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Add ScaleCV module
1 parent 2387aee commit 4f06ee3

7 files changed

Lines changed: 339 additions & 24 deletions

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‎plugin.json‎

Lines changed: 24 additions & 18 deletions
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{
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"slug": "AaronStatic",
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"name": "Aaron Static",
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"version": "2.0.0",
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"license": "MIT",
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"brand": "Aaron Static",
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"author": "Aaron Static",
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"authorEmail": "aaronstatic@gmail.com",
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"authorUrl": "https://github.com/aaronstatic/",
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"pluginUrl": "https://github.com/aaronstatic/AaronStatic_modules",
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"manualUrl": "https://github.com/aaronstatic/AaronStatic_modules",
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"sourceUrl": "https://github.com/aaronstatic/AaronStatic_modules",
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"donateUrl": "https://paypal.me/AaronStaticAU",
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"changelogUrl": "",
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"modules": [
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"slug": "AaronStatic",
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"name": "Aaron Static",
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"version": "2.0.0",
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"license": "MIT",
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"brand": "Aaron Static",
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"author": "Aaron Static",
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"authorEmail": "aaronstatic@gmail.com",
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"authorUrl": "https://github.com/aaronstatic/",
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"pluginUrl": "https://github.com/aaronstatic/AaronStatic_modules",
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"manualUrl": "https://github.com/aaronstatic/AaronStatic_modules",
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"sourceUrl": "https://github.com/aaronstatic/AaronStatic_modules",
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"donateUrl": "https://paypal.me/AaronStaticAU",
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"changelogUrl": "",
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"modules": [
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{
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"slug": "ChordCV",
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"name": "ChordCV",
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"description": "Generates a chord",
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"tags": ["Polyphonic","Tuner"]
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"slug": "ChordCV",
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"name": "ChordCV",
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"description": "Generates a chord",
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"tags": ["Polyphonic","Tuner"]
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},
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{
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"slug": "ScaleCV",
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"name": "ScaleCV",
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"description": "Generates a scale",
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"tags": ["Polyphonic","Tuner"]
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}
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]
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}

‎res/ScaleCV.svg‎

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‎src/ScaleCV.cpp‎

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#include "plugin.hpp"
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#include "musiclib.hpp"
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struct ScaleCV : Module {
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enum ParamIds {
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ROOT_PARAM,
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MODE_PARAM,
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NUM_PARAMS
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};
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enum InputIds {
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ROOT_INPUT,
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MODE_INPUT,
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NUM_INPUTS
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};
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enum OutputIds {
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POLY_OUTPUT,
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NUM_OUTPUTS
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};
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enum LightIds {
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NUM_LIGHTS
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};
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int root_semi = 0;
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int mode = 0;
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ScaleCV() {
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config(NUM_PARAMS, NUM_INPUTS, NUM_OUTPUTS, NUM_LIGHTS);
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configParam(ROOT_PARAM, -4.0, 4.0, 0.0, "Root Note");
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configParam(MODE_PARAM, -4.0, 4.0, -4.0, "Mode");
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configInput(ROOT_INPUT, "1V/oct pitch");
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configInput(MODE_INPUT, "Mode");
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configOutput(POLY_OUTPUT, "Polyphonic");
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}
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void process(const ProcessArgs& args) override;
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};
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void ScaleCV::process(const ProcessArgs &args){
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float value = params[ROOT_PARAM].getValue();
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if(inputs[ROOT_INPUT].isConnected()){
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value = inputs[ROOT_INPUT].getVoltage();
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}
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float mode_val = params[MODE_PARAM].getValue();
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if(inputs[MODE_INPUT].isConnected()){
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mode_val = inputs[MODE_INPUT].getVoltage();
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}
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mode_val = clamp(mode_val,-4.0f, 2.0f);
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mode = (int)floor(mode_val + 4.0f);
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//quantize root note
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float octave = round(value);
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float semi = voltage_to_note(value);
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root_semi = voltage_to_note_int(value);
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int root_note = (octave + 4) * 12 + (int)semi;
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//Make the scale
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struct scale s = get_scale(root_note, mode);
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outputs[POLY_OUTPUT].setChannels(8);
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for(int t=0; t<8; t++){
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outputs[POLY_OUTPUT].setVoltage(note_to_voltage(s.notes[t]),t);
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}
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}
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struct ScaleCVWidget : ModuleWidget {
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struct ChordDisplayWidget : TransparentWidget {
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ScaleCV* module;
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std::shared_ptr<Font> font;
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char text[13];
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ChordDisplayWidget(Vec _pos, Vec _size, ScaleCV* _module) {
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box.size = _size;
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box.pos = _pos.minus(_size.div(2));
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module = _module;
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font = APP->window->loadFont(asset::plugin(pluginInstance, "res/fonts/PixelOperator.ttf"));
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}
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void draw(const DrawArgs &args) override {
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NVGcolor textColor = prepareDisplay(args.vg, &box, 22);
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nvgFontFaceId(args.vg, font->handle);
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nvgTextLetterSpacing(args.vg, -1.5);
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nvgTextAlign(args.vg, NVG_ALIGN_CENTER);
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Vec textPos = Vec(box.size.x/2, 21.0f);
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nvgFillColor(args.vg, textColor);
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if (module != NULL){
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get_scale_name(module->root_semi,module->mode,text);
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}else{
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snprintf(text, 13, " ");
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}
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nvgText(args.vg, textPos.x, textPos.y, text, NULL);
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}
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};
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ScaleCVWidget(ScaleCV* module) {
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setModule(module);
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setPanel(APP->window->loadSvg(asset::plugin(pluginInstance, "res/ScaleCV.svg")));
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addChild(createWidget<ScrewSilver>(Vec(RACK_GRID_WIDTH, 0)));
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addChild(createWidget<ScrewSilver>(Vec(box.size.x - 2 * RACK_GRID_WIDTH, 0)));
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addChild(createWidget<ScrewSilver>(Vec(RACK_GRID_WIDTH, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));
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addChild(createWidget<ScrewSilver>(Vec(box.size.x - 2 * RACK_GRID_WIDTH, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));
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const int centerX = box.size.x / 2;
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ChordDisplayWidget* display = new ChordDisplayWidget(Vec(centerX, 55), Vec(box.size.x - 5, 29), module);
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addChild(display);
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const int offsetXL = 40;
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addParam(createParamCentered<Rogan2PWhite>(Vec(centerX,95), module, ScaleCV::ROOT_PARAM));
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addInput(createInputCentered<PJ301MPort>(Vec(centerX - offsetXL, 95), module, ScaleCV::ROOT_INPUT));
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addParam(createParamCentered<Rogan2PWhite>(Vec(centerX,140), module, ScaleCV::MODE_PARAM));
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addInput(createInputCentered<PJ301MPort>(Vec(centerX - offsetXL, 140), module, ScaleCV::MODE_INPUT));
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addOutput(createOutputCentered<PJ301MPort>(Vec(centerX, 330), module, ScaleCV::POLY_OUTPUT));
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}
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};
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Model* modelScaleCV = createModel<ScaleCV, ScaleCVWidget>("ScaleCV");

