[Bug 14762] GeforceFX series: fullscreen PP effect issues / RECT texcoord fixup

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=14762





--- Comment #43 from Stefan Dösinger <stefandoesinger at gmx.at>  2008-12-04 18:14:43 ---
I'll look at your code, but I don't think you want to access an
IWineD3DSurfaceImpl anywhere here. You probably have an IWineD3DBaseTexture *
and are casting it to an IWineD3DSurfaceImpl *, which as you guessed is not
correct. If you know that it is a RECT texture, you know you have an
IWineD3DTexture *, so you can safely cast it to IWineD3DTextureImpl *. In there
you have the np2 correction matrix, and you'll want to use element 0 and 5 from
it.

This is the matrix:

w 0 0 0
0 h 0 0
0 0 1 0
0 0 0 1

This shows why you want elements 0 and 5


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