[jimtabor] 33879: This does fix bug 3237. I've run this patch for two months now, it is still in the rough and needs cleaning up. Separates Owned and Class styles and gives them their own DCes.
7 Jun
2008
7 Jun
'08
2:58 a.m.
Author: jimtabor
Date: Fri Jun 6 21:58:15 2008
New Revision: 33879
URL: http://svn.reactos.org/svn/reactos?rev=33879&view=rev
Log:
This does fix bug 3237. I've run this patch for two months now, it is still in the
rough and needs cleaning up. Separates Owned and Class styles and gives them their own
DCes.
Modified:
trunk/reactos/subsystems/win32/win32k/include/dce.h
trunk/reactos/subsystems/win32/win32k/ntuser/class.c
trunk/reactos/subsystems/win32/win32k/ntuser/windc.c
trunk/reactos/subsystems/win32/win32k/ntuser/window.c
Modified: trunk/reactos/subsystems/win32/win32k/include/dce.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/in…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/include/dce.h [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/include/dce.h [iso-8859-1] Fri Jun 6 21:58:15
2008
@@ -30,10 +30,8 @@
HWND hwndCurrent;
HWND hwndDC;
HRGN hClipRgn;
- PVOID Class;
DWORD DCXFlags;
PEPROCESS pProcess;
- DWORD Count;
HANDLE Self;
} DCE; /* PDCE already declared at top of file */
@@ -58,5 +56,6 @@
void FASTCALL DceFreeWindowDCE(PWINDOW_OBJECT Window);
void FASTCALL DceEmptyCache(void);
VOID FASTCALL DceResetActiveDCEs(PWINDOW_OBJECT Window);
+void FASTCALL DceFreeClassDCE(HDC);
#endif /* _WIN32K_DCE_H */
Modified: trunk/reactos/subsystems/win32/win32k/ntuser/class.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/class.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/class.c [iso-8859-1] Fri Jun 6 21:58:15
2008
@@ -76,6 +76,12 @@
CallProc = NextCallProc;
}
+ if (Class->Dce)
+ {
+ DceFreeClassDCE(((PDCE)Class->Dce)->hDC);
+ Class->Dce = NULL;
+ }
+
IntFreeClassMenuName(Class);
}
Modified: trunk/reactos/subsystems/win32/win32k/ntuser/windc.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/windc.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/windc.c [iso-8859-1] Fri Jun 6 21:58:15
2008
@@ -73,29 +73,8 @@
{
PDCE pDce;
PWINDOW Wnd = NULL;
- PVOID Class = NULL;
if (Window) Wnd = Window->Wnd;
-
- if (Wnd) Class = Wnd->Class;
-
- if (Type == DCE_CLASS_DC)
- {
- PDCE pdce;
- KeEnterCriticalRegion();
- pdce = FirstDce;
- do
- {
- if (pdce->Class == Class)
- {
- pdce->Count++;
- KeLeaveCriticalRegion();
- return pdce;
- }
- pdce = (PDCE)pdce->List.Flink;
- } while (pdce != FirstDce);
- KeLeaveCriticalRegion();
- }
pDce = ExAllocatePoolWithTag(PagedPool, sizeof(DCE), TAG_PDCE);
if(!pDce)
@@ -111,8 +90,6 @@
pDce->hwndCurrent = (Window ? Window->hSelf : NULL);
pDce->hClipRgn = NULL;
pDce->pProcess = NULL;
- pDce->Class = Class;
- pDce->Count = 1;
KeEnterCriticalRegion();
if (FirstDce == NULL)
@@ -233,7 +210,6 @@
// Clean the DC
if (!IntGdiCleanDC(dce->hDC)) return 0;
- dce->DCXFlags &= ~DCX_DCEBUSY;
if (dce->DCXFlags & DCX_DCEDIRTY)
{
/* don't keep around invalidated entries
@@ -254,12 +230,13 @@
DC_UnlockDc(dc);
}
}
+ dce->DCXFlags &= ~DCX_DCEBUSY;
DPRINT("Exit!!!!! DCX_CACHE!!!!!! hDC-> %x \n", dce->hDC);
if (!IntGdiSetDCOwnerEx( dce->hDC, GDI_OBJ_HMGR_NONE, FALSE))
return 0;
dce->pProcess = NULL; // Reset ownership.
