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- A cooked game can be given an argument -shkfile=/path/to/file.shk (a "stable shader keys" file produced during the cook) and use it to provide information on compiled PSOs (and singular shaders if needed). [FYI] Kenzo.TerElst #preflight 63866f6c8b12eb83a7b5c1a1 [CL 23323655 by arciel rekman in ue5-main branch]
44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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/**
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* Code for reading .shk files and using that information to map shader hashes back to human-readable identifies.
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*/
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#pragma once
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#include "ShaderCodeLibrary.h"
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namespace UE
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{
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namespace ShaderUtils
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{
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/** Class that uses build metadata (*.shk files storing mapping of stable shader keys to their hashes) to provide high level info on shaders and PSOs. */
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class FShaderStableKeyDebugInfoReader
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{
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/** Maps shader hashes to their sources. */
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TMap<FSHAHash, TSet<FStableShaderKeyAndValue>> ShaderHashesToSource;
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public:
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/** Whether the info reader is usable */
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bool IsInitialized() const { return !ShaderHashesToSource.IsEmpty(); }
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/** Initializes the class with a pointer to directory holding SHK files */
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bool Initialize(const FString& ShaderStableKeyFile);
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/** Returns a string describing a shader. Because of shader deduplication there can be several multiple (thousands) possible options */
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FString GetShaderStableNameOptions(const FSHAHash& ShaderHash, int32 MaxOptionsToInclude = 16);
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/** Returns a string describing a PSO (shaders only). Because of shader deduplication there can be several multiple (thousands) possible options. */
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FString GetPSOStableNameOptions(const FGraphicsPipelineStateInitializer& Initializer, int32 MaxOptionsToInclude = 16);
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/** Prints a pipeline info to log if configured to do so. */
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void DumpPSOToLogIfConfigured(const FGraphicsPipelineStateInitializer& Initializer);
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};
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}
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}
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