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Another fix for forced display mode pixel format

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Apparently normal surfaces can be created without any caps, or with caps
that don't specify a surface type (e.g. only memory flags or completely zero).
Some games even seem to use such surfaces (e.g. Planescape: Torment) and
were broken by the earlier fix.
Now the surface type detection is based on a lack of certain caps instead of
the presence of them.
This commit is contained in:
narzoul 2015-12-30 00:39:31 +01:00
parent 640dbf6412
commit b71a87baea
1 changed files with 2 additions and 3 deletions
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5
DDrawCompat/CompatDirectDraw.cpp
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@ -49,9 +49,8 @@ HRESULT STDMETHODCALLTYPE CompatDirectDraw<TDirectDraw>::CreateSurface(
!(lpDDSurfaceDesc->dwFlags & DDSD_PIXELFORMAT) &&
(lpDDSurfaceDesc->dwFlags & DDSD_WIDTH) &&
(lpDDSurfaceDesc->dwFlags & DDSD_HEIGHT) &&
(lpDDSurfaceDesc->dwFlags & DDSD_CAPS) &&
(lpDDSurfaceDesc->ddsCaps.dwCaps & (DDSCAPS_3DDEVICE | DDSCAPS_BACKBUFFER | DDSCAPS_FLIP |
DDSCAPS_FRONTBUFFER | DDSCAPS_OFFSCREENPLAIN | DDSCAPS_OVERLAY | DDSCAPS_TEXTURE)))
!((lpDDSurfaceDesc->dwFlags & DDSD_CAPS) &&
(lpDDSurfaceDesc->ddsCaps.dwCaps & (DDSCAPS_ALPHA | DDSCAPS_ZBUFFER))))
{
TSurfaceDesc desc = *lpDDSurfaceDesc;
desc.dwFlags |= DDSD_PIXELFORMAT;