+/*
+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_main.c -- main control for any streaming sound output device
+
+#include "quakedef.h"
+
+#include "snd_main.h"
+#include "snd_ogg.h"
+
+// TODO: find a better solution instead of using a define
+#if defined( _WIN32 ) && !defined( USE_SDL )
+# define USE_DSOUND
+#endif
+
+#ifdef USE_DSOUND
+#include <windows.h>
+#include <dsound.h>
+extern DWORD gSndBufSize;
+extern LPDIRECTSOUND pDS;
+extern LPDIRECTSOUNDBUFFER pDSBuf;
+#endif
+
+
+void S_Play(void);
+void S_PlayVol(void);
+void S_Play2(void);
+void S_SoundList(void);
+void S_Update_();
+
+void S_ClearBuffer (void);
+
+
+// =======================================================================
+// Internal sound data & structures
+// =======================================================================
+
+channel_t channels[MAX_CHANNELS];
+unsigned int total_channels;
+
+int snd_blocked = 0;
+cvar_t snd_initialized = { CVAR_READONLY, "snd_initialized", "0"};
+cvar_t snd_streaming = { CVAR_SAVE, "snd_streaming", "1"};
+
+// pointer should go away
+volatile dma_t *shm = 0;
+volatile dma_t sn;
+
+vec3_t listener_origin;
+matrix4x4_t listener_matrix;
+vec_t sound_nominal_clip_dist=1000.0;
+mempool_t *snd_mempool;
+
+// sample PAIRS
+int soundtime;
+int paintedtime;
+
+
+// Linked list of known sfx
+sfx_t *known_sfx = NULL;
+
+int sound_started = 0;
+
+cvar_t bgmvolume = {CVAR_SAVE, "bgmvolume", "1"};
+cvar_t volume = {CVAR_SAVE, "volume", "0.7"};
+cvar_t snd_staticvolume = {CVAR_SAVE, "snd_staticvolume", "1"};
+
+cvar_t nosound = {0, "nosound", "0"};
+cvar_t snd_precache = {0, "snd_precache", "1"};
+cvar_t bgmbuffer = {0, "bgmbuffer", "4096"};
+cvar_t ambient_level = {0, "ambient_level", "0.3"};
+cvar_t ambient_fade = {0, "ambient_fade", "100"};
+cvar_t snd_noextraupdate = {0, "snd_noextraupdate", "0"};
+cvar_t snd_show = {0, "snd_show", "0"};
+cvar_t _snd_mixahead = {CVAR_SAVE, "_snd_mixahead", "0.1"};
+cvar_t snd_swapstereo = {CVAR_SAVE, "snd_swapstereo", "0"};
+
+
+// ====================================================================
+// User-setable variables
+// ====================================================================
+
+
+//
+// Fake dma is a synchronous faking of the DMA progress used for
+// isolating performance in the renderer.
+//
+
+qboolean fakedma = false;
+
+
+void S_SoundInfo_f(void)
+{
+ if (!sound_started || !shm)
+ {
+ Con_Print("sound system not started\n");
+ return;
+ }
+
+ Con_Printf("%5d stereo\n", shm->format.channels - 1);
+ Con_Printf("%5d samples\n", shm->samples);
+ Con_Printf("%5d samplepos\n", shm->samplepos);
+ Con_Printf("%5d samplebits\n", shm->format.width * 8);
+ Con_Printf("%5d speed\n", shm->format.speed);
+ Con_Printf("%p dma buffer\n", shm->buffer);
+ Con_Printf("%5u total_channels\n", total_channels);
+}
+
+
+void S_Startup(void)
+{
+ if (!snd_initialized.integer)
+ return;
+
+ shm = &sn;
+ memset((void *)shm, 0, sizeof(*shm));
+
+ // create a piece of DMA memory
