extmidi.h

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/*
 * This file is part of OpenTTD.
 * OpenTTD 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, version 2.
 * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef MUSIC_EXTERNAL_H
#define MUSIC_EXTERNAL_H
 
#include "music_driver.hpp"
 
class MusicDriver_ExtMidi : public MusicDriver {
private:
  std::vector<std::string> command_tokens;
  std::string song;
  pid_t pid;
 
  void DoPlay();
  void DoStop();
 
public:
  std::optional<std::string_view> Start(const StringList &param) override;
 
  void Stop() override;
 
  void PlaySong(const MusicSongInfo &song) override;
 
  void StopSong() override;
 
  bool IsSongPlaying() override;
 
  void SetVolume(uint8_t vol) override;
  std::string_view GetName() const override { return "extmidi"; }
};
 
class FMusicDriver_ExtMidi : public DriverFactoryBase {
public:
  FMusicDriver_ExtMidi() : DriverFactoryBase(Driver::DT_MUSIC, 3, "extmidi", "External MIDI Driver") {}
  Driver *CreateInstance() const override { return new MusicDriver_ExtMidi(); }
};
 
#endif /* MUSIC_EXTERNAL_H */