From: Brian Paul <brianp@vmware.com>
Date: Thu, 4 Jun 2009 19:12:13 +0000 (-0600)
Subject: softpipe: fix incorrect tri vertex order for PIPE_PRIM_POLYGON rendering
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6907650211d136ee7cb5a8914c32196d35a75bf3;p=mesa.git

softpipe: fix incorrect tri vertex order for PIPE_PRIM_POLYGON rendering

This fixes incorrect front/back-face orientation.

(cherry picked from commit a64bbdaa3e0b036a880d6db65ceb4a66205062f1)
---

diff --git a/src/gallium/drivers/softpipe/sp_prim_vbuf.c b/src/gallium/drivers/softpipe/sp_prim_vbuf.c
index 329c92b8da1..56f12b9810d 100644
--- a/src/gallium/drivers/softpipe/sp_prim_vbuf.c
+++ b/src/gallium/drivers/softpipe/sp_prim_vbuf.c
@@ -420,8 +420,8 @@ sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr)
        */
       for (i = 2; i < nr; i += 1) {
          setup_tri( setup_ctx,
-                    get_vert(vertex_buffer, i-0, stride),
                     get_vert(vertex_buffer, i-1, stride),
+                    get_vert(vertex_buffer, i-0, stride),
                     get_vert(vertex_buffer, 0, stride));
       }
       break;