2018-02-08 01:32:56 +01:00
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/*
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* Copyright © 2018 Google, Inc.
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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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* Google Author(s): Garret Rieger
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*/
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#include "hb-test.h"
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2018-02-12 22:35:17 +01:00
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#include "hb-subset-test.h"
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2018-02-08 01:32:56 +01:00
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/* Unit tests for hb-subset-glyf.h */
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2018-02-27 22:49:00 +01:00
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static void check_maxp_field (uint8_t *raw_maxp, unsigned int offset, uint16_t expected_value)
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{
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uint16_t actual_value = (raw_maxp[offset] << 8) + raw_maxp[offset + 1];
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g_assert_cmpuint(expected_value, ==, actual_value);
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}
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static void check_maxp_num_glyphs (hb_face_t *face, uint16_t expected_num_glyphs, bool hints)
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2018-02-24 02:43:00 +01:00
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{
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hb_blob_t *maxp_blob = hb_face_reference_table (face, HB_TAG ('m','a','x', 'p'));
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unsigned int maxp_len;
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uint8_t *raw_maxp = (uint8_t *) hb_blob_get_data(maxp_blob, &maxp_len);
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2018-02-27 22:49:00 +01:00
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check_maxp_field (raw_maxp, 4, expected_num_glyphs); // numGlyphs
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if (!hints)
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{
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check_maxp_field (raw_maxp, 14, 1); // maxZones
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check_maxp_field (raw_maxp, 16, 0); // maxTwilightPoints
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check_maxp_field (raw_maxp, 18, 0); // maxStorage
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check_maxp_field (raw_maxp, 20, 0); // maxFunctionDefs
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check_maxp_field (raw_maxp, 22, 0); // maxInstructionDefs
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check_maxp_field (raw_maxp, 24, 0); // maxStackElements
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check_maxp_field (raw_maxp, 26, 0); // maxSizeOfInstructions
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}
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2018-02-24 02:43:00 +01:00
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hb_blob_destroy (maxp_blob);
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}
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2018-02-08 01:32:56 +01:00
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static void
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test_subset_glyf (void)
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{
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2018-10-21 09:37:17 +02:00
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hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
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hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.ttf");
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2018-02-08 01:32:56 +01:00
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2018-02-12 22:35:17 +01:00
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hb_set_t *codepoints = hb_set_create();
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2018-03-12 06:48:55 +01:00
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hb_face_t *face_abc_subset;
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2018-02-08 01:32:56 +01:00
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hb_set_add (codepoints, 97);
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hb_set_add (codepoints, 99);
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2018-03-12 06:48:55 +01:00
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face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
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2018-02-12 22:35:17 +01:00
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hb_set_destroy (codepoints);
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hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('g','l','y','f'));
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hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('l','o','c', 'a'));
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2018-02-27 22:49:00 +01:00
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check_maxp_num_glyphs(face_abc_subset, 3, true);
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2018-02-08 01:32:56 +01:00
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2018-02-12 22:35:17 +01:00
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hb_face_destroy (face_abc_subset);
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hb_face_destroy (face_abc);
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hb_face_destroy (face_ac);
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}
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2018-02-08 01:32:56 +01:00
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2019-03-01 02:25:05 +01:00
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static void
