Stream 7 wires nisps/ml + nisps/engines into the playground via Emscripten.
Highlights:
- nisps/wasm/bindings.cpp: flat C API per architecture.md §6.2. Fixed-arch
MLP<2, 10, 14, 18, 126>; engine string→type dispatch table with NoOp
fallback.
- scripts/build-wasm.sh: emcc invocation, MODULARIZE=1, exports listed
explicitly; produces playground/public/nisps.{js,wasm}.
- playground/src/ml/wasm-iml.ts: main-thread MLP host (sync inference,
sync training, RL ops, weights I/O, layer stats, localStorage).
- playground/src/ml/wasm-worker.ts: disposable Web Worker for off-thread
async training, owns its own WASM instance.
- playground/src/ml/dataset.ts: Float32Array-backed FIFO with sample-weight
modes (uniform/global/local/combined). Port of legacy dataset.js.
- playground/src/audio/engine-host.ts: AudioContext + AudioWorkletNode
lifecycle, with start/stop/setEngine/setParams.
- playground/src/audio/worklet/nisps-processor.ts: WASM-loading
AudioWorkletProcessor that runs engine.process_block per 128-sample
block. Loads its own WASM instance from main-thread-supplied bytes
(no fetch in worklet).
- playground/src/stores/ml-store.ts: wired stub methods to WasmIML
singleton; lazy initialize().
- playground/src/debug/probe.ts: window.__nisps now calls real WasmIML
via the store; lazy-init on first use.
Verified:
- bash scripts/build-wasm.sh succeeds (94 KB nisps.wasm)
- bun run typecheck OK
- bun run build OK (production bundle)
- vite dev server serves /nisps.{js,wasm} with COOP/COEP
Known limitation: WASM is fixed at one MLP shape. Multi-arch deferred —
documented in nisps/wasm/README.md.
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