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lmms/plugins/Nes/Nes.cpp
Rossmaxx a992019626 Cleanup lmms_math.h (#7382) 
* simplified fraction and absfraction functions

* removed unused fastSqrt() and fastPow()  
functions

* unused absMin() and absMax()

* move roundAt to math header

* Code review from saker

Co-authored-by: saker <sakertooth@gmail.com>

* use std::trunc()

* fixup after fixing merge conflicts

* remove unused fastFma and fastFmal functions.

* remove lmms_basics include, not needed

* use signedPowf from lmms_math in NES

* removed fastRand function, unused

* remove unused sinc function

* cleanup signedPowf

* code review

* further simplify random number math

* removed static from lmms_math file

---------

Co-authored-by: saker <sakertooth@gmail.com>
2024-08-28 12:48:56 +05:30

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/* Nes.cpp - A NES instrument plugin for LMMS
*
* Copyright (c) 2014 Vesa Kivimäki
* Copyright (c) 2004-2014 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 <QDomElement>
#include "Nes.h"
#include "AudioEngine.h"
#include "Engine.h"
#include "InstrumentTrack.h"
#include "interpolation.h"
#include "Knob.h"
#include "Oscillator.h"
#include "embed.h"
#include "lmms_math.h"
#include "plugin_export.h"
namespace lmms
{
extern "C"
{
Plugin::Descriptor PLUGIN_EXPORT nes_plugin_descriptor =
{
LMMS_STRINGIFY( PLUGIN_NAME ),
"Nescaline",
QT_TRANSLATE_NOOP( "PluginBrowser",
"A NES-like synthesizer" ),
"Vesa Kivimäki <contact/dot/diizy/at/nbl/dot/fi>",
0x0100,
Plugin::Type::Instrument,
new PluginPixmapLoader( "logo" ),
nullptr,
nullptr,
} ;
}
NesObject::NesObject( NesInstrument * nes, const sample_rate_t samplerate, NotePlayHandle * nph ) :
m_parent( nes ),
m_samplerate( samplerate ),
m_nph( nph )
{
m_pitchUpdateCounter = 0;
m_pitchUpdateFreq = wavelength( 60.0f );
m_LFSR = LFSR_INIT;
m_ch1Counter = 0;
m_ch2Counter = 0;
m_ch3Counter = 0;
m_ch4Counter = 0;
m_ch1EnvCounter = 0;
m_ch2EnvCounter = 0;
m_ch4EnvCounter = 0;
m_ch1EnvValue = 15;
m_ch2EnvValue = 15;
m_ch4EnvValue = 15;
m_ch1SweepCounter = 0;
m_ch2SweepCounter = 0;
m_ch4SweepCounter = 0;
m_12Last = 0.0f;
m_34Last = 0.0f;
m_maxWlen = wavelength( MIN_FREQ );
m_nsf = NES_SIMPLE_FILTER * ( m_samplerate / 44100.0 );
m_lastNoteFreq = 0;
m_lastNoiseFreq = -1.0f; // value that is always different than noisefreq so it gets updated at start
m_vibratoPhase = 0;
updatePitch();
}
void NesObject::renderOutput( SampleFrame* buf, fpp_t frames )
{
////////////////////////////////
// //
// variables for processing //
// //
////////////////////////////////
bool ch1Enabled = m_parent->m_ch1Enabled.value();
bool ch2Enabled = m_parent->m_ch2Enabled.value();
bool ch3Enabled = m_parent->m_ch3Enabled.value();
bool ch4Enabled = m_parent->m_ch4Enabled.value();
float ch1DutyCycle = DUTY_CYCLE[ m_parent->m_ch1DutyCycle.value() ];
int ch1EnvLen = wavelength( floorf( 240.0 / ( m_parent->m_ch1EnvLen.value() + 1 ) ) );
bool ch1EnvLoop = m_parent->m_ch1EnvLooped.value();
float ch2DutyCycle = DUTY_CYCLE[ m_parent->m_ch2DutyCycle.value() ];
int ch2EnvLen = wavelength( floorf( 240.0 / ( m_parent->m_ch2EnvLen.value() + 1 ) ) );