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test_subset_glyf_with_input_glyphs (void)
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{
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hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
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hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.ttf");
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hb_set_t *glyphs = hb_set_create();
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hb_face_t *face_abc_subset;
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hb_set_add (glyphs, 1);
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hb_set_add (glyphs, 3);
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face_abc_subset =
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hb_subset_test_create_subset (face_abc, hb_subset_test_create_input_from_glyphs (glyphs));
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hb_set_destroy (glyphs);
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hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('g','l','y','f'));
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hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('l','o','c', 'a'));
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check_maxp_num_glyphs(face_abc_subset, 3, true);
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hb_face_destroy (face_abc_subset);
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hb_face_destroy (face_abc);
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hb_face_destroy (face_ac);
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}
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2018-02-17 01:02:51 +01:00
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static void
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test_subset_glyf_with_components (void)
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{
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2018-10-21 09:37:17 +02:00
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hb_face_t *face_components = hb_test_open_font_file ("fonts/Roboto-Regular.components.ttf");
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hb_face_t *face_subset = hb_test_open_font_file ("fonts/Roboto-Regular.components.subset.ttf");
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2018-02-17 01:02:51 +01:00
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hb_set_t *codepoints = hb_set_create();
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2018-03-12 06:48:55 +01:00
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hb_face_t *face_generated_subset;
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2018-02-17 01:02:51 +01:00
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hb_set_add (codepoints, 0x1fc);
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2018-03-12 06:48:55 +01:00
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face_generated_subset = hb_subset_test_create_subset (face_components, hb_subset_test_create_input (codepoints));
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2018-02-17 01:02:51 +01:00
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hb_set_destroy (codepoints);
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hb_subset_test_check (face_subset, face_generated_subset, HB_TAG ('g','l','y','f'));
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hb_subset_test_check (face_subset, face_generated_subset, HB_TAG ('l','o','c', 'a'));
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2018-02-27 22:49:00 +01:00
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check_maxp_num_glyphs(face_generated_subset, 4, true);
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2018-02-17 01:02:51 +01:00
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hb_face_destroy (face_generated_subset);
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hb_face_destroy (face_subset);
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hb_face_destroy (face_components);
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}
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2018-06-08 00:32:52 +02:00
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static void
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test_subset_glyf_with_gsub (void)
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{
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2018-10-21 09:37:17 +02:00
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hb_face_t *face_fil = hb_test_open_font_file ("fonts/Roboto-Regular.gsub.fil.ttf");
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hb_face_t *face_fi = hb_test_open_font_file ("fonts/Roboto-Regular.gsub.fi.ttf");
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2018-07-25 12:26:10 +02:00
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hb_subset_input_t *input;
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hb_face_t *face_subset;
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2018-06-08 00:32:52 +02:00
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hb_set_t *codepoints = hb_set_create();
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hb_set_add (codepoints, 102); // f
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hb_set_add (codepoints, 105); // i
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2018-07-25 12:26:10 +02:00
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input = hb_subset_test_create_input (codepoints);
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2018-06-08 00:32:52 +02:00
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hb_set_destroy (codepoints);
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2018-08-30 03:24:03 +02:00
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hb_subset_input_set_drop_layout (input, false);
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2018-06-08 00:32:52 +02:00
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2018-07-25 12:26:10 +02:00
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face_subset = hb_subset_test_create_subset (face_fil, input);
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2018-06-08 00:32:52 +02:00
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hb_subset_test_check (face_fi, face_subset, HB_TAG ('g','l','y','f'));
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hb_subset_test_check (face_fi, face_subset, HB_TAG ('l','o','c', 'a'));
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check_maxp_num_glyphs(face_subset, 5, true);
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hb_face_destroy (face_subset);
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hb_face_destroy (face_fi);
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hb_face_destroy (face_fil);
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}
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static void
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test_subset_glyf_without_gsub (void)
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{
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2018-10-21 09:37:17 +02:00
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hb_face_t *face_fil = hb_test_open_font_file ("fonts/Roboto-Regular.gsub.fil.ttf");
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hb_face_t *face_fi = hb_test_open_font_file ("fonts/Roboto-Regular.nogsub.fi.ttf");
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2018-07-25 12:26:10 +02:00
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hb_subset_input_t *input;
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hb_face_t *face_subset;
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2018-06-08 00:32:52 +02:00
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hb_set_t *codepoints = hb_set_create();
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hb_set_add (codepoints, 102); // f
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hb_set_add (codepoints, 105); // i
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2018-07-25 12:26:10 +02:00
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input = hb_subset_test_create_input (codepoints);
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2018-06-08 00:32:52 +02:00
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hb_set_destroy (codepoints);
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2018-08-30 03:24:03 +02:00
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hb_subset_input_set_drop_layout (input, true);
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2018-06-08 00:32:52 +02:00
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2018-07-25 12:26:10 +02:00
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face_subset = hb_subset_test_create_subset (face_fil, input);
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2018-06-08 00:32:52 +02:00
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hb_subset_test_check (face_fi, face_subset, HB_TAG ('g','l','y','f'));
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hb_subset_test_check (face_fi, face_subset, HB_TAG ('l','o','c', 'a'));
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check_maxp_num_glyphs(face_subset, 3, true);
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hb_face_destroy (face_subset);
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hb_face_destroy (face_fi);
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hb_face_destroy (face_fil);
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}
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2018-02-12 22:35:17 +01:00
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static void
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test_subset_glyf_noop (void)
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{
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2018-10-21 09:37:17 +02:00
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hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
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2018-02-08 01:32:56 +01:00
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2018-02-12 22:35:17 +01:00
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hb_set_t *codepoints = hb_set_create();
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2018-03-12 06:48:55 +01:00
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hb_face_t *face_abc_subset;
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2018-02-12 22:35:17 +01:00
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hb_set_add (codepoints, 97);
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hb_set_add (codepoints, 98);
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hb_set_add (codepoints, 99);
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2018-03-12 06:48:55 +01:00
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face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
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2018-02-12 22:35:17 +01:00
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hb_set_destroy (codepoints);
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2018-02-08 01:32:56 +01:00
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2018-02-12 22:35:17 +01:00
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hb_subset_test_check (face_abc, face_abc_subset, HB_TAG ('g','l','y','f'));
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hb_subset_test_check (face_abc, face_abc_subset, HB_TAG ('l','o','c', 'a'));
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2018-02-27 22:49:00 +01:00
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check_maxp_num_glyphs(face_abc_subset, 4, true);
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2018-02-10 22:40:03 +01:00
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2018-02-10 22:40:54 +01:00
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hb_face_destroy (face_abc_subset);
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2018-02-08 01:32:56 +01:00
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hb_face_destroy (face_abc);
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}
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2018-02-22 07:23:05 +01:00
