/usr/lib/python2.7/dist-packages/PIL/FliImagePlugin.py is in python-pil 2.3.0-1ubuntu3.4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | #
# 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.
#
__version__ = "0.2"
from PIL import Image, ImageFile, ImagePalette, _binary
i8 = _binary.i8
i16 = _binary.i16le
i32 = _binary.i32le
o8 = _binary.o8
#
# decoder
def _accept(prefix):
return i16(prefix[4:6]) in [0xAF11, 0xAF12]
##
# 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"
def _open(self):
# HEAD
s = self.fp.read(128)
magic = i16(s[4:6])
if not (magic in [0xAF11, 0xAF12] and
i16(s[14:16]) in [0, 3] and # flags
s[20:22] == b"\x00\x00"): # reserved
raise SyntaxError("not an FLI/FLC file")
# image characteristics
self.mode = "P"
self.size = i16(s[8:10]), i16(s[10:12])
# animation speed
duration = i32(s[16:20])
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[4:6]) == 0xF100:
# prefix chunk; ignore it
self.__offset = self.__offset + i32(s)
s = self.fp.read(16)
if i16(s[4:6]) == 0xF1FA:
# look for palette chunk
s = self.fp.read(6)
if i16(s[4:6]) == 11:
self._palette(palette, 2)
elif i16(s[4:6]) == 4:
self._palette(palette, 0)
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.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 + i8(s[0])
n = i8(s[1])
if n == 0:
n = 256
s = self.fp.read(n * 3)
for n in range(0, len(s), 3):
r = i8(s[n]) << shift
g = i8(s[n+1]) << shift
b = i8(s[n+2]) << shift
palette[i] = (r, g, b)
i = i + 1
def seek(self, frame):
if frame != self.frame + 1:
raise ValueError("cannot seek to frame %d" % 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 = self.__offset + framesize
def tell(self):
return self.frame
#
# registry
Image.register_open("FLI", FliImageFile, _accept)
Image.register_extension("FLI", ".fli")
Image.register_extension("FLI", ".flc")
|