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Sf2Player.cpp
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/*
* Sf2Player.cpp - a soundfont2 player using fluidSynth
*
* Copyright (c) 2008 Paul Giblock <drfaygo/at/gmail/dot/com>
* Copyright (c) 2009-2014 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 "Sf2Player.h"
#include <fluidsynth.h>
#include <QDebug>
#include <QDomElement>
#include <QLabel>
#include "ArrayVector.h"
#include "AudioEngine.h"
#include "ConfigManager.h"
#include "FileDialog.h"
#include "Engine.h"
#include "InstrumentTrack.h"
#include "InstrumentPlayHandle.h"
#include "Knob.h"
#include "NotePlayHandle.h"
#include "PathUtil.h"
#include "PixmapButton.h"
#include "Song.h"
#include "fluidsynthshims.h"
#include "PatchesDialog.h"
#include "LcdSpinBox.h"
#include "embed.h"
#include "plugin_export.h"
namespace lmms
{
extern "C"
{
Plugin::Descriptor PLUGIN_EXPORT sf2player_plugin_descriptor =
{
LMMS_STRINGIFY( PLUGIN_NAME ),
"Sf2 Player",
QT_TRANSLATE_NOOP( "PluginBrowser", "Player for SoundFont files" ),
"Paul Giblock <drfaygo/at/gmail/dot/com>",
0x0100,
Plugin::Type::Instrument,
new PluginPixmapLoader( "logo" ),
"sf2,sf3",
nullptr,
} ;
}
/**
* A non-owning reference to a single FluidSynth voice. Captures some initial
* properties of the referenced voice to help manage changes to it over time.
*/
class FluidVoice
{
public:
//! Create a reference to the voice currently pointed at by `voice`.
explicit FluidVoice(fluid_voice_t* voice) :
m_voice{voice},
m_id{fluid_voice_get_id(voice)},
m_coarseTune{fluid_voice_gen_get(voice, GEN_COARSETUNE)}
{ }
//! Get a pointer to the referenced voice.
fluid_voice_t* get() const noexcept { return m_voice; }
//! Get the original coarse tuning of the referenced voice.
float coarseTune() const noexcept { return m_coarseTune; }
//! Test whether this object still refers to the original voice.
bool isValid() const
{
return fluid_voice_get_id(m_voice) == m_id && fluid_voice_is_playing(m_voice);
}
private:
fluid_voice_t* m_voice;
unsigned int m_id;
float m_coarseTune;
};
struct Sf2PluginData
{
int midiNote;
int lastPanning;
float lastVelocity;
// The soundfonts I checked used at most two voices per note, so space for
// four should be safe. This may need to be increased if a soundfont with
// more voices per note is found.
ArrayVector<FluidVoice, 4> fluidVoices;
bool isNew;
f_cnt_t offset;
bool noteOffSent;
panning_t panning;
};
Sf2Instrument::Sf2Instrument( InstrumentTrack * _instrument_track ) :
Instrument(_instrument_track, &sf2player_plugin_descriptor, nullptr, Flag::IsSingleStreamed),
m_srcState( nullptr ),
m_synth(nullptr),
m_font( nullptr ),
m_fontId( 0 ),
m_filename( "" ),
m_lastMidiPitch( -1 ),
m_lastMidiPitchRange( -1 ),
m_channel( 1 ),
m_bankNum( 0, 0, 999, this, tr("Bank") ),
m_patchNum( 0, 0, 127, this, tr("Patch") ),
m_gain( 1.0f, 0.0f, 5.0f, 0.01f, this, tr( "Gain" ) ),
m_reverbOn( false, this, tr( "Reverb" ) ),
m_reverbRoomSize( FLUID_REVERB_DEFAULT_ROOMSIZE, 0, 1.0, 0.01f, this, tr( "Reverb room size" ) ),
m_reverbDamping(FLUID_REVERB_DEFAULT_DAMP, 0, 1.f, 0.01f, this, tr("Reverb damping")),
m_reverbWidth( FLUID_REVERB_DEFAULT_WIDTH, 0, 1.0, 0.01f, this, tr( "Reverb width" ) ),
