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lmms/plugins/Sfxr/Sfxr.cpp
Fawn 4a089a19dc Update math functions to C++ standard library (#7685) 
* use c++ std::* math functions
This updates usages of sin, cos, tan, pow, exp, log, log10, sqrt, fmod, fabs, and fabsf,
excluding any usages that look like they might be part of a submodule or 3rd-party code.
There's probably some std math functions not listed here that haven't been updated yet.

* fix std::sqrt typo

lmao one always sneaks by

* Apply code review suggestions
- std::pow(2, x) -> std::exp2(x)
- std::pow(10, x) -> lmms::fastPow10f(x)
- std::pow(x, 2) -> x * x, std::pow(x, 3) -> x * x * x, etc.
- Resolve TODOs, fix typos, and so forth

Co-authored-by: Rossmaxx <74815851+Rossmaxx@users.noreply.github.com>

* Fix double -> float truncation, DrumSynth fix

I mistakenly introduced a bug in my recent PR regarding template
constants, in which a -1 that was supposed to appear outside of an abs()
instead was moved inside it, screwing up the generated waveform. I fixed
that and also simplified the function by factoring out the phase domain
wrapping using the new `ediv()` function from this PR. It should behave
how it's supposed to now... assuming all my parentheses are in the right
place lol

* Annotate magic numbers with TODOs for C++20

* On second thought, why wait?

What else is lmms::numbers for?

* begone inline

Co-authored-by: Rossmaxx <74815851+Rossmaxx@users.noreply.github.com>

* begone other inline

Co-authored-by: Rossmaxx <74815851+Rossmaxx@users.noreply.github.com>

* Re-inline function in lmms_math.h

For functions, constexpr implies inline so this just re-adds inline to
the one that isn't constexpr yet

* Formatting fixes, readability improvements

Co-authored-by: Dalton Messmer <messmer.dalton@gmail.com>

* Fix previously missed pow() calls, cleanup

Co-authored-by: Dalton Messmer <messmer.dalton@gmail.com>

* Just delete ediv() entirely lmao

No ediv(), no std::fmod(), no std::remainder(), just std::floor().
It should all work for negative phase inputs as well. If I end up
needing ediv() in the future, I can add it then.

* Simplify DrumSynth triangle waveform

This reuses more work and is also a lot more easy to visualize.

It's probably a meaningless micro-optimization, but it might be worth changing it back to a switch-case and just calculating ph_tau and saw01 at the beginning of the function in all code paths, even if it goes unused for the first two cases. Guess I'll see if anybody has strong opinions about it.

* Move multiplication inside abs()

* Clean up a few more pow(x, 2) -> x * x

* Remove numbers::inv_pi, numbers::inv_tau

* delete spooky leading 0

Co-authored-by: Dalton Messmer <messmer.dalton@gmail.com>

---------

Co-authored-by: Rossmaxx <74815851+Rossmaxx@users.noreply.github.com>
Co-authored-by: Dalton Messmer <messmer.dalton@gmail.com>
2025-02-08 23:50:02 -05:00

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/*
* Sfxr.cpp - port of sfxr to LMMS
* Originally written by Tomas Pettersson. For the original license,
* please read readme.txt in this directory
*
* Copyright (c) 2014 Wong Cho Ching
*
* 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 <cstdlib>
#include <ctime>
#define rnd(n) (rand()%(n+1))
#define PI 3.14159265f
float frnd(float range)
{
return (float)rnd(10000)/10000*range;
}
#include <cmath>
#include <QDomElement>
#include "Sfxr.h"
#include "AudioEngine.h"
#include "Engine.h"
#include "InstrumentTrack.h"
#include "Knob.h"
#include "NotePlayHandle.h"
#include "PixmapButton.h"
#include "MidiEvent.h"
#include "embed.h"
#include "plugin_export.h"
namespace lmms
{
extern "C"
{
Plugin::Descriptor PLUGIN_EXPORT sfxr_plugin_descriptor =
{
LMMS_STRINGIFY( PLUGIN_NAME ),
"sfxr",
QT_TRANSLATE_NOOP( "PluginBrowser",
"LMMS port of sfxr" ),
"Wong Cho Ching",
0x0100,
Plugin::Type::Instrument,
new PluginPixmapLoader( "logo" ),
nullptr,
nullptr,
} ;
}
SfxrSynth::SfxrSynth( const SfxrInstrument * s ):
s(s),
playing_sample( true )
{
resetSample( false );
}
void SfxrSynth::resetSample( bool restart )
{
if(!restart)
{
phase=0;
}
fperiod=100.0/(s->m_startFreqModel.value()*s->m_startFreqModel.value()+0.001);
period=(int)fperiod;
fmaxperiod=100.0/(s->m_minFreqModel.value()*s->m_minFreqModel.value()+0.001);
const auto sv = static_cast<double>(s->m_slideModel.value());
const auto dsv = static_cast<double>(s->m_dSlideModel.value());
fslide = 1.0 - sv * sv * sv * 0.01;
fdslide = -dsv * dsv * dsv * 0.000001;
square_duty=0.5f-s->m_sqrDutyModel.value()*0.5f;
square_slide=-s->m_sqrSweepModel.value()*0.00005f;
const auto cha = static_cast<double>(s->m_changeAmtModel.value());
arp_mod = (cha >= 0.0)
? 1.0 - cha * cha * 0.9
: 1.0 + cha * cha * 10.0;
arp_time = 0;
const auto chs = 1.f - s->m_changeSpeedModel.value();
arp_limit = (chs == 0.f) ? 0 : static_cast<int>(chs * chs * 20000 + 32);
if(!restart)
{
// reset filter
fltp=0.0f;
fltdp=0.0f;
fltw = std::pow(s->m_lpFilCutModel.value(), 3.f) * 0.1f;
fltw_d=1.0f+s->m_lpFilCutSweepModel.value()*0.0001f;
fltdmp = 5.0f / (1.0f + std::pow(s->m_lpFilResoModel.value(), 2.0f) * 20.0f) * (0.01f + fltw);
if(fltdmp>0.8f) fltdmp=0.8f;
fltphp=0.0f;
flthp = std::pow(s->m_hpFilCutModel.value(), 2.f) * 0.1f;
flthp_d=1.0+s->m_hpFilCutSweepModel.value()*0.0003f;
// reset vibrato
vib_phase=0.0f;
vib_speed = std::pow(s->m_vibSpeedModel.value(), 2.f) * 0.01f;
vib_amp=s->m_vibDepthModel.value()*0.5f;
// reset envelope
env_vol=0.0f;
env_stage=0;
env_time=0;
env_length[0]=(int)(s->m_attModel.value()*s->m_attModel.value()*99999.0f)+1;
env_length[1]=(int)(s->m_holdModel.value()*s->m_holdModel.value()*99999.0f)+1;
env_length[2]=(int)(s->m_decModel.value()*s->m_decModel.value()*99999.0f)+1;
fphase = std::pow(s->m_phaserOffsetModel.value(), 2.f) * 1020.f;
if(s->m_phaserOffsetModel.value()<0.0f) fphase=-fphase;
fdphase = std::pow(s->m_phaserSweepModel.value(), 2.f) * 1.f;
if(s->m_phaserSweepModel.value()<0.0f) fdphase=-fdphase;
iphase=abs((int)fphase);
ipp=0;
phaser_buffer.fill(0.0f);
for (auto& noiseSample : noise_buffer)
{
noiseSample = frnd(2.0f) - 1.0f;
}
rep_time=0;
rep_limit = static_cast<int>(std::pow(1.0f - s->m_repeatSpeedModel.value(), 2.0f) * 20000 + 32);
if(s->m_repeatSpeedModel.value()==0.0f)
rep_limit=0;
}
}
void SfxrSynth::update( SampleFrame* buffer, const int32_t frameNum )
{
for(int i=0;i<frameNum;i++)
{
if(!playing_sample)
{
for( ch_cnt_t j=0; j < DEFAULT_CHANNELS; j++ )
{
buffer[i][j]=0.0f;
}
}
rep_time++;
if(rep_limit!=0 && rep_time>=rep_limit)
{
rep_limit=0;
resetSample(true);
}
// frequency envelopes/arpeggios
arp_time++;
if(arp_limit!=0 && arp_time>=arp_limit)
{
arp_limit=0;
fperiod*=arp_mod;
}
fslide+=fdslide;
fperiod*=fslide;
if(fperiod>fmaxperiod)
{
fperiod=fmaxperiod;
if(s->m_minFreqModel.value()>0.0f)
playing_sample=false;
}
float rfperiod=fperiod;
if(vib_amp>0.0f)
{
vib_phase+=vib_speed;
rfperiod = fperiod * (1.0 + std::sin(vib_phase) * vib_amp);
}
period=(int)rfperiod;
if(period<8) period=8;
square_duty+=square_slide;
if(square_duty<0.0f) square_duty=0.0f;
if(square_duty>0.5f) square_duty=0.5f;
// volume envelope
env_time++;
if(env_time>env_length[env_stage])
{
env_time=0;
env_stage++;
if(env_stage==3)
playing_sample=false;
}
if(env_stage==0)
env_vol=(float)env_time/env_length[0];
if(env_stage==1)
{ env_vol = 1.0f + (1.0f - static_cast<float>(env_time) / env_length[1]) * 2.0f * s->m_susModel.value(); }
if(env_stage==2)
env_vol=1.0f-(float)env_time/env_length[2];
// phaser step
fphase+=fdphase;
