]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - snd_main.c
DP_SND_SOUND7_WIP1
[xonotic/darkplaces.git] / snd_main.c
index 6e224f55a5fd0e33618e6b11d40b453ae3923100..e537d8388661b63d0c35345d6ff1568d9ffdff5b 100644 (file)
@@ -23,35 +23,22 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "snd_main.h"
 #include "snd_ogg.h"
+#include "snd_modplug.h"
+#include "csprogs.h"
+#include "cl_collision.h"
 
 
 #define SND_MIN_SPEED 8000
-#define SND_MAX_SPEED 48000
+#define SND_MAX_SPEED 96000
 #define SND_MIN_WIDTH 1
 #define SND_MAX_WIDTH 2
 #define SND_MIN_CHANNELS 1
 #define SND_MAX_CHANNELS 8
-
 #if SND_LISTENERS != 8
 #      error this data only supports up to 8 channel, update it!
 #endif
-typedef struct listener_s
-{
-       float yawangle;
-       float dotscale;
-       float dotbias;
-       float ambientvolume;
-}
-listener_t;
-typedef struct speakerlayout_s
-{
-       const char *name;
-       unsigned int channels;
-       listener_t listeners[SND_LISTENERS];
-}
-speakerlayout_t;
 
-static speakerlayout_t snd_speakerlayout;
+speakerlayout_t snd_speakerlayout;
 
 // Our speaker layouts are based on ALSA. They differ from those
 // Win32 and Mac OS X APIs use when there's more than 4 channels.
@@ -62,27 +49,27 @@ static const speakerlayout_t snd_speakerlayouts[] =
        {
                "surround71", 8,
                {
-                       {45, 0.2, 0.2, 0.5}, // front left
-                       {315, 0.2, 0.2, 0.5}, // front right
-                       {135, 0.2, 0.2, 0.5}, // rear left
-                       {225, 0.2, 0.2, 0.5}, // rear right
-                       {0, 0.2, 0.2, 0.5}, // front center
-                       {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)
-                       {90, 0.2, 0.2, 0.5}, // side left
-                       {180, 0.2, 0.2, 0.5}, // side right
+                       {0, 45, 0.2, 0.2, 0.5}, // front left
+                       {1, 315, 0.2, 0.2, 0.5}, // front right
+                       {2, 135, 0.2, 0.2, 0.5}, // rear left
+                       {3, 225, 0.2, 0.2, 0.5}, // rear right
+                       {4, 0, 0.2, 0.2, 0.5}, // front center
+                       {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)
+                       {6, 90, 0.2, 0.2, 0.5}, // side left
+                       {7, 180, 0.2, 0.2, 0.5}, // side right
                }
        },
        {
                "surround51", 6,
                {
-                       {45, 0.2, 0.2, 0.5}, // front left
-                       {315, 0.2, 0.2, 0.5}, // front right
-                       {135, 0.2, 0.2, 0.5}, // rear left
-                       {225, 0.2, 0.2, 0.5}, // rear right
-                       {0, 0.2, 0.2, 0.5}, // front center
-                       {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)
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
+                       {0, 45, 0.2, 0.2, 0.5}, // front left
+                       {1, 315, 0.2, 0.2, 0.5}, // front right
+                       {2, 135, 0.2, 0.2, 0.5}, // rear left
+                       {3, 225, 0.2, 0.2, 0.5}, // rear right
+                       {4, 0, 0.2, 0.2, 0.5}, // front center
+                       {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)
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
                }
        },
        {
@@ -90,14 +77,14 @@ static const speakerlayout_t snd_speakerlayouts[] =
                // channel of its own
                "surround40", 4,
                {
-                       {45, 0.3, 0.3, 0.8}, // front left
-                       {315, 0.3, 0.3, 0.8}, // front right
-                       {135, 0.3, 0.3, 0.8}, // rear left
-                       {225, 0.3, 0.3, 0.8}, // rear right
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
+                       {0, 45, 0.3, 0.3, 0.8}, // front left
+                       {1, 315, 0.3, 0.3, 0.8}, // front right
+                       {2, 135, 0.3, 0.3, 0.8}, // rear left
+                       {3, 225, 0.3, 0.3, 0.8}, // rear right
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
                }
        },
        {
@@ -105,27 +92,27 @@ static const speakerlayout_t snd_speakerlayouts[] =
                // channel of its own
                "stereo", 2,
                {
-                       {90, 0.5, 0.5, 1}, // side left
-                       {270, 0.5, 0.5, 1}, // side right
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
+                       {0, 90, 0.5, 0.5, 1}, // side left
+                       {1, 270, 0.5, 0.5, 1}, // side right
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
                }
        },
        {
                "mono", 1,
                {
-                       {0, 0, 1, 1}, // center
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
-                       {0, 0, 0, 0},
+                       {0, 0, 0, 1, 1}, // center
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
+                       {0, 0, 0, 0, 0},
                }
        }
 };
@@ -139,12 +126,17 @@ channel_t channels[MAX_CHANNELS];
 unsigned int total_channels;
 
 snd_ringbuffer_t *snd_renderbuffer = NULL;
-unsigned int soundtime = 0;
+static unsigned int soundtime = 0;
 static unsigned int oldpaintedtime = 0;
 static unsigned int extrasoundtime = 0;
 static double snd_starttime = 0.0;
+qboolean snd_threaded = false;
+qboolean snd_usethreadedmixing = false;
 
 vec3_t listener_origin;
+matrix4x4_t listener_basematrix;
+static unsigned char *listener_pvs = NULL;
+static int listener_pvsbytes = 0;
 matrix4x4_t listener_matrix[SND_LISTENERS];
 mempool_t *snd_mempool;
 
@@ -162,18 +154,74 @@ static int current_swapstereo = false;
 static int current_channellayout = SND_CHANNELLAYOUT_AUTO;
 static int current_channellayout_used = SND_CHANNELLAYOUT_AUTO;
 
+static float spatialpower, spatialmin, spatialdiff, spatialoffset, spatialfactor;
+typedef enum { SPATIAL_NONE, SPATIAL_LOG, SPATIAL_POW, SPATIAL_THRESH } spatialmethod_t;
+spatialmethod_t spatialmethod;
+
 // Cvars declared in sound.h (part of the sound API)
 cvar_t bgmvolume = {CVAR_SAVE, "bgmvolume", "1", "volume of background music (such as CD music or replacement files such as sound/cdtracks/track002.ogg)"};
+cvar_t mastervolume = {CVAR_SAVE, "mastervolume", "0.7", "master volume"};
 cvar_t volume = {CVAR_SAVE, "volume", "0.7", "volume of sound effects"};
 cvar_t snd_initialized = { CVAR_READONLY, "snd_initialized", "0", "indicates the sound subsystem is active"};
 cvar_t snd_staticvolume = {CVAR_SAVE, "snd_staticvolume", "1", "volume of ambient sound effects (such as swampy sounds at the start of e1m2)"};
-cvar_t snd_soundradius = {0, "snd_soundradius", "1000", "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)"};
+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)"};
+cvar_t snd_spatialization_min_radius = {CVAR_SAVE, "snd_spatialization_min_radius", "10000", "use minimum spatialization above to this radius"};
+cvar_t snd_spatialization_max_radius = {CVAR_SAVE, "snd_spatialization_max_radius", "100", "use maximum spatialization below this radius"};
+cvar_t snd_spatialization_min = {CVAR_SAVE, "snd_spatialization_min", "0.70", "minimum spatializazion of sounds"};
+cvar_t snd_spatialization_max = {CVAR_SAVE, "snd_spatialization_max", "0.95", "maximum spatialization of sounds"};
+cvar_t snd_spatialization_power = {CVAR_SAVE, "snd_spatialization_power", "0", "exponent of the spatialization falloff curve (0: logarithmic)"};
+cvar_t snd_spatialization_control = {CVAR_SAVE, "snd_spatialization_control", "0", "enable spatialization control (headphone friendly mode)"};
+cvar_t snd_spatialization_prologic = {CVAR_SAVE, "snd_spatialization_prologic", "0", "use dolby prologic (I, II or IIx) encoding (snd_channels must be 2)"};
+cvar_t snd_spatialization_prologic_frontangle = {CVAR_SAVE, "snd_spatialization_prologic_frontangle", "30", "the angle between the front speakers and the center speaker"};
+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"};
 
