chromium/third_party/pdfium/third_party/libopenjpeg/mqc.c

/*
 * 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.
 */

#include "opj_includes.h"

#include <assert.h>

/** @defgroup MQC MQC - Implementation of an MQ-Coder */
/*@{*/

/** @name Local static functions */
/*@{*/

/**
Fill mqc->c with 1's for flushing
@param mqc MQC handle
*/
static void opj_mqc_setbits(opj_mqc_t *mqc);
/*@}*/

/*@}*/

/* <summary> */
/* This array defines all the possible states for a context. */
/* </summary> */
static const opj_mqc_state_t mqc_states[47 * 2] =;

/*
==========================================================
   local functions
==========================================================
*/

static void opj_mqc_setbits(opj_mqc_t *mqc)
{}

/*
==========================================================
   MQ-Coder interface
==========================================================
*/

OPJ_UINT32 opj_mqc_numbytes(opj_mqc_t *mqc)
{}

void opj_mqc_init_enc(opj_mqc_t *mqc, OPJ_BYTE *bp)
{}


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_get_extra_bytes(opj_mqc_t *mqc, OPJ_BOOL erterm)
{}

void opj_mqc_bypass_flush_enc(opj_mqc_t *mqc, OPJ_BOOL erterm)
{}

void opj_mqc_reset_enc(opj_mqc_t *mqc)
{}

#ifdef notdef
OPJ_UINT32 opj_mqc_restart_enc(opj_mqc_t *mqc)
{
    OPJ_UINT32 correction = 1;

    /* <flush part> */
    OPJ_INT32 n = (OPJ_INT32)(27 - 15 - mqc->ct);
    mqc->c <<= mqc->ct;
    while (n > 0) {
        opj_mqc_byteout(mqc);
        n -= (OPJ_INT32)mqc->ct;
        mqc->c <<= mqc->ct;
    }
    opj_mqc_byteout(mqc);

    return correction;
}
#endif

void opj_mqc_restart_init_enc(opj_mqc_t *mqc)
{}

void opj_mqc_erterm_enc(opj_mqc_t *mqc)
{}

/**
Encode the most probable symbol
@param mqc MQC handle
*/
static INLINE void opj_mqc_codemps(opj_mqc_t *mqc)
{}

/**
Encode the most least symbol
@param mqc MQC handle
*/
static INLINE void opj_mqc_codelps(opj_mqc_t *mqc)
{}

/**
Encode a symbol using the MQ-coder
@param mqc MQC handle
@param d The symbol to be encoded (0 or 1)
*/
static INLINE void opj_mqc_encode(opj_mqc_t *mqc, OPJ_UINT32 d)
{}

void opj_mqc_segmark_enc(opj_mqc_t *mqc)
{}

static void opj_mqc_init_dec_common(opj_mqc_t *mqc,
                                    OPJ_BYTE *bp,
                                    OPJ_UINT32 len,
                                    OPJ_UINT32 extra_writable_bytes)
{}
void opj_mqc_init_dec(opj_mqc_t *mqc, OPJ_BYTE *bp, OPJ_UINT32 len,
                      OPJ_UINT32 extra_writable_bytes)
{}


void opj_mqc_raw_init_dec(opj_mqc_t *mqc, OPJ_BYTE *bp, OPJ_UINT32 len,
                          OPJ_UINT32 extra_writable_bytes)
{}


void opq_mqc_finish_dec(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_byteout(opj_mqc_t *mqc)
{}