mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-23 10:19:27 +00:00
93 lines
2.5 KiB
C++
93 lines
2.5 KiB
C++
/* ScummVM - Scumm Interpreter
|
|
* Copyright (C) 2001 Ludvig Strigeus
|
|
* Copyright (C) 2001-2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* $URL$
|
|
* $Id$
|
|
*
|
|
*/
|
|
|
|
#ifndef SCUMM_MUSIC_H
|
|
#define SCUMM_MUSIC_H
|
|
|
|
#include "common/scummsys.h"
|
|
|
|
namespace Scumm {
|
|
|
|
/**
|
|
* Pure virtual base class for the various music/sound engines used in Scumm
|
|
* games. In particular, the iMuse code provides a subclass of this. There are
|
|
* several other subclasses providing music and sound capabilities for
|
|
* several Scumm games.
|
|
* Having this base class for all music engines allows uniform access to the
|
|
* core music/sound functionality, thus simplifying the client code.
|
|
*
|
|
* Instantiated by class Scumm.
|
|
*/
|
|
class MusicEngine {
|
|
public:
|
|
virtual ~MusicEngine() {}
|
|
|
|
/**
|
|
* Set the output volume.
|
|
* @param vol the new output volume
|
|
*/
|
|
virtual void setMusicVolume(int vol) = 0;
|
|
|
|
/**
|
|
* Start playing the sound with the given id.
|
|
* @param sound the sound to start
|
|
*/
|
|
virtual void startSound(int sound) = 0;
|
|
|
|
/**
|
|
* Stop playing the sound with the given id.
|
|
* @param sound the sound to stop
|
|
*/
|
|
virtual void stopSound(int sound) = 0;
|
|
|
|
/**
|
|
* Start playing all currently playing sounds.
|
|
*/
|
|
virtual void stopAllSounds() = 0;
|
|
|
|
/**
|
|
* Query the status of the sound with the given id. Usually this is just
|
|
* a boolean telling us whether the sound is playing or not.
|
|
* @param sound the sound to for which we want the status
|
|
* @return the status of the specified sound
|
|
*/
|
|
virtual int getSoundStatus(int sound) const = 0;
|
|
|
|
/**
|
|
* Get the value of the music timer. Used for synchronising scripts with
|
|
* the music/sound.
|
|
* @return the music timer
|
|
*/
|
|
virtual int getMusicTimer() const { return 0; }
|
|
|
|
/**
|
|
* Terminate the music engine. Called just before the music engine
|
|
* is deleted.
|
|
*/
|
|
virtual void terminate() {}
|
|
};
|
|
|
|
} // End of namespace Scumm
|
|
|
|
#endif
|