author | timothy.murphy@nokia.com |
Mon, 30 Nov 2009 17:47:19 +0000 | |
branch | wip |
changeset 23 | e9dc34adfa0e |
parent 0 | 044383f39525 |
permissions | -rw-r--r-- |
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// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// Class for inflater |
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// @internalComponent |
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// @released |
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// |
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// |
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#ifndef __INFLATE_H__ |
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#define __INFLATE_H__ |
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#include "e32defwrap.h" |
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#include "huffman.h" |
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const TInt KDeflateMinLength=3; |
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const TInt KDeflateMaxDistance=(1<<KDeflateDistanceMag); |
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const TInt KDeflateDistCodeBase=0x200; |
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/** |
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Class for inflater |
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@internalComponent |
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@released |
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*/ |
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class CInflater |
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{ |
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public: |
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enum {EBufSize = 0x800, ESafetyZone=8}; |
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public: |
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static CInflater* NewLC(TBitInput& aInput); |
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~CInflater(); |
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TInt ReadL(TUint8* aBuffer,TInt aLength); |
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TInt SkipL(TInt aLength); |
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private: |
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CInflater(TBitInput& aInput); |
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void ConstructL(); |
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void InitL(); |
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TInt InflateL(); |
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private: |
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TBitInput* iBits; |
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const TUint8* iRptr; // partial segment |
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TInt iLen; |
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const TUint8* iAvail; // available data |
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const TUint8* iLimit; |
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TEncoding* iEncoding; |
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TUint8* iOut; // circular buffer for distance matches |
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TUint8 iHuff[EBufSize+ESafetyZone]; // huffman data |
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}; |
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#endif |
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