labelled_image_pool_subset.cc

   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 #include "labelled_image_pool_subset.h"
  22
  23 LabelledImagePoolSubset::LabelledImagePoolSubset(LabelledImagePool *mother_pool,
  24                                                  bool *used) {
  25   _mother_pool = mother_pool;
  26   _nb_images = 0;
  27   for(int n = 0; n < _mother_pool->nb_images(); n++)
  28     if(used[n]) _nb_images++;
  29   _indexes = new int[_nb_images];
  30   int k = 0;
  31   for(int n = 0; n < _mother_pool->nb_images(); n++)
  32     if(used[n]) _indexes[k++] = n;
  33 }
  34
  35 LabelledImagePoolSubset::~LabelledImagePoolSubset() {
  36   delete[] _indexes;
  37 }
  38
  39 int LabelledImagePoolSubset::nb_images() {
  40   return _nb_images;
  41 }
  42
  43 LabelledImage *LabelledImagePoolSubset::grab_image(int n_image) {
  44   return _mother_pool->grab_image(_indexes[n_image]);
  45 }
  46
  47 void LabelledImagePoolSubset::release_image(int n_image) {
  48   _mother_pool->release_image(_indexes[n_image]);
  49 }