2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 // snd_main.c -- main control for any streaming sound output device
27 #if SND_LISTENERS != 8
28 #error this data only supports up to 8 channel, update it!
30 typedef struct listener_s
38 typedef struct speakerlayout_s
41 unsigned int channels;
43 listener_t listeners[SND_LISTENERS];
47 static speakerlayout_t snd_speakerlayout;
52 void S_SoundList(void);
56 // =======================================================================
57 // Internal sound data & structures
58 // =======================================================================
60 channel_t channels[MAX_CHANNELS];
61 unsigned int total_channels;
64 cvar_t snd_initialized = { CVAR_READONLY, "snd_initialized", "0"};
65 cvar_t snd_streaming = { CVAR_SAVE, "snd_streaming", "1"};
66 cvar_t snd_headphones = { CVAR_SAVE, "snd_headphones", "0"};
68 volatile dma_t *shm = 0;
71 vec3_t listener_origin;
72 matrix4x4_t listener_matrix[SND_LISTENERS];
73 vec_t sound_nominal_clip_dist=1000.0;
74 mempool_t *snd_mempool;
79 // Linked list of known sfx
80 sfx_t *known_sfx = NULL;
82 qboolean sound_started = false;
83 qboolean sound_spatialized = false;
85 // Fake dma is a synchronous faking of the DMA progress used for
86 // isolating performance in the renderer.
87 qboolean fakedma = false;
89 cvar_t bgmvolume = {CVAR_SAVE, "bgmvolume", "1"};
90 cvar_t volume = {CVAR_SAVE, "volume", "0.7"};
91 cvar_t snd_staticvolume = {CVAR_SAVE, "snd_staticvolume", "1"};
93 cvar_t nosound = {0, "nosound", "0"};
94 cvar_t snd_precache = {0, "snd_precache", "1"};
95 cvar_t bgmbuffer = {0, "bgmbuffer", "4096"};
96 cvar_t ambient_level = {0, "ambient_level", "0.3"};
97 cvar_t ambient_fade = {0, "ambient_fade", "100"};
98 cvar_t snd_noextraupdate = {0, "snd_noextraupdate", "0"};
99 cvar_t snd_show = {0, "snd_show", "0"};
100 cvar_t _snd_mixahead = {CVAR_SAVE, "_snd_mixahead", "0.1"};
101 cvar_t snd_swapstereo = {CVAR_SAVE, "snd_swapstereo", "0"};
104 sfx_t* ambient_sfxs [2] = { NULL, NULL };
105 const char* ambient_names [2] = { "sound/ambience/water1.wav", "sound/ambience/wind2.wav" };
108 // ====================================================================
110 // ====================================================================
112 void S_FreeSfx (sfx_t *sfx, qboolean force);
115 void S_SoundInfo_f(void)
119 Con_Print("sound system not started\n");
123 Con_Printf("%5d speakers\n", shm->format.channels);
124 Con_Printf("%5d frames\n", shm->sampleframes);
125 Con_Printf("%5d samples\n", shm->samples);
126 Con_Printf("%5d samplepos\n", shm->samplepos);
127 Con_Printf("%5d samplebits\n", shm->format.width * 8);
128 Con_Printf("%5d speed\n", shm->format.speed);
129 Con_Printf("%p dma buffer\n", shm->buffer);
130 Con_Printf("%5u total_channels\n", total_channels);
136 if (!snd_initialized.integer)
140 memset((void *)shm, 0, sizeof(*shm));
142 // create a piece of DMA memory
145 shm->format.width = 2;
146 shm->format.speed = 22050;
147 shm->format.channels = 2;
148 shm->sampleframes = 16384;
149 shm->samples = shm->sampleframes * shm->format.channels;
151 shm->buffer = (unsigned char *)Mem_Alloc(snd_mempool, shm->samples * shm->format.width);
157 Con_Print("S_Startup: SNDDMA_Init failed.\n");
159 sound_started = false;
160 sound_spatialized = false;
165 sound_started = true;
167 Con_Printf("Sound format: %dHz, %d bit, %d channels\n", shm->format.speed,
168 shm->format.width * 8, shm->format.channels);
171 void S_Shutdown(void)
177 Mem_Free(shm->buffer);
182 sound_started = false;
183 sound_spatialized = false;
