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pco: Switch to common alpha_to_coverage intrinsic

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Signed-off-by: Ella Stanforth <ella@igalia.com>
Acked-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36412>
This commit is contained in:
Ella Stanforth
2025-08-04 09:59:22 +01:00
committed by Marge Bot
parent 5ab606ccda
commit 753af683b5
3 changed files with 10 additions and 5 deletions
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src/compiler/nir/nir_intrinsics.py
-2
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@@ -2750,8 +2750,6 @@ intrinsic("flush_tile_buffer_pco", src_comp=[1, 1], indices=[BASE, RANGE])
intrinsic("dummy_load_store_pco", indices=[BASE])
intrinsic("alpha_to_coverage_pco", src_comp=[1], dest_comp=1, flags=[CAN_REORDER], bit_sizes=[32])
index("bool", "scale")
index("bool", "roundzero")
intrinsic("pack_pco", src_comp=[0], dest_comp=1, flags=[CAN_ELIMINATE, CAN_REORDER], indices=[FORMAT], bit_sizes=[32])
src/imagination/pco/pco_nir_pvfio.c
+1 -1
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@@ -682,7 +682,7 @@ lower_alpha_to_coverage(nir_builder *b, nir_instr *instr, UNUSED void *cb_data)
nir_def *alpha = input->num_components < 4 ? nir_imm_float(b, 1.0f)
: nir_channel(b, input, 3);
nir_def *a2c_mask = nir_alpha_to_coverage_pco(b, alpha);
nir_def *a2c_mask = nir_u2u32(b, nir_alpha_to_coverage(b, alpha));
a2c_mask = nir_iand(b, a2c_mask, nir_load_savmsk_vm_pco(b));
src/imagination/pco/pco_trans_nir.c
+9 -2
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@@ -1859,9 +1859,12 @@ static pco_instr *trans_intr(trans_ctx *tctx, nir_intrinsic_instr *intr)
break;
}
case nir_intrinsic_alpha_to_coverage_pco:
case nir_intrinsic_alpha_to_coverage:
assert(tctx->stage == MESA_SHADER_FRAGMENT);
instr = pco_pck(&tctx->b, dest, src[0], .pck_fmt = PCO_PCK_FMT_COV);
instr = pco_pck(&tctx->b,
pco_ref_bits(dest, 32),
src[0],
.pck_fmt = PCO_PCK_FMT_COV);
break;
case nir_intrinsic_mutex_pco:
@@ -2800,6 +2803,10 @@ static pco_instr *trans_alu(trans_ctx *tctx, nir_alu_instr *alu)
instr = pco_mov(&tctx->b, pco_ref_bits(dest, 32), src[0]);
break;
case nir_op_u2u32:
instr = pco_mov(&tctx->b, dest, pco_ref_bits(src[0], 32));
break;
case nir_op_f2i32_rtne:
instr = pco_pck(&tctx->b, dest, src[0], .pck_fmt = PCO_PCK_FMT_S32);
break;