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70 lines
3.0 KiB
C++
70 lines
3.0 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "CrossCompilerCommon.h"
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// Forward declaration from <spirv_reflect.h>
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struct SpvReflectInterfaceVariable;
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struct SpvReflectBlockVariable;
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// Cross compiler support/common functionality
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namespace CrossCompiler
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{
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class SHADERCOMPILERCOMMON_API FHlslccHeaderWriter
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{
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public:
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void WriteInputAttribute(const SpvReflectInterfaceVariable& Attribute);
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void WriteInputAttribute(const TCHAR* AttributeName, const TCHAR* TypeSpecifier, int32 Location, bool bLocationPrefix, bool bLocationSuffix);
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void WriteOutputAttribute(const SpvReflectInterfaceVariable& Attribute);
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void WriteOutputAttribute(const TCHAR* AttributeName, const TCHAR* TypeSpecifier, int32 Location, bool bLocationPrefix, bool bLocationSuffix);
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void WriteUniformBlock(const TCHAR* ResourceName, uint32 BindingIndex);
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void WritePackedGlobal(const TCHAR* ResourceName, EPackedTypeName PackedType, uint32 ByteOffset, uint32 ByteSize);
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void WritePackedGlobal(const SpvReflectBlockVariable& Variable);
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void WritePackedUB(uint32 BindingIndex);
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void WritePackedUBField(const TCHAR* ResourceName, uint32 ByteOffset, uint32 ByteSize);
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void WritePackedUBGlobalCopy(uint32 SourceCB, uint32 SourceOffset, uint32 DestCBIndex, uint32 DestCBPrecision, uint32 DestOffset, uint32 Size, bool bGroupFlattenedUBs = false);
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void WriteSRV(const TCHAR* ResourceName, uint32 BindingIndex, uint32 Count = 1);
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void WriteSRV(const TCHAR* ResourceName, uint32 BindingIndex, uint32 Count, const TArray<FString>& AssociatedResourceNames);
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void WriteUAV(const TCHAR* ResourceName, uint32 BindingIndex, uint32 Count = 1);
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void WriteSamplerState(const TCHAR* ResourceName, uint32 BindingIndex);
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void WriteNumThreads(uint32 NumThreadsX, uint32 NumThreadsY, uint32 NumThreadsZ);
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void WriteSideTable(const TCHAR* ResourceName, uint32 SideTableIndex);
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void WriteArgumentBuffers(uint32 BindingIndex, const TArray<uint32>& ResourceIndices);
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/** Returns the finalized meta data. */
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FString ToString() const;
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private:
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void WriteIOAttribute(FString& OutMetaData, const TCHAR* AttributeName, const TCHAR* TypeSpecifier, int32 Location, bool bLocationPrefix, bool bLocationSuffix);
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void WriteIOAttribute(FString& OutMetaData, const SpvReflectInterfaceVariable& Attribute, bool bIsInput);
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private:
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struct FMetaDataStrings
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{
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FString InputAttributes;
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FString OutputAttributes;
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FString UniformBlocks;
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FString PackedGlobals;
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FString PackedUB;
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FString PackedUBFields;
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FString PackedUBGlobalCopies;
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FString SRVs; // Shader resource views (SRV) and samplers
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FString UAVs; // Unordered access views (UAV)
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FString SamplerStates;
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FString NumThreads;
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FString ExternalTextures; // External texture resources (Vulkan ES3.1 profile only)
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FString SideTable; // Side table for additional indices, e.,g. "spvBufferSizeConstants(31)" (Metal only)
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FString ArgumentBuffers; // Indirect argument buffers (Metal only)
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};
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private:
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FMetaDataStrings Strings;
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};
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}
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