Browse Source

v2.8.0: Add Bypass, Bandit and bugfixes (#55)

* Molten Bypass
  * Initial release
* EvenVCO
  * Complete re-write for better FM performance
  * Hard sync added
* Octaves 
  * Avoid allocation in the audio thread (thanks @danngreen)
* Noise Plethora
  * Fix labels
  * Avoid std::string allocations on audio thread (thanks @danngreen)
tags/v2.8.2
Ewan GitHub 5 months ago
parent
commit
a4d6bbe878
No known key found for this signature in database GPG Key ID: B5690EEEBB952194
18 changed files with 3670 additions and 186 deletions
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  2. +2
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      res/panels/Bypass.svg
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      src/Bandit.cpp
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      src/Bypass.cpp
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      src/EvenVCO.cpp
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      src/NoisePlethora.cpp
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      src/Octaves.cpp
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      src/noise-plethora/plugins/Banks.cpp
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      src/noise-plethora/plugins/Banks.hpp
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      src/noise-plethora/plugins/ProgramSelector.hpp
  17. +2
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      src/plugin.cpp
  18. +9
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      src/plugin.hpp

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CHANGELOG.md View File

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# Change Log

## v2.8.0
* Molten Bypass
* Initial release
* EvenVCO
* Complete re-write for better FM performance
* Hard sync added
* Octaves
* Avoid allocation in the audio thread (thanks @danngreen)
* Noise Plethora
* Fix labels
* Avoid std::string allocations on audio thread (thanks @danngreen)
## v2.7.1
* Midi Thing 2
* Remove -10 to 0 V configuration


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Makefile View File

@@ -6,3 +6,5 @@ SOURCES += $(wildcard src/noise-plethora/*/*.cpp)
DISTRIBUTABLES += $(wildcard LICENSE*) res

include $(RACK_DIR)/plugin.mk

CXXFLAGS += -std=c++17

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docs/Oneiroi.md View File

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# Befaco Oneiroi

Based on [Befaco Oneiroi](http://www.befaco.org/oneiroi) Eurorack module. For the official manual, see [here](https://befaco.org/docs/Oneiroi/Oneiroi_User_Manual.pdf).


## Differences with hardware

* Randomisation can optionally be applied to every parameter using the built in VCV randomisation
* Input gain switch (available on hardware) has been removed as this makes no sense in VCV
* Undo/redo is natively handled by VCV Rack
* .wav files can be loaded from the context menu (naive loading no sample rate conversion!)
* Additional LED indicators have been added for filter type, filter position, modulation type and oscillator octave
* Distinct virtual knobs are used for each parameter so parameter catch-up (used on hardware) is not needed.
* As yet, slew of parameter values on randomize is not supported

![Oneiroi](img/Oneiroi.png)

BIN
docs/img/Oneiroi.png View File

Before After
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plugin.json View File

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{
"slug": "Befaco",
"version": "2.7.1",
"version": "2.8.0",
"license": "GPL-3.0-or-later",
"name": "Befaco",
"brand": "Befaco",
@@ -314,7 +314,7 @@
"description": "An accurate voltage source and precision adder.",
"manualUrl": "https://www.befaco.org/voltio/",
"modularGridUrl": "https://www.modulargrid.net/e/befaco-voltio",
"tags": [
"tags": [
"Hardware clone",
"Polyphonic",
"Utility"
@@ -331,6 +331,32 @@
"Oscillator",
"Polyphonic"
]
},
{
"slug": "Bypass",
"name": "Bypass",
"description": "A Stereo bypass module to gate control the send of your signals to your favorite effect!",
"manualUrl": "https://www.befaco.org/molten-bypass/",
"modularGridUrl": "https://www.modulargrid.net/e/befaco-molten-bypass",
"tags": [
"Hardware clone",
"Mixer",
"Polyphonic",
"Utility"
]
},
{
"slug": "Bandit",
"name": "Bandit",
"description": "A spectral processing playground.",
"tags": [
"Equalizer",
"Filter",
"Hardware clone",
"Mixer",
"Polyphonic",
"Utility"
]
}
]
}
}

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res/panels/Bandit.svg
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res/panels/Bypass.svg
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src/Bandit.cpp View File

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#include "plugin.hpp"

using namespace simd;

struct Bandit : Module {
enum ParamId {
LOW_GAIN_PARAM,
LOW_MID_GAIN_PARAM,
HIGH_MID_GAIN_PARAM,
HIGH_GAIN_PARAM,
PARAMS_LEN
};
enum InputId {
LOW_INPUT,
LOW_MID_INPUT,
HIGH_MID_INPUT,
HIGH_INPUT,
LOW_RETURN_INPUT,
LOW_MID_RETURN_INPUT,
HIGH_MID_RETURN_INPUT,
HIGH_RETURN_INPUT,
LOW_CV_INPUT,
LOW_MID_CV_INPUT,
HIGH_MID_CV_INPUT,
HIGH_CV_INPUT,
ALL_INPUT,
ALL_CV_INPUT,
INPUTS_LEN
};
enum OutputId {
LOW_OUTPUT,
LOW_MID_OUTPUT,
HIGH_MID_OUTPUT,
HIGH_OUTPUT,
MIX_OUTPUT,
OUTPUTS_LEN
};
enum LightId {
ENUMS(MIX_CLIP_LIGHT, 3),
ENUMS(MIX_LIGHT, 3),
LIGHTS_LEN
};

// float_4 * [4] give 16 polyphony channels, [2] is for cascading biquads
dsp::TBiquadFilter<float_4> filterLow[4][2], filterLowMid[4][2], filterHighMid[4][2], filterHigh[4][2];
float clipTimer = 0.f;
const float clipTime = 0.25f;
dsp::ClockDivider ledUpdateClock;
const int ledUpdateRate = 64;
bool applySaturation = true;

Bandit() {
config(PARAMS_LEN, INPUTS_LEN, OUTPUTS_LEN, LIGHTS_LEN);
auto lowGainParam = configParam(LOW_GAIN_PARAM, 0.f, 1.f, 0.75f, "Low gain");
lowGainParam->description = "Lowpass <300 Hz";
auto lowMidGainParam = configParam(LOW_MID_GAIN_PARAM, 0.f, 1.f, 0.75f, "Low mid gain");
lowMidGainParam->description = "Bandpass ~750 Hz";
auto highMidGainParam = configParam(HIGH_MID_GAIN_PARAM, 0.f, 1.f, 0.75f, "High mid gain");
highMidGainParam->description = "Bandpass ~1.5 kHz";
auto highGainParam = configParam(HIGH_GAIN_PARAM, 0.f, 1.f, 0.75f, "High gain");
highGainParam->description = "Highpass >3 kHz";

// band inputs
configInput(LOW_INPUT, "Low");
configInput(LOW_MID_INPUT, "Low mid");
configInput(HIGH_MID_INPUT, "High mid");
configInput(HIGH_INPUT, "High");

// band send outputs
auto outLowSend = configOutput(LOW_OUTPUT, "Low");
outLowSend->description = "Normalled to Low band return";
auto outLowMidSend = configOutput(LOW_MID_OUTPUT, "Low mid");
outLowMidSend->description = "Normalled to Low Mid band return";
auto outHighMidSend = configOutput(HIGH_MID_OUTPUT, "High mid");
outHighMidSend->description = "Normalled to High Mid band return";
auto outHighSend = configOutput(HIGH_OUTPUT, "High");
outHighSend->description = "Normalled to High band return";

// band return inputs
configInput(LOW_RETURN_INPUT, "Low return");
configInput(LOW_MID_RETURN_INPUT, "Low mid return");
configInput(HIGH_MID_RETURN_INPUT, "High mid return");
configInput(HIGH_RETURN_INPUT, "High return");

// band gain CVs
configInput(LOW_CV_INPUT, "Low CV");
configInput(LOW_MID_CV_INPUT, "Low mid CV");
configInput(HIGH_MID_CV_INPUT, "High mid CV");
configInput(HIGH_CV_INPUT, "High CV");
configInput(ALL_INPUT, "All");
auto allCvInput = configInput(ALL_CV_INPUT, "All CV");
allCvInput->description = "Mix VCA, 10V to fully open";

// mix out
configOutput(MIX_OUTPUT, "Mix");

ledUpdateClock.setDivision(ledUpdateRate);
}

void onSampleRateChange() override {
const float sr = APP->engine->getSampleRate();
const float lowFc = 300.f / sr;
const float lowMidFc = 750.f / sr;
const float highMidFc = 1500.f / sr;
const float highFc = 3800.f / sr;
// Qs for cascaded biquads to get Butterworth response, see https://www.earlevel.com/main/2016/09/29/cascading-filters/
// technically only for LOWPASS and HIGHPASS, but seems to work well for BANDPASS too
const float Q[2] = {0.54119610f, 1.3065630f};
const float V = 1.f;

for (int i = 0; i < 4; ++i) {
for (int stage = 0; stage < 2; ++stage) {
filterLow[i][stage].setParameters(dsp::TBiquadFilter<float_4>::Type::LOWPASS, lowFc, Q[stage], V);
filterLowMid[i][stage].setParameters(dsp::TBiquadFilter<float_4>::Type::BANDPASS, lowMidFc, Q[stage], V);
filterHighMid[i][stage].setParameters(dsp::TBiquadFilter<float_4>::Type::BANDPASS, highMidFc, Q[stage], V);
filterHigh[i][stage].setParameters(dsp::TBiquadFilter<float_4>::Type::HIGHPASS, highFc, Q[stage], V);
}
}
}

void processBypass(const ProcessArgs& args) override {
const int maxPolyphony = std::max({1, inputs[ALL_INPUT].getChannels(), inputs[LOW_INPUT].getChannels(),
inputs[LOW_MID_INPUT].getChannels(), inputs[HIGH_MID_INPUT].getChannels(),
inputs[HIGH_INPUT].getChannels()});


for (int c = 0; c < maxPolyphony; c += 4) {
const float_4 inLow = inputs[LOW_INPUT].getPolyVoltageSimd<float_4>(c);
const float_4 inLowMid = inputs[LOW_MID_INPUT].getPolyVoltageSimd<float_4>(c);
const float_4 inHighMid = inputs[HIGH_MID_INPUT].getPolyVoltageSimd<float_4>(c);
const float_4 inHigh = inputs[HIGH_INPUT].getPolyVoltageSimd<float_4>(c);
const float_4 inAll = inputs[ALL_INPUT].getPolyVoltageSimd<float_4>(c);

// bypass sums all inputs to the output
outputs[MIX_OUTPUT].setVoltageSimd<float_4>(inLow + inLowMid + inHighMid + inHigh + inAll, c);
}

outputs[MIX_OUTPUT].setChannels(maxPolyphony);
}


void process(const ProcessArgs& args) override {

const int maxPolyphony = std::max({1, inputs[ALL_INPUT].getChannels(), inputs[LOW_INPUT].getChannels(),
inputs[LOW_MID_INPUT].getChannels(), inputs[HIGH_MID_INPUT].getChannels(),
inputs[HIGH_INPUT].getChannels()});

const bool allReturnsActiveAndMonophonic = inputs[LOW_RETURN_INPUT].isMonophonic() && inputs[LOW_MID_RETURN_INPUT].isMonophonic() &&
inputs[HIGH_MID_RETURN_INPUT].isMonophonic() && inputs[HIGH_RETURN_INPUT].isMonophonic();

float_4 mixOutput[4] = {};
for (int c = 0; c < maxPolyphony; c += 4) {

const float_4 inLow = inputs[LOW_INPUT].getPolyVoltageSimd<float_4>(c);
const float_4 inLowMid = inputs[LOW_MID_INPUT].getPolyVoltageSimd<float_4>(c);
const float_4 inHighMid = inputs[HIGH_MID_INPUT].getPolyVoltageSimd<float_4>(c);
const float_4 inHigh = inputs[HIGH_INPUT].getPolyVoltageSimd<float_4>(c);
const float_4 inAll = inputs[ALL_INPUT].getPolyVoltageSimd<float_4>(c);

const float_4 lowGain = params[LOW_GAIN_PARAM].getValue() * clamp(inputs[LOW_CV_INPUT].getNormalPolyVoltageSimd<float_4>(10.f, c) / 10.f, 0.f, 1.f);
const float_4 outLow = 0.7 * 2 * filterLow[c / 4][1].process(filterLow[c / 4][0].process((inLow + inAll) * lowGain));
outputs[LOW_OUTPUT].setVoltageSimd<float_4>(outLow, c);

const float_4 lowMidGain = params[LOW_MID_GAIN_PARAM].getValue() * clamp(inputs[LOW_MID_CV_INPUT].getNormalPolyVoltageSimd<float_4>(10.f, c) / 10.f, 0.f, 1.f);
const float_4 outLowMid = 2 * filterLowMid[c / 4][1].process(filterLowMid[c / 4][0].process((inLowMid + inAll) * lowMidGain));
outputs[LOW_MID_OUTPUT].setVoltageSimd<float_4>(outLowMid, c);

const float_4 highMidGain = params[HIGH_MID_GAIN_PARAM].getValue() * clamp(inputs[HIGH_MID_CV_INPUT].getNormalPolyVoltageSimd<float_4>(10.f, c) / 10.f, 0.f, 1.f);
const float_4 outHighMid = 2 * filterHighMid[c / 4][1].process(filterHighMid[c / 4][0].process((inHighMid + inAll) * highMidGain));
outputs[HIGH_MID_OUTPUT].setVoltageSimd<float_4>(outHighMid, c);

const float_4 highGain = params[HIGH_GAIN_PARAM].getValue() * clamp(inputs[HIGH_CV_INPUT].getNormalPolyVoltageSimd<float_4>(10.f, c) / 10.f, 0.f, 1.f);
const float_4 outHigh = 0.7 * 2 * filterHigh[c / 4][1].process(filterHigh[c / 4][0].process((inHigh + inAll) * highGain));
outputs[HIGH_OUTPUT].setVoltageSimd<float_4>(outHigh, c);

// the fx return input is normalled to the fx send output
mixOutput[c / 4] = inputs[LOW_RETURN_INPUT].getNormalPolyVoltageSimd<float_4>(outLow * !outputs[LOW_OUTPUT].isConnected(), c);
mixOutput[c / 4] += inputs[LOW_MID_RETURN_INPUT].getNormalPolyVoltageSimd<float_4>(outLowMid * !outputs[LOW_MID_OUTPUT].isConnected(), c);
mixOutput[c / 4] += inputs[HIGH_MID_RETURN_INPUT].getNormalPolyVoltageSimd<float_4>(outHighMid * !outputs[HIGH_MID_OUTPUT].isConnected(), c);
mixOutput[c / 4] += inputs[HIGH_RETURN_INPUT].getNormalPolyVoltageSimd<float_4>(outHigh * !outputs[HIGH_OUTPUT].isConnected(), c);
mixOutput[c / 4] = mixOutput[c / 4] * clamp(inputs[ALL_CV_INPUT].getNormalPolyVoltageSimd<float_4>(10.f, c) / 10.f, 0.f, 1.f);

if (applySaturation) {
mixOutput[c / 4] = Saturator<float_4>::process(mixOutput[c / 4] / 10.f) * 10.f;
}

outputs[MIX_OUTPUT].setVoltageSimd<float_4>(mixOutput[c / 4], c);
}

outputs[LOW_OUTPUT].setChannels(maxPolyphony);
outputs[LOW_MID_OUTPUT].setChannels(maxPolyphony);
outputs[HIGH_MID_OUTPUT].setChannels(maxPolyphony);
outputs[HIGH_OUTPUT].setChannels(maxPolyphony);

if (allReturnsActiveAndMonophonic) {
// special case: if all return paths are connected and monophonic, then output mix should be monophonic
outputs[MIX_OUTPUT].setChannels(1);
}
else {
// however, if it's a mix (some normalled from input, maybe some polyphonic), then it should be polyphonic
outputs[MIX_OUTPUT].setChannels(maxPolyphony);
}

if (ledUpdateClock.process()) {
processLEDs(mixOutput, args.sampleTime * ledUpdateRate);
}
}

void processLEDs(const float_4* output, const float sampleTime) {

const int maxPolyphony = outputs[MIX_OUTPUT].getChannels();

if (maxPolyphony == 1) {
const float rmsOut = std::fabs(output[0][0]);
lights[MIX_LIGHT + 0].setBrightness(0.f);
lights[MIX_LIGHT + 1].setBrightnessSmooth(rmsOut / 5.f, sampleTime);
lights[MIX_LIGHT + 2].setBrightness(0.f);

if (rmsOut > 10.f) {
clipTimer = clipTime;
}

const bool clip = clipTimer > 0.f;
if (clip) {
clipTimer -= sampleTime;
}

lights[MIX_CLIP_LIGHT + 0].setBrightnessSmooth(clip, sampleTime);
lights[MIX_CLIP_LIGHT + 1].setBrightness(0.f);
lights[MIX_CLIP_LIGHT + 2].setBrightness(0.f);
}
else {

float maxRmsOut = 0.f;
for (int c = 0; c < maxPolyphony; c++) {
maxRmsOut = std::max(maxRmsOut, std::fabs(output[c / 4][c % 4]));
}

lights[MIX_LIGHT + 0].setBrightness(0.f);
lights[MIX_LIGHT + 1].setBrightness(0.f);
lights[MIX_LIGHT + 2].setBrightnessSmooth(maxRmsOut / 5.f, sampleTime);

