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Diffstat (limited to 'env/lib/python3.10/site-packages/PIL/FliImagePlugin.py')
-rw-r--r-- | env/lib/python3.10/site-packages/PIL/FliImagePlugin.py | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/env/lib/python3.10/site-packages/PIL/FliImagePlugin.py b/env/lib/python3.10/site-packages/PIL/FliImagePlugin.py deleted file mode 100644 index 908bed9..0000000 --- a/env/lib/python3.10/site-packages/PIL/FliImagePlugin.py +++ /dev/null @@ -1,171 +0,0 @@ -# -# The Python Imaging Library. -# $Id$ -# -# FLI/FLC file handling. -# -# History: -# 95-09-01 fl Created -# 97-01-03 fl Fixed parser, setup decoder tile -# 98-07-15 fl Renamed offset attribute to avoid name clash -# -# Copyright (c) Secret Labs AB 1997-98. -# Copyright (c) Fredrik Lundh 1995-97. -# -# See the README file for information on usage and redistribution. -# - -import os - -from . import Image, ImageFile, ImagePalette -from ._binary import i16le as i16 -from ._binary import i32le as i32 -from ._binary import o8 - -# -# decoder - - -def _accept(prefix): - return ( - len(prefix) >= 6 - and i16(prefix, 4) in [0xAF11, 0xAF12] - and i16(prefix, 14) in [0, 3] # flags - ) - - -## -# Image plugin for the FLI/FLC animation format. Use the <b>seek</b> -# method to load individual frames. - - -class FliImageFile(ImageFile.ImageFile): - - format = "FLI" - format_description = "Autodesk FLI/FLC Animation" - _close_exclusive_fp_after_loading = False - - def _open(self): - - # HEAD - s = self.fp.read(128) - if not (_accept(s) and s[20:22] == b"\x00\x00"): - raise SyntaxError("not an FLI/FLC file") - - # frames - self.n_frames = i16(s, 6) - self.is_animated = self.n_frames > 1 - - # image characteristics - self.mode = "P" - self._size = i16(s, 8), i16(s, 10) - - # animation speed - duration = i32(s, 16) - magic = i16(s, 4) - if magic == 0xAF11: - duration = (duration * 1000) // 70 - self.info["duration"] = duration - - # look for palette - palette = [(a, a, a) for a in range(256)] - - s = self.fp.read(16) - - self.__offset = 128 - - if i16(s, 4) == 0xF100: - # prefix chunk; ignore it - self.__offset = self.__offset + i32(s) - s = self.fp.read(16) - - if i16(s, 4) == 0xF1FA: - # look for palette chunk - number_of_subchunks = i16(s, 6) - chunk_size = None - for _ in range(number_of_subchunks): - if chunk_size is not None: - self.fp.seek(chunk_size - 6, os.SEEK_CUR) - s = self.fp.read(6) - chunk_type = i16(s, 4) - if chunk_type in (4, 11): - self._palette(palette, 2 if chunk_type == 11 else 0) - break - chunk_size = i32(s) - if not chunk_size: - break - - palette = [o8(r) + o8(g) + o8(b) for (r, g, b) in palette] - self.palette = ImagePalette.raw("RGB", b"".join(palette)) - - # set things up to decode first frame - self.__frame = -1 - self._fp = self.fp - self.__rewind = self.fp.tell() - self.seek(0) - - def _palette(self, palette, shift): - # load palette - - i = 0 - for e in range(i16(self.fp.read(2))): - s = self.fp.read(2) - i = i + s[0] - n = s[1] - if n == 0: - n = 256 - s = self.fp.read(n * 3) - for n in range(0, len(s), 3): - r = s[n] << shift - g = s[n + 1] << shift - b = s[n + 2] << shift - palette[i] = (r, g, b) - i += 1 - - def seek(self, frame): - if not self._seek_check(frame): - return - if frame < self.__frame: - self._seek(0) - - for f in range(self.__frame + 1, frame + 1): - self._seek(f) - - def _seek(self, frame): - if frame == 0: - self.__frame = -1 - self._fp.seek(self.__rewind) - self.__offset = 128 - else: - # ensure that the previous frame was loaded - self.load() - - if frame != self.__frame + 1: - raise ValueError(f"cannot seek to frame {frame}") - self.__frame = frame - - # move to next frame - self.fp = self._fp - self.fp.seek(self.__offset) - - s = self.fp.read(4) - if not s: - raise EOFError - - framesize = i32(s) - - self.decodermaxblock = framesize - self.tile = [("fli", (0, 0) + self.size, self.__offset, None)] - - self.__offset += framesize - - def tell(self): - return self.__frame - - -# -# registry - -Image.register_open(FliImageFile.format, FliImageFile, _accept) - -Image.register_extensions(FliImageFile.format, [".fli", ".flc"]) |