import sys from helper import unittest, PillowTestCase from PIL import Image X = 255 class TestLibPack(PillowTestCase): def assert_pack(self, mode, rawmode, data, *pixels): """ data - either raw bytes with data or just number of bytes in rawmode. """ im = Image.new(mode, (len(pixels), 1)) for x, pixel in enumerate(pixels): im.putpixel((x, 0), pixel) if isinstance(data, int): data_len = data * len(pixels) data = bytes(bytearray(range(1, data_len + 1))) self.assertEqual(data, im.tobytes("raw", rawmode)) def test_1(self): self.assert_pack("1", "1", b'\x01', 0, 0, 0, 0, 0, 0, 0, X) self.assert_pack("1", "1;I", b'\x01', X, X, X, X, X, X, X, 0) self.assert_pack("1", "1;R", b'\x01', X, 0, 0, 0, 0, 0, 0, 0) self.assert_pack("1", "1;IR", b'\x01', 0, X, X, X, X, X, X, X) self.assert_pack("1", "1", b'\xaa', X, 0, X, 0, X, 0, X, 0) self.assert_pack("1", "1;I", b'\xaa', 0, X, 0, X, 0, X, 0, X) self.assert_pack("1", "1;R", b'\xaa', 0, X, 0, X, 0, X, 0, X) self.assert_pack("1", "1;IR", b'\xaa', X, 0, X, 0, X, 0, X, 0) self.assert_pack( "1", "L", b'\xff\x00\x00\xff\x00\x00', X, 0, 0, X, 0, 0) def test_L(self): self.assert_pack("L", "L", 1, 1, 2, 3, 4) self.assert_pack("L", "L;16", b'\x00\xc6\x00\xaf', 198, 175) self.assert_pack("L", "L;16B", b'\xc6\x00\xaf\x00', 198, 175) def test_LA(self): self.assert_pack("LA", "LA", 2, (1, 2), (3, 4), (5, 6)) self.assert_pack("LA", "LA;L", 2, (1, 4), (2, 5), (3, 6)) def test_P(self): self.assert_pack("P", "P;1", b'\xe4', 1, 1, 1, 0, 0, 255, 0, 0) self.assert_pack("P", "P;2", b'\xe4', 3, 2, 1, 0) self.assert_pack("P", "P;4", b'\x02\xef', 0, 2, 14, 15) self.assert_pack("P", "P", 1, 1, 2, 3, 4) def test_PA(self): self.assert_pack("PA", "PA", 2, (1, 2), (3, 4), (5, 6)) self.assert_pack("PA", "PA;L", 2, (1, 4), (2, 5), (3, 6)) def test_RGB(self): self.assert_pack("RGB", "RGB", 3, (1, 2, 3), (4, 5, 6), (7, 8, 9)) self.assert_pack( "RGB", "RGBX", b'\x01\x02\x03\xff\x05\x06\x07\xff', (1, 2, 3), (5, 6, 7)) self.assert_pack( "RGB", "XRGB", b'\x00\x02\x03\x04\x00\x06\x07\x08', (2, 3, 4), (6, 7, 8)) self.assert_pack("RGB", "BGR", 3, (3, 2, 1), (6, 5, 4), (9, 8, 7)) self.assert_pack( "RGB", "BGRX", b'\x01\x02\x03\x00\x05\x06\x07\x00', (3, 2, 1), (7, 6, 5)) self.assert_pack( "RGB", "XBGR", b'\x00\x02\x03\x04\x00\x06\x07\x08', (4, 3, 2), (8, 7, 6)) self.assert_pack("RGB", "RGB;L", 3, (1, 4, 7), (2, 5, 8), (3, 6, 9)) self.assert_pack("RGB", "R", 1, (1, 9, 9), (2, 9, 9), (3, 9, 9)) self.assert_pack("RGB", "G", 1, (9, 1, 9), (9, 2, 9), (9, 3, 9)) self.assert_pack("RGB", "B", 1, (9, 9, 1), (9, 9, 2), (9, 9, 3)) def test_RGBA(self): self.assert_pack( "RGBA", "RGBA", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)) self.assert_pack( "RGBA", "RGBA;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)) self.assert_pack( "RGBA", "RGB", 3, (1, 2, 3, 14), (4, 5, 6, 15), (7, 8, 9, 16)) self.assert_pack( "RGBA", "BGR", 3, (3, 2, 1, 14), (6, 5, 4, 15), (9, 8, 7, 