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Minor improvement, one less copy

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This commit is contained in:
Andrew Murray 2015-08-24 21:56:23 +10:00
parent 88fca0f555
commit e88e90b8ed
1 changed files with 2 additions and 2 deletions
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4
PIL/GifImagePlugin.py
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@ -357,7 +357,7 @@ def _save(im, fp, filename, save_all=False):
fp.write(s)
else:
# delta frame
delta = ImageChops.subtract_modulo(im_frame, previous)
delta = ImageChops.subtract_modulo(im_frame, previous.copy())
bbox = delta.getbbox()
if bbox:
@ -368,7 +368,7 @@ def _save(im, fp, filename, save_all=False):
else:
# FIXME: what should we do in this case?
pass
previous = im_frame.copy()
previous = im_frame
else:
header = getheader(im_out, palette, im.encoderinfo)[0]
for s in header: