#!/usr/bin/env python3

# Copyright ©2015-2024 Evan Pretti.  All rights reserved.

# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:

#     1.  Redistributions of source code must retain the above copyright notice,
#         this list of conditions and the following disclaimer.
#     2.  Redistributions in binary form must reproduce the above copyright
#         notice, this list of conditions and the following disclaimer in the
#         documentation and/or other materials provided with the distribution.

# This software is provided by the author and contributors "as is" and any
# express or implied warranties, including, but not limited to, the implied
# warranties of merchantability and fitness for a particular purpose are
# disclaimed.  In no event shall the author or contributors be liable for any
# direct, indirect, incidental, special, exemplary, or consequential damages
# (including, but not limited to, procurement of substitute goods or services;
# loss of use, data, or profits; or business interruption) however caused and on
# any theory of liability, whether in contract, strict liability, or tort
# (including negligence or otherwise) arising in any way out of the use of this
# software, even if advised of the possibility of such damage.

try:
    import sys
    import struct
    import PIL.Image
    file = open(sys.argv[1], "rb")
    width, height = struct.unpack("@QQ", file.read(16))
    image = PIL.Image.frombuffer("RGBA", (width, height), file.read(width * height * 4), "raw", "RGBA", 0, 1)
    image.show()
except Exception as exception:
    print("An error has occurred ({}):".format(type(exception).__name__))
    print("{}".format(exception))