1 /*

     2 * Copyright (c) 1997-1999 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 

    19 

    20 #if !defined(__RESCOMP_H__)

    21 #define __RESCOMP_H__

    22 

    23 #include <e32base.h>

    24 #include <f32file.h>

    25 #include <s32file.h>

    26 

    27 class CDictArray;

    28 class CResEntry;

    29 

    30 class TBitWriter

    31 	{

    32 public:

    33 	TBitWriter(RWriteStream& aStream);

    34 	void WriteL(TInt aValue, TInt aBits);

    35 	void FlushL();

    36 private:

    37 	RWriteStream& iStream;

    38 	TInt iValue;

    39 	TInt iBitsWritten;

    40 	};

    41 

    42 class CResComp : public CBase

    43 	{

    44 public:

    45 	CResComp(CConsoleBase* aConsole);

    46 	~CResComp();

    47 	void LoadFileL(RFs& aFs, const TDesC& aFileName);

    48 	void CompressL();

    49 	void WriteFileL(RFs& aFs, const TDesC& aName);

    50 	TPtrC8 Resource(TInt aRes);

    51 	TInt FindInResources(TDesC8& aBuf, TInt aMax);

    52 	TInt OriginalFileSize();

    53 	TInt CompressedSize();

    54 	void DisplayStats();

    55 	TInt ResourceSize();

    56 	TBool IsValid();

    57 private:

    58 	void LoadBAFLCompressedFileL(RFs& aFs, const TDesC& aName);

    59 	void LoadUnCompressedFileL(RFs& aFs, const TDesC& aName);

    60 	TBool FileIsBAFLCompressedL(RFs& aFs, const TDesC& aName);

    61 

    62 	void OptimizeDict();

    63 	void FindEmbeddedDict(TDesC8& aMatch, TInt aStart);

    64 	void WriteHeaderL(RWriteStream& aStream);

    65 	void WriteDictionaryL(RWriteStream& aStream);

    66 	void WriteDictionaryHeaderL(RWriteStream& aStream);

    67 	void WriteDictionaryIndexL(RWriteStream& aStream);

    68 	void WriteDictionaryDataL(RWriteStream& aStream);

    69 	void WriteResourceL(RWriteStream& aStream);

    70 	void WriteResourceIndexL(RWriteStream& aStream);

    71 	void WriteResourceDataL(RWriteStream& aStream);

    72 	TInt CompressResourcesL(TInt aMaxDictEntries);

    73 	TInt AttemptCompressionL(TInt aMaxDictEntries);

    74 	void CheckForLongDataStringsL();

    75 private:

    76 	CConsoleBase* iConsole;

    77 	TUint8* iResData;

    78 	CDictArray* iDict;

    79 	TUint16* iResIndex;

    80 	CArrayPtrFlat<CResEntry>* iResArray;

    81 	TInt iResources;

    82 	TInt iFileLength;

    83 	TInt iCompressedSize;

    84 	TInt iLargestResourceSize;

    85 	TInt iMaxEntries;

    86 	TInt iBitsForDict;

    87 	TInt iBestCompression;

    88 	TInt iBestSize;

    89 	TInt iOriginalCompressedSize;

    90 public:

    91 	TBuf<80> iConOutput;

    92 	};

    93 

    94 

    95 #endif