Konrad Rzepecki : wined3d: Prevent crash when blit_priv is NULL.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 37aadc9e377d7840a607dbabff10de375f9fdde8
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=37aadc9e377d7840a607dbabff10de375f9fdde8

Author: Konrad Rzepecki <hannibal at astral.lodz.pl>
Date:   Sun Mar 20 11:58:08 2011 +0100

wined3d: Prevent crash when blit_priv is NULL.

---

 dlls/wined3d/surface.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/wined3d/surface.c b/dlls/wined3d/surface.c
index 104b445..ec959cc 100644
--- a/dlls/wined3d/surface.c
+++ b/dlls/wined3d/surface.c
@@ -3924,8 +3924,8 @@ static HRESULT WINAPI IWineD3DSurfaceImpl_Blt(IWineD3DSurface *iface, const RECT
     }
 
     /* Special cases for RenderTargets */
-    if ((This->resource.usage & WINED3DUSAGE_RENDERTARGET)
-            || (src && (src->resource.usage & WINED3DUSAGE_RENDERTARGET)))
+    if (This->resource.device->blit_priv && ((This->resource.usage & WINED3DUSAGE_RENDERTARGET)
+            || (src && (src->resource.usage & WINED3DUSAGE_RENDERTARGET))))
     {
         if (SUCCEEDED(IWineD3DSurfaceImpl_BltOverride(This, DestRect, src, SrcRect, flags, DDBltFx, Filter)))
             return WINED3D_OK;