HarfBuzz text shaping engine
http://harfbuzz.github.io/
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76 lines
2.6 KiB
76 lines
2.6 KiB
/* |
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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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