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>
27 #include "cairo-test.h"
29 /* The goal is exercise a bug that existed in the xlib backend, where
30 * it assumed the rectangles generated by rectangular tessallator had
31 * any sorting guarantees.
37 static cairo_surface_t *
38 create_source (cairo_surface_t *target)
40 cairo_surface_t *surface;
43 surface = cairo_surface_create_similar (target,
46 cr = cairo_create (surface);
47 cairo_surface_destroy (surface);
49 cairo_set_source_rgb (cr, 1, 1, 1);
52 surface = cairo_surface_reference (cairo_get_target (cr));
58 static cairo_test_status_t
59 draw (cairo_t *cr, int width, int height)
61 cairo_surface_t *white;
64 /* black background */
65 cairo_set_source_rgb (cr, 0, 0, 0);
68 /* white rectangles */
69 white = create_source (cairo_get_target (cr));
70 cairo_set_source_surface (cr, white, 0, 0);
71 cairo_surface_destroy (white);
73 /* blit a set of rectangles that the rectangular tessellator
74 * will not emit sorted. */
75 for (x = 0; x < WIDTH - 10; x += 15)
76 cairo_rectangle (cr, x, x, 10, HEIGHT - 2*x);
79 return CAIRO_TEST_SUCCESS;
82 CAIRO_TEST (copy_disjoint,
83 "Tests copying unsorted rectangles.",
84 "fill", /* keywords */
85 NULL, /* requirements */