From e2de64d6f1beb9e492daf5b886e19933c1fa41dd Mon Sep 17 00:00:00 2001
From: toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>
Date: Wed, 25 Nov 2009 17:56:58 +0000
Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
 BUG:215923

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
---
 arts/modules/effects/monostereoconversion_impl.cc | 160 ++++++++++++++++++++++
 1 file changed, 160 insertions(+)
 create mode 100644 arts/modules/effects/monostereoconversion_impl.cc

(limited to 'arts/modules/effects/monostereoconversion_impl.cc')

diff --git a/arts/modules/effects/monostereoconversion_impl.cc b/arts/modules/effects/monostereoconversion_impl.cc
new file mode 100644
index 00000000..4d408e68
--- /dev/null
+++ b/arts/modules/effects/monostereoconversion_impl.cc
@@ -0,0 +1,160 @@
+/*
+
+    Copyright ( C ) 2002 Arnold Krille <arnold@arnoldarts.de>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (  at your option ) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+    Boston, MA 02111-1307, USA.
+
+    */
+
+#include <artsflow.h>
+#include <flowsystem.h>
+#include <stdsynthmodule.h>
+#include <debug.h>
+#include <artsmoduleseffects.h>
+#include <connect.h>
+
+#include <kglobal.h>
+#include <klocale.h>
+
+namespace Arts {
+
+class MonoToStereo_impl : virtual public MonoToStereo_skel,
+                          virtual public StdSynthModule
+{
+protected:
+	float _pan, _pLeft, _pRight;
+public:
+	MonoToStereo_impl()
+	{
+		pan( 0 );
+	}
+
+	float pan() { return _pan; }
+	void pan( float pan )
+	{
+		if( pan < -1 ) pan = -1;
+		if( pan > 1 ) pan = 1;
+		_pan = pan;
+		_pLeft = _pRight = 1;
+		if( _pan < 0 )
+			_pRight = 1 + _pan;
+		else
+			_pLeft = 1 - _pan;
+	}
+
+	void calculateBlock( unsigned long samples )
+	{
+		for( unsigned int i=0; i<samples; i++ )
+		{
+			outleft[ i ] = inmono[ i ] * _pLeft;
+			outright[ i ] = inmono[ i ] * _pRight;
+		}
+	}
+};
+REGISTER_IMPLEMENTATION( MonoToStereo_impl );
+
+class StereoToMono_impl : virtual public StereoToMono_skel,
+                          virtual public StdSynthModule
+{
+protected:
+	float _pan, _pLeft, _pRight;
+public:
+	StereoToMono_impl()
+	{
+		pan( 0 );
+	}
+
+	float pan() { return _pan; }
+	void pan( float pan ) 
+	{
+		if( pan < -1 ) pan = -1;
+		if( pan > 1 ) pan = 1;
+		_pan = pan;
+		_pLeft = _pRight = 1;
+		if( _pan < 0 )
+			_pRight = 1 + _pan;
+		else
+			_pLeft = 1 - _pan;
+	}
+
+	void calculateBlock( unsigned long samples )
+	{
+		for( unsigned int i=0; i<samples; i++ )
+			outmono[ i ] = ( inleft[ i ] * _pLeft + inright[ i ] * _pRight ) / ( _pLeft + _pRight );
+	}
+};
+REGISTER_IMPLEMENTATION( StereoToMono_impl );
+
+class StereoBalance_impl : virtual public StereoBalance_skel,
+                           virtual public StdSynthModule
+{
+protected:
+	float _balance, _left, _right;
+public:
+	StereoBalance_impl() : _balance( 0 ), _left( 1 ), _right( 1 ) { }
+
+	float balance() { return _balance; }
+	void balance( float n )
+	{
+//arts_debug( "StereoBalance::balance( float %f )", n );
+		if( n>1 ) n=1;
+		if( n<-1 ) n=-1;
+		_balance = n;
+		_right = _left = 1;
+		if( _balance < 0 )
+			_right = 1 + _balance;
+		else
+			_left = 1 - _balance;
+	}
+
+	void calculateBlock( unsigned long samples )
+	{
+//arts_debug( "StereoBalance::calculateBlock( unsigned int %i )", samples );
+		for( unsigned long i=0; i<samples; i++ )
+		{
+		//	outleft[ i ] = inleft[ i ];
+		//	outright[ i ] = inright[ i ];
+			outleft[ i ] = inleft[ i ] * _left;
+			outright[ i ] = inright[ i ] * _right;
+		}
+	}
+};
+REGISTER_IMPLEMENTATION( StereoBalance_impl );
+
+class StereoBalanceGuiFactory_impl : virtual public StereoBalanceGuiFactory_skel
+{
+public:
+	Widget createGui( Object object )
+	{
+		KGlobal::locale()->insertCatalogue( "artsmodules" );
+
+		arts_return_val_if_fail( !object.isNull(), Arts::Widget::null() );
+		StereoBalance ch= DynamicCast( object );
+		arts_return_val_if_fail( !ch.isNull(), Arts::Widget::null() );
+
+		Poti bal;
+		bal.caption( i18n( "Balance" ).utf8().data() );
+		bal.min( -1 ); bal.max( 1 );
+		bal.value( ch.balance() );
+		connect( bal, "value_changed", ch, "balance" );
+
+		return bal;
+	}
+};
+REGISTER_IMPLEMENTATION( StereoBalanceGuiFactory_impl );
+
+}
+
-- 
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