iphase=abs((int)fphase);
if(iphase>1023) iphase=1023;
if(flthp_d!=0.0f)
{
flthp*=flthp_d;
if(flthp<0.00001f) flthp=0.00001f;
if(flthp>0.1f) flthp=0.1f;
}
float ssample=0.0f;
for(int si=0;si<8;si++) // 8x supersampling
{
float sample=0.0f;
phase++;
if(phase>=period)
{
// phase=0;
phase%=period;
if(s->m_waveFormModel.value()==3)
for (auto& noiseSample : noise_buffer)
{
noiseSample = frnd(2.0f) - 1.0f;
}
}
// base waveform
float fp=(float)phase/period;
switch(s->m_waveFormModel.value())
{
case 0: // square
if(fp<square_duty)
sample=0.5f;
else
sample=-0.5f;
break;
case 1: // sawtooth
sample=1.0f-fp*2;
break;
case 2: // sine
sample=(float)sin(fp*2*PI);
break;
case 3: // noise
sample=noise_buffer[phase*32/period];
break;
}
// lp filter
float pp=fltp;
fltw*=fltw_d;
if(fltw<0.0f) fltw=0.0f;
if(fltw>0.1f) fltw=0.1f;
if(s->m_lpFilCutModel.value()!=1.0f)
{
fltdp+=(sample-fltp)*fltw;
fltdp-=fltdp*fltdmp;
}
else
{
fltp=sample;
fltdp=0.0f;
}
fltp+=fltdp;
// hp filter
fltphp+=fltp-pp;
fltphp-=fltphp*flthp;
sample=fltphp;
// phaser
phaser_buffer[ipp&1023]=sample;
sample+=phaser_buffer[(ipp-iphase+1024)&1023];
ipp=(ipp+1)&1023;
// final accumulation and envelope application
ssample+=sample*env_vol;
}
//ssample=ssample/8*master_vol;
//ssample*=2.0f*sound_vol;
ssample*=0.025f;
if(buffer!=nullptr)
{
if(ssample>1.0f) ssample=1.0f;
if(ssample<-1.0f) ssample=-1.0f;
for( ch_cnt_t j=0; j<DEFAULT_CHANNELS; j++ )
{
buffer[i][j]=ssample;
}
}
}
}
bool SfxrSynth::isPlaying() const
{
return playing_sample;
}
SfxrInstrument::SfxrInstrument( InstrumentTrack * _instrument_track ) :
Instrument( _instrument_track, &sfxr_plugin_descriptor ),
m_attModel(0.0f, this, "Attack Time"),
m_holdModel(0.3f, this, "Sustain Time"),
m_susModel(0.0f, this, "Sustain Punch"),
m_decModel(0.4f, this, "Decay Time"),
m_startFreqModel(0.3f, this, "Start Frequency"),
m_minFreqModel(0.0f, this, "Min Frequency"),
m_slideModel(0.0f, this, "Slide"),
m_dSlideModel(0.0f, this, "Delta Slide"),
m_vibDepthModel(0.0f, this, "Vibrato Depth"),
m_vibSpeedModel(0.0f, this, "Vibrato Speed"),
m_changeAmtModel(0.0f, this, "Change Amount"),
m_changeSpeedModel(0.0f, this, "Change Speed"),
m_sqrDutyModel(0.0f, this, "Square Duty"),
m_sqrSweepModel(0.0f, this, "Duty Sweep"),
m_repeatSpeedModel(0.0f, this, "Repeat Speed"),
m_phaserOffsetModel(0.0f, this, "Phaser Offset"),
m_phaserSweepModel(0.0f, this, "Phaser Sweep"),
m_lpFilCutModel(1.0f, this, "LP Filter Cutoff"),
m_lpFilCutSweepModel(0.0f, this, "LP Filter Cutoff Sweep"),
m_lpFilResoModel(0.0f, this, "LP Filter Resonance"),
m_hpFilCutModel(0.0f, this, "HP Filter Cutoff"),
m_hpFilCutSweepModel(0.0f, this, "HP Filter Cutoff Sweep"),
m_waveFormModel( static_cast<int>(SfxrWave::Square), 0, NumSfxrWaves-1, this, tr( "Wave" ) )
{
}
void SfxrInstrument::saveSettings( QDomDocument & _doc, QDomElement & _this )
{
_this.setAttribute( "version", "1" );
m_attModel.saveSettings( _doc, _this, "att" );
m_holdModel.saveSettings( _doc, _this, "hold" );
m_susModel.saveSettings( _doc, _this, "sus" );
m_decModel.saveSettings( _doc, _this, "dec" );
m_startFreqModel.saveSettings( _doc, _this, "startFreq" );
m_minFreqModel.saveSettings( _doc, _this, "minFreq" );
m_slideModel.saveSettings( _doc, _this, "slide" );
m_dSlideModel.saveSettings( _doc, _this, "dSlide" );
m_vibDepthModel.saveSettings( _doc, _this, "vibDepth" );
m_vibSpeedModel.saveSettings( _doc, _this, "vibSpeed" );
m_changeAmtModel.saveSettings( _doc, _this, "changeAmt" );
m_changeSpeedModel.saveSettings( _doc, _this, "changeSpeed" );
m_sqrDutyModel.saveSettings( _doc, _this, "sqrDuty" );
m_sqrSweepModel.saveSettings( _doc, _this, "sqrSweep" );
m_repeatSpeedModel.saveSettings( _doc, _this, "repeatSpeed" );
m_phaserOffsetModel.saveSettings( _doc, _this, "phaserOffset" );
m_phaserSweepModel.saveSettings( _doc, _this, "phaserSweep" );
m_lpFilCutModel.saveSettings( _doc, _this, "lpFilCut" );
m_lpFilCutSweepModel.saveSettings( _doc, _this, "lpFilCutSweep" );
m_lpFilResoModel.saveSettings( _doc, _this, "lpFilReso" );
m_hpFilCutModel.saveSettings( _doc, _this, "hpFilCut" );
m_hpFilCutSweepModel.saveSettings( _doc, _this, "hpFilCutSweep" );
m_waveFormModel.saveSettings( _doc, _this, "waveForm" );
}
void SfxrInstrument::loadSettings( const QDomElement & _this )
{
m_attModel.loadSettings(_this, "att" );
m_holdModel.loadSettings( _this, "hold" );
m_susModel.loadSettings( _this, "sus" );
m_decModel.loadSettings( _this, "dec" );
m_startFreqModel.loadSettings( _this, "startFreq" );
m_minFreqModel.loadSettings( _this, "minFreq" );
m_slideModel.loadSettings( _this, "slide" );
m_dSlideModel.loadSettings( _this, "dSlide" );
m_vibDepthModel.loadSettings( _this, "vibDepth" );
m_vibSpeedModel.loadSettings( _this, "vibSpeed" );
m_changeAmtModel.loadSettings( _this, "changeAmt" );
m_changeSpeedModel.loadSettings( _this, "changeSpeed" );
m_sqrDutyModel.loadSettings( _this, "sqrDuty" );
m_sqrSweepModel.loadSettings( _this, "sqrSweep" );
m_repeatSpeedModel.loadSettings( _this, "repeatSpeed" );
m_phaserOffsetModel.loadSettings( _this, "phaserOffset" );
m_phaserSweepModel.loadSettings( _this, "phaserSweep" );
m_lpFilCutModel.loadSettings( _this, "lpFilCut" );
m_lpFilCutSweepModel.loadSettings( _this, "lpFilCutSweep" );
m_lpFilResoModel.loadSettings( _this, "lpFilReso" );
m_hpFilCutModel.loadSettings( _this, "hpFilCut" );
m_hpFilCutSweepModel.loadSettings( _this, "hpFilCutSweep" );
m_waveFormModel.loadSettings( _this, "waveForm" );
}
QString SfxrInstrument::nodeName() const
{
return( sfxr_plugin_descriptor.name );
}
void SfxrInstrument::playNote( NotePlayHandle * _n, SampleFrame* _working_buffer )
{
float currentSampleRate = Engine::audioEngine()->outputSampleRate();
fpp_t frameNum = _n->framesLeftForCurrentPeriod();
const f_cnt_t offset = _n->noteOffset();
if (!_n->m_pluginData)
{
_n->m_pluginData = new SfxrSynth( this );
}
else if( static_cast<SfxrSynth*>(_n->m_pluginData)->isPlaying() == false )
{
zeroSampleFrames(_working_buffer + offset, frameNum);
_n->noteOff();
return;
}
const auto baseFreq = instrumentTrack()->baseFreq();
int32_t pitchedFrameNum = (_n->frequency() / baseFreq) * frameNum;
pitchedFrameNum /= ( currentSampleRate / 44100 );
// debug code
// qDebug( "pFN %d", pitchedFrameNum );
auto pitchedBuffer = new SampleFrame[pitchedFrameNum];
static_cast<SfxrSynth*>(_n->m_pluginData)->update( pitchedBuffer, pitchedFrameNum );
for( fpp_t i=0; i<frameNum; i++ )
{
for( ch_cnt_t j=0; j<DEFAULT_CHANNELS; j++ )
{
_working_buffer[i+offset][j] = pitchedBuffer[i*pitchedFrameNum/frameNum][j];
}
}
delete[] pitchedBuffer;
applyRelease( _working_buffer, _n );
}
void SfxrInstrument::deleteNotePluginData( NotePlayHandle * _n )
{
delete static_cast<SfxrSynth *>( _n->m_pluginData );
}
gui::PluginView * SfxrInstrument::instantiateView( QWidget * _parent )
{
return( new gui::SfxrInstrumentView( this, _parent ) );
}
void SfxrInstrument::resetModels()
{
m_attModel.reset();
m_holdModel.reset();
m_susModel.reset();
m_decModel.reset();
m_startFreqModel.reset();
m_minFreqModel.reset();
m_slideModel.reset();
m_dSlideModel.reset();
m_vibDepthModel.reset();
m_vibSpeedModel.reset();
m_changeAmtModel.reset();
m_changeSpeedModel.reset();
m_sqrDutyModel.reset();
m_sqrSweepModel.reset();
m_repeatSpeedModel.reset();
m_phaserOffsetModel.reset();
m_phaserSweepModel.reset();
m_lpFilCutModel.reset();
m_lpFilCutSweepModel.reset();
m_lpFilResoModel.reset();
m_hpFilCutModel.reset();
m_hpFilCutSweepModel.reset();
m_waveFormModel.reset();
}
namespace gui
{
class SfxrKnob : public Knob
{
public:
SfxrKnob( QWidget * _parent ) :
Knob( KnobType::Styled, _parent )
{
setFixedSize( 20, 20 );
setCenterPointX( 10.0 );
setCenterPointY( 10.0 );
setTotalAngle( 270.0 );
setLineWidth( 1 );
}
};
#define createKnob( _knob, _x, _y, _name )\
_knob = new SfxrKnob( this ); \
_knob->setHintText( tr( _name ":" ), "" ); \
_knob->move( _x, _y ); \
_knob->setToolTip(tr(_name));
#define createButton( _button, _x, _y, _name, _resName )\
_button = new PixmapButton( this, tr( _name ) );\
_button->move( _x, _y );\
_button->setActiveGraphic( embed::getIconPixmap( _resName "_active" ) );\
_button->setInactiveGraphic( embed::getIconPixmap( _resName "_inactive" ) );\
_button->setToolTip(tr(_name));
#define createButtonLocalGraphic( _button, _x, _y, _name, _resName )\
_button = new PixmapButton( this, tr( _name ) );\
_button->move( _x, _y );\
_button->setActiveGraphic( PLUGIN_NAME::getIconPixmap( _resName "_active" ) );\
_button->setInactiveGraphic( PLUGIN_NAME::getIconPixmap( _resName "_inactive" ) );\
_button->setToolTip(tr(_name));
SfxrInstrumentView::SfxrInstrumentView( Instrument * _instrument,
QWidget * _parent ) :
InstrumentViewFixedSize( _instrument, _parent )
{
srand(time(nullptr));
setAutoFillBackground( true );
QPalette pal;
pal.setBrush( backgroundRole(), PLUGIN_NAME::getIconPixmap( "artwork" ) );
setPalette( pal );
createKnob(m_attKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*0, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*0, "Attack Time");
createKnob(m_holdKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*1, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*0, "Sustain Time");
