Mercurial > hgrepos > Python2 > PyMuPDF

comparison mupdf-source/thirdparty/harfbuzz/util/shape-consumer.hh @ 2:b50eed0cc0ef upstream

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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
parents
children
comparison
equal deleted inserted replaced
1:1d09e1dec1d9 2:b50eed0cc0ef
1 /*
2 * Copyright © 2011,2012 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 * Google Author(s): Behdad Esfahbod
25 */
26
27 #ifndef HB_SHAPE_CONSUMER_HH
28 #define HB_SHAPE_CONSUMER_HH
29
30 #include "font-options.hh"
31 #include "shape-options.hh"
32 #include "text-options.hh"
33
34
35 template <typename output_t>
36 struct shape_consumer_t : shape_options_t
37 {
38 void add_options (option_parser_t *parser)
39 {
40 shape_options_t::add_options (parser);
41 output.add_options (parser);
42 }
43
44 template <typename app_t>
45 void init (const app_t *app)
46 {
47 failed = false;
48 buffer = hb_buffer_create ();
49
50 output.init (buffer, app);
51 }
52 template <typename app_t>
53 bool consume_line (app_t &app)
54 {
55 unsigned int text_len;
56 const char *text;
57 if (!(text = app.get_line (&text_len)))
58 return false;
59
60 output.new_line ();
61
62 for (unsigned int n = num_iterations; n; n--)
63 {
64 populate_buffer (buffer, text, text_len, app.text_before, app.text_after);
65 if (n == 1)
66 output.consume_text (buffer, text, text_len, utf8_clusters);
67
68 const char *error = nullptr;
69 if (!shape (app.font, buffer, &error))
70 {
71 failed = true;
72 output.error (error);
73 if (hb_buffer_get_content_type (buffer) == HB_BUFFER_CONTENT_TYPE_GLYPHS)
74 break;
75 else
76 return true;
77 }
78 }
79
80 output.consume_glyphs (buffer, text, text_len, utf8_clusters);
81 return true;
82 }
83 template <typename app_t>
84 void finish (const app_t *app)
85 {
86 output.finish (buffer, app);
87 hb_buffer_destroy (buffer);
88 buffer = nullptr;
89 }
90
91 public:
92 bool failed = false;
93
94 protected:
95 output_t output;
96
97 hb_buffer_t *buffer = nullptr;
98 };
99
100
101 #endif