118 lines
4.3 KiB
Python
118 lines
4.3 KiB
Python
# ----------------------------------------------------------------------------
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# pyglet
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# Copyright (c) 2006-2008 Alex Holkner
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# Copyright (c) 2008-2021 pyglet contributors
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of pyglet nor the names of its
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# contributors may be used to endorse or promote products
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# derived from this software without specific prior written
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# permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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# ----------------------------------------------------------------------------
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import os.path
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from pyglet.image import *
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from pyglet.image.codecs import *
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from PIL import Image
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class PILImageDecoder(ImageDecoder):
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def get_file_extensions(self):
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# Only most common ones shown here
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return ['.bmp', '.cur', '.gif', '.ico', '.jpg', '.jpeg', '.pcx', '.png',
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'.tga', '.tif', '.tiff', '.xbm', '.xpm']
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# def get_animation_file_extensions(self):
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# return ['.gif', '.ani']
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def decode(self, filename, file):
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if not file:
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file = open(filename, 'rb')
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try:
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image = Image.open(file)
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except Exception as e:
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raise ImageDecodeException('PIL cannot read %r: %s' % (filename or file, e))
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try:
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image = image.transpose(Image.FLIP_TOP_BOTTOM)
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except Exception as e:
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raise ImageDecodeException('PIL failed to transpose %r: %s' % (filename or file, e))
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# Convert bitmap and palette images to component
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if image.mode in ('1', 'P'):
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image = image.convert()
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if image.mode not in ('L', 'LA', 'RGB', 'RGBA'):
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raise ImageDecodeException('Unsupported mode "%s"' % image.mode)
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width, height = image.size
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return ImageData(width, height, image.mode, image.tobytes())
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class PILImageEncoder(ImageEncoder):
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def get_file_extensions(self):
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# Most common only
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return ['.bmp', '.eps', '.gif', '.jpg', '.jpeg',
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'.pcx', '.png', '.ppm', '.tiff', '.xbm']
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def encode(self, image, filename, file):
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# File format is guessed from filename extension, otherwise defaults to PNG.
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pil_format = (filename and os.path.splitext(filename)[1][1:]) or 'png'
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if pil_format.lower() == 'jpg':
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pil_format = 'JPEG'
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image = image.get_image_data()
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fmt = image.format
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if fmt != 'RGB':
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# Only save in RGB or RGBA formats.
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fmt = 'RGBA'
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pitch = -(image.width * len(fmt))
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# fromstring is deprecated, replaced by frombytes in Pillow (PIL fork)
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# (1.1.7) PIL still uses it
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try:
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image_from_fn = getattr(Image, "frombytes")
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except AttributeError:
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image_from_fn = getattr(Image, "fromstring")
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pil_image = image_from_fn(fmt, (image.width, image.height), image.get_data(fmt, pitch))
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try:
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pil_image.save(file, pil_format)
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except Exception as e:
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raise ImageEncodeException(e)
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def get_decoders():
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return [PILImageDecoder()]
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def get_encoders():
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return [PILImageEncoder()]
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