Added DaisySP

daisysp/Utility/metro.cpp

@@ -0,0 +1,30 @@
+#include <math.h>
+#include "metro.h"
+#include "dsp.h"
+
+using namespace daisysp;
+
+void Metro::Init(float freq, float sample_rate)
+{
+    freq_        = freq;
+    phs_         = 0.0f;
+    sample_rate_ = sample_rate;
+    phs_inc_     = (TWOPI_F * freq_) / sample_rate_;
+}
+
+uint8_t Metro::Process()
+{
+    phs_ += phs_inc_;
+    if(phs_ >= TWOPI_F)
+    {
+        phs_ -= TWOPI_F;
+        return 1;
+    }
+    return 0;
+}
+
+void Metro::SetFreq(float freq)
+{
+    freq_    = freq;
+    phs_inc_ = (TWOPI_F * freq_) / sample_rate_;
+}