameter:NSOpenGLContextParameterSurfaceOpacity];
+    }
+
+    [window->ns.view setWantsBestResolutionOpenGLSurface:window->ns.scaleFramebuffer];
+
+    [window->context.nsgl.object setView:window->ns.view];
+
+    window->context.makeCurrent = makeContextCurrentNSGL;
+    window->context.swapBuffers = swapBuffersNSGL;
+    window->context.swapInterval = swapIntervalNSGL;
+    window->context.extensionSupported = extensionSupportedNSGL;
+    window->context.getProcAddress = getProcAddressNSGL;
+    window->context.destroy = destroyContextNSGL;
+
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI id glfwGetNSGLContext(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(nil);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_COCOA)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE,
+                        "NSGL: Platform not initialized");
+        return nil;
+    }
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->context.source != GLFW_NATIVE_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return nil;
+    }
+
+    return window->context.nsgl.object;
+}
+
+#endif // _GLFW_COCOA
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_init.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_init.c
new file mode 100644
index 000000000000..8c10f5e67c87
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_init.c
@@ -0,0 +1,264 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016 Google Inc.
+// Copyright (c) 2016-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwConnectNull(int platformID, _GLFWplatform* platform)
+{
+    const _GLFWplatform null =
+    {
+        .platformID = GLFW_PLATFORM_NULL,
+        .init = _glfwInitNull,
+        .terminate = _glfwTerminateNull,
+        .getCursorPos = _glfwGetCursorPosNull,
+        .setCursorPos = _glfwSetCursorPosNull,
+        .setCursorMode = _glfwSetCursorModeNull,
+        .setRawMouseMotion = _glfwSetRawMouseMotionNull,
+        .rawMouseMotionSupported = _glfwRawMouseMotionSupportedNull,
+        .createCursor = _glfwCreateCursorNull,
+        .createStandardCursor = _glfwCreateStandardCursorNull,
+        .destroyCursor = _glfwDestroyCursorNull,
+        .setCursor = _glfwSetCursorNull,
+        .getScancodeName = _glfwGetScancodeNameNull,
+        .getKeyScancode = _glfwGetKeyScancodeNull,
+        .setClipboardString = _glfwSetClipboardStringNull,
+        .getClipboardString = _glfwGetClipboardStringNull,
+        .initJoysticks = _glfwInitJoysticksNull,
+        .terminateJoysticks = _glfwTerminateJoysticksNull,
+        .pollJoystick = _glfwPollJoystickNull,
+        .getMappingName = _glfwGetMappingNameNull,
+        .updateGamepadGUID = _glfwUpdateGamepadGUIDNull,
+        .freeMonitor = _glfwFreeMonitorNull,
+        .getMonitorPos = _glfwGetMonitorPosNull,
+        .getMonitorContentScale = _glfwGetMonitorContentScaleNull,
+        .getMonitorWorkarea = _glfwGetMonitorWorkareaNull,
+        .getVideoModes = _glfwGetVideoModesNull,
+        .getVideoMode = _glfwGetVideoModeNull,
+        .getGammaRamp = _glfwGetGammaRampNull,
+        .setGammaRamp = _glfwSetGammaRampNull,
+        .createWindow = _glfwCreateWindowNull,
+        .destroyWindow = _glfwDestroyWindowNull,
+        .setWindowTitle = _glfwSetWindowTitleNull,
+        .setWindowIcon = _glfwSetWindowIconNull,
+        .getWindowPos = _glfwGetWindowPosNull,
+        .setWindowPos = _glfwSetWindowPosNull,
+        .getWindowSize = _glfwGetWindowSizeNull,
+        .setWindowSize = _glfwSetWindowSizeNull,
+        .setWindowSizeLimits = _glfwSetWindowSizeLimitsNull,
+        .setWindowAspectRatio = _glfwSetWindowAspectRatioNull,
+        .getFramebufferSize = _glfwGetFramebufferSizeNull,
+        .getWindowFrameSize = _glfwGetWindowFrameSizeNull,
+        .getWindowContentScale = _glfwGetWindowContentScaleNull,
+        .iconifyWindow = _glfwIconifyWindowNull,
+        .restoreWindow = _glfwRestoreWindowNull,
+        .maximizeWindow = _glfwMaximizeWindowNull,
+        .showWindow = _glfwShowWindowNull,
+        .hideWindow = _glfwHideWindowNull,
+        .requestWindowAttention = _glfwRequestWindowAttentionNull,
+        .focusWindow = _glfwFocusWindowNull,
+        .setWindowMonitor = _glfwSetWindowMonitorNull,
+        .windowFocused = _glfwWindowFocusedNull,
+        .windowIconified = _glfwWindowIconifiedNull,
+        .windowVisible = _glfwWindowVisibleNull,
+        .windowMaximized = _glfwWindowMaximizedNull,
+        .windowHovered = _glfwWindowHoveredNull,
+        .framebufferTransparent = _glfwFramebufferTransparentNull,
+        .getWindowOpacity = _glfwGetWindowOpacityNull,
+        .setWindowResizable = _glfwSetWindowResizableNull,
+        .setWindowDecorated = _glfwSetWindowDecoratedNull,
+        .setWindowFloating = _glfwSetWindowFloatingNull,
+        .setWindowOpacity = _glfwSetWindowOpacityNull,
+        .setWindowMousePassthrough = _glfwSetWindowMousePassthroughNull,
+        .pollEvents = _glfwPollEventsNull,
+        .waitEvents = _glfwWaitEventsNull,
+        .waitEventsTimeout = _glfwWaitEventsTimeoutNull,
+        .postEmptyEvent = _glfwPostEmptyEventNull,
+        .getEGLPlatform = _glfwGetEGLPlatformNull,
+        .getEGLNativeDisplay = _glfwGetEGLNativeDisplayNull,
+        .getEGLNativeWindow = _glfwGetEGLNativeWindowNull,
+        .getRequiredInstanceExtensions = _glfwGetRequiredInstanceExtensionsNull,
+        .getPhysicalDevicePresentationSupport = _glfwGetPhysicalDevicePresentationSupportNull,
+        .createWindowSurface = _glfwCreateWindowSurfaceNull
+    };
+
+    *platform = null;
+    return GLFW_TRUE;
+}
+
+int _glfwInitNull(void)
+{
+    int scancode;
+
+    memset(_glfw.null.keycodes, -1, sizeof(_glfw.null.keycodes));
+    memset(_glfw.null.scancodes, -1, sizeof(_glfw.null.scancodes));
+
+    _glfw.null.keycodes[GLFW_NULL_SC_SPACE]         = GLFW_KEY_SPACE;
+    _glfw.null.keycodes[GLFW_NULL_SC_APOSTROPHE]    = GLFW_KEY_APOSTROPHE;
+    _glfw.null.keycodes[GLFW_NULL_SC_COMMA]         = GLFW_KEY_COMMA;
+    _glfw.null.keycodes[GLFW_NULL_SC_MINUS]         = GLFW_KEY_MINUS;
+    _glfw.null.keycodes[GLFW_NULL_SC_PERIOD]        = GLFW_KEY_PERIOD;
+    _glfw.null.keycodes[GLFW_NULL_SC_SLASH]         = GLFW_KEY_SLASH;
+    _glfw.null.keycodes[GLFW_NULL_SC_0]             = GLFW_KEY_0;
+    _glfw.null.keycodes[GLFW_NULL_SC_1]             = GLFW_KEY_1;
+    _glfw.null.keycodes[GLFW_NULL_SC_2]             = GLFW_KEY_2;
+    _glfw.null.keycodes[GLFW_NULL_SC_3]             = GLFW_KEY_3;
+    _glfw.null.keycodes[GLFW_NULL_SC_4]             = GLFW_KEY_4;
+    _glfw.null.keycodes[GLFW_NULL_SC_5]             = GLFW_KEY_5;
+    _glfw.null.keycodes[GLFW_NULL_SC_6]             = GLFW_KEY_6;
+    _glfw.null.keycodes[GLFW_NULL_SC_7]             = GLFW_KEY_7;
+    _glfw.null.keycodes[GLFW_NULL_SC_8]             = GLFW_KEY_8;
+    _glfw.null.keycodes[GLFW_NULL_SC_9]             = GLFW_KEY_9;
+    _glfw.null.keycodes[GLFW_NULL_SC_SEMICOLON]     = GLFW_KEY_SEMICOLON;
+    _glfw.null.keycodes[GLFW_NULL_SC_EQUAL]         = GLFW_KEY_EQUAL;
+    _glfw.null.keycodes[GLFW_NULL_SC_A]             = GLFW_KEY_A;
+    _glfw.null.keycodes[GLFW_NULL_SC_B]             = GLFW_KEY_B;
+    _glfw.null.keycodes[GLFW_NULL_SC_C]             = GLFW_KEY_C;
+    _glfw.null.keycodes[GLFW_NULL_SC_D]             = GLFW_KEY_D;
+    _glfw.null.keycodes[GLFW_NULL_SC_E]             = GLFW_KEY_E;
+    _glfw.null.keycodes[GLFW_NULL_SC_F]             = GLFW_KEY_F;
+    _glfw.null.keycodes[GLFW_NULL_SC_G]             = GLFW_KEY_G;
+    _glfw.null.keycodes[GLFW_NULL_SC_H]             = GLFW_KEY_H;
+    _glfw.null.keycodes[GLFW_NULL_SC_I]             = GLFW_KEY_I;
+    _glfw.null.keycodes[GLFW_NULL_SC_J]             = GLFW_KEY_J;
+    _glfw.null.keycodes[GLFW_NULL_SC_K]             = GLFW_KEY_K;
+    _glfw.null.keycodes[GLFW_NULL_SC_L]             = GLFW_KEY_L;
+    _glfw.null.keycodes[GLFW_NULL_SC_M]             = GLFW_KEY_M;
+    _glfw.null.keycodes[GLFW_NULL_SC_N]             = GLFW_KEY_N;
+    _glfw.null.keycodes[GLFW_NULL_SC_O]             = GLFW_KEY_O;
+    _glfw.null.keycodes[GLFW_NULL_SC_P]             = GLFW_KEY_P;
+    _glfw.null.keycodes[GLFW_NULL_SC_Q]             = GLFW_KEY_Q;
+    _glfw.null.keycodes[GLFW_NULL_SC_R]             = GLFW_KEY_R;
+    _glfw.null.keycodes[GLFW_NULL_SC_S]             = GLFW_KEY_S;
+    _glfw.null.keycodes[GLFW_NULL_SC_T]             = GLFW_KEY_T;
+    _glfw.null.keycodes[GLFW_NULL_SC_U]             = GLFW_KEY_U;
+    _glfw.null.keycodes[GLFW_NULL_SC_V]             = GLFW_KEY_V;
+    _glfw.null.keycodes[GLFW_NULL_SC_W]             = GLFW_KEY_W;
+    _glfw.null.keycodes[GLFW_NULL_SC_X]             = GLFW_KEY_X;
+    _glfw.null.keycodes[GLFW_NULL_SC_Y]             = GLFW_KEY_Y;
+    _glfw.null.keycodes[GLFW_NULL_SC_Z]             = GLFW_KEY_Z;
+    _glfw.null.keycodes[GLFW_NULL_SC_LEFT_BRACKET]  = GLFW_KEY_LEFT_BRACKET;
+    _glfw.null.keycodes[GLFW_NULL_SC_BACKSLASH]     = GLFW_KEY_BACKSLASH;
+    _glfw.null.keycodes[GLFW_NULL_SC_RIGHT_BRACKET] = GLFW_KEY_RIGHT_BRACKET;
+    _glfw.null.keycodes[GLFW_NULL_SC_GRAVE_ACCENT]  = GLFW_KEY_GRAVE_ACCENT;
+    _glfw.null.keycodes[GLFW_NULL_SC_WORLD_1]       = GLFW_KEY_WORLD_1;
+    _glfw.null.keycodes[GLFW_NULL_SC_WORLD_2]       = GLFW_KEY_WORLD_2;
+    _glfw.null.keycodes[GLFW_NULL_SC_ESCAPE]        = GLFW_KEY_ESCAPE;
+    _glfw.null.keycodes[GLFW_NULL_SC_ENTER]         = GLFW_KEY_ENTER;
+    _glfw.null.keycodes[GLFW_NULL_SC_TAB]           = GLFW_KEY_TAB;
+    _glfw.null.keycodes[GLFW_NULL_SC_BACKSPACE]     = GLFW_KEY_BACKSPACE;
+    _glfw.null.keycodes[GLFW_NULL_SC_INSERT]        = GLFW_KEY_INSERT;
+    _glfw.null.keycodes[GLFW_NULL_SC_DELETE]        = GLFW_KEY_DELETE;
+    _glfw.null.keycodes[GLFW_NULL_SC_RIGHT]         = GLFW_KEY_RIGHT;
+    _glfw.null.keycodes[GLFW_NULL_SC_LEFT]          = GLFW_KEY_LEFT;
+    _glfw.null.keycodes[GLFW_NULL_SC_DOWN]          = GLFW_KEY_DOWN;
+    _glfw.null.keycodes[GLFW_NULL_SC_UP]            = GLFW_KEY_UP;
+    _glfw.null.keycodes[GLFW_NULL_SC_PAGE_UP]       = GLFW_KEY_PAGE_UP;
+    _glfw.null.keycodes[GLFW_NULL_SC_PAGE_DOWN]     = GLFW_KEY_PAGE_DOWN;
+    _glfw.null.keycodes[GLFW_NULL_SC_HOME]          = GLFW_KEY_HOME;
+    _glfw.null.keycodes[GLFW_NULL_SC_END]           = GLFW_KEY_END;
+    _glfw.null.keycodes[GLFW_NULL_SC_CAPS_LOCK]     = GLFW_KEY_CAPS_LOCK;
+    _glfw.null.keycodes[GLFW_NULL_SC_SCROLL_LOCK]   = GLFW_KEY_SCROLL_LOCK;
+    _glfw.null.keycodes[GLFW_NULL_SC_NUM_LOCK]      = GLFW_KEY_NUM_LOCK;
+    _glfw.null.keycodes[GLFW_NULL_SC_PRINT_SCREEN]  = GLFW_KEY_PRINT_SCREEN;
+    _glfw.null.keycodes[GLFW_NULL_SC_PAUSE]         = GLFW_KEY_PAUSE;
+    _glfw.null.keycodes[GLFW_NULL_SC_F1]            = GLFW_KEY_F1;
+    _glfw.null.keycodes[GLFW_NULL_SC_F2]            = GLFW_KEY_F2;
+    _glfw.null.keycodes[GLFW_NULL_SC_F3]            = GLFW_KEY_F3;
+    _glfw.null.keycodes[GLFW_NULL_SC_F4]            = GLFW_KEY_F4;
+    _glfw.null.keycodes[GLFW_NULL_SC_F5]            = GLFW_KEY_F5;
+    _glfw.null.keycodes[GLFW_NULL_SC_F6]            = GLFW_KEY_F6;
+    _glfw.null.keycodes[GLFW_NULL_SC_F7]            = GLFW_KEY_F7;
+    _glfw.null.keycodes[GLFW_NULL_SC_F8]            = GLFW_KEY_F8;
+    _glfw.null.keycodes[GLFW_NULL_SC_F9]            = GLFW_KEY_F9;
+    _glfw.null.keycodes[GLFW_NULL_SC_F10]           = GLFW_KEY_F10;
+    _glfw.null.keycodes[GLFW_NULL_SC_F11]           = GLFW_KEY_F11;
+    _glfw.null.keycodes[GLFW_NULL_SC_F12]           = GLFW_KEY_F12;
+    _glfw.null.keycodes[GLFW_NULL_SC_F13]           = GLFW_KEY_F13;
+    _glfw.null.keycodes[GLFW_NULL_SC_F14]           = GLFW_KEY_F14;
+    _glfw.null.keycodes[GLFW_NULL_SC_F15]           = GLFW_KEY_F15;
+    _glfw.null.keycodes[GLFW_NULL_SC_F16]           = GLFW_KEY_F16;
+    _glfw.null.keycodes[GLFW_NULL_SC_F17]           = GLFW_KEY_F17;
+    _glfw.null.keycodes[GLFW_NULL_SC_F18]           = GLFW_KEY_F18;
+    _glfw.null.keycodes[GLFW_NULL_SC_F19]           = GLFW_KEY_F19;
+    _glfw.null.keycodes[GLFW_NULL_SC_F20]           = GLFW_KEY_F20;
+    _glfw.null.keycodes[GLFW_NULL_SC_F21]           = GLFW_KEY_F21;
+    _glfw.null.keycodes[GLFW_NULL_SC_F22]           = GLFW_KEY_F22;
+    _glfw.null.keycodes[GLFW_NULL_SC_F23]           = GLFW_KEY_F23;
+    _glfw.null.keycodes[GLFW_NULL_SC_F24]           = GLFW_KEY_F24;
+    _glfw.null.keycodes[GLFW_NULL_SC_F25]           = GLFW_KEY_F25;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_0]          = GLFW_KEY_KP_0;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_1]          = GLFW_KEY_KP_1;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_2]          = GLFW_KEY_KP_2;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_3]          = GLFW_KEY_KP_3;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_4]          = GLFW_KEY_KP_4;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_5]          = GLFW_KEY_KP_5;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_6]          = GLFW_KEY_KP_6;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_7]          = GLFW_KEY_KP_7;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_8]          = GLFW_KEY_KP_8;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_9]          = GLFW_KEY_KP_9;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_DECIMAL]    = GLFW_KEY_KP_DECIMAL;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_DIVIDE]     = GLFW_KEY_KP_DIVIDE;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_MULTIPLY]   = GLFW_KEY_KP_MULTIPLY;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_SUBTRACT]   = GLFW_KEY_KP_SUBTRACT;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_ADD]        = GLFW_KEY_KP_ADD;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_ENTER]      = GLFW_KEY_KP_ENTER;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_EQUAL]      = GLFW_KEY_KP_EQUAL;
+    _glfw.null.keycodes[GLFW_NULL_SC_LEFT_SHIFT]    = GLFW_KEY_LEFT_SHIFT;
+    _glfw.null.keycodes[GLFW_NULL_SC_LEFT_CONTROL]  = GLFW_KEY_LEFT_CONTROL;
+    _glfw.null.keycodes[GLFW_NULL_SC_LEFT_ALT]      = GLFW_KEY_LEFT_ALT;
+    _glfw.null.keycodes[GLFW_NULL_SC_LEFT_SUPER]    = GLFW_KEY_LEFT_SUPER;
+    _glfw.null.keycodes[GLFW_NULL_SC_RIGHT_SHIFT]   = GLFW_KEY_RIGHT_SHIFT;
+    _glfw.null.keycodes[GLFW_NULL_SC_RIGHT_CONTROL] = GLFW_KEY_RIGHT_CONTROL;
+    _glfw.null.keycodes[GLFW_NULL_SC_RIGHT_ALT]     = GLFW_KEY_RIGHT_ALT;
+    _glfw.null.keycodes[GLFW_NULL_SC_RIGHT_SUPER]   = GLFW_KEY_RIGHT_SUPER;
+    _glfw.null.keycodes[GLFW_NULL_SC_MENU]          = GLFW_KEY_MENU;
+
+    for (scancode = GLFW_NULL_SC_FIRST;  scancode < GLFW_NULL_SC_LAST;  scancode++)
+    {
+        if (_glfw.null.keycodes[scancode] > 0)
+            _glfw.null.scancodes[_glfw.null.keycodes[scancode]] = scancode;
+    }
+
+    _glfwPollMonitorsNull();
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateNull(void)
+{
+    free(_glfw.null.clipboardString);
+    _glfwTerminateOSMesa();
+    _glfwTerminateEGL();
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_joystick.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_joystick.c
new file mode 100644
index 000000000000..16dc8cf32d81
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_joystick.c
@@ -0,0 +1,56 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwInitJoysticksNull(void)
+{
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateJoysticksNull(void)
+{
+}
+
+GLFWbool _glfwPollJoystickNull(_GLFWjoystick* js, int mode)
+{
+    return GLFW_FALSE;
+}
+
+const char* _glfwGetMappingNameNull(void)
+{
+    return "";
+}
+
+void _glfwUpdateGamepadGUIDNull(char* guid)
+{
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_joystick.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_joystick.h
new file mode 100644
index 000000000000..40a490f90243
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_joystick.h
@@ -0,0 +1,32 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+GLFWbool _glfwInitJoysticksNull(void);
+void _glfwTerminateJoysticksNull(void);
+GLFWbool _glfwPollJoystickNull(_GLFWjoystick* js, int mode);
+const char* _glfwGetMappingNameNull(void);
+void _glfwUpdateGamepadGUIDNull(char* guid);
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_monitor.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_monitor.c
new file mode 100644
index 000000000000..a9b528f03a74
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_monitor.c
@@ -0,0 +1,160 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016 Google Inc.
+// Copyright (c) 2016-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+// The the sole (fake) video mode of our (sole) fake monitor
+//
+static GLFWvidmode getVideoMode(void)
+{
+    GLFWvidmode mode;
+    mode.width = 1920;
+    mode.height = 1080;
+    mode.redBits = 8;
+    mode.greenBits = 8;
+    mode.blueBits = 8;
+    mode.refreshRate = 60;
+    return mode;
+}
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwPollMonitorsNull(void)
+{
+    const float dpi = 141.f;
+    const GLFWvidmode mode = getVideoMode();
+    _GLFWmonitor* monitor = _glfwAllocMonitor("Null SuperNoop 0",
+                                              (int) (mode.width * 25.4f / dpi),
+                                              (int) (mode.height * 25.4f / dpi));
+    _glfwInputMonitor(monitor, GLFW_CONNECTED, _GLFW_INSERT_FIRST);
+}
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwFreeMonitorNull(_GLFWmonitor* monitor)
+{
+    _glfwFreeGammaArrays(&monitor->null.ramp);
+}
+
+void _glfwGetMonitorPosNull(_GLFWmonitor* monitor, int* xpos, int* ypos)
+{
+    if (xpos)
+        *xpos = 0;
+    if (ypos)
+        *ypos = 0;
+}
+
+void _glfwGetMonitorContentScaleNull(_GLFWmonitor* monitor,
+                                     float* xscale, float* yscale)
+{
+    if (xscale)
+        *xscale = 1.f;
+    if (yscale)
+        *yscale = 1.f;
+}
+
+void _glfwGetMonitorWorkareaNull(_GLFWmonitor* monitor,
+                                 int* xpos, int* ypos,
+                                 int* width, int* height)
+{
+    const GLFWvidmode mode = getVideoMode();
+
+    if (xpos)
+        *xpos = 0;
+    if (ypos)
+        *ypos = 10;
+    if (width)
+        *width = mode.width;
+    if (height)
+        *height = mode.height - 10;
+}
+
+GLFWvidmode* _glfwGetVideoModesNull(_GLFWmonitor* monitor, int* found)
+{
+    GLFWvidmode* mode = _glfw_calloc(1, sizeof(GLFWvidmode));
+    *mode = getVideoMode();
+    *found = 1;
+    return mode;
+}
+
+GLFWbool _glfwGetVideoModeNull(_GLFWmonitor* monitor, GLFWvidmode* mode)
+{
+    *mode = getVideoMode();
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwGetGammaRampNull(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
+{
+    if (!monitor->null.ramp.size)
+    {
+        unsigned int i;
+
+        _glfwAllocGammaArrays(&monitor->null.ramp, 256);
+
+        for (i = 0;  i < monitor->null.ramp.size;  i++)
+        {
+            const float gamma = 2.2f;
+            float value;
+            value = i / (float) (monitor->null.ramp.size - 1);
+            value = powf(value, 1.f / gamma) * 65535.f + 0.5f;
+            value = fminf(value, 65535.f);
+
+            monitor->null.ramp.red[i]   = (unsigned short) value;
+            monitor->null.ramp.green[i] = (unsigned short) value;
+            monitor->null.ramp.blue[i]  = (unsigned short) value;
+        }
+    }
+
+    _glfwAllocGammaArrays(ramp, monitor->null.ramp.size);
+    memcpy(ramp->red,   monitor->null.ramp.red,   sizeof(short) * ramp->size);
+    memcpy(ramp->green, monitor->null.ramp.green, sizeof(short) * ramp->size);
+    memcpy(ramp->blue,  monitor->null.ramp.blue,  sizeof(short) * ramp->size);
+    return GLFW_TRUE;
+}
+
+void _glfwSetGammaRampNull(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
+{
+    if (monitor->null.ramp.size != ramp->size)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Null: Gamma ramp size must match current ramp size");
+        return;
+    }
+
+    memcpy(monitor->null.ramp.red,   ramp->red,   sizeof(short) * ramp->size);
+    memcpy(monitor->null.ramp.green, ramp->green, sizeof(short) * ramp->size);
+    memcpy(monitor->null.ramp.blue,  ramp->blue,  sizeof(short) * ramp->size);
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_platform.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_platform.h
new file mode 100644
index 000000000000..dbcb835b8347
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_platform.h
@@ -0,0 +1,282 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016 Google Inc.
+// Copyright (c) 2016-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define GLFW_NULL_WINDOW_STATE          _GLFWwindowNull null;
+#define GLFW_NULL_LIBRARY_WINDOW_STATE  _GLFWlibraryNull null;
+#define GLFW_NULL_MONITOR_STATE         _GLFWmonitorNull null;
+
+#define GLFW_NULL_CONTEXT_STATE
+#define GLFW_NULL_CURSOR_STATE
+#define GLFW_NULL_LIBRARY_CONTEXT_STATE
+
+#define GLFW_NULL_SC_FIRST          GLFW_NULL_SC_SPACE
+#define GLFW_NULL_SC_SPACE          1
+#define GLFW_NULL_SC_APOSTROPHE     2
+#define GLFW_NULL_SC_COMMA          3
+#define GLFW_NULL_SC_MINUS          4
+#define GLFW_NULL_SC_PERIOD         5
+#define GLFW_NULL_SC_SLASH          6
+#define GLFW_NULL_SC_0              7
+#define GLFW_NULL_SC_1              8
+#define GLFW_NULL_SC_2              9
+#define GLFW_NULL_SC_3              10
+#define GLFW_NULL_SC_4              11
+#define GLFW_NULL_SC_5              12
+#define GLFW_NULL_SC_6              13
+#define GLFW_NULL_SC_7              14
+#define GLFW_NULL_SC_8              15
+#define GLFW_NULL_SC_9              16
+#define GLFW_NULL_SC_SEMICOLON      17
+#define GLFW_NULL_SC_EQUAL          18
+#define GLFW_NULL_SC_LEFT_BRACKET   19
+#define GLFW_NULL_SC_BACKSLASH      20
+#define GLFW_NULL_SC_RIGHT_BRACKET  21
+#define GLFW_NULL_SC_GRAVE_ACCENT   22
+#define GLFW_NULL_SC_WORLD_1        23
+#define GLFW_NULL_SC_WORLD_2        24
+#define GLFW_NULL_SC_ESCAPE         25
+#define GLFW_NULL_SC_ENTER          26
+#define GLFW_NULL_SC_TAB            27
+#define GLFW_NULL_SC_BACKSPACE      28
+#define GLFW_NULL_SC_INSERT         29
+#define GLFW_NULL_SC_DELETE         30
+#define GLFW_NULL_SC_RIGHT          31
+#define GLFW_NULL_SC_LEFT           32
+#define GLFW_NULL_SC_DOWN           33
+#define GLFW_NULL_SC_UP             34
+#define GLFW_NULL_SC_PAGE_UP        35
+#define GLFW_NULL_SC_PAGE_DOWN      36
+#define GLFW_NULL_SC_HOME           37
+#define GLFW_NULL_SC_END            38
+#define GLFW_NULL_SC_CAPS_LOCK      39
+#define GLFW_NULL_SC_SCROLL_LOCK    40
+#define GLFW_NULL_SC_NUM_LOCK       41
+#define GLFW_NULL_SC_PRINT_SCREEN   42
+#define GLFW_NULL_SC_PAUSE          43
+#define GLFW_NULL_SC_A              44
+#define GLFW_NULL_SC_B              45
+#define GLFW_NULL_SC_C              46
+#define GLFW_NULL_SC_D              47
+#define GLFW_NULL_SC_E              48
+#define GLFW_NULL_SC_F              49
+#define GLFW_NULL_SC_G              50
+#define GLFW_NULL_SC_H              51
+#define GLFW_NULL_SC_I              52
+#define GLFW_NULL_SC_J              53
+#define GLFW_NULL_SC_K              54
+#define GLFW_NULL_SC_L              55
+#define GLFW_NULL_SC_M              56
+#define GLFW_NULL_SC_N              57
+#define GLFW_NULL_SC_O              58
+#define GLFW_NULL_SC_P              59
+#define GLFW_NULL_SC_Q              60
+#define GLFW_NULL_SC_R              61
+#define GLFW_NULL_SC_S              62
+#define GLFW_NULL_SC_T              63
+#define GLFW_NULL_SC_U              64
+#define GLFW_NULL_SC_V              65
+#define GLFW_NULL_SC_W              66
+#define GLFW_NULL_SC_X              67
+#define GLFW_NULL_SC_Y              68
+#define GLFW_NULL_SC_Z              69
+#define GLFW_NULL_SC_F1             70
+#define GLFW_NULL_SC_F2             71
+#define GLFW_NULL_SC_F3             72
+#define GLFW_NULL_SC_F4             73
+#define GLFW_NULL_SC_F5             74
+#define GLFW_NULL_SC_F6             75
+#define GLFW_NULL_SC_F7             76
+#define GLFW_NULL_SC_F8             77
+#define GLFW_NULL_SC_F9             78
+#define GLFW_NULL_SC_F10            79
+#define GLFW_NULL_SC_F11            80
+#define GLFW_NULL_SC_F12            81
+#define GLFW_NULL_SC_F13            82
+#define GLFW_NULL_SC_F14            83
+#define GLFW_NULL_SC_F15            84
+#define GLFW_NULL_SC_F16            85
+#define GLFW_NULL_SC_F17            86
+#define GLFW_NULL_SC_F18            87
+#define GLFW_NULL_SC_F19            88
+#define GLFW_NULL_SC_F20            89
+#define GLFW_NULL_SC_F21            90
+#define GLFW_NULL_SC_F22            91
+#define GLFW_NULL_SC_F23            92
+#define GLFW_NULL_SC_F24            93
+#define GLFW_NULL_SC_F25            94
+#define GLFW_NULL_SC_KP_0           95
+#define GLFW_NULL_SC_KP_1           96
+#define GLFW_NULL_SC_KP_2           97
+#define GLFW_NULL_SC_KP_3           98
+#define GLFW_NULL_SC_KP_4           99
+#define GLFW_NULL_SC_KP_5           100
+#define GLFW_NULL_SC_KP_6           101
+#define GLFW_NULL_SC_KP_7           102
+#define GLFW_NULL_SC_KP_8           103
+#define GLFW_NULL_SC_KP_9           104
+#define GLFW_NULL_SC_KP_DECIMAL     105
+#define GLFW_NULL_SC_KP_DIVIDE      106
+#define GLFW_NULL_SC_KP_MULTIPLY    107
+#define GLFW_NULL_SC_KP_SUBTRACT    108
+#define GLFW_NULL_SC_KP_ADD         109
+#define GLFW_NULL_SC_KP_ENTER       110
+#define GLFW_NULL_SC_KP_EQUAL       111
+#define GLFW_NULL_SC_LEFT_SHIFT     112
+#define GLFW_NULL_SC_LEFT_CONTROL   113
+#define GLFW_NULL_SC_LEFT_ALT       114
+#define GLFW_NULL_SC_LEFT_SUPER     115
+#define GLFW_NULL_SC_RIGHT_SHIFT    116
+#define GLFW_NULL_SC_RIGHT_CONTROL  117
+#define GLFW_NULL_SC_RIGHT_ALT      118
+#define GLFW_NULL_SC_RIGHT_SUPER    119
+#define GLFW_NULL_SC_MENU           120
+#define GLFW_NULL_SC_LAST           GLFW_NULL_SC_MENU
+
+typedef VkFlags VkHeadlessSurfaceCreateFlagsEXT;
+
+typedef struct VkHeadlessSurfaceCreateInfoEXT
+{
+    VkStructureType                 sType;
+    const void*                     pNext;
+    VkHeadlessSurfaceCreateFlagsEXT flags;
+} VkHeadlessSurfaceCreateInfoEXT;
+
+typedef VkResult (APIENTRY *PFN_vkCreateHeadlessSurfaceEXT)(VkInstance,const VkHeadlessSurfaceCreateInfoEXT*,const VkAllocationCallbacks*,VkSurfaceKHR*);
+
+// Null-specific per-window data
+//
+typedef struct _GLFWwindowNull
+{
+    int             xpos;
+    int             ypos;
+    int             width;
+    int             height;
+    GLFWbool        visible;
+    GLFWbool        iconified;
+    GLFWbool        maximized;
+    GLFWbool        resizable;
+    GLFWbool        decorated;
+    GLFWbool        floating;
+    GLFWbool        transparent;
+    float           opacity;
+} _GLFWwindowNull;
+
+// Null-specific per-monitor data
+//
+typedef struct _GLFWmonitorNull
+{
+    GLFWgammaramp   ramp;
+} _GLFWmonitorNull;
+
+// Null-specific global data
+//
+typedef struct _GLFWlibraryNull
+{
+    int             xcursor;
+    int             ycursor;
+    char*           clipboardString;
+    _GLFWwindow*    focusedWindow;
+    uint16_t        keycodes[GLFW_NULL_SC_LAST + 1];
+    uint8_t         scancodes[GLFW_KEY_LAST + 1];
+} _GLFWlibraryNull;
+
+void _glfwPollMonitorsNull(void);
+
+GLFWbool _glfwConnectNull(int platformID, _GLFWplatform* platform);
+int _glfwInitNull(void);
+void _glfwTerminateNull(void);
+
+void _glfwFreeMonitorNull(_GLFWmonitor* monitor);
+void _glfwGetMonitorPosNull(_GLFWmonitor* monitor, int* xpos, int* ypos);
+void _glfwGetMonitorContentScaleNull(_GLFWmonitor* monitor, float* xscale, float* yscale);
+void _glfwGetMonitorWorkareaNull(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
+GLFWvidmode* _glfwGetVideoModesNull(_GLFWmonitor* monitor, int* found);
+GLFWbool _glfwGetVideoModeNull(_GLFWmonitor* monitor, GLFWvidmode* mode);
+GLFWbool _glfwGetGammaRampNull(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
+void _glfwSetGammaRampNull(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
+
+GLFWbool _glfwCreateWindowNull(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
+void _glfwDestroyWindowNull(_GLFWwindow* window);
+void _glfwSetWindowTitleNull(_GLFWwindow* window, const char* title);
+void _glfwSetWindowIconNull(_GLFWwindow* window, int count, const GLFWimage* images);
+void _glfwSetWindowMonitorNull(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
+void _glfwGetWindowPosNull(_GLFWwindow* window, int* xpos, int* ypos);
+void _glfwSetWindowPosNull(_GLFWwindow* window, int xpos, int ypos);
+void _glfwGetWindowSizeNull(_GLFWwindow* window, int* width, int* height);
+void _glfwSetWindowSizeNull(_GLFWwindow* window, int width, int height);
+void _glfwSetWindowSizeLimitsNull(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
+void _glfwSetWindowAspectRatioNull(_GLFWwindow* window, int n, int d);
+void _glfwGetFramebufferSizeNull(_GLFWwindow* window, int* width, int* height);
+void _glfwGetWindowFrameSizeNull(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
+void _glfwGetWindowContentScaleNull(_GLFWwindow* window, float* xscale, float* yscale);
+void _glfwIconifyWindowNull(_GLFWwindow* window);
+void _glfwRestoreWindowNull(_GLFWwindow* window);
+void _glfwMaximizeWindowNull(_GLFWwindow* window);
+GLFWbool _glfwWindowMaximizedNull(_GLFWwindow* window);
+GLFWbool _glfwWindowHoveredNull(_GLFWwindow* window);
+GLFWbool _glfwFramebufferTransparentNull(_GLFWwindow* window);
+void _glfwSetWindowResizableNull(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowDecoratedNull(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowFloatingNull(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowMousePassthroughNull(_GLFWwindow* window, GLFWbool enabled);
+float _glfwGetWindowOpacityNull(_GLFWwindow* window);
+void _glfwSetWindowOpacityNull(_GLFWwindow* window, float opacity);
+void _glfwSetRawMouseMotionNull(_GLFWwindow *window, GLFWbool enabled);
+GLFWbool _glfwRawMouseMotionSupportedNull(void);
+void _glfwShowWindowNull(_GLFWwindow* window);
+void _glfwRequestWindowAttentionNull(_GLFWwindow* window);
+void _glfwHideWindowNull(_GLFWwindow* window);
+void _glfwFocusWindowNull(_GLFWwindow* window);
+GLFWbool _glfwWindowFocusedNull(_GLFWwindow* window);
+GLFWbool _glfwWindowIconifiedNull(_GLFWwindow* window);
+GLFWbool _glfwWindowVisibleNull(_GLFWwindow* window);
+void _glfwPollEventsNull(void);
+void _glfwWaitEventsNull(void);
+void _glfwWaitEventsTimeoutNull(double timeout);
+void _glfwPostEmptyEventNull(void);
+void _glfwGetCursorPosNull(_GLFWwindow* window, double* xpos, double* ypos);
+void _glfwSetCursorPosNull(_GLFWwindow* window, double x, double y);
+void _glfwSetCursorModeNull(_GLFWwindow* window, int mode);
+GLFWbool _glfwCreateCursorNull(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot);
+GLFWbool _glfwCreateStandardCursorNull(_GLFWcursor* cursor, int shape);
+void _glfwDestroyCursorNull(_GLFWcursor* cursor);
+void _glfwSetCursorNull(_GLFWwindow* window, _GLFWcursor* cursor);
+void _glfwSetClipboardStringNull(const char* string);
+const char* _glfwGetClipboardStringNull(void);
+const char* _glfwGetScancodeNameNull(int scancode);
+int _glfwGetKeyScancodeNull(int key);
+
+EGLenum _glfwGetEGLPlatformNull(EGLint** attribs);
+EGLNativeDisplayType _glfwGetEGLNativeDisplayNull(void);
+EGLNativeWindowType _glfwGetEGLNativeWindowNull(_GLFWwindow* window);
+
+void _glfwGetRequiredInstanceExtensionsNull(char** extensions);
+GLFWbool _glfwGetPhysicalDevicePresentationSupportNull(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
+VkResult _glfwCreateWindowSurfaceNull(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
+
+void _glfwPollMonitorsNull(void);
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_window.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_window.c
new file mode 100644
index 000000000000..f0e1dcc9a9a6
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/null_window.c
@@ -0,0 +1,749 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016 Google Inc.
+// Copyright (c) 2016-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+static void applySizeLimits(_GLFWwindow* window, int* width, int* height)
+{
+    if (window->numer != GLFW_DONT_CARE && window->denom != GLFW_DONT_CARE)
+    {
+        const float ratio = (float) window->numer / (float) window->denom;
+        *height = (int) (*width / ratio);
+    }
+
+    if (window->minwidth != GLFW_DONT_CARE)
+        *width = _glfw_max(*width, window->minwidth);
+    else if (window->maxwidth != GLFW_DONT_CARE)
+        *width = _glfw_min(*width, window->maxwidth);
+
+    if (window->minheight != GLFW_DONT_CARE)
+        *height = _glfw_min(*height, window->minheight);
+    else if (window->maxheight != GLFW_DONT_CARE)
+        *height = _glfw_max(*height, window->maxheight);
+}
+
+static void fitToMonitor(_GLFWwindow* window)
+{
+    GLFWvidmode mode;
+    _glfwGetVideoModeNull(window->monitor, &mode);
+    _glfwGetMonitorPosNull(window->monitor,
+                           &window->null.xpos,
+                           &window->null.ypos);
+    window->null.width = mode.width;
+    window->null.height = mode.height;
+}
+
+static void acquireMonitor(_GLFWwindow* window)
+{
+    _glfwInputMonitorWindow(window->monitor, window);
+}
+
+static void releaseMonitor(_GLFWwindow* window)
+{
+    if (window->monitor->window != window)
+        return;
+
+    _glfwInputMonitorWindow(window->monitor, NULL);
+}
+
+static int createNativeWindow(_GLFWwindow* window,
+                              const _GLFWwndconfig* wndconfig,
+                              const _GLFWfbconfig* fbconfig)
+{
+    if (window->monitor)
+        fitToMonitor(window);
+    else
+    {
+        if (wndconfig->xpos == GLFW_ANY_POSITION && wndconfig->ypos == GLFW_ANY_POSITION)
+        {
+            window->null.xpos = 17;
+            window->null.ypos = 17;
+        }
+        else
+        {
+            window->null.xpos = wndconfig->xpos;
+            window->null.ypos = wndconfig->ypos;
+        }
+
+        window->null.width = wndconfig->width;
+        window->null.height = wndconfig->height;
+    }
+
+    window->null.visible = wndconfig->visible;
+    window->null.decorated = wndconfig->decorated;
+    window->null.maximized = wndconfig->maximized;
+    window->null.floating = wndconfig->floating;
+    window->null.transparent = fbconfig->transparent;
+    window->null.opacity = 1.f;
+
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwCreateWindowNull(_GLFWwindow* window,
+                               const _GLFWwndconfig* wndconfig,
+                               const _GLFWctxconfig* ctxconfig,
+                               const _GLFWfbconfig* fbconfig)
+{
+    if (!createNativeWindow(window, wndconfig, fbconfig))
+        return GLFW_FALSE;
+
+    if (ctxconfig->client != GLFW_NO_API)
+    {
+        if (ctxconfig->source == GLFW_NATIVE_CONTEXT_API ||
+            ctxconfig->source == GLFW_OSMESA_CONTEXT_API)
+        {
+            if (!_glfwInitOSMesa())
+                return GLFW_FALSE;
+            if (!_glfwCreateContextOSMesa(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+        else if (ctxconfig->source == GLFW_EGL_CONTEXT_API)
+        {
+            if (!_glfwInitEGL())
+                return GLFW_FALSE;
+            if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+
+        if (!_glfwRefreshContextAttribs(window, ctxconfig))
+            return GLFW_FALSE;
+    }
+
+    if (wndconfig->mousePassthrough)
+        _glfwSetWindowMousePassthroughNull(window, GLFW_TRUE);
+
+    if (window->monitor)
+    {
+        _glfwShowWindowNull(window);
+        _glfwFocusWindowNull(window);
+        acquireMonitor(window);
+
+        if (wndconfig->centerCursor)
+            _glfwCenterCursorInContentArea(window);
+    }
+    else
+    {
+        if (wndconfig->visible)
+        {
+            _glfwShowWindowNull(window);
+            if (wndconfig->focused)
+                _glfwFocusWindowNull(window);
+        }
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwDestroyWindowNull(_GLFWwindow* window)
+{
+    if (window->monitor)
+        releaseMonitor(window);
+
+    if (_glfw.null.focusedWindow == window)
+        _glfw.null.focusedWindow = NULL;
+
+    if (window->context.destroy)
+        window->context.destroy(window);
+}
+
+void _glfwSetWindowTitleNull(_GLFWwindow* window, const char* title)
+{
+}
+
+void _glfwSetWindowIconNull(_GLFWwindow* window, int count, const GLFWimage* images)
+{
+}
+
+void _glfwSetWindowMonitorNull(_GLFWwindow* window,
+                               _GLFWmonitor* monitor,
+                               int xpos, int ypos,
+                               int width, int height,
+                               int refreshRate)
+{
+    if (window->monitor == monitor)
+    {
+        if (!monitor)
+        {
+            _glfwSetWindowPosNull(window, xpos, ypos);
+            _glfwSetWindowSizeNull(window, width, height);
+        }
+
+        return;
+    }
+
+    if (window->monitor)
+        releaseMonitor(window);
+
+    _glfwInputWindowMonitor(window, monitor);
+
+    if (window->monitor)
+    {
+        window->null.visible = GLFW_TRUE;
+        acquireMonitor(window);
+        fitToMonitor(window);
+    }
+    else
+    {
+        _glfwSetWindowPosNull(window, xpos, ypos);
+        _glfwSetWindowSizeNull(window, width, height);
+    }
+}
+
+void _glfwGetWindowPosNull(_GLFWwindow* window, int* xpos, int* ypos)
+{
+    if (xpos)
+        *xpos = window->null.xpos;
+    if (ypos)
+        *ypos = window->null.ypos;
+}
+
+void _glfwSetWindowPosNull(_GLFWwindow* window, int xpos, int ypos)
+{
+    if (window->monitor)
+        return;
+
+    if (window->null.xpos != xpos || window->null.ypos != ypos)
+    {
+        window->null.xpos = xpos;
+        window->null.ypos = ypos;
+        _glfwInputWindowPos(window, xpos, ypos);
+    }
+}
+
+void _glfwGetWindowSizeNull(_GLFWwindow* window, int* width, int* height)
+{
+    if (width)
+        *width = window->null.width;
+    if (height)
+        *height = window->null.height;
+}
+
+void _glfwSetWindowSizeNull(_GLFWwindow* window, int width, int height)
+{
+    if (window->monitor)
+        return;
+
+    if (window->null.width != width || window->null.height != height)
+    {
+        window->null.width = width;
+        window->null.height = height;
+        _glfwInputFramebufferSize(window, width, height);
+        _glfwInputWindowDamage(window);
+        _glfwInputWindowSize(window, width, height);
+    }
+}
+
+void _glfwSetWindowSizeLimitsNull(_GLFWwindow* window,
+                                  int minwidth, int minheight,
+                                  int maxwidth, int maxheight)
+{
+    int width = window->null.width;
+    int height = window->null.height;
+    applySizeLimits(window, &width, &height);
+    _glfwSetWindowSizeNull(window, width, height);
+}
+
+void _glfwSetWindowAspectRatioNull(_GLFWwindow* window, int n, int d)
+{
+    int width = window->null.width;
+    int height = window->null.height;
+    applySizeLimits(window, &width, &height);
+    _glfwSetWindowSizeNull(window, width, height);
+}
+
+void _glfwGetFramebufferSizeNull(_GLFWwindow* window, int* width, int* height)
+{
+    if (width)
+        *width = window->null.width;
+    if (height)
+        *height = window->null.height;
+}
+
+void _glfwGetWindowFrameSizeNull(_GLFWwindow* window,
+                                 int* left, int* top,
+                                 int* right, int* bottom)
+{
+    if (window->null.decorated && !window->monitor)
+    {
+        if (left)
+            *left = 1;
+        if (top)
+            *top = 10;
+        if (right)
+            *right = 1;
+        if (bottom)
+            *bottom = 1;
+    }
+    else
+    {
+        if (left)
+            *left = 0;
+        if (top)
+            *top = 0;
+        if (right)
+            *right = 0;
+        if (bottom)
+            *bottom = 0;
+    }
+}
+
+void _glfwGetWindowContentScaleNull(_GLFWwindow* window, float* xscale, float* yscale)
+{
+    if (xscale)
+        *xscale = 1.f;
+    if (yscale)
+        *yscale = 1.f;
+}
+
+void _glfwIconifyWindowNull(_GLFWwindow* window)
+{
+    if (_glfw.null.focusedWindow == window)
+    {
+        _glfw.null.focusedWindow = NULL;
+        _glfwInputWindowFocus(window, GLFW_FALSE);
+    }
+
+    if (!window->null.iconified)
+    {
+        window->null.iconified = GLFW_TRUE;
+        _glfwInputWindowIconify(window, GLFW_TRUE);
+
+        if (window->monitor)
+            releaseMonitor(window);
+    }
+}
+
+void _glfwRestoreWindowNull(_GLFWwindow* window)
+{
+    if (window->null.iconified)
+    {
+        window->null.iconified = GLFW_FALSE;
+        _glfwInputWindowIconify(window, GLFW_FALSE);
+
+        if (window->monitor)
+            acquireMonitor(window);
+    }
+    else if (window->null.maximized)
+    {
+        window->null.maximized = GLFW_FALSE;
+        _glfwInputWindowMaximize(window, GLFW_FALSE);
+    }
+}
+
+void _glfwMaximizeWindowNull(_GLFWwindow* window)
+{
+    if (!window->null.maximized)
+    {
+        window->null.maximized = GLFW_TRUE;
+        _glfwInputWindowMaximize(window, GLFW_TRUE);
+    }
+}
+
+GLFWbool _glfwWindowMaximizedNull(_GLFWwindow* window)
+{
+    return window->null.maximized;
+}
+
+GLFWbool _glfwWindowHoveredNull(_GLFWwindow* window)
+{
+    return _glfw.null.xcursor >= window->null.xpos &&
+           _glfw.null.ycursor >= window->null.ypos &&
+           _glfw.null.xcursor <= window->null.xpos + window->null.width - 1 &&
+           _glfw.null.ycursor <= window->null.ypos + window->null.height - 1;
+}
+
+GLFWbool _glfwFramebufferTransparentNull(_GLFWwindow* window)
+{
+    return window->null.transparent;
+}
+
+void _glfwSetWindowResizableNull(_GLFWwindow* window, GLFWbool enabled)
+{
+    window->null.resizable = enabled;
+}
+
+void _glfwSetWindowDecoratedNull(_GLFWwindow* window, GLFWbool enabled)
+{
+    window->null.decorated = enabled;
+}
+
+void _glfwSetWindowFloatingNull(_GLFWwindow* window, GLFWbool enabled)
+{
+    window->null.floating = enabled;
+}
+
+void _glfwSetWindowMousePassthroughNull(_GLFWwindow* window, GLFWbool enabled)
+{
+}
+
+float _glfwGetWindowOpacityNull(_GLFWwindow* window)
+{
+    return window->null.opacity;
+}
+
+void _glfwSetWindowOpacityNull(_GLFWwindow* window, float opacity)
+{
+    window->null.opacity = opacity;
+}
+
+void _glfwSetRawMouseMotionNull(_GLFWwindow *window, GLFWbool enabled)
+{
+}
+
+GLFWbool _glfwRawMouseMotionSupportedNull(void)
+{
+    return GLFW_TRUE;
+}
+
+void _glfwShowWindowNull(_GLFWwindow* window)
+{
+    window->null.visible = GLFW_TRUE;
+}
+
+void _glfwRequestWindowAttentionNull(_GLFWwindow* window)
+{
+}
+
+void _glfwHideWindowNull(_GLFWwindow* window)
+{
+    if (_glfw.null.focusedWindow == window)
+    {
+        _glfw.null.focusedWindow = NULL;
+        _glfwInputWindowFocus(window, GLFW_FALSE);
+    }
+
+    window->null.visible = GLFW_FALSE;
+}
+
+void _glfwFocusWindowNull(_GLFWwindow* window)
+{
+    _GLFWwindow* previous;
+
+    if (_glfw.null.focusedWindow == window)
+        return;
+
+    if (!window->null.visible)
+        return;
+
+    previous = _glfw.null.focusedWindow;
+    _glfw.null.focusedWindow = window;
+
+    if (previous)
+    {
+        _glfwInputWindowFocus(previous, GLFW_FALSE);
+        if (previous->monitor && previous->autoIconify)
+            _glfwIconifyWindowNull(previous);
+    }
+
+    _glfwInputWindowFocus(window, GLFW_TRUE);
+}
+
+GLFWbool _glfwWindowFocusedNull(_GLFWwindow* window)
+{
+    return _glfw.null.focusedWindow == window;
+}
+
+GLFWbool _glfwWindowIconifiedNull(_GLFWwindow* window)
+{
+    return window->null.iconified;
+}
+
+GLFWbool _glfwWindowVisibleNull(_GLFWwindow* window)
+{
+    return window->null.visible;
+}
+
+void _glfwPollEventsNull(void)
+{
+}
+
+void _glfwWaitEventsNull(void)
+{
+}
+
+void _glfwWaitEventsTimeoutNull(double timeout)
+{
+}
+
+void _glfwPostEmptyEventNull(void)
+{
+}
+
+void _glfwGetCursorPosNull(_GLFWwindow* window, double* xpos, double* ypos)
+{
+    if (xpos)
+        *xpos = _glfw.null.xcursor - window->null.xpos;
+    if (ypos)
+        *ypos = _glfw.null.ycursor - window->null.ypos;
+}
+
+void _glfwSetCursorPosNull(_GLFWwindow* window, double x, double y)
+{
+    _glfw.null.xcursor = window->null.xpos + (int) x;
+    _glfw.null.ycursor = window->null.ypos + (int) y;
+}
+
+void _glfwSetCursorModeNull(_GLFWwindow* window, int mode)
+{
+}
+
+GLFWbool _glfwCreateCursorNull(_GLFWcursor* cursor,
+                               const GLFWimage* image,
+                               int xhot, int yhot)
+{
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwCreateStandardCursorNull(_GLFWcursor* cursor, int shape)
+{
+    return GLFW_TRUE;
+}
+
+void _glfwDestroyCursorNull(_GLFWcursor* cursor)
+{
+}
+
+void _glfwSetCursorNull(_GLFWwindow* window, _GLFWcursor* cursor)
+{
+}
+
+void _glfwSetClipboardStringNull(const char* string)
+{
+    char* copy = _glfw_strdup(string);
+    _glfw_free(_glfw.null.clipboardString);
+    _glfw.null.clipboardString = copy;
+}
+
+const char* _glfwGetClipboardStringNull(void)
+{
+    return _glfw.null.clipboardString;
+}
+
+EGLenum _glfwGetEGLPlatformNull(EGLint** attribs)
+{
+    if (_glfw.egl.EXT_platform_base && _glfw.egl.MESA_platform_surfaceless)
+        return EGL_PLATFORM_SURFACELESS_MESA;
+    else
+        return 0;
+}
+
+EGLNativeDisplayType _glfwGetEGLNativeDisplayNull(void)
+{
+    return EGL_DEFAULT_DISPLAY;
+}
+
+EGLNativeWindowType _glfwGetEGLNativeWindowNull(_GLFWwindow* window)
+{
+    return 0;
+}
+
+const char* _glfwGetScancodeNameNull(int scancode)
+{
+    if (scancode < GLFW_NULL_SC_FIRST || scancode > GLFW_NULL_SC_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Invalid scancode %i", scancode);
+        return NULL;
+    }
+
+    switch (scancode)
+    {
+        case GLFW_NULL_SC_APOSTROPHE:
+            return "'";
+        case GLFW_NULL_SC_COMMA:
+            return ",";
+        case GLFW_NULL_SC_MINUS:
+        case GLFW_NULL_SC_KP_SUBTRACT:
+            return "-";
+        case GLFW_NULL_SC_PERIOD:
+        case GLFW_NULL_SC_KP_DECIMAL:
+            return ".";
+        case GLFW_NULL_SC_SLASH:
+        case GLFW_NULL_SC_KP_DIVIDE:
+            return "/";
+        case GLFW_NULL_SC_SEMICOLON:
+            return ";";
+        case GLFW_NULL_SC_EQUAL:
+        case GLFW_NULL_SC_KP_EQUAL:
+            return "=";
+        case GLFW_NULL_SC_LEFT_BRACKET:
+            return "[";
+        case GLFW_NULL_SC_RIGHT_BRACKET:
+            return "]";
+        case GLFW_NULL_SC_KP_MULTIPLY:
+            return "*";
+        case GLFW_NULL_SC_KP_ADD:
+            return "+";
+        case GLFW_NULL_SC_BACKSLASH:
+        case GLFW_NULL_SC_WORLD_1:
+        case GLFW_NULL_SC_WORLD_2:
+            return "\\";
+        case GLFW_NULL_SC_0:
+        case GLFW_NULL_SC_KP_0:
+            return "0";
+        case GLFW_NULL_SC_1:
+        case GLFW_NULL_SC_KP_1:
+            return "1";
+        case GLFW_NULL_SC_2:
+        case GLFW_NULL_SC_KP_2:
+            return "2";
+        case GLFW_NULL_SC_3:
+        case GLFW_NULL_SC_KP_3:
+            return "3";
+        case GLFW_NULL_SC_4:
+        case GLFW_NULL_SC_KP_4:
+            return "4";
+        case GLFW_NULL_SC_5:
+        case GLFW_NULL_SC_KP_5:
+            return "5";
+        case GLFW_NULL_SC_6:
+        case GLFW_NULL_SC_KP_6:
+            return "6";
+        case GLFW_NULL_SC_7:
+        case GLFW_NULL_SC_KP_7:
+            return "7";
+        case GLFW_NULL_SC_8:
+        case GLFW_NULL_SC_KP_8:
+            return "8";
+        case GLFW_NULL_SC_9:
+        case GLFW_NULL_SC_KP_9:
+            return "9";
+        case GLFW_NULL_SC_A:
+            return "a";
+        case GLFW_NULL_SC_B:
+            return "b";
+        case GLFW_NULL_SC_C:
+            return "c";
+        case GLFW_NULL_SC_D:
+            return "d";
+        case GLFW_NULL_SC_E:
+            return "e";
+        case GLFW_NULL_SC_F:
+            return "f";
+        case GLFW_NULL_SC_G:
+            return "g";
+        case GLFW_NULL_SC_H:
+            return "h";
+        case GLFW_NULL_SC_I:
+            return "i";
+        case GLFW_NULL_SC_J:
+            return "j";
+        case GLFW_NULL_SC_K:
+            return "k";
+        case GLFW_NULL_SC_L:
+            return "l";
+        case GLFW_NULL_SC_M:
+            return "m";
+        case GLFW_NULL_SC_N:
+            return "n";
+        case GLFW_NULL_SC_O:
+            return "o";
+        case GLFW_NULL_SC_P:
+            return "p";
+        case GLFW_NULL_SC_Q:
+            return "q";
+        case GLFW_NULL_SC_R:
+            return "r";
+        case GLFW_NULL_SC_S:
+            return "s";
+        case GLFW_NULL_SC_T:
+            return "t";
+        case GLFW_NULL_SC_U:
+            return "u";
+        case GLFW_NULL_SC_V:
+            return "v";
+        case GLFW_NULL_SC_W:
+            return "w";
+        case GLFW_NULL_SC_X:
+            return "x";
+        case GLFW_NULL_SC_Y:
+            return "y";
+        case GLFW_NULL_SC_Z:
+            return "z";
+    }
+
+    return NULL;
+}
+
+int _glfwGetKeyScancodeNull(int key)
+{
+    return _glfw.null.scancodes[key];
+}
+
+void _glfwGetRequiredInstanceExtensionsNull(char** extensions)
+{
+    if (!_glfw.vk.KHR_surface || !_glfw.vk.EXT_headless_surface)
+        return;
+
+    extensions[0] = "VK_KHR_surface";
+    extensions[1] = "VK_EXT_headless_surface";
+}
+
+GLFWbool _glfwGetPhysicalDevicePresentationSupportNull(VkInstance instance,
+                                                       VkPhysicalDevice device,
+                                                       uint32_t queuefamily)
+{
+    return GLFW_TRUE;
+}
+
+VkResult _glfwCreateWindowSurfaceNull(VkInstance instance,
+                                      _GLFWwindow* window,
+                                      const VkAllocationCallbacks* allocator,
+                                      VkSurfaceKHR* surface)
+{
+    PFN_vkCreateHeadlessSurfaceEXT vkCreateHeadlessSurfaceEXT =
+        (PFN_vkCreateHeadlessSurfaceEXT)
+        vkGetInstanceProcAddr(instance, "vkCreateHeadlessSurfaceEXT");
+    if (!vkCreateHeadlessSurfaceEXT)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Null: Vulkan instance missing VK_EXT_headless_surface extension");
+        return VK_ERROR_EXTENSION_NOT_PRESENT;
+    }
+
+    VkHeadlessSurfaceCreateInfoEXT sci;
+    memset(&sci, 0, sizeof(sci));
+    sci.sType = VK_STRUCTURE_TYPE_HEADLESS_SURFACE_CREATE_INFO_EXT;
+
+    const VkResult err = vkCreateHeadlessSurfaceEXT(instance, &sci, allocator, surface);
+    if (err)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Null: Failed to create Vulkan surface: %s",
+                        _glfwGetVulkanResultString(err));
+    }
+
+    return err;
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/osmesa_context.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/osmesa_context.c
new file mode 100644
index 000000000000..0bb375a8bd6d
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/osmesa_context.c
@@ -0,0 +1,387 @@
+//========================================================================
+// GLFW 3.5 OSMesa - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016 Google Inc.
+// Copyright (c) 2016-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+static void makeContextCurrentOSMesa(_GLFWwindow* window)
+{
+    if (window)
+    {
+        int width, height;
+        _glfw.platform.getFramebufferSize(window, &width, &height);
+
+        // Check to see if we need to allocate a new buffer
+        if ((window->context.osmesa.buffer == NULL) ||
+            (width != window->context.osmesa.width) ||
+            (height != window->context.osmesa.height))
+        {
+            _glfw_free(window->context.osmesa.buffer);
+
+            // Allocate the new buffer (width * height * 8-bit RGBA)
+            window->context.osmesa.buffer = _glfw_calloc(4, (size_t) width * height);
+            window->context.osmesa.width  = width;
+            window->context.osmesa.height = height;
+        }
+
+        if (!OSMesaMakeCurrent(window->context.osmesa.handle,
+                               window->context.osmesa.buffer,
+                               GL_UNSIGNED_BYTE,
+                               width, height))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "OSMesa: Failed to make context current");
+            return;
+        }
+    }
+
+    _glfwPlatformSetTls(&_glfw.contextSlot, window);
+}
+
+static GLFWglproc getProcAddressOSMesa(const char* procname)
+{
+    return (GLFWglproc) OSMesaGetProcAddress(procname);
+}
+
+static void destroyContextOSMesa(_GLFWwindow* window)
+{
+    if (window->context.osmesa.handle)
+    {
+        OSMesaDestroyContext(window->context.osmesa.handle);
+        window->context.osmesa.handle = NULL;
+    }
+
+    if (window->context.osmesa.buffer)
+    {
+        _glfw_free(window->context.osmesa.buffer);
+        window->context.osmesa.width = 0;
+        window->context.osmesa.height = 0;
+    }
+}
+
+static void swapBuffersOSMesa(_GLFWwindow* window)
+{
+    // No double buffering on OSMesa
+}
+
+static void swapIntervalOSMesa(int interval)
+{
+    // No swap interval on OSMesa
+}
+
+static int extensionSupportedOSMesa(const char* extension)
+{
+    // OSMesa does not have extensions
+    return GLFW_FALSE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwInitOSMesa(void)
+{
+    int i;
+    const char* sonames[] =
+    {
+#if defined(_GLFW_OSMESA_LIBRARY)
+        _GLFW_OSMESA_LIBRARY,
+#elif defined(_WIN32)
+        "libOSMesa.dll",
+        "OSMesa.dll",
+#elif defined(__APPLE__)
+        "libOSMesa.8.dylib",
+#elif defined(__CYGWIN__)
+        "libOSMesa-8.so",
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+        "libOSMesa.so",
+#else
+        "libOSMesa.so.8",
+        "libOSMesa.so.6",
+#endif
+        NULL
+    };
+
+    if (_glfw.osmesa.handle)
+        return GLFW_TRUE;
+
+    for (i = 0;  sonames[i];  i++)
+    {
+        _glfw.osmesa.handle = _glfwPlatformLoadModule(sonames[i]);
+        if (_glfw.osmesa.handle)
+            break;
+    }
+
+    if (!_glfw.osmesa.handle)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "OSMesa: Library not found");
+        return GLFW_FALSE;
+    }
+
+    _glfw.osmesa.CreateContextExt = (PFN_OSMesaCreateContextExt)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaCreateContextExt");
+    _glfw.osmesa.CreateContextAttribs = (PFN_OSMesaCreateContextAttribs)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaCreateContextAttribs");
+    _glfw.osmesa.DestroyContext = (PFN_OSMesaDestroyContext)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaDestroyContext");
+    _glfw.osmesa.MakeCurrent = (PFN_OSMesaMakeCurrent)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaMakeCurrent");
+    _glfw.osmesa.GetColorBuffer = (PFN_OSMesaGetColorBuffer)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaGetColorBuffer");
+    _glfw.osmesa.GetDepthBuffer = (PFN_OSMesaGetDepthBuffer)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaGetDepthBuffer");
+    _glfw.osmesa.GetProcAddress = (PFN_OSMesaGetProcAddress)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaGetProcAddress");
+
+    if (!_glfw.osmesa.CreateContextExt ||
+        !_glfw.osmesa.DestroyContext ||
+        !_glfw.osmesa.MakeCurrent ||
+        !_glfw.osmesa.GetColorBuffer ||
+        !_glfw.osmesa.GetDepthBuffer ||
+        !_glfw.osmesa.GetProcAddress)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "OSMesa: Failed to load required entry points");
+
+        _glfwTerminateOSMesa();
+        return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateOSMesa(void)
+{
+    if (_glfw.osmesa.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.osmesa.handle);
+        _glfw.osmesa.handle = NULL;
+    }
+}
+
+#define SET_ATTRIB(a, v) \
+{ \
+    assert(((size_t) index + 1) < sizeof(attribs) / sizeof(attribs[0])); \
+    attribs[index++] = a; \
+    attribs[index++] = v; \
+}
+
+GLFWbool _glfwCreateContextOSMesa(_GLFWwindow* window,
+                                  const _GLFWctxconfig* ctxconfig,
+                                  const _GLFWfbconfig* fbconfig)
+{
+    OSMesaContext share = NULL;
+    const int accumBits = fbconfig->accumRedBits +
+                          fbconfig->accumGreenBits +
+                          fbconfig->accumBlueBits +
+                          fbconfig->accumAlphaBits;
+
+    if (ctxconfig->client == GLFW_OPENGL_ES_API)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "OSMesa: OpenGL ES is not available on OSMesa");
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->share)
+        share = ctxconfig->share->context.osmesa.handle;
+
+    if (OSMesaCreateContextAttribs)
+    {
+        int index = 0, attribs[40];
+
+        SET_ATTRIB(OSMESA_FORMAT, OSMESA_RGBA);
+        SET_ATTRIB(OSMESA_DEPTH_BITS, fbconfig->depthBits);
+        SET_ATTRIB(OSMESA_STENCIL_BITS, fbconfig->stencilBits);
+        SET_ATTRIB(OSMESA_ACCUM_BITS, accumBits);
+
+        if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
+        {
+            SET_ATTRIB(OSMESA_PROFILE, OSMESA_CORE_PROFILE);
+        }
+        else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
+        {
+            SET_ATTRIB(OSMESA_PROFILE, OSMESA_COMPAT_PROFILE);
+        }
+
+        if (ctxconfig->major != 1 || ctxconfig->minor != 0)
+        {
+            SET_ATTRIB(OSMESA_CONTEXT_MAJOR_VERSION, ctxconfig->major);
+            SET_ATTRIB(OSMESA_CONTEXT_MINOR_VERSION, ctxconfig->minor);
+        }
+
+        if (ctxconfig->forward)
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "OSMesa: Forward-compatible contexts not supported");
+            return GLFW_FALSE;
+        }
+
+        SET_ATTRIB(0, 0);
+
+        window->context.osmesa.handle =
+            OSMesaCreateContextAttribs(attribs, share);
+    }
+    else
+    {
+        if (ctxconfig->profile)
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "OSMesa: OpenGL profiles unavailable");
+            return GLFW_FALSE;
+        }
+
+        window->context.osmesa.handle =
+            OSMesaCreateContextExt(OSMESA_RGBA,
+                                   fbconfig->depthBits,
+                                   fbconfig->stencilBits,
+                                   accumBits,
+                                   share);
+    }
+
+    if (window->context.osmesa.handle == NULL)
+    {
+        _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                        "OSMesa: Failed to create context");
+        return GLFW_FALSE;
+    }
+
+    window->context.makeCurrent = makeContextCurrentOSMesa;
+    window->context.swapBuffers = swapBuffersOSMesa;
+    window->context.swapInterval = swapIntervalOSMesa;
+    window->context.extensionSupported = extensionSupportedOSMesa;
+    window->context.getProcAddress = getProcAddressOSMesa;
+    window->context.destroy = destroyContextOSMesa;
+
+    return GLFW_TRUE;
+}
+
+#undef SET_ATTRIB
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI int glfwGetOSMesaColorBuffer(GLFWwindow* handle, int* width,
+                                     int* height, int* format, void** buffer)
+{
+    void* mesaBuffer;
+    GLint mesaWidth, mesaHeight, mesaFormat;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->context.source != GLFW_OSMESA_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return GLFW_FALSE;
+    }
+
+    if (!OSMesaGetColorBuffer(window->context.osmesa.handle,
+                              &mesaWidth, &mesaHeight,
+                              &mesaFormat, &mesaBuffer))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "OSMesa: Failed to retrieve color buffer");
+        return GLFW_FALSE;
+    }
+
+    if (width)
+        *width = mesaWidth;
+    if (height)
+        *height = mesaHeight;
+    if (format)
+        *format = mesaFormat;
+    if (buffer)
+        *buffer = mesaBuffer;
+
+    return GLFW_TRUE;
+}
+
+GLFWAPI int glfwGetOSMesaDepthBuffer(GLFWwindow* handle,
+                                     int* width, int* height,
+                                     int* bytesPerValue,
+                                     void** buffer)
+{
+    void* mesaBuffer;
+    GLint mesaWidth, mesaHeight, mesaBytes;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->context.source != GLFW_OSMESA_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return GLFW_FALSE;
+    }
+
+    if (!OSMesaGetDepthBuffer(window->context.osmesa.handle,
+                              &mesaWidth, &mesaHeight,
+                              &mesaBytes, &mesaBuffer))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "OSMesa: Failed to retrieve depth buffer");
+        return GLFW_FALSE;
+    }
+
+    if (width)
+        *width = mesaWidth;
+    if (height)
+        *height = mesaHeight;
+    if (bytesPerValue)
+        *bytesPerValue = mesaBytes;
+    if (buffer)
+        *buffer = mesaBuffer;
+
+    return GLFW_TRUE;
+}
+
+GLFWAPI OSMesaContext glfwGetOSMesaContext(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->context.source != GLFW_OSMESA_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return NULL;
+    }
+
+    return window->context.osmesa.handle;
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/platform.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/platform.c
new file mode 100644
index 000000000000..9ca64963e0fa
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/platform.c
@@ -0,0 +1,212 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <string.h>
+#include <stdlib.h>
+
+// These construct a string literal from individual numeric constants
+#define _GLFW_CONCAT_VERSION(m, n, r) #m "." #n "." #r
+#define _GLFW_MAKE_VERSION(m, n, r) _GLFW_CONCAT_VERSION(m, n, r)
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+static const struct
+{
+    int ID;
+    GLFWbool (*connect)(int,_GLFWplatform*);
+} supportedPlatforms[] =
+{
+#if defined(_GLFW_WIN32)
+    { GLFW_PLATFORM_WIN32, _glfwConnectWin32 },
+#endif
+#if defined(_GLFW_COCOA)
+    { GLFW_PLATFORM_COCOA, _glfwConnectCocoa },
+#endif
+#if defined(_GLFW_WAYLAND)
+    { GLFW_PLATFORM_WAYLAND, _glfwConnectWayland },
+#endif
+#if defined(_GLFW_X11)
+    { GLFW_PLATFORM_X11, _glfwConnectX11 },
+#endif
+};
+
+GLFWbool _glfwSelectPlatform(int desiredID, _GLFWplatform* platform)
+{
+    const size_t count = sizeof(supportedPlatforms) / sizeof(supportedPlatforms[0]);
+    size_t i;
+
+    if (desiredID != GLFW_ANY_PLATFORM &&
+        desiredID != GLFW_PLATFORM_WIN32 &&
+        desiredID != GLFW_PLATFORM_COCOA &&
+        desiredID != GLFW_PLATFORM_WAYLAND &&
+        desiredID != GLFW_PLATFORM_X11 &&
+        desiredID != GLFW_PLATFORM_NULL)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid platform ID 0x%08X", desiredID);
+        return GLFW_FALSE;
+    }
+
+    // Only allow the Null platform if specifically requested
+    if (desiredID == GLFW_PLATFORM_NULL)
+        return _glfwConnectNull(desiredID, platform);
+    else if (count == 0)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "This binary only supports the Null platform");
+        return GLFW_FALSE;
+    }
+
+#if defined(_GLFW_WAYLAND) && defined(_GLFW_X11)
+    if (desiredID == GLFW_ANY_PLATFORM)
+    {
+        const char* const session = getenv("XDG_SESSION_TYPE");
+        if (session)
+        {
+            // Only follow XDG_SESSION_TYPE if it is set correctly and the
+            // environment looks plausble; otherwise fall back to detection
+            if (strcmp(session, "wayland") == 0 && getenv("WAYLAND_DISPLAY"))
+                desiredID = GLFW_PLATFORM_WAYLAND;
+            else if (strcmp(session, "x11") == 0 && getenv("DISPLAY"))
+                desiredID = GLFW_PLATFORM_X11;
+        }
+    }
+#endif
+
+    if (desiredID == GLFW_ANY_PLATFORM)
+    {
+        // If there is exactly one platform available for auto-selection, let it emit the
+        // error on failure as the platform-specific error description may be more helpful
+        if (count == 1)
+            return supportedPlatforms[0].connect(supportedPlatforms[0].ID, platform);
+
+        for (i = 0;  i < count;  i++)
+        {
+            if (supportedPlatforms[i].connect(desiredID, platform))
+                return GLFW_TRUE;
+        }
+
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "Failed to detect any supported platform");
+    }
+    else
+    {
+        for (i = 0;  i < count;  i++)
+        {
+            if (supportedPlatforms[i].ID == desiredID)
+                return supportedPlatforms[i].connect(desiredID, platform);
+        }
+
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "The requested platform is not supported");
+    }
+
+    return GLFW_FALSE;
+}
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW public API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI int glfwGetPlatform(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(0);
+    return _glfw.platform.platformID;
+}
+
+GLFWAPI int glfwPlatformSupported(int platformID)
+{
+    const size_t count = sizeof(supportedPlatforms) / sizeof(supportedPlatforms[0]);
+    size_t i;
+
+    if (platformID != GLFW_PLATFORM_WIN32 &&
+        platformID != GLFW_PLATFORM_COCOA &&
+        platformID != GLFW_PLATFORM_WAYLAND &&
+        platformID != GLFW_PLATFORM_X11 &&
+        platformID != GLFW_PLATFORM_NULL)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid platform ID 0x%08X", platformID);
+        return GLFW_FALSE;
+    }
+
+    if (platformID == GLFW_PLATFORM_NULL)
+        return GLFW_TRUE;
+
+    for (i = 0;  i < count;  i++)
+    {
+        if (platformID == supportedPlatforms[i].ID)
+            return GLFW_TRUE;
+    }
+
+    return GLFW_FALSE;
+}
+
+GLFWAPI const char* glfwGetVersionString(void)
+{
+    return _GLFW_MAKE_VERSION(GLFW_VERSION_MAJOR,
+                              GLFW_VERSION_MINOR,
+                              GLFW_VERSION_REVISION)
+#if defined(_GLFW_WIN32)
+        " Win32 WGL"
+#endif
+#if defined(_GLFW_COCOA)
+        " Cocoa NSGL"
+#endif
+#if defined(_GLFW_WAYLAND)
+        " Wayland"
+#endif
+#if defined(_GLFW_X11)
+        " X11 GLX"
+#endif
+        " Null"
+        " EGL"
+        " OSMesa"
+#if defined(__MINGW64_VERSION_MAJOR)
+        " MinGW-w64"
+#elif defined(__MINGW32__)
+        " MinGW"
+#elif defined(_MSC_VER)
+        " VisualC"
+#endif
+#if defined(_GLFW_USE_HYBRID_HPG) || defined(_GLFW_USE_OPTIMUS_HPG)
+        " hybrid-GPU"
+#endif
+#if defined(_POSIX_MONOTONIC_CLOCK)
+        " monotonic"
+#endif
+#if defined(_GLFW_BUILD_DLL)
+#if defined(_WIN32)
+        " DLL"
+#elif defined(__APPLE__)
+        " dynamic"
+#else
+        " shared"
+#endif
+#endif
+        ;
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/platform.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/platform.h
new file mode 100644
index 000000000000..7ce4e015ab86
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/platform.h
@@ -0,0 +1,212 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#if defined(GLFW_BUILD_WIN32_TIMER) || \
+    defined(GLFW_BUILD_WIN32_MODULE) || \
+    defined(GLFW_BUILD_WIN32_THREAD) || \
+    defined(GLFW_BUILD_COCOA_TIMER) || \
+    defined(GLFW_BUILD_POSIX_TIMER) || \
+    defined(GLFW_BUILD_POSIX_MODULE) || \
+    defined(GLFW_BUILD_POSIX_THREAD) || \
+    defined(GLFW_BUILD_POSIX_POLL) || \
+    defined(GLFW_BUILD_LINUX_JOYSTICK)
+ #error "You must not define these; define zero or more _GLFW_<platform> macros instead"
+#endif
+
+#include "null_platform.h"
+#define GLFW_EXPOSE_NATIVE_EGL
+#define GLFW_EXPOSE_NATIVE_OSMESA
+
+#if defined(_GLFW_WIN32)
+ #include "win32_platform.h"
+ #define GLFW_EXPOSE_NATIVE_WIN32
+ #define GLFW_EXPOSE_NATIVE_WGL
+#else
+ #define GLFW_WIN32_WINDOW_STATE
+ #define GLFW_WIN32_MONITOR_STATE
+ #define GLFW_WIN32_CURSOR_STATE
+ #define GLFW_WIN32_LIBRARY_WINDOW_STATE
+ #define GLFW_WGL_CONTEXT_STATE
+ #define GLFW_WGL_LIBRARY_CONTEXT_STATE
+#endif
+
+#if defined(_GLFW_COCOA)
+ #include "cocoa_platform.h"
+ #define GLFW_EXPOSE_NATIVE_COCOA
+ #define GLFW_EXPOSE_NATIVE_NSGL
+#else
+ #define GLFW_COCOA_WINDOW_STATE
+ #define GLFW_COCOA_MONITOR_STATE
+ #define GLFW_COCOA_CURSOR_STATE
+ #define GLFW_COCOA_LIBRARY_WINDOW_STATE
+ #define GLFW_NSGL_CONTEXT_STATE
+ #define GLFW_NSGL_LIBRARY_CONTEXT_STATE
+#endif
+
+#if defined(_GLFW_WAYLAND)
+ #include "wl_platform.h"
+ #define GLFW_EXPOSE_NATIVE_WAYLAND
+#else
+ #define GLFW_WAYLAND_WINDOW_STATE
+ #define GLFW_WAYLAND_MONITOR_STATE
+ #define GLFW_WAYLAND_CURSOR_STATE
+ #define GLFW_WAYLAND_LIBRARY_WINDOW_STATE
+#endif
+
+#if defined(_GLFW_X11)
+ #include "x11_platform.h"
+ #define GLFW_EXPOSE_NATIVE_X11
+ #define GLFW_EXPOSE_NATIVE_GLX
+#else
+ #define GLFW_X11_WINDOW_STATE
+ #define GLFW_X11_MONITOR_STATE
+ #define GLFW_X11_CURSOR_STATE
+ #define GLFW_X11_LIBRARY_WINDOW_STATE
+ #define GLFW_GLX_CONTEXT_STATE
+ #define GLFW_GLX_LIBRARY_CONTEXT_STATE
+#endif
+
+#include "null_joystick.h"
+
+#if defined(_GLFW_WIN32)
+ #include "win32_joystick.h"
+#else
+ #define GLFW_WIN32_JOYSTICK_STATE
+ #define GLFW_WIN32_LIBRARY_JOYSTICK_STATE
+#endif
+
+#if defined(_GLFW_COCOA)
+ #include "cocoa_joystick.h"
+#else
+ #define GLFW_COCOA_JOYSTICK_STATE
+ #define GLFW_COCOA_LIBRARY_JOYSTICK_STATE
+#endif
+
+#if (defined(_GLFW_X11) || defined(_GLFW_WAYLAND)) && defined(__linux__)
+ #define GLFW_BUILD_LINUX_JOYSTICK
+#endif
+
+#if defined(GLFW_BUILD_LINUX_JOYSTICK)
+ #include "linux_joystick.h"
+#else
+ #define GLFW_LINUX_JOYSTICK_STATE
+ #define GLFW_LINUX_LIBRARY_JOYSTICK_STATE
+#endif
+
+#define GLFW_PLATFORM_WINDOW_STATE \
+        GLFW_WIN32_WINDOW_STATE \
+        GLFW_COCOA_WINDOW_STATE \
+        GLFW_WAYLAND_WINDOW_STATE \
+        GLFW_X11_WINDOW_STATE \
+        GLFW_NULL_WINDOW_STATE \
+
+#define GLFW_PLATFORM_MONITOR_STATE \
+        GLFW_WIN32_MONITOR_STATE \
+        GLFW_COCOA_MONITOR_STATE \
+        GLFW_WAYLAND_MONITOR_STATE \
+        GLFW_X11_MONITOR_STATE \
+        GLFW_NULL_MONITOR_STATE \
+
+#define GLFW_PLATFORM_CURSOR_STATE \
+        GLFW_WIN32_CURSOR_STATE \
+        GLFW_COCOA_CURSOR_STATE \
+        GLFW_WAYLAND_CURSOR_STATE \
+        GLFW_X11_CURSOR_STATE \
+        GLFW_NULL_CURSOR_STATE \
+
+#define GLFW_PLATFORM_JOYSTICK_STATE \
+        GLFW_WIN32_JOYSTICK_STATE \
+        GLFW_COCOA_JOYSTICK_STATE \
+        GLFW_LINUX_JOYSTICK_STATE
+
+#define GLFW_PLATFORM_LIBRARY_WINDOW_STATE \
+        GLFW_WIN32_LIBRARY_WINDOW_STATE \
+        GLFW_COCOA_LIBRARY_WINDOW_STATE \
+        GLFW_WAYLAND_LIBRARY_WINDOW_STATE \
+        GLFW_X11_LIBRARY_WINDOW_STATE \
+        GLFW_NULL_LIBRARY_WINDOW_STATE \
+
+#define GLFW_PLATFORM_LIBRARY_JOYSTICK_STATE \
+        GLFW_WIN32_LIBRARY_JOYSTICK_STATE \
+        GLFW_COCOA_LIBRARY_JOYSTICK_STATE \
+        GLFW_LINUX_LIBRARY_JOYSTICK_STATE
+
+#define GLFW_PLATFORM_CONTEXT_STATE \
+        GLFW_WGL_CONTEXT_STATE \
+        GLFW_NSGL_CONTEXT_STATE \
+        GLFW_GLX_CONTEXT_STATE
+
+#define GLFW_PLATFORM_LIBRARY_CONTEXT_STATE \
+        GLFW_WGL_LIBRARY_CONTEXT_STATE \
+        GLFW_NSGL_LIBRARY_CONTEXT_STATE \
+        GLFW_GLX_LIBRARY_CONTEXT_STATE
+
+#if defined(_WIN32)
+ #define GLFW_BUILD_WIN32_THREAD
+#else
+ #define GLFW_BUILD_POSIX_THREAD
+#endif
+
+#if defined(GLFW_BUILD_WIN32_THREAD)
+ #include "win32_thread.h"
+ #define GLFW_PLATFORM_TLS_STATE    GLFW_WIN32_TLS_STATE
+ #define GLFW_PLATFORM_MUTEX_STATE  GLFW_WIN32_MUTEX_STATE
+#elif defined(GLFW_BUILD_POSIX_THREAD)
+ #include "posix_thread.h"
+ #define GLFW_PLATFORM_TLS_STATE    GLFW_POSIX_TLS_STATE
+ #define GLFW_PLATFORM_MUTEX_STATE  GLFW_POSIX_MUTEX_STATE
+#endif
+
+#if defined(_WIN32)
+ #define GLFW_BUILD_WIN32_TIMER
+#elif defined(__APPLE__)
+ #define GLFW_BUILD_COCOA_TIMER
+#else
+ #define GLFW_BUILD_POSIX_TIMER
+#endif
+
+#if defined(GLFW_BUILD_WIN32_TIMER)
+ #include "win32_time.h"
+ #define GLFW_PLATFORM_LIBRARY_TIMER_STATE  GLFW_WIN32_LIBRARY_TIMER_STATE
+#elif defined(GLFW_BUILD_COCOA_TIMER)
+ #include "cocoa_time.h"
+ #define GLFW_PLATFORM_LIBRARY_TIMER_STATE  GLFW_COCOA_LIBRARY_TIMER_STATE
+#elif defined(GLFW_BUILD_POSIX_TIMER)
+ #include "posix_time.h"
+ #define GLFW_PLATFORM_LIBRARY_TIMER_STATE  GLFW_POSIX_LIBRARY_TIMER_STATE
+#endif
+
+#if defined(_WIN32)
+ #define GLFW_BUILD_WIN32_MODULE
+#else
+ #define GLFW_BUILD_POSIX_MODULE
+#endif
+
+#if defined(_GLFW_WAYLAND) || defined(_GLFW_X11)
+ #define GLFW_BUILD_POSIX_POLL
+#endif
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_module.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_module.c
new file mode 100644
index 000000000000..b3482d26c0b0
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_module.c
@@ -0,0 +1,53 @@
+//========================================================================
+// GLFW 3.5 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2021 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_POSIX_MODULE)
+
+#include <dlfcn.h>
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void* _glfwPlatformLoadModule(const char* path)
+{
+    return dlopen(path, RTLD_LAZY | RTLD_LOCAL);
+}
+
+void _glfwPlatformFreeModule(void* module)
+{
+    dlclose(module);
+}
+
+GLFWproc _glfwPlatformGetModuleSymbol(void* module, const char* name)
+{
+    return dlsym(module, name);
+}
+
+#endif // GLFW_BUILD_POSIX_MODULE
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_poll.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_poll.c
new file mode 100644
index 000000000000..595cf71736e1
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_poll.c
@@ -0,0 +1,83 @@
+//========================================================================
+// GLFW 3.5 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2022 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define _GNU_SOURCE
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_POSIX_POLL)
+
+#include <signal.h>
+#include <time.h>
+#include <errno.h>
+
+GLFWbool _glfwPollPOSIX(struct pollfd* fds, nfds_t count, double* timeout)
+{
+    for (;;)
+    {
+        if (timeout)
+        {
+            const uint64_t base = _glfwPlatformGetTimerValue();
+
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__CYGWIN__)
+            const time_t seconds = (time_t) *timeout;
+            const long nanoseconds = (long) ((*timeout - seconds) * 1e9);
+            const struct timespec ts = { seconds, nanoseconds };
+            const int result = ppoll(fds, count, &ts, NULL);
+#elif defined(__NetBSD__)
+            const time_t seconds = (time_t) *timeout;
+            const long nanoseconds = (long) ((*timeout - seconds) * 1e9);
+            const struct timespec ts = { seconds, nanoseconds };
+            const int result = pollts(fds, count, &ts, NULL);
+#else
+            const int milliseconds = (int) (*timeout * 1e3);
+            const int result = poll(fds, count, milliseconds);
+#endif
+            const int error = errno; // clock_gettime may overwrite our error
+
+            *timeout -= (_glfwPlatformGetTimerValue() - base) /
+                (double) _glfwPlatformGetTimerFrequency();
+
+            if (result > 0)
+                return GLFW_TRUE;
+            else if (result == -1 && error != EINTR && error != EAGAIN)
+                return GLFW_FALSE;
+            else if (*timeout <= 0.0)
+                return GLFW_FALSE;
+        }
+        else
+        {
+            const int result = poll(fds, count, -1);
+            if (result > 0)
+                return GLFW_TRUE;
+            else if (result == -1 && errno != EINTR && errno != EAGAIN)
+                return GLFW_FALSE;
+        }
+    }
+}
+
+#endif // GLFW_BUILD_POSIX_POLL
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_poll.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_poll.h
new file mode 100644
index 000000000000..a0ef3962530a
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_poll.h
@@ -0,0 +1,30 @@
+//========================================================================
+// GLFW 3.5 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2022 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <poll.h>
+
+GLFWbool _glfwPollPOSIX(struct pollfd* fds, nfds_t count, double* timeout);
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_thread.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_thread.c
new file mode 100644
index 000000000000..bab74d4f2d4b
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_thread.c
@@ -0,0 +1,107 @@
+//========================================================================
+// GLFW 3.5 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_POSIX_THREAD)
+
+#include <assert.h>
+#include <string.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwPlatformCreateTls(_GLFWtls* tls)
+{
+    assert(tls->posix.allocated == GLFW_FALSE);
+
+    if (pthread_key_create(&tls->posix.key, NULL) != 0)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "POSIX: Failed to create context TLS");
+        return GLFW_FALSE;
+    }
+
+    tls->posix.allocated = GLFW_TRUE;
+    return GLFW_TRUE;
+}
+
+void _glfwPlatformDestroyTls(_GLFWtls* tls)
+{
+    if (tls->posix.allocated)
+        pthread_key_delete(tls->posix.key);
+    memset(tls, 0, sizeof(_GLFWtls));
+}
+
+void* _glfwPlatformGetTls(_GLFWtls* tls)
+{
+    assert(tls->posix.allocated == GLFW_TRUE);
+    return pthread_getspecific(tls->posix.key);
+}
+
+void _glfwPlatformSetTls(_GLFWtls* tls, void* value)
+{
+    assert(tls->posix.allocated == GLFW_TRUE);
+    pthread_setspecific(tls->posix.key, value);
+}
+
+GLFWbool _glfwPlatformCreateMutex(_GLFWmutex* mutex)
+{
+    assert(mutex->posix.allocated == GLFW_FALSE);
+
+    if (pthread_mutex_init(&mutex->posix.handle, NULL) != 0)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "POSIX: Failed to create mutex");
+        return GLFW_FALSE;
+    }
+
+    return mutex->posix.allocated = GLFW_TRUE;
+}
+
+void _glfwPlatformDestroyMutex(_GLFWmutex* mutex)
+{
+    if (mutex->posix.allocated)
+        pthread_mutex_destroy(&mutex->posix.handle);
+    memset(mutex, 0, sizeof(_GLFWmutex));
+}
+
+void _glfwPlatformLockMutex(_GLFWmutex* mutex)
+{
+    assert(mutex->posix.allocated == GLFW_TRUE);
+    pthread_mutex_lock(&mutex->posix.handle);
+}
+
+void _glfwPlatformUnlockMutex(_GLFWmutex* mutex)
+{
+    assert(mutex->posix.allocated == GLFW_TRUE);
+    pthread_mutex_unlock(&mutex->posix.handle);
+}
+
+#endif // GLFW_BUILD_POSIX_THREAD
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_thread.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_thread.h
new file mode 100644
index 000000000000..ce298a8b4664
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_thread.h
@@ -0,0 +1,49 @@
+//========================================================================
+// GLFW 3.5 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <pthread.h>
+
+#define GLFW_POSIX_TLS_STATE    _GLFWtlsPOSIX   posix;
+#define GLFW_POSIX_MUTEX_STATE  _GLFWmutexPOSIX posix;
+
+
+// POSIX-specific thread local storage data
+//
+typedef struct _GLFWtlsPOSIX
+{
+    GLFWbool        allocated;
+    pthread_key_t   key;
+} _GLFWtlsPOSIX;
+
+// POSIX-specific mutex data
+//
+typedef struct _GLFWmutexPOSIX
+{
+    GLFWbool        allocated;
+    pthread_mutex_t handle;
+} _GLFWmutexPOSIX;
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_time.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_time.c
new file mode 100644
index 000000000000..4d7bd7cea88b
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_time.c
@@ -0,0 +1,65 @@
+//========================================================================
+// GLFW 3.5 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_POSIX_TIMER)
+
+#include <unistd.h>
+#include <sys/time.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwPlatformInitTimer(void)
+{
+    _glfw.timer.posix.clock = CLOCK_REALTIME;
+    _glfw.timer.posix.frequency = 1000000000;
+
+#if defined(_POSIX_MONOTONIC_CLOCK)
+    struct timespec ts;
+    if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0)
+        _glfw.timer.posix.clock = CLOCK_MONOTONIC;
+#endif
+}
+
+uint64_t _glfwPlatformGetTimerValue(void)
+{
+    struct timespec ts;
+    clock_gettime(_glfw.timer.posix.clock, &ts);
+    return (uint64_t) ts.tv_sec * _glfw.timer.posix.frequency + (uint64_t) ts.tv_nsec;
+}
+
+uint64_t _glfwPlatformGetTimerFrequency(void)
+{
+    return _glfw.timer.posix.frequency;
+}
+
+#endif // GLFW_BUILD_POSIX_TIMER
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_time.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_time.h
new file mode 100644
index 000000000000..39faa0fc44e5
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/posix_time.h
@@ -0,0 +1,41 @@
+//========================================================================
+// GLFW 3.5 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define GLFW_POSIX_LIBRARY_TIMER_STATE _GLFWtimerPOSIX posix;
+
+#include <stdint.h>
+#include <time.h>
+
+
+// POSIX-specific global timer data
+//
+typedef struct _GLFWtimerPOSIX
+{
+    clockid_t   clock;
+    uint64_t    frequency;
+} _GLFWtimerPOSIX;
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/vulkan.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/vulkan.c
new file mode 100644
index 000000000000..9c87fcfe1593
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/vulkan.c
@@ -0,0 +1,331 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define _GLFW_FIND_LOADER    1
+#define _GLFW_REQUIRE_LOADER 2
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwInitVulkan(int mode)
+{
+    VkResult err;
+    VkExtensionProperties* ep;
+    PFN_vkEnumerateInstanceExtensionProperties vkEnumerateInstanceExtensionProperties;
+    uint32_t i, count;
+
+    if (_glfw.vk.available)
+        return GLFW_TRUE;
+
+    if (_glfw.hints.init.vulkanLoader)
+        _glfw.vk.GetInstanceProcAddr = _glfw.hints.init.vulkanLoader;
+    else
+    {
+#if defined(_GLFW_VULKAN_LIBRARY)
+        _glfw.vk.handle = _glfwPlatformLoadModule(_GLFW_VULKAN_LIBRARY);
+#elif defined(_GLFW_WIN32)
+        _glfw.vk.handle = _glfwPlatformLoadModule("vulkan-1.dll");
+#elif defined(_GLFW_COCOA)
+        _glfw.vk.handle = _glfwPlatformLoadModule("libvulkan.1.dylib");
+        if (!_glfw.vk.handle)
+            _glfw.vk.handle = _glfwLoadLocalVulkanLoaderCocoa();
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+        _glfw.vk.handle = _glfwPlatformLoadModule("libvulkan.so");
+#else
+        _glfw.vk.handle = _glfwPlatformLoadModule("libvulkan.so.1");
+#endif
+        if (!_glfw.vk.handle)
+        {
+            if (mode == _GLFW_REQUIRE_LOADER)
+                _glfwInputError(GLFW_API_UNAVAILABLE, "Vulkan: Loader not found");
+
+            return GLFW_FALSE;
+        }
+
+        _glfw.vk.GetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)
+            _glfwPlatformGetModuleSymbol(_glfw.vk.handle, "vkGetInstanceProcAddr");
+        if (!_glfw.vk.GetInstanceProcAddr)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "Vulkan: Loader does not export vkGetInstanceProcAddr");
+
+            _glfwTerminateVulkan();
+            return GLFW_FALSE;
+        }
+    }
+
+    vkEnumerateInstanceExtensionProperties = (PFN_vkEnumerateInstanceExtensionProperties)
+        vkGetInstanceProcAddr(NULL, "vkEnumerateInstanceExtensionProperties");
+    if (!vkEnumerateInstanceExtensionProperties)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Vulkan: Failed to retrieve vkEnumerateInstanceExtensionProperties");
+
+        _glfwTerminateVulkan();
+        return GLFW_FALSE;
+    }
+
+    err = vkEnumerateInstanceExtensionProperties(NULL, &count, NULL);
+    if (err)
+    {
+        // NOTE: This happens on systems with a loader but without any Vulkan ICD
+        if (mode == _GLFW_REQUIRE_LOADER)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "Vulkan: Failed to query instance extension count: %s",
+                            _glfwGetVulkanResultString(err));
+        }
+
+        _glfwTerminateVulkan();
+        return GLFW_FALSE;
+    }
+
+    ep = _glfw_calloc(count, sizeof(VkExtensionProperties));
+
+    err = vkEnumerateInstanceExtensionProperties(NULL, &count, ep);
+    if (err)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Vulkan: Failed to query instance extensions: %s",
+                        _glfwGetVulkanResultString(err));
+
+        _glfw_free(ep);
+        _glfwTerminateVulkan();
+        return GLFW_FALSE;
+    }
+
+    for (i = 0;  i < count;  i++)
+    {
+        if (strcmp(ep[i].extensionName, "VK_KHR_surface") == 0)
+            _glfw.vk.KHR_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_KHR_win32_surface") == 0)
+            _glfw.vk.KHR_win32_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_MVK_macos_surface") == 0)
+            _glfw.vk.MVK_macos_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_EXT_metal_surface") == 0)
+            _glfw.vk.EXT_metal_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_KHR_xlib_surface") == 0)
+            _glfw.vk.KHR_xlib_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_KHR_xcb_surface") == 0)
+            _glfw.vk.KHR_xcb_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_KHR_wayland_surface") == 0)
+            _glfw.vk.KHR_wayland_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_EXT_headless_surface") == 0)
+            _glfw.vk.EXT_headless_surface = GLFW_TRUE;
+    }
+
+    _glfw_free(ep);
+
+    _glfw.vk.available = GLFW_TRUE;
+
+    _glfw.platform.getRequiredInstanceExtensions(_glfw.vk.extensions);
+
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateVulkan(void)
+{
+    if (_glfw.vk.handle)
+        _glfwPlatformFreeModule(_glfw.vk.handle);
+}
+
+const char* _glfwGetVulkanResultString(VkResult result)
+{
+    switch (result)
+    {
+        case VK_SUCCESS:
+            return "Success";
+        case VK_NOT_READY:
+            return "A fence or query has not yet completed";
+        case VK_TIMEOUT:
+            return "A wait operation has not completed in the specified time";
+        case VK_EVENT_SET:
+            return "An event is signaled";
+        case VK_EVENT_RESET:
+            return "An event is unsignaled";
+        case VK_INCOMPLETE:
+            return "A return array was too small for the result";
+        case VK_ERROR_OUT_OF_HOST_MEMORY:
+            return "A host memory allocation has failed";
+        case VK_ERROR_OUT_OF_DEVICE_MEMORY:
+            return "A device memory allocation has failed";
+        case VK_ERROR_INITIALIZATION_FAILED:
+            return "Initialization of an object could not be completed for implementation-specific reasons";
+        case VK_ERROR_DEVICE_LOST:
+            return "The logical or physical device has been lost";
+        case VK_ERROR_MEMORY_MAP_FAILED:
+            return "Mapping of a memory object has failed";
+        case VK_ERROR_LAYER_NOT_PRESENT:
+            return "A requested layer is not present or could not be loaded";
+        case VK_ERROR_EXTENSION_NOT_PRESENT:
+            return "A requested extension is not supported";
+        case VK_ERROR_FEATURE_NOT_PRESENT:
+            return "A requested feature is not supported";
+        case VK_ERROR_INCOMPATIBLE_DRIVER:
+            return "The requested version of Vulkan is not supported by the driver or is otherwise incompatible";
+        case VK_ERROR_TOO_MANY_OBJECTS:
+            return "Too many objects of the type have already been created";
+        case VK_ERROR_FORMAT_NOT_SUPPORTED:
+            return "A requested format is not supported on this device";
+        case VK_ERROR_SURFACE_LOST_KHR:
+            return "A surface is no longer available";
+        case VK_SUBOPTIMAL_KHR:
+            return "A swapchain no longer matches the surface properties exactly, but can still be used";
+        case VK_ERROR_OUT_OF_DATE_KHR:
+            return "A surface has changed in such a way that it is no longer compatible with the swapchain";
+        case VK_ERROR_INCOMPATIBLE_DISPLAY_KHR:
+            return "The display used by a swapchain does not use the same presentable image layout";
+        case VK_ERROR_NATIVE_WINDOW_IN_USE_KHR:
+            return "The requested window is already connected to a VkSurfaceKHR, or to some other non-Vulkan API";
+        case VK_ERROR_VALIDATION_FAILED_EXT:
+            return "A validation layer found an error";
+        default:
+            return "ERROR: UNKNOWN VULKAN ERROR";
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW public API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI int glfwVulkanSupported(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+    return _glfwInitVulkan(_GLFW_FIND_LOADER);
+}
+
+GLFWAPI const char** glfwGetRequiredInstanceExtensions(uint32_t* count)
+{
+    assert(count != NULL);
+
+    *count = 0;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
+        return NULL;
+
+    if (!_glfw.vk.extensions[0])
+        return NULL;
+
+    *count = 2;
+    return (const char**) _glfw.vk.extensions;
+}
+
+GLFWAPI GLFWvkproc glfwGetInstanceProcAddress(VkInstance instance,
+                                              const char* procname)
+{
+    GLFWvkproc proc;
+    assert(procname != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
+        return NULL;
+
+    // NOTE: Vulkan 1.0 and 1.1 vkGetInstanceProcAddr cannot return itself
+    if (strcmp(procname, "vkGetInstanceProcAddr") == 0)
+        return (GLFWvkproc) vkGetInstanceProcAddr;
+
+    proc = (GLFWvkproc) vkGetInstanceProcAddr(instance, procname);
+    if (!proc)
+    {
+        if (_glfw.vk.handle)
+            proc = (GLFWvkproc) _glfwPlatformGetModuleSymbol(_glfw.vk.handle, procname);
+    }
+
+    return proc;
+}
+
+GLFWAPI int glfwGetPhysicalDevicePresentationSupport(VkInstance instance,
+                                                     VkPhysicalDevice device,
+                                                     uint32_t queuefamily)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+
+    assert(instance != VK_NULL_HANDLE);
+    assert(device != VK_NULL_HANDLE);
+
+    if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
+        return GLFW_FALSE;
+
+    if (!_glfw.vk.extensions[0])
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Vulkan: Window surface creation extensions not found");
+        return GLFW_FALSE;
+    }
+
+    return _glfw.platform.getPhysicalDevicePresentationSupport(instance,
+                                                               device,
+                                                               queuefamily);
+}
+
+GLFWAPI VkResult glfwCreateWindowSurface(VkInstance instance,
+                                         GLFWwindow* handle,
+                                         const VkAllocationCallbacks* allocator,
+                                         VkSurfaceKHR* surface)
+{
+    assert(surface != NULL);
+
+    *surface = VK_NULL_HANDLE;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(VK_ERROR_INITIALIZATION_FAILED);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+    assert(instance != VK_NULL_HANDLE);
+
+    if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
+        return VK_ERROR_INITIALIZATION_FAILED;
+
+    if (!_glfw.vk.extensions[0])
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Vulkan: Window surface creation extensions not found");
+        return VK_ERROR_EXTENSION_NOT_PRESENT;
+    }
+
+    if (window->context.client != GLFW_NO_API)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE,
+                        "Vulkan: Window surface creation requires the window to have the client API set to GLFW_NO_API");
+        return VK_ERROR_NATIVE_WINDOW_IN_USE_KHR;
+    }
+
+    return _glfw.platform.createWindowSurface(instance, window, allocator, surface);
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wgl_context.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wgl_context.c
new file mode 100644
index 000000000000..1c9189fab28a
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wgl_context.c
@@ -0,0 +1,800 @@
+//========================================================================
+// GLFW 3.5 WGL - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_WIN32)
+
+#include <stdlib.h>
+#include <assert.h>
+
+// Return the value corresponding to the specified attribute
+//
+static int findPixelFormatAttribValueWGL(const int* attribs,
+                                         int attribCount,
+                                         const int* values,
+                                         int attrib)
+{
+    int i;
+
+    for (i = 0;  i < attribCount;  i++)
+    {
+        if (attribs[i] == attrib)
+            return values[i];
+    }
+
+    _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                         "WGL: Unknown pixel format attribute requested");
+    return 0;
+}
+
+#define ADD_ATTRIB(a) \
+{ \
+    assert((size_t) attribCount < sizeof(attribs) / sizeof(attribs[0])); \
+    attribs[attribCount++] = a; \
+}
+#define FIND_ATTRIB_VALUE(a) \
+    findPixelFormatAttribValueWGL(attribs, attribCount, values, a)
+
+// Return a list of available and usable framebuffer configs
+//
+static int choosePixelFormatWGL(_GLFWwindow* window,
+                                const _GLFWctxconfig* ctxconfig,
+                                const _GLFWfbconfig* fbconfig)
+{
+    _GLFWfbconfig* usableConfigs;
+    const _GLFWfbconfig* closest;
+    int i, pixelFormat, nativeCount, usableCount = 0, attribCount = 0;
+    int attribs[40];
+    int values[sizeof(attribs) / sizeof(attribs[0])];
+
+    nativeCount = DescribePixelFormat(window->context.wgl.dc,
+                                      1,
+                                      sizeof(PIXELFORMATDESCRIPTOR),
+                                      NULL);
+
+    if (_glfw.wgl.ARB_pixel_format)
+    {
+        ADD_ATTRIB(WGL_SUPPORT_OPENGL_ARB);
+        ADD_ATTRIB(WGL_DRAW_TO_WINDOW_ARB);
+        ADD_ATTRIB(WGL_PIXEL_TYPE_ARB);
+        ADD_ATTRIB(WGL_ACCELERATION_ARB);
+        ADD_ATTRIB(WGL_RED_BITS_ARB);
+        ADD_ATTRIB(WGL_RED_SHIFT_ARB);
+        ADD_ATTRIB(WGL_GREEN_BITS_ARB);
+        ADD_ATTRIB(WGL_GREEN_SHIFT_ARB);
+        ADD_ATTRIB(WGL_BLUE_BITS_ARB);
+        ADD_ATTRIB(WGL_BLUE_SHIFT_ARB);
+        ADD_ATTRIB(WGL_ALPHA_BITS_ARB);
+        ADD_ATTRIB(WGL_ALPHA_SHIFT_ARB);
+        ADD_ATTRIB(WGL_DEPTH_BITS_ARB);
+        ADD_ATTRIB(WGL_STENCIL_BITS_ARB);
+        ADD_ATTRIB(WGL_ACCUM_BITS_ARB);
+        ADD_ATTRIB(WGL_ACCUM_RED_BITS_ARB);
+        ADD_ATTRIB(WGL_ACCUM_GREEN_BITS_ARB);
+        ADD_ATTRIB(WGL_ACCUM_BLUE_BITS_ARB);
+        ADD_ATTRIB(WGL_ACCUM_ALPHA_BITS_ARB);
+        ADD_ATTRIB(WGL_AUX_BUFFERS_ARB);
+        ADD_ATTRIB(WGL_STEREO_ARB);
+        ADD_ATTRIB(WGL_DOUBLE_BUFFER_ARB);
+
+        if (_glfw.wgl.ARB_multisample)
+            ADD_ATTRIB(WGL_SAMPLES_ARB);
+
+        if (ctxconfig->client == GLFW_OPENGL_API)
+        {
+            if (_glfw.wgl.ARB_framebuffer_sRGB || _glfw.wgl.EXT_framebuffer_sRGB)
+                ADD_ATTRIB(WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB);
+        }
+        else
+        {
+            if (_glfw.wgl.EXT_colorspace)
+                ADD_ATTRIB(WGL_COLORSPACE_EXT);
+        }
+
+        // NOTE: In a Parallels VM WGL_ARB_pixel_format returns fewer pixel formats than
+        //       DescribePixelFormat, violating the guarantees of the extension spec
+        // HACK: Iterate through the minimum of both counts
+
+        const int attrib = WGL_NUMBER_PIXEL_FORMATS_ARB;
+        int extensionCount;
+
+        if (!wglGetPixelFormatAttribivARB(window->context.wgl.dc,
+                                          1, 0, 1, &attrib, &extensionCount))
+        {
+            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                 "WGL: Failed to retrieve pixel format attribute");
+            return 0;
+        }
+
+        nativeCount = _glfw_min(nativeCount, extensionCount);
+    }
+
+    usableConfigs = _glfw_calloc(nativeCount, sizeof(_GLFWfbconfig));
+
+    for (i = 0;  i < nativeCount;  i++)
+    {
+        _GLFWfbconfig* u = usableConfigs + usableCount;
+        pixelFormat = i + 1;
+
+        if (_glfw.wgl.ARB_pixel_format)
+        {
+            // Get pixel format attributes through "modern" extension
+
+            if (!wglGetPixelFormatAttribivARB(window->context.wgl.dc,
+                                              pixelFormat, 0,
+                                              attribCount,
+                                              attribs, values))
+            {
+                _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                    "WGL: Failed to retrieve pixel format attributes");
+
+                _glfw_free(usableConfigs);
+                return 0;
+            }
+
+            if (!FIND_ATTRIB_VALUE(WGL_SUPPORT_OPENGL_ARB) ||
+                !FIND_ATTRIB_VALUE(WGL_DRAW_TO_WINDOW_ARB))
+            {
+                continue;
+            }
+
+            if (FIND_ATTRIB_VALUE(WGL_PIXEL_TYPE_ARB) != WGL_TYPE_RGBA_ARB)
+                continue;
+
+            if (FIND_ATTRIB_VALUE(WGL_ACCELERATION_ARB) == WGL_NO_ACCELERATION_ARB)
+                continue;
+
+            if (FIND_ATTRIB_VALUE(WGL_DOUBLE_BUFFER_ARB) != fbconfig->doublebuffer)
+                continue;
+
+            u->redBits = FIND_ATTRIB_VALUE(WGL_RED_BITS_ARB);
+            u->greenBits = FIND_ATTRIB_VALUE(WGL_GREEN_BITS_ARB);
+            u->blueBits = FIND_ATTRIB_VALUE(WGL_BLUE_BITS_ARB);
+            u->alphaBits = FIND_ATTRIB_VALUE(WGL_ALPHA_BITS_ARB);
+
+            u->depthBits = FIND_ATTRIB_VALUE(WGL_DEPTH_BITS_ARB);
+            u->stencilBits = FIND_ATTRIB_VALUE(WGL_STENCIL_BITS_ARB);
+
+            u->accumRedBits = FIND_ATTRIB_VALUE(WGL_ACCUM_RED_BITS_ARB);
+            u->accumGreenBits = FIND_ATTRIB_VALUE(WGL_ACCUM_GREEN_BITS_ARB);
+            u->accumBlueBits = FIND_ATTRIB_VALUE(WGL_ACCUM_BLUE_BITS_ARB);
+            u->accumAlphaBits = FIND_ATTRIB_VALUE(WGL_ACCUM_ALPHA_BITS_ARB);
+
+            u->auxBuffers = FIND_ATTRIB_VALUE(WGL_AUX_BUFFERS_ARB);
+
+            if (FIND_ATTRIB_VALUE(WGL_STEREO_ARB))
+                u->stereo = GLFW_TRUE;
+
+            if (_glfw.wgl.ARB_multisample)
+                u->samples = FIND_ATTRIB_VALUE(WGL_SAMPLES_ARB);
+
+            if (ctxconfig->client == GLFW_OPENGL_API)
+            {
+                if (_glfw.wgl.ARB_framebuffer_sRGB ||
+                    _glfw.wgl.EXT_framebuffer_sRGB)
+                {
+                    if (FIND_ATTRIB_VALUE(WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB))
+                        u->sRGB = GLFW_TRUE;
+                }
+            }
+            else
+            {
+                if (_glfw.wgl.EXT_colorspace)
+                {
+                    if (FIND_ATTRIB_VALUE(WGL_COLORSPACE_EXT) == WGL_COLORSPACE_SRGB_EXT)
+                        u->sRGB = GLFW_TRUE;
+                }
+            }
+        }
+        else
+        {
+            // Get pixel format attributes through legacy PFDs
+
+            PIXELFORMATDESCRIPTOR pfd;
+
+            if (!DescribePixelFormat(window->context.wgl.dc,
+                                     pixelFormat,
+                                     sizeof(PIXELFORMATDESCRIPTOR),
+                                     &pfd))
+            {
+                _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                    "WGL: Failed to describe pixel format");
+
+                _glfw_free(usableConfigs);
+                return 0;
+            }
+
+            if (!(pfd.dwFlags & PFD_DRAW_TO_WINDOW) ||
+                !(pfd.dwFlags & PFD_SUPPORT_OPENGL))
+            {
+                continue;
+            }
+
+            if (!(pfd.dwFlags & PFD_GENERIC_ACCELERATED) &&
+                (pfd.dwFlags & PFD_GENERIC_FORMAT))
+            {
+                continue;
+            }
+
+            if (pfd.iPixelType != PFD_TYPE_RGBA)
+                continue;
+
+            if (!!(pfd.dwFlags & PFD_DOUBLEBUFFER) != fbconfig->doublebuffer)
+                continue;
+
+            u->redBits = pfd.cRedBits;
+            u->greenBits = pfd.cGreenBits;
+            u->blueBits = pfd.cBlueBits;
+            u->alphaBits = pfd.cAlphaBits;
+
+            u->depthBits = pfd.cDepthBits;
+            u->stencilBits = pfd.cStencilBits;
+
+            u->accumRedBits = pfd.cAccumRedBits;
+            u->accumGreenBits = pfd.cAccumGreenBits;
+            u->accumBlueBits = pfd.cAccumBlueBits;
+            u->accumAlphaBits = pfd.cAccumAlphaBits;
+
+            u->auxBuffers = pfd.cAuxBuffers;
+
+            if (pfd.dwFlags & PFD_STEREO)
+                u->stereo = GLFW_TRUE;
+        }
+
+        u->handle = pixelFormat;
+        usableCount++;
+    }
+
+    if (!usableCount)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "WGL: The driver does not appear to support OpenGL");
+
+        _glfw_free(usableConfigs);
+        return 0;
+    }
+
+    closest = _glfwChooseFBConfig(fbconfig, usableConfigs, usableCount);
+    if (!closest)
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "WGL: Failed to find a suitable pixel format");
+
+        _glfw_free(usableConfigs);
+        return 0;
+    }
+
+    pixelFormat = (int) closest->handle;
+    _glfw_free(usableConfigs);
+
+    return pixelFormat;
+}
+
+#undef ADD_ATTRIB
+#undef FIND_ATTRIB_VALUE
+
+static void makeContextCurrentWGL(_GLFWwindow* window)
+{
+    if (window)
+    {
+        if (wglMakeCurrent(window->context.wgl.dc, window->context.wgl.handle))
+            _glfwPlatformSetTls(&_glfw.contextSlot, window);
+        else
+        {
+            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                 "WGL: Failed to make context current");
+            _glfwPlatformSetTls(&_glfw.contextSlot, NULL);
+        }
+    }
+    else
+    {
+        if (!wglMakeCurrent(NULL, NULL))
+        {
+            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                 "WGL: Failed to clear current context");
+        }
+
+        _glfwPlatformSetTls(&_glfw.contextSlot, NULL);
+    }
+}
+
+static void swapBuffersWGL(_GLFWwindow* window)
+{
+    if (!window->monitor)
+    {
+        // HACK: Use DwmFlush when desktop composition is enabled on Windows Vista and 7
+        if (!IsWindows8OrGreater() && IsWindowsVistaOrGreater())
+        {
+            BOOL enabled = FALSE;
+
+            if (SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled)
+            {
+                int count = abs(window->context.wgl.interval);
+                while (count--)
+                    DwmFlush();
+            }
+        }
+    }
+
+    SwapBuffers(window->context.wgl.dc);
+}
+
+static void swapIntervalWGL(int interval)
+{
+    _GLFWwindow* window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    assert(window != NULL);
+
+    window->context.wgl.interval = interval;
+
+    if (!window->monitor)
+    {
+        // HACK: Disable WGL swap interval when desktop composition is enabled on Windows
+        //       Vista and 7 to avoid interfering with DWM vsync
+        if (!IsWindows8OrGreater() && IsWindowsVistaOrGreater())
+        {
+            BOOL enabled = FALSE;
+
+            if (SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled)
+                interval = 0;
+        }
+    }
+
+    if (_glfw.wgl.EXT_swap_control)
+        wglSwapIntervalEXT(interval);
+}
+
+static int extensionSupportedWGL(const char* extension)
+{
+    const char* extensions = NULL;
+
+    if (_glfw.wgl.GetExtensionsStringARB)
+        extensions = wglGetExtensionsStringARB(wglGetCurrentDC());
+    else if (_glfw.wgl.GetExtensionsStringEXT)
+        extensions = wglGetExtensionsStringEXT();
+
+    if (!extensions)
+        return GLFW_FALSE;
+
+    return _glfwStringInExtensionString(extension, extensions);
+}
+
+static GLFWglproc getProcAddressWGL(const char* procname)
+{
+    const GLFWglproc proc = (GLFWglproc) wglGetProcAddress(procname);
+    if (proc)
+        return proc;
+
+    return (GLFWglproc) _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, procname);
+}
+
+static void destroyContextWGL(_GLFWwindow* window)
+{
+    if (window->context.wgl.handle)
+    {
+        wglDeleteContext(window->context.wgl.handle);
+        window->context.wgl.handle = NULL;
+    }
+}
+
+// Initialize WGL
+//
+GLFWbool _glfwInitWGL(void)
+{
+    PIXELFORMATDESCRIPTOR pfd;
+    HGLRC prc, rc;
+    HDC pdc, dc;
+
+    if (_glfw.wgl.instance)
+        return GLFW_TRUE;
+
+    _glfw.wgl.instance = _glfwPlatformLoadModule("opengl32.dll");
+    if (!_glfw.wgl.instance)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "WGL: Failed to load opengl32.dll");
+        return GLFW_FALSE;
+    }
+
+    _glfw.wgl.CreateContext = (PFN_wglCreateContext)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglCreateContext");
+    _glfw.wgl.DeleteContext = (PFN_wglDeleteContext)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglDeleteContext");
+    _glfw.wgl.GetProcAddress = (PFN_wglGetProcAddress)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglGetProcAddress");
+    _glfw.wgl.GetCurrentDC = (PFN_wglGetCurrentDC)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglGetCurrentDC");
+    _glfw.wgl.GetCurrentContext = (PFN_wglGetCurrentContext)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglGetCurrentContext");
+    _glfw.wgl.MakeCurrent = (PFN_wglMakeCurrent)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglMakeCurrent");
+    _glfw.wgl.ShareLists = (PFN_wglShareLists)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglShareLists");
+
+    // NOTE: A dummy context has to be created for opengl32.dll to load the
+    //       OpenGL ICD, from which we can then query WGL extensions
+    // NOTE: This code will accept the Microsoft GDI ICD; accelerated context
+    //       creation failure occurs during manual pixel format enumeration
+
+    dc = GetDC(_glfw.win32.helperWindowHandle);
+
+    ZeroMemory(&pfd, sizeof(pfd));
+    pfd.nSize = sizeof(pfd);
+    pfd.nVersion = 1;
+    pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
+    pfd.iPixelType = PFD_TYPE_RGBA;
+    pfd.cColorBits = 24;
+
+    if (!SetPixelFormat(dc, ChoosePixelFormat(dc, &pfd), &pfd))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "WGL: Failed to set pixel format for dummy context");
+        return GLFW_FALSE;
+    }
+
+    rc = wglCreateContext(dc);
+    if (!rc)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "WGL: Failed to create dummy context");
+        return GLFW_FALSE;
+    }
+
+    pdc = wglGetCurrentDC();
+    prc = wglGetCurrentContext();
+
+    if (!wglMakeCurrent(dc, rc))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "WGL: Failed to make dummy context current");
+        wglMakeCurrent(pdc, prc);
+        wglDeleteContext(rc);
+        return GLFW_FALSE;
+    }
+
+    // NOTE: Functions must be loaded first as they're needed to retrieve the
+    //       extension string that tells us whether the functions are supported
+    _glfw.wgl.GetExtensionsStringEXT = (PFNWGLGETEXTENSIONSSTRINGEXTPROC)
+        wglGetProcAddress("wglGetExtensionsStringEXT");
+    _glfw.wgl.GetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC)
+        wglGetProcAddress("wglGetExtensionsStringARB");
+    _glfw.wgl.CreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)
+        wglGetProcAddress("wglCreateContextAttribsARB");
+    _glfw.wgl.SwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)
+        wglGetProcAddress("wglSwapIntervalEXT");
+    _glfw.wgl.GetPixelFormatAttribivARB = (PFNWGLGETPIXELFORMATATTRIBIVARBPROC)
+        wglGetProcAddress("wglGetPixelFormatAttribivARB");
+
+    // NOTE: WGL_ARB_extensions_string and WGL_EXT_extensions_string are not
+    //       checked below as we are already using them
+    _glfw.wgl.ARB_multisample =
+        extensionSupportedWGL("WGL_ARB_multisample");
+    _glfw.wgl.ARB_framebuffer_sRGB =
+        extensionSupportedWGL("WGL_ARB_framebuffer_sRGB");
+    _glfw.wgl.EXT_framebuffer_sRGB =
+        extensionSupportedWGL("WGL_EXT_framebuffer_sRGB");
+    _glfw.wgl.ARB_create_context =
+        extensionSupportedWGL("WGL_ARB_create_context");
+    _glfw.wgl.ARB_create_context_profile =
+        extensionSupportedWGL("WGL_ARB_create_context_profile");
+    _glfw.wgl.EXT_create_context_es2_profile =
+        extensionSupportedWGL("WGL_EXT_create_context_es2_profile");
+    _glfw.wgl.ARB_create_context_robustness =
+        extensionSupportedWGL("WGL_ARB_create_context_robustness");
+    _glfw.wgl.ARB_create_context_no_error =
+        extensionSupportedWGL("WGL_ARB_create_context_no_error");
+    _glfw.wgl.EXT_swap_control =
+        extensionSupportedWGL("WGL_EXT_swap_control");
+    _glfw.wgl.EXT_colorspace =
+        extensionSupportedWGL("WGL_EXT_colorspace");
+    _glfw.wgl.ARB_pixel_format =
+        extensionSupportedWGL("WGL_ARB_pixel_format");
+    _glfw.wgl.ARB_context_flush_control =
+        extensionSupportedWGL("WGL_ARB_context_flush_control");
+
+    wglMakeCurrent(pdc, prc);
+    wglDeleteContext(rc);
+    return GLFW_TRUE;
+}
+
+// Terminate WGL
+//
+void _glfwTerminateWGL(void)
+{
+    if (_glfw.wgl.instance)
+        _glfwPlatformFreeModule(_glfw.wgl.instance);
+}
+
+#define SET_ATTRIB(a, v) \
+{ \
+    assert(((size_t) index + 1) < sizeof(attribs) / sizeof(attribs[0])); \
+    attribs[index++] = a; \
+    attribs[index++] = v; \
+}
+
+// Create the OpenGL or OpenGL ES context
+//
+GLFWbool _glfwCreateContextWGL(_GLFWwindow* window,
+                               const _GLFWctxconfig* ctxconfig,
+                               const _GLFWfbconfig* fbconfig)
+{
+    int attribs[40];
+    int pixelFormat;
+    PIXELFORMATDESCRIPTOR pfd;
+    HGLRC share = NULL;
+
+    if (ctxconfig->share)
+        share = ctxconfig->share->context.wgl.handle;
+
+    window->context.wgl.dc = GetDC(window->win32.handle);
+    if (!window->context.wgl.dc)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "WGL: Failed to retrieve DC for window");
+        return GLFW_FALSE;
+    }
+
+    pixelFormat = choosePixelFormatWGL(window, ctxconfig, fbconfig);
+    if (!pixelFormat)
+        return GLFW_FALSE;
+
+    if (!DescribePixelFormat(window->context.wgl.dc,
+                             pixelFormat, sizeof(pfd), &pfd))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "WGL: Failed to retrieve PFD for selected pixel format");
+        return GLFW_FALSE;
+    }
+
+    if (!SetPixelFormat(window->context.wgl.dc, pixelFormat, &pfd))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "WGL: Failed to set selected pixel format");
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->client == GLFW_OPENGL_API)
+    {
+        if (ctxconfig->forward)
+        {
+            if (!_glfw.wgl.ARB_create_context)
+            {
+                _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                "WGL: A forward compatible OpenGL context requested but WGL_ARB_create_context is unavailable");
+                return GLFW_FALSE;
+            }
+        }
+
+        if (ctxconfig->profile)
+        {
+            if (!_glfw.wgl.ARB_create_context_profile)
+            {
+                _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                "WGL: OpenGL profile requested but WGL_ARB_create_context_profile is unavailable");
+                return GLFW_FALSE;
+            }
+        }
+    }
+    else
+    {
+        if (!_glfw.wgl.ARB_create_context ||
+            !_glfw.wgl.ARB_create_context_profile ||
+            !_glfw.wgl.EXT_create_context_es2_profile)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "WGL: OpenGL ES requested but WGL_ARB_create_context_es2_profile is unavailable");
+            return GLFW_FALSE;
+        }
+    }
+
+    if (_glfw.wgl.ARB_create_context)
+    {
+        int index = 0, mask = 0, flags = 0;
+
+        if (ctxconfig->client == GLFW_OPENGL_API)
+        {
+            if (ctxconfig->forward)
+                flags |= WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
+
+            if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
+                mask |= WGL_CONTEXT_CORE_PROFILE_BIT_ARB;
+            else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
+                mask |= WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
+        }
+        else
+            mask |= WGL_CONTEXT_ES2_PROFILE_BIT_EXT;
+
+        if (ctxconfig->debug)
+            flags |= WGL_CONTEXT_DEBUG_BIT_ARB;
+
+        if (ctxconfig->robustness)
+        {
+            if (_glfw.wgl.ARB_create_context_robustness)
+            {
+                if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
+                {
+                    SET_ATTRIB(WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
+                               WGL_NO_RESET_NOTIFICATION_ARB);
+                }
+                else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
+                {
+                    SET_ATTRIB(WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
+                               WGL_LOSE_CONTEXT_ON_RESET_ARB);
+                }
+
+                flags |= WGL_CONTEXT_ROBUST_ACCESS_BIT_ARB;
+            }
+        }
+
+        if (ctxconfig->release)
+        {
+            if (_glfw.wgl.ARB_context_flush_control)
+            {
+                if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE)
+                {
+                    SET_ATTRIB(WGL_CONTEXT_RELEASE_BEHAVIOR_ARB,
+                               WGL_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB);
+                }
+                else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
+                {
+                    SET_ATTRIB(WGL_CONTEXT_RELEASE_BEHAVIOR_ARB,
+                               WGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB);
+                }
+            }
+        }
+
+        if (ctxconfig->noerror)
+        {
+            if (_glfw.wgl.ARB_create_context_no_error)
+                SET_ATTRIB(WGL_CONTEXT_OPENGL_NO_ERROR_ARB, GLFW_TRUE);
+        }
+
+        // NOTE: Only request an explicitly versioned context when necessary, as
+        //       explicitly requesting version 1.0 does not always return the
+        //       highest version supported by the driver
+        if (ctxconfig->major != 1 || ctxconfig->minor != 0)
+        {
+            SET_ATTRIB(WGL_CONTEXT_MAJOR_VERSION_ARB, ctxconfig->major);
+            SET_ATTRIB(WGL_CONTEXT_MINOR_VERSION_ARB, ctxconfig->minor);
+        }
+
+        if (flags)
+            SET_ATTRIB(WGL_CONTEXT_FLAGS_ARB, flags);
+
+        if (mask)
+            SET_ATTRIB(WGL_CONTEXT_PROFILE_MASK_ARB, mask);
+
+        SET_ATTRIB(0, 0);
+
+        window->context.wgl.handle =
+            wglCreateContextAttribsARB(window->context.wgl.dc, share, attribs);
+        if (!window->context.wgl.handle)
+        {
+            const DWORD error = GetLastError();
+
+            if (error == (0xc0070000 | ERROR_INVALID_VERSION_ARB))
+            {
+                if (ctxconfig->client == GLFW_OPENGL_API)
+                {
+                    _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                    "WGL: Driver does not support OpenGL version %i.%i",
+                                    ctxconfig->major,
+                                    ctxconfig->minor);
+                }
+                else
+                {
+                    _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                    "WGL: Driver does not support OpenGL ES version %i.%i",
+                                    ctxconfig->major,
+                                    ctxconfig->minor);
+                }
+            }
+            else if (error == (0xc0070000 | ERROR_INVALID_PROFILE_ARB))
+            {
+                _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                "WGL: Driver does not support the requested OpenGL profile");
+            }
+            else if (error == (0xc0070000 | ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB))
+            {
+                _glfwInputError(GLFW_INVALID_VALUE,
+                                "WGL: The share context is not compatible with the requested context");
+            }
+            else
+            {
+                if (ctxconfig->client == GLFW_OPENGL_API)
+                {
+                    _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                    "WGL: Failed to create OpenGL context");
+                }
+                else
+                {
+                    _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                    "WGL: Failed to create OpenGL ES context");
+                }
+            }
+
+            return GLFW_FALSE;
+        }
+    }
+    else
+    {
+        window->context.wgl.handle = wglCreateContext(window->context.wgl.dc);
+        if (!window->context.wgl.handle)
+        {
+            _glfwInputErrorWin32(GLFW_VERSION_UNAVAILABLE,
+                                 "WGL: Failed to create OpenGL context");
+            return GLFW_FALSE;
+        }
+
+        if (share)
+        {
+            if (!wglShareLists(share, window->context.wgl.handle))
+            {
+                _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                     "WGL: Failed to enable sharing with specified OpenGL context");
+                return GLFW_FALSE;
+            }
+        }
+    }
+
+    window->context.makeCurrent = makeContextCurrentWGL;
+    window->context.swapBuffers = swapBuffersWGL;
+    window->context.swapInterval = swapIntervalWGL;
+    window->context.extensionSupported = extensionSupportedWGL;
+    window->context.getProcAddress = getProcAddressWGL;
+    window->context.destroy = destroyContextWGL;
+
+    return GLFW_TRUE;
+}
+
+#undef SET_ATTRIB
+
+GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_WIN32)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE,
+                        "WGL: Platform not initialized");
+        return NULL;
+    }
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->context.source != GLFW_NATIVE_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return NULL;
+    }
+
+    return window->context.wgl.handle;
+}
+
+#endif // _GLFW_WIN32
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_init.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_init.c
new file mode 100644
index 000000000000..77ab56babe93
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_init.c
@@ -0,0 +1,731 @@
+//========================================================================
+// GLFW 3.5 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_WIN32)
+
+#include <stdlib.h>
+
+static const GUID _glfw_GUID_DEVINTERFACE_HID =
+    {0x4d1e55b2,0xf16f,0x11cf,{0x88,0xcb,0x00,0x11,0x11,0x00,0x00,0x30}};
+
+#define GUID_DEVINTERFACE_HID _glfw_GUID_DEVINTERFACE_HID
+
+#if defined(_GLFW_USE_HYBRID_HPG) || defined(_GLFW_USE_OPTIMUS_HPG)
+
+#if defined(_GLFW_BUILD_DLL)
+ #pragma message("These symbols must be exported by the executable and have no effect in a DLL")
+#endif
+
+// Executables (but not DLLs) exporting this symbol with this value will be
+// automatically directed to the high-performance GPU on Nvidia Optimus systems
+// with up-to-date drivers
+//
+__declspec(dllexport) DWORD NvOptimusEnablement = 1;
+
+// Executables (but not DLLs) exporting this symbol with this value will be
+// automatically directed to the high-performance GPU on AMD PowerXpress systems
+// with up-to-date drivers
+//
+__declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
+
+#endif // _GLFW_USE_HYBRID_HPG
+
+#if defined(_GLFW_BUILD_DLL)
+
+// GLFW DLL entry point
+//
+BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
+{
+    return TRUE;
+}
+
+#endif // _GLFW_BUILD_DLL
+
+// Load necessary libraries (DLLs)
+//
+static GLFWbool loadLibraries(void)
+{
+    if (!GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
+                                GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
+                            (const WCHAR*) &_glfw,
+                            (HMODULE*) &_glfw.win32.instance))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to retrieve own module handle");
+        return GLFW_FALSE;
+    }
+
+    _glfw.win32.user32.instance = _glfwPlatformLoadModule("user32.dll");
+    if (!_glfw.win32.user32.instance)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to load user32.dll");
+        return GLFW_FALSE;
+    }
+
+    _glfw.win32.user32.SetProcessDPIAware_ = (PFN_SetProcessDPIAware)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "SetProcessDPIAware");
+    _glfw.win32.user32.ChangeWindowMessageFilterEx_ = (PFN_ChangeWindowMessageFilterEx)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "ChangeWindowMessageFilterEx");
+    _glfw.win32.user32.EnableNonClientDpiScaling_ = (PFN_EnableNonClientDpiScaling)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "EnableNonClientDpiScaling");
+    _glfw.win32.user32.SetProcessDpiAwarenessContext_ = (PFN_SetProcessDpiAwarenessContext)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "SetProcessDpiAwarenessContext");
+    _glfw.win32.user32.GetDpiForWindow_ = (PFN_GetDpiForWindow)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "GetDpiForWindow");
+    _glfw.win32.user32.AdjustWindowRectExForDpi_ = (PFN_AdjustWindowRectExForDpi)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "AdjustWindowRectExForDpi");
+    _glfw.win32.user32.GetSystemMetricsForDpi_ = (PFN_GetSystemMetricsForDpi)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "GetSystemMetricsForDpi");
+
+    _glfw.win32.dinput8.instance = _glfwPlatformLoadModule("dinput8.dll");
+    if (_glfw.win32.dinput8.instance)
+    {
+        _glfw.win32.dinput8.Create = (PFN_DirectInput8Create)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.dinput8.instance, "DirectInput8Create");
+    }
+
+    {
+        int i;
+        const char* names[] =
+        {
+            "xinput1_4.dll",
+            "xinput1_3.dll",
+            "xinput9_1_0.dll",
+            "xinput1_2.dll",
+            "xinput1_1.dll",
+            NULL
+        };
+
+        for (i = 0;  names[i];  i++)
+        {
+            _glfw.win32.xinput.instance = _glfwPlatformLoadModule(names[i]);
+            if (_glfw.win32.xinput.instance)
+            {
+                _glfw.win32.xinput.GetCapabilities = (PFN_XInputGetCapabilities)
+                    _glfwPlatformGetModuleSymbol(_glfw.win32.xinput.instance, "XInputGetCapabilities");
+                _glfw.win32.xinput.GetState = (PFN_XInputGetState)
+                    _glfwPlatformGetModuleSymbol(_glfw.win32.xinput.instance, "XInputGetState");
+
+                break;
+            }
+        }
+    }
+
+    _glfw.win32.dwmapi.instance = _glfwPlatformLoadModule("dwmapi.dll");
+    if (_glfw.win32.dwmapi.instance)
+    {
+        _glfw.win32.dwmapi.IsCompositionEnabled = (PFN_DwmIsCompositionEnabled)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.dwmapi.instance, "DwmIsCompositionEnabled");
+        _glfw.win32.dwmapi.Flush = (PFN_DwmFlush)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.dwmapi.instance, "DwmFlush");
+        _glfw.win32.dwmapi.EnableBlurBehindWindow = (PFN_DwmEnableBlurBehindWindow)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.dwmapi.instance, "DwmEnableBlurBehindWindow");
+        _glfw.win32.dwmapi.GetColorizationColor = (PFN_DwmGetColorizationColor)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.dwmapi.instance, "DwmGetColorizationColor");
+    }
+
+    _glfw.win32.shcore.instance = _glfwPlatformLoadModule("shcore.dll");
+    if (_glfw.win32.shcore.instance)
+    {
+        _glfw.win32.shcore.SetProcessDpiAwareness_ = (PFN_SetProcessDpiAwareness)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.shcore.instance, "SetProcessDpiAwareness");
+        _glfw.win32.shcore.GetDpiForMonitor_ = (PFN_GetDpiForMonitor)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.shcore.instance, "GetDpiForMonitor");
+    }
+
+    _glfw.win32.ntdll.instance = _glfwPlatformLoadModule("ntdll.dll");
+    if (_glfw.win32.ntdll.instance)
+    {
+        _glfw.win32.ntdll.RtlVerifyVersionInfo_ = (PFN_RtlVerifyVersionInfo)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.ntdll.instance, "RtlVerifyVersionInfo");
+    }
+
+    return GLFW_TRUE;
+}
+
+// Unload used libraries (DLLs)
+//
+static void freeLibraries(void)
+{
+    if (_glfw.win32.xinput.instance)
+        _glfwPlatformFreeModule(_glfw.win32.xinput.instance);
+
+    if (_glfw.win32.dinput8.instance)
+        _glfwPlatformFreeModule(_glfw.win32.dinput8.instance);
+
+    if (_glfw.win32.user32.instance)
+        _glfwPlatformFreeModule(_glfw.win32.user32.instance);
+
+    if (_glfw.win32.dwmapi.instance)
+        _glfwPlatformFreeModule(_glfw.win32.dwmapi.instance);
+
+    if (_glfw.win32.shcore.instance)
+        _glfwPlatformFreeModule(_glfw.win32.shcore.instance);
+
+    if (_glfw.win32.ntdll.instance)
+        _glfwPlatformFreeModule(_glfw.win32.ntdll.instance);
+}
+
+// Create key code translation tables
+//
+static void createKeyTables(void)
+{
+    int scancode;
+
+    memset(_glfw.win32.keycodes, -1, sizeof(_glfw.win32.keycodes));
+    memset(_glfw.win32.scancodes, -1, sizeof(_glfw.win32.scancodes));
+
+    _glfw.win32.keycodes[0x00B] = GLFW_KEY_0;
+    _glfw.win32.keycodes[0x002] = GLFW_KEY_1;
+    _glfw.win32.keycodes[0x003] = GLFW_KEY_2;
+    _glfw.win32.keycodes[0x004] = GLFW_KEY_3;
+    _glfw.win32.keycodes[0x005] = GLFW_KEY_4;
+    _glfw.win32.keycodes[0x006] = GLFW_KEY_5;
+    _glfw.win32.keycodes[0x007] = GLFW_KEY_6;
+    _glfw.win32.keycodes[0x008] = GLFW_KEY_7;
+    _glfw.win32.keycodes[0x009] = GLFW_KEY_8;
+    _glfw.win32.keycodes[0x00A] = GLFW_KEY_9;
+    _glfw.win32.keycodes[0x01E] = GLFW_KEY_A;
+    _glfw.win32.keycodes[0x030] = GLFW_KEY_B;
+    _glfw.win32.keycodes[0x02E] = GLFW_KEY_C;
+    _glfw.win32.keycodes[0x020] = GLFW_KEY_D;
+    _glfw.win32.keycodes[0x012] = GLFW_KEY_E;
+    _glfw.win32.keycodes[0x021] = GLFW_KEY_F;
+    _glfw.win32.keycodes[0x022] = GLFW_KEY_G;
+    _glfw.win32.keycodes[0x023] = GLFW_KEY_H;
+    _glfw.win32.keycodes[0x017] = GLFW_KEY_I;
+    _glfw.win32.keycodes[0x024] = GLFW_KEY_J;
+    _glfw.win32.keycodes[0x025] = GLFW_KEY_K;
+    _glfw.win32.keycodes[0x026] = GLFW_KEY_L;
+    _glfw.win32.keycodes[0x032] = GLFW_KEY_M;
+    _glfw.win32.keycodes[0x031] = GLFW_KEY_N;
+    _glfw.win32.keycodes[0x018] = GLFW_KEY_O;
+    _glfw.win32.keycodes[0x019] = GLFW_KEY_P;
+    _glfw.win32.keycodes[0x010] = GLFW_KEY_Q;
+    _glfw.win32.keycodes[0x013] = GLFW_KEY_R;
+    _glfw.win32.keycodes[0x01F] = GLFW_KEY_S;
+    _glfw.win32.keycodes[0x014] = GLFW_KEY_T;
+    _glfw.win32.keycodes[0x016] = GLFW_KEY_U;
+    _glfw.win32.keycodes[0x02F] = GLFW_KEY_V;
+    _glfw.win32.keycodes[0x011] = GLFW_KEY_W;
+    _glfw.win32.keycodes[0x02D] = GLFW_KEY_X;
+    _glfw.win32.keycodes[0x015] = GLFW_KEY_Y;
+    _glfw.win32.keycodes[0x02C] = GLFW_KEY_Z;
+
+    _glfw.win32.keycodes[0x028] = GLFW_KEY_APOSTROPHE;
+    _glfw.win32.keycodes[0x02B] = GLFW_KEY_BACKSLASH;
+    _glfw.win32.keycodes[0x033] = GLFW_KEY_COMMA;
+    _glfw.win32.keycodes[0x00D] = GLFW_KEY_EQUAL;
+    _glfw.win32.keycodes[0x029] = GLFW_KEY_GRAVE_ACCENT;
+    _glfw.win32.keycodes[0x01A] = GLFW_KEY_LEFT_BRACKET;
+    _glfw.win32.keycodes[0x00C] = GLFW_KEY_MINUS;
+    _glfw.win32.keycodes[0x034] = GLFW_KEY_PERIOD;
+    _glfw.win32.keycodes[0x01B] = GLFW_KEY_RIGHT_BRACKET;
+    _glfw.win32.keycodes[0x027] = GLFW_KEY_SEMICOLON;
+    _glfw.win32.keycodes[0x035] = GLFW_KEY_SLASH;
+    _glfw.win32.keycodes[0x056] = GLFW_KEY_WORLD_2;
+
+    _glfw.win32.keycodes[0x00E] = GLFW_KEY_BACKSPACE;
+    _glfw.win32.keycodes[0x153] = GLFW_KEY_DELETE;
+    _glfw.win32.keycodes[0x14F] = GLFW_KEY_END;
+    _glfw.win32.keycodes[0x01C] = GLFW_KEY_ENTER;
+    _glfw.win32.keycodes[0x001] = GLFW_KEY_ESCAPE;
+    _glfw.win32.keycodes[0x147] = GLFW_KEY_HOME;
+    _glfw.win32.keycodes[0x152] = GLFW_KEY_INSERT;
+    _glfw.win32.keycodes[0x15D] = GLFW_KEY_MENU;
+    _glfw.win32.keycodes[0x151] = GLFW_KEY_PAGE_DOWN;
+    _glfw.win32.keycodes[0x149] = GLFW_KEY_PAGE_UP;
+    _glfw.win32.keycodes[0x045] = GLFW_KEY_PAUSE;
+    _glfw.win32.keycodes[0x039] = GLFW_KEY_SPACE;
+    _glfw.win32.keycodes[0x00F] = GLFW_KEY_TAB;
+    _glfw.win32.keycodes[0x03A] = GLFW_KEY_CAPS_LOCK;
+    _glfw.win32.keycodes[0x145] = GLFW_KEY_NUM_LOCK;
+    _glfw.win32.keycodes[0x046] = GLFW_KEY_SCROLL_LOCK;
+    _glfw.win32.keycodes[0x03B] = GLFW_KEY_F1;
+    _glfw.win32.keycodes[0x03C] = GLFW_KEY_F2;
+    _glfw.win32.keycodes[0x03D] = GLFW_KEY_F3;
+    _glfw.win32.keycodes[0x03E] = GLFW_KEY_F4;
+    _glfw.win32.keycodes[0x03F] = GLFW_KEY_F5;
+    _glfw.win32.keycodes[0x040] = GLFW_KEY_F6;
+    _glfw.win32.keycodes[0x041] = GLFW_KEY_F7;
+    _glfw.win32.keycodes[0x042] = GLFW_KEY_F8;
+    _glfw.win32.keycodes[0x043] = GLFW_KEY_F9;
+    _glfw.win32.keycodes[0x044] = GLFW_KEY_F10;
+    _glfw.win32.keycodes[0x057] = GLFW_KEY_F11;
+    _glfw.win32.keycodes[0x058] = GLFW_KEY_F12;
+    _glfw.win32.keycodes[0x064] = GLFW_KEY_F13;
+    _glfw.win32.keycodes[0x065] = GLFW_KEY_F14;
+    _glfw.win32.keycodes[0x066] = GLFW_KEY_F15;
+    _glfw.win32.keycodes[0x067] = GLFW_KEY_F16;
+    _glfw.win32.keycodes[0x068] = GLFW_KEY_F17;
+    _glfw.win32.keycodes[0x069] = GLFW_KEY_F18;
+    _glfw.win32.keycodes[0x06A] = GLFW_KEY_F19;
+    _glfw.win32.keycodes[0x06B] = GLFW_KEY_F20;
+    _glfw.win32.keycodes[0x06C] = GLFW_KEY_F21;
+    _glfw.win32.keycodes[0x06D] = GLFW_KEY_F22;
+    _glfw.win32.keycodes[0x06E] = GLFW_KEY_F23;
+    _glfw.win32.keycodes[0x076] = GLFW_KEY_F24;
+    _glfw.win32.keycodes[0x038] = GLFW_KEY_LEFT_ALT;
+    _glfw.win32.keycodes[0x01D] = GLFW_KEY_LEFT_CONTROL;
+    _glfw.win32.keycodes[0x02A] = GLFW_KEY_LEFT_SHIFT;
+    _glfw.win32.keycodes[0x15B] = GLFW_KEY_LEFT_SUPER;
+    _glfw.win32.keycodes[0x137] = GLFW_KEY_PRINT_SCREEN;
+    _glfw.win32.keycodes[0x138] = GLFW_KEY_RIGHT_ALT;
+    _glfw.win32.keycodes[0x11D] = GLFW_KEY_RIGHT_CONTROL;
+    _glfw.win32.keycodes[0x036] = GLFW_KEY_RIGHT_SHIFT;
+    _glfw.win32.keycodes[0x15C] = GLFW_KEY_RIGHT_SUPER;
+    _glfw.win32.keycodes[0x150] = GLFW_KEY_DOWN;
+    _glfw.win32.keycodes[0x14B] = GLFW_KEY_LEFT;
+    _glfw.win32.keycodes[0x14D] = GLFW_KEY_RIGHT;
+    _glfw.win32.keycodes[0x148] = GLFW_KEY_UP;
+
+    _glfw.win32.keycodes[0x052] = GLFW_KEY_KP_0;
+    _glfw.win32.keycodes[0x04F] = GLFW_KEY_KP_1;
+    _glfw.win32.keycodes[0x050] = GLFW_KEY_KP_2;
+    _glfw.win32.keycodes[0x051] = GLFW_KEY_KP_3;
+    _glfw.win32.keycodes[0x04B] = GLFW_KEY_KP_4;
+    _glfw.win32.keycodes[0x04C] = GLFW_KEY_KP_5;
+    _glfw.win32.keycodes[0x04D] = GLFW_KEY_KP_6;
+    _glfw.win32.keycodes[0x047] = GLFW_KEY_KP_7;
+    _glfw.win32.keycodes[0x048] = GLFW_KEY_KP_8;
+    _glfw.win32.keycodes[0x049] = GLFW_KEY_KP_9;
+    _glfw.win32.keycodes[0x04E] = GLFW_KEY_KP_ADD;
+    _glfw.win32.keycodes[0x053] = GLFW_KEY_KP_DECIMAL;
+    _glfw.win32.keycodes[0x135] = GLFW_KEY_KP_DIVIDE;
+    _glfw.win32.keycodes[0x11C] = GLFW_KEY_KP_ENTER;
+    _glfw.win32.keycodes[0x059] = GLFW_KEY_KP_EQUAL;
+    _glfw.win32.keycodes[0x037] = GLFW_KEY_KP_MULTIPLY;
+    _glfw.win32.keycodes[0x04A] = GLFW_KEY_KP_SUBTRACT;
+
+    for (scancode = 0;  scancode < 512;  scancode++)
+    {
+        if (_glfw.win32.keycodes[scancode] > 0)
+            _glfw.win32.scancodes[_glfw.win32.keycodes[scancode]] = scancode;
+    }
+}
+
+// Window procedure for the hidden helper window
+//
+static LRESULT CALLBACK helperWindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+    switch (uMsg)
+    {
+        case WM_DISPLAYCHANGE:
+            _glfwPollMonitorsWin32();
+            break;
+
+        case WM_DEVICECHANGE:
+        {
+            if (!_glfw.joysticksInitialized)
+                break;
+
+            if (wParam == DBT_DEVICEARRIVAL)
+            {
+                DEV_BROADCAST_HDR* dbh = (DEV_BROADCAST_HDR*) lParam;
+                if (dbh && dbh->dbch_devicetype == DBT_DEVTYP_DEVICEINTERFACE)
+                    _glfwDetectJoystickConnectionWin32();
+            }
+            else if (wParam == DBT_DEVICEREMOVECOMPLETE)
+            {
+                DEV_BROADCAST_HDR* dbh = (DEV_BROADCAST_HDR*) lParam;
+                if (dbh && dbh->dbch_devicetype == DBT_DEVTYP_DEVICEINTERFACE)
+                    _glfwDetectJoystickDisconnectionWin32();
+            }
+
+            break;
+        }
+    }
+
+    return DefWindowProcW(hWnd, uMsg, wParam, lParam);
+}
+
+// Creates a dummy window for behind-the-scenes work
+//
+static GLFWbool createHelperWindow(void)
+{
+    MSG msg;
+    WNDCLASSEXW wc = { sizeof(wc) };
+
+    wc.style         = CS_OWNDC;
+    wc.lpfnWndProc   = (WNDPROC) helperWindowProc;
+    wc.hInstance     = _glfw.win32.instance;
+    wc.lpszClassName = L"GLFW3 Helper";
+
+    _glfw.win32.helperWindowClass = RegisterClassExW(&wc);
+    if (!_glfw.win32.helperWindowClass)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to register helper window class");
+        return GLFW_FALSE;
+    }
+
+    _glfw.win32.helperWindowHandle =
+        CreateWindowExW(WS_EX_OVERLAPPEDWINDOW,
+                        MAKEINTATOM(_glfw.win32.helperWindowClass),
+                        L"GLFW message window",
+                        WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
+                        0, 0, 1, 1,
+                        NULL, NULL,
+                        _glfw.win32.instance,
+                        NULL);
+
+    if (!_glfw.win32.helperWindowHandle)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to create helper window");
+        return GLFW_FALSE;
+    }
+
+    // HACK: The command to the first ShowWindow call is ignored if the parent
+    //       process passed along a STARTUPINFO, so clear that with a no-op call
+    ShowWindow(_glfw.win32.helperWindowHandle, SW_HIDE);
+
+    // Register for HID device notifications
+    {
+        DEV_BROADCAST_DEVICEINTERFACE_W dbi;
+        ZeroMemory(&dbi, sizeof(dbi));
+        dbi.dbcc_size = sizeof(dbi);
+        dbi.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
+        dbi.dbcc_classguid = GUID_DEVINTERFACE_HID;
+
+        _glfw.win32.deviceNotificationHandle =
+            RegisterDeviceNotificationW(_glfw.win32.helperWindowHandle,
+                                        (DEV_BROADCAST_HDR*) &dbi,
+                                        DEVICE_NOTIFY_WINDOW_HANDLE);
+    }
+
+    while (PeekMessageW(&msg, _glfw.win32.helperWindowHandle, 0, 0, PM_REMOVE))
+    {
+        TranslateMessage(&msg);
+        DispatchMessageW(&msg);
+    }
+
+   return GLFW_TRUE;
+}
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Returns a wide string version of the specified UTF-8 string
+//
+WCHAR* _glfwCreateWideStringFromUTF8Win32(const char* source)
+{
+    WCHAR* target;
+    int count;
+
+    count = MultiByteToWideChar(CP_UTF8, 0, source, -1, NULL, 0);
+    if (!count)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to convert string from UTF-8");
+        return NULL;
+    }
+
+    target = _glfw_calloc(count, sizeof(WCHAR));
+
+    if (!MultiByteToWideChar(CP_UTF8, 0, source, -1, target, count))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to convert string from UTF-8");
+        _glfw_free(target);
+        return NULL;
+    }
+
+    return target;
+}
+
+// Returns a UTF-8 string version of the specified wide string
+//
+char* _glfwCreateUTF8FromWideStringWin32(const WCHAR* source)
+{
+    char* target;
+    int size;
+
+    size = WideCharToMultiByte(CP_UTF8, 0, source, -1, NULL, 0, NULL, NULL);
+    if (!size)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to convert string to UTF-8");
+        return NULL;
+    }
+
+    target = _glfw_calloc(size, 1);
+
+    if (!WideCharToMultiByte(CP_UTF8, 0, source, -1, target, size, NULL, NULL))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to convert string to UTF-8");
+        _glfw_free(target);
+        return NULL;
+    }
+
+    return target;
+}
+
+// Reports the specified error, appending information about the last Win32 error
+//
+void _glfwInputErrorWin32(int error, const char* description)
+{
+    WCHAR buffer[_GLFW_MESSAGE_SIZE] = L"";
+    char message[_GLFW_MESSAGE_SIZE] = "";
+
+    FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM |
+                       FORMAT_MESSAGE_IGNORE_INSERTS |
+                       FORMAT_MESSAGE_MAX_WIDTH_MASK,
+                   NULL,
+                   GetLastError() & 0xffff,
+                   MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+                   buffer,
+                   sizeof(buffer) / sizeof(WCHAR),
+                   NULL);
+    WideCharToMultiByte(CP_UTF8, 0, buffer, -1, message, sizeof(message), NULL, NULL);
+
+    _glfwInputError(error, "%s: %s", description, message);
+}
+
+// Updates key names according to the current keyboard layout
+//
+void _glfwUpdateKeyNamesWin32(void)
+{
+    int key;
+    BYTE state[256] = {0};
+
+    memset(_glfw.win32.keynames, 0, sizeof(_glfw.win32.keynames));
+
+    for (key = GLFW_KEY_SPACE;  key <= GLFW_KEY_LAST;  key++)
+    {
+        UINT vk;
+        int scancode, length;
+        WCHAR chars[16];
+
+        scancode = _glfw.win32.scancodes[key];
+        if (scancode == -1)
+            continue;
+
+        if (key >= GLFW_KEY_KP_0 && key <= GLFW_KEY_KP_ADD)
+        {
+            const UINT vks[] = {
+                VK_NUMPAD0,  VK_NUMPAD1,  VK_NUMPAD2, VK_NUMPAD3,
+                VK_NUMPAD4,  VK_NUMPAD5,  VK_NUMPAD6, VK_NUMPAD7,
+                VK_NUMPAD8,  VK_NUMPAD9,  VK_DECIMAL, VK_DIVIDE,
+                VK_MULTIPLY, VK_SUBTRACT, VK_ADD
+            };
+
+            vk = vks[key - GLFW_KEY_KP_0];
+        }
+        else
+            vk = MapVirtualKeyW(scancode, MAPVK_VSC_TO_VK);
+
+        length = ToUnicode(vk, scancode, state,
+                           chars, sizeof(chars) / sizeof(WCHAR),
+                           0);
+
+        if (length == -1)
+        {
+            // This is a dead key, so we need a second simulated key press
+            // to make it output its own character (usually a diacritic)
+            length = ToUnicode(vk, scancode, state,
+                               chars, sizeof(chars) / sizeof(WCHAR),
+                               0);
+        }
+
+        if (length < 1)
+            continue;
+
+        WideCharToMultiByte(CP_UTF8, 0, chars, 1,
+                            _glfw.win32.keynames[key],
+                            sizeof(_glfw.win32.keynames[key]),
+                            NULL, NULL);
+    }
+}
+
+// Replacement for IsWindowsVersionOrGreater, as we cannot rely on the
+// application having a correct embedded manifest
+//
+BOOL _glfwIsWindowsVersionOrGreaterWin32(WORD major, WORD minor, WORD sp)
+{
+    OSVERSIONINFOEXW osvi = { sizeof(osvi), major, minor, 0, 0, {0}, sp };
+    DWORD mask = VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR;
+    ULONGLONG cond = VerSetConditionMask(0, VER_MAJORVERSION, VER_GREATER_EQUAL);
+    cond = VerSetConditionMask(cond, VER_MINORVERSION, VER_GREATER_EQUAL);
+    cond = VerSetConditionMask(cond, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
+    // HACK: Use RtlVerifyVersionInfo instead of VerifyVersionInfoW as the
+    //       latter lies unless the user knew to embed a non-default manifest
+    //       announcing support for Windows 10 via supportedOS GUID
+    return RtlVerifyVersionInfo(&osvi, mask, cond) == 0;
+}
+
+// Checks whether we are on at least the specified build of Windows 10
+//
+BOOL _glfwIsWindows10BuildOrGreaterWin32(WORD build)
+{
+    OSVERSIONINFOEXW osvi = { sizeof(osvi), 10, 0, build };
+    DWORD mask = VER_MAJORVERSION | VER_MINORVERSION | VER_BUILDNUMBER;
+    ULONGLONG cond = VerSetConditionMask(0, VER_MAJORVERSION, VER_GREATER_EQUAL);
+    cond = VerSetConditionMask(cond, VER_MINORVERSION, VER_GREATER_EQUAL);
+    cond = VerSetConditionMask(cond, VER_BUILDNUMBER, VER_GREATER_EQUAL);
+    // HACK: Use RtlVerifyVersionInfo instead of VerifyVersionInfoW as the
+    //       latter lies unless the user knew to embed a non-default manifest
+    //       announcing support for Windows 10 via supportedOS GUID
+    return RtlVerifyVersionInfo(&osvi, mask, cond) == 0;
+}
+
+GLFWbool _glfwConnectWin32(int platformID, _GLFWplatform* platform)
+{
+    const _GLFWplatform win32 =
+    {
+        .platformID = GLFW_PLATFORM_WIN32,
+        .init = _glfwInitWin32,
+        .terminate = _glfwTerminateWin32,
+        .getCursorPos = _glfwGetCursorPosWin32,
+        .setCursorPos = _glfwSetCursorPosWin32,
+        .setCursorMode = _glfwSetCursorModeWin32,
+        .setRawMouseMotion = _glfwSetRawMouseMotionWin32,
+        .rawMouseMotionSupported = _glfwRawMouseMotionSupportedWin32,
+        .createCursor = _glfwCreateCursorWin32,
+        .createStandardCursor = _glfwCreateStandardCursorWin32,
+        .destroyCursor = _glfwDestroyCursorWin32,
+        .setCursor = _glfwSetCursorWin32,
+        .getScancodeName = _glfwGetScancodeNameWin32,
+        .getKeyScancode = _glfwGetKeyScancodeWin32,
+        .setClipboardString = _glfwSetClipboardStringWin32,
+        .getClipboardString = _glfwGetClipboardStringWin32,
+        .initJoysticks = _glfwInitJoysticksWin32,
+        .terminateJoysticks = _glfwTerminateJoysticksWin32,
+        .pollJoystick = _glfwPollJoystickWin32,
+        .getMappingName = _glfwGetMappingNameWin32,
+        .updateGamepadGUID = _glfwUpdateGamepadGUIDWin32,
+        .freeMonitor = _glfwFreeMonitorWin32,
+        .getMonitorPos = _glfwGetMonitorPosWin32,
+        .getMonitorContentScale = _glfwGetMonitorContentScaleWin32,
+        .getMonitorWorkarea = _glfwGetMonitorWorkareaWin32,
+        .getVideoModes = _glfwGetVideoModesWin32,
+        .getVideoMode = _glfwGetVideoModeWin32,
+        .getGammaRamp = _glfwGetGammaRampWin32,
+        .setGammaRamp = _glfwSetGammaRampWin32,
+        .createWindow = _glfwCreateWindowWin32,
+        .destroyWindow = _glfwDestroyWindowWin32,
+        .setWindowTitle = _glfwSetWindowTitleWin32,
+        .setWindowIcon = _glfwSetWindowIconWin32,
+        .getWindowPos = _glfwGetWindowPosWin32,
+        .setWindowPos = _glfwSetWindowPosWin32,
+        .getWindowSize = _glfwGetWindowSizeWin32,
+        .setWindowSize = _glfwSetWindowSizeWin32,
+        .setWindowSizeLimits = _glfwSetWindowSizeLimitsWin32,
+        .setWindowAspectRatio = _glfwSetWindowAspectRatioWin32,
+        .getFramebufferSize = _glfwGetFramebufferSizeWin32,
+        .getWindowFrameSize = _glfwGetWindowFrameSizeWin32,
+        .getWindowContentScale = _glfwGetWindowContentScaleWin32,
+        .iconifyWindow = _glfwIconifyWindowWin32,
+        .restoreWindow = _glfwRestoreWindowWin32,
+        .maximizeWindow = _glfwMaximizeWindowWin32,
+        .showWindow = _glfwShowWindowWin32,
+        .hideWindow = _glfwHideWindowWin32,
+        .requestWindowAttention = _glfwRequestWindowAttentionWin32,
+        .focusWindow = _glfwFocusWindowWin32,
+        .setWindowMonitor = _glfwSetWindowMonitorWin32,
+        .windowFocused = _glfwWindowFocusedWin32,
+        .windowIconified = _glfwWindowIconifiedWin32,
+        .windowVisible = _glfwWindowVisibleWin32,
+        .windowMaximized = _glfwWindowMaximizedWin32,
+        .windowHovered = _glfwWindowHoveredWin32,
+        .framebufferTransparent = _glfwFramebufferTransparentWin32,
+        .getWindowOpacity = _glfwGetWindowOpacityWin32,
+        .setWindowResizable = _glfwSetWindowResizableWin32,
+        .setWindowDecorated = _glfwSetWindowDecoratedWin32,
+        .setWindowFloating = _glfwSetWindowFloatingWin32,
+        .setWindowOpacity = _glfwSetWindowOpacityWin32,
+        .setWindowMousePassthrough = _glfwSetWindowMousePassthroughWin32,
+        .pollEvents = _glfwPollEventsWin32,
+        .waitEvents = _glfwWaitEventsWin32,
+        .waitEventsTimeout = _glfwWaitEventsTimeoutWin32,
+        .postEmptyEvent = _glfwPostEmptyEventWin32,
+        .getEGLPlatform = _glfwGetEGLPlatformWin32,
+        .getEGLNativeDisplay = _glfwGetEGLNativeDisplayWin32,
+        .getEGLNativeWindow = _glfwGetEGLNativeWindowWin32,
+        .getRequiredInstanceExtensions = _glfwGetRequiredInstanceExtensionsWin32,
+        .getPhysicalDevicePresentationSupport = _glfwGetPhysicalDevicePresentationSupportWin32,
+        .createWindowSurface = _glfwCreateWindowSurfaceWin32
+    };
+
+    *platform = win32;
+    return GLFW_TRUE;
+}
+
+int _glfwInitWin32(void)
+{
+    if (!loadLibraries())
+        return GLFW_FALSE;
+
+    createKeyTables();
+    _glfwUpdateKeyNamesWin32();
+
+    if (_glfwIsWindows10Version1703OrGreaterWin32())
+        SetProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);
+    else if (IsWindows8Point1OrGreater())
+        SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
+    else if (IsWindowsVistaOrGreater())
+        SetProcessDPIAware();
+
+    if (!createHelperWindow())
+        return GLFW_FALSE;
+
+    _glfwPollMonitorsWin32();
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateWin32(void)
+{
+    if (_glfw.win32.blankCursor)
+        DestroyIcon((HICON) _glfw.win32.blankCursor);
+
+    if (_glfw.win32.deviceNotificationHandle)
+        UnregisterDeviceNotification(_glfw.win32.deviceNotificationHandle);
+
+    if (_glfw.win32.helperWindowHandle)
+        DestroyWindow(_glfw.win32.helperWindowHandle);
+    if (_glfw.win32.helperWindowClass)
+        UnregisterClassW(MAKEINTATOM(_glfw.win32.helperWindowClass), _glfw.win32.instance);
+    if (_glfw.win32.mainWindowClass)
+        UnregisterClassW(MAKEINTATOM(_glfw.win32.mainWindowClass), _glfw.win32.instance);
+
+    _glfw_free(_glfw.win32.clipboardString);
+    _glfw_free(_glfw.win32.rawInput);
+
+    _glfwTerminateWGL();
+    _glfwTerminateEGL();
+    _glfwTerminateOSMesa();
+
+    freeLibraries();
+}
+
+#endif // _GLFW_WIN32
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_joystick.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_joystick.c
new file mode 100644
index 000000000000..6703485e00ae
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_joystick.c
@@ -0,0 +1,767 @@
+//========================================================================
+// GLFW 3.5 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_WIN32)
+
+#include <stdio.h>
+#include <math.h>
+
+#define _GLFW_TYPE_AXIS     0
+#define _GLFW_TYPE_SLIDER   1
+#define _GLFW_TYPE_BUTTON   2
+#define _GLFW_TYPE_POV      3
+
+// Data produced with DirectInput device object enumeration
+//
+typedef struct _GLFWobjenumWin32
+{
+    IDirectInputDevice8W*   device;
+    _GLFWjoyobjectWin32*    objects;
+    int                     objectCount;
+    int                     axisCount;
+    int                     sliderCount;
+    int                     buttonCount;
+    int                     povCount;
+} _GLFWobjenumWin32;
+
+// Define local copies of the necessary GUIDs
+//
+static const GUID _glfw_IID_IDirectInput8W =
+    {0xbf798031,0x483a,0x4da2,{0xaa,0x99,0x5d,0x64,0xed,0x36,0x97,0x00}};
+static const GUID _glfw_GUID_XAxis =
+    {0xa36d02e0,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_YAxis =
+    {0xa36d02e1,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_ZAxis =
+    {0xa36d02e2,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_RxAxis =
+    {0xa36d02f4,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_RyAxis =
+    {0xa36d02f5,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_RzAxis =
+    {0xa36d02e3,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_Slider =
+    {0xa36d02e4,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_POV =
+    {0xa36d02f2,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+
+#define IID_IDirectInput8W _glfw_IID_IDirectInput8W
+#define GUID_XAxis _glfw_GUID_XAxis
+#define GUID_YAxis _glfw_GUID_YAxis
+#define GUID_ZAxis _glfw_GUID_ZAxis
+#define GUID_RxAxis _glfw_GUID_RxAxis
+#define GUID_RyAxis _glfw_GUID_RyAxis
+#define GUID_RzAxis _glfw_GUID_RzAxis
+#define GUID_Slider _glfw_GUID_Slider
+#define GUID_POV _glfw_GUID_POV
+
+// Object data array for our clone of c_dfDIJoystick
+// Generated with https://github.com/elmindreda/c_dfDIJoystick2
+//
+static DIOBJECTDATAFORMAT _glfwObjectDataFormats[] =
+{
+    { &GUID_XAxis,DIJOFS_X,DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_YAxis,DIJOFS_Y,DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_ZAxis,DIJOFS_Z,DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_RxAxis,DIJOFS_RX,DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_RyAxis,DIJOFS_RY,DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_RzAxis,DIJOFS_RZ,DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_Slider,DIJOFS_SLIDER(0),DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_Slider,DIJOFS_SLIDER(1),DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_POV,DIJOFS_POV(0),DIDFT_POV|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { &GUID_POV,DIJOFS_POV(1),DIDFT_POV|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { &GUID_POV,DIJOFS_POV(2),DIDFT_POV|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { &GUID_POV,DIJOFS_POV(3),DIDFT_POV|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(0),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(1),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(2),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(3),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(4),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(5),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(6),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(7),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(8),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(9),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(10),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(11),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(12),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(13),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(14),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(15),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(16),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(17),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(18),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(19),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(20),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(21),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(22),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(23),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(24),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(25),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(26),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(27),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(28),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(29),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(30),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(31),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+};
+
+// Our clone of c_dfDIJoystick
+//
+static const DIDATAFORMAT _glfwDataFormat =
+{
+    sizeof(DIDATAFORMAT),
+    sizeof(DIOBJECTDATAFORMAT),
+    DIDFT_ABSAXIS,
+    sizeof(DIJOYSTATE),
+    sizeof(_glfwObjectDataFormats) / sizeof(DIOBJECTDATAFORMAT),
+    _glfwObjectDataFormats
+};
+
+// Returns a description fitting the specified XInput capabilities
+//
+static const char* getDeviceDescription(const XINPUT_CAPABILITIES* xic)
+{
+    switch (xic->SubType)
+    {
+        case XINPUT_DEVSUBTYPE_WHEEL:
+            return "XInput Wheel";
+        case XINPUT_DEVSUBTYPE_ARCADE_STICK:
+            return "XInput Arcade Stick";
+        case XINPUT_DEVSUBTYPE_FLIGHT_STICK:
+            return "XInput Flight Stick";
+        case XINPUT_DEVSUBTYPE_DANCE_PAD:
+            return "XInput Dance Pad";
+        case XINPUT_DEVSUBTYPE_GUITAR:
+            return "XInput Guitar";
+        case XINPUT_DEVSUBTYPE_DRUM_KIT:
+            return "XInput Drum Kit";
+        case XINPUT_DEVSUBTYPE_GAMEPAD:
+        {
+            if (xic->Flags & XINPUT_CAPS_WIRELESS)
+                return "Wireless Xbox Controller";
+            else
+                return "Xbox Controller";
+        }
+    }
+
+    return "Unknown XInput Device";
+}
+
+// Lexically compare device objects
+//
+static int compareJoystickObjects(const void* first, const void* second)
+{
+    const _GLFWjoyobjectWin32* fo = first;
+    const _GLFWjoyobjectWin32* so = second;
+
+    if (fo->type != so->type)
+        return fo->type - so->type;
+
+    return fo->offset - so->offset;
+}
+
+// Checks whether the specified device supports XInput
+// Technique from FDInputJoystickManager::IsXInputDeviceFast in ZDoom
+//
+static GLFWbool supportsXInput(const GUID* guid)
+{
+    UINT i, count = 0;
+    RAWINPUTDEVICELIST* ridl;
+    GLFWbool result = GLFW_FALSE;
+
+    if (GetRawInputDeviceList(NULL, &count, sizeof(RAWINPUTDEVICELIST)) != 0)
+        return GLFW_FALSE;
+
+    ridl = _glfw_calloc(count, sizeof(RAWINPUTDEVICELIST));
+
+    if (GetRawInputDeviceList(ridl, &count, sizeof(RAWINPUTDEVICELIST)) == (UINT) -1)
+    {
+        _glfw_free(ridl);
+        return GLFW_FALSE;
+    }
+
+    for (i = 0;  i < count;  i++)
+    {
+        RID_DEVICE_INFO rdi;
+        char name[256];
+        UINT size;
+
+        if (ridl[i].dwType != RIM_TYPEHID)
+            continue;
+
+        ZeroMemory(&rdi, sizeof(rdi));
+        rdi.cbSize = sizeof(rdi);
+        size = sizeof(rdi);
+
+        if ((INT) GetRawInputDeviceInfoA(ridl[i].hDevice,
+                                         RIDI_DEVICEINFO,
+                                         &rdi, &size) == -1)
+        {
+            continue;
+        }
+
+        if (MAKELONG(rdi.hid.dwVendorId, rdi.hid.dwProductId) != (LONG) guid->Data1)
+            continue;
+
+        memset(name, 0, sizeof(name));
+        size = sizeof(name);
+
+        if ((INT) GetRawInputDeviceInfoA(ridl[i].hDevice,
+                                         RIDI_DEVICENAME,
+                                         name, &size) == -1)
+        {
+            break;
+        }
+
+        name[sizeof(name) - 1] = '\0';
+        if (strstr(name, "IG_"))
+        {
+            result = GLFW_TRUE;
+            break;
+        }
+    }
+
+    _glfw_free(ridl);
+    return result;
+}
+
+// Frees all resources associated with the specified joystick
+//
+static void closeJoystick(_GLFWjoystick* js)
+{
+    _glfwInputJoystick(js, GLFW_DISCONNECTED);
+
+    if (js->win32.device)
+    {
+        IDirectInputDevice8_Unacquire(js->win32.device);
+        IDirectInputDevice8_Release(js->win32.device);
+    }
+
+    _glfw_free(js->win32.objects);
+    _glfwFreeJoystick(js);
+}
+
+// DirectInput device object enumeration callback
+// Insights gleaned from SDL
+//
+static BOOL CALLBACK deviceObjectCallback(const DIDEVICEOBJECTINSTANCEW* doi,
+                                          void* user)
+{
+    _GLFWobjenumWin32* data = user;
+    _GLFWjoyobjectWin32* object = data->objects + data->objectCount;
+
+    if (DIDFT_GETTYPE(doi->dwType) & DIDFT_AXIS)
+    {
+        DIPROPRANGE dipr;
+
+        if (memcmp(&doi->guidType, &GUID_Slider, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_SLIDER(data->sliderCount);
+        else if (memcmp(&doi->guidType, &GUID_XAxis, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_X;
+        else if (memcmp(&doi->guidType, &GUID_YAxis, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_Y;
+        else if (memcmp(&doi->guidType, &GUID_ZAxis, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_Z;
+        else if (memcmp(&doi->guidType, &GUID_RxAxis, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_RX;
+        else if (memcmp(&doi->guidType, &GUID_RyAxis, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_RY;
+        else if (memcmp(&doi->guidType, &GUID_RzAxis, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_RZ;
