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
|
/*
* Copyright © 2005 Mozilla Corporation
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Mozilla Corporation not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Mozilla Corporation makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Vladimir Vukicevic <vladimir@pobox.com>
*/
#include <math.h>
#include "cairo-test.h"
#include <stdio.h>
#define SIZE 12
static cairo_test_draw_function_t draw;
cairo_test_t test = {
"source-clip-scale",
"Test that a source surface is not affected by a clip when scaling",
SIZE * 2, SIZE,
draw
};
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_surface_t *source;
cairo_t *cr2;
source = cairo_surface_create_similar (cairo_get_group_target (cr),
CAIRO_CONTENT_COLOR_ALPHA,
SIZE, SIZE);
cr2 = cairo_create (source);
/* Fill the source surface with green */
cairo_set_source_rgb (cr2, 0, 1, 0);
cairo_paint (cr2);
/* Draw a blue square in the middle of the source with clipping.
* Note that we are only clipping within a save/restore block but
* the buggy behavior demonstrates that the clip remains present
* on the surface. */
cairo_save (cr2);
cairo_rectangle (cr2,
SIZE / 4, SIZE / 4,
SIZE / 2, SIZE / 2);
cairo_clip (cr2);
cairo_set_source_rgb (cr2, 0, 0, 1);
cairo_paint (cr2);
cairo_restore (cr2);
/* Fill the destination surface with solid red (should not appear
* in final result) */
cairo_set_source_rgb (cr, 1, 0, 0);
cairo_paint (cr);
/* Now draw the source surface onto the destination with scaling. */
cairo_scale (cr, 2.0, 1.0);
cairo_set_source_surface (cr, source, 0, 0);
cairo_paint (cr);
cairo_destroy (cr2);
cairo_surface_destroy (source);
return CAIRO_TEST_SUCCESS;
}
int
main (void)
{
return cairo_test (&test);
}
|
