BOOL
APIENTRY
NtGdiArcInternal(
ARCTYPE arctype,
HDC hDC,
int LeftRect,
int TopRect,
int RightRect,
int BottomRect,
int XStartArc,
int YStartArc,
int XEndArc,
int YEndArc)
{
DC *dc;
BOOL Ret;
KFLOATING_SAVE FloatSave;
dc = DC_LockDc (hDC);
if(!dc)
{
EngSetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
if (dc->dctype == DC_TYPE_INFO)
{
DC_UnlockDc(dc);
/* Yes, Windows really returns TRUE in this case */
return TRUE;
}
DC_vPrepareDCsForBlit(dc, dc->rosdc.CombinedClip->rclBounds,
NULL, dc->rosdc.CombinedClip->rclBounds);
if (dc->pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
DC_vUpdateFillBrush(dc);
if (dc->pdcattr->ulDirty_ & (DIRTY_LINE | DC_PEN_DIRTY))
DC_vUpdateLineBrush(dc);
KeSaveFloatingPointState(&FloatSave);
Ret = IntGdiArcInternal(
arctype,
dc,
LeftRect,
TopRect,
RightRect,
BottomRect,
XStartArc,
YStartArc,
XEndArc,
YEndArc);
KeRestoreFloatingPointState(&FloatSave);
DC_vFinishBlit(dc, NULL);
DC_UnlockDc( dc );
return Ret;
}
BOOL
APIENTRY
NtGdiAngleArc(
IN HDC hDC,
IN INT x,
IN INT y,
IN DWORD dwRadius,
IN DWORD dwStartAngle,
IN DWORD dwSweepAngle)
{
DC *pDC;
BOOL Ret = FALSE;
gxf_long worker, worker1;
KFLOATING_SAVE FloatSave;
pDC = DC_LockDc (hDC);
if(!pDC)
{
EngSetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
if (pDC->dctype == DC_TYPE_INFO)
{
DC_UnlockDc(pDC);
/* Yes, Windows really returns TRUE in this case */
return TRUE;
}
KeSaveFloatingPointState(&FloatSave);
worker.l = dwStartAngle;
worker1.l = dwSweepAngle;
DC_vPrepareDCsForBlit(pDC, pDC->rosdc.CombinedClip->rclBounds,
NULL, pDC->rosdc.CombinedClip->rclBounds);
if (pDC->pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
DC_vUpdateFillBrush(pDC);
if (pDC->pdcattr->ulDirty_ & (DIRTY_LINE | DC_PEN_DIRTY))
DC_vUpdateLineBrush(pDC);
Ret = IntGdiAngleArc( pDC, x, y, dwRadius, worker.f, worker1.f);
DC_vFinishBlit(pDC, NULL);
DC_UnlockDc( pDC );
KeRestoreFloatingPointState(&FloatSave);
return Ret;
}
BOOL
NTAPI
GreGradientFill(
HDC hdc,
PTRIVERTEX pVertex,
ULONG nVertex,
PVOID pMesh,
ULONG nMesh,
ULONG ulMode)
{
PDC pdc;
SURFACE *psurf;
EXLATEOBJ exlo;
RECTL rclExtent;
POINTL ptlDitherOrg;
ULONG i;
BOOL bRet;
/* Check parameters */
if (ulMode & GRADIENT_FILL_TRIANGLE)
{
PGRADIENT_TRIANGLE pTriangle = (PGRADIENT_TRIANGLE)pMesh;
for (i = 0; i < nMesh; i++, pTriangle++)
{
if (pTriangle->Vertex1 >= nVertex ||
pTriangle->Vertex2 >= nVertex ||
pTriangle->Vertex3 >= nVertex)
{
EngSetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
}
}
else
{
PGRADIENT_RECT pRect = (PGRADIENT_RECT)pMesh;
for (i = 0; i < nMesh; i++, pRect++)
{
if (pRect->UpperLeft >= nVertex || pRect->LowerRight >= nVertex)
{
EngSetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
}
}
/* Lock the output DC */
pdc = DC_LockDc(hdc);
if(!pdc)
{
EngSetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
if(pdc->dctype == DC_TYPE_INFO)
{
DC_UnlockDc(pdc);
/* Yes, Windows really returns TRUE in this case */
return TRUE;
}
psurf = pdc->dclevel.pSurface;
if(!psurf)
{
/* Memory DC with no surface selected */
DC_UnlockDc(pdc);
return TRUE; // CHECKME
}
/* Calculate extent */
rclExtent.left = rclExtent.right = pVertex->x;
rclExtent.top = rclExtent.bottom = pVertex->y;
for (i = 0; i < nVertex; i++)
{
rclExtent.left = min(rclExtent.left, (pVertex + i)->x);
rclExtent.right = max(rclExtent.right, (pVertex + i)->x);
rclExtent.top = min(rclExtent.top, (pVertex + i)->y);
rclExtent.bottom = max(rclExtent.bottom, (pVertex + i)->y);
}
IntLPtoDP(pdc, (LPPOINT)&rclExtent, 2);
rclExtent.left += pdc->ptlDCOrig.x;
rclExtent.right += pdc->ptlDCOrig.x;
