/* 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) ;
}
}
VOID FASTCALL
DceResetActiveDCEs(PWND Window)
{
DCE *pDCE;
PDC dc;
PWND CurrentWindow;
INT DeltaX;
INT DeltaY;
PLIST_ENTRY ListEntry;
if (NULL == Window)
{
return;
}
ListEntry = LEDce.Flink;
while (ListEntry != &LEDce)
{
pDCE = CONTAINING_RECORD(ListEntry, DCE, List);
ListEntry = ListEntry->Flink;
if (0 == (pDCE->DCXFlags & (DCX_DCEEMPTY|DCX_INDESTROY)))
{
if (Window->head.h == pDCE->hwndCurrent)
{
CurrentWindow = Window;
}
else
{
if (!pDCE->hwndCurrent)
CurrentWindow = NULL;
else
CurrentWindow = UserGetWindowObject(pDCE->hwndCurrent);
if (NULL == CurrentWindow)
{
continue;
}
}
if (!GreIsHandleValid(pDCE->hDC) ||
(dc = DC_LockDc(pDCE->hDC)) == NULL)
{
continue;
}
if (Window == CurrentWindow || IntIsChildWindow(Window, CurrentWindow))
{
if (pDCE->DCXFlags & DCX_WINDOW)
{
DeltaX = CurrentWindow->rcWindow.left - dc->ptlDCOrig.x;
DeltaY = CurrentWindow->rcWindow.top - dc->ptlDCOrig.y;
dc->ptlDCOrig.x = CurrentWindow->rcWindow.left;
dc->ptlDCOrig.y = CurrentWindow->rcWindow.top;
}
else
{
DeltaX = CurrentWindow->rcClient.left - dc->ptlDCOrig.x;
DeltaY = CurrentWindow->rcClient.top - dc->ptlDCOrig.y;
dc->ptlDCOrig.x = CurrentWindow->rcClient.left;
dc->ptlDCOrig.y = CurrentWindow->rcClient.top;
}
if (NULL != dc->dclevel.prgnClip)
{
REGION_bOffsetRgn(dc->dclevel.prgnClip, DeltaX, DeltaY);
dc->fs |= DC_FLAG_DIRTY_RAO;
}
if (NULL != pDCE->hrgnClip)
{
NtGdiOffsetRgn(pDCE->hrgnClip, DeltaX, DeltaY);
}
}
DC_UnlockDc(dc);
DceUpdateVisRgn(pDCE, CurrentWindow, pDCE->DCXFlags);
IntGdiSetHookFlags(pDCE->hDC, DCHF_VALIDATEVISRGN);
}
}
}
HDC FASTCALL
UserGetDCEx(PWND Wnd OPTIONAL, HANDLE ClipRegion, ULONG Flags)
{
PWND Parent;
ULONG DcxFlags;
DCE* Dce = NULL;
BOOL UpdateClipOrigin = FALSE;
BOOL bUpdateVisRgn = TRUE;
HDC hDC = NULL;
PPROCESSINFO ppi;
PLIST_ENTRY ListEntry;
if (NULL == Wnd)
{
Flags &= ~DCX_USESTYLE;
Flags |= DCX_CACHE;
}
if (Flags & DCX_PARENTCLIP) Flags |= DCX_CACHE;
// When GetDC is called with hWnd nz, DCX_CACHE & _WINDOW are clear w _USESTYLE set.
if (Flags & DCX_USESTYLE)
{
Flags &= ~(DCX_CLIPCHILDREN | DCX_CLIPSIBLINGS | DCX_PARENTCLIP);
if (!(Flags & DCX_WINDOW)) // Not window rectangle
{
if (Wnd->pcls->style & CS_PARENTDC)
{
Flags |= DCX_PARENTCLIP;
}
if (!(Flags & DCX_CACHE) && // Not on the cheap wine list.
!(Wnd->pcls->style & CS_OWNDC) )
{
if (!(Wnd->pcls->style & CS_CLASSDC))
// The window is not POWNED or has any CLASS, so we are looking for cheap wine.
