move message-routing, midi-rendering concerns into FluidSynthModel
This commit is contained in:
Alex Birch
parent
e772b4bcf0
commit
d4a060b769
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@ -610,3 +610,133 @@ void FluidSynthModel::setSampleRate(float sampleRate) {
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}
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fluid_synth_set_sample_rate(synth.get(), sampleRate);
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}
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void FluidSynthModel::processBlock(AudioBuffer<float>& buffer, MidiBuffer& midiMessages) {
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MidiBuffer processedMidi;
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int time;
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MidiMessage m;
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for (MidiBuffer::Iterator i{midiMessages}; i.getNextEvent(m, time);) {
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DEBUG_PRINT(m.getDescription());
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if (m.isNoteOn()) {
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fluid_synth_noteon(
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synth.get(),
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channel,
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m.getNoteNumber(),
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m.getVelocity());
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} else if (m.isNoteOff()) {
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fluid_synth_noteoff(
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synth.get(),
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channel,
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m.getNoteNumber());
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} else if (m.isController()) {
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fluid_synth_cc(
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synth.get(),
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channel,
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m.getControllerNumber(),
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m.getControllerValue());
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switch(static_cast<fluid_midi_control_change>(m.getControllerNumber())) {
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case SOUND_CTRL2: { // MIDI CC 71 Timbre/Harmonic Intensity (filter resonance)
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// valueTreeState.state.setProperty({"filterResonance"}, m.getControllerValue(), nullptr);
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RangedAudioParameter *param{valueTreeState.getParameter("filterResonance")};
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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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break;
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}
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case SOUND_CTRL3: { // MIDI CC 72 Release time
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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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break;
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}
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case SOUND_CTRL4: { // MIDI CC 73 Attack time
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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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break;
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}
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case SOUND_CTRL5: { // MIDI CC 74 Brightness (cutoff frequency, FILTERFC)
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RangedAudioParameter *param{valueTreeState.getParameter("filterCutOff")};
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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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break;
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}
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case SOUND_CTRL6: { // MIDI CC 75 Decay Time
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RangedAudioParameter *param{valueTreeState.getParameter("decay")};
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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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break;
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}
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case SOUND_CTRL10: { // MIDI CC 79 undefined
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RangedAudioParameter *param {valueTreeState.getParameter("sustain")};
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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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break;
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}
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default: {
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break;
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}
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}
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} else if (m.isProgramChange()) {
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int result{fluid_synth_program_change(
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synth.get(),
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channel,
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m.getProgramChangeNumber())};
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if (result == FLUID_OK) {
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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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*castParam = m.getProgramChangeNumber();
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}
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} else if (m.isPitchWheel()) {
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fluid_synth_pitch_bend(
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synth.get(),
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channel,
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m.getPitchWheelValue());
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} else if (m.isChannelPressure()) {
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fluid_synth_channel_pressure(
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synth.get(),
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channel,
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m.getChannelPressureValue());
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} else if (m.isAftertouch()) {
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fluid_synth_key_pressure(
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synth.get(),
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channel,
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m.getNoteNumber(),
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m.getAfterTouchValue());
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// } else if (m.isMetaEvent()) {
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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>(MIDI_SYSTEM_RESET));
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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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} else if (m.isSysEx()) {
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fluid_synth_sysex(
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synth.get(),
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reinterpret_cast<const char*>(m.getSysExData()),
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m.getSysExDataSize(),
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nullptr, // no response pointer because we have no interest in handling response currently
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nullptr, // no response_len pointer because we have no interest in handling response currently
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nullptr, // no handled pointer because we have no interest in handling response currently
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static_cast<int>(false));
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}
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}
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// fluid_synth_get_cc(fluidSynth, 0, 73, &pval);
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// Logger::outputDebugString ( juce::String::formatted("hey: %d\n", pval) );
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fluid_synth_process(
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synth.get(),
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buffer.getNumSamples(),
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0,
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nullptr,
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buffer.getNumChannels(),
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buffer.getArrayOfWritePointers());
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}
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@ -39,6 +39,8 @@ public:
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// void onFileNameChanged(const String &absPath, int bank, int preset);
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void setControllerValue(int controller, int value);
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void processBlock(AudioBuffer<float>& buffer, MidiBuffer& midiMessages);
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//==============================================================================
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/**
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Used to receive callbacks when a button is clicked.
