#
# 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 PIL import Image, ImageFile, _binary
__version__ = "0.1"
i8 = _binary.i8
##
# Image plugin for PhotoCD images. This plugin only reads the 768x512
# image from the file; higher resolutions are encoded in a proprietary
# encoding.
[文档]class PcdImageFile(ImageFile.ImageFile):
format = "PCD"
format_description = "Kodak PhotoCD"
def _open(self):
# rough
self.fp.seek(2048)
s = self.fp.read(2048)
if s[:4] != b"PCD_":
raise SyntaxError("not a PCD file")
orientation = i8(s[1538]) & 3
if orientation == 1:
self.tile_post_rotate = 90 # hack
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)]
#
# registry
Image.register_open(PcdImageFile.format, PcdImageFile)
Image.register_extension(PcdImageFile.format, ".pcd")