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fteqw/engine/client/snd_dma.c

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/*
Copyright (C) 1996-1997 Id Software, Inc.
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.
*/
// snd_dma.c -- main control for any streaming sound output devices
#include "quakedef.h"
void S_Play(void);
void S_PlayVol(void);
void S_SoundList(void);
void S_Update_(soundcardinfo_t *sc);
void S_StopAllSounds(qboolean clear);
void S_StopAllSoundsC(void);
void S_UpdateCard(soundcardinfo_t *sc);
// =======================================================================
// Internal sound data & structures
// =======================================================================
soundcardinfo_t *sndcardinfo; //the master card.
int snd_blocked = 0;
static qboolean snd_ambient = 1;
qboolean snd_initialized = false;
int snd_speed;
vec3_t listener_origin;
vec3_t listener_forward;
vec3_t listener_right;
vec3_t listener_up;
vec_t sound_nominal_clip_dist=1000.0;
int soundtime; // sample PAIRS
#define MAX_SFX 512
sfx_t *known_sfx; // hunk allocated [MAX_SFX]
int num_sfx;
sfx_t *ambient_sfx[NUM_AMBIENTS];
//int desired_speed = 44100;
int desired_bits = 16;
int sound_started=0;
cvar_t bgmvolume = SCVARF("musicvolume", "0", CVAR_ARCHIVE);
cvar_t volume = SCVARF("volume", "0.7", CVAR_ARCHIVE);
cvar_t nosound = SCVAR("nosound", "0");
cvar_t precache = SCVAR("precache", "1");
cvar_t loadas8bit = SCVAR("loadas8bit", "0");
cvar_t bgmbuffer = SCVAR("bgmbuffer", "4096");
cvar_t ambient_level = SCVAR("ambient_level", "0.3");
cvar_t ambient_fade = SCVAR("ambient_fade", "100");
cvar_t snd_noextraupdate = SCVAR("snd_noextraupdate", "0");
cvar_t snd_show = SCVAR("snd_show", "0");
cvar_t snd_khz = SCVARF("snd_khz", "11", CVAR_ARCHIVE);
cvar_t snd_inactive = SCVAR("snd_inactive", "0"); //set if you want sound even when tabbed out.
cvar_t _snd_mixahead = SCVARF("_snd_mixahead", "0.2", CVAR_ARCHIVE);
cvar_t snd_leftisright = SCVARF("snd_leftisright", "0", CVAR_ARCHIVE);
cvar_t snd_eax = SCVAR("snd_eax", "0");
cvar_t snd_speakers = SCVAR("snd_numspeakers", "2");
cvar_t snd_buffersize = SCVAR("snd_buffersize", "0");
cvar_t snd_samplebits = SCVARF("snd_samplebits", "16", CVAR_ARCHIVE);
cvar_t snd_playersoundvolume = SCVAR("snd_localvolume", "1"); //sugested by crunch
cvar_t snd_capture = SCVAR("snd_capture", "0");
cvar_t snd_linearresample = SCVAR("snd_linearresample", "1");
cvar_t snd_linearresample_stream = SCVAR("snd_linearresample_stream", "0");
cvar_t snd_usemultipledevices = SCVAR("snd_multipledevices", "0");
extern vfsfile_t *rawwritefile;
void S_AmbientOff (void)
{
snd_ambient = false;
}
void S_AmbientOn (void)
{
snd_ambient = true;
}
void S_SoundInfo_f(void)
{
soundcardinfo_t *sc;
if (!sound_started)
{
Con_Printf ("sound system not started\n");
return;
}
if (!sndcardinfo)
{
Con_Printf ("No sound cards\n");
return;
}
for (sc = sndcardinfo; sc; sc = sc->next)
{
Con_Printf("%5d stereo\n", sc->sn.numchannels - 1);
Con_Printf("%5d samples\n", sc->sn.samples);
Con_Printf("%5d samplepos\n", sc->sn.samplepos);
Con_Printf("%5d samplebits\n", sc->sn.samplebits);
Con_Printf("%5d speed\n", sc->sn.speed);
Con_Printf("0x%x dma buffer\n", sc->sn.buffer);
Con_Printf("%5d total_channels\n", sc->total_chans);
}
}
void (*pDSOUND_UpdateCapture) (void);
void S_RunCapture(void)
{
//add new drivers in order or desirability.
if (pDSOUND_UpdateCapture)
{
pDSOUND_UpdateCapture();
return;
}
}
sounddriver pDSOUND_InitCard;
sounddriver pALSA_InitCard;
sounddriver pOSS_InitCard;
sounddriver pSDL_InitCard;
sounddriver pWAV_InitCard;
sounddriver pAHI_InitCard;
typedef struct {
char *name;
sounddriver *ptr;
} sdriver_t;
sdriver_t drivers[] = {
//in order of preference
{"DSound", &pDSOUND_InitCard},
{"ALSA", &pALSA_InitCard},
{"OSS", &pOSS_InitCard},
{"SDL", &pSDL_InitCard},
{"WaveOut", &pWAV_InitCard},
{"AHI", &pAHI_InitCard},
{NULL, NULL}
};
static int SNDDMA_Init(soundcardinfo_t *sc, int *cardnum, int *drivernum)
{
sdriver_t *sd;
int st = 0;
memset(sc, 0, sizeof(*sc));
// set requested rate
if (!snd_khz.value)
sc->sn.speed = 22050;
/* else if (snd_khz.value >= 195)
sc->sn.speed = 200000;
else if (snd_khz.value >= 180)
sc->sn.speed = 192000;
else if (snd_khz.value >= 90)
sc->sn.speed = 96000; */
else if (snd_khz.value >= 45)
sc->sn.speed = 48000;
else if (snd_khz.value >= 30)
sc->sn.speed = 44100;
else if (snd_khz.value >= 20)
sc->sn.speed = 22050;
else if (snd_khz.value >= 10)
sc->sn.speed = 11025;
else
sc->sn.speed = 8000;
// set requested speaker count
if (snd_speakers.value > MAXSOUNDCHANNELS)
sc->sn.numchannels = MAXSOUNDCHANNELS;
else if (snd_speakers.value > 1)
sc->sn.numchannels = (int)snd_speakers.value;
else
sc->sn.numchannels = 1;
// set requested sample bits
if (snd_samplebits.value >= 16)
sc->sn.samplebits = 16;
else
sc->sn.samplebits = 8;
// set requested buffer size
if (snd_buffersize.value > 0)
sc->sn.samples = (int)snd_buffersize.value * sc->sn.numchannels;
else
sc->sn.samples = 0;
sd = &drivers[*drivernum];
if (!sd->ptr)
return 2; //no more cards.