m_reverbLevel( FLUID_REVERB_DEFAULT_LEVEL, 0, 1.0, 0.01f, this, tr( "Reverb level" ) ),
m_chorusOn( false, this, tr( "Chorus" ) ),
m_chorusNum( FLUID_CHORUS_DEFAULT_N, 0, 10.0, 1.0, this, tr( "Chorus voices" ) ),
m_chorusLevel(FLUID_CHORUS_DEFAULT_LEVEL, 0, 10.f, 0.01f, this, tr("Chorus level")),
m_chorusSpeed(FLUID_CHORUS_DEFAULT_SPEED, 0.29f, 5.f, 0.01f, this, tr("Chorus speed")),
m_chorusDepth(FLUID_CHORUS_DEFAULT_DEPTH, 0, 46.f, 0.05f, this, tr("Chorus depth"))
{
#if QT_VERSION_CHECK(FLUIDSYNTH_VERSION_MAJOR, FLUIDSYNTH_VERSION_MINOR, FLUIDSYNTH_VERSION_MICRO) >= QT_VERSION_CHECK(1,1,9)
// Deactivate all audio drivers in fluidsynth
const char *none[] = { nullptr };
fluid_audio_driver_register( none );
#endif
m_settings = new_fluid_settings();
//fluid_settings_setint( m_settings, (char *) "audio.period-size", engine::audioEngine()->framesPerPeriod() );
// This sets up m_synth and updates reverb/chorus/gain
reloadSynth();
#if FLUIDSYNTH_VERSION_MAJOR >= 2
// Get the default values from the setting
double settingVal;
fluid_settings_getnum_default(m_settings, "synth.reverb.room-size", &settingVal);
m_reverbRoomSize.setInitValue(settingVal);
fluid_settings_getnum_default(m_settings, "synth.reverb.damping", &settingVal);
m_reverbDamping.setInitValue(settingVal);
fluid_settings_getnum_default(m_settings, "synth.reverb.width", &settingVal);
m_reverbWidth.setInitValue(settingVal);
fluid_settings_getnum_default(m_settings, "synth.reverb.level", &settingVal);
m_reverbLevel.setInitValue(settingVal);
fluid_settings_getnum_default(m_settings, "synth.chorus.nr", &settingVal);
m_chorusNum.setInitValue(settingVal);
fluid_settings_getnum_default(m_settings, "synth.chorus.level", &settingVal);
m_chorusLevel.setInitValue(settingVal);
fluid_settings_getnum_default(m_settings, "synth.chorus.speed", &settingVal);
m_chorusSpeed.setInitValue(settingVal);
fluid_settings_getnum_default(m_settings, "synth.chorus.depth", &settingVal);
m_chorusDepth.setInitValue(settingVal);
#endif
// FIXME: there's no good way to tell if we're loading a preset or an empty instrument
// We rely on instantiate() to load the default soundfont for new instruments,
// but we don't need that when loading a project/preset/preview
if (!Engine::getSong()->isLoadingProject() && !instrumentTrack()->isPreviewMode())
{
loadFile(ConfigManager::inst()->sf2File());
}
connect( &m_bankNum, SIGNAL( dataChanged() ), this, SLOT( updatePatch() ) );
connect( &m_patchNum, SIGNAL( dataChanged() ), this, SLOT( updatePatch() ) );
connect(Engine::audioEngine(), SIGNAL(sampleRateChanged()), this, SLOT(reloadSynth()));
// Gain
connect( &m_gain, SIGNAL( dataChanged() ), this, SLOT( updateGain() ) );
// Reverb
connect( &m_reverbOn, SIGNAL( dataChanged() ), this, SLOT( updateReverbOn() ) );
connect( &m_reverbRoomSize, SIGNAL( dataChanged() ), this, SLOT( updateReverb() ) );
connect( &m_reverbDamping, SIGNAL( dataChanged() ), this, SLOT( updateReverb() ) );
connect( &m_reverbWidth, SIGNAL( dataChanged() ), this, SLOT( updateReverb() ) );
connect( &m_reverbLevel, SIGNAL( dataChanged() ), this, SLOT( updateReverb() ) );
// Chorus
connect( &m_chorusOn, SIGNAL( dataChanged() ), this, SLOT( updateChorusOn() ) );
connect( &m_chorusNum, SIGNAL( dataChanged() ), this, SLOT( updateChorus() ) );
connect( &m_chorusLevel, SIGNAL( dataChanged() ), this, SLOT( updateChorus() ) );
connect( &m_chorusSpeed, SIGNAL( dataChanged() ), this, SLOT( updateChorus() ) );
connect( &m_chorusDepth, SIGNAL( dataChanged() ), this, SLOT( updateChorus() ) );
// Microtuning
connect(Engine::getSong(), &Song::scaleListChanged, this, &Sf2Instrument::updateTuning);
connect(Engine::getSong(), &Song::keymapListChanged, this, &Sf2Instrument::updateTuning);
connect(instrumentTrack()->microtuner()->enabledModel(), &Model::dataChanged, this, &Sf2Instrument::updateTuning, Qt::DirectConnection);
connect(instrumentTrack()->microtuner()->scaleModel(), &Model::dataChanged, this, &Sf2Instrument::updateTuning, Qt::DirectConnection);
connect(instrumentTrack()->microtuner()->keymapModel(), &Model::dataChanged, this, &Sf2Instrument::updateTuning, Qt::DirectConnection);
connect(instrumentTrack()->microtuner()->keyRangeImportModel(), &Model::dataChanged, this, &Sf2Instrument::updateTuning, Qt::DirectConnection);
connect(instrumentTrack()->baseNoteModel(), &Model::dataChanged, this, &Sf2Instrument::updateTuning, Qt::DirectConnection);
auto iph = new InstrumentPlayHandle(this, _instrument_track);
Engine::audioEngine()->addPlayHandle( iph );
}
Sf2Instrument::~Sf2Instrument()
{
Engine::audioEngine()->removePlayHandlesOfTypes( instrumentTrack(),
PlayHandle::Type::NotePlayHandle
| PlayHandle::Type::InstrumentPlayHandle );
freeFont();
delete_fluid_synth( m_synth );
delete_fluid_settings( m_settings );
if( m_srcState != nullptr )
{
src_delete( m_srcState );
}
}
void Sf2Instrument::saveSettings( QDomDocument & _doc, QDomElement & _this )
{
_this.setAttribute( "src", m_filename );
m_patchNum.saveSettings( _doc, _this, "patch" );
m_bankNum.saveSettings( _doc, _this, "bank" );
m_gain.saveSettings( _doc, _this, "gain" );
m_reverbOn.saveSettings( _doc, _this, "reverbOn" );
m_reverbRoomSize.saveSettings( _doc, _this, "reverbRoomSize" );
m_reverbDamping.saveSettings( _doc, _this, "reverbDamping" );
m_reverbWidth.saveSettings( _doc, _this, "reverbWidth" );
m_reverbLevel.saveSettings( _doc, _this, "reverbLevel" );
m_chorusOn.saveSettings( _doc, _this, "chorusOn" );
m_chorusNum.saveSettings( _doc, _this, "chorusNum" );
m_chorusLevel.saveSettings( _doc, _this, "chorusLevel" );
m_chorusSpeed.saveSettings( _doc, _this, "chorusSpeed" );
m_chorusDepth.saveSettings( _doc, _this, "chorusDepth" );
}
void Sf2Instrument::loadSettings( const QDomElement & _this )
{
openFile( _this.attribute( "src" ), false );
m_patchNum.loadSettings( _this, "patch" );
m_bankNum.loadSettings( _this, "bank" );
m_gain.loadSettings( _this, "gain" );
m_reverbOn.loadSettings( _this, "reverbOn" );
m_reverbRoomSize.loadSettings( _this, "reverbRoomSize" );
m_reverbDamping.loadSettings( _this, "reverbDamping" );
m_reverbWidth.loadSettings( _this, "reverbWidth" );
m_reverbLevel.loadSettings( _this, "reverbLevel" );
m_chorusOn.loadSettings( _this, "chorusOn" );
m_chorusNum.loadSettings( _this, "chorusNum" );
m_chorusLevel.loadSettings( _this, "chorusLevel" );
m_chorusSpeed.loadSettings( _this, "chorusSpeed" );
m_chorusDepth.loadSettings( _this, "chorusDepth" );
}
