Added original glslang_c_interface implementation by Viktor Latypov
This commit is contained in:
Sergey Kosarevsky
parent
bd97b6f9f2
commit
8cded6ccb9
3 changed files with 797 additions and 0 deletions
502
glslang/CInterface/glslang_c_interface.cpp
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502
glslang/CInterface/glslang_c_interface.cpp
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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_c_interface.h"
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#include "glslang/Include/ShHandle.h"
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#include "StandAlone/DirStackFileIncluder.h"
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#include "StandAlone/ResourceLimits.h"
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#include "SPIRV/Logger.h"
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#include "SPIRV/SpvTools.h"
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#include "SPIRV/GlslangToSpv.h"
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#include "glslang/Include/ResourceLimits.h"
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#include "glslang/MachineIndependent/Versions.h"
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typedef struct glslang_shader_s
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{
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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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{
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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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{
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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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{
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public:
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CallbackIncludeResult(const std::string& headerName,
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const char* const headerData,
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const size_t headerLength,
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void* userData,
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glsl_include_result_t* includeResult):
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glslang::TShader::Includer::IncludeResult(
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headerName, headerData, headerLength, userData),
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includeResult(includeResult)
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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):
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callbacks(_callbacks),
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context(_context)
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{}
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virtual ~CallbackIncluder() {}
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virtual IncludeResult* includeSystem(const char* headerName,
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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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{
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glsl_include_result_t* result =
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this->callbacks.include_system(
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this->context,
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headerName,
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includerName,
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inclusionDepth);
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return new CallbackIncludeResult(
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std::string(headerName),
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result->header_data,
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result->header_length,
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nullptr,
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result
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);
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}
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return glslang::TShader::Includer::includeSystem(
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headerName, includerName, inclusionDepth);
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}
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virtual IncludeResult* includeLocal(const char* headerName,
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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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{
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glsl_include_result_t* result =
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this->callbacks.include_local(
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this->context,
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headerName,
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includerName,
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inclusionDepth);
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return new CallbackIncludeResult(
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std::string(headerName),
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result->header_data,
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result->header_length,
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nullptr,
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result
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);
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}
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return glslang::TShader::Includer::includeLocal(
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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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{
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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()
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{
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return static_cast<int>(glslang::InitializeProcess());
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}
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void glslang_finalize_process()
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{
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glslang::FinalizeProcess();
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}
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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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{
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case SH_STAGE_VERTEX:
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return EShLangVertex;
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case SH_STAGE_TESSCONTROL:
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return EShLangTessControl;
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case SH_STAGE_TESSEVALUATION:
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return EShLangTessEvaluation;
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case SH_STAGE_GEOMETRY:
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return EShLangGeometry;
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case SH_STAGE_FRAGMENT:
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return EShLangFragment;
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case SH_STAGE_COMPUTE:
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return EShLangCompute;
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case SH_STAGE_RAYGEN_NV:
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return EShLangRayGenNV;
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case SH_STAGE_INTERSECT_NV:
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return EShLangIntersectNV;
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case SH_STAGE_ANYHIT_NV:
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return EShLangAnyHitNV;
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case SH_STAGE_CLOSESTHIT_NV:
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return EShLangClosestHitNV;
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case SH_STAGE_MISS_NV:
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return EShLangMissNV;
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case SH_STAGE_CALLABLE_NV:
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return EShLangCallableNV;
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case SH_STAGE_TASK_NV:
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return EShLangTaskNV;
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case SH_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 EShMessages c_shader_messages(glslang_messages_t messages)
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{
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switch(messages)
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{
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case SH_MSG_RELAXED_ERRORS:
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return EShMsgRelaxedErrors;
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case SH_MSG_SUPPRESS_WARNINGS:
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return EShMsgSuppressWarnings;
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case SH_MSG_AST:
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return EShMsgAST;
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case SH_MSG_SPV_RULES:
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return EShMsgSpvRules;
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case SH_MSG_VULKAN_RULES:
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return EShMsgVulkanRules;
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case SH_MSG_ONLY_PREPROCESSOR:
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return EShMsgOnlyPreprocessor;
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case SH_MSG_READ_HLSL:
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return EShMsgReadHlsl;
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case SH_MSG_CASCADING_ERRORS:
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return EShMsgCascadingErrors;
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case SH_MSG_KEEP_UNCALLED:
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return EShMsgKeepUncalled;
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case SH_MSG_HLSL_OFFSETS:
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return EShMsgHlslOffsets;
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case SH_MSG_DEBUG_INFO:
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return EShMsgDebugInfo;
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case SH_MSG_HLSL_ENABLE_16BIT_TYPES:
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return EShMsgHlslEnable16BitTypes;
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case SH_MSG_HLSL_LEGALIZATION:
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return EShMsgHlslLegalization;
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case SH_MSG_HLSL_DX9_COMPATIBLE:
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return EShMsgHlslDX9Compatible;
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case SH_MSG_BUILTIN_SYMBOL_TABLE:
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return EShMsgBuiltinSymbolTable;
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default:
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break;
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}
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return EShMsgDefault;
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}
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static glslang::EShTargetLanguageVersion 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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{
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case SH_TARGET_SPV_1_0:
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return glslang::EShTargetSpv_1_0;
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case SH_TARGET_SPV_1_1:
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return glslang::EShTargetSpv_1_1;
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case SH_TARGET_SPV_1_2:
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return glslang::EShTargetSpv_1_2;
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case SH_TARGET_SPV_1_3:
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return glslang::EShTargetSpv_1_3;
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case SH_TARGET_SPV_1_4:
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return glslang::EShTargetSpv_1_4;
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case SH_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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{
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case SH_CLIENT_VULKAN:
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return glslang::EShClientVulkan;
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case SH_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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{
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case SH_TARGET_VULKAN_1_1:
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return glslang::EShTargetVulkan_1_1;
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case SH_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 == SH_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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{
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case SH_SOURCE_GLSL:
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return glslang::EShSourceGlsl;
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case SH_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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{
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case SH_BAD_PROFILE:
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return EBadProfile;
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case SH_NO_PROFILE:
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return ENoProfile;
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case SH_CORE_PROFILE:
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return ECoreProfile;
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case SH_COMPATIBILITY_PROFILE:
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return ECompatibilityProfile;
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case SH_ES_PROFILE:
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return EEsProfile;
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}
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return EProfile();
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}
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glslang_shader_t *glslang_shader_create(glslang_input_t *input)
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{
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if ( !input || !input->code )
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{
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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), 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), 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, glslang_input_t* i)
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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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/* No user-defined resources limit */
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&glslang::DefaultTBuiltInResource,
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i->default_version,
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c_shader_profile(i->default_profile),
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(bool)i->force_default_version_and_profile,
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(bool)i->forward_compatible,
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c_shader_messages(i->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, 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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/* No user-defined resource limits for now */
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&glslang::DefaultTBuiltInResource,
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input->default_version,
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(bool)input->forward_compatible,
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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)
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{
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return shader->shader->getInfoLog();
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}
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const char* glslang_shader_get_info_debug_log(glslang_shader_t *shader)
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{
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return shader->shader->getInfoDebugLog();
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}
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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();
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p->program = new glslang::TProgram();
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return p;
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}
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void glslang_program_SPIRV_generate(glslang_program_t *program, glslang_stage_t stage )
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{
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spv::SpvBuildLogger logger;
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glslang::SpvOptions spvOptions;
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spvOptions.validate = true;
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const glslang::TIntermediate* intermediate = program->program->getIntermediate( c_shader_stage(stage) );
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glslang::GlslangToSpv( *intermediate, program->spirv, &logger, &spvOptions );
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program->loggerMessages = logger.getAllMessages();
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}
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size_t glslang_program_SPIRV_get_size(glslang_program_t *program)
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{
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return program->spirv.size();
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}
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void glslang_program_SPIRV_get(glslang_program_t *program, unsigned int* out)
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{
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memcpy( out, program->spirv.data(), program->spirv.size() * sizeof( unsigned int ) );
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}
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const char* glslang_program_SPIRV_get_messages(glslang_program_t *program)
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{
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return program->loggerMessages.empty() ? nullptr : program->loggerMessages.c_str();
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}
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void glslang_program_delete(glslang_program_t *program)
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{
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if (!program)
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return;
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delete(program->program);
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delete(program);
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}
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void glslang_program_add_shader(glslang_program_t *program, glslang_shader_t *shader)
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{
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program->program->addShader(shader->shader);
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}
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|
||||
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();
|
||||
}
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue