aboutsummaryrefslogtreecommitdiffstats
path: root/env/lib/python3.10/site-packages/PIL/ImImagePlugin.py
diff options
context:
space:
mode:
Diffstat (limited to 'env/lib/python3.10/site-packages/PIL/ImImagePlugin.py')
-rw-r--r--env/lib/python3.10/site-packages/PIL/ImImagePlugin.py373
1 files changed, 0 insertions, 373 deletions
diff --git a/env/lib/python3.10/site-packages/PIL/ImImagePlugin.py b/env/lib/python3.10/site-packages/PIL/ImImagePlugin.py
deleted file mode 100644
index 31b0ff4..0000000
--- a/env/lib/python3.10/site-packages/PIL/ImImagePlugin.py
+++ /dev/null
@@ -1,373 +0,0 @@
-#
-# The Python Imaging Library.
-# $Id$
-#
-# IFUNC IM file handling for PIL
-#
-# history:
-# 1995-09-01 fl Created.
-# 1997-01-03 fl Save palette images
-# 1997-01-08 fl Added sequence support
-# 1997-01-23 fl Added P and RGB save support
-# 1997-05-31 fl Read floating point images
-# 1997-06-22 fl Save floating point images
-# 1997-08-27 fl Read and save 1-bit images
-# 1998-06-25 fl Added support for RGB+LUT images
-# 1998-07-02 fl Added support for YCC images
-# 1998-07-15 fl Renamed offset attribute to avoid name clash
-# 1998-12-29 fl Added I;16 support
-# 2001-02-17 fl Use 're' instead of 'regex' (Python 2.1) (0.7)
-# 2003-09-26 fl Added LA/PA support
-#
-# Copyright (c) 1997-2003 by Secret Labs AB.
-# Copyright (c) 1995-2001 by Fredrik Lundh.
-#
-# See the README file for information on usage and redistribution.
-#
-
-
-import os
-import re
-
-from . import Image, ImageFile, ImagePalette
-
-# --------------------------------------------------------------------
-# Standard tags
-
-COMMENT = "Comment"
-DATE = "Date"
-EQUIPMENT = "Digitalization equipment"
-FRAMES = "File size (no of images)"
-LUT = "Lut"
-NAME = "Name"
-SCALE = "Scale (x,y)"
-SIZE = "Image size (x*y)"
-MODE = "Image type"
-
-TAGS = {
- COMMENT: 0,
- DATE: 0,
- EQUIPMENT: 0,
- FRAMES: 0,
- LUT: 0,
- NAME: 0,
- SCALE: 0,
- SIZE: 0,
- MODE: 0,
-}
-
-OPEN = {
- # ifunc93/p3cfunc formats
- "0 1 image": ("1", "1"),
- "L 1 image": ("1", "1"),
- "Greyscale image": ("L", "L"),
- "Grayscale image": ("L", "L"),
- "RGB image": ("RGB", "RGB;L"),
- "RLB image": ("RGB", "RLB"),
- "RYB image": ("RGB", "RLB"),
- "B1 image": ("1", "1"),
- "B2 image": ("P", "P;2"),
- "B4 image": ("P", "P;4"),
- "X 24 image": ("RGB", "RGB"),
- "L 32 S image": ("I", "I;32"),
- "L 32 F image": ("F", "F;32"),
- # old p3cfunc formats
- "RGB3 image": ("RGB", "RGB;T"),
- "RYB3 image": ("RGB", "RYB;T"),
- # extensions
- "LA image": ("LA", "LA;L"),
- "PA image": ("LA", "PA;L"),
- "RGBA image": ("RGBA", "RGBA;L"),
- "RGBX image": ("RGBX", "RGBX;L"),
- "CMYK image": ("CMYK", "CMYK;L"),
- "YCC image": ("YCbCr", "YCbCr;L"),
-}
-
-# ifunc95 extensions
-for i in ["8", "8S", "16", "16S", "32", "32F"]:
- OPEN[f"L {i} image"] = ("F", f"F;{i}")
- OPEN[f"L*{i} image"] = ("F", f"F;{i}")
-for i in ["16", "16L", "16B"]:
- OPEN[f"L {i} image"] = (f"I;{i}", f"I;{i}")
- OPEN[f"L*{i} image"] = (f"I;{i}", f"I;{i}")
-for i in ["32S"]:
- OPEN[f"L {i} image"] = ("I", f"I;{i}")
- OPEN[f"L*{i} image"] = ("I", f"I;{i}")
-for i in range(2, 33):
- OPEN[f"L*{i} image"] = ("F", f"F;{i}")
-
-
-# --------------------------------------------------------------------
-# Read IM directory
-
-split = re.compile(rb"^([A-Za-z][^:]*):[ \t]*(.*)[ \t]*$")
-
-
-def number(s):
- try:
- return int(s)
- except ValueError:
- return float(s)
-
-
-##
-# Image plugin for the IFUNC IM file format.
-
-
-class ImImageFile(ImageFile.ImageFile):
-
- format = "IM"
- format_description = "IFUNC Image Memory"
- _close_exclusive_fp_after_loading = False
-
- def _open(self):
-
- # Quick rejection: if there's not an LF among the first
- # 100 bytes, this is (probably) not a text header.
-
- if b"\n" not in self.fp.read(100):
- raise SyntaxError("not an IM file")
- self.fp.seek(0)
-
- n = 0
-
- # Default values
- self.info[MODE] = "L"
- self.info[SIZE] = (512, 512)
- self.info[FRAMES] = 1
-
- self.rawmode = "L"
-
- while True:
-
- s = self.fp.read(1)
-
- # Some versions of IFUNC uses \n\r instead of \r\n...
- if s == b"\r":
- continue
-
- if not s or s == b"\0" or s == b"\x1A":
- break
-
- # FIXME: this may read whole file if not a text file
- s = s + self.fp.readline()
-
- if len(s) > 100:
- raise SyntaxError("not an IM file")
-
- if s[-2:] == b"\r\n":
- s = s[:-2]
- elif s[-1:] == b"\n":
- s = s[:-1]
-
- try:
- m = split.match(s)
- except re.error as e:
- raise SyntaxError("not an IM file") from e
-
- if m:
-
- k, v = m.group(1, 2)
-
- # Don't know if this is the correct encoding,
- # but a decent guess (I guess)
- k = k.decode("latin-1", "replace")
- v = v.decode("latin-1", "replace")
-
- # Convert value as appropriate
- if k in [FRAMES, SCALE, SIZE]:
- v = v.replace("*", ",")
- v = tuple(map(number, v.split(",")))
- if len(v) == 1:
- v = v[0]
- elif k == MODE and v in OPEN:
- v, self.rawmode = OPEN[v]
-
- # Add to dictionary. Note that COMMENT tags are
- # combined into a list of strings.
- if k == COMMENT:
- if k in self.info:
- self.info[k].append(v)
- else:
- self.info[k] = [v]
- else:
- self.info[k] = v
-
- if k in TAGS:
- n += 1
-
- else:
-
- raise SyntaxError(
- "Syntax error in IM header: " + s.decode("ascii", "replace")
- )
-
- if not n:
- raise SyntaxError("Not an IM file")
-
- # Basic attributes
- self._size = self.info[SIZE]
- self.mode = self.info[MODE]
-
- # Skip forward to start of image data
- while s and s[:1] != b"\x1A":
- s = self.fp.read(1)
- if not s:
- raise SyntaxError("File truncated")
-
- if LUT in self.info:
- # convert lookup table to palette or lut attribute
- palette = self.fp.read(768)
- greyscale = 1 # greyscale palette
- linear = 1 # linear greyscale palette
- for i in range(256):
- if palette[i] == palette[i + 256] == palette[i + 512]:
- if palette[i] != i:
- linear = 0
- else:
- greyscale = 0
- if self.mode in ["L", "LA", "P", "PA"]:
- if greyscale:
- if not linear:
- self.lut = list(palette[:256])
- else:
- if self.mode in ["L", "P"]:
- self.mode = self.rawmode = "P"
- elif self.mode in ["LA", "PA"]:
- self.mode = "PA"
- self.rawmode = "PA;L"
- self.palette = ImagePalette.raw("RGB;L", palette)
- elif self.mode == "RGB":
- if not greyscale or not linear:
- self.lut = list(palette)
-
- self.frame = 0
-
- self.__offset = offs = self.fp.tell()
-
- self._fp = self.fp # FIXME: hack
-
- if self.rawmode[:2] == "F;":
-
- # ifunc95 formats
- try:
- # use bit decoder (if necessary)
- bits = int(self.rawmode[2:])
- if bits not in [8, 16, 32]:
- self.tile = [("bit", (0, 0) + self.size, offs, (bits, 8, 3, 0, -1))]
- return
- except ValueError:
- pass
-
