[Bug 5526] RedAlert 2 runs very slowly after upgrade from 0.9.15 to 0.9.16

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=5526





------- Additional Comments From stefandoesinger(a)gmx.at  2006-10-07 11:39 -------
Well, the ddraw rewrite was also about sharing d3d code between ddraw, d3d8 
and d3d9.

The main idea behind using opengl for ddraw is to handle Blits to the render 
target in hardware, and to have color conversions handled in hardware. This 
can really improve performance, in those games that work I get 500 fps instead 
of 40 fps :-) (Well, swat3 and worms 2 with hacks). There is a hacky patch for 
the old ddraw code which makes it use opengl, and it helped the performance of 
the games mentioned here until the mouse was moved, then they crashed because 
of multithreading issues.

Multithreading was the reason for me to port ddraw over to wined3d. This issue 
is common for all d3d versions, now we have to fix it only once in wined3d and 
it will work for all dx versions :-)


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