mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-09-21 19:38:57 +03:00
159 lines
6.5 KiB
Python
159 lines
6.5 KiB
Python
from helper import unittest, PillowTestCase, py3
|
|
|
|
from PIL import Image
|
|
|
|
|
|
class TestLibPack(PillowTestCase):
|
|
|
|
def pack(self):
|
|
pass # not yet
|
|
|
|
def test_pack(self):
|
|
|
|
def pack(mode, rawmode, in_data=(1, 2, 3, 4)):
|
|
if len(mode) == 1:
|
|
im = Image.new(mode, (1, 1), in_data[0])
|
|
else:
|
|
im = Image.new(mode, (1, 1), in_data[:len(mode)])
|
|
|
|
if py3:
|
|
return list(im.tobytes("raw", rawmode))
|
|
else:
|
|
return [ord(c) for c in im.tobytes("raw", rawmode)]
|
|
|
|
order = 1 if Image._ENDIAN == '<' else -1
|
|
|
|
self.assertEqual(pack("1", "1"), [128])
|
|
self.assertEqual(pack("1", "1;I"), [0])
|
|
self.assertEqual(pack("1", "1;R"), [1])
|
|
self.assertEqual(pack("1", "1;IR"), [0])
|
|
|
|
self.assertEqual(pack("L", "L"), [1])
|
|
|
|
self.assertEqual(pack("I", "I"), [1, 0, 0, 0][::order])
|
|
|
|
self.assertEqual(pack("F", "F"), [0, 0, 128, 63][::order])
|
|
|
|
self.assertEqual(pack("LA", "LA"), [1, 2])
|
|
|
|
self.assertEqual(pack("RGB", "RGB"), [1, 2, 3])
|
|
self.assertEqual(pack("RGB", "RGB;L"), [1, 2, 3])
|
|
self.assertEqual(pack("RGB", "BGR"), [3, 2, 1])
|
|
self.assertEqual(pack("RGB", "RGBX"), [1, 2, 3, 255]) # 255?
|
|
self.assertEqual(pack("RGB", "BGRX"), [3, 2, 1, 0])
|
|
self.assertEqual(pack("RGB", "XRGB"), [0, 1, 2, 3])
|
|
self.assertEqual(pack("RGB", "XBGR"), [0, 3, 2, 1])
|
|
|
|
self.assertEqual(pack("RGBX", "RGBX"), [1, 2, 3, 4]) # 4->255?
|
|
|
|
self.assertEqual(pack("RGBA", "RGBA"), [1, 2, 3, 4])
|
|
self.assertEqual(pack("RGBA", "BGRa"), [0, 0, 0, 4])
|
|
self.assertEqual(pack("RGBA", "BGRa", in_data=(20, 30, 40, 50)), [8, 6, 4, 50])
|
|
|
|
self.assertEqual(pack("RGBa", "RGBa"), [1, 2, 3, 4])
|
|
self.assertEqual(pack("RGBa", "BGRa"), [3, 2, 1, 4])
|
|
self.assertEqual(pack("RGBa", "aBGR"), [4, 3, 2, 1])
|
|
|
|
self.assertEqual(pack("CMYK", "CMYK"), [1, 2, 3, 4])
|
|
self.assertEqual(pack("YCbCr", "YCbCr"), [1, 2, 3])
|
|
|
|
def test_unpack(self):
|
|
|
|
def unpack(mode, rawmode, bytes_):
|
|
im = None
|
|
|
|
if py3:
|
|
data = bytes(range(1, bytes_+1))
|
|
else:
|
|
data = ''.join(chr(i) for i in range(1, bytes_+1))
|
|
|
|
im = Image.frombytes(mode, (1, 1), data, "raw", rawmode, 0, 1)
|
|
|
|
return im.getpixel((0, 0))
|
|
|
|
def unpack_1(mode, rawmode, value):
|
|
assert mode == "1"
|
|
im = None
|
|
|
|
if py3:
|
|
im = Image.frombytes(
|
|
mode, (8, 1), bytes([value]), "raw", rawmode, 0, 1)
|
|
else:
|
|
im = Image.frombytes(
|
|
mode, (8, 1), chr(value), "raw", rawmode, 0, 1)
|
|
|
|
return tuple(im.getdata())
|
|
|
|
X = 255
|
|
|
|
self.assertEqual(unpack_1("1", "1", 1), (0, 0, 0, 0, 0, 0, 0, X))
|
|
self.assertEqual(unpack_1("1", "1;I", 1), (X, X, X, X, X, X, X, 0))
|
|
self.assertEqual(unpack_1("1", "1;R", 1), (X, 0, 0, 0, 0, 0, 0, 0))
|
|
self.assertEqual(unpack_1("1", "1;IR", 1), (0, X, X, X, X, X, X, X))
|
|
|
|
self.assertEqual(unpack_1("1", "1", 170), (X, 0, X, 0, X, 0, X, 0))
|
|
self.assertEqual(unpack_1("1", "1;I", 170), (0, X, 0, X, 0, X, 0, X))
|
|
self.assertEqual(unpack_1("1", "1;R", 170), (0, X, 0, X, 0, X, 0, X))
|
|
self.assertEqual(unpack_1("1", "1;IR", 170), (X, 0, X, 0, X, 0, X, 0))
|
|
|
|
self.assertEqual(unpack("L", "L;2", 1), 0)
|
|
self.assertEqual(unpack("L", "L;4", 1), 0)
|
|
self.assertEqual(unpack("L", "L", 1), 1)
|
|
self.assertEqual(unpack("L", "L;I", 1), 254)
|
|
self.assertEqual(unpack("L", "L;R", 1), 128)
|
|
self.assertEqual(unpack("L", "L;16", 2), 2) # little endian
|
|
self.assertEqual(unpack("L", "L;16B", 2), 1) # big endian
|
|
|
|
self.assertEqual(unpack("LA", "LA", 2), (1, 2))
|
|
self.assertEqual(unpack("LA", "LA;L", 2), (1, 2))
|
|
|
|
self.assertEqual(unpack("RGB", "RGB", 3), (1, 2, 3))
|
|
self.assertEqual(unpack("RGB", "RGB;L", 3), (1, 2, 3))
|
|
self.assertEqual(unpack("RGB", "RGB;R", 3), (128, 64, 192))
|
|
self.assertEqual(unpack("RGB", "RGB;16B", 6), (1, 3, 5)) # ?
