| // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef MEDIA_MIDI_MIDI_MANAGER_MAC_H_ |
| #define MEDIA_MIDI_MIDI_MANAGER_MAC_H_ |
| |
| #include <CoreMIDI/MIDIServices.h> |
| #include <stdint.h> |
| #include <vector> |
| |
| #include "base/callback.h" |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "base/synchronization/lock.h" |
| #include "base/thread_annotations.h" |
| #include "base/threading/thread.h" |
| #include "media/midi/midi_export.h" |
| #include "media/midi/midi_manager.h" |
| #include "media/midi/midi_service.mojom.h" |
| |
| namespace midi { |
| |
| class MidiService; |
| |
| class MIDI_EXPORT MidiManagerMac final : public MidiManager { |
| public: |
| explicit MidiManagerMac(MidiService* service); |
| ~MidiManagerMac() override; |
| |
| // MidiManager implementation. |
| void StartInitialization() override; |
| void DispatchSendMidiData(MidiManagerClient* client, |
| uint32_t port_index, |
| const std::vector<uint8_t>& data, |
| base::TimeTicks timestamp) override; |
| |
| private: |
| // Initializes CoreMIDI on |client_thread_| asynchronously. Called from |
| // StartInitialization(). |
| void InitializeCoreMIDI(); |
| |
| // Completes CoreMIDI initialization and asks the thread that ran |
| // StartInitialization() to call CompleteStartSession() safely. |
| void CompleteCoreMIDIInitialization(mojom::Result result); |
| |
| // CoreMIDI callback for MIDI notification. |
| // Receives MIDI related event notifications from CoreMIDI. |
| static void ReceiveMidiNotifyDispatch(const MIDINotification* message, |
| void* refcon); |
| void ReceiveMidiNotify(const MIDINotification* message); |
| |
| // CoreMIDI callback for MIDI data. |
| // Each callback can contain multiple packets, each of which can contain |
| // multiple MIDI messages. |
| static void ReadMidiDispatch(const MIDIPacketList* packet_list, |
| void* read_proc_refcon, |
| void* src_conn_refcon); |
| |
| // An internal callback that runs on MidiSendThread. |
| void SendMidiData(MidiManagerClient* client, |
| uint32_t port_index, |
| const std::vector<uint8_t>& data, |
| base::TimeTicks timestamp); |
| |
| // CoreMIDI client reference. |
| MIDIClientRef midi_client_ GUARDED_BY(midi_client_lock_) = 0; |
| base::Lock midi_client_lock_; |
| |
| // Following members can be accessed without any lock on kClientTaskRunner, |
| // or on I/O thread before calling BindInstance() or after calling |
| // UnbindInstance(). |
| |
| // CoreMIDI other references. |
| MIDIPortRef midi_input_ = 0; |
| MIDIPortRef midi_output_ = 0; |
| std::vector<uint8_t> midi_buffer_; |
| |
| // Keeps track of all sources. |
| std::vector<MIDIEndpointRef> sources_; |
| |
| // Keeps track of all destinations. |
| std::vector<MIDIEndpointRef> destinations_; |
| |
| DISALLOW_COPY_AND_ASSIGN(MidiManagerMac); |
| }; |
| |
| } // namespace midi |
| |
| #endif // MEDIA_MIDI_MIDI_MANAGER_MAC_H_ |