def load(cls, data=None, filename=None, parse=True, expected_type=None):
if filename is not None:
filename = os.path.normpath(filename)
stream = BinaryStream(data=data, filename=filename)
del data
(sig, platform, version, attribs, size) = stream.unpack(_XNB_HEADER)
if sig != XNB_SIGNATURE:
raise ReaderError("bad sig: '{!r}'".format(sig))
if platform not in XNB_PLATFORMS:
raise ReaderError("bad platform: '{!r}'".format(platform))
if version not in XNB_VERSIONS:
raise ReaderError("bad version: {}".format(version))
stream_length = stream.length()
if stream_length != size:
raise ReaderError("bad size: {} != {}".format(stream_length, size))
compressed = False
profile = 0
if version >= VERSION_40:
profile = attribs & _PROFILE_MASK
if profile not in XNB_PROFILES:
raise ReaderError("bad profile: {}".format(profile))
if version >= VERSION_30:
compressed = bool(attribs & _COMPRESS_MASK)
size -= stream.calc_size(_XNB_HEADER)
if compressed:
uncomp = stream.read_int32()
size -= 4
content_comp = stream.read(size)
content = decompress(content_comp, uncomp)
else:
content = stream.read(size)
return cls(content, platform, version, profile, compressed, parse=parse, expected_type=expected_type)
def load(cls, data=None, filename=None, parse=True, expected_type=None):
if filename is not None:
filename = os.path.normpath(filename)
stream = BinaryStream(data=data, filename=filename)
del data
(sig, platform, version, attribs, size) = stream.unpack(_XNB_HEADER)
if sig != XNB_SIGNATURE:
raise ReaderError("bad sig: '{!r}'".format(sig))
if platform not in XNB_PLATFORMS:
raise ReaderError("bad platform: '{!r}'".format(platform))
if version not in XNB_VERSIONS:
raise ReaderError("bad version: {}".format(version))
stream_length = stream.length()
if stream_length != size:
raise ReaderError("bad size: {} != {}".format(stream_length, size))
compressed = False
profile = 0
if version >= VERSION_40:
profile = attribs & _PROFILE_MASK
if profile not in XNB_PROFILES:
raise ReaderError("bad profile: {}".format(profile))
if version >= VERSION_30:
compressed = bool(attribs & _COMPRESS_MASK)
size -= stream.calc_size(_XNB_HEADER)
if compressed:
uncomp = stream.read_int32()
size -= 4
content_comp = stream.read(size)
content = decompress(content_comp, uncomp)
else:
content = stream.read(size)
return cls(content,
platform,
version,
profile,
compressed,
parse=parse,
expected_type=expected_type)
