tgt.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>
 * Copyright (c) 2011-2012, Centre National d'Etudes Spatiales (CNES), France 
 * Copyright (c) 2012, CS Systemes d'Information, France
 * 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 __TGT_H
#define __TGT_H


typedef struct opj_tgt_node {
    struct opj_tgt_node *parent;
    OPJ_INT32 value;
    OPJ_INT32 low;
    OPJ_UINT32 known;
} opj_tgt_node_t;

typedef struct opj_tgt_tree
{
        OPJ_UINT32  numleafsh;
        OPJ_UINT32  numleafsv;
        OPJ_UINT32 numnodes;
        opj_tgt_node_t *nodes;
        OPJ_UINT32  nodes_size;         /* maximum size taken by nodes */
} opj_tgt_tree_t;


/* ----------------------------------------------------------------------- */
opj_tgt_tree_t *opj_tgt_create(OPJ_UINT32 numleafsh, OPJ_UINT32 numleafsv);

opj_tgt_tree_t *opj_tgt_init(opj_tgt_tree_t * p_tree, 
                             OPJ_UINT32  p_num_leafs_h, 
                             OPJ_UINT32  p_num_leafs_v);
void opj_tgt_destroy(opj_tgt_tree_t *tree);
void opj_tgt_reset(opj_tgt_tree_t *tree);
void opj_tgt_setvalue(opj_tgt_tree_t *tree, 
                      OPJ_UINT32 leafno, 
                      OPJ_INT32 value);
void opj_tgt_encode(opj_bio_t *bio, 
                    opj_tgt_tree_t *tree, 
                    OPJ_UINT32 leafno, 
                    OPJ_INT32 threshold);
OPJ_UINT32 opj_tgt_decode(opj_bio_t *bio, 
                          opj_tgt_tree_t *tree, 
                          OPJ_UINT32 leafno, 
                          OPJ_INT32 threshold);
/* ----------------------------------------------------------------------- */

#endif /* __TGT_H */