kc3-lang/harfbuzz/test/api/test-ot-extents-cff.c

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• Hash : dc45f225
  Author :
  Date : 2019-10-08T23:27:37
  

  [ot-metrics] Don't use mixed scaled and not scaled for generating extents
  

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• test/api/test-ot-extents-cff.c

• /*
   * Copyright © 2018 Adobe 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.
   *
   * Adobe Author(s): Michiharu Ariza
   */
  
  #include "hb-test.h"
  #include <hb-ot.h>
  
  /* Unit tests for CFF/CFF2 glyph extents */
  
  static void
  test_extents_cff1 (void)
  {
    hb_face_t *face = hb_test_open_font_file ("fonts/SourceSansPro-Regular.abc.otf");
    g_assert (face);
    hb_font_t *font = hb_font_create (face);
    hb_face_destroy (face);
    g_assert (font);
    hb_ot_font_set_funcs (font);
  
    hb_glyph_extents_t  extents;
    hb_bool_t result = hb_font_get_glyph_extents (font, 1, &extents);
    g_assert (result);
  
    g_assert_cmpint (extents.x_bearing, ==, 52);
    g_assert_cmpint (extents.y_bearing, ==, 498);
    g_assert_cmpint (extents.width, ==, 381);
    g_assert_cmpint (extents.height, ==, -510);
  
    hb_font_destroy (font);
  
    hb_face_t *face_j = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,3041,4C2E.otf");
    g_assert (face_j);
    hb_font_t *font_j = hb_font_create (face_j);
    hb_face_destroy (face_j);
    g_assert (font_j);
    hb_ot_font_set_funcs (font_j);
  
    hb_bool_t result_j = hb_font_get_glyph_extents (font_j, 3, &extents);
    g_assert (result_j);
  
    g_assert_cmpint (extents.x_bearing, ==, 34);
    g_assert_cmpint (extents.y_bearing, ==, 840);
    g_assert_cmpint (extents.width, ==, 920);
    g_assert_cmpint (extents.height, ==, -907);
  
    hb_font_destroy (font_j);
  }
  
  static void
  test_extents_cff1_flex (void)
  {
    hb_face_t *face = hb_test_open_font_file ("fonts/cff1_flex.otf");
    g_assert (face);
    hb_font_t *font = hb_font_create (face);
    hb_face_destroy (face);
    g_assert (font);
    hb_ot_font_set_funcs (font);
  
    hb_glyph_extents_t  extents;
    hb_bool_t result = hb_font_get_glyph_extents (font, 1, &extents);
    g_assert (result);
  
    g_assert_cmpint (extents.x_bearing, ==, -20);
    g_assert_cmpint (extents.y_bearing, ==, 520);
    g_assert_cmpint (extents.width, ==, 540);
    g_assert_cmpint (extents.height, ==, -540);
  
    hb_font_destroy (font);
  }
  
  static void
  test_extents_cff1_seac (void)
  {
    hb_face_t *face = hb_test_open_font_file ("fonts/cff1_seac.otf");
    g_assert (face);
    hb_font_t *font = hb_font_create (face);
    hb_face_destroy (face);
    g_assert (font);
    hb_ot_font_set_funcs (font);
  
    hb_glyph_extents_t  extents;
    hb_bool_t result = hb_font_get_glyph_extents (font, 3, &extents); /* Agrave */
    g_assert (result);
  
    g_assert_cmpint (extents.x_bearing, ==, 3);
    g_assert_cmpint (extents.y_bearing, ==, 861);
    g_assert_cmpint (extents.width, ==, 538);
    g_assert_cmpint (extents.height, ==, -861);
  
    result = hb_font_get_glyph_extents (font, 4, &extents); /* Udieresis */
    g_assert (result);
  
    g_assert_cmpint (extents.x_bearing, ==, 87);
    g_assert_cmpint (extents.y_bearing, ==, 827);
    g_assert_cmpint (extents.width, ==, 471);
    g_assert_cmpint (extents.height, ==, -839);
  
