// Copyright Epic Games, Inc. All Rights Reserved.

#pragma once

#include "HAL/Platform.h"
#include "MuR/Image.h"
#include "MuR/Operations.h"
#include "MuR/Ptr.h"
#include "MuT/AST.h"


namespace mu
{
	struct FProgram;

	class ASTOpImageCompose final : public ASTOp
	{
	public:

		ASTChild Layout;
		ASTChild Base;
		ASTChild BlockImage;
		ASTChild Mask;
		uint64 BlockId=0;

	public:

		ASTOpImageCompose();
		ASTOpImageCompose(const ASTOpImageCompose&) = delete;
		~ASTOpImageCompose();

		virtual EOpType GetOpType() const override { return EOpType::IM_COMPOSE; }
		virtual uint64 Hash() const override;
		virtual bool IsEqual(const ASTOp& otherUntyped) const override;
		virtual Ptr<ASTOp> Clone(MapChildFuncRef mapChild) const override;
		virtual void ForEachChild(const TFunctionRef<void(ASTChild&)>) override;
		virtual void Link(FProgram& program, FLinkerOptions* Options) override;
		//TODO: virtual Ptr<ASTOp> OptimiseSink(const FModelOptimizationOptions& options, FOptimizeSinkContext& context) const override;
		virtual Ptr<ASTOp> OptimiseSemantic(const FModelOptimizationOptions& options, int32 Pass) const override;
		virtual FImageDesc GetImageDesc(bool returnBestOption, FGetImageDescContext* context) const override;
		virtual void GetLayoutBlockSize(int32* OutBlockX, int32* OutBlockY) override;
		virtual bool IsImagePlainConstant(FVector4f& OutColor) const override;
		virtual Ptr<ImageSizeExpression> GetImageSizeExpression() const override;
		virtual FSourceDataDescriptor GetSourceDataDescriptor(FGetSourceDataDescriptorContext*) const override;

	};

}