+        else
+            return DIENUM_CONTINUE;
+
+        ZeroMemory(&dipr, sizeof(dipr));
+        dipr.diph.dwSize = sizeof(dipr);
+        dipr.diph.dwHeaderSize = sizeof(dipr.diph);
+        dipr.diph.dwObj = doi->dwType;
+        dipr.diph.dwHow = DIPH_BYID;
+        dipr.lMin = -32768;
+        dipr.lMax =  32767;
+
+        if (FAILED(IDirectInputDevice8_SetProperty(data->device,
+                                                   DIPROP_RANGE,
+                                                   &dipr.diph)))
+        {
+            return DIENUM_CONTINUE;
+        }
+
+        if (memcmp(&doi->guidType, &GUID_Slider, sizeof(GUID)) == 0)
+        {
+            object->type = _GLFW_TYPE_SLIDER;
+            data->sliderCount++;
+        }
+        else
+        {
+            object->type = _GLFW_TYPE_AXIS;
+            data->axisCount++;
+        }
+    }
+    else if (DIDFT_GETTYPE(doi->dwType) & DIDFT_BUTTON)
+    {
+        object->offset = DIJOFS_BUTTON(data->buttonCount);
+        object->type = _GLFW_TYPE_BUTTON;
+        data->buttonCount++;
+    }
+    else if (DIDFT_GETTYPE(doi->dwType) & DIDFT_POV)
+    {
+        object->offset = DIJOFS_POV(data->povCount);
+        object->type = _GLFW_TYPE_POV;
+        data->povCount++;
+    }
+
+    data->objectCount++;
+    return DIENUM_CONTINUE;
+}
+
+// DirectInput device enumeration callback
+//
+static BOOL CALLBACK deviceCallback(const DIDEVICEINSTANCE* di, void* user)
+{
+    int jid = 0;
+    DIDEVCAPS dc;
+    DIPROPDWORD dipd;
+    IDirectInputDevice8* device;
+    _GLFWobjenumWin32 data;
+    _GLFWjoystick* js;
+    char guid[33];
+    char name[256];
+
+    for (jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        js = _glfw.joysticks + jid;
+        if (js->connected)
+        {
+            if (memcmp(&js->win32.guid, &di->guidInstance, sizeof(GUID)) == 0)
+                return DIENUM_CONTINUE;
+        }
+    }
+
+    if (supportsXInput(&di->guidProduct))
+        return DIENUM_CONTINUE;
+
+    if (FAILED(IDirectInput8_CreateDevice(_glfw.win32.dinput8.api,
+                                          &di->guidInstance,
+                                          &device,
+                                          NULL)))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to create device");
+        return DIENUM_CONTINUE;
+    }
+
+    if (FAILED(IDirectInputDevice8_SetDataFormat(device, &_glfwDataFormat)))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to set device data format");
+
+        IDirectInputDevice8_Release(device);
+        return DIENUM_CONTINUE;
+    }
+
+    ZeroMemory(&dc, sizeof(dc));
+    dc.dwSize = sizeof(dc);
+
+    if (FAILED(IDirectInputDevice8_GetCapabilities(device, &dc)))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to query device capabilities");
+
+        IDirectInputDevice8_Release(device);
+        return DIENUM_CONTINUE;
+    }
+
+    ZeroMemory(&dipd, sizeof(dipd));
+    dipd.diph.dwSize = sizeof(dipd);
+    dipd.diph.dwHeaderSize = sizeof(dipd.diph);
+    dipd.diph.dwHow = DIPH_DEVICE;
+    dipd.dwData = DIPROPAXISMODE_ABS;
+
+    if (FAILED(IDirectInputDevice8_SetProperty(device,
+                                               DIPROP_AXISMODE,
+                                               &dipd.diph)))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to set device axis mode");
+
+        IDirectInputDevice8_Release(device);
+        return DIENUM_CONTINUE;
+    }
+
+    memset(&data, 0, sizeof(data));
+    data.device = device;
+    data.objects = _glfw_calloc(dc.dwAxes + (size_t) dc.dwButtons + dc.dwPOVs,
+                                sizeof(_GLFWjoyobjectWin32));
+
+    if (FAILED(IDirectInputDevice8_EnumObjects(device,
+                                               deviceObjectCallback,
+                                               &data,
+                                               DIDFT_AXIS | DIDFT_BUTTON | DIDFT_POV)))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to enumerate device objects");
+
+        IDirectInputDevice8_Release(device);
+        _glfw_free(data.objects);
+        return DIENUM_CONTINUE;
+    }
+
+    qsort(data.objects, data.objectCount,
+          sizeof(_GLFWjoyobjectWin32),
+          compareJoystickObjects);
+
+    if (!WideCharToMultiByte(CP_UTF8, 0,
+                             di->tszInstanceName, -1,
+                             name, sizeof(name),
+                             NULL, NULL))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to convert joystick name to UTF-8");
+
+        IDirectInputDevice8_Release(device);
+        _glfw_free(data.objects);
+        return DIENUM_STOP;
+    }
+
+    // Generate a joystick GUID that matches the SDL 2.0.5+ one
+    if (memcmp(&di->guidProduct.Data4[2], "PIDVID", 6) == 0)
+    {
+        sprintf(guid, "03000000%02x%02x0000%02x%02x000000000000",
+                (uint8_t) di->guidProduct.Data1,
+                (uint8_t) (di->guidProduct.Data1 >> 8),
+                (uint8_t) (di->guidProduct.Data1 >> 16),
+                (uint8_t) (di->guidProduct.Data1 >> 24));
+    }
+    else
+    {
+        sprintf(guid, "05000000%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x00",
+                name[0], name[1], name[2], name[3],
+                name[4], name[5], name[6], name[7],
+                name[8], name[9], name[10]);
+    }
+
+    js = _glfwAllocJoystick(name, guid,
+                            data.axisCount + data.sliderCount,
+                            data.buttonCount,
+                            data.povCount);
+    if (!js)
+    {
+        IDirectInputDevice8_Release(device);
+        _glfw_free(data.objects);
+        return DIENUM_STOP;
+    }
+
+    js->win32.device = device;
+    js->win32.guid = di->guidInstance;
+    js->win32.objects = data.objects;
+    js->win32.objectCount = data.objectCount;
+
+    _glfwInputJoystick(js, GLFW_CONNECTED);
+    return DIENUM_CONTINUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Checks for new joysticks after DBT_DEVICEARRIVAL
+//
+void _glfwDetectJoystickConnectionWin32(void)
+{
+    if (_glfw.win32.xinput.instance)
+    {
+        DWORD index;
+
+        for (index = 0;  index < XUSER_MAX_COUNT;  index++)
+        {
+            int jid;
+            char guid[33];
+            XINPUT_CAPABILITIES xic;
+            _GLFWjoystick* js;
+
+            for (jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+            {
+                if (_glfw.joysticks[jid].connected &&
+                    _glfw.joysticks[jid].win32.device == NULL &&
+                    _glfw.joysticks[jid].win32.index == index)
+                {
+                    break;
+                }
+            }
+
+            if (jid <= GLFW_JOYSTICK_LAST)
+                continue;
+
+            if (XInputGetCapabilities(index, 0, &xic) != ERROR_SUCCESS)
+                continue;
+
+            // Generate a joystick GUID that matches the SDL 2.0.5+ one
+            sprintf(guid, "78696e707574%02x000000000000000000",
+                    xic.SubType & 0xff);
+
+            js = _glfwAllocJoystick(getDeviceDescription(&xic), guid, 6, 10, 1);
+            if (!js)
+                continue;
+
+            js->win32.index = index;
+
+            _glfwInputJoystick(js, GLFW_CONNECTED);
+        }
+    }
+
+    if (_glfw.win32.dinput8.api)
+    {
+        if (FAILED(IDirectInput8_EnumDevices(_glfw.win32.dinput8.api,
+                                             DI8DEVCLASS_GAMECTRL,
+                                             deviceCallback,
+                                             NULL,
+                                             DIEDFL_ALLDEVICES)))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Failed to enumerate DirectInput8 devices");
+            return;
+        }
+    }
+}
+
+// Checks for joystick disconnection after DBT_DEVICEREMOVECOMPLETE
+//
+void _glfwDetectJoystickDisconnectionWin32(void)
+{
+    int jid;
+
+    for (jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        _GLFWjoystick* js = _glfw.joysticks + jid;
+        if (js->connected)
+            _glfwPollJoystickWin32(js, _GLFW_POLL_PRESENCE);
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwInitJoysticksWin32(void)
+{
+    if (_glfw.win32.dinput8.instance)
+    {
+        if (FAILED(DirectInput8Create(_glfw.win32.instance,
+                                      DIRECTINPUT_VERSION,
+                                      &IID_IDirectInput8W,
+                                      (void**) &_glfw.win32.dinput8.api,
+                                      NULL)))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Win32: Failed to create interface");
+            return GLFW_FALSE;
+        }
+    }
+
+    _glfwDetectJoystickConnectionWin32();
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateJoysticksWin32(void)
+{
+    int jid;
+
+    for (jid = GLFW_JOYSTICK_1;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+        closeJoystick(_glfw.joysticks + jid);
+
+    if (_glfw.win32.dinput8.api)
+        IDirectInput8_Release(_glfw.win32.dinput8.api);
+}
+
+GLFWbool _glfwPollJoystickWin32(_GLFWjoystick* js, int mode)
+{
+    if (js->win32.device)
+    {
+        int i, ai = 0, bi = 0, pi = 0;
+        HRESULT result;
+        DIJOYSTATE state = {0};
+
+        IDirectInputDevice8_Poll(js->win32.device);
+        result = IDirectInputDevice8_GetDeviceState(js->win32.device,
+                                                    sizeof(state),
+                                                    &state);
+        if (result == DIERR_NOTACQUIRED || result == DIERR_INPUTLOST)
+        {
+            IDirectInputDevice8_Acquire(js->win32.device);
+            IDirectInputDevice8_Poll(js->win32.device);
+            result = IDirectInputDevice8_GetDeviceState(js->win32.device,
+                                                        sizeof(state),
+                                                        &state);
+        }
+
+        if (FAILED(result))
+        {
+            closeJoystick(js);
+            return GLFW_FALSE;
+        }
+
+        if (mode == _GLFW_POLL_PRESENCE)
+            return GLFW_TRUE;
+
+        for (i = 0;  i < js->win32.objectCount;  i++)
+        {
+            const void* data = (char*) &state + js->win32.objects[i].offset;
+
+            switch (js->win32.objects[i].type)
+            {
+                case _GLFW_TYPE_AXIS:
+                case _GLFW_TYPE_SLIDER:
+                {
+                    const float value = (*((LONG*) data) + 0.5f) / 32767.5f;
+                    _glfwInputJoystickAxis(js, ai, value);
+                    ai++;
+                    break;
+                }
+
+                case _GLFW_TYPE_BUTTON:
+                {
+                    const char value = (*((BYTE*) data) & 0x80) != 0;
+                    _glfwInputJoystickButton(js, bi, value);
+                    bi++;
+                    break;
+                }
+
+                case _GLFW_TYPE_POV:
+                {
+                    const int states[9] =
+                    {
+                        GLFW_HAT_UP,
+                        GLFW_HAT_RIGHT_UP,
+                        GLFW_HAT_RIGHT,
+                        GLFW_HAT_RIGHT_DOWN,
+                        GLFW_HAT_DOWN,
+                        GLFW_HAT_LEFT_DOWN,
+                        GLFW_HAT_LEFT,
+                        GLFW_HAT_LEFT_UP,
+                        GLFW_HAT_CENTERED
+                    };
+
+                    // Screams of horror are appropriate at this point
+                    int stateIndex = LOWORD(*(DWORD*) data) / (45 * DI_DEGREES);
+                    if (stateIndex < 0 || stateIndex > 8)
+                        stateIndex = 8;
+
+                    _glfwInputJoystickHat(js, pi, states[stateIndex]);
+                    pi++;
+                    break;
+                }
+            }
+        }
+    }
+    else
+    {
+        int i, dpad = 0;
+        DWORD result;
+        XINPUT_STATE xis;
+        const WORD buttons[10] =
+        {
+            XINPUT_GAMEPAD_A,
+            XINPUT_GAMEPAD_B,
+            XINPUT_GAMEPAD_X,
+            XINPUT_GAMEPAD_Y,
+            XINPUT_GAMEPAD_LEFT_SHOULDER,
+            XINPUT_GAMEPAD_RIGHT_SHOULDER,
+            XINPUT_GAMEPAD_BACK,
+            XINPUT_GAMEPAD_START,
+            XINPUT_GAMEPAD_LEFT_THUMB,
+            XINPUT_GAMEPAD_RIGHT_THUMB
+        };
+
+        result = XInputGetState(js->win32.index, &xis);
+        if (result != ERROR_SUCCESS)
+        {
+            if (result == ERROR_DEVICE_NOT_CONNECTED)
+                closeJoystick(js);
+
+            return GLFW_FALSE;
+        }
+
+        if (mode == _GLFW_POLL_PRESENCE)
+            return GLFW_TRUE;
+
+        _glfwInputJoystickAxis(js, 0, (xis.Gamepad.sThumbLX + 0.5f) / 32767.5f);
+        _glfwInputJoystickAxis(js, 1, -(xis.Gamepad.sThumbLY + 0.5f) / 32767.5f);
+        _glfwInputJoystickAxis(js, 2, (xis.Gamepad.sThumbRX + 0.5f) / 32767.5f);
+        _glfwInputJoystickAxis(js, 3, -(xis.Gamepad.sThumbRY + 0.5f) / 32767.5f);
+        _glfwInputJoystickAxis(js, 4, xis.Gamepad.bLeftTrigger / 127.5f - 1.f);
+        _glfwInputJoystickAxis(js, 5, xis.Gamepad.bRightTrigger / 127.5f - 1.f);
+
+        for (i = 0;  i < 10;  i++)
+        {
+            const char value = (xis.Gamepad.wButtons & buttons[i]) ? 1 : 0;
+            _glfwInputJoystickButton(js, i, value);
+        }
+
+        if (xis.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_UP)
+            dpad |= GLFW_HAT_UP;
+        if (xis.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_RIGHT)
+            dpad |= GLFW_HAT_RIGHT;
+        if (xis.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_DOWN)
+            dpad |= GLFW_HAT_DOWN;
+        if (xis.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_LEFT)
+            dpad |= GLFW_HAT_LEFT;
+
+        // Treat invalid combinations as neither being pressed
+        // while preserving what data can be preserved
+        if ((dpad & GLFW_HAT_RIGHT) && (dpad & GLFW_HAT_LEFT))
+            dpad &= ~(GLFW_HAT_RIGHT | GLFW_HAT_LEFT);
+        if ((dpad & GLFW_HAT_UP) && (dpad & GLFW_HAT_DOWN))
+            dpad &= ~(GLFW_HAT_UP | GLFW_HAT_DOWN);
+
+        _glfwInputJoystickHat(js, 0, dpad);
+    }
+
+    return GLFW_TRUE;
+}
+
+const char* _glfwGetMappingNameWin32(void)
+{
+    return "Windows";
+}
+
+void _glfwUpdateGamepadGUIDWin32(char* guid)
+{
+    if (strcmp(guid + 20, "504944564944") == 0)
+    {
+        char original[33];
+        strncpy(original, guid, sizeof(original) - 1);
+        sprintf(guid, "03000000%.4s0000%.4s000000000000",
+                original, original + 4);
+    }
+}
+
+#endif // _GLFW_WIN32
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_joystick.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_joystick.h
new file mode 100644
index 000000000000..2d8f59d07f8c
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_joystick.h
@@ -0,0 +1,51 @@
+//========================================================================
+// GLFW 3.5 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define GLFW_WIN32_JOYSTICK_STATE         _GLFWjoystickWin32 win32;
+#define GLFW_WIN32_LIBRARY_JOYSTICK_STATE
+
+// Joystick element (axis, button or slider)
+//
+typedef struct _GLFWjoyobjectWin32
+{
+    int                     offset;
+    int                     type;
+} _GLFWjoyobjectWin32;
+
+// Win32-specific per-joystick data
+//
+typedef struct _GLFWjoystickWin32
+{
+    _GLFWjoyobjectWin32*    objects;
+    int                     objectCount;
+    IDirectInputDevice8W*   device;
+    DWORD                   index;
+    GUID                    guid;
+} _GLFWjoystickWin32;
+
+void _glfwDetectJoystickConnectionWin32(void);
+void _glfwDetectJoystickDisconnectionWin32(void);
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_module.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_module.c
new file mode 100644
index 000000000000..b76599b610bc
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_module.c
@@ -0,0 +1,51 @@
+//========================================================================
+// GLFW 3.5 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2021 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_WIN32_MODULE)
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void* _glfwPlatformLoadModule(const char* path)
+{
+    return LoadLibraryA(path);
+}
+
+void _glfwPlatformFreeModule(void* module)
+{
+    FreeLibrary((HMODULE) module);
+}
+
+GLFWproc _glfwPlatformGetModuleSymbol(void* module, const char* name)
+{
+    return (GLFWproc) GetProcAddress((HMODULE) module, name);
+}
+
+#endif // GLFW_BUILD_WIN32_MODULE
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_monitor.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_monitor.c
new file mode 100644
index 000000000000..87e5c206f0de
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_monitor.c
@@ -0,0 +1,574 @@
+//========================================================================
+// GLFW 3.5 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_WIN32)
+
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <wchar.h>
+#include <assert.h>
+
+
+// Callback for EnumDisplayMonitors in createMonitor
+//
+static BOOL CALLBACK monitorCallback(HMONITOR handle,
+                                     HDC dc,
+                                     RECT* rect,
+                                     LPARAM data)
+{
+    MONITORINFOEXW mi;
+    ZeroMemory(&mi, sizeof(mi));
+    mi.cbSize = sizeof(mi);
+
+    if (GetMonitorInfoW(handle, (MONITORINFO*) &mi))
+    {
+        _GLFWmonitor* monitor = (_GLFWmonitor*) data;
+        if (wcscmp(mi.szDevice, monitor->win32.adapterName) == 0)
+            monitor->win32.handle = handle;
+    }
+
+    return TRUE;
+}
+
+// Create monitor from an adapter and (optionally) a display
+//
+static _GLFWmonitor* createMonitor(DISPLAY_DEVICEW* adapter,
+                                   DISPLAY_DEVICEW* display)
+{
+    _GLFWmonitor* monitor;
+    int widthMM, heightMM;
+    char* name;
+    HDC dc;
+    DEVMODEW dm;
+    RECT rect;
+
+    if (display)
+        name = _glfwCreateUTF8FromWideStringWin32(display->DeviceString);
+    else
+        name = _glfwCreateUTF8FromWideStringWin32(adapter->DeviceString);
+    if (!name)
+        return NULL;
+
+    ZeroMemory(&dm, sizeof(dm));
+    dm.dmSize = sizeof(dm);
+    EnumDisplaySettingsW(adapter->DeviceName, ENUM_CURRENT_SETTINGS, &dm);
+
+    dc = CreateDCW(L"DISPLAY", adapter->DeviceName, NULL, NULL);
+
+    if (IsWindows8Point1OrGreater())
+    {
+        widthMM  = GetDeviceCaps(dc, HORZSIZE);
+        heightMM = GetDeviceCaps(dc, VERTSIZE);
+    }
+    else
+    {
+        widthMM  = (int) (dm.dmPelsWidth * 25.4f / GetDeviceCaps(dc, LOGPIXELSX));
+        heightMM = (int) (dm.dmPelsHeight * 25.4f / GetDeviceCaps(dc, LOGPIXELSY));
+    }
+
+    DeleteDC(dc);
+
+    monitor = _glfwAllocMonitor(name, widthMM, heightMM);
+    _glfw_free(name);
+
+    if (adapter->StateFlags & DISPLAY_DEVICE_MODESPRUNED)
+        monitor->win32.modesPruned = GLFW_TRUE;
+
+    wcscpy(monitor->win32.adapterName, adapter->DeviceName);
+    WideCharToMultiByte(CP_UTF8, 0,
+                        adapter->DeviceName, -1,
+                        monitor->win32.publicAdapterName,
+                        sizeof(monitor->win32.publicAdapterName),
+                        NULL, NULL);
+
+    if (display)
+    {
+        wcscpy(monitor->win32.displayName, display->DeviceName);
+        WideCharToMultiByte(CP_UTF8, 0,
+                            display->DeviceName, -1,
+                            monitor->win32.publicDisplayName,
+                            sizeof(monitor->win32.publicDisplayName),
+                            NULL, NULL);
+    }
+
+    rect.left   = dm.dmPosition.x;
+    rect.top    = dm.dmPosition.y;
+    rect.right  = dm.dmPosition.x + dm.dmPelsWidth;
+    rect.bottom = dm.dmPosition.y + dm.dmPelsHeight;
+
+    EnumDisplayMonitors(NULL, &rect, monitorCallback, (LPARAM) monitor);
+    return monitor;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Poll for changes in the set of connected monitors
+//
+void _glfwPollMonitorsWin32(void)
+{
+    int i, disconnectedCount;
+    _GLFWmonitor** disconnected = NULL;
+    DWORD adapterIndex, displayIndex;
+    DISPLAY_DEVICEW adapter, display;
+    _GLFWmonitor* monitor;
+
+    disconnectedCount = _glfw.monitorCount;
+    if (disconnectedCount)
+    {
+        disconnected = _glfw_calloc(_glfw.monitorCount, sizeof(_GLFWmonitor*));
+        memcpy(disconnected,
+               _glfw.monitors,
+               _glfw.monitorCount * sizeof(_GLFWmonitor*));
+    }
+
+    for (adapterIndex = 0;  ;  adapterIndex++)
+    {
+        int type = _GLFW_INSERT_LAST;
+
+        ZeroMemory(&adapter, sizeof(adapter));
+        adapter.cb = sizeof(adapter);
+
+        if (!EnumDisplayDevicesW(NULL, adapterIndex, &adapter, 0))
+            break;
+
+        if (!(adapter.StateFlags & DISPLAY_DEVICE_ACTIVE))
+            continue;
+
+        if (adapter.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE)
+            type = _GLFW_INSERT_FIRST;
+
+        for (displayIndex = 0;  ;  displayIndex++)
+        {
+            ZeroMemory(&display, sizeof(display));
+            display.cb = sizeof(display);
+
+            if (!EnumDisplayDevicesW(adapter.DeviceName, displayIndex, &display, 0))
+                break;
+
+            if (!(display.StateFlags & DISPLAY_DEVICE_ACTIVE))
+                continue;
+
+            for (i = 0;  i < disconnectedCount;  i++)
+            {
+                if (disconnected[i] &&
+                    wcscmp(disconnected[i]->win32.displayName,
+                           display.DeviceName) == 0)
+                {
+                    disconnected[i] = NULL;
+                    // handle may have changed, update
+                    EnumDisplayMonitors(NULL, NULL, monitorCallback, (LPARAM) _glfw.monitors[i]);
+                    break;
+                }
+            }
+
+            if (i < disconnectedCount)
+                continue;
+
+            monitor = createMonitor(&adapter, &display);
+            if (!monitor)
+            {
+                _glfw_free(disconnected);
+                return;
+            }
+
+            _glfwInputMonitor(monitor, GLFW_CONNECTED, type);
+
+            type = _GLFW_INSERT_LAST;
+        }
+
+        // HACK: If an active adapter does not have any display devices
+        //       (as sometimes happens), add it directly as a monitor
+        if (displayIndex == 0)
+        {
+            for (i = 0;  i < disconnectedCount;  i++)
+            {
+                if (disconnected[i] &&
+                    wcscmp(disconnected[i]->win32.adapterName,
+                           adapter.DeviceName) == 0)
+                {
+                    disconnected[i] = NULL;
+                    break;
+                }
+            }
+
+            if (i < disconnectedCount)
+                continue;
+
+            monitor = createMonitor(&adapter, NULL);
+            if (!monitor)
+            {
+                _glfw_free(disconnected);
+                return;
+            }
+
+            _glfwInputMonitor(monitor, GLFW_CONNECTED, type);
+        }
+    }
+
+    for (i = 0;  i < disconnectedCount;  i++)
+    {
+        if (disconnected[i])
+            _glfwInputMonitor(disconnected[i], GLFW_DISCONNECTED, 0);
+    }
+
+    _glfw_free(disconnected);
+}
+
+// Change the current video mode
+//
+void _glfwSetVideoModeWin32(_GLFWmonitor* monitor, const GLFWvidmode* desired)
+{
+    GLFWvidmode current;
+    const GLFWvidmode* best;
+    DEVMODEW dm;
+    LONG result;
+
+    best = _glfwChooseVideoMode(monitor, desired);
+    _glfwGetVideoModeWin32(monitor, &current);
+    if (_glfwCompareVideoModes(&current, best) == 0)
+        return;
+
+    ZeroMemory(&dm, sizeof(dm));
+    dm.dmSize = sizeof(dm);
+    dm.dmFields           = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL |
+                            DM_DISPLAYFREQUENCY;
+    dm.dmPelsWidth        = best->width;
+    dm.dmPelsHeight       = best->height;
+    dm.dmBitsPerPel       = best->redBits + best->greenBits + best->blueBits;
+    dm.dmDisplayFrequency = best->refreshRate;
+
+    if (dm.dmBitsPerPel < 15 || dm.dmBitsPerPel >= 24)
+        dm.dmBitsPerPel = 32;
+
+    result = ChangeDisplaySettingsExW(monitor->win32.adapterName,
+                                      &dm,
+                                      NULL,
+                                      CDS_FULLSCREEN,
+                                      NULL);
+    if (result == DISP_CHANGE_SUCCESSFUL)
+        monitor->win32.modeChanged = GLFW_TRUE;
+    else
+    {
+        const char* description = "Unknown error";
+
+        if (result == DISP_CHANGE_BADDUALVIEW)
+            description = "The system uses DualView";
+        else if (result == DISP_CHANGE_BADFLAGS)
+            description = "Invalid flags";
+        else if (result == DISP_CHANGE_BADMODE)
+            description = "Graphics mode not supported";
+        else if (result == DISP_CHANGE_BADPARAM)
+            description = "Invalid parameter";
+        else if (result == DISP_CHANGE_FAILED)
+            description = "Graphics mode failed";
+        else if (result == DISP_CHANGE_NOTUPDATED)
+            description = "Failed to write to registry";
+        else if (result == DISP_CHANGE_RESTART)
+            description = "Computer restart required";
+
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to set video mode: %s",
+                        description);
+    }
+}
+
+// Restore the previously saved (original) video mode
+//
+void _glfwRestoreVideoModeWin32(_GLFWmonitor* monitor)
+{
+    if (monitor->win32.modeChanged)
+    {
+        ChangeDisplaySettingsExW(monitor->win32.adapterName,
+                                 NULL, NULL, CDS_FULLSCREEN, NULL);
+        monitor->win32.modeChanged = GLFW_FALSE;
+    }
+}
+
+void _glfwGetHMONITORContentScaleWin32(HMONITOR handle, float* xscale, float* yscale)
+{
+    UINT xdpi, ydpi;
+
+    if (xscale)
+        *xscale = 0.f;
+    if (yscale)
+        *yscale = 0.f;
+
+    if (IsWindows8Point1OrGreater())
+    {
+        if (GetDpiForMonitor(handle, MDT_EFFECTIVE_DPI, &xdpi, &ydpi) != S_OK)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to query monitor DPI");
+            return;
+        }
+    }
+    else
+    {
+        const HDC dc = GetDC(NULL);
+        xdpi = GetDeviceCaps(dc, LOGPIXELSX);
+        ydpi = GetDeviceCaps(dc, LOGPIXELSY);
+        ReleaseDC(NULL, dc);
+    }
+
+    if (xscale)
+        *xscale = xdpi / (float) USER_DEFAULT_SCREEN_DPI;
+    if (yscale)
+        *yscale = ydpi / (float) USER_DEFAULT_SCREEN_DPI;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwFreeMonitorWin32(_GLFWmonitor* monitor)
+{
+}
+
+void _glfwGetMonitorPosWin32(_GLFWmonitor* monitor, int* xpos, int* ypos)
+{
+    DEVMODEW dm;
+    ZeroMemory(&dm, sizeof(dm));
+    dm.dmSize = sizeof(dm);
+
+    EnumDisplaySettingsExW(monitor->win32.adapterName,
+                           ENUM_CURRENT_SETTINGS,
+                           &dm,
+                           EDS_ROTATEDMODE);
+
+    if (xpos)
+        *xpos = dm.dmPosition.x;
+    if (ypos)
+        *ypos = dm.dmPosition.y;
+}
+
+void _glfwGetMonitorContentScaleWin32(_GLFWmonitor* monitor,
+                                      float* xscale, float* yscale)
+{
+    _glfwGetHMONITORContentScaleWin32(monitor->win32.handle, xscale, yscale);
+}
+
+void _glfwGetMonitorWorkareaWin32(_GLFWmonitor* monitor,
+                                  int* xpos, int* ypos,
+                                  int* width, int* height)
+{
+    MONITORINFO mi = { sizeof(mi) };
+    GetMonitorInfoW(monitor->win32.handle, &mi);
+
+    if (xpos)
+        *xpos = mi.rcWork.left;
+    if (ypos)
+        *ypos = mi.rcWork.top;
+    if (width)
+        *width = mi.rcWork.right - mi.rcWork.left;
+    if (height)
+        *height = mi.rcWork.bottom - mi.rcWork.top;
+}
+
+GLFWvidmode* _glfwGetVideoModesWin32(_GLFWmonitor* monitor, int* count)
+{
+    int modeIndex = 0, size = 0;
+    GLFWvidmode* result = NULL;
+
+    *count = 0;
+
+    for (;;)
+    {
+        int i;
+        GLFWvidmode mode;
+        DEVMODEW dm;
+
+        ZeroMemory(&dm, sizeof(dm));
+        dm.dmSize = sizeof(dm);
+
+        if (!EnumDisplaySettingsW(monitor->win32.adapterName, modeIndex, &dm))
+            break;
+
+        modeIndex++;
+
+        // Skip modes with less than 15 BPP
+        if (dm.dmBitsPerPel < 15)
+            continue;
+
+        mode.width  = dm.dmPelsWidth;
+        mode.height = dm.dmPelsHeight;
+        mode.refreshRate = dm.dmDisplayFrequency;
+        _glfwSplitBPP(dm.dmBitsPerPel,
+                      &mode.redBits,
+                      &mode.greenBits,
+                      &mode.blueBits);
+
+        for (i = 0;  i < *count;  i++)
+        {
+            if (_glfwCompareVideoModes(result + i, &mode) == 0)
+                break;
+        }
+
+        // Skip duplicate modes
+        if (i < *count)
+            continue;
+
+        if (monitor->win32.modesPruned)
+        {
+            // Skip modes not supported by the connected displays
+            if (ChangeDisplaySettingsExW(monitor->win32.adapterName,
+                                         &dm,
+                                         NULL,
+                                         CDS_TEST,
+                                         NULL) != DISP_CHANGE_SUCCESSFUL)
+            {
+                continue;
+            }
+        }
+
+        if (*count == size)
+        {
+            size += 128;
+            result = (GLFWvidmode*) _glfw_realloc(result, size * sizeof(GLFWvidmode));
+        }
+
+        (*count)++;
+        result[*count - 1] = mode;
+    }
+
+    if (!*count)
+    {
+        // HACK: Report the current mode if no valid modes were found
+        result = _glfw_calloc(1, sizeof(GLFWvidmode));
+        _glfwGetVideoModeWin32(monitor, result);
+        *count = 1;
+    }
+
+    return result;
+}
+
+GLFWbool _glfwGetVideoModeWin32(_GLFWmonitor* monitor, GLFWvidmode* mode)
+{
+    DEVMODEW dm;
+    ZeroMemory(&dm, sizeof(dm));
+    dm.dmSize = sizeof(dm);
+
+    if (!EnumDisplaySettingsW(monitor->win32.adapterName, ENUM_CURRENT_SETTINGS, &dm))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to query display settings");
+        return GLFW_FALSE;
+    }
+
+    mode->width  = dm.dmPelsWidth;
+    mode->height = dm.dmPelsHeight;
+    mode->refreshRate = dm.dmDisplayFrequency;
+    _glfwSplitBPP(dm.dmBitsPerPel,
+                  &mode->redBits,
+                  &mode->greenBits,
+                  &mode->blueBits);
+
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwGetGammaRampWin32(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
+{
+    HDC dc;
+    WORD values[3][256];
+
+    dc = CreateDCW(L"DISPLAY", monitor->win32.adapterName, NULL, NULL);
+    GetDeviceGammaRamp(dc, values);
+    DeleteDC(dc);
+
+    _glfwAllocGammaArrays(ramp, 256);
+
+    memcpy(ramp->red,   values[0], sizeof(values[0]));
+    memcpy(ramp->green, values[1], sizeof(values[1]));
+    memcpy(ramp->blue,  values[2], sizeof(values[2]));
+
+    return GLFW_TRUE;
+}
+
+void _glfwSetGammaRampWin32(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
+{
+    HDC dc;
+    WORD values[3][256];
+
+    if (ramp->size != 256)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Gamma ramp size must be 256");
+        return;
+    }
+
+    memcpy(values[0], ramp->red,   sizeof(values[0]));
+    memcpy(values[1], ramp->green, sizeof(values[1]));
+    memcpy(values[2], ramp->blue,  sizeof(values[2]));
+
+    dc = CreateDCW(L"DISPLAY", monitor->win32.adapterName, NULL, NULL);
+    SetDeviceGammaRamp(dc, values);
+    DeleteDC(dc);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI const char* glfwGetWin32Adapter(GLFWmonitor* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_WIN32)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "Win32: Platform not initialized");
+        return NULL;
+    }
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    return monitor->win32.publicAdapterName;
+}
+
+GLFWAPI const char* glfwGetWin32Monitor(GLFWmonitor* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_WIN32)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "Win32: Platform not initialized");
+        return NULL;
+    }
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    return monitor->win32.publicDisplayName;
+}
+
+#endif // _GLFW_WIN32
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_platform.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_platform.h
new file mode 100644
index 000000000000..a2f8685272ab
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_platform.h
@@ -0,0 +1,627 @@
+//========================================================================
+// GLFW 3.5 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+// We don't need all the fancy stuff
+#ifndef NOMINMAX
+ #define NOMINMAX
+#endif
+
+#ifndef VC_EXTRALEAN
+ #define VC_EXTRALEAN
+#endif
+
+#ifndef WIN32_LEAN_AND_MEAN
+ #define WIN32_LEAN_AND_MEAN
+#endif
+
+// This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
+// example to allow applications to correctly declare a GL_KHR_debug callback)
+// but windows.h assumes no one will define APIENTRY before it does
+#undef APIENTRY
+
+// GLFW on Windows is Unicode only and does not work in MBCS mode
+#ifndef UNICODE
+ #define UNICODE
+#endif
+
+// GLFW requires Windows XP or later
+#if WINVER < 0x0501
+ #undef WINVER
+ #define WINVER 0x0501
+#endif
+#if _WIN32_WINNT < 0x0501
+ #undef _WIN32_WINNT
+ #define _WIN32_WINNT 0x0501
+#endif
+
+// GLFW uses DirectInput8 interfaces
+#define DIRECTINPUT_VERSION 0x0800
+
+// GLFW uses OEM cursor resources
+#define OEMRESOURCE
+
+#include <wctype.h>
+#include <windows.h>
+#include <dinput.h>
+#include <xinput.h>
+#include <dbt.h>
+
+// HACK: Define macros that some windows.h variants don't
+#ifndef WM_MOUSEHWHEEL
+ #define WM_MOUSEHWHEEL 0x020E
+#endif
+#ifndef WM_DWMCOMPOSITIONCHANGED
+ #define WM_DWMCOMPOSITIONCHANGED 0x031E
+#endif
+#ifndef WM_DWMCOLORIZATIONCOLORCHANGED
+ #define WM_DWMCOLORIZATIONCOLORCHANGED 0x0320
+#endif
+#ifndef WM_COPYGLOBALDATA
+ #define WM_COPYGLOBALDATA 0x0049
+#endif
+#ifndef WM_UNICHAR
+ #define WM_UNICHAR 0x0109
+#endif
+#ifndef UNICODE_NOCHAR
+ #define UNICODE_NOCHAR 0xFFFF
+#endif
+#ifndef WM_DPICHANGED
+ #define WM_DPICHANGED 0x02E0
+#endif
+#ifndef GET_XBUTTON_WPARAM
+ #define GET_XBUTTON_WPARAM(w) (HIWORD(w))
+#endif
+#ifndef EDS_ROTATEDMODE
+ #define EDS_ROTATEDMODE 0x00000004
+#endif
+#ifndef DISPLAY_DEVICE_ACTIVE
+ #define DISPLAY_DEVICE_ACTIVE 0x00000001
+#endif
+#ifndef _WIN32_WINNT_WINBLUE
+ #define _WIN32_WINNT_WINBLUE 0x0603
+#endif
+#ifndef _WIN32_WINNT_WIN8
+ #define _WIN32_WINNT_WIN8 0x0602
+#endif
+#ifndef WM_GETDPISCALEDSIZE
+ #define WM_GETDPISCALEDSIZE 0x02e4
+#endif
+#ifndef USER_DEFAULT_SCREEN_DPI
+ #define USER_DEFAULT_SCREEN_DPI 96
+#endif
+#ifndef OCR_HAND
+ #define OCR_HAND 32649
+#endif
+
+#if WINVER < 0x0601
+typedef struct
+{
+    DWORD cbSize;
+    DWORD ExtStatus;
+} CHANGEFILTERSTRUCT;
+#ifndef MSGFLT_ALLOW
+ #define MSGFLT_ALLOW 1
+#endif
+#endif /*Windows 7*/
+
+#if WINVER < 0x0600
+#define DWM_BB_ENABLE 0x00000001
+#define DWM_BB_BLURREGION 0x00000002
+typedef struct
+{
+    DWORD dwFlags;
+    BOOL fEnable;
+    HRGN hRgnBlur;
+    BOOL fTransitionOnMaximized;
+} DWM_BLURBEHIND;
+#else
+ #include <dwmapi.h>
+#endif /*Windows Vista*/
+
+#ifndef DPI_ENUMS_DECLARED
+typedef enum
+{
+    PROCESS_DPI_UNAWARE = 0,
+    PROCESS_SYSTEM_DPI_AWARE = 1,
+    PROCESS_PER_MONITOR_DPI_AWARE = 2
+} PROCESS_DPI_AWARENESS;
+typedef enum
+{
+    MDT_EFFECTIVE_DPI = 0,
+    MDT_ANGULAR_DPI = 1,
+    MDT_RAW_DPI = 2,
+    MDT_DEFAULT = MDT_EFFECTIVE_DPI
+} MONITOR_DPI_TYPE;
+#endif /*DPI_ENUMS_DECLARED*/
+
+#ifndef DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2
+#define DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 ((HANDLE) -4)
+#endif /*DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2*/
+
+// Replacement for versionhelpers.h macros, as we cannot rely on the
+// application having a correct embedded manifest
+//
+#define IsWindowsVistaOrGreater()                                     \
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_VISTA),   \
+                                        LOBYTE(_WIN32_WINNT_VISTA), 0)
+#define IsWindows7OrGreater()                                         \
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_WIN7),    \
+                                        LOBYTE(_WIN32_WINNT_WIN7), 0)
+#define IsWindows8OrGreater()                                         \
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_WIN8),    \
+                                        LOBYTE(_WIN32_WINNT_WIN8), 0)
+#define IsWindows8Point1OrGreater()                                   \
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_WINBLUE), \
+                                        LOBYTE(_WIN32_WINNT_WINBLUE), 0)
+
+// Windows 10 Anniversary Update
+#define _glfwIsWindows10Version1607OrGreaterWin32() \
+    _glfwIsWindows10BuildOrGreaterWin32(14393)
+// Windows 10 Creators Update
+#define _glfwIsWindows10Version1703OrGreaterWin32() \
+    _glfwIsWindows10BuildOrGreaterWin32(15063)
+
+// HACK: Define macros that some xinput.h variants don't
+#ifndef XINPUT_CAPS_WIRELESS
+ #define XINPUT_CAPS_WIRELESS 0x0002
+#endif
+#ifndef XINPUT_DEVSUBTYPE_WHEEL
+ #define XINPUT_DEVSUBTYPE_WHEEL 0x02
+#endif
+#ifndef XINPUT_DEVSUBTYPE_ARCADE_STICK
+ #define XINPUT_DEVSUBTYPE_ARCADE_STICK 0x03
+#endif
+#ifndef XINPUT_DEVSUBTYPE_FLIGHT_STICK
+ #define XINPUT_DEVSUBTYPE_FLIGHT_STICK 0x04
+#endif
+#ifndef XINPUT_DEVSUBTYPE_DANCE_PAD
+ #define XINPUT_DEVSUBTYPE_DANCE_PAD 0x05
+#endif
+#ifndef XINPUT_DEVSUBTYPE_GUITAR
+ #define XINPUT_DEVSUBTYPE_GUITAR 0x06
+#endif
+#ifndef XINPUT_DEVSUBTYPE_DRUM_KIT
+ #define XINPUT_DEVSUBTYPE_DRUM_KIT 0x08
+#endif
+#ifndef XINPUT_DEVSUBTYPE_ARCADE_PAD
+ #define XINPUT_DEVSUBTYPE_ARCADE_PAD 0x13
+#endif
+#ifndef XUSER_MAX_COUNT
+ #define XUSER_MAX_COUNT 4
+#endif
+
+// HACK: Define macros that some dinput.h variants don't
+#ifndef DIDFT_OPTIONAL
+ #define DIDFT_OPTIONAL 0x80000000
+#endif
+
+#define WGL_NUMBER_PIXEL_FORMATS_ARB 0x2000
+#define WGL_SUPPORT_OPENGL_ARB 0x2010
+#define WGL_DRAW_TO_WINDOW_ARB 0x2001
+#define WGL_PIXEL_TYPE_ARB 0x2013
+#define WGL_TYPE_RGBA_ARB 0x202b
+#define WGL_ACCELERATION_ARB 0x2003
+#define WGL_NO_ACCELERATION_ARB 0x2025
+#define WGL_RED_BITS_ARB 0x2015
+#define WGL_RED_SHIFT_ARB 0x2016
+#define WGL_GREEN_BITS_ARB 0x2017
+#define WGL_GREEN_SHIFT_ARB 0x2018
+#define WGL_BLUE_BITS_ARB 0x2019
+#define WGL_BLUE_SHIFT_ARB 0x201a
+#define WGL_ALPHA_BITS_ARB 0x201b
+#define WGL_ALPHA_SHIFT_ARB 0x201c
+#define WGL_ACCUM_BITS_ARB 0x201d
+#define WGL_ACCUM_RED_BITS_ARB 0x201e
+#define WGL_ACCUM_GREEN_BITS_ARB 0x201f
+#define WGL_ACCUM_BLUE_BITS_ARB 0x2020
+#define WGL_ACCUM_ALPHA_BITS_ARB 0x2021
+#define WGL_DEPTH_BITS_ARB 0x2022
+#define WGL_STENCIL_BITS_ARB 0x2023
+#define WGL_AUX_BUFFERS_ARB 0x2024
+#define WGL_STEREO_ARB 0x2012
+#define WGL_DOUBLE_BUFFER_ARB 0x2011
+#define WGL_SAMPLES_ARB 0x2042
+#define WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB 0x20a9
+#define WGL_CONTEXT_DEBUG_BIT_ARB 0x00000001
+#define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x00000002
+#define WGL_CONTEXT_PROFILE_MASK_ARB 0x9126
+#define WGL_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001
+#define WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x00000002
+#define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091
+#define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092
+#define WGL_CONTEXT_FLAGS_ARB 0x2094
+#define WGL_CONTEXT_ES2_PROFILE_BIT_EXT 0x00000004
+#define WGL_CONTEXT_ROBUST_ACCESS_BIT_ARB 0x00000004
+#define WGL_LOSE_CONTEXT_ON_RESET_ARB 0x8252
+#define WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB 0x8256
+#define WGL_NO_RESET_NOTIFICATION_ARB 0x8261
+#define WGL_CONTEXT_RELEASE_BEHAVIOR_ARB 0x2097
+#define WGL_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB 0
+#define WGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB 0x2098
+#define WGL_CONTEXT_OPENGL_NO_ERROR_ARB 0x31b3
+#define WGL_COLORSPACE_EXT 0x309d
+#define WGL_COLORSPACE_SRGB_EXT 0x3089
+
+#define ERROR_INVALID_VERSION_ARB 0x2095
+#define ERROR_INVALID_PROFILE_ARB 0x2096
+#define ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB 0x2054
+
+// xinput.dll function pointer typedefs
+typedef DWORD (WINAPI * PFN_XInputGetCapabilities)(DWORD,DWORD,XINPUT_CAPABILITIES*);
+typedef DWORD (WINAPI * PFN_XInputGetState)(DWORD,XINPUT_STATE*);
+#define XInputGetCapabilities _glfw.win32.xinput.GetCapabilities
+#define XInputGetState _glfw.win32.xinput.GetState
+
+// dinput8.dll function pointer typedefs
+typedef HRESULT (WINAPI * PFN_DirectInput8Create)(HINSTANCE,DWORD,REFIID,LPVOID*,LPUNKNOWN);
+#define DirectInput8Create _glfw.win32.dinput8.Create
+
+// user32.dll function pointer typedefs
+typedef BOOL (WINAPI * PFN_SetProcessDPIAware)(void);
+typedef BOOL (WINAPI * PFN_ChangeWindowMessageFilterEx)(HWND,UINT,DWORD,CHANGEFILTERSTRUCT*);
+typedef BOOL (WINAPI * PFN_EnableNonClientDpiScaling)(HWND);
+typedef BOOL (WINAPI * PFN_SetProcessDpiAwarenessContext)(HANDLE);
+typedef UINT (WINAPI * PFN_GetDpiForWindow)(HWND);
+typedef BOOL (WINAPI * PFN_AdjustWindowRectExForDpi)(LPRECT,DWORD,BOOL,DWORD,UINT);
+typedef int (WINAPI * PFN_GetSystemMetricsForDpi)(int,UINT);
+#define SetProcessDPIAware _glfw.win32.user32.SetProcessDPIAware_
+#define ChangeWindowMessageFilterEx _glfw.win32.user32.ChangeWindowMessageFilterEx_
+#define EnableNonClientDpiScaling _glfw.win32.user32.EnableNonClientDpiScaling_
+#define SetProcessDpiAwarenessContext _glfw.win32.user32.SetProcessDpiAwarenessContext_
+#define GetDpiForWindow _glfw.win32.user32.GetDpiForWindow_
+#define AdjustWindowRectExForDpi _glfw.win32.user32.AdjustWindowRectExForDpi_
+#define GetSystemMetricsForDpi _glfw.win32.user32.GetSystemMetricsForDpi_
+
+// dwmapi.dll function pointer typedefs
+typedef HRESULT (WINAPI * PFN_DwmIsCompositionEnabled)(BOOL*);
+typedef HRESULT (WINAPI * PFN_DwmFlush)(VOID);
+typedef HRESULT(WINAPI * PFN_DwmEnableBlurBehindWindow)(HWND,const DWM_BLURBEHIND*);
+typedef HRESULT (WINAPI * PFN_DwmGetColorizationColor)(DWORD*,BOOL*);
+#define DwmIsCompositionEnabled _glfw.win32.dwmapi.IsCompositionEnabled
+#define DwmFlush _glfw.win32.dwmapi.Flush
+#define DwmEnableBlurBehindWindow _glfw.win32.dwmapi.EnableBlurBehindWindow
+#define DwmGetColorizationColor _glfw.win32.dwmapi.GetColorizationColor
+
+// shcore.dll function pointer typedefs
+typedef HRESULT (WINAPI * PFN_SetProcessDpiAwareness)(PROCESS_DPI_AWARENESS);
+typedef HRESULT (WINAPI * PFN_GetDpiForMonitor)(HMONITOR,MONITOR_DPI_TYPE,UINT*,UINT*);
+#define SetProcessDpiAwareness _glfw.win32.shcore.SetProcessDpiAwareness_
+#define GetDpiForMonitor _glfw.win32.shcore.GetDpiForMonitor_
+
+// ntdll.dll function pointer typedefs
+typedef LONG (WINAPI * PFN_RtlVerifyVersionInfo)(OSVERSIONINFOEXW*,ULONG,ULONGLONG);
+#define RtlVerifyVersionInfo _glfw.win32.ntdll.RtlVerifyVersionInfo_
+
+// WGL extension pointer typedefs
+typedef BOOL (WINAPI * PFNWGLSWAPINTERVALEXTPROC)(int);
+typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBIVARBPROC)(HDC,int,int,UINT,const int*,int*);
+typedef const char* (WINAPI * PFNWGLGETEXTENSIONSSTRINGEXTPROC)(void);
+typedef const char* (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC)(HDC);
+typedef HGLRC (WINAPI * PFNWGLCREATECONTEXTATTRIBSARBPROC)(HDC,HGLRC,const int*);
+#define wglSwapIntervalEXT _glfw.wgl.SwapIntervalEXT
+#define wglGetPixelFormatAttribivARB _glfw.wgl.GetPixelFormatAttribivARB
+#define wglGetExtensionsStringEXT _glfw.wgl.GetExtensionsStringEXT
+#define wglGetExtensionsStringARB _glfw.wgl.GetExtensionsStringARB
+#define wglCreateContextAttribsARB _glfw.wgl.CreateContextAttribsARB
+
+// opengl32.dll function pointer typedefs
+typedef HGLRC (WINAPI * PFN_wglCreateContext)(HDC);
+typedef BOOL (WINAPI * PFN_wglDeleteContext)(HGLRC);
+typedef PROC (WINAPI * PFN_wglGetProcAddress)(LPCSTR);
+typedef HDC (WINAPI * PFN_wglGetCurrentDC)(void);
+typedef HGLRC (WINAPI * PFN_wglGetCurrentContext)(void);
+typedef BOOL (WINAPI * PFN_wglMakeCurrent)(HDC,HGLRC);
+typedef BOOL (WINAPI * PFN_wglShareLists)(HGLRC,HGLRC);
+#define wglCreateContext _glfw.wgl.CreateContext
+#define wglDeleteContext _glfw.wgl.DeleteContext
+#define wglGetProcAddress _glfw.wgl.GetProcAddress
+#define wglGetCurrentDC _glfw.wgl.GetCurrentDC
+#define wglGetCurrentContext _glfw.wgl.GetCurrentContext
+#define wglMakeCurrent _glfw.wgl.MakeCurrent
+#define wglShareLists _glfw.wgl.ShareLists
+
+typedef VkFlags VkWin32SurfaceCreateFlagsKHR;
+
+typedef struct VkWin32SurfaceCreateInfoKHR
+{
+    VkStructureType                 sType;
+    const void*                     pNext;
+    VkWin32SurfaceCreateFlagsKHR    flags;
+    HINSTANCE                       hinstance;
+    HWND                            hwnd;
+} VkWin32SurfaceCreateInfoKHR;
+
+typedef VkResult (APIENTRY *PFN_vkCreateWin32SurfaceKHR)(VkInstance,const VkWin32SurfaceCreateInfoKHR*,const VkAllocationCallbacks*,VkSurfaceKHR*);
+typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceWin32PresentationSupportKHR)(VkPhysicalDevice,uint32_t);
+
+#define GLFW_WIN32_WINDOW_STATE         _GLFWwindowWin32  win32;
+#define GLFW_WIN32_LIBRARY_WINDOW_STATE _GLFWlibraryWin32 win32;
+#define GLFW_WIN32_MONITOR_STATE        _GLFWmonitorWin32 win32;
+#define GLFW_WIN32_CURSOR_STATE         _GLFWcursorWin32  win32;
+
+#define GLFW_WGL_CONTEXT_STATE          _GLFWcontextWGL wgl;
+#define GLFW_WGL_LIBRARY_CONTEXT_STATE  _GLFWlibraryWGL wgl;
+
+
+// WGL-specific per-context data
+//
+typedef struct _GLFWcontextWGL
+{
+    HDC       dc;
+    HGLRC     handle;
+    int       interval;
+} _GLFWcontextWGL;
+
+// WGL-specific global data
+//
+typedef struct _GLFWlibraryWGL
+{
+    HINSTANCE                           instance;
+    PFN_wglCreateContext                CreateContext;
+    PFN_wglDeleteContext                DeleteContext;
+    PFN_wglGetProcAddress               GetProcAddress;
+    PFN_wglGetCurrentDC                 GetCurrentDC;
+    PFN_wglGetCurrentContext            GetCurrentContext;
+    PFN_wglMakeCurrent                  MakeCurrent;
+    PFN_wglShareLists                   ShareLists;
+
+    PFNWGLSWAPINTERVALEXTPROC           SwapIntervalEXT;
+    PFNWGLGETPIXELFORMATATTRIBIVARBPROC GetPixelFormatAttribivARB;
+    PFNWGLGETEXTENSIONSSTRINGEXTPROC    GetExtensionsStringEXT;
+    PFNWGLGETEXTENSIONSSTRINGARBPROC    GetExtensionsStringARB;
+    PFNWGLCREATECONTEXTATTRIBSARBPROC   CreateContextAttribsARB;
+    GLFWbool                            EXT_swap_control;
+    GLFWbool                            EXT_colorspace;
+    GLFWbool                            ARB_multisample;
+    GLFWbool                            ARB_framebuffer_sRGB;
+    GLFWbool                            EXT_framebuffer_sRGB;
+    GLFWbool                            ARB_pixel_format;
+    GLFWbool                            ARB_create_context;
+    GLFWbool                            ARB_create_context_profile;
+    GLFWbool                            EXT_create_context_es2_profile;
+    GLFWbool                            ARB_create_context_robustness;
+    GLFWbool                            ARB_create_context_no_error;
+    GLFWbool                            ARB_context_flush_control;
+} _GLFWlibraryWGL;
+
+// Win32-specific per-window data
+//
+typedef struct _GLFWwindowWin32
+{
+    HWND                handle;
+    HICON               bigIcon;
+    HICON               smallIcon;
+
+    GLFWbool            cursorTracked;
+    GLFWbool            frameAction;
+    GLFWbool            iconified;
+    GLFWbool            maximized;
+    // Whether to enable framebuffer transparency on DWM
+    GLFWbool            transparent;
+    GLFWbool            scaleToMonitor;
+    GLFWbool            keymenu;
+    GLFWbool            showDefault;
+
+    // Cached size used to filter out duplicate events
+    int                 width, height;
+
+    // The last received cursor position, regardless of source
+    int                 lastCursorPosX, lastCursorPosY;
+    // The last received high surrogate when decoding pairs of UTF-16 messages
+    WCHAR               highSurrogate;
+} _GLFWwindowWin32;
+
+// Win32-specific global data
+//
+typedef struct _GLFWlibraryWin32
+{
+    HINSTANCE           instance;
+    HWND                helperWindowHandle;
+    ATOM                helperWindowClass;
+    ATOM                mainWindowClass;
+    HDEVNOTIFY          deviceNotificationHandle;
+    int                 acquiredMonitorCount;
+    char*               clipboardString;
+    short int           keycodes[512];
+    short int           scancodes[GLFW_KEY_LAST + 1];
+    char                keynames[GLFW_KEY_LAST + 1][5];
+    // Where to place the cursor when re-enabled
+    double              restoreCursorPosX, restoreCursorPosY;
+    // The window whose disabled cursor mode is active
+    _GLFWwindow*        disabledCursorWindow;
+    // The window the cursor is captured in
+    _GLFWwindow*        capturedCursorWindow;
+    RAWINPUT*           rawInput;
+    int                 rawInputSize;
+    UINT                mouseTrailSize;
+    // The cursor handle to use to hide the cursor (NULL or a transparent cursor)
+    HCURSOR             blankCursor;
+
+    struct {
+        HINSTANCE                       instance;
+        PFN_DirectInput8Create          Create;
+        IDirectInput8W*                 api;
+    } dinput8;
+
+    struct {
+        HINSTANCE                       instance;
+        PFN_XInputGetCapabilities       GetCapabilities;
+        PFN_XInputGetState              GetState;
+    } xinput;
+
+    struct {
+        HINSTANCE                       instance;
+        PFN_SetProcessDPIAware          SetProcessDPIAware_;
+        PFN_ChangeWindowMessageFilterEx ChangeWindowMessageFilterEx_;
+        PFN_EnableNonClientDpiScaling   EnableNonClientDpiScaling_;
+        PFN_SetProcessDpiAwarenessContext SetProcessDpiAwarenessContext_;
+        PFN_GetDpiForWindow             GetDpiForWindow_;
+        PFN_AdjustWindowRectExForDpi    AdjustWindowRectExForDpi_;
+        PFN_GetSystemMetricsForDpi      GetSystemMetricsForDpi_;
+    } user32;
+
+    struct {
+        HINSTANCE                       instance;
+        PFN_DwmIsCompositionEnabled     IsCompositionEnabled;
+        PFN_DwmFlush                    Flush;
+        PFN_DwmEnableBlurBehindWindow   EnableBlurBehindWindow;
+        PFN_DwmGetColorizationColor     GetColorizationColor;
+    } dwmapi;
+
+    struct {
+        HINSTANCE                       instance;
+        PFN_SetProcessDpiAwareness      SetProcessDpiAwareness_;
+        PFN_GetDpiForMonitor            GetDpiForMonitor_;
+    } shcore;
+
+    struct {
+        HINSTANCE                       instance;
+        PFN_RtlVerifyVersionInfo        RtlVerifyVersionInfo_;
+    } ntdll;
+} _GLFWlibraryWin32;
+
+// Win32-specific per-monitor data
+//
+typedef struct _GLFWmonitorWin32
+{
+    HMONITOR            handle;
+    // This size matches the static size of DISPLAY_DEVICE.DeviceName
+    WCHAR               adapterName[32];
+    WCHAR               displayName[32];
+    char                publicAdapterName[32];
+    char                publicDisplayName[32];
+    GLFWbool            modesPruned;
+    GLFWbool            modeChanged;
+} _GLFWmonitorWin32;
+
+// Win32-specific per-cursor data
+//
+typedef struct _GLFWcursorWin32
+{
+    HCURSOR             handle;
+} _GLFWcursorWin32;
+
+
+GLFWbool _glfwConnectWin32(int platformID, _GLFWplatform* platform);
+int _glfwInitWin32(void);
+void _glfwTerminateWin32(void);
+
+WCHAR* _glfwCreateWideStringFromUTF8Win32(const char* source);
+char* _glfwCreateUTF8FromWideStringWin32(const WCHAR* source);
+BOOL _glfwIsWindowsVersionOrGreaterWin32(WORD major, WORD minor, WORD sp);
+BOOL _glfwIsWindows10BuildOrGreaterWin32(WORD build);
+void _glfwInputErrorWin32(int error, const char* description);
+void _glfwUpdateKeyNamesWin32(void);
+
+void _glfwPollMonitorsWin32(void);
+void _glfwSetVideoModeWin32(_GLFWmonitor* monitor, const GLFWvidmode* desired);
+void _glfwRestoreVideoModeWin32(_GLFWmonitor* monitor);
+void _glfwGetHMONITORContentScaleWin32(HMONITOR handle, float* xscale, float* yscale);
+
+GLFWbool _glfwCreateWindowWin32(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
+void _glfwDestroyWindowWin32(_GLFWwindow* window);
+void _glfwSetWindowTitleWin32(_GLFWwindow* window, const char* title);
+void _glfwSetWindowIconWin32(_GLFWwindow* window, int count, const GLFWimage* images);
+void _glfwGetWindowPosWin32(_GLFWwindow* window, int* xpos, int* ypos);
+void _glfwSetWindowPosWin32(_GLFWwindow* window, int xpos, int ypos);
+void _glfwGetWindowSizeWin32(_GLFWwindow* window, int* width, int* height);
+void _glfwSetWindowSizeWin32(_GLFWwindow* window, int width, int height);
+void _glfwSetWindowSizeLimitsWin32(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
+void _glfwSetWindowAspectRatioWin32(_GLFWwindow* window, int numer, int denom);
+void _glfwGetFramebufferSizeWin32(_GLFWwindow* window, int* width, int* height);
+void _glfwGetWindowFrameSizeWin32(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
+void _glfwGetWindowContentScaleWin32(_GLFWwindow* window, float* xscale, float* yscale);
+void _glfwIconifyWindowWin32(_GLFWwindow* window);
+void _glfwRestoreWindowWin32(_GLFWwindow* window);
+void _glfwMaximizeWindowWin32(_GLFWwindow* window);
+void _glfwShowWindowWin32(_GLFWwindow* window);
+void _glfwHideWindowWin32(_GLFWwindow* window);
+void _glfwRequestWindowAttentionWin32(_GLFWwindow* window);
+void _glfwFocusWindowWin32(_GLFWwindow* window);
+void _glfwSetWindowMonitorWin32(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
+GLFWbool _glfwWindowFocusedWin32(_GLFWwindow* window);
+GLFWbool _glfwWindowIconifiedWin32(_GLFWwindow* window);
+GLFWbool _glfwWindowVisibleWin32(_GLFWwindow* window);
+GLFWbool _glfwWindowMaximizedWin32(_GLFWwindow* window);
+GLFWbool _glfwWindowHoveredWin32(_GLFWwindow* window);
+GLFWbool _glfwFramebufferTransparentWin32(_GLFWwindow* window);
+void _glfwSetWindowResizableWin32(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowDecoratedWin32(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowFloatingWin32(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowMousePassthroughWin32(_GLFWwindow* window, GLFWbool enabled);
+float _glfwGetWindowOpacityWin32(_GLFWwindow* window);
+void _glfwSetWindowOpacityWin32(_GLFWwindow* window, float opacity);
+
+void _glfwSetRawMouseMotionWin32(_GLFWwindow *window, GLFWbool enabled);
+GLFWbool _glfwRawMouseMotionSupportedWin32(void);
+
+void _glfwPollEventsWin32(void);
+void _glfwWaitEventsWin32(void);
+void _glfwWaitEventsTimeoutWin32(double timeout);
+void _glfwPostEmptyEventWin32(void);
+
+void _glfwGetCursorPosWin32(_GLFWwindow* window, double* xpos, double* ypos);
+void _glfwSetCursorPosWin32(_GLFWwindow* window, double xpos, double ypos);
+void _glfwSetCursorModeWin32(_GLFWwindow* window, int mode);
+const char* _glfwGetScancodeNameWin32(int scancode);
+int _glfwGetKeyScancodeWin32(int key);
+GLFWbool _glfwCreateCursorWin32(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot);
+GLFWbool _glfwCreateStandardCursorWin32(_GLFWcursor* cursor, int shape);
+void _glfwDestroyCursorWin32(_GLFWcursor* cursor);
+void _glfwSetCursorWin32(_GLFWwindow* window, _GLFWcursor* cursor);
+void _glfwSetClipboardStringWin32(const char* string);
+const char* _glfwGetClipboardStringWin32(void);
+
+EGLenum _glfwGetEGLPlatformWin32(EGLint** attribs);
+EGLNativeDisplayType _glfwGetEGLNativeDisplayWin32(void);
+EGLNativeWindowType _glfwGetEGLNativeWindowWin32(_GLFWwindow* window);
+
+void _glfwGetRequiredInstanceExtensionsWin32(char** extensions);
+GLFWbool _glfwGetPhysicalDevicePresentationSupportWin32(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
+VkResult _glfwCreateWindowSurfaceWin32(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
+
+void _glfwFreeMonitorWin32(_GLFWmonitor* monitor);
+void _glfwGetMonitorPosWin32(_GLFWmonitor* monitor, int* xpos, int* ypos);
+void _glfwGetMonitorContentScaleWin32(_GLFWmonitor* monitor, float* xscale, float* yscale);
+void _glfwGetMonitorWorkareaWin32(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
+GLFWvidmode* _glfwGetVideoModesWin32(_GLFWmonitor* monitor, int* count);
+GLFWbool _glfwGetVideoModeWin32(_GLFWmonitor* monitor, GLFWvidmode* mode);
+GLFWbool _glfwGetGammaRampWin32(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
+void _glfwSetGammaRampWin32(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
+
+GLFWbool _glfwInitJoysticksWin32(void);
+void _glfwTerminateJoysticksWin32(void);
+GLFWbool _glfwPollJoystickWin32(_GLFWjoystick* js, int mode);
+const char* _glfwGetMappingNameWin32(void);
+void _glfwUpdateGamepadGUIDWin32(char* guid);
+
+GLFWbool _glfwInitWGL(void);
+void _glfwTerminateWGL(void);
+GLFWbool _glfwCreateContextWGL(_GLFWwindow* window,
+                               const _GLFWctxconfig* ctxconfig,
+                               const _GLFWfbconfig* fbconfig);
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_thread.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_thread.c
new file mode 100644
index 000000000000..6e418d7a552c
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_thread.c
@@ -0,0 +1,100 @@
+//========================================================================
+// GLFW 3.5 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_WIN32_THREAD)
+
+#include <assert.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwPlatformCreateTls(_GLFWtls* tls)
+{
+    assert(tls->win32.allocated == GLFW_FALSE);
+
+    tls->win32.index = TlsAlloc();
+    if (tls->win32.index == TLS_OUT_OF_INDEXES)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to allocate TLS index");
+        return GLFW_FALSE;
+    }
+
+    tls->win32.allocated = GLFW_TRUE;
+    return GLFW_TRUE;
+}
+
+void _glfwPlatformDestroyTls(_GLFWtls* tls)
+{
+    if (tls->win32.allocated)
+        TlsFree(tls->win32.index);
+    memset(tls, 0, sizeof(_GLFWtls));
+}
+
+void* _glfwPlatformGetTls(_GLFWtls* tls)
+{
+    assert(tls->win32.allocated == GLFW_TRUE);
+    return TlsGetValue(tls->win32.index);
+}
+
+void _glfwPlatformSetTls(_GLFWtls* tls, void* value)
+{
+    assert(tls->win32.allocated == GLFW_TRUE);
+    TlsSetValue(tls->win32.index, value);
+}
+
+GLFWbool _glfwPlatformCreateMutex(_GLFWmutex* mutex)
+{
+    assert(mutex->win32.allocated == GLFW_FALSE);
+    InitializeCriticalSection(&mutex->win32.section);
+    return mutex->win32.allocated = GLFW_TRUE;
+}
+
+void _glfwPlatformDestroyMutex(_GLFWmutex* mutex)
+{
+    if (mutex->win32.allocated)
+        DeleteCriticalSection(&mutex->win32.section);
+    memset(mutex, 0, sizeof(_GLFWmutex));
+}
+
+void _glfwPlatformLockMutex(_GLFWmutex* mutex)
+{
+    assert(mutex->win32.allocated == GLFW_TRUE);
+    EnterCriticalSection(&mutex->win32.section);
+}
+
+void _glfwPlatformUnlockMutex(_GLFWmutex* mutex)
+{
+    assert(mutex->win32.allocated == GLFW_TRUE);
+    LeaveCriticalSection(&mutex->win32.section);
+}
+
+#endif // GLFW_BUILD_WIN32_THREAD
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_thread.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_thread.h
new file mode 100644
index 000000000000..ca96fae22ca1
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_thread.h
@@ -0,0 +1,53 @@
+//========================================================================
+// GLFW 3.5 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+// This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
+// example to allow applications to correctly declare a GL_KHR_debug callback)
+// but windows.h assumes no one will define APIENTRY before it does
+#undef APIENTRY
+
+#include <windows.h>
+
+#define GLFW_WIN32_TLS_STATE            _GLFWtlsWin32     win32;
+#define GLFW_WIN32_MUTEX_STATE          _GLFWmutexWin32   win32;
+
+// Win32-specific thread local storage data
+//
+typedef struct _GLFWtlsWin32
+{
+    GLFWbool            allocated;
+    DWORD               index;
+} _GLFWtlsWin32;
+
+// Win32-specific mutex data
+//
+typedef struct _GLFWmutexWin32
+{
+    GLFWbool            allocated;
+    CRITICAL_SECTION    section;
+} _GLFWmutexWin32;
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_time.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_time.c
new file mode 100644
index 000000000000..4a4b2cbb3888
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_time.c
@@ -0,0 +1,54 @@
+//========================================================================
+// GLFW 3.5 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_WIN32_TIMER)
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwPlatformInitTimer(void)
+{
+    QueryPerformanceFrequency((LARGE_INTEGER*) &_glfw.timer.win32.frequency);
+}
+
+uint64_t _glfwPlatformGetTimerValue(void)
+{
+    uint64_t value;
+    QueryPerformanceCounter((LARGE_INTEGER*) &value);
+    return value;
+}
+
+uint64_t _glfwPlatformGetTimerFrequency(void)
+{
+    return _glfw.timer.win32.frequency;
+}
+
+#endif // GLFW_BUILD_WIN32_TIMER
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_time.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_time.h
new file mode 100644
index 000000000000..f72a5d048601
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_time.h
@@ -0,0 +1,43 @@
+//========================================================================
+// GLFW 3.5 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+// This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
+// example to allow applications to correctly declare a GL_KHR_debug callback)
+// but windows.h assumes no one will define APIENTRY before it does
+#undef APIENTRY
+
+#include <windows.h>
+
+#define GLFW_WIN32_LIBRARY_TIMER_STATE  _GLFWtimerWin32   win32;
+
+// Win32-specific global timer data
+//
+typedef struct _GLFWtimerWin32
+{
+    uint64_t            frequency;
+} _GLFWtimerWin32;
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_window.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_window.c
new file mode 100644
index 000000000000..d014944b8976
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/win32_window.c
@@ -0,0 +1,2596 @@
+//========================================================================
+// GLFW 3.5 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_WIN32)
+
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <windowsx.h>
+#include <shellapi.h>
+
+// Returns the window style for the specified window
+//
+static DWORD getWindowStyle(const _GLFWwindow* window)
+{
+    DWORD style = WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
+
+    if (window->monitor)
+        style |= WS_POPUP;
+    else
+    {
+        style |= WS_SYSMENU | WS_MINIMIZEBOX;
+
+        if (window->decorated)
+        {
+            style |= WS_CAPTION;
+
+            if (window->resizable)
+                style |= WS_MAXIMIZEBOX | WS_THICKFRAME;
+        }
+        else
+            style |= WS_POPUP;
+    }
+
+    return style;
+}
+
+// Returns the extended window style for the specified window
+//
+static DWORD getWindowExStyle(const _GLFWwindow* window)
+{
+    DWORD style = WS_EX_APPWINDOW;
+
+    if (window->monitor || window->floating)
+        style |= WS_EX_TOPMOST;
+
+    return style;
+}
+
+// Returns the image whose area most closely matches the desired one
+//
+static const GLFWimage* chooseImage(int count, const GLFWimage* images,
+                                    int width, int height)
+{
+    int i, leastDiff = INT_MAX;
+    const GLFWimage* closest = NULL;
+
+    for (i = 0;  i < count;  i++)
+    {
+        const int currDiff = abs(images[i].width * images[i].height -
+                                 width * height);
+        if (currDiff < leastDiff)
+        {
+            closest = images + i;
+            leastDiff = currDiff;
+        }
+    }
+
+    return closest;
+}
+
+// Creates an RGBA icon or cursor
+//
+static HICON createIcon(const GLFWimage* image, int xhot, int yhot, GLFWbool icon)
+{
+    int i;
+    HDC dc;
+    HICON handle;
+    HBITMAP color, mask;
+    BITMAPV5HEADER bi;
+    ICONINFO ii;
+    unsigned char* target = NULL;
+    unsigned char* source = image->pixels;
+
+    ZeroMemory(&bi, sizeof(bi));
+    bi.bV5Size        = sizeof(bi);
+    bi.bV5Width       = image->width;
+    bi.bV5Height      = -image->height;
+    bi.bV5Planes      = 1;
+    bi.bV5BitCount    = 32;
+    bi.bV5Compression = BI_BITFIELDS;
+    bi.bV5RedMask     = 0x00ff0000;
+    bi.bV5GreenMask   = 0x0000ff00;
+    bi.bV5BlueMask    = 0x000000ff;
+    bi.bV5AlphaMask   = 0xff000000;
+
+    dc = GetDC(NULL);
+    color = CreateDIBSection(dc,
+                             (BITMAPINFO*) &bi,
+                             DIB_RGB_COLORS,
+                             (void**) &target,
+                             NULL,
+                             (DWORD) 0);
+    ReleaseDC(NULL, dc);
+
+    if (!color)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to create RGBA bitmap");
+        return NULL;
+    }
+
+    mask = CreateBitmap(image->width, image->height, 1, 1, NULL);
+    if (!mask)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to create mask bitmap");
+        DeleteObject(color);
+        return NULL;
+    }
+
+    for (i = 0;  i < image->width * image->height;  i++)
+    {
+        target[0] = source[2];
+        target[1] = source[1];
+        target[2] = source[0];
+        target[3] = source[3];
+        target += 4;
+        source += 4;
+    }
+
+    ZeroMemory(&ii, sizeof(ii));
+    ii.fIcon    = icon;
+    ii.xHotspot = xhot;
+    ii.yHotspot = yhot;
+    ii.hbmMask  = mask;
+    ii.hbmColor = color;
+
+    handle = CreateIconIndirect(&ii);
+
+    DeleteObject(color);
+    DeleteObject(mask);
+
+    if (!handle)
+    {
+        if (icon)
+        {
+            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                 "Win32: Failed to create icon");
+        }
+        else
+        {
+            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                 "Win32: Failed to create cursor");
+        }
+    }
+
+    return handle;
+}
+
+// Enforce the content area aspect ratio based on which edge is being dragged
+//
+static void applyAspectRatio(_GLFWwindow* window, int edge, RECT* area)
+{
+    RECT frame = {0};
+    const float ratio = (float) window->numer / (float) window->denom;
+    const DWORD style = getWindowStyle(window);
+    const DWORD exStyle = getWindowExStyle(window);
+
+    if (_glfwIsWindows10Version1607OrGreaterWin32())
+    {
+        AdjustWindowRectExForDpi(&frame, style, FALSE, exStyle,
+                                 GetDpiForWindow(window->win32.handle));
+    }
+    else
+        AdjustWindowRectEx(&frame, style, FALSE, exStyle);
+
+    if (edge == WMSZ_LEFT  || edge == WMSZ_BOTTOMLEFT ||
+        edge == WMSZ_RIGHT || edge == WMSZ_BOTTOMRIGHT)
+    {
+        area->bottom = area->top + (frame.bottom - frame.top) +
+            (int) (((area->right - area->left) - (frame.right - frame.left)) / ratio);
+    }
+    else if (edge == WMSZ_TOPLEFT || edge == WMSZ_TOPRIGHT)
+    {
+        area->top = area->bottom - (frame.bottom - frame.top) -
+            (int) (((area->right - area->left) - (frame.right - frame.left)) / ratio);
+    }
+    else if (edge == WMSZ_TOP || edge == WMSZ_BOTTOM)
+    {
+        area->right = area->left + (frame.right - frame.left) +
+            (int) (((area->bottom - area->top) - (frame.bottom - frame.top)) * ratio);
+    }
+}
+
+// Updates the cursor image according to its cursor mode
+//
+static void updateCursorImage(_GLFWwindow* window)
+{
+    if (window->cursorMode == GLFW_CURSOR_NORMAL ||
+        window->cursorMode == GLFW_CURSOR_CAPTURED)
+    {
+        if (window->cursor)
+            SetCursor(window->cursor->win32.handle);
+        else
+            SetCursor(LoadCursorW(NULL, IDC_ARROW));
+    }
+    else
+    {
+        // NOTE: Via Remote Desktop, setting the cursor to NULL does not hide it.
+        // HACK: When running locally, it is set to NULL, but when connected via Remote
+        //       Desktop, this is a transparent cursor.
+        SetCursor(_glfw.win32.blankCursor);
+    }
+}
+
+// Sets the cursor clip rect to the window content area
+//
+static void captureCursor(_GLFWwindow* window)
+{
+    RECT clipRect;
+    GetClientRect(window->win32.handle, &clipRect);
+    ClientToScreen(window->win32.handle, (POINT*) &clipRect.left);
+    ClientToScreen(window->win32.handle, (POINT*) &clipRect.right);
+    ClipCursor(&clipRect);
+    _glfw.win32.capturedCursorWindow = window;
+}
+
+// Disabled clip cursor
+//
+static void releaseCursor(void)
+{
+    ClipCursor(NULL);
+    _glfw.win32.capturedCursorWindow = NULL;
+}
+
+// Enables WM_INPUT messages for the mouse for the specified window
+//
+static void enableRawMouseMotion(_GLFWwindow* window)
+{
+    const RAWINPUTDEVICE rid = { 0x01, 0x02, 0, window->win32.handle };
+
+    if (!RegisterRawInputDevices(&rid, 1, sizeof(rid)))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to register raw input device");
+    }
+}
+
+// Disables WM_INPUT messages for the mouse
+//
+static void disableRawMouseMotion(_GLFWwindow* window)
+{
+    const RAWINPUTDEVICE rid = { 0x01, 0x02, RIDEV_REMOVE, NULL };
+
+    if (!RegisterRawInputDevices(&rid, 1, sizeof(rid)))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to remove raw input device");
+    }
+}
+
+// Apply disabled cursor mode to a focused window
+//
+static void disableCursor(_GLFWwindow* window)
+{
+    _glfw.win32.disabledCursorWindow = window;
+    _glfwGetCursorPosWin32(window,
+                           &_glfw.win32.restoreCursorPosX,
+                           &_glfw.win32.restoreCursorPosY);
+    updateCursorImage(window);
+    _glfwCenterCursorInContentArea(window);
+    captureCursor(window);
+
+    if (window->rawMouseMotion)
+        enableRawMouseMotion(window);
+}
+
+// Exit disabled cursor mode for the specified window
+//
+static void enableCursor(_GLFWwindow* window)
+{
+    if (window->rawMouseMotion)
+        disableRawMouseMotion(window);
+
+    _glfw.win32.disabledCursorWindow = NULL;
+    releaseCursor();
+    _glfwSetCursorPosWin32(window,
+                           _glfw.win32.restoreCursorPosX,
+                           _glfw.win32.restoreCursorPosY);
+    updateCursorImage(window);
+}
+
+// Returns whether the cursor is in the content area of the specified window
+//
+static GLFWbool cursorInContentArea(_GLFWwindow* window)
+{
+    RECT area;
+    POINT pos;
+
+    if (!GetCursorPos(&pos))
+        return GLFW_FALSE;
+
+    if (WindowFromPoint(pos) != window->win32.handle)
+        return GLFW_FALSE;
+
+    GetClientRect(window->win32.handle, &area);
+    ClientToScreen(window->win32.handle, (POINT*) &area.left);
+    ClientToScreen(window->win32.handle, (POINT*) &area.right);
+
+    return PtInRect(&area, pos);
+}
+
+// Update native window styles to match attributes
+//
+static void updateWindowStyles(const _GLFWwindow* window)
+{
+    RECT rect;
+    DWORD style = GetWindowLongW(window->win32.handle, GWL_STYLE);
+    style &= ~(WS_OVERLAPPEDWINDOW | WS_POPUP);
+    style |= getWindowStyle(window);
+
+    GetClientRect(window->win32.handle, &rect);
+
+    if (_glfwIsWindows10Version1607OrGreaterWin32())
+    {
+        AdjustWindowRectExForDpi(&rect, style, FALSE,
+                                 getWindowExStyle(window),
+                                 GetDpiForWindow(window->win32.handle));
+    }
+    else
+        AdjustWindowRectEx(&rect, style, FALSE, getWindowExStyle(window));
+
+    ClientToScreen(window->win32.handle, (POINT*) &rect.left);
+    ClientToScreen(window->win32.handle, (POINT*) &rect.right);
+    SetWindowLongW(window->win32.handle, GWL_STYLE, style);
+    SetWindowPos(window->win32.handle, HWND_TOP,
+                 rect.left, rect.top,
+                 rect.right - rect.left, rect.bottom - rect.top,
+                 SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOZORDER);
+}
+
+// Update window framebuffer transparency
+//
+static void updateFramebufferTransparency(const _GLFWwindow* window)
+{
+    BOOL composition, opaque;
+    DWORD color;
+
+    if (!IsWindowsVistaOrGreater())
+        return;
+
+    if (FAILED(DwmIsCompositionEnabled(&composition)) || !composition)
+       return;
+
+    if (IsWindows8OrGreater() ||
+        (SUCCEEDED(DwmGetColorizationColor(&color, &opaque)) && !opaque))
+    {
+        HRGN region = CreateRectRgn(0, 0, -1, -1);
+        DWM_BLURBEHIND bb = {0};
+        bb.dwFlags = DWM_BB_ENABLE | DWM_BB_BLURREGION;
+        bb.hRgnBlur = region;
+        bb.fEnable = TRUE;
+
+        DwmEnableBlurBehindWindow(window->win32.handle, &bb);
+        DeleteObject(region);
+    }
+    else
+    {
+        // HACK: Disable framebuffer transparency on Windows 7 when the
+        //       colorization color is opaque, because otherwise the window
+        //       contents is blended additively with the previous frame instead
+        //       of replacing it
+        DWM_BLURBEHIND bb = {0};
+        bb.dwFlags = DWM_BB_ENABLE;
+        DwmEnableBlurBehindWindow(window->win32.handle, &bb);
+    }
+}
+
+// Retrieves and translates modifier keys
+//
+static int getKeyMods(void)
+{
+    int mods = 0;
+
+    if (GetKeyState(VK_SHIFT) & 0x8000)
+        mods |= GLFW_MOD_SHIFT;
+    if (GetKeyState(VK_CONTROL) & 0x8000)
+        mods |= GLFW_MOD_CONTROL;
+    if (GetKeyState(VK_MENU) & 0x8000)
+        mods |= GLFW_MOD_ALT;
+    if ((GetKeyState(VK_LWIN) | GetKeyState(VK_RWIN)) & 0x8000)
+        mods |= GLFW_MOD_SUPER;
+    if (GetKeyState(VK_CAPITAL) & 1)
+        mods |= GLFW_MOD_CAPS_LOCK;
+    if (GetKeyState(VK_NUMLOCK) & 1)
+        mods |= GLFW_MOD_NUM_LOCK;
+
+    return mods;
+}
+
+static void fitToMonitor(_GLFWwindow* window)
+{
+    MONITORINFO mi = { sizeof(mi) };
+    GetMonitorInfoW(window->monitor->win32.handle, &mi);
+    SetWindowPos(window->win32.handle, HWND_TOPMOST,
+                 mi.rcMonitor.left,
+                 mi.rcMonitor.top,
+                 mi.rcMonitor.right - mi.rcMonitor.left,
+                 mi.rcMonitor.bottom - mi.rcMonitor.top,
+                 SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOCOPYBITS);
+}
+
+// Make the specified window and its video mode active on its monitor
+//
+static void acquireMonitor(_GLFWwindow* window)
+{
+    if (!_glfw.win32.acquiredMonitorCount)
+    {
+        SetThreadExecutionState(ES_CONTINUOUS | ES_DISPLAY_REQUIRED);
+
+        // HACK: When mouse trails are enabled the cursor becomes invisible when
+        //       the OpenGL ICD switches to page flipping
+        SystemParametersInfoW(SPI_GETMOUSETRAILS, 0, &_glfw.win32.mouseTrailSize, 0);
+        SystemParametersInfoW(SPI_SETMOUSETRAILS, 0, 0, 0);
+    }
+
+    if (!window->monitor->window)
+        _glfw.win32.acquiredMonitorCount++;
+
+    _glfwSetVideoModeWin32(window->monitor, &window->videoMode);
+    _glfwInputMonitorWindow(window->monitor, window);
+}
+
+// Remove the window and restore the original video mode
+//
+static void releaseMonitor(_GLFWwindow* window)
+{
+    if (window->monitor->window != window)
+        return;
+
+    _glfw.win32.acquiredMonitorCount--;
+    if (!_glfw.win32.acquiredMonitorCount)
+    {
+        SetThreadExecutionState(ES_CONTINUOUS);
+
+        // HACK: Restore mouse trail length saved in acquireMonitor
+        SystemParametersInfoW(SPI_SETMOUSETRAILS, _glfw.win32.mouseTrailSize, 0, 0);
+    }
+
+    _glfwInputMonitorWindow(window->monitor, NULL);
+    _glfwRestoreVideoModeWin32(window->monitor);
+}
+
+// Manually maximize the window, for when SW_MAXIMIZE cannot be used
+//
+static void maximizeWindowManually(_GLFWwindow* window)
+{
+    RECT rect;
+    DWORD style;
+    MONITORINFO mi = { sizeof(mi) };
+
+    GetMonitorInfoW(MonitorFromWindow(window->win32.handle,
+                                      MONITOR_DEFAULTTONEAREST), &mi);
+
+    rect = mi.rcWork;
+
+    if (window->maxwidth != GLFW_DONT_CARE && window->maxheight != GLFW_DONT_CARE)
+    {
+        rect.right = _glfw_min(rect.right, rect.left + window->maxwidth);
+        rect.bottom = _glfw_min(rect.bottom, rect.top + window->maxheight);
+    }
+
+    style = GetWindowLongW(window->win32.handle, GWL_STYLE);
+    style |= WS_MAXIMIZE;
+    SetWindowLongW(window->win32.handle, GWL_STYLE, style);
+
+    if (window->decorated)
+    {
+        const DWORD exStyle = GetWindowLongW(window->win32.handle, GWL_EXSTYLE);
+
+        if (_glfwIsWindows10Version1607OrGreaterWin32())
+        {
+            const UINT dpi = GetDpiForWindow(window->win32.handle);
+            AdjustWindowRectExForDpi(&rect, style, FALSE, exStyle, dpi);
+            OffsetRect(&rect, 0, GetSystemMetricsForDpi(SM_CYCAPTION, dpi));
+        }
+        else
+        {
+            AdjustWindowRectEx(&rect, style, FALSE, exStyle);
+            OffsetRect(&rect, 0, GetSystemMetrics(SM_CYCAPTION));
+        }
+
+        rect.bottom = _glfw_min(rect.bottom, mi.rcWork.bottom);
+    }
+
+    SetWindowPos(window->win32.handle, HWND_TOP,
+                 rect.left,
+                 rect.top,
+                 rect.right - rect.left,
+                 rect.bottom - rect.top,
+                 SWP_NOACTIVATE | SWP_NOZORDER | SWP_FRAMECHANGED);
+}
+
+// Window procedure for user-created windows
+//
+static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+    _GLFWwindow* window = GetPropW(hWnd, L"GLFW");
+    if (!window)
+    {
+        if (uMsg == WM_NCCREATE)
+        {
+            if (_glfwIsWindows10Version1607OrGreaterWin32())
+            {
+                const CREATESTRUCTW* cs = (const CREATESTRUCTW*) lParam;
+                const _GLFWwndconfig* wndconfig = cs->lpCreateParams;
+
+                // On per-monitor DPI aware V1 systems, only enable
+                // non-client scaling for windows that scale the client area
+                // We need WM_GETDPISCALEDSIZE from V2 to keep the client
+                // area static when the non-client area is scaled
+                if (wndconfig && wndconfig->scaleToMonitor)
+                    EnableNonClientDpiScaling(hWnd);
+            }
+        }
+
+        return DefWindowProcW(hWnd, uMsg, wParam, lParam);
+    }
+
+    switch (uMsg)
+    {
+        case WM_MOUSEACTIVATE:
+        {
+            // HACK: Postpone cursor disabling when the window was activated by
+            //       clicking a caption button
+            if (HIWORD(lParam) == WM_LBUTTONDOWN)
+            {
+                if (LOWORD(lParam) != HTCLIENT)
+                    window->win32.frameAction = GLFW_TRUE;
+            }
+
+            break;
+        }
+
+        case WM_CAPTURECHANGED:
+        {
+            // HACK: Disable the cursor once the caption button action has been
+            //       completed or cancelled
+            if (lParam == 0 && window->win32.frameAction)
+            {
+                if (window->cursorMode == GLFW_CURSOR_DISABLED)
+                    disableCursor(window);
+                else if (window->cursorMode == GLFW_CURSOR_CAPTURED)
+                    captureCursor(window);
+
+                window->win32.frameAction = GLFW_FALSE;
+            }
+
+            break;
+        }
+
+        case WM_SETFOCUS:
+        {
+            _glfwInputWindowFocus(window, GLFW_TRUE);
+
+            // HACK: Do not disable cursor while the user is interacting with
+            //       a caption button
+            if (window->win32.frameAction)
+                break;
+
+            if (window->cursorMode == GLFW_CURSOR_DISABLED)
+                disableCursor(window);
+            else if (window->cursorMode == GLFW_CURSOR_CAPTURED)
+                captureCursor(window);
+
+            return 0;
+        }
+
+        case WM_KILLFOCUS:
+        {
+            if (window->cursorMode == GLFW_CURSOR_DISABLED)
+                enableCursor(window);
+            else if (window->cursorMode == GLFW_CURSOR_CAPTURED)
+                releaseCursor();
+
+            if (window->monitor && window->autoIconify)
+                _glfwIconifyWindowWin32(window);
+
+            _glfwInputWindowFocus(window, GLFW_FALSE);
+            return 0;
+        }
+
+        case WM_SYSCOMMAND:
+        {
+            switch (wParam & 0xfff0)
+            {
+                case SC_SCREENSAVE:
+                case SC_MONITORPOWER:
+                {
+                    if (window->monitor)
+                    {
+                        // We are running in full screen mode, so disallow
+                        // screen saver and screen blanking
+                        return 0;
+                    }
+                    else
+                        break;
+                }
+
+                // User trying to access application menu using ALT?
+                case SC_KEYMENU:
+                {
+                    if (!window->win32.keymenu)
+                        return 0;
+
+                    break;
+                }
+            }
+            break;
+        }
+
+        case WM_CLOSE:
+        {
+            _glfwInputWindowCloseRequest(window);
+            return 0;
+        }
+
+        case WM_INPUTLANGCHANGE:
+        {
+            _glfwUpdateKeyNamesWin32();
+            break;
+        }
+
+        case WM_CHAR:
+        case WM_SYSCHAR:
+        {
+            if (wParam >= 0xd800 && wParam <= 0xdbff)
+                window->win32.highSurrogate = (WCHAR) wParam;
+            else
+            {
+                uint32_t codepoint = 0;
+
+                if (wParam >= 0xdc00 && wParam <= 0xdfff)
+                {
+                    if (window->win32.highSurrogate)
+                    {
+                        codepoint += (window->win32.highSurrogate - 0xd800) << 10;
+                        codepoint += (WCHAR) wParam - 0xdc00;
+                        codepoint += 0x10000;
+                    }
+                }
+                else
+                    codepoint = (WCHAR) wParam;
+
+                window->win32.highSurrogate = 0;
+                _glfwInputChar(window, codepoint, getKeyMods(), uMsg != WM_SYSCHAR);
+            }
+
+            if (uMsg == WM_SYSCHAR && window->win32.keymenu)
+                break;
+
+            return 0;
+        }
+
+        case WM_UNICHAR:
+        {
+            if (wParam == UNICODE_NOCHAR)
+            {
+                // WM_UNICHAR is not sent by Windows, but is sent by some
+                // third-party input method engine
+                // Returning TRUE here announces support for this message
+                return TRUE;
+            }
+
+            _glfwInputChar(window, (uint32_t) wParam, getKeyMods(), GLFW_TRUE);
+            return 0;
+        }
+
+        case WM_KEYDOWN:
+        case WM_SYSKEYDOWN:
+        case WM_KEYUP:
+        case WM_SYSKEYUP:
+        {
+            int key, scancode;
+            const int action = (HIWORD(lParam) & KF_UP) ? GLFW_RELEASE : GLFW_PRESS;
+            const int mods = getKeyMods();
+
+            scancode = (HIWORD(lParam) & (KF_EXTENDED | 0xff));
+            if (!scancode)
+            {
+                // NOTE: Some synthetic key messages have a scancode of zero
+                // HACK: Map the virtual key back to a usable scancode
+                scancode = MapVirtualKeyW((UINT) wParam, MAPVK_VK_TO_VSC);
+            }
+
+            // HACK: Alt+PrtSc has a different scancode than just PrtSc
+            if (scancode == 0x54)
+                scancode = 0x137;
+
+            // HACK: Ctrl+Pause has a different scancode than just Pause
+            if (scancode == 0x146)
+                scancode = 0x45;
+
+            // HACK: CJK IME sets the extended bit for right Shift
+            if (scancode == 0x136)
+                scancode = 0x36;
+
+            key = _glfw.win32.keycodes[scancode];
+
+            // The Ctrl keys require special handling
+            if (wParam == VK_CONTROL)
+            {
+                if (HIWORD(lParam) & KF_EXTENDED)
+                {
+                    // Right side keys have the extended key bit set
+                    key = GLFW_KEY_RIGHT_CONTROL;
+                }
+                else
+                {
+                    // NOTE: Alt Gr sends Left Ctrl followed by Right Alt
+                    // HACK: We only want one event for Alt Gr, so if we detect
+                    //       this sequence we discard this Left Ctrl message now
+                    //       and later report Right Alt normally
+                    MSG next;
+                    const DWORD time = GetMessageTime();
+
+                    if (PeekMessageW(&next, NULL, 0, 0, PM_NOREMOVE))
+                    {
+                        if (next.message == WM_KEYDOWN ||
+                            next.message == WM_SYSKEYDOWN ||
+                            next.message == WM_KEYUP ||
+                            next.message == WM_SYSKEYUP)
+                        {
+                            if (next.wParam == VK_MENU &&
+                                (HIWORD(next.lParam) & KF_EXTENDED) &&
+                                next.time == time)
+                            {
+                                // Next message is Right Alt down so discard this
+                                break;
+                            }
+                        }
+                    }
+
+                    // This is a regular Left Ctrl message
+                    key = GLFW_KEY_LEFT_CONTROL;
+                }
+            }
+            else if (wParam == VK_PROCESSKEY)
+            {
+                // IME notifies that keys have been filtered by setting the
+                // virtual key-code to VK_PROCESSKEY
+                break;
+            }
+
+            if (action == GLFW_RELEASE && wParam == VK_SHIFT)
+            {
+                // HACK: Release both Shift keys on Shift up event, as when both
+                //       are pressed the first release does not emit any event
+                // NOTE: The other half of this is in _glfwPollEventsWin32
+                _glfwInputKey(window, GLFW_KEY_LEFT_SHIFT, scancode, action, mods);
+                _glfwInputKey(window, GLFW_KEY_RIGHT_SHIFT, scancode, action, mods);
+            }
+            else if (wParam == VK_SNAPSHOT)
+            {
+                // HACK: Key down is not reported for the Print Screen key
+                _glfwInputKey(window, key, scancode, GLFW_PRESS, mods);
+                _glfwInputKey(window, key, scancode, GLFW_RELEASE, mods);
+            }
+            else
+                _glfwInputKey(window, key, scancode, action, mods);
+
+            break;
+        }
+
+        case WM_LBUTTONDOWN:
+        case WM_RBUTTONDOWN:
+        case WM_MBUTTONDOWN:
+        case WM_XBUTTONDOWN:
+        case WM_LBUTTONUP:
+        case WM_RBUTTONUP:
+        case WM_MBUTTONUP:
+        case WM_XBUTTONUP:
+        {
+            int i, button, action;
+
+            if (uMsg == WM_LBUTTONDOWN || uMsg == WM_LBUTTONUP)
+                button = GLFW_MOUSE_BUTTON_LEFT;
+            else if (uMsg == WM_RBUTTONDOWN || uMsg == WM_RBUTTONUP)
+                button = GLFW_MOUSE_BUTTON_RIGHT;
+            else if (uMsg == WM_MBUTTONDOWN || uMsg == WM_MBUTTONUP)
+                button = GLFW_MOUSE_BUTTON_MIDDLE;
+            else if (GET_XBUTTON_WPARAM(wParam) == XBUTTON1)
+                button = GLFW_MOUSE_BUTTON_4;
+            else
+                button = GLFW_MOUSE_BUTTON_5;
+
+            if (uMsg == WM_LBUTTONDOWN || uMsg == WM_RBUTTONDOWN ||
+                uMsg == WM_MBUTTONDOWN || uMsg == WM_XBUTTONDOWN)
+            {
+                action = GLFW_PRESS;
+            }
+            else
+                action = GLFW_RELEASE;
+
+            for (i = 0;  i <= GLFW_MOUSE_BUTTON_LAST;  i++)
+            {
+                if (window->mouseButtons[i] == GLFW_PRESS)
+                    break;
+            }
+
+            if (i > GLFW_MOUSE_BUTTON_LAST)
+                SetCapture(hWnd);
+
+            _glfwInputMouseClick(window, button, action, getKeyMods());
+
+            for (i = 0;  i <= GLFW_MOUSE_BUTTON_LAST;  i++)
+            {
+                if (window->mouseButtons[i] == GLFW_PRESS)
+                    break;
+            }
+
+            if (i > GLFW_MOUSE_BUTTON_LAST)
+                ReleaseCapture();
+
+            if (uMsg == WM_XBUTTONDOWN || uMsg == WM_XBUTTONUP)
+                return TRUE;
+
+            return 0;
+        }
+
+        case WM_MOUSEMOVE:
+        {
+            const int x = GET_X_LPARAM(lParam);
+            const int y = GET_Y_LPARAM(lParam);
+
+            if (!window->win32.cursorTracked)
+            {
+                TRACKMOUSEEVENT tme;
+                ZeroMemory(&tme, sizeof(tme));
+                tme.cbSize = sizeof(tme);
+                tme.dwFlags = TME_LEAVE;
+                tme.hwndTrack = window->win32.handle;
+                TrackMouseEvent(&tme);
+
+                window->win32.cursorTracked = GLFW_TRUE;
+                _glfwInputCursorEnter(window, GLFW_TRUE);
+            }
+
+            if (window->cursorMode == GLFW_CURSOR_DISABLED)
+            {
+                const int dx = x - window->win32.lastCursorPosX;
+                const int dy = y - window->win32.lastCursorPosY;
+
+                if (_glfw.win32.disabledCursorWindow != window)
+                    break;
+                if (window->rawMouseMotion)
+                    break;
+
+                _glfwInputCursorPos(window,
+                                    window->virtualCursorPosX + dx,
+                                    window->virtualCursorPosY + dy);
+            }
+            else
+                _glfwInputCursorPos(window, x, y);
+
+            window->win32.lastCursorPosX = x;
+            window->win32.lastCursorPosY = y;
+
+            return 0;
+        }
+
+        case WM_INPUT:
+        {
+            UINT size = 0;
+            HRAWINPUT ri = (HRAWINPUT) lParam;
+            RAWINPUT* data = NULL;
+            int dx, dy;
+
+            if (_glfw.win32.disabledCursorWindow != window)
+                break;
+            if (!window->rawMouseMotion)
+                break;
+
+            GetRawInputData(ri, RID_INPUT, NULL, &size, sizeof(RAWINPUTHEADER));
+            if (size > (UINT) _glfw.win32.rawInputSize)
+            {
+                _glfw_free(_glfw.win32.rawInput);
+                _glfw.win32.rawInput = _glfw_calloc(size, 1);
+                _glfw.win32.rawInputSize = size;
+            }
+
+            size = _glfw.win32.rawInputSize;
+            if (GetRawInputData(ri, RID_INPUT,
+                                _glfw.win32.rawInput, &size,
+                                sizeof(RAWINPUTHEADER)) == (UINT) -1)
+            {
+                _glfwInputError(GLFW_PLATFORM_ERROR,
+                                "Win32: Failed to retrieve raw input data");
+                break;
+            }
+
+            data = _glfw.win32.rawInput;
+            if (data->data.mouse.usFlags & MOUSE_MOVE_ABSOLUTE)
+            {
+                POINT pos = {0};
+                int width, height;
+
+                if (data->data.mouse.usFlags & MOUSE_VIRTUAL_DESKTOP)
+                {
+                    pos.x += GetSystemMetrics(SM_XVIRTUALSCREEN);
+                    pos.y += GetSystemMetrics(SM_YVIRTUALSCREEN);
+                    width = GetSystemMetrics(SM_CXVIRTUALSCREEN);
+                    height = GetSystemMetrics(SM_CYVIRTUALSCREEN);
+                }
+                else
+                {
+                    width = GetSystemMetrics(SM_CXSCREEN);
+                    height = GetSystemMetrics(SM_CYSCREEN);
+                }
+
+                pos.x += (int) ((data->data.mouse.lLastX / 65535.f) * width);
+                pos.y += (int) ((data->data.mouse.lLastY / 65535.f) * height);
+                ScreenToClient(window->win32.handle, &pos);
+
+                dx = pos.x - window->win32.lastCursorPosX;
+                dy = pos.y - window->win32.lastCursorPosY;
+            }
+            else
+            {
+                dx = data->data.mouse.lLastX;
+                dy = data->data.mouse.lLastY;
+            }
+
+            _glfwInputCursorPos(window,
+                                window->virtualCursorPosX + dx,
+                                window->virtualCursorPosY + dy);
+
+            window->win32.lastCursorPosX += dx;
+            window->win32.lastCursorPosY += dy;
+            break;
+        }
+
+        case WM_MOUSELEAVE:
+        {
+            window->win32.cursorTracked = GLFW_FALSE;
+            _glfwInputCursorEnter(window, GLFW_FALSE);
+            return 0;
+        }
+
+        case WM_MOUSEWHEEL:
+        {
+            _glfwInputScroll(window, 0.0, (SHORT) HIWORD(wParam) / (double) WHEEL_DELTA);
+            return 0;
+        }
+
+        case WM_MOUSEHWHEEL:
+        {
+            // This message is only sent on Windows Vista and later
+            // NOTE: The X-axis is inverted for consistency with macOS and X11
+            _glfwInputScroll(window, -((SHORT) HIWORD(wParam) / (double) WHEEL_DELTA), 0.0);
+            return 0;
+        }
+
+        case WM_ENTERSIZEMOVE:
+        case WM_ENTERMENULOOP:
+        {
+            if (window->win32.frameAction)
+                break;
+
+            // HACK: Enable the cursor while the user is moving or
+            //       resizing the window or using the window menu
+            if (window->cursorMode == GLFW_CURSOR_DISABLED)
+                enableCursor(window);
+            else if (window->cursorMode == GLFW_CURSOR_CAPTURED)
+                releaseCursor();
+
+            break;
+        }
+
+        case WM_EXITSIZEMOVE:
+        case WM_EXITMENULOOP:
+        {
+            if (window->win32.frameAction)
+                break;
+
+            // HACK: Disable the cursor once the user is done moving or
+            //       resizing the window or using the menu
+            if (window->cursorMode == GLFW_CURSOR_DISABLED)
+                disableCursor(window);
+            else if (window->cursorMode == GLFW_CURSOR_CAPTURED)
+                captureCursor(window);
+
+            break;
+        }
+
+        case WM_SIZE:
+        {
+            const int width = LOWORD(lParam);
+            const int height = HIWORD(lParam);
+            const GLFWbool iconified = wParam == SIZE_MINIMIZED;
+            const GLFWbool maximized = wParam == SIZE_MAXIMIZED ||
+                                       (window->win32.maximized &&
+                                        wParam != SIZE_RESTORED);
+
+            if (_glfw.win32.capturedCursorWindow == window)
+                captureCursor(window);
+
+            if (window->win32.iconified != iconified)
+                _glfwInputWindowIconify(window, iconified);
+
+            if (window->win32.maximized != maximized)
+                _glfwInputWindowMaximize(window, maximized);
+
+            if (width != window->win32.width || height != window->win32.height)
+            {
+                window->win32.width = width;
+                window->win32.height = height;
+
+                _glfwInputFramebufferSize(window, width, height);
+                _glfwInputWindowSize(window, width, height);
+            }
+
+            if (window->monitor && window->win32.iconified != iconified)
+            {
+                if (iconified)
+                    releaseMonitor(window);
+                else
+                {
+                    acquireMonitor(window);
+                    fitToMonitor(window);
+                }
+            }
+
+            window->win32.iconified = iconified;
+            window->win32.maximized = maximized;
+            return 0;
+        }
+
+        case WM_MOVE:
+        {
+            if (_glfw.win32.capturedCursorWindow == window)
+                captureCursor(window);
+
+            // NOTE: This cannot use LOWORD/HIWORD recommended by MSDN, as
+            // those macros do not handle negative window positions correctly
+            _glfwInputWindowPos(window,
+                                GET_X_LPARAM(lParam),
+                                GET_Y_LPARAM(lParam));
+            return 0;
+        }
+
+        case WM_SIZING:
+        {
+            if (window->numer == GLFW_DONT_CARE ||
+                window->denom == GLFW_DONT_CARE)
+            {
+                break;
+            }
+
+            applyAspectRatio(window, (int) wParam, (RECT*) lParam);
+            return TRUE;
+        }
+
+        case WM_GETMINMAXINFO:
+        {
+            RECT frame = {0};
+            MINMAXINFO* mmi = (MINMAXINFO*) lParam;
+            const DWORD style = getWindowStyle(window);
+            const DWORD exStyle = getWindowExStyle(window);
+
+            if (window->monitor)
+                break;
+
+            if (_glfwIsWindows10Version1607OrGreaterWin32())
+            {
+                AdjustWindowRectExForDpi(&frame, style, FALSE, exStyle,
+                                         GetDpiForWindow(window->win32.handle));
+            }
+            else
+                AdjustWindowRectEx(&frame, style, FALSE, exStyle);
+
+            if (window->minwidth != GLFW_DONT_CARE &&
+                window->minheight != GLFW_DONT_CARE)
+            {
+                mmi->ptMinTrackSize.x = window->minwidth + frame.right - frame.left;
+                mmi->ptMinTrackSize.y = window->minheight + frame.bottom - frame.top;
+            }
+
+            if (window->maxwidth != GLFW_DONT_CARE &&
+                window->maxheight != GLFW_DONT_CARE)
+            {
+                mmi->ptMaxTrackSize.x = window->maxwidth + frame.right - frame.left;
+                mmi->ptMaxTrackSize.y = window->maxheight + frame.bottom - frame.top;
+            }
+
+            if (!window->decorated)
+            {
+                MONITORINFO mi;
+                const HMONITOR mh = MonitorFromWindow(window->win32.handle,
+                                                      MONITOR_DEFAULTTONEAREST);
+
+                ZeroMemory(&mi, sizeof(mi));
+                mi.cbSize = sizeof(mi);
+                GetMonitorInfoW(mh, &mi);
+
+                mmi->ptMaxPosition.x = mi.rcWork.left - mi.rcMonitor.left;
+                mmi->ptMaxPosition.y = mi.rcWork.top - mi.rcMonitor.top;
+                mmi->ptMaxSize.x = mi.rcWork.right - mi.rcWork.left;
+                mmi->ptMaxSize.y = mi.rcWork.bottom - mi.rcWork.top;
+            }
+
+            return 0;
+        }
+
+        case WM_PAINT:
+        {
+            _glfwInputWindowDamage(window);
+            break;
+        }
+
+        case WM_ERASEBKGND:
+        {
+            return TRUE;
+        }
+
+        case WM_NCACTIVATE:
+        case WM_NCPAINT:
+        {
+            // Prevent title bar from being drawn after restoring a minimized
+            // undecorated window
+            if (!window->decorated)
+                return TRUE;
+
+            break;
+        }
+
+        case WM_DWMCOMPOSITIONCHANGED:
+        case WM_DWMCOLORIZATIONCOLORCHANGED:
+        {
+            if (window->win32.transparent)
+                updateFramebufferTransparency(window);
+            return 0;
+        }
+
+        case WM_GETDPISCALEDSIZE:
+        {
+            if (window->win32.scaleToMonitor)
+                break;
+
+            // Adjust the window size to keep the content area size constant
+            if (_glfwIsWindows10Version1703OrGreaterWin32())
+            {
+                RECT source = {0}, target = {0};
+                SIZE* size = (SIZE*) lParam;
+
+                AdjustWindowRectExForDpi(&source, getWindowStyle(window),
+                                         FALSE, getWindowExStyle(window),
+                                         GetDpiForWindow(window->win32.handle));
+                AdjustWindowRectExForDpi(&target, getWindowStyle(window),
+                                         FALSE, getWindowExStyle(window),
+                                         LOWORD(wParam));
+
+                size->cx += (target.right - target.left) -
+                            (source.right - source.left);
+                size->cy += (target.bottom - target.top) -
+                            (source.bottom - source.top);
+                return TRUE;
+            }
+
+            break;
+        }
+
+        case WM_DPICHANGED:
+        {
+            const float xscale = HIWORD(wParam) / (float) USER_DEFAULT_SCREEN_DPI;
+            const float yscale = LOWORD(wParam) / (float) USER_DEFAULT_SCREEN_DPI;
+
+            // Resize windowed mode windows that either permit rescaling or that
+            // need it to compensate for non-client area scaling
+            if (!window->monitor &&
+                (window->win32.scaleToMonitor ||
+                 _glfwIsWindows10Version1703OrGreaterWin32()))
+            {
+                RECT* suggested = (RECT*) lParam;
+                SetWindowPos(window->win32.handle, HWND_TOP,
+                             suggested->left,
+                             suggested->top,
+                             suggested->right - suggested->left,
+                             suggested->bottom - suggested->top,
+                             SWP_NOACTIVATE | SWP_NOZORDER);
+            }
+
+            _glfwInputWindowContentScale(window, xscale, yscale);
+            break;
+        }
+
+        case WM_SETCURSOR:
+        {
+            if (LOWORD(lParam) == HTCLIENT)
+            {
+                updateCursorImage(window);
+                return TRUE;
+            }
+
+            break;
+        }
+
+        case WM_DROPFILES:
+        {
+            HDROP drop = (HDROP) wParam;
+            POINT pt;
+            int i;
+
+            const int count = DragQueryFileW(drop, 0xffffffff, NULL, 0);
+            char** paths = _glfw_calloc(count, sizeof(char*));
+
+            // Move the mouse to the position of the drop
+            DragQueryPoint(drop, &pt);
+            _glfwInputCursorPos(window, pt.x, pt.y);
+
+            for (i = 0;  i < count;  i++)
+            {
+                const UINT length = DragQueryFileW(drop, i, NULL, 0);
+                WCHAR* buffer = _glfw_calloc((size_t) length + 1, sizeof(WCHAR));
+
+                DragQueryFileW(drop, i, buffer, length + 1);
+                paths[i] = _glfwCreateUTF8FromWideStringWin32(buffer);
+
+                _glfw_free(buffer);
+            }
+
+            _glfwInputDrop(window, count, (const char**) paths);
+
+            for (i = 0;  i < count;  i++)
+                _glfw_free(paths[i]);
+            _glfw_free(paths);
+
+            DragFinish(drop);
+            return 0;
+        }
+    }
+
+    return DefWindowProcW(hWnd, uMsg, wParam, lParam);
+}
+
+// Creates the GLFW window
+//
+static int createNativeWindow(_GLFWwindow* window,
+                              const _GLFWwndconfig* wndconfig,
+                              const _GLFWfbconfig* fbconfig)
+{
+    int frameX, frameY, frameWidth, frameHeight;
+    WCHAR* wideTitle;
+    DWORD style = getWindowStyle(window);
+    DWORD exStyle = getWindowExStyle(window);
+
+    if (!_glfw.win32.mainWindowClass)
+    {
+        WNDCLASSEXW wc = { sizeof(wc) };
+        wc.style         = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
+        wc.lpfnWndProc   = windowProc;
+        wc.hInstance     = _glfw.win32.instance;
+        wc.hCursor       = LoadCursorW(NULL, IDC_ARROW);
+#if defined(_GLFW_WNDCLASSNAME)
+        wc.lpszClassName = _GLFW_WNDCLASSNAME;
+#else
+        wc.lpszClassName = L"GLFW30";
+#endif
+        // Load user-provided icon if available
+        wc.hIcon = LoadImageW(GetModuleHandleW(NULL),
+                              L"GLFW_ICON", IMAGE_ICON,
+                              0, 0, LR_DEFAULTSIZE | LR_SHARED);
+        if (!wc.hIcon)
+        {
+            // No user-provided icon found, load default icon
+            wc.hIcon = LoadImageW(NULL,
+                                  IDI_APPLICATION, IMAGE_ICON,
+                                  0, 0, LR_DEFAULTSIZE | LR_SHARED);
+        }
+
+        _glfw.win32.mainWindowClass = RegisterClassExW(&wc);
+        if (!_glfw.win32.mainWindowClass)
+        {
+            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                 "Win32: Failed to register window class");
+            return GLFW_FALSE;
+        }
+    }
+
+    if (GetSystemMetrics(SM_REMOTESESSION))
+    {
+        // NOTE: On Remote Desktop, setting the cursor to NULL does not hide it
+        // HACK: Create a transparent cursor and always set that instead of NULL
+        //       When not on Remote Desktop, this handle is NULL and normal hiding is used
+        if (!_glfw.win32.blankCursor)
+        {
+            const int cursorWidth = GetSystemMetrics(SM_CXCURSOR);
+            const int cursorHeight = GetSystemMetrics(SM_CYCURSOR);
+
+            unsigned char* cursorPixels = _glfw_calloc(cursorWidth * cursorHeight, 4);
+            if (!cursorPixels)
+                return GLFW_FALSE;
+
+            // NOTE: Windows checks whether the image is fully transparent and if so
+            //       just ignores the alpha channel and makes the whole cursor opaque
+            // HACK: Make one pixel slightly less transparent
+            cursorPixels[3] = 1;
+
+            const GLFWimage cursorImage = { cursorWidth, cursorHeight, cursorPixels };
+            _glfw.win32.blankCursor = createIcon(&cursorImage, 0, 0, FALSE);
+            _glfw_free(cursorPixels);
+
+            if (!_glfw.win32.blankCursor)
+                return GLFW_FALSE;
+        }
+    }
+
+    if (window->monitor)
+    {
+        MONITORINFO mi = { sizeof(mi) };
+        GetMonitorInfoW(window->monitor->win32.handle, &mi);
+
+        // NOTE: This window placement is temporary and approximate, as the
+        //       correct position and size cannot be known until the monitor
+        //       video mode has been picked in _glfwSetVideoModeWin32
+        frameX = mi.rcMonitor.left;
+        frameY = mi.rcMonitor.top;
+        frameWidth  = mi.rcMonitor.right - mi.rcMonitor.left;
+        frameHeight = mi.rcMonitor.bottom - mi.rcMonitor.top;
+    }
+    else
+    {
+        RECT rect = { 0, 0, wndconfig->width, wndconfig->height };
+
+        window->win32.maximized = wndconfig->maximized;
+        if (wndconfig->maximized)
+            style |= WS_MAXIMIZE;
+
+        AdjustWindowRectEx(&rect, style, FALSE, exStyle);
+
+        if (wndconfig->xpos == GLFW_ANY_POSITION && wndconfig->ypos == GLFW_ANY_POSITION)
+        {
+            frameX = CW_USEDEFAULT;
+            frameY = CW_USEDEFAULT;
+        }
+        else
+        {
+            frameX = wndconfig->xpos + rect.left;
+            frameY = wndconfig->ypos + rect.top;
+        }
+
+        frameWidth  = rect.right - rect.left;
+        frameHeight = rect.bottom - rect.top;
+    }
+
+    wideTitle = _glfwCreateWideStringFromUTF8Win32(wndconfig->title);
+    if (!wideTitle)
+        return GLFW_FALSE;
+
+    window->win32.handle = CreateWindowExW(exStyle,
+                                           MAKEINTATOM(_glfw.win32.mainWindowClass),
+                                           wideTitle,
+                                           style,
+                                           frameX, frameY,
+                                           frameWidth, frameHeight,
+                                           NULL, // No parent window
+                                           NULL, // No window menu
+                                           _glfw.win32.instance,
+                                           (LPVOID) wndconfig);
+
+    _glfw_free(wideTitle);
+
+    if (!window->win32.handle)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to create window");
+        return GLFW_FALSE;
+    }
+
+    SetPropW(window->win32.handle, L"GLFW", window);
+
+    if (IsWindows7OrGreater())
+    {
+        ChangeWindowMessageFilterEx(window->win32.handle,
+                                    WM_DROPFILES, MSGFLT_ALLOW, NULL);
+        ChangeWindowMessageFilterEx(window->win32.handle,
+                                    WM_COPYDATA, MSGFLT_ALLOW, NULL);
+        ChangeWindowMessageFilterEx(window->win32.handle,
+                                    WM_COPYGLOBALDATA, MSGFLT_ALLOW, NULL);
+    }
+
+    window->win32.scaleToMonitor = wndconfig->scaleToMonitor;
+    window->win32.keymenu = wndconfig->win32.keymenu;
+    window->win32.showDefault = wndconfig->win32.showDefault;
+
+    if (!window->monitor)
+    {
+        RECT rect = { 0, 0, wndconfig->width, wndconfig->height };
+        WINDOWPLACEMENT wp = { sizeof(wp) };
+        const HMONITOR mh = MonitorFromWindow(window->win32.handle,
+                                              MONITOR_DEFAULTTONEAREST);
+
+        // Adjust window rect to account for DPI scaling of the window frame and
+        // (if enabled) DPI scaling of the content area
+        // This cannot be done until we know what monitor the window was placed on
+        // Only update the restored window rect as the window may be maximized
+
+        if (wndconfig->scaleToMonitor)
+        {
+            float xscale, yscale;
+            _glfwGetHMONITORContentScaleWin32(mh, &xscale, &yscale);
+
+            if (xscale > 0.f && yscale > 0.f)
+            {
+                rect.right = (int) (rect.right * xscale);
+                rect.bottom = (int) (rect.bottom * yscale);
+            }
+        }
+
+        if (_glfwIsWindows10Version1607OrGreaterWin32())
+        {
+            AdjustWindowRectExForDpi(&rect, style, FALSE, exStyle,
+                                     GetDpiForWindow(window->win32.handle));
+        }
+        else
+            AdjustWindowRectEx(&rect, style, FALSE, exStyle);
+
+        GetWindowPlacement(window->win32.handle, &wp);
+        OffsetRect(&rect,
+                   wp.rcNormalPosition.left - rect.left,
+                   wp.rcNormalPosition.top - rect.top);
+
+        wp.rcNormalPosition = rect;
+        wp.showCmd = SW_HIDE;
+        SetWindowPlacement(window->win32.handle, &wp);
+
+        // Adjust rect of maximized undecorated window, because by default Windows will
+        // make such a window cover the whole monitor instead of its workarea
+
+        if (wndconfig->maximized && !wndconfig->decorated)
+        {
+            MONITORINFO mi = { sizeof(mi) };
+            GetMonitorInfoW(mh, &mi);
+
+            SetWindowPos(window->win32.handle, HWND_TOP,
+                         mi.rcWork.left,
+                         mi.rcWork.top,
+                         mi.rcWork.right - mi.rcWork.left,
+                         mi.rcWork.bottom - mi.rcWork.top,
+                         SWP_NOACTIVATE | SWP_NOZORDER);
+        }
+    }
+
+    DragAcceptFiles(window->win32.handle, TRUE);
+
+    if (fbconfig->transparent)
+    {
+        updateFramebufferTransparency(window);
+        window->win32.transparent = GLFW_TRUE;
+    }
+
+    _glfwGetWindowSizeWin32(window, &window->win32.width, &window->win32.height);
+
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwCreateWindowWin32(_GLFWwindow* window,
+                                const _GLFWwndconfig* wndconfig,
+                                const _GLFWctxconfig* ctxconfig,
+                                const _GLFWfbconfig* fbconfig)
+{
+    if (!createNativeWindow(window, wndconfig, fbconfig))
+        return GLFW_FALSE;
+
+    if (ctxconfig->client != GLFW_NO_API)
+    {
+        if (ctxconfig->source == GLFW_NATIVE_CONTEXT_API)
+        {
+            if (!_glfwInitWGL())
+                return GLFW_FALSE;
+            if (!_glfwCreateContextWGL(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+        else if (ctxconfig->source == GLFW_EGL_CONTEXT_API)
+        {
+            if (!_glfwInitEGL())
+                return GLFW_FALSE;
+            if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+        else if (ctxconfig->source == GLFW_OSMESA_CONTEXT_API)
+        {
+            if (!_glfwInitOSMesa())
+                return GLFW_FALSE;
+            if (!_glfwCreateContextOSMesa(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+
+        if (!_glfwRefreshContextAttribs(window, ctxconfig))
+            return GLFW_FALSE;
+    }
+
+    if (wndconfig->mousePassthrough)
+        _glfwSetWindowMousePassthroughWin32(window, GLFW_TRUE);
+
+    if (window->monitor)
+    {
+        _glfwShowWindowWin32(window);
+        _glfwFocusWindowWin32(window);
+        acquireMonitor(window);
+        fitToMonitor(window);
+
+        if (wndconfig->centerCursor)
+            _glfwCenterCursorInContentArea(window);
+    }
+    else
+    {
+        if (wndconfig->visible)
+        {
+            _glfwShowWindowWin32(window);
+            if (wndconfig->focused)
+                _glfwFocusWindowWin32(window);
+        }
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwDestroyWindowWin32(_GLFWwindow* window)
+{
+    if (window->monitor)
+        releaseMonitor(window);
+
+    if (window->context.destroy)
+        window->context.destroy(window);
+
+    if (_glfw.win32.disabledCursorWindow == window)
+        enableCursor(window);
+
+    if (_glfw.win32.capturedCursorWindow == window)
+        releaseCursor();
+
+    if (window->win32.handle)
+    {
+        RemovePropW(window->win32.handle, L"GLFW");
+        DestroyWindow(window->win32.handle);
+        window->win32.handle = NULL;
+    }
+
+    if (window->win32.bigIcon)
+        DestroyIcon(window->win32.bigIcon);
+
+    if (window->win32.smallIcon)
+        DestroyIcon(window->win32.smallIcon);
+}
+
+void _glfwSetWindowTitleWin32(_GLFWwindow* window, const char* title)
+{
+    WCHAR* wideTitle = _glfwCreateWideStringFromUTF8Win32(title);
+    if (!wideTitle)
+        return;
+
+    SetWindowTextW(window->win32.handle, wideTitle);
+    _glfw_free(wideTitle);
+}
+
+void _glfwSetWindowIconWin32(_GLFWwindow* window, int count, const GLFWimage* images)
+{
+    HICON bigIcon = NULL, smallIcon = NULL;
+
+    if (count)
+    {
+        const GLFWimage* bigImage = chooseImage(count, images,
+                                                GetSystemMetrics(SM_CXICON),
+                                                GetSystemMetrics(SM_CYICON));
+        const GLFWimage* smallImage = chooseImage(count, images,
+                                                  GetSystemMetrics(SM_CXSMICON),
+                                                  GetSystemMetrics(SM_CYSMICON));
+
+        bigIcon = createIcon(bigImage, 0, 0, GLFW_TRUE);
+        smallIcon = createIcon(smallImage, 0, 0, GLFW_TRUE);
+    }
+    else
+    {
+        bigIcon = (HICON) GetClassLongPtrW(window->win32.handle, GCLP_HICON);
+        smallIcon = (HICON) GetClassLongPtrW(window->win32.handle, GCLP_HICONSM);
+    }
+
+    SendMessageW(window->win32.handle, WM_SETICON, ICON_BIG, (LPARAM) bigIcon);
+    SendMessageW(window->win32.handle, WM_SETICON, ICON_SMALL, (LPARAM) smallIcon);
+
+    if (window->win32.bigIcon)
+        DestroyIcon(window->win32.bigIcon);
+
+    if (window->win32.smallIcon)
+        DestroyIcon(window->win32.smallIcon);
+
+    if (count)
+    {
+        window->win32.bigIcon = bigIcon;
+        window->win32.smallIcon = smallIcon;
+    }
+}
+
+void _glfwGetWindowPosWin32(_GLFWwindow* window, int* xpos, int* ypos)
+{
+    POINT pos = { 0, 0 };
+    ClientToScreen(window->win32.handle, &pos);
+
+    if (xpos)
+        *xpos = pos.x;
+    if (ypos)
+        *ypos = pos.y;
+}
+
+void _glfwSetWindowPosWin32(_GLFWwindow* window, int xpos, int ypos)
+{
+    RECT rect = { xpos, ypos, xpos, ypos };
+
+    if (_glfwIsWindows10Version1607OrGreaterWin32())
+    {
+        AdjustWindowRectExForDpi(&rect, getWindowStyle(window),
+                                 FALSE, getWindowExStyle(window),
+                                 GetDpiForWindow(window->win32.handle));
+    }
+    else
+    {
+        AdjustWindowRectEx(&rect, getWindowStyle(window),
+                           FALSE, getWindowExStyle(window));
+    }
+
+    SetWindowPos(window->win32.handle, NULL, rect.left, rect.top, 0, 0,
+                 SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOSIZE);
+}
+
+void _glfwGetWindowSizeWin32(_GLFWwindow* window, int* width, int* height)
+{
+    RECT area;
+    GetClientRect(window->win32.handle, &area);
+
+    if (width)
+        *width = area.right;
+    if (height)
+        *height = area.bottom;
+}
+
+void _glfwSetWindowSizeWin32(_GLFWwindow* window, int width, int height)
+{
+    if (window->monitor)
+    {
+        if (window->monitor->window == window)
+        {
+            acquireMonitor(window);
+            fitToMonitor(window);
+        }
+    }
+    else
+    {
+        RECT rect = { 0, 0, width, height };
+
+        if (_glfwIsWindows10Version1607OrGreaterWin32())
+        {
+            AdjustWindowRectExForDpi(&rect, getWindowStyle(window),
+                                     FALSE, getWindowExStyle(window),
+                                     GetDpiForWindow(window->win32.handle));
+        }
+        else
+        {
+            AdjustWindowRectEx(&rect, getWindowStyle(window),
+                               FALSE, getWindowExStyle(window));
+        }
+
+        SetWindowPos(window->win32.handle, HWND_TOP,
+                     0, 0, rect.right - rect.left, rect.bottom - rect.top,
+                     SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOMOVE | SWP_NOZORDER);
+    }
+}
+
+void _glfwSetWindowSizeLimitsWin32(_GLFWwindow* window,
+                                   int minwidth, int minheight,
+                                   int maxwidth, int maxheight)
+{
+    RECT area;
+
+    if ((minwidth == GLFW_DONT_CARE || minheight == GLFW_DONT_CARE) &&
+        (maxwidth == GLFW_DONT_CARE || maxheight == GLFW_DONT_CARE))
+    {
+        return;
+    }
+
+    GetWindowRect(window->win32.handle, &area);
+    MoveWindow(window->win32.handle,
+               area.left, area.top,
+               area.right - area.left,
+               area.bottom - area.top, TRUE);
+}
+
+void _glfwSetWindowAspectRatioWin32(_GLFWwindow* window, int numer, int denom)
+{
+    RECT area;
+
+    if (numer == GLFW_DONT_CARE || denom == GLFW_DONT_CARE)
+        return;
+
+    GetWindowRect(window->win32.handle, &area);
+    applyAspectRatio(window, WMSZ_BOTTOMRIGHT, &area);
+    MoveWindow(window->win32.handle,
+               area.left, area.top,
+               area.right - area.left,
+               area.bottom - area.top, TRUE);
+}
+
+void _glfwGetFramebufferSizeWin32(_GLFWwindow* window, int* width, int* height)
+{
+    _glfwGetWindowSizeWin32(window, width, height);
+}
+
+void _glfwGetWindowFrameSizeWin32(_GLFWwindow* window,
+                                  int* left, int* top,
+                                  int* right, int* bottom)
+{
+    RECT rect;
+    int width, height;
+
+    _glfwGetWindowSizeWin32(window, &width, &height);
+    SetRect(&rect, 0, 0, width, height);
+
+    if (_glfwIsWindows10Version1607OrGreaterWin32())
+    {
+        AdjustWindowRectExForDpi(&rect, getWindowStyle(window),
+                                 FALSE, getWindowExStyle(window),
+                                 GetDpiForWindow(window->win32.handle));
+    }
+    else
+    {
+        AdjustWindowRectEx(&rect, getWindowStyle(window),
+                           FALSE, getWindowExStyle(window));
+    }
+
+    if (left)
+        *left = -rect.left;
+    if (top)
+        *top = -rect.top;
+    if (right)
+        *right = rect.right - width;
+    if (bottom)
+        *bottom = rect.bottom - height;
+}
+
+void _glfwGetWindowContentScaleWin32(_GLFWwindow* window, float* xscale, float* yscale)
+{
+    const HANDLE handle = MonitorFromWindow(window->win32.handle,
+                                            MONITOR_DEFAULTTONEAREST);
+    _glfwGetHMONITORContentScaleWin32(handle, xscale, yscale);
+}
+
+void _glfwIconifyWindowWin32(_GLFWwindow* window)
+{
+    ShowWindow(window->win32.handle, SW_MINIMIZE);
+}
+
+void _glfwRestoreWindowWin32(_GLFWwindow* window)
+{
+    ShowWindow(window->win32.handle, SW_RESTORE);
+}
+
+void _glfwMaximizeWindowWin32(_GLFWwindow* window)
+{
+    if (IsWindowVisible(window->win32.handle))
+        ShowWindow(window->win32.handle, SW_MAXIMIZE);
+    else
+        maximizeWindowManually(window);
+}
+
+void _glfwShowWindowWin32(_GLFWwindow* window)
+{
+    int showCommand = SW_SHOWNA;
+
+    if (window->win32.showDefault)
+    {
+        // NOTE: GLFW windows currently do not seem to match the Windows 10 definition of
+        //       a main window, so even SW_SHOWDEFAULT does nothing
+        //       This definition is undocumented and can change (source: Raymond Chen)
+        // HACK: Apply the STARTUPINFO show command manually if available
+        STARTUPINFOW si = { sizeof(si) };
+        GetStartupInfoW(&si);
+        if (si.dwFlags & STARTF_USESHOWWINDOW)
+            showCommand = si.wShowWindow;
+
+        window->win32.showDefault = GLFW_FALSE;
+    }
+
+    ShowWindow(window->win32.handle, showCommand);
+}
+
+void _glfwHideWindowWin32(_GLFWwindow* window)
+{
+    ShowWindow(window->win32.handle, SW_HIDE);
+}
+
+void _glfwRequestWindowAttentionWin32(_GLFWwindow* window)
+{
+    FlashWindow(window->win32.handle, TRUE);
+}
+
+void _glfwFocusWindowWin32(_GLFWwindow* window)
+{
+    BringWindowToTop(window->win32.handle);
+    SetForegroundWindow(window->win32.handle);
+    SetFocus(window->win32.handle);
+}
+
+void _glfwSetWindowMonitorWin32(_GLFWwindow* window,
+                                _GLFWmonitor* monitor,
+                                int xpos, int ypos,
+                                int width, int height,
+                                int refreshRate)
+{
+    if (window->monitor == monitor)
+    {
+        if (monitor)
+        {
+            if (monitor->window == window)
+            {
+                acquireMonitor(window);
+                fitToMonitor(window);
+            }
+        }
+        else
+        {
+            RECT rect = { xpos, ypos, xpos + width, ypos + height };
+
+            if (_glfwIsWindows10Version1607OrGreaterWin32())
+            {
+                AdjustWindowRectExForDpi(&rect, getWindowStyle(window),
+                                         FALSE, getWindowExStyle(window),
+                                         GetDpiForWindow(window->win32.handle));
+            }
+            else
+            {
+                AdjustWindowRectEx(&rect, getWindowStyle(window),
+                                   FALSE, getWindowExStyle(window));
+            }
+
+            SetWindowPos(window->win32.handle, HWND_TOP,
+                         rect.left, rect.top,
+                         rect.right - rect.left, rect.bottom - rect.top,
+                         SWP_NOCOPYBITS | SWP_NOACTIVATE | SWP_NOZORDER);
+        }
+
+        return;
+    }
+
+    if (window->monitor)
+        releaseMonitor(window);
+
+    _glfwInputWindowMonitor(window, monitor);
+
+    if (window->monitor)
+    {
+        MONITORINFO mi = { sizeof(mi) };
+        UINT flags = SWP_SHOWWINDOW | SWP_NOACTIVATE | SWP_NOCOPYBITS;
+
+        if (window->decorated)
+        {
+            DWORD style = GetWindowLongW(window->win32.handle, GWL_STYLE);
+            style &= ~WS_OVERLAPPEDWINDOW;
+            style |= getWindowStyle(window);
+            SetWindowLongW(window->win32.handle, GWL_STYLE, style);
+            flags |= SWP_FRAMECHANGED;
+        }
+
+        acquireMonitor(window);
+
+        GetMonitorInfoW(window->monitor->win32.handle, &mi);
+        SetWindowPos(window->win32.handle, HWND_TOPMOST,
+                     mi.rcMonitor.left,
+                     mi.rcMonitor.top,
+                     mi.rcMonitor.right - mi.rcMonitor.left,
+                     mi.rcMonitor.bottom - mi.rcMonitor.top,
+                     flags);
+    }
+    else
+    {
+        HWND after;
+        RECT rect = { xpos, ypos, xpos + width, ypos + height };
+        DWORD style = GetWindowLongW(window->win32.handle, GWL_STYLE);
+        UINT flags = SWP_NOACTIVATE | SWP_NOCOPYBITS;
+
+        if (window->decorated)
+        {
+            style &= ~WS_POPUP;
+            style |= getWindowStyle(window);
+            SetWindowLongW(window->win32.handle, GWL_STYLE, style);
+
+            flags |= SWP_FRAMECHANGED;
+        }
+
+        if (window->floating)
+            after = HWND_TOPMOST;
+        else
+            after = HWND_NOTOPMOST;
+
+        if (_glfwIsWindows10Version1607OrGreaterWin32())
+        {
+            AdjustWindowRectExForDpi(&rect, getWindowStyle(window),
+                                     FALSE, getWindowExStyle(window),
+                                     GetDpiForWindow(window->win32.handle));
+        }
+        else
+        {
+            AdjustWindowRectEx(&rect, getWindowStyle(window),
+                               FALSE, getWindowExStyle(window));
+        }
+
+        SetWindowPos(window->win32.handle, after,
+                     rect.left, rect.top,
+                     rect.right - rect.left, rect.bottom - rect.top,
+                     flags);
+    }
+}
+
+GLFWbool _glfwWindowFocusedWin32(_GLFWwindow* window)
+{
+    return window->win32.handle == GetActiveWindow();
+}
+
+GLFWbool _glfwWindowIconifiedWin32(_GLFWwindow* window)
+{
+    return IsIconic(window->win32.handle);
+}
+
+GLFWbool _glfwWindowVisibleWin32(_GLFWwindow* window)
+{
+    return IsWindowVisible(window->win32.handle);
+}
+
+GLFWbool _glfwWindowMaximizedWin32(_GLFWwindow* window)
+{
+    return IsZoomed(window->win32.handle);
+}
+
+GLFWbool _glfwWindowHoveredWin32(_GLFWwindow* window)
+{
+    return cursorInContentArea(window);
+}
+
+GLFWbool _glfwFramebufferTransparentWin32(_GLFWwindow* window)
+{
+    BOOL composition, opaque;
+    DWORD color;
+
+    if (!window->win32.transparent)
+        return GLFW_FALSE;
+
+    if (!IsWindowsVistaOrGreater())
+        return GLFW_FALSE;
+
+    if (FAILED(DwmIsCompositionEnabled(&composition)) || !composition)
+        return GLFW_FALSE;
+
+    if (!IsWindows8OrGreater())
+    {
+        // HACK: Disable framebuffer transparency on Windows 7 when the
+        //       colorization color is opaque, because otherwise the window
+        //       contents is blended additively with the previous frame instead
+        //       of replacing it
+        if (FAILED(DwmGetColorizationColor(&color, &opaque)) || opaque)
+            return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwSetWindowResizableWin32(_GLFWwindow* window, GLFWbool enabled)
+{
+    updateWindowStyles(window);
+}
+
+void _glfwSetWindowDecoratedWin32(_GLFWwindow* window, GLFWbool enabled)
+{
+    updateWindowStyles(window);
+}
+
+void _glfwSetWindowFloatingWin32(_GLFWwindow* window, GLFWbool enabled)
+{
+    const HWND after = enabled ? HWND_TOPMOST : HWND_NOTOPMOST;
+    SetWindowPos(window->win32.handle, after, 0, 0, 0, 0,
+                 SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
+}
+
+void _glfwSetWindowMousePassthroughWin32(_GLFWwindow* window, GLFWbool enabled)
+{
+    COLORREF key = 0;
+    BYTE alpha = 0;
+    DWORD flags = 0;
+    DWORD exStyle = GetWindowLongW(window->win32.handle, GWL_EXSTYLE);
+
+    if (exStyle & WS_EX_LAYERED)
+        GetLayeredWindowAttributes(window->win32.handle, &key, &alpha, &flags);
+
+    if (enabled)
+        exStyle |= (WS_EX_TRANSPARENT | WS_EX_LAYERED);
+    else
+    {
+        exStyle &= ~WS_EX_TRANSPARENT;
+        // NOTE: Window opacity also needs the layered window style so do not
+        //       remove it if the window is alpha blended
+        if (exStyle & WS_EX_LAYERED)
+        {
+            if (!(flags & LWA_ALPHA))
+                exStyle &= ~WS_EX_LAYERED;
+        }
+    }
+
+    SetWindowLongW(window->win32.handle, GWL_EXSTYLE, exStyle);
+
+    if (enabled)
+        SetLayeredWindowAttributes(window->win32.handle, key, alpha, flags);
+}
+
+float _glfwGetWindowOpacityWin32(_GLFWwindow* window)
+{
+    BYTE alpha;
+    DWORD flags;
+
+    if ((GetWindowLongW(window->win32.handle, GWL_EXSTYLE) & WS_EX_LAYERED) &&
+        GetLayeredWindowAttributes(window->win32.handle, NULL, &alpha, &flags))
+    {
+        if (flags & LWA_ALPHA)
+            return alpha / 255.f;
+    }
+
+    return 1.f;
+}
+
+void _glfwSetWindowOpacityWin32(_GLFWwindow* window, float opacity)
+{
+    LONG exStyle = GetWindowLongW(window->win32.handle, GWL_EXSTYLE);
+    if (opacity < 1.f || (exStyle & WS_EX_TRANSPARENT))
+    {
+        const BYTE alpha = (BYTE) (255 * opacity);
+        exStyle |= WS_EX_LAYERED;
+        SetWindowLongW(window->win32.handle, GWL_EXSTYLE, exStyle);
+        SetLayeredWindowAttributes(window->win32.handle, 0, alpha, LWA_ALPHA);
+    }
+    else if (exStyle & WS_EX_TRANSPARENT)
+    {
+        SetLayeredWindowAttributes(window->win32.handle, 0, 0, 0);
+    }
+    else
+    {
+        exStyle &= ~WS_EX_LAYERED;
+        SetWindowLongW(window->win32.handle, GWL_EXSTYLE, exStyle);
+    }
+}
+
+void _glfwSetRawMouseMotionWin32(_GLFWwindow *window, GLFWbool enabled)
+{
+    if (_glfw.win32.disabledCursorWindow != window)
+        return;
+
+    if (enabled)
+        enableRawMouseMotion(window);
+    else
+        disableRawMouseMotion(window);
+}
+
+GLFWbool _glfwRawMouseMotionSupportedWin32(void)
+{
+    return GLFW_TRUE;
+}
+
+void _glfwPollEventsWin32(void)
+{
+    MSG msg;
+    HWND handle;
+    _GLFWwindow* window;
+
+    while (PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE))
+    {
+        if (msg.message == WM_QUIT)
+        {
+            // NOTE: While GLFW does not itself post WM_QUIT, other processes
+            //       may post it to this one, for example Task Manager
+            // HACK: Treat WM_QUIT as a close on all windows
+
+            window = _glfw.windowListHead;
+            while (window)
+            {
+                _glfwInputWindowCloseRequest(window);
+                window = window->next;
+            }
+        }
+        else
+        {
+            TranslateMessage(&msg);
+            DispatchMessageW(&msg);
+        }
+    }
+
+    // HACK: Release modifier keys that the system did not emit KEYUP for
+    // NOTE: Shift keys on Windows tend to "stick" when both are pressed as
+    //       no key up message is generated by the first key release
+    // NOTE: Windows key is not reported as released by the Win+V hotkey
+    //       Other Win hotkeys are handled implicitly by _glfwInputWindowFocus
+    //       because they change the input focus
+    // NOTE: The other half of this is in the WM_*KEY* handler in windowProc
+    handle = GetActiveWindow();
+    if (handle)
+    {
+        window = GetPropW(handle, L"GLFW");
+        if (window)
+        {
+            int i;
+            const int keys[4][2] =
+            {
+                { VK_LSHIFT, GLFW_KEY_LEFT_SHIFT },
+                { VK_RSHIFT, GLFW_KEY_RIGHT_SHIFT },
+                { VK_LWIN, GLFW_KEY_LEFT_SUPER },
+                { VK_RWIN, GLFW_KEY_RIGHT_SUPER }
+            };
+
+            for (i = 0;  i < 4;  i++)
+            {
+                const int vk = keys[i][0];
+                const int key = keys[i][1];
+                const int scancode = _glfw.win32.scancodes[key];
+
+                if ((GetKeyState(vk) & 0x8000))
+                    continue;
+                if (window->keys[key] != GLFW_PRESS)
+                    continue;
+
+                _glfwInputKey(window, key, scancode, GLFW_RELEASE, getKeyMods());
+            }
+        }
+    }
+
+    window = _glfw.win32.disabledCursorWindow;
+    if (window)
+    {
+        int width, height;
+        _glfwGetWindowSizeWin32(window, &width, &height);
+
+        // NOTE: Re-center the cursor only if it has moved since the last call,
+        //       to avoid breaking glfwWaitEvents with WM_MOUSEMOVE
+        // The re-center is required in order to prevent the mouse cursor stopping at the edges of the screen.
+        if (window->win32.lastCursorPosX != width / 2 ||
+            window->win32.lastCursorPosY != height / 2)
+        {
+            _glfwSetCursorPosWin32(window, width / 2, height / 2);
+        }
+    }
+}
+
+void _glfwWaitEventsWin32(void)
+{
+    WaitMessage();
+
+    _glfwPollEventsWin32();
+}
+
+void _glfwWaitEventsTimeoutWin32(double timeout)
+{
+    MsgWaitForMultipleObjects(0, NULL, FALSE, (DWORD) (timeout * 1e3), QS_ALLINPUT);
+
+    _glfwPollEventsWin32();
+}
+
+void _glfwPostEmptyEventWin32(void)
+{
+    PostMessageW(_glfw.win32.helperWindowHandle, WM_NULL, 0, 0);
+}
+
+void _glfwGetCursorPosWin32(_GLFWwindow* window, double* xpos, double* ypos)
+{
+    POINT pos;
+
+    if (GetCursorPos(&pos))
+    {
+        ScreenToClient(window->win32.handle, &pos);
+
+        if (xpos)
+            *xpos = pos.x;
+        if (ypos)
+            *ypos = pos.y;
+    }
+}
+
+void _glfwSetCursorPosWin32(_GLFWwindow* window, double xpos, double ypos)
+{
+    POINT pos = { (int) xpos, (int) ypos };
+
+    // Store the new position so it can be recognized later
+    window->win32.lastCursorPosX = pos.x;
+    window->win32.lastCursorPosY = pos.y;
+
+    ClientToScreen(window->win32.handle, &pos);
+    SetCursorPos(pos.x, pos.y);
+}
+
+void _glfwSetCursorModeWin32(_GLFWwindow* window, int mode)
+{
+    if (_glfwWindowFocusedWin32(window))
+    {
+        if (mode == GLFW_CURSOR_DISABLED)
+        {
+            _glfwGetCursorPosWin32(window,
+                                   &_glfw.win32.restoreCursorPosX,
+                                   &_glfw.win32.restoreCursorPosY);
+            _glfwCenterCursorInContentArea(window);
+            if (window->rawMouseMotion)
+                enableRawMouseMotion(window);
+        }
+        else if (_glfw.win32.disabledCursorWindow == window)
+        {
+            if (window->rawMouseMotion)
+                disableRawMouseMotion(window);
+        }
+
+        if (mode == GLFW_CURSOR_DISABLED || mode == GLFW_CURSOR_CAPTURED)
+            captureCursor(window);
+        else
+            releaseCursor();
+
+        if (mode == GLFW_CURSOR_DISABLED)
+            _glfw.win32.disabledCursorWindow = window;
+        else if (_glfw.win32.disabledCursorWindow == window)
+        {
+            _glfw.win32.disabledCursorWindow = NULL;
+            _glfwSetCursorPosWin32(window,
+                                   _glfw.win32.restoreCursorPosX,
+                                   _glfw.win32.restoreCursorPosY);
+        }
+    }
+
+    if (cursorInContentArea(window))
+        updateCursorImage(window);
+}
+
+const char* _glfwGetScancodeNameWin32(int scancode)
+{
+    if (scancode < 0 || scancode > (KF_EXTENDED | 0xff))
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Invalid scancode %i", scancode);
+        return NULL;
+    }
+
+    const int key = _glfw.win32.keycodes[scancode];
+    if (key == GLFW_KEY_UNKNOWN)
+        return NULL;
+
+    return _glfw.win32.keynames[key];
+}
+
+int _glfwGetKeyScancodeWin32(int key)
+{
+    return _glfw.win32.scancodes[key];
+}
+
+GLFWbool _glfwCreateCursorWin32(_GLFWcursor* cursor,
+                                const GLFWimage* image,
+                                int xhot, int yhot)
+{
+    cursor->win32.handle = (HCURSOR) createIcon(image, xhot, yhot, GLFW_FALSE);
+    if (!cursor->win32.handle)
+        return GLFW_FALSE;
+
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwCreateStandardCursorWin32(_GLFWcursor* cursor, int shape)
+{
+    int id = 0;
+
+    switch (shape)
+    {
+        case GLFW_ARROW_CURSOR:
+            id = OCR_NORMAL;
+            break;
+        case GLFW_IBEAM_CURSOR:
+            id = OCR_IBEAM;
+            break;
+        case GLFW_CROSSHAIR_CURSOR:
+            id = OCR_CROSS;
+            break;
+        case GLFW_POINTING_HAND_CURSOR:
+            id = OCR_HAND;
+            break;
+        case GLFW_RESIZE_EW_CURSOR:
+            id = OCR_SIZEWE;
+            break;
+        case GLFW_RESIZE_NS_CURSOR:
+            id = OCR_SIZENS;
+            break;
+        case GLFW_RESIZE_NWSE_CURSOR:
+            id = OCR_SIZENWSE;
+            break;
+        case GLFW_RESIZE_NESW_CURSOR:
+            id = OCR_SIZENESW;
+            break;
+        case GLFW_RESIZE_ALL_CURSOR:
+            id = OCR_SIZEALL;
+            break;
+        case GLFW_NOT_ALLOWED_CURSOR:
+            id = OCR_NO;
+            break;
+        default:
+            _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Unknown standard cursor");
+            return GLFW_FALSE;
+    }
+
+    cursor->win32.handle = LoadImageW(NULL,
+                                      MAKEINTRESOURCEW(id), IMAGE_CURSOR, 0, 0,
+                                      LR_DEFAULTSIZE | LR_SHARED);
+    if (!cursor->win32.handle)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to create standard cursor");
+        return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwDestroyCursorWin32(_GLFWcursor* cursor)
+{
+    if (cursor->win32.handle)
+        DestroyIcon((HICON) cursor->win32.handle);
+}
+
+void _glfwSetCursorWin32(_GLFWwindow* window, _GLFWcursor* cursor)
+{
+    if (cursorInContentArea(window))
+        updateCursorImage(window);
+}
+
+void _glfwSetClipboardStringWin32(const char* string)
+{
+    int characterCount, tries = 0;
+    HANDLE object;
+    WCHAR* buffer;
+
+    characterCount = MultiByteToWideChar(CP_UTF8, 0, string, -1, NULL, 0);
+    if (!characterCount)
+        return;
+
+    object = GlobalAlloc(GMEM_MOVEABLE, characterCount * sizeof(WCHAR));
+    if (!object)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to allocate global handle for clipboard");
+        return;
+    }
+
+    buffer = GlobalLock(object);
+    if (!buffer)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to lock global handle");
+        GlobalFree(object);
+        return;
+    }
+
+    MultiByteToWideChar(CP_UTF8, 0, string, -1, buffer, characterCount);
+    GlobalUnlock(object);
+
+    // NOTE: Retry clipboard opening a few times as some other application may have it
+    //       open and also the Windows Clipboard History reads it after each update
+    while (!OpenClipboard(_glfw.win32.helperWindowHandle))
+    {
+        Sleep(1);
+        tries++;
+
+        if (tries == 3)
+        {
+            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                 "Win32: Failed to open clipboard");
+            GlobalFree(object);
+            return;
+        }
+    }
+
+    EmptyClipboard();
+    SetClipboardData(CF_UNICODETEXT, object);
+    CloseClipboard();
+}
+
+const char* _glfwGetClipboardStringWin32(void)
+{
+    HANDLE object;
+    WCHAR* buffer;
+    int tries = 0;
+
+    // NOTE: Retry clipboard opening a few times as some other application may have it
+    //       open and also the Windows Clipboard History reads it after each update
+    while (!OpenClipboard(_glfw.win32.helperWindowHandle))
+    {
+        Sleep(1);
+        tries++;
+
+        if (tries == 3)
+        {
+            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                 "Win32: Failed to open clipboard");
+            return NULL;
+        }
+    }
+
+    object = GetClipboardData(CF_UNICODETEXT);
+    if (!object)
+    {
+        _glfwInputErrorWin32(GLFW_FORMAT_UNAVAILABLE,
+                             "Win32: Failed to convert clipboard to string");
+        CloseClipboard();
+        return NULL;
+    }
+
+    buffer = GlobalLock(object);
+    if (!buffer)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to lock global handle");
+        CloseClipboard();
+        return NULL;
+    }
+
+    _glfw_free(_glfw.win32.clipboardString);
+    _glfw.win32.clipboardString = _glfwCreateUTF8FromWideStringWin32(buffer);
+
+    GlobalUnlock(object);
+    CloseClipboard();
+
+    return _glfw.win32.clipboardString;
+}
+
+EGLenum _glfwGetEGLPlatformWin32(EGLint** attribs)
+{
+    if (_glfw.egl.ANGLE_platform_angle)
+    {
+        int type = 0;
+
+        if (_glfw.egl.ANGLE_platform_angle_opengl)
+        {
+            if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_OPENGL)
+                type = EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE;
+            else if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_OPENGLES)
+                type = EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE;
+        }
+
+        if (_glfw.egl.ANGLE_platform_angle_d3d)
+        {
+            if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_D3D9)
+                type = EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE;
+            else if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_D3D11)
+                type = EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE;
+        }
+
+        if (_glfw.egl.ANGLE_platform_angle_vulkan)
+        {
+            if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_VULKAN)
+                type = EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE;
+        }
+
+        if (type)
+        {
+            *attribs = _glfw_calloc(3, sizeof(EGLint));
+            (*attribs)[0] = EGL_PLATFORM_ANGLE_TYPE_ANGLE;
+            (*attribs)[1] = type;
+            (*attribs)[2] = EGL_NONE;
+            return EGL_PLATFORM_ANGLE_ANGLE;
+        }
+    }
+
+    return 0;
+}
+
+EGLNativeDisplayType _glfwGetEGLNativeDisplayWin32(void)
+{
+    return GetDC(_glfw.win32.helperWindowHandle);
+}
+
+EGLNativeWindowType _glfwGetEGLNativeWindowWin32(_GLFWwindow* window)
+{
+    return window->win32.handle;
+}
+
+void _glfwGetRequiredInstanceExtensionsWin32(char** extensions)
+{
+    if (!_glfw.vk.KHR_surface || !_glfw.vk.KHR_win32_surface)
+        return;
+
+    extensions[0] = "VK_KHR_surface";
+    extensions[1] = "VK_KHR_win32_surface";
+}
+
+GLFWbool _glfwGetPhysicalDevicePresentationSupportWin32(VkInstance instance,
+                                                        VkPhysicalDevice device,
+                                                        uint32_t queuefamily)
+{
+    PFN_vkGetPhysicalDeviceWin32PresentationSupportKHR
+        vkGetPhysicalDeviceWin32PresentationSupportKHR =
+        (PFN_vkGetPhysicalDeviceWin32PresentationSupportKHR)
+        vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceWin32PresentationSupportKHR");
+    if (!vkGetPhysicalDeviceWin32PresentationSupportKHR)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Win32: Vulkan instance missing VK_KHR_win32_surface extension");
+        return GLFW_FALSE;
+    }
+
+    return vkGetPhysicalDeviceWin32PresentationSupportKHR(device, queuefamily);
+}
+
+VkResult _glfwCreateWindowSurfaceWin32(VkInstance instance,
+                                       _GLFWwindow* window,
+                                       const VkAllocationCallbacks* allocator,
+                                       VkSurfaceKHR* surface)
+{
+    VkResult err;
+    VkWin32SurfaceCreateInfoKHR sci;
+    PFN_vkCreateWin32SurfaceKHR vkCreateWin32SurfaceKHR;
+
+    vkCreateWin32SurfaceKHR = (PFN_vkCreateWin32SurfaceKHR)
+        vkGetInstanceProcAddr(instance, "vkCreateWin32SurfaceKHR");
+    if (!vkCreateWin32SurfaceKHR)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Win32: Vulkan instance missing VK_KHR_win32_surface extension");
+        return VK_ERROR_EXTENSION_NOT_PRESENT;
+    }
+
+    memset(&sci, 0, sizeof(sci));
+    sci.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR;
+    sci.hinstance = _glfw.win32.instance;
+    sci.hwnd = window->win32.handle;
+
+    err = vkCreateWin32SurfaceKHR(instance, &sci, allocator, surface);
+    if (err)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to create Vulkan surface: %s",
+                        _glfwGetVulkanResultString(err));
+    }
+
+    return err;
+}
+
+GLFWAPI HWND glfwGetWin32Window(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_WIN32)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE,
+                        "Win32: Platform not initialized");
+        return NULL;
+    }
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    return window->win32.handle;
+}
+
+#endif // _GLFW_WIN32
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/window.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/window.c
new file mode 100644
index 000000000000..e03121a46da1
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/window.c
@@ -0,0 +1,1200 @@
+//========================================================================
+// GLFW 3.5 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+// Copyright (c) 2012 Torsten Walluhn <tw@mad-cad.net>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+#include <float.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                         GLFW event API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+// Notifies shared code that a window has lost or received input focus
+//
+void _glfwInputWindowFocus(_GLFWwindow* window, GLFWbool focused)
+{
+    assert(window != NULL);
+    assert(focused == GLFW_TRUE || focused == GLFW_FALSE);
+
+    if (window->callbacks.focus)
+        window->callbacks.focus((GLFWwindow*) window, focused);
+
+    if (!focused)
+    {
+        int key, button;
+
+        for (key = 0;  key <= GLFW_KEY_LAST;  key++)
+        {
+            if (window->keys[key] == GLFW_PRESS)
+            {
+                const int scancode = _glfw.platform.getKeyScancode(key);
+                _glfwInputKey(window, key, scancode, GLFW_RELEASE, 0);
+            }
+        }
+
+        for (button = 0;  button <= GLFW_MOUSE_BUTTON_LAST;  button++)
+        {
+            if (window->mouseButtons[button] == GLFW_PRESS)
+                _glfwInputMouseClick(window, button, GLFW_RELEASE, 0);
+        }
+    }
+}
+
+// Notifies shared code that a window has moved
+// The position is specified in content area relative screen coordinates
+//
+void _glfwInputWindowPos(_GLFWwindow* window, int x, int y)
+{
+    assert(window != NULL);
+
+    if (window->callbacks.pos)
+        window->callbacks.pos((GLFWwindow*) window, x, y);
+}
+
+// Notifies shared code that a window has been resized
+// The size is specified in screen coordinates
+//
+void _glfwInputWindowSize(_GLFWwindow* window, int width, int height)
+{
+    assert(window != NULL);
+    assert(width >= 0);
+    assert(height >= 0);
+
+    if (window->callbacks.size)
+        window->callbacks.size((GLFWwindow*) window, width, height);
+}
+
+// Notifies shared code that a window has been iconified or restored
+//
+void _glfwInputWindowIconify(_GLFWwindow* window, GLFWbool iconified)
+{
+    assert(window != NULL);
+    assert(iconified == GLFW_TRUE || iconified == GLFW_FALSE);
+
+    if (window->callbacks.iconify)
+        window->callbacks.iconify((GLFWwindow*) window, iconified);
+}
+
+// Notifies shared code that a window has been maximized or restored
+//
+void _glfwInputWindowMaximize(_GLFWwindow* window, GLFWbool maximized)
+{
+    assert(window != NULL);
+    assert(maximized == GLFW_TRUE || maximized == GLFW_FALSE);
+
+    if (window->callbacks.maximize)
+        window->callbacks.maximize((GLFWwindow*) window, maximized);
+}
+
+// Notifies shared code that a window framebuffer has been resized
+// The size is specified in pixels
+//
+void _glfwInputFramebufferSize(_GLFWwindow* window, int width, int height)
+{
+    assert(window != NULL);
+    assert(width >= 0);
+    assert(height >= 0);
+
+    if (window->callbacks.fbsize)
+        window->callbacks.fbsize((GLFWwindow*) window, width, height);
+}
+
+// Notifies shared code that a window content scale has changed
+// The scale is specified as the ratio between the current and default DPI
+//
+void _glfwInputWindowContentScale(_GLFWwindow* window, float xscale, float yscale)
+{
+    assert(window != NULL);
+    assert(xscale > 0.f);
+    assert(xscale < FLT_MAX);
+    assert(yscale > 0.f);
+    assert(yscale < FLT_MAX);
+
+    if (window->callbacks.scale)
+        window->callbacks.scale((GLFWwindow*) window, xscale, yscale);
+}
+
+// Notifies shared code that the window contents needs updating
+//
+void _glfwInputWindowDamage(_GLFWwindow* window)
+{
+    assert(window != NULL);
+
+    if (window->callbacks.refresh)
+        window->callbacks.refresh((GLFWwindow*) window);
+}
+
+// Notifies shared code that the user wishes to close a window
+//
+void _glfwInputWindowCloseRequest(_GLFWwindow* window)
+{
+    assert(window != NULL);
+
+    window->shouldClose = GLFW_TRUE;
+
+    if (window->callbacks.close)
+        window->callbacks.close((GLFWwindow*) window);
+}
+
+// Notifies shared code that a window has changed its desired monitor
+//
+void _glfwInputWindowMonitor(_GLFWwindow* window, _GLFWmonitor* monitor)
+{
+    assert(window != NULL);
+    window->monitor = monitor;
+}
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW public API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI GLFWwindow* glfwCreateWindow(int width, int height,
+                                     const char* title,
+                                     GLFWmonitor* monitor,
+                                     GLFWwindow* share)
+{
+    _GLFWfbconfig fbconfig;
+    _GLFWctxconfig ctxconfig;
+    _GLFWwndconfig wndconfig;
+    _GLFWwindow* window;
+
+    assert(title != NULL);
+    assert(width >= 0);
+    assert(height >= 0);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (width <= 0 || height <= 0)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE,
+                        "Invalid window size %ix%i",
+                        width, height);
+
+        return NULL;
+    }
+
+    fbconfig  = _glfw.hints.framebuffer;
+    ctxconfig = _glfw.hints.context;
+    wndconfig = _glfw.hints.window;
+
+    wndconfig.width   = width;
+    wndconfig.height  = height;
+    wndconfig.title   = title;
+    ctxconfig.share   = (_GLFWwindow*) share;
+
+    if (!_glfwIsValidContextConfig(&ctxconfig))
+        return NULL;
+
+    window = _glfw_calloc(1, sizeof(_GLFWwindow));
+    window->next = _glfw.windowListHead;
+    _glfw.windowListHead = window;
+
+    window->videoMode.width       = width;
+    window->videoMode.height      = height;
+    window->videoMode.redBits     = fbconfig.redBits;
+    window->videoMode.greenBits   = fbconfig.greenBits;
+    window->videoMode.blueBits    = fbconfig.blueBits;
+    window->videoMode.refreshRate = _glfw.hints.refreshRate;
+
+    window->monitor          = (_GLFWmonitor*) monitor;
+    window->resizable        = wndconfig.resizable;
+    window->decorated        = wndconfig.decorated;
+    window->autoIconify      = wndconfig.autoIconify;
+    window->floating         = wndconfig.floating;
+    window->focusOnShow      = wndconfig.focusOnShow;
+    window->mousePassthrough = wndconfig.mousePassthrough;
+    window->cursorMode       = GLFW_CURSOR_NORMAL;
+
+    window->doublebuffer = fbconfig.doublebuffer;
+
+    window->minwidth    = GLFW_DONT_CARE;
+    window->minheight   = GLFW_DONT_CARE;
+    window->maxwidth    = GLFW_DONT_CARE;
+    window->maxheight   = GLFW_DONT_CARE;
+    window->numer       = GLFW_DONT_CARE;
+    window->denom       = GLFW_DONT_CARE;
+    window->title       = _glfw_strdup(title);
+
+    if (!_glfw.platform.createWindow(window, &wndconfig, &ctxconfig, &fbconfig))
+    {
+        glfwDestroyWindow((GLFWwindow*) window);
+        return NULL;
+    }
+
+    return (GLFWwindow*) window;
+}
+
+void glfwDefaultWindowHints(void)
+{
+    _GLFW_REQUIRE_INIT();
+
+    // The default is OpenGL with minimum version 1.0
+    memset(&_glfw.hints.context, 0, sizeof(_glfw.hints.context));
+    _glfw.hints.context.client = GLFW_OPENGL_API;
+    _glfw.hints.context.source = GLFW_NATIVE_CONTEXT_API;
+    _glfw.hints.context.major  = 1;
+    _glfw.hints.context.minor  = 0;
+
+    // The default is a focused, visible, resizable window with decorations
+    memset(&_glfw.hints.window, 0, sizeof(_glfw.hints.window));
+    _glfw.hints.window.resizable    = GLFW_TRUE;
+    _glfw.hints.window.visible      = GLFW_TRUE;
+    _glfw.hints.window.decorated    = GLFW_TRUE;
+    _glfw.hints.window.focused      = GLFW_TRUE;
+    _glfw.hints.window.autoIconify  = GLFW_TRUE;
+    _glfw.hints.window.centerCursor = GLFW_TRUE;
+    _glfw.hints.window.focusOnShow  = GLFW_TRUE;
+    _glfw.hints.window.xpos         = GLFW_ANY_POSITION;
+    _glfw.hints.window.ypos         = GLFW_ANY_POSITION;
+    _glfw.hints.window.scaleFramebuffer = GLFW_TRUE;
+
+    // The default is 24 bits of color, 24 bits of depth and 8 bits of stencil,
+    // double buffered
+    memset(&_glfw.hints.framebuffer, 0, sizeof(_glfw.hints.framebuffer));
+    _glfw.hints.framebuffer.redBits      = 8;
+    _glfw.hints.framebuffer.greenBits    = 8;
+    _glfw.hints.framebuffer.blueBits     = 8;
+    _glfw.hints.framebuffer.alphaBits    = 8;
+    _glfw.hints.framebuffer.depthBits    = 24;
+    _glfw.hints.framebuffer.stencilBits  = 8;
+    _glfw.hints.framebuffer.doublebuffer = GLFW_TRUE;
+
+    // The default is to select the highest available refresh rate
+    _glfw.hints.refreshRate = GLFW_DONT_CARE;
+}
+
+GLFWAPI void glfwWindowHint(int hint, int value)
+{
+    _GLFW_REQUIRE_INIT();
+
+    switch (hint)
+    {
+        case GLFW_RED_BITS:
+            _glfw.hints.framebuffer.redBits = value;
+            return;
+        case GLFW_GREEN_BITS:
+            _glfw.hints.framebuffer.greenBits = value;
+            return;
+        case GLFW_BLUE_BITS:
+            _glfw.hints.framebuffer.blueBits = value;
+            return;
+        case GLFW_ALPHA_BITS:
+            _glfw.hints.framebuffer.alphaBits = value;
+            return;
+        case GLFW_DEPTH_BITS:
+            _glfw.hints.framebuffer.depthBits = value;
+            return;
+        case GLFW_STENCIL_BITS:
+            _glfw.hints.framebuffer.stencilBits = value;
+            return;
+        case GLFW_ACCUM_RED_BITS:
+            _glfw.hints.framebuffer.accumRedBits = value;
+            return;
+        case GLFW_ACCUM_GREEN_BITS:
+            _glfw.hints.framebuffer.accumGreenBits = value;
+            return;
+        case GLFW_ACCUM_BLUE_BITS:
+            _glfw.hints.framebuffer.accumBlueBits = value;
+            return;
+        case GLFW_ACCUM_ALPHA_BITS:
+            _glfw.hints.framebuffer.accumAlphaBits = value;
+            return;
+        case GLFW_AUX_BUFFERS:
+            _glfw.hints.framebuffer.auxBuffers = value;
+            return;
+        case GLFW_STEREO:
+            _glfw.hints.framebuffer.stereo = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_DOUBLEBUFFER:
+            _glfw.hints.framebuffer.doublebuffer = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_TRANSPARENT_FRAMEBUFFER:
+            _glfw.hints.framebuffer.transparent = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_SAMPLES:
+            _glfw.hints.framebuffer.samples = value;
+            return;
+        case GLFW_SRGB_CAPABLE:
+            _glfw.hints.framebuffer.sRGB = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_RESIZABLE:
+            _glfw.hints.window.resizable = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_DECORATED:
+            _glfw.hints.window.decorated = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_FOCUSED:
+            _glfw.hints.window.focused = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_AUTO_ICONIFY:
+            _glfw.hints.window.autoIconify = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_FLOATING:
+            _glfw.hints.window.floating = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_MAXIMIZED:
+            _glfw.hints.window.maximized = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_VISIBLE:
+            _glfw.hints.window.visible = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_POSITION_X:
+            _glfw.hints.window.xpos = value;
+            return;
+        case GLFW_POSITION_Y:
+            _glfw.hints.window.ypos = value;
+            return;
+        case GLFW_WIN32_KEYBOARD_MENU:
+            _glfw.hints.window.win32.keymenu = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_WIN32_SHOWDEFAULT:
+            _glfw.hints.window.win32.showDefault = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_COCOA_GRAPHICS_SWITCHING:
+            _glfw.hints.context.nsgl.offline = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_SCALE_TO_MONITOR:
+            _glfw.hints.window.scaleToMonitor = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_SCALE_FRAMEBUFFER:
+        case GLFW_COCOA_RETINA_FRAMEBUFFER:
+            _glfw.hints.window.scaleFramebuffer = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_CENTER_CURSOR:
+            _glfw.hints.window.centerCursor = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_FOCUS_ON_SHOW:
+            _glfw.hints.window.focusOnShow = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_MOUSE_PASSTHROUGH:
+            _glfw.hints.window.mousePassthrough = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_CLIENT_API:
+            _glfw.hints.context.client = value;
+            return;
+        case GLFW_CONTEXT_CREATION_API:
+            _glfw.hints.context.source = value;
+            return;
+        case GLFW_CONTEXT_VERSION_MAJOR:
+            _glfw.hints.context.major = value;
+            return;
+        case GLFW_CONTEXT_VERSION_MINOR:
+            _glfw.hints.context.minor = value;
+            return;
+        case GLFW_CONTEXT_ROBUSTNESS:
+            _glfw.hints.context.robustness = value;
+            return;
+        case GLFW_OPENGL_FORWARD_COMPAT:
+            _glfw.hints.context.forward = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_CONTEXT_DEBUG:
+            _glfw.hints.context.debug = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_CONTEXT_NO_ERROR:
+            _glfw.hints.context.noerror = value ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        case GLFW_OPENGL_PROFILE:
+            _glfw.hints.context.profile = value;
+            return;
+        case GLFW_CONTEXT_RELEASE_BEHAVIOR:
+            _glfw.hints.context.release = value;
+            return;
+        case GLFW_REFRESH_RATE:
+            _glfw.hints.refreshRate = value;
+            return;
+    }
+
+    _glfwInputError(GLFW_INVALID_ENUM, "Invalid window hint 0x%08X", hint);
+}
+
+GLFWAPI void glfwWindowHintString(int hint, const char* value)
+{
+    assert(value != NULL);
+
+    _GLFW_REQUIRE_INIT();
+
+    switch (hint)
+    {
+        case GLFW_COCOA_FRAME_NAME:
+            strncpy(_glfw.hints.window.ns.frameName, value,
+                    sizeof(_glfw.hints.window.ns.frameName) - 1);
+            return;
+        case GLFW_X11_CLASS_NAME:
+            strncpy(_glfw.hints.window.x11.className, value,
+                    sizeof(_glfw.hints.window.x11.className) - 1);
+            return;
+        case GLFW_X11_INSTANCE_NAME:
+            strncpy(_glfw.hints.window.x11.instanceName, value,
+                    sizeof(_glfw.hints.window.x11.instanceName) - 1);
+            return;
+        case GLFW_WAYLAND_APP_ID:
+            strncpy(_glfw.hints.window.wl.appId, value,
+                    sizeof(_glfw.hints.window.wl.appId) - 1);
+            return;
+    }
+
+    _glfwInputError(GLFW_INVALID_ENUM, "Invalid window hint string 0x%08X", hint);
+}
+
+GLFWAPI void glfwDestroyWindow(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+
+    // Allow closing of NULL (to match the behavior of free)
+    if (window == NULL)
+        return;
+
+    // Clear all callbacks to avoid exposing a half torn-down window object
+    memset(&window->callbacks, 0, sizeof(window->callbacks));
+
+    // The window's context must not be current on another thread when the
+    // window is destroyed
+    if (window == _glfwPlatformGetTls(&_glfw.contextSlot))
+        glfwMakeContextCurrent(NULL);
+
+    _glfw.platform.destroyWindow(window);
+
+    // Unlink window from global linked list
+    {
+        _GLFWwindow** prev = &_glfw.windowListHead;
+
+        while (*prev != window)
+            prev = &((*prev)->next);
+
+        *prev = window->next;
+    }
+
+    _glfw_free(window->title);
+    _glfw_free(window);
+}
+
+GLFWAPI int glfwWindowShouldClose(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(0);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    return window->shouldClose;
+}
+
+GLFWAPI void glfwSetWindowShouldClose(GLFWwindow* handle, int value)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    window->shouldClose = value;
+}
+
+GLFWAPI const char* glfwGetWindowTitle(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    return window->title;
+}
+
+GLFWAPI void glfwSetWindowTitle(GLFWwindow* handle, const char* title)
+{
+    assert(title != NULL);
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    char* prev = window->title;
+    window->title = _glfw_strdup(title);
+
+    _glfw.platform.setWindowTitle(window, title);
+    _glfw_free(prev);
+}
+
+GLFWAPI void glfwSetWindowIcon(GLFWwindow* handle,
+                               int count, const GLFWimage* images)
+{
+    int i;
+
+    assert(count >= 0);
+    assert(count == 0 || images != NULL);
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (count < 0)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Invalid image count for window icon");
+        return;
+    }
+
+    for (i = 0; i < count; i++)
+    {
+        assert(images[i].pixels != NULL);
+
+        if (images[i].width <= 0 || images[i].height <= 0)
+        {
+            _glfwInputError(GLFW_INVALID_VALUE,
+                            "Invalid image dimensions for window icon");
+            return;
+        }
+    }
+
+    _glfw.platform.setWindowIcon(window, count, images);
+}
+
+GLFWAPI void glfwGetWindowPos(GLFWwindow* handle, int* xpos, int* ypos)
+{
+    if (xpos)
+        *xpos = 0;
+    if (ypos)
+        *ypos = 0;
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _glfw.platform.getWindowPos(window, xpos, ypos);
+}
+
+GLFWAPI void glfwSetWindowPos(GLFWwindow* handle, int xpos, int ypos)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->monitor)
+        return;
+
+    _glfw.platform.setWindowPos(window, xpos, ypos);
+}
+
+GLFWAPI void glfwGetWindowSize(GLFWwindow* handle, int* width, int* height)
+{
+    if (width)
+        *width = 0;
+    if (height)
+        *height = 0;
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _glfw.platform.getWindowSize(window, width, height);
+}
+
+GLFWAPI void glfwSetWindowSize(GLFWwindow* handle, int width, int height)
+{
+    assert(width >= 0);
+    assert(height >= 0);
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    window->videoMode.width  = width;
+    window->videoMode.height = height;
+
+    _glfw.platform.setWindowSize(window, width, height);
+}
+
+GLFWAPI void glfwSetWindowSizeLimits(GLFWwindow* handle,
+                                     int minwidth, int minheight,
+                                     int maxwidth, int maxheight)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (minwidth != GLFW_DONT_CARE && minheight != GLFW_DONT_CARE)
+    {
+        if (minwidth < 0 || minheight < 0)
+        {
+            _glfwInputError(GLFW_INVALID_VALUE,
+                            "Invalid window minimum size %ix%i",
+                            minwidth, minheight);
+            return;
+        }
+    }
+
+    if (maxwidth != GLFW_DONT_CARE && maxheight != GLFW_DONT_CARE)
+    {
+        if (maxwidth < 0 || maxheight < 0 ||
+            maxwidth < minwidth || maxheight < minheight)
+        {
+            _glfwInputError(GLFW_INVALID_VALUE,
+                            "Invalid window maximum size %ix%i",
+                            maxwidth, maxheight);
+            return;
+        }
+    }
+
+    window->minwidth  = minwidth;
+    window->minheight = minheight;
+    window->maxwidth  = maxwidth;
+    window->maxheight = maxheight;
+
+    if (window->monitor || !window->resizable)
+        return;
+
+    _glfw.platform.setWindowSizeLimits(window,
+                                       minwidth, minheight,
+                                       maxwidth, maxheight);
+}
+
+GLFWAPI void glfwSetWindowAspectRatio(GLFWwindow* handle, int numer, int denom)
+{
+    assert(numer != 0);
+    assert(denom != 0);
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (numer != GLFW_DONT_CARE && denom != GLFW_DONT_CARE)
+    {
+        if (numer <= 0 || denom <= 0)
+        {
+            _glfwInputError(GLFW_INVALID_VALUE,
+                            "Invalid window aspect ratio %i:%i",
+                            numer, denom);
+            return;
+        }
+    }
+
+    window->numer = numer;
+    window->denom = denom;
+
+    if (window->monitor || !window->resizable)
+        return;
+
+    _glfw.platform.setWindowAspectRatio(window, numer, denom);
+}
+
+GLFWAPI void glfwGetFramebufferSize(GLFWwindow* handle, int* width, int* height)
+{
+    if (width)
+        *width = 0;
+    if (height)
+        *height = 0;
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _glfw.platform.getFramebufferSize(window, width, height);
+}
+
+GLFWAPI void glfwGetWindowFrameSize(GLFWwindow* handle,
+                                    int* left, int* top,
+                                    int* right, int* bottom)
+{
+    if (left)
+        *left = 0;
+    if (top)
+        *top = 0;
+    if (right)
+        *right = 0;
+    if (bottom)
+        *bottom = 0;
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _glfw.platform.getWindowFrameSize(window, left, top, right, bottom);
+}
+
+GLFWAPI void glfwGetWindowContentScale(GLFWwindow* handle,
+                                       float* xscale, float* yscale)
+{
+    if (xscale)
+        *xscale = 0.f;
+    if (yscale)
+        *yscale = 0.f;
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _glfw.platform.getWindowContentScale(window, xscale, yscale);
+}
+
+GLFWAPI float glfwGetWindowOpacity(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(0.f);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    return _glfw.platform.getWindowOpacity(window);
+}
+
+GLFWAPI void glfwSetWindowOpacity(GLFWwindow* handle, float opacity)
+{
+    assert(opacity == opacity);
+    assert(opacity >= 0.f);
+    assert(opacity <= 1.f);
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (opacity != opacity || opacity < 0.f || opacity > 1.f)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Invalid window opacity %f", opacity);
+        return;
+    }
+
+    _glfw.platform.setWindowOpacity(window, opacity);
+}
+
+GLFWAPI void glfwIconifyWindow(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _glfw.platform.iconifyWindow(window);
+}
+
+GLFWAPI void glfwRestoreWindow(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _glfw.platform.restoreWindow(window);
+}
+
+GLFWAPI void glfwMaximizeWindow(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->monitor)
+        return;
+
+    _glfw.platform.maximizeWindow(window);
+}
+
+GLFWAPI void glfwShowWindow(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->monitor)
+        return;
+
+    _glfw.platform.showWindow(window);
+
+    if (window->focusOnShow)
+        _glfw.platform.focusWindow(window);
+}
+
+GLFWAPI void glfwRequestWindowAttention(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _glfw.platform.requestWindowAttention(window);
+}
+
+GLFWAPI void glfwHideWindow(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    if (window->monitor)
+        return;
+
+    _glfw.platform.hideWindow(window);
+}
+
+GLFWAPI void glfwFocusWindow(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _glfw.platform.focusWindow(window);
+}
+
+GLFWAPI int glfwGetWindowAttrib(GLFWwindow* handle, int attrib)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(0);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    switch (attrib)
+    {
+        case GLFW_FOCUSED:
+            return _glfw.platform.windowFocused(window);
+        case GLFW_ICONIFIED:
+            return _glfw.platform.windowIconified(window);
+        case GLFW_VISIBLE:
+            return _glfw.platform.windowVisible(window);
+        case GLFW_MAXIMIZED:
+            return _glfw.platform.windowMaximized(window);
+        case GLFW_HOVERED:
+            return _glfw.platform.windowHovered(window);
+        case GLFW_FOCUS_ON_SHOW:
+            return window->focusOnShow;
+        case GLFW_MOUSE_PASSTHROUGH:
+            return window->mousePassthrough;
+        case GLFW_TRANSPARENT_FRAMEBUFFER:
+            return _glfw.platform.framebufferTransparent(window);
+        case GLFW_RESIZABLE:
+            return window->resizable;
+        case GLFW_DECORATED:
+            return window->decorated;
+        case GLFW_FLOATING:
+            return window->floating;
+        case GLFW_AUTO_ICONIFY:
+            return window->autoIconify;
+        case GLFW_DOUBLEBUFFER:
+            return window->doublebuffer;
+        case GLFW_CLIENT_API:
+            return window->context.client;
+        case GLFW_CONTEXT_CREATION_API:
+            return window->context.source;
+        case GLFW_CONTEXT_VERSION_MAJOR:
+            return window->context.major;
+        case GLFW_CONTEXT_VERSION_MINOR:
+            return window->context.minor;
+        case GLFW_CONTEXT_REVISION:
+            return window->context.revision;
+        case GLFW_CONTEXT_ROBUSTNESS:
+            return window->context.robustness;
+        case GLFW_OPENGL_FORWARD_COMPAT:
+            return window->context.forward;
+        case GLFW_CONTEXT_DEBUG:
+            return window->context.debug;
+        case GLFW_OPENGL_PROFILE:
+            return window->context.profile;
+        case GLFW_CONTEXT_RELEASE_BEHAVIOR:
+            return window->context.release;
+        case GLFW_CONTEXT_NO_ERROR:
+            return window->context.noerror;
+    }
+
+    _glfwInputError(GLFW_INVALID_ENUM, "Invalid window attribute 0x%08X", attrib);
+    return 0;
+}
+
+GLFWAPI void glfwSetWindowAttrib(GLFWwindow* handle, int attrib, int value)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    value = value ? GLFW_TRUE : GLFW_FALSE;
+
+    switch (attrib)
+    {
+        case GLFW_AUTO_ICONIFY:
+            window->autoIconify = value;
+            return;
+
+        case GLFW_RESIZABLE:
+            window->resizable = value;
+            if (!window->monitor)
+                _glfw.platform.setWindowResizable(window, value);
+            return;
+
+        case GLFW_DECORATED:
+            window->decorated = value;
+            if (!window->monitor)
+                _glfw.platform.setWindowDecorated(window, value);
+            return;
+
+        case GLFW_FLOATING:
+            window->floating = value;
+            if (!window->monitor)
+                _glfw.platform.setWindowFloating(window, value);
+            return;
+
+        case GLFW_FOCUS_ON_SHOW:
+            window->focusOnShow = value;
+            return;
+
+        case GLFW_MOUSE_PASSTHROUGH:
+            window->mousePassthrough = value;
+            _glfw.platform.setWindowMousePassthrough(window, value);
+            return;
+    }
+
+    _glfwInputError(GLFW_INVALID_ENUM, "Invalid window attribute 0x%08X", attrib);
+}
+
+GLFWAPI GLFWmonitor* glfwGetWindowMonitor(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    return (GLFWmonitor*) window->monitor;
+}
+
+GLFWAPI void glfwSetWindowMonitor(GLFWwindow* wh,
+                                  GLFWmonitor* mh,
+                                  int xpos, int ypos,
+                                  int width, int height,
+                                  int refreshRate)
+{
+    assert(width >= 0);
+    assert(height >= 0);
+
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) wh;
+    _GLFWmonitor* monitor = (_GLFWmonitor*) mh;
+    assert(window != NULL);
+
+    if (width <= 0 || height <= 0)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE,
+                        "Invalid window size %ix%i",
+                        width, height);
+        return;
+    }
+
+    if (refreshRate < 0 && refreshRate != GLFW_DONT_CARE)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE,
+                        "Invalid refresh rate %i",
+                        refreshRate);
+        return;
+    }
+
+    window->videoMode.width       = width;
+    window->videoMode.height      = height;
+    window->videoMode.refreshRate = refreshRate;
+
+    _glfw.platform.setWindowMonitor(window, monitor,
+                                    xpos, ypos, width, height,
+                                    refreshRate);
+}
+
+GLFWAPI void glfwSetWindowUserPointer(GLFWwindow* handle, void* pointer)
+{
+    _GLFW_REQUIRE_INIT();
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    window->userPointer = pointer;
+}
+
+GLFWAPI void* glfwGetWindowUserPointer(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    return window->userPointer;
+}
+
+GLFWAPI GLFWwindowposfun glfwSetWindowPosCallback(GLFWwindow* handle,
+                                                  GLFWwindowposfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWwindowposfun, window->callbacks.pos, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWwindowsizefun glfwSetWindowSizeCallback(GLFWwindow* handle,
+                                                    GLFWwindowsizefun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWwindowsizefun, window->callbacks.size, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWwindowclosefun glfwSetWindowCloseCallback(GLFWwindow* handle,
+                                                      GLFWwindowclosefun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWwindowclosefun, window->callbacks.close, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWwindowrefreshfun glfwSetWindowRefreshCallback(GLFWwindow* handle,
+                                                          GLFWwindowrefreshfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWwindowrefreshfun, window->callbacks.refresh, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWwindowfocusfun glfwSetWindowFocusCallback(GLFWwindow* handle,
+                                                      GLFWwindowfocusfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWwindowfocusfun, window->callbacks.focus, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWwindowiconifyfun glfwSetWindowIconifyCallback(GLFWwindow* handle,
+                                                          GLFWwindowiconifyfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWwindowiconifyfun, window->callbacks.iconify, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWwindowmaximizefun glfwSetWindowMaximizeCallback(GLFWwindow* handle,
+                                                            GLFWwindowmaximizefun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWwindowmaximizefun, window->callbacks.maximize, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWframebuffersizefun glfwSetFramebufferSizeCallback(GLFWwindow* handle,
+                                                              GLFWframebuffersizefun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWframebuffersizefun, window->callbacks.fbsize, cbfun);
+    return cbfun;
+}
+
+GLFWAPI GLFWwindowcontentscalefun glfwSetWindowContentScaleCallback(GLFWwindow* handle,
+                                                                    GLFWwindowcontentscalefun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_SWAP(GLFWwindowcontentscalefun, window->callbacks.scale, cbfun);
+    return cbfun;
+}
+
+GLFWAPI void glfwPollEvents(void)
+{
+    _GLFW_REQUIRE_INIT();
+    _glfw.platform.pollEvents();
+}
+
+GLFWAPI void glfwWaitEvents(void)
+{
+    _GLFW_REQUIRE_INIT();
+    _glfw.platform.waitEvents();
+}
+
+GLFWAPI void glfwWaitEventsTimeout(double timeout)
+{
+    _GLFW_REQUIRE_INIT();
+    assert(timeout == timeout);
+    assert(timeout >= 0.0);
+    assert(timeout <= DBL_MAX);
+
+    if (timeout != timeout || timeout < 0.0 || timeout > DBL_MAX)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Invalid time %f", timeout);
+        return;
+    }
+
+    _glfw.platform.waitEventsTimeout(timeout);
+}
+
+GLFWAPI void glfwPostEmptyEvent(void)
+{
+    _GLFW_REQUIRE_INIT();
+    _glfw.platform.postEmptyEvent();
+}
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wl_init.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wl_init.c
new file mode 100644
index 000000000000..76054bc6af54
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wl_init.c
@@ -0,0 +1,1004 @@
+//========================================================================
+// GLFW 3.5 Wayland - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_WAYLAND)
+
+#include <errno.h>
+#include <limits.h>
+#include <linux/input.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/timerfd.h>
+#include <unistd.h>
+#include <time.h>
+#include <assert.h>
+
+#include "wayland-client-protocol.h"
+#include "xdg-shell-client-protocol.h"
+#include "xdg-decoration-unstable-v1-client-protocol.h"
+#include "viewporter-client-protocol.h"
+#include "relative-pointer-unstable-v1-client-protocol.h"
+#include "pointer-constraints-unstable-v1-client-protocol.h"
+#include "fractional-scale-v1-client-protocol.h"
+#include "xdg-activation-v1-client-protocol.h"
+#include "idle-inhibit-unstable-v1-client-protocol.h"
+
+// NOTE: Versions of wayland-scanner prior to 1.17.91 named every global array of
+//       wl_interface pointers 'types', making it impossible to combine several unmodified
+//       private-code files into a single compilation unit
+// HACK: We override this name with a macro for each file, allowing them to coexist
+
+#define types _glfw_wayland_types
+#include "wayland-client-protocol-code.h"
+#undef types
+
+#define types _glfw_xdg_shell_types
+#include "xdg-shell-client-protocol-code.h"
+#undef types
+
+#define types _glfw_xdg_decoration_types
+#include "xdg-decoration-unstable-v1-client-protocol-code.h"
+#undef types
+
+#define types _glfw_viewporter_types
+#include "viewporter-client-protocol-code.h"
+#undef types
+
+#define types _glfw_relative_pointer_types
+#include "relative-pointer-unstable-v1-client-protocol-code.h"
+#undef types
+
+#define types _glfw_pointer_constraints_types
+#include "pointer-constraints-unstable-v1-client-protocol-code.h"
+#undef types
+
+#define types _glfw_fractional_scale_types
+#include "fractional-scale-v1-client-protocol-code.h"
+#undef types
+
+#define types _glfw_xdg_activation_types
+#include "xdg-activation-v1-client-protocol-code.h"
+#undef types
+
+#define types _glfw_idle_inhibit_types
+#include "idle-inhibit-unstable-v1-client-protocol-code.h"
+#undef types
+
+static void wmBaseHandlePing(void* userData,
+                             struct xdg_wm_base* wmBase,
+                             uint32_t serial)
+{
+    xdg_wm_base_pong(wmBase, serial);
+}
+
+static const struct xdg_wm_base_listener wmBaseListener =
+{
+    wmBaseHandlePing
+};
+
+static void registryHandleGlobal(void* userData,
+                                 struct wl_registry* registry,
+                                 uint32_t name,
+                                 const char* interface,
+                                 uint32_t version)
+{
+    if (strcmp(interface, "wl_compositor") == 0)
+    {
+        _glfw.wl.compositor =
+            wl_registry_bind(registry, name, &wl_compositor_interface,
+                             _glfw_min(3, version));
+    }
+    else if (strcmp(interface, "wl_subcompositor") == 0)
+    {
+        _glfw.wl.subcompositor =
+            wl_registry_bind(registry, name, &wl_subcompositor_interface, 1);
+    }
+    else if (strcmp(interface, "wl_shm") == 0)
+    {
+        _glfw.wl.shm =
+            wl_registry_bind(registry, name, &wl_shm_interface, 1);
+    }
+    else if (strcmp(interface, "wl_output") == 0)
+    {
+        _glfwAddOutputWayland(name, version);
+    }
+    else if (strcmp(interface, "wl_seat") == 0)
+    {
+        if (!_glfw.wl.seat)
+        {
+            _glfw.wl.seat =
+                wl_registry_bind(registry, name, &wl_seat_interface,
+                                 _glfw_min(4, version));
+            _glfwAddSeatListenerWayland(_glfw.wl.seat);
+
+            if (wl_seat_get_version(_glfw.wl.seat) >=
+                WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION)
+            {
+                _glfw.wl.keyRepeatTimerfd =
+                    timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC | TFD_NONBLOCK);
+            }
+        }
+    }
+    else if (strcmp(interface, "wl_data_device_manager") == 0)
+    {
+        if (!_glfw.wl.dataDeviceManager)
+        {
+            _glfw.wl.dataDeviceManager =
+                wl_registry_bind(registry, name,
+                                 &wl_data_device_manager_interface, 1);
+        }
+    }
+    else if (strcmp(interface, "xdg_wm_base") == 0)
+    {
+        _glfw.wl.wmBase =
+            wl_registry_bind(registry, name, &xdg_wm_base_interface, 1);
+        xdg_wm_base_add_listener(_glfw.wl.wmBase, &wmBaseListener, NULL);
+    }
+    else if (strcmp(interface, "zxdg_decoration_manager_v1") == 0)
+    {
+        _glfw.wl.decorationManager =
+            wl_registry_bind(registry, name,
+                             &zxdg_decoration_manager_v1_interface,
+                             1);
+    }
+    else if (strcmp(interface, "wp_viewporter") == 0)
+    {
+        _glfw.wl.viewporter =
+            wl_registry_bind(registry, name, &wp_viewporter_interface, 1);
+    }
+    else if (strcmp(interface, "zwp_relative_pointer_manager_v1") == 0)
+    {
+        _glfw.wl.relativePointerManager =
+            wl_registry_bind(registry, name,
+                             &zwp_relative_pointer_manager_v1_interface,
+                             1);
+    }
+    else if (strcmp(interface, "zwp_pointer_constraints_v1") == 0)
+    {
+        _glfw.wl.pointerConstraints =
+            wl_registry_bind(registry, name,
+                             &zwp_pointer_constraints_v1_interface,
+                             1);
+    }
+    else if (strcmp(interface, "zwp_idle_inhibit_manager_v1") == 0)
+    {
+        _glfw.wl.idleInhibitManager =
+            wl_registry_bind(registry, name,
+                             &zwp_idle_inhibit_manager_v1_interface,
+                             1);
+    }
+    else if (strcmp(interface, "xdg_activation_v1") == 0)
+    {
+        _glfw.wl.activationManager =
+            wl_registry_bind(registry, name,
+                             &xdg_activation_v1_interface,
+                             1);
+    }
+    else if (strcmp(interface, "wp_fractional_scale_manager_v1") == 0)
+    {
+        _glfw.wl.fractionalScaleManager =
+            wl_registry_bind(registry, name,
+                             &wp_fractional_scale_manager_v1_interface,
+                             1);
+    }
+}
+
+static void registryHandleGlobalRemove(void* userData,
+                                       struct wl_registry* registry,
+                                       uint32_t name)
+{
+    for (int i = 0; i < _glfw.monitorCount; ++i)
+    {
+        _GLFWmonitor* monitor = _glfw.monitors[i];
+        if (monitor->wl.name == name)
+        {
+            _glfwInputMonitor(monitor, GLFW_DISCONNECTED, 0);
+            return;
+        }
+    }
+}
+
+
+static const struct wl_registry_listener registryListener =
+{
+    registryHandleGlobal,
+    registryHandleGlobalRemove
+};
+
+void libdecorHandleError(struct libdecor* context,
+                         enum libdecor_error error,
+                         const char* message)
+{
+    _glfwInputError(GLFW_PLATFORM_ERROR,
+                    "Wayland: libdecor error %u: %s",
+                    error, message);
+}
+
+static const struct libdecor_interface libdecorInterface =
+{
+    libdecorHandleError
+};
+
+static void libdecorReadyCallback(void* userData,
+                                  struct wl_callback* callback,
+                                  uint32_t time)
+{
+    _glfw.wl.libdecor.ready = GLFW_TRUE;
+
+    assert(_glfw.wl.libdecor.callback == callback);
+    wl_callback_destroy(_glfw.wl.libdecor.callback);
+    _glfw.wl.libdecor.callback = NULL;
+}
+
+static const struct wl_callback_listener libdecorReadyListener =
+{
+    libdecorReadyCallback
+};
+
+// Create key code translation tables
+//
+static void createKeyTables(void)
+{
+    memset(_glfw.wl.keycodes, -1, sizeof(_glfw.wl.keycodes));
+    memset(_glfw.wl.scancodes, -1, sizeof(_glfw.wl.scancodes));
+
+    _glfw.wl.keycodes[KEY_GRAVE]      = GLFW_KEY_GRAVE_ACCENT;
+    _glfw.wl.keycodes[KEY_1]          = GLFW_KEY_1;
+    _glfw.wl.keycodes[KEY_2]          = GLFW_KEY_2;
+    _glfw.wl.keycodes[KEY_3]          = GLFW_KEY_3;
+    _glfw.wl.keycodes[KEY_4]          = GLFW_KEY_4;
+    _glfw.wl.keycodes[KEY_5]          = GLFW_KEY_5;
+    _glfw.wl.keycodes[KEY_6]          = GLFW_KEY_6;
+    _glfw.wl.keycodes[KEY_7]          = GLFW_KEY_7;
+    _glfw.wl.keycodes[KEY_8]          = GLFW_KEY_8;
+    _glfw.wl.keycodes[KEY_9]          = GLFW_KEY_9;
+    _glfw.wl.keycodes[KEY_0]          = GLFW_KEY_0;
+    _glfw.wl.keycodes[KEY_SPACE]      = GLFW_KEY_SPACE;
+    _glfw.wl.keycodes[KEY_MINUS]      = GLFW_KEY_MINUS;
+    _glfw.wl.keycodes[KEY_EQUAL]      = GLFW_KEY_EQUAL;
+    _glfw.wl.keycodes[KEY_Q]          = GLFW_KEY_Q;
+    _glfw.wl.keycodes[KEY_W]          = GLFW_KEY_W;
+    _glfw.wl.keycodes[KEY_E]          = GLFW_KEY_E;
+    _glfw.wl.keycodes[KEY_R]          = GLFW_KEY_R;
+    _glfw.wl.keycodes[KEY_T]          = GLFW_KEY_T;
+    _glfw.wl.keycodes[KEY_Y]          = GLFW_KEY_Y;
+    _glfw.wl.keycodes[KEY_U]          = GLFW_KEY_U;
+    _glfw.wl.keycodes[KEY_I]          = GLFW_KEY_I;
+    _glfw.wl.keycodes[KEY_O]          = GLFW_KEY_O;
+    _glfw.wl.keycodes[KEY_P]          = GLFW_KEY_P;
+    _glfw.wl.keycodes[KEY_LEFTBRACE]  = GLFW_KEY_LEFT_BRACKET;
+    _glfw.wl.keycodes[KEY_RIGHTBRACE] = GLFW_KEY_RIGHT_BRACKET;
+    _glfw.wl.keycodes[KEY_A]          = GLFW_KEY_A;
+    _glfw.wl.keycodes[KEY_S]          = GLFW_KEY_S;
+    _glfw.wl.keycodes[KEY_D]          = GLFW_KEY_D;
+    _glfw.wl.keycodes[KEY_F]          = GLFW_KEY_F;
+    _glfw.wl.keycodes[KEY_G]          = GLFW_KEY_G;
+    _glfw.wl.keycodes[KEY_H]          = GLFW_KEY_H;
+    _glfw.wl.keycodes[KEY_J]          = GLFW_KEY_J;
+    _glfw.wl.keycodes[KEY_K]          = GLFW_KEY_K;
+    _glfw.wl.keycodes[KEY_L]          = GLFW_KEY_L;
+    _glfw.wl.keycodes[KEY_SEMICOLON]  = GLFW_KEY_SEMICOLON;
+    _glfw.wl.keycodes[KEY_APOSTROPHE] = GLFW_KEY_APOSTROPHE;
+    _glfw.wl.keycodes[KEY_Z]          = GLFW_KEY_Z;
+    _glfw.wl.keycodes[KEY_X]          = GLFW_KEY_X;
+    _glfw.wl.keycodes[KEY_C]          = GLFW_KEY_C;
+    _glfw.wl.keycodes[KEY_V]          = GLFW_KEY_V;
+    _glfw.wl.keycodes[KEY_B]          = GLFW_KEY_B;
+    _glfw.wl.keycodes[KEY_N]          = GLFW_KEY_N;
+    _glfw.wl.keycodes[KEY_M]          = GLFW_KEY_M;
+    _glfw.wl.keycodes[KEY_COMMA]      = GLFW_KEY_COMMA;
+    _glfw.wl.keycodes[KEY_DOT]        = GLFW_KEY_PERIOD;
+    _glfw.wl.keycodes[KEY_SLASH]      = GLFW_KEY_SLASH;
+    _glfw.wl.keycodes[KEY_BACKSLASH]  = GLFW_KEY_BACKSLASH;
+    _glfw.wl.keycodes[KEY_ESC]        = GLFW_KEY_ESCAPE;
+    _glfw.wl.keycodes[KEY_TAB]        = GLFW_KEY_TAB;
+    _glfw.wl.keycodes[KEY_LEFTSHIFT]  = GLFW_KEY_LEFT_SHIFT;
+    _glfw.wl.keycodes[KEY_RIGHTSHIFT] = GLFW_KEY_RIGHT_SHIFT;
+    _glfw.wl.keycodes[KEY_LEFTCTRL]   = GLFW_KEY_LEFT_CONTROL;
+    _glfw.wl.keycodes[KEY_RIGHTCTRL]  = GLFW_KEY_RIGHT_CONTROL;
+    _glfw.wl.keycodes[KEY_LEFTALT]    = GLFW_KEY_LEFT_ALT;
+    _glfw.wl.keycodes[KEY_RIGHTALT]   = GLFW_KEY_RIGHT_ALT;
+    _glfw.wl.keycodes[KEY_LEFTMETA]   = GLFW_KEY_LEFT_SUPER;
+    _glfw.wl.keycodes[KEY_RIGHTMETA]  = GLFW_KEY_RIGHT_SUPER;
+    _glfw.wl.keycodes[KEY_COMPOSE]    = GLFW_KEY_MENU;
+    _glfw.wl.keycodes[KEY_NUMLOCK]    = GLFW_KEY_NUM_LOCK;
+    _glfw.wl.keycodes[KEY_CAPSLOCK]   = GLFW_KEY_CAPS_LOCK;
+    _glfw.wl.keycodes[KEY_PRINT]      = GLFW_KEY_PRINT_SCREEN;
+    _glfw.wl.keycodes[KEY_SCROLLLOCK] = GLFW_KEY_SCROLL_LOCK;
+    _glfw.wl.keycodes[KEY_PAUSE]      = GLFW_KEY_PAUSE;
+    _glfw.wl.keycodes[KEY_DELETE]     = GLFW_KEY_DELETE;
+    _glfw.wl.keycodes[KEY_BACKSPACE]  = GLFW_KEY_BACKSPACE;
+    _glfw.wl.keycodes[KEY_ENTER]      = GLFW_KEY_ENTER;
+    _glfw.wl.keycodes[KEY_HOME]       = GLFW_KEY_HOME;
+    _glfw.wl.keycodes[KEY_END]        = GLFW_KEY_END;
+    _glfw.wl.keycodes[KEY_PAGEUP]     = GLFW_KEY_PAGE_UP;
+    _glfw.wl.keycodes[KEY_PAGEDOWN]   = GLFW_KEY_PAGE_DOWN;
+    _glfw.wl.keycodes[KEY_INSERT]     = GLFW_KEY_INSERT;
+    _glfw.wl.keycodes[KEY_LEFT]       = GLFW_KEY_LEFT;
+    _glfw.wl.keycodes[KEY_RIGHT]      = GLFW_KEY_RIGHT;
+    _glfw.wl.keycodes[KEY_DOWN]       = GLFW_KEY_DOWN;
+    _glfw.wl.keycodes[KEY_UP]         = GLFW_KEY_UP;
+    _glfw.wl.keycodes[KEY_F1]         = GLFW_KEY_F1;
+    _glfw.wl.keycodes[KEY_F2]         = GLFW_KEY_F2;
+    _glfw.wl.keycodes[KEY_F3]         = GLFW_KEY_F3;
+    _glfw.wl.keycodes[KEY_F4]         = GLFW_KEY_F4;
+    _glfw.wl.keycodes[KEY_F5]         = GLFW_KEY_F5;
+    _glfw.wl.keycodes[KEY_F6]         = GLFW_KEY_F6;
+    _glfw.wl.keycodes[KEY_F7]         = GLFW_KEY_F7;
+    _glfw.wl.keycodes[KEY_F8]         = GLFW_KEY_F8;
+    _glfw.wl.keycodes[KEY_F9]         = GLFW_KEY_F9;
+    _glfw.wl.keycodes[KEY_F10]        = GLFW_KEY_F10;
+    _glfw.wl.keycodes[KEY_F11]        = GLFW_KEY_F11;
+    _glfw.wl.keycodes[KEY_F12]        = GLFW_KEY_F12;
+    _glfw.wl.keycodes[KEY_F13]        = GLFW_KEY_F13;
+    _glfw.wl.keycodes[KEY_F14]        = GLFW_KEY_F14;
+    _glfw.wl.keycodes[KEY_F15]        = GLFW_KEY_F15;
+    _glfw.wl.keycodes[KEY_F16]        = GLFW_KEY_F16;
+    _glfw.wl.keycodes[KEY_F17]        = GLFW_KEY_F17;
+    _glfw.wl.keycodes[KEY_F18]        = GLFW_KEY_F18;
+    _glfw.wl.keycodes[KEY_F19]        = GLFW_KEY_F19;
+    _glfw.wl.keycodes[KEY_F20]        = GLFW_KEY_F20;
+    _glfw.wl.keycodes[KEY_F21]        = GLFW_KEY_F21;
+    _glfw.wl.keycodes[KEY_F22]        = GLFW_KEY_F22;
+    _glfw.wl.keycodes[KEY_F23]        = GLFW_KEY_F23;
+    _glfw.wl.keycodes[KEY_F24]        = GLFW_KEY_F24;
+    _glfw.wl.keycodes[KEY_KPSLASH]    = GLFW_KEY_KP_DIVIDE;
+    _glfw.wl.keycodes[KEY_KPASTERISK] = GLFW_KEY_KP_MULTIPLY;
+    _glfw.wl.keycodes[KEY_KPMINUS]    = GLFW_KEY_KP_SUBTRACT;
+    _glfw.wl.keycodes[KEY_KPPLUS]     = GLFW_KEY_KP_ADD;
+    _glfw.wl.keycodes[KEY_KP0]        = GLFW_KEY_KP_0;
+    _glfw.wl.keycodes[KEY_KP1]        = GLFW_KEY_KP_1;
+    _glfw.wl.keycodes[KEY_KP2]        = GLFW_KEY_KP_2;
+    _glfw.wl.keycodes[KEY_KP3]        = GLFW_KEY_KP_3;
+    _glfw.wl.keycodes[KEY_KP4]        = GLFW_KEY_KP_4;
+    _glfw.wl.keycodes[KEY_KP5]        = GLFW_KEY_KP_5;
+    _glfw.wl.keycodes[KEY_KP6]        = GLFW_KEY_KP_6;
+    _glfw.wl.keycodes[KEY_KP7]        = GLFW_KEY_KP_7;
+    _glfw.wl.keycodes[KEY_KP8]        = GLFW_KEY_KP_8;
+    _glfw.wl.keycodes[KEY_KP9]        = GLFW_KEY_KP_9;
+    _glfw.wl.keycodes[KEY_KPDOT]      = GLFW_KEY_KP_DECIMAL;
+    _glfw.wl.keycodes[KEY_KPEQUAL]    = GLFW_KEY_KP_EQUAL;
+    _glfw.wl.keycodes[KEY_KPENTER]    = GLFW_KEY_KP_ENTER;
+    _glfw.wl.keycodes[KEY_102ND]      = GLFW_KEY_WORLD_2;
+
+    for (int scancode = 0;  scancode < 256;  scancode++)
+    {
+        if (_glfw.wl.keycodes[scancode] > 0)
+            _glfw.wl.scancodes[_glfw.wl.keycodes[scancode]] = scancode;
+    }
+}
+
+static GLFWbool loadCursorTheme(void)
+{
+    int cursorSize = 16;
+
+    const char* sizeString = getenv("XCURSOR_SIZE");
+    if (sizeString)
+    {
+        errno = 0;
+        const long cursorSizeLong = strtol(sizeString, NULL, 10);
+        if (errno == 0 && cursorSizeLong > 0 && cursorSizeLong < INT_MAX)
+            cursorSize = (int) cursorSizeLong;
+    }
+
+    const char* themeName = getenv("XCURSOR_THEME");
+
+    _glfw.wl.cursorTheme = wl_cursor_theme_load(themeName, cursorSize, _glfw.wl.shm);
+    if (!_glfw.wl.cursorTheme)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to load default cursor theme");
+        return GLFW_FALSE;
+    }
+
+    // If this happens to be NULL, we just fallback to the scale=1 version.
+    _glfw.wl.cursorThemeHiDPI =
+        wl_cursor_theme_load(themeName, cursorSize * 2, _glfw.wl.shm);
+
+    _glfw.wl.cursorSurface = wl_compositor_create_surface(_glfw.wl.compositor);
+    _glfw.wl.cursorTimerfd = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC | TFD_NONBLOCK);
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwConnectWayland(int platformID, _GLFWplatform* platform)
+{
+    const _GLFWplatform wayland =
+    {
+        .platformID = GLFW_PLATFORM_WAYLAND,
+        .init = _glfwInitWayland,
+        .terminate = _glfwTerminateWayland,
+        .getCursorPos = _glfwGetCursorPosWayland,
+        .setCursorPos = _glfwSetCursorPosWayland,
+        .setCursorMode = _glfwSetCursorModeWayland,
+        .setRawMouseMotion = _glfwSetRawMouseMotionWayland,
+        .rawMouseMotionSupported = _glfwRawMouseMotionSupportedWayland,
+        .createCursor = _glfwCreateCursorWayland,
+        .createStandardCursor = _glfwCreateStandardCursorWayland,
+        .destroyCursor = _glfwDestroyCursorWayland,
+        .setCursor = _glfwSetCursorWayland,
+        .getScancodeName = _glfwGetScancodeNameWayland,
+        .getKeyScancode = _glfwGetKeyScancodeWayland,
+        .setClipboardString = _glfwSetClipboardStringWayland,
+        .getClipboardString = _glfwGetClipboardStringWayland,
+#if defined(GLFW_BUILD_LINUX_JOYSTICK)
+        .initJoysticks = _glfwInitJoysticksLinux,
+        .terminateJoysticks = _glfwTerminateJoysticksLinux,
+        .pollJoystick = _glfwPollJoystickLinux,
+        .getMappingName = _glfwGetMappingNameLinux,
+        .updateGamepadGUID = _glfwUpdateGamepadGUIDLinux,
+#else
+        .initJoysticks = _glfwInitJoysticksNull,
+        .terminateJoysticks = _glfwTerminateJoysticksNull,
+        .pollJoystick = _glfwPollJoystickNull,
+        .getMappingName = _glfwGetMappingNameNull,
+        .updateGamepadGUID = _glfwUpdateGamepadGUIDNull,
+#endif
+        .freeMonitor = _glfwFreeMonitorWayland,
+        .getMonitorPos = _glfwGetMonitorPosWayland,
+        .getMonitorContentScale = _glfwGetMonitorContentScaleWayland,
+        .getMonitorWorkarea = _glfwGetMonitorWorkareaWayland,
+        .getVideoModes = _glfwGetVideoModesWayland,
+        .getVideoMode = _glfwGetVideoModeWayland,
+        .getGammaRamp = _glfwGetGammaRampWayland,
+        .setGammaRamp = _glfwSetGammaRampWayland,
+        .createWindow = _glfwCreateWindowWayland,
+        .destroyWindow = _glfwDestroyWindowWayland,
+        .setWindowTitle = _glfwSetWindowTitleWayland,
+        .setWindowIcon = _glfwSetWindowIconWayland,
+        .getWindowPos = _glfwGetWindowPosWayland,
+        .setWindowPos = _glfwSetWindowPosWayland,
+        .getWindowSize = _glfwGetWindowSizeWayland,
+        .setWindowSize = _glfwSetWindowSizeWayland,
+        .setWindowSizeLimits = _glfwSetWindowSizeLimitsWayland,
+        .setWindowAspectRatio = _glfwSetWindowAspectRatioWayland,
+        .getFramebufferSize = _glfwGetFramebufferSizeWayland,
+        .getWindowFrameSize = _glfwGetWindowFrameSizeWayland,
+        .getWindowContentScale = _glfwGetWindowContentScaleWayland,
+        .iconifyWindow = _glfwIconifyWindowWayland,
+        .restoreWindow = _glfwRestoreWindowWayland,
+        .maximizeWindow = _glfwMaximizeWindowWayland,
+        .showWindow = _glfwShowWindowWayland,
+        .hideWindow = _glfwHideWindowWayland,
+        .requestWindowAttention = _glfwRequestWindowAttentionWayland,
+        .focusWindow = _glfwFocusWindowWayland,
+        .setWindowMonitor = _glfwSetWindowMonitorWayland,
+        .windowFocused = _glfwWindowFocusedWayland,
+        .windowIconified = _glfwWindowIconifiedWayland,
+        .windowVisible = _glfwWindowVisibleWayland,
+        .windowMaximized = _glfwWindowMaximizedWayland,
+        .windowHovered = _glfwWindowHoveredWayland,
+        .framebufferTransparent = _glfwFramebufferTransparentWayland,
+        .getWindowOpacity = _glfwGetWindowOpacityWayland,
+        .setWindowResizable = _glfwSetWindowResizableWayland,
+        .setWindowDecorated = _glfwSetWindowDecoratedWayland,
+        .setWindowFloating = _glfwSetWindowFloatingWayland,
+        .setWindowOpacity = _glfwSetWindowOpacityWayland,
+        .setWindowMousePassthrough = _glfwSetWindowMousePassthroughWayland,
+        .pollEvents = _glfwPollEventsWayland,
+        .waitEvents = _glfwWaitEventsWayland,
+        .waitEventsTimeout = _glfwWaitEventsTimeoutWayland,
+        .postEmptyEvent = _glfwPostEmptyEventWayland,
+        .getEGLPlatform = _glfwGetEGLPlatformWayland,
+        .getEGLNativeDisplay = _glfwGetEGLNativeDisplayWayland,
+        .getEGLNativeWindow = _glfwGetEGLNativeWindowWayland,
+        .getRequiredInstanceExtensions = _glfwGetRequiredInstanceExtensionsWayland,
+        .getPhysicalDevicePresentationSupport = _glfwGetPhysicalDevicePresentationSupportWayland,
+        .createWindowSurface = _glfwCreateWindowSurfaceWayland
+    };
+
+    void* module = _glfwPlatformLoadModule("libwayland-client.so.0");
+    if (!module)
+    {
+        if (platformID == GLFW_PLATFORM_WAYLAND)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Wayland: Failed to load libwayland-client");
+        }
+
+        return GLFW_FALSE;
+    }
+
+    PFN_wl_display_connect wl_display_connect = (PFN_wl_display_connect)
+        _glfwPlatformGetModuleSymbol(module, "wl_display_connect");
+    if (!wl_display_connect)
+    {
+        if (platformID == GLFW_PLATFORM_WAYLAND)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Wayland: Failed to load libwayland-client entry point");
+        }
+
+        _glfwPlatformFreeModule(module);
+        return GLFW_FALSE;
+    }
+
+    struct wl_display* display = wl_display_connect(NULL);
+    if (!display)
+    {
+        if (platformID == GLFW_PLATFORM_WAYLAND)
+            _glfwInputError(GLFW_PLATFORM_ERROR, "Wayland: Failed to connect to display");
+
+        _glfwPlatformFreeModule(module);
+        return GLFW_FALSE;
+    }
+
+    _glfw.wl.display = display;
+    _glfw.wl.client.handle = module;
+
+    *platform = wayland;
+    return GLFW_TRUE;
+}
+
+int _glfwInitWayland(void)
+{
+    // These must be set before any failure checks
+    _glfw.wl.keyRepeatTimerfd = -1;
+    _glfw.wl.cursorTimerfd = -1;
+
+    _glfw.wl.tag = glfwGetVersionString();
+
+    _glfw.wl.client.display_flush = (PFN_wl_display_flush)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_display_flush");
+    _glfw.wl.client.display_cancel_read = (PFN_wl_display_cancel_read)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_display_cancel_read");
+    _glfw.wl.client.display_dispatch_pending = (PFN_wl_display_dispatch_pending)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_display_dispatch_pending");
+    _glfw.wl.client.display_read_events = (PFN_wl_display_read_events)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_display_read_events");
+    _glfw.wl.client.display_disconnect = (PFN_wl_display_disconnect)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_display_disconnect");
+    _glfw.wl.client.display_roundtrip = (PFN_wl_display_roundtrip)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_display_roundtrip");
+    _glfw.wl.client.display_get_fd = (PFN_wl_display_get_fd)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_display_get_fd");
+    _glfw.wl.client.display_prepare_read = (PFN_wl_display_prepare_read)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_display_prepare_read");
+    _glfw.wl.client.proxy_marshal = (PFN_wl_proxy_marshal)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_proxy_marshal");
+    _glfw.wl.client.proxy_add_listener = (PFN_wl_proxy_add_listener)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_proxy_add_listener");
+    _glfw.wl.client.proxy_destroy = (PFN_wl_proxy_destroy)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_proxy_destroy");
+    _glfw.wl.client.proxy_marshal_constructor = (PFN_wl_proxy_marshal_constructor)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_proxy_marshal_constructor");
+    _glfw.wl.client.proxy_marshal_constructor_versioned = (PFN_wl_proxy_marshal_constructor_versioned)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_proxy_marshal_constructor_versioned");
+    _glfw.wl.client.proxy_get_user_data = (PFN_wl_proxy_get_user_data)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_proxy_get_user_data");
+    _glfw.wl.client.proxy_set_user_data = (PFN_wl_proxy_set_user_data)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_proxy_set_user_data");
+    _glfw.wl.client.proxy_get_tag = (PFN_wl_proxy_get_tag)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_proxy_get_tag");
+    _glfw.wl.client.proxy_set_tag = (PFN_wl_proxy_set_tag)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_proxy_set_tag");
+    _glfw.wl.client.proxy_get_version = (PFN_wl_proxy_get_version)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_proxy_get_version");
+    _glfw.wl.client.proxy_marshal_flags = (PFN_wl_proxy_marshal_flags)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.client.handle, "wl_proxy_marshal_flags");
+
+    if (!_glfw.wl.client.display_flush ||
+        !_glfw.wl.client.display_cancel_read ||
+        !_glfw.wl.client.display_dispatch_pending ||
+        !_glfw.wl.client.display_read_events ||
+        !_glfw.wl.client.display_disconnect ||
+        !_glfw.wl.client.display_roundtrip ||
+        !_glfw.wl.client.display_get_fd ||
+        !_glfw.wl.client.display_prepare_read ||
+        !_glfw.wl.client.proxy_marshal ||
+        !_glfw.wl.client.proxy_add_listener ||
+        !_glfw.wl.client.proxy_destroy ||
+        !_glfw.wl.client.proxy_marshal_constructor ||
+        !_glfw.wl.client.proxy_marshal_constructor_versioned ||
+        !_glfw.wl.client.proxy_get_user_data ||
+        !_glfw.wl.client.proxy_set_user_data ||
+        !_glfw.wl.client.proxy_get_tag ||
+        !_glfw.wl.client.proxy_set_tag)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to load libwayland-client entry point");
+        return GLFW_FALSE;
+    }
+
+    _glfw.wl.cursor.handle = _glfwPlatformLoadModule("libwayland-cursor.so.0");
+    if (!_glfw.wl.cursor.handle)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to load libwayland-cursor");
+        return GLFW_FALSE;
+    }
+
+    _glfw.wl.cursor.theme_load = (PFN_wl_cursor_theme_load)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.cursor.handle, "wl_cursor_theme_load");
+    _glfw.wl.cursor.theme_destroy = (PFN_wl_cursor_theme_destroy)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.cursor.handle, "wl_cursor_theme_destroy");
+    _glfw.wl.cursor.theme_get_cursor = (PFN_wl_cursor_theme_get_cursor)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.cursor.handle, "wl_cursor_theme_get_cursor");
+    _glfw.wl.cursor.image_get_buffer = (PFN_wl_cursor_image_get_buffer)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.cursor.handle, "wl_cursor_image_get_buffer");
+
+    _glfw.wl.egl.handle = _glfwPlatformLoadModule("libwayland-egl.so.1");
+    if (!_glfw.wl.egl.handle)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to load libwayland-egl");
+        return GLFW_FALSE;
+    }
+
+    _glfw.wl.egl.window_create = (PFN_wl_egl_window_create)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.egl.handle, "wl_egl_window_create");
+    _glfw.wl.egl.window_destroy = (PFN_wl_egl_window_destroy)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.egl.handle, "wl_egl_window_destroy");
+    _glfw.wl.egl.window_resize = (PFN_wl_egl_window_resize)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.egl.handle, "wl_egl_window_resize");
+
+    _glfw.wl.xkb.handle = _glfwPlatformLoadModule("libxkbcommon.so.0");
+    if (!_glfw.wl.xkb.handle)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to load libxkbcommon");
+        return GLFW_FALSE;
+    }
+
+    _glfw.wl.xkb.context_new = (PFN_xkb_context_new)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_context_new");
+    _glfw.wl.xkb.context_unref = (PFN_xkb_context_unref)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_context_unref");
+    _glfw.wl.xkb.keymap_new_from_string = (PFN_xkb_keymap_new_from_string)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_keymap_new_from_string");
+    _glfw.wl.xkb.keymap_unref = (PFN_xkb_keymap_unref)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_keymap_unref");
+    _glfw.wl.xkb.keymap_mod_get_index = (PFN_xkb_keymap_mod_get_index)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_keymap_mod_get_index");
+    _glfw.wl.xkb.keymap_key_repeats = (PFN_xkb_keymap_key_repeats)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_keymap_key_repeats");
+    _glfw.wl.xkb.keymap_key_get_syms_by_level = (PFN_xkb_keymap_key_get_syms_by_level)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_keymap_key_get_syms_by_level");
+    _glfw.wl.xkb.state_new = (PFN_xkb_state_new)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_state_new");
+    _glfw.wl.xkb.state_unref = (PFN_xkb_state_unref)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_state_unref");
+    _glfw.wl.xkb.state_key_get_syms = (PFN_xkb_state_key_get_syms)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_state_key_get_syms");
+    _glfw.wl.xkb.state_update_mask = (PFN_xkb_state_update_mask)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_state_update_mask");
+    _glfw.wl.xkb.state_key_get_layout = (PFN_xkb_state_key_get_layout)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_state_key_get_layout");
+    _glfw.wl.xkb.state_mod_index_is_active = (PFN_xkb_state_mod_index_is_active)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_state_mod_index_is_active");
+    _glfw.wl.xkb.compose_table_new_from_locale = (PFN_xkb_compose_table_new_from_locale)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_compose_table_new_from_locale");
+    _glfw.wl.xkb.compose_table_unref = (PFN_xkb_compose_table_unref)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_compose_table_unref");
+    _glfw.wl.xkb.compose_state_new = (PFN_xkb_compose_state_new)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_compose_state_new");
+    _glfw.wl.xkb.compose_state_unref = (PFN_xkb_compose_state_unref)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_compose_state_unref");
+    _glfw.wl.xkb.compose_state_feed = (PFN_xkb_compose_state_feed)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_compose_state_feed");
+    _glfw.wl.xkb.compose_state_get_status = (PFN_xkb_compose_state_get_status)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_compose_state_get_status");
+    _glfw.wl.xkb.compose_state_get_one_sym = (PFN_xkb_compose_state_get_one_sym)
+        _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_compose_state_get_one_sym");
+
+    if (!_glfw.wl.xkb.context_new ||
+        !_glfw.wl.xkb.context_unref ||
+        !_glfw.wl.xkb.keymap_new_from_string ||
+        !_glfw.wl.xkb.keymap_unref ||
+        !_glfw.wl.xkb.keymap_mod_get_index ||
+        !_glfw.wl.xkb.keymap_key_repeats ||
+        !_glfw.wl.xkb.keymap_key_get_syms_by_level ||
+        !_glfw.wl.xkb.state_new ||
+        !_glfw.wl.xkb.state_unref ||
+        !_glfw.wl.xkb.state_key_get_syms ||
+        !_glfw.wl.xkb.state_update_mask ||
+        !_glfw.wl.xkb.state_key_get_layout ||
+        !_glfw.wl.xkb.state_mod_index_is_active ||
+        !_glfw.wl.xkb.compose_table_new_from_locale ||
+        !_glfw.wl.xkb.compose_table_unref ||
+        !_glfw.wl.xkb.compose_state_new ||
+        !_glfw.wl.xkb.compose_state_unref ||
+        !_glfw.wl.xkb.compose_state_feed ||
+        !_glfw.wl.xkb.compose_state_get_status ||
+        !_glfw.wl.xkb.compose_state_get_one_sym)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to load all entry points from libxkbcommon");
+        return GLFW_FALSE;
+    }
+
+    if (_glfw.hints.init.wl.libdecorMode == GLFW_WAYLAND_PREFER_LIBDECOR)
+        _glfw.wl.libdecor.handle = _glfwPlatformLoadModule("libdecor-0.so.0");
+
+    if (_glfw.wl.libdecor.handle)
+    {
+        _glfw.wl.libdecor.libdecor_new_ = (PFN_libdecor_new)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_new");
+        _glfw.wl.libdecor.libdecor_unref_ = (PFN_libdecor_unref)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_unref");
+        _glfw.wl.libdecor.libdecor_get_fd_ = (PFN_libdecor_get_fd)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_get_fd");
+        _glfw.wl.libdecor.libdecor_dispatch_ = (PFN_libdecor_dispatch)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_dispatch");
+        _glfw.wl.libdecor.libdecor_decorate_ = (PFN_libdecor_decorate)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_decorate");
+        _glfw.wl.libdecor.libdecor_frame_unref_ = (PFN_libdecor_frame_unref)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_unref");
+        _glfw.wl.libdecor.libdecor_frame_set_app_id_ = (PFN_libdecor_frame_set_app_id)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_set_app_id");
+        _glfw.wl.libdecor.libdecor_frame_set_title_ = (PFN_libdecor_frame_set_title)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_set_title");
+        _glfw.wl.libdecor.libdecor_frame_set_minimized_ = (PFN_libdecor_frame_set_minimized)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_set_minimized");
+        _glfw.wl.libdecor.libdecor_frame_set_fullscreen_ = (PFN_libdecor_frame_set_fullscreen)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_set_fullscreen");
+        _glfw.wl.libdecor.libdecor_frame_unset_fullscreen_ = (PFN_libdecor_frame_unset_fullscreen)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_unset_fullscreen");
+        _glfw.wl.libdecor.libdecor_frame_map_ = (PFN_libdecor_frame_map)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_map");
+        _glfw.wl.libdecor.libdecor_frame_commit_ = (PFN_libdecor_frame_commit)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_commit");
+        _glfw.wl.libdecor.libdecor_frame_set_min_content_size_ = (PFN_libdecor_frame_set_min_content_size)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_set_min_content_size");
+        _glfw.wl.libdecor.libdecor_frame_set_max_content_size_ = (PFN_libdecor_frame_set_max_content_size)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_set_max_content_size");
+        _glfw.wl.libdecor.libdecor_frame_set_maximized_ = (PFN_libdecor_frame_set_maximized)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_set_maximized");
+        _glfw.wl.libdecor.libdecor_frame_unset_maximized_ = (PFN_libdecor_frame_unset_maximized)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_unset_maximized");
+        _glfw.wl.libdecor.libdecor_frame_set_capabilities_ = (PFN_libdecor_frame_set_capabilities)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_set_capabilities");
+        _glfw.wl.libdecor.libdecor_frame_unset_capabilities_ = (PFN_libdecor_frame_unset_capabilities)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_unset_capabilities");
+        _glfw.wl.libdecor.libdecor_frame_set_visibility_ = (PFN_libdecor_frame_set_visibility)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_set_visibility");
+        _glfw.wl.libdecor.libdecor_frame_get_xdg_toplevel_ = (PFN_libdecor_frame_get_xdg_toplevel)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_frame_get_xdg_toplevel");
+        _glfw.wl.libdecor.libdecor_configuration_get_content_size_ = (PFN_libdecor_configuration_get_content_size)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_configuration_get_content_size");
+        _glfw.wl.libdecor.libdecor_configuration_get_window_state_ = (PFN_libdecor_configuration_get_window_state)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_configuration_get_window_state");
+        _glfw.wl.libdecor.libdecor_state_new_ = (PFN_libdecor_state_new)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_state_new");
+        _glfw.wl.libdecor.libdecor_state_free_ = (PFN_libdecor_state_free)
+            _glfwPlatformGetModuleSymbol(_glfw.wl.libdecor.handle, "libdecor_state_free");
+
+        if (!_glfw.wl.libdecor.libdecor_new_ ||
+            !_glfw.wl.libdecor.libdecor_unref_ ||
+            !_glfw.wl.libdecor.libdecor_get_fd_ ||
+            !_glfw.wl.libdecor.libdecor_dispatch_ ||
+            !_glfw.wl.libdecor.libdecor_decorate_ ||
+            !_glfw.wl.libdecor.libdecor_frame_unref_ ||
+            !_glfw.wl.libdecor.libdecor_frame_set_app_id_ ||
+            !_glfw.wl.libdecor.libdecor_frame_set_title_ ||
+            !_glfw.wl.libdecor.libdecor_frame_set_minimized_ ||
+            !_glfw.wl.libdecor.libdecor_frame_set_fullscreen_ ||
+            !_glfw.wl.libdecor.libdecor_frame_unset_fullscreen_ ||
+            !_glfw.wl.libdecor.libdecor_frame_map_ ||
+            !_glfw.wl.libdecor.libdecor_frame_commit_ ||
+            !_glfw.wl.libdecor.libdecor_frame_set_min_content_size_ ||
+            !_glfw.wl.libdecor.libdecor_frame_set_max_content_size_ ||
+            !_glfw.wl.libdecor.libdecor_frame_set_maximized_ ||
+            !_glfw.wl.libdecor.libdecor_frame_unset_maximized_ ||
+            !_glfw.wl.libdecor.libdecor_frame_set_capabilities_ ||
+            !_glfw.wl.libdecor.libdecor_frame_unset_capabilities_ ||
+            !_glfw.wl.libdecor.libdecor_frame_set_visibility_ ||
+            !_glfw.wl.libdecor.libdecor_frame_get_xdg_toplevel_ ||
+            !_glfw.wl.libdecor.libdecor_configuration_get_content_size_ ||
+            !_glfw.wl.libdecor.libdecor_configuration_get_window_state_ ||
+            !_glfw.wl.libdecor.libdecor_state_new_ ||
+            !_glfw.wl.libdecor.libdecor_state_free_)
+        {
+            _glfwPlatformFreeModule(_glfw.wl.libdecor.handle);
+            memset(&_glfw.wl.libdecor, 0, sizeof(_glfw.wl.libdecor));
+        }
+    }
+
+    _glfw.wl.registry = wl_display_get_registry(_glfw.wl.display);
+    wl_registry_add_listener(_glfw.wl.registry, &registryListener, NULL);
+
+    createKeyTables();
+
+    _glfw.wl.xkb.context = xkb_context_new(0);
+    if (!_glfw.wl.xkb.context)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to initialize xkb context");
+        return GLFW_FALSE;
+    }
+
+    // Sync so we got all registry objects
+    wl_display_roundtrip(_glfw.wl.display);
+
+    // Sync so we got all initial output events
+    wl_display_roundtrip(_glfw.wl.display);
+
+    if (_glfw.wl.libdecor.handle)
+    {
+        _glfw.wl.libdecor.context = libdecor_new(_glfw.wl.display, &libdecorInterface);
+        if (_glfw.wl.libdecor.context)
+        {
+            // Perform an initial dispatch and flush to get the init started
+            libdecor_dispatch(_glfw.wl.libdecor.context, 0);
+
+            // Create sync point to "know" when libdecor is ready for use
+            _glfw.wl.libdecor.callback = wl_display_sync(_glfw.wl.display);
+            wl_callback_add_listener(_glfw.wl.libdecor.callback,
+                                     &libdecorReadyListener,
+                                     NULL);
+        }
+    }
+
+    if (!_glfw.wl.wmBase)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to find xdg-shell in your compositor");
+        return GLFW_FALSE;
+    }
+
+    if (!_glfw.wl.shm)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to find wl_shm in your compositor");
+        return GLFW_FALSE;
+    }
+
+    if (!loadCursorTheme())
+        return GLFW_FALSE;
+
+    if (_glfw.wl.seat && _glfw.wl.dataDeviceManager)
+    {
+        _glfw.wl.dataDevice =
+            wl_data_device_manager_get_data_device(_glfw.wl.dataDeviceManager,
+                                                   _glfw.wl.seat);
+        _glfwAddDataDeviceListenerWayland(_glfw.wl.dataDevice);
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateWayland(void)
+{
+    _glfwTerminateEGL();
+    _glfwTerminateOSMesa();
+
+    if (_glfw.wl.libdecor.context)
+    {
+        // Allow libdecor to finish receiving all its requested globals
+        // and ensure the associated sync callback object is destroyed
+        while (!_glfw.wl.libdecor.ready)
+            _glfwWaitEventsWayland();
+
+        libdecor_unref(_glfw.wl.libdecor.context);
+    }
+
+    if (_glfw.wl.libdecor.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.wl.libdecor.handle);
+        _glfw.wl.libdecor.handle = NULL;
+    }
+
+    if (_glfw.wl.egl.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.wl.egl.handle);
+        _glfw.wl.egl.handle = NULL;
+    }
+
+    if (_glfw.wl.xkb.composeState)
+        xkb_compose_state_unref(_glfw.wl.xkb.composeState);
+    if (_glfw.wl.xkb.keymap)
+        xkb_keymap_unref(_glfw.wl.xkb.keymap);
+    if (_glfw.wl.xkb.state)
+        xkb_state_unref(_glfw.wl.xkb.state);
+    if (_glfw.wl.xkb.context)
+        xkb_context_unref(_glfw.wl.xkb.context);
+    if (_glfw.wl.xkb.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.wl.xkb.handle);
+        _glfw.wl.xkb.handle = NULL;
+    }
+
+    if (_glfw.wl.cursorTheme)
+        wl_cursor_theme_destroy(_glfw.wl.cursorTheme);
+    if (_glfw.wl.cursorThemeHiDPI)
+        wl_cursor_theme_destroy(_glfw.wl.cursorThemeHiDPI);
+    if (_glfw.wl.cursor.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.wl.cursor.handle);
+        _glfw.wl.cursor.handle = NULL;
+    }
+
+    for (unsigned int i = 0; i < _glfw.wl.offerCount; i++)
+        wl_data_offer_destroy(_glfw.wl.offers[i].offer);
+
+    _glfw_free(_glfw.wl.offers);
+
+    if (_glfw.wl.cursorSurface)
+        wl_surface_destroy(_glfw.wl.cursorSurface);
+    if (_glfw.wl.subcompositor)
+        wl_subcompositor_destroy(_glfw.wl.subcompositor);
+    if (_glfw.wl.compositor)
+        wl_compositor_destroy(_glfw.wl.compositor);
+    if (_glfw.wl.shm)
+        wl_shm_destroy(_glfw.wl.shm);
+    if (_glfw.wl.viewporter)
+        wp_viewporter_destroy(_glfw.wl.viewporter);
+    if (_glfw.wl.decorationManager)
+        zxdg_decoration_manager_v1_destroy(_glfw.wl.decorationManager);
+    if (_glfw.wl.wmBase)
+        xdg_wm_base_destroy(_glfw.wl.wmBase);
+    if (_glfw.wl.selectionOffer)
+        wl_data_offer_destroy(_glfw.wl.selectionOffer);
+    if (_glfw.wl.dragOffer)
+        wl_data_offer_destroy(_glfw.wl.dragOffer);
+    if (_glfw.wl.selectionSource)
+        wl_data_source_destroy(_glfw.wl.selectionSource);
+    if (_glfw.wl.dataDevice)
+        wl_data_device_destroy(_glfw.wl.dataDevice);
+    if (_glfw.wl.dataDeviceManager)
+        wl_data_device_manager_destroy(_glfw.wl.dataDeviceManager);
+    if (_glfw.wl.pointer)
+        wl_pointer_destroy(_glfw.wl.pointer);
+    if (_glfw.wl.keyboard)
+        wl_keyboard_destroy(_glfw.wl.keyboard);
+    if (_glfw.wl.seat)
+        wl_seat_destroy(_glfw.wl.seat);
+    if (_glfw.wl.relativePointerManager)
+        zwp_relative_pointer_manager_v1_destroy(_glfw.wl.relativePointerManager);
+    if (_glfw.wl.pointerConstraints)
+        zwp_pointer_constraints_v1_destroy(_glfw.wl.pointerConstraints);
+    if (_glfw.wl.idleInhibitManager)
+        zwp_idle_inhibit_manager_v1_destroy(_glfw.wl.idleInhibitManager);
+    if (_glfw.wl.activationManager)
+        xdg_activation_v1_destroy(_glfw.wl.activationManager);
+    if (_glfw.wl.fractionalScaleManager)
+        wp_fractional_scale_manager_v1_destroy(_glfw.wl.fractionalScaleManager);
+    if (_glfw.wl.registry)
+        wl_registry_destroy(_glfw.wl.registry);
+    if (_glfw.wl.display)
+    {
+        wl_display_flush(_glfw.wl.display);
+        wl_display_disconnect(_glfw.wl.display);
+    }
+
+    if (_glfw.wl.keyRepeatTimerfd >= 0)
+        close(_glfw.wl.keyRepeatTimerfd);
+    if (_glfw.wl.cursorTimerfd >= 0)
+        close(_glfw.wl.cursorTimerfd);
+
+    _glfw_free(_glfw.wl.clipboardString);
+}
+
+#endif // _GLFW_WAYLAND
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wl_monitor.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wl_monitor.c
new file mode 100644
index 000000000000..1ec5f5afa49c
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wl_monitor.c
@@ -0,0 +1,277 @@
+//========================================================================
+// GLFW 3.5 Wayland - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_WAYLAND)
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <math.h>
+#include <assert.h>
+
+#include "wayland-client-protocol.h"
+
+
+static void outputHandleGeometry(void* userData,
+                                 struct wl_output* output,
+                                 int32_t x,
+                                 int32_t y,
+                                 int32_t physicalWidth,
+                                 int32_t physicalHeight,
+                                 int32_t subpixel,
+                                 const char* make,
+                                 const char* model,
+                                 int32_t transform)
+{
+    struct _GLFWmonitor* monitor = userData;
+
+    monitor->wl.x = x;
+    monitor->wl.y = y;
+    monitor->widthMM = physicalWidth;
+    monitor->heightMM = physicalHeight;
+
+    if (strlen(monitor->name) == 0)
+        snprintf(monitor->name, sizeof(monitor->name), "%s %s", make, model);
+}
+
+static void outputHandleMode(void* userData,
+                             struct wl_output* output,
+                             uint32_t flags,
+                             int32_t width,
+                             int32_t height,
+                             int32_t refresh)
+{
+    struct _GLFWmonitor* monitor = userData;
+    GLFWvidmode mode;
+
+    mode.width = width;
+    mode.height = height;
+    mode.redBits = 8;
+    mode.greenBits = 8;
+    mode.blueBits = 8;
+    mode.refreshRate = (int) round(refresh / 1000.0);
+
+    monitor->modeCount++;
+    monitor->modes =
+        _glfw_realloc(monitor->modes, monitor->modeCount * sizeof(GLFWvidmode));
+    monitor->modes[monitor->modeCount - 1] = mode;
+
+    if (flags & WL_OUTPUT_MODE_CURRENT)
+        monitor->wl.currentMode = monitor->modeCount - 1;
+}
+
+static void outputHandleDone(void* userData, struct wl_output* output)
+{
+    struct _GLFWmonitor* monitor = userData;
+
+    if (monitor->widthMM <= 0 || monitor->heightMM <= 0)
+    {
+        // If Wayland does not provide a physical size, assume the default 96 DPI
+        const GLFWvidmode* mode = &monitor->modes[monitor->wl.currentMode];
+        monitor->widthMM  = (int) (mode->width * 25.4f / 96.f);
+        monitor->heightMM = (int) (mode->height * 25.4f / 96.f);
+    }
+
+    for (int i = 0; i < _glfw.monitorCount; i++)
+    {
+        if (_glfw.monitors[i] == monitor)
+            return;
+    }
+
+    _glfwInputMonitor(monitor, GLFW_CONNECTED, _GLFW_INSERT_LAST);
+}
+
+static void outputHandleScale(void* userData,
+                              struct wl_output* output,
+                              int32_t factor)
+{
+    struct _GLFWmonitor* monitor = userData;
+
+    monitor->wl.scale = factor;
+
+    for (_GLFWwindow* window = _glfw.windowListHead; window; window = window->next)
+    {
+        for (size_t i = 0; i < window->wl.outputScaleCount; i++)
+        {
+            if (window->wl.outputScales[i].output == monitor->wl.output)
+            {
+                window->wl.outputScales[i].factor = monitor->wl.scale;
+                _glfwUpdateBufferScaleFromOutputsWayland(window);
+                break;
+            }
+        }
+    }
+}
+
+void outputHandleName(void* userData, struct wl_output* wl_output, const char* name)
+{
+    struct _GLFWmonitor* monitor = userData;
+
+    strncpy(monitor->name, name, sizeof(monitor->name) - 1);
+}
+
+void outputHandleDescription(void* userData,
+                             struct wl_output* wl_output,
+                             const char* description)
+{
+}
+
+static const struct wl_output_listener outputListener =
+{
+    outputHandleGeometry,
+    outputHandleMode,
+    outputHandleDone,
+    outputHandleScale,
+    outputHandleName,
+    outputHandleDescription,
+};
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwAddOutputWayland(uint32_t name, uint32_t version)
+{
+    if (version < 2)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Unsupported output interface version");
+        return;
+    }
+
+    version = _glfw_min(version, WL_OUTPUT_NAME_SINCE_VERSION);
+
+    struct wl_output* output = wl_registry_bind(_glfw.wl.registry,
+                                                name,
+                                                &wl_output_interface,
+                                                version);
+    if (!output)
+        return;
+
+    // The actual name of this output will be set in the geometry handler
+    _GLFWmonitor* monitor = _glfwAllocMonitor("", 0, 0);
+    monitor->wl.scale = 1;
+    monitor->wl.output = output;
+    monitor->wl.name = name;
+
+    wl_proxy_set_tag((struct wl_proxy*) output, &_glfw.wl.tag);
+    wl_output_add_listener(output, &outputListener, monitor);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwFreeMonitorWayland(_GLFWmonitor* monitor)
+{
+    if (monitor->wl.output)
+        wl_output_destroy(monitor->wl.output);
+}
+
+void _glfwGetMonitorPosWayland(_GLFWmonitor* monitor, int* xpos, int* ypos)
+{
+    if (xpos)
+        *xpos = monitor->wl.x;
+    if (ypos)
+        *ypos = monitor->wl.y;
+}
+
+void _glfwGetMonitorContentScaleWayland(_GLFWmonitor* monitor,
+                                        float* xscale, float* yscale)
+{
+    if (xscale)
+        *xscale = (float) monitor->wl.scale;
+    if (yscale)
+        *yscale = (float) monitor->wl.scale;
+}
+
+void _glfwGetMonitorWorkareaWayland(_GLFWmonitor* monitor,
+                                    int* xpos, int* ypos,
+                                    int* width, int* height)
+{
+    if (xpos)
+        *xpos = monitor->wl.x;
+    if (ypos)
+        *ypos = monitor->wl.y;
+    if (width)
+        *width = monitor->modes[monitor->wl.currentMode].width;
+    if (height)
+        *height = monitor->modes[monitor->wl.currentMode].height;
+}
+
+GLFWvidmode* _glfwGetVideoModesWayland(_GLFWmonitor* monitor, int* found)
+{
+    *found = monitor->modeCount;
+    return monitor->modes;
+}
+
+GLFWbool _glfwGetVideoModeWayland(_GLFWmonitor* monitor, GLFWvidmode* mode)
+{
+    *mode = monitor->modes[monitor->wl.currentMode];
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwGetGammaRampWayland(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
+{
+    _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                    "Wayland: Gamma ramp access is not available");
+    return GLFW_FALSE;
+}
+
+void _glfwSetGammaRampWayland(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
+{
+    _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                    "Wayland: Gamma ramp access is not available");
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI struct wl_output* glfwGetWaylandMonitor(GLFWmonitor* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_WAYLAND)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "Wayland: Platform not initialized");
+        return NULL;
+    }
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    return monitor->wl.output;
+}
+
+#endif // _GLFW_WAYLAND
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wl_platform.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wl_platform.h
new file mode 100644
index 000000000000..f3e8cba2d2ea
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wl_platform.h
@@ -0,0 +1,689 @@
+//========================================================================
+// GLFW 3.5 Wayland - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <wayland-client-core.h>
+#include <xkbcommon/xkbcommon.h>
+#include <xkbcommon/xkbcommon-compose.h>
+
+typedef VkFlags VkWaylandSurfaceCreateFlagsKHR;
+
+typedef struct VkWaylandSurfaceCreateInfoKHR
+{
+    VkStructureType                 sType;
+    const void*                     pNext;
+    VkWaylandSurfaceCreateFlagsKHR  flags;
+    struct wl_display*              display;
+    struct wl_surface*              surface;
+} VkWaylandSurfaceCreateInfoKHR;
+
+typedef VkResult (APIENTRY *PFN_vkCreateWaylandSurfaceKHR)(VkInstance,const VkWaylandSurfaceCreateInfoKHR*,const VkAllocationCallbacks*,VkSurfaceKHR*);
+typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR)(VkPhysicalDevice,uint32_t,struct wl_display*);
+
+#include "xkb_unicode.h"
+#include "posix_poll.h"
+
+typedef int (* PFN_wl_display_flush)(struct wl_display* display);
+typedef void (* PFN_wl_display_cancel_read)(struct wl_display* display);
+typedef int (* PFN_wl_display_dispatch_pending)(struct wl_display* display);
+typedef int (* PFN_wl_display_read_events)(struct wl_display* display);
+typedef struct wl_display* (* PFN_wl_display_connect)(const char*);
+typedef void (* PFN_wl_display_disconnect)(struct wl_display*);
+typedef int (* PFN_wl_display_roundtrip)(struct wl_display*);
+typedef int (* PFN_wl_display_get_fd)(struct wl_display*);
+typedef int (* PFN_wl_display_prepare_read)(struct wl_display*);
+typedef void (* PFN_wl_proxy_marshal)(struct wl_proxy*,uint32_t,...);
+typedef int (* PFN_wl_proxy_add_listener)(struct wl_proxy*,void(**)(void),void*);
+typedef void (* PFN_wl_proxy_destroy)(struct wl_proxy*);
+typedef struct wl_proxy* (* PFN_wl_proxy_marshal_constructor)(struct wl_proxy*,uint32_t,const struct wl_interface*,...);
+typedef struct wl_proxy* (* PFN_wl_proxy_marshal_constructor_versioned)(struct wl_proxy*,uint32_t,const struct wl_interface*,uint32_t,...);
+typedef void* (* PFN_wl_proxy_get_user_data)(struct wl_proxy*);
+typedef void (* PFN_wl_proxy_set_user_data)(struct wl_proxy*,void*);
+typedef void (* PFN_wl_proxy_set_tag)(struct wl_proxy*,const char*const*);
+typedef const char* const* (* PFN_wl_proxy_get_tag)(struct wl_proxy*);
+typedef uint32_t (* PFN_wl_proxy_get_version)(struct wl_proxy*);
+typedef struct wl_proxy* (* PFN_wl_proxy_marshal_flags)(struct wl_proxy*,uint32_t,const struct wl_interface*,uint32_t,uint32_t,...);
+#define wl_display_flush _glfw.wl.client.display_flush
+#define wl_display_cancel_read _glfw.wl.client.display_cancel_read
+#define wl_display_dispatch_pending _glfw.wl.client.display_dispatch_pending
+#define wl_display_read_events _glfw.wl.client.display_read_events
+#define wl_display_disconnect _glfw.wl.client.display_disconnect
+#define wl_display_roundtrip _glfw.wl.client.display_roundtrip
+#define wl_display_get_fd _glfw.wl.client.display_get_fd
+#define wl_display_prepare_read _glfw.wl.client.display_prepare_read
+#define wl_proxy_marshal _glfw.wl.client.proxy_marshal
+#define wl_proxy_add_listener _glfw.wl.client.proxy_add_listener
+#define wl_proxy_destroy _glfw.wl.client.proxy_destroy
+#define wl_proxy_marshal_constructor _glfw.wl.client.proxy_marshal_constructor
+#define wl_proxy_marshal_constructor_versioned _glfw.wl.client.proxy_marshal_constructor_versioned
+#define wl_proxy_get_user_data _glfw.wl.client.proxy_get_user_data
+#define wl_proxy_set_user_data _glfw.wl.client.proxy_set_user_data
+#define wl_proxy_get_tag _glfw.wl.client.proxy_get_tag
+#define wl_proxy_set_tag _glfw.wl.client.proxy_set_tag
+#define wl_proxy_get_version _glfw.wl.client.proxy_get_version
+#define wl_proxy_marshal_flags _glfw.wl.client.proxy_marshal_flags
+
+struct wl_shm;
+struct wl_output;
+
+#define wl_display_interface _glfw_wl_display_interface
+#define wl_subcompositor_interface _glfw_wl_subcompositor_interface
+#define wl_compositor_interface _glfw_wl_compositor_interface
+#define wl_shm_interface _glfw_wl_shm_interface
+#define wl_data_device_manager_interface _glfw_wl_data_device_manager_interface
+#define wl_shell_interface _glfw_wl_shell_interface
+#define wl_buffer_interface _glfw_wl_buffer_interface
+#define wl_callback_interface _glfw_wl_callback_interface
+#define wl_data_device_interface _glfw_wl_data_device_interface
+#define wl_data_offer_interface _glfw_wl_data_offer_interface
+#define wl_data_source_interface _glfw_wl_data_source_interface
+#define wl_keyboard_interface _glfw_wl_keyboard_interface
+#define wl_output_interface _glfw_wl_output_interface
+#define wl_pointer_interface _glfw_wl_pointer_interface
+#define wl_region_interface _glfw_wl_region_interface
+#define wl_registry_interface _glfw_wl_registry_interface
+#define wl_seat_interface _glfw_wl_seat_interface
+#define wl_shell_surface_interface _glfw_wl_shell_surface_interface
+#define wl_shm_pool_interface _glfw_wl_shm_pool_interface
+#define wl_subsurface_interface _glfw_wl_subsurface_interface
+#define wl_surface_interface _glfw_wl_surface_interface
+#define wl_touch_interface _glfw_wl_touch_interface
+#define zwp_idle_inhibitor_v1_interface _glfw_zwp_idle_inhibitor_v1_interface
+#define zwp_idle_inhibit_manager_v1_interface _glfw_zwp_idle_inhibit_manager_v1_interface
+#define zwp_confined_pointer_v1_interface _glfw_zwp_confined_pointer_v1_interface
+#define zwp_locked_pointer_v1_interface _glfw_zwp_locked_pointer_v1_interface
+#define zwp_pointer_constraints_v1_interface _glfw_zwp_pointer_constraints_v1_interface
+#define zwp_relative_pointer_v1_interface _glfw_zwp_relative_pointer_v1_interface
+#define zwp_relative_pointer_manager_v1_interface _glfw_zwp_relative_pointer_manager_v1_interface
+#define wp_viewport_interface _glfw_wp_viewport_interface
+#define wp_viewporter_interface _glfw_wp_viewporter_interface
+#define xdg_toplevel_interface _glfw_xdg_toplevel_interface
+#define zxdg_toplevel_decoration_v1_interface _glfw_zxdg_toplevel_decoration_v1_interface
+#define zxdg_decoration_manager_v1_interface _glfw_zxdg_decoration_manager_v1_interface
+#define xdg_popup_interface _glfw_xdg_popup_interface
+#define xdg_positioner_interface _glfw_xdg_positioner_interface
+#define xdg_surface_interface _glfw_xdg_surface_interface
+#define xdg_toplevel_interface _glfw_xdg_toplevel_interface
+#define xdg_wm_base_interface _glfw_xdg_wm_base_interface
+#define xdg_activation_v1_interface _glfw_xdg_activation_v1_interface
+#define xdg_activation_token_v1_interface _glfw_xdg_activation_token_v1_interface
+#define wl_surface_interface _glfw_wl_surface_interface
+#define wp_fractional_scale_v1_interface _glfw_wp_fractional_scale_v1_interface
+
+#define GLFW_WAYLAND_WINDOW_STATE         _GLFWwindowWayland  wl;
+#define GLFW_WAYLAND_LIBRARY_WINDOW_STATE _GLFWlibraryWayland wl;
+#define GLFW_WAYLAND_MONITOR_STATE        _GLFWmonitorWayland wl;
+#define GLFW_WAYLAND_CURSOR_STATE         _GLFWcursorWayland  wl;
+
+struct wl_cursor_image {
+    uint32_t width;
+    uint32_t height;
+    uint32_t hotspot_x;
+    uint32_t hotspot_y;
+    uint32_t delay;
+};
+struct wl_cursor {
+    unsigned int image_count;
+    struct wl_cursor_image** images;
+    char* name;
+};
+typedef struct wl_cursor_theme* (* PFN_wl_cursor_theme_load)(const char*, int, struct wl_shm*);
+typedef void (* PFN_wl_cursor_theme_destroy)(struct wl_cursor_theme*);
+typedef struct wl_cursor* (* PFN_wl_cursor_theme_get_cursor)(struct wl_cursor_theme*, const char*);
+typedef struct wl_buffer* (* PFN_wl_cursor_image_get_buffer)(struct wl_cursor_image*);
+#define wl_cursor_theme_load _glfw.wl.cursor.theme_load
+#define wl_cursor_theme_destroy _glfw.wl.cursor.theme_destroy
+#define wl_cursor_theme_get_cursor _glfw.wl.cursor.theme_get_cursor
+#define wl_cursor_image_get_buffer _glfw.wl.cursor.image_get_buffer
+
+typedef struct wl_egl_window* (* PFN_wl_egl_window_create)(struct wl_surface*, int, int);
+typedef void (* PFN_wl_egl_window_destroy)(struct wl_egl_window*);
+typedef void (* PFN_wl_egl_window_resize)(struct wl_egl_window*, int, int, int, int);
+#define wl_egl_window_create _glfw.wl.egl.window_create
+#define wl_egl_window_destroy _glfw.wl.egl.window_destroy
+#define wl_egl_window_resize _glfw.wl.egl.window_resize
+
+typedef struct xkb_context* (* PFN_xkb_context_new)(enum xkb_context_flags);
+typedef void (* PFN_xkb_context_unref)(struct xkb_context*);
+typedef struct xkb_keymap* (* PFN_xkb_keymap_new_from_string)(struct xkb_context*, const char*, enum xkb_keymap_format, enum xkb_keymap_compile_flags);
+typedef void (* PFN_xkb_keymap_unref)(struct xkb_keymap*);
+typedef xkb_mod_index_t (* PFN_xkb_keymap_mod_get_index)(struct xkb_keymap*, const char*);
+typedef int (* PFN_xkb_keymap_key_repeats)(struct xkb_keymap*, xkb_keycode_t);
+typedef int (* PFN_xkb_keymap_key_get_syms_by_level)(struct xkb_keymap*,xkb_keycode_t,xkb_layout_index_t,xkb_level_index_t,const xkb_keysym_t**);
+typedef struct xkb_state* (* PFN_xkb_state_new)(struct xkb_keymap*);
+typedef void (* PFN_xkb_state_unref)(struct xkb_state*);
+typedef int (* PFN_xkb_state_key_get_syms)(struct xkb_state*, xkb_keycode_t, const xkb_keysym_t**);
+typedef enum xkb_state_component (* PFN_xkb_state_update_mask)(struct xkb_state*, xkb_mod_mask_t, xkb_mod_mask_t, xkb_mod_mask_t, xkb_layout_index_t, xkb_layout_index_t, xkb_layout_index_t);
+typedef xkb_layout_index_t (* PFN_xkb_state_key_get_layout)(struct xkb_state*,xkb_keycode_t);
+typedef int (* PFN_xkb_state_mod_index_is_active)(struct xkb_state*,xkb_mod_index_t,enum xkb_state_component);
+#define xkb_context_new _glfw.wl.xkb.context_new
+#define xkb_context_unref _glfw.wl.xkb.context_unref
+#define xkb_keymap_new_from_string _glfw.wl.xkb.keymap_new_from_string
+#define xkb_keymap_unref _glfw.wl.xkb.keymap_unref
+#define xkb_keymap_mod_get_index _glfw.wl.xkb.keymap_mod_get_index
+#define xkb_keymap_key_repeats _glfw.wl.xkb.keymap_key_repeats
+#define xkb_keymap_key_get_syms_by_level _glfw.wl.xkb.keymap_key_get_syms_by_level
+#define xkb_state_new _glfw.wl.xkb.state_new
+#define xkb_state_unref _glfw.wl.xkb.state_unref
+#define xkb_state_key_get_syms _glfw.wl.xkb.state_key_get_syms
+#define xkb_state_update_mask _glfw.wl.xkb.state_update_mask
+#define xkb_state_key_get_layout _glfw.wl.xkb.state_key_get_layout
+#define xkb_state_mod_index_is_active _glfw.wl.xkb.state_mod_index_is_active
+
+typedef struct xkb_compose_table* (* PFN_xkb_compose_table_new_from_locale)(struct xkb_context*, const char*, enum xkb_compose_compile_flags);
+typedef void (* PFN_xkb_compose_table_unref)(struct xkb_compose_table*);
+typedef struct xkb_compose_state* (* PFN_xkb_compose_state_new)(struct xkb_compose_table*, enum xkb_compose_state_flags);
+typedef void (* PFN_xkb_compose_state_unref)(struct xkb_compose_state*);
+typedef enum xkb_compose_feed_result (* PFN_xkb_compose_state_feed)(struct xkb_compose_state*, xkb_keysym_t);
+typedef enum xkb_compose_status (* PFN_xkb_compose_state_get_status)(struct xkb_compose_state*);
+typedef xkb_keysym_t (* PFN_xkb_compose_state_get_one_sym)(struct xkb_compose_state*);
+#define xkb_compose_table_new_from_locale _glfw.wl.xkb.compose_table_new_from_locale
+#define xkb_compose_table_unref _glfw.wl.xkb.compose_table_unref
+#define xkb_compose_state_new _glfw.wl.xkb.compose_state_new
+#define xkb_compose_state_unref _glfw.wl.xkb.compose_state_unref
+#define xkb_compose_state_feed _glfw.wl.xkb.compose_state_feed
+#define xkb_compose_state_get_status _glfw.wl.xkb.compose_state_get_status
+#define xkb_compose_state_get_one_sym _glfw.wl.xkb.compose_state_get_one_sym
+
+struct libdecor;
+struct libdecor_frame;
+struct libdecor_state;
+struct libdecor_configuration;
+
+enum libdecor_error
+{
+	LIBDECOR_ERROR_COMPOSITOR_INCOMPATIBLE,
+	LIBDECOR_ERROR_INVALID_FRAME_CONFIGURATION,
+};
+
+enum libdecor_window_state
+{
+	LIBDECOR_WINDOW_STATE_NONE = 0,
+	LIBDECOR_WINDOW_STATE_ACTIVE = 1,
+	LIBDECOR_WINDOW_STATE_MAXIMIZED = 2,
+	LIBDECOR_WINDOW_STATE_FULLSCREEN = 4,
+	LIBDECOR_WINDOW_STATE_TILED_LEFT = 8,
+	LIBDECOR_WINDOW_STATE_TILED_RIGHT = 16,
+	LIBDECOR_WINDOW_STATE_TILED_TOP = 32,
+	LIBDECOR_WINDOW_STATE_TILED_BOTTOM = 64
+};
+
+enum libdecor_capabilities
+{
+	LIBDECOR_ACTION_MOVE = 1,
+	LIBDECOR_ACTION_RESIZE = 2,
+	LIBDECOR_ACTION_MINIMIZE = 4,
+	LIBDECOR_ACTION_FULLSCREEN = 8,
+	LIBDECOR_ACTION_CLOSE = 16
+};
+
+struct libdecor_interface
+{
+	void (* error)(struct libdecor*,enum libdecor_error,const char*);
+	void (* reserved0)(void);
+	void (* reserved1)(void);
+	void (* reserved2)(void);
+	void (* reserved3)(void);
+	void (* reserved4)(void);
+	void (* reserved5)(void);
+	void (* reserved6)(void);
+	void (* reserved7)(void);
+	void (* reserved8)(void);
+	void (* reserved9)(void);
+};
+
+struct libdecor_frame_interface
+{
+	void (* configure)(struct libdecor_frame*,struct libdecor_configuration*,void*);
+	void (* close)(struct libdecor_frame*,void*);
+	void (* commit)(struct libdecor_frame*,void*);
+	void (* dismiss_popup)(struct libdecor_frame*,const char*,void*);
+	void (* reserved0)(void);
+	void (* reserved1)(void);
+	void (* reserved2)(void);
+	void (* reserved3)(void);
+	void (* reserved4)(void);
+	void (* reserved5)(void);
+	void (* reserved6)(void);
+	void (* reserved7)(void);
+	void (* reserved8)(void);
+	void (* reserved9)(void);
+};
+
+typedef struct libdecor* (* PFN_libdecor_new)(struct wl_display*,const struct libdecor_interface*);
+typedef void (* PFN_libdecor_unref)(struct libdecor*);
+typedef int (* PFN_libdecor_get_fd)(struct libdecor*);
+typedef int (* PFN_libdecor_dispatch)(struct libdecor*,int);
+typedef struct libdecor_frame* (* PFN_libdecor_decorate)(struct libdecor*,struct wl_surface*,const struct libdecor_frame_interface*,void*);
+typedef void (* PFN_libdecor_frame_unref)(struct libdecor_frame*);
+typedef void (* PFN_libdecor_frame_set_app_id)(struct libdecor_frame*,const char*);
+typedef void (* PFN_libdecor_frame_set_title)(struct libdecor_frame*,const char*);
+typedef void (* PFN_libdecor_frame_set_minimized)(struct libdecor_frame*);
+typedef void (* PFN_libdecor_frame_set_fullscreen)(struct libdecor_frame*,struct wl_output*);
+typedef void (* PFN_libdecor_frame_unset_fullscreen)(struct libdecor_frame*);
+typedef void (* PFN_libdecor_frame_map)(struct libdecor_frame*);
+typedef void (* PFN_libdecor_frame_commit)(struct libdecor_frame*,struct libdecor_state*,struct libdecor_configuration*);
+typedef void (* PFN_libdecor_frame_set_min_content_size)(struct libdecor_frame*,int,int);
+typedef void (* PFN_libdecor_frame_set_max_content_size)(struct libdecor_frame*,int,int);
+typedef void (* PFN_libdecor_frame_set_maximized)(struct libdecor_frame*);
+typedef void (* PFN_libdecor_frame_unset_maximized)(struct libdecor_frame*);
+typedef void (* PFN_libdecor_frame_set_capabilities)(struct libdecor_frame*,enum libdecor_capabilities);
+typedef void (* PFN_libdecor_frame_unset_capabilities)(struct libdecor_frame*,enum libdecor_capabilities);
+typedef void (* PFN_libdecor_frame_set_visibility)(struct libdecor_frame*,bool visible);
+typedef struct xdg_toplevel* (* PFN_libdecor_frame_get_xdg_toplevel)(struct libdecor_frame*);
+typedef bool (* PFN_libdecor_configuration_get_content_size)(struct libdecor_configuration*,struct libdecor_frame*,int*,int*);
+typedef bool (* PFN_libdecor_configuration_get_window_state)(struct libdecor_configuration*,enum libdecor_window_state*);
+typedef struct libdecor_state* (* PFN_libdecor_state_new)(int,int);
+typedef void (* PFN_libdecor_state_free)(struct libdecor_state*);
+#define libdecor_new _glfw.wl.libdecor.libdecor_new_
+#define libdecor_unref _glfw.wl.libdecor.libdecor_unref_
+#define libdecor_get_fd _glfw.wl.libdecor.libdecor_get_fd_
+#define libdecor_dispatch _glfw.wl.libdecor.libdecor_dispatch_
+#define libdecor_decorate _glfw.wl.libdecor.libdecor_decorate_
+#define libdecor_frame_unref _glfw.wl.libdecor.libdecor_frame_unref_
+#define libdecor_frame_set_app_id _glfw.wl.libdecor.libdecor_frame_set_app_id_
+#define libdecor_frame_set_title _glfw.wl.libdecor.libdecor_frame_set_title_
+#define libdecor_frame_set_minimized _glfw.wl.libdecor.libdecor_frame_set_minimized_
+#define libdecor_frame_set_fullscreen _glfw.wl.libdecor.libdecor_frame_set_fullscreen_
+#define libdecor_frame_unset_fullscreen _glfw.wl.libdecor.libdecor_frame_unset_fullscreen_
+#define libdecor_frame_map _glfw.wl.libdecor.libdecor_frame_map_
+#define libdecor_frame_commit _glfw.wl.libdecor.libdecor_frame_commit_
+#define libdecor_frame_set_min_content_size _glfw.wl.libdecor.libdecor_frame_set_min_content_size_
+#define libdecor_frame_set_max_content_size _glfw.wl.libdecor.libdecor_frame_set_max_content_size_
+#define libdecor_frame_set_maximized _glfw.wl.libdecor.libdecor_frame_set_maximized_
+#define libdecor_frame_unset_maximized _glfw.wl.libdecor.libdecor_frame_unset_maximized_
+#define libdecor_frame_set_capabilities _glfw.wl.libdecor.libdecor_frame_set_capabilities_
+#define libdecor_frame_unset_capabilities _glfw.wl.libdecor.libdecor_frame_unset_capabilities_
+#define libdecor_frame_set_visibility _glfw.wl.libdecor.libdecor_frame_set_visibility_
+#define libdecor_frame_get_xdg_toplevel _glfw.wl.libdecor.libdecor_frame_get_xdg_toplevel_
+#define libdecor_configuration_get_content_size _glfw.wl.libdecor.libdecor_configuration_get_content_size_
+#define libdecor_configuration_get_window_state _glfw.wl.libdecor.libdecor_configuration_get_window_state_
+#define libdecor_state_new _glfw.wl.libdecor.libdecor_state_new_
+#define libdecor_state_free _glfw.wl.libdecor.libdecor_state_free_
+
+typedef struct _GLFWfallbackEdgeWayland
+{
+    struct wl_surface*          surface;
+    struct wl_subsurface*       subsurface;
+    struct wp_viewport*         viewport;
+} _GLFWfallbackEdgeWayland;
+
+typedef struct _GLFWofferWayland
+{
+    struct wl_data_offer*       offer;
+    GLFWbool                    text_plain_utf8;
+    GLFWbool                    text_uri_list;
+} _GLFWofferWayland;
+
+typedef struct _GLFWscaleWayland
+{
+    struct wl_output*           output;
+    int32_t                     factor;
+} _GLFWscaleWayland;
+
+// Wayland-specific per-window data
+//
+typedef struct _GLFWwindowWayland
+{
+    int                         width, height;
+    int                         fbWidth, fbHeight;
+    GLFWbool                    visible;
+    GLFWbool                    maximized;
+    GLFWbool                    activated;
+    GLFWbool                    fullscreen;
+    GLFWbool                    hovered;
+    GLFWbool                    transparent;
+    GLFWbool                    scaleFramebuffer;
+    struct wl_surface*          surface;
+    struct wl_callback*         callback;
+
+    struct {
+        struct wl_egl_window*   window;
+    } egl;
+
+    struct {
+        int                     width, height;
+        GLFWbool                maximized;
+        GLFWbool                iconified;
+        GLFWbool                activated;
+        GLFWbool                fullscreen;
+    } pending;
+
+    struct {
+        struct xdg_surface*     surface;
+        struct xdg_toplevel*    toplevel;
+        struct zxdg_toplevel_decoration_v1* decoration;
+        uint32_t                decorationMode;
+    } xdg;
+
+    struct {
+        struct libdecor_frame*  frame;
+    } libdecor;
+
+    _GLFWcursor*                currentCursor;
+    double                      cursorPosX, cursorPosY;
+
+    char*                       appId;
+
+    // We need to track the monitors the window spans on to calculate the
+    // optimal scaling factor.
+    int32_t                     bufferScale;
+    _GLFWscaleWayland*          outputScales;
+    size_t                      outputScaleCount;
+    size_t                      outputScaleSize;
+
+    struct wp_viewport*             scalingViewport;
+    uint32_t                        scalingNumerator;
+    struct wp_fractional_scale_v1*  fractionalScale;
+
+    struct zwp_relative_pointer_v1* relativePointer;
+    struct zwp_locked_pointer_v1*   lockedPointer;
+    struct zwp_confined_pointer_v1* confinedPointer;
+
+    struct zwp_idle_inhibitor_v1*   idleInhibitor;
+    struct xdg_activation_token_v1* activationToken;
+
+    struct {
+        GLFWbool                    decorations;
+        struct wl_buffer*           buffer;
+        _GLFWfallbackEdgeWayland    top, left, right, bottom;
+        struct wl_surface*          focus;
+    } fallback;
+} _GLFWwindowWayland;
+
+// Wayland-specific global data
+//
+typedef struct _GLFWlibraryWayland
+{
+    struct wl_display*          display;
+    struct wl_registry*         registry;
+    struct wl_compositor*       compositor;
+    struct wl_subcompositor*    subcompositor;
+    struct wl_shm*              shm;
+    struct wl_seat*             seat;
+    struct wl_pointer*          pointer;
+    struct wl_keyboard*         keyboard;
+    struct wl_data_device_manager*          dataDeviceManager;
+    struct wl_data_device*      dataDevice;
+    struct xdg_wm_base*         wmBase;
+    struct zxdg_decoration_manager_v1*      decorationManager;
+    struct wp_viewporter*       viewporter;
+    struct zwp_relative_pointer_manager_v1* relativePointerManager;
+    struct zwp_pointer_constraints_v1*      pointerConstraints;
+    struct zwp_idle_inhibit_manager_v1*     idleInhibitManager;
+    struct xdg_activation_v1*               activationManager;
+    struct wp_fractional_scale_manager_v1*  fractionalScaleManager;
+
+    _GLFWofferWayland*          offers;
+    unsigned int                offerCount;
+
+    struct wl_data_offer*       selectionOffer;
+    struct wl_data_source*      selectionSource;
+
+    struct wl_data_offer*       dragOffer;
+    _GLFWwindow*                dragFocus;
+    uint32_t                    dragSerial;
+
+    const char*                 tag;
+
+    struct wl_cursor_theme*     cursorTheme;
+    struct wl_cursor_theme*     cursorThemeHiDPI;
+    struct wl_surface*          cursorSurface;
+    const char*                 cursorPreviousName;
+    int                         cursorTimerfd;
+    uint32_t                    serial;
+    uint32_t                    pointerEnterSerial;
+
+    int                         keyRepeatTimerfd;
+    int32_t                     keyRepeatRate;
+    int32_t                     keyRepeatDelay;
+    int                         keyRepeatScancode;
+
+    char*                       clipboardString;
+    short int                   keycodes[256];
+    short int                   scancodes[GLFW_KEY_LAST + 1];
+    char                        keynames[GLFW_KEY_LAST + 1][5];
+
+    struct {
+        void*                   handle;
+        struct xkb_context*     context;
+        struct xkb_keymap*      keymap;
+        struct xkb_state*       state;
+
+        struct xkb_compose_state* composeState;
+
+        xkb_mod_index_t         controlIndex;
+        xkb_mod_index_t         altIndex;
+        xkb_mod_index_t         shiftIndex;
+        xkb_mod_index_t         superIndex;
+        xkb_mod_index_t         capsLockIndex;
+        xkb_mod_index_t         numLockIndex;
+        unsigned int            modifiers;
+
+        PFN_xkb_context_new context_new;
+        PFN_xkb_context_unref context_unref;
+        PFN_xkb_keymap_new_from_string keymap_new_from_string;
+        PFN_xkb_keymap_unref keymap_unref;
+        PFN_xkb_keymap_mod_get_index keymap_mod_get_index;
+        PFN_xkb_keymap_key_repeats keymap_key_repeats;
+        PFN_xkb_keymap_key_get_syms_by_level keymap_key_get_syms_by_level;
+        PFN_xkb_state_new state_new;
+        PFN_xkb_state_unref state_unref;
+        PFN_xkb_state_key_get_syms state_key_get_syms;
+        PFN_xkb_state_update_mask state_update_mask;
+        PFN_xkb_state_key_get_layout state_key_get_layout;
+        PFN_xkb_state_mod_index_is_active state_mod_index_is_active;
+
+        PFN_xkb_compose_table_new_from_locale compose_table_new_from_locale;
+        PFN_xkb_compose_table_unref compose_table_unref;
+        PFN_xkb_compose_state_new compose_state_new;
+        PFN_xkb_compose_state_unref compose_state_unref;
+        PFN_xkb_compose_state_feed compose_state_feed;
+        PFN_xkb_compose_state_get_status compose_state_get_status;
+        PFN_xkb_compose_state_get_one_sym compose_state_get_one_sym;
+    } xkb;
+
+    _GLFWwindow*                pointerFocus;
+    _GLFWwindow*                keyboardFocus;
+
+    struct {
+        void*                                       handle;
+        PFN_wl_display_flush                        display_flush;
+        PFN_wl_display_cancel_read                  display_cancel_read;
+        PFN_wl_display_dispatch_pending             display_dispatch_pending;
+        PFN_wl_display_read_events                  display_read_events;
+        PFN_wl_display_disconnect                   display_disconnect;
+        PFN_wl_display_roundtrip                    display_roundtrip;
+        PFN_wl_display_get_fd                       display_get_fd;
+        PFN_wl_display_prepare_read                 display_prepare_read;
+        PFN_wl_proxy_marshal                        proxy_marshal;
+        PFN_wl_proxy_add_listener                   proxy_add_listener;
+        PFN_wl_proxy_destroy                        proxy_destroy;
+        PFN_wl_proxy_marshal_constructor            proxy_marshal_constructor;
+        PFN_wl_proxy_marshal_constructor_versioned  proxy_marshal_constructor_versioned;
+        PFN_wl_proxy_get_user_data                  proxy_get_user_data;
+        PFN_wl_proxy_set_user_data                  proxy_set_user_data;
+        PFN_wl_proxy_get_tag                        proxy_get_tag;
+        PFN_wl_proxy_set_tag                        proxy_set_tag;
+        PFN_wl_proxy_get_version                    proxy_get_version;
+        PFN_wl_proxy_marshal_flags                  proxy_marshal_flags;
+    } client;
+
+    struct {
+        void*                   handle;
+
+        PFN_wl_cursor_theme_load theme_load;
+        PFN_wl_cursor_theme_destroy theme_destroy;
+        PFN_wl_cursor_theme_get_cursor theme_get_cursor;
+        PFN_wl_cursor_image_get_buffer image_get_buffer;
+    } cursor;
+
+    struct {
+        void*                   handle;
+
+        PFN_wl_egl_window_create window_create;
+        PFN_wl_egl_window_destroy window_destroy;
+        PFN_wl_egl_window_resize window_resize;
+    } egl;
+
+    struct {
+        void*                   handle;
+        struct libdecor*        context;
+        struct wl_callback*     callback;
+        GLFWbool                ready;
+        PFN_libdecor_new        libdecor_new_;
+        PFN_libdecor_unref      libdecor_unref_;
+        PFN_libdecor_get_fd     libdecor_get_fd_;
+        PFN_libdecor_dispatch   libdecor_dispatch_;
+        PFN_libdecor_decorate   libdecor_decorate_;
+        PFN_libdecor_frame_unref libdecor_frame_unref_;
+        PFN_libdecor_frame_set_app_id libdecor_frame_set_app_id_;
+        PFN_libdecor_frame_set_title libdecor_frame_set_title_;
+        PFN_libdecor_frame_set_minimized libdecor_frame_set_minimized_;
+        PFN_libdecor_frame_set_fullscreen libdecor_frame_set_fullscreen_;
+        PFN_libdecor_frame_unset_fullscreen libdecor_frame_unset_fullscreen_;
+        PFN_libdecor_frame_map libdecor_frame_map_;
+        PFN_libdecor_frame_commit libdecor_frame_commit_;
+        PFN_libdecor_frame_set_min_content_size libdecor_frame_set_min_content_size_;
+        PFN_libdecor_frame_set_max_content_size libdecor_frame_set_max_content_size_;
+        PFN_libdecor_frame_set_maximized libdecor_frame_set_maximized_;
+        PFN_libdecor_frame_unset_maximized libdecor_frame_unset_maximized_;
+        PFN_libdecor_frame_set_capabilities libdecor_frame_set_capabilities_;
+        PFN_libdecor_frame_unset_capabilities libdecor_frame_unset_capabilities_;
+        PFN_libdecor_frame_set_visibility libdecor_frame_set_visibility_;
+        PFN_libdecor_frame_get_xdg_toplevel libdecor_frame_get_xdg_toplevel_;
+        PFN_libdecor_configuration_get_content_size libdecor_configuration_get_content_size_;
+        PFN_libdecor_configuration_get_window_state libdecor_configuration_get_window_state_;
+        PFN_libdecor_state_new libdecor_state_new_;
+        PFN_libdecor_state_free libdecor_state_free_;
+    } libdecor;
+} _GLFWlibraryWayland;
+
+// Wayland-specific per-monitor data
+//
+typedef struct _GLFWmonitorWayland
+{
+    struct wl_output*           output;
+    uint32_t                    name;
+    int                         currentMode;
+
+    int                         x;
+    int                         y;
+    int32_t                     scale;
+} _GLFWmonitorWayland;
+
+// Wayland-specific per-cursor data
+//
+typedef struct _GLFWcursorWayland
+{
+    struct wl_cursor*           cursor;
+    struct wl_cursor*           cursorHiDPI;
+    struct wl_buffer*           buffer;
+    int                         width, height;
+    int                         xhot, yhot;
+    int                         currentImage;
+} _GLFWcursorWayland;
+
+GLFWbool _glfwConnectWayland(int platformID, _GLFWplatform* platform);
+int _glfwInitWayland(void);
+void _glfwTerminateWayland(void);
+
+GLFWbool _glfwCreateWindowWayland(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
+void _glfwDestroyWindowWayland(_GLFWwindow* window);
+void _glfwSetWindowTitleWayland(_GLFWwindow* window, const char* title);
+void _glfwSetWindowIconWayland(_GLFWwindow* window, int count, const GLFWimage* images);
+void _glfwGetWindowPosWayland(_GLFWwindow* window, int* xpos, int* ypos);
+void _glfwSetWindowPosWayland(_GLFWwindow* window, int xpos, int ypos);
+void _glfwGetWindowSizeWayland(_GLFWwindow* window, int* width, int* height);
+void _glfwSetWindowSizeWayland(_GLFWwindow* window, int width, int height);
+void _glfwSetWindowSizeLimitsWayland(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
+void _glfwSetWindowAspectRatioWayland(_GLFWwindow* window, int numer, int denom);
+void _glfwGetFramebufferSizeWayland(_GLFWwindow* window, int* width, int* height);
+void _glfwGetWindowFrameSizeWayland(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
+void _glfwGetWindowContentScaleWayland(_GLFWwindow* window, float* xscale, float* yscale);
+void _glfwIconifyWindowWayland(_GLFWwindow* window);
+void _glfwRestoreWindowWayland(_GLFWwindow* window);
+void _glfwMaximizeWindowWayland(_GLFWwindow* window);
+void _glfwShowWindowWayland(_GLFWwindow* window);
+void _glfwHideWindowWayland(_GLFWwindow* window);
+void _glfwRequestWindowAttentionWayland(_GLFWwindow* window);
+void _glfwFocusWindowWayland(_GLFWwindow* window);
+void _glfwSetWindowMonitorWayland(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
+GLFWbool _glfwWindowFocusedWayland(_GLFWwindow* window);
+GLFWbool _glfwWindowIconifiedWayland(_GLFWwindow* window);
+GLFWbool _glfwWindowVisibleWayland(_GLFWwindow* window);
+GLFWbool _glfwWindowMaximizedWayland(_GLFWwindow* window);
+GLFWbool _glfwWindowHoveredWayland(_GLFWwindow* window);
+GLFWbool _glfwFramebufferTransparentWayland(_GLFWwindow* window);
+void _glfwSetWindowResizableWayland(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowDecoratedWayland(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowFloatingWayland(_GLFWwindow* window, GLFWbool enabled);
+float _glfwGetWindowOpacityWayland(_GLFWwindow* window);
+void _glfwSetWindowOpacityWayland(_GLFWwindow* window, float opacity);
+void _glfwSetWindowMousePassthroughWayland(_GLFWwindow* window, GLFWbool enabled);
+
+void _glfwSetRawMouseMotionWayland(_GLFWwindow* window, GLFWbool enabled);
+GLFWbool _glfwRawMouseMotionSupportedWayland(void);
+
+void _glfwPollEventsWayland(void);
+void _glfwWaitEventsWayland(void);
+void _glfwWaitEventsTimeoutWayland(double timeout);
+void _glfwPostEmptyEventWayland(void);
+
+void _glfwGetCursorPosWayland(_GLFWwindow* window, double* xpos, double* ypos);
+void _glfwSetCursorPosWayland(_GLFWwindow* window, double xpos, double ypos);
+void _glfwSetCursorModeWayland(_GLFWwindow* window, int mode);
+const char* _glfwGetScancodeNameWayland(int scancode);
+int _glfwGetKeyScancodeWayland(int key);
+GLFWbool _glfwCreateCursorWayland(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot);
+GLFWbool _glfwCreateStandardCursorWayland(_GLFWcursor* cursor, int shape);
+void _glfwDestroyCursorWayland(_GLFWcursor* cursor);
+void _glfwSetCursorWayland(_GLFWwindow* window, _GLFWcursor* cursor);
+void _glfwSetClipboardStringWayland(const char* string);
+const char* _glfwGetClipboardStringWayland(void);
+
+EGLenum _glfwGetEGLPlatformWayland(EGLint** attribs);
+EGLNativeDisplayType _glfwGetEGLNativeDisplayWayland(void);
+EGLNativeWindowType _glfwGetEGLNativeWindowWayland(_GLFWwindow* window);
+
+void _glfwGetRequiredInstanceExtensionsWayland(char** extensions);
+GLFWbool _glfwGetPhysicalDevicePresentationSupportWayland(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
+VkResult _glfwCreateWindowSurfaceWayland(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
+
+void _glfwFreeMonitorWayland(_GLFWmonitor* monitor);
+void _glfwGetMonitorPosWayland(_GLFWmonitor* monitor, int* xpos, int* ypos);
+void _glfwGetMonitorContentScaleWayland(_GLFWmonitor* monitor, float* xscale, float* yscale);
+void _glfwGetMonitorWorkareaWayland(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
+GLFWvidmode* _glfwGetVideoModesWayland(_GLFWmonitor* monitor, int* count);
+GLFWbool _glfwGetVideoModeWayland(_GLFWmonitor* monitor, GLFWvidmode* mode);
+GLFWbool _glfwGetGammaRampWayland(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
+void _glfwSetGammaRampWayland(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
+
+void _glfwAddOutputWayland(uint32_t name, uint32_t version);
+void _glfwUpdateBufferScaleFromOutputsWayland(_GLFWwindow* window);
+
+void _glfwAddSeatListenerWayland(struct wl_seat* seat);
+void _glfwAddDataDeviceListenerWayland(struct wl_data_device* device);
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wl_window.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wl_window.c
new file mode 100644
index 000000000000..2e842aaaac3c
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/wl_window.c
@@ -0,0 +1,3318 @@
+//========================================================================
+// GLFW 3.5 Wayland - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define _GNU_SOURCE
+
+#include "internal.h"
+
+#if defined(_GLFW_WAYLAND)
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <assert.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/timerfd.h>
+#include <poll.h>
+#include <linux/input-event-codes.h>
+
+#include "wayland-client-protocol.h"
+#include "xdg-shell-client-protocol.h"
+#include "xdg-decoration-unstable-v1-client-protocol.h"
+#include "viewporter-client-protocol.h"
+#include "relative-pointer-unstable-v1-client-protocol.h"
+#include "pointer-constraints-unstable-v1-client-protocol.h"
+#include "xdg-activation-v1-client-protocol.h"
+#include "idle-inhibit-unstable-v1-client-protocol.h"
+#include "fractional-scale-v1-client-protocol.h"
+
+#define GLFW_BORDER_SIZE    4
+#define GLFW_CAPTION_HEIGHT 24
+
+static int createTmpfileCloexec(char* tmpname)
+{
+    int fd;
+
+    fd = mkostemp(tmpname, O_CLOEXEC);
+    if (fd >= 0)
+        unlink(tmpname);
+
+    return fd;
+}
+
+/*
+ * Create a new, unique, anonymous file of the given size, and
+ * return the file descriptor for it. The file descriptor is set
+ * CLOEXEC. The file is immediately suitable for mmap()'ing
+ * the given size at offset zero.
+ *
+ * The file should not have a permanent backing store like a disk,
+ * but may have if XDG_RUNTIME_DIR is not properly implemented in OS.
+ *
+ * The file name is deleted from the file system.
+ *
+ * The file is suitable for buffer sharing between processes by
+ * transmitting the file descriptor over Unix sockets using the
+ * SCM_RIGHTS methods.
+ *
+ * posix_fallocate() is used to guarantee that disk space is available
+ * for the file at the given size. If disk space is insufficient, errno
+ * is set to ENOSPC. If posix_fallocate() is not supported, program may
+ * receive SIGBUS on accessing mmap()'ed file contents instead.
+ */
+static int createAnonymousFile(off_t size)
+{
+    static const char template[] = "/glfw-shared-XXXXXX";
+    const char* path;
+    char* name;
+    int fd;
+    int ret;
+
+#ifdef HAVE_MEMFD_CREATE
+    fd = memfd_create("glfw-shared", MFD_CLOEXEC | MFD_ALLOW_SEALING);
+    if (fd >= 0)
+    {
+        // We can add this seal before calling posix_fallocate(), as the file
+        // is currently zero-sized anyway.
+        //
+        // There is also no need to check for the return value, we couldn’t do
+        // anything with it anyway.
+        fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_SEAL);
+    }
+    else
+#elif defined(SHM_ANON)
+    fd = shm_open(SHM_ANON, O_RDWR | O_CLOEXEC, 0600);
+    if (fd < 0)
+#endif
+    {
+        path = getenv("XDG_RUNTIME_DIR");
+        if (!path)
+        {
+            errno = ENOENT;
+            return -1;
+        }
+
+        name = _glfw_calloc(strlen(path) + sizeof(template), 1);
+        strcpy(name, path);
+        strcat(name, template);
+
+        fd = createTmpfileCloexec(name);
+        _glfw_free(name);
+        if (fd < 0)
+            return -1;
+    }
+
+#if defined(SHM_ANON)
+    // posix_fallocate does not work on SHM descriptors
+    ret = ftruncate(fd, size);
+#else
+    ret = posix_fallocate(fd, 0, size);
+#endif
+    if (ret != 0)
+    {
+        close(fd);
+        errno = ret;
+        return -1;
+    }
+    return fd;
+}
+
+static struct wl_buffer* createShmBuffer(const GLFWimage* image)
+{
+    const int stride = image->width * 4;
+    const int length = image->width * image->height * 4;
+
+    const int fd = createAnonymousFile(length);
+    if (fd < 0)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to create buffer file of size %d: %s",
+                        length, strerror(errno));
+        return NULL;
+    }
+
+    void* data = mmap(NULL, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+    if (data == MAP_FAILED)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to map file: %s", strerror(errno));
+        close(fd);
+        return NULL;
+    }
+
+    struct wl_shm_pool* pool = wl_shm_create_pool(_glfw.wl.shm, fd, length);
+
+    close(fd);
+
+    unsigned char* source = (unsigned char*) image->pixels;
+    unsigned char* target = data;
+    for (int i = 0;  i < image->width * image->height;  i++, source += 4)
+    {
+        unsigned int alpha = source[3];
+
+        *target++ = (unsigned char) ((source[2] * alpha) / 255);
+        *target++ = (unsigned char) ((source[1] * alpha) / 255);
+        *target++ = (unsigned char) ((source[0] * alpha) / 255);
+        *target++ = (unsigned char) alpha;
+    }
+
+    struct wl_buffer* buffer =
+        wl_shm_pool_create_buffer(pool, 0,
+                                  image->width,
+                                  image->height,
+                                  stride, WL_SHM_FORMAT_ARGB8888);
+    munmap(data, length);
+    wl_shm_pool_destroy(pool);
+
+    return buffer;
+}
+
+static void createFallbackEdge(_GLFWwindow* window,
+                               _GLFWfallbackEdgeWayland* edge,
+                               struct wl_surface* parent,
+                               struct wl_buffer* buffer,
+                               int x, int y,
+                               int width, int height)
+{
+    edge->surface = wl_compositor_create_surface(_glfw.wl.compositor);
+    wl_surface_set_user_data(edge->surface, window);
+    wl_proxy_set_tag((struct wl_proxy*) edge->surface, &_glfw.wl.tag);
+    edge->subsurface = wl_subcompositor_get_subsurface(_glfw.wl.subcompositor,
+                                                       edge->surface, parent);
+    wl_subsurface_set_position(edge->subsurface, x, y);
+    edge->viewport = wp_viewporter_get_viewport(_glfw.wl.viewporter,
+                                                edge->surface);
+    wp_viewport_set_destination(edge->viewport, width, height);
+    wl_surface_attach(edge->surface, buffer, 0, 0);
+
+    struct wl_region* region = wl_compositor_create_region(_glfw.wl.compositor);
+    wl_region_add(region, 0, 0, width, height);
+    wl_surface_set_opaque_region(edge->surface, region);
+    wl_surface_commit(edge->surface);
+    wl_region_destroy(region);
+}
+
+static void createFallbackDecorations(_GLFWwindow* window)
+{
+    unsigned char data[] = { 224, 224, 224, 255 };
+    const GLFWimage image = { 1, 1, data };
+
+    if (!_glfw.wl.viewporter)
+        return;
+
+    if (!window->wl.fallback.buffer)
+        window->wl.fallback.buffer = createShmBuffer(&image);
+    if (!window->wl.fallback.buffer)
+        return;
+
+    createFallbackEdge(window, &window->wl.fallback.top, window->wl.surface,
+                       window->wl.fallback.buffer,
+                       0, -GLFW_CAPTION_HEIGHT,
+                       window->wl.width, GLFW_CAPTION_HEIGHT);
+    createFallbackEdge(window, &window->wl.fallback.left, window->wl.surface,
+                       window->wl.fallback.buffer,
+                       -GLFW_BORDER_SIZE, -GLFW_CAPTION_HEIGHT,
+                       GLFW_BORDER_SIZE, window->wl.height + GLFW_CAPTION_HEIGHT);
+    createFallbackEdge(window, &window->wl.fallback.right, window->wl.surface,
+                       window->wl.fallback.buffer,
+                       window->wl.width, -GLFW_CAPTION_HEIGHT,
+                       GLFW_BORDER_SIZE, window->wl.height + GLFW_CAPTION_HEIGHT);
+    createFallbackEdge(window, &window->wl.fallback.bottom, window->wl.surface,
+                       window->wl.fallback.buffer,
+                       -GLFW_BORDER_SIZE, window->wl.height,
+                       window->wl.width + GLFW_BORDER_SIZE * 2, GLFW_BORDER_SIZE);
+
+    window->wl.fallback.decorations = GLFW_TRUE;
+}
+
+static void destroyFallbackEdge(_GLFWfallbackEdgeWayland* edge)
+{
+    if (edge->subsurface)
+        wl_subsurface_destroy(edge->subsurface);
+    if (edge->surface)
+        wl_surface_destroy(edge->surface);
+    if (edge->viewport)
+        wp_viewport_destroy(edge->viewport);
+
+    edge->surface = NULL;
+    edge->subsurface = NULL;
+    edge->viewport = NULL;
+}
+
+static void destroyFallbackDecorations(_GLFWwindow* window)
+{
+    window->wl.fallback.decorations = GLFW_FALSE;
+
+    destroyFallbackEdge(&window->wl.fallback.top);
+    destroyFallbackEdge(&window->wl.fallback.left);
+    destroyFallbackEdge(&window->wl.fallback.right);
+    destroyFallbackEdge(&window->wl.fallback.bottom);
+}
+
+static void xdgDecorationHandleConfigure(void* userData,
+                                         struct zxdg_toplevel_decoration_v1* decoration,
+                                         uint32_t mode)
+{
+    _GLFWwindow* window = userData;
+
+    window->wl.xdg.decorationMode = mode;
+
+    if (mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE)
+    {
+        if (window->decorated && !window->monitor)
+            createFallbackDecorations(window);
+    }
+    else
+        destroyFallbackDecorations(window);
+}
+
+static const struct zxdg_toplevel_decoration_v1_listener xdgDecorationListener =
+{
+    xdgDecorationHandleConfigure,
+};
+
+// Makes the surface considered as XRGB instead of ARGB.
+static void setContentAreaOpaque(_GLFWwindow* window)
+{
+    struct wl_region* region;
+
+    region = wl_compositor_create_region(_glfw.wl.compositor);
+    if (!region)
+        return;
+
+    wl_region_add(region, 0, 0, window->wl.width, window->wl.height);
+    wl_surface_set_opaque_region(window->wl.surface, region);
+    wl_region_destroy(region);
+}
+
+static void resizeFramebuffer(_GLFWwindow* window)
+{
+    if (window->wl.fractionalScale)
+    {
+        window->wl.fbWidth = (window->wl.width * window->wl.scalingNumerator) / 120;
+        window->wl.fbHeight = (window->wl.height * window->wl.scalingNumerator) / 120;
+    }
+    else
+    {
+        window->wl.fbWidth = window->wl.width * window->wl.bufferScale;
+        window->wl.fbHeight = window->wl.height * window->wl.bufferScale;
+    }
+
+    if (window->wl.egl.window)
+    {
+        wl_egl_window_resize(window->wl.egl.window,
+                             window->wl.fbWidth,
+                             window->wl.fbHeight,
+                             0, 0);
+    }
+
+    if (!window->wl.transparent)
+        setContentAreaOpaque(window);
+
+    _glfwInputFramebufferSize(window, window->wl.fbWidth, window->wl.fbHeight);
+}
+
+static GLFWbool resizeWindow(_GLFWwindow* window, int width, int height)
+{
+    width = _glfw_max(width, 1);
+    height = _glfw_max(height, 1);
+
+    if (width == window->wl.width && height == window->wl.height)
+        return GLFW_FALSE;
+
+    window->wl.width = width;
+    window->wl.height = height;
+
+    resizeFramebuffer(window);
+
+    if (window->wl.scalingViewport)
+    {
+        wp_viewport_set_destination(window->wl.scalingViewport,
+                                    window->wl.width,
+                                    window->wl.height);
+    }
+
+    if (window->wl.fallback.decorations)
+    {
+        wp_viewport_set_destination(window->wl.fallback.top.viewport,
+                                    window->wl.width,
+                                    GLFW_CAPTION_HEIGHT);
+        wl_surface_commit(window->wl.fallback.top.surface);
+
+        wp_viewport_set_destination(window->wl.fallback.left.viewport,
+                                    GLFW_BORDER_SIZE,
+                                    window->wl.height + GLFW_CAPTION_HEIGHT);
+        wl_surface_commit(window->wl.fallback.left.surface);
+
+        wl_subsurface_set_position(window->wl.fallback.right.subsurface,
+                                window->wl.width, -GLFW_CAPTION_HEIGHT);
+        wp_viewport_set_destination(window->wl.fallback.right.viewport,
+                                    GLFW_BORDER_SIZE,
+                                    window->wl.height + GLFW_CAPTION_HEIGHT);
+        wl_surface_commit(window->wl.fallback.right.surface);
+
+        wl_subsurface_set_position(window->wl.fallback.bottom.subsurface,
+                                -GLFW_BORDER_SIZE, window->wl.height);
+        wp_viewport_set_destination(window->wl.fallback.bottom.viewport,
+                                    window->wl.width + GLFW_BORDER_SIZE * 2,
+                                    GLFW_BORDER_SIZE);
+        wl_surface_commit(window->wl.fallback.bottom.surface);
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwUpdateBufferScaleFromOutputsWayland(_GLFWwindow* window)
+{
+    if (wl_compositor_get_version(_glfw.wl.compositor) <
+        WL_SURFACE_SET_BUFFER_SCALE_SINCE_VERSION)
+    {
+        return;
+    }
+
+    if (!window->wl.scaleFramebuffer)
+        return;
+
+    // When using fractional scaling, the buffer scale should remain at 1
+    if (window->wl.fractionalScale)
+        return;
+
+    // Get the scale factor from the highest scale monitor.
+    int32_t maxScale = 1;
+
+    for (size_t i = 0; i < window->wl.outputScaleCount; i++)
+        maxScale = _glfw_max(window->wl.outputScales[i].factor, maxScale);
+
+    // Only change the framebuffer size if the scale changed.
+    if (window->wl.bufferScale != maxScale)
+    {
+        window->wl.bufferScale = maxScale;
+        wl_surface_set_buffer_scale(window->wl.surface, maxScale);
+        _glfwInputWindowContentScale(window, maxScale, maxScale);
+        resizeFramebuffer(window);
+
+        if (window->wl.visible)
+            _glfwInputWindowDamage(window);
+    }
+}
+
+static void surfaceHandleEnter(void* userData,
+                               struct wl_surface* surface,
+                               struct wl_output* output)
+{
+    if (wl_proxy_get_tag((struct wl_proxy*) output) != &_glfw.wl.tag)
+        return;
+
+    _GLFWwindow* window = userData;
+    _GLFWmonitor* monitor = wl_output_get_user_data(output);
+    if (!window || !monitor)
+        return;
+
+    if (window->wl.outputScaleCount + 1 > window->wl.outputScaleSize)
+    {
+        window->wl.outputScaleSize++;
+        window->wl.outputScales =
+            _glfw_realloc(window->wl.outputScales,
+                          window->wl.outputScaleSize * sizeof(_GLFWscaleWayland));
+    }
+
+    window->wl.outputScaleCount++;
+    window->wl.outputScales[window->wl.outputScaleCount - 1] =
+        (_GLFWscaleWayland) { output, monitor->wl.scale };
+
+    _glfwUpdateBufferScaleFromOutputsWayland(window);
+}
+
+static void surfaceHandleLeave(void* userData,
+                               struct wl_surface* surface,
+                               struct wl_output* output)
+{
+    if (wl_proxy_get_tag((struct wl_proxy*) output) != &_glfw.wl.tag)
+        return;
+
+    _GLFWwindow* window = userData;
+
+    for (size_t i = 0; i < window->wl.outputScaleCount; i++)
+    {
+        if (window->wl.outputScales[i].output == output)
+        {
+            window->wl.outputScales[i] =
+                window->wl.outputScales[window->wl.outputScaleCount - 1];
+            window->wl.outputScaleCount--;
+            break;
+        }
+    }
+
+    _glfwUpdateBufferScaleFromOutputsWayland(window);
+}
+
+static const struct wl_surface_listener surfaceListener =
+{
+    surfaceHandleEnter,
+    surfaceHandleLeave
+};
+
+static void setIdleInhibitor(_GLFWwindow* window, GLFWbool enable)
+{
+    if (enable && !window->wl.idleInhibitor && _glfw.wl.idleInhibitManager)
+    {
+        window->wl.idleInhibitor =
+            zwp_idle_inhibit_manager_v1_create_inhibitor(
+                _glfw.wl.idleInhibitManager, window->wl.surface);
+        if (!window->wl.idleInhibitor)
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Wayland: Failed to create idle inhibitor");
+    }
+    else if (!enable && window->wl.idleInhibitor)
+    {
+        zwp_idle_inhibitor_v1_destroy(window->wl.idleInhibitor);
+        window->wl.idleInhibitor = NULL;
+    }
+}
+
+// Make the specified window and its video mode active on its monitor
+//
+static void acquireMonitor(_GLFWwindow* window)
+{
+    if (window->wl.libdecor.frame)
+    {
+        libdecor_frame_set_fullscreen(window->wl.libdecor.frame,
+                                      window->monitor->wl.output);
+    }
+    else if (window->wl.xdg.toplevel)
+    {
+        xdg_toplevel_set_fullscreen(window->wl.xdg.toplevel,
+                                    window->monitor->wl.output);
+    }
+
+    setIdleInhibitor(window, GLFW_TRUE);
+
+    if (window->wl.fallback.decorations)
+        destroyFallbackDecorations(window);
+}
+
+// Remove the window and restore the original video mode
+//
+static void releaseMonitor(_GLFWwindow* window)
+{
+    if (window->wl.libdecor.frame)
+        libdecor_frame_unset_fullscreen(window->wl.libdecor.frame);
+    else if (window->wl.xdg.toplevel)
+        xdg_toplevel_unset_fullscreen(window->wl.xdg.toplevel);
+
+    setIdleInhibitor(window, GLFW_FALSE);
+
+    if (!window->wl.libdecor.frame &&
+        window->wl.xdg.decorationMode != ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE)
+    {
+        if (window->decorated)
+            createFallbackDecorations(window);
+    }
+}
+
+void fractionalScaleHandlePreferredScale(void* userData,
+                                         struct wp_fractional_scale_v1* fractionalScale,
+                                         uint32_t numerator)
+{
+    _GLFWwindow* window = userData;
+
+    window->wl.scalingNumerator = numerator;
+    _glfwInputWindowContentScale(window, numerator / 120.f, numerator / 120.f);
+    resizeFramebuffer(window);
+
+    if (window->wl.visible)
+        _glfwInputWindowDamage(window);
+}
+
+const struct wp_fractional_scale_v1_listener fractionalScaleListener =
+{
+    fractionalScaleHandlePreferredScale,
+};
+
+static void xdgToplevelHandleConfigure(void* userData,
+                                       struct xdg_toplevel* toplevel,
+                                       int32_t width,
+                                       int32_t height,
+                                       struct wl_array* states)
+{
+    _GLFWwindow* window = userData;
+    uint32_t* state;
+
+    window->wl.pending.activated  = GLFW_FALSE;
+    window->wl.pending.maximized  = GLFW_FALSE;
+    window->wl.pending.fullscreen = GLFW_FALSE;
+
+    wl_array_for_each(state, states)
+    {
+        switch (*state)
+        {
+            case XDG_TOPLEVEL_STATE_MAXIMIZED:
+                window->wl.pending.maximized = GLFW_TRUE;
+                break;
+            case XDG_TOPLEVEL_STATE_FULLSCREEN:
+                window->wl.pending.fullscreen = GLFW_TRUE;
+                break;
+            case XDG_TOPLEVEL_STATE_RESIZING:
+                break;
+            case XDG_TOPLEVEL_STATE_ACTIVATED:
+                window->wl.pending.activated = GLFW_TRUE;
+                break;
+        }
+    }
+
+    if (width && height)
+    {
+        if (window->wl.fallback.decorations)
+        {
+            window->wl.pending.width  = _glfw_max(0, width - GLFW_BORDER_SIZE * 2);
+            window->wl.pending.height =
+                _glfw_max(0, height - GLFW_BORDER_SIZE - GLFW_CAPTION_HEIGHT);
+        }
+        else
+        {
+            window->wl.pending.width  = width;
+            window->wl.pending.height = height;
+        }
+    }
+    else
+    {
+        window->wl.pending.width  = window->wl.width;
+        window->wl.pending.height = window->wl.height;
+    }
+}
+
+static void xdgToplevelHandleClose(void* userData,
+                                   struct xdg_toplevel* toplevel)
+{
+    _GLFWwindow* window = userData;
+    _glfwInputWindowCloseRequest(window);
+}
+
+static const struct xdg_toplevel_listener xdgToplevelListener =
+{
+    xdgToplevelHandleConfigure,
+    xdgToplevelHandleClose
+};
+
+static void xdgSurfaceHandleConfigure(void* userData,
+                                      struct xdg_surface* surface,
+                                      uint32_t serial)
+{
+    _GLFWwindow* window = userData;
+
+    xdg_surface_ack_configure(surface, serial);
+
+    if (window->wl.activated != window->wl.pending.activated)
+    {
+        window->wl.activated = window->wl.pending.activated;
+        if (!window->wl.activated)
+        {
+            if (window->monitor && window->autoIconify)
+                xdg_toplevel_set_minimized(window->wl.xdg.toplevel);
+        }
+    }
+
+    if (window->wl.maximized != window->wl.pending.maximized)
+    {
+        window->wl.maximized = window->wl.pending.maximized;
+        _glfwInputWindowMaximize(window, window->wl.maximized);
+    }
+
+    window->wl.fullscreen = window->wl.pending.fullscreen;
+
+    int width  = window->wl.pending.width;
+    int height = window->wl.pending.height;
+
+    if (!window->wl.maximized && !window->wl.fullscreen)
+    {
+        if (window->numer != GLFW_DONT_CARE && window->denom != GLFW_DONT_CARE)
+        {
+            const float aspectRatio = (float) width / (float) height;
+            const float targetRatio = (float) window->numer / (float) window->denom;
+            if (aspectRatio < targetRatio)
+                height = width / targetRatio;
+            else if (aspectRatio > targetRatio)
+                width = height * targetRatio;
+        }
+    }
+
+    if (resizeWindow(window, width, height))
+    {
+        _glfwInputWindowSize(window, window->wl.width, window->wl.height);
+
+        if (window->wl.visible)
+            _glfwInputWindowDamage(window);
+    }
+
+    if (!window->wl.visible)
+    {
+        // Allow the window to be mapped only if it either has no XDG
+        // decorations or they have already received a configure event
+        if (!window->wl.xdg.decoration || window->wl.xdg.decorationMode)
+        {
+            window->wl.visible = GLFW_TRUE;
+            _glfwInputWindowDamage(window);
+        }
+    }
+}
+
+static const struct xdg_surface_listener xdgSurfaceListener =
+{
+    xdgSurfaceHandleConfigure
+};
+
+void libdecorFrameHandleConfigure(struct libdecor_frame* frame,
+                                  struct libdecor_configuration* config,
+                                  void* userData)
+{
+    _GLFWwindow* window = userData;
+    int width, height;
+
+    enum libdecor_window_state windowState;
+    GLFWbool fullscreen, activated, maximized;
+
+    if (libdecor_configuration_get_window_state(config, &windowState))
+    {
+        fullscreen = (windowState & LIBDECOR_WINDOW_STATE_FULLSCREEN) != 0;
+        activated = (windowState & LIBDECOR_WINDOW_STATE_ACTIVE) != 0;
+        maximized = (windowState & LIBDECOR_WINDOW_STATE_MAXIMIZED) != 0;
+    }
+    else
+    {
+        fullscreen = window->wl.fullscreen;
+        activated = window->wl.activated;
+        maximized = window->wl.maximized;
+    }
+
+    if (!libdecor_configuration_get_content_size(config, frame, &width, &height))
+    {
+        width = window->wl.width;
+        height = window->wl.height;
+    }
+
+    if (!maximized && !fullscreen)
+    {
+        if (window->numer != GLFW_DONT_CARE && window->denom != GLFW_DONT_CARE)
+        {
+            const float aspectRatio = (float) width / (float) height;
+            const float targetRatio = (float) window->numer / (float) window->denom;
+            if (aspectRatio < targetRatio)
+                height = width / targetRatio;
+            else if (aspectRatio > targetRatio)
+                width = height * targetRatio;
+        }
+    }
+
+    struct libdecor_state* frameState = libdecor_state_new(width, height);
+    libdecor_frame_commit(frame, frameState, config);
+    libdecor_state_free(frameState);
+
+    if (window->wl.activated != activated)
+    {
+        window->wl.activated = activated;
+        if (!window->wl.activated)
+        {
+            if (window->monitor && window->autoIconify)
+                libdecor_frame_set_minimized(window->wl.libdecor.frame);
+        }
+    }
+
+    if (window->wl.maximized != maximized)
+    {
+        window->wl.maximized = maximized;
+        _glfwInputWindowMaximize(window, window->wl.maximized);
+    }
+
+    window->wl.fullscreen = fullscreen;
+
+    GLFWbool damaged = GLFW_FALSE;
+
+    if (!window->wl.visible)
+    {
+        window->wl.visible = GLFW_TRUE;
+        damaged = GLFW_TRUE;
+    }
+
+    if (resizeWindow(window, width, height))
+    {
+        _glfwInputWindowSize(window, window->wl.width, window->wl.height);
+        damaged = GLFW_TRUE;
+    }
+
+    if (damaged)
+        _glfwInputWindowDamage(window);
+    else
+        wl_surface_commit(window->wl.surface);
+}
+
+void libdecorFrameHandleClose(struct libdecor_frame* frame, void* userData)
+{
+    _GLFWwindow* window = userData;
+    _glfwInputWindowCloseRequest(window);
+}
+
+void libdecorFrameHandleCommit(struct libdecor_frame* frame, void* userData)
+{
+    _GLFWwindow* window = userData;
+    wl_surface_commit(window->wl.surface);
+}
+
+void libdecorFrameHandleDismissPopup(struct libdecor_frame* frame,
+                                     const char* seatName,
+                                     void* userData)
+{
+}
+
+static const struct libdecor_frame_interface libdecorFrameInterface =
+{
+    libdecorFrameHandleConfigure,
+    libdecorFrameHandleClose,
+    libdecorFrameHandleCommit,
+    libdecorFrameHandleDismissPopup
+};
+
+static GLFWbool createLibdecorFrame(_GLFWwindow* window)
+{
+    // Allow libdecor to finish initialization of itself and its plugin
+    while (!_glfw.wl.libdecor.ready)
+        _glfwWaitEventsWayland();
+
+    window->wl.libdecor.frame = libdecor_decorate(_glfw.wl.libdecor.context,
+                                                  window->wl.surface,
+                                                  &libdecorFrameInterface,
+                                                  window);
+    if (!window->wl.libdecor.frame)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to create libdecor frame");
+        return GLFW_FALSE;
+    }
+
+    struct libdecor_state* frameState =
+        libdecor_state_new(window->wl.width, window->wl.height);
+    libdecor_frame_commit(window->wl.libdecor.frame, frameState, NULL);
+    libdecor_state_free(frameState);
+
+    if (strlen(window->wl.appId))
+        libdecor_frame_set_app_id(window->wl.libdecor.frame, window->wl.appId);
+
+    libdecor_frame_set_title(window->wl.libdecor.frame, window->title);
+
+    if (window->minwidth != GLFW_DONT_CARE &&
+        window->minheight != GLFW_DONT_CARE)
+    {
+        libdecor_frame_set_min_content_size(window->wl.libdecor.frame,
+                                            window->minwidth,
+                                            window->minheight);
+    }
+
+    if (window->maxwidth != GLFW_DONT_CARE &&
+        window->maxheight != GLFW_DONT_CARE)
+    {
+        libdecor_frame_set_max_content_size(window->wl.libdecor.frame,
+                                            window->maxwidth,
+                                            window->maxheight);
+    }
+
+    if (!window->resizable)
+    {
+        libdecor_frame_unset_capabilities(window->wl.libdecor.frame,
+                                          LIBDECOR_ACTION_RESIZE);
+    }
+
+    if (window->monitor)
+    {
+        libdecor_frame_set_fullscreen(window->wl.libdecor.frame,
+                                      window->monitor->wl.output);
+        setIdleInhibitor(window, GLFW_TRUE);
+    }
+    else
+    {
+        if (window->wl.maximized)
+            libdecor_frame_set_maximized(window->wl.libdecor.frame);
+
+        if (!window->decorated)
+            libdecor_frame_set_visibility(window->wl.libdecor.frame, false);
+
+        setIdleInhibitor(window, GLFW_FALSE);
+    }
+
+    libdecor_frame_map(window->wl.libdecor.frame);
+    wl_display_roundtrip(_glfw.wl.display);
+    return GLFW_TRUE;
+}
+
+static void updateXdgSizeLimits(_GLFWwindow* window)
+{
+    int minwidth, minheight, maxwidth, maxheight;
+
+    if (window->resizable)
+    {
+        if (window->minwidth == GLFW_DONT_CARE || window->minheight == GLFW_DONT_CARE)
+            minwidth = minheight = 0;
+        else
+        {
+            minwidth  = window->minwidth;
+            minheight = window->minheight;
+
+            if (window->wl.fallback.decorations)
+            {
+                minwidth  += GLFW_BORDER_SIZE * 2;
+                minheight += GLFW_CAPTION_HEIGHT + GLFW_BORDER_SIZE;
+            }
+        }
+
+        if (window->maxwidth == GLFW_DONT_CARE || window->maxheight == GLFW_DONT_CARE)
+            maxwidth = maxheight = 0;
+        else
+        {
+            maxwidth  = window->maxwidth;
+            maxheight = window->maxheight;
+
+            if (window->wl.fallback.decorations)
+            {
+                maxwidth  += GLFW_BORDER_SIZE * 2;
+                maxheight += GLFW_CAPTION_HEIGHT + GLFW_BORDER_SIZE;
+            }
+        }
+    }
+    else
+    {
+        minwidth = maxwidth = window->wl.width;
+        minheight = maxheight = window->wl.height;
+    }
+
+    xdg_toplevel_set_min_size(window->wl.xdg.toplevel, minwidth, minheight);
+    xdg_toplevel_set_max_size(window->wl.xdg.toplevel, maxwidth, maxheight);
+}
+
+static GLFWbool createXdgShellObjects(_GLFWwindow* window)
+{
+    window->wl.xdg.surface = xdg_wm_base_get_xdg_surface(_glfw.wl.wmBase,
+                                                         window->wl.surface);
+    if (!window->wl.xdg.surface)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to create xdg-surface for window");
+        return GLFW_FALSE;
+    }
+
+    xdg_surface_add_listener(window->wl.xdg.surface, &xdgSurfaceListener, window);
+
+    window->wl.xdg.toplevel = xdg_surface_get_toplevel(window->wl.xdg.surface);
+    if (!window->wl.xdg.toplevel)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to create xdg-toplevel for window");
+        return GLFW_FALSE;
+    }
+
+    xdg_toplevel_add_listener(window->wl.xdg.toplevel, &xdgToplevelListener, window);
+
+    if (window->wl.appId)
+        xdg_toplevel_set_app_id(window->wl.xdg.toplevel, window->wl.appId);
+
+    xdg_toplevel_set_title(window->wl.xdg.toplevel, window->title);
+
+    if (window->monitor)
+    {
+        xdg_toplevel_set_fullscreen(window->wl.xdg.toplevel, window->monitor->wl.output);
+        setIdleInhibitor(window, GLFW_TRUE);
+    }
+    else
+    {
+        if (window->wl.maximized)
+            xdg_toplevel_set_maximized(window->wl.xdg.toplevel);
+
+        setIdleInhibitor(window, GLFW_FALSE);
+    }
+
+    if (_glfw.wl.decorationManager)
+    {
+        window->wl.xdg.decoration =
+            zxdg_decoration_manager_v1_get_toplevel_decoration(
+                _glfw.wl.decorationManager, window->wl.xdg.toplevel);
+        zxdg_toplevel_decoration_v1_add_listener(window->wl.xdg.decoration,
+                                                 &xdgDecorationListener,
+                                                 window);
+
+        uint32_t mode;
+
+        if (window->decorated)
+            mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE;
+        else
+            mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE;
+
+        zxdg_toplevel_decoration_v1_set_mode(window->wl.xdg.decoration, mode);
+    }
+    else
+    {
+        if (window->decorated && !window->monitor)
+            createFallbackDecorations(window);
+    }
+
+    updateXdgSizeLimits(window);
+
+    wl_surface_commit(window->wl.surface);
+    wl_display_roundtrip(_glfw.wl.display);
+    return GLFW_TRUE;
+}
+
+static GLFWbool createShellObjects(_GLFWwindow* window)
+{
+    if (_glfw.wl.libdecor.context)
+    {
+        if (createLibdecorFrame(window))
+            return GLFW_TRUE;
+    }
+
+    return createXdgShellObjects(window);
+}
+
+static void destroyShellObjects(_GLFWwindow* window)
+{
+    destroyFallbackDecorations(window);
+
+    if (window->wl.libdecor.frame)
+        libdecor_frame_unref(window->wl.libdecor.frame);
+
+    if (window->wl.xdg.decoration)
+        zxdg_toplevel_decoration_v1_destroy(window->wl.xdg.decoration);
+
+    if (window->wl.xdg.toplevel)
+        xdg_toplevel_destroy(window->wl.xdg.toplevel);
+
+    if (window->wl.xdg.surface)
+        xdg_surface_destroy(window->wl.xdg.surface);
+
+    window->wl.libdecor.frame = NULL;
+    window->wl.xdg.decoration = NULL;
+    window->wl.xdg.decorationMode = 0;
+    window->wl.xdg.toplevel = NULL;
+    window->wl.xdg.surface = NULL;
+}
+
+static GLFWbool createNativeSurface(_GLFWwindow* window,
+                                    const _GLFWwndconfig* wndconfig,
+                                    const _GLFWfbconfig* fbconfig)
+{
+    window->wl.surface = wl_compositor_create_surface(_glfw.wl.compositor);
+    if (!window->wl.surface)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Wayland: Failed to create window surface");
+        return GLFW_FALSE;
+    }
+
+    wl_proxy_set_tag((struct wl_proxy*) window->wl.surface, &_glfw.wl.tag);
+    wl_surface_add_listener(window->wl.surface,
+                            &surfaceListener,
+                            window);
+
+    window->wl.width = wndconfig->width;
+    window->wl.height = wndconfig->height;
+    window->wl.fbWidth = wndconfig->width;
+    window->wl.fbHeight = wndconfig->height;
+    window->wl.appId = _glfw_strdup(wndconfig->wl.appId);
+
+    window->wl.bufferScale = 1;
+    window->wl.scalingNumerator = 120;
+    window->wl.scaleFramebuffer = wndconfig->scaleFramebuffer;
+
+    window->wl.maximized = wndconfig->maximized;
+
+    window->wl.transparent = fbconfig->transparent;
+    if (!window->wl.transparent)
+        setContentAreaOpaque(window);
+
+    if (_glfw.wl.fractionalScaleManager)
+    {
+        if (window->wl.scaleFramebuffer)
+        {
+            window->wl.scalingViewport =
+                wp_viewporter_get_viewport(_glfw.wl.viewporter, window->wl.surface);
+
+            wp_viewport_set_destination(window->wl.scalingViewport,
+                                        window->wl.width,
+                                        window->wl.height);
+
+            window->wl.fractionalScale =
+                wp_fractional_scale_manager_v1_get_fractional_scale(
+                    _glfw.wl.fractionalScaleManager,
+                    window->wl.surface);
+
+            wp_fractional_scale_v1_add_listener(window->wl.fractionalScale,
+                                                &fractionalScaleListener,
+                                                window);
+        }
+    }
+
+    return GLFW_TRUE;
+}
+
+static void setCursorImage(_GLFWwindow* window,
+                           _GLFWcursorWayland* cursorWayland)
+{
+    struct itimerspec timer = {0};
+    struct wl_cursor* wlCursor = cursorWayland->cursor;
+    struct wl_cursor_image* image;
+    struct wl_buffer* buffer;
+    struct wl_surface* surface = _glfw.wl.cursorSurface;
+    int scale = 1;
+
+    if (!wlCursor)
+        buffer = cursorWayland->buffer;
+    else
+    {
+        if (window->wl.bufferScale > 1 && cursorWayland->cursorHiDPI)
+        {
+            wlCursor = cursorWayland->cursorHiDPI;
+            scale = 2;
+        }
+
+        image = wlCursor->images[cursorWayland->currentImage];
+        buffer = wl_cursor_image_get_buffer(image);
+        if (!buffer)
+            return;
+
+        timer.it_value.tv_sec = image->delay / 1000;
+        timer.it_value.tv_nsec = (image->delay % 1000) * 1000000;
+        timerfd_settime(_glfw.wl.cursorTimerfd, 0, &timer, NULL);
+
+        cursorWayland->width = image->width;
+        cursorWayland->height = image->height;
+        cursorWayland->xhot = image->hotspot_x;
+        cursorWayland->yhot = image->hotspot_y;
+    }
+
+    wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerEnterSerial,
+                          surface,
+                          cursorWayland->xhot / scale,
+                          cursorWayland->yhot / scale);
+    wl_surface_set_buffer_scale(surface, scale);
+    wl_surface_attach(surface, buffer, 0, 0);
+    wl_surface_damage(surface, 0, 0,
+                      cursorWayland->width, cursorWayland->height);
+    wl_surface_commit(surface);
+}
+
+static void incrementCursorImage(_GLFWwindow* window)
+{
+    _GLFWcursor* cursor;
+
+    if (!window || !window->wl.hovered)
+        return;
+
+    cursor = window->wl.currentCursor;
+    if (cursor && cursor->wl.cursor)
+    {
+        cursor->wl.currentImage += 1;
+        cursor->wl.currentImage %= cursor->wl.cursor->image_count;
+        setCursorImage(window, &cursor->wl);
+    }
+}
+
+static GLFWbool flushDisplay(void)
+{
+    while (wl_display_flush(_glfw.wl.display) == -1)
+    {
+        if (errno != EAGAIN)
+            return GLFW_FALSE;
+
+        struct pollfd fd = { wl_display_get_fd(_glfw.wl.display), POLLOUT };
+
+        while (poll(&fd, 1, -1) == -1)
+        {
+            if (errno != EINTR && errno != EAGAIN)
+                return GLFW_FALSE;
+        }
+    }
+
+    return GLFW_TRUE;
+}
+
+static int translateKey(uint32_t scancode)
+{
+    if (scancode < sizeof(_glfw.wl.keycodes) / sizeof(_glfw.wl.keycodes[0]))
+        return _glfw.wl.keycodes[scancode];
+
+    return GLFW_KEY_UNKNOWN;
+}
+
+static xkb_keysym_t composeSymbol(xkb_keysym_t sym)
+{
+    if (sym == XKB_KEY_NoSymbol || !_glfw.wl.xkb.composeState)
+        return sym;
+    if (xkb_compose_state_feed(_glfw.wl.xkb.composeState, sym)
+            != XKB_COMPOSE_FEED_ACCEPTED)
+        return sym;
+    switch (xkb_compose_state_get_status(_glfw.wl.xkb.composeState))
+    {
+        case XKB_COMPOSE_COMPOSED:
+            return xkb_compose_state_get_one_sym(_glfw.wl.xkb.composeState);
+        case XKB_COMPOSE_COMPOSING:
+        case XKB_COMPOSE_CANCELLED:
+            return XKB_KEY_NoSymbol;
+        case XKB_COMPOSE_NOTHING:
+        default:
+            return sym;
+    }
+}
+
+static void inputText(_GLFWwindow* window, uint32_t scancode)
+{
+    const xkb_keysym_t* keysyms;
+    const xkb_keycode_t keycode = scancode + 8;
+
+    if (xkb_state_key_get_syms(_glfw.wl.xkb.state, keycode, &keysyms) == 1)
+    {
+        const xkb_keysym_t keysym = composeSymbol(keysyms[0]);
+        const uint32_t codepoint = _glfwKeySym2Unicode(keysym);
+        if (codepoint != GLFW_INVALID_CODEPOINT)
+        {
+            const int mods = _glfw.wl.xkb.modifiers;
+            const int plain = !(mods & (GLFW_MOD_CONTROL | GLFW_MOD_ALT));
+            _glfwInputChar(window, codepoint, mods, plain);
+        }
+    }
+}
+
+static void handleEvents(double* timeout)
+{
+#if defined(GLFW_BUILD_LINUX_JOYSTICK)
+    if (_glfw.joysticksInitialized)
+        _glfwDetectJoystickConnectionLinux();
+#endif
+
+    GLFWbool event = GLFW_FALSE;
+    enum { DISPLAY_FD, KEYREPEAT_FD, CURSOR_FD, LIBDECOR_FD };
+    struct pollfd fds[] =
+    {
+        [DISPLAY_FD] = { wl_display_get_fd(_glfw.wl.display), POLLIN },
+        [KEYREPEAT_FD] = { _glfw.wl.keyRepeatTimerfd, POLLIN },
+        [CURSOR_FD] = { _glfw.wl.cursorTimerfd, POLLIN },
+        [LIBDECOR_FD] = { -1, POLLIN }
+    };
+
+    if (_glfw.wl.libdecor.context)
+        fds[LIBDECOR_FD].fd = libdecor_get_fd(_glfw.wl.libdecor.context);
+
+    while (!event)
+    {
+        while (wl_display_prepare_read(_glfw.wl.display) != 0)
+        {
+            if (wl_display_dispatch_pending(_glfw.wl.display) > 0)
+                return;
+        }
+
+        // If an error other than EAGAIN happens, we have likely been disconnected
+        // from the Wayland session; try to handle that the best we can.
+        if (!flushDisplay())
+        {
+            wl_display_cancel_read(_glfw.wl.display);
+
+            _GLFWwindow* window = _glfw.windowListHead;
+            while (window)
+            {
+                _glfwInputWindowCloseRequest(window);
+                window = window->next;
+            }
+
+            return;
+        }
+
+        if (!_glfwPollPOSIX(fds, sizeof(fds) / sizeof(fds[0]), timeout))
+        {
+            wl_display_cancel_read(_glfw.wl.display);
+            return;
+        }
+
+        if (fds[DISPLAY_FD].revents & POLLIN)
+        {
+            wl_display_read_events(_glfw.wl.display);
+            if (wl_display_dispatch_pending(_glfw.wl.display) > 0)
+                event = GLFW_TRUE;
+        }
+        else
+            wl_display_cancel_read(_glfw.wl.display);
+
+        if (fds[KEYREPEAT_FD].revents & POLLIN)
+        {
+            uint64_t repeats;
+
+            if (read(_glfw.wl.keyRepeatTimerfd, &repeats, sizeof(repeats)) == 8)
+            {
+                for (uint64_t i = 0; i < repeats; i++)
+                {
+                    _glfwInputKey(_glfw.wl.keyboardFocus,
+                                  translateKey(_glfw.wl.keyRepeatScancode),
+                                  _glfw.wl.keyRepeatScancode,
+                                  GLFW_PRESS,
+                                  _glfw.wl.xkb.modifiers);
+                    inputText(_glfw.wl.keyboardFocus, _glfw.wl.keyRepeatScancode);
+                }
+
+                event = GLFW_TRUE;
+            }
+        }
+
+        if (fds[CURSOR_FD].revents & POLLIN)
+        {
+            uint64_t repeats;
+
+            if (read(_glfw.wl.cursorTimerfd, &repeats, sizeof(repeats)) == 8)
+                incrementCursorImage(_glfw.wl.pointerFocus);
+        }
+
+        if (fds[LIBDECOR_FD].revents & POLLIN)
+        {
+            if (libdecor_dispatch(_glfw.wl.libdecor.context, 0) > 0)
+                event = GLFW_TRUE;
+        }
+    }
+}
+
+// Reads the specified data offer as the specified MIME type
+//
+static char* readDataOfferAsString(struct wl_data_offer* offer, const char* mimeType)
+{
+    int fds[2];
+
+    if (pipe2(fds, O_CLOEXEC) == -1)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to create pipe for data offer: %s",
+                        strerror(errno));
+        return NULL;
+    }
+
+    wl_data_offer_receive(offer, mimeType, fds[1]);
+    flushDisplay();
+    close(fds[1]);
+
+    char* string = NULL;
+    size_t size = 0;
+    size_t length = 0;
+
+    for (;;)
+    {
+        const size_t readSize = 4096;
+        const size_t requiredSize = length + readSize + 1;
+        if (requiredSize > size)
+        {
+            char* longer = _glfw_realloc(string, requiredSize);
+            if (!longer)
+            {
+                _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
+                close(fds[0]);
+                return NULL;
+            }
+
+            string = longer;
+            size = requiredSize;
+        }
+
+        const ssize_t result = read(fds[0], string + length, readSize);
+        if (result == 0)
+            break;
+        else if (result == -1)
+        {
+            if (errno == EINTR)
+                continue;
+
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Wayland: Failed to read from data offer pipe: %s",
+                            strerror(errno));
+            close(fds[0]);
+            return NULL;
+        }
+
+        length += result;
+    }
+
+    close(fds[0]);
+
+    string[length] = '\0';
+    return string;
+}
+
+static void pointerHandleEnter(void* userData,
+                               struct wl_pointer* pointer,
+                               uint32_t serial,
+                               struct wl_surface* surface,
+                               wl_fixed_t sx,
+                               wl_fixed_t sy)
+{
+    // Happens in the case we just destroyed the surface.
+    if (!surface)
+        return;
+
+    if (wl_proxy_get_tag((struct wl_proxy*) surface) != &_glfw.wl.tag)
+        return;
+
+    _GLFWwindow* window = wl_surface_get_user_data(surface);
+
+    _glfw.wl.serial = serial;
+    _glfw.wl.pointerEnterSerial = serial;
+    _glfw.wl.pointerFocus = window;
+
+    if (surface == window->wl.surface)
+    {
+        window->wl.hovered = GLFW_TRUE;
+        _glfwSetCursorWayland(window, window->wl.currentCursor);
+        _glfwInputCursorEnter(window, GLFW_TRUE);
+    }
+    else
+    {
+        if (window->wl.fallback.decorations)
+            window->wl.fallback.focus = surface;
+    }
+}
+
+static void pointerHandleLeave(void* userData,
+                               struct wl_pointer* pointer,
+                               uint32_t serial,
+                               struct wl_surface* surface)
+{
+    if (!surface)
+        return;
+
+    if (wl_proxy_get_tag((struct wl_proxy*) surface) != &_glfw.wl.tag)
+        return;
+
+    _GLFWwindow* window = _glfw.wl.pointerFocus;
+    if (!window)
+        return;
+
+    _glfw.wl.serial = serial;
+    _glfw.wl.pointerFocus = NULL;
+    _glfw.wl.cursorPreviousName = NULL;
+
+    if (window->wl.hovered)
+    {
+        window->wl.hovered = GLFW_FALSE;
+        _glfwInputCursorEnter(window, GLFW_FALSE);
+    }
+    else
+    {
+        if (window->wl.fallback.decorations)
+            window->wl.fallback.focus = NULL;
+    }
+}
+
+static void pointerHandleMotion(void* userData,
+                                struct wl_pointer* pointer,
+                                uint32_t time,
+                                wl_fixed_t sx,
+                                wl_fixed_t sy)
+{
+    _GLFWwindow* window = _glfw.wl.pointerFocus;
+    if (!window)
+        return;
+
+    if (window->cursorMode == GLFW_CURSOR_DISABLED)
+        return;
+
+    const double xpos = wl_fixed_to_double(sx);
+    const double ypos = wl_fixed_to_double(sy);
+    window->wl.cursorPosX = xpos;
+    window->wl.cursorPosY = ypos;
+
+    if (window->wl.hovered)
+    {
+        _glfw.wl.cursorPreviousName = NULL;
+        _glfwInputCursorPos(window, xpos, ypos);
+        return;
+    }
+
+    if (window->wl.fallback.decorations)
+    {
+        const char* cursorName = "left_ptr";
+
+        if (window->resizable)
+        {
+            if (window->wl.fallback.focus == window->wl.fallback.top.surface)
+            {
+                if (ypos < GLFW_BORDER_SIZE)
+                    cursorName = "n-resize";
+            }
+            else if (window->wl.fallback.focus == window->wl.fallback.left.surface)
+            {
+                if (ypos < GLFW_BORDER_SIZE)
+                    cursorName = "nw-resize";
+                else
+                    cursorName = "w-resize";
+            }
+            else if (window->wl.fallback.focus == window->wl.fallback.right.surface)
+            {
+                if (ypos < GLFW_BORDER_SIZE)
+                    cursorName = "ne-resize";
+                else
+                    cursorName = "e-resize";
+            }
+            else if (window->wl.fallback.focus == window->wl.fallback.bottom.surface)
+            {
+                if (xpos < GLFW_BORDER_SIZE)
+                    cursorName = "sw-resize";
+                else if (xpos > window->wl.width + GLFW_BORDER_SIZE)
+                    cursorName = "se-resize";
+                else
+                    cursorName = "s-resize";
+            }
+        }
+
+        if (_glfw.wl.cursorPreviousName != cursorName)
+        {
+            struct wl_surface* surface = _glfw.wl.cursorSurface;
+            struct wl_cursor_theme* theme = _glfw.wl.cursorTheme;
+            int scale = 1;
+
+            if (window->wl.bufferScale > 1 && _glfw.wl.cursorThemeHiDPI)
+            {
+                // We only support up to scale=2 for now, since libwayland-cursor
+                // requires us to load a different theme for each size.
+                scale = 2;
+                theme = _glfw.wl.cursorThemeHiDPI;
+            }
+
+            struct wl_cursor* cursor = wl_cursor_theme_get_cursor(theme, cursorName);
+            if (!cursor)
+                return;
+
+            // TODO: handle animated cursors too.
+            struct wl_cursor_image* image = cursor->images[0];
+            if (!image)
+                return;
+
+            struct wl_buffer* buffer = wl_cursor_image_get_buffer(image);
+            if (!buffer)
+                return;
+
+            wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerEnterSerial,
+                                  surface,
+                                  image->hotspot_x / scale,
+                                  image->hotspot_y / scale);
+            wl_surface_set_buffer_scale(surface, scale);
+            wl_surface_attach(surface, buffer, 0, 0);
+            wl_surface_damage(surface, 0, 0, image->width, image->height);
+            wl_surface_commit(surface);
+
+            _glfw.wl.cursorPreviousName = cursorName;
+        }
+    }
+}
+
+static void pointerHandleButton(void* userData,
+                                struct wl_pointer* pointer,
+                                uint32_t serial,
+                                uint32_t time,
+                                uint32_t button,
+                                uint32_t state)
+{
+    _GLFWwindow* window = _glfw.wl.pointerFocus;
+    if (!window)
+        return;
+
+    if (window->wl.hovered)
+    {
+        _glfw.wl.serial = serial;
+
+        _glfwInputMouseClick(window,
+                             button - BTN_LEFT,
+                             state == WL_POINTER_BUTTON_STATE_PRESSED,
+                             _glfw.wl.xkb.modifiers);
+        return;
+    }
+
+    if (window->wl.fallback.decorations)
+    {
+        if (button == BTN_LEFT)
+        {
+            uint32_t edges = XDG_TOPLEVEL_RESIZE_EDGE_NONE;
+
+            if (window->wl.fallback.focus == window->wl.fallback.top.surface)
+            {
+                if (window->wl.cursorPosY < GLFW_BORDER_SIZE)
+                    edges = XDG_TOPLEVEL_RESIZE_EDGE_TOP;
+                else
+                    xdg_toplevel_move(window->wl.xdg.toplevel, _glfw.wl.seat, serial);
