Skip to content

Rewrite Amplifier plugin code #6989

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
messmerd merged 5 commits into from
Nov 23, 2023
Merged

Rewrite Amplifier plugin code #6989

Show file tree
Hide file tree
Changes from 3 commits
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
a900c4f
rewrite amplifier plugin style
LostRobotMusic Nov 17, 2023
4685d41
pomelo
LostRobotMusic Nov 17, 2023
c6902ff
oroblanco
LostRobotMusic Nov 17, 2023
83d3d02
grapefruit
LostRobotMusic Nov 23, 2023
a80a826
calamlamondin
LostRobotMusic Nov 23, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
88 changes: 25 additions & 63 deletions plugins/Amplifier/Amplifier.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -36,9 +36,9 @@ extern "C"

Plugin::Descriptor PLUGIN_EXPORT amplifier_plugin_descriptor =
{
LMMS_STRINGIFY( PLUGIN_NAME ),
LMMS_STRINGIFY(PLUGIN_NAME),
"Amplifier",
QT_TRANSLATE_NOOP( "PluginBrowser", "A native amplifier plugin" ),
QT_TRANSLATE_NOOP("PluginBrowser", "A native amplifier plugin"),
"Vesa Kivimäki <contact/dot/diizy/at/nbl/dot/fi>",
0x0100,
Plugin::Type::Effect,
Expand All @@ -50,99 +50,61 @@ Plugin::Descriptor PLUGIN_EXPORT amplifier_plugin_descriptor =
}



AmplifierEffect::AmplifierEffect( Model* parent, const Descriptor::SubPluginFeatures::Key* key ) :
Effect( &amplifier_plugin_descriptor, parent, key ),
m_ampControls( this )
AmplifierEffect::AmplifierEffect(Model* parent, const Descriptor::SubPluginFeatures::Key* key) :
Effect(&amplifier_plugin_descriptor, parent, key),
m_ampControls(this)
{
}








bool AmplifierEffect::processAudioBuffer( sampleFrame* buf, const fpp_t frames )
bool AmplifierEffect::processAudioBuffer(sampleFrame* buf, const fpp_t frames)
{
if( !isEnabled() || !isRunning () )
{
return( false );
}
if (!isEnabled() || !isRunning()) { return false ; }

double outSum = 0.0;
const float d = dryLevel();
const float w = wetLevel();

const ValueBuffer * volBuf = m_ampControls.m_volumeModel.valueBuffer();
const ValueBuffer * panBuf = m_ampControls.m_panModel.valueBuffer();
const ValueBuffer * leftBuf = m_ampControls.m_leftModel.valueBuffer();
const ValueBuffer * rightBuf = m_ampControls.m_rightModel.valueBuffer();
const ValueBuffer* volumeBuf = m_ampControls.m_volumeModel.valueBuffer();
const ValueBuffer* panBuf = m_ampControls.m_panModel.valueBuffer();
const ValueBuffer* leftBuf = m_ampControls.m_leftModel.valueBuffer();
const ValueBuffer* rightBuf = m_ampControls.m_rightModel.valueBuffer();

for( fpp_t f = 0; f < frames; ++f )
for (fpp_t f = 0; f < frames; ++f)
{
// qDebug( "offset %d, value %f", f, m_ampControls.m_volumeModel.value( f ) );
const float volume = (volumeBuf ? volumeBuf->value(f) : m_ampControls.m_volumeModel.value()) * 0.01f;
const float pan = (panBuf ? panBuf->value(f) : m_ampControls.m_panModel.value()) * 0.01f;
const float left = (leftBuf ? leftBuf->value(f) : m_ampControls.m_leftModel.value()) * 0.01f;
const float right = (rightBuf ? rightBuf->value(f) : m_ampControls.m_rightModel.value()) * 0.01f;

const float panLeft = std::min(1.0f, 1.0f - pan);
const float panRight = std::min(1.0f, 1.0f + pan);

auto s = std::array{buf[f][0], buf[f][1]};

// vol knob
if( volBuf )
{
s[0] *= volBuf->value( f ) * 0.01f;
s[1] *= volBuf->value( f ) * 0.01f;
}
else
{
s[0] *= m_ampControls.m_volumeModel.value() * 0.01f;
s[1] *= m_ampControls.m_volumeModel.value() * 0.01f;
}

// convert pan values to left/right values
const float pan = panBuf
? panBuf->value( f )
: m_ampControls.m_panModel.value();
const float left1 = pan <= 0
? 1.0
: 1.0 - pan * 0.01f;
const float right1 = pan >= 0
? 1.0
: 1.0 + pan * 0.01f;

