Pillow/Tests/bench_cffi_access.py
2014-01-06 22:09:00 -08:00

52 lines
1.4 KiB
Python

from tester import *
# not running this test by default. No DOS against travis.
from PIL import PyAccess
from PIL import Image
import time
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 = lena()
im.load()
#im = Image.new( "RGB", (2000,2000), (1,3,2))
caccess = im.im.pixel_access(False)
access = PyAccess.new(im, False)
assert_equal(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)