853 			glCopyTexSubImage2D(0, 0, 0, 0, 0, 0, 4, 4);  in init()
869 			glCopyTexSubImage2D(GL_TEXTURE_2D, -1, 0, 0, 0, 0, 4, 4);  in init()
873 				glCopyTexSubImage2D(faceGL, -1, 0, 0, 0, 0, 4, 4);  in init()
891 			glCopyTexSubImage2D(GL_TEXTURE_2D, log2MaxTextureSize, 0, 0, 0, 0, 4, 4);  in init()
899 				glCopyTexSubImage2D(faceGL, log2MaxCubemapSize, 0, 0, 0, 0, 4, 4);  in init()
914 			glCopyTexSubImage2D(GL_TEXTURE_2D, 0, -1, 0, 0, 0, 4, 4);  in init()
916 			glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, -1, 0, 0, 4, 4);  in init()
918 			glCopyTexSubImage2D(GL_TEXTURE_2D, 0, -1, -1, 0, 0, 4, 4);  in init()
932 			glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 14, 0, 0, 0, 4, 4);  in init()
934 			glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 14, 0, 0, 4, 4);  in init()
936 			glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 14, 14, 0, 0, 4, 4);  in init()
950 			glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, -1, 0);  in init()
952 			glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, 0, -1);  in init()
954 			glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, -1, -1);  in init()
984 			glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, 0, 0);  in init()
986 			glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, 0, 0, 0, 0, 0, 0);  in init()
988 			glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, 0, 0, 0, 0, 0, 0);  in init()
990 			glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, 0, 0, 0, 0, 0, 0);  in init()
992 			glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, 0, 0, 0, 0, 0, 0);  in init()
994 			glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, 0, 0, 0, 0, 0, 0);  in init()
996 			glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, 0, 0, 0, 0, 0, 0);  in init()