[BATIK-593] [PATCH] Slow Rendering on Mac OS X 'Tiger'

• Type: Bug
• Status: Resolved
• Resolution: Fixed
• Affects Version/s: 1.6
• Component/s: GVT
• Environment: Operating System: other; Platform: Other
• Assignee: Batik Developer's Mailing list
• Reporter: Thomas DeWeese
• Created: 22/Sep/05 13:38
• Updated: 04/Oct/05 03:14
• Resolved: 13/Oct/05 06:27

Description

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.