Add method to save a JavaFX image to file without the use of SwingFXUtils?

[John Neffenger]

On 5/4/21 5:08 AM, Frank Delporte wrote:
> I researched this topic for a few hours, but didn't manage to find a good approach to save a JavaFX Image.

For what it's worth, I ran 224 benchmarks to find the fastest method to 
go in the other direction: read in an image using AWT and convert it to 
a JavaFX image.

The results are posted here:

Benchmarks
https://jgneff.github.io/tofximage/

I found that the methods in SwingFXUtils are general enough that you can 
almost always write them to be much, much faster for your specific case.

The code of the benchmarks is here:

AWT to JavaFX Image Conversion Benchmarks
https://github.com/jgneff/tofximage

If you don't care about the alpha channel, this method came out tops:

public void setArgbAsArgbPre(SourceAwtImage, ...)
https://github.com/jgneff/tofximage/blob/b40a1e01238f1431295716ca09e4c40b82ac95d9/src/main/java/org/status6/tofximage/Benchmarks.java#L475

That method is shown below in a real application:

public void handle(long now)
https://github.com/jgneff/epd-javafx/blob/master/src/org/status6/epd/javafx/ImageAnimation.java#L172

John