fix macOS build (following Projucer changes made in Windows, which removed /Applications/JUCE/modules from its headers). move JUCE headers under source control, so that Windows and macOS can both build against same version of JUCE. remove AUv3 target (I think it's an iOS thing, so it will never work with this macOS fluidsynth dylib).

modules/juce_audio_devices/midi_io/juce_MidiOutput.cpp

@@ -0,0 +1,170 @@
+/*
+  ==============================================================================
+
+   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.
+
+   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
+{
+
+struct MidiOutput::PendingMessage
+{
+    PendingMessage (const void* data, int len, double timeStamp)
+        : message (data, len, timeStamp)
+    {}
+
+    MidiMessage message;
+    PendingMessage* next;
+};
+
+MidiOutput::MidiOutput (const String& deviceName)
+    : Thread ("midi out"), name (deviceName)
+{
+}
+
+void MidiOutput::sendBlockOfMessagesNow (const MidiBuffer& buffer)
+{
+    MidiBuffer::Iterator i (buffer);
+    MidiMessage message;
+    int samplePosition; // Note: not actually used, so no need to initialise.
+
+    while (i.getNextEvent (message, samplePosition))
+        sendMessageNow (message);
+}
+
+void MidiOutput::sendBlockOfMessages (const MidiBuffer& buffer,
+                                      double millisecondCounterToStartAt,
+                                      double samplesPerSecondForBuffer)
+{
+    // You've got to call startBackgroundThread() for this to actually work..
+    jassert (isThreadRunning());
+
+    // this needs to be a value in the future - RTFM for this method!
+    jassert (millisecondCounterToStartAt > 0);
+
+    auto timeScaleFactor = 1000.0 / samplesPerSecondForBuffer;
+
+    const uint8* data;
+    int len, time;
+
+    for (MidiBuffer::Iterator i (buffer); i.getNextEvent (data, len, time);)
+    {
+        auto eventTime = millisecondCounterToStartAt + timeScaleFactor * time;
+        auto* m = new PendingMessage (data, len, eventTime);
+
+        const ScopedLock sl (lock);
+
+        if (firstMessage == nullptr || firstMessage->message.getTimeStamp() > eventTime)
+        {
+            m->next = firstMessage;
+            firstMessage = m;
+        }
+        else
+        {
+            auto* mm = firstMessage;
+
+            while (mm->next != nullptr && mm->next->message.getTimeStamp() <= eventTime)
+                mm = mm->next;
+
+            m->next = mm->next;
+            mm->next = m;
+        }
+    }
+
+    notify();
+}
+
+void MidiOutput::clearAllPendingMessages()
+{
+    const ScopedLock sl (lock);
+
+    while (firstMessage != nullptr)
+    {
+        auto* m = firstMessage;
+        firstMessage = firstMessage->next;
+        delete m;
+    }
+}
+
+void MidiOutput::startBackgroundThread()
+{
+    startThread (9);
+}
+
+void MidiOutput::stopBackgroundThread()
+{
+    stopThread (5000);
+}
+
+void MidiOutput::run()
+{
+    while (! threadShouldExit())
+    {
+        uint32 now = Time::getMillisecondCounter();
+        uint32 eventTime = 0;
+        uint32 timeToWait = 500;
+
+        PendingMessage* message;
+
+        {
+            const ScopedLock sl (lock);
+            message = firstMessage;
+
+            if (message != nullptr)
+            {
+                eventTime = (uint32) roundToInt (message->message.getTimeStamp());
+
+                if (eventTime > now + 20)
+                {
+                    timeToWait = eventTime - (now + 20);
+                    message = nullptr;
+                }
+                else
+                {
+                    firstMessage = message->next;
+                }
+            }
+        }
+
+        if (message != nullptr)
+        {
+            std::unique_ptr<PendingMessage> messageDeleter (message);
+
+            if (eventTime > now)
+            {
+                Time::waitForMillisecondCounter (eventTime);
+
+                if (threadShouldExit())
+                    break;
+            }
+
+            if (eventTime > now - 200)
+                sendMessageNow (message->message);
+        }
+        else
+        {
+            jassert (timeToWait < 1000 * 30);
+            wait ((int) timeToWait);
+        }
+    }
+
+    clearAllPendingMessages();
+}
+
+} // namespace juce