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 #include "cl_collision.h"
31 #define SND_MIN_SPEED 8000
32 #define SND_MAX_SPEED 192000
33 #define SND_MIN_WIDTH 1
34 #define SND_MAX_WIDTH 2
35 #define SND_MIN_CHANNELS 1
36 #define SND_MAX_CHANNELS 8
37 #if SND_LISTENERS != 8
38 # error this data only supports up to 8 channel, update it!
41 speakerlayout_t snd_speakerlayout;
43 // Our speaker layouts are based on ALSA. They differ from those
44 // Win32 and Mac OS X APIs use when there's more than 4 channels.
45 // (rear left + rear right, and front center + LFE are swapped).
46 #define SND_SPEAKERLAYOUTS (sizeof(snd_speakerlayouts) / sizeof(snd_speakerlayouts[0]))
47 static const speakerlayout_t snd_speakerlayouts[] =
52 {0, 45, 0.2f, 0.2f, 0.5f}, // front left
53 {1, 315, 0.2f, 0.2f, 0.5f}, // front right
54 {2, 135, 0.2f, 0.2f, 0.5f}, // rear left
55 {3, 225, 0.2f, 0.2f, 0.5f}, // rear right
56 {4, 0, 0.2f, 0.2f, 0.5f}, // front center
57 {5, 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)
58 {6, 90, 0.2f, 0.2f, 0.5f}, // side left
59 {7, 180, 0.2f, 0.2f, 0.5f}, // side right
65 {0, 45, 0.2f, 0.2f, 0.5f}, // front left
66 {1, 315, 0.2f, 0.2f, 0.5f}, // front right
67 {2, 135, 0.2f, 0.2f, 0.5f}, // rear left
68 {3, 225, 0.2f, 0.2f, 0.5f}, // rear right
69 {4, 0, 0.2f, 0.2f, 0.5f}, // front center
70 {5, 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)
76 // these systems sometimes have a subwoofer as well, but it has no
80 {0, 45, 0.3f, 0.3f, 0.8f}, // front left
81 {1, 315, 0.3f, 0.3f, 0.8f}, // front right
82 {2, 135, 0.3f, 0.3f, 0.8f}, // rear left
83 {3, 225, 0.3f, 0.3f, 0.8f}, // rear right
91 // these systems sometimes have a subwoofer as well, but it has no
95 {0, 90, 0.5f, 0.5f, 1}, // side left
96 {1, 270, 0.5f, 0.5f, 1}, // side right
108 {0, 0, 0, 1, 1}, // center
121 // =======================================================================
122 // Internal sound data & structures
123 // =======================================================================
125 channel_t channels[MAX_CHANNELS];
126 unsigned int total_channels;
128 snd_ringbuffer_t *snd_renderbuffer = NULL;
129 static unsigned int soundtime = 0;
130 static unsigned int oldpaintedtime = 0;
131 static unsigned int extrasoundtime = 0;
132 static double snd_starttime = 0.0;
133 qboolean snd_threaded = false;
134 qboolean snd_usethreadedmixing = false;
136 vec3_t listener_origin;
137 matrix4x4_t listener_basematrix;
138 static unsigned char *listener_pvs = NULL;
139 static int listener_pvsbytes = 0;
140 matrix4x4_t listener_matrix[SND_LISTENERS];
141 mempool_t *snd_mempool;
143 // Linked list of known sfx
144 static sfx_t *known_sfx = NULL;
146 static qboolean sound_spatialized = false;
148 qboolean simsound = false;
150 static qboolean recording_sound = false;
153 static int current_swapstereo = false;
154 static int current_channellayout = SND_CHANNELLAYOUT_AUTO;
155 static int current_channellayout_used = SND_CHANNELLAYOUT_AUTO;
157 static float spatialpower, spatialmin, spatialdiff, spatialoffset, spatialfactor;
158 typedef enum { SPATIAL_NONE, SPATIAL_LOG, SPATIAL_POW, SPATIAL_THRESH } spatialmethod_t;
159 spatialmethod_t spatialmethod;
161 // Cvars declared in sound.h (part of the sound API)
162 cvar_t bgmvolume = {CVAR_SAVE, "bgmvolume", "1", "volume of background music (such as CD music or replacement files such as sound/cdtracks/track002.ogg)"};
163 cvar_t mastervolume = {CVAR_SAVE, "mastervolume", "0.7", "master volume"};
164 cvar_t volume = {CVAR_SAVE, "volume", "0.7", "volume of sound effects"};
165 cvar_t snd_initialized = { CVAR_READONLY, "snd_initialized", "0", "indicates the sound subsystem is active"};
166 cvar_t snd_staticvolume = {CVAR_SAVE, "snd_staticvolume", "1", "volume of ambient sound effects (such as swampy sounds at the start of e1m2)"};
167 cvar_t snd_soundradius = {CVAR_SAVE, "snd_soundradius", "1200", "radius of weapon sounds and other standard sound effects (monster idle noises are half this radius and flickering light noises are one third of this radius)"};
168 cvar_t snd_attenuation_exponent = {CVAR_SAVE, "snd_attenuation_exponent", "1", "Exponent of (1-radius) in sound attenuation formula"};
169 cvar_t snd_attenuation_decibel = {CVAR_SAVE, "snd_attenuation_decibel", "0", "Decibel sound attenuation per sound radius distance"};
170 cvar_t snd_spatialization_min_radius = {CVAR_SAVE, "snd_spatialization_min_radius", "10000", "use minimum spatialization above to this radius"};
171 cvar_t snd_spatialization_max_radius = {CVAR_SAVE, "snd_spatialization_max_radius", "100", "use maximum spatialization below this radius"};
172 cvar_t snd_spatialization_min = {CVAR_SAVE, "snd_spatialization_min", "0.70", "minimum spatializazion of sounds"};
173 cvar_t snd_spatialization_max = {CVAR_SAVE, "snd_spatialization_max", "0.95", "maximum spatialization of sounds"};
174 cvar_t snd_spatialization_power = {CVAR_SAVE, "snd_spatialization_power", "0", "exponent of the spatialization falloff curve (0: logarithmic)"};
175 cvar_t snd_spatialization_control = {CVAR_SAVE, "snd_spatialization_control", "0", "enable spatialization control (headphone friendly mode)"};
176 cvar_t snd_spatialization_prologic = {CVAR_SAVE, "snd_spatialization_prologic", "0", "use dolby prologic (I, II or IIx) encoding (snd_channels must be 2)"};
177 cvar_t snd_spatialization_prologic_frontangle = {CVAR_SAVE, "snd_spatialization_prologic_frontangle", "30", "the angle between the front speakers and the center speaker"};
178 cvar_t snd_spatialization_occlusion = {CVAR_SAVE, "snd_spatialization_occlusion", "1", "enable occlusion testing on spatialized sounds, which simply quiets sounds that are blocked by the world; 1 enables PVS method, 2 enables LineOfSight method, 3 enables both"};
180 // Cvars declared in snd_main.h (shared with other snd_*.c files)
181 cvar_t _snd_mixahead = {CVAR_SAVE, "_snd_mixahead", "0.15", "how much sound to mix ahead of time"};
182 cvar_t snd_streaming = { CVAR_SAVE, "snd_streaming", "1", "enables keeping compressed ogg sound files compressed, decompressing them only as needed, otherwise they will be decompressed completely at load (may use a lot of memory); when set to 2, streaming is performed even if this would waste memory"};
183 cvar_t snd_streaming_length = { CVAR_SAVE, "snd_streaming_length", "1", "decompress sounds completely if they are less than this play time when snd_streaming is 1"};
184 cvar_t snd_swapstereo = {CVAR_SAVE, "snd_swapstereo", "0", "swaps left/right speakers for old ISA soundblaster cards"};
185 extern cvar_t v_flipped;
186 cvar_t snd_channellayout = {0, "snd_channellayout", "0", "channel layout. Can be 0 (auto - snd_restart needed), 1 (standard layout), or 2 (ALSA layout)"};
187 cvar_t snd_mutewhenidle = {CVAR_SAVE, "snd_mutewhenidle", "1", "whether to disable sound output when game window is inactive"};
188 cvar_t snd_maxchannelvolume = {CVAR_SAVE, "snd_maxchannelvolume", "10", "maximum volume of a single sound"};
189 cvar_t snd_softclip = {CVAR_SAVE, "snd_softclip", "0", "Use soft-clipping. Soft-clipping can make the sound more smooth if very high volume levels are used. Enable this option if the dynamic range of the loudspeakers is very low. WARNING: This feature creates distortion and should be considered a last resort."};
190 //cvar_t snd_softclip = {CVAR_SAVE, "snd_softclip", "0", "Use soft-clipping (when set to 2, use it even if output is floating point). Soft-clipping can make the sound more smooth if very high volume levels are used. Enable this option if the dynamic range of the loudspeakers is very low. WARNING: This feature creates distortion and should be considered a last resort."};
191 cvar_t snd_entchannel0volume = {CVAR_SAVE, "snd_entchannel0volume", "1", "volume multiplier of the auto-allocate entity channel of regular entities (DEPRECATED)"};
192 cvar_t snd_entchannel1volume = {CVAR_SAVE, "snd_entchannel1volume", "1", "volume multiplier of the 1st entity channel of regular entities (DEPRECATED)"};
193 cvar_t snd_entchannel2volume = {CVAR_SAVE, "snd_entchannel2volume", "1", "volume multiplier of the 2nd entity channel of regular entities (DEPRECATED)"};