+            }
+            else if (window->wl.fallback.focus == window->wl.fallback.left.surface)
+            {
+                if (window->wl.cursorPosY < GLFW_BORDER_SIZE)
+                    edges = XDG_TOPLEVEL_RESIZE_EDGE_TOP_LEFT;
+                else
+                    edges = XDG_TOPLEVEL_RESIZE_EDGE_LEFT;
+            }
+            else if (window->wl.fallback.focus == window->wl.fallback.right.surface)
+            {
+                if (window->wl.cursorPosY < GLFW_BORDER_SIZE)
+                    edges = XDG_TOPLEVEL_RESIZE_EDGE_TOP_RIGHT;
+                else
+                    edges = XDG_TOPLEVEL_RESIZE_EDGE_RIGHT;
+            }
+            else if (window->wl.fallback.focus == window->wl.fallback.bottom.surface)
+            {
+                if (window->wl.cursorPosX < GLFW_BORDER_SIZE)
+                    edges = XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM_LEFT;
+                else if (window->wl.cursorPosX > window->wl.width + GLFW_BORDER_SIZE)
+                    edges = XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM_RIGHT;
+                else
+                    edges = XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM;
+            }
+
+            if (edges != XDG_TOPLEVEL_RESIZE_EDGE_NONE)
+            {
+                xdg_toplevel_resize(window->wl.xdg.toplevel, _glfw.wl.seat,
+                                    serial, edges);
+            }
+        }
+        else if (button == BTN_RIGHT)
+        {
+            if (window->wl.xdg.toplevel)
+            {
+                xdg_toplevel_show_window_menu(window->wl.xdg.toplevel,
+                                              _glfw.wl.seat, serial,
+                                              window->wl.cursorPosX,
+                                              window->wl.cursorPosY);
+            }
+        }
+    }
+}
+
+static void pointerHandleAxis(void* userData,
+                              struct wl_pointer* pointer,
+                              uint32_t time,
+                              uint32_t axis,
+                              wl_fixed_t value)
+{
+    _GLFWwindow* window = _glfw.wl.pointerFocus;
+    if (!window)
+        return;
+
+    // NOTE: 10 units of motion per mouse wheel step seems to be a common ratio
+    if (axis == WL_POINTER_AXIS_HORIZONTAL_SCROLL)
+        _glfwInputScroll(window, -wl_fixed_to_double(value) / 10.0, 0.0);
+    else if (axis == WL_POINTER_AXIS_VERTICAL_SCROLL)
+        _glfwInputScroll(window, 0.0, -wl_fixed_to_double(value) / 10.0);
+}
+
+static const struct wl_pointer_listener pointerListener =
+{
+    pointerHandleEnter,
+    pointerHandleLeave,
+    pointerHandleMotion,
+    pointerHandleButton,
+    pointerHandleAxis,
+};
+
+static void keyboardHandleKeymap(void* userData,
+                                 struct wl_keyboard* keyboard,
+                                 uint32_t format,
+                                 int fd,
+                                 uint32_t size)
+{
+    struct xkb_keymap* keymap;
+    struct xkb_state* state;
+    struct xkb_compose_table* composeTable;
+    struct xkb_compose_state* composeState;
+
+    char* mapStr;
+    const char* locale;
+
+    if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1)
+    {
+        close(fd);
+        return;
+    }
+
+    mapStr = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
+    if (mapStr == MAP_FAILED) {
+        close(fd);
+        return;
+    }
+
+    keymap = xkb_keymap_new_from_string(_glfw.wl.xkb.context,
+                                        mapStr,
+                                        XKB_KEYMAP_FORMAT_TEXT_V1,
+                                        0);
+    munmap(mapStr, size);
+    close(fd);
+
+    if (!keymap)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to compile keymap");
+        return;
+    }
+
+    state = xkb_state_new(keymap);
+    if (!state)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to create XKB state");
+        xkb_keymap_unref(keymap);
+        return;
+    }
+
+    // Look up the preferred locale, falling back to "C" as default.
+    locale = getenv("LC_ALL");
+    if (!locale)
+        locale = getenv("LC_CTYPE");
+    if (!locale)
+        locale = getenv("LANG");
+    if (!locale)
+        locale = "C";
+
+    composeTable =
+        xkb_compose_table_new_from_locale(_glfw.wl.xkb.context, locale,
+                                          XKB_COMPOSE_COMPILE_NO_FLAGS);
+    if (composeTable)
+    {
+        composeState =
+            xkb_compose_state_new(composeTable, XKB_COMPOSE_STATE_NO_FLAGS);
+        xkb_compose_table_unref(composeTable);
+        if (composeState)
+            _glfw.wl.xkb.composeState = composeState;
+        else
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Wayland: Failed to create XKB compose state");
+    }
+    else
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to create XKB compose table");
+    }
+
+    xkb_keymap_unref(_glfw.wl.xkb.keymap);
+    xkb_state_unref(_glfw.wl.xkb.state);
+    _glfw.wl.xkb.keymap = keymap;
+    _glfw.wl.xkb.state = state;
+
+    _glfw.wl.xkb.controlIndex  = xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Control");
+    _glfw.wl.xkb.altIndex      = xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Mod1");
+    _glfw.wl.xkb.shiftIndex    = xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Shift");
+    _glfw.wl.xkb.superIndex    = xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Mod4");
+    _glfw.wl.xkb.capsLockIndex = xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Lock");
+    _glfw.wl.xkb.numLockIndex  = xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Mod2");
+}
+
+static void keyboardHandleEnter(void* userData,
+                                struct wl_keyboard* keyboard,
+                                uint32_t serial,
+                                struct wl_surface* surface,
+                                struct wl_array* keys)
+{
+    // Happens in the case we just destroyed the surface.
+    if (!surface)
+        return;
+
+    if (wl_proxy_get_tag((struct wl_proxy*) surface) != &_glfw.wl.tag)
+        return;
+
+    _GLFWwindow* window = wl_surface_get_user_data(surface);
+    if (surface != window->wl.surface)
+        return;
+
+    _glfw.wl.serial = serial;
+    _glfw.wl.keyboardFocus = window;
+    _glfwInputWindowFocus(window, GLFW_TRUE);
+}
+
+static void keyboardHandleLeave(void* userData,
+                                struct wl_keyboard* keyboard,
+                                uint32_t serial,
+                                struct wl_surface* surface)
+{
+    _GLFWwindow* window = _glfw.wl.keyboardFocus;
+
+    if (!window)
+        return;
+
+    struct itimerspec timer = {0};
+    timerfd_settime(_glfw.wl.keyRepeatTimerfd, 0, &timer, NULL);
+
+    _glfw.wl.serial = serial;
+    _glfw.wl.keyboardFocus = NULL;
+    _glfwInputWindowFocus(window, GLFW_FALSE);
+}
+
+static void keyboardHandleKey(void* userData,
+                              struct wl_keyboard* keyboard,
+                              uint32_t serial,
+                              uint32_t time,
+                              uint32_t scancode,
+                              uint32_t state)
+{
+    _GLFWwindow* window = _glfw.wl.keyboardFocus;
+    if (!window)
+        return;
+
+    const int key = translateKey(scancode);
+    const int action =
+        state == WL_KEYBOARD_KEY_STATE_PRESSED ? GLFW_PRESS : GLFW_RELEASE;
+
+    _glfw.wl.serial = serial;
+
+    struct itimerspec timer = {0};
+
+    if (action == GLFW_PRESS)
+    {
+        const xkb_keycode_t keycode = scancode + 8;
+
+        if (xkb_keymap_key_repeats(_glfw.wl.xkb.keymap, keycode) &&
+            _glfw.wl.keyRepeatRate > 0)
+        {
+            _glfw.wl.keyRepeatScancode = scancode;
+            if (_glfw.wl.keyRepeatRate > 1)
+                timer.it_interval.tv_nsec = 1000000000 / _glfw.wl.keyRepeatRate;
+            else
+                timer.it_interval.tv_sec = 1;
+
+            timer.it_value.tv_sec = _glfw.wl.keyRepeatDelay / 1000;
+            timer.it_value.tv_nsec = (_glfw.wl.keyRepeatDelay % 1000) * 1000000;
+        }
+    }
+
+    timerfd_settime(_glfw.wl.keyRepeatTimerfd, 0, &timer, NULL);
+
+    _glfwInputKey(window, key, scancode, action, _glfw.wl.xkb.modifiers);
+
+    if (action == GLFW_PRESS)
+        inputText(window, scancode);
+}
+
+static void keyboardHandleModifiers(void* userData,
+                                    struct wl_keyboard* keyboard,
+                                    uint32_t serial,
+                                    uint32_t modsDepressed,
+                                    uint32_t modsLatched,
+                                    uint32_t modsLocked,
+                                    uint32_t group)
+{
+    _glfw.wl.serial = serial;
+
+    if (!_glfw.wl.xkb.keymap)
+        return;
+
+    xkb_state_update_mask(_glfw.wl.xkb.state,
+                          modsDepressed,
+                          modsLatched,
+                          modsLocked,
+                          0,
+                          0,
+                          group);
+
+    _glfw.wl.xkb.modifiers = 0;
+
+    struct
+    {
+        xkb_mod_index_t index;
+        unsigned int bit;
+    } modifiers[] =
+    {
+        { _glfw.wl.xkb.controlIndex,  GLFW_MOD_CONTROL },
+        { _glfw.wl.xkb.altIndex,      GLFW_MOD_ALT },
+        { _glfw.wl.xkb.shiftIndex,    GLFW_MOD_SHIFT },
+        { _glfw.wl.xkb.superIndex,    GLFW_MOD_SUPER },
+        { _glfw.wl.xkb.capsLockIndex, GLFW_MOD_CAPS_LOCK },
+        { _glfw.wl.xkb.numLockIndex,  GLFW_MOD_NUM_LOCK }
+    };
+
+    for (size_t i = 0; i < sizeof(modifiers) / sizeof(modifiers[0]); i++)
+    {
+        if (xkb_state_mod_index_is_active(_glfw.wl.xkb.state,
+                                          modifiers[i].index,
+                                          XKB_STATE_MODS_EFFECTIVE) == 1)
+        {
+            _glfw.wl.xkb.modifiers |= modifiers[i].bit;
+        }
+    }
+}
+
+static void keyboardHandleRepeatInfo(void* userData,
+                                     struct wl_keyboard* keyboard,
+                                     int32_t rate,
+                                     int32_t delay)
+{
+    if (keyboard != _glfw.wl.keyboard)
+        return;
+
+    _glfw.wl.keyRepeatRate = rate;
+    _glfw.wl.keyRepeatDelay = delay;
+}
+
+static const struct wl_keyboard_listener keyboardListener =
+{
+    keyboardHandleKeymap,
+    keyboardHandleEnter,
+    keyboardHandleLeave,
+    keyboardHandleKey,
+    keyboardHandleModifiers,
+    keyboardHandleRepeatInfo,
+};
+
+static void seatHandleCapabilities(void* userData,
+                                   struct wl_seat* seat,
+                                   enum wl_seat_capability caps)
+{
+    if ((caps & WL_SEAT_CAPABILITY_POINTER) && !_glfw.wl.pointer)
+    {
+        _glfw.wl.pointer = wl_seat_get_pointer(seat);
+        wl_pointer_add_listener(_glfw.wl.pointer, &pointerListener, NULL);
+    }
+    else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && _glfw.wl.pointer)
+    {
+        wl_pointer_destroy(_glfw.wl.pointer);
+        _glfw.wl.pointer = NULL;
+    }
+
+    if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !_glfw.wl.keyboard)
+    {
+        _glfw.wl.keyboard = wl_seat_get_keyboard(seat);
+        wl_keyboard_add_listener(_glfw.wl.keyboard, &keyboardListener, NULL);
+    }
+    else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && _glfw.wl.keyboard)
+    {
+        wl_keyboard_destroy(_glfw.wl.keyboard);
+        _glfw.wl.keyboard = NULL;
+    }
+}
+
+static void seatHandleName(void* userData,
+                           struct wl_seat* seat,
+                           const char* name)
+{
+}
+
+static const struct wl_seat_listener seatListener =
+{
+    seatHandleCapabilities,
+    seatHandleName,
+};
+
+static void dataOfferHandleOffer(void* userData,
+                                 struct wl_data_offer* offer,
+                                 const char* mimeType)
+{
+    for (unsigned int i = 0; i < _glfw.wl.offerCount; i++)
+    {
+        if (_glfw.wl.offers[i].offer == offer)
+        {
+            if (strcmp(mimeType, "text/plain;charset=utf-8") == 0)
+                _glfw.wl.offers[i].text_plain_utf8 = GLFW_TRUE;
+            else if (strcmp(mimeType, "text/uri-list") == 0)
+                _glfw.wl.offers[i].text_uri_list = GLFW_TRUE;
+
+            break;
+        }
+    }
+}
+
+static const struct wl_data_offer_listener dataOfferListener =
+{
+    dataOfferHandleOffer
+};
+
+static void dataDeviceHandleDataOffer(void* userData,
+                                      struct wl_data_device* device,
+                                      struct wl_data_offer* offer)
+{
+    _GLFWofferWayland* offers =
+        _glfw_realloc(_glfw.wl.offers,
+                      sizeof(_GLFWofferWayland) * (_glfw.wl.offerCount + 1));
+    if (!offers)
+    {
+        _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
+        return;
+    }
+
+    _glfw.wl.offers = offers;
+    _glfw.wl.offerCount++;
+
+    _glfw.wl.offers[_glfw.wl.offerCount - 1] = (_GLFWofferWayland) { offer };
+    wl_data_offer_add_listener(offer, &dataOfferListener, NULL);
+}
+
+static void dataDeviceHandleEnter(void* userData,
+                                  struct wl_data_device* device,
+                                  uint32_t serial,
+                                  struct wl_surface* surface,
+                                  wl_fixed_t x,
+                                  wl_fixed_t y,
+                                  struct wl_data_offer* offer)
+{
+    if (_glfw.wl.dragOffer)
+    {
+        wl_data_offer_destroy(_glfw.wl.dragOffer);
+        _glfw.wl.dragOffer = NULL;
+        _glfw.wl.dragFocus = NULL;
+    }
+
+    unsigned int i;
+
+    for (i = 0; i < _glfw.wl.offerCount; i++)
+    {
+        if (_glfw.wl.offers[i].offer == offer)
+            break;
+    }
+
+    if (i == _glfw.wl.offerCount)
+        return;
+
+    if (surface && wl_proxy_get_tag((struct wl_proxy*) surface) == &_glfw.wl.tag)
+    {
+        _GLFWwindow* window = wl_surface_get_user_data(surface);
+        if (window->wl.surface == surface)
+        {
+            if (_glfw.wl.offers[i].text_uri_list)
+            {
+                _glfw.wl.dragOffer = offer;
+                _glfw.wl.dragFocus = window;
+                _glfw.wl.dragSerial = serial;
+
+                wl_data_offer_accept(offer, serial, "text/uri-list");
+            }
+        }
+    }
+
+    if (!_glfw.wl.dragOffer)
+    {
+        wl_data_offer_accept(offer, serial, NULL);
+        wl_data_offer_destroy(offer);
+    }
+
+    _glfw.wl.offers[i] = _glfw.wl.offers[_glfw.wl.offerCount - 1];
+    _glfw.wl.offerCount--;
+}
+
+static void dataDeviceHandleLeave(void* userData,
+                                  struct wl_data_device* device)
+{
+    if (_glfw.wl.dragOffer)
+    {
+        wl_data_offer_destroy(_glfw.wl.dragOffer);
+        _glfw.wl.dragOffer = NULL;
+        _glfw.wl.dragFocus = NULL;
+    }
+}
+
+static void dataDeviceHandleMotion(void* userData,
+                                   struct wl_data_device* device,
+                                   uint32_t time,
+                                   wl_fixed_t x,
+                                   wl_fixed_t y)
+{
+}
+
+static void dataDeviceHandleDrop(void* userData,
+                                 struct wl_data_device* device)
+{
+    if (!_glfw.wl.dragOffer)
+        return;
+
+    char* string = readDataOfferAsString(_glfw.wl.dragOffer, "text/uri-list");
+    if (string)
+    {
+        int count;
+        char** paths = _glfwParseUriList(string, &count);
+        if (paths)
+        {
+            _glfwInputDrop(_glfw.wl.dragFocus, count, (const char**) paths);
+
+            for (int i = 0; i < count; i++)
+                _glfw_free(paths[i]);
+
+            _glfw_free(paths);
+        }
+
+        _glfw_free(string);
+    }
+}
+
+static void dataDeviceHandleSelection(void* userData,
+                                      struct wl_data_device* device,
+                                      struct wl_data_offer* offer)
+{
+    if (_glfw.wl.selectionOffer)
+    {
+        wl_data_offer_destroy(_glfw.wl.selectionOffer);
+        _glfw.wl.selectionOffer = NULL;
+    }
+
+    for (unsigned int i = 0; i < _glfw.wl.offerCount; i++)
+    {
+        if (_glfw.wl.offers[i].offer == offer)
+        {
+            if (_glfw.wl.offers[i].text_plain_utf8)
+                _glfw.wl.selectionOffer = offer;
+            else
+                wl_data_offer_destroy(offer);
+
+            _glfw.wl.offers[i] = _glfw.wl.offers[_glfw.wl.offerCount - 1];
+            _glfw.wl.offerCount--;
+            break;
+        }
+    }
+}
+
+const struct wl_data_device_listener dataDeviceListener =
+{
+    dataDeviceHandleDataOffer,
+    dataDeviceHandleEnter,
+    dataDeviceHandleLeave,
+    dataDeviceHandleMotion,
+    dataDeviceHandleDrop,
+    dataDeviceHandleSelection,
+};
+
+static void xdgActivationHandleDone(void* userData,
+                                    struct xdg_activation_token_v1* activationToken,
+                                    const char* token)
+{
+    _GLFWwindow* window = userData;
+
+    if (activationToken != window->wl.activationToken)
+        return;
+
+    xdg_activation_v1_activate(_glfw.wl.activationManager, token, window->wl.surface);
+    xdg_activation_token_v1_destroy(window->wl.activationToken);
+    window->wl.activationToken = NULL;
+}
+
+static const struct xdg_activation_token_v1_listener xdgActivationListener =
+{
+    xdgActivationHandleDone
+};
+
+void _glfwAddSeatListenerWayland(struct wl_seat* seat)
+{
+    wl_seat_add_listener(seat, &seatListener, NULL);
+}
+
+void _glfwAddDataDeviceListenerWayland(struct wl_data_device* device)
+{
+    wl_data_device_add_listener(device, &dataDeviceListener, NULL);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwCreateWindowWayland(_GLFWwindow* window,
+                                  const _GLFWwndconfig* wndconfig,
+                                  const _GLFWctxconfig* ctxconfig,
+                                  const _GLFWfbconfig* fbconfig)
+{
+    if (!createNativeSurface(window, wndconfig, fbconfig))
+        return GLFW_FALSE;
+
+    if (ctxconfig->client != GLFW_NO_API)
+    {
+        if (ctxconfig->source == GLFW_EGL_CONTEXT_API ||
+            ctxconfig->source == GLFW_NATIVE_CONTEXT_API)
+        {
+            window->wl.egl.window = wl_egl_window_create(window->wl.surface,
+                                                         window->wl.fbWidth,
+                                                         window->wl.fbHeight);
+            if (!window->wl.egl.window)
+            {
+                _glfwInputError(GLFW_PLATFORM_ERROR,
+                                "Wayland: Failed to create EGL window");
+                return GLFW_FALSE;
+            }
+
+            if (!_glfwInitEGL())
+                return GLFW_FALSE;
+            if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+        else if (ctxconfig->source == GLFW_OSMESA_CONTEXT_API)
+        {
+            if (!_glfwInitOSMesa())
+                return GLFW_FALSE;
+            if (!_glfwCreateContextOSMesa(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+
+        if (!_glfwRefreshContextAttribs(window, ctxconfig))
+            return GLFW_FALSE;
+    }
+
+    if (wndconfig->mousePassthrough)
+        _glfwSetWindowMousePassthroughWayland(window, GLFW_TRUE);
+
+    if (window->monitor || wndconfig->visible)
+    {
+        if (!createShellObjects(window))
+            return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwDestroyWindowWayland(_GLFWwindow* window)
+{
+    if (window == _glfw.wl.pointerFocus)
+        _glfw.wl.pointerFocus = NULL;
+
+    if (window == _glfw.wl.keyboardFocus)
+        _glfw.wl.keyboardFocus = NULL;
+
+    if (window->wl.fractionalScale)
+        wp_fractional_scale_v1_destroy(window->wl.fractionalScale);
+
+    if (window->wl.scalingViewport)
+        wp_viewport_destroy(window->wl.scalingViewport);
+
+    if (window->wl.activationToken)
+        xdg_activation_token_v1_destroy(window->wl.activationToken);
+
+    if (window->wl.idleInhibitor)
+        zwp_idle_inhibitor_v1_destroy(window->wl.idleInhibitor);
+
+    if (window->wl.relativePointer)
+        zwp_relative_pointer_v1_destroy(window->wl.relativePointer);
+
+    if (window->wl.lockedPointer)
+        zwp_locked_pointer_v1_destroy(window->wl.lockedPointer);
+
+    if (window->wl.confinedPointer)
+        zwp_confined_pointer_v1_destroy(window->wl.confinedPointer);
+
+    if (window->context.destroy)
+        window->context.destroy(window);
+
+    destroyShellObjects(window);
+
+    if (window->wl.fallback.buffer)
+        wl_buffer_destroy(window->wl.fallback.buffer);
+
+    if (window->wl.egl.window)
+        wl_egl_window_destroy(window->wl.egl.window);
+
+    if (window->wl.surface)
+        wl_surface_destroy(window->wl.surface);
+
+    _glfw_free(window->wl.appId);
+    _glfw_free(window->wl.outputScales);
+}
+
+void _glfwSetWindowTitleWayland(_GLFWwindow* window, const char* title)
+{
+    if (window->wl.libdecor.frame)
+        libdecor_frame_set_title(window->wl.libdecor.frame, title);
+    else if (window->wl.xdg.toplevel)
+        xdg_toplevel_set_title(window->wl.xdg.toplevel, title);
+}
+
+void _glfwSetWindowIconWayland(_GLFWwindow* window,
+                               int count, const GLFWimage* images)
+{
+    _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                    "Wayland: The platform does not support setting the window icon");
+}
+
+void _glfwGetWindowPosWayland(_GLFWwindow* window, int* xpos, int* ypos)
+{
+    // A Wayland client is not aware of its position, so just warn and leave it
+    // as (0, 0)
+
+    _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                    "Wayland: The platform does not provide the window position");
+}
+
+void _glfwSetWindowPosWayland(_GLFWwindow* window, int xpos, int ypos)
+{
+    // A Wayland client can not set its position, so just warn
+
+    _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                    "Wayland: The platform does not support setting the window position");
+}
+
+void _glfwGetWindowSizeWayland(_GLFWwindow* window, int* width, int* height)
+{
+    if (width)
+        *width = window->wl.width;
+    if (height)
+        *height = window->wl.height;
+}
+
+void _glfwSetWindowSizeWayland(_GLFWwindow* window, int width, int height)
+{
+    if (window->monitor)
+    {
+        // Video mode setting is not available on Wayland
+    }
+    else
+    {
+        if (!resizeWindow(window, width, height))
+            return;
+
+        if (window->wl.libdecor.frame)
+        {
+            struct libdecor_state* frameState =
+                libdecor_state_new(window->wl.width, window->wl.height);
+            libdecor_frame_commit(window->wl.libdecor.frame, frameState, NULL);
+            libdecor_state_free(frameState);
+        }
+
+        if (window->wl.visible)
+            _glfwInputWindowDamage(window);
+    }
+}
+
+void _glfwSetWindowSizeLimitsWayland(_GLFWwindow* window,
+                                     int minwidth, int minheight,
+                                     int maxwidth, int maxheight)
+{
+    if (window->wl.libdecor.frame)
+    {
+        if (minwidth == GLFW_DONT_CARE || minheight == GLFW_DONT_CARE)
+            minwidth = minheight = 0;
+
+        if (maxwidth == GLFW_DONT_CARE || maxheight == GLFW_DONT_CARE)
+            maxwidth = maxheight = 0;
+
+        libdecor_frame_set_min_content_size(window->wl.libdecor.frame,
+                                            minwidth, minheight);
+        libdecor_frame_set_max_content_size(window->wl.libdecor.frame,
+                                            maxwidth, maxheight);
+    }
+    else if (window->wl.xdg.toplevel)
+        updateXdgSizeLimits(window);
+}
+
+void _glfwSetWindowAspectRatioWayland(_GLFWwindow* window, int numer, int denom)
+{
+    if (window->wl.maximized || window->wl.fullscreen)
+        return;
+
+    int width = window->wl.width, height = window->wl.height;
+
+    if (numer != GLFW_DONT_CARE && denom != GLFW_DONT_CARE)
+    {
+        const float aspectRatio = (float) width / (float) height;
+        const float targetRatio = (float) numer / (float) denom;
+        if (aspectRatio < targetRatio)
+            height /= targetRatio;
+        else if (aspectRatio > targetRatio)
+            width *= targetRatio;
+    }
+
+    if (resizeWindow(window, width, height))
+    {
+        if (window->wl.libdecor.frame)
+        {
+            struct libdecor_state* frameState =
+                libdecor_state_new(window->wl.width, window->wl.height);
+            libdecor_frame_commit(window->wl.libdecor.frame, frameState, NULL);
+            libdecor_state_free(frameState);
+        }
+
+        _glfwInputWindowSize(window, window->wl.width, window->wl.height);
+
+        if (window->wl.visible)
+            _glfwInputWindowDamage(window);
+    }
+}
+
+void _glfwGetFramebufferSizeWayland(_GLFWwindow* window, int* width, int* height)
+{
+    if (width)
+        *width = window->wl.fbWidth;
+    if (height)
+        *height = window->wl.fbHeight;
+}
+
+void _glfwGetWindowFrameSizeWayland(_GLFWwindow* window,
+                                    int* left, int* top,
+                                    int* right, int* bottom)
+{
+    if (window->wl.fallback.decorations)
+    {
+        if (top)
+            *top = GLFW_CAPTION_HEIGHT;
+        if (left)
+            *left = GLFW_BORDER_SIZE;
+        if (right)
+            *right = GLFW_BORDER_SIZE;
+        if (bottom)
+            *bottom = GLFW_BORDER_SIZE;
+    }
+}
+
+void _glfwGetWindowContentScaleWayland(_GLFWwindow* window,
+                                       float* xscale, float* yscale)
+{
+    if (window->wl.fractionalScale)
+    {
+        if (xscale)
+            *xscale = (float) window->wl.scalingNumerator / 120.f;
+        if (yscale)
+            *yscale = (float) window->wl.scalingNumerator / 120.f;
+    }
+    else
+    {
+        if (xscale)
+            *xscale = (float) window->wl.bufferScale;
+        if (yscale)
+            *yscale = (float) window->wl.bufferScale;
+    }
+}
+
+void _glfwIconifyWindowWayland(_GLFWwindow* window)
+{
+    if (window->wl.libdecor.frame)
+        libdecor_frame_set_minimized(window->wl.libdecor.frame);
+    else if (window->wl.xdg.toplevel)
+        xdg_toplevel_set_minimized(window->wl.xdg.toplevel);
+}
+
+void _glfwRestoreWindowWayland(_GLFWwindow* window)
+{
+    if (window->monitor)
+    {
+        // There is no way to unset minimized, or even to know if we are
+        // minimized, so there is nothing to do in this case.
+    }
+    else
+    {
+        // We assume we are not minimized and act only on maximization
+
+        if (window->wl.maximized)
+        {
+            if (window->wl.libdecor.frame)
+                libdecor_frame_unset_maximized(window->wl.libdecor.frame);
+            else if (window->wl.xdg.toplevel)
+                xdg_toplevel_unset_maximized(window->wl.xdg.toplevel);
+            else
+                window->wl.maximized = GLFW_FALSE;
+        }
+    }
+}
+
+void _glfwMaximizeWindowWayland(_GLFWwindow* window)
+{
+    if (window->wl.libdecor.frame)
+        libdecor_frame_set_maximized(window->wl.libdecor.frame);
+    else if (window->wl.xdg.toplevel)
+        xdg_toplevel_set_maximized(window->wl.xdg.toplevel);
+    else
+        window->wl.maximized = GLFW_TRUE;
+}
+
+void _glfwShowWindowWayland(_GLFWwindow* window)
+{
+    if (!window->wl.libdecor.frame && !window->wl.xdg.toplevel)
+    {
+        // NOTE: The XDG surface and role are created here so command-line applications
+        //       with off-screen windows do not appear in for example the Unity dock
+        createShellObjects(window);
+    }
+}
+
+void _glfwHideWindowWayland(_GLFWwindow* window)
+{
+    if (window->wl.visible)
+    {
+        window->wl.visible = GLFW_FALSE;
+        destroyShellObjects(window);
+
+        wl_surface_attach(window->wl.surface, NULL, 0, 0);
+        wl_surface_commit(window->wl.surface);
+    }
+}
+
+void _glfwRequestWindowAttentionWayland(_GLFWwindow* window)
+{
+    if (!_glfw.wl.activationManager)
+        return;
+
+    // We're about to overwrite this with a new request
+    if (window->wl.activationToken)
+        xdg_activation_token_v1_destroy(window->wl.activationToken);
+
+    window->wl.activationToken =
+        xdg_activation_v1_get_activation_token(_glfw.wl.activationManager);
+    xdg_activation_token_v1_add_listener(window->wl.activationToken,
+                                         &xdgActivationListener,
+                                         window);
+
+    xdg_activation_token_v1_commit(window->wl.activationToken);
+}
+
+void _glfwFocusWindowWayland(_GLFWwindow* window)
+{
+    if (!_glfw.wl.activationManager)
+        return;
+
+    if (window->wl.activationToken)
+        xdg_activation_token_v1_destroy(window->wl.activationToken);
+
+    window->wl.activationToken =
+        xdg_activation_v1_get_activation_token(_glfw.wl.activationManager);
+    xdg_activation_token_v1_add_listener(window->wl.activationToken,
+                                         &xdgActivationListener,
+                                         window);
+
+    xdg_activation_token_v1_set_serial(window->wl.activationToken,
+                                       _glfw.wl.serial,
+                                       _glfw.wl.seat);
+
+    _GLFWwindow* requester = _glfw.wl.keyboardFocus;
+    if (requester)
+    {
+        xdg_activation_token_v1_set_surface(window->wl.activationToken,
+                                            requester->wl.surface);
+
+        if (requester->wl.appId)
+        {
+            xdg_activation_token_v1_set_app_id(window->wl.activationToken,
+                                               requester->wl.appId);
+        }
+    }
+
+    xdg_activation_token_v1_commit(window->wl.activationToken);
+}
+
+void _glfwSetWindowMonitorWayland(_GLFWwindow* window,
+                                  _GLFWmonitor* monitor,
+                                  int xpos, int ypos,
+                                  int width, int height,
+                                  int refreshRate)
+{
+    if (window->monitor == monitor)
+    {
+        if (!monitor)
+            _glfwSetWindowSizeWayland(window, width, height);
+
+        return;
+    }
+
+    if (window->monitor)
+        releaseMonitor(window);
+
+    _glfwInputWindowMonitor(window, monitor);
+
+    if (window->monitor)
+        acquireMonitor(window);
+    else
+        _glfwSetWindowSizeWayland(window, width, height);
+}
+
+GLFWbool _glfwWindowFocusedWayland(_GLFWwindow* window)
+{
+    return _glfw.wl.keyboardFocus == window;
+}
+
+GLFWbool _glfwWindowIconifiedWayland(_GLFWwindow* window)
+{
+    // xdg-shell doesn’t give any way to request whether a surface is
+    // iconified.
+    return GLFW_FALSE;
+}
+
+GLFWbool _glfwWindowVisibleWayland(_GLFWwindow* window)
+{
+    return window->wl.visible;
+}
+
+GLFWbool _glfwWindowMaximizedWayland(_GLFWwindow* window)
+{
+    return window->wl.maximized;
+}
+
+GLFWbool _glfwWindowHoveredWayland(_GLFWwindow* window)
+{
+    return window->wl.hovered;
+}
+
+GLFWbool _glfwFramebufferTransparentWayland(_GLFWwindow* window)
+{
+    return window->wl.transparent;
+}
+
+void _glfwSetWindowResizableWayland(_GLFWwindow* window, GLFWbool enabled)
+{
+    if (window->wl.libdecor.frame)
+    {
+        if (enabled)
+        {
+            libdecor_frame_set_capabilities(window->wl.libdecor.frame,
+                                            LIBDECOR_ACTION_RESIZE);
+        }
+        else
+        {
+            libdecor_frame_unset_capabilities(window->wl.libdecor.frame,
+                                              LIBDECOR_ACTION_RESIZE);
+        }
+    }
+    else if (window->wl.xdg.toplevel)
+        updateXdgSizeLimits(window);
+}
+
+void _glfwSetWindowDecoratedWayland(_GLFWwindow* window, GLFWbool enabled)
+{
+    if (window->wl.libdecor.frame)
+    {
+        libdecor_frame_set_visibility(window->wl.libdecor.frame, enabled);
+    }
+    else if (window->wl.xdg.decoration)
+    {
+        uint32_t mode;
+
+        if (enabled)
+            mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE;
+        else
+            mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE;
+
+        zxdg_toplevel_decoration_v1_set_mode(window->wl.xdg.decoration, mode);
+    }
+    else if (window->wl.xdg.toplevel)
+    {
+        if (enabled)
+            createFallbackDecorations(window);
+        else
+            destroyFallbackDecorations(window);
+    }
+}
+
+void _glfwSetWindowFloatingWayland(_GLFWwindow* window, GLFWbool enabled)
+{
+    _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                    "Wayland: Platform does not support making a window floating");
+}
+
+void _glfwSetWindowMousePassthroughWayland(_GLFWwindow* window, GLFWbool enabled)
+{
+    if (enabled)
+    {
+        struct wl_region* region = wl_compositor_create_region(_glfw.wl.compositor);
+        wl_surface_set_input_region(window->wl.surface, region);
+        wl_region_destroy(region);
+    }
+    else
+        wl_surface_set_input_region(window->wl.surface, NULL);
+}
+
+float _glfwGetWindowOpacityWayland(_GLFWwindow* window)
+{
+    return 1.f;
+}
+
+void _glfwSetWindowOpacityWayland(_GLFWwindow* window, float opacity)
+{
+    _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                    "Wayland: The platform does not support setting the window opacity");
+}
+
+void _glfwSetRawMouseMotionWayland(_GLFWwindow* window, GLFWbool enabled)
+{
+    // This is handled in relativePointerHandleRelativeMotion
+}
+
+GLFWbool _glfwRawMouseMotionSupportedWayland(void)
+{
+    return GLFW_TRUE;
+}
+
+void _glfwPollEventsWayland(void)
+{
+    double timeout = 0.0;
+    handleEvents(&timeout);
+}
+
+void _glfwWaitEventsWayland(void)
+{
+    handleEvents(NULL);
+}
+
+void _glfwWaitEventsTimeoutWayland(double timeout)
+{
+    handleEvents(&timeout);
+}
+
+void _glfwPostEmptyEventWayland(void)
+{
+    wl_display_sync(_glfw.wl.display);
+    flushDisplay();
+}
+
+void _glfwGetCursorPosWayland(_GLFWwindow* window, double* xpos, double* ypos)
+{
+    if (xpos)
+        *xpos = window->wl.cursorPosX;
+    if (ypos)
+        *ypos = window->wl.cursorPosY;
+}
+
+void _glfwSetCursorPosWayland(_GLFWwindow* window, double x, double y)
+{
+    _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                    "Wayland: The platform does not support setting the cursor position");
+}
+
+void _glfwSetCursorModeWayland(_GLFWwindow* window, int mode)
+{
+    _glfwSetCursorWayland(window, window->wl.currentCursor);
+}
+
+const char* _glfwGetScancodeNameWayland(int scancode)
+{
+    if (scancode < 0 || scancode > 255)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE,
+                        "Wayland: Invalid scancode %i",
+                        scancode);
+        return NULL;
+    }
+
+    const int key = _glfw.wl.keycodes[scancode];
+    if (key == GLFW_KEY_UNKNOWN)
+        return NULL;
+
+    const xkb_keycode_t keycode = scancode + 8;
+    const xkb_layout_index_t layout =
+        xkb_state_key_get_layout(_glfw.wl.xkb.state, keycode);
+    if (layout == XKB_LAYOUT_INVALID)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to retrieve layout for key name");
+        return NULL;
+    }
+
+    const xkb_keysym_t* keysyms = NULL;
+    xkb_keymap_key_get_syms_by_level(_glfw.wl.xkb.keymap,
+                                     keycode,
+                                     layout,
+                                     0,
+                                     &keysyms);
+    if (keysyms == NULL)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to retrieve keysym for key name");
+        return NULL;
+    }
+
+    const uint32_t codepoint = _glfwKeySym2Unicode(keysyms[0]);
+    if (codepoint == GLFW_INVALID_CODEPOINT)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to retrieve codepoint for key name");
+        return NULL;
+    }
+
+    const size_t count = _glfwEncodeUTF8(_glfw.wl.keynames[key],  codepoint);
+    if (count == 0)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to encode codepoint for key name");
+        return NULL;
+    }
+
+    _glfw.wl.keynames[key][count] = '\0';
+    return _glfw.wl.keynames[key];
+}
+
+int _glfwGetKeyScancodeWayland(int key)
+{
+    return _glfw.wl.scancodes[key];
+}
+
+GLFWbool _glfwCreateCursorWayland(_GLFWcursor* cursor,
+                                  const GLFWimage* image,
+                                  int xhot, int yhot)
+{
+    cursor->wl.buffer = createShmBuffer(image);
+    if (!cursor->wl.buffer)
+        return GLFW_FALSE;
+
+    cursor->wl.width = image->width;
+    cursor->wl.height = image->height;
+    cursor->wl.xhot = xhot;
+    cursor->wl.yhot = yhot;
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwCreateStandardCursorWayland(_GLFWcursor* cursor, int shape)
+{
+    const char* name = NULL;
+
+    // Try the XDG names first
+    switch (shape)
+    {
+        case GLFW_ARROW_CURSOR:
+            name = "default";
+            break;
+        case GLFW_IBEAM_CURSOR:
+            name = "text";
+            break;
+        case GLFW_CROSSHAIR_CURSOR:
+            name = "crosshair";
+            break;
+        case GLFW_POINTING_HAND_CURSOR:
+            name = "pointer";
+            break;
+        case GLFW_RESIZE_EW_CURSOR:
+            name = "ew-resize";
+            break;
+        case GLFW_RESIZE_NS_CURSOR:
+            name = "ns-resize";
+            break;
+        case GLFW_RESIZE_NWSE_CURSOR:
+            name = "nwse-resize";
+            break;
+        case GLFW_RESIZE_NESW_CURSOR:
+            name = "nesw-resize";
+            break;
+        case GLFW_RESIZE_ALL_CURSOR:
+            name = "all-scroll";
+            break;
+        case GLFW_NOT_ALLOWED_CURSOR:
+            name = "not-allowed";
+            break;
+    }
+
+    cursor->wl.cursor = wl_cursor_theme_get_cursor(_glfw.wl.cursorTheme, name);
+
+    if (_glfw.wl.cursorThemeHiDPI)
+    {
+        cursor->wl.cursorHiDPI =
+            wl_cursor_theme_get_cursor(_glfw.wl.cursorThemeHiDPI, name);
+    }
+
+    if (!cursor->wl.cursor)
+    {
+        // Fall back to the core X11 names
+        switch (shape)
+        {
+            case GLFW_ARROW_CURSOR:
+                name = "left_ptr";
+                break;
+            case GLFW_IBEAM_CURSOR:
+                name = "xterm";
+                break;
+            case GLFW_CROSSHAIR_CURSOR:
+                name = "crosshair";
+                break;
+            case GLFW_POINTING_HAND_CURSOR:
+                name = "hand2";
+                break;
+            case GLFW_RESIZE_EW_CURSOR:
+                name = "sb_h_double_arrow";
+                break;
+            case GLFW_RESIZE_NS_CURSOR:
+                name = "sb_v_double_arrow";
+                break;
+            case GLFW_RESIZE_ALL_CURSOR:
+                name = "fleur";
+                break;
+            default:
+                _glfwInputError(GLFW_CURSOR_UNAVAILABLE,
+                                "Wayland: Standard cursor shape unavailable");
+                return GLFW_FALSE;
+        }
+
+        cursor->wl.cursor = wl_cursor_theme_get_cursor(_glfw.wl.cursorTheme, name);
+        if (!cursor->wl.cursor)
+        {
+            _glfwInputError(GLFW_CURSOR_UNAVAILABLE,
+                            "Wayland: Failed to create standard cursor \"%s\"",
+                            name);
+            return GLFW_FALSE;
+        }
+
+        if (_glfw.wl.cursorThemeHiDPI)
+        {
+            if (!cursor->wl.cursorHiDPI)
+            {
+                cursor->wl.cursorHiDPI =
+                    wl_cursor_theme_get_cursor(_glfw.wl.cursorThemeHiDPI, name);
+            }
+        }
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwDestroyCursorWayland(_GLFWcursor* cursor)
+{
+    // If it's a standard cursor we don't need to do anything here
+    if (cursor->wl.cursor)
+        return;
+
+    if (cursor->wl.buffer)
+        wl_buffer_destroy(cursor->wl.buffer);
+}
+
+static void relativePointerHandleRelativeMotion(void* userData,
+                                                struct zwp_relative_pointer_v1* pointer,
+                                                uint32_t timeHi,
+                                                uint32_t timeLo,
+                                                wl_fixed_t dx,
+                                                wl_fixed_t dy,
+                                                wl_fixed_t dxUnaccel,
+                                                wl_fixed_t dyUnaccel)
+{
+    _GLFWwindow* window = userData;
+    double xpos = window->virtualCursorPosX;
+    double ypos = window->virtualCursorPosY;
+
+    if (window->cursorMode != GLFW_CURSOR_DISABLED)
+        return;
+
+    if (window->rawMouseMotion)
+    {
+        xpos += wl_fixed_to_double(dxUnaccel);
+        ypos += wl_fixed_to_double(dyUnaccel);
+    }
+    else
+    {
+        xpos += wl_fixed_to_double(dx);
+        ypos += wl_fixed_to_double(dy);
+    }
+
+    _glfwInputCursorPos(window, xpos, ypos);
+}
+
+static const struct zwp_relative_pointer_v1_listener relativePointerListener =
+{
+    relativePointerHandleRelativeMotion
+};
+
+static void lockedPointerHandleLocked(void* userData,
+                                      struct zwp_locked_pointer_v1* lockedPointer)
+{
+}
+
+static void lockedPointerHandleUnlocked(void* userData,
+                                        struct zwp_locked_pointer_v1* lockedPointer)
+{
+}
+
+static const struct zwp_locked_pointer_v1_listener lockedPointerListener =
+{
+    lockedPointerHandleLocked,
+    lockedPointerHandleUnlocked
+};
+
+static void lockPointer(_GLFWwindow* window)
+{
+    if (!_glfw.wl.relativePointerManager)
+    {
+        _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                        "Wayland: The compositor does not support pointer locking");
+        return;
+    }
+
+    window->wl.relativePointer =
+        zwp_relative_pointer_manager_v1_get_relative_pointer(
+            _glfw.wl.relativePointerManager,
+            _glfw.wl.pointer);
+    zwp_relative_pointer_v1_add_listener(window->wl.relativePointer,
+                                         &relativePointerListener,
+                                         window);
+
+    window->wl.lockedPointer =
+        zwp_pointer_constraints_v1_lock_pointer(
+            _glfw.wl.pointerConstraints,
+            window->wl.surface,
+            _glfw.wl.pointer,
+            NULL,
+            ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT);
+    zwp_locked_pointer_v1_add_listener(window->wl.lockedPointer,
+                                       &lockedPointerListener,
+                                       window);
+}
+
+static void unlockPointer(_GLFWwindow* window)
+{
+    zwp_relative_pointer_v1_destroy(window->wl.relativePointer);
+    window->wl.relativePointer = NULL;
+
+    zwp_locked_pointer_v1_destroy(window->wl.lockedPointer);
+    window->wl.lockedPointer = NULL;
+}
+
+static void confinedPointerHandleConfined(void* userData,
+                                          struct zwp_confined_pointer_v1* confinedPointer)
+{
+}
+
+static void confinedPointerHandleUnconfined(void* userData,
+                                            struct zwp_confined_pointer_v1* confinedPointer)
+{
+}
+
+static const struct zwp_confined_pointer_v1_listener confinedPointerListener =
+{
+    confinedPointerHandleConfined,
+    confinedPointerHandleUnconfined
+};
+
+static void confinePointer(_GLFWwindow* window)
+{
+    window->wl.confinedPointer =
+        zwp_pointer_constraints_v1_confine_pointer(
+            _glfw.wl.pointerConstraints,
+            window->wl.surface,
+            _glfw.wl.pointer,
+            NULL,
+            ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT);
+
+    zwp_confined_pointer_v1_add_listener(window->wl.confinedPointer,
+                                         &confinedPointerListener,
+                                         window);
+}
+
+static void unconfinePointer(_GLFWwindow* window)
+{
+    zwp_confined_pointer_v1_destroy(window->wl.confinedPointer);
+    window->wl.confinedPointer = NULL;
+}
+
+void _glfwSetCursorWayland(_GLFWwindow* window, _GLFWcursor* cursor)
+{
+    if (!_glfw.wl.pointer)
+        return;
+
+    window->wl.currentCursor = cursor;
+
+    // If we're not in the correct window just save the cursor
+    // the next time the pointer enters the window the cursor will change
+    if (!window->wl.hovered)
+        return;
+
+    // Update pointer lock to match cursor mode
+    if (window->cursorMode == GLFW_CURSOR_DISABLED)
+    {
+        if (window->wl.confinedPointer)
+            unconfinePointer(window);
+        if (!window->wl.lockedPointer)
+            lockPointer(window);
+    }
+    else if (window->cursorMode == GLFW_CURSOR_CAPTURED)
+    {
+        if (window->wl.lockedPointer)
+            unlockPointer(window);
+        if (!window->wl.confinedPointer)
+            confinePointer(window);
+    }
+    else if (window->cursorMode == GLFW_CURSOR_NORMAL ||
+             window->cursorMode == GLFW_CURSOR_HIDDEN)
+    {
+        if (window->wl.lockedPointer)
+            unlockPointer(window);
+        else if (window->wl.confinedPointer)
+            unconfinePointer(window);
+    }
+
+    if (window->cursorMode == GLFW_CURSOR_NORMAL ||
+        window->cursorMode == GLFW_CURSOR_CAPTURED)
+    {
+        if (cursor)
+            setCursorImage(window, &cursor->wl);
+        else
+        {
+            struct wl_cursor* defaultCursor =
+                wl_cursor_theme_get_cursor(_glfw.wl.cursorTheme, "left_ptr");
+            if (!defaultCursor)
+            {
+                _glfwInputError(GLFW_PLATFORM_ERROR,
+                                "Wayland: Standard cursor not found");
+                return;
+            }
+
+            struct wl_cursor* defaultCursorHiDPI = NULL;
+            if (_glfw.wl.cursorThemeHiDPI)
+            {
+                defaultCursorHiDPI =
+                    wl_cursor_theme_get_cursor(_glfw.wl.cursorThemeHiDPI, "left_ptr");
+            }
+
+            _GLFWcursorWayland cursorWayland =
+            {
+                defaultCursor,
+                defaultCursorHiDPI,
+                NULL,
+                0, 0,
+                0, 0,
+                0
+            };
+
+            setCursorImage(window, &cursorWayland);
+        }
+    }
+    else if (window->cursorMode == GLFW_CURSOR_HIDDEN ||
+             window->cursorMode == GLFW_CURSOR_DISABLED)
+    {
+        wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerEnterSerial, NULL, 0, 0);
+    }
+}
+
+static void dataSourceHandleTarget(void* userData,
+                                   struct wl_data_source* source,
+                                   const char* mimeType)
+{
+    if (_glfw.wl.selectionSource != source)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Unknown clipboard data source");
+        return;
+    }
+}
+
+static void dataSourceHandleSend(void* userData,
+                                 struct wl_data_source* source,
+                                 const char* mimeType,
+                                 int fd)
+{
+    // Ignore it if this is an outdated or invalid request
+    if (_glfw.wl.selectionSource != source ||
+        strcmp(mimeType, "text/plain;charset=utf-8") != 0)
+    {
+        close(fd);
+        return;
+    }
+
+    char* string = _glfw.wl.clipboardString;
+    size_t length = strlen(string);
+
+    while (length > 0)
+    {
+        const ssize_t result = write(fd, string, length);
+        if (result == -1)
+        {
+            if (errno == EINTR)
+                continue;
+
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Wayland: Error while writing the clipboard: %s",
+                            strerror(errno));
+            break;
+        }
+
+        length -= result;
+        string += result;
+    }
+
+    close(fd);
+}
+
+static void dataSourceHandleCancelled(void* userData,
+                                      struct wl_data_source* source)
+{
+    wl_data_source_destroy(source);
+
+    if (_glfw.wl.selectionSource != source)
+        return;
+
+    _glfw.wl.selectionSource = NULL;
+}
+
+static const struct wl_data_source_listener dataSourceListener =
+{
+    dataSourceHandleTarget,
+    dataSourceHandleSend,
+    dataSourceHandleCancelled,
+};
+
+void _glfwSetClipboardStringWayland(const char* string)
+{
+    if (_glfw.wl.selectionSource)
+    {
+        wl_data_source_destroy(_glfw.wl.selectionSource);
+        _glfw.wl.selectionSource = NULL;
+    }
+
+    char* copy = _glfw_strdup(string);
+    if (!copy)
+    {
+        _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
+        return;
+    }
+
+    _glfw_free(_glfw.wl.clipboardString);
+    _glfw.wl.clipboardString = copy;
+
+    _glfw.wl.selectionSource =
+        wl_data_device_manager_create_data_source(_glfw.wl.dataDeviceManager);
+    if (!_glfw.wl.selectionSource)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to create clipboard data source");
+        return;
+    }
+    wl_data_source_add_listener(_glfw.wl.selectionSource,
+                                &dataSourceListener,
+                                NULL);
+    wl_data_source_offer(_glfw.wl.selectionSource, "text/plain;charset=utf-8");
+    wl_data_device_set_selection(_glfw.wl.dataDevice,
+                                 _glfw.wl.selectionSource,
+                                 _glfw.wl.serial);
+}
+
+const char* _glfwGetClipboardStringWayland(void)
+{
+    if (!_glfw.wl.selectionOffer)
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "Wayland: No clipboard data available");
+        return NULL;
+    }
+
+    if (_glfw.wl.selectionSource)
+        return _glfw.wl.clipboardString;
+
+    _glfw_free(_glfw.wl.clipboardString);
+    _glfw.wl.clipboardString =
+        readDataOfferAsString(_glfw.wl.selectionOffer, "text/plain;charset=utf-8");
+    return _glfw.wl.clipboardString;
+}
+
+EGLenum _glfwGetEGLPlatformWayland(EGLint** attribs)
+{
+    if (_glfw.egl.EXT_platform_base && _glfw.egl.EXT_platform_wayland)
+        return EGL_PLATFORM_WAYLAND_EXT;
+    else
+        return 0;
+}
+
+EGLNativeDisplayType _glfwGetEGLNativeDisplayWayland(void)
+{
+    return _glfw.wl.display;
+}
+
+EGLNativeWindowType _glfwGetEGLNativeWindowWayland(_GLFWwindow* window)
+{
+    return window->wl.egl.window;
+}
+
+void _glfwGetRequiredInstanceExtensionsWayland(char** extensions)
+{
+    if (!_glfw.vk.KHR_surface || !_glfw.vk.KHR_wayland_surface)
+        return;
+
+    extensions[0] = "VK_KHR_surface";
+    extensions[1] = "VK_KHR_wayland_surface";
+}
+
+GLFWbool _glfwGetPhysicalDevicePresentationSupportWayland(VkInstance instance,
+                                                          VkPhysicalDevice device,
+                                                          uint32_t queuefamily)
+{
+    PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR
+        vkGetPhysicalDeviceWaylandPresentationSupportKHR =
+        (PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR)
+        vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceWaylandPresentationSupportKHR");
+    if (!vkGetPhysicalDeviceWaylandPresentationSupportKHR)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Wayland: Vulkan instance missing VK_KHR_wayland_surface extension");
+        return VK_NULL_HANDLE;
+    }
+
+    return vkGetPhysicalDeviceWaylandPresentationSupportKHR(device,
+                                                            queuefamily,
+                                                            _glfw.wl.display);
+}
+
+VkResult _glfwCreateWindowSurfaceWayland(VkInstance instance,
+                                         _GLFWwindow* window,
+                                         const VkAllocationCallbacks* allocator,
+                                         VkSurfaceKHR* surface)
+{
+    VkResult err;
+    VkWaylandSurfaceCreateInfoKHR sci;
+    PFN_vkCreateWaylandSurfaceKHR vkCreateWaylandSurfaceKHR;
+
+    vkCreateWaylandSurfaceKHR = (PFN_vkCreateWaylandSurfaceKHR)
+        vkGetInstanceProcAddr(instance, "vkCreateWaylandSurfaceKHR");
+    if (!vkCreateWaylandSurfaceKHR)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Wayland: Vulkan instance missing VK_KHR_wayland_surface extension");
+        return VK_ERROR_EXTENSION_NOT_PRESENT;
+    }
+
+    memset(&sci, 0, sizeof(sci));
+    sci.sType = VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR;
+    sci.display = _glfw.wl.display;
+    sci.surface = window->wl.surface;
+
+    err = vkCreateWaylandSurfaceKHR(instance, &sci, allocator, surface);
+    if (err)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Failed to create Vulkan surface: %s",
+                        _glfwGetVulkanResultString(err));
+    }
+
+    return err;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI struct wl_display* glfwGetWaylandDisplay(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_WAYLAND)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE,
+                        "Wayland: Platform not initialized");
+        return NULL;
+    }
+
+    return _glfw.wl.display;
+}
+
+GLFWAPI struct wl_surface* glfwGetWaylandWindow(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_WAYLAND)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE,
+                        "Wayland: Platform not initialized");
+        return NULL;
+    }
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    return window->wl.surface;
+}
+
+#endif // _GLFW_WAYLAND
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/x11_init.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/x11_init.c
new file mode 100644
index 000000000000..982c526c60ba
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/x11_init.c
@@ -0,0 +1,1656 @@
+//========================================================================
+// GLFW 3.5 X11 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_X11)
+
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <stdio.h>
+#include <locale.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <assert.h>
+
+
+// Translate the X11 KeySyms for a key to a GLFW key code
+// NOTE: This is only used as a fallback, in case the XKB method fails
+//       It is layout-dependent and will fail partially on most non-US layouts
+//
+static int translateKeySyms(const KeySym* keysyms, int width)
+{
+    if (width > 1)
+    {
+        switch (keysyms[1])
+        {
+            case XK_KP_0:           return GLFW_KEY_KP_0;
+            case XK_KP_1:           return GLFW_KEY_KP_1;
+            case XK_KP_2:           return GLFW_KEY_KP_2;
+            case XK_KP_3:           return GLFW_KEY_KP_3;
+            case XK_KP_4:           return GLFW_KEY_KP_4;
+            case XK_KP_5:           return GLFW_KEY_KP_5;
+            case XK_KP_6:           return GLFW_KEY_KP_6;
+            case XK_KP_7:           return GLFW_KEY_KP_7;
+            case XK_KP_8:           return GLFW_KEY_KP_8;
+            case XK_KP_9:           return GLFW_KEY_KP_9;
+            case XK_KP_Separator:
+            case XK_KP_Decimal:     return GLFW_KEY_KP_DECIMAL;
+            case XK_KP_Equal:       return GLFW_KEY_KP_EQUAL;
+            case XK_KP_Enter:       return GLFW_KEY_KP_ENTER;
+            default:                break;
+        }
+    }
+
+    switch (keysyms[0])
+    {
+        case XK_Escape:         return GLFW_KEY_ESCAPE;
+        case XK_Tab:            return GLFW_KEY_TAB;
+        case XK_Shift_L:        return GLFW_KEY_LEFT_SHIFT;
+        case XK_Shift_R:        return GLFW_KEY_RIGHT_SHIFT;
+        case XK_Control_L:      return GLFW_KEY_LEFT_CONTROL;
+        case XK_Control_R:      return GLFW_KEY_RIGHT_CONTROL;
+        case XK_Meta_L:
+        case XK_Alt_L:          return GLFW_KEY_LEFT_ALT;
+        case XK_Mode_switch: // Mapped to Alt_R on many keyboards
+        case XK_ISO_Level3_Shift: // AltGr on at least some machines
+        case XK_Meta_R:
+        case XK_Alt_R:          return GLFW_KEY_RIGHT_ALT;
+        case XK_Super_L:        return GLFW_KEY_LEFT_SUPER;
+        case XK_Super_R:        return GLFW_KEY_RIGHT_SUPER;
+        case XK_Menu:           return GLFW_KEY_MENU;
+        case XK_Num_Lock:       return GLFW_KEY_NUM_LOCK;
+        case XK_Caps_Lock:      return GLFW_KEY_CAPS_LOCK;
+        case XK_Print:          return GLFW_KEY_PRINT_SCREEN;
+        case XK_Scroll_Lock:    return GLFW_KEY_SCROLL_LOCK;
+        case XK_Pause:          return GLFW_KEY_PAUSE;
+        case XK_Delete:         return GLFW_KEY_DELETE;
+        case XK_BackSpace:      return GLFW_KEY_BACKSPACE;
+        case XK_Return:         return GLFW_KEY_ENTER;
+        case XK_Home:           return GLFW_KEY_HOME;
+        case XK_End:            return GLFW_KEY_END;
+        case XK_Page_Up:        return GLFW_KEY_PAGE_UP;
+        case XK_Page_Down:      return GLFW_KEY_PAGE_DOWN;
+        case XK_Insert:         return GLFW_KEY_INSERT;
+        case XK_Left:           return GLFW_KEY_LEFT;
+        case XK_Right:          return GLFW_KEY_RIGHT;
+        case XK_Down:           return GLFW_KEY_DOWN;
+        case XK_Up:             return GLFW_KEY_UP;
+        case XK_F1:             return GLFW_KEY_F1;
+        case XK_F2:             return GLFW_KEY_F2;
+        case XK_F3:             return GLFW_KEY_F3;
+        case XK_F4:             return GLFW_KEY_F4;
+        case XK_F5:             return GLFW_KEY_F5;
+        case XK_F6:             return GLFW_KEY_F6;
+        case XK_F7:             return GLFW_KEY_F7;
+        case XK_F8:             return GLFW_KEY_F8;
+        case XK_F9:             return GLFW_KEY_F9;
+        case XK_F10:            return GLFW_KEY_F10;
+        case XK_F11:            return GLFW_KEY_F11;
+        case XK_F12:            return GLFW_KEY_F12;
+        case XK_F13:            return GLFW_KEY_F13;
+        case XK_F14:            return GLFW_KEY_F14;
+        case XK_F15:            return GLFW_KEY_F15;
+        case XK_F16:            return GLFW_KEY_F16;
+        case XK_F17:            return GLFW_KEY_F17;
+        case XK_F18:            return GLFW_KEY_F18;
+        case XK_F19:            return GLFW_KEY_F19;
+        case XK_F20:            return GLFW_KEY_F20;
+        case XK_F21:            return GLFW_KEY_F21;
+        case XK_F22:            return GLFW_KEY_F22;
+        case XK_F23:            return GLFW_KEY_F23;
+        case XK_F24:            return GLFW_KEY_F24;
+        case XK_F25:            return GLFW_KEY_F25;
+
+        // Numeric keypad
+        case XK_KP_Divide:      return GLFW_KEY_KP_DIVIDE;
+        case XK_KP_Multiply:    return GLFW_KEY_KP_MULTIPLY;
+        case XK_KP_Subtract:    return GLFW_KEY_KP_SUBTRACT;
+        case XK_KP_Add:         return GLFW_KEY_KP_ADD;
+
+        // These should have been detected in secondary keysym test above!
+        case XK_KP_Insert:      return GLFW_KEY_KP_0;
+        case XK_KP_End:         return GLFW_KEY_KP_1;
+        case XK_KP_Down:        return GLFW_KEY_KP_2;
+        case XK_KP_Page_Down:   return GLFW_KEY_KP_3;
+        case XK_KP_Left:        return GLFW_KEY_KP_4;
+        case XK_KP_Right:       return GLFW_KEY_KP_6;
+        case XK_KP_Home:        return GLFW_KEY_KP_7;
+        case XK_KP_Up:          return GLFW_KEY_KP_8;
+        case XK_KP_Page_Up:     return GLFW_KEY_KP_9;
+        case XK_KP_Delete:      return GLFW_KEY_KP_DECIMAL;
+        case XK_KP_Equal:       return GLFW_KEY_KP_EQUAL;
+        case XK_KP_Enter:       return GLFW_KEY_KP_ENTER;
+
+        // Last resort: Check for printable keys (should not happen if the XKB
+        // extension is available). This will give a layout dependent mapping
+        // (which is wrong, and we may miss some keys, especially on non-US
+        // keyboards), but it's better than nothing...
+        case XK_a:              return GLFW_KEY_A;
+        case XK_b:              return GLFW_KEY_B;
+        case XK_c:              return GLFW_KEY_C;
+        case XK_d:              return GLFW_KEY_D;
+        case XK_e:              return GLFW_KEY_E;
+        case XK_f:              return GLFW_KEY_F;
+        case XK_g:              return GLFW_KEY_G;
+        case XK_h:              return GLFW_KEY_H;
+        case XK_i:              return GLFW_KEY_I;
+        case XK_j:              return GLFW_KEY_J;
+        case XK_k:              return GLFW_KEY_K;
+        case XK_l:              return GLFW_KEY_L;
+        case XK_m:              return GLFW_KEY_M;
+        case XK_n:              return GLFW_KEY_N;
+        case XK_o:              return GLFW_KEY_O;
+        case XK_p:              return GLFW_KEY_P;
+        case XK_q:              return GLFW_KEY_Q;
+        case XK_r:              return GLFW_KEY_R;
+        case XK_s:              return GLFW_KEY_S;
+        case XK_t:              return GLFW_KEY_T;
+        case XK_u:              return GLFW_KEY_U;
+        case XK_v:              return GLFW_KEY_V;
+        case XK_w:              return GLFW_KEY_W;
+        case XK_x:              return GLFW_KEY_X;
+        case XK_y:              return GLFW_KEY_Y;
+        case XK_z:              return GLFW_KEY_Z;
+        case XK_1:              return GLFW_KEY_1;
+        case XK_2:              return GLFW_KEY_2;
+        case XK_3:              return GLFW_KEY_3;
+        case XK_4:              return GLFW_KEY_4;
+        case XK_5:              return GLFW_KEY_5;
+        case XK_6:              return GLFW_KEY_6;
+        case XK_7:              return GLFW_KEY_7;
+        case XK_8:              return GLFW_KEY_8;
+        case XK_9:              return GLFW_KEY_9;
+        case XK_0:              return GLFW_KEY_0;
+        case XK_space:          return GLFW_KEY_SPACE;
+        case XK_minus:          return GLFW_KEY_MINUS;
+        case XK_equal:          return GLFW_KEY_EQUAL;
+        case XK_bracketleft:    return GLFW_KEY_LEFT_BRACKET;
+        case XK_bracketright:   return GLFW_KEY_RIGHT_BRACKET;
+        case XK_backslash:      return GLFW_KEY_BACKSLASH;
+        case XK_semicolon:      return GLFW_KEY_SEMICOLON;
+        case XK_apostrophe:     return GLFW_KEY_APOSTROPHE;
+        case XK_grave:          return GLFW_KEY_GRAVE_ACCENT;
+        case XK_comma:          return GLFW_KEY_COMMA;
+        case XK_period:         return GLFW_KEY_PERIOD;
+        case XK_slash:          return GLFW_KEY_SLASH;
+        case XK_less:           return GLFW_KEY_WORLD_1; // At least in some layouts...
+        default:                break;
+    }
+
+    // No matching translation was found
+    return GLFW_KEY_UNKNOWN;
+}
+
+// Create key code translation tables
+//
+static void createKeyTables(void)
+{
+    int scancodeMin, scancodeMax;
+
+    memset(_glfw.x11.keycodes, -1, sizeof(_glfw.x11.keycodes));
+    memset(_glfw.x11.scancodes, -1, sizeof(_glfw.x11.scancodes));
+
+    if (_glfw.x11.xkb.available)
+    {
+        // Use XKB to determine physical key locations independently of the
+        // current keyboard layout
+
+        XkbDescPtr desc = XkbGetMap(_glfw.x11.display, 0, XkbUseCoreKbd);
+        XkbGetNames(_glfw.x11.display, XkbKeyNamesMask | XkbKeyAliasesMask, desc);
+
+        scancodeMin = desc->min_key_code;
+        scancodeMax = desc->max_key_code;
+
+        const struct
+        {
+            int key;
+            char* name;
+        } keymap[] =
+        {
+            { GLFW_KEY_GRAVE_ACCENT, "TLDE" },
+            { GLFW_KEY_1, "AE01" },
+            { GLFW_KEY_2, "AE02" },
+            { GLFW_KEY_3, "AE03" },
+            { GLFW_KEY_4, "AE04" },
+            { GLFW_KEY_5, "AE05" },
+            { GLFW_KEY_6, "AE06" },
+            { GLFW_KEY_7, "AE07" },
+            { GLFW_KEY_8, "AE08" },
+            { GLFW_KEY_9, "AE09" },
+            { GLFW_KEY_0, "AE10" },
+            { GLFW_KEY_MINUS, "AE11" },
+            { GLFW_KEY_EQUAL, "AE12" },
+            { GLFW_KEY_Q, "AD01" },
+            { GLFW_KEY_W, "AD02" },
+            { GLFW_KEY_E, "AD03" },
+            { GLFW_KEY_R, "AD04" },
+            { GLFW_KEY_T, "AD05" },
+            { GLFW_KEY_Y, "AD06" },
+            { GLFW_KEY_U, "AD07" },
+            { GLFW_KEY_I, "AD08" },
+            { GLFW_KEY_O, "AD09" },
+            { GLFW_KEY_P, "AD10" },
+            { GLFW_KEY_LEFT_BRACKET, "AD11" },
+            { GLFW_KEY_RIGHT_BRACKET, "AD12" },
+            { GLFW_KEY_A, "AC01" },
+            { GLFW_KEY_S, "AC02" },
+            { GLFW_KEY_D, "AC03" },
+            { GLFW_KEY_F, "AC04" },
+            { GLFW_KEY_G, "AC05" },
+            { GLFW_KEY_H, "AC06" },
+            { GLFW_KEY_J, "AC07" },
+            { GLFW_KEY_K, "AC08" },
+            { GLFW_KEY_L, "AC09" },
+            { GLFW_KEY_SEMICOLON, "AC10" },
+            { GLFW_KEY_APOSTROPHE, "AC11" },
+            { GLFW_KEY_Z, "AB01" },
+            { GLFW_KEY_X, "AB02" },
+            { GLFW_KEY_C, "AB03" },
+            { GLFW_KEY_V, "AB04" },
+            { GLFW_KEY_B, "AB05" },
+            { GLFW_KEY_N, "AB06" },
+            { GLFW_KEY_M, "AB07" },
+            { GLFW_KEY_COMMA, "AB08" },
+            { GLFW_KEY_PERIOD, "AB09" },
+            { GLFW_KEY_SLASH, "AB10" },
+            { GLFW_KEY_BACKSLASH, "BKSL" },
+            { GLFW_KEY_WORLD_1, "LSGT" },
+            { GLFW_KEY_SPACE, "SPCE" },
+            { GLFW_KEY_ESCAPE, "ESC" },
+            { GLFW_KEY_ENTER, "RTRN" },
+            { GLFW_KEY_TAB, "TAB" },
+            { GLFW_KEY_BACKSPACE, "BKSP" },
+            { GLFW_KEY_INSERT, "INS" },
+            { GLFW_KEY_DELETE, "DELE" },
+            { GLFW_KEY_RIGHT, "RGHT" },
+            { GLFW_KEY_LEFT, "LEFT" },
+            { GLFW_KEY_DOWN, "DOWN" },
+            { GLFW_KEY_UP, "UP" },
+            { GLFW_KEY_PAGE_UP, "PGUP" },
+            { GLFW_KEY_PAGE_DOWN, "PGDN" },
+            { GLFW_KEY_HOME, "HOME" },
+            { GLFW_KEY_END, "END" },
+            { GLFW_KEY_CAPS_LOCK, "CAPS" },
+            { GLFW_KEY_SCROLL_LOCK, "SCLK" },
+            { GLFW_KEY_NUM_LOCK, "NMLK" },
+            { GLFW_KEY_PRINT_SCREEN, "PRSC" },
+            { GLFW_KEY_PAUSE, "PAUS" },
+            { GLFW_KEY_F1, "FK01" },
+            { GLFW_KEY_F2, "FK02" },
+            { GLFW_KEY_F3, "FK03" },
+            { GLFW_KEY_F4, "FK04" },
+            { GLFW_KEY_F5, "FK05" },
+            { GLFW_KEY_F6, "FK06" },
+            { GLFW_KEY_F7, "FK07" },
+            { GLFW_KEY_F8, "FK08" },
+            { GLFW_KEY_F9, "FK09" },
+            { GLFW_KEY_F10, "FK10" },
+            { GLFW_KEY_F11, "FK11" },
+            { GLFW_KEY_F12, "FK12" },
+            { GLFW_KEY_F13, "FK13" },
+            { GLFW_KEY_F14, "FK14" },
+            { GLFW_KEY_F15, "FK15" },
+            { GLFW_KEY_F16, "FK16" },
+            { GLFW_KEY_F17, "FK17" },
+            { GLFW_KEY_F18, "FK18" },
+            { GLFW_KEY_F19, "FK19" },
+            { GLFW_KEY_F20, "FK20" },
+            { GLFW_KEY_F21, "FK21" },
+            { GLFW_KEY_F22, "FK22" },
+            { GLFW_KEY_F23, "FK23" },
+            { GLFW_KEY_F24, "FK24" },
+            { GLFW_KEY_F25, "FK25" },
+            { GLFW_KEY_KP_0, "KP0" },
+            { GLFW_KEY_KP_1, "KP1" },
+            { GLFW_KEY_KP_2, "KP2" },
+            { GLFW_KEY_KP_3, "KP3" },
+            { GLFW_KEY_KP_4, "KP4" },
+            { GLFW_KEY_KP_5, "KP5" },
+            { GLFW_KEY_KP_6, "KP6" },
+            { GLFW_KEY_KP_7, "KP7" },
+            { GLFW_KEY_KP_8, "KP8" },
+            { GLFW_KEY_KP_9, "KP9" },
+            { GLFW_KEY_KP_DECIMAL, "KPDL" },
+            { GLFW_KEY_KP_DIVIDE, "KPDV" },
+            { GLFW_KEY_KP_MULTIPLY, "KPMU" },
+            { GLFW_KEY_KP_SUBTRACT, "KPSU" },
+            { GLFW_KEY_KP_ADD, "KPAD" },
+            { GLFW_KEY_KP_ENTER, "KPEN" },
+            { GLFW_KEY_KP_EQUAL, "KPEQ" },
+            { GLFW_KEY_LEFT_SHIFT, "LFSH" },
+            { GLFW_KEY_LEFT_CONTROL, "LCTL" },
+            { GLFW_KEY_LEFT_ALT, "LALT" },
+            { GLFW_KEY_LEFT_SUPER, "LWIN" },
+            { GLFW_KEY_RIGHT_SHIFT, "RTSH" },
+            { GLFW_KEY_RIGHT_CONTROL, "RCTL" },
+            { GLFW_KEY_RIGHT_ALT, "RALT" },
+            { GLFW_KEY_RIGHT_ALT, "LVL3" },
+            { GLFW_KEY_RIGHT_ALT, "MDSW" },
+            { GLFW_KEY_RIGHT_SUPER, "RWIN" },
+            { GLFW_KEY_MENU, "MENU" }
+        };
+
+        // Find the X11 key code -> GLFW key code mapping
+        for (int scancode = scancodeMin;  scancode <= scancodeMax;  scancode++)
+        {
+            int key = GLFW_KEY_UNKNOWN;
+
+            // Map the key name to a GLFW key code. Note: We use the US
+            // keyboard layout. Because function keys aren't mapped correctly
+            // when using traditional KeySym translations, they are mapped
+            // here instead.
+            for (int i = 0;  i < sizeof(keymap) / sizeof(keymap[0]);  i++)
+            {
+                if (strncmp(desc->names->keys[scancode].name,
+                            keymap[i].name,
+                            XkbKeyNameLength) == 0)
+                {
+                    key = keymap[i].key;
+                    break;
+                }
+            }
+
+            // Fall back to key aliases in case the key name did not match
+            for (int i = 0;  i < desc->names->num_key_aliases;  i++)
+            {
+                if (key != GLFW_KEY_UNKNOWN)
+                    break;
+
+                if (strncmp(desc->names->key_aliases[i].real,
+                            desc->names->keys[scancode].name,
+                            XkbKeyNameLength) != 0)
+                {
+                    continue;
+                }
+
+                for (int j = 0;  j < sizeof(keymap) / sizeof(keymap[0]);  j++)
+                {
+                    if (strncmp(desc->names->key_aliases[i].alias,
+                                keymap[j].name,
+                                XkbKeyNameLength) == 0)
+                    {
+                        key = keymap[j].key;
+                        break;
+                    }
+                }
+            }
+
+            _glfw.x11.keycodes[scancode] = key;
+        }
+
+        XkbFreeNames(desc, XkbKeyNamesMask, True);
+        XkbFreeKeyboard(desc, 0, True);
+    }
+    else
+        XDisplayKeycodes(_glfw.x11.display, &scancodeMin, &scancodeMax);
+
+    int width;
+    KeySym* keysyms = XGetKeyboardMapping(_glfw.x11.display,
+                                          scancodeMin,
+                                          scancodeMax - scancodeMin + 1,
+                                          &width);
+
+    for (int scancode = scancodeMin;  scancode <= scancodeMax;  scancode++)
+    {
+        // Translate the un-translated key codes using traditional X11 KeySym
+        // lookups
+        if (_glfw.x11.keycodes[scancode] < 0)
+        {
+            const size_t base = (scancode - scancodeMin) * width;
+            _glfw.x11.keycodes[scancode] = translateKeySyms(&keysyms[base], width);
+        }
+
+        // Store the reverse translation for faster key name lookup
+        if (_glfw.x11.keycodes[scancode] > 0)
+            _glfw.x11.scancodes[_glfw.x11.keycodes[scancode]] = scancode;
+    }
+
+    XFree(keysyms);
+}
+
+// Check whether the IM has a usable style
+//
+static GLFWbool hasUsableInputMethodStyle(void)
+{
+    GLFWbool found = GLFW_FALSE;
+    XIMStyles* styles = NULL;
+
+    if (XGetIMValues(_glfw.x11.im, XNQueryInputStyle, &styles, NULL) != NULL)
+        return GLFW_FALSE;
+
+    for (unsigned int i = 0;  i < styles->count_styles;  i++)
+    {
+        if (styles->supported_styles[i] == (XIMPreeditNothing | XIMStatusNothing))
+        {
+            found = GLFW_TRUE;
+            break;
+        }
+    }
+
+    XFree(styles);
+    return found;
+}
+
+static void inputMethodDestroyCallback(XIM im, XPointer clientData, XPointer callData)
+{
+    _glfw.x11.im = NULL;
+}
+
+static void inputMethodInstantiateCallback(Display* display,
+                                           XPointer clientData,
+                                           XPointer callData)
+{
+    if (_glfw.x11.im)
+        return;
+
+    _glfw.x11.im = XOpenIM(_glfw.x11.display, 0, NULL, NULL);
+    if (_glfw.x11.im)
+    {
+        if (!hasUsableInputMethodStyle())
+        {
+            XCloseIM(_glfw.x11.im);
+            _glfw.x11.im = NULL;
+        }
+    }
+
+    if (_glfw.x11.im)
+    {
+        XIMCallback callback;
+        callback.callback = (XIMProc) inputMethodDestroyCallback;
+        callback.client_data = NULL;
+        XSetIMValues(_glfw.x11.im, XNDestroyCallback, &callback, NULL);
+
+        for (_GLFWwindow* window = _glfw.windowListHead;  window;  window = window->next)
+            _glfwCreateInputContextX11(window);
+    }
+}
+
+// Return the atom ID only if it is listed in the specified array
+//
+static Atom getAtomIfSupported(Atom* supportedAtoms,
+                               unsigned long atomCount,
+                               const char* atomName)
+{
+    const Atom atom = XInternAtom(_glfw.x11.display, atomName, False);
+
+    for (unsigned long i = 0;  i < atomCount;  i++)
+    {
+        if (supportedAtoms[i] == atom)
+            return atom;
+    }
+
+    return None;
+}
+
+// Check whether the running window manager is EWMH-compliant
+//
+static void detectEWMH(void)
+{
+    // First we read the _NET_SUPPORTING_WM_CHECK property on the root window
+
+    Window* windowFromRoot = NULL;
+    if (!_glfwGetWindowPropertyX11(_glfw.x11.root,
+                                   _glfw.x11.NET_SUPPORTING_WM_CHECK,
+                                   XA_WINDOW,
+                                   (unsigned char**) &windowFromRoot))
+    {
+        return;
+    }
+
+    _glfwGrabErrorHandlerX11();
+
+    // If it exists, it should be the XID of a top-level window
+    // Then we look for the same property on that window
+
+    Window* windowFromChild = NULL;
+    if (!_glfwGetWindowPropertyX11(*windowFromRoot,
+                                   _glfw.x11.NET_SUPPORTING_WM_CHECK,
+                                   XA_WINDOW,
+                                   (unsigned char**) &windowFromChild))
+    {
+        XFree(windowFromRoot);
+        return;
+    }
+
+    _glfwReleaseErrorHandlerX11();
+
+    // If the property exists, it should contain the XID of the window
+
+    if (*windowFromRoot != *windowFromChild)
+    {
+        XFree(windowFromRoot);
+        XFree(windowFromChild);
+        return;
+    }
+
+    XFree(windowFromRoot);
+    XFree(windowFromChild);
+
+    // We are now fairly sure that an EWMH-compliant WM is currently running
+    // We can now start querying the WM about what features it supports by
+    // looking in the _NET_SUPPORTED property on the root window
+    // It should contain a list of supported EWMH protocol and state atoms
+
+    Atom* supportedAtoms = NULL;
+    const unsigned long atomCount =
+        _glfwGetWindowPropertyX11(_glfw.x11.root,
+                                  _glfw.x11.NET_SUPPORTED,
+                                  XA_ATOM,
+                                  (unsigned char**) &supportedAtoms);
+
+    // See which of the atoms we support that are supported by the WM
+
+    _glfw.x11.NET_WM_STATE =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_STATE");
+    _glfw.x11.NET_WM_STATE_ABOVE =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_STATE_ABOVE");
+    _glfw.x11.NET_WM_STATE_FULLSCREEN =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_STATE_FULLSCREEN");
+    _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_STATE_MAXIMIZED_VERT");
+    _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_STATE_MAXIMIZED_HORZ");
+    _glfw.x11.NET_WM_STATE_DEMANDS_ATTENTION =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_STATE_DEMANDS_ATTENTION");
+    _glfw.x11.NET_WM_FULLSCREEN_MONITORS =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_FULLSCREEN_MONITORS");
+    _glfw.x11.NET_WM_WINDOW_TYPE =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_WINDOW_TYPE");
+    _glfw.x11.NET_WM_WINDOW_TYPE_NORMAL =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_WINDOW_TYPE_NORMAL");
+    _glfw.x11.NET_WORKAREA =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_WORKAREA");
+    _glfw.x11.NET_CURRENT_DESKTOP =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_CURRENT_DESKTOP");
+    _glfw.x11.NET_ACTIVE_WINDOW =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_ACTIVE_WINDOW");
+    _glfw.x11.NET_FRAME_EXTENTS =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_FRAME_EXTENTS");
+    _glfw.x11.NET_REQUEST_FRAME_EXTENTS =
+        getAtomIfSupported(supportedAtoms, atomCount, "_NET_REQUEST_FRAME_EXTENTS");
+
+    if (supportedAtoms)
+        XFree(supportedAtoms);
+}
+
+// Look for and initialize supported X11 extensions
+//
+static GLFWbool initExtensions(void)
+{
+#if defined(__OpenBSD__) || defined(__NetBSD__)
+    _glfw.x11.vidmode.handle = _glfwPlatformLoadModule("libXxf86vm.so");
+#else
+    _glfw.x11.vidmode.handle = _glfwPlatformLoadModule("libXxf86vm.so.1");
+#endif
+    if (_glfw.x11.vidmode.handle)
+    {
+        _glfw.x11.vidmode.QueryExtension = (PFN_XF86VidModeQueryExtension)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.vidmode.handle, "XF86VidModeQueryExtension");
+        _glfw.x11.vidmode.GetGammaRamp = (PFN_XF86VidModeGetGammaRamp)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.vidmode.handle, "XF86VidModeGetGammaRamp");
+        _glfw.x11.vidmode.SetGammaRamp = (PFN_XF86VidModeSetGammaRamp)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.vidmode.handle, "XF86VidModeSetGammaRamp");
+        _glfw.x11.vidmode.GetGammaRampSize = (PFN_XF86VidModeGetGammaRampSize)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.vidmode.handle, "XF86VidModeGetGammaRampSize");
+
+        _glfw.x11.vidmode.available =
+            XF86VidModeQueryExtension(_glfw.x11.display,
+                                      &_glfw.x11.vidmode.eventBase,
+                                      &_glfw.x11.vidmode.errorBase);
+    }
+
+#if defined(__CYGWIN__)
+    _glfw.x11.xi.handle = _glfwPlatformLoadModule("libXi-6.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+    _glfw.x11.xi.handle = _glfwPlatformLoadModule("libXi.so");
+#else
+    _glfw.x11.xi.handle = _glfwPlatformLoadModule("libXi.so.6");
+#endif
+    if (_glfw.x11.xi.handle)
+    {
+        _glfw.x11.xi.QueryVersion = (PFN_XIQueryVersion)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xi.handle, "XIQueryVersion");
+        _glfw.x11.xi.SelectEvents = (PFN_XISelectEvents)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xi.handle, "XISelectEvents");
+
+        if (XQueryExtension(_glfw.x11.display,
+                            "XInputExtension",
+                            &_glfw.x11.xi.majorOpcode,
+                            &_glfw.x11.xi.eventBase,
+                            &_glfw.x11.xi.errorBase))
+        {
+            _glfw.x11.xi.major = 2;
+            _glfw.x11.xi.minor = 0;
+
+            if (XIQueryVersion(_glfw.x11.display,
+                               &_glfw.x11.xi.major,
+                               &_glfw.x11.xi.minor) == Success)
+            {
+                _glfw.x11.xi.available = GLFW_TRUE;
+            }
+        }
+    }
+
+#if defined(__CYGWIN__)
+    _glfw.x11.randr.handle = _glfwPlatformLoadModule("libXrandr-2.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+    _glfw.x11.randr.handle = _glfwPlatformLoadModule("libXrandr.so");
+#else
+    _glfw.x11.randr.handle = _glfwPlatformLoadModule("libXrandr.so.2");
+#endif
+    if (_glfw.x11.randr.handle)
+    {
+        _glfw.x11.randr.AllocGamma = (PFN_XRRAllocGamma)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRAllocGamma");
+        _glfw.x11.randr.FreeGamma = (PFN_XRRFreeGamma)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRFreeGamma");
+        _glfw.x11.randr.FreeCrtcInfo = (PFN_XRRFreeCrtcInfo)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRFreeCrtcInfo");
+        _glfw.x11.randr.FreeGamma = (PFN_XRRFreeGamma)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRFreeGamma");
+        _glfw.x11.randr.FreeOutputInfo = (PFN_XRRFreeOutputInfo)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRFreeOutputInfo");
+        _glfw.x11.randr.FreeScreenResources = (PFN_XRRFreeScreenResources)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRFreeScreenResources");
+        _glfw.x11.randr.GetCrtcGamma = (PFN_XRRGetCrtcGamma)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRGetCrtcGamma");
+        _glfw.x11.randr.GetCrtcGammaSize = (PFN_XRRGetCrtcGammaSize)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRGetCrtcGammaSize");
+        _glfw.x11.randr.GetCrtcInfo = (PFN_XRRGetCrtcInfo)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRGetCrtcInfo");
+        _glfw.x11.randr.GetOutputInfo = (PFN_XRRGetOutputInfo)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRGetOutputInfo");
+        _glfw.x11.randr.GetOutputPrimary = (PFN_XRRGetOutputPrimary)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRGetOutputPrimary");
+        _glfw.x11.randr.GetScreenResourcesCurrent = (PFN_XRRGetScreenResourcesCurrent)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRGetScreenResourcesCurrent");
+        _glfw.x11.randr.QueryExtension = (PFN_XRRQueryExtension)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRQueryExtension");
+        _glfw.x11.randr.QueryVersion = (PFN_XRRQueryVersion)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRQueryVersion");
+        _glfw.x11.randr.SelectInput = (PFN_XRRSelectInput)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRSelectInput");
+        _glfw.x11.randr.SetCrtcConfig = (PFN_XRRSetCrtcConfig)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRSetCrtcConfig");
+        _glfw.x11.randr.SetCrtcGamma = (PFN_XRRSetCrtcGamma)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRSetCrtcGamma");
+        _glfw.x11.randr.UpdateConfiguration = (PFN_XRRUpdateConfiguration)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRUpdateConfiguration");
+
+        if (XRRQueryExtension(_glfw.x11.display,
+                              &_glfw.x11.randr.eventBase,
+                              &_glfw.x11.randr.errorBase))
+        {
+            if (XRRQueryVersion(_glfw.x11.display,
+                                &_glfw.x11.randr.major,
+                                &_glfw.x11.randr.minor))
+            {
+                // The GLFW RandR path requires at least version 1.3
+                if (_glfw.x11.randr.major > 1 || _glfw.x11.randr.minor >= 3)
+                    _glfw.x11.randr.available = GLFW_TRUE;
+            }
+            else
+            {
+                _glfwInputError(GLFW_PLATFORM_ERROR,
+                                "X11: Failed to query RandR version");
+            }
+        }
+    }
+
+    if (_glfw.x11.randr.available)
+    {
+        XRRScreenResources* sr = XRRGetScreenResourcesCurrent(_glfw.x11.display,
+                                                              _glfw.x11.root);
+
+        if (!sr->ncrtc || !XRRGetCrtcGammaSize(_glfw.x11.display, sr->crtcs[0]))
+        {
+            // This is likely an older Nvidia driver with broken gamma support
+            // Flag it as useless and fall back to xf86vm gamma, if available
+            _glfw.x11.randr.gammaBroken = GLFW_TRUE;
+        }
+
+        if (!sr->ncrtc)
+        {
+            // A system without CRTCs is likely a system with broken RandR
+            // Disable the RandR monitor path and fall back to core functions
+            _glfw.x11.randr.monitorBroken = GLFW_TRUE;
+        }
+
+        XRRFreeScreenResources(sr);
+    }
+
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        XRRSelectInput(_glfw.x11.display, _glfw.x11.root,
+                       RROutputChangeNotifyMask);
+    }
+
+#if defined(__CYGWIN__)
+    _glfw.x11.xcursor.handle = _glfwPlatformLoadModule("libXcursor-1.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+    _glfw.x11.xcursor.handle = _glfwPlatformLoadModule("libXcursor.so");
+#else
+    _glfw.x11.xcursor.handle = _glfwPlatformLoadModule("libXcursor.so.1");
+#endif
+    if (_glfw.x11.xcursor.handle)
+    {
+        _glfw.x11.xcursor.ImageCreate = (PFN_XcursorImageCreate)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xcursor.handle, "XcursorImageCreate");
+        _glfw.x11.xcursor.ImageDestroy = (PFN_XcursorImageDestroy)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xcursor.handle, "XcursorImageDestroy");
+        _glfw.x11.xcursor.ImageLoadCursor = (PFN_XcursorImageLoadCursor)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xcursor.handle, "XcursorImageLoadCursor");
+        _glfw.x11.xcursor.GetTheme = (PFN_XcursorGetTheme)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xcursor.handle, "XcursorGetTheme");
+        _glfw.x11.xcursor.GetDefaultSize = (PFN_XcursorGetDefaultSize)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xcursor.handle, "XcursorGetDefaultSize");
+        _glfw.x11.xcursor.LibraryLoadImage = (PFN_XcursorLibraryLoadImage)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xcursor.handle, "XcursorLibraryLoadImage");
+    }
+
+#if defined(__CYGWIN__)
+    _glfw.x11.xinerama.handle = _glfwPlatformLoadModule("libXinerama-1.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+    _glfw.x11.xinerama.handle = _glfwPlatformLoadModule("libXinerama.so");
+#else
+    _glfw.x11.xinerama.handle = _glfwPlatformLoadModule("libXinerama.so.1");
+#endif
+    if (_glfw.x11.xinerama.handle)
+    {
+        _glfw.x11.xinerama.IsActive = (PFN_XineramaIsActive)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xinerama.handle, "XineramaIsActive");
+        _glfw.x11.xinerama.QueryExtension = (PFN_XineramaQueryExtension)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xinerama.handle, "XineramaQueryExtension");
+        _glfw.x11.xinerama.QueryScreens = (PFN_XineramaQueryScreens)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xinerama.handle, "XineramaQueryScreens");
+
+        if (XineramaQueryExtension(_glfw.x11.display,
+                                   &_glfw.x11.xinerama.major,
+                                   &_glfw.x11.xinerama.minor))
+        {
+            if (XineramaIsActive(_glfw.x11.display))
+                _glfw.x11.xinerama.available = GLFW_TRUE;
+        }
+    }
+
+    _glfw.x11.xkb.major = 1;
+    _glfw.x11.xkb.minor = 0;
+    _glfw.x11.xkb.available =
+        XkbQueryExtension(_glfw.x11.display,
+                          &_glfw.x11.xkb.majorOpcode,
+                          &_glfw.x11.xkb.eventBase,
+                          &_glfw.x11.xkb.errorBase,
+                          &_glfw.x11.xkb.major,
+                          &_glfw.x11.xkb.minor);
+
+    if (_glfw.x11.xkb.available)
+    {
+        Bool supported;
+
+        if (XkbSetDetectableAutoRepeat(_glfw.x11.display, True, &supported))
+        {
+            if (supported)
+                _glfw.x11.xkb.detectable = GLFW_TRUE;
+        }
+
+        XkbStateRec state;
+        if (XkbGetState(_glfw.x11.display, XkbUseCoreKbd, &state) == Success)
+            _glfw.x11.xkb.group = (unsigned int)state.group;
+
+        XkbSelectEventDetails(_glfw.x11.display, XkbUseCoreKbd, XkbStateNotify,
+                              XkbGroupStateMask, XkbGroupStateMask);
+    }
+
+    if (_glfw.hints.init.x11.xcbVulkanSurface)
+    {
+#if defined(__CYGWIN__)
+        _glfw.x11.x11xcb.handle = _glfwPlatformLoadModule("libX11-xcb-1.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+        _glfw.x11.x11xcb.handle = _glfwPlatformLoadModule("libX11-xcb.so");
+#else
+        _glfw.x11.x11xcb.handle = _glfwPlatformLoadModule("libX11-xcb.so.1");
+#endif
+    }
+
+    if (_glfw.x11.x11xcb.handle)
+    {
+        _glfw.x11.x11xcb.GetXCBConnection = (PFN_XGetXCBConnection)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.x11xcb.handle, "XGetXCBConnection");
+    }
+
+#if defined(__CYGWIN__)
+    _glfw.x11.xrender.handle = _glfwPlatformLoadModule("libXrender-1.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+    _glfw.x11.xrender.handle = _glfwPlatformLoadModule("libXrender.so");
+#else
+    _glfw.x11.xrender.handle = _glfwPlatformLoadModule("libXrender.so.1");
+#endif
+    if (_glfw.x11.xrender.handle)
+    {
+        _glfw.x11.xrender.QueryExtension = (PFN_XRenderQueryExtension)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xrender.handle, "XRenderQueryExtension");
+        _glfw.x11.xrender.QueryVersion = (PFN_XRenderQueryVersion)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xrender.handle, "XRenderQueryVersion");
+        _glfw.x11.xrender.FindVisualFormat = (PFN_XRenderFindVisualFormat)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xrender.handle, "XRenderFindVisualFormat");
+
+        if (XRenderQueryExtension(_glfw.x11.display,
+                                  &_glfw.x11.xrender.errorBase,
+                                  &_glfw.x11.xrender.eventBase))
+        {
+            if (XRenderQueryVersion(_glfw.x11.display,
+                                    &_glfw.x11.xrender.major,
+                                    &_glfw.x11.xrender.minor))
+            {
+                _glfw.x11.xrender.available = GLFW_TRUE;
+            }
+        }
+    }
+
+#if defined(__CYGWIN__)
+    _glfw.x11.xshape.handle = _glfwPlatformLoadModule("libXext-6.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+    _glfw.x11.xshape.handle = _glfwPlatformLoadModule("libXext.so");
+#else
+    _glfw.x11.xshape.handle = _glfwPlatformLoadModule("libXext.so.6");
+#endif
+    if (_glfw.x11.xshape.handle)
+    {
+        _glfw.x11.xshape.QueryExtension = (PFN_XShapeQueryExtension)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xshape.handle, "XShapeQueryExtension");
+        _glfw.x11.xshape.ShapeCombineRegion = (PFN_XShapeCombineRegion)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xshape.handle, "XShapeCombineRegion");
+        _glfw.x11.xshape.QueryVersion = (PFN_XShapeQueryVersion)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xshape.handle, "XShapeQueryVersion");
+        _glfw.x11.xshape.ShapeCombineMask = (PFN_XShapeCombineMask)
+            _glfwPlatformGetModuleSymbol(_glfw.x11.xshape.handle, "XShapeCombineMask");
+
+        if (XShapeQueryExtension(_glfw.x11.display,
+            &_glfw.x11.xshape.errorBase,
+            &_glfw.x11.xshape.eventBase))
+        {
+            if (XShapeQueryVersion(_glfw.x11.display,
+                &_glfw.x11.xshape.major,
+                &_glfw.x11.xshape.minor))
+            {
+                _glfw.x11.xshape.available = GLFW_TRUE;
+            }
+        }
+    }
+
+    // Update the key code LUT
+    // FIXME: We should listen to XkbMapNotify events to track changes to
+    // the keyboard mapping.
+    createKeyTables();
+
+    // String format atoms
+    _glfw.x11.NULL_ = XInternAtom(_glfw.x11.display, "NULL", False);
+    _glfw.x11.UTF8_STRING = XInternAtom(_glfw.x11.display, "UTF8_STRING", False);
+    _glfw.x11.ATOM_PAIR = XInternAtom(_glfw.x11.display, "ATOM_PAIR", False);
+
+    // Custom selection property atom
+    _glfw.x11.GLFW_SELECTION =
+        XInternAtom(_glfw.x11.display, "GLFW_SELECTION", False);
+
+    // ICCCM standard clipboard atoms
+    _glfw.x11.TARGETS = XInternAtom(_glfw.x11.display, "TARGETS", False);
+    _glfw.x11.MULTIPLE = XInternAtom(_glfw.x11.display, "MULTIPLE", False);
+    _glfw.x11.PRIMARY = XInternAtom(_glfw.x11.display, "PRIMARY", False);
+    _glfw.x11.INCR = XInternAtom(_glfw.x11.display, "INCR", False);
+    _glfw.x11.CLIPBOARD = XInternAtom(_glfw.x11.display, "CLIPBOARD", False);
+
+    // Clipboard manager atoms
+    _glfw.x11.CLIPBOARD_MANAGER =
+        XInternAtom(_glfw.x11.display, "CLIPBOARD_MANAGER", False);
+    _glfw.x11.SAVE_TARGETS =
+        XInternAtom(_glfw.x11.display, "SAVE_TARGETS", False);
+
+    // Xdnd (drag and drop) atoms
+    _glfw.x11.XdndAware = XInternAtom(_glfw.x11.display, "XdndAware", False);
+    _glfw.x11.XdndEnter = XInternAtom(_glfw.x11.display, "XdndEnter", False);
+    _glfw.x11.XdndPosition = XInternAtom(_glfw.x11.display, "XdndPosition", False);
+    _glfw.x11.XdndStatus = XInternAtom(_glfw.x11.display, "XdndStatus", False);
+    _glfw.x11.XdndActionCopy = XInternAtom(_glfw.x11.display, "XdndActionCopy", False);
+    _glfw.x11.XdndDrop = XInternAtom(_glfw.x11.display, "XdndDrop", False);
+    _glfw.x11.XdndFinished = XInternAtom(_glfw.x11.display, "XdndFinished", False);
+    _glfw.x11.XdndSelection = XInternAtom(_glfw.x11.display, "XdndSelection", False);
+    _glfw.x11.XdndTypeList = XInternAtom(_glfw.x11.display, "XdndTypeList", False);
+    _glfw.x11.text_uri_list = XInternAtom(_glfw.x11.display, "text/uri-list", False);
+
+    // ICCCM, EWMH and Motif window property atoms
+    // These can be set safely even without WM support
+    // The EWMH atoms that require WM support are handled in detectEWMH
+    _glfw.x11.WM_PROTOCOLS =
+        XInternAtom(_glfw.x11.display, "WM_PROTOCOLS", False);
+    _glfw.x11.WM_STATE =
+        XInternAtom(_glfw.x11.display, "WM_STATE", False);
+    _glfw.x11.WM_DELETE_WINDOW =
+        XInternAtom(_glfw.x11.display, "WM_DELETE_WINDOW", False);
+    _glfw.x11.NET_SUPPORTED =
+        XInternAtom(_glfw.x11.display, "_NET_SUPPORTED", False);
+    _glfw.x11.NET_SUPPORTING_WM_CHECK =
+        XInternAtom(_glfw.x11.display, "_NET_SUPPORTING_WM_CHECK", False);
+    _glfw.x11.NET_WM_ICON =
+        XInternAtom(_glfw.x11.display, "_NET_WM_ICON", False);
+    _glfw.x11.NET_WM_PING =
+        XInternAtom(_glfw.x11.display, "_NET_WM_PING", False);
+    _glfw.x11.NET_WM_PID =
+        XInternAtom(_glfw.x11.display, "_NET_WM_PID", False);
+    _glfw.x11.NET_WM_NAME =
+        XInternAtom(_glfw.x11.display, "_NET_WM_NAME", False);
+    _glfw.x11.NET_WM_ICON_NAME =
+        XInternAtom(_glfw.x11.display, "_NET_WM_ICON_NAME", False);
+    _glfw.x11.NET_WM_BYPASS_COMPOSITOR =
+        XInternAtom(_glfw.x11.display, "_NET_WM_BYPASS_COMPOSITOR", False);
+    _glfw.x11.NET_WM_WINDOW_OPACITY =
+        XInternAtom(_glfw.x11.display, "_NET_WM_WINDOW_OPACITY", False);
+    _glfw.x11.MOTIF_WM_HINTS =
+        XInternAtom(_glfw.x11.display, "_MOTIF_WM_HINTS", False);
+
+    // The compositing manager selection name contains the screen number
+    {
+        char name[32];
+        snprintf(name, sizeof(name), "_NET_WM_CM_S%u", _glfw.x11.screen);
+        _glfw.x11.NET_WM_CM_Sx = XInternAtom(_glfw.x11.display, name, False);
+    }
+
+    // Detect whether an EWMH-conformant window manager is running
+    detectEWMH();
+
+    return GLFW_TRUE;
+}
+
+// Retrieve system content scale via folklore heuristics
+//
+static void getSystemContentScale(float* xscale, float* yscale)
+{
+    // Start by assuming the default X11 DPI
+    // NOTE: Some desktop environments (KDE) may remove the Xft.dpi field when it
+    //       would be set to 96, so assume that is the case if we cannot find it
+    float xdpi = 96.f, ydpi = 96.f;
+
+    // NOTE: Basing the scale on Xft.dpi where available should provide the most
+    //       consistent user experience (matches Qt, Gtk, etc), although not
+    //       always the most accurate one
+    char* rms = XResourceManagerString(_glfw.x11.display);
+    if (rms)
+    {
+        XrmDatabase db = XrmGetStringDatabase(rms);
+        if (db)
+        {
+            XrmValue value;
+            char* type = NULL;
+
+            if (XrmGetResource(db, "Xft.dpi", "Xft.Dpi", &type, &value))
+            {
+                if (type && strcmp(type, "String") == 0)
+                    xdpi = ydpi = atof(value.addr);
+            }
+
+            XrmDestroyDatabase(db);
+        }
+    }
+
+    *xscale = xdpi / 96.f;
+    *yscale = ydpi / 96.f;
+}
+
+// Create a blank cursor for hidden and disabled cursor modes
+//
+static Cursor createHiddenCursor(void)
+{
+    unsigned char pixels[16 * 16 * 4] = { 0 };
+    GLFWimage image = { 16, 16, pixels };
+    return _glfwCreateNativeCursorX11(&image, 0, 0);
+}
+
+// Create a helper window for IPC
+//
+static Window createHelperWindow(void)
+{
+    XSetWindowAttributes wa;
+    wa.event_mask = PropertyChangeMask;
+
+    return XCreateWindow(_glfw.x11.display, _glfw.x11.root,
+                         0, 0, 1, 1, 0, 0,
+                         InputOnly,
+                         DefaultVisual(_glfw.x11.display, _glfw.x11.screen),
+                         CWEventMask, &wa);
+}
+
+// Create the pipe for empty events without assumuing the OS has pipe2(2)
+//
+static GLFWbool createEmptyEventPipe(void)
+{
+    if (pipe(_glfw.x11.emptyEventPipe) != 0)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "X11: Failed to create empty event pipe: %s",
+                        strerror(errno));
+        return GLFW_FALSE;
+    }
+
+    for (int i = 0; i < 2; i++)
+    {
+        const int sf = fcntl(_glfw.x11.emptyEventPipe[i], F_GETFL, 0);
+        const int df = fcntl(_glfw.x11.emptyEventPipe[i], F_GETFD, 0);
+
+        if (sf == -1 || df == -1 ||
+            fcntl(_glfw.x11.emptyEventPipe[i], F_SETFL, sf | O_NONBLOCK) == -1 ||
+            fcntl(_glfw.x11.emptyEventPipe[i], F_SETFD, df | FD_CLOEXEC) == -1)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "X11: Failed to set flags for empty event pipe: %s",
+                            strerror(errno));
+            return GLFW_FALSE;
+        }
+    }
+
+    return GLFW_TRUE;
+}
+
+// X error handler
+//
+static int errorHandler(Display *display, XErrorEvent* event)
+{
+    if (_glfw.x11.display != display)
+        return 0;
+
+    _glfw.x11.errorCode = event->error_code;
+    return 0;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Sets the X error handler callback
+//
+void _glfwGrabErrorHandlerX11(void)
+{
+    assert(_glfw.x11.errorHandler == NULL);
+    _glfw.x11.errorCode = Success;
+    _glfw.x11.errorHandler = XSetErrorHandler(errorHandler);
+}
+
+// Clears the X error handler callback
+//
+void _glfwReleaseErrorHandlerX11(void)
+{
+    // Synchronize to make sure all commands are processed
+    XSync(_glfw.x11.display, False);
+    XSetErrorHandler(_glfw.x11.errorHandler);
+    _glfw.x11.errorHandler = NULL;
+}
+
+// Reports the specified error, appending information about the last X error
+//
+void _glfwInputErrorX11(int error, const char* message)
+{
+    char buffer[_GLFW_MESSAGE_SIZE];
+    XGetErrorText(_glfw.x11.display, _glfw.x11.errorCode,
+                  buffer, sizeof(buffer));
+
+    _glfwInputError(error, "%s: %s", message, buffer);
+}
+
+// Creates a native cursor object from the specified image and hotspot
+//
+Cursor _glfwCreateNativeCursorX11(const GLFWimage* image, int xhot, int yhot)
+{
+    Cursor cursor;
+
+    if (!_glfw.x11.xcursor.handle)
+        return None;
+
+    XcursorImage* native = XcursorImageCreate(image->width, image->height);
+    if (native == NULL)
+        return None;
+
+    native->xhot = xhot;
+    native->yhot = yhot;
+
+    unsigned char* source = (unsigned char*) image->pixels;
+    XcursorPixel* target = native->pixels;
+
+    for (int i = 0;  i < image->width * image->height;  i++, target++, source += 4)
+    {
+        unsigned int alpha = source[3];
+
+        *target = (alpha << 24) |
+                  ((unsigned char) ((source[0] * alpha) / 255) << 16) |
+                  ((unsigned char) ((source[1] * alpha) / 255) <<  8) |
+                  ((unsigned char) ((source[2] * alpha) / 255) <<  0);
+    }
+
+    cursor = XcursorImageLoadCursor(_glfw.x11.display, native);
+    XcursorImageDestroy(native);
+
+    return cursor;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwConnectX11(int platformID, _GLFWplatform* platform)
+{
+    const _GLFWplatform x11 =
+    {
+        .platformID = GLFW_PLATFORM_X11,
+        .init = _glfwInitX11,
+        .terminate = _glfwTerminateX11,
+        .getCursorPos = _glfwGetCursorPosX11,
+        .setCursorPos = _glfwSetCursorPosX11,
+        .setCursorMode = _glfwSetCursorModeX11,
+        .setRawMouseMotion = _glfwSetRawMouseMotionX11,
+        .rawMouseMotionSupported = _glfwRawMouseMotionSupportedX11,
+        .createCursor = _glfwCreateCursorX11,
+        .createStandardCursor = _glfwCreateStandardCursorX11,
+        .destroyCursor = _glfwDestroyCursorX11,
+        .setCursor = _glfwSetCursorX11,
+        .getScancodeName = _glfwGetScancodeNameX11,
+        .getKeyScancode = _glfwGetKeyScancodeX11,
+        .setClipboardString = _glfwSetClipboardStringX11,
+        .getClipboardString = _glfwGetClipboardStringX11,
+#if defined(GLFW_BUILD_LINUX_JOYSTICK)
+        .initJoysticks = _glfwInitJoysticksLinux,
+        .terminateJoysticks = _glfwTerminateJoysticksLinux,
+        .pollJoystick = _glfwPollJoystickLinux,
+        .getMappingName = _glfwGetMappingNameLinux,
+        .updateGamepadGUID = _glfwUpdateGamepadGUIDLinux,
+#else
+        .initJoysticks = _glfwInitJoysticksNull,
+        .terminateJoysticks = _glfwTerminateJoysticksNull,
+        .pollJoystick = _glfwPollJoystickNull,
+        .getMappingName = _glfwGetMappingNameNull,
+        .updateGamepadGUID = _glfwUpdateGamepadGUIDNull,
+#endif
+        .freeMonitor = _glfwFreeMonitorX11,
+        .getMonitorPos = _glfwGetMonitorPosX11,
+        .getMonitorContentScale = _glfwGetMonitorContentScaleX11,
+        .getMonitorWorkarea = _glfwGetMonitorWorkareaX11,
+        .getVideoModes = _glfwGetVideoModesX11,
+        .getVideoMode = _glfwGetVideoModeX11,
+        .getGammaRamp = _glfwGetGammaRampX11,
+        .setGammaRamp = _glfwSetGammaRampX11,
+        .createWindow = _glfwCreateWindowX11,
+        .destroyWindow = _glfwDestroyWindowX11,
+        .setWindowTitle = _glfwSetWindowTitleX11,
+        .setWindowIcon = _glfwSetWindowIconX11,
+        .getWindowPos = _glfwGetWindowPosX11,
+        .setWindowPos = _glfwSetWindowPosX11,
+        .getWindowSize = _glfwGetWindowSizeX11,
+        .setWindowSize = _glfwSetWindowSizeX11,
+        .setWindowSizeLimits = _glfwSetWindowSizeLimitsX11,
+        .setWindowAspectRatio = _glfwSetWindowAspectRatioX11,
+        .getFramebufferSize = _glfwGetFramebufferSizeX11,
+        .getWindowFrameSize = _glfwGetWindowFrameSizeX11,
+        .getWindowContentScale = _glfwGetWindowContentScaleX11,
+        .iconifyWindow = _glfwIconifyWindowX11,
+        .restoreWindow = _glfwRestoreWindowX11,
+        .maximizeWindow = _glfwMaximizeWindowX11,
+        .showWindow = _glfwShowWindowX11,
+        .hideWindow = _glfwHideWindowX11,
+        .requestWindowAttention = _glfwRequestWindowAttentionX11,
+        .focusWindow = _glfwFocusWindowX11,
+        .setWindowMonitor = _glfwSetWindowMonitorX11,
+        .windowFocused = _glfwWindowFocusedX11,
+        .windowIconified = _glfwWindowIconifiedX11,
+        .windowVisible = _glfwWindowVisibleX11,
+        .windowMaximized = _glfwWindowMaximizedX11,
+        .windowHovered = _glfwWindowHoveredX11,
+        .framebufferTransparent = _glfwFramebufferTransparentX11,
+        .getWindowOpacity = _glfwGetWindowOpacityX11,
+        .setWindowResizable = _glfwSetWindowResizableX11,
+        .setWindowDecorated = _glfwSetWindowDecoratedX11,
+        .setWindowFloating = _glfwSetWindowFloatingX11,
+        .setWindowOpacity = _glfwSetWindowOpacityX11,
+        .setWindowMousePassthrough = _glfwSetWindowMousePassthroughX11,
+        .pollEvents = _glfwPollEventsX11,
+        .waitEvents = _glfwWaitEventsX11,
+        .waitEventsTimeout = _glfwWaitEventsTimeoutX11,
+        .postEmptyEvent = _glfwPostEmptyEventX11,
+        .getEGLPlatform = _glfwGetEGLPlatformX11,
+        .getEGLNativeDisplay = _glfwGetEGLNativeDisplayX11,
+        .getEGLNativeWindow = _glfwGetEGLNativeWindowX11,
+        .getRequiredInstanceExtensions = _glfwGetRequiredInstanceExtensionsX11,
+        .getPhysicalDevicePresentationSupport = _glfwGetPhysicalDevicePresentationSupportX11,
+        .createWindowSurface = _glfwCreateWindowSurfaceX11
+    };
+
+    // HACK: If the application has left the locale as "C" then both wide
+    //       character text input and explicit UTF-8 input via XIM will break
+    //       This sets the CTYPE part of the current locale from the environment
+    //       in the hope that it is set to something more sane than "C"
+    if (strcmp(setlocale(LC_CTYPE, NULL), "C") == 0)
+        setlocale(LC_CTYPE, "");
+
+#if defined(__CYGWIN__)
+    void* module = _glfwPlatformLoadModule("libX11-6.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+    void* module = _glfwPlatformLoadModule("libX11.so");
+#else
+    void* module = _glfwPlatformLoadModule("libX11.so.6");
+#endif
+    if (!module)
+    {
+        if (platformID == GLFW_PLATFORM_X11)
+            _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to load Xlib");
+
+        return GLFW_FALSE;
+    }
+
+    PFN_XInitThreads XInitThreads = (PFN_XInitThreads)
+        _glfwPlatformGetModuleSymbol(module, "XInitThreads");
+    PFN_XrmInitialize XrmInitialize = (PFN_XrmInitialize)
+        _glfwPlatformGetModuleSymbol(module, "XrmInitialize");
+    PFN_XOpenDisplay XOpenDisplay = (PFN_XOpenDisplay)
+        _glfwPlatformGetModuleSymbol(module, "XOpenDisplay");
+    if (!XInitThreads || !XrmInitialize || !XOpenDisplay)
+    {
+        if (platformID == GLFW_PLATFORM_X11)
+            _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to load Xlib entry point");
+
+        _glfwPlatformFreeModule(module);
+        return GLFW_FALSE;
+    }
+
+    XInitThreads();
+    XrmInitialize();
+
+    Display* display = XOpenDisplay(NULL);
+    if (!display)
+    {
+        if (platformID == GLFW_PLATFORM_X11)
+        {
+            const char* name = getenv("DISPLAY");
+            if (name)
+            {
+                _glfwInputError(GLFW_PLATFORM_UNAVAILABLE,
+                                "X11: Failed to open display %s", name);
+            }
+            else
+            {
+                _glfwInputError(GLFW_PLATFORM_UNAVAILABLE,
+                                "X11: The DISPLAY environment variable is missing");
+            }
+        }
+
+        _glfwPlatformFreeModule(module);
+        return GLFW_FALSE;
+    }
+
+    _glfw.x11.display = display;
+    _glfw.x11.xlib.handle = module;
+
+    *platform = x11;
+    return GLFW_TRUE;
+}
+
+int _glfwInitX11(void)
+{
+    _glfw.x11.xlib.AllocClassHint = (PFN_XAllocClassHint)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XAllocClassHint");
+    _glfw.x11.xlib.AllocSizeHints = (PFN_XAllocSizeHints)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XAllocSizeHints");
+    _glfw.x11.xlib.AllocWMHints = (PFN_XAllocWMHints)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XAllocWMHints");
+    _glfw.x11.xlib.ChangeProperty = (PFN_XChangeProperty)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XChangeProperty");
+    _glfw.x11.xlib.ChangeWindowAttributes = (PFN_XChangeWindowAttributes)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XChangeWindowAttributes");
+    _glfw.x11.xlib.CheckIfEvent = (PFN_XCheckIfEvent)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XCheckIfEvent");
+    _glfw.x11.xlib.CheckTypedWindowEvent = (PFN_XCheckTypedWindowEvent)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XCheckTypedWindowEvent");
+    _glfw.x11.xlib.CloseDisplay = (PFN_XCloseDisplay)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XCloseDisplay");
+    _glfw.x11.xlib.CloseIM = (PFN_XCloseIM)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XCloseIM");
+    _glfw.x11.xlib.ConvertSelection = (PFN_XConvertSelection)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XConvertSelection");
+    _glfw.x11.xlib.CreateColormap = (PFN_XCreateColormap)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XCreateColormap");
+    _glfw.x11.xlib.CreateFontCursor = (PFN_XCreateFontCursor)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XCreateFontCursor");
+    _glfw.x11.xlib.CreateIC = (PFN_XCreateIC)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XCreateIC");
+    _glfw.x11.xlib.CreateRegion = (PFN_XCreateRegion)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XCreateRegion");
+    _glfw.x11.xlib.CreateWindow = (PFN_XCreateWindow)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XCreateWindow");
+    _glfw.x11.xlib.DefineCursor = (PFN_XDefineCursor)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XDefineCursor");
+    _glfw.x11.xlib.DeleteContext = (PFN_XDeleteContext)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XDeleteContext");
+    _glfw.x11.xlib.DeleteProperty = (PFN_XDeleteProperty)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XDeleteProperty");
+    _glfw.x11.xlib.DestroyIC = (PFN_XDestroyIC)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XDestroyIC");
+    _glfw.x11.xlib.DestroyRegion = (PFN_XDestroyRegion)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XDestroyRegion");
+    _glfw.x11.xlib.DestroyWindow = (PFN_XDestroyWindow)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XDestroyWindow");
+    _glfw.x11.xlib.DisplayKeycodes = (PFN_XDisplayKeycodes)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XDisplayKeycodes");
+    _glfw.x11.xlib.EventsQueued = (PFN_XEventsQueued)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XEventsQueued");
+    _glfw.x11.xlib.FilterEvent = (PFN_XFilterEvent)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XFilterEvent");
+    _glfw.x11.xlib.FindContext = (PFN_XFindContext)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XFindContext");
+    _glfw.x11.xlib.Flush = (PFN_XFlush)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XFlush");
+    _glfw.x11.xlib.Free = (PFN_XFree)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XFree");
+    _glfw.x11.xlib.FreeColormap = (PFN_XFreeColormap)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XFreeColormap");
+    _glfw.x11.xlib.FreeCursor = (PFN_XFreeCursor)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XFreeCursor");
+    _glfw.x11.xlib.FreeEventData = (PFN_XFreeEventData)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XFreeEventData");
+    _glfw.x11.xlib.GetErrorText = (PFN_XGetErrorText)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGetErrorText");
+    _glfw.x11.xlib.GetEventData = (PFN_XGetEventData)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGetEventData");
+    _glfw.x11.xlib.GetICValues = (PFN_XGetICValues)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGetICValues");
+    _glfw.x11.xlib.GetIMValues = (PFN_XGetIMValues)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGetIMValues");
+    _glfw.x11.xlib.GetInputFocus = (PFN_XGetInputFocus)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGetInputFocus");
+    _glfw.x11.xlib.GetKeyboardMapping = (PFN_XGetKeyboardMapping)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGetKeyboardMapping");
+    _glfw.x11.xlib.GetScreenSaver = (PFN_XGetScreenSaver)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGetScreenSaver");
+    _glfw.x11.xlib.GetSelectionOwner = (PFN_XGetSelectionOwner)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGetSelectionOwner");
+    _glfw.x11.xlib.GetVisualInfo = (PFN_XGetVisualInfo)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGetVisualInfo");
+    _glfw.x11.xlib.GetWMNormalHints = (PFN_XGetWMNormalHints)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGetWMNormalHints");
+    _glfw.x11.xlib.GetWindowAttributes = (PFN_XGetWindowAttributes)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGetWindowAttributes");
+    _glfw.x11.xlib.GetWindowProperty = (PFN_XGetWindowProperty)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGetWindowProperty");
+    _glfw.x11.xlib.GrabPointer = (PFN_XGrabPointer)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XGrabPointer");
+    _glfw.x11.xlib.IconifyWindow = (PFN_XIconifyWindow)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XIconifyWindow");
+    _glfw.x11.xlib.InternAtom = (PFN_XInternAtom)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XInternAtom");
+    _glfw.x11.xlib.LookupString = (PFN_XLookupString)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XLookupString");
+    _glfw.x11.xlib.MapRaised = (PFN_XMapRaised)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XMapRaised");
+    _glfw.x11.xlib.MapWindow = (PFN_XMapWindow)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XMapWindow");
+    _glfw.x11.xlib.MoveResizeWindow = (PFN_XMoveResizeWindow)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XMoveResizeWindow");
+    _glfw.x11.xlib.MoveWindow = (PFN_XMoveWindow)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XMoveWindow");
+    _glfw.x11.xlib.NextEvent = (PFN_XNextEvent)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XNextEvent");
+    _glfw.x11.xlib.OpenIM = (PFN_XOpenIM)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XOpenIM");
+    _glfw.x11.xlib.PeekEvent = (PFN_XPeekEvent)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XPeekEvent");
+    _glfw.x11.xlib.Pending = (PFN_XPending)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XPending");
+    _glfw.x11.xlib.QueryExtension = (PFN_XQueryExtension)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XQueryExtension");
+    _glfw.x11.xlib.QueryPointer = (PFN_XQueryPointer)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XQueryPointer");
+    _glfw.x11.xlib.RaiseWindow = (PFN_XRaiseWindow)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XRaiseWindow");
+    _glfw.x11.xlib.RegisterIMInstantiateCallback = (PFN_XRegisterIMInstantiateCallback)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XRegisterIMInstantiateCallback");
+    _glfw.x11.xlib.ResizeWindow = (PFN_XResizeWindow)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XResizeWindow");
+    _glfw.x11.xlib.ResourceManagerString = (PFN_XResourceManagerString)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XResourceManagerString");
+    _glfw.x11.xlib.SaveContext = (PFN_XSaveContext)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSaveContext");
+    _glfw.x11.xlib.SelectInput = (PFN_XSelectInput)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSelectInput");
+    _glfw.x11.xlib.SendEvent = (PFN_XSendEvent)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSendEvent");
+    _glfw.x11.xlib.SetClassHint = (PFN_XSetClassHint)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSetClassHint");
+    _glfw.x11.xlib.SetErrorHandler = (PFN_XSetErrorHandler)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSetErrorHandler");
+    _glfw.x11.xlib.SetICFocus = (PFN_XSetICFocus)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSetICFocus");
+    _glfw.x11.xlib.SetIMValues = (PFN_XSetIMValues)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSetIMValues");
+    _glfw.x11.xlib.SetInputFocus = (PFN_XSetInputFocus)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSetInputFocus");
+    _glfw.x11.xlib.SetLocaleModifiers = (PFN_XSetLocaleModifiers)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSetLocaleModifiers");
+    _glfw.x11.xlib.SetScreenSaver = (PFN_XSetScreenSaver)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSetScreenSaver");
+    _glfw.x11.xlib.SetSelectionOwner = (PFN_XSetSelectionOwner)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSetSelectionOwner");
+    _glfw.x11.xlib.SetWMHints = (PFN_XSetWMHints)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSetWMHints");
+    _glfw.x11.xlib.SetWMNormalHints = (PFN_XSetWMNormalHints)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSetWMNormalHints");
+    _glfw.x11.xlib.SetWMProtocols = (PFN_XSetWMProtocols)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSetWMProtocols");
+    _glfw.x11.xlib.SupportsLocale = (PFN_XSupportsLocale)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSupportsLocale");
+    _glfw.x11.xlib.Sync = (PFN_XSync)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XSync");
+    _glfw.x11.xlib.TranslateCoordinates = (PFN_XTranslateCoordinates)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XTranslateCoordinates");
+    _glfw.x11.xlib.UndefineCursor = (PFN_XUndefineCursor)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XUndefineCursor");
+    _glfw.x11.xlib.UngrabPointer = (PFN_XUngrabPointer)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XUngrabPointer");
+    _glfw.x11.xlib.UnmapWindow = (PFN_XUnmapWindow)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XUnmapWindow");
+    _glfw.x11.xlib.UnsetICFocus = (PFN_XUnsetICFocus)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XUnsetICFocus");
+    _glfw.x11.xlib.VisualIDFromVisual = (PFN_XVisualIDFromVisual)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XVisualIDFromVisual");
+    _glfw.x11.xlib.WarpPointer = (PFN_XWarpPointer)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XWarpPointer");
+    _glfw.x11.xkb.FreeKeyboard = (PFN_XkbFreeKeyboard)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XkbFreeKeyboard");
+    _glfw.x11.xkb.FreeNames = (PFN_XkbFreeNames)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XkbFreeNames");
+    _glfw.x11.xkb.GetMap = (PFN_XkbGetMap)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XkbGetMap");
+    _glfw.x11.xkb.GetNames = (PFN_XkbGetNames)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XkbGetNames");
+    _glfw.x11.xkb.GetState = (PFN_XkbGetState)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XkbGetState");
+    _glfw.x11.xkb.KeycodeToKeysym = (PFN_XkbKeycodeToKeysym)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XkbKeycodeToKeysym");
+    _glfw.x11.xkb.QueryExtension = (PFN_XkbQueryExtension)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XkbQueryExtension");
+    _glfw.x11.xkb.SelectEventDetails = (PFN_XkbSelectEventDetails)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XkbSelectEventDetails");
+    _glfw.x11.xkb.SetDetectableAutoRepeat = (PFN_XkbSetDetectableAutoRepeat)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XkbSetDetectableAutoRepeat");
+    _glfw.x11.xrm.DestroyDatabase = (PFN_XrmDestroyDatabase)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XrmDestroyDatabase");
+    _glfw.x11.xrm.GetResource = (PFN_XrmGetResource)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XrmGetResource");
+    _glfw.x11.xrm.GetStringDatabase = (PFN_XrmGetStringDatabase)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XrmGetStringDatabase");
+    _glfw.x11.xrm.UniqueQuark = (PFN_XrmUniqueQuark)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XrmUniqueQuark");
+    _glfw.x11.xlib.UnregisterIMInstantiateCallback = (PFN_XUnregisterIMInstantiateCallback)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "XUnregisterIMInstantiateCallback");
+    _glfw.x11.xlib.utf8LookupString = (PFN_Xutf8LookupString)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "Xutf8LookupString");
+    _glfw.x11.xlib.utf8SetWMProperties = (PFN_Xutf8SetWMProperties)
+        _glfwPlatformGetModuleSymbol(_glfw.x11.xlib.handle, "Xutf8SetWMProperties");
+
+    if (_glfw.x11.xlib.utf8LookupString && _glfw.x11.xlib.utf8SetWMProperties)
+        _glfw.x11.xlib.utf8 = GLFW_TRUE;
+
+    _glfw.x11.screen = DefaultScreen(_glfw.x11.display);
+    _glfw.x11.root = RootWindow(_glfw.x11.display, _glfw.x11.screen);
+    _glfw.x11.context = XUniqueContext();
+
+    getSystemContentScale(&_glfw.x11.contentScaleX, &_glfw.x11.contentScaleY);
+
+    if (!createEmptyEventPipe())
+        return GLFW_FALSE;
+
+    if (!initExtensions())
+        return GLFW_FALSE;
+
+    _glfw.x11.helperWindowHandle = createHelperWindow();
+    _glfw.x11.hiddenCursorHandle = createHiddenCursor();
+
+    if (XSupportsLocale() && _glfw.x11.xlib.utf8)
+    {
+        XSetLocaleModifiers("");
+
+        // If an IM is already present our callback will be called right away
+        XRegisterIMInstantiateCallback(_glfw.x11.display,
+                                       NULL, NULL, NULL,
+                                       inputMethodInstantiateCallback,
+                                       NULL);
+    }
+
+    _glfwPollMonitorsX11();
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateX11(void)
+{
+    if (_glfw.x11.helperWindowHandle)
+    {
+        if (XGetSelectionOwner(_glfw.x11.display, _glfw.x11.CLIPBOARD) ==
+            _glfw.x11.helperWindowHandle)
+        {
+            _glfwPushSelectionToManagerX11();
+        }
+
+        XDestroyWindow(_glfw.x11.display, _glfw.x11.helperWindowHandle);
+        _glfw.x11.helperWindowHandle = None;
+    }
+
+    if (_glfw.x11.hiddenCursorHandle)
+    {
+        XFreeCursor(_glfw.x11.display, _glfw.x11.hiddenCursorHandle);
+        _glfw.x11.hiddenCursorHandle = (Cursor) 0;
+    }
+
+    _glfw_free(_glfw.x11.primarySelectionString);
+    _glfw_free(_glfw.x11.clipboardString);
+
+    XUnregisterIMInstantiateCallback(_glfw.x11.display,
+                                     NULL, NULL, NULL,
+                                     inputMethodInstantiateCallback,
+                                     NULL);
+
+    if (_glfw.x11.im)
+    {
+        XCloseIM(_glfw.x11.im);
+        _glfw.x11.im = NULL;
+    }
+
+    if (_glfw.x11.display)
+    {
+        XCloseDisplay(_glfw.x11.display);
+        _glfw.x11.display = NULL;
+    }
+
+    if (_glfw.x11.x11xcb.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.x11.x11xcb.handle);
+        _glfw.x11.x11xcb.handle = NULL;
+    }
+
+    if (_glfw.x11.xcursor.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.x11.xcursor.handle);
+        _glfw.x11.xcursor.handle = NULL;
+    }
+
+    if (_glfw.x11.randr.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.x11.randr.handle);
+        _glfw.x11.randr.handle = NULL;
+    }
+
+    if (_glfw.x11.xinerama.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.x11.xinerama.handle);
+        _glfw.x11.xinerama.handle = NULL;
+    }
+
+    if (_glfw.x11.xrender.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.x11.xrender.handle);
+        _glfw.x11.xrender.handle = NULL;
+    }
+
+    if (_glfw.x11.vidmode.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.x11.vidmode.handle);
+        _glfw.x11.vidmode.handle = NULL;
+    }
+
+    if (_glfw.x11.xi.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.x11.xi.handle);
+        _glfw.x11.xi.handle = NULL;
+    }
+
+    _glfwTerminateOSMesa();
+    // NOTE: These need to be unloaded after XCloseDisplay, as they register
+    //       cleanup callbacks that get called by that function
+    _glfwTerminateEGL();
+    _glfwTerminateGLX();
+
+    if (_glfw.x11.xlib.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.x11.xlib.handle);
+        _glfw.x11.xlib.handle = NULL;
+    }
+
+    if (_glfw.x11.emptyEventPipe[0] || _glfw.x11.emptyEventPipe[1])
+    {
+        close(_glfw.x11.emptyEventPipe[0]);
+        close(_glfw.x11.emptyEventPipe[1]);
+    }
+}
+
+#endif // _GLFW_X11
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/x11_monitor.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/x11_monitor.c
new file mode 100644
index 000000000000..3af8275207e6
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/x11_monitor.c
@@ -0,0 +1,646 @@
+//========================================================================
+// GLFW 3.5 X11 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_X11)
+
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <assert.h>
+
+
+// Check whether the display mode should be included in enumeration
+//
+static GLFWbool modeIsGood(const XRRModeInfo* mi)
+{
+    return (mi->modeFlags & RR_Interlace) == 0;
+}
+
+// Calculates the refresh rate, in Hz, from the specified RandR mode info
+//
+static int calculateRefreshRate(const XRRModeInfo* mi)
+{
+    if (mi->hTotal && mi->vTotal)
+        return (int) round((double) mi->dotClock / ((double) mi->hTotal * (double) mi->vTotal));
+    else
+        return 0;
+}
+
+// Returns the mode info for a RandR mode XID
+//
+static const XRRModeInfo* getModeInfo(const XRRScreenResources* sr, RRMode id)
+{
+    for (int i = 0;  i < sr->nmode;  i++)
+    {
+        if (sr->modes[i].id == id)
+            return sr->modes + i;
+    }
+
+    return NULL;
+}
+
+// Convert RandR mode info to GLFW video mode
+//
+static GLFWvidmode vidmodeFromModeInfo(const XRRModeInfo* mi,
+                                       const XRRCrtcInfo* ci)
+{
+    GLFWvidmode mode;
+
+    if (ci->rotation == RR_Rotate_90 || ci->rotation == RR_Rotate_270)
+    {
+        mode.width  = mi->height;
+        mode.height = mi->width;
+    }
+    else
+    {
+        mode.width  = mi->width;
+        mode.height = mi->height;
+    }
+
+    mode.refreshRate = calculateRefreshRate(mi);
+
+    _glfwSplitBPP(DefaultDepth(_glfw.x11.display, _glfw.x11.screen),
+                  &mode.redBits, &mode.greenBits, &mode.blueBits);
+
+    return mode;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Poll for changes in the set of connected monitors
+//
+void _glfwPollMonitorsX11(void)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        int disconnectedCount, screenCount = 0;
+        _GLFWmonitor** disconnected = NULL;
+        XineramaScreenInfo* screens = NULL;
+        XRRScreenResources* sr = XRRGetScreenResourcesCurrent(_glfw.x11.display,
+                                                              _glfw.x11.root);
+        RROutput primary = XRRGetOutputPrimary(_glfw.x11.display,
+                                               _glfw.x11.root);
+
+        if (_glfw.x11.xinerama.available)
+            screens = XineramaQueryScreens(_glfw.x11.display, &screenCount);
+
+        disconnectedCount = _glfw.monitorCount;
+        if (disconnectedCount)
+        {
+            disconnected = _glfw_calloc(_glfw.monitorCount, sizeof(_GLFWmonitor*));
+            memcpy(disconnected,
+                   _glfw.monitors,
+                   _glfw.monitorCount * sizeof(_GLFWmonitor*));
+        }
+
+        for (int i = 0;  i < sr->noutput;  i++)
+        {
+            int j, type, widthMM, heightMM;
+
+            XRROutputInfo* oi = XRRGetOutputInfo(_glfw.x11.display, sr, sr->outputs[i]);
+            if (oi->connection != RR_Connected || oi->crtc == None)
+            {
+                XRRFreeOutputInfo(oi);
+                continue;
+            }
+
+            for (j = 0;  j < disconnectedCount;  j++)
+            {
+                if (disconnected[j] &&
+                    disconnected[j]->x11.output == sr->outputs[i])
+                {
+                    disconnected[j] = NULL;
+                    break;
+                }
+            }
+
+            if (j < disconnectedCount)
+            {
+                XRRFreeOutputInfo(oi);
+                continue;
+            }
+
+            XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, oi->crtc);
+            if (ci->rotation == RR_Rotate_90 || ci->rotation == RR_Rotate_270)
+            {
+                widthMM  = oi->mm_height;
+                heightMM = oi->mm_width;
+            }
+            else
+            {
+                widthMM  = oi->mm_width;
+                heightMM = oi->mm_height;
+            }
+
+            if (widthMM <= 0 || heightMM <= 0)
+            {
+                // HACK: If RandR does not provide a physical size, assume the
+                //       X11 default 96 DPI and calculate from the CRTC viewport
+                // NOTE: These members are affected by rotation, unlike the mode
+                //       info and output info members
+                widthMM  = (int) (ci->width * 25.4f / 96.f);
+                heightMM = (int) (ci->height * 25.4f / 96.f);
+            }
+
+            _GLFWmonitor* monitor = _glfwAllocMonitor(oi->name, widthMM, heightMM);
+            monitor->x11.output = sr->outputs[i];
+            monitor->x11.crtc   = oi->crtc;
+
+            for (j = 0;  j < screenCount;  j++)
+            {
+                if (screens[j].x_org == ci->x &&
+                    screens[j].y_org == ci->y &&
+                    screens[j].width == ci->width &&
+                    screens[j].height == ci->height)
+                {
+                    monitor->x11.index = j;
+                    break;
+                }
+            }
+
+            if (monitor->x11.output == primary)
+                type = _GLFW_INSERT_FIRST;
+            else
+                type = _GLFW_INSERT_LAST;
+
+            _glfwInputMonitor(monitor, GLFW_CONNECTED, type);
+
+            XRRFreeOutputInfo(oi);
+            XRRFreeCrtcInfo(ci);
+        }
+
+        XRRFreeScreenResources(sr);
+
+        if (screens)
+            XFree(screens);
+
+        for (int i = 0;  i < disconnectedCount;  i++)
+        {
+            if (disconnected[i])
+                _glfwInputMonitor(disconnected[i], GLFW_DISCONNECTED, 0);
+        }
+
+        _glfw_free(disconnected);
+    }
+    else
+    {
+        const int widthMM = DisplayWidthMM(_glfw.x11.display, _glfw.x11.screen);
+        const int heightMM = DisplayHeightMM(_glfw.x11.display, _glfw.x11.screen);
+
+        _glfwInputMonitor(_glfwAllocMonitor("Display", widthMM, heightMM),
+                          GLFW_CONNECTED,
+                          _GLFW_INSERT_FIRST);
+    }
+}
+
+// Set the current video mode for the specified monitor
+//
+void _glfwSetVideoModeX11(_GLFWmonitor* monitor, const GLFWvidmode* desired)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        GLFWvidmode current;
+        RRMode native = None;
+
+        const GLFWvidmode* best = _glfwChooseVideoMode(monitor, desired);
+        _glfwGetVideoModeX11(monitor, &current);
+        if (_glfwCompareVideoModes(&current, best) == 0)
+            return;
+
+        XRRScreenResources* sr =
+            XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
+        XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
+        XRROutputInfo* oi = XRRGetOutputInfo(_glfw.x11.display, sr, monitor->x11.output);
+
+        for (int i = 0;  i < oi->nmode;  i++)
+        {
+            const XRRModeInfo* mi = getModeInfo(sr, oi->modes[i]);
+            if (!modeIsGood(mi))
+                continue;
+
+            const GLFWvidmode mode = vidmodeFromModeInfo(mi, ci);
+            if (_glfwCompareVideoModes(best, &mode) == 0)
+            {
+                native = mi->id;
+                break;
+            }
+        }
+
+        if (native)
+        {
+            if (monitor->x11.oldMode == None)
+                monitor->x11.oldMode = ci->mode;
+
+            XRRSetCrtcConfig(_glfw.x11.display,
+                             sr, monitor->x11.crtc,
+                             CurrentTime,
+                             ci->x, ci->y,
+                             native,
+                             ci->rotation,
+                             ci->outputs,
+                             ci->noutput);
+        }
+
+        XRRFreeOutputInfo(oi);
+        XRRFreeCrtcInfo(ci);
+        XRRFreeScreenResources(sr);
+    }
+}
+
+// Restore the saved (original) video mode for the specified monitor
+//
+void _glfwRestoreVideoModeX11(_GLFWmonitor* monitor)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        if (monitor->x11.oldMode == None)
+            return;
+
+        XRRScreenResources* sr =
+            XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
+        XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
+
+        XRRSetCrtcConfig(_glfw.x11.display,
+                         sr, monitor->x11.crtc,
+                         CurrentTime,
+                         ci->x, ci->y,
+                         monitor->x11.oldMode,
+                         ci->rotation,
+                         ci->outputs,
+                         ci->noutput);
+
+        XRRFreeCrtcInfo(ci);
+        XRRFreeScreenResources(sr);
+
+        monitor->x11.oldMode = None;
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwFreeMonitorX11(_GLFWmonitor* monitor)
+{
+}
+
+void _glfwGetMonitorPosX11(_GLFWmonitor* monitor, int* xpos, int* ypos)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        XRRScreenResources* sr =
+            XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
+        XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
+
+        if (ci)
+        {
+            if (xpos)
+                *xpos = ci->x;
+            if (ypos)
+                *ypos = ci->y;
+
+            XRRFreeCrtcInfo(ci);
+        }
+
+        XRRFreeScreenResources(sr);
+    }
+}
+
+void _glfwGetMonitorContentScaleX11(_GLFWmonitor* monitor,
+                                    float* xscale, float* yscale)
+{
+    if (xscale)
+        *xscale = _glfw.x11.contentScaleX;
+    if (yscale)
+        *yscale = _glfw.x11.contentScaleY;
+}
+
+void _glfwGetMonitorWorkareaX11(_GLFWmonitor* monitor,
+                                int* xpos, int* ypos,
+                                int* width, int* height)
+{
+    int areaX = 0, areaY = 0, areaWidth = 0, areaHeight = 0;
+
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        XRRScreenResources* sr =
+            XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
+        XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
+
+        areaX = ci->x;
+        areaY = ci->y;
+
+        const XRRModeInfo* mi = getModeInfo(sr, ci->mode);
+
+        if (ci->rotation == RR_Rotate_90 || ci->rotation == RR_Rotate_270)
+        {
+            areaWidth  = mi->height;
+            areaHeight = mi->width;
+        }
+        else
+        {
+            areaWidth  = mi->width;
+            areaHeight = mi->height;
+        }
+
+        XRRFreeCrtcInfo(ci);
+        XRRFreeScreenResources(sr);
+    }
+    else
+    {
+        areaWidth  = DisplayWidth(_glfw.x11.display, _glfw.x11.screen);
+        areaHeight = DisplayHeight(_glfw.x11.display, _glfw.x11.screen);
+    }
+
+    if (_glfw.x11.NET_WORKAREA && _glfw.x11.NET_CURRENT_DESKTOP)
+    {
+        Atom* extents = NULL;
+        Atom* desktop = NULL;
+        const unsigned long extentCount =
+            _glfwGetWindowPropertyX11(_glfw.x11.root,
+                                      _glfw.x11.NET_WORKAREA,
+                                      XA_CARDINAL,
+                                      (unsigned char**) &extents);
+
+        if (_glfwGetWindowPropertyX11(_glfw.x11.root,
+                                      _glfw.x11.NET_CURRENT_DESKTOP,
+                                      XA_CARDINAL,
+                                      (unsigned char**) &desktop) > 0)
+        {
+            if (extentCount >= 4 && *desktop < extentCount / 4)
+            {
+                const int globalX = extents[*desktop * 4 + 0];
+                const int globalY = extents[*desktop * 4 + 1];
+                const int globalWidth  = extents[*desktop * 4 + 2];
+                const int globalHeight = extents[*desktop * 4 + 3];
+
+                if (areaX < globalX)
+                {
+                    areaWidth -= globalX - areaX;
+                    areaX = globalX;
+                }
+
+                if (areaY < globalY)
+                {
+                    areaHeight -= globalY - areaY;
+                    areaY = globalY;
+                }
+
+                if (areaX + areaWidth > globalX + globalWidth)
+                    areaWidth = globalX - areaX + globalWidth;
+                if (areaY + areaHeight > globalY + globalHeight)
+                    areaHeight = globalY - areaY + globalHeight;
+            }
+        }
+
+        if (extents)
+            XFree(extents);
+        if (desktop)
+            XFree(desktop);
+    }
+
+    if (xpos)
+        *xpos = areaX;
+    if (ypos)
+        *ypos = areaY;
+    if (width)
+        *width = areaWidth;
+    if (height)
+        *height = areaHeight;
+}
+
+GLFWvidmode* _glfwGetVideoModesX11(_GLFWmonitor* monitor, int* count)
+{
+    GLFWvidmode* result;
+
+    *count = 0;
+
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        XRRScreenResources* sr =
+            XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
+        XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
+        XRROutputInfo* oi = XRRGetOutputInfo(_glfw.x11.display, sr, monitor->x11.output);
+
+        result = _glfw_calloc(oi->nmode, sizeof(GLFWvidmode));
+
+        for (int i = 0;  i < oi->nmode;  i++)
+        {
+            const XRRModeInfo* mi = getModeInfo(sr, oi->modes[i]);
+            if (!modeIsGood(mi))
+                continue;
+
+            const GLFWvidmode mode = vidmodeFromModeInfo(mi, ci);
+            int j;
+
+            for (j = 0;  j < *count;  j++)
+            {
+                if (_glfwCompareVideoModes(result + j, &mode) == 0)
+                    break;
+            }
+
+            // Skip duplicate modes
+            if (j < *count)
+                continue;
+
+            (*count)++;
+            result[*count - 1] = mode;
+        }
+
+        XRRFreeOutputInfo(oi);
+        XRRFreeCrtcInfo(ci);
+        XRRFreeScreenResources(sr);
+    }
+    else
+    {
+        *count = 1;
+        result = _glfw_calloc(1, sizeof(GLFWvidmode));
+        _glfwGetVideoModeX11(monitor, result);
+    }
+
+    return result;
+}
+
+GLFWbool _glfwGetVideoModeX11(_GLFWmonitor* monitor, GLFWvidmode* mode)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        XRRScreenResources* sr =
+            XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
+        const XRRModeInfo* mi = NULL;
+
+        XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
+        if (ci)
+        {
+            mi = getModeInfo(sr, ci->mode);
+            if (mi)
+                *mode = vidmodeFromModeInfo(mi, ci);
+
+            XRRFreeCrtcInfo(ci);
+        }
+
+        XRRFreeScreenResources(sr);
+
+        if (!mi)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to query video mode");
+            return GLFW_FALSE;
+        }
+    }
+    else
+    {
+        mode->width = DisplayWidth(_glfw.x11.display, _glfw.x11.screen);
+        mode->height = DisplayHeight(_glfw.x11.display, _glfw.x11.screen);
+        mode->refreshRate = 0;
+
+        _glfwSplitBPP(DefaultDepth(_glfw.x11.display, _glfw.x11.screen),
+                      &mode->redBits, &mode->greenBits, &mode->blueBits);
+    }
+
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwGetGammaRampX11(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
+    {
+        const size_t size = XRRGetCrtcGammaSize(_glfw.x11.display,
+                                                monitor->x11.crtc);
+        XRRCrtcGamma* gamma = XRRGetCrtcGamma(_glfw.x11.display,
+                                              monitor->x11.crtc);
+
+        _glfwAllocGammaArrays(ramp, size);
+
+        memcpy(ramp->red,   gamma->red,   size * sizeof(unsigned short));
+        memcpy(ramp->green, gamma->green, size * sizeof(unsigned short));
+        memcpy(ramp->blue,  gamma->blue,  size * sizeof(unsigned short));
+
+        XRRFreeGamma(gamma);
+        return GLFW_TRUE;
+    }
+    else if (_glfw.x11.vidmode.available)
+    {
+        int size;
+        XF86VidModeGetGammaRampSize(_glfw.x11.display, _glfw.x11.screen, &size);
+
+        _glfwAllocGammaArrays(ramp, size);
+
+        XF86VidModeGetGammaRamp(_glfw.x11.display,
+                                _glfw.x11.screen,
+                                ramp->size, ramp->red, ramp->green, ramp->blue);
+        return GLFW_TRUE;
+    }
+    else
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "X11: Gamma ramp access not supported by server");
+        return GLFW_FALSE;
+    }
+}
+
+void _glfwSetGammaRampX11(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
+    {
+        if (XRRGetCrtcGammaSize(_glfw.x11.display, monitor->x11.crtc) != ramp->size)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "X11: Gamma ramp size must match current ramp size");
+            return;
+        }
+
+        XRRCrtcGamma* gamma = XRRAllocGamma(ramp->size);
+
+        memcpy(gamma->red,   ramp->red,   ramp->size * sizeof(unsigned short));
+        memcpy(gamma->green, ramp->green, ramp->size * sizeof(unsigned short));
+        memcpy(gamma->blue,  ramp->blue,  ramp->size * sizeof(unsigned short));
+
+        XRRSetCrtcGamma(_glfw.x11.display, monitor->x11.crtc, gamma);
+        XRRFreeGamma(gamma);
+    }
+    else if (_glfw.x11.vidmode.available)
+    {
+        XF86VidModeSetGammaRamp(_glfw.x11.display,
+                                _glfw.x11.screen,
+                                ramp->size,
+                                (unsigned short*) ramp->red,
+                                (unsigned short*) ramp->green,
+                                (unsigned short*) ramp->blue);
+    }
+    else
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "X11: Gamma ramp access not supported by server");
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI RRCrtc glfwGetX11Adapter(GLFWmonitor* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(None);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "X11: Platform not initialized");
+        return None;
+    }
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    return monitor->x11.crtc;
+}
+
+GLFWAPI RROutput glfwGetX11Monitor(GLFWmonitor* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(None);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "X11: Platform not initialized");
+        return None;
+    }
+
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    return monitor->x11.output;
+}
+
+#endif // _GLFW_X11
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/x11_platform.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/x11_platform.h
new file mode 100644
index 000000000000..30326c5be0ba
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/x11_platform.h
@@ -0,0 +1,1004 @@
+//========================================================================
+// GLFW 3.5 X11 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <unistd.h>
+#include <signal.h>
+#include <stdint.h>
+
+#include <X11/Xlib.h>
+#include <X11/keysym.h>
+#include <X11/Xatom.h>
+#include <X11/Xresource.h>
+#include <X11/Xcursor/Xcursor.h>
+
+// The XRandR extension provides mode setting and gamma control
+#include <X11/extensions/Xrandr.h>
+
+// The Xkb extension provides improved keyboard support
+#include <X11/XKBlib.h>
+
+// The Xinerama extension provides legacy monitor indices
+#include <X11/extensions/Xinerama.h>
+
+// The XInput extension provides raw mouse motion input
+#include <X11/extensions/XInput2.h>
+
+// The Shape extension provides custom window shapes
+#include <X11/extensions/shape.h>
+
+#define GLX_VENDOR 1
+#define GLX_RGBA_BIT 0x00000001
+#define GLX_WINDOW_BIT 0x00000001
+#define GLX_DRAWABLE_TYPE 0x8010
+#define GLX_RENDER_TYPE 0x8011
+#define GLX_RGBA_TYPE 0x8014
+#define GLX_DOUBLEBUFFER 5
+#define GLX_STEREO 6
+#define GLX_AUX_BUFFERS 7
+#define GLX_RED_SIZE 8
+#define GLX_GREEN_SIZE 9
+#define GLX_BLUE_SIZE 10
+#define GLX_ALPHA_SIZE 11
+#define GLX_DEPTH_SIZE 12
+#define GLX_STENCIL_SIZE 13
+#define GLX_ACCUM_RED_SIZE 14
+#define GLX_ACCUM_GREEN_SIZE 15
+#define GLX_ACCUM_BLUE_SIZE 16
+#define GLX_ACCUM_ALPHA_SIZE 17
+#define GLX_SAMPLES 0x186a1
+#define GLX_VISUAL_ID 0x800b
+
+#define GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB 0x20b2
+#define GLX_CONTEXT_DEBUG_BIT_ARB 0x00000001
+#define GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x00000002
+#define GLX_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001
+#define GLX_CONTEXT_PROFILE_MASK_ARB 0x9126
+#define GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x00000002
+#define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091
+#define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092
+#define GLX_CONTEXT_FLAGS_ARB 0x2094
+#define GLX_CONTEXT_ES2_PROFILE_BIT_EXT 0x00000004
+#define GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB 0x00000004
+#define GLX_LOSE_CONTEXT_ON_RESET_ARB 0x8252
+#define GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB 0x8256
+#define GLX_NO_RESET_NOTIFICATION_ARB 0x8261
+#define GLX_CONTEXT_RELEASE_BEHAVIOR_ARB 0x2097
+#define GLX_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB 0
+#define GLX_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB 0x2098
+#define GLX_CONTEXT_OPENGL_NO_ERROR_ARB 0x31b3
+
+typedef XID GLXWindow;
+typedef XID GLXDrawable;
+typedef struct __GLXFBConfig* GLXFBConfig;
+typedef struct __GLXcontext* GLXContext;
+typedef void (*__GLXextproc)(void);
+
+typedef XClassHint* (* PFN_XAllocClassHint)(void);
+typedef XSizeHints* (* PFN_XAllocSizeHints)(void);
+typedef XWMHints* (* PFN_XAllocWMHints)(void);
+typedef int (* PFN_XChangeProperty)(Display*,Window,Atom,Atom,int,int,const unsigned char*,int);
+typedef int (* PFN_XChangeWindowAttributes)(Display*,Window,unsigned long,XSetWindowAttributes*);
+typedef Bool (* PFN_XCheckIfEvent)(Display*,XEvent*,Bool(*)(Display*,XEvent*,XPointer),XPointer);
+typedef Bool (* PFN_XCheckTypedWindowEvent)(Display*,Window,int,XEvent*);
+typedef int (* PFN_XCloseDisplay)(Display*);
+typedef Status (* PFN_XCloseIM)(XIM);
+typedef int (* PFN_XConvertSelection)(Display*,Atom,Atom,Atom,Window,Time);
+typedef Colormap (* PFN_XCreateColormap)(Display*,Window,Visual*,int);
+typedef Cursor (* PFN_XCreateFontCursor)(Display*,unsigned int);
+typedef XIC (* PFN_XCreateIC)(XIM,...);
+typedef Region (* PFN_XCreateRegion)(void);
+typedef Window (* PFN_XCreateWindow)(Display*,Window,int,int,unsigned int,unsigned int,unsigned int,int,unsigned int,Visual*,unsigned long,XSetWindowAttributes*);
+typedef int (* PFN_XDefineCursor)(Display*,Window,Cursor);
+typedef int (* PFN_XDeleteContext)(Display*,XID,XContext);
+typedef int (* PFN_XDeleteProperty)(Display*,Window,Atom);
+typedef void (* PFN_XDestroyIC)(XIC);
+typedef int (* PFN_XDestroyRegion)(Region);
+typedef int (* PFN_XDestroyWindow)(Display*,Window);
+typedef int (* PFN_XDisplayKeycodes)(Display*,int*,int*);
+typedef int (* PFN_XEventsQueued)(Display*,int);
+typedef Bool (* PFN_XFilterEvent)(XEvent*,Window);
+typedef int (* PFN_XFindContext)(Display*,XID,XContext,XPointer*);
+typedef int (* PFN_XFlush)(Display*);
+typedef int (* PFN_XFree)(void*);
+typedef int (* PFN_XFreeColormap)(Display*,Colormap);
+typedef int (* PFN_XFreeCursor)(Display*,Cursor);
+typedef void (* PFN_XFreeEventData)(Display*,XGenericEventCookie*);
+typedef int (* PFN_XGetErrorText)(Display*,int,char*,int);
+typedef Bool (* PFN_XGetEventData)(Display*,XGenericEventCookie*);
+typedef char* (* PFN_XGetICValues)(XIC,...);
+typedef char* (* PFN_XGetIMValues)(XIM,...);
+typedef int (* PFN_XGetInputFocus)(Display*,Window*,int*);
+typedef KeySym* (* PFN_XGetKeyboardMapping)(Display*,KeyCode,int,int*);
+typedef int (* PFN_XGetScreenSaver)(Display*,int*,int*,int*,int*);
+typedef Window (* PFN_XGetSelectionOwner)(Display*,Atom);
+typedef XVisualInfo* (* PFN_XGetVisualInfo)(Display*,long,XVisualInfo*,int*);
+typedef Status (* PFN_XGetWMNormalHints)(Display*,Window,XSizeHints*,long*);
+typedef Status (* PFN_XGetWindowAttributes)(Display*,Window,XWindowAttributes*);
+typedef int (* PFN_XGetWindowProperty)(Display*,Window,Atom,long,long,Bool,Atom,Atom*,int*,unsigned long*,unsigned long*,unsigned char**);
+typedef int (* PFN_XGrabPointer)(Display*,Window,Bool,unsigned int,int,int,Window,Cursor,Time);
+typedef Status (* PFN_XIconifyWindow)(Display*,Window,int);
+typedef Status (* PFN_XInitThreads)(void);
+typedef Atom (* PFN_XInternAtom)(Display*,const char*,Bool);
+typedef int (* PFN_XLookupString)(XKeyEvent*,char*,int,KeySym*,XComposeStatus*);
+typedef int (* PFN_XMapRaised)(Display*,Window);
+typedef int (* PFN_XMapWindow)(Display*,Window);
+typedef int (* PFN_XMoveResizeWindow)(Display*,Window,int,int,unsigned int,unsigned int);
+typedef int (* PFN_XMoveWindow)(Display*,Window,int,int);
+typedef int (* PFN_XNextEvent)(Display*,XEvent*);
+typedef Display* (* PFN_XOpenDisplay)(const char*);
+typedef XIM (* PFN_XOpenIM)(Display*,XrmDatabase*,char*,char*);
+typedef int (* PFN_XPeekEvent)(Display*,XEvent*);
+typedef int (* PFN_XPending)(Display*);
+typedef Bool (* PFN_XQueryExtension)(Display*,const char*,int*,int*,int*);
+typedef Bool (* PFN_XQueryPointer)(Display*,Window,Window*,Window*,int*,int*,int*,int*,unsigned int*);
+typedef int (* PFN_XRaiseWindow)(Display*,Window);
+typedef Bool (* PFN_XRegisterIMInstantiateCallback)(Display*,void*,char*,char*,XIDProc,XPointer);
+typedef int (* PFN_XResizeWindow)(Display*,Window,unsigned int,unsigned int);
+typedef char* (* PFN_XResourceManagerString)(Display*);
+typedef int (* PFN_XSaveContext)(Display*,XID,XContext,const char*);
+typedef int (* PFN_XSelectInput)(Display*,Window,long);
+typedef Status (* PFN_XSendEvent)(Display*,Window,Bool,long,XEvent*);
+typedef int (* PFN_XSetClassHint)(Display*,Window,XClassHint*);
+typedef XErrorHandler (* PFN_XSetErrorHandler)(XErrorHandler);
+typedef void (* PFN_XSetICFocus)(XIC);
+typedef char* (* PFN_XSetIMValues)(XIM,...);
+typedef int (* PFN_XSetInputFocus)(Display*,Window,int,Time);
+typedef char* (* PFN_XSetLocaleModifiers)(const char*);
+typedef int (* PFN_XSetScreenSaver)(Display*,int,int,int,int);
+typedef int (* PFN_XSetSelectionOwner)(Display*,Atom,Window,Time);
+typedef int (* PFN_XSetWMHints)(Display*,Window,XWMHints*);
+typedef void (* PFN_XSetWMNormalHints)(Display*,Window,XSizeHints*);
+typedef Status (* PFN_XSetWMProtocols)(Display*,Window,Atom*,int);
+typedef Bool (* PFN_XSupportsLocale)(void);
+typedef int (* PFN_XSync)(Display*,Bool);
+typedef Bool (* PFN_XTranslateCoordinates)(Display*,Window,Window,int,int,int*,int*,Window*);
+typedef int (* PFN_XUndefineCursor)(Display*,Window);
+typedef int (* PFN_XUngrabPointer)(Display*,Time);
+typedef int (* PFN_XUnmapWindow)(Display*,Window);
+typedef void (* PFN_XUnsetICFocus)(XIC);
+typedef VisualID (* PFN_XVisualIDFromVisual)(Visual*);
+typedef int (* PFN_XWarpPointer)(Display*,Window,Window,int,int,unsigned int,unsigned int,int,int);
+typedef void (* PFN_XkbFreeKeyboard)(XkbDescPtr,unsigned int,Bool);
+typedef void (* PFN_XkbFreeNames)(XkbDescPtr,unsigned int,Bool);
+typedef XkbDescPtr (* PFN_XkbGetMap)(Display*,unsigned int,unsigned int);
+typedef Status (* PFN_XkbGetNames)(Display*,unsigned int,XkbDescPtr);
+typedef Status (* PFN_XkbGetState)(Display*,unsigned int,XkbStatePtr);
+typedef KeySym (* PFN_XkbKeycodeToKeysym)(Display*,KeyCode,int,int);
+typedef Bool (* PFN_XkbQueryExtension)(Display*,int*,int*,int*,int*,int*);
+typedef Bool (* PFN_XkbSelectEventDetails)(Display*,unsigned int,unsigned int,unsigned long,unsigned long);
+typedef Bool (* PFN_XkbSetDetectableAutoRepeat)(Display*,Bool,Bool*);
+typedef void (* PFN_XrmDestroyDatabase)(XrmDatabase);
+typedef Bool (* PFN_XrmGetResource)(XrmDatabase,const char*,const char*,char**,XrmValue*);
+typedef XrmDatabase (* PFN_XrmGetStringDatabase)(const char*);
+typedef void (* PFN_XrmInitialize)(void);
+typedef XrmQuark (* PFN_XrmUniqueQuark)(void);
+typedef Bool (* PFN_XUnregisterIMInstantiateCallback)(Display*,void*,char*,char*,XIDProc,XPointer);
+typedef int (* PFN_Xutf8LookupString)(XIC,XKeyPressedEvent*,char*,int,KeySym*,Status*);
+typedef void (* PFN_Xutf8SetWMProperties)(Display*,Window,const char*,const char*,char**,int,XSizeHints*,XWMHints*,XClassHint*);
+#define XAllocClassHint _glfw.x11.xlib.AllocClassHint
+#define XAllocSizeHints _glfw.x11.xlib.AllocSizeHints
+#define XAllocWMHints _glfw.x11.xlib.AllocWMHints
+#define XChangeProperty _glfw.x11.xlib.ChangeProperty
+#define XChangeWindowAttributes _glfw.x11.xlib.ChangeWindowAttributes
+#define XCheckIfEvent _glfw.x11.xlib.CheckIfEvent
+#define XCheckTypedWindowEvent _glfw.x11.xlib.CheckTypedWindowEvent
+#define XCloseDisplay _glfw.x11.xlib.CloseDisplay
+#define XCloseIM _glfw.x11.xlib.CloseIM
+#define XConvertSelection _glfw.x11.xlib.ConvertSelection
+#define XCreateColormap _glfw.x11.xlib.CreateColormap
+#define XCreateFontCursor _glfw.x11.xlib.CreateFontCursor
+#define XCreateIC _glfw.x11.xlib.CreateIC
+#define XCreateRegion _glfw.x11.xlib.CreateRegion
+#define XCreateWindow _glfw.x11.xlib.CreateWindow
+#define XDefineCursor _glfw.x11.xlib.DefineCursor
+#define XDeleteContext _glfw.x11.xlib.DeleteContext
+#define XDeleteProperty _glfw.x11.xlib.DeleteProperty
+#define XDestroyIC _glfw.x11.xlib.DestroyIC
+#define XDestroyRegion _glfw.x11.xlib.DestroyRegion
+#define XDestroyWindow _glfw.x11.xlib.DestroyWindow
+#define XDisplayKeycodes _glfw.x11.xlib.DisplayKeycodes
+#define XEventsQueued _glfw.x11.xlib.EventsQueued
+#define XFilterEvent _glfw.x11.xlib.FilterEvent
+#define XFindContext _glfw.x11.xlib.FindContext
+#define XFlush _glfw.x11.xlib.Flush
+#define XFree _glfw.x11.xlib.Free
+#define XFreeColormap _glfw.x11.xlib.FreeColormap
+#define XFreeCursor _glfw.x11.xlib.FreeCursor
+#define XFreeEventData _glfw.x11.xlib.FreeEventData
+#define XGetErrorText _glfw.x11.xlib.GetErrorText
+#define XGetEventData _glfw.x11.xlib.GetEventData
+#define XGetICValues _glfw.x11.xlib.GetICValues
+#define XGetIMValues _glfw.x11.xlib.GetIMValues
+#define XGetInputFocus _glfw.x11.xlib.GetInputFocus
+#define XGetKeyboardMapping _glfw.x11.xlib.GetKeyboardMapping
+#define XGetScreenSaver _glfw.x11.xlib.GetScreenSaver
+#define XGetSelectionOwner _glfw.x11.xlib.GetSelectionOwner
+#define XGetVisualInfo _glfw.x11.xlib.GetVisualInfo
+#define XGetWMNormalHints _glfw.x11.xlib.GetWMNormalHints
+#define XGetWindowAttributes _glfw.x11.xlib.GetWindowAttributes
+#define XGetWindowProperty _glfw.x11.xlib.GetWindowProperty
+#define XGrabPointer _glfw.x11.xlib.GrabPointer
+#define XIconifyWindow _glfw.x11.xlib.IconifyWindow
+#define XInternAtom _glfw.x11.xlib.InternAtom
+#define XLookupString _glfw.x11.xlib.LookupString
+#define XMapRaised _glfw.x11.xlib.MapRaised
+#define XMapWindow _glfw.x11.xlib.MapWindow
+#define XMoveResizeWindow _glfw.x11.xlib.MoveResizeWindow
+#define XMoveWindow _glfw.x11.xlib.MoveWindow
+#define XNextEvent _glfw.x11.xlib.NextEvent
+#define XOpenIM _glfw.x11.xlib.OpenIM
+#define XPeekEvent _glfw.x11.xlib.PeekEvent
+#define XPending _glfw.x11.xlib.Pending
+#define XQueryExtension _glfw.x11.xlib.QueryExtension
+#define XQueryPointer _glfw.x11.xlib.QueryPointer
+#define XRaiseWindow _glfw.x11.xlib.RaiseWindow
+#define XRegisterIMInstantiateCallback _glfw.x11.xlib.RegisterIMInstantiateCallback
+#define XResizeWindow _glfw.x11.xlib.ResizeWindow
+#define XResourceManagerString _glfw.x11.xlib.ResourceManagerString
+#define XSaveContext _glfw.x11.xlib.SaveContext
+#define XSelectInput _glfw.x11.xlib.SelectInput
+#define XSendEvent _glfw.x11.xlib.SendEvent
+#define XSetClassHint _glfw.x11.xlib.SetClassHint
+#define XSetErrorHandler _glfw.x11.xlib.SetErrorHandler
+#define XSetICFocus _glfw.x11.xlib.SetICFocus
+#define XSetIMValues _glfw.x11.xlib.SetIMValues
+#define XSetInputFocus _glfw.x11.xlib.SetInputFocus
+#define XSetLocaleModifiers _glfw.x11.xlib.SetLocaleModifiers
+#define XSetScreenSaver _glfw.x11.xlib.SetScreenSaver
+#define XSetSelectionOwner _glfw.x11.xlib.SetSelectionOwner
+#define XSetWMHints _glfw.x11.xlib.SetWMHints
+#define XSetWMNormalHints _glfw.x11.xlib.SetWMNormalHints
+#define XSetWMProtocols _glfw.x11.xlib.SetWMProtocols
+#define XSupportsLocale _glfw.x11.xlib.SupportsLocale
+#define XSync _glfw.x11.xlib.Sync
+#define XTranslateCoordinates _glfw.x11.xlib.TranslateCoordinates
+#define XUndefineCursor _glfw.x11.xlib.UndefineCursor
+#define XUngrabPointer _glfw.x11.xlib.UngrabPointer
+#define XUnmapWindow _glfw.x11.xlib.UnmapWindow
+#define XUnsetICFocus _glfw.x11.xlib.UnsetICFocus
