OpenJPEG 2.5.0
cio.h
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1/*
2 * The copyright in this software is being made available under the 2-clauses
3 * BSD License, included below. This software may be subject to other third
4 * party and contributor rights, including patent rights, and no such rights
5 * are granted under this license.
6 *
7 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
8 * Copyright (c) 2002-2014, Professor Benoit Macq
9 * Copyright (c) 2001-2003, David Janssens
10 * Copyright (c) 2002-2003, Yannick Verschueren
11 * Copyright (c) 2003-2007, Francois-Olivier Devaux
12 * Copyright (c) 2003-2014, Antonin Descampe
13 * Copyright (c) 2005, Herve Drolon, FreeImage Team
14 * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
15 * Copyright (c) 2012, CS Systemes d'Information, France
16 * All rights reserved.
17 *
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
20 * are met:
21 * 1. Redistributions of source code must retain the above copyright
22 * notice, this list of conditions and the following disclaimer.
23 * 2. Redistributions in binary form must reproduce the above copyright
24 * notice, this list of conditions and the following disclaimer in the
25 * documentation and/or other materials provided with the distribution.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
28 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
31 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40#ifndef OPJ_CIO_H
41#define OPJ_CIO_H
51
52#include "opj_config_private.h"
53
54/* ----------------------------------------------------------------------- */
55
56#if defined(OPJ_BIG_ENDIAN)
57#define opj_write_bytes opj_write_bytes_BE
58#define opj_read_bytes opj_read_bytes_BE
59#define opj_write_double opj_write_double_BE
60#define opj_read_double opj_read_double_BE
61#define opj_write_float opj_write_float_BE
62#define opj_read_float opj_read_float_BE
63#else
64#define opj_write_bytes opj_write_bytes_LE
65#define opj_read_bytes opj_read_bytes_LE
66#define opj_write_double opj_write_double_LE
67#define opj_read_double opj_read_double_LE
68#define opj_write_float opj_write_float_LE
69#define opj_read_float opj_read_float_LE
70#endif
71
72
73#define OPJ_STREAM_STATUS_OUTPUT 0x1U
74#define OPJ_STREAM_STATUS_INPUT 0x2U
75#define OPJ_STREAM_STATUS_END 0x4U
76#define OPJ_STREAM_STATUS_ERROR 0x8U
77
166
169/* ----------------------------------------------------------------------- */
176void opj_write_bytes_BE(OPJ_BYTE * p_buffer, OPJ_UINT32 p_value,
177 OPJ_UINT32 p_nb_bytes);
178
186void opj_read_bytes_BE(const OPJ_BYTE * p_buffer, OPJ_UINT32 * p_value,
187 OPJ_UINT32 p_nb_bytes);
188
196void opj_write_bytes_LE(OPJ_BYTE * p_buffer, OPJ_UINT32 p_value,
197 OPJ_UINT32 p_nb_bytes);
198
206void opj_read_bytes_LE(const OPJ_BYTE * p_buffer, OPJ_UINT32 * p_value,
207 OPJ_UINT32 p_nb_bytes);
208
209
215void opj_write_double_LE(OPJ_BYTE * p_buffer, OPJ_FLOAT64 p_value);
216
217/***
218 * Write some bytes to the given data buffer, this function is used in Big Endian cpus.
219 * @param p_buffer pointer the data buffer to write data to.
220 * @param p_value the value to write
221 */
222void opj_write_double_BE(OPJ_BYTE * p_buffer, OPJ_FLOAT64 p_value);
223
229void opj_read_double_LE(const OPJ_BYTE * p_buffer, OPJ_FLOAT64 * p_value);
230
236void opj_read_double_BE(const OPJ_BYTE * p_buffer, OPJ_FLOAT64 * p_value);
237
243void opj_read_float_LE(const OPJ_BYTE * p_buffer, OPJ_FLOAT32 * p_value);
244
250void opj_read_float_BE(const OPJ_BYTE * p_buffer, OPJ_FLOAT32 * p_value);
251
257void opj_write_float_LE(OPJ_BYTE * p_buffer, OPJ_FLOAT32 p_value);
258
259/***
260 * Write some bytes to the given data buffer, this function is used in Big Endian cpus.
261 * @param p_buffer pointer the data buffer to write data to.
262 * @param p_value the value to write
263 */
264void opj_write_float_BE(OPJ_BYTE * p_buffer, OPJ_FLOAT32 p_value);
265
275 OPJ_BYTE * p_buffer, OPJ_SIZE_T p_size, struct opj_event_mgr * p_event_mgr);
276
286 const OPJ_BYTE * p_buffer, OPJ_SIZE_T p_size,
287 struct opj_event_mgr * p_event_mgr);
288
296 struct opj_event_mgr * p_event_mgr);
297
306 struct opj_event_mgr * p_event_mgr);
307
316
317
326 p_stream);
327
336 OPJ_OFF_T p_size, struct opj_event_mgr * p_event_mgr);
337
346 OPJ_OFF_T p_size, struct opj_event_mgr * p_event_mgr);
347
356 struct opj_event_mgr * p_event_mgr);
357
366 OPJ_OFF_T p_size, struct opj_event_mgr * p_event_mgr);
367
376 struct opj_event_mgr * p_event_mgr);
377
382
386OPJ_SIZE_T opj_stream_default_read(void * p_buffer, OPJ_SIZE_T p_nb_bytes,
387 void * p_user_data);
388
392OPJ_SIZE_T opj_stream_default_write(void * p_buffer, OPJ_SIZE_T p_nb_bytes,
393 void * p_user_data);
394
398OPJ_OFF_T opj_stream_default_skip(OPJ_OFF_T p_nb_bytes, void * p_user_data);
399
403OPJ_BOOL opj_stream_default_seek(OPJ_OFF_T p_nb_bytes, void * p_user_data);
404
405/* ----------------------------------------------------------------------- */
409
410
411#endif /* OPJ_CIO_H */
412
void opj_read_float_LE(const OPJ_BYTE *p_buffer, OPJ_FLOAT32 *p_value)
Reads some bytes from the given data buffer, this function is used in Little Endian cpus.
Definition cio.c:149
OPJ_OFF_T opj_stream_read_skip(opj_stream_private_t *p_stream, OPJ_OFF_T p_size, struct opj_event_mgr *p_event_mgr)
Skips a number of bytes from the stream.
Definition cio.c:463
void opj_write_bytes_LE(OPJ_BYTE *p_buffer, OPJ_UINT32 p_value, OPJ_UINT32 p_nb_bytes)
Write some bytes to the given data buffer, this function is used in Little Endian cpus.
Definition cio.c:58
OPJ_BOOL opj_stream_flush(opj_stream_private_t *p_stream, struct opj_event_mgr *p_event_mgr)
Writes the content of the stream buffer to the stream.
Definition cio.c:433
OPJ_OFF_T opj_stream_default_skip(OPJ_OFF_T p_nb_bytes, void *p_user_data)
FIXME DOC.
Definition cio.c:671
void opj_write_float_BE(OPJ_BYTE *p_buffer, OPJ_FLOAT32 p_value)
Definition cio.c:127
OPJ_BOOL opj_stream_default_seek(OPJ_OFF_T p_nb_bytes, void *p_user_data)
FIXME DOC.
Definition cio.c:678
OPJ_OFF_T opj_stream_tell(const opj_stream_private_t *p_stream)
Tells the byte offset on the stream (similar to ftell).
Definition cio.c:579
OPJ_SIZE_T opj_stream_read_data(opj_stream_private_t *p_stream, OPJ_BYTE *p_buffer, OPJ_SIZE_T p_size, struct opj_event_mgr *p_event_mgr)
Reads some bytes from the stream.
Definition cio.c:281
OPJ_SIZE_T opj_stream_default_write(void *p_buffer, OPJ_SIZE_T p_nb_bytes, void *p_user_data)
FIXME DOC.
Definition cio.c:662
OPJ_BOOL opj_stream_read_seek(opj_stream_private_t *p_stream, OPJ_OFF_T p_size, struct opj_event_mgr *p_event_mgr)
Skips a number of bytes from the stream.
Definition cio.c:600
struct opj_stream_private opj_stream_private_t
Byte input-output stream.
OPJ_OFF_T opj_stream_skip(opj_stream_private_t *p_stream, OPJ_OFF_T p_size, struct opj_event_mgr *p_event_mgr)
Skips a number of bytes from the stream.
Definition cio.c:593
OPJ_SIZE_T opj_stream_write_data(opj_stream_private_t *p_stream, const OPJ_BYTE *p_buffer, OPJ_SIZE_T p_size, struct opj_event_mgr *p_event_mgr)
Writes some bytes to the stream.
Definition cio.c:385
OPJ_BOOL opj_stream_seek(opj_stream_private_t *p_stream, OPJ_OFF_T p_size, struct opj_event_mgr *p_event_mgr)
Seeks a number of bytes from the stream.
Definition cio.c:641
OPJ_OFF_T opj_stream_write_skip(opj_stream_private_t *p_stream, OPJ_OFF_T p_size, struct opj_event_mgr *p_event_mgr)
Skips a number of bytes from the stream.
Definition cio.c:538
void opj_read_bytes_BE(const OPJ_BYTE *p_buffer, OPJ_UINT32 *p_value, OPJ_UINT32 p_nb_bytes)
Reads some bytes from the given data buffer, this function is used in Big Endian cpus.
Definition cio.c:71
OPJ_BOOL opj_stream_write_seek(opj_stream_private_t *p_stream, OPJ_OFF_T p_size, struct opj_event_mgr *p_event_mgr)
Skips a number of bytes from the stream.
Definition cio.c:620
void opj_write_bytes_BE(OPJ_BYTE *p_buffer, OPJ_UINT32 p_value, OPJ_UINT32 p_nb_bytes)
Write some bytes to the given data buffer, this function is used in Big Endian cpus.
Definition cio.c:47
void opj_write_float_LE(OPJ_BYTE *p_buffer, OPJ_FLOAT32 p_value)
Write some bytes to the given data buffer, this function is used in Little Endian cpus.
