MaxVertexBlendMatrices issue

[Karl Vogel]

Just tracked down a crash in the game Dark Age of Camelot (daoc) when
pixelshaders are enabled. The game issues a GetDeviceCaps() and then
checks if MaxVertexBlendMatrices >= 4, which on wine is set to zero on
my videocard (Geforce 6800), whereas a windows box returns 4.

I found this old post concerning MaxVertexBlendMatrices causing issues
in another game (EQ):
http://www.winehq.org/pipermail/wine-devel/2008-February/062432.html
http://www.winehq.org/pipermail/wine-devel/2008-February/062437.html


So I was wondering what the proper way to fix this would be? Should
this be made overrideable by a registry setting for certain games? Or
should the GL check be changed? Or is that software emulated vertex
blending patch needed to correctly fix the issue?

Bugzilla has 3 other games where the simple 'fix' of returning 4 makes
the game work (Warhammer, EQ, Shin Megami Tensei Online):
 http://bugs.winehq.org/buglist.cgi?quicksearch=MaxVertexBlendMatrices

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For reference the daoc bug is http://bugs.winehq.org/show_bug.cgi?id=10832