static
void
DC_vUpdateDC(PDC pdc)
{
// PREGION VisRgn ;
PPDEVOBJ ppdev = pdc->ppdev ;
pdc->dhpdev = ppdev->dhpdev;
SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
pdc->dclevel.pSurface = PDEVOBJ_pSurface(ppdev);
PDEVOBJ_sizl(pdc->ppdev, &pdc->dclevel.sizl);
#if 0
VisRgn = IntSysCreateRectpRgn(0, 0, pdc->dclevel.sizl.cx, pdc->dclevel.sizl.cy);
ASSERT(VisRgn);
GdiSelectVisRgn(pdc->BaseObject.hHmgr, VisRgn);
REGION_Delete(VisRgn);
#endif
pdc->flGraphicsCaps = ppdev->devinfo.flGraphicsCaps;
pdc->flGraphicsCaps2 = ppdev->devinfo.flGraphicsCaps2;
/* Mark EBRUSHOBJs as dirty */
pdc->pdcattr->ulDirty_ |= DIRTY_DEFAULT ;
}
VOID FASTCALL
co_VIS_WindowLayoutChanged(
PWND Wnd,
PREGION NewlyExposed)
{
PWND Parent;
USER_REFERENCE_ENTRY Ref;
ASSERT_REFS_CO(Wnd);
Parent = Wnd->spwndParent;
if(Parent)
{
PREGION TempRgn = IntSysCreateRectpRgn(0, 0, 0, 0);
if (!TempRgn)
return;
IntGdiCombineRgn(TempRgn, NewlyExposed, NULL, RGN_COPY);
REGION_bOffsetRgn(TempRgn,
Wnd->rcWindow.left - Parent->rcClient.left,
Wnd->rcWindow.top - Parent->rcClient.top);
UserRefObjectCo(Parent, &Ref);
co_UserRedrawWindow(Parent, NULL, TempRgn,
RDW_FRAME | RDW_ERASE | RDW_INVALIDATE |
RDW_ALLCHILDREN);
UserDerefObjectCo(Parent);
REGION_Delete(TempRgn);
}
}
INT FASTCALL
GdiGetClipBox(HDC hDC, PRECTL rc)
{
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;
}
int
FASTCALL
IntGdiSetMetaRgn(PDC pDC)
{
INT Ret = ERROR;
PROSRGNDATA TempRgn;
if ( pDC->dclevel.prgnMeta )
{
if ( pDC->dclevel.prgnClip )
{
TempRgn = IntSysCreateRectpRgn(0,0,0,0);
if (TempRgn)
{
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);
}
}
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;
}
VOID
FASTCALL
DC_vCopyState(PDC pdcSrc, PDC pdcDst, BOOL To)
{
DPRINT("DC_vCopyState(%p, %p)\n", pdcSrc->BaseObject.hHmgr, pdcDst->BaseObject.hHmgr);
/* Copy full DC attribute */
*pdcDst->pdcattr = *pdcSrc->pdcattr;
/* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
/* The VisRectRegion field needs to be set to a valid state */
/* Mark some fields as dirty */
pdcDst->pdcattr->ulDirty_ |= (DIRTY_FILL|DIRTY_LINE|DIRTY_TEXT|DIRTY_BACKGROUND|DIRTY_CHARSET|DC_ICM_NOT_CALIBRATED|DC_ICM_NOT_SET); // Note: Use if, To is FALSE....
