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- #
- # The Python Imaging Library.
- # $Id$
- #
- # PCD file handling
- #
- # History:
- # 96-05-10 fl Created
- # 96-05-27 fl Added draft mode (128x192, 256x384)
- #
- # Copyright (c) Secret Labs AB 1997.
- # Copyright (c) Fredrik Lundh 1996.
- #
- # See the README file for information on usage and redistribution.
- #
- from __future__ import annotations
- from . import Image, ImageFile
- ##
- # Image plugin for PhotoCD images. This plugin only reads the 768x512
- # image from the file; higher resolutions are encoded in a proprietary
- # encoding.
- class PcdImageFile(ImageFile.ImageFile):
- format = "PCD"
- format_description = "Kodak PhotoCD"
- def _open(self) -> None:
- # rough
- assert self.fp is not None
- self.fp.seek(2048)
- s = self.fp.read(1539)
- if not s.startswith(b"PCD_"):
- msg = "not a PCD file"
- raise SyntaxError(msg)
- orientation = s[1538] & 3
- self.tile_post_rotate = None
- if orientation == 1:
- self.tile_post_rotate = 90
- elif orientation == 3:
- self.tile_post_rotate = 270
- self._mode = "RGB"
- self._size = (512, 768) if orientation in (1, 3) else (768, 512)
- self.tile = [ImageFile._Tile("pcd", (0, 0, 768, 512), 96 * 2048)]
- def load_prepare(self) -> None:
- if self._im is None and self.tile_post_rotate:
- self.im = Image.core.new(self.mode, (768, 512))
- ImageFile.ImageFile.load_prepare(self)
- def load_end(self) -> None:
- if self.tile_post_rotate:
- # Handle rotated PCDs
- self.im = self.rotate(self.tile_post_rotate, expand=True).im
- #
- # registry
- Image.register_open(PcdImageFile.format, PcdImageFile)
- Image.register_extension(PcdImageFile.format, ".pcd")
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