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2025-12-25 22:25:37 -06:00
parent 97de073690
commit ce5c9e76a3
6 changed files with 81 additions and 72 deletions
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8
src/ParameterStore.h
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@@ -36,10 +36,10 @@ struct ParamDef {
constexpr std::array<ParamDef, static_cast<size_t>(ParamId::Count)> PARAM_DEFS {{
{ 100.0f, 20.0f, 600.0f}, // Osc1Freq
{ 0.8f, 0.0f, 1.0f}, // Osc1Gain
{ 10.0f, 0.0f, 1000.0f}, // Osc1VolumeEnvA,
{ 10.0f, 0.0f, 1000.0f}, // Osc1VolumeEnvD,
{ 10.0f, 0.0f, 1000.0f}, // Osc1VolumeEnvS,
{ 0.2f, 0.0f, 2.0f}, // Osc1VolumeEnvR,
{ 0.05f, 0.0f, 2.0f}, // Osc1VolumeEnvA,
{ 0.2f, 0.0f, 2.0f}, // Osc1VolumeEnvD,
{ 0.7f, 0.0f, 1.0f}, // Osc1VolumeEnvS,
{ 0.2f, 0.0f, 2.0f}, // Osc1VolumeEnvR,
{ 10.0f, 0.0f, 1000.0f}, // FilterCutoffEnvA,
{ 10.0f, 0.0f, 1000.0f}, // FilterCutoffEnvD,
{ 10.0f, 0.0f, 1000.0f}, // FilterCutoffEnvS,

2
src/synth/Envelope.h
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@@ -21,7 +21,7 @@ public:
// setters
void setSampleRate(float sampleRate) { sampleRate_ = sampleRate; }
void set(float a, float d, float s, float r) { setAttack(a); setDecay(a); setSustain(a); setRelease(a); }
void set(float a, float d, float s, float r) { setAttack(a); setDecay(d); setSustain(s); setRelease(r); }
void setAttack(float seconds) { attack_ = std::max(seconds, 0.0001f); }
void setDecay(float seconds) { decay_ = std::max(seconds, 0.0001f); }
void setSustain(float level) { sustain_ = level; }

7
src/synth/Synth.cpp
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@@ -31,7 +31,6 @@ inline float Synth::noteToFrequency(uint8_t note) {
return SYNTH_PITCH_STANDARD * pow(2.0f, static_cast<float>(note - SYNTH_MIDI_HOME) / static_cast<float>(SYNTH_NOTES_PER_OCTAVE));
}
// TODO: stop popping on note-offs
void Synth::handleNoteEvent(const NoteEvent& event) {
if(event.type == NoteEventType::NoteOn) {
// add note to activeNotes list
@@ -73,8 +72,7 @@ void Synth::process(float* out, uint32_t nFrames, uint32_t sampleRate) {
for(auto& p : params_) p.update(); // TODO: profile this
// process all envelopes
//gainEnvelope_.set(0.05f, 0.2f, 0.7f, getParam(ParamId::Osc1VolumeEnvR));
gainEnvelope_.setRelease(getParam(ParamId::Osc1VolumeEnvR));
gainEnvelope_.set(getParam(ParamId::Osc1VolumeEnvA), getParam(ParamId::Osc1VolumeEnvD), getParam(ParamId::Osc1VolumeEnvS), getParam(ParamId::Osc1VolumeEnvR));
float gain = gainEnvelope_.process();
// skip if no active notes
@@ -90,8 +88,7 @@ void Synth::process(float* out, uint32_t nFrames, uint32_t sampleRate) {
// TODO: wavetables
// TODO: wavetables should be scaled by their RMS for equal loudness (prelim standard = 0.707)
float sineSample = std::sin(phase_);
float squareSample = -0.707f;
if(phase_ >= M_PI) squareSample = 0.707f;
float squareSample = (phase_ >= M_PI) ? 0.707f : -0.707f;
float sawSample = phase_ * 4.0f / M_PI * frequency_ / static_cast<float>(sampleRate);
sampleOut = sawSample * gain;

