Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/src/hb-subset-repacker.h @ 32:72c1b70d4f5c

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author Franz Glasner <fzglas.hg@dom66.de>
date Sun, 21 Sep 2025 15:10:12 +0200
parents b50eed0cc0ef
children
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1 /*
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2 * Copyright © 2022 Google, Inc.
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3 *
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4 * This is part of HarfBuzz, a text shaping library.
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5 *
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6 * Permission is hereby granted, without written agreement and without
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7 * license or royalty fees, to use, copy, modify, and distribute this
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8 * software and its documentation for any purpose, provided that the
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9 * above copyright notice and the following two paragraphs appear in
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10 * all copies of this software.
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11 *
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12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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16 * DAMAGE.
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17 *
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18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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23 *
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24 */
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26 #ifndef HB_SUBSET_REPACKER_H
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27 #define HB_SUBSET_REPACKER_H
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29 #include "hb.h"
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31 HB_BEGIN_DECLS
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32
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33 #ifdef HB_EXPERIMENTAL_API
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34 /*
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35 * struct hb_link_t
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36 * width: offsetSize in bytes
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37 * position: position of the offset field in bytes
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38 * from beginning of subtable
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39 * objidx: index of subtable
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40 */
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41 struct hb_link_t
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42 {
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43 unsigned width;
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44 unsigned position;
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45 unsigned objidx;
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46 };
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47
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48 typedef struct hb_link_t hb_link_t;
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49
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50 /*
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51 * struct hb_object_t
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52 * head: start of object data
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53 * tail: end of object data
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54 * num_real_links: num of offset field in the object
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55 * real_links: pointer to array of offset info
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56 * num_virtual_links: num of objects that must be packed
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57 * after current object in the final serialized order
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58 * virtual_links: array of virtual link info
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59 */
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60 struct hb_object_t
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61 {
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62 char *head;
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63 char *tail;
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64 unsigned num_real_links;
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65 hb_link_t *real_links;
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66 unsigned num_virtual_links;
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67 hb_link_t *virtual_links;
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68 };
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70 typedef struct hb_object_t hb_object_t;
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72 HB_EXTERN hb_blob_t*
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73 hb_subset_repack_or_fail (hb_tag_t table_tag,
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74 hb_object_t* hb_objects,
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75 unsigned num_hb_objs);
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77 #endif
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79 HB_END_DECLS
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80
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81 #endif /* HB_SUBSET_REPACKER_H */