Pillow/Tests/bench_cffi_access.py
2020-03-28 12:51:28 +11:00

57 lines
1.4 KiB
Python

import time
from PIL import PyAccess
from .helper import hopper
# 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))
)
def test_direct():
im = hopper()
im.load()
# im = Image.new( "RGB", (2000, 2000), (1, 3, 2))
caccess = im.im.pixel_access(False)
access = PyAccess.new(im, False)
assert 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)