- if self.rawmode in ["RGB;T", "RYB;T"]:
- # Old LabEye/3PC files. Would be very surprised if anyone
- # ever stumbled upon such a file ;-)
- size = self.size[0] * self.size[1]
- self.tile = [
- ("raw", (0, 0) + self.size, offs, ("G", 0, -1)),
- ("raw", (0, 0) + self.size, offs + size, ("R", 0, -1)),
- ("raw", (0, 0) + self.size, offs + 2 * size, ("B", 0, -1)),
- ]
- else:
- # LabEye/IFUNC files
- self.tile = [("raw", (0, 0) + self.size, offs, (self.rawmode, 0, -1))]
-
- @property
- def n_frames(self):
- return self.info[FRAMES]
-
- @property
- def is_animated(self):
- return self.info[FRAMES] > 1
-
- def seek(self, frame):
- if not self._seek_check(frame):
- return
-
- self.frame = frame
-
- if self.mode == "1":
- bits = 1
- else:
- bits = 8 * len(self.mode)
-
- size = ((self.size[0] * bits + 7) // 8) * self.size[1]
- offs = self.__offset + frame * size
-
- self.fp = self._fp
-
- self.tile = [("raw", (0, 0) + self.size, offs, (self.rawmode, 0, -1))]
-
- def tell(self):
- return self.frame
-
-
-#
-# --------------------------------------------------------------------
-# Save IM files
-
-
-SAVE = {
- # mode: (im type, raw mode)
- "1": ("0 1", "1"),
- "L": ("Greyscale", "L"),
- "LA": ("LA", "LA;L"),
- "P": ("Greyscale", "P"),
- "PA": ("LA", "PA;L"),
- "I": ("L 32S", "I;32S"),
- "I;16": ("L 16", "I;16"),
- "I;16L": ("L 16L", "I;16L"),
- "I;16B": ("L 16B", "I;16B"),
- "F": ("L 32F", "F;32F"),
- "RGB": ("RGB", "RGB;L"),
- "RGBA": ("RGBA", "RGBA;L"),
- "RGBX": ("RGBX", "RGBX;L"),
- "CMYK": ("CMYK", "CMYK;L"),
- "YCbCr": ("YCC", "YCbCr;L"),
-}
-
-
-def _save(im, fp, filename):
-
- try:
- image_type, rawmode = SAVE[im.mode]
- except KeyError as e:
- raise ValueError(f"Cannot save {im.mode} images as IM") from e
-
- frames = im.encoderinfo.get("frames", 1)
-
- fp.write(f"Image type: {image_type} image\r\n".encode("ascii"))
- if filename:
- # Each line must be 100 characters or less,
- # or: SyntaxError("not an IM file")
- # 8 characters are used for "Name: " and "\r\n"
- # Keep just the filename, ditch the potentially overlong path
- name, ext = os.path.splitext(os.path.basename(filename))
- name = "".join([name[: 92 - len(ext)], ext])
-
- fp.write(f"Name: {name}\r\n".encode("ascii"))
- fp.write(("Image size (x*y): %d*%d\r\n" % im.size).encode("ascii"))
- fp.write(f"File size (no of images): {frames}\r\n".encode("ascii"))
- if im.mode in ["P", "PA"]:
- fp.write(b"Lut: 1\r\n")
- fp.write(b"\000" * (511 - fp.tell()) + b"\032")
- if im.mode in ["P", "PA"]:
- im_palette = im.im.getpalette("RGB", "RGB;L")
- colors = len(im_palette) // 3
- palette = b""
- for i in range(3):
- palette += im_palette[colors * i : colors * (i + 1)]
- palette += b"\x00" * (256 - colors)
- fp.write(palette) # 768 bytes
- ImageFile._save(im, fp, [("raw", (0, 0) + im.size, 0, (rawmode, 0, -1))])
-
-
-#
-# --------------------------------------------------------------------
-# Registry
-
-
-Image.register_open(ImImageFile.format, ImImageFile)
-Image.register_save(ImImageFile.format, _save)
-
-Image.register_extension(ImImageFile.format, ".im")
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-04-06 08:37:17 +0000