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author | dan miller | 2007-10-18 08:29:49 +0000 |
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committer | dan miller | 2007-10-18 08:29:49 +0000 |
commit | cc07c64bdef46f4d25c2203e874f91ee94583f56 (patch) | |
tree | 004c68e8d8813ff1addfd9749e3dbdc6ff4432a9 /libraries/openjpeg-libsl/libopenjpeg/bio.h | |
parent | hmm... trying again to get everything committed (diff) | |
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one more time
Diffstat (limited to 'libraries/openjpeg-libsl/libopenjpeg/bio.h')
-rw-r--r-- | libraries/openjpeg-libsl/libopenjpeg/bio.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/libraries/openjpeg-libsl/libopenjpeg/bio.h b/libraries/openjpeg-libsl/libopenjpeg/bio.h new file mode 100644 index 0000000..d0a809c --- /dev/null +++ b/libraries/openjpeg-libsl/libopenjpeg/bio.h | |||
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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 | #ifndef __BIO_H | ||
33 | #define __BIO_H | ||
34 | /** | ||
35 | @file bio.h | ||
36 | @brief Implementation of an individual bit input-output (BIO) | ||
37 | |||
38 | The functions in BIO.C have for goal to realize an individual bit input - output. | ||
39 | */ | ||
40 | |||
41 | /** @defgroup BIO BIO - Individual bit input-output stream */ | ||
42 | /*@{*/ | ||
43 | |||
44 | /** | ||
45 | Individual bit input-output stream (BIO) | ||
46 | */ | ||
47 | typedef struct opj_bio { | ||
48 | /** pointer to the start of the buffer */ | ||
49 | unsigned char *start; | ||
50 | /** pointer to the end of the buffer */ | ||
51 | unsigned char *end; | ||
52 | /** pointer to the present position in the buffer */ | ||
53 | unsigned char *bp; | ||
54 | /** temporary place where each byte is read or written */ | ||
55 | unsigned int buf; | ||
56 | /** coder : number of bits free to write. decoder : number of bits read */ | ||
57 | int ct; | ||
58 | } opj_bio_t; | ||
59 | |||
60 | /** @name Exported functions */ | ||
61 | /*@{*/ | ||
62 | /* ----------------------------------------------------------------------- */ | ||
63 | /** | ||
64 | Create a new BIO handle | ||
65 | @return Returns a new BIO handle if successful, returns NULL otherwise | ||
66 | */ | ||
67 | opj_bio_t* bio_create(); | ||
68 | /** | ||
69 | Destroy a previously created BIO handle | ||
70 | @param bio BIO handle to destroy | ||
71 | */ | ||
72 | void bio_destroy(opj_bio_t *bio); | ||
73 | /** | ||
74 | Number of bytes written. | ||
75 | @param bio BIO handle | ||
76 | @return Returns the number of bytes written | ||
77 | */ | ||
78 | int bio_numbytes(opj_bio_t *bio); | ||
79 | /** | ||
80 | Init encoder | ||
81 | @param bio BIO handle | ||
82 | @param bp Output buffer | ||
83 | @param len Output buffer length | ||
84 | */ | ||
85 | void bio_init_enc(opj_bio_t *bio, unsigned char *bp, int len); | ||
86 | /** | ||
87 | Init decoder | ||
88 | @param bio BIO handle | ||
89 | @param bp Input buffer | ||
90 | @param len Input buffer length | ||
91 | */ | ||
92 | void bio_init_dec(opj_bio_t *bio, unsigned char *bp, int len); | ||
93 | /** | ||
94 | Write bits | ||
95 | @param bio BIO handle | ||
96 | @param v Value of bits | ||
97 | @param n Number of bits to write | ||
98 | */ | ||
99 | void bio_write(opj_bio_t *bio, int v, int n); | ||
100 | /** | ||
101 | Read bits | ||
102 | @param bio BIO handle | ||
103 | @param n Number of bits to read | ||
104 | @return Returns the corresponding read number | ||
105 | */ | ||
106 | int bio_read(opj_bio_t *bio, int n); | ||
107 | /** | ||
108 | Flush bits | ||
109 | @param bio BIO handle | ||
110 | @return Returns 1 if successful, returns 0 otherwise | ||
111 | */ | ||
112 | int bio_flush(opj_bio_t *bio); | ||
113 | /** | ||
114 | Passes the ending bits (coming from flushing) | ||
115 | @param bio BIO handle | ||
116 | @return Returns 1 if successful, returns 0 otherwise | ||
117 | */ | ||
118 | int bio_inalign(opj_bio_t *bio); | ||
119 | /* ----------------------------------------------------------------------- */ | ||
120 | /*@}*/ | ||
121 | |||
122 | /*@}*/ | ||
123 | |||
124 | #endif /* __BIO_H */ | ||
125 | |||