bitblt.c File Reference

#include <win32k.h>
#include <debug.h>

Include dependency graph for bitblt.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
	DBG_DEFAULT_CHANNEL (GdiBlt)
BOOL APIENTRY	NtGdiAlphaBlend (HDC hDCDest, LONG XOriginDest, LONG YOriginDest, LONG WidthDest, LONG HeightDest, HDC hDCSrc, LONG XOriginSrc, LONG YOriginSrc, LONG WidthSrc, LONG HeightSrc, BLENDFUNCTION BlendFunc, HANDLE hcmXform)
BOOL APIENTRY	NtGdiBitBlt (HDC hDCDest, INT XDest, INT YDest, INT Width, INT Height, HDC hDCSrc, INT XSrc, INT YSrc, DWORD dwRop, IN DWORD crBackColor, IN FLONG fl)
BOOL APIENTRY	NtGdiTransparentBlt (HDC hdcDst, INT xDst, INT yDst, INT cxDst, INT cyDst, HDC hdcSrc, INT xSrc, INT ySrc, INT cxSrc, INT cySrc, COLORREF TransColor)
BOOL APIENTRY	NtGdiMaskBlt (HDC hdcDest, INT nXDest, INT nYDest, INT nWidth, INT nHeight, HDC hdcSrc, INT nXSrc, INT nYSrc, HBITMAP hbmMask, INT xMask, INT yMask, DWORD dwRop4, IN DWORD crBackColor)
BOOL APIENTRY	NtGdiPlgBlt (IN HDC hdcTrg, IN LPPOINT pptlTrg, IN HDC hdcSrc, IN INT xSrc, IN INT ySrc, IN INT cxSrc, IN INT cySrc, IN HBITMAP hbmMask, IN INT xMask, IN INT yMask, IN DWORD crBackColor)
BOOL NTAPI	GreStretchBltMask (HDC hDCDest, INT XOriginDest, INT YOriginDest, INT WidthDest, INT HeightDest, HDC hDCSrc, INT XOriginSrc, INT YOriginSrc, INT WidthSrc, INT HeightSrc, DWORD dwRop4, IN DWORD dwBackColor, HDC hDCMask, INT XOriginMask, INT YOriginMask)
BOOL APIENTRY	NtGdiStretchBlt (HDC hDCDest, INT XOriginDest, INT YOriginDest, INT WidthDest, INT HeightDest, HDC hDCSrc, INT XOriginSrc, INT YOriginSrc, INT WidthSrc, INT HeightSrc, DWORD dwRop3, IN DWORD dwBackColor)
BOOL FASTCALL	IntPatBlt (PDC pdc, INT XLeft, INT YLeft, INT Width, INT Height, DWORD dwRop3, PEBRUSHOBJ pebo)
BOOL FASTCALL	IntGdiPolyPatBlt (HDC hDC, DWORD dwRop, PPATRECT pRects, INT cRects, ULONG Reserved)
BOOL APIENTRY	NtGdiPatBlt (_In_ HDC hdcDest, _In_ INT x, _In_ INT y, _In_ INT cx, _In_ INT cy, _In_ DWORD dwRop)
BOOL APIENTRY	NtGdiPolyPatBlt (HDC hDC, DWORD dwRop, IN PPOLYPATBLT pRects, IN DWORD cRects, IN DWORD Mode)
static BOOL FASTCALL	REGION_LPTODP (_In_ PDC pdc, _Inout_ PREGION prgnDest, _In_ PREGION prgnSrc)
BOOL APIENTRY	IntGdiBitBltRgn (_In_ PDC pdc, _In_ PREGION prgn, _In_opt_ BRUSHOBJ *pbo, _In_opt_ POINTL *pptlBrush, _In_ ROP4 rop4)
BOOL	IntGdiFillRgn (_In_ PDC pdc, _In_ PREGION prgn, _In_opt_ PBRUSH pbrFill)
BOOL FASTCALL	IntGdiPaintRgn (_In_ PDC pdc, _In_ PREGION prgn)
BOOL APIENTRY	NtGdiFillRgn (_In_ HDC hdc, _In_ HRGN hrgn, _In_ HBRUSH hbrush)
BOOL APIENTRY	NtGdiFrameRgn (_In_ HDC hdc, _In_ HRGN hrgn, _In_ HBRUSH hbrush, _In_ INT xWidth, _In_ INT yHeight)
BOOL APIENTRY	NtGdiInvertRgn (_In_ HDC hdc, _In_ HRGN hrgn)
COLORREF APIENTRY	NtGdiSetPixel (_In_ HDC hdc, _In_ INT x, _In_ INT y, _In_ COLORREF crColor)
COLORREF APIENTRY	NtGdiGetPixel (_In_ HDC hdc, _In_ INT x, _In_ INT y)

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 10 of file bitblt.c.

Function Documentation

DBG_DEFAULT_CHANNEL()

DBG_DEFAULT_CHANNEL

(

GdiBlt

)

GreStretchBltMask()

BOOL NTAPI GreStretchBltMask	(	HDC	hDCDest,
		INT	XOriginDest,
		INT	YOriginDest,
		INT	WidthDest,
		INT	HeightDest,
		HDC	hDCSrc,
		INT	XOriginSrc,
		INT	YOriginSrc,
		INT	WidthSrc,
		INT	HeightSrc,
		DWORD	dwRop4,
		IN DWORD	dwBackColor,
		HDC	hDCMask,
		INT	XOriginMask,
		INT	YOriginMask
	)

Definition at line 560 of file bitblt.c.

{
    PDC DCDest;
    PDC DCSrc  = NULL;
    PDC DCMask = NULL;
    HDC ahDC[3];
    PGDIOBJ apObj[3];
    PDC_ATTR pdcattr;
    SURFACE *BitmapDest, *BitmapSrc = NULL;
    SURFACE *BitmapMask = NULL;
    RECTL DestRect;
    RECTL SourceRect;
    POINTL MaskPoint;
    BOOL Status = FALSE;
    EXLATEOBJ exlo;
    XLATEOBJ *XlateObj = NULL;
    POINTL BrushOrigin;
    BOOL UsesSource;
    BOOL UsesMask;
    ROP4 rop4;
    BOOL Case0000, Case0101, Case1010, CaseExcept;
 
    rop4 = WIN32_ROP4_TO_ENG_ROP4(dwRop4);
 
    UsesSource = ROP4_USES_SOURCE(rop4);
    UsesMask = ROP4_USES_MASK(rop4);
 
    if (0 == WidthDest || 0 == HeightDest || 0 == WidthSrc || 0 == HeightSrc)
    {
        EngSetLastError(ERROR_INVALID_PARAMETER);
        return TRUE;
    }
 
    if (!hDCDest || (UsesSource && !hDCSrc) || (UsesMask && !hDCMask))
    {
        EngSetLastError(ERROR_INVALID_PARAMETER);
        return FALSE;
    }
 
    ahDC[0] = hDCDest;
    ahDC[1] = UsesSource ? hDCSrc : NULL;
    ahDC[2] = UsesMask ? hDCMask : NULL;
    if (!GDIOBJ_bLockMultipleObjects(3, (HGDIOBJ*)ahDC, apObj, GDIObjType_DC_TYPE))
    {
        WARN("Invalid dc handle (dest=0x%p, src=0x%p) passed to GreStretchBltMask\n", hDCDest, hDCSrc);
        EngSetLastError(ERROR_INVALID_HANDLE);
        return FALSE;
    }
    DCDest = apObj[0];
    DCSrc = apObj[1];
    DCMask = apObj[2];
 
    if (DCDest->dctype == DCTYPE_INFO)
    {
        if(DCSrc) GDIOBJ_vUnlockObject(&DCSrc->BaseObject);
        if(DCMask) GDIOBJ_vUnlockObject(&DCMask->BaseObject);
        GDIOBJ_vUnlockObject(&DCDest->BaseObject);
        /* Yes, Windows really returns TRUE in this case */
        return TRUE;
    }
 
    if (UsesSource)
    {
        if (DCSrc->dctype == DCTYPE_INFO)
        {
            GDIOBJ_vUnlockObject(&DCDest->BaseObject);
            GDIOBJ_vUnlockObject(&DCSrc->BaseObject);
            if(DCMask) GDIOBJ_vUnlockObject(&DCMask->BaseObject);
            /* Yes, Windows really returns TRUE in this case */
            return TRUE;
        }
    }
 