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@ -101,14 +101,14 @@ void JuicySFAudioProcessor::initialiseSynth() {
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// fluidSynth = fluidSynthModel.getSynth();
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const int numVoices = 8;
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// const int numVoices = 8;
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// Add some voices...
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for (int i = numVoices; --i >= 0;)
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synth.addVoice(new SoundfontSynthVoice(fluidSynthModel.getSynth()));
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// for (int i = numVoices; --i >= 0;)
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// synth.addVoice(new SoundfontSynthVoice(fluidSynthModel.getSynth()));
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// ..and give the synth a sound to play
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synth.addSound(new SoundfontSynthSound());
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// synth.addSound(new SoundfontSynthSound());
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}
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//==============================================================================
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@ -208,148 +208,16 @@ AudioProcessor::BusesProperties JuicySFAudioProcessor::getBusesProperties() {
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void JuicySFAudioProcessor::processBlock(AudioBuffer<float>& buffer, MidiBuffer& midiMessages) {
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jassert (!isUsingDoublePrecision());
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const int numSamples = buffer.getNumSamples();
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const int numSamples{buffer.getNumSamples()};
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// Now pass any incoming midi messages to our keyboard state object, and let it
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// add messages to the buffer if the user is clicking on the on-screen keys
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keyboardState.processNextMidiBuffer (midiMessages, 0, numSamples, true);
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keyboardState.processNextMidiBuffer(midiMessages, 0, numSamples, true);
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MidiBuffer processedMidi;
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int time;
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MidiMessage m;
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// TODO: factor into a MidiMessageCollector
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for (MidiBuffer::Iterator i (midiMessages); i.getNextEvent (m, time);) {
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DEBUG_PRINT ( m.getDescription() );
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// explicitly not handling note_on/off, or pitch_bend, because these are (for better or worse)
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// responsibilities of SoundfontSynthVoice.
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// well, by that logic maybe I should move program change onto Voice. but it doesn't feel like a per-voice concern.
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if (m.isController()) {
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// shared_ptr<fluid_midi_event_t> midi_event{
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// new_fluid_midi_event(),
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// [](fluid_midi_event_t *event) {
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// delete_fluid_midi_event(midi_event);
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// }};
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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, fluidSynthModel.getChannel());
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fluid_midi_event_set_control(midi_event, m.getControllerNumber());
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fluid_midi_event_set_value(midi_event, m.getControllerValue());
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fluid_synth_handle_midi_event(fluidSynthModel.getSynth().get(), midi_event);
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delete_fluid_midi_event(midi_event);
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switch(static_cast<fluid_midi_control_change>(m.getControllerNumber())) {
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case SOUND_CTRL2: { // MIDI CC 71 Timbre/Harmonic Intensity (filter resonance)
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// valueTreeState.state.setProperty({"filterResonance"}, m.getControllerValue(), nullptr);
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RangedAudioParameter *param {valueTreeState.getParameter("filterResonance")};
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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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break;
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}
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case SOUND_CTRL3: { // MIDI CC 72 Release time
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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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break;
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}
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case SOUND_CTRL4: { // MIDI CC 73 Attack time
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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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break;
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}
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case SOUND_CTRL5: { // MIDI CC 74 Brightness (cutoff frequency, FILTERFC)
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RangedAudioParameter *param {valueTreeState.getParameter("filterCutOff")};
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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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break;
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}
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case SOUND_CTRL6: { // MIDI CC 75 Decay Time
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RangedAudioParameter *param {valueTreeState.getParameter("decay")};
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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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break;
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}
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case SOUND_CTRL10: { // MIDI CC 79 undefined
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RangedAudioParameter *param {valueTreeState.getParameter("sustain")};
