|
|
Stores a MIDI track. This can be thought of as a list of MIDI events.
The data types used to store the track is similar to how events are stored on a MIDI file, but used in a way that allows for faster parses.
This class is used on MidiPlayer::loadSong() to load the song and later play it with MidiPlayer::play().
| MidiTrack (FILE *file,int tpcn,int Id)
| MidiTrack |
Constructor.
Parameters:
| file | the file to read the track from. It should be ready at the start of a track. MidiTrack reads just that track and the file is left at the end of this track). |
| tpcn | the ticks per cuarter note used in this file. |
| Id | the ID for this track. |
| ~MidiTrack ()
| ~MidiTrack |
Destructor
| int ticksPassed (ulong ticks)
| ticksPassed |
Makes the iterator advance the given number of ticks.
Returns: 0 if OK, and 1 if you didn't handle this track well and you forgot to take an event (thing that will never happen if you use MidiPlayer::play() ).
| int msPassed (ulong ms)
| msPassed |
Makes the iterator advance the given number of milliseconds.
Returns: 0 if OK, and 1 if you didn't handle this track well and you forgot to take an event (thing that will never happen if you use MidiPlayer::play() ).
| int currentMs (double ms)
| currentMs |
Returns the current millisecond which the iterator is at.
| ulong waitTicks (void)
| waitTicks |
Returns the number of ticks left for the next event.
| double absMsOfNextEvent (void)
| absMsOfNextEvent |
Returns the absolute number of milliseconds of the next event.
| void changeTempo (ulong t)
| changeTempo |
Change the tempo of the song.
| void readEvent (MidiEvent *ev)
| readEvent |
Reads the event at the iterator position, and puts it on the structure
pointed to by ev.
| void init (void)
| init |
Initializes the iterator.
| void clear (void)
| clear |
Clears the internal variables.