25bd5d8adb
subrepo: subdir: "deps/juce" merged: "b13f9084e" upstream: origin: "https://github.com/essej/JUCE.git" branch: "sono6good" commit: "b13f9084e" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596"
139 lines
4.9 KiB
C++
139 lines
4.9 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2020 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 6 End-User License
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Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
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End User License Agreement: www.juce.com/juce-6-licence
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Privacy Policy: www.juce.com/juce-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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namespace dsp
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{
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//==============================================================================
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template <typename SampleType, typename InterpolationType>
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DelayLine<SampleType, InterpolationType>::DelayLine()
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: DelayLine (0)
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{
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}
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template <typename SampleType, typename InterpolationType>
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DelayLine<SampleType, InterpolationType>::DelayLine (int maximumDelayInSamples)
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{
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jassert (maximumDelayInSamples >= 0);
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sampleRate = 44100.0;
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setMaximumDelayInSamples (maximumDelayInSamples);
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}
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//==============================================================================
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template <typename SampleType, typename InterpolationType>
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void DelayLine<SampleType, InterpolationType>::setDelay (SampleType newDelayInSamples)
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{
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auto upperLimit = (SampleType) getMaximumDelayInSamples();
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jassert (isPositiveAndNotGreaterThan (newDelayInSamples, upperLimit));
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delay = jlimit ((SampleType) 0, upperLimit, newDelayInSamples);
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delayInt = static_cast<int> (std::floor (delay));
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delayFrac = delay - (SampleType) delayInt;
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updateInternalVariables();
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}
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template <typename SampleType, typename InterpolationType>
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SampleType DelayLine<SampleType, InterpolationType>::getDelay() const
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{
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return delay;
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}
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//==============================================================================
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template <typename SampleType, typename InterpolationType>
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void DelayLine<SampleType, InterpolationType>::prepare (const ProcessSpec& spec)
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{
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jassert (spec.numChannels > 0);
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bufferData.setSize ((int) spec.numChannels, totalSize, false, false, true);
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writePos.resize (spec.numChannels);
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readPos.resize (spec.numChannels);
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v.resize (spec.numChannels);
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sampleRate = spec.sampleRate;
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reset();
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}
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template <typename SampleType, typename InterpolationType>
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void DelayLine<SampleType, InterpolationType>::setMaximumDelayInSamples (int maxDelayInSamples)
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{
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jassert (maxDelayInSamples >= 0);
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totalSize = jmax (4, maxDelayInSamples + 1);
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bufferData.setSize ((int) bufferData.getNumChannels(), totalSize, false, false, true);
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reset();
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}
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template <typename SampleType, typename InterpolationType>
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void DelayLine<SampleType, InterpolationType>::reset()
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{
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for (auto vec : { &writePos, &readPos })
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std::fill (vec->begin(), vec->end(), 0);
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std::fill (v.begin(), v.end(), static_cast<SampleType> (0));
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bufferData.clear();
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}
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//==============================================================================
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template <typename SampleType, typename InterpolationType>
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void DelayLine<SampleType, InterpolationType>::pushSample (int channel, SampleType sample)
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{
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bufferData.setSample (channel, writePos[(size_t) channel], sample);
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writePos[(size_t) channel] = (writePos[(size_t) channel] + totalSize - 1) % totalSize;
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}
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template <typename SampleType, typename InterpolationType>
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SampleType DelayLine<SampleType, InterpolationType>::popSample (int channel, SampleType delayInSamples, bool updateReadPointer)
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{
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if (delayInSamples >= 0)
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setDelay(delayInSamples);
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auto result = interpolateSample (channel);
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if (updateReadPointer)
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readPos[(size_t) channel] = (readPos[(size_t) channel] + totalSize - 1) % totalSize;
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return result;
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}
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//==============================================================================
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template class DelayLine<float, DelayLineInterpolationTypes::None>;
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template class DelayLine<double, DelayLineInterpolationTypes::None>;
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template class DelayLine<float, DelayLineInterpolationTypes::Linear>;
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template class DelayLine<double, DelayLineInterpolationTypes::Linear>;
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template class DelayLine<float, DelayLineInterpolationTypes::Lagrange3rd>;
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template class DelayLine<double, DelayLineInterpolationTypes::Lagrange3rd>;
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template class DelayLine<float, DelayLineInterpolationTypes::Thiran>;
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template class DelayLine<double, DelayLineInterpolationTypes::Thiran>;
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} // namespace dsp
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} // namespace juce
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