bool ch2EnvLoop = m_parent->m_ch2EnvLooped.value();
int ch4EnvLen = wavelength( floorf( 240.0 / ( m_parent->m_ch4EnvLen.value() + 1 ) ) );
bool ch4EnvLoop = m_parent->m_ch4EnvLooped.value();
// processing variables for operators
int ch1;
int ch2;
int ch3;
int ch4;
// levels for generators (used for dc offset compensation)
int ch1Level;
int ch2Level;
int ch3Level;
int ch4Level;
int ch1SweepRate = wavelength( floorf( 120.0 / ( m_parent->m_ch1SweepRate.value() + 1 ) ) );
int ch2SweepRate = wavelength( floorf( 120.0 / ( m_parent->m_ch2SweepRate.value() + 1 ) ) );
int ch4SweepRate = wavelength( floorf( 60.0f / ( 8.0f - qAbs( m_parent->m_ch4Sweep.value() ) ) ) );
int ch1Sweep = static_cast<int>( m_parent->m_ch1SweepAmt.value() * -1.0 );
int ch2Sweep = static_cast<int>( m_parent->m_ch2SweepAmt.value() * -1.0 );
int ch4Sweep = 0;
if( m_parent->m_ch4Sweep.value() != 0.0f )
{
ch4Sweep = m_parent->m_ch4Sweep.value() > 0.0f
? -1
: 1;
}
// the amounts are inverted so we correct them here
if( ch1Sweep > 0 )
{
ch1Sweep = 8 - ch1Sweep;
}
if( ch1Sweep < 0 )
{
ch1Sweep = -8 - ch1Sweep;
}
if( ch2Sweep > 0 )
{
ch2Sweep = 8 - ch2Sweep;
}
if( ch2Sweep < 0 )
{
ch2Sweep = -8 - ch2Sweep;
}
// start framebuffer loop
for( f_cnt_t f = 0; f < frames; f++ )
{
////////////////////////////////
// //
// pitch update //
// //
////////////////////////////////
m_pitchUpdateCounter++;
if( m_pitchUpdateCounter >= m_pitchUpdateFreq )
{
updatePitch();
m_pitchUpdateCounter = 0;
}
////////////////////////////////
// //
// channel 1 //
// //
////////////////////////////////
// render pulse wave
if( m_wlen1 <= m_maxWlen && m_wlen1 >= MIN_WLEN && ch1Enabled )
{
ch1Level = m_parent->m_ch1EnvEnabled.value()
? static_cast<int>( ( m_parent->m_ch1Volume.value() * m_ch1EnvValue ) / 15.0 )
: static_cast<int>( m_parent->m_ch1Volume.value() );
ch1 = m_ch1Counter > m_wlen1 * ch1DutyCycle
? 0
: ch1Level;
}
else ch1 = ch1Level = 0;
// update sweep
m_ch1SweepCounter++;
if( m_ch1SweepCounter >= ch1SweepRate )
{
m_ch1SweepCounter = 0;
if( m_parent->m_ch1SweepEnabled.value() && m_wlen1 <= m_maxWlen && m_wlen1 >= MIN_WLEN )
{
// check if the sweep goes up or down
if( ch1Sweep > 0 )
{
m_wlen1 += m_wlen1 >> qAbs( ch1Sweep );
}
if( ch1Sweep < 0 )
{
m_wlen1 -= m_wlen1 >> qAbs( ch1Sweep );
m_wlen1--; // additional minus 1 for ch1 only
}
}
}
// update framecounters
m_ch1Counter++;
m_ch1Counter = m_wlen1 ? m_ch1Counter % m_wlen1 : 0;
m_ch1EnvCounter++;
if( m_ch1EnvCounter >= ch1EnvLen )
{
m_ch1EnvCounter = 0;
m_ch1EnvValue--;
if( m_ch1EnvValue < 0 )
{
m_ch1EnvValue = ch1EnvLoop ? 15 : 0;
}
}
////////////////////////////////
// //
// channel 2 //
// //
////////////////////////////////
// render pulse wave
if( m_wlen2 <= m_maxWlen && m_wlen2 >= MIN_WLEN && ch2Enabled )
{
ch2Level = m_parent->m_ch2EnvEnabled.value()
? static_cast<int>( ( m_parent->m_ch2Volume.value() * m_ch2EnvValue ) / 15.0 )
: static_cast<int>( m_parent->m_ch2Volume.value() );
ch2 = m_ch2Counter > m_wlen2 * ch2DutyCycle
? 0
: ch2Level;
}
else ch2 = ch2Level = 0;
// update sweep
m_ch2SweepCounter++;
if( m_ch2SweepCounter >= ch2SweepRate )
{
m_ch2SweepCounter = 0;