rclExtent.top += pdc->ptlDCOrig.y;
rclExtent.bottom += pdc->ptlDCOrig.y;
ptlDitherOrg.x = ptlDitherOrg.y = 0;
IntLPtoDP(pdc, (LPPOINT)&ptlDitherOrg, 1);
ptlDitherOrg.x += pdc->ptlDCOrig.x;
ptlDitherOrg.y += pdc->ptlDCOrig.y;
EXLATEOBJ_vInitialize(&exlo, &gpalRGB, psurf->ppal, 0, 0, 0);
ASSERT(pdc->rosdc.CombinedClip);
DC_vPrepareDCsForBlit(pdc, rclExtent, NULL, rclExtent);
bRet = IntEngGradientFill(&psurf->SurfObj,
pdc->rosdc.CombinedClip,
&exlo.xlo,
pVertex,
nVertex,
pMesh,
nMesh,
&rclExtent,
&ptlDitherOrg,
ulMode);
EXLATEOBJ_vCleanup(&exlo);
DC_vFinishBlit(pdc, NULL);
DC_UnlockDc(pdc);
return bRet;
}
BOOL
FASTCALL
IntRoundRect(
PDC dc,
int Left,
int Top,
int Right,
int Bottom,
int xCurveDiameter,
int yCurveDiameter)
{
PDC_ATTR pdcattr;
PBRUSH pbrLine, pbrFill;
RECTL RectBounds;
LONG PenWidth, PenOrigWidth;
BOOL ret = TRUE; // Default to success
BRUSH brushTemp;
ASSERT ( dc ); // Caller's responsibility to set this up
if ( PATH_IsPathOpen(dc->dclevel) )
return PATH_RoundRect ( dc, Left, Top, Right, Bottom,
xCurveDiameter, yCurveDiameter );
if ((Left == Right) || (Top == Bottom)) return TRUE;
xCurveDiameter = max(abs( xCurveDiameter ), 1);
yCurveDiameter = max(abs( yCurveDiameter ), 1);
if (Right < Left)
{
INT tmp = Right; Right = Left; Left = tmp;
}
if (Bottom < Top)
{
INT tmp = Bottom; Bottom = Top; Top = tmp;
}
pdcattr = dc->pdcattr;
if (pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
DC_vUpdateFillBrush(dc);
if (pdcattr->ulDirty_ & (DIRTY_LINE | DC_PEN_DIRTY))
DC_vUpdateLineBrush(dc);
pbrLine = PEN_ShareLockPen(pdcattr->hpen);
if (!pbrLine)
{
/* Nothing to do, as we don't have a bitmap */
EngSetLastError(ERROR_INTERNAL_ERROR);
return FALSE;
}
PenOrigWidth = PenWidth = pbrLine->ptPenWidth.x;
if (pbrLine->ulPenStyle == PS_NULL) PenWidth = 0;
if (pbrLine->ulPenStyle == PS_INSIDEFRAME)
{
if (2*PenWidth > (Right - Left)) PenWidth = (Right -Left + 1)/2;
if (2*PenWidth > (Bottom - Top)) PenWidth = (Bottom -Top + 1)/2;
Left += PenWidth / 2;
Right -= (PenWidth - 1) / 2;
Top += PenWidth / 2;
Bottom -= (PenWidth - 1) / 2;
}
if (!PenWidth) PenWidth = 1;
pbrLine->ptPenWidth.x = PenWidth;
RectBounds.left = Left;
RectBounds.top = Top;
RectBounds.right = Right;
RectBounds.bottom = Bottom;
IntLPtoDP(dc, (LPPOINT)&RectBounds, 2);
RectBounds.left += dc->ptlDCOrig.x;
RectBounds.top += dc->ptlDCOrig.y;
RectBounds.right += dc->ptlDCOrig.x;
RectBounds.bottom += dc->ptlDCOrig.y;
pbrFill = BRUSH_ShareLockBrush(pdcattr->hbrush);
if (!pbrFill)
{
DPRINT1("FillRound Fail\n");
EngSetLastError(ERROR_INTERNAL_ERROR);
ret = FALSE;
}
else
{
DC_vPrepareDCsForBlit(dc, RectBounds, NULL, RectBounds);
RtlCopyMemory(&brushTemp, pbrFill, sizeof(brushTemp));
brushTemp.ptOrigin.x += RectBounds.left - Left;
brushTemp.ptOrigin.y += RectBounds.top - Top;
ret = IntFillRoundRect( dc,
RectBounds.left,
RectBounds.top,
RectBounds.right,
RectBounds.bottom,
xCurveDiameter,
yCurveDiameter,
&brushTemp);
BRUSH_ShareUnlockBrush(pbrFill);
if (ret)
{
ret = IntDrawRoundRect( dc,
RectBounds.left,
RectBounds.top,
RectBounds.right,
RectBounds.bottom,
xCurveDiameter,
yCurveDiameter,
pbrLine);
}
DC_vFinishBlit(dc, NULL);
}
pbrLine->ptPenWidth.x = PenOrigWidth;
PEN_ShareUnlockPen(pbrLine);
return ret;
}
BOOL
FASTCALL
IntRectangle(PDC dc,
int LeftRect,
int TopRect,
int RightRect,
int BottomRect)
{
SURFACE *psurf = NULL;
PBRUSH pbrLine, pbrFill;
BOOL ret = FALSE; // Default to failure
RECTL DestRect;
MIX Mix;
PDC_ATTR pdcattr;
POINTL BrushOrigin;
ASSERT ( dc ); // Caller's responsibility to set this up
pdcattr = dc->pdcattr;
// Rectangle Path only.