if (!*sd->ptr) //driver not loaded
{
Con_DPrintf("Sound driver %s is not loaded\n", sd->name);
st = 2;
}
else
{
Con_DPrintf("Trying to load a %s sound device\n", sd->name);
st = (**sd->ptr)(sc, *cardnum);
}
if (st == 1) //worked
{
*cardnum += 1; //use the next card next time
return st;
}
else if (st == 0) //failed, try the next card with this driver.
{
*cardnum += 1;
return SNDDMA_Init(sc, cardnum, drivernum);
}
else //card number wasn't valid, try the first card of the next driver
{
*cardnum = 0;
*drivernum += 1;
return SNDDMA_Init(sc, cardnum, drivernum);
}
}
void S_DefaultSpeakerConfiguration(soundcardinfo_t *sc)
{
if (sc->sn.numchannels < 3)
{
sc->pitch[0] = 0;
sc->pitch[1] = 0;
sc->dist[0] = 1;
sc->dist[1] = 1;
sc->yaw[0] = 270;
sc->yaw[1] = 90;
}
else if (sc->sn.numchannels < 5)
{
sc->pitch[0] = 0;
sc->pitch[1] = 0;
sc->pitch[2] = 0;
sc->pitch[3] = 0;
sc->dist[0] = 1;
sc->dist[1] = 1;
sc->dist[2] = 1;
sc->dist[3] = 1;
sc->yaw[0] = 315;
sc->yaw[1] = 45;
sc->yaw[2] = 225;
sc->yaw[3] = 135;
}
else
{
sc->pitch[0] = 0;
sc->pitch[1] = 0;
sc->pitch[2] = 0;
sc->pitch[3] = 0;
sc->pitch[4] = 0;
sc->pitch[5] = 0;
sc->dist[0] = 1;
sc->dist[1] = 1;
sc->dist[2] = 1;
sc->dist[3] = 1;
sc->dist[4] = 1;
sc->dist[5] = 1;
sc->yaw[0] = 315;
sc->yaw[1] = 45;
sc->yaw[2] = 0;
sc->yaw[3] = 0;
sc->yaw[4] = 225;
sc->yaw[5] = 135;
}
}
/*
================
S_Startup
================
*/
void S_ClearRaw(void);
void S_Startup (void)
{
int cardnum, drivernum;
int warningmessage=0;
int rc;
soundcardinfo_t *sc;
if (!snd_initialized)
return;
if (sound_started)
S_Shutdown();
snd_blocked = 0;
snd_speed = 0;
for(cardnum = 0, drivernum = 0;;)
{
sc = Z_Malloc(sizeof(soundcardinfo_t));
rc = SNDDMA_Init(sc, &cardnum, &drivernum);
if (!rc) //error stop
{
Con_Printf("S_Startup: SNDDMA_Init failed.\n");
Z_Free(sc);
break;
}
if (rc == 2) //silently stop (no more cards)
{
Z_Free(sc);
break;
}
S_DefaultSpeakerConfiguration(sc);
if (sndcardinfo)
{ //if the sample speeds of multiple soundcards do not match, it'll fail.
if (snd_speed != sc->sn.speed)
{
if (!warningmessage)
{
Con_Printf("S_Startup: Ignoring soundcard %s due to mismatched sample speeds.\nTry running Quake with -singlesound to use just the primary soundcard\n", sc->name);
S_ShutdownCard(sc);
warningmessage = true;
}
Z_Free(sc);
continue;
}
}
else
snd_speed = sc->sn.speed;
sc->next = sndcardinfo;
sndcardinfo = sc;
if (!snd_usemultipledevices.value)
break;
}
sound_started = 1;
S_ClearRaw();
}
void SNDDMA_SetUnderWater(qboolean underwater)
{
soundcardinfo_t *sc;
for (sc = sndcardinfo; sc; sc=sc->next)
sc->SetWaterDistortion(sc, underwater);
}
//why isn't this part of S_Restart_f anymore?
//so that the video code can call it directly without flushing the models it's just loaded.
void S_DoRestart (void)
{
if (nosound.value)
return;
S_StopAllSounds (true);
S_Shutdown();
sound_started = 0;
S_Startup();
ambient_sfx[AMBIENT_WATER] = S_PrecacheSound ("ambience/water1.wav");
ambient_sfx[AMBIENT_SKY] = S_PrecacheSound ("ambience/wind2.wav");
S_StopAllSounds (true);
}
void S_Restart_f (void)
{
Cache_Flush();//forget the old sounds.
S_DoRestart();
}
void S_Control_f (void)
{
int i;
char *command;
if (Cmd_Argc() < 2)
return;
command = Cmd_Argv (1);
if (!Q_strcasecmp(command, "off"))
{
Cache_Flush();//forget the old sounds.
