def _test2():
info = """This will test if stimulus presentation can be synchronized to the refreshrate of the screen.
A good result is a fast, constant and smooth flickering without any distortions (e.g. horizontal stripes, tearing).
The estimated refreshrate should resemble your actual screen refreshrate (common refreshrates are between 40 and 240 Hz).
[Press RETURN to continue]"""
text = stimuli.TextScreen("Stimulus presentation test (2)", info)
text.present()
exp.keyboard.wait([constants.K_RETURN])
black = stimuli.BlankScreen(colour=constants.C_BLACK)
black.preload()
white = stimuli.BlankScreen(colour=constants.C_WHITE)
white.preload()
times = []
black.present()
for _x in range(100):
start = Clock._cpu_time()
black.present()
times.append(Clock._cpu_time() - start)
start = Clock._cpu_time()
white.present()
times.append(Clock._cpu_time() - start)
refresh_rate = 1000 / (statistics.mean(times) * 1000)
info = """Your estimated refresh rate is {0} Hz.
[Press RETURN to continue]
""".format(refresh_rate)
text = stimuli.TextScreen("Results", info)
text.present()
exp.keyboard.wait([constants.K_RETURN])
text = stimuli.TextScreen(
"Was the flickering fast, constant and smooth, without any distortions?",
"[Press Y or N]")
text.present()
key, _rt = exp.keyboard.wait([constants.K_y,
constants.K_n])
if key == constants.K_y:
response2 = "Yes"
elif key == constants.K_n:
response2 = "No"
return refresh_rate, response2
def _test1():
info = """This will test the visual stimulus presentation timing specifics of your system.
During the test, you will see two squares on the screen.
After the test, you will be asked to indicate which (if any) of those two squares were flickering.
[Press RETURN to continue]"""
# TODO test very slow quit
text = stimuli.TextScreen("Visual stimulus presentation test", info)
#y = []
#for x in [16, 32, 48, 64]:
# y.extend([x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, ])
#graph1 = _make_graph(range(60), y, [0, 255, 0])
#y = range(80)
#graph2 = _make_graph(range(60), y, [255, 0, 0])
#graph1.position = (-200, -100)
#graph2.position = (200, -100)
text.present()
#graph1.present(clear=False, update=False)
#graph2.present(clear=False)
exp.keyboard.wait([constants.K_RETURN])
message = stimuli.TextScreen("Running", "Please wait...")
message.present()
message.present()
message.present()
c1 = stimuli.Canvas((400, 400))
c2 = stimuli.Canvas((400, 400))
c3 = stimuli.Canvas((400, 400))
frame1 = stimuli.Rectangle((100, 100), position=(-100, 0))
frame2 = stimuli.Rectangle((100, 100), position=(100, 0))
bg = stimuli.Rectangle((90, 90), colour=exp.background_colour)
bg.plot(frame1)
bg.plot(frame2)
frame1.plot(c1)
frame2.plot(c2)
frame1.plot(c3)
frame2.plot(c3)
c1.preload()
c2.preload()
c3.preload()
c1.present(clear=False)
c2.present(clear=False)
c3.present(clear=False)
s1 = stimuli.Circle(1, colour=exp.background_colour)
s2 = stimuli.Circle(1, colour=exp.background_colour)
s1.preload()
s2.preload()
todo_time = range(0, 60) * 3
randomize.shuffle_list(todo_time)
actual_time = []
for x in todo_time:
s1.present(clear=False)
start = get_time()
exp.clock.wait(x)
s2.present(clear=False)
actual_time.append((get_time() - start) * 1000)
exp.clock.wait(expyriment.design.randomize.rand_int(30, 60))
# determine refresh_rate
tmp = []
for _x in range(100):
start = get_time()
s1.present(clear=False)
tmp.append(get_time() - start)
start = get_time()
s2.present(clear=False)
tmp.append(get_time() - start)
refresh_rate = 1000 / (statistics.mean(tmp) * 1000)
#text = stimuli.TextScreen("Results", "[Press RETURN to continue]")
#graph = _make_graph(todo_time, actual_time, [150, 150, 150])
#graph.position = (0, -100)
#text.present(update=False)
#graph.present(clear=False)
#exp.keyboard.wait([constants.K_RETURN])
#text = stimuli.TextScreen(
# "Which picture looks most similar to the results?",
# "[Press LEFT or RIGHT arrow key]")
#y = []
#for x in [16, 32, 48, 64]:
# y.extend([x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, ])
#graph1 = _make_graph(range(60), y, [0, 255, 0])
