diff options
Diffstat (limited to 'lib/Python/Lib/PIL/PcdImagePlugin.py')
-rw-r--r-- | lib/Python/Lib/PIL/PcdImagePlugin.py | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/lib/Python/Lib/PIL/PcdImagePlugin.py b/lib/Python/Lib/PIL/PcdImagePlugin.py new file mode 100644 index 000000000..5ce7aa48c --- /dev/null +++ b/lib/Python/Lib/PIL/PcdImagePlugin.py @@ -0,0 +1,79 @@ +# +# 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. +# + + +__version__ = "0.1" + + +from PIL import Image, ImageFile, _binary + +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. + +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)] + + def draft(self, mode, size): + + if len(self.tile) != 1: + return + + d, e, o, a = self.tile[0] + + if size: + scale = max(self.size[0] / size[0], self.size[1] / size[1]) + for s, o in [(4, 0*2048), (2, 0*2048), (1, 96*2048)]: + if scale >= s: + break + # e = e[0], e[1], (e[2]-e[0]+s-1)/s+e[0], (e[3]-e[1]+s-1)/s+e[1] + # self.size = ((self.size[0]+s-1)/s, (self.size[1]+s-1)/s) + + self.tile = [(d, e, o, a)] + + return self + +# +# registry + +Image.register_open("PCD", PcdImageFile) + +Image.register_extension("PCD", ".pcd") |