Added DaisySP

2026-04-24 14:46:05 +02:00
parent 82190216c3
commit dd63b3aed4
96 changed files with 10613 additions and 0 deletions
@@ -0,0 +1,37 @@
+#include <math.h>
+#include "crossfade.h"
+#include "dsp.h"
+
+#define REALLYSMALLFLOAT 0.000001f
+
+using namespace daisysp;
+
+const float kCrossLogMin = logf(REALLYSMALLFLOAT);
+const float kCrossLogMax = logf(1.0f);
+
+float CrossFade::Process(float &in1, float &in2)
+{
+    float scalar_1, scalar_2;
+    switch(curve_)
+    {
+        case CROSSFADE_LIN:
+            scalar_1 = pos_;
+            return (in1 * (1.0f - scalar_1)) + (in2 * scalar_1);
+
+        case CROSSFADE_CPOW:
+            scalar_1 = sinf(pos_ * HALFPI_F);
+            scalar_2 = sinf((1.0f - pos_) * HALFPI_F);
+            return (in1 * scalar_2) + (in2 * scalar_1);
+
+        case CROSSFADE_LOG:
+            scalar_1
+                = expf(pos_ * (kCrossLogMax - kCrossLogMin) + kCrossLogMin);
+            return (in1 * (1.0f - scalar_1)) + (in2 * scalar_1);
+
+        case CROSSFADE_EXP:
+            scalar_1 = pos_ * pos_;
+            return (in1 * (1.0f - scalar_1)) + (in2 * scalar_1);
+
+        default: return 0;
+    }
+}