/*

* Copyright (c) 2010 Ixonos Plc.

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the "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:

* Ixonos Plc

*

* Description:  

*

*/

//

// Jpeg encoder class

#ifndef __CJPEGSAVE_H__

#define __CJPEGSAVE_H__

#include <e32base.h>

#include <f32file.h>

#include "TBitmapHandle.h"

#include "MJpegSave.h"

class CFbsBitmap;

class TSHuffman;

class CJpegSave

	: public CBase

	, public MJpegSave

	{

	public:

		static CJpegSave* NewL( RFs* aFs, RFile* aFile );

		static CJpegSave* NewLC( RFs* aFs, RFile* aFile );

		~CJpegSave();

	private:

		CJpegSave( RFs* aFs, RFile* aFile );

		void ConstructL();

	public: // MJpegSave

		//void SaveL( const CFbsBitmap* aBitmap, const TDesC16& aFileName );

		void StartSaveL( const TSize& aSize, TPtr8 aExif, TInt aSaveBufferSize, TInt aQuality );

		void SaveBlock( const TBitmapHandle& aBitmap );

		void FinalizeSave();

		TPtrC8 Finalize();

	private:

		void WriteHuffman( TInt aValue );

		void CreateHuffmanL( TSHuffman* aHuffman, const TUint8* aBits, const TUint8* aVal );

		void WriteBits( TUint32 aValue, TInt aNumBits );

		TInt WriteDct( TInt* aDct, TSHuffman* aDc, TSHuffman* aAc );

		void Dct( TInt* aSource, TInt* aTarget );

		void Rgb2Yuv( TUint32* aRgb, TInt aWidth, TInt* aY, TInt* aU, TInt* aV );

		void MakeTables( TInt aQuality, TUint8* aY, TUint8* aUV );

		void WriteSaveBuffer( const TUint8* aSrc, TInt aBytes );

		void WriteSaveBuffer( TUint8 aValue );

		void WriteSaveBuffer( TUint16 aValue );

		void FlushSaveBuf();

	private:

		RFs* iFs;

		RFile* iSaveFile;

		TInt iSaveBufSize;

		TUint8* iSaveBuf;

		TInt iSaveBufPos;

		TInt iSaveBufBitPos;

		TUint8 iSaveByte;

/*

		TUint8* iBuffer;

		TInt iBufPos;

		TInt iBufBitPos;

*/

		TSHuffman* iHuffman[ 4 ];

		TSHuffman* iCurrentHuffman;

		TUint8* iCurrentQuant;

		TInt iDctMul[ 64 ][ 64 ];

		TInt iDy;

		TInt iDu;

		TInt iDv;

		TUint8 iYQuant[ 64 ];

		TUint8 iUVQuant[ 64 ];

	};

#endif