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comparison mupdf-source/thirdparty/harfbuzz/src/hb-subset-repacker.h @ 2:b50eed0cc0ef upstream

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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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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /*
2 * Copyright © 2022 Google, Inc.
3 *
4 * This is part of HarfBuzz, a text shaping library.
5 *
6 * Permission is hereby granted, without written agreement and without
7 * license or royalty fees, to use, copy, modify, and distribute this
8 * software and its documentation for any purpose, provided that the
9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
11 *
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
16 * DAMAGE.
17 *
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
23 *
24 */
25
26 #ifndef HB_SUBSET_REPACKER_H
27 #define HB_SUBSET_REPACKER_H
28
29 #include "hb.h"
30
31 HB_BEGIN_DECLS
32
33 #ifdef HB_EXPERIMENTAL_API
34 /*
35 * struct hb_link_t
36 * width: offsetSize in bytes
37 * position: position of the offset field in bytes
38 * from beginning of subtable
39 * objidx: index of subtable
40 */
41 struct hb_link_t
42 {
43 unsigned width;
44 unsigned position;
45 unsigned objidx;
46 };
47
48 typedef struct hb_link_t hb_link_t;
49
50 /*
51 * struct hb_object_t
52 * head: start of object data
53 * tail: end of object data
54 * num_real_links: num of offset field in the object
55 * real_links: pointer to array of offset info
56 * num_virtual_links: num of objects that must be packed
57 * after current object in the final serialized order
58 * virtual_links: array of virtual link info
59 */
60 struct hb_object_t
61 {
62 char *head;
63 char *tail;
64 unsigned num_real_links;
65 hb_link_t *real_links;
66 unsigned num_virtual_links;
67 hb_link_t *virtual_links;
68 };
69
70 typedef struct hb_object_t hb_object_t;
71
72 HB_EXTERN hb_blob_t*
73 hb_subset_repack_or_fail (hb_tag_t table_tag,
74 hb_object_t* hb_objects,
75 unsigned num_hb_objs);
76
77 #endif
78
79 HB_END_DECLS
80
81 #endif /* HB_SUBSET_REPACKER_H */