void Sf2Instrument::loadFile( const QString & _file )
{
if( !_file.isEmpty() && QFileInfo( _file ).exists() )
{
openFile( _file, false );
}
// setting the first bank and patch number that is found
auto sSoundCount = ::fluid_synth_sfcount( m_synth );
for ( int i = 0; i < sSoundCount; ++i ) {
int iBank = 0;
int iProg = 0;
fluid_sfont_t *pSoundFont = ::fluid_synth_get_sfont( m_synth, i );
if ( pSoundFont ) {
#ifdef CONFIG_FLUID_BANK_OFFSET
int iBankOff = ::fluid_synth_get_bank_offset( m_synth, fluid_sfont_get_id( pSoundFont ) );
#endif
fluid_sfont_iteration_start( pSoundFont );
#if FLUIDSYNTH_VERSION_MAJOR < 2
fluid_preset_t preset;
fluid_preset_t *pCurPreset = &preset;
#else
fluid_preset_t *pCurPreset = nullptr;
#endif
if ( ( pCurPreset = fluid_sfont_iteration_next_wrapper( pSoundFont, pCurPreset ) ) ) {
iBank = fluid_preset_get_banknum( pCurPreset );
iProg = fluid_preset_get_num( pCurPreset );
#ifdef CONFIG_FLUID_BANK_OFFSET
iBank += iBankOff;
#endif
::fluid_synth_bank_select( m_synth, 1, iBank );
::fluid_synth_program_change( m_synth, 1, iProg );
m_bankNum.setValue( iBank );
m_patchNum.setValue ( iProg );
break;
}
}
}
}
AutomatableModel * Sf2Instrument::childModel( const QString & _modelName )
{
if( _modelName == "bank" )
{
return &m_bankNum;
}
else if( _modelName == "patch" )
{
return &m_patchNum;
}
qCritical() << "requested unknown model " << _modelName;
return nullptr;
}
QString Sf2Instrument::nodeName() const
{
return sf2player_plugin_descriptor.name;
}
void Sf2Instrument::freeFont()
{
m_synthMutex.lock();
if (m_font != nullptr)
{
fluid_synth_sfunload(m_synth, m_fontId, true);
m_font = nullptr;
}
m_synthMutex.unlock();
}
void Sf2Instrument::openFile( const QString & _sf2File, bool updateTrackName )
{
emit fileLoading();
// Used for loading file
char * sf2Ascii = qstrdup( qPrintable( PathUtil::toAbsolute( _sf2File ) ) );
QString relativePath = PathUtil::toShortestRelative( _sf2File );
// free the soundfont if one is selected
freeFont();
m_synthMutex.lock();
bool loaded = false;
if (fluid_is_soundfont(sf2Ascii))
{
m_fontId = fluid_synth_sfload(m_synth, sf2Ascii, true);
if (fluid_synth_sfcount(m_synth) > 0)
{
// Grab this sf from the top of the stack and add to list
m_font = fluid_synth_get_sfont(m_synth, 0);
loaded = true;
}
}
if (!loaded)
{
collectErrorForUI(Sf2Instrument::tr("A soundfont %1 could not be loaded.").arg(QFileInfo(_sf2File).baseName()));
}
m_synthMutex.unlock();
if( m_fontId >= 0 )
{
// Don't reset patch/bank, so that it isn't cleared when
// someone resolves a missing file
//m_patchNum.setValue( 0 );
//m_bankNum.setValue( 0 );
m_filename = relativePath;
emit fileChanged();
}
delete[] sf2Ascii;
if( updateTrackName || instrumentTrack()->displayName() == displayName() )
{
instrumentTrack()->setName( PathUtil::cleanName( _sf2File ) );
}
updatePatch();
}
void Sf2Instrument::updatePatch()
{
if( m_bankNum.value() >= 0 && m_patchNum.value() >= 0 )
{
fluid_synth_program_select( m_synth, m_channel, m_fontId,
m_bankNum.value(), m_patchNum.value() );
}
}
QString Sf2Instrument::getCurrentPatchName()
{
int iBankSelected = m_bankNum.value();
int iProgSelected = m_patchNum.value();
// For all soundfonts (in reversed stack order) fill the available programs...
