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// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// Copyright(C) 1993-1996 Id Software, Inc.
// Copyright(C) 2005 Simon Howard
//
// 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.
//
// DESCRIPTION:
//	The not so system specific sound interface.
//
//-----------------------------------------------------------------------------


#ifndef __S_SOUND__
#define __S_SOUND__


typedef enum 
{
    SNDDEVICE_NONE = 0,
    SNDDEVICE_PCSPEAKER = 1,
    SNDDEVICE_ADLIB = 2,
    SNDDEVICE_SB = 3,
    SNDDEVICE_PAS = 4,
    SNDDEVICE_GUS = 5,
    SNDDEVICE_WAVEBLASTER = 6,
    SNDDEVICE_SOUNDCANVAS = 7,
    SNDDEVICE_GENMIDI = 8,
    SNDDEVICE_AWE32 = 9,
} snddevice_t;

extern int snd_sfxdevice;
extern int snd_musicdevice;

//
// 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 );


// Shut down sound 

void S_Shutdown(void);



//
// 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
( void*		origin,
  int		sound_id );



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


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

// query if music is playing
boolean S_MusicPlaying(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