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projecten1/lib/python3.6/site-packages/PIL/PcdImagePlugin.py

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+#
+# The Python Imaging Library.
+# $Id$
+#
+# PCD file handling
+#
+# History:
+#       96-05-10 fl     Created
+#       96-05-27 fl     Added draft mode (128x192, 256x384)
+#
+# Copyright (c) Secret Labs AB 1997.
+# Copyright (c) Fredrik Lundh 1996.
+#
+# See the README file for information on usage and redistribution.
+#
+
+
+from . import Image, ImageFile
+from ._binary import i8
+
+__version__ = "0.1"
+
+
+##
+# Image plugin for PhotoCD images.  This plugin only reads the 768x512
+# image from the file; higher resolutions are encoded in a proprietary
+# encoding.
+
+class PcdImageFile(ImageFile.ImageFile):
+
+    format = "PCD"
+    format_description = "Kodak PhotoCD"
+
+    def _open(self):
+
+        # rough
+        self.fp.seek(2048)
+        s = self.fp.read(2048)
+
+        if s[:4] != b"PCD_":
+            raise SyntaxError("not a PCD file")
+
+        orientation = i8(s[1538]) & 3
+        self.tile_post_rotate = None
+        if orientation == 1:
+            self.tile_post_rotate = 90
+        elif orientation == 3:
+            self.tile_post_rotate = -90
+
+        self.mode = "RGB"
+        self.size = 768, 512  # FIXME: not correct for rotated images!
+        self.tile = [("pcd", (0, 0)+self.size, 96*2048, None)]
+
+    def load_end(self):
+        if self.tile_post_rotate:
+            # Handle rotated PCDs
+            self.im = self.im.rotate(self.tile_post_rotate)
+            self.size = self.im.size
+
+
+#
+# registry
+
+Image.register_open(PcdImageFile.format, PcdImageFile)
+
+Image.register_extension(PcdImageFile.format, ".pcd")