Files @ r15899:3bbe04d427d2
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Location: cpp/openttd-patchpack/source/src/music/allegro_m.h

rubidium
(svn r20593) -Fix: (rlongago, r20547): long ago the service interval was int16, after which is got converted to Date except in the order backup. Much later I copied the savegame snippets from a vehicle and applied that on the order backup. Presto, reading/writing 32 bits (of Date) into 16 bits of ancient style service interval. That would then "spoil" the name pointer and that eventually crashes OpenTTD as it's likely to be an invalid pointer.
/* $Id$ */

/*
 * 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/>.
 */

/** @file allegro_m.h Base support for playing music via allegro. */

#ifndef MUSIC_ALLEGRO_H
#define MUSIC_ALLEGRO_H

#include "music_driver.hpp"

class MusicDriver_Allegro: public MusicDriver {
public:
	/* virtual */ const char *Start(const char * const *param);

	/* virtual */ void Stop();

	/* virtual */ void PlaySong(const char *filename);

	/* virtual */ void StopSong();

	/* virtual */ bool IsSongPlaying();

	/* virtual */ void SetVolume(byte vol);
	/* virtual */ const char *GetName() const { return "allegro"; }
};

class FMusicDriver_Allegro: public MusicDriverFactory<FMusicDriver_Allegro> {
public:
#if !defined(WITH_SDL) && defined(WITH_ALLEGRO)
	/* If SDL is not compiled in but Allegro is, chances are quite big
	 * that Allegro is going to be used. Then favour this sound driver
	 * over extmidi because with extmidi we get crashes. */
	static const int priority = 9;
#else
	static const int priority = 2;
#endif

	/* virtual */ const char *GetName() { return "allegro"; }
	/* virtual */ const char *GetDescription() { return "Allegro MIDI Driver"; }
	/* virtual */ Driver *CreateInstance() { return new MusicDriver_Allegro(); }
};

#endif /* MUSIC_ALLEGRO_H */