16)) self.assert_pack( "RGBA", "BGRA", 4, (3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12)) self.assert_pack( "RGBA", "ABGR", 4, (4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9)) self.assert_pack( "RGBA", "BGRa", 4, (191, 127, 63, 4), (223, 191, 159, 8), (233, 212, 191, 12)) self.assert_pack( "RGBA", "R", 1, (1, 0, 8, 9), (2, 0, 8, 9), (3, 0, 8, 0)) self.assert_pack( "RGBA", "G", 1, (6, 1, 8, 9), (6, 2, 8, 9), (6, 3, 8, 9)) self.assert_pack( "RGBA", "B", 1, (6, 7, 1, 9), (6, 7, 2, 0), (6, 7, 3, 9)) self.assert_pack( "RGBA", "A", 1, (6, 7, 0, 1), (6, 7, 0, 2), (0, 7, 0, 3)) def test_RGBa(self): self.assert_pack( "RGBa", "RGBa", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)) self.assert_pack( "RGBa", "BGRa", 4, (3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12)) self.assert_pack( "RGBa", "aBGR", 4, (4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9)) def test_RGBX(self): self.assert_pack( "RGBX", "RGBX", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)) self.assert_pack( "RGBX", "RGBX;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)) self.assert_pack( "RGBX", "RGB", 3, (1, 2, 3, X), (4, 5, 6, X), (7, 8, 9, X)) self.assert_pack( "RGBX", "BGR", 3, (3, 2, 1, X), (6, 5, 4, X), (9, 8, 7, X)) self.assert_pack( "RGBX", "BGRX", b'\x01\x02\x03\x00\x05\x06\x07\x00\t\n\x0b\x00', (3, 2, 1, X), (7, 6, 5, X), (11, 10, 9, X)) self.assert_pack( "RGBX", "XBGR", b'\x00\x02\x03\x04\x00\x06\x07\x08\x00\n\x0b\x0c', (4, 3, 2, X), (8, 7, 6, X), (12, 11, 10, X)) self.assert_pack("RGBX", "R", 1, (1, 0, 8, 9), (2, 0, 8, 9), (3, 0, 8, 0)) self.assert_pack("RGBX", "G", 1, (6, 1, 8, 9), (6, 2, 8, 9), (6, 3, 8, 9)) self.assert_pack("RGBX", "B", 1, (6, 7, 1, 9), (6, 7, 2, 0), (6, 7, 3, 9)) self.assert_pack("RGBX", "X", 1, (6, 7, 0, 1), (6, 7, 0, 2), (0, 7, 0, 3)) def test_CMYK(self): self.assert_pack("CMYK", "CMYK", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)) self.assert_pack( "CMYK", "CMYK;I", 4, (254, 253, 252, 251), (250, 249, 248, 247), (246, 245, 244, 243)) self.assert_pack( "CMYK", "CMYK;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)) self.assert_pack("CMYK", "K", 1, (6, 7, 0, 1), (6, 7, 0, 2), (0, 7, 0, 3)) def test_YCbCr(self): self.assert_pack("YCbCr", "YCbCr", 3, (1, 2, 3), (4, 5, 6), (7, 8, 9)) self.assert_pack("YCbCr", "YCbCr;L", 3, (1, 4, 7), (2, 5, 8), (3, 6, 9)) self.assert_pack( "YCbCr", "YCbCrX", b'\x01\x02\x03\xff\x05\x06\x07\xff\t\n\x0b\xff', (1, 2, 3), (5, 6, 7), (9, 10, 11)) self.assert_pack( "YCbCr", "YCbCrK", b'\x01\x02\x03\xff\x05\x06\x07\xff\t\n\x0b\xff', (1, 2, 3), (5, 6, 7), (9, 10, 11)) self.assert_pack("YCbCr", "Y", 1, (1, 0, 8, 9), (2, 0, 8, 9), (3, 0, 8, 0)) self.assert_pack("YCbCr", "Cb", 1, (6, 1, 8, 9), (6, 2, 8, 9), (6, 3, 8, 9)) self.assert_pack("YCbCr", "Cr", 1, (6, 7, 1, 9), (6, 7, 2, 0), (6, 7, 3, 9)) def test_LAB(self): self.assert_pack( "LAB", "LAB", 3, (1, 130, 131), (4, 133, 