194 cvar_t snd_entchannel3volume = {CVAR_SAVE, "snd_entchannel3volume", "1", "volume multiplier of the 3rd entity channel of regular entities (DEPRECATED)"};
195 cvar_t snd_entchannel4volume = {CVAR_SAVE, "snd_entchannel4volume", "1", "volume multiplier of the 4th entity channel of regular entities (DEPRECATED)"};
196 cvar_t snd_entchannel5volume = {CVAR_SAVE, "snd_entchannel5volume", "1", "volume multiplier of the 5th entity channel of regular entities (DEPRECATED)"};
197 cvar_t snd_entchannel6volume = {CVAR_SAVE, "snd_entchannel6volume", "1", "volume multiplier of the 6th entity channel of regular entities (DEPRECATED)"};
198 cvar_t snd_entchannel7volume = {CVAR_SAVE, "snd_entchannel7volume", "1", "volume multiplier of the 7th entity channel of regular entities (DEPRECATED)"};
199 cvar_t snd_playerchannel0volume = {CVAR_SAVE, "snd_playerchannel0volume", "1", "volume multiplier of the auto-allocate entity channel of player entities (DEPRECATED)"};
200 cvar_t snd_playerchannel1volume = {CVAR_SAVE, "snd_playerchannel1volume", "1", "volume multiplier of the 1st entity channel of player entities (DEPRECATED)"};
201 cvar_t snd_playerchannel2volume = {CVAR_SAVE, "snd_playerchannel2volume", "1", "volume multiplier of the 2nd entity channel of player entities (DEPRECATED)"};
202 cvar_t snd_playerchannel3volume = {CVAR_SAVE, "snd_playerchannel3volume", "1", "volume multiplier of the 3rd entity channel of player entities (DEPRECATED)"};
203 cvar_t snd_playerchannel4volume = {CVAR_SAVE, "snd_playerchannel4volume", "1", "volume multiplier of the 4th entity channel of player entities (DEPRECATED)"};
204 cvar_t snd_playerchannel5volume = {CVAR_SAVE, "snd_playerchannel5volume", "1", "volume multiplier of the 5th entity channel of player entities (DEPRECATED)"};
205 cvar_t snd_playerchannel6volume = {CVAR_SAVE, "snd_playerchannel6volume", "1", "volume multiplier of the 6th entity channel of player entities (DEPRECATED)"};
206 cvar_t snd_playerchannel7volume = {CVAR_SAVE, "snd_playerchannel7volume", "1", "volume multiplier of the 7th entity channel of player entities (DEPRECATED)"};
207 cvar_t snd_worldchannel0volume = {CVAR_SAVE, "snd_worldchannel0volume", "1", "volume multiplier of the auto-allocate entity channel of the world entity (DEPRECATED)"};
208 cvar_t snd_worldchannel1volume = {CVAR_SAVE, "snd_worldchannel1volume", "1", "volume multiplier of the 1st entity channel of the world entity (DEPRECATED)"};
209 cvar_t snd_worldchannel2volume = {CVAR_SAVE, "snd_worldchannel2volume", "1", "volume multiplier of the 2nd entity channel of the world entity (DEPRECATED)"};
210 cvar_t snd_worldchannel3volume = {CVAR_SAVE, "snd_worldchannel3volume", "1", "volume multiplier of the 3rd entity channel of the world entity (DEPRECATED)"};
211 cvar_t snd_worldchannel4volume = {CVAR_SAVE, "snd_worldchannel4volume", "1", "volume multiplier of the 4th entity channel of the world entity (DEPRECATED)"};
212 cvar_t snd_worldchannel5volume = {CVAR_SAVE, "snd_worldchannel5volume", "1", "volume multiplier of the 5th entity channel of the world entity (DEPRECATED)"};
213 cvar_t snd_worldchannel6volume = {CVAR_SAVE, "snd_worldchannel6volume", "1", "volume multiplier of the 6th entity channel of the world entity (DEPRECATED)"};
214 cvar_t snd_worldchannel7volume = {CVAR_SAVE, "snd_worldchannel7volume", "1", "volume multiplier of the 7th entity channel of the world entity (DEPRECATED)"};
215 cvar_t snd_csqcchannel0volume = {CVAR_SAVE, "snd_csqcchannel0volume", "1", "volume multiplier of the auto-allocate entity channel CSQC entities (DEPRECATED)"};
216 cvar_t snd_csqcchannel1volume = {CVAR_SAVE, "snd_csqcchannel1volume", "1", "volume multiplier of the 1st entity channel of CSQC entities (DEPRECATED)"};
217 cvar_t snd_csqcchannel2volume = {CVAR_SAVE, "snd_csqcchannel2volume", "1", "volume multiplier of the 2nd entity channel of CSQC entities (DEPRECATED)"};
218 cvar_t snd_csqcchannel3volume = {CVAR_SAVE, "snd_csqcchannel3volume", "1", "volume multiplier of the 3rd entity channel of CSQC entities (DEPRECATED)"};
219 cvar_t snd_csqcchannel4volume = {CVAR_SAVE, "snd_csqcchannel4volume", "1", "volume multiplier of the 4th entity channel of CSQC entities (DEPRECATED)"};
220 cvar_t snd_csqcchannel5volume = {CVAR_SAVE, "snd_csqcchannel5volume", "1", "volume multiplier of the 5th entity channel of CSQC entities (DEPRECATED)"};
221 cvar_t snd_csqcchannel6volume = {CVAR_SAVE, "snd_csqcchannel6volume", "1", "volume multiplier of the 6th entity channel of CSQC entities (DEPRECATED)"};
222 cvar_t snd_csqcchannel7volume = {CVAR_SAVE, "snd_csqcchannel7volume", "1", "volume multiplier of the 7th entity channel of CSQC entities (DEPRECATED)"};
223 cvar_t snd_channel0volume = {CVAR_SAVE, "snd_channel0volume", "1", "volume multiplier of the auto-allocate entity channel"};
224 cvar_t snd_channel1volume = {CVAR_SAVE, "snd_channel1volume", "1", "volume multiplier of the 1st entity channel"};
225 cvar_t snd_channel2volume = {CVAR_SAVE, "snd_channel2volume", "1", "volume multiplier of the 2nd entity channel"};
226 cvar_t snd_channel3volume = {CVAR_SAVE, "snd_channel3volume", "1", "volume multiplier of the 3rd entity channel"};
227 cvar_t snd_channel4volume = {CVAR_SAVE, "snd_channel4volume", "1", "volume multiplier of the 4th entity channel"};
228 cvar_t snd_channel5volume = {CVAR_SAVE, "snd_channel5volume", "1", "volume multiplier of the 5th entity channel"};
229 cvar_t snd_channel6volume = {CVAR_SAVE, "snd_channel6volume", "1", "volume multiplier of the 6th entity channel"};
230 cvar_t snd_channel7volume = {CVAR_SAVE, "snd_channel7volume", "1", "volume multiplier of the 7th entity channel"};
233 static cvar_t nosound = {0, "nosound", "0", "disables sound"};
234 static cvar_t snd_precache = {0, "snd_precache", "1", "loads sounds before they are used"};
235 static cvar_t ambient_level = {0, "ambient_level", "0.3", "volume of environment noises (water and wind)"};
236 static cvar_t ambient_fade = {0, "ambient_fade", "100", "rate of volume fading when moving from one environment to another"};
237 static cvar_t snd_noextraupdate = {0, "snd_noextraupdate", "0", "disables extra sound mixer calls that are meant to reduce the chance of sound breakup at very low framerates"};
238 static cvar_t snd_show = {0, "snd_show", "0", "shows some statistics about sound mixing"};
240 // Default sound format is 48KHz, 32bit float, stereo
241 // (48KHz because a lot of onboard sound cards sucks at any other speed)
242 static cvar_t snd_speed = {CVAR_SAVE, "snd_speed", "48000", "sound output frequency, in hertz"};
243 static cvar_t snd_width = {CVAR_SAVE, "snd_width", "4", "sound output precision, in bytes - 1 = 8bit, 2 = 16bit, 4 = 32bit float"};
244 static cvar_t snd_channels = {CVAR_SAVE, "snd_channels", "2", "number of channels for the sound output (2 for stereo; up to 8 supported for 3D sound)"};
246 static cvar_t snd_startloopingsounds = {0, "snd_startloopingsounds", "1", "whether to start sounds that would loop (you want this to be 1); existing sounds are not affected"};
247 static cvar_t snd_startnonloopingsounds = {0, "snd_startnonloopingsounds", "1", "whether to start sounds that would not loop (you want this to be 1); existing sounds are not affected"};
250 static cvar_t snd_identicalsoundrandomization_time = {0, "snd_identicalsoundrandomization_time", "0.1", "how much seconds to randomly skip (positive) or delay (negative) sounds when multiple identical sounds are started on the same frame"};
251 static cvar_t snd_identicalsoundrandomization_tics = {0, "snd_identicalsoundrandomization_tics", "0", "if nonzero, how many tics to limit sound randomization as defined by snd_identicalsoundrandomization_time"};
254 static sfx_t* ambient_sfxs [2] = { NULL, NULL };
255 static const char* ambient_names [2] = { "sound/ambience/water1.wav", "sound/ambience/wind2.wav" };
258 // ====================================================================
260 // ====================================================================
262 void S_FreeSfx (sfx_t *sfx, qboolean force);
264 static void S_Play_Common (float fvol, float attenuation)
267 char name [MAX_QPATH];
271 while (i < Cmd_Argc ())
273 // Get the name, and appends ".wav" as an extension if there's none
274 strlcpy (name, Cmd_Argv (i), sizeof (name));
275 if (!strrchr (name, '.'))
