/* Emacs style mode select   -*- C++ -*- */
/*-----------------------------------------------------------------------------*/

/* $Id:$*/

/* Copyright (C) 1993-1996 by id Software, Inc.*/

/* This source is available for distribution and/or modification*/
/* only under the terms of the DOOM Source Code License as*/
/* published by id Software. All rights reserved.*/

/* The source is distributed in the hope that it will be useful,*/
/* but WITHOUT ANY WARRANTY; without even the implied warranty of*/
/* FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License*/
/* for more details.*/

/* DESCRIPTION:*/
/*	The not so system specific sound interface.*/

/*-----------------------------------------------------------------------------*/


#ifndef __S_SOUND__
#define __S_SOUND__


#ifdef __GNUG__
#pragma interface
#endif




/* Initializes sound stuff, including volume*/
/* Sets channels, SFX and music volume,*/
/*  allocates channel buffer, sets S_sfx lookup.*/

void
S_Init
( int		sfxVolume,
  int		musicVolume );


extern int	numChannels;



/* Per level startup code.*/
/* Kills playing sounds at start of level,*/
/*  determines music if any, changes music.*/

void S_Start(void);



/* Start sound for thing at <origin>*/
/*  using <sound_id> from sounds.h*/

void
S_StartSound
( const void*	origin,
  int		sound_id );



/* Will start a sound at a given volume.*/
void
S_StartSoundAtVolume
( const void*	origin,
  int		sound_id,
  int		volume );


/* Stop sound for thing at <origin>*/
void S_StopSound(const void* origin);


/* Start music using <music_id> from sounds.h*/
void S_StartMusic(int music_id);

/* Start music using <music_id> from sounds.h,*/
/*  and set whether looping*/
void
S_ChangeMusic
( int		music_id,
  int		looping );

/* Keep MIDI buffer busy */
void S_FillMusBuffer(void);

/* Stops the music fer sure.*/
void S_StopMusic(void);

/* Stop and resume music, during game PAUSE.*/
void S_PauseSound(void);
void S_ResumeSound(void);



/* Updates music & sounds*/

void S_UpdateSounds(void* listener);

void S_SetMusicVolume(int volume);
void S_SetSfxVolume(int volume);


#endif
/*-----------------------------------------------------------------------------*/

/* $Log:$*/

/*-----------------------------------------------------------------------------*/