S_StopAllSounds (true);
S_Shutdown();
sound_started = 0;
}
else if (!Q_strcasecmp(command, "multi") || !Q_strcasecmp(command, "multiple"))
{
if (!Q_strcasecmp(Cmd_Argv (2), "off"))
{
if (snd_usemultipledevices.value)
{
Cvar_SetValue(&snd_usemultipledevices, 0);
S_Restart_f();
}
}
else if (!snd_usemultipledevices.value)
{
Cvar_SetValue(&snd_usemultipledevices, 1);
S_Restart_f();
}
return;
}
if (!Q_strcasecmp(command, "single"))
{
Cvar_SetValue(&snd_usemultipledevices, 0);
S_Restart_f();
return;
}
if (!Q_strcasecmp(command, "rate") || !Q_strcasecmp(command, "speed"))
{
Cvar_SetValue(&snd_khz, atof(Cmd_Argv (2))/1000);
S_Restart_f();
return;
}
//individual device control
if (!Q_strncasecmp(command, "card", 4))
{
int card;
soundcardinfo_t *sc;
card = atoi(command+4);
for (i = 0, sc = sndcardinfo; i < card && sc; i++,sc=sc->next)
;
if (!sc)
{
Con_Printf("Sound card %i is invalid (try resetting first)\n", card);
return;
}
if (Cmd_Argc() < 3)
{
Con_Printf("Scard %i is %s\n", card, sc->name);
return;
}
command = Cmd_Argv (2);
if (!Q_strcasecmp(command, "mono"))
{
for (i = 0; i < MAXSOUNDCHANNELS; i++)
{
sc->yaw[i] = 0;
sc->pitch[i] = 0; //point forwards
sc->dist[i] = 1;
}
}
else if (!Q_strcasecmp(command, "standard") || !Q_strcasecmp(command, "stereo"))
{
for (i = 0; i < MAXSOUNDCHANNELS; i++)
{
if (i & 1)
sc->yaw[i] = 90; //right
else
sc->yaw[i] = 270; //left
sc->pitch[i] = 0;
sc->dist[i] = 1;
}
}
else if (!Q_strcasecmp(command, "swap"))
{
for (i = 0; i < MAXSOUNDCHANNELS; i++)
{
if (i & 1)
sc->yaw[i] = 270; //left
else
sc->yaw[i] = 90; //right
sc->pitch[i] = 0;
sc->dist[i] = 1;
}
}
else if (!Q_strcasecmp(command, "front"))
{
for (i = 0; i < MAXSOUNDCHANNELS; i++)
{
if (i & 1)
sc->yaw[i] = 45; //front right
else
sc->yaw[i] = 315; //front left
sc->pitch[i] = 0;
sc->dist[i] = 1;
}
}
else if (!Q_strcasecmp(command, "back"))
{
for (i = 0; i < MAXSOUNDCHANNELS; i++)
{
if (i & 1)
sc->yaw[i] = 180-45; //behind right
else
sc->yaw[i] = 180+45; //behind left
sc->pitch[i] = 0;
sc->dist[i] = 1;
}
}
return;
}
}
/*
================
S_Init
================
*/
void S_Init (void)
{
int p;
if (snd_initialized) //whoops
{
Con_Printf("Sound is already initialized\n");
return;
}
Con_DPrintf("\nSound Initialization\n");
Cmd_AddCommand("play", S_Play);
Cmd_AddCommand("play2", S_Play);
Cmd_AddCommand("playvol", S_PlayVol);
Cmd_AddCommand("stopsound", S_StopAllSoundsC);
Cmd_AddCommand("soundlist", S_SoundList);
Cmd_AddCommand("soundinfo", S_SoundInfo_f);
Cmd_AddCommand("snd_restart", S_Restart_f);
Cmd_AddCommand("soundcontrol", S_Control_f);
Cvar_Register(&nosound, "Sound controls");
Cvar_Register(&volume, "Sound controls");
Cvar_Register(&precache, "Sound controls");
Cvar_Register(&loadas8bit, "Sound controls");
Cvar_Register(&bgmvolume, "Sound controls");
Cvar_Register(&bgmbuffer, "Sound controls");
Cvar_Register(&ambient_level, "Sound controls");
Cvar_Register(&ambient_fade, "Sound controls");
Cvar_Register(&snd_noextraupdate, "Sound controls");
Cvar_Register(&snd_show, "Sound controls");
Cvar_Register(&_snd_mixahead, "Sound controls");
Cvar_Register(&snd_khz, "Sound controls");
Cvar_Register(&snd_leftisright, "Sound controls");
Cvar_Register(&snd_eax, "Sound controls");
Cvar_Register(&snd_speakers, "Sound controls");
Cvar_Register(&snd_buffersize, "Sound controls");
Cvar_Register(&snd_samplebits, "Sound controls");
Cvar_Register(&snd_capture, "Sound controls");
Cvar_Register(&snd_inactive, "Sound controls");
Cvar_Register(&snd_playersoundvolume, "Sound controls");
Cvar_Register(&snd_usemultipledevices, "Sound controls");
Cvar_Register(&snd_linearresample, "Sound controls");
Cvar_Register(&snd_linearresample_stream, "Sound controls");
if (COM_CheckParm("-nosound"))
{
Cvar_ForceSet(&nosound, "1");
nosound.flags |= CVAR_NOSET;
return;
}
p = COM_CheckParm ("-soundspeed");
if (p)
{
if (p < com_argc-1)
Cvar_SetValue(&snd_khz, atof(com_argv[p+1])/1000);
else
Sys_Error ("S_Init: you must specify a speed in KB after -soundspeed");
}
if (COM_CheckParm ("-nomultipledevices") || COM_CheckParm ("-singlesound"))
Cvar_SetValue(&snd_usemultipledevices, 0);
if (COM_CheckParm ("-multisound"))
Cvar_SetValue(&snd_usemultipledevices, 1);
if (host_parms.memsize < 0x800000)
{
Cvar_Set (&loadas8bit, "1");
