1
2#ifndef _MIDI_STORE_H
3#define _MIDI_STORE_H
4
5#include <BeBuild.h>
6#include <Midi.h>
7#include <MidiSynthFile.h>
8
9struct entry_ref;
10
11class BFile;
12class BList;
13class BMidiEvent;
14
15class BMidiStore : public BMidi {
16public:
17
18	BMidiStore();
19	virtual ~BMidiStore();
20
21	virtual void NoteOff(
22		uchar channel, uchar note, uchar velocity, uint32 time = B_NOW);
23
24	virtual void NoteOn(
25		uchar channel, uchar note, uchar velocity, uint32 time = B_NOW);
26
27	virtual void KeyPressure(
28		uchar channel, uchar note, uchar pressure, uint32 time = B_NOW);
29
30	virtual void ControlChange(
31		uchar channel, uchar controlNumber, uchar controlValue,
32		uint32 time = B_NOW);
33
34	virtual void ProgramChange(
35		uchar channel, uchar programNumber, uint32 time = B_NOW);
36
37	virtual void ChannelPressure(
38		uchar channel, uchar pressure, uint32 time = B_NOW);
39
40	virtual void PitchBend(
41		uchar channel, uchar lsb, uchar msb, uint32 time = B_NOW);
42
43	virtual void SystemExclusive(
44		void* data, size_t length, uint32 time = B_NOW);
45
46	virtual void SystemCommon(
47		uchar status, uchar data1, uchar data2, uint32 time = B_NOW);
48
49	virtual void SystemRealTime(uchar status, uint32 time = B_NOW);
50
51	virtual void TempoChange(int32 beatsPerMinute, uint32 time = B_NOW);
52
53	status_t Import(const entry_ref* ref);
54	status_t Export(const entry_ref* ref, int32 format);
55
56	void SortEvents(bool force = false);
57	uint32 CountEvents() const;
58
59	uint32 CurrentEvent() const;
60	void SetCurrentEvent(uint32 eventNumber);
61
62	uint32 DeltaOfEvent(uint32 eventNumber) const;
63	uint32 EventAtDelta(uint32 time) const;
64
65	uint32 BeginTime() const;
66
67	void SetTempo(int32 beatsPerMinute);
68	int32 Tempo() const;
69
70private:
71
72	friend class BMidiSynthFile;
73
74	virtual void _ReservedMidiStore1();
75	virtual void _ReservedMidiStore2();
76	virtual void _ReservedMidiStore3();
77
78	virtual void Run();
79
80	void AddEvent(BMidiEvent* event);
81	void SprayEvent(const BMidiEvent* event, uint32 time);
82	BMidiEvent* EventAt(int32 index) const;
83	uint32 GetEventTime(const BMidiEvent* event) const;
84	uint32 TicksToMilliseconds(uint32 ticks) const;
85	uint32 MillisecondsToTicks(uint32 ms) const;
86
87	BList* fEvents;
88	int32 fCurrentEvent;
89	uint32 fStartTime;
90	int32 fBeatsPerMinute;
91	int16 fTicksPerBeat;
92	bool fNeedsSorting;
93
94	void ReadFourCC(char* fourcc);
95	uint32 Read32Bit();
96	uint16 Read16Bit();
97	uint8 PeekByte();
98	uint8 NextByte();
99	void SkipBytes(uint32 length);
100	uint32 ReadVarLength();
101	void ReadChunk();
102	void ReadTrack();
103	void ReadSystemExclusive();
104	void ReadMetaEvent();
105
106	void WriteFourCC(char a, char b, char c, char d);
107	void Write32Bit(uint32 val);
108	void Write16Bit(uint16 val);
109	void WriteByte(uint8 val);
110	void WriteVarLength(uint32 val);
111	void WriteTrack();
112	void WriteMetaEvent(BMidiEvent* event);
113
114	BFile* fFile;
115	uint32 fByteCount;
116	uint32 fTotalTicks;
117	uint16 fNumTracks;
118	uint16 fCurrTrack;
119	uint16 fFormat;
120
121	uint16 _reserved1[1];
122
123	bool* fInstruments;
124	synth_file_hook fHookFunc;
125	int32 fHookArg;
126	bool fLooping;
127	bool fPaused;
128	bool fFinished;
129
130	uint32 _reserved2[12];
131};
132
133#endif // _MIDI_STORE_H
134