Mesa (master): mesa/st: Gallium quads, by spec, never change provoking vertex.

[Marek Olšák]

Module: Mesa
Branch: master
Commit: dd8f5c33f3a54212a0d7d072cd75b321f5abcda8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=dd8f5c33f3a54212a0d7d072cd75b321f5abcda8

Author: Corbin Simpson <mostawesomed... at gmail.com>
Date:   Wed Feb 10 10:39:18 2010 -0800

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

Fixes glean/clipFlat for r300g.

---

 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 79be833..e03dd30 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;
 }