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tools/replay: do not replay key repeat events

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The kernel emulates key events on its own anyway, replaying key events with
libinput replay as well just duplicates the events. Turning kernel
repeat off is not an option, it  makes the device look different (EV_REP
changes). So let's just not replay those events.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2021-05-17 16:09:35 +10:00
parent 5dc000323d
commit 4c82cbd4d0
2 changed files with 29 additions and 8 deletions
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3
tools/libinput-replay.man
View file

@ -21,6 +21,9 @@ This tool replays events from a recording through the the kernel and is
independent of libinput. In other words, updating or otherwise changing
libinput will not alter the output from this tool. libinput itself does not
need to be in use to replay events.
.PP
This tool does not replay kernel-emulated key repeat events (events of type
\fIEV_KEY\fR with a value of 2).
.SH LIBINPUT
.PP
Part of the

34
tools/libinput-replay.py
View file

@ -168,6 +168,27 @@ def print_events(devnode, indent, evs):
)
def collect_events(frame):
evs = []
events_skipped = False
for (sec, usec, evtype, evcode, value) in frame:
if evtype == libevdev.EV_KEY.value and value == 2: # key repeat
events_skipped = True
continue
e = libevdev.InputEvent(
libevdev.evbit(evtype, evcode), value=value, sec=sec, usec=usec
)
evs.append(e)
# If we skipped some events and now all we have left is the
# SYN_REPORTs, we drop the SYN_REPORTs as well.
if events_skipped and all(e for e in evs if e.matches(libevdev.EV_SYN.SYN_REPORT)):
return []
else:
return evs
def replay(device, verbose):
events = fetch(device, "events")
if events is None:
@ -191,19 +212,16 @@ def replay(device, verbose):
except YamlException:
continue
(sec, usec, evtype, evcode, value) = evdev[0]
evtime = sec + usec / 1e6 + offset
evs = collect_events(evdev)
if not evs:
continue
evtime = evs[0].sec + evs[0].usec / 1e6 + offset
now = time.time()
if evtime - now > 150 / 1e6: # 150 µs error margin
time.sleep(evtime - now - 150 / 1e6)
evs = [
libevdev.InputEvent(
libevdev.evbit(e[2], e[3]), value=e[4], sec=e[0], usec=e[1]
)
for e in evdev
]
uinput.send_events(evs)
if verbose:
print_events(uinput.devnode, device["__index"], evs)