276 strlcat (name, ".wav", sizeof (name));
279 // If we need to get the volume from the command line
282 fvol = atof (Cmd_Argv (i));
286 sfx = S_PrecacheSound (name, true, true);
289 ch_ind = S_StartSound (-1, 0, sfx, listener_origin, fvol, attenuation);
291 // Free the sfx if the file didn't exist
293 S_FreeSfx (sfx, false);
295 channels[ch_ind].flags |= CHANNELFLAG_LOCALSOUND;
300 static void S_Play_f(void)
302 S_Play_Common (1.0f, 1.0f);
305 static void S_Play2_f(void)
307 S_Play_Common (1.0f, 0.0f);
310 static void S_PlayVol_f(void)
312 S_Play_Common (-1.0f, 0.0f);
315 static void S_SoundList_f (void)
322 for (sfx = known_sfx, i = 0; sfx != NULL; sfx = sfx->next, i++)
324 if (sfx->fetcher != NULL)
328 size = (unsigned int)sfx->memsize;
329 Con_Printf ("%c%c%c(%5iHz %2db %6s) %8i : %s\n",
330 (sfx->loopstart < sfx->total_length) ? 'L' : ' ',
331 (sfx->flags & SFXFLAG_STREAMED) ? 'S' : ' ',
332 (sfx->flags & SFXFLAG_MENUSOUND) ? 'P' : ' ',
334 sfx->format.width * 8,
335 (sfx->format.channels == 1) ? "mono" : "stereo",
341 Con_Printf (" ( unknown ) unloaded : %s\n", sfx->name);
343 Con_Printf("Total resident: %i\n", total);
347 static void S_SoundInfo_f(void)
349 if (snd_renderbuffer == NULL)
351 Con_Print("sound system not started\n");
355 Con_Printf("%5d speakers\n", snd_renderbuffer->format.channels);
356 Con_Printf("%5d frames\n", snd_renderbuffer->maxframes);
357 Con_Printf("%5d samplebits\n", snd_renderbuffer->format.width * 8);
358 Con_Printf("%5d speed\n", snd_renderbuffer->format.speed);
359 Con_Printf("%5u total_channels\n", total_channels);
363 int S_GetSoundRate(void)
365 return snd_renderbuffer ? snd_renderbuffer->format.speed : 0;
368 int S_GetSoundChannels(void)
370 return snd_renderbuffer ? snd_renderbuffer->format.channels : 0;
374 #define SWAP_LISTENERS(l1, l2, tmpl) { tmpl = (l1); (l1) = (l2); (l2) = tmpl; }
376 static void S_SetChannelLayout (void)
379 listener_t swaplistener;
380 listener_t *listeners;
383 for (i = 0; i < SND_SPEAKERLAYOUTS; i++)
384 if (snd_speakerlayouts[i].channels == snd_renderbuffer->format.channels)
386 if (i >= SND_SPEAKERLAYOUTS)
388 Con_Printf("S_SetChannelLayout: can't find the speaker layout for %hu channels. Defaulting to mono output\n",
389 snd_renderbuffer->format.channels);
390 i = SND_SPEAKERLAYOUTS - 1;
393 snd_speakerlayout = snd_speakerlayouts[i];
394 listeners = snd_speakerlayout.listeners;
396 // Swap the left and right channels if snd_swapstereo is set
397 if (boolxor(snd_swapstereo.integer, v_flipped.integer))
399 switch (snd_speakerlayout.channels)
402 SWAP_LISTENERS(listeners[6], listeners[7], swaplistener);
406 SWAP_LISTENERS(listeners[2], listeners[3], swaplistener);
409 SWAP_LISTENERS(listeners[0], listeners[1], swaplistener);
420 if (snd_channellayout.integer < SND_CHANNELLAYOUT_AUTO ||
421 snd_channellayout.integer > SND_CHANNELLAYOUT_ALSA)
422 Cvar_SetValueQuick (&snd_channellayout, SND_CHANNELLAYOUT_STANDARD);
424 if (snd_channellayout.integer == SND_CHANNELLAYOUT_AUTO)
426 // If we're in the sound engine initialization
427 if (current_channellayout_used == SND_CHANNELLAYOUT_AUTO)
429 layout = SND_CHANNELLAYOUT_STANDARD;
430 Cvar_SetValueQuick (&snd_channellayout, layout);
433 layout = current_channellayout_used;
436 layout = snd_channellayout.integer;
438 // Convert our layout (= ALSA) to the standard layout if necessary
439 if (snd_speakerlayout.channels == 6 || snd_speakerlayout.channels == 8)
441 if (layout == SND_CHANNELLAYOUT_STANDARD)
443 SWAP_LISTENERS(listeners[2], listeners[4], swaplistener);
444 SWAP_LISTENERS(listeners[3], listeners[5], swaplistener);
447 Con_Printf("S_SetChannelLayout: using %s speaker layout for 3D sound\n",
448 (layout == SND_CHANNELLAYOUT_ALSA) ? "ALSA" : "standard");
451 current_swapstereo = boolxor(snd_swapstereo.integer, v_flipped.integer);
452 current_channellayout = snd_channellayout.integer;
453 current_channellayout_used = layout;
457 void S_Startup (void)
459 qboolean fixed_speed, fixed_width, fixed_channels;
460 snd_format_t chosen_fmt;
461 static snd_format_t prev_render_format = {0, 0, 0};
468 if (!snd_initialized.integer)
473 fixed_channels = false;
475 // Get the starting sound format from the cvars
476 chosen_fmt.speed = snd_speed.integer;
477 chosen_fmt.width = snd_width.integer;
478 chosen_fmt.channels = snd_channels.integer;
480 // Check the environment variables to see if the player wants a particular sound format
482 _dupenv_s(&env, &envlen, "QUAKE_SOUND_CHANNELS");
484 env = getenv("QUAKE_SOUND_CHANNELS");
488 chosen_fmt.channels = atoi (env);
492 fixed_channels = true;
495 _dupenv_s(&env, &envlen, "QUAKE_SOUND_SPEED");
497 env = getenv("QUAKE_SOUND_SPEED");
501 chosen_fmt.speed = atoi (env);
508 _dupenv_s(&env, &envlen, "QUAKE_SOUND_SAMPLEBITS");
510 env = getenv("QUAKE_SOUND_SAMPLEBITS");
514 chosen_fmt.width = atoi (env) / 8;
521 // Parse the command line to see if the player wants a particular sound format
522 // COMMANDLINEOPTION: Sound: -sndquad sets sound output to 4 channel surround
523 if (COM_CheckParm ("-sndquad") != 0)
525 chosen_fmt.channels = 4;
526 fixed_channels = true;
528 // COMMANDLINEOPTION: Sound: -sndstereo sets sound output to stereo
529 else if (COM_CheckParm ("-sndstereo") != 0)
531 chosen_fmt.channels = 2;
532 fixed_channels = true;
534 // COMMANDLINEOPTION: Sound: -sndmono sets sound output to mono
535 else if (COM_CheckParm ("-sndmono") != 0)
537 chosen_fmt.channels = 1;
538 fixed_channels = true;
540 // COMMANDLINEOPTION: Sound: -sndspeed <hz> chooses sound output rate (supported values are 48000, 44100, 32000, 24000, 22050, 16000, 11025 (quake), 8000)
541 i = COM_CheckParm ("-sndspeed");
542 if (0 < i && i < com_argc - 1)
544 chosen_fmt.speed = atoi (com_argv[i + 1]);
547 // COMMANDLINEOPTION: Sound: -sndbits <bits> chooses 8 bit or 16 bit or 32bit float sound output
548 i = COM_CheckParm ("-sndbits");
549 if (0 < i && i < com_argc - 1)
551 chosen_fmt.width = atoi (com_argv[i + 1]) / 8;
556 // LadyHavoc: now you can with the resampler...
557 // You can't change sound speed after start time (not yet supported)
558 if (prev_render_format.speed != 0)
561 if (chosen_fmt.speed != prev_render_format.speed)
563 Con_Printf("S_Startup: sound speed has changed! This is NOT supported yet. Falling back to previous speed (%u Hz)\n",
564 prev_render_format.speed);
565 chosen_fmt.speed = prev_render_format.speed;
571 if (chosen_fmt.speed < SND_MIN_SPEED)
573 chosen_fmt.speed = SND_MIN_SPEED;
576 else if (chosen_fmt.speed > SND_MAX_SPEED)
578 chosen_fmt.speed = SND_MAX_SPEED;
582 if (chosen_fmt.width < SND_MIN_WIDTH)
584 chosen_fmt.width = SND_MIN_WIDTH;
587 else if (chosen_fmt.width == 3)
589 chosen_fmt.width = 4;
592 else if (chosen_fmt.width > SND_MAX_WIDTH)
594 chosen_fmt.width = SND_MAX_WIDTH;
598 if (chosen_fmt.channels < SND_MIN_CHANNELS)
600 chosen_fmt.channels = SND_MIN_CHANNELS;
601 fixed_channels = false;
603 else if (chosen_fmt.channels > SND_MAX_CHANNELS)
605 chosen_fmt.channels = SND_MAX_CHANNELS;
606 fixed_channels = false;
609 // create the sound buffer used for sumitting the samples to the plaform-dependent module
612 Con_Printf("S_Startup: initializing sound output format: %dHz, %d bit, %d channels...\n",
615 chosen_fmt.channels);
617 if (!SndSys_Init(&chosen_fmt))
619 Con_Print("S_Startup: SndSys_Init failed.\n");
620 sound_spatialized = false;
626 snd_renderbuffer = Snd_CreateRingBuffer(&chosen_fmt, 0, NULL);
627 Con_Print ("S_Startup: simulating sound output\n");
630 memcpy(&prev_render_format, &snd_renderbuffer->format, sizeof(prev_render_format));
631 Con_Printf("Sound format: %dHz, %d channels, %d bits per sample\n",
632 chosen_fmt.speed, chosen_fmt.channels, chosen_fmt.width * 8);
635 if (snd_speed.integer != (int)chosen_fmt.speed)
636 Cvar_SetValueQuick(&snd_speed, chosen_fmt.speed);
637 if (snd_width.integer != chosen_fmt.width)
638 Cvar_SetValueQuick(&snd_width, chosen_fmt.width);
639 if (snd_channels.integer != chosen_fmt.channels)
640 Cvar_SetValueQuick(&snd_channels, chosen_fmt.channels);
642 current_channellayout_used = SND_CHANNELLAYOUT_AUTO;
643 S_SetChannelLayout();
645 snd_starttime = realtime;
647 // If the sound module has already run, add an extra time to make sure
648 // the sound time doesn't decrease, to not confuse playing SFXs
649 if (oldpaintedtime != 0)
651 // The extra time must be a multiple of the render buffer size
652 // to avoid modifying the current position in the buffer,
653 // some modules write directly to a shared (DMA) buffer
654 extrasoundtime = oldpaintedtime + snd_renderbuffer->maxframes - 1;
655 extrasoundtime -= extrasoundtime % snd_renderbuffer->maxframes;
656 Con_Printf("S_Startup: extra sound time = %u\n", extrasoundtime);
658 soundtime = extrasoundtime;
662 snd_renderbuffer->startframe = soundtime;
663 snd_renderbuffer->endframe = soundtime;
664 recording_sound = false;
667 void S_Shutdown(void)
669 if (snd_renderbuffer == NULL)
672 oldpaintedtime = snd_renderbuffer->endframe;
676 Mem_Free(snd_renderbuffer->ring);
677 Mem_Free(snd_renderbuffer);
678 snd_renderbuffer = NULL;
683 sound_spatialized = false;
686 static void S_Restart_f(void)
688 // NOTE: we can't free all sounds if we are running a map (this frees sfx_t that are still referenced by precaches)
689 // So, refuse to do this if we are connected.
