56ad576dcd
* Add Metal Shading Language version options to shaderc. Reference version options from: https://developer.apple.com/documentation/metal/mtllanguageversion?language=objc Add configuration options for MSL compiler based on MSL version and Platform Configure MSL->SPIR-V version configuration based on when ray tracing types become available Set default metal compiler option to be metal 1.2, which is the default version assigned in the current SPIRV-Cross being used * Add Metal Shading Language version options to shaderc. Reference version options from: https://developer.apple.com/documentation/metal/mtllanguageversion?language=objc Add configuration options for MSL compiler based on MSL version and Platform Configure MSL->SPIR-V version configuration based on when ray tracing types become available Set default metal compiler option to be metal 1.2, which is the default version assigned in the current SPIRV-Cross being used * Group ios and osx platform code paths Reduce the size of temp buffer used in writing the MSL preprocessor define Fix a compiler warning about size_t to int32_t truncation Adjust whitespace in usage text * Remove indented scope left-over from branch condition removal * Remove some testing code * Adjust whitespace for function arguments * Replace BX_ASSERT with bx::write to message handler in spirv generation
902 lines
27 KiB
C++
902 lines
27 KiB
C++
/*
|
||
* Copyright 2011-2024 Branimir Karadzic. All rights reserved.
|
||
* License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE
|
||
*/
|
||
|
||
#include "shaderc.h"
|
||
|
||
#include <iostream> // std::cout
|
||
|
||
BX_PRAGMA_DIAGNOSTIC_PUSH()
|
||
BX_PRAGMA_DIAGNOSTIC_IGNORED_MSVC(4100) // error C4100: 'inclusionDepth' : unreferenced formal parameter
|
||
BX_PRAGMA_DIAGNOSTIC_IGNORED_MSVC(4265) // error C4265: 'spv::spirvbin_t': class has virtual functions, but destructor is not virtual
|
||
BX_PRAGMA_DIAGNOSTIC_IGNORED_CLANG_GCC("-Wattributes") // warning: attribute ignored
|
||
BX_PRAGMA_DIAGNOSTIC_IGNORED_CLANG_GCC("-Wdeprecated-declarations") // warning: ‘MSLVertexAttr’ is deprecated
|
||
BX_PRAGMA_DIAGNOSTIC_IGNORED_CLANG_GCC("-Wtype-limits") // warning: comparison of unsigned expression in ‘< 0’ is always false
|
||
BX_PRAGMA_DIAGNOSTIC_IGNORED_CLANG_GCC("-Wshadow") // warning: declaration of 'userData' shadows a member of 'glslang::TShader::Includer::IncludeResult'
|
||
#define ENABLE_OPT 1
|
||
#include <ShaderLang.h>
|
||
#include <ResourceLimits.h>
|
||
#include <SPIRV/SPVRemapper.h>
|
||
#include <SPIRV/GlslangToSpv.h>
|
||
#include <SPIRV/SpvTools.h>
|
||
#define SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS
|
||
#include <spirv_msl.hpp>
|
||
#include <spirv_reflect.hpp>
|
||
#include <spirv-tools/optimizer.hpp>
|
||
BX_PRAGMA_DIAGNOSTIC_POP()
|
||
|
||
namespace bgfx
|
||
{
|
||
static bx::DefaultAllocator s_allocator;
|
||
bx::AllocatorI* g_allocator = &s_allocator;
|
||
|
||
struct TinyStlAllocator
|
||
{
|
||
static void* static_allocate(size_t _bytes);
|
||
static void static_deallocate(void* _ptr, size_t /*_bytes*/);
|
||
};
|
||
|
||
void* TinyStlAllocator::static_allocate(size_t _bytes)
|
||
{
|
||
return bx::alloc(g_allocator, _bytes);
|
||
}
|
||
|
||
void TinyStlAllocator::static_deallocate(void* _ptr, size_t /*_bytes*/)
|
||
{
|
||
if (NULL != _ptr)
|
||
{
|
||
bx::free(g_allocator, _ptr);
|
||
}
|
||
}
|
||
} // namespace bgfx
|
||
|