 
    Case0000 = ((WidthDest < 0) && (HeightDest < 0) && (WidthSrc < 0) && (HeightSrc < 0));
    Case0101 = ((WidthDest < 0) && (HeightDest > 0) && (WidthSrc < 0) && (HeightSrc > 0));
    Case1010 = ((WidthDest > 0) && (HeightDest < 0) && (WidthSrc > 0) && (HeightSrc < 0));
    CaseExcept = (Case0000 || Case0101 || Case1010);
 
    pdcattr = DCDest->pdcattr;
 
    DestRect.left   = XOriginDest;
    DestRect.top    = YOriginDest;
    DestRect.right  = XOriginDest+WidthDest;
    DestRect.bottom = YOriginDest+HeightDest;
 
    /* Account for possible negative span values */
    if ((WidthDest < 0) && !CaseExcept)
    {
        DestRect.left++;
        DestRect.right++;
    }
    if ((HeightDest < 0) && !CaseExcept)
    {
        DestRect.top++;
        DestRect.bottom++;
    }
 
    IntLPtoDP(DCDest, (LPPOINT)&DestRect, 2);
 
    DestRect.left   += DCDest->ptlDCOrig.x;
    DestRect.top    += DCDest->ptlDCOrig.y;
    DestRect.right  += DCDest->ptlDCOrig.x;
    DestRect.bottom += DCDest->ptlDCOrig.y;
 
    if (DCDest->fs & (DC_ACCUM_APP|DC_ACCUM_WMGR))
    {
       IntUpdateBoundsRect(DCDest, &DestRect);
    }
 
    SourceRect.left   = XOriginSrc;
    SourceRect.top    = YOriginSrc;
    SourceRect.right  = XOriginSrc+WidthSrc;
    SourceRect.bottom = YOriginSrc+HeightSrc;
 
    /* Account for possible negative span values */
    if ((WidthSrc < 0) && !CaseExcept)
    {
        SourceRect.left++;
        SourceRect.right++;
    }
    if ((HeightSrc < 0) && !CaseExcept)
    {
        SourceRect.top++;
        SourceRect.bottom++;
    }
 
    if (UsesSource)
    {
        IntLPtoDP(DCSrc, (LPPOINT)&SourceRect, 2);
 
        SourceRect.left   += DCSrc->ptlDCOrig.x;
        SourceRect.top    += DCSrc->ptlDCOrig.y;
        SourceRect.right  += DCSrc->ptlDCOrig.x;
        SourceRect.bottom += DCSrc->ptlDCOrig.y;
    }
 
    BrushOrigin.x = 0;
    BrushOrigin.y = 0;
 
    /* Only prepare Source and Dest, hdcMask represents a DIB */
    DC_vPrepareDCsForBlit(DCDest, &DestRect, DCSrc, &SourceRect);
 
    if (pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
        DC_vUpdateFillBrush(DCDest);
 
    /* Determine surfaces to be used in the bitblt */
    BitmapDest = DCDest->dclevel.pSurface;
    if (BitmapDest == NULL)
        goto failed;
    if (UsesSource)
    {
        BitmapSrc = DCSrc->dclevel.pSurface;
        if (BitmapSrc == NULL)
            goto failed;
 
        /* Create the XLATEOBJ. */
        EXLATEOBJ_vInitXlateFromDCs(&exlo, DCSrc, DCDest);
        XlateObj = &exlo.xlo;
    }
 
    /* Offset the brush */
    BrushOrigin.x += DCDest->ptlDCOrig.x;
    BrushOrigin.y += DCDest->ptlDCOrig.y;
 
    /* Make mask surface for source surface */
    if (BitmapSrc && DCMask)
    {
        BitmapMask = DCMask->dclevel.pSurface;
        if (BitmapMask &&
            (BitmapMask->SurfObj.sizlBitmap.cx < WidthSrc ||
             BitmapMask->SurfObj.sizlBitmap.cy < HeightSrc))
        {
            WARN("%dx%d mask is smaller than %dx%d bitmap\n",
                    BitmapMask->SurfObj.sizlBitmap.cx, BitmapMask->SurfObj.sizlBitmap.cy,
                    WidthSrc, HeightSrc);
            EXLATEOBJ_vCleanup(&exlo);
            goto failed;
        }
        /* Create mask offset point */
        MaskPoint.x = XOriginMask;
        MaskPoint.y = YOriginMask;
        IntLPtoDP(DCMask, &MaskPoint, 1);
        MaskPoint.x += DCMask->ptlDCOrig.x;
        MaskPoint.y += DCMask->ptlDCOrig.y;
    }
 
    DPRINT("Calling IntEngStrethBlt SourceRect: (%d,%d)-(%d,%d) and DestRect: (%d,%d)-(%d,%d).\n",
           SourceRect.left, SourceRect.top, SourceRect.right, SourceRect.bottom,
           DestRect.left, DestRect.top, DestRect.right, DestRect.bottom);
 
    /* Perform the bitblt operation */
    Status = IntEngStretchBlt(&BitmapDest->SurfObj,
                              BitmapSrc ? &BitmapSrc->SurfObj : NULL,
                              BitmapMask ? &BitmapMask->SurfObj : NULL,
                              (CLIPOBJ *)&DCDest->co,
                              XlateObj,
                              &DCDest->dclevel.ca,
                              &DestRect,
                              &SourceRect,
                              BitmapMask ? &MaskPoint : NULL,
                              &DCDest->eboFill.BrushObject,
                              &BrushOrigin,
                              rop4);
    if (UsesSource)
    {
        EXLATEOBJ_vCleanup(&exlo);
    }
 
failed:
    DC_vFinishBlit(DCDest, DCSrc);
    if (UsesSource)
    {
        DC_UnlockDc(DCSrc);
    }
    if (DCMask)
    {
        DC_UnlockDc(DCMask);
    }
    DC_UnlockDc(DCDest);
 
    return Status;
}

Referenced by NtGdiStretchBlt().

IntGdiBitBltRgn()

BOOL APIENTRY IntGdiBitBltRgn	(	_In_ PDC	pdc,
		_In_ PREGION	prgn,
		_In_opt_ BRUSHOBJ *	pbo,
		_In_opt_ POINTL *	pptlBrush,
		_In_ ROP4	rop4
	)

Definition at line 1101 of file bitblt.c.