690 if(cls.state == ca_connected)
692 Con_Printf("snd_restart would wreak havoc if you do that while connected!\n");
707 Cvar_RegisterVariable(&volume);
708 Cvar_RegisterVariable(&bgmvolume);
709 Cvar_RegisterVariable(&mastervolume);
710 Cvar_RegisterVariable(&snd_staticvolume);
711 Cvar_RegisterVariable(&snd_entchannel0volume);
712 Cvar_RegisterVariable(&snd_entchannel1volume);
713 Cvar_RegisterVariable(&snd_entchannel2volume);
714 Cvar_RegisterVariable(&snd_entchannel3volume);
715 Cvar_RegisterVariable(&snd_entchannel4volume);
716 Cvar_RegisterVariable(&snd_entchannel5volume);
717 Cvar_RegisterVariable(&snd_entchannel6volume);
718 Cvar_RegisterVariable(&snd_entchannel7volume);
719 Cvar_RegisterVariable(&snd_worldchannel0volume);
720 Cvar_RegisterVariable(&snd_worldchannel1volume);
721 Cvar_RegisterVariable(&snd_worldchannel2volume);
722 Cvar_RegisterVariable(&snd_worldchannel3volume);
723 Cvar_RegisterVariable(&snd_worldchannel4volume);
724 Cvar_RegisterVariable(&snd_worldchannel5volume);
725 Cvar_RegisterVariable(&snd_worldchannel6volume);
726 Cvar_RegisterVariable(&snd_worldchannel7volume);
727 Cvar_RegisterVariable(&snd_playerchannel0volume);
728 Cvar_RegisterVariable(&snd_playerchannel1volume);
729 Cvar_RegisterVariable(&snd_playerchannel2volume);
730 Cvar_RegisterVariable(&snd_playerchannel3volume);
731 Cvar_RegisterVariable(&snd_playerchannel4volume);
732 Cvar_RegisterVariable(&snd_playerchannel5volume);
733 Cvar_RegisterVariable(&snd_playerchannel6volume);
734 Cvar_RegisterVariable(&snd_playerchannel7volume);
735 Cvar_RegisterVariable(&snd_csqcchannel0volume);
736 Cvar_RegisterVariable(&snd_csqcchannel1volume);
737 Cvar_RegisterVariable(&snd_csqcchannel2volume);
738 Cvar_RegisterVariable(&snd_csqcchannel3volume);
739 Cvar_RegisterVariable(&snd_csqcchannel4volume);
740 Cvar_RegisterVariable(&snd_csqcchannel5volume);
741 Cvar_RegisterVariable(&snd_csqcchannel6volume);
742 Cvar_RegisterVariable(&snd_csqcchannel7volume);
743 Cvar_RegisterVariable(&snd_channel0volume);
744 Cvar_RegisterVariable(&snd_channel1volume);
745 Cvar_RegisterVariable(&snd_channel2volume);
746 Cvar_RegisterVariable(&snd_channel3volume);
747 Cvar_RegisterVariable(&snd_channel4volume);
748 Cvar_RegisterVariable(&snd_channel5volume);
749 Cvar_RegisterVariable(&snd_channel6volume);
750 Cvar_RegisterVariable(&snd_channel7volume);
752 Cvar_RegisterVariable(&snd_attenuation_exponent);
753 Cvar_RegisterVariable(&snd_attenuation_decibel);
755 Cvar_RegisterVariable(&snd_spatialization_min_radius);
756 Cvar_RegisterVariable(&snd_spatialization_max_radius);
757 Cvar_RegisterVariable(&snd_spatialization_min);
758 Cvar_RegisterVariable(&snd_spatialization_max);
759 Cvar_RegisterVariable(&snd_spatialization_power);
760 Cvar_RegisterVariable(&snd_spatialization_control);
761 Cvar_RegisterVariable(&snd_spatialization_occlusion);
762 Cvar_RegisterVariable(&snd_spatialization_prologic);
763 Cvar_RegisterVariable(&snd_spatialization_prologic_frontangle);
765 Cvar_RegisterVariable(&snd_speed);
766 Cvar_RegisterVariable(&snd_width);
767 Cvar_RegisterVariable(&snd_channels);
768 Cvar_RegisterVariable(&snd_mutewhenidle);
769 Cvar_RegisterVariable(&snd_maxchannelvolume);
770 Cvar_RegisterVariable(&snd_softclip);
772 Cvar_RegisterVariable(&snd_startloopingsounds);
773 Cvar_RegisterVariable(&snd_startnonloopingsounds);
775 Cvar_RegisterVariable(&snd_identicalsoundrandomization_time);
776 Cvar_RegisterVariable(&snd_identicalsoundrandomization_tics);
778 // COMMANDLINEOPTION: Sound: -nosound disables sound (including CD audio)
779 if (COM_CheckParm("-nosound"))
781 // dummy out Play and Play2 because mods stuffcmd that
782 Cmd_AddCommand("play", Host_NoOperation_f, "does nothing because -nosound was specified");
783 Cmd_AddCommand("play2", Host_NoOperation_f, "does nothing because -nosound was specified");
787 snd_mempool = Mem_AllocPool("sound", 0, NULL);
789 // COMMANDLINEOPTION: Sound: -simsound runs sound mixing but with no output
790 if (COM_CheckParm("-simsound"))
793 Cmd_AddCommand("play", S_Play_f, "play a sound at your current location (not heard by anyone else)");
794 Cmd_AddCommand("play2", S_Play2_f, "play a sound globally throughout the level (not heard by anyone else)");
795 Cmd_AddCommand("playvol", S_PlayVol_f, "play a sound at the specified volume level at your current location (not heard by anyone else)");
796 Cmd_AddCommand("stopsound", S_StopAllSounds, "silence");
797 Cmd_AddCommand("soundlist", S_SoundList_f, "list loaded sounds");
798 Cmd_AddCommand("soundinfo", S_SoundInfo_f, "print sound system information (such as channels and speed)");
799 Cmd_AddCommand("snd_restart", S_Restart_f, "restart sound system");
800 Cmd_AddCommand("snd_unloadallsounds", S_UnloadAllSounds_f, "unload all sound files");
802 Cvar_RegisterVariable(&nosound);
803 Cvar_RegisterVariable(&snd_precache);
804 Cvar_RegisterVariable(&snd_initialized);
805 Cvar_RegisterVariable(&snd_streaming);
806 Cvar_RegisterVariable(&snd_streaming_length);
807 Cvar_RegisterVariable(&ambient_level);
808 Cvar_RegisterVariable(&ambient_fade);
809 Cvar_RegisterVariable(&snd_noextraupdate);
810 Cvar_RegisterVariable(&snd_show);
811 Cvar_RegisterVariable(&_snd_mixahead);
812 Cvar_RegisterVariable(&snd_swapstereo); // for people with backwards sound wiring
813 Cvar_RegisterVariable(&snd_channellayout);
814 Cvar_RegisterVariable(&snd_soundradius);
816 Cvar_SetValueQuick(&snd_initialized, true);
820 total_channels = MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS; // no statics
821 memset(channels, 0, MAX_CHANNELS * sizeof(channel_t));
831 Shutdown and free all resources
834 void S_Terminate (void)
840 while (known_sfx != NULL)
841 S_FreeSfx (known_sfx, true);
843 Cvar_SetValueQuick (&snd_initialized, false);
844 Mem_FreePool (&snd_mempool);
853 void S_UnloadAllSounds_f (void)
857 // NOTE: we can't free all sounds if we are running a map (this frees sfx_t that are still referenced by precaches)
858 // So, refuse to do this if we are connected.
859 if(cls.state == ca_connected)
861 Con_Printf("snd_unloadallsounds would wreak havoc if you do that while connected!\n");
865 // stop any active sounds
868 // because the ambient sounds will be freed, clear the pointers
869 for (i = 0;i < (int)sizeof (ambient_sfxs) / (int)sizeof (ambient_sfxs[0]);i++)
870 ambient_sfxs[i] = NULL;
872 // now free all sounds
873 while (known_sfx != NULL)
874 S_FreeSfx (known_sfx, true);
883 sfx_t changevolume_sfx = {""};
884 sfx_t *S_FindName (const char *name)
888 if (!snd_initialized.integer)
891 if(!strcmp(name, changevolume_sfx.name))
892 return &changevolume_sfx;
894 if (strlen (name) >= sizeof (sfx->name))
896 Con_Printf ("S_FindName: sound name too long (%s)\n", name);
900 // Look for this sound in the list of known sfx
901 // TODO: hash table search?
902 for (sfx = known_sfx; sfx != NULL; sfx = sfx->next)
903 if(!strcmp (sfx->name, name))
906 // check for # in the beginning, try lookup by soundindex
907 if (name[0] == '#' && name[1])
909 int soundindex = atoi(name + 1);
910 if (soundindex > 0 && soundindex < MAX_SOUNDS)
911 if (cl.sound_precache[soundindex]->name[0])
912 return cl.sound_precache[soundindex];
915 // Add a sfx_t struct for this sound
916 sfx = (sfx_t *)Mem_Alloc (snd_mempool, sizeof (*sfx));
917 memset (sfx, 0, sizeof(*sfx));
918 strlcpy (sfx->name, name, sizeof (sfx->name));
919 sfx->memsize = sizeof(*sfx);
920 sfx->next = known_sfx;
932 void S_FreeSfx (sfx_t *sfx, qboolean force)
936 // Do not free a precached sound during purge
937 if (!force && (sfx->flags & (SFXFLAG_LEVELSOUND | SFXFLAG_MENUSOUND)))
940 if (developer_loading.integer)
941 Con_Printf ("unloading sound %s\n", sfx->name);
943 // Remove it from the list of known sfx
944 if (sfx == known_sfx)
945 known_sfx = known_sfx->next;
950 for (prev_sfx = known_sfx; prev_sfx != NULL; prev_sfx = prev_sfx->next)
951 if (prev_sfx->next == sfx)
953 prev_sfx->next = sfx->next;
956 if (prev_sfx == NULL)
958 Con_Printf ("S_FreeSfx: Can't find SFX %s in the list!\n", sfx->name);
963 // Stop all channels using this sfx
964 for (i = 0; i < total_channels; i++)
966 if (channels[i].sfx == sfx)
968 Con_Printf("S_FreeSfx: stopping channel %i for sfx \"%s\"\n", i, sfx->name);
969 S_StopChannel (i, true, false);
974 if (sfx->fetcher != NULL && sfx->fetcher->freesfx != NULL)
975 sfx->fetcher->freesfx(sfx);
985 void S_ClearUsed (void)
991 // Start the ambient sounds and make them loop
992 for (i = 0; i < sizeof (ambient_sfxs) / sizeof (ambient_sfxs[0]); i++)
994 // Precache it if it's not done (and pass false for levelsound because these are permanent)
995 if (ambient_sfxs[i] == NULL)
996 ambient_sfxs[i] = S_PrecacheSound (ambient_names[i], false, false);
997 if (ambient_sfxs[i] != NULL)
999 channels[i].sfx = ambient_sfxs[i];
1000 channels[i].sfx->flags |= SFXFLAG_MENUSOUND;
1001 channels[i].flags |= CHANNELFLAG_FORCELOOP;
1002 channels[i].basevolume = 0.0f;
1003 channels[i].basespeed = channels[i].mixspeed = 1.0f;
1007 // Clear SFXFLAG_LEVELSOUND flag so that sounds not precached this level will be purged
1008 for (sfx = known_sfx; sfx != NULL; sfx = sfx->next)
1009 sfx->flags &= ~SFXFLAG_LEVELSOUND;
1017 void S_PurgeUnused(void)
1022 // Free all not-precached per-level sfx
1023 for (sfx = known_sfx;sfx;sfx = sfxnext)
1025 sfxnext = sfx->next;
1026 if (!(sfx->flags & (SFXFLAG_LEVELSOUND | SFXFLAG_MENUSOUND)))
1027 S_FreeSfx (sfx, false);
1037 sfx_t *S_PrecacheSound (const char *name, qboolean complain, qboolean levelsound)
1041 if (!snd_initialized.integer)
1044 if (name == NULL || name[0] == 0)
1047 sfx = S_FindName (name);
1052 // clear the FILEMISSING flag so that S_LoadSound will try again on a
1053 // previously missing file
1054 sfx->flags &= ~ SFXFLAG_FILEMISSING;
1056 // set a flag to indicate this has been precached for this level or permanently
1058 sfx->flags |= SFXFLAG_LEVELSOUND;
1060 sfx->flags |= SFXFLAG_MENUSOUND;
1062 if (!nosound.integer && snd_precache.integer)
1063 S_LoadSound(sfx, complain);
1074 float S_SoundLength(const char *name)
1078 if (!snd_initialized.integer)
1080 if (name == NULL || name[0] == 0)
1083 sfx = S_FindName(name);
1086 return sfx->total_length / (float) S_GetSoundRate();
1094 qboolean S_IsSoundPrecached (const sfx_t *sfx)
1096 return (sfx != NULL && sfx->fetcher != NULL) || (sfx == &changevolume_sfx);
1104 void S_BlockSound (void)
1115 void S_UnblockSound (void)
1125 Picks a channel based on priorities, empty slots, number of channels
1128 static channel_t *SND_PickChannel(int entnum, int entchannel)
1132 int first_life_left, life_left;
1134 sfx_t *sfx; // use this instead of ch->sfx->, because that is volatile.
1136 // Check for replacement sound, or find the best one to replace
1138 first_life_left = 0x7fffffff;
1140 // entity channels try to replace the existing sound on the channel
1141 // channels <= 0 are autochannels
1142 if (IS_CHAN_SINGLE(entchannel))
1144 for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++)
1146 ch = &channels[ch_idx];
1147 if (ch->entnum == entnum && ch->entchannel == entchannel)
1149 // always override sound from same entity
1150 S_StopChannel (ch_idx, true, false);
1151 return &channels[ch_idx];
1156 // there was no channel to override, so look for the first empty one
1157 for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++)
1159 ch = &channels[ch_idx];
1160 sfx = ch->sfx; // fetch the volatile variable
1163 // no sound on this channel
1164 first_to_die = ch_idx;
1165 goto emptychan_found;
1168 // don't let monster sounds override player sounds
1169 if ((ch->entnum == cl.viewentity || ch->entnum == CL_VM_GetViewEntity()) && !(entnum == cl.viewentity || entnum == CL_VM_GetViewEntity()))
1172 // don't override looped sounds
1173 if ((ch->flags & CHANNELFLAG_FORCELOOP) || sfx->loopstart < sfx->total_length)
1175 life_left = (int)((double)sfx->total_length - ch->position);
1177 if (life_left < first_life_left)
1179 first_life_left = life_left;
1180 first_to_die = ch_idx;
1184 if (first_to_die == -1)
1187 S_StopChannel (first_to_die, true, false);
1190 return &channels[first_to_die];
1197 Spatializes a channel
1200 extern cvar_t cl_gameplayfix_soundsmovewithentities;
1201 static void SND_Spatialize_WithSfx(channel_t *ch, qboolean isstatic, sfx_t *sfx)
1205 float angle_side, angle_front, angle_factor, mixspeed;
1206 vec_t dist, mastervol, intensity;
1210 // update sound origin if we know about the entity
1211 if (ch->entnum > 0 && cls.state == ca_connected && cl_gameplayfix_soundsmovewithentities.integer)
1213 if (ch->entnum >= MAX_EDICTS)
1215 //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]);
1217 if (ch->entnum > MAX_EDICTS)
1218 if (!CL_VM_GetEntitySoundOrigin(ch->entnum, ch->origin))
1219 ch->entnum = MAX_EDICTS; // entity was removed, disown sound
1221 else if (cl.entities[ch->entnum].state_current.active)
1224 //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]);
1225 model = CL_GetModelByIndex(cl.entities[ch->entnum].state_current.modelindex);
1226 if (model && model->soundfromcenter)
1227 VectorMAM(0.5f, cl.entities[ch->entnum].render.mins, 0.5f, cl.entities[ch->entnum].render.maxs, ch->origin);
1229 Matrix4x4_OriginFromMatrix(&cl.entities[ch->entnum].render.matrix, ch->origin);
1231 else if (cl.csqc_server2csqcentitynumber[ch->entnum])
1233 //Con_Printf("-- entnum %i (client %i) origin %f %f %f neworigin %f %f %f\n", ch->entnum, cl.csqc_server2csqcentitynumber[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]);
1235 if (!CL_VM_GetEntitySoundOrigin(cl.csqc_server2csqcentitynumber[ch->entnum] + MAX_EDICTS, ch->origin))
1236 ch->entnum = MAX_EDICTS; // entity was removed, disown sound
1240 mastervol = ch->basevolume;
1241 mixspeed = ch->basespeed;
1243 // TODO: implement doppler based on origin change relative to viewer and time of recent origin changes
1245 // Adjust volume of static sounds
1247 mastervol *= snd_staticvolume.value;
1248 else if(!(ch->flags & CHANNELFLAG_FULLVOLUME)) // same as SND_PaintChannel uses
1250 // old legacy separated cvars
1251 if(ch->entnum >= MAX_EDICTS)
1253 switch(ch->entchannel)
1255 case 0: mastervol *= snd_csqcchannel0volume.value; break;
1256 case 1: mastervol *= snd_csqcchannel1volume.value; break;
1257 case 2: mastervol *= snd_csqcchannel2volume.value; break;
1258 case 3: mastervol *= snd_csqcchannel3volume.value; break;
1259 case 4: mastervol *= snd_csqcchannel4volume.value; break;
1260 case 5: mastervol *= snd_csqcchannel5volume.value; break;
1261 case 6: mastervol *= snd_csqcchannel6volume.value; break;
1262 case 7: mastervol *= snd_csqcchannel7volume.value; break;
1266 else if(ch->entnum == 0)
1268 switch(ch->entchannel)
1270 case 0: mastervol *= snd_worldchannel0volume.value; break;
1271 case 1: mastervol *= snd_worldchannel1volume.value; break;
1272 case 2: mastervol *= snd_worldchannel2volume.value; break;
1273 case 3: mastervol *= snd_worldchannel3volume.value; break;
1274 case 4: mastervol *= snd_worldchannel4volume.value; break;
1275 case 5: mastervol *= snd_worldchannel5volume.value; break;
1276 case 6: mastervol *= snd_worldchannel6volume.value; break;
1277 case 7: mastervol *= snd_worldchannel7volume.value; break;
1281 else if(ch->entnum > 0 && ch->entnum <= cl.maxclients)
1283 switch(ch->entchannel)
1285 case 0: mastervol *= snd_playerchannel0volume.value; break;
1286 case 1: mastervol *= snd_playerchannel1volume.value; break;
1287 case 2: mastervol *= snd_playerchannel2volume.value; break;
1288 case 3: mastervol *= snd_playerchannel3volume.value; break;
1289 case 4: mastervol *= snd_playerchannel4volume.value; break;
1290 case 5: mastervol *= snd_playerchannel5volume.value; break;
1291 case 6: mastervol *= snd_playerchannel6volume.value; break;
1292 case 7: mastervol *= snd_playerchannel7volume.value; break;
1298 switch(ch->entchannel)
1300 case 0: mastervol *= snd_entchannel0volume.value; break;
1301 case 1: mastervol *= snd_entchannel1volume.value; break;
1302 case 2: mastervol *= snd_entchannel2volume.value; break;
1303 case 3: mastervol *= snd_entchannel3volume.value; break;
1304 case 4: mastervol *= snd_entchannel4volume.value; break;
1305 case 5: mastervol *= snd_entchannel5volume.value; break;
1306 case 6: mastervol *= snd_entchannel6volume.value; break;
1307 case 7: mastervol *= snd_entchannel7volume.value; break;
1312 switch(ch->entchannel)
1314 case 0: mastervol *= snd_channel0volume.value; break;
1315 case 1: mastervol *= snd_channel1volume.value; break;
1316 case 2: mastervol *= snd_channel2volume.value; break;
1317 case 3: mastervol *= snd_channel3volume.value; break;
1318 case 4: mastervol *= snd_channel4volume.value; break;
1319 case 5: mastervol *= snd_channel5volume.value; break;
1320 case 6: mastervol *= snd_channel6volume.value; break;
1321 case 7: mastervol *= snd_channel7volume.value; break;
1322 default: mastervol *= Cvar_VariableValueOr(va(vabuf, sizeof(vabuf), "snd_channel%dvolume", CHAN_ENGINE2CVAR(ch->entchannel)), 1.0); break;
1326 // If this channel does not manage its own volume (like CD tracks)
1327 if (!(ch->flags & CHANNELFLAG_FULLVOLUME))
1328 mastervol *= volume.value;
1330 if(snd_maxchannelvolume.value > 0)
1332 // clamp HERE to allow to go at most 10dB past mastervolume (before clamping), when mastervolume < -10dB (so relative volumes don't get too messy)
1333 mastervol = bound(0.0f, mastervol, 10.0f * snd_maxchannelvolume.value);
1336 // always apply "master"
1337 mastervol *= mastervolume.value;
1339 // add in ReplayGain very late; prevent clipping when close
1341 if(sfx->volume_peak > 0)
1343 // Replaygain support
1344 // Con_DPrintf("Setting volume on ReplayGain-enabled track... %f -> ", fvol);
1345 mastervol *= sfx->volume_mult;
1346 if(snd_maxchannelvolume.value > 0)
1348 if(mastervol * sfx->volume_peak > snd_maxchannelvolume.value)
1349 mastervol = snd_maxchannelvolume.value / sfx->volume_peak;
1351 // Con_DPrintf("%f\n", fvol);
1354 if(snd_maxchannelvolume.value > 0)
1356 // clamp HERE to keep relative volumes of the channels correct
1357 mastervol = min(mastervol, snd_maxchannelvolume.value);
1360 mastervol = max(0.0f, mastervol);
1362 ch->mixspeed = mixspeed;
1364 // anything coming from the view entity will always be full volume
1365 // LadyHavoc: make sounds with ATTN_NONE have no spatialization
1366 if (ch->entnum == cl.viewentity || ch->entnum == CL_VM_GetViewEntity() || ch->distfade == 0)
1368 ch->prologic_invert = 1;
1369 if (snd_spatialization_prologic.integer != 0)
1371 ch->volume[0] = mastervol * snd_speakerlayout.listeners[0].ambientvolume * sqrt(0.5);
1372 ch->volume[1] = mastervol * snd_speakerlayout.listeners[1].ambientvolume * sqrt(0.5);
1373 for (i = 2;i < SND_LISTENERS;i++)
1378 for (i = 0;i < SND_LISTENERS;i++)
1379 ch->volume[i] = mastervol * snd_speakerlayout.listeners[i].ambientvolume;
1384 // calculate stereo seperation and distance attenuation
1385 VectorSubtract(listener_origin, ch->origin, source_vec);
1386 dist = VectorLength(source_vec);
1387 f = dist * ch->distfade;
1390 ((snd_attenuation_exponent.value == 0) ? 1.0 : pow(1.0 - min(1.0, f), (double)snd_attenuation_exponent.value))
1392 ((snd_attenuation_decibel.value == 0) ? 1.0 : pow(0.1, 0.1 * snd_attenuation_decibel.value * f));
1394 intensity = mastervol * f;
1397 qboolean occluded = false;
1398 if (snd_spatialization_occlusion.integer)
1400 if(snd_spatialization_occlusion.integer & 1)
1401 if(listener_pvs && cl.worldmodel)
1403 int cluster = cl.worldmodel->brush.PointInLeaf(cl.worldmodel, ch->origin)->clusterindex;
1404 if(cluster >= 0 && cluster < 8 * listener_pvsbytes && !CHECKPVSBIT(listener_pvs, cluster))
1408 if(snd_spatialization_occlusion.integer & 2)
1410 if(cl.worldmodel && cl.worldmodel->brush.TraceLineOfSight && !cl.worldmodel->brush.TraceLineOfSight(cl.worldmodel, listener_origin, ch->origin, ch->origin, ch->origin))
1416 ch->prologic_invert = 1;
1417 if (snd_spatialization_prologic.integer != 0)
1420 angle_factor = 0.5f;
1423 Matrix4x4_Transform(&listener_basematrix, ch->origin, source_vec);
1424 VectorNormalize(source_vec);
1426 switch(spatialmethod)
1430 f = spatialmin + spatialdiff * (spatialfactor < 0); // avoid log(0), but do the right thing
1432 f = spatialmin + spatialdiff * bound(0, (log(dist) - spatialoffset) * spatialfactor, 1);
1433 VectorScale(source_vec, f, source_vec);
1436 f = (pow(dist, spatialpower) - spatialoffset) * spatialfactor;
1437 f = spatialmin + spatialdiff * bound(0, f, 1);
1438 VectorScale(source_vec, f, source_vec);
1440 case SPATIAL_THRESH:
1441 f = spatialmin + spatialdiff * (dist < spatialoffset);
1442 VectorScale(source_vec, f, source_vec);
1449 // the z axis needs to be removed and normalized because otherwise the volume would get lower as the sound source goes higher or lower then normal
1451 VectorNormalize(source_vec);
1452 angle_side = acos(source_vec[0]) / M_PI * 180; // angle between 0 and 180 degrees
1453 angle_front = asin(source_vec[1]) / M_PI * 180; // angle between -90 and 90 degrees
1454 if (angle_side > snd_spatialization_prologic_frontangle.value)
1456 ch->prologic_invert = -1; // this will cause the right channel to do a 180 degrees phase shift (turning the sound wave upside down),
1457 // but the best would be 90 degrees phase shift left and a -90 degrees phase shift right.
1458 angle_factor = (angle_side - snd_spatialization_prologic_frontangle.value) / (360 - 2 * snd_spatialization_prologic_frontangle.value);
1459 // angle_factor is between 0 and 1 and represents the angle range from the front left, to all the surround speakers (amount may vary,
1460 // 1 in prologic I 2 in prologic II and 3 or 4 in prologic IIx) to the front right speaker.
1461 if (angle_front > 0)
1462 angle_factor = 1 - angle_factor;
1465 angle_factor = angle_front / snd_spatialization_prologic_frontangle.value / 2.0 + 0.5;
1466 //angle_factor is between 0 and 1 and represents the angle range from the front left to the center to the front right speaker
1469 ch->volume[0] = intensity * sqrt(angle_factor);
1470 ch->volume[1] = intensity * sqrt(1 - angle_factor);
1471 for (i = 2;i < SND_LISTENERS;i++)
1476 for (i = 0;i < SND_LISTENERS;i++)
1478 Matrix4x4_Transform(&listener_matrix[i], ch->origin, source_vec);
1479 VectorNormalize(source_vec);
1481 switch(spatialmethod)
1485 f = spatialmin + spatialdiff * (spatialfactor < 0); // avoid log(0), but do the right thing
1487 f = spatialmin + spatialdiff * bound(0, (log(dist) - spatialoffset) * spatialfactor, 1);
1488 VectorScale(source_vec, f, source_vec);
1491 f = (pow(dist, spatialpower) - spatialoffset) * spatialfactor;
1492 f = spatialmin + spatialdiff * bound(0, f, 1);
1493 VectorScale(source_vec, f, source_vec);
1495 case SPATIAL_THRESH:
1496 f = spatialmin + spatialdiff * (dist < spatialoffset);
1497 VectorScale(source_vec, f, source_vec);
1504 ch->volume[i] = intensity * max(0, source_vec[0] * snd_speakerlayout.listeners[i].dotscale + snd_speakerlayout.listeners[i].dotbias);
1509 for (i = 0;i < SND_LISTENERS;i++)
1513 static void SND_Spatialize(channel_t *ch, qboolean isstatic)
1515 sfx_t *sfx = ch->sfx;
1516 SND_Spatialize_WithSfx(ch, isstatic, sfx);
1520 // =======================================================================
1521 // Start a sound effect
1522 // =======================================================================
1524 static void S_PlaySfxOnChannel (sfx_t *sfx, channel_t *target_chan, unsigned int flags, vec3_t origin, float fvol, float attenuation, qboolean isstatic, int entnum, int entchannel, int startpos, float fspeed)
1528 Con_Printf("S_PlaySfxOnChannel called with NULL??\n");
1532 if ((sfx->loopstart < sfx->total_length) || (flags & CHANNELFLAG_FORCELOOP))
1534 if(!snd_startloopingsounds.integer)
1539 if(!snd_startnonloopingsounds.integer)
1543 // Initialize the channel
1544 // a crash was reported on an in-use channel, so check here...
