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Use only LSBit for 1bpp putpixel

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svn path=/trunk/; revision=9261
This commit is contained in:
Gé van Geldorp 2004-05-01 09:04:37 +00:00
parent b4abd1fae0
commit d490382a4f
1 changed files with 2 additions and 2 deletions
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4
reactos/subsys/win32k/dib/dib1bpp.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software * along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/ */
/* $Id: dib1bpp.c,v 1.25 2004/04/25 11:34:12 weiden Exp $ */ /* $Id: dib1bpp.c,v 1.26 2004/05/01 09:04:37 gvg Exp $ */
#undef WIN32_LEAN_AND_MEAN #undef WIN32_LEAN_AND_MEAN
#include <windows.h> #include <windows.h>
@ -35,7 +35,7 @@ DIB_1BPP_PutPixel(SURFOBJ *SurfObj, LONG x, LONG y, ULONG c)
{ {
PBYTE addr = SurfObj->pvScan0 + y * SurfObj->lDelta + (x >> 3); PBYTE addr = SurfObj->pvScan0 + y * SurfObj->lDelta + (x >> 3);
if ( !c ) if (0 == (c & 0x01))
*addr &= ~MASK1BPP(x); *addr &= ~MASK1BPP(x);
else else
*addr |= MASK1BPP(x); *addr |= MASK1BPP(x);