BOOL
NTAPI
DC_Cleanup(PVOID ObjectBody)
{
PDC pdc = (PDC)ObjectBody;
/* Free DC_ATTR */
DC_vFreeDcAttr(pdc);
/* Delete saved DCs */
DC_vRestoreDC(pdc, 1);
/* Deselect dc objects */
DC_vSelectSurface(pdc, NULL);
DC_vSelectFillBrush(pdc, NULL);
DC_vSelectLineBrush(pdc, NULL);
DC_vSelectPalette(pdc, NULL);
/* Cleanup the dc brushes */
EBRUSHOBJ_vCleanup(&pdc->eboFill);
EBRUSHOBJ_vCleanup(&pdc->eboLine);
EBRUSHOBJ_vCleanup(&pdc->eboText);
EBRUSHOBJ_vCleanup(&pdc->eboBackground);
/* Release font */
LFONT_ShareUnlockFont(pdc->dclevel.plfnt);
/* Free regions */
if (pdc->rosdc.hClipRgn && GreIsHandleValid(pdc->rosdc.hClipRgn))
GreDeleteObject(pdc->rosdc.hClipRgn);
if (pdc->prgnVis)
{
REGION_Delete(pdc->prgnVis);
}
if (pdc->rosdc.hGCClipRgn && GreIsHandleValid(pdc->rosdc.hGCClipRgn))
{
GreDeleteObject(pdc->rosdc.hGCClipRgn);
}
if (NULL != pdc->rosdc.CombinedClip)
IntEngDeleteClipRegion(pdc->rosdc.CombinedClip);
PATH_Delete(pdc->dclevel.hPath);
if(pdc->dclevel.pSurface)
SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
PDEVOBJ_vRelease(pdc->ppdev) ;
return TRUE;
}
VOID
NTAPI
DC_vCleanup(PVOID ObjectBody)
{
PDC pdc = (PDC)ObjectBody;
/* Free DC_ATTR */
DC_vFreeDcAttr(pdc);
/* Delete saved DCs */
DC_vRestoreDC(pdc, 1);
/* Deselect dc objects */
DC_vSelectSurface(pdc, NULL);
DC_vSelectFillBrush(pdc, NULL);
DC_vSelectLineBrush(pdc, NULL);
DC_vSelectPalette(pdc, NULL);
/* Cleanup the dc brushes */
EBRUSHOBJ_vCleanup(&pdc->eboFill);
EBRUSHOBJ_vCleanup(&pdc->eboLine);
EBRUSHOBJ_vCleanup(&pdc->eboText);
EBRUSHOBJ_vCleanup(&pdc->eboBackground);
/* Release font */
LFONT_ShareUnlockFont(pdc->dclevel.plfnt);
/* Free regions */
if (pdc->dclevel.prgnClip)
REGION_Delete(pdc->dclevel.prgnClip);
if (pdc->dclevel.prgnMeta)
REGION_Delete(pdc->dclevel.prgnMeta);
if (pdc->prgnVis)
REGION_Delete(pdc->prgnVis);
if (pdc->prgnRao)
REGION_Delete(pdc->prgnRao);
if (pdc->prgnAPI)
REGION_Delete(pdc->prgnAPI);
/* Free CLIPOBJ resources */
IntEngFreeClipResources(&pdc->co);
PATH_Delete(pdc->dclevel.hPath);
if(pdc->dclevel.pSurface)
SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
PDEVOBJ_vRelease(pdc->ppdev) ;
}
BOOL FASTCALL
IntGdiPolyPatBlt(
HDC hDC,
DWORD dwRop,
PPATRECT pRects,
INT cRects,
ULONG Reserved)
{
INT i;
PBRUSH pbrush;
PDC pdc;
EBRUSHOBJ eboFill;
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;
}
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;
}
VOID
NTAPI
EBRUSHOBJ_vUpdateFromDC(
EBRUSHOBJ *pebo,
PBRUSH pbrush,
PDC pdc)
{
/* Cleanup the brush */
EBRUSHOBJ_vCleanup(pebo);
/* Reinitialize */
EBRUSHOBJ_vInitFromDC(pebo, pbrush, pdc);
}
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;
}
