[Bug 7643] Supreme Commander crashes during play

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=7643

------- Additional Comments From [e-mail]  2007-12-03 09:20 -------
> pLockedRect->pBits = This->resource.allocatedMemory + (pLockedRect->Pitch *
> pRect->top) + (pRect->left * This->bytesPerPixel);

I would need to test this a bit, but I think that line is wrong for the DXT
formats. Those formats are based on 4x4 blocks, with Pitch being the number of
bytes in a block times the width, so we should probably be using pRect->top / 4
rather than pRect->top there.