# ----------------------------------------------------------------------------
# pyglet
# Copyright (c) 2006-2008 Alex Holkner
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of pyglet nor the names of its
# contributors may be used to endorse or promote products
# derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# ----------------------------------------------------------------------------
'''
'''
__docformat__ = 'restructuredtext'
__version__ = '$Id: pil.py 1768 2008-02-17 12:45:54Z Alex.Holkner $'
import os.path
from pyglet.gl import *
from pyglet.image import *
from pyglet.image.codecs import *
import Image
class PILImageDecoder(ImageDecoder):
def get_file_extensions(self):
# Only most common ones shown here
return ['.bmp', '.cur', '.gif', '.ico', '.jpg', '.jpeg', '.pcx', '.png',
'.tga', '.tif', '.tiff', '.xbm', '.xpm']
def decode(self, file, filename):
try:
image = Image.open(file)
except Exception, e:
raise ImageDecodeException(
'PIL cannot read %r: %s' % (filename or file, e))
image = image.transpose(Image.FLIP_TOP_BOTTOM)
# Convert bitmap and palette images to component
if image.mode in ('1', 'P'):
image = image.convert()
if image.mode not in ('L', 'LA', 'RGB', 'RGBA'):
raise ImageDecodeException('Unsupported mode "%s"' % image.mode)
type = GL_UNSIGNED_BYTE
width, height = image.size
return ImageData(width, height, image.mode, image.tostring())
class PILImageEncoder(ImageEncoder):
def get_file_extensions(self):
# Most common only
return ['.bmp', '.eps', '.gif', '.jpg', '.jpeg',
'.pcx', '.png', '.ppm', '.tiff', '.xbm']
def encode(self, image, file, filename):
# File format is guessed from filename extension, otherwise defaults
# to PNG.
pil_format = (filename and os.path.splitext(filename)[1][1:]) or 'png'
if pil_format.lower() == 'jpg':
pil_format = 'JPEG'
image = image.get_image_data()
format = image.format
if format != 'RGB':
# Only save in RGB or RGBA formats.
format = 'RGBA'
pitch = -(image.width * len(format))
# Note: Don't try and use frombuffer(..); different versions of
# PIL will orient the image differently.
pil_image = Image.fromstring(
format, (image.width, image.height), image.get_data(format, pitch))
try:
pil_image.save(file, pil_format)
except Exception, e:
raise ImageEncodeException(e)
def get_decoders():
return [PILImageDecoder()]
def get_encoders():
return [PILImageEncoder()]
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