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Fix test failure when optimizing the palette on mode L gifs

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wiredfool 2014-03-04 21:43:11 -08:00
parent 6457eed2cb
commit a77ee2d8c5
1 changed files with 6 additions and 0 deletions
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6
PIL/GifImagePlugin.py
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@ -252,6 +252,12 @@ def _save(im, fp, filename):
except KeyError:
palette = None
im.encoderinfo["optimize"] = im.encoderinfo.get("optimize", True)
if im.encoderinfo["optimize"]:
# When the mode is L, and we optimize, we end up with
# im.mode == P and rawmode = L, which fails.
# If we're optimizing the palette, we're going to be
# in a rawmode of P anyway.
rawmode = 'P'
header, usedPaletteColors = getheader(imOut, palette, im.encoderinfo)
for s in header: