Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/openjpeg/src/lib/openjp2/t1.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) 2012, Carl Hetherington
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15 * Copyright (c) 2017, IntoPIX SA <support@intopix.com>
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16 * All rights reserved.
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17 *
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18 * Redistribution and use in source and binary forms, with or without
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19 * modification, are permitted provided that the following conditions
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20 * are met:
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21 * 1. Redistributions of source code must retain the above copyright
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22 * notice, this list of conditions and the following disclaimer.
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23 * 2. Redistributions in binary form must reproduce the above copyright
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24 * notice, this list of conditions and the following disclaimer in the
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25 * documentation and/or other materials provided with the distribution.
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26 *
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27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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28 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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30 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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31 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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37 * POSSIBILITY OF SUCH DAMAGE.
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38 */
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39 #ifndef OPJ_T1_H
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40 #define OPJ_T1_H
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41 /**
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42 @file t1.h
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43 @brief Implementation of the tier-1 coding (coding of code-block coefficients) (T1)
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44
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45 The functions in T1.C have for goal to realize the tier-1 coding operation. The functions
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46 in T1.C are used by some function in TCD.C.
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47 */
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49 /** @defgroup T1 T1 - Implementation of the tier-1 coding */
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50 /*@{*/
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51
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52 /* ----------------------------------------------------------------------- */
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53 #define T1_NMSEDEC_BITS 7
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54
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55 #define T1_NUMCTXS_ZC 9
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56 #define T1_NUMCTXS_SC 5
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57 #define T1_NUMCTXS_MAG 3
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58 #define T1_NUMCTXS_AGG 1
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59 #define T1_NUMCTXS_UNI 1
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60
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61 #define T1_CTXNO_ZC 0
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62 #define T1_CTXNO_SC (T1_CTXNO_ZC+T1_NUMCTXS_ZC)
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63 #define T1_CTXNO_MAG (T1_CTXNO_SC+T1_NUMCTXS_SC)
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64 #define T1_CTXNO_AGG (T1_CTXNO_MAG+T1_NUMCTXS_MAG)
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65 #define T1_CTXNO_UNI (T1_CTXNO_AGG+T1_NUMCTXS_AGG)
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66 #define T1_NUMCTXS (T1_CTXNO_UNI+T1_NUMCTXS_UNI)
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68 #define T1_NMSEDEC_FRACBITS (T1_NMSEDEC_BITS-1)
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69
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70 #define T1_TYPE_MQ 0 /**< Normal coding using entropy coder */
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71 #define T1_TYPE_RAW 1 /**< No encoding the information is store under raw format in codestream (mode switch RAW)*/
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73 /* BEGINNING of flags that apply to opj_flag_t */
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74 /** We hold the state of individual data points for the T1 encoder using
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75 * a single 32-bit flags word to hold the state of 4 data points. This corresponds
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76 * to the 4-point-high columns that the data is processed in.
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77 *
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78 * These \#defines declare the layout of a 32-bit flags word.
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79 *
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80 * This is currently done for encoding only.
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81 * The values must NOT be changed, otherwise this is going to break a lot of
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82 * assumptions.
