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[ot-glyph] Add tests for hb_ot_glyph_decompose

This commit is contained in:
Ebrahim Byagowi 2020-01-11 00:00:51 +03:30
parent 06a1fcb3b4
commit 42f4f1ea50
4 changed files with 208 additions and 11 deletions
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2
src/hb-ot-glyf-table.hh
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@ -1046,7 +1046,7 @@ struct glyf
get_path (hb_font_t *font, hb_codepoint_t gid,
hb_ot_glyph_decompose_funcs_t *funcs, void *user_data) const
{
/* TODO: Make it work alloc free and without all_points vector */
/* TODO: Make it alloc free and work without all_points vector */
contour_point_vector_t all_points;
if (unlikely (!get_points (font, gid, all_points))) return false;
hb_array_t<contour_point_t> points = all_points.sub_array (0, all_points.length - 4);

1
test/api/Makefile.am
View File

@ -38,6 +38,7 @@ TEST_PROGS = \
test-map \
test-object \
test-ot-face \
test-ot-glyph \
test-ot-glyphname \
test-set \
test-shape \

26
test/api/test-ot-face.c
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@ -31,22 +31,28 @@
/* Unit tests for hb-ot-*.h */
static void
move_to (hb_position_t to_x, hb_position_t to_y, void *user_data) {}
#if defined(__GNUC__) && (__GNUC__ >= 4) || (__clang__)
#define HB_UNUSED __attribute__((unused))
#else
#define HB_UNUSED
#endif
static void
line_to (hb_position_t to_x, hb_position_t to_y, void *user_data) {}
move_to (hb_position_t to_x HB_UNUSED, hb_position_t to_y HB_UNUSED, void *user_data HB_UNUSED) {}
static void
conic_to (hb_position_t control_x, hb_position_t control_y,
hb_position_t to_x, hb_position_t to_y,
void *user_data) {}
line_to (hb_position_t to_x HB_UNUSED, hb_position_t to_y HB_UNUSED, void *user_data HB_UNUSED) {}
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,
void *user_data) {}
conic_to (hb_position_t control_x HB_UNUSED, hb_position_t control_y HB_UNUSED,
hb_position_t to_x HB_UNUSED, hb_position_t to_y HB_UNUSED,
void *user_data HB_UNUSED) {}
static void
cubic_to (hb_position_t control1_x HB_UNUSED, hb_position_t control1_y HB_UNUSED,
hb_position_t control2_x HB_UNUSED, hb_position_t control2_y HB_UNUSED,
hb_position_t to_x HB_UNUSED, hb_position_t to_y HB_UNUSED,
void *user_data HB_UNUSED) {}
static void
test_face (hb_face_t *face,

