2 * Copyright © 2005 Red Hat, Inc.
3 * Copyright © 2009 Chris Wilson
5 * Permission to use, copy, modify, distribute, and sell this software
6 * and its documentation for any purpose is hereby granted without
7 * fee, provided that the above copyright notice appear in all copies
8 * and that both that copyright notice and this permission notice
9 * appear in supporting documentation, and that the name of
10 * Red Hat, Inc. not be used in advertising or publicity pertaining to
11 * distribution of the software without specific, written prior
12 * permission. Red Hat, Inc. makes no representations about the
13 * suitability of this software for any purpose. It is provided "as
14 * is" without express or implied warranty.
16 * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
17 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
19 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
20 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
21 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
22 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 * Author: Carl D. Worth <cworth@cworth.org>
25 * Chris Wilson <chris@chris-wilson.co.uk>
28 #include "cairo-test.h"
32 /* Another attempt at avoiding unnecessary splines was made, where
33 * a curve-to that ended on the same point as it began were discarded.
34 * The same bug was made to rel-curve-to as well, hence this test.
36 static cairo_test_status_t
37 draw (cairo_t *cr, int width, int height)
39 cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
42 cairo_set_line_width (cr, 1.0);
43 cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
44 cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL);
45 cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */
47 /* entirely degenerate */
48 cairo_move_to (cr, 2.5, 2.5);
49 cairo_rel_curve_to (cr,
56 cairo_move_to (cr, 5.5, 2.5);
57 cairo_rel_curve_to (cr,
64 cairo_move_to (cr, 5.5, 2.5);
65 cairo_rel_curve_to (cr,
71 cairo_translate (cr, 15, 0);
73 /* horizontal/vertical */
74 cairo_move_to (cr, 5.5, 0.5);
75 cairo_rel_curve_to (cr,
80 cairo_translate (cr, 10, 0);
82 /* vertical/horizontal */
83 cairo_move_to (cr, 5.5, 0.0);
84 cairo_rel_curve_to (cr,
90 return CAIRO_TEST_SUCCESS;
93 CAIRO_TEST (degenerate_rel_curve_to,
94 "Test optimization treating degenerate rel-curve-to as line-to",
95 "path", /* keywords */
96 NULL, /* requirements */