MaterialExpressionDataDrivenShaderPlatformInfoSwitch.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "MaterialExpressionIO.h"
#include "MaterialValueType.h"
#include "Materials/MaterialExpression.h"
#include "RHIFeatureLevel.h"
#include "MaterialExpressionDataDrivenShaderPlatformInfoSwitch.generated.h"
 
enum EShaderPlatform : uint16;
 
UENUM()
enum EDataDrivenShaderPlatformInfoCondition : int
{
    COND_True UMETA(DisplayName = "Property must be true"),
    COND_False UMETA(DisplayName = "Property must be false"),
};
 
USTRUCT()
struct FDataDrivenShaderPlatformInfoInput
{
    GENERATED_USTRUCT_BODY()
 
        UPROPERTY(EditAnywhere, Category = FDataDrivenShaderPlatformInfoInput, meta = (GetOptions = "GetNameOptions"))
        FName InputName;
 
        UPROPERTY(EditAnywhere, Category = FDataDrivenShaderPlatformInfoInput)
        TEnumAsByte<EDataDrivenShaderPlatformInfoCondition> PropertyCondition = EDataDrivenShaderPlatformInfoCondition::COND_True;
};
 
UCLASS(collapsecategories, hidecategories = Object, MinimalAPI)
class UMaterialExpressionDataDrivenShaderPlatformInfoSwitch : public UMaterialExpression
{
    GENERATED_UCLASS_BODY()
        UPROPERTY()
        FExpressionInput InputTrue;
        
        UPROPERTY()
        FExpressionInput InputFalse;
 
        UPROPERTY(EditAnywhere, Category = DataDrivenShaderPlatformInfoInput)
        TArray<FDataDrivenShaderPlatformInfoInput> DDSPIPropertyNames;
 
        UFUNCTION()
        TArray<FString> GetNameOptions() const;
        
        UPROPERTY()
        uint32 bContainsInvalidProperty : 1;
 
        //~ Begin UObject Interface
        virtual void PostLoad() override;
#if WITH_EDITOR
        virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) override;
#endif
        //~ End UObject Interface
        // 
#if WITH_EDITOR
    FExpressionInput* GetEffectiveInput(EShaderPlatform ShaderPlatform, FString& OutError);
 
    //~ Begin UMaterialExpression Interface
    virtual void Build(MIR::FEmitter& Emitter) override;
    virtual int32 Compile(class FMaterialCompiler* Compiler, int32 OutputIndex) override;
    virtual void GetCaption(TArray<FString>& OutCaptions) const override;
    virtual bool IsInputConnectionRequired(int32 InputIndex) const override;
    virtual FName GetInputName(int32 InputIndex) const override;
    virtual bool IsResultMaterialAttributes(int32 OutputIndex) override;
    virtual EMaterialValueType GetInputValueType(int32 InputIndex) override { return MCT_Unknown; }
    virtual EMaterialValueType GetOutputValueType(int32 OutputIndex) override { return MCT_Unknown; }
#endif // WITH_EDITOR
    //~ End UMaterialExpression Interface
};