+#define XVisualIDFromVisual _glfw.x11.xlib.VisualIDFromVisual
+#define XWarpPointer _glfw.x11.xlib.WarpPointer
+#define XkbFreeKeyboard _glfw.x11.xkb.FreeKeyboard
+#define XkbFreeNames _glfw.x11.xkb.FreeNames
+#define XkbGetMap _glfw.x11.xkb.GetMap
+#define XkbGetNames _glfw.x11.xkb.GetNames
+#define XkbGetState _glfw.x11.xkb.GetState
+#define XkbKeycodeToKeysym _glfw.x11.xkb.KeycodeToKeysym
+#define XkbQueryExtension _glfw.x11.xkb.QueryExtension
+#define XkbSelectEventDetails _glfw.x11.xkb.SelectEventDetails
+#define XkbSetDetectableAutoRepeat _glfw.x11.xkb.SetDetectableAutoRepeat
+#define XrmDestroyDatabase _glfw.x11.xrm.DestroyDatabase
+#define XrmGetResource _glfw.x11.xrm.GetResource
+#define XrmGetStringDatabase _glfw.x11.xrm.GetStringDatabase
+#define XrmUniqueQuark _glfw.x11.xrm.UniqueQuark
+#define XUnregisterIMInstantiateCallback _glfw.x11.xlib.UnregisterIMInstantiateCallback
+#define Xutf8LookupString _glfw.x11.xlib.utf8LookupString
+#define Xutf8SetWMProperties _glfw.x11.xlib.utf8SetWMProperties
+
+typedef XRRCrtcGamma* (* PFN_XRRAllocGamma)(int);
+typedef void (* PFN_XRRFreeCrtcInfo)(XRRCrtcInfo*);
+typedef void (* PFN_XRRFreeGamma)(XRRCrtcGamma*);
+typedef void (* PFN_XRRFreeOutputInfo)(XRROutputInfo*);
+typedef void (* PFN_XRRFreeScreenResources)(XRRScreenResources*);
+typedef XRRCrtcGamma* (* PFN_XRRGetCrtcGamma)(Display*,RRCrtc);
+typedef int (* PFN_XRRGetCrtcGammaSize)(Display*,RRCrtc);
+typedef XRRCrtcInfo* (* PFN_XRRGetCrtcInfo) (Display*,XRRScreenResources*,RRCrtc);
+typedef XRROutputInfo* (* PFN_XRRGetOutputInfo)(Display*,XRRScreenResources*,RROutput);
+typedef RROutput (* PFN_XRRGetOutputPrimary)(Display*,Window);
+typedef XRRScreenResources* (* PFN_XRRGetScreenResourcesCurrent)(Display*,Window);
+typedef Bool (* PFN_XRRQueryExtension)(Display*,int*,int*);
+typedef Status (* PFN_XRRQueryVersion)(Display*,int*,int*);
+typedef void (* PFN_XRRSelectInput)(Display*,Window,int);
+typedef Status (* PFN_XRRSetCrtcConfig)(Display*,XRRScreenResources*,RRCrtc,Time,int,int,RRMode,Rotation,RROutput*,int);
+typedef void (* PFN_XRRSetCrtcGamma)(Display*,RRCrtc,XRRCrtcGamma*);
+typedef int (* PFN_XRRUpdateConfiguration)(XEvent*);
+#define XRRAllocGamma _glfw.x11.randr.AllocGamma
+#define XRRFreeCrtcInfo _glfw.x11.randr.FreeCrtcInfo
+#define XRRFreeGamma _glfw.x11.randr.FreeGamma
+#define XRRFreeOutputInfo _glfw.x11.randr.FreeOutputInfo
+#define XRRFreeScreenResources _glfw.x11.randr.FreeScreenResources
+#define XRRGetCrtcGamma _glfw.x11.randr.GetCrtcGamma
+#define XRRGetCrtcGammaSize _glfw.x11.randr.GetCrtcGammaSize
+#define XRRGetCrtcInfo _glfw.x11.randr.GetCrtcInfo
+#define XRRGetOutputInfo _glfw.x11.randr.GetOutputInfo
+#define XRRGetOutputPrimary _glfw.x11.randr.GetOutputPrimary
+#define XRRGetScreenResourcesCurrent _glfw.x11.randr.GetScreenResourcesCurrent
+#define XRRQueryExtension _glfw.x11.randr.QueryExtension
+#define XRRQueryVersion _glfw.x11.randr.QueryVersion
+#define XRRSelectInput _glfw.x11.randr.SelectInput
+#define XRRSetCrtcConfig _glfw.x11.randr.SetCrtcConfig
+#define XRRSetCrtcGamma _glfw.x11.randr.SetCrtcGamma
+#define XRRUpdateConfiguration _glfw.x11.randr.UpdateConfiguration
+
+typedef XcursorImage* (* PFN_XcursorImageCreate)(int,int);
+typedef void (* PFN_XcursorImageDestroy)(XcursorImage*);
+typedef Cursor (* PFN_XcursorImageLoadCursor)(Display*,const XcursorImage*);
+typedef char* (* PFN_XcursorGetTheme)(Display*);
+typedef int (* PFN_XcursorGetDefaultSize)(Display*);
+typedef XcursorImage* (* PFN_XcursorLibraryLoadImage)(const char*,const char*,int);
+#define XcursorImageCreate _glfw.x11.xcursor.ImageCreate
+#define XcursorImageDestroy _glfw.x11.xcursor.ImageDestroy
+#define XcursorImageLoadCursor _glfw.x11.xcursor.ImageLoadCursor
+#define XcursorGetTheme _glfw.x11.xcursor.GetTheme
+#define XcursorGetDefaultSize _glfw.x11.xcursor.GetDefaultSize
+#define XcursorLibraryLoadImage _glfw.x11.xcursor.LibraryLoadImage
+
+typedef Bool (* PFN_XineramaIsActive)(Display*);
+typedef Bool (* PFN_XineramaQueryExtension)(Display*,int*,int*);
+typedef XineramaScreenInfo* (* PFN_XineramaQueryScreens)(Display*,int*);
+#define XineramaIsActive _glfw.x11.xinerama.IsActive
+#define XineramaQueryExtension _glfw.x11.xinerama.QueryExtension
+#define XineramaQueryScreens _glfw.x11.xinerama.QueryScreens
+
+typedef XID xcb_window_t;
+typedef XID xcb_visualid_t;
+typedef struct xcb_connection_t xcb_connection_t;
+typedef xcb_connection_t* (* PFN_XGetXCBConnection)(Display*);
+#define XGetXCBConnection _glfw.x11.x11xcb.GetXCBConnection
+
+typedef Bool (* PFN_XF86VidModeQueryExtension)(Display*,int*,int*);
+typedef Bool (* PFN_XF86VidModeGetGammaRamp)(Display*,int,int,unsigned short*,unsigned short*,unsigned short*);
+typedef Bool (* PFN_XF86VidModeSetGammaRamp)(Display*,int,int,unsigned short*,unsigned short*,unsigned short*);
+typedef Bool (* PFN_XF86VidModeGetGammaRampSize)(Display*,int,int*);
+#define XF86VidModeQueryExtension _glfw.x11.vidmode.QueryExtension
+#define XF86VidModeGetGammaRamp _glfw.x11.vidmode.GetGammaRamp
+#define XF86VidModeSetGammaRamp _glfw.x11.vidmode.SetGammaRamp
+#define XF86VidModeGetGammaRampSize _glfw.x11.vidmode.GetGammaRampSize
+
+typedef Status (* PFN_XIQueryVersion)(Display*,int*,int*);
+typedef int (* PFN_XISelectEvents)(Display*,Window,XIEventMask*,int);
+#define XIQueryVersion _glfw.x11.xi.QueryVersion
+#define XISelectEvents _glfw.x11.xi.SelectEvents
+
+typedef Bool (* PFN_XRenderQueryExtension)(Display*,int*,int*);
+typedef Status (* PFN_XRenderQueryVersion)(Display*dpy,int*,int*);
+typedef XRenderPictFormat* (* PFN_XRenderFindVisualFormat)(Display*,Visual const*);
+#define XRenderQueryExtension _glfw.x11.xrender.QueryExtension
+#define XRenderQueryVersion _glfw.x11.xrender.QueryVersion
+#define XRenderFindVisualFormat _glfw.x11.xrender.FindVisualFormat
+
+typedef Bool (* PFN_XShapeQueryExtension)(Display*,int*,int*);
+typedef Status (* PFN_XShapeQueryVersion)(Display*dpy,int*,int*);
+typedef void (* PFN_XShapeCombineRegion)(Display*,Window,int,int,int,Region,int);
+typedef void (* PFN_XShapeCombineMask)(Display*,Window,int,int,int,Pixmap,int);
+
+#define XShapeQueryExtension _glfw.x11.xshape.QueryExtension
+#define XShapeQueryVersion _glfw.x11.xshape.QueryVersion
+#define XShapeCombineRegion _glfw.x11.xshape.ShapeCombineRegion
+#define XShapeCombineMask _glfw.x11.xshape.ShapeCombineMask
+
+typedef int (*PFNGLXGETFBCONFIGATTRIBPROC)(Display*,GLXFBConfig,int,int*);
+typedef const char* (*PFNGLXGETCLIENTSTRINGPROC)(Display*,int);
+typedef Bool (*PFNGLXQUERYEXTENSIONPROC)(Display*,int*,int*);
+typedef Bool (*PFNGLXQUERYVERSIONPROC)(Display*,int*,int*);
+typedef void (*PFNGLXDESTROYCONTEXTPROC)(Display*,GLXContext);
+typedef Bool (*PFNGLXMAKECURRENTPROC)(Display*,GLXDrawable,GLXContext);
+typedef void (*PFNGLXSWAPBUFFERSPROC)(Display*,GLXDrawable);
+typedef const char* (*PFNGLXQUERYEXTENSIONSSTRINGPROC)(Display*,int);
+typedef GLXFBConfig* (*PFNGLXGETFBCONFIGSPROC)(Display*,int,int*);
+typedef GLXContext (*PFNGLXCREATENEWCONTEXTPROC)(Display*,GLXFBConfig,int,GLXContext,Bool);
+typedef __GLXextproc (* PFNGLXGETPROCADDRESSPROC)(const GLubyte *procName);
+typedef void (*PFNGLXSWAPINTERVALEXTPROC)(Display*,GLXDrawable,int);
+typedef XVisualInfo* (*PFNGLXGETVISUALFROMFBCONFIGPROC)(Display*,GLXFBConfig);
+typedef GLXWindow (*PFNGLXCREATEWINDOWPROC)(Display*,GLXFBConfig,Window,const int*);
+typedef void (*PFNGLXDESTROYWINDOWPROC)(Display*,GLXWindow);
+
+typedef int (*PFNGLXSWAPINTERVALMESAPROC)(int);
+typedef int (*PFNGLXSWAPINTERVALSGIPROC)(int);
+typedef GLXContext (*PFNGLXCREATECONTEXTATTRIBSARBPROC)(Display*,GLXFBConfig,GLXContext,Bool,const int*);
+
+// libGL.so function pointer typedefs
+#define glXGetFBConfigs _glfw.glx.GetFBConfigs
+#define glXGetFBConfigAttrib _glfw.glx.GetFBConfigAttrib
+#define glXGetClientString _glfw.glx.GetClientString
+#define glXQueryExtension _glfw.glx.QueryExtension
+#define glXQueryVersion _glfw.glx.QueryVersion
+#define glXDestroyContext _glfw.glx.DestroyContext
+#define glXMakeCurrent _glfw.glx.MakeCurrent
+#define glXSwapBuffers _glfw.glx.SwapBuffers
+#define glXQueryExtensionsString _glfw.glx.QueryExtensionsString
+#define glXCreateNewContext _glfw.glx.CreateNewContext
+#define glXGetVisualFromFBConfig _glfw.glx.GetVisualFromFBConfig
+#define glXCreateWindow _glfw.glx.CreateWindow
+#define glXDestroyWindow _glfw.glx.DestroyWindow
+
+typedef VkFlags VkXlibSurfaceCreateFlagsKHR;
+typedef VkFlags VkXcbSurfaceCreateFlagsKHR;
+
+typedef struct VkXlibSurfaceCreateInfoKHR
+{
+    VkStructureType             sType;
+    const void*                 pNext;
+    VkXlibSurfaceCreateFlagsKHR flags;
+    Display*                    dpy;
+    Window                      window;
+} VkXlibSurfaceCreateInfoKHR;
+
+typedef struct VkXcbSurfaceCreateInfoKHR
+{
+    VkStructureType             sType;
+    const void*                 pNext;
+    VkXcbSurfaceCreateFlagsKHR  flags;
+    xcb_connection_t*           connection;
+    xcb_window_t                window;
+} VkXcbSurfaceCreateInfoKHR;
+
+typedef VkResult (APIENTRY *PFN_vkCreateXlibSurfaceKHR)(VkInstance,const VkXlibSurfaceCreateInfoKHR*,const VkAllocationCallbacks*,VkSurfaceKHR*);
+typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceXlibPresentationSupportKHR)(VkPhysicalDevice,uint32_t,Display*,VisualID);
+typedef VkResult (APIENTRY *PFN_vkCreateXcbSurfaceKHR)(VkInstance,const VkXcbSurfaceCreateInfoKHR*,const VkAllocationCallbacks*,VkSurfaceKHR*);
+typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR)(VkPhysicalDevice,uint32_t,xcb_connection_t*,xcb_visualid_t);
+
+#include "xkb_unicode.h"
+#include "posix_poll.h"
+
+#define GLFW_X11_WINDOW_STATE           _GLFWwindowX11 x11;
+#define GLFW_X11_LIBRARY_WINDOW_STATE   _GLFWlibraryX11 x11;
+#define GLFW_X11_MONITOR_STATE          _GLFWmonitorX11 x11;
+#define GLFW_X11_CURSOR_STATE           _GLFWcursorX11 x11;
+
+#define GLFW_GLX_CONTEXT_STATE          _GLFWcontextGLX glx;
+#define GLFW_GLX_LIBRARY_CONTEXT_STATE  _GLFWlibraryGLX glx;
+
+
+// GLX-specific per-context data
+//
+typedef struct _GLFWcontextGLX
+{
+    GLXContext      handle;
+    GLXWindow       window;
+} _GLFWcontextGLX;
+
+// GLX-specific global data
+//
+typedef struct _GLFWlibraryGLX
+{
+    int             major, minor;
+    int             eventBase;
+    int             errorBase;
+
+    void*           handle;
+
+    // GLX 1.3 functions
+    PFNGLXGETFBCONFIGSPROC              GetFBConfigs;
+    PFNGLXGETFBCONFIGATTRIBPROC         GetFBConfigAttrib;
+    PFNGLXGETCLIENTSTRINGPROC           GetClientString;
+    PFNGLXQUERYEXTENSIONPROC            QueryExtension;
+    PFNGLXQUERYVERSIONPROC              QueryVersion;
+    PFNGLXDESTROYCONTEXTPROC            DestroyContext;
+    PFNGLXMAKECURRENTPROC               MakeCurrent;
+    PFNGLXSWAPBUFFERSPROC               SwapBuffers;
+    PFNGLXQUERYEXTENSIONSSTRINGPROC     QueryExtensionsString;
+    PFNGLXCREATENEWCONTEXTPROC          CreateNewContext;
+    PFNGLXGETVISUALFROMFBCONFIGPROC     GetVisualFromFBConfig;
+    PFNGLXCREATEWINDOWPROC              CreateWindow;
+    PFNGLXDESTROYWINDOWPROC             DestroyWindow;
+
+    // GLX 1.4 and extension functions
+    PFNGLXGETPROCADDRESSPROC            GetProcAddress;
+    PFNGLXGETPROCADDRESSPROC            GetProcAddressARB;
+    PFNGLXSWAPINTERVALSGIPROC           SwapIntervalSGI;
+    PFNGLXSWAPINTERVALEXTPROC           SwapIntervalEXT;
+    PFNGLXSWAPINTERVALMESAPROC          SwapIntervalMESA;
+    PFNGLXCREATECONTEXTATTRIBSARBPROC   CreateContextAttribsARB;
+    GLFWbool        SGI_swap_control;
+    GLFWbool        EXT_swap_control;
+    GLFWbool        MESA_swap_control;
+    GLFWbool        ARB_multisample;
+    GLFWbool        ARB_framebuffer_sRGB;
+    GLFWbool        EXT_framebuffer_sRGB;
+    GLFWbool        ARB_create_context;
+    GLFWbool        ARB_create_context_profile;
+    GLFWbool        ARB_create_context_robustness;
+    GLFWbool        EXT_create_context_es2_profile;
+    GLFWbool        ARB_create_context_no_error;
+    GLFWbool        ARB_context_flush_control;
+} _GLFWlibraryGLX;
+
+// X11-specific per-window data
+//
+typedef struct _GLFWwindowX11
+{
+    Colormap        colormap;
+    Window          handle;
+    Window          parent;
+    XIC             ic;
+
+    GLFWbool        overrideRedirect;
+    GLFWbool        iconified;
+    GLFWbool        maximized;
+
+    // Whether the visual supports framebuffer transparency
+    GLFWbool        transparent;
+
+    // Cached position and size used to filter out duplicate events
+    int             width, height;
+    int             xpos, ypos;
+
+    // The last received cursor position, regardless of source
+    int             lastCursorPosX, lastCursorPosY;
+    // The last position the cursor was warped to by GLFW
+    int             warpCursorPosX, warpCursorPosY;
+
+    // The time of the last KeyPress event per keycode, for discarding
+    // duplicate key events generated for some keys by ibus
+    Time            keyPressTimes[256];
+} _GLFWwindowX11;
+
+// X11-specific global data
+//
+typedef struct _GLFWlibraryX11
+{
+    Display*        display;
+    int             screen;
+    Window          root;
+
+    // System content scale
+    float           contentScaleX, contentScaleY;
+    // Helper window for IPC
+    Window          helperWindowHandle;
+    // Invisible cursor for hidden cursor mode
+    Cursor          hiddenCursorHandle;
+    // Context for mapping window XIDs to _GLFWwindow pointers
+    XContext        context;
+    // XIM input method
+    XIM             im;
+    // The previous X error handler, to be restored later
+    XErrorHandler   errorHandler;
+    // Most recent error code received by X error handler
+    int             errorCode;
+    // Primary selection string (while the primary selection is owned)
+    char*           primarySelectionString;
+    // Clipboard string (while the selection is owned)
+    char*           clipboardString;
+    // Key name string
+    char            keynames[GLFW_KEY_LAST + 1][5];
+    // X11 keycode to GLFW key LUT
+    short int       keycodes[256];
+    // GLFW key to X11 keycode LUT
+    short int       scancodes[GLFW_KEY_LAST + 1];
+    // Where to place the cursor when re-enabled
+    double          restoreCursorPosX, restoreCursorPosY;
+    // The window whose disabled cursor mode is active
+    _GLFWwindow*    disabledCursorWindow;
+    int             emptyEventPipe[2];
+
+    // Window manager atoms
+    Atom            NET_SUPPORTED;
+    Atom            NET_SUPPORTING_WM_CHECK;
+    Atom            WM_PROTOCOLS;
+    Atom            WM_STATE;
+    Atom            WM_DELETE_WINDOW;
+    Atom            NET_WM_NAME;
+    Atom            NET_WM_ICON_NAME;
+    Atom            NET_WM_ICON;
+    Atom            NET_WM_PID;
+    Atom            NET_WM_PING;
+    Atom            NET_WM_WINDOW_TYPE;
+    Atom            NET_WM_WINDOW_TYPE_NORMAL;
+    Atom            NET_WM_STATE;
+    Atom            NET_WM_STATE_ABOVE;
+    Atom            NET_WM_STATE_FULLSCREEN;
+    Atom            NET_WM_STATE_MAXIMIZED_VERT;
+    Atom            NET_WM_STATE_MAXIMIZED_HORZ;
+    Atom            NET_WM_STATE_DEMANDS_ATTENTION;
+    Atom            NET_WM_BYPASS_COMPOSITOR;
+    Atom            NET_WM_FULLSCREEN_MONITORS;
+    Atom            NET_WM_WINDOW_OPACITY;
+    Atom            NET_WM_CM_Sx;
+    Atom            NET_WORKAREA;
+    Atom            NET_CURRENT_DESKTOP;
+    Atom            NET_ACTIVE_WINDOW;
+    Atom            NET_FRAME_EXTENTS;
+    Atom            NET_REQUEST_FRAME_EXTENTS;
+    Atom            MOTIF_WM_HINTS;
+
+    // Xdnd (drag and drop) atoms
+    Atom            XdndAware;
+    Atom            XdndEnter;
+    Atom            XdndPosition;
+    Atom            XdndStatus;
+    Atom            XdndActionCopy;
+    Atom            XdndDrop;
+    Atom            XdndFinished;
+    Atom            XdndSelection;
+    Atom            XdndTypeList;
+    Atom            text_uri_list;
+
+    // Selection (clipboard) atoms
+    Atom            TARGETS;
+    Atom            MULTIPLE;
+    Atom            INCR;
+    Atom            CLIPBOARD;
+    Atom            PRIMARY;
+    Atom            CLIPBOARD_MANAGER;
+    Atom            SAVE_TARGETS;
+    Atom            NULL_;
+    Atom            UTF8_STRING;
+    Atom            COMPOUND_STRING;
+    Atom            ATOM_PAIR;
+    Atom            GLFW_SELECTION;
+
+    struct {
+        void*       handle;
+        GLFWbool    utf8;
+        PFN_XAllocClassHint AllocClassHint;
+        PFN_XAllocSizeHints AllocSizeHints;
+        PFN_XAllocWMHints AllocWMHints;
+        PFN_XChangeProperty ChangeProperty;
+        PFN_XChangeWindowAttributes ChangeWindowAttributes;
+        PFN_XCheckIfEvent CheckIfEvent;
+        PFN_XCheckTypedWindowEvent CheckTypedWindowEvent;
+        PFN_XCloseDisplay CloseDisplay;
+        PFN_XCloseIM CloseIM;
+        PFN_XConvertSelection ConvertSelection;
+        PFN_XCreateColormap CreateColormap;
+        PFN_XCreateFontCursor CreateFontCursor;
+        PFN_XCreateIC CreateIC;
+        PFN_XCreateRegion CreateRegion;
+        PFN_XCreateWindow CreateWindow;
+        PFN_XDefineCursor DefineCursor;
+        PFN_XDeleteContext DeleteContext;
+        PFN_XDeleteProperty DeleteProperty;
+        PFN_XDestroyIC DestroyIC;
+        PFN_XDestroyRegion DestroyRegion;
+        PFN_XDestroyWindow DestroyWindow;
+        PFN_XDisplayKeycodes DisplayKeycodes;
+        PFN_XEventsQueued EventsQueued;
+        PFN_XFilterEvent FilterEvent;
+        PFN_XFindContext FindContext;
+        PFN_XFlush Flush;
+        PFN_XFree Free;
+        PFN_XFreeColormap FreeColormap;
+        PFN_XFreeCursor FreeCursor;
+        PFN_XFreeEventData FreeEventData;
+        PFN_XGetErrorText GetErrorText;
+        PFN_XGetEventData GetEventData;
+        PFN_XGetICValues GetICValues;
+        PFN_XGetIMValues GetIMValues;
+        PFN_XGetInputFocus GetInputFocus;
+        PFN_XGetKeyboardMapping GetKeyboardMapping;
+        PFN_XGetScreenSaver GetScreenSaver;
+        PFN_XGetSelectionOwner GetSelectionOwner;
+        PFN_XGetVisualInfo GetVisualInfo;
+        PFN_XGetWMNormalHints GetWMNormalHints;
+        PFN_XGetWindowAttributes GetWindowAttributes;
+        PFN_XGetWindowProperty GetWindowProperty;
+        PFN_XGrabPointer GrabPointer;
+        PFN_XIconifyWindow IconifyWindow;
+        PFN_XInternAtom InternAtom;
+        PFN_XLookupString LookupString;
+        PFN_XMapRaised MapRaised;
+        PFN_XMapWindow MapWindow;
+        PFN_XMoveResizeWindow MoveResizeWindow;
+        PFN_XMoveWindow MoveWindow;
+        PFN_XNextEvent NextEvent;
+        PFN_XOpenIM OpenIM;
+        PFN_XPeekEvent PeekEvent;
+        PFN_XPending Pending;
+        PFN_XQueryExtension QueryExtension;
+        PFN_XQueryPointer QueryPointer;
+        PFN_XRaiseWindow RaiseWindow;
+        PFN_XRegisterIMInstantiateCallback RegisterIMInstantiateCallback;
+        PFN_XResizeWindow ResizeWindow;
+        PFN_XResourceManagerString ResourceManagerString;
+        PFN_XSaveContext SaveContext;
+        PFN_XSelectInput SelectInput;
+        PFN_XSendEvent SendEvent;
+        PFN_XSetClassHint SetClassHint;
+        PFN_XSetErrorHandler SetErrorHandler;
+        PFN_XSetICFocus SetICFocus;
+        PFN_XSetIMValues SetIMValues;
+        PFN_XSetInputFocus SetInputFocus;
+        PFN_XSetLocaleModifiers SetLocaleModifiers;
+        PFN_XSetScreenSaver SetScreenSaver;
+        PFN_XSetSelectionOwner SetSelectionOwner;
+        PFN_XSetWMHints SetWMHints;
+        PFN_XSetWMNormalHints SetWMNormalHints;
+        PFN_XSetWMProtocols SetWMProtocols;
+        PFN_XSupportsLocale SupportsLocale;
+        PFN_XSync Sync;
+        PFN_XTranslateCoordinates TranslateCoordinates;
+        PFN_XUndefineCursor UndefineCursor;
+        PFN_XUngrabPointer UngrabPointer;
+        PFN_XUnmapWindow UnmapWindow;
+        PFN_XUnsetICFocus UnsetICFocus;
+        PFN_XVisualIDFromVisual VisualIDFromVisual;
+        PFN_XWarpPointer WarpPointer;
+        PFN_XUnregisterIMInstantiateCallback UnregisterIMInstantiateCallback;
+        PFN_Xutf8LookupString utf8LookupString;
+        PFN_Xutf8SetWMProperties utf8SetWMProperties;
+    } xlib;
+
+    struct {
+        PFN_XrmDestroyDatabase DestroyDatabase;
+        PFN_XrmGetResource GetResource;
+        PFN_XrmGetStringDatabase GetStringDatabase;
+        PFN_XrmUniqueQuark UniqueQuark;
+    } xrm;
+
+    struct {
+        GLFWbool    available;
+        void*       handle;
+        int         eventBase;
+        int         errorBase;
+        int         major;
+        int         minor;
+        GLFWbool    gammaBroken;
+        GLFWbool    monitorBroken;
+        PFN_XRRAllocGamma AllocGamma;
+        PFN_XRRFreeCrtcInfo FreeCrtcInfo;
+        PFN_XRRFreeGamma FreeGamma;
+        PFN_XRRFreeOutputInfo FreeOutputInfo;
+        PFN_XRRFreeScreenResources FreeScreenResources;
+        PFN_XRRGetCrtcGamma GetCrtcGamma;
+        PFN_XRRGetCrtcGammaSize GetCrtcGammaSize;
+        PFN_XRRGetCrtcInfo GetCrtcInfo;
+        PFN_XRRGetOutputInfo GetOutputInfo;
+        PFN_XRRGetOutputPrimary GetOutputPrimary;
+        PFN_XRRGetScreenResourcesCurrent GetScreenResourcesCurrent;
+        PFN_XRRQueryExtension QueryExtension;
+        PFN_XRRQueryVersion QueryVersion;
+        PFN_XRRSelectInput SelectInput;
+        PFN_XRRSetCrtcConfig SetCrtcConfig;
+        PFN_XRRSetCrtcGamma SetCrtcGamma;
+        PFN_XRRUpdateConfiguration UpdateConfiguration;
+    } randr;
+
+    struct {
+        GLFWbool     available;
+        GLFWbool     detectable;
+        int          majorOpcode;
+        int          eventBase;
+        int          errorBase;
+        int          major;
+        int          minor;
+        unsigned int group;
+        PFN_XkbFreeKeyboard FreeKeyboard;
+        PFN_XkbFreeNames FreeNames;
+        PFN_XkbGetMap GetMap;
+        PFN_XkbGetNames GetNames;
+        PFN_XkbGetState GetState;
+        PFN_XkbKeycodeToKeysym KeycodeToKeysym;
+        PFN_XkbQueryExtension QueryExtension;
+        PFN_XkbSelectEventDetails SelectEventDetails;
+        PFN_XkbSetDetectableAutoRepeat SetDetectableAutoRepeat;
+    } xkb;
+
+    struct {
+        int         count;
+        int         timeout;
+        int         interval;
+        int         blanking;
+        int         exposure;
+    } saver;
+
+    struct {
+        int         version;
+        Window      source;
+        Atom        format;
+    } xdnd;
+
+    struct {
+        void*       handle;
+        PFN_XcursorImageCreate ImageCreate;
+        PFN_XcursorImageDestroy ImageDestroy;
+        PFN_XcursorImageLoadCursor ImageLoadCursor;
+        PFN_XcursorGetTheme GetTheme;
+        PFN_XcursorGetDefaultSize GetDefaultSize;
+        PFN_XcursorLibraryLoadImage LibraryLoadImage;
+    } xcursor;
+
+    struct {
+        GLFWbool    available;
+        void*       handle;
+        int         major;
+        int         minor;
+        PFN_XineramaIsActive IsActive;
+        PFN_XineramaQueryExtension QueryExtension;
+        PFN_XineramaQueryScreens QueryScreens;
+    } xinerama;
+
+    struct {
+        void*       handle;
+        PFN_XGetXCBConnection GetXCBConnection;
+    } x11xcb;
+
+    struct {
+        GLFWbool    available;
+        void*       handle;
+        int         eventBase;
+        int         errorBase;
+        PFN_XF86VidModeQueryExtension QueryExtension;
+        PFN_XF86VidModeGetGammaRamp GetGammaRamp;
+        PFN_XF86VidModeSetGammaRamp SetGammaRamp;
+        PFN_XF86VidModeGetGammaRampSize GetGammaRampSize;
+    } vidmode;
+
+    struct {
+        GLFWbool    available;
+        void*       handle;
+        int         majorOpcode;
+        int         eventBase;
+        int         errorBase;
+        int         major;
+        int         minor;
+        PFN_XIQueryVersion QueryVersion;
+        PFN_XISelectEvents SelectEvents;
+    } xi;
+
+    struct {
+        GLFWbool    available;
+        void*       handle;
+        int         major;
+        int         minor;
+        int         eventBase;
+        int         errorBase;
+        PFN_XRenderQueryExtension QueryExtension;
+        PFN_XRenderQueryVersion QueryVersion;
+        PFN_XRenderFindVisualFormat FindVisualFormat;
+    } xrender;
+
+    struct {
+        GLFWbool    available;
+        void*       handle;
+        int         major;
+        int         minor;
+        int         eventBase;
+        int         errorBase;
+        PFN_XShapeQueryExtension QueryExtension;
+        PFN_XShapeCombineRegion ShapeCombineRegion;
+        PFN_XShapeQueryVersion QueryVersion;
+        PFN_XShapeCombineMask ShapeCombineMask;
+    } xshape;
+} _GLFWlibraryX11;
+
+// X11-specific per-monitor data
+//
+typedef struct _GLFWmonitorX11
+{
+    RROutput        output;
+    RRCrtc          crtc;
+    RRMode          oldMode;
+
+    // Index of corresponding Xinerama screen,
+    // for EWMH full screen window placement
+    int             index;
+} _GLFWmonitorX11;
+
+// X11-specific per-cursor data
+//
+typedef struct _GLFWcursorX11
+{
+    Cursor handle;
+} _GLFWcursorX11;
+
+
+GLFWbool _glfwConnectX11(int platformID, _GLFWplatform* platform);
+int _glfwInitX11(void);
+void _glfwTerminateX11(void);
+
+GLFWbool _glfwCreateWindowX11(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
+void _glfwDestroyWindowX11(_GLFWwindow* window);
+void _glfwSetWindowTitleX11(_GLFWwindow* window, const char* title);
+void _glfwSetWindowIconX11(_GLFWwindow* window, int count, const GLFWimage* images);
+void _glfwGetWindowPosX11(_GLFWwindow* window, int* xpos, int* ypos);
+void _glfwSetWindowPosX11(_GLFWwindow* window, int xpos, int ypos);
+void _glfwGetWindowSizeX11(_GLFWwindow* window, int* width, int* height);
+void _glfwSetWindowSizeX11(_GLFWwindow* window, int width, int height);
+void _glfwSetWindowSizeLimitsX11(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
+void _glfwSetWindowAspectRatioX11(_GLFWwindow* window, int numer, int denom);
+void _glfwGetFramebufferSizeX11(_GLFWwindow* window, int* width, int* height);
+void _glfwGetWindowFrameSizeX11(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
+void _glfwGetWindowContentScaleX11(_GLFWwindow* window, float* xscale, float* yscale);
+void _glfwIconifyWindowX11(_GLFWwindow* window);
+void _glfwRestoreWindowX11(_GLFWwindow* window);
+void _glfwMaximizeWindowX11(_GLFWwindow* window);
+void _glfwShowWindowX11(_GLFWwindow* window);
+void _glfwHideWindowX11(_GLFWwindow* window);
+void _glfwRequestWindowAttentionX11(_GLFWwindow* window);
+void _glfwFocusWindowX11(_GLFWwindow* window);
+void _glfwSetWindowMonitorX11(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
+GLFWbool _glfwWindowFocusedX11(_GLFWwindow* window);
+GLFWbool _glfwWindowIconifiedX11(_GLFWwindow* window);
+GLFWbool _glfwWindowVisibleX11(_GLFWwindow* window);
+GLFWbool _glfwWindowMaximizedX11(_GLFWwindow* window);
+GLFWbool _glfwWindowHoveredX11(_GLFWwindow* window);
+GLFWbool _glfwFramebufferTransparentX11(_GLFWwindow* window);
+void _glfwSetWindowResizableX11(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowDecoratedX11(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowFloatingX11(_GLFWwindow* window, GLFWbool enabled);
+float _glfwGetWindowOpacityX11(_GLFWwindow* window);
+void _glfwSetWindowOpacityX11(_GLFWwindow* window, float opacity);
+void _glfwSetWindowMousePassthroughX11(_GLFWwindow* window, GLFWbool enabled);
+
+void _glfwSetRawMouseMotionX11(_GLFWwindow *window, GLFWbool enabled);
+GLFWbool _glfwRawMouseMotionSupportedX11(void);
+
+void _glfwPollEventsX11(void);
+void _glfwWaitEventsX11(void);
+void _glfwWaitEventsTimeoutX11(double timeout);
+void _glfwPostEmptyEventX11(void);
+
+void _glfwGetCursorPosX11(_GLFWwindow* window, double* xpos, double* ypos);
+void _glfwSetCursorPosX11(_GLFWwindow* window, double xpos, double ypos);
+void _glfwSetCursorModeX11(_GLFWwindow* window, int mode);
+const char* _glfwGetScancodeNameX11(int scancode);
+int _glfwGetKeyScancodeX11(int key);
+GLFWbool _glfwCreateCursorX11(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot);
+GLFWbool _glfwCreateStandardCursorX11(_GLFWcursor* cursor, int shape);
+void _glfwDestroyCursorX11(_GLFWcursor* cursor);
+void _glfwSetCursorX11(_GLFWwindow* window, _GLFWcursor* cursor);
+void _glfwSetClipboardStringX11(const char* string);
+const char* _glfwGetClipboardStringX11(void);
+
+EGLenum _glfwGetEGLPlatformX11(EGLint** attribs);
+EGLNativeDisplayType _glfwGetEGLNativeDisplayX11(void);
+EGLNativeWindowType _glfwGetEGLNativeWindowX11(_GLFWwindow* window);
+
+void _glfwGetRequiredInstanceExtensionsX11(char** extensions);
+GLFWbool _glfwGetPhysicalDevicePresentationSupportX11(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
+VkResult _glfwCreateWindowSurfaceX11(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
+
+void _glfwFreeMonitorX11(_GLFWmonitor* monitor);
+void _glfwGetMonitorPosX11(_GLFWmonitor* monitor, int* xpos, int* ypos);
+void _glfwGetMonitorContentScaleX11(_GLFWmonitor* monitor, float* xscale, float* yscale);
+void _glfwGetMonitorWorkareaX11(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
+GLFWvidmode* _glfwGetVideoModesX11(_GLFWmonitor* monitor, int* count);
+GLFWbool _glfwGetVideoModeX11(_GLFWmonitor* monitor, GLFWvidmode* mode);
+GLFWbool _glfwGetGammaRampX11(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
+void _glfwSetGammaRampX11(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
+
+void _glfwPollMonitorsX11(void);
+void _glfwSetVideoModeX11(_GLFWmonitor* monitor, const GLFWvidmode* desired);
+void _glfwRestoreVideoModeX11(_GLFWmonitor* monitor);
+
+Cursor _glfwCreateNativeCursorX11(const GLFWimage* image, int xhot, int yhot);
+
+unsigned long _glfwGetWindowPropertyX11(Window window,
+                                        Atom property,
+                                        Atom type,
+                                        unsigned char** value);
+GLFWbool _glfwIsVisualTransparentX11(Visual* visual);
+
+void _glfwGrabErrorHandlerX11(void);
+void _glfwReleaseErrorHandlerX11(void);
+void _glfwInputErrorX11(int error, const char* message);
+
+void _glfwPushSelectionToManagerX11(void);
+void _glfwCreateInputContextX11(_GLFWwindow* window);
+
+GLFWbool _glfwInitGLX(void);
+void _glfwTerminateGLX(void);
+GLFWbool _glfwCreateContextGLX(_GLFWwindow* window,
+                               const _GLFWctxconfig* ctxconfig,
+                               const _GLFWfbconfig* fbconfig);
+void _glfwDestroyContextGLX(_GLFWwindow* window);
+GLFWbool _glfwChooseVisualGLX(const _GLFWwndconfig* wndconfig,
+                              const _GLFWctxconfig* ctxconfig,
+                              const _GLFWfbconfig* fbconfig,
+                              Visual** visual, int* depth);
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/x11_window.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/x11_window.c
new file mode 100644
index 000000000000..322349f08bd0
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/x11_window.c
@@ -0,0 +1,3361 @@
+//========================================================================
+// GLFW 3.5 X11 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_X11)
+
+#include <X11/cursorfont.h>
+#include <X11/Xmd.h>
+
+#include <poll.h>
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <errno.h>
+#include <assert.h>
+
+// Action for EWMH client messages
+#define _NET_WM_STATE_REMOVE        0
+#define _NET_WM_STATE_ADD           1
+#define _NET_WM_STATE_TOGGLE        2
+
+// Additional mouse button names for XButtonEvent
+#define Button6            6
+#define Button7            7
+
+// Motif WM hints flags
+#define MWM_HINTS_DECORATIONS   2
+#define MWM_DECOR_ALL           1
+
+#define _GLFW_XDND_VERSION 5
+
+// Wait for event data to arrive on the X11 display socket
+// This avoids blocking other threads via the per-display Xlib lock that also
+// covers GLX functions
+//
+static GLFWbool waitForX11Event(double* timeout)
+{
+    struct pollfd fd = { ConnectionNumber(_glfw.x11.display), POLLIN };
+
+    while (!XPending(_glfw.x11.display))
+    {
+        if (!_glfwPollPOSIX(&fd, 1, timeout))
+            return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+// Wait for event data to arrive on any event file descriptor
+// This avoids blocking other threads via the per-display Xlib lock that also
+// covers GLX functions
+//
+static GLFWbool waitForAnyEvent(double* timeout)
+{
+    enum { XLIB_FD, PIPE_FD, INOTIFY_FD };
+    struct pollfd fds[] =
+    {
+        [XLIB_FD] = { ConnectionNumber(_glfw.x11.display), POLLIN },
+        [PIPE_FD] = { _glfw.x11.emptyEventPipe[0], POLLIN },
+        [INOTIFY_FD] = { -1, POLLIN }
+    };
+
+#if defined(GLFW_BUILD_LINUX_JOYSTICK)
+    if (_glfw.joysticksInitialized)
+        fds[INOTIFY_FD].fd = _glfw.linjs.inotify;
+#endif
+
+    while (!XPending(_glfw.x11.display))
+    {
+        if (!_glfwPollPOSIX(fds, sizeof(fds) / sizeof(fds[0]), timeout))
+            return GLFW_FALSE;
+
+        for (int i = 1; i < sizeof(fds) / sizeof(fds[0]); i++)
+        {
+            if (fds[i].revents & POLLIN)
+                return GLFW_TRUE;
+        }
+    }
+
+    return GLFW_TRUE;
+}
+
+// Writes a byte to the empty event pipe
+//
+static void writeEmptyEvent(void)
+{
+    for (;;)
+    {
+        const char byte = 0;
+        const ssize_t result = write(_glfw.x11.emptyEventPipe[1], &byte, 1);
+        if (result == 1 || (result == -1 && errno != EINTR))
+            break;
+    }
+}
+
+// Drains available data from the empty event pipe
+//
+static void drainEmptyEvents(void)
+{
+    for (;;)
+    {
+        char dummy[64];
+        const ssize_t result = read(_glfw.x11.emptyEventPipe[0], dummy, sizeof(dummy));
+        if (result == -1 && errno != EINTR)
+            break;
+    }
+}
+
+// Waits until a VisibilityNotify event arrives for the specified window or the
+// timeout period elapses (ICCCM section 4.2.2)
+//
+static GLFWbool waitForVisibilityNotify(_GLFWwindow* window)
+{
+    XEvent dummy;
+    double timeout = 0.1;
+
+    while (!XCheckTypedWindowEvent(_glfw.x11.display,
+                                   window->x11.handle,
+                                   VisibilityNotify,
+                                   &dummy))
+    {
+        if (!waitForX11Event(&timeout))
+            return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+// Returns whether the window is iconified
+//
+static int getWindowState(_GLFWwindow* window)
+{
+    int result = WithdrawnState;
+    struct {
+        CARD32 state;
+        Window icon;
+    } *state = NULL;
+
+    if (_glfwGetWindowPropertyX11(window->x11.handle,
+                                  _glfw.x11.WM_STATE,
+                                  _glfw.x11.WM_STATE,
+                                  (unsigned char**) &state) >= 2)
+    {
+        result = state->state;
+    }
+
+    if (state)
+        XFree(state);
+
+    return result;
+}
+
+// Returns whether the event is a selection event
+//
+static Bool isSelectionEvent(Display* display, XEvent* event, XPointer pointer)
+{
+    if (event->xany.window != _glfw.x11.helperWindowHandle)
+        return False;
+
+    return event->type == SelectionRequest ||
+           event->type == SelectionNotify ||
+           event->type == SelectionClear;
+}
+
+// Returns whether it is a _NET_FRAME_EXTENTS event for the specified window
+//
+static Bool isFrameExtentsEvent(Display* display, XEvent* event, XPointer pointer)
+{
+    _GLFWwindow* window = (_GLFWwindow*) pointer;
+    return event->type == PropertyNotify &&
+           event->xproperty.state == PropertyNewValue &&
+           event->xproperty.window == window->x11.handle &&
+           event->xproperty.atom == _glfw.x11.NET_FRAME_EXTENTS;
+}
+
+// Returns whether it is a property event for the specified selection transfer
+//
+static Bool isSelPropNewValueNotify(Display* display, XEvent* event, XPointer pointer)
+{
+    XEvent* notification = (XEvent*) pointer;
+    return event->type == PropertyNotify &&
+           event->xproperty.state == PropertyNewValue &&
+           event->xproperty.window == notification->xselection.requestor &&
+           event->xproperty.atom == notification->xselection.property;
+}
+
+// Translates an X event modifier state mask
+//
+static int translateState(int state)
+{
+    int mods = 0;
+
+    if (state & ShiftMask)
+        mods |= GLFW_MOD_SHIFT;
+    if (state & ControlMask)
+        mods |= GLFW_MOD_CONTROL;
+    if (state & Mod1Mask)
+        mods |= GLFW_MOD_ALT;
+    if (state & Mod4Mask)
+        mods |= GLFW_MOD_SUPER;
+    if (state & LockMask)
+        mods |= GLFW_MOD_CAPS_LOCK;
+    if (state & Mod2Mask)
+        mods |= GLFW_MOD_NUM_LOCK;
+
+    return mods;
+}
+
+// Translates an X11 key code to a GLFW key token
+//
+static int translateKey(int scancode)
+{
+    // Use the pre-filled LUT (see createKeyTables() in x11_init.c)
+    if (scancode < 0 || scancode > 255)
+        return GLFW_KEY_UNKNOWN;
+
+    return _glfw.x11.keycodes[scancode];
+}
+
+// Sends an EWMH or ICCCM event to the window manager
+//
+static void sendEventToWM(_GLFWwindow* window, Atom type,
+                          long a, long b, long c, long d, long e)
+{
+    XEvent event = { ClientMessage };
+    event.xclient.window = window->x11.handle;
+    event.xclient.format = 32; // Data is 32-bit longs
+    event.xclient.message_type = type;
+    event.xclient.data.l[0] = a;
+    event.xclient.data.l[1] = b;
+    event.xclient.data.l[2] = c;
+    event.xclient.data.l[3] = d;
+    event.xclient.data.l[4] = e;
+
+    XSendEvent(_glfw.x11.display, _glfw.x11.root,
+               False,
+               SubstructureNotifyMask | SubstructureRedirectMask,
+               &event);
+}
+
+// Updates the normal hints according to the window settings
+//
+static void updateNormalHints(_GLFWwindow* window, int width, int height)
+{
+    XSizeHints* hints = XAllocSizeHints();
+
+    long supplied;
+    XGetWMNormalHints(_glfw.x11.display, window->x11.handle, hints, &supplied);
+
+    hints->flags &= ~(PMinSize | PMaxSize | PAspect);
+
+    if (!window->monitor)
+    {
+        if (window->resizable)
+        {
+            if (window->minwidth != GLFW_DONT_CARE &&
+                window->minheight != GLFW_DONT_CARE)
+            {
+                hints->flags |= PMinSize;
+                hints->min_width = window->minwidth;
+                hints->min_height = window->minheight;
+            }
+
+            if (window->maxwidth != GLFW_DONT_CARE &&
+                window->maxheight != GLFW_DONT_CARE)
+            {
+                hints->flags |= PMaxSize;
+                hints->max_width = window->maxwidth;
+                hints->max_height = window->maxheight;
+            }
+
+            if (window->numer != GLFW_DONT_CARE &&
+                window->denom != GLFW_DONT_CARE)
+            {
+                hints->flags |= PAspect;
+                hints->min_aspect.x = hints->max_aspect.x = window->numer;
+                hints->min_aspect.y = hints->max_aspect.y = window->denom;
+            }
+        }
+        else
+        {
+            hints->flags |= (PMinSize | PMaxSize);
+            hints->min_width  = hints->max_width  = width;
+            hints->min_height = hints->max_height = height;
+        }
+    }
+
+    XSetWMNormalHints(_glfw.x11.display, window->x11.handle, hints);
+    XFree(hints);
+}
+
+// Updates the full screen status of the window
+//
+static void updateWindowMode(_GLFWwindow* window)
+{
+    if (window->monitor)
+    {
+        if (_glfw.x11.xinerama.available &&
+            _glfw.x11.NET_WM_FULLSCREEN_MONITORS)
+        {
+            sendEventToWM(window,
+                          _glfw.x11.NET_WM_FULLSCREEN_MONITORS,
+                          window->monitor->x11.index,
+                          window->monitor->x11.index,
+                          window->monitor->x11.index,
+                          window->monitor->x11.index,
+                          0);
+        }
+
+        if (_glfw.x11.NET_WM_STATE && _glfw.x11.NET_WM_STATE_FULLSCREEN)
+        {
+            sendEventToWM(window,
+                          _glfw.x11.NET_WM_STATE,
+                          _NET_WM_STATE_ADD,
+                          _glfw.x11.NET_WM_STATE_FULLSCREEN,
+                          0, 1, 0);
+        }
+        else
+        {
+            // This is the butcher's way of removing window decorations
+            // Setting the override-redirect attribute on a window makes the
+            // window manager ignore the window completely (ICCCM, section 4)
+            // The good thing is that this makes undecorated full screen windows
+            // easy to do; the bad thing is that we have to do everything
+            // manually and some things (like iconify/restore) won't work at
+            // all, as those are tasks usually performed by the window manager
+
+            XSetWindowAttributes attributes;
+            attributes.override_redirect = True;
+            XChangeWindowAttributes(_glfw.x11.display,
+                                    window->x11.handle,
+                                    CWOverrideRedirect,
+                                    &attributes);
+
+            window->x11.overrideRedirect = GLFW_TRUE;
+        }
+
+        // Enable compositor bypass
+        if (!window->x11.transparent)
+        {
+            const unsigned long value = 1;
+
+            XChangeProperty(_glfw.x11.display,  window->x11.handle,
+                            _glfw.x11.NET_WM_BYPASS_COMPOSITOR, XA_CARDINAL, 32,
+                            PropModeReplace, (unsigned char*) &value, 1);
+        }
+    }
+    else
+    {
+        if (_glfw.x11.xinerama.available &&
+            _glfw.x11.NET_WM_FULLSCREEN_MONITORS)
+        {
+            XDeleteProperty(_glfw.x11.display, window->x11.handle,
+                            _glfw.x11.NET_WM_FULLSCREEN_MONITORS);
+        }
+
+        if (_glfw.x11.NET_WM_STATE && _glfw.x11.NET_WM_STATE_FULLSCREEN)
+        {
+            sendEventToWM(window,
+                          _glfw.x11.NET_WM_STATE,
+                          _NET_WM_STATE_REMOVE,
+                          _glfw.x11.NET_WM_STATE_FULLSCREEN,
+                          0, 1, 0);
+        }
+        else
+        {
+            XSetWindowAttributes attributes;
+            attributes.override_redirect = False;
+            XChangeWindowAttributes(_glfw.x11.display,
+                                    window->x11.handle,
+                                    CWOverrideRedirect,
+                                    &attributes);
+
+            window->x11.overrideRedirect = GLFW_FALSE;
+        }
+
+        // Disable compositor bypass
+        if (!window->x11.transparent)
+        {
+            XDeleteProperty(_glfw.x11.display, window->x11.handle,
+                            _glfw.x11.NET_WM_BYPASS_COMPOSITOR);
+        }
+    }
+}
+
+// Decode a Unicode code point from a UTF-8 stream
+// Based on cutef8 by Jeff Bezanson (Public Domain)
+//
+static uint32_t decodeUTF8(const char** s)
+{
+    uint32_t codepoint = 0, count = 0;
+    static const uint32_t offsets[] =
+    {
+        0x00000000u, 0x00003080u, 0x000e2080u,
+        0x03c82080u, 0xfa082080u, 0x82082080u
+    };
+
+    do
+    {
+        codepoint = (codepoint << 6) + (unsigned char) **s;
+        (*s)++;
+        count++;
+    } while ((**s & 0xc0) == 0x80);
+
+    assert(count <= 6);
+    return codepoint - offsets[count - 1];
+}
+
+// Convert the specified Latin-1 string to UTF-8
+//
+static char* convertLatin1toUTF8(const char* source)
+{
+    size_t size = 1;
+    const char* sp;
+
+    for (sp = source;  *sp;  sp++)
+        size += (*sp & 0x80) ? 2 : 1;
+
+    char* target = _glfw_calloc(size, 1);
+    char* tp = target;
+
+    for (sp = source;  *sp;  sp++)
+        tp += _glfwEncodeUTF8(tp, *sp);
+
+    return target;
+}
+
+// Updates the cursor image according to its cursor mode
+//
+static void updateCursorImage(_GLFWwindow* window)
+{
+    if (window->cursorMode == GLFW_CURSOR_NORMAL ||
+        window->cursorMode == GLFW_CURSOR_CAPTURED)
+    {
+        if (window->cursor)
+        {
+            XDefineCursor(_glfw.x11.display, window->x11.handle,
+                          window->cursor->x11.handle);
+        }
+        else
+            XUndefineCursor(_glfw.x11.display, window->x11.handle);
+    }
+    else
+    {
+        XDefineCursor(_glfw.x11.display, window->x11.handle,
+                      _glfw.x11.hiddenCursorHandle);
+    }
+}
+
+// Grabs the cursor and confines it to the window
+//
+static void captureCursor(_GLFWwindow* window)
+{
+    XGrabPointer(_glfw.x11.display, window->x11.handle, True,
+                 ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
+                 GrabModeAsync, GrabModeAsync,
+                 window->x11.handle,
+                 None,
+                 CurrentTime);
+}
+
+// Ungrabs the cursor
+//
+static void releaseCursor(void)
+{
+    XUngrabPointer(_glfw.x11.display, CurrentTime);
+}
+
+// Enable XI2 raw mouse motion events
+//
+static void enableRawMouseMotion(_GLFWwindow* window)
+{
+    XIEventMask em;
+    unsigned char mask[XIMaskLen(XI_RawMotion)] = { 0 };
+
+    em.deviceid = XIAllMasterDevices;
+    em.mask_len = sizeof(mask);
+    em.mask = mask;
+    XISetMask(mask, XI_RawMotion);
+
+    XISelectEvents(_glfw.x11.display, _glfw.x11.root, &em, 1);
+}
+
+// Disable XI2 raw mouse motion events
+//
+static void disableRawMouseMotion(_GLFWwindow* window)
+{
+    XIEventMask em;
+    unsigned char mask[] = { 0 };
+
+    em.deviceid = XIAllMasterDevices;
+    em.mask_len = sizeof(mask);
+    em.mask = mask;
+
+    XISelectEvents(_glfw.x11.display, _glfw.x11.root, &em, 1);
+}
+
+// Apply disabled cursor mode to a focused window
+//
+static void disableCursor(_GLFWwindow* window)
+{
+    if (window->rawMouseMotion)
+        enableRawMouseMotion(window);
+
+    _glfw.x11.disabledCursorWindow = window;
+    _glfwGetCursorPosX11(window,
+                         &_glfw.x11.restoreCursorPosX,
+                         &_glfw.x11.restoreCursorPosY);
+    updateCursorImage(window);
+    _glfwCenterCursorInContentArea(window);
+    captureCursor(window);
+}
+
+// Exit disabled cursor mode for the specified window
+//
+static void enableCursor(_GLFWwindow* window)
+{
+    if (window->rawMouseMotion)
+        disableRawMouseMotion(window);
+
+    _glfw.x11.disabledCursorWindow = NULL;
+    releaseCursor();
+    _glfwSetCursorPosX11(window,
+                         _glfw.x11.restoreCursorPosX,
+                         _glfw.x11.restoreCursorPosY);
+    updateCursorImage(window);
+}
+
+// Clear its handle when the input context has been destroyed
+//
+static void inputContextDestroyCallback(XIC ic, XPointer clientData, XPointer callData)
+{
+    _GLFWwindow* window = (_GLFWwindow*) clientData;
+    window->x11.ic = NULL;
+}
+
+// Create the X11 window (and its colormap)
+//
+static GLFWbool createNativeWindow(_GLFWwindow* window,
+                                   const _GLFWwndconfig* wndconfig,
+                                   Visual* visual, int depth)
+{
+    int width = wndconfig->width;
+    int height = wndconfig->height;
+
+    if (wndconfig->scaleToMonitor)
+    {
+        width *= _glfw.x11.contentScaleX;
+        height *= _glfw.x11.contentScaleY;
+    }
+
+    int xpos = 0, ypos = 0;
+
+    if (wndconfig->xpos != GLFW_ANY_POSITION && wndconfig->ypos != GLFW_ANY_POSITION)
+    {
+        xpos = wndconfig->xpos;
+        ypos = wndconfig->ypos;
+    }
+
+    // Create a colormap based on the visual used by the current context
+    window->x11.colormap = XCreateColormap(_glfw.x11.display,
+                                           _glfw.x11.root,
+                                           visual,
+                                           AllocNone);
+
+    window->x11.transparent = _glfwIsVisualTransparentX11(visual);
+
+    XSetWindowAttributes wa = { 0 };
+    wa.colormap = window->x11.colormap;
+    wa.event_mask = StructureNotifyMask | KeyPressMask | KeyReleaseMask |
+                    PointerMotionMask | ButtonPressMask | ButtonReleaseMask |
+                    ExposureMask | FocusChangeMask | VisibilityChangeMask |
+                    EnterWindowMask | LeaveWindowMask | PropertyChangeMask;
+
+    _glfwGrabErrorHandlerX11();
+
+    window->x11.parent = _glfw.x11.root;
+    window->x11.handle = XCreateWindow(_glfw.x11.display,
+                                       _glfw.x11.root,
+                                       xpos, ypos,
+                                       width, height,
+                                       0,      // Border width
+                                       depth,  // Color depth
+                                       InputOutput,
+                                       visual,
+                                       CWBorderPixel | CWColormap | CWEventMask,
+                                       &wa);
+
+    _glfwReleaseErrorHandlerX11();
+
+    if (!window->x11.handle)
+    {
+        _glfwInputErrorX11(GLFW_PLATFORM_ERROR,
+                           "X11: Failed to create window");
+        return GLFW_FALSE;
+    }
+
+    XSaveContext(_glfw.x11.display,
+                 window->x11.handle,
+                 _glfw.x11.context,
+                 (XPointer) window);
+
+    if (!wndconfig->decorated)
+        _glfwSetWindowDecoratedX11(window, GLFW_FALSE);
+
+    if (_glfw.x11.NET_WM_STATE && !window->monitor)
+    {
+        Atom states[3];
+        int count = 0;
+
+        if (wndconfig->floating)
+        {
+            if (_glfw.x11.NET_WM_STATE_ABOVE)
+                states[count++] = _glfw.x11.NET_WM_STATE_ABOVE;
+        }
+
+        if (wndconfig->maximized)
+        {
+            if (_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT &&
+                _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ)
+            {
+                states[count++] = _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT;
+                states[count++] = _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ;
+                window->x11.maximized = GLFW_TRUE;
+            }
+        }
+
+        if (count)
+        {
+            XChangeProperty(_glfw.x11.display, window->x11.handle,
+                            _glfw.x11.NET_WM_STATE, XA_ATOM, 32,
+                            PropModeReplace, (unsigned char*) states, count);
+        }
+    }
+
+    // Declare the WM protocols supported by GLFW
+    {
+        Atom protocols[] =
+        {
+            _glfw.x11.WM_DELETE_WINDOW,
+            _glfw.x11.NET_WM_PING
+        };
+
+        XSetWMProtocols(_glfw.x11.display, window->x11.handle,
+                        protocols, sizeof(protocols) / sizeof(Atom));
+    }
+
+    // Declare our PID
+    {
+        const long pid = getpid();
+
+        XChangeProperty(_glfw.x11.display,  window->x11.handle,
+                        _glfw.x11.NET_WM_PID, XA_CARDINAL, 32,
+                        PropModeReplace,
+                        (unsigned char*) &pid, 1);
+    }
+
+    if (_glfw.x11.NET_WM_WINDOW_TYPE && _glfw.x11.NET_WM_WINDOW_TYPE_NORMAL)
+    {
+        Atom type = _glfw.x11.NET_WM_WINDOW_TYPE_NORMAL;
+        XChangeProperty(_glfw.x11.display,  window->x11.handle,
+                        _glfw.x11.NET_WM_WINDOW_TYPE, XA_ATOM, 32,
+                        PropModeReplace, (unsigned char*) &type, 1);
+    }
+
+    // Set ICCCM WM_HINTS property
+    {
+        XWMHints* hints = XAllocWMHints();
+        if (!hints)
+        {
+            _glfwInputError(GLFW_OUT_OF_MEMORY,
+                            "X11: Failed to allocate WM hints");
+            return GLFW_FALSE;
+        }
+
+        hints->flags = StateHint;
+        hints->initial_state = NormalState;
+
+        XSetWMHints(_glfw.x11.display, window->x11.handle, hints);
+        XFree(hints);
+    }
+
+    // Set ICCCM WM_NORMAL_HINTS property
+    {
+        XSizeHints* hints = XAllocSizeHints();
+        if (!hints)
+        {
+            _glfwInputError(GLFW_OUT_OF_MEMORY, "X11: Failed to allocate size hints");
+            return GLFW_FALSE;
+        }
+
+        if (!wndconfig->resizable)
+        {
+            hints->flags |= (PMinSize | PMaxSize);
+            hints->min_width  = hints->max_width  = width;
+            hints->min_height = hints->max_height = height;
+        }
+
+        // HACK: Explicitly setting PPosition to any value causes some WMs, notably
+        //       Compiz and Metacity, to honor the position of unmapped windows
+        if (wndconfig->xpos != GLFW_ANY_POSITION && wndconfig->ypos != GLFW_ANY_POSITION)
+        {
+            hints->flags |= PPosition;
+            hints->x = 0;
+            hints->y = 0;
+        }
+
+        hints->flags |= PWinGravity;
+        hints->win_gravity = StaticGravity;
+
+        XSetWMNormalHints(_glfw.x11.display, window->x11.handle, hints);
+        XFree(hints);
+    }
+
+    // Set ICCCM WM_CLASS property
+    {
+        XClassHint* hint = XAllocClassHint();
+
+        if (strlen(wndconfig->x11.instanceName) &&
+            strlen(wndconfig->x11.className))
+        {
+            hint->res_name = (char*) wndconfig->x11.instanceName;
+            hint->res_class = (char*) wndconfig->x11.className;
+        }
+        else
+        {
+            const char* resourceName = getenv("RESOURCE_NAME");
+            if (resourceName && strlen(resourceName))
+                hint->res_name = (char*) resourceName;
+            else if (strlen(wndconfig->title))
+                hint->res_name = (char*) wndconfig->title;
+            else
+                hint->res_name = (char*) "glfw-application";
+
+            if (strlen(wndconfig->title))
+                hint->res_class = (char*) wndconfig->title;
+            else
+                hint->res_class = (char*) "GLFW-Application";
+        }
+
+        XSetClassHint(_glfw.x11.display, window->x11.handle, hint);
+        XFree(hint);
+    }
+
+    // Announce support for Xdnd (drag and drop)
+    {
+        const Atom version = _GLFW_XDND_VERSION;
+        XChangeProperty(_glfw.x11.display, window->x11.handle,
+                        _glfw.x11.XdndAware, XA_ATOM, 32,
+                        PropModeReplace, (unsigned char*) &version, 1);
+    }
+
+    if (_glfw.x11.im)
+        _glfwCreateInputContextX11(window);
+
+    _glfwSetWindowTitleX11(window, wndconfig->title);
+    _glfwGetWindowPosX11(window, &window->x11.xpos, &window->x11.ypos);
+    _glfwGetWindowSizeX11(window, &window->x11.width, &window->x11.height);
+
+    return GLFW_TRUE;
+}
+
+// Set the specified property to the selection converted to the requested target
+//
+static Atom writeTargetToProperty(const XSelectionRequestEvent* request)
+{
+    char* selectionString = NULL;
+    const Atom formats[] = { _glfw.x11.UTF8_STRING, XA_STRING };
+    const int formatCount = sizeof(formats) / sizeof(formats[0]);
+
+    if (request->selection == _glfw.x11.PRIMARY)
+        selectionString = _glfw.x11.primarySelectionString;
+    else
+        selectionString = _glfw.x11.clipboardString;
+
+    if (request->property == None)
+    {
+        // The requester is a legacy client (ICCCM section 2.2)
+        // We don't support legacy clients, so fail here
+        return None;
+    }
+
+    if (request->target == _glfw.x11.TARGETS)
+    {
+        // The list of supported targets was requested
+
+        const Atom targets[] = { _glfw.x11.TARGETS,
+                                 _glfw.x11.MULTIPLE,
+                                 _glfw.x11.UTF8_STRING,
+                                 XA_STRING };
+
+        XChangeProperty(_glfw.x11.display,
+                        request->requestor,
+                        request->property,
+                        XA_ATOM,
+                        32,
+                        PropModeReplace,
+                        (unsigned char*) targets,
+                        sizeof(targets) / sizeof(targets[0]));
+
+        return request->property;
+    }
+
+    if (request->target == _glfw.x11.MULTIPLE)
+    {
+        // Multiple conversions were requested
+
+        Atom* targets;
+        const unsigned long count =
+            _glfwGetWindowPropertyX11(request->requestor,
+                                      request->property,
+                                      _glfw.x11.ATOM_PAIR,
+                                      (unsigned char**) &targets);
+
+        for (unsigned long i = 0;  i < count;  i += 2)
+        {
+            int j;
+
+            for (j = 0;  j < formatCount;  j++)
+            {
+                if (targets[i] == formats[j])
+                    break;
+            }
+
+            if (j < formatCount)
+            {
+                XChangeProperty(_glfw.x11.display,
+                                request->requestor,
+                                targets[i + 1],
+                                targets[i],
+                                8,
+                                PropModeReplace,
+                                (unsigned char *) selectionString,
+                                strlen(selectionString));
+            }
+            else
+                targets[i + 1] = None;
+        }
+
+        XChangeProperty(_glfw.x11.display,
+                        request->requestor,
+                        request->property,
+                        _glfw.x11.ATOM_PAIR,
+                        32,
+                        PropModeReplace,
+                        (unsigned char*) targets,
+                        count);
+
+        XFree(targets);
+
+        return request->property;
+    }
+
+    if (request->target == _glfw.x11.SAVE_TARGETS)
+    {
+        // The request is a check whether we support SAVE_TARGETS
+        // It should be handled as a no-op side effect target
+
+        XChangeProperty(_glfw.x11.display,
+                        request->requestor,
+                        request->property,
+                        _glfw.x11.NULL_,
+                        32,
+                        PropModeReplace,
+                        NULL,
+                        0);
+
+        return request->property;
+    }
+
+    // Conversion to a data target was requested
+
+    for (int i = 0;  i < formatCount;  i++)
+    {
+        if (request->target == formats[i])
+        {
+            // The requested target is one we support
+
+            XChangeProperty(_glfw.x11.display,
+                            request->requestor,
+                            request->property,
+                            request->target,
+                            8,
+                            PropModeReplace,
+                            (unsigned char *) selectionString,
+                            strlen(selectionString));
+
+            return request->property;
+        }
+    }
+
+    // The requested target is not supported
+
+    return None;
+}
+
+static void handleSelectionRequest(XEvent* event)
+{
+    const XSelectionRequestEvent* request = &event->xselectionrequest;
+
+    XEvent reply = { SelectionNotify };
+    reply.xselection.property = writeTargetToProperty(request);
+    reply.xselection.display = request->display;
+    reply.xselection.requestor = request->requestor;
+    reply.xselection.selection = request->selection;
+    reply.xselection.target = request->target;
+    reply.xselection.time = request->time;
+
+    XSendEvent(_glfw.x11.display, request->requestor, False, 0, &reply);
+}
+
+static const char* getSelectionString(Atom selection)
+{
+    char** selectionString = NULL;
+    const Atom targets[] = { _glfw.x11.UTF8_STRING, XA_STRING };
+    const size_t targetCount = sizeof(targets) / sizeof(targets[0]);
+
+    if (selection == _glfw.x11.PRIMARY)
+        selectionString = &_glfw.x11.primarySelectionString;
+    else
+        selectionString = &_glfw.x11.clipboardString;
+
+    if (XGetSelectionOwner(_glfw.x11.display, selection) ==
+        _glfw.x11.helperWindowHandle)
+    {
+        // Instead of doing a large number of X round-trips just to put this
+        // string into a window property and then read it back, just return it
+        return *selectionString;
+    }
+
+    _glfw_free(*selectionString);
+    *selectionString = NULL;
+
+    for (size_t i = 0;  i < targetCount;  i++)
+    {
+        char* data;
+        Atom actualType;
+        int actualFormat;
+        unsigned long itemCount, bytesAfter;
+        XEvent notification, dummy;
+
+        XConvertSelection(_glfw.x11.display,
+                          selection,
+                          targets[i],
+                          _glfw.x11.GLFW_SELECTION,
+                          _glfw.x11.helperWindowHandle,
+                          CurrentTime);
+
+        while (!XCheckTypedWindowEvent(_glfw.x11.display,
+                                       _glfw.x11.helperWindowHandle,
+                                       SelectionNotify,
+                                       &notification))
+        {
+            waitForX11Event(NULL);
+        }
+
+        if (notification.xselection.property == None)
+            continue;
+
+        XCheckIfEvent(_glfw.x11.display,
+                      &dummy,
+                      isSelPropNewValueNotify,
+                      (XPointer) &notification);
+
+        XGetWindowProperty(_glfw.x11.display,
+                           notification.xselection.requestor,
+                           notification.xselection.property,
+                           0,
+                           LONG_MAX,
+                           True,
+                           AnyPropertyType,
+                           &actualType,
+                           &actualFormat,
+                           &itemCount,
+                           &bytesAfter,
+                           (unsigned char**) &data);
+
+        if (actualType == _glfw.x11.INCR)
+        {
+            size_t size = 1;
+            char* string = NULL;
+
+            for (;;)
+            {
+                while (!XCheckIfEvent(_glfw.x11.display,
+                                      &dummy,
+                                      isSelPropNewValueNotify,
+                                      (XPointer) &notification))
+                {
+                    waitForX11Event(NULL);
+                }
+
+                XFree(data);
+                XGetWindowProperty(_glfw.x11.display,
+                                   notification.xselection.requestor,
+                                   notification.xselection.property,
+                                   0,
+                                   LONG_MAX,
+                                   True,
+                                   AnyPropertyType,
+                                   &actualType,
+                                   &actualFormat,
+                                   &itemCount,
+                                   &bytesAfter,
+                                   (unsigned char**) &data);
+
+                if (itemCount)
+                {
+                    size += itemCount;
+                    string = _glfw_realloc(string, size);
+                    string[size - itemCount - 1] = '\0';
+                    strcat(string, data);
+                }
+
+                if (!itemCount)
+                {
+                    if (string)
+                    {
+                        if (targets[i] == XA_STRING)
+                        {
+                            *selectionString = convertLatin1toUTF8(string);
+                            _glfw_free(string);
+                        }
+                        else
+                            *selectionString = string;
+                    }
+
+                    break;
+                }
+            }
+        }
+        else if (actualType == targets[i])
+        {
+            if (targets[i] == XA_STRING)
+                *selectionString = convertLatin1toUTF8(data);
+            else
+                *selectionString = _glfw_strdup(data);
+        }
+
+        XFree(data);
+
+        if (*selectionString)
+            break;
+    }
+
+    if (!*selectionString)
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "X11: Failed to convert selection to string");
+    }
+
+    return *selectionString;
+}
+
+// Make the specified window and its video mode active on its monitor
+//
+static void acquireMonitor(_GLFWwindow* window)
+{
+    if (_glfw.x11.saver.count == 0)
+    {
+        // Remember old screen saver settings
+        XGetScreenSaver(_glfw.x11.display,
+                        &_glfw.x11.saver.timeout,
+                        &_glfw.x11.saver.interval,
+                        &_glfw.x11.saver.blanking,
+                        &_glfw.x11.saver.exposure);
+
+        // Disable screen saver
+        XSetScreenSaver(_glfw.x11.display, 0, 0, DontPreferBlanking,
+                        DefaultExposures);
+    }
+
+    if (!window->monitor->window)
+        _glfw.x11.saver.count++;
+
+    _glfwSetVideoModeX11(window->monitor, &window->videoMode);
+
+    if (window->x11.overrideRedirect)
+    {
+        int xpos, ypos;
+        GLFWvidmode mode;
+
+        // Manually position the window over its monitor
+        _glfwGetMonitorPosX11(window->monitor, &xpos, &ypos);
+        _glfwGetVideoModeX11(window->monitor, &mode);
+
+        XMoveResizeWindow(_glfw.x11.display, window->x11.handle,
+                          xpos, ypos, mode.width, mode.height);
+    }
+
+    _glfwInputMonitorWindow(window->monitor, window);
+}
+
+// Remove the window and restore the original video mode
+//
+static void releaseMonitor(_GLFWwindow* window)
+{
+    if (window->monitor->window != window)
+        return;
+
+    _glfwInputMonitorWindow(window->monitor, NULL);
+    _glfwRestoreVideoModeX11(window->monitor);
+
+    _glfw.x11.saver.count--;
+
+    if (_glfw.x11.saver.count == 0)
+    {
+        // Restore old screen saver settings
+        XSetScreenSaver(_glfw.x11.display,
+                        _glfw.x11.saver.timeout,
+                        _glfw.x11.saver.interval,
+                        _glfw.x11.saver.blanking,
+                        _glfw.x11.saver.exposure);
+    }
+}
+
+// Process the specified X event
+//
+static void processEvent(XEvent *event)
+{
+    int keycode = 0;
+    Bool filtered = False;
+
+    // HACK: Save scancode as some IMs clear the field in XFilterEvent
+    if (event->type == KeyPress || event->type == KeyRelease)
+        keycode = event->xkey.keycode;
+
+    filtered = XFilterEvent(event, None);
+
+    if (_glfw.x11.randr.available)
+    {
+        if (event->type == _glfw.x11.randr.eventBase + RRNotify)
+        {
+            XRRUpdateConfiguration(event);
+            _glfwPollMonitorsX11();
+            return;
+        }
+    }
+
+    if (_glfw.x11.xkb.available)
+    {
+        if (event->type == _glfw.x11.xkb.eventBase + XkbEventCode)
+        {
+            if (((XkbEvent*) event)->any.xkb_type == XkbStateNotify &&
+                (((XkbEvent*) event)->state.changed & XkbGroupStateMask))
+            {
+                _glfw.x11.xkb.group = ((XkbEvent*) event)->state.group;
+            }
+
+            return;
+        }
+    }
+
+    if (event->type == GenericEvent)
+    {
+        if (_glfw.x11.xi.available)
+        {
+            _GLFWwindow* window = _glfw.x11.disabledCursorWindow;
+
+            if (window &&
+                window->rawMouseMotion &&
+                event->xcookie.extension == _glfw.x11.xi.majorOpcode &&
+                XGetEventData(_glfw.x11.display, &event->xcookie) &&
+                event->xcookie.evtype == XI_RawMotion)
+            {
+                XIRawEvent* re = event->xcookie.data;
+                if (re->valuators.mask_len)
+                {
+                    const double* values = re->raw_values;
+                    double xpos = window->virtualCursorPosX;
+                    double ypos = window->virtualCursorPosY;
+
+                    if (XIMaskIsSet(re->valuators.mask, 0))
+                    {
+                        xpos += *values;
+                        values++;
+                    }
+
+                    if (XIMaskIsSet(re->valuators.mask, 1))
+                        ypos += *values;
+
+                    _glfwInputCursorPos(window, xpos, ypos);
+                }
+            }
+
+            XFreeEventData(_glfw.x11.display, &event->xcookie);
+        }
+
+        return;
+    }
+
+    if (event->type == SelectionRequest)
+    {
+        handleSelectionRequest(event);
+        return;
+    }
+
+    _GLFWwindow* window = NULL;
+    if (XFindContext(_glfw.x11.display,
+                     event->xany.window,
+                     _glfw.x11.context,
+                     (XPointer*) &window) != 0)
+    {
+        // This is an event for a window that has already been destroyed
+        return;
+    }
+
+    switch (event->type)
+    {
+        case ReparentNotify:
+        {
+            window->x11.parent = event->xreparent.parent;
+            return;
+        }
+
+        case KeyPress:
+        {
+            const int key = translateKey(keycode);
+            const int mods = translateState(event->xkey.state);
+            const int plain = !(mods & (GLFW_MOD_CONTROL | GLFW_MOD_ALT));
+
+            if (window->x11.ic)
+            {
+                // HACK: Do not report the key press events duplicated by XIM
+                //       Duplicate key releases are filtered out implicitly by
+                //       the GLFW key repeat logic in _glfwInputKey
+                //       A timestamp per key is used to handle simultaneous keys
+                // NOTE: Always allow the first event for each key through
+                //       (the server never sends a timestamp of zero)
+                // NOTE: Timestamp difference is compared to handle wrap-around
+                Time diff = event->xkey.time - window->x11.keyPressTimes[keycode];
+                if (diff == event->xkey.time || (diff > 0 && diff < ((Time)1 << 31)))
+                {
+                    if (keycode)
+                        _glfwInputKey(window, key, keycode, GLFW_PRESS, mods);
+
+                    window->x11.keyPressTimes[keycode] = event->xkey.time;
+                }
+
+                if (!filtered)
+                {
+                    int count;
+                    Status status;
+                    char buffer[100];
+                    char* chars = buffer;
+
+                    count = Xutf8LookupString(window->x11.ic,
+                                              &event->xkey,
+                                              buffer, sizeof(buffer) - 1,
+                                              NULL, &status);
+
+                    if (status == XBufferOverflow)
+                    {
+                        chars = _glfw_calloc(count + 1, 1);
+                        count = Xutf8LookupString(window->x11.ic,
+                                                  &event->xkey,
+                                                  chars, count,
+                                                  NULL, &status);
+                    }
+
+                    if (status == XLookupChars || status == XLookupBoth)
+                    {
+                        const char* c = chars;
+                        chars[count] = '\0';
+                        while (c - chars < count)
+                            _glfwInputChar(window, decodeUTF8(&c), mods, plain);
+                    }
+
+                    if (chars != buffer)
+                        _glfw_free(chars);
+                }
+            }
+            else
+            {
+                KeySym keysym;
+                XLookupString(&event->xkey, NULL, 0, &keysym, NULL);
+
+                _glfwInputKey(window, key, keycode, GLFW_PRESS, mods);
+
+                const uint32_t codepoint = _glfwKeySym2Unicode(keysym);
+                if (codepoint != GLFW_INVALID_CODEPOINT)
+                    _glfwInputChar(window, codepoint, mods, plain);
+            }
+
+            return;
+        }
+
+        case KeyRelease:
+        {
+            const int key = translateKey(keycode);
+            const int mods = translateState(event->xkey.state);
+
+            if (!_glfw.x11.xkb.detectable)
+            {
+                // HACK: Key repeat events will arrive as KeyRelease/KeyPress
+                //       pairs with similar or identical time stamps
+                //       The key repeat logic in _glfwInputKey expects only key
+                //       presses to repeat, so detect and discard release events
+                if (XEventsQueued(_glfw.x11.display, QueuedAfterReading))
+                {
+                    XEvent next;
+                    XPeekEvent(_glfw.x11.display, &next);
+
+                    if (next.type == KeyPress &&
+                        next.xkey.window == event->xkey.window &&
+                        next.xkey.keycode == keycode)
+                    {
+                        // HACK: The time of repeat events sometimes doesn't
+                        //       match that of the press event, so add an
+                        //       epsilon
+                        //       Toshiyuki Takahashi can press a button
+                        //       16 times per second so it's fairly safe to
+                        //       assume that no human is pressing the key 50
+                        //       times per second (value is ms)
+                        if ((next.xkey.time - event->xkey.time) < 20)
+                        {
+                            // This is very likely a server-generated key repeat
+                            // event, so ignore it
+                            return;
+                        }
+                    }
+                }
+            }
+
+            _glfwInputKey(window, key, keycode, GLFW_RELEASE, mods);
+            return;
+        }
+
+        case ButtonPress:
+        {
+            const int mods = translateState(event->xbutton.state);
+
+            if (event->xbutton.button == Button1)
+                _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_LEFT, GLFW_PRESS, mods);
+            else if (event->xbutton.button == Button2)
+                _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_MIDDLE, GLFW_PRESS, mods);
+            else if (event->xbutton.button == Button3)
+                _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_RIGHT, GLFW_PRESS, mods);
+
+            // Modern X provides scroll events as mouse button presses
+            else if (event->xbutton.button == Button4)
+                _glfwInputScroll(window, 0.0, 1.0);
+            else if (event->xbutton.button == Button5)
+                _glfwInputScroll(window, 0.0, -1.0);
+            else if (event->xbutton.button == Button6)
+                _glfwInputScroll(window, 1.0, 0.0);
+            else if (event->xbutton.button == Button7)
+                _glfwInputScroll(window, -1.0, 0.0);
+
+            else
+            {
+                // Additional buttons after 7 are treated as regular buttons
+                // We subtract 4 to fill the gap left by scroll input above
+                _glfwInputMouseClick(window,
+                                     event->xbutton.button - Button1 - 4,
+                                     GLFW_PRESS,
+                                     mods);
+            }
+
+            return;
+        }
+
+        case ButtonRelease:
+        {
+            const int mods = translateState(event->xbutton.state);
+
+            if (event->xbutton.button == Button1)
+            {
+                _glfwInputMouseClick(window,
+                                     GLFW_MOUSE_BUTTON_LEFT,
+                                     GLFW_RELEASE,
+                                     mods);
+            }
+            else if (event->xbutton.button == Button2)
+            {
+                _glfwInputMouseClick(window,
+                                     GLFW_MOUSE_BUTTON_MIDDLE,
+                                     GLFW_RELEASE,
+                                     mods);
+            }
+            else if (event->xbutton.button == Button3)
+            {
+                _glfwInputMouseClick(window,
+                                     GLFW_MOUSE_BUTTON_RIGHT,
+                                     GLFW_RELEASE,
+                                     mods);
+            }
+            else if (event->xbutton.button > Button7)
+            {
+                // Additional buttons after 7 are treated as regular buttons
+                // We subtract 4 to fill the gap left by scroll input above
+                _glfwInputMouseClick(window,
+                                     event->xbutton.button - Button1 - 4,
+                                     GLFW_RELEASE,
+                                     mods);
+            }
+
+            return;
+        }
+
+        case EnterNotify:
+        {
+            // XEnterWindowEvent is XCrossingEvent
+            const int x = event->xcrossing.x;
+            const int y = event->xcrossing.y;
+
+            // HACK: This is a workaround for WMs (KWM, Fluxbox) that otherwise
+            //       ignore the defined cursor for hidden cursor mode
+            if (window->cursorMode == GLFW_CURSOR_HIDDEN)
+                updateCursorImage(window);
+
+            _glfwInputCursorEnter(window, GLFW_TRUE);
+            _glfwInputCursorPos(window, x, y);
+
+            window->x11.lastCursorPosX = x;
+            window->x11.lastCursorPosY = y;
+            return;
+        }
+
+        case LeaveNotify:
+        {
+            _glfwInputCursorEnter(window, GLFW_FALSE);
+            return;
+        }
+
+        case MotionNotify:
+        {
+            const int x = event->xmotion.x;
+            const int y = event->xmotion.y;
+
+            if (x != window->x11.warpCursorPosX ||
+                y != window->x11.warpCursorPosY)
+            {
+                // The cursor was moved by something other than GLFW
+
+                if (window->cursorMode == GLFW_CURSOR_DISABLED)
+                {
+                    if (_glfw.x11.disabledCursorWindow != window)
+                        return;
+                    if (window->rawMouseMotion)
+                        return;
+
+                    const int dx = x - window->x11.lastCursorPosX;
+                    const int dy = y - window->x11.lastCursorPosY;
+
+                    _glfwInputCursorPos(window,
+                                        window->virtualCursorPosX + dx,
+                                        window->virtualCursorPosY + dy);
+                }
+                else
+                    _glfwInputCursorPos(window, x, y);
+            }
+
+            window->x11.lastCursorPosX = x;
+            window->x11.lastCursorPosY = y;
+            return;
+        }
+
+        case ConfigureNotify:
+        {
+            if (event->xconfigure.width != window->x11.width ||
+                event->xconfigure.height != window->x11.height)
+            {
+                window->x11.width = event->xconfigure.width;
+                window->x11.height = event->xconfigure.height;
+
+                _glfwInputFramebufferSize(window,
+                                          event->xconfigure.width,
+                                          event->xconfigure.height);
+
+                _glfwInputWindowSize(window,
+                                     event->xconfigure.width,
+                                     event->xconfigure.height);
+            }
+
+            int xpos = event->xconfigure.x;
+            int ypos = event->xconfigure.y;
+
+            // NOTE: ConfigureNotify events from the server are in local
+            //       coordinates, so if we are reparented we need to translate
+            //       the position into root (screen) coordinates
+            if (!event->xany.send_event && window->x11.parent != _glfw.x11.root)
+            {
+                _glfwGrabErrorHandlerX11();
+
+                Window dummy;
+                XTranslateCoordinates(_glfw.x11.display,
+                                      window->x11.parent,
+                                      _glfw.x11.root,
+                                      xpos, ypos,
+                                      &xpos, &ypos,
+                                      &dummy);
+
+                _glfwReleaseErrorHandlerX11();
+                if (_glfw.x11.errorCode == BadWindow)
+                    return;
+            }
+
+            if (xpos != window->x11.xpos || ypos != window->x11.ypos)
+            {
+                window->x11.xpos = xpos;
+                window->x11.ypos = ypos;
+
+                _glfwInputWindowPos(window, xpos, ypos);
+            }
+
+            return;
+        }
+
+        case ClientMessage:
+        {
+            // Custom client message, probably from the window manager
+
+            if (filtered)
+                return;
+
+            if (event->xclient.message_type == None)
+                return;
+
+            if (event->xclient.message_type == _glfw.x11.WM_PROTOCOLS)
+            {
+                const Atom protocol = event->xclient.data.l[0];
+                if (protocol == None)
+                    return;
+
+                if (protocol == _glfw.x11.WM_DELETE_WINDOW)
+                {
+                    // The window manager was asked to close the window, for
+                    // example by the user pressing a 'close' window decoration
+                    // button
+                    _glfwInputWindowCloseRequest(window);
+                }
+                else if (protocol == _glfw.x11.NET_WM_PING)
+                {
+                    // The window manager is pinging the application to ensure
+                    // it's still responding to events
+
+                    XEvent reply = *event;
+                    reply.xclient.window = _glfw.x11.root;
+
+                    XSendEvent(_glfw.x11.display, _glfw.x11.root,
+                               False,
+                               SubstructureNotifyMask | SubstructureRedirectMask,
+                               &reply);
+                }
+            }
+            else if (event->xclient.message_type == _glfw.x11.XdndEnter)
+            {
+                // A drag operation has entered the window
+                unsigned long count;
+                Atom* formats = NULL;
+                const GLFWbool list = event->xclient.data.l[1] & 1;
+
+                _glfw.x11.xdnd.source  = event->xclient.data.l[0];
+                _glfw.x11.xdnd.version = event->xclient.data.l[1] >> 24;
+                _glfw.x11.xdnd.format  = None;
+
+                if (_glfw.x11.xdnd.version > _GLFW_XDND_VERSION)
+                    return;
+
+                if (list)
+                {
+                    count = _glfwGetWindowPropertyX11(_glfw.x11.xdnd.source,
+                                                      _glfw.x11.XdndTypeList,
+                                                      XA_ATOM,
+                                                      (unsigned char**) &formats);
+                }
+                else
+                {
+                    count = 3;
+                    formats = (Atom*) event->xclient.data.l + 2;
+                }
+
+                for (unsigned int i = 0;  i < count;  i++)
+                {
+                    if (formats[i] == _glfw.x11.text_uri_list)
+                    {
+                        _glfw.x11.xdnd.format = _glfw.x11.text_uri_list;
+                        break;
+                    }
+                }
+
+                if (list && formats)
+                    XFree(formats);
+            }
+            else if (event->xclient.message_type == _glfw.x11.XdndDrop)
+            {
+                // The drag operation has finished by dropping on the window
+                Time time = CurrentTime;
+
+                if (_glfw.x11.xdnd.version > _GLFW_XDND_VERSION)
+                    return;
+
+                if (_glfw.x11.xdnd.format)
+                {
+                    if (_glfw.x11.xdnd.version >= 1)
+                        time = event->xclient.data.l[2];
+
+                    // Request the chosen format from the source window
+                    XConvertSelection(_glfw.x11.display,
+                                      _glfw.x11.XdndSelection,
+                                      _glfw.x11.xdnd.format,
+                                      _glfw.x11.XdndSelection,
+                                      window->x11.handle,
+                                      time);
+                }
+                else if (_glfw.x11.xdnd.version >= 2)
+                {
+                    XEvent reply = { ClientMessage };
+                    reply.xclient.window = _glfw.x11.xdnd.source;
+                    reply.xclient.message_type = _glfw.x11.XdndFinished;
+                    reply.xclient.format = 32;
+                    reply.xclient.data.l[0] = window->x11.handle;
+                    reply.xclient.data.l[1] = 0; // The drag was rejected
+                    reply.xclient.data.l[2] = None;
+
+                    XSendEvent(_glfw.x11.display, _glfw.x11.xdnd.source,
+                               False, NoEventMask, &reply);
+                    XFlush(_glfw.x11.display);
+                }
+            }
+            else if (event->xclient.message_type == _glfw.x11.XdndPosition)
+            {
+                // The drag operation has moved over the window
+                const int xabs = (event->xclient.data.l[2] >> 16) & 0xffff;
+                const int yabs = (event->xclient.data.l[2]) & 0xffff;
+                Window dummy;
+                int xpos, ypos;
+
+                if (_glfw.x11.xdnd.version > _GLFW_XDND_VERSION)
+                    return;
+
+                XTranslateCoordinates(_glfw.x11.display,
+                                      _glfw.x11.root,
+                                      window->x11.handle,
+                                      xabs, yabs,
+                                      &xpos, &ypos,
+                                      &dummy);
+
+                _glfwInputCursorPos(window, xpos, ypos);
+
+                XEvent reply = { ClientMessage };
+                reply.xclient.window = _glfw.x11.xdnd.source;
+                reply.xclient.message_type = _glfw.x11.XdndStatus;
+                reply.xclient.format = 32;
+                reply.xclient.data.l[0] = window->x11.handle;
+                reply.xclient.data.l[2] = 0; // Specify an empty rectangle
+                reply.xclient.data.l[3] = 0;
+
+                if (_glfw.x11.xdnd.format)
+                {
+                    // Reply that we are ready to copy the dragged data
+                    reply.xclient.data.l[1] = 1; // Accept with no rectangle
+                    if (_glfw.x11.xdnd.version >= 2)
+                        reply.xclient.data.l[4] = _glfw.x11.XdndActionCopy;
+                }
+
+                XSendEvent(_glfw.x11.display, _glfw.x11.xdnd.source,
+                           False, NoEventMask, &reply);
+                XFlush(_glfw.x11.display);
+            }
+
+            return;
+        }
+
+        case SelectionNotify:
+        {
+            if (event->xselection.property == _glfw.x11.XdndSelection)
+            {
+                // The converted data from the drag operation has arrived
+                char* data;
+                const unsigned long result =
+                    _glfwGetWindowPropertyX11(event->xselection.requestor,
+                                              event->xselection.property,
+                                              event->xselection.target,
+                                              (unsigned char**) &data);
+
+                if (result)
+                {
+                    int count;
+                    char** paths = _glfwParseUriList(data, &count);
+
+                    _glfwInputDrop(window, count, (const char**) paths);
+
+                    for (int i = 0;  i < count;  i++)
+                        _glfw_free(paths[i]);
+                    _glfw_free(paths);
+                }
+
+                if (data)
+                    XFree(data);
+
+                if (_glfw.x11.xdnd.version >= 2)
+                {
+                    XEvent reply = { ClientMessage };
+                    reply.xclient.window = _glfw.x11.xdnd.source;
+                    reply.xclient.message_type = _glfw.x11.XdndFinished;
+                    reply.xclient.format = 32;
+                    reply.xclient.data.l[0] = window->x11.handle;
+                    reply.xclient.data.l[1] = result;
+                    reply.xclient.data.l[2] = _glfw.x11.XdndActionCopy;
+
+                    XSendEvent(_glfw.x11.display, _glfw.x11.xdnd.source,
+                               False, NoEventMask, &reply);
+                    XFlush(_glfw.x11.display);
+                }
+            }
+
+            return;
+        }
+
+        case FocusIn:
+        {
+            if (event->xfocus.mode == NotifyGrab ||
+                event->xfocus.mode == NotifyUngrab)
+            {
+                // Ignore focus events from popup indicator windows, window menu
+                // key chords and window dragging
+                return;
+            }
+
+            if (window->cursorMode == GLFW_CURSOR_DISABLED)
+                disableCursor(window);
+            else if (window->cursorMode == GLFW_CURSOR_CAPTURED)
+                captureCursor(window);
+
+            if (window->x11.ic)
+                XSetICFocus(window->x11.ic);
+
+            _glfwInputWindowFocus(window, GLFW_TRUE);
+            return;
+        }
+
+        case FocusOut:
+        {
+            if (event->xfocus.mode == NotifyGrab ||
+                event->xfocus.mode == NotifyUngrab)
+            {
+                // Ignore focus events from popup indicator windows, window menu
+                // key chords and window dragging
+                return;
+            }
+
+            if (window->cursorMode == GLFW_CURSOR_DISABLED)
+                enableCursor(window);
+            else if (window->cursorMode == GLFW_CURSOR_CAPTURED)
+                releaseCursor();
+
+            if (window->x11.ic)
+                XUnsetICFocus(window->x11.ic);
+
+            if (window->monitor && window->autoIconify)
+                _glfwIconifyWindowX11(window);
+
+            _glfwInputWindowFocus(window, GLFW_FALSE);
+            return;
+        }
+
+        case Expose:
+        {
+            _glfwInputWindowDamage(window);
+            return;
+        }
+
+        case PropertyNotify:
+        {
+            if (event->xproperty.state != PropertyNewValue)
+                return;
+
+            if (event->xproperty.atom == _glfw.x11.WM_STATE)
+            {
+                const int state = getWindowState(window);
+                if (state != IconicState && state != NormalState)
+                    return;
+
+                const GLFWbool iconified = (state == IconicState);
+                if (window->x11.iconified != iconified)
+                {
+                    if (window->monitor)
+                    {
+                        if (iconified)
+                            releaseMonitor(window);
+                        else
+                            acquireMonitor(window);
+                    }
+
+                    window->x11.iconified = iconified;
+                    _glfwInputWindowIconify(window, iconified);
+                }
+            }
+            else if (event->xproperty.atom == _glfw.x11.NET_WM_STATE)
+            {
+                const GLFWbool maximized = _glfwWindowMaximizedX11(window);
+                if (window->x11.maximized != maximized)
+                {
+                    window->x11.maximized = maximized;
+                    _glfwInputWindowMaximize(window, maximized);
+                }
+            }
+
+            return;
+        }
+
+        case DestroyNotify:
+            return;
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Retrieve a single window property of the specified type
+// Inspired by fghGetWindowProperty from freeglut
+//
+unsigned long _glfwGetWindowPropertyX11(Window window,
+                                        Atom property,
+                                        Atom type,
+                                        unsigned char** value)
+{
+    Atom actualType;
+    int actualFormat;
+    unsigned long itemCount, bytesAfter;
+
+    XGetWindowProperty(_glfw.x11.display,
+                       window,
+                       property,
+                       0,
+                       LONG_MAX,
+                       False,
+                       type,
+                       &actualType,
+                       &actualFormat,
+                       &itemCount,
+                       &bytesAfter,
+                       value);
+
+    return itemCount;
+}
+
+GLFWbool _glfwIsVisualTransparentX11(Visual* visual)
+{
+    if (!_glfw.x11.xrender.available)
+        return GLFW_FALSE;
+
+    XRenderPictFormat* pf = XRenderFindVisualFormat(_glfw.x11.display, visual);
+    return pf && pf->direct.alphaMask;
+}
+
+// Push contents of our selection to clipboard manager
+//
+void _glfwPushSelectionToManagerX11(void)
+{
+    XConvertSelection(_glfw.x11.display,
+                      _glfw.x11.CLIPBOARD_MANAGER,
+                      _glfw.x11.SAVE_TARGETS,
+                      None,
+                      _glfw.x11.helperWindowHandle,
+                      CurrentTime);
+
+    for (;;)
+    {
+        XEvent event;
+
+        while (XCheckIfEvent(_glfw.x11.display, &event, isSelectionEvent, NULL))
+        {
+            switch (event.type)
+            {
+                case SelectionRequest:
+                    handleSelectionRequest(&event);
+                    break;
+
+                case SelectionNotify:
+                {
+                    if (event.xselection.target == _glfw.x11.SAVE_TARGETS)
+                    {
+                        // This means one of two things; either the selection
+                        // was not owned, which means there is no clipboard
+                        // manager, or the transfer to the clipboard manager has
+                        // completed
+                        // In either case, it means we are done here
+                        return;
+                    }
+
+                    break;
+                }
+            }
+        }
+
+        waitForX11Event(NULL);
+    }
+}
+
+void _glfwCreateInputContextX11(_GLFWwindow* window)
+{
+    XIMCallback callback;
+    callback.callback = (XIMProc) inputContextDestroyCallback;
+    callback.client_data = (XPointer) window;
+
+    window->x11.ic = XCreateIC(_glfw.x11.im,
+                               XNInputStyle,
+                               XIMPreeditNothing | XIMStatusNothing,
+                               XNClientWindow,
+                               window->x11.handle,
+                               XNFocusWindow,
+                               window->x11.handle,
+                               XNDestroyCallback,
+                               &callback,
+                               NULL);
+
+    if (window->x11.ic)
+    {
+        XWindowAttributes attribs;
+        XGetWindowAttributes(_glfw.x11.display, window->x11.handle, &attribs);
+
+        unsigned long filter = 0;
+        if (XGetICValues(window->x11.ic, XNFilterEvents, &filter, NULL) == NULL)
+        {
+            XSelectInput(_glfw.x11.display,
+                         window->x11.handle,
+                         attribs.your_event_mask | filter);
+        }
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwCreateWindowX11(_GLFWwindow* window,
+                              const _GLFWwndconfig* wndconfig,
+                              const _GLFWctxconfig* ctxconfig,
+                              const _GLFWfbconfig* fbconfig)
+{
+    Visual* visual = NULL;
+    int depth;
+
+    if (ctxconfig->client != GLFW_NO_API)
+    {
+        if (ctxconfig->source == GLFW_NATIVE_CONTEXT_API)
+        {
+            if (!_glfwInitGLX())
+                return GLFW_FALSE;
+            if (!_glfwChooseVisualGLX(wndconfig, ctxconfig, fbconfig, &visual, &depth))
+                return GLFW_FALSE;
+        }
+        else if (ctxconfig->source == GLFW_EGL_CONTEXT_API)
+        {
+            if (!_glfwInitEGL())
+                return GLFW_FALSE;
+            if (!_glfwChooseVisualEGL(wndconfig, ctxconfig, fbconfig, &visual, &depth))
+                return GLFW_FALSE;
+        }
+        else if (ctxconfig->source == GLFW_OSMESA_CONTEXT_API)
+        {
+            if (!_glfwInitOSMesa())
+                return GLFW_FALSE;
+        }
+    }
+
+    if (!visual)
+    {
+        visual = DefaultVisual(_glfw.x11.display, _glfw.x11.screen);
+        depth = DefaultDepth(_glfw.x11.display, _glfw.x11.screen);
+    }
+
+    if (!createNativeWindow(window, wndconfig, visual, depth))
+        return GLFW_FALSE;
+
+    if (ctxconfig->client != GLFW_NO_API)
+    {
+        if (ctxconfig->source == GLFW_NATIVE_CONTEXT_API)
+        {
+            if (!_glfwCreateContextGLX(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+        else if (ctxconfig->source == GLFW_EGL_CONTEXT_API)
+        {
+            if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+        else if (ctxconfig->source == GLFW_OSMESA_CONTEXT_API)
+        {
+            if (!_glfwCreateContextOSMesa(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+
+        if (!_glfwRefreshContextAttribs(window, ctxconfig))
+            return GLFW_FALSE;
+    }
+
+    if (wndconfig->mousePassthrough)
+        _glfwSetWindowMousePassthroughX11(window, GLFW_TRUE);
+
+    if (window->monitor)
+    {
+        _glfwShowWindowX11(window);
+        updateWindowMode(window);
+        acquireMonitor(window);
+
+        if (wndconfig->centerCursor)
+            _glfwCenterCursorInContentArea(window);
+    }
+    else
+    {
+        if (wndconfig->visible)
+        {
+            _glfwShowWindowX11(window);
+            if (wndconfig->focused)
+                _glfwFocusWindowX11(window);
+        }
+    }
+
+    XFlush(_glfw.x11.display);
+    return GLFW_TRUE;
+}
+
+void _glfwDestroyWindowX11(_GLFWwindow* window)
+{
+    if (_glfw.x11.disabledCursorWindow == window)
+        enableCursor(window);
+
+    if (window->monitor)
+        releaseMonitor(window);
+
+    if (window->x11.ic)
+    {
+        XDestroyIC(window->x11.ic);
+        window->x11.ic = NULL;
+    }
+
+    if (window->context.destroy)
+        window->context.destroy(window);
+
+    if (window->x11.handle)
+    {
+        XDeleteContext(_glfw.x11.display, window->x11.handle, _glfw.x11.context);
+        XUnmapWindow(_glfw.x11.display, window->x11.handle);
+        XDestroyWindow(_glfw.x11.display, window->x11.handle);
+        window->x11.handle = (Window) 0;
+    }
+
+    if (window->x11.colormap)
+    {
+        XFreeColormap(_glfw.x11.display, window->x11.colormap);
+        window->x11.colormap = (Colormap) 0;
+    }
+
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwSetWindowTitleX11(_GLFWwindow* window, const char* title)
+{
+    if (_glfw.x11.xlib.utf8)
+    {
+        Xutf8SetWMProperties(_glfw.x11.display,
+                             window->x11.handle,
+                             title, title,
+                             NULL, 0,
+                             NULL, NULL, NULL);
+    }
+
+    XChangeProperty(_glfw.x11.display,  window->x11.handle,
+                    _glfw.x11.NET_WM_NAME, _glfw.x11.UTF8_STRING, 8,
+                    PropModeReplace,
+                    (unsigned char*) title, strlen(title));
+
+    XChangeProperty(_glfw.x11.display,  window->x11.handle,
+                    _glfw.x11.NET_WM_ICON_NAME, _glfw.x11.UTF8_STRING, 8,
+                    PropModeReplace,
+                    (unsigned char*) title, strlen(title));
+
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwSetWindowIconX11(_GLFWwindow* window, int count, const GLFWimage* images)
+{
+    if (count)
+    {
+        int longCount = 0;
+
+        for (int i = 0;  i < count;  i++)
+            longCount += 2 + images[i].width * images[i].height;
+
+        unsigned long* icon = _glfw_calloc(longCount, sizeof(unsigned long));
+        unsigned long* target = icon;
+
+        for (int i = 0;  i < count;  i++)
+        {
+            *target++ = images[i].width;
+            *target++ = images[i].height;
+
+            for (int j = 0;  j < images[i].width * images[i].height;  j++)
+            {
+                *target++ = (((unsigned long) images[i].pixels[j * 4 + 0]) << 16) |
+                            (((unsigned long) images[i].pixels[j * 4 + 1]) <<  8) |
+                            (((unsigned long) images[i].pixels[j * 4 + 2]) <<  0) |
+                            (((unsigned long) images[i].pixels[j * 4 + 3]) << 24);
+            }
+        }
+
+        // NOTE: XChangeProperty expects 32-bit values like the image data above to be
+        //       placed in the 32 least significant bits of individual longs.  This is
+        //       true even if long is 64-bit and a WM protocol calls for "packed" data.
+        //       This is because of a historical mistake that then became part of the Xlib
+        //       ABI.  Xlib will pack these values into a regular array of 32-bit values
+        //       before sending it over the wire.
+        XChangeProperty(_glfw.x11.display, window->x11.handle,
+                        _glfw.x11.NET_WM_ICON,
+                        XA_CARDINAL, 32,
+                        PropModeReplace,
+                        (unsigned char*) icon,
+                        longCount);
+
+        _glfw_free(icon);
+    }
+    else
+    {
+        XDeleteProperty(_glfw.x11.display, window->x11.handle,
+                        _glfw.x11.NET_WM_ICON);
+    }
+
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwGetWindowPosX11(_GLFWwindow* window, int* xpos, int* ypos)
+{
+    Window dummy;
+    int x, y;
+
+    XTranslateCoordinates(_glfw.x11.display, window->x11.handle, _glfw.x11.root,
+                          0, 0, &x, &y, &dummy);
+
+    if (xpos)
+        *xpos = x;
+    if (ypos)
+        *ypos = y;
+}
+
+void _glfwSetWindowPosX11(_GLFWwindow* window, int xpos, int ypos)
+{
+    // HACK: Explicitly setting PPosition to any value causes some WMs, notably
+    //       Compiz and Metacity, to honor the position of unmapped windows
+    if (!_glfwWindowVisibleX11(window))
+    {
+        long supplied;
+        XSizeHints* hints = XAllocSizeHints();
+
+        if (XGetWMNormalHints(_glfw.x11.display, window->x11.handle, hints, &supplied))
+        {
+            hints->flags |= PPosition;
+            hints->x = hints->y = 0;
+
+            XSetWMNormalHints(_glfw.x11.display, window->x11.handle, hints);
+        }
+
+        XFree(hints);
+    }
+
+    XMoveWindow(_glfw.x11.display, window->x11.handle, xpos, ypos);
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwGetWindowSizeX11(_GLFWwindow* window, int* width, int* height)
+{
+    XWindowAttributes attribs;
+    XGetWindowAttributes(_glfw.x11.display, window->x11.handle, &attribs);
+
+    if (width)
+        *width = attribs.width;
+    if (height)
+        *height = attribs.height;
+}
+
+void _glfwSetWindowSizeX11(_GLFWwindow* window, int width, int height)
+{
+    if (window->monitor)
+    {
+        if (window->monitor->window == window)
+            acquireMonitor(window);
+    }
+    else
+    {
+        if (!window->resizable)
+            updateNormalHints(window, width, height);
+
+        XResizeWindow(_glfw.x11.display, window->x11.handle, width, height);
+    }
+
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwSetWindowSizeLimitsX11(_GLFWwindow* window,
+                                 int minwidth, int minheight,
+                                 int maxwidth, int maxheight)
+{
+    int width, height;
+    _glfwGetWindowSizeX11(window, &width, &height);
+    updateNormalHints(window, width, height);
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwSetWindowAspectRatioX11(_GLFWwindow* window, int numer, int denom)
+{
+    int width, height;
+    _glfwGetWindowSizeX11(window, &width, &height);
+    updateNormalHints(window, width, height);
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwGetFramebufferSizeX11(_GLFWwindow* window, int* width, int* height)
+{
+    _glfwGetWindowSizeX11(window, width, height);
+}
+
+void _glfwGetWindowFrameSizeX11(_GLFWwindow* window,
+                                int* left, int* top,
+                                int* right, int* bottom)
+{
+    long* extents = NULL;
+
+    if (window->monitor || !window->decorated)
+        return;
+
+    if (_glfw.x11.NET_FRAME_EXTENTS == None)
+        return;
+
+    if (!_glfwWindowVisibleX11(window) &&
+        _glfw.x11.NET_REQUEST_FRAME_EXTENTS)
+    {
+        XEvent event;
+        double timeout = 0.5;
+
+        // Ensure _NET_FRAME_EXTENTS is set, allowing glfwGetWindowFrameSize to
+        // function before the window is mapped
+        sendEventToWM(window, _glfw.x11.NET_REQUEST_FRAME_EXTENTS,
+                      0, 0, 0, 0, 0);
+
+        // HACK: Use a timeout because earlier versions of some window managers
+        //       (at least Unity, Fluxbox and Xfwm) failed to send the reply
+        //       They have been fixed but broken versions are still in the wild
+        //       If you are affected by this and your window manager is NOT
+        //       listed above, PLEASE report it to their and our issue trackers
+        while (!XCheckIfEvent(_glfw.x11.display,
+                              &event,
+                              isFrameExtentsEvent,
+                              (XPointer) window))
+        {
+            if (!waitForX11Event(&timeout))
+            {
+                _glfwInputError(GLFW_PLATFORM_ERROR,
+                                "X11: The window manager has a broken _NET_REQUEST_FRAME_EXTENTS implementation; please report this issue");
+                return;
+            }
+        }
+    }
+
+    if (_glfwGetWindowPropertyX11(window->x11.handle,
+                                  _glfw.x11.NET_FRAME_EXTENTS,
+                                  XA_CARDINAL,
+                                  (unsigned char**) &extents) == 4)
+    {
+        if (left)
+            *left = extents[0];
+        if (top)
+            *top = extents[2];
+        if (right)
+            *right = extents[1];
+        if (bottom)
+            *bottom = extents[3];
+    }
+
+    if (extents)
+        XFree(extents);
+}
+
+void _glfwGetWindowContentScaleX11(_GLFWwindow* window, float* xscale, float* yscale)
+{
+    if (xscale)
+        *xscale = _glfw.x11.contentScaleX;
+    if (yscale)
+        *yscale = _glfw.x11.contentScaleY;
+}
+
+void _glfwIconifyWindowX11(_GLFWwindow* window)
+{
+    if (window->x11.overrideRedirect)
+    {
+        // Override-redirect windows cannot be iconified or restored, as those
+        // tasks are performed by the window manager
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "X11: Iconification of full screen windows requires a WM that supports EWMH full screen");
+        return;
+    }
+
+    XIconifyWindow(_glfw.x11.display, window->x11.handle, _glfw.x11.screen);
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwRestoreWindowX11(_GLFWwindow* window)
+{
+    if (window->x11.overrideRedirect)
+    {
+        // Override-redirect windows cannot be iconified or restored, as those
+        // tasks are performed by the window manager
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "X11: Iconification of full screen windows requires a WM that supports EWMH full screen");
+        return;
+    }
+
+    if (_glfwWindowIconifiedX11(window))
+    {
+        XMapWindow(_glfw.x11.display, window->x11.handle);
+        waitForVisibilityNotify(window);
+    }
+    else if (_glfwWindowVisibleX11(window))
+    {
+        if (_glfw.x11.NET_WM_STATE &&
+            _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT &&
+            _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ)
+        {
+            sendEventToWM(window,
+                          _glfw.x11.NET_WM_STATE,
+                          _NET_WM_STATE_REMOVE,
+                          _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT,
+                          _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ,
+                          1, 0);
+        }
+    }
+
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwMaximizeWindowX11(_GLFWwindow* window)
+{
+    if (!_glfw.x11.NET_WM_STATE ||
+        !_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT ||
+        !_glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ)
+    {
+        return;
+    }
+
+    if (_glfwWindowVisibleX11(window))
+    {
+        sendEventToWM(window,
+                    _glfw.x11.NET_WM_STATE,
+                    _NET_WM_STATE_ADD,
+                    _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT,
+                    _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ,
+                    1, 0);
+    }
+    else
+    {
+        Atom* states = NULL;
+        unsigned long count =
+            _glfwGetWindowPropertyX11(window->x11.handle,
+                                      _glfw.x11.NET_WM_STATE,
+                                      XA_ATOM,
+                                      (unsigned char**) &states);
+
+        // NOTE: We don't check for failure as this property may not exist yet
+        //       and that's fine (and we'll create it implicitly with append)
+
+        Atom missing[2] =
+        {
+            _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT,
+            _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ
+        };
+        unsigned long missingCount = 2;
+
+        for (unsigned long i = 0;  i < count;  i++)
+        {
+            for (unsigned long j = 0;  j < missingCount;  j++)
+            {
+                if (states[i] == missing[j])
+                {
+                    missing[j] = missing[missingCount - 1];
+                    missingCount--;
+                }
+            }
+        }
+
+        if (states)
+            XFree(states);
+
+        if (!missingCount)
+            return;
+
+        XChangeProperty(_glfw.x11.display, window->x11.handle,
+                        _glfw.x11.NET_WM_STATE, XA_ATOM, 32,
+                        PropModeAppend,
+                        (unsigned char*) missing,
+                        missingCount);
+    }
+
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwShowWindowX11(_GLFWwindow* window)
+{
+    if (_glfwWindowVisibleX11(window))
+        return;
+
+    XMapWindow(_glfw.x11.display, window->x11.handle);
+    waitForVisibilityNotify(window);
+}
+
+void _glfwHideWindowX11(_GLFWwindow* window)
+{
+    XUnmapWindow(_glfw.x11.display, window->x11.handle);
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwRequestWindowAttentionX11(_GLFWwindow* window)
+{
+    if (!_glfw.x11.NET_WM_STATE || !_glfw.x11.NET_WM_STATE_DEMANDS_ATTENTION)
+        return;
+
+    sendEventToWM(window,
+                  _glfw.x11.NET_WM_STATE,
+                  _NET_WM_STATE_ADD,
+                  _glfw.x11.NET_WM_STATE_DEMANDS_ATTENTION,
+                  0, 1, 0);
+}
+
+void _glfwFocusWindowX11(_GLFWwindow* window)
+{
+    if (_glfw.x11.NET_ACTIVE_WINDOW)
+        sendEventToWM(window, _glfw.x11.NET_ACTIVE_WINDOW, 1, 0, 0, 0, 0);
+    else if (_glfwWindowVisibleX11(window))
+    {
+        XRaiseWindow(_glfw.x11.display, window->x11.handle);
+        XSetInputFocus(_glfw.x11.display, window->x11.handle,
+                       RevertToParent, CurrentTime);
+    }
+
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwSetWindowMonitorX11(_GLFWwindow* window,
+                              _GLFWmonitor* monitor,
+                              int xpos, int ypos,
+                              int width, int height,
+                              int refreshRate)
+{
+    if (window->monitor == monitor)
+    {
+        if (monitor)
+        {
+            if (monitor->window == window)
+                acquireMonitor(window);
+        }
+        else
+        {
+            if (!window->resizable)
+                updateNormalHints(window, width, height);
+
+            XMoveResizeWindow(_glfw.x11.display, window->x11.handle,
+                              xpos, ypos, width, height);
+        }
+
+        XFlush(_glfw.x11.display);
+        return;
+    }
+
+    if (window->monitor)
+    {
+        _glfwSetWindowDecoratedX11(window, window->decorated);
+        _glfwSetWindowFloatingX11(window, window->floating);
+        releaseMonitor(window);
+    }
+
+    _glfwInputWindowMonitor(window, monitor);
+    updateNormalHints(window, width, height);
+
+    if (window->monitor)
+    {
+        if (!_glfwWindowVisibleX11(window))
+        {
+            XMapRaised(_glfw.x11.display, window->x11.handle);
+            waitForVisibilityNotify(window);
+        }
+
+        updateWindowMode(window);
+        acquireMonitor(window);
+    }
+    else
+    {
+        updateWindowMode(window);
+        XMoveResizeWindow(_glfw.x11.display, window->x11.handle,
+                          xpos, ypos, width, height);
+    }
+
+    XFlush(_glfw.x11.display);
+}
+
+GLFWbool _glfwWindowFocusedX11(_GLFWwindow* window)
+{
+    Window focused;
+    int state;
+
+    XGetInputFocus(_glfw.x11.display, &focused, &state);
+    return window->x11.handle == focused;
+}
+
+GLFWbool _glfwWindowIconifiedX11(_GLFWwindow* window)
+{
+    return getWindowState(window) == IconicState;
+}
+
+GLFWbool _glfwWindowVisibleX11(_GLFWwindow* window)
+{
+    XWindowAttributes wa;
+    XGetWindowAttributes(_glfw.x11.display, window->x11.handle, &wa);
+    return wa.map_state == IsViewable;
+}
+
+GLFWbool _glfwWindowMaximizedX11(_GLFWwindow* window)
+{
+    Atom* states;
+    GLFWbool maximized = GLFW_FALSE;
+
+    if (!_glfw.x11.NET_WM_STATE ||
+        !_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT ||
+        !_glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ)
+    {
+        return maximized;
+    }
+
+    const unsigned long count =
+        _glfwGetWindowPropertyX11(window->x11.handle,
+                                  _glfw.x11.NET_WM_STATE,
+                                  XA_ATOM,
+                                  (unsigned char**) &states);
+
+    for (unsigned long i = 0;  i < count;  i++)
+    {
+        if (states[i] == _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT ||
+            states[i] == _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ)
+        {
+            maximized = GLFW_TRUE;
+            break;
+        }
+    }
+
+    if (states)
+        XFree(states);
+
+    return maximized;
+}
+
+GLFWbool _glfwWindowHoveredX11(_GLFWwindow* window)
+{
+    Window w = _glfw.x11.root;
+    while (w)
+    {
+        Window root;
+        int rootX, rootY, childX, childY;
+        unsigned int mask;
+
+        _glfwGrabErrorHandlerX11();
+
+        const Bool result = XQueryPointer(_glfw.x11.display, w,
+                                          &root, &w, &rootX, &rootY,
+                                          &childX, &childY, &mask);
+
+        _glfwReleaseErrorHandlerX11();
+
+        if (_glfw.x11.errorCode == BadWindow)
+            w = _glfw.x11.root;
+        else if (!result)
+            return GLFW_FALSE;
+        else if (w == window->x11.handle)
+            return GLFW_TRUE;
+    }
+
+    return GLFW_FALSE;
+}
+
+GLFWbool _glfwFramebufferTransparentX11(_GLFWwindow* window)
+{
+    if (!window->x11.transparent)
+        return GLFW_FALSE;
+
+    return XGetSelectionOwner(_glfw.x11.display, _glfw.x11.NET_WM_CM_Sx) != None;
+}
+
+void _glfwSetWindowResizableX11(_GLFWwindow* window, GLFWbool enabled)
+{
+    int width, height;
+    _glfwGetWindowSizeX11(window, &width, &height);
+    updateNormalHints(window, width, height);
+}
+
+void _glfwSetWindowDecoratedX11(_GLFWwindow* window, GLFWbool enabled)
+{
+    struct
+    {
+        unsigned long flags;
+        unsigned long functions;
+        unsigned long decorations;
+        long input_mode;
+        unsigned long status;
+    } hints = {0};
+
+    hints.flags = MWM_HINTS_DECORATIONS;
+    hints.decorations = enabled ? MWM_DECOR_ALL : 0;
+
+    XChangeProperty(_glfw.x11.display, window->x11.handle,
+                    _glfw.x11.MOTIF_WM_HINTS,
+                    _glfw.x11.MOTIF_WM_HINTS, 32,
+                    PropModeReplace,
+                    (unsigned char*) &hints,
+                    sizeof(hints) / sizeof(long));
+}
+
+void _glfwSetWindowFloatingX11(_GLFWwindow* window, GLFWbool enabled)
+{
+    if (!_glfw.x11.NET_WM_STATE || !_glfw.x11.NET_WM_STATE_ABOVE)
+        return;
+
+    if (_glfwWindowVisibleX11(window))
+    {
+        const long action = enabled ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE;
+        sendEventToWM(window,
+                      _glfw.x11.NET_WM_STATE,
+                      action,
+                      _glfw.x11.NET_WM_STATE_ABOVE,
+                      0, 1, 0);
+    }
+    else
+    {
+        Atom* states = NULL;
+        const unsigned long count =
+            _glfwGetWindowPropertyX11(window->x11.handle,
+                                      _glfw.x11.NET_WM_STATE,
+                                      XA_ATOM,
+                                      (unsigned char**) &states);
+
+        // NOTE: We don't check for failure as this property may not exist yet
+        //       and that's fine (and we'll create it implicitly with append)
+
+        if (enabled)
+        {
+            unsigned long i;
+
+            for (i = 0;  i < count;  i++)
+            {
+                if (states[i] == _glfw.x11.NET_WM_STATE_ABOVE)
+                    break;
+            }
+
+            if (i == count)
+            {
+                XChangeProperty(_glfw.x11.display, window->x11.handle,
+                                _glfw.x11.NET_WM_STATE, XA_ATOM, 32,
+                                PropModeAppend,
+                                (unsigned char*) &_glfw.x11.NET_WM_STATE_ABOVE,
+                                1);
+            }
+        }
+        else if (states)
+        {
+            for (unsigned long i = 0;  i < count;  i++)
+            {
+                if (states[i] == _glfw.x11.NET_WM_STATE_ABOVE)
+                {
+                    states[i] = states[count - 1];
+                    XChangeProperty(_glfw.x11.display, window->x11.handle,
+                                    _glfw.x11.NET_WM_STATE, XA_ATOM, 32,
+                                    PropModeReplace, (unsigned char*) states, count - 1);
+                    break;
+                }
+            }
+        }
+
+        if (states)
+            XFree(states);
+    }
+
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwSetWindowMousePassthroughX11(_GLFWwindow* window, GLFWbool enabled)
+{
+    if (!_glfw.x11.xshape.available)
+        return;
+
+    if (enabled)
+    {
+        Region region = XCreateRegion();
+        XShapeCombineRegion(_glfw.x11.display, window->x11.handle,
+                            ShapeInput, 0, 0, region, ShapeSet);
+        XDestroyRegion(region);
+    }
+    else
+    {
+        XShapeCombineMask(_glfw.x11.display, window->x11.handle,
+                          ShapeInput, 0, 0, None, ShapeSet);
+    }
+}
+
+float _glfwGetWindowOpacityX11(_GLFWwindow* window)
+{
+    float opacity = 1.f;
+
+    if (XGetSelectionOwner(_glfw.x11.display, _glfw.x11.NET_WM_CM_Sx))
+    {
+        CARD32* value = NULL;
+
+        if (_glfwGetWindowPropertyX11(window->x11.handle,
+                                      _glfw.x11.NET_WM_WINDOW_OPACITY,
+                                      XA_CARDINAL,
+                                      (unsigned char**) &value))
+        {
+            opacity = (float) (*value / (double) 0xffffffffu);
+        }
+
+        if (value)
+            XFree(value);
+    }
+
+    return opacity;
+}
+
+void _glfwSetWindowOpacityX11(_GLFWwindow* window, float opacity)
+{
+    const CARD32 value = (CARD32) (0xffffffffu * (double) opacity);
+    XChangeProperty(_glfw.x11.display, window->x11.handle,
+                    _glfw.x11.NET_WM_WINDOW_OPACITY, XA_CARDINAL, 32,
+                    PropModeReplace, (unsigned char*) &value, 1);
+}
+
+void _glfwSetRawMouseMotionX11(_GLFWwindow *window, GLFWbool enabled)
+{
+    if (!_glfw.x11.xi.available)
+        return;
+
+    if (_glfw.x11.disabledCursorWindow != window)
+        return;
+
+    if (enabled)
+        enableRawMouseMotion(window);
+    else
+        disableRawMouseMotion(window);
+}
+
+GLFWbool _glfwRawMouseMotionSupportedX11(void)
+{
+    return _glfw.x11.xi.available;
+}
+
+void _glfwPollEventsX11(void)
+{
+    drainEmptyEvents();
+
+#if defined(GLFW_BUILD_LINUX_JOYSTICK)
+    if (_glfw.joysticksInitialized)
+        _glfwDetectJoystickConnectionLinux();
+#endif
+    XPending(_glfw.x11.display);
+
+    while (QLength(_glfw.x11.display))
+    {
+        XEvent event;
+        XNextEvent(_glfw.x11.display, &event);
+        processEvent(&event);
+    }
+
+    _GLFWwindow* window = _glfw.x11.disabledCursorWindow;
+    if (window)
+    {
+        int width, height;
+        _glfwGetWindowSizeX11(window, &width, &height);
+
+        // NOTE: Re-center the cursor only if it has moved since the last call,
+        //       to avoid breaking glfwWaitEvents with MotionNotify
+        if (window->x11.lastCursorPosX != width / 2 ||
+            window->x11.lastCursorPosY != height / 2)
+        {
+            _glfwSetCursorPosX11(window, width / 2, height / 2);
+        }
+    }
+
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwWaitEventsX11(void)
+{
+    waitForAnyEvent(NULL);
+    _glfwPollEventsX11();
+}
+
+void _glfwWaitEventsTimeoutX11(double timeout)
+{
+    waitForAnyEvent(&timeout);
+    _glfwPollEventsX11();
+}
+
+void _glfwPostEmptyEventX11(void)
+{
+    writeEmptyEvent();
+}
+
+void _glfwGetCursorPosX11(_GLFWwindow* window, double* xpos, double* ypos)
+{
+    Window root, child;
+    int rootX, rootY, childX, childY;
+    unsigned int mask;
+
+    XQueryPointer(_glfw.x11.display, window->x11.handle,
+                  &root, &child,
+                  &rootX, &rootY, &childX, &childY,
+                  &mask);
+
+    if (xpos)
+        *xpos = childX;
+    if (ypos)
+        *ypos = childY;
+}
+
+void _glfwSetCursorPosX11(_GLFWwindow* window, double x, double y)
+{
+    // Store the new position so it can be recognized later
+    window->x11.warpCursorPosX = (int) x;
+    window->x11.warpCursorPosY = (int) y;
+
+    XWarpPointer(_glfw.x11.display, None, window->x11.handle,
+                 0,0,0,0, (int) x, (int) y);
+    XFlush(_glfw.x11.display);
+}
+
+void _glfwSetCursorModeX11(_GLFWwindow* window, int mode)
+{
+    if (_glfwWindowFocusedX11(window))
+    {
+        if (mode == GLFW_CURSOR_DISABLED)
+        {
+            _glfwGetCursorPosX11(window,
+                                 &_glfw.x11.restoreCursorPosX,
+                                 &_glfw.x11.restoreCursorPosY);
+            _glfwCenterCursorInContentArea(window);
+            if (window->rawMouseMotion)
+                enableRawMouseMotion(window);
+        }
+        else if (_glfw.x11.disabledCursorWindow == window)
+        {
+            if (window->rawMouseMotion)
+                disableRawMouseMotion(window);
+        }
+
+        if (mode == GLFW_CURSOR_DISABLED || mode == GLFW_CURSOR_CAPTURED)
+            captureCursor(window);
+        else
+            releaseCursor();
+
+        if (mode == GLFW_CURSOR_DISABLED)
+            _glfw.x11.disabledCursorWindow = window;
+        else if (_glfw.x11.disabledCursorWindow == window)
+        {
+            _glfw.x11.disabledCursorWindow = NULL;
+            _glfwSetCursorPosX11(window,
+                                 _glfw.x11.restoreCursorPosX,
+                                 _glfw.x11.restoreCursorPosY);
+        }
+    }
+
+    updateCursorImage(window);
+    XFlush(_glfw.x11.display);
+}
+
+const char* _glfwGetScancodeNameX11(int scancode)
+{
+    if (!_glfw.x11.xkb.available)
+        return NULL;
+
+    if (scancode < 0 || scancode > 0xff)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Invalid scancode %i", scancode);
+        return NULL;
+    }
+
+    const int key = _glfw.x11.keycodes[scancode];
+    if (key == GLFW_KEY_UNKNOWN)
+        return NULL;
+
+    const KeySym keysym = XkbKeycodeToKeysym(_glfw.x11.display,
+                                             scancode, _glfw.x11.xkb.group, 0);
+    if (keysym == NoSymbol)
+        return NULL;
+
+    const uint32_t codepoint = _glfwKeySym2Unicode(keysym);
+    if (codepoint == GLFW_INVALID_CODEPOINT)
+        return NULL;
+
+    const size_t count = _glfwEncodeUTF8(_glfw.x11.keynames[key], codepoint);
+    if (count == 0)
+        return NULL;
+
+    _glfw.x11.keynames[key][count] = '\0';
+    return _glfw.x11.keynames[key];
+}
+
+int _glfwGetKeyScancodeX11(int key)
+{
+    return _glfw.x11.scancodes[key];
+}
+
+GLFWbool _glfwCreateCursorX11(_GLFWcursor* cursor,
+                              const GLFWimage* image,
+                              int xhot, int yhot)
+{
+    cursor->x11.handle = _glfwCreateNativeCursorX11(image, xhot, yhot);
+    if (!cursor->x11.handle)
+        return GLFW_FALSE;
+
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwCreateStandardCursorX11(_GLFWcursor* cursor, int shape)
+{
+    if (_glfw.x11.xcursor.handle)
+    {
+        char* theme = XcursorGetTheme(_glfw.x11.display);
+        if (theme)
+        {
+            const int size = XcursorGetDefaultSize(_glfw.x11.display);
+            const char* name = NULL;
+
+            switch (shape)
+            {
+                case GLFW_ARROW_CURSOR:
+                    name = "default";
+                    break;
+                case GLFW_IBEAM_CURSOR:
+                    name = "text";
+                    break;
+                case GLFW_CROSSHAIR_CURSOR:
+                    name = "crosshair";
+                    break;
+                case GLFW_POINTING_HAND_CURSOR:
+                    name = "pointer";
+                    break;
+                case GLFW_RESIZE_EW_CURSOR:
+                    name = "ew-resize";
+                    break;
+                case GLFW_RESIZE_NS_CURSOR:
+                    name = "ns-resize";
+                    break;
+                case GLFW_RESIZE_NWSE_CURSOR:
+                    name = "nwse-resize";
+                    break;
+                case GLFW_RESIZE_NESW_CURSOR:
+                    name = "nesw-resize";
+                    break;
+                case GLFW_RESIZE_ALL_CURSOR:
+                    name = "all-scroll";
+                    break;
+                case GLFW_NOT_ALLOWED_CURSOR:
+                    name = "not-allowed";
+                    break;
+            }
+
+            XcursorImage* image = XcursorLibraryLoadImage(name, theme, size);
+            if (image)
+            {
+                cursor->x11.handle = XcursorImageLoadCursor(_glfw.x11.display, image);
+                XcursorImageDestroy(image);
+            }
+        }
+    }
+
+    if (!cursor->x11.handle)
+    {
+        unsigned int native = 0;
+
+        switch (shape)
+        {
+            case GLFW_ARROW_CURSOR:
+                native = XC_left_ptr;
+                break;
+            case GLFW_IBEAM_CURSOR:
+                native = XC_xterm;
+                break;
+            case GLFW_CROSSHAIR_CURSOR:
+                native = XC_crosshair;
+                break;
+            case GLFW_POINTING_HAND_CURSOR:
+                native = XC_hand2;
+                break;
+            case GLFW_RESIZE_EW_CURSOR:
+                native = XC_sb_h_double_arrow;
+                break;
+            case GLFW_RESIZE_NS_CURSOR:
+                native = XC_sb_v_double_arrow;
+                break;
+            case GLFW_RESIZE_ALL_CURSOR:
+                native = XC_fleur;
+                break;
+            default:
+                _glfwInputError(GLFW_CURSOR_UNAVAILABLE,
+                                "X11: Standard cursor shape unavailable");
+                return GLFW_FALSE;
+        }
+
+        cursor->x11.handle = XCreateFontCursor(_glfw.x11.display, native);
+        if (!cursor->x11.handle)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "X11: Failed to create standard cursor");
+            return GLFW_FALSE;
+        }
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwDestroyCursorX11(_GLFWcursor* cursor)
+{
+    if (cursor->x11.handle)
+        XFreeCursor(_glfw.x11.display, cursor->x11.handle);
+}
+
+void _glfwSetCursorX11(_GLFWwindow* window, _GLFWcursor* cursor)
+{
+    if (window->cursorMode == GLFW_CURSOR_NORMAL ||
+        window->cursorMode == GLFW_CURSOR_CAPTURED)
+    {
+        updateCursorImage(window);
+        XFlush(_glfw.x11.display);
+    }
+}
+
+void _glfwSetClipboardStringX11(const char* string)
+{
+    char* copy = _glfw_strdup(string);
+    _glfw_free(_glfw.x11.clipboardString);
+    _glfw.x11.clipboardString = copy;
+
+    XSetSelectionOwner(_glfw.x11.display,
+                       _glfw.x11.CLIPBOARD,
+                       _glfw.x11.helperWindowHandle,
+                       CurrentTime);
+
+    if (XGetSelectionOwner(_glfw.x11.display, _glfw.x11.CLIPBOARD) !=
+        _glfw.x11.helperWindowHandle)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "X11: Failed to become owner of clipboard selection");
+    }
+}
+
+const char* _glfwGetClipboardStringX11(void)
+{
+    return getSelectionString(_glfw.x11.CLIPBOARD);
+}
+
+EGLenum _glfwGetEGLPlatformX11(EGLint** attribs)
+{
+    if (_glfw.egl.ANGLE_platform_angle)
+    {
+        int type = 0;
+
+        if (_glfw.egl.ANGLE_platform_angle_opengl)
+        {
+            if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_OPENGL)
+                type = EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE;
+        }
+
+        if (_glfw.egl.ANGLE_platform_angle_vulkan)
+        {
+            if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_VULKAN)
+                type = EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE;
+        }
+
+        if (type)
+        {
+            *attribs = _glfw_calloc(5, sizeof(EGLint));
+            (*attribs)[0] = EGL_PLATFORM_ANGLE_TYPE_ANGLE;
+            (*attribs)[1] = type;
+            (*attribs)[2] = EGL_PLATFORM_ANGLE_NATIVE_PLATFORM_TYPE_ANGLE;
+            (*attribs)[3] = EGL_PLATFORM_X11_EXT;
+            (*attribs)[4] = EGL_NONE;
+            return EGL_PLATFORM_ANGLE_ANGLE;
+        }
+    }
+
+    if (_glfw.egl.EXT_platform_base && _glfw.egl.EXT_platform_x11)
+        return EGL_PLATFORM_X11_EXT;
+
+    return 0;
+}
+
+EGLNativeDisplayType _glfwGetEGLNativeDisplayX11(void)
+{
+    return _glfw.x11.display;
+}
+
+EGLNativeWindowType _glfwGetEGLNativeWindowX11(_GLFWwindow* window)
+{
+    if (_glfw.egl.platform)
+        return &window->x11.handle;
+    else
+        return (EGLNativeWindowType) window->x11.handle;
+}
+
+void _glfwGetRequiredInstanceExtensionsX11(char** extensions)
+{
+    if (!_glfw.vk.KHR_surface)
+        return;
+
+    if (!_glfw.vk.KHR_xcb_surface || !_glfw.x11.x11xcb.handle)
+    {
+        if (!_glfw.vk.KHR_xlib_surface)
+            return;
+    }
+
+    extensions[0] = "VK_KHR_surface";
+
+    // NOTE: VK_KHR_xcb_surface is preferred due to some early ICDs exposing but
+    //       not correctly implementing VK_KHR_xlib_surface
+    if (_glfw.vk.KHR_xcb_surface && _glfw.x11.x11xcb.handle)
+        extensions[1] = "VK_KHR_xcb_surface";
+    else
+        extensions[1] = "VK_KHR_xlib_surface";
+}
+
+GLFWbool _glfwGetPhysicalDevicePresentationSupportX11(VkInstance instance,
+                                                      VkPhysicalDevice device,
+                                                      uint32_t queuefamily)
+{
+    VisualID visualID = XVisualIDFromVisual(DefaultVisual(_glfw.x11.display,
+                                                          _glfw.x11.screen));
+
+    if (_glfw.vk.KHR_xcb_surface && _glfw.x11.x11xcb.handle)
+    {
+        PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR
+            vkGetPhysicalDeviceXcbPresentationSupportKHR =
+            (PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR)
+            vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceXcbPresentationSupportKHR");
+        if (!vkGetPhysicalDeviceXcbPresentationSupportKHR)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "X11: Vulkan instance missing VK_KHR_xcb_surface extension");
+            return GLFW_FALSE;
+        }
+
+        xcb_connection_t* connection = XGetXCBConnection(_glfw.x11.display);
+        if (!connection)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "X11: Failed to retrieve XCB connection");
+            return GLFW_FALSE;
+        }
+
+        return vkGetPhysicalDeviceXcbPresentationSupportKHR(device,
+                                                            queuefamily,
+                                                            connection,
+                                                            visualID);
+    }
+    else
+    {
+        PFN_vkGetPhysicalDeviceXlibPresentationSupportKHR
+            vkGetPhysicalDeviceXlibPresentationSupportKHR =
+            (PFN_vkGetPhysicalDeviceXlibPresentationSupportKHR)
+            vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceXlibPresentationSupportKHR");
+        if (!vkGetPhysicalDeviceXlibPresentationSupportKHR)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "X11: Vulkan instance missing VK_KHR_xlib_surface extension");
+            return GLFW_FALSE;
+        }
+
+        return vkGetPhysicalDeviceXlibPresentationSupportKHR(device,
+                                                             queuefamily,
+                                                             _glfw.x11.display,
+                                                             visualID);
+    }
+}
+
+VkResult _glfwCreateWindowSurfaceX11(VkInstance instance,
+                                     _GLFWwindow* window,
+                                     const VkAllocationCallbacks* allocator,
+                                     VkSurfaceKHR* surface)
+{
+    if (_glfw.vk.KHR_xcb_surface && _glfw.x11.x11xcb.handle)
+    {
+        VkResult err;
+        VkXcbSurfaceCreateInfoKHR sci;
+        PFN_vkCreateXcbSurfaceKHR vkCreateXcbSurfaceKHR;
+
+        xcb_connection_t* connection = XGetXCBConnection(_glfw.x11.display);
+        if (!connection)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "X11: Failed to retrieve XCB connection");
+            return VK_ERROR_EXTENSION_NOT_PRESENT;
+        }
+
+        vkCreateXcbSurfaceKHR = (PFN_vkCreateXcbSurfaceKHR)
+            vkGetInstanceProcAddr(instance, "vkCreateXcbSurfaceKHR");
+        if (!vkCreateXcbSurfaceKHR)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "X11: Vulkan instance missing VK_KHR_xcb_surface extension");
+            return VK_ERROR_EXTENSION_NOT_PRESENT;
+        }
+
+        memset(&sci, 0, sizeof(sci));
+        sci.sType = VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR;
+        sci.connection = connection;
+        sci.window = window->x11.handle;
+
+        err = vkCreateXcbSurfaceKHR(instance, &sci, allocator, surface);
+        if (err)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "X11: Failed to create Vulkan XCB surface: %s",
+                            _glfwGetVulkanResultString(err));
+        }
+
+        return err;
+    }
+    else
+    {
+        VkResult err;
+        VkXlibSurfaceCreateInfoKHR sci;
+        PFN_vkCreateXlibSurfaceKHR vkCreateXlibSurfaceKHR;
+
+        vkCreateXlibSurfaceKHR = (PFN_vkCreateXlibSurfaceKHR)
+            vkGetInstanceProcAddr(instance, "vkCreateXlibSurfaceKHR");
+        if (!vkCreateXlibSurfaceKHR)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "X11: Vulkan instance missing VK_KHR_xlib_surface extension");
+            return VK_ERROR_EXTENSION_NOT_PRESENT;
+        }
+
+        memset(&sci, 0, sizeof(sci));
+        sci.sType = VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR;
+        sci.dpy = _glfw.x11.display;
+        sci.window = window->x11.handle;
+
+        err = vkCreateXlibSurfaceKHR(instance, &sci, allocator, surface);
+        if (err)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "X11: Failed to create Vulkan X11 surface: %s",
+                            _glfwGetVulkanResultString(err));
+        }
+
+        return err;
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI Display* glfwGetX11Display(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "X11: Platform not initialized");
+        return NULL;
+    }
+
+    return _glfw.x11.display;
+}
+
+GLFWAPI Window glfwGetX11Window(GLFWwindow* handle)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(None);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "X11: Platform not initialized");
+        return None;
+    }
+
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    return window->x11.handle;
+}
+
+GLFWAPI void glfwSetX11SelectionString(const char* string)
+{
+    assert(string != NULL);
+
+    _GLFW_REQUIRE_INIT();
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "X11: Platform not initialized");
+        return;
+    }
+
+    _glfw_free(_glfw.x11.primarySelectionString);
+    _glfw.x11.primarySelectionString = _glfw_strdup(string);
+
+    XSetSelectionOwner(_glfw.x11.display,
+                       _glfw.x11.PRIMARY,
+                       _glfw.x11.helperWindowHandle,
+                       CurrentTime);
+
+    if (XGetSelectionOwner(_glfw.x11.display, _glfw.x11.PRIMARY) !=
+        _glfw.x11.helperWindowHandle)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "X11: Failed to become owner of primary selection");
+    }
+}
+
+GLFWAPI const char* glfwGetX11SelectionString(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "X11: Platform not initialized");
+        return NULL;
+    }
+
+    return getSelectionString(_glfw.x11.PRIMARY);
+}
+
+#endif // _GLFW_X11
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/xkb_unicode.c b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/xkb_unicode.c
new file mode 100644
index 000000000000..68767cc36433
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/xkb_unicode.c
@@ -0,0 +1,943 @@
+//========================================================================
+// GLFW 3.5 X11 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_X11) || defined(_GLFW_WAYLAND)
+
+/*
+ * Marcus: This code was originally written by Markus G. Kuhn.
+ * I have made some slight changes (trimmed it down a bit from >60 KB to
+ * 20 KB), but the functionality is the same.
+ */
+
+/*
+ * This module converts keysym values into the corresponding ISO 10646
+ * (UCS, Unicode) values.
+ *
+ * The array keysymtab[] contains pairs of X11 keysym values for graphical
+ * characters and the corresponding Unicode value. The function
+ * _glfwKeySym2Unicode() maps a keysym onto a Unicode value using a binary
+ * search, therefore keysymtab[] must remain SORTED by keysym value.
+ *
+ * We allow to represent any UCS character in the range U-00000000 to
+ * U-00FFFFFF by a keysym value in the range 0x01000000 to 0x01ffffff.
+ * This admittedly does not cover the entire 31-bit space of UCS, but
+ * it does cover all of the characters up to U-10FFFF, which can be
+ * represented by UTF-16, and more, and it is very unlikely that higher
+ * UCS codes will ever be assigned by ISO. So to get Unicode character
+ * U+ABCD you can directly use keysym 0x0100abcd.
+ *
+ * Original author: Markus G. Kuhn <mkuhn@acm.org>, University of
+ *                  Cambridge, April 2001
+ *
+ * Special thanks to Richard Verhoeven <river@win.tue.nl> for preparing
+ * an initial draft of the mapping table.
+ *
+ */
+
+
+//************************************************************************
+//****                KeySym to Unicode mapping table                 ****
+//************************************************************************
+
+static const struct codepair {
+  unsigned short keysym;
+  unsigned short ucs;
+} keysymtab[] = {
+  { 0x01a1, 0x0104 },
+  { 0x01a2, 0x02d8 },
+  { 0x01a3, 0x0141 },
+  { 0x01a5, 0x013d },
+  { 0x01a6, 0x015a },
+  { 0x01a9, 0x0160 },
+  { 0x01aa, 0x015e },
+  { 0x01ab, 0x0164 },
+  { 0x01ac, 0x0179 },
+  { 0x01ae, 0x017d },
+  { 0x01af, 0x017b },
+  { 0x01b1, 0x0105 },
+  { 0x01b2, 0x02db },
+  { 0x01b3, 0x0142 },
+  { 0x01b5, 0x013e },
+  { 0x01b6, 0x015b },
+  { 0x01b7, 0x02c7 },
+  { 0x01b9, 0x0161 },
+  { 0x01ba, 0x015f },
+  { 0x01bb, 0x0165 },
+  { 0x01bc, 0x017a },
+  { 0x01bd, 0x02dd },
+  { 0x01be, 0x017e },
+  { 0x01bf, 0x017c },
+  { 0x01c0, 0x0154 },
+  { 0x01c3, 0x0102 },
+  { 0x01c5, 0x0139 },
+  { 0x01c6, 0x0106 },
+  { 0x01c8, 0x010c },
+  { 0x01ca, 0x0118 },
+  { 0x01cc, 0x011a },
+  { 0x01cf, 0x010e },
+  { 0x01d0, 0x0110 },
+  { 0x01d1, 0x0143 },
+  { 0x01d2, 0x0147 },
+  { 0x01d5, 0x0150 },
+  { 0x01d8, 0x0158 },
+  { 0x01d9, 0x016e },
+  { 0x01db, 0x0170 },
+  { 0x01de, 0x0162 },
+  { 0x01e0, 0x0155 },
+  { 0x01e3, 0x0103 },
+  { 0x01e5, 0x013a },
+  { 0x01e6, 0x0107 },
+  { 0x01e8, 0x010d },
+  { 0x01ea, 0x0119 },
+  { 0x01ec, 0x011b },
+  { 0x01ef, 0x010f },
+  { 0x01f0, 0x0111 },
+  { 0x01f1, 0x0144 },
+  { 0x01f2, 0x0148 },
+  { 0x01f5, 0x0151 },
+  { 0x01f8, 0x0159 },
+  { 0x01f9, 0x016f },
+  { 0x01fb, 0x0171 },
+  { 0x01fe, 0x0163 },
+  { 0x01ff, 0x02d9 },
+  { 0x02a1, 0x0126 },
+  { 0x02a6, 0x0124 },
+  { 0x02a9, 0x0130 },
+  { 0x02ab, 0x011e },
+  { 0x02ac, 0x0134 },
+  { 0x02b1, 0x0127 },
+  { 0x02b6, 0x0125 },
+  { 0x02b9, 0x0131 },
+  { 0x02bb, 0x011f },
+  { 0x02bc, 0x0135 },
+  { 0x02c5, 0x010a },
+  { 0x02c6, 0x0108 },
+  { 0x02d5, 0x0120 },
+  { 0x02d8, 0x011c },
+  { 0x02dd, 0x016c },
+  { 0x02de, 0x015c },
+  { 0x02e5, 0x010b },
+  { 0x02e6, 0x0109 },
+  { 0x02f5, 0x0121 },
+  { 0x02f8, 0x011d },
+  { 0x02fd, 0x016d },
+  { 0x02fe, 0x015d },
+  { 0x03a2, 0x0138 },
+  { 0x03a3, 0x0156 },
+  { 0x03a5, 0x0128 },
+  { 0x03a6, 0x013b },
+  { 0x03aa, 0x0112 },
+  { 0x03ab, 0x0122 },
+  { 0x03ac, 0x0166 },
+  { 0x03b3, 0x0157 },
+  { 0x03b5, 0x0129 },
+  { 0x03b6, 0x013c },
+  { 0x03ba, 0x0113 },
+  { 0x03bb, 0x0123 },
+  { 0x03bc, 0x0167 },
+  { 0x03bd, 0x014a },
+  { 0x03bf, 0x014b },
+  { 0x03c0, 0x0100 },
+  { 0x03c7, 0x012e },
+  { 0x03cc, 0x0116 },
+  { 0x03cf, 0x012a },
+  { 0x03d1, 0x0145 },
+  { 0x03d2, 0x014c },
+  { 0x03d3, 0x0136 },
+  { 0x03d9, 0x0172 },
+  { 0x03dd, 0x0168 },
+  { 0x03de, 0x016a },
+  { 0x03e0, 0x0101 },
+  { 0x03e7, 0x012f },
+  { 0x03ec, 0x0117 },
+  { 0x03ef, 0x012b },
+  { 0x03f1, 0x0146 },
+  { 0x03f2, 0x014d },
+  { 0x03f3, 0x0137 },
+  { 0x03f9, 0x0173 },
+  { 0x03fd, 0x0169 },
+  { 0x03fe, 0x016b },
+  { 0x047e, 0x203e },
+  { 0x04a1, 0x3002 },
+  { 0x04a2, 0x300c },
+  { 0x04a3, 0x300d },
+  { 0x04a4, 0x3001 },
+  { 0x04a5, 0x30fb },
+  { 0x04a6, 0x30f2 },
+  { 0x04a7, 0x30a1 },
+  { 0x04a8, 0x30a3 },
+  { 0x04a9, 0x30a5 },
+  { 0x04aa, 0x30a7 },
+  { 0x04ab, 0x30a9 },
+  { 0x04ac, 0x30e3 },
+  { 0x04ad, 0x30e5 },
+  { 0x04ae, 0x30e7 },
+  { 0x04af, 0x30c3 },
+  { 0x04b0, 0x30fc },
+  { 0x04b1, 0x30a2 },
+  { 0x04b2, 0x30a4 },
+  { 0x04b3, 0x30a6 },
+  { 0x04b4, 0x30a8 },
+  { 0x04b5, 0x30aa },
+  { 0x04b6, 0x30ab },
+  { 0x04b7, 0x30ad },
+  { 0x04b8, 0x30af },
+  { 0x04b9, 0x30b1 },
+  { 0x04ba, 0x30b3 },
+  { 0x04bb, 0x30b5 },
+  { 0x04bc, 0x30b7 },
+  { 0x04bd, 0x30b9 },
+  { 0x04be, 0x30bb },
+  { 0x04bf, 0x30bd },
+  { 0x04c0, 0x30bf },
+  { 0x04c1, 0x30c1 },
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+  { 0x08a5, 0x2321 },
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+  { 0x08ab, 0x239b },
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+  { 0x08d6, 0x221a },
+  { 0x08da, 0x2282 },
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+  { 0x08dd, 0x222a },
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+  { 0x08df, 0x2228 },
+  { 0x08ef, 0x2202 },
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+  { 0x08fb, 0x2190 },
+  { 0x08fc, 0x2191 },
+  { 0x08fd, 0x2192 },
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+  { 0x09e2, 0x2409 },
+  { 0x09e3, 0x240c },
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+  { 0x09ec, 0x250c },
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+  { 0x09ee, 0x253c },
+  { 0x09ef, 0x23ba },
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+  { 0x09f1, 0x2500 },
+  { 0x09f2, 0x23bc },
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+  { 0x09f5, 0x2524 },
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+  { 0x0aa1, 0x2003 },
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+  { 0x0aa5, 0x2007 },
+  { 0x0aa6, 0x2008 },
+  { 0x0aa7, 0x2009 },
+  { 0x0aa8, 0x200a },
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+  { 0x0aaf, 0x2025 },
+  { 0x0ab0, 0x2153 },
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+  { 0x0ab2, 0x2155 },
+  { 0x0ab3, 0x2156 },
+  { 0x0ab4, 0x2157 },
+  { 0x0ab5, 0x2158 },
+  { 0x0ab6, 0x2159 },
+  { 0x0ab7, 0x215a },
+  { 0x0ab8, 0x2105 },
+  { 0x0abb, 0x2012 },
+  { 0x0abc, 0x2329 },
+  { 0x0abe, 0x232a },
+  { 0x0ac3, 0x215b },
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+  { 0x0ac5, 0x215d },
+  { 0x0ac6, 0x215e },
+  { 0x0ac9, 0x2122 },
+  { 0x0aca, 0x2613 },
+  { 0x0acc, 0x25c1 },
+  { 0x0acd, 0x25b7 },
+  { 0x0ace, 0x25cb },
+  { 0x0acf, 0x25af },
+  { 0x0ad0, 0x2018 },
+  { 0x0ad1, 0x2019 },
+  { 0x0ad2, 0x201c },
+  { 0x0ad3, 0x201d },
+  { 0x0ad4, 0x211e },
+  { 0x0ad6, 0x2032 },
+  { 0x0ad7, 0x2033 },
+  { 0x0ad9, 0x271d },
+  { 0x0adb, 0x25ac },
+  { 0x0adc, 0x25c0 },
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+  { 0x0ae5, 0x2606 },
+  { 0x0ae6, 0x2022 },
+  { 0x0ae7, 0x25aa },
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+  { 0x0ae9, 0x25bc },
+  { 0x0aea, 0x261c },
+  { 0x0aeb, 0x261e },
+  { 0x0aec, 0x2663 },
+  { 0x0aed, 0x2666 },
+  { 0x0aee, 0x2665 },
+  { 0x0af0, 0x2720 },
+  { 0x0af1, 0x2020 },
+  { 0x0af2, 0x2021 },
+  { 0x0af3, 0x2713 },
+  { 0x0af4, 0x2717 },
+  { 0x0af5, 0x266f },
+  { 0x0af6, 0x266d },
+  { 0x0af7, 0x2642 },
+  { 0x0af8, 0x2640 },
+  { 0x0af9, 0x260e },
+  { 0x0afa, 0x2315 },
+  { 0x0afb, 0x2117 },
+  { 0x0afc, 0x2038 },
+  { 0x0afd, 0x201a },
+  { 0x0afe, 0x201e },
+  { 0x0ba3, 0x003c },
+  { 0x0ba6, 0x003e },
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+  { 0x0bc0, 0x00af },
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+  { 0x0bc4, 0x230a },
+  { 0x0bc6, 0x005f },
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+  { 0x0bcc, 0x2395 },
+  { 0x0bce, 0x22a4 },
+  { 0x0bcf, 0x25cb },
+  { 0x0bd3, 0x2308 },
+  { 0x0bd6, 0x222a },
+  { 0x0bd8, 0x2283 },
+  { 0x0bda, 0x2282 },
+  { 0x0bdc, 0x22a2 },
+  { 0x0bfc, 0x22a3 },
+  { 0x0cdf, 0x2017 },
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+  { 0x0ced, 0x05dd },
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+  { 0x0cf6, 0x05e6 },
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+  { 0x0cfa, 0x05ea },
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+  { 0x0da5, 0x0e05 },
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+  { 0x0dae, 0x0e0e },
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+  { 0x0db0, 0x0e10 },
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+  { 0x0db2, 0x0e12 },
+  { 0x0db3, 0x0e13 },
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+  { 0x0db6, 0x0e16 },
+  { 0x0db7, 0x0e17 },
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+  { 0x0dba, 0x0e1a },
+  { 0x0dbb, 0x0e1b },
+  { 0x0dbc, 0x0e1c },
+  { 0x0dbd, 0x0e1d },
+  { 0x0dbe, 0x0e1e },
+  { 0x0dbf, 0x0e1f },
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+  { 0x0dc6, 0x0e26 },
+  { 0x0dc7, 0x0e27 },
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+  { 0x0dca, 0x0e2a },
+  { 0x0dcb, 0x0e2b },
+  { 0x0dcc, 0x0e2c },
+  { 0x0dcd, 0x0e2d },
+  { 0x0dce, 0x0e2e },
+  { 0x0dcf, 0x0e2f },
+  { 0x0dd0, 0x0e30 },
+  { 0x0dd1, 0x0e31 },
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+  { 0x0dd5, 0x0e35 },
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+  { 0x0dd9, 0x0e39 },
+  { 0x0dda, 0x0e3a },
+  { 0x0ddf, 0x0e3f },
+  { 0x0de0, 0x0e40 },
+  { 0x0de1, 0x0e41 },
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+  { 0x0de3, 0x0e43 },
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+  { 0x0de8, 0x0e48 },
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+  { 0x0dea, 0x0e4a },
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+  { 0x0ded, 0x0e4d },
+  { 0x0df0, 0x0e50 },
+  { 0x0df1, 0x0e51 },
+  { 0x0df2, 0x0e52 },
+  { 0x0df3, 0x0e53 },
+  { 0x0df4, 0x0e54 },
+  { 0x0df5, 0x0e55 },
+  { 0x0df6, 0x0e56 },
+  { 0x0df7, 0x0e57 },
+  { 0x0df8, 0x0e58 },
+  { 0x0df9, 0x0e59 },
+  { 0x0ea1, 0x3131 },
+  { 0x0ea2, 0x3132 },
+  { 0x0ea3, 0x3133 },
+  { 0x0ea4, 0x3134 },
+  { 0x0ea5, 0x3135 },
+  { 0x0ea6, 0x3136 },
+  { 0x0ea7, 0x3137 },
+  { 0x0ea8, 0x3138 },
+  { 0x0ea9, 0x3139 },
+  { 0x0eaa, 0x313a },
+  { 0x0eab, 0x313b },
+  { 0x0eac, 0x313c },
+  { 0x0ead, 0x313d },
+  { 0x0eae, 0x313e },
+  { 0x0eaf, 0x313f },
+  { 0x0eb0, 0x3140 },
+  { 0x0eb1, 0x3141 },
+  { 0x0eb2, 0x3142 },
+  { 0x0eb3, 0x3143 },
+  { 0x0eb4, 0x3144 },
+  { 0x0eb5, 0x3145 },
+  { 0x0eb6, 0x3146 },
+  { 0x0eb7, 0x3147 },
+  { 0x0eb8, 0x3148 },
+  { 0x0eb9, 0x3149 },
+  { 0x0eba, 0x314a },
+  { 0x0ebb, 0x314b },
+  { 0x0ebc, 0x314c },
+  { 0x0ebd, 0x314d },
+  { 0x0ebe, 0x314e },
+  { 0x0ebf, 0x314f },
+  { 0x0ec0, 0x3150 },
+  { 0x0ec1, 0x3151 },
+  { 0x0ec2, 0x3152 },
+  { 0x0ec3, 0x3153 },
+  { 0x0ec4, 0x3154 },
+  { 0x0ec5, 0x3155 },
+  { 0x0ec6, 0x3156 },
+  { 0x0ec7, 0x3157 },
+  { 0x0ec8, 0x3158 },
+  { 0x0ec9, 0x3159 },
+  { 0x0eca, 0x315a },
+  { 0x0ecb, 0x315b },
+  { 0x0ecc, 0x315c },
+  { 0x0ecd, 0x315d },
+  { 0x0ece, 0x315e },
+  { 0x0ecf, 0x315f },
+  { 0x0ed0, 0x3160 },
+  { 0x0ed1, 0x3161 },
+  { 0x0ed2, 0x3162 },
+  { 0x0ed3, 0x3163 },
+  { 0x0ed4, 0x11a8 },
+  { 0x0ed5, 0x11a9 },
+  { 0x0ed6, 0x11aa },
+  { 0x0ed7, 0x11ab },
+  { 0x0ed8, 0x11ac },
+  { 0x0ed9, 0x11ad },
+  { 0x0eda, 0x11ae },
+  { 0x0edb, 0x11af },
+  { 0x0edc, 0x11b0 },
+  { 0x0edd, 0x11b1 },
+  { 0x0ede, 0x11b2 },
+  { 0x0edf, 0x11b3 },
+  { 0x0ee0, 0x11b4 },
+  { 0x0ee1, 0x11b5 },
+  { 0x0ee2, 0x11b6 },
+  { 0x0ee3, 0x11b7 },
+  { 0x0ee4, 0x11b8 },
+  { 0x0ee5, 0x11b9 },
+  { 0x0ee6, 0x11ba },
+  { 0x0ee7, 0x11bb },
+  { 0x0ee8, 0x11bc },
+  { 0x0ee9, 0x11bd },
+  { 0x0eea, 0x11be },
+  { 0x0eeb, 0x11bf },
+  { 0x0eec, 0x11c0 },
+  { 0x0eed, 0x11c1 },
+  { 0x0eee, 0x11c2 },
+  { 0x0eef, 0x316d },
+  { 0x0ef0, 0x3171 },
+  { 0x0ef1, 0x3178 },
+  { 0x0ef2, 0x317f },
+  { 0x0ef3, 0x3181 },
+  { 0x0ef4, 0x3184 },
+  { 0x0ef5, 0x3186 },
+  { 0x0ef6, 0x318d },
+  { 0x0ef7, 0x318e },
+  { 0x0ef8, 0x11eb },
+  { 0x0ef9, 0x11f0 },
+  { 0x0efa, 0x11f9 },
+  { 0x0eff, 0x20a9 },
+  { 0x13a4, 0x20ac },
+  { 0x13bc, 0x0152 },
+  { 0x13bd, 0x0153 },
+  { 0x13be, 0x0178 },
+  { 0x20ac, 0x20ac },
+  { 0xfe50,    '`' },
+  { 0xfe51, 0x00b4 },
+  { 0xfe52,    '^' },
+  { 0xfe53,    '~' },
+  { 0xfe54, 0x00af },
+  { 0xfe55, 0x02d8 },
+  { 0xfe56, 0x02d9 },
+  { 0xfe57, 0x00a8 },
+  { 0xfe58, 0x02da },
+  { 0xfe59, 0x02dd },
+  { 0xfe5a, 0x02c7 },
+  { 0xfe5b, 0x00b8 },
+  { 0xfe5c, 0x02db },
+  { 0xfe5d, 0x037a },
+  { 0xfe5e, 0x309b },
+  { 0xfe5f, 0x309c },
+  { 0xfe63,    '/' },
+  { 0xfe64, 0x02bc },
+  { 0xfe65, 0x02bd },
+  { 0xfe66, 0x02f5 },
+  { 0xfe67, 0x02f3 },
+  { 0xfe68, 0x02cd },
+  { 0xfe69, 0xa788 },
+  { 0xfe6a, 0x02f7 },
+  { 0xfe6e,    ',' },
+  { 0xfe6f, 0x00a4 },
+  { 0xfe80,    'a' }, // XK_dead_a
+  { 0xfe81,    'A' }, // XK_dead_A
+  { 0xfe82,    'e' }, // XK_dead_e
+  { 0xfe83,    'E' }, // XK_dead_E
+  { 0xfe84,    'i' }, // XK_dead_i
+  { 0xfe85,    'I' }, // XK_dead_I
+  { 0xfe86,    'o' }, // XK_dead_o
+  { 0xfe87,    'O' }, // XK_dead_O
+  { 0xfe88,    'u' }, // XK_dead_u
+  { 0xfe89,    'U' }, // XK_dead_U
+  { 0xfe8a, 0x0259 },
+  { 0xfe8b, 0x018f },
+  { 0xfe8c, 0x00b5 },
+  { 0xfe90,    '_' },
+  { 0xfe91, 0x02c8 },
+  { 0xfe92, 0x02cc },
+  { 0xff80 /*XKB_KEY_KP_Space*/,     ' ' },
+  { 0xff95 /*XKB_KEY_KP_7*/, 0x0037 },
+  { 0xff96 /*XKB_KEY_KP_4*/, 0x0034 },
+  { 0xff97 /*XKB_KEY_KP_8*/, 0x0038 },
+  { 0xff98 /*XKB_KEY_KP_6*/, 0x0036 },
+  { 0xff99 /*XKB_KEY_KP_2*/, 0x0032 },
+  { 0xff9a /*XKB_KEY_KP_9*/, 0x0039 },
+  { 0xff9b /*XKB_KEY_KP_3*/, 0x0033 },
+  { 0xff9c /*XKB_KEY_KP_1*/, 0x0031 },
+  { 0xff9d /*XKB_KEY_KP_5*/, 0x0035 },
+  { 0xff9e /*XKB_KEY_KP_0*/, 0x0030 },
+  { 0xffaa /*XKB_KEY_KP_Multiply*/,  '*' },
+  { 0xffab /*XKB_KEY_KP_Add*/,       '+' },
+  { 0xffac /*XKB_KEY_KP_Separator*/, ',' },
+  { 0xffad /*XKB_KEY_KP_Subtract*/,  '-' },
+  { 0xffae /*XKB_KEY_KP_Decimal*/,   '.' },
+  { 0xffaf /*XKB_KEY_KP_Divide*/,    '/' },
+  { 0xffb0 /*XKB_KEY_KP_0*/, 0x0030 },
+  { 0xffb1 /*XKB_KEY_KP_1*/, 0x0031 },
+  { 0xffb2 /*XKB_KEY_KP_2*/, 0x0032 },
+  { 0xffb3 /*XKB_KEY_KP_3*/, 0x0033 },
+  { 0xffb4 /*XKB_KEY_KP_4*/, 0x0034 },
+  { 0xffb5 /*XKB_KEY_KP_5*/, 0x0035 },
+  { 0xffb6 /*XKB_KEY_KP_6*/, 0x0036 },
+  { 0xffb7 /*XKB_KEY_KP_7*/, 0x0037 },
+  { 0xffb8 /*XKB_KEY_KP_8*/, 0x0038 },
+  { 0xffb9 /*XKB_KEY_KP_9*/, 0x0039 },
+  { 0xffbd /*XKB_KEY_KP_Equal*/,     '=' }
+};
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Convert XKB KeySym to Unicode
+//
+uint32_t _glfwKeySym2Unicode(unsigned int keysym)
+{
+    int min = 0;
+    int max = sizeof(keysymtab) / sizeof(struct codepair) - 1;
+    int mid;
+
+    // First check for Latin-1 characters (1:1 mapping)
+    if ((keysym >= 0x0020 && keysym <= 0x007e) ||
+        (keysym >= 0x00a0 && keysym <= 0x00ff))
+    {
+        return keysym;
+    }
+
+    // Also check for directly encoded 24-bit UCS characters
+    if ((keysym & 0xff000000) == 0x01000000)
+        return keysym & 0x00ffffff;
+
+    // Binary search in table
+    while (max >= min)
+    {
+        mid = (min + max) / 2;
+        if (keysymtab[mid].keysym < keysym)
+            min = mid + 1;
+        else if (keysymtab[mid].keysym > keysym)
+            max = mid - 1;
+        else
+            return keysymtab[mid].ucs;
+    }
+
+    // No matching Unicode value found
+    return GLFW_INVALID_CODEPOINT;
+}
+
+#endif // _GLFW_WAYLAND or _GLFW_X11
+
diff --git a/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/xkb_unicode.h b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/xkb_unicode.h
new file mode 100644
index 000000000000..d52748ac2b0e
--- /dev/null
+++ b/Basic_viewer/include/CGAL/GLFW/vendor/glfw/src/xkb_unicode.h
@@ -0,0 +1,30 @@
+//========================================================================
+// GLFW 3.5 Linux - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define GLFW_INVALID_CODEPOINT 0xffffffffu
+
+uint32_t _glfwKeySym2Unicode(unsigned int keysym);
+
diff --git a/Basic_viewer/include/CGAL/Graphics_scene.h b/Basic_viewer/include/CGAL/Graphics_scene.h
index 155a471b217d..10f3788e501a 100644
--- a/Basic_viewer/include/CGAL/Graphics_scene.h
+++ b/Basic_viewer/include/CGAL/Graphics_scene.h
@@ -64,64 +64,82 @@ class Graphics_scene
   typedef Local_kernel::Vector_3 Local_vector;
 