{
    PREGION prgnClip;
    XCLIPOBJ xcoClip;
    BOOL bResult;
    NT_ASSERT((pdc != NULL) && (prgn != NULL));
 
    /* Check if we have a surface */
    if (pdc->dclevel.pSurface == NULL)
    {
        return TRUE;
    }
 
    /* Create an empty clip region */
    prgnClip = IntSysCreateRectpRgn(0, 0, 0, 0);
    if (prgnClip == NULL)
    {
        return FALSE;
    }
 
    /* Transform given region into device coordinates */
    if (!REGION_LPTODP(pdc, prgnClip, prgn))
    {
        REGION_Delete(prgnClip);
        return FALSE;
    }
 
    /* Intersect with the system or RAO region (these are (atm) without DC-origin) */
    if (pdc->prgnRao)
        IntGdiCombineRgn(prgnClip, prgnClip, pdc->prgnRao, RGN_AND);
    else
        IntGdiCombineRgn(prgnClip, prgnClip, pdc->prgnVis, RGN_AND);
 
    /* Now account for the DC-origin */
    if (!REGION_bOffsetRgn(prgnClip, pdc->ptlDCOrig.x, pdc->ptlDCOrig.y))
    {
        REGION_Delete(prgnClip);
        return FALSE;
    }
 
    if (pdc->fs & (DC_ACCUM_APP|DC_ACCUM_WMGR))
    {
        RECTL rcrgn;
        REGION_GetRgnBox(prgnClip, &rcrgn);
        IntUpdateBoundsRect(pdc, &rcrgn);
    }
 
    /* Prepare the DC */
    DC_vPrepareDCsForBlit(pdc, &prgnClip->rdh.rcBound, NULL, NULL);
 
    /* Initialize a clip object */
    IntEngInitClipObj(&xcoClip);
    IntEngUpdateClipRegion(&xcoClip,
                           prgnClip->rdh.nCount,
                           prgnClip->Buffer,
                           &prgnClip->rdh.rcBound);
 
    /* Call the Eng or Drv function */
    bResult = IntEngBitBlt(&pdc->dclevel.pSurface->SurfObj,
                           NULL,
                           NULL,
                           (CLIPOBJ *)&xcoClip,
                           NULL,
                           &prgnClip->rdh.rcBound,
                           NULL,
                           NULL,
                           pbo,
                           pptlBrush,
                           rop4);
 
    /* Cleanup */
    DC_vFinishBlit(pdc, NULL);
    REGION_Delete(prgnClip);
    IntEngFreeClipResources(&xcoClip);
 
    /* Return the result */
    return bResult;
}

Referenced by NtGdiInvertRgn().

IntGdiFillRgn()

BOOL IntGdiFillRgn	(	_In_ PDC	pdc,
		_In_ PREGION	prgn,
		_In_opt_ PBRUSH	pbrFill
	)

Todo:

Check parameters

Definition at line 1186 of file bitblt.c.

{
    PREGION prgnClip;
    XCLIPOBJ xcoClip;
    EBRUSHOBJ eboFill;
    BRUSHOBJ *pbo;
    BOOL bRet;
    DWORD rop2Fg;
    MIX mix;
    NT_ASSERT((pdc != NULL) && (prgn != NULL));
 
    if (pdc->dclevel.pSurface == NULL)
    {
        return TRUE;
    }
 
    prgnClip = IntSysCreateRectpRgn(0, 0, 0, 0);
    if (prgnClip == NULL)
    {
        return FALSE;
    }
 
    /* Transform region into device coordinates */
    if (!REGION_LPTODP(pdc, prgnClip, prgn))
    {
        REGION_Delete(prgnClip);
        return FALSE;
    }
 
    /* Intersect with the system or RAO region (these are (atm) without DC-origin) */
    if (pdc->prgnRao)
        IntGdiCombineRgn(prgnClip, prgnClip, pdc->prgnRao, RGN_AND);
    else
        IntGdiCombineRgn(prgnClip, prgnClip, pdc->prgnVis, RGN_AND);
 
    /* Now account for the DC-origin */
    if (!REGION_bOffsetRgn(prgnClip, pdc->ptlDCOrig.x, pdc->ptlDCOrig.y))
    {
        REGION_Delete(prgnClip);
        return FALSE;
    }
 
    if (pdc->fs & (DC_ACCUM_APP|DC_ACCUM_WMGR))
    {
        RECTL rcrgn;
        REGION_GetRgnBox(prgnClip, &rcrgn);
        IntUpdateBoundsRect(pdc, &rcrgn);
    }
 
    IntEngInitClipObj(&xcoClip);
    IntEngUpdateClipRegion(&xcoClip,
                           prgnClip->rdh.nCount,
                           prgnClip->Buffer,
                           &prgnClip->rdh.rcBound );
 
    /* Get the FG rop and create a MIX based on the BK mode */
    rop2Fg = FIXUP_ROP2(pdc->pdcattr->jROP2);
    mix = rop2Fg | (pdc->pdcattr->jBkMode == OPAQUE ? rop2Fg : R2_NOP) << 8;
 
    /* Prepare DC for blit */
    DC_vPrepareDCsForBlit(pdc, &prgnClip->rdh.rcBound, NULL, NULL);
 
    /* Check if we have a fill brush */
    if (pbrFill != NULL)
    {
        /* Initialize the brush object */
        EBRUSHOBJ_vInit(&eboFill, pbrFill, pdc->dclevel.pSurface, 0x00FFFFFF, 0, NULL);
        pbo = &eboFill.BrushObject;
    }
    else
    {
        /* Update the fill brush if needed */
        if (pdc->pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
            DC_vUpdateFillBrush(pdc);
 
        /* Use the DC brush object */
        pbo = &pdc->eboFill.BrushObject;
    }
 
    /* Call the internal function */
    bRet = IntEngPaint(&pdc->dclevel.pSurface->SurfObj,
                       (CLIPOBJ *)&xcoClip,
                       pbo,
                       &pdc->pdcattr->ptlBrushOrigin,
                       mix);
 
    DC_vFinishBlit(pdc, NULL);
    REGION_Delete(prgnClip);
    IntEngFreeClipResources(&xcoClip);
 
    // Fill the region
    return bRet;
}

Referenced by IntGdiPaintRgn(), NtGdiFillRgn(), and PATH_FillPathEx().

IntGdiPaintRgn()

BOOL FASTCALL IntGdiPaintRgn	(	_In_ PDC	pdc,
		_In_ PREGION	prgn
	)

Definition at line 1286 of file bitblt.c.

{
    return IntGdiFillRgn(pdc, prgn, NULL);
}

IntGdiPolyPatBlt()

BOOL FASTCALL IntGdiPolyPatBlt	(	HDC	hDC,
		DWORD	dwRop,
		PPATRECT	pRects,
		INT	cRects,
		ULONG	Reserved
	)

Definition at line 925 of file bitblt.c.

{
    INT i;
    PBRUSH pbrush;
    PDC pdc;
    EBRUSHOBJ eboFill;
 
    pdc = DC_LockDc(hDC);
    if (!pdc)
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return FALSE;
    }
 
    if (pdc->dctype == DCTYPE_INFO)
    {
        DC_UnlockDc(pdc);
        /* Yes, Windows really returns TRUE in this case */
        return TRUE;
    }
 
    for (i = 0; i < cRects; i++)
    {
        pbrush = BRUSH_ShareLockBrush(pRects->hBrush);
 
        /* Check if we could lock the brush */
        if (pbrush != NULL)
        {
            /* Initialize a brush object */
            EBRUSHOBJ_vInitFromDC(&eboFill, pbrush, pdc);
 
            IntPatBlt(
                pdc,
                pRects->r.left,
                pRects->r.top,
                pRects->r.right,
                pRects->r.bottom,
                dwRop,
                &eboFill);
 
            /* Cleanup the brush object and unlock the brush */
            EBRUSHOBJ_vCleanup(&eboFill);
            BRUSH_ShareUnlockBrush(pbrush);
        }
        pRects++;
    }
 
    DC_UnlockDc(pdc);
 
    return TRUE;
}

Referenced by NtGdiPolyPatBlt().