// second stage amplification
const float left2 = leftBuf
? leftBuf->value( f )
: m_ampControls.m_leftModel.value();
const float right2 = rightBuf
? rightBuf->value( f )
: m_ampControls.m_rightModel.value();

s[0] *= left1 * left2 * 0.01;
s[1] *= right1 * right2 * 0.01;
s[0] *= volume * left * panLeft;
s[1] *= volume * right * panRight;

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 );
checkGate(outSum / frames);

return isRunning();
}





extern "C"
{

// necessary for getting instance out of shared lib
PLUGIN_EXPORT Plugin * lmms_plugin_main( Model* parent, void* data )
PLUGIN_EXPORT Plugin* lmms_plugin_main(Model* parent, void* data)
{
return new AmplifierEffect( parent, static_cast<const Plugin::Descriptor::SubPluginFeatures::Key *>( data ) );
return new AmplifierEffect(parent, static_cast<const Plugin::Descriptor::SubPluginFeatures::Key*>(data));
}

}

} // namespace lmms
} // namespace lmms
10 changes: 3 additions & 7 deletions plugins/Amplifier/Amplifier.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,6 @@
*
*/


#ifndef AMPLIFIER_H
#define AMPLIFIER_H

Expand All @@ -36,23 +35,20 @@ namespace lmms
class AmplifierEffect : public Effect
{
public:
AmplifierEffect( Model* parent, const Descriptor::SubPluginFeatures::Key* key );
AmplifierEffect(Model* parent, const Descriptor::SubPluginFeatures::Key* key);
~AmplifierEffect() override = default;
bool processAudioBuffer( sampleFrame* buf, const fpp_t frames ) override;
bool processAudioBuffer(sampleFrame* buf, const fpp_t frames) override;

EffectControls* controls() override
{
return &m_ampControls;
}


private:
AmplifierControls m_ampControls;

friend class AmplifierControls;

} ;

};

} // namespace lmms

Expand Down
61 changes: 23 additions & 38 deletions plugins/Amplifier/AmplifierControlDialog.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,53 +23,38 @@
*
*/


#include "AmplifierControlDialog.h"
#include "AmplifierControls.h"
#include "embed.h"
#include "Knob.h"


namespace lmms::gui
{


AmplifierControlDialog::AmplifierControlDialog( AmplifierControls* controls ) :
EffectControlDialog( controls )
AmplifierControlDialog::AmplifierControlDialog(AmplifierControls* controls) :
EffectControlDialog(controls)
{
setAutoFillBackground( true );
setAutoFillBackground(true);
QPalette pal;
pal.setBrush( backgroundRole(), PLUGIN_NAME::getIconPixmap( "artwork" ) );
setPalette( pal );
setFixedSize( 100, 110 );

auto volumeKnob = new Knob(KnobType::Bright26, this);
volumeKnob -> move( 16, 10 );
volumeKnob -> setVolumeKnob( true );
volumeKnob->setModel( &controls->m_volumeModel );
volumeKnob->setLabel( tr( "VOL" ) );
volumeKnob->setHintText( tr( "Volume:" ) , "%" );

auto panKnob = new Knob(KnobType::Bright26, this);
panKnob -> move( 57, 10 );
panKnob->setModel( &controls->m_panModel );
panKnob->setLabel( tr( "PAN" ) );
panKnob->setHintText( tr( "Panning:" ) , "" );

auto leftKnob = new Knob(KnobType::Bright26, this);
leftKnob -> move( 16, 65 );
leftKnob -> setVolumeKnob( true );
leftKnob->setModel( &controls->m_leftModel );
leftKnob->setLabel( tr( "LEFT" ) );
leftKnob->setHintText( tr( "Left gain:" ) , "%" );

auto rightKnob = new Knob(KnobType::Bright26, this);
rightKnob -> move( 57, 65 );
rightKnob -> setVolumeKnob( true );
rightKnob->setModel( &controls->m_rightModel );
rightKnob->setLabel( tr( "RIGHT" ) );
rightKnob->setHintText( tr( "Right gain:" ) , "%" );
pal.setBrush(backgroundRole(), PLUGIN_NAME::getIconPixmap("artwork"));
setPalette(pal);
setFixedSize(100, 110);

