HarfBuzz text shaping engine
http://harfbuzz.github.io/
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502 lines
14 KiB
502 lines
14 KiB
/* |
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* Copyright © 2011 Google, 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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* Google Author(s): Behdad Esfahbod |
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*/ |
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#include "hb-test.h" |
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/* Unit tests for hb-font.h */ |
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static const char test_data[] = "test\0data"; |
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static void |
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test_face_empty (void) |
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{ |
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g_assert (hb_face_get_empty ()); |
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g_assert (hb_face_get_empty () == hb_face_create (hb_blob_get_empty (), 0)); |
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g_assert (hb_face_get_empty () == hb_face_create (NULL, 0)); |
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g_assert (hb_face_reference_table (hb_face_get_empty (), HB_TAG ('h','e','a','d')) == hb_blob_get_empty ()); |
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g_assert_cmpint (hb_face_get_upem (hb_face_get_empty ()), ==, 1000); |
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} |
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static void |
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test_face_create (void) |
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{ |
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hb_face_t *face; |
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hb_blob_t *blob; |
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blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL); |
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face = hb_face_create (blob, 0); |
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hb_blob_destroy (blob); |
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g_assert (hb_face_reference_table (face, HB_TAG ('h','e','a','d')) == hb_blob_get_empty ()); |
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g_assert_cmpint (hb_face_get_upem (face), ==, 1000); |
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hb_face_destroy (face); |
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} |
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static void |
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free_up (void *user_data) |
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{ |
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int *freed = (int *) user_data; |
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g_assert (!*freed); |
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(*freed)++; |
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} |
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static hb_blob_t * |
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get_table (hb_face_t *face, hb_tag_t tag, void *user_data) |
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{ |
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if (tag == HB_TAG ('a','b','c','d')) |
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return hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL); |
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return hb_blob_get_empty (); |
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} |
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static void |
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test_face_createfortables (void) |
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{ |
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hb_face_t *face; |
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hb_blob_t *blob; |
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const char *data; |
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unsigned int len; |
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int freed = 0; |
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face = hb_face_create_for_tables (get_table, &freed, free_up); |
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g_assert (!freed); |
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g_assert (hb_face_reference_table (face, HB_TAG ('h','e','a','d')) == hb_blob_get_empty ()); |
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blob = hb_face_reference_table (face, HB_TAG ('a','b','c','d')); |
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g_assert (blob != hb_blob_get_empty ()); |
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data = hb_blob_get_data (blob, &len); |
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g_assert_cmpint (len, ==, sizeof (test_data)); |
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g_assert (0 == memcmp (data, test_data, sizeof (test_data))); |
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hb_blob_destroy (blob); |
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g_assert_cmpint (hb_face_get_upem (face), ==, 1000); |
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hb_face_destroy (face); |
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g_assert (freed); |
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} |
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static void |
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_test_font_nil_funcs (hb_font_t *font) |
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{ |
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hb_codepoint_t glyph; |
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hb_position_t x, y; |
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hb_glyph_extents_t extents; |
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x = y = 13; |
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g_assert (!hb_font_get_glyph_contour_point (font, 17, 2, &x, &y)); |
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g_assert_cmpint (x, ==, 0); |
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g_assert_cmpint (y, ==, 0); |
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x = hb_font_get_glyph_h_advance (font, 17); |
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g_assert_cmpint (x, ==, 0); |
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extents.x_bearing = extents.y_bearing = 13; |
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extents.width = extents.height = 15; |
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hb_font_get_glyph_extents (font, 17, &extents); |
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g_assert_cmpint (extents.x_bearing, ==, 0); |
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g_assert_cmpint (extents.y_bearing, ==, 0); |
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g_assert_cmpint (extents.width, ==, 0); |
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g_assert_cmpint (extents.height, ==, 0); |
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glyph = 3; |
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g_assert (!hb_font_get_glyph (font, 17, 2, &glyph)); |
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g_assert_cmpint (glyph, ==, 0); |
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x = 13; |
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x = hb_font_get_glyph_h_kerning (font, 17, 19); |
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g_assert_cmpint (x, ==, 0); |
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} |
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static void |
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_test_fontfuncs_nil (hb_font_funcs_t *ffuncs) |
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{ |
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hb_blob_t *blob; |
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hb_face_t *face; |
