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//Copyright: (C) 2003 Mark Kretschmann
// (C) 2004,2005 Max Howell, <max.howell@methylblue.com>
//License: See COPYING
#include "enginebase.h"
#include <cmath>
Engine::Base::Base()
: Amarok::Plugin()
, m_xfadeLength( 0 )
, m_xfadeNextTrack( false )
, m_volume( 50 )
, m_scope( SCOPESIZE )
, m_isStream( false )
{}
Engine::Base::~Base()
{
}
//////////////////////////////////////////////////////////////////////
bool
Engine::Base::load( const KURL &url, bool stream )
{
m_url = url;
m_isStream = stream;
return true;
}
void Engine::Base::setVolume( uint value )
{
m_volume = value;
setVolumeSW( makeVolumeLogarithmic( value ) );
}
uint
Engine::Base::makeVolumeLogarithmic( uint volume ) // static
{
// We're using a logarithmic function to make the volume ramp more natural.
return static_cast<uint>( 100 - 100.0 * std::log10( ( 100 - volume ) * 0.09 + 1.0 ) );
}
#include "enginebase.moc"
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