From ab6508e3993afa35de1472fe8a847427c1749efe Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Wed, 3 Jun 2009 19:52:32 -0600
Subject: [PATCH] mesa: fix parity error for tri strips with 1st provoking
 vertex

---
 src/mesa/tnl/t_vb_rendertmp.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/tnl/t_vb_rendertmp.h b/src/mesa/tnl/t_vb_rendertmp.h
index 7f7303367b7..29d2fa852c4 100644
--- a/src/mesa/tnl/t_vb_rendertmp.h
+++ b/src/mesa/tnl/t_vb_rendertmp.h
@@ -226,7 +226,7 @@ static void TAG(render_tri_strip)( GLcontext *ctx,
          if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
             RENDER_TRI( ELT(j-2+parity), ELT(j-1-parity), ELT(j) );
          else
-            RENDER_TRI( ELT(j), ELT(j-2+parity), ELT(j-1-parity) );
+            RENDER_TRI( ELT(j-1+parity), ELT(j-parity), ELT(j-2) );
       }
    }
    POSTFIX;
-- 
2.30.2