‎src/musiclib.cpp‎

Lines changed: 45 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -141,8 +141,8 @@ struct chord get_chord(int root_note, int type, int inversion, int voicing){
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return return_chord;
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}
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static const char * noteNames[] = {"C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B"};
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static const char * chordTypes[] = {
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static const char * NOTE_NAMES[] = {"C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B"};
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static const char * CHORD_TYPE_NAMES[] = {
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"",
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"m",
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"7",
@@ -155,11 +155,50 @@ static const char * chordTypes[] = {
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};
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void get_chord_name(int root_semi, int chord_type, bool inverted, int bass_note, char* text) {
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int note = root_semi;
159-
int type = chord_type;
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char inv[4];
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if(inverted){
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sprintf(inv,"/%s",noteNames[bass_note]);
160+
sprintf(inv,"/%s",NOTE_NAMES[bass_note]);
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}
164-
sprintf(text, "%s%s%s", noteNames[note], chordTypes[type], inv);
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sprintf(text, "%s%s%s", NOTE_NAMES[root_semi], CHORD_TYPE_NAMES[chord_type], inv);
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}
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//Scales
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static const char * MODE_NAMES[] = {
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"",
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" Dorian",
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" Phrygian",
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" Lydian",
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" Mixolydian",
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" Minor",
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" Locrian"
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};
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void get_scale_name(int root_semi, int mode, char* text) {
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sprintf(text, "%s%s", NOTE_NAMES[root_semi], MODE_NAMES[mode]);
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}
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static const int MODE_DEGREES[7][7] = {
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{2,2,1,2,2,2,1}, //Major (Ionian)
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{2,1,2,2,2,1,2}, //Dorian
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{1,2,2,2,1,2,2}, //Phrygian
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{2,2,2,1,2,2,1}, //Lydian
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{2,2,1,2,2,1,2}, //Mixolydian
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{2,1,2,2,1,2,2}, //Minor (Aeolian)
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{1,2,2,1,2,2,2}, //Locrian
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};
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struct scale get_scale(int root_note, int mode){
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struct scale return_scale;
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const int *degrees = MODE_DEGREES[mode];
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return_scale.notes[0] = root_note;
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int current_note = root_note;
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int t;
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for(t=1; t<8; t++){
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current_note += degrees[t-1];
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return_scale.notes[t] = current_note;
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}
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return return_scale;
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}

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