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971 lines
30 KiB
C
971 lines
30 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: GDI BitBlt Functions
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* FILE: subsys/win32k/eng/bitblt.c
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* PROGRAMER: Jason Filby
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* Timo Kreuzer
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* REVISION HISTORY:
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* 2/10/1999: Created
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*/
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#include <win32k.h>
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#define NDEBUG
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#include <debug.h>
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typedef BOOLEAN (APIENTRY *PBLTRECTFUNC)(SURFOBJ* OutputObj,
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SURFOBJ* InputObj,
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SURFOBJ* Mask,
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XLATEOBJ* ColorTranslation,
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RECTL* OutputRect,
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POINTL* InputPoint,
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POINTL* MaskOrigin,
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BRUSHOBJ* pbo,
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POINTL* BrushOrigin,
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ROP4 Rop4);
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static BOOLEAN APIENTRY
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BltMask(SURFOBJ* psoDest,
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SURFOBJ* psoSource, // unused
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SURFOBJ* psoMask,
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XLATEOBJ* ColorTranslation, // unused
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RECTL* prclDest,
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POINTL* pptlSource, // unused
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POINTL* pptlMask,
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BRUSHOBJ* pbo,
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POINTL* pptlBrush,
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ROP4 Rop4)
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{
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LONG x, y;
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BYTE *pjMskLine, *pjMskCurrent;
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BYTE fjMaskBit0, fjMaskBit;
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/* Pattern brushes */
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PEBRUSHOBJ pebo = NULL;
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SURFOBJ *psoPattern = NULL;
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PSURFACE psurfPattern;
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ULONG PatternWidth = 0, PatternHeight = 0;
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LONG PatternX0 = 0, PatternX = 0, PatternY = 0;
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PFN_DIB_PutPixel fnDest_PutPixel = NULL;
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PFN_DIB_GetPixel fnPattern_GetPixel = NULL;
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ULONG Pattern = 0;
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HBITMAP hbmPattern;
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ASSERT(psoSource == NULL);
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ASSERT(pptlSource == NULL);
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if (psoMask == NULL)
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{
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return FALSE;
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}
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if (pbo && pbo->iSolidColor == 0xFFFFFFFF)
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{
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pebo = CONTAINING_RECORD(pbo, EBRUSHOBJ, BrushObject);
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hbmPattern = EBRUSHOBJ_pvGetEngBrush(pebo);
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psurfPattern = SURFACE_LockSurface(hbmPattern);
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if (psurfPattern != NULL)
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{
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psoPattern = &psurfPattern->SurfObj;
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PatternWidth = psoPattern->sizlBitmap.cx;
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PatternHeight = psoPattern->sizlBitmap.cy;
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fnPattern_GetPixel = DibFunctionsForBitmapFormat[psoPattern->iBitmapFormat].DIB_GetPixel;
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}
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}
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else
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psurfPattern = NULL;
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pjMskLine = (PBYTE)psoMask->pvScan0 + pptlMask->y * psoMask->lDelta + (pptlMask->x >> 3);
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fjMaskBit0 = 0x80 >> (pptlMask->x & 0x07);
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fnDest_PutPixel = DibFunctionsForBitmapFormat[psoDest->iBitmapFormat].DIB_PutPixel;
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if (psurfPattern)
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{
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PatternY = (prclDest->top - pptlBrush->y) % PatternHeight;
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if (PatternY < 0)
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{
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PatternY += PatternHeight;
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}
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PatternX0 = (prclDest->left - pptlBrush->x) % PatternWidth;
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if (PatternX0 < 0)
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{
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PatternX0 += PatternWidth;
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}
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for (y = prclDest->top; y < prclDest->bottom; y++)
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{
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pjMskCurrent = pjMskLine;
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fjMaskBit = fjMaskBit0;
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PatternX = PatternX0;
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for (x = prclDest->left; x < prclDest->right; x++)
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{
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if (*pjMskCurrent & fjMaskBit)
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{
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fnDest_PutPixel(psoDest, x, y,
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fnPattern_GetPixel(psoPattern, PatternX, PatternY));
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}
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fjMaskBit = _rotr8(fjMaskBit, 1);
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pjMskCurrent += (fjMaskBit >> 7);
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PatternX++;
