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/*
Copyright ( C ) 2002 Arnold Krille <[email protected]>
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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, 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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