[javascript-dev] JSui performance issues

Hello,

I'm re-building a graphic interface for the 4th time and it seems every 
approach is problematic.

To make it brief, you create/drag graphic objects made of one centered 
circle and one circle for the adjustable radius. Nothing fancy.

- Java UI : tremondously cpu hungry. Event handling is a nightmare
- Java based external sending messages to an LCD : less hungry but still 
unacceptable for realtime. Event handling still a nightmare
- C external sending messages to an LCD : very very good performances 
BUT i am limited to the LCD features (no alpha channel). Event handling 
still a nightmare
- JSui : Very handy event handling. Lots of drawing features. 
Antialiasing. Alpha channel. Unfortunately, tremondously cpu hungry.

I know my code is dirty at this point, but i've watched the same cpu 
spikes using technoui so i suspect it's JSui's law.

Is there anyway to have a sprite behavior in JSui (like in LCD) ? Or do 
i have to redraw all my things when i just want to move one without 
leaving traces behind (erase / redraw everything when you just change 
one thing) ?

This second solution seems to lead to HUUUUGE CPU usage (sometimes 100% 
of one core) when you got several things to draw.

At the time i'm writing, i have only 4 circles objects on my scene, and 
trying to change ones color continuously with a color swatch and a very 
simple frgb function (like you have in any jsui examples) makes my mouse 
stutter and my cpu goes to the clouds...

Max 4.6.3 / XP SP2 / DualCore 2.16Ghz / NVIDIA GeForce Go 7800 GTX

Thanks in advance

f.e

-- 
f.e chanfrault | aka | personal computer music
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