83 lines
2.5 KiB
Python
83 lines
2.5 KiB
Python
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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