111 lines
4 KiB
Python
111 lines
4 KiB
Python
|
# ----------------------------------------------------------------------------
|
||
|
|
# 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()]
|