723 lines
17 KiB
C++
723 lines
17 KiB
C++
/*
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* Copyright 2011-2016 Branimir Karadzic. All rights reserved.
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* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
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*/
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#include "shaderc.h"
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#include <ShaderLang.h>
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#include <ResourceLimits.h>
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#include <SPIRV/SPVRemapper.h>
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//#include <spirv-tools/libspirv.hpp>
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//#include <spirv-tools/optimizer.hpp>
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namespace bgfx
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{
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static bx::CrtAllocator s_allocator;
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bx::AllocatorI* g_allocator = &s_allocator;
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struct TinyStlAllocator
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{
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static void* static_allocate(size_t _bytes);
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static void static_deallocate(void* _ptr, size_t /*_bytes*/);
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};
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void* TinyStlAllocator::static_allocate(size_t _bytes)
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{
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return BX_ALLOC(g_allocator, _bytes);
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}
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void TinyStlAllocator::static_deallocate(void* _ptr, size_t /*_bytes*/)
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{
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if (NULL != _ptr)
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{
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BX_FREE(g_allocator, _ptr);
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}
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}
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} // namespace bgfx
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#define TINYSTL_ALLOCATOR bgfx::TinyStlAllocator
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#include <tinystl/allocator.h>
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#include <tinystl/string.h>
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#include <tinystl/unordered_map.h>
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#include <tinystl/vector.h>
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namespace stl = tinystl;
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#include "../../src/shader_spirv.h"
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namespace glslang
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{
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void GlslangToSpv(const glslang::TIntermediate& _intermediate, std::vector<uint32_t>& _spirv);
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} // namespace glslang
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namespace bgfx { namespace spirv
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{
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const TBuiltInResource resourceLimits =
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{
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32, // MaxLights
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6, // MaxClipPlanes
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32, // MaxTextureUnits
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32, // MaxTextureCoords
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64, // MaxVertexAttribs
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4096, // MaxVertexUniformComponents
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64, // MaxVaryingFloats
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32, // MaxVertexTextureImageUnits
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80, // MaxCombinedTextureImageUnits
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32, // MaxTextureImageUnits
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4096, // MaxFragmentUniformComponents
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32, // MaxDrawBuffers
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128, // MaxVertexUniformVectors
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8, // MaxVaryingVectors
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16, // MaxFragmentUniformVectors
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16, // MaxVertexOutputVectors
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15, // MaxFragmentInputVectors
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-8, // MinProgramTexelOffset
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7, // MaxProgramTexelOffset
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8, // MaxClipDistances
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65535, // MaxComputeWorkGroupCountX
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65535, // MaxComputeWorkGroupCountY
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65535, // MaxComputeWorkGroupCountZ
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1024, // MaxComputeWorkGroupSizeX
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1024, // MaxComputeWorkGroupSizeY
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64, // MaxComputeWorkGroupSizeZ
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1024, // MaxComputeUniformComponents
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16, // MaxComputeTextureImageUnits
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8, // MaxComputeImageUniforms
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8, // MaxComputeAtomicCounters
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1, // MaxComputeAtomicCounterBuffers
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60, // MaxVaryingComponents
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64, // MaxVertexOutputComponents
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64, // MaxGeometryInputComponents
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128, // MaxGeometryOutputComponents
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128, // MaxFragmentInputComponents
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8, // MaxImageUnits
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8, // MaxCombinedImageUnitsAndFragmentOutputs
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8, // MaxCombinedShaderOutputResources
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0, // MaxImageSamples
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0, // MaxVertexImageUniforms
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0, // MaxTessControlImageUniforms
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0, // MaxTessEvaluationImageUniforms
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0, // MaxGeometryImageUniforms
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8, // MaxFragmentImageUniforms
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8, // MaxCombinedImageUniforms
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16, // MaxGeometryTextureImageUnits
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256, // MaxGeometryOutputVertices
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1024, // MaxGeometryTotalOutputComponents
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1024, // MaxGeometryUniformComponents
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64, // MaxGeometryVaryingComponents
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128, // MaxTessControlInputComponents
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128, // MaxTessControlOutputComponents
