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Fixed crash in BitBlt when source DC is NULL.

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This commit is contained in:
Alexandre Julliard 2002-04-02 03:00:00 +00:00
parent d7c606d624
commit c71417ce24
2 changed files with 2 additions and 2 deletions
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2
graphics/bitblt.c
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@ -85,7 +85,7 @@ BOOL WINAPI BitBlt( HDC hdcDst, INT xDst, INT yDst, INT width,
hdcDst, xDst, yDst, width, height, dcDst->bitsPerPixel, rop); hdcDst, xDst, yDst, width, height, dcDst->bitsPerPixel, rop);
if (dcDst->funcs->pBitBlt) if (dcDst->funcs->pBitBlt)
ret = dcDst->funcs->pBitBlt( dcDst->physDev, xDst, yDst, width, height, ret = dcDst->funcs->pBitBlt( dcDst->physDev, xDst, yDst, width, height,
dcSrc->physDev, xSrc, ySrc, rop ); dcSrc ? dcSrc->physDev : NULL, xSrc, ySrc, rop );
if (dcSrc) GDI_ReleaseObj( hdcSrc ); if (dcSrc) GDI_ReleaseObj( hdcSrc );
GDI_ReleaseObj( hdcDst ); GDI_ReleaseObj( hdcDst );
} }

2
graphics/x11drv/bitblt.c
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@ -1503,7 +1503,7 @@ BOOL X11DRV_BitBlt( X11DRV_PDEVICE *physDevDst, INT xDst, INT yDst,
BOOL result = FALSE; BOOL result = FALSE;
INT sSrc, sDst; INT sSrc, sDst;
RECT visRectDst, visRectSrc; RECT visRectDst, visRectSrc;
DC *dcSrc = physDevSrc->dc; DC *dcSrc = physDevSrc ? physDevSrc->dc : NULL;
DC *dcDst = physDevDst->dc; DC *dcDst = physDevDst->dc;
if (((rop >> 16) & 0x55) == ((rop >> 17) & 0x55)) { if (((rop >> 16) & 0x55) == ((rop >> 17) & 0x55)) {