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output: fix performance issues with wlr_output_schedule_frame

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This commit is contained in:
emersion 2018-01-30 14:45:02 +01:00
parent a7cba7d83f
commit 704130cc11
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GPG key ID: 0FDE7BE0E88F5E48
3 changed files with 27 additions and 5 deletions
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8
backend/wayland/output.c
View file

@ -21,9 +21,10 @@ static void surface_frame_callback(void *data, struct wl_callback *cb,
uint32_t time) {
struct wlr_wl_backend_output *output = data;
assert(output);
wlr_output_send_frame(&output->wlr_output);
wl_callback_destroy(cb);
output->frame_callback = NULL;
wlr_output_send_frame(&output->wlr_output);
}
static struct wl_callback_listener frame_listener = {
@ -50,6 +51,11 @@ static bool wlr_wl_output_swap_buffers(struct wlr_output *wlr_output) {
struct wlr_wl_backend_output *output =
(struct wlr_wl_backend_output *)wlr_output;
if (output->frame_callback != NULL) {
wlr_log(L_ERROR, "Skipping buffer swap");
return false;
}
output->frame_callback = wl_surface_frame(output->surface);
wl_callback_add_listener(output->frame_callback, &frame_listener, output);

2
include/wlr/types/wlr_output.h
View file

@ -77,6 +77,8 @@ struct wlr_output {
struct wl_signal destroy;
} events;
struct wl_event_source *idle_frame;
struct wlr_surface *fullscreen_surface;
struct wl_listener fullscreen_surface_commit;
struct wl_listener fullscreen_surface_destroy;

18
types/wlr_output.c
View file

@ -273,6 +273,8 @@ void wlr_output_init(struct wlr_output *output, struct wlr_backend *backend,
output->display_destroy.notify = handle_display_destroy;
wl_display_add_destroy_listener(display, &output->display_destroy);
output->frame_pending = true;
}
void wlr_output_destroy(struct wlr_output *output) {
@ -466,6 +468,15 @@ surface_damage_finish:
bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
pixman_region32_t *damage) {
if (output->frame_pending) {
wlr_log(L_ERROR, "Tried to swap buffers when a frame is pending");
return false;
}
if (output->idle_frame != NULL) {
wl_event_source_remove(output->idle_frame);
output->idle_frame = NULL;
}
wl_signal_emit(&output->events.swap_buffers, damage);
int width, height;
@ -522,18 +533,21 @@ void wlr_output_send_frame(struct wlr_output *output) {
static void schedule_frame_handle_idle_timer(void *data) {
struct wlr_output *output = data;
output->idle_frame = NULL;
if (!output->frame_pending) {
wlr_output_send_frame(output);
}
}
void wlr_output_schedule_frame(struct wlr_output *output) {
if (output->frame_pending) {
if (output->frame_pending || output->idle_frame != NULL) {
return;
}
// TODO: ask the backend to send a frame event when appropriate instead
struct wl_event_loop *ev = wl_display_get_event_loop(output->display);
output->idle_frame =
wl_event_loop_add_idle(ev, schedule_frame_handle_idle_timer, output);
output->frame_pending = true;
}
void wlr_output_set_gamma(struct wlr_output *output,