||
#define TINYSTL_ALLOCATOR bgfx::TinyStlAllocator
|
||
#include <tinystl/allocator.h>
|
||
#include <tinystl/string.h>
|
||
#include <tinystl/unordered_map.h>
|
||
#include <tinystl/vector.h>
|
||
namespace stl = tinystl;
|
||
|
||
#include "../../src/shader.h"
|
||
#include "../../src/shader_spirv.h"
|
||
#include "../../3rdparty/khronos/vulkan-local/vulkan.h"
|
||
|
||
namespace bgfx { namespace spirv
|
||
{
|
||
const TBuiltInResource resourceLimits =
|
||
{
|
||
32, // MaxLights
|
||
6, // MaxClipPlanes
|
||
32, // MaxTextureUnits
|
||
32, // MaxTextureCoords
|
||
64, // MaxVertexAttribs
|
||
4096, // MaxVertexUniformComponents
|
||
64, // MaxVaryingFloats
|
||
32, // MaxVertexTextureImageUnits
|
||
80, // MaxCombinedTextureImageUnits
|
||
32, // MaxTextureImageUnits
|
||
4096, // MaxFragmentUniformComponents
|
||
32, // MaxDrawBuffers
|
||
128, // MaxVertexUniformVectors
|
||
8, // MaxVaryingVectors
|
||
16, // MaxFragmentUniformVectors
|
||
16, // MaxVertexOutputVectors
|
||
15, // MaxFragmentInputVectors
|
||
-8, // MinProgramTexelOffset
|
||
7, // MaxProgramTexelOffset
|
||
8, // MaxClipDistances
|
||
65535, // MaxComputeWorkGroupCountX
|
||
65535, // MaxComputeWorkGroupCountY
|
||
65535, // MaxComputeWorkGroupCountZ
|
||
1024, // MaxComputeWorkGroupSizeX
|
||
1024, // MaxComputeWorkGroupSizeY
|
||
64, // MaxComputeWorkGroupSizeZ
|
||
1024, // MaxComputeUniformComponents
|
||
16, // MaxComputeTextureImageUnits
|
||
8, // MaxComputeImageUniforms
|
||
8, // MaxComputeAtomicCounters
|
||
1, // MaxComputeAtomicCounterBuffers
|
||
60, // MaxVaryingComponents
|
||
64, // MaxVertexOutputComponents
|
||
64, // MaxGeometryInputComponents
|
||
128, // MaxGeometryOutputComponents
|
||
128, // MaxFragmentInputComponents
|
||
8, // MaxImageUnits
|
||
8, // MaxCombinedImageUnitsAndFragmentOutputs
|
||
8, // MaxCombinedShaderOutputResources
|
||
0, // MaxImageSamples
|
||
0, // MaxVertexImageUniforms
|
||
0, // MaxTessControlImageUniforms
|
||
0, // MaxTessEvaluationImageUniforms
|
||
0, // MaxGeometryImageUniforms
|
||
8, // MaxFragmentImageUniforms
|
||
8, // MaxCombinedImageUniforms
|
||
16, // MaxGeometryTextureImageUnits
|
||
256, // MaxGeometryOutputVertices
|
||
1024, // MaxGeometryTotalOutputComponents
|
||
1024, // MaxGeometryUniformComponents
|
||
64, // MaxGeometryVaryingComponents
|
||
128, // MaxTessControlInputComponents
|
||
128, // MaxTessControlOutputComponents
|
||
16, // MaxTessControlTextureImageUnits
|
||
1024, // MaxTessControlUniformComponents
|
||
4096, // MaxTessControlTotalOutputComponents
|
||
128, // MaxTessEvaluationInputComponents
|
||
128, // MaxTessEvaluationOutputComponents
|
||
16, // MaxTessEvaluationTextureImageUnits
|
||
1024, // MaxTessEvaluationUniformComponents
|
||
120, // MaxTessPatchComponents
|
||
32, // MaxPatchVertices
|
||
64, // MaxTessGenLevel
|
||
16, // MaxViewports
|
||
0, // MaxVertexAtomicCounters
|
||
0, // MaxTessControlAtomicCounters
|
||
0, // MaxTessEvaluationAtomicCounters
|
||
0, // MaxGeometryAtomicCounters
|
||
8, // MaxFragmentAtomicCounters
|
||
8, // MaxCombinedAtomicCounters
|
||
1, // MaxAtomicCounterBindings
|
||
0, // MaxVertexAtomicCounterBuffers
|
||
0, // MaxTessControlAtomicCounterBuffers
|
||
0, // MaxTessEvaluationAtomicCounterBuffers
|
||
0, // MaxGeometryAtomicCounterBuffers
|
||
1, // MaxFragmentAtomicCounterBuffers
|
||
1, // MaxCombinedAtomicCounterBuffers
|
||
16384, // MaxAtomicCounterBufferSize