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hb_font_t *font; |
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hb_font_t *subfont; |
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int freed = 0; |
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blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL); |
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face = hb_face_create (blob, 0); |
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hb_blob_destroy (blob); |
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g_assert (!hb_face_is_immutable (face)); |
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font = hb_font_create (face); |
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g_assert (font); |
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g_assert (hb_face_is_immutable (face)); |
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hb_face_destroy (face); |
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hb_font_set_funcs (font, ffuncs, &freed, free_up); |
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g_assert_cmpint (freed, ==, 0); |
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_test_font_nil_funcs (font); |
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subfont = hb_font_create_sub_font (font); |
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g_assert (subfont); |
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g_assert_cmpint (freed, ==, 0); |
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hb_font_destroy (font); |
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g_assert_cmpint (freed, ==, 0); |
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_test_font_nil_funcs (subfont); |
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hb_font_destroy (subfont); |
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g_assert_cmpint (freed, ==, 1); |
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} |
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static void |
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test_fontfuncs_empty (void) |
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{ |
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g_assert (hb_font_funcs_get_empty ()); |
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g_assert (hb_font_funcs_is_immutable (hb_font_funcs_get_empty ())); |
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_test_fontfuncs_nil (hb_font_funcs_get_empty ()); |
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} |
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static void |
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test_fontfuncs_nil (void) |
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{ |
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hb_font_funcs_t *ffuncs; |
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ffuncs = hb_font_funcs_create (); |
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g_assert (!hb_font_funcs_is_immutable (ffuncs)); |
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_test_fontfuncs_nil (hb_font_funcs_get_empty ()); |
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hb_font_funcs_destroy (ffuncs); |
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} |
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static hb_bool_t |
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contour_point_func1 (hb_font_t *font, void *font_data, |
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hb_codepoint_t glyph, unsigned int point_index, |
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hb_position_t *x, hb_position_t *y, |
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void *user_data) |
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{ |
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if (glyph == 1) { |
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*x = 2; |
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*y = 3; |
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return TRUE; |
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} |
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if (glyph == 2) { |
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*x = 4; |
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*y = 5; |
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return TRUE; |
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} |
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return FALSE; |
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} |
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static hb_bool_t |
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contour_point_func2 (hb_font_t *font, void *font_data, |
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hb_codepoint_t glyph, unsigned int point_index, |
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hb_position_t *x, hb_position_t *y, |
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void *user_data) |
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{ |
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if (glyph == 1) { |
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*x = 6; |
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*y = 7; |
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return TRUE; |
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} |
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return hb_font_get_glyph_contour_point (hb_font_get_parent (font), |
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glyph, point_index, x, y); |
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} |
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static hb_position_t |
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glyph_h_advance_func1 (hb_font_t *font, void *font_data, |
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hb_codepoint_t glyph, |
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void *user_data) |
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{ |
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if (glyph == 1) |
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return 8; |
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return 0; |
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} |
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static void |
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test_fontfuncs_subclassing (void) |
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{ |
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hb_blob_t *blob; |
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hb_face_t *face; |
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hb_font_funcs_t *ffuncs1; |
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hb_font_funcs_t *ffuncs2; |
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hb_font_t *font1; |
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hb_font_t *font2; |
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hb_font_t *font3; |
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hb_position_t x; |
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hb_position_t y; |
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blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL); |
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face = hb_face_create (blob, 0); |
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hb_blob_destroy (blob); |
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font1 = hb_font_create (face); |
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hb_face_destroy (face); |
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hb_font_set_scale (font1, 10, 10); |
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/* setup font1 */ |
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ffuncs1 = hb_font_funcs_create (); |
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hb_font_funcs_set_glyph_contour_point_func (ffuncs1, contour_point_func1, NULL, NULL); |
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hb_font_funcs_set_glyph_h_advance_func (ffuncs1, glyph_h_advance_func1, NULL, NULL); |
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hb_font_set_funcs (font1, ffuncs1, NULL, NULL); |
