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- /*
- ==============================================================================
-
- This file is part of the JUCE 6 technical preview.
- Copyright (c) 2020 - Raw Material Software Limited
-
- You may use this code under the terms of the GPL v3
- (see www.gnu.org/licenses).
-
- For this technical preview, this file is not subject to commercial licensing.
-
- 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
- {
-
- static CommonSmoothedValueTests <LogRampedValue <float>> commonLogRampedValueTests;
-
- class LogRampedValueTests : public UnitTest
- {
- public:
- LogRampedValueTests()
- : UnitTest ("LogRampedValueTests", UnitTestCategories::dsp)
- {}
-
- void runTest() override
- {
- beginTest ("Curve");
- {
- Array<double> levels = { -0.12243, -1.21245, -12.2342, -22.4683, -30.0, -61.18753 };
-
- for (auto level : levels)
- {
- Array<Range<double>> ranges = { Range<double> (0.0, 1.0),
- Range<double> (-2.345, 0.0),
- Range<double> (-2.63, 3.56),
- Range<double> (3.3, -0.2) };
-
- for (auto range : ranges)
- {
- LogRampedValue<double> slowStart { range.getStart() } , fastStart { range.getEnd() };
-
- auto numSamples = 12;
- slowStart.reset (numSamples);
- fastStart.reset (numSamples);
-
- slowStart.setLogParameters (level, true);
- fastStart.setLogParameters (level, false);
-
- slowStart.setTargetValue (range.getEnd());
- fastStart.setTargetValue (range.getStart());
-
- AudioBuffer<double> results (2, numSamples + 1);
-
- results.setSample (0, 0, slowStart.getCurrentValue());
- results.setSample (1, 0, fastStart.getCurrentValue());
-
- for (int i = 1; i < results.getNumSamples(); ++i)
- {
- results.setSample (0, i, slowStart.getNextValue());
- results.setSample (1, i, fastStart.getNextValue());
- }
-
- for (int i = 0; i < results.getNumSamples(); ++i)
- expectWithinAbsoluteError (results.getSample (0, i),
- results.getSample (1, results.getNumSamples() - (i + 1)),
- 1.0e-7);
-
- auto expectedMidpoint = range.getStart() + (range.getLength() * Decibels::decibelsToGain (level));
- expectWithinAbsoluteError (results.getSample (0, numSamples / 2),
- expectedMidpoint,
- 1.0e-7);
- }
- }
- }
- }
- };
-
- static LogRampedValueTests LogRampedValueTests;
-
- } // namespace dsp
- } // namespace juce
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