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a1af36037f
- Changing all shader versions to Guid. - Fixing shader version guids in shaders to not be in comments. - Adding a shader version to RayTracingCommon.ush. #rb dan.elksnitis, Jason.Nadro, Yuriy.ODonnell, Laura.Hermanns [CL 29168287 by christopher waters in ue5-main branch]
128 lines
3.4 KiB
C++
128 lines
3.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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//
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#include "ShaderFormatOpenGL.h"
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#include "ShaderCompilerCommon.h"
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#include "ShaderPreprocessTypes.h"
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#include "HAL/FileManager.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 "ShaderCore.h"
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#include "ShaderCompilerCore.h"
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static FName NAME_GLSL_150_ES3_1(TEXT("GLSL_150_ES31"));
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static FName NAME_GLSL_ES3_1_ANDROID(TEXT("GLSL_ES3_1_ANDROID"));
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extern bool PreprocessOpenGLShader(
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const FShaderCompilerInput& Input,
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const FShaderCompilerEnvironment& Environment,
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FShaderPreprocessOutput& Output,
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GLSLVersion Version);
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extern void CompileOpenGLShader(
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const FShaderCompilerInput& Input,
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const FString& InPreprocessedSource,
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FShaderCompilerOutput& Output,
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const FString& WorkingDirectory,
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GLSLVersion Version);
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/** Version for shader format, this becomes part of the DDC key. */
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static const FGuid UE_SHADER_GLSL_VER = FGuid("45CB4440-A342-475E-AAD1-4CB8E228D1C9");
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class FShaderFormatGLSL : public UE::ShaderCompilerCommon::FBaseShaderFormat
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{
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static void CheckFormat(FName Format)
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{
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check(Format == NAME_GLSL_150_ES3_1 || Format == NAME_GLSL_ES3_1_ANDROID);
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}
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public:
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virtual uint32 GetVersion(FName Format) const override
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{
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CheckFormat(Format);
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FGuid GLSLVersion{};
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if (ensure(Format == NAME_GLSL_150_ES3_1 || Format == NAME_GLSL_ES3_1_ANDROID))
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{
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GLSLVersion = UE_SHADER_GLSL_VER;
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}
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const uint32 BaseHash = GetTypeHash(GLSLVersion);
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uint32 Version = GetTypeHash(HLSLCC_VersionMinor);
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Version = HashCombine(Version, BaseHash);
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#if UE_OPENGL_SHADER_COMPILER_ALLOW_DEAD_CODE_REMOVAL
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Version = HashCombine(Version, 0x75E2FE85);
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#endif // UE_OPENGL_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 override
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{
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OutFormats.Add(NAME_GLSL_150_ES3_1);
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OutFormats.Add(NAME_GLSL_ES3_1_ANDROID);
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}
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static GLSLVersion TranslateFormatNameToEnum(FName Format)
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{
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if (Format == NAME_GLSL_150_ES3_1)
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{
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return GLSL_150_ES3_1;
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}
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else if (Format == NAME_GLSL_ES3_1_ANDROID)
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{
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return GLSL_ES3_1_ANDROID;
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}
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else
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{
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check(0);
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return GLSL_MAX;
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}
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}
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virtual bool PreprocessShader(const FShaderCompilerInput& Input, const FShaderCompilerEnvironment& Environment, FShaderPreprocessOutput& PreprocessOutput) const override
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{
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CheckFormat(Input.ShaderFormat);
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return PreprocessOpenGLShader(Input, Environment, PreprocessOutput, TranslateFormatNameToEnum(Input.ShaderFormat));
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}
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virtual void CompilePreprocessedShader(const FShaderCompilerInput& Input, const FShaderPreprocessOutput& PreprocessOutput, FShaderCompilerOutput& Output, const FString& WorkingDirectory) const override
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{
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CheckFormat(Input.ShaderFormat);
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CompileOpenGLShader(Input, PreprocessOutput.GetSource(), Output, WorkingDirectory, TranslateFormatNameToEnum(Input.ShaderFormat));
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}
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virtual const TCHAR* GetPlatformIncludeDirectory() const override
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{
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return TEXT("GL");
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}
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};
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/**
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* Module for OpenGL shaders
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*/
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static IShaderFormat* Singleton = nullptr;
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class FShaderFormatOpenGLModule : public IShaderFormatModule
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{
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public:
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virtual ~FShaderFormatOpenGLModule() override
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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() override
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{
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if (!Singleton)
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{
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Singleton = new FShaderFormatGLSL();
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}
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return Singleton;
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}
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};
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IMPLEMENT_MODULE( FShaderFormatOpenGLModule, ShaderFormatOpenGL);
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