added cvar sv_onlycsqcnetworking which disables legacy entity

networking, improving server performance for games that do not use
legacy entities

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@9284 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/sv_main.c b/sv_main.c
index 86820bbda583b02858133e284222a277c28a44bc..3886f9aa8527fb979b500c021045e28f14771ad0 100644 (file)
--- a/sv_main.c
+++ b/sv_main.c
@@ -128,6 +128,7 @@ cvar_t sv_warsowbunny_accel = {0, "sv_warsowbunny_accel", "0.1585", "how fast yo
 cvar_t sv_warsowbunny_topspeed = {0, "sv_warsowbunny_topspeed", "925", "soft speed limit (can get faster with rjs and on ramps)"};
 cvar_t sv_warsowbunny_turnaccel = {0, "sv_warsowbunny_turnaccel", "0", "max sharpness of turns (also master switch for the sv_warsowbunny_* mode; set this to 9 to enable)"};
 cvar_t sv_warsowbunny_backtosideratio = {0, "sv_warsowbunny_backtosideratio", "0.8", "lower values make it easier to change direction without losing speed; the drawback is \"understeering\" in sharp turns"};
+cvar_t sv_onlycsqcnetworking = {0, "sv_onlycsqcnetworking", "0", "disables legacy entity networking code for higher performance"};
 cvar_t sys_ticrate = {CVAR_SAVE, "sys_ticrate","0.0138889", "how long a server frame is in seconds, 0.05 is 20fps server rate, 0.1 is 10fps (can not be set higher than 0.1), 0 runs as many server frames as possible (makes games against bots a little smoother, overwhelms network players), 0.0138889 matches QuakeWorld physics"};
 cvar_t teamplay = {CVAR_NOTIFY, "teamplay","0", "teamplay mode, values depend on mod but typically 0 = no teams, 1 = no team damage no self damage, 2 = team damage and self damage, some mods support 3 = no team damage but can damage self"};
 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
@@ -417,6 +418,7 @@ void SV_Init (void)
        Cvar_RegisterVariable (&sv_warsowbunny_topspeed);
        Cvar_RegisterVariable (&sv_warsowbunny_turnaccel);
        Cvar_RegisterVariable (&sv_warsowbunny_backtosideratio);
+       Cvar_RegisterVariable (&sv_onlycsqcnetworking);
        Cvar_RegisterVariable (&sys_ticrate);
        Cvar_RegisterVariable (&teamplay);
        Cvar_RegisterVariable (&timelimit);
@@ -1010,11 +1012,17 @@ static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *c
        unsigned int version;
        unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
        unsigned int customizeentityforclient;
+       unsigned int sendentity;
        float f;
        vec3_t cullmins, cullmaxs;
        dp_model_t *model;
        prvm_eval_t *val, *val2;
 
+       // fast path for games that do not use legacy entity networking
+       sendentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendEntity)->function;
+       if (sv_onlycsqcnetworking.integer && !sendentity)
+               return false;
+
        // this 2 billion unit check is actually to detect NAN origins
        // (we really don't want to send those)
        if (!(VectorLength2(ent->fields.server->origin) < 2000000000.0*2000000000.0))
@@ -1249,8 +1257,7 @@ static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *c
        // we need to do some csqc entity upkeep here
        // get self.SendFlags and clear them
        // (to let the QC know that they've been read)
-       val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendEntity);
-       if (val->function)
+       if (sendentity)
        {
                val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendFlags);
                sendflags = (unsigned int)val->_float;