[jimtabor] 33288: Implement IntGdiReferencePdev and part of IntGdiUnreferencePdev.

Author: jimtabor
Date: Sun May  4 20:34:17 2008
New Revision: 33288

URL: http://svn.reactos.org/svn/reactos?rev=33288&view=rev
Log:
Implement IntGdiReferencePdev and part of IntGdiUnreferencePdev.

Modified:
    trunk/reactos/subsystems/win32/win32k/objects/dc.c

Modified: trunk/reactos/subsystems/win32/win32k/objects/dc.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/obj...
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/objects/dc.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/objects/dc.c [iso-8859-1] Sun May  4 20:34:17 2008
@@ -2699,16 +2699,27 @@
    return &PrimarySurface;
 }

+HSEMAPHORE hsemDriverMgmt = NULL; // Hax, should be in dllmain.c and global.
+
 VOID FASTCALL
 IntGdiReferencePdev(PGDIDEVICE pPDev)
 {
+  if(!hsemDriverMgmt) hsemDriverMgmt = EngCreateSemaphore(); // Hax, should be in dllmain.c
+  EngAcquireSemaphore(hsemDriverMgmt);
   pPDev->cPdevRefs++;
+  EngReleaseSemaphore(hsemDriverMgmt);
 }

VOID FASTCALL
 IntGdiUnreferencePdev(PGDIDEVICE pPDev, DWORD CleanUpType) 
 {
+  EngAcquireSemaphore(hsemDriverMgmt);
   pPDev->cPdevRefs--;
+  if (!pPDev->cPdevRefs)
+  {
+     // Handle the destruction of pPDev or GDIDEVICE or PDEVOBJ or PDEV etc.
+  }
+  EngReleaseSemaphore(hsemDriverMgmt);
 }