INT FASTCALL
GdiSelectVisRgn(HDC hdc, HRGN hrgn)
{
int retval;
DC *dc;
PREGION prgn;
if (!hrgn)
{
EngSetLastError(ERROR_INVALID_PARAMETER);
return ERROR;
}
if (!(dc = DC_LockDc(hdc)))
{
EngSetLastError(ERROR_INVALID_HANDLE);
return ERROR;
}
dc->fs &= ~DC_FLAG_DIRTY_RAO;
ASSERT (dc->prgnVis != NULL);
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);
return retval;
}
/***********************************************************************
* IntersectVisRect (GDI.98)
*/
INT16 WINAPI IntersectVisRect16( HDC16 hdc16, INT16 left, INT16 top, INT16 right, INT16 bottom )
{
HRGN tempRgn;
INT16 ret;
POINT pt[2];
HDC hdc = HDC_32( hdc16 );
DC * dc = DC_GetDCUpdate( hdc );
if (!dc) return ERROR;
pt[0].x = left;
pt[0].y = top;
pt[1].x = right;
pt[1].y = bottom;
LPtoDP( hdc, pt, 2 );
TRACE("%p %ld,%ld - %ld,%ld\n", hdc, pt[0].x, pt[0].y, pt[1].x, pt[1].y);
if (!(tempRgn = CreateRectRgn( pt[0].x, pt[0].y, pt[1].x, pt[1].y ))) ret = ERROR;
else
{
ret = CombineRgn( dc->hVisRgn, dc->hVisRgn, tempRgn, RGN_AND );
DeleteObject( tempRgn );
}
if (ret != ERROR) CLIPPING_UpdateGCRegion( dc );
GDI_ReleaseObj( hdc );
return ret;
}
int APIENTRY NtGdiOffsetClipRgn(HDC hDC,
int XOffset,
int YOffset)
{
INT Result;
DC *dc;
if(!(dc = DC_LockDc(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;
}
DC_UnlockDc(dc);
return Result;
}
/***********************************************************************
* ExcludeVisRect (GDI.73)
*/
INT16 WINAPI ExcludeVisRect16( HDC16 hdc16, INT16 left, INT16 top, INT16 right, INT16 bottom )
{
HRGN tempRgn;
INT16 ret;
POINT pt[2];
HDC hdc = HDC_32( hdc16 );
DC * dc = get_dc_ptr( hdc );
if (!dc) return ERROR;
pt[0].x = left;
pt[0].y = top;
pt[1].x = right;
pt[1].y = bottom;
LPtoDP( hdc, pt, 2 );
TRACE("%p %d,%d - %d,%d\n", hdc, pt[0].x, pt[0].y, pt[1].x, pt[1].y);
if (!(tempRgn = CreateRectRgn( pt[0].x, pt[0].y, pt[1].x, pt[1].y ))) ret = ERROR;
else
{
update_dc( dc );
ret = CombineRgn( dc->hVisRgn, dc->hVisRgn, tempRgn, RGN_DIFF );
DeleteObject( tempRgn );
}
if (ret != ERROR) CLIPPING_UpdateGCRegion( dc );
release_dc_ptr( dc );
return ret;
}
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;
}
/***********************************************************************
* OffsetVisRgn (GDI.102)
*/
INT16 WINAPI OffsetVisRgn16( HDC16 hdc16, INT16 x, INT16 y )
{
INT16 retval;
HDC hdc = HDC_32( hdc16 );
DC * dc = DC_GetDCUpdate( hdc );
if (!dc) return ERROR;
TRACE("%p %d,%d\n", hdc, x, y );
retval = OffsetRgn( dc->hVisRgn, x, y );
CLIPPING_UpdateGCRegion( dc );
GDI_ReleaseObj( hdc );
return retval;
}
/***********************************************************************
* OffsetVisRgn (GDI.102)
*/
INT16 WINAPI OffsetVisRgn16( HDC16 hdc16, INT16 x, INT16 y )
{
INT16 retval;
HDC hdc = HDC_32( hdc16 );
DC * dc = get_dc_ptr( hdc );
if (!dc) return ERROR;
TRACE("%p %d,%d\n", hdc, x, y );
update_dc( dc );
retval = OffsetRgn( dc->hVisRgn, x, y );
CLIPPING_UpdateGCRegion( dc );
release_dc_ptr( dc );
return retval;
}
int APIENTRY NtGdiIntersectClipRect(HDC hDC,
int LeftRect,
int TopRect,
int RightRect,
int BottomRect)
{
INT Result;
RECTL Rect;
HRGN NewRgn;
PDC dc = DC_LockDc(hDC);
DPRINT("NtGdiIntersectClipRect(%x, %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 FASTCALL GdiExtSelectClipRgn(PDC dc,
