mirror of
https://github.com/reactos/reactos.git
synced 2024-09-06 10:52:52 +00:00
191 lines
5.7 KiB
C
191 lines
5.7 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 EngCopyBits Function
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* FILE: win32ss/gdi/eng/copybits.c
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* PROGRAMER: Jason Filby
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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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/*
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* @implemented
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*/
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BOOL APIENTRY
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EngCopyBits(
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_In_ SURFOBJ *psoDest,
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_In_ SURFOBJ *psoSource,
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_In_opt_ CLIPOBJ *Clip,
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_In_opt_ XLATEOBJ *ColorTranslation,
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_In_ RECTL *DestRect,
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_In_ POINTL *SourcePoint)
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{
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BOOL ret;
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BYTE clippingType;
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RECT_ENUM RectEnum;
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BOOL EnumMore;
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BLTINFO BltInfo;
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SURFACE *psurfDest;
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SURFACE *psurfSource;
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RECTL rclDest = *DestRect;
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POINTL ptlSrc = *SourcePoint;
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ASSERT(psoDest != NULL && psoSource != NULL && DestRect != NULL && SourcePoint != NULL);
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psurfSource = CONTAINING_RECORD(psoSource, SURFACE, SurfObj);
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psurfDest = CONTAINING_RECORD(psoDest, SURFACE, SurfObj);
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/* Clip dest rect against source surface size / source point */
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if (psoSource->sizlBitmap.cx - ptlSrc.x < rclDest.right - rclDest.left)
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rclDest.right = rclDest.left + psoSource->sizlBitmap.cx - ptlSrc.x;
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if (psoSource->sizlBitmap.cy - ptlSrc.y < rclDest.bottom - rclDest.top)
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rclDest.bottom = rclDest.top + psoSource->sizlBitmap.cy - ptlSrc.y;
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/* Clip dest rect against target surface size */
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if (rclDest.right > psoDest->sizlBitmap.cx)
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rclDest.right = psoDest->sizlBitmap.cx;
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if (rclDest.bottom > psoDest->sizlBitmap.cy)
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rclDest.bottom = psoDest->sizlBitmap.cy;
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if (RECTL_bIsEmptyRect(&rclDest)) return TRUE;
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DestRect = &rclDest;
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// FIXME: Don't punt to the driver's DrvCopyBits immediately. Instead,
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// mark the copy block function to be DrvCopyBits instead of the
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// GDI's copy bit function so as to remove clipping from the
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// driver's responsibility
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// If one of the surfaces isn't managed by the GDI
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if ((psoDest->iType!=STYPE_BITMAP) || (psoSource->iType!=STYPE_BITMAP))
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{
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// Destination surface is device managed
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if (psoDest->iType!=STYPE_BITMAP)
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{
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/* FIXME: Eng* functions shouldn't call Drv* functions. ? */
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if (psurfDest->flags & HOOK_COPYBITS)
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{
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ret = GDIDEVFUNCS(psoDest).CopyBits(
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psoDest, psoSource, Clip, ColorTranslation, DestRect, SourcePoint);
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goto cleanup;
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}
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}
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// Source surface is device managed
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if (psoSource->iType!=STYPE_BITMAP)
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{
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/* FIXME: Eng* functions shouldn't call Drv* functions. ? */
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if (psurfSource->flags & HOOK_COPYBITS)
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{
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ret = GDIDEVFUNCS(psoSource).CopyBits(
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psoDest, psoSource, Clip, ColorTranslation, DestRect, SourcePoint);
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goto cleanup;
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}
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}
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// If CopyBits wasn't hooked, BitBlt must be
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ret = IntEngBitBlt(psoDest, psoSource,
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NULL, Clip, ColorTranslation, DestRect, SourcePoint,
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NULL, NULL, NULL, ROP4_FROM_INDEX(R3_OPINDEX_SRCCOPY));
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goto cleanup;
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}
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// Determine clipping type
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if (!Clip)
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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 = Clip->iDComplexity;
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}
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BltInfo.DestSurface = psoDest;
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BltInfo.SourceSurface = psoSource;
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BltInfo.PatternSurface = NULL;
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BltInfo.XlateSourceToDest = ColorTranslation;
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BltInfo.Rop4 = ROP4_FROM_INDEX(R3_OPINDEX_SRCCOPY);
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switch (clippingType)
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{
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case DC_TRIVIAL:
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BltInfo.DestRect = *DestRect;
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BltInfo.SourcePoint = *SourcePoint;
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ret = DibFunctionsForBitmapFormat[psoDest->iBitmapFormat].DIB_BitBltSrcCopy(&BltInfo);
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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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RECTL_bIntersectRect(&BltInfo.DestRect, DestRect, &Clip->rclBounds);
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BltInfo.SourcePoint.x = SourcePoint->x + BltInfo.DestRect.left - DestRect->left;
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BltInfo.SourcePoint.y = SourcePoint->y + BltInfo.DestRect.top - DestRect->top;
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ret = DibFunctionsForBitmapFormat[psoDest->iBitmapFormat].DIB_BitBltSrcCopy(&BltInfo);
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break;
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case DC_COMPLEX:
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CLIPOBJ_cEnumStart(Clip, FALSE, CT_RECTANGLES, CD_ANY, 0);
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do
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{
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EnumMore = CLIPOBJ_bEnum(Clip,(ULONG) sizeof(RectEnum), (PVOID) &RectEnum);
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if (RectEnum.c > 0)
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{
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RECTL* prclEnd = &RectEnum.arcl[RectEnum.c];
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RECTL* prcl = &RectEnum.arcl[0];
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do
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{
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RECTL_bIntersectRect(&BltInfo.DestRect, prcl, DestRect);
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BltInfo.SourcePoint.x = SourcePoint->x + BltInfo.DestRect.left - DestRect->left;
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BltInfo.SourcePoint.y = SourcePoint->y + BltInfo.DestRect.top - DestRect->top;
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if (!DibFunctionsForBitmapFormat[psoDest->iBitmapFormat].DIB_BitBltSrcCopy(&BltInfo))
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{
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ret = FALSE;
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goto cleanup;
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}
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prcl++;
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} while (prcl < prclEnd);
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}
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} while (EnumMore);
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ret = TRUE;
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break;
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default:
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ASSERT(FALSE);
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ret = FALSE;
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break;
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}
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cleanup:
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return ret;
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}
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BOOL APIENTRY
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IntEngCopyBits(
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SURFOBJ *psoDest,
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SURFOBJ *psoSource,
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CLIPOBJ *pco,
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XLATEOBJ *pxlo,
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RECTL *prclDest,
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POINTL *ptlSource)
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{
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return EngCopyBits(psoDest, psoSource, pco, pxlo, prclDest, ptlSource);
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}
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/* EOF */
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