"Hashar" changed the status of MediaWiki.r108141 to "fixme"
URL: http://www.mediawiki.org/wiki/Special:Code/MediaWiki/108141

Old status:  new
> New status: fixme

Commit summary for MediaWiki.r108141:

rewrite getXCFMetaData() to get ride of im identify

By reading the file header and unpacking the data, we can avoid
shelling out to imagemagick 'identify'. Save up some CPU cycles :D

An XCF is made of a canvas of a given width / height, the various
layers are applied to it which must fit in the canvas. So we just
use the canvas size :-)

I do not think we have any usage for channels count, so I have just
skip that part. I am not sure it makes any sense when the picture
can be made of several layers each using different channels count.

Bits per color is always 8 per definition. Grayscale is 0 - 255
and indexed palette is 256 colors at most.

XCF spec:
http://svn.gnome.org/viewvc/gimp/trunk/devel-docs/xcf.txt?view=markup

pack() / unpack() is familiar to perl monkeys


Fully reimplements r107351

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