* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-/* $Id: dib8bpp.c,v 1.4 2003/08/12 21:55:47 gvg Exp $ */
-#undef WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#include <stdlib.h>
-#include <win32k/bitmaps.h>
-#include <win32k/debug.h>
+/* $Id$ */
+
+#include <w32k.h>
+
+#define NDEBUG
#include <debug.h>
-#include <ddk/winddi.h>
-#include "../eng/objects.h"
-#include "dib.h"
VOID
-DIB_8BPP_PutPixel(PSURFOBJ SurfObj, LONG x, LONG y, ULONG c)
+DIB_8BPP_PutPixel(SURFOBJ *SurfObj, LONG x, LONG y, ULONG c)
{
- PBYTE byteaddr = SurfObj->pvScan0 + y * SurfObj->lDelta + x;
+ PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta + x;
*byteaddr = c;
}
ULONG
-DIB_8BPP_GetPixel(PSURFOBJ SurfObj, LONG x, LONG y)
+DIB_8BPP_GetPixel(SURFOBJ *SurfObj, LONG x, LONG y)
{
- PBYTE byteaddr = SurfObj->pvScan0 + y * SurfObj->lDelta + x;
+ PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta + x;
return (ULONG)(*byteaddr);
}
VOID
-DIB_8BPP_HLine(PSURFOBJ SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
+DIB_8BPP_HLine(SURFOBJ *SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
{
- PBYTE byteaddr = SurfObj->pvScan0 + y * SurfObj->lDelta;
- PBYTE addr = byteaddr + x1;
- LONG cx = x1;
-
- while(cx < x2) {
- *addr = c;
- ++addr;
- ++cx;
- }
+ memset((PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta + x1, (BYTE) c, x2 - x1);
}
VOID
-DIB_8BPP_VLine(PSURFOBJ SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
+DIB_8BPP_VLine(SURFOBJ *SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
{
- PBYTE byteaddr = SurfObj->pvScan0 + y1 * SurfObj->lDelta;
+ PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y1 * SurfObj->lDelta;
PBYTE addr = byteaddr + x;
LONG lDelta = SurfObj->lDelta;
}
BOOLEAN
-DIB_8BPP_BitBltSrcCopy(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
- SURFGDI *DestGDI, SURFGDI *SourceGDI,
- PRECTL DestRect, POINTL *SourcePoint,
- XLATEOBJ *ColorTranslation)
+DIB_8BPP_BitBltSrcCopy(PBLTINFO BltInfo)
{
- ULONG i, j, sx, sy, xColor, f1;
+ LONG i, j, sx, sy, xColor, f1;
PBYTE SourceBits, DestBits, SourceLine, DestLine;
PBYTE SourceBits_4BPP, SourceLine_4BPP;
- DestBits = DestSurf->pvScan0 + (DestRect->top * DestSurf->lDelta) + DestRect->left;
+ DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 + (BltInfo->DestRect.top * BltInfo->DestSurface->lDelta) + BltInfo->DestRect.left;
- switch(SourceGDI->BitsPerPixel)
+ switch(BltInfo->SourceSurface->iBitmapFormat)
{
- case 1:
- sx = SourcePoint->x;
- sy = SourcePoint->y;
+ case BMF_1BPP:
+ sx = BltInfo->SourcePoint.x;
+ sy = BltInfo->SourcePoint.y;
- for (j=DestRect->top; j<DestRect->bottom; j++)
+ for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
{
- sx = SourcePoint->x;
- for (i=DestRect->left; i<DestRect->right; i++)
+ sx = BltInfo->SourcePoint.x;
+ for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
{
- if(DIB_1BPP_GetPixel(SourceSurf, sx, sy) == 0)
+ if(DIB_1BPP_GetPixel(BltInfo->SourceSurface, sx, sy) == 0)
{
- DIB_8BPP_PutPixel(DestSurf, i, j, XLATEOBJ_iXlate(ColorTranslation, 0));
+ DIB_8BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 0));
} else {
- DIB_8BPP_PutPixel(DestSurf, i, j, XLATEOBJ_iXlate(ColorTranslation, 1));
+ DIB_8BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 1));
}
sx++;
}
}
break;
- case 4:
- SourceBits_4BPP = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + (SourcePoint->x >> 1);
+ case BMF_4BPP:
+ SourceBits_4BPP = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + (BltInfo->SourcePoint.x >> 1);
- for (j=DestRect->top; j<DestRect->bottom; j++)
+ for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
{
SourceLine_4BPP = SourceBits_4BPP;
- sx = SourcePoint->x;
+ sx = BltInfo->SourcePoint.x;
f1 = sx & 1;
- for (i=DestRect->left; i<DestRect->right; i++)
+ for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
{
- xColor = XLATEOBJ_iXlate(ColorTranslation,
- (*SourceLine_4BPP & altnotmask[sx&1]) >> (4 * (1-(sx & 1))));
- DIB_8BPP_PutPixel(DestSurf, i, j, xColor);
+ xColor = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest,
+ (*SourceLine_4BPP & altnotmask[f1]) >> (4 * (1 - f1)));
+ DIB_8BPP_PutPixel(BltInfo->DestSurface, i, j, xColor);
if(f1 == 1) { SourceLine_4BPP++; f1 = 0; } else { f1 = 1; }
sx++;
}
- SourceBits_4BPP += SourceSurf->lDelta;
+ SourceBits_4BPP += BltInfo->SourceSurface->lDelta;
}
break;
- case 8:
- if (NULL == ColorTranslation || 0 != (ColorTranslation->flXlate & XO_TRIVIAL))
+ case BMF_8BPP:
+ if (NULL == BltInfo->XlateSourceToDest || 0 != (BltInfo->XlateSourceToDest->flXlate & XO_TRIVIAL))
