Add a little level meter to audio2 module
Signed-off-by: falkTX <falktx@falktx.com>
This commit is contained in:
falkTX
parent
377636fa7a
commit
756271f1d2
1 changed files with 191 additions and 24 deletions
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@ -44,7 +44,7 @@ struct NanoKnob : Knob {
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const int knobSize = std::min(w, h - BND_WIDGET_HEIGHT * 2) - ringSize;
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const int knobStartX = w / 2 - knobSize / 2;
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const int knobStartY = BND_WIDGET_HEIGHT + ringSize;
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const int knobStartY = ringSize;
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const int knobCenterX = knobStartX + knobSize / 2;
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const int knobCenterY = knobStartY + knobSize / 2;
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@ -78,6 +78,18 @@ struct NanoKnob : Knob {
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nvgStrokeColor(args.vg, nvgRGBAf(testing.r, testing.g, testing.b, 0.1f));
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nvgStroke(args.vg);
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// line indicator
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nvgStrokeWidth(args.vg, 2);
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nvgSave(args.vg);
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nvgTranslate(args.vg, knobCenterX, knobCenterY);
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nvgRotate(args.vg, nvgDegToRad(45.0f) + normalizedValue * nvgDegToRad(270.0f));
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nvgBeginPath(args.vg);
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nvgRoundedRect(args.vg, -2, knobSize / 2 - 9, 2, 6, 1);
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nvgClosePath(args.vg);
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nvgFillColor(args.vg, nvgRGBf(1.0f, 1.0f, 1.0f));
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nvgFill(args.vg);
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nvgRestore(args.vg);
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// adjusted from VCVRack's LightWidget.cpp
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if (const float halo = settings::haloBrightness)
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{
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@ -95,7 +107,7 @@ struct NanoKnob : Knob {
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}
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// bottom label (value)
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bndIconLabelValue(args.vg, 0, BND_WIDGET_HEIGHT + knobSize + ringSize, w, BND_WIDGET_HEIGHT, -1,
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bndIconLabelValue(args.vg, 0, knobSize + ringSize, w, BND_WIDGET_HEIGHT, -1,
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testing, BND_CENTER,
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BND_LABEL_FONT_SIZE, displayString.c_str(), nullptr);
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@ -113,15 +125,10 @@ struct NanoKnob : Knob {
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const int knobSize = std::min(w, h - BND_WIDGET_HEIGHT * 2) - ringSize;
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const int knobStartX = w / 2 - knobSize / 2;
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const int knobStartY = BND_WIDGET_HEIGHT + ringSize;
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const int knobStartY = ringSize;
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const int knobCenterX = knobStartX + knobSize / 2;
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const int knobCenterY = knobStartY + knobSize / 2;
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// top label (name)
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bndIconLabelValue(args.vg, 0, 0, w, BND_WIDGET_HEIGHT, -1,
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SCHEME_WHITE, BND_CENTER,
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BND_LABEL_FONT_SIZE, displayLabel.c_str(), nullptr);
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// knob
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NVGcolor shade_top;
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NVGcolor shade_down;
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@ -164,18 +171,6 @@ struct NanoKnob : Knob {
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nvgLineCap(args.vg, NVG_ROUND);
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// line indicator
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nvgStrokeWidth(args.vg, 2);
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nvgSave(args.vg);
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nvgTranslate(args.vg, knobCenterX, knobCenterY);
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nvgRotate(args.vg, nvgDegToRad(45.0f) + normalizedValue * nvgDegToRad(270.0f));
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nvgBeginPath(args.vg);
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nvgRoundedRect(args.vg, -2, knobSize / 2 - 9, 2, 6, 1);
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nvgClosePath(args.vg);
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nvgFillColor(args.vg, nvgRGBf(1.0f, 1.0f, 1.0f));
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nvgFill(args.vg);
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nvgRestore(args.vg);
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// outer ring background
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nvgBeginPath(args.vg);
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nvgArc(args.vg,
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@ -189,6 +184,11 @@ struct NanoKnob : Knob {
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nvgStrokeColor(args.vg, nvgRGBf(0.5f, 0.5f, 0.5f));
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nvgStroke(args.vg);
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// bottom label (name)
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bndIconLabelValue(args.vg, 0, knobStartY + knobSize + BND_WIDGET_HEIGHT * 0.75f, w, BND_WIDGET_HEIGHT, -1,
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SCHEME_WHITE, BND_CENTER,
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BND_LABEL_FONT_SIZE, displayLabel.c_str(), nullptr);
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Knob::draw(args);
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}
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@ -202,6 +202,36 @@ struct NanoKnob : Knob {
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}
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};
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/*
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* Find the highest absolute and normalized value within a float array.
