OpenJPEG 2.1.0

byte_manager.h

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00001 /*
00002  * $Id: byte_manager.h 2835 2014-04-03 15:30:57Z antonin $
00003  *
00004  * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
00005  * Copyright (c) 2002-2014, Professor Benoit Macq
00006  * Copyright (c) 2010-2011, Kaori Hagihara
00007  * All rights reserved.
00008  *
00009  * Redistribution and use in source and binary forms, with or without
00010  * modification, are permitted provided that the following conditions
00011  * are met:
00012  * 1. Redistributions of source code must retain the above copyright
00013  *    notice, this list of conditions and the following disclaimer.
00014  * 2. Redistributions in binary form must reproduce the above copyright
00015  *    notice, this list of conditions and the following disclaimer in the
00016  *    documentation and/or other materials provided with the distribution.
00017  *
00018  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
00019  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00020  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00021  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00022  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00023  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00024  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00025  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00026  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00027  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00028  * POSSIBILITY OF SUCH DAMAGE.
00029  */
00030 
00031 #ifndef         BYTE_MANAGER_H_
00032 #define         BYTE_MANAGER_H_
00033 
00034 #include <stddef.h>
00035 #include "openjpeg.h"
00036 #include "opj_stdint.h"
00037 typedef uint8_t Byte_t;
00038 typedef uint16_t Byte2_t;
00039 typedef uint32_t Byte4_t;
00040 typedef uint64_t Byte8_t;
00041 
00050 Byte_t * fetch_bytes( int fd, OPJ_OFF_T offset, OPJ_SIZE_T size);
00051 
00052 
00060 Byte_t fetch_1byte( int fd, OPJ_OFF_T offset);
00061 
00069 Byte2_t fetch_2bytebigendian( int fd, OPJ_OFF_T offset);
00070 
00078 Byte4_t fetch_4bytebigendian( int fd, OPJ_OFF_T offset);
00079 
00087 Byte8_t fetch_8bytebigendian( int fd, OPJ_OFF_T offset);
00088 
00089 
00096 Byte2_t big2( Byte_t *buf);
00097 
00104 Byte4_t big4( Byte_t *buf);
00105 
00112 Byte8_t big8( Byte_t *buf);
00113 
00120 void modify_4Bytecode( Byte4_t code, Byte_t *stream);
00121 
00128 OPJ_OFF_T get_filesize( int fd);
00129 
00130 #endif      /* !BYTE_MANAGER_H_ */