1 files changed, 75 insertions, 0 deletions
diff --git a/lib/Python/Lib/PIL/XVThumbImagePlugin.py b/lib/Python/Lib/PIL/XVThumbImagePlugin.py
new file mode 100644
index 000000000..5cf1386fd
--- /dev/null
+++ b/lib/Python/Lib/PIL/XVThumbImagePlugin.py
@@ -0,0 +1,75 @@
+#
+# The Python Imaging Library.
+# $Id$
+#
+# XV Thumbnail file handler by Charles E. "Gene" Cash
+# (gcash@magicnet.net)
+#
+# see xvcolor.c and xvbrowse.c in the sources to John Bradley's XV,
+# available from ftp://ftp.cis.upenn.edu/pub/xv/
+#
+# history:
+# 98-08-15 cec  created (b/w only)
+# 98-12-09 cec  added color palette
+# 98-12-28 fl   added to PIL (with only a few very minor modifications)
+#
+# To do:
+# FIXME: make save work (this requires quantization support)
+#
+
+__version__ = "0.1"
+
+from PIL import Image, ImageFile, ImagePalette, _binary
+
+o8 = _binary.o8
+
+# standard color palette for thumbnails (RGB332)
+PALETTE = b""
+for r in range(8):
+    for g in range(8):
+        for b in range(4):
+            PALETTE = PALETTE + (o8((r*255)//7)+o8((g*255)//7)+o8((b*255)//3))
+
+
+##
+# Image plugin for XV thumbnail images.
+
+class XVThumbImageFile(ImageFile.ImageFile):
+
+    format = "XVThumb"
+    format_description = "XV thumbnail image"
+
+    def _open(self):
+
+        # check magic
+        s = self.fp.read(6)
+        if s != b"P7 332":
+            raise SyntaxError("not an XV thumbnail file")
+
+        # Skip to beginning of next line
+        self.fp.readline()
+
+        # skip info comments
+        while True:
+            s = self.fp.readline()
+            if not s:
+                raise SyntaxError("Unexpected EOF reading XV thumbnail file")
+            if s[0] != b'#':
+                break
+
+        # parse header line (already read)
+        s = s.strip().split()
+
+        self.mode = "P"
+        self.size = int(s[0:1]), int(s[1:2])
+
+        self.palette = ImagePalette.raw("RGB", PALETTE)
+
+        self.tile = [
+            ("raw", (0, 0)+self.size,
+             self.fp.tell(), (self.mode, 0, 1)
+             )]
+
+# --------------------------------------------------------------------
+
+Image.register_open("XVThumb", XVThumbImageFile)