From e0399fddf2efd556ece8b81078368e6ab388c3b7 Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Mon, 30 Nov 2009 09:21:49 -0700
Subject: softpipe: setup machine->Face without a conditional

---
 src/gallium/drivers/softpipe/sp_fs_exec.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'src')

diff --git a/src/gallium/drivers/softpipe/sp_fs_exec.c b/src/gallium/drivers/softpipe/sp_fs_exec.c
index a8999ed3479..27fa126b7c3 100644
--- a/src/gallium/drivers/softpipe/sp_fs_exec.c
+++ b/src/gallium/drivers/softpipe/sp_fs_exec.c
@@ -127,11 +127,8 @@ exec_run( const struct sp_fragment_shader *base,
                     (float)quad->input.x0, (float)quad->input.y0, 
                     &machine->QuadPos);
 
-   if (quad->input.facing) {
-      machine->Face = -1.0f;
-   } else {
-      machine->Face = 1.0f;
-   }
+   /* convert 0 to 1.0 and 1 to -1.0 */
+   machine->Face = (float) (quad->input.facing * -2 + 1);
 
    quad->inout.mask &= tgsi_exec_machine_run( machine );
    if (quad->inout.mask == 0)
-- 
cgit v1.2.3