Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/src/hb-face.hh @ 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 /*
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2 * Copyright © 2009 Red Hat, Inc.
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3 * Copyright © 2011 Google, Inc.
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4 *
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5 * This is part of HarfBuzz, a text shaping library.
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6 *
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7 * Permission is hereby granted, without written agreement and without
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8 * license or royalty fees, to use, copy, modify, and distribute this
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9 * software and its documentation for any purpose, provided that the
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10 * above copyright notice and the following two paragraphs appear in
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11 * all copies of this software.
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12 *
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13 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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14 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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15 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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16 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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17 * DAMAGE.
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18 *
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19 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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20 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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21 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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22 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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23 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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24 *
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25 * Red Hat Author(s): Behdad Esfahbod
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26 * Google Author(s): Behdad Esfahbod
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27 */
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29 #ifndef HB_FACE_HH
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30 #define HB_FACE_HH
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31
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32 #include "hb.hh"
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33
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34 #include "hb-shaper.hh"
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35 #include "hb-shape-plan.hh"
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36 #include "hb-ot-face.hh"
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39 /*
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40 * hb_face_t
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41 */
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42
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43 #define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_INSTANTIATE_SHAPERS(shaper, face);
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44 #include "hb-shaper-list.hh"
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45 #undef HB_SHAPER_IMPLEMENT
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47 struct hb_face_t
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48 {
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49 hb_object_header_t header;
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50
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51 hb_reference_table_func_t reference_table_func;
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52 void *user_data;
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53 hb_destroy_func_t destroy;
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54
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55 unsigned int index; /* Face index in a collection, zero-based. */
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56 mutable hb_atomic_int_t upem; /* Units-per-EM. */
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57 mutable hb_atomic_int_t num_glyphs; /* Number of glyphs. */
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58
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59 hb_shaper_object_dataset_t<hb_face_t> data;/* Various shaper data. */
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60 hb_ot_face_t table; /* All the face's tables. */
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61
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62 /* Cache */
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63 struct plan_node_t
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64 {
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65 hb_shape_plan_t *shape_plan;
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66 plan_node_t *next;
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67 };
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68 #ifndef HB_NO_SHAPER
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69 hb_atomic_ptr_t<plan_node_t> shape_plans;
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70 #endif
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71
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72 hb_blob_t *reference_table (hb_tag_t tag) const
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73 {
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74 hb_blob_t *blob;
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75
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76 if (unlikely (!reference_table_func))
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77 return hb_blob_get_empty ();
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79 blob = reference_table_func (/*XXX*/const_cast<hb_face_t *> (this), tag, user_data);
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80 if (unlikely (!blob))
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81 return hb_blob_get_empty ();
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82
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83 return blob;
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84 }
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85
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86 unsigned int get_upem () const
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87 {
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88 unsigned int ret = upem;
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89 if (unlikely (!ret))
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90 {
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91 return load_upem ();
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92 }
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93 return ret;
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94 }
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96 unsigned int get_num_glyphs () const
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97 {
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98 unsigned int ret = num_glyphs;
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99 if (unlikely (ret == UINT_MAX))
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100 return load_num_glyphs ();
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101 return ret;
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102 }
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103
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104 private:
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105 HB_INTERNAL unsigned int load_upem () const;
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106 HB_INTERNAL unsigned int load_num_glyphs () const;
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107 };
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108 DECLARE_NULL_INSTANCE (hb_face_t);
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109
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110
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111 #endif /* HB_FACE_HH */