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*/
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static inline
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float d_findMaxNormalizedFloat(const float floats[], const std::size_t count)
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{
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DISTRHO_SAFE_ASSERT_RETURN(floats != nullptr, 0.0f);
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DISTRHO_SAFE_ASSERT_RETURN(count > 0, 0.0f);
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static const float kEmptyFloats[8192] = {};
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if (count <= 8192 && std::memcmp(floats, kEmptyFloats, count) == 0)
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return 0.0f;
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float tmp, maxf2 = std::abs(floats[0]);
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for (std::size_t i=1; i<count; ++i)
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{
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tmp = std::abs(*floats++);
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if (tmp > maxf2)
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maxf2 = tmp;
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}
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if (maxf2 > 1.0f)
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maxf2 = 1.0f;
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return maxf2;
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}
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template<int numIO>
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struct HostAudio : Module {
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CardinalPluginContext* const pcontext;
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@ -214,6 +244,8 @@ struct HostAudio : Module {
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// for rack core audio module compatibility
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dsp::RCFilter dcFilters[numIO];
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bool dcFilterEnabled = (numIO == 2);
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float gainMeterL = 0.0f;
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float gainMeterR = 0.0f;
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HostAudio()
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: pcontext(static_cast<CardinalPluginContext*>(APP)),
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@ -250,6 +282,7 @@ struct HostAudio : Module {
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const float* const* const dataIns = pcontext->dataIns;
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float** const dataOuts = pcontext->dataOuts;
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const int blockFrames = pcontext->engine->getBlockFrames();
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const int64_t blockFrame = pcontext->engine->getBlockFrame();
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if (lastBlockFrame != blockFrame)
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@ -259,7 +292,7 @@ struct HostAudio : Module {
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}
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const int k = dataFrame++;
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DISTRHO_SAFE_ASSERT_RETURN(k < pcontext->engine->getBlockFrames(),);
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DISTRHO_SAFE_ASSERT_INT2_RETURN(k < blockFrames, k, blockFrames,);
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const float gain = numParams != 0 ? std::pow(params[0].getValue(), 2.f) : 1.0f;
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@ -285,8 +318,23 @@ struct HostAudio : Module {
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dataOuts[i][k] += clamp(v * gain, -1.0f, 1.0f);
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}
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if (numInputs == 2 && ! inputs[1].isConnected())
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dataOuts[1][k] += dataOuts[0][k];
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if (numInputs == 2)
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{
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const bool connected = inputs[1].isConnected();
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if (! connected)
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dataOuts[1][k] += dataOuts[0][k];
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if (dataFrame == blockFrames)
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{
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gainMeterL = std::max(gainMeterL, d_findMaxNormalizedFloat(dataOuts[0], blockFrames));
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if (connected)
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gainMeterR = std::max(gainMeterR, d_findMaxNormalizedFloat(dataOuts[1], blockFrames));
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else
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gainMeterR = gainMeterL;
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}
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}
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}
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json_t* dataToJson() override
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@ -307,6 +355,120 @@ struct HostAudio : Module {
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}
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};
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template<int numIO>
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struct NanoMeter : Widget {
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HostAudio<numIO>* const module;
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NanoMeter(HostAudio<numIO>* const m)
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: module(m)
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{
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box.size = Vec(100, 100);
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}
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void drawLayer(const DrawArgs& args, int layer) override
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{
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if (layer != 1)
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return;
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const float usableHeight = box.size.y - 10.0f;
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// draw background
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nvgBeginPath(args.vg);
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nvgRect(args.vg,
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0,
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0,
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box.size.x,
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usableHeight);
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nvgFillColor(args.vg, nvgRGB(26, 26, 26));
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nvgFill(args.vg);
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nvgFillColor(args.vg, nvgRGBAf(0.76f, 0.11f, 0.22f, 0.5f));
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nvgStrokeColor(args.vg, nvgRGBf(0.76f, 0.11f, 0.22f));
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if (module != nullptr)
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{
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float gainMeterL = 0.0f;
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float gainMeterR = 0.0f;
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std::swap(gainMeterL, module->gainMeterL);
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std::swap(gainMeterR, module->gainMeterR);
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const float heightL = sqrtf(gainMeterL) * usableHeight;
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nvgBeginPath(args.vg);
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nvgRect(args.vg, 0.0f, usableHeight - heightL, box.size.x * 0.5f - 1.0f, heightL);
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nvgFill(args.vg);
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nvgStroke(args.vg);
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const float heightR = sqrtf(gainMeterR) * usableHeight;
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nvgBeginPath(args.vg);
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nvgRect(args.vg, box.size.x * 0.5f + 1.0f, usableHeight - heightR, box.size.x * 0.5f - 2.0f, heightR);
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nvgFill(args.vg);
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nvgStroke(args.vg);
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}
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nvgLineCap(args.vg, NVG_ROUND);
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nvgBeginPath(args.vg);
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nvgMoveTo(args.vg, 0.0f, usableHeight + 2.0f);
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nvgLineTo(args.vg, box.size.x * 0.5f - 11.0f, usableHeight + 2.0f);
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nvgStroke(args.vg);
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nvgBeginPath(args.vg);
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nvgMoveTo(args.vg, 0.0f, usableHeight + 4.0f);
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nvgLineTo(args.vg, box.size.x * 0.5f - 16.0f, usableHeight + 4.0f);
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nvgStroke(args.vg);
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nvgBeginPath(args.vg);
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nvgMoveTo(args.vg, 0.0f, usableHeight + 6.0f);
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nvgLineTo(args.vg, box.size.x * 0.5f - 19.0f, usableHeight + 6.0f);
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nvgStroke(args.vg);
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nvgBeginPath(args.vg);
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nvgMoveTo(args.vg, 0.0f, usableHeight + 8.0f);
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nvgLineTo(args.vg, box.size.x * 0.5f - 22.0f, usableHeight + 8.0f);
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nvgStroke(args.vg);
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nvgBeginPath(args.vg);
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nvgMoveTo(args.vg, 0.0f, usableHeight + 10.0f);
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nvgLineTo(args.vg, box.size.x * 0.5f - 24.0f, usableHeight + 10.0f);
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nvgStroke(args.vg);
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nvgBeginPath(args.vg);
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nvgMoveTo(args.vg, 0.0f, usableHeight + 12.0f);
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nvgLineTo(args.vg, box.size.x * 0.5f - 26.0f, usableHeight + 12.0f);
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nvgStroke(args.vg);
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nvgBeginPath(args.vg);
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nvgMoveTo(args.vg, box.size.x * 0.5f + 10.0f, usableHeight + 2.0f);
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nvgLineTo(args.vg, box.size.x - 1.0f, usableHeight + 2.0f);
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nvgStroke(args.vg);
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nvgBeginPath(args.vg);
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nvgMoveTo(args.vg, box.size.x * 0.5f + 15.0f, usableHeight + 4.0f);
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nvgLineTo(args.vg, box.size.x - 1.0f, usableHeight + 4.0f);
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nvgStroke(args.vg);
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nvgBeginPath(args.vg);
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nvgMoveTo(args.vg, box.size.x * 0.5f + 18.0f, usableHeight + 6.0f);
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nvgLineTo(args.vg, box.size.x - 1.0f, usableHeight + 6.0f);
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nvgStroke(args.vg);
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nvgBeginPath(args.vg);
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nvgMoveTo(args.vg, box.size.x * 0.5f + 20.0f, usableHeight + 8.0f);
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nvgLineTo(args.vg, box.size.x - 1.0f, usableHeight + 8.0f);
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nvgStroke(args.vg);
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nvgBeginPath(args.vg);
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nvgMoveTo(args.vg, box.size.x * 0.5f + 22.0f, usableHeight + 10.0f);
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nvgLineTo(args.vg, box.size.x - 1.0f, usableHeight + 10.0f);
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nvgStroke(args.vg);
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nvgBeginPath(args.vg);
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nvgMoveTo(args.vg, box.size.x * 0.5f + 24.0f, usableHeight + 12.0f);
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nvgLineTo(args.vg, box.size.x - 1.0f, usableHeight + 12.0f);
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nvgStroke(args.vg);
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}
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};
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template<int numIO>
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struct HostAudioWidget : ModuleWidget {
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static constexpr const float startX_In = 14.0f;
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@ -336,7 +498,12 @@ struct HostAudioWidget : ModuleWidget {
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if (numIO == 2)
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{
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addParam(createParamCentered<NanoKnob>(Vec(middleX, 290.0f), m, 0));
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addParam(createParamCentered<NanoKnob>(Vec(middleX, 310.0f), m, 0));
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NanoMeter<numIO>* const meter = new NanoMeter<numIO>(m);
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meter->box.pos = Vec(startX_In + padding - 4.0f, startY + padding * 2);
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meter->box.size = Vec(padding * 2.0f - 4.0f, 136.0f);
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addChild(meter);
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}
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}
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