// if any channel peaks above 10V, turn the clip light on for the next clipTime seconds
if (maxRmsOut > 10.f) {
clipTimer = clipTime;
}

const bool clip = clipTimer > 0.f;
if (clip) {
clipTimer -= sampleTime;
}
lights[MIX_CLIP_LIGHT + 0].setBrightnessSmooth(clip, sampleTime);
lights[MIX_CLIP_LIGHT + 1].setBrightness(0.f);
lights[MIX_CLIP_LIGHT + 2].setBrightness(0.f);
}
}

void dataFromJson(json_t* rootJ) override {
json_t* applySaturationJ = json_object_get(rootJ, "applySaturation");
if (applySaturationJ) {
applySaturation = json_boolean_value(applySaturationJ);
}
}

json_t* dataToJson() override {
json_t* rootJ = json_object();
json_object_set_new(rootJ, "applySaturation", json_boolean(applySaturation));

return rootJ;
}
};


struct BanditWidget : ModuleWidget {
BanditWidget(Bandit* module) {
setModule(module);
setPanel(createPanel(asset::plugin(pluginInstance, "res/panels/Bandit.svg")));

addChild(createWidget<Knurlie>(Vec(RACK_GRID_WIDTH, 0)));
addChild(createWidget<Knurlie>(Vec(RACK_GRID_WIDTH, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));

addParam(createParam<BefacoSlidePot>(mm2px(Vec(3.062, 51.365)), module, Bandit::LOW_GAIN_PARAM));
addParam(createParam<BefacoSlidePot>(mm2px(Vec(13.23, 51.365)), module, Bandit::LOW_MID_GAIN_PARAM));
addParam(createParam<BefacoSlidePot>(mm2px(Vec(23.398, 51.365)), module, Bandit::HIGH_MID_GAIN_PARAM));
addParam(createParam<BefacoSlidePot>(mm2px(Vec(33.566, 51.365)), module, Bandit::HIGH_GAIN_PARAM));

addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(5.038, 14.5)), module, Bandit::LOW_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(15.178, 14.5)), module, Bandit::LOW_MID_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(25.253, 14.5)), module, Bandit::HIGH_MID_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(35.328, 14.5)), module, Bandit::HIGH_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(5.045, 40.34)), module, Bandit::LOW_RETURN_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(15.118, 40.34)), module, Bandit::LOW_MID_RETURN_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(25.19, 40.338)), module, Bandit::HIGH_MID_RETURN_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(35.263, 40.34)), module, Bandit::HIGH_RETURN_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(5.038, 101.229)), module, Bandit::LOW_CV_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(15.113, 101.229)), module, Bandit::LOW_MID_CV_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(25.187, 101.231)), module, Bandit::HIGH_MID_CV_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(35.263, 101.229)), module, Bandit::HIGH_CV_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(10.075, 113.502)), module, Bandit::ALL_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(20.15, 113.5)), module, Bandit::ALL_CV_INPUT));

addOutput(createOutputCentered<BefacoOutputPort>(mm2px(Vec(5.045, 27.248)), module, Bandit::LOW_OUTPUT));
addOutput(createOutputCentered<BefacoOutputPort>(mm2px(Vec(15.118, 27.256)), module, Bandit::LOW_MID_OUTPUT));
addOutput(createOutputCentered<BefacoOutputPort>(mm2px(Vec(25.19, 27.256)), module, Bandit::HIGH_MID_OUTPUT));
addOutput(createOutputCentered<BefacoOutputPort>(mm2px(Vec(35.263, 27.256)), module, Bandit::HIGH_OUTPUT));
addOutput(createOutputCentered<BefacoOutputPort>(mm2px(Vec(30.225, 113.5)), module, Bandit::MIX_OUTPUT));

addChild(createLightCentered<MediumLight<RedGreenBlueLight>>(mm2px(Vec(37.781, 111.125)), module, Bandit::MIX_CLIP_LIGHT));
addChild(createLightCentered<MediumLight<RedGreenBlueLight>>(mm2px(Vec(37.781, 115.875)), module, Bandit::MIX_LIGHT));
}

void appendContextMenu(Menu* menu) override {
Bandit* module = dynamic_cast<Bandit*>(this->module);
assert(module);

menu->addChild(new MenuSeparator());
menu->addChild(createBoolPtrMenuItem("Soft clip at ±10V", "", &module->applySaturation));

}
};

Model* modelBandit = createModel<Bandit, BanditWidget>("Bandit");

+ 283
- 0
src/Bypass.cpp View File

@@ -0,0 +1,283 @@
#include "plugin.hpp"

using namespace simd;

struct Bypass : Module {
enum ParamId {
MODE_PARAM,
FX_GAIN_PARAM,
LAUNCH_MODE_PARAM,
LAUNCH_BUTTON_PARAM,
SLEW_TIME_PARAM,
PARAMS_LEN
};
enum InputId {
IN_R_INPUT,
FROM_FX_L_INPUT,
FROM_FX_R_INPUT,
LAUNCH_INPUT,
IN_L_INPUT,
INPUTS_LEN
};
enum OutputId {
TO_FX_L_OUTPUT,
TO_FX_R_OUTPUT,
OUT_L_OUTPUT,
OUT_R_OUTPUT,
OUTPUTS_LEN
};
enum LightId {
LAUNCH_LED,
LIGHTS_LEN
};
enum LatchMode {
TOGGLE_MODE, // i.e. latch
MOMENTARY_MODE // i.e. gate
};
enum ReturnMode {
HARD_MODE,
SOFT_MODE
};
ReturnMode returnMode = ReturnMode::HARD_MODE;
ParamQuantity* launchParam, * slewTimeParam;
dsp::SchmittTrigger launchCvTrigger;
dsp::BooleanTrigger launchButtonTrigger;
dsp::BooleanTrigger latchTrigger;
dsp::SlewLimiter clickFilter;
bool launchButtonHeld = false;
bool applySaturation = true;
bool active = false;

struct GainParamQuantity : ParamQuantity {
std::string getDisplayValueString() override {
if (getValue() < 0.f) {
return string::f("%g dB", 30 * getValue());
}
else {
return string::f("%g dB", 12 * getValue());
}
}
};

Bypass() {
config(PARAMS_LEN, INPUTS_LEN, OUTPUTS_LEN, LIGHTS_LEN);
auto switchParam = configSwitch(MODE_PARAM, 0.f, 1.f, 0.f, "Return mode", {"Hard", "Soft"});
switchParam->description = "In hard mode, Bypass wil cut off any sound coming from the loop.\nWith soft mode, the FX return is still active giving you reverb tails, decaying delay taps etc.";
configParam<GainParamQuantity>(FX_GAIN_PARAM, -1.f, 1.f, 0.f, "FX return gain");
configSwitch(LAUNCH_MODE_PARAM, 0.f, 1.f, 0.f, "Launch Mode", {"Latch (Toggle)", "Gate (Momentary)"});
launchParam = configButton(LAUNCH_BUTTON_PARAM, "Launch");
slewTimeParam = configParam(SLEW_TIME_PARAM, .005f, 0.05f, 0.01f, "Slew time", "s");

configInput(IN_L_INPUT, "Left");
configInput(IN_R_INPUT, "Right");
configInput(FROM_FX_L_INPUT, "From FX L");
configInput(FROM_FX_R_INPUT, "From FX R");
configInput(LAUNCH_INPUT, "Launch");

configOutput(TO_FX_L_OUTPUT, "To FX L");
configOutput(TO_FX_R_OUTPUT, "To FX R");
configOutput(OUT_L_OUTPUT, "Left");
configOutput(OUT_R_OUTPUT, "Right");

configBypass(IN_L_INPUT, OUT_L_OUTPUT);
configBypass(IN_R_INPUT, OUT_R_OUTPUT);
}

void process(const ProcessArgs& args) override {

// slew time in secs (so take inverse for lambda)
clickFilter.rise = clickFilter.fall = 1.0 / params[SLEW_TIME_PARAM].getValue();

const int maxInputChannels = std::max({1, inputs[IN_L_INPUT].getChannels(), inputs[IN_R_INPUT].getChannels()});
const int maxFxReturnChannels = std::max({1, inputs[FROM_FX_L_INPUT].getChannels(), inputs[FROM_FX_R_INPUT].getChannels()});

const LatchMode latchMode = (LatchMode) params[LAUNCH_MODE_PARAM].getValue();
const ReturnMode returnMode = (ReturnMode) params[MODE_PARAM].getValue();


const bool launchCvTriggered = launchCvTrigger.process(inputs[LAUNCH_INPUT].getVoltage());
const bool launchButtonPressed = launchButtonTrigger.process(launchButtonHeld);

// logical or (high if either high)
const float launchValue = std::max(launchCvTrigger.isHigh(), launchButtonTrigger.isHigh());
if (latchMode == LatchMode::TOGGLE_MODE) {
const bool risingEdge = launchCvTriggered || launchButtonPressed;

if (risingEdge) {
active = !active;
}
}

// FX send section
const float sendActive = clickFilter.process(args.sampleTime, (latchMode == LatchMode::TOGGLE_MODE) ? active : launchValue);
for (int c = 0; c < maxInputChannels; c += 4) {
const float_4 inL = inputs[IN_L_INPUT].getPolyVoltageSimd<float_4>(c);
const float_4 inR = inputs[IN_R_INPUT].getNormalPolyVoltageSimd<float_4>(inL, c);