    hb_font_destroy (font);
  }
  
  static void
  test_extents_cff2 (void)
  {
    hb_face_t *face = hb_test_open_font_file ("fonts/AdobeVFPrototype.abc.otf");
    g_assert (face);
    hb_font_t *font = hb_font_create (face);
    hb_face_destroy (face);
    g_assert (font);
    hb_ot_font_set_funcs (font);
  
    hb_glyph_extents_t  extents;
    hb_bool_t result = hb_font_get_glyph_extents (font, 1, &extents);
    g_assert (result);
  
    g_assert_cmpint (extents.x_bearing, ==, 46);
    g_assert_cmpint (extents.y_bearing, ==, 487);
    g_assert_cmpint (extents.width, ==, 455);
    g_assert_cmpint (extents.height, ==, -500);
  
    float coords[2] = { 600.0f, 50.0f };
    hb_font_set_var_coords_design (font, coords, 2);
    result = hb_font_get_glyph_extents (font, 1, &extents);
    g_assert (result);
  
    g_assert_cmpint (extents.x_bearing, ==, 38);
    g_assert_cmpint (extents.y_bearing, ==, 493);
    g_assert_cmpint (extents.width, ==, 480);
    g_assert_cmpint (extents.height, ==, -507);
  
    hb_font_destroy (font);
  }
  
  static void
  test_extents_cff2_vsindex (void)
  {
    hb_face_t *face = hb_test_open_font_file ("fonts/AdobeVFPrototype_vsindex.otf");
    g_assert (face);
    hb_font_t *font = hb_font_create (face);
    hb_face_destroy (face);
    g_assert (font);
    hb_ot_font_set_funcs (font);
  
    hb_glyph_extents_t  extents;
    float coords[2] = { 800.0f, 50.0f };
    hb_font_set_var_coords_design (font, coords, 2);
    hb_bool_t result = hb_font_get_glyph_extents (font, 1, &extents);
    g_assert (result);
  
    g_assert_cmpint (extents.x_bearing, ==, 12);
    g_assert_cmpint (extents.y_bearing, ==, 655);
    g_assert_cmpint (extents.width, ==, 652);
    g_assert_cmpint (extents.height, ==, -655);
  
    result = hb_font_get_glyph_extents (font, 2, &extents);
    g_assert (result);
  
    g_assert_cmpint (extents.x_bearing, ==, 8);
    g_assert_cmpint (extents.y_bearing, ==, 669);
    g_assert_cmpint (extents.width, ==, 649);
    g_assert_cmpint (extents.height, ==, -669);
  
    hb_font_destroy (font);
  }
  
  static void
  test_extents_cff2_vsindex_named_instance (void)
  {
    hb_face_t *face = hb_test_open_font_file ("fonts/AdobeVFPrototype_vsindex.otf");
    g_assert (face);
    hb_font_t *font = hb_font_create (face);
    hb_face_destroy (face);
    g_assert (font);
    hb_ot_font_set_funcs (font);
  
    hb_font_set_var_named_instance (font, 6); // 6 (BlackMediumContrast): 900, 50
    hb_glyph_extents_t  extents;
    hb_bool_t result = hb_font_get_glyph_extents (font, 1, &extents);
    g_assert (result);
  
    g_assert_cmpint (extents.x_bearing, ==, 13);
    g_assert_cmpint (extents.y_bearing, ==, 652);
    g_assert_cmpint (extents.width, ==, 653);
    g_assert_cmpint (extents.height, ==, -652);
  
    result = hb_font_get_glyph_extents (font, 2, &extents);
    g_assert (result);
  
    g_assert_cmpint (extents.x_bearing, ==, 6);
    g_assert_cmpint (extents.y_bearing, ==, 675);
    g_assert_cmpint (extents.width, ==, 647);
    g_assert_cmpint (extents.height, ==, -675);
  
    hb_font_destroy (font);
  }
  
  int
  main (int argc, char **argv)
  {
    hb_test_init (&argc, &argv);
  
    hb_test_add (test_extents_cff1);
    hb_test_add (test_extents_cff1_flex);
    hb_test_add (test_extents_cff1_seac);
    hb_test_add (test_extents_cff2);
    hb_test_add (test_extents_cff2_vsindex);
    hb_test_add (test_extents_cff2_vsindex_named_instance);
  
    return hb_test_run ();
  }
  

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