+ if (fakedma)
+ {
+ shm->format.width = 2;
+ shm->format.speed = 22050;
+ shm->format.channels = 2;
+ shm->samples = 32768;
+ shm->samplepos = 0;
+ shm->buffer = Mem_Alloc(snd_mempool, shm->format.channels * shm->samples * shm->format.width);
+ }
+ else
+ {
+ if (!SNDDMA_Init())
+ {
+ Con_Print("S_Startup: SNDDMA_Init failed.\n");
+ sound_started = 0;
+ shm = NULL;
+ return;
+ }
+ }
+
+ sound_started = 1;
+
+ Con_DPrintf("Sound sampling rate: %i\n", shm->format.speed);
+
+ S_StopAllSounds ();
+}
+
+void S_Shutdown(void)
+{
+ if (!sound_started)
+ return;
+
+ if (fakedma)
+ Mem_Free(shm->buffer);
+ else
+ SNDDMA_Shutdown();
+
+ shm = NULL;
+ sound_started = 0;
+}
+
+void S_Restart_f(void)
+{
+ S_Shutdown();
+ S_Startup();
+}
+
+/*
+================
+S_Init
+================
+*/
+void S_Init(void)
+{
+ Con_DPrint("\nSound Initialization\n");
+
+ Cvar_RegisterVariable(&volume);
+ Cvar_RegisterVariable(&bgmvolume);
+ Cvar_RegisterVariable(&snd_staticvolume);
+
+// COMMANDLINEOPTION: Sound: -nosound disables sound (including CD audio)
+ if (COM_CheckParm("-nosound") || COM_CheckParm("-safe"))
+ return;
+
+ snd_mempool = Mem_AllocPool("sound", 0, NULL);
+
+// COMMANDLINEOPTION: Sound: -simsound runs sound mixing but with no output
+ if (COM_CheckParm("-simsound"))
+ fakedma = true;
+
+ Cmd_AddCommand("play", S_Play);
+ Cmd_AddCommand("play2", S_Play2);
+ Cmd_AddCommand("playvol", S_PlayVol);
+ Cmd_AddCommand("stopsound", S_StopAllSounds);
+ Cmd_AddCommand("soundlist", S_SoundList);
+ Cmd_AddCommand("soundinfo", S_SoundInfo_f);
+ Cmd_AddCommand("snd_restart", S_Restart_f);
+
+ Cvar_RegisterVariable(&nosound);
+ Cvar_RegisterVariable(&snd_precache);
+ Cvar_RegisterVariable(&snd_initialized);
+ Cvar_RegisterVariable(&snd_streaming);
+ Cvar_RegisterVariable(&bgmbuffer);
+ Cvar_RegisterVariable(&ambient_level);
+ Cvar_RegisterVariable(&ambient_fade);
+ Cvar_RegisterVariable(&snd_noextraupdate);
+ Cvar_RegisterVariable(&snd_show);
+ Cvar_RegisterVariable(&_snd_mixahead);
+ Cvar_RegisterVariable(&snd_swapstereo); // for people with backwards sound wiring
+
+ Cvar_SetValueQuick(&snd_initialized, true);
+
+ known_sfx = NULL;
+
+ total_channels = MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS; // no statics
+ memset(channels, 0, MAX_CHANNELS * sizeof(channel_t));
+
+ OGG_OpenLibrary ();
+}
+
+
+// =======================================================================
+// Load a sound
+// =======================================================================
+
+/*
+==================
+S_FindName
+
+==================
+*/
+sfx_t *S_FindName (const char *name, qboolean stdpath)
+{
+ sfx_t *sfx;
+ size_t len;
+ char namebuffer [MAX_QPATH];
+
+ if (!snd_initialized.integer)
+ return NULL;
+
+ // Add the default sound directory to the path
+ len = snprintf (namebuffer, sizeof (namebuffer), stdpath ? "sound/%s" : "%s", name);
+ if (len >= sizeof (namebuffer))
+ Host_Error ("S_FindName: sound name too long (%s)", name);
+