Con_Printf ("loading all sounds as 8bit\n");
}
snd_initialized = true;
known_sfx = Hunk_AllocName (MAX_SFX*sizeof(sfx_t), "sfx_t");
num_sfx = 0;
// create a piece of DMA memory
if (sndcardinfo)
Con_SafePrintf ("Sound sampling rate: %i\n", sndcardinfo->sn.speed);
// provides a tick sound until washed clean
// if (shm->buffer)
// shm->buffer[4] = shm->buffer[5] = 0x7f; // force a pop for debugging
ambient_sfx[AMBIENT_WATER] = S_PrecacheSound ("ambience/water1.wav");
ambient_sfx[AMBIENT_SKY] = S_PrecacheSound ("ambience/wind2.wav");
S_StopAllSounds (true);
}
// =======================================================================
// Shutdown sound engine
// =======================================================================
void S_ShutdownCard(soundcardinfo_t *sc)
{
soundcardinfo_t *prev;
#if defined(_WIN32) && !defined(NODIRECTX)
extern int aimedforguid;
aimedforguid = 0;
#endif
if (sndcardinfo == sc)
sndcardinfo = sc->next;
else
{
for (prev = sndcardinfo; prev->next; prev = prev->next)
{
if (prev->next == sc)
prev->next = sc->next;
}
}
sc->Shutdown(sc);
Z_Free(sc);
}
void S_Shutdown(void)
{
soundcardinfo_t *sc, *next;
#if defined(_WIN32) && !defined(NODIRECTX)
extern int aimedforguid;
aimedforguid = 0;
#endif
for (sc = sndcardinfo; sc; sc=next)
{
next = sc->next;
sc->Shutdown(sc);
Z_Free(sc);
sndcardinfo = next;
}
sound_started = 0;
}
// =======================================================================
// Load a sound
// =======================================================================
/*
==================
S_FindName
==================
*/
sfx_t *S_FindName (char *name)
{
int i;
sfx_t *sfx;
if (!name)
Sys_Error ("S_FindName: NULL\n");
if (Q_strlen(name) >= MAX_OSPATH)
Sys_Error ("Sound name too long: %s", name);
// see if already loaded
for (i=0 ; i < num_sfx ; i++)
if (!Q_strcmp(known_sfx[i].name, name))
{
return &known_sfx[i];
}
if (num_sfx == MAX_SFX)
Sys_Error ("S_FindName: out of sfx_t");
sfx = &known_sfx[i];
strcpy (sfx->name, name);
num_sfx++;
return sfx;
}
void S_ResetFailedLoad(void)
{
int i;
for (i=0 ; i < num_sfx ; i++)
known_sfx[i].failedload = false;
}
/*
==================
S_TouchSound
==================
*/
void S_TouchSound (char *name)
{
sfx_t *sfx;
if (!sound_started)
return;
sfx = S_FindName (name);
Cache_Check (&sfx->cache);
}
/*
==================
S_PrecacheSound
==================
*/
sfx_t *S_PrecacheSound (char *name)
{
sfx_t *sfx;
if (nosound.value)
return NULL;
sfx = S_FindName (name);
// cache it in
if (precache.value &&sndcardinfo)
S_LoadSound (sfx);
return sfx;
}
//=============================================================================
/*
=================
SND_PickChannel
=================
*/
channel_t *SND_PickChannel(soundcardinfo_t *sc, int entnum, int entchannel)
{
int ch_idx;
int first_to_die;
int life_left;
// Check for replacement sound, or find the best one to replace
first_to_die = -1;
life_left = 0x7fffffff;
for (ch_idx=NUM_AMBIENTS + NUM_MUSICS; ch_idx < NUM_AMBIENTS + NUM_MUSICS + MAX_DYNAMIC_CHANNELS ; ch_idx++)
{
if (entchannel != 0 // channel 0 never overrides
&& sc->channel[ch_idx].entnum == entnum
&& (sc->channel[ch_idx].entchannel == entchannel || entchannel == -1) && sc->channel[ch_idx].end > snd_speed/10)
{ // always override sound from same entity
first_to_die = ch_idx;
break;
}
// don't let monster sounds override player sounds
if (sc->channel[ch_idx].entnum == cl.playernum[0]+1 && entnum != cl.playernum[0]+1 && sc->channel[ch_idx].sfx)
continue;
if (sc->channel[ch_idx].end < life_left)
{
life_left = sc->channel[ch_idx].end;
first_to_die = ch_idx;
}
}
if (first_to_die == -1)
return NULL;
if (sc->channel[first_to_die].sfx)
sc->channel[first_to_die].sfx = NULL;
return &sc->channel[first_to_die];
}
/*
=================
SND_Spatialize
=================
*/
void SND_Spatialize(soundcardinfo_t *sc, channel_t *ch)
{
vec_t dotright, dotforward, dotup;
vec_t dist;
vec_t scale;
vec3_t source_vec;
sfx_t *snd;
int i;
// anything coming from the view entity will always be full volume
if (ch->entnum == -1 || ch->entnum == cl.playernum[0]+1)
{
for (i = 0; i < sc->sn.numchannels; i++)
{
ch->vol[i] = ch->master_vol * snd_playersoundvolume.value;
ch->delay[i] = 0;
}
return;
}
