Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/openjpeg/src/lib/openjp2/mqc_inl.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 * All rights reserved.
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16 *
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17 * Redistribution and use in source and binary forms, with or without
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18 * modification, are permitted provided that the following conditions
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19 * are met:
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20 * 1. Redistributions of source code must retain the above copyright
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21 * notice, this list of conditions and the following disclaimer.
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22 * 2. Redistributions in binary form must reproduce the above copyright
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23 * notice, this list of conditions and the following disclaimer in the
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24 * documentation and/or other materials provided with the distribution.
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25 *
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26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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27 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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29 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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30 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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36 * POSSIBILITY OF SUCH DAMAGE.
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37 */
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38
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39 #ifndef OPJ_MQC_INL_H
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40 #define OPJ_MQC_INL_H
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41
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42 /* For internal use of opj_mqc_decode_macro() */
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43 #define opj_mqc_mpsexchange_macro(d, curctx, a) \
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44 { \
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45 if (a < (*curctx)->qeval) { \
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46 d = !((*curctx)->mps); \
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47 *curctx = (*curctx)->nlps; \
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48 } else { \
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49 d = (*curctx)->mps; \
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50 *curctx = (*curctx)->nmps; \
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51 } \
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52 }
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53
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54 /* For internal use of opj_mqc_decode_macro() */
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55 #define opj_mqc_lpsexchange_macro(d, curctx, a) \
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56 { \
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57 if (a < (*curctx)->qeval) { \
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58 a = (*curctx)->qeval; \
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59 d = (*curctx)->mps; \
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60 *curctx = (*curctx)->nmps; \
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61 } else { \
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62 a = (*curctx)->qeval; \
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63 d = !((*curctx)->mps); \
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64 *curctx = (*curctx)->nlps; \
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65 } \
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66 }
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67
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68
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69 /**
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70 Decode a symbol using raw-decoder. Cfr p.506 TAUBMAN
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71 @param mqc MQC handle
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72 @return Returns the decoded symbol (0 or 1)
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73 */
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74 static INLINE OPJ_UINT32 opj_mqc_raw_decode(opj_mqc_t *mqc)
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75 {
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76 OPJ_UINT32 d;
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77 if (mqc->ct == 0) {
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78 /* Given opj_mqc_raw_init_dec() we know that at some point we will */
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79 /* have a 0xFF 0xFF artificial marker */
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80 if (mqc->c == 0xff) {
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81 if (*mqc->bp > 0x8f) {
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82 mqc->c = 0xff;
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83 mqc->ct = 8;
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84 } else {
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85 mqc->c = *mqc->bp;
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86 mqc->bp ++;
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87 mqc->ct = 7;
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88 }
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89 } else {
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90 mqc->c = *mqc->bp;
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91 mqc->bp ++;
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92 mqc->ct = 8;
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93 }
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94 }
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95 mqc->ct--;
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96 d = ((OPJ_UINT32)mqc->c >> mqc->ct) & 0x01U;
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97
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diff changeset
98 return d;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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99 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
100
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
101
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diff changeset
102 #define opj_mqc_bytein_macro(mqc, c, ct) \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
103 { \
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diff changeset
104 OPJ_UINT32 l_c; \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
105 /* Given opj_mqc_init_dec() we know that at some point we will */ \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
106 /* have a 0xFF 0xFF artificial marker */ \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
107 l_c = *(mqc->bp + 1); \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
108 if (*mqc->bp == 0xff) { \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
109 if (l_c > 0x8f) { \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
110 c += 0xff00; \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
111 ct = 8; \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
112 mqc->end_of_byte_stream_counter ++; \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
113 } else { \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
114 mqc->bp++; \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
115 c += l_c << 9; \
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116 ct = 7; \
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117 } \
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diff changeset
118 } else { \
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119 mqc->bp++; \
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120 c += l_c << 8; \
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121 ct = 8; \
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122 } \
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123 }
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124
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125 /* For internal use of opj_mqc_decode_macro() */
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diff changeset
126 #define opj_mqc_renormd_macro(mqc, a, c, ct) \
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127 { \
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diff changeset
128 do { \
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129 if (ct == 0) { \
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parents:
diff changeset
130 opj_mqc_bytein_macro(mqc, c, ct); \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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131 } \
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diff changeset
132 a <<= 1; \
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parents:
diff changeset
133 c <<= 1; \
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134 ct--; \
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parents:
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135 } while (a < 0x8000); \
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parents:
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136 }
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137
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diff changeset
138 #define opj_mqc_decode_macro(d, mqc, curctx, a, c, ct) \
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139 { \
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140 /* Implements ISO 15444-1 C.3.2 Decoding a decision (DECODE) */ \
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parents:
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141 /* Note: alternate "J.2 - Decoding an MPS or an LPS in the */ \
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parents:
diff changeset
142 /* software-conventions decoder" has been tried, but does not bring any */ \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
143 /* improvement. See https://github.com/uclouvain/openjpeg/issues/921 */ \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
144 a -= (*curctx)->qeval; \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
145 if ((c >> 16) < (*curctx)->qeval) { \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
146 opj_mqc_lpsexchange_macro(d, curctx, a); \
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parents:
diff changeset
147 opj_mqc_renormd_macro(mqc, a, c, ct); \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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148 } else { \
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parents:
diff changeset
149 c -= (*curctx)->qeval << 16; \
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parents:
diff changeset
150 if ((a & 0x8000) == 0) { \
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parents:
diff changeset
151 opj_mqc_mpsexchange_macro(d, curctx, a); \
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parents:
diff changeset
152 opj_mqc_renormd_macro(mqc, a, c, ct); \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
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153 } else { \
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parents:
diff changeset
154 d = (*curctx)->mps; \
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155 } \
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parents:
diff changeset
156 } \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
157 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
158
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
159 #define DOWNLOAD_MQC_VARIABLES(mqc, curctx, a, c, ct) \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
160 register const opj_mqc_state_t **curctx = mqc->curctx; \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
161 register OPJ_UINT32 c = mqc->c; \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
162 register OPJ_UINT32 a = mqc->a; \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
163 register OPJ_UINT32 ct = mqc->ct
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parents:
diff changeset
164
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
165 #define UPLOAD_MQC_VARIABLES(mqc, curctx, a, c, ct) \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
166 mqc->curctx = curctx; \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
167 mqc->c = c; \
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
168 mqc->a = a; \
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
169 mqc->ct = ct;
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parents:
diff changeset
170
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
171 /**
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parents:
diff changeset
172 Input a byte
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
173 @param mqc MQC handle
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
174 */
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
175 static INLINE void opj_mqc_bytein(opj_mqc_t *const mqc)
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
176 {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
177 opj_mqc_bytein_macro(mqc, mqc->c, mqc->ct);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
178 }
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parents:
diff changeset
179
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parents:
diff changeset
180 /**
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
181 Renormalize mqc->a and mqc->c while decoding
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
182 @param mqc MQC handle
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
183 */
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
184 #define opj_mqc_renormd(mqc) \
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parents:
diff changeset
185 opj_mqc_renormd_macro(mqc, mqc->a, mqc->c, mqc->ct)
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parents:
diff changeset
186
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parents:
diff changeset
187 /**
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
188 Decode a symbol
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parents:
diff changeset
189 @param d OPJ_UINT32 value where to store the decoded symbol
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parents:
diff changeset
190 @param mqc MQC handle
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parents:
diff changeset
191 @return Returns the decoded symbol (0 or 1) in d
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
192 */
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
193 #define opj_mqc_decode(d, mqc) \
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parents:
diff changeset
194 opj_mqc_decode_macro(d, mqc, mqc->curctx, mqc->a, mqc->c, mqc->ct)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
195
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parents:
diff changeset
196 /**
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
197 Output a byte, doing bit-stuffing if necessary.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
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diff changeset
198 After a 0xff byte, the next byte must be smaller than 0x90.
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199 @param mqc MQC handle
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200 */
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201 void opj_mqc_byteout(opj_mqc_t *mqc);
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202
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203 /**
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204 Renormalize mqc->a and mqc->c while encoding, so that mqc->a stays between 0x8000 and 0x10000
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205 @param mqc MQC handle
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206 @param a_ value of mqc->a
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207 @param c_ value of mqc->c_
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208 @param ct_ value of mqc->ct_
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209 */
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210 #define opj_mqc_renorme_macro(mqc, a_, c_, ct_) \
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211 { \
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212 do { \
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213 a_ <<= 1; \
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214 c_ <<= 1; \
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215 ct_--; \
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216 if (ct_ == 0) { \
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217 mqc->c = c_; \
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218 opj_mqc_byteout(mqc); \
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219 c_ = mqc->c; \
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220 ct_ = mqc->ct; \
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221 } \
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222 } while( (a_ & 0x8000) == 0); \
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223 }
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224
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225 #define opj_mqc_codemps_macro(mqc, curctx, a, c, ct) \
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226 { \
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227 a -= (*curctx)->qeval; \
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228 if ((a & 0x8000) == 0) { \
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229 if (a < (*curctx)->qeval) { \
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230 a = (*curctx)->qeval; \
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231 } else { \
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232 c += (*curctx)->qeval; \
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233 } \
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234 *curctx = (*curctx)->nmps; \
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235 opj_mqc_renorme_macro(mqc, a, c, ct); \
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236 } else { \
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237 c += (*curctx)->qeval; \
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238 } \
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239 }
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240
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241 #define opj_mqc_codelps_macro(mqc, curctx, a, c, ct) \
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242 { \
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243 a -= (*curctx)->qeval; \
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244 if (a < (*curctx)->qeval) { \
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245 c += (*curctx)->qeval; \
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246 } else { \
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247 a = (*curctx)->qeval; \
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248 } \
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249 *curctx = (*curctx)->nlps; \
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250 opj_mqc_renorme_macro(mqc, a, c, ct); \
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251 }
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252
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253 #define opj_mqc_encode_macro(mqc, curctx, a, c, ct, d) \
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254 { \
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255 if ((*curctx)->mps == (d)) { \
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256 opj_mqc_codemps_macro(mqc, curctx, a, c, ct); \
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257 } else { \
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258 opj_mqc_codelps_macro(mqc, curctx, a, c, ct); \
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259 } \
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260 }
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261
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262
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263 #define opj_mqc_bypass_enc_macro(mqc, c, ct, d) \
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264 {\
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265 if (ct == BYPASS_CT_INIT) {\
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266 ct = 8;\
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267 }\
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268 ct--;\
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269 c = c + ((d) << ct);\
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270 if (ct == 0) {\
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271 *mqc->bp = (OPJ_BYTE)c;\
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272 ct = 8;\
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273 /* If the previous byte was 0xff, make sure that the next msb is 0 */ \
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274 if (*mqc->bp == 0xff) {\
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275 ct = 7;\
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276 }\
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277 mqc->bp++;\
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278 c = 0;\
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279 }\
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280 }
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281
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diff changeset
282 #endif /* OPJ_MQC_INL_H */