/* ScummVM - Scumm Interpreter
 * Copyright (C) 2001  Ludvig Strigeus
 * Copyright (C) 2001-2003 The ScummVM project
 *
 * This program 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; either version 2
 * of the License, or (at your option) any later version.

 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * $Header$
 *
 */

#ifndef IMUSE_H
#define IMUSE_H

class IMuseInternal;
class MidiDriver;
class OSystem;
class Scumm;
class Serializer;
class SoundMixer;

class IMuse {
private:
	OSystem *_system;
	IMuseInternal *_target;
	void *_mutex;

	IMuse (OSystem *system, IMuseInternal *target);
	void in();
	void out();

public:
	~IMuse();

	enum {
		PROP_TEMPO_BASE = 1
	};

	void on_timer();
	void pause(bool paused);
	int save_or_load(Serializer *ser, Scumm *scumm);
	int set_music_volume(uint vol);
	int get_music_volume();
	int set_master_volume(uint vol);
	int get_master_volume();
	bool startSound(int sound);
	int stopSound(int sound);
	int stop_all_sounds();
	int get_sound_status(int sound);
	bool get_sound_active(int sound);
	int32 doCommand(int a, int b, int c, int d, int e, int f, int g, int h);
	int clear_queue();
	void setBase(byte **base);
	uint32 property(int prop, uint32 value);

	// Factory methods
	static IMuse *create(OSystem *syst, MidiDriver *midi, SoundMixer *mixer);
	static IMuse *create_midi(OSystem *syst, MidiDriver *midi) { return create(syst, midi, NULL); }
};

#endif