if ( PATH_IsPathOpen(dc->dclevel) )
{
return PATH_Rectangle ( dc, LeftRect, TopRect, RightRect, BottomRect );
}
/* Make sure rectangle is not inverted */
DestRect.left = min(LeftRect, RightRect);
DestRect.right = max(LeftRect, RightRect);
DestRect.top = min(TopRect, BottomRect);
DestRect.bottom = max(TopRect, BottomRect);
IntLPtoDP(dc, (LPPOINT)&DestRect, 2);
DestRect.left += dc->ptlDCOrig.x;
DestRect.right += dc->ptlDCOrig.x;
DestRect.top += dc->ptlDCOrig.y;
DestRect.bottom += dc->ptlDCOrig.y;
/* In GM_COMPATIBLE, don't include bottom and right edges */
if (pdcattr->iGraphicsMode == GM_COMPATIBLE)
{
DestRect.right--;
DestRect.bottom--;
}
DC_vPrepareDCsForBlit(dc, DestRect, NULL, DestRect);
if (pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
DC_vUpdateFillBrush(dc);
if (pdcattr->ulDirty_ & (DIRTY_LINE | DC_PEN_DIRTY))
DC_vUpdateLineBrush(dc);
pbrFill = dc->dclevel.pbrFill;
pbrLine = dc->dclevel.pbrLine;
if (!pbrLine)
{
ret = FALSE;
goto cleanup;
}
psurf = dc->dclevel.pSurface;
if (!psurf)
{
ret = FALSE;
goto cleanup;
}
if (pbrFill)
{
if (!(pbrFill->flAttrs & BR_IS_NULL))
{
BrushOrigin = *((PPOINTL)&pbrFill->ptOrigin);
BrushOrigin.x += dc->ptlDCOrig.x;
BrushOrigin.y += dc->ptlDCOrig.y;
ret = IntEngBitBlt(&psurf->SurfObj,
NULL,
NULL,
dc->rosdc.CombinedClip,
NULL,
&DestRect,
NULL,
NULL,
&dc->eboFill.BrushObject,
&BrushOrigin,
ROP4_FROM_INDEX(R3_OPINDEX_PATCOPY));
}
}
// Draw the rectangle with the current pen
ret = TRUE; // Change default to success
if (!(pbrLine->flAttrs & BR_IS_NULL))
{
Mix = ROP2_TO_MIX(pdcattr->jROP2);
ret = ret && IntEngLineTo(&psurf->SurfObj,
dc->rosdc.CombinedClip,
&dc->eboLine.BrushObject,
DestRect.left, DestRect.top, DestRect.right, DestRect.top,
&DestRect, // Bounding rectangle
Mix);
ret = ret && IntEngLineTo(&psurf->SurfObj,
dc->rosdc.CombinedClip,
&dc->eboLine.BrushObject,
DestRect.right, DestRect.top, DestRect.right, DestRect.bottom,
&DestRect, // Bounding rectangle
Mix);
ret = ret && IntEngLineTo(&psurf->SurfObj,
dc->rosdc.CombinedClip,
&dc->eboLine.BrushObject,
DestRect.right, DestRect.bottom, DestRect.left, DestRect.bottom,
&DestRect, // Bounding rectangle
Mix);
ret = ret && IntEngLineTo(&psurf->SurfObj,
dc->rosdc.CombinedClip,
&dc->eboLine.BrushObject,
DestRect.left, DestRect.bottom, DestRect.left, DestRect.top,
&DestRect, // Bounding rectangle
Mix);
}
cleanup:
DC_vFinishBlit(dc, NULL);
/* Move current position in DC?
MSDN: The current position is neither used nor updated by Rectangle. */
return ret;
}
ULONG_PTR
APIENTRY
NtGdiPolyPolyDraw( IN HDC hDC,
IN PPOINT UnsafePoints,
IN PULONG UnsafeCounts,
IN ULONG Count,
IN INT iFunc )
{
DC *dc;
PVOID pTemp;
LPPOINT SafePoints;
PULONG SafeCounts;
NTSTATUS Status = STATUS_SUCCESS;
BOOL Ret = TRUE;
ULONG nPoints = 0, nMaxPoints = 0, nInvalid = 0, i;
if (!UnsafePoints || !UnsafeCounts ||
Count == 0 || iFunc == 0 || iFunc > GdiPolyPolyRgn)
{
/* Windows doesn't set last error */
return FALSE;
}
_SEH2_TRY
{
ProbeForRead(UnsafePoints, Count * sizeof(POINT), 1);
ProbeForRead(UnsafeCounts, Count * sizeof(ULONG), 1);
/* Count points and validate poligons */
for (i = 0; i < Count; i++)
{
if (UnsafeCounts[i] < 2)
{
nInvalid++;
}
nPoints += UnsafeCounts[i];
nMaxPoints = max(nMaxPoints, UnsafeCounts[i]);
}
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
Status = _SEH2_GetExceptionCode();
}
_SEH2_END;
if (!NT_SUCCESS(Status))
{
/* Windows doesn't set last error */
return FALSE;
}
if (nPoints == 0 || nPoints < nMaxPoints)
{
/* If all polygon counts are zero, or we have overflow,
return without setting a last error code. */
return FALSE;
}
if (nInvalid != 0)
{
/* If at least one poly count is 0 or 1, fail */
EngSetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
/* Allocate one buffer for both counts and points */
pTemp = ExAllocatePoolWithTag(PagedPool,
Count * sizeof(ULONG) + nPoints * sizeof(POINT),
TAG_SHAPE);
if (!pTemp)
{
EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
return FALSE;
}
SafeCounts = pTemp;
SafePoints = (PVOID)(SafeCounts + Count);
_SEH2_TRY
{
/* Pointers already probed! */
RtlCopyMemory(SafeCounts, UnsafeCounts, Count * sizeof(ULONG));
RtlCopyMemory(SafePoints, UnsafePoints, nPoints * sizeof(POINT));
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
Status = _SEH2_GetExceptionCode();
}
_SEH2_END;
if (!NT_SUCCESS(Status))
{
ExFreePoolWithTag(pTemp, TAG_SHAPE);
