0,0 → 1,100 |
/* |
* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium |
* Copyright (c) 2002-2007, Professor Benoit Macq |
* 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 __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 Exported functions */ |
/*@{*/ |
/* ----------------------------------------------------------------------- */ |
/** |
Create a new RAW handle |
@return Returns a new RAW handle if successful, returns NULL otherwise |
*/ |
opj_raw_t* raw_create(void); |
/** |
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 */ |