if( m_parent->m_ch2SweepEnabled.value() && m_wlen2 <= m_maxWlen && m_wlen2 >= MIN_WLEN )
{
// check if the sweep goes up or down
if( ch2Sweep > 0 )
{
m_wlen2 += m_wlen2 >> qAbs( ch2Sweep );
}
if( ch2Sweep < 0 )
{
m_wlen2 -= m_wlen2 >> qAbs( ch2Sweep );
}
}
}
// update framecounters
m_ch2Counter++;
m_ch2Counter = m_wlen2 ? m_ch2Counter % m_wlen2 : 0;
m_ch2EnvCounter++;
if( m_ch2EnvCounter >= ch2EnvLen )
{
m_ch2EnvCounter = 0;
m_ch2EnvValue--;
if( m_ch2EnvValue < 0 )
{
m_ch2EnvValue = ch2EnvLoop
? 15
: 0;
}
}
////////////////////////////////
// //
// channel 3 //
// //
////////////////////////////////
// make sure we don't overflow
m_ch3Counter = m_wlen3 ? m_ch3Counter % m_wlen3 : 0;
// render triangle wave
if( m_wlen3 <= m_maxWlen && ch3Enabled )
{
ch3Level = static_cast<int>( m_parent->m_ch3Volume.value() );
ch3 = m_wlen3 ? TRIANGLE_WAVETABLE[ ( m_ch3Counter * 32 ) / m_wlen3 ] : 0;
ch3 = ( ch3 * ch3Level ) / 15;
}
else ch3 = ch3Level = 0;
m_ch3Counter++;
////////////////////////////////
// //
// channel 4 //
// //
////////////////////////////////
// render pseudo noise
if( ch4Enabled )
{
ch4Level = m_parent->m_ch4EnvEnabled.value()
? ( static_cast<int>( m_parent->m_ch4Volume.value() ) * m_ch4EnvValue ) / 15
: static_cast<int>( m_parent->m_ch4Volume.value() );
ch4 = LFSR()
? ch4Level
: 0;
}
else ch4 = ch4Level = 0;
// update framecounters
m_ch4Counter++;
if( m_ch4Counter >= m_wlen4 )
{
m_ch4Counter = 0;
updateLFSR( m_parent->m_ch4NoiseMode.value() );
}
m_ch4EnvCounter++;
if( m_ch4EnvCounter >= ch4EnvLen )
{
m_ch4EnvCounter = 0;
m_ch4EnvValue--;
if( m_ch4EnvValue < 0 )
{
m_ch4EnvValue = ch4EnvLoop
? 15
: 0;
}
}
m_ch4SweepCounter++;
if( m_ch4SweepCounter >= ch4SweepRate )
{
m_ch4SweepCounter = 0;
if( ch4Sweep != 0 )
{
int freqN = nearestNoiseFreq( static_cast<float>( m_samplerate ) / m_wlen4 );
freqN = qBound( 0, freqN + ch4Sweep, 15 );
m_wlen4 = wavelength( NOISE_FREQS[ freqN ] );
if( m_wlen4 == 0 && ch4Sweep == 1 ) // a workaround for sweep getting stuck on 0 wavelength
{
while( m_wlen4 == 0 )
{
m_wlen4 = wavelength( NOISE_FREQS[ ++freqN ] );
}
}
}
}
////////////////////////////////
// //
// final stage - mixing //
// //
////////////////////////////////
auto pin1 = static_cast<float>(ch1 + ch2);
// add dithering noise
pin1 *= 1.0 + ( Oscillator::noiseSample( 0.0f ) * DITHER_AMP );
pin1 = pin1 / 30.0f;
pin1 = signedPowf(pin1, NES_DIST);
pin1 = pin1 * 2.0f - 1.0f;
// simple first order iir filter, to simulate the frequency response falloff in nes analog audio output
pin1 = linearInterpolate( pin1, m_12Last, m_nsf );
m_12Last = pin1;
// compensate DC offset
pin1 += 1.0f - signedPowf(static_cast<float>(ch1Level + ch2Level) / 30.0f, NES_DIST);
pin1 *= NES_MIXING_12;
auto pin2 = static_cast<float>(ch3 + ch4);
// add dithering noise
pin2 *= 1.0 + ( Oscillator::noiseSample( 0.0f ) * DITHER_AMP );
pin2 = pin2 / 30.0f;
pin2 = signedPowf(pin2, NES_DIST);
pin2 = pin2 * 2.0f - 1.0f;
// simple first order iir filter, to simulate the frequency response falloff in nes analog audio output
pin2 = linearInterpolate( pin2, m_34Last, m_nsf );
m_34Last = pin2;
// compensate DC offset
