1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/graphics/fbs/fontandbitmapserver/sfbs/CompressionBookmark.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,56 @@
     1.4 +// Copyright (c) 2003-2009 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 +// CompressionBookmark
    1.18 +// 
    1.19 +//
    1.20 +
    1.21 +#ifndef __COMPRESSIONBOOKMARK_H_
    1.22 +#define __COMPRESSIONBOOKMARK_H_
    1.23 +
    1.24 +class TCompressionBookMark
    1.25 +	{
    1.26 +public:
    1.27 +	TCompressionBookMark();
    1.28 +
    1.29 +public:
    1.30 +	inline void CalculateCheckSum();
    1.31 +	inline TBool IsCheckSumOk() const;
    1.32 +	TInt iSrcDataOffset;
    1.33 +	TInt iCursorPos;
    1.34 +	TUint32 iCheckSum;
    1.35 +	TInt iCheckSum2;
    1.36 +
    1.37 +	};
    1.38 +
    1.39 +inline TCompressionBookMark::TCompressionBookMark() :
    1.40 +	iSrcDataOffset(0), iCursorPos(0)
    1.41 +	{
    1.42 +	CalculateCheckSum();
    1.43 +	}
    1.44 +
    1.45 +inline void TCompressionBookMark::CalculateCheckSum()
    1.46 +	{
    1.47 +	iCheckSum=((TUint32) iSrcDataOffset)^((TUint32) iCursorPos);
    1.48 +	iCheckSum2=(1-iSrcDataOffset)+(1-iCursorPos);
    1.49 +	}
    1.50 +
    1.51 +inline TBool TCompressionBookMark::IsCheckSumOk() const
    1.52 +	{
    1.53 +	TBool check1=(iCheckSum==(((TUint32) iSrcDataOffset)^((TUint32) iCursorPos)));
    1.54 +	TBool check2=(iCheckSum2==((1-iSrcDataOffset)+(1-iCursorPos)));
    1.55 +	return (check1 && check2);
    1.56 +	}
    1.57 +
    1.58 +
    1.59 +#endif//__COMPRESSIONBOOKMARK_H_