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PatternX %= PatternWidth;
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}
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pjMskLine += psoMask->lDelta;
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PatternY++;
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PatternY %= PatternHeight;
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}
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}
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else
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{
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Pattern = pbo ? pbo->iSolidColor : 0;
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for (y = prclDest->top; y < prclDest->bottom; y++)
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{
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pjMskCurrent = pjMskLine;
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fjMaskBit = fjMaskBit0;
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for (x = prclDest->left; x < prclDest->right; x++)
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{
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if (*pjMskCurrent & fjMaskBit)
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{
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fnDest_PutPixel(psoDest, x, y, Pattern);
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}
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fjMaskBit = _rotr8(fjMaskBit, 1);
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pjMskCurrent += (fjMaskBit >> 7);
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}
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pjMskLine += psoMask->lDelta;
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}
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}
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if (psurfPattern)
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SURFACE_UnlockSurface(psurfPattern);
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return TRUE;
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}
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static BOOLEAN APIENTRY
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BltPatCopy(SURFOBJ* Dest,
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SURFOBJ* Source,
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SURFOBJ* Mask,
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XLATEOBJ* ColorTranslation,
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RECTL* DestRect,
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POINTL* SourcePoint,
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POINTL* MaskPoint,
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BRUSHOBJ* pbo,
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POINTL* BrushPoint,
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ROP4 Rop4)
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{
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// These functions are assigned if we're working with a DIB
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// The assigned functions depend on the bitsPerPixel of the DIB
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DibFunctionsForBitmapFormat[Dest->iBitmapFormat].DIB_ColorFill(Dest, DestRect, pbo ? pbo->iSolidColor : 0);
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return TRUE;
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}
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static BOOLEAN APIENTRY
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CallDibBitBlt(SURFOBJ* OutputObj,
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SURFOBJ* InputObj,
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SURFOBJ* Mask,
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XLATEOBJ* ColorTranslation,
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RECTL* OutputRect,
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POINTL* InputPoint,
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POINTL* MaskOrigin,
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BRUSHOBJ* pbo,
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POINTL* BrushOrigin,
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ROP4 Rop4)
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{
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BLTINFO BltInfo;
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PEBRUSHOBJ GdiBrush = NULL;
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SURFACE *psurfPattern;
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BOOLEAN Result;
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HBITMAP hbmPattern;
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BltInfo.DestSurface = OutputObj;
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BltInfo.SourceSurface = InputObj;
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BltInfo.PatternSurface = NULL;
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BltInfo.XlateSourceToDest = ColorTranslation;
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BltInfo.DestRect = *OutputRect;
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BltInfo.SourcePoint = *InputPoint;
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if (ROP3_TO_ROP4(SRCCOPY) == Rop4)
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return DibFunctionsForBitmapFormat[OutputObj->iBitmapFormat].DIB_BitBltSrcCopy(&BltInfo);
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BltInfo.Brush = pbo;
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BltInfo.BrushOrigin = *BrushOrigin;
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BltInfo.Rop4 = Rop4;
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/* Pattern brush */
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if (ROP4_USES_PATTERN(Rop4) && pbo && pbo->iSolidColor == 0xFFFFFFFF)
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{
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GdiBrush = CONTAINING_RECORD(pbo, EBRUSHOBJ, BrushObject);
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hbmPattern = EBRUSHOBJ_pvGetEngBrush(GdiBrush);
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psurfPattern = SURFACE_LockSurface(hbmPattern);
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if (psurfPattern)
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{
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BltInfo.PatternSurface = &psurfPattern->SurfObj;
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}
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else
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{
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/* FIXME - What to do here? */
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}
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}
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else
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{
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psurfPattern = NULL;
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}
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Result = DibFunctionsForBitmapFormat[OutputObj->iBitmapFormat].DIB_BitBlt(&BltInfo);
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/* Pattern brush */
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if (psurfPattern)
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{
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SURFACE_UnlockSurface(psurfPattern);
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}
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return Result;
