51 lines
1.7 KiB
C
51 lines
1.7 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 bool
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lower_input(nir_shader *shader, nir_variable *var)
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{
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if (var->data.interpolation == INTERP_MODE_NONE &&
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(var->data.location == VARYING_SLOT_COL0 ||
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var->data.location == VARYING_SLOT_COL1 ||
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var->data.location == VARYING_SLOT_BFC0 ||
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var->data.location == VARYING_SLOT_BFC1))
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var->data.interpolation = INTERP_MODE_FLAT;
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return true;
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}
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bool
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nir_lower_flatshade(nir_shader *shader)
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{
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bool progress = false;
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nir_foreach_shader_in_variable(var, shader) {
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progress |= lower_input(shader, var);
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}
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return progress;
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}
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