// calculate stereo seperation and distance attenuation
snd = ch->sfx;
VectorSubtract(ch->origin, listener_origin, source_vec);
dist = VectorNormalize(source_vec) * ch->dist_mult;
dotright = DotProduct(listener_right, source_vec);
dotforward = DotProduct(listener_forward, source_vec);
dotup = DotProduct(listener_up, source_vec);
for (i = 0; i < sc->sn.numchannels; i++)
{
scale = 1 + (dotright*sin(sc->yaw[i]*M_PI/180) + dotforward*cos(sc->yaw[i]*M_PI/180));// - dotup*cos(sc->pitch[0])*2;
scale = (1.0 - dist) * scale * sc->dist[i];
ch->vol[i] = (int) (ch->master_vol * scale);
if (ch->vol[i] < 0)
ch->vol[i] = 0;
ch->delay[i] = 0;//(scale[0]-1)*1024;
}
}
// =======================================================================
// Start a sound effect
// =======================================================================
void S_StartSoundCard(soundcardinfo_t *sc, int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation, int startpos)
{
channel_t *target_chan, *check;
sfxcache_t *scache;
int vol;
int ch_idx;
int skip;
if (!sound_started)
return;
if (!sfx)
return;
if (nosound.value)
return;
vol = fvol*255;
// pick a channel to play on
target_chan = SND_PickChannel(sc, entnum, entchannel);
if (!target_chan)
return;
// spatialize
memset (target_chan, 0, sizeof(*target_chan));
if (!origin)
{
VectorCopy(listener_origin, target_chan->origin);
}
else
{
VectorCopy(origin, target_chan->origin);
}
target_chan->dist_mult = attenuation / sound_nominal_clip_dist;
target_chan->master_vol = vol;
target_chan->entnum = entnum;
target_chan->entchannel = entchannel;
SND_Spatialize(sc, target_chan);
if (!target_chan->vol[0] && !target_chan->vol[1] && !target_chan->vol[2] && !target_chan->vol[3] && !target_chan->vol[4] && !target_chan->vol[5])
return; // not audible at all
// new channel
scache = S_LoadSound (sfx);
if (!scache)
{
target_chan->sfx = NULL;
return; // couldn't load the sound's data
}
target_chan->sfx = sfx;
target_chan->pos = startpos;
target_chan->end = sc->paintedtime + scache->length;
target_chan->looping = false;
// if an identical sound has also been started this frame, offset the pos
// a bit to keep it from just making the first one louder
check = &sc->channel[NUM_AMBIENTS];
for (ch_idx=NUM_AMBIENTS + NUM_MUSICS; ch_idx < NUM_AMBIENTS + NUM_MUSICS + MAX_DYNAMIC_CHANNELS; ch_idx++, check++)
{
if (check == target_chan)
continue;
if (check->sfx == sfx && !check->pos)
{
skip = rand () % (int)(0.1*sc->sn.speed);
if (skip >= target_chan->end)
skip = target_chan->end - 1;
target_chan->pos += skip;
target_chan->end -= skip;
break;
}
}
}
void S_StartSoundDelayed(int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation, float timeofs)
{
soundcardinfo_t *sc;
if (!sfx || !*sfx->name) //no named sounds would need specific starting.
return;
for (sc = sndcardinfo; sc; sc = sc->next)
S_StartSoundCard(sc, entnum, entchannel, sfx, origin, fvol, attenuation, -(int)(timeofs * sc->sn.speed));
}
void S_StartSound(int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
{
soundcardinfo_t *sc;
if (!sfx || !*sfx->name) //no named sounds would need specific starting.
return;
for (sc = sndcardinfo; sc; sc = sc->next)
S_StartSoundCard(sc, entnum, entchannel, sfx, origin, fvol, attenuation, 0);
}
qboolean S_IsPlayingSomewhere(sfx_t *s)
{
soundcardinfo_t *si;
int i;
for (si = sndcardinfo; si; si=si->next)
{
for (i = 0; i < si->total_chans; i++)
if (si->channel[i].sfx == s)
return true;
}
return false;
}
void S_StopSoundCard(soundcardinfo_t *sc, int entnum, int entchannel)
{
int i;
for (i=0 ; i<sc->total_chans ; i++)
{
if (sc->channel[i].entnum == entnum
&& sc->channel[i].entchannel == entchannel)
{
sc->channel[i].end = 0;
sc->channel[i].sfx = NULL;
return;
}
}
}
void S_StopSound(int entnum, int entchannel)
{
soundcardinfo_t *sc;
for (sc = sndcardinfo; sc; sc = sc->next)
S_StopSoundCard(sc, entnum, entchannel);
}
void S_StopAllSounds(qboolean clear)
{
int i;
sfx_t *s;
soundcardinfo_t *sc;
for (sc = sndcardinfo; sc; sc = sc->next)
{
if (!sound_started)
return;
for (i=0 ; i<sc->total_chans ; i++)
if (sc->channel[i].sfx)
{
s = sc->channel[i].sfx;
sc->channel[i].sfx = NULL;
if (s->decoder)
if (!S_IsPlayingSomewhere(s)) //if we aint playing it elsewhere, free it compleatly.
{
s->decoder->abort(s);
}
}
sc->total_chans = MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS + NUM_MUSICS; // no statics
Q_memset(sc->channel, 0, MAX_CHANNELS * sizeof(channel_t));
if (clear)
S_ClearBuffer (sc);
}
}
void S_StopAllSoundsC (void)
{
S_StopAllSounds (true);
}
void S_ClearBuffer (soundcardinfo_t *sc)
{
void *buffer;
int clear;
if (!sound_started || !sc->sn.buffer)
return;
if (sc->sn.samplebits == 8)
clear = 0x80;
else
clear = 0;
buffer = sc->Lock(sc);
if (buffer)
{
Q_memset(sc->sn.buffer, clear, sc->sn.samples * sc->sn.samplebits/8);
sc->Unlock(sc, buffer);
}
}
/*
=================
S_StaticSound
=================
*/
void S_StaticSound (sfx_t *sfx, vec3_t origin, float vol, float attenuation)
{
channel_t *ss;
sfxcache_t *scache;
soundcardinfo_t *scard;
if (!sfx)
return;
for (scard = sndcardinfo; scard; scard = scard->next)
{
if (scard->total_chans == MAX_CHANNELS)
{
Con_Printf ("total_channels == MAX_CHANNELS\n");
continue;
}
ss = &scard->channel[scard->total_chans];
scard->total_chans++;
scache = S_LoadSound (sfx);
if (!scache)
return;
if (scache->loopstart == -1)
{
Con_Printf ("Ambient sound %s not looped\n", sfx->name);
scache->loopstart = 0;
}
ss->sfx = sfx;
VectorCopy (origin, ss->origin);
ss->master_vol = vol;
ss->dist_mult = (attenuation/64) / sound_nominal_clip_dist;
ss->end = scard->paintedtime + scache->length;
ss->looping = true;
SND_Spatialize (scard, ss);
}
}
//=============================================================================
/*
===================
S_UpdateAmbientSounds
===================
*/
char *Media_NextTrack(void);
mleaf_t *Q1BSP_LeafForPoint (model_t *model, vec3_t p);
void S_UpdateAmbientSounds (soundcardinfo_t *sc)
{
mleaf_t *l;
float vol;
int ambient_channel;
channel_t *chan;
int i;
if (!snd_ambient)
return;
for (i = NUM_AMBIENTS; i < NUM_AMBIENTS + NUM_MUSICS; i++)
{
chan = &sc->channel[i];
if (!chan->sfx)
{
char *nexttrack = Media_NextTrack();
sfxcache_t *scache;
sfx_t *newmusic;
if (nexttrack && *nexttrack)
{
newmusic = S_PrecacheSound(nexttrack);
scache = S_LoadSound (newmusic);
if (scache)
{
chan->sfx = newmusic;
chan->pos = 0;
chan->end = sc->paintedtime + scache->length+1000;
chan->vol[0] = chan->vol[1] = chan->vol[2] = chan->vol[3] = chan->vol[4] = chan->vol[5] = chan->master_vol = 100;
}
}
}
if (chan->sfx)
chan->vol[0] = chan->vol[1] = chan->vol[2] = chan->vol[3] = chan->vol[4] = chan->vol[5] = chan->master_vol = (255/volume.value)*bgmvolume.value;
}
// calc ambient sound levels
if (!cl.worldmodel || cl.worldmodel->type != mod_brush || cl.worldmodel->fromgame != fg_quake)
return;
l = Q1BSP_LeafForPoint(cl.worldmodel, listener_origin);
if (!l || !ambient_level.value)
{
for (ambient_channel = 0 ; ambient_channel< NUM_AMBIENTS ; ambient_channel++)
sc->channel[ambient_channel].sfx = NULL;
return;
}
for (ambient_channel = 0 ; ambient_channel< NUM_AMBIENTS ; ambient_channel++)
{
chan = &sc->channel[ambient_channel];
chan->sfx = ambient_sfx[ambient_channel];
VectorCopy(listener_origin, chan->origin);
vol = ambient_level.value * l->ambient_sound_level[ambient_channel];
if (vol < 8)
vol = 0;
// don't adjust volume too fast
if (chan->master_vol < vol)
{
chan->master_vol += host_frametime * ambient_fade.value;
if (chan->master_vol > vol)
chan->master_vol = vol;
}
else if (chan->master_vol > vol)
{
chan->master_vol -= host_frametime * ambient_fade.value;
if (chan->master_vol < vol)
chan->master_vol = vol;
}
chan->vol[0] = chan->vol[1] = chan->vol[2] = chan->vol[3] = chan->vol[4] = chan->vol[5] = chan->master_vol;
}
}
/*
============
S_Update
Called once each time through the main loop
============
*/
void S_Update(vec3_t origin, vec3_t forward, vec3_t right, vec3_t up)
{
soundcardinfo_t *sc;
VectorCopy(origin, listener_origin);
VectorCopy(forward, listener_forward);
VectorCopy(right, listener_right);
VectorCopy(up, listener_up);
S_RunCapture();
for (sc = sndcardinfo; sc; sc = sc->next)
S_UpdateCard(sc);
}
void S_UpdateCard(soundcardinfo_t *sc)
{
int i, j;
int total;
channel_t *ch;
channel_t *combine;
if (!sound_started)
return;
if ((snd_blocked > 0))
{
if (!sc->inactive_sound)
return;
}
// update general area ambient sound sources
S_UpdateAmbientSounds (sc);
combine = NULL;
// update spatialization for static and dynamic sounds
ch = sc->channel+NUM_AMBIENTS+NUM_MUSICS;
for (i=NUM_AMBIENTS+ NUM_MUSICS ; i<sc->total_chans; i++, ch++)
{
if (!ch->sfx)
continue;
SND_Spatialize(sc, ch); // respatialize channel
if (!ch->vol[0] && !ch->vol[1] && !ch->vol[2] && !ch->vol[3] && !ch->vol[4] && !ch->vol[5])
continue;
// try to combine static sounds with a previous channel of the same
// sound effect so we don't mix five torches every frame
if (i > MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS + NUM_MUSICS)
{
// see if it can just use the last one
if (combine && combine->sfx == ch->sfx)
{
combine->vol[0] += ch->vol[0];
combine->vol[1] += ch->vol[1];
combine->vol[2] += ch->vol[2];
combine->vol[3] += ch->vol[3];
combine->vol[4] += ch->vol[4];
combine->vol[5] += ch->vol[5];
ch->vol[0] = ch->vol[1] = ch->vol[2] = ch->vol[3] = ch->vol[4] = ch->vol[5] = 0;
continue;
}
// search for one
combine = sc->channel+MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS + NUM_MUSICS;
for (j=MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS+ NUM_MUSICS ; j<i; j++, combine++)
if (combine->sfx == ch->sfx)
break;
if (j == sc->total_chans)
{
combine = NULL;
}
else
{
if (combine != ch)
{
combine->vol[0] += ch->vol[0];
combine->vol[1] += ch->vol[1];
combine->vol[2] += ch->vol[2];
combine->vol[3] += ch->vol[3];
combine->vol[4] += ch->vol[4];
combine->vol[5] += ch->vol[5];
ch->vol[0] = ch->vol[1] = ch->vol[2] = ch->vol[3] = ch->vol[4] = ch->vol[5] = 0;
}
continue;
}
}
}
//
// debugging output
//
if (snd_show.value)
{
total = 0;
ch = sc->channel;
for (i=0 ; i<sc->total_chans; i++, ch++)
if (ch->sfx && (ch->vol[0] || ch->vol[1]) )
{
// Con_Printf ("%i, %i %i %i %i %i %i %s\n", i, ch->vol[0], ch->vol[1], ch->vol[2], ch->vol[3], ch->vol[4], ch->vol[5], ch->sfx->name);
total++;
}
Con_Printf ("----(%i)----\n", total);
}
// mix some sound
S_Update_(sc);
}
void GetSoundtime(soundcardinfo_t *sc)
{
int samplepos;
int fullsamples;
fullsamples = sc->sn.samples / sc->sn.numchannels;
// it is possible to miscount buffers if it has wrapped twice between
// calls to S_Update. Oh well.
