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lmms/plugins/bit_invader/bit_invader.cpp
Levin Oehlmann f742710758 Macro cleanup (#6095) 
Summary:

* `NULL` -> `nullptr`
* `gui` -> Function `getGUI()`
* `pluginFactory` -> Function `getPluginFactory()`
* `assert` (redefinition) -> using `NDEBUG` instead, which standard `assert` respects.
* `powf` (C stdlib symbol clash) -> removed and all expansions replaced with calls to `std::pow`.
* `exp10` (nonstandard function symbol clash) -> removed and all expansions replaced with calls to `std::pow`.
* `PATH_DEV_DSP` -> File-scope QString of identical name and value.
* `VST_SNC_SHM_KEY_FILE` -> constexpr char* with identical name and value.
* `MM_ALLOC` and `MM_FREE` -> Functions with identical name and implementation.
* `INVAL`, `OUTVAL`, etc. for automation nodes -> Functions with identical names and implementations.
* BandLimitedWave.h: All integer constant macros replaced with constexpr ints of same name and value.
* `FAST_RAND_MAX` -> constexpr int of same name and value.
* `QSTR_TO_STDSTR` -> Function with identical name and equivalent implementation.
* `CCONST` -> constexpr function template with identical name and implementation.
* `F_OPEN_UTF8` -> Function with identical name and equivalent implementation.
* `LADSPA_PATH_SEPARATOR` -> constexpr char with identical name and value.
* `UI_CTRL_KEY` -> constexpr char* with identical name and value.
* `ALIGN_SIZE` -> Renamed to `LMMS_ALIGN_SIZE` and converted from a macro to a constexpr size_t.
* `JACK_MIDI_BUFFER_MAX` -> constexpr size_t with identical name and value.
* versioninfo.h: `PLATFORM`, `MACHINE` and `COMPILER_VERSION` -> prefixed with `LMMS_BUILDCONF_` and converted from macros to constexpr char* literals.
* Header guard _OSCILLOSCOPE -> renamed to OSCILLOSCOPE_H
* Header guard _TIME_DISPLAY_WIDGET -> renamed to TIME_DISPLAY_WIDGET_H
* C-style typecasts in DrumSynth.cpp have been replaced with `static_cast`.
* constexpr numerical constants are initialized with assignment notation instead of curly brace intializers.
* In portsmf, `Alg_seq::operator[]` will throw an exception instead of returning null if the operator index is out of range.

Additionally, in many places, global constants that were declared as `const T foo = bar;` were changed from const to constexpr, leaving them const and making them potentially evaluable at compile time.

Some macros that only appeared in single source files and were unused in those files have been removed entirely.
2021-09-30 18:01:27 +02:00

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/*
* bit_invader.cpp - instrument which uses a usereditable wavetable
*
* Copyright (c) 2006-2008 Andreas Brandmaier <andy/at/brandmaier/dot/de>
*
* 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 "bit_invader.h"
#include "AudioEngine.h"
#include "base64.h"
#include "Engine.h"
#include "Graph.h"
#include "InstrumentTrack.h"
#include "Knob.h"
#include "LedCheckbox.h"
#include "NotePlayHandle.h"
#include "Oscillator.h"
#include "PixmapButton.h"
#include "ToolTip.h"
#include "Song.h"
#include "interpolation.h"
#include "embed.h"
#include "plugin_export.h"
static const int wavetableSize = 200;
static const float defaultNormalizationFactor = 1.0f;
extern "C"
{
Plugin::Descriptor PLUGIN_EXPORT bitinvader_plugin_descriptor =
{
STRINGIFY( PLUGIN_NAME ),
"BitInvader",
QT_TRANSLATE_NOOP( "PluginBrowser",
"Customizable wavetable synthesizer" ),
"Andreas Brandmaier <andreas/at/brandmaier/dot/de>",
0x0100,
Plugin::Instrument,
new PluginPixmapLoader( "logo" ),
nullptr,
nullptr,
} ;
}
bSynth::bSynth( float * _shape, NotePlayHandle * _nph, bool _interpolation,
float _factor, const sample_rate_t _sample_rate ) :
sample_index( 0 ),
