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
|
/*
* Copyright © 2008 Kristian Høgsberg
*
* 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 the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS 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.
*/
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <glib.h>
#include "wayland-client.h"
#include "wayland-glib.h"
/* The screenshooter is a good example of a custom object exposed by
* the compositor and serves as a test bed for implementing client
* side marshalling outside libwayland.so */
static const char socket_name[] = "\0wayland";
struct screenshooter {
uint32_t id;
struct wl_display *display;
};
static struct screenshooter *
screenshooter_create(struct wl_display *display)
{
struct screenshooter *screenshooter;
uint32_t id;
id = wl_display_get_object_id(display, "screenshooter", 1);
if (id == 0) {
fprintf(stderr, "server doesn't support screenshooter interface\n");
return NULL;
}
screenshooter = malloc(sizeof screenshooter);
if (screenshooter == NULL)
return NULL;
screenshooter->id = id;
screenshooter->display = display;
return screenshooter;
}
#define SCREENSHOOTER_SHOOT 0
static void
screenshooter_shoot(struct screenshooter *screenshooter)
{
uint32_t request[2];
request[0] = screenshooter->id;
request[1] = SCREENSHOOTER_SHOOT | ((sizeof request) << 16);
wl_display_write(screenshooter->display,
request, sizeof request);
}
int main(int argc, char *argv[])
{
struct wl_display *display;
GMainLoop *loop;
GSource *source;
struct screenshooter *s;
display = wl_display_create(socket_name, sizeof socket_name);
if (display == NULL) {
fprintf(stderr, "failed to create display: %m\n");
return -1;
}
wl_display_iterate(display, WL_DISPLAY_READABLE);
loop = g_main_loop_new(NULL, FALSE);
source = wl_glib_source_new(display);
g_source_attach(source, NULL);
s = screenshooter_create(display);
if (s == NULL)
exit(-1);
screenshooter_shoot(s);
g_idle_add((GSourceFunc) g_main_loop_quit, loop);
g_main_loop_run(loop);
return 0;
}
|
