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-rw-r--r--src/gallium/auxiliary/draw/draw_pipe_vbuf.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pipe_vbuf.c b/src/gallium/auxiliary/draw/draw_pipe_vbuf.c
index 5ead25efff0..9153bc2f865 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_vbuf.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_vbuf.c
@@ -394,13 +394,14 @@ vbuf_alloc_vertices( struct vbuf_stage *vbuf )
/* even number */
vbuf->max_vertices = vbuf->max_vertices & ~1;
+ if(vbuf->max_vertices >= UNDEFINED_VERTEX_ID)
+ vbuf->max_vertices = UNDEFINED_VERTEX_ID - 1;
+
/* Must always succeed -- driver gives us a
* 'max_vertex_buffer_bytes' which it guarantees it can allocate,
* and it will flush itself if necessary to do so. If this does
* fail, we are basically without usable hardware.
*/
- assert(vbuf->max_vertices < UNDEFINED_VERTEX_ID);
-
vbuf->vertices = (uint *) vbuf->render->allocate_vertices(vbuf->render,
(ushort) vbuf->vertex_size,
(ushort) vbuf->max_vertices);