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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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break;
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}
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default: {
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break;
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}
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}
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// sharedParams->acceptMidiControlEvent(m.getControllerNumber(), m.getControllerValue());
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// AudioProcessorEditor* editor{getActiveEditor()};
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// jassert(dynamic_cast<ExposesComponents*> (editor) != nullptr);
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// ExposesComponents* exposesComponents{dynamic_cast<ExposesComponents*>(editor)};
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// exposesComponents->getSliders().acceptMidiControlEvent(m.getControllerNumber(), m.getControllerValue());
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} else if (m.isProgramChange()) {
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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>(PROGRAM_CHANGE));
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fluid_midi_event_set_channel(midi_event, fluidSynthModel.getChannel());
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fluid_midi_event_set_program(midi_event, m.getProgramChangeNumber());
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fluid_synth_handle_midi_event(fluidSynthModel.getSynth().get(), midi_event);
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delete_fluid_midi_event(midi_event);
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} else if (m.isPitchWheel()) {
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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>(PITCH_BEND));
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fluid_midi_event_set_channel(midi_event, fluidSynthModel.getChannel());
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fluid_midi_event_set_pitch(midi_event, m.getPitchWheelValue());
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fluid_synth_handle_midi_event(fluidSynthModel.getSynth().get(), midi_event);
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delete_fluid_midi_event(midi_event);
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} else if (m.isChannelPressure()) {
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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>(CHANNEL_PRESSURE));
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fluid_midi_event_set_channel(midi_event, fluidSynthModel.getChannel());
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fluid_midi_event_set_program(midi_event, m.getChannelPressureValue());
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fluid_synth_handle_midi_event(fluidSynthModel.getSynth().get(), midi_event);
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delete_fluid_midi_event(midi_event);
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} else if (m.isAftertouch()) {
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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>(KEY_PRESSURE));
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fluid_midi_event_set_channel(midi_event, fluidSynthModel.getChannel());
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fluid_midi_event_set_key(midi_event, m.getNoteNumber());
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fluid_midi_event_set_value(midi_event, m.getAfterTouchValue());
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fluid_synth_handle_midi_event(fluidSynthModel.getSynth().get(), midi_event);
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delete_fluid_midi_event(midi_event);
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// } else if (m.isMetaEvent()) {
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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>(MIDI_SYSTEM_RESET));
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// fluid_synth_handle_midi_event(fluidSynthModel.getSynth().get(), midi_event);
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// delete_fluid_midi_event(midi_event);
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} else if (m.isSysEx()) {
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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>(MIDI_SYSEX));
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// I assume that the MidiMessage's sysex buffer would be freed anyway when MidiMessage is destroyed, so set dynamic=false
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// to ensure that fluidsynth does not attempt to free the sysex buffer during delete_fluid_midi_event()
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fluid_midi_event_set_sysex(midi_event, const_cast<juce::uint8*>(m.getSysExData()), m.getSysExDataSize(), static_cast<int>(false));
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fluid_synth_handle_midi_event(fluidSynthModel.getSynth().get(), midi_event);
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delete_fluid_midi_event(midi_event);
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}
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}
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// int pval;
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// 73: 64 attack
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// 75: decay
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// 79: sustain
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// 72: 64 release
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// fluid_synth_get_cc(fluidSynth, 0, 73, &pval);
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// Logger::outputDebugString ( juce::String::formatted("hey: %d\n", pval) );
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fluidSynthModel.processBlock(buffer, midiMessages);
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// and now get our synth to process these midi events and generate its output.
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synth.renderNextBlock (buffer, midiMessages, 0, numSamples);
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fluid_synth_process(fluidSynthModel.getSynth().get(), numSamples, 0, nullptr, buffer.getNumChannels(), buffer.getArrayOfWritePointers());
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// synth.renderNextBlock(buffer, midiMessages, 0, numSamples);
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// (see juce_VST3_Wrapper.cpp for the assertion this would trip otherwise)
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// we are !JucePlugin_ProducesMidiOutput, so clear remaining MIDI messages from our buffer
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