WebGL: GL_RGB emulation for IOSurface backed textures. [For reference only]

third_party/khronos/GLES2/gl2ext.h

 #ifndef __gl2ext_h_
 #define __gl2ext_h_ 1
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /*
 ** Copyright (c) 2013-2014 The Khronos Group Inc.
 **
@@ skipping 709 matching lines @@
 GL_APICALL void GL_APIENTRY glDeleteSyncAPPLE (GLsync sync);
 GL_APICALL GLenum GL_APIENTRY glClientWaitSyncAPPLE (GLsync sync, GLbitfield flags, GLuint64 timeout);
 GL_APICALL void GL_APIENTRY glWaitSyncAPPLE (GLsync sync, GLbitfield flags, GLuint64 timeout);
 GL_APICALL void GL_APIENTRY glGetInteger64vAPPLE (GLenum pname, GLint64 *params);
 GL_APICALL void GL_APIENTRY glGetSyncivAPPLE (GLsync sync, GLenum pname, GLsizei bufSize, GLsizei *length, GLint *values);
 #endif
 #endif /* GL_APPLE_sync */
 
 #ifndef GL_APPLE_texture_format_BGRA8888
 #define GL_APPLE_texture_format_BGRA8888 1
+#define GL_BGR_EXT 0x80E0
 #define GL_BGRA_EXT                       0x80E1
 #define GL_BGRA8_EXT                      0x93A1
 #endif /* GL_APPLE_texture_format_BGRA8888 */
 
 #ifndef GL_APPLE_texture_max_level
 #define GL_APPLE_texture_max_level 1
 #define GL_TEXTURE_MAX_LEVEL_APPLE        0x813D
 #endif /* GL_APPLE_texture_max_level */
 
 #ifndef GL_APPLE_texture_packed_float
@@ skipping 1277 matching lines @@
 #ifndef GL_VIV_shader_binary
 #define GL_VIV_shader_binary 1
 #define GL_SHADER_BINARY_VIV              0x8FC4
 #endif /* GL_VIV_shader_binary */
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif