/* * Copyright © 2020 Ebrahim Byagowi * * 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. */ #include "hb-test.h" #include typedef struct user_data_t { char *str; unsigned size; unsigned consumed; } user_data_t; static void move_to (hb_position_t to_x, hb_position_t to_y, user_data_t *user_data) { user_data->consumed += snprintf (user_data->str + user_data->consumed, user_data->size - user_data->consumed, "M%d,%d", to_x, to_y); } static void line_to (hb_position_t to_x, hb_position_t to_y, user_data_t *user_data) { user_data->consumed += snprintf (user_data->str + user_data->consumed, user_data->size - user_data->consumed, "L%d,%d", to_x, to_y); } static void conic_to (hb_position_t control_x, hb_position_t control_y, hb_position_t to_x, hb_position_t to_y, user_data_t *user_data) { user_data->consumed += snprintf (user_data->str + user_data->consumed, user_data->size - user_data->consumed, "Q%d,%d %d,%d", control_x, control_y, to_x, to_y); } static void cubic_to (hb_position_t control1_x, hb_position_t control1_y, hb_position_t control2_x, hb_position_t control2_y, hb_position_t to_x, hb_position_t to_y, user_data_t *user_data) { user_data->consumed += snprintf (user_data->str + user_data->consumed, user_data->size - user_data->consumed, "C%d,%d %d,%d %d,%d", control1_x, control1_y, control2_x, control2_y, to_x, to_y); } static void close_path (user_data_t *user_data) { user_data->consumed += snprintf (user_data->str + user_data->consumed, user_data->size - user_data->consumed, "Z"); } static hb_ot_glyph_decompose_funcs_t *funcs; static void test_hb_ot_glyph_empty (void) { g_assert (!hb_ot_glyph_decompose (hb_font_get_empty (), 3, funcs, NULL)); } static void test_hb_ot_glyph_glyf (void) { hb_face_t *face = hb_test_open_font_file ("fonts/SourceSerifVariable-Roman-VVAR.abc.ttf"); hb_font_t *font = hb_font_create (face); hb_face_destroy (face); char str[1024] = {0}; user_data_t user_data = { .str = str, .size = sizeof (str), .consumed = 0 }; g_assert (!hb_ot_glyph_decompose (font, 4, funcs, &user_data)); g_assert (hb_ot_glyph_decompose (font, 3, funcs, &user_data)); char expected[] = "M275,442L275,442Q232,442 198,420Q164,397 145,353Q126,309 126,245L126,245" "Q126,182 147,139Q167,95 204,73Q240,50 287,50L287,50Q330,50 367,70" "Q404,90 427,128L427,128L451,116Q431,54 384,21Q336,-13 266,-13L266,-13Q198,-13 148,18" "Q97,48 70,104Q43,160 43,236L43,236Q43,314 76,371Q108,427 160,457Q212,487 272,487L272,487" "Q316,487 354,470Q392,453 417,424Q442,395 448,358L448,358Q441,321 403,321L403,321" "Q378,321 367,334Q355,347 350,366L350,366L325,454L371,417Q346,430 321,436Q296,442 275,442Z"; g_assert_cmpmem (str, user_data.consumed, expected, sizeof (expected) - 1); hb_variation_t var; var.tag = HB_TAG ('w','g','h','t'); var.value = 800; hb_font_set_variations (font, &var, 1); char str2[1024] = {0}; user_data_t user_data2 = { .str = str2, .size = sizeof (str2), .consumed = 0 }; g_assert (hb_ot_glyph_decompose (font, 3, funcs, &user_data2)); char expected2[] = "M323,448L323,448Q297,448 271,430Q244,412 227,371" "Q209,330 209,261L209,261Q209,204 226,166Q242,127 273,107Q303,86 344,86L344,86Q378,86 404,101" "Q430,115 451,137L451,137L488,103Q458,42 404,13Q350,-16 279,-16L279,-16Q211,-16 153,13Q95,41 60,99" "Q25,156 