include/filters/GP_WeightedMedian.h

   1 /*****************************************************************************
   2  * This file is part of gfxprim library.                                     *
   3  *                                                                           *
   4  * Gfxprim is free software; you can redistribute it and/or                  *
   5  * modify it under the terms of the GNU Lesser General Public                *
   6  * License as published by the Free Software Foundation; either              *
   7  * version 2.1 of the License, or (at your option) any later version.        *
   8  *                                                                           *
   9  * Gfxprim is distributed in the hope that it will be useful,                *
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  12  * Lesser General Public License for more details.                           *
  13  *                                                                           *
  14  * You should have received a copy of the GNU Lesser General Public          *
  15  * License along with gfxprim; if not, write to the Free Software            *
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
  17  * Boston, MA  02110-1301  USA                                               *
  18  *                                                                           *
  19  * Copyright (C) 2009-2012 Cyril Hrubis <metan@ucw.cz>                       *
  20  *                                                                           *
  21  *****************************************************************************/
  22
  23  /*
  24
  25
  26   */
  27
  28 #ifndef FILTERS_GP_WEIGHTED_MEDIAN_H
  29 #define FILTERS_GP_WEIGHTED_MEDIAN_H
  30
  31 #include "GP_Filter.h"
  32
  33 typedef struct GP_MedianWeights {
  34         unsigned int w;
  35         unsigned int h;
  36         unsigned int *weights;
  37 } GP_MedianWeights;
  38
  39 int GP_FilterWeightedMedianEx(const GP_Pixmap *src,
  40                               GP_Coord x_src, GP_Coord y_src,
  41                               GP_Size w_src, GP_Size h_src,
  42                               GP_Pixmap *dst,
  43                               GP_Coord x_dst, GP_Coord y_dst,
  44                               GP_MedianWeights *weights,
  45                               GP_ProgressCallback *callback);
  46
  47 GP_Pixmap *GP_FilterWeightedMedianExAlloc(const GP_Pixmap *src,
  48                                            GP_Coord x_src, GP_Coord y_src,
  49                                            GP_Size w_src, GP_Size h_src,
  50                                            GP_MedianWeights *weights,
  51                                            GP_ProgressCallback *callback);
  52
  53 static inline int GP_FilterWeightedMedian(const GP_Pixmap *src,
  54                                           GP_Pixmap *dst,
  55                                           GP_MedianWeights *weights,
  56                                           GP_ProgressCallback *callback)
  57 {
  58         return GP_FilterWeightedMedianEx(src, 0, 0, src->w, src->h,
  59                                          dst, 0, 0, weights, callback);
  60 }
  61
  62 static inline GP_Pixmap *GP_FilterWeightedMedianAlloc(const GP_Pixmap *src,
  63                                                        GP_MedianWeights *weights,
  64                                                        GP_ProgressCallback *callback)
  65 {
  66         return GP_FilterWeightedMedianExAlloc(src, 0, 0, src->w, src->h,
  67                                               weights, callback);
  68 }
  69
  70 #endif /* FILTERS_GP_WEIGHTED_MEDIAN_H */