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List:       batik-dev
Subject:    DO NOT REPLY [Bug 36769]  New:  -
From:       bugzilla () apache ! org
Date:       2005-09-22 11:38:30
Message-ID: 20050922113830.704A5DF () ajax ! apache ! org
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http://issues.apache.org/bugzilla/show_bug.cgi?id=36769

           Summary: [PATCH] Slow Rendering on Mac OS X 'Tiger'
           Product: Batik
           Version: 1.6
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: GVT
        AssignedTo: batik-dev@xml.apache.org
        ReportedBy: deweese@apache.org


This bug is for tracking the problem of slow rendering
on Mac OS X Tiger.  The basic issue is summed up in the 
following Apple java-developer links:

http://lists.apple.com/archives/java-dev/2005/May/msg00498.html
http://lists.apple.com/archives/Java-dev/2005/Jul/msg00009.html
http://lists.apple.com/archives/java-dev/2005/Aug/msg00381.html

   The short summary is that if you ever gain access to
the underlaying data array from a BufferedImage than all
Graphics2D calls to that BufferedImage will involve copying
the entire BufferedImage back and forth between main memory
and the GPU.

   I will attach a patch (really a new file) that attempts to
work around this in the worst and most common case.

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