WineD3D texture bug

Stefan Dösinger stefandoesinger at
Sun Feb 5 15:44:21 CST 2006

> To summarize 3dmark2001 possibly uses incorrect d3d8 code but the code works 
> fine on Windows. I tried to test the behaviour using a test (perhaps not a 
> good test) and windows appeared to work correctly and the same for wine. 
> Further oliver had the same problem in maxpayne2 (it uses the same 3d engine 
> I think) and he used a similar hack.
One thing that I've learned since I started working on Wine is not to trust 
the MSDN. During my ddraw/d3d work I've seen a lot of such things, and the 
ddraw code contains a lot of comments which state that the msdn is incorrect. 
And at the university I've met some windows application developers which 
thought that the msdn is horrible.

In this case, what speaks against simply allowing rendering from sysmem 
textures? In wine this doesn't make much difference(as we 'only' forward to 

For Windows I'd say that this might depend on the driver. Perhaps in MS design 
sysmem textures can't be used for rendering, but most drivers eighter ignore 
the sysmem property completely(and place everything into vidmem), or they are 
just able to render from sysmem textures. If you are unlucky, you might have 
a driver which can't do so, and some apps are broken.
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