   Graphics_scene()
-      : m_buffer_for_mono_points(&arrays[POS_MONO_POINTS], nullptr,
-                                 &m_bounding_box, nullptr, nullptr, nullptr),
-        m_buffer_for_colored_points(&arrays[POS_COLORED_POINTS], nullptr,
-                                    &m_bounding_box, &arrays[COLOR_POINTS],
-                                    nullptr, nullptr),
-        m_buffer_for_mono_segments(&arrays[POS_MONO_SEGMENTS], nullptr,
-                                   &m_bounding_box, nullptr, nullptr, nullptr),
-        m_buffer_for_colored_segments(&arrays[POS_COLORED_SEGMENTS], nullptr,
-                                      &m_bounding_box, &arrays[COLOR_SEGMENTS],
-                                      nullptr, nullptr),
-        m_buffer_for_mono_rays(&arrays[POS_MONO_RAYS], nullptr, &m_bounding_box,
-                               nullptr, nullptr),
-        m_buffer_for_colored_rays(&arrays[POS_COLORED_RAYS], nullptr,
-                                  &m_bounding_box, &arrays[COLOR_RAYS], nullptr,
-                                  nullptr),
-        m_buffer_for_mono_lines(&arrays[POS_MONO_RAYS], nullptr,
-                                &m_bounding_box, nullptr, nullptr),
-        m_buffer_for_colored_lines(&arrays[POS_COLORED_LINES], nullptr,
-                                   &m_bounding_box, &arrays[COLOR_LINES],
-                                   nullptr, nullptr),
-        m_buffer_for_mono_faces(
-            &arrays[POS_MONO_FACES], nullptr, &m_bounding_box, nullptr,
-            &arrays[FLAT_NORMAL_MONO_FACES], &arrays[SMOOTH_NORMAL_MONO_FACES]),
-        m_buffer_for_colored_faces(&arrays[POS_COLORED_FACES], nullptr,
-                                   &m_bounding_box, &arrays[COLOR_FACES],
-                                   &arrays[FLAT_NORMAL_COLORED_FACES],
-                                   &arrays[SMOOTH_NORMAL_COLORED_FACES])
+      : m_buffer_for_points(&arrays[POS_POINTS], nullptr,
+                            &m_bounding_box, &arrays[COLOR_POINTS]),
+        m_buffer_for_segments(&arrays[POS_SEGMENTS], nullptr,
+                              &m_bounding_box, &arrays[COLOR_SEGMENTS]),
+        m_buffer_for_rays(&arrays[POS_RAYS], nullptr, &m_bounding_box,
+                          &arrays[COLOR_RAYS]),
+        m_buffer_for_lines(&arrays[POS_RAYS], nullptr,
+                           &m_bounding_box, &arrays[COLOR_LINES]),
+        m_buffer_for_faces(&arrays[POS_FACES], nullptr, &m_bounding_box, &arrays[COLOR_FACES],
+                           &arrays[FLAT_NORMAL_FACES], &arrays[SMOOTH_NORMAL_FACES]),
+        m_default_color_face(60, 60, 200),
+        m_default_color_point(200, 60, 60),
+        m_default_color_segment(0, 0, 0),
+        m_default_color_ray(0, 0, 0),
+        m_default_color_line(0, 0, 0)
   {}
 