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hb_font_funcs_destroy (ffuncs1); |
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x = y = 1; |
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g_assert (hb_font_get_glyph_contour_point_for_origin (font1, 1, 2, HB_DIRECTION_LTR, &x, &y)); |
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g_assert_cmpint (x, ==, 2); |
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g_assert_cmpint (y, ==, 3); |
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g_assert (hb_font_get_glyph_contour_point_for_origin (font1, 2, 5, HB_DIRECTION_LTR, &x, &y)); |
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g_assert_cmpint (x, ==, 4); |
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g_assert_cmpint (y, ==, 5); |
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g_assert (!hb_font_get_glyph_contour_point_for_origin (font1, 3, 7, HB_DIRECTION_RTL, &x, &y)); |
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g_assert_cmpint (x, ==, 0); |
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g_assert_cmpint (y, ==, 0); |
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x = hb_font_get_glyph_h_advance (font1, 1); |
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g_assert_cmpint (x, ==, 8); |
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x = hb_font_get_glyph_h_advance (font1, 2); |
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g_assert_cmpint (x, ==, 0); |
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font2 = hb_font_create_sub_font (font1); |
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g_assert (hb_font_is_immutable (font1)); |
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hb_font_destroy (font1); |
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/* setup font2 to override some funcs */ |
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ffuncs2 = hb_font_funcs_create (); |
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hb_font_funcs_set_glyph_contour_point_func (ffuncs2, contour_point_func2, NULL, NULL); |
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hb_font_set_funcs (font2, ffuncs2, NULL, NULL); |
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hb_font_funcs_destroy (ffuncs2); |
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x = y = 1; |
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g_assert (hb_font_get_glyph_contour_point_for_origin (font2, 1, 2, HB_DIRECTION_LTR, &x, &y)); |
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g_assert_cmpint (x, ==, 6); |
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g_assert_cmpint (y, ==, 7); |
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g_assert (hb_font_get_glyph_contour_point_for_origin (font2, 2, 5, HB_DIRECTION_RTL, &x, &y)); |
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g_assert_cmpint (x, ==, 4); |
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g_assert_cmpint (y, ==, 5); |
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g_assert (!hb_font_get_glyph_contour_point_for_origin (font2, 3, 7, HB_DIRECTION_LTR, &x, &y)); |
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g_assert_cmpint (x, ==, 0); |
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g_assert_cmpint (y, ==, 0); |
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x = hb_font_get_glyph_h_advance (font2, 1); |
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g_assert_cmpint (x, ==, 8); |
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x = hb_font_get_glyph_h_advance (font2, 2); |
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g_assert_cmpint (x, ==, 0); |
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font3 = hb_font_create_sub_font (font2); |
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g_assert (hb_font_is_immutable (font2)); |
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hb_font_destroy (font2); |
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/* setup font3 to override scale */ |
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hb_font_set_scale (font3, 20, 30); |
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x = y = 1; |
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g_assert (hb_font_get_glyph_contour_point_for_origin (font3, 1, 2, HB_DIRECTION_RTL, &x, &y)); |
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g_assert_cmpint (x, ==, 6*2); |
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g_assert_cmpint (y, ==, 7*3); |
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g_assert (hb_font_get_glyph_contour_point_for_origin (font3, 2, 5, HB_DIRECTION_LTR, &x, &y)); |
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g_assert_cmpint (x, ==, 4*2); |
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g_assert_cmpint (y, ==, 5*3); |
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g_assert (!hb_font_get_glyph_contour_point_for_origin (font3, 3, 7, HB_DIRECTION_LTR, &x, &y)); |
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g_assert_cmpint (x, ==, 0*2); |
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g_assert_cmpint (y, ==, 0*3); |
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x = hb_font_get_glyph_h_advance (font3, 1); |
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g_assert_cmpint (x, ==, 8*2); |
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x = hb_font_get_glyph_h_advance (font3, 2); |
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g_assert_cmpint (x, ==, 0*2); |
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hb_font_destroy (font3); |
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} |
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static void |
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test_font_empty (void) |
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{ |
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g_assert (hb_font_get_empty ()); |
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g_assert (hb_font_get_empty () == hb_font_create (hb_face_get_empty ())); |
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g_assert (hb_font_get_empty () == hb_font_create (NULL)); |
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g_assert (hb_font_get_empty () == hb_font_create_sub_font (NULL)); |
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g_assert (hb_font_is_immutable (hb_font_get_empty ())); |
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g_assert (hb_font_get_face (hb_font_get_empty ()) == hb_face_get_empty ()); |
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g_assert (hb_font_get_parent (hb_font_get_empty ()) == NULL); |
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} |
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static void |
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test_font_properties (void) |
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{ |
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hb_blob_t *blob; |
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hb_face_t *face; |
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hb_font_t *font; |
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hb_font_t *subfont; |
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int x_scale, y_scale; |
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unsigned int x_ppem, y_ppem; |
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blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL); |
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face = hb_face_create (blob, 0); |
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hb_blob_destroy (blob); |
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font = hb_font_create (face); |
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hb_face_destroy (face); |
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g_assert (hb_font_get_face (font) == face); |
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g_assert (hb_font_get_parent (font) == NULL); |
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/* Check scale */ |
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hb_font_get_scale (font, NULL, NULL); |
