597 lines
23 KiB
C++
597 lines
23 KiB
C++
//
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// Created by Alex Birch on 10/09/2017.
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//
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#include <iostream>
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#include <fluidsynth.h>
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#include "FluidSynthModel.h"
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#include "MidiConstants.h"
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#include "Util.h"
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using namespace std;
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FluidSynthModel::FluidSynthModel(
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AudioProcessorValueTreeState& valueTreeState
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// ValueTree& valueTree
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// SharesParams& sharedParams
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)
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: valueTreeState{valueTreeState}
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// , valueTree{valueTree}
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// , sharedParams{sharedParams}
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//, synth{nullptr}
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, settings{nullptr, nullptr}
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, currentSoundFontAbsPath{}
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, currentSampleRate{44100}
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, initialised{false}
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, sfont_id{0}
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, channel{0}/*,
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mod(nullptr)*/
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{
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valueTreeState.addParameterListener("bank", this);
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valueTreeState.addParameterListener("preset", this);
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valueTreeState.state.addListener(this);
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}
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FluidSynthModel::~FluidSynthModel() {
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valueTreeState.removeParameterListener("bank", this);
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valueTreeState.removeParameterListener("preset", this);
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valueTreeState.state.removeListener(this);
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// if (initialised) {
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// delete_fluid_audio_driver(driver);
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// delete_fluid_synth(synth);
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// delete_fluid_settings(settings);
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// delete driver;
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// delete settings;
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// delete_fluid_mod(mod);
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// }
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}
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int FluidSynthModel::handleMidiEvent(void* data, fluid_midi_event_t* event)
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{
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// DEBUG_PRINT(fluid_midi_event_get_type(event));
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// printf("event type: %d\n", fluid_midi_event_get_type(event));
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return 0;
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}
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void FluidSynthModel::initialise() {
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// if (initialised) {
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// delete_fluid_synth(synth);
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// delete_fluid_settings(settings);
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// }
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settings = { new_fluid_settings(), delete_fluid_settings };
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// deactivate all audio drivers in fluidsynth to avoid FL Studio deadlock when initialising CoreAudio
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// after all: we only use fluidsynth to render blocks of audio. it doesn't output to audio driver.
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const char *DRV[] {NULL};
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fluid_audio_driver_register(DRV);
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// handle_midi_event_func_t handler = [](void* data, fluid_midi_event_t* event) -> int {
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//
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// };
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// midiDriver = unique_ptr<fluid_midi_driver_t, decltype(&delete_fluid_midi_driver)>(
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// new_fluid_midi_driver(
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// settings.get(),
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// [](void* data, fluid_midi_event_t* event) -> int {
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//
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// },
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// nullptr),
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// delete_fluid_midi_driver);
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// https://sourceforge.net/p/fluidsynth/wiki/FluidSettings/
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#if JUCE_DEBUG
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fluid_settings_setint(settings.get(), "synth.verbose", 1);
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#endif
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synth = { new_fluid_synth(settings.get()), delete_fluid_synth };
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fluid_synth_set_sample_rate(synth.get(), currentSampleRate);
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// valueTreeState.getParameter("soundFontPath")->getValue();
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// RangedAudioParameter *param {valueTreeState.getParameter("release")};
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// jassert(dynamic_cast<AudioParameterInt*> (param) != nullptr);
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// AudioParameterInt* castParam {dynamic_cast<AudioParameterInt*> (param)};
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// *castParam = m.getControllerValue();
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// if (sharedParams.getSoundFontPath().isNotEmpty()) {
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// loadFont(sharedParams.getSoundFontPath());
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// changePreset(sharedParams->getBank(), sharedParams->getPreset());
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// }
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fluid_synth_set_gain(synth.get(), 2.0);
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for(int i{SOUND_CTRL1}; i <= SOUND_CTRL10; i++)
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{
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setControllerValue(i, 0);
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}
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// fluid_synth_bank_select(synth, 0, 3);
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// fluid_handle_inst
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// driver = new_fluid_audio_driver(settings, synth);
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// changePreset(128, 13);
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// float env_amount(12000.0f);
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// http://www.synthfont.com/SoundFont_NRPNs.PDF
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float env_amount(20000.0f);
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// float env_amount(24000.0f);
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// note: fluid_chan.c#fluid_channel_init_ctrl()
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// all SOUND_CTRL are inited with value of 64, not zero.
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// "Just like panning, a value of 64 indicates no change for sound ctrls"
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unique_ptr<fluid_mod_t, decltype(&delete_fluid_mod)> mod{new_fluid_mod(), delete_fluid_mod};
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//
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fluid_mod_set_source1(mod.get(),
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static_cast<int>(SOUND_CTRL2), // MIDI CC 71 Timbre/Harmonic Intensity (filter resonance)
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FLUID_MOD_CC
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| FLUID_MOD_UNIPOLAR
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| FLUID_MOD_CONCAVE
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| FLUID_MOD_POSITIVE);
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fluid_mod_set_source2(mod.get(), 0, 0);
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fluid_mod_set_dest(mod.get(), GEN_FILTERQ);
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fluid_mod_set_amount(mod.get(), FLUID_PEAK_ATTENUATION);
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fluid_synth_add_default_mod(synth.get(), mod.get(), FLUID_SYNTH_ADD);
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mod = {new_fluid_mod(), delete_fluid_mod};
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fluid_mod_set_source1(mod.get(),
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static_cast<int>(SOUND_CTRL3), // MIDI CC 72 Release time
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FLUID_MOD_CC
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| FLUID_MOD_UNIPOLAR
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| FLUID_MOD_LINEAR
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| FLUID_MOD_POSITIVE);
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fluid_mod_set_source2(mod.get(), 0, 0);
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fluid_mod_set_dest(mod.get(), GEN_VOLENVRELEASE);
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// fluid_mod_set_amount(mod.get(), 15200.0f);
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fluid_mod_set_amount(mod.get(), env_amount);
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fluid_synth_add_default_mod(synth.get(), mod.get(), FLUID_SYNTH_ADD);
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mod = {new_fluid_mod(), delete_fluid_mod};
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fluid_mod_set_source1(mod.get(),
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static_cast<int>(SOUND_CTRL4), // MIDI CC 73 Attack time
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FLUID_MOD_CC
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| FLUID_MOD_UNIPOLAR
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| FLUID_MOD_LINEAR
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| FLUID_MOD_POSITIVE);
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fluid_mod_set_source2(mod.get(), 0, 0);
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fluid_mod_set_dest(mod.get(), GEN_VOLENVATTACK);
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fluid_mod_set_amount(mod.get(), env_amount);
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fluid_synth_add_default_mod(synth.get(), mod.get(), FLUID_SYNTH_ADD);
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// soundfont spec says that if cutoff is >20kHz and resonance Q is 0, then no filtering occurs
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mod = {new_fluid_mod(), delete_fluid_mod};
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fluid_mod_set_source1(mod.get(),
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static_cast<int>(SOUND_CTRL5), // MIDI CC 74 Brightness (cutoff frequency, FILTERFC)
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FLUID_MOD_CC
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| FLUID_MOD_LINEAR
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| FLUID_MOD_UNIPOLAR
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| FLUID_MOD_POSITIVE);
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fluid_mod_set_source2(mod.get(), 0, 0);
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fluid_mod_set_dest(mod.get(), GEN_FILTERFC);
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fluid_mod_set_amount(mod.get(), -2400.0f);
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fluid_synth_add_default_mod(synth.get(), mod.get(), FLUID_SYNTH_ADD);
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mod = {new_fluid_mod(), delete_fluid_mod};
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fluid_mod_set_source1(mod.get(),
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static_cast<int>(SOUND_CTRL6), // MIDI CC 75 Decay Time
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FLUID_MOD_CC
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| FLUID_MOD_UNIPOLAR
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| FLUID_MOD_LINEAR
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| FLUID_MOD_POSITIVE);
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fluid_mod_set_source2(mod.get(), 0, 0);
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fluid_mod_set_dest(mod.get(), GEN_VOLENVDECAY);
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fluid_mod_set_amount(mod.get(), env_amount);
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fluid_synth_add_default_mod(synth.get(), mod.get(), FLUID_SYNTH_ADD);
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mod = {new_fluid_mod(), delete_fluid_mod};
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fluid_mod_set_source1(mod.get(),
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static_cast<int>(SOUND_CTRL10), // MIDI CC 79 undefined
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FLUID_MOD_CC
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| FLUID_MOD_UNIPOLAR
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| FLUID_MOD_CONCAVE
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| FLUID_MOD_POSITIVE);
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fluid_mod_set_source2(mod.get(), 0, 0);
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fluid_mod_set_dest(mod.get(), GEN_VOLENVSUSTAIN);
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// fluice_voice.c#fluid_voice_update_param()
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// clamps the range to between 0 and 1000, so we'll copy that
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fluid_mod_set_amount(mod.get(), 1000.0f);