pin2 += 1.0f - signedPowf(static_cast<float>(ch3Level + ch4Level) / 30.0f, NES_DIST);
pin2 *= NES_MIXING_34;
const float mixdown = ( pin1 + pin2 ) * NES_MIXING_ALL * m_parent->m_masterVol.value();
buf[f][0] = mixdown;
buf[f][1] = mixdown;
} // end framebuffer loop
}
void NesObject::updateVibrato( float * freq )
{
float vibratoAmt = floorf( m_parent->m_vibrato.value() ) / 15.0f;
m_vibratoPhase++;
m_vibratoPhase %= 32;
float vibratoRatio = 1.0f + ( static_cast<float>( TRIANGLE_WAVETABLE[ m_vibratoPhase ] ) * 0.02f * vibratoAmt );
*freq *= vibratoRatio;
}
void NesObject::updatePitch()
{
float freq = m_nph->frequency();
// if vibrato is active, update vibrato
if( m_parent->m_vibrato.value() > 0 )
{
updateVibrato( &freq );
}
// check if frequency has changed, if so, update wavelengths of ch1-3
if( freq != m_lastNoteFreq )
{
m_wlen1 = wavelength( freq * m_parent->m_freq1 );
m_wlen2 = wavelength( freq * m_parent->m_freq2 );
m_wlen3 = wavelength( freq * m_parent->m_freq3 );
}
// noise channel can use either note freq or preset freqs
if( m_parent->m_ch4NoiseFreqMode.value() && freq != m_lastNoteFreq )
{
float f = freq * 2.0f;
if( m_parent->m_ch4NoiseQuantize.value() ) // note freq can be quantized to the preset freqs
{
f = NOISE_FREQS[ nearestNoiseFreq( f ) ];
}
m_wlen4 = wavelength( f );
}
if( ! m_parent->m_ch4NoiseFreqMode.value() && m_lastNoiseFreq != m_parent->m_ch4NoiseFreq.value() )
{
m_wlen4 = wavelength( NOISE_FREQS[ 15 - static_cast<int>( m_parent->m_ch4NoiseFreq.value() ) ] );
m_lastNoiseFreq = m_parent->m_ch4NoiseFreq.value();
}
m_lastNoteFreq = freq;
}
NesInstrument::NesInstrument( InstrumentTrack * instrumentTrack ) :
Instrument( instrumentTrack, &nes_plugin_descriptor ),
m_ch1Enabled(true, this, tr("Channel 1 enable")),
m_ch1Crs( 0.f, -24.f, 24.f, 1.f, this, tr( "Channel 1 coarse detune" ) ),
m_ch1Volume( 15.f, 0.f, 15.f, 1.f, this, tr( "Channel 1 volume" ) ),
m_ch1EnvEnabled(false, this, tr("Channel 1 envelope enable")),
m_ch1EnvLooped(false, this, tr("Channel 1 envelope loop")),
m_ch1EnvLen( 0.f, 0.f, 15.f, 1.f, this, tr( "Channel 1 envelope length" ) ),
m_ch1DutyCycle( 0, 0, 3, this, tr( "Channel 1 duty cycle" ) ),
m_ch1SweepEnabled(false, this, tr("Channel 1 sweep enable")),
m_ch1SweepAmt( 0.f, -7.f, 7.f, 1.f, this, tr( "Channel 1 sweep amount" ) ),
m_ch1SweepRate( 0.f, 0.f, 7.f, 1.f, this, tr( "Channel 1 sweep rate" ) ),
m_ch2Enabled(true, this, tr("Channel 2 enable")),
m_ch2Crs( 0.f, -24.f, 24.f, 1.f, this, tr( "Channel 2 coarse detune" ) ),
m_ch2Volume( 15.f, 0.f, 15.f, 1.f, this, tr( "Channel 2 volume" ) ),
m_ch2EnvEnabled(false, this, tr("Channel 2 envelope enable")),
m_ch2EnvLooped(false, this, tr("Channel 2 envelope loop")),
m_ch2EnvLen( 0.f, 0.f, 15.f, 1.f, this, tr( "Channel 2 envelope length" ) ),
m_ch2DutyCycle( 2, 0, 3, this, tr( "Channel 2 duty cycle" ) ),
m_ch2SweepEnabled(false, this, tr("Channel 2 sweep enable")),
m_ch2SweepAmt( 0.f, -7.f, 7.f, 1.f, this, tr( "Channel 2 sweep amount" ) ),
m_ch2SweepRate( 0.f, 0.f, 7.f, 1.f, this, tr( "Channel 2 sweep rate" ) ),
//channel 3
m_ch3Enabled(true, this, tr("Channel 3 enable")),
m_ch3Crs( 0.f, -24.f, 24.f, 1.f, this, tr( "Channel 3 coarse detune" ) ),
