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 +1,86 @@
+/*
+Copyright (c) 2020 Electrosmith, Corp, Paul Batchelor
+
+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_CROSSFADE_H
+#define DSY_CROSSFADE_H
+#include <stdint.h>
+#ifdef __cplusplus
+
+namespace daisysp
+{
+/** Curve applied to the CrossFade
+- LIN = linear
+- CPOW = constant power
+- LOG = logarithmic
+- EXP  exponential
+- LAST = end of enum (used for array indexing)
+*/
+enum
+{
+    CROSSFADE_LIN,
+    CROSSFADE_CPOW,
+    CROSSFADE_LOG,
+    CROSSFADE_EXP,
+    CROSSFADE_LAST,
+};
+
+/** Performs a CrossFade between two signals
+
+    Original author: Paul Batchelor
+
+    Ported from Soundpipe by Andrew Ikenberry
+
+    added curve option for constant power, etc.
+*/
+class CrossFade
+{
+  public:
+    CrossFade() {}
+    ~CrossFade() {}
+    /** Initializes CrossFade module
+        Defaults
+        - current position = .5
+        - curve = linear
+    */
+    inline void Init(int curve)
+    {
+        pos_   = 0.5f;
+        curve_ = curve < CROSSFADE_LAST ? curve : CROSSFADE_LIN;
+    }
+
+    /** Initialize with default linear curve 
+    */
+    inline void Init() { Init(CROSSFADE_LIN); }
+    /** processes CrossFade and returns single sample
+    */
+    float Process(float &in1, float &in2);
+
+
+    /** Sets position of CrossFade between two input signals
+        Input range: 0 to 1
+    */
+    inline void SetPos(float pos) { pos_ = pos; }
+    /** Sets current curve applied to CrossFade 
+    Expected input: See [Curve Options](##curve-options)
+    */
+    inline void SetCurve(uint8_t curve) { curve_ = curve; }
+    /** Returns current position
+    */
+    inline float GetPos(float pos) { return pos_; }
+    /** Returns current curve
+    */
+    inline uint8_t GetCurve(uint8_t curve) { return curve_; }
+
+  private:
+    float   pos_;
+    uint8_t curve_;
+};
+} // namespace daisysp
+#endif
+#endif