// we start be assuming that FXs can be polyphonic, but recognise that often they are not
outputs[TO_FX_L_OUTPUT].setVoltageSimd<float_4>(inL * sendActive, c);
outputs[TO_FX_R_OUTPUT].setVoltageSimd<float_4>(inR * sendActive, c);
}
// fx send polyphony is set by input polyphony
outputs[TO_FX_L_OUTPUT].setChannels(maxInputChannels);
outputs[TO_FX_R_OUTPUT].setChannels(maxInputChannels);


// FX return section
const float gainTaper = params[FX_GAIN_PARAM].getValue() < 0.f ? 30 * params[FX_GAIN_PARAM].getValue() : params[FX_GAIN_PARAM].getValue() * 12;
const float fxReturnGain = std::pow(10, gainTaper / 20.0f);
float_4 dryLeft, dryRight, outL, outR;
for (int c = 0; c < maxFxReturnChannels; c += 4) {

const bool fxMonophonic = (maxInputChannels == 1);
if (fxMonophonic) {
// if the return fx is monophonic, mix down dry inputs to monophonic also
dryLeft = inputs[IN_L_INPUT].getVoltageSum();
dryRight = inputs[IN_R_INPUT].isConnected() ? inputs[IN_R_INPUT].getVoltageSum() : inputs[IN_L_INPUT].getVoltageSum();
}
else {
// if the return fx is polyphonic, then we don't need to do anything special
dryLeft = inputs[IN_L_INPUT].getPolyVoltageSimd<float_4>(c);
dryRight = inputs[IN_R_INPUT].getNormalPolyVoltageSimd<float_4>(dryLeft, c);
}

const float_4 fxLeftReturn = fxReturnGain * inputs[FROM_FX_L_INPUT].getPolyVoltageSimd<float_4>(c);
const float_4 fxRightReturn = fxReturnGain * inputs[FROM_FX_R_INPUT].getPolyVoltageSimd<float_4>(c);

if (returnMode == ReturnMode::HARD_MODE) {
outL = dryLeft * (1 - sendActive) + sendActive * fxLeftReturn;
outR = dryRight * (1 - sendActive) + sendActive * fxRightReturn;
}
else {
outL = dryLeft * (1 - sendActive) + fxLeftReturn;
outR = dryRight * (1 - sendActive) + fxRightReturn;
}

if (applySaturation) {
outL = Saturator<float_4>::process(outL / 10.f) * 10.f;
outR = Saturator<float_4>::process(outR / 10.f) * 10.f;
}

outputs[OUT_L_OUTPUT].setVoltageSimd<float_4>(outL, c);
outputs[OUT_R_OUTPUT].setVoltageSimd<float_4>(outR, c);
}

// output polyphony is set by fx return polyphony
outputs[OUT_L_OUTPUT].setChannels(maxFxReturnChannels);
outputs[OUT_R_OUTPUT].setChannels(maxFxReturnChannels);

lights[LAUNCH_LED].setSmoothBrightness(sendActive, args.sampleTime);
}

void dataFromJson(json_t* rootJ) override {
json_t* applySaturationJ = json_object_get(rootJ, "applySaturation");
if (applySaturationJ) {
applySaturation = json_boolean_value(applySaturationJ);
}

json_t* activeJ = json_object_get(rootJ, "active");
if (activeJ) {
active = json_boolean_value(activeJ);
}
}

json_t* dataToJson() override {
json_t* rootJ = json_object();

json_object_set_new(rootJ, "applySaturation", json_boolean(applySaturation));
json_object_set_new(rootJ, "active", json_boolean(active));

return rootJ;
}
};

/** From VCV Free */
struct VCVBezelBig : app::SvgSwitch {
VCVBezelBig() {
addFrame(Svg::load(asset::plugin(pluginInstance, "res/components/VCVBezelBig.svg")));
}
};

template <typename TBase>
struct VCVBezelLightBig : TBase {
VCVBezelLightBig() {
this->borderColor = color::WHITE_TRANSPARENT;
this->bgColor = color::WHITE_TRANSPARENT;
this->box.size = mm2px(math::Vec(11, 11));
}
};

struct RecordButton : LightButton<VCVBezelBig, VCVBezelLightBig<RedLight>> {
// Instead of using onAction() which is called on mouse up, handle on mouse down
void onDragStart(const event::DragStart& e) override {
Bypass* module = dynamic_cast<Bypass*>(this->module);
if (e.button == GLFW_MOUSE_BUTTON_LEFT) {
if (module) {
module->launchButtonHeld = true;
}
}

LightButton::onDragStart(e);
}

void onDragEnd(const event::DragEnd& e) override {
Bypass* module = dynamic_cast<Bypass*>(this->module);
if (e.button == GLFW_MOUSE_BUTTON_LEFT) {
if (module) {
module->launchButtonHeld = false;
}
}
}
};

struct BypassWidget : ModuleWidget {

SvgSwitch* launchParam;

BypassWidget(Bypass* module) {
setModule(module);
setPanel(createPanel(asset::plugin(pluginInstance, "res/panels/Bypass.svg")));

addChild(createWidget<Knurlie>(Vec(RACK_GRID_WIDTH, 0)));
addChild(createWidget<Knurlie>(Vec(RACK_GRID_WIDTH, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));

addParam(createParam<CKSSHoriz2>(mm2px(Vec(6.7, 63.263)), module, Bypass::MODE_PARAM));
addParam(createParamCentered<BefacoTinyKnobWhite>(mm2px(Vec(10.0, 78.903)), module, Bypass::FX_GAIN_PARAM));
addParam(createParam<CKSSNarrow>(mm2px(Vec(13.8, 91.6)), module, Bypass::LAUNCH_MODE_PARAM));

launchParam = createLightParamCentered<RecordButton>(mm2px(Vec(10.0, 111.287)), module, Bypass::LAUNCH_BUTTON_PARAM, Bypass::LAUNCH_LED);
addParam(launchParam);

addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(15.016, 15.03)), module, Bypass::IN_R_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(4.947, 40.893)), module, Bypass::FROM_FX_L_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(15.001, 40.893)), module, Bypass::FROM_FX_R_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(6.648, 95.028)), module, Bypass::LAUNCH_INPUT));
addInput(createInputCentered<BefacoInputPort>(mm2px(Vec(4.947, 15.03)), module, Bypass::IN_L_INPUT));

addOutput(createOutputCentered<BefacoOutputPort>(mm2px(Vec(4.957, 27.961)), module, Bypass::TO_FX_L_OUTPUT));
addOutput(createOutputCentered<BefacoOutputPort>(mm2px(Vec(14.957, 27.961)), module, Bypass::TO_FX_R_OUTPUT));
addOutput(createOutputCentered<BefacoOutputPort>(mm2px(Vec(4.947, 53.846)), module, Bypass::OUT_L_OUTPUT));
addOutput(createOutputCentered<BefacoOutputPort>(mm2px(Vec(14.957, 53.824)), module, Bypass::OUT_R_OUTPUT));
}

// for context menu
struct SlewTimeSider : ui::Slider {
explicit SlewTimeSider(ParamQuantity* q_) {
quantity = q_;
this->box.size.x = 200.0f;
}
};

void appendContextMenu(Menu* menu) override {
Bypass* module = dynamic_cast<Bypass*>(this->module);
assert(module);

menu->addChild(new MenuSeparator());
menu->addChild(createBoolPtrMenuItem("Soft clip at ±10V", "", &module->applySaturation));
menu->addChild(new SlewTimeSider(module->slewTimeParam));

}
};


Model* modelBypass = createModel<Bypass, BypassWidget>("Bypass");

+ 186
- 135
src/EvenVCO.cpp View File

@@ -1,4 +1,5 @@
#include "plugin.hpp"
#include "ChowDSP.hpp"

using simd::float_4;

@@ -26,20 +27,11 @@ struct EvenVCO : Module {
NUM_OUTPUTS
};

float_4 phase[4] = {};
float_4 tri[4] = {};

/** The value of the last sync input */
float sync = 0.0;
/** The outputs */
/** Whether we are past the pulse width already */
bool halfPhase[PORT_MAX_CHANNELS] = {};
float_4 phase[4] = {};
dsp::TSchmittTrigger<float_4> syncTrigger[4];
bool removePulseDC = true;

dsp::MinBlepGenerator<16, 32> triSquareMinBlep[PORT_MAX_CHANNELS];
dsp::MinBlepGenerator<16, 32> doubleSawMinBlep[PORT_MAX_CHANNELS];
dsp::MinBlepGenerator<16, 32> sawMinBlep[PORT_MAX_CHANNELS];
dsp::MinBlepGenerator<16, 32> squareMinBlep[PORT_MAX_CHANNELS];
bool limitPW = true;

