87 lines
3.0 KiB
C
87 lines
3.0 KiB
C
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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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 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-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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Applies waveshaping to audio samples as single samples or AudioBlocks.
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@tags{DSP}
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*/
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template <typename FloatType, typename Function = FloatType (*) (FloatType)>
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struct WaveShaper
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{
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Function functionToUse;
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//==============================================================================
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/** Called before processing starts. */
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void prepare (const ProcessSpec&) noexcept {}
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//==============================================================================
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/** Returns the result of processing a single sample. */
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template <typename SampleType>
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SampleType JUCE_VECTOR_CALLTYPE processSample (SampleType inputSample) const noexcept
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{
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return functionToUse (inputSample);
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}
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/** Processes the input and output buffers supplied in the processing context. */
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template <typename ProcessContext>
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void process (const ProcessContext& context) const noexcept
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{
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if (context.isBypassed)
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{
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if (context.usesSeparateInputAndOutputBlocks())
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context.getOutputBlock().copy (context.getInputBlock());
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}
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else
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{
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AudioBlock<FloatType>::process (context.getInputBlock(),
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context.getOutputBlock(),
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functionToUse);
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}
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}
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void reset() noexcept {}
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};
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//==============================================================================
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// Although clang supports C++17, their standard library still has no invoke_result
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// support. Remove the "|| JUCE_CLANG" once clang supports this properly!
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#if (! JUCE_CXX17_IS_AVAILABLE) || JUCE_CLANG
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template <typename Functor>
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static WaveShaper<typename std::result_of<Functor>, Functor> CreateWaveShaper (Functor functionToUse) { return {functionToUse}; }
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#else
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template <typename Functor>
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static WaveShaper<typename std::invoke_result<Functor>, Functor> CreateWaveShaper (Functor functionToUse) { return {functionToUse}; }
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#endif
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} // namespace dsp
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} // namespace juce
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