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
|
#include <assert.h>
#include <stdlib.h>
#include <wlr/interfaces/wlr_output.h>
#include <wlr/util/log.h>
#include "backend/noop.h"
#include "util/signal.h"
struct wlr_noop_backend *noop_backend_from_backend(
struct wlr_backend *wlr_backend) {
assert(wlr_backend_is_noop(wlr_backend));
return (struct wlr_noop_backend *)wlr_backend;
}
static bool backend_start(struct wlr_backend *wlr_backend) {
struct wlr_noop_backend *backend = noop_backend_from_backend(wlr_backend);
wlr_log(WLR_INFO, "Starting noop backend");
struct wlr_noop_output *output;
wl_list_for_each(output, &backend->outputs, link) {
wlr_output_update_enabled(&output->wlr_output, true);
wlr_signal_emit_safe(&backend->backend.events.new_output,
&output->wlr_output);
}
backend->started = true;
return true;
}
static void backend_destroy(struct wlr_backend *wlr_backend) {
struct wlr_noop_backend *backend = noop_backend_from_backend(wlr_backend);
if (!wlr_backend) {
return;
}
struct wlr_noop_output *output, *output_tmp;
wl_list_for_each_safe(output, output_tmp, &backend->outputs, link) {
wlr_output_destroy(&output->wlr_output);
}
wlr_signal_emit_safe(&wlr_backend->events.destroy, backend);
wl_list_remove(&backend->display_destroy.link);
free(backend);
}
static const struct wlr_backend_impl backend_impl = {
.start = backend_start,
.destroy = backend_destroy,
};
static void handle_display_destroy(struct wl_listener *listener, void *data) {
struct wlr_noop_backend *noop =
wl_container_of(listener, noop, display_destroy);
backend_destroy(&noop->backend);
}
struct wlr_backend *wlr_noop_backend_create(struct wl_display *display) {
wlr_log(WLR_INFO, "Creating noop backend");
struct wlr_noop_backend *backend =
calloc(1, sizeof(struct wlr_noop_backend));
if (!backend) {
wlr_log(WLR_ERROR, "Failed to allocate wlr_noop_backend");
return NULL;
}
wlr_backend_init(&backend->backend, &backend_impl);
backend->display = display;
wl_list_init(&backend->outputs);
backend->display_destroy.notify = handle_display_destroy;
wl_display_add_destroy_listener(display, &backend->display_destroy);
return &backend->backend;
}
bool wlr_backend_is_noop(struct wlr_backend *backend) {
return backend->impl == &backend_impl;
}
|
