Planning for

Chris Newland cnewland at
Thu Dec 8 06:07:41 UTC 2016

Hi Jonathan,

+1 to that list for me.

In my experience JavaFX performs well for the "low-level" (Canvas +
GraphicsContext) stuff with one exception - the PixelWriter APIs appear do
a lot of array duplication and copying under the hood which I believe can
be optimised. I'll investigate further and try to come up with a patch.

Nice to have (but lower priority than everything on the list) would be a
public API for grabbing frames from a MediaPlayer which used to be
possible in 8 with player.impl_getLatestFrame().

Echoing Tom and Felix, my #1 priority would be fixing scenegraph
performance as tables with large row counts and charts (e.g. XYChart) with
large numbers of data points (e.g. 50K) in their Series can easily lead to
multi-second render times and huge heap usage.

Thanks for opening this discussion,


On Wed, December 7, 2016 23:45, Jonathan Giles wrote:
> Hi folks,
> Development on JDK 9 is slowly starting to ramp down, and we are
> starting to turn our attention to the goals for JavaFX in JDK 10 and
> beyond. We are starting to compile our list of what we think is important,
> but we really want to hear from the community about what their highest
> priorities are to them. As always, it's important to keep in mind what
> JavaFX is (e.g. it isn't aiming to be a high-performance
> game engine), but even still there are bound to be a number of places where
> people might want to weigh in, for example:
> * New layout containers (e.g. Flexbox)
> * Public APIs for UI control behaviors
> * Marlin renderer enabled by default
> * Support for CSS animations
> * CSS performance improvements
> * TableView improvements (cell spanning, row / column freezing, etc)
> * TableView performance
> * Focus traversal API
> * WebGL support in WebView
> * Improved image I/O support
> * A JavaFX equivalent of the AWT Desktop APIs
> * Multi-res image API
> * NIO-backed writable images
> If there are other areas of interest that aren't listed here, please
> start discussing them and we can work together to determine priorities. If
> all you want to do is add a +1 for one of more of the items above, even
> that will be very useful.
> Thanks,
> -- Jonathan

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