IntPatBlt()

BOOL FASTCALL IntPatBlt	(	PDC	pdc,
		INT	XLeft,
		INT	YLeft,
		INT	Width,
		INT	Height,
		DWORD	dwRop3,
		PEBRUSHOBJ	pebo
	)

Definition at line 837 of file bitblt.c.

{
    RECTL DestRect;
    SURFACE *psurf;
    POINTL BrushOrigin;
    BOOL ret;
    PBRUSH pbrush;
 
    ASSERT(pebo);
    pbrush = pebo->pbrush;
    ASSERT(pbrush);
 
    if (pbrush->flAttrs & BR_IS_NULL)
    {
        return TRUE;
    }
 
    if (Width >= 0)
    {
        DestRect.left = XLeft;
        DestRect.right = XLeft + Width;
    }
    else
    {
        DestRect.left = XLeft + Width;
        DestRect.right = XLeft;
    }
 
    if (Height >= 0)
    {
        DestRect.top = YLeft;
        DestRect.bottom = YLeft + Height;
    }
    else
    {
        DestRect.top = YLeft + Height;
        DestRect.bottom = YLeft;
    }
 
    IntLPtoDP(pdc, (LPPOINT)&DestRect, 2);
 
    DestRect.left   += pdc->ptlDCOrig.x;
    DestRect.top    += pdc->ptlDCOrig.y;
    DestRect.right  += pdc->ptlDCOrig.x;
    DestRect.bottom += pdc->ptlDCOrig.y;
 
    if (pdc->fs & (DC_ACCUM_APP|DC_ACCUM_WMGR))
    {
       IntUpdateBoundsRect(pdc, &DestRect);
    }
 
#ifdef _USE_DIBLIB_
    BrushOrigin.x = pbrush->ptOrigin.x + pdc->ptlDCOrig.x + XLeft;
    BrushOrigin.y = pbrush->ptOrigin.y + pdc->ptlDCOrig.y + YLeft;
#else
    BrushOrigin.x = pbrush->ptOrigin.x + pdc->ptlDCOrig.x;
    BrushOrigin.y = pbrush->ptOrigin.y + pdc->ptlDCOrig.y;
#endif
 
    DC_vPrepareDCsForBlit(pdc, &DestRect, NULL, NULL);
 
    psurf = pdc->dclevel.pSurface;
 
    ret = IntEngBitBlt(&psurf->SurfObj,
                       NULL,
                       NULL,
                       (CLIPOBJ *)&pdc->co,
                       NULL,
                       &DestRect,
                       NULL,
                       NULL,
                       &pebo->BrushObject,
                       &BrushOrigin,
                       WIN32_ROP3_TO_ENG_ROP4(dwRop3));
 
    DC_vFinishBlit(pdc, NULL);
 
    return ret;
}

Referenced by GdiFlushUserBatch(), IntGdiPolyPatBlt(), NtGdiPatBlt(), and NtGdiSetPixel().

NtGdiAlphaBlend()

BOOL APIENTRY NtGdiAlphaBlend	(	HDC	hDCDest,
		LONG	XOriginDest,
		LONG	YOriginDest,
		LONG	WidthDest,
		LONG	HeightDest,
		HDC	hDCSrc,
		LONG	XOriginSrc,
		LONG	YOriginSrc,
		LONG	WidthSrc,
		LONG	HeightSrc,
		BLENDFUNCTION	BlendFunc,
		HANDLE	hcmXform
	)

Definition at line 15 of file bitblt.c.

{
    PDC DCDest;
    PDC DCSrc;
    HDC ahDC[2];
    PGDIOBJ apObj[2];
    SURFACE *BitmapDest, *BitmapSrc;
    RECTL DestRect, SourceRect;
    BOOL bResult;
    EXLATEOBJ exlo;
    BLENDOBJ BlendObj;
    BlendObj.BlendFunction = BlendFunc;
 
    if (WidthDest < 0 || HeightDest < 0 || WidthSrc < 0 || HeightSrc < 0)
    {
        EngSetLastError(ERROR_INVALID_PARAMETER);
        return FALSE;
    }
 
    if ((hDCDest == NULL) || (hDCSrc == NULL))
    {
        EngSetLastError(ERROR_INVALID_PARAMETER);
        return FALSE;
    }
 
    TRACE("Locking DCs\n");
    ahDC[0] = hDCDest;
    ahDC[1] = hDCSrc ;
    if (!GDIOBJ_bLockMultipleObjects(2, (HGDIOBJ*)ahDC, apObj, GDIObjType_DC_TYPE))
    {
        WARN("Invalid dc handle (dest=0x%p, src=0x%p) passed to NtGdiAlphaBlend\n", hDCDest, hDCSrc);
        EngSetLastError(ERROR_INVALID_HANDLE);
        return FALSE;
    }
    DCDest = apObj[0];
    DCSrc = apObj[1];
 
    if (DCDest->dctype == DCTYPE_INFO || DCDest->dctype == DCTYPE_INFO)
    {
        GDIOBJ_vUnlockObject(&DCSrc->BaseObject);
        GDIOBJ_vUnlockObject(&DCDest->BaseObject);
        /* Yes, Windows really returns TRUE in this case */
        return TRUE;
    }
 
    DestRect.left   = XOriginDest;
    DestRect.top    = YOriginDest;
    DestRect.right  = XOriginDest + WidthDest;
    DestRect.bottom = YOriginDest + HeightDest;
    IntLPtoDP(DCDest, (LPPOINT)&DestRect, 2);
 
    DestRect.left   += DCDest->ptlDCOrig.x;
    DestRect.top    += DCDest->ptlDCOrig.y;
    DestRect.right  += DCDest->ptlDCOrig.x;
    DestRect.bottom += DCDest->ptlDCOrig.y;
 
    if (DCDest->fs & (DC_ACCUM_APP|DC_ACCUM_WMGR))
    {
       IntUpdateBoundsRect(DCDest, &DestRect);
    }
 
    SourceRect.left   = XOriginSrc;
    SourceRect.top    = YOriginSrc;
    SourceRect.right  = XOriginSrc + WidthSrc;
    SourceRect.bottom = YOriginSrc + HeightSrc;
    IntLPtoDP(DCSrc, (LPPOINT)&SourceRect, 2);
 
    SourceRect.left   += DCSrc->ptlDCOrig.x;
    SourceRect.top    += DCSrc->ptlDCOrig.y;
    SourceRect.right  += DCSrc->ptlDCOrig.x;
    SourceRect.bottom += DCSrc->ptlDCOrig.y;
 
    if (!DestRect.right ||
        !DestRect.bottom ||
        !SourceRect.right ||
        !SourceRect.bottom)
    {
        GDIOBJ_vUnlockObject(&DCSrc->BaseObject);
        GDIOBJ_vUnlockObject(&DCDest->BaseObject);
        return TRUE;
    }
 
    /* Prepare DCs for blit */
    TRACE("Preparing DCs for blit\n");
    DC_vPrepareDCsForBlit(DCDest, &DestRect, DCSrc, &SourceRect);
 
    /* Determine surfaces to be used in the bitblt */
    BitmapDest = DCDest->dclevel.pSurface;
    if (!BitmapDest)
    {
        bResult = FALSE ;
        goto leave ;
    }
 
    BitmapSrc = DCSrc->dclevel.pSurface;
    if (!BitmapSrc)
    {
        bResult = FALSE;
        goto leave;
    }
 
    /* Create the XLATEOBJ. */
    EXLATEOBJ_vInitXlateFromDCs(&exlo, DCSrc, DCDest);
 
    /* Perform the alpha blend operation */
    TRACE("Performing the alpha blend\n");
    bResult = IntEngAlphaBlend(&BitmapDest->SurfObj,
                               &BitmapSrc->SurfObj,
                               (CLIPOBJ *)&DCDest->co,
                               &exlo.xlo,
                               &DestRect,
                               &SourceRect,
                               &BlendObj);
 
    EXLATEOBJ_vCleanup(&exlo);
leave :
    TRACE("Finishing blit\n");
    DC_vFinishBlit(DCDest, DCSrc);
    GDIOBJ_vUnlockObject(&DCSrc->BaseObject);
    GDIOBJ_vUnlockObject(&DCDest->BaseObject);
 
    return bResult;
}

NtGdiBitBlt()

BOOL APIENTRY NtGdiBitBlt	(	HDC	hDCDest,
		INT	XDest,
		INT	YDest,
		INT	Width,
		INT	Height,
		HDC	hDCSrc,
		INT	XSrc,
		INT	YSrc,
		DWORD	dwRop,
		IN DWORD	crBackColor,
		IN FLONG	fl
	)

Definition at line 152 of file bitblt.c.

