* COPYRIGHT: GNU GPL, See COPYING in the top level directory
* PROJECT: ReactOS Win32k subsystem
* PURPOSE: Clip region functions
- * FILE: subsystems/win32/win32k/objects/cliprgn.c
+ * FILE: win32ss/gdi/ntgdi/cliprgn.c
* PROGRAMER: Unknown
*/
#define NDEBUG
#include <debug.h>
-int FASTCALL
-CLIPPING_UpdateGCRegion(DC* Dc)
+VOID
+FASTCALL
+IntGdiReleaseRaoRgn(PDC pDC)
+{
+ INT Index = GDI_HANDLE_GET_INDEX(pDC->BaseObject.hHmgr);
+ PGDI_TABLE_ENTRY Entry = &GdiHandleTable->Entries[Index];
+ pDC->fs |= DC_FLAG_DIRTY_RAO;
+ Entry->Flags |= GDI_ENTRY_VALIDATE_VIS; // Need to validate Vis.
+}
+
+VOID
+FASTCALL
+IntGdiReleaseVisRgn(PDC pDC)
{
- PROSRGNDATA CombinedRegion;
- //HRGN hRgnVis;
- PREGION prgnClip, prgnGCClip;
+ IntGdiReleaseRaoRgn(pDC);
+ REGION_Delete(pDC->prgnVis);
+ pDC->prgnVis = prgnDefault; // Vis can not be NULL!!!
+}
- /* Would prefer this, but the rest of the code sucks... */
- //ASSERT(Dc->rosdc.hGCClipRgn);
- //ASSERT(Dc->rosdc.hClipRgn);
- ASSERT(Dc->prgnVis);
- //hRgnVis = Dc->prgnVis->BaseObject.hHmgr;
+//
+// Updating Vis Region Attribute the for DC Attributes.
+// BTW: This system region has an user attribute for it.
+//
+VOID
+FASTCALL
+UpdateVisRgn(
+ PDC pdc)
+{
+ INT Index = GDI_HANDLE_GET_INDEX(pdc->BaseObject.hHmgr);
+ PGDI_TABLE_ENTRY pEntry = &GdiHandleTable->Entries[Index];
+
+ /* Setup Vis Region Attribute information to User side */
+ pEntry->Flags |= GDI_ENTRY_VALIDATE_VIS;
+ pdc->pdcattr->VisRectRegion.iComplexity = REGION_GetRgnBox(pdc->prgnVis, &pdc->pdcattr->VisRectRegion.Rect);
+ pdc->pdcattr->VisRectRegion.AttrFlags = ATTR_RGN_VALID;
+ pEntry->Flags &= ~GDI_ENTRY_VALIDATE_VIS;
+}
- if (Dc->rosdc.hGCClipRgn == NULL)
- Dc->rosdc.hGCClipRgn = IntSysCreateRectRgn(0, 0, 0, 0);
+//
+// Selecting Vis Region.
+//
+VOID
+FASTCALL
+GdiSelectVisRgn(
+ HDC hdc,
+ PREGION prgn)
+{
+ DC *dc;
- prgnGCClip = REGION_LockRgn(Dc->rosdc.hGCClipRgn);
- ASSERT(prgnGCClip);
+ if (!(dc = DC_LockDc(hdc)))
+ {
+ EngSetLastError(ERROR_INVALID_HANDLE);
+ return;
+ }
- if (Dc->rosdc.hClipRgn == NULL)
- IntGdiCombineRgn(prgnGCClip, Dc->prgnVis, NULL, RGN_COPY);
- else
- {
- prgnClip = REGION_LockRgn(Dc->rosdc.hClipRgn); // FIXME: Locking order, ugh!
- IntGdiCombineRgn(prgnGCClip, Dc->prgnVis, prgnClip, RGN_AND);
- REGION_UnlockRgn(prgnClip);
- }
- REGION_UnlockRgn(prgnGCClip);
+ if (!prgn)
+ {
+ DPRINT1("SVR: Setting NULL Region\n");
+ IntGdiReleaseVisRgn(dc);
+ IntSetDefaultRegion(dc);
+ DC_UnlockDc(dc);
+ return;
+ }
- NtGdiOffsetRgn(Dc->rosdc.hGCClipRgn, Dc->ptlDCOrig.x, Dc->ptlDCOrig.y);
+ dc->fs |= DC_FLAG_DIRTY_RAO;
- if((CombinedRegion = RGNOBJAPI_Lock(Dc->rosdc.hGCClipRgn, NULL)))
- {
- CLIPOBJ *CombinedClip;
+ ASSERT(dc->prgnVis != NULL);
+ ASSERT(prgn != NULL);
- CombinedClip = IntEngCreateClipRegion(CombinedRegion->rdh.nCount,
- CombinedRegion->Buffer,
- &CombinedRegion->rdh.rcBound);
+ REGION_bCopy(dc->prgnVis, prgn);
+ REGION_bOffsetRgn(dc->prgnVis, -dc->ptlDCOrig.x, -dc->ptlDCOrig.y);
- RGNOBJAPI_Unlock(CombinedRegion);
+ DC_UnlockDc(dc);
+}
- if ( !CombinedClip )
- {
- DPRINT1("IntEngCreateClipRegion() failed\n");
- return ERROR;
- }
+_Success_(return!=ERROR)
+int
+FASTCALL
+IntSelectClipRgn(
+ _In_ PDC dc,
+ _In_ PREGION prgn,
+ _In_ int fnMode)
+{
+ int Ret = ERROR;
+ PREGION prgnNClip, prgnOrigClip = dc->dclevel.prgnClip;
+
+ //
+ // No Coping Regions and no intersecting Regions or an User calling w NULL Region or have the Original Clip Region.
+ //
+ if (fnMode != RGN_COPY && (fnMode != RGN_AND || !prgn || prgnOrigClip))
+ {
+ prgnNClip = IntSysCreateRectpRgn(0, 0, 0, 0);
+
+ // Have Original Clip Region.
+ if (prgnOrigClip)
+ {
+ // This will fail on NULL prgn.
+ Ret = IntGdiCombineRgn(prgnNClip, prgnOrigClip, prgn, fnMode);
+
+ if (Ret)
+ {
+ REGION_Delete(prgnOrigClip);
+ dc->dclevel.prgnClip = prgnNClip;
+ IntGdiReleaseRaoRgn(dc);
+ }
+ else
+ REGION_Delete(prgnNClip);
+ }
+ else // NULL Original Clip Region, setup a new one and process mode.
+ {
+ PREGION prgnClip;
+ RECTL rcl;
+ PSURFACE pSurface;
+
+ // See IntSetDefaultRegion.
+
+ rcl.left = 0;
+ rcl.top = 0;
+ rcl.right = dc->dclevel.sizl.cx;
+ rcl.bottom = dc->dclevel.sizl.cy;
+
+ //EngAcquireSemaphoreShared(pdc->ppdev->hsemDevLock);
+ if (dc->ppdev->flFlags & PDEV_META_DEVICE)
+ {
+ pSurface = dc->dclevel.pSurface;
+ if (pSurface && pSurface->flags & PDEV_SURFACE)
+ {
+ rcl.left += dc->ppdev->ptlOrigion.x;
+ rcl.top += dc->ppdev->ptlOrigion.y;
+ rcl.right += dc->ppdev->ptlOrigion.x;
+ rcl.bottom += dc->ppdev->ptlOrigion.y;
+ }
+ }
+ //EngReleaseSemaphore(pdc->ppdev->hsemDevLock);
+
+ rcl.left += dc->ptlDCOrig.x;
+ rcl.top += dc->ptlDCOrig.y;
+ rcl.right += dc->ptlDCOrig.x;
+ rcl.bottom += dc->ptlDCOrig.y;
+
+ prgnClip = IntSysCreateRectpRgnIndirect(&rcl);
+
+ Ret = IntGdiCombineRgn(prgnNClip, prgnClip, prgn, fnMode);
+
+ if (Ret)
+ {
+ dc->dclevel.prgnClip = prgnNClip;
+ IntGdiReleaseRaoRgn(dc);
+ }
+ else
+ REGION_Delete(prgnNClip);
+
+ REGION_Delete(prgnClip);
+ }
+ return Ret;
+ }
- if(Dc->rosdc.CombinedClip != NULL)
- IntEngDeleteClipRegion(Dc->rosdc.CombinedClip);
+ // Fall through to normal RectOS mode.
- Dc->rosdc.CombinedClip = CombinedClip ;
- }
+ //
+ // Handle NULL Region and Original Clip Region.
+ //
+ if (!prgn)
+ {
+ if (prgnOrigClip)
+ {
+ REGION_Delete(dc->dclevel.prgnClip);
+ dc->dclevel.prgnClip = NULL;
+ IntGdiReleaseRaoRgn(dc);
+ }
+ return SIMPLEREGION;
+ }
- return NtGdiOffsetRgn(Dc->rosdc.hGCClipRgn, -Dc->ptlDCOrig.x, -Dc->ptlDCOrig.y);
+ //
+ // Combine the new Clip region with original Clip and caller Region.
+ //
+ if ( prgnOrigClip &&
+ (Ret = IntGdiCombineRgn(prgnOrigClip, prgn, NULL, RGN_COPY)) ) // Clip could fail.
+ {
+ IntGdiReleaseRaoRgn(dc);
+ }
+ else // NULL original Clip, just copy caller region to new.
+ {
+ prgnNClip = IntSysCreateRectpRgn(0, 0, 0, 0);
+ REGION_bCopy(prgnNClip, prgn);
+ Ret = REGION_Complexity(prgnNClip);
+ dc->dclevel.prgnClip = prgnNClip;
+ IntGdiReleaseRaoRgn(dc);
+ }
+ return Ret;
}
-INT FASTCALL
-GdiSelectVisRgn(HDC hdc, HRGN hrgn)
+//
+// Call from Gdi Batch Subsystem.
+//
+// Was setup to just handle RGN_COPY only and return VOID, since this was called from Gdi32.
+// Tested in place of the other, complexity aside.
+//
+
+_Success_(return!=ERROR)
+int
+FASTCALL
+IntGdiExtSelectClipRect(
+ _In_ PDC dc,
+ _In_ PRECTL prcl,
+ _In_ int fnMode)
{
- int retval;
- DC *dc;
- PREGION prgn;
+ int Ret = ERROR;
+ PREGION prgn;
+ RECTL rect;
+ BOOL NoRegion = fnMode & GDIBS_NORECT;
- if (!hrgn)
- {
- EngSetLastError(ERROR_INVALID_PARAMETER);
- return ERROR;
- }
- if (!(dc = DC_LockDc(hdc)))
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return ERROR;
- }
+ fnMode &= ~GDIBS_NORECT;
- dc->fs &= ~DC_FLAG_DIRTY_RAO;
+ if (NoRegion) // NULL Region.
+ {
+ if (fnMode == RGN_COPY)
+ {
+ Ret = IntSelectClipRgn( dc, NULL, RGN_COPY);
- ASSERT (dc->prgnVis != NULL);
+ if (dc->fs & DC_FLAG_DIRTY_RAO)
+ CLIPPING_UpdateGCRegion(dc);
- prgn = RGNOBJAPI_Lock(hrgn, NULL);
- retval = prgn ? IntGdiCombineRgn(dc->prgnVis, prgn, NULL, RGN_COPY) : ERROR;
- RGNOBJAPI_Unlock(prgn);
- if ( retval != ERROR )
- {
- IntGdiOffsetRgn(dc->prgnVis, -dc->ptlDCOrig.x, -dc->ptlDCOrig.y);
- CLIPPING_UpdateGCRegion(dc);
- }
- DC_UnlockDc(dc);
+ if (Ret) // Copy? Return Vis complexity.
+ Ret = REGION_Complexity(dc->prgnVis);
+ }
+ }
+ else // Have a box to build a region with.
+ {
+ if (dc->dclevel.prgnClip)
+ {
+ REGION_GetRgnBox(dc->dclevel.prgnClip, &rect);
+
+ if (prcl->left == rect.left &&
+ prcl->top == rect.top &&
+ prcl->right == rect.right &&
+ prcl->bottom == rect.bottom)
+ {
+ return REGION_Complexity( dc->prgnRao ? dc->prgnRao : dc->prgnVis );
+ }
+ }
- return retval;
-}
+ prgn = IntSysCreateRectpRgnIndirect(prcl);
+
+ Ret = IntSelectClipRgn( dc, prgn, fnMode);
+ if (dc->fs & DC_FLAG_DIRTY_RAO)
+ CLIPPING_UpdateGCRegion(dc);
-int FASTCALL GdiExtSelectClipRgn(PDC dc,
- HRGN hrgn,
- int fnMode)
+ if (Ret) // In this case NtGdiExtSelectClipRgn tests pass.
+ Ret = REGION_Complexity( dc->prgnRao ? dc->prgnRao : dc->prgnVis );
+
+ REGION_Delete(prgn);
+ }
+ return Ret;
+}
+
+_Success_(return!=ERROR)
+int
+FASTCALL
+IntGdiExtSelectClipRgn(
+ _In_ PDC dc,
+ _In_ PREGION prgn,
+ _In_ int fnMode)
{
- // dc->fs &= ~DC_FLAG_DIRTY_RAO;
+ int Ret = ERROR;
- if (!hrgn)
- {
- if (fnMode == RGN_COPY)
+ if (!prgn)
{
- if (dc->rosdc.hClipRgn != NULL)
- {
- GreDeleteObject(dc->rosdc.hClipRgn);
- dc->rosdc.hClipRgn = NULL;
- }
+ if (fnMode == RGN_COPY)
+ {
+ if ((Ret = IntSelectClipRgn( dc, NULL, RGN_COPY)))
+ Ret = REGION_Complexity(dc->prgnVis);
+ }
}
else
{
- EngSetLastError(ERROR_INVALID_PARAMETER);
- return ERROR;
+ if ((Ret = IntSelectClipRgn( dc, prgn, fnMode)))
+ {
+ DPRINT("IntGdiExtSelectClipRgn A %d\n",Ret);
+ // Update the Rao, it must be this way for now.
+ if (dc->fs & DC_FLAG_DIRTY_RAO)
+ CLIPPING_UpdateGCRegion(dc);
+
+ Ret = REGION_Complexity( dc->prgnRao ? dc->prgnRao : dc->prgnVis );
+ DPRINT("IntGdiExtSelectClipRgn B %d\n",Ret);
+ }
}
- }
- else
- {
- if (!dc->rosdc.hClipRgn)
+ return Ret;
+}
+
+int
+APIENTRY
+NtGdiExtSelectClipRgn(
+ HDC hDC,
+ HRGN hrgn,
+ int fnMode)
+{
+ int retval;
+ DC *dc;
+ PREGION prgn;
+
+ if ( fnMode < RGN_AND || fnMode > RGN_COPY )
{
- RECTL rect;
- if(dc->prgnVis)
- {
- REGION_GetRgnBox(dc->prgnVis, &rect);
- dc->rosdc.hClipRgn = IntSysCreateRectRgnIndirect(&rect);
- }
- else
- {
- dc->rosdc.hClipRgn = IntSysCreateRectRgn(0, 0, 0, 0);
- }
+ EngSetLastError(ERROR_INVALID_PARAMETER);
+ return ERROR;
}
- if(fnMode == RGN_COPY)
+
+ if (!(dc = DC_LockDc(hDC)))
{
- NtGdiCombineRgn(dc->rosdc.hClipRgn, hrgn, 0, fnMode);
+ EngSetLastError(ERROR_INVALID_HANDLE);
+ return ERROR;
+ }
+
+ prgn = REGION_LockRgn(hrgn);
+
+ if ((prgn == NULL) && (fnMode != RGN_COPY))
+ {
+ //EngSetLastError(ERROR_INVALID_HANDLE); doesn't set this.
+ retval = ERROR;
}
else
- NtGdiCombineRgn(dc->rosdc.hClipRgn, dc->rosdc.hClipRgn, hrgn, fnMode);
- }
+ {
+#if 0 // Testing GDI Batch.
+ {
+ RECTL rcl;
+ if (prgn)
+ REGION_GetRgnBox(prgn, &rcl);
+ else
+ fnMode |= GDIBS_NORECT;
+ retval = IntGdiExtSelectClipRect(dc, &rcl, fnMode);
+ }
+#else
+ retval = IntGdiExtSelectClipRgn(dc, prgn, fnMode);
+#endif
+ }
- return CLIPPING_UpdateGCRegion(dc);
-}
+ if (prgn)
+ REGION_UnlockRgn(prgn);
+ DC_UnlockDc(dc);
+ return retval;
+}
-int APIENTRY NtGdiExtSelectClipRgn(HDC hDC,
- HRGN hrgn,
- int fnMode)
+_Success_(return!=ERROR)
+INT
+FASTCALL
+GdiGetClipBox(
+ _In_ HDC hdc,
+ _Out_ LPRECT prc)
{
- int retval;
- DC *dc;
+ PDC pdc;
+ INT iComplexity;
- if (!(dc = DC_LockDc(hDC)))
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return ERROR;
- }
+ /* Lock the DC */
+ pdc = DC_LockDc(hdc);
+ if (!pdc)
+ {
+ return ERROR;
+ }
- retval = GdiExtSelectClipRgn ( dc, hrgn, fnMode );
+ /* Update RAO region if necessary */
+ if (pdc->fs & DC_FLAG_DIRTY_RAO)
+ CLIPPING_UpdateGCRegion(pdc);
- DC_UnlockDc(dc);
- return retval;
+ /* Check if we have a RAO region (intersection of API and VIS region) */
+ if (pdc->prgnRao)
+ {
+ /* We have a RAO region, use it */
+ iComplexity = REGION_GetRgnBox(pdc->prgnRao, prc);
+ }
+ else
+ {
+ /* No RAO region means no API region, so use the VIS region */
+ ASSERT(pdc->prgnVis);
+ iComplexity = REGION_GetRgnBox(pdc->prgnVis, prc);
+ }
+
+ /* Unlock the DC */
+ DC_UnlockDc(pdc);
+
+ /* Convert the rect to logical coordinates */
+ IntDPtoLP(pdc, (LPPOINT)prc, 2);
+
+ /* Return the complexity */
+ return iComplexity;
}
-INT FASTCALL
-GdiGetClipBox(HDC hDC, PRECTL rc)
+_Success_(return!=ERROR)
+INT
+APIENTRY
+NtGdiGetAppClipBox(
+ _In_ HDC hdc,
+ _Out_ LPRECT prc)
{
- INT retval;
- PDC dc;
- PROSRGNDATA pRgnNew, pRgn = NULL;
- BOOL Unlock = FALSE; // Small HACK
-
- if (!(dc = DC_LockDc(hDC)))
- {
- return ERROR;
- }
-
- /* FIXME: Rao and Vis only! */
- if (dc->prgnAPI) // APIRGN
- {
- pRgn = dc->prgnAPI;
- }
- else if (dc->dclevel.prgnMeta) // METARGN
- {
- pRgn = dc->dclevel.prgnMeta;
- }
- else if (dc->rosdc.hClipRgn)
- {
- Unlock = TRUE ;
- pRgn = REGION_LockRgn(dc->rosdc.hClipRgn); // CLIPRGN
- }
-
- if (pRgn)
- {
- pRgnNew = IntSysCreateRectpRgn( 0, 0, 0, 0 );
-
- if (!pRgnNew)
- {
- DC_UnlockDc(dc);
- if(Unlock) REGION_UnlockRgn(pRgn);
- return ERROR;
- }
-
- IntGdiCombineRgn(pRgnNew, dc->prgnVis, pRgn, RGN_AND);
-
- retval = REGION_GetRgnBox(pRgnNew, rc);
-
- REGION_Delete(pRgnNew);
-
- DC_UnlockDc(dc);
- if(Unlock) REGION_UnlockRgn(pRgn);
- return retval;
- }
-
- retval = REGION_GetRgnBox(dc->prgnVis, rc);
- IntDPtoLP(dc, (LPPOINT)rc, 2);
- DC_UnlockDc(dc);
-
- return retval;
+ RECT rect;
+ INT iComplexity;
+
+ /* Call the internal function */
+ iComplexity = GdiGetClipBox(hdc, &rect);
+
+ if (iComplexity != ERROR)
+ {
+ _SEH2_TRY
+ {
+ ProbeForWrite(prc, sizeof(RECT), 1);
+ *prc = rect;
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ iComplexity = ERROR;
+ }
+ _SEH2_END
+ }
+
+ /* Return the complexity */
+ return iComplexity;
}
-INT APIENTRY
-NtGdiGetAppClipBox(HDC hDC, PRECTL rc)
+INT
+APIENTRY
+NtGdiExcludeClipRect(
+ _In_ HDC hdc,
+ _In_ INT xLeft,
+ _In_ INT yTop,
+ _In_ INT xRight,
+ _In_ INT yBottom)
{
- INT Ret;
- NTSTATUS Status = STATUS_SUCCESS;
- RECTL Saferect;
+ INT iComplexity;
+ RECTL rect;
+ PDC pdc;
- Ret = GdiGetClipBox(hDC, &Saferect);
+ /* Lock the DC */
+ pdc = DC_LockDc(hdc);
+ if (pdc == NULL)
+ {
+ EngSetLastError(ERROR_INVALID_HANDLE);
+ return ERROR;
+ }
- _SEH2_TRY
- {
- ProbeForWrite(rc,
- sizeof(RECT),
- 1);
- *rc = Saferect;
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END;
+ /* Convert coordinates to device space */
+ rect.left = xLeft;
+ rect.top = yTop;
+ rect.right = xRight;
+ rect.bottom = yBottom;
+ RECTL_vMakeWellOrdered(&rect);
+ IntLPtoDP(pdc, (LPPOINT)&rect, 2);
- if(!NT_SUCCESS(Status))
- {
- SetLastNtError(Status);
- return ERROR;
- }
+ /* Check if we already have a clip region */
+ if (pdc->dclevel.prgnClip != NULL)
+ {
+ /* We have a region, subtract the rect */
+ iComplexity = REGION_SubtractRectFromRgn(pdc->dclevel.prgnClip,
+ pdc->dclevel.prgnClip,
+ &rect);
+ }
+ else
+ {
+ /* We don't have a clip region yet, create an empty region */
+ pdc->dclevel.prgnClip = IntSysCreateRectpRgn(0, 0, 0, 0);
+ if (pdc->dclevel.prgnClip == NULL)
+ {
+ iComplexity = ERROR;
+ }
+ else
+ {
+ /* Subtract the rect from the VIS region */
+ iComplexity = REGION_SubtractRectFromRgn(pdc->dclevel.prgnClip,
+ pdc->prgnVis,
+ &rect);
+ }
+ }
- return Ret;
-}
+ /* Emulate Windows behavior */
+ if (iComplexity == SIMPLEREGION)
+ iComplexity = COMPLEXREGION;
-int APIENTRY NtGdiExcludeClipRect(HDC hDC,
- int LeftRect,
- int TopRect,
- int RightRect,
- int BottomRect)
-{
- INT Result;
- RECTL Rect;
- PREGION prgnNew, prgnClip;
- PDC dc = DC_LockDc(hDC);
-
- if (!dc)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return ERROR;
- }
-
- Rect.left = LeftRect;
- Rect.top = TopRect;
- Rect.right = RightRect;
- Rect.bottom = BottomRect;
-
- IntLPtoDP(dc, (LPPOINT)&Rect, 2);
-
- prgnNew = IntSysCreateRectpRgnIndirect(&Rect);
- if (!prgnNew)
- {
- Result = ERROR;
- }
- else
- {
- if (!dc->rosdc.hClipRgn)
- {
- dc->rosdc.hClipRgn = IntSysCreateRectRgn(0, 0, 0, 0);
- prgnClip = REGION_LockRgn(dc->rosdc.hClipRgn);
- IntGdiCombineRgn(prgnClip, dc->prgnVis, prgnNew, RGN_DIFF);
- REGION_UnlockRgn(prgnClip);
- Result = SIMPLEREGION;
- }
- else
- {
- prgnClip = REGION_LockRgn(dc->rosdc.hClipRgn);
- Result = IntGdiCombineRgn(prgnClip, prgnClip, prgnNew, RGN_DIFF);
- REGION_UnlockRgn(prgnClip);
- }
- REGION_Delete(prgnNew);
- }
- if (Result != ERROR)
- CLIPPING_UpdateGCRegion(dc);
-
- DC_UnlockDc(dc);
-
- return Result;
+ /* If we succeeded, mark the RAO region as dirty */
+ if (iComplexity != ERROR)
+ pdc->fs |= DC_FLAG_DIRTY_RAO;
+
+ /* Unlock the DC */
+ DC_UnlockDc(pdc);
+
+ return iComplexity;
}
-int APIENTRY NtGdiIntersectClipRect(HDC hDC,
- int LeftRect,
- int TopRect,
- int RightRect,
- int BottomRect)
+INT
+APIENTRY
+NtGdiIntersectClipRect(
+ _In_ HDC hdc,
+ _In_ INT xLeft,
+ _In_ INT yTop,
+ _In_ INT xRight,
+ _In_ INT yBottom)
{
- INT Result;
- RECTL Rect;
- HRGN NewRgn;
- PDC dc = DC_LockDc(hDC);
-
- DPRINT("NtGdiIntersectClipRect(%p, %d,%d-%d,%d)\n",
- hDC, LeftRect, TopRect, RightRect, BottomRect);
-
- if (!dc)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return ERROR;
- }
-
- Rect.left = LeftRect;
- Rect.top = TopRect;
- Rect.right = RightRect;
- Rect.bottom = BottomRect;
-
- IntLPtoDP(dc, (LPPOINT)&Rect, 2);
-
- NewRgn = IntSysCreateRectRgnIndirect(&Rect);
- if (!NewRgn)
- {
- Result = ERROR;
- }
- else if (!dc->rosdc.hClipRgn)
- {
- dc->rosdc.hClipRgn = NewRgn;
- Result = SIMPLEREGION;
- }
- else
- {
- Result = NtGdiCombineRgn(dc->rosdc.hClipRgn, dc->rosdc.hClipRgn, NewRgn, RGN_AND);
- GreDeleteObject(NewRgn);
- }
- if (Result != ERROR)
- CLIPPING_UpdateGCRegion(dc);
-
- DC_UnlockDc(dc);
-
- return Result;
+ INT iComplexity;
+ RECTL rect;
+ PREGION prgnNew;
+ PDC pdc;
+
+ DPRINT("NtGdiIntersectClipRect(%p, %d,%d-%d,%d)\n",
+ hdc, xLeft, yTop, xRight, yBottom);
+
+ /* Lock the DC */
+ pdc = DC_LockDc(hdc);
+ if (!pdc)
+ {
+ EngSetLastError(ERROR_INVALID_HANDLE);
+ return ERROR;
+ }
+
+ /* Convert coordinates to device space */
+ rect.left = xLeft;
+ rect.top = yTop;
+ rect.right = xRight;
+ rect.bottom = yBottom;
+ IntLPtoDP(pdc, (LPPOINT)&rect, 2);
+
+ /* Check if we already have a clip region */
+ if (pdc->dclevel.prgnClip != NULL)
+ {
+ /* We have a region, crop it */
+ iComplexity = REGION_CropRegion(pdc->dclevel.prgnClip,
+ pdc->dclevel.prgnClip,
+ &rect);
+ }
+ else
+ {
+ /* We don't have a region yet, allocate a new one */
+ prgnNew = IntSysCreateRectpRgnIndirect(&rect);
+ if (prgnNew == NULL)
+ {
+ iComplexity = ERROR;
+ }
+ else
+ {
+ /* Set the new region */
+ pdc->dclevel.prgnClip = prgnNew;
+ iComplexity = SIMPLEREGION;
+ }
+ }
+
+ /* If we succeeded, mark the RAO region as dirty */
+ if (iComplexity != ERROR)
+ pdc->fs |= DC_FLAG_DIRTY_RAO;
+
+ /* Unlock the DC */
+ DC_UnlockDc(pdc);
+
+ return iComplexity;
}
-int APIENTRY NtGdiOffsetClipRgn(HDC hDC,
- int XOffset,
- int YOffset)
+INT
+APIENTRY
+NtGdiOffsetClipRgn(
+ _In_ HDC hdc,
+ _In_ INT xOffset,
+ _In_ INT yOffset)
{
- INT Result;
- DC *dc;
+ INT iComplexity;
+ PDC pdc;
+ POINTL apt[2];
- if(!(dc = DC_LockDc(hDC)))
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return ERROR;
- }
+ /* Lock the DC */
+ pdc = DC_LockDc(hdc);
+ if (pdc == NULL)
+ {
+ if (!hdc) EngSetLastError(ERROR_INVALID_HANDLE);
+ return ERROR;
+ }
- if(dc->rosdc.hClipRgn != NULL)
- {
- Result = NtGdiOffsetRgn(dc->rosdc.hClipRgn,
- XOffset,
- YOffset);
- CLIPPING_UpdateGCRegion(dc);
- }
- else
- {
- Result = NULLREGION;
- }
+ /* Check if we have a clip region */
+ if (pdc->dclevel.prgnClip != NULL)
+ {
+ /* Convert coordinates into device space. Note that we need to convert
+ 2 coordinates to account for rotation / shear / offset */
+ apt[0].x = 0;
+ apt[0].y = 0;
+ apt[1].x = xOffset;
+ apt[1].y = yOffset;
+ IntLPtoDP(pdc, &apt, 2);
+
+ /* Offset the clip region */
+ if (!REGION_bOffsetRgn(pdc->dclevel.prgnClip,
+ apt[1].x - apt[0].x,
+ apt[1].y - apt[0].y))
+ {
+ iComplexity = ERROR;
+ }
+ else
+ {
+ IntGdiReleaseRaoRgn(pdc);
+ UpdateVisRgn(pdc);
+ iComplexity = REGION_Complexity(pdc->dclevel.prgnClip);
+ }
+
+ /* Mark the RAO region as dirty */
+ pdc->fs |= DC_FLAG_DIRTY_RAO;
+ }
+ else
+ {
+ /* NULL means no clipping, i.e. the "whole" region */
+ iComplexity = SIMPLEREGION;
+ }
- DC_UnlockDc(dc);
- return Result;
+ /* Unlock the DC and return the complexity */
+ DC_UnlockDc(pdc);
+ return iComplexity;
}
BOOL APIENTRY NtGdiPtVisible(HDC hDC,
int X,
int Y)
{
- HRGN rgn;
- DC *dc;
+ BOOL ret = FALSE;
+ PDC dc;
+ PREGION prgn;
- if(!(dc = DC_LockDc(hDC)))
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return FALSE;
- }
+ if(!(dc = DC_LockDc(hDC)))
+ {
+ EngSetLastError(ERROR_INVALID_HANDLE);
+ return FALSE;
+ }
+
+ prgn = dc->prgnRao ? dc->prgnRao : dc->prgnVis;
- rgn = dc->rosdc.hGCClipRgn;
- DC_UnlockDc(dc);
+ if (prgn)
+ {
+ POINT pt = {X, Y};
+ IntLPtoDP(dc, &pt, 1);
+ ret = REGION_PtInRegion(prgn, pt.x, pt.y);
+ }
- return (rgn ? NtGdiPtInRegion(rgn, X, Y) : FALSE);
+ DC_UnlockDc(dc);
+
+ return ret;
}
-BOOL APIENTRY NtGdiRectVisible(HDC hDC,
- LPRECT UnsafeRect)
+BOOL
+APIENTRY
+NtGdiRectVisible(
+ HDC hDC,
+ LPRECT UnsafeRect)
{
- NTSTATUS Status = STATUS_SUCCESS;
- PROSRGNDATA Rgn;
- PDC dc = DC_LockDc(hDC);
- BOOL Result = FALSE;
- RECTL Rect;
-
- if (!dc)
- {
- EngSetLastError(ERROR_INVALID_HANDLE);
- return FALSE;
- }
-
- _SEH2_TRY
- {
- ProbeForRead(UnsafeRect,
+ NTSTATUS Status = STATUS_SUCCESS;
+ PDC dc = DC_LockDc(hDC);
+ BOOL Result = FALSE;
+ RECTL Rect;
+ PREGION prgn;
+
+ if (!dc)
+ {
+ EngSetLastError(ERROR_INVALID_HANDLE);
+ return FALSE;
+ }
+
+ _SEH2_TRY
+ {
+ ProbeForRead(UnsafeRect,
sizeof(RECT),
1);
- Rect = *UnsafeRect;
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END;
-
- if(!NT_SUCCESS(Status))
- {
- DC_UnlockDc(dc);
- SetLastNtError(Status);
- return FALSE;
- }
-
- if (dc->rosdc.hGCClipRgn)
- {
- if((Rgn = (PROSRGNDATA)RGNOBJAPI_Lock(dc->rosdc.hGCClipRgn, NULL)))
- {
+ Rect = *UnsafeRect;
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ Status = _SEH2_GetExceptionCode();
+ }
+ _SEH2_END;
+
+ if(!NT_SUCCESS(Status))
+ {
+ DC_UnlockDc(dc);
+ SetLastNtError(Status);
+ return FALSE;
+ }
+
+ if (dc->fs & DC_FLAG_DIRTY_RAO)
+ CLIPPING_UpdateGCRegion(dc);
+
+ prgn = dc->prgnRao ? dc->prgnRao : dc->prgnVis;
+ if (prgn)
+ {
IntLPtoDP(dc, (LPPOINT)&Rect, 2);
- Result = REGION_RectInRegion(Rgn, &Rect);
- RGNOBJAPI_Unlock(Rgn);
- }
- }
- DC_UnlockDc(dc);
+ Result = REGION_RectInRegion(prgn, &Rect);
+ }
+ DC_UnlockDc(dc);
- return Result;
+ return Result;
}
int
FASTCALL
IntGdiSetMetaRgn(PDC pDC)
{
- INT Ret = ERROR;
- PROSRGNDATA TempRgn;
+ INT Ret = ERROR;
- if ( pDC->dclevel.prgnMeta )
- {
- if ( pDC->dclevel.prgnClip )
- {
- TempRgn = IntSysCreateRectpRgn(0,0,0,0);
- if (TempRgn)
+ if ( pDC->dclevel.prgnMeta )
+ {
+ if ( pDC->dclevel.prgnClip )
{
- Ret = IntGdiCombineRgn( TempRgn,
- pDC->dclevel.prgnMeta,
- pDC->dclevel.prgnClip,
- RGN_AND);
- if ( Ret )
- {
- GDIOBJ_vDereferenceObject(&pDC->dclevel.prgnMeta->BaseObject);
- if (!((PROSRGNDATA)pDC->dclevel.prgnMeta)->BaseObject.ulShareCount)
- REGION_Delete(pDC->dclevel.prgnMeta);
-
- pDC->dclevel.prgnMeta = TempRgn;
-
- GDIOBJ_vDereferenceObject(&pDC->dclevel.prgnClip->BaseObject);
- if (!((PROSRGNDATA)pDC->dclevel.prgnClip)->BaseObject.ulShareCount)
- REGION_Delete(pDC->dclevel.prgnClip);
-
- pDC->dclevel.prgnClip = NULL;
-
- IntGdiReleaseRaoRgn(pDC);
- }
- else
- REGION_Delete(TempRgn);
+ PREGION prgn = IntSysCreateRectpRgn(0,0,0,0);
+ if ( prgn )
+ {
+ if (REGION_bIntersectRegion(prgn, pDC->dclevel.prgnMeta, pDC->dclevel.prgnClip))
+ {
+ // See Restore/SaveDC
+ REGION_Delete(pDC->dclevel.prgnMeta);
+ pDC->dclevel.prgnMeta = prgn;
+
+ REGION_Delete(pDC->dclevel.prgnClip);
+ pDC->dclevel.prgnClip = NULL;
+ IntGdiReleaseRaoRgn(pDC);
+
+ Ret = REGION_Complexity(pDC->dclevel.prgnMeta);
+ }
+ else
+ REGION_Delete(prgn);
+ }
}
- }
- else
- Ret = REGION_Complexity(pDC->dclevel.prgnMeta);
- }
- else
- {
- if ( pDC->dclevel.prgnClip )
- {
- Ret = REGION_Complexity(pDC->dclevel.prgnClip);
- pDC->dclevel.prgnMeta = pDC->dclevel.prgnClip;
- pDC->dclevel.prgnClip = NULL;
- }
- else
- Ret = SIMPLEREGION;
- }
- return Ret;
+ else
+ Ret = REGION_Complexity(pDC->dclevel.prgnMeta);
+ }
+ else
+ {
+ if ( pDC->dclevel.prgnClip )
+ {
+ Ret = REGION_Complexity(pDC->dclevel.prgnClip);
+ pDC->dclevel.prgnMeta = pDC->dclevel.prgnClip;
+ pDC->dclevel.prgnClip = NULL;
+ }
+ else
+ Ret = SIMPLEREGION;
+ }
+
+ return Ret;
}
return Ret;
}
-INT FASTCALL
-NEW_CLIPPING_UpdateGCRegion(PDC pDC)
+VOID
+FASTCALL
+CLIPPING_UpdateGCRegion(PDC pDC)
{
- CLIPOBJ * co;
+ // Moved from Release Rao. Though it still gets over written.
+ RECTL_vSetEmptyRect(&pDC->erclClip);
+
+ /* Must have VisRgn set to a valid state! */
+ ASSERT (pDC->prgnVis);
+#if 0 // (w2k3) This works with limitations. (w7u) ReactOS relies on Rao.
+ if ( !pDC->dclevel.prgnClip &&
+ !pDC->dclevel.prgnMeta &&
+ !pDC->prgnAPI)
+ {
+ if (pDC->prgnRao)
+ REGION_Delete(pDC->prgnRao);
+ pDC->prgnRao = NULL;
- /* Must have VisRgn set to a valid state! */
- ASSERT (pDC->prgnVis);
+ REGION_bOffsetRgn(pDC->prgnVis, pDC->ptlDCOrig.x, pDC->ptlDCOrig.y);
-// FIXME: this seems to be broken!
