mirror of
https://codeberg.org/armin/justasample.git
synced 2026-09-01 04:10:48 +02:00
61 lines
2.3 KiB
C++
61 lines
2.3 KiB
C++
/*
|
|
==============================================================================
|
|
|
|
DistortionVisualizer.cpp
|
|
Created: 23 Jan 2024 9:12:52pm
|
|
Author: binya
|
|
|
|
==============================================================================
|
|
*/
|
|
|
|
#include <JuceHeader.h>
|
|
#include "DistortionVisualizer.h"
|
|
|
|
DistortionVisualizer::DistortionVisualizer(APVTS& apvts, int sampleRate) : apvts(apvts), inputBuffer(1, WINDOW_LENGTH),
|
|
densityAttachment(*apvts.getParameter(PluginParameters::DISTORTION_DENSITY), [this](float newValue) { distortionDensity = newValue; repaint(); }, apvts.undoManager),
|
|
mixAttachment(*apvts.getParameter(PluginParameters::DISTORTION_MIX), [this](float newValue) { distortionMix = newValue; repaint(); }, apvts.undoManager)
|
|
{
|
|
densityAttachment.sendInitialUpdate();
|
|
mixAttachment.sendInitialUpdate();
|
|
|
|
distortion.initialize(1, sampleRate);
|
|
}
|
|
|
|
void DistortionVisualizer::paint(juce::Graphics& g)
|
|
{
|
|
auto theme = getTheme();
|
|
|
|
// Fill the input buffer with a pre-chosen wave
|
|
for (int i = 0; i < WINDOW_LENGTH; i++)
|
|
inputBuffer.setSample(0, i, sinf(juce::MathConstants<float>::twoPi * i * SINE_HZ / WINDOW_LENGTH) + cosf(2.5f * juce::MathConstants<float>::pi * i * SINE_HZ / WINDOW_LENGTH));
|
|
distortion.updateParams(distortionDensity, 0.f, distortionMix);
|
|
distortion.process(inputBuffer, inputBuffer.getNumSamples());
|
|
auto range = inputBuffer.findMinMax(0, 0, inputBuffer.getNumSamples()).getLength() / 2.f;
|
|
|
|
// Draw the resulting waveform
|
|
juce::Path path;
|
|
int numPointsPerPixel = 10;
|
|
for (int i = 0; i < getWidth() * numPointsPerPixel; i++)
|
|
{
|
|
float pos = float(i) / numPointsPerPixel;
|
|
|
|
float sample = inputBuffer.getSample(0, int(pos * WINDOW_LENGTH / getWidth()));
|
|
float y = juce::jmap<float>(sample, -range, range, float(getHeight()) * 0.98f, getHeight() * 0.02f);
|
|
if (i == 0)
|
|
path.startNewSubPath(0, y);
|
|
else
|
|
path.lineTo(float(pos), y);
|
|
}
|
|
|
|
auto strokeWidth = getWidth() * Layout::fxDisplayStrokeWidth;
|
|
g.setColour(theme.dark);
|
|
g.strokePath(path, juce::PathStrokeType(strokeWidth));
|
|
|
|
if (!isEnabled())
|
|
g.fillAll(theme.background.withAlpha(0.5f));
|
|
}
|
|
|
|
void DistortionVisualizer::enablementChanged()
|
|
{
|
|
repaint();
|
|
}
|