dep: Add glslang
This commit is contained in:
Connor McLaughlin
461
dep/glslang/glslang/CInterface/glslang_c_interface.cpp
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461
dep/glslang/glslang/CInterface/glslang_c_interface.cpp
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@@ -0,0 +1,461 @@
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/**
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This code is based on the glslang_c_interface implementation by Viktor Latypov
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**/
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/**
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BSD 2-Clause License
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Copyright (c) 2019, Viktor Latypov
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**/
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#include "glslang/Include/glslang_c_interface.h"
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#include "SPIRV/GlslangToSpv.h"
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#include "SPIRV/Logger.h"
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#include "SPIRV/SpvTools.h"
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#include "StandAlone/DirStackFileIncluder.h"
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#include "StandAlone/ResourceLimits.h"
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#include "glslang/Include/ShHandle.h"
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#include "glslang/Include/ResourceLimits.h"
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#include "glslang/MachineIndependent/Versions.h"
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static_assert(int(GLSLANG_STAGE_COUNT) == EShLangCount, "");
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static_assert(int(GLSLANG_STAGE_MASK_COUNT) == EShLanguageMaskCount, "");
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static_assert(int(GLSLANG_SOURCE_COUNT) == glslang::EShSourceCount, "");
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static_assert(int(GLSLANG_CLIENT_COUNT) == glslang::EShClientCount, "");
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static_assert(int(GLSLANG_TARGET_COUNT) == glslang::EShTargetCount, "");
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static_assert(int(GLSLANG_TARGET_CLIENT_VERSION_COUNT) == glslang::EShTargetClientVersionCount, "");
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static_assert(int(GLSLANG_TARGET_LANGUAGE_VERSION_COUNT) == glslang::EShTargetLanguageVersionCount, "");
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static_assert(int(GLSLANG_OPT_LEVEL_COUNT) == EshOptLevelCount, "");
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static_assert(int(GLSLANG_TEX_SAMP_TRANS_COUNT) == EShTexSampTransCount, "");
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static_assert(int(GLSLANG_MSG_COUNT) == EShMsgCount, "");
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static_assert(int(GLSLANG_REFLECTION_COUNT) == EShReflectionCount, "");
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static_assert(int(GLSLANG_PROFILE_COUNT) == EProfileCount, "");
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static_assert(sizeof(glslang_limits_t) == sizeof(TLimits), "");
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static_assert(sizeof(glslang_resource_t) == sizeof(TBuiltInResource), "");
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typedef struct glslang_shader_s {
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glslang::TShader* shader;
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std::string preprocessedGLSL;
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} glslang_shader_t;
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typedef struct glslang_program_s {
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glslang::TProgram* program;
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std::vector<unsigned int> spirv;
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std::string loggerMessages;
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} glslang_program_t;
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/* Wrapper/Adapter for C glsl_include_callbacks_t functions
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This class contains a 'glsl_include_callbacks_t' structure
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with C include_local/include_system callback pointers.
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This class implement TShader::Includer interface
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by redirecting C++ virtual methods to C callbacks.
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The 'IncludeResult' instances produced by this Includer
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contain a reference to glsl_include_result_t C structure
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to allow its lifetime management by another C callback
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(CallbackIncluder::callbacks::free_include_result)
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*/
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class CallbackIncluder : public glslang::TShader::Includer {
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public:
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/* Wrapper of IncludeResult which stores a glsl_include_result object internally */
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class CallbackIncludeResult : public glslang::TShader::Includer::IncludeResult {
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public:
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CallbackIncludeResult(const std::string& headerName, const char* const headerData, const size_t headerLength,
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void* userData, glsl_include_result_t* includeResult)
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: glslang::TShader::Includer::IncludeResult(headerName, headerData, headerLength, userData),
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includeResult(includeResult)
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{
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}
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virtual ~CallbackIncludeResult() {}
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protected:
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friend class CallbackIncluder;
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glsl_include_result_t* includeResult;
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};
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public:
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CallbackIncluder(glsl_include_callbacks_t _callbacks, void* _context) : callbacks(_callbacks), context(_context) {}
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virtual ~CallbackIncluder() {}
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virtual IncludeResult* includeSystem(const char* headerName, const char* includerName,
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size_t inclusionDepth) override
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{
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if (this->callbacks.include_system) {
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glsl_include_result_t* result =
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this->callbacks.include_system(this->context, headerName, includerName, inclusionDepth);
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return new CallbackIncludeResult(std::string(headerName), result->header_data, result->header_length,
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nullptr, result);
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}
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return glslang::TShader::Includer::includeSystem(headerName, includerName, inclusionDepth);
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}
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virtual IncludeResult* includeLocal(const char* headerName, const char* includerName,
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size_t inclusionDepth) override
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{
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if (this->callbacks.include_local) {
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glsl_include_result_t* result =
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this->callbacks.include_local(this->context, headerName, includerName, inclusionDepth);
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return new CallbackIncludeResult(std::string(headerName), result->header_data, result->header_length,
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nullptr, result);
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}
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return glslang::TShader::Includer::includeLocal(headerName, includerName, inclusionDepth);
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}
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/* This function only calls free_include_result callback
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when the IncludeResult instance is allocated by a C function */
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virtual void releaseInclude(IncludeResult* result) override
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{
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if (result == nullptr)
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return;
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if (this->callbacks.free_include_result && (result->userData == nullptr)) {
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CallbackIncludeResult* innerResult = static_cast<CallbackIncludeResult*>(result);
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/* use internal free() function */
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this->callbacks.free_include_result(this->context, innerResult->includeResult);
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/* ignore internal fields of TShader::Includer::IncludeResult */
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delete result;
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return;
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}
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delete[] static_cast<char*>(result->userData);
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delete result;
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}
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private:
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CallbackIncluder() {}
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/* C callback pointers */
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glsl_include_callbacks_t callbacks;
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/* User-defined context */
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void* context;
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};
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int glslang_initialize_process() { return static_cast<int>(glslang::InitializeProcess()); }
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void glslang_finalize_process() { glslang::FinalizeProcess(); }
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static EShLanguage c_shader_stage(glslang_stage_t stage)
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{
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switch (stage) {
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case GLSLANG_STAGE_VERTEX:
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return EShLangVertex;
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case GLSLANG_STAGE_TESSCONTROL:
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return EShLangTessControl;
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case GLSLANG_STAGE_TESSEVALUATION:
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return EShLangTessEvaluation;
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case GLSLANG_STAGE_GEOMETRY:
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return EShLangGeometry;
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case GLSLANG_STAGE_FRAGMENT:
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return EShLangFragment;
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case GLSLANG_STAGE_COMPUTE:
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return EShLangCompute;
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case GLSLANG_STAGE_RAYGEN_NV:
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return EShLangRayGen;
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case GLSLANG_STAGE_INTERSECT_NV:
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return EShLangIntersect;
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case GLSLANG_STAGE_ANYHIT_NV:
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return EShLangAnyHit;
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case GLSLANG_STAGE_CLOSESTHIT_NV:
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return EShLangClosestHit;
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case GLSLANG_STAGE_MISS_NV:
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return EShLangMiss;
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case GLSLANG_STAGE_CALLABLE_NV:
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return EShLangCallable;
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case GLSLANG_STAGE_TASK_NV:
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return EShLangTaskNV;
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case GLSLANG_STAGE_MESH_NV:
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return EShLangMeshNV;
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default:
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break;
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}
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return EShLangCount;
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}
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static int c_shader_messages(glslang_messages_t messages)
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{
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#define CONVERT_MSG(in, out) \
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if ((messages & in) == in) \
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res |= out;
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int res = 0;
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CONVERT_MSG(GLSLANG_MSG_RELAXED_ERRORS_BIT, EShMsgRelaxedErrors);
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CONVERT_MSG(GLSLANG_MSG_SUPPRESS_WARNINGS_BIT, EShMsgSuppressWarnings);
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CONVERT_MSG(GLSLANG_MSG_AST_BIT, EShMsgAST);
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CONVERT_MSG(GLSLANG_MSG_SPV_RULES_BIT, EShMsgSpvRules);
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CONVERT_MSG(GLSLANG_MSG_VULKAN_RULES_BIT, EShMsgVulkanRules);
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CONVERT_MSG(GLSLANG_MSG_ONLY_PREPROCESSOR_BIT, EShMsgOnlyPreprocessor);
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CONVERT_MSG(GLSLANG_MSG_READ_HLSL_BIT, EShMsgReadHlsl);