EvenVCO() {
config(NUM_PARAMS, NUM_INPUTS, NUM_OUTPUTS);
@@ -51,7 +43,7 @@ struct EvenVCO : Module {
configInput(PITCH1_INPUT, "Pitch 1");
configInput(PITCH2_INPUT, "Pitch 2");
configInput(FM_INPUT, "FM");
configInput(SYNC_INPUT, "Sync (not implemented)");
configInput(SYNC_INPUT, "Sync");
configInput(PWM_INPUT, "Pulse Width Modulation");

configOutput(TRI_OUTPUT, "Triangle");
@@ -59,157 +51,191 @@ struct EvenVCO : Module {
configOutput(EVEN_OUTPUT, "Even");
configOutput(SAW_OUTPUT, "Sawtooth");
configOutput(SQUARE_OUTPUT, "Square");

// calculate up/downsampling rates
onSampleRateChange();
}

void process(const ProcessArgs& args) override {
void onSampleRateChange() override {
float sampleRate = APP->engine->getSampleRate();
for (int i = 0; i < NUM_OUTPUTS; ++i) {
for (int c = 0; c < 4; c++) {
oversampler[i][c].setOversamplingIndex(oversamplingIndex);
oversampler[i][c].reset(sampleRate);
}
}

int channels_pitch1 = inputs[PITCH1_INPUT].getChannels();
int channels_pitch2 = inputs[PITCH2_INPUT].getChannels();
const float lowFreqRegime = oversampler[0][0].getOversamplingRatio() * 1e-3 * sampleRate;
DEBUG("Low freq regime: %g", lowFreqRegime);
}

int channels = 1;
channels = std::max(channels, channels_pitch1);
channels = std::max(channels, channels_pitch2);
float_4 aliasSuppressedTri(float_4* phases) {
float_4 triBuffer[3];
for (int i = 0; i < 3; ++i) {
float_4 p = 2 * phases[i] - 1.0; // range -1.0 to +1.0
float_4 s = 0.5 - simd::abs(p); // eq 30
triBuffer[i] = (s * s * s - 0.75 * s) / 3.0; // eq 29
}
return (triBuffer[0] - 2.0 * triBuffer[1] + triBuffer[2]);
}

float pitch_0 = 1.f + std::round(params[OCTAVE_PARAM].getValue()) + params[TUNE_PARAM].getValue() / 12.f;
float_4 aliasSuppressedSaw(float_4* phases) {
float_4 sawBuffer[3];
for (int i = 0; i < 3; ++i) {
float_4 p = 2 * phases[i] - 1.0; // range -1 to +1
sawBuffer[i] = (p * p * p - p) / 6.0; // eq 11
}

// Compute frequency, pitch is 1V/oct
float_4 pitch[4] = {};
for (int c = 0; c < channels; c += 4)
pitch[c / 4] = pitch_0;
return (sawBuffer[0] - 2.0 * sawBuffer[1] + sawBuffer[2]);
}

if (inputs[PITCH1_INPUT].isConnected()) {
for (int c = 0; c < channels; c += 4)
pitch[c / 4] += inputs[PITCH1_INPUT].getPolyVoltageSimd<float_4>(c);
float_4 aliasSuppressedDoubleSaw(float_4* phases) {
float_4 sawBuffer[3];
for (int i = 0; i < 3; ++i) {
float_4 p = 4.0 * simd::ifelse(phases[i] < 0.5, phases[i], phases[i] - 0.5) - 1.0;
sawBuffer[i] = (p * p * p - p) / 24.0; // eq 11 (modified for doubled freq)
}

if (inputs[PITCH2_INPUT].isConnected()) {
for (int c = 0; c < channels; c += 4)
pitch[c / 4] += inputs[PITCH2_INPUT].getPolyVoltageSimd<float_4>(c);
}
return (sawBuffer[0] - 2.0 * sawBuffer[1] + sawBuffer[2]);
}

if (inputs[FM_INPUT].isConnected()) {
for (int c = 0; c < channels; c += 4)
pitch[c / 4] += inputs[FM_INPUT].getPolyVoltageSimd<float_4>(c) / 4.f;
}
float_4 aliasSuppressedOffsetSaw(float_4* phases, float_4 pw) {
float_4 sawOffsetBuff[3];

float_4 freq[4] = {};
for (int c = 0; c < channels; c += 4) {
freq[c / 4] = dsp::FREQ_C4 * simd::pow(2.f, pitch[c / 4]);
freq[c / 4] = clamp(freq[c / 4], 0.f, 20000.f);
for (int i = 0; i < 3; ++i) {
float_4 p = 2 * phases[i] - 1.0; // range -1 to +1
float_4 pwp = p + 2 * pw; // phase after pw (pw in [0, 1])
pwp += simd::ifelse(pwp > 1, -2, 0); // modulo on [-1, +1]
sawOffsetBuff[i] = (pwp * pwp * pwp - pwp) / 6.0; // eq 11
}
return (sawOffsetBuff[0] - 2.0 * sawOffsetBuff[1] + sawOffsetBuff[2]);
}

// Pulse width
float_4 pw[4] = {};
for (int c = 0; c < channels; c += 4)
pw[c / 4] = params[PWM_PARAM].getValue();
chowdsp::VariableOversampling<6, float_4> oversampler[NUM_OUTPUTS][4]; // uses a 2*6=12th order Butterworth filter
int oversamplingIndex = 2; // default is 2^oversamplingIndex == x4 oversampling

if (inputs[PWM_INPUT].isConnected()) {
for (int c = 0; c < channels; c += 4)
pw[c / 4] += inputs[PWM_INPUT].getPolyVoltageSimd<float_4>(c) / 5.f;
}
void process(const ProcessArgs& args) override {

// pitch inputs determine number of polyphony engines
const int channels = std::max({1, inputs[PITCH1_INPUT].getChannels(), inputs[PITCH2_INPUT].getChannels()});

const float pitchKnobs = 1.f + std::round(params[OCTAVE_PARAM].getValue()) + params[TUNE_PARAM].getValue() / 12.f;
const int oversamplingRatio = oversampler[0][0].getOversamplingRatio();

float_4 deltaPhase[4] = {};
float_4 oldPhase[4] = {};
for (int c = 0; c < channels; c += 4) {
pw[c / 4] = rescale(clamp(pw[c / 4], -1.0f, 1.0f), -1.0f, 1.0f, 0.05f, 1.0f - 0.05f);
float_4 pw = simd::clamp(params[PWM_PARAM].getValue() + inputs[PWM_INPUT].getPolyVoltageSimd<float_4>(c) / 5.f, -1.f, 1.f);
if (limitPW) {
pw = simd::rescale(pw, -1, +1, 0.05f, 0.95f);
}
else {
pw = simd::rescale(pw, -1.f, +1.f, 0.f, 1.f);
}

// Advance phase
deltaPhase[c / 4] = clamp(freq[c / 4] * args.sampleTime, 1e-6f, 0.5f);
oldPhase[c / 4] = phase[c / 4];
phase[c / 4] += deltaPhase[c / 4];
}
const float_4 fmVoltage = inputs[FM_INPUT].getPolyVoltageSimd<float_4>(c) * 0.25f;
const float_4 pitch = inputs[PITCH1_INPUT].getPolyVoltageSimd<float_4>(c) + inputs[PITCH2_INPUT].getPolyVoltageSimd<float_4>(c);
const float_4 freq = dsp::FREQ_C4 * simd::pow(2.f, pitchKnobs + pitch + fmVoltage);
const float_4 deltaBasePhase = simd::clamp(freq * args.sampleTime / oversamplingRatio, 1e-6, 0.5f);
// floating point arithmetic doesn't work well at low frequencies, specifically because the finite difference denominator
// becomes tiny - we check for that scenario and use naive / 1st order waveforms in that frequency regime (as aliasing isn't
// a problem there). With no oversampling, at 44100Hz, the threshold frequency is 44.1Hz.
const float_4 lowFreqRegime = simd::abs(deltaBasePhase) < 1e-3;
// 1 / denominator for the second-order FD
const float_4 denominatorInv = 0.25 / (deltaBasePhase * deltaBasePhase);

// the next block can't be done with SIMD instructions, but should at least be completed with
// blocks of 4 (otherwise popping artfifacts are generated from invalid phase/oldPhase/deltaPhase)
const int channelsRoundedUpNearestFour = (1 + (channels - 1) / 4) * 4;
for (int c = 0; c < channelsRoundedUpNearestFour; c++) {
// pulsewave waveform doesn't have DC even for non 50% duty cycles, but Befaco team would like the option
// for it to be added back in for hardware compatibility reasons
const float_4 pulseDCOffset = (!removePulseDC) * 2.f * (0.5f - pw);

if (oldPhase[c / 4].s[c % 4] < 0.5 && phase[c / 4].s[c % 4] >= 0.5) {
float crossing = -(phase[c / 4].s[c % 4] - 0.5) / deltaPhase[c / 4].s[c % 4];
triSquareMinBlep[c].insertDiscontinuity(crossing, 2.f);
doubleSawMinBlep[c].insertDiscontinuity(crossing, -2.f);
}
// hard sync
const float_4 syncMask = syncTrigger[c / 4].process(inputs[SYNC_INPUT].getPolyVoltageSimd<float_4>(c));
phase[c / 4] = simd::ifelse(syncMask, 0.5f, phase[c / 4]);

if (!halfPhase[c] && phase[c / 4].s[c % 4] >= pw[c / 4].s[c % 4]) {
float crossing = -(phase[c / 4].s[c % 4] - pw[c / 4].s[c % 4]) / deltaPhase[c / 4].s[c % 4];
squareMinBlep[c].insertDiscontinuity(crossing, 2.f);
halfPhase[c] = true;
}
float_4* osBufferTri = oversampler[TRI_OUTPUT][c / 4].getOSBuffer();
float_4* osBufferSaw = oversampler[SAW_OUTPUT][c / 4].getOSBuffer();
float_4* osBufferSin = oversampler[SINE_OUTPUT][c / 4].getOSBuffer();
float_4* osBufferSquare = oversampler[SQUARE_OUTPUT][c / 4].getOSBuffer();
float_4* osBufferEven = oversampler[EVEN_OUTPUT][c / 4].getOSBuffer();
for (int i = 0; i < oversamplingRatio; ++i) {

