[jimtabor] 40212: - Write new simplified NtGdiDeleteObjectApp based on test case. - Include internal function GetObjectOwner to support retrieval of owner process ID. - Update GDI_TABLE_ENTRY.

Author: jimtabor
Date: Wed Mar 25 04:07:02 2009
New Revision: 40212

URL: http://svn.reactos.org/svn/reactos?rev=40212&view=rev
Log:
- Write new simplified NtGdiDeleteObjectApp based on test case.
- Include internal function GetObjectOwner to support retrieval of owner process ID.
- Update GDI_TABLE_ENTRY.

Modified:
    trunk/reactos/include/reactos/win32k/ntgdihdl.h
    trunk/reactos/subsystems/win32/win32k/include/gdiobj.h
    trunk/reactos/subsystems/win32/win32k/objects/dclife.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/ntgd...
==============================================================================
--- trunk/reactos/include/reactos/win32k/ntgdihdl.h [iso-8859-1] (original)
+++ trunk/reactos/include/reactos/win32k/ntgdihdl.h [iso-8859-1] Wed Mar 25 04:07:02 2009
@@ -219,9 +219,9 @@
     union{            /* temp union structure. */
     LONG  Type;       /* the first 16 bit is the object type including the stock obj flag, the last 16 bits is just the object type */
     struct{
-    SHORT FullUnique; /* unique */
-    CHAR  ObjectType; /* objt */
-    CHAR  Flags;      /* Flags */
+    USHORT FullUnique; /* unique */
+    UCHAR  ObjectType; /* objt */
+    UCHAR  Flags;      /* Flags */
     };};
     PVOID UserData;   /* pUser Points to the user mode structure, usually NULL though */
 } GDI_TABLE_ENTRY, *PGDI_TABLE_ENTRY;

Modified: trunk/reactos/subsystems/win32/win32k/include/gdiobj.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/inc...
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/include/gdiobj.h [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/include/gdiobj.h [iso-8859-1] Wed Mar 25 04:07:02 2009
@@ -121,4 +121,6 @@
 }
 #endif

+INT FASTCALL GreGetObjectOwner(HGDIOBJ, GDIOBJTYPE);
+
 #endif

Modified: trunk/reactos/subsystems/win32/win32k/objects/dclife.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/obj...
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/objects/dclife.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/objects/dclife.c [iso-8859-1] Wed Mar 25 04:07:02 2009
@@ -665,3 +665,34 @@
     return IntGdiDeleteDC(DCHandle, FALSE);
 }

+BOOL
+APIENTRY
+NewNtGdiDeleteObjectApp(HANDLE DCHandle)
+{
+  GDIOBJTYPE ObjType;
+
+  if (GDI_HANDLE_IS_STOCKOBJ(DCHandle)) return TRUE;
+
+  ObjType = GDI_HANDLE_GET_TYPE(DCHandle) >> GDI_ENTRY_UPPER_SHIFT;
+
+  if (GreGetObjectOwner( DCHandle, ObjType))
+  {
+     switch(ObjType)
+     {
+        case GDIObjType_DC_TYPE:
+          return IntGdiDeleteDC(DCHandle, FALSE);
+
+        case GDIObjType_RGN_TYPE:
+        case GDIObjType_SURF_TYPE:
+        case GDIObjType_PAL_TYPE:
+        case GDIObjType_LFONT_TYPE:
+        case GDIObjType_BRUSH_TYPE:
+          return NtGdiDeleteObject((HGDIOBJ) DCHandle);
+
+        default:
+          return FALSE; 
+     }
+  }
+  return (DCHandle != NULL);
+}
+

Modified: trunk/reactos/subsystems/win32/win32k/objects/gdiobj.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/obj...
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/objects/gdiobj.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/objects/gdiobj.c [iso-8859-1] Wed Mar 25 04:07:02 2009
@@ -1608,6 +1608,26 @@
   return TRUE;
 }

+INT
+FASTCALL
+GreGetObjectOwner(HGDIOBJ Handle, GDIOBJTYPE ObjType)
+{
+  INT Ret = GDI_OBJ_HMGR_RESTRICTED;
+
+  if ( GDI_HANDLE_GET_INDEX(Handle) < GDI_HANDLE_COUNT )
+  {
+     PGDI_TABLE_ENTRY pEntry = &GdiHandleTable->Entries[GDI_HANDLE_GET_INDEX(Handle)];
+
+     if (pEntry->ObjectType == ObjType)
+     {
+        if (pEntry->FullUnique == (GDI_HANDLE_GET_UPPER(Handle) >> GDI_ENTRY_UPPER_SHIFT))
+           Ret = pEntry->ProcessId & ~1;
+     }
+  }
+  return Ret;
+}
+
+
 W32KAPI
 HANDLE
 APIENTRY