mirror of https://gitlab.freedesktop.org/mesa/mesa
82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
/*
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* Copyright © 2023 Igalia S.L.
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* SPDX-License-Identifier: MIT
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*/
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#include "compiler/nir/nir.h"
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#include "compiler/nir/nir_builder.h"
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#include "util/u_math.h"
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#include "ir3_compiler.h"
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#include "ir3_nir.h"
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static bool
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lower_driver_param_to_ubo(nir_builder *b, nir_intrinsic_instr *intr, void *in)
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{
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struct ir3_const_state *const_state = in;
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if (b->shader->info.stage == MESA_SHADER_VERTEX)
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return false;
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unsigned components = nir_intrinsic_dest_components(intr);
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b->cursor = nir_before_instr(&intr->instr);
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nir_def *result;
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switch (intr->intrinsic) {
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case nir_intrinsic_load_primitive_location_ir3:
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result = ir3_load_driver_ubo(b, components,
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&const_state->primitive_map_ubo,
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nir_intrinsic_driver_location(intr));
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break;
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case nir_intrinsic_load_vs_primitive_stride_ir3:
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result = ir3_load_driver_ubo(b, components,
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&const_state->primitive_param_ubo, 0);
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break;
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case nir_intrinsic_load_vs_vertex_stride_ir3:
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result = ir3_load_driver_ubo(b, components,
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&const_state->primitive_param_ubo, 1);
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break;
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case nir_intrinsic_load_hs_patch_stride_ir3:
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result = ir3_load_driver_ubo(b, components,
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&const_state->primitive_param_ubo, 2);
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break;
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case nir_intrinsic_load_patch_vertices_in:
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result = ir3_load_driver_ubo(b, components,
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&const_state->primitive_param_ubo, 3);
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break;
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case nir_intrinsic_load_tess_param_base_ir3:
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result = ir3_load_driver_ubo(b, components,
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&const_state->primitive_param_ubo, 4);
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break;
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case nir_intrinsic_load_tess_factor_base_ir3:
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result = ir3_load_driver_ubo(b, components,
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&const_state->primitive_param_ubo, 6);
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break;
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default: {
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struct driver_param_info param_info;
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if (!ir3_get_driver_param_info(b->shader, intr, ¶m_info))
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return false;
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result = ir3_load_driver_ubo(b, components,
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&const_state->driver_params_ubo,
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param_info.offset);
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}
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}
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nir_instr_remove(&intr->instr);
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nir_def_rewrite_uses(&intr->def, result);
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return true;
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}
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bool
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ir3_nir_lower_driver_params_to_ubo(nir_shader *nir,
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struct ir3_shader_variant *v)
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{
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bool result = nir_shader_intrinsics_pass(
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nir, lower_driver_param_to_ubo,
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nir_metadata_block_index | nir_metadata_dominance, ir3_const_state(v));
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return result;
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}
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