From dc63930e8774897d0ed9a3c02b596fbad3b754a0 Mon Sep 17 00:00:00 2001
From: Georg Krause <mail@georg-krause.net>
Date: Thu, 5 Jul 2018 21:51:26 +0200
Subject: [PATCH] apply smoothing to fx send button

---
 src/jacksendreturn.cxx | 14 ++++++--------
 src/jacksendreturn.hxx |  2 ++
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/jacksendreturn.cxx b/src/jacksendreturn.cxx
index 2b3be95..061a79e 100644
--- a/src/jacksendreturn.cxx
+++ b/src/jacksendreturn.cxx
@@ -17,6 +17,7 @@ JackSendReturn::JackSendReturn(int trackid, AudioProcessor *prev, jack_client_t
 	sprintf(name, "Return_track_%d_r\n",trackid_human);
 	_returnPortR=jack_port_register(client,name,JACK_DEFAULT_AUDIO_TYPE,JackPortIsInput,0);
 	_active=false;
+	_activeLag = 0;
 	_counter=0;
 }
 
@@ -56,19 +57,16 @@ void JackSendReturn::process(unsigned int nframes, Buffers *buffers)
 
 		sendL[i] = _sendVolLag * sendtrackL[i];
 		sendR[i] = _sendVolLag * sendtrackR[i];
+
+		_activeLag += SMOOTHING_CONST * (float(_active) - _activeLag);
+
+		rettrackL[i] = retL[i] * _activeLag + sendtrackL[i] * std::fabs(_activeLag - 1);
+		rettrackR[i] = retR[i] * _activeLag + sendtrackR[i] * std::fabs(_activeLag - 1);
 	}
 
 	if(offset)
 		assert(offset+nframes==buffers->nframes);
 
-	if(_active) {
-		memcpy(rettrackL,retL,nframes*sizeof(float));
-		memcpy(rettrackR,retR,nframes*sizeof(float));
-	}
-	else {
-		memcpy(rettrackL, sendtrackL,nframes*sizeof(float));
-		memcpy(rettrackR, sendtrackR,nframes*sizeof(float));
-	}
 	_counter+=nframes;
 
 }
diff --git a/src/jacksendreturn.hxx b/src/jacksendreturn.hxx
index eee9a3a..4c0704c 100644
--- a/src/jacksendreturn.hxx
+++ b/src/jacksendreturn.hxx
@@ -44,6 +44,8 @@ public:
 
 private:
 	bool _active;
+	float _activeLag;
+	
 	float _sendVol;
 	float _sendVolLag;