mirror of
https://github.com/juce-framework/JUCE.git
synced 2026-01-10 23:44:24 +00:00
134 lines
3.7 KiB
C++
134 lines
3.7 KiB
C++
/*
|
|
==============================================================================
|
|
|
|
This file is part of the JUCE 7 technical preview.
|
|
Copyright (c) 2022 - Raw Material Software Limited
|
|
|
|
You may use this code under the terms of the GPL v3
|
|
(see www.gnu.org/licenses).
|
|
|
|
For the technical preview this file cannot be licensed commercially.
|
|
|
|
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
|
|
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
|
|
DISCLAIMED.
|
|
|
|
==============================================================================
|
|
*/
|
|
|
|
namespace juce
|
|
{
|
|
namespace dsp
|
|
{
|
|
|
|
//==============================================================================
|
|
template <typename SampleType>
|
|
Chorus<SampleType>::Chorus()
|
|
{
|
|
auto oscFunction = [] (SampleType x) { return std::sin (x); };
|
|
osc.initialise (oscFunction);
|
|
|
|
dryWet.setMixingRule (DryWetMixingRule::linear);
|
|
}
|
|
|
|
template <typename SampleType>
|
|
void Chorus<SampleType>::setRate (SampleType newRateHz)
|
|
{
|
|
jassert (isPositiveAndBelow (newRateHz, static_cast<SampleType> (100.0)));
|
|
|
|
rate = newRateHz;
|
|
update();
|
|
}
|
|
|
|
template <typename SampleType>
|
|
void Chorus<SampleType>::setDepth (SampleType newDepth)
|
|
{
|
|
jassert (isPositiveAndNotGreaterThan (newDepth, maxDepth));
|
|
|
|
depth = newDepth;
|
|
update();
|
|
}
|
|
|
|
template <typename SampleType>
|
|
void Chorus<SampleType>::setCentreDelay (SampleType newDelayMs)
|
|
{
|
|
jassert (isPositiveAndBelow (newDelayMs, maxCentreDelayMs));
|
|
|
|
centreDelay = jlimit (static_cast<SampleType> (1.0), maxCentreDelayMs, newDelayMs);
|
|
}
|
|
|
|
template <typename SampleType>
|
|
void Chorus<SampleType>::setFeedback (SampleType newFeedback)
|
|
{
|
|
jassert (newFeedback >= static_cast<SampleType> (-1.0) && newFeedback <= static_cast<SampleType> (1.0));
|
|
|
|
feedback = newFeedback;
|
|
update();
|
|
}
|
|
|
|
template <typename SampleType>
|
|
void Chorus<SampleType>::setMix (SampleType newMix)
|
|
{
|
|
jassert (isPositiveAndNotGreaterThan (newMix, static_cast<SampleType> (1.0)));
|
|
|
|
mix = newMix;
|
|
update();
|
|
}
|
|
|
|
//==============================================================================
|
|
template <typename SampleType>
|
|
void Chorus<SampleType>::prepare (const ProcessSpec& spec)
|
|
{
|
|
jassert (spec.sampleRate > 0);
|
|
jassert (spec.numChannels > 0);
|
|
|
|
sampleRate = spec.sampleRate;
|
|
|
|
const auto maxPossibleDelay = std::ceil ((maximumDelayModulation * maxDepth * oscVolumeMultiplier + maxCentreDelayMs)
|
|
* sampleRate / 1000.0);
|
|
delay = DelayLine<SampleType, DelayLineInterpolationTypes::Linear>{ static_cast<int> (maxPossibleDelay) };
|
|
delay.prepare (spec);
|
|
|
|
dryWet.prepare (spec);
|
|
feedbackVolume.resize (spec.numChannels);
|
|
lastOutput.resize (spec.numChannels);
|
|
|
|
osc.prepare (spec);
|
|
bufferDelayTimes.setSize (1, (int) spec.maximumBlockSize, false, false, true);
|
|
|
|
update();
|
|
reset();
|
|
}
|
|
|
|
template <typename SampleType>
|
|
void Chorus<SampleType>::reset()
|
|
{
|
|
std::fill (lastOutput.begin(), lastOutput.end(), static_cast<SampleType> (0));
|
|
|
|
delay.reset();
|
|
osc.reset();
|
|
dryWet.reset();
|
|
|
|
oscVolume.reset (sampleRate, 0.05);
|
|
|
|
for (auto& vol : feedbackVolume)
|
|
vol.reset (sampleRate, 0.05);
|
|
}
|
|
|
|
template <typename SampleType>
|
|
void Chorus<SampleType>::update()
|
|
{
|
|
osc.setFrequency (rate);
|
|
oscVolume.setTargetValue (depth * oscVolumeMultiplier);
|
|
dryWet.setWetMixProportion (mix);
|
|
|
|
for (auto& vol : feedbackVolume)
|
|
vol.setTargetValue (feedback);
|
|
}
|
|
|
|
//==============================================================================
|
|
template class Chorus<float>;
|
|
template class Chorus<double>;
|
|
|
|
} // namespace dsp
|
|
} // namespace juce
|