draw: add interface to notify renderer of the current view index

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Acked-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9399>

diff --git a/src/gallium/auxiliary/draw/draw_vbuf.h b/src/gallium/auxiliary/draw/draw_vbuf.h
index 6e737ae..57b247e 100644 (file)
--- a/src/gallium/auxiliary/draw/draw_vbuf.h
+++ b/src/gallium/auxiliary/draw/draw_vbuf.h
@@ -100,6 +100,11 @@ struct vbuf_render {
    void (*set_primitive)( struct vbuf_render *, enum pipe_prim_type prim );
 
    /**
+    * Notify the renderer of the current view index.
+    */
+   void (*set_view_index)( struct vbuf_render *, unsigned view_index );
+
+   /**
     * Draw indexed primitives.  Note that indices are ushort.  The driver
     * must complete this call, if necessary splitting the index list itself.
     */