* made cols/rows integer, to avoid that "cols-x" wraps around
* pre-compute some expressions that don't depend on loop counters
--> wins us 1-4 fps on my 72x72 test setup
* add more accurate version of map() - reduces slight flickering in some 2D effects
* cache fftResult[] in effects (um_data->fftresult might get updated while the effect still calculates)
Only draw what will be visible.
This is a pretty solid speed increase when the adjacent bar is close in height, or if it's taller and would occlude it anyway, it'll be skipped.
* adding a _fast_ variant of SetPixelColorXY, that does not perform any error checking.
* drawLine uses the fast setPixelColor variant (bresenham algo only)
* for TESTING: segment option "reverse" switches back to the "original slow" code.
surely needs some more optimization and improvements.
First test on GEQ 3D shows 10%-30% speedup
Bug fixes after lots of testing, better settings, etc.
Big thanks to @netmindz for restructuring the code.
Add rough distance stop to Segment::drawLine()
AC minor patch cluster
* Anti-Aliased Lines and Circles
* replacing deprecated functions in ws.cpp
* using global brightness in analogue clock overlay
* fix for palette names (custom palettes)
* bugfix for UI: when resizing the window, it always jumped to the Colors tab
* UI: add webpage shortcuts for tabs
Full audio fastpath (part2)
This PR allows the audio core to deliver sound data and FFT results 2x faster (43 sps --> 87 sps).
Frequency reactive effects (GEQ, FreqMap, DJLight) will have improved "on-spot" reactions, and will typically react to audio changes within 10-20 milliseconds.
Volume reactive effect will react a bit better (but still lagging behind, due to legacy filtering design that was created when only low-quality analog mics were available). You can try changing the "Mic Quality" option to _low noise_ this will further reduce latency.
Limitations
* only works on esp32-S3 and classic esp32, due to higher CPU load for FFT
* Will not work well with analog microphone
* If your LEDs fixture achieves less than 60-80 fps, you will probably not see a difference.
* mic quality: When set to "low noise" or "perfect", only minimal smoothing is performed on the "Mic Volume" input.
Every filter adds a delay, so this option can lead to better on-spot responses from effects.
* cleanup: removed a few unused variables and unused code.
