music.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 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 <http://www.gnu.org/licenses/>.
 *
 */
 
#ifndef SHERLOCK_MUSIC_H
#define SHERLOCK_MUSIC_H
 
#include "audio/midiparser.h"
#include "audio/mididrv.h"
// for 3DO digital music
#include "audio/mixer.h"
#include "common/mutex.h"
#include "common/str-array.h"
 
namespace Sherlock {
 
class SherlockEngine;
 
class MidiParser_SH : public MidiParser {
public:
    MidiParser_SH();
    ~MidiParser_SH() override;
 
protected:
    Common::Mutex _mutex;
    void parseNextEvent(EventInfo &info) override;
 
    uint8 _beats;
    uint8 _lastEvent;
    const byte *_data;
    const byte *_trackEnd;
 
public:
    bool loadMusic(const byte *musData, uint32 musSize) override;
    void unloadMusic() override;
 
private:
    const byte  *_musData;
    uint32 _musDataSize;
};
 
class Music {
private:
    SherlockEngine *_vm;
    Audio::Mixer *_mixer;
    MidiParser *_midiParser;
    MidiDriver *_midiDriver;
    Audio::SoundHandle _digitalMusicHandle;
    MusicType _musicType;
    const byte *_midiMusicData;
 
    bool playMusic(const Common::String &name);
public:
    bool _musicPlaying;
    bool _musicOn;
    int _musicVolume;
    bool _midiOption;
    Common::String _currentSongName, _nextSongName;
public:
    Music(SherlockEngine *vm, Audio::Mixer *mixer);
    ~Music();
 
    void syncMusicSettings();
 
    bool loadSong(int songNumber);
 
    bool loadSong(const Common::String &songName);
 
    void startSong();
 
    void freeSong();
 
    void stopMusic();
 
    bool isPlaying();
    uint32 getCurrentPosition();
 
    bool waitUntilMSec(uint32 msecTarget, uint32 maxMSec, uint32 additionalDelay, uint32 noMusicDelay);
 
    void setMusicVolume(int volume);
 
    void getSongNames(Common::StringArray &songs);
 
    void checkSongProgress();
};
 
} // End of namespace Sherlock
 
#endif