From d98c2392b24cd0f7cb1883992c1b3f1aea20cdb2 Mon Sep 17 00:00:00 2001
From: Vesa <contact.diizy@nbl.fi>
Date: Tue, 18 Nov 2014 10:48:03 +0200
Subject: [PATCH] Move the denormals protection to the run() function of the
 thread The constructor was probably the wrong place to put it, run() is
 definitely executed in the new thread so that's where the setting should be
 applied I think?

---
 src/core/Mixer.cpp             | 19 ++++++++++---------
 src/core/MixerWorkerThread.cpp | 19 +++++++++----------
 2 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/src/core/Mixer.cpp b/src/core/Mixer.cpp
index 488ea31385..1868d9ab0b 100644
--- a/src/core/Mixer.cpp
+++ b/src/core/Mixer.cpp
@@ -902,15 +902,6 @@ Mixer::fifoWriter::fifoWriter( Mixer* mixer, fifo * _fifo ) :
 	m_fifo( _fifo ),
 	m_writing( true )
 {
-	// set denormal protection for this thread
-	#ifdef __SSE3__
-	/* DAZ flag */
-	_MM_SET_DENORMALS_ZERO_MODE( _MM_DENORMALS_ZERO_ON );
-	#endif
-	#ifdef __SSE__
-	/* FTZ flag */
-	_MM_SET_FLUSH_ZERO_MODE( _MM_FLUSH_ZERO_ON );
-	#endif
 }
 
 
@@ -926,6 +917,16 @@ void Mixer::fifoWriter::finish()
 
 void Mixer::fifoWriter::run()
 {
+// set denormal protection for this thread
+#ifdef __SSE3__
+/* DAZ flag */
+	_MM_SET_DENORMALS_ZERO_MODE( _MM_DENORMALS_ZERO_ON );
+#endif
+#ifdef __SSE__
+/* FTZ flag */
+	_MM_SET_FLUSH_ZERO_MODE( _MM_FLUSH_ZERO_ON );
+#endif	
+	
 #if 0
 #ifdef LMMS_BUILD_LINUX
 #ifdef LMMS_HAVE_SCHED_H
diff --git a/src/core/MixerWorkerThread.cpp b/src/core/MixerWorkerThread.cpp
index 817d19c719..c82f9e0356 100644
--- a/src/core/MixerWorkerThread.cpp
+++ b/src/core/MixerWorkerThread.cpp
@@ -101,16 +101,6 @@ MixerWorkerThread::MixerWorkerThread( Mixer* mixer ) :
 	m_workingBuf( new sampleFrame[mixer->framesPerPeriod()] ),
 	m_quit( false )
 {
-	// set denormal protection for this thread
-	#ifdef __SSE3__
-	/* DAZ flag */
-	_MM_SET_DENORMALS_ZERO_MODE( _MM_DENORMALS_ZERO_ON );
-	#endif
-	#ifdef __SSE__
-	/* FTZ flag */
-	_MM_SET_FLUSH_ZERO_MODE( _MM_FLUSH_ZERO_ON );
-	#endif
-
 	// initialize global static data
 	if( queueReadyWaitCond == NULL )
 	{
@@ -162,6 +152,15 @@ void MixerWorkerThread::startAndWaitForJobs()
 
 void MixerWorkerThread::run()
 {
+// set denormal protection for this thread
+#ifdef __SSE3__
+/* DAZ flag */
+	_MM_SET_DENORMALS_ZERO_MODE( _MM_DENORMALS_ZERO_ON );
+#endif
+#ifdef __SSE__
+/* FTZ flag */
+	_MM_SET_FLUSH_ZERO_MODE( _MM_FLUSH_ZERO_ON );
+#endif	
 	QMutex m;
 	while( m_quit == false )
 	{