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/*
* Copyright © 2019 Ebrahim Byagowi
*
* 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.
*/
#include "hb-test.h"
#include <hb-ot.h>
/* Unit tests for hb_font_[gs]et_var_coords_ */
static void
test_get_var_coords (void)
{
#ifndef G_APPROX_VALUE
#define G_APPROX_VALUE(a, b, epsilon) \
(((a) > (b) ? (a) - (b) : (b) - (a)) < (epsilon))
#endif
#define EPSILON 0.05f
hb_face_t *face = hb_test_open_font_file ("fonts/TestCFF2VF.otf");
hb_font_t *font = hb_font_create (face);
/* Normalized coords as input */
int normalized_coords[] = {100, 0};
hb_font_set_var_coords_normalized (font, normalized_coords, 2);
g_assert_cmpint ((int) hb_font_get_var_coords_design (font, NULL)[0], ==, 403);
g_assert_cmpint ((int) hb_font_get_var_coords_normalized (font, NULL)[0], ==, 100);
/* Design coords as input */
float design_coords[] = {206.f, 0};
hb_font_set_var_coords_design (font, design_coords, 2);
g_assert_cmpint ((int) hb_font_get_var_coords_normalized (font, NULL)[0], ==, -16117);
g_assert_cmpint ((int) hb_font_get_var_coords_design (font, NULL)[0], ==, 206);
for (float weight = 200; weight < 901; ++weight)
{
int normalized;
hb_ot_var_normalize_coords (face, 1, &weight, &normalized);
hb_font_set_var_coords_normalized (font, &normalized, 1);
float converted_back = hb_font_get_var_coords_design (font, NULL)[0];
// fprintf (stderr, "%f: %d => %f\n", weight, normalized, converted_back);
g_assert_true (G_APPROX_VALUE (converted_back, weight, EPSILON));
}
hb_font_destroy (font);
hb_face_destroy (face);
}
static void
test_get_var_get_axis_infos (void)
{
hb_face_t *face = hb_test_open_font_file ("fonts/Estedad-VF.ttf");
g_assert_cmpint (hb_ot_var_get_axis_count (face), ==, 2);
hb_ot_var_axis_info_t info;
unsigned c = 1;
g_assert_cmpint (hb_ot_var_get_axis_infos (face, 0, &c, &info), ==, 2);
g_assert (info.tag == HB_TAG ('w','g','h','t'));
g_assert_cmpint (c, ==, 1);
hb_ot_var_get_axis_infos (face, 1, &c, &info);
g_assert (info.tag == HB_TAG ('w','d','t','h'));
g_assert_cmpint (c, ==, 1);
hb_ot_var_get_axis_infos (face, 2, &c, &info);
g_assert_cmpint (c, ==, 0);
hb_face_destroy (face);
}
int
main (int argc, char **argv)
{
hb_test_init (&argc, &argv);
hb_test_add (test_get_var_coords);
hb_test_add (test_get_var_get_axis_infos);
return hb_test_run ();
}
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