int cSoundFonts = ::fluid_synth_sfcount( m_synth );
for( int i = 0; i < cSoundFonts; i++ )
{
fluid_sfont_t *pSoundFont = fluid_synth_get_sfont( m_synth, i );
if ( pSoundFont )
{
#ifdef CONFIG_FLUID_BANK_OFFSET
int iBankOffset =
fluid_synth_get_bank_offset(
m_synth, fluid_sfont_get_id(pSoundFont) );
#endif
fluid_sfont_iteration_start( pSoundFont );
#if FLUIDSYNTH_VERSION_MAJOR < 2
fluid_preset_t preset;
fluid_preset_t *pCurPreset = &preset;
#else
fluid_preset_t *pCurPreset = nullptr;
#endif
while ((pCurPreset = fluid_sfont_iteration_next_wrapper(pSoundFont, pCurPreset)))
{
int iBank = fluid_preset_get_banknum( pCurPreset );
#ifdef CONFIG_FLUID_BANK_OFFSET
iBank += iBankOffset;
#endif
int iProg = fluid_preset_get_num( pCurPreset );
if( iBank == iBankSelected && iProg ==
iProgSelected )
{
return fluid_preset_get_name( pCurPreset );
}
}
}
}
return "";
}
void Sf2Instrument::updateGain()
{
fluid_synth_set_gain( m_synth, m_gain.value() );
}
#define FLUIDSYNTH_VERSION_HEX ((FLUIDSYNTH_VERSION_MAJOR << 16) \
| (FLUIDSYNTH_VERSION_MINOR << 8) \
| FLUIDSYNTH_VERSION_MICRO)
#define USE_NEW_EFFECT_API (FLUIDSYNTH_VERSION_HEX >= 0x020200)
void Sf2Instrument::updateReverbOn()
{
#if USE_NEW_EFFECT_API
fluid_synth_reverb_on(m_synth, -1, m_reverbOn.value() ? 1 : 0);
#else
fluid_synth_set_reverb_on(m_synth, m_reverbOn.value() ? 1 : 0);
#endif
}
void Sf2Instrument::updateReverb()
{
#if USE_NEW_EFFECT_API
fluid_synth_set_reverb_group_roomsize(m_synth, -1, m_reverbRoomSize.value());
fluid_synth_set_reverb_group_damp(m_synth, -1, m_reverbDamping.value());
fluid_synth_set_reverb_group_width(m_synth, -1, m_reverbWidth.value());
fluid_synth_set_reverb_group_level(m_synth, -1, m_reverbLevel.value());
#else
fluid_synth_set_reverb(m_synth, m_reverbRoomSize.value(),
m_reverbDamping.value(), m_reverbWidth.value(),
m_reverbLevel.value());
#endif
}
void Sf2Instrument::updateChorusOn()
{
#if USE_NEW_EFFECT_API
fluid_synth_chorus_on(m_synth, -1, m_chorusOn.value() ? 1 : 0);
#else
fluid_synth_set_chorus_on(m_synth, m_chorusOn.value() ? 1 : 0);
#endif
}
void Sf2Instrument::updateChorus()
{
#if USE_NEW_EFFECT_API
fluid_synth_set_chorus_group_nr(m_synth, -1, static_cast<int>(m_chorusNum.value()));
fluid_synth_set_chorus_group_level(m_synth, -1, m_chorusLevel.value());
fluid_synth_set_chorus_group_speed(m_synth, -1, m_chorusSpeed.value());
fluid_synth_set_chorus_group_depth(m_synth, -1, m_chorusDepth.value());
fluid_synth_set_chorus_group_type(m_synth, -1, FLUID_CHORUS_MOD_SINE);
#else
fluid_synth_set_chorus(m_synth, static_cast<int>(m_chorusNum.value()),
m_chorusLevel.value(), m_chorusSpeed.value(),
m_chorusDepth.value(), FLUID_CHORUS_MOD_SINE);
#endif
}
void Sf2Instrument::updateTuning()
{
if (instrumentTrack()->microtuner()->enabledModel()->value())
{
auto centArray = std::array<double, 128>{};
double lowestHz = pow(2., -69. / 12.) * 440.;// Frequency of MIDI note 0, which is approximately 8.175798916 Hz
for (int i = 0; i < 128; ++i)
{
// Get desired Hz of note
double noteHz = instrumentTrack()->microtuner()->keyToFreq(i, DefaultBaseKey);
// Convert Hz to cents
centArray[i] = noteHz == 0. ? 0. : 1200. * log2(noteHz / lowestHz);
}
fluid_synth_activate_key_tuning(m_synth, 0, 0, "", centArray.data(), true);
for (int chan = 0; chan < 16; chan++)
{
fluid_synth_activate_tuning(m_synth, chan, 0, 0, true);
}
}
else
{
fluid_synth_activate_key_tuning(m_synth, 0, 0, "", nullptr, true);
for (int chan = 0; chan < 16; chan++)
{
fluid_synth_activate_tuning(m_synth, chan, 0, 0, true);
}
}
}
void Sf2Instrument::reloadSynth()
{
double tempRate;
// Set & get, returns the true sample rate
fluid_settings_setnum( m_settings, (char *) "synth.sample-rate", Engine::audioEngine()->outputSampleRate() );
fluid_settings_getnum( m_settings, (char *) "synth.sample-rate", &tempRate );
m_internalSampleRate = static_cast<int>( tempRate );
if( m_font )
{
// Now, delete the old one and replace
m_synthMutex.lock();
fluid_synth_remove_sfont( m_synth, m_font );
