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added waveform selectors

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2025-12-27 14:30:49 -06:00
parent 6b52f8fa4f
commit 814002f0d9
9 changed files with 354 additions and 79 deletions
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22
src/synth/Synth.cpp
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@@ -94,8 +94,25 @@ void Synth::process(float* out, uint32_t nFrames, uint32_t sampleRate) {
// TODO: wavetables should be scaled by their RMS for equal loudness (prelim standard = 0.707)
float sineSample = std::sin(phase_);
float squareSample = (phase_ >= M_PI) ? 0.707f : -0.707f;
float sawSample = ((phase_ / M_PI) - 1.0f) / 0.577f * 0.707f;
sampleOut = squareSample * gain;
float sawSample = ((phase_ / M_PI) - 1.0f) / 0.577f * 0.707f;
// switch statement will be replaced with an array index for our array of wavetables
switch (static_cast<int32_t>(std::round(getParam(ParamId::Osc1WaveSelector1)))) {
case 0:
sampleOut = sineSample * gain;
break;
case 1:
sampleOut = squareSample * gain;
break;
case 2:
sampleOut = sawSample * gain;
break;
case 3:
// TODO: no triable wave yet :(
sampleOut = sineSample * gain;
break;
default: // unreachable
break;
}
// write to buffer
out[2*i] = sampleOut; // left
@@ -113,6 +130,7 @@ void Synth::process(float* out, uint32_t nFrames, uint32_t sampleRate) {
if(!triggered) {
scope_->setTrigger(i); // this is where we consider the start of a waveform
triggered = true;
// TODO: investigate triggering accross buffers when a single wave period transcends a single audio buffer
}
}
}