|
||
4, // MaxTransformFeedbackBuffers
|
||
64, // MaxTransformFeedbackInterleavedComponents
|
||
8, // MaxCullDistances
|
||
8, // MaxCombinedClipAndCullDistances
|
||
4, // MaxSamples
|
||
0, // maxMeshOutputVerticesNV
|
||
0, // maxMeshOutputPrimitivesNV
|
||
0, // maxMeshWorkGroupSizeX_NV
|
||
0, // maxMeshWorkGroupSizeY_NV
|
||
0, // maxMeshWorkGroupSizeZ_NV
|
||
0, // maxTaskWorkGroupSizeX_NV
|
||
0, // maxTaskWorkGroupSizeY_NV
|
||
0, // maxTaskWorkGroupSizeZ_NV
|
||
0, // maxMeshViewCountNV
|
||
0, // maxMeshOutputVerticesEXT
|
||
0, // maxMeshOutputPrimitivesEXT
|
||
0, // maxMeshWorkGroupSizeX_EXT
|
||
0, // maxMeshWorkGroupSizeY_EXT
|
||
0, // maxMeshWorkGroupSizeZ_EXT
|
||
0, // maxTaskWorkGroupSizeX_EXT
|
||
0, // maxTaskWorkGroupSizeY_EXT
|
||
0, // maxTaskWorkGroupSizeZ_EXT
|
||
0, // maxMeshViewCountEXT
|
||
0, // maxDualSourceDrawBuffersEXT
|
||
|
||
{ // limits
|
||
true, // nonInductiveForLoops
|
||
true, // whileLoops
|
||
true, // doWhileLoops
|
||
true, // generalUniformIndexing
|
||
true, // generalAttributeMatrixVectorIndexing
|
||
true, // generalVaryingIndexing
|
||
true, // generalSamplerIndexing
|
||
true, // generalVariableIndexing
|
||
true, // generalConstantMatrixVectorIndexing
|
||
},
|
||
};
|
||
|
||
bgfx::TextureComponentType::Enum SpirvCrossBaseTypeToFormatType(spirv_cross::SPIRType::BaseType spirvBaseType, bool depth)
|
||
{
|
||
if (depth)
|
||
return bgfx::TextureComponentType::Depth;
|
||
|
||
switch (spirvBaseType)
|
||
{
|
||
case spirv_cross::SPIRType::Float:
|
||
return bgfx::TextureComponentType::Float;
|
||
case spirv_cross::SPIRType::Int:
|
||
return bgfx::TextureComponentType::Int;
|
||
case spirv_cross::SPIRType::UInt:
|
||
return bgfx::TextureComponentType::Uint;
|
||
default:
|
||
return bgfx::TextureComponentType::Float;
|
||
}
|
||
}
|
||
|
||
bgfx::TextureDimension::Enum SpirvDimToTextureViewDimension(spv::Dim _dim, bool _arrayed)
|
||
{
|
||
switch (_dim)
|
||
{
|
||
case spv::Dim::Dim1D:
|
||
return bgfx::TextureDimension::Dimension1D;
|
||
case spv::Dim::Dim2D:
|
||
return _arrayed
|
||
? bgfx::TextureDimension::Dimension2DArray
|
||
: bgfx::TextureDimension::Dimension2D
|
||
;
|
||
case spv::Dim::Dim3D:
|
||
return bgfx::TextureDimension::Dimension3D;
|
||
case spv::Dim::DimCube:
|
||
return _arrayed
|
||
? bgfx::TextureDimension::DimensionCubeArray
|
||
: bgfx::TextureDimension::DimensionCube
|
||
;
|
||
default:
|
||
BX_ASSERT(false, "Unknown texture dimension %d", _dim);
|
||
return bgfx::TextureDimension::Dimension2D;
|
||
}
|
||
}
|
||
|
||
static bgfx::TextureFormat::Enum s_textureFormats[] =
|
||
{
|
||
bgfx::TextureFormat::Unknown, // spv::ImageFormatUnknown = 0
|
||
bgfx::TextureFormat::RGBA32F, // spv::ImageFormatRgba32f = 1
|
||
bgfx::TextureFormat::RGBA16F, // spv::ImageFormatRgba16f = 2
|
||
bgfx::TextureFormat::R32F, // spv::ImageFormatR32f = 3
|
||
bgfx::TextureFormat::RGBA8, // spv::ImageFormatRgba8 = 4
|
||
bgfx::TextureFormat::RGBA8S, // spv::ImageFormatRgba8Snorm = 5
|
||
bgfx::TextureFormat::RG32F, // spv::ImageFormatRg32f = 6
|
||
bgfx::TextureFormat::RG16F, // spv::ImageFormatRg16f = 7
|
||
bgfx::TextureFormat::RG11B10F, // spv::ImageFormatR11fG11fB10f = 8
|
||
bgfx::TextureFormat::R16F, // spv::ImageFormatR16f = 9
|
||
bgfx::TextureFormat::RGBA16, // spv::ImageFormatRgba16 = 10
|
||
bgfx::TextureFormat::RGB10A2, // spv::ImageFormatRgb10A2 = 11
|
||