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x_scale = y_scale = 13; |
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hb_font_get_scale (font, &x_scale, NULL); |
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g_assert_cmpint (x_scale, ==, 0); |
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x_scale = y_scale = 13; |
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hb_font_get_scale (font, NULL, &y_scale); |
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g_assert_cmpint (y_scale, ==, 0); |
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x_scale = y_scale = 13; |
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hb_font_get_scale (font, &x_scale, &y_scale); |
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g_assert_cmpint (x_scale, ==, 0); |
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g_assert_cmpint (y_scale, ==, 0); |
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hb_font_set_scale (font, 17, 19); |
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x_scale = y_scale = 13; |
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hb_font_get_scale (font, &x_scale, &y_scale); |
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g_assert_cmpint (x_scale, ==, 17); |
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g_assert_cmpint (y_scale, ==, 19); |
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/* Check ppem */ |
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hb_font_get_ppem (font, NULL, NULL); |
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x_ppem = y_ppem = 13; |
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hb_font_get_ppem (font, &x_ppem, NULL); |
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g_assert_cmpint (x_ppem, ==, 0); |
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x_ppem = y_ppem = 13; |
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hb_font_get_ppem (font, NULL, &y_ppem); |
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g_assert_cmpint (y_ppem, ==, 0); |
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x_ppem = y_ppem = 13; |
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hb_font_get_ppem (font, &x_ppem, &y_ppem); |
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g_assert_cmpint (x_ppem, ==, 0); |
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g_assert_cmpint (y_ppem, ==, 0); |
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hb_font_set_ppem (font, 17, 19); |
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x_ppem = y_ppem = 13; |
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hb_font_get_ppem (font, &x_ppem, &y_ppem); |
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g_assert_cmpint (x_ppem, ==, 17); |
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g_assert_cmpint (y_ppem, ==, 19); |
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/* Check immutable */ |
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g_assert (!hb_font_is_immutable (font)); |
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hb_font_make_immutable (font); |
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g_assert (hb_font_is_immutable (font)); |
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hb_font_set_scale (font, 10, 12); |
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x_scale = y_scale = 13; |
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hb_font_get_scale (font, &x_scale, &y_scale); |
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g_assert_cmpint (x_scale, ==, 17); |
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g_assert_cmpint (y_scale, ==, 19); |
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hb_font_set_ppem (font, 10, 12); |
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x_ppem = y_ppem = 13; |
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hb_font_get_ppem (font, &x_ppem, &y_ppem); |
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g_assert_cmpint (x_ppem, ==, 17); |
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g_assert_cmpint (y_ppem, ==, 19); |
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/* sub_font now */ |
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subfont = hb_font_create_sub_font (font); |
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hb_font_destroy (font); |
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g_assert (hb_font_get_parent (subfont) == font); |
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g_assert (hb_font_get_face (subfont) == face); |
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/* scale */ |
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x_scale = y_scale = 13; |
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hb_font_get_scale (subfont, &x_scale, &y_scale); |
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g_assert_cmpint (x_scale, ==, 17); |
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g_assert_cmpint (y_scale, ==, 19); |
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hb_font_set_scale (subfont, 10, 12); |
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x_scale = y_scale = 13; |
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hb_font_get_scale (subfont, &x_scale, &y_scale); |
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g_assert_cmpint (x_scale, ==, 10); |
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g_assert_cmpint (y_scale, ==, 12); |
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x_scale = y_scale = 13; |
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hb_font_get_scale (font, &x_scale, &y_scale); |
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g_assert_cmpint (x_scale, ==, 17); |
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g_assert_cmpint (y_scale, ==, 19); |
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/* ppem */ |
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x_ppem = y_ppem = 13; |
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hb_font_get_ppem (subfont, &x_ppem, &y_ppem); |
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g_assert_cmpint (x_ppem, ==, 17); |
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g_assert_cmpint (y_ppem, ==, 19); |
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hb_font_set_ppem (subfont, 10, 12); |
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x_ppem = y_ppem = 13; |
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hb_font_get_ppem (subfont, &x_ppem, &y_ppem); |
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g_assert_cmpint (x_ppem, ==, 10); |
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g_assert_cmpint (y_ppem, ==, 12); |
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x_ppem = y_ppem = 13; |
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hb_font_get_ppem (font, &x_ppem, &y_ppem); |
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g_assert_cmpint (x_ppem, ==, 17); |
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g_assert_cmpint (y_ppem, ==, 19); |
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hb_font_destroy (subfont); |
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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_face_empty); |
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hb_test_add (test_face_create); |
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hb_test_add (test_face_createfortables); |
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hb_test_add (test_fontfuncs_empty); |
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hb_test_add (test_fontfuncs_nil); |
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hb_test_add (test_fontfuncs_subclassing); |
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|
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hb_test_add (test_font_empty); |
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hb_test_add (test_font_properties); |
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|
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return hb_test_run(); |
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}
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