186 void S_Restart_f(void)
199 Con_DPrint("\nSound Initialization\n");
201 Cvar_RegisterVariable(&volume);
202 Cvar_RegisterVariable(&bgmvolume);
203 Cvar_RegisterVariable(&snd_staticvolume);
204 Cvar_RegisterVariable(&snd_headphones);
206 // COMMANDLINEOPTION: Sound: -nosound disables sound (including CD audio)
207 if (COM_CheckParm("-nosound") || COM_CheckParm("-safe"))
210 snd_mempool = Mem_AllocPool("sound", 0, NULL);
212 // COMMANDLINEOPTION: Sound: -simsound runs sound mixing but with no output
213 if (COM_CheckParm("-simsound"))
216 Cmd_AddCommand("play", S_Play);
217 Cmd_AddCommand("play2", S_Play2);
218 Cmd_AddCommand("playvol", S_PlayVol);
219 Cmd_AddCommand("stopsound", S_StopAllSounds);
220 Cmd_AddCommand("soundlist", S_SoundList);
221 Cmd_AddCommand("soundinfo", S_SoundInfo_f);
222 Cmd_AddCommand("snd_restart", S_Restart_f);
224 Cvar_RegisterVariable(&nosound);
225 Cvar_RegisterVariable(&snd_precache);
226 Cvar_RegisterVariable(&snd_initialized);
227 Cvar_RegisterVariable(&snd_streaming);
228 Cvar_RegisterVariable(&bgmbuffer);
229 Cvar_RegisterVariable(&ambient_level);
230 Cvar_RegisterVariable(&ambient_fade);
231 Cvar_RegisterVariable(&snd_noextraupdate);
232 Cvar_RegisterVariable(&snd_show);
233 Cvar_RegisterVariable(&_snd_mixahead);
234 Cvar_RegisterVariable(&snd_swapstereo); // for people with backwards sound wiring
236 Cvar_SetValueQuick(&snd_initialized, true);
240 total_channels = MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS; // no statics
241 memset(channels, 0, MAX_CHANNELS * sizeof(channel_t));
251 Shutdown and free all resources
254 void S_Terminate (void)
260 while (known_sfx != NULL)
261 S_FreeSfx (known_sfx, true);
263 Cvar_SetValueQuick (&snd_initialized, false);
264 Mem_FreePool (&snd_mempool);
268 // =======================================================================
270 // =======================================================================
278 sfx_t *S_FindName (const char *name)
282 if (!snd_initialized.integer)
285 if (strlen (name) >= sizeof (sfx->name))
287 Con_Printf ("S_FindName: sound name too long (%s)\n", name);
291 // Look for this sound in the list of known sfx
292 for (sfx = known_sfx; sfx != NULL; sfx = sfx->next)
293 if(!strcmp (sfx->name, name))
296 // Add a sfx_t struct for this sound
297 sfx = (sfx_t *)Mem_Alloc (snd_mempool, sizeof (*sfx));
298 memset (sfx, 0, sizeof(*sfx));
299 strlcpy (sfx->name, name, sizeof (sfx->name));
300 sfx->memsize = sizeof(*sfx);
301 sfx->next = known_sfx;
314 void S_FreeSfx (sfx_t *sfx, qboolean force)
318 // Never free a locked sfx unless forced
319 if (!force && (sfx->locks > 0 || (sfx->flags & SFXFLAG_PERMANENTLOCK)))
322 Con_DPrintf ("S_FreeSfx: freeing %s\n", sfx->name);
324 // Remove it from the list of known sfx
325 if (sfx == known_sfx)
326 known_sfx = known_sfx->next;
331 for (prev_sfx = known_sfx; prev_sfx != NULL; prev_sfx = prev_sfx->next)
332 if (prev_sfx->next == sfx)
334 prev_sfx->next = sfx->next;
337 if (prev_sfx == NULL)
339 Con_Printf ("S_FreeSfx: Can't find SFX %s in the list!\n", sfx->name);
344 // Stop all channels using this sfx
345 for (i = 0; i < total_channels; i++)
346 if (channels[i].sfx == sfx)
350 if (sfx->fetcher != NULL && sfx->fetcher->free != NULL)
351 sfx->fetcher->free (sfx);
362 void S_ServerSounds (char serversound [][MAX_QPATH], unsigned int numsounds)
368 // Start the ambient sounds and make them loop
369 for (i = 0; i < sizeof (ambient_sfxs) / sizeof (ambient_sfxs[0]); i++)
371 // Precache it if it's not done (request a lock to make sure it will never be freed)
