[WINED3D 5] Fix STREAM flag override

[Ivan Gyurdiev]

When SetStreamSource is called it will set the STREAM flag on the new 
buffer, and then unset the STREAM flag on the old buffer. When the old 
and new buffer are the same, this results in the STREAM flag being 
cleared incorrectly.

Stefan Dosinger cc'ed.
-------------- next part --------------
---
 dlls/wined3d/device.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/dlls/wined3d/device.c b/dlls/wined3d/device.c
index 4a5d195..4c8aca3 100644
--- a/dlls/wined3d/device.c
+++ b/dlls/wined3d/device.c
@@ -2417,7 +2417,10 @@ static HRESULT WINAPI IWineD3DDeviceImpl
         return WINED3D_OK;
     }
 
-    /* Not recording... */
+    /* Same stream object: no action */
+    if (oldSrc == pStreamData)
+        return WINED3D_OK;
+
     /* Need to do a getParent and pass the reffs up */
     /* MSDN says ..... When an application no longer holds a references to this interface, the interface will automatically be freed.
     which suggests that we shouldn't be ref counting? and do need a _release on the stream source to reset the stream source
-- 
1.4.0