{
- if (DestRect->top < SourcePoint->y)
+ if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
{
- SourceBits = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + SourcePoint->x;
- for (j = DestRect->top; j < DestRect->bottom; j++)
+ SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x;
+ for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
{
- RtlMoveMemory(DestBits, SourceBits, DestRect->right - DestRect->left);
- SourceBits += SourceSurf->lDelta;
- DestBits += DestSurf->lDelta;
+ RtlMoveMemory(DestBits, SourceBits, BltInfo->DestRect.right - BltInfo->DestRect.left);
+ SourceBits += BltInfo->SourceSurface->lDelta;
+ DestBits += BltInfo->DestSurface->lDelta;
}
}
else
{
- SourceBits = SourceSurf->pvScan0 + ((SourcePoint->y + DestRect->bottom - DestRect->top - 1) * SourceSurf->lDelta) + SourcePoint->x;
- DestBits = DestSurf->pvScan0 + ((DestRect->bottom - 1) * DestSurf->lDelta) + DestRect->left;
- for (j = DestRect->bottom - 1; DestRect->top <= j; j--)
+ SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0 + ((BltInfo->SourcePoint.y + BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x;
+ DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta) + BltInfo->DestRect.left;
+ for (j = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= j; j--)
{
- RtlMoveMemory(DestBits, SourceBits, DestRect->right - DestRect->left);
- SourceBits -= SourceSurf->lDelta;
- DestBits -= DestSurf->lDelta;
+ RtlMoveMemory(DestBits, SourceBits, BltInfo->DestRect.right - BltInfo->DestRect.left);
+ SourceBits -= BltInfo->SourceSurface->lDelta;
+ DestBits -= BltInfo->DestSurface->lDelta;
}
}
}
else
{
- /* FIXME */
- DPRINT1("DIB_8BPP_Bitblt: Unhandled ColorTranslation for 32 -> 32 copy");
- return FALSE;
+ if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
+ {
+ SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x;
+ DestLine = DestBits;
+ for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
+ {
+ SourceBits = SourceLine;
+ DestBits = DestLine;
+ for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
+ {
+ *DestBits++ = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *SourceBits++);
+ }
+ SourceLine += BltInfo->SourceSurface->lDelta;
+ DestLine += BltInfo->DestSurface->lDelta;
+ }
+ }
+ else
+ {
+ SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + ((BltInfo->SourcePoint.y + BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x;
+ DestLine = (PBYTE)BltInfo->DestSurface->pvScan0 + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta) + BltInfo->DestRect.left;
+ for (j = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= j; j--)
+ {
+ SourceBits = SourceLine;
+ DestBits = DestLine;
+ for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
+ {
+ *DestBits++ = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *SourceBits++);
+ }
+ SourceLine -= BltInfo->SourceSurface->lDelta;
+ DestLine -= BltInfo->DestSurface->lDelta;
+ }
+ }
}
break;
- case 16:
- SourceLine = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + 2 * SourcePoint->x;
+ case BMF_16BPP:
+ SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x;
DestLine = DestBits;
- for (j = DestRect->top; j < DestRect->bottom; j++)
+ for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
{
SourceBits = SourceLine;
DestBits = DestLine;
- for (i = DestRect->left; i < DestRect->right; i++)
+ for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
{
xColor = *((PWORD) SourceBits);
- *DestBits = XLATEOBJ_iXlate(ColorTranslation, xColor);
+ *DestBits = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor);
SourceBits += 2;
DestBits += 1;
}
- SourceLine += SourceSurf->lDelta;
- DestLine += DestSurf->lDelta;
+ SourceLine += BltInfo->SourceSurface->lDelta;
+ DestLine += BltInfo->DestSurface->lDelta;
}
break;
- case 24:
- SourceLine = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + 3 * SourcePoint->x;
+ case BMF_24BPP:
+ SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 3 * BltInfo->SourcePoint.x;
DestLine = DestBits;
- for (j = DestRect->top; j < DestRect->bottom; j++)
+ for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
{
SourceBits = SourceLine;
DestBits = DestLine;
- for (i = DestRect->left; i < DestRect->right; i++)
+ for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
{
xColor = (*(SourceBits + 2) << 0x10) +
(*(SourceBits + 1) << 0x08) +
(*(SourceBits));
- *DestBits = XLATEOBJ_iXlate(ColorTranslation, xColor);
+ *DestBits = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor);