+ // Look for this sound in the list of known sfx
+ for (sfx = known_sfx; sfx != NULL; sfx = sfx->next)
+ if(!strcmp (sfx->name, namebuffer))
+ return sfx;
+
+ // Add a sfx_t struct for this sound
+ sfx = Mem_Alloc (snd_mempool, sizeof (*sfx));
+ memset (sfx, 0, sizeof(*sfx));
+ strlcpy (sfx->name, namebuffer, sizeof (sfx->name));
+ sfx->next = known_sfx;
+ known_sfx = sfx;
+
+ return sfx;
+}
+
+
+/*
+==================
+S_FreeSfx
+
+==================
+*/
+void S_FreeSfx (sfx_t *sfx)
+{
+ // Never free a locked sfx
+ if (sfx->locks > 0)
+ return;
+
+ Con_DPrintf ("S_FreeSfx: freeing %s\n", sfx->name);
+
+ // Remove it from the list of known sfx
+ if (sfx == known_sfx)
+ known_sfx = known_sfx->next;
+ else
+ {
+ sfx_t *prev_sfx;
+
+ for (prev_sfx = known_sfx; prev_sfx != NULL; prev_sfx = prev_sfx->next)
+ if (prev_sfx->next == sfx)
+ {
+ prev_sfx->next = sfx->next;
+ break;
+ }
+ if (prev_sfx == NULL)
+ Sys_Error ("S_FreeSfx: Can't find SFX %s in the list!\n", sfx->name);
+ }
+
+ // Free it
+ Mem_FreePool (&sfx->mempool);
+ Mem_Free (sfx);
+}
+
+
+/*
+==================
+S_ServerSounds
+
+==================
+*/
+void S_ServerSounds (char serversound [][MAX_QPATH], unsigned int numsounds)
+{
+ sfx_t *sfx;
+ unsigned int i;
+
+ // Start the ambient sounds and make them loop
+ channels[AMBIENT_WATER].sfx = S_PrecacheSound ("ambience/water1.wav", false, true, true);
+ channels[AMBIENT_SKY].sfx = S_PrecacheSound ("ambience/wind2.wav", false, true, true);
+ for (i = 0; i < NUM_AMBIENTS; i++)
+ channels[i].flags |= CHANNELFLAG_FORCELOOP;
+
+ // Remove 1 lock from all sfx with the SFXFLAG_SERVERSOUND flag, and remove the flag
+ for (sfx = known_sfx; sfx != NULL; sfx = sfx->next)
+ if (sfx->flags & SFXFLAG_SERVERSOUND)
+ {
+ sfx->locks--;
+ sfx->flags &= ~SFXFLAG_SERVERSOUND;
+ }
+
+ // Add 1 lock and the SFXFLAG_SERVERSOUND flag to each sfx in "serversound"
+ for (i = 1; i < numsounds; i++)
+ {
+ sfx = S_FindName (serversound[i], true);
+ if (sfx != NULL)
+ {
+ sfx->locks++;
+ sfx->flags |= SFXFLAG_SERVERSOUND;
+ }
+ }
+
+ // Free all unlocked sfx
+ sfx = known_sfx;
+ while (sfx != NULL)
+ {
+ sfx_t* crtsfx;
+
+ // We may lose the "next" pointer after S_FreeSfx
+ crtsfx = sfx;
+ sfx = sfx->next;
+
+ S_FreeSfx (crtsfx);
+ }
+}
+
+
+/*
+==================
+S_PrecacheSound
+
+==================
+*/
+sfx_t *S_PrecacheSound (const char *name, qboolean complain, qboolean stdpath, qboolean lock)
+{
+ sfx_t *sfx;
+
+ if (!snd_initialized.integer)
+ return NULL;
+
+ sfx = S_FindName (name, stdpath);
+ if (sfx == NULL)
+ return NULL;
+
+ if (lock)
+ sfx->locks++;
+
+ if (!nosound.integer && snd_precache.integer)
+ S_LoadSound(sfx, complain);
+
+ return sfx;
+}
+
+/*
+==================
+S_UnlockSfx
+
+Remove a lock from a SFX and freed it if possible
+==================
+*/
+void S_UnlockSfx (sfx_t *sfx)
+{
+ sfx->locks--;
+ S_FreeSfx (sfx);
+}
+
+
+//=============================================================================
+
+/*
+=================
