1 /*
2 * Copyright 2021 Red Hat, 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 * Author(s): Matthias Clasen
25 */
26
27 #include "hb-test.h"
28
29 #include <hb.h>
30
31 /* test for https://github.com/harfbuzz/harfbuzz/issues/3274 */
32
33 static void
test_hb_scale(void)34 test_hb_scale (void)
35 {
36 hb_face_t *face = hb_test_open_font_file ("fonts/Cantarell.A.otf");
37 hb_font_t *font1 = hb_font_create (face);
38 hb_font_t *font2 = hb_font_create (face);
39
40 double scale = 64 * 1024 * 96./72.;
41 hb_font_set_scale (font1, scale, scale);
42 hb_font_set_scale (font2, - scale, - scale);
43
44 g_assert_cmpint (hb_font_get_glyph_h_advance (font1, 1), ==, - hb_font_get_glyph_h_advance (font2, 1));
45
46 hb_font_destroy (font1);
47 hb_font_destroy (font2);
48 hb_face_destroy (face);
49 }
50
51 int
main(int argc,char ** argv)52 main (int argc, char **argv)
53 {
54 hb_test_init (&argc, &argv);
55 hb_test_add (test_hb_scale);
56 return hb_test_run ();
57 }
58