From dd8f5c33f3a54212a0d7d072cd75b321f5abcda8 Mon Sep 17 00:00:00 2001
From: Corbin Simpson <mostawesomed...@gmail.com>
Date: Wed, 10 Feb 2010 10:39:18 -0800
Subject: mesa/st: Gallium quads, by spec, never change provoking vertex.

Fixes glean/clipFlat for r300g.
---
 src/mesa/state_tracker/st_extensions.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 79be833768..e03dd30f0f 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -137,6 +137,9 @@ void st_init_limits(struct st_context *st)
    /* XXX separate query for early function return? */
    st->ctx->Shader.EmitContReturn =
       screen->get_param(screen, PIPE_CAP_TGSI_CONT_SUPPORTED);
+
+   /* Quads always follow GL provoking rules. */
+   c->QuadsFollowProvokingVertexConvention = GL_FALSE;
 }
 
 
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