202 lines
6.1 KiB
C++
202 lines
6.1 KiB
C++
#include "thicc.h"
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using Xybrid::Instruments::Thicc;
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using namespace Xybrid::NodeLib;
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using Note = InstrumentCore::Note;
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using namespace Xybrid::Data;
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#include "nodelib/commandreader.h"
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#include "data/porttypes.h"
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#include "config/pluginregistry.h"
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using namespace Xybrid::Config;
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#include "audio/audioengine.h"
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using namespace Xybrid::Audio;
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#include "ui/patchboard/nodeobject.h"
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#include "ui/gadgets/layoutgadget.h"
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#include "ui/gadgets/knobgadget.h"
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using namespace Xybrid::UI;
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#include "util/strings.h"
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#include "util/ext.h"
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#include <cmath>
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#include <array>
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#include <QDebug>
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#include <QRandomGenerator>
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#include <QCborMap>
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#include <QCborValue>
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#include <QCborArray>
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// clazy:excludeall=non-pod-global-static
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RegisterPlugin(Thicc, {
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i->id = "plug:thicc";
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i->displayName = "THiCC";
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i->category = "Instrument";
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})
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namespace {
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[[maybe_unused]] inline double wrap(double d) {
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while (true) {
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if (d > 1.0) d = (d - 2.0) * -1; //d-=2.0;
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else if (d < -1.0) d = (d + 2.0) * -1;
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else return d;
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}
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}
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[[maybe_unused]] inline double lerp(double a, double b, double p) {
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return b * p + a * (1.0 - p);
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}
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// polyBLEP algorithm (pulse antialiasing), slightly modified from https://www.kvraudio.com/forum/viewtopic.php?t=375517
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force_opt double polyblep(double t, double dt) {
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// 0 <= t < 1
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if (t < dt) {
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t /= dt;
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return t+t - t*t - 1.0;
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}
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// -1 < t < 0
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else if (t > 1.0 - dt) {
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t = (t - 1.0) / dt;
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return t*t + t+t + 1.0;
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}
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// 0 otherwise
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return 0.0;
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}
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force_opt inline double push(double in, double mod, double factor) {
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double s = in < 0 ? -1 : 1;
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in *= s;
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//if (mod < 0) mod = 1.0/-mod;
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//else mod += 1.0;
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mod = mod < 0 ? lerp(1.0, 1.0/factor, -mod) : lerp(1.0, factor, mod);
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return std::pow(in, mod)*s;
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}
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force_opt double oscSaw(double phase, double delta, double mod) {
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phase = std::fmod(phase + 0.5, 1.0);
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double d = phase;// * 0.2 + (std::floor(phase*7.0) / 7.0 + (0.5/7.0)) * 0.8;
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d = d * 2.0 - 1.0;
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d = push(d, -mod, 5);
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d -= polyblep(phase, delta);
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return d;
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}
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force_opt double oscSine(double phase, double, double mod) { return push(std::sin(phase*PI*2), -mod, 5); }
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force_opt double oscPulse(double phase, double delta, double mod) {
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double duty = (mod+1.0)/2.0;
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double d = 1.0;
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if (std::fmod(phase, 1.0) >= duty) d = -1.0;
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d += polyblep(std::fmod(phase, 1.0), delta);
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d -= polyblep(std::fmod(phase + (1.0 - duty), 1.0), delta);
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return d;
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}
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// for clang on freebsd (and possibly other non-apple llvm sources) it seems we need to specify more.
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// wave function list(s)
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const constexpr std::array<double(*)(double,double,double),3> waveFunc = {
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&oscSaw,
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&oscSine,
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&oscPulse,
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};
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const std::array<QString,3> waveName = {
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qs("saw"),
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qs("sine"),
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qs("pulse"),
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};
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}
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Thicc::Thicc() { }
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void Thicc::init() {
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addPort(Port::Input, Port::Command, 0);
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addPort(Port::Output, Port::Audio, 0);
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core.onNoteOn = [this](Note& note) {
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//qDebug() << "note on";
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note.adsr = adsr.normalized();
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note.scratch[0] = static_cast<double>(QRandomGenerator::global()->generate() % 573000);
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};
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/*core.globalParam['Q'] = [](const ParamReader& pr) {
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qDebug() << "global recieved" << pr.param() << pr.val();
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return true;
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};*/
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core.processNote = [this](Note& note, AudioPort* p) {
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double freq;
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auto osc = waveFunc[static_cast<size_t>(wave)];
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int vc = voices;
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double vf = static_cast<double>(vc);
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double spr = std::pow(SEMI, detune/(vf/2.0));
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double smpTime = core.sampleTime();
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size_t ts = p->size;
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for (size_t i = 0; i < ts; i++) {
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core.advanceNote(note);
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double n = note.effectiveNote();
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freq = 440.0 * std::pow(SEMI, n - (45+12*2));
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auto si = note.scratch[0];
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double delta = smpTime * freq;
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note.scratch[0] += delta;
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double o = 0;
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for (int i = 0; i < vc; i++) {
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auto ii = static_cast<double>(i);
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double pc = ii / vf; // phase coefficient
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double dc = ii - ((vf-1.0)/2.0); // detune coefficient
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double dm = std::pow(spr, dc);
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double sg = i % 2 == 0 ? 1.0 : -1.0;
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//o += (std::fmod(pc + si * dm, 1.0) * 2.0 - 1.0) * sg;
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o += osc(pc + si * dm, delta * dm, mod) * sg;
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}
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o /= 1.0 + ((vf - 1.0)/5.0);
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AudioFrame out = o;
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(*p)[i] += out.gainBalance(0, note.pan) * note.ampMult();
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}
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};
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}
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void Thicc::reset() { core.reset(); }
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void Thicc::release() { core.release(); }
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void Thicc::process() { core.process(this); }
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void Thicc::saveData(QCborMap& m) const {
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m[qs("adsr")] = adsr;
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m[qs("wave")] = wave;
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m[qs("voices")] = voices;
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m[qs("mod")] = mod;
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m[qs("detune")] = detune;
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}
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void Thicc::loadData(const QCborMap& m) {
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adsr = m.value("adsr");
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wave = static_cast<int>(m.value("wave").toInteger(wave));
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voices = static_cast<int>(m.value("voices").toInteger(voices));
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mod = m.value("mod").toDouble(mod);
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detune = m.value("detune").toDouble(detune);
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}
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void Thicc::onGadgetCreated() {
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auto wn = [](size_t i) { if (i >= waveName.size()) return QString::number(i); return waveName[i]; };
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auto l = new LayoutGadget(obj);
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(new KnobGadget(l))->bind(wave)->setLabel(qs("Wave"))->setTextFunc(wn)->setRange(0, waveFunc.size()-1, 1, KnobGadget::BigStep);
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(new KnobGadget(l))->bind(mod)->setLabel(qs("W. Mod"))->setRange(-1.0, 1.0, 0.01);
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l->addSpacer();
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(new KnobGadget(l))->bind(voices)->setLabel(qs("Voices"))->setRange(1, 16, 1, KnobGadget::BigStep)->setDefault(1);
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(new KnobGadget(l))->bind(detune)->setLabel(qs("Detune"))->setTextFunc(KnobGadget::textPercent)->setRange(0.0, 1.0, 0.001);
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l->addSpacer();
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KnobGadget::autoCreate(l, adsr);
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}
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