openjpeg/libopenjpeg/bio.h

/*
 * Copyright (c) 2001-2002, David Janssens
 * Copyright (c) 2003, Yannick Verschueren
 * Copyright (c) 2003,  Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
 * 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

/*
 * Number of bytes written.
 */ 
int bio_numbytes();

/*
 * Init encoder.
 *
 * bp  : Output buffer
 * len : Output buffer length 
 */
void bio_init_enc(unsigned char *bp, int len);

/*
 * Init decoder.
 *
 * bp  : Input buffer
 * len : Input buffer length
 */
void bio_init_dec(unsigned char *bp, int len);

/*
 * Write bits.
 *
 * v  : Value of bits
 * n  : Number of bits to write
 */
void bio_write(int v, int n);

/*
 * Read bits. 
 *
 * n : Number of bits to read 
 */
int bio_read(int n);

/*
 * Flush bits. Modified to eliminate longjmp !!
 */
int bio_flush();

int bio_inalign();  /* modified to eliminated longjmp !! */

#endif