DataflowImageNodes.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Dataflow/DataflowNode.h"
#include "Dataflow/DataflowImage.h"
 
#include "DataflowImageNodes.generated.h"
 
#define DATAFLOW_IMAGE_NODES_CATEGORY "Image"
 
USTRUCT()
struct FDataflowImageFromColorNode : public FDataflowNode
{
    GENERATED_USTRUCT_BODY()
    DATAFLOW_NODE_DEFINE_INTERNAL(FDataflowImageFromColorNode, "ImageFromColor", DATAFLOW_IMAGE_NODES_CATEGORY, "")
 
public:
    FDataflowImageFromColorNode(const UE::Dataflow::FNodeParameters& InParam, FGuid InGuid = FGuid::NewGuid());
 
private:
    UPROPERTY(EditAnywhere, Category = Options, meta = (DataflowInput));
    FLinearColor FillColor = FLinearColor::Black;
 
    UPROPERTY(EditAnywhere, Category = Options, meta = (DataflowInput));
    EDataflowImageResolution Resolution = EDataflowImageResolution::Resolution16;
 
    UPROPERTY(meta = (DataflowOutput));
    FDataflowImage Image;
 
    virtual void Evaluate(UE::Dataflow::FContext& Context, const FDataflowOutput* Out) const override;
};
 
USTRUCT()
struct FDataflowImageSplitChannelsNode : public FDataflowNode
{
    GENERATED_USTRUCT_BODY()
    DATAFLOW_NODE_DEFINE_INTERNAL(FDataflowImageSplitChannelsNode, "ImageSplitChannels", DATAFLOW_IMAGE_NODES_CATEGORY, "")
 
public:
    FDataflowImageSplitChannelsNode(const UE::Dataflow::FNodeParameters& InParam, FGuid InGuid = FGuid::NewGuid());
 
private:
    UPROPERTY(meta = (DataflowInput));
    FDataflowImage Image;
 
    UPROPERTY(meta = (DataflowOutput, PinColor = "R=1, G=0, B=0"));
    FDataflowImage Red;
 
    UPROPERTY(meta = (DataflowOutput, PinColor = "R=0, G=1, B=0"));
    FDataflowImage Green;
 
    UPROPERTY(meta = (DataflowOutput, PinColor = "R=0, G=0.2, B=1"));
    FDataflowImage Blue;
 
    UPROPERTY(meta = (DataflowOutput, PinColor = "R=0.7, G=0.7, B=0.7"));
    FDataflowImage Alpha;
 
    virtual void Evaluate(UE::Dataflow::FContext& Context, const FDataflowOutput* Out) const override;
};
 
UENUM()
enum class EDataflowImageCombineResolutionOption : int32
{
    Lowest = 0 UMETA(DisplayName = "Lowest Resolution"),
    Highest = 1 UMETA(DisplayName = "Highest Resolution"),
    UserDefined = 2 UMETA(DisplayName = "User Defined Resolution "),
};
 
USTRUCT()
struct FDataflowImageCombineChannelsNode : public FDataflowNode
{
    GENERATED_USTRUCT_BODY()
    DATAFLOW_NODE_DEFINE_INTERNAL(FDataflowImageCombineChannelsNode, "ImageCombineChannels", DATAFLOW_IMAGE_NODES_CATEGORY, "")
 
public:
    FDataflowImageCombineChannelsNode(const UE::Dataflow::FNodeParameters& InParam, FGuid InGuid = FGuid::NewGuid());
 
private:
    UPROPERTY(meta = (DataflowInput, PinColor = "R=1, G=0, B=0"));
    FDataflowImage Red;
 
    UPROPERTY(meta = (DataflowInput, PinColor = "R=0, G=1, B=0"));
    FDataflowImage Green;
 
    UPROPERTY(meta = (DataflowInput, PinColor = "R=0, G=0.2, B=1"));
    FDataflowImage Blue;
 
    UPROPERTY(meta = (DataflowInput, PinColor = "R=0.7, G=0.7, B=0.7"));
    FDataflowImage Alpha;
 
    UPROPERTY(meta = (DataflowOutput));
    FDataflowImage Image;
 
    UPROPERTY(EditAnywhere, Category = Options);
    EDataflowImageCombineResolutionOption ResolutionOptions = EDataflowImageCombineResolutionOption::Highest;
 
    UPROPERTY(EditAnywhere, Category = Options, meta = (EditCondition = "ResolutionOptions == EDataflowImageCombineResolutionOption::UserDefined"))
    EDataflowImageResolution Resolution = EDataflowImageResolution::Resolution512;
 
    virtual void Evaluate(UE::Dataflow::FContext& Context, const FDataflowOutput* Out) const override;
 
    void GetUserDefinedResolution(const TArray<const FDataflowImage*>& Images, int32& OutWidth, int32& OutHeight) const;
};
 
namespace UE::Dataflow
{
    void RegisterDataflowImageNodes();
}