+SND_PickChannel
+
+Picks a channel based on priorities, empty slots, number of channels
+=================
+*/
+channel_t *SND_PickChannel(int entnum, int entchannel)
+{
+ int ch_idx;
+ int first_to_die;
+ int life_left;
+ channel_t* ch;
+
+// Check for replacement sound, or find the best one to replace
+ first_to_die = -1;
+ life_left = 0x7fffffff;
+ for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++)
+ {
+ ch = &channels[ch_idx];
+ if (entchannel != 0 // channel 0 never overrides
+ && ch->entnum == entnum
+ && (ch->entchannel == entchannel || entchannel == -1) )
+ { // always override sound from same entity
+ first_to_die = ch_idx;
+ break;
+ }
+
+ // don't let monster sounds override player sounds
+ if (ch->entnum == cl.viewentity && entnum != cl.viewentity && ch->sfx)
+ continue;
+
+ // don't override looped sounds
+ if ((ch->flags & CHANNELFLAG_FORCELOOP) != 0 ||
+ (ch->sfx != NULL && ch->sfx->loopstart >= 0))
+ continue;
+
+ if (ch->end - paintedtime < life_left)
+ {
+ life_left = ch->end - paintedtime;
+ first_to_die = ch_idx;
+ }
+ }
+
+ if (first_to_die == -1)
+ return NULL;
+
+ S_StopChannel (first_to_die);
+
+ return &channels[first_to_die];
+}
+
+/*
+=================
+SND_Spatialize
+
+Spatializes a channel
+=================
+*/
+void SND_Spatialize(channel_t *ch, qboolean isstatic)
+{
+ vec_t dist, scale, pan;
+ vec3_t source_vec;
+
+ // anything coming from the view entity will always be full volume
+ // LordHavoc: make sounds with ATTN_NONE have no spatialization
+ if (ch->entnum == cl.viewentity || ch->dist_mult == 0)
+ {
+ ch->leftvol = ch->master_vol;
+ ch->rightvol = ch->master_vol;
+ }
+ else
+ {
+ // update sound origin if we know about the entity
+ if (ch->entnum > 0 && cls.state == ca_connected && cl_entities[ch->entnum].state_current.active)
+ {
+ //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]);
+ VectorCopy(cl_entities[ch->entnum].state_current.origin, ch->origin);
+ if (cl_entities[ch->entnum].state_current.modelindex && cl.model_precache[cl_entities[ch->entnum].state_current.modelindex]->soundfromcenter)
+ 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);
+ }
+
+ // calculate stereo seperation and distance attenuation
+ Matrix4x4_Transform(&listener_matrix, ch->origin, source_vec);
+ dist = VectorNormalizeLength(source_vec);
+ // distance
+ scale = ch->master_vol * (1.0 - (dist * ch->dist_mult));
+ // panning
+ pan = scale * source_vec[1];
+ // calculate the volumes
+ ch->leftvol = (int) (scale + pan);
+ ch->rightvol = (int) (scale - pan);
+ }
+
+ // Adjust volume of static sounds
+ if (isstatic)
+ {
+ ch->leftvol *= snd_staticvolume.value;
+ ch->rightvol *= snd_staticvolume.value;
+ }
+
+ // clamp volumes
+ ch->leftvol = bound(0, ch->leftvol, 255);
+ ch->rightvol = bound(0, ch->rightvol, 255);
+}
+
+
+// =======================================================================
+// Start a sound effect
+// =======================================================================
+
+void S_PlaySfxOnChannel (sfx_t *sfx, channel_t *target_chan, unsigned int flags, vec3_t origin, float fvol, float attenuation, qboolean isstatic)
+{
+ // Initialize the channel
+ memset (target_chan, 0, sizeof (*target_chan));
+ VectorCopy (origin, target_chan->origin);
+ target_chan->master_vol = fvol * 255;
+ target_chan->sfx = sfx;
+ target_chan->end = paintedtime + sfx->total_length;
+ target_chan->lastptime = paintedtime;
+ target_chan->flags = flags;
+
+ // If it's a static sound
+ if (isstatic)
+ {
+ if (sfx->loopstart == -1)
+ Con_DPrintf("Quake compatibility warning: Static sound \"%s\" is not looped\n", sfx->name);
+ target_chan->dist_mult = attenuation / (64.0f * sound_nominal_clip_dist);
+ }
+ else
+ target_chan->dist_mult = attenuation / sound_nominal_clip_dist;
+
+ // Lock the SFX during play
+ sfx->locks++;
+}
+
+
+int S_StartSound (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
+{
+ channel_t *target_chan, *check;
+ int ch_idx;
+ size_t skip;
+
+ if (!sound_started || !sfx || !sfx->fetcher || nosound.integer)
+ return -1;
+
+ // Pick a channel to play on
+ target_chan = SND_PickChannel(entnum, entchannel);
+ if (!target_chan)
+ return -1;
+
+ if (!S_LoadSound (sfx, true))
+ return -1; // couldn't load the sound's data
+
+ S_PlaySfxOnChannel (sfx, target_chan, CHANNELFLAG_NONE, origin, fvol, attenuation, false);
+ target_chan->entnum = entnum;
+ target_chan->entchannel = entchannel;
+
+ SND_Spatialize(target_chan, 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 = &channels[NUM_AMBIENTS];
+ for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++, check++)
+ {
+ if (check == target_chan)
+ continue;
+ if (check->sfx == sfx && !check->pos)
+ {
+ skip = 0.1 * sfx->format.speed;
+ if (skip > sfx->total_length)
+ skip = sfx->total_length;
+ if (skip > 0)
+ skip = rand() % skip;
+ target_chan->pos += skip;
+ target_chan->end -= skip;
+ break;
+ }
+ }
+
+ return (target_chan - channels);
+}
+
+void S_StopChannel (unsigned int channel_ind)
+{
+ channel_t *ch;
+
+ if (channel_ind >= total_channels)
+ return;
+
+ ch = &channels[channel_ind];
+ if (ch->sfx != NULL)
+ {
+ sfx_t *sfx = ch->sfx;
+
+ if (sfx->fetcher != NULL)
+ {
+ snd_fetcher_end_t fetcher_end = sfx->fetcher->end;
+ if (fetcher_end != NULL)
+ fetcher_end (ch);
+ }
+
+ // Remove the lock it holds
+ S_UnlockSfx (sfx);
+
+ ch->sfx = NULL;
+ }
+ ch->end = 0;
+}
+
+
+qboolean S_SetChannelFlag (unsigned int ch_ind, unsigned int flag, qboolean value)
+{
+ if (ch_ind >= total_channels)
+ return false;
+
+ if (flag != CHANNELFLAG_FORCELOOP &&
+ flag != CHANNELFLAG_PAUSED &&
+ flag != CHANNELFLAG_FULLVOLUME)
+ return false;
+
+ if (value)
+ channels[ch_ind].flags |= flag;
+ else
+ channels[ch_ind].flags &= ~flag;
+
+ return true;
+}
+
+void S_StopSound(int entnum, int entchannel)
+{
+ unsigned int i;
+
+ for (i = 0; i < MAX_DYNAMIC_CHANNELS; i++)
+ if (channels[i].entnum == entnum && channels[i].entchannel == entchannel)
+ {
+ S_StopChannel (i);
+ return;
+ }
+}
+
+void S_StopAllSounds (void)
+{
+ unsigned int i;
+
+ for (i = 0; i < total_channels; i++)
+ S_StopChannel (i);
+
+ total_channels = MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS; // no statics
+ memset(channels, 0, MAX_CHANNELS * sizeof(channel_t));
+
+ S_ClearBuffer ();
+}
+
+void S_PauseGameSounds (qboolean toggle)
+{
+ unsigned int i;
+
+ for (i = 0; i < total_channels; i++)
+ {
+ channel_t *ch;
+
+ ch = &channels[i];
+ if (ch->sfx != NULL && ! (ch->flags & CHANNELFLAG_LOCALSOUND))
+ S_SetChannelFlag (i, CHANNELFLAG_PAUSED, toggle);
+ }
+}
+
+void S_SetChannelVolume (unsigned int ch_ind, float fvol)
+{
+ channels[ch_ind].master_vol = fvol * 255;
+}
+
+
+void S_ClearBuffer(void)
+{
+ int clear;
+
+ if (!sound_started || !shm)
+ return;
+
+ if (shm->format.width == 1)
+ clear = 0x80;
+ else
+ clear = 0;
+
+#ifdef USE_DSOUND
+ if (pDSBuf)
+ {
+ DWORD dwSize;
+ DWORD *pData;
+ int reps;
+ HRESULT hresult;
+
+ reps = 0;
+
+ while ((hresult = pDSBuf->lpVtbl->Lock(pDSBuf, 0, gSndBufSize, (LPVOID*)&pData, &dwSize, NULL, NULL, 0)) != DS_OK)
+ {
+ if (hresult != DSERR_BUFFERLOST)
+ {
+ Con_Print("S_ClearBuffer: DS::Lock Sound Buffer Failed\n");
+ S_Shutdown ();
+ return;
+ }
+
+ if (++reps > 10000)
+ {
+ Con_Print("S_ClearBuffer: DS: couldn't restore buffer\n");
+ S_Shutdown ();
+ return;
+ }
+ }
+
+ memset(pData, clear, shm->samples * shm->format.width);
+
+ pDSBuf->lpVtbl->Unlock(pDSBuf, pData, dwSize, NULL, 0);
+
+ }
+ else
+#endif
+ if (shm->buffer)
+ {
+ int setsize = shm->samples * shm->format.width;
+ unsigned char *buf = shm->buffer;
+
+ while (setsize--)
+ *buf++ = clear;
+
+ // on i586/i686 optimized versions of glibc, glibc *wrongly* IMO,
+ // reads the memory area before writing to it causing a seg fault
+ // since the memory is PROT_WRITE only and not PROT_READ|PROT_WRITE
+ //memset(shm->buffer, clear, shm->samples * shm->format.width);
+ }
+}
+
+
+/*
+=================
+S_StaticSound
+=================
+*/
+void S_StaticSound (sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
+{
+ channel_t *target_chan;
+
+ if (!sfx)
+ return;
+
+ if (total_channels == MAX_CHANNELS)
+ {
+ Con_Print("total_channels == MAX_CHANNELS\n");
+ return;
+ }
+
+ if (!S_LoadSound (sfx, true))
+ return;
+
+ target_chan = &channels[total_channels++];
+ S_PlaySfxOnChannel (sfx, target_chan, CHANNELFLAG_FORCELOOP, origin, fvol, attenuation, true);
+
+ SND_Spatialize (target_chan, true);
+}
+
+
+//=============================================================================
+
+/*
+===================
+S_UpdateAmbientSounds
+
+===================
+*/
+void S_UpdateAmbientSounds (void)
+{
+ float vol;
+ int ambient_channel;
+ channel_t *chan;
+ qbyte ambientlevels[NUM_AMBIENTS];
+
+ // Mute ambient sounds until proven otherwise
+ for (ambient_channel = 0 ; ambient_channel < NUM_AMBIENTS;ambient_channel++)
+ channels[ambient_channel].master_vol = 0;
+
+ if (ambient_level.value <= 0 || !cl.worldmodel || !cl.worldmodel->brush.AmbientSoundLevelsForPoint)