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fluid_synth_add_default_mod(synth.get(), mod.get(), FLUID_SYNTH_ADD);
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valueTreeState.state.getChildWithName("soundFont").sendPropertyChangeMessage("path");
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// valueTree.sendPropertyChangeMessage("soundFontPath");
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// initialised = true;
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}
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void FluidSynthModel::parameterChanged(const String& parameterID, float newValue) {
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if (parameterID == "bank") {
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// RangedAudioParameter *param {valueTreeState.getParameter("bank")};
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// jassert(dynamic_cast<AudioParameterInt*> (param) != nullptr);
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// AudioParameterInt* castParam {dynamic_cast<AudioParameterInt*> (param)};
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// int value{castParam->get()};
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int bank, preset;
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{
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RangedAudioParameter *param {valueTreeState.getParameter("bank")};
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jassert(dynamic_cast<AudioParameterInt*> (param) != nullptr);
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AudioParameterInt* castParam {dynamic_cast<AudioParameterInt*> (param)};
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bank = castParam->get();
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}
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{
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RangedAudioParameter *param {valueTreeState.getParameter("preset")};
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jassert(dynamic_cast<AudioParameterInt*> (param) != nullptr);
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AudioParameterInt* castParam {dynamic_cast<AudioParameterInt*> (param)};
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preset = castParam->get();
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}
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fluid_synth_program_select(
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synth.get(),
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channel,
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sfont_id,
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static_cast<unsigned int>(bank),
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static_cast<unsigned int>(preset));
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// fluid_synth_bank_select(synth.get(), channel, value);
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// refreshPresets();
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// fluid_sfont_t* sfont{fluid_synth_get_sfont_by_id(synth.get(), sfont_id)};
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// fluid_sfont_iteration_start(sfont);
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// fluid_preset_t* presetObj{fluid_sfont_iteration_next(sfont)};
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// int offset{fluid_synth_get_bank_offset(synth.get(), sfont_id)};
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// int bank{fluid_preset_get_banknum(presetObj) + offset};
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// int preset{fluid_preset_get_num(presetObj)};
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} else if (parameterID == "preset") {
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int bank, preset;
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{
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RangedAudioParameter *param {valueTreeState.getParameter("bank")};
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jassert(dynamic_cast<AudioParameterInt*> (param) != nullptr);
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AudioParameterInt* castParam {dynamic_cast<AudioParameterInt*> (param)};
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bank = castParam->get();
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}
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{
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RangedAudioParameter *param {valueTreeState.getParameter("preset")};
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jassert(dynamic_cast<AudioParameterInt*> (param) != nullptr);
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AudioParameterInt* castParam {dynamic_cast<AudioParameterInt*> (param)};
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preset = castParam->get();
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}
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// int bank{fluid_synth_get_bank_offset(synth.get(), sfont_id)};
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fluid_synth_program_select(
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synth.get(),
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channel,
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sfont_id,
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static_cast<unsigned int>(bank),
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static_cast<unsigned int>(preset));
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}
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}
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void FluidSynthModel::valueTreePropertyChanged(ValueTree& treeWhosePropertyHasChanged,
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const Identifier& property) {
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if (treeWhosePropertyHasChanged.getType() == StringRef("soundFont")) {
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// if (&treeWhosePropertyHasChanged == &valueTree) {
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if (property == StringRef("path")) {
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String soundFontPath{treeWhosePropertyHasChanged.getProperty("path", "")};
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if (soundFontPath.isNotEmpty()) {
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loadFont(soundFontPath);
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}
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}
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}
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}
