From: Keith Whitwell <keith@tungstengraphics.com>
Date: Mon, 20 Nov 2006 11:49:58 +0000 (+0000)
Subject: Don't perform dangling attribute check on POS attribute.  It can't by
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=dd60eaa6d9f61735141976db0e83d25176ac73c7;p=mesa.git

Don't perform dangling attribute check on POS attribute.  It can't by
definition dangle (every vertex has a position).  However
save->currentsz isn't properly maintained for this attribute, as there
is no current position value to track.  Based on patch from Haihao Xiang.
---

diff --git a/src/mesa/vbo/vbo_save_api.c b/src/mesa/vbo/vbo_save_api.c
index 8ceba2b832b..efe018b09e2 100644
--- a/src/mesa/vbo/vbo_save_api.c
+++ b/src/mesa/vbo/vbo_save_api.c
@@ -527,7 +527,7 @@ static void _save_upgrade_vertex( GLcontext *ctx,
 
       /* Need to note this and fix up at runtime (or loopback):
        */
-      if (save->currentsz[attr][0] == 0) {
+      if (attr != VBO_ATTRIB_POS && save->currentsz[attr][0] == 0) {
 	 assert(oldsz == 0);
 	 save->dangling_attr_ref = GL_TRUE;
       }