Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Purpose:  Implementation of the CPCIDSK_BPCT class.
       4             :  *
       5             :  ******************************************************************************
       6             :  * Copyright (c) 2015
       7             :  * PCI Geomatics, 90 Allstate Parkway, Markham, Ontario, Canada.
       8             : *
       9             :  * Permission is hereby granted, free of charge, to any person obtaining a
      10             :  * copy of this software and associated documentation files (the "Software"),
      11             :  * to deal in the Software without restriction, including without limitation
      12             :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      13             :  * and/or sell copies of the Software, and to permit persons to whom the
      14             :  * Software is furnished to do so, subject to the following conditions:
      15             :  *
      16             :  * The above copyright notice and this permission notice shall be included
      17             :  * in all copies or substantial portions of the Software.
      18             :  *
      19             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      20             :  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      21             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      22             :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      23             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      24             :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      25             :  * DEALINGS IN THE SOFTWARE.
      26             :  ****************************************************************************/
      27             : 
      28             : #include "pcidsk_exception.h"
      29             : #include "segment/cpcidskbpct.h"
      30             : #include <cassert>
      31             : #include <cstring>
      32             : #include <sstream>
      33             : #include <cmath>
      34             : #include <stdlib.h>
      35             : #include "core/pcidsk_utils.h"
      36             : 
      37             : using namespace PCIDSK;
      38             : 
      39             : /************************************************************************/
      40             : /*                            CPCIDSK_BPCT()                            */
      41             : /************************************************************************/
      42           0 : CPCIDSK_BPCT::CPCIDSK_BPCT( PCIDSKFile *fileIn, int segmentIn,
      43           0 :                           const char *segment_pointer )
      44           0 :         : CPCIDSKSegment( fileIn, segmentIn, segment_pointer )
      45             : 
      46             : {
      47           0 : }
      48             : 
      49             : /************************************************************************/
      50             : /*                           ~CPCIDSK_BPCT()                            */
      51             : /************************************************************************/
      52           0 : CPCIDSK_BPCT::~CPCIDSK_BPCT()
      53             : 
      54             : {
      55           0 : }
      56             : 
      57             : /************************************************************************/
      58             : /*                              ReadBPCT()                              */
      59             : /************************************************************************/
      60           0 : void CPCIDSK_BPCT::ReadBPCT( std::vector<BPCTEntry>& vBPCT )
      61             : 
      62             : {
      63           0 :     PCIDSKBuffer seg_data;
      64             : 
      65           0 :     seg_data.SetSize( (int) GetContentSize() );
      66             : 
      67           0 :     ReadFromFile( seg_data.buffer, 0, seg_data.buffer_size );
      68             : 
      69           0 :     std::istringstream ss(seg_data.buffer);
      70             : 
      71           0 :     vBPCT.clear();
      72             : 
      73             :     // the first token is interpolation type (not used)
      74             :     std::size_t nInterp;
      75           0 :     if(!(ss >> nInterp))
      76           0 :         throw PCIDSKException("Invalid BPCT segment.");
      77             : 
      78             :     // the second token is the number of entries
      79             :     std::size_t nCount;
      80           0 :     if(!(ss >> nCount)|| nCount > 1024 * 1024 /* arbitrary limit */)
      81           0 :         throw PCIDSKException("Invalid BPCT segment.");
      82             : 
      83             : 
      84           0 :     for(std::size_t n=0; n<nCount; ++n)
      85             :     {
      86           0 :         BPCTEntry oEntry;
      87             : 
      88           0 :         if(!(ss >> oEntry.boundary))
      89           0 :             throw PCIDSKException("Invalid BPCT segment.");
      90             : 
      91             :         int nTemp;
      92           0 :         if(!(ss >> nTemp) || nTemp < 0 || nTemp > 255)
      93           0 :             throw PCIDSKException("Invalid BPCT segment.");
      94           0 :         oEntry.red = (unsigned char) nTemp;
      95             : 
      96           0 :         if(!(ss >> nTemp) || nTemp < 0 || nTemp > 255)
      97           0 :             throw PCIDSKException("Invalid BPCT segment.");
      98           0 :         oEntry.green = (unsigned char) nTemp;
      99             : 
     100           0 :         if(!(ss >> nTemp) || nTemp < 0 || nTemp > 255)
     101           0 :             throw PCIDSKException("Invalid BPCT segment.");
     102           0 :         oEntry.blue = (unsigned char) nTemp;
     103             : 
     104           0 :         vBPCT.push_back(oEntry);
     105             : 
     106             :     }
     107           0 : }
     108             : 
     109             : /************************************************************************/
     110             : /*                              WriteBPCT()                             */
     111             : /************************************************************************/
     112           0 : void CPCIDSK_BPCT::WriteBPCT( const std::vector<BPCTEntry>& vBPCT )
     113             : 
     114             : {
     115           0 :     std::stringstream oSS;
     116             : 
     117           0 :     oSS << INTERP_LINEAR << " " << vBPCT.size();
     118           0 :     oSS.precision(15);
     119             : 
     120           0 :     for(std::vector<BPCTEntry>::const_iterator it = vBPCT.begin();
     121           0 :         it != vBPCT.end();
     122           0 :         ++it)
     123             :     {
     124           0 :         if(it->boundary == std::floor(it->boundary))
     125           0 :             oSS << " " << (int) it->boundary;
     126             :         else
     127           0 :             oSS << " " << it->boundary;
     128           0 :         oSS << " " << (unsigned int) it->red;
     129           0 :         oSS << " " << (unsigned int) it->green;
     130           0 :         oSS << " " << (unsigned int) it->blue;
     131             :     }
     132             : 
     133           0 :     std::string sData = oSS.str();
     134           0 :     WriteToFile( sData.c_str(), 0, sData.size() );
     135           0 : }