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CONVERT_MSG(GLSLANG_MSG_CASCADING_ERRORS_BIT, EShMsgCascadingErrors);
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CONVERT_MSG(GLSLANG_MSG_KEEP_UNCALLED_BIT, EShMsgKeepUncalled);
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CONVERT_MSG(GLSLANG_MSG_HLSL_OFFSETS_BIT, EShMsgHlslOffsets);
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CONVERT_MSG(GLSLANG_MSG_DEBUG_INFO_BIT, EShMsgDebugInfo);
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CONVERT_MSG(GLSLANG_MSG_HLSL_ENABLE_16BIT_TYPES_BIT, EShMsgHlslEnable16BitTypes);
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CONVERT_MSG(GLSLANG_MSG_HLSL_LEGALIZATION_BIT, EShMsgHlslLegalization);
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CONVERT_MSG(GLSLANG_MSG_HLSL_DX9_COMPATIBLE_BIT, EShMsgHlslDX9Compatible);
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CONVERT_MSG(GLSLANG_MSG_BUILTIN_SYMBOL_TABLE_BIT, EShMsgBuiltinSymbolTable);
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return res;
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#undef CONVERT_MSG
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}
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static glslang::EShTargetLanguageVersion
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c_shader_target_language_version(glslang_target_language_version_t target_language_version)
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{
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switch (target_language_version) {
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case GLSLANG_TARGET_SPV_1_0:
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return glslang::EShTargetSpv_1_0;
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case GLSLANG_TARGET_SPV_1_1:
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return glslang::EShTargetSpv_1_1;
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case GLSLANG_TARGET_SPV_1_2:
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return glslang::EShTargetSpv_1_2;
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case GLSLANG_TARGET_SPV_1_3:
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return glslang::EShTargetSpv_1_3;
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case GLSLANG_TARGET_SPV_1_4:
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return glslang::EShTargetSpv_1_4;
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case GLSLANG_TARGET_SPV_1_5:
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return glslang::EShTargetSpv_1_5;
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default:
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break;
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}
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return glslang::EShTargetSpv_1_0;
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}
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static glslang::EShClient c_shader_client(glslang_client_t client)
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{
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switch (client) {
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case GLSLANG_CLIENT_VULKAN:
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return glslang::EShClientVulkan;
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case GLSLANG_CLIENT_OPENGL:
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return glslang::EShClientOpenGL;
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default:
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break;
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}
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return glslang::EShClientNone;
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}
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static glslang::EShTargetClientVersion c_shader_client_version(glslang_target_client_version_t client_version)
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{
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switch (client_version) {
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case GLSLANG_TARGET_VULKAN_1_1:
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return glslang::EShTargetVulkan_1_1;
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case GLSLANG_TARGET_OPENGL_450:
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return glslang::EShTargetOpenGL_450;
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default:
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break;
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}
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return glslang::EShTargetVulkan_1_0;
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}
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static glslang::EShTargetLanguage c_shader_target_language(glslang_target_language_t target_language)
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{
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if (target_language == GLSLANG_TARGET_NONE)
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return glslang::EShTargetNone;
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return glslang::EShTargetSpv;
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}
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static glslang::EShSource c_shader_source(glslang_source_t source)
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{
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switch (source) {
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case GLSLANG_SOURCE_GLSL:
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return glslang::EShSourceGlsl;
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case GLSLANG_SOURCE_HLSL:
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return glslang::EShSourceHlsl;
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default:
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break;
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}
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return glslang::EShSourceNone;
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}
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static EProfile c_shader_profile(glslang_profile_t profile)
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{
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switch (profile) {
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case GLSLANG_BAD_PROFILE:
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return EBadProfile;
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case GLSLANG_NO_PROFILE:
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return ENoProfile;
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case GLSLANG_CORE_PROFILE:
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return ECoreProfile;
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case GLSLANG_COMPATIBILITY_PROFILE:
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return ECompatibilityProfile;
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case GLSLANG_ES_PROFILE:
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return EEsProfile;
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case GLSLANG_PROFILE_COUNT: // Should not use this
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break;
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}
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return EProfile();
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}
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glslang_shader_t* glslang_shader_create(const glslang_input_t* input)
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{
