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 TEEN_MUSIC_H
#define TEEN_MUSIC_H
 
#include "audio/mods/paula.h"
#include "common/array.h"
 
namespace TeenAgent {
 
class TeenAgentEngine;
 
class MusicPlayer : public Audio::Paula {
public:
    MusicPlayer(TeenAgentEngine *vm);
    ~MusicPlayer() override;
 
    bool load(int id);
    int getId() const { return _id; }
 
    void start();
    void stop();
 
private:
    TeenAgentEngine *_vm;
 
    int _id;
 
    struct Row {
        struct Channel {
            byte sample;
            byte volume;
            byte note;
            Channel(): sample(0), volume(0x40), note(0) {}
        } channels[3];
    };
 
    struct Sample {
        byte *data;
        uint size;
        Sample(): data(0), size(0) {}
        ~Sample() { delete[] data; }
 
        void resize(uint s) {
            if (s != size) {
                delete[] data;
                data = new byte[s];
                size = s;
            }
        }
        void clear() {
            delete[] data;
            data = 0;
            size = 0;
        }
    } _samples[256];
 
    Common::Array<Row> _rows;
    uint _currRow;
 
    void interrupt() override;
};
 
} // End of namespace Teen
 
#endif // TEEN_MUSIC_H