[tkreuzer] 50959: [WIN32K] Revert part of r50941. First its architecturally unclean to lock a DC in a USER function, 2nd its a bug to keep the lock while sending a message.

Author: tkreuzer
Date: Wed Mar  2 22:33:14 2011
New Revision: 50959

URL: http://svn.reactos.org/svn/reactos?rev=50959&view=rev
Log:
[WIN32K]
Revert part of r50941. First its architecturally unclean to lock a DC in a USER function,
2nd its a bug to keep the lock while sending a message.

Modified:
    trunk/reactos/subsystems/win32/win32k/include/color.h
    trunk/reactos/subsystems/win32/win32k/ntuser/painting.c
    trunk/reactos/subsystems/win32/win32k/objects/palette.c

Modified: trunk/reactos/subsystems/win32/win32k/include/color.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/in…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/include/color.h [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/include/color.h [iso-8859-1] Wed Mar  2 22:33:14
2011
@@ -36,6 +36,6 @@
 COLORREF APIENTRY COLOR_LookupNearestColor (PALETTEENTRY* palPalEntry, INT size, COLORREF
color);
 INT APIENTRY COLOR_PaletteLookupExactIndex (PALETTEENTRY* palPalEntry, INT size, COLORREF
col);
 INT APIENTRY COLOR_PaletteLookupPixel(PALETTEENTRY *palPalEntry, INT size, XLATEOBJ
*XlateObj, COLORREF col, BOOL skipReserved);
-UINT FASTCALL IntGdiRealizePalette (PDC);
+UINT FASTCALL IntGdiRealizePalette (HDC);
 HCOLORSPACE FASTCALL IntGdiCreateColorSpace(PLOGCOLORSPACEEXW);
 BOOL FASTCALL IntGdiDeleteColorSpace(HCOLORSPACE);

Modified: trunk/reactos/subsystems/win32/win32k/ntuser/painting.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/painting.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/painting.c [iso-8859-1] Wed Mar  2
22:33:14 2011
@@ -1951,11 +1951,7 @@
   HWND hWnd;
   DWORD Ret;
 
-  PDC pdc = DC_LockDc(hdc);
-  if(!pdc)
-    return 0;
-
-  Ret = IntGdiRealizePalette(pdc);
+  Ret = IntGdiRealizePalette(hdc);
   if (Ret) // There was a change.
   {
       hWnd = IntWindowFromDC(hdc);
@@ -1964,7 +1960,6 @@
          UserSendNotifyMessage((HWND)HWND_BROADCAST, WM_PALETTECHANGED, (WPARAM)hWnd,
0);
       }
   }
-  DC_UnlockDc(pdc);
   return Ret;
 }
 

Modified: trunk/reactos/subsystems/win32/win32k/objects/palette.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/ob…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/objects/palette.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/objects/palette.c [iso-8859-1] Wed Mar  2
22:33:14 2011
@@ -723,10 +723,18 @@
 
 UINT
 FASTCALL
-IntGdiRealizePalette(PDC pdc)
+IntGdiRealizePalette(HDC hDC)
 {
     UINT i, realize = 0;
+    PDC pdc;
     PALETTE *ppalSurf, *ppalDC;
+
+    pdc = DC_LockDc(hDC);
+    if(!pdc)
+    {
+        EngSetLastError(ERROR_INVALID_HANDLE);
+        return 0;
+    }
 
     ppalSurf = pdc->dclevel.pSurface->ppal;
     ppalDC = pdc->dclevel.ppal;
@@ -734,7 +742,7 @@
     if(!(ppalSurf->flFlags & PAL_INDEXED))
     {
         // FIXME : set error?
-        return 0;
+        goto cleanup;
     }
 
     ASSERT(ppalDC->flFlags & PAL_INDEXED);
@@ -747,6 +755,8 @@
         InterlockedExchange((LONG*)&ppalSurf->IndexedColors[i],
*(LONG*)&ppalDC->IndexedColors[i]);
     }
 
+cleanup:
+    DC_UnlockDc(pdc);
     return realize;
 }
 
@@ -800,9 +810,11 @@
         {
             if (dc->dclevel.hpal == hPal)
             {
-                IntGdiRealizePalette(dc);
+                DC_UnlockDc(dc);
+                IntGdiRealizePalette(hDC);
             }
-            DC_UnlockDc(dc);
+            else
+                DC_UnlockDc(dc);
         }
         UserReleaseDC(Wnd,hDC, FALSE);
     }