labelled_image_pool_file.h

   1
   2 ///////////////////////////////////////////////////////////////////////////
   3 // This program is free software: you can redistribute it and/or modify  //
   4 // it under the terms of the version 3 of the GNU General Public License //
   5 // as published by the Free Software Foundation.                         //
   6 //                                                                       //
   7 // This program is distributed in the hope that it will be useful, but   //
   8 // WITHOUT ANY WARRANTY; without even the implied warranty of            //
   9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      //
  10 // General Public License for more details.                              //
  11 //                                                                       //
  12 // You should have received a copy of the GNU General Public License     //
  13 // along with this program. If not, see <http://www.gnu.org/licenses/>.  //
  14 //                                                                       //
  15 // Written by Francois Fleuret                                           //
  16 // (C) Idiap Research Institute                                          //
  17 //                                                                       //
  18 // Contact <francois.fleuret@idiap.ch> for comments & bug reports        //
  19 ///////////////////////////////////////////////////////////////////////////
  20
  21 /*
  22
  23   This is a LabelledImagePool that corresponds physically to a file.
  24
  25  */
  26
  27 #ifndef LABELLED_IMAGE_POOL_FILE_H
  28 #define LABELLED_IMAGE_POOL_FILE_H
  29
  30 #include "labelled_image_pool.h"
  31 #include "labelled_image.h"
  32
  33 #include <fstream>
  34
  35 class LabelledImagePoolFile : public LabelledImagePool {
  36   int _nb_images;
  37   LabelledImage **_images;
  38   streampos *_image_stream_positions;
  39   int *_image_nb_refs;
  40   ifstream *_stream;
  41
  42 public:
  43   LabelledImagePoolFile(char *file_name);
  44   virtual ~LabelledImagePoolFile();
  45   virtual int nb_images();
  46   virtual LabelledImage *grab_image(int n_image);
  47   virtual void release_image(int n_image);
  48 };
  49
  50 #endif