/* | |
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe | |
* Copyright (c) 2005, Herve Drolon, FreeImage Team | |
* Copyright (c) 2002-2005, 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 __RAW_H | |
#define __RAW_H | |
/** | |
@file raw.h | |
@brief Implementation of operations for raw encoding (RAW) | |
The functions in RAW.C have for goal to realize the operation of raw encoding linked | |
with the corresponding mode switch. | |
*/ | |
/** @defgroup RAW RAW - Implementation of operations for raw encoding */ | |
/*@{*/ | |
/** | |
RAW encoding operations | |
*/ | |
typedef struct opj_raw { | |
/** Temporary buffer where bits are coded or decoded */ | |
unsigned char c; | |
/** Number of bits already read or free to write */ | |
unsigned int ct; | |
/** Maximum length to decode */ | |
unsigned int lenmax; | |
/** Length decoded */ | |
unsigned int len; | |
/** Pointer to the current position in the buffer */ | |
unsigned char *bp; | |
/** Pointer to the start of the buffer */ | |
unsigned char *start; | |
/** Pointer to the end of the buffer */ | |
unsigned char *end; | |
} opj_raw_t; | |
/** @name Funciones generales */ | |
/*@{*/ | |
/* ----------------------------------------------------------------------- */ | |
/** | |
Create a new RAW handle | |
@return Returns a new RAW handle if successful, returns NULL otherwise | |
*/ | |
opj_raw_t* raw_create(); | |
/** | |
Destroy a previously created RAW handle | |
@param raw RAW handle to destroy | |
*/ | |
void raw_destroy(opj_raw_t *raw); | |
/** | |
Return the number of bytes written/read since initialisation | |
@param raw RAW handle to destroy | |
@return Returns the number of bytes already encoded | |
*/ | |
int raw_numbytes(opj_raw_t *raw); | |
/** | |
Initialize the decoder | |
@param raw RAW handle | |
@param bp Pointer to the start of the buffer from which the bytes will be read | |
@param len Length of the input buffer | |
*/ | |
void raw_init_dec(opj_raw_t *raw, unsigned char *bp, int len); | |
/** | |
Decode a symbol using raw-decoder. Cfr p.506 TAUBMAN | |
@param raw RAW handle | |
@return Returns the decoded symbol (0 or 1) | |
*/ | |
int raw_decode(opj_raw_t *raw); | |
/* ----------------------------------------------------------------------- */ | |
/*@}*/ | |
/*@}*/ | |
#endif /* __RAW_H */ |