HarfBuzz text shaping engine
http://harfbuzz.github.io/
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182 lines
4.6 KiB
182 lines
4.6 KiB
/* |
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* Copyright © 2018 Ebrahim Byagowi |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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* |
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*/ |
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#include <stdlib.h> |
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#include <string.h> |
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#include <stdio.h> |
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#include <pthread.h> |
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#include <hb.h> |
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#include <hb-ft.h> |
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#include <hb-ot.h> |
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#include <glib.h> |
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static char *font_path = "fonts/Inconsolata-Regular.abc.ttf"; |
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static char *text = "abc"; |
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static int num_threads = 30; |
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static int num_iters = 200; |
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static hb_font_t *font; |
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static hb_buffer_t *ref_buffer; |
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static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; |
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static void |
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fill_the_buffer (hb_buffer_t *buffer) |
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{ |
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hb_buffer_add_utf8 (buffer, text, -1, 0, -1); |
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hb_buffer_guess_segment_properties (buffer); |
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hb_shape (font, buffer, NULL, 0); |
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} |
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static void |
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validity_check (hb_buffer_t *buffer) { |
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if (hb_buffer_diff (ref_buffer, buffer, (hb_codepoint_t) -1, 0)) |
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{ |
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fprintf (stderr, "One of the buffers was different from the reference.\n"); |
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char out[255]; |
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hb_buffer_serialize_glyphs (buffer, 0, hb_buffer_get_length (ref_buffer), |
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out, sizeof (out), NULL, |
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font, HB_BUFFER_SERIALIZE_FORMAT_TEXT, |
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HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES); |
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fprintf (stderr, "Actual: %s\n", out); |
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hb_buffer_serialize_glyphs (ref_buffer, 0, hb_buffer_get_length (ref_buffer), |
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out, sizeof (out), NULL, |
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font, HB_BUFFER_SERIALIZE_FORMAT_TEXT, |
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HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES); |
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fprintf (stderr, "Expected: %s\n", out); |
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exit (1); |
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} |
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} |
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static void * |
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thread_func (void *data) |
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{ |
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hb_buffer_t *buffer = (hb_buffer_t *) data; |
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pthread_mutex_lock (&mutex); |
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pthread_mutex_unlock (&mutex); |
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int i; |
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for (i = 0; i < num_iters; i++) |
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{ |
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hb_buffer_clear_contents (buffer); |
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fill_the_buffer (buffer); |
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validity_check (buffer); |
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} |
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return 0; |
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} |
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static void |
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test_body (void) |
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{ |
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int i; |
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pthread_t *threads = calloc (num_threads, sizeof (pthread_t)); |
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hb_buffer_t **buffers = calloc (num_threads, sizeof (hb_buffer_t *)); |
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pthread_mutex_lock (&mutex); |
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for (i = 0; i < num_threads; i++) |
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{ |
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hb_buffer_t *buffer = hb_buffer_create (); |
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buffers[i] = buffer; |
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pthread_create (&threads[i], NULL, thread_func, buffer); |
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} |
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/* Let them loose! */ |
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pthread_mutex_unlock (&mutex); |
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for (i = 0; i < num_threads; i++) |
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{ |
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pthread_join (threads[i], NULL); |
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hb_buffer_destroy (buffers[i]); |
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} |
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free (buffers); |
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free (threads); |
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} |
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int |
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main (int argc, char **argv) |
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{ |
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g_test_init (&argc, &argv, NULL); |
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#if GLIB_CHECK_VERSION(2,37,2) |
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gchar *default_path = g_test_build_filename (G_TEST_DIST, font_path, NULL); |
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#else |
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gchar *default_path = g_strdup (font_path); |
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#endif |
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char *path = argc > 1 ? argv[1] : (char *) default_path; |
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if (argc > 2) |
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num_threads = atoi (argv[2]); |
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if (argc > 3) |
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num_iters = atoi (argv[3]); |
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if (argc > 4) |
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text = argv[4]; |
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// Dummy call to alleviate _guess_segment_properties thread safety-ness |
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// https://github.com/harfbuzz/harfbuzz/issues/1191 |
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hb_language_get_default (); |
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hb_blob_t *blob = hb_blob_create_from_file (path); |
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if (hb_blob_get_length (blob) == 0) |
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{ |
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printf ("The test font is not found."); |
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return 1; |
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} |
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hb_face_t *face = hb_face_create (blob, 0); |
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font = hb_font_create (face); |
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hb_ot_font_set_funcs (font); |
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ref_buffer = hb_buffer_create (); |
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fill_the_buffer (ref_buffer); |
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test_body (); |
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/* hb-font backed by FreeType functions can only be used from |
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* one thread at a time, because that's FT_Face's MT guarantee. |
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* So, disable this, even though it works "most of the time". */ |
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//hb_ft_font_set_funcs (font); |
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//test_body (); |
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hb_buffer_destroy (ref_buffer); |
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hb_font_destroy (font); |
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hb_face_destroy (face); |
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hb_blob_destroy (blob); |
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g_free (default_path); |
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return 0; |
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}
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