51 lines
1.3 KiB
Python
51 lines
1.3 KiB
Python
|
#
|
||
|
|
# The Python Imaging Library.
|
||
|
|
# $Id$
|
||
|
|
#
|
||
|
|
# standard mode descriptors
|
||
|
|
#
|
||
|
|
# History:
|
||
|
|
# 2006-03-20 fl Added
|
||
|
|
#
|
||
|
|
# Copyright (c) 2006 by Secret Labs AB.
|
||
|
|
# Copyright (c) 2006 by Fredrik Lundh.
|
||
|
|
#
|
||
|
|
# See the README file for information on usage and redistribution.
|
||
|
|
#
|
||
|
|
|
||
|
|
# mode descriptor cache
|
||
|
|
_modes = {}
|
||
|
|
|
||
|
|
##
|
||
|
|
# Wrapper for mode strings.
|
||
|
|
|
||
|
|
class ModeDescriptor:
|
||
|
|
|
||
|
|
def __init__(self, mode, bands, basemode, basetype):
|
||
|
|
self.mode = mode
|
||
|
|
self.bands = bands
|
||
|
|
self.basemode = basemode
|
||
|
|
self.basetype = basetype
|
||
|
|
|
||
|
|
def __str__(self):
|
||
|
|
return self.mode
|
||
|
|
|
||
|
|
##
|
||
|
|
# Gets a mode descriptor for the given mode.
|
||
|
|
|
||
|
|
def getmode(mode):
|
||
|
|
if not _modes:
|
||
|
|
# initialize mode cache
|
||
|
|
import Image
|
||
|
|
# core modes
|
||
|
|
for m, (basemode, basetype, bands) in Image._MODEINFO.items():
|
||
|
|
_modes[m] = ModeDescriptor(m, bands, basemode, basetype)
|
||
|
|
# extra experimental modes
|
||
|
|
_modes["LA"] = ModeDescriptor("LA", ("L", "A"), "L", "L")
|
||
|
|
_modes["PA"] = ModeDescriptor("PA", ("P", "A"), "RGB", "L")
|
||
|
|
# mapping modes
|
||
|
|
_modes["I;16"] = ModeDescriptor("I;16", "I", "L", "L")
|
||
|
|
_modes["I;16L"] = ModeDescriptor("I;16L", "I", "L", "L")
|
||
|
|
_modes["I;16B"] = ModeDescriptor("I;16B", "I", "L", "L")
|
||
|
|
return _modes[mode]
|