SourceBits += 3;
DestBits += 1;
}
- SourceLine += SourceSurf->lDelta;
- DestLine += DestSurf->lDelta;
+ SourceLine += BltInfo->SourceSurface->lDelta;
+ DestLine += BltInfo->DestSurface->lDelta;
}
break;
- case 32:
- SourceLine = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + 4 * SourcePoint->x;
+ case BMF_32BPP:
+ SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 4 * BltInfo->SourcePoint.x;
DestLine = DestBits;
- for (j = DestRect->top; j < DestRect->bottom; j++)
+ for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
{
SourceBits = SourceLine;
DestBits = DestLine;
- for (i = DestRect->left; i < DestRect->right; i++)
+ for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
{
xColor = *((PDWORD) SourceBits);
- *DestBits = XLATEOBJ_iXlate(ColorTranslation, xColor);
+ *DestBits = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor);
SourceBits += 4;
DestBits += 1;
}
- SourceLine += SourceSurf->lDelta;
- DestLine += DestSurf->lDelta;
+ SourceLine += BltInfo->SourceSurface->lDelta;
+ DestLine += BltInfo->DestSurface->lDelta;
}
break;
default:
- DbgPrint("DIB_8BPP_Bitblt: Unhandled Source BPP: %u\n", SourceGDI->BitsPerPixel);
+ DPRINT1("DIB_8BPP_Bitblt: Unhandled Source BPP: %u\n", BitsPerFormat(BltInfo->SourceSurface->iBitmapFormat));
return FALSE;
}
return TRUE;
}
-BOOLEAN
-DIB_8BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
- SURFGDI *DestGDI, SURFGDI *SourceGDI,
- PRECTL DestRect, POINTL *SourcePoint,
- PBRUSHOBJ Brush, PPOINTL BrushOrigin,
- XLATEOBJ *ColorTranslation, ULONG Rop4)
+/* BitBlt Optimize */
+BOOLEAN
+DIB_8BPP_ColorFill(SURFOBJ* DestSurface, RECTL* DestRect, ULONG color)
+{
+ ULONG DestY;
+ for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
+ {
+ DIB_8BPP_HLine(DestSurface, DestRect->left, DestRect->right, DestY, color);
+ }
+
+ return TRUE;
+}
+/*
+=======================================
+ Stretching functions goes below
+ Some parts of code are based on an
+ article "Bresenhame image scaling"
+ Dr. Dobb Journal, May 2002
+=======================================
+*/
+
+typedef unsigned char PIXEL;
+
+/* 16-bit HiColor (565 format) */
+__inline PIXEL average8(PIXEL a, PIXEL b)
{
- LONG i, j, k, sx, sy;
- ULONG Dest, Source, Pattern;
- PULONG DestBits;
- BOOL UsesSource = ((Rop4 & 0xCC0000) >> 2) != (Rop4 & 0x330000);
- BOOL UsesPattern = ((Rop4 & 0xF00000) >> 4) != (Rop4 & 0x0F0000);
- ULONG RoundedRight = DestRect->right - (DestRect->right & 0x3);
-
- if (Rop4 == SRCCOPY)
+ return a; // FIXME: Depend on SetStretchMode
+}
+
+//NOTE: If you change something here, please do the same in other dibXXbpp.c files!
+void ScaleLineAvg8(PIXEL *Target, PIXEL *Source, int SrcWidth, int TgtWidth)
+{
+ int NumPixels = TgtWidth;
+ int IntPart = SrcWidth / TgtWidth;
+ int FractPart = SrcWidth % TgtWidth;
+ int Mid = TgtWidth >> 1;
+ int E = 0;
+ int skip;
+ PIXEL p;
+
+ skip = (TgtWidth < SrcWidth) ? 0 : (TgtWidth / (2*SrcWidth) + 1);
+ NumPixels -= skip;
+
+ while (NumPixels-- > 0) {
+ p = *Source;
+ if (E >= Mid)
+ p = average8(p, *(Source+1));
+ *Target++ = p;
+ Source += IntPart;
+ E += FractPart;
+ if (E >= TgtWidth) {
+ E -= TgtWidth;
+ Source++;
+ } /* if */
+ } /* while */
+ while (skip-- > 0)
+ *Target++ = *Source;
+}
+
+static BOOLEAN
+FinalCopy8(PIXEL *Target, PIXEL *Source, PSPAN ClipSpans, UINT ClipSpansCount, UINT *SpanIndex,
+ UINT DestY, RECTL *DestRect)
+{
+ LONG Left, Right;
+
+ while (ClipSpans[*SpanIndex].Y < DestY
+ || (ClipSpans[*SpanIndex].Y == DestY
+ && ClipSpans[*SpanIndex].X + ClipSpans[*SpanIndex].Width < DestRect->left))
{
- return(DIB_8BPP_BitBltSrcCopy(DestSurf, SourceSurf, DestGDI, SourceGDI, DestRect, SourcePoint, ColorTranslation));
+ (*SpanIndex)++;
+ if (ClipSpansCount <= *SpanIndex)
+ {
+ /* No more spans, everything else is clipped away, we're done */
+ return FALSE;
+ }
}
- else
+ while (ClipSpans[*SpanIndex].Y == DestY)
{
- sy = SourcePoint->y;
+ if (ClipSpans[*SpanIndex].X < DestRect->right)
+ {
+ Left = max(ClipSpans[*SpanIndex].X, DestRect->left);
+ Right = min(ClipSpans[*SpanIndex].X + ClipSpans[*SpanIndex].Width, DestRect->right);
+ memcpy(Target + Left - DestRect->left, Source + Left - DestRect->left,
+ (Right - Left) * sizeof(PIXEL));
+ }
+ (*SpanIndex)++;
+ if (ClipSpansCount <= *SpanIndex)
+ {
+ /* No more spans, everything else is clipped away, we're done */
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
- for (j=DestRect->top; j<DestRect->bottom; j++)
+//NOTE: If you change something here, please do the same in other dibXXbpp.c files!
