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Code Issues 9 Packages Projects Releases Wiki Activity

nir/lower_tex: support FMASK loads with a 16-bit sample index 

Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28845>
This commit is contained in:
Marek Olšák 2024-04-13 18:09:38 -04:00 committed by Marge Bot
parent 8f1ae6c7b1
commit a01712874d
1 changed files with 5 additions and 3 deletions
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8
src/compiler/nir/nir_lower_tex.c
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@ -1423,13 +1423,15 @@ nir_lower_ms_txf_to_fragment_fetch(nir_builder *b, nir_tex_instr *tex)
/* Obtain new sample index. */
int ms_index = nir_tex_instr_src_index(tex, nir_tex_src_ms_index);
assert(ms_index >= 0);
nir_src sample = tex->src[ms_index].src;
nir_def *sample = tex->src[ms_index].src.ssa;
nir_def *new_sample = nir_ubfe(b, &fmask_fetch->def,
nir_ishl_imm(b, sample.ssa, 2), nir_imm_int(b, 3));
nir_u2u32(b, nir_ishl_imm(b, sample, 2)),
nir_imm_int(b, 3));
/* Update instruction. */
tex->op = nir_texop_fragment_fetch_amd;
nir_src_rewrite(&tex->src[ms_index].src, new_sample);
nir_src_rewrite(&tex->src[ms_index].src,
nir_u2uN(b, new_sample, sample->bit_size));
}
static void