no longer complains about missing ambient liquid sounds in nexuiz
[divverent/darkplaces.git] / snd_dma.c
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
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.
8
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.
12
13 See the GNU General Public License for more details.
14
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.
18
19 */
20 // snd_dma.c -- main control for any streaming sound output device
21
22 #include "quakedef.h"
23
24 #ifdef _WIN32
25 #include "winquake.h"
26 #endif
27
28 void S_Play(void);
29 void S_PlayVol(void);
30 void S_Play2(void);
31 void S_SoundList(void);
32 void S_Update_();
33 void S_StopAllSounds(qboolean clear);
34 void S_StopAllSoundsC(void);
35
36 // =======================================================================
37 // Internal sound data & structures
38 // =======================================================================
39
40 channel_t channels[MAX_CHANNELS];
41 int total_channels;
42
43 int snd_blocked = 0;
44 static qboolean snd_ambient = 1;
45 qboolean snd_initialized = false;
46
47 // pointer should go away
48 volatile dma_t *shm = 0;
49 volatile dma_t sn;
50
51 vec3_t listener_origin;
52 vec3_t listener_forward;
53 vec3_t listener_right;
54 vec3_t listener_up;
55 vec_t sound_nominal_clip_dist=1000.0;
56 mempool_t *snd_mempool;
57
58 // sample PAIRS
59 int soundtime;
60 int paintedtime;
61
62
63 //LordHavoc: increased the client sound limit from 512 to 4096 for the Nehahra movie
64 #define MAX_SFX 4096
65 sfx_t *known_sfx; // allocated [MAX_SFX]
66 int num_sfx;
67
68 sfx_t *ambient_sfx[NUM_AMBIENTS];
69
70 int sound_started = 0;
71
72 cvar_t bgmvolume = {CVAR_SAVE, "bgmvolume", "1"};
73 cvar_t volume = {CVAR_SAVE, "volume", "0.7"};
74
75 cvar_t nosound = {0, "nosound", "0"};
76 cvar_t precache = {0, "precache", "1"};
77 cvar_t bgmbuffer = {0, "bgmbuffer", "4096"};
78 cvar_t ambient_level = {0, "ambient_level", "0.3"};
79 cvar_t ambient_fade = {0, "ambient_fade", "100"};
80 cvar_t snd_noextraupdate = {0, "snd_noextraupdate", "0"};
81 cvar_t snd_show = {0, "snd_show", "0"};
82 cvar_t _snd_mixahead = {CVAR_SAVE, "_snd_mixahead", "0.1"};
83 cvar_t snd_swapstereo = {CVAR_SAVE, "snd_swapstereo", "0"};
84
85
86 // ====================================================================
87 // User-setable variables
88 // ====================================================================
89
90
91 //
92 // Fake dma is a synchronous faking of the DMA progress used for
93 // isolating performance in the renderer.  The fakedma_updates is
94 // number of times S_Update() is called per second.
95 //
96
97 qboolean fakedma = false;
98 int fakedma_updates = 15;
99
100
101 void S_AmbientOff (void)
102 {
103         snd_ambient = false;
104 }
105
106
107 void S_AmbientOn (void)
108 {
109         snd_ambient = true;
110 }
111
112
113 void S_SoundInfo_f(void)
114 {
115         if (!sound_started || !shm)
116         {
117                 Con_Printf ("sound system not started\n");
118                 return;
119         }
120
121         Con_Printf("%5d stereo\n", shm->channels - 1);
122         Con_Printf("%5d samples\n", shm->samples);
123         Con_Printf("%5d samplepos\n", shm->samplepos);
124         Con_Printf("%5d samplebits\n", shm->samplebits);
125         Con_Printf("%5d submission_chunk\n", shm->submission_chunk);
126         Con_Printf("%5d speed\n", shm->speed);
127         Con_Printf("0x%x dma buffer\n", shm->buffer);
128         Con_Printf("%5d total_channels\n", total_channels);
129 }
130
131
132 /*
133 ================
134 S_Startup
135 ================
136 */
137 void S_Startup (void)
138 {
139         int rc;
140
141         if (!snd_initialized)
142                 return;
143
144         if (!fakedma)
145         {
146                 rc = SNDDMA_Init();
147
148                 if (!rc)
149                 {
150                         Con_Printf("S_Startup: SNDDMA_Init failed.\n");
151                         sound_started = 0;
152                         return;
153                 }
154         }
155
156         sound_started = 1;
157 }
158
159 /*
160 ================
161 S_Init
162 ================
163 */
164 void S_Init (void)
165 {
166         Con_Printf("\nSound Initialization\n");
167
168         S_RawSamples_ClearQueue();
169
170         Cvar_RegisterVariable(&volume);
171         Cvar_RegisterVariable(&bgmvolume);
172
173         if (COM_CheckParm("-nosound") || COM_CheckParm("-safe"))
174                 return;
175
176         snd_mempool = Mem_AllocPool("sound");
177
178         if (COM_CheckParm("-simsound"))
179                 fakedma = true;
180
181         Cmd_AddCommand("play", S_Play);
182         Cmd_AddCommand("play2", S_Play2);
183         Cmd_AddCommand("playvol", S_PlayVol);
184         Cmd_AddCommand("stopsound", S_StopAllSoundsC);
185         Cmd_AddCommand("soundlist", S_SoundList);
186         Cmd_AddCommand("soundinfo", S_SoundInfo_f);
187
188         Cvar_RegisterVariable(&nosound);
189         Cvar_RegisterVariable(&precache);
190         Cvar_RegisterVariable(&bgmbuffer);
191         Cvar_RegisterVariable(&ambient_level);
192         Cvar_RegisterVariable(&ambient_fade);
193         Cvar_RegisterVariable(&snd_noextraupdate);
194         Cvar_RegisterVariable(&snd_show);
195         Cvar_RegisterVariable(&_snd_mixahead);
196         Cvar_RegisterVariable(&snd_swapstereo); // LordHavoc: for people with backwards sound wiring
197
198         snd_initialized = true;
199
200         known_sfx = Mem_Alloc(snd_mempool, MAX_SFX*sizeof(sfx_t));
201         num_sfx = 0;
202
203         S_Startup ();
204
205         SND_InitScaletable ();
206
207 // create a piece of DMA memory
208
209         if (fakedma)
210         {
211                 shm = (void *) Mem_Alloc(snd_mempool, sizeof(*shm));
212                 shm->splitbuffer = 0;
213                 shm->samplebits = 16;
214                 shm->speed = 22050;
215                 shm->channels = 2;
216                 shm->samples = 32768;
217                 shm->samplepos = 0;
218                 shm->soundalive = true;
219                 shm->gamealive = true;
220                 shm->submission_chunk = 1;
221                 shm->buffer = Mem_Alloc(snd_mempool, shm->channels * shm->samples * (shm->samplebits / 8));
222         }
223
224         if (!sound_started)
225                 return;
226
227         Con_Printf ("Sound sampling rate: %i\n", shm->speed);
228
229         // provides a tick sound until washed clean
230
231         ambient_sfx[AMBIENT_WATER] = S_PrecacheSound ("ambience/water1.wav", false);
232         ambient_sfx[AMBIENT_SKY] = S_PrecacheSound ("ambience/wind2.wav", false);
233
234         S_StopAllSounds (true);
235 }
236
237
238 // =======================================================================
239 // Shutdown sound engine
240 // =======================================================================
241
242 void S_Shutdown(void)
243 {
244         if (!sound_started)
245                 return;
246
247         if (shm)
248                 shm->gamealive = 0;
249
250         shm = 0;
251         sound_started = 0;
252
253         if (!fakedma)
254                 SNDDMA_Shutdown();
255 }
256
257
258 // =======================================================================
259 // Load a sound
260 // =======================================================================
261
262 /*
263 ==================
264 S_FindName
265
266 ==================
267 */
268 sfx_t *S_FindName (char *name)
269 {
270         int i;
271         sfx_t *sfx;
272
273         if (!name)
274                 Host_Error ("S_FindName: NULL\n");
275
276         if (strlen(name) >= MAX_QPATH)
277                 Host_Error ("Sound name too long: %s", name);
278
279 // see if already loaded
280         for (i = 0;i < num_sfx;i++)
281                 if (!strcmp(known_sfx[i].name, name))
282                         return &known_sfx[i];
283
284         if (num_sfx == MAX_SFX)
285                 Sys_Error ("S_FindName: out of sfx_t");
286
287         sfx = &known_sfx[i];
288         memset(sfx, 0, sizeof(*sfx));
289         strcpy (sfx->name, name);
290
291         num_sfx++;
292
293         return sfx;
294 }
295
296
297 /*
298 ==================
299 S_TouchSound
300
301 ==================
302 */
303 void S_TouchSound (char *name)
304 {
305         sfx_t   *sfx;
306
307         if (!sound_started)
308                 return;
309
310         sfx = S_FindName (name);
311 }
312
313 /*
314 ==================
315 S_PrecacheSound
316
317 ==================
318 */
319 sfx_t *S_PrecacheSound (char *name, int complain)
320 {
321         sfx_t *sfx;
322
323         if (!sound_started || nosound.integer)
324                 return NULL;
325
326         sfx = S_FindName (name);
327
328 // cache it in
329         if (precache.integer)
330                 S_LoadSound (sfx, complain);
331
332         return sfx;
333 }
334
335
336 //=============================================================================
337
338 /*
339 =================
340 SND_PickChannel
341 =================
342 */
343 channel_t *SND_PickChannel(int entnum, int entchannel)
344 {
345     int ch_idx;
346     int first_to_die;
347     int life_left;
348
349 // Check for replacement sound, or find the best one to replace
350     first_to_die = -1;