}
- return 1;
+ return 1; // Released!
}
static VOID FASTCALL
@@ -352,40 +329,54 @@
{
PWINDOW_OBJECT Parent;
ULONG DcxFlags;
- DCE* Dce;
+ DCE* Dce = NULL;
BOOL UpdateVisRgn = TRUE;
BOOL UpdateClipOrigin = FALSE;
PWINDOW Wnd = NULL;
+ HDC hDC = NULL;
if (NULL == Window)
- { // Do the same as GetDC with a NULL.
-// Window = UserGetWindowObject(IntGetDesktopWindow());
-// if (Window) Wnd = Window->Wnd;
-// else
- Flags &= ~DCX_USESTYLE;
+ {
+ Flags &= ~DCX_USESTYLE;
+ Flags |= DCX_CACHE;
}
else
Wnd = Window->Wnd;
- if (NULL == Window || NULL == Window->Dce)
- {
- Flags |= DCX_CACHE;
- }
-
+ if (Flags & (DCX_WINDOW | 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 (Wnd->Style & WS_CLIPSIBLINGS)
- {
- Flags |= DCX_CLIPSIBLINGS;
- }
-
- if (!(Flags & DCX_WINDOW))
+ if (!(Flags & DCX_WINDOW)) // not window rectangle
{
if (Wnd->Class->Style & CS_PARENTDC)
{
Flags |= DCX_PARENTCLIP;
+ }
+
+ if (!(Flags & DCX_CACHE) && // Not on the cheap wine list.
+ !(Wnd->Class->Style & CS_OWNDC) )
+ {
+ if (!(Wnd->Class->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->Class->Dce) hDC = ((PDCE)Wnd->Class->Dce)->hDC;
+ DPRINT("We have CLASS!!\n");
+ }
+ }
+/* else // For Testing!
+ {
+ DPRINT1("We have POWNER!!\n");
+ if (Window->Dce) DPRINT1("We have POWNER with DCE!!\n");
+ }
+*/
+ if (Wnd->Style & WS_CLIPSIBLINGS)
+ {
+ Flags |= DCX_CLIPSIBLINGS;
}
if (Wnd->Style & WS_CLIPCHILDREN &&
@@ -396,9 +387,12 @@
}
else
{
+ if (Wnd->Style & WS_CLIPSIBLINGS) Flags |= DCX_CLIPSIBLINGS;
Flags |= DCX_CACHE;
}
}
+
+ if (Flags & DCX_WINDOW) Flags &= ~DCX_CLIPCHILDREN;
if (Flags & DCX_NOCLIPCHILDREN)
{
@@ -406,20 +400,19 @@
Flags &= ~(DCX_PARENTCLIP | DCX_CLIPCHILDREN);
}
- if (Flags & DCX_WINDOW)
- {
- Flags = (Flags & ~DCX_CLIPCHILDREN) | DCX_CACHE;
- }
-
Parent = (Window ? Window->Parent : NULL);
if (NULL == Window || !(Wnd->Style & WS_CHILD) || NULL == Parent)
{
Flags &= ~DCX_PARENTCLIP;
- }
- else if (Flags & DCX_PARENTCLIP)
- {
- Flags |= DCX_CACHE;
+ 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->Wnd->Style & WS_VISIBLE))
{
@@ -431,10 +424,26 @@
}
}
+ // Window nz, check to see if we still own this or it is just cheap wine tonight.
+ if (!(Flags & DCX_CACHE))
+ {
+ if ( Wnd->ti != GetW32ThreadInfo()) Flags |= DCX_CACHE; // Ah~ Not Powned!
Forced to be cheap~
+ // Can only have one POWNED or CLASS.