delete_fluid_synth( m_synth );
// New synth
m_synth = new_fluid_synth( m_settings );
m_fontId = fluid_synth_add_sfont( m_synth, m_font );
m_synthMutex.unlock();
// synth program change (set bank and patch)
updatePatch();
}
else
{
// Recreate synth with no soundfonts
m_synthMutex.lock();
if (m_synth != nullptr)
{
delete_fluid_synth(m_synth);
}
m_synth = new_fluid_synth( m_settings );
m_synthMutex.unlock();
}
m_synthMutex.lock();
if( Engine::audioEngine()->currentQualitySettings().interpolation >=
AudioEngine::qualitySettings::Interpolation::SincFastest )
{
fluid_synth_set_interp_method( m_synth, -1, FLUID_INTERP_7THORDER );
}
else
{
fluid_synth_set_interp_method( m_synth, -1, FLUID_INTERP_DEFAULT );
}
m_synthMutex.unlock();
if( m_internalSampleRate < Engine::audioEngine()->outputSampleRate() )
{
m_synthMutex.lock();
if( m_srcState != nullptr )
{
src_delete( m_srcState );
}
int error;
m_srcState = src_new( Engine::audioEngine()->currentQualitySettings().libsrcInterpolation(), DEFAULT_CHANNELS, &error );
if( m_srcState == nullptr || error )
{
qCritical("error while creating libsamplerate data structure in Sf2Instrument::reloadSynth()");
}
m_synthMutex.unlock();
}
updateReverb();
updateChorus();
updateReverbOn();
updateChorusOn();
updateGain();
updateTuning();
// Reset last MIDI pitch properties, which will be set to the correct values
// upon playing the next note
m_lastMidiPitch = -1;
m_lastMidiPitchRange = -1;
}
void Sf2Instrument::playNote( NotePlayHandle * _n, SampleFrame* )
{
if( _n->isMasterNote() || ( _n->hasParent() && _n->isReleased() ) )
{
return;
}
int masterPitch = instrumentTrack()->useMasterPitchModel()->value() ? Engine::getSong()->masterPitch() : 0;
int baseNote = instrumentTrack()->baseNoteModel()->value();
int midiNote = _n->midiKey() - baseNote + DefaultBaseKey + masterPitch;
// out of range?
if (midiNote < 0 || midiNote >= 128)
{
return;
}
if (!_n->m_pluginData)
{
const int baseVelocity = instrumentTrack()->midiPort()->baseVelocity();
auto pluginData = new Sf2PluginData;
pluginData->midiNote = midiNote;
pluginData->lastPanning = 0;
pluginData->lastVelocity = _n->midiVelocity( baseVelocity );
pluginData->isNew = true;
pluginData->offset = _n->offset();
pluginData->noteOffSent = false;
pluginData->panning = _n->getPanning();
_n->m_pluginData = pluginData;
// insert the nph to the playing notes vector
m_playingNotesMutex.lock();
m_playingNotes.append( _n );
m_playingNotesMutex.unlock();
}
else if( _n->isReleased() && ! _n->instrumentTrack()->isSustainPedalPressed() ) // note is released during this period
{
auto pluginData = static_cast<Sf2PluginData*>(_n->m_pluginData);
pluginData->offset = _n->framesBeforeRelease();
pluginData->isNew = false;
m_playingNotesMutex.lock();
m_playingNotes.append( _n );
m_playingNotesMutex.unlock();
}
// Update the pitch of all the voices
if (const auto data = static_cast<Sf2PluginData*>(_n->m_pluginData)) {
const auto detuning = _n->currentDetuning();
for (const auto& voice : data->fluidVoices) {
if (voice.isValid()) {
fluid_voice_gen_set(voice.get(), GEN_COARSETUNE, voice.coarseTune() + detuning);
fluid_voice_update_param(voice.get(), GEN_COARSETUNE);
}
}
}
}
void Sf2Instrument::noteOn( Sf2PluginData * n )
{
m_synthMutex.lock();
// get list of current voice IDs so we can easily spot the new
// voice after the fluid_synth_noteon() call
const int poly = fluid_synth_get_polyphony( m_synth );
#ifndef _MSC_VER
fluid_voice_t* voices[poly];
#else
const auto voices = static_cast<fluid_voice_t**>(_alloca(poly * sizeof(fluid_voice_t*)));
#endif
fluid_synth_noteon( m_synth, m_channel, n->midiNote, n->lastVelocity );
// Get any new voices and store them in the plugin data
fluid_synth_get_voicelist(m_synth, voices, poly, -1);
for (int i = 0; i < poly && voices[i] && !n->fluidVoices.full(); ++i)
{
const auto voice = voices[i];
// FluidSynth stops voices with the same channel and pitch upon note-on,
// so voices with the current channel and pitch are playing this note.
