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#!/usr/bin/env python3
"""Run pen pressure through Xorg's virtual input driver and the example app."""
import os
from pathlib import Path
import subprocess
import sys
import tempfile
import time
def main():
xorg, test = sys.argv[1:]
module_path = os.environ.get("YASL_XORG_MODULE_PATH")
if not module_path:
module_path = subprocess.check_output(
[xorg, "-showDefaultModulePath"], text=True, timeout=5).strip()
if any(c in module_path for c in ('"', "\n", "\r")):
raise ValueError("Invalid Xorg module path")
paths = [Path(path) for path in module_path.split(",")]
for module in ("drivers/dummy_drv.so", "input/inputtest_drv.so"):
if not any((path / module).is_file() for path in paths):
raise RuntimeError(f"Missing Xorg module: {module}")
with tempfile.TemporaryDirectory(prefix="yasl-tablet-") as directory:
root = Path(directory)
pen, eraser = root / "pen.sock", root / "eraser.sock"
config = root / "xorg.conf"
config.write_text(f'''
Section "ServerFlags"
Option "AutoAddDevices" "false"
Option "AutoAddGPU" "false"
Option "DontVTSwitch" "true"
EndSection
Section "Files"
ModulePath "{module_path}"
EndSection
Section "Module"
Disable "glx"
EndSection
Section "Device"
Identifier "virtual-video"
Driver "dummy"
VideoRam 16384
EndSection
Section "Monitor"
Identifier "virtual-monitor"
HorizSync 5.0 - 1000.0
VertRefresh 5.0 - 200.0
Modeline "1200x900" 96.96 1200 1280 1408 1616 900 901 904 932
EndSection
Section "Screen"
Identifier "virtual-screen"
Device "virtual-video"
Monitor "virtual-monitor"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1200x900"
EndSubSection
EndSection
Section "InputDevice"
Identifier "YASL Test Pen"
Driver "inputtest"
Option "DeviceType" "PointerAbsoluteProximity"
Option "PointerHasPressure" "true"
Option "SocketPath" "{pen}"
EndSection
Section "InputDevice"
Identifier "YASL Test Reverse Tool"
Driver "inputtest"
Option "DeviceType" "PointerAbsoluteProximity"
Option "PointerHasPressure" "true"
Option "SocketPath" "{eraser}"
EndSection
Section "InputDevice"
Identifier "YASL Test Keyboard"
Driver "inputtest"
Option "DeviceType" "Keyboard"
Option "SocketPath" "{root / 'keyboard.sock'}"
EndSection
Section "ServerLayout"
Identifier "virtual-layout"
Screen "virtual-screen"
InputDevice "YASL Test Pen" "CorePointer"
InputDevice "YASL Test Reverse Tool" "SendCoreEvents"
InputDevice "YASL Test Keyboard" "CoreKeyboard"
EndSection
''')
display_file = root / "display"
with display_file.open("w") as display_fd, (root / "server.log").open("w+") as log:
server = subprocess.Popen([
xorg, "-config", str(config), "-logfile", str(root / "xorg.log"),
"-displayfd", str(display_fd.fileno()), "-noreset", "-nolisten", "tcp",
"-novtswitch", "-sharevts", "-seat", f"yasl-tablet-test-{os.getpid()}",
], pass_fds=(display_fd.fileno(),), stdout=log, stderr=log)
try:
deadline = time.monotonic() + 10
while not (display_file.read_text().strip() and pen.is_socket() and eraser.is_socket()):
if server.poll() is not None:
raise RuntimeError("The virtual X server stopped")
if time.monotonic() >= deadline:
raise TimeoutError("The virtual X server did not start")
time.sleep(0.02)
env = os.environ.copy()
env["DISPLAY"] = ":" + display_file.read_text().strip()
env.pop("XAUTHORITY", None)
subprocess.run([test, str(pen), str(eraser)], env=env, check=True, timeout=10)
except BaseException:
log.flush()
log.seek(0, 2)
log.seek(max(0, log.tell() - 8000))
print(log.read(), file=sys.stderr)
raise
finally:
server.terminate()
try:
server.wait(timeout=5)
except subprocess.TimeoutExpired:
server.kill()
server.wait()
if __name__ == "__main__":
main()
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