1545 if (target_chan->sfx)
1547 int channelindex = (int)(target_chan - channels);
1548 Con_Printf("S_PlaySfxOnChannel(%s): channel %i already in use?? Clearing.\n", sfx->name, channelindex);
1549 S_StopChannel (channelindex, true, false);
1551 // We MUST set sfx LAST because otherwise we could crash a threaded mixer
1552 // (otherwise we'd have to call SndSys_LockRenderBuffer here)
1553 memset (target_chan, 0, sizeof (*target_chan));
1554 VectorCopy (origin, target_chan->origin);
1555 target_chan->flags = flags;
1556 target_chan->position = startpos; // start of the sound
1557 target_chan->entnum = entnum;
1558 target_chan->entchannel = entchannel;
1560 // If it's a static sound
1563 if (sfx->loopstart >= sfx->total_length && (cls.protocol == PROTOCOL_QUAKE || cls.protocol == PROTOCOL_QUAKEWORLD))
1564 Con_DPrintf("Quake compatibility warning: Static sound \"%s\" is not looped\n", sfx->name);
1565 target_chan->distfade = attenuation / (64.0f * snd_soundradius.value);
1568 target_chan->distfade = attenuation / snd_soundradius.value;
1570 // set the listener volumes
1571 S_SetChannelVolume(target_chan - channels, fvol);
1572 S_SetChannelSpeed(target_chan - channels, fspeed);
1573 SND_Spatialize_WithSfx (target_chan, isstatic, sfx);
1575 // finally, set the sfx pointer, so the channel becomes valid for playback
1576 // and will be noticed by the mixer
1577 target_chan->sfx = sfx;
1581 int S_StartSound_StartPosition_Flags (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation, float startposition, int flags, float fspeed)
1583 channel_t *target_chan, *check, *ch;
1584 int ch_idx, startpos, i;
1586 if (snd_renderbuffer == NULL || sfx == NULL || nosound.integer)
1589 if(sfx == &changevolume_sfx)
1591 if (!IS_CHAN_SINGLE(entchannel))
1593 for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++)
1595 ch = &channels[ch_idx];
1596 if (ch->entnum == entnum && ch->entchannel == entchannel)
1598 S_SetChannelVolume(ch_idx, fvol);
1599 S_SetChannelSpeed(ch_idx, fspeed);
1600 for(i = 1; i > 0 && (i <= flags || i <= (int) channels[ch_idx].flags); i <<= 1)
1601 if((flags ^ channels[ch_idx].flags) & i)
1602 S_SetChannelFlag(ch_idx, i, (flags & i) != 0);
1603 ch->distfade = attenuation / snd_soundradius.value;
1604 SND_Spatialize(ch, false);
1611 if (sfx->fetcher == NULL)
1614 // Pick a channel to play on
1615 target_chan = SND_PickChannel(entnum, entchannel);
1619 // if an identical sound has also been started this frame, offset the pos
1620 // a bit to keep it from just making the first one louder
1621 check = &channels[NUM_AMBIENTS];
1622 startpos = (int)(startposition * sfx->format.speed);
1625 for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++, check++)
1627 if (check == target_chan)
1629 if (check->sfx == sfx && check->position == 0 && check->basespeed == fspeed)
1631 // calculate max offset
1632 float maxtime = snd_identicalsoundrandomization_time.value;
1633 float maxtics = snd_identicalsoundrandomization_tics.value;
1634 float maxticsdelta = ((cls.state == ca_connected) ? (maxtics * (cl.mtime[0] - cl.mtime[1])) : 0);
1636 if(maxticsdelta == 0 || fabs(maxticsdelta) > fabs(maxtime))
1639 maxdelta = fabs(maxticsdelta) * ((maxtime > 0) ? 1 : -1);
1641 // use negative pos offset to delay this sound effect
1642 startpos = lhrandom(0, maxdelta * sfx->format.speed);
1648 S_PlaySfxOnChannel (sfx, target_chan, flags, origin, fvol, attenuation, false, entnum, entchannel, startpos, fspeed);
1650 return (target_chan - channels);
1653 int S_StartSound (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
1655 return S_StartSound_StartPosition_Flags(entnum, entchannel, sfx, origin, fvol, attenuation, 0, CHANNELFLAG_NONE, 1.0f);
1658 void S_StopChannel (unsigned int channel_ind, qboolean lockmutex, qboolean freesfx)
1663 if (channel_ind >= total_channels)
1666 // we have to lock an audio mutex to prevent crashes if an audio mixer
1667 // thread is currently mixing this channel
1668 // the SndSys_LockRenderBuffer function uses such a mutex in
1669 // threaded sound backends
1670 if (lockmutex && !simsound)
1671 SndSys_LockRenderBuffer();
1673 ch = &channels[channel_ind];
1677 if (sfx->fetcher != NULL && sfx->fetcher->stopchannel != NULL)
1678 sfx->fetcher->stopchannel(ch);
1679 ch->fetcher_data = NULL;
1682 S_FreeSfx(sfx, true);
1684 if (lockmutex && !simsound)
1685 SndSys_UnlockRenderBuffer();
1689 qboolean S_SetChannelFlag (unsigned int ch_ind, unsigned int flag, qboolean value)
1691 if (ch_ind >= total_channels)
1694 if (flag != CHANNELFLAG_FORCELOOP &&
1695 flag != CHANNELFLAG_PAUSED &&
1696 flag != CHANNELFLAG_FULLVOLUME &&
1697 flag != CHANNELFLAG_LOCALSOUND)
1701 channels[ch_ind].flags |= flag;
1703 channels[ch_ind].flags &= ~flag;
1708 void S_StopSound(int entnum, int entchannel)
1712 for (i = 0; i < MAX_DYNAMIC_CHANNELS; i++)
1713 if (channels[i].entnum == entnum && channels[i].entchannel == entchannel)
1715 S_StopChannel (i, true, false);
1720 void S_StopAllSounds (void)
1724 // TOCHECK: is this test necessary?
1725 if (snd_renderbuffer == NULL)
1728 // stop CD audio because it may be using a faketrack
1731 if (simsound || SndSys_LockRenderBuffer ())
1736 for (i = 0; i < total_channels; i++)
1737 if (channels[i].sfx)
1738 S_StopChannel (i, false, false);
1740 total_channels = MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS; // no statics
1741 memset(channels, 0, MAX_CHANNELS * sizeof(channel_t));
1743 // Mute the contents of the submittion buffer
1744 clear = (snd_renderbuffer->format.width == 1) ? 0x80 : 0;
1745 memsize = snd_renderbuffer->maxframes * snd_renderbuffer->format.width * snd_renderbuffer->format.channels;
1746 memset(snd_renderbuffer->ring, clear, memsize);
1749 SndSys_UnlockRenderBuffer ();
1753 void S_PauseGameSounds (qboolean toggle)
1757 for (i = 0; i < total_channels; i++)
1762 if (ch->sfx != NULL && ! (ch->flags & CHANNELFLAG_LOCALSOUND))
1763 S_SetChannelFlag (i, CHANNELFLAG_PAUSED, toggle);
1767 void S_SetChannelVolume(unsigned int ch_ind, float fvol)
1769 channels[ch_ind].basevolume = fvol;
1772 void S_SetChannelSpeed(unsigned int ch_ind, float fspeed)
1774 channels[ch_ind].basespeed = fspeed;
1777 float S_GetChannelPosition (unsigned int ch_ind)
1779 // note: this is NOT accurate yet
1781 channel_t *ch = &channels[ch_ind];
1782 sfx_t *sfx = ch->sfx;
1786 s = ch->position / sfx->format.speed;
1788 if(!snd_usethreadedmixing)
1789 s += _snd_mixahead.value;
1794 float S_GetEntChannelPosition(int entnum, int entchannel)
1799 for (i = 0; i < total_channels; i++)
1802 if (ch->entnum == entnum && ch->entchannel == entchannel)
1803 return S_GetChannelPosition(i);
1805 return -1; // no playing sound in this channel
1813 void S_StaticSound (sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
1815 channel_t *target_chan;
1817 if (snd_renderbuffer == NULL || sfx == NULL || nosound.integer)
1821 Con_Printf ("S_StaticSound: \"%s\" hasn't been precached\n", sfx->name);
1825 if (total_channels == MAX_CHANNELS)
1827 Con_Print("S_StaticSound: total_channels == MAX_CHANNELS\n");
1831 target_chan = &channels[total_channels++];
1832 S_PlaySfxOnChannel (sfx, target_chan, CHANNELFLAG_FORCELOOP, origin, fvol, attenuation, true, 0, 0, 0, 1.0f);
1838 S_UpdateAmbientSounds
1841 static void S_UpdateAmbientSounds (void)
1845 float fade = (float)max(0.0, cl.time - cl.oldtime) * ambient_fade.value / 256.0f;
1846 int ambient_channel;
1848 unsigned char ambientlevels[NUM_AMBIENTS];
1851 memset(ambientlevels, 0, sizeof(ambientlevels));
1852 if (cl.worldmodel && cl.worldmodel->brush.AmbientSoundLevelsForPoint)
1853 cl.worldmodel->brush.AmbientSoundLevelsForPoint(cl.worldmodel, listener_origin, ambientlevels, sizeof(ambientlevels));
1855 // Calc ambient sound levels
1856 for (ambient_channel = 0 ; ambient_channel< NUM_AMBIENTS ; ambient_channel++)
1858 chan = &channels[ambient_channel];
1859 sfx = chan->sfx; // fetch the volatile variable
1860 if (sfx == NULL || sfx->fetcher == NULL)
1863 i = ambientlevels[ambient_channel];
1866 vol = i * (1.0f / 256.0f);
1868 // Don't adjust volume too fast
1869 if (chan->basevolume < vol)
1871 chan->basevolume += fade;
1872 if (chan->basevolume > vol)
1873 chan->basevolume = vol;
1875 else if (chan->basevolume > vol)
1877 chan->basevolume -= fade;
1878 if (chan->basevolume < vol)
1879 chan->basevolume = vol;
1882 if (snd_spatialization_prologic.integer != 0)
1884 chan->volume[0] = chan->basevolume * ambient_level.value * volume.value * mastervolume.value * snd_speakerlayout.listeners[0].ambientvolume * sqrt(0.5);
1885 chan->volume[1] = chan->basevolume * ambient_level.value * volume.value * mastervolume.value * snd_speakerlayout.listeners[1].ambientvolume * sqrt(0.5);
1886 for (i = 2;i < SND_LISTENERS;i++)
1887 chan->volume[i] = 0.0f;
1891 for (i = 0;i < SND_LISTENERS;i++)
1892 chan->volume[i] = chan->basevolume * ambient_level.value * volume.value * mastervolume.value * snd_speakerlayout.listeners[i].ambientvolume;
1897 static void S_PaintAndSubmit (void)
1899 unsigned int newsoundtime, paintedtime, endtime, maxtime, usedframes;
1900 int usesoundtimehack;
1901 static int soundtimehack = -1;
1902 static int oldsoundtime = 0;
1904 if (snd_renderbuffer == NULL || nosound.integer)
1907 // Update sound time
1908 snd_usethreadedmixing = false;
1909 usesoundtimehack = true;
1910 if (cls.timedemo) // SUPER NASTY HACK to mix non-realtime sound for more reliable benchmarking
1912 usesoundtimehack = 1;
1913 newsoundtime = (unsigned int)((double)cl.mtime[0] * (double)snd_renderbuffer->format.speed);
