a489ba7fd1
- Replace ostringstream with custom implementation. ~30% performance uplift on vector-shuffle-oom test. Allocations are measurably reduced in Valgrind. - Replace std::vector with SmallVector. Classic malloc optimization, small vectors are backed by inline data. ~ 7-8% gain on vector-shuffle-oom on GCC 8 on Linux. - Use an object pool for IVariant type. We generally allocate a lot of SPIR* objects. We can amortize these allocations neatly by pooling them. - ~15% overall uplift on ./test_shaders.py --iterations 10000 shaders/.
84 lines
2.1 KiB
C++
84 lines
2.1 KiB
C++
/*
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* Copyright 2018-2019 Bradley Austin Davis
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SPIRV_CROSS_REFLECT_HPP
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#define SPIRV_CROSS_REFLECT_HPP
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#include "spirv_glsl.hpp"
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#include <utility>
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namespace simple_json
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{
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class Stream;
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}
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namespace SPIRV_CROSS_NAMESPACE
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{
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class CompilerReflection : public CompilerGLSL
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{
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using Parent = CompilerGLSL;
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public:
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explicit CompilerReflection(SmallVector<uint32_t> spirv_)
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: Parent(std::move(spirv_))
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{
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options.vulkan_semantics = true;
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}
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CompilerReflection(const uint32_t *ir_, size_t word_count)
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: Parent(ir_, word_count)
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{
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options.vulkan_semantics = true;
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}
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explicit CompilerReflection(const ParsedIR &ir_)
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: CompilerGLSL(ir_)
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{
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options.vulkan_semantics = true;
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}
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explicit CompilerReflection(ParsedIR &&ir_)
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: CompilerGLSL(std::move(ir_))
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{
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options.vulkan_semantics = true;
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}
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void set_format(const std::string &format);
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std::string compile() override;
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private:
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static std::string execution_model_to_str(spv::ExecutionModel model);
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void emit_entry_points();
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void emit_types();
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void emit_resources();
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void emit_specialization_constants();
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void emit_type(const SPIRType &type, bool &emitted_open_tag);
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void emit_type_member(const SPIRType &type, uint32_t index);
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void emit_type_member_qualifiers(const SPIRType &type, uint32_t index);
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void emit_type_array(const SPIRType &type);
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void emit_resources(const char *tag, const SmallVector<Resource> &resources);
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std::string to_member_name(const SPIRType &type, uint32_t index) const;
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std::shared_ptr<simple_json::Stream> json_stream;
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};
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} // namespace SPIRV_CROSS_NAMESPACE
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#endif
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