From: José Fonseca <jfonseca@vmware.com>
Date: Wed, 10 Mar 2010 07:23:29 +0000 (+0000)
Subject: llvmpipe: Cope with null Vertex element cso.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=eeaa0861bfc98a06ceec269801271b7453c4fcbd;p=mesa.git

llvmpipe: Cope with null Vertex element cso.

CSO can often be null.

For example:
1. at initialization
2. using an util module (u_blit) right after initialization (it will push
   state and pop the previous null state)
3. at shutdown time (state shouldn't be bound when being destroyed)

Glean was hitting 2.
---

diff --git a/src/gallium/drivers/llvmpipe/lp_state_vertex.c b/src/gallium/drivers/llvmpipe/lp_state_vertex.c
index 2ddd110a5f9..f6427aa908e 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_vertex.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_vertex.c
@@ -61,7 +61,8 @@ llvmpipe_bind_vertex_elements_state(struct pipe_context *pipe,
 
    llvmpipe->dirty |= LP_NEW_VERTEX;
 
-   draw_set_vertex_elements(llvmpipe->draw, lp_velems->count, lp_velems->velem);
+   if (velems)
+      draw_set_vertex_elements(llvmpipe->draw, lp_velems->count, lp_velems->velem);
 }
 
 void