134), (7, 136, 137)) self.assert_pack("LAB", "L", 1, (1, 9, 9), (2, 9, 9), (3, 9, 9)) self.assert_pack("LAB", "A", 1, (9, 1, 9), (9, 2, 9), (9, 3, 9)) self.assert_pack("LAB", "B", 1, (9, 9, 1), (9, 9, 2), (9, 9, 3)) def test_HSV(self): self.assert_pack("HSV", "HSV", 3, (1, 2, 3), (4, 5, 6), (7, 8, 9)) self.assert_pack("HSV", "H", 1, (1, 9, 9), (2, 9, 9), (3, 9, 9)) self.assert_pack("HSV", "S", 1, (9, 1, 9), (9, 2, 9), (9, 3, 9)) self.assert_pack("HSV", "V", 1, (9, 9, 1), (9, 9, 2), (9, 9, 3)) def test_I(self): self.assert_pack("I", "I;16B", 2, 0x0102, 0x0304) self.assert_pack( "I", "I;32S", b'\x83\x00\x00\x01\x01\x00\x00\x83', 0x01000083, -2097151999) if sys.byteorder == 'little': self.assert_pack("I", "I", 4, 0x04030201, 0x08070605) self.assert_pack( "I", "I;32NS", b'\x83\x00\x00\x01\x01\x00\x00\x83', 0x01000083, -2097151999) else: self.assert_pack("I", "I", 4, 0x01020304, 0x05060708) self.assert_pack( "I", "I;32NS", b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097151999, 0x01000083) def test_F_float(self): self.assert_pack( "F", "F;32F", 4, 1.539989614439558e-36, 4.063216068939723e-34) if sys.byteorder == 'little': self.assert_pack( "F", "F", 4, 1.539989614439558e-36, 4.063216068939723e-34) self.assert_pack( "F", "F;32NF", 4, 1.539989614439558e-36, 4.063216068939723e-34) else: self.assert_pack( "F", "F", 4, 2.387939260590663e-38, 6.301941157072183e-36) self.assert_pack( "F", "F;32NF", 4, 2.387939260590663e-38, 6.301941157072183e-36) class TestLibUnpack(PillowTestCase): def assert_unpack(self, mode, rawmode, data, *pixels): """ data - either raw bytes with data or just number of bytes in rawmode. """ if isinstance(data, int): data_len = data * len(pixels) data = bytes(bytearray(range(1, data_len + 1))) im = Image.frombytes(mode, (len(pixels), 1), data, "raw", rawmode, 0, 1) for x, pixel in enumerate(pixels): self.assertEqual(pixel, im.getpixel((x, 0))) def test_1(self): self.assert_unpack("1", "1", b'\x01', 0, 0, 0, 0, 0, 0, 0, X) self.assert_unpack("1", "1;I", b'\x01', X, X, X, X, X, X, X, 0) self.assert_unpack("1", "1;R", b'\x01', X, 0, 0, 0, 0, 0, 0, 0) self.assert_unpack("1", "1;IR", b'\x01', 0, X, X, X, X, X, X, X) self.assert_unpack("1", "1", b'\xaa', X, 0, X, 0, X, 0, X, 0) self.assert_unpack("1", "1;I", b'\xaa', 0, X, 0, X, 0, X, 0, X) self.assert_unpack("1", "1;R", b'\xaa', 0, X, 0, X, 0, X, 0, X) self.assert_unpack("1", "1;IR", b'\xaa', X, 0, X, 0, X, 0, X, 0) self.assert_unpack("1", "1;8", b'\x00\x01\x02\xff', 0, X, X, X) def test_L(self): self.assert_unpack("L", "L;2", b'\xe4', 255, 170, 85, 0) self.assert_unpack("L", "L;2I", b'\xe4', 0, 85, 170, 255) self.assert_unpack("L", "L;2R", b'\xe4', 0, 170, 85, 255) self.assert_unpack("L", "L;2IR", b'\xe4', 255, 85, 170, 0) self.assert_unpack("L", "L;4", b'\x02\xef', 0, 34, 238, 255) self.assert_unpack("L", "L;4I", b'\x02\xef', 255, 221, 17, 0) self.assert_unpack("L", "L;4R", b'\x02\xef', 68, 0, 255, 