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webp: force block storage before decoding

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This reduce memory usage.
This commit is contained in:
Benoit Pierre 2015-02-27 12:52:19 +01:00
parent ea2ceab377
commit 30bee26b4a
1 changed files with 7 additions and 0 deletions
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7
PIL/WebPImagePlugin.py
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@ -162,6 +162,13 @@ class WebPImageFile(ImageFile.ImageFile):
self.decodermaxblock = 12 + i32le(header[4:8]) self.decodermaxblock = 12 + i32le(header[4:8])
self.decoderconfig = (1,) self.decoderconfig = (1,)
def load_prepare(self):
if not self.im:
# Hackety hack hack hack...
im = Image.core.new(self.mode, (0,0))
self.im = im.new_block(self.mode, self.size)
ImageFile.ImageFile.load_prepare(self)
def draft(self, mode, size): def draft(self, mode, size):
if 1 != len(self.tile): if 1 != len(self.tile):