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/*
* InstrumentPlayHandle.h - play-handle for driving an instrument
*
* Copyright (c) 2005-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
*
* This file is part of LMMS - https://lmms.io
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program (see COPYING); if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
*/
#ifndef INSTRUMENT_PLAY_HANDLE_H
#define INSTRUMENT_PLAY_HANDLE_H
#include "PlayHandle.h"
#include "Instrument.h"
#include "NotePlayHandle.h"
#include "export.h"
class EXPORT InstrumentPlayHandle : public PlayHandle
{
public:
InstrumentPlayHandle( Instrument * instrument, InstrumentTrack* instrumentTrack );
virtual ~InstrumentPlayHandle()
{
}
virtual void play( sampleFrame * _working_buffer )
{
// ensure that all our nph's have been processed first
ConstNotePlayHandleList nphv = NotePlayHandle::nphsOfInstrumentTrack( m_instrument->instrumentTrack(), true );
bool nphsLeft;
do
{
nphsLeft = false;
for( const NotePlayHandle * constNotePlayHandle : nphv )
{
NotePlayHandle * notePlayHandle = const_cast<NotePlayHandle *>( constNotePlayHandle );
if( notePlayHandle->state() != ThreadableJob::Done && ! notePlayHandle->isFinished() )
{
nphsLeft = true;
notePlayHandle->process();
}
}
}
while( nphsLeft );
m_instrument->play( _working_buffer );
}
virtual bool isFinished() const
{
return false;
}
virtual bool isFromTrack( const Track* _track ) const
{
return m_instrument->isFromTrack( _track );
}
private:
Instrument* m_instrument;
} ;
#endif
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