97 lines
3.6 KiB
C++
97 lines
3.6 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) 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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static CommonSmoothedValueTests <LogRampedValue <float>> commonLogRampedValueTests;
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class LogRampedValueTests : public UnitTest
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{
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public:
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LogRampedValueTests()
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: UnitTest ("LogRampedValueTests", UnitTestCategories::dsp)
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{}
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void runTest() override
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{
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beginTest ("Curve");
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{
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Array<double> levels = { -0.12243, -1.21245, -12.2342, -22.4683, -30.0, -61.18753 };
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for (auto level : levels)
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{
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Array<Range<double>> ranges = { Range<double> (0.0, 1.0),
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Range<double> (-2.345, 0.0),
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Range<double> (-2.63, 3.56),
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Range<double> (3.3, -0.2) };
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for (auto range : ranges)
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{
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LogRampedValue<double> slowStart { range.getStart() } , fastStart { range.getEnd() };
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auto numSamples = 12;
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slowStart.reset (numSamples);
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fastStart.reset (numSamples);
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slowStart.setLogParameters (level, true);
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fastStart.setLogParameters (level, false);
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slowStart.setTargetValue (range.getEnd());
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fastStart.setTargetValue (range.getStart());
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AudioBuffer<double> results (2, numSamples + 1);
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results.setSample (0, 0, slowStart.getCurrentValue());
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results.setSample (1, 0, fastStart.getCurrentValue());
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for (int i = 1; i < results.getNumSamples(); ++i)
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{
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results.setSample (0, i, slowStart.getNextValue());
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results.setSample (1, i, fastStart.getNextValue());
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}
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for (int i = 0; i < results.getNumSamples(); ++i)
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expectWithinAbsoluteError (results.getSample (0, i),
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results.getSample (1, results.getNumSamples() - (i + 1)),
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1.0e-7);
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auto expectedMidpoint = range.getStart() + (range.getLength() * Decibels::decibelsToGain (level));
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expectWithinAbsoluteError (results.getSample (0, numSamples / 2),
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expectedMidpoint,
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1.0e-7);
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}
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}
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}
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}
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};
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static LogRampedValueTests LogRampedValueTests;
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} // namespace dsp
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} // namespace juce
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