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bddca76c94
* Add code to all shader format back-ends to take dead code removal into account when computing the version ID * Not enabled in Metal and OpenGL back-ends (require further testing) #rb dan.elksnitis #preflight 6390f1f15c5308d18c7364fb [CL 23433448 by Yuriy ODonnell in ue5-main branch]
138 lines
3.5 KiB
C++
138 lines
3.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "VulkanShaderFormat.h"
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#include "VulkanCommon.h"
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#include "Modules/ModuleInterface.h"
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#include "Modules/ModuleManager.h"
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#include "Interfaces/IShaderFormat.h"
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#include "Interfaces/IShaderFormatModule.h"
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#include "hlslcc.h"
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#include "ShaderCore.h"
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#include "ShaderCompilerCore.h"
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#include "DXCWrapper.h"
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#include "ShaderConductorContext.h"
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#include "RHIShaderFormatDefinitions.inl"
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class FShaderFormatVulkan : public IShaderFormat
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{
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enum
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{
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UE_SHADER_VULKAN_ES3_1_VER = 37,
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UE_SHADER_VULKAN_SM5_VER = 37,
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};
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int32 InternalGetVersion(FName Format) const
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{
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if (Format == NAME_VULKAN_SM5 || Format == NAME_VULKAN_SM5_ANDROID)
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{
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return UE_SHADER_VULKAN_SM5_VER;
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}
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else if (Format == NAME_VULKAN_ES3_1_ANDROID || Format == NAME_VULKAN_ES3_1)
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{
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return UE_SHADER_VULKAN_ES3_1_VER;
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}
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check(0);
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return -1;
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}
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uint32 ShaderConductorVersionHash;
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public:
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FShaderFormatVulkan(uint32 InShaderConductorVersionHash)
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: ShaderConductorVersionHash(InShaderConductorVersionHash)
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{
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}
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virtual uint32 GetVersion(FName Format) const override
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{
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uint32 Version = HashCombine(GetTypeHash(HLSLCC_VersionMajor), GetTypeHash(HLSLCC_VersionMinor));
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Version = HashCombine(Version, GetTypeHash(InternalGetVersion(Format)));
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Version = HashCombine(Version, GetTypeHash(ShaderConductorVersionHash));
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#if VULKAN_ENABLE_BINDING_DEBUG_NAMES
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Version = HashCombine(Version, 0xFC0848E2);
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#endif
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#if UE_VULKAN_SHADER_COMPILER_ALLOW_DEAD_CODE_REMOVAL
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{
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static const auto CVar = IConsoleManager::Get().FindConsoleVariable(TEXT("r.Shader.RemoveDeadCode"));
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if (CVar && CVar->GetInt() != 0)
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{
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Version = HashCombine(Version, 0x75E2FE85);
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}
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}
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#endif // UE_VULKAN_SHADER_COMPILER_ALLOW_DEAD_CODE_REMOVAL
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return Version;
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}
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virtual void GetSupportedFormats(TArray<FName>& OutFormats) const
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{
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OutFormats.Add(NAME_VULKAN_SM5);
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OutFormats.Add(NAME_VULKAN_ES3_1_ANDROID);
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OutFormats.Add(NAME_VULKAN_ES3_1);
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OutFormats.Add(NAME_VULKAN_SM5_ANDROID);
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}
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virtual void CompileShader(FName Format, const struct FShaderCompilerInput& Input, struct FShaderCompilerOutput& Output,const FString& WorkingDirectory) const
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{
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check(InternalGetVersion(Format) >= 0);
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if (Format == NAME_VULKAN_ES3_1)
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{
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DoCompileVulkanShader(Input, Output, WorkingDirectory, EVulkanShaderVersion::ES3_1);
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}
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else if (Format == NAME_VULKAN_ES3_1_ANDROID)
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{
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DoCompileVulkanShader(Input, Output, WorkingDirectory, EVulkanShaderVersion::ES3_1_ANDROID);
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}
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else if (Format == NAME_VULKAN_SM5 || Format == NAME_VULKAN_SM5_ANDROID)
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{
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DoCompileVulkanShader(Input, Output, WorkingDirectory, EVulkanShaderVersion::SM5);
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}
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}
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virtual const TCHAR* GetPlatformIncludeDirectory() const
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{
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return TEXT("Vulkan");
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}
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virtual bool UsesHLSLcc(const struct FShaderCompilerInput& Input) const override
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{
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return !Input.Environment.CompilerFlags.Contains(CFLAG_ForceDXC);
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}
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};
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/**
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* Module for Vulkan shaders
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*/
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static IShaderFormat* Singleton = nullptr;
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class FVulkanShaderFormatModule : public IShaderFormatModule, public FShaderConductorModuleWrapper
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{
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public:
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virtual ~FVulkanShaderFormatModule()
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{
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delete Singleton;
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Singleton = nullptr;
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}
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virtual IShaderFormat* GetShaderFormat()
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{
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if (!Singleton)
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{
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Singleton = new FShaderFormatVulkan(FShaderConductorModuleWrapper::GetModuleVersionHash());
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}
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return Singleton;
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}
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virtual void ShutdownModule() override
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{
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CrossCompiler::FShaderConductorContext::Shutdown();
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}
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};
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IMPLEMENT_MODULE( FVulkanShaderFormatModule, VulkanShaderFormat);
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