This only handles the case where ARB_framebuffer_sRGB and
EXT_texture_sRGB_decode are supported by the GL implementation.
Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>