void addNote( Note & n )
{
if( !p || n.pos() > lastEnd + DefaultTicksPerTact )
{
MidiTime pPos = MidiTime( n.pos().getTact(), 0 );
p = dynamic_cast<Pattern*>( it->createTCO( 0 ) );
p->movePosition( pPos );
}
hasNotes = true;
lastEnd = n.pos() + n.length();
n.setPos( n.pos( p->startPosition() ) );
p->addNote( n, false );
}
bool InstrumentTrack::play( const MidiTime & _start, const fpp_t _frames,
const f_cnt_t _offset, int _tco_num )
{
if( ! m_instrument || ! tryLock() )
{
return false;
}
const float frames_per_tick = Engine::framesPerTick();
tcoVector tcos;
::BBTrack * bb_track = NULL;
if( _tco_num >= 0 )
{
TrackContentObject * tco = getTCO( _tco_num );
tcos.push_back( tco );
bb_track = BBTrack::findBBTrack( _tco_num );
}
else
{
getTCOsInRange( tcos, _start, _start + static_cast<int>(
_frames / frames_per_tick ) );
}
// Handle automation: detuning
for( NotePlayHandleList::Iterator it = m_processHandles.begin();
it != m_processHandles.end(); ++it )
{
( *it )->processMidiTime( _start );
}
if ( tcos.size() == 0 )
{
unlock();
return false;
}
bool played_a_note = false; // will be return variable
for( tcoVector::Iterator it = tcos.begin(); it != tcos.end(); ++it )
{
Pattern* p = dynamic_cast<Pattern*>( *it );
// everything which is not a pattern or muted won't be played
if( p == NULL || ( *it )->isMuted() )
{
continue;
}
MidiTime cur_start = _start;
if( _tco_num < 0 )
{
cur_start -= p->startPosition();
}
// get all notes from the given pattern...
const NoteVector & notes = p->notes();
// ...and set our index to zero
NoteVector::ConstIterator nit = notes.begin();
// very effective algorithm for playing notes that are
// posated within the current sample-frame
if( cur_start > 0 )
{
// skip notes which are posated before start-tact
while( nit != notes.end() && ( *nit )->pos() < cur_start )
{
++nit;
}
}
Note * cur_note;
while( nit != notes.end() &&
( cur_note = *nit )->pos() == cur_start )
{
if( cur_note->length() != 0 )
{
const f_cnt_t note_frames =
cur_note->length().frames(
frames_per_tick );
NotePlayHandle* notePlayHandle = NotePlayHandleManager::acquire( this, _offset, note_frames, *cur_note );
notePlayHandle->setBBTrack( bb_track );
// are we playing global song?
if( _tco_num < 0 )
{
// then set song-global offset of pattern in order to
// properly perform the note detuning
notePlayHandle->setSongGlobalParentOffset( p->startPosition() );
}
Engine::mixer()->addPlayHandle( notePlayHandle );
played_a_note = true;
}
++nit;
}
}
unlock();
return played_a_note;
}