mirror of
https://github.com/reactos/reactos.git
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572 lines
18 KiB
C
572 lines
18 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS Win32k subsystem
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* PURPOSE: GDI stretch blt functions
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* FILE: win32ss/gdi/eng/stretchblt.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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typedef BOOLEAN (APIENTRY *PSTRETCHRECTFUNC)(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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RECTL* InputRect,
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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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CallDibStretchBlt(SURFOBJ* psoDest,
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SURFOBJ* psoSource,
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SURFOBJ* Mask,
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XLATEOBJ* ColorTranslation,
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RECTL* OutputRect,
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RECTL* InputRect,
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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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POINTL RealBrushOrigin;
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SURFOBJ* psoPattern;
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BOOL bResult;
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if (BrushOrigin == NULL)
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{
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RealBrushOrigin.x = RealBrushOrigin.y = 0;
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}
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else
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{
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RealBrushOrigin = *BrushOrigin;
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}
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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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psoPattern = BRUSHOBJ_psoPattern(pbo);
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if (!psoPattern) return FALSE;
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}
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else
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{
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psoPattern = NULL;
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}
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bResult = DibFunctionsForBitmapFormat[psoDest->iBitmapFormat].DIB_StretchBlt(
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psoDest, psoSource, Mask, psoPattern,
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OutputRect, InputRect, MaskOrigin, pbo, &RealBrushOrigin,
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ColorTranslation, Rop4);
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return bResult;
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}
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/*
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* @implemented
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*/
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BOOL
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APIENTRY
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EngStretchBltROP(
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IN SURFOBJ *psoDest,
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IN SURFOBJ *psoSource,
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IN SURFOBJ *Mask,
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IN CLIPOBJ *ClipRegion,
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IN XLATEOBJ *ColorTranslation,
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IN COLORADJUSTMENT *pca,
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IN POINTL *BrushOrigin,
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IN RECTL *prclDest,
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IN RECTL *prclSrc,
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IN POINTL *MaskOrigin,
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IN ULONG Mode,
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IN BRUSHOBJ *pbo,
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IN ROP4 Rop4)
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{
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RECTL InputRect;
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RECTL OutputRect;
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POINTL Translate;
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INTENG_ENTER_LEAVE EnterLeaveSource;
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INTENG_ENTER_LEAVE EnterLeaveDest;
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SURFOBJ* psoInput;
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SURFOBJ* psoOutput;
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PSTRETCHRECTFUNC BltRectFunc;
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BOOLEAN Ret = TRUE;
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POINTL AdjustedBrushOrigin;
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BOOL UsesSource = ROP4_USES_SOURCE(Rop4);
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BYTE clippingType;
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RECTL ClipRect;
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RECT_ENUM RectEnum;
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BOOL EnumMore;
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ULONG Direction;
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RECTL CombinedRect;
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RECTL InputToCombinedRect;
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unsigned i;
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LONG DstHeight;
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LONG DstWidth;
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LONG SrcHeight;
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LONG SrcWidth;
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if (Rop4 == ROP4_NOOP)
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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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/* 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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OutputRect = *prclDest;
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if (OutputRect.right < OutputRect.left)
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{
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OutputRect.left = prclDest->right;
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OutputRect.right = prclDest->left;
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}
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if (OutputRect.bottom < OutputRect.top)
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{
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OutputRect.top = prclDest->bottom;
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OutputRect.bottom = prclDest->top;
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}
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if (UsesSource)
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{
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if (NULL == prclSrc)
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{
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return FALSE;
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}
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InputRect = *prclSrc;
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if (! IntEngEnter(&EnterLeaveSource, psoSource, &InputRect, TRUE,
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&Translate, &psoInput))
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{
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return FALSE;
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}
