git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce

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"

deps/juce/modules/juce_audio_basics/buffers/juce_AudioProcessLoadMeasurer.cpp

@@ -0,0 +1,87 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2020 - Raw Material Software Limited
+
+   JUCE is an open source library subject to commercial or open-source
+   licensing.
+
+   The code included in this file is provided under the terms of the ISC license
+   http://www.isc.org/downloads/software-support-policy/isc-license. Permission
+   To use, copy, modify, and/or distribute this software for any purpose with or
+   without fee is hereby granted provided that the above copyright notice and
+   this permission notice appear in all copies.
+
+   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
+{
+
+AudioProcessLoadMeasurer::AudioProcessLoadMeasurer()    = default;
+AudioProcessLoadMeasurer::~AudioProcessLoadMeasurer()   = default;
+
+void AudioProcessLoadMeasurer::reset()
+{
+    reset (0, 0);
+}
+
+void AudioProcessLoadMeasurer::reset (double sampleRate, int blockSize)
+{
+    cpuUsageProportion = 0;
+    xruns = 0;
+
+    if (sampleRate > 0.0 && blockSize > 0)
+    {
+        msPerSample = 1000.0 / sampleRate;
+        timeToCpuScale = (msPerSample > 0.0) ? (1.0 / msPerSample) : 0.0;
+    }
+    else
+    {
+        msPerSample = 0;
+        timeToCpuScale = 0;
+    }
+}
+
+void AudioProcessLoadMeasurer::registerBlockRenderTime (double milliseconds)
+{
+    registerRenderTime (milliseconds, samplesPerBlock);
+}
+
+void AudioProcessLoadMeasurer::registerRenderTime (double milliseconds, int numSamples)
+{
+    const auto maxMilliseconds = numSamples * msPerSample;
+    const auto usedProportion = milliseconds / maxMilliseconds;
+    const auto filterAmount = 0.2;
+    cpuUsageProportion += filterAmount * (usedProportion - cpuUsageProportion);
+
+    if (milliseconds > maxMilliseconds)
+        ++xruns;
+}
+
+double AudioProcessLoadMeasurer::getLoadAsProportion() const   { return jlimit (0.0, 1.0, cpuUsageProportion); }
+double AudioProcessLoadMeasurer::getLoadAsPercentage() const   { return 100.0 * getLoadAsProportion(); }
+
+int AudioProcessLoadMeasurer::getXRunCount() const             { return xruns; }
+
+AudioProcessLoadMeasurer::ScopedTimer::ScopedTimer (AudioProcessLoadMeasurer& p)
+    : ScopedTimer (p, p.samplesPerBlock)
+{
+}
+
+AudioProcessLoadMeasurer::ScopedTimer::ScopedTimer (AudioProcessLoadMeasurer& p, int numSamplesInBlock)
+    : owner (p), startTime (Time::getMillisecondCounterHiRes()), samplesInBlock (numSamplesInBlock)
+{
+}
+
+AudioProcessLoadMeasurer::ScopedTimer::~ScopedTimer()
+{
+    owner.registerRenderTime (Time::getMillisecondCounterHiRes() - startTime, samplesInBlock);
+}
+
+} // namespace juce