sample_realindex( 0 ),
nph( _nph ),
sample_rate( _sample_rate ),
interpolation( _interpolation)
{
sample_shape = new float[wavetableSize];
for (int i=0; i < wavetableSize; ++i)
{
float buf = _shape[i] * _factor;
/* Double check that normalization has been performed correctly,
i.e., the absolute value of all samples is <= 1.0 if _factor
is different to the default normalization factor. If there is
a value > 1.0, clip the sample to 1.0 to limit the range. */
if ((_factor != defaultNormalizationFactor) && (fabsf(buf) > 1.0f))
{
buf = (buf < 0) ? -1.0f : 1.0f;
}
sample_shape[i] = buf;
}
}
bSynth::~bSynth()
{
delete[] sample_shape;
}
sample_t bSynth::nextStringSample( float sample_length )
{
float sample_step =
static_cast<float>( sample_length / ( sample_rate / nph->frequency() ) );
// check overflow
while (sample_realindex >= sample_length) {
sample_realindex -= sample_length;
}
sample_t sample;
if (interpolation) {
// find position in shape
int a = static_cast<int>(sample_realindex);
int b;
if (a < (sample_length-1)) {
b = static_cast<int>(sample_realindex+1);
} else {
b = 0;
}
// Nachkommaanteil
const float frac = fraction( sample_realindex );
sample = linearInterpolate( sample_shape[a], sample_shape[b], frac );
} else {
// No interpolation
sample_index = static_cast<int>(sample_realindex);
sample = sample_shape[sample_index];
}
// progress in shape
sample_realindex += sample_step;
return sample;
}
/***********************************************************************
*
* class BitInvader
*
* lmms - plugin
*
***********************************************************************/
bitInvader::bitInvader( InstrumentTrack * _instrument_track ) :
Instrument( _instrument_track, &bitinvader_plugin_descriptor ),
m_sampleLength(wavetableSize, 4, wavetableSize, 1, this, tr("Sample length")),
m_graph(-1.0f, 1.0f, wavetableSize, this),
m_interpolation( false, this ),
m_normalize( false, this )
{
m_graph.setWaveToSine();
lengthChanged();
connect( &m_sampleLength, SIGNAL( dataChanged( ) ),
this, SLOT( lengthChanged( ) ), Qt::DirectConnection );
connect( &m_graph, SIGNAL( samplesChanged( int, int ) ),
this, SLOT( samplesChanged( int, int ) ) );
}
bitInvader::~bitInvader()
{
}
void bitInvader::saveSettings( QDomDocument & _doc, QDomElement & _this )
{
// Save plugin version
_this.setAttribute( "version", "0.1" );
// Save sample length
m_sampleLength.saveSettings( _doc, _this, "sampleLength" );
// Save sample shape base64-encoded
QString sampleString;
base64::encode((const char *)m_graph.samples(),
wavetableSize * sizeof(float), sampleString);
_this.setAttribute( "sampleShape", sampleString );
// save LED normalize
m_interpolation.saveSettings( _doc, _this, "interpolation" );
// save LED
m_normalize.saveSettings( _doc, _this, "normalize" );
}
void bitInvader::loadSettings( const QDomElement & _this )
{
// Clear wavetable before loading a new
m_graph.clear();
// Load sample length
m_sampleLength.loadSettings( _this, "sampleLength" );
int sampleLength = (int)m_sampleLength.value();
// Load sample shape
int size = 0;
char * dst = 0;
base64::decode( _this.attribute( "sampleShape"), &dst, &size );
m_graph.setLength(size / sizeof(float));
m_graph.setSamples(reinterpret_cast<float*>(dst));
m_graph.setLength(sampleLength);
delete[] dst;
// Load LED normalize
m_interpolation.loadSettings( _this, "interpolation" );
// Load LED
m_normalize.loadSettings( _this, "normalize" );
}
void bitInvader::lengthChanged()
{
m_graph.setLength( (int) m_sampleLength.value() );
normalize();
}
void bitInvader::samplesChanged( int _begin, int _end )
{
normalize();
//engine::getSongEditor()->setModified();
}
void bitInvader::normalize()
{
// analyze
float max = std::numeric_limits<float>::epsilon();
