Files @ r24860:fb2788d47d86
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Location: cpp/openttd-patchpack/source/src/music/allegro_m.h

Michael Lutz
Codechange: [OSX] Only keep a total dirty rect for drawing.

When drawing an 8bpp screen buffer, palette resolving was done for each
dirty rectangle. In areas with high activity, this would mean a pixel might
have been resolved multiple times. Also, if too many individual updates
were queued, the whole screen would be refreshed, even if unnecessary.

All other drivers only keep one overall dirty rect, so do it here as well.
/*
 * 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"

/** Allegro's music player. */
class MusicDriver_Allegro : public MusicDriver {
public:
	const char *Start(const StringList &param) override;

	void Stop() override;

	void PlaySong(const MusicSongInfo &song) override;

	void StopSong() override;

	bool IsSongPlaying() override;

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

/** Factory for allegro's music player. */
class FMusicDriver_Allegro : public DriverFactoryBase {
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
	FMusicDriver_Allegro() : DriverFactoryBase(Driver::DT_MUSIC, PRIORITY, "allegro", "Allegro MIDI Driver") {}
	Driver *CreateInstance() const override { return new MusicDriver_Allegro(); }
};

#endif /* MUSIC_ALLEGRO_H */