allegro_m.h

Go to the documentation of this file.
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_ALLEGRO_H
00013 #define MUSIC_ALLEGRO_H
00014 
00015 #include "music_driver.hpp"
00016 
00018 class MusicDriver_Allegro: public MusicDriver {
00019 public:
00020   /* virtual */ const char *Start(const char * const *param);
00021 
00022   /* virtual */ void Stop();
00023 
00024   /* virtual */ void PlaySong(const char *filename);
00025 
00026   /* virtual */ void StopSong();
00027 
00028   /* virtual */ bool IsSongPlaying();
00029 
00030   /* virtual */ void SetVolume(byte vol);
00031   /* virtual */ const char *GetName() const { return "allegro"; }
00032 };
00033 
00035 class FMusicDriver_Allegro: public MusicDriverFactory<FMusicDriver_Allegro> {
00036 public:
00037 #if !defined(WITH_SDL) && defined(WITH_ALLEGRO)
00038   /* If SDL is not compiled in but Allegro is, chances are quite big
00039    * that Allegro is going to be used. Then favour this sound driver
00040    * over extmidi because with extmidi we get crashes. */
00041   static const int priority = 9;
00042 #else
00043   static const int priority = 2;
00044 #endif
00045 
00046   /* virtual */ const char *GetName() { return "allegro"; }
00047   /* virtual */ const char *GetDescription() { return "Allegro MIDI Driver"; }
00048   /* virtual */ Driver *CreateInstance() { return new MusicDriver_Allegro(); }
00049 };
00050 
00051 #endif /* MUSIC_ALLEGRO_H */