MidiTrack Class Reference

#include <track.h>

Public Member Functions
	MidiTrack (FILE *file, int tpcn, int Id)
	~MidiTrack ()
int	ticksPassed (ulong ticks)
int	msPassed (ulong ms)
int	currentMs (double ms)
ulong	waitTicks (void)
double	absMsOfNextEvent (void)
void	changeTempo (ulong t)
void	readEvent (MidiEvent *ev)
void	init (void)
void	clear (void)

Detailed Description

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().

Stores a MIDI track with a simple API

Version

0.9.5 17/01/2000

Author

Antonio Larrosa Jimenez larro.nosp@m.sa@k.nosp@m.de.or.nosp@m.g

Definition at line 126 of file track.h.

Constructor & Destructor Documentation

MidiTrack()

MidiTrack::MidiTrack	(	FILE *	file,
		int	tpcn,
		int	Id
	)

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.

Definition at line 49 of file track.cpp.

~MidiTrack()

MidiTrack::~MidiTrack

(

)

Destructor.

Definition at line 88 of file track.cpp.

Member Function Documentation

absMsOfNextEvent()

double MidiTrack::absMsOfNextEvent ( void  )

inline

Returns the absolute number of milliseconds of the next event.

Definition at line 212 of file track.h.

changeTempo()

void MidiTrack::changeTempo

(

ulong

t

)

Change the tempo of the song.

Definition at line 544 of file track.cpp.

clear()

void MidiTrack::clear

(

void

)

Clears the internal variables.

Definition at line 498 of file track.cpp.

currentMs()

int MidiTrack::currentMs

(

double

ms

)

Returns the current millisecond which the iterator is at.

Definition at line 174 of file track.cpp.

init()

void MidiTrack::init

(

void

)

Initializes the iterator.

Definition at line 519 of file track.cpp.

msPassed()

int MidiTrack::msPassed

(

ulong

ms

)

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() ).

Definition at line 158 of file track.cpp.

readEvent()

void MidiTrack::readEvent

(

MidiEvent *

ev

)

Reads the event at the iterator position, and puts it on the structure pointed to by ev.

Definition at line 190 of file track.cpp.

ticksPassed()

int MidiTrack::ticksPassed

(

ulong

ticks

)

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() ).

Definition at line 146 of file track.cpp.

waitTicks()

ulong MidiTrack::waitTicks ( void  )

inline

Returns the number of ticks left for the next event.

Definition at line 205 of file track.h.

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The documentation for this class was generated from the following files:

• track.h
• track.cpp