st/nine: Fix behaviour of D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING

Ignore D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING when
D3DUSAGE_RENDERTARGET is not specified.

This behaviour matches windows drivers.

Reviewed-by: Axel Davy <axel.davy@ens.fr>
Signed-off-by: Xavier Bouchoux <xavierb@gmail.com>

diff --git a/src/gallium/state_trackers/nine/adapter9.c b/src/gallium/state_trackers/nine/adapter9.c
index 1d75155..9d6d659 100644 (file)
--- a/src/gallium/state_trackers/nine/adapter9.c
+++ b/src/gallium/state_trackers/nine/adapter9.c
@@ -311,7 +311,8 @@ NineAdapter9_CheckDeviceFormat( struct NineAdapter9 *This,
     if (CheckFormat == D3DFMT_ATOC && RType == D3DRTYPE_SURFACE)
         return D3D_OK;
 
-    if (Usage & D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING)
+    if ((Usage & D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING) &&
+        (Usage & D3DUSAGE_RENDERTARGET))
         bind |= PIPE_BIND_BLENDABLE;
 
     if (Usage & D3DUSAGE_DMAP) {