+ RtlCopyMemory(&pDC->erclClip,
+ &pDC->prgnVis->rdh.rcBound,
+ sizeof(RECTL));
- if (pDC->prgnAPI)
- {
- REGION_Delete(pDC->prgnAPI);
- pDC->prgnAPI = IntSysCreateRectpRgn(0,0,0,0);
- }
+ IntEngUpdateClipRegion(&pDC->co,
+ pDC->prgnVis->rdh.nCount,
+ pDC->prgnVis->Buffer,
+ &pDC->erclClip);
- if (pDC->prgnRao)
- {
- REGION_Delete(pDC->prgnRao);
- pDC->prgnRao = IntSysCreateRectpRgn(0,0,0,0);
- }
+ REGION_bOffsetRgn(pDC->prgnVis, -pDC->ptlDCOrig.x, -pDC->ptlDCOrig.y);
- if (!pDC->prgnRao)
- {
- return ERROR;
- }
+ pDC->fs &= ~DC_FLAG_DIRTY_RAO;
+ UpdateVisRgn(pDC);
+ return;
+ }
+#endif
+ if (pDC->prgnAPI)
+ {
+ REGION_Delete(pDC->prgnAPI);
+ pDC->prgnAPI = NULL;
+ }
- if (pDC->dclevel.prgnMeta && pDC->dclevel.prgnClip)
- {
- IntGdiCombineRgn( pDC->prgnAPI,
- pDC->dclevel.prgnClip,
- pDC->dclevel.prgnMeta,
- RGN_AND);
- }
- else
- {
- if (pDC->dclevel.prgnClip)
- {
- IntGdiCombineRgn( pDC->prgnAPI,
- pDC->dclevel.prgnClip,
- NULL,
- RGN_COPY);
- }
- else if (pDC->dclevel.prgnMeta)
- {
- IntGdiCombineRgn( pDC->prgnAPI,
- pDC->dclevel.prgnMeta,
- NULL,
- RGN_COPY);
- }
- }
+ if (pDC->prgnRao)
+ REGION_Delete(pDC->prgnRao);
+
+ pDC->prgnRao = IntSysCreateRectpRgn(0,0,0,0);
+
+ ASSERT(pDC->prgnRao);
+
+ if (pDC->dclevel.prgnMeta || pDC->dclevel.prgnClip)
+ {
+ pDC->prgnAPI = IntSysCreateRectpRgn(0,0,0,0);
+ if (!pDC->dclevel.prgnMeta)
+ {
+ REGION_bCopy(pDC->prgnAPI,
+ pDC->dclevel.prgnClip);
+ }
+ else if (!pDC->dclevel.prgnClip)
+ {
+ REGION_bCopy(pDC->prgnAPI,
+ pDC->dclevel.prgnMeta);
+ }
+ else
+ {
+ REGION_bIntersectRegion(pDC->prgnAPI,
+ pDC->dclevel.prgnClip,
+ pDC->dclevel.prgnMeta);
+ }
+ }
- IntGdiCombineRgn( pDC->prgnRao,
- pDC->prgnVis,
- pDC->prgnAPI,
- RGN_AND);
+ if (pDC->prgnAPI)
+ {
+ REGION_bIntersectRegion(pDC->prgnRao,
+ pDC->prgnVis,
+ pDC->prgnAPI);
+ }
+ else
+ {
+ REGION_bCopy(pDC->prgnRao,
+ pDC->prgnVis);
+ }
- RtlCopyMemory(&pDC->erclClip,
- &pDC->prgnRao->rdh.rcBound,
- sizeof(RECTL));
- pDC->fs &= ~DC_FLAG_DIRTY_RAO;
+ REGION_bOffsetRgn(pDC->prgnRao, pDC->ptlDCOrig.x, pDC->ptlDCOrig.y);
- IntGdiOffsetRgn(pDC->prgnRao, pDC->ptlDCOrig.x, pDC->ptlDCOrig.y);
+ RtlCopyMemory(&pDC->erclClip,
+ &pDC->prgnRao->rdh.rcBound,
+ sizeof(RECTL));
- // pDC->co should be used. Example, CLIPOBJ_cEnumStart uses XCLIPOBJ to build
- // the rects from region objects rects in pClipRgn->Buffer.
- // With pDC->co.pClipRgn->Buffer,
- // pDC->co.pClipRgn = pDC->prgnRao ? pDC->prgnRao : pDC->prgnVis;
+ pDC->fs &= ~DC_FLAG_DIRTY_RAO;
+ UpdateVisRgn(pDC);
- co = IntEngCreateClipRegion(pDC->prgnRao->rdh.nCount,
- pDC->prgnRao->Buffer,
- &pDC->erclClip);
- if (co)
- {
- if (pDC->rosdc.CombinedClip != NULL)
- IntEngDeleteClipRegion(pDC->rosdc.CombinedClip);
+ // pDC->co should be used. Example, CLIPOBJ_cEnumStart uses XCLIPOBJ to build
+ // the rects from region objects rects in pClipRgn->Buffer.
+ // With pDC->co.pClipRgn->Buffer,
+ // pDC->co.pClipRgn = pDC->prgnRao ? pDC->prgnRao : pDC->prgnVis;
- pDC->rosdc.CombinedClip = co;
- }
+ IntEngUpdateClipRegion(&pDC->co,
+ pDC->prgnRao->rdh.nCount,
+ pDC->prgnRao->Buffer,
+ &pDC->erclClip);
- return IntGdiOffsetRgn(pDC->prgnRao, -pDC->ptlDCOrig.x, -pDC->ptlDCOrig.y);
+ REGION_bOffsetRgn(pDC->prgnRao, -pDC->ptlDCOrig.x, -pDC->ptlDCOrig.y);
}
/* EOF */
projects / reactos.git / blobdiff