lqr/lqr_rwindow_priv.h

   1 /* LiquidRescaling Library
   2  * Copyright (C) 2007-2009 Carlo Baldassi (the "Author") <carlobaldassi@gmail.com>.
   3  * All Rights Reserved.
   4  *
   5  * This library implements the algorithm described in the paper
   6  * "Seam Carving for Content-Aware Image Resizing"
   7  * by Shai Avidan and Ariel Shamir
   8  * which can be found at http://www.faculty.idc.ac.il/arik/imret.pdf
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU Lesser General Public License as published by
  12  * the Free Software Foundation; version 3 dated June, 2007.
  13
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU Lesser General Public License for more details.
  18
  19  * You should have received a copy of the GNU Lesser General Public License
  20  * along with this program; if not, see <http://www.gnu.org/licenses/>
  21  */
  22
  23 #ifndef __LQR_READER_WINDOW_PRIV_H__
  24 #define __LQR_READER_WINDOW_PRIV_H__
  25
  26 #ifndef __LQR_BASE_H__
  27 #error "lqr_base.h must be included prior to lqr_rwindow_priv.h"
  28 #endif /* __LQR_BASE_H__ */
  29
  30 struct _LqrReadingWindow {
  31     gdouble **buffer;
  32     gint radius;
  33     LqrEnergyReaderType read_t;
  34     gint channels;
  35     gboolean use_rcache;
  36     LqrCarver *carver;
  37     gint x;
  38     gint y;
  39 };
  40
  41 typedef gdouble (*LqrReadFunc) (LqrCarver *, gint, gint);
  42 typedef gdouble (*LqrReadFuncWithCh) (LqrCarver *, gint, gint, gint);
  43 /* typedef glfoat (*LqrReadFuncAbs) (LqrCarver*, gint, gint, gint, gint); */
  44
  45 LqrRetVal lqr_rwindow_fill_std(LqrReadingWindow *rwindow, LqrCarver *r, gint x, gint y);
  46 LqrRetVal lqr_rwindow_fill_rgba(LqrReadingWindow *rwindow, LqrCarver *r, gint x, gint y);
  47 LqrRetVal lqr_rwindow_fill_custom(LqrReadingWindow *rwindow, LqrCarver *r, gint x, gint y);
  48 LqrRetVal lqr_rwindow_fill(LqrReadingWindow *rwindow, LqrCarver *r, gint x, gint y);
  49
  50 gdouble lqr_rwindow_read_bright(LqrReadingWindow *rwindow, gint x, gint y);
  51 gdouble lqr_rwindow_read_luma(LqrReadingWindow *rwindow, gint x, gint y);
  52 gdouble lqr_rwindow_read_rgba(LqrReadingWindow *rwindow, gint x, gint y, gint channel);
  53 gdouble lqr_rwindow_read_custom(LqrReadingWindow *rwindow, gint x, gint y, gint channel);
  54
  55 LqrReadingWindow *lqr_rwindow_new_std(gint radius, LqrEnergyReaderType read_func_type, gboolean use_rcache);
  56 LqrReadingWindow *lqr_rwindow_new_rgba(gint radius, gboolean use_rcache);
  57 LqrReadingWindow *lqr_rwindow_new_custom(gint radius, gboolean use_rcache, gint channels);
  58 LqrReadingWindow *lqr_rwindow_new(gint radius, LqrEnergyReaderType read_func_type, gboolean use_rcache);
  59 void lqr_rwindow_destroy(LqrReadingWindow *rwindow);
  60
  61 #endif /* __LQR_READER_WINDOW_PRIV_H__ */