/* Copy DC level */
pdcDst->dclevel.pColorSpace = pdcSrc->dclevel.pColorSpace;
pdcDst->dclevel.laPath = pdcSrc->dclevel.laPath;
pdcDst->dclevel.ca = pdcSrc->dclevel.ca;
pdcDst->dclevel.mxWorldToDevice = pdcSrc->dclevel.mxWorldToDevice;
pdcDst->dclevel.mxDeviceToWorld = pdcSrc->dclevel.mxDeviceToWorld;
pdcDst->dclevel.mxWorldToPage = pdcSrc->dclevel.mxWorldToPage;
pdcDst->dclevel.efM11PtoD = pdcSrc->dclevel.efM11PtoD;
pdcDst->dclevel.efM22PtoD = pdcSrc->dclevel.efM22PtoD;
pdcDst->dclevel.sizl = pdcSrc->dclevel.sizl;
pdcDst->dclevel.hpal = pdcSrc->dclevel.hpal;
/* Handle references here correctly */
DC_vSelectFillBrush(pdcDst, pdcSrc->dclevel.pbrFill);
DC_vSelectLineBrush(pdcDst, pdcSrc->dclevel.pbrLine);
DC_vSelectPalette(pdcDst, pdcSrc->dclevel.ppal);
/* Dereference the old font, reference the new one */
if (pdcDst->dclevel.plfnt) LFONT_ShareUnlockFont(pdcDst->dclevel.plfnt); /// @todo should aways be != NULL
GDIOBJ_vReferenceObjectByPointer(&pdcSrc->dclevel.plfnt->BaseObject);
pdcDst->dclevel.plfnt = pdcSrc->dclevel.plfnt;
/* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
if (!To)
{
IntGdiExtSelectClipRgn(pdcDst, pdcSrc->dclevel.prgnClip, RGN_COPY);
if (pdcDst->dclevel.prgnMeta)
{
REGION_Delete(pdcDst->dclevel.prgnMeta);
pdcDst->dclevel.prgnMeta = NULL;
}
if (pdcSrc->dclevel.prgnMeta)
{
pdcDst->dclevel.prgnMeta = IntSysCreateRectpRgn(0, 0, 0, 0);
IntGdiCombineRgn(pdcDst->dclevel.prgnMeta, pdcSrc->dclevel.prgnMeta, NULL, RGN_COPY);
}
pdcDst->fs |= DC_FLAG_DIRTY_RAO;
}
}
static
PREGION FASTCALL
DceGetVisRgn(PWND Window, ULONG Flags, HWND hWndChild, ULONG CFlags)
{
PREGION Rgn;
Rgn = VIS_ComputeVisibleRegion( Window,
0 == (Flags & DCX_WINDOW),
0 != (Flags & DCX_CLIPCHILDREN),
0 != (Flags & DCX_CLIPSIBLINGS));
/* Caller expects a non-null region */
if (!Rgn)
Rgn = IntSysCreateRectpRgn(0, 0, 0, 0);
return Rgn;
}
int
FASTCALL
IntGdiExtSelectClipRgn(
PDC dc,
PREGION prgn,
int fnMode)
{
if (fnMode == RGN_COPY)
{
if (!prgn)
{
if (dc->dclevel.prgnClip != NULL)
{
REGION_Delete(dc->dclevel.prgnClip);
dc->dclevel.prgnClip = NULL;
dc->fs |= DC_FLAG_DIRTY_RAO;
}
return SIMPLEREGION;
}
if (!dc->dclevel.prgnClip)
dc->dclevel.prgnClip = IntSysCreateRectpRgn(0, 0, 0, 0);
dc->fs |= DC_FLAG_DIRTY_RAO;
return IntGdiCombineRgn(dc->dclevel.prgnClip, prgn, NULL, RGN_COPY);
}
ASSERT(prgn != NULL);
if (!dc->dclevel.prgnClip)
{
RECTL rect;
REGION_GetRgnBox(dc->prgnVis, &rect);
dc->dclevel.prgnClip = IntSysCreateRectpRgnIndirect(&rect);
}
dc->fs |= DC_FLAG_DIRTY_RAO;
return IntGdiCombineRgn(dc->dclevel.prgnClip, dc->dclevel.prgnClip, prgn, fnMode);
}
INT FASTCALL
NEW_CLIPPING_UpdateGCRegion(PDC pDC)
{
CLIPOBJ * co;
/* Must have VisRgn set to a valid state! */
