| /** |
| This code is based on the glslang_c_interface implementation by Viktor Latypov |
| **/ |
| |
| /** |
| BSD 2-Clause License |
| |
| Copyright (c) 2019, Viktor Latypov |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are met: |
| |
| 1. Redistributions of source code must retain the above copyright notice, this |
| list of conditions and the following disclaimer. |
| |
| 2. Redistributions in binary form must reproduce the above copyright notice, |
| this list of conditions and the following disclaimer in the documentation |
| and/or other materials provided with the distribution. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| **/ |
| |
| #include "glslang/Include/glslang_c_interface.h" |
| |
| #include "SPIRV/GlslangToSpv.h" |
| #include "SPIRV/Logger.h" |
| #include "SPIRV/SpvTools.h" |
| |
| typedef struct glslang_program_s { |
| glslang::TProgram* program; |
| std::vector<unsigned int> spirv; |
| std::string loggerMessages; |
| } glslang_program_t; |
| |
| static EShLanguage c_shader_stage(glslang_stage_t stage) |
| { |
| switch (stage) { |
| case GLSLANG_STAGE_VERTEX: |
| return EShLangVertex; |
| case GLSLANG_STAGE_TESSCONTROL: |
| return EShLangTessControl; |
| case GLSLANG_STAGE_TESSEVALUATION: |
| return EShLangTessEvaluation; |
| case GLSLANG_STAGE_GEOMETRY: |
| return EShLangGeometry; |
| case GLSLANG_STAGE_FRAGMENT: |
| return EShLangFragment; |
| case GLSLANG_STAGE_COMPUTE: |
| return EShLangCompute; |
| case GLSLANG_STAGE_RAYGEN_NV: |
| return EShLangRayGen; |
| case GLSLANG_STAGE_INTERSECT_NV: |
| return EShLangIntersect; |
| case GLSLANG_STAGE_ANYHIT_NV: |
| return EShLangAnyHit; |
| case GLSLANG_STAGE_CLOSESTHIT_NV: |
| return EShLangClosestHit; |
| case GLSLANG_STAGE_MISS_NV: |
| return EShLangMiss; |
| case GLSLANG_STAGE_CALLABLE_NV: |
| return EShLangCallable; |
| case GLSLANG_STAGE_TASK_NV: |
| return EShLangTaskNV; |
| case GLSLANG_STAGE_MESH_NV: |
| return EShLangMeshNV; |
| default: |
| break; |
| } |
| return EShLangCount; |
| } |
| |
| GLSLANG_EXPORT void glslang_program_SPIRV_generate(glslang_program_t* program, glslang_stage_t stage) |
| { |
| spv::SpvBuildLogger logger; |
| glslang::SpvOptions spvOptions; |
| spvOptions.validate = true; |
| |
| const glslang::TIntermediate* intermediate = program->program->getIntermediate(c_shader_stage(stage)); |
| |
| glslang::GlslangToSpv(*intermediate, program->spirv, &logger, &spvOptions); |
| |
| program->loggerMessages = logger.getAllMessages(); |
| } |
| |
| GLSLANG_EXPORT size_t glslang_program_SPIRV_get_size(glslang_program_t* program) { return program->spirv.size(); } |
| |
| GLSLANG_EXPORT void glslang_program_SPIRV_get(glslang_program_t* program, unsigned int* out) |
| { |
| memcpy(out, program->spirv.data(), program->spirv.size() * sizeof(unsigned int)); |
| } |
| |
| GLSLANG_EXPORT unsigned int* glslang_program_SPIRV_get_ptr(glslang_program_t* program) |
| { |
| return program->spirv.data(); |
| } |
| |
| GLSLANG_EXPORT const char* glslang_program_SPIRV_get_messages(glslang_program_t* program) |
| { |
| return program->loggerMessages.empty() ? nullptr : program->loggerMessages.c_str(); |
| } |