From: Francisco Jerez <curroje...@riseup.net>
This generalizes the unlit centroid workaround so it's less code and now
supports SIMD32.
Reviewed-by: Jason Ekstrand <ja...@jlekstrand.net>
---
src/intel/compiler/brw_fs_visitor.cpp | 22 ++++++++--------------
1 file changed, 8 insertions(+), 14 deletions(-)
diff --git a/src/intel/compiler/brw_fs_visitor.cpp
b/src/intel/compiler/brw_fs_visitor.cpp
index a0ebd60..ed1348b 100644
--- a/src/intel/compiler/brw_fs_visitor.cpp
+++ b/src/intel/compiler/brw_fs_visitor.cpp
@@ -281,21 +281,15 @@ fs_visitor::emit_interpolation_setup_gen6()
*/
bld.emit(FS_OPCODE_MOV_DISPATCH_TO_FLAGS);
- set_predicate_inv(BRW_PREDICATE_NORMAL, true,
- bld.half(0).MOV(horiz_offset(delta_xy[i], 0),
- horiz_offset(pixel_delta_xy, 0)));
- set_predicate_inv(BRW_PREDICATE_NORMAL, true,
- bld.half(0).MOV(horiz_offset(delta_xy[i], 8),
- horiz_offset(pixel_delta_xy, 8)));
- if (dispatch_width == 16) {
- set_predicate_inv(BRW_PREDICATE_NORMAL, true,
- bld.half(1).MOV(horiz_offset(delta_xy[i], 16),
- horiz_offset(pixel_delta_xy,
16)));
- set_predicate_inv(BRW_PREDICATE_NORMAL, true,
- bld.half(1).MOV(horiz_offset(delta_xy[i], 24),
- horiz_offset(pixel_delta_xy,
24)));
+ for (unsigned q = 0; q < dispatch_width / 8; q++) {
+ for (unsigned c = 0; c < 2; c++) {
+ const unsigned idx = c + (q & 2) + (q & 1) * dispatch_width / 8;
+ set_predicate_inv(
+ BRW_PREDICATE_NORMAL, true,
+ bld.half(q).MOV(horiz_offset(delta_xy[i], idx * 8),
+ horiz_offset(pixel_delta_xy, idx * 8)));
+ }
}
- assert(dispatch_width != 32); /* not implemented yet */
}
}
}
--
2.5.0.400.gff86faf
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