372 if (ambient_sfxs[i] == NULL)
373 ambient_sfxs[i] = S_PrecacheSound (ambient_names[i], false, true);
374 if (ambient_sfxs[i] != NULL)
376 // Add a lock to the SFX while playing. It will be
377 // removed by S_StopAllSounds at the end of the level
378 S_LockSfx (ambient_sfxs[i]);
380 channels[i].sfx = ambient_sfxs[i];
381 channels[i].flags |= CHANNELFLAG_FORCELOOP;
382 channels[i].master_vol = 0;
386 // Remove 1 lock from all sfx with the SFXFLAG_SERVERSOUND flag, and remove the flag
387 for (sfx = known_sfx; sfx != NULL; sfx = sfx->next)
388 if (sfx->flags & SFXFLAG_SERVERSOUND)
391 sfx->flags &= ~SFXFLAG_SERVERSOUND;
394 // Add 1 lock and the SFXFLAG_SERVERSOUND flag to each sfx in "serversound"
395 for (i = 1; i < numsounds; i++)
397 sfx = S_FindName (serversound[i]);
401 sfx->flags |= SFXFLAG_SERVERSOUND;
405 // Free all unlocked sfx
406 for (sfx = known_sfx;sfx;sfx = sfxnext)
409 S_FreeSfx (sfx, false);
420 sfx_t *S_PrecacheSound (const char *name, qboolean complain, qboolean lock)
424 if (!snd_initialized.integer)
427 sfx = S_FindName (name);
434 if (!nosound.integer && snd_precache.integer)
435 S_LoadSound(sfx, complain);
447 void S_LockSfx (sfx_t *sfx)
456 Remove a lock from a SFX
459 void S_UnlockSfx (sfx_t *sfx)
465 //=============================================================================
471 Picks a channel based on priorities, empty slots, number of channels
474 channel_t *SND_PickChannel(int entnum, int entchannel)
481 // Check for replacement sound, or find the best one to replace
483 life_left = 0x7fffffff;
484 for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++)
486 ch = &channels[ch_idx];
489 // try to override an existing channel
490 if (ch->entnum == entnum && (ch->entchannel == entchannel || entchannel == -1) )
492 // always override sound from same entity
493 first_to_die = ch_idx;
501 // no sound on this channel
502 first_to_die = ch_idx;
509 // don't let monster sounds override player sounds
510 if (ch->entnum == cl.viewentity && entnum != cl.viewentity)
513 // don't override looped sounds
514 if ((ch->flags & CHANNELFLAG_FORCELOOP) || ch->sfx->loopstart >= 0)
518 if (ch->end - paintedtime < life_left)
520 life_left = ch->end - paintedtime;
521 first_to_die = ch_idx;
525 if (first_to_die == -1)
528 S_StopChannel (first_to_die);
530 return &channels[first_to_die];
537 Spatializes a channel
540 void SND_Spatialize(channel_t *ch, qboolean isstatic)
543 vec_t dist, mastervol, intensity, vol;
546 // update sound origin if we know about the entity
547 if (ch->entnum > 0 && cls.state == ca_connected && cl_entities[ch->entnum].state_current.active)
549 //Con_Printf("-- entnum %i origin %f %f %f neworigin %f %f %f\n", ch->entnum, ch->origin[0], ch->origin[1], ch->origin[2], cl_entities[ch->entnum].state_current.origin[0], cl_entities[ch->entnum].state_current.origin[1], cl_entities[ch->entnum].state_current.origin[2]);
550 VectorCopy(cl_entities[ch->entnum].state_current.origin, ch->origin);
551 if (cl_entities[ch->entnum].state_current.modelindex && cl.model_precache[cl_entities[ch->entnum].state_current.modelindex] && cl.model_precache[cl_entities[ch->entnum].state_current.modelindex]->soundfromcenter)
552 VectorMAMAM(1.0f, ch->origin, 0.5f, cl.model_precache[cl_entities[ch->entnum].state_current.modelindex]->normalmins, 0.5f, cl.model_precache[cl_entities[ch->entnum].state_current.modelindex]->normalmaxs, ch->origin);
555 mastervol = ch->master_vol;
556 // Adjust volume of static sounds
558 mastervol *= snd_staticvolume.value;
560 // anything coming from the view entity will always be full volume
561 // LordHavoc: make sounds with ATTN_NONE have no spatialization
562 if (ch->entnum == cl.viewentity || ch->dist_mult == 0)
564 for (i = 0;i < SND_LISTENERS;i++)
566 vol = mastervol * snd_speakerlayout.listeners[i].ambientvolume;
567 ch->listener_volume[i] = bound(0, vol, 255);
572 // calculate stereo seperation and distance attenuation
573 VectorSubtract(listener_origin, ch->origin, source_vec);
574 dist = VectorLength(source_vec);
575 intensity = mastervol * (1.0 - dist * ch->dist_mult);
578 for (i = 0;i < SND_LISTENERS;i++)
580 Matrix4x4_Transform(&listener_matrix[i], ch->origin, source_vec);
581 VectorNormalize(source_vec);
582 vol = intensity * max(0, source_vec[0] * snd_speakerlayout.listeners[i].dotscale + snd_speakerlayout.listeners[i].dotbias);
583 ch->listener_volume[i] = bound(0, vol, 255);
587 for (i = 0;i < SND_LISTENERS;i++)
588 ch->listener_volume[i] = 0;
593 // =======================================================================
594 // Start a sound effect
595 // =======================================================================
597 void S_PlaySfxOnChannel (sfx_t *sfx, channel_t *target_chan, unsigned int flags, vec3_t origin, float fvol, float attenuation, qboolean isstatic)
599 // Initialize the channel
600 memset (target_chan, 0, sizeof (*target_chan));
601 VectorCopy (origin, target_chan->origin);
602 target_chan->master_vol = fvol * 255;
603 target_chan->sfx = sfx;
604 target_chan->end = paintedtime + sfx->total_length;
605 target_chan->lastptime = paintedtime;
606 target_chan->flags = flags;
608 // If it's a static sound
611 if (sfx->loopstart == -1)
612 Con_DPrintf("Quake compatibility warning: Static sound \"%s\" is not looped\n", sfx->name);
613 target_chan->dist_mult = attenuation / (64.0f * sound_nominal_clip_dist);
616 target_chan->dist_mult = attenuation / sound_nominal_clip_dist;
618 // Lock the SFX during play
623 int S_StartSound (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
625 channel_t *target_chan, *check;
629 if (!sound_started || !sfx || nosound.integer)
633 Con_DPrintf ("S_StartSound: \"%s\" hasn't been precached\n", sfx->name);
637 if (entnum && entnum >= cl_max_entities)
638 CL_ExpandEntities(entnum);
640 // Pick a channel to play on
641 target_chan = SND_PickChannel(entnum, entchannel);
645 S_PlaySfxOnChannel (sfx, target_chan, CHANNELFLAG_NONE, origin, fvol, attenuation, false);
646 target_chan->entnum = entnum;
647 target_chan->entchannel = entchannel;
649 SND_Spatialize(target_chan, false);
651 // if an identical sound has also been started this frame, offset the pos
652 // a bit to keep it from just making the first one louder
653 check = &channels[NUM_AMBIENTS];
654 for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++, check++)
656 if (check == target_chan)
658 if (check->sfx == sfx && !check->pos)
660 skip = 0.1 * sfx->format.speed;
661 if (skip > (int)sfx->total_length)
662 skip = (int)sfx->total_length;
664 skip = rand() % skip;
665 target_chan->pos += skip;
666 target_chan->end -= skip;
671 return (target_chan - channels);
674 void S_StopChannel (unsigned int channel_ind)
678 if (channel_ind >= total_channels)
681 ch = &channels[channel_ind];
684 sfx_t *sfx = ch->sfx;
686 if (sfx->fetcher != NULL)
688 snd_fetcher_endsb_t fetcher_endsb = sfx->fetcher->endsb;
689 if (fetcher_endsb != NULL)
693 // Remove the lock it holds
702 qboolean S_SetChannelFlag (unsigned int ch_ind, unsigned int flag, qboolean value)
704 if (ch_ind >= total_channels)
707 if (flag != CHANNELFLAG_FORCELOOP &&
708 flag != CHANNELFLAG_PAUSED &&
