1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/*
* Copyright (c) 2001-2002, David Janssens
* Copyright (c) 2003, Yannick Verschueren
* Copyright (c) 2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __TCD_H
#define __TCD_H
#include "j2k.h"
#include "tgt.h"
typedef struct {
int numpasses;
int len;
unsigned char *data;
int maxpasses;
int numnewpasses;
int newlen;
} tcd_seg_t;
typedef struct {
int rate;
double distortiondec;
} tcd_pass_t;
typedef struct {
int numpasses;
int len;
unsigned char *data;
} tcd_layer_t;
typedef struct {
int x0, y0, x1, y1;
int numbps;
int numlenbits;
int len;
int numpasses;
int numnewpasses;
int numsegs;
tcd_seg_t segs[100];
unsigned char data[8192];
int numpassesinlayers;
tcd_layer_t layers[100];
int totalpasses;
tcd_pass_t passes[100];
} tcd_cblk_t;
typedef struct {
int x0, y0, x1, y1;
int cw, ch;
tcd_cblk_t *cblks;
tgt_tree_t *incltree;
tgt_tree_t *imsbtree;
} tcd_precinct_t;
typedef struct {
int x0, y0, x1, y1;
int bandno;
tcd_precinct_t *precincts;
int numbps;
int stepsize;
} tcd_band_t;
typedef struct {
int x0, y0, x1, y1;
int previous_x0, previous_y0, previous_x1, previous_y1; // usefull for the DWT
int cas_col, cas_row; // usefull for the DWT
int pw, ph;
int numbands;
tcd_band_t bands[3];
} tcd_resolution_t;
typedef struct {
int x0, y0, x1, y1;
int previous_row, previous_col; // usefull for the DWT
int numresolutions;
tcd_resolution_t *resolutions;
int *data;
} tcd_tilecomp_t;
typedef struct {
int x0, y0, x1, y1;
int numcomps;
//int PPT;
//int len_ppt;
tcd_tilecomp_t *comps;
} tcd_tile_t;
typedef struct {
int tw, th;
tcd_tile_t *tiles;
} tcd_image_t;
/*
* Initialize the tile coder/decoder
* img: raw image
* cp: coding parameters
* imgg: creation of index file
*/
void tcd_init(j2k_image_t *img, j2k_cp_t *cp, info_image_t *imgg);
void tcd_free(j2k_image_t *img, j2k_cp_t *cp);
/*
* Decode a tile from a buffer into a raw image
* src: source buffer
* len: length of the source buffer
* tileno: number that identifies the tile that will be decoded
* imgg : Structure for index file
*/
int tcd_decode_tile(unsigned char *src, int len, int tileno, info_image_t *imgg);
#endif
|