forked from KolibriOS/kolibrios
100 lines
3.5 KiB
C
Executable File
100 lines
3.5 KiB
C
Executable File
/*
|
|
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
|
|
* Copyright (c) 2005, Hervé 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 */
|