http://bugs.winehq.org/show_bug.cgi?id=26421
--- Comment #1 from Henri Verbeet hverbeet@gmail.com 2011-03-14 19:02:28 CDT --- I'm not sure this is necessarily a regression in Wine, there might still be some bugs in Mesa's sRGB handling. MESA_EXTENSION_OVERRIDE=-GL_EXT_texture_sRGB_decode should be an easy workaround though. I don't have the hardware to look into this myself, but it may be useful to know if the piglit fbo-srgb-blit test passes on GM45.