aboutsummaryrefslogtreecommitdiffstats
path: root/env/lib/python3.10/site-packages/PIL/PsdImagePlugin.py
diff options
context:
space:
mode:
Diffstat (limited to 'env/lib/python3.10/site-packages/PIL/PsdImagePlugin.py')
-rw-r--r--env/lib/python3.10/site-packages/PIL/PsdImagePlugin.py305
1 files changed, 0 insertions, 305 deletions
diff --git a/env/lib/python3.10/site-packages/PIL/PsdImagePlugin.py b/env/lib/python3.10/site-packages/PIL/PsdImagePlugin.py
deleted file mode 100644
index bd10e3b..0000000
--- a/env/lib/python3.10/site-packages/PIL/PsdImagePlugin.py
+++ /dev/null
@@ -1,305 +0,0 @@
-#
-# The Python Imaging Library
-# $Id$
-#
-# Adobe PSD 2.5/3.0 file handling
-#
-# History:
-# 1995-09-01 fl Created
-# 1997-01-03 fl Read most PSD images
-# 1997-01-18 fl Fixed P and CMYK support
-# 2001-10-21 fl Added seek/tell support (for layers)
-#
-# Copyright (c) 1997-2001 by Secret Labs AB.
-# Copyright (c) 1995-2001 by Fredrik Lundh
-#
-# See the README file for information on usage and redistribution.
-#
-
-import io
-
-from . import Image, ImageFile, ImagePalette
-from ._binary import i8
-from ._binary import i16be as i16
-from ._binary import i32be as i32
-from ._binary import si16be as si16
-
-MODES = {
- # (photoshop mode, bits) -> (pil mode, required channels)
- (0, 1): ("1", 1),
- (0, 8): ("L", 1),
- (1, 8): ("L", 1),
- (2, 8): ("P", 1),
- (3, 8): ("RGB", 3),
- (4, 8): ("CMYK", 4),
- (7, 8): ("L", 1), # FIXME: multilayer
- (8, 8): ("L", 1), # duotone
- (9, 8): ("LAB", 3),
-}
-
-
-# --------------------------------------------------------------------.
-# read PSD images
-
-
-def _accept(prefix):
- return prefix[:4] == b"8BPS"
-
-
-##
-# Image plugin for Photoshop images.
-
-
-class PsdImageFile(ImageFile.ImageFile):
-
- format = "PSD"
- format_description = "Adobe Photoshop"
- _close_exclusive_fp_after_loading = False
-
- def _open(self):
-
- read = self.fp.read
-
- #
- # header
-
- s = read(26)
- if not _accept(s) or i16(s, 4) != 1:
- raise SyntaxError("not a PSD file")
-
- psd_bits = i16(s, 22)
- psd_channels = i16(s, 12)
- psd_mode = i16(s, 24)
-
- mode, channels = MODES[(psd_mode, psd_bits)]
-
- if channels > psd_channels:
- raise OSError("not enough channels")
- if mode == "RGB" and psd_channels == 4:
- mode = "RGBA"
- channels = 4
-
- self.mode = mode
- self._size = i32(s, 18), i32(s, 14)
-
- #
- # color mode data
-
- size = i32(read(4))
- if size:
- data = read(size)
- if mode == "P" and size == 768:
- self.palette = ImagePalette.raw("RGB;L", data)
-
- #
- # image resources
-
- self.resources = []
-
- size = i32(read(4))
- if size:
- # load resources
- end = self.fp.tell() + size
- while self.fp.tell() < end:
- read(4) # signature
- id = i16(read(2))
- name = read(i8(read(1)))
- if not (len(name) & 1):
- read(1) # padding
- data = read(i32(read(4)))
- if len(data) & 1:
- read(1) # padding
- self.resources.append((id, name, data))
- if id == 1039: # ICC profile
- self.info["icc_profile"] = data
-
- #
- # layer and mask information
-
- self.layers = []
-
- size = i32(read(4))
- if size:
- end = self.fp.tell() + size
- size = i32(read(4))
- if size:
- _layer_data = io.BytesIO(ImageFile._safe_read(self.fp, size))
- self.layers = _layerinfo(_layer_data, size)
- self.fp.seek(end)
- self.n_frames = len(self.layers)
- self.is_animated = self.n_frames > 1
-
- #
- # image descriptor
-
