projective_split.h

   1 /*
   2  * Separate calculating projected coordinates and transforming the pixels.
   3  *
   4  * Copyright (C) 2018  Antonio Ospite <ao2@ao2.it>
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef PROJECTIVE_SPLIT_H
  21 #define PROJECTIVE_SPLIT_H
  22
  23 #include <leptonica/allheaders.h>
  24
  25 struct p {
  26         l_int32 x;
  27         l_int32 y;
  28 };
  29
  30 struct p *
  31 _pixProjectiveSampled_precalc_map(BOX        *viewport,
  32                                         l_float32  *vc);
  33
  34 PIX *
  35 _pixProjectiveSampled_apply_map_dest_roi(PIX        *pixs,
  36                                struct p   *map,
  37                                l_int32     incolor,
  38                                PIX        *pixd,
  39                                BOX        *roi);
  40
  41 #ifdef USE_NEON
  42 PIX *
  43 _pixProjectiveSampled_apply_map_dest_roi_neon(PIX        *pixs,
  44                                struct p   *map,
  45                                l_int32     incolor,
  46                                PIX        *pixd,
  47                                BOX        *roi);
  48 #endif
  49
  50 #endif /* PROJECTIVE_SPLIT_H */