1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/compressionlibs/ziplib/test/oldezlib/inc/OldEZDecompressor.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,96 @@
     1.4 +// Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// EZLib: DECOMPRESSOR.H
    1.18 +// Declaration for Decompression class
    1.19 +// 
    1.20 +//
    1.21 +
    1.22 +#ifndef __EZLIB_EZDECOMPRESSOR_H__
    1.23 +#define __EZLIB_EZDECOMPRESSOR_H__
    1.24 +
    1.25 +#include <e32base.h>
    1.26 +#include "OldEZstream.h"
    1.27 +#include "OldEZBufman.h"
    1.28 +
    1.29 +/**
    1.30 +The CEZDecompressor class provides in-memory de-compression functions, including integrity checks of the compressed data.
    1.31 +This version of the library supports only one compression / de-compression method (deflation / inflation).  De-compression
    1.32 +can be done in a single step (using DecompressL()) if the buffers are large enough (for example if an input file is mmap'ed),
    1.33 +or can be done by repeated calls of the InflateL() function.  The source data is de-compressed to the target buffer (both source 
    1.34 +and target contained within the buffer manager argument).
    1.35 +
    1.36 +@publishedAll
    1.37 +@released
    1.38 +*/
    1.39 +namespace TOLDEZLIB
    1.40 +{
    1.41 +	
    1.42 +class CEZDecompressor : public CEZZStream
    1.43 +	{
    1.44 +public:
    1.45 +	/** Decompression panic values */
    1.46 +	enum 
    1.47 +		{
    1.48 +		EInflateInitlialiserError = EUnexpected + 1,
    1.49 +		EInflateVersionError,
    1.50 +		EInflateTerminated,
    1.51 +		EInflateDictionaryError
    1.52 +		};
    1.53 +		
    1.54 +	/** Window Bits - the base two logarithm of the window size (the size of the history buffer) */
    1.55 +	enum
    1.56 +		{
    1.57 +		EMaxWBits = MAX_WBITS
    1.58 +		};
    1.59 +
    1.60 +public:
    1.61 +	~CEZDecompressor();
    1.62 +
    1.63 +	IMPORT_C static CEZDecompressor* NewLC(MEZBufferManager& aInit, TInt aWindowBits = EMaxWBits);
    1.64 +	IMPORT_C static CEZDecompressor* NewL(MEZBufferManager& aInit, TInt aWindowBits = EMaxWBits);
    1.65 +
    1.66 +	IMPORT_C static CEZDecompressor* NewLC(MEZBufferManager& aInit, const TDesC8& aDictionary, TInt aWindowBits = EMaxWBits);
    1.67 +	IMPORT_C static CEZDecompressor* NewL(MEZBufferManager& aInit, const TDesC8& aDictionary, TInt aWindowBits = EMaxWBits);
    1.68 +
    1.69 +
    1.70 +	IMPORT_C void ResetL(MEZBufferManager& aInit);
    1.71 +	IMPORT_C TBool InflateL();
    1.72 +
    1.73 +	IMPORT_C static void DecompressL(TDes8 &aDestination, const TDesC8 &aSource);
    1.74 +
    1.75 +	private:
    1.76 +		enum TInflationState
    1.77 +			{
    1.78 +			ENoFlush,
    1.79 +			EFinalize,
    1.80 +			ETerminated
    1.81 +			};
    1.82 +
    1.83 +	private:
    1.84 +		void SetDictionaryL();
    1.85 +		CEZDecompressor(MEZBufferManager* aInit);
    1.86 +		CEZDecompressor(MEZBufferManager* aInit, const TUint8 *aDictionary, TInt aLength);
    1.87 +		void ConstructL(TInt aWindowBits);
    1.88 +
    1.89 +	private:
    1.90 +		MEZBufferManager* iBufferInit;
    1.91 +		TInflationState iInflationState;
    1.92 +		const TUint8* iDictionary;
    1.93 +		TInt iDictionaryLength;
    1.94 +	};
    1.95 +
    1.96 +} //namespace TOLDEZLIB
    1.97 +#endif
    1.98 +
    1.99 +