351     life_left = 0x7fffffff;
352     for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++)
353     {
354                 if (entchannel != 0             // channel 0 never overrides
355                 && channels[ch_idx].entnum == entnum
356                 && (channels[ch_idx].entchannel == entchannel || entchannel == -1) )
357                 {       // always override sound from same entity
358                         first_to_die = ch_idx;
359                         break;
360                 }
361
362                 // don't let monster sounds override player sounds
363                 if (channels[ch_idx].entnum == cl.viewentity && entnum != cl.viewentity && channels[ch_idx].sfx)
364                         continue;
365
366                 if (channels[ch_idx].end - paintedtime < life_left)
367                 {
368                         life_left = channels[ch_idx].end - paintedtime;
369                         first_to_die = ch_idx;
370                 }
371    }
372
373         if (first_to_die == -1)
374                 return NULL;
375
376         if (channels[first_to_die].sfx)
377                 channels[first_to_die].sfx = NULL;
378
379     return &channels[first_to_die];
380 }
381
382 /*
383 =================
384 SND_Spatialize
385 =================
386 */
387 void SND_Spatialize(channel_t *ch)
388 {
389     vec_t dot;
390     vec_t dist;
391     vec_t lscale, rscale, scale;
392     vec3_t source_vec;
393         sfx_t *snd;
394
395 // anything coming from the view entity will always be full volume
396 // LordHavoc: make sounds with ATTN_NONE have no spatialization
397         if (ch->entnum == cl.viewentity || ch->dist_mult == 0)
398         {
399                 ch->leftvol = ch->master_vol;
400                 ch->rightvol = ch->master_vol;
401                 return;
402         }
403
404 // calculate stereo seperation and distance attenuation
405
406         snd = ch->sfx;
407         VectorSubtract(ch->origin, listener_origin, source_vec);
408
409         dist = VectorNormalizeLength(source_vec) * ch->dist_mult;
410
411         dot = DotProduct(listener_right, source_vec);
412
413         if (shm->channels == 1)
414         {
415                 rscale = 1.0;
416                 lscale = 1.0;
417         }
418         else
419         {
420                 rscale = 1.0 + dot;
421                 lscale = 1.0 - dot;
422         }
423
424 // add in distance effect
425         scale = (1.0 - dist) * rscale;
426         ch->rightvol = (int) (ch->master_vol * scale);
427         if (ch->rightvol < 0)
428                 ch->rightvol = 0;
429
430         scale = (1.0 - dist) * lscale;
431         ch->leftvol = (int) (ch->master_vol * scale);
432         if (ch->leftvol < 0)
433                 ch->leftvol = 0;
434 }
435
436
437 // =======================================================================
438 // Start a sound effect
439 // =======================================================================
440
441 void S_StartSound(int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
442 {
443         channel_t *target_chan, *check;
444         sfxcache_t      *sc;
445         int             vol;
446         int             ch_idx;
447         int             skip;
448
449         if (!sound_started)
450                 return;
451
452         if (!sfx)
453                 return;
454
455         if (nosound.integer)
456                 return;
457
458         vol = fvol*255;
459
460 // pick a channel to play on
461         target_chan = SND_PickChannel(entnum, entchannel);
462         if (!target_chan)
463                 return;
464
465 // spatialize
466         memset (target_chan, 0, sizeof(*target_chan));
467         VectorCopy(origin, target_chan->origin);
468         target_chan->dist_mult = attenuation / sound_nominal_clip_dist;
469         target_chan->master_vol = vol;
470         target_chan->entnum = entnum;
471         target_chan->entchannel = entchannel;
472         SND_Spatialize(target_chan);
473
474         if (!target_chan->leftvol && !target_chan->rightvol)
475                 return;         // not audible at all
476
477 // new channel
478         sc = S_LoadSound (sfx, true);
479         if (!sc)
480         {
481                 target_chan->sfx = NULL;
482                 return;         // couldn't load the sound's data
483         }
484
485         target_chan->sfx = sfx;
486         target_chan->pos = 0.0;
487     target_chan->end = paintedtime + sc->length;
488
489 // if an identical sound has also been started this frame, offset the pos
490 // a bit to keep it from just making the first one louder
491         check = &channels[NUM_AMBIENTS];
