convolution plugins: Disable signal path when deactivating

2 files changed, 16 insertions, 1 deletions

diff --git a/plugins/ZamVerb/ZamVerbPlugin.cpp b/plugins/ZamVerb/ZamVerbPlugin.cpp
index 1bb3db3..0668ee3 100644
--- a/plugins/ZamVerb/ZamVerbPlugin.cpp
+++ b/plugins/ZamVerb/ZamVerbPlugin.cpp
@@ -24,6 +24,7 @@ START_NAMESPACE_DISTRHO
 ZamVerbPlugin::ZamVerbPlugin()
     : Plugin(paramCount, 1, 1) // 1 program, 1 states
 {
+    signal = false;
     swap = 0;
     clv[swap] = new LV2convolv();
     clv[swap]->clv_configure("convolution.ir.preset", "0");
@@ -162,7 +163,13 @@ void ZamVerbPlugin::loadProgram(uint32_t index)
 
 void ZamVerbPlugin::activate()
 {
-        setState("reload", "");
+	setState("reload", "");
+	signal = true;
+}
+
+void ZamVerbPlugin::deactivate()
+{
+	signal = false;
 }
 
 String ZamVerbPlugin::getState(const char*) const
@@ -199,6 +206,12 @@ void ZamVerbPlugin::run(const float** inputs, float** outputs, uint32_t frames)
 	int nprocessed;
 	active = swap;
 
+	if (!signal) {
+		memcpy(outputs[0], inputs[0], frames * sizeof(float));
+		memcpy(outputs[1], inputs[1], frames * sizeof(float));
+		return;
+	}
+
 	assert(frames < 8192);
 	memcpy(tmpins[0], inputs[0], frames * sizeof(float));
 	memcpy(tmpins[1], inputs[1], frames * sizeof(float));
diff --git a/plugins/ZamVerb/ZamVerbPlugin.hpp b/plugins/ZamVerb/ZamVerbPlugin.hpp
index a2c94c7..c4c96b0 100644
--- a/plugins/ZamVerb/ZamVerbPlugin.hpp
+++ b/plugins/ZamVerb/ZamVerbPlugin.hpp
@@ -112,11 +112,13 @@ protected:
 	}
 
     void activate() override;
+    void deactivate() override;
     void run(const float** inputs, float** outputs, uint32_t frames) override;
 
     LV2convolv *clv[2];
     int8_t swap;
     int8_t active;
+    bool signal;
     // -------------------------------------------------------------------
 
     float **tmpouts;