36
src/ui/MainWindow.cpp
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@@ -15,20 +15,33 @@ MainWindow::MainWindow(QWidget *parent) :
setFocusPolicy(Qt::StrongFocus);
// Initialize UI
updateCounterLabel();
// Connect buttons to slots
connect(ui_->buttonIncrement, &QPushButton::clicked, this, &MainWindow::onIncrementClicked);
connect(ui_->buttonReset, &QPushButton::clicked, this, &MainWindow::onResetClicked);
// synth business
audio_->start();
// slider business
connect(ui_->sliderGainA, &SmartSlider::valueChanged, this, [this](float v) {
audio_->parameters()->set(ParamId::Osc1VolumeEnvA, v); // bind valueChanged signal to the ParameterStore
});
connect(ui_->sliderGainD, &SmartSlider::valueChanged, this, [this](float v) {
audio_->parameters()->set(ParamId::Osc1VolumeEnvD, v); // bind valueChanged signal to the ParameterStore
});
connect(ui_->sliderGainS, &SmartSlider::valueChanged, this, [this](float v) {
audio_->parameters()->set(ParamId::Osc1VolumeEnvS, v); // bind valueChanged signal to the ParameterStore
});
connect(ui_->sliderGainR, &SmartSlider::valueChanged, this, [this](float v) {
audio_->parameters()->set(ParamId::Osc1VolumeEnvR, v); // bind valueChanged signal to the ParameterStore
});
// initialize to defaults
ui_->sliderGainA->setRange(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvA)].min, PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvA)].max);
ui_->sliderGainA->setValue(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvA)].def);
ui_->sliderGainD->setRange(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvD)].min, PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvD)].max);
ui_->sliderGainD->setValue(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvD)].def);
ui_->sliderGainS->setRange(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvS)].min, PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvS)].max);
ui_->sliderGainS->setValue(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvS)].def);
ui_->sliderGainR->setRange(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvR)].min, PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvR)].max);
ui_->sliderGainR->setValue(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvR)].def);
// TODO: package a smartSlider into an envelope controller widget
@@ -47,16 +60,15 @@ void MainWindow::keyReleaseEvent(QKeyEvent* event) {
keyboard_.handleKeyRelease(event);
}
void MainWindow::onIncrementClicked() {
counter_++;
updateCounterLabel();
}
void MainWindow::onResetClicked() {
counter_ = 0;
updateCounterLabel();
}
void MainWindow::updateCounterLabel() {
ui_->labelCounter->setText(QString::number(counter_));
// initialize to defaults
ui_->sliderGainA->setRange(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvA)].min, PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvA)].max);
ui_->sliderGainA->setValue(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvA)].def);
ui_->sliderGainD->setRange(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvD)].min, PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvD)].max);
ui_->sliderGainD->setValue(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvD)].def);
ui_->sliderGainS->setRange(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvS)].min, PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvS)].max);
ui_->sliderGainS->setValue(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvS)].def);
ui_->sliderGainR->setRange(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvR)].min, PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvR)].max);
ui_->sliderGainR->setValue(PARAM_DEFS[static_cast<size_t>(ParamId::Osc1VolumeEnvR)].def);
}

6
src/ui/MainWindow.h
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@@ -23,16 +23,10 @@ protected:
void keyReleaseEvent(QKeyEvent* event) override;
private slots:
void onIncrementClicked();
void onResetClicked();
private:
Ui::MainWindow *ui_;
int counter_ = 0;
int value = 0;
void updateCounterLabel();
AudioEngine* audio_ = nullptr;
KeyboardController keyboard_;

92
src/ui/MainWindow.ui
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@@ -13,30 +13,15 @@
<property name="windowTitle">
<string>MainWindow</string>
</property>
<property name="autoFillBackground">
<bool>true</bool>
</property>
<widget class="QWidget" name="centralwidget">
<widget class="QPushButton" name="buttonIncrement">
<property name="geometry">
<rect>
<x>50</x>
<y>70</y>
<width>101</width>
<height>31</height>
</rect>
</property>
<property name="font">
<font>
<pointsize>15</pointsize>
</font>
</property>
<property name="text">
<string>Increment</string>
</property>
</widget>
<widget class="QPushButton" name="buttonReset">
<property name="geometry">
<rect>
<x>50</x>
<y>100</y>
<x>10</x>
<y>10</y>
<width>101</width>
<height>31</height>
</rect>
@@ -50,36 +35,57 @@
<string>Reset</string>
</property>
</widget>
<widget class="QLabel" name="labelCounter">
<property name="geometry">
<rect>
<x>30</x>
<y>20</y>
<width>151</width>
<height>41</height>
</rect>
</property>
<property name="font">
<font>
<pointsize>30</pointsize>
</font>
</property>
<property name="text">
<string>Counter</string>
</property>
<property name="alignment">
<set>Qt::AlignmentFlag::AlignCenter</set>
</property>
</widget>
<widget class="SmartSlider" name="sliderGainR" native="true">
<property name="geometry">
<rect>
<x>340</x>
<y>120</y>
<x>580</x>
<y>180</y>
<width>171</width>
<height>321</height>
</rect>
</property>
<property name="autoFillBackground">
<bool>true</bool>
</property>
</widget>
<widget class="SmartSlider" name="sliderGainA" native="true">
<property name="geometry">
<rect>
<x>40</x>
<y>180</y>
<width>171</width>
<height>321</height>
</rect>
</property>
<property name="autoFillBackground">
<bool>true</bool>
</property>
</widget>
<widget class="SmartSlider" name="sliderGainD" native="true">
<property name="geometry">
<rect>
<x>220</x>
<y>180</y>
<width>171</width>
<height>321</height>
</rect>
</property>
<property name="autoFillBackground">
<bool>true</bool>
</property>
</widget>
<widget class="SmartSlider" name="sliderGainS" native="true">
<property name="geometry">
<rect>
<x>400</x>
<y>180</y>
<width>171</width>
<height>321</height>
</rect>
</property>
<property name="autoFillBackground">
<bool>true</bool>
</property>
</widget>
</widget>
</widget>