/*

* Copyright (c) 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: Juha Kauppinen, Mika Hokkanen

* 

* Description: Photo Browser

*

*/

#ifndef __IEIMAGEDECODER_H__

#define __IEIMAGEDECODER_H__

// Include files

#include <e32base.h>

#include <f32file.h>

#include <fbs.h>

#include <ImageConversion.h>

#include <IclExtJpegApi.h>

#include "IEImage.h"

class MDecodingObserver

{

public:

	//virtual void YuvImageReadyL(TInt aError) = 0;

	virtual void BitmapReadyL(TInt aError) = 0;

};

// Forward class declarations

// Class declaration

class CIEImageDecoder : CActive

{

public:

	static CIEImageDecoder* NewL(RFs& aFileServer, MDecodingObserver& aObserver);

	~CIEImageDecoder();

private:

	void ConstructL();

	CIEImageDecoder(RFs& aFileServer, MDecodingObserver& aObserver);

public: // From CAtive

	void RunL()	;

	void DoCancel();

public:

	void GetImageSizeL(const TFileName aFileName, TSize& aSize);

	void ConvertJpeg2YuvL(const TDesC& aSourceFile, 

					HBufC8& aBuffer, 

					const TImageForamt aImageFormat);

	void ConvertJpeg2BitmapL(CFbsBitmap& aDestBitmap, TDesC8& aSourceData);

	TPtr8 GetVisualFrame();

	void CancelDecoding();

private: // Data

	RFs& iFileServer;

	MDecodingObserver& iObserver;

	CImageDecoder* iImageDecoder;

	CExtJpegDecoder* iExtImageDecoder;

	CVisualFrame* iVisualFrame;

	TBool iDecoderBusy;

	TBool iDecode2Yuv;

	TBool iDecode2Bitmap;

	TPtr8 iSrcPtr;

	TUint8* iBufU;

	TInt iNumOfBitmaps;

};

#endif // __IEIMAGEDECODER_H__