| // Copyright 2018 The Amber Authors. |
| // |
| // 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. |
| |
| #ifndef SRC_SHADER_COMPILER_H_ |
| #define SRC_SHADER_COMPILER_H_ |
| |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| #include "amber/amber.h" |
| #include "amber/result.h" |
| #include "src/pipeline.h" |
| #include "src/shader.h" |
| |
| namespace amber { |
| |
| /// Class to wrap the compilation of shaders. |
| class ShaderCompiler { |
| public: |
| ShaderCompiler(); |
| ShaderCompiler(const std::string& env, bool disable_spirv_validation); |
| ~ShaderCompiler(); |
| |
| /// Returns a result code and a compilation of the given shader. |
| /// If the shader in |shader_info| has a corresponding entry in the |
| /// |shader_map|, then the compilation result is copied from that entry. |
| /// Otherwise a compiler is invoked to produce the compilation result. |
| /// |
| /// If |shader_info| specifies shader optimizations to run and there is no |
| /// entry in |shader_map| for that shader, then the SPIRV-Tools optimizer will |
| /// be invoked to produce the shader binary. |
| std::pair<Result, std::vector<uint32_t>> Compile( |
| Pipeline::ShaderInfo* shader_info, |
| const ShaderMap& shader_map) const; |
| |
| private: |
| Result ParseHex(const std::string& data, std::vector<uint32_t>* result) const; |
| Result CompileGlsl(const Shader* shader, std::vector<uint32_t>* result) const; |
| Result CompileHlsl(const Shader* shader, std::vector<uint32_t>* result) const; |
| Result CompileOpenCLC(Pipeline::ShaderInfo* shader, |
| std::vector<uint32_t>* result) const; |
| |
| std::string spv_env_; |
| bool disable_spirv_validation_ = false; |
| }; |
| |
| // Parses the SPIR-V environment string, and returns the corresponding |
| // |target_env|, |target_env_version|, and |spirv_versoin|. Returns a failure |
| // value if the |spv_env| is invalid. |
| Result ParseSpvEnv(const std::string& spv_env, |
| uint32_t* target_env, |
| uint32_t* target_env_version, |
| uint32_t* spirv_version); |
| |
| } // namespace amber |
| |
| #endif // SRC_SHADER_COMPILER_H_ |