[jimtabor] 27804: Removed Dce from the DC handle table. Tested bootcd, Explorer and Taskmgr.

Author: jimtabor
Date: Wed Jul 25 07:35:59 2007
New Revision: 27804

URL: http://svn.reactos.org/svn/reactos?rev=27804&view=rev
Log:
Removed Dce from the DC handle table. Tested bootcd, Explorer and Taskmgr.

Modified:
    trunk/reactos/include/reactos/win32k/ntgdihdl.h
    trunk/reactos/subsystems/win32/win32k/include/dce.h
    trunk/reactos/subsystems/win32/win32k/include/tags.h
    trunk/reactos/subsystems/win32/win32k/ntuser/windc.c
    trunk/reactos/subsystems/win32/win32k/objects/gdiobj.c

Modified: trunk/reactos/include/reactos/win32k/ntgdihdl.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/reactos/win32k/ntg…
==============================================================================
--- trunk/reactos/include/reactos/win32k/ntgdihdl.h (original)
+++ trunk/reactos/include/reactos/win32k/ntgdihdl.h Wed Jul 25 07:35:59 2007
@@ -50,7 +50,6 @@
 /* Following object types made up for ROS */
 #define GDI_OBJECT_TYPE_ENHMETADC   0x00740000
 #define GDI_OBJECT_TYPE_MEMDC       0x00750000
-#define GDI_OBJECT_TYPE_DCE         0x00770000
 #define GDI_OBJECT_TYPE_DONTCARE    0x007f0000
 /** Not really an object type. Forces GDI_FreeObj to be silent. */
 #define GDI_OBJECT_TYPE_SILENT      0x80000000

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 (original)
+++ trunk/reactos/subsystems/win32/win32k/include/dce.h Wed Jul 25 07:35:59 2007
@@ -32,24 +32,21 @@
     HRGN         hClipRgn;
     DCE_TYPE     type;
     DWORD        DCXFlags;
+    PEPROCESS    pProcess;
     HANDLE       Self;
 } DCE;  /* PDCE already declared at top of file */
 
-/* internal DCX flags */
+/* internal DCX flags, see psdk/winuser.h for the rest */
+#define DCX_EXCLUDEUPDATE	0x00000100
 #define DCX_DCEEMPTY		0x00000800
 #define DCX_DCEBUSY		0x00001000
 #define DCX_DCEDIRTY		0x00002000
-#define DCX_USESTYLE            0x00010000
+#define DCX_USESTYLE		0x00010000
 #define DCX_KEEPCLIPRGN		0x00040000
-#define DCX_NOCLIPCHILDREN      0x00080000
-
-#define  DCEOBJ_AllocDCE()  \
-  ((HDCE) GDIOBJ_AllocObj (GdiHandleTable, GDI_OBJECT_TYPE_DCE))
-#define  DCEOBJ_FreeDCE(hDCE)  GDIOBJ_FreeObj(GdiHandleTable, (HGDIOBJ)hDCE,
GDI_OBJECT_TYPE_DCE)
-#define  DCEOBJ_LockDCE(hDCE) ((PDCE)GDIOBJ_LockObj(GdiHandleTable, (HGDIOBJ)hDCE,
GDI_OBJECT_TYPE_DCE))
-#define  DCEOBJ_UnlockDCE(pDCE) GDIOBJ_UnlockObjByPtr(GdiHandleTable, pDCE)
-BOOL INTERNAL_CALL DCE_Cleanup(PVOID ObjectBody);
-
+#define DCX_NOCLIPCHILDREN	0x00080000
+#define DCX_NORECOMPUTE		0x00100000
+  
+BOOL FASTCALL DCE_Cleanup(PDCE pDce);
 PDCE FASTCALL DceAllocDCE(PWINDOW_OBJECT Window, DCE_TYPE Type);
 PDCE FASTCALL DCE_FreeDCE(PDCE dce);
 VOID FASTCALL DCE_FreeWindowDCE(HWND);

Modified: trunk/reactos/subsystems/win32/win32k/include/tags.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/in…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/include/tags.h (original)
+++ trunk/reactos/subsystems/win32/win32k/include/tags.h Wed Jul 25 07:35:59 2007
@@ -24,7 +24,8 @@
 #define TAG_TIMERBMP	TAG('T', 'I', 'M', 'B') /* timers
bitmap */
 #define TAG_CALLBACK	TAG('C', 'B', 'C', 'K') /* callback
memory */
 #define TAG_WINSTA	TAG('W', 'S', 'T', 'A') /* window
station */
-
+#define TAG_PDCE      TAG('U', 's', 'd', 'c') /* dce */
+ 
 /* objects */
 #define TAG_BEZIER	TAG('B', 'E', 'Z', 'R') /* bezier */
 #define TAG_BITMAP	TAG('B', 'T', 'M', 'P') /* bitmap */

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 (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/windc.c Wed Jul 25 07:35:59 2007
@@ -39,12 +39,23 @@
 /* NOTE - I think we should store this per window station (including gdi objects) */
 
 static PDCE FirstDce = NULL;
-static HDC defaultDCstate;
+static HDC defaultDCstate = NULL;
+//static INT DCECount = 0;
 
