Add denormal protection to Fifowriter thread

2014-11-18 09:19:56 +02:00
parent 78042ed4c5
commit eb7343e25a
2 changed files with 17 additions and 0 deletions
--- a/src/core/Mixer.cpp
+++ b/src/core/Mixer.cpp
@@ -902,6 +902,15 @@ 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
 }