HarfBuzz text shaping engine
http://harfbuzz.github.io/
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268 lines
8.0 KiB
268 lines
8.0 KiB
/* |
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* Copyright © 2019 Adobe 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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* Adobe Author(s): Michiharu Ariza |
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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 glyph advance widths and extents of TrueType variable fonts */ |
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static void |
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test_extents_tt_var (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/SourceSansVariable-Roman-nohvar-41,C1.ttf"); |
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g_assert (face); |
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hb_font_t *font = hb_font_create (face); |
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hb_face_destroy (face); |
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g_assert (font); |
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hb_ot_font_set_funcs (font); |
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hb_glyph_extents_t extents; |
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hb_bool_t result = hb_font_get_glyph_extents (font, 2, &extents); |
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g_assert (result); |
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g_assert_cmpint (extents.x_bearing, ==, 10); |
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g_assert_cmpint (extents.y_bearing, ==, 846); |
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g_assert_cmpint (extents.width, ==, 500); |
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g_assert_cmpint (extents.height, ==, -846); |
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float coords[1] = { 500.0f }; |
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hb_font_set_var_coords_design (font, coords, 1); |
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result = hb_font_get_glyph_extents (font, 2, &extents); |
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g_assert (result); |
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g_assert_cmpint (extents.x_bearing, ==, 0); |
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g_assert_cmpint (extents.y_bearing, ==, 874); |
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g_assert_cmpint (extents.width, ==, 551); |
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g_assert_cmpint (extents.height, ==, -874); |
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hb_font_destroy (font); |
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} |
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static void |
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test_advance_tt_var_nohvar (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/SourceSansVariable-Roman-nohvar-41,C1.ttf"); |
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g_assert (face); |
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hb_font_t *font = hb_font_create (face); |
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hb_face_destroy (face); |
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g_assert (font); |
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hb_ot_font_set_funcs (font); |
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hb_position_t x, y; |
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hb_font_get_glyph_advance_for_direction(font, 2, HB_DIRECTION_LTR, &x, &y); |
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g_assert_cmpint (x, ==, 520); |
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g_assert_cmpint (y, ==, 0); |
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hb_font_get_glyph_advance_for_direction(font, 2, HB_DIRECTION_TTB, &x, &y); |
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g_assert_cmpint (x, ==, 0); |
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g_assert_cmpint (y, ==, -1257); |
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float coords[1] = { 500.0f }; |
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hb_font_set_var_coords_design (font, coords, 1); |
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hb_font_get_glyph_advance_for_direction(font, 2, HB_DIRECTION_LTR, &x, &y); |
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g_assert_cmpint (x, ==, 551); |
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g_assert_cmpint (y, ==, 0); |
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hb_font_get_glyph_advance_for_direction(font, 2, HB_DIRECTION_TTB, &x, &y); |
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g_assert_cmpint (x, ==, 0); |
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g_assert_cmpint (y, ==, -1257); |
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hb_font_destroy (font); |
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} |
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static void |
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test_advance_tt_var_hvarvvar (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/SourceSerifVariable-Roman-VVAR.abc.ttf"); |
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g_assert (face); |
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hb_font_t *font = hb_font_create (face); |
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hb_face_destroy (face); |
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g_assert (font); |
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hb_ot_font_set_funcs (font); |
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hb_position_t x, y; |
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hb_font_get_glyph_advance_for_direction(font, 1, HB_DIRECTION_LTR, &x, &y); |
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g_assert_cmpint (x, ==, 508); |
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g_assert_cmpint (y, ==, 0); |
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hb_font_get_glyph_advance_for_direction(font, 1, HB_DIRECTION_TTB, &x, &y); |
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g_assert_cmpint (x, ==, 0); |
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g_assert_cmpint (y, ==, -1000); |
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float coords[1] = { 700.0f }; |
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hb_font_set_var_coords_design (font, coords, 1); |
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hb_font_get_glyph_advance_for_direction(font, 1, HB_DIRECTION_LTR, &x, &y); |
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g_assert_cmpint (x, ==, 531); |
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g_assert_cmpint (y, ==, 0); |
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hb_font_get_glyph_advance_for_direction(font, 1, HB_DIRECTION_TTB, &x, &y); |
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g_assert_cmpint (x, ==, 0); |
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g_assert_cmpint (y, ==, -1012); |
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hb_font_destroy (font); |
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} |
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static void |
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test_advance_tt_var_anchor (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/SourceSansVariable-Roman.anchor.ttf"); |
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g_assert (face); |
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hb_font_t *font = hb_font_create (face); |
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hb_face_destroy (face); |
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g_assert (font); |
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hb_ot_font_set_funcs (font); |
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hb_glyph_extents_t extents; |
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hb_bool_t result = hb_font_get_glyph_extents (font, 2, &extents); |
