[Bug 35112] L.A. Noire 1.3 (Steam version) fails to start, claiming "DX94: Graphics card capabilities are below the minimum specifications." (wined3d clamps device caps MaxVertexIndex to 0xFFFFF)

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=35112

--- Comment #5 from Anastasius Focht <focht at 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

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