This test verifies the fix for https://github.com/harfbuzz/harfbuzz/issues/3274pull/3230/head
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/*
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* Copyright 2021 Red Hat, Inc |
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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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* Author(s): Matthias Clasen |
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*/ |
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#include "hb-test.h" |
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#include <hb.h> |
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/* test for https://github.com/harfbuzz/harfbuzz/issues/3274 */ |
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static void |
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test_hb_scale (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/Cantarell.A.otf"); |
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hb_font_t *font1 = hb_font_create (face); |
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hb_font_t *font2 = hb_font_create (face); |
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double scale = 64 * 1024 * 96./72.; |
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hb_font_set_scale (font1, scale, scale); |
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hb_font_set_scale (font2, - scale, - scale); |
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g_assert_cmpint (hb_font_get_glyph_h_advance (font1, 1), ==, - hb_font_get_glyph_h_advance (font2, 1)); |
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hb_font_destroy (font1); |
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hb_font_destroy (font2); |
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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_hb_scale); |
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return hb_test_run (); |
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} |
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