m_ch3Volume( 15.f, 0.f, 15.f, 1.f, this, tr( "Channel 3 volume" ) ),
//channel 4
m_ch4Enabled(false, this, tr("Channel 4 enable")),
m_ch4Volume( 15.f, 0.f, 15.f, 1.f, this, tr( "Channel 4 volume" ) ),
m_ch4EnvEnabled(false, this, tr("Channel 4 envelope enable")),
m_ch4EnvLooped(false, this, tr("Channel 4 envelope loop")),
m_ch4EnvLen( 0.f, 0.f, 15.f, 1.f, this, tr( "Channel 4 envelope length" ) ),
m_ch4NoiseMode(false, this, tr("Channel 4 noise mode")),
m_ch4NoiseFreqMode(false, this, tr("Channel 4 frequency mode")),
m_ch4NoiseFreq( 0.f, 0.f, 15.f, 1.f, this, tr( "Channel 4 noise frequency" ) ),
m_ch4Sweep( 0.f, -7.f, 7.f, 1.f, this, tr( "Channel 4 noise frequency sweep" ) ),
m_ch4NoiseQuantize(true, this, tr("Channel 4 quantize")),
//master
m_masterVol( 1.0f, 0.0f, 2.0f, 0.01f, this, tr( "Master volume" ) ),
m_vibrato( 0.0f, 0.0f, 15.0f, 1.0f, this, tr( "Vibrato" ) )
{
connect( &m_ch1Crs, SIGNAL( dataChanged() ), this, SLOT( updateFreq1() ), Qt::DirectConnection );
connect( &m_ch2Crs, SIGNAL( dataChanged() ), this, SLOT( updateFreq2() ), Qt::DirectConnection );
connect( &m_ch3Crs, SIGNAL( dataChanged() ), this, SLOT( updateFreq3() ), Qt::DirectConnection );
updateFreq1();
updateFreq2();
updateFreq3();
}
void NesInstrument::playNote( NotePlayHandle * n, SampleFrame* workingBuffer )
{
const fpp_t frames = n->framesLeftForCurrentPeriod();
const f_cnt_t offset = n->noteOffset();
if (!n->m_pluginData)
{
auto nes = new NesObject(this, Engine::audioEngine()->outputSampleRate(), n);
n->m_pluginData = nes;
}
auto nes = static_cast<NesObject*>(n->m_pluginData);
nes->renderOutput( workingBuffer + offset, frames );
applyRelease( workingBuffer, n );
}
void NesInstrument::deleteNotePluginData( NotePlayHandle * n )
{
delete static_cast<NesObject *>( n->m_pluginData );
}
void NesInstrument::saveSettings( QDomDocument & doc, QDomElement & element )
{
m_ch1Enabled.saveSettings( doc, element, "on1" );
m_ch1Crs.saveSettings( doc, element, "crs1" );
m_ch1Volume.saveSettings( doc, element, "vol1" );
m_ch1EnvEnabled.saveSettings( doc, element, "envon1" );
m_ch1EnvLooped.saveSettings( doc, element, "envloop1" );
m_ch1EnvLen.saveSettings( doc, element, "envlen1" );
m_ch1DutyCycle.saveSettings( doc, element, "dc1" );
m_ch1SweepEnabled.saveSettings( doc, element, "sweep1" );
m_ch1SweepAmt.saveSettings( doc, element, "swamt1" );
m_ch1SweepRate.saveSettings( doc, element, "swrate1" );
// channel 2
m_ch2Enabled.saveSettings( doc, element, "on2" );
m_ch2Crs.saveSettings( doc, element, "crs2" );
m_ch2Volume.saveSettings( doc, element, "vol2" );
m_ch2EnvEnabled.saveSettings( doc, element, "envon2" );
m_ch2EnvLooped.saveSettings( doc, element, "envloop2" );
m_ch2EnvLen.saveSettings( doc, element, "envlen2" );
m_ch2DutyCycle.saveSettings( doc, element, "dc2" );
m_ch2SweepEnabled.saveSettings( doc, element, "sweep2" );
m_ch2SweepAmt.saveSettings( doc, element, "swamt2" );
m_ch2SweepRate.saveSettings( doc, element, "swrate2" );
//channel 3
m_ch3Enabled.saveSettings( doc, element, "on3" );
m_ch3Crs.saveSettings( doc, element, "crs3" );
m_ch3Volume.saveSettings( doc, element, "vol3" );
//channel 4
