annotate mupdf-source/thirdparty/jbig2dec/jbig2_text.h @ 2:b50eed0cc0ef upstream

ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1 /* Copyright (C) 2001-2023 Artifex Software, Inc.
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2 All Rights Reserved.
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4 This software is provided AS-IS with no warranty, either express or
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5 implied.
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7 This software is distributed under license and may not be copied,
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8 modified or distributed except as expressly authorized under the terms
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9 of the license contained in the file LICENSE in this distribution.
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11 Refer to licensing information at http://www.artifex.com or contact
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12 Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
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13 CA 94129, USA, for further information.
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14 */
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16 /*
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17 jbig2dec
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18 */
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20 #ifndef _JBIG2_TEXT_H
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21 #define _JBIG2_TEXT_H
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23 /**
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24 * Headers for Text region handling
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25 **/
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27 typedef enum {
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28 JBIG2_CORNER_BOTTOMLEFT = 0,
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29 JBIG2_CORNER_TOPLEFT = 1,
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30 JBIG2_CORNER_BOTTOMRIGHT = 2,
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31 JBIG2_CORNER_TOPRIGHT = 3
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32 } Jbig2RefCorner;
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33
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34 typedef struct {
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35 bool SBHUFF;
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36 bool SBREFINE;
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37 bool SBDEFPIXEL;
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38 Jbig2ComposeOp SBCOMBOP;
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39 bool TRANSPOSED;
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40 Jbig2RefCorner REFCORNER;
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41 int SBDSOFFSET;
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42 /* int SBW; */
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43 /* int SBH; */
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44 uint32_t SBNUMINSTANCES;
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45 int LOGSBSTRIPS;
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46 int SBSTRIPS;
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47 /* int SBNUMSYMS; */
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48 /* SBSYMCODES */
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49 /* SBSYMCODELEN */
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50 /* SBSYMS */
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51 Jbig2HuffmanTable *SBHUFFFS;
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52 Jbig2HuffmanTable *SBHUFFDS;
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53 Jbig2HuffmanTable *SBHUFFDT;
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54 Jbig2HuffmanTable *SBHUFFRDW;
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55 Jbig2HuffmanTable *SBHUFFRDH;
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56 Jbig2HuffmanTable *SBHUFFRDX;
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57 Jbig2HuffmanTable *SBHUFFRDY;
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58 Jbig2HuffmanTable *SBHUFFRSIZE;
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59 Jbig2ArithIntCtx *IADT;
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60 Jbig2ArithIntCtx *IAFS;
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61 Jbig2ArithIntCtx *IADS;
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62 Jbig2ArithIntCtx *IAIT;
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63 Jbig2ArithIaidCtx *IAID;
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64 Jbig2ArithIntCtx *IARI;
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65 Jbig2ArithIntCtx *IARDW;
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66 Jbig2ArithIntCtx *IARDH;
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67 Jbig2ArithIntCtx *IARDX;
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68 Jbig2ArithIntCtx *IARDY;
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69 bool SBRTEMPLATE;
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70 int8_t sbrat[4];
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71 } Jbig2TextRegionParams;
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72
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73 int
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74 jbig2_decode_text_region(Jbig2Ctx *ctx, Jbig2Segment *segment,
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75 const Jbig2TextRegionParams *params,
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76 const Jbig2SymbolDict *const *dicts, const uint32_t n_dicts,
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77 Jbig2Image *image, const byte *data, const size_t size, Jbig2ArithCx *GR_stats, Jbig2ArithState *as, Jbig2WordStream *ws);
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78
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79 int jbig2_text_region(Jbig2Ctx *ctx, Jbig2Segment *segment, const uint8_t *segment_data);
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80
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81 #endif /* _JBIG2_TEXT_H */