const float* samples = m_graph.samples();
for(int i=0; i < m_graph.length(); i++)
{
const float f = fabsf( samples[i] );
if (f > max) { max = f; }
}
m_normalizeFactor = 1.0 / max;
}
QString bitInvader::nodeName() const
{
return( bitinvader_plugin_descriptor.name );
}
void bitInvader::playNote( NotePlayHandle * _n,
sampleFrame * _working_buffer )
{
if ( _n->totalFramesPlayed() == 0 || _n->m_pluginData == nullptr )
{
float factor;
if( !m_normalize.value() )
{
factor = defaultNormalizationFactor;
}
else
{
factor = m_normalizeFactor;
}
_n->m_pluginData = new bSynth(
const_cast<float*>( m_graph.samples() ),
_n,
m_interpolation.value(), factor,
Engine::audioEngine()->processingSampleRate() );
}
const fpp_t frames = _n->framesLeftForCurrentPeriod();
const f_cnt_t offset = _n->noteOffset();
bSynth * ps = static_cast<bSynth *>( _n->m_pluginData );
for( fpp_t frame = offset; frame < frames + offset; ++frame )
{
const sample_t cur = ps->nextStringSample( m_graph.length() );
for( ch_cnt_t chnl = 0; chnl < DEFAULT_CHANNELS; ++chnl )
{
_working_buffer[frame][chnl] = cur;
}
}
applyRelease( _working_buffer, _n );
instrumentTrack()->processAudioBuffer( _working_buffer, frames + offset, _n );
}
void bitInvader::deleteNotePluginData( NotePlayHandle * _n )
{
delete static_cast<bSynth *>( _n->m_pluginData );
}
PluginView * bitInvader::instantiateView( QWidget * _parent )
{
return( new bitInvaderView( this, _parent ) );
}
bitInvaderView::bitInvaderView( Instrument * _instrument,
QWidget * _parent ) :
InstrumentViewFixedSize( _instrument, _parent )
{
setAutoFillBackground( true );
QPalette pal;
pal.setBrush( backgroundRole(), PLUGIN_NAME::getIconPixmap(
"artwork" ) );
setPalette( pal );
m_sampleLengthKnob = new Knob( knobDark_28, this );
m_sampleLengthKnob->move( 6, 201 );
m_sampleLengthKnob->setHintText( tr( "Sample length" ), "" );
m_graph = new Graph( this, Graph::NearestStyle, 204, 134 );
m_graph->move(23,59); // 55,120 - 2px border
m_graph->setAutoFillBackground( true );
m_graph->setGraphColor( QColor( 255, 255, 255 ) );
ToolTip::add( m_graph, tr ( "Draw your own waveform here "
"by dragging your mouse on this graph."
));
pal = QPalette();
pal.setBrush( backgroundRole(),
PLUGIN_NAME::getIconPixmap("wavegraph") );
m_graph->setPalette( pal );
m_sinWaveBtn = new PixmapButton( this, tr( "Sine wave" ) );
m_sinWaveBtn->move( 131, 205 );
m_sinWaveBtn->setActiveGraphic( embed::getIconPixmap(
"sin_wave_active" ) );
m_sinWaveBtn->setInactiveGraphic( embed::getIconPixmap(
"sin_wave_inactive" ) );
ToolTip::add( m_sinWaveBtn,
tr( "Sine wave" ) );
m_triangleWaveBtn = new PixmapButton( this, tr( "Triangle wave" ) );
m_triangleWaveBtn->move( 131 + 14, 205 );
m_triangleWaveBtn->setActiveGraphic(
embed::getIconPixmap( "triangle_wave_active" ) );
m_triangleWaveBtn->setInactiveGraphic(
embed::getIconPixmap( "triangle_wave_inactive" ) );
ToolTip::add( m_triangleWaveBtn,
tr( "Triangle wave" ) );
m_sawWaveBtn = new PixmapButton( this, tr( "Saw wave" ) );
m_sawWaveBtn->move( 131 + 14*2, 205 );
m_sawWaveBtn->setActiveGraphic( embed::getIconPixmap(
"saw_wave_active" ) );
m_sawWaveBtn->setInactiveGraphic( embed::getIconPixmap(
"saw_wave_inactive" ) );
ToolTip::add( m_sawWaveBtn,
tr( "Saw wave" ) );
m_sqrWaveBtn = new PixmapButton( this, tr( "Square wave" ) );
m_sqrWaveBtn->move( 131 + 14*3, 205 );
m_sqrWaveBtn->setActiveGraphic( embed::getIconPixmap(
"square_wave_active" ) );
m_sqrWaveBtn->setInactiveGraphic( embed::getIconPixmap(
"square_wave_inactive" ) );
ToolTip::add( m_sqrWaveBtn,
tr( "Square wave" ) );
m_whiteNoiseWaveBtn = new PixmapButton( this,
tr( "White noise" ) );
m_whiteNoiseWaveBtn->move( 131 + 14*4, 205 );
m_whiteNoiseWaveBtn->setActiveGraphic(
embed::getIconPixmap( "white_noise_wave_active" ) );
