src/transformfloat.h

   1 /*
   2  *  transformfloat.h
   3  *
   4  *  Copyright (C) Georg Martius - June 2011
   5  *   georg dot martius at web dot de
   6  *
   7  *  This file is part of vid.stab video stabilization library
   8  *
   9  *  vid.stab is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License,
  11  *  as published by the Free Software Foundation; either version 2, or
  12  *  (at your option) any later version.
  13  *
  14  *  vid.stab 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 General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with GNU Make; see the file COPYING.  If not, write to
  21  *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  22  *
  23  *  This work is licensed under the Creative Commons
  24  *  Attribution-NonCommercial-ShareAlike 2.5 License. To view a copy of
  25  *  this license, visit http://creativecommons.org/licenses/by-nc-sa/2.5/
  26  *  or send a letter to Creative Commons, 543 Howard Street, 5th Floor,
  27  *  San Francisco, California, 94105, USA.
  28  *  This EXCLUDES COMMERCIAL USAGE
  29  *
  30  */
  31 #ifndef __TRANSFORMFLOAT_H
  32 #define __TRANSFORMFLOAT_H
  33
  34 #include "transformtype.h"
  35 #include <stdint.h>
  36
  37 #ifdef TESTING
  38 #define _FLT(n) n ## _float
  39 #else
  40 #define _FLT(n) n
  41 #endif
  42
  43 struct _VSTransformData;
  44
  45 /// does the actual transformation in Packed space
  46 int _FLT(transformPacked)(struct _VSTransformData* td, VSTransform t);
  47 /// does the actual transformation in Planar space
  48 int _FLT(transformPlanar)(struct _VSTransformData* td, VSTransform t);
  49
  50 /**
  51  * interpolate: general interpolation function pointer for one channel image data
  52  *
  53  * Parameters:
  54  *             rv: destination pixel (call by reference)
  55  *            x,y: the source coordinates in the image img. Note this
  56  *                 are real-value coordinates, that's why we interpolate
  57  *            img: source image
  58  *   img_linesize: length of one line in bytes (>= width)
  59  *   width,height: dimension of image
  60  *            def: default value if coordinates are out of range
  61  * Return value:  None
  62  */
  63 typedef void (*_FLT(vsInterpolateFun))(uint8_t *rv, float x, float y,
  64                                        const uint8_t *img, int img_linesize,
  65                                        int width, int height, uint8_t def);
  66
  67 /* forward deklarations, please look in the .c file for documentation*/
  68 void _FLT(interpolateBiLinBorder)(uint8_t *rv, float x, float y,
  69                                   const uint8_t *img, int img_linesize,
  70                                   int w, int h, uint8_t def);
  71 void _FLT(interpolateBiCub)(uint8_t *rv, float x, float y,
  72                             const uint8_t *img, int img_linesize,
  73                             int width, int height, uint8_t def);
  74 void _FLT(interpolateBiLin)(uint8_t *rv, float x, float y,
  75                             const uint8_t *img, int img_linesize,
  76                             int w, int h, uint8_t def);
  77 void _FLT(interpolateLin)(uint8_t *rv, float x, float y,
  78                           const uint8_t *img, int img_linesize,
  79                           int w, int h, uint8_t def);
  80 void _FLT(interpolateZero)(uint8_t *rv, float x, float y,
  81                            const uint8_t *img, int img_linesize,
  82                            int w, int h, uint8_t def);
  83 void _FLT(interpolateN)(uint8_t *rv, float x, float y,
  84                         const uint8_t *img, int img_linesize,
  85                         int width, int height,
  86                         uint8_t N, uint8_t channel, uint8_t def);
  87
  88 #endif
  89
  90 /*
  91  * Local variables:
  92  *   c-file-style: "stroustrup"
  93  *   c-file-offsets: ((case-label . *) (statement-case-intro . *))
  94  *   indent-tabs-mode: nil
  95  * End:
  96  *
  97  * vim: expandtab shiftwidth=4:
  98  */