ASSERT (pDC->prgnVis);
if (pDC->prgnAPI)
{
REGION_Delete(pDC->prgnAPI);
pDC->prgnAPI = IntSysCreateRectpRgn(0,0,0,0);
}
if (pDC->prgnRao)
{
REGION_Delete(pDC->prgnRao);
pDC->prgnRao = IntSysCreateRectpRgn(0,0,0,0);
}
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);
}
}
IntGdiCombineRgn( pDC->prgnRao,
pDC->prgnVis,
pDC->prgnAPI,
RGN_AND);
RtlCopyMemory(&pDC->erclClip,
&((PROSRGNDATA)pDC->prgnRao)->rdh.rcBound,
sizeof(RECTL));
pDC->fs &= ~DC_FLAG_DIRTY_RAO;
IntGdiOffsetRgn(pDC->prgnRao, pDC->ptlDCOrig.x, pDC->ptlDCOrig.y);
// 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;
co = IntEngCreateClipRegion( ((PROSRGNDATA)pDC->prgnRao)->rdh.nCount,
((PROSRGNDATA)pDC->prgnRao)->Buffer,
&pDC->erclClip);
if (co)
{
if (pDC->rosdc.CombinedClip != NULL)
IntEngDeleteClipRegion(pDC->rosdc.CombinedClip);
pDC->rosdc.CombinedClip = co;
}
return IntGdiOffsetRgn(pDC->prgnRao, -pDC->ptlDCOrig.x, -pDC->ptlDCOrig.y);
}
BOOL
FASTCALL
IntSetDefaultRegion(PDC pdc)
{
PSURFACE pSurface;
PREGION prgn;
RECTL rclWnd, rclClip;
IntGdiReleaseRaoRgn(pdc);
rclWnd.left = 0;
rclWnd.top = 0;
rclWnd.right = pdc->dclevel.sizl.cx;
rclWnd.bottom = pdc->dclevel.sizl.cy;
rclClip = rclWnd;
//EngAcquireSemaphoreShared(pdc->ppdev->hsemDevLock);
if (pdc->ppdev->flFlags & PDEV_META_DEVICE)
{
pSurface = pdc->dclevel.pSurface;
if (pSurface && pSurface->flags & PDEV_SURFACE)
{
rclClip.left += pdc->ppdev->ptlOrigion.x;
rclClip.top += pdc->ppdev->ptlOrigion.y;
rclClip.right += pdc->ppdev->ptlOrigion.x;
rclClip.bottom += pdc->ppdev->ptlOrigion.y;
}
}
//EngReleaseSemaphore(pdc->ppdev->hsemDevLock);
prgn = pdc->prgnVis;
if (prgn && prgn != prgnDefault)
{
REGION_SetRectRgn( prgn,
rclClip.left,
rclClip.top,
rclClip.right ,
rclClip.bottom );
}
else
{
prgn = IntSysCreateRectpRgn( rclClip.left,
rclClip.top,
rclClip.right ,
rclClip.bottom );
pdc->prgnVis = prgn;
}
if (prgn)
{
pdc->ptlDCOrig.x = 0;
pdc->ptlDCOrig.y = 0;
pdc->erclWindow = rclWnd;
pdc->erclClip = rclClip;
/* Might be an InitDC or DCE... */
pdc->ptlFillOrigin.x = pdc->dcattr.VisRectRegion.Rect.right;
pdc->ptlFillOrigin.y = pdc->dcattr.VisRectRegion.Rect.bottom;
return TRUE;
}
pdc->prgnVis = prgnDefault;
return FALSE;
}
VOID
NTAPI
DC_vInitDc(
PDC pdc,
DCTYPE dctype,
PPDEVOBJ ppdev)
{
/* Setup some basic fields */
pdc->dctype = dctype;
pdc->ppdev = ppdev;
pdc->dhpdev = ppdev->dhpdev;
pdc->hsem = ppdev->hsemDevLock;
pdc->flGraphicsCaps = ppdev->devinfo.flGraphicsCaps;
pdc->flGraphicsCaps2 = ppdev->devinfo.flGraphicsCaps2;
pdc->fs = DC_DIRTY_RAO;
/* Setup dc attribute */
pdc->pdcattr = &pdc->dcattr;
pdc->dcattr.pvLDC = NULL;
pdc->dcattr.ulDirty_ = DIRTY_DEFAULT;
if (ppdev == gppdevPrimary)
pdc->dcattr.ulDirty_ |= DC_PRIMARY_DISPLAY;