 #define DCX_CACHECOMPAREMASK (DCX_CLIPSIBLINGS | DCX_CLIPCHILDREN | \
                               DCX_CACHE | DCX_WINDOW | DCX_PARENTCLIP)
 
 /* FUNCTIONS *****************************************************************/
+
+HDC FASTCALL
+DceCreateDisplayDC(VOID)
+{
+    HDC hDC;
+    UNICODE_STRING DriverName;
+    RtlInitUnicodeString(&DriverName, L"DISPLAY");
+    hDC = IntGdiCreateDC(&DriverName, NULL, NULL, NULL, FALSE);
+    return hDC;
+}
 
 VOID FASTCALL
 DceInit(VOID)
@@ -103,56 +114,65 @@
 PDCE FASTCALL
 DceAllocDCE(PWINDOW_OBJECT Window OPTIONAL, DCE_TYPE Type)
 {
-   HDCE DceHandle;
-   DCE* Dce;
-   UNICODE_STRING DriverName;
-
-   DceHandle = DCEOBJ_AllocDCE();
-   if(!DceHandle)
-      return NULL;
-
-   RtlInitUnicodeString(&DriverName, L"DISPLAY");
-
-   Dce = DCEOBJ_LockDCE(DceHandle);
-   /* No real locking, just get the pointer */
-   DCEOBJ_UnlockDCE(Dce);
-   Dce->Self = DceHandle;
-   Dce->hDC = IntGdiCreateDC(&DriverName, NULL, NULL, NULL, FALSE);
-   if (NULL == defaultDCstate)
-   {
-      defaultDCstate = NtGdiGetDCState(Dce->hDC);
-      DC_SetOwnership(defaultDCstate, NULL);
-   }
-   GDIOBJ_SetOwnership(GdiHandleTable, Dce->Self, NULL);
-   DC_SetOwnership(Dce->hDC, NULL);
-   Dce->hwndCurrent = (Window ? Window->hSelf : NULL);
-   Dce->hClipRgn = NULL;
-
-   Dce->next = FirstDce;
-   FirstDce = Dce;
-
-   if (Type != DCE_CACHE_DC)
-   {
-      Dce->DCXFlags = DCX_DCEBUSY;
-      
-      if (Window)
-      {
-         if (Window->Style & WS_CLIPCHILDREN)
-         {
-            Dce->DCXFlags |= DCX_CLIPCHILDREN;
-         }
-         if (Window->Style & WS_CLIPSIBLINGS)
-         {
-            Dce->DCXFlags |= DCX_CLIPSIBLINGS;
-         }
-      }
-   }
-   else
-   {
-      Dce->DCXFlags = DCX_CACHE | DCX_DCEEMPTY;
-   }
-
-   return(Dce);
+    PDCE pDce;
+  
+    pDce = ExAllocatePoolWithTag(PagedPool, sizeof(DCE), TAG_PDCE);
+    if(!pDce)
+        return NULL;
+       
+    pDce->hDC = DceCreateDisplayDC();
+    if(!pDce->hDC)
+    {
+      ExFreePoolWithTag(pDce, TAG_PDCE);
+      return NULL;     
+    }
+  
+    if (NULL == defaultDCstate) // Ultra HAX! Dedicated to GvG!
+      { // This is a cheesy way to do this. 
+        // But, due to the right way of creating gdi handles there is no choice.
+      defaultDCstate = NtGdiGetDCState(pDce->hDC);
+      DC_SetOwnership( defaultDCstate, NULL);
+    }
+    
+    pDce->hwndCurrent = (Window ? Window->hSelf : NULL);
+    pDce->hClipRgn = NULL;
+    pDce->pProcess = NULL;
+    
+    pDce->next = FirstDce;
+    FirstDce = pDce;
+  
+    if (Type == DCE_WINDOW_DC) //Window DCE have ownership.
+     {
+       DC_SetOwnership(pDce->hDC, PsGetCurrentProcess());
+       pDce->pProcess = PsGetCurrentProcess();
+     }
+    else
+    {
+       DC_SetOwnership(pDce->hDC, NULL); // This hDC is inaccessible!
+    }
+  
+     if (Type != DCE_CACHE_DC)
+     {
+       pDce->DCXFlags = DCX_DCEBUSY;
+        
+        if (Window)
+        {
+           if (Window->Style & WS_CLIPCHILDREN)
+           {
+             pDce->DCXFlags |= DCX_CLIPCHILDREN;
+           }
+           if (Window->Style & WS_CLIPSIBLINGS)
+           {
+             pDce->DCXFlags |= DCX_CLIPSIBLINGS;
+           }
+        }
+     }
+     else
+     {
+       pDce->DCXFlags = DCX_CACHE | DCX_DCEEMPTY;
+     }
+  
+    return(pDce);
 }
 
