[greatlrd] 50002: intEnableReactXDriver Primary surface have been rewriten in win32k ppdev does not alloc edd_directx_global struct any more, that is not a problem we doing it here instead. it allo...

Author: greatlrd
Date: Fri Dec 10 11:08:37 2010
New Revision: 50002

URL: http://svn.reactos.org/svn/reactos?rev=50002&view=rev
Log:
intEnableReactXDriver
Primary surface have been rewriten in win32k
ppdev does not alloc edd_directx_global struct
any more, that is not a problem we doing it here
instead. it alloc it when it is need it. not before

Modified:
    branches/reactx/reactos/subsystems/win32/win32k/ntddraw/ddraw.c

Modified: branches/reactx/reactos/subsystems/win32/win32k/ntddraw/ddraw.c
URL:
http://svn.reactos.org/svn/reactos/branches/reactx/reactos/subsystems/win32…
==============================================================================
--- branches/reactx/reactos/subsystems/win32/win32k/ntddraw/ddraw.c [iso-8859-1]
(original)
+++ branches/reactx/reactos/subsystems/win32/win32k/ntddraw/ddraw.c [iso-8859-1] Fri Dec
10 11:08:37 2010
@@ -39,8 +39,6 @@
     PGD_DXDDENABLEDIRECTDRAW pfnDdEnableDirectDraw = NULL;
     BOOL success = FALSE;
 
-    /* FIXME get the process data */
-
     /* Do not try load dxg.sys when it have already been load once */
     if (gpfnStartupDxGraphics == NULL)
     {
@@ -60,6 +58,20 @@
     }
 
     pDev = pDC->ppdev;
+
+    /* This code should be where primary surface is create
+       but we save some memory use to alloc it when it is need it */
+    if (pDev->pEDDgpl == NULL)
+    {
+        pDev->pEDDgpl = ExAllocatePoolWithTag(PagedPool,
sizeof(EDD_DIRECTDRAW_GLOBAL), TAG_EDDGBL);
+        if (!pDev->pEDDgpl)
+        {
+            DPRINT1("Warning : Failed to allocate memmory for
EDD_DIRECTDRAW_GLOBAL\n");
+            DC_UnlockDc(pDC);
+            return FALSE;
+        }
+        RtlZeroMemory( pDev->pEDDgpl ,sizeof(EDD_DIRECTDRAW_GLOBAL));
+    }
 
     /* test see if drv got a dx interface or not */
     if  ( ( pDev->DriverFunctions.DisableDirectDraw == NULL) ||
@@ -69,8 +81,7 @@
     }
     else
     {
-
-        /* CHeck see if dx have been enable or not */
+        /* Check see if dx have been enable or not */
         if ( pDev->pEDDgpl->pvmList == NULL)
         {
             pDev->pEDDgpl->ddCallbacks.dwSize = sizeof(DD_CALLBACKS);
@@ -98,7 +109,6 @@
             success = TRUE;
         }
     }
-
 
     DPRINT1("Return value : 0x%08x\n",success);
     DC_UnlockDc(pDC);