From cc93fa3527e64963acd0e643d7d1061306d9e1df Mon Sep 17 00:00:00 2001
From: Michal Krol <michal@vmware.com>
Date: Mon, 23 Nov 2009 10:51:07 +0100
Subject: [PATCH] softpipe: Initialise TGSI machine's Face.

---
 src/gallium/drivers/softpipe/sp_fs_exec.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/softpipe/sp_fs_exec.c b/src/gallium/drivers/softpipe/sp_fs_exec.c
index 4076114d392..a8999ed3479 100644
--- a/src/gallium/drivers/softpipe/sp_fs_exec.c
+++ b/src/gallium/drivers/softpipe/sp_fs_exec.c
@@ -126,7 +126,13 @@ exec_run( const struct sp_fragment_shader *base,
    setup_pos_vector(quad->posCoef, 
                     (float)quad->input.x0, (float)quad->input.y0, 
                     &machine->QuadPos);
-   
+
+   if (quad->input.facing) {
+      machine->Face = -1.0f;
+   } else {
+      machine->Face = 1.0f;
+   }
+
    quad->inout.mask &= tgsi_exec_machine_run( machine );
    if (quad->inout.mask == 0)
       return FALSE;
-- 
2.30.2