feat(fx): add effect rack and effect units

2026-09-08 14:55:22 +02:00
parent 4021b9cdf7
commit 5a80534a2e
21 changed files with 1104 additions and 0 deletions
@@ -0,0 +1,27 @@
+#pragma once
+
+#include "../FXProcessor.h"
+#include "Biquad.h"
+
+namespace serum
+{
+
+// ===========================================================================
+// Distortion — waveshaper with drive and a post lowpass tone. p[0]=drive,
+// p[1]=shape (soft/hard/fold), p[2]=tone, p[3]=output.
+// ===========================================================================
+class DistortionUnit : public FXUnit
+{
+public:
+    void prepare (double sampleRate, int maxBlockSize) override;
+    void reset() override;
+    void process (float* l, float* r, int numSamples, const float p[4]) override;
+
+private:
+    double sr = 44100.0;
+    Biquad lpL, lpR;
+
+    static float shape (float x, float shapeParam) noexcept;
+};
+
+} // namespace serum