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- Implement brush origin for 4bpp blits.

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svn path=/trunk/; revision=9025
This commit is contained in:
Filip Navara 2004-04-08 09:44:21 +00:00
parent a7270ad893
commit 638280971c
1 changed files with 22 additions and 12 deletions
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34
reactos/subsys/win32k/dib/dib4bpp.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: dib4bpp.c,v 1.31 2004/04/07 20:23:38 navaraf Exp $ */
/* $Id: dib4bpp.c,v 1.32 2004/04/08 09:44:21 navaraf Exp $ */
#undef WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <stdlib.h>
@ -249,6 +249,7 @@ DIB_4BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
HBITMAP PatternSurface = NULL;
PSURFOBJ PatternObj;
ULONG PatternWidth, PatternHeight;
POINTL PatternOrigin;
static const ULONG ExpandSolidColor[16] =
{
0x00000000 /* 0 */,
@ -302,6 +303,15 @@ DIB_4BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
PatternObj = (PSURFOBJ)AccessUserObject((ULONG)PatternSurface);
PatternWidth = PatternObj->sizlBitmap.cx;
PatternHeight = PatternObj->sizlBitmap.cy;
if (BrushOrigin != NULL)
{
PatternOrigin = *BrushOrigin;
}
else
{
PatternOrigin.x = PatternOrigin.y = 0;
}
UsesPattern = TRUE;
}
@ -322,7 +332,7 @@ DIB_4BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
i = DestRect->left;
if (UsesPattern)
PatternY = j % PatternHeight;
PatternY = (j + PatternOrigin.y) % PatternHeight;
if (i & 0x1)
{
@ -335,7 +345,7 @@ DIB_4BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
if (UsesPattern)
{
Pattern = DIB_1BPP_GetPixel(PatternObj, i % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack;
Pattern = DIB_1BPP_GetPixel(PatternObj, (i + PatternOrigin.x) % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack;
}
DIB_4BPP_PutPixel(DestSurf, i, j, DIB_DoRop(Rop4, Dest, Source, Pattern) & 0xF);
@ -362,14 +372,14 @@ DIB_4BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
}
if (UsesPattern)
{
Pattern = DIB_1BPP_GetPixel(PatternObj, (i + 1) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 0) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 4;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 3) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 8;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 2) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 12;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 5) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 16;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 4) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 20;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 7) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 24;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 6) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 28;
Pattern = DIB_1BPP_GetPixel(PatternObj, (i + PatternOrigin.x + 1) % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + PatternOrigin.x + 0) % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack) << 4;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + PatternOrigin.x + 3) % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack) << 8;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + PatternOrigin.x + 2) % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack) << 12;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + PatternOrigin.x + 5) % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack) << 16;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + PatternOrigin.x + 4) % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack) << 20;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + PatternOrigin.x + 7) % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack) << 24;
Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + PatternOrigin.x + 6) % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack) << 28;
}
*DestBits = DIB_DoRop(Rop4, Dest, Source, Pattern);
}
@ -384,7 +394,7 @@ DIB_4BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
}
if (UsesPattern)
{
Pattern = DIB_1BPP_GetPixel(PatternObj, i % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack;
Pattern = DIB_1BPP_GetPixel(PatternObj, (i + PatternOrigin.x) % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack;
}
DIB_4BPP_PutPixel(DestSurf, i, j, DIB_DoRop(Rop4, Dest, Source, Pattern) & 0xF);
}