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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/*
* Copyright © 2015 Samsung Electronics Co., Ltd
*
* 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 (including the
* next paragraph) 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 "config.h"
#include <stdint.h>
#include <stdio.h>
#include "weston-test-client-helper.h"
char *server_parameters="--use-pixman --width=320 --height=240";
static void
draw_stuff(pixman_image_t *image)
{
int w, h;
int stride; /* bytes */
int x, y;
uint32_t r, g, b;
uint32_t *pixels;
uint32_t *pixel;
pixman_format_code_t fmt;
fmt = pixman_image_get_format(image);
w = pixman_image_get_width(image);
h = pixman_image_get_height(image);
stride = pixman_image_get_stride(image);
pixels = pixman_image_get_data(image);
assert(PIXMAN_FORMAT_BPP(fmt) == 32);
for (x = 0; x < w; x++)
for (y = 0; y < h; y++) {
b = x;
g = x + y;
r = y;
pixel = pixels + (y * stride / 4) + x;
*pixel = (255U << 24) | (r << 16) | (g << 8) | b;
}
}
TEST(internal_screenshot)
{
struct buffer *buf;
struct client *client;
struct wl_surface *surface;
struct buffer *screenshot = NULL;
pixman_image_t *reference_good = NULL;
pixman_image_t *reference_bad = NULL;
pixman_image_t *diffimg;
struct rectangle clip;
const char *fname;
bool match = false;
bool dump_all_images = true;
/* Create the client */
testlog("Creating client for test\n");
client = create_client_and_test_surface(100, 100, 100, 100);
assert(client);
surface = client->surface->wl_surface;
/*
* We are racing our screenshooting against weston-desktop-shell
* setting the cursor. If w-d-s wins, our screenshot will have a cursor
* shown, which makes the image comparison fail. Our window and the
* default pointer position are accidentally causing an overlap that
* intersects our test clip rectangle.
*
* w-d-s wins very rarely though, so the race is easy to miss. You can
* make it happen by putting a delay before the call to
* create_client_and_test_surface().
*
* The weston_test_move_pointer() below makes the race irrelevant, as
* the cursor won't overlap with anything we care about.
*/
/* Move the pointer away from the screenshot area. */
weston_test_move_pointer(client->test->weston_test, 0, 1, 0, 0, 0);
buf = create_shm_buffer_a8r8g8b8(client, 100, 100);
draw_stuff(buf->image);
wl_surface_attach(surface, buf->proxy, 0, 0);
wl_surface_damage(surface, 0, 0, 100, 100);
wl_surface_commit(surface);
/* Take a snapshot. Result will be in screenshot->wl_buffer. */
testlog("Taking a screenshot\n");
screenshot = capture_screenshot_of_output(client);
assert(screenshot);
/* Load good reference image */
fname = screenshot_reference_filename("internal-screenshot-good", 0);
testlog("Loading good reference image %s\n", fname);
reference_good = load_image_from_png(fname);
assert(reference_good);
/* Load bad reference image */
fname = screenshot_reference_filename("internal-screenshot-bad", 0);
testlog("Loading bad reference image %s\n", fname);
reference_bad = load_image_from_png(fname);
assert(reference_bad);
/* Test check_images_match() without a clip.
* We expect this to fail since we use a bad reference image
*/
match = check_images_match(screenshot->image, reference_bad, NULL);
testlog("Screenshot %s reference image\n", match? "equal to" : "different from");
assert(!match);
pixman_image_unref(reference_bad);
/* Test check_images_match() with clip.
* Alpha-blending and other effects can cause irrelevant discrepancies, so look only
* at a small portion of the solid-colored background
*/
clip.x = 100;
clip.y = 100;
clip.width = 100;
clip.height = 100;
testlog("Clip: %d,%d %d x %d\n", clip.x, clip.y, clip.width, clip.height);
match = check_images_match(screenshot->image, reference_good, &clip);
testlog("Screenshot %s reference image in clipped area\n", match? "matches" : "doesn't match");
if (!match) {
diffimg = visualize_image_difference(screenshot->image, reference_good, &clip);
fname = screenshot_output_filename("internal-screenshot-error", 0);
write_image_as_png(diffimg, fname);
pixman_image_unref(diffimg);
}
pixman_image_unref(reference_good);
/* Test dumping of non-matching images */
if (!match || dump_all_images) {
fname = screenshot_output_filename("internal-screenshot", 0);
write_image_as_png(screenshot->image, fname);
}
buffer_destroy(screenshot);
testlog("Test complete\n");
assert(match);
}
|