492     for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++, check++)
493     {
494                 if (check == target_chan)
495                         continue;
496                 if (check->sfx == sfx && !check->pos)
497                 {
498                         // LordHavoc: fixed skip calculations
499                         skip = 0.1 * shm->speed;
500                         if (skip > sc->length)
501                                 skip = sc->length;
502                         if (skip > 0)
503                                 skip = rand() % skip;
504                         target_chan->pos += skip;
505                         target_chan->end -= skip;
506                         break;
507                 }
508
509         }
510 }
511
512 void S_StopSound(int entnum, int entchannel)
513 {
514         int i;
515
516         for (i=0 ; i<MAX_DYNAMIC_CHANNELS ; i++)
517         {
518                 if (channels[i].entnum == entnum
519                         && channels[i].entchannel == entchannel)
520                 {
521                         channels[i].end = 0;
522                         channels[i].sfx = NULL;
523                         return;
524                 }
525         }
526 }
527
528 void S_StopAllSounds(qboolean clear)
529 {
530         int             i;
531
532         if (!sound_started)
533                 return;
534
535         total_channels = MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS;   // no statics
536
537         for (i=0 ; i<MAX_CHANNELS ; i++)
538                 if (channels[i].sfx)
539                         channels[i].sfx = NULL;
540
541         memset(channels, 0, MAX_CHANNELS * sizeof(channel_t));
542
543         if (clear)
544                 S_ClearBuffer ();
545 }
546
547 void S_StopAllSoundsC (void)
548 {
549         S_StopAllSounds (true);
550 }
551
552 void S_ClearBuffer (void)
553 {
554         int             clear;
555
556 #ifdef _WIN32
557         if (!sound_started || !shm || (!shm->buffer && !pDSBuf))
558 #else
559         if (!sound_started || !shm || !shm->buffer)
560 #endif
561                 return;
562
563         if (shm->samplebits == 8)
564                 clear = 0x80;
565         else
566                 clear = 0;
567
568 #ifdef _WIN32
569         if (pDSBuf)
570         {
571                 DWORD   dwSize;
572                 DWORD   *pData;
573                 int             reps;
574                 HRESULT hresult;
575
576                 reps = 0;
577
578                 while ((hresult = pDSBuf->lpVtbl->Lock(pDSBuf, 0, gSndBufSize, &pData, &dwSize, NULL, NULL, 0)) != DS_OK)
579                 {
580                         if (hresult != DSERR_BUFFERLOST)
581                         {
582                                 Con_Printf ("S_ClearBuffer: DS::Lock Sound Buffer Failed\n");
583                                 S_Shutdown ();
584                                 return;
585                         }
586
587                         if (++reps > 10000)
588                         {
589                                 Con_Printf ("S_ClearBuffer: DS: couldn't restore buffer\n");
590                                 S_Shutdown ();
591                                 return;
592                         }
593                 }
594
595                 memset(pData, clear, shm->samples * shm->samplebits/8);
596
597                 pDSBuf->lpVtbl->Unlock(pDSBuf, pData, dwSize, NULL, 0);
598
599         }
600         else
601 #endif
602         {
603                 int             setsize = shm->samples * shm->samplebits / 8;
604                 char    *buf = shm->buffer;
605
606                 while (setsize--)
607                         *buf++ = 0;
608
609 // on i586/i686 optimized versions of glibc, glibc *wrongly* IMO,
610 // reads the memory area before writing to it causing a seg fault
611 // since the memory is PROT_WRITE only and not PROT_READ|PROT_WRITE
612 //              memset(shm->buffer, clear, shm->samples * shm->samplebits/8);
613         }
614 }
615
616
617 /*
618 =================
619 S_StaticSound
620 =================
621 */
622 void S_StaticSound (sfx_t *sfx, vec3_t origin, float vol, float attenuation)
623 {
624         channel_t       *ss;
625         sfxcache_t              *sc;
626
627         if (!sfx)
628                 return;
629
630         if (total_channels == MAX_CHANNELS)
631         {
632                 Con_Printf ("total_channels == MAX_CHANNELS\n");
633                 return;
634         }
635
636         ss = &channels[total_channels];
637         total_channels++;
638
639         sc = S_LoadSound (sfx, true);
640         if (!sc)
