Add workaround for IOS/emscripten NPOT Textures

Mitigation.
libretro · Oct 15, 2024 · 75d5a44 · 75d5a44
1 parent e0957ec
commit 75d5a44
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/src/Graphics/OpenGLContext/opengl_TextureManipulationObjectFactory.cpp b/src/Graphics/OpenGLContext/opengl_TextureManipulationObjectFactory.cpp
@@ -281,6 +281,8 @@ namespace opengl {
 				glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GLint(_parameters.minFilter));
 				(*m_texparams)[u32(_parameters.handle)].minFilter = GLint(_parameters.minFilter);
 			}
+
+#if !defined(IOS) && !defined(EMSCRIPTEN)
 			if (_parameters.wrapS.isValid() && !(iterValid && iter->second.wrapS == GLint(_parameters.wrapS))) {
 				glTexParameteri(target, GL_TEXTURE_WRAP_S, GLint(_parameters.wrapS));
 				(*m_texparams)[u32(_parameters.handle)].wrapS = GLint(_parameters.wrapS);
@@ -289,6 +291,13 @@ namespace opengl {
 				glTexParameteri(target, GL_TEXTURE_WRAP_T, GLint(_parameters.wrapT));
 				(*m_texparams)[u32(_parameters.handle)].wrapT = GLint(_parameters.wrapT);
 			}
+#else // !IOS && !EMSCRIPTEN
+			// HACK: Emscripten & IOS only support NPOT textures for GL_CLAMP_TO_EDGE
+			glTexParameteri(target, GL_TEXTURE_WRAP_S, GLint(graphics::textureParameters::WRAP_CLAMP_TO_EDGE));
+			(*m_texparams)[u32(_parameters.handle)].wrapS = GLint(graphics::textureParameters::WRAP_CLAMP_TO_EDGE);
+			glTexParameteri(target, GL_TEXTURE_WRAP_T, GLint(graphics::textureParameters::WRAP_CLAMP_TO_EDGE));
+			(*m_texparams)[u32(_parameters.handle)].wrapT = GLint(graphics::textureParameters::WRAP_CLAMP_TO_EDGE);
+#endif // IOS || EMSCRIPTEN
 			if (m_supportMipmapLevel && _parameters.maxMipmapLevel.isValid() && !(iterValid && iter->second.maxMipmapLevel == GLint(_parameters.maxMipmapLevel))) {
 				glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, GLint(_parameters.maxMipmapLevel));
 				(*m_texparams)[u32(_parameters.handle)].maxMipmapLevel = GLint(_parameters.maxMipmapLevel);