Flags |= DCX_CACHE;
else
{
if (Wnd->pcls->pdce) hDC = ((PDCE)Wnd->pcls->pdce)->hDC;
TRACE("We have CLASS!!\n");
}
}
if (Wnd->style & WS_CLIPSIBLINGS)
{
Flags |= DCX_CLIPSIBLINGS;
}
if (Wnd->style & WS_CLIPCHILDREN &&
!(Wnd->style & WS_MINIMIZE))
{
Flags |= DCX_CLIPCHILDREN;
}
/* If minized with icon in the set, we are forced to be cheap! */
if (Wnd->style & WS_MINIMIZE && Wnd->pcls->spicn)
{
Flags |= DCX_CACHE;
}
}
else
{
if (Wnd->style & WS_CLIPSIBLINGS) Flags |= DCX_CLIPSIBLINGS;
Flags |= DCX_CACHE;
}
}
if (Flags & DCX_WINDOW) Flags &= ~DCX_CLIPCHILDREN;
if (Flags & DCX_NOCLIPCHILDREN)
{
Flags |= DCX_CACHE;
Flags &= ~(DCX_PARENTCLIP | DCX_CLIPCHILDREN);
}
Parent = (Wnd ? Wnd->spwndParent : NULL);
if (NULL == Wnd || !(Wnd->style & WS_CHILD) || NULL == Parent)
{
Flags &= ~DCX_PARENTCLIP;
Flags |= DCX_CLIPSIBLINGS;
}
/* It seems parent clip is ignored when clipping siblings or children */
if (Flags & (DCX_CLIPSIBLINGS | DCX_CLIPCHILDREN)) Flags &= ~DCX_PARENTCLIP;
if (Flags & DCX_PARENTCLIP)
{
if ((Wnd->style & WS_VISIBLE) &&
(Parent->style & WS_VISIBLE))
{
Flags &= ~DCX_CLIPCHILDREN;
if (Parent->style & WS_CLIPSIBLINGS)
{
Flags |= DCX_CLIPSIBLINGS;
}
}
}
// Window nz, check to see if we still own this or it is just cheap wine tonight.
if (!(Flags & DCX_CACHE))
{
if ( Wnd->head.pti != GetW32ThreadInfo())
Flags |= DCX_CACHE; // Ah~ Not Powned! Forced to be cheap~
}
DcxFlags = Flags & DCX_CACHECOMPAREMASK;
if (Flags & DCX_CACHE)
{ // Scan the cheap wine list for our match.
DCE* DceEmpty = NULL;
DCE* DceUnused = NULL;
KeEnterCriticalRegion();
ListEntry = LEDce.Flink;
while (ListEntry != &LEDce)
{
Dce = CONTAINING_RECORD(ListEntry, DCE, List);
ListEntry = ListEntry->Flink;
//
// The way I understand this, you can have more than one DC per window.
// Only one Owned if one was requested and saved and one Cached.
//
if ((Dce->DCXFlags & (DCX_CACHE | DCX_DCEBUSY)) == DCX_CACHE)
{
DceUnused = Dce;
if (Dce->DCXFlags & DCX_DCEEMPTY)
{
DceEmpty = Dce;
}
else if (Dce->hwndCurrent == (Wnd ? Wnd->head.h : NULL) &&
((Dce->DCXFlags & DCX_CACHECOMPAREMASK) == DcxFlags))
{
UpdateClipOrigin = TRUE;
break;
}
}
Dce = NULL; // Loop issue?
}
KeLeaveCriticalRegion();
Dce = (DceEmpty == NULL) ? DceUnused : DceEmpty;
if (Dce == NULL)
{
Dce = DceAllocDCE(NULL, DCE_CACHE_DC);
}
if (Dce == NULL) return NULL;
Dce->hwndCurrent = (Wnd ? Wnd->head.h : NULL);
Dce->pwndOrg = Dce->pwndClip = Wnd;
}
else // If we are here, we are POWNED or having CLASS.
{
KeEnterCriticalRegion();
ListEntry = LEDce.Flink;
while (ListEntry != &LEDce)
{
Dce = CONTAINING_RECORD(ListEntry, DCE, List);
ListEntry = ListEntry->Flink;
// Skip Cache DCE entries.
if (!(Dce->DCXFlags & DCX_CACHE))
{
// Check for Window handle than HDC match for CLASS.
if (Dce->hwndCurrent == Wnd->head.h)
{
bUpdateVisRgn = FALSE;
break;
}
else if (Dce->hDC == hDC) break;
}
Dce = NULL; // Loop issue?