createKnob(m_susKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*2, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*0, "Sustain Punch");
createKnob(m_decKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*3, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*0, "Decay Time");
m_attKnob ->setObjectName( "envKnob" );
m_holdKnob ->setObjectName( "envKnob" );
m_susKnob ->setObjectName( "envKnob" );
m_decKnob ->setObjectName( "envKnob" );
createKnob(m_startFreqKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*0, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*1, "Start Frequency");
createKnob(m_minFreqKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*1, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*1, "Min Frequency");
createKnob(m_slideKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*2, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*1, "Slide");
createKnob(m_dSlideKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*3, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*1, "Delta Slide");
createKnob(m_vibDepthKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*4, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*1, "Vibrato Depth");
createKnob(m_vibSpeedKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*5, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*1, "Vibrato Speed");
m_startFreqKnob ->setObjectName( "freqKnob" );
m_minFreqKnob ->setObjectName( "freqKnob" );
m_slideKnob ->setObjectName( "freqKnob" );
m_dSlideKnob ->setObjectName( "freqKnob" );
m_vibDepthKnob ->setObjectName( "freqKnob" );
m_vibSpeedKnob ->setObjectName( "freqKnob" );
createKnob(m_changeAmtKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*0, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*2, "Change Amount");
createKnob(m_changeSpeedKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*1, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*2, "Change Speed");
m_changeAmtKnob ->setObjectName( "changeKnob" );
m_changeSpeedKnob ->setObjectName( "changeKnob" );
createKnob(m_sqrDutyKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*3, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*2, "Square Duty (Square wave only)");
createKnob(m_sqrSweepKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*4, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*2, "Duty Sweep (Square wave only)");
m_sqrDutyKnob ->setObjectName( "sqrKnob" );
m_sqrSweepKnob ->setObjectName( "sqrKnob" );
createKnob(m_repeatSpeedKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*0, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*3, "Repeat Speed");
m_repeatSpeedKnob ->setObjectName( "repeatKnob" );
createKnob(m_phaserOffsetKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*3, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*3, "Phaser Offset");
createKnob(m_phaserSweepKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*4, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*3, "Phaser Sweep");
m_phaserOffsetKnob ->setObjectName( "phaserKnob" );
m_phaserSweepKnob ->setObjectName( "phaserKnob" );
createKnob(m_lpFilCutKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*0, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*4, "LP Filter Cutoff");
createKnob(m_lpFilCutSweepKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*1, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*4, "LP Filter Cutoff Sweep");
createKnob(m_lpFilResoKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*2, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*4, "LP Filter Resonance");
createKnob(m_hpFilCutKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*3, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*4, "HP Filter Cutoff");
createKnob(m_hpFilCutSweepKnob, KNOBS_BASE_X+KNOB_BLOCK_SIZE_X*4, KNOBS_BASE_Y+KNOB_BLOCK_SIZE_Y*4, "HP Filter Cutoff Sweep");
m_lpFilCutKnob ->setObjectName( "filterKnob" );
m_lpFilCutSweepKnob ->setObjectName( "filterKnob" );
m_lpFilResoKnob ->setObjectName( "filterKnob" );
m_hpFilCutKnob ->setObjectName( "filterKnob" );
m_hpFilCutSweepKnob ->setObjectName( "filterKnob" );
createButtonLocalGraphic(m_sqrWaveBtn, KNOBS_BASE_X+WAVEFORM_BUTTON_WIDTH*0, WAVEFORM_BASE_Y, "Square Wave", "sfxr_square_wave");
createButtonLocalGraphic(m_sawWaveBtn, KNOBS_BASE_X+WAVEFORM_BUTTON_WIDTH*1, WAVEFORM_BASE_Y, "Saw Wave", "sfxr_saw_wave");
createButtonLocalGraphic(m_sinWaveBtn, KNOBS_BASE_X+WAVEFORM_BUTTON_WIDTH*2, WAVEFORM_BASE_Y, "Sine Wave", "sfxr_sin_wave");
