Added DaisySP

daisysp/Noise/dust.h

@@ -0,0 +1,62 @@
+/*
+Copyright (c) 2020 Electrosmith, Corp, Emilie Gillet
+
+Use of this source code is governed by an MIT-style
+license that can be found in the LICENSE file or at
+https://opensource.org/licenses/MIT.
+*/
+
+#pragma once
+#ifndef DSY_DUST_H
+#define DSY_DUST_H
+#include <cstdlib>
+#include <random>
+#include "Utility/dsp.h"
+#ifdef __cplusplus
+
+/** @file dust.h */
+
+namespace daisysp
+{
+/**  
+       @brief Dust Module
+       @author Ported by Ben Sergentanis 
+       @date Jan 2021 
+       Randomly Clocked Samples \n \n
+       Ported from pichenettes/eurorack/plaits/dsp/noise/dust.h \n
+       to an independent module. \n
+       Original code written by Emilie Gillet in 2016. \n
+
+*/
+class Dust
+{
+  public:
+    Dust() {}
+    ~Dust() {}
+
+    void Init() { SetDensity(.5f); }
+
+    float Process()
+    {
+        float inv_density = 1.0f / density_;
+        float u           = rand() * kRandFrac;
+        if(u < density_)
+        {
+            return u * inv_density;
+        }
+        return 0.0f;
+    }
+
+    void SetDensity(float density)
+    {
+        density_ = fclamp(density, 0.f, 1.f);
+        density_ = density_ * .3f;
+    }
+
+  private:
+    float                  density_;
+    static constexpr float kRandFrac = 1.f / (float)RAND_MAX;
+};
+} // namespace daisysp
+#endif
+#endif