if (fluid_voice_get_channel(voice) == m_channel
&& fluid_voice_get_key(voice) == n->midiNote
&& fluid_voice_is_on(voice)
) {
n->fluidVoices.emplace_back(voices[i]);
}
}
#if FLUIDSYNTH_VERSION_MAJOR >= 2
// Smallest balance value that results in full attenuation of one channel.
// Corresponds to internal FluidSynth macro `FLUID_CB_AMP_SIZE`.
constexpr static auto maxBalance = 1441.f;
// Convert panning from linear to exponential for FluidSynth
const auto panning = n->panning;
const auto factor = 1.f - std::abs(panning) / static_cast<float>(PanningRight);
const auto balance = std::copysign(
factor <= 0 ? maxBalance : std::min(-200.f * std::log10(factor), maxBalance),
panning
);
// Set note panning on all the voices
for (const auto& voice : n->fluidVoices) {
if (voice.isValid()) {
fluid_voice_gen_set(voice.get(), GEN_CUSTOM_BALANCE, balance);
fluid_voice_update_param(voice.get(), GEN_CUSTOM_BALANCE);
}
}
#endif
m_synthMutex.unlock();
m_notesRunningMutex.lock();
++m_notesRunning[ n->midiNote ];
m_notesRunningMutex.unlock();
}
void Sf2Instrument::noteOff( Sf2PluginData * n )
{
n->noteOffSent = true;
m_notesRunningMutex.lock();
const int notes = --m_notesRunning[n->midiNote];
m_notesRunningMutex.unlock();
if( notes <= 0 )
{
m_synthMutex.lock();
fluid_synth_noteoff( m_synth, m_channel, n->midiNote );
m_synthMutex.unlock();
}
}
void Sf2Instrument::play( SampleFrame* _working_buffer )
{
const fpp_t frames = Engine::audioEngine()->framesPerPeriod();
// set midi pitch for this period
const int currentMidiPitch = instrumentTrack()->midiPitch();
if( m_lastMidiPitch != currentMidiPitch )
{
m_lastMidiPitch = currentMidiPitch;
m_synthMutex.lock();
fluid_synth_pitch_bend( m_synth, m_channel, m_lastMidiPitch );
m_synthMutex.unlock();
}
const int currentMidiPitchRange = instrumentTrack()->midiPitchRange();
if( m_lastMidiPitchRange != currentMidiPitchRange )
{
m_lastMidiPitchRange = currentMidiPitchRange;
m_synthMutex.lock();
fluid_synth_pitch_wheel_sens( m_synth, m_channel, m_lastMidiPitchRange );
m_synthMutex.unlock();
}
// if we have no new noteons/noteoffs, just render a period and call it a day
if( m_playingNotes.isEmpty() )
{
renderFrames( frames, _working_buffer );
return;
}
// processing loop
// go through noteplayhandles in processing order
f_cnt_t currentFrame = 0;
while( ! m_playingNotes.isEmpty() )
{
// find the note with lowest offset
NotePlayHandle * currentNote = m_playingNotes[0];
for( int i = 1; i < m_playingNotes.size(); ++i )
{
auto currentData = static_cast<Sf2PluginData*>(currentNote->m_pluginData);
auto iData = static_cast<Sf2PluginData*>(m_playingNotes[i]->m_pluginData);
if( currentData->offset > iData->offset )
{
currentNote = m_playingNotes[i];
}
}
// process the current note:
// first see if we're synced in frame count
auto currentData = static_cast<Sf2PluginData*>(currentNote->m_pluginData);
if( currentData->offset > currentFrame )
{
renderFrames( currentData->offset - currentFrame, _working_buffer + currentFrame );
currentFrame = currentData->offset;
}
if( currentData->isNew )
{
noteOn( currentData );
if( currentNote->isReleased() ) // if the note is released during the same period, we have to process it again for noteoff
{
currentData->isNew = false;
currentData->offset = currentNote->framesBeforeRelease();
}
else // otherwise remove the handle
{
m_playingNotesMutex.lock();
m_playingNotes.remove( m_playingNotes.indexOf( currentNote ) );