samplepos = sc->GetDMAPos(sc);
if (samplepos < sc->oldsamplepos)
{
sc->buffers++; // buffer wrapped
if (sc->paintedtime > 0x40000000)
{ // time to chop things off to avoid 32 bit limits
sc->buffers = 0;
sc->paintedtime = fullsamples;
S_StopAllSounds (true);
}
}
sc->oldsamplepos = samplepos;
soundtime = sc->buffers*fullsamples + samplepos/sc->sn.numchannels;
}
void S_ExtraUpdate (void)
{
soundcardinfo_t *sc;
if (!sound_started)
return;
#ifdef _WIN32
IN_Accumulate ();
#endif
if (snd_noextraupdate.value)
return; // don't pollute timings
S_RunCapture();
for (sc = sndcardinfo; sc; sc = sc->next)
S_Update_(sc);
}
void S_Update_(soundcardinfo_t *sc)
{
unsigned endtime;
int samps;
if (sc->selfpainting)
return;
if ((snd_blocked > 0))
{
if (!sc->inactive_sound)
return;
}
// Updates DMA time
GetSoundtime(sc);
// check to make sure that we haven't overshot
if (sc->paintedtime < soundtime)
{
//Con_Printf ("S_Update_ : overflow\n");
sc->paintedtime = soundtime;
}
// mix ahead of current position
endtime = soundtime + (int)(_snd_mixahead.value * sc->sn.speed);
// samps = shm->samples >> (shm->numchannels-1);
samps = sc->sn.samples / sc->sn.numchannels;
if (endtime - soundtime > samps)
endtime = soundtime + samps;
if (sc->Restore)
sc->Restore(sc);
S_PaintChannels (sc, endtime);
sc->Submit(sc);
}
/*
===============================================================================
console functions
===============================================================================
*/
void S_Play(void)
{
// static int hash=345;
int i;
char name[256];
sfx_t *sfx;
i = 1;
while (i<Cmd_Argc())
{
if (!Q_strrchr(Cmd_Argv(i), '.'))
{
Q_strncpyz(name, Cmd_Argv(i), sizeof(name)-4);
Q_strcat(name, ".wav");
}
else
Q_strncpyz(name, Cmd_Argv(i), sizeof(name));
sfx = S_PrecacheSound(name);
S_StartSound(cl.playernum[0]+1, -1, sfx, vec3_origin, 1.0, 0.0);
// hash++;
i++;
}
}
void S_PlayVol(void)
{
// static int hash=543;
int i;
float vol;
char name[256];
sfx_t *sfx;
i = 1;
while (i<Cmd_Argc())
{
if (!Q_strrchr(Cmd_Argv(i), '.'))
{
Q_strncpy(name, Cmd_Argv(i), sizeof(name)-4);
Q_strcat(name, ".wav");
}
else
Q_strncpy(name, Cmd_Argv(i), sizeof(name));
sfx = S_PrecacheSound(name);
vol = Q_atof(Cmd_Argv(i+1));
S_StartSound(cl.playernum[0]+1, -1, sfx, vec3_origin, vol, 0.0);
// hash;
i+=2;
}
}
void S_SoundList(void)
{
int i;
sfx_t *sfx;
sfxcache_t *sc;
int size, total;
total = 0;
for (sfx=known_sfx, i=0 ; i<num_sfx ; i++, sfx++)
{
sc = Cache_Check (&sfx->cache);
if (!sc)
continue;
size = sc->length*sc->width*(sc->numchannels);
total += size;
if (sc->loopstart >= 0)
Con_Printf ("L");
else
Con_Printf (" ");
Con_Printf("(%2db) %6i : %s\n",sc->width*8, size, sfx->name);
}
Con_Printf ("Total resident: %i\n", total);
}
void S_LocalSound (char *sound)
{
sfx_t *sfx;
if (nosound.value)
return;
if (!sound_started)
return;
sfx = S_PrecacheSound (sound);
if (!sfx)
{
Con_Printf ("S_LocalSound: can't cache %s\n", sound);
return;
}
S_StartSound (-1, -1, sfx, vec3_origin, 1, 1);
}
void S_ClearPrecache (void)
{
}
void S_BeginPrecaching (void)
{
}
void S_EndPrecaching (void)
{
}
typedef struct {
qboolean inuse;
int id;
sfx_t sfx;
sfxcache_t *sfxcache;
} streaming_t;
#define MAX_RAW_SOURCES (MAX_CLIENTS+1)
streaming_t s_streamers[MAX_RAW_SOURCES];
/*
qboolean S_IsPlayingSomewhere(sfx_t *s)
{
soundcardinfo_t *si;
int i;
for (si = sndcardinfo; si; si=si->next)
{
for (i = 0; i < MAX_CHANNELS; i++)
if (si->channel[i].sfx == s)
return true;
}
return false;
}*/
#undef free
void S_ClearRaw(void)
{
memset(s_streamers, 0, sizeof(s_streamers));
}
//streaming audio. //this is useful when there is one source, and the sound is to be played with no attenuation
void S_RawAudio(int sourceid, qbyte *data, int speed, int samples, int channels, int width)
{
soundcardinfo_t *si;
int i;
int prepadl;
int oldlength;
int spare;
int outsamples;
double speedfactor;
sfxcache_t *newcache;
streaming_t *s, *free=NULL;
for (s = s_streamers, i = 0; i < MAX_RAW_SOURCES; i++, s++)
{
if (!s->inuse)
{
free = s;
continue;
}
if (s->id == sourceid)
break;
}
if (!data)
{
if (i == MAX_RAW_SOURCES)
return; //wierd, it wasn't even playing.