bgfx::TextureFormat::RG16, // spv::ImageFormatRg16 = 12
|
||
bgfx::TextureFormat::RG8, // spv::ImageFormatRg8 = 13
|
||
bgfx::TextureFormat::R16, // spv::ImageFormatR16 = 14
|
||
bgfx::TextureFormat::R8, // spv::ImageFormatR8 = 15
|
||
bgfx::TextureFormat::RGBA16S, // spv::ImageFormatRgba16Snorm = 16
|
||
bgfx::TextureFormat::RG16S, // spv::ImageFormatRg16Snorm = 17
|
||
bgfx::TextureFormat::RG8S, // spv::ImageFormatRg8Snorm = 18
|
||
bgfx::TextureFormat::R16S, // spv::ImageFormatR16Snorm = 19
|
||
bgfx::TextureFormat::R8S, // spv::ImageFormatR8Snorm = 20
|
||
bgfx::TextureFormat::RGBA32I, // spv::ImageFormatRgba32i = 21
|
||
bgfx::TextureFormat::RGBA16I, // spv::ImageFormatRgba16i = 22
|
||
bgfx::TextureFormat::RGBA8I, // spv::ImageFormatRgba8i = 23
|
||
bgfx::TextureFormat::R32I, // spv::ImageFormatR32i = 24
|
||
bgfx::TextureFormat::RG32I, // spv::ImageFormatRg32i = 25
|
||
bgfx::TextureFormat::RG16I, // spv::ImageFormatRg16i = 26
|
||
bgfx::TextureFormat::RG8I, // spv::ImageFormatRg8i = 27
|
||
bgfx::TextureFormat::R16I, // spv::ImageFormatR16i = 28
|
||
bgfx::TextureFormat::R8I, // spv::ImageFormatR8i = 29
|
||
bgfx::TextureFormat::RGBA32U, // spv::ImageFormatRgba32ui = 30
|
||
bgfx::TextureFormat::RGBA16U, // spv::ImageFormatRgba16ui = 31
|
||
bgfx::TextureFormat::RGBA8U, // spv::ImageFormatRgba8ui = 32
|
||
bgfx::TextureFormat::R32U, // spv::ImageFormatR32ui = 33
|
||
bgfx::TextureFormat::Unknown, // spv::ImageFormatRgb10a2ui = 34
|
||
bgfx::TextureFormat::RG32U, // spv::ImageFormatRg32ui = 35
|
||
bgfx::TextureFormat::RG16U, // spv::ImageFormatRg16ui = 36
|
||
bgfx::TextureFormat::RG8U, // spv::ImageFormatRg8ui = 37
|
||
bgfx::TextureFormat::R16U, // spv::ImageFormatR16ui = 38
|
||
bgfx::TextureFormat::R8U, // spv::ImageFormatR8ui = 39
|
||
bgfx::TextureFormat::Unknown, // spv::ImageFormatR64ui = 40
|
||
bgfx::TextureFormat::Unknown, // spv::ImageFormatR64i = 41
|
||
};
|
||
|
||
static EShLanguage getLang(char _p)
|
||
{
|
||
switch (_p)
|
||
{
|
||
case 'c': return EShLangCompute;
|
||
case 'f': return EShLangFragment;
|
||
case 'v': return EShLangVertex;
|
||
default: return EShLangCount;
|
||
}
|
||
}
|
||
|
||
static const char* s_attribName[] =
|
||
{
|
||
"a_position",
|
||
"a_normal",
|
||
"a_tangent",
|
||
"a_bitangent",
|
||
"a_color0",
|
||
"a_color1",
|
||
"a_color2",
|
||
"a_color3",
|
||
"a_indices",
|
||
"a_weight",
|
||
"a_texcoord0",
|
||
"a_texcoord1",
|
||
"a_texcoord2",
|
||
"a_texcoord3",
|
||
"a_texcoord4",
|
||
"a_texcoord5",
|
||
"a_texcoord6",
|
||
"a_texcoord7",
|
||
};
|
||
BX_STATIC_ASSERT(bgfx::Attrib::Count == BX_COUNTOF(s_attribName) );
|
||
|
||
bgfx::Attrib::Enum toAttribEnum(const bx::StringView& _name)
|
||
{
|
||
for (uint8_t ii = 0; ii < Attrib::Count; ++ii)
|
||
{
|
||
if (0 == bx::strCmp(s_attribName[ii], _name) )
|
||
{
|
||
return bgfx::Attrib::Enum(ii);
|
||
}
|
||
}
|
||
|
||
return bgfx::Attrib::Count;
|
||
}
|
||
|
||
static const char* s_samplerTypes[] =
|
||
{
|
||
"BgfxSampler2D",
|
||
"BgfxISampler2D",
|
||
"BgfxUSampler2D",
|
||
"BgfxSampler2DArray",
|
||
"BgfxSampler2DShadow",
|
||
"BgfxSampler2DArrayShadow",
|
||
"BgfxSampler3D",
|
||
"BgfxISampler3D",
|
||
"BgfxUSampler3D",
|
||
"BgfxSamplerCube",
|
||
"BgfxSamplerCubeShadow",
|
||
"BgfxSampler2DMS",
|
||
};
|
||
|
||
static uint16_t writeUniformArray(bx::WriterI* _shaderWriter, const UniformArray& uniforms, bool isFragmentShader)
|
||
{
|
||
uint16_t size = 0;
