Pillow/Tests/bench_cffi_access.py
Jon Dufresne d50445ff30 Introduce isort to automate import ordering and formatting
Similar to the recent adoption of Black. isort is a Python utility to
sort imports alphabetically and automatically separate into sections. By
using isort, contributors can quickly and automatically conform to the
projects style without thinking. Just let the tool do it.

Uses the configuration recommended by the Black to avoid conflicts of
style.

Rewrite TestImageQt.test_deprecated to no rely on import order.
2019-07-06 16:11:35 -07:00

62 lines
1.6 KiB
Python

import time
from PIL import PyAccess
from .helper import PillowTestCase, hopper, unittest
# Not running this test by default. No DOS against Travis CI.
def iterate_get(size, access):
(w, h) = size
for x in range(w):
for y in range(h):
access[(x, y)]
def iterate_set(size, access):
(w, h) = size
for x in range(w):
for y in range(h):
access[(x, y)] = (x % 256, y % 256, 0)
def timer(func, label, *args):
iterations = 5000
starttime = time.time()
for x in range(iterations):
func(*args)
if time.time() - starttime > 10:
print(
"%s: breaking at %s iterations, %.6f per iteration"
% (label, x + 1, (time.time() - starttime) / (x + 1.0))
)
break
if x == iterations - 1:
endtime = time.time()
print(
"%s: %.4f s %.6f per iteration"
% (label, endtime - starttime, (endtime - starttime) / (x + 1.0))
)
class BenchCffiAccess(PillowTestCase):
def test_direct(self):
im = hopper()
im.load()
# im = Image.new( "RGB", (2000, 2000), (1, 3, 2))
caccess = im.im.pixel_access(False)
access = PyAccess.new(im, False)
self.assertEqual(caccess[(0, 0)], access[(0, 0)])
print("Size: %sx%s" % im.size)
timer(iterate_get, "PyAccess - get", im.size, access)
timer(iterate_set, "PyAccess - set", im.size, access)
timer(iterate_get, "C-api - get", im.size, caccess)
timer(iterate_set, "C-api - set", im.size, caccess)
if __name__ == "__main__":
unittest.main()