PixelFormat get_base_pixelformat(PixelFormat);
PixelFormat get_srgb_pixelformat(PixelFormat);
unsigned get_component_count(PixelFormat);
PixelFormat get_base_pixelformat(PixelFormat);
PixelFormat get_srgb_pixelformat(PixelFormat);
unsigned get_component_count(PixelFormat);