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Add a workaround for levels layer from clipstudio paint export #470

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Merged
merged 1 commit into from
Jun 6, 2025
Merged

Add a workaround for levels layer from clipstudio paint export #470

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15 changes: 12 additions & 3 deletions src/psd_tools/psd/adjustments.py
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Original file line number Diff line number Diff line change
Expand Up @@ -563,9 +563,18 @@ def read(cls, fp, **kwargs):
extra_version = None
if is_readable(fp, 6):
signature, extra_version = read_fmt("4sH", fp)
assert signature == b"Lvls", "Invalid signature %r" % (signature)
assert extra_version == 3, "Invalid extra version %d" % (extra_version)
count = read_fmt("H", fp)[0]
if signature == b"ls\x00\x03":
# Clip Studio Paint has a buggy signature.
logger.warning(
"Invalid signature %r, assuming b'Lvls'." % (signature)
)
count = extra_version
elif signature != b"Lvls":
raise ValueError("Invalid signature %r" % (signature))
elif extra_version != 3:
raise ValueError("Invalid extra version %d" % (extra_version))
else:
count = read_fmt("H", fp)[0]
items += [LevelRecord.read(fp) for _ in range(count - 29)]

return cls(version=version, extra_version=extra_version, items=items)
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