vbo: Implement method to track the inputs array.

Provided the _DrawVAO and the derived state that is maintained if we have
the _DrawVAO set, implement a method to incrementally update the array of
gl_vertex_array input pointers.

v2: Add some more comments.
    Rename _vbo_array_init to _vbo_init_inputs.
    Rename vbo_context::arrays to vbo_context::draw_arrays.

Signed-off-by: Mathias Fröhlich <[email protected]>
Reviewed-by: Brian Paul <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/mesa/vbo/vbo_private.h b/src/mesa/vbo/vbo_private.h
index 49922892e5e..2fda06dec68 100644
--- a/src/mesa/vbo/vbo_private.h
+++ b/src/mesa/vbo/vbo_private.h
@@ -44,6 +44,8 @@ struct _mesa_prim;
 
 struct vbo_context {
    struct gl_vertex_array currval[VBO_ATTRIB_MAX];
+   /* The array of inputs used for _DrawVAO draws. */
+   struct vbo_inputs draw_arrays;
 
    struct vbo_exec_context exec;
    struct vbo_save_context save;