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Fix saving 256x256 icons

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This commit is contained in:
hugovk 2016-11-30 14:50:53 +02:00
parent 4061c3836c
commit cc89d95f02
1 changed files with 4 additions and 3 deletions
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7
PIL/IcoImagePlugin.py
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@ -44,7 +44,7 @@ def _save(im, fp, filename):
fp.write(_MAGIC) # (2+2)
sizes = im.encoderinfo.get("sizes",
[(16, 16), (24, 24), (32, 32), (48, 48),
(64, 64), (128, 128), (255, 255)])
(64, 64), (128, 128), (256, 256)])
width, height = im.size
filter(lambda x: False if (x[0] > width or x[1] > height or
x[0] > 255 or x[1] > 255) else True, sizes)
@ -52,8 +52,9 @@ def _save(im, fp, filename):
offset = fp.tell() + len(sizes)*16
for size in sizes:
width, height = size
fp.write(struct.pack("B", width)) # bWidth(1)
fp.write(struct.pack("B", height)) # bHeight(1)
# 0 means 256
fp.write(struct.pack("B", width if width < 256 else 0)) # bWidth(1)
fp.write(struct.pack("B", height if height < 256 else 0)) # bHeight(1)
fp.write(b"\0") # bColorCount(1)
fp.write(b"\0") # bReserved(1)
fp.write(b"\0\0") # wPlanes(2)