HRGN hrgn,
int fnMode)
{
// dc->fs &= ~DC_FLAG_DIRTY_RAO;
if (!hrgn)
{
if (fnMode == RGN_COPY)
{
if (dc->rosdc.hClipRgn != NULL)
{
GreDeleteObject(dc->rosdc.hClipRgn);
dc->rosdc.hClipRgn = NULL;
}
}
else
{
EngSetLastError(ERROR_INVALID_PARAMETER);
return ERROR;
}
}
else
{
if (!dc->rosdc.hClipRgn)
{
RECTL rect;
if(dc->prgnVis)
{
REGION_GetRgnBox(dc->prgnVis, &rect);
dc->rosdc.hClipRgn = IntSysCreateRectRgnIndirect(&rect);
}
else
{
dc->rosdc.hClipRgn = IntSysCreateRectRgn(0, 0, 0, 0);
}
}
if(fnMode == RGN_COPY)
{
NtGdiCombineRgn(dc->rosdc.hClipRgn, hrgn, 0, fnMode);
}
else
NtGdiCombineRgn(dc->rosdc.hClipRgn, dc->rosdc.hClipRgn, hrgn, fnMode);
}
return CLIPPING_UpdateGCRegion(dc);
}
/******************************************************************************
* ExtSelectClipRgn [GDI32.@]
*/
INT WINAPI ExtSelectClipRgn( HDC hdc, HRGN hrgn, INT fnMode )
{
INT retval;
RECT rect;
DC * dc = get_dc_ptr( hdc );
if (!dc) return ERROR;
TRACE("%p %p %d\n", hdc, hrgn, fnMode );
update_dc( dc );
if (dc->funcs->pExtSelectClipRgn)
{
retval = dc->funcs->pExtSelectClipRgn( dc->physDev, hrgn, fnMode );
release_dc_ptr( dc );
return retval;
}
if (!hrgn)
{
if (fnMode == RGN_COPY)
{
if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
dc->hClipRgn = 0;
}
else
{
FIXME("Unimplemented: hrgn NULL in mode: %d\n", fnMode);
release_dc_ptr( dc );
return ERROR;
}
}
else
{
if (!dc->hClipRgn)
create_default_clip_region( dc );
if(fnMode == RGN_COPY)
CombineRgn( dc->hClipRgn, hrgn, 0, fnMode );
else
CombineRgn( dc->hClipRgn, dc->hClipRgn, hrgn, fnMode);
}
CLIPPING_UpdateGCRegion( dc );
release_dc_ptr( dc );
return GetClipBox(hdc, &rect);
}
/***********************************************************************
* SelectVisRgn (GDI32.@)
*
* Note: not exported on Windows, only the 16-bit version is exported.
*/
INT WINAPI SelectVisRgn( HDC hdc, HRGN hrgn )
{
int retval;
DC * dc;
if (!hrgn) return ERROR;
if (!(dc = get_dc_ptr( hdc ))) return ERROR;
TRACE("%p %p\n", hdc, hrgn );
dc->dirty = 0;
retval = CombineRgn( dc->hVisRgn, hrgn, 0, RGN_COPY );
CLIPPING_UpdateGCRegion( dc );
release_dc_ptr( dc );
return retval;
}
/***********************************************************************
* IntersectClipRect (GDI32.@)
*/
INT WINAPI IntersectClipRect( HDC hdc, INT left, INT top, INT right, INT bottom )
{
INT ret;
DC *dc = get_dc_ptr( hdc );
if (!dc) return ERROR;
TRACE("%p %d,%d - %d,%d\n", hdc, left, top, right, bottom );
update_dc( dc );
if(dc->funcs->pIntersectClipRect)
{
ret = dc->funcs->pIntersectClipRect( dc->physDev, left, top, right, bottom );
/* FIXME: ret is just a success flag, we should return a proper value */
}
else
{
POINT pt[2];
pt[0].x = left;
pt[0].y = top;
pt[1].x = right;
pt[1].y = bottom;
LPtoDP( hdc, pt, 2 );
if (!dc->hClipRgn)
{
dc->hClipRgn = CreateRectRgn( pt[0].x, pt[0].y, pt[1].x, pt[1].y );
ret = SIMPLEREGION;
}
else
{
HRGN newRgn;
if (!(newRgn = CreateRectRgn( pt[0].x, pt[0].y, pt[1].x, pt[1].y ))) ret = ERROR;
else
{
ret = CombineRgn( dc->hClipRgn, dc->hClipRgn, newRgn, RGN_AND );
DeleteObject( newRgn );
}
}
if (ret != ERROR) CLIPPING_UpdateGCRegion( dc );
}