+ return;
+
+ cl.worldmodel->brush.AmbientSoundLevelsForPoint(cl.worldmodel, listener_origin, ambientlevels, sizeof(ambientlevels));
+
+ // Calc ambient sound levels
+ for (ambient_channel = 0 ; ambient_channel< NUM_AMBIENTS ; ambient_channel++)
+ {
+ chan = &channels[ambient_channel];
+ if (chan->sfx == NULL || (chan->sfx->flags & SFXFLAG_FILEMISSING))
+ continue;
+
+ vol = ambient_level.value * ambientlevels[ambient_channel];
+ if (vol < 8)
+ vol = 0;
+
+ // Don't adjust volume too fast
+ if (chan->master_vol < vol)
+ {
+ chan->master_vol += host_realframetime * ambient_fade.value;
+ if (chan->master_vol > vol)
+ chan->master_vol = vol;
+ }
+ else if (chan->master_vol > vol)
+ {
+ chan->master_vol -= host_realframetime * ambient_fade.value;
+ if (chan->master_vol < vol)
+ chan->master_vol = vol;
+ }
+
+ chan->leftvol = chan->rightvol = chan->master_vol;
+ }
+}
+
+
+/*
+============
+S_Update
+
+Called once each time through the main loop
+============
+*/
+void S_Update(const matrix4x4_t *listenermatrix)
+{
+ unsigned int i, j, total;
+ channel_t *ch, *combine;
+
+ if (!snd_initialized.integer || (snd_blocked > 0))
+ return;
+
+ Matrix4x4_Invert_Simple(&listener_matrix, listenermatrix);
+ Matrix4x4_OriginFromMatrix(listenermatrix, listener_origin);
+
+// update general area ambient sound sources
+ S_UpdateAmbientSounds ();
+
+ combine = NULL;
+
+// update spatialization for static and dynamic sounds
+ ch = channels+NUM_AMBIENTS;
+ for (i=NUM_AMBIENTS ; i<total_channels; i++, ch++)
+ {
+ if (!ch->sfx)
+ continue;
+ SND_Spatialize(ch, i >= MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS); // respatialize channel
+ if (!ch->leftvol && !ch->rightvol)
+ 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)
+ {
+ // see if it can just use the last one
+ if (combine && combine->sfx == ch->sfx)
+ {
+ combine->leftvol += ch->leftvol;
+ combine->rightvol += ch->rightvol;
+ ch->leftvol = ch->rightvol = 0;
+ continue;
+ }
+ // search for one
+ combine = channels+MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS;
+ for (j=MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS ; j<i; j++, combine++)
+ if (combine->sfx == ch->sfx)
+ break;
+
+ if (j == total_channels)
+ combine = NULL;
+ else
+ {
+ if (combine != ch)
+ {
+ combine->leftvol += ch->leftvol;
+ combine->rightvol += ch->rightvol;
+ ch->leftvol = ch->rightvol = 0;
+ }
+ continue;
+ }
+ }
+ }
+
+//
+// debugging output
+//
+ if (snd_show.integer)
+ {
+ total = 0;
+ ch = channels;
+ for (i=0 ; i<total_channels; i++, ch++)
+ if (ch->sfx && (ch->leftvol || ch->rightvol) )
+ total++;
+
+ Con_Printf("----(%u)----\n", total);
+ }
+
+// mix some sound
+ S_Update_();
+}
+
+void GetSoundtime(void)
+{
+ int samplepos;
+ static int buffers;
+ static int oldsamplepos;
+ int fullsamples;
+
+ fullsamples = shm->samples / shm->format.channels;
+
+// it is possible to miscount buffers if it has wrapped twice between
+// calls to S_Update. Oh well.
