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/*
* BassBooster.cpp - bass booster effect plugin
*
* Copyright (c) 2006-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
*
* This file is part of LMMS - https://lmms.io
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program (see COPYING); if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
*/
#include "BassBooster.h"
#include "embed.cpp"
extern "C"
{
Plugin::Descriptor PLUGIN_EXPORT bassbooster_plugin_descriptor =
{
STRINGIFY( PLUGIN_NAME ),
"BassBooster",
QT_TRANSLATE_NOOP( "pluginBrowser", "Boost your bass the fast and simple way" ),
"Tobias Doerffel <tobydox/at/users.sf.net>",
0x0100,
Plugin::Effect,
new PluginPixmapLoader( "logo" ),
NULL,
NULL
} ;
}
BassBoosterEffect::BassBoosterEffect( Model* parent, const Descriptor::SubPluginFeatures::Key* key ) :
Effect( &bassbooster_plugin_descriptor, parent, key ),
m_frequencyChangeNeeded( false ),
m_bbFX( DspEffectLibrary::FastBassBoost( 70.0f, 1.0f, 2.8f ) ),
m_bbControls( this )
{
changeFrequency();
changeGain();
changeRatio();
}
BassBoosterEffect::~BassBoosterEffect()
{
}
bool BassBoosterEffect::processAudioBuffer( sampleFrame* buf, const fpp_t frames )
{
if( !isEnabled() || !isRunning () )
{
return( false );
}
// check out changed controls
if( m_frequencyChangeNeeded || m_bbControls.m_freqModel.isValueChanged() )
{
changeFrequency();
m_frequencyChangeNeeded = false;
}
if( m_bbControls.m_gainModel.isValueChanged() ) { changeGain(); }
if( m_bbControls.m_ratioModel.isValueChanged() ) { changeRatio(); }
const float const_gain = m_bbControls.m_gainModel.value();
const ValueBuffer *gainBuffer = m_bbControls.m_gainModel.valueBuffer();
double outSum = 0.0;
const float d = dryLevel();
const float w = wetLevel();
for( fpp_t f = 0; f < frames; ++f )
{
float gain = const_gain;
if (gainBuffer) {
//process period using sample exact data
gain = gainBuffer->value( f );
}
//float gain = gainBuffer ? gainBuffer[f] : gain;
m_bbFX.leftFX().setGain( gain );
m_bbFX.rightFX().setGain( gain);
sample_t s[2] = { buf[f][0], buf[f][1] };
m_bbFX.nextSample( s[0], s[1] );
buf[f][0] = d * buf[f][0] + w * s[0];
buf[f][1] = d * buf[f][1] + w * s[1];
outSum += buf[f][0] * buf[f][0] + buf[f][1] * buf[f][1];
}
checkGate( outSum / frames );
return isRunning();
}
inline void BassBoosterEffect::changeFrequency()
{
const sample_t fac = Engine::mixer()->processingSampleRate() / 44100.0f;
m_bbFX.leftFX().setFrequency( m_bbControls.m_freqModel.value() * fac );
m_bbFX.rightFX().setFrequency( m_bbControls.m_freqModel.value() * fac );
}
inline void BassBoosterEffect::changeGain()
{
m_bbFX.leftFX().setGain( m_bbControls.m_gainModel.value() );
m_bbFX.rightFX().setGain( m_bbControls.m_gainModel.value() );
}
inline void BassBoosterEffect::changeRatio()
{
m_bbFX.leftFX().setRatio( m_bbControls.m_ratioModel.value() );
m_bbFX.rightFX().setRatio( m_bbControls.m_ratioModel.value() );
}
extern "C"
{
// necessary for getting instance out of shared lib
Plugin * PLUGIN_EXPORT lmms_plugin_main( Model* parent, void* data )
{
return new BassBoosterEffect( parent, static_cast<const Plugin::Descriptor::SubPluginFeatures::Key *>( data ) );
}
}
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