return FALSE;
}
/* Special handling for GdiPolyPolyRgn */
if (iFunc == GdiPolyPolyRgn)
{
HRGN hRgn;
hRgn = IntCreatePolyPolygonRgn(SafePoints, SafeCounts, Count, (INT_PTR)hDC);
ExFreePoolWithTag(pTemp, TAG_SHAPE);
return (ULONG_PTR)hRgn;
}
dc = DC_LockDc(hDC);
if (!dc)
{
EngSetLastError(ERROR_INVALID_HANDLE);
ExFreePoolWithTag(pTemp, TAG_SHAPE);
return FALSE;
}
if (dc->dctype == DC_TYPE_INFO)
{
DC_UnlockDc(dc);
ExFreePoolWithTag(pTemp, TAG_SHAPE);
/* Yes, Windows really returns TRUE in this case */
return TRUE;
}
DC_vPrepareDCsForBlit(dc, dc->rosdc.CombinedClip->rclBounds,
NULL, dc->rosdc.CombinedClip->rclBounds);
if (dc->pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
DC_vUpdateFillBrush(dc);
if (dc->pdcattr->ulDirty_ & (DIRTY_LINE | DC_PEN_DIRTY))
DC_vUpdateLineBrush(dc);
/* Perform the actual work */
switch (iFunc)
{
case GdiPolyPolygon:
Ret = IntGdiPolyPolygon(dc, SafePoints, SafeCounts, Count);
break;
case GdiPolyPolyLine:
Ret = IntGdiPolyPolyline(dc, SafePoints, SafeCounts, Count);
break;
case GdiPolyBezier:
Ret = IntGdiPolyBezier(dc, SafePoints, *SafeCounts);
break;
case GdiPolyLineTo:
Ret = IntGdiPolylineTo(dc, SafePoints, *SafeCounts);
break;
case GdiPolyBezierTo:
Ret = IntGdiPolyBezierTo(dc, SafePoints, *SafeCounts);
break;
default:
EngSetLastError(ERROR_INVALID_PARAMETER);
Ret = FALSE;
}
/* Cleanup and return */
DC_vFinishBlit(dc, NULL);
DC_UnlockDc(dc);
ExFreePoolWithTag(pTemp, TAG_SHAPE);
return (ULONG_PTR)Ret;
}
BOOL APIENTRY
NtGdiEllipse(
HDC hDC,
int Left,
int Top,
int Right,
int Bottom)
{
PDC dc;
PDC_ATTR pdcattr;
RECTL RectBounds;
PBRUSH pbrush;
BOOL ret = TRUE;
LONG PenWidth, PenOrigWidth;
LONG RadiusX, RadiusY, CenterX, CenterY;
PBRUSH pFillBrushObj;
BRUSH tmpFillBrushObj;
if ((Left == Right) || (Top == Bottom)) return TRUE;
dc = DC_LockDc(hDC);
if (dc == NULL)
{
EngSetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
if (dc->dctype == DC_TYPE_INFO)
{
DC_UnlockDc(dc);
/* Yes, Windows really returns TRUE in this case */
return TRUE;
}
if (PATH_IsPathOpen(dc->dclevel))
{
ret = PATH_Ellipse(dc, Left, Top, Right, Bottom);
DC_UnlockDc(dc);
return ret;
}
if (Right < Left)
{
INT tmp = Right; Right = Left; Left = tmp;
}
if (Bottom < Top)
{
INT tmp = Bottom; Bottom = Top; Top = tmp;
}
pdcattr = dc->pdcattr;
if (pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
DC_vUpdateFillBrush(dc);
if (pdcattr->ulDirty_ & (DIRTY_LINE | DC_PEN_DIRTY))
DC_vUpdateLineBrush(dc);
pbrush = PEN_ShareLockPen(pdcattr->hpen);
if (!pbrush)
{
DPRINT1("Ellipse Fail 1\n");
DC_UnlockDc(dc);
EngSetLastError(ERROR_INTERNAL_ERROR);
return FALSE;
}
PenOrigWidth = PenWidth = pbrush->ptPenWidth.x;
if (pbrush->ulPenStyle == PS_NULL) PenWidth = 0;
if (pbrush->ulPenStyle == PS_INSIDEFRAME)
{
if (2*PenWidth > (Right - Left)) PenWidth = (Right -Left + 1)/2;
if (2*PenWidth > (Bottom - Top)) PenWidth = (Bottom -Top + 1)/2;
Left += PenWidth / 2;
Right -= (PenWidth - 1) / 2;
Top += PenWidth / 2;
Bottom -= (PenWidth - 1) / 2;
}
if (!PenWidth) PenWidth = 1;
pbrush->ptPenWidth.x = PenWidth;
RectBounds.left = Left;
RectBounds.right = Right;
RectBounds.top = Top;
RectBounds.bottom = Bottom;
IntLPtoDP(dc, (LPPOINT)&RectBounds, 2);
RectBounds.left += dc->ptlDCOrig.x;
RectBounds.right += dc->ptlDCOrig.x;
RectBounds.top += dc->ptlDCOrig.y;
RectBounds.bottom += dc->ptlDCOrig.y;
// Setup for dynamic width and height.
RadiusX = max((RectBounds.right - RectBounds.left) / 2, 2); // Needs room
RadiusY = max((RectBounds.bottom - RectBounds.top) / 2, 2);
CenterX = (RectBounds.right + RectBounds.left) / 2;
CenterY = (RectBounds.bottom + RectBounds.top) / 2;
DPRINT("Ellipse 1: Left: %d, Top: %d, Right: %d, Bottom: %d\n",
RectBounds.left,RectBounds.top,RectBounds.right,RectBounds.bottom);
DPRINT("Ellipse 2: XLeft: %d, YLeft: %d, Width: %d, Height: %d\n",
CenterX - RadiusX, CenterY + RadiusY, RadiusX*2, RadiusY*2);
pFillBrushObj = BRUSH_ShareLockBrush(pdcattr->hbrush);
if (NULL == pFillBrushObj)
{
DPRINT1("FillEllipse Fail\n");
EngSetLastError(ERROR_INTERNAL_ERROR);
ret = FALSE;
}
else
{
RtlCopyMemory(&tmpFillBrushObj, pFillBrushObj, sizeof(tmpFillBrushObj));
//tmpFillBrushObj.ptOrigin.x += RectBounds.left - Left;
//tmpFillBrushObj.ptOrigin.y += RectBounds.top - Top;
tmpFillBrushObj.ptOrigin.x += dc->ptlDCOrig.x;
tmpFillBrushObj.ptOrigin.y += dc->ptlDCOrig.y;
