def run_once(self):
if utils.get_board() not in ['samus', 'gandof']:
raise error.TestNAError(
'Trying to run PSR tests on unsupported board.')
psr_enabled = self._is_psr_enabled()
if (not psr_enabled
and graphics_utils.call_xrandr('--output eDP1 --set psr on')):
error.TestFail('Unable to enable PSR via xrandr.')
# Start chrome in full screen mode so that there is no blinking cursor
# or ticking clock on the screen.
with chrome.Chrome(logged_in=False, extra_browser_args=['--kiosk']):
# Sample the PSR performance count from debugfs and wait for 20s.
# At the end of 20s, re-sample the PSR performance count. The time
# spent in PSR should be close to (20s - <vblankoffdelay>).
sleep_time_milliseconds = 20 * 1000
min_occupancy = 0.9 * (sleep_time_milliseconds -
self._get_vblank_timeout())
perf_count_old = self._get_perf_count()
time.sleep(sleep_time_milliseconds / 1000)
perf_count_new = self._get_perf_count()
occupancy_time = perf_count_new - perf_count_old
if occupancy_time < min_occupancy:
raise error.TestFail(
'PSR occupancy time %dms less than expected.' %
occupancy_time)
# Disable PSR if it was not enabled to begin with.
if (not psr_enabled and
graphics_utils.call_xrandr('--output eDP1 --set psr off')):
raise error.TestWarn('Unable to disable PSR via xrandr.')
def run_x(self):
xrandr_output = graphics_utils.call_xrandr().split('\n')
res = self.get_current_res(xrandr_output)
if not res or not re.match(r'\d+x\d+$', res):
raise error.TestFail('%s is not a valid resolution' % res)
if self.is_lvds_res(res, xrandr_output) and \
res not in _SUPPORTED_LVDS_RESOLUTIONS:
raise error.TestFail(_LVDS_UNSUPPORTED_MESSAGE % res)
def get_output_rect(self, output):
"""Gets the size and position of the given output on the screen buffer.
@param output: The output name as a string.
@return A tuple of the rectangle (width, height, fb_offset_x,
fb_offset_y) of ints.
"""
regexp = re.compile(
r'^([-A-Za-z0-9]+)\s+connected\s+(\d+)x(\d+)\+(\d+)\+(\d+)', re.M)
match = regexp.findall(graphics_utils.call_xrandr())
for m in match:
if m[0] == output:
return (int(m[1]), int(m[2]), int(m[3]), int(m[4]))
return (0, 0, 0, 0)