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Diffstat (limited to 'venv/lib/python3.9/site-packages/PIL/ImtImagePlugin.py')
-rw-r--r-- | venv/lib/python3.9/site-packages/PIL/ImtImagePlugin.py | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/venv/lib/python3.9/site-packages/PIL/ImtImagePlugin.py b/venv/lib/python3.9/site-packages/PIL/ImtImagePlugin.py new file mode 100644 index 00000000..ac267457 --- /dev/null +++ b/venv/lib/python3.9/site-packages/PIL/ImtImagePlugin.py @@ -0,0 +1,101 @@ +# +# The Python Imaging Library. +# $Id$ +# +# IM Tools support for PIL +# +# history: +# 1996-05-27 fl Created (read 8-bit images only) +# 2001-02-17 fl Use 're' instead of 'regex' (Python 2.1) (0.2) +# +# Copyright (c) Secret Labs AB 1997-2001. +# Copyright (c) Fredrik Lundh 1996-2001. +# +# See the README file for information on usage and redistribution. +# + + +import re + +from . import Image, ImageFile + +# +# -------------------------------------------------------------------- + +field = re.compile(rb"([a-z]*) ([^ \r\n]*)") + + +## +# Image plugin for IM Tools images. + + +class ImtImageFile(ImageFile.ImageFile): + format = "IMT" + format_description = "IM Tools" + + def _open(self): + # Quick rejection: if there's not a LF among the first + # 100 bytes, this is (probably) not a text header. + + buffer = self.fp.read(100) + if b"\n" not in buffer: + msg = "not an IM file" + raise SyntaxError(msg) + + xsize = ysize = 0 + + while True: + if buffer: + s = buffer[:1] + buffer = buffer[1:] + else: + s = self.fp.read(1) + if not s: + break + + if s == b"\x0C": + # image data begins + self.tile = [ + ( + "raw", + (0, 0) + self.size, + self.fp.tell() - len(buffer), + (self.mode, 0, 1), + ) + ] + + break + + else: + # read key/value pair + if b"\n" not in buffer: + buffer += self.fp.read(100) + lines = buffer.split(b"\n") + s += lines.pop(0) + buffer = b"\n".join(lines) + if len(s) == 1 or len(s) > 100: + break + if s[0] == ord(b"*"): + continue # comment + + m = field.match(s) + if not m: + break + k, v = m.group(1, 2) + if k == b"width": + xsize = int(v) + self._size = xsize, ysize + elif k == b"height": + ysize = int(v) + self._size = xsize, ysize + elif k == b"pixel" and v == b"n8": + self.mode = "L" + + +# +# -------------------------------------------------------------------- + +Image.register_open(ImtImageFile.format, ImtImageFile) + +# +# no extension registered (".im" is simply too common) |