mirror of
https://github.com/juce-framework/JUCE.git
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113 lines
3.7 KiB
C++
113 lines
3.7 KiB
C++
/*
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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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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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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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struct MIDIDeviceConnection : public PhysicalTopologySource::DeviceConnection,
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public MidiInputCallback
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{
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MIDIDeviceConnection() {}
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~MIDIDeviceConnection() override
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{
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JUCE_ASSERT_MESSAGE_MANAGER_IS_LOCKED
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listeners.call ([this] (Listener& l) { l.connectionBeingDeleted (*this); });
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if (midiInput != nullptr)
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midiInput->stop();
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}
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void setLockAgainstOtherProcesses (std::shared_ptr<InterProcessLock> newLock)
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{
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midiPortLock = newLock;
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}
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struct Listener
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{
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virtual ~Listener() {}
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virtual void handleIncomingMidiMessage (const MidiMessage& message) = 0;
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virtual void connectionBeingDeleted (const MIDIDeviceConnection&) = 0;
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};
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void addListener (Listener* l)
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{
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ScopedLock scopedLock (criticalSecton);
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listeners.add (l);
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}
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void removeListener (Listener* l)
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{
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ScopedLock scopedLock (criticalSecton);
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listeners.remove (l);
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}
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bool sendMessageToDevice (const void* data, size_t dataSize) override
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{
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JUCE_ASSERT_MESSAGE_MANAGER_IS_LOCKED // This method must only be called from the message thread!
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jassert (dataSize > sizeof (BlocksProtocol::roliSysexHeader) + 1);
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jassert (memcmp (data, BlocksProtocol::roliSysexHeader, sizeof (BlocksProtocol::roliSysexHeader) - 1) == 0);
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jassert (static_cast<const uint8*> (data)[dataSize - 1] == 0xf7);
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if (midiOutput != nullptr)
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{
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midiOutput->sendMessageNow (MidiMessage (data, (int) dataSize));
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return true;
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}
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return false;
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}
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void handleIncomingMidiMessage (MidiInput*, const MidiMessage& message) override
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{
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ScopedTryLock lock (criticalSecton);
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if (lock.isLocked())
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{
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const auto data = message.getRawData();
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const int dataSize = message.getRawDataSize();
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const int bodySize = dataSize - (int) (sizeof (BlocksProtocol::roliSysexHeader) + 1);
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if (bodySize > 0 && memcmp (data, BlocksProtocol::roliSysexHeader, sizeof (BlocksProtocol::roliSysexHeader)) == 0)
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if (handleMessageFromDevice != nullptr)
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handleMessageFromDevice (data + sizeof (BlocksProtocol::roliSysexHeader), (size_t) bodySize);
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listeners.call ([&] (Listener& l) { l.handleIncomingMidiMessage (message); });
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}
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}
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std::unique_ptr<MidiInput> midiInput;
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std::unique_ptr<MidiOutput> midiOutput;
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CriticalSection criticalSecton;
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private:
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ListenerList<Listener> listeners;
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std::shared_ptr<InterProcessLock> midiPortLock;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MIDIDeviceConnection)
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};
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} // namespace juce
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