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brw,jay: add use_src_xy prog data field

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to complete the xy/z/w fragcoord set for accurate calculations in jay without
introducing a secondary sideband just for this boolean.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41808>
This commit is contained in:
Alyssa Rosenzweig 2026-05-21 10:06:51 -04:00 • committed by Marge Bot
parent caf2c32f42
commit cebc45af43
3 changed files with 3 additions and 2 deletions
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1
src/intel/compiler/brw/brw_compiler.h
View file

@ -560,6 +560,7 @@ struct brw_fs_prog_data {
bool uses_pos_offset;
bool uses_omask;
bool uses_kill;
bool uses_src_xy;
bool uses_src_depth;
bool uses_src_w;
bool uses_depth_w_coefficients;

2
src/intel/compiler/jay/jay_from_nir.c
View file

@ -2642,7 +2642,7 @@ setup_fragment_payload(struct nir_to_jay_state *nj, struct payload_builder *p)
}
}
if (BITSET_TEST(nj->nir->info.system_values_read, SYSTEM_VALUE_FRAG_COORD)) {
if (nj->s->prog_data->fs.uses_src_xy) {
jay_def t = jay_alloc_def(&nj->bld, GPR, 1);
jay_def lo = jay_extract_range(nj->payload.u0, 10, 4);
jay_EXPAND_QUAD(&nj->bld, t, lo, payload_u1(nj, 10, 4));

2
src/intel/compiler/jay/jay_prog_data.c
View file

@ -95,7 +95,7 @@ gather_fs_info(nir_builder *b, nir_intrinsic_instr *intr, void *data)
break;
case nir_intrinsic_load_pixel_coord_intel:
BITSET_SET(b->shader->info.system_values_read, SYSTEM_VALUE_FRAG_COORD);
prog_data->uses_src_xy = true;
break;
default: