def test_setGammaRamp():
"""test that the gamma ramp is set as requested"""
testGamma = 2.2
win = visual.Window([600,600], autoLog=False)
desiredRamp = numpy.tile(
visual.gamma.createLinearRamp(
rampSize=win.backend._rampSize,
driver=win.backend._driver
),
(3, 1)
)
if numpy.all(testGamma == 1.0) == False:
# correctly handles 1 or 3x1 gamma vals
desiredRamp = desiredRamp**(1.0/numpy.array(testGamma))
win.gamma = testGamma
for n in range(5):
win.flip()
setRamp = win.backend.getGammaRamp()
win.close()
# can't get/set LUT in travis
utils.skip_under_travis()
assert numpy.allclose(desiredRamp, setRamp, atol=1.0 / desiredRamp.shape[1])
def test_text_with_add(self):
# pyglet text will reset the blendMode to 'avg' so check that we are
# getting back to 'add' if we want it
win = self.win
text = visual.TextStim(win, pos=[0, 0.9])
grat1 = visual.GratingStim(win,
size=2 * self.scaleFactor,
opacity=0.5,
pos=[0.3, 0.0],
ori=45,
sf=2 * self.scaleFactor)
grat2 = visual.GratingStim(win,
size=2 * self.scaleFactor,
opacity=0.5,
pos=[-0.3, 0.0],
ori=-45,
sf=2 * self.scaleFactor)
text.draw()
grat1.draw()
grat2.draw()
utils.skip_under_travis()
utils.compareScreenshot('blend_add_%s.png' % (self.contextName),
win,
crit=20)
def test_gammaSetGetMatch():
"""test that repeatedly getting and setting the gamma table has no
cumulative effect."""
startGammaTable = None
n_repeats = 2
for _ in range(n_repeats):
win = visual.Window([600, 600], autoLog=False)
for _ in range(5):
win.flip()
if startGammaTable is None:
startGammaTable = win.backend.getGammaRamp()
else:
currGammaTable = win.backend.getGammaRamp()
assert numpy.all(currGammaTable == startGammaTable)
win.close()
utils.skip_under_travis()
def test_gammaSetGetMatch():
"""test that repeatedly getting and setting the gamma table has no
cumulative effect."""
startGammaTable = None
n_repeats = 2
for _ in range(n_repeats):
win = visual.Window([600, 600], autoLog=False)
for _ in range(5):
win.flip()
if startGammaTable is None:
startGammaTable = win.backend.getGammaRamp()
else:
currGammaTable = win.backend.getGammaRamp()
assert numpy.all(currGammaTable == startGammaTable)
win.close()
utils.skip_under_travis()
def test_refresh_rate(self):
if self.win.winType=='pygame':
pytest.skip("getMsPerFrame seems to crash the testing of pygame")
#make sure that we're successfully syncing to the frame rate
msPFavg, msPFstd, msPFmed = visual.getMsPerFrame(self.win,nFrames=60, showVisual=True)
utils.skip_under_travis() # skip late so we smoke test the code
assert (1000/150.0 < msPFavg < 1000/40.0), \
"Your frame period is %.1fms which suggests you aren't syncing to the frame" %msPFavg
def test_refresh_rate(self):
if self.win.winType=='pygame':
pytest.skip("getMsPerFrame seems to crash the testing of pygame")
#make sure that we're successfully syncing to the frame rate
msPFavg, msPFstd, msPFmed = visual.getMsPerFrame(self.win,nFrames=60, showVisual=True)
utils.skip_under_travis() # skip late so we smoke test the code
assert (1000/150.0 < msPFavg < 1000/40.0), \
"Your frame period is %.1fms which suggests you aren't syncing to the frame" %msPFavg
def test_text_with_add(self):
# pyglet text will reset the blendMode to 'avg' so check that we are
# getting back to 'add' if we want it
win = self.win
text = visual.TextStim(win, pos=[0, 0.9])
grat1 = visual.GratingStim(win, size=2*self.scaleFactor,
opacity=0.5,
pos=[0.3,0.0], ori=45, sf=2*self.scaleFactor)
grat2 = visual.GratingStim(win, size=2 * self.scaleFactor,
opacity=0.5,
pos=[-0.3,0.0], ori=-45, sf=2*self.scaleFactor)
text.draw()
grat1.draw()
grat2.draw()
utils.skip_under_travis()
utils.compareScreenshot('blend_add_%s.png' %(self.contextName), win, crit=20)
