diff options
| author | Eric Anholt <[email protected]> | 2011-09-08 15:31:22 -0700 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2011-09-21 09:46:39 -0700 |
| commit | d158f6e73b0b7306f7bee246d2349c490041e449 (patch) | |
| tree | 4d37dc9aef6f0791f29e1c7a5aa0e9db5256e4ef | |
| parent | 447c488d77ea9710e0ffc238953917189d3000c7 (diff) | |
i965/gen6+: When only BFC is written, use BFC as the color.
Fixes piglit vertex-program-two-side enabled back back2
| -rw-r--r-- | 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 bb8bc835d3d..4482e9cc09f 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 |