{
 
    if (dwRop & CAPTUREBLT)
    {
       return NtGdiStretchBlt(hDCDest,
                              XDest,
                              YDest,
                              Width,
                              Height,
                              hDCSrc,
                              XSrc,
                              YSrc,
                              Width,
                              Height,
                              dwRop,
                              crBackColor);
    }
 
    dwRop = dwRop & ~(NOMIRRORBITMAP|CAPTUREBLT);
 
    /* Forward to NtGdiMaskBlt */
    // TODO: What's fl for? LOL not to send this to MaskBit!
    return NtGdiMaskBlt(hDCDest,
                        XDest,
                        YDest,
                        Width,
                        Height,
                        hDCSrc,
                        XSrc,
                        YSrc,
                        NULL,
                        0,
                        0,
                        MAKEROP4(dwRop, dwRop),
                        crBackColor);
}

NtGdiFillRgn()

BOOL APIENTRY NtGdiFillRgn	(	_In_ HDC	hdc,
		_In_ HRGN	hrgn,
		_In_ HBRUSH	hbrush
	)

Definition at line 1295 of file bitblt.c.

{
    PDC pdc;
    PREGION prgn;
    PBRUSH pbrFill;
    BOOL bResult;
 
    /* Lock the DC */
    pdc = DC_LockDc(hdc);
    if (pdc == NULL)
    {
        ERR("Failed to lock hdc %p\n", hdc);
        return FALSE;
    }
 
    /* Check if the DC has no surface (empty mem or info DC) */
    if (pdc->dclevel.pSurface == NULL)
    {
        DC_UnlockDc(pdc);
        return TRUE;
    }
 
    /* Lock the region */
    prgn = REGION_LockRgn(hrgn);
    if (prgn == NULL)
    {
        ERR("Failed to lock hrgn %p\n", hrgn);
        DC_UnlockDc(pdc);
        return FALSE;
    }
 
    /* Lock the brush */
    pbrFill = BRUSH_ShareLockBrush(hbrush);
    if (pbrFill == NULL)
    {
        ERR("Failed to lock hbrush %p\n", hbrush);
        REGION_UnlockRgn(prgn);
        DC_UnlockDc(pdc);
        return FALSE;
    }
 
    /* Call the internal function */
    bResult = IntGdiFillRgn(pdc, prgn, pbrFill);
 
    /* Cleanup locks */
    BRUSH_ShareUnlockBrush(pbrFill);
    REGION_UnlockRgn(prgn);
    DC_UnlockDc(pdc);
 
    return bResult;
}

Referenced by FillRgn(), and NtGdiFrameRgn().

NtGdiFrameRgn()

BOOL APIENTRY NtGdiFrameRgn	(	_In_ HDC	hdc,
		_In_ HRGN	hrgn,
		_In_ HBRUSH	hbrush,
		_In_ INT	xWidth,
		_In_ INT	yHeight
	)

Definition at line 1352 of file bitblt.c.

{
    HRGN hrgnFrame;
    BOOL bResult;
 
    hrgnFrame = GreCreateFrameRgn(hrgn, xWidth, yHeight);
    if (hrgnFrame == NULL)
    {
        return FALSE;
    }
 
    bResult = NtGdiFillRgn(hdc, hrgnFrame, hbrush);
 
    GreDeleteObject(hrgnFrame);
    return bResult;
}

Referenced by FrameRgn().

NtGdiGetPixel()

COLORREF APIENTRY NtGdiGetPixel	(	_In_ HDC	hdc,
		_In_ INT	x,
		_In_ INT	y
	)

Definition at line 1512 of file bitblt.c.

{
    PDC pdc;
    ULONG ulRGBColor = CLR_INVALID;
    POINTL ptlSrc;
    RECT rcDest;
    PSURFACE psurfSrc, psurfDest;
 
    /* Lock the DC */
    pdc = DC_LockDc(hdc);
    if (!pdc)
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return CLR_INVALID;
    }
 
    /* Check if the DC has no surface (empty mem or info DC) */
    if (pdc->dclevel.pSurface == NULL)
    {
        /* Fail! */
        goto leave;
    }
 
    /* Get the logical coordinates */
    ptlSrc.x = x;
    ptlSrc.y = y;
 
    /* Translate coordinates to device coordinates */
    IntLPtoDP(pdc, &ptlSrc, 1);
    ptlSrc.x += pdc->ptlDCOrig.x;
    ptlSrc.y += pdc->ptlDCOrig.y;
 
    rcDest.left = x;
    rcDest.top = y;
    rcDest.right = x + 1;
    rcDest.bottom = y + 1;
 
    /* Prepare DC for blit */
    DC_vPrepareDCsForBlit(pdc, &rcDest, NULL, NULL);
 
    /* Check if the pixel is outside the surface */
    psurfSrc = pdc->dclevel.pSurface;
    if ((ptlSrc.x >= psurfSrc->SurfObj.sizlBitmap.cx) ||
        (ptlSrc.y >= psurfSrc->SurfObj.sizlBitmap.cy) ||
        (ptlSrc.x < 0) ||
        (ptlSrc.y < 0))
    {
        /* Fail! */
        goto leave;
    }
 
    /* Allocate a surface */
    psurfDest = SURFACE_AllocSurface(STYPE_BITMAP,
                                     1,
                                     1,
                                     BMF_32BPP,
                                     0,
                                     0,
                                     0,
                                     &ulRGBColor);
    if (psurfDest)
    {
        RECTL rclDest = {0, 0, 1, 1};
        EXLATEOBJ exlo;
 
        /* Translate from the source palette to RGB color */
        EXLATEOBJ_vInitialize(&exlo,
                              psurfSrc->ppal,
                              &gpalRGB,
                              0,
                              RGB(0xff,0xff,0xff),
                              RGB(0,0,0));
 
        /* Call the copy bits function */
        EngCopyBits(&psurfDest->SurfObj,
                    &psurfSrc->SurfObj,
                    NULL,
                    &exlo.xlo,
                    &rclDest,
                    &ptlSrc);
 
        /* Cleanup the XLATEOBJ */
        EXLATEOBJ_vCleanup(&exlo);
 
        /* Delete the surface */
        GDIOBJ_vDeleteObject(&psurfDest->BaseObject);
 
        /* The top byte is zero */
        ulRGBColor &= 0x00FFFFFF;
    }
 
leave:
 
    /* Unlock the DC */
    DC_vFinishBlit(pdc, NULL);
    DC_UnlockDc(pdc);
 
    /* Return the new RGB color or -1 on failure */
    return ulRGBColor;
}

Referenced by GetPixel(), and START_TEST().

NtGdiInvertRgn()

BOOL APIENTRY NtGdiInvertRgn	(	_In_ HDC	hdc,
		_In_ HRGN	hrgn
	)

Definition at line 1376 of file bitblt.c.

{
    BOOL bResult;
    PDC pdc;
    PREGION prgn;
 
    /* Lock the DC */
    pdc = DC_LockDc(hdc);
    if (pdc == NULL)
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return FALSE;
    }
 
    /* Check if the DC has no surface (empty mem or info DC) */
    if (pdc->dclevel.pSurface == NULL)
    {
        /* Nothing to do, Windows returns TRUE! */
        DC_UnlockDc(pdc);
        return TRUE;
    }
 
    /* Lock the region */
    prgn = REGION_LockRgn(hrgn);
    if (prgn == NULL)
    {
        DC_UnlockDc(pdc);
        return FALSE;
    }
 
    /* Call the internal function */
    bResult = IntGdiBitBltRgn(pdc,
                              prgn,
                              NULL, // pbo
                              NULL, // pptlBrush,
                              ROP4_DSTINVERT);
 
    /* Unlock the region and DC and return the result */
    REGION_UnlockRgn(prgn);
    DC_UnlockDc(pdc);
    return bResult;
}

Referenced by InvertRgn().

NtGdiMaskBlt()

BOOL APIENTRY NtGdiMaskBlt	(	HDC	hdcDest,
		INT	nXDest,
		INT	nYDest,
		INT	nWidth,
		INT	nHeight,
		HDC	hdcSrc,
		INT	nXSrc,
		INT	nYSrc,
		HBITMAP	hbmMask,
		INT	xMask,
		INT	yMask,
		DWORD	dwRop4,
		IN DWORD	crBackColor
	)

Definition at line 314 of file bitblt.c.

{
    PDC DCDest;
    PDC DCSrc = NULL;
    HDC ahDC[2];
    PGDIOBJ apObj[2];
    PDC_ATTR pdcattr = NULL;
    SURFACE *BitmapDest, *BitmapSrc = NULL, *psurfMask = NULL;
    RECTL DestRect, SourceRect;
    POINTL SourcePoint, MaskPoint;
    BOOL Status = FALSE;
    EXLATEOBJ exlo;
    XLATEOBJ *XlateObj = NULL;
    BOOL UsesSource;
    ROP4 rop4;
 
    rop4 = WIN32_ROP4_TO_ENG_ROP4(dwRop4);
 
    UsesSource = ROP4_USES_SOURCE(rop4);
    if (!hdcDest || (UsesSource && !hdcSrc))
    {
        EngSetLastError(ERROR_INVALID_PARAMETER);
        return FALSE;
    }
 
    /* Check if we need a mask and have a mask bitmap */
    if (ROP4_USES_MASK(rop4) && (hbmMask != NULL))
    {
        /* Reference the mask bitmap */
        psurfMask = SURFACE_ShareLockSurface(hbmMask);
        if (psurfMask == NULL)
        {
            EngSetLastError(ERROR_INVALID_HANDLE);
            return FALSE;
        }
 
        /* Make sure the mask bitmap is 1 BPP */
        if (gajBitsPerFormat[psurfMask->SurfObj.iBitmapFormat] != 1)
        {
            EngSetLastError(ERROR_INVALID_PARAMETER);
            SURFACE_ShareUnlockSurface(psurfMask);
            return FALSE;
        }
    }
    else
    {
        /* We use NULL, if we need a mask, the Eng function will take care of
           that and use the brushobject to get a mask */
        psurfMask = NULL;
    }
 
    MaskPoint.x = xMask;
    MaskPoint.y = yMask;
 
    /* Take care of source and destination bitmap */
    TRACE("Locking DCs\n");
    ahDC[0] = hdcDest;
    ahDC[1] = UsesSource ? hdcSrc : NULL;
    if (!GDIOBJ_bLockMultipleObjects(2, (HGDIOBJ*)ahDC, apObj, GDIObjType_DC_TYPE))
    {
        WARN("Invalid dc handle (dest=0x%p, src=0x%p) passed to NtGdiMaskBlt\n", hdcDest, hdcSrc);
        if(psurfMask) SURFACE_ShareUnlockSurface(psurfMask);
        EngSetLastError(ERROR_INVALID_HANDLE);
        return FALSE;
    }
    DCDest = apObj[0];
    DCSrc = apObj[1];
 
    ASSERT(DCDest);
    if (NULL == DCDest)
    {
        if(DCSrc) DC_UnlockDc(DCSrc);
        WARN("Invalid destination dc handle (0x%p) passed to NtGdiMaskBlt\n", hdcDest);
        if(psurfMask) SURFACE_ShareUnlockSurface(psurfMask);
        return FALSE;
    }
 
    if (DCDest->dctype == DCTYPE_INFO)
    {
        if(DCSrc) DC_UnlockDc(DCSrc);
        DC_UnlockDc(DCDest);
        /* Yes, Windows really returns TRUE in this case */
        if(psurfMask) SURFACE_ShareUnlockSurface(psurfMask);
        return TRUE;
    }
 
    if (UsesSource)
    {
        ASSERT(DCSrc);
        if (DCSrc->dctype == DCTYPE_INFO)
        {
            DC_UnlockDc(DCDest);
            DC_UnlockDc(DCSrc);
            /* Yes, Windows really returns TRUE in this case */
            if(psurfMask) SURFACE_ShareUnlockSurface(psurfMask);
            return TRUE;
        }
    }
 
    pdcattr = DCDest->pdcattr;
 
    DestRect.left   = nXDest;
    DestRect.top    = nYDest;
    DestRect.right  = nXDest + nWidth;
    DestRect.bottom = nYDest + nHeight;
    IntLPtoDP(DCDest, (LPPOINT)&DestRect, 2);
 
    DestRect.left   += DCDest->ptlDCOrig.x;
    DestRect.top    += DCDest->ptlDCOrig.y;
    DestRect.right  += DCDest->ptlDCOrig.x;
    DestRect.bottom += DCDest->ptlDCOrig.y;
 
    if (DCDest->fs & (DC_ACCUM_APP|DC_ACCUM_WMGR))
    {
       IntUpdateBoundsRect(DCDest, &DestRect);
    }
 
    SourcePoint.x = nXSrc;
    SourcePoint.y = nYSrc;
 
    if (UsesSource)
    {
        IntLPtoDP(DCSrc, (LPPOINT)&SourcePoint, 1);
 
        SourcePoint.x += DCSrc->ptlDCOrig.x;
        SourcePoint.y += DCSrc->ptlDCOrig.y;
        /* Calculate Source Rect */
        SourceRect.left = SourcePoint.x;
        SourceRect.top = SourcePoint.y;
        SourceRect.right = SourcePoint.x + DestRect.right - DestRect.left;
        SourceRect.bottom = SourcePoint.y + DestRect.bottom - DestRect.top ;
    }
    else
    {
        SourceRect.left = 0;
        SourceRect.top = 0;
        SourceRect.right = 0;
        SourceRect.bottom = 0;
    }
 
    /* Prepare blit */
    DC_vPrepareDCsForBlit(DCDest, &DestRect, DCSrc, &SourceRect);
 
    if (pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
        DC_vUpdateFillBrush(DCDest);
 
    /* Determine surfaces to be used in the bitblt */
    BitmapDest = DCDest->dclevel.pSurface;
    if (!BitmapDest)
        goto cleanup;
 
    if (UsesSource)
    {
        BitmapSrc = DCSrc->dclevel.pSurface;
        if (!BitmapSrc)
            goto cleanup;
 
        /* Create the XLATEOBJ. */
        EXLATEOBJ_vInitXlateFromDCs(&exlo, DCSrc, DCDest);
        XlateObj = &exlo.xlo;
    }
 
