SMF.h

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/*
 * Hydrogen
 * Copyright(c) 2002-2008 by Alex >Comix< Cominu [comix@users.sourceforge.net]
 * Copyright(c) 2008-2025 The hydrogen development team [hydrogen-devel@lists.sourceforge.net]
 *
 * http://www.hydrogen-music.org
 *
 * 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, see https://www.gnu.org/licenses
 *
 */
 
#ifndef SMF_H
#define SMF_H
 
#include <core/Object.h>
 
#include <string>
#include <cstdio>
#include <QByteArray>
 
#include <core/SMF/SMFEvent.h>
 
namespace H2Core
{
 
class Song;
class Instrument;

class SMFHeader : public Object<SMFHeader>, public SMFBase
{
        H2_OBJECT(SMFHeader)
public:
        SMFHeader( int nFormat, int nTracks, int nTPQN );
        ~SMFHeader();
        
        void addTrack();
        virtual QByteArray getBuffer() const override;
        virtual QString toQString() const override;
        
private:
        int m_nFormat;         
        int m_nTracks;         
        int m_nTPQN;             
};
 
 

class SMFTrack : public Object<SMFTrack>, public SMFBase
{
        H2_OBJECT(SMFTrack)
public:
 
        SMFTrack();
        ~SMFTrack();
 
        void addEvent( SMFEvent *pEvent );
 
        virtual QByteArray getBuffer() const override;
        virtual QString toQString() const override;
 
private:
        std::vector<SMFEvent*> m_eventList;
};
 
 

class SMF : public Object<SMF>, public SMFBase
{
        H2_OBJECT(SMF)
public:
        SMF( int nFormat, int nTPQN );
        ~SMF();
 
        void addTrack( SMFTrack *pTrack );
        virtual QByteArray getBuffer() const override;
        virtual QString toQString() const override;
 
private:
        std::vector<SMFTrack*> m_trackList;
 
        SMFHeader* m_pHeader;
};
 
 
 
typedef std::vector<SMFEvent*> EventList;
 

class SMFWriter : public H2Core::Object<SMFWriter>
{
        H2_OBJECT(SMFWriter)
public:
        SMFWriter();
        virtual ~SMFWriter();
        void save( const QString& sFilename, std::shared_ptr<Song> pSong );
 
protected:
        void sortEvents( EventList* pEventList );
        SMFTrack* createTrack0( std::shared_ptr<Song> pSong );
        
        virtual SMF* createSMF( std::shared_ptr<Song> pSong ) = 0;
        virtual void prepareEvents( std::shared_ptr<Song> pSong, SMF* pSmf )=0;
        virtual EventList* getEvents( std::shared_ptr<Song> pSong, std::shared_ptr<Instrument> pInstr ) = 0;
        virtual void  packEvents( std::shared_ptr<Song> pSong, SMF* pSmf ) = 0;
        
private:
        void saveSMF( const QString& sFilename, SMF* pSmf );
};
 
 
//-------

class SMF1Writer : public Object<SMF1Writer>, public SMFWriter
{
    H2_OBJECT(SMF1Writer)
public:
    SMF1Writer();
        virtual ~SMF1Writer();
protected:
        virtual SMF* createSMF( std::shared_ptr<Song> pSong ) override;
};
 

class SMF1WriterSingle : public Object<SMF1WriterSingle>, public SMF1Writer
{
    H2_OBJECT(SMF1WriterSingle)
public:
    SMF1WriterSingle();
        virtual ~SMF1WriterSingle();
protected:
        virtual void prepareEvents( std::shared_ptr<Song> pSong, SMF* pSmf ) override;
        virtual void packEvents( std::shared_ptr<Song> pSong, SMF* pSmf ) override;
        virtual EventList* getEvents( std::shared_ptr<Song> pSong, std::shared_ptr<Instrument> pInstr ) override;
private:
        EventList m_eventList;
};
 

class SMF1WriterMulti : public Object<SMF1WriterMulti>, public SMF1Writer
{
    H2_OBJECT(SMF1WriterMulti)
public:
    SMF1WriterMulti();
        virtual ~SMF1WriterMulti();
protected:
        virtual void prepareEvents( std::shared_ptr<Song> pSong, SMF* pSmf ) override;
        virtual void  packEvents( std::shared_ptr<Song> pSong, SMF* pSmf ) override;
        virtual EventList* getEvents( std::shared_ptr<Song> pSong, std::shared_ptr<Instrument> pInstr ) override;
private:
        // contains events for each instrument in separate vector
        std::vector<EventList*> m_eventLists;
};
 
 
//-------

class SMF0Writer : public Object<SMF0Writer>, public SMFWriter
{
    H2_OBJECT(SMF0Writer)
public:
    SMF0Writer();
        virtual ~SMF0Writer();
protected:
        virtual SMF* createSMF( std::shared_ptr<Song> pSong ) override;
        virtual void prepareEvents( std::shared_ptr<Song> pSong, SMF* pSmf ) override;
        virtual void  packEvents( std::shared_ptr<Song> pSong, SMF* pSmf ) override;
        virtual EventList* getEvents( std::shared_ptr<Song> pSong, std::shared_ptr<Instrument> pInstr ) override;
private:
        SMFTrack* m_pTrack;
        EventList m_eventList;
};
 
 
 
};
 
#endif