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106 lines
3.7 KiB
106 lines
3.7 KiB
/* |
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* The copyright in this software is being made available under the 2-clauses |
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* BSD License, included below. This software may be subject to other third |
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* party and contributor rights, including patent rights, and no such rights |
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* are granted under this license. |
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* |
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* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium |
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* Copyright (c) 2002-2014, Professor Benoit Macq |
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* Copyright (c) 2003-2007, Francois-Olivier Devaux |
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* Copyright (c) 2003-2014, Antonin Descampe |
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* Copyright (c) 2005, Herve Drolon, FreeImage Team |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef __RAW_H |
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#define __RAW_H |
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/** |
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@file raw.h |
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@brief Implementation of operations for raw encoding (RAW) |
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The functions in RAW.C have for goal to realize the operation of raw encoding linked |
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with the corresponding mode switch. |
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*/ |
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/** @defgroup RAW RAW - Implementation of operations for raw encoding */ |
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/*@{*/ |
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/** |
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RAW encoding operations |
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*/ |
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typedef struct opj_raw { |
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/** temporary buffer where bits are coded or decoded */ |
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OPJ_BYTE c; |
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/** number of bits already read or free to write */ |
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OPJ_UINT32 ct; |
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/** maximum length to decode */ |
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OPJ_UINT32 lenmax; |
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/** length decoded */ |
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OPJ_UINT32 len; |
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/** pointer to the current position in the buffer */ |
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OPJ_BYTE *bp; |
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/** pointer to the start of the buffer */ |
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OPJ_BYTE *start; |
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/** pointer to the end of the buffer */ |
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OPJ_BYTE *end; |
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} opj_raw_t; |
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/** @name Exported functions */ |
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/*@{*/ |
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/* ----------------------------------------------------------------------- */ |
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/** |
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Create a new RAW handle |
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@return Returns a new RAW handle if successful, returns NULL otherwise |
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*/ |
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opj_raw_t* opj_raw_create(void); |
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/** |
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Destroy a previously created RAW handle |
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@param raw RAW handle to destroy |
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*/ |
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void opj_raw_destroy(opj_raw_t *raw); |
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/** |
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Return the number of bytes written/read since initialisation |
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@param raw RAW handle to destroy |
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@return Returns the number of bytes already encoded |
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*/ |
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OPJ_UINT32 opj_raw_numbytes(opj_raw_t *raw); |
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/** |
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Initialize the decoder |
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@param raw RAW handle |
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@param bp Pointer to the start of the buffer from which the bytes will be read |
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@param len Length of the input buffer |
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*/ |
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void opj_raw_init_dec(opj_raw_t *raw, OPJ_BYTE *bp, OPJ_UINT32 len); |
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/** |
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Decode a symbol using raw-decoder. Cfr p.506 TAUBMAN |
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@param raw RAW handle |
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@return Returns the decoded symbol (0 or 1) |
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*/ |
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OPJ_UINT32 opj_raw_decode(opj_raw_t *raw); |
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/* ----------------------------------------------------------------------- */ |
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/*@}*/ |
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/*@}*/ |
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#endif /* __RAW_H */
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