mirror of
https://github.com/python-pillow/Pillow.git
synced 2025-10-31 16:07:30 +03:00
375 lines
12 KiB
Python
375 lines
12 KiB
Python
from helper import unittest, PillowTestCase, hopper, on_appveyor
|
|
|
|
from PIL import Image
|
|
import sys
|
|
import os
|
|
|
|
# CFFI imports pycparser which doesn't support PYTHONOPTIMIZE=2
|
|
# https://github.com/eliben/pycparser/pull/198#issuecomment-317001670
|
|
if os.environ.get("PYTHONOPTIMIZE") == "2":
|
|
cffi = None
|
|
else:
|
|
try:
|
|
from PIL import PyAccess
|
|
import cffi
|
|
except ImportError:
|
|
cffi = None
|
|
|
|
|
|
class AccessTest(PillowTestCase):
|
|
# initial value
|
|
_init_cffi_access = Image.USE_CFFI_ACCESS
|
|
_need_cffi_access = False
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
Image.USE_CFFI_ACCESS = cls._need_cffi_access
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
Image.USE_CFFI_ACCESS = cls._init_cffi_access
|
|
|
|
|
|
class TestImagePutPixel(AccessTest):
|
|
def test_sanity(self):
|
|
im1 = hopper()
|
|
im2 = Image.new(im1.mode, im1.size, 0)
|
|
|
|
for y in range(im1.size[1]):
|
|
for x in range(im1.size[0]):
|
|
pos = x, y
|
|
im2.putpixel(pos, im1.getpixel(pos))
|
|
|
|
self.assert_image_equal(im1, im2)
|
|
|
|
im2 = Image.new(im1.mode, im1.size, 0)
|
|
im2.readonly = 1
|
|
|
|
for y in range(im1.size[1]):
|
|
for x in range(im1.size[0]):
|
|
pos = x, y
|
|
im2.putpixel(pos, im1.getpixel(pos))
|
|
|
|
self.assertFalse(im2.readonly)
|
|
self.assert_image_equal(im1, im2)
|
|
|
|
im2 = Image.new(im1.mode, im1.size, 0)
|
|
|
|
pix1 = im1.load()
|
|
pix2 = im2.load()
|
|
|
|
for y in range(im1.size[1]):
|
|
for x in range(im1.size[0]):
|
|
pix2[x, y] = pix1[x, y]
|
|
|
|
self.assert_image_equal(im1, im2)
|
|
|
|
def test_sanity_negative_index(self):
|
|
im1 = hopper()
|
|
im2 = Image.new(im1.mode, im1.size, 0)
|
|
|
|
width, height = im1.size
|
|
self.assertEqual(im1.getpixel((0, 0)), im1.getpixel((-width, -height)))
|
|
self.assertEqual(im1.getpixel((-1, -1)),
|
|
im1.getpixel((width-1, height-1)))
|
|
|
|
for y in range(-1, -im1.size[1]-1, -1):
|
|
for x in range(-1, -im1.size[0]-1, -1):
|
|
pos = x, y
|
|
im2.putpixel(pos, im1.getpixel(pos))
|
|
|
|
self.assert_image_equal(im1, im2)
|
|
|
|
im2 = Image.new(im1.mode, im1.size, 0)
|
|
im2.readonly = 1
|
|
|
|
for y in range(-1, -im1.size[1]-1, -1):
|
|
for x in range(-1, -im1.size[0]-1, -1):
|
|
pos = x, y
|
|
im2.putpixel(pos, im1.getpixel(pos))
|
|
|
|
self.assertFalse(im2.readonly)
|
|
self.assert_image_equal(im1, im2)
|
|
|
|
im2 = Image.new(im1.mode, im1.size, 0)
|
|
|
|
pix1 = im1.load()
|
|
pix2 = im2.load()
|
|
|
|
for y in range(-1, -im1.size[1]-1, -1):
|
|
for x in range(-1, -im1.size[0]-1, -1):
|
|
pix2[x, y] = pix1[x, y]
|
|
|
|
self.assert_image_equal(im1, im2)
|
|
|
|
|
|
