Mesa (master): i965/clip: Enable interpolation of clip distances

[Chris Forbes]

Module: Mesa
Branch: master
Commit: c5e2d0454b61d7dc44b1f0be00980cabad3db27d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c5e2d0454b61d7dc44b1f0be00980cabad3db27d

Author: Chris Forbes <chrisf at ijw.co.nz>
Date:   Mon Jul  8 04:48:52 2013 +1200

i965/clip: Enable interpolation of clip distances

Previously we had disabled interpolation of the clip distances as a
special case, since they were unused.

Signed-off-by: Chris Forbes <chrisf at ijw.co.nz>
Reviewed-by: Paul Berry <stereotype441 at gmail.com>

---

 src/mesa/drivers/dri/i965/brw_clip_util.c |   10 +++-------
 1 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_clip_util.c b/src/mesa/drivers/dri/i965/brw_clip_util.c
index 8500b8b..2ba4dcb 100644
--- a/src/mesa/drivers/dri/i965/brw_clip_util.c
+++ b/src/mesa/drivers/dri/i965/brw_clip_util.c
@@ -256,13 +256,9 @@ void brw_clip_interp_vertex( struct brw_clip_compile *c,
 	    brw_MOV(p, deref_4f(dest_ptr, delta), brw_imm_f(1));
 	 else
 	    brw_MOV(p, deref_4f(dest_ptr, delta), deref_4f(v0_ptr, delta));
-      } else if (varying == VARYING_SLOT_PSIZ ||
-                 varying == VARYING_SLOT_CLIP_DIST0 ||
-                 varying == VARYING_SLOT_CLIP_DIST1) {
-	 /* PSIZ doesn't need interpolation because it isn't used by the
-          * fragment shader.  CLIP_DIST0 and CLIP_DIST1 don't need
-          * intepolation because on pre-GEN6, these are just placeholder VUE
-          * slots that don't perform any action.
+      } else if (varying == VARYING_SLOT_PSIZ) {
+         /* PSIZ doesn't need interpolation because it isn't used by the
+          * fragment shader.
           */
       } else if (varying < VARYING_SLOT_MAX) {
 	 /* This is a true vertex result (and not a special value for the VUE