- self.tile = _maketile(self.fp, mode, (0, 0) + self.size, channels)
-
- # keep the file open
- self._fp = self.fp
- self.frame = 1
- self._min_frame = 1
-
- def seek(self, layer):
- if not self._seek_check(layer):
- return
-
- # seek to given layer (1..max)
- try:
- name, mode, bbox, tile = self.layers[layer - 1]
- self.mode = mode
- self.tile = tile
- self.frame = layer
- self.fp = self._fp
- return name, bbox
- except IndexError as e:
- raise EOFError("no such layer") from e
-
- def tell(self):
- # return layer number (0=image, 1..max=layers)
- return self.frame
-
-
-def _layerinfo(fp, ct_bytes):
- # read layerinfo block
- layers = []
-
- def read(size):
- return ImageFile._safe_read(fp, size)
-
- ct = si16(read(2))
-
- # sanity check
- if ct_bytes < (abs(ct) * 20):
- raise SyntaxError("Layer block too short for number of layers requested")
-
- for _ in range(abs(ct)):
-
- # bounding box
- y0 = i32(read(4))
- x0 = i32(read(4))
- y1 = i32(read(4))
- x1 = i32(read(4))
-
- # image info
- mode = []
- ct_types = i16(read(2))
- types = list(range(ct_types))
- if len(types) > 4:
- continue
-
- for _ in types:
- type = i16(read(2))
-
- if type == 65535:
- m = "A"
- else:
- m = "RGBA"[type]
-
- mode.append(m)
- read(4) # size
-
- # figure out the image mode
- mode.sort()
- if mode == ["R"]:
- mode = "L"
- elif mode == ["B", "G", "R"]:
- mode = "RGB"
- elif mode == ["A", "B", "G", "R"]:
- mode = "RGBA"
- else:
- mode = None # unknown
-
- # skip over blend flags and extra information
- read(12) # filler
- name = ""
- size = i32(read(4)) # length of the extra data field
- if size:
- data_end = fp.tell() + size
-
- length = i32(read(4))
- if length:
- fp.seek(length - 16, io.SEEK_CUR)
-
- length = i32(read(4))
- if length:
- fp.seek(length, io.SEEK_CUR)
-
- length = i8(read(1))
- if length:
- # Don't know the proper encoding,
- # Latin-1 should be a good guess
- name = read(length).decode("latin-1", "replace")
-
- fp.seek(data_end)
- layers.append((name, mode, (x0, y0, x1, y1)))
-
- # get tiles
- i = 0
- for name, mode, bbox in layers:
- tile = []
- for m in mode:
- t = _maketile(fp, m, bbox, 1)
- if t:
- tile.extend(t)
- layers[i] = name, mode, bbox, tile
- i += 1
-
- return layers
-
-
-def _maketile(file, mode, bbox, channels):
-
- tile = None
- read = file.read
-
- compression = i16(read(2))
-
- xsize = bbox[2] - bbox[0]
- ysize = bbox[3] - bbox[1]
-
- offset = file.tell()
-
- if compression == 0:
- #
- # raw compression
- tile = []
- for channel in range(channels):
- layer = mode[channel]
- if mode == "CMYK":
- layer += ";I"
- tile.append(("raw", bbox, offset, layer))
- offset = offset + xsize * ysize
-
- elif compression == 1:
- #
- # packbits compression
- i = 0
- tile = []
- bytecount = read(channels * ysize * 2)
- offset = file.tell()
- for channel in range(channels):
- layer = mode[channel]
- if mode == "CMYK":
- layer += ";I"
- tile.append(("packbits", bbox, offset, layer))
- for y in range(ysize):
- offset = offset + i16(bytecount, i)
- i += 2
-
- file.seek(offset)
-
- if offset & 1:
- read(1) # padding
-
- return tile
-
-
-# --------------------------------------------------------------------
-# registry
-
-
-Image.register_open(PsdImageFile.format, PsdImageFile, _accept)
-
-Image.register_extension(PsdImageFile.format, ".psd")
-
-Image.register_mime(PsdImageFile.format, "image/vnd.adobe.photoshop")