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static void
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2018-02-28 02:23:30 +01:00
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test_subset_glyf_strip_hints_simple (void)
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2018-02-22 07:23:05 +01:00
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{
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2018-10-21 09:37:17 +02:00
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hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
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hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.nohints.ttf");
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2018-02-22 07:23:05 +01:00
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hb_set_t *codepoints = hb_set_create();
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2018-03-12 06:48:55 +01:00
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hb_subset_input_t *input;
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hb_face_t *face_abc_subset;
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2018-02-22 07:23:05 +01:00
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hb_set_add (codepoints, 'a');
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hb_set_add (codepoints, 'c');
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2018-03-12 06:48:55 +01:00
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input = hb_subset_test_create_input (codepoints);
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2018-08-30 03:24:03 +02:00
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hb_subset_input_set_drop_hints (input, true);
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2018-03-12 06:48:55 +01:00
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face_abc_subset = hb_subset_test_create_subset (face_abc, input);
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2018-02-22 07:23:05 +01:00
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hb_set_destroy (codepoints);
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hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('l','o','c', 'a'));
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2018-02-23 22:05:58 +01:00
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hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('g','l','y','f'));
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2018-02-27 22:49:00 +01:00
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check_maxp_num_glyphs(face_abc_subset, 3, false);
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2018-02-22 07:23:05 +01:00
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hb_face_destroy (face_abc_subset);
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hb_face_destroy (face_abc);
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hb_face_destroy (face_ac);
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}
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2018-02-28 02:23:30 +01:00
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static void
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test_subset_glyf_strip_hints_composite (void)
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{
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2018-10-21 09:37:17 +02:00
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hb_face_t *face_components = hb_test_open_font_file ("fonts/Roboto-Regular.components.ttf");
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hb_face_t *face_subset = hb_test_open_font_file ("fonts/Roboto-Regular.components.1fc.nohints.ttf");
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2018-02-28 02:23:30 +01:00
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hb_set_t *codepoints = hb_set_create();
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2018-03-12 06:48:55 +01:00
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hb_subset_input_t *input;
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hb_face_t *face_generated_subset;
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2018-02-28 02:23:30 +01:00
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hb_set_add (codepoints, 0x1fc);
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2018-03-12 06:48:55 +01:00
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input = hb_subset_test_create_input (codepoints);
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2018-08-30 03:24:03 +02:00
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hb_subset_input_set_drop_hints (input, true);
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2018-02-28 02:23:30 +01:00
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2018-03-12 06:48:55 +01:00
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face_generated_subset = hb_subset_test_create_subset (face_components, input);
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2018-02-28 02:23:30 +01:00
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hb_set_destroy (codepoints);
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hb_subset_test_check (face_subset, face_generated_subset, HB_TAG ('g','l','y','f'));
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hb_subset_test_check (face_subset, face_generated_subset, HB_TAG ('l','o','c', 'a'));
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2018-02-28 05:17:04 +01:00
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check_maxp_num_glyphs(face_generated_subset, 4, false);
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2018-02-28 02:23:30 +01:00
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hb_face_destroy (face_generated_subset);
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hb_face_destroy (face_subset);
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hb_face_destroy (face_components);
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}
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2018-02-22 07:23:05 +01:00
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2018-04-20 00:30:35 +02:00
