1                 : /******************************************************************************
       2                 :  * $Id: jp2userbox.cpp 10645 2007-01-18 02:22:39Z warmerdam $
       3                 :  *
       4                 :  * Project:  GDAL ECW Driver
       5                 :  * Purpose:  JP2UserBox implementation - arbitrary box read/write.
       6                 :  * Author:   Frank Warmerdam, warmerdam@pobox.com
       7                 :  *
       8                 :  ******************************************************************************
       9                 :  * Copyright (c) 2005, Frank Warmerdam <warmerdam@pobox.com>
      10                 :  *
      11                 :  * Permission is hereby granted, free of charge, to any person obtaining a
      12                 :  * copy of this software and associated documentation files (the "Software"),
      13                 :  * to deal in the Software without restriction, including without limitation
      14                 :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      15                 :  * and/or sell copies of the Software, and to permit persons to whom the
      16                 :  * Software is furnished to do so, subject to the following conditions:
      17                 :  *
      18                 :  * The above copyright notice and this permission notice shall be included
      19                 :  * in all copies or substantial portions of the Software.
      20                 :  *
      21                 :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      22                 :  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      23                 :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      24                 :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      25                 :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      26                 :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      27                 :  * DEALINGS IN THE SOFTWARE.
      28                 :  ****************************************************************************/
      29                 : 
      30                 : #include "jp2userbox.h"
      31                 : 
      32                 : CPL_CVSID("$Id: jp2userbox.cpp 10645 2007-01-18 02:22:39Z warmerdam $");
      33                 : 
      34                 : /************************************************************************/
      35                 : /*                             JP2UserBox()                             */
      36                 : /************************************************************************/
      37                 : 
      38              32 : JP2UserBox::JP2UserBox()
      39                 : {
      40              32 :     pabyData = NULL;
      41              32 :     nDataLength = 0;
      42                 : 
      43              32 :     m_nTBox = 0;
      44              32 : }
      45                 : 
      46                 : /************************************************************************/
      47                 : /*                            ~JP2UserBox()                             */
      48                 : /************************************************************************/
      49                 : 
      50              64 : JP2UserBox::~JP2UserBox()
      51                 : 
      52                 : {
      53              32 :     if( pabyData != NULL )
      54                 :     {
      55              32 :         CPLFree( pabyData );
      56              32 :         pabyData = NULL;
      57                 :     }
      58              64 : }
      59                 : 
      60                 : /************************************************************************/
      61                 : /*                              SetData()                               */
      62                 : /************************************************************************/
      63                 : 
      64              32 : void JP2UserBox::SetData( int nLengthIn, const unsigned char *pabyDataIn )
      65                 : 
      66                 : {
      67              32 :     if( pabyData != NULL )
      68               0 :         CPLFree( pabyData );
      69                 : 
      70              32 :     nDataLength = nLengthIn;
      71              32 :     pabyData = (unsigned char *) CPLMalloc(nDataLength);
      72              32 :     memcpy( pabyData, pabyDataIn, nDataLength );
      73                 : 
      74              32 :     m_bValid = true;
      75              32 : }
      76                 : 
      77                 : /************************************************************************/
      78                 : /*                            UpdateXLBox()                             */
      79                 : /************************************************************************/
      80                 : 
      81              26 : void JP2UserBox::UpdateXLBox()
      82                 : 
      83                 : {
      84              26 :     m_nXLBox = 8 + nDataLength;
      85              26 :     m_nLDBox = nDataLength;
      86              26 : }
      87                 : 
      88                 : /************************************************************************/
      89                 : /*                               Parse()                                */
      90                 : /*                                                                      */
      91                 : /*      Parse box, and data contents from file into memory.             */
      92                 : /************************************************************************/
      93                 : 
      94               0 : CNCSError JP2UserBox::Parse( class CNCSJP2File &JP2File, 
      95                 :                              CNCSJPCIOStream &Stream )
      96                 : 
      97                 : {
      98               0 :     CNCSError Error = NCS_SUCCESS;
      99                 :     
     100                 :     return Error;
     101                 : }
     102                 : 
     103                 : /************************************************************************/
     104                 : /*                              UnParse()                               */
     105                 : /*                                                                      */
     106                 : /*      Write box meta information, and data to file.                   */
     107                 : /************************************************************************/
     108                 : 
     109              26 : CNCSError JP2UserBox::UnParse( class CNCSJP2File &JP2File, 
     110                 :                                CNCSJPCIOStream &Stream )
     111                 : 
     112                 : {
     113              26 :     CNCSError Error = NCS_SUCCESS;
     114                 : 
     115              26 :     if( m_nTBox == 0 )
     116                 :     {
     117               0 :         Error = NCS_UNKNOWN_ERROR;
     118                 :         CPLError( CE_Failure, CPLE_AppDefined, 
     119               0 :                   "No box type set in JP2UserBox::UnParse()" );
     120               0 :         return Error;
     121                 :     }
     122                 : 
     123              26 :     Error = CNCSJP2Box::UnParse(JP2File, Stream);
     124                 : 
     125                 : //    NCSJP2_CHECKIO_BEGIN(Error, Stream);
     126              26 :     Stream.Write(pabyData, nDataLength);
     127                 : //    NCSJP2_CHECKIO_END();
     128                 : 
     129              26 :     return Error;
     130            1140 : }