harfbuzz/test/api/test-extents.c
Khaled Hosny 4d1f6e049c [COLR] Enable COLRv0 support in get_extents()
paint_glyph() supports COLRv0 but this code is never reached because of
the early return if version is not 1. This early return seems to be from
before COLRv0 extents were supported.
2024-10-07 13:24:14 -06:00

133 lines
4 KiB
C

/*
* Copyright © 2023 Red Hat, Inc.
*
* 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.
*
* Author(s): Matthias Clasen
*/
#include "hb-test.h"
static void
test_glyph_extents_color_v1 (void)
{
hb_face_t *face;
hb_font_t *font;
hb_glyph_extents_t extents;
hb_bool_t ret;
/* This font contains a COLRv1 glyph with a ClipBox,
* and various components without. The main thing
* we test here is that glyphs with no paint return
* 0,0,0,0 and not meaningless numbers.
*/
face = hb_test_open_font_file ("fonts/adwaita.ttf");
font = hb_font_create (face);
ret = hb_font_get_glyph_extents (font, 0, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 0 &&
extents.y_bearing == 0 &&
extents.width == 0 &&
extents.height == 0);
ret = hb_font_get_glyph_extents (font, 1, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 0 &&
extents.y_bearing == 0 &&
extents.width == 0 &&
extents.height == 0);
ret = hb_font_get_glyph_extents (font, 2, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 180 &&
extents.y_bearing == 960 &&
extents.width == 1060 &&
extents.height == -1220);
ret = hb_font_get_glyph_extents (font, 3, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 188 &&
extents.y_bearing == 950 &&
extents.width == 900 &&
extents.height == -1200);
ret = hb_font_get_glyph_extents (font, 4, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 413 &&
extents.y_bearing == 50 &&
extents.width == 150 &&
extents.height == -75);
ret = hb_font_get_glyph_extents (font, 5, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 638 &&
extents.y_bearing == 350 &&
extents.width == 600 &&
extents.height == -600);
ret = hb_font_get_glyph_extents (font, 1000, &extents);
g_assert_false (ret);
hb_font_destroy (font);
hb_face_destroy (face);
}
static void
test_glyph_extents_color_v0 (void)
{
hb_face_t *face;
hb_font_t *font;
hb_glyph_extents_t extents;
hb_bool_t ret;
/*
* This font contains a COLRv0 glyph with an empty default glyph
* to make sure we are getting extents from the COLRv0 layers.
*/
face = hb_test_open_font_file ("fonts/COLRv0.extents.ttf");
font = hb_font_create (face);
ret = hb_font_get_glyph_extents (font, 13, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 192 &&
extents.y_bearing == 573 &&
extents.width == 731 &&
extents.height == -758);
hb_font_destroy (font);
hb_face_destroy (face);
}
int
main (int argc, char **argv)
{
hb_test_init (&argc, &argv);
hb_test_add (test_glyph_extents_color_v1);
hb_test_add (test_glyph_extents_color_v0);
return hb_test_run();
}