s->sfxcache->loopstart = -1; //stop mixing it
s->inuse = false;
for (si = sndcardinfo; si; si=si->next)
for (i = 0; i < MAX_CHANNELS; i++)
if (si->channel[i].sfx == &s->sfx)
{
si->channel[i].sfx = NULL;
break;
}
BZ_Free(s->sfxcache);
return;
}
if (i == MAX_RAW_SOURCES) //whoops.
{
if (!free)
{
Con_Printf("No free audio streams\n");
return;
}
s = free;
free->id = sourceid;
free->inuse = true;
free->sfx.cache.fake = true;
strcpy(free->sfx.name, "");
free->sfxcache = BZ_Malloc(sizeof(sfxcache_t));
free->sfx.cache.data = free->sfxcache;
free->sfxcache->speed = snd_speed;
free->sfxcache->numchannels = channels;
free->sfxcache->width = width;
free->sfxcache->loopstart = -1;
free->sfxcache->length = 0;
// Con_Printf("Added new raw stream\n");
}
if (s->sfxcache->width != width || s->sfxcache->numchannels != channels || s->sfxcache->speed != snd_speed)
{
s->sfxcache->width = width;
s->sfxcache->numchannels = channels;
s->sfxcache->speed = snd_speed;
s->sfxcache->length = 0;
// Con_Printf("Restarting raw stream\n");
}
speedfactor = (double)speed/snd_speed;
outsamples = samples/speedfactor;
oldlength = s->sfxcache->length;
prepadl = 0x7fffffff;
for (si = sndcardinfo; si; si=si->next) //make sure all cards are playing, and that we still get a prepad if just one is.
{
for (i = 0; i < si->total_chans; i++)
if (si->channel[i].sfx == &s->sfx)
{
if (prepadl > si->channel[i].pos)
prepadl = si->channel[i].pos;
break;
}
}
if (prepadl == 0x7fffffff)
{
if (snd_show.value)
Con_Printf("Wasn't playing\n");
prepadl = 0;
spare = s->sfxcache->length;
if (spare > snd_speed)
{
Con_DPrintf("Sacrificed raw sound stream\n");
spare = 0; //too far out. sacrifice it all
}
}
else
{
spare = s->sfxcache->length - prepadl;
if (spare < 0) //remaining samples since last time
spare = 0;
if (s->sfxcache->length > snd_speed*2) // more than 2 seconds of sound
{
Con_DPrintf("Sacrificed raw sound stream\n");
spare = 0; //too far out. sacrifice it all
}
}
newcache = BZ_Malloc(sizeof(sfxcache_t) + (spare+outsamples) * (s->sfxcache->numchannels) * s->sfxcache->width);
memcpy(newcache, s->sfxcache, sizeof(sfxcache_t));
memcpy(newcache->data, s->sfxcache->data + prepadl * (s->sfxcache->numchannels) * s->sfxcache->width, spare * (s->sfxcache->numchannels) * s->sfxcache->width);
BZ_Free(s->sfxcache);
s->sfxcache = s->sfx.cache.data = newcache;
newcache->length = spare + outsamples;
{
extern cvar_t snd_linearresample_stream;
short *outpos = (short *)(newcache->data + spare * (s->sfxcache->numchannels) * s->sfxcache->width);
SND_ResampleStream(data,
speed,
width,
channels,
samples,
outpos,
snd_speed,
s->sfxcache->width,
s->sfxcache->numchannels,
(int)snd_linearresample_stream.value);
}
s->sfxcache->loopstart = s->sfxcache->length;
for (si = sndcardinfo; si; si=si->next)
{
for (i = 0; i < si->total_chans; i++)
if (si->channel[i].sfx == &s->sfx)
{
si->channel[i].pos -= prepadl;
// si->channel[i].end -= prepadl;
si->channel[i].end += outsamples;
if (si->channel[i].end < si->paintedtime)
{
si->channel[i].pos = 0;
si->channel[i].end = si->paintedtime + s->sfxcache->length;
}
break;
}
if (i == si->total_chans) //this one wasn't playing.
{
S_StartSoundCard(si, -1, 0, &s->sfx, r_origin, 1, 32767, 500);
// Con_Printf("Restarted\n");
}
}
// Con_Printf("Stripped %i, added %i (length %i)\n", prepadl, samples, s->sfxcache->length);
}
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