Introduce a CriticalSection controlLock separating control-thread
state (matrix, macros, controlLfos) from audio-thread snapshots
(audioMatrix, audioMacros, lfos). captureControls() copies under
lock at the start of each processBlock; the audio thread never
touches control state directly. Cache parameter values in an
unordered_map keyed by string_view to avoid per-sample APVTS lookups.
Prebuild wavetables in the constructor instead of lazy allocation.
Resize mixBuffer only in prepare(), not per block. Render MIDI
events at their sample positions using sub-block rendering with
renderUntil(), so notes start at the correct sub-sample offset.
Make RaveController non-destructive: replace APVTS mutation with a
static apply() that boosts the RenderContext and FX slots for the
current block only. Remove the snapshot/restore machinery.
Make currentProgram atomic. Validate state I/O: check XML tag,
clamp program index, sanitize LFO shape data, and use
beginChangeGesture/endChangeGesture for RAVE toggle. Reset
parameters to defaults before loading preset values.
biggy