kopia lustrzana https://github.com/jameshball/osci-render
96 wiersze
3.6 KiB
C++
96 wiersze
3.6 KiB
C++
#include "VolumeComponent.h"
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VolumeComponent::VolumeComponent(OscirenderAudioProcessor& p) : audioProcessor(p), juce::Thread("VolumeComponent") {
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setOpaque(false);
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startTimerHz(60);
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startThread();
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addAndMakeVisible(volumeSlider);
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volumeSlider.setSliderStyle(juce::Slider::SliderStyle::LinearVertical);
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volumeSlider.setTextBoxStyle(juce::Slider::NoTextBox, true, 0, 0);
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volumeSlider.setColour(juce::Slider::ColourIds::backgroundColourId, juce::Colours::transparentWhite);
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volumeSlider.setColour(juce::Slider::ColourIds::trackColourId, juce::Colours::transparentWhite);
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volumeSlider.setOpaque(false);
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volumeSlider.setRange(0, 1, 0.001);
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addAndMakeVisible(thresholdSlider);
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thresholdSlider.setSliderStyle(juce::Slider::SliderStyle::LinearVertical);
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thresholdSlider.setTextBoxStyle(juce::Slider::NoTextBox, true, 0, 0);
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thresholdSlider.setColour(juce::Slider::ColourIds::backgroundColourId, juce::Colours::transparentWhite);
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thresholdSlider.setColour(juce::Slider::ColourIds::trackColourId, juce::Colours::transparentWhite);
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thresholdSlider.setOpaque(false);
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thresholdSlider.setRange(0, 1, 0.001);
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}
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VolumeComponent::~VolumeComponent() {
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audioProcessor.audioProducer.unregisterConsumer(consumer);
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stopThread(1000);
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}
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void VolumeComponent::paint(juce::Graphics& g) {
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auto r = getLocalBounds().toFloat();
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r.removeFromRight(r.getWidth() / 2);
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g.setColour(juce::Colours::white);
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g.fillRect(r);
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auto channelHeight = r.getHeight();
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auto leftVolumeHeight = channelHeight * leftVolume;
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auto rightVolumeHeight = channelHeight * rightVolume;
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auto leftRect = r.removeFromLeft(r.getWidth() / 2);
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auto rightRect = r;
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auto leftRegion = leftRect;
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auto rightRegion = rightRect;
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g.setGradientFill(juce::ColourGradient(juce::Colours::green, 0, leftRect.getBottom(), juce::Colours::red, 0, leftRect.getY(), false));
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g.fillRect(leftRect.removeFromBottom(leftVolumeHeight));
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g.setGradientFill(juce::ColourGradient(juce::Colours::green, 0, rightRect.getBottom(), juce::Colours::red, 0, rightRect.getY(), false));
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g.fillRect(rightRect.removeFromBottom(rightVolumeHeight));
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// draw average volume as new rectangles on each channel 10 pixels tall
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g.setColour(juce::Colours::black);
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g.fillRect(leftRegion.getX(), leftRegion.getBottom() - (avgLeftVolume * channelHeight), leftRegion.getWidth(), 5.0f);
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g.fillRect(rightRegion.getX(), rightRegion.getBottom() - (avgRightVolume * channelHeight), rightRegion.getWidth(), 5.0f);
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}
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void VolumeComponent::timerCallback() {
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repaint();
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}
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void VolumeComponent::run() {
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audioProcessor.audioProducer.registerConsumer(consumer);
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while (!threadShouldExit()) {
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auto buffer = consumer->startProcessing();
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float leftVolume = 0;
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float rightVolume = 0;
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for (int i = 0; i < buffer->size(); i += 2) {
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leftVolume += buffer->at(i) * buffer->at(i);
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rightVolume += buffer->at(i + 1) * buffer->at(i + 1);
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}
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// RMS
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leftVolume = std::sqrt(leftVolume / (buffer->size() / 2));
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rightVolume = std::sqrt(rightVolume / (buffer->size() / 2));
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this->leftVolume = leftVolume;
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this->rightVolume = rightVolume;
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avgLeftVolume = (avgLeftVolume * 0.95) + (leftVolume * 0.05);
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avgRightVolume = (avgRightVolume * 0.95) + (rightVolume * 0.05);
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consumer->finishedProcessing();
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}
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}
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void VolumeComponent::resized() {
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auto r = getLocalBounds();
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volumeSlider.setBounds(r.removeFromLeft(r.getWidth() / 2));
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thresholdSlider.setBounds(r);
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}
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