+ if ( !Window->Dce && (Wnd->Class->Style & CS_OWNDC))
+ Window->Dce = DceAllocDCE(NULL, DCE_WINDOW_DC);
+ else
+ Flags |= DCX_CACHE;
+
+ if ( !Wnd->Class->Dce && (Wnd->Class->Style & CS_CLASSDC))
+ Wnd->Class->Dce = DceAllocDCE(NULL, DCE_CLASS_DC);
+ else
+ Flags |= DCX_CACHE;
+ }
+
DcxFlags = Flags & DCX_CACHECOMPAREMASK;
if (Flags & DCX_CACHE)
- {
+ { // Scan the cheap wine list for our match.
DCE* DceEmpty = NULL;
DCE* DceUnused = NULL;
KeEnterCriticalRegion();
@@ -444,6 +453,7 @@
// The reason for this you may ask?
// Well, it seems ReactOS calls GetDC with out first creating a desktop DC window!
// Need to test for null here. Not sure if this is a bug or a feature.
+// First time use hax, need to use DceAllocDCE during window display init.
if (!Dce) break;
if ((Dce->DCXFlags & (DCX_CACHE | DCX_DCEBUSY)) == DCX_CACHE)
@@ -474,26 +484,41 @@
{
Dce = DceAllocDCE(NULL, DCE_CACHE_DC);
}
- }
- else
- {
- Dce = Window->Dce;
+
+ Dce->hwndCurrent = (Window ? Window->hSelf : NULL);
+ }
+ else // If we are here, we are POWNED or having CLASS.
+ {
+ KeEnterCriticalRegion();
+ Dce = FirstDce;
+ do
+ { // Check for Window handle than HDC match for CLASS.
+ if ((Dce->hwndCurrent == Window->hSelf) || (Dce->hDC == hDC)) break;
+ Dce = (PDCE)Dce->List.Flink;
+ } while (Dce != FirstDce);
+ KeLeaveCriticalRegion();
+
+ DPRINT("DCX:Flags -> %x:%x\n",Dce->DCXFlags & DCX_CACHE, Flags
& DCX_CACHE);
+
if (Dce->hwndCurrent == Window->hSelf)
{
- UpdateVisRgn = FALSE; /* updated automatically, via DCHook() */
+ DPRINT("Owned DCE!\n");
+ UpdateVisRgn = FALSE; /* updated automatically, via DCHook() */
}
else
{
+ DPRINT("Owned/Class DCE\n");
/* we should free dce->clip_rgn here, but Windows apparently doesn't */
- Dce->DCXFlags &= ~(DCX_EXCLUDERGN | DCX_INTERSECTRGN);
- Dce->hClipRgn = NULL;
- }
+ Dce->DCXFlags &= ~(DCX_EXCLUDERGN | DCX_INTERSECTRGN);
+ Dce->hClipRgn = NULL;
+ }
+
#if 1 /* FIXME */
UpdateVisRgn = TRUE;
#endif
-
- }
-
+ }
+
+// First time use hax, need to use DceAllocDCE during window display init.
if (NULL == Dce)
{
return(NULL);
@@ -501,15 +526,14 @@
if (!GDIOBJ_ValidateHandle(Dce->hDC, GDI_OBJECT_TYPE_DC))
{
- DPRINT1("FIXME: Got DCE with invalid hDC!\n");
+ DPRINT1("FIXME: Got DCE with invalid hDC! 0x%x\n", Dce->hDC);
Dce->hDC = DceCreateDisplayDC();
/* FIXME: Handle error */
}
- Dce->hwndCurrent = (Window ? Window->hSelf : NULL);
Dce->DCXFlags = Flags | DCX_DCEBUSY;
-
- if (0 == (Flags & (DCX_EXCLUDERGN | DCX_INTERSECTRGN)) && NULL !=
ClipRegion)
+
+ if (!(Flags & (DCX_EXCLUDERGN | DCX_INTERSECTRGN)) && ClipRegion)
{
if (!(Flags & DCX_KEEPCLIPRGN))
NtGdiDeleteObject(ClipRegion);
@@ -583,10 +607,12 @@
if (Force && !GDIOBJ_OwnedByCurrentProcess(pdce->hDC))
{
- DPRINT1("Change ownership for DCE!\n");
+ DPRINT("Change ownership for DCE! -> %x\n" , pdce);
// Note: Windows sets W32PF_OWNDCCLEANUP and moves on.
