1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors: Juha Kauppinen, Mika Hokkanen

    13 * 

    14 * Description: Photo Browser

    15 *

    16 */

    17 

    18 #ifndef __IEIMAGEDECODER_H__

    19 #define __IEIMAGEDECODER_H__

    20 

    21 // Include files

    22 #include <e32base.h>

    23 #include <f32file.h>

    24 #include <fbs.h>

    25 #include <ImageConversion.h>

    26 #include <IclExtJpegApi.h>

    27 

    28 #include "IEImage.h"

    29 

    30 class MDecodingObserver

    31 {

    32 public:

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

    34 	virtual void BitmapReadyL(TInt aError) = 0;

    35 };

    36 

    37 // Forward class declarations

    38 

    39 // Class declaration

    40 class CIEImageDecoder : CActive

    41 {

    42 public:

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

    44 	~CIEImageDecoder();

    45 

    46 private:

    47 	void ConstructL();

    48 	CIEImageDecoder(RFs& aFileServer, MDecodingObserver& aObserver);

    49 	

    50 public: // From CAtive

    51 	void RunL()	;

    52 	void DoCancel();

    53 	

    54 public:

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

    56 	void ConvertJpeg2YuvL(const TDesC& aSourceFile, 

    57 					HBufC8& aBuffer, 

    58 					const TImageForamt aImageFormat);

    59 	

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

    61 	

    62 	TPtr8 GetVisualFrame();

    63 	

    64 	void CancelDecoding();

    65 	

    66 private: // Data

    67 	RFs& iFileServer;

    68 	MDecodingObserver& iObserver;

    69 	CImageDecoder* iImageDecoder;

    70 	CExtJpegDecoder* iExtImageDecoder;

    71 	CVisualFrame* iVisualFrame;

    72 	TBool iDecoderBusy;

    73 	TBool iDecode2Yuv;

    74 	TBool iDecode2Bitmap;

    75 	TPtr8 iSrcPtr;

    76 	

    77 	TUint8* iBufU;

    78 	TInt iNumOfBitmaps;

    79 };

    80 

    81 #endif // __IEIMAGEDECODER_H__