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-rw-r--r--libraries/openjpeg-libsl/libopenjpeg/cio.c190
1 files changed, 0 insertions, 190 deletions
diff --git a/libraries/openjpeg-libsl/libopenjpeg/cio.c b/libraries/openjpeg-libsl/libopenjpeg/cio.c
deleted file mode 100644
index 6082e9b..0000000
--- a/libraries/openjpeg-libsl/libopenjpeg/cio.c
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1/*
2 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3 * Copyright (c) 2002-2007, Professor Benoit Macq
4 * Copyright (c) 2001-2003, David Janssens
5 * Copyright (c) 2002-2003, Yannick Verschueren
6 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
7 * Copyright (c) 2005, Herve Drolon, FreeImage Team
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#include "opj_includes.h"
33
34/* ----------------------------------------------------------------------- */
35
36opj_cio_t* OPJ_CALLCONV opj_cio_open(opj_common_ptr cinfo, unsigned char *buffer, int length) {
37 opj_cp_t *cp = NULL;
38 opj_cio_t *cio = (opj_cio_t*)opj_malloc(sizeof(opj_cio_t));
39 if(!cio) return NULL;
40 cio->cinfo = cinfo;
41 if(buffer && length) {
42 /* wrap a user buffer containing the encoded image */
43 cio->openmode = OPJ_STREAM_READ;
44 cio->buffer = buffer;
45 cio->length = length;
46 }
47 else if(!buffer && !length && cinfo) {
48 /* allocate a buffer for the encoded image */
49 cio->openmode = OPJ_STREAM_WRITE;
50 switch(cinfo->codec_format) {
51 case CODEC_J2K:
52 cp = ((opj_j2k_t*)cinfo->j2k_handle)->cp;
53 break;
54 case CODEC_JP2:
55 cp = ((opj_jp2_t*)cinfo->jp2_handle)->j2k->cp;
56 break;
57 default:
58 opj_free(cio);
59 return NULL;
60 }
61 cio->length = (int) (1.3 * cp->img_size);
62 cio->buffer = (unsigned char *)opj_malloc(cio->length);
63 if(!cio->buffer) {
64 opj_free(cio);
65 return NULL;
66 }
67 }
68 else {
69 opj_free(cio);
70 return NULL;
71 }
72
73 /* Initialize byte IO */
74 cio->start = cio->buffer;
75 cio->end = cio->buffer + cio->length;
76 cio->bp = cio->buffer;
77
78 return cio;
79}
80
81void OPJ_CALLCONV opj_cio_close(opj_cio_t *cio) {
82 if(cio) {
83 if(cio->openmode == OPJ_STREAM_WRITE) {
84 /* destroy the allocated buffer */
85 opj_free(cio->buffer);
86 }
87 /* destroy the cio */
88 opj_free(cio);
89 }
90}
91
92
93/* ----------------------------------------------------------------------- */
94
95/*
96 * Get position in byte stream.
97 */
98int OPJ_CALLCONV cio_tell(opj_cio_t *cio) {
99 return cio->bp - cio->start;
100}
101
102/*
103 * Set position in byte stream.
104 *
105 * pos : position, in number of bytes, from the beginning of the stream
106 */
107void OPJ_CALLCONV cio_seek(opj_cio_t *cio, int pos) {
108 cio->bp = cio->start + pos;
109}
110
111/*
112 * Number of bytes left before the end of the stream.
113 */
114int cio_numbytesleft(opj_cio_t *cio) {
115 return cio->end - cio->bp;
116}
117
118/*
119 * Get pointer to the current position in the stream.
120 */
121unsigned char *cio_getbp(opj_cio_t *cio) {
122 return cio->bp;
123}
124
125/*
126 * Write a byte.
127 */
128bool cio_byteout(opj_cio_t *cio, unsigned char v) {
129 if (cio->bp >= cio->end) {
130 opj_event_msg(cio->cinfo, EVT_ERROR, "write error\n");
131 return false;
132 }
133 *cio->bp++ = v;
134 return true;
135}
136
137/*
138 * Read a byte.
139 */
140unsigned char cio_bytein(opj_cio_t *cio) {
141 if (cio->bp >= cio->end) {
142 opj_event_msg(cio->cinfo, EVT_ERROR, "read error\n");
143 return 0;
144 }
145 return *cio->bp++;
146}
147
148/*
149 * Write some bytes.
150 *
151 * v : value to write
152 * n : number of bytes to write
153 */
154unsigned int cio_write(opj_cio_t *cio, unsigned int v, int n) {
155 int i;
156 for (i = n - 1; i >= 0; i--) {
157 if( !cio_byteout(cio, (unsigned char) ((v >> (i << 3)) & 0xff)) )
158 return 0;
159 }
160 return n;
161}
162
163/*
164 * Read some bytes.
165 *
166 * n : number of bytes to read
167 *
168 * return : value of the n bytes read
169 */
170unsigned int cio_read(opj_cio_t *cio, int n) {
171 int i;
172 unsigned int v;
173 v = 0;
174 for (i = n - 1; i >= 0; i--) {
175 v += cio_bytein(cio) << (i << 3);
176 }
177 return v;
178}
179
180/*
181 * Skip some bytes.
182 *
183 * n : number of bytes to skip
184 */
185void cio_skip(opj_cio_t *cio, int n) {
186 cio->bp += n;
187}
188
189
190
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