119) self.assert_unpack("L", "L;4IR", b'\x02\xef', 187, 255, 0, 136) self.assert_unpack("L", "L", 1, 1, 2, 3, 4) self.assert_unpack("L", "L;I", 1, 254, 253, 252, 251) self.assert_unpack("L", "L;R", 1, 128, 64, 192, 32) self.assert_unpack("L", "L;16", 2, 2, 4, 6, 8) self.assert_unpack("L", "L;16B", 2, 1, 3, 5, 7) self.assert_unpack("L", "L;16", b'\x00\xc6\x00\xaf', 198, 175) self.assert_unpack("L", "L;16B", b'\xc6\x00\xaf\x00', 198, 175) def test_LA(self): self.assert_unpack("LA", "LA", 2, (1, 2), (3, 4), (5, 6)) self.assert_unpack("LA", "LA;L", 2, (1, 4), (2, 5), (3, 6)) def test_P(self): self.assert_unpack("P", "P;1", b'\xe4', 1, 1, 1, 0, 0, 1, 0, 0) self.assert_unpack("P", "P;2", b'\xe4', 3, 2, 1, 0) # erroneous? # self.assert_unpack("P", "P;2L", b'\xe4', 1, 1, 1, 0) self.assert_unpack("P", "P;4", b'\x02\xef', 0, 2, 14, 15) # erroneous? # self.assert_unpack("P", "P;4L", b'\x02\xef', 2, 10, 10, 0) self.assert_unpack("P", "P", 1, 1, 2, 3, 4) self.assert_unpack("P", "P;R", 1, 128, 64, 192, 32) def test_PA(self): self.assert_unpack("PA", "PA", 2, (1, 2), (3, 4), (5, 6)) self.assert_unpack("PA", "PA;L", 2, (1, 4), (2, 5), (3, 6)) def test_RGB(self): self.assert_unpack("RGB", "RGB", 3, (1, 2, 3), (4, 5, 6), (7, 8, 9)) self.assert_unpack("RGB", "RGB;L", 3, (1, 4, 7), (2, 5, 8), (3, 6, 9)) self.assert_unpack("RGB", "RGB;R", 3, (128, 64, 192), (32, 160, 96)) self.assert_unpack("RGB", "RGB;16L", 6, (2, 4, 6), (8, 10, 12)) self.assert_unpack("RGB", "RGB;16B", 6, (1, 3, 5), (7, 9, 11)) self.assert_unpack("RGB", "BGR", 3, (3, 2, 1), (6, 5, 4), (9, 8, 7)) self.assert_unpack("RGB", "RGB;15", 2, (8, 131, 0), (24, 0, 8)) self.assert_unpack("RGB", "BGR;15", 2, (0, 131, 8), (8, 0, 24)) self.assert_unpack("RGB", "RGB;16", 2, (8, 64, 0), (24, 129, 0)) self.assert_unpack("RGB", "BGR;16", 2, (0, 64, 8), (0, 129, 24)) self.assert_unpack("RGB", "RGB;4B", 2, (17, 0, 34), (51, 0, 68)) self.assert_unpack("RGB", "RGBX", 4, (1, 2, 3), (5, 6, 7), (9, 10, 11)) self.assert_unpack("RGB", "RGBX;L", 4, (1, 4, 7), (2, 5, 8), (3, 6, 9)) self.assert_unpack("RGB", "BGRX", 4, (3, 2, 1), (7, 6, 5), (11, 10, 9)) self.assert_unpack( "RGB", "XRGB", 4, (2, 3, 4), (6, 7, 8), (10, 11, 12)) self.assert_unpack( "RGB", "XBGR", 4, (4, 3, 2), (8, 7, 6), (12, 11, 10)) self.assert_unpack( "RGB", "YCC;P", b'D]\x9c\x82\x1a\x91\xfaOC\xe7J\x12', # random data (127, 102, 0), (192, 227, 0), (213, 255, 170), (98, 255, 133)) self.assert_unpack("RGB", "R", 1, (1, 0, 0), (2, 0, 0), (3, 0, 0)) self.assert_unpack("RGB", "G", 1, (0, 1, 0), (0, 2, 0), (0, 3, 0)) self.assert_unpack("RGB", "B", 1, (0, 0, 1), (0, 0, 2), (0, 0, 3)) def test_RGBA(self): self.assert_unpack( "RGBA", "LA", 2, (1, 1, 1, 2), (3, 3, 3, 4), (5, 5, 5, 6)) self.assert_unpack( "RGBA", "LA;16B", 4, (1, 1, 1, 3), (5, 5, 5, 7), (9, 9, 9, 11)) self.assert_unpack( "RGBA", "RGBA", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)) self.assert_unpack( "RGBA", "RGBAX", 5, (1, 2, 3, 4), (6, 7, 8, 9), (11, 12, 13, 14)) self.assert_unpack( "RGBA", "RGBAXX", 6, (1, 2, 3, 4), (7, 8, 9, 10), (13, 14, 15, 16)) self.assert_unpack( "RGBA", "RGBa", 4, (63, 127, 191, 4), (159, 191, 223, 8), (191, 212, 233, 12)) self.assert_unpack( "RGBA", "RGBa", b'\x01\x02\x03\x00\x10\x20\x30\x7f\x10\x20\x30\xff', (0, 0, 0, 0), (32, 64, 96, 127), (16, 32, 48, 255)) self.assert_unpack( "RGBA", "RGBaX", b'\x01\x02\x03\x00-\x10\x20\x30\x7f-\x10\x20\x30\xff-', (0, 0, 0, 0), (32, 64, 96, 127), (16, 32, 48, 255)) self.assert_unpack( "RGBA", "RGBaXX", b'\x01\x02\x03\x00==\x10\x20\x30\x7f!!\x10\x20\x30\xff??', (0, 0, 0, 0), (32, 64, 96, 127), (16, 32, 48, 255)) self.assert_unpack( "RGBA", "RGBa;16L", 8, (63, 127, 191, 8), (159, 191, 223, 16), (191, 212, 233, 24)) self.assert_unpack( "RGBA", "RGBa;16L", b'\x88\x01\x88\x02\x88\x03\x88\x00' b'\x88\x10\x88\x20\x88\x30\x88\xff', (0, 0, 0, 0), (16, 32, 48, 255)) self.assert_unpack( "RGBA", "RGBa;16B", 8, (36, 109, 182, 7), (153, 187, 221, 15), (188, 210, 232, 23)) self.assert_unpack( "RGBA", "RGBa;16B", b'\x01\x88\x02\x88\x03\x88\x00\x88' b'\x10\x88\x20\x88\x30\x88\xff\x88', (0, 0, 0, 0), (16, 32, 48, 255)) self.assert_unpack( "RGBA", "BGRa", 4, (191, 127, 63, 4), (223, 191, 159, 8), (233, 212, 191, 12)) self.assert_unpack( "RGBA", "BGRa", b'\x01\x02\x03\x00\x10\x20\x30\xff', (0, 0, 0, 0), (48, 32, 16, 255)) self.assert_unpack( "RGBA", "RGBA;I", 4, (254, 253, 252, 4), (250, 249, 248, 8), (246, 245, 244, 12)) self.assert_unpack( "RGBA", "RGBA;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)) self.assert_unpack("RGBA", "RGBA;15", 2, (8, 131, 0, 0), (24, 0, 8, 0)) self.assert_unpack("RGBA", "BGRA;15", 2, (0, 131, 8, 0), (8, 0, 24, 0)) self.assert_unpack( "RGBA", "RGBA;4B", 2, (17, 0, 34, 0), (51, 0, 68, 0)) self.assert_unpack( "RGBA", "RGBA;16L", 8, (2, 4, 6, 8), (10, 12, 14, 16)) self.assert_unpack( "RGBA", "RGBA;16B", 8, (1, 3, 5, 7), (9, 11, 13, 15)) self.assert_unpack( "RGBA", "BGRA", 4, (3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12)) self.assert_unpack( "RGBA", "ARGB", 4, (2, 3, 4, 1), (6, 7, 8, 5), (10, 11, 12, 9)) self.assert_unpack( "RGBA", "ABGR", 4, (4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9)) self.assert_unpack( "RGBA", "YCCA;P", b']bE\x04\xdd\xbej\xed57T\xce\xac\xce:\x11', # random data (0, 161, 0, 4), (255, 255, 255, 237), (27, 158, 0, 206), (0, 118, 0, 17)) self.assert_unpack( "RGBA", "R", 1, (1, 0, 0, 0), (2, 0, 0, 0), (3, 0, 0, 0)) self.assert_unpack( "RGBA", "G", 1, (0, 1, 0, 0), (0, 2, 0, 0), (0, 3, 0, 0)) self.assert_unpack( "RGBA", "B", 1, (0, 0, 1, 0), (0, 0, 2, 0), (0, 0, 3, 0)) self.assert_unpack( "RGBA", "A", 1, (0, 0, 0, 1), (0, 0, 0, 2), (0, 0, 0, 3)) def test_RGBa(self): self.assert_unpack( "RGBa", "RGBa", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)) self.assert_unpack( "RGBa", "BGRa", 4, (3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12)) self.assert_unpack( "RGBa", "aRGB", 