Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Purpose:  Implementation of the CPCIDSK_PCT class.
       4             :  *
       5             :  ******************************************************************************
       6             :  * Copyright (c) 2009
       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/cpcidskpct.h"
      30             : #include <cassert>
      31             : #include <cstring>
      32             : 
      33             : using namespace PCIDSK;
      34             : 
      35             : /************************************************************************/
      36             : /*                            CPCIDSK_PCT()                             */
      37             : /************************************************************************/
      38             : 
      39           2 : CPCIDSK_PCT::CPCIDSK_PCT( PCIDSKFile *fileIn, int segmentIn,
      40           2 :                           const char *segment_pointer )
      41           2 :         : CPCIDSKSegment( fileIn, segmentIn, segment_pointer )
      42             : 
      43             : {
      44           2 : }
      45             : 
      46             : /************************************************************************/
      47             : /*                           ~CPCIDSKGeoref()                           */
      48             : /************************************************************************/
      49             : 
      50           4 : CPCIDSK_PCT::~CPCIDSK_PCT()
      51             : 
      52             : {
      53           4 : }
      54             : 
      55             : /************************************************************************/
      56             : /*                              ReadPCT()                               */
      57             : /************************************************************************/
      58             : 
      59           1 : void CPCIDSK_PCT::ReadPCT( unsigned char pct[768] )
      60             : 
      61             : {
      62           2 :     PCIDSKBuffer seg_data;
      63             : 
      64           1 :     seg_data.SetSize( 768*4 );
      65             : 
      66           1 :     ReadFromFile( seg_data.buffer, 0, 768*4 );
      67             : 
      68             :     int i;
      69         257 :     for( i = 0; i < 256; i++ )
      70             :     {
      71         256 :         pct[  0+i] = (unsigned char) seg_data.GetInt(   0+i*4, 4 );
      72         256 :         pct[256+i] = (unsigned char) seg_data.GetInt(1024+i*4, 4 );
      73         256 :         pct[512+i] = (unsigned char) seg_data.GetInt(2048+i*4, 4 );
      74             :     }
      75           1 : }
      76             : 
      77             : /************************************************************************/
      78             : /*                              WritePCT()                              */
      79             : /************************************************************************/
      80             : 
      81           1 : void CPCIDSK_PCT::WritePCT( unsigned char pct[768] )
      82             : 
      83             : {
      84           2 :     PCIDSKBuffer seg_data;
      85             : 
      86           1 :     seg_data.SetSize( 768*4 );
      87             : 
      88           1 :     ReadFromFile( seg_data.buffer, 0, 768*4 );
      89             : 
      90             :     int i;
      91         257 :     for( i = 0; i < 256; i++ )
      92             :     {
      93         256 :         seg_data.Put( (int) pct[  0+i],   0+i*4, 4 );
      94         256 :         seg_data.Put( (int) pct[256+i],1024+i*4, 4 );
      95         256 :         seg_data.Put( (int) pct[512+i],2048+i*4, 4 );
      96             :     }
      97             : 
      98           1 :     WriteToFile( seg_data.buffer, 0, 768*4 );
      99           1 : }