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#!/usr/bin/env python3
# -*- coding: utf-8
# vim: set expandtab shiftwidth=4:
# -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
#
# Copyright © 2020 Red Hat, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the 'Software'),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice (including the next
# paragraph) shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
#
#
# Prints the down/up state of each touch slot
#
# Input is a libinput record yaml file
import argparse
import enum
import sys
import yaml
import libevdev
class Slot:
class State(enum.Enum):
NONE = "NONE"
BEGIN = "BEGIN"
UPDATE = "UPDATE"
END = "END"
def __init__(self, index):
self._state = Slot.State.NONE
self.index = index
self.used = False
def begin(self):
assert self.state == Slot.State.NONE
self.state = Slot.State.BEGIN
def end(self):
assert self.state in (Slot.State.BEGIN, Slot.State.UPDATE)
self.state = Slot.State.END
def sync(self):
if self.state == Slot.State.BEGIN:
self.state = Slot.State.UPDATE
elif self.state == Slot.State.END:
self.state = Slot.State.NONE
@property
def state(self):
return self._state
@state.setter
def state(self, newstate):
assert newstate in Slot.State
if newstate != Slot.State.NONE:
self.used = True
self._state = newstate
@property
def is_active(self):
return self.state in (Slot.State.BEGIN, Slot.State.UPDATE)
def __str__(self):
return "+" if self.state in (Slot.State.BEGIN, Slot.State.UPDATE) else " "
def main(argv):
parser = argparse.ArgumentParser(description="Print the state of touches over time")
parser.add_argument(
"--use-st", action="store_true", help="Ignore slots, use the BTN_TOOL bits"
)
parser.add_argument(
"path", metavar="recording", nargs=1, help="Path to libinput-record YAML file"
)
args = parser.parse_args()
yml = yaml.safe_load(open(args.path[0]))
device = yml["devices"][0]
absinfo = device["evdev"]["absinfo"]
try:
nslots = absinfo[libevdev.EV_ABS.ABS_MT_SLOT.value][1] + 1
except KeyError:
args.use_st = True
tool_slot_map = {
libevdev.EV_KEY.BTN_TOOL_FINGER: 0,
libevdev.EV_KEY.BTN_TOOL_PEN: 0,
libevdev.EV_KEY.BTN_TOOL_DOUBLETAP: 1,
libevdev.EV_KEY.BTN_TOOL_TRIPLETAP: 2,
libevdev.EV_KEY.BTN_TOOL_QUADTAP: 3,
libevdev.EV_KEY.BTN_TOOL_QUINTTAP: 4,
}
if args.use_st:
for bit in tool_slot_map:
if bit.value in device["evdev"]["codes"][libevdev.EV_KEY.value]:
nslots = max(nslots, tool_slot_map[bit])
slots = [Slot(i) for i in range(0, nslots)]
# We claim the first slots are used just to make the formatting
# more consistent
for i in range(min(5, len(slots))):
slots[i].used = True
slot = 0
last_time = None
last_slot_state = None
header = "Timestamp | Rel time | Slots |"
print(header)
print("-" * len(header))
def events():
for event in device["events"]:
for evdev in event["evdev"]:
yield evdev
for evdev in events():
e = libevdev.InputEvent(
code=libevdev.evbit(evdev[2], evdev[3]),
value=evdev[4],
sec=evdev[0],
usec=evdev[1],
)
# single-touch formatting is simpler than multitouch, it'll just
# show the highest finger down rather than the correct output.
if args.use_st:
if e.code in tool_slot_map:
slot = tool_slot_map[e.code]
s = slots[slot]
if e.value:
s.begin()
else:
s.end()
else:
if e.code == libevdev.EV_ABS.ABS_MT_SLOT:
slot = e.value
s = slots[slot]
# bcm5974 cycles through slot numbers, so let's say all below
# our current slot number was used
for sl in slots[: slot + 1]:
sl.used = True
else:
s = slots[slot]
if e.code == libevdev.EV_ABS.ABS_MT_TRACKING_ID:
if e.value == -1:
s.end()
else:
s.begin()
elif e.code in (
libevdev.EV_ABS.ABS_MT_POSITION_X,
libevdev.EV_ABS.ABS_MT_POSITION_Y,
libevdev.EV_ABS.ABS_MT_PRESSURE,
libevdev.EV_ABS.ABS_MT_TOUCH_MAJOR,
libevdev.EV_ABS.ABS_MT_TOUCH_MINOR,
):
# If recording started after touch down
if s.state == Slot.State.NONE:
s.begin()
if e.code == libevdev.EV_SYN.SYN_REPORT:
current_slot_state = tuple(s.is_active for s in slots)
if current_slot_state != last_slot_state:
if last_time is None:
last_time = e.sec * 1000000 + e.usec
tdelta = 0
else:
t = e.sec * 1000000 + e.usec
tdelta = int((t - last_time) / 1000) / 1000
last_time = t
fmt = " | ".join([str(s) for s in slots if s.used])
print(
"{:2d}.{:06d} | {:+7.3f}s | {}".format(e.sec, e.usec, tdelta, fmt)
)
last_slot_state = current_slot_state
for s in slots:
s.sync()
if __name__ == "__main__":
main(sys.argv)
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