#include <midiseq/MIDISequencer.hpp>
#include <common/mmtimer.hpp>

MIDISequencer::MIDISequencer()
{
}

MIDISequencer::~MIDISequencer()
{
}

bool MIDISequencer::sequence(MIDIOutputDevice &midiDevice)
{
	DWORD currTime(MMTimer::getSystemTime());
	int currentTrack;
	bool eligibleTracks;

  eligibleTracks=false;
  for(currentTrack=0;currentTrack<MIDIBlock::MaxTracks;currentTrack++)
	{
	  if(mTrackIndices[currentTrack]>=((*mMIDIData)[currentTrack]).size())continue;
		eligibleTracks=true;
    while(((*mMIDIData)[currentTrack])[mTrackIndices[currentTrack]].playTime()<=currTime)
	  {
		  if(!midiDevice.midiEvent(((*mMIDIData)[currentTrack])[mTrackIndices[currentTrack]]))return false;
		  mTrackIndices[currentTrack]=mTrackIndices[currentTrack]+1;
	    if(mTrackIndices[currentTrack]>=((*mMIDIData)[currentTrack]).size())break;
		}
  }
	return eligibleTracks;
}