u6_adplug_decoder_stream.h

/* Created by Eric Fry
 * Copyright (C) 2011 The Nuvie Team
 *
 * 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/>.
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

#ifndef NUVIE_SOUND_ADPLUG_ADPLUG_DECODER_STREAM_H
#define NUVIE_SOUND_ADPLUG_ADPLUG_DECODER_STREAM_H

#include "ultima/shared/std/string.h"
#include "ultima/nuvie/sound/adplug/emu_opl.h"
#include "ultima/nuvie/sound/adplug/opl.h"
#include "ultima/nuvie/sound/adplug/u6m.h"
#include "ultima/nuvie/sound/adplug/mid.h"
#include "audio/audiostream.h"

namespace Ultima {
namespace Nuvie {

class U6Lib_n;
class U6Lzw;
class NuvieIOBuffer;
using Std::string;

class U6AdPlugDecoderStream : public Audio::RewindableAudioStream {
public:
    U6AdPlugDecoderStream() {
        opl = nullptr;
        player = nullptr;
        player_refresh_count = 0;
    }

    U6AdPlugDecoderStream(CEmuopl *o, const Common::Path &filename, uint16 song_num);
    ~U6AdPlugDecoderStream() override;

    int readBuffer(sint16 *buffer, const int numSamples) override;

    bool isStereo() const override {
        return true;
    }

    int getRate() const override {
        return opl->getRate();
    }

    bool rewind() override {
        if (player) {
            player->rewind();    //FIXME this would need to be locked if called outside mixer thread.
            return true;
        }
        return false;
    }

    bool endOfData() const override {
        return false;
    }
private:
    void update_opl(short *data, int num_samples);
protected:

    uint16 samples_left;
    CEmuopl *opl;
    CPlayer *player;
    int player_refresh_count;
    int interrupt_rate;
    int interrupt_samples_left;
    bool is_midi_track;
};

} // End of namespace Nuvie
} // End of namespace Ultima

#endif