1GL_APPLE_rgb_422 2https://www.khronos.org/registry/OpenGL/extensions/APPLE/APPLE_rgb_422.txt 3GL_APPLE_rgb_422 4 5 GL_UNSIGNED_SHORT_8_8_APPLE 0x85BA 6 GL_UNSIGNED_SHORT_8_8_REV_APPLE 0x85BB 7 GL_RGB_422_APPLE 0x8A1F 8 GL_RGB_RAW_422_APPLE 0x8A51 9