709 flag != CHANNELFLAG_FULLVOLUME)
713 channels[ch_ind].flags |= flag;
715 channels[ch_ind].flags &= ~flag;
720 void S_StopSound(int entnum, int entchannel)
724 for (i = 0; i < MAX_DYNAMIC_CHANNELS; i++)
725 if (channels[i].entnum == entnum && channels[i].entchannel == entchannel)
732 void S_StopAllSounds (void)
740 for (i = 0; i < total_channels; i++)
743 total_channels = MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS; // no statics
744 memset(channels, 0, MAX_CHANNELS * sizeof(channel_t));
746 // Clear sound buffer
747 pbuf = (unsigned char *)S_LockBuffer();
750 int setsize = shm->samples * shm->format.width;
751 int clear = (shm->format.width == 1) ? 0x80 : 0;
753 // FIXME: is it (still) true? (check with OSS and ALSA)
754 // on i586/i686 optimized versions of glibc, glibc *wrongly* IMO,
755 // reads the memory area before writing to it causing a seg fault
756 // since the memory is PROT_WRITE only and not PROT_READ|PROT_WRITE
757 //memset(shm->buffer, clear, shm->samples * shm->format.width);
765 void S_PauseGameSounds (qboolean toggle)
769 for (i = 0; i < total_channels; i++)
774 if (ch->sfx != NULL && ! (ch->flags & CHANNELFLAG_LOCALSOUND))
775 S_SetChannelFlag (i, CHANNELFLAG_PAUSED, toggle);
779 void S_SetChannelVolume (unsigned int ch_ind, float fvol)
781 channels[ch_ind].master_vol = fvol * 255;
790 void S_StaticSound (sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
792 channel_t *target_chan;
794 if (!sound_started || !sfx || nosound.integer)
798 Con_DPrintf ("S_StaticSound: \"%s\" hasn't been precached\n", sfx->name);
802 if (total_channels == MAX_CHANNELS)
804 Con_Print("S_StaticSound: total_channels == MAX_CHANNELS\n");
808 target_chan = &channels[total_channels++];
809 S_PlaySfxOnChannel (sfx, target_chan, CHANNELFLAG_FORCELOOP, origin, fvol, attenuation, true);
811 SND_Spatialize (target_chan, true);
815 //=============================================================================
819 S_UpdateAmbientSounds
823 void S_UpdateAmbientSounds (void)
829 unsigned char ambientlevels[NUM_AMBIENTS];
831 memset(ambientlevels, 0, sizeof(ambientlevels));
832 if (cl.worldmodel && cl.worldmodel->brush.AmbientSoundLevelsForPoint)
833 cl.worldmodel->brush.AmbientSoundLevelsForPoint(cl.worldmodel, listener_origin, ambientlevels, sizeof(ambientlevels));
835 // Calc ambient sound levels
836 for (ambient_channel = 0 ; ambient_channel< NUM_AMBIENTS ; ambient_channel++)
838 chan = &channels[ambient_channel];
839 if (chan->sfx == NULL || chan->sfx->fetcher == NULL)
842 vol = ambientlevels[ambient_channel];
846 // Don't adjust volume too fast
847 if (chan->master_vol < vol)
849 chan->master_vol += host_realframetime * ambient_fade.value;
850 if (chan->master_vol > vol)
851 chan->master_vol = vol;
853 else if (chan->master_vol > vol)
855 chan->master_vol -= host_realframetime * ambient_fade.value;
856 if (chan->master_vol < vol)
857 chan->master_vol = vol;
860 for (i = 0;i < SND_LISTENERS;i++)
861 chan->listener_volume[i] = (int)(chan->master_vol * ambient_level.value * snd_speakerlayout.listeners[i].ambientvolume);
865 #define SND_SPEAKERLAYOUTS 5
866 static speakerlayout_t snd_speakerlayouts[SND_SPEAKERLAYOUTS] =
869 "surround71", 8, false,
871 {45, 0.2, 0.2, 0.5}, // front left
872 {315, 0.2, 0.2, 0.5}, // front right
873 {135, 0.2, 0.2, 0.5}, // rear left
874 {225, 0.2, 0.2, 0.5}, // rear right
875 {0, 0.2, 0.2, 0.5}, // front center
876 {0, 0, 0, 0}, // lfe (we don't have any good lfe sound sources and it would take some filtering work to generate them (and they'd probably still be wrong), so... no lfe)