// Reset phase if at end of cycle
if (phase[c / 4].s[c % 4] >= 1.f) {
phase[c / 4].s[c % 4] -= 1.f;
float crossing = -phase[c / 4].s[c % 4] / deltaPhase[c / 4].s[c % 4];
triSquareMinBlep[c].insertDiscontinuity(crossing, -2.f);
doubleSawMinBlep[c].insertDiscontinuity(crossing, -2.f);
squareMinBlep[c].insertDiscontinuity(crossing, -2.f);
sawMinBlep[c].insertDiscontinuity(crossing, -2.f);
halfPhase[c] = false;
}
}
phase[c / 4] += deltaBasePhase;
// ensure within [0, 1]
phase[c / 4] -= simd::floor(phase[c / 4]);

float_4 triSquareMinBlepOut[4] = {};
float_4 doubleSawMinBlepOut[4] = {};
float_4 sawMinBlepOut[4] = {};
float_4 squareMinBlepOut[4] = {};

float_4 triSquare[4] = {};
float_4 sine[4] = {};
float_4 doubleSaw[4] = {};

float_4 even[4] = {};
float_4 saw[4] = {};
float_4 square[4] = {};
float_4 triOut[4] = {};

for (int c = 0; c < channelsRoundedUpNearestFour; c++) {
triSquareMinBlepOut[c / 4].s[c % 4] = triSquareMinBlep[c].process();
doubleSawMinBlepOut[c / 4].s[c % 4] = doubleSawMinBlep[c].process();
sawMinBlepOut[c / 4].s[c % 4] = sawMinBlep[c].process();
squareMinBlepOut[c / 4].s[c % 4] = squareMinBlep[c].process();
}
float_4 phases[3]; // phase as extrapolated to the current and two previous samples

for (int c = 0; c < channels; c += 4) {
phases[0] = phase[c / 4] - 2 * deltaBasePhase + simd::ifelse(phase[c / 4] < 2 * deltaBasePhase, 1.f, 0.f);
phases[1] = phase[c / 4] - deltaBasePhase + simd::ifelse(phase[c / 4] < deltaBasePhase, 1.f, 0.f);
phases[2] = phase[c / 4];

triSquare[c / 4] = simd::ifelse((phase[c / 4] < 0.5f), -1.f, +1.f);
triSquare[c / 4] += triSquareMinBlepOut[c / 4];
if (outputs[SINE_OUTPUT].isConnected() || outputs[EVEN_OUTPUT].isConnected()) {
// sin doesn't need PDW
osBufferSin[i] = -simd::cos(M_PI + 2.0 * M_PI * phase[c / 4]);
}

// Integrate square for triangle
if (outputs[TRI_OUTPUT].isConnected()) {
const float_4 dpwOrder1 = 1.0 - 2.0 * simd::abs(2 * phase[c / 4] - 1.0);
const float_4 dpwOrder3 = aliasSuppressedTri(phases) * denominatorInv;

tri[c / 4] += (4.f * triSquare[c / 4]) * (freq[c / 4] * args.sampleTime);
tri[c / 4] *= (1.f - 40.f * args.sampleTime);
triOut[c / 4] = 5.f * tri[c / 4];
osBufferTri[i] = -simd::ifelse(lowFreqRegime, dpwOrder1, dpwOrder3);
}

sine[c / 4] = 5.f * simd::cos(2 * M_PI * phase[c / 4]);
if (outputs[SAW_OUTPUT].isConnected()) {
const float_4 dpwOrder1 = 2 * phase[c / 4] - 1.0;
const float_4 dpwOrder3 = aliasSuppressedSaw(phases) * denominatorInv;

// minBlep adds a small amount of DC that becomes significant at higher frequencies,
// this subtracts DC based on empirical observvations about the scaling relationship
const float sawCorrect = -5.7;
const float_4 sawDCComp = deltaPhase[c / 4] * sawCorrect;
osBufferSaw[i] = simd::ifelse(lowFreqRegime, dpwOrder1, dpwOrder3);
}

doubleSaw[c / 4] = simd::ifelse((phase[c / 4] < 0.5), (-1.f + 4.f * phase[c / 4]), (-1.f + 4.f * (phase[c / 4] - 0.5f)));
doubleSaw[c / 4] += doubleSawMinBlepOut[c / 4];
doubleSaw[c / 4] += 2.f * sawDCComp;
doubleSaw[c / 4] *= 5.f;
if (outputs[SQUARE_OUTPUT].isConnected()) {

even[c / 4] = 0.55 * (doubleSaw[c / 4] + 1.27 * sine[c / 4]);
saw[c / 4] = -1.f + 2.f * phase[c / 4];
saw[c / 4] += sawMinBlepOut[c / 4];
saw[c / 4] += sawDCComp;
saw[c / 4] *= 5.f;
float_4 dpwOrder1 = simd::ifelse(phase[c / 4] < pw, -1.0, +1.0);
dpwOrder1 -= removePulseDC ? 2.f * (0.5f - pw) : 0.f;

square[c / 4] = simd::ifelse((phase[c / 4] < pw[c / 4]), -1.f, +1.f);
square[c / 4] += squareMinBlepOut[c / 4];
square[c / 4] += removePulseDC * 2.f * (pw[c / 4] - 0.5f);
square[c / 4] *= 5.f;
float_4 saw = aliasSuppressedSaw(phases);
float_4 sawOffset = aliasSuppressedOffsetSaw(phases, pw);
float_4 dpwOrder3 = (saw - sawOffset) * denominatorInv + pulseDCOffset;

// Set outputs
outputs[TRI_OUTPUT].setVoltageSimd(triOut[c / 4], c);
outputs[SINE_OUTPUT].setVoltageSimd(sine[c / 4], c);
outputs[EVEN_OUTPUT].setVoltageSimd(even[c / 4], c);
outputs[SAW_OUTPUT].setVoltageSimd(saw[c / 4], c);
outputs[SQUARE_OUTPUT].setVoltageSimd(square[c / 4], c);
}
osBufferSquare[i] = simd::ifelse(lowFreqRegime, dpwOrder1, dpwOrder3);
}

if (outputs[EVEN_OUTPUT].isConnected()) {

float_4 dpwOrder1 = 4.0 * simd::ifelse(phase[c / 4] < 0.5, phase[c / 4], phase[c / 4] - 0.5) - 1.0;
float_4 dpwOrder3 = aliasSuppressedDoubleSaw(phases) * denominatorInv;
float_4 doubleSaw = simd::ifelse(lowFreqRegime, dpwOrder1, dpwOrder3);
osBufferEven[i] = 0.55 * (doubleSaw + 1.27 * osBufferSin[i]);
}


} // end of oversampling loop

// downsample (if required)
if (outputs[SINE_OUTPUT].isConnected()) {
const float_4 outSin = (oversamplingRatio > 1) ? oversampler[SINE_OUTPUT][c / 4].downsample() : osBufferSin[0];
outputs[SINE_OUTPUT].setVoltageSimd(5.f * outSin, c);
}

if (outputs[TRI_OUTPUT].isConnected()) {
const float_4 outTri = (oversamplingRatio > 1) ? oversampler[TRI_OUTPUT][c / 4].downsample() : osBufferTri[0];
outputs[TRI_OUTPUT].setVoltageSimd(5.f * outTri, c);
}

if (outputs[SAW_OUTPUT].isConnected()) {
const float_4 outSaw = (oversamplingRatio > 1) ? oversampler[SAW_OUTPUT][c / 4].downsample() : osBufferSaw[0];
outputs[SAW_OUTPUT].setVoltageSimd(5.f * outSaw, c);
}

if (outputs[SQUARE_OUTPUT].isConnected()) {
const float_4 outSquare = (oversamplingRatio > 1) ? oversampler[SQUARE_OUTPUT][c / 4].downsample() : osBufferSquare[0];
outputs[SQUARE_OUTPUT].setVoltageSimd(5.f * outSquare, c);
}

if (outputs[EVEN_OUTPUT].isConnected()) {
const float_4 outEven = (oversamplingRatio > 1) ? oversampler[EVEN_OUTPUT][c / 4].downsample() : osBufferEven[0];
outputs[EVEN_OUTPUT].setVoltageSimd(5.f * outEven, c);
}