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}
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INT __cdecl abs(INT nm);
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/*
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* @implemented
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*/
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BOOL APIENTRY
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NtGdiEngBitBlt(
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IN SURFOBJ *psoTrg,
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IN SURFOBJ *psoSrc,
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IN SURFOBJ *psoMask,
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IN CLIPOBJ *pco,
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IN XLATEOBJ *pxlo,
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IN RECTL *prclTrg,
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IN POINTL *pptlSrc,
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IN POINTL *pptlMask,
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IN BRUSHOBJ *pbo,
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IN POINTL *pptlBrush,
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IN ROP4 rop4 )
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{
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RECTL rclTrg;
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POINTL ptlSrc;
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POINTL ptlMask;
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POINTL ptlBrush;
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_SEH2_TRY
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{
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ProbeForRead(prclTrg, sizeof(RECTL), 1);
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RtlCopyMemory(&rclTrg,prclTrg, sizeof(RECTL));
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ProbeForRead(pptlSrc, sizeof(POINTL), 1);
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RtlCopyMemory(&ptlSrc, pptlSrc, sizeof(POINTL));
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ProbeForRead(pptlMask, sizeof(POINTL), 1);
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RtlCopyMemory(&ptlMask, pptlMask, sizeof(POINTL));
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ProbeForRead(pptlBrush, sizeof(POINTL), 1);
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RtlCopyMemory(&ptlBrush, pptlBrush, sizeof(POINTL));
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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_SEH2_YIELD(return FALSE);
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}
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_SEH2_END;
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return EngBitBlt(psoTrg, psoSrc, psoMask, pco, pxlo, &rclTrg, &ptlSrc, &ptlMask, pbo, &ptlBrush, rop4);
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}
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/*
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* @implemented
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*/
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BOOL APIENTRY
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EngBitBlt(SURFOBJ *DestObj,
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SURFOBJ *SourceObj,
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SURFOBJ *Mask,
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CLIPOBJ *ClipRegion,
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XLATEOBJ *ColorTranslation,
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RECTL *DestRect,
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POINTL *SourcePoint,
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POINTL *MaskOrigin,
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BRUSHOBJ *pbo,
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POINTL *BrushOrigin,
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ROP4 rop4)
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{
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BYTE clippingType;
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RECTL CombinedRect;
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RECT_ENUM RectEnum;
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BOOL EnumMore;
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POINTL InputPoint;
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RECTL InputRect;
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RECTL OutputRect;
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SURFOBJ* InputObj = 0;
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SURFOBJ* OutputObj;
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PBLTRECTFUNC BltRectFunc;
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BOOLEAN Ret = TRUE;
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RECTL ClipRect;
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unsigned i;
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POINTL Pt;
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ULONG Direction;
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BOOL UsesSource;
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POINTL AdjustedBrushOrigin;
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UsesSource = ROP4_USES_SOURCE(rop4);
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if (R4_NOOP == rop4)
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{
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/* Copy destination onto itself: nop */
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return TRUE;
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}
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OutputRect = *DestRect;
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if (OutputRect.right < OutputRect.left)
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{
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OutputRect.left = DestRect->right;
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OutputRect.right = DestRect->left;
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}
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if (OutputRect.bottom < OutputRect.top)
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{
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OutputRect.left = DestRect->right;
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OutputRect.right = DestRect->left;
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}
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if (UsesSource)
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{
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if (NULL == SourcePoint)
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{
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return FALSE;
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}
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/* Make sure we don't try to copy anything outside the valid source
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region */
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InputPoint = *SourcePoint;
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if (InputPoint.x < 0)
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{
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OutputRect.left -= InputPoint.x;
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InputPoint.x = 0;
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}
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if (InputPoint.y < 0)