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16, // MaxTessControlTextureImageUnits
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1024, // MaxTessControlUniformComponents
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4096, // MaxTessControlTotalOutputComponents
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128, // MaxTessEvaluationInputComponents
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128, // MaxTessEvaluationOutputComponents
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16, // MaxTessEvaluationTextureImageUnits
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1024, // MaxTessEvaluationUniformComponents
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120, // MaxTessPatchComponents
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32, // MaxPatchVertices
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64, // MaxTessGenLevel
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16, // MaxViewports
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0, // MaxVertexAtomicCounters
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0, // MaxTessControlAtomicCounters
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0, // MaxTessEvaluationAtomicCounters
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0, // MaxGeometryAtomicCounters
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8, // MaxFragmentAtomicCounters
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8, // MaxCombinedAtomicCounters
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1, // MaxAtomicCounterBindings
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0, // MaxVertexAtomicCounterBuffers
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0, // MaxTessControlAtomicCounterBuffers
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0, // MaxTessEvaluationAtomicCounterBuffers
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0, // MaxGeometryAtomicCounterBuffers
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1, // MaxFragmentAtomicCounterBuffers
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1, // MaxCombinedAtomicCounterBuffers
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16384, // MaxAtomicCounterBufferSize
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4, // MaxTransformFeedbackBuffers
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64, // MaxTransformFeedbackInterleavedComponents
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8, // MaxCullDistances
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8, // MaxCombinedClipAndCullDistances
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4, // MaxSamples
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{ // limits
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1, // nonInductiveForLoops
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1, // whileLoops
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1, // doWhileLoops
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1, // generalUniformIndexing
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1, // generalAttributeMatrixVectorIndexing
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1, // generalVaryingIndexing
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1, // generalSamplerIndexing
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1, // generalVariableIndexing
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1, // generalConstantMatrixVectorIndexing
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},
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};
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bool printAsm(uint32_t _offset, const SpvInstruction& _instruction, void* _userData)
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{
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BX_UNUSED(_userData);
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char temp[512];
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toString(temp, sizeof(temp), _instruction);
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BX_TRACE("%5d: %s", _offset, temp);
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return true;
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}
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struct SpvReflection
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{
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struct TypeId
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{
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enum Enum
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{
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Void,
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Bool,
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Int32,
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Int64,
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Uint32,
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Uint64,
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Float,
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Double,
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Vector,
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Matrix,
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Count
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};
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TypeId()
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: baseType(Enum::Count)
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, type(Enum::Count)
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{
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}
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Enum baseType;
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Enum type;
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uint32_t numComponents;
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stl::string toString()
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{
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stl::string result;
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switch (type)
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{
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case Float:
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result.append("float");
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break;
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case Vector:
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bx::stringPrintf(result, "vec%d"
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, numComponents
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);
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break;
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case Matrix:
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bx::stringPrintf(result, "mat%d"
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, numComponents
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);
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default:
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break;
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}
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return result;
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}
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};
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struct Id
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{
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struct Variable
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{
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Variable()
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: decoration(SpvDecoration::Count)
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, builtin(SpvBuiltin::Count)
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, storageClass(SpvStorageClass::Count)
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, location(UINT32_MAX)
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, offset(UINT32_MAX)
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, type(UINT32_MAX)