DC_vPrepareDCsForBlit(dc, RectBounds, NULL, RectBounds);
ret = IntFillEllipse( dc,
CenterX - RadiusX,
CenterY - RadiusY,
RadiusX*2, // Width
RadiusY*2, // Height
&tmpFillBrushObj);
BRUSH_ShareUnlockBrush(pFillBrushObj);
if (ret)
{
ret = IntDrawEllipse( dc,
CenterX - RadiusX,
CenterY - RadiusY,
RadiusX*2, // Width
RadiusY*2, // Height
pbrush);
}
DC_vFinishBlit(dc, NULL);
}
pbrush->ptPenWidth.x = PenOrigWidth;
PEN_ShareUnlockPen(pbrush);
DC_UnlockDc(dc);
DPRINT("Ellipse Exit.\n");
return ret;
}
BOOL APIENTRY
NtGdiExtFloodFill(
HDC hDC,
INT XStart,
INT YStart,
COLORREF Color,
UINT FillType)
{
PDC dc;
PDC_ATTR pdcattr;
SURFACE *psurf = NULL;
EXLATEOBJ exlo;
BOOL Ret = FALSE;
RECTL DestRect;
POINTL Pt;
ULONG ConvColor;
dc = DC_LockDc(hDC);
if (!dc)
{
EngSetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
if (dc->dctype == DC_TYPE_INFO)
{
DC_UnlockDc(dc);
/* Yes, Windows really returns TRUE in this case */
return TRUE;
}
pdcattr = dc->pdcattr;
if (pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
DC_vUpdateFillBrush(dc);
if (pdcattr->ulDirty_ & (DIRTY_LINE | DC_PEN_DIRTY))
DC_vUpdateLineBrush(dc);
Pt.x = XStart;
Pt.y = YStart;
IntLPtoDP(dc, (LPPOINT)&Pt, 1);
Ret = NtGdiPtInRegion(dc->rosdc.hGCClipRgn, Pt.x, Pt.y);
if (Ret)
IntGdiGetRgnBox(dc->rosdc.hGCClipRgn,(LPRECT)&DestRect);
else
goto cleanup;
DC_vPrepareDCsForBlit(dc, DestRect, NULL, DestRect);
psurf = dc->dclevel.pSurface;
if (!psurf)
{
Ret = FALSE;
goto cleanup;
}
EXLATEOBJ_vInitialize(&exlo, &gpalRGB, psurf->ppal, 0, 0xffffff, 0);
/* Only solid fills supported for now
* How to support pattern brushes and non standard surfaces (not offering dib functions):
* Version a (most likely slow): call DrvPatBlt for every pixel
* Version b: create a flood mask and let MaskBlt blit a masked brush */
ConvColor = XLATEOBJ_iXlate(&exlo.xlo, Color);
Ret = DIB_XXBPP_FloodFillSolid(&psurf->SurfObj, &dc->eboFill.BrushObject, &DestRect, &Pt, ConvColor, FillType);
EXLATEOBJ_vCleanup(&exlo);
cleanup:
DC_vFinishBlit(dc, NULL);
DC_UnlockDc(dc);
return Ret;
}
BOOL FASTCALL
IntPatBlt(
PDC pdc,
INT XLeft,
INT YLeft,
INT Width,
INT Height,
DWORD dwRop,
PEBRUSHOBJ pebo)
{
RECTL DestRect;
SURFACE *psurf;
POINTL BrushOrigin;
BOOL ret;
PBRUSH pbrush;
ASSERT(pebo);
pbrush = pebo->pbrush;
ASSERT(pbrush);
FIXUP_ROP(dwRop);
if (pbrush->flAttrs & BR_IS_NULL)
{
return TRUE;
}
if (Width > 0)
{
DestRect.left = XLeft;
DestRect.right = XLeft + Width;
}
else
{
DestRect.left = XLeft + Width + 1;
DestRect.right = XLeft + 1;
}
if (Height > 0)
{
DestRect.top = YLeft;
DestRect.bottom = YLeft + Height;
}
else
{
DestRect.top = YLeft + Height + 1;
DestRect.bottom = YLeft + 1;
}
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;
#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,
&pdc->co.ClipObj,
NULL,
&DestRect,
NULL,
NULL,
&pebo->BrushObject,
&BrushOrigin,
ROP_TO_ROP4(dwRop));
DC_vFinishBlit(pdc, NULL);
return ret;
}
BOOL APIENTRY
GreStretchBltMask(
HDC hDCDest,
INT XOriginDest,
INT YOriginDest,
INT WidthDest,
INT HeightDest,
HDC hDCSrc,
INT XOriginSrc,
INT YOriginSrc,
INT WidthSrc,
INT HeightSrc,
DWORD ROP,
IN DWORD dwBackColor,
HDC hDCMask,
INT XOriginMask,
INT YOriginMask)
{
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;
FIXUP_ROP(ROP);
UsesSource = ROP_USES_SOURCE(ROP);
UsesMask = ROP_USES_MASK(ROP);
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 == DC_TYPE_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 == DC_TYPE_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;
}
}
pdcattr = DCDest->pdcattr;
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;
SourceRect.left = XOriginSrc;
SourceRect.top = YOriginSrc;
SourceRect.right = XOriginSrc+WidthSrc;
SourceRect.bottom = YOriginSrc+HeightSrc;
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;
}
/* Perform the bitblt operation */
Status = IntEngStretchBlt(&BitmapDest->SurfObj,
BitmapSrc ? &BitmapSrc->SurfObj : NULL,
BitmapMask ? &BitmapMask->SurfObj : NULL,
&DCDest->co.ClipObj,
XlateObj,
&DCDest->dclevel.ca,
&DestRect,
&SourceRect,
BitmapMask ? &MaskPoint : NULL,
&DCDest->eboFill.BrushObject,
&BrushOrigin,
ROP_TO_ROP4(ROP));
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;
}
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 dwRop,
IN DWORD crBackColor)
{
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;
FIXUP_ROP(dwRop); // FIXME: why do we need this???
