Fixes for drawing BGRA textures on iOS. (#5909)

#changelog #ios
openframeworks · Jan 27, 2021 · 0818683 · 0818683
1 parent b4ea0d9
commit 0818683
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Showing 2 changed files with 10 additions and 0 deletions.
diff --git a/libs/openFrameworks/gl/ofGLUtils.cpp b/libs/openFrameworks/gl/ofGLUtils.cpp
@@ -161,6 +161,10 @@ int ofGetGLFormatFromInternal(int glInternalFormat){
 		    case GL_RGBA32UI:
 	#endif
 				 return GL_RGBA;
+#ifdef TARGET_OF_IOS
+			case GL_BGRA:
+			return GL_BGRA;
+#endif
 
 
 			case GL_RGB:
@@ -691,6 +695,9 @@ int ofGetNumChannelsFromGLFormat(int glFormat){
 	switch(glFormat){
 	case GL_RGB:
 		return 3;
+#ifdef TARGET_OF_IOS
+	case GL_BGRA:
+#endif
 	case GL_RGBA:
 		return 4;
 	case GL_LUMINANCE:

diff --git a/libs/openFrameworks/gl/ofTexture.cpp b/libs/openFrameworks/gl/ofTexture.cpp
@@ -677,6 +677,9 @@ void ofTexture::loadData(const void * data, int w, int h, int glFormat, int glTy
 	// bind texture
 	glBindTexture(texData.textureTarget, (GLuint) texData.textureID);
 	//update the texture image:
+#ifdef TARGET_OF_IOS
+	glTexImage2D(texData.textureTarget, 0, texData.glInternalFormat, texData.tex_w, texData.tex_h, 0, glFormat, glType, 0);
+#endif
 	glTexSubImage2D(texData.textureTarget, 0, 0, 0, w, h, glFormat, glType, data);
 	// unbind texture target by binding 0
 	glBindTexture(texData.textureTarget, 0);