[PATCH] mesa/st: Gallium quads, by spec, never change provoking vertex.

From: Corbin Simpson <mostawesomedude@gmail.com>
To: DRI-Development <dri-devel@lists.sourceforge.net>
Subject: [PATCH] mesa/st: Gallium quads, by spec, never change provoking vertex.
Date: Wed, 10 Feb 2010 11:02:10 -0800	[thread overview]
Message-ID: <e7bd23c31002101102r431d5d8bka9ce9d9ffe948490@mail.gmail.com> (raw)

>From 215714d54a7f38b9add236bcc1c795e8b5d92867 Mon Sep 17 00:00:00 2001
From: Corbin Simpson <MostAwesomeDude@gmail.com>
Date: Wed, 10 Feb 2010 10:39:18 -0800
Subject: [PATCH] mesa/st: Gallium quads, by spec, never change provoking vertex.

Fixes glean/clipFlat. Softpipe might be broken; I haven't figured out
how to test it in this new API world. :T
---
 src/mesa/state_tracker/st_extensions.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/mesa/state_tracker/st_extensions.c
b/src/mesa/state_tracker/st_extensions.c
index d5f5854..e2d871b 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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