//DPRINT1("dwRop : 0x%08x\n", dwRop);
UsesSource = ROP_USES_SOURCE(dwRop);
if (!hdcDest || (UsesSource && !hdcSrc))
{
EngSetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
/* Check if we need a mask and have a mask bitmap */
if (ROP_USES_MASK(dwRop) && (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 NtGdiAlphaBlend\n", hdcDest, hdcSrc);
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 NtGdiBitBlt\n", hdcDest);
return FALSE;
}
if (DCDest->dctype == DC_TYPE_INFO)
{
if(DCSrc) DC_UnlockDc(DCSrc);
DC_UnlockDc(DCDest);
/* Yes, Windows really returns TRUE in this case */
return TRUE;
}
if (UsesSource)
{
ASSERT(DCSrc);
if (DCSrc->dctype == DC_TYPE_INFO)
{
DC_UnlockDc(DCDest);
DC_UnlockDc(DCSrc);
/* Yes, Windows really returns TRUE in this case */
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;
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. */
if (UsesSource)
{
EXLATEOBJ_vInitXlateFromDCs(&exlo, DCSrc, DCDest);
XlateObj = &exlo.xlo;
}
/* Perform the bitblt operation */
Status = IntEngBitBlt(&BitmapDest->SurfObj,
BitmapSrc ? &BitmapSrc->SurfObj : NULL,
psurfMask ? &psurfMask->SurfObj : NULL,
&DCDest->co.ClipObj,
XlateObj,
&DestRect,
&SourcePoint,
&MaskPoint,
&DCDest->eboFill.BrushObject,
&DCDest->dclevel.pbrFill->ptOrigin,
ROP_TO_ROP4(dwRop));
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;
}
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)
{
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 == DC_TYPE_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;
/* 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,
&DCDest->co.ClipObj, &exlo.xlo, &rcDest, &rcSrc,
TransparentColor, 0);
EXLATEOBJ_vCleanup(&exlo);
done:
DC_vFinishBlit(DCDest, DCSrc);
GDIOBJ_vUnlockObject(&DCDest->BaseObject);
GDIOBJ_vUnlockObject(&DCSrc->BaseObject);
return Ret;
}
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)
{
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 == DC_TYPE_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;
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,
&DCDest->co.ClipObj,
&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;
}
BOOL APIENTRY
NtGdiExtFloodFill(
HDC hDC,
INT XStart,
INT YStart,
COLORREF Color,
UINT FillType)
{
PDC dc;
#if 0
PDC_ATTR pdcattr;
#endif
SURFACE *psurf;
EXLATEOBJ exlo;
BOOL Ret = FALSE;
RECTL DestRect;
POINTL Pt;
ULONG ConvColor;
dc = DC_LockDc(hDC);
if (!dc)
{
EngSetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
if (dc->dctype == DC_TYPE_INFO)
{
DC_UnlockDc(dc);
/* Yes, Windows really returns TRUE in this case */
return TRUE;
}
if (!dc->dclevel.pSurface)
{
Ret = FALSE;
goto cleanup;
}
#if 0
pdcattr = dc->pdcattr;
#endif
Pt.x = XStart;
Pt.y = YStart;
IntLPtoDP(dc, (LPPOINT)&Pt, 1);
DC_vPrepareDCsForBlit(dc, &DestRect, NULL, NULL);
/// FIXME: what about prgnVIS? And what about REAL clipping?
psurf = dc->dclevel.pSurface;
if (dc->prgnRao)
{
Ret = REGION_PtInRegion(dc->prgnRao, Pt.x, Pt.y);
if (Ret)
REGION_GetRgnBox(dc->prgnRao, (LPRECT)&DestRect);
else
{
DC_vFinishBlit(dc, NULL);
goto cleanup;
}
}
else
{
RECTL_vSetRect(&DestRect, 0, 0, psurf->SurfObj.sizlBitmap.cx, psurf->SurfObj.sizlBitmap.cy);
}
EXLATEOBJ_vInitialize(&exlo, &gpalRGB, psurf->ppal, 0, 0xffffff, 0);
/* Only solid fills supported for now
* How to support pattern brushes and non standard surfaces (not offering dib functions):
* Version a (most likely slow): call DrvPatBlt for every pixel
* Version b: create a flood mask and let MaskBlt blit a masked brush */
ConvColor = XLATEOBJ_iXlate(&exlo.xlo, Color);
Ret = DIB_XXBPP_FloodFillSolid(&psurf->SurfObj, &dc->eboFill.BrushObject, &DestRect, &Pt, ConvColor, FillType);
DC_vFinishBlit(dc, NULL);
EXLATEOBJ_vCleanup(&exlo);
cleanup:
DC_UnlockDc(dc);
return Ret;
}
BOOL FASTCALL
IntPatBlt(
PDC pdc,
INT XLeft,
INT YLeft,
INT Width,
INT Height,
DWORD dwRop,
PBRUSH pbrush)
{
RECTL DestRect;
SURFACE *psurf;
EBRUSHOBJ eboFill ;
POINTL BrushOrigin;
BOOL ret;
ASSERT(pbrush);
FIXUP_ROP(dwRop);
if (pbrush->flAttrs & GDIBRUSH_IS_NULL)
{
return TRUE;
}
if (Width > 0)
{
DestRect.left = XLeft;
DestRect.right = XLeft + Width;
}
else
{
DestRect.left = XLeft + Width + 1;
DestRect.right = XLeft + 1;
}
if (Height > 0)
{
DestRect.top = YLeft;
DestRect.bottom = YLeft + Height;
}
else
{
DestRect.top = YLeft + Height + 1;
DestRect.bottom = YLeft + 1;
}
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;
#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, DestRect);
psurf = pdc->dclevel.pSurface;
if (pdc->pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
DC_vUpdateFillBrush(pdc);
EBRUSHOBJ_vInit(&eboFill, pbrush, pdc);
ret = IntEngBitBlt(
&psurf->SurfObj,
NULL,
NULL,
pdc->rosdc.CombinedClip,
NULL,
&DestRect,
NULL,
NULL,
&eboFill.BrushObject,
&BrushOrigin,
ROP_TO_ROP4(dwRop));
DC_vFinishBlit(pdc, NULL);
EBRUSHOBJ_vCleanup(&eboFill);
return ret;
}
/* Mostly inspired from wine code.
* We use low level functions because:
* - at this point, the icon bitmap could have a different bit depth than the DC,
* making it thus impossible to use NtCreateCompatibleDC and selecting the bitmap.
* This happens after a mode setting change.
* - it avoids massive GDI objects locking when only the destination surface needs it.
* - It makes (small) performance gains.