4, (2, 3, 4, 1), (6, 7, 8, 5), (10, 11, 12, 9)) self.assert_unpack( "RGBa", "aBGR", 4, (4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9)) def test_RGBX(self): self.assert_unpack("RGBX", "RGB", 3, (1, 2, 3, X), (4, 5, 6, X), (7, 8, 9, X)) self.assert_unpack("RGBX", "RGB;L", 3, (1, 4, 7, X), (2, 5, 8, X), (3, 6, 9, X)) self.assert_unpack("RGBX", "RGB;16B", 6, (1, 3, 5, X), (7, 9, 11, X)) self.assert_unpack("RGBX", "BGR", 3, (3, 2, 1, X), (6, 5, 4, X), (9, 8, 7, X)) self.assert_unpack("RGBX", "RGB;15", 2, (8, 131, 0, X), (24, 0, 8, X)) self.assert_unpack("RGBX", "BGR;15", 2, (0, 131, 8, X), (8, 0, 24, X)) self.assert_unpack("RGBX", "RGB;4B", 2, (17, 0, 34, X), (51, 0, 68, X)) self.assert_unpack( "RGBX", "RGBX", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)) self.assert_unpack( "RGBX", "RGBXX", 5, (1, 2, 3, 4), (6, 7, 8, 9), (11, 12, 13, 14)) self.assert_unpack( "RGBX", "RGBXXX", 6, (1, 2, 3, 4), (7, 8, 9, 10), (13, 14, 15, 16)) self.assert_unpack( "RGBX", "RGBX;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)) self.assert_unpack("RGBX", "RGBX;16L", 8, (2, 4, 6, 8), (10, 12, 14, 16)) self.assert_unpack("RGBX", "RGBX;16B", 8, (1, 3, 5, 7), (9, 11, 13, 15)) self.assert_unpack("RGBX", "BGRX", 4, (3, 2, 1, X), (7, 6, 5, X), (11, 10, 9, X)) self.assert_unpack("RGBX", "XRGB", 4, (2, 3, 4, X), (6, 7, 8, X), (10, 11, 12, X)) self.assert_unpack("RGBX", "XBGR", 4, (4, 3, 2, X), (8, 7, 6, X), (12, 11, 10, X)) self.assert_unpack( "RGBX", "YCC;P", b'D]\x9c\x82\x1a\x91\xfaOC\xe7J\x12', # random data (127, 102, 0, X), (192, 227, 0, X), (213, 255, 170, X), (98, 255, 133, X)) self.assert_unpack("RGBX", "R", 1, (1, 0, 0, 0), (2, 0, 0, 0), (3, 0, 0, 0)) self.assert_unpack("RGBX", "G", 1, (0, 1, 0, 0), (0, 2, 0, 0), (0, 3, 0, 0)) self.assert_unpack("RGBX", "B", 1, (0, 0, 1, 0), (0, 0, 2, 0), (0, 0, 3, 0)) self.assert_unpack("RGBX", "X", 1, (0, 0, 0, 1), (0, 0, 0, 2), (0, 0, 0, 3)) def test_CMYK(self): self.assert_unpack( "CMYK", "CMYK", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)) self.assert_unpack( "CMYK", "CMYKX", 5, (1, 2, 3, 4), (6, 7, 8, 9), (11, 12, 13, 14)) self.assert_unpack( "CMYK", "CMYKXX", 6, (1, 2, 3, 4), (7, 8, 9, 10), (13, 14, 15, 16)) self.assert_unpack( "CMYK", "CMYK;I", 4, (254, 253, 252, 251), (250, 249, 248, 247), (246, 245, 244, 243)) self.assert_unpack( "CMYK", "CMYK;L", 4, (1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)) self.assert_unpack("CMYK", "C", 1, (1, 0, 0, 0), (2, 0, 0, 0), (3, 0, 0, 0)) self.assert_unpack("CMYK", "M", 1, (0, 1, 0, 0), (0, 2, 0, 0), (0, 3, 0, 0)) self.assert_unpack("CMYK", "Y", 1, (0, 0, 1, 0), (0, 0, 2, 0), (0, 0, 3, 0)) self.assert_unpack("CMYK", "K", 1, (0, 0, 0, 1), (0, 0, 0, 2), (0, 0, 0, 3)) self.assert_unpack( "CMYK", "C;I", 1, (254, 0, 0, 0), (253, 0, 0, 0), (252, 0, 0, 0)) self.assert_unpack( "CMYK", "M;I", 1, (0, 254, 0, 0), (0, 253, 0, 0), (0, 