class TestImageGetPixel(AccessTest):
|
|
@staticmethod
|
|
def color(mode):
|
|
bands = Image.getmodebands(mode)
|
|
if bands == 1:
|
|
return 1
|
|
else:
|
|
return tuple(range(1, bands + 1))
|
|
|
|
def check(self, mode, c=None):
|
|
if not c:
|
|
c = self.color(mode)
|
|
|
|
# check putpixel
|
|
im = Image.new(mode, (1, 1), None)
|
|
im.putpixel((0, 0), c)
|
|
self.assertEqual(
|
|
im.getpixel((0, 0)), c,
|
|
"put/getpixel roundtrip failed for mode %s, color %s" % (mode, c))
|
|
|
|
# check putpixel negative index
|
|
im.putpixel((-1, -1), c)
|
|
self.assertEqual(
|
|
im.getpixel((-1, -1)), c,
|
|
"put/getpixel roundtrip negative index failed"
|
|
" for mode %s, color %s" % (mode, c))
|
|
|
|
# Check 0
|
|
im = Image.new(mode, (0, 0), None)
|
|
with self.assertRaises(IndexError):
|
|
im.putpixel((0, 0), c)
|
|
with self.assertRaises(IndexError):
|
|
im.getpixel((0, 0))
|
|
# Check 0 negative index
|
|
with self.assertRaises(IndexError):
|
|
im.putpixel((-1, -1), c)
|
|
with self.assertRaises(IndexError):
|
|
im.getpixel((-1, -1))
|
|
|
|
# check initial color
|
|
im = Image.new(mode, (1, 1), c)
|
|
self.assertEqual(
|
|
im.getpixel((0, 0)), c,
|
|
"initial color failed for mode %s, color %s " % (mode, c))
|
|
# check initial color negative index
|
|
self.assertEqual(
|
|
im.getpixel((-1, -1)), c,
|
|
"initial color failed with negative index"
|
|
"for mode %s, color %s " % (mode, c))
|
|
|
|
# Check 0
|
|
im = Image.new(mode, (0, 0), c)
|
|
with self.assertRaises(IndexError):
|
|
im.getpixel((0, 0))
|
|
# Check 0 negative index
|
|
with self.assertRaises(IndexError):
|
|
im.getpixel((-1, -1))
|
|
|
|
def test_basic(self):
|
|
for mode in ("1", "L", "LA", "I", "I;16", "I;16B", "F",
|
|
"P", "PA", "RGB", "RGBA", "RGBX", "CMYK", "YCbCr"):
|
|
self.check(mode)
|
|
|
|
def test_signedness(self):
|
|
# see https://github.com/python-pillow/Pillow/issues/452
|
|
# pixelaccess is using signed int* instead of uint*
|
|
for mode in ("I;16", "I;16B"):
|
|
self.check(mode, 2**15-1)
|
|
self.check(mode, 2**15)
|
|
self.check(mode, 2**15+1)
|
|
self.check(mode, 2**16-1)
|
|
|
|
def test_p_putpixel_rgb_rgba(self):
|
|
for color in [(255, 0, 0), (255, 0, 0, 255)]:
|
|
im = Image.new("P", (1, 1), 0)
|
|
im.putpixel((0, 0), color)
|
|
self.assertEqual(im.convert("RGB").getpixel((0, 0)), (255, 0, 0))
|
|
|
|
|
|
@unittest.skipIf(cffi is None, "No cffi")
|
|
class TestCffiPutPixel(TestImagePutPixel):
|
|
_need_cffi_access = True
|
|
|
|
|
|
@unittest.skipIf(cffi is None, "No cffi")
|
|
class TestCffiGetPixel(TestImageGetPixel):
|
|
_need_cffi_access = True
|
|
|
|
|
|
@unittest.skipIf(cffi is None, "No cffi")
|
|
class TestCffi(AccessTest):
|
|
_need_cffi_access = True
|
|
|
|
def _test_get_access(self, im):
|
|
"""Do we get the same thing as the old pixel access
|
|
|
|
Using private interfaces, forcing a capi access and
|
|
a pyaccess for the same image"""
|
|
caccess = im.im.pixel_access(False)
|
|
access = PyAccess.new(im, False)
|
|
|
|
w, h = im.size
|
|
for x in range(0, w, 10):
|
|
for y in range(0, h, 10):
|
|
self.assertEqual(access[(x, y)], caccess[(x, y)])
|
|
|
|
# Access an out-of-range pixel
|
|
self.assertRaises(ValueError,
|
|
lambda: access[(access.xsize+1, access.ysize+1)])
|
|
|
|
def test_get_vs_c(self):
|
|
rgb = hopper('RGB')
|
|
rgb.load()
|
|
self._test_get_access(rgb)
|
|
self._test_get_access(hopper('RGBA'))
|
|
self._test_get_access(hopper('L'))
|
|
self._test_get_access(hopper('LA'))
|
|
self._test_get_access(hopper('1'))
|
|
self._test_get_access(hopper('P'))
|
|
# self._test_get_access(hopper('PA')) # PA -- how do I make a PA image?
|
|
self._test_get_access(hopper('F'))
|
|
|
|
im = Image.new('I;16', (10, 10), 40000)
|
|
self._test_get_access(im)
|
|
im = Image.new('I;16L', (10, 10), 40000)
|
|
self._test_get_access(im)
|
|
im = Image.new('I;16B', (10, 10), 40000)
|
|
self._test_get_access(im)
|
|
|
|
im = Image.new('I', (10, 10), 40000)
|
|
self._test_get_access(im)
|
|
# These don't actually appear to be modes that I can actually make,
|
|
# as unpack sets them directly into the I mode.
|
|
# im = Image.new('I;32L', (10, 10), -2**10)
|
|
# self._test_get_access(im)
|
|
# im = Image.new('I;32B', (10, 10), 2**10)
|
|
# self._test_get_access(im)
|
|
|
|
def _test_set_access(self, im, color):
|
|
"""Are we writing the correct bits into the image?
|
|
|
|
Using private interfaces, forcing a capi access and
|
|
a pyaccess for the same image"""
|
|
caccess = im.im.pixel_access(False)
|
|
access = PyAccess.new(im, False)
|
|
|
|
w, h = im.size
|
|
for x in range(0, w, 10):
|
|
for y in range(0, h, 10):
|
|
access[(x, y)] = color
|
|
self.assertEqual(color, caccess[(x, y)])
|
|
|
|
# Attempt to set the value on a read-only image
|
|
access = PyAccess.new(im, True)
|
|
with self.assertRaises(ValueError):
|
|
access[(0, 0)] = color
|
|
|
|
def test_set_vs_c(self):
|
|
rgb = hopper('RGB')
|
|
rgb.load()
|
|
self._test_set_access(rgb, (255, 128, 0))
|
|
self._test_set_access(hopper('RGBA'), (255, 192, 128, 0))
|
|
self._test_set_access(hopper('L'), 128)
|
|
self._test_set_access(hopper('LA'), (128, 128))
|
|
self._test_set_access(hopper('1'), 255)
|
|
self._test_set_access(hopper('P'), 128)
|
|
# self._test_set_access(i, (128, 128)) #PA -- undone how to make
|
|
self._test_set_access(hopper('F'), 1024.0)
|
|
|
|
im = Image.new('I;16', (10, 10), 40000)
|
|
self._test_set_access(im, 45000)
|
|
im = Image.new('I;16L', (10, 10), 40000)
|
|
self._test_set_access(im, 45000)
|
|
im = Image.new('I;16B', (10, 10), 40000)
|
|
self._test_set_access(im, 45000)
|
|
|
|
im = Image.new('I', (10, 10), 40000)
