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b10cc24519
Handled by tgsi_emulate for glsl->tgsi case. Signed-off-by: Rob Clark <robclark@freedesktop.org> Reviewed-by: Connor Abbott <cwabbott0@gmail.com> Reviewed-by: Eric Anholt <eric@anholt.net>
58 lines
2.1 KiB
C
58 lines
2.1 KiB
C
/*
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* Copyright © 2015 Red Hat
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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 FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "nir.h"
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#include "nir_builder.h"
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static void
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lower_impl(nir_function_impl *impl)
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{
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nir_shader *shader = impl->function->shader;
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nir_builder b;
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nir_variable *in, *out;
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nir_ssa_def *def;
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nir_builder_init(&b, impl);
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b.cursor = nir_before_cf_list(&impl->body);
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in = nir_variable_create(shader, nir_var_shader_in,
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glsl_vec4_type(), "edgeflag_in");
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in->data.location = VERT_ATTRIB_EDGEFLAG;
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out = nir_variable_create(shader, nir_var_shader_out,
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glsl_vec4_type(), "edgeflag_out");
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out->data.location = VARYING_SLOT_EDGE;
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def = nir_load_var(&b, in);
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nir_store_var(&b, out, def, 0xf);
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nir_metadata_preserve(impl, nir_metadata_block_index |
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nir_metadata_dominance);
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}
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void nir_lower_passthrough_edgeflags(nir_shader *shader)
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{
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nir_function *function = nir_shader_get_entrypoint(shader);
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if (function->impl)
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lower_impl(function->impl);
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}
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