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83 */
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84
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85 /* SIGMA: significance state (3 cols x 6 rows)
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86 * CHI: state for negative sample value (1 col x 6 rows)
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87 * MU: state for visited in refinement pass (1 col x 4 rows)
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88 * PI: state for visited in significance pass (1 col * 4 rows)
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89 */
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90
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91 #define T1_SIGMA_0 (1U << 0)
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92 #define T1_SIGMA_1 (1U << 1)
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93 #define T1_SIGMA_2 (1U << 2)
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94 #define T1_SIGMA_3 (1U << 3)
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95 #define T1_SIGMA_4 (1U << 4)
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96 #define T1_SIGMA_5 (1U << 5)
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97 #define T1_SIGMA_6 (1U << 6)
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98 #define T1_SIGMA_7 (1U << 7)
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99 #define T1_SIGMA_8 (1U << 8)
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100 #define T1_SIGMA_9 (1U << 9)
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101 #define T1_SIGMA_10 (1U << 10)
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102 #define T1_SIGMA_11 (1U << 11)
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103 #define T1_SIGMA_12 (1U << 12)
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104 #define T1_SIGMA_13 (1U << 13)
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105 #define T1_SIGMA_14 (1U << 14)
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106 #define T1_SIGMA_15 (1U << 15)
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107 #define T1_SIGMA_16 (1U << 16)
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108 #define T1_SIGMA_17 (1U << 17)
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109
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110 #define T1_CHI_0 (1U << 18)
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111 #define T1_CHI_0_I 18
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112 #define T1_CHI_1 (1U << 19)
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113 #define T1_CHI_1_I 19
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114 #define T1_MU_0 (1U << 20)
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115 #define T1_PI_0 (1U << 21)
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116 #define T1_CHI_2 (1U << 22)
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117 #define T1_CHI_2_I 22
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118 #define T1_MU_1 (1U << 23)
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119 #define T1_PI_1 (1U << 24)
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120 #define T1_CHI_3 (1U << 25)
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121 #define T1_MU_2 (1U << 26)
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122 #define T1_PI_2 (1U << 27)
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123 #define T1_CHI_4 (1U << 28)
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124 #define T1_MU_3 (1U << 29)
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125 #define T1_PI_3 (1U << 30)
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126 #define T1_CHI_5 (1U << 31)
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127 #define T1_CHI_5_I 31
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128
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129 /** As an example, the bits T1_SIGMA_3, T1_SIGMA_4 and T1_SIGMA_5
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130 * indicate the significance state of the west neighbour of data point zero
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131 * of our four, the point itself, and its east neighbour respectively.
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132 * Many of the bits are arranged so that given a flags word, you can
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133 * look at the values for the data point 0, then shift the flags
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134 * word right by 3 bits and look at the same bit positions to see the
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135 * values for data point 1.
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136 *
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137 * The \#defines below help a bit with this; say you have a flags word
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138 * f, you can do things like
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139 *
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140 * (f & T1_SIGMA_THIS)
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141 *
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142 * to see the significance bit of data point 0, then do
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143 *
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144 * ((f >> 3) & T1_SIGMA_THIS)
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145 *
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146 * to see the significance bit of data point 1.
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147 */
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148
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149 #define T1_SIGMA_NW T1_SIGMA_0
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150 #define T1_SIGMA_N T1_SIGMA_1
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151 #define T1_SIGMA_NE T1_SIGMA_2
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152 #define T1_SIGMA_W T1_SIGMA_3
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153 #define T1_SIGMA_THIS T1_SIGMA_4
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154 #define T1_SIGMA_E T1_SIGMA_5
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155 #define T1_SIGMA_SW T1_SIGMA_6
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156 #define T1_SIGMA_S T1_SIGMA_7
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157 #define T1_SIGMA_SE T1_SIGMA_8
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158 #define T1_SIGMA_NEIGHBOURS (T1_SIGMA_NW | T1_SIGMA_N | T1_SIGMA_NE | T1_SIGMA_W | T1_SIGMA_E | T1_SIGMA_SW | T1_SIGMA_S | T1_SIGMA_SE)
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159
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160 #define T1_CHI_THIS T1_CHI_1
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161 #define T1_CHI_THIS_I T1_CHI_1_I
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162 #define T1_MU_THIS T1_MU_0
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163 #define T1_PI_THIS T1_PI_0
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164 #define T1_CHI_S T1_CHI_2
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165
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166 #define T1_LUT_SGN_W (1U << 0)
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167 #define T1_LUT_SIG_N (1U << 1)
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168 #define T1_LUT_SGN_E (1U << 2)
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169 #define T1_LUT_SIG_W (1U << 3)
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170 #define T1_LUT_SGN_N (1U << 4)
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171 #define T1_LUT_SIG_E (1U << 5)
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172 #define T1_LUT_SGN_S (1U << 6)
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173 #define T1_LUT_SIG_S (1U << 7)
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174 /* END of flags that apply to opj_flag_t */
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175
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176 /* ----------------------------------------------------------------------- */
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177
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178 /** Flags for 4 consecutive rows of a column */
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179 typedef OPJ_UINT32 opj_flag_t;
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180
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181 /**
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182 Tier-1 coding (coding of code-block coefficients)
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183 */
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184 typedef struct opj_t1 {
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185
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186 /** MQC component */
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187 opj_mqc_t mqc;
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188
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189 OPJ_INT32 *data;
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190 /** Flags used by decoder and encoder.
