/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck    *
 *   Copyright (C) 2005-2009 Christian Schoenebeck                         *
 *   Copyright (C) 2009 Grigor Iliev                                       *
 *                                                                         *
 *   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; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#ifndef __LS_SF2_ENGINE_H__
#define	__LS_SF2_ENGINE_H__

#include "DiskThread.h"
#include "../EngineBase.h"
#include "Voice.h"
#include <sf2/SF.h>

namespace LinuxSampler { namespace sf2 {

    class Engine: public LinuxSampler::EngineBase<Voice, ::sf2::Region, ::sf2::Region, DiskThread, InstrumentResourceManager, ::sf2::InstrumentBase> {
        public:
            Engine() { }
            virtual ~Engine() { }
            // implementation of abstract methods derived from class 'LinuxSampler::Engine'
            virtual bool    DiskStreamSupported();
            virtual String  Description();
            virtual String  Version();
            
            virtual Format  GetEngineFormat();

            virtual void ProcessControlChange (
                LinuxSampler::EngineChannel*  pEngineChannel,
                Pool<Event>::Iterator&        itControlChangeEvent
            );

            friend class Voice;

        protected:
            virtual DiskThread* CreateDiskThread();

            virtual Pool<Voice>::Iterator LaunchVoice (
                LinuxSampler::EngineChannel* pEngineChannel,
                Pool<Event>::Iterator&       itNoteOnEvent,
                int                          iLayer,
                bool                         ReleaseTriggerVoice,
                bool                         VoiceStealing,
                bool                         HandleKeyGroupConflicts
            );

            virtual void TriggerNewVoices (
                LinuxSampler::EngineChannel*  pEngineChannel,
                RTList<Event>::Iterator&      itNoteOnEvent,
                bool                          HandleKeyGroupConflicts
            );

            void TriggerReleaseVoices (
                LinuxSampler::EngineChannel*  pEngineChannel,
                RTList<Event>::Iterator&      itNoteOffEvent
            );

        private:
            uint32_t RandomSeed;            ///< State of the random number generator used by the random dimension.
    };

}} // namespace LinuxSampler::sf2

#endif	/* __LS_SF2_ENGINE_H__ */