/* Setup the DC size */
if (dctype == DCTYPE_MEMORY)
{
/* Memory DCs have a 1 x 1 bitmap by default */
pdc->dclevel.sizl.cx = 1;
pdc->dclevel.sizl.cy = 1;
}
else
{
/* Other DC's are as big as the related PDEV */
pdc->dclevel.sizl.cx = ppdev->gdiinfo.ulHorzRes;
pdc->dclevel.sizl.cy = ppdev->gdiinfo.ulVertRes;
}
/* Setup Window rect based on DC size */
pdc->erclWindow.left = 0;
pdc->erclWindow.top = 0;
pdc->erclWindow.right = pdc->dclevel.sizl.cx;
pdc->erclWindow.bottom = pdc->dclevel.sizl.cy;
if (dctype == DCTYPE_DIRECT)
{
/* Direct DCs get the surface from the PDEV */
pdc->dclevel.pSurface = PDEVOBJ_pSurface(ppdev);
pdc->erclBounds.left = 0x7fffffff;
pdc->erclBounds.top = 0x7fffffff;
pdc->erclBounds.right = 0x80000000;
pdc->erclBounds.bottom = 0x80000000;
pdc->erclBoundsApp.left = 0xffffffff;
pdc->erclBoundsApp.top = 0xfffffffc;
pdc->erclBoundsApp.right = 0x00007ffc; // FIXME
pdc->erclBoundsApp.bottom = 0x00000333; // FIXME
pdc->erclClip = pdc->erclBounds;
pdc->co = gxcoTrivial;
pdc->fs |= DC_SYNCHRONIZEACCESS | DC_ACCUM_APP | DC_PERMANANT | DC_DISPLAY;
}
else
{
/* Non-direct DCs don't have a surface by default */
pdc->dclevel.pSurface = NULL;
pdc->erclBounds.left = 0;
pdc->erclBounds.top = 0;
pdc->erclBounds.right = 0;
pdc->erclBounds.bottom = 0;
pdc->erclBoundsApp = pdc->erclBounds;
pdc->erclClip = pdc->erclWindow;
pdc->co = gxcoTrivial;
}
//pdc->dcattr.VisRectRegion:
/* Setup coordinate transformation data */
pdc->dclevel.mxWorldToDevice = gmxWorldToDeviceDefault;
pdc->dclevel.mxDeviceToWorld = gmxDeviceToWorldDefault;
pdc->dclevel.mxWorldToPage = gmxWorldToPageDefault;
pdc->dclevel.efM11PtoD = gef16;
pdc->dclevel.efM22PtoD = gef16;
pdc->dclevel.efDxPtoD = gef0;
pdc->dclevel.efDyPtoD = gef0;
pdc->dclevel.efM11_TWIPS = gef0;
pdc->dclevel.efM22_TWIPS = gef0;
pdc->dclevel.efPr11 = gef0;
pdc->dclevel.efPr22 = gef0;
pdc->dcattr.mxWorldToDevice = pdc->dclevel.mxWorldToDevice;
pdc->dcattr.mxDeviceToWorld = pdc->dclevel.mxDeviceToWorld;
pdc->dcattr.mxWorldToPage = pdc->dclevel.mxWorldToPage;
pdc->dcattr.efM11PtoD = pdc->dclevel.efM11PtoD;
pdc->dcattr.efM22PtoD = pdc->dclevel.efM22PtoD;
pdc->dcattr.efDxPtoD = pdc->dclevel.efDxPtoD;
pdc->dcattr.efDyPtoD = pdc->dclevel.efDyPtoD;
pdc->dcattr.iMapMode = MM_TEXT;
pdc->dcattr.dwLayout = 0;
pdc->dcattr.flXform = PAGE_TO_DEVICE_SCALE_IDENTITY |
PAGE_TO_DEVICE_IDENTITY |
WORLD_TO_PAGE_IDENTITY;
/* Setup more coordinates */
pdc->ptlDCOrig.x = 0;
pdc->ptlDCOrig.y = 0;
pdc->dcattr.lWindowOrgx = 0;
pdc->dcattr.ptlWindowOrg.x = 0;
pdc->dcattr.ptlWindowOrg.y = 0;
pdc->dcattr.szlWindowExt.cx = 1;
pdc->dcattr.szlWindowExt.cy = 1;
pdc->dcattr.ptlViewportOrg.x = 0;
pdc->dcattr.ptlViewportOrg.y = 0;
pdc->dcattr.szlViewportExt.cx = 1;
