Source to src/i_sound.h
#ifndef __SOUND__
#define __SOUND__
#define SND_TICRATE 140 // tic rate for updating sound
#define SND_MAXSONGS 40 // max number of songs in game
#define SND_SAMPLERATE 11025 // sample rate of sound effects
typedef enum
{
snd_none,
snd_PC,
snd_Adlib,
snd_SB,
snd_PAS,
snd_GUS,
snd_MPU,
snd_MPU2,
snd_MPU3,
snd_AWE,
snd_CDMUSIC,
NUM_SCARDS
} cardenum_t;
void I_PauseSong(int handle);
void I_ResumeSong(int handle);
void I_SetMusicVolume(int volume);
void I_SetSfxVolume(int volume);
int I_RegisterSong(void *data);
void I_UnRegisterSong(int handle);
int I_QrySongPlaying(int handle);
void I_StopSong(int handle);
void I_PlaySong(int handle, int looping);
int I_GetSfxLumpNum(sfxinfo_t *sound);
int I_StartSound (int id, void *data, int vol, int sep, int pitch, int priority);
void I_StopSound(int handle);
int I_SoundIsPlaying(int handle);
void I_UpdateSoundParams(int handle, int vol, int sep, int pitch);
void I_sndArbitrateCards(void);
void I_StartupSound (void);
void I_ShutdownSound (void);
void I_SetChannels(int channels);
#endif
#ifndef __ICDMUS__
#define __ICDMUS__
#define CDERR_NOTINSTALLED 10 // MSCDEX not installed
#define CDERR_NOAUDIOSUPPORT 11 // CD-ROM Doesn't support audio
#define CDERR_NOAUDIOTRACKS 12 // Current CD has no audio tracks
#define CDERR_BADDRIVE 20 // Bad drive number
#define CDERR_BADTRACK 21 // Bad track number
#define CDERR_IOCTLBUFFMEM 22 // Not enough low memory for IOCTL
#define CDERR_DEVREQBASE 100 // DevReq errors
extern int cd_Error;
int I_CDMusInit(void);
int I_CDMusPlay(int track);
int I_CDMusStop(void);
int I_CDMusResume(void);
int I_CDMusSetVolume(int volume);
int I_CDMusFirstTrack(void);
int I_CDMusLastTrack(void);
int I_CDMusTrackLength(int track);
#endif