pb_bufmgr_cache: add is_buffer_busy hook and use it instead of non-blocking map

This is cleaner and implementing the hook is optional.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h b/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h
index 2ef02160f2..960068c494 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h
+++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h
@@ -82,6 +82,10 @@ struct pb_manager
     */
    void
    (*flush)( struct pb_manager *mgr );
+
+   boolean
+   (*is_buffer_busy)( struct pb_manager *mgr,
+                      struct pb_buffer *buf );
 };