pdc->dcattr.szlViewportExt.cy = 1;
pdc->dcattr.szlVirtualDevicePixel.cx = ppdev->gdiinfo.ulHorzRes;
pdc->dcattr.szlVirtualDevicePixel.cy = ppdev->gdiinfo.ulVertRes;
pdc->dcattr.szlVirtualDeviceMm.cx = ppdev->gdiinfo.ulHorzSize;
pdc->dcattr.szlVirtualDeviceMm.cy = ppdev->gdiinfo.ulVertSize;
pdc->dcattr.szlVirtualDeviceSize.cx = 0;
pdc->dcattr.szlVirtualDeviceSize.cy = 0;
/* Setup regions */
pdc->prgnAPI = NULL;
pdc->prgnRao = NULL;
pdc->dclevel.prgnClip = NULL;
pdc->dclevel.prgnMeta = NULL;
/* Allocate a Vis region */
pdc->prgnVis = IntSysCreateRectpRgn(0, 0, pdc->dclevel.sizl.cx, pdc->dclevel.sizl.cy);
ASSERT(pdc->prgnVis);
/* Initialize Clip object */
IntEngInitClipObj(&pdc->co);
/* Setup palette */
pdc->dclevel.hpal = StockObjects[DEFAULT_PALETTE];
pdc->dclevel.ppal = PALETTE_ShareLockPalette(pdc->dclevel.hpal);
/* Setup path */
pdc->dclevel.hPath = NULL;
pdc->dclevel.flPath = 0;
// pdc->dclevel.lapath:
/* Setup colors */
pdc->dcattr.crBackgroundClr = RGB(0xff, 0xff, 0xff);
pdc->dcattr.ulBackgroundClr = RGB(0xff, 0xff, 0xff);
pdc->dcattr.crForegroundClr = RGB(0, 0, 0);
pdc->dcattr.ulForegroundClr = RGB(0, 0, 0);
pdc->dcattr.crBrushClr = RGB(0xff, 0xff, 0xff);
pdc->dcattr.ulBrushClr = RGB(0xff, 0xff, 0xff);
pdc->dcattr.crPenClr = RGB(0, 0, 0);
pdc->dcattr.ulPenClr = RGB(0, 0, 0);
/* Select the default fill and line brush */
pdc->dcattr.hbrush = StockObjects[WHITE_BRUSH];
pdc->dcattr.hpen = StockObjects[BLACK_PEN];
pdc->dclevel.pbrFill = BRUSH_ShareLockBrush(pdc->pdcattr->hbrush);
pdc->dclevel.pbrLine = PEN_ShareLockPen(pdc->pdcattr->hpen);
pdc->dclevel.ptlBrushOrigin.x = 0;
pdc->dclevel.ptlBrushOrigin.y = 0;
pdc->dcattr.ptlBrushOrigin = pdc->dclevel.ptlBrushOrigin;
/* Initialize EBRUSHOBJs */
EBRUSHOBJ_vInitFromDC(&pdc->eboFill, pdc->dclevel.pbrFill, pdc);
EBRUSHOBJ_vInitFromDC(&pdc->eboLine, pdc->dclevel.pbrLine, pdc);
EBRUSHOBJ_vInitFromDC(&pdc->eboText, pbrDefaultBrush, pdc);
EBRUSHOBJ_vInitFromDC(&pdc->eboBackground, pbrDefaultBrush, pdc);
/* Setup fill data */
pdc->dcattr.jROP2 = R2_COPYPEN;
pdc->dcattr.jBkMode = 2;
pdc->dcattr.lBkMode = 2;
pdc->dcattr.jFillMode = ALTERNATE;
pdc->dcattr.lFillMode = 1;
pdc->dcattr.jStretchBltMode = 1;
pdc->dcattr.lStretchBltMode = 1;
pdc->ptlFillOrigin.x = 0;
pdc->ptlFillOrigin.y = 0;
/* Setup drawing position */
pdc->dcattr.ptlCurrent.x = 0;
pdc->dcattr.ptlCurrent.y = 0;
pdc->dcattr.ptfxCurrent.x = 0;
pdc->dcattr.ptfxCurrent.y = 0;
/* Setup ICM data */
pdc->dclevel.lIcmMode = 0;
pdc->dcattr.lIcmMode = 0;
pdc->dcattr.hcmXform = NULL;
pdc->dcattr.flIcmFlags = 0;
pdc->dcattr.IcmBrushColor = CLR_INVALID;
pdc->dcattr.IcmPenColor = CLR_INVALID;
pdc->dcattr.pvLIcm = NULL;
pdc->dcattr.hColorSpace = NULL; // FIXME: 0189001f