}
KeLeaveCriticalRegion();
if (Dce == NULL)
{
return(NULL);
}
if ( (Flags & (DCX_INTERSECTRGN|DCX_EXCLUDERGN)) &&
(Dce->DCXFlags & (DCX_INTERSECTRGN|DCX_EXCLUDERGN)) )
{
DceDeleteClipRgn(Dce);
}
}
// First time use hax, need to use DceAllocDCE during window display init.
if (NULL == Dce)
{
return(NULL);
}
if (!GreIsHandleValid(Dce->hDC))
{
ERR("FIXME: Got DCE with invalid hDC! %p\n", Dce->hDC);
Dce->hDC = DceCreateDisplayDC();
/* FIXME: Handle error */
}
Dce->DCXFlags = Flags | DCX_DCEBUSY;
/*
* Bump it up! This prevents the random errors in wine dce tests and with
* proper bits set in DCX_CACHECOMPAREMASK.
* Reference:
* http://www.reactos.org/archives/public/ros-dev/2008-July/010498.html
* http://www.reactos.org/archives/public/ros-dev/2008-July/010499.html
*/
RemoveEntryList(&Dce->List);
InsertHeadList(&LEDce, &Dce->List);
/* Introduced in rev 6691 and modified later. */
if ( (Flags & DCX_INTERSECTUPDATE) && !ClipRegion )
{
Flags |= DCX_INTERSECTRGN | DCX_KEEPCLIPRGN;
Dce->DCXFlags |= DCX_INTERSECTRGN | DCX_KEEPCLIPRGN;
ClipRegion = Wnd->hrgnUpdate;
bUpdateVisRgn = TRUE;
}
if (ClipRegion == HRGN_WINDOW)
{
if (!(Flags & DCX_WINDOW))
{
Dce->hrgnClip = NtGdiCreateRectRgn(
Wnd->rcClient.left,
Wnd->rcClient.top,
Wnd->rcClient.right,
Wnd->rcClient.bottom);
}
else
{
Dce->hrgnClip = NtGdiCreateRectRgn(
Wnd->rcWindow.left,
Wnd->rcWindow.top,
Wnd->rcWindow.right,
Wnd->rcWindow.bottom);
}
Dce->DCXFlags &= ~DCX_KEEPCLIPRGN;
bUpdateVisRgn = TRUE;
}
else if (ClipRegion != NULL)
{
if (Dce->hrgnClip != NULL)
{
ERR("Should not be called!!\n");
GreDeleteObject(Dce->hrgnClip);
Dce->hrgnClip = NULL;
}
Dce->hrgnClip = ClipRegion;
bUpdateVisRgn = TRUE;
}
if (IntGdiSetHookFlags(Dce->hDC, DCHF_VALIDATEVISRGN)) bUpdateVisRgn = TRUE;
DceSetDrawable(Wnd, Dce->hDC, Flags, UpdateClipOrigin);
if (bUpdateVisRgn) DceUpdateVisRgn(Dce, Wnd, Flags);
if (Dce->DCXFlags & DCX_CACHE)
{
TRACE("ENTER!!!!!! DCX_CACHE!!!!!! hDC-> %p\n", Dce->hDC);
// Need to set ownership so Sync dcattr will work.
GreSetDCOwner(Dce->hDC, GDI_OBJ_HMGR_POWNED);
Dce->ptiOwner = GetW32ThreadInfo(); // Set the temp owning
}
if ( Wnd &&
Wnd->ExStyle & WS_EX_LAYOUTRTL &&
!(Flags & DCX_KEEPLAYOUT) )
{
NtGdiSetLayout(Dce->hDC, -1, LAYOUT_RTL);
}
if (Dce->DCXFlags & DCX_PROCESSOWNED)
{
ppi = PsGetCurrentProcessWin32Process();
ppi->W32PF_flags |= W32PF_OWNDCCLEANUP;
Dce->ptiOwner = NULL;
Dce->ppiOwner = ppi;
}
return(Dce->hDC);
}
/***********************************************************************
* DceFreeWindowDCE
*
* Remove owned DCE and reset unreleased cache DCEs.
*/
void FASTCALL
DceFreeWindowDCE(PWND Window)
{
PDCE pDCE;
PLIST_ENTRY ListEntry;
if (DCECount <= 0)
{
ERR("FreeWindowDCE No Entry! %d\n",DCECount);
return;
}
ListEntry = LEDce.Flink;
while (ListEntry != &LEDce)
{
pDCE = CONTAINING_RECORD(ListEntry, DCE, List);
ListEntry = ListEntry->Flink;
if ( pDCE->hwndCurrent == Window->head.h &&
!(pDCE->DCXFlags & DCX_DCEEMPTY) )
{
if (!(pDCE->DCXFlags & DCX_CACHE)) /* Owned or Class DCE */
{
if (Window->pcls->style & CS_CLASSDC) /* Test Class first */
{
if (pDCE->DCXFlags & (DCX_INTERSECTRGN | DCX_EXCLUDERGN)) /* Class DCE */
DceDeleteClipRgn(pDCE);
// Update and reset Vis Rgn and clear the dirty bit.