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void FluidSynthModel::setControllerValue(int controller, int value) {
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fluid_midi_event_t *midi_event(new_fluid_midi_event());
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fluid_midi_event_set_type(midi_event, static_cast<int>(CONTROL_CHANGE));
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fluid_midi_event_set_channel(midi_event, channel);
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fluid_midi_event_set_control(midi_event, controller);
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fluid_midi_event_set_value(midi_event, value);
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fluid_synth_handle_midi_event(synth.get(), midi_event);
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delete_fluid_midi_event(midi_event);
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// fluid_channel_set_cc(channel, i, 0);
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}
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int FluidSynthModel::getChannel() {
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return channel;
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}
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void FluidSynthModel::changePreset(int bank, int preset) {
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if (bank == -1 || preset == -1) {
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unique_ptr<BankAndPreset> bankAndPreset = getFirstBankAndPreset();
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bank = bankAndPreset->getBank();
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preset = bankAndPreset->getPreset();
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}
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changePresetImpl(bank, preset);
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// sharedParams->setPreset(preset);
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// sharedParams->setBank(bank);
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}
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void FluidSynthModel::changePresetImpl(int bank, int preset) {
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fluid_synth_program_select(synth.get(), channel, sfont_id, static_cast<unsigned int>(bank), static_cast<unsigned int>(preset));
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}
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fluid_preset_t* FluidSynthModel::getFirstPreset() {
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fluid_sfont_t* sfont = fluid_synth_get_sfont_by_id(synth.get(), sfont_id);
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jassert(sfont != nullptr);
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fluid_sfont_iteration_start(sfont);
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return fluid_sfont_iteration_next(sfont);
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}
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unique_ptr<BankAndPreset> FluidSynthModel::getFirstBankAndPreset() {
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fluid_preset_t* preset = getFirstPreset();
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int offset = fluid_synth_get_bank_offset(synth.get(), sfont_id);
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return make_unique<BankAndPreset>(fluid_preset_get_banknum(preset) + offset, fluid_preset_get_num(preset));
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};
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void FluidSynthModel::selectFirstPreset() {
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fluid_preset_t* preset = getFirstPreset();
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int offset = fluid_synth_get_bank_offset(synth.get(), sfont_id);
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changePreset(fluid_preset_get_banknum(preset) + offset, fluid_preset_get_num(preset));
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}
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BanksToPresets FluidSynthModel::getBanks() {
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BanksToPresets banksToPresets;
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int soundfontCount = fluid_synth_sfcount(synth.get());
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if (soundfontCount == 0) {
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// no soundfont selected
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return banksToPresets;
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}
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fluid_sfont_t* sfont = fluid_synth_get_sfont_by_id(synth.get(), sfont_id);
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if(sfont == nullptr) {
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// no soundfont found by that ID
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// the above guard (soundfontCount) protects us for the
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// main case we're expecting. this guard is just defensive programming.
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return banksToPresets;
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}
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int offset = fluid_synth_get_bank_offset(synth.get(), sfont_id);
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fluid_sfont_iteration_start(sfont);
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for(fluid_preset_t* preset = fluid_sfont_iteration_next(sfont);
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preset != nullptr;
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preset = fluid_sfont_iteration_next(sfont)) {
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banksToPresets.insert(BanksToPresets::value_type(
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fluid_preset_get_banknum(preset) + offset,
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*new Preset(
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fluid_preset_get_num(preset),
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fluid_preset_get_name(preset)
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)
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));
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}
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return banksToPresets;
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}
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shared_ptr<fluid_synth_t> FluidSynthModel::getSynth() {
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// https://msdn.microsoft.com/en-us/library/hh279669.aspx
