Symaptic: os/ossrv/compressionlibs/ziplib/src/ezlib/zstream.cpp@260cb5ec6c19

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

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

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

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    16 #include <ezstream.h>

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

    19 	{

    21 	}

    23 /**

    24 Set the stream's input buffer

    26 @param aInputData the input buffer for this stream

    27 */

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

    29 	{

    30 	iStream.avail_in = aInputData.Size();

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

    32 	}

    34 /**

    35 Set the stream's output buffer

    37 @param aOutputData the output buffer for this stream

    38 */

    39 EXPORT_C void CEZZStream::SetOutput(TDes8& aOutputData)

    40 	{

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

    42 	iOutputBufferLength = aOutputData.MaxSize();

    43 	iStream.avail_out = iOutputBufferLength;

    44 	iStream.next_out = iOutputPointer;

    45 	}

    47 /**

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

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

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

    52 */

    53 EXPORT_C TInt CEZZStream::Progress(TInt aTotalLength) const

    54 	{

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

    56 	}

    58 /**

    59 Return the total number of bytes output so far

    61 @return the total number of bytes output so far

    62 */

    63 EXPORT_C TInt CEZZStream::TotalOut() const

    64 	{

    65 	return iStream.total_out;

    66 	}

    68 /**

    69 Return the total number of input bytes read so far

    71 @return the total number of input bytes read so far

    72 */

    73 EXPORT_C TInt CEZZStream::TotalIn() const

    74 	{

    75 	return iStream.total_in;

    76 	}

    78 /**

    79 Return the value of the uncompressed data

    81 @return the value of the uncompressed data

    82 */

    83 EXPORT_C TInt32 CEZZStream::Adler32() const

    84 	{

    85 	return iStream.adler;

    86 	}

    88 /**

    89 Return the number of bytes available at the next input byte

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

    92 */

    93 EXPORT_C TInt CEZZStream::AvailIn() const

    94 	{

    95 	return iStream.avail_in;

    96 	}

    98 /**

    99 Return the remaining free space at next output byte target

   101 @return the remaining free space at next output byte target

   102 */

   103 EXPORT_C TInt CEZZStream::AvailOut() const

   104 	{

   105 	return iStream.avail_out;

   106 	}

   108 /**

   109 Return a decriptor pointer to the output buffer

   111 @return a decriptor pointer to the output buffer

   112 */

   113 EXPORT_C TPtrC8 CEZZStream::OutputDescriptor() const

   114 	{

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

   116 	}

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200
changeset 1	260cb5ec6c19
permissions	-rw-r--r--