 // Cvars declared in snd_main.h (shared with other snd_*.c files)
-cvar_t _snd_mixahead = {CVAR_SAVE, "_snd_mixahead", "0.1", "how much sound to mix ahead of time"};
+cvar_t _snd_mixahead = {CVAR_SAVE, "_snd_mixahead", "0.15", "how much sound to mix ahead of time"};
 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)"};
 cvar_t snd_swapstereo = {CVAR_SAVE, "snd_swapstereo", "0", "swaps left/right speakers for old ISA soundblaster cards"};
+extern cvar_t v_flipped;
 cvar_t snd_channellayout = {0, "snd_channellayout", "0", "channel layout. Can be 0 (auto - snd_restart needed), 1 (standard layout), or 2 (ALSA layout)"};
+cvar_t snd_mutewhenidle = {CVAR_SAVE, "snd_mutewhenidle", "1", "whether to disable sound output when game window is inactive"};
+cvar_t snd_entchannel0volume = {CVAR_SAVE, "snd_entchannel0volume", "1", "volume multiplier of the auto-allocate entity channel of regular entities (DEPRECATED)"};
+cvar_t snd_entchannel1volume = {CVAR_SAVE, "snd_entchannel1volume", "1", "volume multiplier of the 1st entity channel of regular entities (DEPRECATED)"};
+cvar_t snd_entchannel2volume = {CVAR_SAVE, "snd_entchannel2volume", "1", "volume multiplier of the 2nd entity channel of regular entities (DEPRECATED)"};
+cvar_t snd_entchannel3volume = {CVAR_SAVE, "snd_entchannel3volume", "1", "volume multiplier of the 3rd entity channel of regular entities (DEPRECATED)"};
+cvar_t snd_entchannel4volume = {CVAR_SAVE, "snd_entchannel4volume", "1", "volume multiplier of the 4th entity channel of regular entities (DEPRECATED)"};
+cvar_t snd_entchannel5volume = {CVAR_SAVE, "snd_entchannel5volume", "1", "volume multiplier of the 5th entity channel of regular entities (DEPRECATED)"};
+cvar_t snd_entchannel6volume = {CVAR_SAVE, "snd_entchannel6volume", "1", "volume multiplier of the 6th entity channel of regular entities (DEPRECATED)"};
+cvar_t snd_entchannel7volume = {CVAR_SAVE, "snd_entchannel7volume", "1", "volume multiplier of the 7th entity channel of regular entities (DEPRECATED)"};
+cvar_t snd_playerchannel0volume = {CVAR_SAVE, "snd_playerchannel0volume", "1", "volume multiplier of the auto-allocate entity channel of player entities (DEPRECATED)"};
+cvar_t snd_playerchannel1volume = {CVAR_SAVE, "snd_playerchannel1volume", "1", "volume multiplier of the 1st entity channel of player entities (DEPRECATED)"};
+cvar_t snd_playerchannel2volume = {CVAR_SAVE, "snd_playerchannel2volume", "1", "volume multiplier of the 2nd entity channel of player entities (DEPRECATED)"};
+cvar_t snd_playerchannel3volume = {CVAR_SAVE, "snd_playerchannel3volume", "1", "volume multiplier of the 3rd entity channel of player entities (DEPRECATED)"};
+cvar_t snd_playerchannel4volume = {CVAR_SAVE, "snd_playerchannel4volume", "1", "volume multiplier of the 4th entity channel of player entities (DEPRECATED)"};
+cvar_t snd_playerchannel5volume = {CVAR_SAVE, "snd_playerchannel5volume", "1", "volume multiplier of the 5th entity channel of player entities (DEPRECATED)"};
+cvar_t snd_playerchannel6volume = {CVAR_SAVE, "snd_playerchannel6volume", "1", "volume multiplier of the 6th entity channel of player entities (DEPRECATED)"};
+cvar_t snd_playerchannel7volume = {CVAR_SAVE, "snd_playerchannel7volume", "1", "volume multiplier of the 7th entity channel of player entities (DEPRECATED)"};
+cvar_t snd_worldchannel0volume = {CVAR_SAVE, "snd_worldchannel0volume", "1", "volume multiplier of the auto-allocate entity channel of the world entity (DEPRECATED)"};
+cvar_t snd_worldchannel1volume = {CVAR_SAVE, "snd_worldchannel1volume", "1", "volume multiplier of the 1st entity channel of the world entity (DEPRECATED)"};
+cvar_t snd_worldchannel2volume = {CVAR_SAVE, "snd_worldchannel2volume", "1", "volume multiplier of the 2nd entity channel of the world entity (DEPRECATED)"};
+cvar_t snd_worldchannel3volume = {CVAR_SAVE, "snd_worldchannel3volume", "1", "volume multiplier of the 3rd entity channel of the world entity (DEPRECATED)"};
+cvar_t snd_worldchannel4volume = {CVAR_SAVE, "snd_worldchannel4volume", "1", "volume multiplier of the 4th entity channel of the world entity (DEPRECATED)"};
+cvar_t snd_worldchannel5volume = {CVAR_SAVE, "snd_worldchannel5volume", "1", "volume multiplier of the 5th entity channel of the world entity (DEPRECATED)"};
+cvar_t snd_worldchannel6volume = {CVAR_SAVE, "snd_worldchannel6volume", "1", "volume multiplier of the 6th entity channel of the world entity (DEPRECATED)"};
+cvar_t snd_worldchannel7volume = {CVAR_SAVE, "snd_worldchannel7volume", "1", "volume multiplier of the 7th entity channel of the world entity (DEPRECATED)"};
+cvar_t snd_csqcchannel0volume = {CVAR_SAVE, "snd_csqcchannel0volume", "1", "volume multiplier of the auto-allocate entity channel CSQC entities (DEPRECATED)"};
+cvar_t snd_csqcchannel1volume = {CVAR_SAVE, "snd_csqcchannel1volume", "1", "volume multiplier of the 1st entity channel of CSQC entities (DEPRECATED)"};
+cvar_t snd_csqcchannel2volume = {CVAR_SAVE, "snd_csqcchannel2volume", "1", "volume multiplier of the 2nd entity channel of CSQC entities (DEPRECATED)"};
+cvar_t snd_csqcchannel3volume = {CVAR_SAVE, "snd_csqcchannel3volume", "1", "volume multiplier of the 3rd entity channel of CSQC entities (DEPRECATED)"};
+cvar_t snd_csqcchannel4volume = {CVAR_SAVE, "snd_csqcchannel4volume", "1", "volume multiplier of the 4th entity channel of CSQC entities (DEPRECATED)"};
+cvar_t snd_csqcchannel5volume = {CVAR_SAVE, "snd_csqcchannel5volume", "1", "volume multiplier of the 5th entity channel of CSQC entities (DEPRECATED)"};
+cvar_t snd_csqcchannel6volume = {CVAR_SAVE, "snd_csqcchannel6volume", "1", "volume multiplier of the 6th entity channel of CSQC entities (DEPRECATED)"};
+cvar_t snd_csqcchannel7volume = {CVAR_SAVE, "snd_csqcchannel7volume", "1", "volume multiplier of the 7th entity channel of CSQC entities (DEPRECATED)"};
+cvar_t snd_channel0volume = {CVAR_SAVE, "snd_channel0volume", "1", "volume multiplier of the auto-allocate entity channel"};
+cvar_t snd_channel1volume = {CVAR_SAVE, "snd_channel1volume", "1", "volume multiplier of the 1st entity channel"};
+cvar_t snd_channel2volume = {CVAR_SAVE, "snd_channel2volume", "1", "volume multiplier of the 2nd entity channel"};
+cvar_t snd_channel3volume = {CVAR_SAVE, "snd_channel3volume", "1", "volume multiplier of the 3rd entity channel"};
+cvar_t snd_channel4volume = {CVAR_SAVE, "snd_channel4volume", "1", "volume multiplier of the 4th entity channel"};
+cvar_t snd_channel5volume = {CVAR_SAVE, "snd_channel5volume", "1", "volume multiplier of the 5th entity channel"};
+cvar_t snd_channel6volume = {CVAR_SAVE, "snd_channel6volume", "1", "volume multiplier of the 6th entity channel"};
+cvar_t snd_channel7volume = {CVAR_SAVE, "snd_channel7volume", "1", "volume multiplier of the 7th entity channel"};
 
 // Local cvars
 static cvar_t nosound = {0, "nosound", "0", "disables sound"};
@@ -187,7 +235,10 @@ static cvar_t snd_show = {0, "snd_show", "0", "shows some statistics about sound
 // (48KHz because a lot of onboard sound cards sucks at any other speed)
 static cvar_t snd_speed = {CVAR_SAVE, "snd_speed", "48000", "sound output frequency, in hertz"};
 static cvar_t snd_width = {CVAR_SAVE, "snd_width", "2", "sound output precision, in bytes (1 and 2 supported)"};
-static cvar_t snd_channels = {CVAR_SAVE, "snd_channels", "2", "number of channels for the sound ouput (2 for stereo; up to 8 supported for 3D sound)"};
+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)"};
+
+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"};
+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"};
 
 // Ambient sounds
 static sfx_t* ambient_sfxs [2] = { NULL, NULL };
@@ -222,13 +273,13 @@ static void S_Play_Common (float fvol, float attenuation)
                        i++;
                }
 
-               sfx = S_PrecacheSound (name, true, false);
+               sfx = S_PrecacheSound (name, true, true);
                if (sfx)
                {
                        ch_ind = S_StartSound (-1, 0, sfx, listener_origin, fvol, attenuation);
 
                        // Free the sfx if the file didn't exist
-                       if (ch_ind < 0)
+                       if (!sfx->fetcher)
                                S_FreeSfx (sfx, false);
                        else
                                channels[ch_ind].flags |= CHANNELFLAG_LOCALSOUND;
@@ -267,11 +318,10 @@ static void S_SoundList_f (void)
 
                        size = sfx->memsize;
                        format = sfx->fetcher->getfmt(sfx);
-                       Con_Printf ("%c%c%c%c(%2db, %6s) %8i : %s\n",
-                                               (sfx->loopstart >= 0) ? 'L' : ' ',
+                       Con_Printf ("%c%c%c(%2db, %6s) %8i : %s\n",
+                                               (sfx->loopstart < sfx->total_length) ? 'L' : ' ',
                                                (sfx->flags & SFXFLAG_STREAMED) ? 'S' : ' ',
-                                               (sfx->locks > 0) ? 'K' : ' ',
-                                               (sfx->flags & SFXFLAG_PERMANENTLOCK) ? 'P' : ' ',
+                                               (sfx->flags & SFXFLAG_MENUSOUND) ? 'P' : ' ',
                                                format->width * 8,
                                                (format->channels == 1) ? "mono" : "stereo",
                                                size,
@@ -306,6 +356,11 @@ int S_GetSoundRate(void)
        return snd_renderbuffer ? snd_renderbuffer->format.speed : 0;
 }
 
+int S_GetSoundChannels(void)
+{
+       return snd_renderbuffer ? snd_renderbuffer->format.channels : 0;
+}
+
 
 static qboolean S_ChooseCheaperFormat (snd_format_t* format, qboolean fixed_speed, qboolean fixed_width, qboolean fixed_channels)
 {
@@ -317,6 +372,7 @@ static qboolean S_ChooseCheaperFormat (snd_format_t* format, qboolean fixed_spee
                { 22050,                        2,                              2 },
                { 44100,                        2,                              2 },
                { 48000,                        2,                              6 },
+               { 96000,                        2,                              6 },
                { SND_MAX_SPEED,        SND_MAX_WIDTH,  SND_MAX_CHANNELS },
        };
        const unsigned int nb_thresholds = sizeof(thresholds) / sizeof(thresholds[0]);
@@ -400,7 +456,7 @@ static void S_SetChannelLayout (void)
        listeners = snd_speakerlayout.listeners;
 
        // Swap the left and right channels if snd_swapstereo is set
-       if (snd_swapstereo.integer)
+       if (boolxor(snd_swapstereo.integer, v_flipped.integer))
        {
                switch (snd_speakerlayout.channels)
                {
@@ -454,7 +510,7 @@ static void S_SetChannelLayout (void)
                                   (layout == SND_CHANNELLAYOUT_ALSA) ? "ALSA" : "standard");
        }
 
-       current_swapstereo = snd_swapstereo.integer;
+       current_swapstereo = boolxor(snd_swapstereo.integer, v_flipped.integer);
        current_channellayout = snd_channellayout.integer;
        current_channellayout_used = layout;
 }
@@ -465,7 +521,10 @@ void S_Startup (void)
        qboolean fixed_speed, fixed_width, fixed_channels;
        snd_format_t chosen_fmt;
        static snd_format_t prev_render_format = {0, 0, 0};
-       const char* env;
+       char* env;
+#if _MSC_VER >= 1400
+       size_t envlen;
+#endif
        int i;
 
        if (!snd_initialized.integer)
@@ -481,22 +540,43 @@ void S_Startup (void)
        chosen_fmt.channels = snd_channels.integer;
 
        // Check the environment variables to see if the player wants a particular sound format
+#if _MSC_VER >= 1400
+       _dupenv_s(&env, &envlen, "QUAKE_SOUND_CHANNELS");
+#else
        env = getenv("QUAKE_SOUND_CHANNELS");
+#endif
        if (env != NULL)
        {
                chosen_fmt.channels = atoi (env);
+#if _MSC_VER >= 1400
+               free(env);
+#endif
                fixed_channels = true;
        }
+#if _MSC_VER >= 1400
+       _dupenv_s(&env, &envlen, "QUAKE_SOUND_SPEED");
+#else
        env = getenv("QUAKE_SOUND_SPEED");
+#endif
        if (env != NULL)
        {
                chosen_fmt.speed = atoi (env);
+#if _MSC_VER >= 1400
+               free(env);
+#endif
                fixed_speed = true;
        }
+#if _MSC_VER >= 1400
+       _dupenv_s(&env, &envlen, "QUAKE_SOUND_SAMPLEBITS");
+#else
        env = getenv("QUAKE_SOUND_SAMPLEBITS");
+#endif
        if (env != NULL)
        {
                chosen_fmt.width = atoi (env) / 8;
+#if _MSC_VER >= 1400
+               free(env);
+#endif
                fixed_width = true;
        }
 
@@ -589,7 +669,7 @@ void S_Startup (void)
                accepted = false;
                do
                {
-                       Con_DPrintf("S_Startup: initializing sound output format: %dHz, %d bit, %d channels...\n",
+                       Con_Printf("S_Startup: initializing sound output format: %dHz, %d bit, %d channels...\n",
                                                chosen_fmt.speed, chosen_fmt.width * 8,
                                                chosen_fmt.channels);
 
@@ -598,7 +678,7 @@ void S_Startup (void)
 
                        if (!accepted)
                        {
-                               Con_DPrintf("S_Startup: sound output initialization FAILED\n");
+                               Con_Printf("S_Startup: sound output initialization FAILED\n");
 
                                // If the module is suggesting another one
                                if (suggest_fmt.speed != 0)
@@ -654,7 +734,7 @@ void S_Startup (void)
                // some modules write directly to a shared (DMA) buffer
                extrasoundtime = oldpaintedtime + snd_renderbuffer->maxframes - 1;
                extrasoundtime -= extrasoundtime % snd_renderbuffer->maxframes;
-               Con_DPrintf("S_Startup: extra sound time = %u\n", extrasoundtime);
+               Con_Printf("S_Startup: extra sound time = %u\n", extrasoundtime);
 
                soundtime = extrasoundtime;
        }
@@ -686,6 +766,14 @@ void S_Shutdown(void)
 
 void S_Restart_f(void)
 {
+       // NOTE: we can't free all sounds if we are running a map (this frees sfx_t that are still referenced by precaches)
+       // So, refuse to do this if we are connected.
+       if(cls.state == ca_connected)
+       {
+               Con_Printf("snd_restart would wreak havoc if you do that while connected!\n");
+               return;
+       }
+
        S_Shutdown();
        S_Startup();
 }
@@ -697,19 +785,77 @@ S_Init
 */
 void S_Init(void)
 {
-       Con_DPrint("\nSound Initialization\n");
-
        Cvar_RegisterVariable(&volume);
        Cvar_RegisterVariable(&bgmvolume);
+       Cvar_RegisterVariable(&mastervolume);
        Cvar_RegisterVariable(&snd_staticvolume);
+       Cvar_RegisterVariable(&snd_entchannel0volume);
+       Cvar_RegisterVariable(&snd_entchannel1volume);
+       Cvar_RegisterVariable(&snd_entchannel2volume);
+       Cvar_RegisterVariable(&snd_entchannel3volume);
+       Cvar_RegisterVariable(&snd_entchannel4volume);
+       Cvar_RegisterVariable(&snd_entchannel5volume);
+       Cvar_RegisterVariable(&snd_entchannel6volume);
+       Cvar_RegisterVariable(&snd_entchannel7volume);
+       Cvar_RegisterVariable(&snd_worldchannel0volume);
+       Cvar_RegisterVariable(&snd_worldchannel1volume);
+       Cvar_RegisterVariable(&snd_worldchannel2volume);
+       Cvar_RegisterVariable(&snd_worldchannel3volume);
+       Cvar_RegisterVariable(&snd_worldchannel4volume);
+       Cvar_RegisterVariable(&snd_worldchannel5volume);
+       Cvar_RegisterVariable(&snd_worldchannel6volume);
+       Cvar_RegisterVariable(&snd_worldchannel7volume);
+       Cvar_RegisterVariable(&snd_playerchannel0volume);
+       Cvar_RegisterVariable(&snd_playerchannel1volume);
+       Cvar_RegisterVariable(&snd_playerchannel2volume);
+       Cvar_RegisterVariable(&snd_playerchannel3volume);
+       Cvar_RegisterVariable(&snd_playerchannel4volume);
+       Cvar_RegisterVariable(&snd_playerchannel5volume);
+       Cvar_RegisterVariable(&snd_playerchannel6volume);
+       Cvar_RegisterVariable(&snd_playerchannel7volume);
+       Cvar_RegisterVariable(&snd_csqcchannel0volume);
+       Cvar_RegisterVariable(&snd_csqcchannel1volume);
+       Cvar_RegisterVariable(&snd_csqcchannel2volume);
+       Cvar_RegisterVariable(&snd_csqcchannel3volume);
+       Cvar_RegisterVariable(&snd_csqcchannel4volume);
+       Cvar_RegisterVariable(&snd_csqcchannel5volume);
+       Cvar_RegisterVariable(&snd_csqcchannel6volume);
+       Cvar_RegisterVariable(&snd_csqcchannel7volume);
+       Cvar_RegisterVariable(&snd_channel0volume);
+       Cvar_RegisterVariable(&snd_channel1volume);
+       Cvar_RegisterVariable(&snd_channel2volume);
+       Cvar_RegisterVariable(&snd_channel3volume);
+       Cvar_RegisterVariable(&snd_channel4volume);
+       Cvar_RegisterVariable(&snd_channel5volume);
+       Cvar_RegisterVariable(&snd_channel6volume);
+       Cvar_RegisterVariable(&snd_channel7volume);
+
+       Cvar_RegisterVariable(&snd_spatialization_min_radius);
+       Cvar_RegisterVariable(&snd_spatialization_max_radius);
+       Cvar_RegisterVariable(&snd_spatialization_min);
+       Cvar_RegisterVariable(&snd_spatialization_max);
+       Cvar_RegisterVariable(&snd_spatialization_power);
+       Cvar_RegisterVariable(&snd_spatialization_control);
+       Cvar_RegisterVariable(&snd_spatialization_occlusion);
+       Cvar_RegisterVariable(&snd_spatialization_prologic);
+       Cvar_RegisterVariable(&snd_spatialization_prologic_frontangle);
 
        Cvar_RegisterVariable(&snd_speed);
        Cvar_RegisterVariable(&snd_width);
        Cvar_RegisterVariable(&snd_channels);
+       Cvar_RegisterVariable(&snd_mutewhenidle);
+
+       Cvar_RegisterVariable(&snd_startloopingsounds);
+       Cvar_RegisterVariable(&snd_startnonloopingsounds);
 
 // COMMANDLINEOPTION: Sound: -nosound disables sound (including CD audio)
-       if (COM_CheckParm("-nosound") || COM_CheckParm("-safe"))
+       if (COM_CheckParm("-nosound"))
+       {
+               // dummy out Play and Play2 because mods stuffcmd that
+               Cmd_AddCommand("play", Host_NoOperation_f, "does nothing because -nosound was specified");
+               Cmd_AddCommand("play2", Host_NoOperation_f, "does nothing because -nosound was specified");
                return;
+       }
 
        snd_mempool = Mem_AllocPool("sound", 0, NULL);
 
@@ -724,7 +870,7 @@ void S_Init(void)
        Cmd_AddCommand("soundlist", S_SoundList_f, "list loaded sounds");
        Cmd_AddCommand("soundinfo", S_SoundInfo_f, "print sound system information (such as channels and speed)");
        Cmd_AddCommand("snd_restart", S_Restart_f, "restart sound system");
-       Cmd_AddCommand("snd_reload", S_Reload_f, "reload all sound files");
+       Cmd_AddCommand("snd_unloadallsounds", S_UnloadAllSounds_f, "unload all sound files");
 
        Cvar_RegisterVariable(&nosound);
        Cvar_RegisterVariable(&snd_precache);
@@ -747,6 +893,7 @@ void S_Init(void)
        memset(channels, 0, MAX_CHANNELS * sizeof(channel_t));
 
        OGG_OpenLibrary ();
+       ModPlug_OpenLibrary ();
 }
 
 
@@ -760,6 +907,7 @@ Shutdown and free all resources
 void S_Terminate (void)
 {
        S_Shutdown ();
+       ModPlug_CloseLibrary ();
        OGG_CloseLibrary ();
 
        // Free all SFXs
@@ -773,13 +921,21 @@ void S_Terminate (void)
 
 /*
 ==================
-S_Reload_f
+S_UnloadAllSounds_f
 ==================
 */
-void S_Reload_f (void)
+void S_UnloadAllSounds_f (void)
 {
        int i;
 
+       // NOTE: we can't free all sounds if we are running a map (this frees sfx_t that are still referenced by precaches)
+       // So, refuse to do this if we are connected.
+       if(cls.state == ca_connected)
+       {
+               Con_Printf("snd_unloadallsounds would wreak havoc if you do that while connected!\n");
+               return;
+       }
+
        // stop any active sounds
        S_StopAllSounds();
 
@@ -798,6 +954,7 @@ void S_Reload_f (void)
 S_FindName
 ==================
 */
+sfx_t changevolume_sfx = {""};
 sfx_t *S_FindName (const char *name)
 {
        sfx_t *sfx;
@@ -805,6 +962,9 @@ sfx_t *S_FindName (const char *name)
        if (!snd_initialized.integer)
                return NULL;
 
