Alexandre Julliard : winex11: Hold a reference to the surface in UpdateLayeredWindow.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 2500e21a90a085f34ad7433e362aa05fa37b0692
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=2500e21a90a085f34ad7433e362aa05fa37b0692

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Thu Oct  4 10:34:41 2012 +0200

winex11: Hold a reference to the surface in UpdateLayeredWindow.

---

 dlls/winex11.drv/window.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/dlls/winex11.drv/window.c b/dlls/winex11.drv/window.c
index 052eafa..7c8f391 100644
--- a/dlls/winex11.drv/window.c
+++ b/dlls/winex11.drv/window.c
@@ -2386,11 +2386,15 @@ BOOL CDECL X11DRV_UpdateLayeredWindow( HWND hwnd, const UPDATELAYEREDWINDOWINFO
     }
     else set_surface_color_key( surface, color_key );
 
+    if (surface) window_surface_add_ref( surface );
     release_win_data( data );
 
     if (!surface) return FALSE;
-    if (!info->hdcSrc) return TRUE;
-    if (info->prcDirty && !IntersectRect( &rect, &rect, info->prcDirty )) return TRUE;
+    if (!info->hdcSrc)
+    {
+        window_surface_release( surface );
+        return TRUE;
+    }
 
     dst_bits = surface->funcs->get_info( surface, bmi );
 
@@ -2403,6 +2407,7 @@ BOOL CDECL X11DRV_UpdateLayeredWindow( HWND hwnd, const UPDATELAYEREDWINDOWINFO
 
     if (info->prcDirty)
     {
+        IntersectRect( &rect, &rect, info->prcDirty );
         memcpy( src_bits, dst_bits, bmi->bmiHeader.biSizeImage );
         PatBlt( hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, BLACKNESS );
     }
@@ -2422,6 +2427,7 @@ BOOL CDECL X11DRV_UpdateLayeredWindow( HWND hwnd, const UPDATELAYEREDWINDOWINFO
     surface->funcs->flush( surface );
 
 done:
+    window_surface_release( surface );
     if (hdc) DeleteDC( hdc );
     if (dib) DeleteObject( dib );
     return ret;