-  const Buffer_for_vao &get_buffer_for_mono_points() const
-  { return m_buffer_for_mono_points; }
+  inline 
+  const CGAL::IO::Color &get_default_color_face() const 
+  { return m_default_color_face; }
 
-  const Buffer_for_vao &get_buffer_for_colored_points() const
-  { return m_buffer_for_colored_points; }
+  inline 
+  const CGAL::IO::Color &get_default_color_point() const 
+  { return m_default_color_point; }
 
-  const Buffer_for_vao &get_buffer_for_mono_segments() const
-  { return m_buffer_for_mono_segments; }
+  inline 
+  const CGAL::IO::Color &get_default_color_segment() const 
+  { return m_default_color_segment; }
 
-  const Buffer_for_vao &get_buffer_for_colored_segments() const
-  { return m_buffer_for_colored_segments; }
+  inline 
+  const CGAL::IO::Color &get_default_color_ray() const 
+  { return m_default_color_ray; }
 
-  const Buffer_for_vao &get_buffer_for_mono_rays() const
-  { return m_buffer_for_mono_rays; }
+  inline 
+  const CGAL::IO::Color &get_default_color_line() const 
+  { return m_default_color_line; }
 
-  const Buffer_for_vao &get_buffer_for_colored_rays() const
-  { return m_buffer_for_colored_rays; }
+  inline
+  const Buffer_for_vao &get_buffer_for_points() const
+  { return m_buffer_for_points; }
 
-  const Buffer_for_vao &get_buffer_for_mono_lines() const
-  { return m_buffer_for_mono_lines; }
+  inline 
+  void set_default_color_face(const CGAL::IO::Color& c)  
+  { m_default_color_face = c; }
 
-  const Buffer_for_vao &get_buffer_for_colored_lines() const
-  { return m_buffer_for_colored_lines; }
+  inline 
+  void set_default_color_point(const CGAL::IO::Color& c)  
+  { m_default_color_point = c; }
 
-  const Buffer_for_vao &get_buffer_for_mono_faces() const
-  { return m_buffer_for_mono_faces; }
+  inline 
+  void set_default_color_segment(const CGAL::IO::Color& c)  
+  { m_default_color_segment = c; }
 
-  const Buffer_for_vao &get_buffer_for_colored_faces() const
-  { return m_buffer_for_colored_faces; }
+  inline 
+  void set_default_color_ray(const CGAL::IO::Color& c)  
+  { m_default_color_ray = c; }
+
+  inline 
+  void set_default_color_line(const CGAL::IO::Color& c)  
+  { m_default_color_line = c; }
+
+  inline
+  const Buffer_for_vao &get_buffer_for_segments() const
+  { return m_buffer_for_segments; }
+
+  inline
+  const Buffer_for_vao &get_buffer_for_rays() const
+  { return m_buffer_for_rays; }
+
+  inline
+  const Buffer_for_vao &get_buffer_for_lines() const
+  { return m_buffer_for_lines; }
+
+  inline
+  const Buffer_for_vao &get_buffer_for_faces() const
+  { return m_buffer_for_faces; }
 
   const CGAL::Bbox_3 &bounding_box() const { return m_bounding_box; }
 
@@ -159,31 +177,30 @@ class Graphics_scene
 
   void reverse_all_normals() const
   {
-    m_buffer_for_mono_faces.negate_normals();
-    m_buffer_for_colored_faces.negate_normals();
+    m_buffer_for_faces.negate_normals();
   }
 
   template <typename KPoint> void add_point(const KPoint &p)
-  { m_buffer_for_mono_points.add_point(p); }
+  { m_buffer_for_points.add_point(p, m_default_color_point); }
 
   template <typename KPoint>
   void add_point(const KPoint &p, const CGAL::IO::Color &acolor)
-  { m_buffer_for_colored_points.add_point(p, acolor); }
+  { m_buffer_for_points.add_point(p, acolor); }
 
   template <typename KPoint>
   void add_segment(const KPoint &p1, const KPoint &p2)
-  { m_buffer_for_mono_segments.add_segment(p1, p2); }
+  { m_buffer_for_segments.add_segment(p1, p2, m_default_color_segment); }
 
   template <typename KPoint>
   void add_segment(const KPoint &p1, const KPoint &p2,
                    const CGAL::IO::Color &acolor)
-  { m_buffer_for_colored_segments.add_segment(p1, p2, acolor); }
+  { m_buffer_for_segments.add_segment(p1, p2, acolor); }
 
   template <typename KPoint, typename KVector>
   void add_ray(const KPoint &p, const KVector &v)
   {
     double bigNumber = 1e30;
-    m_buffer_for_mono_rays.add_ray_segment(p, (p + (bigNumber)*v));
+    m_buffer_for_rays.add_ray_segment(p, (p + (bigNumber)*v), m_default_color_ray);
   }
 
   template <typename KPoint, typename KVector>
@@ -191,15 +208,15 @@ class Graphics_scene
                const CGAL::IO::Color &acolor)
   {
     double bigNumber = 1e30;
-    m_buffer_for_colored_rays.add_ray_segment(p, (p + (bigNumber)*v), acolor);
+    m_buffer_for_rays.add_ray_segment(p, (p + (bigNumber)*v), acolor);
   }
 
   template <typename KPoint, typename KVector>
   void add_line(const KPoint &p, const KVector &v)
   {
     double bigNumber = 1e30;
-    m_buffer_for_mono_lines.add_line_segment((p - (bigNumber)*v),
-                                             (p + (bigNumber)*v));
+    m_buffer_for_lines.add_line_segment((p - (bigNumber)*v),
+                                             (p + (bigNumber)*v), m_default_color_line);
   }
 
   template <typename KPoint, typename KVector>
@@ -207,33 +224,28 @@ class Graphics_scene
                 const CGAL::IO::Color &acolor)
   {
     double bigNumber = 1e30;
-    m_buffer_for_colored_lines.add_line_segment((p - (bigNumber)*v),
+    m_buffer_for_lines.add_line_segment((p - (bigNumber)*v),
                                                 (p + (bigNumber)*v), acolor);
   }
 
   template <typename KPoint> bool add_point_in_face(const KPoint &kp)
   {
-    if (m_buffer_for_mono_faces.is_a_face_started())
-    { return m_buffer_for_mono_faces.add_point_in_face(kp); }
-    else if (m_buffer_for_colored_faces.is_a_face_started())
-    { return m_buffer_for_colored_faces.add_point_in_face(kp); }
+    if (m_buffer_for_faces.is_a_face_started())
+    { return m_buffer_for_faces.add_point_in_face(kp); }
     return false;
   }
 
   template <typename KPoint, typename KVector>
   bool add_point_in_face(const KPoint &kp, const KVector &p_normal)
   {
-    if (m_buffer_for_mono_faces.is_a_face_started())
-    { return m_buffer_for_mono_faces.add_point_in_face(kp, p_normal); }
-    else if (m_buffer_for_colored_faces.is_a_face_started())
-    { return m_buffer_for_colored_faces.add_point_in_face(kp, p_normal); }
+    if (m_buffer_for_faces.is_a_face_started())
+    { return m_buffer_for_faces.add_point_in_face(kp, p_normal); }
     return false;
   }
 
   bool a_face_started() const
   {
-    return m_buffer_for_mono_faces.is_a_face_started() ||
-           m_buffer_for_colored_faces.is_a_face_started();
+    return m_buffer_for_faces.is_a_face_started();
   }
 
   void face_begin()
@@ -245,7 +257,7 @@ class Graphics_scene
           << std::endl;
     }
     else
-    { m_buffer_for_mono_faces.face_begin(); }
+    { m_buffer_for_faces.face_begin(m_default_color_face); }
   }
 
   void face_begin(const CGAL::IO::Color &acolor)
@@ -257,15 +269,13 @@ class Graphics_scene
           << std::endl;
     }
     else
-    { m_buffer_for_colored_faces.face_begin(acolor); }
+    { m_buffer_for_faces.face_begin(acolor); }
   }
 
   void face_end()
   {
-    if (m_buffer_for_mono_faces.is_a_face_started())
-    { m_buffer_for_mono_faces.face_end(); }
-    else if (m_buffer_for_colored_faces.is_a_face_started())
-    { m_buffer_for_colored_faces.face_end(); }
+    if (m_buffer_for_faces.is_a_face_started())
+    { m_buffer_for_faces.face_end(); }
   }
 
   template <typename KPoint>
@@ -281,58 +291,38 @@ class Graphics_scene
 
   bool empty() const
   {
-    return (m_buffer_for_mono_points.is_empty() &&
-            m_buffer_for_colored_points.is_empty() &&
-            m_buffer_for_mono_segments.is_empty() &&
-            m_buffer_for_colored_segments.is_empty() &&
-            m_buffer_for_mono_rays.is_empty() &&
-            m_buffer_for_colored_rays.is_empty() &&
-            m_buffer_for_mono_lines.is_empty() &&
-            m_buffer_for_colored_lines.is_empty() &&
-            m_buffer_for_mono_faces.is_empty() &&
-            m_buffer_for_colored_faces.is_empty());
+    return (m_buffer_for_points.is_empty() &&
+            m_buffer_for_segments.is_empty() &&
+            m_buffer_for_rays.is_empty() &&
+            m_buffer_for_lines.is_empty() &&
+            m_buffer_for_faces.is_empty());
   }
 
   bool has_zero_x() const
   {
-    return m_buffer_for_mono_points.has_zero_x() &&
-           m_buffer_for_colored_points.has_zero_x() &&
-           m_buffer_for_mono_segments.has_zero_x() &&
-           m_buffer_for_colored_segments.has_zero_x() &&
-           m_buffer_for_mono_faces.has_zero_x() &&
-           m_buffer_for_colored_faces.has_zero_x() &&
-           m_buffer_for_mono_rays.has_zero_x() &&
-           m_buffer_for_colored_rays.has_zero_x() &&
-           m_buffer_for_mono_lines.has_zero_x() &&
-           m_buffer_for_colored_lines.has_zero_x();
+    return m_buffer_for_points.has_zero_x() &&
+           m_buffer_for_segments.has_zero_x() &&
+           m_buffer_for_faces.has_zero_x() &&
+           m_buffer_for_rays.has_zero_x() &&
+           m_buffer_for_lines.has_zero_x();
   }
 
   bool has_zero_y() const
   {
-    return m_buffer_for_mono_points.has_zero_y() &&
-           m_buffer_for_colored_points.has_zero_y() &&
-           m_buffer_for_mono_segments.has_zero_y() &&
-           m_buffer_for_colored_segments.has_zero_y() &&
-           m_buffer_for_mono_faces.has_zero_y() &&
-           m_buffer_for_colored_faces.has_zero_y() &&
-           m_buffer_for_mono_rays.has_zero_y() &&
-           m_buffer_for_colored_rays.has_zero_y() &&
-           m_buffer_for_mono_lines.has_zero_y() &&
-           m_buffer_for_colored_lines.has_zero_y();
+    return m_buffer_for_points.has_zero_y() &&
+           m_buffer_for_segments.has_zero_y() &&
+           m_buffer_for_faces.has_zero_y() &&
+           m_buffer_for_rays.has_zero_y() &&
+           m_buffer_for_lines.has_zero_y();
   }
 
   bool has_zero_z() const
   {
-    return m_buffer_for_mono_points.has_zero_z() &&
-           m_buffer_for_colored_points.has_zero_z() &&
-           m_buffer_for_mono_segments.has_zero_z() &&
-           m_buffer_for_colored_segments.has_zero_z() &&
-           m_buffer_for_mono_faces.has_zero_z() &&
-           m_buffer_for_colored_faces.has_zero_z() &&
-           m_buffer_for_mono_rays.has_zero_z() &&
-           m_buffer_for_colored_rays.has_zero_z() &&
-           m_buffer_for_mono_lines.has_zero_z() &&
-           m_buffer_for_colored_lines.has_zero_z();
+    return m_buffer_for_points.has_zero_z() &&
+           m_buffer_for_segments.has_zero_z() &&
+           m_buffer_for_faces.has_zero_z() &&
+           m_buffer_for_rays.has_zero_z() &&
+           m_buffer_for_lines.has_zero_z();
   }
 
   // Returns true if the data structure lies on a XY or XZ or YZ plane
@@ -343,16 +333,11 @@ class Graphics_scene
 
   void clear()
   {
-    m_buffer_for_mono_points.clear();
-    m_buffer_for_colored_points.clear();
-    m_buffer_for_mono_segments.clear();
-    m_buffer_for_colored_segments.clear();
-    m_buffer_for_mono_rays.clear();
-    m_buffer_for_colored_rays.clear();
-    m_buffer_for_mono_lines.clear();
-    m_buffer_for_colored_lines.clear();
-    m_buffer_for_mono_faces.clear();
-    m_buffer_for_colored_faces.clear();
+    m_buffer_for_points.clear();
+    m_buffer_for_segments.clear();
+    m_buffer_for_rays.clear();
+    m_buffer_for_lines.clear();
+    m_buffer_for_faces.clear();
     m_texts.clear();
     m_bounding_box=CGAL::Bbox_3();
   }
@@ -385,16 +370,11 @@ class Graphics_scene
   // vectors.
   enum Buffers {
     BEGIN_POS = 0,
-    POS_MONO_POINTS = BEGIN_POS,
-    POS_COLORED_POINTS,
-    POS_MONO_SEGMENTS,
-    POS_COLORED_SEGMENTS,
-    POS_MONO_RAYS,
-    POS_COLORED_RAYS,
-    POS_MONO_LINES,
-    POS_COLORED_LINES,
-    POS_MONO_FACES,
-    POS_COLORED_FACES,
+    POS_POINTS = BEGIN_POS,
+    POS_SEGMENTS,
+    POS_RAYS,
+    POS_LINES,
+    POS_FACES,
     END_POS,
     BEGIN_COLOR = END_POS,
     COLOR_POINTS = BEGIN_COLOR,
@@ -404,25 +384,24 @@ class Graphics_scene
     COLOR_FACES,
     END_COLOR,
     BEGIN_NORMAL = END_COLOR,
-    SMOOTH_NORMAL_MONO_FACES = BEGIN_NORMAL,
-    FLAT_NORMAL_MONO_FACES,
-    SMOOTH_NORMAL_COLORED_FACES,
-    FLAT_NORMAL_COLORED_FACES,
+    SMOOTH_NORMAL_FACES = BEGIN_NORMAL,
+    FLAT_NORMAL_FACES,
     END_NORMAL,
     LAST_INDEX = END_NORMAL
   };
 
 protected:
-  Buffer_for_vao m_buffer_for_mono_points;
-  Buffer_for_vao m_buffer_for_colored_points;
-  Buffer_for_vao m_buffer_for_mono_segments;
-  Buffer_for_vao m_buffer_for_colored_segments;
-  Buffer_for_vao m_buffer_for_mono_rays;
-  Buffer_for_vao m_buffer_for_colored_rays;
-  Buffer_for_vao m_buffer_for_mono_lines;
-  Buffer_for_vao m_buffer_for_colored_lines;
-  Buffer_for_vao m_buffer_for_mono_faces;
-  Buffer_for_vao m_buffer_for_colored_faces;
+  Buffer_for_vao m_buffer_for_points;
+  Buffer_for_vao m_buffer_for_segments;
+  Buffer_for_vao m_buffer_for_rays;
+  Buffer_for_vao m_buffer_for_lines;
+  Buffer_for_vao m_buffer_for_faces;
+
+  CGAL::IO::Color m_default_color_face;
+  CGAL::IO::Color m_default_color_point;
+  CGAL::IO::Color m_default_color_segment;
+  CGAL::IO::Color m_default_color_ray;
+  CGAL::IO::Color m_default_color_line;
 
   std::vector<std::tuple<Local_point, std::string>> m_texts;
 
diff --git a/Basic_viewer/include/CGAL/Qt/Basic_viewer.h b/Basic_viewer/include/CGAL/Qt/Basic_viewer.h
index 20ef729341d1..6ae33f2aaf6b 100644
--- a/Basic_viewer/include/CGAL/Qt/Basic_viewer.h
+++ b/Basic_viewer/include/CGAL/Qt/Basic_viewer.h
@@ -21,8 +21,6 @@
 #include <string>
 #include <CGAL/Graphics_scene.h>
 
-#ifdef CGAL_USE_BASIC_VIEWER
-
 #ifdef __GNUC__
 #if  __GNUC__ >= 9
 #  pragma GCC diagnostic push
@@ -35,7 +33,6 @@
 
 #include <CGAL/Qt/qglviewer.h>
 #include <CGAL/Qt/manipulatedFrame.h>
-#include <QKeyEvent>
 #include <QOpenGLVertexArrayObject>
 #include <QOpenGLBuffer>
 #include <QOpenGLShaderProgram>
@@ -78,33 +75,38 @@ class Basic_viewer : public CGAL::QGLViewer
                bool draw_vertices=false,
                bool draw_edges=true,
                bool draw_faces=true,
-               bool use_mono_color=false,
+               bool use_default_color=false,
                bool inverse_normal=false,
                bool draw_rays=true,
                bool draw_lines=true,
                bool draw_text=true,
                bool no_2D_mode=false) :
     CGAL::QGLViewer(parent),
-    gBuffer(buf),
+    m_scene(buf),
     m_draw_vertices(draw_vertices),
     m_draw_edges(draw_edges),
     m_draw_rays(draw_rays),
     m_draw_lines(draw_lines),
     m_draw_faces(draw_faces),
-    m_flatShading(true),
-    m_use_mono_color(use_mono_color),
-    m_inverse_normal(inverse_normal),
     m_draw_text(draw_text),
+    m_draw_normals(false),
+    m_draw_cylinder_edge(false),
+    m_draw_sphere_vertex(false),
+    m_draw_mesh_triangles(false),
+    m_geometry_feature_enabled(true),
+    m_flat_shading(true),
+    m_use_default_color(use_default_color),
+    m_use_default_color_normal(false),
+    m_display_face_normal(false),
+    m_inverse_normal(inverse_normal),
     m_no_2D_mode(no_2D_mode),
-    m_size_points(7.),
-    m_size_edges(3.1),
-    m_size_rays(3.1),
-    m_size_lines(3.1),
-    m_vertices_mono_color(200, 60, 60),
-    m_edges_mono_color(0, 0, 0),
-    m_rays_mono_color(0, 0, 0),
-    m_lines_mono_color(0, 0, 0),
-    m_faces_mono_color(60, 60, 200),
+    m_size_vertices(1.0),
+    m_size_edges(1.0),
+    m_size_rays(1.0),
+    m_size_lines(1.0),
+    m_size_normals(0.2),
+    m_height_factor_normals(0.02),
+    m_default_color_normal(220, 60, 20),
     m_ambient_color(0.6f, 0.5f, 0.5f, 0.5f),
     m_are_buffers_initialized(false)
   {
@@ -129,6 +131,13 @@ class Basic_viewer : public CGAL::QGLViewer
     setKeyDescription(::Qt::Key_PageDown, "Increase light (all colors, use shift/alt/ctrl for one rgb component)");
     setKeyDescription(::Qt::Key_PageUp, "Decrease light (all colors, use shift/alt/ctrl for one rgb component)");
     setKeyDescription(::Qt::Key_O, "Toggles 2D mode only");
+    setKeyDescription(::Qt::ControlModifier, ::Qt::Key_V, "Toggle vertices display as sphere");
+    setKeyDescription(::Qt::ControlModifier, ::Qt::Key_E, "Toggle edges display as cylinder");
+    setKeyDescription(::Qt::ControlModifier, ::Qt::Key_N, "Toggle normals display");
+    setKeyDescription(::Qt::ShiftModifier, ::Qt::Key_N, "Toggle face/vertex normals for normal display");
+    setKeyDescription(::Qt::ControlModifier, ::Qt::Key_M, "Toggle normals mono color");
+    setKeyDescription(::Qt::ControlModifier, ::Qt::Key_T, "Toggle triangles display");
+    setKeyDescription(::Qt::Key_F2, "Take a screenshot");
 
     // Add custom mouse description
     setMouseBindingDescription(::Qt::Key_C, ::Qt::ControlModifier, ::Qt::LeftButton,
@@ -152,7 +161,7 @@ class Basic_viewer : public CGAL::QGLViewer
       setWindowTitle("CGAL Basic Viewer");
     else
       setWindowTitle(title);
-
+    
     resize(CGAL_BASIC_VIEWER_INIT_SIZE_X, CGAL_BASIC_VIEWER_INIT_SIZE_Y);
 
     if (inverse_normal)
@@ -170,81 +179,103 @@ class Basic_viewer : public CGAL::QGLViewer
 
     Q_FOREACH(QOpenGLShader* shader, rendering_program_p_l.shaders())
       delete shader;
+    Q_FOREACH(QOpenGLShader* shader, rendering_program_line.shaders())
+      delete shader;
     Q_FOREACH(QOpenGLShader* shader, rendering_program_face.shaders())
       delete shader;
     Q_FOREACH(QOpenGLShader* shader, rendering_program_clipping_plane.shaders())
       delete shader;
+    Q_FOREACH(QOpenGLShader* shader, rendering_program_sphere.shaders())
+      delete shader;
+    Q_FOREACH(QOpenGLShader* shader, rendering_program_cylinder.shaders())
+      delete shader;
+    Q_FOREACH(QOpenGLShader* shader, rendering_program_normal.shaders())
+      delete shader;
+    Q_FOREACH(QOpenGLShader* shader, rendering_program_triangle.shaders())
+      delete shader;
     delete m_frame_plane;
   }
 
-  void draw_vertices(bool b)
+  /*****SETTERS*****/
+
+  inline void size_vertices(float s)
+  { m_size_vertices = s; }
+  inline void size_edges(float s)
+  { m_size_edges = s; }
+  inline void size_rays(float s)
+  { m_size_rays = s; }
+  inline void size_lines(float s)
+  { m_size_lines = s; }
+
+  inline void draw_vertices(bool b)
   { m_draw_vertices = b; }
-  void draw_edges(bool b)
+  inline void draw_edges(bool b)
   { m_draw_edges = b; }
-  void draw_rays(bool b)
+  inline void draw_rays(bool b)
   { m_draw_rays = b; }
-  void draw_lines(bool b)
+  inline void draw_lines(bool b)
   { m_draw_lines = b; }
-  void draw_faces(bool b)
+  inline void draw_faces(bool b)
   { m_draw_faces = b; }
-  void use_mono_color(bool b)
-  { m_use_mono_color = b; }
-  void draw_text(bool b)
+  inline void draw_text(bool b)
   { m_draw_text = b; }
-
-  void vertices_mono_color(const CGAL::IO::Color& c)
-  { m_vertices_mono_color=c; }
-  void edges_mono_color(const CGAL::IO::Color& c)
-  { m_edges_mono_color=c; }
-  void rays_mono_color(const CGAL::IO::Color& c)
-  { m_rays_mono_color=c; }
-  void lines_mono_color(const CGAL::IO::Color& c)
-  { m_lines_mono_color=c; }
-  void faces_mono_color(const CGAL::IO::Color& c)
-  { m_faces_mono_color=c; }
-
-  void toggle_draw_vertices()
+  inline void draw_mesh_triangles(bool b)
+  { m_draw_mesh_triangles = b; } 
+
+  inline void use_default_color(bool b)
+  { m_use_default_color = b; }
+  inline void use_default_color_normal(bool b)
+  { m_use_default_color_normal = b; }
+  inline void flat_shading(bool b)
+  { m_flat_shading = b; }
+  inline void reverse_normal(bool b) 
+  { m_inverse_normal = b; }
+  inline void default_color_normals(const CGAL::IO::Color& c) 
+  { m_default_color_normal = c; }
+  inline void normal_height_factor(float h) 
+  { m_height_factor_normals = h; }
+
+  inline void toggle_draw_vertices()
   { m_draw_vertices = !m_draw_vertices; }
-  void toggle_draw_edges()
+  inline void toggle_draw_edges()
   { m_draw_edges = !m_draw_edges; }
-  void toggle_draw_rays()
+  inline void toggle_draw_rays()
   { m_draw_rays = !m_draw_rays; }
-  void toggle_draw_lines()
+  inline void toggle_draw_lines()
   { m_draw_lines = !m_draw_lines; }
-  void toggle_draw_faces()
+  inline void toggle_draw_faces()
   { m_draw_faces = !m_draw_faces; }
-  void toggle_use_mono_color()
-  { m_use_mono_color = !m_use_mono_color; }
-  void toggle_draw_text()
+  inline void toggle_draw_text()
   { m_draw_text = !m_draw_text; }
-
-  bool draw_vertices() const
+  inline void toggle_use_default_color()
+  { m_use_default_color = !m_use_default_color; }
+  inline void toggle_use_normal_default_color()
+  { m_use_default_color_normal = !m_use_default_color_normal; }
+  inline void toggle_flat_shading()
+  { m_flat_shading = !m_flat_shading; }
+  inline void toggle_reverse_normal()
+  { m_inverse_normal = !m_inverse_normal; }
+
+  /*****************/
+  /*****GETTERS*****/
+  inline bool draw_vertices() const
   { return m_draw_vertices; }
-  bool draw_edges() const
+  inline bool draw_edges() const
   { return m_draw_edges; }
-  bool draw_rays() const
+  inline bool draw_rays() const
   { return m_draw_rays; }
-  bool draw_lines() const
+  inline bool draw_lines() const
   { return m_draw_lines; }
-  bool draw_faces() const
+  inline bool draw_faces() const
   { return m_draw_faces; }
-  bool use_mono_color() const
-  { return m_use_mono_color; }
-  bool reverse_normal() const
-  { return m_inverse_normal; }
-  bool draw_text() const
+  inline bool draw_text() const
   { return m_draw_text; }
-
-  const CGAL::IO::Color& vertices_mono_color() const
-  { return m_vertices_mono_color; }
-  const CGAL::IO::Color& edges_mono_color() const
-  { return m_edges_mono_color; }
-  const CGAL::IO::Color& rays_mono_color() const
-  { return m_rays_mono_color; }
-  const CGAL::IO::Color& lines_mono_color() const
-  { return m_lines_mono_color; }
-  const CGAL::IO::Color& faces_mono_color() const
-  { return m_faces_mono_color; }
+  inline bool use_default_color() const
+  { return m_use_default_color; }
+  inline bool reverse_normal() const
+  { return m_inverse_normal; }
+  inline bool flat_shading() const
+  { return m_flat_shading; }
 
   Local_kernel::Plane_3 clipping_plane() const
   {
@@ -258,7 +289,9 @@ class Basic_viewer : public CGAL::QGLViewer
   { return (m_use_clipping_plane!=CLIPPING_PLANE_OFF); }
 
   const Graphics_scene& graphics_scene() const
-  { return gBuffer; }
+  { return m_scene; }
+
+  /*****************/
 
   virtual void redraw()
   {
@@ -269,12 +302,12 @@ class Basic_viewer : public CGAL::QGLViewer
   void reverse_all_normals()
   {
     m_inverse_normal=!m_inverse_normal;
-    gBuffer.reverse_all_normals();
+    m_scene.reverse_all_normals();
   }
 
   // Returns true if the data structure lies on a plane
   bool is_two_dimensional() const
-  { return !m_no_2D_mode && gBuffer.is_two_dimensional(); }
+  { return !m_no_2D_mode && m_scene.is_two_dimensional(); }
 
   virtual void draw()
   {
@@ -289,107 +322,230 @@ class Basic_viewer : public CGAL::QGLViewer
     if(!m_are_buffers_initialized)
     { initialize_buffers(); }
 
-    QColor color;
+    QVector3D color; 
     attrib_buffers(this);
 
     if(m_draw_vertices)
     {
-      rendering_program_p_l.bind();
+      if (m_draw_sphere_vertex && m_geometry_feature_enabled)
+      {
+        auto renderer = [this, &color, &clipPlane, &plane_point](float rendering_mode) {
+          rendering_program_sphere.bind();
+          if (m_use_default_color)
+          {
+            auto vertex_color = m_scene.get_default_color_point();
+            color = QVector3D((double)vertex_color.red()/(double)255,
+                              (double)vertex_color.green()/(double)255,
+                              (double)vertex_color.blue()/(double)255);
+            rendering_program_sphere.setUniformValue("u_DefaultColor", color); 
+            rendering_program_sphere.setUniformValue("u_UseDefaultColor", static_cast<GLint>(1)); 
+          }
+          else 
+          {
+            rendering_program_sphere.setUniformValue("u_UseDefaultColor", static_cast<GLint>(0)); 
+          }
+          rendering_program_sphere.setUniformValue("u_Radius", static_cast<GLfloat>(sceneRadius()*m_size_vertices*0.002));
+          rendering_program_sphere.setUniformValue("u_ClipPlane",  clipPlane);
+          rendering_program_sphere.setUniformValue("u_PointPlane", plane_point);
+          rendering_program_sphere.setUniformValue("u_RenderingMode", rendering_mode);
+
+          vao[VAO_POINTS].bind();
+          glDrawArrays(GL_POINTS, 0, static_cast<GLsizei>(m_scene.number_of_elements(GS::POS_POINTS)));
+        };
+
+        enum {
+          DRAW_ALL = -1, // draw all
+          DRAW_INSIDE_ONLY, // draw only the part inside the clipping plane
+          DRAW_OUTSIDE_ONLY // draw only the part outside the clipping plane
+        };
+
+        if (m_use_clipping_plane == CLIPPING_PLANE_SOLID_HALF_ONLY)
+        {
+          renderer(DRAW_INSIDE_ONLY);
+        }
+        else
+        {
+          renderer(DRAW_ALL);
+        }
 
-      // rendering_mode == -1: draw all
-      // rendering_mode == 0: draw inside clipping plane
-      // rendering_mode == 1: draw outside clipping plane
-      auto renderer = [this, &color, &clipPlane, &plane_point](float rendering_mode) {
-        vao[VAO_MONO_POINTS].bind();
-        color.setRgbF((double)m_vertices_mono_color.red()/(double)255,
-                      (double)m_vertices_mono_color.green()/(double)255,
-                      (double)m_vertices_mono_color.blue()/(double)255);
-        rendering_program_p_l.setAttributeValue("color",color);
-        rendering_program_p_l.setUniformValue("point_size", GLfloat(m_size_points));
-        rendering_program_p_l.setUniformValue("clipPlane", clipPlane);
-        rendering_program_p_l.setUniformValue("pointPlane", plane_point);
-        rendering_program_p_l.setUniformValue("rendering_mode", rendering_mode);
-        glDrawArrays(GL_POINTS, 0, static_cast<GLsizei>(gBuffer.number_of_elements(GS::POS_MONO_POINTS)));
-        vao[VAO_MONO_POINTS].release();
-
-        vao[VAO_COLORED_POINTS].bind();
-        if (m_use_mono_color)
+        rendering_program_sphere.release();
+      }
+      else 
+      {
+        auto renderer = [this, &color, &clipPlane, &plane_point](float rendering_mode) {
+          rendering_program_p_l.bind();
+
+          if (m_use_default_color)
+          {
+            auto vertex_color = m_scene.get_default_color_point();
+            color = QVector3D((double)vertex_color.red()/(double)255,
+                              (double)vertex_color.green()/(double)255,
+                              (double)vertex_color.blue()/(double)255);
+            rendering_program_p_l.setUniformValue("u_DefaultColor", color); 
+            rendering_program_p_l.setUniformValue("u_UseDefaultColor", static_cast<GLint>(1)); 
+          }
+          else 
+          {
+            rendering_program_p_l.setUniformValue("u_UseDefaultColor", static_cast<GLint>(0)); 
+          }
+          rendering_program_p_l.setUniformValue("u_PointSize",  GLfloat(m_size_vertices));
+          rendering_program_p_l.setUniformValue("u_IsOrthographic", GLint(is_two_dimensional()));
+
+          rendering_program_p_l.setUniformValue("u_ClipPlane", clipPlane);
+          rendering_program_p_l.setUniformValue("u_PointPlane", plane_point);
+          rendering_program_p_l.setUniformValue("u_RenderingMode", rendering_mode);
+
+          vao[VAO_POINTS].bind();
+          glDrawArrays(GL_POINTS, 0, static_cast<GLsizei>(m_scene.number_of_elements(GS::POS_POINTS)));
+        };
+
+        enum {
+          DRAW_ALL = -1, // draw all
+          DRAW_INSIDE_ONLY, // draw only the part inside the clipping plane
+          DRAW_OUTSIDE_ONLY // draw only the part outside the clipping plane
+        };
+
+        if (m_use_clipping_plane == CLIPPING_PLANE_SOLID_HALF_ONLY)
         {
-          color.setRgbF((double)m_vertices_mono_color.red()/(double)255,
-                        (double)m_vertices_mono_color.green()/(double)255,
-                      (double)m_vertices_mono_color.blue()/(double)255);
-          rendering_program_p_l.disableAttributeArray("color");
-          rendering_program_p_l.setAttributeValue("color",color);
+          renderer(DRAW_INSIDE_ONLY);
         }
         else
         {
-          rendering_program_p_l.enableAttributeArray("color");
+          renderer(DRAW_ALL);
         }
-        rendering_program_p_l.setUniformValue("point_size", GLfloat(m_size_points));
-        rendering_program_p_l.setUniformValue("clipPlane", clipPlane);
-        rendering_program_p_l.setUniformValue("pointPlane", plane_point);
-        rendering_program_p_l.setUniformValue("rendering_mode", rendering_mode);
-        glDrawArrays(GL_POINTS, 0, static_cast<GLsizei>(gBuffer.number_of_elements(GS::POS_COLORED_POINTS)));
-        vao[VAO_COLORED_POINTS].release();
-      };
 
-      enum {
-        DRAW_ALL = -1, // draw all
-        DRAW_INSIDE_ONLY, // draw only the part inside the clipping plane
-        DRAW_OUTSIDE_ONLY // draw only the part outside the clipping plane
-      };
+        rendering_program_p_l.release();
+      }
+    }
 
-      if (m_use_clipping_plane == CLIPPING_PLANE_SOLID_HALF_ONLY)
+    if(m_draw_edges && !m_draw_mesh_triangles)
+    {
+      if (m_draw_cylinder_edge && m_geometry_feature_enabled)
       {
-        renderer(DRAW_INSIDE_ONLY);
+        auto renderer = [this, &color, &clipPlane, &plane_point](float rendering_mode) {
+          rendering_program_cylinder.bind();
+
+          if (m_use_default_color)
+          {
+            auto edge_color = m_scene.get_default_color_segment();
+            color = QVector3D((double)edge_color.red()/(double)255,
+                              (double)edge_color.green()/(double)255,
+                              (double)edge_color.blue()/(double)255);
+            rendering_program_cylinder.setUniformValue("u_DefaultColor", color); 
+            rendering_program_cylinder.setUniformValue("u_UseDefaultColor", static_cast<GLint>(1)); 
+          }
+          else 
+          {
+            rendering_program_cylinder.setUniformValue("u_UseDefaultColor", static_cast<GLint>(0)); 
+          }
+          rendering_program_cylinder.setUniformValue("u_Radius", static_cast<GLfloat>(sceneRadius()*m_size_edges*0.001));
+          rendering_program_cylinder.setUniformValue("u_ClipPlane",  clipPlane);
+          rendering_program_cylinder.setUniformValue("u_PointPlane", plane_point);
+          rendering_program_cylinder.setUniformValue("u_RenderingMode", rendering_mode);
+
+          vao[VAO_SEGMENTS].bind();
+          glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(m_scene.number_of_elements(GS::POS_SEGMENTS)));
+        };
+
+        enum {
+          DRAW_ALL = -1, // draw all
+          DRAW_INSIDE_ONLY, // draw only the part inside the clipping plane
+          DRAW_OUTSIDE_ONLY // draw only the part outside the clipping plane
+        };
+
+        if (m_use_clipping_plane == CLIPPING_PLANE_SOLID_HALF_ONLY)
+        {
+          renderer(DRAW_INSIDE_ONLY);
+        }
+        else
+        {
+          renderer(DRAW_ALL);
+        }
+
+        rendering_program_cylinder.release();
       }
-      else
+      else 
       {
-        renderer(DRAW_ALL);
-      }
+        auto renderer = [this, &color, &clipPlane, &plane_point](float rendering_mode) {
 
-      rendering_program_p_l.release();
+          QVector2D viewport = {
+            CGAL_BASIC_VIEWER_INIT_SIZE_X,
+            CGAL_BASIC_VIEWER_INIT_SIZE_Y
+          };
+
+          rendering_program_line.bind();
+          
+          if (m_use_default_color)
+          {
+            auto edge_color = m_scene.get_default_color_segment();
+            color = QVector3D((double)edge_color.red()/(double)255,
+                              (double)edge_color.green()/(double)255,
+                              (double)edge_color.blue()/(double)255);
+            rendering_program_line.setUniformValue("u_DefaultColor", color); 
+            rendering_program_line.setUniformValue("u_UseDefaultColor", static_cast<GLint>(1)); 
+          }
+          else 
+          {
+            rendering_program_line.setUniformValue("u_UseDefaultColor", static_cast<GLint>(0)); 
+          }
+          rendering_program_line.setUniformValue("u_PointSize", static_cast<GLfloat>(m_size_edges));
+          rendering_program_line.setUniformValue("u_IsOrthographic", static_cast<GLint>(is_two_dimensional()));
+
+          rendering_program_line.setUniformValue("u_Viewport", viewport);
+          rendering_program_line.setUniformValue("u_ClipPlane", clipPlane);
+          rendering_program_line.setUniformValue("u_PointPlane", plane_point);
+          rendering_program_line.setUniformValue("u_RenderingMode", rendering_mode);
+
+          vao[VAO_SEGMENTS].bind();
+          glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(m_scene.number_of_elements(GS::POS_SEGMENTS)));
+        };
+
+        enum {
+          DRAW_ALL = -1, // draw all
+          DRAW_INSIDE_ONLY, // draw only the part inside the clipping plane
+          DRAW_OUTSIDE_ONLY // draw only the part outside the clipping plane
+        };
+
+        if (m_use_clipping_plane == CLIPPING_PLANE_SOLID_HALF_ONLY)
+        {
+          renderer(DRAW_INSIDE_ONLY);
+        }
+        else
+        {
+          renderer(DRAW_ALL);
+        }
+
+        rendering_program_line.release();
+      }
     }
 
-    if(m_draw_edges)
+    if(m_draw_rays)
     {
-      rendering_program_p_l.bind();
-
-      // rendering_mode == -1: draw all
-      // rendering_mode == 0: draw inside clipping plane
-      // rendering_mode == 1: draw outside clipping plane
       auto renderer = [this, &color, &clipPlane, &plane_point](float rendering_mode) {
-        vao[VAO_MONO_SEGMENTS].bind();
-        color.setRgbF((double)m_edges_mono_color.red()/(double)255,
-                      (double)m_edges_mono_color.green()/(double)255,
-                      (double)m_edges_mono_color.blue()/(double)255);
-        rendering_program_p_l.setAttributeValue("color",color);
-        rendering_program_p_l.setUniformValue("clipPlane", clipPlane);
-        rendering_program_p_l.setUniformValue("pointPlane", plane_point);
-        rendering_program_p_l.setUniformValue("rendering_mode", rendering_mode);
-        glLineWidth(m_size_edges);
-        glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(gBuffer.number_of_elements(GS::POS_MONO_SEGMENTS)));
-        vao[VAO_MONO_SEGMENTS].release();
-
-        vao[VAO_COLORED_SEGMENTS].bind();
-        if (m_use_mono_color)
+        rendering_program_p_l.bind();
+
+        if (m_use_default_color)
         {
-          color.setRgbF((double)m_edges_mono_color.red()/(double)255,
-                        (double)m_edges_mono_color.green()/(double)255,
-                        (double)m_edges_mono_color.blue()/(double)255);
-          rendering_program_p_l.disableAttributeArray("color");
-          rendering_program_p_l.setAttributeValue("color",color);
+          auto ray_color = m_scene.get_default_color_ray();
+          color = QVector3D((double)ray_color.red()/(double)255,
+                            (double)ray_color.green()/(double)255,
+                            (double)ray_color.blue()/(double)255);
+          rendering_program_p_l.setUniformValue("u_DefaultColor", color); 
+          rendering_program_p_l.setUniformValue("u_UseDefaultColor", static_cast<GLint>(1)); 
         }
-        else
+        else 
         {
-          rendering_program_p_l.enableAttributeArray("color");
+          rendering_program_p_l.setUniformValue("u_UseDefaultColor", static_cast<GLint>(0)); 
         }
-        rendering_program_p_l.setUniformValue("clipPlane", clipPlane);
-        rendering_program_p_l.setUniformValue("pointPlane", plane_point);
-        rendering_program_p_l.setUniformValue("rendering_mode", rendering_mode);
-        glLineWidth(m_size_edges);
-        glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(gBuffer.number_of_elements(GS::POS_COLORED_SEGMENTS)));
-        vao[VAO_COLORED_SEGMENTS].release();
+        rendering_program_p_l.setUniformValue("u_PointSize",  GLfloat(m_size_rays));
+        rendering_program_p_l.setUniformValue("u_IsOrthographic", GLint(is_two_dimensional()));
+
+        rendering_program_p_l.setUniformValue("u_ClipPlane", clipPlane);
+        rendering_program_p_l.setUniformValue("u_PointPlane", plane_point);
+        rendering_program_p_l.setUniformValue("u_RenderingMode", rendering_mode);
+
+        vao[VAO_RAYS].bind();
+        glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(m_scene.number_of_elements(GS::POS_RAYS)));
       };
 
       enum {
@@ -410,72 +566,51 @@ class Basic_viewer : public CGAL::QGLViewer
       rendering_program_p_l.release();
     }
 
