text: /******************************************************************************
   * $Id$
   *
   * Project:  GeoTIFF Overview Builder
   * Purpose:  Mainline for building overviews in a TIFF file.
   * Author:   Frank Warmerdam, warmerdam@pobox.com
   *
   ******************************************************************************
   * Copyright (c) 1999, Frank Warmerdam
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included
   * in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   ******************************************************************************
   *
   * $Log$
   * Revision 1.8  2015-05-30 20:30:27  bfriesen
   * * contrib/addtiffo/addtiffo.c (main): Possibly address Coverity
   * 1024226 "Untrusted value as argument".
   *
   * Revision 1.7  2010-06-08 18:55:15  bfriesen
   * * contrib: Add an emacs formatting mode footer to all source files
   * so that emacs can be effectively used.
   *
   * Revision 1.6  2005/12/16 05:59:55  fwarmerdam
   * Major upgrade to support YCbCr subsampled jpeg images
   *
   * Revision 1.4  2004/09/21 13:31:23  dron
   * Add missed include string.h.
   *
   * Revision 1.3  2000/04/18 22:48:31  warmerda
   * Added support for averaging resampling
   *
   * Revision 1.2  2000/01/28 15:36:38  warmerda
   * pass TIFF handle instead of filename to overview builder
   *
   * Revision 1.1  1999/08/17 01:47:59  warmerda
   * New
   *
   * Revision 1.1  1999/03/12 17:46:32  warmerda
   * New
   *
   * Revision 1.2  1999/02/11 22:27:12  warmerda
   * Added multi-sample support
   *
   * Revision 1.1  1999/02/11 18:12:30  warmerda
   * New
   */
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include "tiffio.h"
  
  void TIFFBuildOverviews( TIFF *, int, int *, int, const char *,
                           int (*)(double,void*), void * );
  
  /************************************************************************/
  /*                                main()                                */
  /************************************************************************/
  
  int main( int argc, char ** argv )
  
  {
      int		anOverviews[100];   /* TODO: un-hardwire array length, flexible allocate */
      int		nOverviewCount = 0;
      int		bUseSubIFD = 0;
      TIFF	*hTIFF;
      const char  *pszResampling = "nearest";
  
  /* -------------------------------------------------------------------- */
  /*      Usage:                                                          */
  /* -------------------------------------------------------------------- */
      if( argc < 2 )
      {
          printf( "Usage: addtiffo [-r {nearest,average,mode}]\n"
                  "                tiff_filename [resolution_reductions]\n"
                  "\n"
                  "Example:\n"
                  " %% addtiffo abc.tif 2 4 8 16\n" );
          return( 1 );
      }
  
      while( argv[1][0] == '-' )
      {
          if( strcmp(argv[1],"-subifd") == 0 )
          {
              bUseSubIFD = 1;
              argv++;
              argc--;
          }
          else if( strcmp(argv[1],"-r") == 0 )
          {
              argv += 2;
              argc -= 2;
              pszResampling = *argv;
          }
          else
          {
              fprintf( stderr, "Incorrect parameters\n" );
              return( 1 );
          }
      }
  
      /* TODO: resampling mode parameter needs to be encoded in an integer from this point on */
  
  /* -------------------------------------------------------------------- */
  /*      Collect the user requested reduction factors.                   */
  /* -------------------------------------------------------------------- */
      while( nOverviewCount < argc - 2 && nOverviewCount < 100 )
      {
          anOverviews[nOverviewCount] = atoi(argv[nOverviewCount+2]);
          if( (anOverviews[nOverviewCount] <= 0) ||
              ((anOverviews[nOverviewCount] > 1024)))
          {
              fprintf( stderr, "Incorrect parameters\n" );
              return(1);
          }
          nOverviewCount++;
      }
  
  /* -------------------------------------------------------------------- */
  /*      Default to four overview levels.  It would be nicer if it       */
  /*      defaulted based on the size of the source image.                */
  /* -------------------------------------------------------------------- */
      /* TODO: make it default based on the size of the source image */
      if( nOverviewCount == 0 )
      {
          nOverviewCount = 4;
  
          anOverviews[0] = 2;
          anOverviews[1] = 4;
          anOverviews[2] = 8;
          anOverviews[3] = 16;
      }
  
  /* -------------------------------------------------------------------- */
  /*      Build the overview.                                             */
  /* -------------------------------------------------------------------- */
      hTIFF = TIFFOpen( argv[1], "r+" );
      if( hTIFF == NULL )
      {
          fprintf( stderr, "TIFFOpen(%s) failed.\n", argv[1] );
          return( 1 );
      }
  
      TIFFBuildOverviews( hTIFF, nOverviewCount, anOverviews, bUseSubIFD,
                          pszResampling, NULL, NULL );
  
      TIFFClose( hTIFF );
  
  /* -------------------------------------------------------------------- */
  /*      Optionally test for memory leaks.                               */
  /* -------------------------------------------------------------------- */
  #ifdef DBMALLOC
      malloc_dump(1);
  #endif
  
      return( 0 );
  }
  /*
   * Local Variables:
   * mode: c
   * c-basic-offset: 4
   * fill-column: 78
   * End:
   */
  