25,241L25,241Q25,323 62,382Q99,440 163,471Q226,501 303,501L303,501Q357,501 399,481" "Q440,460 464,426Q488,392 492,352L492,352Q475,297 420,297L420,297Q390,297 366,320" "Q342,342 339,401L339,401L333,469L411,427Q387,438 368,443Q348,448 323,448Z"; g_assert_cmpmem (str2, user_data2.consumed, expected2, sizeof (expected2) - 1); hb_font_destroy (font); } static void test_hb_ot_glyph_cff1 (void) { hb_face_t *face = hb_test_open_font_file ("fonts/cff1_seac.otf"); hb_font_t *font = hb_font_create (face); hb_face_destroy (face); char str[1024] = {0}; user_data_t user_data = { .str = str, .size = sizeof (str), .consumed = 0 }; g_assert (hb_ot_glyph_decompose (font, 3, funcs, &user_data)); char expected[] = "M203,367C227,440 248,512 268,588L272,588C293,512 314,440 338,367L369,267L172,267Z" "M3,0L88,0L151,200L390,200L452,0L541,0L319,656L225,656Z" "M300,653L342,694L201,861L143,806Z"; g_assert_cmpmem (str, user_data.consumed, expected, sizeof (expected) - 1); hb_font_destroy (font); } static void test_hb_ot_glyph_cff2 (void) { hb_face_t *face = hb_test_open_font_file ("fonts/AdobeVFPrototype.abc.otf"); hb_font_t *font = hb_font_create (face); hb_face_destroy (face); char str[1024] = {0}; user_data_t user_data = { .str = str, .size = sizeof (str), .consumed = 0 }; g_assert (hb_ot_glyph_decompose (font, 3, funcs, &user_data)); char expected[] = "M275,442C303,442 337,435 371,417L325,454L350,366" "C357,341 370,321 403,321C428,321 443,333 448,358" "C435,432 361,487 272,487C153,487 43,393 43,236" "C43,83 129,-13 266,-13C360,-13 424,33 451,116L427,128" "C396,78 345,50 287,50C193,50 126,119 126,245C126,373 188,442 275,442Z"; g_assert_cmpmem (str, user_data.consumed, expected, sizeof (expected) - 1); hb_variation_t var; var.tag = HB_TAG ('w','g','h','t'); var.value = 800; hb_font_set_variations (font, &var, 1); char str2[1024] = {0}; user_data_t user_data2 = { .str = str2, .size = sizeof (str2), .consumed = 0 }; g_assert (hb_ot_glyph_decompose (font, 3, funcs, &user_data2)); char expected2[] = "M323,448C356,448 380,441 411,427L333,469L339,401" "C343,322 379,297 420,297C458,297 480,314 492,352" "C486,433 412,501 303,501C148,501 25,406 25,241" "C25,70 143,-16 279,-16C374,-16 447,22 488,103L451,137" "C423,107 390,86 344,86C262,86 209,148 209,261C209,398 271,448 323,448Z"; g_assert_cmpmem (str2, user_data2.consumed, expected2, sizeof (expected2) - 1); hb_font_destroy (font); } int main (int argc, char **argv) { funcs = hb_ot_glyph_decompose_funcs_create (); hb_ot_glyph_decompose_funcs_set_move_to_func (funcs, (hb_ot_glyph_decompose_move_to_func_t) move_to); hb_ot_glyph_decompose_funcs_set_line_to_func (funcs, (hb_ot_glyph_decompose_line_to_func_t) line_to); hb_ot_glyph_decompose_funcs_set_conic_to_func (funcs, (hb_ot_glyph_decompose_conic_to_func_t) conic_to); hb_ot_glyph_decompose_funcs_set_cubic_to_func (funcs, (hb_ot_glyph_decompose_cubic_to_func_t) cubic_to); hb_ot_glyph_decompose_funcs_set_close_path_func (funcs, (hb_ot_glyph_decompose_close_path_func_t) close_path); hb_test_init (&argc, &argv); hb_test_add (test_hb_ot_glyph_empty); hb_test_add (test_hb_ot_glyph_glyf); hb_test_add (test_hb_ot_glyph_cff1); hb_test_add (test_hb_ot_glyph_cff2); unsigned result = hb_test_run (); hb_ot_glyph_decompose_funcs_destroy (funcs); return result; }