1915 else if (cls.capturevideo.soundrate && !cls.capturevideo.realtime) // SUPER NASTY HACK to record non-realtime sound
1917 usesoundtimehack = 2;
1918 newsoundtime = (unsigned int)((double)cls.capturevideo.frame * (double)snd_renderbuffer->format.speed / (double)cls.capturevideo.framerate);
1922 usesoundtimehack = 3;
1923 newsoundtime = (unsigned int)((realtime - snd_starttime) * (double)snd_renderbuffer->format.speed);
1927 snd_usethreadedmixing = snd_threaded && !cls.capturevideo.soundrate;
1928 usesoundtimehack = 0;
1929 newsoundtime = SndSys_GetSoundTime();
1931 // if the soundtimehack state changes we need to reset the soundtime
1932 if (soundtimehack != usesoundtimehack)
1934 snd_renderbuffer->startframe = snd_renderbuffer->endframe = soundtime = newsoundtime;
1936 // Mute the contents of the submission buffer
1937 if (simsound || SndSys_LockRenderBuffer ())
1942 clear = (snd_renderbuffer->format.width == 1) ? 0x80 : 0;
1943 memsize = snd_renderbuffer->maxframes * snd_renderbuffer->format.width * snd_renderbuffer->format.channels;
1944 memset(snd_renderbuffer->ring, clear, memsize);
1947 SndSys_UnlockRenderBuffer ();
1950 soundtimehack = usesoundtimehack;
1952 if (!soundtimehack && snd_blocked > 0)
1955 if (snd_usethreadedmixing)
1956 return; // the audio thread will mix its own data
1958 newsoundtime += extrasoundtime;
1959 if (newsoundtime < soundtime)
1961 if ((cls.capturevideo.soundrate != 0) != recording_sound)
1963 unsigned int additionaltime;
1965 // add some time to extrasoundtime make newsoundtime higher
1967 // The extra time must be a multiple of the render buffer size
1968 // to avoid modifying the current position in the buffer,
1969 // some modules write directly to a shared (DMA) buffer
1970 additionaltime = (soundtime - newsoundtime) + snd_renderbuffer->maxframes - 1;
1971 additionaltime -= additionaltime % snd_renderbuffer->maxframes;
1973 extrasoundtime += additionaltime;
1974 newsoundtime += additionaltime;
1975 Con_DPrintf("S_PaintAndSubmit: new extra sound time = %u\n",
1978 else if (!soundtimehack)
1979 Con_Printf("S_PaintAndSubmit: WARNING: newsoundtime < soundtime (%u < %u)\n",
1980 newsoundtime, soundtime);
1982 soundtime = newsoundtime;
1983 recording_sound = (cls.capturevideo.soundrate != 0);
1985 // Lock submitbuffer
1986 if (!simsound && !SndSys_LockRenderBuffer())
1988 // If the lock failed, stop here
1989 Con_DPrint(">> S_PaintAndSubmit: SndSys_LockRenderBuffer() failed\n");
1993 // Check to make sure that we haven't overshot
1994 paintedtime = snd_renderbuffer->endframe;
1995 if (paintedtime < soundtime)
1996 paintedtime = soundtime;
1998 // mix ahead of current position
2000 endtime = soundtime + (unsigned int)(_snd_mixahead.value * (float)snd_renderbuffer->format.speed);
2002 endtime = soundtime + (unsigned int)(max(_snd_mixahead.value * (float)snd_renderbuffer->format.speed, min(3 * (soundtime - oldsoundtime), 0.3 * (float)snd_renderbuffer->format.speed)));
2003 usedframes = snd_renderbuffer->endframe - snd_renderbuffer->startframe;
2004 maxtime = paintedtime + snd_renderbuffer->maxframes - usedframes;
2005 endtime = min(endtime, maxtime);
2007 while (paintedtime < endtime)
2009 unsigned int startoffset;
2010 unsigned int nbframes;
2012 // see how much we can fit in the paint buffer
2013 nbframes = endtime - paintedtime;
2014 // limit to the end of the ring buffer (in case of wrapping)
2015 startoffset = paintedtime % snd_renderbuffer->maxframes;
2016 nbframes = min(nbframes, snd_renderbuffer->maxframes - startoffset);
2018 // mix into the buffer
2019 S_MixToBuffer(&snd_renderbuffer->ring[startoffset * snd_renderbuffer->format.width * snd_renderbuffer->format.channels], nbframes);
2021 paintedtime += nbframes;
2022 snd_renderbuffer->endframe = paintedtime;
2025 SndSys_UnlockRenderBuffer();
2027 // Remove outdated samples from the ring buffer, if any
2028 if (snd_renderbuffer->startframe < soundtime)
2029 snd_renderbuffer->startframe = soundtime;
2032 snd_renderbuffer->startframe = snd_renderbuffer->endframe;
2036 oldsoundtime = soundtime;
2038 cls.soundstats.latency_milliseconds = (snd_renderbuffer->endframe - snd_renderbuffer->startframe) * 1000 / snd_renderbuffer->format.speed;
2039 R_TimeReport("audiomix");
2046 Called once each time through the main loop
2049 void S_Update(const matrix4x4_t *listenermatrix)
2051 unsigned int i, j, k;
2052 channel_t *ch, *combine;
2053 matrix4x4_t rotatematrix;
2055 if (snd_renderbuffer == NULL || nosound.integer)
2059 double mindist_trans, maxdist_trans;
2061 spatialmin = snd_spatialization_min.value;
2062 spatialdiff = snd_spatialization_max.value - spatialmin;
2064 if(snd_spatialization_control.value)
2066 spatialpower = snd_spatialization_power.value;
2068 if(spatialpower == 0)
2070 spatialmethod = SPATIAL_LOG;
2071 mindist_trans = log(max(1, snd_spatialization_min_radius.value));
2072 maxdist_trans = log(max(1, snd_spatialization_max_radius.value));
2076 spatialmethod = SPATIAL_POW;
2077 mindist_trans = pow(snd_spatialization_min_radius.value, spatialpower);
2078 maxdist_trans = pow(snd_spatialization_max_radius.value, spatialpower);
2081 if(mindist_trans - maxdist_trans == 0)
2083 spatialmethod = SPATIAL_THRESH;
2084 mindist_trans = snd_spatialization_min_radius.value;
2088 spatialoffset = mindist_trans;
2089 spatialfactor = 1 / (maxdist_trans - mindist_trans);
2093 spatialmethod = SPATIAL_NONE;
2097 // If snd_swapstereo or snd_channellayout has changed, recompute the channel layout
2098 if (current_swapstereo != boolxor(snd_swapstereo.integer, v_flipped.integer) ||
2099 current_channellayout != snd_channellayout.integer)
2100 S_SetChannelLayout();
2102 Matrix4x4_Invert_Simple(&listener_basematrix, listenermatrix);
2103 Matrix4x4_OriginFromMatrix(listenermatrix, listener_origin);
2104 if (cl.worldmodel && cl.worldmodel->brush.FatPVS && cl.worldmodel->brush.num_pvsclusterbytes && cl.worldmodel->brush.PointInLeaf)
2106 if(cl.worldmodel->brush.num_pvsclusterbytes != listener_pvsbytes)
2109 Mem_Free(listener_pvs);
2110 listener_pvsbytes = cl.worldmodel->brush.num_pvsclusterbytes;
2111 listener_pvs = (unsigned char *) Mem_Alloc(snd_mempool, listener_pvsbytes);
2113 cl.worldmodel->brush.FatPVS(cl.worldmodel, listener_origin, 2, listener_pvs, listener_pvsbytes, 0);
2119 Mem_Free(listener_pvs);
2120 listener_pvs = NULL;
2122 listener_pvsbytes = 0;
2125 // calculate the current matrices
2126 for (j = 0;j < SND_LISTENERS;j++)
2128 Matrix4x4_CreateFromQuakeEntity(&rotatematrix, 0, 0, 0, 0, -snd_speakerlayout.listeners[j].yawangle, 0, 1);
2129 Matrix4x4_Concat(&listener_matrix[j], &rotatematrix, &listener_basematrix);
2130 // I think this should now do this:
2131 // 1. create a rotation matrix for rotating by e.g. -90 degrees CCW
2132 // (note: the matrix will rotate the OBJECT, not the VIEWER, so its
2133 // angle has to be taken negative)
2134 // 2. create a transform which first rotates and moves its argument
2135 // into the player's view coordinates (using basematrix which is
2136 // an inverted "absolute" listener matrix), then applies the
2137 // rotation matrix for the ear
2138 // Isn't Matrix4x4_CreateFromQuakeEntity a bit misleading because this
2139 // does not actually refer to an entity?
2142 // update general area ambient sound sources
2143 S_UpdateAmbientSounds ();
2146 R_TimeReport("audioprep");
2148 // update spatialization for static and dynamic sounds
2149 cls.soundstats.totalsounds = 0;
2150 cls.soundstats.mixedsounds = 0;
2151 ch = channels+NUM_AMBIENTS;
2152 for (i=NUM_AMBIENTS ; i<total_channels; i++, ch++)
2156 cls.soundstats.totalsounds++;
2158 // respatialize channel
2159 SND_Spatialize(ch, i >= MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS);
2161 // try to combine static sounds with a previous channel of the same
2162 // sound effect so we don't mix five torches every frame
2163 if (i > MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS)
2165 // no need to merge silent channels
2166 for (j = 0;j < SND_LISTENERS;j++)
2169 if (j == SND_LISTENERS)
2171 // if the last combine chosen isn't suitable, find a new one
2172 if (!(combine && combine != ch && combine->sfx == ch->sfx))
2176 for (j = MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS;j < i;j++)
2178 if (channels[j].sfx == ch->sfx)
2180 combine = channels + j;
2185 if (combine && combine != ch && combine->sfx == ch->sfx)
2187 for (j = 0;j < SND_LISTENERS;j++)
2189 combine->volume[j] += ch->volume[j];
2194 for (k = 0;k < SND_LISTENERS;k++)
2197 if (k < SND_LISTENERS)
2198 cls.soundstats.mixedsounds++;
2200 R_TimeReport("audiospatialize");
2202 sound_spatialized = true;
2205 if (snd_show.integer)
2206 Con_Printf("----(%u)----\n", cls.soundstats.mixedsounds);
2211 void S_ExtraUpdate (void)
2213 if (snd_noextraupdate.integer || !sound_spatialized)
2219 qboolean S_LocalSound (const char *sound)
2224 if (!snd_initialized.integer || nosound.integer)
2227 sfx = S_PrecacheSound (sound, true, false);
2230 Con_Printf("S_LocalSound: can't precache %s\n", sound);
2234 // menu sounds must not be freed on level change
2235 sfx->flags |= SFXFLAG_MENUSOUND;
2237 // fun fact: in Quake 1, this used -1 "replace any entity channel",
2238 // which we no longer support anyway
2239 // changed by Black in r4297 "Changed S_LocalSound to play multiple sounds at a time."
2240 ch_ind = S_StartSound (cl.viewentity, 0, sfx, vec3_origin, 1, 0);
2244 channels[ch_ind].flags |= CHANNELFLAG_LOCALSOUND;