From 29bd890aaeb75bca17b749895f3d393c155beb58 Mon Sep 17 00:00:00 2001
From: Javier Nonis <javiernonis@gmail.com>
Date: Wed, 12 Feb 2025 00:21:29 -0300
Subject: [PATCH] Fix for disable FX feature

---
 src/minidexed.cpp | 19 +++++++++++++++----
 src/minidexed.ini |  2 ++
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/src/minidexed.cpp b/src/minidexed.cpp
index 2e66a81..ea7d75e 100644
--- a/src/minidexed.cpp
+++ b/src/minidexed.cpp
@@ -496,7 +496,14 @@ void CMiniDexed::Run (unsigned nCore)
 					m_pTG[nTG]->getSamples (m_OutputLevel[nTG][0],m_nFramesToProcess);
 
 					m_InsertFXSpinLock[nTG]->Acquire();
-					m_InsertFX[nTG]->process(m_OutputLevel[nTG][0], m_OutputLevel[nTG][0], m_OutputLevel[nTG][0], m_OutputLevel[nTG][1], m_nFramesToProcess);
+					if (!m_bQuadDAC8Chan && m_pConfig->GetFXEnabled())
+					{
+						m_InsertFX[nTG]->process(m_OutputLevel[nTG][0], m_OutputLevel[nTG][0], m_OutputLevel[nTG][0], m_OutputLevel[nTG][1], m_nFramesToProcess);
+					}
+					else
+					{
+						memcpy(m_OutputLevel[nTG][1], m_OutputLevel[nTG][0], m_nFramesToProcess * sizeof(float32_t));
+					}
 					m_InsertFXSpinLock[nTG]->Release();
 				}
 			}
@@ -1572,7 +1579,7 @@ void CMiniDexed::ProcessSound (void)
 		}
 		else
 		{
-			memcpy(SampleBuffer[indexR], SampleBuffer[indexR], nFrames * sizeof(float32_t));
+			memcpy(SampleBuffer[indexR], SampleBuffer[indexL], nFrames * sizeof(float32_t));
 		}
 
 		// swap stereo channels if needed prior to writing back out
@@ -1640,12 +1647,16 @@ void CMiniDexed::ProcessSound (void)
 
 			m_pTG[i]->getSamples (m_OutputLevel[i][0], nFrames);
 			
+			m_InsertFXSpinLock[i]->Acquire();
 			if (!m_bQuadDAC8Chan && m_pConfig->GetFXEnabled())
 			{
-				m_InsertFXSpinLock[i]->Acquire();
 				m_InsertFX[i]->process(m_OutputLevel[i][0], m_OutputLevel[i][0], m_OutputLevel[i][0], m_OutputLevel[i][1], nFrames);
-				m_InsertFXSpinLock[i]->Release();
 			}
+			else
+			{
+				memcpy(m_OutputLevel[i][1], m_OutputLevel[i][0], nFrames * sizeof(float32_t));
+			}
+			m_InsertFXSpinLock[i]->Release();
 		}
 
 		// wait for cores 2 and 3 to complete their work
diff --git a/src/minidexed.ini b/src/minidexed.ini
index 5b6b13d..de8f362 100644
--- a/src/minidexed.ini
+++ b/src/minidexed.ini
@@ -12,6 +12,8 @@ DACI2CAddress=0
 ChannelsSwapped=0
 # Engine Type ( 1=Modern ; 2=Mark I ; 3=OPL )
 EngineType=1
+# FXEnabled ( 0=Disable ; 1=Enable)
+#FXEnabled=0
 
 # MIDI
 MIDIBaudRate=31250