8u40 review request: RT-37793 performance problems in Canvas temp and clip buffers
james.graham at oracle.com
Thu Jul 10 22:43:55 UTC 2014
This particular bug has nothing to do with rectangular clipping, this is
improving shape clipping instead.
Also, the fix involved actually isn't really any change to the clipping.
It just so happens that the clipping code in Canvas was the heaviest
user of the code that clears the temp buffer (isolated to Canvas) that
was not using the fastest clear method.
The node clipping code uses an entirely different implementation that
relies on the Decora effect code which already does the clears in the
On 7/10/14 12:34 PM, Hervé Girod wrote:
> Hello, I have a question about this (sorry if you explained it before): does rectangular clipping on regular Nodes has / had the same performance problems than with the Canvas?
> Sent from my iPhone
>> On Jul 10, 2014, at 21:19, Jim Graham <james.graham at oracle.com> wrote:
>> Jira: http://cr.openjdk.java.net/~flar/RT-37793/webrev.00/
>> webrev: http://cr.openjdk.java.net/~flar/RT-37793/webrev.00/
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