Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/src/hb-ot-layout-gsub-table.hh @ 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 © 2007,2008,2009,2010 Red Hat, Inc.
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3 * Copyright © 2010,2012,2013 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_OT_LAYOUT_GSUB_TABLE_HH
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30 #define HB_OT_LAYOUT_GSUB_TABLE_HH
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32 #include "OT/Layout/GSUB/GSUB.hh"
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33
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34 namespace OT {
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35 namespace Layout {
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36 namespace GSUB_impl {
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37
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38 // TODO(garretrieger): Move into the new layout directory.
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39 /* Out-of-class implementation for methods recursing */
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41 #ifndef HB_NO_OT_LAYOUT
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42 /*static*/ inline bool ExtensionSubst::is_reverse () const
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43 {
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44 return SubstLookup::lookup_type_is_reverse (get_type ());
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45 }
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46 template <typename context_t>
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47 /*static*/ typename context_t::return_t SubstLookup::dispatch_recurse_func (context_t *c, unsigned int lookup_index)
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48 {
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49 const SubstLookup &l = c->face->table.GSUB.get_relaxed ()->table->get_lookup (lookup_index);
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50 return l.dispatch (c);
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51 }
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52
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53 /*static*/ typename hb_closure_context_t::return_t SubstLookup::closure_glyphs_recurse_func (hb_closure_context_t *c, unsigned lookup_index, hb_set_t *covered_seq_indices, unsigned seq_index, unsigned end_index)
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54 {
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55 const SubstLookup &l = c->face->table.GSUB.get_relaxed ()->table->get_lookup (lookup_index);
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56 if (l.may_have_non_1to1 ())
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57 hb_set_add_range (covered_seq_indices, seq_index, end_index);
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58 return l.dispatch (c);
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59 }
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60
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61 template <>
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62 inline hb_closure_lookups_context_t::return_t
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63 SubstLookup::dispatch_recurse_func<hb_closure_lookups_context_t> (hb_closure_lookups_context_t *c, unsigned this_index)
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64 {
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65 const SubstLookup &l = c->face->table.GSUB.get_relaxed ()->table->get_lookup (this_index);
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66 return l.closure_lookups (c, this_index);
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67 }
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68
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69 template <>
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70 inline bool SubstLookup::dispatch_recurse_func<hb_ot_apply_context_t> (hb_ot_apply_context_t *c, unsigned int lookup_index)
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71 {
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72 const SubstLookup &l = c->face->table.GSUB.get_relaxed ()->table->get_lookup (lookup_index);
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73 unsigned int saved_lookup_props = c->lookup_props;
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74 unsigned int saved_lookup_index = c->lookup_index;
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75 c->set_lookup_index (lookup_index);
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76 c->set_lookup_props (l.get_props ());
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77 bool ret = l.dispatch (c);
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78 c->set_lookup_index (saved_lookup_index);
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79 c->set_lookup_props (saved_lookup_props);
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80 return ret;
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81 }
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82 #endif
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83
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84 } /* namespace GSUB_impl */
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85 } /* namespace Layout */
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86 } /* namespace OT */
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87
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88
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89 #endif /* HB_OT_LAYOUT_GSUB_TABLE_HH */