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* SelectVisRgn (GDI.105)
*/
INT16 WINAPI SelectVisRgn16( HDC16 hdc16, HRGN16 hrgn )
{
int retval;
HDC hdc = HDC_32( hdc16 );
DC * dc;
if (!hrgn) return ERROR;
if (!(dc = DC_GetDCPtr( hdc ))) return ERROR;
TRACE("%p %04x\n", hdc, hrgn );
dc->flags &= ~DC_DIRTY;
retval = CombineRgn( dc->hVisRgn, HRGN_32(hrgn), 0, RGN_COPY );
CLIPPING_UpdateGCRegion( dc );
GDI_ReleaseObj( hdc );
return retval;
}
INT
FASTCALL
GdiGetClipBox(
_In_ HDC hdc,
_Out_ LPRECT prc)
{
PDC pdc;
INT iComplexity;
/* Lock the DC */
pdc = DC_LockDc(hdc);
if (!pdc)
{
return ERROR;
}
/* Update RAO region if necessary */
if (pdc->fs & DC_FLAG_DIRTY_RAO)
CLIPPING_UpdateGCRegion(pdc);
/* 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;
}
/***********************************************************************
* OffsetClipRgn (GDI32.@)
*/
INT WINAPI OffsetClipRgn( HDC hdc, INT x, INT y )
{
INT ret = SIMPLEREGION;
DC *dc = DC_GetDCUpdate( hdc );
if (!dc) return ERROR;
TRACE("%p %d,%d\n", hdc, x, y );
if(dc->funcs->pOffsetClipRgn)
{
ret = dc->funcs->pOffsetClipRgn( dc->physDev, x, y );
/* FIXME: ret is just a success flag, we should return a proper value */
}
else if (dc->hClipRgn) {
ret = OffsetRgn( dc->hClipRgn, MulDiv( x, dc->vportExtX, dc->wndExtX ),
MulDiv( y, dc->vportExtY, dc->wndExtY ) );
CLIPPING_UpdateGCRegion( dc );
}
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* RestoreVisRgn (GDI.130)
*/
INT16 WINAPI RestoreVisRgn16( HDC16 hdc16 )
{
struct saved_visrgn *saved;
HDC hdc = HDC_32( hdc16 );
DC *dc = get_dc_ptr( hdc );
INT16 ret = ERROR;
if (!dc) return ERROR;
TRACE("%p\n", hdc );
if (!(saved = dc->saved_visrgn)) goto done;
ret = CombineRgn( dc->hVisRgn, saved->hrgn, 0, RGN_COPY );
dc->saved_visrgn = saved->next;
DeleteObject( saved->hrgn );
HeapFree( GetProcessHeap(), 0, saved );
CLIPPING_UpdateGCRegion( dc );
done:
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* ExcludeClipRect (GDI32.@)
*/
INT WINAPI ExcludeClipRect( HDC hdc, INT left, INT top,
INT right, INT bottom )
{
HRGN newRgn;
INT ret;
DC *dc = DC_GetDCUpdate( hdc );
if (!dc) return ERROR;
TRACE("%p %dx%d,%dx%d\n", hdc, left, top, right, bottom );
if(dc->funcs->pExcludeClipRect)
{
ret = dc->funcs->pExcludeClipRect( dc->physDev, left, top, right, bottom );
/* FIXME: ret is just a success flag, we should return a proper value */
}
else
{
POINT pt[2];
pt[0].x = left;
pt[0].y = top;
pt[1].x = right;
pt[1].y = bottom;
LPtoDP( hdc, pt, 2 );
if (!(newRgn = CreateRectRgn( pt[0].x, pt[0].y, pt[1].x, pt[1].y ))) ret = ERROR;
else
{
if (!dc->hClipRgn)
create_default_clip_region( dc );
ret = CombineRgn( dc->hClipRgn, dc->hClipRgn, newRgn, RGN_DIFF );
DeleteObject( newRgn );
}
if (ret != ERROR) CLIPPING_UpdateGCRegion( dc );
}
GDI_ReleaseObj( hdc );
return ret;
}
DWORD
APIENTRY
NtGdiGetBoundsRect(
IN HDC hdc,
OUT LPRECT prc,
IN DWORD flags)
{
DWORD ret;
PDC pdc;
RECT rc;
/* Lock the DC */
if (!(pdc = DC_LockDc(hdc))) return 0;
if (!(flags & DCB_WINDOWMGR))
{
rc = pdc->erclBoundsApp;
if (RECTL_bIsEmptyRect(&rc))
{
rc.left = rc.top = rc.right = rc.bottom = 0;
ret = DCB_RESET;
}
else
{
RECTL rcRgn;
if (pdc->fs & DC_FLAG_DIRTY_RAO) CLIPPING_UpdateGCRegion(pdc);
if(!REGION_GetRgnBox(pdc->prgnRao, &rcRgn))
