93 lines
3.1 KiB
C++
93 lines
3.1 KiB
C++
#pragma once
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#include"spirv_cross.hpp"
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#include<vulkan/vulkan.h>
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#include<hgl/type/BaseString.h>
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using namespace hgl;
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VK_NAMESPACE_BEGIN
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class ShaderParse
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{
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spirv_cross::Compiler *compiler;
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spirv_cross::ShaderResources resource;
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public:
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ShaderParse(const void *spv_data,const uint32_t spv_size)
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{
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compiler=new spirv_cross::Compiler((const uint32_t *)spv_data,spv_size/sizeof(uint32_t));
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resource=compiler->get_shader_resources();
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}
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~ShaderParse()
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{
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delete compiler;
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}
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#define SHADER_PARSE_GET_RESOURCE(name,buf_name) const spirv_cross::SmallVector<spirv_cross::Resource> &Get##name()const{return resource.buf_name;}
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SHADER_PARSE_GET_RESOURCE(UBO, uniform_buffers)
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SHADER_PARSE_GET_RESOURCE(SSBO, storage_buffers)
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SHADER_PARSE_GET_RESOURCE(StageInputs, stage_inputs)
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SHADER_PARSE_GET_RESOURCE(StageOutputs, stage_outputs)
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SHADER_PARSE_GET_RESOURCE(Sampler, sampled_images)
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SHADER_PARSE_GET_RESOURCE(Subpass, subpass_inputs)
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//SmallVector<Resource> storage_images;
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//SmallVector<Resource> atomic_counters;
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//SmallVector<Resource> acceleration_structures;
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//SmallVector<Resource> push_constant_buffers;
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//SmallVector<Resource> separate_images;
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//SmallVector<Resource> separate_samplers;
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#undef SHADER_PARSE_GET_RESOURCE
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public:
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const UTF8String GetName(const spirv_cross::Resource &res)const
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{
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return UTF8String(compiler->get_name(res.id).c_str());
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}
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const uint32_t GetBinding(const spirv_cross::Resource &res)const
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{
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return compiler->get_decoration(res.id,spv::DecorationBinding);
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}
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const uint32_t GetLocation(const spirv_cross::Resource &res)const
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{
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return compiler->get_decoration(res.id,spv::DecorationLocation);
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}
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const VkFormat GetFormat(const spirv_cross::Resource &res)const
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{
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const spirv_cross::SPIRType &type=compiler->get_type(res.type_id);
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constexpr VkFormat format[][4]=
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{
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{FMT_R8I,FMT_RG8I,VK_FORMAT_UNDEFINED,FMT_RGBA8I}, //sbyte
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{FMT_R8U,FMT_RG8U,VK_FORMAT_UNDEFINED,FMT_RGBA8U}, //ubyte
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{FMT_R16I,FMT_RG16I,VK_FORMAT_UNDEFINED,FMT_RGBA16I},//short
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{FMT_R16U,FMT_RG16U,VK_FORMAT_UNDEFINED,FMT_RGBA16U},//ushort
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{FMT_R32I,FMT_RG32I,FMT_RGB32I,FMT_RGBA32I},//int
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{FMT_R32U,FMT_RG32U,FMT_RGB32U,FMT_RGBA32U},//uint
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{FMT_R64I,FMT_RG64I,FMT_RGB64I,FMT_RGBA64I},//int64
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{FMT_R64U,FMT_RG64U,FMT_RGB64U,FMT_RGBA64U},//uint64
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{}, //atomic
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{FMT_R16F,FMT_RG16F,VK_FORMAT_UNDEFINED,FMT_RGBA16F},//half
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{FMT_R32F,FMT_RG32F,FMT_RGB32F,FMT_RGBA32F},//float
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{FMT_R64F,FMT_RG64F,FMT_RGB64F,FMT_RGBA64F} //double
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};
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if(type.basetype<spirv_cross::SPIRType::SByte
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||type.basetype>spirv_cross::SPIRType::Double
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||type.basetype==spirv_cross::SPIRType::AtomicCounter
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||type.vecsize<1
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||type.vecsize>4)
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return VK_FORMAT_UNDEFINED;
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return format[type.basetype-spirv_cross::SPIRType::SByte][type.vecsize-1];
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}
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};//class ShaderParse
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VK_NAMESPACE_END |