X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fgallium%2Fdrivers%2Fsoftpipe%2Fsp_fs_exec.c;h=27fa126b7c391e5e8e77e34b74af414b804c9206;hb=a1acbff299c444913418e65da473745cd901a2db;hp=a8999ed34794db88cf8eef71a9f70d930066a9ff;hpb=06d3732a9094030fc33120f16f162e0d405f132c;p=mesa.git

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)