1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/*
* Copyright © 2010 Mozilla Corporation
* Copyright © 2010 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Author: Chris Wilson <chris@chris-wilson.co.uk>
*/
#include "cairo-test.h"
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_surface_t *mask;
cairo_t *cr2;
cairo_set_source_rgb (cr, 0, 1, 0);
cairo_paint (cr);
/* clip twice, note that the intersection is smaller then the extents */
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_rectangle (cr, 10, 10, 80, 80);
cairo_rectangle (cr, 20, 20, 60, 60);
cairo_clip (cr);
cairo_rectangle (cr, 0, 40, 40, 30);
cairo_clip (cr);
/* and exercise the bug found by Jeff Muizelaar */
mask = cairo_surface_create_similar (cairo_get_target (cr),
CAIRO_CONTENT_ALPHA,
width-20, height-20);
cr2 = cairo_create (mask);
cairo_surface_destroy (mask);
cairo_set_source_rgba (cr2, 1, 1, 1, 1);
cairo_paint (cr2);
cairo_set_source_rgb (cr, 1, 0, 0);
cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0);
cairo_destroy (cr2);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (clip_twice_rectangle,
"Tests clipping twice using rectangles",
"clip", /* keywords */
NULL, /* requirements */
100, 100,
NULL, draw)
|
