+
+ /**
+ * A cached backing host side surface to be used if this texture is being
+ * used for rendering and sampling at the same time.
+ * Currently we only cache one handle. If needed, we can extend this to
+ * support multiple handles.
+ */
+ struct svga_host_surface_cache_key backed_key;
+ struct svga_winsys_surface *backed_handle;
+ unsigned backed_age;