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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/*
* Copyright © 2012 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.
*/
#include "cairo-test.h"
/* An error in xlib pattern transformation discovered by Albertas Vyšniauskas */
static cairo_pattern_t *
source(void)
{
cairo_surface_t *surface;
cairo_pattern_t *pattern;
cairo_matrix_t matrix;
cairo_t *cr;
int i;
surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 32, 32);
cr = cairo_create (surface);
cairo_surface_destroy (surface);
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_paint (cr);
cairo_set_source_rgb (cr, .5, .5, .5);
cairo_set_line_width (cr, 2);
for (i = -1; i <= 8; i++) {
cairo_move_to (cr, -34 + 8*i, 34);
cairo_rel_line_to (cr, 36, -36);
cairo_stroke (cr);
}
pattern = cairo_pattern_create_for_surface (cairo_get_target (cr));
cairo_destroy (cr);
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
cairo_matrix_init_translate(&matrix, 14.1, 0);
cairo_pattern_set_matrix(pattern, &matrix);
return pattern;
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_pattern_t *pattern;
int i;
cairo_paint (cr);
pattern = source ();
cairo_set_source (cr, pattern);
cairo_pattern_destroy (pattern);
for (i = 0; i < 8; i++) {
cairo_rectangle (cr, 3.5*i, 32*i, 256, 32);
cairo_fill (cr);
}
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (bug_51910,
"A bug in the xlib pattern transformation",
" paint", /* keywords */
NULL, /* requirements */
256, 256,
NULL, draw)
|