    DPRINT("DestRect: (%d,%d)-(%d,%d) and SourcePoint is (%d,%d)\n",
        DestRect.left, DestRect.top, DestRect.right, DestRect.bottom,
        SourcePoint.x, SourcePoint.y);
 
    DPRINT("nWidth is '%d' and nHeight is '%d'.\n", nWidth, nHeight);
 
    /* Fix BitBlt so that it will not flip left to right */
    if ((DestRect.left > DestRect.right) && (nWidth < 0))
    {
        SourcePoint.x += nWidth;
        nWidth = -nWidth;
    }
 
    /* Fix BitBlt so that it will not flip top to bottom */
    if ((DestRect.top > DestRect.bottom) && (nHeight < 0))
    {
        SourcePoint.y += nHeight;
        nHeight = -nHeight;
    }
 
    /* Make Well Ordered so that we don't flip either way */
    RECTL_vMakeWellOrdered(&DestRect);
 
    /* Perform the bitblt operation */
    Status = IntEngBitBlt(&BitmapDest->SurfObj,
                          BitmapSrc ? &BitmapSrc->SurfObj : NULL,
                          psurfMask ? &psurfMask->SurfObj : NULL,
                          (CLIPOBJ *)&DCDest->co,
                          XlateObj,
                          &DestRect,
                          &SourcePoint,
                          &MaskPoint,
                          &DCDest->eboFill.BrushObject,
                          &DCDest->dclevel.pbrFill->ptOrigin,
                          rop4);
 
    if (UsesSource)
        EXLATEOBJ_vCleanup(&exlo);
cleanup:
    DC_vFinishBlit(DCDest, DCSrc);
    if (UsesSource)
    {
        DC_UnlockDc(DCSrc);
    }
    DC_UnlockDc(DCDest);
    if(psurfMask) SURFACE_ShareUnlockSurface(psurfMask);
 
    return Status;
}

Referenced by NtGdiBitBlt().

NtGdiPatBlt()

BOOL APIENTRY NtGdiPatBlt	(	_In_ HDC	hdcDest,
		_In_ INT	x,
		_In_ INT	y,
		_In_ INT	cx,
		_In_ INT	cy,
		_In_ DWORD	dwRop
	)

Definition at line 984 of file bitblt.c.

{
    BOOL bResult;
    PDC pdc;
 
    /* Convert the ROP3 to a ROP4 */
    dwRop = MAKEROP4(dwRop & 0xFF0000, dwRop);
 
    /* Check if the rop uses a source */
    if (WIN32_ROP4_USES_SOURCE(dwRop))
    {
        /* This is not possible */
        return FALSE;
    }
 
    /* Lock the DC */
    pdc = DC_LockDc(hdcDest);
    if (pdc == NULL)
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return FALSE;
    }
 
    /* Check if the DC has no surface (empty mem or info DC) */
    if (pdc->dclevel.pSurface == NULL)
    {
        /* Nothing to do, Windows returns TRUE! */
        DC_UnlockDc(pdc);
        return TRUE;
    }
 
    /* Update the fill brush, if necessary */
    if (pdc->pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
        DC_vUpdateFillBrush(pdc);
 
    /* Call the internal function */
    bResult = IntPatBlt(pdc, x, y, cx, cy, dwRop, &pdc->eboFill);
 
    /* Unlock the DC and return the result */
    DC_UnlockDc(pdc);
    return bResult;
}

Referenced by co_IntDrawCaret(), FillRect(), FrameRect(), IntDrawScrollInterior(), IntPaintDesktop(), IntUpdateLayeredWindowI(), NC_DoNCPaint(), NC_DrawFrame(), PatBlt(), UITOOLS_DrawCheckedRect(), UserDrawCaption(), UserDrawCaptionBar(), and UserDrawWindowFrame().

NtGdiPlgBlt()

BOOL APIENTRY NtGdiPlgBlt	(	IN HDC	hdcTrg,
		IN LPPOINT	pptlTrg,
		IN HDC	hdcSrc,
		IN INT	xSrc,
		IN INT	ySrc,
		IN INT	cxSrc,
		IN INT	cySrc,
		IN HBITMAP	hbmMask,
		IN INT	xMask,
		IN INT	yMask,
		IN DWORD	crBackColor
	)

Definition at line 541 of file bitblt.c.

{
    FIXME("NtGdiPlgBlt: unimplemented.\n");
    return FALSE;
}

NtGdiPolyPatBlt()

BOOL APIENTRY NtGdiPolyPatBlt	(	HDC	hDC,
		DWORD	dwRop,
		IN PPOLYPATBLT	pRects,
		IN DWORD	cRects,
		IN DWORD	Mode
	)

Definition at line 1035 of file bitblt.c.

{
    PPATRECT rb = NULL;
    NTSTATUS Status = STATUS_SUCCESS;
    BOOL Ret;
 
    if (cRects > 0)
    {
        rb = ExAllocatePoolWithTag(PagedPool, sizeof(PATRECT) * cRects, GDITAG_PLGBLT_DATA);
        if (!rb)
        {
            EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
            return FALSE;
        }
        _SEH2_TRY
        {
            ProbeForRead(pRects,
                cRects * sizeof(PATRECT),
                1);
            RtlCopyMemory(rb,
                pRects,
                cRects * sizeof(PATRECT));
        }
        _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
        {
            Status = _SEH2_GetExceptionCode();
        }
        _SEH2_END;
 
        if (!NT_SUCCESS(Status))
        {
            ExFreePoolWithTag(rb, GDITAG_PLGBLT_DATA);
            SetLastNtError(Status);
            return FALSE;
        }
    }
 
    Ret = IntGdiPolyPatBlt(hDC, dwRop, rb, cRects, Mode);
 
    if (cRects > 0)
        ExFreePoolWithTag(rb, GDITAG_PLGBLT_DATA);
 
    return Ret;
}

NtGdiSetPixel()

COLORREF APIENTRY NtGdiSetPixel	(	_In_ HDC	hdc,
		_In_ INT	x,
		_In_ INT	y,
		_In_ COLORREF	crColor
	)

FIXME: we shouldn't dereference pSurface while the PDEV is not locked!

Definition at line 1423 of file bitblt.c.

{
    PDC pdc;
    ULONG iOldColor, iSolidColor;
    BOOL bResult;
    PEBRUSHOBJ pebo;
    ULONG ulDirty;
    EXLATEOBJ exlo;
 
    /* Lock the DC */
    pdc = DC_LockDc(hdc);
    if (!pdc)
    {
        EngSetLastError(ERROR_INVALID_HANDLE);
        return -1;
    }
 
    /* Check if the DC has no surface (empty mem or info DC) */
    if (pdc->dclevel.pSurface == NULL)
    {
        /* Fail! */
        DC_UnlockDc(pdc);
        return -1;
    }
 
    if (pdc->fs & (DC_ACCUM_APP|DC_ACCUM_WMGR))
    {
       RECTL rcDst;
 
       RECTL_vSetRect(&rcDst, x, y, x+1, y+1);
 
       IntLPtoDP(pdc, (LPPOINT)&rcDst, 2);
 
       rcDst.left   += pdc->ptlDCOrig.x;
       rcDst.top    += pdc->ptlDCOrig.y;
       rcDst.right  += pdc->ptlDCOrig.x;
       rcDst.bottom += pdc->ptlDCOrig.y;
 
       IntUpdateBoundsRect(pdc, &rcDst);
    }
 
    /* Translate the color to the target format */
    iSolidColor = TranslateCOLORREF(pdc, crColor);
 
    /* Use the DC's text brush, which is always a solid brush */
    pebo = &pdc->eboText;
 