877 {90, 0.2, 0.2, 0.5}, // side left
878 {180, 0.2, 0.2, 0.5}, // side right
882 "surround51", 6, false,
884 {45, 0.2, 0.2, 0.5}, // front left
885 {315, 0.2, 0.2, 0.5}, // front right
886 {135, 0.2, 0.2, 0.5}, // rear left
887 {225, 0.2, 0.2, 0.5}, // rear right
888 {0, 0.2, 0.2, 0.5}, // front center
889 {0, 0, 0, 0}, // lfe (we don't have any good lfe sound sources and it would take some filtering work to generate them (and they'd probably still be wrong), so... no lfe)
895 // these systems sometimes have a subwoofer as well, but it has no
896 // channel of its own
897 "surround40", 4, false,
899 {45, 0.3, 0.3, 0.8}, // front left
900 {315, 0.3, 0.3, 0.8}, // front right
901 {135, 0.3, 0.3, 0.8}, // rear left
902 {225, 0.3, 0.3, 0.8}, // rear right
910 "headphones", 2, true,
912 {90, 0.5, 0.5, 1}, // side left
913 {270, 0.5, 0.5, 1}, // side right
923 // these systems sometimes have a subwoofer as well, but it has no
924 // channel of its own
927 {45, 0.5, 0.5, 1}, // front left
928 {315, 0.5, 0.5, 1}, // front right
943 Called once each time through the main loop
946 void S_Update(const matrix4x4_t *listenermatrix)
948 unsigned int i, j, total;
949 channel_t *ch, *combine;
950 matrix4x4_t basematrix, rotatematrix;
952 if (!snd_initialized.integer || (snd_blocked > 0))
955 Matrix4x4_Invert_Simple(&basematrix, listenermatrix);
956 Matrix4x4_OriginFromMatrix(listenermatrix, listener_origin);
958 // select speaker layout
959 for (i = 0;i < SND_SPEAKERLAYOUTS - 1;i++)
960 if (snd_speakerlayouts[i].channels == shm->format.channels && (!snd_speakerlayouts[i].headphones || snd_headphones.integer))
962 snd_speakerlayout = snd_speakerlayouts[i];
964 // calculate the current matrices
965 for (j = 0;j < SND_LISTENERS;j++)
967 Matrix4x4_CreateFromQuakeEntity(&rotatematrix, 0, 0, 0, 0, snd_speakerlayout.listeners[j].yawangle, 0, 1);
968 Matrix4x4_Concat(&listener_matrix[j], &basematrix, &rotatematrix);
971 // update general area ambient sound sources
972 S_UpdateAmbientSounds ();
976 // update spatialization for static and dynamic sounds
977 ch = channels+NUM_AMBIENTS;
978 for (i=NUM_AMBIENTS ; i<total_channels; i++, ch++)
983 // respatialize channel
984 SND_Spatialize(ch, i >= MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS);
986 // try to combine static sounds with a previous channel of the same
987 // sound effect so we don't mix five torches every frame
988 if (i > MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS)
990 // no need to merge silent channels
991 for (j = 0;j < SND_LISTENERS;j++)
992 if (ch->listener_volume[j])
994 if (j == SND_LISTENERS)
996 // if the last combine chosen isn't suitable, find a new one
997 if (!(combine && combine != ch && combine->sfx == ch->sfx))
1001 for (j = MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS;j < i;j++)
1003 if (channels[j].sfx == ch->sfx)
1005 combine = channels + j;
1010 if (combine && combine != ch && combine->sfx == ch->sfx)
1012 for (j = 0;j < SND_LISTENERS;j++)
1014 combine->listener_volume[j] += ch->listener_volume[j];
1015 ch->listener_volume[j] = 0;
1021 sound_spatialized = true;
1024 if (snd_show.integer)
1028 for (i=0 ; i<total_channels; i++, ch++)
1032 for (j = 0;j < SND_LISTENERS;j++)
1033 if (ch->listener_volume[j])
1035 if (j < SND_LISTENERS)
1040 Con_Printf("----(%u)----\n", total);
1046 void GetSoundtime(void)
1050 static int oldsamplepos;
1053 fullsamples = shm->sampleframes;
1055 // it is possible to miscount buffers if it has wrapped twice between
1056 // calls to S_Update. Oh well.
