From 750be17b561acb4c09cc8b9414c50b3cba8e8724 Mon Sep 17 00:00:00 2001
From: Vesa <contact.diizy@nbl.fi>
Date: Mon, 26 May 2014 05:46:53 +0300
Subject: [PATCH] Nes: fix sweep

---
 plugins/nes/Nes.cpp | 23 +++++++++++++++++------
 plugins/nes/Nes.h   |  4 ++--
 2 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/plugins/nes/Nes.cpp b/plugins/nes/Nes.cpp
index b26ab0983..a4de6d99d 100644
--- a/plugins/nes/Nes.cpp
+++ b/plugins/nes/Nes.cpp
@@ -155,12 +155,23 @@ void NesObject::renderOutput( sampleFrame * buf, fpp_t frames )
 	int ch2Sweep = static_cast<int>( m_parent->m_ch2SweepAmt.value() * -1.0 );
 
 	// the amounts are inverted so we correct them here
-	ch1Sweep = ch1Sweep > 0 
-		? 7 - ch1Sweep
-		: -7 - ch1Sweep;
-	ch2Sweep = ch2Sweep > 0 
-		? 7 - ch2Sweep
-		: -7 - ch2Sweep;
+	if( ch1Sweep > 0 )
+	{
+		ch1Sweep = 8 - ch1Sweep;
+	}
+	if( ch1Sweep < 0 )
+	{
+		ch1Sweep = -8 - ch1Sweep;
+	}
+
+	if( ch2Sweep > 0 )
+	{
+		ch2Sweep = 8 - ch2Sweep;
+	}
+	if( ch2Sweep < 0 )
+	{
+		ch2Sweep = -8 - ch2Sweep;
+	}
 
 	
 	// start framebuffer loop
diff --git a/plugins/nes/Nes.h b/plugins/nes/Nes.h
index 7a58ead18..19a669e19 100644
--- a/plugins/nes/Nes.h
+++ b/plugins/nes/Nes.h
@@ -63,7 +63,7 @@ const float NOISE_FREQS[16] =
 const uint16_t LFSR_INIT = 1;
 const float DUTY_CYCLE[4] = { 0.125, 0.25, 0.5, 0.75 };
 const float DITHER_AMP = 1.0 / 60.0;
-const float MIN_FREQ = 20.0;
+const float MIN_FREQ = 10.0;
 const int TRIANGLE_WAVETABLE[32] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
 									15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 };
 
@@ -194,7 +194,7 @@ public:
 
 	virtual f_cnt_t desiredReleaseFrames() const
 	{
-		return( 64 );
+		return( 8 );
 	}
 	
 	virtual PluginView * instantiateView( QWidget * parent );