+BOOLEAN ScaleRectAvg8(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
+ RECTL* DestRect, RECTL *SourceRect,
+ POINTL* MaskOrigin, POINTL BrushOrigin,
+ CLIPOBJ *ClipRegion, XLATEOBJ *ColorTranslation,
+ ULONG Mode)
+{
+ int NumPixels = DestRect->bottom - DestRect->top;
+ int IntPart = (((SourceRect->bottom - SourceRect->top) / (DestRect->bottom - DestRect->top)) * SourceSurf->lDelta); //((SourceRect->bottom - SourceRect->top) / (DestRect->bottom - DestRect->top)) * (SourceRect->right - SourceRect->left);
+ int FractPart = (SourceRect->bottom - SourceRect->top) % (DestRect->bottom - DestRect->top);
+ int Mid = (DestRect->bottom - DestRect->top) >> 1;
+ int E = 0;
+ int skip;
+ PIXEL *ScanLine, *ScanLineAhead;
+ PIXEL *PrevSource = NULL;
+ PIXEL *PrevSourceAhead = NULL;
+ PIXEL *Target = (PIXEL *) ((PBYTE)DestSurf->pvScan0 + (DestRect->top * DestSurf->lDelta) + DestRect->left);
+ PIXEL *Source = (PIXEL *) ((PBYTE)SourceSurf->pvScan0 + (SourceRect->top * SourceSurf->lDelta) + SourceRect->left);
+ PSPAN ClipSpans;
+ UINT ClipSpansCount;
+ UINT SpanIndex;
+ LONG DestY;
+
+ if (! ClipobjToSpans(&ClipSpans, &ClipSpansCount, ClipRegion, DestRect))
+ {
+ return FALSE;
+ }
+ if (0 == ClipSpansCount)
+ {
+ /* No clip spans == empty clipping region, everything clipped away */
+ ASSERT(NULL == ClipSpans);
+ return TRUE;
+ }
+ skip = (DestRect->bottom - DestRect->top < SourceRect->bottom - SourceRect->top) ? 0 : ((DestRect->bottom - DestRect->top) / (2 * (SourceRect->bottom - SourceRect->top)) + 1);
+ NumPixels -= skip;
+
+ ScanLine = (PIXEL*)ExAllocatePool(PagedPool, (DestRect->right - DestRect->left) * sizeof(PIXEL));
+ ScanLineAhead = (PIXEL *)ExAllocatePool(PagedPool, (DestRect->right - DestRect->left) * sizeof(PIXEL));
+
+ DestY = DestRect->top;
+ SpanIndex = 0;
+ while (NumPixels-- > 0) {
+ if (Source != PrevSource) {
+ if (Source == PrevSourceAhead) {
+ /* the next scan line has already been scaled and stored in
+ * ScanLineAhead; swap the buffers that ScanLine and ScanLineAhead
+ * point to
+ */
+ PIXEL *tmp = ScanLine;
+ ScanLine = ScanLineAhead;
+ ScanLineAhead = tmp;
+ } else {
+ ScaleLineAvg8(ScanLine, Source, SourceRect->right - SourceRect->left, DestRect->right - DestRect->left);
+ } /* if */
+ PrevSource = Source;
+ } /* if */
+
+ if (E >= Mid && PrevSourceAhead != (PIXEL *)((BYTE *)Source + SourceSurf->lDelta)) {
+ int x;
+ ScaleLineAvg8(ScanLineAhead, (PIXEL *)((BYTE *)Source + SourceSurf->lDelta), SourceRect->right - SourceRect->left, DestRect->right - DestRect->left);
+ for (x = 0; x < DestRect->right - DestRect->left; x++)
