>From 215714d54a7f38b9add236bcc1c795e8b5d92867 Mon Sep 17 00:00:00 2001
From: Corbin Simpson <mostawesomed...@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;
}
--
1.6.6
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