2 * Copyright © 2006 M Joonas Pihlaja
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * Author: M Joonas Pihlaja <jpihlaja@cc.helsinki.fi>
29 * 2006-12-05 M Joonas Pihlaja <jpihlaja@cc.helsinki.fi>
31 * There's currently a regression bug in the tessellation code from
32 * switching to the "new tessellator". The bug is caused by
33 * confusion in the comparator used to order events when there are
37 #include "cairo-test.h"
39 /* Derived from zrusin's "another" polygon in the performance suite. */
40 static cairo_test_status_t
41 draw (cairo_t *cr, int width, int height)
43 cairo_set_source_rgb (cr, 1, 0, 0);
45 /* The polygon uses (43,103) as its "base point". Closed
46 * subpaths are simulated by going from the base point to the
47 * subpath's first point, doing the subpath, and returning to the
48 * base point. The moving to and from the base point causes
49 * degenerate edges which shouldn't result in anything visible. */
50 cairo_move_to (cr, 43, 103);
53 cairo_line_to (cr, 91, 101);
54 cairo_line_to (cr, 0, 112);
55 cairo_line_to (cr, 60, 0);
56 cairo_line_to (cr, 91, 101);
58 cairo_line_to (cr, 43, 103);
61 cairo_line_to (cr, 176, 110);
62 cairo_line_to (cr, 116, 100);
63 cairo_line_to (cr, 176, 0);
64 cairo_line_to (cr, 176, 110);
66 cairo_close_path (cr);
69 return CAIRO_TEST_SUCCESS;
72 CAIRO_TEST (fill_degenerate_sort_order,
73 "Tests the tessellator's event comparator with degenerate input",
74 "degenerate, fill", /* keywords */
75 NULL, /* requirements */