} // end of channels loop

// Outputs
outputs[TRI_OUTPUT].setChannels(channels);
@@ -223,6 +249,8 @@ struct EvenVCO : Module {
json_t* dataToJson() override {
json_t* rootJ = json_object();
json_object_set_new(rootJ, "removePulseDC", json_boolean(removePulseDC));
json_object_set_new(rootJ, "limitPW", json_boolean(limitPW));
json_object_set_new(rootJ, "oversamplingIndex", json_integer(oversampler[0][0].getOversamplingIndex()));
return rootJ;
}

@@ -231,6 +259,17 @@ struct EvenVCO : Module {
if (pulseDCJ) {
removePulseDC = json_boolean_value(pulseDCJ);
}

json_t* limitPWJ = json_object_get(rootJ, "limitPW");
if (limitPWJ) {
limitPW = json_boolean_value(limitPWJ);
}

json_t* oversamplingIndexJ = json_object_get(rootJ, "oversamplingIndex");
if (oversamplingIndexJ) {
oversamplingIndex = json_integer_value(oversamplingIndexJ);
onSampleRateChange();
}
}
};

@@ -269,10 +308,22 @@ struct EvenVCOWidget : ModuleWidget {

menu->addChild(new MenuSeparator());
menu->addChild(createSubmenuItem("Hardware compatibility", "",
[ = ](Menu * menu) {
[ = ](Menu * menu) {
menu->addChild(createBoolPtrMenuItem("Remove DC from pulse", "", &module->removePulseDC));
}
));
menu->addChild(createBoolPtrMenuItem("Limit pulsewidth (5\%-95\%)", "", &module->limitPW));
}
));

menu->addChild(createIndexSubmenuItem("Oversampling",
{"Off", "x2", "x4", "x8"},
[ = ]() {
return module->oversamplingIndex;
},
[ = ](int mode) {
module->oversamplingIndex = mode;
module->onSampleRateChange();
}
));
}
};



+ 33
- 28
src/NoisePlethora.cpp View File

@@ -160,8 +160,10 @@ struct NoisePlethora : Module {

// section A/B
bool bypassFilters = false;
std::shared_ptr<NoisePlethoraPlugin> algorithm[2]; // pointer to actual algorithm
std::string algorithmName[2]; // variable to cache which algorithm is active (after program CV applied)
std::shared_ptr<NoisePlethoraPlugin> algorithm[2]{nullptr, nullptr}; // pointer to actual algorithm
std::string_view algorithmName[2]{"", ""}; // variable to cache which algorithm is active (after program CV applied)
std::map<std::string_view, std::shared_ptr<NoisePlethoraPlugin>> A_algorithms{};
std::map<std::string_view, std::shared_ptr<NoisePlethoraPlugin>> B_algorithms{};

// filters for A/B
StateVariableFilter2ndOrder svfFilter[2];
@@ -195,11 +197,11 @@ struct NoisePlethora : Module {
configParam(Y_A_PARAM, 0.f, 1.f, 0.5f, "YA");
configParam(CUTOFF_CV_A_PARAM, 0.f, 1.f, 0.f, "Cutoff CV A");
configSwitch(FILTER_TYPE_A_PARAM, 0.f, 2.f, 0.f, "Filter type", {"Lowpass", "Bandpass", "Highpass"});
configParam(PROGRAM_PARAM, -INFINITY, +INFINITY, 0.f, "Program/Bank selection");
configParam(PROGRAM_PARAM, 0, 1, 0.f, "Program/Bank selection");
configSwitch(FILTER_TYPE_B_PARAM, 0.f, 2.f, 0.f, "Filter type", {"Lowpass", "Bandpass", "Highpass"});
configParam(CUTOFF_CV_B_PARAM, 0.f, 1.f, 0.f, "Cutoff B");
configParam(CUTOFF_CV_B_PARAM, 0.f, 1.f, 0.f, "Cutoff CV B");
configParam(X_B_PARAM, 0.f, 1.f, 0.5f, "XB");
configParam(CUTOFF_B_PARAM, 0.f, 1.f, 1.f, "Cutoff CV B");
configParam(CUTOFF_B_PARAM, 0.f, 1.f, 1.f, "Cutoff B");
configParam(RES_B_PARAM, 0.f, 1.f, 0.f, "Resonance B");
configParam(Y_B_PARAM, 0.f, 1.f, 0.5f, "YB");
configSwitch(FILTER_TYPE_C_PARAM, 0.f, 2.f, 0.f, "Filter type", {"Lowpass", "Bandpass", "Highpass"});
@@ -231,6 +233,11 @@ struct NoisePlethora : Module {
getInputInfo(PROG_A_INPUT)->description = "CV sums with active program (0.5V increments)";
getInputInfo(PROG_B_INPUT)->description = "CV sums with active program (0.5V increments)";

for (auto const &entry : MyFactory::Instance()->factoryFunctionRegistry) {
A_algorithms[entry.first] = MyFactory::Instance()->Create(entry.first);
B_algorithms[entry.first] = MyFactory::Instance()->Create(entry.first);
}

setAlgorithm(SECTION_B, "radioOhNo");
setAlgorithm(SECTION_A, "radioOhNo");
onSampleRateChange();
@@ -298,19 +305,19 @@ struct NoisePlethora : Module {
programSelectorWithCV.getSection(SECTION).setBank(bank);
programSelectorWithCV.getSection(SECTION).setProgram(programWithCV);

const std::string newAlgorithmName = programSelectorWithCV.getSection(SECTION).getCurrentProgramName();
std::string_view newAlgorithmName = programSelectorWithCV.getSection(SECTION).getCurrentProgramName();

// this is just a caching check to avoid constantly re-initialisating the algorithms
if (newAlgorithmName != algorithmName[SECTION]) {

algorithm[SECTION] = MyFactory::Instance()->Create(newAlgorithmName);
algorithm[SECTION] = SECTION == Section::SECTION_A ? A_algorithms[newAlgorithmName] : B_algorithms[newAlgorithmName];
algorithmName[SECTION] = newAlgorithmName;

if (algorithm[SECTION]) {
algorithm[SECTION]->init();
}
else {
DEBUG("WARNING: Failed to initialise %s in programSelector", newAlgorithmName.c_str());
DEBUG("WARNING: Failed to initialise %s in programSelector", newAlgorithmName.data());
}
}
}
@@ -433,25 +440,23 @@ struct NoisePlethora : Module {
void processProgramBankKnobLogic(const ProcessArgs& args) {

// program knob will either change program for current bank...
if (programButtonDragged) {
// work out the change (in discrete increments) since the program/bank knob started being dragged
const int delta = (int)(dialResolution * (params[PROGRAM_PARAM].getValue() - programKnobReferenceState));
{

if (programKnobMode == PROGRAM_MODE) {
const int numProgramsForCurrentBank = getBankForIndex(programSelector.getCurrent().getBank()).getSize();
const int currentProgram = programSelector.getCurrent().getProgram();
const int newProgramFromKnob = (int) std::round((numProgramsForCurrentBank - 1) * params[PROGRAM_PARAM].getValue());

if (delta != 0) {
const int newProgramFromKnob = unsigned_modulo(programSelector.getCurrent().getProgram() + delta, numProgramsForCurrentBank);
programKnobReferenceState = params[PROGRAM_PARAM].getValue();
if (newProgramFromKnob != currentProgram) {
setAlgorithmViaProgram(newProgramFromKnob);
}
}
// ...or change bank, (trying to) keep program the same
else {
const int currentBank = programSelector.getCurrent().getBank();
const int newBankFromKnob = (int) std::round((numBanks - 1) * params[PROGRAM_PARAM].getValue());

if (delta != 0) {
const int newBankFromKnob = unsigned_modulo(programSelector.getCurrent().getBank() + delta, numBanks);
programKnobReferenceState = params[PROGRAM_PARAM].getValue();
if (currentBank != newBankFromKnob) {
setAlgorithmViaBank(newBankFromKnob);
}
}
@@ -502,7 +507,7 @@ struct NoisePlethora : Module {
void setAlgorithmViaProgram(int newProgram) {

const int currentBank = programSelector.getCurrent().getBank();
const std::string algorithmName = getBankForIndex(currentBank).getProgramName(newProgram);
std::string_view algorithmName = getBankForIndex(currentBank).getProgramName(newProgram);
const int section = programSelector.getMode();

setAlgorithm(section, algorithmName);
@@ -513,13 +518,13 @@ struct NoisePlethora : Module {
const int currentProgram = programSelector.getCurrent().getProgram();
// the new bank may not have as many algorithms
const int currentProgramInNewBank = clamp(currentProgram, 0, getBankForIndex(newBank).getSize() - 1);
const std::string algorithmName = getBankForIndex(newBank).getProgramName(currentProgramInNewBank);
const std::string_view algorithmName = getBankForIndex(newBank).getProgramName(currentProgramInNewBank);
const int section = programSelector.getMode();

setAlgorithm(section, algorithmName);
}

void setAlgorithm(int section, std::string algorithmName) {
void setAlgorithm(int section, std::string_view algorithmName) {

if (section > 1) {
return;
@@ -537,7 +542,7 @@ struct NoisePlethora : Module {
}
}