|
||
|
||
bx::ErrorAssert err;
|
||
|
||
uint16_t count = uint16_t(uniforms.size());
|
||
bx::write(_shaderWriter, count, &err);
|
||
|
||
uint32_t fragmentBit = isFragmentShader ? kUniformFragmentBit : 0;
|
||
|
||
for (uint16_t ii = 0; ii < count; ++ii)
|
||
{
|
||
const Uniform& un = uniforms[ii];
|
||
|
||
if ( (un.type & ~kUniformMask) > UniformType::End)
|
||
{
|
||
size = bx::max(size, (uint16_t)(un.regIndex + un.regCount*16) );
|
||
}
|
||
|
||
uint8_t nameSize = (uint8_t)un.name.size();
|
||
bx::write(_shaderWriter, nameSize, &err);
|
||
bx::write(_shaderWriter, un.name.c_str(), nameSize, &err);
|
||
bx::write(_shaderWriter, uint8_t(un.type | fragmentBit), &err);
|
||
bx::write(_shaderWriter, un.num, &err);
|
||
bx::write(_shaderWriter, un.regIndex, &err);
|
||
bx::write(_shaderWriter, un.regCount, &err);
|
||
bx::write(_shaderWriter, un.texComponent, &err);
|
||
bx::write(_shaderWriter, un.texDimension, &err);
|
||
bx::write(_shaderWriter, un.texFormat, &err);
|
||
|
||
BX_TRACE("%s, %s, %d, %d, %d"
|
||
, un.name.c_str()
|
||
, getUniformTypeName(UniformType::Enum(un.type & ~kUniformMask))
|
||
, un.num
|
||
, un.regIndex
|
||
, un.regCount
|
||
);
|
||
}
|
||
return size;
|
||
}
|
||
|
||
static spv_target_env getSpirvTargetVersion(uint32_t _version, bx::WriterI* _messageWriter)
|
||
{
|
||
bx::ErrorAssert err;
|
||
|
||
switch (_version)
|
||
{
|
||
case 1010:
|
||
return SPV_ENV_VULKAN_1_0;
|
||
case 1311:
|
||
return SPV_ENV_VULKAN_1_1;
|
||
case 1411:
|
||
return SPV_ENV_VULKAN_1_1_SPIRV_1_4;
|
||
case 1512:
|
||
return SPV_ENV_VULKAN_1_2;
|
||
case 1613:
|
||
return SPV_ENV_VULKAN_1_3;
|
||
default:
|
||
bx::write(_messageWriter, &err, "Warning: Unknown SPIR-V version requested. Returning SPV_ENV_VULKAN_1_0 as default.\n");
|
||
return SPV_ENV_VULKAN_1_0;
|
||
}
|
||
}
|
||
|
||
static glslang::EShTargetClientVersion getGlslangTargetVulkanVersion(uint32_t _version, bx::WriterI* _messageWriter)
|
||
{
|
||
bx::ErrorAssert err;
|
||
|
||
switch (_version)
|
||
{
|
||
case 1010:
|
||
return glslang::EShTargetVulkan_1_0;
|
||
case 1311:
|
||
case 1411:
|
||
return glslang::EShTargetVulkan_1_1;
|
||
case 1512:
|
||
return glslang::EShTargetVulkan_1_2;
|
||
case 1613:
|
||
return glslang::EShTargetVulkan_1_3;
|
||
default:
|
||
bx::write(_messageWriter, &err, "Warning: Unknown SPIR-V version requested. Returning EShTargetVulkan_1_0 as default.\n");
|
||
return glslang::EShTargetVulkan_1_0;
|
||
}
|
||
}
|
||
|
||
static glslang::EShTargetLanguageVersion getGlslangTargetSpirvVersion(uint32_t _version, bx::WriterI* _messageWriter)
|
||
{
|
||
bx::ErrorAssert err;
|
||
|
||
switch (_version)
|
||
{
|
||
case 1010:
|
||
return glslang::EShTargetSpv_1_0;
|
||
case 1311:
|
||
return glslang::EShTargetSpv_1_3;
|
||
case 1411:
|
||
return glslang::EShTargetSpv_1_4;
|
||
case 1512:
|
||
return glslang::EShTargetSpv_1_5;
|
||
case 1613:
|
||
return glslang::EShTargetSpv_1_6;
|
||
default:
|
||
bx::write(_messageWriter, &err, "Warning: Unknown SPIR-V version requested. Returning EShTargetSpv_1_0 as default.\n");
|
||
return glslang::EShTargetSpv_1_0;
|
||
}
|
||
}
|
||
|
||
/// This is the value used to fill out GLSLANG's SpvVersion object.
|
||
/// The required value is that which is defined by GL_KHR_vulkan_glsl, which is defined here:
|
||
/// https://github.com/KhronosGroup/GLSL/blob/master/extensions/khr/GL_KHR_vulkan_glsl.txt
|
||
/// The value is 100.
