2 * Copyright © 2011 Intel Corporation
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: Chris Wilson <chris@chris-wilson.co.uk>
30 * https://bugzilla.mozilla.org/show_bug.cgi?id=668921
32 * The issue is that we failed to tighten the initial approximated bounds
33 * after tessellating the path.
36 #include "cairo-test.h"
41 triangle (cairo_t *cr, double x, double y, double h)
43 cairo_move_to (cr, x, y);
44 cairo_line_to (cr, x+h/2, y+h);
45 cairo_line_to (cr, x+h, y);
46 cairo_close_path (cr);
49 static cairo_test_status_t
50 draw (cairo_t *cr, int width, int height)
52 cairo_set_source_rgb (cr, 1, 0, 1);
55 /* Set an unbounded operator so that we can see how accurate the bounded
58 cairo_set_operator (cr, CAIRO_OPERATOR_IN);
59 cairo_set_source_rgb (cr, 1, 1, 1);
61 /* Wind several triangles together that reduce to just one */
62 cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
63 triangle (cr, 0, 0, SIZE);
64 triangle (cr, 0, 0, SIZE);
65 triangle (cr, SIZE/2-20, SIZE/2 - 20, 40);
68 return CAIRO_TEST_SUCCESS;
71 CAIRO_TEST (big_little_triangle,
72 "Tests that we tighten the bounds after tessellation.",
73 "fill", /* keywords */
74 NULL, /* requirements */