 VOID static STDCALL
@@ -225,7 +245,15 @@
    {
       /* make the DC clean so that SetDCState doesn't try to update the vis rgn */
       NtGdiSetHookFlags(dce->hDC, DCHF_VALIDATEVISRGN);
+
+      if( dce->pProcess ) // Attempt to fix Dc_Attr problem.
+        DC_SetOwnership( defaultDCstate, dce->pProcess);
+      else
+        DC_SetOwnership( defaultDCstate, PsGetCurrentProcess());
+
       NtGdiSetDCState(dce->hDC, defaultDCstate);
+      DC_SetOwnership( defaultDCstate, NULL); // Return default dc state to inaccessible
mode.
+
       dce->DCXFlags &= ~DCX_DCEBUSY;
       if (dce->DCXFlags & DCX_DCEDIRTY)
       {
@@ -237,7 +265,6 @@
          dce->DCXFlags |= DCX_DCEEMPTY;
       }
    }
-
    return 1;
 }
 
@@ -535,12 +562,10 @@
 }
 
 
-
-BOOL INTERNAL_CALL
-DCE_Cleanup(PVOID ObjectBody)
+BOOL FASTCALL
+DCE_Cleanup(PDCE pDce)
 {
    PDCE PrevInList;
-   PDCE pDce = (PDCE)ObjectBody;
 
    if (pDce == FirstDce)
    {
@@ -604,7 +629,8 @@
 }
 
 
-
+// Win 3.1 throw back, hWnd should be ignored and not used.
+// Replace with NtUserCallOneParam ((DWORD) hDC, ONEPARAM_ROUTINE_RELEASEDC);
 INT STDCALL
 NtUserReleaseDC(HWND hWnd, HDC hDc)
 {
@@ -625,39 +651,37 @@
  *           DceFreeDCE
  */
 PDCE FASTCALL
-DceFreeDCE(PDCE dce, BOOLEAN Force)
-{
-   DCE *ret;
-
-   if (NULL == dce)
-   {
-      return NULL;
-   }
-
-   ret = dce->next;
-
-#if 0 /* FIXME */
-
-   SetDCHook(dce->hDC, NULL, 0L);
-#endif
-
-   if(Force && !GDIOBJ_OwnedByCurrentProcess(GdiHandleTable, dce->hDC))
-   {
-      GDIOBJ_SetOwnership(GdiHandleTable, dce->Self, PsGetCurrentProcess());
-      DC_SetOwnership(dce->hDC, PsGetCurrentProcess());
-   }
-
-   NtGdiDeleteObjectApp(dce->hDC);
-   if (dce->hClipRgn && ! (dce->DCXFlags & DCX_KEEPCLIPRGN))
-   {
-      NtGdiDeleteObject(dce->hClipRgn);
-   }
-
-   DCEOBJ_FreeDCE(dce->Self);
-
-   return ret;
-}
-
+DceFreeDCE(PDCE pdce, BOOLEAN Force)
+  {
+     DCE *ret;
+  
+   if (NULL == pdce)
+     {
+        return NULL;
+     }
+  
+   ret = pdce->next;
+  
+  #if 0 /* FIXME */
+  
+   SetDCHook(pdce->hDC, NULL, 0L);
+  #endif
+  
+   if(Force && !GDIOBJ_OwnedByCurrentProcess(GdiHandleTable, pdce->hDC))
+     {
+      DC_SetOwnership( pdce->hDC, PsGetCurrentProcess());
+     }
+  
+   NtGdiDeleteObjectApp(pdce->hDC);
+   if (pdce->hClipRgn && ! (pdce->DCXFlags & DCX_KEEPCLIPRGN))
+     {
+      NtGdiDeleteObject(pdce->hClipRgn);
+     }
+  
+   DCE_Cleanup(pdce);
+   ExFreePoolWithTag(pdce, TAG_PDCE);
+     return ret;
+}
 
 /***********************************************************************
  *           DceFreeWindowDCE

Modified: trunk/reactos/subsystems/win32/win32k/objects/gdiobj.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/ob…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/objects/gdiobj.c (original)
+++ trunk/reactos/subsystems/win32/win32k/objects/gdiobj.c Wed Jul 25 07:35:59 2007
@@ -77,7 +77,6 @@
   {GDI_OBJECT_TYPE_BRUSH,       sizeof(GDIBRUSHOBJ),   BRUSH_Cleanup},
   {GDI_OBJECT_TYPE_PEN,         sizeof(GDIBRUSHOBJ),   GDI_CleanupDummy},
   {GDI_OBJECT_TYPE_FONT,        sizeof(TEXTOBJ),       GDI_CleanupDummy},
-  {GDI_OBJECT_TYPE_DCE,         sizeof(DCE),           DCE_Cleanup},
   {GDI_OBJECT_TYPE_DIRECTDRAW,  sizeof(DD_DIRECTDRAW), DD_Cleanup},
   {GDI_OBJECT_TYPE_DD_SURFACE,  sizeof(DD_SURFACE),    DDSURF_Cleanup},
   {GDI_OBJECT_TYPE_EXTPEN,      sizeof(GDIBRUSHOBJ),   EXTPEN_Cleanup},