// Should release VisRgn than reset it to default.
DceUpdateVisRgn(pDCE, Window, pDCE->DCXFlags);
pDCE->DCXFlags = DCX_DCEEMPTY|DCX_CACHE;
pDCE->hwndCurrent = 0;
pDCE->pwndOrg = pDCE->pwndClip = NULL;
TRACE("POWNED DCE going Cheap!! DCX_CACHE!! hDC-> %p \n",
pDCE->hDC);
if (!GreSetDCOwner( pDCE->hDC, GDI_OBJ_HMGR_NONE))
{
ERR("Fail Owner Switch hDC-> %p \n", pDCE->hDC);
break;
}
/* Do not change owner so thread can clean up! */
}
else if (Window->pcls->style & CS_OWNDC) /* Owned DCE */
{
DceFreeDCE(pDCE, FALSE);
continue;
}
else
{
ERR("Not POWNED or CLASSDC hwndCurrent -> %p \n",
pDCE->hwndCurrent);
// ASSERT(FALSE); /* bug 5320 */
}
}
else
{
if (pDCE->DCXFlags & DCX_DCEBUSY) /* Shared cache DCE */
{
/* FIXME: AFAICS we are doing the right thing here so
* this should be a TRACE. But this is best left as an ERR
* because the 'application error' is likely to come from
* another part of Wine (i.e. it's our fault after all).
* We should change this to TRACE when ReactOS is more stable
* (for 1.0?).
*/
ERR("[%p] GetDC() without ReleaseDC()!\n", Window->head.h);
DceReleaseDC(pDCE, FALSE);
}
pDCE->DCXFlags |= DCX_DCEEMPTY;
pDCE->hwndCurrent = 0;
pDCE->pwndOrg = pDCE->pwndClip = NULL;
}
}
}
}
static INT FASTCALL
DceReleaseDC(DCE* dce, BOOL EndPaint)
{
if (DCX_DCEBUSY != (dce->DCXFlags & (DCX_INDESTROY | DCX_DCEEMPTY | DCX_DCEBUSY)))
{
return 0;
}
/* Restore previous visible region */
if (EndPaint)
{
DceUpdateVisRgn(dce, dce->pwndOrg, dce->DCXFlags);
}
if ((dce->DCXFlags & (DCX_INTERSECTRGN | DCX_EXCLUDERGN)) &&
((dce->DCXFlags & DCX_CACHE) || EndPaint))
{
DceDeleteClipRgn(dce);
}
if (dce->DCXFlags & DCX_CACHE)
{
if (!(dce->DCXFlags & DCX_NORESETATTRS))
{
// Clean the DC
if (!IntGdiCleanDC(dce->hDC)) return 0;
if (dce->DCXFlags & DCX_DCEDIRTY)
{
/* Don't keep around invalidated entries
* because SetDCState() disables hVisRgn updates
* by removing dirty bit. */
dce->hwndCurrent = 0;
dce->pwndOrg = NULL;
dce->pwndClip = NULL;
dce->DCXFlags &= DCX_CACHE;
dce->DCXFlags |= DCX_DCEEMPTY;
}
}
dce->DCXFlags &= ~DCX_DCEBUSY;
TRACE("Exit!!!!! DCX_CACHE!!!!!! hDC-> %p \n", dce->hDC);
if (!GreSetDCOwner(dce->hDC, GDI_OBJ_HMGR_NONE))
return 0;
dce->ptiOwner = NULL; // Reset ownership.
dce->ppiOwner = NULL;
#if 0 // Need to research and fix before this is a "growing" issue.
if (++DCECache > 32)
{
ListEntry = LEDce.Flink;
while (ListEntry != &LEDce)
{
pDCE = CONTAINING_RECORD(ListEntry, DCE, List);
ListEntry = ListEntry->Flink;
if (!(pDCE->DCXFlags & DCX_DCEBUSY))
{ /* Free the unused cache DCEs. */
DceFreeDCE(pDCE, TRUE);
}
}
}
#endif
}
return 1; // Released!
}