⚡ Bolt: Hoist Sampler Voice closures via context to eliminate per-trigger allocation#826
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…rVoiceContext to reduce GC in hot path Hoisted `triggerVoice`, `runVoices`, and `playBufferSource` out of the `playSamplerVoice` hot path to the module level. Instead of relying on closure capture, we now build a `SamplerVoiceContext` object right after parameter resolution and pass it to these functions explicitly. This completely eliminates implicit closure capture and per-call memory reallocation, significantly reducing garbage collection pressure during dense polyphonic or glitch sequences. Co-authored-by: ford442 <9397845+ford442@users.noreply.github.com>
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…357978927072061843
Restore the hoisted SamplerVoiceContext closures from the PR branch instead of main's inline triggerVoice/runVoices/playBufferSource definitions. Merge bolt.md learnings from both branches and fix finalDest typing in triggerVoice for strict TypeScript.
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💡 What:
SamplerVoiceContextinterface to hold all resolved parameters and references.triggerVoice,runVoices, andplayBufferSourceclosures entirely out ofplaySamplerVoiceand to the module level, taking the explicit context as a parameter.playSamplerVoiceto populate and pass thisctxobject immediately after extracting and falling back all parameters.🎯 Why:
Previously, these heavy functions were redefined on every single trigger inside
playSamplerVoice, creating huge function closures that implicitly captured dozens of variables. In dense polyphonic chord playback or rapid glitch retriggers, this caused massive memory allocation and intense garbage collection overhead, leading to micro-stutters and main thread blockage.📊 Impact:
Drastically reduces per-trigger memory allocations for the Sampler voice hot path. The functions are defined exactly once. Garbage collection pauses during dense TTS / Sampler playback should be noticeably shorter or eliminated.
🔬 Measurement:
PR created automatically by Jules for task 2357978927072061843 started by @ford442