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| # | |
| # 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 <[email protected]>. 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: bytes) -> bool: | |
| 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) -> None: | |
| # assuming a 4-byte magic label | |
| assert self.fp is not None | |
| 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") | |