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InputRect.left += Translate.x;
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InputRect.right += Translate.x;
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InputRect.top += Translate.y;
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InputRect.bottom += Translate.y;
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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 = OutputRect.right - OutputRect.left;
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InputRect.top = 0;
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InputRect.bottom = OutputRect.bottom - OutputRect.top;
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psoInput = NULL;
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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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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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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 there's
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nothing to do */
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if (OutputRect.right <= OutputRect.left || OutputRect.bottom <= OutputRect.top)
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{
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if (UsesSource)
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{
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IntEngLeave(&EnterLeaveSource);
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}
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return TRUE;
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}
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if (! IntEngEnter(&EnterLeaveDest, psoDest, &OutputRect, FALSE, &Translate, &psoOutput))
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{
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if (UsesSource)
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{
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IntEngLeave(&EnterLeaveSource);
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}
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return FALSE;
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}
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OutputRect.left += Translate.x;
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OutputRect.right += Translate.x;
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OutputRect.top += Translate.y;
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OutputRect.bottom += Translate.y;
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if (BrushOrigin)
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{
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AdjustedBrushOrigin.x = BrushOrigin->x + Translate.x;
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AdjustedBrushOrigin.y = BrushOrigin->y + Translate.y;
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}
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else
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{
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AdjustedBrushOrigin = Translate;
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}
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BltRectFunc = CallDibStretchBlt;
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DstHeight = OutputRect.bottom - OutputRect.top;
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DstWidth = OutputRect.right - OutputRect.left;
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SrcHeight = InputRect.bottom - InputRect.top;
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SrcWidth = InputRect.right - InputRect.left;
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switch (clippingType)
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{
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case DC_TRIVIAL:
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Ret = (*BltRectFunc)(psoOutput, psoInput, Mask,
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ColorTranslation, &OutputRect, &InputRect, MaskOrigin,
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pbo, &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 + Translate.x;
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ClipRect.right = ClipRegion->rclBounds.right + Translate.x;
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ClipRect.top = ClipRegion->rclBounds.top + Translate.y;
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ClipRect.bottom = ClipRegion->rclBounds.bottom + Translate.y;
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if (RECTL_bIntersectRect(&CombinedRect, &OutputRect, &ClipRect))
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{
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InputToCombinedRect.top = InputRect.top + (CombinedRect.top - OutputRect.top) * SrcHeight / DstHeight;
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InputToCombinedRect.bottom = InputRect.top + (CombinedRect.bottom - OutputRect.top) * SrcHeight / DstHeight;
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InputToCombinedRect.left = InputRect.left + (CombinedRect.left - OutputRect.left) * SrcWidth / DstWidth;
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InputToCombinedRect.right = InputRect.left + (CombinedRect.right - OutputRect.left) * SrcWidth / DstWidth;
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Ret = (*BltRectFunc)(psoOutput, psoInput, Mask,
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ColorTranslation,
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&CombinedRect,
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&InputToCombinedRect,
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MaskOrigin,
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pbo,
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&AdjustedBrushOrigin,
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Rop4);
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}
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break;
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case DC_COMPLEX:
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if (psoOutput == psoInput)
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{
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if (OutputRect.top < InputRect.top)
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{
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Direction = OutputRect.left < InputRect.left ?
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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 < InputRect.left ?
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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 + Translate.x;
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ClipRect.right = RectEnum.arcl[i].right + Translate.x;
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ClipRect.top = RectEnum.arcl[i].top + Translate.y;
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ClipRect.bottom = RectEnum.arcl[i].bottom + Translate.y;
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if (RECTL_bIntersectRect(&CombinedRect, &OutputRect, &ClipRect))
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{
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InputToCombinedRect.top = InputRect.top + (CombinedRect.top - OutputRect.top) * SrcHeight / DstHeight;
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InputToCombinedRect.bottom = InputRect.top + (CombinedRect.bottom - OutputRect.top) * SrcHeight / DstHeight;
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InputToCombinedRect.left = InputRect.left + (CombinedRect.left - OutputRect.left) * SrcWidth / DstWidth;
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InputToCombinedRect.right = InputRect.left + (CombinedRect.right - OutputRect.left) * SrcWidth / DstWidth;
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Ret = (*BltRectFunc)(psoOutput, psoInput, Mask,
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ColorTranslation,
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&CombinedRect,
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&InputToCombinedRect,