*/
BOOL
UserDrawIconEx(
HDC hDc,
INT xLeft,
INT yTop,
PCURICON_OBJECT pIcon,
INT cxWidth,
INT cyHeight,
UINT istepIfAniCur,
HBRUSH hbrFlickerFreeDraw,
UINT diFlags)
{
PSURFACE psurfDest, psurfMask, psurfColor; //, psurfOffScreen = NULL;
PDC pdc = NULL;
BOOL Ret = FALSE;
HBITMAP hbmMask, hbmColor, hbmAlpha;
BOOL bOffScreen;
RECTL rcDest, rcSrc;
CLIPOBJ* pdcClipObj = NULL;
EXLATEOBJ exlo;
/* Stupid case */
if((diFlags & DI_NORMAL) == 0)
{
ERR("DrawIconEx called without mask or color bitmap to draw.\n");
return FALSE;
}
if (pIcon->CURSORF_flags & CURSORF_ACON)
{
ACON* pAcon = (ACON*)pIcon;
if(istepIfAniCur >= pAcon->cicur)
{
ERR("NtUserDrawIconEx: istepIfAniCur too big!\n");
return FALSE;
}
pIcon = pAcon->aspcur[pAcon->aicur[istepIfAniCur]];
}
hbmMask = pIcon->hbmMask;
hbmColor = pIcon->hbmColor;
hbmAlpha = pIcon->hbmAlpha;
/*
* Get our objects.
* Shared locks are enough, we are only reading those bitmaps
*/
psurfMask = SURFACE_ShareLockSurface(hbmMask);
if(psurfMask == NULL)
{
ERR("Unable to lock the mask surface.\n");
return FALSE;
}
/* Color bitmap is not mandatory */
if(hbmColor == NULL)
{
/* But then the mask bitmap must have the information in it's bottom half */
ASSERT(psurfMask->SurfObj.sizlBitmap.cy == 2*pIcon->cy);
psurfColor = NULL;
}
else if ((psurfColor = SURFACE_ShareLockSurface(hbmColor)) == NULL)
{
ERR("Unable to lock the color bitmap.\n");
SURFACE_ShareUnlockSurface(psurfMask);
return FALSE;
}
pdc = DC_LockDc(hDc);
if(!pdc)
{
ERR("Could not lock the destination DC.\n");
SURFACE_ShareUnlockSurface(psurfMask);
if(psurfColor) SURFACE_ShareUnlockSurface(psurfColor);
return FALSE;
}
/* Calculate destination rectangle */
RECTL_vSetRect(&rcDest, xLeft, yTop, xLeft + cxWidth, yTop + cyHeight);
IntLPtoDP(pdc, (LPPOINT)&rcDest, 2);
RECTL_vOffsetRect(&rcDest, pdc->ptlDCOrig.x, pdc->ptlDCOrig.y);
/* Prepare the underlying surface */
DC_vPrepareDCsForBlit(pdc, rcDest, NULL, rcDest);
/* We now have our destination surface and rectangle */
psurfDest = pdc->dclevel.pSurface;
if(psurfDest == NULL)
{
/* Empty DC */
DC_vFinishBlit(pdc, NULL);
DC_UnlockDc(pdc);
SURFACE_ShareUnlockSurface(psurfMask);
if(psurfColor) SURFACE_ShareUnlockSurface(psurfColor);
return FALSE;
}
/* Set source rect */
RECTL_vSetRect(&rcSrc, 0, 0, pIcon->cx, pIcon->cy);
/* Fix width parameter, if needed */
if (!cxWidth)
{
if(diFlags & DI_DEFAULTSIZE)
cxWidth = is_icon(pIcon) ?
UserGetSystemMetrics(SM_CXICON) : UserGetSystemMetrics(SM_CXCURSOR);
else
cxWidth = pIcon->cx;
}
/* Fix height parameter, if needed */
if (!cyHeight)
{
if(diFlags & DI_DEFAULTSIZE)
cyHeight = is_icon(pIcon) ?
UserGetSystemMetrics(SM_CYICON) : UserGetSystemMetrics(SM_CYCURSOR);
else
cyHeight = pIcon->cy;
}
/* Should we render off-screen? */
bOffScreen = hbrFlickerFreeDraw &&
(GDI_HANDLE_GET_TYPE(hbrFlickerFreeDraw) == GDI_OBJECT_TYPE_BRUSH);
if (bOffScreen)
{
/* Yes: Allocate and paint the offscreen surface */
EBRUSHOBJ eboFill;
PBRUSH pbrush = BRUSH_ShareLockBrush(hbrFlickerFreeDraw);
TRACE("Performing off-screen rendering.\n");
if(!pbrush)
{
ERR("Failed to get brush object.\n");
goto Cleanup;
}
#if 0 //We lock the hdc surface during the whole function it makes no sense to use an offscreen surface for "flicker free" drawing
psurfOffScreen = SURFACE_AllocSurface(STYPE_BITMAP,
cxWidth, cyHeight, psurfDest->SurfObj.iBitmapFormat,
0, 0, NULL);
if(!psurfOffScreen)
{
ERR("Failed to allocate the off-screen surface.\n");
BRUSH_ShareUnlockBrush(pbrush);
goto Cleanup;
}
/* Paint the brush */
EBRUSHOBJ_vInit(&eboFill, pbrush, psurfOffScreen, 0x00FFFFFF, 0, NULL);
RECTL_vSetRect(&rcDest, 0, 0, cxWidth, cyHeight);
Ret = IntEngBitBlt(&psurfOffScreen->SurfObj,
NULL,
NULL,
NULL,
NULL,
&rcDest,
NULL,
NULL,
&eboFill.BrushObject,
&pbrush->ptOrigin,
ROP4_PATCOPY);
/* Clean up everything */
EBRUSHOBJ_vCleanup(&eboFill);
BRUSH_ShareUnlockBrush(pbrush);
if(!Ret)
{