createButtonLocalGraphic(m_noiseWaveBtn, KNOBS_BASE_X+WAVEFORM_BUTTON_WIDTH*3, WAVEFORM_BASE_Y, "Noise", "sfxr_white_noise_wave");
m_waveBtnGroup = new automatableButtonGroup( this );
m_waveBtnGroup->addButton(m_sqrWaveBtn);
m_waveBtnGroup->addButton(m_sawWaveBtn);
m_waveBtnGroup->addButton(m_sinWaveBtn);
m_waveBtnGroup->addButton(m_noiseWaveBtn);
createButtonLocalGraphic(m_pickupBtn, GENERATOR_BASE_X+GENERATOR_BUTTON_WIDTH*0, GENERATOR_BASE_Y, "Generate pick up/coin sfx", "pickup");
createButtonLocalGraphic(m_laserBtn, GENERATOR_BASE_X+GENERATOR_BUTTON_WIDTH*1, GENERATOR_BASE_Y, "Generate laser/shoot sfx", "laser");
createButtonLocalGraphic(m_explosionBtn, GENERATOR_BASE_X+GENERATOR_BUTTON_WIDTH*2, GENERATOR_BASE_Y, "Generate explosion sfx", "explosion");
createButtonLocalGraphic(m_powerupBtn, GENERATOR_BASE_X+GENERATOR_BUTTON_WIDTH*3, GENERATOR_BASE_Y, "Generate power up sfx", "powerup");
createButtonLocalGraphic(m_hitBtn, GENERATOR_BASE_X+GENERATOR_BUTTON_WIDTH*4, GENERATOR_BASE_Y, "Generate hit/hurt sfx", "hit");
createButtonLocalGraphic(m_jumpBtn, GENERATOR_BASE_X+GENERATOR_BUTTON_WIDTH*5, GENERATOR_BASE_Y, "Generate jump sfx", "jump");
createButtonLocalGraphic(m_blipBtn, GENERATOR_BASE_X+GENERATOR_BUTTON_WIDTH*6, GENERATOR_BASE_Y, "Generate blip/select sfx", "blip");
connect( m_pickupBtn, SIGNAL ( clicked() ), this, SLOT ( genPickup() ) );
connect( m_laserBtn, SIGNAL ( clicked() ), this, SLOT ( genLaser() ) );
connect( m_explosionBtn, SIGNAL ( clicked() ), this, SLOT ( genExplosion() ) );
connect( m_powerupBtn, SIGNAL ( clicked() ), this, SLOT ( genPowerup() ) );
connect( m_hitBtn, SIGNAL ( clicked() ), this, SLOT ( genHit() ) );
connect( m_jumpBtn, SIGNAL ( clicked() ), this, SLOT ( genJump() ) );
connect( m_blipBtn, SIGNAL ( clicked() ), this, SLOT ( genBlip() ) );
createButtonLocalGraphic(m_randomizeBtn, RAND_BUTTON_X, RAND_BUTTON_Y, "Generate random sfx", "randomize");
createButtonLocalGraphic(m_mutateBtn, MUTA_BUTTON_X, MUTA_BUTTON_Y, "Mutate sfx", "mutate");
connect( m_randomizeBtn, SIGNAL ( clicked() ), this, SLOT ( randomize() ) );
connect( m_mutateBtn, SIGNAL ( clicked() ), this, SLOT ( mutate() ) );
//preview sound on generator/random/mutate button clicked
/* // disabled for now
connect( m_pickupBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
connect( m_laserBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
connect( m_explosionBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
connect( m_powerupBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
connect( m_hitBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
connect( m_jumpBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
connect( m_blipBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
connect( m_randomizeBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
connect( m_mutateBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
*/
}
void SfxrInstrumentView::modelChanged()
{
auto s = castModel<SfxrInstrument>();
m_attKnob->setModel( &s->m_attModel );
m_holdKnob->setModel( &s->m_holdModel );
m_susKnob->setModel( &s->m_susModel );
m_decKnob->setModel( &s->m_decModel );
m_startFreqKnob->setModel( &s->m_startFreqModel );
m_minFreqKnob->setModel( &s->m_minFreqModel );
m_slideKnob->setModel( &s->m_slideModel );
m_dSlideKnob->setModel( &s->m_dSlideModel );
m_vibDepthKnob->setModel( &s->m_vibDepthModel );
m_vibSpeedKnob->setModel( &s->m_vibSpeedModel );
m_changeAmtKnob->setModel( &s->m_changeAmtModel );
m_changeSpeedKnob->setModel( &s->m_changeSpeedModel );
m_sqrDutyKnob->setModel( &s->m_sqrDutyModel );
m_sqrSweepKnob->setModel( &s->m_sqrSweepModel );
m_repeatSpeedKnob->setModel( &s->m_repeatSpeedModel );
m_phaserOffsetKnob->setModel( &s->m_phaserOffsetModel );
m_phaserSweepKnob->setModel( &s->m_phaserSweepModel );
m_lpFilCutKnob->setModel( &s->m_lpFilCutModel );
m_lpFilCutSweepKnob->setModel( &s->m_lpFilCutSweepModel );
m_lpFilResoKnob->setModel( &s->m_lpFilResoModel );
m_hpFilCutKnob->setModel( &s->m_hpFilCutModel );
m_hpFilCutSweepKnob->setModel( &s->m_hpFilCutSweepModel );
m_waveBtnGroup->setModel( &s->m_waveFormModel );
}
void SfxrInstrumentView::genPickup()
{
auto s = castModel<SfxrInstrument>();
s->resetModels();
s->m_startFreqModel.setValue( 0.4f+frnd(0.5f) );
s->m_attModel.setValue( 0.0f );
s->m_holdModel.setValue( frnd(0.1f) );
s->m_decModel.setValue( 0.1f+frnd(0.4f) );
s->m_susModel.setValue( 0.3f+frnd(0.3f) );
if(rnd(1))
{
s->m_changeSpeedModel.setValue( 0.5f+frnd(0.2f) );
s->m_changeAmtModel.setValue( 0.2f+frnd(0.4f) );
}
}
void SfxrInstrumentView::genLaser()
{
auto s = castModel<SfxrInstrument>();