pdc->dclevel.pColorSpace = NULL; // FIXME
pdc->pClrxFormLnk = NULL;
// pdc->dclevel.ca =
/* Setup font data */
pdc->hlfntCur = NULL; // FIXME: 2f0a0cf8
pdc->pPFFList = NULL;
pdc->flSimulationFlags = 0;
pdc->lEscapement = 0;
pdc->prfnt = NULL;
pdc->dcattr.flFontMapper = 0;
pdc->dcattr.flTextAlign = 0;
pdc->dcattr.lTextAlign = 0;
pdc->dcattr.lTextExtra = 0;
pdc->dcattr.lRelAbs = 1;
pdc->dcattr.lBreakExtra = 0;
pdc->dcattr.cBreak = 0;
pdc->dcattr.hlfntNew = StockObjects[SYSTEM_FONT];
pdc->dclevel.plfnt = LFONT_ShareLockFont(pdc->dcattr.hlfntNew);
/* Other stuff */
pdc->hdcNext = NULL;
pdc->hdcPrev = NULL;
pdc->ipfdDevMax = 0;
pdc->ulCopyCount = -1;
pdc->ptlDoBanding.x = 0;
pdc->ptlDoBanding.y = 0;
pdc->dclevel.lSaveDepth = 1;
pdc->dclevel.hdcSave = NULL;
pdc->dcattr.iGraphicsMode = GM_COMPATIBLE;
pdc->dcattr.iCS_CP = 0;
pdc->pSurfInfo = NULL;
if (defaultDCstate == NULL)
{
defaultDCstate = ExAllocatePoolWithTag(PagedPool, sizeof(DC), TAG_DC);
ASSERT(defaultDCstate);
RtlZeroMemory(defaultDCstate, sizeof(DC));
defaultDCstate->pdcattr = &defaultDCstate->dcattr;
DC_vCopyState(pdc, defaultDCstate, TRUE);
}
}
VOID
FASTCALL
DceUpdateVisRgn(DCE *Dce, PWND Window, ULONG Flags)
{
PREGION RgnVisible = NULL;
ULONG DcxFlags;
PWND DesktopWindow;
if (Flags & DCX_PARENTCLIP)
{
PWND Parent;
Parent = Window->spwndParent;
if (!Parent)
{
RgnVisible = NULL;
goto noparent;
}
if (Parent->style & WS_CLIPSIBLINGS)
{
DcxFlags = DCX_CLIPSIBLINGS |
(Flags & ~(DCX_CLIPCHILDREN | DCX_WINDOW));
}
else
{
DcxFlags = Flags & ~(DCX_CLIPSIBLINGS | DCX_CLIPCHILDREN | DCX_WINDOW);
}
RgnVisible = DceGetVisRgn(Parent, DcxFlags, Window->head.h, Flags);
}
else if (Window == NULL)
{
DesktopWindow = UserGetWindowObject(IntGetDesktopWindow());
if (NULL != DesktopWindow)
{
RgnVisible = IntSysCreateRectpRgnIndirect(&DesktopWindow->rcWindow);
}
else
{
RgnVisible = NULL;
}
}
else
{
RgnVisible = DceGetVisRgn(Window, Flags, 0, 0);
}
noparent:
if (Flags & DCX_INTERSECTRGN)
{
PREGION RgnClip = NULL;
if (Dce->hrgnClip != NULL)
RgnClip = REGION_LockRgn(Dce->hrgnClip);
if (RgnClip)
{
IntGdiCombineRgn(RgnVisible, RgnVisible, RgnClip, RGN_AND);
REGION_UnlockRgn(RgnClip);
}
else
{
if (RgnVisible != NULL)
{
REGION_Delete(RgnVisible);
}
RgnVisible = IntSysCreateRectpRgn(0, 0, 0, 0);
}
}
else if ((Flags & DCX_EXCLUDERGN) && Dce->hrgnClip != NULL)
{
PREGION RgnClip = REGION_LockRgn(Dce->hrgnClip);
IntGdiCombineRgn(RgnVisible, RgnVisible, RgnClip, RGN_DIFF);
REGION_UnlockRgn(RgnClip);
}
Dce->DCXFlags &= ~DCX_DCEDIRTY;
GdiSelectVisRgn(Dce->hDC, RgnVisible);
/* Tell GDI driver */
if (Window)
IntEngWindowChanged(Window, WOC_RGN_CLIENT);
if (RgnVisible != NULL)
{
REGION_Delete(RgnVisible);
}
}
