examples/Multimedia/ICL/ICLCodec/PNGConvert.h

// PngConvert.H
//
// Copyright (c) 2007-2009 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:
//
// Description:
//
//

#ifndef __PNGCONVERT_H__
#define __PNGCONVERT_H__

#include <icl/imageplugin.h>

#include "PNGCodec.h"

//
// PNG decoder class
//
class CPngDecoder : public CImageDecoderPlugin
        {
public:
        // Construction
        static CPngDecoder* NewL();
        ~CPngDecoder();

private:
        // from CImageDecoderPlugin
        
        // Gets the image type and sub-type for a given frame of the image that
        // has just been decoded.
        virtual void ImageType(TInt aFrameNumber, TUid& aImageType, TUid& aImageSubType) const; 
        // Gets text descriptions of image properties
        CFrameInfoStrings* FrameInfoStringsL(RFs& aFs, TInt aFrameNumber);
        // Scans the image header.
        void ScanDataL();

private:
        CPngDecoder();
        void ReadFormatL();
        };

//
// PNG encoder class
//
class CPngEncoder : public CImageEncoderPlugin
        {
public:
        // Construction
        static CPngEncoder* NewL();
         ~CPngEncoder();

private:
        // from CImageEncoderPlugin

        // Sets up the codec to encode the frame
        void PrepareEncoderL(const CFrameImageData* aFrameImageData);
        // Update header (not used)
        void UpdateHeaderL() {};

private:
        CPngEncoder();
        };

#endif // __PNGCONVERT_H__

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