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"
121 lines
4.5 KiB
C++
121 lines
4.5 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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enum class DryWetMixingRule
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{
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linear, // dry volume is equal to 1 - wet volume
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balanced, // both dry and wet are 1 when mix is 0.5, with dry decreasing to 0
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// above this value and wet decreasing to 0 below it
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sin3dB, // alternate dry/wet mixing rule using the 3 dB sine panning rule
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sin4p5dB, // alternate dry/wet mixing rule using the 4.5 dB sine panning rule
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sin6dB, // alternate dry/wet mixing rule using the 6 dB sine panning rule
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squareRoot3dB, // alternate dry/wet mixing rule using the regular 3 dB panning rule
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squareRoot4p5dB // alternate dry/wet mixing rule using the regular 4.5 dB panning rule
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};
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/**
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A processor to handle dry/wet mixing of two audio signals, where the wet signal
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may have additional latency.
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Once a DryWetMixer object is configured, push the dry samples using pushDrySamples
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and mix into the fully wet samples using mixWetSamples.
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@tags{DSP}
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*/
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template <typename SampleType>
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class DryWetMixer
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{
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public:
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//==============================================================================
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using MixingRule = DryWetMixingRule;
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//==============================================================================
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/** Default constructor. */
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DryWetMixer();
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/** Constructor. */
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explicit DryWetMixer (int maximumWetLatencyInSamples);
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//==============================================================================
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/** Sets the mix rule. */
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void setMixingRule (MixingRule newRule);
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/** Sets the current dry/wet mix proportion, with 0.0 being full dry and 1.0
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being fully wet.
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*/
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void setWetMixProportion (SampleType newWetMixProportion);
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/** Sets the relative latency of the wet signal path compared to the dry signal
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path, and thus the amount of latency compensation that will be added to the
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dry samples in this processor.
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*/
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void setWetLatency (SampleType wetLatencyInSamples);
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//==============================================================================
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/** Initialises the processor. */
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void prepare (const ProcessSpec& spec);
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/** Resets the internal state variables of the processor. */
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void reset();
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//==============================================================================
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/** Copies the dry path samples into an internal delay line. */
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void pushDrySamples (const AudioBlock<const SampleType> drySamples);
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/** Mixes the supplied wet samples with the latency-compensated dry samples from
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pushDrySamples.
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@param wetSamples Input: The AudioBlock references fully wet samples.
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Output: The AudioBlock references the wet samples mixed
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with the latency compensated dry samples.
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@see pushDrySamples
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*/
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void mixWetSamples (AudioBlock<SampleType> wetSamples);
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private:
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//==============================================================================
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void update();
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//==============================================================================
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SmoothedValue<SampleType, ValueSmoothingTypes::Linear> dryVolume, wetVolume;
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DelayLine<SampleType, DelayLineInterpolationTypes::Thiran> dryDelayLine;
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AudioBuffer<SampleType> bufferDry;
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SingleThreadedAbstractFifo fifo;
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SampleType mix = 1.0;
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MixingRule currentMixingRule = MixingRule::linear;
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double sampleRate = 44100.0;
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int maximumWetLatencyInSamples = 0;
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};
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} // namespace dsp
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} // namespace juce
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