1057 samplepos = SNDDMA_GetDMAPos();
1059 if (samplepos < oldsamplepos)
1061 buffers++; // buffer wrapped
1063 if (paintedtime > 0x40000000)
1064 { // time to chop things off to avoid 32 bit limits
1066 paintedtime = fullsamples;
1070 oldsamplepos = samplepos;
1072 soundtime = buffers * fullsamples + samplepos / shm->format.channels;
1075 void S_ExtraUpdate (void)
1077 if (snd_noextraupdate.integer || !sound_spatialized)
1083 void S_Update_(void)
1087 if (!sound_started || (snd_blocked > 0))
1093 // check to make sure that we haven't overshot
1094 if (paintedtime < soundtime)
1095 paintedtime = soundtime;
1097 // mix ahead of current position
1098 endtime = soundtime + _snd_mixahead.value * shm->format.speed;
1099 endtime = min(endtime, (unsigned int)(soundtime + shm->sampleframes));
1101 S_PaintChannels (endtime);
1107 ===============================================================================
1111 ===============================================================================
1114 static void S_Play_Common(float fvol, float attenuation)
1117 char name[MAX_QPATH];
1121 while (i<Cmd_Argc())
1124 strlcpy(name, Cmd_Argv(i), sizeof(name));
1125 if (!strrchr(name, '.'))
1126 strlcat(name, ".wav", sizeof(name));
1129 // If we need to get the volume from the command line
1132 fvol = atof(Cmd_Argv(i));
1136 sfx = S_PrecacheSound (name, true, false);
1139 ch_ind = S_StartSound(-1, 0, sfx, listener_origin, fvol, attenuation);
1141 // Free the sfx if the file didn't exist
1143 S_FreeSfx (sfx, false);
1145 channels[ch_ind].flags |= CHANNELFLAG_LOCALSOUND;
1152 S_Play_Common (1.0f, 1.0f);
1157 S_Play_Common (1.0f, 0.0f);
1160 void S_PlayVol(void)
1162 S_Play_Common (-1.0f, 0.0f);
1165 void S_SoundList(void)
1172 for (sfx = known_sfx, i = 0; sfx != NULL; sfx = sfx->next, i++)
1174 if (sfx->fetcher != NULL)
1176 size = (int)sfx->memsize;
1178 Con_Printf ("%c%c%c%c(%2db, %6s) %8i : %s\n",
1179 (sfx->loopstart >= 0) ? 'L' : ' ',
1180 (sfx->flags & SFXFLAG_STREAMED) ? 'S' : ' ',
1181 (sfx->locks > 0) ? 'K' : ' ',
1182 (sfx->flags & SFXFLAG_PERMANENTLOCK) ? 'P' : ' ',
1183 sfx->format.width * 8,
1184 (sfx->format.channels == 1) ? "mono" : "stereo",
1189 Con_Printf (" ( unknown ) unloaded : %s\n", sfx->name);
1191 Con_Printf("Total resident: %i\n", total);
1195 qboolean S_LocalSound (const char *sound)
1200 if (!snd_initialized.integer || nosound.integer)
1203 sfx = S_PrecacheSound (sound, true, false);
1206 Con_Printf("S_LocalSound: can't precache %s\n", sound);
1210 // Local sounds must not be freed
1211 sfx->flags |= SFXFLAG_PERMANENTLOCK;
1213 ch_ind = S_StartSound (cl.viewentity, 0, sfx, vec3_origin, 1, 0);
1217 channels[ch_ind].flags |= CHANNELFLAG_LOCALSOUND;