1 /*
2 * Copyright © 2018 Ebrahim Byagowi
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 */
25
26 #include <pthread.h>
27
28 #include <hb.h>
29 #include <hb-ft.h>
30 #include <hb-ot.h>
31
32 #include "hb-test.h"
33
34 static const char *font_path = "fonts/Inconsolata-Regular.abc.ttf";
35 static const char *text = "abc";
36
37 static int num_threads = 30;
38 static int num_iters = 200;
39
40 static hb_font_t *font;
41 static hb_buffer_t *ref_buffer;
42
43 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
44
45 static void
fill_the_buffer(hb_buffer_t * buffer)46 fill_the_buffer (hb_buffer_t *buffer)
47 {
48 hb_buffer_add_utf8 (buffer, text, -1, 0, -1);
49 hb_buffer_guess_segment_properties (buffer);
50 hb_shape (font, buffer, NULL, 0);
51 }
52
53 static void
validity_check(hb_buffer_t * buffer)54 validity_check (hb_buffer_t *buffer) {
55 if (hb_buffer_diff (ref_buffer, buffer, (hb_codepoint_t) -1, 0))
56 {
57 fprintf (stderr, "One of the buffers was different from the reference.\n");
58 char out[255];
59
60 hb_buffer_serialize_glyphs (buffer, 0, hb_buffer_get_length (ref_buffer),
61 out, sizeof (out), NULL,
62 font, HB_BUFFER_SERIALIZE_FORMAT_TEXT,
63 HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES);
64 fprintf (stderr, "Actual: %s\n", out);
65
66 hb_buffer_serialize_glyphs (ref_buffer, 0, hb_buffer_get_length (ref_buffer),
67 out, sizeof (out), NULL,
68 font, HB_BUFFER_SERIALIZE_FORMAT_TEXT,
69 HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES);
70 fprintf (stderr, "Expected: %s\n", out);
71
72 exit (1);
73 }
74 }
75
76 static void *
thread_func(void * data)77 thread_func (void *data)
78 {
79 hb_buffer_t *buffer = (hb_buffer_t *) data;
80
81 pthread_mutex_lock (&mutex);
82 pthread_mutex_unlock (&mutex);
83
84 int i;
85 for (i = 0; i < num_iters; i++)
86 {
87 hb_buffer_clear_contents (buffer);
88 fill_the_buffer (buffer);
89 validity_check (buffer);
90 }
91
92 return 0;
93 }
94
95 static void
test_body(void)96 test_body (void)
97 {
98 int i;
99 pthread_t *threads = calloc (num_threads, sizeof (pthread_t));
100 hb_buffer_t **buffers = calloc (num_threads, sizeof (hb_buffer_t *));
101
102 pthread_mutex_lock (&mutex);
103
104 for (i = 0; i < num_threads; i++)
105 {
106 hb_buffer_t *buffer = hb_buffer_create ();
107 buffers[i] = buffer;
108 pthread_create (&threads[i], NULL, thread_func, buffer);
109 }
110
111 /* Let them loose! */
112 pthread_mutex_unlock (&mutex);
113
114 for (i = 0; i < num_threads; i++)
115 {
116 pthread_join (threads[i], NULL);
117 hb_buffer_destroy (buffers[i]);
118 }
119
120 free (buffers);
121 free (threads);
122 }
123
124 int
main(int argc,char ** argv)125 main (int argc, char **argv)
126 {
127 hb_test_init (&argc, &argv);
128
129 char *path = argc > 1 && *argv[1] ? argv[1] : (char *) font_path;
130 if (argc > 2)
131 num_threads = atoi (argv[2]);
132 if (argc > 3)
133 num_iters = atoi (argv[3]);
134 if (argc > 4)
135 text = argv[4];
136
137 /* Dummy call to alleviate _guess_segment_properties thread safety-ness
138 * https://github.com/harfbuzz/harfbuzz/issues/1191 */
139 hb_language_get_default ();
140
141 hb_face_t *face = hb_test_open_font_file (path);
142 font = hb_font_create (face);
143
144 /* Fill the reference */
145 ref_buffer = hb_buffer_create ();
146 fill_the_buffer (ref_buffer);
147
148 /* Unnecessary, since version 2 it is ot-font by default */
149 hb_ot_font_set_funcs (font);
150 test_body ();
151
152 /* Test hb-ft in multithread */
153 hb_ft_font_set_funcs (font);
154 test_body ();
155
156 hb_buffer_destroy (ref_buffer);
157
158 hb_font_destroy (font);
159 hb_face_destroy (face);
160
161 return 0;
162 }
163