| // Copyright 2015 The Shaderc Authors. All rights reserved. |
| // |
| // 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 LIBSHADERC_SRC_SHADERC_PRIVATE_H_ |
| #define LIBSHADERC_SRC_SHADERC_PRIVATE_H_ |
| |
| #include <cassert> |
| #include <cstdint> |
| #include <string> |
| #include <vector> |
| |
| #include "shaderc/shaderc.h" |
| |
| #include "libshaderc_util/compiler.h" |
| #include "spirv-tools/libspirv.h" |
| |
| // Described in shaderc.h. |
| struct shaderc_compilation_result { |
| virtual ~shaderc_compilation_result() {} |
| |
| // Returns the data from this compilation as a sequence of bytes. |
| virtual const char* GetBytes() const = 0; |
| |
| // The size of the output data in term of bytes. |
| size_t output_data_size = 0; |
| // Compilation messages. |
| std::string messages; |
| // Number of errors. |
| size_t num_errors = 0; |
| // Number of warnings. |
| size_t num_warnings = 0; |
| // Compilation status. |
| shaderc_compilation_status compilation_status = |
| shaderc_compilation_status_null_result_object; |
| }; |
| |
| // Compilation result class using a vector for holding the compilation |
| // output data. |
| class shaderc_compilation_result_vector : public shaderc_compilation_result { |
| public: |
| ~shaderc_compilation_result_vector() = default; |
| |
| void SetOutputData(std::vector<uint32_t>&& data) { |
| output_data_ = std::move(data); |
| } |
| |
| const char* GetBytes() const override { |
| return reinterpret_cast<const char*>(output_data_.data()); |
| } |
| |
| private: |
| // Compilation output data. In normal compilation mode, it contains the |
| // compiled SPIR-V binary code. In disassembly and preprocessing-only mode, it |
| // contains a null-terminated string which is the text output. For text |
| // output, extra bytes with value 0x00 might be appended to complete the last |
| // uint32_t element. |
| std::vector<uint32_t> output_data_; |
| }; |
| |
| // Compilation result class using a spv_binary for holding the compilation |
| // output data. |
| class shaderc_compilation_result_spv_binary |
| : public shaderc_compilation_result { |
| public: |
| ~shaderc_compilation_result_spv_binary() { spvBinaryDestroy(output_data_); } |
| |
| void SetOutputData(spv_binary data) { output_data_ = data; } |
| |
| const char* GetBytes() const override { |
| return reinterpret_cast<const char*>(output_data_->code); |
| } |
| |
| private: |
| spv_binary output_data_ = nullptr; |
| }; |
| |
| namespace shaderc_util { |
| class GlslangInitializer; |
| } |
| |
| struct shaderc_compiler { |
| shaderc_util::GlslangInitializer* initializer; |
| }; |
| |
| // Converts a shader stage from shaderc_shader_kind into a shaderc_util::Compiler::Stage. |
| // This is only valid for a specifically named shader stage, e.g. vertex through fragment, |
| // or compute. |
| inline shaderc_util::Compiler::Stage shaderc_convert_specific_stage( |
| shaderc_shader_kind kind) { |
| switch (kind) { |
| case shaderc_vertex_shader: |
| return shaderc_util::Compiler::Stage::Vertex; |
| case shaderc_fragment_shader: |
| return shaderc_util::Compiler::Stage::Fragment; |
| case shaderc_tess_control_shader: |
| return shaderc_util::Compiler::Stage::TessControl; |
| case shaderc_tess_evaluation_shader: |
| return shaderc_util::Compiler::Stage::TessEval; |
| case shaderc_geometry_shader: |
| return shaderc_util::Compiler::Stage::Geometry; |
| case shaderc_compute_shader: |
| return shaderc_util::Compiler::Stage::Compute; |
| #if NV_EXTENSIONS |
| case shaderc_raygen_shader: |
| return shaderc_util::Compiler::Stage::RayGenNV; |
| case shaderc_intersection_shader: |
| return shaderc_util::Compiler::Stage::IntersectNV; |
| case shaderc_anyhit_shader: |
| return shaderc_util::Compiler::Stage::AnyHitNV; |
| case shaderc_closesthit_shader: |
| return shaderc_util::Compiler::Stage::ClosestHitNV; |
| case shaderc_miss_shader: |
| return shaderc_util::Compiler::Stage::MissNV; |
| case shaderc_callable_shader: |
| return shaderc_util::Compiler::Stage::CallableNV; |
| case shaderc_task_shader: |
| return shaderc_util::Compiler::Stage::TaskNV; |
| case shaderc_mesh_shader: |
| return shaderc_util::Compiler::Stage::MeshNV; |
| #endif |
| default: |
| // We don't care about the other kinds. |
| break; |
| } |
| // This should not occur. |
| assert(false && "Should have specified a specific stage"); |
| return shaderc_util::Compiler::Stage::TessEval; |
| } |
| |
| #endif // LIBSHADERC_SRC_SHADERC_PRIVATE_H_ |