Extra info on d3dsurface crash

[Stefan Dösinger]

Am Donnerstag 19 Oktober 2006 02:46 schrieb Robert Lunnon:
> I'm  still trying to work this out, see below, but I have a silly question,
> how *should* IWineGDISurfaceImpl_Blt  behave if args 2 & 3 are NULL IE
> DestRect and SrcSurface are both NULL. Is this a no-op ?
No, look at the DDBLTFX structure and the dwFlags parameter. 
IDirectDrawSurface7::Blt knows a few source-less blts, like colorfill.

One of the last remaining ddraw docs on the msdn:
http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/ddraw7/directdraw7/ddref_4b7b.asp

About the other things, I have to look at them. But it seems that there are 
DXTN surfaces(compressed textures) involved, and 2D operation on compressed 
textures are implemented in a very basic fashion only, and likely to produce 
problems.
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