78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
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#ifndef _MIDI_SYNTH_FILE_H
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#define _MIDI_SYNTH_FILE_H
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#include <BeBuild.h>
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#include <MidiSynth.h>
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#include <Entry.h>
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typedef void (*synth_file_hook)(int32 arg);
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class BMidiSynthFile : public BMidiSynth
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{
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public:
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BMidiSynthFile();
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~BMidiSynthFile();
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status_t LoadFile(const entry_ref* midi_entry_ref);
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void UnloadFile(void);
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virtual status_t Start(void);
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virtual void Stop(void);
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void Fade(void);
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void Pause(void);
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void Resume(void);
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/* get ticks in microseconds of length of song */
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int32 Duration(void) const;
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/* set the current playback position of song in microseconds */
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int32 Position(int32 ticks) const;
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/* get the current playback position of a song in microseconds */
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int32 Seek();
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/* get the patches required to play this song */
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status_t GetPatches(int16* pArray768, int16* pReturnedCount) const;
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/* Set a call back when song is done */
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void SetFileHook(synth_file_hook pSongHook, int32 arg);
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/* poll to see if song is done */
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bool IsFinished(void) const;
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/* set song master tempo. (1.0 uses songs encoded tempo, 2.0 will play */
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/* song twice as fast, and 0.5 will play song half as fast */
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void ScaleTempoBy(double tempoFactor);
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/* sets tempo in beats per minute */
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void SetTempo(int32 newTempoBPM);
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/* returns tempo in beats per minute */
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int32 Tempo(void) const;
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/* pass true to loop song, false to not loop */
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void EnableLooping(bool loop);
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/* Mute and unmute tracks (0 to 64) */
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void MuteTrack(int16 track, bool do_mute);
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void GetMuteMap(char* pTracks) const;
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void SoloTrack(int16 track, bool do_solo);
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void GetSoloMap(char* pTracks) const;
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private:
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virtual void _ReservedMidiSynthFile1();
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virtual void _ReservedMidiSynthFile2();
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virtual void _ReservedMidiSynthFile3();
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friend class BSynth;
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uint32 _reserved[4];
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};
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#endif // _MIDI_SYNTH_FILE
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