102 lines
3.5 KiB
C++
102 lines
3.5 KiB
C++
//
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// Created by Alex Birch on 07/09/2017.
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//
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#include "SoundfontSynthVoice.h"
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#include "SoundfontSynthSound.h"
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SoundfontSynthVoice::SoundfontSynthVoice(fluid_synth_t* synth)
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: tailOff (0.0),
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level(0.0),
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currentAngle(0.0),
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angleDelta(0.0),
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midiNoteNumber(0),
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synth(synth)
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{
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}
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bool SoundfontSynthVoice::canPlaySound(SynthesiserSound* sound) {
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return dynamic_cast<SoundfontSynthSound*> (sound) != nullptr;
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}
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void SoundfontSynthVoice::startNote(
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int midiNoteNumber,
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float velocity,
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SynthesiserSound* sound,
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int /*currentPitchWheelPosition*/) {
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this->midiNoteNumber = midiNoteNumber;
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fluid_synth_noteon(synth, 0, midiNoteNumber, static_cast<int>(velocity * 127));
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// currentAngle = 0.0;
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// level = velocity * 0.15;
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// tailOff = 0.0;
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//
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// double cyclesPerSecond = MidiMessage::getMidiNoteInHertz (midiNoteNumber);
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// double cyclesPerSample = cyclesPerSecond / getSampleRate();
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//
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// angleDelta = cyclesPerSample * 2.0 * double_Pi;
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// jassert(dynamic_cast<SoundfontSynthSound*> (sound) != nullptr);
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// SoundfontSynthSound* sfsynth = dynamic_cast<SoundfontSynthSound*> (sound);
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}
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void SoundfontSynthVoice::stopNote (float /*velocity*/, bool allowTailOff) {
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// if (allowTailOff) {
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// // start a tail-off by setting this flag. The render callback will pick up on
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// // this and do a fade out, calling clearCurrentNote() when it's finished.
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//
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// // we only need to begin a tail-off if it's not already doing so - the
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// if (tailOff == 0.0) {
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// // stopNote method could be called more than once.
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// tailOff = 1.0;
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// }
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// } else {
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// // we're being told to stop playing immediately, so reset everything..
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//
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// clearCurrentNote();
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// angleDelta = 0.0;
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// }
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clearCurrentNote();
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fluid_synth_noteoff(synth, 0, this->midiNoteNumber);
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}
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// receives input as MIDI 0 to 16383, with 8192 being center
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// this is also exactly the input fluidsynth requires
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void SoundfontSynthVoice::pitchWheelMoved (int newValue) {
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Logger::outputDebugString ( juce::String::formatted("Pitch wheel: %d\n", newValue) );
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fluid_synth_pitch_bend(synth, 0, newValue);
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}
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void SoundfontSynthVoice::controllerMoved (int controllerNumber, int newValue) {
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Logger::outputDebugString ( juce::String::formatted("Controlled moved: %d, %d\n", controllerNumber, newValue) );
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}
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void SoundfontSynthVoice::renderNextBlock (AudioBuffer<float>& outputBuffer, int startSample, int numSamples) {
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//fluid_synth_process(synth.get(), numSamples, 1, nullptr, outputBuffer.getNumChannels(), outputBuffer.getArrayOfWritePointers());
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}
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//void SoundfontSynthVoice::renderBlock (AudioBuffer<float>& outputBuffer, int startSample, int numSamples) {
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// fluid_synth_process(synth.get(), numSamples, 1, nullptr, outputBuffer.getNumChannels(), outputBuffer.getArrayOfWritePointers());
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// if (angleDelta == 0.0) {
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// return;
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// }
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// while (--numSamples >= 0) {
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// double qualifiedTailOff = tailOff > 0 ? tailOff : 1.0;
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// auto currentSample = static_cast<FloatType> (std::sin (currentAngle) * level * qualifiedTailOff);
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// for (int i = outputBuffer.getNumChannels(); --i >= 0;)
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// outputBuffer.addSample (i, startSample, currentSample);
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//
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// currentAngle += angleDelta;
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// ++startSample;
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//
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// if (tailOff > 0) {
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// tailOff *= 0.99;
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//
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// if (tailOff <= 0.005) {
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// clearCurrentNote();
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// angleDelta = 0.0;
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// break;
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// }
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// }
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// }
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//}
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