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// You can pass a shared_ptr to another function in the following ways:
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// Pass the shared_ptr by value. This invokes the copy constructor, increments the reference count, and makes the callee an owner.
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return synth;
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}
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void FluidSynthModel::onFileNameChanged(const String &absPath, int bank, int preset) {
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if (!shouldLoadFont(absPath)) {
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return;
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}
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unloadAndLoadFont(absPath);
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changePreset(bank, preset);
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ValueTree valueTree{valueTreeState.state.getChildWithName("soundFont")};
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valueTree.setPropertyExcludingListener(this, "path", absPath, nullptr);
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// valueTree.setPropertyExcludingListener(this, "soundFontPath", absPath, nullptr);
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// sharedParams.setSoundFontPath(absPath);
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// eventListeners.call(&FluidSynthModel::Listener::fontChanged, this, absPath);
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}
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void FluidSynthModel::unloadAndLoadFont(const String &absPath) {
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// in the base case, there is no font loaded
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if (fluid_synth_sfcount(synth.get()) > 0) {
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fluid_synth_sfunload(synth.get(), sfont_id, 1);
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}
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loadFont(absPath);
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}
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void FluidSynthModel::loadFont(const String &absPath) {
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currentSoundFontAbsPath = absPath;
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sfont_id++;
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fluid_synth_sfload(synth.get(), absPath.toStdString().c_str(), 1);
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refreshBanks();
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}
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void FluidSynthModel::refreshBanks() {
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fluid_sfont_t* sfont {fluid_synth_get_sfont_by_id(synth.get(), sfont_id)};
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ValueTree banks{"banks"};
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if (sfont != nullptr) {
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int greatestEncounteredBank{-1};
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ValueTree bank;
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fluid_sfont_iteration_start(sfont);
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for(fluid_preset_t* preset {fluid_sfont_iteration_next(sfont)};
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preset != nullptr;
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preset = fluid_sfont_iteration_next(sfont)) {
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int bankNum{fluid_preset_get_banknum(preset)};
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if (bankNum > greatestEncounteredBank) {
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if (greatestEncounteredBank > -1) {
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banks.appendChild(bank, nullptr);
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}
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bank = { "bank", {
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{ "num", bankNum }
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} };
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greatestEncounteredBank = bankNum;
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}
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bank.appendChild({ "preset", {
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{ "num", fluid_preset_get_num(preset) },
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{ "name", String{fluid_preset_get_name(preset)} }
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}, {} }, nullptr);
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}
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if (greatestEncounteredBank > -1) {
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banks.appendChild(bank, nullptr);
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}
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}
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valueTreeState.state.getChildWithName("banks").copyPropertiesAndChildrenFrom(banks, nullptr);
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valueTreeState.state.getChildWithName("banks").sendPropertyChangeMessage("synthetic");
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#if JUCE_DEBUG
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unique_ptr<XmlElement> xml{valueTreeState.state.createXml()};
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Logger::outputDebugString(xml->createDocument("",false,false));
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#endif
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}
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// void FluidSynthModel::refreshBanks() {
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// fluid_sfont_t* sfont {fluid_synth_get_sfont_by_id(synth.get(), sfont_id)};
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// ValueTree banks{"banks"};
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// if (sfont != nullptr) {
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// // int initialBankOffset{fluid_synth_get_bank_offset(synth.get(), sfont_id)};
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// banks.appendChild({ "bank", {
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// { "num", /* initialBankOffset */ 0 },
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// }, {} }, nullptr);
|
