Merge pull request #10 from Boof2015/VSTs

Add cross platform VSTs

src/plugin-ui/BridgeLUFSMeterAnalyzer.ts

@@ -0,0 +1,34 @@
+import type { LUFSMeterNativeAnalyzer, LUFSMeterNativeSnapshot } from '../renderer/audio/native'
+
+/**
+ * Drop-in `LUFSMeterNativeAnalyzer` for the plugin webview.
+ *
+ * The loudness DSP (K-weighting, gated integration, fast VU/peak/correlation) runs
+ * in the C++ plugin, which pushes a finished scalar snapshot each frame. This shim
+ * caches that snapshot and serves it through the interface `LUFSMeter` consumes.
+ * `pushSamples` is a no-op (audio never flows through the webview); `reset` clears
+ * only the cache (the C++ integrator keeps its own state).
+ */
+export class BridgeLUFSMeterAnalyzer implements LUFSMeterNativeAnalyzer {
+  private snapshot: LUFSMeterNativeSnapshot | null = null
+
+  /** Called by the bridge whenever the host emits a new LUFS frame. */
+  setSnapshot(snapshot: LUFSMeterNativeSnapshot): void {
+    this.snapshot = snapshot
+  }
+
+  isAvailable(): boolean {
+    return true
+  }
+
+  setSampleRate(_sampleRate: number): void {}
+  pushSamples(_left: Float32Array, _right: Float32Array): void {}
+
+  getSnapshot(): LUFSMeterNativeSnapshot | null {
+    return this.snapshot
+  }
+
+  reset(): void {
+    this.snapshot = null
+  }
+}