extmidi.h

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00001 /* $Id$ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * 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.
00006  * 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.
00007  * 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/>.
00008  */
00009 
00012 #ifndef MUSIC_EXTERNAL_H
00013 #define MUSIC_EXTERNAL_H
00014 
00015 #include "music_driver.hpp"
00016 
00017 class MusicDriver_ExtMidi: public MusicDriver {
00018 private:
00019   char *command;
00020   char song[MAX_PATH];
00021   pid_t pid;
00022 
00023   void DoPlay();
00024   void DoStop();
00025 
00026 public:
00027   /* virtual */ const char *Start(const char * const *param);
00028 
00029   /* virtual */ void Stop();
00030 
00031   /* virtual */ void PlaySong(const char *filename);
00032 
00033   /* virtual */ void StopSong();
00034 
00035   /* virtual */ bool IsSongPlaying();
00036 
00037   /* virtual */ void SetVolume(byte vol);
00038   /* virtual */ const char *GetName() const { return "extmidi"; }
00039 };
00040 
00041 class FMusicDriver_ExtMidi: public MusicDriverFactory<FMusicDriver_ExtMidi> {
00042 public:
00043   static const int priority = 3;
00044   /* virtual */ const char *GetName() { return "extmidi"; }
00045   /* virtual */ const char *GetDescription() { return "External MIDI Driver"; }
00046   /* virtual */ Driver *CreateInstance() { return new MusicDriver_ExtMidi(); }
00047 };
00048 
00049 #endif /* MUSIC_EXTERNAL_H */

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