#y = range(80)
#graph2 = _make_graph(range(60), y, [255, 0, 0])
#graph1.position = (-200, -100)
#graph2.position = (200, -100)
#text.present(update=False)
#graph1.present(clear=False, update=False)
#graph2.present(clear=False)
#key, _rt = exp.keyboard.wait([constants.K_LEFT,
# constants.K_RIGHT])
#if key == constants.K_LEFT:
# response1 = "Steps"
#elif key == constants.K_RIGHT:
# response1 = "Line"
#else:
# response1 = None
# show histogram of presentation delays
def expected_delay(presentation_time, refresh_rate):
refresh_time = 1000.0 / refresh_rate
return refresh_time - (presentation_time % refresh_time)
# delay = map(lambda x: x[1]- x[0], zip(todo_time, actual_time))
unexplained_delay = map(
lambda x: x[1] - x[0] - expected_delay(x[0], refresh_rate),
zip(todo_time, actual_time))
hist, hist_str = _histogram(unexplained_delay)
inaccuracies = []
delayed_presentations = 0
for key in hist.keys():
inaccuracies.extend([key % (1000 / refresh_rate)] * hist[key])
if key != 0:
delayed_presentations += hist[key]
inaccuracy = int(round(sum(inaccuracies) / float(len(inaccuracies))))
delayed = round(100 * delayed_presentations / 180.0, 2)
text = stimuli.TextScreen(
"How many of the two squares were flickering?",
"[Press 0, 1 or 2]")
text.present()
key, _rt = exp.keyboard.wait(
[constants.K_0, constants.K_1, constants.K_2])
if key == constants.K_0:
response = 0
elif key == constants.K_1:
response = 1
elif key == constants.K_2:
response = 2
info = stimuli.TextScreen("Results", "")
results1 = stimuli.TextScreen(
"",
"Estimated Screen Refresh Rate: {0} Hz (~ every {1} ms)\n\n".
format(int(round(refresh_rate)), int(1000.0 / refresh_rate)),
text_font="freemono",
text_size=16,
text_bold=True,
text_justification=0,
position=(0, 40))
results2 = stimuli.TextScreen(
"",
"Detected Framebuffer Pages: {0}\n\n".format(response + 1),
text_font="freemono",
text_size=16,
text_bold=True,
text_justification=0,
position=(0, 20))
if inaccuracy != 0:
results3_colour = [255, 0, 0]
else:
results3_colour = [0, 255, 0]
results3 = stimuli.TextScreen(
"",
"Average Reporting Inaccuracy: {0} ms\n\n".format(inaccuracy),
text_font="freemono",
text_size=16,
text_bold=True,
text_justification=0,
text_colour=results3_colour,
position=(0, -20))
if delayed > 10:
results4_colour = [255, 0, 0]
elif 10 > delayed > 1:
results4_colour = [255, 255, 0]
else:
results4_colour = [0, 255, 0]
results4 = stimuli.TextScreen(
"",
"Unexplained Presentation Delays: {0} %\n\n\n".format(delayed),
text_font="freemono",
text_size=16,
text_bold=True,
text_justification=0,
text_colour=results4_colour,
position=(0, -40))
results5 = stimuli.TextScreen("",
hist_str,
text_font="freemono",
text_size=16,
text_bold=True,
text_justification=0,
position=(0, -100))
results1.plot(info)
results2.plot(info)
results3.plot(info)
results4.plot(info)
results5.plot(info)
info2 = stimuli.TextLine("[Press RETURN to continue]",
position=(0, -160))
info2.plot(info)
info.present()
exp.keyboard.wait([constants.K_RETURN])
return todo_time, actual_time, refresh_rate, inaccuracy, delayed, response
def _test1():
info = """This will test the visual stimulus presentation timing specifics of your system.
During the test, you will see two squares on the screen.
After the test, you will be asked to indicate which (if any) of those two squares were flickering.
[Press RETURN to continue]"""
# TODO test very slow quit
text = stimuli.TextScreen("Visual stimulus presentation test", info)
#y = []
#for x in [16, 32, 48, 64]:
# y.extend([x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, ])
#graph1 = _make_graph(range(60), y, [0, 255, 0])
#y = range(80)
#graph2 = _make_graph(range(60), y, [255, 0, 0])
#graph1.position = (-200, -100)
#graph2.position = (200, -100)
text.present()
#graph1.present(clear=False, update=False)
#graph2.present(clear=False)
exp.keyboard.wait([constants.K_RETURN])
message = stimuli.TextScreen("Running", "Please wait...")