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g_assert (result); |
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g_assert_cmpint (extents.x_bearing, ==, 56); |
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g_assert_cmpint (extents.y_bearing, ==, 672); |
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g_assert_cmpint (extents.width, ==, 556); |
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g_assert_cmpint (extents.height, ==, -684); |
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float coords[1] = { 500.0f }; |
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hb_font_set_var_coords_design (font, coords, 1); |
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result = hb_font_get_glyph_extents (font, 2, &extents); |
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g_assert (result); |
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g_assert_cmpint (extents.x_bearing, ==, 50); |
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g_assert_cmpint (extents.y_bearing, ==, 667); |
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g_assert_cmpint (extents.width, ==, 592); |
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g_assert_cmpint (extents.height, ==, -679); |
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hb_font_destroy (font); |
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} |
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static void |
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test_extents_tt_var_comp (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/SourceSansVariable-Roman.modcomp.ttf"); |
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g_assert (face); |
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hb_font_t *font = hb_font_create (face); |
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hb_face_destroy (face); |
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g_assert (font); |
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hb_ot_font_set_funcs (font); |
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hb_glyph_extents_t extents; |
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float coords[1] = { 800.0f }; |
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hb_font_set_var_coords_design (font, coords, 1); |
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hb_bool_t result; |
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result = hb_font_get_glyph_extents (font, 2, &extents); /* Ccedilla, cedilla y-scaled by 0.8, with unscaled component offset */ |
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g_assert (result); |
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g_assert_cmpint (extents.x_bearing, ==, 19); |
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g_assert_cmpint (extents.y_bearing, ==, 663); |
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g_assert_cmpint (extents.width, ==, 519); |
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g_assert_cmpint (extents.height, ==, -895); |
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result = hb_font_get_glyph_extents (font, 3, &extents); /* Cacute, acute y-scaled by 0.8, with unscaled component offset (default) */ |
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g_assert (result); |
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g_assert_cmpint (extents.x_bearing, ==, 19); |
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g_assert_cmpint (extents.y_bearing, ==, 909); |
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g_assert_cmpint (extents.width, ==, 519); |
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g_assert_cmpint (extents.height, ==, -921); |
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result = hb_font_get_glyph_extents (font, 4, &extents); /* Ccaron, caron y-scaled by 0.8, with scaled component offset */ |
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g_assert (result); |
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g_assert_cmpint (extents.x_bearing, ==, 19); |
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g_assert_cmpint (extents.y_bearing, ==, 866); |
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g_assert_cmpint (extents.width, ==, 519); |
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g_assert_cmpint (extents.height, ==, -878); |
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hb_font_destroy (font); |
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} |
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static void |
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test_advance_tt_var_comp_v (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/SourceSansVariable-Roman.modcomp.ttf"); |
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g_assert (face); |
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hb_font_t *font = hb_font_create (face); |
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hb_face_destroy (face); |
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g_assert (font); |
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hb_ot_font_set_funcs (font); |
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float coords[1] = { 800.0f }; |
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hb_font_set_var_coords_design (font, coords, 1); |
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hb_position_t x, y; |
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hb_font_get_glyph_advance_for_direction(font, 2, HB_DIRECTION_TTB, &x, &y); /* No VVAR; 'C' in composite Ccedilla determines metrics */ |
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g_assert_cmpint (x, ==, 0); |
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g_assert_cmpint (y, ==, -991); |
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hb_font_get_glyph_origin_for_direction(font, 2, HB_DIRECTION_TTB, &x, &y); |
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g_assert_cmpint (x, ==, 292); |
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g_assert_cmpint (y, ==, 1013); |
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hb_font_destroy (font); |
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} |
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static void |
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test_advance_tt_var_gvar_infer (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/TestGVAREight.ttf"); |
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hb_font_t *font = hb_font_create (face); |
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hb_ot_font_set_funcs (font); |
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hb_face_destroy (face); |
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int coords[6] = {100}; |
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hb_font_set_var_coords_normalized (font, coords, 6); |
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hb_glyph_extents_t extents = {0}; |
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g_assert (hb_font_get_glyph_extents (font, 4, &extents)); |
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hb_font_destroy (font); |
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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_extents_tt_var); |
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hb_test_add (test_advance_tt_var_nohvar); |
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hb_test_add (test_advance_tt_var_hvarvvar); |
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hb_test_add (test_advance_tt_var_anchor); |
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hb_test_add (test_extents_tt_var_comp); |
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hb_test_add (test_advance_tt_var_comp_v); |
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hb_test_add (test_advance_tt_var_gvar_infer); |
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return hb_test_run (); |
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}
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