77 lines
2.6 KiB
C
77 lines
2.6 KiB
C
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/*
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* Copyright © 2019 Ebrahim Byagowi
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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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#include "hb-test.h"
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#include <hb-ot.h>
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/* Unit tests for hb_font_[gs]et_var_coords_ */
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#ifndef G_APPROX_VALUE
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#define G_APPROX_VALUE(a, b, epsilon) \
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(((a) > (b) ? (a) - (b) : (b) - (a)) < (epsilon))
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#endif
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#define EPSILON 0.05f
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static void
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test_get_var_coords (void)
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{
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hb_face_t *face = hb_test_open_font_file ("fonts/TestCFF2VF.otf");
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hb_font_t *font = hb_font_create (face);
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/* Normalized coords as input */
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int normalized_coords[] = {100, 0};
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hb_font_set_var_coords_normalized (font, normalized_coords, 2);
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g_assert_cmpint ((int) hb_font_get_var_coords_design (font, NULL)[0], ==, 403);
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g_assert_cmpint ((int) hb_font_get_var_coords_normalized (font, NULL)[0], ==, 100);
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/* Design coords as input */
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float design_coords[] = {206.f, 0};
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hb_font_set_var_coords_design (font, design_coords, 2);
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g_assert_cmpint ((int) hb_font_get_var_coords_normalized (font, NULL)[0], ==, -16117);
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g_assert_cmpint ((int) hb_font_get_var_coords_design (font, NULL)[0], ==, 206);
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for (float weight = 200; weight < 901; ++weight)
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{
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int normalized;
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hb_ot_var_normalize_coords (face, 1, &weight, &normalized);
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hb_font_set_var_coords_normalized (font, &normalized, 1);
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float converted_back = hb_font_get_var_coords_design (font, NULL)[0];
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// fprintf (stderr, "%f: %d => %f\n", weight, normalized, converted_back);
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g_assert_true (G_APPROX_VALUE (converted_back, weight, EPSILON));
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}
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hb_font_destroy (font);
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hb_face_destroy (face);
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}
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int
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main (int argc, char **argv)
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{
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hb_test_init (&argc, &argv);
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hb_test_add (test_get_var_coords);
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return hb_test_run ();
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}
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