Codex
83 lines
2.7 KiB
JavaScript
83 lines
2.7 KiB
JavaScript
import { synthesizeMicrophoneSignals } from "/packages/acoustics-core/propagation.js";
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import { computeDasWithBackend } from "/packages/webgpu-kernels/compute.js";
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function post(type, jobId, payload = {}, transfer = []) {
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self.postMessage({ type, jobId, ...payload }, transfer);
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}
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function serializeError(error) {
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return {
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name: error?.name ?? "Error",
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code: error?.code ?? "",
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message: error instanceof Error ? error.message : String(error),
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stack: error?.stack ?? "",
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causes: error instanceof AggregateError
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? error.errors.map((cause) => ({ name: cause?.name, code: cause?.code, message: cause?.message }))
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: [],
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};
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}
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self.addEventListener("message", async (event) => {
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if (event.data?.type !== "run") return;
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const { jobId, scene, arrayDefinition, experiment, assetBuffers } = event.data;
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const totalStartedAt = performance.now();
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try {
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post("progress", jobId, { stage: "signal", message: "192채널 자유음장 신호를 합성하고 있습니다…" });
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const signalStartedAt = performance.now();
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const synthesis = synthesizeMicrophoneSignals({
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scene,
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arrayDefinition,
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assetBuffers,
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minimumDistance: experiment.beamforming.minimumDistance,
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});
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const signalGeneration = performance.now() - signalStartedAt;
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post("progress", jobId, {
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stage: "signal-complete",
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message: `마이크 신호 합성 완료 · ${signalGeneration.toFixed(0)} ms`,
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});
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const beamformingStartedAt = performance.now();
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const das = await computeDasWithBackend({
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channels: synthesis.channels,
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sampleRate: synthesis.sampleRate,
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arrayDefinition,
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scene,
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experiment,
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onFallback: ({ error }) =>
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post("fallback", jobId, {
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code: error.code,
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message: error.message,
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}),
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onProgress: (progress) => post("progress", jobId, { stage: progress.stage, progress }),
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});
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const beamforming = performance.now() - beamformingStartedAt;
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const transfer = [];
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for (const band of das.bands) {
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transfer.push(band.rawMap.buffer, band.displayMap.buffer);
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}
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post(
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"result",
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jobId,
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{
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run: {
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...das,
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signalStats: {
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preNormalizationPeak: synthesis.preNormalizationPeak,
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appliedScale: synthesis.appliedScale,
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clippedSampleCount: synthesis.clippedSampleCount,
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peak: synthesis.peak,
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},
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timingMs: {
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total: performance.now() - totalStartedAt,
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signalGeneration,
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beamforming,
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},
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},
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},
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transfer,
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);
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} catch (error) {
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post("error", jobId, { error: serializeError(error) });
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}
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});
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