641                 return;
642
643         if (sc->loopstart == -1)
644         {
645                 Con_Printf ("Sound %s not looped\n", sfx->name);
646                 return;
647         }
648
649         ss->sfx = sfx;
650         VectorCopy (origin, ss->origin);
651         ss->master_vol = vol;
652         ss->dist_mult = (attenuation/64) / sound_nominal_clip_dist;
653     ss->end = paintedtime + sc->length;
654
655         SND_Spatialize (ss);
656 }
657
658
659 //=============================================================================
660
661 /*
662 ===================
663 S_UpdateAmbientSounds
664 ===================
665 */
666 void S_UpdateAmbientSounds (void)
667 {
668         mleaf_t         *l;
669         float           vol;
670         int                     ambient_channel;
671         channel_t       *chan;
672
673         // LordHavoc: kill ambient sounds until proven otherwise
674         for (ambient_channel = 0 ; ambient_channel < NUM_AMBIENTS;ambient_channel++)
675                 channels[ambient_channel].sfx = NULL;
676
677         if (!snd_ambient || !cl.worldmodel || ambient_level.value <= 0)
678                 return;
679
680         l = Mod_PointInLeaf (listener_origin, cl.worldmodel);
681         if (!l)
682                 return;
683
684 // calc ambient sound levels
685         for (ambient_channel = 0 ; ambient_channel< NUM_AMBIENTS ; ambient_channel++)
686         {
687                 if (ambient_sfx[ambient_channel] && ambient_sfx[ambient_channel]->silentlymissing)
688                         continue;
689                 chan = &channels[ambient_channel];
690                 chan->sfx = ambient_sfx[ambient_channel];
691
692                 vol = ambient_level.value * l->ambient_sound_level[ambient_channel];
693                 if (vol < 8)
694                         vol = 0;
695
696         // don't adjust volume too fast
697                 if (chan->master_vol < vol)
698                 {
699                         chan->master_vol += host_realframetime * ambient_fade.value;
700                         if (chan->master_vol > vol)
701                                 chan->master_vol = vol;
702                 }
703                 else if (chan->master_vol > vol)
704                 {
705                         chan->master_vol -= host_realframetime * ambient_fade.value;
706                         if (chan->master_vol < vol)
707                                 chan->master_vol = vol;
708                 }
709
710                 chan->leftvol = chan->rightvol = chan->master_vol;
711         }
712 }
713
714
715 /*
716 ============
717 S_Update
718
719 Called once each time through the main loop
720 ============
721 */
722 void S_Update(vec3_t origin, vec3_t forward, vec3_t right, vec3_t up)
723 {
724         int                     i, j;
725         int                     total;
726         channel_t       *ch;
727         channel_t       *combine;
728
729         if (!sound_started || (snd_blocked > 0))
730                 return;
731
732         VectorCopy(origin, listener_origin);
733         VectorCopy(forward, listener_forward);
734         VectorCopy(right, listener_right);
735         VectorCopy(up, listener_up);
736
737 // update general area ambient sound sources
738         S_UpdateAmbientSounds ();
739
740         combine = NULL;
741
742 // update spatialization for static and dynamic sounds
743         ch = channels+NUM_AMBIENTS;
744         for (i=NUM_AMBIENTS ; i<total_channels; i++, ch++)
745         {
746                 if (!ch->sfx)
747                         continue;
748                 SND_Spatialize(ch);         // respatialize channel
749                 if (!ch->leftvol && !ch->rightvol)
750                         continue;
751
752         // try to combine static sounds with a previous channel of the same
753         // sound effect so we don't mix five torches every frame
754
755                 if (i > MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS)
756                 {
757                 // see if it can just use the last one
758                         if (combine && combine->sfx == ch->sfx)
759                         {
760                                 combine->leftvol += ch->leftvol;
761                                 combine->rightvol += ch->rightvol;
762                                 ch->leftvol = ch->rightvol = 0;
763                                 continue;
764                         }
765                 // search for one
766                         combine = channels+MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS;
767                         for (j=MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS ; j<i; j++, combine++)
