[greatlrd] 31510: Add new struct call EDD_SURFACE_LOCAL it is base on DD_SURFACE_LOCAL Change DxLocksurface using this new struct

Author: greatlrd
Date: Mon Dec 31 05:54:23 2007
New Revision: 31510

URL: http://svn.reactos.org/svn/reactos?rev=31510&view=rev
Log:
Add new struct call EDD_SURFACE_LOCAL it is base on DD_SURFACE_LOCAL
Change DxLocksurface using this new struct 

Modified:
    trunk/reactos/drivers/directx/dxg/dxg_int.h
    trunk/reactos/drivers/directx/dxg/eng.c

Modified: trunk/reactos/drivers/directx/dxg/dxg_int.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/directx/dxg/dxg_in…
==============================================================================
--- trunk/reactos/drivers/directx/dxg/dxg_int.h (original)
+++ trunk/reactos/drivers/directx/dxg/dxg_int.h Mon Dec 31 05:54:23 2007
@@ -62,6 +62,12 @@
     PVOID pUser;
 } DD_ENTRY, *PDD_ENTRY;
 
+typedef struct _EDD_SURFACE_LOCAL
+{
+     DD_BASEOBJECT Object;
+     DD_SURFACE_LOCAL Surfacelcl;
+} EDD_SURFACE_LOCAL, *PEDD_SURFACE_LOCAL;
+
 
 
 

Modified: trunk/reactos/drivers/directx/dxg/eng.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/directx/dxg/eng.c?…
==============================================================================
--- trunk/reactos/drivers/directx/dxg/eng.c (original)
+++ trunk/reactos/drivers/directx/dxg/eng.c Mon Dec 31 05:54:23 2007
@@ -16,12 +16,13 @@
 STDCALL
 DxDdLockDirectDrawSurface(HANDLE hDdSurface)
 {
+   PEDD_SURFACE_LOCAL pEDDSurfacelcl = NULL;
    PDD_SURFACE_LOCAL pSurfacelcl = NULL;
 
    pSurfacelcl = DdHmgLock(hDdSurface, 2, FALSE);
    if (pSurfacelcl != NULL)
    {
-        pSurfacelcl = (PDD_SURFACE_LOCAL)(((PBYTE)&pSurfacelcl) +
sizeof(DD_BASEOBJECT));
+        pSurfacelcl = &pEDDSurfacelcl->Surfacelcl;
    }
 
    return pSurfacelcl;
@@ -32,12 +33,12 @@
 DxDdUnlockDirectDrawSurface(PDD_SURFACE_LOCAL pSurface)
 {
     BOOL retVal = FALSE;
-    PDD_BASEOBJECT pObject = NULL;
+    PEDD_SURFACE_LOCAL pEDDSurfacelcl  = NULL;
 
     if (pSurface)
     {
-        pObject = (PDD_BASEOBJECT)( ((PBYTE)&pSurface) - sizeof(DD_BASEOBJECT));
-        InterlockedDecrement(&pObject->cExclusiveLock);
+        pEDDSurfacelcl = (PEDD_SURFACE_LOCAL)( ((PBYTE)pSurface) -
sizeof(DD_BASEOBJECT));
+        InterlockedDecrement(&pEDDSurfacelcl->Object.cExclusiveLock);
         retVal = TRUE;
     }
 
@@ -45,3 +46,5 @@
 }
 
 
+
+