ERR("Failed to paint the off-screen surface.\n");
goto Cleanup;
}
/* We now have our destination surface */
psurfDest = psurfOffScreen;
#else
pdcClipObj = pdc->rosdc.CombinedClip;
/* Paint the brush */
EBRUSHOBJ_vInit(&eboFill, pbrush, psurfDest, 0x00FFFFFF, 0, NULL);
Ret = IntEngBitBlt(&psurfDest->SurfObj,
NULL,
NULL,
pdcClipObj,
NULL,
&rcDest,
NULL,
NULL,
&eboFill.BrushObject,
&pbrush->ptOrigin,
ROP4_PATCOPY);
/* Clean up everything */
EBRUSHOBJ_vCleanup(&eboFill);
BRUSH_ShareUnlockBrush(pbrush);
if(!Ret)
{
ERR("Failed to paint the off-screen surface.\n");
goto Cleanup;
}
#endif
}
else
{
/* We directly draw to the DC */
TRACE("Performing on screen rendering.\n");
pdcClipObj = pdc->rosdc.CombinedClip;
// psurfOffScreen = NULL;
}
/* Now do the rendering */
if(hbmAlpha && ((diFlags & DI_NORMAL) == DI_NORMAL))
{
BLENDOBJ blendobj = { {AC_SRC_OVER, 0, 255, AC_SRC_ALPHA } };
PSURFACE psurf = NULL;
psurf = SURFACE_ShareLockSurface(hbmAlpha);
if(!psurf)
{
ERR("SURFACE_LockSurface failed!\n");
goto NoAlpha;
}
/* Initialize color translation object */
EXLATEOBJ_vInitialize(&exlo, psurf->ppal, psurfDest->ppal, 0xFFFFFFFF, 0xFFFFFFFF, 0);
/* Now do it */
Ret = IntEngAlphaBlend(&psurfDest->SurfObj,
&psurf->SurfObj,
pdcClipObj,
&exlo.xlo,
&rcDest,
&rcSrc,
&blendobj);
EXLATEOBJ_vCleanup(&exlo);
SURFACE_ShareUnlockSurface(psurf);
if(Ret) goto done;
ERR("NtGdiAlphaBlend failed!\n");
}
NoAlpha:
if (diFlags & DI_MASK)
{
DWORD rop4 = (diFlags & DI_IMAGE) ? ROP4_SRCAND : ROP4_SRCCOPY;
EXLATEOBJ_vInitSrcMonoXlate(&exlo, psurfDest->ppal, 0x00FFFFFF, 0);
Ret = IntEngStretchBlt(&psurfDest->SurfObj,
&psurfMask->SurfObj,
NULL,
pdcClipObj,
&exlo.xlo,
NULL,
&rcDest,
&rcSrc,
NULL,
NULL,
NULL,
rop4);
EXLATEOBJ_vCleanup(&exlo);
if(!Ret)
{
ERR("Failed to mask the bitmap data.\n");
goto Cleanup;
}
}
if(diFlags & DI_IMAGE)
{
if (psurfColor)
{
DWORD rop4 = (diFlags & DI_MASK) ? ROP4_SRCINVERT : ROP4_SRCCOPY ;
EXLATEOBJ_vInitialize(&exlo, psurfColor->ppal, psurfDest->ppal, 0x00FFFFFF, 0x00FFFFFF, 0);
Ret = IntEngStretchBlt(&psurfDest->SurfObj,
&psurfColor->SurfObj,
NULL,
pdcClipObj,
&exlo.xlo,
NULL,
&rcDest,
&rcSrc,
NULL,
NULL,
NULL,
rop4);
EXLATEOBJ_vCleanup(&exlo);
if(!Ret)
{
ERR("Failed to render the icon bitmap.\n");
goto Cleanup;
}
}
else
{
/* Mask bitmap holds the information in its bottom half */
DWORD rop4 = (diFlags & DI_MASK) ? ROP4_SRCINVERT : ROP4_SRCCOPY;
RECTL_vOffsetRect(&rcSrc, 0, pIcon->cy);
EXLATEOBJ_vInitSrcMonoXlate(&exlo, psurfDest->ppal, 0x00FFFFFF, 0);
Ret = IntEngStretchBlt(&psurfDest->SurfObj,
&psurfMask->SurfObj,
NULL,
pdcClipObj,
&exlo.xlo,
NULL,
&rcDest,
&rcSrc,
NULL,
NULL,
NULL,
rop4);
EXLATEOBJ_vCleanup(&exlo);
if(!Ret)
{
ERR("Failed to render the icon bitmap.\n");
goto Cleanup;
}
}
}
done:
#if 0
/* We're done. Was it a double buffered draw ? */
if(bOffScreen)
{
/* Yes. Draw it back to our DC */
POINTL ptSrc = {0, 0};
/* Calculate destination rectangle */
RECTL_vSetRect(&rcDest, xLeft, yTop, xLeft + cxWidth, yTop + cyHeight);
IntLPtoDP(pdc, (LPPOINT)&rcDest, 2);
RECTL_vOffsetRect(&rcDest, pdc->ptlDCOrig.x, pdc->ptlDCOrig.y);
/* Get the clip object */
pdcClipObj = pdc->rosdc.CombinedClip;
/* We now have our destination surface and rectangle */
psurfDest = pdc->dclevel.pSurface;
/* Color translation */
EXLATEOBJ_vInitialize(&exlo, psurfOffScreen->ppal, psurfDest->ppal, 0x00FFFFFF, 0x00FFFFFF, 0);
/* Blt it! */
Ret = IntEngBitBlt(&psurfDest->SurfObj,
&psurfOffScreen->SurfObj,
NULL,
pdcClipObj,
&exlo.xlo,
&rcDest,
&ptSrc,
NULL,
NULL,
NULL,
ROP4_SRCCOPY);
EXLATEOBJ_vCleanup(&exlo);
}
#endif
Cleanup:
if(pdc)
{
DC_vFinishBlit(pdc, NULL);
DC_UnlockDc(pdc);
}
#if 0
/* Delete off screen rendering surface */
if(psurfOffScreen)
GDIOBJ_vDeleteObject(&psurfOffScreen->BaseObject);
#endif
/* Unlock other surfaces */
SURFACE_ShareUnlockSurface(psurfMask);
if(psurfColor) SURFACE_ShareUnlockSurface(psurfColor);
return Ret;
}