From 192bd8a5fff48923436571640f4a9132cf1ec382 Mon Sep 17 00:00:00 2001
From: Eknous-P <ehovakimyan053@gmail.com>
Date: Tue, 30 Dec 2025 00:04:52 +0400
Subject: [PATCH] use absolute values for per-chip peaks and zero out when
 engine not running

---
 src/engine/playback.cpp | 58 ++++++++++++++++++++++-------------------
 1 file changed, 31 insertions(+), 27 deletions(-)

diff --git a/src/engine/playback.cpp b/src/engine/playback.cpp
index 05f70c4ba..650f9c297 100644
--- a/src/engine/playback.cpp
+++ b/src/engine/playback.cpp
@@ -3401,35 +3401,39 @@ void DivEngine::nextBuf(float** in, float** out, int inChans, int outChans, unsi
   oscSize=size;
 
   // get per-chip peaks
-  float decay=2.f*size/got.rate;
-  for (int i=0; i<song.systemLen; i++) {
-    DivDispatch* disp=disCont[i].dispatch;
-    if (disp==NULL) continue;
-    for (int j=0; j<disp->getOutputCount(); j++) {
-      if (disCont[i].bbOut[j]==NULL) continue;
-      chipPeak[i][j]*=1.0-decay;
-      float peak=chipPeak[i][j];
-      for (unsigned int k=0; k<size; k++) {
-        float out=disCont[i].bbOut[j][k]*song.systemVol[i]*disp->getPostAmp()/32768.0f; // TODO: PARSE PANNING, FRONT/REAR AND PATCHBAY
-        // switch (j) {
-        //   case 0:
-        //     out*=MIN(1.0f,1.0f-song.systemPan[i])*MIN(1.0f,1.0f+song.systemPanFR[i]);
-        //     break;
-        //   case 1:
-        //     out*=MIN(1.0f,1.0f+song.systemPan[i])*MIN(1.0f,1.0f+song.systemPanFR[i]);
-        //     break;
-        //   case 2:
-        //     out*=MIN(1.0f,1.0f-song.systemPan[i])*MIN(1.0f,1.0f-song.systemPanFR[i]);
-        //     break;
-        //   case 3:
-        //     out*=MIN(1.0f,1.0f+song.systemPan[i])*MIN(1.0f,1.0f-song.systemPanFR[i]);
-        //     break;
-        //   default: break;
-        // }
-        if (out>peak) peak=out;
+  if (isRunning()) {
+    float decay=2.f*size/got.rate;
+    for (int i=0; i<song.systemLen; i++) {
+      DivDispatch* disp=disCont[i].dispatch;
+      if (disp==NULL) continue;
+      for (int j=0; j<disp->getOutputCount(); j++) {
+        if (disCont[i].bbOut[j]==NULL) continue;
+        chipPeak[i][j]*=1.0-decay;
+        float peak=chipPeak[i][j];
+        for (unsigned int k=0; k<size; k++) {
+          float out=fabs(disCont[i].bbOut[j][k]*song.systemVol[i]*disp->getPostAmp()/32768.0f); // TODO: PARSE PANNING, FRONT/REAR AND PATCHBAY
+          // switch (j) {
+          //   case 0:
+          //     out*=MIN(1.0f,1.0f-song.systemPan[i])*MIN(1.0f,1.0f+song.systemPanFR[i]);
+          //     break;
+          //   case 1:
+          //     out*=MIN(1.0f,1.0f+song.systemPan[i])*MIN(1.0f,1.0f+song.systemPanFR[i]);
+          //     break;
+          //   case 2:
+          //     out*=MIN(1.0f,1.0f-song.systemPan[i])*MIN(1.0f,1.0f-song.systemPanFR[i]);
+          //     break;
+          //   case 3:
+          //     out*=MIN(1.0f,1.0f+song.systemPan[i])*MIN(1.0f,1.0f-song.systemPanFR[i]);
+          //     break;
+          //   default: break;
+          // }
+          if (out>peak) peak=out;
+        }
+        chipPeak[i][j]+=(peak-chipPeak[i][j])*0.9;
       }
-      chipPeak[i][j]+=(peak-chipPeak[i][j])*0.9;
     }
+  } else {
+    memset(chipPeak,0,sizeof(chipPeak));
   }
 
   // force mono audio (if enabled)