252, 0, 0)) self.assert_unpack( "CMYK", "Y;I", 1, (0, 0, 254, 0), (0, 0, 253, 0), (0, 0, 252, 0)) self.assert_unpack( "CMYK", "K;I", 1, (0, 0, 0, 254), (0, 0, 0, 253), (0, 0, 0, 252)) def test_YCbCr(self): self.assert_unpack( "YCbCr", "YCbCr", 3, (1, 2, 3), (4, 5, 6), (7, 8, 9)) self.assert_unpack( "YCbCr", "YCbCr;L", 3, (1, 4, 7), (2, 5, 8), (3, 6, 9)) self.assert_unpack( "YCbCr", "YCbCrK", 4, (1, 2, 3), (5, 6, 7), (9, 10, 11)) self.assert_unpack( "YCbCr", "YCbCrX", 4, (1, 2, 3), (5, 6, 7), (9, 10, 11)) def test_LAB(self): self.assert_unpack( "LAB", "LAB", 3, (1, 130, 131), (4, 133, 134), (7, 136, 137)) self.assert_unpack("LAB", "L", 1, (1, 0, 0), (2, 0, 0), (3, 0, 0)) self.assert_unpack("LAB", "A", 1, (0, 1, 0), (0, 2, 0), (0, 3, 0)) self.assert_unpack("LAB", "B", 1, (0, 0, 1), (0, 0, 2), (0, 0, 3)) def test_HSV(self): self.assert_unpack("HSV", "HSV", 3, (1, 2, 3), (4, 5, 6), (7, 8, 9)) self.assert_unpack("HSV", "H", 1, (1, 0, 0), (2, 0, 0), (3, 0, 0)) self.assert_unpack("HSV", "S", 1, (0, 1, 0), (0, 2, 0), (0, 3, 0)) self.assert_unpack("HSV", "V", 1, (0, 0, 1), (0, 0, 2), (0, 0, 3)) def test_I(self): self.assert_unpack("I", "I;8", 1, 0x01, 0x02, 0x03, 0x04) self.assert_unpack("I", "I;8S", b'\x01\x83', 1, -125) self.assert_unpack("I", "I;16", 2, 0x0201, 0x0403) self.assert_unpack("I", "I;16S", b'\x83\x01\x01\x83', 0x0183, -31999) self.assert_unpack("I", "I;16B", 2, 0x0102, 0x0304) self.assert_unpack("I", "I;16BS", b'\x83\x01\x01\x83', -31999, 0x0183) self.assert_unpack("I", "I;32", 4, 0x04030201, 0x08070605) self.assert_unpack( "I", "I;32S", b'\x83\x00\x00\x01\x01\x00\x00\x83', 0x01000083, -2097151999) self.assert_unpack("I", "I;32B", 4, 0x01020304, 0x05060708) self.assert_unpack( "I", "I;32BS", b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097151999, 0x01000083) if sys.byteorder == 'little': self.assert_unpack("I", "I", 4, 0x04030201, 0x08070605) self.assert_unpack("I", "I;16N", 2, 0x0201, 0x0403) self.assert_unpack("I", "I;16NS", b'\x83\x01\x01\x83', 0x0183, -31999) self.assert_unpack("I", "I;32N", 4, 0x04030201, 0x08070605) self.assert_unpack( "I", "I;32NS", b'\x83\x00\x00\x01\x01\x00\x00\x83', 0x01000083, -2097151999) else: self.assert_unpack("I", "I", 4, 0x01020304, 0x05060708) self.assert_unpack("I", "I;16N", 2, 0x0102, 0x0304) self.assert_unpack("I", "I;16NS", b'\x83\x01\x01\x83', -31999, 0x0183) self.assert_unpack("I", "I;32N", 4, 0x01020304, 0x05060708) self.assert_unpack( "I", "I;32NS", b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097151999, 0x01000083) def test_F_int(self): self.assert_unpack("F", "F;8", 1, 0x01, 0x02, 0x03, 0x04) self.assert_unpack("F", "F;8S", b'\x01\x83', 1, -125) self.assert_unpack("F", "F;16", 2, 0x0201, 0x0403) self.assert_unpack("F", "F;16S", b'\x83\x01\x01\x83', 0x0183, -31999) self.assert_unpack("F", "F;16B", 2, 0x0102, 0x0304) self.assert_unpack("F", "F;16BS", b'\x83\x01\x01\x83', -31999, 