[PATCH again] wined3d: Don't accept WINED3DFMT_NULL

[Max Qian]

This fixes https://bugs.winehq.org/show_bug.cgi?id=40624

Signed-off-by: Max Qian <contrib at maxqia.com>
---
  dlls/wined3d/context.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/wined3d/context.c b/dlls/wined3d/context.c
index e741969..6be1c86 100644
--- a/dlls/wined3d/context.c
+++ b/dlls/wined3d/context.c
@@ -378,7 +378,7 @@ static inline void 
context_set_fbo_key_for_surface(const struct wined3d_context
          struct wined3d_fbo_entry_key *key, UINT idx, struct 
wined3d_surface *surface,
          DWORD location)
  {
-    if (!surface)
+    if (!surface || surface->container->resource.format->id == 
WINED3DFMT_NULL)
      {
          key->objects[idx].object = 0;
          key->objects[idx].target = 0;
-- 
2.8.2