kc3-lang/harfbuzz/test/api/test-subset-glyf.c

• Show log

  Commit

• Hash : df9e2265
  Author :
  Date : 2018-02-16T17:02:51
  

  [subset] add a glyf subsetting test for a font with composite glyphs.
  

Download

• test/api/test-subset-glyf.c

• /*
   * Copyright © 2018  Google, Inc.
   *
   *  This is part of HarfBuzz, a text shaping library.
   *
   * Permission is hereby granted, without written agreement and without
   * license or royalty fees, to use, copy, modify, and distribute this
   * software and its documentation for any purpose, provided that the
   * above copyright notice and the following two paragraphs appear in
   * all copies of this software.
   *
   * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
   * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
   * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
   * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
   * DAMAGE.
   *
   * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
   * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
   * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
   * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
   * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
   *
   * Google Author(s): Garret Rieger
   */
  
  #include <stdbool.h>
  
  #include "hb-test.h"
  #include "hb-subset-test.h"
  
  /* Unit tests for hb-subset-glyf.h */
  
  static void
  test_subset_glyf (void)
  {
    hb_face_t *face_abc = hb_subset_test_open_font ("fonts/Roboto-Regular.abc.ttf");
    hb_face_t *face_ac = hb_subset_test_open_font ("fonts/Roboto-Regular.ac.ttf");
  
    hb_set_t *codepoints = hb_set_create();
    hb_set_add (codepoints, 97);
    hb_set_add (codepoints, 99);
    hb_face_t *face_abc_subset = hb_subset_test_create_subset (face_abc, codepoints);
    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'));
    hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('m','a','x', 'p'));
  
    hb_face_destroy (face_abc_subset);
    hb_face_destroy (face_abc);
    hb_face_destroy (face_ac);
  }
  
  static void
  test_subset_glyf_with_components (void)
  {
    hb_face_t *face_components = hb_subset_test_open_font ("fonts/Roboto-Regular.components.ttf");
    hb_face_t *face_subset = hb_subset_test_open_font ("fonts/Roboto-Regular.components.subset.ttf");
  
    hb_set_t *codepoints = hb_set_create();
    hb_set_add (codepoints, 0x1fc);
    hb_face_t *face_generated_subset = hb_subset_test_create_subset (face_components, codepoints);
    hb_set_destroy (codepoints);
  
    hb_subset_test_check (face_subset, face_generated_subset, HB_TAG ('g','l','y','f'));
    hb_subset_test_check (face_subset, face_generated_subset, HB_TAG ('l','o','c', 'a'));
    hb_subset_test_check (face_subset, face_generated_subset, HB_TAG ('m','a','x', 'p'));
  
    hb_face_destroy (face_generated_subset);
    hb_face_destroy (face_subset);
    hb_face_destroy (face_components);
  }
  
  static void
  test_subset_glyf_noop (void)
  {
    hb_face_t *face_abc = hb_subset_test_open_font("fonts/Roboto-Regular.abc.ttf");
  
    hb_set_t *codepoints = hb_set_create();
    hb_set_add (codepoints, 97);
    hb_set_add (codepoints, 98);
    hb_set_add (codepoints, 99);
    hb_face_t *face_abc_subset = hb_subset_test_create_subset (face_abc, codepoints);
    hb_set_destroy (codepoints);
  
    hb_subset_test_check (face_abc, face_abc_subset, HB_TAG ('g','l','y','f'));
    hb_subset_test_check (face_abc, face_abc_subset, HB_TAG ('l','o','c', 'a'));
  
    hb_face_destroy (face_abc_subset);
    hb_face_destroy (face_abc);
  }
  
  // TODO(grieger): test for long loca generation.
  
  int
  main (int argc, char **argv)
  {
    hb_test_init (&argc, &argv);
  
    hb_test_add (test_subset_glyf);
    hb_test_add (test_subset_glyf_with_components);
    hb_test_add (test_subset_glyf_noop);
  
    return hb_test_run();
  }
  

Download