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auto un-VipsBlob-ification

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This commit is contained in:
John Cupitt 2014-09-03 17:54:36 +01:00
parent 8f39f8ba3b
commit 8a976a1e73
1 changed files with 21 additions and 9 deletions
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30
python/vips8/vips.py
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@ -68,7 +68,7 @@ class Argument:
# blob-ize
if GObject.type_is_a(self.prop.value_type, vips_type_blob):
if not isinstance(gi.repository.Vips.Blob, value):
if not isinstance(value, Vips.Blob):
value = Vips.Blob.new(None, value)
logging.debug('assigning %s' % self.prop.value_type)
@ -76,9 +76,17 @@ class Argument:
self.op.props.__setattr__(self.name, value)
def get_value(self):
x = self.op.props.__getattribute__(self.name)
value = self.op.props.__getattribute__(self.name)
return x
logging.debug('read out %s from %s' % (value, self.name))
# turn VipsBlobs into strings
# FIXME ... this will involve a copy, we should use
# buffer() instead
if isinstance(value, Vips.Blob):
value = value.get()
return value
def _call_base(name, required, optional, self = None, option_string = None):
logging.debug('_call_base name=%s, required=%s optional=%s' %
@ -151,24 +159,28 @@ def _call_base(name, required, optional, self = None, option_string = None):
if op2 == None:
raise Error('Error calling operator %s.' % name)
# find all required output args ... just need the names
# rescan args, op2 has changed
args = [Argument(op2, x) for x in op2.props]
args.sort(lambda a, b: a.priority - b.priority)
# find all required output args
# we can't check assigned here (since we captured the value before the call)
# but the getattr will test that for us anyway
required_output = [x.name for x in args if x.flags & enm.OUTPUT and
required_output = [x for x in args if x.flags & enm.OUTPUT and
x.flags & enm.REQUIRED]
# gather output args
out = []
for x in required_output:
out.append(op2.props.__getattribute__(x))
out.append(x.get_value())
# find all optional output args ... just need the names
# find all optional output args
optional_output = [x.name for x in args if x.flags & enm.OUTPUT and
not x.flags & enm.REQUIRED]
for x in optional.keys():
if x in optional_output:
out.append(op2.props.__getattribute__(x))
out.append(x.get_value())
if len(out) == 1:
out = out[0]
@ -176,7 +188,7 @@ def _call_base(name, required, optional, self = None, option_string = None):
# unref everything now we have refs to all outputs we want
op2.unref_outputs()
logging.debug('success, out = %s' % out)
logging.debug('success')
return out