adlib_sfx_stream.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 NUVIE_SOUND_MIXER_DECODER_ADLIB_SFX_STREAM_H
#define NUVIE_SOUND_MIXER_DECODER_ADLIB_SFX_STREAM_H
 
#include "common/str.h"
#include "ultima/nuvie/sound/adplug/opl_class.h"
#include "audio/audiostream.h"
 
namespace Ultima {
namespace Nuvie {
 
class OriginFXAdLibDriver;
class Configuration;
 
 
class AdLibSfxStream : public Audio::RewindableAudioStream {
public:
    AdLibSfxStream() {
        opl = nullptr;
        duration = 0;
    }
 
    AdLibSfxStream(const Configuration *cfg, int rate, uint8 channel, sint8 note, uint8 velocity, uint8 program_number, uint32 d);
    ~AdLibSfxStream() 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 {
        return false;
    }
 
    bool endOfData() const override {
        if (total_samples_played >= duration) {
            return true;
        }
        return false;
    }
 
    uint32 getLengthInMsec() {
        return (uint32)(duration / (getRate() / 1000.0f));
    }
protected:
 
    OplClass *opl;
    OriginFXAdLibDriver *driver;
    uint32 duration;
    int interrupt_samples_left;
    int interrupt_rate;
    uint32 total_samples_played;
};
 
} // End of namespace Nuvie
} // End of namespace Ultima
 
#endif