+ ScanLine[x] = average8(ScanLine[x], ScanLineAhead[x]);
+ PrevSourceAhead = (PIXEL *)((BYTE *)Source + SourceSurf->lDelta);
+ } /* if */
+
+ if (! FinalCopy8(Target, ScanLine, ClipSpans, ClipSpansCount, &SpanIndex, DestY, DestRect))
{
- sx = SourcePoint->x;
- DestBits = (PULONG)(DestSurf->pvScan0 + DestRect->left + j * DestSurf->lDelta);
- for (i=DestRect->left; i<RoundedRight; i+=4, DestBits++)
- {
- Dest = *DestBits;
- if (UsesSource)
- {
- Source = 0;
- for (k = 0; k < 4; k++)
- {
- Source |= (DIB_GetSource(SourceSurf, SourceGDI, sx + i + k, sy, ColorTranslation) << (k * 8));
- }
- }
- if (UsesPattern)
- {
- /* FIXME: No support for pattern brushes. */
- Pattern = (Brush->iSolidColor & 0xFF) |
- ((Brush->iSolidColor & 0xFF) << 8) |
- ((Brush->iSolidColor & 0xFF) << 16) |
- ((Brush->iSolidColor & 0xFF) << 24);
- }
- *DestBits = DIB_DoRop(Rop4, Dest, Source, Pattern);
- }
- if (i < DestRect->right)
- {
- Dest = *DestBits;
- for (; i < DestRect->right; i++)
- {
- if (UsesSource)
- {
- Source = DIB_GetSource(SourceSurf, SourceGDI, sx + i, sy, ColorTranslation);
- }
- if (UsesPattern)
- {
- /* FIXME: No support for pattern brushes. */
- Pattern = (Brush->iSolidColor & 0xFF) |
- ((Brush->iSolidColor & 0xFF) << 8) |
- ((Brush->iSolidColor & 0xFF) << 16) |
- ((Brush->iSolidColor & 0xFF) << 24);
- }
- DIB_8BPP_PutPixel(DestSurf, i, j, DIB_DoRop(Rop4, Dest, Source, Pattern) & 0xFFFF);
- Dest >>= 8;
- }
- }
+ /* No more spans, everything else is clipped away, we're done */
+ ExFreePool(ClipSpans);
+ ExFreePool(ScanLine);
+ ExFreePool(ScanLineAhead);
+ return TRUE;
}
+ DestY++;
+ Target = (PIXEL *)((BYTE *)Target + DestSurf->lDelta);
+ Source += IntPart;
+ E += FractPart;
+ if (E >= DestRect->bottom - DestRect->top) {
+ E -= DestRect->bottom - DestRect->top;
+ Source = (PIXEL *)((BYTE *)Source + SourceSurf->lDelta);
+ } /* if */
+ } /* while */
+
+ if (skip > 0 && Source != PrevSource)
+ ScaleLineAvg8(ScanLine, Source, SourceRect->right - SourceRect->left, DestRect->right - DestRect->left);
+ while (skip-- > 0) {
+ if (! FinalCopy8(Target, ScanLine, ClipSpans, ClipSpansCount, &SpanIndex, DestY, DestRect))
+ {
+ /* No more spans, everything else is clipped away, we're done */
+ ExFreePool(ClipSpans);
+ ExFreePool(ScanLine);
+ ExFreePool(ScanLineAhead);
+ return TRUE;
+ }
+ DestY++;
+ Target = (PIXEL *)((BYTE *)Target + DestSurf->lDelta);
+ } /* while */
+
+ ExFreePool(ClipSpans);
+ ExFreePool(ScanLine);
+ ExFreePool(ScanLineAhead);
+
+ return TRUE;
+}
+
+//NOTE: If you change something here, please do the same in other dibXXbpp.c files!