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{
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OutputRect.top -= InputPoint.y;
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InputPoint.y = 0;
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}
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if (SourceObj->sizlBitmap.cx < InputPoint.x +
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OutputRect.right - OutputRect.left)
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{
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OutputRect.right = OutputRect.left +
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SourceObj->sizlBitmap.cx - InputPoint.x;
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}
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if (SourceObj->sizlBitmap.cy < InputPoint.y +
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OutputRect.bottom - OutputRect.top)
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{
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OutputRect.bottom = OutputRect.top +
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SourceObj->sizlBitmap.cy - InputPoint.y;
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}
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InputRect.left = InputPoint.x;
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InputRect.right = InputPoint.x + (OutputRect.right - OutputRect.left);
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InputRect.top = InputPoint.y;
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InputRect.bottom = InputPoint.y + (OutputRect.bottom - OutputRect.top);
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InputObj = SourceObj;
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}
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else
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{
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InputRect.left = 0;
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InputRect.right = DestRect->right - DestRect->left;
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InputRect.top = 0;
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InputRect.bottom = DestRect->bottom - DestRect->top;
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}
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if (NULL != ClipRegion)
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{
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if (OutputRect.left < ClipRegion->rclBounds.left)
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{
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InputRect.left += ClipRegion->rclBounds.left - OutputRect.left;
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InputPoint.x += ClipRegion->rclBounds.left - OutputRect.left;
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OutputRect.left = ClipRegion->rclBounds.left;
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}
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if (ClipRegion->rclBounds.right < OutputRect.right)
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{
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InputRect.right -= OutputRect.right - ClipRegion->rclBounds.right;
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OutputRect.right = ClipRegion->rclBounds.right;
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}
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if (OutputRect.top < ClipRegion->rclBounds.top)
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{
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InputRect.top += ClipRegion->rclBounds.top - OutputRect.top;
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InputPoint.y += ClipRegion->rclBounds.top - OutputRect.top;
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OutputRect.top = ClipRegion->rclBounds.top;
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}
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if (ClipRegion->rclBounds.bottom < OutputRect.bottom)
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{
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InputRect.bottom -= OutputRect.bottom - ClipRegion->rclBounds.bottom;
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OutputRect.bottom = ClipRegion->rclBounds.bottom;
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}
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}
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/* Check for degenerate case: if height or width of OutputRect is 0 pixels
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there's nothing to do */
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if (OutputRect.right <= OutputRect.left ||
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OutputRect.bottom <= OutputRect.top)
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{
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return TRUE;
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}
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OutputObj = DestObj;
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if (BrushOrigin)
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{
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AdjustedBrushOrigin.x = BrushOrigin->x;
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AdjustedBrushOrigin.y = BrushOrigin->y;
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}
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else
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{
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AdjustedBrushOrigin.x = 0;
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AdjustedBrushOrigin.y = 0;
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}
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/* Determine clipping type */
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if (ClipRegion == (CLIPOBJ *) NULL)
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{
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clippingType = DC_TRIVIAL;
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}
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else
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{
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clippingType = ClipRegion->iDComplexity;
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}
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if (R4_MASK == rop4)
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{
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BltRectFunc = BltMask;
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}
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else if (ROP3_TO_ROP4(PATCOPY) == rop4)
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{
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if (pbo && pbo->iSolidColor == 0xFFFFFFFF)
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BltRectFunc = CallDibBitBlt;
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else
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BltRectFunc = BltPatCopy;
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}
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else
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{
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BltRectFunc = CallDibBitBlt;
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}
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switch (clippingType)
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{
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case DC_TRIVIAL:
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Ret = (*BltRectFunc)(OutputObj, InputObj, Mask, ColorTranslation,
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&OutputRect, &InputPoint, MaskOrigin, pbo,
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&AdjustedBrushOrigin, rop4);
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break;
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case DC_RECT:
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/* Clip the blt to the clip rectangle */
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ClipRect.left = ClipRegion->rclBounds.left;
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ClipRect.right = ClipRegion->rclBounds.right;
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ClipRect.top = ClipRegion->rclBounds.top;
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ClipRect.bottom = ClipRegion->rclBounds.bottom;
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if (RECTL_bIntersectRect(&CombinedRect, &OutputRect, &ClipRect))
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{
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Pt.x = InputPoint.x + CombinedRect.left - OutputRect.left;
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Pt.y = InputPoint.y + CombinedRect.top - OutputRect.top;
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Ret = (*BltRectFunc)(OutputObj, InputObj, Mask, ColorTranslation,
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&CombinedRect, &Pt, MaskOrigin, pbo,
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&AdjustedBrushOrigin, rop4);
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}
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break;
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case DC_COMPLEX:
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Ret = TRUE;
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if (OutputObj == InputObj)
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{
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if (OutputRect.top < InputPoint.y)
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{
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Direction = OutputRect.left < InputPoint.x ?
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CD_RIGHTDOWN : CD_LEFTDOWN;
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}
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else
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{
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Direction = OutputRect.left < InputPoint.x ?
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CD_RIGHTUP : CD_LEFTUP;
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}
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}
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else
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{
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Direction = CD_ANY;
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}
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CLIPOBJ_cEnumStart(ClipRegion, FALSE, CT_RECTANGLES, Direction, 0);
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do
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{
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EnumMore = CLIPOBJ_bEnum(ClipRegion,(ULONG) sizeof(RectEnum),
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(PVOID) &RectEnum);
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for (i = 0; i < RectEnum.c; i++)
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{
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ClipRect.left = RectEnum.arcl[i].left;
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ClipRect.right = RectEnum.arcl[i].right;
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ClipRect.top = RectEnum.arcl[i].top;
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ClipRect.bottom = RectEnum.arcl[i].bottom;
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if (RECTL_bIntersectRect(&CombinedRect, &OutputRect, &ClipRect))
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{
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Pt.x = InputPoint.x + CombinedRect.left - OutputRect.left;
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Pt.y = InputPoint.y + CombinedRect.top - OutputRect.top;
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Ret = (*BltRectFunc)(OutputObj, InputObj, Mask,
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ColorTranslation, &CombinedRect, &Pt,
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MaskOrigin, pbo, &AdjustedBrushOrigin,
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rop4) && Ret;
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}
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}
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}
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while (EnumMore);
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break;
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}
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return Ret;
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}
|
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|
|
BOOL APIENTRY
|
|
IntEngBitBlt(
|
|
SURFOBJ *psoTrg,
|
|
SURFOBJ *psoSrc,
|
|
SURFOBJ *psoMask,
|
|
CLIPOBJ *pco,
|
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XLATEOBJ *pxlo,
|
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RECTL *prclTrg,
|
|
POINTL *pptlSrc,
|
|
POINTL *pptlMask,
|
|
BRUSHOBJ *pbo,
|
|
POINTL *pptlBrush,
|
|
ROP4 rop4)
|
|
{
|
|
SURFACE *psurfTrg;
|
|
SURFACE *psurfSrc = NULL;
|
|
BOOL bResult;
|
|
RECTL rclClipped;
|
|
RECTL rclSrc;
|
|
// INTENG_ENTER_LEAVE EnterLeaveSource;
|
|
// INTENG_ENTER_LEAVE EnterLeaveDest;
|
|
PFN_DrvBitBlt pfnBitBlt;
|
|
|
|
ASSERT(psoTrg);
|
|
psurfTrg = CONTAINING_RECORD(psoTrg, SURFACE, SurfObj);
|
|
|
|
/* FIXME: Should we really allow to pass non-well-ordered rects? */
|
|
rclClipped = *prclTrg;
|
|
RECTL_vMakeWellOrdered(&rclClipped);
|
|
|
|
/* Clip target rect against the bounds of the clipping region */
|
|
if (pco)
|
|
{
|
|
if (!RECTL_bIntersectRect(&rclClipped, &rclClipped, &pco->rclBounds))
|
|
{
|
|
/* Nothing left */
|
|
return TRUE;
|
|
}
|
|
|
|
/* Don't pass a clipobj with only a single rect */
|
|
if (pco->iDComplexity == DC_RECT)
|
|
pco = NULL;
|
|
}
|
|
|
|
if (ROP4_USES_SOURCE(rop4))
|
|
{
|
|
ASSERT(psoSrc);
|
|
psurfSrc = CONTAINING_RECORD(psoSrc, SURFACE, SurfObj);
|
|
|
|
/* Calculate source rect */
|
|
rclSrc.left = pptlSrc->x + rclClipped.left - prclTrg->left;
|
|
rclSrc.top = pptlSrc->y + rclClipped.top - prclTrg->top;
|
|
rclSrc.right = rclSrc.left + rclClipped.right - rclClipped.left;
|
|
rclSrc.bottom = rclSrc.top + rclClipped.bottom - rclClipped.top;
|
|
}
|
|
else
|
|
{
|
|
psoSrc = NULL;
|
|
psurfSrc = NULL;
|
|
}
|
|
|
|
/* Is the target surface device managed? */
|
|
if (psurfTrg->flags & HOOK_BITBLT)
|
|
{
|
|
/* Is the source a different device managed surface? */
|
|
if (psoSrc && psoSrc->hdev != psoTrg->hdev && psurfSrc->flags & HOOK_BITBLT)
|
|
{
|
|
DPRINT1("Need to copy to standard bitmap format!\n");
|
|
ASSERT(FALSE);
|
|
}
|
|
|
|
pfnBitBlt = GDIDEVFUNCS(psoTrg).BitBlt;
|
|
}
|
|
|
|
/* Is the source surface device managed? */
|
|
else if (psoSrc && psurfSrc->flags & HOOK_BITBLT)
|
|
{
|
|
pfnBitBlt = GDIDEVFUNCS(psoSrc).BitBlt;
|
|
}
|
|
else
|
|
{
|
|
pfnBitBlt = EngBitBlt;
|
|
}
|
|
|
|
bResult = pfnBitBlt(psoTrg,
|
|
psoSrc,
|
|
psoMask,
|
|
pco,
|
|
pxlo,
|
|
&rclClipped,
|
|
(POINTL*)&rclSrc,
|
|
pptlMask,
|
|
pbo,
|
|
pptlBrush,
|
|
rop4);
|
|
|
|
// FIXME: cleanup temp surface!