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{
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}
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stl::string name;
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SpvDecoration::Enum decoration;
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SpvBuiltin::Enum builtin;
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SpvStorageClass::Enum storageClass;
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uint32_t location;
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uint32_t offset;
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uint32_t type;
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};
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typedef stl::vector<Variable> MemberArray;
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Variable var;
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MemberArray members;
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};
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typedef stl::unordered_map<uint32_t, TypeId> TypeIdMap;
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typedef stl::unordered_map<uint32_t, Id> IdMap;
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TypeIdMap typeIdMap;
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IdMap idMap;
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stl::string getTypeName(uint32_t _typeId)
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{
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return getTypeId(_typeId).toString();
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}
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Id& getId(uint32_t _id)
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{
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IdMap::iterator it = idMap.find(_id);
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if (it == idMap.end() )
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{
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Id id;
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stl::pair<IdMap::iterator, bool> result = idMap.insert(stl::make_pair(_id, id) );
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it = result.first;
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}
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return it->second;
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}
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Id::Variable& get(uint32_t _id, uint32_t _idx)
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{
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Id& id = getId(_id);
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id.members.resize(bx::uint32_max(_idx+1, uint32_t(id.members.size() ) ) );
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return id.members[_idx];
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}
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TypeId& getTypeId(uint32_t _id)
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{
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TypeIdMap::iterator it = typeIdMap.find(_id);
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if (it == typeIdMap.end() )
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{
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TypeId id;
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stl::pair<TypeIdMap::iterator, bool> result = typeIdMap.insert(stl::make_pair(_id, id) );
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it = result.first;
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}
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return it->second;
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}
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void update(uint32_t _id, const stl::string& _name)
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{
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getId(_id).var.name = _name;
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}
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BX_NO_INLINE void update(Id::Variable& _variable, SpvDecoration::Enum _decoration, uint32_t _literal)
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{
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_variable.decoration = _decoration;
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switch (_decoration)
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{
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case SpvDecoration::Location:
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_variable.location = _literal;
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break;
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case SpvDecoration::Offset:
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_variable.offset = _literal;
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break;
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case SpvDecoration::BuiltIn:
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_variable.builtin = SpvBuiltin::Enum(_literal);
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break;
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default:
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break;
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}
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}
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BX_NO_INLINE void update(Id::Variable& _variable, uint32_t _type, SpvStorageClass::Enum _storageClass)
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{
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_variable.type = _type;
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_variable.storageClass = _storageClass;
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}
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void update(uint32_t _id, SpvDecoration::Enum _decoration, uint32_t _literal)
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{
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update(getId(_id).var, _decoration, _literal);
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}
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void update(uint32_t _id, uint32_t _type, SpvStorageClass::Enum _storageClass)
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{
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update(getId(_id).var, _type, _storageClass);
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}
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void update(uint32_t _id, uint32_t _idx, const stl::string& _name)
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{
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Id::Variable& var = get(_id, _idx);
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var.name = _name;
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}
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BX_NO_INLINE void update(uint32_t _id, uint32_t _idx, SpvDecoration::Enum _decoration, uint32_t _literal)
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{
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update(get(_id, _idx), _decoration, _literal);
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}
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void update(uint32_t _id, TypeId::Enum _type)
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{
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TypeId& type = getTypeId(_id);
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type.type = _type;
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}
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void update(uint32_t _id, TypeId::Enum _type, uint32_t _baseTypeId, uint32_t _numComonents)
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{
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TypeId& type = getTypeId(_id);
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type.type = _type;
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type.baseType = getTypeId(_baseTypeId).type;