+BOOLEAN DIB_8BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
+ RECTL* DestRect, RECTL *SourceRect,
+ POINTL* MaskOrigin, POINTL BrushOrigin,
+ CLIPOBJ *ClipRegion, XLATEOBJ *ColorTranslation,
+ ULONG Mode)
+{
+ LONG SrcSizeY;
+ LONG SrcSizeX;
+ LONG DesSizeY;
+ LONG DesSizeX;
+ LONG sx;
+ LONG sy;
+ LONG DesX;
+ LONG DesY;
+ LONG color;
+
+ DPRINT("DIB_8BPP_StretchBlt: Source BPP: %u, srcRect: (%d,%d)-(%d,%d), dstRect: (%d,%d)-(%d,%d)\n",
+ BitsPerFormat(SourceSurf->iBitmapFormat), SourceRect->left, SourceRect->top, SourceRect->right, SourceRect->bottom,
+ DestRect->left, DestRect->top, DestRect->right, DestRect->bottom);
+
+ SrcSizeY = SourceRect->bottom - SourceRect->top;
+ SrcSizeX = SourceRect->right - SourceRect->left;
+
+ DesSizeY = DestRect->bottom - DestRect->top;
+ DesSizeX = DestRect->right - DestRect->left;
+
+ switch(SourceSurf->iBitmapFormat)
+ {
+ case BMF_1BPP:
+ /* FIXME : MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+ /* This is a reference implementation, it hasn't been optimized for speed */
+
+ for (DesY=DestRect->top; DesY<DestRect->bottom; DesY++)
+ {
+ sy = (((DesY - DestRect->top) * SrcSizeY) / DesSizeY) + SourceRect->top;
+
+ for (DesX=DestRect->left; DesX<DestRect->right; DesX++)
+ {
+ sx = (((DesX - DestRect->left) * SrcSizeX) / DesSizeX) + SourceRect->left;
+
+ if(DIB_1BPP_GetPixel(SourceSurf, sx, sy) == 0)
+ {
+ DIB_8BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, 0));
+ }
+ else
+ {
+ DIB_8BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, 1));
+ }
+ }
+ }
+
+ break;
+
+ case BMF_4BPP:
+ /* FIXME : MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+ /* This is a reference implementation, it hasn't been optimized for speed */
+
+ for (DesY=DestRect->top; DesY<DestRect->bottom; DesY++)
+ {
+ sy = (((DesY - DestRect->top) * SrcSizeY) / DesSizeY) + SourceRect->top;
+
+ for (DesX=DestRect->left; DesX<DestRect->right; DesX++)
+ {
+ sx = (((DesX - DestRect->left) * SrcSizeX) / DesSizeX) + SourceRect->left;
+ color = DIB_4BPP_GetPixel(SourceSurf, sx, sy);
+ DIB_8BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, color));
+ }
+ }
+ break;
+
+ case BMF_8BPP:
+ return ScaleRectAvg8(DestSurf, SourceSurf, DestRect, SourceRect, MaskOrigin, BrushOrigin,
+ ClipRegion, ColorTranslation, Mode);
+ break;
+
+ case BMF_16BPP:
+ /* FIXME : MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+ /* This is a reference implementation, it hasn't been optimized for speed */
+
+ for (DesY=DestRect->top; DesY<DestRect->bottom; DesY++)
+ {
+ sy = (((DesY - DestRect->top) * SrcSizeY) / DesSizeY) + SourceRect->top;
+
+ for (DesX=DestRect->left; DesX<DestRect->right; DesX++)
+ {
+ sx = (((DesX - DestRect->left) * SrcSizeX) / DesSizeX) + SourceRect->left;
+ color = DIB_16BPP_GetPixel(SourceSurf, sx, sy);
+ DIB_8BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, color));
+ }
+ }
+ break;
+
+ case BMF_24BPP:
+ /* FIXME : MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+ /* This is a reference implementation, it hasn't been optimized for speed */
+
+ for (DesY=DestRect->top; DesY<DestRect->bottom; DesY++)
+ {
+ sy = (((DesY - DestRect->top) * SrcSizeY) / DesSizeY) + SourceRect->top;
+
+ for (DesX=DestRect->left; DesX<DestRect->right; DesX++)
+ {
+ sx = (((DesX - DestRect->left) * SrcSizeX) / DesSizeX) + SourceRect->left;
+ color = DIB_24BPP_GetPixel(SourceSurf, sx, sy);
+ DIB_8BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, color));
+ }
+ }
+ break;
+
+ case BMF_32BPP:
+ /* FIXME : MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+ /* This is a reference implementation, it hasn't been optimized for speed */
