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/*
* Copyright © 2023 Intel Corporation
*
* 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.
*/
#include "nir.h"
#include "nir_builder.h"
static bool
remove_tex_shadow(struct nir_builder *b, nir_instr *instr, void *data)
{
if (instr->type != nir_instr_type_tex)
return false;
nir_tex_instr *tex = nir_instr_as_tex(instr);
if (!tex->is_shadow)
return false;
unsigned *textures_bitmask = data;
if (BITFIELD_BIT(tex->texture_index) & ~*textures_bitmask)
return false;
int index = nir_tex_instr_src_index(tex, nir_tex_src_comparator);
if (index != -1) {
tex->is_shadow = false;
nir_tex_instr_remove_src(tex, index);
return true;
}
return false;
}
bool
nir_remove_tex_shadow(nir_shader *shader, unsigned textures_bitmask)
{
return nir_shader_instructions_pass(shader, remove_tex_shadow,
nir_metadata_none, &textures_bitmask);
}
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