s->resetModels();
s->m_waveFormModel.setValue( rnd(2) );
if(s->m_waveFormModel.value()==2 && rnd(1))
s->m_waveFormModel.setValue( rnd(1) );
s->m_startFreqModel.setValue( 0.5f+frnd(0.5f) );
s->m_minFreqModel.setValue( s->m_startFreqModel.value()-0.2f-frnd(0.6f) );
if(s->m_minFreqModel.value()<0.2f)
{
s->m_minFreqModel.setValue(0.2f);
}
s->m_slideModel.setValue( -0.15f-frnd(0.2f) );
if(rnd(2)==0)
{
s->m_startFreqModel.setValue( 0.3f+frnd(0.6f) );
s->m_minFreqModel.setValue( frnd(0.1f) );
s->m_slideModel.setValue( -0.35f-frnd(0.3f) );
}
if(rnd(1))
{
s->m_sqrDutyModel.setValue( frnd(0.5f) );
s->m_sqrSweepModel.setValue( 0.2f );
}
else
{
s->m_sqrDutyModel.setValue( 0.4f+frnd(0.5f) );
s->m_sqrSweepModel.setValue( -frnd(0.7f) );
}
s->m_attModel.setValue( 0.0f );
s->m_holdModel.setValue( 0.1f+frnd(0.2f) );
s->m_decModel.setValue( frnd(0.4f) );
if(rnd(1))
{
s->m_susModel.setValue( frnd(0.3f) );
}
if(rnd(2)==0)
{
s->m_phaserOffsetModel.setValue( frnd(0.2f) );
s->m_phaserSweepModel.setValue( -frnd(0.2f) );
}
if(rnd(1))
s->m_hpFilCutModel.setValue( frnd(0.3f) );
}
void SfxrInstrumentView::genExplosion()
{
auto s = castModel<SfxrInstrument>();
s->resetModels();
s->m_waveFormModel.setValue( 3 );
if(rnd(1))
{
s->m_startFreqModel.setValue( 0.1f+frnd(0.4f) );
s->m_slideModel.setValue( -0.1f+frnd(0.4f) );
}
else
{
s->m_startFreqModel.setValue( 0.2f+frnd(0.7f) );
s->m_slideModel.setValue( -0.2f-frnd(0.2f) );
}
s->m_startFreqModel.setValue( s->m_startFreqModel.value()*s->m_startFreqModel.value() );
if(rnd(4)==0)
{
s->m_slideModel.setValue( 0.0f );
}
if(rnd(2)==0)
{
s->m_repeatSpeedModel.setValue( 0.3f+frnd(0.5f) );
}
s->m_attModel.setValue( 0.0f );
s->m_holdModel.setValue( 0.1f+frnd(0.3f) );
s->m_decModel.setValue( 0.5f );
if(rnd(1)==0)
{
s->m_phaserOffsetModel.setValue( -0.3f+frnd(0.9f) );
s->m_phaserSweepModel.setValue( -frnd(0.3f) );
}
s->m_susModel.setValue( 0.2f+frnd(0.6f) );
if(rnd(1))
{
s->m_vibDepthModel.setValue( frnd(0.7f) );
s->m_vibSpeedModel.setValue( frnd(0.6f) );
}
if(rnd(2)==0)
{
s->m_changeSpeedModel.setValue( 0.6f+frnd(0.3f) );
s->m_changeAmtModel.setValue( 0.8f-frnd(1.6f) );
}
}
void SfxrInstrumentView::genPowerup()
{
auto s = castModel<SfxrInstrument>();
s->resetModels();
if(rnd(1))
s->m_waveFormModel.setValue( 1 );
else
s->m_sqrDutyModel.setValue( frnd(0.6f) );
if(rnd(1))
{
s->m_startFreqModel.setValue( 0.2f+frnd(0.3f) );
s->m_slideModel.setValue( 0.1f+frnd(0.4f) );
s->m_repeatSpeedModel.setValue( 0.4f+frnd(0.4f) );
}
else
{
s->m_startFreqModel.setValue( 0.2f+frnd(0.3f) );
s->m_slideModel.setValue( 0.05f+frnd(0.2f) );
if(rnd(1))
{
s->m_vibDepthModel.setValue( frnd(0.7f) );
s->m_vibSpeedModel.setValue( frnd(0.6f) );
}
}
s->m_attModel.setValue( 0.0f );
s->m_holdModel.setValue( frnd(0.4f) );
s->m_decModel.setValue( 0.1f+frnd(0.4f) );
}
void SfxrInstrumentView::genHit()
{
auto s = castModel<SfxrInstrument>();
s->resetModels();
s->m_waveFormModel.setValue( rnd(2) );
if(s->m_waveFormModel.value()==2)
{
s->m_waveFormModel.setValue( 3 );
}
if(s->m_waveFormModel.value()==0)
{
s->m_sqrDutyModel.setValue( frnd(0.6f) );
}
s->m_startFreqModel.setValue( 0.2f+frnd(0.6f) );
s->m_slideModel.setValue( -0.3f-frnd(0.4f) );
s->m_attModel.setValue( 0.0f );
s->m_holdModel.setValue( frnd(0.1f) );
s->m_decModel.setValue( 0.1f+frnd(0.2f) );
if(rnd(1))
{
s->m_hpFilCutModel.setValue( frnd(0.3f) );
}
}
void SfxrInstrumentView::genJump()
{
auto s = castModel<SfxrInstrument>();
s->resetModels();
s->m_waveFormModel.setValue( 0 );
s->m_sqrDutyModel.setValue( frnd(0.6f) );
s->m_startFreqModel.setValue( 0.3f+frnd(0.3f) );
s->m_slideModel.setValue( 0.1f+frnd(0.2f) );
s->m_attModel.setValue( 0.0f );
s->m_holdModel.setValue( 0.1f+frnd(0.3f) );
s->m_decModel.setValue( 0.1f+frnd(0.2f) );
if(rnd(1))
{
s->m_hpFilCutModel.setValue( frnd(0.3f) );
}
if(rnd(1))
{
s->m_lpFilCutModel.setValue( 1.0f-frnd(0.6f) );
}
}
void SfxrInstrumentView::genBlip()
{
auto s = castModel<SfxrInstrument>();
s->resetModels();
s->m_waveFormModel.setValue( rnd(1) );
if( s->m_waveFormModel.value()==0 )
{
s->m_sqrDutyModel.setValue( frnd(0.6f) );
}
s->m_startFreqModel.setValue( 0.2f+frnd(0.4f) );
s->m_attModel.setValue( 0.0f );
s->m_holdModel.setValue( 0.1f+frnd(0.1f) );
s->m_decModel.setValue( frnd(0.2f) );
s->m_hpFilCutModel.setValue( 0.1f );
}
void SfxrInstrumentView::randomize()
{
auto s = castModel<SfxrInstrument>();
s->m_startFreqModel.setValue(std::pow(frnd(2.0f) - 1.0f, 2.0f));
if(rnd(1))
{
s->m_startFreqModel.setValue(std::pow(frnd(2.0f) - 1.0f, 3.0f) + 0.5f);
}
s->m_minFreqModel.setValue( 0.0f );
s->m_slideModel.setValue(std::pow(frnd(2.0f) - 1.0f, 5.0f));