+
+ for (DesY=DestRect->top; DesY<DestRect->bottom; DesY++)
+ {
+ sy = (((DesY - DestRect->top) * SrcSizeY) / DesSizeY) + SourceRect->top;
+
+ for (DesX=DestRect->left; DesX<DestRect->right; DesX++)
+ {
+ sx = (((DesX - DestRect->left) * SrcSizeX) / DesSizeX) + SourceRect->left;
+ color = DIB_32BPP_GetPixel(SourceSurf, sx, sy);
+ DIB_8BPP_PutPixel(DestSurf, DesX, DesY, XLATEOBJ_iXlate(ColorTranslation, color));
+ }
+ }
+ break;
+
+
+
+ default:
+ DPRINT1("DIB_8BPP_StretchBlt: Unhandled Source BPP: %u\n", BitsPerFormat(SourceSurf->iBitmapFormat));
+ return FALSE;
}
+
return TRUE;
}
+BOOLEAN
+DIB_8BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
+ RECTL* DestRect, POINTL *SourcePoint,
+ XLATEOBJ *ColorTranslation, ULONG iTransColor)
+{
+ ULONG RoundedRight, X, Y, SourceX, SourceY, Source, wd, Dest;
+ ULONG *DestBits;
+
+ RoundedRight = DestRect->right - ((DestRect->right - DestRect->left) & 0x3);
+ SourceY = SourcePoint->y;
+ DestBits = (ULONG*)((PBYTE)DestSurf->pvScan0 + DestRect->left +
+ (DestRect->top * DestSurf->lDelta));
+ wd = DestSurf->lDelta - (DestRect->right - DestRect->left);
+
+ for(Y = DestRect->top; Y < DestRect->bottom; Y++)
+ {
+ DestBits = (ULONG*)((PBYTE)DestSurf->pvScan0 + DestRect->left +
+ (Y * DestSurf->lDelta));
+ SourceX = SourcePoint->x;
+ for (X = DestRect->left; X < RoundedRight; X += 4, DestBits++)
+ {
+ Dest = *DestBits;
+
+ Source = DIB_GetSourceIndex(SourceSurf, SourceX++, SourceY);
+ if(Source != iTransColor)
+ {
+ Dest &= 0xFFFFFF00;
+ Dest |= (XLATEOBJ_iXlate(ColorTranslation, Source) & 0xFF);
+ }
+
+ Source = DIB_GetSourceIndex(SourceSurf, SourceX++, SourceY);
+ if(Source != iTransColor)
+ {
+ Dest &= 0xFFFF00FF;
+ Dest |= ((XLATEOBJ_iXlate(ColorTranslation, Source) << 8) & 0xFF00);
+ }
+
+ Source = DIB_GetSourceIndex(SourceSurf, SourceX++, SourceY);
+ if(Source != iTransColor)
+ {
+ Dest &= 0xFF00FFFF;
+ Dest |= ((XLATEOBJ_iXlate(ColorTranslation, Source) << 16) & 0xFF0000);
+ }
+
+ Source = DIB_GetSourceIndex(SourceSurf, SourceX++, SourceY);
+ if(Source != iTransColor)
+ {
+ Dest &= 0x00FFFFFF;
+ Dest |= ((XLATEOBJ_iXlate(ColorTranslation, Source) << 24) & 0xFF000000);
+ }
+
+ *DestBits = Dest;
+ }
+
+ if(X < DestRect->right)
+ {
+ for (; X < DestRect->right; X++)
+ {
+ Source = DIB_GetSourceIndex(SourceSurf, SourceX++, SourceY);
+ if(Source != iTransColor)
+ {
+ *((BYTE*)DestBits) = (BYTE)(XLATEOBJ_iXlate(ColorTranslation, Source) & 0xFF);
+ }
+ DestBits = (PULONG)((ULONG_PTR)DestBits + 1);
+ }
+ }
+ SourceY++;
+ }
+
+ return TRUE;
+}
+
+typedef union {
+ ULONG ul;
+ struct {
+ UCHAR red;
+ UCHAR green;
+ UCHAR blue;
+ UCHAR alpha;
+ } col;
+} NICEPIXEL32;
+
+typedef union {
+ USHORT us;
+ struct {
+ USHORT red:5,
+ green:6,
+ blue:5;
+ } col;
+} NICEPIXEL16;
+
+STATIC inline UCHAR
+Clamp8(ULONG val)
+{
+ return (val > 255) ? 255 : val;
+}
+
+BOOLEAN
+DIB_8BPP_AlphaBlend(SURFOBJ* Dest, SURFOBJ* Source, RECTL* DestRect,
+ RECTL* SourceRect, CLIPOBJ* ClipRegion,
+ XLATEOBJ* ColorTranslation, BLENDOBJ* BlendObj)
+{
+ INT Rows, Cols, SrcX, SrcY;
+ register PUCHAR Dst;
+ ULONG DstDelta;
+ BLENDFUNCTION BlendFunc;
+ register NICEPIXEL32 DstPixel;
+ register NICEPIXEL32 SrcPixel;
+ register NICEPIXEL16 SrcPixel16;
+ UCHAR Alpha, SrcBpp;
+ HPALETTE SrcPalette, DstPalette;
+ XLATEOBJ *SrcTo32Xlate, *DstTo32Xlate, *DstFrom32Xlate;
+
+ DPRINT("DIB_8BPP_AlphaBlend: srcRect: (%d,%d)-(%d,%d), dstRect: (%d,%d)-(%d,%d)\n",
+ SourceRect->left, SourceRect->top, SourceRect->right, SourceRect->bottom,
+ DestRect->left, DestRect->top, DestRect->right, DestRect->bottom);
+
+ ASSERT(DestRect->bottom - DestRect->top == SourceRect->bottom - SourceRect->top &&