+       if(!strcmp(name, changevolume_sfx.name))
+               return &changevolume_sfx;
+
        if (strlen (name) >= sizeof (sfx->name))
        {
                Con_Printf ("S_FindName: sound name too long (%s)\n", name);
@@ -838,11 +998,12 @@ void S_FreeSfx (sfx_t *sfx, qboolean force)
 {
        unsigned int i;
 
-       // Never free a locked sfx unless forced
-       if (!force && (sfx->locks > 0 || (sfx->flags & SFXFLAG_PERMANENTLOCK)))
+       // Do not free a precached sound during purge
+       if (!force && (sfx->flags & (SFXFLAG_LEVELSOUND | SFXFLAG_MENUSOUND)))
                return;
 
-       Con_DPrintf ("S_FreeSfx: freeing %s\n", sfx->name);
+       if (developer_loading.integer)
+               Con_Printf ("unloading sound %s\n", sfx->name);
 
        // Remove it from the list of known sfx
        if (sfx == known_sfx)
@@ -866,69 +1027,68 @@ void S_FreeSfx (sfx_t *sfx, qboolean force)
 
        // Stop all channels using this sfx
        for (i = 0; i < total_channels; i++)
+       {
                if (channels[i].sfx == sfx)
-                       S_StopChannel (i);
+               {
+                       Con_Printf("S_FreeSfx: stopping channel %i for sfx \"%s\"\n", i, sfx->name);
+                       S_StopChannel (i, true, false);
+               }
+       }
 
        // Free it
        if (sfx->fetcher != NULL && sfx->fetcher->free != NULL)
-               sfx->fetcher->free (sfx);
+               sfx->fetcher->free (sfx->fetcher_data);
        Mem_Free (sfx);
 }
 
 
 /*
 ==================
-S_ServerSounds
+S_ClearUsed
 ==================
 */
-void S_ServerSounds (char serversound [][MAX_QPATH], unsigned int numsounds)
+void S_ClearUsed (void)
 {
        sfx_t *sfx;
-       sfx_t *sfxnext;
+//     sfx_t *sfxnext;
        unsigned int i;
 
        // Start the ambient sounds and make them loop
        for (i = 0; i < sizeof (ambient_sfxs) / sizeof (ambient_sfxs[0]); i++)
        {
-               // Precache it if it's not done (request a lock to make sure it will never be freed)
+               // Precache it if it's not done (and pass false for levelsound because these are permanent)
                if (ambient_sfxs[i] == NULL)
-                       ambient_sfxs[i] = S_PrecacheSound (ambient_names[i], false, true);
+                       ambient_sfxs[i] = S_PrecacheSound (ambient_names[i], false, false);
                if (ambient_sfxs[i] != NULL)
                {
-                       // Add a lock to the SFX while playing. It will be
-                       // removed by S_StopAllSounds at the end of the level
-                       S_LockSfx (ambient_sfxs[i]);
-
                        channels[i].sfx = ambient_sfxs[i];
+                       channels[i].sfx->flags |= SFXFLAG_MENUSOUND;
                        channels[i].flags |= CHANNELFLAG_FORCELOOP;
                        channels[i].master_vol = 0;
                }
        }
 
-       // Remove 1 lock from all sfx with the SFXFLAG_SERVERSOUND flag, and remove the flag
+       // Clear SFXFLAG_LEVELSOUND flag so that sounds not precached this level will be purged
        for (sfx = known_sfx; sfx != NULL; sfx = sfx->next)
-               if (sfx->flags & SFXFLAG_SERVERSOUND)
-               {
-                       S_UnlockSfx (sfx);
-                       sfx->flags &= ~SFXFLAG_SERVERSOUND;
-               }
+               sfx->flags &= ~SFXFLAG_LEVELSOUND;
+}
 
-       // Add 1 lock and the SFXFLAG_SERVERSOUND flag to each sfx in "serversound"
-       for (i = 1; i < numsounds; i++)
-       {
-               sfx = S_FindName (serversound[i]);
-               if (sfx != NULL)
-               {
-                       S_LockSfx (sfx);
-                       sfx->flags |= SFXFLAG_SERVERSOUND;
-               }
-       }
+/*
+==================
+S_PurgeUnused
+==================
+*/
+void S_PurgeUnused(void)
+{
+       sfx_t *sfx;
+       sfx_t *sfxnext;
 
-       // Free all unlocked sfx
+       // Free all not-precached per-level sfx
        for (sfx = known_sfx;sfx;sfx = sfxnext)
        {
                sfxnext = sfx->next;
-               S_FreeSfx (sfx, false);
+               if (!(sfx->flags & (SFXFLAG_LEVELSOUND | SFXFLAG_MENUSOUND)))
+                       S_FreeSfx (sfx, false);
        }
 }
 
@@ -938,7 +1098,7 @@ void S_ServerSounds (char serversound [][MAX_QPATH], unsigned int numsounds)
 S_PrecacheSound
 ==================
 */
-sfx_t *S_PrecacheSound (const char *name, qboolean complain, qboolean lock)
+sfx_t *S_PrecacheSound (const char *name, qboolean complain, qboolean levelsound)
 {
        sfx_t *sfx;
 
@@ -949,11 +1109,19 @@ sfx_t *S_PrecacheSound (const char *name, qboolean complain, qboolean lock)
                return NULL;
 
        sfx = S_FindName (name);
+
        if (sfx == NULL)
                return NULL;
 
-       if (lock)
-               S_LockSfx (sfx);
+       // clear the FILEMISSING flag so that S_LoadSound will try again on a
+       // previously missing file
+       sfx->flags &= ~ SFXFLAG_FILEMISSING;
+
+       // set a flag to indicate this has been precached for this level or permanently
+       if (levelsound)
+               sfx->flags |= SFXFLAG_LEVELSOUND;
+       else
+               sfx->flags |= SFXFLAG_MENUSOUND;
 
        if (!nosound.integer && snd_precache.integer)
                S_LoadSound(sfx, complain);
@@ -963,39 +1131,35 @@ sfx_t *S_PrecacheSound (const char *name, qboolean complain, qboolean lock)
 
 /*
 ==================
-S_IsSoundPrecached
+S_SoundLength
 ==================
 */
-qboolean S_IsSoundPrecached (const sfx_t *sfx)
+
+float S_SoundLength(const char *name)
 {
-       return (sfx != NULL && sfx->fetcher != NULL);
-}
+       sfx_t *sfx;
 
-/*
-==================
-S_LockSfx
+       if (!snd_initialized.integer)
+               return -1;
+       if (name == NULL || name[0] == 0)
+               return -1;
 
-Add a lock to a SFX
-==================
-*/
-void S_LockSfx (sfx_t *sfx)
-{
-       sfx->locks++;
+       sfx = S_FindName(name);
+       if (sfx == NULL)
+               return -1;
+       return sfx->total_length / (float) S_GetSoundRate();
 }
 
 /*
 ==================
-S_UnlockSfx
-
-Remove a lock from a SFX
+S_IsSoundPrecached
 ==================
 */
-void S_UnlockSfx (sfx_t *sfx)
+qboolean S_IsSoundPrecached (const sfx_t *sfx)
 {
-       sfx->locks--;
+       return (sfx != NULL && sfx->fetcher != NULL) || (sfx == &changevolume_sfx);
 }
 
-
 /*
 ==================
 S_BlockSound
@@ -1031,45 +1195,49 @@ channel_t *SND_PickChannel(int entnum, int entchannel)
        int first_to_die;
        int first_life_left, life_left;
        channel_t* ch;
+       sfx_t *sfx; // use this instead of ch->sfx->, because that is volatile.
 
 // Check for replacement sound, or find the best one to replace
        first_to_die = -1;
        first_life_left = 0x7fffffff;
-       for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++)
+
+       // entity channels try to replace the existing sound on the channel
+       // channels <= 0 are autochannels
+       if (IS_CHAN_SINGLE(entchannel))
        {
-               ch = &channels[ch_idx];
-               if (entchannel != 0)
+               for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++)
                {
-                       // try to override an existing channel
-                       if (ch->entnum == entnum && (ch->entchannel == entchannel || entchannel == -1) )
+                       ch = &channels[ch_idx];
+                       if (ch->entnum == entnum && ch->entchannel == entchannel)
                        {
                                // always override sound from same entity
-                               first_to_die = ch_idx;
-                               break;
+                               S_StopChannel (ch_idx, true, false);
+                               return &channels[ch_idx];
                        }
                }
-               else
+       }
+
+       // there was no channel to override, so look for the first empty one
+       for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++)
+       {
+               ch = &channels[ch_idx];
+               sfx = ch->sfx; // fetch the volatile variable
+               if (!sfx)
                {
-                       if (!ch->sfx)
-                       {
-                               // no sound on this channel
-                               first_to_die = ch_idx;
-                               break;
-                       }
+                       // no sound on this channel
+                       first_to_die = ch_idx;
+                       goto emptychan_found;
                }
 
-               if (ch->sfx)
-               {
-                       // don't let monster sounds override player sounds
-                       if (ch->entnum == cl.viewentity && entnum != cl.viewentity)
-                               continue;
+               // don't let monster sounds override player sounds
+               if (ch->entnum == cl.viewentity && entnum != cl.viewentity)
+                       continue;
 
-                       // don't override looped sounds
-                       if ((ch->flags & CHANNELFLAG_FORCELOOP) || ch->sfx->loopstart >= 0)
-                               continue;
-               }
+               // don't override looped sounds
+               if ((ch->flags & CHANNELFLAG_FORCELOOP) || sfx->loopstart < sfx->total_length)
+                       continue;
+               life_left = sfx->total_length - ch->pos;
 
-               life_left = (int)(ch->end - snd_renderbuffer->endframe);
                if (life_left < first_life_left)
                {
                        first_life_left = life_left;
@@ -1079,9 +1247,10 @@ channel_t *SND_PickChannel(int entnum, int entchannel)
 
        if (first_to_die == -1)
                return NULL;
+       
+       S_StopChannel (first_to_die, true, false);
 
-       S_StopChannel (first_to_die);
-
+emptychan_found:
        return &channels[first_to_die];
 }
 