m_ch4Enabled.saveSettings( doc, element, "on4" );
m_ch4Volume.saveSettings( doc, element, "vol4" );
m_ch4EnvEnabled.saveSettings( doc, element, "envon4" );
m_ch4EnvLooped.saveSettings( doc, element, "envloop4" );
m_ch4EnvLen.saveSettings( doc, element, "envlen4" );
m_ch4NoiseMode.saveSettings( doc, element, "nmode4" );
m_ch4NoiseFreqMode.saveSettings( doc, element, "nfrqmode4" );
m_ch4NoiseFreq.saveSettings( doc, element, "nfreq4" );
m_ch4NoiseQuantize.saveSettings( doc, element, "nq4" );
m_ch4Sweep.saveSettings( doc, element, "nswp4" );
//master
m_masterVol.saveSettings( doc, element, "vol" );
m_vibrato.saveSettings( doc, element, "vibr" );
}
void NesInstrument::loadSettings( const QDomElement & element )
{
m_ch1Enabled.loadSettings( element, "on1" );
m_ch1Crs.loadSettings( element, "crs1" );
m_ch1Volume.loadSettings( element, "vol1" );
m_ch1EnvEnabled.loadSettings( element, "envon1" );
m_ch1EnvLooped.loadSettings( element, "envloop1" );
m_ch1EnvLen.loadSettings( element, "envlen1" );
m_ch1DutyCycle.loadSettings( element, "dc1" );
m_ch1SweepEnabled.loadSettings( element, "sweep1" );
m_ch1SweepAmt.loadSettings( element, "swamt1" );
m_ch1SweepRate.loadSettings( element, "swrate1" );
// channel 2
m_ch2Enabled.loadSettings( element, "on2" );
m_ch2Crs.loadSettings( element, "crs2" );
m_ch2Volume.loadSettings( element, "vol2" );
m_ch2EnvEnabled.loadSettings( element, "envon2" );
m_ch2EnvLooped.loadSettings( element, "envloop2" );
m_ch2EnvLen.loadSettings( element, "envlen2" );
m_ch2DutyCycle.loadSettings( element, "dc2" );
m_ch2SweepEnabled.loadSettings( element, "sweep2" );
m_ch2SweepAmt.loadSettings( element, "swamt2" );
m_ch2SweepRate.loadSettings( element, "swrate2" );
//channel 3
m_ch3Enabled.loadSettings( element, "on3" );
m_ch3Crs.loadSettings( element, "crs3" );
m_ch3Volume.loadSettings( element, "vol3" );
//channel 4
m_ch4Enabled.loadSettings( element, "on4" );
m_ch4Volume.loadSettings( element, "vol4" );
m_ch4EnvEnabled.loadSettings( element, "envon4" );
m_ch4EnvLooped.loadSettings( element, "envloop4" );
m_ch4EnvLen.loadSettings( element, "envlen4" );
m_ch4NoiseMode.loadSettings( element, "nmode4" );
m_ch4NoiseFreqMode.loadSettings( element, "nfrqmode4" );
m_ch4NoiseFreq.loadSettings( element, "nfreq4" );
m_ch4NoiseQuantize.loadSettings( element, "nq4" );
m_ch4Sweep.loadSettings( element, "nswp4" );
//master
m_masterVol.loadSettings( element, "vol" );
m_vibrato.loadSettings( element, "vibr" );
}
QString NesInstrument::nodeName() const
{
return( nes_plugin_descriptor.name );
}
gui::PluginView* NesInstrument::instantiateView( QWidget * parent )
{
return( new gui::NesInstrumentView( this, parent ) );
}
void NesInstrument::updateFreq1()
{
m_freq1 = powf( 2, m_ch1Crs.value() / 12.0f );
}
void NesInstrument::updateFreq2()
{
m_freq2 = powf( 2, m_ch2Crs.value() / 12.0f );
}
void NesInstrument::updateFreq3()
{
m_freq3 = powf( 2, m_ch3Crs.value() / 12.0f );
}
namespace gui
{
NesInstrumentView::NesInstrumentView( Instrument * instrument, QWidget * parent ) :
InstrumentViewFixedSize( instrument, parent )
{
setAutoFillBackground( true );
QPalette pal;
static auto s_artwork = PLUGIN_NAME::getIconPixmap("artwork");
