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nak/nir: Use prmt for barycentric offset lowering

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30218>
This commit is contained in:
Faith Ekstrand
2024-07-16 17:37:37 -05:00
committed by Marge Bot
parent fffbd3ff2b
commit 24d5acf052
1 changed files with 3 additions and 3 deletions
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6
src/nouveau/compiler/nak_nir_lower_fs_inputs.c
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@@ -142,9 +142,9 @@ load_barycentric_offset(nir_builder *b, nir_intrinsic_instr *bary,
nir_imm_float(b, 0.437500));
nir_def *offset_fixed =
nir_f2i32(b, nir_fmul_imm(b, offset_f, 4096.0));
nir_def *offset = nir_ior(b, nir_ishl_imm(b, nir_channel(b, offset_fixed, 1), 16),
nir_iand_imm(b, nir_channel(b, offset_fixed, 0),
0xffff));
nir_def *offset = nir_prmt_nv(b, nir_imm_int(b, 0x5410),
nir_channel(b, offset_fixed, 0),
nir_channel(b, offset_fixed, 1));
return offset;
}