Added DaisySP

daisysp/Utility/metro.h

@@ -0,0 +1,54 @@
+/*
+Copyright (c) 2020 Electrosmith, Corp
+
+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_METRO_H
+#define DSY_METRO_H
+#include <stdint.h>
+#ifdef __cplusplus
+
+namespace daisysp
+{
+/** Creates a clock signal at a specific frequency.
+*/
+class Metro
+{
+  public:
+    Metro() {}
+    ~Metro() {}
+    /** Initializes Metro module.
+        Arguments:
+        - freq: frequency at which new clock signals will be generated
+            Input Range: 
+        - sample_rate: sample rate of audio engine
+            Input range: 
+    */
+    void Init(float freq, float sample_rate);
+
+    /** checks current state of Metro object and updates state if necesary.
+    */
+    uint8_t Process();
+
+    /** resets phase to 0
+    */
+    inline void Reset() { phs_ = 0.0f; }
+    /** Sets frequency at which Metro module will run at.
+    */
+    void SetFreq(float freq);
+
+    /** Returns current value for frequency.
+    */
+    inline float GetFreq() { return freq_; }
+
+  private:
+    float freq_;
+    float phs_, sample_rate_, phs_inc_;
+};
+} // namespace daisysp
+#endif
+#endif