Signed-off-by: Matteo Bruni mbruni@codeweavers.com --- I missed the multiple close-but-not-quite-identical constants in the paper. I'm not sure that they should actually differ but I don't feel like recomputing those coefficients AND it might well be that using more accurate coefficients would "break" our implementation by making it generate different results compared to native. So yeah, let's take your patch as-is.