|
|
|
|
return bResult;
|
|
}
|
|
|
|
|
|
/**** REACTOS FONT RENDERING CODE *********************************************/
|
|
|
|
/* renders the alpha mask bitmap */
|
|
static BOOLEAN APIENTRY
|
|
AlphaBltMask(SURFOBJ* psoDest,
|
|
SURFOBJ* psoSource, // unused
|
|
SURFOBJ* psoMask,
|
|
XLATEOBJ* pxloRGB2Dest,
|
|
XLATEOBJ* pxloBrush,
|
|
RECTL* prclDest,
|
|
POINTL* pptlSource, // unused
|
|
POINTL* pptlMask,
|
|
BRUSHOBJ* pbo,
|
|
POINTL* pptlBrush)
|
|
{
|
|
LONG i, j, dx, dy;
|
|
int r, g, b;
|
|
ULONG Background, BrushColor, NewColor;
|
|
BYTE *tMask, *lMask;
|
|
|
|
ASSERT(psoSource == NULL);
|
|
ASSERT(pptlSource == NULL);
|
|
|
|
dx = prclDest->right - prclDest->left;
|
|
dy = prclDest->bottom - prclDest->top;
|
|
|
|
if (psoMask != NULL)
|
|
{
|
|
BrushColor = XLATEOBJ_iXlate(pxloBrush, pbo ? pbo->iSolidColor : 0);
|
|
r = (int)GetRValue(BrushColor);
|
|
g = (int)GetGValue(BrushColor);
|
|
b = (int)GetBValue(BrushColor);
|
|
|
|
tMask = (PBYTE)psoMask->pvScan0 + (pptlMask->y * psoMask->lDelta) + pptlMask->x;
|
|
for (j = 0; j < dy; j++)
|
|
{
|
|
lMask = tMask;
|
|
for (i = 0; i < dx; i++)
|
|
{
|
|
if (*lMask > 0)
|
|
{
|
|
if (*lMask == 0xff)
|
|
{
|
|
DibFunctionsForBitmapFormat[psoDest->iBitmapFormat].DIB_PutPixel(
|
|
psoDest, prclDest->left + i, prclDest->top + j, pbo ? pbo->iSolidColor : 0);
|
|
}
|
|
else
|
|
{
|
|
Background = DIB_GetSource(psoDest, prclDest->left + i, prclDest->top + j,
|
|
pxloBrush);
|
|
|
|
NewColor =
|
|
RGB((*lMask * (r - GetRValue(Background)) >> 8) + GetRValue(Background),
|
|
(*lMask * (g - GetGValue(Background)) >> 8) + GetGValue(Background),
|
|
(*lMask * (b - GetBValue(Background)) >> 8) + GetBValue(Background));
|
|
|
|
Background = XLATEOBJ_iXlate(pxloRGB2Dest, NewColor);
|
|
DibFunctionsForBitmapFormat[psoDest->iBitmapFormat].DIB_PutPixel(
|
|
psoDest, prclDest->left + i, prclDest->top + j, Background);
|
|
}
|
|
}
|
|
lMask++;
|
|
}
|
|
tMask += psoMask->lDelta;
|
|
}
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static
|
|
BOOL APIENTRY
|
|
EngMaskBitBlt(SURFOBJ *psoDest,
|
|
SURFOBJ *psoMask,
|
|
CLIPOBJ *ClipRegion,
|
|
XLATEOBJ *DestColorTranslation,
|
|
XLATEOBJ *SourceColorTranslation,
|
|
RECTL *DestRect,
|
|
POINTL *pptlMask,
|
|
BRUSHOBJ *pbo,
|
|
POINTL *BrushOrigin)
|
|
{
|
|
BYTE clippingType;
|
|
RECTL CombinedRect;
|
|
RECT_ENUM RectEnum;
|
|
BOOL EnumMore;
|
|
POINTL InputPoint;
|
|
RECTL InputRect;
|
|
RECTL OutputRect;
|
|
POINTL Translate;
|
|
INTENG_ENTER_LEAVE EnterLeaveSource;
|
|
INTENG_ENTER_LEAVE EnterLeaveDest;
|
|
SURFOBJ* psoInput;
|
|
SURFOBJ* psoOutput;
|
|
BOOLEAN Ret = TRUE;
|
|
RECTL ClipRect;
|
|
unsigned i;
|
|
POINTL Pt;
|
|
ULONG Direction;
|
|
POINTL AdjustedBrushOrigin;
|
|
|
|
ASSERT(psoMask);
|
|
|
|
if (pptlMask)
|
|
{
|
|
InputRect.left = pptlMask->x;
|
|
InputRect.right = pptlMask->x + (DestRect->right - DestRect->left);
|
|
InputRect.top = pptlMask->y;
|
|
InputRect.bottom = pptlMask->y + (DestRect->bottom - DestRect->top);
|
|
}
|
|
else
|
|
{
|
|
InputRect.left = 0;
|
|
InputRect.right = DestRect->right - DestRect->left;
|
|
InputRect.top = 0;
|
|
InputRect.bottom = DestRect->bottom - DestRect->top;
|
|
}
|
|
|
|
OutputRect = *DestRect;
|
|
if (NULL != ClipRegion)
|
|
{
|
|
if (OutputRect.left < ClipRegion->rclBounds.left)
|
|
{
|
|
