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ccaa39a49e
- Fix SV_VertexID & InstanceID usage - Fix for gl_FragDepth & prep for MRTs [CL 2270944 by Rolando Caloca in Main branch]
85 lines
2.0 KiB
C++
85 lines
2.0 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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#include "MetalShaderFormat.h"
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#include "Core.h"
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#include "ModuleInterface.h"
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#include "ModuleManager.h"
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#include "TargetPlatform.h"
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#include "ShaderCore.h"
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#include "hlslcc.h"
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static FName NAME_SF_METAL(TEXT("SF_METAL"));
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class FMetalShaderFormat : public IShaderFormat
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{
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enum
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{
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HEADER_VERSION = 6,
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};
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struct FVersion
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{
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uint16 HLSLCCMajor : 3;
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uint16 HLSLCCMinor : 7;
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uint16 Format : 5;
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uint16 OfflineCompiled : 1;
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};
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public:
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virtual uint16 GetVersion(FName Format) const override
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{
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static_assert(sizeof(FVersion) == sizeof(uint16), "Out of bits!");
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union
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{
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FVersion Version;
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uint16 Raw;
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} Version;
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Version.Version.Format = HEADER_VERSION;
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Version.Version.HLSLCCMajor = HLSLCC_VersionMajor;
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Version.Version.HLSLCCMinor = HLSLCC_VersionMinor;
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Version.Version.OfflineCompiled = METAL_OFFLINE_COMPILE;
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// Check that we didn't overwrite any bits
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check(Version.Version.Format == HEADER_VERSION);
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check(Version.Version.HLSLCCMajor == HLSLCC_VersionMajor);
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check(Version.Version.HLSLCCMinor == HLSLCC_VersionMinor);
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check(Version.Version.OfflineCompiled == METAL_OFFLINE_COMPILE);
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return Version.Raw;
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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_SF_METAL);
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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(Format == NAME_SF_METAL);
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CompileShader_Metal(Input, Output, WorkingDirectory);
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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 FMetalShaderFormatModule : public IShaderFormatModule
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{
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public:
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virtual ~FMetalShaderFormatModule()
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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 FMetalShaderFormat();
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}
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return Singleton;
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}
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};
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IMPLEMENT_MODULE( FMetalShaderFormatModule, MetalShaderFormat);
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