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type.numComponents = _numComonents;
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}
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};
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bool spvParse(uint32_t _offset, const SpvInstruction& _instruction, void* _userData)
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{
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BX_UNUSED(_offset);
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SpvReflection* spv = (SpvReflection*)_userData;
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switch (_instruction.opcode)
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{
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case SpvOpcode::Name:
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spv->update(_instruction.result
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, _instruction.operand[0].literalString
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);
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break;
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case SpvOpcode::Decorate:
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spv->update(_instruction.operand[0].data
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, SpvDecoration::Enum(_instruction.operand[1].data)
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, _instruction.operand[2].data
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);
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break;
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case SpvOpcode::MemberName:
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spv->update(_instruction.result
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, _instruction.operand[0].data
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, _instruction.operand[1].literalString
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);
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break;
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case SpvOpcode::MemberDecorate:
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spv->update(_instruction.operand[0].data
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, _instruction.operand[1].data
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, SpvDecoration::Enum(_instruction.operand[2].data)
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, _instruction.operand[3].data
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);
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break;
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case SpvOpcode::Variable:
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spv->update(_instruction.result
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, _instruction.type
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, SpvStorageClass::Enum(_instruction.operand[0].data)
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);
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break;
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case SpvOpcode::TypeVoid:
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spv->update(_instruction.result, SpvReflection::TypeId::Void);
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break;
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case SpvOpcode::TypeBool:
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spv->update(_instruction.result, SpvReflection::TypeId::Bool);
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break;
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case SpvOpcode::TypeInt:
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spv->update(_instruction.result
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, 32 == _instruction.operand[0].data
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? 0 == _instruction.operand[1].data
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? SpvReflection::TypeId::Uint32
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: SpvReflection::TypeId::Int32
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: 0 == _instruction.operand[1].data
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? SpvReflection::TypeId::Uint64
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: SpvReflection::TypeId::Int64
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);
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break;
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case SpvOpcode::TypeFloat:
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spv->update(_instruction.result
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, 32 == _instruction.operand[0].data
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? SpvReflection::TypeId::Float
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: SpvReflection::TypeId::Double
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);
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break;
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case SpvOpcode::TypeVector:
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spv->update(_instruction.result
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, SpvReflection::TypeId::Vector
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, _instruction.operand[0].data
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, _instruction.operand[1].data
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);
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break;
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case SpvOpcode::TypeMatrix:
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spv->update(_instruction.result
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, SpvReflection::TypeId::Matrix
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, _instruction.operand[0].data
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, _instruction.operand[1].data
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);
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break;
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case SpvOpcode::TypeImage:
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case SpvOpcode::TypeSampler:
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case SpvOpcode::TypeSampledImage:
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break;
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case SpvOpcode::TypeStruct:
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for (uint32_t ii = 0, num = _instruction.numOperands; ii < num; ++ii)
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{
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SpvReflection::Id::Variable& var = spv->get(_instruction.result, ii);
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var.type = _instruction.operand[ii].data;
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}
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break;
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default:
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break;
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}
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return true;
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}
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void disassemble(bx::WriterI* _writer, bx::ReaderSeekerI* _reader, bx::Error* _err)
|
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{
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BX_UNUSED(_writer);
|
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uint32_t magic;
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bx::peek(_reader, magic);
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SpvReflection spvx;
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if (magic == SPV_CHUNK_HEADER)
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{
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SpirV spirv;
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read(_reader, spirv, _err);
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parse(spirv.shader, spvParse, &spvx, _err);
