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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 | */ |