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polyphony checkpoint

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homeburger
2026-06-12 23:13:18 -05:00
parent 347f585630
commit 9f79f11a19
10 changed files with 218 additions and 39 deletions
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34
src/synth/AudioEngine.cpp
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@@ -6,7 +6,7 @@
#include <numbers>
#include <string>
AudioEngine::AudioEngine(ConfigService* config, LoggerService* logger, NoteQueue* noteQueue) : config_(config), logger_(logger), noteQueue_(noteQueue) {
AudioEngine::AudioEngine(ConfigService* config, LoggerService* logger, Synth* synth) : config_(config), logger_(logger), synth_(synth) {
if(audioDevice_.getDeviceCount() < 1) {
std::cout << "No audio devices found" << std::endl;
@@ -70,29 +70,23 @@ int32_t AudioEngine::audioCallback(void* outputBuffer, void* inputBuffer, uint32
int32_t AudioEngine::process(float* out, size_t nFrames) {
NoteEvent noteEvent;
while(noteQueue_->pop(noteEvent)) {
//std::string msg = "[NoteEvent] Type: " + std::to_string(noteEvent.type) +" Velocity: " + std::to_string(noteEvent.velocity) + " Note:" + std::to_string(noteEvent.note);
//logger_->log("Audio", LogFlag::Debug, msg);
noteOn_ = (noteEvent.type == NoteEventType::NoteOn) ? true : false;
freq_ = 440.0f * pow(2.0f, (static_cast<float>(noteEvent.note) - 69.0f) / 12.0f);
}
synth_->process(out, nFrames);
const float twoPi = 2.0f*std::numbers::pi_v<float>;
float phaseIncrement = twoPi * freq_ / sampleRate_;
// const float twoPi = 2.0f*std::numbers::pi_v<float>;
// float phaseIncrement = twoPi * freq_ / sampleRate_;
for(size_t i = 0; i < nFrames; i++) {
// for(size_t i = 0; i < nFrames; i++) {
// simulate a sine wave
phase_ += phaseIncrement;
if(phase_ > twoPi) {
phase_ -= twoPi;
}
float outSample = std::sin(phase_) / 4.0f * noteOn_;
// // simulate a sine wave
// phase_ += phaseIncrement;
// if(phase_ > twoPi) {
// phase_ -= twoPi;
// }
// float outSample = std::sin(phase_) / 4.0f * noteOn_;
out[2*i] = outSample;
out[2*i+1] = outSample;
}
// out[2*i] = outSample;
// out[2*i+1] = outSample;
// }
return 0;