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4f9b4635d3
Reapply change that did not correctly make it into 19.01. #rb Chris.Babcock [FYI] Chris.Babcock #ROBOMERGE-AUTHOR: jack.porter #ROBOMERGE-SOURCE: CL 18465602 via CL 18465606 via CL 18465616 via CL 18465618 via CL 18465694 via CL 18465699 #ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669) [CL 18465700 by jack porter in ue5-release-engine-test branch]
114 lines
2.5 KiB
C++
114 lines
2.5 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 "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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class FShaderFormatGLSL : public IShaderFormat
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{
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enum
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{
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/** Version for shader format, this becomes part of the DDC key. */
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UE_SHADER_GLSL_VER = 103,
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};
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void CheckFormat(FName Format) const
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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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uint32 GLSLVersion = 0;
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if (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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else
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{
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check(0);
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}
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const uint16 Version = ((HLSLCC_VersionMinor & 0xff) << 8) | (GLSLVersion & 0xff);
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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 void CompileShader(FName Format, const struct FShaderCompilerInput& Input, struct FShaderCompilerOutput& Output,const FString& WorkingDirectory) const override
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{
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CheckFormat(Format);
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GLSLVersion Version = TranslateFormatNameToEnum(Format);
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FOpenGLFrontend Frontend;
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// the frontend will run the cross compiler
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Frontend.CompileShader(Input, Output, WorkingDirectory, Version);
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}
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virtual const TCHAR* GetPlatformIncludeDirectory() const
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{
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return TEXT("GL");
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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 OpenGL shaders
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*/
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static IShaderFormat* Singleton = NULL;
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class FShaderFormatOpenGLModule : public IShaderFormatModule
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{
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public:
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virtual ~FShaderFormatOpenGLModule()
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{
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delete Singleton;
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Singleton = NULL;
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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 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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