http://bugs.winehq.org/show_bug.cgi?id=10580
--- Comment #22 from Stefan Dösinger stefandoesinger@gmx.at 2008-05-26 16:54:38 --- I'd say go ahead and send a patch. Probably make the precision %.16f or something to be safe. There are other potential places where a similar adjustment is needed, maybe the sRGB constant loading.