    /* Save the old solid color and set the one for the pixel */
    iOldColor = EBRUSHOBJ_iSetSolidColor(pebo, iSolidColor);
 
    /* Save dirty flags and reset dirty text brush flag */
    ulDirty = pdc->pdcattr->ulDirty_;
    pdc->pdcattr->ulDirty_ &= ~DIRTY_TEXT;
 
    /* Call the internal function */
    bResult = IntPatBlt(pdc, x, y, 1, 1, PATCOPY, pebo);
 
    /* Restore old text brush color and dirty flags */
    EBRUSHOBJ_iSetSolidColor(pebo, iOldColor);
    pdc->pdcattr->ulDirty_ = ulDirty;
 
    /* Initialize an XLATEOBJ from the target surface to RGB */
    EXLATEOBJ_vInitialize(&exlo,
                          pdc->dclevel.pSurface->ppal,
                          &gpalRGB,
                          0,
                          pdc->pdcattr->crBackgroundClr,
                          pdc->pdcattr->crForegroundClr);
 
    /* Translate the color back to RGB */
    crColor = XLATEOBJ_iXlate(&exlo.xlo, iSolidColor);
 
    /* Cleanup and return the target format color */
    EXLATEOBJ_vCleanup(&exlo);
 
    /* Unlock the DC */
    DC_UnlockDc(pdc);
 
    /* Return the new RGB color or -1 on failure */
    return bResult ? crColor : -1;
}

Referenced by SetPixel(), and START_TEST().

NtGdiStretchBlt()

BOOL APIENTRY NtGdiStretchBlt	(	HDC	hDCDest,
		INT	XOriginDest,
		INT	YOriginDest,
		INT	WidthDest,
		INT	HeightDest,
		HDC	hDCSrc,
		INT	XOriginSrc,
		INT	YOriginSrc,
		INT	WidthSrc,
		INT	HeightSrc,
		DWORD	dwRop3,
		IN DWORD	dwBackColor
	)

Definition at line 801 of file bitblt.c.

{
    dwRop3 = dwRop3 & ~(NOMIRRORBITMAP|CAPTUREBLT);
 
    return GreStretchBltMask(
                hDCDest,
                XOriginDest,
                YOriginDest,
                WidthDest,
                HeightDest,
                hDCSrc,
                XOriginSrc,
                YOriginSrc,
                WidthSrc,
                HeightSrc,
                MAKEROP4(dwRop3 & 0xFF0000, dwRop3),
                dwBackColor,
                NULL,
                0,
                0);
}

Referenced by NtGdiBitBlt().

NtGdiTransparentBlt()

BOOL APIENTRY NtGdiTransparentBlt	(	HDC	hdcDst,
		INT	xDst,
		INT	yDst,
		INT	cxDst,
		INT	cyDst,
		HDC	hdcSrc,
		INT	xSrc,
		INT	ySrc,
		INT	cxSrc,
		INT	cySrc,
		COLORREF	TransColor
	)

Definition at line 202 of file bitblt.c.

{
    PDC DCDest, DCSrc;
    HDC ahDC[2];
    PGDIOBJ apObj[2];
    RECTL rcDest, rcSrc;
    SURFACE *BitmapDest, *BitmapSrc = NULL;
    ULONG TransparentColor = 0;
    BOOL Ret = FALSE;
    EXLATEOBJ exlo;
 
    if ((hdcDst == NULL) || (hdcSrc == NULL))
    {
        EngSetLastError(ERROR_INVALID_PARAMETER);
        return FALSE;
    }
 
    TRACE("Locking DCs\n");
    ahDC[0] = hdcDst;
    ahDC[1] = hdcSrc ;
    if (!GDIOBJ_bLockMultipleObjects(2, (HGDIOBJ*)ahDC, apObj, GDIObjType_DC_TYPE))
    {
        WARN("Invalid dc handle (dest=0x%p, src=0x%p) passed to NtGdiAlphaBlend\n", hdcDst, hdcSrc);
        EngSetLastError(ERROR_INVALID_HANDLE);
        return FALSE;
    }
    DCDest = apObj[0];
    DCSrc = apObj[1];
 
    if (DCDest->dctype == DCTYPE_INFO || DCDest->dctype == DCTYPE_INFO)
    {
        GDIOBJ_vUnlockObject(&DCSrc->BaseObject);
        GDIOBJ_vUnlockObject(&DCDest->BaseObject);
        /* Yes, Windows really returns TRUE in this case */
        return TRUE;
    }
 
    rcDest.left   = xDst;
    rcDest.top    = yDst;
    rcDest.right  = rcDest.left + cxDst;
    rcDest.bottom = rcDest.top + cyDst;
    IntLPtoDP(DCDest, (LPPOINT)&rcDest, 2);
 
    rcDest.left   += DCDest->ptlDCOrig.x;
    rcDest.top    += DCDest->ptlDCOrig.y;
    rcDest.right  += DCDest->ptlDCOrig.x;
    rcDest.bottom += DCDest->ptlDCOrig.y;
 
    rcSrc.left   = xSrc;
    rcSrc.top    = ySrc;
    rcSrc.right  = rcSrc.left + cxSrc;
    rcSrc.bottom = rcSrc.top + cySrc;
    IntLPtoDP(DCSrc, (LPPOINT)&rcSrc, 2);
 
    rcSrc.left   += DCSrc->ptlDCOrig.x;
    rcSrc.top    += DCSrc->ptlDCOrig.y;
    rcSrc.right  += DCSrc->ptlDCOrig.x;
    rcSrc.bottom += DCSrc->ptlDCOrig.y;
 
    if (DCDest->fs & (DC_ACCUM_APP|DC_ACCUM_WMGR))
    {
       IntUpdateBoundsRect(DCDest, &rcDest);
    }
 
    /* Prepare for blit */
    DC_vPrepareDCsForBlit(DCDest, &rcDest, DCSrc, &rcSrc);
 
    BitmapDest = DCDest->dclevel.pSurface;
    if (!BitmapDest)
    {
        goto done;
    }
 
    BitmapSrc = DCSrc->dclevel.pSurface;
    if (!BitmapSrc)
    {
        goto done;
    }
 
    /* Translate Transparent (RGB) Color to the source palette */
    EXLATEOBJ_vInitialize(&exlo, &gpalRGB, BitmapSrc->ppal, 0, 0, 0);
    TransparentColor = XLATEOBJ_iXlate(&exlo.xlo, (ULONG)TransColor);
    EXLATEOBJ_vCleanup(&exlo);
 
    EXLATEOBJ_vInitXlateFromDCs(&exlo, DCSrc, DCDest);
 
    Ret = IntEngTransparentBlt(&BitmapDest->SurfObj, &BitmapSrc->SurfObj,
        (CLIPOBJ *)&DCDest->co, &exlo.xlo, &rcDest, &rcSrc,
        TransparentColor, 0);
 
    EXLATEOBJ_vCleanup(&exlo);
 
done:
    DC_vFinishBlit(DCDest, DCSrc);
    GDIOBJ_vUnlockObject(&DCDest->BaseObject);
    GDIOBJ_vUnlockObject(&DCSrc->BaseObject);
 
    return Ret;
}

REGION_LPTODP()

static BOOL FASTCALL REGION_LPTODP ( _In_ PDC  pdc, _Inout_ PREGION  prgnDest, _In_ PREGION  prgnSrc  )

static

Definition at line 1088 of file bitblt.c.

{
    if (IntGdiCombineRgn(prgnDest, prgnSrc, NULL, RGN_COPY) == ERROR)
        return FALSE;
 
    return REGION_bXformRgn(prgnDest, DC_pmxWorldToDevice(pdc));
}

Referenced by IntGdiBitBltRgn(), and IntGdiFillRgn().