{
REGION_GetRgnBox(pdc->prgnVis, &rcRgn);
}
rc.left = max( rc.left, 0 );
rc.top = max( rc.top, 0 );
rc.right = min( rc.right, rcRgn.right - rcRgn.left );
rc.bottom = min( rc.bottom, rcRgn.bottom - rcRgn.top );
DPRINT("Rao dc %p r %d b %d\n",pdc,rcRgn.right - rcRgn.left, rcRgn.bottom - rcRgn.top);
DPRINT("rc l %d t %d\n",rc.left,rc.top);
DPRINT(" r %d b %d\n",rc.right,rc.bottom);
ret = DCB_SET;
}
IntDPtoLP( pdc, &rc, 2 );
DPRINT("rc1 l %d t %d\n",rc.left,rc.top);
DPRINT(" r %d b %d\n",rc.right,rc.bottom);
}
else
{
rc = pdc->erclBounds;
ret = DCB_SET;
}
/* Copy the rect to the caller */
_SEH2_TRY
{
ProbeForWrite(prc, sizeof(RECT), 1);
*prc = rc;
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
ret = 0;
}
_SEH2_END;
if (flags & DCB_RESET)
{
if (!(flags & DCB_WINDOWMGR))
{
pdc->erclBoundsApp.left = pdc->erclBoundsApp.top = INT_MAX;
pdc->erclBoundsApp.right = pdc->erclBoundsApp.bottom = INT_MIN;
}
else
{
pdc->erclBounds.left = pdc->erclBounds.top = INT_MAX;
pdc->erclBounds.right = pdc->erclBounds.bottom = INT_MIN;
}
}
DC_UnlockDc(pdc);
return ret;
}
/* rc1 and rc2 are the rectangles where we want to draw or
* from where we take pixels. */
VOID
FASTCALL
DC_vPrepareDCsForBlit(
PDC pdcDest,
const RECT* rcDest,
PDC pdcSrc,
const RECT* rcSrc)
{
PDC pdcFirst, pdcSecond;
const RECT *prcFirst, *prcSecond;
/* Update brushes */
if (pdcDest->pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
DC_vUpdateFillBrush(pdcDest);
if (pdcDest->pdcattr->ulDirty_ & (DIRTY_LINE | DC_PEN_DIRTY))
DC_vUpdateLineBrush(pdcDest);
if(pdcDest->pdcattr->ulDirty_ & DIRTY_TEXT)
DC_vUpdateTextBrush(pdcDest);
/* Lock them in good order */
if(pdcSrc)
{
if((ULONG_PTR)pdcDest->ppdev->hsemDevLock >= (ULONG_PTR)pdcSrc->ppdev->hsemDevLock)
{
pdcFirst = pdcDest;
prcFirst = rcDest;
pdcSecond = pdcSrc;
prcSecond = rcSrc;
}
else
{
pdcFirst = pdcSrc;
prcFirst = rcSrc;
pdcSecond = pdcDest;
prcSecond = rcDest;
}
}
else
{
pdcFirst = pdcDest ;
prcFirst = rcDest;
pdcSecond = NULL;
prcSecond = NULL;
}
/* Update clipping of dest DC if needed */
if (pdcDest->dctype == DCTYPE_DIRECT)
{
DCE* dce = DceGetDceFromDC(pdcDest->BaseObject.hHmgr);
if (dce)
DceUpdateVisRgn(dce, dce->pwndOrg, dce->DCXFlags);
}
if (pdcDest->fs & DC_FLAG_DIRTY_RAO)
CLIPPING_UpdateGCRegion(pdcDest);
/* Lock and update first DC */
if(pdcFirst->dctype == DCTYPE_DIRECT)
{
EngAcquireSemaphore(pdcFirst->ppdev->hsemDevLock);
/* Update surface if needed */
if(pdcFirst->ppdev->pSurface != pdcFirst->dclevel.pSurface)
{
DC_vUpdateDC(pdcFirst);
}
}
if(pdcFirst->dctype == DCTYPE_DIRECT)
{
if (!prcFirst)
prcFirst = &pdcFirst->erclClip;
MouseSafetyOnDrawStart(pdcFirst->ppdev,
prcFirst->left,
prcFirst->top,
prcFirst->right,
prcFirst->bottom) ;
}
if (!pdcSecond)
return;
/* Lock and update second DC */
if(pdcSecond->dctype == DCTYPE_DIRECT)
{
EngAcquireSemaphore(pdcSecond->ppdev->hsemDevLock);
/* Update surface if needed */
if(pdcSecond->ppdev->pSurface != pdcSecond->dclevel.pSurface)
{
DC_vUpdateDC(pdcSecond);
}
}
if(pdcSecond->dctype == DCTYPE_DIRECT)
{
if (!prcSecond)
prcSecond = &pdcSecond->erclClip;
MouseSafetyOnDrawStart(pdcSecond->ppdev,
prcSecond->left,
prcSecond->top,
prcSecond->right,
prcSecond->bottom) ;
}
}