768                                 if (combine->sfx == ch->sfx)
769                                         break;
770
771                         if (j == total_channels)
772                         {
773                                 combine = NULL;
774                         }
775                         else
776                         {
777                                 if (combine != ch)
778                                 {
779                                         combine->leftvol += ch->leftvol;
780                                         combine->rightvol += ch->rightvol;
781                                         ch->leftvol = ch->rightvol = 0;
782                                 }
783                                 continue;
784                         }
785                 }
786         }
787
788 //
789 // debugging output
790 //
791         if (snd_show.integer)
792         {
793                 total = 0;
794                 ch = channels;
795                 for (i=0 ; i<total_channels; i++, ch++)
796                         if (ch->sfx && (ch->leftvol || ch->rightvol) )
797                                 total++;
798
799                 Con_Printf ("----(%i)----\n", total);
800         }
801
802 // mix some sound
803         S_Update_();
804 }
805
806 void GetSoundtime(void)
807 {
808         int             samplepos;
809         static  int             buffers;
810         static  int             oldsamplepos;
811         int             fullsamples;
812
813         fullsamples = shm->samples / shm->channels;
814
815 // it is possible to miscount buffers if it has wrapped twice between
816 // calls to S_Update.  Oh well.
817 #ifdef __sun__
818         soundtime = SNDDMA_GetSamples();
819 #else
820         samplepos = SNDDMA_GetDMAPos();
821
822
823         if (samplepos < oldsamplepos)
824         {
825                 buffers++;                                      // buffer wrapped
826
827                 if (paintedtime > 0x40000000)
828                 {       // time to chop things off to avoid 32 bit limits
829                         buffers = 0;
830                         paintedtime = fullsamples;
831                         S_StopAllSounds (true);
832                 }
833         }
834         oldsamplepos = samplepos;
835
836         soundtime = buffers*fullsamples + samplepos/shm->channels;
837 #endif
838 }
839
840 void IN_Accumulate (void);
841
842 void S_ExtraUpdate (void)
843 {
844
845 #ifdef _WIN32
846         IN_Accumulate ();
847 #endif
848
849         if (snd_noextraupdate.integer)
850                 return;         // don't pollute timings
851         S_Update_();
852 }
853
854 void S_Update_(void)
855 {
856         unsigned        endtime;
857         int                             samps;
858
859         if (!sound_started || (snd_blocked > 0))
860                 return;
861
862 // Updates DMA time
863         GetSoundtime();
864
865 // check to make sure that we haven't overshot
866         if (paintedtime < soundtime)
867                 paintedtime = soundtime;
868
869 // mix ahead of current position
870         endtime = soundtime + _snd_mixahead.value * shm->speed;
871         samps = shm->samples >> (shm->channels-1);
872         if (endtime > (unsigned int)(soundtime + samps))
873                 endtime = soundtime + samps;
874
875 #ifdef _WIN32
876 // if the buffer was lost or stopped, restore it and/or restart it
877         {
878                 DWORD   dwStatus;
879
880                 if (pDSBuf)
881                 {
882                         if (pDSBuf->lpVtbl->GetStatus (pDSBuf, &dwStatus) != DD_OK)
883                                 Con_Printf ("Couldn't get sound buffer status\n");
884
885                         if (dwStatus & DSBSTATUS_BUFFERLOST)
886                                 pDSBuf->lpVtbl->Restore (pDSBuf);
887
888                         if (!(dwStatus & DSBSTATUS_PLAYING))
889                                 pDSBuf->lpVtbl->Play(pDSBuf, 0, 0, DSBPLAY_LOOPING);
890                 }
891         }
892 #endif
893
894         S_PaintChannels (endtime);
895
896         SNDDMA_Submit ();
897 }
898
899 /*
900 ===============================================================================
901
902 console functions
903
904 ===============================================================================
905 */
906
907 void S_Play(void)
908 {
909         static int hash=345;
910         int     i;
911         char name[256];
912         sfx_t   *sfx;
913
914         i = 1;
915         while (i<Cmd_Argc())
916         {
917                 if (!strrchr(Cmd_Argv(i), '.'))
918                 {
919                         strcpy(name, Cmd_Argv(i));
920                         strcat(name, ".wav");
921                 }
922                 else
923                         strcpy(name, Cmd_Argv(i));
924                 sfx = S_PrecacheSound(name, true);
925                 S_StartSound(hash++, 0, sfx, listener_origin, 1.0, 1.0);
926                 i++;
927         }
928 }
929
930 void S_Play2(void)
931 {
932         static int hash=345;
933         int     i;
934         char name[256];
935         sfx_t   *sfx;
936
937         i = 1;
938         while (i<Cmd_Argc())
939         {
940                 if (!strrchr(Cmd_Argv(i), '.'))
941                 {
942                         strcpy(name, Cmd_Argv(i));
943                         strcat(name, ".wav");
944                 }
945                 else
946                         strcpy(name, Cmd_Argv(i));
947                 sfx = S_PrecacheSound(name, true);
948                 S_StartSound(hash++, 0, sfx, listener_origin, 1.0, 0.0);
949                 i++;
950         }
951 }
952
953 void S_PlayVol(void)
954 {
955         static int hash=543;
956         int i;
957         float vol;
958         char name[256];
959         sfx_t   *sfx;
960
961         i = 1;
962         while (i<Cmd_Argc())
963         {
964                 if (!strrchr(Cmd_Argv(i), '.'))
965                 {
966                         strcpy(name, Cmd_Argv(i));
967                         strcat(name, ".wav");
968                 }
969                 else
970                         strcpy(name, Cmd_Argv(i));
971                 sfx = S_PrecacheSound(name, true);
972                 vol = atof(Cmd_Argv(i+1));
973                 S_StartSound(hash++, 0, sfx, listener_origin, vol, 1.0);
974                 i+=2;
975         }
976 }
977
978 void S_SoundList(void)
979 {
980         int             i;
981         sfx_t   *sfx;
982         sfxcache_t      *sc;
983         int             size, total;
984
985         total = 0;
986         for (sfx=known_sfx, i=0 ; i<num_sfx ; i++, sfx++)
987         {
988                 sc = sfx->sfxcache;
989                 if (!sc)
990                         continue;
991                 size = sc->length*sc->width*(sc->stereo+1);
992                 total += size;
993                 if (sc->loopstart >= 0)
994                         Con_Printf ("L");
995                 else
996                         Con_Printf (" ");
997                 Con_Printf("(%2db) %6i : %s\n",sc->width*8,  size, sfx->name);
998         }
999         Con_Printf ("Total resident: %i\n", total);
1000 }
1001
1002
1003 void S_LocalSound (char *sound)
1004 {
1005         sfx_t   *sfx;
1006
1007         if (nosound.integer)
1008                 return;
1009         if (!sound_started)
1010                 return;
1011
1012         sfx = S_PrecacheSound (sound, true);
1013         if (!sfx)
1014         {
1015                 Con_Printf ("S_LocalSound: can't precache %s\n", sound);
1016                 return;
1017         }
1018         S_StartSound (cl.viewentity, -1, sfx, vec3_origin, 1, 1);
1019 }
1020
1021
1022 void S_ClearPrecache (void)
1023 {
1024 }
1025
1026
1027 void S_BeginPrecaching (void)
1028 {
1029 }
1030
1031
1032 void S_EndPrecaching (void)
1033 {
1034 }
1035
1036
1037 #define RAWSAMPLESBUFFER 32768
1038 short s_rawsamplesbuffer[RAWSAMPLESBUFFER * 2];
1039 int s_rawsamplesbuffer_start;
1040 int s_rawsamplesbuffer_count;
1041
1042 void S_RawSamples_Enqueue(short *samples, unsigned int length)
1043 {
1044         int b2, b3;
1045         //Con_Printf("S_RawSamples_Enqueue: %i samples\n", length);
1046         if (s_rawsamplesbuffer_count + length > RAWSAMPLESBUFFER)
1047                 return;
1048         b2 = (s_rawsamplesbuffer_start + s_rawsamplesbuffer_count) % RAWSAMPLESBUFFER;
1049         if (b2 + length > RAWSAMPLESBUFFER)
1050         {
1051                 b3 = (b2 + length) % RAWSAMPLESBUFFER;
1052                 memcpy(s_rawsamplesbuffer + b2 * 2, samples, (RAWSAMPLESBUFFER - b2) * sizeof(short[2]));
1053                 memcpy(s_rawsamplesbuffer, samples + (RAWSAMPLESBUFFER - b2) * 2, b3 * sizeof(short[2]));
