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-rw-r--r--src/gallium/drivers/softpipe/sp_fs_exec.c8
1 files changed, 7 insertions, 1 deletions
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;