/*

* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  

*        CDisplayChain 

*		Image processing class implementing

*		display specific image processing:

*			- Scaling to display size with pan support

*			- IETD - display specific color contrast enhancement

*			- Sharpening 

*			- Display feature compensation by simple color management

*			- Dithering 

*

*/

#ifndef __DisplayChain_H

#define __DisplayChain_H

#include <e32std.h> // for Fundamental Types

#include <e32base.h> // for Fundamental Types

#include <e32math.h> //for the calculation of exponents

#include <stdio.h>

#include "DCDigitalZoom.h"

#include "DCSharpening.h"

#include "DCIetd.h"

#include "DCDithering.h"

#include "DCColorManagement.h"

#include "DCDefines.h"

#include "DCInit.h"

//Class definition

class CDisplayChain : public CBase

{

public:

	//Standard functions

	CDisplayChain();

	static CDisplayChain* NewL();

	static CDisplayChain* NewLC();

	~CDisplayChain();

	// Second Phase contructor (may leave)

	void ConstructL();

	//Process original image and store result

	void ProcessL(const CFbsBitmap* InBitmap, CFbsBitmap* aTargetBitmap);

	//Processing parameters

	struct DisplayChainParams

	{

		TBool FirstOpening;

		TBool IetdON;				//IETD ON/OFF

		TBool SharpeningON;			//Sharpening ON/OFF

		TBool ColorManagementON;	//Color Management ON/OFF

		TBool DitheringON;			//Dithering ON/OFF

		TBool DigitalZoomON;		//Scaling ON/OFF

		//Parameters for each processing algorithm

		//See processing algorithm classes for details.

		CDCIetd::DCIetdParameters IETDParameters;

		DCSharpening::DCSharpeningParams SharpeningParameters;

		CDCColorManagement::DCColorManagementParams ColorManagementParameters;

		CDCDigitalZoom::DCDigitalZoomParams DZParameters;

	};	

	//Parameter excange

	void SetParameters(DisplayChainParams* Parameters);

	void GetParameters(DisplayChainParams* Parameters);

	//Limit integer value to byte [0,255]

	static inline TUint8 Limit255(TInt i) {return (TUint8)(i<0?0:(i>255?255:i));}

private:

	//PArameters

	DisplayChainParams Parameters;

	//Processing objects

	CDCIetd* IetdPtr;

	DCSharpening* SharpeningPtr;

	CDCColorManagement* ColorManagementPtr;

	CDCDithering* DitheringPtr;

	CDCDigitalZoom* DigitalZoomPtr;

};

#endif // ifndef __DisplayChain_H

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