LV2: Reset state on activate.

This makes sure all internal parameters are initializet to sane values
before processing starts. The VST version does this on construction, but
it seems better (at least for LV2) to do this as part of the activate
callback.

This should fix noise on the start of the audio processing with the
plugins.

2 files changed, 17 insertions, 0 deletions

diff --git a/plugins/LV2/src/Aura/Aura.cpp b/plugins/LV2/src/Aura/Aura.cpp
index cb205ce..78f650d 100644
--- a/plugins/LV2/src/Aura/Aura.cpp
+++ b/plugins/LV2/src/Aura/Aura.cpp
@@ -7,6 +7,22 @@ Aura::Aura(double rate)
 {
 }
 
+void Aura::activate()
+{
+	for(int count = 0; count < 21; count++) {
+		bL[count] = 0.0;
+		bR[count] = 0.0;
+		f[count] = 0.0;
+	}
+	lastSampleL = 0.0;
+	previousVelocityL = 0.0;
+	lastSampleR = 0.0;
+	previousVelocityR = 0.0;
+
+	fpNShapeL = 0.0;
+	fpNShapeR = 0.0;
+}
+
 void Aura::run(uint32_t num_samples)
 {
     A = *params[0];
diff --git a/plugins/LV2/src/Aura/Aura.h b/plugins/LV2/src/Aura/Aura.h
index 5692234..5328ffb 100644
--- a/plugins/LV2/src/Aura/Aura.h
+++ b/plugins/LV2/src/Aura/Aura.h
@@ -7,6 +7,7 @@ class Aura : public LV2Plugin<2> {
 public:
     Aura(double rate);
 
+    void activate() override;
     void run(uint32_t num_samples);
 
     static constexpr const char * URI = "https://www.airwindows.com/aura";