Definition cio.c:133
void opj_write_double_LE(OPJ_BYTE *p_buffer, OPJ_FLOAT64 p_value)
Write some bytes to the given data buffer, this function is used in Little Endian cpus.
Definition cio.c:102
OPJ_SIZE_T opj_stream_default_read(void *p_buffer, OPJ_SIZE_T p_nb_bytes, void *p_user_data)
FIXME DOC.
Definition cio.c:653
void opj_read_double_LE(const OPJ_BYTE *p_buffer, OPJ_FLOAT64 *p_value)
Reads some bytes from the given data buffer, this function is used in Little Endian cpus.
Definition cio.c:118
void opj_write_double_BE(OPJ_BYTE *p_buffer, OPJ_FLOAT64 p_value)
Definition cio.c:96
void opj_read_float_BE(const OPJ_BYTE *p_buffer, OPJ_FLOAT32 *p_value)
Reads some bytes from the given data buffer, this function is used in Big Endian cpus.
Definition cio.c:143
OPJ_BOOL opj_stream_has_seek(const opj_stream_private_t *p_stream)
Tells if the given stream is seekable.
Definition cio.c:648
OPJ_OFF_T opj_stream_get_number_byte_left(const opj_stream_private_t *p_stream)
Get the number of bytes left before the end of the stream (similar to cio_numbytesleft).
Definition cio.c:584
void opj_read_bytes_LE(const OPJ_BYTE *p_buffer, OPJ_UINT32 *p_value, OPJ_UINT32 p_nb_bytes)
Reads some bytes from the given data buffer, this function is used in Little Endian cpus.
Definition cio.c:82
void opj_read_double_BE(const OPJ_BYTE *p_buffer, OPJ_FLOAT64 *p_value)
Reads some bytes from the given data buffer, this function is used in Big Endian cpus.
Definition cio.c:112
void(* opj_stream_free_user_data_fn)(void *p_user_data)
Definition openjpeg.h:661
unsigned char OPJ_BYTE
Definition openjpeg.h:123
OPJ_BOOL(* opj_stream_seek_fn)(OPJ_OFF_T p_nb_bytes, void *p_user_data)
Definition openjpeg.h:655
double OPJ_FLOAT64
Definition openjpeg.h:122
uint32_t OPJ_UINT32
Definition openjpeg.h:132
OPJ_SIZE_T(* opj_stream_write_fn)(void *p_buffer, OPJ_SIZE_T p_nb_bytes, void *p_user_data)
Definition openjpeg.h:643
float OPJ_FLOAT32
Definition openjpeg.h:121
int64_t OPJ_OFF_T
Definition openjpeg.h:136
OPJ_SIZE_T(* opj_stream_read_fn)(void *p_buffer, OPJ_SIZE_T p_nb_bytes, void *p_user_data)
Definition openjpeg.h:637
size_t OPJ_SIZE_T
Definition openjpeg.h:139
int OPJ_BOOL
Definition openjpeg.h:116
uint64_t OPJ_UINT64
Definition openjpeg.h:134
OPJ_OFF_T(* opj_stream_skip_fn)(OPJ_OFF_T p_nb_bytes, void *p_user_data)
Definition openjpeg.h:649
Message handler object used for.
Definition event.h:50
Byte input-output stream.
Definition cio.h:81
opj_stream_free_user_data_fn m_free_user_data_fn
Pointer to function to free m_user_data (NULL at initialization) when destroying the stream.
Definition cio.h:92
OPJ_OFF_T(* m_opj_skip)(struct opj_stream_private *, OPJ_OFF_T, struct opj_event_mgr *)
FIXME DOC.
Definition cio.h:134
opj_stream_skip_fn m_skip_fn
Pointer to actual skip function (NULL at the initialization of the cio.
Definition cio.h:113
void * m_user_data
User data, be it files, ... The actual data depends on the type of the stream.
Definition cio.h:85
OPJ_UINT64 m_user_data_length
User data length.
Definition cio.h:97
OPJ_OFF_T m_byte_offset
The number of bytes read/written from the beginning of the stream.
Definition cio.h:151
OPJ_BOOL(* m_opj_seek)(struct opj_stream_private *, OPJ_OFF_T, struct opj_event_mgr *)
FIXME DOC.
Definition cio.h:140
OPJ_SIZE_T m_buffer_size
The size of the buffer.
Definition cio.h:156
OPJ_SIZE_T m_bytes_in_buffer
number of bytes containing in the buffer.
Definition cio.h:146
OPJ_BYTE * m_current_data
Pointer to the current read data.
Definition cio.h:129
opj_stream_write_fn m_write_fn
Pointer to actual write function (NULL at the initialization of the cio.
Definition cio.h:107
OPJ_UINT32 m_status
Flags to tell the status of the stream.
Definition cio.h:162
OPJ_BYTE * m_stored_data
Actual data stored into the stream if read from.
Definition cio.h:124
opj_stream_read_fn m_read_fn
Pointer to actual read function (NULL at the initialization of the cio.
Definition cio.h:102
opj_stream_seek_fn m_seek_fn
Pointer to actual seek function (if available).
Definition cio.h:118