Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/openjpeg/src/lib/openjp2/tgt.h @ 17:dd9cdb856310

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Remove PKG-INFO from the because it is regenerated automatically for the sdist
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 18 Sep 2025 17:40:40 +0200
parents b50eed0cc0ef
children
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1 /*
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2 * The copyright in this software is being made available under the 2-clauses
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3 * BSD License, included below. This software may be subject to other third
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4 * party and contributor rights, including patent rights, and no such rights
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5 * are granted under this license.
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6 *
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7 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
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8 * Copyright (c) 2002-2014, Professor Benoit Macq
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9 * Copyright (c) 2001-2003, David Janssens
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10 * Copyright (c) 2002-2003, Yannick Verschueren
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11 * Copyright (c) 2003-2007, Francois-Olivier Devaux
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12 * Copyright (c) 2003-2014, Antonin Descampe
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13 * Copyright (c) 2005, Herve Drolon, FreeImage Team
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14 * Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
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15 * Copyright (c) 2011-2012, Centre National d'Etudes Spatiales (CNES), France
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16 * Copyright (c) 2012, CS Systemes d'Information, France
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17 * All rights reserved.
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18 *
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19 * Redistribution and use in source and binary forms, with or without
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20 * modification, are permitted provided that the following conditions
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21 * are met:
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22 * 1. Redistributions of source code must retain the above copyright
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23 * notice, this list of conditions and the following disclaimer.
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24 * 2. Redistributions in binary form must reproduce the above copyright
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25 * notice, this list of conditions and the following disclaimer in the
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26 * documentation and/or other materials provided with the distribution.
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27 *
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28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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29 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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31 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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32 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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38 * POSSIBILITY OF SUCH DAMAGE.
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39 */
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40
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41 #ifndef OPJ_TGT_H
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42 #define OPJ_TGT_H
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43 /**
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44 @file tgt.h
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45 @brief Implementation of a tag-tree coder (TGT)
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46
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47 The functions in TGT.C have for goal to realize a tag-tree coder. The functions in TGT.C
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48 are used by some function in T2.C.
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49 */
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50
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51 /** @defgroup TGT TGT - Implementation of a tag-tree coder */
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52 /*@{*/
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53
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54 /**
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55 Tag node
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56 */
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57 typedef struct opj_tgt_node {
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58 struct opj_tgt_node *parent;
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59 OPJ_INT32 value;
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60 OPJ_INT32 low;
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61 OPJ_UINT32 known;
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62 } opj_tgt_node_t;
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64 /**
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65 Tag tree
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66 */
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67 typedef struct opj_tgt_tree {
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68 OPJ_UINT32 numleafsh;
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69 OPJ_UINT32 numleafsv;
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70 OPJ_UINT32 numnodes;
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71 opj_tgt_node_t *nodes;
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72 OPJ_UINT32 nodes_size; /* maximum size taken by nodes */
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73 } opj_tgt_tree_t;
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74
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75
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76 /** @name Exported functions */
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77 /*@{*/
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78 /* ----------------------------------------------------------------------- */
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79 /**
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80 Create a tag-tree
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81 @param numleafsh Width of the array of leafs of the tree
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82 @param numleafsv Height of the array of leafs of the tree
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83 @param p_manager the event manager
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84 @return Returns a new tag-tree if successful, returns NULL otherwise
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85 */
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86 opj_tgt_tree_t *opj_tgt_create(OPJ_UINT32 numleafsh, OPJ_UINT32 numleafsv,
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87 opj_event_mgr_t *p_manager);
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88
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89 /**
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90 * Reinitialises a tag-tree from an exixting one.
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91 *
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92 * @param p_tree the tree to reinitialize.
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93 * @param p_num_leafs_h the width of the array of leafs of the tree
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94 * @param p_num_leafs_v the height of the array of leafs of the tree
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95 * @param p_manager the event manager
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96 * @return a new tag-tree if successful, NULL otherwise
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97 */
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98 opj_tgt_tree_t *opj_tgt_init(opj_tgt_tree_t * p_tree,
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99 OPJ_UINT32 p_num_leafs_h,
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100 OPJ_UINT32 p_num_leafs_v, opj_event_mgr_t *p_manager);
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101 /**
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102 Destroy a tag-tree, liberating memory
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103 @param tree Tag-tree to destroy
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104 */
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105 void opj_tgt_destroy(opj_tgt_tree_t *tree);
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106 /**
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107 Reset a tag-tree (set all leaves to 0)
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108 @param tree Tag-tree to reset
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109 */
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110 void opj_tgt_reset(opj_tgt_tree_t *tree);
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111 /**
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112 Set the value of a leaf of a tag-tree
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113 @param tree Tag-tree to modify
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114 @param leafno Number that identifies the leaf to modify
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115 @param value New value of the leaf
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116 */
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117 void opj_tgt_setvalue(opj_tgt_tree_t *tree,
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118 OPJ_UINT32 leafno,
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119 OPJ_INT32 value);
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120 /**
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121 Encode the value of a leaf of the tag-tree up to a given threshold
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122 @param bio Pointer to a BIO handle
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123 @param tree Tag-tree to modify
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124 @param leafno Number that identifies the leaf to encode
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125 @param threshold Threshold to use when encoding value of the leaf
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126 */
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127 void opj_tgt_encode(opj_bio_t *bio,
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128 opj_tgt_tree_t *tree,
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129 OPJ_UINT32 leafno,
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130 OPJ_INT32 threshold);
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131 /**
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132 Decode the value of a leaf of the tag-tree up to a given threshold
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133 @param bio Pointer to a BIO handle
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134 @param tree Tag-tree to decode
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135 @param leafno Number that identifies the leaf to decode
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136 @param threshold Threshold to use when decoding value of the leaf
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137 @return Returns 1 if the node's value < threshold, returns 0 otherwise
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138 */
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139 OPJ_UINT32 opj_tgt_decode(opj_bio_t *bio,
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140 opj_tgt_tree_t *tree,
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141 OPJ_UINT32 leafno,
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142 OPJ_INT32 threshold);
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143 /* ----------------------------------------------------------------------- */
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144 /*@}*/
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145
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146 /*@}*/
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147
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148 #endif /* OPJ_TGT_H */