// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

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

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#include <ezstream.h>

CEZZStream::CEZZStream() : iOutputPointer(NULL), iOutputBufferLength(0)

	{

	}

/**

Set the stream's input buffer

@param aInputData the input buffer for this stream

*/

EXPORT_C void CEZZStream::SetInput(const TDesC8& aInputData)

	{	

	iStream.avail_in = aInputData.Size();

	iStream.next_in = STATIC_CAST(Bytef* ,CONST_CAST(TUint8 *,aInputData.Ptr()));

	}

/**

Set the stream's output buffer

@param aOutputData the output buffer for this stream

*/

EXPORT_C void CEZZStream::SetOutput(TDes8& aOutputData)

	{

	iOutputPointer = STATIC_CAST(Bytef* ,CONST_CAST(TUint8 *,aOutputData.Ptr()));

	iOutputBufferLength = aOutputData.MaxSize();

	iStream.avail_out = iOutputBufferLength;

	iStream.next_out = iOutputPointer;

	}

/**

Return the progress of the current operation - that is the percentage of bytes written / read

@param aTotalLength the total number of bytes to read / write

@return the progress as a percentage - the number of bytes written / read out of the total target

*/

EXPORT_C TInt CEZZStream::Progress(TInt aTotalLength) const

	{

	return (aTotalLength == 0) ? 100 : ((iStream.total_in  * 100) / aTotalLength);

	}

/**

Return the total number of bytes output so far

@return the total number of bytes output so far

*/

EXPORT_C TInt CEZZStream::TotalOut() const

	{

	return iStream.total_out;

	}

/**

Return the total number of input bytes read so far

@return the total number of input bytes read so far

*/

EXPORT_C TInt CEZZStream::TotalIn() const

	{

	return iStream.total_in;

	}

/**

Return the value of the uncompressed data

@return the value of the uncompressed data

*/

EXPORT_C TInt32 CEZZStream::Adler32() const

	{

	return iStream.adler;

	}

/**

Return the number of bytes available at the next input byte

@return the number of bytes available at the next input byte

*/

EXPORT_C TInt CEZZStream::AvailIn() const

	{

	return iStream.avail_in;

	}

/**

Return the remaining free space at next output byte target

@return the remaining free space at next output byte target

*/

EXPORT_C TInt CEZZStream::AvailOut() const

	{

	return iStream.avail_out;

	}

/**

Return a decriptor pointer to the output buffer

@return a decriptor pointer to the output buffer

*/

EXPORT_C TPtrC8 CEZZStream::OutputDescriptor() const

	{

	return TPtrC8(iOutputPointer,iOutputBufferLength - iStream.avail_out);

	}