1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/compressionlibs/ziplib/src/ezlib/zstream.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,117 @@
     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 +//
    1.18 +
    1.19 +#include <ezstream.h>
    1.20 +
    1.21 +CEZZStream::CEZZStream() : iOutputPointer(NULL), iOutputBufferLength(0)
    1.22 +	{
    1.23 +
    1.24 +	}
    1.25 +
    1.26 +/**
    1.27 +Set the stream's input buffer
    1.28 +
    1.29 +@param aInputData the input buffer for this stream
    1.30 +*/
    1.31 +EXPORT_C void CEZZStream::SetInput(const TDesC8& aInputData)
    1.32 +	{	
    1.33 +	iStream.avail_in = aInputData.Size();
    1.34 +	iStream.next_in = STATIC_CAST(Bytef* ,CONST_CAST(TUint8 *,aInputData.Ptr()));
    1.35 +	}
    1.36 +
    1.37 +/**
    1.38 +Set the stream's output buffer
    1.39 +
    1.40 +@param aOutputData the output buffer for this stream
    1.41 +*/
    1.42 +EXPORT_C void CEZZStream::SetOutput(TDes8& aOutputData)
    1.43 +	{
    1.44 +	iOutputPointer = STATIC_CAST(Bytef* ,CONST_CAST(TUint8 *,aOutputData.Ptr()));
    1.45 +	iOutputBufferLength = aOutputData.MaxSize();
    1.46 +	iStream.avail_out = iOutputBufferLength;
    1.47 +	iStream.next_out = iOutputPointer;
    1.48 +	}
    1.49 +
    1.50 +/**
    1.51 +Return the progress of the current operation - that is the percentage of bytes written / read
    1.52 +
    1.53 +@param aTotalLength the total number of bytes to read / write
    1.54 +@return the progress as a percentage - the number of bytes written / read out of the total target
    1.55 +*/
    1.56 +EXPORT_C TInt CEZZStream::Progress(TInt aTotalLength) const
    1.57 +	{
    1.58 +	return (aTotalLength == 0) ? 100 : ((iStream.total_in  * 100) / aTotalLength);
    1.59 +	}
    1.60 +
    1.61 +/**
    1.62 +Return the total number of bytes output so far
    1.63 +
    1.64 +@return the total number of bytes output so far
    1.65 +*/
    1.66 +EXPORT_C TInt CEZZStream::TotalOut() const
    1.67 +	{
    1.68 +	return iStream.total_out;
    1.69 +	}
    1.70 +
    1.71 +/**
    1.72 +Return the total number of input bytes read so far
    1.73 +
    1.74 +@return the total number of input bytes read so far
    1.75 +*/
    1.76 +EXPORT_C TInt CEZZStream::TotalIn() const
    1.77 +	{
    1.78 +	return iStream.total_in;
    1.79 +	}
    1.80 +
    1.81 +/**
    1.82 +Return the value of the uncompressed data
    1.83 +
    1.84 +@return the value of the uncompressed data
    1.85 +*/
    1.86 +EXPORT_C TInt32 CEZZStream::Adler32() const
    1.87 +	{
    1.88 +	return iStream.adler;
    1.89 +	}
    1.90 +
    1.91 +/**
    1.92 +Return the number of bytes available at the next input byte
    1.93 +
    1.94 +@return the number of bytes available at the next input byte
    1.95 +*/
    1.96 +EXPORT_C TInt CEZZStream::AvailIn() const
    1.97 +	{
    1.98 +	return iStream.avail_in;
    1.99 +	}
   1.100 +
   1.101 +/**
   1.102 +Return the remaining free space at next output byte target
   1.103 +
   1.104 +@return the remaining free space at next output byte target
   1.105 +*/
   1.106 +EXPORT_C TInt CEZZStream::AvailOut() const
   1.107 +	{
   1.108 +	return iStream.avail_out;
   1.109 +	}
   1.110 +
   1.111 +/**
   1.112 +Return a decriptor pointer to the output buffer
   1.113 +
   1.114 +@return a decriptor pointer to the output buffer
   1.115 +*/
   1.116 +EXPORT_C TPtrC8 CEZZStream::OutputDescriptor() const
   1.117 +	{
   1.118 +	return TPtrC8(iOutputPointer,iOutputBufferLength - iStream.avail_out);
   1.119 +	}
   1.120 +