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Do a dummy BitBlt at the end of a MaskBitBlt to inform the driver that

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a region was updated. Fixes bug #125

svn path=/trunk/; revision=7572
This commit is contained in:
Gé van Geldorp 2004-01-11 19:52:27 +00:00
parent e98f4ce2f0
commit 881fd1b420
1 changed files with 16 additions and 1 deletions
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17
reactos/subsys/win32k/eng/bitblt.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: bitblt.c,v 1.37 2003/12/31 16:06:48 weiden Exp $
/* $Id: bitblt.c,v 1.38 2004/01/11 19:52:27 gvg Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -226,6 +226,16 @@ EngBitBlt(SURFOBJ *DestObj,
unsigned i;
POINTL Pt;
ULONG Direction;
BOOL UsesSource;
BOOL UsesPattern;
UsesSource = ((Rop4 & 0xCC0000) >> 2) != (Rop4 & 0x330000);
UsesPattern = ((Rop4 & 0xF00000) >> 4) != (Rop4 & 0x0F0000);
if (! UsesSource && ! UsesPattern && 0xaacc != Rop4)
{
/* Copy destination onto itself: nop */
return TRUE;
}
if (NULL != SourcePoint)
{
@ -1071,6 +1081,11 @@ EngMaskBitBlt(SURFOBJ *DestObj,
IntEngLeave(&EnterLeaveDest);
IntEngLeave(&EnterLeaveSource);
/* Dummy BitBlt to let driver know that something has changed.
0x00AA0029 is the Rop for D (no-op) */
IntEngBitBlt(DestObj, NULL, Mask, ClipRegion, DestColorTranslation,
DestRect, SourcePoint, MaskOrigin, Brush, BrushOrigin, 0x00AA0029);
return Ret;
}