st/nine: Do not wait for DEFAULT lock for volumes when we can

If the volumes (and the texture container) are not referenced,
then they are no pending operations on them. We can lock directly.

Signed-off-by: Axel Davy <axel.davy@ens.fr>

diff --git a/src/gallium/state_trackers/nine/volume9.c b/src/gallium/state_trackers/nine/volume9.c
index 29a1fcbbd03a7155942c2490948668a7c20df451..11236a02e7554337e9ad9e5690416bdbb363c115 100644 (file)
--- a/src/gallium/state_trackers/nine/volume9.c
+++ b/src/gallium/state_trackers/nine/volume9.c
@@ -320,10 +320,17 @@ NineVolume9_LockBox( struct NineVolume9 *This,
         pLockedVolume->pBits =
             NineVolume9_GetSystemMemPointer(This, box.x, box.y, box.z);
     } else {
-        pipe = NineDevice9_GetPipe(This->base.device);
+        bool no_refs = !p_atomic_read(&This->base.bind) &&
+            !p_atomic_read(&This->base.container->bind);
+        if (no_refs)
+            pipe = nine_context_get_pipe_acquire(This->base.device);
+        else
+            pipe = NineDevice9_GetPipe(This->base.device);
         pLockedVolume->pBits =
             pipe->transfer_map(pipe, resource, This->level, usage,
                                &box, &This->transfer);
+        if (no_refs)
+            nine_context_get_pipe_release(This->base.device);
         if (!This->transfer) {
             if (Flags & D3DLOCK_DONOTWAIT)
                 return D3DERR_WASSTILLDRAWING;