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if (!input || !input->code) {
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printf("Error creating shader: null input(%p)/input->code\n", input);
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if (input)
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printf("input->code = %p\n", input->code);
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return nullptr;
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}
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glslang_shader_t* shader = new glslang_shader_t();
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shader->shader = new glslang::TShader(c_shader_stage(input->stage));
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shader->shader->setStrings(&input->code, 1);
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shader->shader->setEnvInput(c_shader_source(input->language), c_shader_stage(input->stage),
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c_shader_client(input->client), input->default_version);
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shader->shader->setEnvClient(c_shader_client(input->client), c_shader_client_version(input->client_version));
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shader->shader->setEnvTarget(c_shader_target_language(input->target_language),
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c_shader_target_language_version(input->target_language_version));
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return shader;
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}
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const char* glslang_shader_get_preprocessed_code(glslang_shader_t* shader)
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{
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return shader->preprocessedGLSL.c_str();
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}
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int glslang_shader_preprocess(glslang_shader_t* shader, const glslang_input_t* input)
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{
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DirStackFileIncluder Includer;
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/* TODO: use custom callbacks if they are available in 'i->callbacks' */
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return shader->shader->preprocess(
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reinterpret_cast<const TBuiltInResource*>(input->resource),
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input->default_version,
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c_shader_profile(input->default_profile),
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input->force_default_version_and_profile != 0,
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input->forward_compatible != 0,
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(EShMessages)c_shader_messages(input->messages),
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&shader->preprocessedGLSL,
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Includer
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||||
);
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}
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int glslang_shader_parse(glslang_shader_t* shader, const glslang_input_t* input)
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{
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const char* preprocessedCStr = shader->preprocessedGLSL.c_str();
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shader->shader->setStrings(&preprocessedCStr, 1);
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return shader->shader->parse(
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reinterpret_cast<const TBuiltInResource*>(input->resource),
|
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input->default_version,
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input->forward_compatible != 0,
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(EShMessages)c_shader_messages(input->messages)
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||||
);
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||||
}
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const char* glslang_shader_get_info_log(glslang_shader_t* shader) { return shader->shader->getInfoLog(); }
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||||
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const char* glslang_shader_get_info_debug_log(glslang_shader_t* shader) { return shader->shader->getInfoDebugLog(); }
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void glslang_shader_delete(glslang_shader_t* shader)
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{
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if (!shader)
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return;
|
||||
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||||
delete (shader->shader);
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delete (shader);
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||||
}
|
||||
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glslang_program_t* glslang_program_create()
|
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{
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||||
glslang_program_t* p = new glslang_program_t();
|
||||
p->program = new glslang::TProgram();
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||||
return p;
|
||||
}
|
||||
|
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void glslang_program_SPIRV_generate(glslang_program_t* program, glslang_stage_t stage)
|
||||
{
|
||||
spv::SpvBuildLogger logger;
|
||||
glslang::SpvOptions spvOptions;
|
||||
spvOptions.validate = true;
|
||||
|
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const glslang::TIntermediate* intermediate = program->program->getIntermediate(c_shader_stage(stage));
|
||||
|
||||
glslang::GlslangToSpv(*intermediate, program->spirv, &logger, &spvOptions);
|
||||
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||||
program->loggerMessages = logger.getAllMessages();
|
||||
}
|
||||
|
||||
size_t glslang_program_SPIRV_get_size(glslang_program_t* program) { return program->spirv.size(); }
|
||||
|
||||
void glslang_program_SPIRV_get(glslang_program_t* program, unsigned int* out)
|
||||
{
|
||||
memcpy(out, program->spirv.data(), program->spirv.size() * sizeof(unsigned int));
|
||||
}
|
||||
|
||||
unsigned int* glslang_program_SPIRV_get_ptr(glslang_program_t* program)
|
||||
{
|
||||
return program->spirv.data();
|
||||
}
|
||||
|
||||
const char* glslang_program_SPIRV_get_messages(glslang_program_t* program)
|
||||
{
|
||||
return program->loggerMessages.empty() ? nullptr : program->loggerMessages.c_str();
|
||||
}
|
||||
|
||||
void glslang_program_delete(glslang_program_t* program)
|
||||
{
|
||||
if (!program)
|
||||
return;
|
||||
|
||||
delete (program->program);
|
||||
delete (program);
|
||||
}
|
||||
|
||||
void glslang_program_add_shader(glslang_program_t* program, glslang_shader_t* shader)
|
||||
{
|
||||
program->program->addShader(shader->shader);
|
||||
}
|
||||
|
||||
int glslang_program_link(glslang_program_t* program, int messages)
|
||||
{
|
||||
return (int)program->program->link((EShMessages)messages);
|
||||
}
|
||||
|
||||
const char* glslang_program_get_info_log(glslang_program_t* program)
|
||||
{
|
||||
return program->program->getInfoLog();
|
||||
}
|
||||
|
||||
const char* glslang_program_get_info_debug_log(glslang_program_t* program)
|
||||
{
|
||||
return program->program->getInfoDebugLog();
|
||||
}
|
||||
Reference in New Issue
Block a user