| 0,0 → 1,125 |
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| /* |
| * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium |
| * Copyright (c) 2002-2007, Professor Benoit Macq |
| * Copyright (c) 2001-2003, David Janssens |
| * Copyright (c) 2002-2003, Yannick Verschueren |
| * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe |
| * Copyright (c) 2005, Herve Drolon, FreeImage Team |
| * 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 __BIO_H |
| #define __BIO_H |
| /** |
| @file bio.h |
| @brief Implementation of an individual bit input-output (BIO) |
| |
| The functions in BIO.C have for goal to realize an individual bit input - output. |
| */ |
| |
| /** @defgroup BIO BIO - Individual bit input-output stream */ |
| /*@{*/ |
| |
| /** |
| Individual bit input-output stream (BIO) |
| */ |
| typedef struct opj_bio { |
| /** pointer to the start of the buffer */ |
| unsigned char *start; |
| /** pointer to the end of the buffer */ |
| unsigned char *end; |
| /** pointer to the present position in the buffer */ |
| unsigned char *bp; |
| /** temporary place where each byte is read or written */ |
| unsigned int buf; |
| /** coder : number of bits free to write. decoder : number of bits read */ |
| int ct; |
| } opj_bio_t; |
| |
| /** @name Exported functions */ |
| /*@{*/ |
| /* ----------------------------------------------------------------------- */ |
| /** |
| Create a new BIO handle |
| @return Returns a new BIO handle if successful, returns NULL otherwise |
| */ |
| opj_bio_t* bio_create(void); |
| /** |
| Destroy a previously created BIO handle |
| @param bio BIO handle to destroy |
| */ |
| void bio_destroy(opj_bio_t *bio); |
| /** |
| Number of bytes written. |
| @param bio BIO handle |
| @return Returns the number of bytes written |
| */ |
| int bio_numbytes(opj_bio_t *bio); |
| /** |
| Init encoder |
| @param bio BIO handle |
| @param bp Output buffer |
| @param len Output buffer length |
| */ |
| void bio_init_enc(opj_bio_t *bio, unsigned char *bp, int len); |
| /** |
| Init decoder |
| @param bio BIO handle |
| @param bp Input buffer |
| @param len Input buffer length |
| */ |
| void bio_init_dec(opj_bio_t *bio, unsigned char *bp, int len); |
| /** |
| Write bits |
| @param bio BIO handle |
| @param v Value of bits |
| @param n Number of bits to write |
| */ |
| void bio_write(opj_bio_t *bio, int v, int n); |
| /** |
| Read bits |
| @param bio BIO handle |
| @param n Number of bits to read |
| @return Returns the corresponding read number |
| */ |
| int bio_read(opj_bio_t *bio, int n); |
| /** |
| Flush bits |
| @param bio BIO handle |
| @return Returns 1 if successful, returns 0 otherwise |
| */ |
| int bio_flush(opj_bio_t *bio); |
| /** |
| Passes the ending bits (coming from flushing) |
| @param bio BIO handle |
| @return Returns 1 if successful, returns 0 otherwise |
| */ |
| int bio_inalign(opj_bio_t *bio); |
| /* ----------------------------------------------------------------------- */ |
| /*@}*/ |
| |
| /*@}*/ |
| |
| #endif /* __BIO_H */ |
| |
| Property changes: |
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| Added: svn:executable |
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| +* |
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| \ No newline at end of property |
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