message.present()
message.present()
message.present()
c1 = stimuli.Canvas((400, 400))
c2 = stimuli.Canvas((400, 400))
c3 = stimuli.Canvas((400, 400))
frame1 = stimuli.Rectangle((100, 100), position=(-100, 0))
frame2 = stimuli.Rectangle((100, 100), position=(100, 0))
bg = stimuli.Rectangle((90, 90), colour=exp.background_colour)
bg.plot(frame1)
bg.plot(frame2)
frame1.plot(c1)
frame2.plot(c2)
frame1.plot(c3)
frame2.plot(c3)
c1.preload()
c2.preload()
c3.preload()
c1.present(clear=False)
c2.present(clear=False)
c3.present(clear=False)
s1 = stimuli.Circle(1, colour=exp.background_colour)
s2 = stimuli.Circle(1, colour=exp.background_colour)
s1.preload()
s2.preload()
todo_time = range(0, 60) * 3
randomize.shuffle_list(todo_time)
actual_time = []
for x in todo_time:
s1.present(clear=False)
start = get_time()
exp.clock.wait(x)
s2.present(clear=False)
actual_time.append((get_time() - start) * 1000)
exp.clock.wait(expyriment.design.randomize.rand_int(30, 60))
# determine refresh_rate
tmp = []
for _x in range(100):
start = get_time()
s1.present(clear=False)
tmp.append(get_time() - start)
start = get_time()
s2.present(clear=False)
tmp.append(get_time() - start)
refresh_rate = 1000 / (statistics.mean(tmp) * 1000)
#text = stimuli.TextScreen("Results", "[Press RETURN to continue]")
#graph = _make_graph(todo_time, actual_time, [150, 150, 150])
#graph.position = (0, -100)
#text.present(update=False)
#graph.present(clear=False)
#exp.keyboard.wait([constants.K_RETURN])
#text = stimuli.TextScreen(
# "Which picture looks most similar to the results?",
# "[Press LEFT or RIGHT arrow key]")
#y = []
#for x in [16, 32, 48, 64]:
# y.extend([x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, ])
#graph1 = _make_graph(range(60), y, [0, 255, 0])
#y = range(80)
#graph2 = _make_graph(range(60), y, [255, 0, 0])
#graph1.position = (-200, -100)
#graph2.position = (200, -100)
#text.present(update=False)
#graph1.present(clear=False, update=False)
#graph2.present(clear=False)
#key, _rt = exp.keyboard.wait([constants.K_LEFT,
# constants.K_RIGHT])
#if key == constants.K_LEFT:
# response1 = "Steps"
#elif key == constants.K_RIGHT:
# response1 = "Line"
#else:
# response1 = None
# show histogram of presentation delays
def expected_delay(presentation_time, refresh_rate):
refresh_time = 1000.0/refresh_rate
return refresh_time - (presentation_time % refresh_time)
# delay = map(lambda x: x[1]- x[0], zip(todo_time, actual_time))
unexplained_delay = map(lambda x: x[1]- x[0] - expected_delay(x[0], refresh_rate),
zip(todo_time, actual_time))
hist, hist_str = _histogram(unexplained_delay)
inaccuracies = []
delayed_presentations = 0
for key in hist.keys():
inaccuracies.extend([key % (1000 / refresh_rate)] * hist[key])
if key != 0:
delayed_presentations += hist[key]
inaccuracy = int(round(sum(inaccuracies)/float(len(inaccuracies))))
delayed = round(100 * delayed_presentations/180.0, 2)
text = stimuli.TextScreen(
"How many of the two squares were flickering?",
"[Press 0, 1 or 2]")
text.present()
key, _rt = exp.keyboard.wait([constants.K_0,
constants.K_1,
constants.K_2])
if key == constants.K_0:
response = 0
elif key == constants.K_1:
response = 1
elif key == constants.K_2:
response = 2
info = stimuli.TextScreen("Results", "")
results1 = stimuli.TextScreen("",
"Estimated Screen Refresh Rate: {0} Hz (~ every {1} ms)\n\n".format(
int(round(refresh_rate)), int(1000.0 / refresh_rate)),
text_font="freemono", text_size = 16, text_bold=True,
text_justification=0, position=(0, 40))
results2 = stimuli.TextScreen("",
"Detected Framebuffer Pages: {0}\n\n".format(response+1),
text_font="freemono", text_size = 16, text_bold=True,
text_justification=0, position=(0, 20))
if inaccuracy != 0:
results3_colour = [255, 0, 0]
else:
results3_colour = [0, 255, 0]
results3 = stimuli.TextScreen("",
"Average Reporting Inaccuracy: {0} ms\n\n".format(inaccuracy),
text_font="freemono", text_size = 16, text_bold=True,
text_justification=0, text_colour=results3_colour, position=(0, -20))
if delayed > 10:
results4_colour = [255, 0, 0]
elif 10 > delayed > 1:
results4_colour = [255, 255, 0]
else:
results4_colour = [0, 255, 0]
results4 = stimuli.TextScreen("",
"Unexplained Presentation Delays: {0} %\n\n\n".format(delayed),
text_font="freemono", text_size = 16, text_bold=True,
text_justification=0, text_colour=results4_colour, position=(0, -40))
results5 = stimuli.TextScreen("",
hist_str,
text_font="freemono", text_size = 16, text_bold=True,
text_justification=0, position=(0, -100))
results1.plot(info)
results2.plot(info)
results3.plot(info)
results4.plot(info)
results5.plot(info)
info2 = stimuli.TextLine("[Press RETURN to continue]", position=(0, -160))
info2.plot(info)
info.present()
exp.keyboard.wait([constants.K_RETURN])
return todo_time, actual_time, refresh_rate, inaccuracy, delayed, response