if (!IsObjectDead((HGDIOBJ) pdce->hDC))
+ {
DC_SetOwnership( pdce->hDC, PsGetCurrentProcess());
+ }
else
{
DPRINT1("Attempted to change ownership of an DCEhDC 0x%x currently being
destroyed!!!\n",pdce->hDC);
@@ -614,6 +640,7 @@
return ret;
}
+
/***********************************************************************
* DceFreeWindowDCE
@@ -681,6 +708,25 @@
KeLeaveCriticalRegion();
}
+void FASTCALL
+DceFreeClassDCE(HDC hDC)
+{
+ PDCE pDCE = FirstDce;
+ KeEnterCriticalRegion();
+ do
+ {
+ if(!pDCE) break;
+ if (pDCE->hDC == hDC)
+ {
+ pDCE = DceFreeDCE(pDCE, FALSE);
+ if(!pDCE) break;
+ continue;
+ }
+ pDCE = (PDCE)pDCE->List.Flink;
+ } while (pDCE != FirstDce);
+ KeLeaveCriticalRegion();
+}
+
VOID FASTCALL
DceEmptyCache()
{
@@ -713,6 +759,7 @@
if(!pDCE) return; // Another null test!
do
{
+ if(!pDCE) break;
if (0 == (pDCE->DCXFlags & DCX_DCEEMPTY))
{
if (Window->hSelf == pDCE->hwndCurrent)
@@ -774,23 +821,6 @@
}
pDCE =(PDCE) pDCE->List.Flink;
} while (pDCE != FirstDce);
-}
-
-HDC
-FASTCALL
-IntGetDC(PWINDOW_OBJECT Window)
-{
- if (!Window)
- { // MSDN:
- //"hWnd [in] Handle to the window whose DC is to be retrieved.
- // If this value is NULL, GetDC retrieves the DC for the entire screen."
- Window = UserGetWindowObject(IntGetDesktopWindow());
- if (Window)
- return UserGetDCEx(Window, NULL, DCX_CACHE | DCX_WINDOW);
- else
- return NULL;
- }
- return UserGetDCEx(Window, NULL, DCX_USESTYLE);
}
HWND FASTCALL
@@ -825,6 +855,7 @@
KeEnterCriticalRegion();
do
{
+ if(!dce) break;
if (dce->hDC == hDc)
{
Hit = TRUE;
@@ -863,7 +894,6 @@
{
RETURN(NULL);
}
-
RETURN( UserGetDCEx(Wnd, ClipRegion, Flags));
CLEANUP:
@@ -893,7 +923,8 @@
HDC STDCALL
NtUserGetDC(HWND hWnd)
{
-// We have a problem here! Should call IntGetDC.
+ DPRINT("NtUGetDC -> %x:%x\n", hWnd, !hWnd ? DCX_CACHE | DCX_WINDOW :
DCX_USESTYLE );
+
return NtUserGetDCEx(hWnd, NULL, NULL == hWnd ? DCX_CACHE | DCX_WINDOW : DCX_USESTYLE);
}
Modified: trunk/reactos/subsystems/win32/win32k/ntuser/window.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/window.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/window.c [iso-8859-1] Fri Jun 6 21:58:15
2008
@@ -1791,9 +1791,11 @@
InsertTailList (&PsGetCurrentThreadWin32Thread()->WindowListHead,
&Window->ThreadListEntry);
/* Handle "CS_CLASSDC", it is tested first. */
- if (dwStyle & CS_CLASSDC) Window->Dce = DceAllocDCE(Window, DCE_CLASS_DC);
+ if ((Wnd->Class->Style & CS_CLASSDC) && !(Wnd->Class->Dce)) //
One DCE per class to have CLASS.
+ Wnd->Class->Dce = DceAllocDCE(Window, DCE_CLASS_DC);
/* Allocate a DCE for this window. */
- else if (dwStyle & CS_OWNDC) Window->Dce = DceAllocDCE(Window, DCE_WINDOW_DC);
+ else if ( Wnd->Class->Style & CS_OWNDC)
+ Window->Dce = DceAllocDCE(Window, DCE_WINDOW_DC);
Pos.x = x;
Pos.y = y;
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