def get_blob(image, format, compression, # @ReservedAssignment
quality):
with state(image, compression=compression, compression_quality=quality):
format = format.upper() # @ReservedAssignment
old_format = c_call('magick', 'get_format', image)
c_call('magick', 'set_format', image, format)
size = c_size_t()
result = c_call(image, ('get', 'blob'), byref(size))
#from nose.tools import set_trace; set_trace()
blob = string_at(result, size.value)
c_call('magick_', 'relinquish_memory', result)
c_call('magick', 'set_format', image, old_format)
return blob
def handle_result(result, restype, args, argtypes):
if restype == c_char_p:
result = native_str(result)
if restype in (c_uint, c_ssize_t, c_size_t):
result = int(result)
elif restype == enum and not jython:
result = result.value
elif restype == MagickBoolean and not result:
exc_type = ExceptionType()
if argtypes[0] == MagickWand_p:
klass = 'magick'
elif argtypes[0] == PixelWand_p:
klass = 'pixel'
description = c_call(klass, 'get_exception', args[0], byref(exc_type))
try:
raise PystaciaException(native_str(string_at(description)))
finally:
c_call('magick_', 'relinquish_memory', description)
return result
def get_blob(
image,
format,
compression, # @ReservedAssignment
quality):
with state(image, compression=compression, compression_quality=quality):
format = format.upper() # @ReservedAssignment
old_format = c_call('magick', 'get_format', image)
c_call('magick', 'set_format', image, format)
size = c_size_t()
result = c_call(image, ('get', 'blob'), byref(size))
#from nose.tools import set_trace; set_trace()
blob = string_at(result, size.value)
c_call('magick_', 'relinquish_memory', result)
c_call('magick', 'set_format', image, old_format)
return blob
