Mesa (master): tnl: assert that num_instances > 0

[Brian Paul]

Module: Mesa
Branch: master
Commit: 6179f7e38e78eea6fb06180fca3c8b1e78d25f2b
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=6179f7e38e78eea6fb06180fca3c8b1e78d25f2b

Author: Brian Paul <brianp at vmware.com>
Date:   Mon Jan 17 09:40:16 2011 -0700

tnl: assert that num_instances > 0

---

 src/mesa/tnl/t_draw.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/mesa/tnl/t_draw.c b/src/mesa/tnl/t_draw.c
index bdb893e..858b828 100644
--- a/src/mesa/tnl/t_draw.c
+++ b/src/mesa/tnl/t_draw.c
@@ -468,6 +468,8 @@ void _tnl_draw_prims( struct gl_context *ctx,
 	       break;
 	 }
 
+         assert(prim[i].num_instances > 0);
+
 	 /* Binding inputs may imply mapping some vertex buffer objects.
 	  * They will need to be unmapped below.
 	  */