diff options
| author | Simon Ser <contact@emersion.fr> | 2019-11-16 22:15:33 +0100 |
|---|---|---|
| committer | Simon Ser <contact@emersion.fr> | 2019-11-17 00:12:59 +0100 |
| commit | 6c649bab537f75ebf4def87be2a59c860bcc6859 (patch) | |
| tree | f1ef6d6c2896ac3f03f97a2b0be4003f4b214b67 | |
| parent | cde544de81b3da6368c3f88fe6d08df0b4bc198e (diff) | |
output: add wlr_output_event_present.commit_seq
This is set to the value of wlr_output.commit_seq when the frame has
been submitted. This allows tracking presentation with more then 1 full
frame of latency.
References: https://github.com/swaywm/wlroots/issues/1917
| -rw-r--r-- | backend/drm/drm.c | 3 | ||||
| -rw-r--r-- | include/wlr/types/wlr_output.h | 3 | ||||
| -rw-r--r-- | types/wlr_output.c | 1 |
3 files changed, 7 insertions, 0 deletions
diff --git a/backend/drm/drm.c b/backend/drm/drm.c index 9bcafeb6..fc6834ff 100644 --- a/backend/drm/drm.c +++ b/backend/drm/drm.c @@ -1497,6 +1497,9 @@ static void page_flip_handler(int fd, unsigned seq, .tv_nsec = tv_usec * 1000, }; struct wlr_output_event_present present_event = { + /* The DRM backend guarantees that the presentation event will be for + * the last submitted frame. */ + .commit_seq = conn->output.commit_seq, .when = &present_time, .seq = seq, .refresh = mhz_to_nsec(conn->output.refresh), diff --git a/include/wlr/types/wlr_output.h b/include/wlr/types/wlr_output.h index 97aa885e..e9aab373 100644 --- a/include/wlr/types/wlr_output.h +++ b/include/wlr/types/wlr_output.h @@ -173,6 +173,9 @@ enum wlr_output_present_flag { struct wlr_output_event_present { struct wlr_output *output; + // Frame submission for which this presentation event is for (see + // wlr_output.commit_seq). + uint32_t commit_seq; // Time when the content update turned into light the first time. struct timespec *when; // Vertical retrace counter. Zero if unavailable. diff --git a/types/wlr_output.c b/types/wlr_output.c index 6555296c..793907dd 100644 --- a/types/wlr_output.c +++ b/types/wlr_output.c @@ -569,6 +569,7 @@ void wlr_output_send_present(struct wlr_output *output, struct wlr_output_event_present _event = {0}; if (event == NULL) { event = &_event; + event->commit_seq = output->commit_seq; } event->output = output; |