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static void
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test_subset_glyf_strip_hints_invalid (void)
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{
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2018-10-21 09:37:17 +02:00
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hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/oom-ccc61c92d589f895174cdef6ff2e3b20e9999a1a");
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2018-04-20 00:30:35 +02:00
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hb_set_t *codepoints = hb_set_create();
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|
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const hb_codepoint_t text[] =
|
2018-06-07 01:46:50 +02:00
|
|
|
{
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|
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'A', 'B', 'C', 'D', 'E', 'X', 'Y', 'Z', '1', '2',
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|
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'3', '@', '_', '%', '&', ')', '*', '$', '!'
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|
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};
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2018-06-08 00:54:19 +02:00
|
|
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unsigned int i;
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2018-07-25 12:26:10 +02:00
|
|
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hb_subset_input_t *input;
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|
|
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hb_face_t *face_subset;
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|
|
|
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2018-06-08 00:54:19 +02:00
|
|
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for (i = 0; i < sizeof (text) / sizeof (hb_codepoint_t); i++)
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2018-04-20 00:30:35 +02:00
|
|
|
{
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|
|
|
hb_set_add (codepoints, text[i]);
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|
|
|
}
|
|
|
|
|
2018-07-25 12:26:10 +02:00
|
|
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input = hb_subset_test_create_input (codepoints);
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2018-08-30 03:24:03 +02:00
|
|
|
hb_subset_input_set_drop_hints (input, true);
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2018-04-20 00:30:35 +02:00
|
|
|
hb_set_destroy (codepoints);
|
|
|
|
|
2018-07-25 12:26:10 +02:00
|
|
|
face_subset = hb_subset_test_create_subset (face, input);
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2018-04-20 00:30:35 +02:00
|
|
|
g_assert (face_subset);
|
|
|
|
g_assert (face_subset == hb_face_get_empty ());
|
|
|
|
|
|
|
|
hb_face_destroy (face_subset);
|
|
|
|
hb_face_destroy (face);
|
|
|
|
}
|
|
|
|
|
2019-01-19 02:36:32 +01:00
|
|
|
static void
|
|
|
|
test_subset_glyf_retain_gids (void)
|
|
|
|
{
|
|
|
|
hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
|
|
|
|
hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.retaingids.ttf");
|
|
|
|
|
|
|
|
hb_set_t *codepoints = hb_set_create();
|
|
|
|
hb_face_t *face_abc_subset;
|
|
|
|
hb_set_add (codepoints, 97);
|
|
|
|
hb_set_add (codepoints, 99);
|
|
|
|
|
|
|
|
hb_subset_input_t *input = hb_subset_test_create_input (codepoints);
|
|
|
|
hb_subset_input_set_retain_gids (input, true);
|
|
|
|
face_abc_subset = hb_subset_test_create_subset (face_abc, input);
|
|
|
|
hb_set_destroy (codepoints);
|
|
|
|
|
|
|
|
hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('g','l','y','f'));
|
|
|
|
hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('l','o','c', 'a'));
|
|
|
|
check_maxp_num_glyphs(face_abc_subset, 4, true);
|
|
|
|
|
|
|
|
hb_face_destroy (face_abc_subset);
|
|
|
|
hb_face_destroy (face_abc);
|
|
|
|
hb_face_destroy (face_ac);
|
|
|
|
}
|
|
|
|
|
2019-05-15 18:42:38 +02:00
|
|
|
static void
|
|
|
|
test_subset_glyf_retain_gids_truncates (void)
|
|
|
|
{
|
|
|
|
hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
|
|
|
|
hb_face_t *face_a = hb_test_open_font_file ("fonts/Roboto-Regular.a.retaingids.ttf");
|
|
|
|
|
|
|
|
hb_set_t *codepoints = hb_set_create();
|
|
|
|
hb_face_t *face_abc_subset;
|
|
|
|
hb_set_add (codepoints, 97);
|
|
|
|
|
|
|
|
hb_subset_input_t *input = hb_subset_test_create_input (codepoints);
|
|
|
|
hb_subset_input_set_retain_gids (input, true);
|
|
|
|
face_abc_subset = hb_subset_test_create_subset (face_abc, input);
|
|
|
|
hb_set_destroy (codepoints);
|
|
|
|
|
|
|
|
hb_subset_test_check (face_a, face_abc_subset, HB_TAG ('g','l','y','f'));
|
|
|
|
hb_subset_test_check (face_a, face_abc_subset, HB_TAG ('l','o','c', 'a'));
|
|
|
|
check_maxp_num_glyphs(face_abc_subset, 2, true);
|
|
|
|
|
|
|
|
hb_face_destroy (face_abc_subset);
|
|
|
|
hb_face_destroy (face_abc);
|
|
|
|
hb_face_destroy (face_a);
|
|
|
|
}
|
|
|
|
|
2018-02-12 22:36:28 +01:00
|
|
|
// TODO(grieger): test for long loca generation.
|
|
|
|
|
2018-02-08 01:32:56 +01:00
|
|
|
int
|
|
|
|
main (int argc, char **argv)
|
|
|
|
{
|
|
|
|
hb_test_init (&argc, &argv);
|
|
|
|
|
2018-02-12 22:35:17 +01:00
|
|
|
hb_test_add (test_subset_glyf_noop);
|
2018-02-23 22:05:58 +01:00
|
|
|
hb_test_add (test_subset_glyf);
|
2019-03-01 02:25:05 +01:00
|
|
|
hb_test_add (test_subset_glyf_with_input_glyphs);
|
2018-02-28 02:23:30 +01:00
|
|
|
hb_test_add (test_subset_glyf_strip_hints_simple);
|
|
|
|
hb_test_add (test_subset_glyf_strip_hints_composite);
|
2018-04-20 00:30:35 +02:00
|
|
|
hb_test_add (test_subset_glyf_strip_hints_invalid);
|
2018-02-23 22:05:58 +01:00
|
|
|
hb_test_add (test_subset_glyf_with_components);
|
2018-06-08 00:32:52 +02:00
|
|
|
hb_test_add (test_subset_glyf_with_gsub);
|
|
|
|
hb_test_add (test_subset_glyf_without_gsub);
|
2019-01-19 02:36:32 +01:00
|
|
|
hb_test_add (test_subset_glyf_retain_gids);
|
2019-05-15 18:42:38 +02:00
|
|
|
hb_test_add (test_subset_glyf_retain_gids_truncates);
|
2018-02-08 01:32:56 +01:00
|
|
|
|
|
|
|
return hb_test_run();
|
|
|
|
}
|