190 lines
8.0 KiB
C
190 lines
8.0 KiB
C
/*
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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.h>
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/* Unit tests for hb-style.h */
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#define assert_cmpfloat(n1, n2) g_assert_cmpint ((int) (n1 * 100.f), ==, (int) (n2 * 100.f))
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static void
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test_empty_face (void)
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{
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hb_font_t *empty = hb_font_get_empty ();
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assert_cmpfloat (hb_style_get_value (empty, HB_STYLE_TAG_ITALIC), 0);
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assert_cmpfloat (hb_style_get_value (empty, HB_STYLE_TAG_OPTICAL_SIZE), 12);
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assert_cmpfloat (hb_style_get_value (empty, HB_STYLE_TAG_SLANT_ANGLE), 0);
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assert_cmpfloat (hb_style_get_value (empty, HB_STYLE_TAG_WIDTH), 100);
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assert_cmpfloat (hb_style_get_value (empty, HB_STYLE_TAG_WEIGHT), 400);
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}
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static void
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test_regular_face (void)
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{
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hb_face_t *face = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
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hb_font_t *font = hb_font_create (face);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_ITALIC), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_OPTICAL_SIZE), 12);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_ANGLE), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WIDTH), 100);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WEIGHT), 400);
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hb_font_destroy (font);
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hb_face_destroy (face);
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}
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static void
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test_face_user_setting (void)
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{
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hb_face_t *face = hb_test_open_font_file ("fonts/AdobeVFPrototype_vsindex.otf");
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hb_font_t *font = hb_font_create (face);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_ITALIC), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_OPTICAL_SIZE), 12);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_ANGLE), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WIDTH), 100);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WEIGHT), 389.34f); /* its default weight */
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assert_cmpfloat (hb_style_get_value (font, (hb_style_tag_t) HB_TAG ('C','N','T','R')), 0);
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hb_font_set_var_named_instance (font, 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_ITALIC), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_OPTICAL_SIZE), 12);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_ANGLE), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WIDTH), 100);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WEIGHT), 200);
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assert_cmpfloat (hb_style_get_value (font, (hb_style_tag_t) HB_TAG ('C','N','T','R')), 0);
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hb_font_set_var_named_instance (font, 1);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_ITALIC), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_OPTICAL_SIZE), 12);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_ANGLE), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WIDTH), 100);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WEIGHT), 300);
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assert_cmpfloat (hb_style_get_value (font, (hb_style_tag_t) HB_TAG ('C','N','T','R')), 0);
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hb_font_set_var_named_instance (font, 2);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_ITALIC), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_OPTICAL_SIZE), 12);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_ANGLE), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WIDTH), 100);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WEIGHT), 400);
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assert_cmpfloat (hb_style_get_value (font, (hb_style_tag_t) HB_TAG ('C','N','T','R')), 0);
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hb_font_set_var_named_instance (font, 3);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_ITALIC), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_OPTICAL_SIZE), 12);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_ANGLE), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WIDTH), 100);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WEIGHT),600);
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assert_cmpfloat (hb_style_get_value (font, (hb_style_tag_t) HB_TAG ('C','N','T','R')), 0);
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hb_font_set_var_named_instance (font, 4);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_ITALIC), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_OPTICAL_SIZE), 12);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_ANGLE), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WIDTH), 100);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WEIGHT), 700);
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assert_cmpfloat (hb_style_get_value (font, (hb_style_tag_t) HB_TAG ('C','N','T','R')), 0);
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hb_font_set_var_named_instance (font, 5);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_ITALIC), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_OPTICAL_SIZE), 12);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_ANGLE), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WIDTH), 100);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WEIGHT), 900);
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assert_cmpfloat (hb_style_get_value (font, (hb_style_tag_t) HB_TAG ('C','N','T','R')), 0);
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hb_font_set_var_named_instance (font, 6);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_ITALIC), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_OPTICAL_SIZE), 12);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_ANGLE), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WIDTH), 100);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WEIGHT), 900);
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assert_cmpfloat (hb_style_get_value (font, (hb_style_tag_t) HB_TAG ('C','N','T','R')), 50);
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hb_font_set_var_named_instance (font, 7);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_ITALIC), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_OPTICAL_SIZE), 12);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_ANGLE), 0);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WIDTH), 100);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_WEIGHT), 900);
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assert_cmpfloat (hb_style_get_value (font, (hb_style_tag_t) HB_TAG ('C','N','T','R')), 100);
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hb_font_destroy (font);
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hb_face_destroy (face);
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}
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static void
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test_synthetic_slant (void)
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{
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hb_face_t *face = hb_test_open_font_file ("fonts/AdobeVFPrototype_vsindex.otf");
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hb_font_t *font = hb_font_create (face);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_RATIO), 0);
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hb_font_set_synthetic_slant (font, 0.2);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_RATIO), 0.2);
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hb_font_destroy (font);
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hb_face_destroy (face);
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face = hb_test_open_font_file ("fonts/notosansitalic.ttf");
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font = hb_font_create (face);
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/* We expect a negative angle for a typical italic font,
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* which should give us a positive ratio
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*/
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_ANGLE), -12);
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assert_cmpfloat (hb_style_get_value (font, HB_STYLE_TAG_SLANT_RATIO), 0.21);
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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_empty_face);
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hb_test_add (test_regular_face);
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hb_test_add (test_face_user_setting);
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hb_test_add (test_synthetic_slant);
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return hb_test_run ();
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}
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