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 class MDecodingObserver

    29 {

    30 public:

    31 	//virtual void YuvImageReady(TInt aError) = 0;

    32 	virtual void BitmapReady(TInt aError) = 0;

    33 };

    34 

    35 // Forward class declarations

    36 

    37 // Class declaration

    38 class CIEImageDecoder : CActive

    39 {

    40 public:

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

    42 	~CIEImageDecoder();

    43 

    44 private:

    45 	void ConstructL();

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

    47 	

    48 public: // From CAtive

    49 	void RunL()	;

    50 	void DoCancel();

    51 	

    52 public:

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

    54 	void ConvertJpeg2YuvL(const TDesC& aSourceFile, 

    55 					HBufC8& aBuffer);

    56 	

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

    58 	

    59 	TPtr8 GetVisualFrame();

    60 	

    61 	void CancelDecoding();

    62 	

    63 private: // Data

    64 	RFs& iFileServer;

    65 	MDecodingObserver& iObserver;

    66 	CImageDecoder* iImageDecoder;

    67 	CExtJpegDecoder* iExtImageDecoder;

    68 	CVisualFrame* iVisualFrame;

    69 	TBool iDecoderBusy;

    70 	TBool iDecode2Yuv;

    71 	TBool iDecode2Bitmap;

    72 	TPtr8 iSrcPtr;

    73 	

    74 	TUint8* iBufU;

    75 	TInt iNumOfBitmaps;

    76 };

    77 

    78 #endif // __IEIMAGEDECODER_H__