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gdi32: Disallow creation of compressed DIB sections.

This commit is contained in:
Ulrich Czekalla 2006-01-03 12:09:03 +01:00 committed by Alexandre Julliard
parent dfa74b998e
commit 4f5cbfb43d
1 changed files with 7 additions and 6 deletions
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13
dlls/gdi/dib.c
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@ -1148,6 +1148,12 @@ HBITMAP DIB_CreateDIBSection(HDC hdc, const BITMAPINFO *bmi, UINT usage,
&planes, &bpp, &compression, &sizeImage )) == -1))
return 0;
if (compression != BI_RGB && compression != BI_BITFIELDS)
{
TRACE("can't create a compressed (%lu) dibsection\n", compression);
return 0;
}
if (!(dib = HeapAlloc( GetProcessHeap(), 0, sizeof(*dib) ))) return 0;
TRACE("format (%ld,%ld), planes %d, bpp %d, size %ld, %s\n",
@ -1186,12 +1192,7 @@ HBITMAP DIB_CreateDIBSection(HDC hdc, const BITMAPINFO *bmi, UINT usage,
if( bpp <= 8 )
dib->dsBmih.biClrUsed = 1 << bpp;
/* only use sizeImage if it's valid and we're dealing with a compressed bitmap */
if (sizeImage && (compression == BI_RLE4 || compression == BI_RLE8))
dib->dsBmih.biSizeImage = sizeImage;
else
dib->dsBmih.biSizeImage = dib->dsBm.bmWidthBytes * dib->dsBm.bmHeight;
dib->dsBmih.biSizeImage = dib->dsBm.bmWidthBytes * dib->dsBm.bmHeight;
/* set dsBitfields values */
if (usage == DIB_PAL_COLORS || bpp <= 8)