tnl: fix first provoking vertex bug for line loops

diff --git a/src/mesa/tnl/t_vb_rendertmp.h b/src/mesa/tnl/t_vb_rendertmp.h
index f0da0cdf0deac90875e99382f0a2ffc248fa56e2..05d130906424c72a40c3b2e23ac7cc80cca66778 100644 (file)
--- a/src/mesa/tnl/t_vb_rendertmp.h
+++ b/src/mesa/tnl/t_vb_rendertmp.h
@@ -148,7 +148,7 @@ static void TAG(render_line_loop)( GLcontext *ctx,
          if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
             RENDER_LINE( ELT(count-1), ELT(start) );
          else
-            RENDER_LINE( ELT(count), ELT(start-1) ); /* XXX check this one */
+            RENDER_LINE( ELT(start), ELT(count-1) );
       }
    }