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https://github.com/python-pillow/Pillow.git
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a7e3b2e47b
There are two main issues fixed with this commit: * bytes vs. str: All file, image, and palette data are now handled as bytes. A new _binary module consolidates the hacks needed to do this across Python versions. tostring/fromstring methods have been renamed to tobytes/frombytes, but the Python 2.6/2.7 versions alias them to the old names for compatibility. Users should move to tobytes/frombytes. One other potentially-breaking change is that text data in image files (such as tags, comments) are now explicitly handled with a specific character encoding in mind. This works well with the Unicode str in Python 3, but may trip up old code expecting a straight byte-for-byte translation to a Python string. This also required a change to Gohlke's tags tests (in Tests/test_file_png.py) to expect Unicode strings from the code. * True div vs. floor div: Many division operations used the "/" operator to do floor division, which is now the "//" operator in Python 3. These were fixed. As of this commit, on the first pass, I have one failing test (improper handling of a slice object in a C module, test_imagepath.py) in Python 3, and three that that I haven't tried running yet (test_imagegl, test_imagegrab, and test_imageqt). I also haven't tested anything on Windows. All but the three skipped tests run flawlessly against Pythons 2.6 and 2.7.
75 lines
1.8 KiB
Python
75 lines
1.8 KiB
Python
#
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# The Python Imaging Library.
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# $Id$
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#
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# XV Thumbnail file handler by Charles E. "Gene" Cash
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# (gcash@magicnet.net)
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#
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# see xvcolor.c and xvbrowse.c in the sources to John Bradley's XV,
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# available from ftp://ftp.cis.upenn.edu/pub/xv/
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#
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# history:
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# 98-08-15 cec created (b/w only)
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# 98-12-09 cec added color palette
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# 98-12-28 fl added to PIL (with only a few very minor modifications)
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#
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# To do:
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# FIXME: make save work (this requires quantization support)
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#
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__version__ = "0.1"
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from . import Image, ImageFile, ImagePalette, _binary
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o8 = _binary.o8
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# standard color palette for thumbnails (RGB332)
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PALETTE = b""
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for r in range(8):
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for g in range(8):
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for b in range(4):
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PALETTE = PALETTE + (o8((r*255)//7)+o8((g*255)//7)+o8((b*255)//3))
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##
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# Image plugin for XV thumbnail images.
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class XVThumbImageFile(ImageFile.ImageFile):
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format = "XVThumb"
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format_description = "XV thumbnail image"
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def _open(self):
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# check magic
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s = self.fp.read(6)
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if s != b"P7 332":
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raise SyntaxError("not an XV thumbnail file")
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# Skip to beginning of next line
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self.fp.readline()
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# skip info comments
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while True:
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s = self.fp.readline()
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if not s:
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raise SyntaxError("Unexpected EOF reading XV thumbnail file")
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if s[0] != b'#':
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break
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# parse header line (already read)
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s = s.strip().split()
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self.mode = "P"
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self.size = int(s[0:1]), int(s[1:2])
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self.palette = ImagePalette.raw("RGB", PALETTE)
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self.tile = [
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("raw", (0, 0)+self.size,
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self.fp.tell(), (self.mode, 0, 1)
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)]
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# --------------------------------------------------------------------
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Image.register_open("XVThumb", XVThumbImageFile)
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