http://bugs.winehq.org/show_bug.cgi?id=35112
--- Comment #5 from Anastasius Focht focht@gmx.net --- Hello Stefan,
--- quote --- I think the value you're looking at is MaxPrimitiveCount. My Evergreen-class AMD GPU sets MaxPrimitiveCount = 0x555555 and MaxVertexIndex = 0xffffff. --- quote ---
Well, I only increased 'MaxVertexIndex' with a patch, leaving 'MaxPrimitiveCount' at Wine default and it definitely helped.
If you search the Internet for "MaxVertexIndex MaxPrimitiveCount dxdiag" one can find many Windows driver dxdiag reports to compare with (filter out the low spec/crap graphics cards).
MaxPrimitiveCount = 8388607 MaxVertexIndex = 16777215
MaxPrimitiveCount = 1048575 MaxVertexIndex = 16777215
MaxPrimitiveCount = 5592405 MaxVertexIndex = 16777215
So there is a pattern for 'MaxVertexIndex' :-) Though I could test your patch only increasing 'MaxPrimitiveCount', too.
Regards