From ed1c33f8a60b2e34c78473c2c1392fb3b809e524 Mon Sep 17 00:00:00 2001
From: Harald Eilertsen <haraldei@anduin.net>
Date: Thu, 16 Jul 2020 23:08:11 +0200
Subject: LV2: Move actual processing into Acceleration class.

---
 plugins/LV2/src/Acceleration/Acceleration.cpp | 84 ++++++++++++++++-----------
 1 file changed, 50 insertions(+), 34 deletions(-)

diff --git a/plugins/LV2/src/Acceleration/Acceleration.cpp b/plugins/LV2/src/Acceleration/Acceleration.cpp
index 669df75..9be24cd 100644
--- a/plugins/LV2/src/Acceleration/Acceleration.cpp
+++ b/plugins/LV2/src/Acceleration/Acceleration.cpp
@@ -17,6 +17,53 @@ enum PortIndex {
 
 class Acceleration {
 public:
+    Acceleration(double rate)
+        : rate(rate)
+    {
+    }
+
+    void connect_port(uint32_t port, void * data)
+    {
+        switch (port) {
+            case ACCELERATION_LIMIT:
+                limit = (const float *) data;
+                break;
+
+            case ACCELERATION_DRYWET:
+                drywet = (const float *) data;
+                break;
+
+            case ACCELERATION_IN_L:
+                in[0] = (const float *) data;
+                break;
+
+            case ACCELERATION_IN_R:
+                in[1] = (const float *) data;
+                break;
+
+            case ACCELERATION_OUT_L:
+                out[0] = (float *) data;
+                break;
+
+            case ACCELERATION_OUT_R:
+                out[1] = (float *) data;
+                break;
+
+            default:
+                std::cerr << "Invalid port " << port << ": ignoring." << std::endl;
+        }
+    }
+
+    void run(uint32_t num_samples)
+    {
+        for (auto i = 0u; i < num_samples; i++) {
+            *out[0]++ = *in[0]++ * *limit;
+            *out[1]++ = *in[1]++ * *limit;
+        }
+    }
+
+private:
+    double rate;
     const float * limit;
     const float * drywet;
     const float * in[2];
@@ -29,7 +76,7 @@ LV2_Handle instantiate(
         const char * path,
         const LV2_Feature * const * features)
 {
-    return new Acceleration{};
+    return new Acceleration{rate};
 }
 
 void connect_port(
@@ -38,35 +85,7 @@ void connect_port(
         void * data)
 {
     auto accel = static_cast<Acceleration *>(instance);
-
-    switch (port) {
-        case ACCELERATION_LIMIT:
-            accel->limit = (const float *) data;
-            break;
-
-        case ACCELERATION_DRYWET:
-            accel->limit = (const float *) data;
-            break;
-
-        case ACCELERATION_IN_L:
-            accel->in[0] = (const float *) data;
-            break;
-
-        case ACCELERATION_IN_R:
-            accel->in[1] = (const float *) data;
-            break;
-
-        case ACCELERATION_OUT_L:
-            accel->out[0] = (float *) data;
-            break;
-
-        case ACCELERATION_OUT_R:
-            accel->out[1] = (float *) data;
-            break;
-
-        default:
-            std::cerr << "Invalid port " << port << ": ignoring." << std::endl;
-    }
+    accel->connect_port(port, data);
 }
 
 void activate(LV2_Handle instance)
@@ -76,10 +95,7 @@ void activate(LV2_Handle instance)
 void run(LV2_Handle instance, uint32_t num_samples)
 {
     auto accel = static_cast<Acceleration *>(instance);
-    for (auto i = 0u; i < num_samples; i++) {
-        *accel->out[0]++ = *accel->in[0]++;
-        *accel->out[1]++ = *accel->in[1]++;
-    }
+    accel->run(num_samples);
 }
 
 void deactivate(LV2_Handle)
-- 
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