190
test/api/test-ot-glyph.c Normal file
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@ -0,0 +1,190 @@
/*
* 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 <hb-ot.h>
static void
move_to (hb_position_t to_x, hb_position_t to_y, void *user_data)
{
char *str = (char *) user_data;
sprintf (str+strlen (str), "M%d,%d", to_x, to_y);
}
static void
line_to (hb_position_t to_x, hb_position_t to_y, void *user_data)
{
char *str = (char *) user_data;
sprintf (str+strlen (str), "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,
void *user_data)
{
char *str = (char *) user_data;
sprintf (str+strlen (str), "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,
void *user_data)
{
char *str = (char *) user_data;
sprintf (str+strlen (str), "C%d,%d %d,%d %d,%d",
control1_x, control1_y,
control2_x, control2_y,
to_x, to_y);
}
static void
test_hb_ot_glyph_empty (void)
{
hb_ot_glyph_decompose_funcs_t funcs;
funcs.move_to = (hb_ot_glyph_decompose_move_to_func_t) move_to;
funcs.line_to = (hb_ot_glyph_decompose_line_to_func_t) line_to;
funcs.conic_to = (hb_ot_glyph_decompose_conic_to_func_t) conic_to;
funcs.cubic_to = (hb_ot_glyph_decompose_cubic_to_func_t) cubic_to;
g_assert (!hb_ot_glyph_decompose (hb_font_get_empty (), 3, &funcs, NULL));
}
static void
test_hb_ot_glyph_glyf (void)
{
hb_ot_glyph_decompose_funcs_t funcs;
funcs.move_to = (hb_ot_glyph_decompose_move_to_func_t) move_to;
funcs.line_to = (hb_ot_glyph_decompose_line_to_func_t) line_to;
funcs.conic_to = (hb_ot_glyph_decompose_conic_to_func_t) conic_to;
funcs.cubic_to = (hb_ot_glyph_decompose_cubic_to_func_t) cubic_to;
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};
g_assert (!hb_ot_glyph_decompose (font, 4, &funcs, str));
g_assert (hb_ot_glyph_decompose (font, 3, &funcs, str));
char expected[] = "M275,442L275,442Q232,442 198,420Q164,397 145,353Q126,309 126,245L126,245"
"Q126,182 147,139Q167,95 204,73Q240,50 287,50L287,50Q330,50 367,70Q404,90 427,128L427,128L451,116"
"Q431,54 384,21Q336,-13 266,-13L266,-13Q198,-13 148,18Q97,48 70,104Q43,160 43,236L43,236Q43,314 76,371"
"Q108,427 160,457Q212,487 272,487L272,487Q316,487 354,470Q392,453 417,424Q442,395 448,358"
"L448,358Q441,321 403,321L403,321Q378,321 367,334Q355,347 350,366L350,366L325,454L371,417"
"Q346,430 321,436Q296,442 275,442";
g_assert_cmpmem (str, strlen (str), 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};
g_assert (hb_ot_glyph_decompose (font, 3, &funcs, str2));
char expected2[] = "M323,448L323,448Q297,448 271,430Q244,412 227,371Q209,330 209,261L209,261Q209,204 226,166"
"Q242,127 273,107Q303,86 344,86L344,86Q378,86 404,101Q430,115 451,137L451,137L488,103"
"Q458,42 404,13Q350,-16 279,-16L279,-16Q211,-16 153,13Q95,41 60,99Q25,156 25,241L25,241"
"Q25,323 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"
"Q342,342 339,401L339,401L333,469L411,427Q387,438 368,443Q348,448 323,448";
g_assert_cmpmem (str2, strlen (str2), expected2, sizeof (expected2) - 1);
hb_font_destroy (font);
}
static void
test_hb_ot_glyph_cff1 (void)
{
hb_ot_glyph_decompose_funcs_t funcs;
funcs.move_to = (hb_ot_glyph_decompose_move_to_func_t) move_to;
funcs.line_to = (hb_ot_glyph_decompose_line_to_func_t) line_to;
funcs.conic_to = (hb_ot_glyph_decompose_conic_to_func_t) conic_to;
funcs.cubic_to = (hb_ot_glyph_decompose_cubic_to_func_t) cubic_to;
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};
g_assert (hb_ot_glyph_decompose (font, 3, &funcs, str));
char expected[] = "M203,367C227,440 248,512 268,588L272,588C293,512 314,440 338,367"
"L369,267L172,267M3,0L88,0L151,200L390,200L452,0L541,0L319,656L225,656"
"M300,653L342,694L201,861L143,806";
g_assert_cmpmem (str, strlen (str), expected, sizeof (expected) - 1);
hb_font_destroy (font);
}
static void
test_hb_ot_glyph_cff2 (void)
{
hb_ot_glyph_decompose_funcs_t funcs;
funcs.move_to = (hb_ot_glyph_decompose_move_to_func_t) move_to;
funcs.line_to = (hb_ot_glyph_decompose_line_to_func_t) line_to;
funcs.conic_to = (hb_ot_glyph_decompose_conic_to_func_t) conic_to;
funcs.cubic_to = (hb_ot_glyph_decompose_cubic_to_func_t) cubic_to;
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};
g_assert (hb_ot_glyph_decompose (font, 3, &funcs, str));
char expected[] = "M275,442C303,442 337,435 371,417L325,454L350,366C357,341 370,321 403,321"
"C428,321 443,333 448,358C435,432 361,487 272,487C153,487 43,393 43,236"
"C43,83 129,-13 266,-13C360,-13 424,33 451,116L427,128C396,78 345,50 287,50"
"C193,50 126,119 126,245C126,373 188,442 275,442";
g_assert_cmpmem (str, strlen (str), 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};
g_assert (hb_ot_glyph_decompose (font, 3, &funcs, str2));
char expected2[] = "M323,448C356,448 380,441 411,427L333,469L339,401C343,322 379,297 420,297"
"C458,297 480,314 492,352C486,433 412,501 303,501C148,501 25,406 25,241"
"C25,70 143,-16 279,-16C374,-16 447,22 488,103L451,137C423,107 390,86 344,86"
"C262,86 209,148 209,261C209,398 271,448 323,448";
g_assert_cmpmem (str2, strlen (str2), expected2, sizeof (expected2) - 1);
hb_font_destroy (font);
}
int
main (int argc, char **argv)
{
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);
return hb_test_run ();
}