rmid.h

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/*
    Standard RIFF MIDI Component
    Copyright (C) 2006-2023, Pedro Lopez-Cabanillas <plcl@users.sf.net>
 
    This library 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 3 of the License, or
    (at your option) any later version.
 
    This library 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 <http://www.gnu.org/licenses/>.
*/
 
#ifndef RMIDI_H
#define RMIDI_H
 
#include <QObject>
#include <QByteArray>
#include <QString>
#include <QDataStream>
#include "macros.h"
 
#if defined(DRUMSTICK_STATIC)
#define DRUMSTICK_FILE_EXPORT
#else
#if defined(drumstick_file_EXPORTS)
#define DRUMSTICK_FILE_EXPORT Q_DECL_EXPORT
#else
#define DRUMSTICK_FILE_EXPORT Q_DECL_IMPORT
#endif
#endif
 
namespace drumstick { namespace File {
 
class DRUMSTICK_FILE_EXPORT Rmidi : public QObject
{
    Q_OBJECT
 
public:
    explicit Rmidi(QObject * parent = nullptr);
    virtual ~Rmidi();
 
    void readFromFile(QString fileName);
    void readFromStream(QDataStream* ds);
 
Q_SIGNALS:
    void signalRiffInfo(const QString& infoType, const QByteArray& info);
 
    void signalRiffData(const QString& dataType, const QByteArray& data);
 
private:
    void read();
    void processINFO(int size);
    void processList(int size);
    void processRMID(int size);
    void processRIFF(int size);
    void processData(const QString& dataType, int size);
    void skip(quint32 cktype, int size);
    quint32 readExpectedChunk(quint32 cktype);
    quint32 readChunk(quint32& cktype);
    quint32 readChunkID();
    QByteArray readByteArray(int size);
    QString toString(quint32 ckid);
 
private:
    QDataStream *m_stream;
    QString m_fileName;
};
 
}} // namespace drumstick::File
 
#endif // RMIDI_H