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llvmpipe: Do not use barriers if not using threads.

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Cc: mesa-stable@lists.freedesktop.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94088
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
This commit is contained in:
Vinson Lee
2016-02-10 16:42:19 -08:00
parent 9e30d66b7c
commit 4ed4c1d921
1 changed files with 6 additions and 2 deletions
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src/gallium/drivers/llvmpipe/lp_rast.c
+6 -2
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@@ -910,7 +910,9 @@ lp_rast_create( unsigned num_threads )
create_rast_threads(rast);
/* for synchronizing rasterization threads */
pipe_barrier_init( &rast->barrier, rast->num_threads );
if (rast->num_threads > 0) {
pipe_barrier_init( &rast->barrier, rast->num_threads );
}
memset(lp_dummy_tile, 0, sizeof lp_dummy_tile);
@@ -967,7 +969,9 @@ void lp_rast_destroy( struct lp_rasterizer *rast )
}
/* for synchronizing rasterization threads */
pipe_barrier_destroy( &rast->barrier );
if (rast->num_threads > 0) {
pipe_barrier_destroy( &rast->barrier );
}
lp_scene_queue_destroy(rast->full_scenes);