-    if(m_draw_rays)
+    if(m_draw_lines)
     {
+      auto renderer = [this, &color, &clipPlane, &plane_point](float rendering_mode) {
         rendering_program_p_l.bind();
 
-        vao[VAO_MONO_RAYS].bind();
-        color.setRgbF((double)m_rays_mono_color.red()/(double)255,
-                      (double)m_rays_mono_color.green()/(double)255,
-                      (double)m_rays_mono_color.blue()/(double)255);
-        rendering_program_p_l.setAttributeValue("color",color);
-        glLineWidth(m_size_rays);
-        glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(gBuffer.number_of_elements(GS::POS_MONO_RAYS)));
-        vao[VAO_MONO_RAYS].release();
-
-        vao[VAO_COLORED_RAYS].bind();
-        if (m_use_mono_color)
+        if (m_use_default_color)
         {
-            color.setRgbF((double)m_rays_mono_color.red()/(double)255,
-                          (double)m_rays_mono_color.green()/(double)255,
-                          (double)m_rays_mono_color.blue()/(double)255);
-            rendering_program_p_l.disableAttributeArray("color");
-            rendering_program_p_l.setAttributeValue("color",color);
+          auto line_color = m_scene.get_default_color_line();
+          color = QVector3D((double)line_color.red()/(double)255,
+                            (double)line_color.green()/(double)255,
+                            (double)line_color.blue()/(double)255);
+          rendering_program_p_l.setUniformValue("u_DefaultColor", color); 
+          rendering_program_p_l.setUniformValue("u_UseDefaultColor", static_cast<GLint>(1)); 
         }
-        else
+        else 
         {
-            rendering_program_p_l.enableAttributeArray("color");
+          rendering_program_p_l.setUniformValue("u_UseDefaultColor", static_cast<GLint>(0)); 
         }
-        glLineWidth(m_size_rays);
-        glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(gBuffer.number_of_elements(GS::POS_COLORED_RAYS)));
-        vao[VAO_COLORED_RAYS].release();
-
-        rendering_program_p_l.release();
-    }
+        rendering_program_p_l.setUniformValue("u_PointSize",  GLfloat(m_size_lines));
+        rendering_program_p_l.setUniformValue("u_IsOrthographic", GLint(is_two_dimensional()));
 
-    if(m_draw_lines)
-    {
-        rendering_program_p_l.bind();
+        rendering_program_p_l.setUniformValue("u_ClipPlane", clipPlane);
+        rendering_program_p_l.setUniformValue("u_PointPlane", plane_point);
+        rendering_program_p_l.setUniformValue("u_RenderingMode", rendering_mode);
 
-        vao[VAO_MONO_LINES].bind();
-        color.setRgbF((double)m_lines_mono_color.red()/(double)255,
-                      (double)m_lines_mono_color.green()/(double)255,
-                      (double)m_lines_mono_color.blue()/(double)255);
-        rendering_program_p_l.setAttributeValue("color",color);
-        glLineWidth(m_size_lines);
-        glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(gBuffer.number_of_elements(GS::POS_MONO_LINES)));
-        vao[VAO_MONO_LINES].release();
+        vao[VAO_LINES].bind();
+        glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(m_scene.number_of_elements(GS::POS_LINES)));
+      };
 
-        rendering_program_p_l.release();
+      enum {
+        DRAW_ALL = -1, // draw all
+        DRAW_INSIDE_ONLY, // draw only the part inside the clipping plane
+        DRAW_OUTSIDE_ONLY // draw only the part outside the clipping plane
+      };
 
-        vao[VAO_COLORED_LINES].bind();
-        if (m_use_mono_color)
-        {
-            color.setRgbF((double)m_lines_mono_color.red()/(double)255,
-                          (double)m_lines_mono_color.green()/(double)255,
-                          (double)m_lines_mono_color.blue()/(double)255);
-            rendering_program_p_l.disableAttributeArray("color");
-            rendering_program_p_l.setAttributeValue("color",color);
-        }
-        else
-        {
-            rendering_program_p_l.enableAttributeArray("color");
-        }
-        glLineWidth(m_size_lines);
-        glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(gBuffer.number_of_elements(GS::POS_COLORED_LINES)));
-        vao[VAO_COLORED_LINES].release();
+      if (m_use_clipping_plane == CLIPPING_PLANE_SOLID_HALF_ONLY)
+      {
+        renderer(DRAW_INSIDE_ONLY);
+      }
+      else
+      {
+        renderer(DRAW_ALL);
+      }
 
-        rendering_program_p_l.release();
+      rendering_program_p_l.release();
     }
 
     // Fix Z-fighting by drawing faces at a depth
@@ -489,45 +624,39 @@ class Basic_viewer : public CGAL::QGLViewer
 
     if (m_draw_faces)
     {
-      rendering_program_face.bind();
 
       // reference: https://stackoverflow.com/questions/37780345/opengl-how-to-create-order-independent-transparency
       // rendering_mode == -1: draw all as solid;
       // rendering_mode == 0: draw solid only;
       // rendering_mode == 1: draw transparent only;
-      auto renderer = [this, &color, &clipPlane, &plane_point](float rendering_mode) {
-
-      vao[VAO_MONO_FACES].bind();
-      color.setRgbF((double)m_faces_mono_color.red()/(double)255,
-                    (double)m_faces_mono_color.green()/(double)255,
-                    (double)m_faces_mono_color.blue()/(double)255);
-      rendering_program_face.setAttributeValue("color",color);
-      rendering_program_face.setUniformValue("rendering_mode", rendering_mode);
-      rendering_program_face.setUniformValue("rendering_transparency", clipping_plane_rendering_transparency);
-      rendering_program_face.setUniformValue("clipPlane", clipPlane);
-      rendering_program_face.setUniformValue("pointPlane", plane_point);
-      glDrawArrays(GL_TRIANGLES, 0, static_cast<GLsizei>(gBuffer.number_of_elements(GS::POS_MONO_FACES)));
-      vao[VAO_MONO_FACES].release();
-
-        vao[VAO_COLORED_FACES].bind();
-        if (m_use_mono_color)
+      auto renderer = [this, &color, &clipPlane, &plane_point](float rendering_mode) 
+      {
+        glEnable(GL_POLYGON_OFFSET_FILL);
+        glPolygonOffset(2.0, 2.0); 
+        glDepthFunc(GL_LESS);
+        
+        rendering_program_face.bind();
+        if (m_use_default_color)
         {
-          color.setRgbF((double)m_faces_mono_color.red()/(double)255,
-                        (double)m_faces_mono_color.green()/(double)255,
-                        (double)m_faces_mono_color.blue()/(double)255);
-          rendering_program_face.disableAttributeArray("color");
-          rendering_program_face.setAttributeValue("color",color);
+          auto face_color = m_scene.get_default_color_face();
+          color = QVector3D((double)face_color.red()/(double)255,
+                            (double)face_color.green()/(double)255,
+                            (double)face_color.blue()/(double)255);
+          rendering_program_face.setUniformValue("u_DefaultColor", color); 
+          rendering_program_face.setUniformValue("u_UseDefaultColor", static_cast<GLint>(1)); 
         }
-        else
+        else 
         {
-          rendering_program_face.enableAttributeArray("color");
+          rendering_program_face.setUniformValue("u_UseDefaultColor", static_cast<GLint>(0)); 
         }
-        rendering_program_face.setUniformValue("rendering_mode", rendering_mode);
-        rendering_program_face.setUniformValue("rendering_transparency", clipping_plane_rendering_transparency);
-        rendering_program_face.setUniformValue("clipPlane", clipPlane);
-        rendering_program_face.setUniformValue("pointPlane", plane_point);
-        glDrawArrays(GL_TRIANGLES, 0, static_cast<GLsizei>(gBuffer.number_of_elements(GS::POS_COLORED_FACES)));
-        vao[VAO_COLORED_FACES].release();
+        rendering_program_face.setUniformValue("u_RenderingMode", rendering_mode);
+        rendering_program_face.setUniformValue("u_RenderingTransparency", clipping_plane_rendering_transparency);
+        rendering_program_face.setUniformValue("u_ClipPlane", clipPlane);
+        rendering_program_face.setUniformValue("u_PointPlane", plane_point);
+
+        vao[VAO_FACES].bind();
+        glDrawArrays(GL_TRIANGLES, 0, static_cast<GLsizei>(m_scene.number_of_elements(GS::POS_FACES)));
+        glDisable(GL_POLYGON_OFFSET_FILL);
       };
 
       auto renderer_clipping_plane = [this](bool clipping_plane_rendering) {
@@ -596,12 +725,98 @@ class Basic_viewer : public CGAL::QGLViewer
       rendering_program_face.release();
     }
 
+    if (m_draw_normals)
+    {
+      auto renderer = [this, &color, &clipPlane, &plane_point](float rendering_mode) {
+        rendering_program_normal.bind();
+        if (m_use_default_color_normal)
+        {
+          color = QVector3D((double)m_default_color_normal.red()/(double)255,
+                            (double)m_default_color_normal.green()/(double)255,
+                            (double)m_default_color_normal.blue()/(double)255);
+          rendering_program_normal.setUniformValue("u_DefaultColor", color);
+          rendering_program_normal.setUniformValue("u_UseDefaultColor", static_cast<GLint>(1));
+        }
+        else 
+        {
+          rendering_program_normal.setUniformValue("u_UseDefaultColor", static_cast<GLint>(0));
+        }
+        rendering_program_normal.setUniformValue("u_Factor", static_cast<GLfloat>(m_height_factor_normals));
+        rendering_program_normal.setUniformValue("u_SceneRadius", static_cast<GLfloat>(sceneRadius()));
+        if (m_display_face_normal)
+        {
+          rendering_program_normal.setUniformValue("u_DisplayFaceNormal", static_cast<GLint>(1));
+        }
+        else 
+        {
+          rendering_program_normal.setUniformValue("u_DisplayFaceNormal", static_cast<GLint>(0));
+        }
+
+        rendering_program_normal.setUniformValue("u_ClipPlane",  clipPlane);
+        rendering_program_normal.setUniformValue("u_PointPlane", plane_point);
+        rendering_program_normal.setUniformValue("u_RenderingMode", rendering_mode);
+
+        vao[VAO_FACES].bind();
+        glLineWidth(m_size_normals);
+        glDrawArrays(GL_TRIANGLES, 0, static_cast<GLsizei>(m_scene.number_of_elements(GS::POS_FACES)));
+      };
+
+      enum {
+        DRAW_ALL = -1, // draw all
+        DRAW_INSIDE_ONLY, // draw only the part inside the clipping plane
+        DRAW_OUTSIDE_ONLY // draw only the part outside the clipping plane
+      };
+
+      if (m_use_clipping_plane == CLIPPING_PLANE_SOLID_HALF_ONLY)
+      {
+        renderer(DRAW_INSIDE_ONLY);
+      }
+      else
+      {
+        renderer(DRAW_ALL);
+      }
+
+      rendering_program_normal.release();
+    }
+
+    if (m_draw_mesh_triangles)
+    {
+
+      auto renderer = [this, &color, &clipPlane, &plane_point](float rendering_mode) 
+      {
+        rendering_program_triangle.bind();
+        rendering_program_triangle.setUniformValue("u_RenderingMode", rendering_mode);
+        rendering_program_triangle.setUniformValue("u_ClipPlane", clipPlane);
+        rendering_program_triangle.setUniformValue("u_PointPlane", plane_point);
+
+        vao[VAO_FACES].bind();
+        glDrawArrays(GL_TRIANGLES, 0, static_cast<GLsizei>(m_scene.number_of_elements(GS::POS_FACES)));
+      };
+      
+      enum {
+        DRAW_ALL = -1, // draw all
+        DRAW_INSIDE_ONLY, // draw only the part inside the clipping plane
+        DRAW_OUTSIDE_ONLY // draw only the part outside the clipping plane
+      };
+
+      if (m_use_clipping_plane == CLIPPING_PLANE_SOLID_HALF_ONLY)
+      {
+        renderer(DRAW_INSIDE_ONLY);
+      }
+      else
+      {
+        renderer(DRAW_ALL);
+      }
+
+      rendering_program_triangle.release();
+    }
+
     if (m_draw_text)
     {
       glDisable(GL_LIGHTING);
-      for (std::size_t i=0; i<gBuffer.m_texts_size(); ++i)
+      for (std::size_t i=0; i<m_scene.m_texts_size(); ++i)
       {
-        auto& m_texts_vec = gBuffer.get_m_texts();
+        auto& m_texts_vec = m_scene.get_m_texts();
         CGAL::qglviewer::Vec screenPos=camera()->projectedCoordinatesOf
           (CGAL::qglviewer::Vec(std::get<0>(m_texts_vec[i]).x(),
                                 std::get<0>(m_texts_vec[i]).y(),
@@ -626,7 +841,12 @@ class Basic_viewer : public CGAL::QGLViewer
   {
     rendering_program_face.removeAllShaders();
     rendering_program_p_l.removeAllShaders();
+    rendering_program_line.removeAllShaders();
     rendering_program_clipping_plane.removeAllShaders();
+    rendering_program_sphere.removeAllShaders();
+    rendering_program_cylinder.removeAllShaders();
+    rendering_program_normal.removeAllShaders();
+    rendering_program_triangle.removeAllShaders();
 
     // Create the buffers
     for (unsigned int i=0; i<NB_GL_BUFFERS; ++i)
@@ -643,21 +863,25 @@ class Basic_viewer : public CGAL::QGLViewer
 
     // Vertices and segments shader
 
+    // const char* source_ = isOpenGL_4_3()
+    //     ? VERTEX_SOURCE_P_L
+    //     : VERTEX_SOURCE_P_L_COMP;
+
     const char* source_ = isOpenGL_4_3()
-        ? vertex_source_p_l
-        : vertex_source_p_l_comp;
+                          ? VERTEX_SOURCE_P_L
+                          : VERTEX_SOURCE_P_L_COMP;
 
     QOpenGLShader *vertex_shader_p_l = new QOpenGLShader(QOpenGLShader::Vertex);
     if(!vertex_shader_p_l->compileSourceCode(source_))
     { std::cerr<<"Compiling vertex source FAILED"<<std::endl; }
 
     source_ = isOpenGL_4_3()
-        ? fragment_source_p_l
-        : fragment_source_p_l_comp;
+        ? FRAGMENT_SOURCE_P_L
+        : FRAGMENT_SOURCE_P_L_COMP;
 
     QOpenGLShader *fragment_shader_p_l= new QOpenGLShader(QOpenGLShader::Fragment);
     if(!fragment_shader_p_l->compileSourceCode(source_))
-    { std::cerr<<"Compiling fragmentsource FAILED"<<std::endl; }
+    { std::cerr<<"Compiling fragment source FAILED"<<std::endl; }
 
     if(!rendering_program_p_l.addShader(vertex_shader_p_l))
     { std::cerr<<"adding vertex shader FAILED"<<std::endl; }
@@ -669,16 +893,16 @@ class Basic_viewer : public CGAL::QGLViewer
     // Faces shader
 
     source_ = isOpenGL_4_3()
-            ? vertex_source_color
-            : vertex_source_color_comp;
+            ? VERTEX_SOURCE_COLOR
+            : VERTEX_SOURCE_COLOR_COMP;
 
     QOpenGLShader *vertex_shader_face = new QOpenGLShader(QOpenGLShader::Vertex);
     if(!vertex_shader_face->compileSourceCode(source_))
     { std::cerr<<"Compiling vertex source FAILED"<<std::endl; }
 
     source_ = isOpenGL_4_3()
-            ? fragment_source_color
-            : fragment_source_color_comp;
+            ? FRAGMENT_SOURCE_COLOR
+            : FRAGMENT_SOURCE_COLOR_COMP;
 
     QOpenGLShader *fragment_shader_face= new QOpenGLShader(QOpenGLShader::Fragment);
     if(!fragment_shader_face->compileSourceCode(source_))
@@ -694,13 +918,13 @@ class Basic_viewer : public CGAL::QGLViewer
     if (isOpenGL_4_3())
     {
       // clipping plane shader
-      source_ = vertex_source_clipping_plane;
+      source_ = VERTEX_SOURCE_CLIPPING_PLANE;
 
       QOpenGLShader *vertex_shader_clipping_plane = new QOpenGLShader(QOpenGLShader::Vertex);
       if (!vertex_shader_clipping_plane->compileSourceCode(source_))
       { std::cerr << "Compiling vertex source for clipping plane FAILED" << std::endl; }
 
-      source_ = fragment_source_clipping_plane;
+      source_ = FRAGMENT_SOURCE_CLIPPING_PLANE;
 
       QOpenGLShader *fragment_shader_clipping_plane = new QOpenGLShader(QOpenGLShader::Fragment);
       if (!fragment_shader_clipping_plane->compileSourceCode(source_))
@@ -716,7 +940,7 @@ class Basic_viewer : public CGAL::QGLViewer
     }
 
     // source_ = isOpenGL_4_3()
-    //         ? vertex_source_clipping_plane
+    //         ? VERTEX_SOURCE_CLIPPING_PLANE
     //         : vertex_source_clipping_plane_comp;
 
     // QOpenGLShader *vertex_shader_clipping_plane = new QOpenGLShader(QOpenGLShader::Vertex);
@@ -724,7 +948,7 @@ class Basic_viewer : public CGAL::QGLViewer
     // { std::cerr << "Compiling vertex source for clipping plane FAILED" << std::endl; }
 
     // source_ = isOpenGL_4_3()
-    //         ? fragment_source_clipping_plane
+    //         ? FRAGMENT_SOURCE_CLIPPING_PLANE
     //         : fragment_source_clipping_plane_comp;
 
     // QOpenGLShader *fragment_shader_clipping_plane = new QOpenGLShader(QOpenGLShader::Fragment);
@@ -737,281 +961,284 @@ class Basic_viewer : public CGAL::QGLViewer
     // { std::cerr << "Adding fragment shader for clipping plane FAILED" << std::endl; }
     // if (!rendering_program_clipping_plane.link())
     // { std::cerr << "Linking Program for clipping plane FAILED" << std::endl; }
-  }
 
-  void initialize_buffers()
-  {
-    set_camera_mode();
-    rendering_program_p_l.bind();
+    // Sphere shader
+    if (isOpenGL_4_3())
+    {
+      source_ = VERTEX_SOURCE_SHAPE;
 
-    // 1) POINT SHADER
+      QOpenGLShader *vertex_shader_sphere = new QOpenGLShader(QOpenGLShader::Vertex);
+      if (!vertex_shader_sphere->compileSourceCode(source_))
+      { std::cerr << "Compiling vertex source for sphere FAILED" << std::endl; }
 
-    // 1.1) Mono points
-    vao[VAO_MONO_POINTS].bind();
+      source_ = GEOMETRY_SOURCE_SPHERE;
 
-    unsigned int bufn = 0;
-    CGAL_assertion(bufn<NB_GL_BUFFERS);
-    buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::POS_MONO_POINTS).data(),
-                           gBuffer.get_size_of_index(GS::POS_MONO_POINTS));
-    rendering_program_p_l.enableAttributeArray("vertex");
-    rendering_program_p_l.setAttributeBuffer("vertex",GL_FLOAT,0,3);
-    // TODO/QUESTION can we use double for BufferType?
-    // if not remove the template parameter and use float everywhere.
+      QOpenGLShader *geometry_shader_sphere = new QOpenGLShader(QOpenGLShader::Geometry);
+      if (!geometry_shader_sphere->compileSourceCode(source_))
+      { std::cerr << "Compiling geometry source for sphere FAILED" << std::endl; }
 
-    buffers[bufn].release();
+      source_ = FRAGMENT_SOURCE_P_L;
 
-    rendering_program_p_l.disableAttributeArray("color");
+      QOpenGLShader *fragment_shader_sphere = new QOpenGLShader(QOpenGLShader::Fragment);
+      if (!fragment_shader_sphere->compileSourceCode(source_))
+      { std::cerr << "Compiling fragment source for sphere FAILED" << std::endl; }
 
-    vao[VAO_MONO_POINTS].release();
 
-    // 1.2) Color points
-    vao[VAO_COLORED_POINTS].bind();
+      if (!rendering_program_sphere.addShader(vertex_shader_sphere))
+      { std::cerr << "Adding vertex shader for sphere FAILED" << std::endl;}
+      if (!rendering_program_sphere.addShader(geometry_shader_sphere))
+      { std::cerr << "Adding geometry shader for sphere FAILED" << std::endl;}
+      if (!rendering_program_sphere.addShader(fragment_shader_sphere))
+      { std::cerr << "Adding fragment shader for clipping plane FAILED" << std::endl; }
+      if (!rendering_program_sphere.link())
+      { std::cerr << "Linking Program for sphere FAILED" << std::endl; }
+    }
 
-    ++bufn;
-    CGAL_assertion(bufn<NB_GL_BUFFERS);
-    buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::POS_COLORED_POINTS).data(),
-                           gBuffer.get_size_of_index(GS::POS_COLORED_POINTS));
-    rendering_program_p_l.enableAttributeArray("vertex");
-    rendering_program_p_l.setAttributeBuffer("vertex",GL_FLOAT,0,3);
-    buffers[bufn].release();
+    // Cylinder shader
+    if (isOpenGL_4_3())
+    {
+      // clipping plane shader
+      source_ = VERTEX_SOURCE_SHAPE;
 
-    ++bufn;
-    CGAL_assertion(bufn<NB_GL_BUFFERS);
-    buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::COLOR_POINTS).data(),
-                           gBuffer.get_size_of_index(GS::COLOR_POINTS));
-    rendering_program_p_l.enableAttributeArray("color");
-    rendering_program_p_l.setAttributeBuffer("color",GL_FLOAT,0,3);
-    buffers[bufn].release();
+      QOpenGLShader *vertex_shader_cylinder = new QOpenGLShader(QOpenGLShader::Vertex);
+      if (!vertex_shader_cylinder->compileSourceCode(source_))
+      { std::cerr << "Compiling vertex source for cylinder FAILED" << std::endl; }
 
-    vao[VAO_COLORED_POINTS].release();
+      source_ = GEOMETRY_SOURCE_CYLINDER;
 
-    // 2) SEGMENT SHADER
+      QOpenGLShader *geometry_shader_cylinder = new QOpenGLShader(QOpenGLShader::Geometry);
+      if (!geometry_shader_cylinder->compileSourceCode(source_))
+      { std::cerr << "Compiling geometry source for cylinder FAILED" << std::endl; }
 
-    // 2.1) Mono segments
-    vao[VAO_MONO_SEGMENTS].bind();
+      source_ = FRAGMENT_SOURCE_P_L;
 
-    ++bufn;
-    CGAL_assertion(bufn<NB_GL_BUFFERS);
-    buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::POS_MONO_SEGMENTS).data(),
-                           gBuffer.get_size_of_index(GS::POS_MONO_SEGMENTS));
-    rendering_program_p_l.enableAttributeArray("vertex");
-    rendering_program_p_l.setAttributeBuffer("vertex",GL_FLOAT,0,3);
+      QOpenGLShader *fragment_shader_cylinder = new QOpenGLShader(QOpenGLShader::Fragment);
+      if (!fragment_shader_cylinder->compileSourceCode(source_))
+      { std::cerr << "Compiling fragment source for cylinder FAILED" << std::endl; }
 
-    buffers[bufn].release();
 
-    rendering_program_p_l.disableAttributeArray("color");
+      if (!rendering_program_cylinder.addShader(vertex_shader_cylinder))
+      { std::cerr << "Adding vertex shader for cylinder FAILED" << std::endl;}
+      if (!rendering_program_cylinder.addShader(geometry_shader_cylinder))
+      { std::cerr << "Adding geometry shader for cylinder FAILED" << std::endl;}
+      if (!rendering_program_cylinder.addShader(fragment_shader_cylinder))
+      { std::cerr << "Adding fragment shader for clipping plane FAILED" << std::endl; }
+      if (!rendering_program_cylinder.link())
+      { std::cerr << "Linking Program for cylinder FAILED" << std::endl; }
+    }
+    
+    // Normal shader
+    if (isOpenGL_4_3())
+    {
+      source_ = VERTEX_SOURCE_NORMAL;
 
-    vao[VAO_MONO_SEGMENTS].release();
+      QOpenGLShader *vertex_shader_normal = new QOpenGLShader(QOpenGLShader::Vertex);
+      if (!vertex_shader_normal->compileSourceCode(source_))
+      { std::cerr << "Compiling vertex source for normal FAILED" << std::endl; }
 
-    // 2.1) Color segments
-    vao[VAO_COLORED_SEGMENTS].bind();
+      source_ = GEOMETRY_SOURCE_NORMAL;
 
-    ++bufn;
-    CGAL_assertion(bufn<NB_GL_BUFFERS);
-    buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::POS_COLORED_SEGMENTS).data(),
-                           gBuffer.get_size_of_index(GS::POS_COLORED_SEGMENTS));
-    rendering_program_p_l.enableAttributeArray("vertex");
-    rendering_program_p_l.setAttributeBuffer("vertex",GL_FLOAT,0,3);
+      QOpenGLShader *geometry_shader_normal = new QOpenGLShader(QOpenGLShader::Geometry);
+      if (!geometry_shader_normal->compileSourceCode(source_))
+      { std::cerr << "Compiling geometry source for normal FAILED" << std::endl; }
 
-    buffers[bufn].release();
+      source_ = FRAGMENT_SOURCE_P_L;
 
-    ++bufn;
-    CGAL_assertion(bufn<NB_GL_BUFFERS);
-    buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::COLOR_SEGMENTS).data(),
-                           gBuffer.get_size_of_index(GS::COLOR_SEGMENTS));
-    rendering_program_p_l.enableAttributeArray("color");
-    rendering_program_p_l.setAttributeBuffer("color",GL_FLOAT,0,3);
-    buffers[bufn].release();
+      QOpenGLShader *fragment_shader_normal = new QOpenGLShader(QOpenGLShader::Fragment);
+      if (!fragment_shader_normal->compileSourceCode(source_))
+      { std::cerr << "Compiling fragment source for normal FAILED" << std::endl; }
 
-    vao[VAO_COLORED_SEGMENTS].release();
 
-    rendering_program_p_l.release();
+      if (!rendering_program_normal.addShader(vertex_shader_normal))
+      { std::cerr << "Adding vertex shader for normal FAILED" << std::endl;}
+      if (!rendering_program_normal.addShader(geometry_shader_normal))
+      { std::cerr << "Adding geometry shader for normal FAILED" << std::endl;}
+      if (!rendering_program_normal.addShader(fragment_shader_normal))
+      { std::cerr << "Adding fragment shader for clipping plane FAILED" << std::endl; }
+      if (!rendering_program_normal.link())
+      { std::cerr << "Linking Program for normal FAILED" << std::endl; }
+    }
 
-    // 3) RAYS SHADER
+    // Normal shader
+    if (isOpenGL_4_3())
+    {
+      source_ = VERTEX_SOURCE_TRIANGLE;
 
-    // 3.1) Mono rays
-    vao[VAO_MONO_RAYS].bind();
+      QOpenGLShader *vertex_shader_triangle = new QOpenGLShader(QOpenGLShader::Vertex);
+      if (!vertex_shader_triangle->compileSourceCode(source_))
+      { std::cerr << "Compiling vertex source for triangle FAILED" << std::endl; }
 
-    ++bufn;
-    CGAL_assertion(bufn<NB_GL_BUFFERS);
-    buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::POS_MONO_RAYS).data(),
-                           gBuffer.get_size_of_index(GS::POS_MONO_RAYS));
-    rendering_program_p_l.enableAttributeArray("vertex");
-    rendering_program_p_l.setAttributeArray("vertex",GL_FLOAT,0,3);
+      source_ = GEOMETRY_SOURCE_TRIANGLE;
 
-    buffers[bufn].release();
+      QOpenGLShader *geometry_shader_triangle = new QOpenGLShader(QOpenGLShader::Geometry);
+      if (!geometry_shader_triangle->compileSourceCode(source_))
+      { std::cerr << "Compiling geometry source for triangle FAILED" << std::endl; }
 
-    rendering_program_p_l.disableAttributeArray("color");
+      source_ = FRAGMENT_SOURCE_P_L;
 
-    vao[VAO_MONO_RAYS].release();
+      QOpenGLShader *fragment_shader_triangle = new QOpenGLShader(QOpenGLShader::Fragment);
+      if (!fragment_shader_triangle->compileSourceCode(source_))
+      { std::cerr << "Compiling fragment source for triangle FAILED" << std::endl; }
 
-    // 3.2) Color rays
 
-    vao[VAO_COLORED_RAYS].bind();
+      if (!rendering_program_triangle.addShader(vertex_shader_triangle))
+      { std::cerr << "Adding vertex shader for triangle FAILED" << std::endl;}
+      if (!rendering_program_triangle.addShader(geometry_shader_triangle))
+      { std::cerr << "Adding geometry shader for triangle FAILED" << std::endl;}
+      if (!rendering_program_triangle.addShader(fragment_shader_triangle))
+      { std::cerr << "Adding fragment shader for clipping plane FAILED" << std::endl; }
+      if (!rendering_program_triangle.link())
+      { std::cerr << "Linking Program for triangle FAILED" << std::endl; }
+    }
 
-    ++bufn;
-    CGAL_assertion(bufn<NB_GL_BUFFERS);
-    buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::POS_COLORED_RAYS).data(),
-                           gBuffer.get_size_of_index(GS::POS_COLORED_RAYS));
-    rendering_program_p_l.enableAttributeArray("vertex");
-    rendering_program_p_l.setAttributeBuffer("vertex",GL_FLOAT,0,3);
+    // Line shader
+    if (isOpenGL_4_3())
+    {
+      source_ = VERTEX_SOURCE_LINE_WIDTH;
 
-    buffers[bufn].release();
+      QOpenGLShader *vertex_shader_line = new QOpenGLShader(QOpenGLShader::Vertex);
+      if (!vertex_shader_line->compileSourceCode(source_))
+      { std::cerr << "Compiling vertex source for line FAILED" << std::endl; }
 
-    ++bufn;
-    CGAL_assertion(bufn<NB_GL_BUFFERS);
-    buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::COLOR_RAYS).data(),
-                           gBuffer.get_size_of_index(GS::COLOR_RAYS));
-    rendering_program_p_l.enableAttributeArray("color");
-    rendering_program_p_l.setAttributeBuffer("color",GL_FLOAT,0,3);
-    buffers[bufn].release();
+      source_ = GEOMETRY_SOURCE_LINE_WIDTH;
 
-    vao[VAO_COLORED_RAYS].release();
+      QOpenGLShader *geometry_shader_line = new QOpenGLShader(QOpenGLShader::Geometry);
+      if (!geometry_shader_line->compileSourceCode(source_))
+      { std::cerr << "Compiling geometry source for line FAILED" << std::endl; }
 
-    rendering_program_p_l.release();
+      source_ = FRAGMENT_SOURCE_P_L;
 
-    // 4) LINES SHADER
-    // 4.1) Mono lines
-    vao[VAO_MONO_LINES].bind();
+      QOpenGLShader *fragment_shader_line = new QOpenGLShader(QOpenGLShader::Fragment);
+      if (!fragment_shader_line->compileSourceCode(source_))
+      { std::cerr << "Compiling fragment source for line FAILED" << std::endl; }
 
-    ++bufn;
-    CGAL_assertion(bufn<NB_GL_BUFFERS);
-    buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::POS_MONO_LINES).data(),
-                           gBuffer.get_size_of_index(GS::POS_MONO_LINES));
-    rendering_program_p_l.enableAttributeArray("vertex");
-    rendering_program_p_l.setAttributeArray("vertex",GL_FLOAT,0,3);
 
-    buffers[bufn].release();
+      if (!rendering_program_line.addShader(vertex_shader_line))
+      { std::cerr << "Adding vertex shader for line FAILED" << std::endl;}
+      if (!rendering_program_line.addShader(geometry_shader_line))
+      { std::cerr << "Adding geometry shader for line FAILED" << std::endl;}
+      if (!rendering_program_line.addShader(fragment_shader_line))
+      { std::cerr << "Adding fragment shader for line FAILED" << std::endl; }
+      if (!rendering_program_line.link())
+      { std::cerr << "Linking Program for line FAILED" << std::endl; }
+    }
+  }
 
-    rendering_program_p_l.disableAttributeArray("color");
+  void initialize_buffers()
+  {
+    set_camera_mode();
+    rendering_program_p_l.bind();
 
-    vao[VAO_MONO_LINES].release();
+    unsigned int bufn = 0;
+    std::vector<float> positions, normals, colors; 
+    // 1) POINT SHADER
 
-    // 4.2 Color lines
+    vao[VAO_POINTS].bind(); 
+    positions = m_scene.get_array_of_index(GS::POS_POINTS); 
+    colors = m_scene.get_array_of_index(GS::COLOR_POINTS);
 
-    vao[VAO_COLORED_LINES].bind();
+    CGAL_assertion(bufn<NB_GL_BUFFERS);
+    buffers[bufn].bind();
+    buffers[bufn].allocate(positions.data(), positions.size()*sizeof(float));
+    rendering_program_p_l.enableAttributeArray("a_Pos");
+    rendering_program_p_l.setAttributeBuffer("a_Pos",GL_FLOAT,0,3);
 
     ++bufn;
     CGAL_assertion(bufn<NB_GL_BUFFERS);
     buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::POS_COLORED_LINES).data(),
-                           gBuffer.get_size_of_index(GS::POS_COLORED_LINES));
-    rendering_program_p_l.enableAttributeArray("vertex");
-    rendering_program_p_l.setAttributeBuffer("vertex",GL_FLOAT,0,3);
+    buffers[bufn].allocate(colors.data(), colors.size()*sizeof(float));
+    rendering_program_p_l.enableAttributeArray("a_Color");
+    rendering_program_p_l.setAttributeBuffer("a_Color",GL_FLOAT,0,3);
+
+    // 2) SEGMENT SHADER
 
-    buffers[bufn].release();
+    vao[VAO_SEGMENTS].bind(); 
+    positions = m_scene.get_array_of_index(GS::POS_SEGMENTS); 
+    colors = m_scene.get_array_of_index(GS::COLOR_SEGMENTS);
 
     ++bufn;
     CGAL_assertion(bufn<NB_GL_BUFFERS);
     buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::COLOR_LINES).data(),
-                           gBuffer.get_size_of_index(GS::COLOR_LINES));
-    rendering_program_p_l.enableAttributeArray("color");
-    rendering_program_p_l.setAttributeBuffer("color",GL_FLOAT,0,3);
-    buffers[bufn].release();
+    buffers[bufn].allocate(positions.data(), positions.size()*sizeof(float));
+    rendering_program_p_l.enableAttributeArray("a_Pos");
+    rendering_program_p_l.setAttributeBuffer("a_Pos",GL_FLOAT,0,3);
 
-    vao[VAO_COLORED_LINES].release();
-
-    rendering_program_p_l.release();
+    ++bufn;
+    CGAL_assertion(bufn<NB_GL_BUFFERS);
+    buffers[bufn].bind();
+    buffers[bufn].allocate(colors.data(), colors.size()*sizeof(float));
+    rendering_program_p_l.enableAttributeArray("a_Color");
+    rendering_program_p_l.setAttributeBuffer("a_Color",GL_FLOAT,0,3);
 
-    // 5) FACE SHADER
-    rendering_program_face.bind();
+    // 3) RAYS SHADER
 
-    // 5.1) Mono faces
-    vao[VAO_MONO_FACES].bind();
+    vao[VAO_RAYS].bind(); 
+    positions = m_scene.get_array_of_index(GS::POS_RAYS); 
+    colors = m_scene.get_array_of_index(GS::COLOR_RAYS);
 
-    // 5.1.1) points of the mono faces
     ++bufn;
     CGAL_assertion(bufn<NB_GL_BUFFERS);
     buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::POS_MONO_FACES).data(),
-                           gBuffer.get_size_of_index(GS::POS_MONO_FACES));
-    rendering_program_face.enableAttributeArray("vertex");
-    rendering_program_face.setAttributeBuffer("vertex",GL_FLOAT,0,3);
+    buffers[bufn].allocate(positions.data(), positions.size()*sizeof(float));
+    rendering_program_p_l.enableAttributeArray("a_Pos");
+    rendering_program_p_l.setAttributeBuffer("a_Pos",GL_FLOAT,0,3);
 
-    buffers[bufn].release();
-
-    // 5.1.2) normals of the mono faces
     ++bufn;
     CGAL_assertion(bufn<NB_GL_BUFFERS);
     buffers[bufn].bind();
-    if (m_flatShading)
-    {
-      buffers[bufn].allocate(gBuffer.get_array_of_index(GS::FLAT_NORMAL_MONO_FACES).data(),
-                             gBuffer.get_size_of_index(GS::FLAT_NORMAL_MONO_FACES));
-    }
-    else
-    {
-      buffers[bufn].allocate(gBuffer.get_array_of_index(GS::SMOOTH_NORMAL_MONO_FACES).data(),
-                             gBuffer.get_size_of_index(GS::SMOOTH_NORMAL_MONO_FACES));
-    }
-    rendering_program_face.enableAttributeArray("normal");
-    rendering_program_face.setAttributeBuffer("normal",GL_FLOAT,0,3);
+    buffers[bufn].allocate(colors.data(), colors.size()*sizeof(float));
+    rendering_program_p_l.enableAttributeArray("a_Color");
+    rendering_program_p_l.setAttributeBuffer("a_Color",GL_FLOAT,0,3);
 
-    buffers[bufn].release();
-
-    // 5.1.3) color of the mono faces
-    rendering_program_face.disableAttributeArray("color");
-    vao[VAO_MONO_FACES].release();
+    // 4) LINES SHADER
 
-    // 5.2) Color faces
-    vao[VAO_COLORED_FACES].bind();
+    vao[VAO_LINES].bind(); 
+    positions = m_scene.get_array_of_index(GS::POS_LINES); 
+    colors = m_scene.get_array_of_index(GS::COLOR_LINES);
 
-    // 5.2.1) points of the color faces
     ++bufn;
     CGAL_assertion(bufn<NB_GL_BUFFERS);
     buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::POS_COLORED_FACES).data(),
-                           gBuffer.get_size_of_index(GS::POS_COLORED_FACES));
-    rendering_program_face.enableAttributeArray("vertex");
-    rendering_program_face.setAttributeBuffer("vertex",GL_FLOAT,0,3);
+    buffers[bufn].allocate(positions.data(), positions.size()*sizeof(float));
+    rendering_program_p_l.enableAttributeArray("a_Pos");
+    rendering_program_p_l.setAttributeBuffer("a_Pos",GL_FLOAT,0,3);
 
-    buffers[bufn].release();
-
-    // 5.2.2) normals of the color faces
     ++bufn;
     CGAL_assertion(bufn<NB_GL_BUFFERS);
     buffers[bufn].bind();
-    if (m_flatShading)
-    {
-      buffers[bufn].allocate(gBuffer.get_array_of_index(GS::FLAT_NORMAL_COLORED_FACES).data(),
-                             gBuffer.get_size_of_index(GS::FLAT_NORMAL_COLORED_FACES));
-    }
-    else
-    {
-      buffers[bufn].allocate(gBuffer.get_array_of_index(GS::SMOOTH_NORMAL_COLORED_FACES).data(),
-                             gBuffer.get_size_of_index(GS::SMOOTH_NORMAL_COLORED_FACES));
-    }
-    rendering_program_face.enableAttributeArray("normal");
-    rendering_program_face.setAttributeBuffer("normal",GL_FLOAT,0,3);
+    buffers[bufn].allocate(colors.data(), colors.size()*sizeof(float));
+    rendering_program_p_l.enableAttributeArray("a_Color");
+    rendering_program_p_l.setAttributeBuffer("a_Color",GL_FLOAT,0,3);
 
-    buffers[bufn].release();
+    // 5) FACE SHADER
+
+    vao[VAO_FACES].bind(); 
+    positions = m_scene.get_array_of_index(GS::POS_FACES); 
+    normals = m_scene.get_array_of_index(
+      m_flat_shading ? GS::FLAT_NORMAL_FACES : GS::SMOOTH_NORMAL_FACES
+    );
+    colors = m_scene.get_array_of_index(GS::COLOR_FACES);
 
-    // 5.2.3) colors of the faces
     ++bufn;
     CGAL_assertion(bufn<NB_GL_BUFFERS);
     buffers[bufn].bind();
-    buffers[bufn].allocate(gBuffer.get_array_of_index(GS::COLOR_FACES).data(),
-                           gBuffer.get_size_of_index(GS::COLOR_FACES));
-    rendering_program_face.enableAttributeArray("color");
-    rendering_program_face.setAttributeBuffer("color",GL_FLOAT,0,3);
-
-    buffers[bufn].release();
+    buffers[bufn].allocate(positions.data(), positions.size()*sizeof(float));
+    rendering_program_face.enableAttributeArray("a_Pos");
+    rendering_program_face.setAttributeBuffer("a_Pos",GL_FLOAT,0,3);
 
-    vao[VAO_COLORED_FACES].release();
-
-    rendering_program_face.release();
+    ++bufn;
+    CGAL_assertion(bufn<NB_GL_BUFFERS);
+    buffers[bufn].bind();
+    buffers[bufn].allocate(normals.data(), normals.size()*sizeof(float));
+    rendering_program_face.enableAttributeArray("a_Normal");
+    rendering_program_face.setAttributeBuffer("a_Normal",GL_FLOAT,0,3);
 
+    ++bufn;
+    CGAL_assertion(bufn<NB_GL_BUFFERS);
+    buffers[bufn].bind();
+    buffers[bufn].allocate(colors.data(), colors.size()*sizeof(float));
+    rendering_program_face.enableAttributeArray("a_Color");
+    rendering_program_face.setAttributeBuffer("a_Color",GL_FLOAT,0,3);
 
     // 6) clipping plane shader
     if (isOpenGL_4_3())
@@ -1026,8 +1253,8 @@ class Basic_viewer : public CGAL::QGLViewer
       buffers[bufn].bind();
       buffers[bufn].allocate(m_array_for_clipping_plane.data(),
                              static_cast<int>(m_array_for_clipping_plane.size()*sizeof(BufferType)));
-      rendering_program_clipping_plane.enableAttributeArray("vertex");
-      rendering_program_clipping_plane.setAttributeBuffer("vertex", GL_FLOAT, 0, 3);
+      rendering_program_clipping_plane.enableAttributeArray("a_Pos");
+      rendering_program_clipping_plane.setAttributeBuffer("a_Pos", GL_FLOAT, 0, 3);
 
       buffers[bufn].release();
 
@@ -1064,13 +1291,13 @@ class Basic_viewer : public CGAL::QGLViewer
                         1.0f );
 
     CGAL::Bbox_3 bb;
-    if (bb==gBuffer.bounding_box()) // Case of "empty" bounding box
+    if (bb==m_scene.bounding_box()) // Case of "empty" bounding box
     {
       bb=Local_point(CGAL::ORIGIN).bbox();
       bb=bb + Local_point(1,1,1).bbox(); // To avoid a warning from Qglviewer
     }
     else
-    { bb=gBuffer.bounding_box(); }
+    { bb=m_scene.bounding_box(); }
 
     QVector4D position((bb.xmax()-bb.xmin())/2,
                        (bb.ymax()-bb.ymin())/2,
@@ -1078,14 +1305,14 @@ class Basic_viewer : public CGAL::QGLViewer
     GLfloat shininess =  1.0f;
 
     rendering_program_face.bind();
-    int mvpLocation = rendering_program_face.uniformLocation("mvp_matrix");
-    int mvLocation = rendering_program_face.uniformLocation("mv_matrix");
+    int mvpLocation = rendering_program_face.uniformLocation("u_Mvp");
+    int mvLocation = rendering_program_face.uniformLocation("u_Mv");
     int lightLocation[5];
-    lightLocation[0] = rendering_program_face.uniformLocation("light_pos");
-    lightLocation[1] = rendering_program_face.uniformLocation("light_diff");
-    lightLocation[2] = rendering_program_face.uniformLocation("light_spec");
-    lightLocation[3] = rendering_program_face.uniformLocation("light_amb");
-    lightLocation[4] = rendering_program_face.uniformLocation("spec_power");
+    lightLocation[0] = rendering_program_face.uniformLocation("u_LightPos");
+    lightLocation[1] = rendering_program_face.uniformLocation("u_LightDiff");
+    lightLocation[2] = rendering_program_face.uniformLocation("u_LightSpec");
+    lightLocation[3] = rendering_program_face.uniformLocation("u_LightAmb");
+    lightLocation[4] = rendering_program_face.uniformLocation("u_SpecPower");
 
     rendering_program_face.setUniformValue(lightLocation[0], position);
     rendering_program_face.setUniformValue(lightLocation[1], diffuse);
@@ -1097,10 +1324,21 @@ class Basic_viewer : public CGAL::QGLViewer
     rendering_program_face.release();
 
     rendering_program_p_l.bind();
-    int mvpLocation2 = rendering_program_p_l.uniformLocation("mvp_matrix");
-    rendering_program_p_l.setUniformValue(mvpLocation2, mvpMatrix);
+    mvpLocation = rendering_program_p_l.uniformLocation("u_Mvp");
+    rendering_program_p_l.setUniformValue(mvpLocation, mvpMatrix);
     rendering_program_p_l.release();
 
+    // cylinder edge feature
+    rendering_program_cylinder.bind();
+    mvpLocation = rendering_program_cylinder.uniformLocation("u_Mvp");
+    rendering_program_cylinder.setUniformValue(mvpLocation, mvpMatrix);
+    rendering_program_cylinder.release();
+
+    // sphere vertex feature
+    rendering_program_sphere.bind();
+    mvpLocation = rendering_program_sphere.uniformLocation("u_Mvp");
+    rendering_program_sphere.setUniformValue(mvpLocation, mvpMatrix);
+    rendering_program_sphere.release();
 
     if (isOpenGL_4_3())
     {
@@ -1110,12 +1348,49 @@ class Basic_viewer : public CGAL::QGLViewer
       { clipping_mMatrix.data()[i] =  m_frame_plane->matrix()[i]; }
 
       rendering_program_clipping_plane.bind();
-      int vpLocation = rendering_program_clipping_plane.uniformLocation("vp_matrix");
-      int mLocation = rendering_program_clipping_plane.uniformLocation("m_matrix");
+      int vpLocation = rendering_program_clipping_plane.uniformLocation("u_Vp");
+      int mLocation = rendering_program_clipping_plane.uniformLocation("u_M");
       rendering_program_clipping_plane.setUniformValue(vpLocation, mvpMatrix);
       rendering_program_clipping_plane.setUniformValue(mLocation, clipping_mMatrix);
       rendering_program_clipping_plane.release();
     }
+
+    if (isOpenGL_4_3())
+    {
+      rendering_program_normal.bind();
+
+      QMatrix4x4 projection;
+      double mat[16];
+      viewer->camera()->getProjectionMatrix(mat);
+      for(unsigned int i=0; i < 16; i++)
+      {
+        projection.data()[i] = (float)mat[i];
+      }
+      
+      int mvLocation = rendering_program_normal.uniformLocation("u_Mv");
+      int pLocation = rendering_program_normal.uniformLocation("u_Projection");
+      rendering_program_normal.setUniformValue(mvLocation, mvMatrix);
+      rendering_program_normal.setUniformValue(pLocation, projection);
+      rendering_program_normal.release();
+    }
+
+    if (isOpenGL_4_3())
+    {
+      rendering_program_triangle.bind();
+
+      int mvpLocation = rendering_program_triangle.uniformLocation("u_Mvp");
+      rendering_program_triangle.setUniformValue(mvpLocation, mvpMatrix);
+      rendering_program_triangle.release();
+    }
+
+    if (isOpenGL_4_3())
+    {
+      rendering_program_line.bind();
+
+      int mvpLocation = rendering_program_line.uniformLocation("u_Mvp");
+      rendering_program_line.setUniformValue(mvpLocation, mvpMatrix);
+      rendering_program_line.release();
+    }
   }
 
   void set_camera_mode()
@@ -1128,8 +1403,8 @@ class Basic_viewer : public CGAL::QGLViewer
       constraint.setTranslationConstraintType(CGAL::qglviewer::AxisPlaneConstraint::FREE);
 
       double cx=0., cy=0., cz=0.;
-      if (gBuffer.has_zero_x())      { cx=1.; }
-      else if (gBuffer.has_zero_y()) { cy=1.; }
+      if (m_scene.has_zero_x())      { cx=1.; }
+      else if (m_scene.has_zero_y()) { cy=1.; }
       else                           { cz=1.; }
 
       camera()->setViewDirection(CGAL::qglviewer::Vec(-cx,-cy,-cz));
@@ -1154,6 +1429,7 @@ class Basic_viewer : public CGAL::QGLViewer
     glPolygonOffset(1.f,1.f);
     glClearColor(1.0f,1.0f,1.0f,0.0f);
     glDisable(GL_BLEND);
+    glEnable(GL_PROGRAM_POINT_SIZE);
     glEnable(GL_LINE_SMOOTH);
     glDisable(GL_POLYGON_SMOOTH_HINT);
     glBlendFunc(GL_ONE, GL_ZERO);
@@ -1162,13 +1438,13 @@ class Basic_viewer : public CGAL::QGLViewer
     compile_shaders();
 
     CGAL::Bbox_3 bb;
-    if (bb==gBuffer.bounding_box()) // Case of "empty" bounding box
+    if (bb==m_scene.bounding_box()) // Case of "empty" bounding box
     {
       bb=Local_point(CGAL::ORIGIN).bbox();
       bb=bb + Local_point(1,1,1).bbox(); // To avoid a warning from Qglviewer
     }
     else
-    { bb=gBuffer.bounding_box(); }
+    { bb=m_scene.bounding_box(); }
     this->camera()->setSceneBoundingBox(CGAL::qglviewer::Vec(bb.xmin(),
                                                        bb.ymin(),
                                                        bb.zmin()),
@@ -1178,21 +1454,33 @@ class Basic_viewer : public CGAL::QGLViewer
 
     m_frame_plane=new CGAL::qglviewer::ManipulatedFrame;
 
+    // Check for geometry shader availability
+    int max_geometry_output_vertices = 0;
+    glGetIntegerv(GL_MAX_GEOMETRY_OUTPUT_VERTICES, &max_geometry_output_vertices);
+    int max_geometry_output_components = 0;
+    glGetIntegerv(GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS, &max_geometry_output_components);
+
+    if (max_geometry_output_vertices < 128 || max_geometry_output_components < 1024)
+    {
+      std::cout << "Cylinder edge and sphere vertex feature disabled! (max_geometry_output_vertices=" << max_geometry_output_vertices << ", max_geometry_output_components=" << max_geometry_output_components << ")\n";
+      m_geometry_feature_enabled = false; 
+    }
+
     this->showEntireScene();
   }
 
   void generate_clipping_plane()
   {
-    qreal size=((gBuffer.bounding_box().xmax()-gBuffer.bounding_box().xmin()) +
-                (gBuffer.bounding_box().ymax()-gBuffer.bounding_box().ymin()) +
-                (gBuffer.bounding_box().zmax()-gBuffer.bounding_box().zmin()));
-    const unsigned int nbSubdivisions=30;
+    qreal size=((m_scene.bounding_box().xmax()-m_scene.bounding_box().xmin()) +
+                (m_scene.bounding_box().ymax()-m_scene.bounding_box().ymin()) +
+                (m_scene.bounding_box().zmax()-m_scene.bounding_box().zmin()));
+    const unsigned int nb_subdivisions=30;
 
     auto& array = m_array_for_clipping_plane;
     array.clear();
-    for (unsigned int i=0; i<=nbSubdivisions; ++i)
+    for (unsigned int i=0; i<=nb_subdivisions; ++i)
     {
-      const float pos = float(size*(2.0*i/nbSubdivisions-1.0));
+      const float pos = float(size*(2.0*i/nb_subdivisions-1.0));
       array.push_back(pos);
       array.push_back(float(-size));
       array.push_back(0.f);
@@ -1209,9 +1497,30 @@ class Basic_viewer : public CGAL::QGLViewer
       array.push_back(pos);
       array.push_back(0.f);
     }
+
+    // Normal 
+    array.push_back(0.f);
+    array.push_back(0.f);
+    array.push_back(0.f);
+    array.push_back(0.f);
+    array.push_back(0.f);
+    array.push_back(1.f);
   }
 
-  virtual void keyPressEvent(QKeyEvent *e)
+  virtual void mouseDoubleClickEvent(QMouseEvent *e) 
+  {
+    if ((e->modifiers()==::Qt::ShiftModifier) && (e->button()==::Qt::LeftButton))
+    {
+      if (manipulatedFrame())
+      {
+        camera()->frame()->alignWithFrame(manipulatedFrame(), true);
+      }
+    } else {
+      CGAL::QGLViewer::mouseDoubleClickEvent(e);
+    }
+  }
+
+  virtual void keyPressEvent(QKeyEvent *e) 
   {
     if(!on_key_pressed || !on_key_pressed(e, this))
     {
@@ -1258,8 +1567,8 @@ class Basic_viewer : public CGAL::QGLViewer
       }
       else if ((e->key()==::Qt::Key_M) && (modifiers==::Qt::NoButton))
       {
-        m_use_mono_color=!m_use_mono_color;
-        displayMessage(QString("Mono color=%1.").arg(m_use_mono_color?"true":"false"));
+        m_use_default_color=!m_use_default_color;
+        displayMessage(QString("Mono color=%1.").arg(m_use_default_color?"true":"false"));
         update();
       }
       else if ((e->key()==::Qt::Key_N) && (modifiers==::Qt::NoButton))
@@ -1270,8 +1579,8 @@ class Basic_viewer : public CGAL::QGLViewer
       }
       else if ((e->key()==::Qt::Key_S) && (modifiers==::Qt::NoButton))
       {
-        m_flatShading=!m_flatShading;
-        if (m_flatShading)
+        m_flat_shading=!m_flat_shading;
+        if (m_flat_shading)
           displayMessage("Flat shading.");
         else
           displayMessage("Gouraud shading.");
@@ -1333,14 +1642,14 @@ class Basic_viewer : public CGAL::QGLViewer
       }
       else if ((e->key()==::Qt::Key_Plus) && (modifiers.testFlag(::Qt::ControlModifier)))
       {
-        m_size_points+=.5;
-        displayMessage(QString("Size of points=%1.").arg(m_size_points));
+        m_size_vertices+=.5;
+        displayMessage(QString("Size of points=%1.").arg(m_size_vertices));
         update();
       }
       else if ((e->key()==::Qt::Key_Minus) && (modifiers.testFlag(::Qt::ControlModifier)))
       {
-        if (m_size_points>.5) m_size_points-=.5;
-        displayMessage(QString("Size of points=%1.").arg(m_size_points));
+        if (m_size_vertices>.5) m_size_vertices-=.5;
+        displayMessage(QString("Size of points=%1.").arg(m_size_vertices));
         update();
       }
       else if ((e->key()==::Qt::Key_PageUp) && (modifiers==::Qt::NoButton))
@@ -1428,6 +1737,47 @@ class Basic_viewer : public CGAL::QGLViewer
           update();
         }
       }
+      else if ((e->key()==::Qt::Key_V) && (modifiers==::Qt::ControlModifier))
+      {
+        m_draw_sphere_vertex = !m_draw_sphere_vertex;
+        displayMessage(QString("Draw sphere vertex=%1.").arg(m_draw_sphere_vertex?"true":"false"));
+        update();
+      }
+      else if ((e->key()==::Qt::Key_E) && (modifiers==::Qt::ControlModifier))
+      {
+        m_draw_cylinder_edge = !m_draw_cylinder_edge;
+        displayMessage(QString("Draw cylinder edge=%1.").arg(m_draw_cylinder_edge?"true":"false"));
+        update();
+      }
+      else if ((e->key()==::Qt::Key_N) && (modifiers==::Qt::ControlModifier))
+      {
+        m_draw_normals = !m_draw_normals;
+        displayMessage(QString("Draw normals=%1.").arg(m_draw_normals?"true":"false"));
+        update();
+      }
+      else if ((e->key()==::Qt::Key_T) && (modifiers==::Qt::ControlModifier))
+      {
+        m_draw_mesh_triangles = !m_draw_mesh_triangles;
+        displayMessage(QString("Draw triangles=%1.").arg(m_draw_mesh_triangles?"true":"false"));
+        update();
+      }
+      else if ((e->key()==::Qt::Key_M) && (modifiers==::Qt::ControlModifier))
+      {
+        m_use_default_color_normal = !m_use_default_color_normal;
+        displayMessage(QString("Normal mono color=%1.").arg(m_use_default_color_normal?"true":"false"));
+        update();
+      }
+      else if ((e->key()==::Qt::Key_N) && (modifiers==::Qt::ShiftModifier))
+      {
+        m_display_face_normal = !m_display_face_normal;
+        displayMessage(QString("Display face normal=%1.").arg(m_display_face_normal?"true":"false"));
+        update();
+      }
+      else if ((e->key()==::Qt::Key_F2))
+      {
+        capture_screenshot(QString("./screenshot.png"));
+        displayMessage(QString("Screenshot saved in ./screenshot"));
+      }
       else
       { CGAL::QGLViewer::keyPressEvent(e); } // By default call QGLViewer key press
     }
@@ -1467,22 +1817,40 @@ class Basic_viewer : public CGAL::QGLViewer
     text += "Press <b>Escape</b> to exit the viewer.";
     return text;
   }
-public:
+
+  void capture_screenshot(const QString& file_path)
+  {
+    QScreen *screen;
+    screen = QApplication::primaryScreen();
+
+    auto geom = screen->geometry();
+    auto qpx_pixmap = screen->grabWindow(this->winId());
+    qpx_pixmap.save(file_path);
+  }
+
+public: 
   std::function<bool(QKeyEvent *, CGAL::Qt::Basic_viewer *)> on_key_pressed;
 
 protected:
-  const Graphics_scene& gBuffer;
+  const Graphics_scene& m_scene;
 
   bool m_draw_vertices;
   bool m_draw_edges;
   bool m_draw_rays;
   bool m_draw_lines;
   bool m_draw_faces;
-  bool m_flatShading;
-  bool m_use_mono_color;
-  bool m_inverse_normal;
   bool m_draw_text;
+  bool m_draw_normals;
+  bool m_draw_cylinder_edge;
+  bool m_draw_sphere_vertex;
+  bool m_draw_mesh_triangles;
+  bool m_flat_shading;
+  bool m_use_default_color;
+  bool m_use_default_color_normal;
+  bool m_display_face_normal;
+  bool m_inverse_normal;
   bool m_no_2D_mode;
+  bool m_geometry_feature_enabled;
 
   enum {
     CLIPPING_PLANE_OFF = 0,
@@ -1499,17 +1867,16 @@ class Basic_viewer : public CGAL::QGLViewer
   // filled by users but by the basic viewer.
   std::vector<BufferType> m_array_for_clipping_plane;
 
-  double m_size_points;
-  double m_size_edges;
+  double m_size_vertices;
+  double m_size_edges; 
   double m_size_rays;
   double m_size_lines;
+  double m_size_normals; 
+
+  double m_height_factor_normals; 
 
-  CGAL::IO::Color m_vertices_mono_color;
-  CGAL::IO::Color m_edges_mono_color;
-  CGAL::IO::Color m_rays_mono_color;
-  CGAL::IO::Color m_lines_mono_color;
-  CGAL::IO::Color m_faces_mono_color;
-  QVector4D   m_ambient_color;
+  CGAL::IO::Color m_default_color_normal;
+  QVector4D m_ambient_color;
 
   bool m_are_buffers_initialized;
 
@@ -1523,24 +1890,25 @@ class Basic_viewer : public CGAL::QGLViewer
 
   // The following enum gives the indices of the different vao.
   enum
-    { VAO_MONO_POINTS=0,
-      VAO_COLORED_POINTS,
-      VAO_MONO_SEGMENTS,
-      VAO_COLORED_SEGMENTS,
-      VAO_MONO_RAYS,
-      VAO_COLORED_RAYS,
-      VAO_MONO_LINES,
-      VAO_COLORED_LINES,
-      VAO_MONO_FACES,
-      VAO_COLORED_FACES,
-      VAO_CLIPPING_PLANE,
-      NB_VAO_BUFFERS
-    };
+  { 
+    VAO_POINTS=0,
+    VAO_SEGMENTS,
+    VAO_RAYS,
+    VAO_LINES,
+    VAO_FACES,
+    VAO_CLIPPING_PLANE,
+    NB_VAO_BUFFERS
+  };
   QOpenGLVertexArrayObject vao[NB_VAO_BUFFERS];
 
   QOpenGLShaderProgram rendering_program_face;
   QOpenGLShaderProgram rendering_program_p_l;
+  QOpenGLShaderProgram rendering_program_line;
   QOpenGLShaderProgram rendering_program_clipping_plane;
+  QOpenGLShaderProgram rendering_program_sphere;
+  QOpenGLShaderProgram rendering_program_cylinder;
+  QOpenGLShaderProgram rendering_program_normal;
+  QOpenGLShaderProgram rendering_program_triangle;
 
   // variables for clipping plane
   bool clipping_plane_rendering = true; // will be toggled when alt+c is pressed, which is used for indicating whether or not to render the clipping plane ;
@@ -1617,7 +1985,7 @@ using Qt::Basic_viewer;
 
 inline
 void draw_graphics_scene(const Graphics_scene& graphics_scene,
-                         const char *title="CGAL Basic Viewer")
+                         const char *title="CGAL Basic Viewer (Qt)")
 {
 #if defined(CGAL_TEST_SUITE)
   bool cgal_test_suite = true;
@@ -1641,26 +2009,4 @@ void draw_graphics_scene(const Graphics_scene& graphics_scene,
 
 } // End namespace CGAL
 
-#else // CGAL_USE_BASIC_VIEWER
-
-namespace CGAL
-{
-
-  template<class ... T>
-  void draw(T...)
-  {
-    std::cerr<<"Impossible to draw, CGAL_USE_BASIC_VIEWER is not defined."<<std::endl;
-  }
-
-  inline
-  void draw_graphics_scene(const Graphics_scene&,
-                           const char* ="CGAL Basic Viewer")
-  {
-    std::cerr<<"Impossible to draw, CGAL_USE_BASIC_VIEWER is not defined."<<std::endl;
-  }
-
-} // End namespace CGAL
-
-#endif // CGAL_USE_BASIC_VIEWER
-
 #endif // CGAL_BASIC_VIEWER_H
diff --git a/Basic_viewer/include/CGAL/TODO.md b/Basic_viewer/include/CGAL/TODO.md
new file mode 100644
index 000000000000..fb33c9f0fec9
--- /dev/null
+++ b/Basic_viewer/include/CGAL/TODO.md
@@ -0,0 +1,32 @@
+# GLFW
+- Auto detection of keyboard layout
+- Set pivot point position (Shift+Right) 
+
+# Qt 
+- Fix drop of performance when normals are displayed
+- Remove CGAL_USE_BASIC_VIEWER target (Ask Laurent Rineau)
+
+# Qt & GLFW viewer 
+- Mesh selection 
+- Screenshot with Wayland (?) 
+- Only `Segment` primitive use the _SOURCE_LINE_WIDTH shaders. Do the same thing for both `lines` and `rays` primitives. 
+- Add compatibility shaders in `Basic_shaders.h` for : 
+  - `VERTEX_SOURCE_SHAPE`   
+  - `GEOMETRY_SOURCE_SPHERE`
+  - `GEOMETRY_SOURCE_CYLINDER`
+  - `VERTEX_SOURCE_CLIPPING_PLANE`
+  - `FRAGMENT_SOURCE_CLIPPING_PLANE`
+  - `VERTEX_SOURCE_LINE`
+  - `FRAGMENT_SOURCE_LINE`
+  - `GEOMETRY_SOURCE_LINE`
+  - `GEOMETRY_SOURCE_ARROW`
+  - `VERTEX_SOURCE_NORMAL`
+  - `GEOMETRY_SOURCE_NORMAL`
+  - `VERTEX_SOURCE_TRIANGLE`
+  - `GEOMETRY_SOURCE_TRIANGLE`
+  - `VERTEX_SOURCE_LINE_WIDTH`
+  - `GEOMETRY_SOURCE_LINE_WIDTH`
+
+# Graphics scene
+- Add a default size component for points, segments (, rays and lines ?) 
+- Add methods to set size of points, segments (, rays and lines ?) 
diff --git a/Boolean_set_operations_2/include/CGAL/draw_polygon_set_2.h b/Boolean_set_operations_2/include/CGAL/draw_polygon_set_2.h
index 3ae8c90a999e..e8af7da33d89 100644
--- a/Boolean_set_operations_2/include/CGAL/draw_polygon_set_2.h
+++ b/Boolean_set_operations_2/include/CGAL/draw_polygon_set_2.h
@@ -19,10 +19,10 @@
 
 #include <CGAL/license/Boolean_set_operations_2.h>
 
-#include <CGAL/Qt/Basic_viewer.h>
 #include <CGAL/Graphics_scene.h>
 #include <CGAL/Graphics_scene_options.h>
 #include <CGAL/Polygon_set_2.h>
+#include <CGAL/Basic_viewer.h>
 
 namespace CGAL {
 
@@ -166,7 +166,7 @@ void compute_elements(const PWH& pwh,
 
 } // End namespace draw_function_for_boolean_set_2
 
-#ifdef CGAL_USE_BASIC_VIEWER
+#if defined(CGAL_USE_BASIC_VIEWER_QT) || defined(CGAL_USE_BASIC_VIEWER)
 
 template <typename PolygonSet_2, typename GSOptions>
 class Polygon_set_2_basic_viewer_qt : public Basic_viewer
@@ -319,7 +319,7 @@ void draw(const CGAL_PS2_TYPE& ps,
   draw(ps, gso, title);
 }
 
-#endif // CGAL_USE_BASIC_VIEWER
+#endif // CGAL_USE_BASIC_VIEWER_QT || CGAL_USE_BASIC_VIEWER
 
 #undef CGAL_PS2_TYPE
 
diff --git a/Combinatorial_map/include/CGAL/Combinatorial_map.h b/Combinatorial_map/include/CGAL/Combinatorial_map.h
index 7bf8295c6656..69020dd99f1a 100644
--- a/Combinatorial_map/include/CGAL/Combinatorial_map.h
+++ b/Combinatorial_map/include/CGAL/Combinatorial_map.h
@@ -3707,6 +3707,9 @@ namespace CGAL {
       this->automatic_attributes_management = newval;
     }
 
+    void set_automatic_attributes_management_without_correction(bool newval)
+    { this->automatic_attributes_management = newval; }
+
     /** Create an half-edge.
      * @return a dart of the new half-edge.
      */
diff --git a/Generalized_map/include/CGAL/Generalized_map.h b/Generalized_map/include/CGAL/Generalized_map.h
index bc4c8af76be1..cf2c07b4ba1a 100644
--- a/Generalized_map/include/CGAL/Generalized_map.h
+++ b/Generalized_map/include/CGAL/Generalized_map.h
@@ -2946,6 +2946,9 @@ namespace CGAL {
       this->automatic_attributes_management = newval;
     }
 
+    void set_automatic_attributes_management_without_correction(bool newval)
+    { this->automatic_attributes_management = newval; }
+
     /** Create an half-edge.
      * @return a dart of the new half-edge.
      */
diff --git a/Installation/cmake/modules/CGAL_SetupCGAL_GLFWDependencies.cmake b/Installation/cmake/modules/CGAL_SetupCGAL_GLFWDependencies.cmake
new file mode 100644
index 000000000000..55c59381e5f5
--- /dev/null
+++ b/Installation/cmake/modules/CGAL_SetupCGAL_GLFWDependencies.cmake
@@ -0,0 +1,440 @@
+if(CGAL_SetupCGAL_GLFWDependencies_included)
+  return()
+endif()
+set(CGAL_SetupCGAL_GLFWDependencies_included TRUE)
+
+include(CMakeDependentOption)
+
+if (UNIX AND NOT APPLE)
+  if(DEFINED ENV{XDG_SESSION_TYPE})
+    set(XDG_SESSION_TYPE "$ENV{XDG_SESSION_TYPE}")
+  else()
+    set(XDG_SESSION_TYPE "")
+  endif()
+  if (XDG_SESSION_TYPE STREQUAL "wayland")
+    set(GLFW_USE_WAYLAND ON)
+  else()
+    set(GLFW_USE_WAYLAND OFF)
+  endif()
+endif()
+
+if (GLFW_USE_WAYLAND)
+  add_definitions(-DGLFW_USE_WAYLAND)
+endif()
+
+# --------------------------------------------------
+# From glfw/CMakeLists.txt and glfw/src/CMakeLists
+# --------------------------------------------------
+
+cmake_dependent_option(GLFW_BUILD_WIN32 "Build support for Win32" ON "WIN32" OFF)
+cmake_dependent_option(GLFW_BUILD_COCOA "Build support for Cocoa" ON "APPLE" OFF)
+cmake_dependent_option(GLFW_BUILD_X11 "Build support for X11" ON "UNIX; NOT APPLE; NOT GLFW_USE_WAYLAND" OFF)
+cmake_dependent_option(GLFW_BUILD_WAYLAND "Build support for Wayland" ON "UNIX; NOT APPLE; GLFW_USE_WAYLAND" OFF)
+
+cmake_dependent_option(GLFW_USE_HYBRID_HPG "Force use of high-performance GPU on hybrid systems" OFF
+                       "WIN32" OFF)
+cmake_dependent_option(USE_MSVC_RUNTIME_LIBRARY_DLL "Use MSVC runtime library DLL" ON
+                       "MSVC" OFF)
+
+list(APPEND CMAKE_MODULE_PATH .)
+
+find_package(Threads REQUIRED)
+
+#--------------------------------------------------------------------
+# Report backend selection
+#--------------------------------------------------------------------
+if (GLFW_BUILD_WIN32)
+    message(STATUS "Including Win32 support")
+endif()
+if (GLFW_BUILD_COCOA)
+    message(STATUS "Including Cocoa support")
+endif()
+if (GLFW_BUILD_WAYLAND)
+    message(STATUS "Including Wayland support")
+endif()
+if (GLFW_BUILD_X11)
+    message(STATUS "Including X11 support")
+endif()
+
+#--------------------------------------------------------------------
+# Apply Microsoft C runtime library option
+#--------------------------------------------------------------------
+if (MSVC AND NOT USE_MSVC_RUNTIME_LIBRARY_DLL)
+  if (CMAKE_VERSION VERSION_LESS 3.15)
+    foreach (flag CMAKE_C_FLAGS
+                  CMAKE_C_FLAGS_DEBUG
+                  CMAKE_C_FLAGS_RELEASE
+                  CMAKE_C_FLAGS_MINSIZEREL
+                  CMAKE_C_FLAGS_RELWITHDEBINFO)
+
+      if (flag MATCHES "/MD")
+        string(REGEX REPLACE "/MD" "/MT" ${flag} "${${flag}}")
+      endif()
+      if (flag MATCHES "/MDd")
+        string(REGEX REPLACE "/MDd" "/MTd" ${flag} "${${flag}}")
+      endif()
+
+    endforeach()
+  else()
+    set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
+  endif()
+endif()
+
+
+# Define directories for each dependency
+set(GLFW_SOURCE_DIR "${CMAKE_CURRENT_LIST_DIR}/../../../Basic_viewer/include/CGAL/GLFW/vendor/glfw")
+set(GLAD_SOURCE_DIR "${CMAKE_CURRENT_LIST_DIR}/../../../Basic_viewer/include/CGAL/GLFW/vendor/glad")
+set(STB_IMAGE_SOURCE_DIR "${CMAKE_CURRENT_LIST_DIR}/../../../Basic_viewer/include/CGAL/GLFW/vendor/glfw/deps")
+
+# Include directories for compilation
+include_directories(
+  ${GLFW_SOURCE_DIR}/include # for glfw3.h
+  ${GLAD_SOURCE_DIR}/include # for glad.h
+  ${STB_IMAGE_SOURCE_DIR}    # for stb_image_write.h 
+)
+
+file(GLOB GLFW_SOURCES ${GLFW_SOURCE_DIR}/src/internal.h
+                       ${GLFW_SOURCE_DIR}/src/platform.h
+                       ${GLFW_SOURCE_DIR}/src/mappings.h
+                       ${GLFW_SOURCE_DIR}/src/context.c
+                       ${GLFW_SOURCE_DIR}/src/init.c
+                       ${GLFW_SOURCE_DIR}/src/input.c
+                       ${GLFW_SOURCE_DIR}/src/monitor.c
+                       ${GLFW_SOURCE_DIR}/src/platform.c
+                       ${GLFW_SOURCE_DIR}/src/vulkan.c
+                       ${GLFW_SOURCE_DIR}/src/window.c
+                       ${GLFW_SOURCE_DIR}/src/egl_context.c
+                       ${GLFW_SOURCE_DIR}/src/osmesa_context.c
+                       ${GLFW_SOURCE_DIR}/src/null_platform.h
+                       ${GLFW_SOURCE_DIR}/src/null_joystick.h
+                       ${GLFW_SOURCE_DIR}/src/null_init.c
+                       ${GLFW_SOURCE_DIR}/src/null_monitor.c
+                       ${GLFW_SOURCE_DIR}/src/null_window.c
+                       ${GLFW_SOURCE_DIR}/src/null_joystick.c
+)
+add_library(glfw ${GLFW_SOURCES})
+
+if (APPLE)
+  file(GLOB GLFW_APPLE_SOURCES ${GLFW_SOURCE_DIR}/src/cocoa_time.h
+                               ${GLFW_SOURCE_DIR}/src/cocoa_time.c
+                               ${GLFW_SOURCE_DIR}/src/posix_thread.h
+                               ${GLFW_SOURCE_DIR}/src/posix_thread.c
+                               ${GLFW_SOURCE_DIR}/src/posix_module.c
+  )
+  target_sources(glfw PRIVATE ${GLFW_APPLE_SOURCES})
+elseif (WIN32)
+  file(GLOB GLFW_WIN32_SOURCES ${GLFW_SOURCE_DIR}/src/win32_time.h
+                               ${GLFW_SOURCE_DIR}/src/win32_time.c
+                               ${GLFW_SOURCE_DIR}/src/win32_thread.h
+                               ${GLFW_SOURCE_DIR}/src/win32_thread.c
+                               ${GLFW_SOURCE_DIR}/src/win32_module.c
+  )
+  target_sources(glfw PRIVATE ${GLFW_WIN32_SOURCES})
+else()
+  file(GLOB GLFW_UNIX_SOURCES ${GLFW_SOURCE_DIR}/src/posix_time.h
+                               ${GLFW_SOURCE_DIR}/src/posix_time.c
+                               ${GLFW_SOURCE_DIR}/src/posix_thread.h
+                               ${GLFW_SOURCE_DIR}/src/posix_thread.c
+                               ${GLFW_SOURCE_DIR}/src/posix_module.c
+  )
+  target_sources(glfw PRIVATE ${GLFW_UNIX_SOURCES})
+endif()
+
+if (GLFW_BUILD_COCOA)
+  file(GLOB GLFW_COCOA_SOURCES ${GLFW_SOURCE_DIR}/src/cocoa_platform.h
+                               ${GLFW_SOURCE_DIR}/src/cocoa_joystick.h
+                               ${GLFW_SOURCE_DIR}/src/cocoa_joystick.m
+                               ${GLFW_SOURCE_DIR}/src/cocoa_init.m
+                               ${GLFW_SOURCE_DIR}/src/cocoa_monitor.m
+                               ${GLFW_SOURCE_DIR}/src/cocoa_window.m
+                               ${GLFW_SOURCE_DIR}/src/nsgl_context.m
+  )
+  target_compile_definitions(glfw PRIVATE _GLFW_COCOA)
+  target_sources(glfw PRIVATE ${GLFW_COCOA_SOURCES})
+endif()
+
+if (GLFW_BUILD_WIN32)
+  file(GLOB GLFW_WIN32_SOURCES ${GLFW_SOURCE_DIR}/src/win32_platform.h
+                               ${GLFW_SOURCE_DIR}/src/win32_joystick.h
+                               ${GLFW_SOURCE_DIR}/src/win32_joystick.c
+                               ${GLFW_SOURCE_DIR}/src/win32_init.c
+                               ${GLFW_SOURCE_DIR}/src/win32_monitor.c
+                               ${GLFW_SOURCE_DIR}/src/win32_window.c
+                               ${GLFW_SOURCE_DIR}/src/wgl_context.c
+  )
+  target_compile_definitions(glfw PRIVATE _GLFW_WIN32)
+  target_sources(glfw PRIVATE ${GLFW_WIN32_SOURCES})
+endif()
+
+if (GLFW_BUILD_X11)
+  file(GLOB GLFW_X11_SOURCES ${GLFW_SOURCE_DIR}/src/x11_platform.h
+                             ${GLFW_SOURCE_DIR}/src/xkb_unicode.h
+                             ${GLFW_SOURCE_DIR}/src/xkb_unicode.c
+                             ${GLFW_SOURCE_DIR}/src/x11_init.c
+                             ${GLFW_SOURCE_DIR}/src/x11_monitor.c
+                             ${GLFW_SOURCE_DIR}/src/x11_window.c
+                             ${GLFW_SOURCE_DIR}/src/glx_context.c
+  )
+  target_compile_definitions(glfw PRIVATE _GLFW_X11)
+  target_sources(glfw PRIVATE ${GLFW_X11_SOURCES})
+endif()
+
+if (GLFW_BUILD_WAYLAND)
+  file(GLOB GLFW_WAYLAND_SOURCES ${GLFW_SOURCE_DIR}/src/wl_platform.h
+                                 ${GLFW_SOURCE_DIR}/src/xkb_unicode.h
+                                 ${GLFW_SOURCE_DIR}/src/xkb_unicode.c
+                                 ${GLFW_SOURCE_DIR}/src/wl_init.c
+                                 ${GLFW_SOURCE_DIR}/src/wl_monitor.c
+                                 ${GLFW_SOURCE_DIR}/src/wl_window.c
+  )
+  target_compile_definitions(glfw PRIVATE _GLFW_WAYLAND)
+  target_sources(glfw PRIVATE ${GLFW_WAYLAND_SOURCES})
+endif()
+
+if (GLFW_BUILD_X11 OR GLFW_BUILD_WAYLAND)
+  if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
+    target_sources(glfw PRIVATE ${GLFW_SOURCE_DIR}/src/linux_joystick.h 
+                                ${GLFW_SOURCE_DIR}/src/linux_joystick.c)
+  endif()
+  target_sources(glfw PRIVATE ${GLFW_SOURCE_DIR}/src/posix_poll.h 
+                              ${GLFW_SOURCE_DIR}/src/posix_poll.c)
+endif()
+
+if (GLFW_BUILD_WAYLAND)
+  include(CheckIncludeFiles)
+  include(CheckFunctionExists)
+  check_function_exists(memfd_create HAVE_MEMFD_CREATE)
+  if (HAVE_MEMFD_CREATE)
+    target_compile_definitions(glfw PRIVATE HAVE_MEMFD_CREATE)
+  endif()
+
+  find_program(WAYLAND_SCANNER_EXECUTABLE NAMES wayland-scanner)
+  if (NOT WAYLAND_SCANNER_EXECUTABLE)
+    message(FATAL_ERROR "Failed to find wayland-scanner")
+  endif()
+
+  set(GENERATED_WAYLAND_DIR "${CMAKE_BINARY_DIR}/wayland_files")
+  file(MAKE_DIRECTORY ${GENERATED_WAYLAND_DIR})
+  include_directories(${GENERATED_WAYLAND_DIR})
+
+  macro(generate_wayland_protocol protocol_file)
+    set(protocol_path "${GLFW_SOURCE_DIR}/deps/wayland/${protocol_file}")
+
+    string(REGEX REPLACE "\\.xml$" "-client-protocol.h" header_file ${protocol_file})
+    string(REGEX REPLACE "\\.xml$" "-client-protocol-code.h" code_file ${protocol_file})
+
+    add_custom_command(
+      OUTPUT ${GENERATED_WAYLAND_DIR}/${header_file}
+      COMMAND "${WAYLAND_SCANNER_EXECUTABLE}" client-header "${protocol_path}" ${GENERATED_WAYLAND_DIR}/${header_file}
+      DEPENDS "${protocol_path}"
+      VERBATIM)
+
+    add_custom_command(
+      OUTPUT ${GENERATED_WAYLAND_DIR}/${code_file}
+      COMMAND "${WAYLAND_SCANNER_EXECUTABLE}" private-code "${protocol_path}" ${GENERATED_WAYLAND_DIR}/${code_file}
+      DEPENDS "${protocol_path}"
+      VERBATIM)
+
+    target_sources(glfw PRIVATE ${GENERATED_WAYLAND_DIR}/${header_file} ${GENERATED_WAYLAND_DIR}/${code_file})
+  endmacro()
+
+  generate_wayland_protocol("wayland.xml")
+  generate_wayland_protocol("viewporter.xml")
+  generate_wayland_protocol("xdg-shell.xml")
+  generate_wayland_protocol("idle-inhibit-unstable-v1.xml")
+  generate_wayland_protocol("pointer-constraints-unstable-v1.xml")
+  generate_wayland_protocol("relative-pointer-unstable-v1.xml")
+  generate_wayland_protocol("fractional-scale-v1.xml")
+  generate_wayland_protocol("xdg-activation-v1.xml")
+  generate_wayland_protocol("xdg-decoration-unstable-v1.xml")
+endif()
+
+target_link_libraries(glfw PRIVATE Threads::Threads)
+
+# Workaround for CMake not knowing about .m files before version 3.16
+if (CMAKE_VERSION VERSION_LESS "3.16" AND APPLE)
+  set_source_files_properties(${GLFW_SOURCE_DIR}/src/cocoa_joystick.m
+                              ${GLFW_SOURCE_DIR}/src/cocoa_init.m
+                              ${GLFW_SOURCE_DIR}/src/cocoa_monitor.m
+                              ${GLFW_SOURCE_DIR}/src/cocoa_window.m
+                              ${GLFW_SOURCE_DIR}/src/nsgl_context.m 
+                              PROPERTIES LANGUAGE C
+  )
+endif()
+
+if (GLFW_BUILD_WIN32)
+  list(APPEND glfw_PKG_LIBS "-lgdi32")
+endif()
+
+if (GLFW_BUILD_COCOA)
+  target_link_libraries(glfw PRIVATE "-framework Cocoa"
+                                      "-framework IOKit"
+                                      "-framework CoreFoundation"
+                                      "-framework QuartzCore")
+
+  set(glfw_PKG_DEPS "")
+  set(glfw_PKG_LIBS "-framework Cocoa -framework IOKit -framework CoreFoundation -framework QuartzCore")
+endif()
+
+if (GLFW_BUILD_WAYLAND)
+  include(FindPkgConfig)
+
+  pkg_check_modules(Wayland REQUIRED
+    wayland-client>=0.2.7
+    wayland-cursor>=0.2.7
+    wayland-egl>=0.2.7
+    xkbcommon>=0.5.0)
+
+  target_include_directories(glfw PRIVATE ${Wayland_INCLUDE_DIRS})
+
+  if (NOT CMAKE_SYSTEM_NAME STREQUAL "Linux")
+    find_package(EpollShim)
+    if (EPOLLSHIM_FOUND)
+      target_include_directories(glfw PRIVATE ${EPOLLSHIM_INCLUDE_DIRS})
+      target_link_libraries(glfw PRIVATE ${EPOLLSHIM_LIBRARIES})
+    endif()
+  endif()
+endif()
+
+if (GLFW_BUILD_X11)
+  find_package(X11 REQUIRED)
+  target_include_directories(glfw PRIVATE "${X11_X11_INCLUDE_PATH}")
+
+  # Check for XRandR (modern resolution switching and gamma control)
+  if (NOT X11_Xrandr_INCLUDE_PATH)
+    message(FATAL_ERROR "RandR headers not found; install libxrandr development package")
+  endif()
+  target_include_directories(glfw PRIVATE "${X11_Xrandr_INCLUDE_PATH}")
+
+  # Check for Xinerama (legacy multi-monitor support)
+  if (NOT X11_Xinerama_INCLUDE_PATH)
+    message(FATAL_ERROR "Xinerama headers not found; install libxinerama development package")
+  endif()
+  target_include_directories(glfw PRIVATE "${X11_Xinerama_INCLUDE_PATH}")
+
+  # Check for Xkb (X keyboard extension)
+  if (NOT X11_Xkb_INCLUDE_PATH)
+    message(FATAL_ERROR "XKB headers not found; install X11 development package")
+  endif()
+  target_include_directories(glfw PRIVATE "${X11_Xkb_INCLUDE_PATH}")
+
+  # Check for Xcursor (cursor creation from RGBA images)
+  if (NOT X11_Xcursor_INCLUDE_PATH)
+    message(FATAL_ERROR "Xcursor headers not found; install libxcursor development package")
+  endif()
+  target_include_directories(glfw PRIVATE "${X11_Xcursor_INCLUDE_PATH}")
+
+  # Check for XInput (modern HID input)
+  if (NOT X11_Xi_INCLUDE_PATH)
+    message(FATAL_ERROR "XInput headers not found; install libxi development package")
+  endif()
+  target_include_directories(glfw PRIVATE "${X11_Xi_INCLUDE_PATH}")
+
+  # Check for X Shape (custom window input shape)
+  if (NOT X11_Xshape_INCLUDE_PATH)
+    message(FATAL_ERROR "X Shape headers not found; install libxext development package")
+  endif()
+  target_include_directories(glfw PRIVATE "${X11_Xshape_INCLUDE_PATH}")
+endif()
+
+if (UNIX AND NOT APPLE)
+  find_library(RT_LIBRARY rt)
+  mark_as_advanced(RT_LIBRARY)
+  if (RT_LIBRARY)
+    target_link_libraries(glfw PRIVATE "${RT_LIBRARY}")
+    list(APPEND glfw_PKG_LIBS "-lrt")
+  endif()
+
+  find_library(MATH_LIBRARY m)
+  mark_as_advanced(MATH_LIBRARY)
+  if (MATH_LIBRARY)
+    target_link_libraries(glfw PRIVATE "${MATH_LIBRARY}")
+    list(APPEND glfw_PKG_LIBS "-lm")
+  endif()
+
+  if (CMAKE_DL_LIBS)
+    target_link_libraries(glfw PRIVATE "${CMAKE_DL_LIBS}")
+    list(APPEND glfw_PKG_LIBS "-l${CMAKE_DL_LIBS}")
+  endif()
+endif()
+
+if (WIN32)
+  if (GLFW_USE_HYBRID_HPG)
+    target_compile_definitions(glfw PRIVATE _GLFW_USE_HYBRID_HPG)
+  endif()
+endif()
+
+# Enable a reasonable set of warnings
+# NOTE: The order matters here, Clang-CL matches both MSVC and Clang
+if (MSVC)
+  target_compile_options(glfw PRIVATE "/W3")
+elseif (CMAKE_C_COMPILER_ID STREQUAL "GNU" OR
+        CMAKE_C_COMPILER_ID STREQUAL "Clang" OR
+        CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
+
+  target_compile_options(glfw PRIVATE "-Wall")
+endif()
+
+if (GLFW_BUILD_WIN32)
+  target_compile_definitions(glfw PRIVATE UNICODE _UNICODE)
+endif()
+
+# HACK: When building on MinGW, WINVER and UNICODE need to be defined before
+# the inclusion of stddef.h (by glfw3.h), which is itself included before
+# win32_platform.h.  We define them here until a saner solution can be found
+# NOTE: MinGW-w64 and Visual C++ do /not/ need this hack.
+if (MINGW)
+    target_compile_definitions(glfw PRIVATE WINVER=0x0501)
+endif()
+
+# Workaround for legacy MinGW not providing XInput and DirectInput
+if (MINGW)
+    include(CheckIncludeFile)
+    check_include_file(dinput.h DINPUT_H_FOUND)
+    check_include_file(xinput.h XINPUT_H_FOUND)
+    if (NOT DINPUT_H_FOUND OR NOT XINPUT_H_FOUND)
+        target_include_directories(glfw PRIVATE "${GLFW_SOURCE_DIR}/deps/mingw")
+    endif()
+endif()
+
+# Workaround for the MS CRT deprecating parts of the standard library
+if (MSVC OR CMAKE_C_SIMULATE_ID STREQUAL "MSVC")
+    target_compile_definitions(glfw PRIVATE _CRT_SECURE_NO_WARNINGS)
+endif()
+
+# Workaround for -std=c99 on Linux disabling _DEFAULT_SOURCE (POSIX 2008 and more)
+if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
+    target_compile_definitions(glfw PRIVATE _DEFAULT_SOURCE)
+endif() 
+
+foreach(arg ${glfw_PKG_DEPS})
+    string(APPEND deps " ${arg}")
+endforeach()
+foreach(arg ${glfw_PKG_LIBS})
+    string(APPEND libs " ${arg}")
+endforeach()
+
+set(GLFW_PKG_CONFIG_REQUIRES_PRIVATE "${deps}" CACHE INTERNAL
+    "GLFW pkg-config Requires.private")
+set(GLFW_PKG_CONFIG_LIBS_PRIVATE "${libs}" CACHE INTERNAL
+    "GLFW pkg-config Libs.private")
+
+# Glad library
+file(GLOB GLAD_SOURCES ${GLAD_SOURCE_DIR}/src/glad.c)
+add_library(glad ${GLAD_SOURCES})
+
+#--------------------------------------------------------------------
+
+set(CGAL_GLFW_FOUND TRUE)
+set_property(GLOBAL PROPERTY CGAL_GLFW_FOUND TRUE)
+
+function(CGAL_setup_CGAL_GLFW_dependencies target)
+  target_link_libraries(${target} INTERFACE CGAL::CGAL)
+  target_link_libraries(${target} INTERFACE glfw)
+  target_link_libraries(${target} INTERFACE glad)
+ 
+  # Remove -Wdeprecated-copy for GCC >= 9
+  if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS "9")
+    target_compile_options(${target} INTERFACE "-Wno-deprecated-copy" "-Wno-cast-function-type")
+  endif()
+endfunction()
diff --git a/Installation/cmake/modules/CGAL_setup_target_dependencies.cmake b/Installation/cmake/modules/CGAL_setup_target_dependencies.cmake
index 820664d04981..55877da9fc8f 100644
--- a/Installation/cmake/modules/CGAL_setup_target_dependencies.cmake
+++ b/Installation/cmake/modules/CGAL_setup_target_dependencies.cmake
@@ -7,5 +7,7 @@ function(CGAL_setup_target_dependencies target)
     CGAL_setup_CGAL_ImageIO_dependencies(${target})
   elseif(${target} STREQUAL CGAL_Qt6)
     CGAL_setup_CGAL_Qt6_dependencies(${target})
+  elseif(${target} STREQUAL CGAL_GLFW)
+    CGAL_setup_CGAL_GLFW_dependencies(${target})
   endif()
 endfunction()
diff --git a/Installation/cmake/modules/FindEpollShim.cmake b/Installation/cmake/modules/FindEpollShim.cmake
new file mode 100644
index 000000000000..f34d07090efd
--- /dev/null
+++ b/Installation/cmake/modules/FindEpollShim.cmake
@@ -0,0 +1,17 @@
+# Find EpollShim
+# Once done, this will define
+#
+#   EPOLLSHIM_FOUND - System has EpollShim
+#   EPOLLSHIM_INCLUDE_DIRS - The EpollShim include directories
+#   EPOLLSHIM_LIBRARIES - The libraries needed to use EpollShim
+
+find_path(EPOLLSHIM_INCLUDE_DIRS NAMES sys/epoll.h sys/timerfd.h HINTS /usr/local/include/libepoll-shim)
+find_library(EPOLLSHIM_LIBRARIES NAMES epoll-shim libepoll-shim HINTS /usr/local/lib)
+
+if (EPOLLSHIM_INCLUDE_DIRS AND EPOLLSHIM_LIBRARIES)
+	set(EPOLLSHIM_FOUND TRUE)
+endif (EPOLLSHIM_INCLUDE_DIRS AND EPOLLSHIM_LIBRARIES)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(EpollShim DEFAULT_MSG EPOLLSHIM_LIBRARIES EPOLLSHIM_INCLUDE_DIRS)
+mark_as_advanced(EPOLLSHIM_INCLUDE_DIRS EPOLLSHIM_LIBRARIES)
diff --git a/Installation/cmake/modules/FindOSMesa.cmake b/Installation/cmake/modules/FindOSMesa.cmake
new file mode 100644
index 000000000000..3194bd91aba7
--- /dev/null
+++ b/Installation/cmake/modules/FindOSMesa.cmake
@@ -0,0 +1,18 @@
+# Try to find OSMesa on a Unix system
+#
+# This will define:
+#
+#   OSMESA_LIBRARIES   - Link these to use OSMesa
+#   OSMESA_INCLUDE_DIR - Include directory for OSMesa
+#
+# Copyright (c) 2014 Brandon Schaefer <brandon.schaefer@canonical.com>
+
+if (NOT WIN32)
+
+  find_package (PkgConfig)
+  pkg_check_modules (PKG_OSMESA QUIET osmesa)
+
+  set (OSMESA_INCLUDE_DIR ${PKG_OSMESA_INCLUDE_DIRS})
+  set (OSMESA_LIBRARIES   ${PKG_OSMESA_LIBRARIES})
+
+endif ()
diff --git a/Installation/lib/cmake/CGAL/CGALConfig.cmake b/Installation/lib/cmake/CGAL/CGALConfig.cmake
index 81f84153ddec..2693452a700a 100644
--- a/Installation/lib/cmake/CGAL/CGALConfig.cmake
+++ b/Installation/lib/cmake/CGAL/CGALConfig.cmake
@@ -134,7 +134,7 @@ if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "AppleClang" AND CMAKE_CXX_COMPILER_VERSI
 endif()
 
 foreach(comp ${CGAL_FIND_COMPONENTS})
-  if(NOT comp MATCHES "Core|ImageIO|Qt6")
+  if(NOT comp MATCHES "Core|ImageIO|Qt6|GLFW")
     message(FATAL_ERROR "The requested CGAL component ${comp} does not exist!")
   endif()
   if(comp MATCHES "Core" AND CGAL_DO_NOT_USE_BOOST_MP)
@@ -203,6 +203,20 @@ if (NOT TARGET CGAL::CGAL_Basic_viewer)
       INTERFACE_LINK_LIBRARIES CGAL::CGAL_Qt6)
 endif()
 
+if (NOT TARGET CGAL::CGAL_Basic_viewer_Qt)
+  add_library(CGAL::CGAL_Basic_viewer_Qt INTERFACE IMPORTED GLOBAL)
+    set_target_properties(CGAL::CGAL_Basic_viewer_Qt PROPERTIES
+      INTERFACE_COMPILE_DEFINITIONS "CGAL_USE_BASIC_VIEWER_QT;QT_NO_KEYWORDS"
+      INTERFACE_LINK_LIBRARIES CGAL::CGAL_Qt6)
+endif()
+
+if (NOT TARGET CGAL::CGAL_Basic_viewer_GLFW)
+  add_library(CGAL::CGAL_Basic_viewer_GLFW INTERFACE IMPORTED GLOBAL)
+    set_target_properties(CGAL::CGAL_Basic_viewer_GLFW PROPERTIES
+      INTERFACE_COMPILE_DEFINITIONS "CGAL_USE_BASIC_VIEWER_GLFW;"
+      INTERFACE_LINK_LIBRARIES CGAL::CGAL_GLFW)
+endif()
+
 #warning: the order in this list has to match the enum in Exact_type_selector
 set(CGAL_CMAKE_EXACT_NT_BACKEND_OPTIONS GMP_BACKEND GMPXX_BACKEND BOOST_GMP_BACKEND BOOST_BACKEND LEDA_BACKEND MP_FLOAT_BACKEND Default)
 set(CGAL_CMAKE_EXACT_NT_BACKEND "Default" CACHE STRING "Setting for advanced users that what to change the default number types used in filtered kernels. Some options might not be working depending on how you configured your build.")
diff --git a/Linear_cell_complex/examples/Linear_cell_complex/CMakeLists.txt b/Linear_cell_complex/examples/Linear_cell_complex/CMakeLists.txt
index 27ab5b842c5f..f3ca6e065bfa 100644
--- a/Linear_cell_complex/examples/Linear_cell_complex/CMakeLists.txt
+++ b/Linear_cell_complex/examples/Linear_cell_complex/CMakeLists.txt
@@ -29,6 +29,7 @@ create_single_source_cgal_program("voronoi_2.cpp")
 create_single_source_cgal_program("voronoi_3.cpp")
 
 create_single_source_cgal_program("draw_linear_cell_complex.cpp")
+
 if(CGAL_Qt6_FOUND)
   target_link_libraries(draw_linear_cell_complex PUBLIC CGAL::CGAL_Basic_viewer)
   target_link_libraries(linear_cell_complex_3_incremental_builder PUBLIC CGAL::CGAL_Basic_viewer)
diff --git a/Linear_cell_complex/include/CGAL/Linear_cell_complex_base.h b/Linear_cell_complex/include/CGAL/Linear_cell_complex_base.h
index 6681a4bb8b3c..b1943bca3c4b 100644
--- a/Linear_cell_complex/include/CGAL/Linear_cell_complex_base.h
+++ b/Linear_cell_complex/include/CGAL/Linear_cell_complex_base.h
@@ -836,7 +836,7 @@ namespace CGAL {
 
     /** Set the status of the management of the attributes of the Map
      */
-    void set_update_attributes(bool newval)
+    void set_automatic_attributes_management(bool newval)
     {
       if (this->automatic_attributes_management == false && newval == true)
       {
@@ -847,6 +847,10 @@ namespace CGAL {
 
       this->automatic_attributes_management = newval;
     }
+
+    void set_automatic_attributes_management_without_correction(bool newval)
+    { this->automatic_attributes_management = newval; }
+
   };
 
 } // namespace CGAL
diff --git a/Linear_cell_complex/include/CGAL/draw_linear_cell_complex.h b/Linear_cell_complex/include/CGAL/draw_linear_cell_complex.h
index 9034d419963c..b5a002a21da9 100644
--- a/Linear_cell_complex/include/CGAL/draw_linear_cell_complex.h
+++ b/Linear_cell_complex/include/CGAL/draw_linear_cell_complex.h
@@ -13,7 +13,7 @@
 #ifndef CGAL_DRAW_LCC_H
 #define CGAL_DRAW_LCC_H
 
-#include <CGAL/Qt/Basic_viewer.h>
+#include <CGAL/Basic_viewer.h>
 #include <CGAL/Graphics_scene.h>
 #include <CGAL/Graphics_scene_options.h>
 #include <CGAL/Linear_cell_complex_base.h>
@@ -289,8 +289,6 @@ void add_to_graphics_scene(const CGAL_LCC_TYPE& alcc,
   add_to_graphics_scene(alcc, graphics_scene, gso);
 }
 
-#ifdef CGAL_USE_BASIC_VIEWER
-
 // Specialization of draw function for a LCC, with a drawing graphics scene options.
 template<unsigned int d_, unsigned int ambient_dim, class Traits_,
          class Items_, class Alloc_,
@@ -317,8 +315,6 @@ void draw(const CGAL_LCC_TYPE& alcc, const char *title="LCC Basic Viewer")
   draw_graphics_scene(buffer, title);
 }
 
-#endif // CGAL_USE_BASIC_VIEWER
-
 #undef CGAL_LCC_TYPE
 
 } // End namespace CGAL
diff --git a/Nef_3/doc/Nef_3/CGAL/draw_nef_3.h b/Nef_3/doc/Nef_3/CGAL/draw_nef_3.h
index a9618a3d629d..6cb693d8a3a7 100644
--- a/Nef_3/doc/Nef_3/CGAL/draw_nef_3.h
+++ b/Nef_3/doc/Nef_3/CGAL/draw_nef_3.h
@@ -5,8 +5,9 @@ namespace CGAL {
 
 opens a new window and draws a nef polyhedron. Parameters of the drawing are taken from the optional graphics scene options parameter.
 
-A call to this function blocks the execution of the program until the drawing window is closed. This function requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined.
-Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`.
+A call to this function blocks the execution of the program until the drawing window is closed. This function requires `CGAL_Qt6` or `CGAL_GLFW` depending on which basic viewer you want to use (if you use both, the Qt viewer will be used by default), and is only available if the macro `CGAL_USE_BASIC_VIEWER`/`CGAL_USE_BASIC_VIEWER_QT` (Qt viewer) or `CGAL_USE_BASIC_VIEWER_GLFW` (GLFW viewer) is defined.
+- Linking with the cmake target `CGAL::CGAL_Basic_viewer`/`CGAL::CGAL_Basic_viewer_Qt` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`/`CGAL_USE_BASIC_VIEWER_QT`.
+- Linking with the cmake target `CGAL::CGAL_Basic_viewer_GLFW` will link with `CGAL_GLFW` and add the definition `CGAL_USE_BASIC_VIEWER_GLFW`.
 
 \tparam NP3 which must be an instantiation of a `CGAL::Nef_polyhedron_3<...>`.
 \tparam GSOptions a model of `GraphicsSceneOptions` concept.
diff --git a/Nef_3/include/CGAL/draw_nef_3.h b/Nef_3/include/CGAL/draw_nef_3.h
index aac531bcd5d4..a2160b7fad11 100644
--- a/Nef_3/include/CGAL/draw_nef_3.h
+++ b/Nef_3/include/CGAL/draw_nef_3.h
@@ -15,7 +15,7 @@
 #define DRAW_NEF_3_H
 
 #include <CGAL/license/Nef_3.h>
-#include <CGAL/Qt/Basic_viewer.h>
+#include <CGAL/Basic_viewer.h>
 #include <CGAL/Graphics_scene.h>
 #include <CGAL/Graphics_scene_options.h>
 #include <CGAL/Nef_polyhedron_3.h>
@@ -278,8 +278,6 @@ void add_to_graphics_scene(const CGAL_NEF3_TYPE &anef,
   add_to_graphics_scene(anef, graphics_scene, gs_options);
 }
 
-#ifdef CGAL_USE_BASIC_VIEWER
-
 // Specialization of draw function
 template <typename Kernel_, typename Items_, typename Mark_,
           class GSOptions>
@@ -301,8 +299,6 @@ void draw(const CGAL_NEF3_TYPE &anef,
   draw_graphics_scene(buffer, title);
 }
 
-#endif // CGAL_USE_BASIC_VIEWER
-
 #undef CGAL_NEF3_TYPE
 
 } // End namespace CGAL
diff --git a/Periodic_2_triangulation_2/include/CGAL/draw_periodic_2_triangulation_2.h b/Periodic_2_triangulation_2/include/CGAL/draw_periodic_2_triangulation_2.h
index 048494256b32..e0a636b0854b 100644
--- a/Periodic_2_triangulation_2/include/CGAL/draw_periodic_2_triangulation_2.h
+++ b/Periodic_2_triangulation_2/include/CGAL/draw_periodic_2_triangulation_2.h
@@ -14,7 +14,7 @@
 #define DRAW_PERIODIC_2_TRIANGULATION_2_H
 
 #include <CGAL/license/Periodic_2_triangulation_2.h>
-#include <CGAL/Qt/Basic_viewer.h>
+#include <CGAL/Basic_viewer.h>
 #include <CGAL/Graphics_scene.h>
 #include <CGAL/Graphics_scene_options.h>
 #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
@@ -220,7 +220,7 @@ void add_to_graphics_scene(const CGAL_P2T2_TYPE& p2t2,
   add_to_graphics_scene(p2t2, graphics_scene, gs_options);
 }
 
-#ifdef CGAL_USE_BASIC_VIEWER
+#if defined(CGAL_USE_BASIC_VIEWER_QT) || defined(CGAL_USE_BASIC_VIEWER)
 
 // Specialization of draw function
 template<class Gt, class Tds, class GSOptions>
@@ -278,7 +278,7 @@ void draw(const CGAL_P2T2_TYPE& ap2t2,
   draw(ap2t2, gs_options, title);
 }
 
-#endif // CGAL_USE_BASIC_VIEWER
+#endif // CGAL_USE_BASIC_VIEWER_QT || CGAL_USE_BASIC_VIEWER
 
 #undef CGAL_P2T2_TYPE
 
diff --git a/Point_set_3/include/CGAL/draw_point_set_3.h b/Point_set_3/include/CGAL/draw_point_set_3.h
index 35ce674f3a3a..0a59cef4915f 100644
--- a/Point_set_3/include/CGAL/draw_point_set_3.h
+++ b/Point_set_3/include/CGAL/draw_point_set_3.h
@@ -15,7 +15,7 @@
 #define CGAL_DRAW_POINT_SET_3_H
 
 #include <CGAL/license/Point_set_3.h>
-#include <CGAL/Qt/Basic_viewer.h>
+#include <CGAL/Basic_viewer.h>
 #include <CGAL/Graphics_scene.h>
 #include <CGAL/Graphics_scene_options.h>
 #include <CGAL/Point_set_3.h>
@@ -28,8 +28,9 @@ namespace CGAL {
 
 opens a new window and draws a point set. Parameters of the drawing are taken from the optional graphics scene options parameter.
 
-A call to this function blocks the execution of the program until the drawing window is closed. This function requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined.
-Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`.
+A call to this function blocks the execution of the program until the drawing window is closed. This function requires `CGAL_Qt6` or `CGAL_GLFW` depending on which basic viewer you want to use (if you use both, the Qt viewer will be used by default), and is only available if the macro `CGAL_USE_BASIC_VIEWER`/`CGAL_USE_BASIC_VIEWER_QT` (Qt viewer) or `CGAL_USE_BASIC_VIEWER_GLFW` (GLFW viewer) is defined.
+- Linking with the cmake target `CGAL::CGAL_Basic_viewer`/`CGAL::CGAL_Basic_viewer_Qt` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`/`CGAL_USE_BASIC_VIEWER_QT`.
+- Linking with the cmake target `CGAL::CGAL_Basic_viewer_GLFW` will link with `CGAL_GLFW` and add the definition `CGAL_USE_BASIC_VIEWER_GLFW`.
 
 \tparam PS which must be an instantiation of a `CGAL::Point_set_3<...>`.
 \tparam GSOptions a model of `GraphicsSceneOptions` concept.
@@ -147,8 +148,6 @@ void add_to_graphics_scene(const Point_set_3<P, V>& apointset,
   add_to_graphics_scene(apointset, graphics_scene, gs_options);
 }
 
-#ifdef CGAL_USE_BASIC_VIEWER
-
 // Specialization of draw function.
   template <class P, class V, class GSOptions>
 void draw(const Point_set_3<P, V>& apointset,
@@ -169,8 +168,6 @@ void draw(const Point_set_3<P, V>& apointset,
   draw_graphics_scene(buffer, title);
 }
 
-#endif // CGAL_USE_BASIC_VIEWER
-
 } // End namespace CGAL
 
 #endif // CGAL_DRAW_POINT_SET_3_H
diff --git a/Polygon/include/CGAL/draw_multipolygon_with_holes_2.h b/Polygon/include/CGAL/draw_multipolygon_with_holes_2.h
index 8950956786eb..ddcc967a1de2 100644
--- a/Polygon/include/CGAL/draw_multipolygon_with_holes_2.h
+++ b/Polygon/include/CGAL/draw_multipolygon_with_holes_2.h
@@ -18,7 +18,7 @@
 #ifndef CGAL_DRAW_MULTIPOLYGON_WITH_HOLES_2_H
 #define CGAL_DRAW_MULTIPOLYGON_WITH_HOLES_2_H
 
-#include <CGAL/Qt/Basic_viewer.h>
+#include <CGAL/Basic_viewer.h>
 
 #ifdef DOXYGEN_RUNNING
 namespace CGAL {
@@ -44,7 +44,7 @@ void draw(const MPH& aph);
 
 #endif
 
-#ifdef CGAL_USE_BASIC_VIEWER
+#if defined(CGAL_USE_BASIC_VIEWER_QT) || defined(CGAL_USE_BASIC_VIEWER) 
 
 #include <CGAL/Qt/init_ogl_context.h>
 #include <CGAL/Multipolygon_with_holes_2.h>
@@ -207,6 +207,6 @@ void draw(const CGAL::Multipolygon_with_holes_2<T, C>& mpwh,
 
 } // End namespace CGAL
 
-#endif // CGAL_USE_BASIC_VIEWER
+#endif // CGAL_USE_BASIC_VIEWER_QT || CGAL_USE_BASIC_VIEWER
 
 #endif // CGAL_DRAW_MULTIPOLYGON_WITH_HOLES_2_H
diff --git a/Polygon/include/CGAL/draw_polygon_with_holes_2.h b/Polygon/include/CGAL/draw_polygon_with_holes_2.h
index ff6fde2e8c6f..d7426d73776f 100644
--- a/Polygon/include/CGAL/draw_polygon_with_holes_2.h
+++ b/Polygon/include/CGAL/draw_polygon_with_holes_2.h
@@ -18,7 +18,7 @@
 #ifndef CGAL_DRAW_POLYGON_WITH_HOLES_2_H
 #define CGAL_DRAW_POLYGON_WITH_HOLES_2_H
 
-#include <CGAL/Qt/Basic_viewer.h>
+#include <CGAL/Basic_viewer.h>
 #include <CGAL/Graphics_scene.h>
 #include <CGAL/Graphics_scene_options.h>
 #include <CGAL/Polygon_with_holes_2.h>
@@ -31,8 +31,9 @@ namespace CGAL {
 
 opens a new window and draws a 2D polygon with holes. Parameters of the drawing are taken from the optional graphics scene options parameter.
 
-A call to this function blocks the execution of the program until the drawing window is closed. This function requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined.
-Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`.
+A call to this function blocks the execution of the program until the drawing window is closed. This function requires `CGAL_Qt6` or `CGAL_GLFW` depending on which basic viewer you want to use (if you use both, the Qt viewer will be used by default), and is only available if the macro `CGAL_USE_BASIC_VIEWER`/`CGAL_USE_BASIC_VIEWER_QT` (Qt viewer) or `CGAL_USE_BASIC_VIEWER_GLFW` (GLFW viewer) is defined.
+- Linking with the cmake target `CGAL::CGAL_Basic_viewer`/`CGAL::CGAL_Basic_viewer_Qt` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`/`CGAL_USE_BASIC_VIEWER_QT`.
+- Linking with the cmake target `CGAL::CGAL_Basic_viewer_GLFW` will link with `CGAL_GLFW` and add the definition `CGAL_USE_BASIC_VIEWER_GLFW`.
 
 \tparam PH which must be an instantiation of a `CGAL::Polygon_with_holes_2<...>`.
 \tparam GSOptions a model of `GraphicsSceneOptions` concept.
@@ -212,8 +213,6 @@ void add_to_graphics_scene(const CGAL_P2_WITH_HOLES_TYPE& p2,
   add_to_graphics_scene(p2, graphics_scene, gs_options);
 }
 
-#ifdef CGAL_USE_BASIC_VIEWER
-
 // Specialization of draw function.
 template<class T, class C, class GSOptions>
 void draw(const CGAL_P2_WITH_HOLES_TYPE& ap2, const GSOptions &gs_options,
@@ -233,8 +232,6 @@ void draw(const CGAL_P2_WITH_HOLES_TYPE& ap2,
   draw_graphics_scene(buffer, title);
 }
 
-#endif // CGAL_USE_BASIC_VIEWER
-
 #undef CGAL_P2_WITH_HOLES_TYPE
 
 } // End namespace CGAL
diff --git a/Polyhedron/include/CGAL/draw_polyhedron.h b/Polyhedron/include/CGAL/draw_polyhedron.h
index c45ea4e0dd4f..357d5a509ebc 100644
--- a/Polyhedron/include/CGAL/draw_polyhedron.h
+++ b/Polyhedron/include/CGAL/draw_polyhedron.h
@@ -18,7 +18,7 @@
 #include <CGAL/Graphics_scene_options.h>
 #include <CGAL/Polyhedron_3.h>
 #include <CGAL/draw_face_graph.h>
-#include <CGAL/Qt/Basic_viewer.h>
+#include <CGAL/Basic_viewer.h>
 
 namespace CGAL
 {
@@ -48,7 +48,6 @@ void add_to_graphics_scene(const CGAL_POLY_TYPE& apoly,
 { add_to_graphics_scene_for_fg(apoly, graphics_scene); }
 
 // Specialization of draw function: require Qt and the CGAL basic viewer.
-#ifdef CGAL_USE_BASIC_VIEWER
 
 template<class PolyhedronTraits_3,
          class PolyhedronItems_3,
@@ -77,7 +76,6 @@ void draw(const CGAL_POLY_TYPE& apoly,
   add_to_graphics_scene_for_fg(apoly, buffer, gs_options);
   draw_graphics_scene(buffer, title);
 }
-#endif // CGAL_USE_BASIC_VIEWER
 
 #undef CGAL_POLY_TYPE
 
diff --git a/Straight_skeleton_2/include/CGAL/draw_straight_skeleton_2.h b/Straight_skeleton_2/include/CGAL/draw_straight_skeleton_2.h
index 8ff502ba5e3f..c31d0e1b6cd0 100644
--- a/Straight_skeleton_2/include/CGAL/draw_straight_skeleton_2.h
+++ b/Straight_skeleton_2/include/CGAL/draw_straight_skeleton_2.h
@@ -14,7 +14,7 @@
 #define CGAL_DRAW_SS2_H
 
 #include <CGAL/license/Straight_skeleton_2.h>
-#include <CGAL/Qt/Basic_viewer.h>
+#include <CGAL/Basic_viewer.h>
 #include <CGAL/Graphics_scene.h>
 #include <CGAL/Graphics_scene_options.h>
 #include <CGAL/Straight_skeleton_2.h>
@@ -180,8 +180,6 @@ void add_to_graphics_scene(const CGAL_SS_TYPE& ass2,
 }
 
 // Specialization of draw function.
-#ifdef CGAL_USE_BASIC_VIEWER
-
 template <class K, class GSOptions>
 void draw(const CGAL_SS_TYPE &ass2, const GSOptions &gs_options,
           const char *title="Straight Skeleton Basic Viewer")
@@ -200,8 +198,6 @@ void draw(const CGAL_SS_TYPE &ass2,
   draw_graphics_scene(buffer, title);
 }
 
-#endif // CGAL_USE_BASIC_VIEWER
-
 #undef CGAL_SS_TYPE
 
 } // End namespace CGAL
diff --git a/Surface_mesh/include/CGAL/draw_surface_mesh.h b/Surface_mesh/include/CGAL/draw_surface_mesh.h
index 6814f43ab695..7e905fc84069 100644
--- a/Surface_mesh/include/CGAL/draw_surface_mesh.h
+++ b/Surface_mesh/include/CGAL/draw_surface_mesh.h
@@ -20,8 +20,9 @@
 
 opens a new window and draws a surface mesh. Parameters of the drawing are taken from the optional graphics scene options parameter.
 
-A call to this function blocks the execution of the program until the drawing window is closed. This function requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined.
-Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`.
+A call to this function blocks the execution of the program until the drawing window is closed. This function requires `CGAL_Qt6` or `CGAL_GLFW` depending on which basic viewer you want to use (if you use both, the Qt viewer will be used by default), and is only available if the macro `CGAL_USE_BASIC_VIEWER`/`CGAL_USE_BASIC_VIEWER_QT` (Qt viewer) or `CGAL_USE_BASIC_VIEWER_GLFW` (GLFW viewer) is defined.
+- Linking with the cmake target `CGAL::CGAL_Basic_viewer`/`CGAL::CGAL_Basic_viewer_Qt` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`/`CGAL_USE_BASIC_VIEWER_QT`.
+- Linking with the cmake target `CGAL::CGAL_Basic_viewer_GLFW` will link with `CGAL_GLFW` and add the definition `CGAL_USE_BASIC_VIEWER_GLFW`.
 
 \tparam SM which must be an instantiation of a `CGAL::Surface_mesh<...>`.
 \tparam GSOptions a model of `GraphicsSceneOptions` concept.
@@ -93,7 +94,9 @@ void add_to_graphics_scene(const SM& sm,
 #include <CGAL/Graphics_scene_options.h>
 #include <CGAL/Surface_mesh.h>
 #include <CGAL/draw_face_graph.h>
-#include <CGAL/Qt/Basic_viewer.h>
+
+
+#include <CGAL/Basic_viewer.h>
 
 namespace CGAL {
 
@@ -164,8 +167,6 @@ void add_to_graphics_scene(const Surface_mesh<K>& amesh,
 { add_to_graphics_scene_for_fg(amesh, graphics_scene,
                                Graphics_scene_options_surface_mesh<K>(amesh)); }
 
-#ifdef CGAL_USE_BASIC_VIEWER
-
   // Specialization of draw function.
 template<class K>
 void draw(const Surface_mesh<K>& amesh,
@@ -186,8 +187,6 @@ void draw(const Surface_mesh<K>& amesh,
   draw_graphics_scene(buffer, title);
 }
 
-#endif // CGAL_USE_BASIC_VIEWER
-
 } // End namespace CGAL
 
 #endif // DOXYGEN_RUNNING
diff --git a/Triangulation_2/doc/Triangulation_2/CGAL/draw_constrained_triangulation_2.h b/Triangulation_2/doc/Triangulation_2/CGAL/draw_constrained_triangulation_2.h
index 2519bcf65b2f..745e1979407d 100644
--- a/Triangulation_2/doc/Triangulation_2/CGAL/draw_constrained_triangulation_2.h
+++ b/Triangulation_2/doc/Triangulation_2/CGAL/draw_constrained_triangulation_2.h
@@ -5,8 +5,9 @@ namespace CGAL {
 
 opens a new window and draws a constrained triangulation. If the triangulation has constraints they are drawn. The faces inside and outside of the domain, based on the property map, are drawn in different colors.
 
-A call to this function blocks the execution of the program until the drawing window is closed. This function requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined.
-Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`.
+A call to this function blocks the execution of the program until the drawing window is closed. This function requires `CGAL_Qt6` or `CGAL_GLFW` depending on which basic viewer you want to use (if you use both, the Qt viewer will be used by default), and is only available if the macro `CGAL_USE_BASIC_VIEWER`/`CGAL_USE_BASIC_VIEWER_QT` (Qt viewer) or `CGAL_USE_BASIC_VIEWER_GLFW` (GLFW viewer) is defined.
+- Linking with the cmake target `CGAL::CGAL_Basic_viewer`/`CGAL::CGAL_Basic_viewer_Qt` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`/`CGAL_USE_BASIC_VIEWER_QT`.
+- Linking with the cmake target `CGAL::CGAL_Basic_viewer_GLFW` will link with `CGAL_GLFW` and add the definition `CGAL_USE_BASIC_VIEWER_GLFW`.
 
 \tparam CT2 which must be an instantiation of a `CGAL::Constrained_triangulation_2<...>`.
 \tparam InDomainPMap a class model of `ReadablePropertyMap` with `CT2::Face_handle` as key type and `bool` as value type.
diff --git a/Triangulation_2/doc/Triangulation_2/CGAL/draw_triangulation_2.h b/Triangulation_2/doc/Triangulation_2/CGAL/draw_triangulation_2.h
index 62dfbdf28548..f8cffc47037f 100644
--- a/Triangulation_2/doc/Triangulation_2/CGAL/draw_triangulation_2.h
+++ b/Triangulation_2/doc/Triangulation_2/CGAL/draw_triangulation_2.h
@@ -5,8 +5,9 @@ namespace CGAL {
 
 opens a new window and draws a triangulation. Parameters of the drawing are taken from the optional graphics scene options parameter.
 
-A call to this function blocks the execution of the program until the drawing window is closed. This function requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined.
-Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`.
+A call to this function blocks the execution of the program until the drawing window is closed. This function requires `CGAL_Qt6` or `CGAL_GLFW` depending on which basic viewer you want to use (if you use both, the Qt viewer will be used by default), and is only available if the macro `CGAL_USE_BASIC_VIEWER`/`CGAL_USE_BASIC_VIEWER_QT` (Qt viewer) or `CGAL_USE_BASIC_VIEWER_GLFW` (GLFW viewer) is defined.
+- Linking with the cmake target `CGAL::CGAL_Basic_viewer`/`CGAL::CGAL_Basic_viewer_Qt` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`/`CGAL_USE_BASIC_VIEWER_QT`.
+- Linking with the cmake target `CGAL::CGAL_Basic_viewer_GLFW` will link with `CGAL_GLFW` and add the definition `CGAL_USE_BASIC_VIEWER_GLFW`.
 
 \tparam T2 which must be an instantiation of a `CGAL::Triangulation_2<...>`.
 \tparam GSOptions a model of `GraphicsSceneOptions` concept.
diff --git a/Triangulation_2/include/CGAL/draw_constrained_triangulation_2.h b/Triangulation_2/include/CGAL/draw_constrained_triangulation_2.h
index 05d933f92e9b..082e78a71cec 100644
--- a/Triangulation_2/include/CGAL/draw_constrained_triangulation_2.h
+++ b/Triangulation_2/include/CGAL/draw_constrained_triangulation_2.h
@@ -81,8 +81,6 @@ void add_to_graphics_scene(const CGAL_T2_TYPE& at2,
   draw_function_for_t2::compute_elements(at2, graphics_scene, gso);
 }
 
-#ifdef CGAL_USE_BASIC_VIEWER
-
 template<class Gt, class Tds, class Itag, class InDomainPmap>
 void draw(const CGAL_T2_TYPE& at2, InDomainPmap ipm,
           const char *title="Constrained Triangulation_2 Basic Viewer")
@@ -101,8 +99,6 @@ void draw(const CGAL_T2_TYPE& at2,
   draw_graphics_scene(buffer, title);
 }
 
-#endif // CGAL_USE_BASIC_VIEWER
-
 #undef CGAL_T2_TYPE
 
 } // End namespace CGAL
diff --git a/Triangulation_2/include/CGAL/draw_triangulation_2.h b/Triangulation_2/include/CGAL/draw_triangulation_2.h
index 32a42879ae46..3a137a579987 100644
--- a/Triangulation_2/include/CGAL/draw_triangulation_2.h
+++ b/Triangulation_2/include/CGAL/draw_triangulation_2.h
@@ -14,7 +14,7 @@
 #define CGAL_DRAW_T2_H
 
 #include <CGAL/license/Triangulation_2.h>
-#include <CGAL/Qt/Basic_viewer.h>
+#include <CGAL/Basic_viewer.h>
 #include <CGAL/Graphics_scene.h>
 #include <CGAL/Graphics_scene_options.h>
 #include <CGAL/Triangulation_2.h>
@@ -145,8 +145,6 @@ void add_to_graphics_scene(const CGAL_T2_TYPE& at2,
   add_to_graphics_scene(at2, graphics_scene, drawingFunctor);
 }
 
-#ifdef CGAL_USE_BASIC_VIEWER
-
 // Specialization of draw function.
 template <class Gt, class Tds, class GSOptions>
 void draw(const CGAL_T2_TYPE &at2, const GSOptions &gs_options,
@@ -166,8 +164,6 @@ void draw(const CGAL_T2_TYPE& at2,
   draw_graphics_scene(buffer, title);
 }
 
-#endif // CGAL_USE_BASIC_VIEWER
-
 #undef CGAL_T2_TYPE
 
 } // End namespace CGAL
diff --git a/Voronoi_diagram_2/include/CGAL/draw_voronoi_diagram_2.h b/Voronoi_diagram_2/include/CGAL/draw_voronoi_diagram_2.h
index 534d5aa47c38..9bb1e50c09cc 100644
--- a/Voronoi_diagram_2/include/CGAL/draw_voronoi_diagram_2.h
+++ b/Voronoi_diagram_2/include/CGAL/draw_voronoi_diagram_2.h
@@ -14,7 +14,7 @@
 #define CGAL_DRAW_VORONOI_DIAGRAM_2_H
 
 #include <CGAL/license/Voronoi_diagram_2.h>
-#include <CGAL/Qt/Basic_viewer.h>
+#include <CGAL/Basic_viewer.h>
 #include <CGAL/Graphics_scene.h>
 #include <CGAL/Graphics_scene_options.h>
 #include <CGAL/Triangulation_utils_2.h>
@@ -371,7 +371,7 @@ void add_to_graphics_scene(const CGAL_VORONOI_TYPE& v2,
   add_to_graphics_scene(v2, graphics_scene, gs_options);
 }
 
-#ifdef CGAL_USE_BASIC_VIEWER
+#if defined(CGAL_USE_BASIC_VIEWER) || defined(CGAL_USE_BASIC_VIEWER_QT)
 
 // Specialization of draw function.
 template<class DG, class AT, class AP, class GSOptions>
@@ -449,7 +449,7 @@ void draw(const CGAL_VORONOI_TYPE& av2,
   draw(av2, gs_options, title);
 }
 
-#endif // CGAL_USE_BASIC_VIEWER
+#endif // CGAL_USE_BASIC_VIEWER || CGAL_USE_BASIC_VIEWER_QT
 
 #undef CGAL_VORONOI_TYPE