|
||
constexpr int s_GLSL_VULKAN_CLIENT_VERSION = 100;
|
||
|
||
static bool compile(const Options& _options, uint32_t _version, const std::string& _code, bx::WriterI* _shaderWriter, bx::WriterI* _messageWriter, bool _firstPass)
|
||
{
|
||
BX_UNUSED(_version);
|
||
|
||
bx::ErrorAssert messageErr;
|
||
|
||
glslang::InitializeProcess();
|
||
|
||
EShLanguage stage = getLang(_options.shaderType);
|
||
if (EShLangCount == stage)
|
||
{
|
||
bx::write(_messageWriter, &messageErr, "Error: Unknown shader type '%c'.\n", _options.shaderType);
|
||
return false;
|
||
}
|
||
|
||
glslang::TProgram* program = new glslang::TProgram;
|
||
glslang::TShader* shader = new glslang::TShader(stage);
|
||
|
||
EShMessages messages = EShMessages(0
|
||
| EShMsgDefault
|
||
| EShMsgReadHlsl
|
||
| EShMsgVulkanRules
|
||
| EShMsgSpvRules
|
||
| EShMsgDebugInfo
|
||
);
|
||
|
||
shader->setEntryPoint("main");
|
||
shader->setAutoMapBindings(true);
|
||
shader->setEnvInput(glslang::EShSourceHlsl, stage, glslang::EShClientVulkan, s_GLSL_VULKAN_CLIENT_VERSION);
|
||
shader->setEnvClient(glslang::EShClientVulkan, getGlslangTargetVulkanVersion(_version, _messageWriter));
|
||
shader->setEnvTarget(glslang::EShTargetSpv, getGlslangTargetSpirvVersion(_version, _messageWriter));
|
||
|
||
// Reserve two spots for the stage UBOs
|
||
shader->setShiftBinding(glslang::EResUbo, (stage == EShLanguage::EShLangFragment ? kSpirvFragmentBinding : kSpirvVertexBinding));
|
||
shader->setShiftBinding(glslang::EResTexture, kSpirvBindShift);
|
||
shader->setShiftBinding(glslang::EResSampler, kSpirvBindShift + kSpirvSamplerShift);
|
||
shader->setShiftBinding(glslang::EResSsbo, kSpirvBindShift);
|
||
shader->setShiftBinding(glslang::EResImage, kSpirvBindShift);
|
||
|
||
const char* shaderStrings[] = { _code.c_str() };
|
||
shader->setStrings(
|
||
shaderStrings
|
||
, BX_COUNTOF(shaderStrings)
|
||
);
|
||
bool compiled = shader->parse(&resourceLimits
|
||
, 110
|
||
, false
|
||
, messages
|
||
);
|
||
bool linked = false;
|
||
bool validated = 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;
|
||
|
||
bx::StringView err = bx::strFind(log, "ERROR:");
|
||
|
||
bool found = false;
|
||
|
||
if (!err.isEmpty() )
|
||
{
|
||
found = 2 == sscanf(err.getPtr(), "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);
|
||
|
||
bx::write(_messageWriter, &messageErr, "%s\n", log);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
program->addShader(shader);
|
||
linked = true
|
||
&& program->link(messages)
|
||
&& program->mapIO()
|
||
;
|
||
|
||
if (!linked)
|
||
{
|
||
const char* log = program->getInfoLog();
|
||
if (NULL != log)
|
||
{
|
||
bx::write(_messageWriter, &messageErr, "%s\n", log);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
program->buildReflection();
|
||
|
||
if (_firstPass)
|
||
{
|
||
// first time through, we just find unused uniforms and get rid of them
|
||
std::string output;
|
||
|
||
struct Uniform
|
||
{
|
||
std::string name;
|
||
std::string decl;
|
||
};
|
||
std::vector<Uniform> uniforms;
|
||
|
||
bx::LineReader reader(_code.c_str() );
|
||
while (!reader.isDone() )
|
||
{
|
||
bx::StringView strLine = reader.next();
|
||
|
||
bool moved = false;
|
||
|
||
bx::StringView str = strFind(strLine, "uniform ");
|
||
if (!str.isEmpty() )
|
||
{
|
||
bool found = false;
|
||
bool sampler = false;
|
||
std::string name = "";
|
||
|
||
// add to samplers
|
||
|
||
for (uint32_t ii = 0; ii < BX_COUNTOF(s_samplerTypes); ++ii)
|
||
{
|
||
if (!bx::findIdentifierMatch(strLine, s_samplerTypes[ii]).isEmpty() )
|
||
{
|
||
found = true;
|
||
sampler = true;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (!found)
|
||
{
|
||
for (int32_t ii = 0, num = program->getNumLiveUniformVariables(); ii < num; ++ii)
|
||
{
|
||
// matching lines like: uniform u_name;
|
||
// we want to replace "uniform" with "static" so that it's no longer
|
||
// included in the uniform blob that the application must upload
|
||
// we can't just remove them, because unused functions might still reference
|
||
// them and cause a compile error when they're gone
|
||
if (!bx::findIdentifierMatch(strLine, program->getUniformName(ii) ).isEmpty() )
|
||
{
|
||
found = true;
|
||
name = program->getUniformName(ii);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!found)
|
