mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-09-21 03:18:57 +03:00
415 lines
12 KiB
Python
415 lines
12 KiB
Python
import ctypes
|
|
import os
|
|
import subprocess
|
|
import sys
|
|
import sysconfig
|
|
|
|
import pytest
|
|
from setuptools.command.build_ext import new_compiler
|
|
|
|
from PIL import Image
|
|
|
|
from .helper import assert_image_equal, hopper, is_win32, on_ci
|
|
|
|
# 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:
|
|
import cffi
|
|
|
|
from PIL import PyAccess
|
|
except ImportError:
|
|
cffi = None
|
|
|
|
|
|
class AccessTest:
|
|
# initial value
|
|
_init_cffi_access = Image.USE_CFFI_ACCESS
|
|
_need_cffi_access = False
|
|
|
|
@classmethod
|
|
def setup_class(cls):
|
|
Image.USE_CFFI_ACCESS = cls._need_cffi_access
|
|
|
|
@classmethod
|
|
def teardown_class(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))
|
|
|
|
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))
|
|
|
|
assert not im2.readonly
|
|
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]
|
|
|
|
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
|
|
assert im1.getpixel((0, 0)) == im1.getpixel((-width, -height))
|
|
assert 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))
|
|
|
|
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))
|
|
|
|
assert not im2.readonly
|
|
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]
|
|
|
|
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)
|
|
assert (
|
|
im.getpixel((0, 0)) == c
|
|
), f"put/getpixel roundtrip failed for mode {mode}, color {c}"
|
|
|
|
# check putpixel negative index
|
|
im.putpixel((-1, -1), c)
|
|
assert (
|
|
im.getpixel((-1, -1)) == c
|
|
), f"put/getpixel roundtrip negative index failed for mode {mode}, color {c}"
|
|
|
|
# Check 0
|
|
im = Image.new(mode, (0, 0), None)
|
|
with pytest.raises(IndexError):
|
|
im.putpixel((0, 0), c)
|
|
with pytest.raises(IndexError):
|
|
im.getpixel((0, 0))
|
|
# Check 0 negative index
|
|
with pytest.raises(IndexError):
|
|
im.putpixel((-1, -1), c)
|
|
with pytest.raises(IndexError):
|
|
im.getpixel((-1, -1))
|
|
|
|
# check initial color
|
|
im = Image.new(mode, (1, 1), c)
|
|
assert (
|
|
im.getpixel((0, 0)) == c
|
|
), f"initial color failed for mode {mode}, color {c} "
|
|
# check initial color negative index
|
|
assert (
|
|
im.getpixel((-1, -1)) == c
|
|
), f"initial color failed with negative index for mode {mode}, color {c} "
|
|
|
|
# Check 0
|
|
im = Image.new(mode, (0, 0), c)
|
|
with pytest.raises(IndexError):
|
|
im.getpixel((0, 0))
|
|
# Check 0 negative index
|
|
with pytest.raises(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)
|
|
assert im.convert("RGB").getpixel((0, 0)) == (255, 0, 0)
|
|
|
|
|
|
@pytest.mark.skipif(cffi is None, reason="No CFFI")
|
|
class TestCffiPutPixel(TestImagePutPixel):
|
|
_need_cffi_access = True
|
|
|
|
|
|
@pytest.mark.skipif(cffi is None, reason="No CFFI")
|
|
class TestCffiGetPixel(TestImageGetPixel):
|
|
_need_cffi_access = True
|
|
|
|
|
|
@pytest.mark.skipif(cffi is None, reason="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):
|
|
assert access[(x, y)] == caccess[(x, y)]
|
|
|
|
# Access an out-of-range pixel
|
|
with pytest.raises(ValueError):
|
|
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
|
|
assert color == caccess[(x, y)]
|
|
|
|
# Attempt to set the value on a read-only image
|
|
access = PyAccess.new(im, True)
|
|
with pytest.raises(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):
|
|
assert PyAccess.new(hopper("BGR;15")) is None
|
|
|
|
# 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
|
|
assert 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)
|
|
assert im.convert("RGB").getpixel((0, 0)) == (255, 0, 0)
|
|
|
|
|
|
class TestImagePutPixelError(AccessTest):
|
|
IMAGE_MODES1 = ["L", "LA", "RGB", "RGBA"]
|
|
IMAGE_MODES2 = ["I", "I;16", "BGR;15"]
|
|
INVALID_TYPES1 = ["foo", 1.0, None]
|
|
INVALID_TYPES2 = [*INVALID_TYPES1, (10,)]
|
|
|
|
@pytest.mark.parametrize("mode", IMAGE_MODES1)
|
|
def test_putpixel_type_error1(self, mode):
|
|
im = hopper(mode)
|
|
for v in self.INVALID_TYPES1:
|
|
with pytest.raises(TypeError, match="color must be int or tuple"):
|
|
im.putpixel((0, 0), v)
|
|
|
|
@pytest.mark.parametrize("mode", IMAGE_MODES2)
|
|
def test_putpixel_type_error2(self, mode):
|
|
im = hopper(mode)
|
|
for v in self.INVALID_TYPES2:
|
|
with pytest.raises(TypeError, match="color must be int"):
|
|
im.putpixel((0, 0), v)
|
|
|
|
@pytest.mark.parametrize("mode", IMAGE_MODES1 + IMAGE_MODES2)
|
|
def test_putpixel_overflow_error(self, mode):
|
|
im = hopper(mode)
|
|
with pytest.raises(OverflowError):
|
|
im.putpixel((0, 0), 2 ** 80)
|
|
|
|
def test_putpixel_unrecognized_mode(self):
|
|
im = hopper("BGR;15")
|
|
with pytest.raises(ValueError, match="unrecognized image mode"):
|
|
im.putpixel((0, 0), 0)
|
|
|
|
|
|
class TestEmbeddable:
|
|
@pytest.mark.skipif(
|
|
not is_win32() or on_ci(),
|
|
reason="Failing on AppVeyor / GitHub Actions when run from subprocess, "
|
|
"not from shell",
|
|
)
|
|
def test_embeddable(self):
|
|
with open("embed_pil.c", "w") as fh:
|
|
fh.write(
|
|
"""
|
|
#include "Python.h"
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
char *home = "%s";
|
|
wchar_t *whome = Py_DecodeLocale(home, NULL);
|
|
Py_SetPythonHome(whome);
|
|
|
|
Py_InitializeEx(0);
|
|
Py_DECREF(PyImport_ImportModule("PIL.Image"));
|
|
Py_Finalize();
|
|
|
|
Py_InitializeEx(0);
|
|
Py_DECREF(PyImport_ImportModule("PIL.Image"));
|
|
Py_Finalize();
|
|
|
|
PyMem_RawFree(whome);
|
|
|
|
return 0;
|
|
}
|
|
"""
|
|
% sys.prefix.replace("\\", "\\\\")
|
|
)
|
|
|
|
compiler = new_compiler()
|
|
compiler.add_include_dir(sysconfig.get_config_var("INCLUDEPY"))
|
|
|
|
libdir = sysconfig.get_config_var("LIBDIR") or sysconfig.get_config_var(
|
|
"INCLUDEPY"
|
|
).replace("include", "libs")
|
|
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()
|
|
assert process.returncode == 0
|