@@ -1092,34 +1261,167 @@ SND_Spatialize
 Spatializes a channel
 =================
 */
-void SND_Spatialize(channel_t *ch, qboolean isstatic)
+extern cvar_t cl_gameplayfix_soundsmovewithentities;
+void SND_Spatialize_WithSfx(channel_t *ch, qboolean isstatic, sfx_t *sfx)
 {
        int i;
+       double f;
+       float angle_side, angle_front, angle_factor;
        vec_t dist, mastervol, intensity, vol;
        vec3_t source_vec;
 
        // update sound origin if we know about the entity
-       if (ch->entnum > 0 && cls.state == ca_connected && cl.entities[ch->entnum].state_current.active)
+       if (ch->entnum > 0 && cls.state == ca_connected && cl_gameplayfix_soundsmovewithentities.integer)
        {
-               //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] && 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);
+               if (ch->entnum >= MAX_EDICTS)
+               {
+                       //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]);
+
+                       if (ch->entnum > MAX_EDICTS)
+                               if (!CL_VM_GetEntitySoundOrigin(ch->entnum, ch->origin))
+                                       ch->entnum = MAX_EDICTS; // entity was removed, disown sound
+               }
+               else if (cl.entities[ch->entnum].state_current.active)
+               {
+                       dp_model_t *model;
+                       //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]);
+                       model = CL_GetModelByIndex(cl.entities[ch->entnum].state_current.modelindex);
+                       if (model && model->soundfromcenter)
+                               VectorMAM(0.5f, cl.entities[ch->entnum].render.mins, 0.5f, cl.entities[ch->entnum].render.maxs, ch->origin);
+                       else
+                               Matrix4x4_OriginFromMatrix(&cl.entities[ch->entnum].render.matrix, ch->origin);
+               }
        }
 
        mastervol = ch->master_vol;
+
        // Adjust volume of static sounds
        if (isstatic)
                mastervol *= snd_staticvolume.value;
+       else if(!(ch->flags & CHANNELFLAG_FULLVOLUME)) // same as SND_PaintChannel uses
+       {
+               // old legacy separated cvars
+               if(ch->entnum >= MAX_EDICTS)
+               {
+                       switch(ch->entchannel)
+                       {
+                               case 0: mastervol *= snd_csqcchannel0volume.value; break;
+                               case 1: mastervol *= snd_csqcchannel1volume.value; break;
+                               case 2: mastervol *= snd_csqcchannel2volume.value; break;
+                               case 3: mastervol *= snd_csqcchannel3volume.value; break;
+                               case 4: mastervol *= snd_csqcchannel4volume.value; break;
+                               case 5: mastervol *= snd_csqcchannel5volume.value; break;
+                               case 6: mastervol *= snd_csqcchannel6volume.value; break;
+                               case 7: mastervol *= snd_csqcchannel7volume.value; break;
+                               default:                                           break;
+                       }
+               }
+               else if(ch->entnum == 0)
+               {
+                       switch(ch->entchannel)
+                       {
+                               case 0: mastervol *= snd_worldchannel0volume.value; break;
+                               case 1: mastervol *= snd_worldchannel1volume.value; break;
+                               case 2: mastervol *= snd_worldchannel2volume.value; break;
+                               case 3: mastervol *= snd_worldchannel3volume.value; break;
+                               case 4: mastervol *= snd_worldchannel4volume.value; break;
+                               case 5: mastervol *= snd_worldchannel5volume.value; break;
+                               case 6: mastervol *= snd_worldchannel6volume.value; break;
+                               case 7: mastervol *= snd_worldchannel7volume.value; break;
+                               default:                                            break;
+                       }
+               }
+               else if(ch->entnum > 0 && ch->entnum <= cl.maxclients)
+               {
+                       switch(ch->entchannel)
+                       {
+                               case 0: mastervol *= snd_playerchannel0volume.value; break;
+                               case 1: mastervol *= snd_playerchannel1volume.value; break;
+                               case 2: mastervol *= snd_playerchannel2volume.value; break;
+                               case 3: mastervol *= snd_playerchannel3volume.value; break;
+                               case 4: mastervol *= snd_playerchannel4volume.value; break;
+                               case 5: mastervol *= snd_playerchannel5volume.value; break;
+                               case 6: mastervol *= snd_playerchannel6volume.value; break;
+                               case 7: mastervol *= snd_playerchannel7volume.value; break;
+                               default:                                             break;
+                       }
+               }
+               else
+               {
+                       switch(ch->entchannel)
+                       {
+                               case 0: mastervol *= snd_entchannel0volume.value; break;
+                               case 1: mastervol *= snd_entchannel1volume.value; break;
+                               case 2: mastervol *= snd_entchannel2volume.value; break;
+                               case 3: mastervol *= snd_entchannel3volume.value; break;
+                               case 4: mastervol *= snd_entchannel4volume.value; break;
+                               case 5: mastervol *= snd_entchannel5volume.value; break;
+                               case 6: mastervol *= snd_entchannel6volume.value; break;
+                               case 7: mastervol *= snd_entchannel7volume.value; break;
+                               default:                                          break;
+                       }
+               }
+
+               switch(ch->entchannel)
+               {
+                       case 0:  mastervol *= snd_channel0volume.value; break;
+                       case 1:  mastervol *= snd_channel1volume.value; break;
+                       case 2:  mastervol *= snd_channel2volume.value; break;
+                       case 3:  mastervol *= snd_channel3volume.value; break;
+                       case 4:  mastervol *= snd_channel4volume.value; break;
+                       case 5:  mastervol *= snd_channel5volume.value; break;
+                       case 6:  mastervol *= snd_channel6volume.value; break;
+                       case 7:  mastervol *= snd_channel7volume.value; break;
+                       default: mastervol *= Cvar_VariableValueOr(va("snd_channel%dvolume", CHAN_ENGINE2CVAR(ch->entchannel)), 1.0); break;
+               }
+       }
+
+       // If this channel does not manage its own volume (like CD tracks)
+       if (!(ch->flags & CHANNELFLAG_FULLVOLUME))
+               mastervol *= volume.value;
+
+       // clamp HERE to allow to go at most 10dB past mastervolume (before clamping), when mastervolume < -10dB (so relative volumes don't get too messy)
+       mastervol = bound(0, mastervol, 655360);
+
+       // always apply "master"
+       mastervol *= mastervolume.value;
+
+       // add in ReplayGain very late; prevent clipping when close
+       if(sfx)
+       if(sfx->volume_peak > 0)
+       {
+               // Replaygain support
+               // Con_DPrintf("Setting volume on ReplayGain-enabled track... %f -> ", fvol);
+               mastervol *= sfx->volume_mult;
+               if(mastervol * sfx->volume_peak > 65536)
+                       mastervol = 65536 / sfx->volume_peak;
+               // Con_DPrintf("%f\n", fvol);
+       }
+
+       // clamp HERE to keep relative volumes of the channels correct
+       mastervol = bound(0, mastervol, 65536);
 