|
|
self.assertEqual(unpack("RGB", "BGR", 3), (3, 2, 1))
|
|
self.assertEqual(unpack("RGB", "RGB;15", 2), (8, 131, 0))
|
|
self.assertEqual(unpack("RGB", "BGR;15", 2), (0, 131, 8))
|
|
self.assertEqual(unpack("RGB", "RGB;16", 2), (8, 64, 0))
|
|
self.assertEqual(unpack("RGB", "BGR;16", 2), (0, 64, 8))
|
|
self.assertEqual(unpack("RGB", "RGB;4B", 2), (17, 0, 34))
|
|
|
|
self.assertEqual(unpack("RGB", "RGBX", 4), (1, 2, 3))
|
|
self.assertEqual(unpack("RGB", "BGRX", 4), (3, 2, 1))
|
|
self.assertEqual(unpack("RGB", "XRGB", 4), (2, 3, 4))
|
|
self.assertEqual(unpack("RGB", "XBGR", 4), (4, 3, 2))
|
|
|
|
self.assertEqual(unpack("RGBA", "RGBA", 4), (1, 2, 3, 4))
|
|
self.assertEqual(unpack("RGBA", "RGBa", 4), (63, 127, 191, 4))
|
|
self.assertEqual(unpack("RGBA", "BGRA", 4), (3, 2, 1, 4))
|
|
self.assertEqual(unpack("RGBA", "BGRa", 4), (191, 127, 63, 4))
|
|
self.assertEqual(unpack("RGBA", "ARGB", 4), (2, 3, 4, 1))
|
|
self.assertEqual(unpack("RGBA", "ABGR", 4), (4, 3, 2, 1))
|
|
self.assertEqual(unpack("RGBA", "RGBA;15", 2), (8, 131, 0, 0))
|
|
self.assertEqual(unpack("RGBA", "BGRA;15", 2), (0, 131, 8, 0))
|
|
self.assertEqual(unpack("RGBA", "RGBA;4B", 2), (17, 0, 34, 0))
|
|
|
|
self.assertEqual(unpack("RGBa", "RGBa", 4), (1, 2, 3, 4))
|
|
self.assertEqual(unpack("RGBa", "BGRa", 4), (3, 2, 1, 4))
|
|
self.assertEqual(unpack("RGBa", "aRGB", 4), (2, 3, 4, 1))
|
|
self.assertEqual(unpack("RGBa", "aBGR", 4), (4, 3, 2, 1))
|
|
|
|
self.assertEqual(unpack("RGBX", "RGBX", 4), (1, 2, 3, 4)) # 4->255?
|
|
self.assertEqual(unpack("RGBX", "BGRX", 4), (3, 2, 1, 255))
|
|
self.assertEqual(unpack("RGBX", "XRGB", 4), (2, 3, 4, 255))
|
|
self.assertEqual(unpack("RGBX", "XBGR", 4), (4, 3, 2, 255))
|
|
self.assertEqual(unpack("RGBX", "RGB;15", 2), (8, 131, 0, 255))
|
|
self.assertEqual(unpack("RGBX", "BGR;15", 2), (0, 131, 8, 255))
|
|
self.assertEqual(unpack("RGBX", "RGB;4B", 2), (17, 0, 34, 255))
|
|
|
|
self.assertEqual(unpack("CMYK", "CMYK", 4), (1, 2, 3, 4))
|
|
self.assertEqual(unpack("CMYK", "CMYK;I", 4), (254, 253, 252, 251))
|
|
|
|
self.assertRaises(ValueError, lambda: unpack("L", "L", 0))
|
|
self.assertRaises(ValueError, lambda: unpack("RGB", "RGB", 2))
|
|
self.assertRaises(ValueError, lambda: unpack("CMYK", "CMYK", 2))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|