DEBUG("WARNING: Didn't find %s in programSelector", algorithmName.c_str());
DEBUG("WARNING: Didn't find %s in programSelector", algorithmName.data());
}

void dataFromJson(json_t* rootJ) override {
@@ -565,8 +570,8 @@ struct NoisePlethora : Module {
json_t* dataToJson() override {
json_t* rootJ = json_object();

json_object_set_new(rootJ, "algorithmA", json_string(programSelector.getA().getCurrentProgramName().c_str()));
json_object_set_new(rootJ, "algorithmB", json_string(programSelector.getB().getCurrentProgramName().c_str()));
json_object_set_new(rootJ, "algorithmA", json_string(programSelector.getA().getCurrentProgramName().data()));
json_object_set_new(rootJ, "algorithmB", json_string(programSelector.getB().getCurrentProgramName().data()));

json_object_set_new(rootJ, "bypassFilters", json_boolean(bypassFilters));
json_object_set_new(rootJ, "blockDC", json_boolean(blockDC));
@@ -648,7 +653,7 @@ struct NoisePlethoraLEDDisplay : LightWidget {
}

void setTooltip() {
std::string activeName = module->programSelector.getSection(section).getCurrentProgramName();
std::string_view activeName = module->programSelector.getSection(section).getCurrentProgramName();
tooltip = new ui::Tooltip;
tooltip->text = activeName;
APP->scene->addChild(tooltip);
@@ -839,7 +844,7 @@ struct NoisePlethoraWidget : ModuleWidget {
menu->addChild(createSubmenuItem(string::f("Bank %d: %s", i + 1, bankAliases[i].c_str()), currentBank == i ? CHECKMARK_STRING : "", [ = ](Menu * menu) {
for (int j = 0; j < getBankForIndex(i).getSize(); ++j) {
const bool currentProgramAndBank = (currentProgram == j) && (currentBank == i);
const std::string algorithmName = getBankForIndex(i).getProgramName(j);
std::string_view algorithmName = getBankForIndex(i).getProgramName(j);

bool implemented = false;
for (auto item : MyFactory::Instance()->factoryFunctionRegistry) {
@@ -850,14 +855,14 @@ struct NoisePlethoraWidget : ModuleWidget {
}

if (implemented) {
menu->addChild(createMenuItem(algorithmName, currentProgramAndBank ? CHECKMARK_STRING : "",
menu->addChild(createMenuItem(algorithmName.data(), currentProgramAndBank ? CHECKMARK_STRING : "",
[ = ]() {
module->setAlgorithm(sectionId, algorithmName);
}));
}
else {
// placeholder text (greyed out)
menu->addChild(createMenuLabel(algorithmName));
menu->addChild(createMenuLabel(algorithmName.data()));
}
}
}));
@@ -874,4 +879,4 @@ struct NoisePlethoraWidget : ModuleWidget {
};


Model* modelNoisePlethora = createModel<NoisePlethora, NoisePlethoraWidget>("NoisePlethora");
Model* modelNoisePlethora = createModel<NoisePlethora, NoisePlethoraWidget>("NoisePlethora");

+ 17
- 17
src/Octaves.cpp View File

@@ -80,12 +80,12 @@ struct Octaves : Module {
configInput(VOCT2_INPUT, "V/Octave 2");
configInput(SYNC_INPUT, "Sync");
configInput(PWM_INPUT, "PWM");
configInput(GAIN_01F_INPUT, "Gain x1F CV");
configInput(GAIN_02F_INPUT, "Gain x1F CV");
configInput(GAIN_04F_INPUT, "Gain x1F CV");
configInput(GAIN_08F_INPUT, "Gain x1F CV");
configInput(GAIN_16F_INPUT, "Gain x1F CV");
configInput(GAIN_32F_INPUT, "Gain x1F CV");
configInput(GAIN_01F_INPUT, "Gain Fundamental CV");
configInput(GAIN_02F_INPUT, "Gain x2F CV");
configInput(GAIN_04F_INPUT, "Gain x4F CV");
configInput(GAIN_08F_INPUT, "Gain x8F CV");
configInput(GAIN_16F_INPUT, "Gain x16F CV");
configInput(GAIN_32F_INPUT, "Gain x32F CV");

configOutput(OUT_01F_OUTPUT, "x1F");
configOutput(OUT_02F_OUTPUT, "x2F");
@@ -115,12 +115,10 @@ struct Octaves : Module {
const int numActivePolyphonyEngines = getNumActivePolyphonyEngines();

// work out active outputs
const std::vector<int> connectedOutputs = getConnectedOutputs();
if (connectedOutputs.size() == 0) {
const int highestOutput = getMaxConnectedOutput();
if (highestOutput == -1) {
return;
}
// only process up to highest active channel
const int highestOutput = *std::max_element(connectedOutputs.begin(), connectedOutputs.end());

for (int c = 0; c < numActivePolyphonyEngines; c += 4) {

@@ -200,8 +198,10 @@ struct Octaves : Module {
}
} // end of polyphony loop

for (int connectedOutput : connectedOutputs) {
outputs[OUT_01F_OUTPUT + connectedOutput].setChannels(numActivePolyphonyEngines);
for (int c = 0; c < NUM_OUTPUTS; c++) {
if (outputs[OUT_01F_OUTPUT + c].isConnected()) {
outputs[OUT_01F_OUTPUT + c].setChannels(numActivePolyphonyEngines);
}
}
}

@@ -219,14 +219,14 @@ struct Octaves : Module {
return activePolyphonyEngines;
}

std::vector<int> getConnectedOutputs() {
std::vector<int> connectedOutputs;
int getMaxConnectedOutput() {
int maxChans = -1;
for (int c = 0; c < NUM_OUTPUTS; c++) {
if (outputs[OUT_01F_OUTPUT + c].isConnected()) {
connectedOutputs.push_back(c);
maxChans = c;
}
}
return connectedOutputs;
return maxChans;
}

json_t* dataToJson() override {
@@ -333,4 +333,4 @@ struct OctavesWidget : ModuleWidget {
}
};

Model* modelOctaves = createModel<Octaves, OctavesWidget>("Octaves");
Model* modelOctaves = createModel<Octaves, OctavesWidget>("Octaves");

+ 1
- 1
src/noise-plethora/plugins/Banks.cpp View File

@@ -14,7 +14,7 @@ Bank::Bank(const BankElem& p1, const BankElem& p2, const BankElem& p3,
: programs{p1, p2, p3, p4, p5, p6, p7, p8, p9, p10}
{ }

const std::string Bank::getProgramName(int i) {
std::string_view Bank::getProgramName(int i) {
if (i >= 0 && i < programsPerBank) {
return programs[i].name;
}


+ 2
- 1
src/noise-plethora/plugins/Banks.hpp View File

@@ -1,6 +1,7 @@
#pragma once

#include <string>
#include <string_view>
#include <memory>
#include <array>

@@ -30,7 +31,7 @@ struct Bank {
const BankElem& p7 = defaultElem, const BankElem& p8 = defaultElem,
const BankElem& p9 = defaultElem, const BankElem& p10 = defaultElem);

const std::string getProgramName(int i);
std::string_view getProgramName(int i);
float getProgramGain(int i);

int getSize();


+ 1
- 1
src/noise-plethora/plugins/ProgramSelector.hpp View File

@@ -68,7 +68,7 @@ public:
return program.setValue(p, getBankForIndex(getBank()).getSize());
}

const std::string getCurrentProgramName() {
const std::string_view getCurrentProgramName() {
return getBankForIndex(getBank()).getProgramName(getProgram());
}



+ 2
- 0
src/plugin.cpp View File

@@ -31,4 +31,6 @@ void init(rack::Plugin *p) {
p->addModel(modelMidiThing);
p->addModel(modelVoltio);
p->addModel(modelOctaves);
p->addModel(modelBypass);
p->addModel(modelBandit);
}

+ 9
- 0
src/plugin.hpp View File

@@ -32,6 +32,8 @@ extern Model* modelBurst;
extern Model* modelMidiThing;
extern Model* modelVoltio;
extern Model* modelOctaves;
extern Model* modelBypass;
extern Model* modelBandit;

struct Knurlie : SvgScrew {
Knurlie() {
@@ -240,6 +242,13 @@ struct Davies1900hWhiteKnobEndless : Davies1900hKnob {
}
};

template <typename TBase = WhiteLight>
struct VeryLargeSimpleLight : TBase {
VeryLargeSimpleLight() {
this->box.size = mm2px(math::Vec(7, 7));
}
};

inline int unsigned_modulo(int a, int b) {
return ((a % b) + b) % b;
}


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