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From bugzi...@apache.org
Subject [Bug 51149] 20x slowdown in PNG processing when switching from JDK 1.6.0_17 to 1.6.0_18
Date Fri, 01 Jun 2012 13:37:24 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=51149

--- Comment #6 from Luis Bernardo <lmpmbernardo@gmail.com> ---
Created attachment 28871
  --> https://issues.apache.org/bugzilla/attachment.cgi?id=28871&action=edit
this patch speeds up performance for certain kinds of PNG images

this patch addresses the issue described here:
http://old.nabble.com/change-to-PNGImageReader-in-jdk1.6_14-impacts-performance-with-some-PNG-images-td33271018.html#a33271018.

Note: the approach implemented in this patch was suggested by Jeremias. The
implementation and any mistakes, are mine.

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