Mercurial > hgrepos > Python2 > PyMuPDF

comparison mupdf-source/thirdparty/openjpeg/src/lib/openjp2/thix_manager.c @ 2:b50eed0cc0ef upstream

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
parents
children
comparison
equal deleted inserted replaced
1:1d09e1dec1d9 2:b50eed0cc0ef
1 /*
2 * $Id: thix_manager.c 897 2011-08-28 21:43:57Z Kaori.Hagihara@gmail.com $
3 *
4 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
5 * Copyright (c) 2002-2014, Professor Benoit Macq
6 * Copyright (c) 2003-2004, Yannick Verschueren
7 * Copyright (c) 2010-2011, Kaori Hagihara
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 /*! \file
33 * \brief Modification of jpip.c from 2KAN indexer
34 */
35
36 #include "opj_includes.h"
37
38
39
40 int opj_write_thix(int coff, opj_codestream_info_t cstr_info,
41 opj_stream_private_t *cio,
42 opj_event_mgr_t * p_manager)
43 {
44 OPJ_BYTE l_data_header [4];
45 int i;
46 int tileno;
47 opj_jp2_box_t *box;
48 OPJ_UINT32 len;
49 OPJ_OFF_T lenp;
50
51 lenp = 0;
52 box = (opj_jp2_box_t *)opj_calloc((size_t)(cstr_info.tw * cstr_info.th),
53 sizeof(opj_jp2_box_t));
54 if (box == NULL) {
55 return 0;
56 }
57 for (i = 0; i < 2 ; i++) {
58 if (i) {
59 opj_stream_seek(cio, lenp, p_manager);
60 }
61
62 lenp = opj_stream_tell(cio);
63 opj_stream_skip(cio, 4, p_manager); /* L [at the end] */
64 opj_write_bytes(l_data_header, JPIP_THIX, 4); /* THIX */
65 opj_stream_write_data(cio, l_data_header, 4, p_manager);
66
67 opj_write_manf(i, cstr_info.tw * cstr_info.th, box, cio, p_manager);
68
69 for (tileno = 0; tileno < cstr_info.tw * cstr_info.th; tileno++) {
70 box[tileno].length = (OPJ_UINT32)opj_write_tilemhix(coff, cstr_info, tileno,
71 cio, p_manager);
72 box[tileno].type = JPIP_MHIX;
73 }
74
75 len = (OPJ_UINT32)(opj_stream_tell(cio) - lenp);
76 opj_stream_seek(cio, lenp, p_manager);
77 opj_write_bytes(l_data_header, len, 4); /* L */
78 opj_stream_write_data(cio, l_data_header, 4, p_manager);
79 opj_stream_seek(cio, lenp + len, p_manager);
80
81 }
82
83 opj_free(box);
84
85 return (int)len;
86 }
87
88 /*
89 * Write tile-part headers mhix box
90 *
91 * @param[in] coff offset of j2k codestream
92 * @param[in] cstr_info codestream information
93 * @param[in] tileno tile number
94 * @param[in] cio file output handle
95 * @return length of mhix box
96 */
97 int opj_write_tilemhix(int coff, opj_codestream_info_t cstr_info, int tileno,
98 opj_stream_private_t *cio,
99 opj_event_mgr_t * p_manager)
100 {
101 OPJ_BYTE l_data_header [8];
102 int i;
103 opj_tile_info_t tile;
104 opj_tp_info_t tp;
105 opj_marker_info_t *marker;
106 OPJ_UINT32 len;
107 OPJ_OFF_T lenp;
108
109 lenp = opj_stream_tell(cio);
110 opj_stream_skip(cio, 4,
111 p_manager); /* L [at the end] */
112 opj_write_bytes(l_data_header, JPIP_MHIX,
113 4); /* MHIX */
114 opj_stream_write_data(cio, l_data_header, 4, p_manager);
115
116 tile = cstr_info.tile[tileno];
117 tp = tile.tp[0];
118
119 opj_write_bytes(l_data_header,
120 (OPJ_UINT32)(tp.tp_end_header - tp.tp_start_pos + 1),
121 8); /* TLEN */
122 opj_stream_write_data(cio, l_data_header, 8, p_manager);
123
124 marker = cstr_info.tile[tileno].marker;
125
126 for (i = 0; i < cstr_info.tile[tileno].marknum;
127 i++) { /* Marker restricted to 1 apparition */
128 opj_write_bytes(l_data_header, marker[i].type, 2);
129 opj_write_bytes(l_data_header + 2, 0, 2);
130 opj_stream_write_data(cio, l_data_header, 4, p_manager);
131 opj_write_bytes(l_data_header, (OPJ_UINT32)(marker[i].pos - coff), 8);
132 opj_stream_write_data(cio, l_data_header, 8, p_manager);
133 opj_write_bytes(l_data_header, (OPJ_UINT32)marker[i].len, 2);
134 opj_stream_write_data(cio, l_data_header, 2, p_manager);
135 }
136
137 /* free( marker);*/
138
139 len = (OPJ_UINT32)(opj_stream_tell(cio) - lenp);
140 opj_stream_seek(cio, lenp, p_manager);
141 opj_write_bytes(l_data_header, len, 4); /* L */
142 opj_stream_write_data(cio, l_data_header, 4, p_manager);
143 opj_stream_seek(cio, lenp + len, p_manager);
144
145 return (int)len;
146 }