mqc.h

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/*
 * The copyright in this software is being made available under the 2-clauses 
 * BSD License, included below. This software may be subject to other third 
 * party and contributor rights, including patent rights, and no such rights
 * are granted under this license.
 *
 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
 * Copyright (c) 2002-2014, Professor Benoit Macq
 * Copyright (c) 2001-2003, David Janssens
 * Copyright (c) 2002-2003, Yannick Verschueren
 * Copyright (c) 2003-2007, Francois-Olivier Devaux 
 * Copyright (c) 2003-2014, Antonin Descampe
 * Copyright (c) 2005, Herve Drolon, FreeImage Team
 * Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
 * 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 __MQC_H
#define __MQC_H


typedef struct opj_mqc_state {
        OPJ_UINT32 qeval;
        OPJ_UINT32 mps;
        struct opj_mqc_state *nmps;
        struct opj_mqc_state *nlps;
} opj_mqc_state_t;

#define MQC_NUMCTXS 19

typedef struct opj_mqc {
        OPJ_UINT32 c;
        OPJ_UINT32 a;
        OPJ_UINT32 ct;
        OPJ_BYTE *bp;
        OPJ_BYTE *start;
        OPJ_BYTE *end;
        opj_mqc_state_t *ctxs[MQC_NUMCTXS];
        opj_mqc_state_t **curctx;
#ifdef MQC_PERF_OPT
        unsigned char *buffer;
#endif
} opj_mqc_t;

/* ----------------------------------------------------------------------- */
opj_mqc_t* opj_mqc_create(void);
void opj_mqc_destroy(opj_mqc_t *mqc);
OPJ_UINT32 opj_mqc_numbytes(opj_mqc_t *mqc);
void opj_mqc_resetstates(opj_mqc_t *mqc);
void opj_mqc_setstate(opj_mqc_t *mqc, OPJ_UINT32 ctxno, OPJ_UINT32 msb, OPJ_INT32 prob);
void opj_mqc_init_enc(opj_mqc_t *mqc, OPJ_BYTE *bp);
#define opj_mqc_setcurctx(mqc, ctxno)   (mqc)->curctx = &(mqc)->ctxs[(OPJ_UINT32)(ctxno)]

void opj_mqc_encode(opj_mqc_t *mqc, OPJ_UINT32 d);
void opj_mqc_flush(opj_mqc_t *mqc);
void opj_mqc_bypass_init_enc(opj_mqc_t *mqc);
void opj_mqc_bypass_enc(opj_mqc_t *mqc, OPJ_UINT32 d);
OPJ_UINT32 opj_mqc_bypass_flush_enc(opj_mqc_t *mqc);
void opj_mqc_reset_enc(opj_mqc_t *mqc);
OPJ_UINT32 opj_mqc_restart_enc(opj_mqc_t *mqc);
void opj_mqc_restart_init_enc(opj_mqc_t *mqc);
void opj_mqc_erterm_enc(opj_mqc_t *mqc);
void opj_mqc_segmark_enc(opj_mqc_t *mqc);
OPJ_BOOL opj_mqc_init_dec(opj_mqc_t *mqc, OPJ_BYTE *bp, OPJ_UINT32 len);
OPJ_INT32 opj_mqc_decode(opj_mqc_t * const mqc);
/* ----------------------------------------------------------------------- */

#endif /* __MQC_H */