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nir/opt_frag_coord_to_pixel_coord: handle frag_coord_xy

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Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41227>
This commit is contained in:
Marek Olšák 2026-04-29 05:43:40 -04:00 • committed by Marge Bot
parent 076b0aaf1d
commit 9c5ad16819
1 changed files with 15 additions and 10 deletions
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25
src/compiler/nir/nir_opt_frag_coord_to_pixel_coord.c
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@ -15,7 +15,8 @@
static bool
opt_frag_pos(nir_builder *b, nir_intrinsic_instr *intr, UNUSED void *data)
{
if (intr->intrinsic != nir_intrinsic_load_frag_coord)
if (intr->intrinsic != nir_intrinsic_load_frag_coord &&
intr->intrinsic != nir_intrinsic_load_frag_coord_xy)
return false;
/* Don't increase precision. */
@ -27,14 +28,16 @@ opt_frag_pos(nir_builder *b, nir_intrinsic_instr *intr, UNUSED void *data)
if (nir_src_is_if(use))
return false;
unsigned mask = nir_src_components_read(use);
if (intr->intrinsic == nir_intrinsic_load_frag_coord) {
unsigned mask = nir_src_components_read(use);
if (!(mask & 0x3))
continue;
if (!(mask & 0x3))
continue;
/* Don't handle instructions that read x/y and z/w for simplicity. */
if (mask & ~0x3)
return false;
/* Don't handle instructions that read x/y and z/w for simplicity. */
if (mask & ~0x3)
return false;
}
nir_instr *use_instr = nir_src_parent_instr(use);
@ -62,10 +65,12 @@ opt_frag_pos(nir_builder *b, nir_intrinsic_instr *intr, UNUSED void *data)
nir_def *pixel_coord = nir_load_pixel_coord(b);
nir_foreach_use_safe(use, &intr->def) {
unsigned mask = nir_src_components_read(use);
if (intr->intrinsic == nir_intrinsic_load_frag_coord) {
unsigned mask = nir_src_components_read(use);
if (!(mask & 0x3))
continue;
if (!(mask & 0x3))
continue;
}
nir_src_rewrite(use, pixel_coord);