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// 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 <map>
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "media/midi/midi_manager.h"
#include "media/midi/midi_port_info.h"
namespace media {
class MEDIA_EXPORT MIDIManagerMac : public MIDIManager {
public:
MIDIManagerMac();
virtual ~MIDIManagerMac();
// MIDIManager implementation.
virtual bool Initialize() OVERRIDE;
virtual void SendMIDIData(MIDIManagerClient* client,
int port_index,
const uint8* data,
size_t length,
double timestamp) OVERRIDE;
private:
// CoreMIDI callback for MIDI data.
// Each callback can contain multiple packets, each of which can contain
// multiple MIDI messages.
static void ReadMidiDispatch(
const MIDIPacketList *pktlist,
void *read_proc_refcon,
void *src_conn_refcon);
virtual void ReadMidi(MIDIEndpointRef source, const MIDIPacketList *pktlist);
// Helper
static media::MIDIPortInfo GetPortInfoFromEndpoint(MIDIEndpointRef endpoint);
static double MIDITimeStampToSeconds(MIDITimeStamp timestamp);
static MIDITimeStamp SecondsToMIDITimeStamp(double seconds);
// CoreMIDI
MIDIClientRef midi_client_;
MIDIPortRef coremidi_input_;
MIDIPortRef coremidi_output_;
enum{ kMaxPacketListSize = 512 };
char midi_buffer_[kMaxPacketListSize];
MIDIPacketList* packet_list_;
MIDIPacket* midi_packet_;
typedef std::map<MIDIEndpointRef, int> SourceMap;
// Keeps track of the index (0-based) for each of our sources.
SourceMap source_map_;
// Keeps track of all destinations.
std::vector<MIDIEndpointRef> destinations_;
DISALLOW_COPY_AND_ASSIGN(MIDIManagerMac);
};
} // namespace media
#endif // MEDIA_MIDI_MIDI_MANAGER_MAC_H_
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