1054         }
1055         else
1056                 memcpy(s_rawsamplesbuffer + b2 * 2, samples, length * sizeof(short[2]));
1057         s_rawsamplesbuffer_count += length;
1058 }
1059
1060 void S_RawSamples_Dequeue(int *samples, unsigned int length)
1061 {
1062         int b1, b2, l;
1063         int i;
1064         short *in;
1065         int *out;
1066         int count;
1067         l = length;
1068         if (l > s_rawsamplesbuffer_count)
1069                 l = s_rawsamplesbuffer_count;
1070         b1 = (s_rawsamplesbuffer_start) % RAWSAMPLESBUFFER;
1071         if (b1 + l > RAWSAMPLESBUFFER)
1072         {
1073                 b2 = (b1 + l) % RAWSAMPLESBUFFER;
1074                 //memcpy(samples, s_rawsamplesbuffer + b1 * 2, (RAWSAMPLESBUFFER - b1) * sizeof(short[2]));
1075                 //memcpy(samples + (RAWSAMPLESBUFFER - b1) * 2, s_rawsamplesbuffer, b2 * sizeof(short[2]));
1076                 for (out = samples, in = s_rawsamplesbuffer + b1 * 2, count = (RAWSAMPLESBUFFER - b1) * 2, i = 0;i < count;i++)
1077                         out[i] = in[i];
1078                 for (out = samples + (RAWSAMPLESBUFFER - b1) * 2, in = s_rawsamplesbuffer, count = b2 * 2, i = 0;i < count;i++)
1079                         out[i] = in[i];
1080                 //Con_Printf("S_RawSamples_Dequeue: buffer wrap %i %i\n", (RAWSAMPLESBUFFER - b1), b2);
1081         }
1082         else
1083         {
1084                 //memcpy(samples, s_rawsamplesbuffer + b1 * 2, l * sizeof(short[2]));
1085                 for (out = samples, in = s_rawsamplesbuffer + b1 * 2, count = l * 2, i = 0;i < count;i++)
1086                         out[i] = in[i];
1087                 //Con_Printf("S_RawSamples_Dequeue: normal      %i\n", l);
1088         }
1089         if (l < (int)length)
1090         {
1091                 memset(samples + l * 2, 0, (length - l) * sizeof(int[2]));
1092                 //Con_Printf("S_RawSamples_Dequeue: padding with %i samples\n", length - l);
1093         }
1094         s_rawsamplesbuffer_start = (s_rawsamplesbuffer_start + l) % RAWSAMPLESBUFFER;
1095         s_rawsamplesbuffer_count -= l;
1096 }
1097
1098 void S_RawSamples_ClearQueue(void)
1099 {
1100         s_rawsamplesbuffer_count = 0;
1101         s_rawsamplesbuffer_start = 0;
1102 }
1103
1104 int S_RawSamples_QueueWantsMore(void)
1105 {
1106         if (s_rawsamplesbuffer_count < min(shm->speed >> 1, RAWSAMPLESBUFFER >> 1))
1107                 return RAWSAMPLESBUFFER - s_rawsamplesbuffer_count;
1108         else
1109                 return 0;
1110 }
1111
1112 void S_ResampleBuffer16Stereo(short *input, int inputlength, short *output, int outputlength)
1113 {
1114         if (inputlength != outputlength)
1115         {
1116                 int i, position, stopposition, step;
1117                 short *in, *out;
1118                 step = (float) inputlength * 256.0f / (float) outputlength;
1119                 position = 0;
1120                 stopposition = (inputlength - 1) << 8;
1121                 out = output;
1122                 for (i = 0;i < outputlength && position < stopposition;i++, position += step)
1123                 {
1124                         in = input + ((position >> 8) << 1);
1125                         out[0] = (((in[1] - in[0]) * (position & 255)) >> 8) + in[0];
1126                         out[1] = (((in[3] - in[2]) * (position & 255)) >> 8) + in[2];
1127                         out += 2;
1128                 }
1129                 stopposition = inputlength << 8;
1130                 for (i = 0;i < outputlength && position < stopposition;i++, position += step)
1131                 {
1132                         in = input + ((position >> 8) << 1);
1133                         out[0] = in[0];
1134                         out[1] = in[2];
1135                         out += 2;
1136                 }
1137         }
1138         else
1139                 memcpy(output, input, inputlength * sizeof(short[2]));
1140 }
1141
1142 int S_RawSamples_SampleRate(void)
1143 {
1144         return shm != NULL ? shm->speed : 0;
1145 }