mesa: Move vbo draw functions into dd_function_table.

Move vbo draw functions into struct dd_function_table.
For now just wrap the underlying vbo functions.

Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>

src/mesa/state_tracker/st_context.c

@@ -752,6 +752,10 @@ st_init_driver_functions(struct pipe_screen *screen,
    if (screen->get_param(screen, PIPE_CAP_STRING_MARKER))
       functions->EmitStringMarker = st_emit_string_marker;
 
+   /* For now call through these into the vbo_set_draw_func... */
+   functions->Draw = _vbo_draw;
+   functions->DrawIndirect = _vbo_draw_indirect;
+
    functions->Enable = st_Enable;
    functions->UpdateState = st_invalidate_state;
    functions->QueryMemoryInfo = st_query_memory_info;