InputRect.left += ClipRegion->rclBounds.left - OutputRect.left;
|
|
OutputRect.left = ClipRegion->rclBounds.left;
|
|
}
|
|
if (ClipRegion->rclBounds.right < OutputRect.right)
|
|
{
|
|
InputRect.right -= OutputRect.right - ClipRegion->rclBounds.right;
|
|
OutputRect.right = ClipRegion->rclBounds.right;
|
|
}
|
|
if (OutputRect.top < ClipRegion->rclBounds.top)
|
|
{
|
|
InputRect.top += ClipRegion->rclBounds.top - OutputRect.top;
|
|
OutputRect.top = ClipRegion->rclBounds.top;
|
|
}
|
|
if (ClipRegion->rclBounds.bottom < OutputRect.bottom)
|
|
{
|
|
InputRect.bottom -= OutputRect.bottom - ClipRegion->rclBounds.bottom;
|
|
OutputRect.bottom = ClipRegion->rclBounds.bottom;
|
|
}
|
|
}
|
|
|
|
if (! IntEngEnter(&EnterLeaveSource, psoMask, &InputRect, TRUE, &Translate, &psoInput))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
InputPoint.x = InputRect.left + Translate.x;
|
|
InputPoint.y = InputRect.top + Translate.y;
|
|
|
|
/* Check for degenerate case: if height or width of OutputRect is 0 pixels there's
|
|
nothing to do */
|
|
if (OutputRect.right <= OutputRect.left || OutputRect.bottom <= OutputRect.top)
|
|
{
|
|
IntEngLeave(&EnterLeaveSource);
|
|
return TRUE;
|
|
}
|
|
|
|
if (! IntEngEnter(&EnterLeaveDest, psoDest, &OutputRect, FALSE, &Translate, &psoOutput))
|
|
{
|
|
IntEngLeave(&EnterLeaveSource);
|
|
return FALSE;
|
|
}
|
|
|
|
OutputRect.left = DestRect->left + Translate.x;
|
|
OutputRect.right = DestRect->right + Translate.x;
|
|
OutputRect.top = DestRect->top + Translate.y;
|
|
OutputRect.bottom = DestRect->bottom + Translate.y;
|
|
|
|
if (BrushOrigin)
|
|
{
|
|
AdjustedBrushOrigin.x = BrushOrigin->x + Translate.x;
|
|
AdjustedBrushOrigin.y = BrushOrigin->y + Translate.y;
|
|
}
|
|
else
|
|
AdjustedBrushOrigin = Translate;
|
|
|
|
// Determine clipping type
|
|
if (ClipRegion == (CLIPOBJ *) NULL)
|
|
{
|
|
clippingType = DC_TRIVIAL;
|
|
} else {
|
|
clippingType = ClipRegion->iDComplexity;
|
|
}
|
|
|
|
switch (clippingType)
|
|
{
|
|
case DC_TRIVIAL:
|
|
if (psoMask->iBitmapFormat == BMF_8BPP)
|
|
Ret = AlphaBltMask(psoOutput, NULL , psoInput, DestColorTranslation, SourceColorTranslation,
|
|
&OutputRect, NULL, &InputPoint, pbo, &AdjustedBrushOrigin);
|
|
else
|
|
Ret = BltMask(psoOutput, NULL, psoInput, DestColorTranslation,
|
|
&OutputRect, NULL, &InputPoint, pbo, &AdjustedBrushOrigin,
|
|
R4_MASK);
|
|
break;
|
|
case DC_RECT:
|
|
// Clip the blt to the clip rectangle
|
|
ClipRect.left = ClipRegion->rclBounds.left + Translate.x;
|
|
ClipRect.right = ClipRegion->rclBounds.right + Translate.x;
|
|
ClipRect.top = ClipRegion->rclBounds.top + Translate.y;
|
|
ClipRect.bottom = ClipRegion->rclBounds.bottom + Translate.y;
|
|
if (RECTL_bIntersectRect(&CombinedRect, &OutputRect, &ClipRect))
|
|
{
|
|
Pt.x = InputPoint.x + CombinedRect.left - OutputRect.left;
|
|
Pt.y = InputPoint.y + CombinedRect.top - OutputRect.top;
|
|
if (psoMask->iBitmapFormat == BMF_8BPP)
|
|
{
|
|
Ret = AlphaBltMask(psoOutput, NULL, psoInput, DestColorTranslation, SourceColorTranslation,
|
|
&CombinedRect, NULL, &Pt, pbo, &AdjustedBrushOrigin);
|
|
}
|
|
else
|
|
{
|
|
Ret = BltMask(psoOutput, NULL, psoInput, DestColorTranslation,
|
|
&CombinedRect, NULL, &Pt, pbo, &AdjustedBrushOrigin, R4_MASK);
|
|
}
|
|
}
|
|
break;
|
|
case DC_COMPLEX:
|
|
Ret = TRUE;
|
|
