# Source code for PIL.PixarImagePlugin

    #
    # The Python Imaging Library.
    # $Id$
    #
    # PIXAR raster support for PIL
    #
    # history:
    #       97-01-29 fl     Created
    #
    # notes:
    #       This is incomplete; it is based on a few samples created with
    #       Photoshop 2.5 and 3.0, and a summary description provided by
    #       Greg Coats <gcoats@labiris.er.usgs.gov>.  Hopefully, "L" and
    #       "RGBA" support will be added in future versions.
    #
    # Copyright (c) Secret Labs AB 1997.
    # Copyright (c) Fredrik Lundh 1997.
    #
    # See the README file for information on usage and redistribution.
    #
    from __future__ import annotations

    from . import Image, ImageFile
    from ._binary import i16le as i16

    #
    # helpers

    def _accept(prefix):
        return prefix[:4] == b"\200\350\000\000"

    ##
    # Image plugin for PIXAR raster images.

    class PixarImageFile(ImageFile.ImageFile):
        format = "PIXAR"
        format_description = "PIXAR raster image"

        def _open(self):
            # assuming a 4-byte magic label
            s = self.fp.read(4)
            if not _accept(s):
                msg = "not a PIXAR file"
                raise SyntaxError(msg)

            # read rest of header
            s = s + self.fp.read(508)

            self._size = i16(s, 418), i16(s, 416)

            # get channel/depth descriptions
            mode = i16(s, 424), i16(s, 426)

            if mode == (14, 2):
                self._mode = "RGB"
            # FIXME: to be continued...

            # create tile descriptor (assuming "dumped")
            self.tile = [("raw", (0, 0) + self.size, 1024, (self.mode, 0, 1))]

    #
    # --------------------------------------------------------------------

    Image.register_open(PixarImageFile.format, PixarImageFile, _accept)

    Image.register_extension(PixarImageFile.format, ".pxr")