        // 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)
        {
-               for (i = 0;i < SND_LISTENERS;i++)
+               ch->prologic_invert = 1;
+               if (snd_spatialization_prologic.integer != 0)
                {
-                       vol = mastervol * snd_speakerlayout.listeners[i].ambientvolume;
-                       ch->listener_volume[i] = (int)bound(0, vol, 255);
+                       vol = mastervol * snd_speakerlayout.listeners[0].ambientvolume * sqrt(0.5);
+                       ch->listener_volume[0] = (int)bound(0, vol, 65536);
+                       vol = mastervol * snd_speakerlayout.listeners[1].ambientvolume * sqrt(0.5);
+                       ch->listener_volume[1] = (int)bound(0, vol, 65536);
+                       for (i = 2;i < SND_LISTENERS;i++)
+                               ch->listener_volume[i] = 0;
+               }
+               else
+               {
+                       for (i = 0;i < SND_LISTENERS;i++)
+                       {
+                               vol = mastervol * snd_speakerlayout.listeners[i].ambientvolume;
+                               ch->listener_volume[i] = (int)bound(0, vol, 65536);
+                       }
                }
        }
        else
@@ -1130,12 +1432,119 @@ void SND_Spatialize(channel_t *ch, qboolean isstatic)
                intensity = mastervol * (1.0 - dist * ch->dist_mult);
                if (intensity > 0)
                {
-                       for (i = 0;i < SND_LISTENERS;i++)
+                       qboolean occluded = false;
+                       if (snd_spatialization_occlusion.integer)
                        {
-                               Matrix4x4_Transform(&listener_matrix[i], ch->origin, source_vec);
-                               VectorNormalize(source_vec);
-                               vol = intensity * max(0, source_vec[0] * snd_speakerlayout.listeners[i].dotscale + snd_speakerlayout.listeners[i].dotbias);
-                               ch->listener_volume[i] = (int)bound(0, vol, 255);
+                               if(snd_spatialization_occlusion.integer & 1)
+                                       if(listener_pvs)
+                                       {
+                                               int cluster = cl.worldmodel->brush.PointInLeaf(cl.worldmodel, ch->origin)->clusterindex;
+                                               if(cluster >= 0 && cluster < 8 * listener_pvsbytes && !CHECKPVSBIT(listener_pvs, cluster))
+                                                       occluded = true;
+                                       }
+
+                               if(snd_spatialization_occlusion.integer & 2)
+                                       if(!occluded)
+                                               if(cl.worldmodel && cl.worldmodel->brush.TraceLineOfSight && !cl.worldmodel->brush.TraceLineOfSight(cl.worldmodel, listener_origin, ch->origin))
+                                                       occluded = true;
+                       }
+                       if(occluded)
+                               intensity *= 0.5;
+
+                       ch->prologic_invert = 1;
+                       if (snd_spatialization_prologic.integer != 0)
+                       {
+                               if (dist == 0)
+                                       angle_factor = 0.5;
+                               else
+                               {
+                                       Matrix4x4_Transform(&listener_basematrix, ch->origin, source_vec);
+                                       VectorNormalize(source_vec);
+
+                                       switch(spatialmethod)
+                                       {
+                                               case SPATIAL_LOG:
+                                                       if(dist == 0)
+                                                               f = spatialmin + spatialdiff * (spatialfactor < 0); // avoid log(0), but do the right thing
+                                                       else
+                                                               f = spatialmin + spatialdiff * bound(0, (log(dist) - spatialoffset) * spatialfactor, 1);
+                                                       VectorScale(source_vec, f, source_vec);
+                                                       break;
+                                               case SPATIAL_POW:
+                                                       f = (pow(dist, spatialpower) - spatialoffset) * spatialfactor;
+                                                       f = spatialmin + spatialdiff * bound(0, f, 1);
+                                                       VectorScale(source_vec, f, source_vec);
+                                                       break;
+                                               case SPATIAL_THRESH:
+                                                       f = spatialmin + spatialdiff * (dist < spatialoffset);
+                                                       VectorScale(source_vec, f, source_vec);
+                                                       break;
+                                               case SPATIAL_NONE:
+                                               default:
+                                                       break;
+                                       }
+
+                                       // 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
+                                       source_vec[2] = 0;
+                                       VectorNormalize(source_vec);
+                                       angle_side = acos(source_vec[0]) / M_PI * 180;  // angle between 0 and 180 degrees
+                                       angle_front = asin(source_vec[1]) / M_PI * 180; // angle between -90 and 90 degrees
+                                       if (angle_side > snd_spatialization_prologic_frontangle.value)
+                                       {
+                                               ch->prologic_invert = -1;       // this will cause the right channel to do a 180 degrees phase shift (turning the sound wave upside down),
+                                                                                                       // but the best would be 90 degrees phase shift left and a -90 degrees phase shift right.
+                                               angle_factor = (angle_side - snd_spatialization_prologic_frontangle.value) / (360 - 2 * snd_spatialization_prologic_frontangle.value);
+                                               // angle_factor is between 0 and 1 and represents the angle range from the front left, to all the surround speakers (amount may vary,
+                                               // 1 in prologic I 2 in prologic II and 3 or 4 in prologic IIx) to the front right speaker.
+                                               if (angle_front > 0)
+                                                       angle_factor = 1 - angle_factor;
+                                       }
+                                       else
+                                               angle_factor = angle_front / snd_spatialization_prologic_frontangle.value / 2.0 + 0.5;
+                                               //angle_factor is between 0 and 1 and represents the angle range from the front left to the center to the front right speaker
+                               }
+
+                               vol = intensity * sqrt(angle_factor);
+                               ch->listener_volume[0] = (int)bound(0, vol, 65536);
+                               vol = intensity * sqrt(1 - angle_factor);
+                               ch->listener_volume[1] = (int)bound(0, vol, 65536);
+                               for (i = 2;i < SND_LISTENERS;i++)
+                                       ch->listener_volume[i] = 0;
+                       }
+                       else
+                       {
+                               for (i = 0;i < SND_LISTENERS;i++)
+                               {
+                                       Matrix4x4_Transform(&listener_matrix[i], ch->origin, source_vec);
+                                       VectorNormalize(source_vec);
+
+                                       switch(spatialmethod)
+                                       {
+                                               case SPATIAL_LOG:
+                                                       if(dist == 0)
+                                                               f = spatialmin + spatialdiff * (spatialfactor < 0); // avoid log(0), but do the right thing
+                                                       else
+                                                               f = spatialmin + spatialdiff * bound(0, (log(dist) - spatialoffset) * spatialfactor, 1);
+                                                       VectorScale(source_vec, f, source_vec);
+                                                       break;
+                                               case SPATIAL_POW:
+                                                       f = (pow(dist, spatialpower) - spatialoffset) * spatialfactor;
+                                                       f = spatialmin + spatialdiff * bound(0, f, 1);
+                                                       VectorScale(source_vec, f, source_vec);
+                                                       break;
+                                               case SPATIAL_THRESH:
+                                                       f = spatialmin + spatialdiff * (dist < spatialoffset);
+                                                       VectorScale(source_vec, f, source_vec);
+                                                       break;
+                                               case SPATIAL_NONE:
+                                               default:
+                                                       break;
+                                       }
+
+                                       vol = intensity * max(0, source_vec[0] * snd_speakerlayout.listeners[i].dotscale + snd_speakerlayout.listeners[i].dotbias);
+
+                                       ch->listener_volume[i] = (int)bound(0, vol, 65536);
+                               }
                        }
                }
                else
@@ -1143,112 +1552,174 @@ void SND_Spatialize(channel_t *ch, qboolean isstatic)
                                ch->listener_volume[i] = 0;
        }
 }
+void SND_Spatialize(channel_t *ch, qboolean isstatic)
+{
+       sfx_t *sfx = ch->sfx;
+       SND_Spatialize_WithSfx(ch, isstatic, sfx);
+}
 
 
 // =======================================================================
 // 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)
+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)
 {
+       if (!sfx)
+       {
+               Con_Printf("S_PlaySfxOnChannel called with NULL??\n");
+               return;
+       }
+
+       if ((sfx->loopstart < sfx->total_length) || (flags & CHANNELFLAG_FORCELOOP))
+       {
+               if(!snd_startloopingsounds.integer)
+                       return;
+       }
+       else
+       {
+               if(!snd_startnonloopingsounds.integer)
+                       return;
+       }
+
        // Initialize the channel
+       // a crash was reported on an in-use channel, so check here...
+       if (target_chan->sfx)
+       {
+               int channelindex = (int)(target_chan - channels);
+               Con_Printf("S_PlaySfxOnChannel(%s): channel %i already in use??  Clearing.\n", sfx->name, channelindex);
+               S_StopChannel (channelindex, true, false);
+       }
+       // We MUST set sfx LAST because otherwise we could crash a threaded mixer
+       // (otherwise we'd have to call SndSys_LockRenderBuffer here)
        memset (target_chan, 0, sizeof (*target_chan));
        VectorCopy (origin, target_chan->origin);
-       target_chan->master_vol = (int)(fvol * 255);
-       target_chan->sfx = sfx;
-       target_chan->end = snd_renderbuffer->endframe + sfx->total_length;
-       target_chan->lastptime = snd_renderbuffer->endframe;
        target_chan->flags = flags;
+       target_chan->pos = startpos; // start of the sound
+       target_chan->entnum = entnum;
+       target_chan->entchannel = entchannel;
 
        // If it's a static sound
        if (isstatic)
        {
-               if (sfx->loopstart == -1)
+               if (sfx->loopstart >= sfx->total_length && (cls.protocol == PROTOCOL_QUAKE || cls.protocol == PROTOCOL_QUAKEWORLD))
                        Con_DPrintf("Quake compatibility warning: Static sound \"%s\" is not looped\n", sfx->name);
                target_chan->dist_mult = attenuation / (64.0f * snd_soundradius.value);
        }
        else
                target_chan->dist_mult = attenuation / snd_soundradius.value;
 
-       // Lock the SFX during play
-       S_LockSfx (sfx);
+       // set the listener volumes
+       S_SetChannelVolume(target_chan - channels, fvol);
+       SND_Spatialize_WithSfx (target_chan, isstatic, sfx);
+
+       // finally, set the sfx pointer, so the channel becomes valid for playback
+       // and will be noticed by the mixer
+       target_chan->sfx = sfx;
 }
 
 
-int S_StartSound (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
+int S_StartSound_StartPosition_Flags (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation, float startposition, int flags)
 {
-       channel_t *target_chan, *check;
-       int             ch_idx;
-       int             skip;
+       channel_t *target_chan, *check, *ch;
+       int             ch_idx, startpos;
 
        if (snd_renderbuffer == NULL || sfx == NULL || nosound.integer)
                return -1;
 
-       if (sfx->fetcher == NULL)
+       if(sfx == &changevolume_sfx)
+       {
+               if (!IS_CHAN_SINGLE(entchannel))
+                       return -1;
+               for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++)
+               {
+                       ch = &channels[ch_idx];
+                       if (ch->entnum == entnum && ch->entchannel == entchannel)
+                       {
+                               S_SetChannelVolume(ch_idx, fvol);
+                               ch->dist_mult = attenuation / snd_soundradius.value;
+                               SND_Spatialize(ch, false);
+                               return ch_idx;
+                       }
+               }
                return -1;
+       }
 
-       if (entnum && entnum >= cl.max_entities)
-               CL_ExpandEntities(entnum);
+       if (sfx->fetcher == NULL)
+               return -1;
 
        // Pick a channel to play on
        target_chan = SND_PickChannel(entnum, entchannel);
        if (!target_chan)
                return -1;
 
-       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++)
+       startpos = (int)(startposition * S_GetSoundRate());
+       if (startpos == 0)
        {
-               if (check == target_chan)
-                       continue;
-               if (check->sfx == sfx && !check->pos)
+               for (ch_idx=NUM_AMBIENTS ; ch_idx < NUM_AMBIENTS + MAX_DYNAMIC_CHANNELS ; ch_idx++, check++)
                {
-                       skip = (int)(0.1 * snd_renderbuffer->format.speed);
-                       if (skip > (int)sfx->total_length)
-                               skip = (int)sfx->total_length;
-                       if (skip > 0)
-                               skip = rand() % skip;
-                       target_chan->pos += skip;
-                       target_chan->end -= skip;
-                       break;
+                       if (check == target_chan)
+                               continue;
+                       if (check->sfx == sfx && check->pos == 0)
+                       {
+                               // use negative pos offset to delay this sound effect
+                               startpos = (int)lhrandom(0, -0.1 * snd_renderbuffer->format.speed);
+                               break;
+                       }
                }
        }
 
+       S_PlaySfxOnChannel (sfx, target_chan, flags, origin, fvol, attenuation, false, entnum, entchannel, startpos);
+
        return (target_chan - channels);
 }
 
-void S_StopChannel (unsigned int channel_ind)
+int S_StartSound_StartPosition (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation, float startposition)
+{
+       return S_StartSound_StartPosition_Flags(entnum, entchannel, sfx, origin, fvol, attenuation, startposition, CHANNELFLAG_NONE);
+}
+
+int S_StartSound (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
+{
+       return S_StartSound_StartPosition(entnum, entchannel, sfx, origin, fvol, attenuation, 0);
+}
+
+void S_StopChannel (unsigned int channel_ind, qboolean lockmutex, qboolean freesfx)
 {
        channel_t *ch;
+       sfx_t *sfx;
 
        if (channel_ind >= total_channels)
                return;
 
+       // we have to lock an audio mutex to prevent crashes if an audio mixer
+       // thread is currently mixing this channel
+       // the SndSys_LockRenderBuffer function uses such a mutex in
+       // threaded sound backends
+       if (lockmutex && !simsound)
+               SndSys_LockRenderBuffer();
+       
        ch = &channels[channel_ind];
+       sfx = ch->sfx;
        if (ch->sfx != NULL)
        {
-               sfx_t *sfx = ch->sfx;
-
                if (sfx->fetcher != NULL)
                {
                        snd_fetcher_endsb_t fetcher_endsb = sfx->fetcher->endsb;
                        if (fetcher_endsb != NULL)
-                               fetcher_endsb (ch);
+                               fetcher_endsb (ch->fetcher_data);
                }
 