if (psoOutput == psoInput)
|
|
{
|
|
if (OutputRect.top < InputPoint.y)
|
|
{
|
|
Direction = OutputRect.left < InputPoint.x ? CD_RIGHTDOWN : CD_LEFTDOWN;
|
|
}
|
|
else
|
|
{
|
|
Direction = OutputRect.left < InputPoint.x ? CD_RIGHTUP : CD_LEFTUP;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Direction = CD_ANY;
|
|
}
|
|
CLIPOBJ_cEnumStart(ClipRegion, FALSE, CT_RECTANGLES, Direction, 0);
|
|
do
|
|
{
|
|
EnumMore = CLIPOBJ_bEnum(ClipRegion,(ULONG) sizeof(RectEnum), (PVOID) &RectEnum);
|
|
|
|
for (i = 0; i < RectEnum.c; i++)
|
|
{
|
|
ClipRect.left = RectEnum.arcl[i].left + Translate.x;
|
|
ClipRect.right = RectEnum.arcl[i].right + Translate.x;
|
|
ClipRect.top = RectEnum.arcl[i].top + Translate.y;
|
|
ClipRect.bottom = RectEnum.arcl[i].bottom + Translate.y;
|
|
if (RECTL_bIntersectRect(&CombinedRect, &OutputRect, &ClipRect))
|
|
{
|
|
Pt.x = InputPoint.x + CombinedRect.left - OutputRect.left;
|
|
Pt.y = InputPoint.y + CombinedRect.top - OutputRect.top;
|
|
if (psoMask->iBitmapFormat == BMF_8BPP)
|
|
{
|
|
Ret = AlphaBltMask(psoOutput, NULL, psoInput,
|
|
DestColorTranslation,
|
|
SourceColorTranslation,
|
|
&CombinedRect, NULL, &Pt, pbo,
|
|
&AdjustedBrushOrigin) && Ret;
|
|
}
|
|
else
|
|
{
|
|
Ret = BltMask(psoOutput, NULL, psoInput,
|
|
DestColorTranslation, &CombinedRect, NULL,
|
|
&Pt, pbo, &AdjustedBrushOrigin,
|
|
R4_MASK) && Ret;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (EnumMore);
|
|
break;
|
|
}
|
|
|
|
|
|
IntEngLeave(&EnterLeaveDest);
|
|
IntEngLeave(&EnterLeaveSource);
|
|
|
|
return Ret;
|
|
}
|
|
|
|
BOOL APIENTRY
|
|
IntEngMaskBlt(SURFOBJ *psoDest,
|
|
SURFOBJ *psoMask,
|
|
CLIPOBJ *ClipRegion,
|
|
XLATEOBJ *DestColorTranslation,
|
|
XLATEOBJ *SourceColorTranslation,
|
|
RECTL *DestRect,
|
|
POINTL *pptlMask,
|
|
BRUSHOBJ *pbo,
|
|
POINTL *BrushOrigin)
|
|
{
|
|
BOOLEAN ret;
|
|
RECTL OutputRect;
|
|
POINTL InputPoint;
|
|
SURFACE *psurfDest;
|
|
|
|
ASSERT(psoMask);
|
|
|
|
if (pptlMask)
|
|
{
|
|
InputPoint = *pptlMask;
|
|
}
|
|
|
|
/* Clip against the bounds of the clipping region so we won't try to write
|
|
* outside the surface */
|
|
if (NULL != ClipRegion)
|
|
{
|
|
if (!RECTL_bIntersectRect(&OutputRect, DestRect, &ClipRegion->rclBounds))
|
|
{
|
|
return TRUE;
|
|
}
|
|
InputPoint.x += OutputRect.left - DestRect->left;
|
|
InputPoint.y += OutputRect.top - DestRect->top;
|
|
}
|
|
else
|
|
{
|
|
OutputRect = *DestRect;
|
|
}
|
|
|
|
/* No success yet */
|
|
ret = FALSE;
|
|
ASSERT(psoDest);
|
|
psurfDest = CONTAINING_RECORD(psoDest, SURFACE, SurfObj);
|
|
|
|
/* Dummy BitBlt to let driver know that it should flush its changes.
|
|
This should really be done using a call to DrvSynchronizeSurface,
|
|
but the VMware driver doesn't hook that call. */
|
|
IntEngBitBlt(psoDest, NULL, psoMask, ClipRegion, DestColorTranslation,
|
|
DestRect, pptlMask, pptlMask, pbo, BrushOrigin,
|
|
R4_NOOP);
|
|
|
|
ret = EngMaskBitBlt(psoDest, psoMask, ClipRegion, DestColorTranslation, SourceColorTranslation,
|
|
&OutputRect, &InputPoint, pbo, BrushOrigin);
|
|
|
|
/* Dummy BitBlt to let driver know that something has changed. */
|
|
IntEngBitBlt(psoDest, NULL, psoMask, ClipRegion, DestColorTranslation,
|
|
DestRect, pptlMask, pptlMask, pbo, BrushOrigin,
|
|
R4_NOOP);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* EOF */
|