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54 lines
2.2 KiB
C
54 lines
2.2 KiB
C
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/*
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* Copyright © 2016 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "nir_builder.h"
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void
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nir_lower_tes_patch_vertices(nir_shader *tes_nir, unsigned patch_vertices)
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{
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nir_foreach_function(function, tes_nir) {
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if (function->impl) {
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nir_foreach_block(block, function->impl) {
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nir_builder b;
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nir_builder_init(&b, function->impl);
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nir_foreach_instr_safe(instr, block) {
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if (instr->type == nir_instr_type_intrinsic) {
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nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
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if (intr->intrinsic != nir_intrinsic_load_patch_vertices_in)
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continue;
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b.cursor = nir_before_instr(&intr->instr);
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nir_ssa_def *val = nir_imm_int(&b, patch_vertices);
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nir_ssa_def_rewrite_uses(&intr->dest.ssa,
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nir_src_for_ssa(val));
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nir_instr_remove(instr);
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}
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}
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}
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nir_metadata_preserve(function->impl, nir_metadata_block_index |
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nir_metadata_dominance);
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}
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}
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}
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