1 // Copyright (c) 2003-2009 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 //

    15 

    16 #ifndef __TESTASYNCCONVERT_H__

    17 #define __TESTASYNCCONVERT_H__

    18 

    19 #include "imageconversion.h"

    20 #include "TestAsyncCodec.h"

    21 #include <icl/imageplugin.h>

    22 

    23 // forward refs

    24 class CTestAsyncReadCodec;

    25 class CTestAsyncWriteCodec;

    26 

    27 // MAsyncSchedulerObserver

    28 // mixin class to handle callbacks from an CAsyncScheduler object

    29 class MAsyncSchedulerObserver

    30 	{

    31 public:

    32 	virtual void MasoProcessL(TInt error) = 0;

    33 	};

    34 

    35 class CAsyncScheduler : public CActive

    36 	{

    37 public:

    38 	CAsyncScheduler(MAsyncSchedulerObserver& aSchedulerObserver);

    39 	void Start();

    40 

    41 	// From CActive

    42 	virtual void RunL();

    43 	virtual void DoCancel() {};

    44 

    45 private:

    46 	MAsyncSchedulerObserver& iSchedulerObserver;

    47 	};

    48 

    49 

    50 class CTestAsyncDecoder : public CImageDecoderPlugin, 

    51 	public MAsyncSchedulerObserver

    52 	{

    53 public:

    54 	static CTestAsyncDecoder* NewL();

    55 	virtual ~CTestAsyncDecoder();

    56 

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

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

    59 

    60 	// From CImageDecoderPlugin

    61 	virtual void DoConvert();

    62 	virtual TInt NumberOfImageComments() const;

    63 	virtual HBufC* ImageCommentL(TInt aCommentNumber) const;

    64 	virtual TInt NumberOfFrameComments(TInt aFrameNumber) const;

    65 	virtual HBufC* FrameCommentL(TInt aFrameNumber, TInt aCommentNumber) const;

    66 	void ScanDataL();

    67 	virtual void Cleanup();

    68 

    69 	// from MAsyncSchedulerObserver

    70 	virtual void MasoProcessL(TInt aError);

    71 

    72 	// callback from CTestAsyncReadCodec to indicate completion

    73 	// of CTestAsyncReadCodec::ProcessFrameL()

    74 	void ProcessFrameComplete(TInt aError);

    75 

    76 private:

    77 	CTestAsyncDecoder();

    78 	void ConstructL();

    79 

    80 

    81 private:

    82 	enum TDecodeState

    83 		{

    84 		EDecodeInit,

    85 		EDecodeInProgress,

    86 		EDecodeFinished

    87 		};

    88 	TDecodeState iDecodeState;

    89 	

    90 	CTestAsyncReadCodec* iImageReadCodec;	// not owned

    91 	TInt iDecodeIterations;

    92 

    93 	TInt iMaxValue;

    94 	TBool iReadHeaders;

    95 

    96 	CAsyncScheduler* iScheduler;

    97 

    98 	TInt iError;

    99 	};

   100 

   101 

   102 class CTestAsyncEncoder : public CImageEncoderPlugin, public MAsyncSchedulerObserver

   103 	{

   104 public:

   105 	static CTestAsyncEncoder* NewL();

   106 	virtual ~CTestAsyncEncoder();

   107 

   108 	// From CImageEncoderPlugin

   109 	virtual void DoConvert();

   110 	void PrepareEncoderL(const CFrameImageData* aFrameImageData);

   111 	virtual void Cleanup();

   112 	void UpdateHeaderL();

   113 

   114 	// from MAsyncSchedulerObserver

   115 	virtual void MasoProcessL(TInt aError);

   116 

   117 	// callback from CTestAsyncWriteCodec to indicate completion

   118 	// of CTestAsyncWriteCodec::ProcessFrameL()

   119 	void ProcessFrameComplete(TInt aError);

   120 

   121 private:

   122 	CTestAsyncEncoder();

   123 	void ConstructL();

   124 

   125 

   126 private:

   127 	enum TEncodeState

   128 		{

   129 		EEncodeInit,

   130 		EEncodeInProgress,

   131 		EEncodeFinished

   132 		};

   133 	TEncodeState iEncodeState;

   134 	

   135 	CTestAsyncWriteCodec* iImageWriteCodec;	// not owned

   136 	TInt iEncodeIterations;

   137 

   138 	TInt iMaxValue;

   139 	TBool iReadHeaders;

   140 

   141 	CAsyncScheduler* iScheduler;

   142 

   143 	TInt iError;

   144 	};

   145 

   146 

   147 #endif

   148