+ samplepos = SNDDMA_GetDMAPos();
+
+ if (samplepos < oldsamplepos)
+ {
+ buffers++; // buffer wrapped
+
+ if (paintedtime > 0x40000000)
+ { // time to chop things off to avoid 32 bit limits
+ buffers = 0;
+ paintedtime = fullsamples;
+ S_StopAllSounds ();
+ }
+ }
+ oldsamplepos = samplepos;
+
+ soundtime = buffers * fullsamples + samplepos / shm->format.channels;
+}
+
+void S_ExtraUpdate (void)
+{
+ if (snd_noextraupdate.integer)
+ return; // don't pollute timings
+ S_Update_();
+}
+
+void S_Update_(void)
+{
+ unsigned endtime;
+ int samps;
+
+ if (!sound_started || (snd_blocked > 0))
+ return;
+
+// Updates DMA time
+ GetSoundtime();
+
+// check to make sure that we haven't overshot
+ if (paintedtime < soundtime)
+ paintedtime = soundtime;
+
+// mix ahead of current position
+ endtime = soundtime + _snd_mixahead.value * shm->format.speed;
+ samps = shm->samples >> (shm->format.channels - 1);
+ if (endtime > (unsigned int)(soundtime + samps))
+ endtime = soundtime + samps;
+
+#ifdef USE_DSOUND
+// if the buffer was lost or stopped, restore it and/or restart it
+ {
+ DWORD dwStatus;
+
+ if (pDSBuf)
+ {
+ if (pDSBuf->lpVtbl->GetStatus (pDSBuf, &dwStatus) != DS_OK)
+ Con_Print("Couldn't get sound buffer status\n");
+
+ if (dwStatus & DSBSTATUS_BUFFERLOST)
+ pDSBuf->lpVtbl->Restore (pDSBuf);
+
+ if (!(dwStatus & DSBSTATUS_PLAYING))
+ pDSBuf->lpVtbl->Play(pDSBuf, 0, 0, DSBPLAY_LOOPING);
+ }
+ }
+#endif
+
+ S_PaintChannels (endtime);
+
+ SNDDMA_Submit ();
+}
+
+/*
+===============================================================================
+
+console functions
+
+===============================================================================
+*/
+
+static void S_Play_Common(float fvol, float attenuation)
+{
+ int i, ch_ind;
+ char name[256];
+ sfx_t *sfx;
+
+ i = 1;
+ while (i<Cmd_Argc())
+ {
+ if (!strrchr(Cmd_Argv(i), '.'))
+ snprintf(name, sizeof(name), "%s.wav", Cmd_Argv(i));
+ else
+ strlcpy(name, Cmd_Argv(i), sizeof(name));
+ sfx = S_PrecacheSound(name, true, true, false);
+
+ // If we need to get the volume from the command line
+ if (fvol == -1.0f)
+ {
+ fvol = atof(Cmd_Argv(i+1));
+ i += 2;
+ }
+ else
+ i++;
+
+ ch_ind = S_StartSound(-1, 0, sfx, listener_origin, fvol, attenuation);
+
+ // Free the sfx if the file didn't exist
+ if (ch_ind < 0)
+ S_FreeSfx (sfx);
+ else
+ channels[ch_ind].flags |= CHANNELFLAG_LOCALSOUND;
+ }
+}
+
+void S_Play(void)
+{
+ S_Play_Common (1.0f, 1.0f);
+}
+
+void S_Play2(void)
+{
+ S_Play_Common (1.0f, 0.0f);
+}
+
+void S_PlayVol(void)
+{
+ S_Play_Common (-1.0f, 0.0f);
+}
+
+void S_SoundList(void)
+{
+ unsigned int i;
+ sfx_t *sfx;
+ int size, total;
+
+ total = 0;
+ for (sfx = known_sfx, i = 0; sfx != NULL; sfx = sfx->next, i++)
+ {
+ if (sfx->fetcher != NULL)
+ {
+ size = sfx->mempool->totalsize;
+ total += size;
+ Con_Printf ("%c%c(%2db, %6s) %8i : %s\n",
+ (sfx->loopstart >= 0) ? 'L' : ' ',
+ (sfx->flags & SFXFLAG_STREAMED) ? 'S' : ' ',
+ sfx->format.width * 8,
+ (sfx->format.channels == 1) ? "mono" : "stereo",
+ size,
+ sfx->name);
+ }
+ }
+ Con_Printf("Total resident: %i\n", total);
+}
+
+
+qboolean S_LocalSound (const char *sound, qboolean stdpath)
+{
+ sfx_t *sfx;
+ int ch_ind;
+
+ if (!snd_initialized.integer || nosound.integer)
+ return true;
+
+ sfx = S_PrecacheSound (sound, true, stdpath, false);
+ if (!sfx)
+ {
+ Con_Printf("S_LocalSound: can't precache %s\n", sound);
+ return false;
+ }
+
+ ch_ind = S_StartSound (cl.viewentity, 0, sfx, vec3_origin, 1, 1);
+ if (ch_ind < 0)
+ return false;
+
+ channels[ch_ind].flags |= CHANNELFLAG_LOCALSOUND;
+ return true;
+}
projects / xonotic / darkplaces.git / commitdiff