-               // Remove the lock it holds
-               S_UnlockSfx (sfx);
-
+               ch->fetcher_data = NULL;
                ch->sfx = NULL;
        }
-       ch->end = 0;
+       if (lockmutex && !simsound)
+               SndSys_UnlockRenderBuffer();
+       if (freesfx)
+               S_FreeSfx(sfx, true);
 }
 
 
@@ -1259,7 +1730,8 @@ qboolean S_SetChannelFlag (unsigned int ch_ind, unsigned int flag, qboolean valu
 
        if (flag != CHANNELFLAG_FORCELOOP &&
                flag != CHANNELFLAG_PAUSED &&
-               flag != CHANNELFLAG_FULLVOLUME)
+               flag != CHANNELFLAG_FULLVOLUME &&
+               flag != CHANNELFLAG_LOCALSOUND)
                return false;
 
        if (value)
@@ -1277,7 +1749,7 @@ void S_StopSound(int entnum, int entchannel)
        for (i = 0; i < MAX_DYNAMIC_CHANNELS; i++)
                if (channels[i].entnum == entnum && channels[i].entchannel == entchannel)
                {
-                       S_StopChannel (i);
+                       S_StopChannel (i, true, false);
                        return;
                }
 }
@@ -1294,18 +1766,19 @@ void S_StopAllSounds (void)
        // stop CD audio because it may be using a faketrack
        CDAudio_Stop();
 
-       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));
-
-       // Mute the contents of the submittion buffer
        if (simsound || SndSys_LockRenderBuffer ())
        {
                int clear;
                size_t memsize;
 
+               for (i = 0; i < total_channels; i++)
+                       if (channels[i].sfx)
+                               S_StopChannel (i, false, false);
+
+               total_channels = MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS;   // no statics
+               memset(channels, 0, MAX_CHANNELS * sizeof(channel_t));
+
+               // Mute the contents of the submittion buffer
                clear = (snd_renderbuffer->format.width == 1) ? 0x80 : 0;
                memsize = snd_renderbuffer->maxframes * snd_renderbuffer->format.width * snd_renderbuffer->format.channels;
                memset(snd_renderbuffer->ring, clear, memsize);
@@ -1329,11 +1802,41 @@ void S_PauseGameSounds (qboolean toggle)
        }
 }
 
-void S_SetChannelVolume (unsigned int ch_ind, float fvol)
+void S_SetChannelVolume(unsigned int ch_ind, float fvol)
 {
-       channels[ch_ind].master_vol = (int)(fvol * 255.0f);
+       channels[ch_ind].master_vol = (int)(fvol * 65536.0f);
 }
 
+float S_GetChannelPosition (unsigned int ch_ind)
+{
+       // note: this is NOT accurate yet
+       int s;
+       channel_t *ch = &channels[ch_ind];
+       sfx_t *sfx = ch->sfx;
+       if (!sfx)
+               return -1;
+
+       s = ch->pos;
+       /*
+       if(!snd_usethreadedmixing)
+               s += _snd_mixahead.value * S_GetSoundRate();
+       */
+       return (s % sfx->total_length) / (float) S_GetSoundRate();
+}
+
+float S_GetEntChannelPosition(int entnum, int entchannel)
+{
+       channel_t *ch;
+       unsigned int i;
+
+       for (i = 0; i < total_channels; i++)
+       {
+               ch = &channels[i];
+               if (ch->entnum == entnum && ch->entchannel == entchannel)
+                       return S_GetChannelPosition(i);
+       }
+       return -1; // no playing sound in this channel
+}
 
 /*
 =================
@@ -1348,7 +1851,7 @@ void S_StaticSound (sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
                return;
        if (!sfx->fetcher)
        {
-               Con_DPrintf ("S_StaticSound: \"%s\" hasn't been precached\n", sfx->name);
+               Con_Printf ("S_StaticSound: \"%s\" hasn't been precached\n", sfx->name);
                return;
        }
 
@@ -1359,9 +1862,7 @@ void S_StaticSound (sfx_t *sfx, vec3_t origin, float fvol, float attenuation)
        }
 
        target_chan = &channels[total_channels++];
-       S_PlaySfxOnChannel (sfx, target_chan, CHANNELFLAG_FORCELOOP, origin, fvol, attenuation, true);
-
-       SND_Spatialize (target_chan, true);
+       S_PlaySfxOnChannel (sfx, target_chan, CHANNELFLAG_FORCELOOP, origin, fvol, attenuation, true, 0, 0, 0);
 }
 
 
@@ -1377,6 +1878,7 @@ void S_UpdateAmbientSounds (void)
        int                     ambient_channel;
        channel_t       *chan;
        unsigned char           ambientlevels[NUM_AMBIENTS];
+       sfx_t           *sfx;
 
        memset(ambientlevels, 0, sizeof(ambientlevels));
        if (cl.worldmodel && cl.worldmodel->brush.AmbientSoundLevelsForPoint)
@@ -1386,50 +1888,108 @@ void S_UpdateAmbientSounds (void)
        for (ambient_channel = 0 ; ambient_channel< NUM_AMBIENTS ; ambient_channel++)
        {
                chan = &channels[ambient_channel];
-               if (chan->sfx == NULL || chan->sfx->fetcher == NULL)
+               sfx = chan->sfx; // fetch the volatile variable
+               if (sfx == NULL || sfx->fetcher == NULL)
                        continue;
 
                vol = (int)ambientlevels[ambient_channel];
                if (vol < 8)
                        vol = 0;
+               vol *= 256;
 
                // Don't adjust volume too fast
                // FIXME: this rounds off to an int each frame, meaning there is little to no fade at extremely high framerates!
-               if (chan->master_vol < vol)
+               if (cl.time > cl.oldtime)
                {
-                       chan->master_vol += (int)(cl.realframetime * ambient_fade.value);
-                       if (chan->master_vol > vol)
-                               chan->master_vol = vol;
-               }
-               else if (chan->master_vol > vol)
-               {
-                       chan->master_vol -= (int)(cl.realframetime * ambient_fade.value);
                        if (chan->master_vol < vol)
-                               chan->master_vol = vol;
+                       {
+                               chan->master_vol += (int)((cl.time - cl.oldtime) * 256.0 * ambient_fade.value);
+                               if (chan->master_vol > vol)
+                                       chan->master_vol = vol;
+                       }
+                       else if (chan->master_vol > vol)
+                       {
+                               chan->master_vol -= (int)((cl.time - cl.oldtime) * 256.0 * ambient_fade.value);
+                               if (chan->master_vol < vol)
+                                       chan->master_vol = vol;
+                       }
                }
 
-               for (i = 0;i < SND_LISTENERS;i++)
-                       chan->listener_volume[i] = (int)(chan->master_vol * ambient_level.value * snd_speakerlayout.listeners[i].ambientvolume);
+               if (snd_spatialization_prologic.integer != 0)
+               {
+                       chan->listener_volume[0] = (int)bound(0, chan->master_vol * ambient_level.value * volume.value * mastervolume.value * snd_speakerlayout.listeners[0].ambientvolume * sqrt(0.5), 65536);
+                       chan->listener_volume[1] = (int)bound(0, chan->master_vol * ambient_level.value * volume.value * mastervolume.value * snd_speakerlayout.listeners[1].ambientvolume * sqrt(0.5), 65536);
+                       for (i = 2;i < SND_LISTENERS;i++)
+                               chan->listener_volume[i] = 0;
+               }
+               else
+               {
+                       for (i = 0;i < SND_LISTENERS;i++)
+                               chan->listener_volume[i] = (int)bound(0, chan->master_vol * ambient_level.value * volume.value * mastervolume.value * snd_speakerlayout.listeners[i].ambientvolume, 65536);
+               }
        }
 }
 
 static void S_PaintAndSubmit (void)
 {
        unsigned int newsoundtime, paintedtime, endtime, maxtime, usedframes;
+       int usesoundtimehack;
+       static int soundtimehack = -1;
+       static int oldsoundtime = 0;
 
        if (snd_renderbuffer == NULL || nosound.integer)
                return;
 
-       if (snd_blocked > 0 && !(cls.capturevideo.soundrate && !cls.capturevideo.realtime))
-               return;
-
        // Update sound time
-       if (cls.capturevideo.soundrate && !cls.capturevideo.realtime) // SUPER NASTY HACK to record non-realtime sound
+       snd_usethreadedmixing = false;
+       usesoundtimehack = true;
+       if (cls.timedemo) // SUPER NASTY HACK to mix non-realtime sound for more reliable benchmarking
+       {
+               usesoundtimehack = 1;
+               newsoundtime = (unsigned int)((double)cl.mtime[0] * (double)snd_renderbuffer->format.speed);
+       }
+       else if (cls.capturevideo.soundrate && !cls.capturevideo.realtime) // SUPER NASTY HACK to record non-realtime sound
+       {
+               usesoundtimehack = 2;
                newsoundtime = (unsigned int)((double)cls.capturevideo.frame * (double)snd_renderbuffer->format.speed / (double)cls.capturevideo.framerate);
+       }
        else if (simsound)
+       {
+               usesoundtimehack = 3;
                newsoundtime = (unsigned int)((realtime - snd_starttime) * (double)snd_renderbuffer->format.speed);
+       }
        else
+       {
+               snd_usethreadedmixing = snd_threaded && !cls.capturevideo.soundrate;
+               usesoundtimehack = 0;
                newsoundtime = SndSys_GetSoundTime();
+       }
+       // if the soundtimehack state changes we need to reset the soundtime
+       if (soundtimehack != usesoundtimehack)
+       {
+               snd_renderbuffer->startframe = snd_renderbuffer->endframe = soundtime = newsoundtime;
+
+               // Mute the contents of the submission buffer
+               if (simsound || SndSys_LockRenderBuffer ())
+               {
+                       int clear;
+                       size_t memsize;
+
+                       clear = (snd_renderbuffer->format.width == 1) ? 0x80 : 0;
+                       memsize = snd_renderbuffer->maxframes * snd_renderbuffer->format.width * snd_renderbuffer->format.channels;
+                       memset(snd_renderbuffer->ring, clear, memsize);
+
+                       if (!simsound)
+                               SndSys_UnlockRenderBuffer ();
+               }
+       }
+       soundtimehack = usesoundtimehack;
+
+       if (!soundtimehack && snd_blocked > 0)
+               return;
+
+       if (snd_usethreadedmixing)
+               return; // the audio thread will mix its own data
 
        newsoundtime += extrasoundtime;
        if (newsoundtime < soundtime)
@@ -1451,30 +2011,68 @@ static void S_PaintAndSubmit (void)
                        Con_DPrintf("S_PaintAndSubmit: new extra sound time = %u\n",
                                                extrasoundtime);
                }
-               else
+               else if (!soundtimehack)
                        Con_Printf("S_PaintAndSubmit: WARNING: newsoundtime < soundtime (%u < %u)\n",
                                           newsoundtime, soundtime);
        }
        soundtime = newsoundtime;
        recording_sound = (cls.capturevideo.soundrate != 0);
 
