Viewing file:  PcdImagePlugin.py (1.58 KB) -rw-r--r--
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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(2048)
if s[:4] != 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 = -90
self._mode = "RGB"
self._size = 768, 512 # FIXME: not correct for rotated images!
self.tile = [("pcd", (0, 0) + self.size, 96 * 2048, None)]
def load_end(self) -> None:
if self.tile_post_rotate:
# Handle rotated PCDs
assert self.im is not None
self.im = self.im.rotate(self.tile_post_rotate)
self._size = self.im.size
#
# registry
Image.register_open(PcdImageFile.format, PcdImageFile)
Image.register_extension(PcdImageFile.format, ".pcd")
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