| 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 | */ |