if( s->m_startFreqModel.value()>0.7f && s->m_slideModel.value()>0.2f )
{
s->m_slideModel.setValue( -s->m_slideModel.value() );
}
if( s->m_startFreqModel.value()<0.2f && s->m_slideModel.value()<-0.05f )
{
s->m_slideModel.setValue( -s->m_slideModel.value() );
}
s->m_dSlideModel.setValue(std::pow(frnd(2.0f) - 1.0f, 3.0f));
s->m_sqrDutyModel.setValue( frnd(2.0f)-1.0f );
s->m_sqrSweepModel.setValue(std::pow(frnd(2.0f) - 1.0f, 3.0f));
s->m_vibDepthModel.setValue(std::pow(frnd(2.0f) - 1.0f, 3.0f));
s->m_vibSpeedModel.setValue( frnd(2.0f)-1.0f );
//s->m_vibDelayModel.setValue( frnd(2.0f)-1.0f );
s->m_attModel.setValue(std::pow(frnd(2.0f) - 1.0f, 3.0f));
s->m_holdModel.setValue(std::pow(frnd(2.0f) - 1.0f, 2.0f));
s->m_decModel.setValue( frnd(2.0f)-1.0f );
s->m_susModel.setValue(std::pow(frnd(0.8f), 2.0f));
if(s->m_attModel.value()+s->m_holdModel.value()+s->m_decModel.value()<0.2f)
{
s->m_holdModel.setValue( s->m_holdModel.value()+0.2f+frnd(0.3f) );
s->m_decModel.setValue( s->m_decModel.value()+0.2f+frnd(0.3f) );
}
s->m_lpFilResoModel.setValue( frnd(2.0f)-1.0f );
s->m_lpFilCutModel.setValue(1.0f - std::pow(frnd(1.0f), 3.0f));
s->m_lpFilCutSweepModel.setValue(std::pow(frnd(2.0f) - 1.0f, 3.0f));
if(s->m_lpFilCutModel.value()<0.1f && s->m_lpFilCutSweepModel.value()<-0.05f)
{
s->m_lpFilCutSweepModel.setValue( -s->m_lpFilCutSweepModel.value() );
}
s->m_hpFilCutModel.setValue(std::pow(frnd(1.0f), 5.0f));
s->m_hpFilCutSweepModel.setValue(std::pow(frnd(2.0f) - 1.0f, 5.0f));
s->m_phaserOffsetModel.setValue(std::pow(frnd(2.0f) - 1.0f, 3.0f));
s->m_phaserSweepModel.setValue(std::pow(frnd(2.0f) - 1.0f, 3.0f));
s->m_repeatSpeedModel.setValue( frnd(2.0f)-1.0f );
s->m_changeSpeedModel.setValue( frnd(2.0f)-1.0f );
s->m_changeAmtModel.setValue( frnd(2.0f)-1.0f );
}
void SfxrInstrumentView::mutate()
{
auto s = castModel<SfxrInstrument>();
if(rnd(1)) s->m_startFreqModel.setValue( s->m_startFreqModel.value()+frnd(0.1f)-0.05f );
// if(rnd(1)) s->m_minFreqModel.setValue( s->m_minFreqModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_slideModel.setValue( s->m_slideModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_dSlideModel.setValue( s->m_dSlideModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_sqrDutyModel.setValue( s->m_sqrDutyModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_sqrSweepModel.setValue( s->m_sqrSweepModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_vibDepthModel.setValue( s->m_vibDepthModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_vibSpeedModel.setValue( s->m_vibSpeedModel.value()+frnd(0.1f)-0.05f );
// if(rnd(1)) s->m_vibDelayModel.setValue( s->m_vibDelayModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_attModel.setValue( s->m_attModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_holdModel.setValue( s->m_holdModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_decModel.setValue( s->m_decModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_susModel.setValue( s->m_susModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_lpFilResoModel.setValue( s->m_lpFilResoModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_lpFilCutModel.setValue( s->m_lpFilCutModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_lpFilCutSweepModel.setValue( s->m_lpFilCutSweepModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_hpFilCutModel.setValue( s->m_hpFilCutModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_hpFilCutSweepModel.setValue( s->m_hpFilCutSweepModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_phaserOffsetModel.setValue( s->m_phaserOffsetModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_phaserSweepModel.setValue( s->m_phaserSweepModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_repeatSpeedModel.setValue( s->m_repeatSpeedModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_changeSpeedModel.setValue( s->m_changeSpeedModel.value()+frnd(0.1f)-0.05f );
if(rnd(1)) s->m_changeAmtModel.setValue( s->m_changeAmtModel.value()+frnd(0.1f)-0.05f );
}
void SfxrInstrumentView::previewSound()
{
auto s = castModel<SfxrInstrument>();
InstrumentTrack* it = s->instrumentTrack();
it->silenceAllNotes();
it->processInEvent( MidiEvent( MidiNoteOn, 0, it->baseNoteModel()->value(), MidiDefaultVelocity ) );
}
} // namespace gui
extern "C"
{
// necessary for getting instance out of shared lib
PLUGIN_EXPORT Plugin * lmms_plugin_main( Model* m, void* )
{
return new SfxrInstrument( static_cast<InstrumentTrack *>( m ) );
}
}
} // namespace lmms
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