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191 * Such that flags[1+0] is for state of col=0,row=0..3,
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192 flags[1+1] for col=1, row=0..3, flags[1+flags_stride] for col=0,row=4..7, ...
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193 This array avoids too much cache trashing when processing by 4 vertical samples
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194 as done in the various decoding steps. */
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195 opj_flag_t *flags;
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196
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197 OPJ_UINT32 w;
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198 OPJ_UINT32 h;
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199 OPJ_UINT32 datasize;
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200 OPJ_UINT32 flagssize;
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201 OPJ_BOOL encoder;
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202
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203 /* The 3 variables below are only used by the decoder */
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204 /* set to TRUE in multithreaded context */
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205 OPJ_BOOL mustuse_cblkdatabuffer;
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206 /* Temporary buffer to concatenate all chunks of a codebock */
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207 OPJ_BYTE *cblkdatabuffer;
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208 /* Maximum size available in cblkdatabuffer */
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209 OPJ_UINT32 cblkdatabuffersize;
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210 } opj_t1_t;
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211
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212 /** @name Exported functions */
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213 /*@{*/
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214 /* ----------------------------------------------------------------------- */
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215
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216 /**
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217 Encode the code-blocks of a tile
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218 @param tcd TCD handle
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219 @param tile The tile to encode
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220 @param tcp Tile coding parameters
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221 @param mct_norms FIXME DOC
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222 @param mct_numcomps Number of components used for MCT
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223 */
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224 OPJ_BOOL opj_t1_encode_cblks(opj_tcd_t* tcd,
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225 opj_tcd_tile_t *tile,
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226 opj_tcp_t *tcp,
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227 const OPJ_FLOAT64 * mct_norms,
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228 OPJ_UINT32 mct_numcomps);
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229
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230 /**
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231 Decode the code-blocks of a tile
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232 @param tcd TCD handle
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233 @param pret Pointer to return value
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234 @param tilec The tile to decode
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235 @param tccp Tile coding parameters
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236 @param p_manager the event manager
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237 @param p_manager_mutex mutex for the event manager
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238 @param check_pterm whether PTERM correct termination should be checked
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239 */
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240 void opj_t1_decode_cblks(opj_tcd_t* tcd,
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241 volatile OPJ_BOOL* pret,
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242 opj_tcd_tilecomp_t* tilec,
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243 opj_tccp_t* tccp,
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244 opj_event_mgr_t *p_manager,
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245 opj_mutex_t* p_manager_mutex,
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246 OPJ_BOOL check_pterm);
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247
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248
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249
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250 /**
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251 * Creates a new Tier 1 handle
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252 * and initializes the look-up tables of the Tier-1 coder/decoder
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253 * @return a new T1 handle if successful, returns NULL otherwise
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254 */
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255 opj_t1_t* opj_t1_create(OPJ_BOOL isEncoder);
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256
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257 /**
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258 * Destroys a previously created T1 handle
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259 *
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260 * @param p_t1 Tier 1 handle to destroy
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261 */
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262 void opj_t1_destroy(opj_t1_t *p_t1);
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263 /* ----------------------------------------------------------------------- */
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264 /*@}*/
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265
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266 /*@}*/
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267
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268 #endif /* OPJ_T1_H */