+       // Lock submitbuffer
+       if (!simsound && !SndSys_LockRenderBuffer())
+       {
+               // If the lock failed, stop here
+               Con_DPrint(">> S_PaintAndSubmit: SndSys_LockRenderBuffer() failed\n");
+               return;
+       }
+
        // Check to make sure that we haven't overshot
        paintedtime = snd_renderbuffer->endframe;
        if (paintedtime < soundtime)
                paintedtime = soundtime;
 
        // mix ahead of current position
-       endtime = soundtime + (unsigned int)(_snd_mixahead.value * (float)snd_renderbuffer->format.speed);
+       if (soundtimehack)
+               endtime = soundtime + (unsigned int)(_snd_mixahead.value * (float)snd_renderbuffer->format.speed);
+       else
+               endtime = soundtime + (unsigned int)(max(_snd_mixahead.value * (float)snd_renderbuffer->format.speed, min(3 * (soundtime - oldsoundtime), 0.3 * (float)snd_renderbuffer->format.speed)));
        usedframes = snd_renderbuffer->endframe - snd_renderbuffer->startframe;
        maxtime = paintedtime + snd_renderbuffer->maxframes - usedframes;
        endtime = min(endtime, maxtime);
 
-       S_PaintChannels(snd_renderbuffer, paintedtime, endtime);
+       while (paintedtime < endtime)
+       {
+               unsigned int startoffset;
+               unsigned int nbframes;
+
+               // see how much we can fit in the paint buffer
+               nbframes = endtime - paintedtime;
+               // limit to the end of the ring buffer (in case of wrapping)
+               startoffset = paintedtime % snd_renderbuffer->maxframes;
+               nbframes = min(nbframes, snd_renderbuffer->maxframes - startoffset);
+
+               // mix into the buffer
+               S_MixToBuffer(&snd_renderbuffer->ring[startoffset * snd_renderbuffer->format.width * snd_renderbuffer->format.channels], nbframes);
+
+               paintedtime += nbframes;
+               snd_renderbuffer->endframe = paintedtime;
+       }
+       if (!simsound)
+               SndSys_UnlockRenderBuffer();
+
+       // Remove outdated samples from the ring buffer, if any
+       if (snd_renderbuffer->startframe < soundtime)
+               snd_renderbuffer->startframe = soundtime;
 
        if (simsound)
                snd_renderbuffer->startframe = snd_renderbuffer->endframe;
        else
                SndSys_Submit();
+
+       oldsoundtime = soundtime;
+
+       cls.soundstats.latency_milliseconds = (snd_renderbuffer->endframe - snd_renderbuffer->startframe) * 1000 / snd_renderbuffer->format.speed;
+       R_TimeReport("audiomix");
 }
 
 /*
@@ -1486,29 +2084,85 @@ Called once each time through the main loop
 */
 void S_Update(const matrix4x4_t *listenermatrix)
 {
-       unsigned int i, j, total;
+       unsigned int i, j, k;
        channel_t *ch, *combine;
-       matrix4x4_t basematrix, rotatematrix;
+       matrix4x4_t rotatematrix;
 
        if (snd_renderbuffer == NULL || nosound.integer)
                return;
 
-       if (snd_blocked > 0 && !(cls.capturevideo.soundrate && !cls.capturevideo.realtime))
-               return;
+       {
+               double mindist_trans, maxdist_trans;
+
+               spatialmin = snd_spatialization_min.value;
+               spatialdiff = snd_spatialization_max.value - spatialmin;
+
+               if(snd_spatialization_control.value)
+               {
+                       spatialpower = snd_spatialization_power.value;
+
+                       if(spatialpower == 0)
+                       {
+                               spatialmethod = SPATIAL_LOG;
+                               mindist_trans = log(max(1, snd_spatialization_min_radius.value));
+                               maxdist_trans = log(max(1, snd_spatialization_max_radius.value));
+                       }
+                       else
+                       {
+                               spatialmethod = SPATIAL_POW;
+                               mindist_trans = pow(snd_spatialization_min_radius.value, spatialpower);
+                               maxdist_trans = pow(snd_spatialization_max_radius.value, spatialpower);
+                       }
+
+                       if(mindist_trans - maxdist_trans == 0)
+                       {
+                               spatialmethod = SPATIAL_THRESH;
+                               mindist_trans = snd_spatialization_min_radius.value;
+                       }
+                       else
+                       {
+                               spatialoffset = mindist_trans;
+                               spatialfactor = 1 / (maxdist_trans - mindist_trans);
+                       }
+               }
+               else
+                       spatialmethod = SPATIAL_NONE;
+
+       }
 
        // If snd_swapstereo or snd_channellayout has changed, recompute the channel layout
-       if (current_swapstereo != snd_swapstereo.integer ||
+       if (current_swapstereo != boolxor(snd_swapstereo.integer, v_flipped.integer) ||
                current_channellayout != snd_channellayout.integer)
                S_SetChannelLayout();
 
-       Matrix4x4_Invert_Simple(&basematrix, listenermatrix);
+       Matrix4x4_Invert_Simple(&listener_basematrix, listenermatrix);
        Matrix4x4_OriginFromMatrix(listenermatrix, listener_origin);
+       if (cl.worldmodel && cl.worldmodel->brush.FatPVS && cl.worldmodel->brush.num_pvsclusterbytes && cl.worldmodel->brush.PointInLeaf)
+       {
+               if(cl.worldmodel->brush.num_pvsclusterbytes != listener_pvsbytes)
+               {
+                       if(listener_pvs)
+                               Mem_Free(listener_pvs);
+                       listener_pvsbytes = cl.worldmodel->brush.num_pvsclusterbytes;
+                       listener_pvs = (unsigned char *) Mem_Alloc(snd_mempool, listener_pvsbytes);
+               }
+               cl.worldmodel->brush.FatPVS(cl.worldmodel, listener_origin, 2, listener_pvs, listener_pvsbytes, 0);
+       }
+       else
+       {
+               if(listener_pvs)
+               {
+                       Mem_Free(listener_pvs);
+                       listener_pvs = NULL;
+               }
+               listener_pvsbytes = 0;
+       }
 
        // calculate the current matrices
        for (j = 0;j < SND_LISTENERS;j++)
        {
                Matrix4x4_CreateFromQuakeEntity(&rotatematrix, 0, 0, 0, 0, -snd_speakerlayout.listeners[j].yawangle, 0, 1);
-               Matrix4x4_Concat(&listener_matrix[j], &rotatematrix, &basematrix);
+               Matrix4x4_Concat(&listener_matrix[j], &rotatematrix, &listener_basematrix);
                // I think this should now do this:
                //   1. create a rotation matrix for rotating by e.g. -90 degrees CCW
                //      (note: the matrix will rotate the OBJECT, not the VIEWER, so its
@@ -1525,13 +2179,17 @@ void S_Update(const matrix4x4_t *listenermatrix)
        S_UpdateAmbientSounds ();
 
        combine = NULL;
+       R_TimeReport("audioprep");
 
        // update spatialization for static and dynamic sounds
+       cls.soundstats.totalsounds = 0;
+       cls.soundstats.mixedsounds = 0;
        ch = channels+NUM_AMBIENTS;
        for (i=NUM_AMBIENTS ; i<total_channels; i++, ch++)
        {
                if (!ch->sfx)
                        continue;
+               cls.soundstats.totalsounds++;
 
                // respatialize channel
                SND_Spatialize(ch, i >= MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS);
@@ -1564,34 +2222,24 @@ void S_Update(const matrix4x4_t *listenermatrix)
                        {
                                for (j = 0;j < SND_LISTENERS;j++)
                                {
-                                       combine->listener_volume[j] += ch->listener_volume[j];
+                                       combine->listener_volume[j] = bound(0, combine->listener_volume[j] + ch->listener_volume[j], 65536);
                                        ch->listener_volume[j] = 0;
                                }
                        }
                }
+               for (k = 0;k < SND_LISTENERS;k++)
+                       if (ch->listener_volume[k])
+                               break;
+               if (k < SND_LISTENERS)
+                       cls.soundstats.mixedsounds++;
        }
+       R_TimeReport("audiospatialize");
 
        sound_spatialized = true;
 
        // debugging output
        if (snd_show.integer)
-       {
-               total = 0;
-               ch = channels;
-               for (i=0 ; i<total_channels; i++, ch++)
-               {
-                       if (ch->sfx)
-                       {
-                               for (j = 0;j < SND_LISTENERS;j++)
-                                       if (ch->listener_volume[j])
-                                               break;
-                               if (j < SND_LISTENERS)
-                                       total++;
-                       }
-               }
-
-               Con_Printf("----(%u)----\n", total);
-       }
+               Con_Printf("----(%u)----\n", cls.soundstats.mixedsounds);
 
        S_PaintAndSubmit();
 }
@@ -1619,9 +2267,12 @@ qboolean S_LocalSound (const char *sound)
                return false;
        }
 
-       // Local sounds must not be freed
-       sfx->flags |= SFXFLAG_PERMANENTLOCK;
+       // menu sounds must not be freed on level change
+       sfx->flags |= SFXFLAG_MENUSOUND;
 
+       // fun fact: in Quake 1, this used -1 "replace any entity channel",
+       // which we no longer support anyway
+       // changed by Black in r4297 "Changed S_LocalSound to play multiple sounds at a time."
        ch_ind = S_StartSound (cl.viewentity, 0, sfx, vec3_origin, 1, 0);
        if (ch_ind < 0)
                return false;