1 files changed, 142 insertions, 0 deletions
diff --git a/PIL/FliImagePlugin.py b/PIL/FliImagePlugin.py
new file mode 100644
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+++ b/PIL/FliImagePlugin.py
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+#
+# The Python Imaging Library.
+# $Id: FliImagePlugin.py 2134 2004-10-06 08:55:20Z fredrik $
+#
+# 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"
+
+import Image, ImageFile, ImagePalette
+import string
+
+
+def i16(c):
+    return ord(c[0]) + (ord(c[1])<<8)
+
+def i32(c):
+    return ord(c[0]) + (ord(c[1])<<8) + (ord(c[2])<<16) + (ord(c[3])<<24)
+
+#
+# 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 magic not in [0xAF11, 0xAF12]:
+            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 = map(lambda a: (a,a,a), 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 = map(lambda (r,g,b): chr(r)+chr(g)+chr(b), palette)
+        self.palette = ImagePalette.raw("RGB", string.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 + ord(s[0])
+            n = ord(s[1])
+            if n == 0:
+                n = 256
+            s = self.fp.read(n * 3)
+            for n in range(0, len(s), 3):
+                r = ord(s[n]) << shift
+                g = ord(s[n+1]) << shift
+                b = ord(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")