||
{
|
||
output.append(strLine.getPtr(), str.getPtr() );
|
||
output += "static ";
|
||
output.append(str.getTerm(), strLine.getTerm() );
|
||
output += "\n";
|
||
moved = true;
|
||
}
|
||
else if (!sampler)
|
||
{
|
||
Uniform uniform;
|
||
uniform.name = name;
|
||
uniform.decl = std::string(strLine.getPtr(), strLine.getTerm() );
|
||
uniforms.push_back(uniform);
|
||
moved = true;
|
||
}
|
||
}
|
||
|
||
if (!moved)
|
||
{
|
||
output.append(strLine.getPtr(), strLine.getTerm() );
|
||
output += "\n";
|
||
}
|
||
}
|
||
|
||
std::string uniformBlock;
|
||
uniformBlock += "cbuffer UniformBlock\n";
|
||
uniformBlock += "{\n";
|
||
|
||
for (const Uniform& uniform : uniforms)
|
||
{
|
||
uniformBlock += uniform.decl.substr(7 /* uniform */);
|
||
uniformBlock += "\n";
|
||
}
|
||
|
||
uniformBlock += "};\n";
|
||
|
||
output = uniformBlock + output;
|
||
|
||
// recompile with the unused uniforms converted to statics
|
||
delete program;
|
||
delete shader;
|
||
return compile(_options, _version, output.c_str(), _shaderWriter, _messageWriter, false);
|
||
}
|
||
|
||
UniformArray uniforms;
|
||
|
||
{
|
||
uint16_t count = (uint16_t)program->getNumLiveUniformVariables();
|
||
|
||
for (uint16_t ii = 0; ii < count; ++ii)
|
||
{
|
||
Uniform un;
|
||
un.name = program->getUniformName(ii);
|
||
|
||
if (bx::hasSuffix(un.name.c_str(), ".@data") )
|
||
{
|
||
continue;
|
||
}
|
||
|
||
un.num = uint8_t(program->getUniformArraySize(ii) );
|
||
const uint32_t offset = program->getUniformBufferOffset(ii);
|
||
un.regIndex = uint16_t(offset);
|
||
un.regCount = un.num;
|
||
|
||
switch (program->getUniformType(ii) )
|
||
{
|
||
case 0x1404: // GL_INT:
|
||
un.type = UniformType::Sampler;
|
||
break;
|
||
|
||
case 0x8B52: // GL_FLOAT_VEC4:
|
||
un.type = UniformType::Vec4;
|
||
break;
|
||
|
||
case 0x8B5B: // GL_FLOAT_MAT3:
|
||
un.type = UniformType::Mat3;
|
||
un.regCount *= 3;
|
||
break;
|
||
|
||
case 0x8B5C: // GL_FLOAT_MAT4:
|
||
un.type = UniformType::Mat4;
|
||
un.regCount *= 4;
|
||
break;
|
||
|
||
default:
|
||
continue;
|
||
}
|
||
|
||
uniforms.push_back(un);
|
||
}
|
||
}
|
||
|
||
if (g_verbose)
|
||
{
|
||
program->dumpReflection();
|
||
}
|
||
|
||
glslang::TIntermediate* intermediate = program->getIntermediate(stage);
|
||
std::vector<uint32_t> spirv;
|
||
|
||
glslang::SpvOptions options;
|
||
options.disableOptimizer = _options.debugInformation;
|
||
options.generateDebugInfo = _options.debugInformation;
|
||
options.emitNonSemanticShaderDebugInfo = _options.debugInformation;
|
||
options.emitNonSemanticShaderDebugSource = _options.debugInformation;
|
||
|
||
glslang::GlslangToSpv(*intermediate, spirv, &options);
|
||
|
||
spvtools::Optimizer opt(getSpirvTargetVersion(_version, _messageWriter));
|
||
|
||
auto print_msg_to_stderr = [_messageWriter, &messageErr](
|
||
spv_message_level_t
|
||
, const char*
|
||
, const spv_position_t&
|
||
, const char* m
|
||
)
|
||
{
|
||
bx::write(_messageWriter, &messageErr, "Error: %s\n", m);
|
||
};
|
||
|
||
opt.SetMessageConsumer(print_msg_to_stderr);
|
||
|
||
opt.RegisterLegalizationPasses();
|
||
|
||
spvtools::ValidatorOptions validatorOptions;
|
||
validatorOptions.SetBeforeHlslLegalization(true);
|
||
|
||
if (!opt.Run(
|
||
spirv.data()
|
||
, spirv.size()
|
||
, &spirv
|
||
, validatorOptions
|
||
, false
|
||
) )
|
||
{
|
||
compiled = false;
|
||
}
|
||
else
|
||
{
|
||
if (g_verbose)
|
||
{
|
||
glslang::SpirvToolsDisassemble(std::cout, spirv, getSpirvTargetVersion(_version, _messageWriter));
|
||
}
|
||
|
||
spirv_cross::CompilerReflection refl(spirv);
|
||
spirv_cross::ShaderResources resourcesrefl = refl.get_shader_resources();
|
||
|
||
// Loop through the separate_images, and extract the uniform names:
|
||
for (auto &resource : resourcesrefl.separate_images)
|
||
{
|
||
std::string name = refl.get_name(resource.id);
|
||
|
||
if (name.size() > 7
|
||
&& 0 == bx::strCmp(name.c_str() + name.length() - 7, "Texture") )
|
||
{
|
||
name = name.substr(0, name.length() - 7);
|
||
}
|
||
|
||
uint32_t binding_index = refl.get_decoration(resource.id, spv::Decoration::DecorationBinding);
|
||
|
||
auto imageType = refl.get_type(resource.base_type_id).image;
|
||
auto componentType = refl.get_type(imageType.type).basetype;
|
||
|
||
bool isCompareSampler = false;
|
||