m_playingNotesMutex.unlock();
}
}
else
{
noteOff( currentData );
m_playingNotesMutex.lock();
m_playingNotes.remove( m_playingNotes.indexOf( currentNote ) );
m_playingNotesMutex.unlock();
}
}
if( currentFrame < frames )
{
renderFrames( frames - currentFrame, _working_buffer + currentFrame );
}
}
void Sf2Instrument::renderFrames( f_cnt_t frames, SampleFrame* buf )
{
m_synthMutex.lock();
fluid_synth_get_gain(m_synth); // This flushes voice updates as a side effect
if( m_internalSampleRate < Engine::audioEngine()->outputSampleRate() &&
m_srcState != nullptr )
{
const fpp_t f = frames * m_internalSampleRate / Engine::audioEngine()->outputSampleRate();
#ifdef __GNUC__
SampleFrame tmp[f];
#else
SampleFrame* tmp = new SampleFrame[f];
#endif
fluid_synth_write_float( m_synth, f, tmp, 0, 2, tmp, 1, 2 );
SRC_DATA src_data;
src_data.data_in = (float *)tmp;
src_data.data_out = (float *)buf;
src_data.input_frames = f;
src_data.output_frames = frames;
src_data.src_ratio = (double) frames / f;
src_data.end_of_input = 0;
int error = src_process( m_srcState, &src_data );
#ifndef __GNUC__
delete[] tmp;
#endif
if( error )
{
qCritical( "Sf2Instrument: error while resampling: %s", src_strerror( error ) );
}
if (static_cast<f_cnt_t>(src_data.output_frames_gen) < frames)
{
qCritical("Sf2Instrument: not enough frames: %ld / %zu", src_data.output_frames_gen, frames);
}
}
else
{
fluid_synth_write_float( m_synth, frames, buf, 0, 2, buf, 1, 2 );
}
m_synthMutex.unlock();
}
void Sf2Instrument::deleteNotePluginData( NotePlayHandle * _n )
{
auto pluginData = static_cast<Sf2PluginData*>(_n->m_pluginData);
if( ! pluginData->noteOffSent ) // if we for some reason haven't noteoffed the note before it gets deleted,
// do it here
{
noteOff( pluginData );
m_playingNotesMutex.lock();
if( m_playingNotes.indexOf( _n ) >= 0 )
{
m_playingNotes.remove( m_playingNotes.indexOf( _n ) );
}
m_playingNotesMutex.unlock();
}
delete pluginData;
}
gui::PluginView * Sf2Instrument::instantiateView( QWidget * _parent )
{
return new gui::Sf2InstrumentView( this, _parent );
}
namespace gui
{
class Sf2Knob : public Knob
{
public:
Sf2Knob( QWidget * _parent ) :
Knob( KnobType::Styled, _parent )
{
setFixedSize( 31, 38 );
}
};
Sf2InstrumentView::Sf2InstrumentView( Instrument * _instrument, QWidget * _parent ) :
InstrumentViewFixedSize( _instrument, _parent )
{
// QVBoxLayout * vl = new QVBoxLayout( this );
// QHBoxLayout * hl = new QHBoxLayout();
auto k = castModel<Sf2Instrument>();
connect(&k->m_bankNum, SIGNAL(dataChanged()), this, SLOT(updatePatchName()));
connect(&k->m_patchNum, SIGNAL(dataChanged()), this, SLOT(updatePatchName()));
// File Button
m_fileDialogButton = new PixmapButton(this);
m_fileDialogButton->setCursor(QCursor(Qt::PointingHandCursor));
m_fileDialogButton->setActiveGraphic(PLUGIN_NAME::getIconPixmap("fileselect_on"));
m_fileDialogButton->setInactiveGraphic(PLUGIN_NAME::getIconPixmap("fileselect_off"));
m_fileDialogButton->move(217, 107);
connect(m_fileDialogButton, SIGNAL(clicked()), this, SLOT(showFileDialog()));
m_fileDialogButton->setToolTip(tr("Open SoundFont file"));
// Patch Button
m_patchDialogButton = new PixmapButton(this);
m_patchDialogButton->setCursor(QCursor(Qt::PointingHandCursor));
m_patchDialogButton->setActiveGraphic(PLUGIN_NAME::getIconPixmap("patches_on"));
m_patchDialogButton->setInactiveGraphic(PLUGIN_NAME::getIconPixmap("patches_off"));