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 __CIO_H 33#define __CIO_H 34 35#if defined(_MSC_VER) || defined(__BORLANDC__) 36#define int64 __int64 37#else 38#define int64 long long 39#endif 40 41/** 42@file cio.h 43@brief Implementation of a byte input-output process (CIO) 44 45The functions in CIO.C have for goal to realize a byte input / output process. 46*/ 47 48/** @defgroup CIO CIO - byte input-output stream */ 49/*@{*/ 50 51/** @name Exported functions (see also openjpeg.h) */ 52/*@{*/ 53/* ----------------------------------------------------------------------- */ 54/** 55Number of bytes left before the end of the stream 56@param cio CIO handle 57@return Returns the number of bytes before the end of the stream 58*/ 59int cio_numbytesleft(opj_cio_t *cio); 60/** 61Get pointer to the current position in the stream 62@param cio CIO handle 63@return Returns a pointer to the current position 64*/ 65unsigned char *cio_getbp(opj_cio_t *cio); 66/** 67Write some bytes 68@param cio CIO handle 69@param v Value to write 70@param n Number of bytes to write 71@return Returns the number of bytes written or 0 if an error occured 72*/ 73unsigned int cio_write(opj_cio_t *cio, unsigned int64 v, int n); 74/** 75Read some bytes 76@param cio CIO handle 77@param n Number of bytes to read 78@return Returns the value of the n bytes read 79*/ 80unsigned int cio_read(opj_cio_t *cio, int n); 81/** 82Skip some bytes 83@param cio CIO handle 84@param n Number of bytes to skip 85*/ 86void cio_skip(opj_cio_t *cio, int n); 87/* ----------------------------------------------------------------------- */ 88/*@}*/ 89 90/*@}*/ 91 92#endif /* __CIO_H */ 93 94