+ DestRect->right - DestRect->left == SourceRect->right - SourceRect->left);
+
+ BlendFunc = BlendObj->BlendFunction;
+ if (BlendFunc.BlendOp != AC_SRC_OVER)
+ {
+ DPRINT1("BlendOp != AC_SRC_OVER\n");
+ return FALSE;
+ }
+ if (BlendFunc.BlendFlags != 0)
+ {
+ DPRINT1("BlendFlags != 0\n");
+ return FALSE;
+ }
+ if ((BlendFunc.AlphaFormat & ~AC_SRC_ALPHA) != 0)
+ {
+ DPRINT1("Unsupported AlphaFormat (0x%x)\n", BlendFunc.AlphaFormat);
+ return FALSE;
+ }
+ if ((BlendFunc.AlphaFormat & AC_SRC_ALPHA) != 0 &&
+ BitsPerFormat(Source->iBitmapFormat) != 32)
+ {
+ DPRINT1("Source bitmap must be 32bpp when AC_SRC_ALPHA is set\n");
+ return FALSE;
+ }
+
+ SrcBpp = BitsPerFormat(Source->iBitmapFormat);
+ SrcPalette = IntEngGetXlatePalette(ColorTranslation, XO_SRCPALETTE);
+ if (SrcPalette != 0)
+ {
+ SrcTo32Xlate = IntEngCreateXlate(PAL_RGB, 0, NULL, SrcPalette);
+ if (SrcTo32Xlate == NULL)
+ {
+ DPRINT1("IntEngCreateXlate failed\n");
+ return FALSE;
+ }
+ }
+ else
+ {
+ SrcTo32Xlate = NULL;
+ ASSERT(SrcBpp >= 16);
+ }
+
+ DstPalette = IntEngGetXlatePalette(ColorTranslation, XO_DESTPALETTE);
+ DstTo32Xlate = IntEngCreateXlate(PAL_RGB, 0, NULL, DstPalette);
+ DstFrom32Xlate = IntEngCreateXlate(0, PAL_RGB, DstPalette, NULL);
+ if (DstTo32Xlate == NULL || DstFrom32Xlate == NULL)
+ {
+ if (SrcTo32Xlate != NULL)
+ EngDeleteXlate(SrcTo32Xlate);
+ if (DstTo32Xlate != NULL)
+ EngDeleteXlate(DstTo32Xlate);
+ if (DstFrom32Xlate != NULL)
+ EngDeleteXlate(DstFrom32Xlate);
+ DPRINT1("IntEngCreateXlate failed\n");
+ return FALSE;
+ }
+
+ Dst = (PUCHAR)((ULONG_PTR)Dest->pvScan0 + (DestRect->top * Dest->lDelta) +
+ DestRect->left);
+ DstDelta = Dest->lDelta - (DestRect->right - DestRect->left);
+
+ Rows = DestRect->bottom - DestRect->top;
+ SrcY = SourceRect->top;
+ while (--Rows >= 0)
+ {
+ Cols = DestRect->right - DestRect->left;
+ SrcX = SourceRect->left;
+ while (--Cols >= 0)
+ {
+ if (SrcTo32Xlate != NULL)
+ {
+ SrcPixel.ul = DIB_GetSource(Source, SrcX++, SrcY, SrcTo32Xlate);
+ }
+ else if (SrcBpp <= 16)
+ {
+ SrcPixel16.us = DIB_GetSource(Source, SrcX++, SrcY, ColorTranslation);
+ SrcPixel.col.red = (SrcPixel16.col.red << 3) | (SrcPixel16.col.red >> 2);
+ SrcPixel.col.green = (SrcPixel16.col.green << 2) | (SrcPixel16.col.green >> 4);
+ SrcPixel.col.blue = (SrcPixel16.col.blue << 3) | (SrcPixel16.col.blue >> 2);
+ }
+ else
+ {
+ SrcPixel.ul = DIB_GetSourceIndex(Source, SrcX++, SrcY);
+ }
+ SrcPixel.col.red = SrcPixel.col.red * BlendFunc.SourceConstantAlpha / 255;
+ SrcPixel.col.green = SrcPixel.col.green * BlendFunc.SourceConstantAlpha / 255;
+ SrcPixel.col.blue = SrcPixel.col.blue * BlendFunc.SourceConstantAlpha / 255;
+ SrcPixel.col.alpha = (SrcBpp == 32) ? (SrcPixel.col.alpha * BlendFunc.SourceConstantAlpha / 255) : BlendFunc.SourceConstantAlpha;
+
+ Alpha = ((BlendFunc.AlphaFormat & AC_SRC_ALPHA) != 0) ?
+ SrcPixel.col.alpha : BlendFunc.SourceConstantAlpha;
+
+ DstPixel.ul = XLATEOBJ_iXlate(DstTo32Xlate, *Dst);
+ DstPixel.col.red = Clamp8(DstPixel.col.red * (255 - Alpha) / 255 + SrcPixel.col.red);
+ DstPixel.col.green = Clamp8(DstPixel.col.green * (255 - Alpha) / 255 + SrcPixel.col.green);
+ DstPixel.col.blue = Clamp8(DstPixel.col.blue * (255 - Alpha) / 255 + SrcPixel.col.blue);
+ *Dst++ = XLATEOBJ_iXlate(DstFrom32Xlate, DstPixel.ul);
+ }
+ Dst = (PUCHAR)((ULONG_PTR)Dst + DstDelta);
+ SrcY++;
+ }
+
+ if (SrcTo32Xlate != NULL)
+ EngDeleteXlate(SrcTo32Xlate);
+ if (DstTo32Xlate != NULL)
+ EngDeleteXlate(DstTo32Xlate);
+ if (DstFrom32Xlate != NULL)
+ EngDeleteXlate(DstFrom32Xlate);
+
+ return TRUE;
+}
+
/* EOF */
projects / reactos.git / blobdiff