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
|
#define _POSIX_C_SOURCE 200809L
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <unistd.h>
#include <wayland-client-protocol.h>
#include <wayland-client.h>
#include "wlr-output-power-management-unstable-v1-client-protocol.h"
struct output {
struct wl_output *wl_output;
struct zwlr_output_power_v1 *output_power;
struct wl_list link;
};
static struct wl_list outputs;
static struct zwlr_output_power_manager_v1 *output_power_manager = NULL;
static void output_power_handle_mode(void *data,
struct zwlr_output_power_v1 *output_power,
enum zwlr_output_power_v1_mode mode) {
struct output *output = data;
switch (mode) {
case ZWLR_OUTPUT_POWER_V1_MODE_OFF:
printf("Output %p disabled\n", output);
break;
case ZWLR_OUTPUT_POWER_V1_MODE_ON:
printf("Output %p enabled\n", output);
break;
}
}
static void output_power_handle_failed(void *data,
struct zwlr_output_power_v1 *output_power) {
fprintf(stderr, "failed to set output power mode\n");
exit(EXIT_FAILURE);
}
static const struct zwlr_output_power_v1_listener output_power_listener = {
.mode = output_power_handle_mode,
.failed = output_power_handle_failed,
};
static void registry_handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) {
if (strcmp(interface, wl_output_interface.name) == 0) {
struct output *output = calloc(1, sizeof(struct output));
output->wl_output = wl_registry_bind(registry, name,
&wl_output_interface, 1);
wl_list_insert(&outputs, &output->link);
} else if (strcmp(interface,
zwlr_output_power_manager_v1_interface.name) == 0) {
output_power_manager = wl_registry_bind(registry, name,
&zwlr_output_power_manager_v1_interface, 1);
}
}
static void registry_handle_global_remove(void *data,
struct wl_registry *registry, uint32_t name) {
// Who cares?
}
static const struct wl_registry_listener registry_listener = {
.global = registry_handle_global,
.global_remove = registry_handle_global_remove,
};
static const char usage[] = "usage: output-power-management [options...]\n"
" -h: show this help message\n"
" -e: turn outputs on\n"
" -d: turn outputs off\n";
int main(int argc, char *argv[]) {
wl_list_init(&outputs);
int opt;
enum zwlr_output_power_v1_mode mode =
ZWLR_OUTPUT_POWER_V1_MODE_ON;
while ((opt = getopt(argc, argv, "edh")) != -1) {
switch (opt) {
case 'e':
mode = ZWLR_OUTPUT_POWER_V1_MODE_ON;
break;
case 'd':
mode = ZWLR_OUTPUT_POWER_V1_MODE_OFF;
break;
case 'h':
default:
fprintf(stderr, usage);
return opt == 'h' ? EXIT_SUCCESS : EXIT_FAILURE;
}
}
struct wl_display *display = wl_display_connect(NULL);
if (display == NULL) {
fprintf(stderr, "failed to create display\n");
return -1;
}
struct wl_registry *registry = wl_display_get_registry(display);
wl_registry_add_listener(registry, ®istry_listener, NULL);
wl_display_dispatch(display);
wl_display_roundtrip(display);
if (output_power_manager == NULL) {
fprintf(stderr,
"compositor doesn't support wlr-output-power-managment-unstable-v1\n");
return EXIT_FAILURE;
}
struct output *output;
wl_list_for_each(output, &outputs, link) {
output->output_power = zwlr_output_power_manager_v1_get_output_power(
output_power_manager, output->wl_output);
zwlr_output_power_v1_add_listener(output->output_power,
&output_power_listener, output);
}
wl_display_roundtrip(display);
wl_list_for_each(output, &outputs, link) {
zwlr_output_power_v1_set_mode(output->output_power,
mode);
}
while (wl_display_dispatch(display) != -1) {
// nothing to see here, please move along
}
return EXIT_SUCCESS;
}
|
