upgrade to JUCE 5.4.3. Remove (probably) unused JUCE modules. Remove VST2 target (it's been end-of-life'd by Steinberg and by JUCE)

modules/juce_audio_basics/buffers/juce_AudioProcessLoadMeasurer.cpp

@@ -0,0 +1,79 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2017 - ROLI Ltd.
+
+   JUCE is an open source library subject to commercial or open-source
+   licensing.
+
+   By using JUCE, you agree to the terms of both the JUCE 5 End-User License
+   Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
+   27th April 2017).
+
+   End User License Agreement: www.juce.com/juce-5-licence
+   Privacy Policy: www.juce.com/juce-5-privacy-policy
+
+   Or: You may also use this code under the terms of the GPL v3 (see
+   www.gnu.org/licenses).
+
+   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() {}
+AudioProcessLoadMeasurer::~AudioProcessLoadMeasurer() {}
+
+void AudioProcessLoadMeasurer::reset()
+{
+    reset (0, 0);
+}
+
+void AudioProcessLoadMeasurer::reset (double sampleRate, int blockSize)
+{
+    cpuUsageMs = 0;
+    xruns = 0;
+
+    if (sampleRate > 0.0 && blockSize > 0)
+    {
+        msPerBlock = 1000.0 * blockSize / sampleRate;
+        timeToCpuScale = (msPerBlock > 0.0) ? (1.0 / msPerBlock) : 0.0;
+    }
+    else
+    {
+        msPerBlock = 0;
+        timeToCpuScale = 0;
+    }
+}
+
+void AudioProcessLoadMeasurer::registerBlockRenderTime (double milliseconds)
+{
+    const double filterAmount = 0.2;
+    cpuUsageMs += filterAmount * (milliseconds - cpuUsageMs);
+
+    if (milliseconds > msPerBlock)
+        ++xruns;
+}
+
+double AudioProcessLoadMeasurer::getLoadAsProportion() const   { return jlimit (0.0, 1.0, timeToCpuScale * cpuUsageMs); }
+double AudioProcessLoadMeasurer::getLoadAsPercentage() const   { return 100.0 * getLoadAsProportion(); }
+
+int AudioProcessLoadMeasurer::getXRunCount() const             { return xruns; }
+
+AudioProcessLoadMeasurer::ScopedTimer::ScopedTimer (AudioProcessLoadMeasurer& p)
+   : owner (p), startTime (Time::getMillisecondCounterHiRes())
+{
+}
+
+AudioProcessLoadMeasurer::ScopedTimer::~ScopedTimer()
+{
+    owner.registerBlockRenderTime (Time::getMillisecondCounterHiRes() - startTime);
+}
+
+} // namespace juce