0x0183) self.assert_unpack("F", "F;32", 4, 67305984, 134678016) self.assert_unpack( "F", "F;32S", b'\x83\x00\x00\x01\x01\x00\x00\x83', 16777348, -2097152000) self.assert_unpack("F", "F;32B", 4, 0x01020304, 0x05060708) self.assert_unpack( "F", "F;32BS", b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097152000, 16777348) if sys.byteorder == 'little': self.assert_unpack("F", "F;16N", 2, 0x0201, 0x0403) self.assert_unpack( "F", "F;16NS", b'\x83\x01\x01\x83', 0x0183, -31999) self.assert_unpack("F", "F;32N", 4, 67305984, 134678016) self.assert_unpack( "F", "F;32NS", b'\x83\x00\x00\x01\x01\x00\x00\x83', 16777348, -2097152000) else: self.assert_unpack("F", "F;16N", 2, 0x0102, 0x0304) self.assert_unpack( "F", "F;16NS", b'\x83\x01\x01\x83', -31999, 0x0183) self.assert_unpack("F", "F;32N", 4, 0x01020304, 0x05060708) self.assert_unpack( "F", "F;32NS", b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097152000, 16777348) def test_F_float(self): self.assert_unpack( "F", "F;32F", 4, 1.539989614439558e-36, 4.063216068939723e-34) self.assert_unpack( "F", "F;32BF", 4, 2.387939260590663e-38, 6.301941157072183e-36) self.assert_unpack( "F", "F;64F", b'333333\xc3?\x00\x00\x00\x00\x00J\x93\xc0', # by struct.pack 0.15000000596046448, -1234.5) self.assert_unpack( "F", "F;64BF", b'?\xc3333333\xc0\x93J\x00\x00\x00\x00\x00', # by struct.pack 0.15000000596046448, -1234.5) if sys.byteorder == 'little': self.assert_unpack( "F", "F", 4, 1.539989614439558e-36, 4.063216068939723e-34) self.assert_unpack( "F", "F;32NF", 4, 1.539989614439558e-36, 4.063216068939723e-34) self.assert_unpack( "F", "F;64NF", b'333333\xc3?\x00\x00\x00\x00\x00J\x93\xc0', 0.15000000596046448, -1234.5) else: self.assert_unpack( "F", "F", 4, 2.387939260590663e-38, 6.301941157072183e-36) self.assert_unpack( "F", "F;32NF", 4, 2.387939260590663e-38, 6.301941157072183e-36) self.assert_unpack( "F", "F;64NF", b'?\xc3333333\xc0\x93J\x00\x00\x00\x00\x00', 0.15000000596046448, -1234.5) def test_I16(self): self.assert_unpack("I;16", "I;16", 2, 0x0201, 0x0403, 0x0605) self.assert_unpack("I;16B", "I;16B", 2, 0x0102, 0x0304, 0x0506) self.assert_unpack("I;16L", "I;16L", 2, 0x0201, 0x0403, 0x0605) self.assert_unpack("I;16", "I;12", 2, 0x0010, 0x0203, 0x0040) if sys.byteorder == 'little': self.assert_unpack("I;16", "I;16N", 2, 0x0201, 0x0403, 0x0605) self.assert_unpack("I;16B", "I;16N", 2, 0x0201, 0x0403, 0x0605) self.assert_unpack("I;16L", "I;16N", 2, 0x0201, 0x0403, 0x0605) else: self.assert_unpack("I;16", "I;16N", 2, 0x0102, 0x0304, 0x0506) self.assert_unpack("I;16B", "I;16N", 2, 0x0102, 0x0304, 0x0506) self.assert_unpack("I;16L", "I;16N", 2, 0x0102, 0x0304, 0x0506) def test_value_error(self): self.assertRaises(ValueError, self.assert_unpack, "L", "L", 0, 0) self.assertRaises(ValueError, self.assert_unpack, "RGB", "RGB", 2, 0) self.assertRaises(ValueError, self.assert_unpack, "CMYK", "CMYK", 2, 0) if __name__ == '__main__': unittest.main()