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MaskOrigin,
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pbo,
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&AdjustedBrushOrigin,
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Rop4);
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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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IntEngLeave(&EnterLeaveDest);
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if (UsesSource)
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{
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IntEngLeave(&EnterLeaveSource);
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}
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return Ret;
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}
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/*
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* @implemented
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*/
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BOOL
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APIENTRY
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EngStretchBlt(
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IN SURFOBJ *psoDest,
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IN SURFOBJ *psoSource,
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IN SURFOBJ *Mask,
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IN CLIPOBJ *ClipRegion,
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IN XLATEOBJ *ColorTranslation,
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IN COLORADJUSTMENT *pca,
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IN POINTL *BrushOrigin,
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IN RECTL *prclDest,
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IN RECTL *prclSrc,
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IN POINTL *MaskOrigin,
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IN ULONG Mode)
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{
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return EngStretchBltROP(
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psoDest,
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psoSource,
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Mask,
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ClipRegion,
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ColorTranslation,
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pca,
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BrushOrigin,
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prclDest,
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prclSrc,
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MaskOrigin,
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Mode,
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NULL,
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ROP4_FROM_INDEX(R3_OPINDEX_SRCCOPY));
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}
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BOOL APIENTRY
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IntEngStretchBlt(SURFOBJ *psoDest,
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SURFOBJ *psoSource,
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SURFOBJ *MaskSurf,
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CLIPOBJ *ClipRegion,
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XLATEOBJ *ColorTranslation,
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COLORADJUSTMENT *pca,
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RECTL *DestRect,
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RECTL *SourceRect,
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POINTL *pMaskOrigin,
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BRUSHOBJ *pbo,
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POINTL *BrushOrigin,
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DWORD Rop4)
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{
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BOOLEAN ret;
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POINTL MaskOrigin = {0, 0};
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SURFACE *psurfDest;
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//SURFACE *psurfSource = NULL;
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RECTL InputClippedRect;
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RECTL InputRect;
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RECTL OutputRect;
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BOOL UsesSource = ROP4_USES_SOURCE(Rop4);
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LONG InputClWidth, InputClHeight, InputWidth, InputHeight;
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ASSERT(psoDest);
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//ASSERT(psoSource); // FIXME!
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ASSERT(DestRect);
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ASSERT(SourceRect);
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//ASSERT(!RECTL_bIsEmptyRect(SourceRect)); // FIXME!
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/* If no clip object is given, use trivial one */
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if (!ClipRegion) ClipRegion = (CLIPOBJ *)&gxcoTrivial;
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psurfDest = CONTAINING_RECORD(psoDest, SURFACE, SurfObj);
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/* Sanity check */
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ASSERT(IS_VALID_ROP4(Rop4));
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/* Check if source and dest size are equal */
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if (((DestRect->right - DestRect->left) == (SourceRect->right - SourceRect->left)) &&
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((DestRect->bottom - DestRect->top) == (SourceRect->bottom - SourceRect->top)))
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{
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/* Pass the request to IntEngBitBlt */
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return IntEngBitBlt(psoDest,
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psoSource,
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MaskSurf,
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ClipRegion,
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ColorTranslation,
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DestRect,
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(PPOINTL)SourceRect,
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pMaskOrigin,
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pbo,
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BrushOrigin,
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Rop4);
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}
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InputClippedRect = *DestRect;
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if (InputClippedRect.right < InputClippedRect.left)
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{
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InputClippedRect.left = DestRect->right;
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InputClippedRect.right = DestRect->left;
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}
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if (InputClippedRect.bottom < InputClippedRect.top)
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{
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InputClippedRect.top = DestRect->bottom;
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InputClippedRect.bottom = DestRect->top;
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}
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if (NULL == psoSource)
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{
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return FALSE;
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}
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InputRect = *SourceRect;
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if (InputRect.right < InputRect.left ||