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for (SpvReflection::IdMap::const_iterator it = spvx.idMap.begin(), itEnd = spvx.idMap.end(); it != itEnd; ++it)
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{
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const SpvReflection::Id& id = it->second;
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uint32_t num = uint32_t(id.members.size() );
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if (0 < num
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&& 0 != strcmp(id.var.name.c_str(), "gl_PerVertex") )
|
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{
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printf("%3d: %s %d %s\n"
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, it->first
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, id.var.name.c_str()
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, id.var.location
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, getName(id.var.storageClass)
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);
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printf("{\n");
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for (uint32_t ii = 0; ii < num; ++ii)
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{
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const SpvReflection::Id::Variable& var = id.members[ii];
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printf("\t\t%s %s %d %s\n"
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, spvx.getTypeName(var.type).c_str()
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, var.name.c_str()
|
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, var.offset
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, getName(var.storageClass)
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);
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}
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printf("}\n");
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}
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}
|
|
|
|
}
|
|
}
|
|
|
|
struct DebugOutputWriter : public bx::WriterI
|
|
{
|
|
virtual int32_t write(const void* _data, int32_t _size, bx::Error*) BX_OVERRIDE
|
|
{
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char* out = (char*)alloca(_size + 1);
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memcpy(out, _data, _size);
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out[_size] = '\0';
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printf("%s", out);
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return _size;
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}
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};
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|
|
static EShLanguage getLang(char _p)
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|
{
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|
switch (_p)
|
|
{
|
|
case 'c': return EShLangCompute;
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case 'f': return EShLangFragment;
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default: break;
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}
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|
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return EShLangVertex;
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|
}
|
|
|
|
// static void printError(spv_message_level_t, const char*, const spv_position_t&, const char* _message)
|
|
// {
|
|
// fprintf(stderr, "%s\n", _message);
|
|
// }
|
|
|
|
static bool compile(bx::CommandLine& _cmdLine, uint32_t _version, const std::string& _code, bx::WriterI* _writer)
|
|
{
|
|
BX_UNUSED(_cmdLine, _version, _code, _writer);
|
|
|
|
const char* profile = _cmdLine.findOption('p', "profile");
|
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if (NULL == profile)
|
|
{
|
|
fprintf(stderr, "Error: Shader profile must be specified.\n");
|
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return false;
|
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}
|
|
|
|
glslang::InitializeProcess();
|
|
|
|
glslang::TProgram* program = new glslang::TProgram;
|
|
|
|
EShLanguage stage = getLang(profile[0]);
|
|
glslang::TShader* shader = new glslang::TShader(stage);
|
|
|
|
EShMessages messages = EShMessages(0
|
|
| EShMsgDefault
|
|
| EShMsgReadHlsl
|
|
| EShMsgVulkanRules
|
|
| EShMsgSpvRules
|
|
);
|
|
|
|
const char* shaderStrings[] = { _code.c_str() };
|
|
const char* shaderNames[] = { "" };
|
|
|
|
shader->setStringsWithLengthsAndNames(
|
|
shaderStrings
|
|
, NULL
|
|
, shaderNames
|
|
, BX_COUNTOF(shaderNames)
|
|
);
|
|
bool compiled = shader->parse(&resourceLimits
|
|
, 110
|
|
, false
|
|
, messages
|
|
);
|
|
bool linked = false;
|
|
bool validated = true;
|
|
bool optimized = true;
|
|
|
|
if (!compiled)
|
|
{
|
|
const char* log = shader->getInfoLog();
|
|
if (NULL != log)
|
|
{
|
|
int32_t source = 0;
|
|
int32_t line = 0;
|
|
int32_t column = 0;
|
|
int32_t start = 0;
|
|
int32_t end = INT32_MAX;
|
|
|
|
const char* err = strstr(log, "ERROR:");
|
|
|
|
bool found = false;
|
|
|
|
if (NULL != err)
|
|
{
|
|
found = 2 == sscanf(err, "ERROR: %u:%u: '", &source, &line);
|
|
if (found)
|
|
{
|
|
++line;
|
|
}
|
|
}
|
|
|
|
if (found)
|
|
{
|
|
start = bx::uint32_imax(1, line-10);
|
|
end = start + 20;
|
|
}
|
|
|
|
printCode(_code.c_str(), line, start, end, column);
|
|
|
|
fprintf(stderr, "%s\n", log);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
program->addShader(shader);
|
|
linked = true
|
|
&& program->link(messages)
|
|
&& program->mapIO()
|
|
;
|
|
|
|
if (!linked)
|
|
{
|
|
const char* log = program->getInfoLog();
|
|
if (NULL != log)
|
|
{
|
|
fprintf(stderr, "%s\n", log);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// program->buildReflection();
|
|
// fprintf(stderr, "attributes %d, uniforms %d\n"
|
|
// , program->getNumLiveAttributes()
|
|
// , program->getNumLiveUniformVariables()
|
|
// );
|
|
// program->dumpReflection();
|
|
|
|
glslang::TIntermediate* intermediate = program->getIntermediate(stage);
|
|
std::vector<uint32_t> spirv;
|
|
glslang::GlslangToSpv(*intermediate, spirv);
|
|
spv::spirvbin_t spvBin;
|
|
spvBin.remap(
|
|
spirv
|
|
, 0
|
|
| spv::spirvbin_t::DCE_ALL
|
|
| spv::spirvbin_t::OPT_ALL
|
|
| spv::spirvbin_t::MAP_ALL
|
|
// | spv::spirvbin_t::STRIP
|
|
);
|
|
|
|
bx::Error err;
|
|
DebugOutputWriter writer;
|
|
bx::MemoryReader reader(spirv.data(), uint32_t(spirv.size()*4) );
|
|
disassemble(&writer, &reader, &err);
|
|
|
|
#if 0
|
|
spvtools::SpirvTools tools(SPV_ENV_VULKAN_1_0);
|
|
tools.SetMessageConsumer(printError);
|
|
validated = tools.Validate(spirv);
|
|
|
|
if (!validated)
|
|
{
|
|
std::string out;
|
|
tools.Disassemble(spirv, &out);
|
|
printf("%s\n", out.c_str());
|
|
}
|
|
|
|
if (validated)
|
|
{
|
|
spvtools::Optimizer optm(SPV_ENV_VULKAN_1_0);
|
|
optm.SetMessageConsumer(printError);
|
|
optm
|
|
.RegisterPass(spvtools::CreateStripDebugInfoPass() )
|
|
// .RegisterPass(spvtools::CreateSetSpecConstantDefaultValuePass({ {1, "42" } }) )
|
|
.RegisterPass(spvtools::CreateFreezeSpecConstantValuePass() )
|
|
.RegisterPass(spvtools::CreateFoldSpecConstantOpAndCompositePass() )
|
|
.RegisterPass(spvtools::CreateEliminateDeadConstantPass() )
|
|
.RegisterPass(spvtools::CreateUnifyConstantPass() )
|
|
;
|
|
optimized = optm.Run(spirv.data(), spirv.size(), &spirv);
|
|
}
|
|
#endif // 0
|
|
|
|
if (optimized)
|
|
{
|
|
uint16_t shaderSize = (uint16_t)spirv.size()*sizeof(uint32_t);
|
|
bx::write(_writer, shaderSize);
|
|
bx::write(_writer, spirv.data(), shaderSize);
|
|
uint8_t nul = 0;
|
|
bx::write(_writer, nul);
|
|
}
|
|
}
|
|
}
|
|
|
|
delete program;
|
|
delete shader;
|
|
|
|
glslang::FinalizeProcess();
|
|
|
|
return compiled && linked && validated && optimized;
|
|
}
|
|
|
|
} // namespace spirv
|
|
|
|
bool compileSPIRVShader(bx::CommandLine& _cmdLine, uint32_t _version, const std::string& _code, bx::WriterI* _writer)
|
|
{
|
|
return spirv::compile(_cmdLine, _version, _code, _writer);
|
|
}
|
|
|
|
} // namespace bgfx
|