Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/src/graph/gsubgpos-context.cc @ 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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b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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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 * Google Author(s): Garret Rieger
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25 */
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26
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27 #include "gsubgpos-graph.hh"
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29 namespace graph {
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31 gsubgpos_graph_context_t::gsubgpos_graph_context_t (hb_tag_t table_tag_,
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32 graph_t& graph_)
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33 : table_tag (table_tag_),
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34 graph (graph_),
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35 lookup_list_index (0),
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36 lookups ()
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37 {
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38 if (table_tag_ != HB_OT_TAG_GPOS
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39 && table_tag_ != HB_OT_TAG_GSUB)
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40 return;
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41
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42 GSTAR* gstar = graph::GSTAR::graph_to_gstar (graph_);
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43 if (gstar) {
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44 gstar->find_lookups (graph, lookups);
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45 lookup_list_index = gstar->get_lookup_list_index (graph_);
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46 }
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47 }
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48
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49 unsigned gsubgpos_graph_context_t::create_node (unsigned size)
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50 {
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51 char* buffer = (char*) hb_calloc (1, size);
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52 if (!buffer)
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53 return -1;
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54
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55 add_buffer (buffer);
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56
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57 return graph.new_node (buffer, buffer + size);
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58 }
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59
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60 unsigned gsubgpos_graph_context_t::num_non_ext_subtables () {
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61 unsigned count = 0;
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62 for (auto l : lookups.values ())
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63 {
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64 if (l->is_extension (table_tag)) continue;
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65 count += l->number_of_subtables ();
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66 }
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67 return count;
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68 }
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69
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70 }