2 * Copyright © 2018 Google, Inc.
4 * This is part of HarfBuzz, a text shaping library.
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9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
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
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
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24 * Google Author(s): Garret Rieger
28 #include "hb-subset-test.h"
30 /* Unit tests for hmtx subsetting */
32 static void check_num_vmetrics(hb_face_t *face, uint16_t expected_num_vmetrics)
34 hb_blob_t *vhea_blob = hb_face_reference_table (face, HB_TAG ('v','h','e','a'));
35 hb_blob_t *vmtx_blob = hb_face_reference_table (face, HB_TAG ('v','m','t','x'));
37 unsigned int vhea_len;
38 uint8_t *raw_vhea = (uint8_t *) hb_blob_get_data(vhea_blob, &vhea_len);
39 uint16_t num_vmetrics = (raw_vhea[vhea_len - 2] << 8) + raw_vhea[vhea_len - 1];
40 g_assert_cmpuint(expected_num_vmetrics, ==, num_vmetrics);
42 hb_blob_destroy (vhea_blob);
43 hb_blob_destroy (vmtx_blob);
47 test_subset_vmtx_simple_subset (void)
49 hb_face_t *face_full = hb_subset_test_open_font ("fonts/Mplus1p-Regular.660E,6975,73E0,5EA6,8F38,6E05.ttf");
50 hb_face_t *face_subset = hb_subset_test_open_font ("fonts/Mplus1p-Regular.660E.ttf");
52 hb_set_t *codepoints = hb_set_create ();
53 hb_set_add (codepoints, 0x660E);
55 hb_face_t *face_full_subset = hb_subset_test_create_subset (face_full, hb_subset_test_create_input (codepoints));
56 hb_set_destroy (codepoints);
58 check_num_vmetrics(face_full_subset, 1); /* nothing has same width */
59 hb_subset_test_check (face_subset, face_full_subset, HB_TAG ('v','m','t','x'));
61 hb_face_destroy (face_full_subset);
62 hb_face_destroy (face_full);
63 hb_face_destroy (face_subset);
67 test_subset_vmtx_noop (void)
69 hb_face_t *face_full = hb_subset_test_open_font ("fonts/Mplus1p-Regular.660E,6975,73E0,5EA6,8F38,6E05.ttf");
71 hb_set_t *codepoints = hb_set_create();
72 hb_set_add (codepoints, 0x660E);
73 hb_set_add (codepoints, 0x6975);
74 hb_set_add (codepoints, 0x73E0);
75 hb_set_add (codepoints, 0x5EA6);
76 hb_set_add (codepoints, 0x8F38);
77 hb_set_add (codepoints, 0x6E05);
78 hb_face_t *face_full_subset = hb_subset_test_create_subset (face_full, hb_subset_test_create_input (codepoints));
79 hb_set_destroy (codepoints);
81 check_num_vmetrics(face_full_subset, 1); /* all have the same width */
82 hb_subset_test_check (face_full, face_full_subset, HB_TAG ('v','m','t','x'));
84 hb_face_destroy (face_full_subset);
85 hb_face_destroy (face_full);
89 main (int argc, char **argv)
91 hb_test_init (&argc, &argv);
93 hb_test_add (test_subset_vmtx_simple_subset);
94 hb_test_add (test_subset_vmtx_noop);