Using PolyLine and drawing less points. #1
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WaveEdit used 50% of my MacBook Pro 2015 CPU when completely idle.
The culprit was
renderBankGridwhich needs to draw so many lines (just commenting itdropped usage to 13%).
Drawing only a fourth of the points and using AddPolyLine (which draws them all together),
I managed to get the CPU usage down to 20%.
(I know "CPU usage" is a weak measure, I did check v-sync-less framerate too)
This of course means the preview waves lose some resolution, so no hard feelings if you don't wanna merge this 😁
(I guess the "correct" way to do this is some kind of interpolation)