sl@0: // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #include <ezstream.h>
sl@0: 
sl@0: CEZZStream::CEZZStream() : iOutputPointer(NULL), iOutputBufferLength(0)
sl@0: 	{
sl@0: 
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Set the stream's input buffer
sl@0: 
sl@0: @param aInputData the input buffer for this stream
sl@0: */
sl@0: EXPORT_C void CEZZStream::SetInput(const TDesC8& aInputData)
sl@0: 	{	
sl@0: 	iStream.avail_in = aInputData.Size();
sl@0: 	iStream.next_in = STATIC_CAST(Bytef* ,CONST_CAST(TUint8 *,aInputData.Ptr()));
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Set the stream's output buffer
sl@0: 
sl@0: @param aOutputData the output buffer for this stream
sl@0: */
sl@0: EXPORT_C void CEZZStream::SetOutput(TDes8& aOutputData)
sl@0: 	{
sl@0: 	iOutputPointer = STATIC_CAST(Bytef* ,CONST_CAST(TUint8 *,aOutputData.Ptr()));
sl@0: 	iOutputBufferLength = aOutputData.MaxSize();
sl@0: 	iStream.avail_out = iOutputBufferLength;
sl@0: 	iStream.next_out = iOutputPointer;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Return the progress of the current operation - that is the percentage of bytes written / read
sl@0: 
sl@0: @param aTotalLength the total number of bytes to read / write
sl@0: @return the progress as a percentage - the number of bytes written / read out of the total target
sl@0: */
sl@0: EXPORT_C TInt CEZZStream::Progress(TInt aTotalLength) const
sl@0: 	{
sl@0: 	return (aTotalLength == 0) ? 100 : ((iStream.total_in  * 100) / aTotalLength);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Return the total number of bytes output so far
sl@0: 
sl@0: @return the total number of bytes output so far
sl@0: */
sl@0: EXPORT_C TInt CEZZStream::TotalOut() const
sl@0: 	{
sl@0: 	return iStream.total_out;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Return the total number of input bytes read so far
sl@0: 
sl@0: @return the total number of input bytes read so far
sl@0: */
sl@0: EXPORT_C TInt CEZZStream::TotalIn() const
sl@0: 	{
sl@0: 	return iStream.total_in;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Return the value of the uncompressed data
sl@0: 
sl@0: @return the value of the uncompressed data
sl@0: */
sl@0: EXPORT_C TInt32 CEZZStream::Adler32() const
sl@0: 	{
sl@0: 	return iStream.adler;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Return the number of bytes available at the next input byte
sl@0: 
sl@0: @return the number of bytes available at the next input byte
sl@0: */
sl@0: EXPORT_C TInt CEZZStream::AvailIn() const
sl@0: 	{
sl@0: 	return iStream.avail_in;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Return the remaining free space at next output byte target
sl@0: 
sl@0: @return the remaining free space at next output byte target
sl@0: */
sl@0: EXPORT_C TInt CEZZStream::AvailOut() const
sl@0: 	{
sl@0: 	return iStream.avail_out;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Return a decriptor pointer to the output buffer
sl@0: 
sl@0: @return a decriptor pointer to the output buffer
sl@0: */
sl@0: EXPORT_C TPtrC8 CEZZStream::OutputDescriptor() const
sl@0: 	{
sl@0: 	return TPtrC8(iOutputPointer,iOutputBufferLength - iStream.avail_out);
sl@0: 	}
sl@0: