Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/src/graph/split-helpers.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 © 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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27 #ifndef GRAPH_SPLIT_HELPERS_HH
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28 #define GRAPH_SPLIT_HELPERS_HH
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30 namespace graph {
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32 template<typename Context>
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33 HB_INTERNAL
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34 hb_vector_t<unsigned> actuate_subtable_split (Context& split_context,
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35 const hb_vector_t<unsigned>& split_points)
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36 {
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37 hb_vector_t<unsigned> new_objects;
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38 if (!split_points)
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39 return new_objects;
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41 for (unsigned i = 0; i < split_points.length; i++)
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42 {
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43 unsigned start = split_points[i];
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44 unsigned end = (i < split_points.length - 1)
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45 ? split_points[i + 1]
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46 : split_context.original_count ();
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47 unsigned id = split_context.clone_range (start, end);
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48
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49 if (id == (unsigned) -1)
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50 {
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51 new_objects.reset ();
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52 new_objects.allocated = -1; // mark error
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53 return new_objects;
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54 }
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55 new_objects.push (id);
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56 }
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58 if (!split_context.shrink (split_points[0]))
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59 {
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60 new_objects.reset ();
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61 new_objects.allocated = -1; // mark error
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62 }
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64 return new_objects;
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65 }
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67 }
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69 #endif // GRAPH_SPLIT_HELPERS_HH