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// // int greatestPersistedBank{initialBankOffset};
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// int greatestPersistedBank{0};
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|
|
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// fluid_sfont_iteration_start(sfont);
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|
|
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// for(fluid_preset_t* preset {fluid_sfont_iteration_next(sfont)};
|
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// preset != nullptr;
|
|
// preset = fluid_sfont_iteration_next(sfont)) {
|
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// int bank{fluid_preset_get_banknum(preset) /* + initialBankOffset */};
|
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// if (bank > greatestPersistedBank) {
|
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// banks.appendChild({ "bank", {
|
|
// { "num", bank },
|
|
// }, {} }, nullptr);
|
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// greatestPersistedBank = bank;
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// }
|
|
// }
|
|
// }
|
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// valueTreeState.state.getChildWithName("banks").copyPropertiesAndChildrenFrom(banks, nullptr);
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// valueTreeState.state.getChildWithName("banks").sendPropertyChangeMessage("synthetic");
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// refreshPresets();
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// }
|
|
|
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// void FluidSynthModel::refreshPresets() {
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// fluid_sfont_t* sfont {fluid_synth_get_sfont_by_id(synth.get(), sfont_id)};
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// ValueTree presets{"presets"};
|
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// if (sfont != nullptr) {
|
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// RangedAudioParameter *param {valueTreeState.getParameter("bank")};
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// jassert(dynamic_cast<AudioParameterInt*> (param) != nullptr);
|
|
// AudioParameterInt* castParam {dynamic_cast<AudioParameterInt*> (param)};
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// int value{castParam->get()};
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|
|
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// // int initialBank{fluid_synth_get_bank_offset(synth.get(), sfont_id)};
|
|
|
|
// fluid_sfont_iteration_start(sfont);
|
|
|
|
// for(fluid_preset_t* preset {fluid_sfont_iteration_next(sfont)};
|
|
// preset != nullptr;
|
|
// preset = fluid_sfont_iteration_next(sfont)) {
|
|
// int bank{fluid_preset_get_banknum(preset) /* + initialBank */};
|
|
// if (bank == value) {
|
|
// presets.appendChild({ "preset", {
|
|
// { "num", fluid_preset_get_num(preset) },
|
|
// { "name", String{fluid_preset_get_name(preset)} }
|
|
// }, {} }, nullptr);
|
|
// }
|
|
// }
|
|
// }
|
|
// valueTreeState.state.getChildWithName("presets").copyPropertiesAndChildrenFrom(presets, nullptr);
|
|
// valueTreeState.state.getChildWithName("presets").sendPropertyChangeMessage("synthetic");
|
|
// }
|
|
|
|
// void FluidSynthModel::refreshBanksAndPresets() {
|
|
// fluid_sfont_t* sfont {fluid_synth_get_sfont_by_id(synth.get(), sfont_id)};
|
|
// ValueTree banks{"banks"};
|
|
// ValueTree presets{"presets"};
|
|
// if (sfont != nullptr) {
|
|
// int initialBankOffset{fluid_synth_get_bank_offset(synth.get(), sfont_id)};
|
|
// banks.appendChild({ "bank", {
|
|
// { "num", initialBankOffset },
|
|
// }, {} }, nullptr);
|
|
// int greatestPersistedBank{initialBankOffset};
|
|
|
|
// fluid_sfont_iteration_start(sfont);
|
|
|
|
// for(fluid_preset_t* preset {fluid_sfont_iteration_next(sfont)};
|
|
// preset != nullptr;
|
|
// preset = fluid_sfont_iteration_next(sfont)) {
|
|
// int bankOffset{fluid_preset_get_banknum(preset) + initialBankOffset};
|
|
// // ValueTree preset{"preset"};
|
|
// // banksToPresets.insert(BanksToPresets::value_type(
|
|
// // fluid_preset_get_banknum(preset) + bankOffset,
|
|
// // *new Preset(
|
|
// // fluid_preset_get_num(preset),
|
|
// // fluid_preset_get_name(preset)
|
|
// // )
|
|
// // ));
|
|
// if (bankOffset > greatestPersistedBank) {
|
|
// banks.appendChild({ "bank", {
|
|
// { "num", bankOffset },
|
|
// }, {} }, nullptr);
|
|
// greatestPersistedBank = bankOffset;
|
|
// }
|
|
// presets.appendChild({ "preset", {
|
|
// { "num", fluid_preset_get_num(preset) },
|
|
// { "name", String{fluid_preset_get_name(preset)} }
|
|
// }, {} }, nullptr);
|
|
// }
|
|
// }
|
|
// // valueTreeState.state.getChildWithName("banks") = banks;
|
|
// // valueTreeState.state.getChildWithName("presets") = presets;
|
|
// valueTreeState.state.getChildWithName("banks").copyPropertiesAndChildrenFrom(banks, nullptr);
|
|
// valueTreeState.state.getChildWithName("presets").copyPropertiesAndChildrenFrom(presets, nullptr);
|
|
// valueTreeState.state.getChildWithName("banks").sendPropertyChangeMessage("synthetic");
|
|
// valueTreeState.state.getChildWithName("presets").sendPropertyChangeMessage("synthetic");
|
|
|
|
// #if JUCE_DEBUG
|
|
// unique_ptr<XmlElement> xml{valueTreeState.state.createXml()};
|
|
// Logger::outputDebugString(xml->createDocument("",false,false));
|
|
// #endif
|
|
// }
|
|
|
|
// FluidSynthModel::Listener::~Listener() {
|
|
// }
|
|
|
|
bool FluidSynthModel::shouldLoadFont(const String &absPath) {
|
|
if (absPath.isEmpty()) {
|
|
return false;
|
|
}
|
|
if (absPath == currentSoundFontAbsPath) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// void FluidSynthModel::Listener::fontChanged(FluidSynthModel * model, const String &absPath) {
|
|
// }
|
|
|
|
const String& FluidSynthModel::getCurrentSoundFontAbsPath() {
|
|
return currentSoundFontAbsPath;
|
|
}
|
|
|
|
//==============================================================================
|
|
// void FluidSynthModel::addListener (FluidSynthModel::Listener* const newListener)
|
|
// {
|
|
// eventListeners.add(newListener);
|
|
// }
|
|
|
|
// void FluidSynthModel::removeListener (FluidSynthModel::Listener* const listener)
|
|
// {
|
|
// eventListeners.remove(listener);
|
|
// }
|
|
|
|
void FluidSynthModel::setSampleRate(float sampleRate) {
|
|
currentSampleRate = sampleRate;
|
|
// https://stackoverflow.com/a/40856043/5257399
|
|
// test if a smart pointer is null
|
|
if (!synth) {
|
|
// don't worry; we'll do this in initialise phase regardless
|
|
return;
|
|
}
|
|
fluid_synth_set_sample_rate(synth.get(), sampleRate);
|
|
}
|