bgfx/3rdparty/spirv-cross/spirv_cross_util.cpp

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/*
* Copyright 2015-2019 Arm Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "spirv_cross_util.hpp"
#include "spirv_common.hpp"
using namespace spv;
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using namespace SPIRV_CROSS_NAMESPACE;
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namespace spirv_cross_util
{
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void rename_interface_variable(Compiler &compiler, const SmallVector<Resource> &resources, uint32_t location,
const std::string &name)
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{
for (auto &v : resources)
{
if (!compiler.has_decoration(v.id, spv::DecorationLocation))
continue;
auto loc = compiler.get_decoration(v.id, spv::DecorationLocation);
if (loc != location)
continue;
auto &type = compiler.get_type(v.base_type_id);
// This is more of a friendly variant. If we need to rename interface variables, we might have to rename
// structs as well and make sure all the names match up.
if (type.basetype == SPIRType::Struct)
{
compiler.set_name(v.base_type_id, join("SPIRV_Cross_Interface_Location", location));
for (uint32_t i = 0; i < uint32_t(type.member_types.size()); i++)
compiler.set_member_name(v.base_type_id, i, join("InterfaceMember", i));
}
compiler.set_name(v.id, name);
}
}
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void inherit_combined_sampler_bindings(Compiler &compiler)
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{
auto &samplers = compiler.get_combined_image_samplers();
for (auto &s : samplers)
{
if (compiler.has_decoration(s.image_id, spv::DecorationDescriptorSet))
{
uint32_t set = compiler.get_decoration(s.image_id, spv::DecorationDescriptorSet);
compiler.set_decoration(s.combined_id, spv::DecorationDescriptorSet, set);
}
if (compiler.has_decoration(s.image_id, spv::DecorationBinding))
{
uint32_t binding = compiler.get_decoration(s.image_id, spv::DecorationBinding);
compiler.set_decoration(s.combined_id, spv::DecorationBinding, binding);
}
}
}
} // namespace spirv_cross_util