Fixes piglit vertex-program-two-side back.
---
src/mesa/drivers/dri/i965/gen6_sf_state.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/gen6_sf_state.c
b/src/mesa/drivers/dri/i965/gen6_sf_state.c
index bb8bc83..4482e9c 100644
--- a/src/mesa/drivers/dri/i965/gen6_sf_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_sf_state.c
@@ -67,6 +67,15 @@ get_attr_override(struct brw_vue_map *vue_map, int
urb_entry_read_offset,
/* Find the VUE slot for this attribute. */
slot = vue_map->vert_result_to_slot[vs_attr];
+
+ /* If there was only a back color written but not front, use back
+ * as the color instead of undefined
+ */
+ if (slot == -1 && vs_attr == VERT_RESULT_COL0)
+ slot = vue_map->vert_result_to_slot[VERT_RESULT_BFC0];
+ if (slot == -1 && vs_attr == VERT_RESULT_COL1)
+ slot = vue_map->vert_result_to_slot[VERT_RESULT_BFC1];
+
if (slot == -1) {
/* This attribute does not exist in the VUE--that means that the vertex
* shader did not write to it. Behavior is undefined in this case, so
--
1.7.5.4
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/mesa-dev
