1 // Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // Licensed under US Patent No 4,558,302 and foreign counterparts

    15 // 

    16 //

    17 

    18 #ifndef GIFCONVERT_H

    19 #define GIFCONVERT_H

    20 

    21 #include <icl/imageplugin.h>

    22 #include "GIFcodec.h"

    23 #include "GIFFormat.h"

    24 

    25 class CGifReadCodec;

    26 class TGifImageInformation;

    27 class CGifDecoder : public CImageDecoderPlugin

    28 	{

    29 public:

    30 	static CGifDecoder* NewL();

    31 	~CGifDecoder();

    32 

    33 	// From CImageDecoder

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

    35 	TInt NumberOfImageComments() const;

    36 	HBufC* ImageCommentL(TInt aCommentNumber) const;

    37 

    38 protected:

    39 	// From CImageDecoder

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

    41 

    42 private:

    43 	CGifDecoder();

    44 	void ReadFormatL();

    45 	// From CImageDecoderPlugin

    46 	void ScanDataL();

    47 private:

    48 	TInt iReadBlockLength;

    49 	TGifFileInformation iFileInfo;

    50 	TInt iGlobalPaletteEntries;

    51 	TRgb iGlobalPalette[KGifColorTableMaxEntries];

    52 	TBool iLoadingFrame;

    53 	};

    54 

    55 

    56 // CGifEncoder

    57 class CGifScaler;

    58 class CGifWriteCodec;

    59 class CGifEncoder : public CImageEncoderPlugin

    60 	{

    61 public:

    62 	static CGifEncoder* NewL();

    63 	virtual ~CGifEncoder();

    64 	

    65 	const CPalette* Palette() const;

    66 protected:

    67 	//from CImageEncoderPlugin

    68 	void PrepareEncoderL(const CFrameImageData* aFrameImageData);

    69 	void UpdateHeaderL();

    70 	void WriteExifDataL(TRequestStatus*& aScaleCompletionStatus);

    71 private:

    72 	void ConstructL();

    73 	CGifEncoder();

    74 private:

    75 	CPalette* iPalette;

    76 	CFbsBitmap* iDest;

    77 	CGifScaler* iGifScaler;

    78 	};

    79 

    80 #endif // GIFCONVERT_H