HarfBuzz text shaping engine
http://harfbuzz.github.io/
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189 lines
8.0 KiB
189 lines
8.0 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.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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