m_whiteNoiseWaveBtn->setInactiveGraphic(
embed::getIconPixmap( "white_noise_wave_inactive" ) );
ToolTip::add( m_whiteNoiseWaveBtn,
tr( "White noise" ) );
m_usrWaveBtn = new PixmapButton( this, tr( "User-defined wave" ) );
m_usrWaveBtn->move( 131 + 14*5, 205 );
m_usrWaveBtn->setActiveGraphic( embed::getIconPixmap(
"usr_wave_active" ) );
m_usrWaveBtn->setInactiveGraphic( embed::getIconPixmap(
"usr_wave_inactive" ) );
ToolTip::add( m_usrWaveBtn,
tr( "User-defined wave" ) );
m_smoothBtn = new PixmapButton( this, tr( "Smooth waveform" ) );
m_smoothBtn->move( 131 + 14*6, 205 );
m_smoothBtn->setActiveGraphic( PLUGIN_NAME::getIconPixmap(
"smooth_active" ) );
m_smoothBtn->setInactiveGraphic( PLUGIN_NAME::getIconPixmap(
"smooth_inactive" ) );
ToolTip::add( m_smoothBtn,
tr( "Smooth waveform" ) );
m_interpolationToggle = new LedCheckBox( "Interpolation", this,
tr( "Interpolation" ), LedCheckBox::Yellow );
m_interpolationToggle->move( 131, 221 );
m_normalizeToggle = new LedCheckBox( "Normalize", this,
tr( "Normalize" ), LedCheckBox::Green );
m_normalizeToggle->move( 131, 236 );
connect( m_sinWaveBtn, SIGNAL (clicked () ),
this, SLOT ( sinWaveClicked() ) );
connect( m_triangleWaveBtn, SIGNAL ( clicked () ),
this, SLOT ( triangleWaveClicked() ) );
connect( m_sawWaveBtn, SIGNAL (clicked () ),
this, SLOT ( sawWaveClicked() ) );
connect( m_sqrWaveBtn, SIGNAL ( clicked () ),
this, SLOT ( sqrWaveClicked() ) );
connect( m_whiteNoiseWaveBtn, SIGNAL ( clicked () ),
this, SLOT ( noiseWaveClicked() ) );
connect( m_usrWaveBtn, SIGNAL ( clicked () ),
this, SLOT ( usrWaveClicked() ) );
connect( m_smoothBtn, SIGNAL ( clicked () ),
this, SLOT ( smoothClicked() ) );
connect( m_interpolationToggle, SIGNAL( toggled( bool ) ),
this, SLOT ( interpolationToggled( bool ) ) );
connect( m_normalizeToggle, SIGNAL( toggled( bool ) ),
this, SLOT ( normalizeToggled( bool ) ) );
}
void bitInvaderView::modelChanged()
{
bitInvader * b = castModel<bitInvader>();
m_graph->setModel( &b->m_graph );
m_sampleLengthKnob->setModel( &b->m_sampleLength );
m_interpolationToggle->setModel( &b->m_interpolation );
m_normalizeToggle->setModel( &b->m_normalize );
}
void bitInvaderView::sinWaveClicked()
{
m_graph->model()->clearInvisible();
m_graph->model()->setWaveToSine();
Engine::getSong()->setModified();
}
void bitInvaderView::triangleWaveClicked()
{
m_graph->model()->clearInvisible();
m_graph->model()->setWaveToTriangle();
Engine::getSong()->setModified();
}
void bitInvaderView::sawWaveClicked()
{
m_graph->model()->clearInvisible();
m_graph->model()->setWaveToSaw();
Engine::getSong()->setModified();
}
void bitInvaderView::sqrWaveClicked()
{
m_graph->model()->clearInvisible();
m_graph->model()->setWaveToSquare();
Engine::getSong()->setModified();
}
void bitInvaderView::noiseWaveClicked()
{
m_graph->model()->clearInvisible();
m_graph->model()->setWaveToNoise();
Engine::getSong()->setModified();
}
void bitInvaderView::usrWaveClicked()
{
QString fileName = m_graph->model()->setWaveToUser();
if (!fileName.isEmpty())
{
ToolTip::add(m_usrWaveBtn, fileName);
m_graph->model()->clearInvisible();
Engine::getSong()->setModified();
}
}
void bitInvaderView::smoothClicked()
{
m_graph->model()->smooth();
Engine::getSong()->setModified();
}
void bitInvaderView::interpolationToggled( bool value )
{
m_graph->setGraphStyle( value ? Graph::LinearStyle : Graph::NearestStyle);
Engine::getSong()->setModified();
}
void bitInvaderView::normalizeToggled( bool value )
{
Engine::getSong()->setModified();
}
extern "C"
{
// necessary for getting instance out of shared lib
PLUGIN_EXPORT Plugin * lmms_plugin_main( Model *m, void * )
{
return( new bitInvader( static_cast<InstrumentTrack *>( m ) ) );
}
}
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