pal.setBrush(backgroundRole(), s_artwork);
setPalette( pal );
const int KNOB_Y1 = 24;
const int KNOB_Y2 = 81;
const int KNOB_Y3 = 138;
const int KNOB_Y4 = 195;
const int KNOB_X1 = 12;
const int KNOB_X2 = 46;
const int KNOB_X3 = 84;
const int KNOB_X4 = 117;
const int KNOB_X5 = 151;
const int KNOB_X6 = 172;
const int KNOB_X7 = 206;
// channel 1
makeknob( m_ch1VolumeKnob, KNOB_X1, KNOB_Y1, tr( "Volume" ), "", "" )
makeknob( m_ch1CrsKnob, KNOB_X2, KNOB_Y1, tr( "Coarse detune" ), "", "" )
makeknob( m_ch1EnvLenKnob, KNOB_X3, KNOB_Y1, tr( "Envelope length" ), "", "" )
makenesled( m_ch1EnabledBtn, KNOB_X1, KNOB_Y1 - 12, tr( "Enable channel 1" ) )
makenesled( m_ch1EnvEnabledBtn, KNOB_X3, KNOB_Y1 - 12, tr( "Enable envelope 1" ) )
makenesled( m_ch1EnvLoopedBtn, 129, KNOB_Y1 - 12, tr( "Enable envelope 1 loop" ) )
makenesled( m_ch1SweepEnabledBtn, KNOB_X6, KNOB_Y1 - 12, tr( "Enable sweep 1" ) )
makeknob( m_ch1SweepAmtKnob, KNOB_X6, KNOB_Y1, tr( "Sweep amount" ), "", "" )
makeknob( m_ch1SweepRateKnob, KNOB_X7, KNOB_Y1, tr( "Sweep rate" ), "", "" )
int dcx = 117;
makedcled( ch1_dc1, dcx, 42, tr( "12.5% Duty cycle" ), "nesdc1_on" )
dcx += 13;
makedcled( ch1_dc2, dcx, 42, tr( "25% Duty cycle" ), "nesdc2_on" )
dcx += 13;
makedcled( ch1_dc3, dcx, 42, tr( "50% Duty cycle" ), "nesdc3_on" )
dcx += 13;
makedcled( ch1_dc4, dcx, 42, tr( "75% Duty cycle" ), "nesdc4_on" )
m_ch1DutyCycleGrp = new automatableButtonGroup( this );
m_ch1DutyCycleGrp -> addButton( ch1_dc1 );
m_ch1DutyCycleGrp -> addButton( ch1_dc2 );
m_ch1DutyCycleGrp -> addButton( ch1_dc3 );
m_ch1DutyCycleGrp -> addButton( ch1_dc4 );
// channel 2
makeknob( m_ch2VolumeKnob, KNOB_X1, KNOB_Y2, tr( "Volume" ), "", "" )
makeknob( m_ch2CrsKnob, KNOB_X2, KNOB_Y2, tr( "Coarse detune" ), "", "" )
makeknob( m_ch2EnvLenKnob, KNOB_X3, KNOB_Y2, tr( "Envelope length" ), "", "" )
makenesled( m_ch2EnabledBtn, KNOB_X1, KNOB_Y2 - 12, tr( "Enable channel 2" ) )
makenesled( m_ch2EnvEnabledBtn, KNOB_X3, KNOB_Y2 - 12, tr( "Enable envelope 2" ) )
makenesled( m_ch2EnvLoopedBtn, 129, KNOB_Y2 - 12, tr( "Enable envelope 2 loop" ) )
makenesled( m_ch2SweepEnabledBtn, KNOB_X6, KNOB_Y2 - 12, tr( "Enable sweep 2" ) )
makeknob( m_ch2SweepAmtKnob, KNOB_X6, KNOB_Y2, tr( "Sweep amount" ), "", "" )
makeknob( m_ch2SweepRateKnob, KNOB_X7, KNOB_Y2, tr( "Sweep rate" ), "", "" )
dcx = 117;
makedcled( ch2_dc1, dcx, 99, tr( "12.5% Duty cycle" ), "nesdc1_on" )
dcx += 13;
makedcled( ch2_dc2, dcx, 99, tr( "25% Duty cycle" ), "nesdc2_on" )
dcx += 13;
makedcled( ch2_dc3, dcx, 99, tr( "50% Duty cycle" ), "nesdc3_on" )
dcx += 13;
makedcled( ch2_dc4, dcx, 99, tr( "75% Duty cycle" ), "nesdc4_on" )
m_ch2DutyCycleGrp = new automatableButtonGroup( this );
m_ch2DutyCycleGrp -> addButton( ch2_dc1 );
m_ch2DutyCycleGrp -> addButton( ch2_dc2 );
m_ch2DutyCycleGrp -> addButton( ch2_dc3 );
m_ch2DutyCycleGrp -> addButton( ch2_dc4 );
//channel 3
makenesled( m_ch3EnabledBtn, KNOB_X1, KNOB_Y3 - 12, tr( "Enable channel 3" ) )
makeknob( m_ch3VolumeKnob, KNOB_X1, KNOB_Y3, tr( "Volume" ), "", "" )
makeknob( m_ch3CrsKnob, KNOB_X2, KNOB_Y3, tr( "Coarse detune" ), "", "" )
//channel 4
makeknob( m_ch4VolumeKnob, KNOB_X1, KNOB_Y4, tr( "Volume" ), "", "" )
makeknob( m_ch4NoiseFreqKnob, KNOB_X2, KNOB_Y4, tr( "Noise Frequency" ), "", "" )
makeknob( m_ch4EnvLenKnob, KNOB_X3, KNOB_Y4, tr( "Envelope length" ), "", "" )
makeknob( m_ch4SweepKnob, KNOB_X4, KNOB_Y4, tr( "Frequency sweep" ), "", "" )
makenesled( m_ch4EnabledBtn, KNOB_X1, KNOB_Y4 - 12, tr( "Enable channel 4" ) )
makenesled( m_ch4EnvEnabledBtn, KNOB_X3, KNOB_Y4 - 12, tr( "Enable envelope 4" ) )
makenesled( m_ch4EnvLoopedBtn, 129, KNOB_Y4 - 12, tr( "Enable envelope 4 loop" ) )
makenesled( m_ch4NoiseQuantizeBtn, 162, KNOB_Y4 - 12, tr( "Quantize noise frequency when using note frequency" ) )
makenesled( m_ch4NoiseFreqModeBtn, 148, 203, tr( "Use note frequency for noise" ) )
makenesled( m_ch4NoiseModeBtn, 148, 224, tr( "Noise mode" ) )
//master
makeknob( m_masterVolKnob, KNOB_X4, KNOB_Y3, tr( "Master volume" ), "", "" )
makeknob( m_vibratoKnob, KNOB_X5, KNOB_Y3, tr( "Vibrato" ), "", "" )
}
void NesInstrumentView::modelChanged()
{
auto nes = castModel<NesInstrument>();
m_ch1EnabledBtn->setModel( &nes->m_ch1Enabled );
m_ch1CrsKnob->setModel( &nes->m_ch1Crs );
m_ch1VolumeKnob->setModel( &nes->m_ch1Volume );
m_ch1EnvEnabledBtn->setModel( &nes->m_ch1EnvEnabled );
m_ch1EnvLoopedBtn->setModel( &nes->m_ch1EnvLooped );
m_ch1EnvLenKnob->setModel( &nes->m_ch1EnvLen );
m_ch1DutyCycleGrp->setModel( &nes->m_ch1DutyCycle );
m_ch1SweepEnabledBtn->setModel( &nes->m_ch1SweepEnabled );
m_ch1SweepAmtKnob->setModel( &nes->m_ch1SweepAmt );
m_ch1SweepRateKnob->setModel( &nes->m_ch1SweepRate );
// channel 2
m_ch2EnabledBtn->setModel( &nes->m_ch2Enabled );
m_ch2CrsKnob->setModel( &nes->m_ch2Crs );
m_ch2VolumeKnob->setModel( &nes->m_ch2Volume );
m_ch2EnvEnabledBtn->setModel( &nes->m_ch2EnvEnabled );
m_ch2EnvLoopedBtn->setModel( &nes->m_ch2EnvLooped );
m_ch2EnvLenKnob->setModel( &nes->m_ch2EnvLen );
m_ch2DutyCycleGrp->setModel( &nes->m_ch2DutyCycle );
m_ch2SweepEnabledBtn->setModel( &nes->m_ch2SweepEnabled );
m_ch2SweepAmtKnob->setModel( &nes->m_ch2SweepAmt );
m_ch2SweepRateKnob->setModel( &nes->m_ch2SweepRate );
//channel 3
m_ch3EnabledBtn->setModel( &nes->m_ch3Enabled );
m_ch3CrsKnob->setModel( &nes->m_ch3Crs );
m_ch3VolumeKnob->setModel( &nes->m_ch3Volume );
//channel 4
m_ch4EnabledBtn->setModel( &nes->m_ch4Enabled );
m_ch4VolumeKnob->setModel( &nes->m_ch4Volume );
m_ch4EnvEnabledBtn->setModel( &nes->m_ch4EnvEnabled );
m_ch4EnvLoopedBtn->setModel( &nes->m_ch4EnvLooped );
m_ch4EnvLenKnob->setModel( &nes->m_ch4EnvLen );
m_ch4NoiseModeBtn->setModel( &nes->m_ch4NoiseMode );
m_ch4NoiseFreqModeBtn->setModel( &nes->m_ch4NoiseFreqMode );
m_ch4NoiseFreqKnob->setModel( &nes->m_ch4NoiseFreq );
m_ch4SweepKnob->setModel( &nes->m_ch4Sweep );
m_ch4NoiseQuantizeBtn->setModel( &nes->m_ch4NoiseQuantize );
//master
m_masterVolKnob->setModel( &nes->m_masterVol );
m_vibratoKnob->setModel( &nes->m_vibrato );
}
} // namespace gui
extern "C"
{
// necessary for getting instance out of shared lib
PLUGIN_EXPORT Plugin * lmms_plugin_main( Model *m, void * _data )
{
return( new NesInstrument( static_cast<InstrumentTrack *>( m ) ) );
}
}
} // namespace lmms
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