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nir/lower_flatshade: clean up

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while in the area.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Reviewed-by: Dylan Baker <dylan.c.baker@intel.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37448>
This commit is contained in:
Alyssa Rosenzweig 2025-09-17 12:39:05 -04:00 • committed by Marge Bot
parent d6ed68212c
commit c0c70cb392
1 changed files with 10 additions and 38 deletions
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48
src/compiler/nir/nir_lower_flatshade.c
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@ -1,56 +1,29 @@
/*
* Copyright © 2015 Red Hat
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* SPDX-License-Identifier: MIT
*/
#include "nir.h"
#include "nir_builder.h"
static bool
check_location(int location)
{
return location == VARYING_SLOT_COL0 ||
location == VARYING_SLOT_COL1 ||
location == VARYING_SLOT_BFC0 ||
location == VARYING_SLOT_BFC1;
}
static bool
lower_input_io(nir_builder *b, nir_intrinsic_instr *intr, void *data)
lower(nir_builder *b, nir_intrinsic_instr *intr, void *data)
{
if (intr->intrinsic != nir_intrinsic_load_interpolated_input)
return false;
;
nir_io_semantics sem = nir_intrinsic_io_semantics(intr);
if (!check_location(sem.location))
if (!(BITFIELD64_BIT(sem.location) & VARYING_BITS_COLOR))
return false;
nir_def *interp = intr->src[0].ssa;
nir_intrinsic_instr *interp_intr = nir_def_as_intrinsic(interp);
if (nir_intrinsic_interp_mode(interp_intr) != INTERP_MODE_NONE)
nir_intrinsic_instr *interp = nir_src_as_intrinsic(intr->src[0]);
if (nir_intrinsic_interp_mode(interp) != INTERP_MODE_NONE)
return false;
b->cursor = nir_before_instr(&intr->instr);
nir_def *load = nir_load_input(b, intr->num_components,
intr->def.bit_size, intr->src[1].ssa);
nir_intrinsic_instr *new_intr = nir_def_as_intrinsic(load);
nir_intrinsic_copy_const_indices(new_intr, intr);
nir_intrinsic_copy_const_indices(nir_def_as_intrinsic(load), intr);
nir_def_replace(&intr->def, load);
return true;
}
@ -59,6 +32,5 @@ bool
nir_lower_flatshade(nir_shader *shader)
{
assert(shader->info.io_lowered);
return nir_shader_intrinsics_pass(shader, lower_input_io, nir_metadata_all,
NULL);
return nir_shader_intrinsics_pass(shader, lower, nir_metadata_all, NULL);
}