|
|
self._test_set_access(im, 45000)
|
|
# im = Image.new('I;32L', (10, 10), -(2**10))
|
|
# self._test_set_access(im, -(2**13)+1)
|
|
# im = Image.new('I;32B', (10, 10), 2**10)
|
|
# self._test_set_access(im, 2**13-1)
|
|
|
|
def test_not_implemented(self):
|
|
self.assertIsNone(PyAccess.new(hopper("BGR;15")))
|
|
|
|
# ref https://github.com/python-pillow/Pillow/pull/2009
|
|
def test_reference_counting(self):
|
|
size = 10
|
|
|
|
for _ in range(10):
|
|
# Do not save references to the image, only to the access object
|
|
px = Image.new('L', (size, 1), 0).load()
|
|
for i in range(size):
|
|
# pixels can contain garbage if image is released
|
|
self.assertEqual(px[i, 0], 0)
|
|
|
|
def test_p_putpixel_rgb_rgba(self):
|
|
for color in [(255, 0, 0), (255, 0, 0, 255)]:
|
|
im = Image.new("P", (1, 1), 0)
|
|
access = PyAccess.new(im, False)
|
|
access.putpixel((0, 0), color)
|
|
self.assertEqual(im.convert("RGB").getpixel((0, 0)), (255, 0, 0))
|
|
|
|
|
|
class TestEmbeddable(unittest.TestCase):
|
|
@unittest.skipIf(not sys.platform.startswith('win32') or
|
|
sys.version_info[:2] == (3, 4) or
|
|
on_appveyor(), # failing on appveyor when run from
|
|
# subprocess, not from shell
|
|
"requires Python 2.7 or >=3.5 for Windows")
|
|
def test_embeddable(self):
|
|
import subprocess
|
|
import ctypes
|
|
from distutils import ccompiler, sysconfig
|
|
|
|
with open('embed_pil.c', 'w') as fh:
|
|
fh.write("""
|
|
#include "Python.h"
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
char *home = "%s";
|
|
#if PY_MAJOR_VERSION >= 3
|
|
wchar_t *whome = Py_DecodeLocale(home, NULL);
|
|
Py_SetPythonHome(whome);
|
|
#else
|
|
Py_SetPythonHome(home);
|
|
#endif
|
|
|
|
Py_InitializeEx(0);
|
|
Py_DECREF(PyImport_ImportModule("PIL.Image"));
|
|
Py_Finalize();
|
|
|
|
Py_InitializeEx(0);
|
|
Py_DECREF(PyImport_ImportModule("PIL.Image"));
|
|
Py_Finalize();
|
|
|
|
#if PY_MAJOR_VERSION >= 3
|
|
PyMem_RawFree(whome);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
""" % sys.prefix.replace('\\', '\\\\'))
|
|
|
|
compiler = ccompiler.new_compiler()
|
|
compiler.add_include_dir(sysconfig.get_python_inc())
|
|
|
|
libdir = (sysconfig.get_config_var('LIBDIR') or
|
|
sysconfig.get_python_inc().replace('include', 'libs'))
|
|
print(libdir)
|
|
compiler.add_library_dir(libdir)
|
|
objects = compiler.compile(['embed_pil.c'])
|
|
compiler.link_executable(objects, 'embed_pil')
|
|
|
|
env = os.environ.copy()
|
|
env["PATH"] = sys.prefix + ';' + env["PATH"]
|
|
|
|
# do not display the Windows Error Reporting dialog
|
|
ctypes.windll.kernel32.SetErrorMode(0x0002)
|
|
|
|
process = subprocess.Popen(['embed_pil.exe'], env=env)
|
|
process.communicate()
|
|
self.assertEqual(process.returncode, 0)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|