st/nine: Catch redundant SetStreamSourceFreq calls

Some apps do redundant SetStreamSourceFreq calls.
Catch them to improve performance.

Signed-off-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

diff --git a/src/gallium/state_trackers/nine/device9.c b/src/gallium/state_trackers/nine/device9.c
index 32acc99..760b8e8 100644 (file)
--- a/src/gallium/state_trackers/nine/device9.c
+++ b/src/gallium/state_trackers/nine/device9.c
@@ -3555,6 +3555,9 @@ NineDevice9_SetStreamSourceFreq( struct NineDevice9 *This,
                   (Setting & D3DSTREAMSOURCE_INDEXEDDATA)), D3DERR_INVALIDCALL);
     user_assert(Setting, D3DERR_INVALIDCALL);
 
+    if (likely(!This->is_recording) && state->stream_freq[StreamNumber] == Setting)
+        return D3D_OK;
+
     state->stream_freq[StreamNumber] = Setting;
 
     if (Setting & D3DSTREAMSOURCE_INSTANCEDATA)