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InputRect.bottom < InputRect.top)
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{
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/* Everything clipped away, nothing to do */
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return TRUE;
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}
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if (ClipRegion->iDComplexity != DC_TRIVIAL)
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{
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if (!RECTL_bIntersectRect(&OutputRect, &InputClippedRect,
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&ClipRegion->rclBounds))
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{
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return TRUE;
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}
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/* Update source rect */
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InputClWidth = InputClippedRect.right - InputClippedRect.left;
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InputClHeight = InputClippedRect.bottom - InputClippedRect.top;
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InputWidth = InputRect.right - InputRect.left;
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InputHeight = InputRect.bottom - InputRect.top;
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InputRect.left += (InputWidth * (OutputRect.left - InputClippedRect.left)) / InputClWidth;
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InputRect.right -= (InputWidth * (InputClippedRect.right - OutputRect.right)) / InputClWidth;
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InputRect.top += (InputHeight * (OutputRect.top - InputClippedRect.top)) / InputClHeight;
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InputRect.bottom -= (InputHeight * (InputClippedRect.bottom - OutputRect.bottom)) / InputClHeight;
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}
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else
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{
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OutputRect = InputClippedRect;
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}
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if (pMaskOrigin != NULL)
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{
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MaskOrigin.x = pMaskOrigin->x;
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MaskOrigin.y = pMaskOrigin->y;
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}
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/* No success yet */
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ret = FALSE;
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if (UsesSource)
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{
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//psurfSource = CONTAINING_RECORD(psoSource, SURFACE, SurfObj);
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}
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/* Call the driver's DrvStretchBlt if available */
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if (psurfDest->flags & HOOK_STRETCHBLTROP)
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{
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/* Drv->StretchBltROP (look at http://www.osronline.com/ddkx/graphics/ddifncs_0z3b.htm ) */
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ret = GDIDEVFUNCS(psoDest).StretchBltROP(psoDest,
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psoSource,
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MaskSurf,
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ClipRegion,
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ColorTranslation,
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pca,
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BrushOrigin,
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&OutputRect,
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&InputRect,
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&MaskOrigin,
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COLORONCOLOR,
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pbo,
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Rop4);
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}
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if (! ret)
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{
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ret = EngStretchBltROP(psoDest,
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psoSource,
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MaskSurf,
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ClipRegion,
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ColorTranslation,
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pca,
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BrushOrigin,
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&OutputRect,
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&InputRect,
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&MaskOrigin,
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COLORONCOLOR,
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pbo,
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Rop4);
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}
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return ret;
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}
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BOOL
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APIENTRY
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NtGdiEngStretchBlt(
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IN SURFOBJ *psoDest,
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IN SURFOBJ *psoSource,
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IN SURFOBJ *Mask,
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IN CLIPOBJ *ClipRegion,
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IN XLATEOBJ *ColorTranslation,
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IN COLORADJUSTMENT *pca,
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IN POINTL *BrushOrigin,
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IN RECTL *prclDest,
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IN RECTL *prclSrc,
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IN POINTL *MaskOrigin,
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IN ULONG Mode)
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{
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COLORADJUSTMENT ca;
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POINTL lBrushOrigin;
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RECTL rclDest;
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RECTL rclSrc;
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POINTL lMaskOrigin;
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_SEH2_TRY
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{
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if (pca)
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{
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ProbeForRead(pca, sizeof(COLORADJUSTMENT), 1);
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RtlCopyMemory(&ca,pca, sizeof(COLORADJUSTMENT));
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pca = &ca;
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|
}
|
|
|
|
ProbeForRead(BrushOrigin, sizeof(POINTL), 1);
|
|
RtlCopyMemory(&lBrushOrigin, BrushOrigin, sizeof(POINTL));
|
|
|
|
ProbeForRead(prclDest, sizeof(RECTL), 1);
|
|
RtlCopyMemory(&rclDest, prclDest, sizeof(RECTL));
|
|
|
|
ProbeForRead(prclSrc, sizeof(RECTL), 1);
|
|
RtlCopyMemory(&rclSrc, prclSrc, sizeof(RECTL));
|
|
|
|
ProbeForRead(MaskOrigin, sizeof(POINTL), 1);
|
|
RtlCopyMemory(&lMaskOrigin, MaskOrigin, sizeof(POINTL));
|
|
|
|
}
|
|
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
_SEH2_YIELD(return FALSE);
|
|
}
|
|
_SEH2_END;
|
|
|
|
return EngStretchBlt(psoDest, psoSource, Mask, ClipRegion, ColorTranslation, pca, &lBrushOrigin, &rclDest, &rclSrc, &lMaskOrigin, Mode);
|
|
}
|
|
|
|
/* EOF */
|