// Copyright (c) 2005-2009 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:

//

/**

 @file

 @internalComponent 

*/

#ifndef MNGICLDECODER_H

#define MNGICLDECODER_H

#include "InputStream.h"

#include "MngReadCodec.h"

class CMngIclReadStream;

/**

	Restricted implementation of the ICL decoder for MGN-LC format, 

	doesn't support FrameCount() and decoding from a frame other than

	the 1st one.

*/

class CMngIclDecoder :	public CImageDecoderPlugin, 

						protected MDataFeed,

						protected MMngCodecObserver

	{

public:

 	static CMngIclDecoder* NewL();

	virtual ~CMngIclDecoder();

	virtual void ImageType(TInt aFrameNumber, TUid& aImageType, TUid& aImageSubType) const;

	CFrameInfoStrings* FrameInfoStringsL(RFs& aFs, TInt aFrameNumber);

protected:

// from the CImageDecoderPlugin //

	virtual void InitConvertL();

	virtual void DoConvert();

	virtual void ScanDataL();

	virtual void Cleanup();

// from the MDataFeed // 

	virtual TInt LockBuffer(TInt aPosition, TPtrC8& aBuffer, TInt aBytesToLock);

// from the MMngCodecObserver  // 

	virtual void OnCodecEvent(TCodecEvent aEventCode, TInt aErrorCode);

private:

	CMngIclDecoder();

	// From CImageDecoderPlugin

	// Called by ScanDataL.

	void ReadFormatL();

private:

	TBool iMngSubframesNoLoops;   //Subframes with No Loops

	CMngIclReadStream*	iMngIclReadStream;

	enum 

		{

		EStateReadData		=0,	//0

		EStateDataParsed,		//1

		EStatePlayAnimation,	//2

		EStateFrameReady,		//3

		EStateImageCompleted	//4

		}				iState;

	TBool				iCodecEventPending;

	TInt				iLatestCodecError;

	};

#endif // ndef MNGICLDECODER_H