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Change pixel format for 24 BPP surfaces when the DDraw BPP is 32.

This commit is contained in:
Lionel Ulmer 2000-08-25 21:31:15 +00:00 committed by Alexandre Julliard
parent 024e881230
commit e34191fc6d
1 changed files with 16 additions and 1 deletions
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17
dlls/ddraw/ddraw/main.c
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@ -548,8 +548,23 @@ HRESULT common_off_screen_CreateSurface(
lpdsf->s.surface_desc.dwFlags |= DDSD_PIXELFORMAT;
}
bpp = GET_BPP(lpdsf->s.surface_desc);
}
if (bpp != PFGET_BPP(This->d->directdraw_pixelformat)) {
/* When the application is requesting a 24 bpp surface and the Direct Draw bpp
is set to 32, we 'upgrade' the requested bpp to 32 to make the blit faster
from off-screen surface to visible surfaces.
With this, Windows Media Player works in 32 bpp mode.
Lionel */
if ((bpp == 3) && (PFGET_BPP(This->d->directdraw_pixelformat) == 4)) {
TRACE("Warning: 'upgrading' requested 24 bpp format to 32 bpp for efficiencies reasons\n");
TRACE(" some applications may have problems with it.\n");
bpp = PFGET_BPP(This->d->directdraw_pixelformat);
lpdsf->s.surface_desc.ddpfPixelFormat = This->d->directdraw_pixelformat;
}
}
}
if (lpdsf->s.surface_desc.dwFlags & DDSD_LPSURFACE)
ERR("Creates a surface that is already allocated : assuming this is an application bug !\n");