for (auto& sampler : resourcesrefl.separate_samplers)
|
||
{
|
||
if (binding_index + 16 == refl.get_decoration(sampler.id, spv::Decoration::DecorationBinding) )
|
||
{
|
||
std::string samplerName = refl.get_name(sampler.id);
|
||
isCompareSampler = refl.variable_is_depth_or_compare(sampler.id) || samplerName.find("Comparison") != std::string::npos;
|
||
break;
|
||
}
|
||
}
|
||
|
||
Uniform un;
|
||
un.name = name;
|
||
un.type = UniformType::Enum(UniformType::Sampler
|
||
| kUniformSamplerBit
|
||
| (isCompareSampler ? kUniformCompareBit : 0)
|
||
);
|
||
|
||
un.texComponent = textureComponentTypeToId(SpirvCrossBaseTypeToFormatType(componentType, imageType.depth) );
|
||
un.texDimension = textureDimensionToId(SpirvDimToTextureViewDimension(imageType.dim, imageType.arrayed) );
|
||
un.texFormat = uint16_t(s_textureFormats[imageType.format]);
|
||
|
||
un.regIndex = uint16_t(binding_index);
|
||
un.regCount = 0; // unused
|
||
|
||
uniforms.push_back(un);
|
||
}
|
||
|
||
// Loop through the storage_images, and extract the uniform names:
|
||
for (auto &resource : resourcesrefl.storage_images)
|
||
{
|
||
std::string name = refl.get_name(resource.id);
|
||
|
||
uint32_t binding_index = refl.get_decoration(resource.id, spv::Decoration::DecorationBinding);
|
||
|
||
auto imageType = refl.get_type(resource.base_type_id).image;
|
||
auto componentType = refl.get_type(imageType.type).basetype;
|
||
|
||
spirv_cross::Bitset flags = refl.get_decoration_bitset(resource.id);
|
||
UniformType::Enum type = flags.get(spv::DecorationNonWritable)
|
||
? UniformType::Enum(kUniformReadOnlyBit | UniformType::End)
|
||
: UniformType::End;
|
||
|
||
Uniform un;
|
||
un.name = name;
|
||
un.type = type;
|
||
|
||
un.texComponent = textureComponentTypeToId(SpirvCrossBaseTypeToFormatType(componentType, imageType.depth) );
|
||
un.texDimension = textureDimensionToId(SpirvDimToTextureViewDimension(imageType.dim, imageType.arrayed) );
|
||
un.texFormat = uint16_t(s_textureFormats[imageType.format]);
|
||
|
||
un.regIndex = uint16_t(binding_index);
|
||
un.regCount = descriptorTypeToId(DescriptorType::StorageImage);
|
||
|
||
uniforms.push_back(un);
|
||
}
|
||
|
||
bx::Error err;
|
||
|
||
// Loop through the storage buffer, and extract the uniform names:
|
||
for (auto& resource : resourcesrefl.storage_buffers)
|
||
{
|
||
std::string name = refl.get_name(resource.id);
|
||
|
||
uint32_t binding_index = refl.get_decoration(resource.id, spv::Decoration::DecorationBinding);
|
||
|
||
spirv_cross::Bitset flags = refl.get_buffer_block_flags(resource.id);
|
||
UniformType::Enum type = flags.get(spv::DecorationNonWritable)
|
||
? UniformType::Enum(kUniformReadOnlyBit | UniformType::End)
|
||
: UniformType::End;
|
||
|
||
Uniform un;
|
||
un.name = name;
|
||
un.type = type;
|
||
un.num = 0;
|
||
un.regIndex = uint16_t(binding_index);
|
||
un.regCount = descriptorTypeToId(DescriptorType::StorageBuffer);
|
||
|
||
uniforms.push_back(un);
|
||
}
|
||
|
||
uint16_t size = writeUniformArray(_shaderWriter, uniforms, _options.shaderType == 'f');
|
||
|
||
uint32_t shaderSize = (uint32_t)spirv.size() * sizeof(uint32_t);
|
||
bx::write(_shaderWriter, shaderSize, &err);
|
||
bx::write(_shaderWriter, spirv.data(), shaderSize, &err);
|
||
uint8_t nul = 0;
|
||
bx::write(_shaderWriter, nul, &err);
|
||
|
||
const uint8_t numAttr = (uint8_t)program->getNumLiveAttributes();
|
||
bx::write(_shaderWriter, numAttr, &err);
|
||
|
||
for (uint8_t ii = 0; ii < numAttr; ++ii)
|
||
{
|
||
bgfx::Attrib::Enum attr = toAttribEnum(program->getAttributeName(ii) );
|
||
if (bgfx::Attrib::Count != attr)
|
||
{
|
||
bx::write(_shaderWriter, bgfx::attribToId(attr), &err);
|
||
}
|
||
else
|
||
{
|
||
bx::write(_shaderWriter, uint16_t(UINT16_MAX), &err);
|
||
}
|
||
}
|
||
|
||
bx::write(_shaderWriter, size, &err);
|
||
}
|
||
}
|
||
}
|
||
|
||
delete program;
|
||
delete shader;
|
||
|
||
glslang::FinalizeProcess();
|
||
|
||
return compiled && linked && validated;
|
||
}
|
||
|
||
} // namespace spirv
|
||
|
||
bool compileSPIRVShader(const Options& _options, uint32_t _version, const std::string& _code, bx::WriterI* _shaderWriter, bx::WriterI* _messageWriter)
|
||
{
|
||
return spirv::compile(_options, _version, _code, _shaderWriter, _messageWriter, true);
|
||
}
|
||
|
||
} // namespace bgfx
|