auto makeKnob = [this](int x, int y, const QString& label, const QString& hintText, const QString& unit, FloatModel* model, bool isVolume)
{
Knob* newKnob = new Knob(KnobType::Bright26, this);
newKnob->move(x, y);
newKnob->setModel(model);
newKnob->setLabel(label);
newKnob->setHintText(hintText, unit);
newKnob->setVolumeKnob(isVolume);
return newKnob;
};

makeKnob(16, 10, tr("VOL"), tr("Volume:"), "%", &controls->m_volumeModel, true);
makeKnob(57, 10, tr("PAN"), tr("Panning:"), "%", &controls->m_panModel, false);
makeKnob(16, 65, tr("LEFT"), tr("Left gain:"), "%", &controls->m_leftModel, true);
makeKnob(57, 65, tr("RIGHT"), tr("Right gain:"), "%", &controls->m_rightModel, true);
}


} // namespace lmms::gui
} // namespace lmms::gui
10 changes: 5 additions & 5 deletions plugins/Amplifier/AmplifierControlDialog.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -32,20 +32,20 @@ namespace lmms
{

class AmplifierControls;

class FloatModel;

namespace gui
{

class Knob;

class AmplifierControlDialog : public EffectControlDialog
{
Q_OBJECT
public:
AmplifierControlDialog( AmplifierControls* controls );
AmplifierControlDialog(AmplifierControls* controls);
~AmplifierControlDialog() override = default;

} ;

};

} // namespace gui

Expand Down
53 changes: 17 additions & 36 deletions plugins/Amplifier/AmplifierControls.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,6 @@
*
*/


#include <QDomElement>

#include "AmplifierControls.h"
Expand All @@ -32,51 +31,33 @@
namespace lmms
{

AmplifierControls::AmplifierControls( AmplifierEffect* effect ) :
EffectControls( effect ),
m_effect( effect ),
m_volumeModel( 100.0f, 0.0f, 200.0f, 0.1f, this, tr( "Volume" ) ),
m_panModel( 0.0f, -100.0f, 100.0f, 0.1f, this, tr( "Panning" ) ),
m_leftModel( 100.0f, 0.0f, 200.0f, 0.1f, this, tr( "Left gain" ) ),
m_rightModel( 100.0f, 0.0f, 200.0f, 0.1f, this, tr( "Right gain" ) )
AmplifierControls::AmplifierControls(AmplifierEffect* effect) :
EffectControls(effect),
m_effect(effect),
m_volumeModel(100.0f, 0.0f, 200.0f, 0.1f, this, tr("Volume")),
m_panModel(0.0f, -100.0f, 100.0f, 0.1f, this, tr("Panning")),
m_leftModel(100.0f, 0.0f, 200.0f, 0.1f, this, tr("Left gain")),
m_rightModel(100.0f, 0.0f, 200.0f, 0.1f, this, tr("Right gain"))
{
/* connect( &m_volumeModel, SIGNAL( dataChanged() ), this, SLOT( changeControl() ) );
connect( &m_panModel, SIGNAL( dataChanged() ), this, SLOT( changeControl() ) );
connect( &m_leftModel, SIGNAL( dataChanged() ), this, SLOT( changeControl() ) );
connect( &m_rightModel, SIGNAL( dataChanged() ), this, SLOT( changeControl() ) );*/
}




void AmplifierControls::changeControl()
void AmplifierControls::loadSettings(const QDomElement& parent)
{
// engine::getSong()->setModified();
m_volumeModel.loadSettings(parent, "volume");
m_panModel.loadSettings(parent, "pan");
m_leftModel.loadSettings(parent, "left");
m_rightModel.loadSettings(parent, "right");
}




void AmplifierControls::loadSettings( const QDomElement& _this )
void AmplifierControls::saveSettings(QDomDocument& doc, QDomElement& parent)
{
m_volumeModel.loadSettings( _this, "volume" );
m_panModel.loadSettings( _this, "pan" );
m_leftModel.loadSettings( _this, "left" );
m_rightModel.loadSettings( _this, "right" );
}




void AmplifierControls::saveSettings( QDomDocument& doc, QDomElement& _this )
{
m_volumeModel.saveSettings( doc, _this, "volume" );
m_panModel.saveSettings( doc, _this, "pan" );
m_leftModel.saveSettings( doc, _this, "left" );
m_rightModel.saveSettings( doc, _this, "right" );
m_volumeModel.saveSettings(doc, parent, "volume");
m_panModel.saveSettings(doc, parent, "pan");
m_leftModel.saveSettings(doc, parent, "left");
m_rightModel.saveSettings(doc, parent, "right");
}


} // namespace lmms


Loading