vbo: set draw_id

Fixes conditional jump depending on uninitialized value
in si_state_draw.c:593

Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Miklós Máté <mtmkls@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
(cherry picked from commit b9ac72b5116d25529fc19bd849e85d5d91413f66)

diff --git a/src/mesa/vbo/vbo_exec_array.c b/src/mesa/vbo/vbo_exec_array.c
index 87ed7f7..96ed84f 100644 (file)
--- a/src/mesa/vbo/vbo_exec_array.c
+++ b/src/mesa/vbo/vbo_exec_array.c
@@ -814,6 +814,7 @@ vbo_validated_drawrangeelements(struct gl_context *ctx, GLenum mode,
    prim[0].basevertex = basevertex;
    prim[0].num_instances = numInstances;
    prim[0].base_instance = baseInstance;
+   prim[0].draw_id = 0;
 
    /* Need to give special consideration to rendering a range of
     * indices starting somewhere above zero.  Typically the