/*
====================
CL_PlayDemo_f
play [demoname]
====================
*/
void CL_PlayDemo_f (void)
{
char name[MAX_QPATH];
int c;
qboolean neg = false;
qfile_t *f;
if (Cmd_Argc() != 2)
{
Con_Print("play <demoname> : plays a demo\n");
return;
}
// open the demo file
strlcpy (name, Cmd_Argv(1), sizeof (name));
FS_DefaultExtension (name, ".dem", sizeof (name));
f = FS_OpenVirtualFile(name, false);
if (!f)
{
Con_Printf("ERROR: couldn't open %s.\n", name);
cls.demonum = -1; // stop demo loop
return;
}
cls.demostarting = true;
// disconnect from server
CL_Disconnect ();
Host_ShutdownServer ();
// update networking ports (this is mainly just needed at startup)
NetConn_UpdateSockets();
cls.protocol = PROTOCOL_QUAKE;
Con_Printf("Playing demo %s.\n", name);
cls.demofile = f;
strlcpy(cls.demoname, name, sizeof(cls.demoname));
cls.demoplayback = true;
demoplayback = true;
cls.state = ca_connected;
cls.forcetrack = 0;
while ((c = FS_Getc (cls.demofile)) != '\n')
if (c == '-')
neg = true;
else
cls.forcetrack = cls.forcetrack * 10 + (c - '0');
if (neg)
cls.forcetrack = -cls.forcetrack;
cls.demostarting = false;
}
void Host_StartVideo(void)
{
if (!vid_opened && cls.state != ca_dedicated)
{
vid_opened = true;
// make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
NetConn_UpdateSockets();
VID_Start();
CDAudio_Startup();
}
}
void Host_Main(void)
{
double time1 = 0;
double time2 = 0;
double time3 = 0;
double cl_timer = 0, sv_timer = 0;
double clframetime, deltacleantime, olddirtytime, dirtytime;
double wait;
int pass1, pass2, pass3, i;
char vabuf[1024];
qboolean playing;
Host_Init();
realtime = 0;
host_dirtytime = Sys_DirtyTime();
for (;;)
{
if (setjmp(host_abortframe))
{
SCR_ClearLoadingScreen(false);
continue; // something bad happened, or the server disconnected
}
olddirtytime = host_dirtytime;
dirtytime = Sys_DirtyTime();
deltacleantime = dirtytime - olddirtytime;
if (deltacleantime < 0)
{
// warn if it's significant
if (deltacleantime < -0.01)
Con_Printf("Host_Mingled: time stepped backwards (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
deltacleantime = 0;
}
else if (deltacleantime >= 1800)
{
Con_Printf("Host_Mingled: time stepped forward (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
deltacleantime = 0;
}
realtime += deltacleantime;
host_dirtytime = dirtytime;
cl_timer += deltacleantime;
sv_timer += deltacleantime;
if (!svs.threaded)
{
svs.perf_acc_realtime += deltacleantime;
// Look for clients who have spawned
playing = false;
for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
if(host_client->begun)
if(host_client->netconnection)
playing = true;
if(sv.time < 10)
{
// don't accumulate time for the first 10 seconds of a match
// so things can settle
svs.perf_acc_realtime = svs.perf_acc_sleeptime = svs.perf_acc_lost = svs.perf_acc_offset = svs.perf_acc_offset_squared = svs.perf_acc_offset_max = svs.perf_acc_offset_samples = 0;
}
else if(svs.perf_acc_realtime > 5)
{
svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
if(svs.perf_acc_offset_samples > 0)
{
svs.perf_offset_max = svs.perf_acc_offset_max;
svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
}
if(svs.perf_lost > 0 && developer_extra.integer)
if(playing) // only complain if anyone is looking
Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
svs.perf_acc_realtime = svs.perf_acc_sleeptime = svs.perf_acc_lost = svs.perf_acc_offset = svs.perf_acc_offset_squared = svs.perf_acc_offset_max = svs.perf_acc_offset_samples = 0;
}
}
if (slowmo.value < 0.00001 && slowmo.value != 0)
Cvar_SetValue("slowmo", 0);
if (host_framerate.value < 0.00001 && host_framerate.value != 0)
Cvar_SetValue("host_framerate", 0);
// keep the random time dependent, but not when playing demos/benchmarking
if(!*sv_random_seed.string && !cls.demoplayback)
rand();
// get new key events
Key_EventQueue_Unblock();
SndSys_SendKeyEvents();
Sys_SendKeyEvents();
NetConn_UpdateSockets();
Log_DestBuffer_Flush();
// receive packets on each main loop iteration, as the main loop may
// be undersleeping due to select() detecting a new packet
if (sv.active && !svs.threaded)
NetConn_ServerFrame();
Curl_Run();
// check for commands typed to the host
Host_GetConsoleCommands();
// when a server is running we only execute console commands on server frames
// (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
// otherwise we execute them on client frames
if (sv.active ? sv_timer > 0 : cl_timer > 0)
{
// process console commands
// R_TimeReport("preconsole");
CL_VM_PreventInformationLeaks();
Cbuf_Frame();
// R_TimeReport("console");
}
//Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
// if the accumulators haven't become positive yet, wait a while
if (cls.state == ca_dedicated)
wait = sv_timer * -1000000.0;
else if (!sv.active || svs.threaded)
wait = cl_timer * -1000000.0;
else
wait = max(cl_timer, sv_timer) * -1000000.0;
if (!cls.timedemo && wait >= 1)
{
double time0, delta;
if(host_maxwait.value <= 0)
wait = min(wait, 1000000.0);
else
wait = min(wait, host_maxwait.value * 1000.0);
if(wait < 1)
wait = 1; // because we cast to int
time0 = Sys_DirtyTime();
if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer && !svs.threaded) {
NetConn_SleepMicroseconds((int)wait);
if (cls.state != ca_dedicated)
NetConn_ClientFrame(); // helps server browser get good ping values
// TODO can we do the same for ServerFrame? Probably not.
}
else
Sys_Sleep((int)wait);
delta = Sys_DirtyTime() - time0;
if (delta < 0 || delta >= 1800) delta = 0;
if (!svs.threaded)
svs.perf_acc_sleeptime += delta;
// R_TimeReport("sleep");
continue;
}
// limit the frametime steps to no more than 100ms each
if (cl_timer > 0.1)
cl_timer = 0.1;
if (sv_timer > 0.1)
{
if (!svs.threaded)
svs.perf_acc_lost += (sv_timer - 0.1);
sv_timer = 0.1;
}
R_TimeReport("---");
//-------------------
//
// server operations
//
//-------------------
// limit the frametime steps to no more than 100ms each
if (sv.active && sv_timer > 0 && !svs.threaded)
{
// execute one or more server frames, with an upper limit on how much
// execution time to spend on server frames to avoid freezing the game if
// the server is overloaded, this execution time limit means the game will
// slow down if the server is taking too long.
int framecount, framelimit = 1;
double advancetime, aborttime = 0;
float offset;
prvm_prog_t *prog = SVVM_prog;
// run the world state
// don't allow simulation to run too fast or too slow or logic glitches can occur
// stop running server frames if the wall time reaches this value
if (sys_ticrate.value <= 0)
advancetime = sv_timer;
else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
{
// synchronize to the client frametime, but no less than 10ms and no more than 100ms
advancetime = bound(0.01, cl_timer, 0.1);
}
else
{
advancetime = sys_ticrate.value;
// listen servers can run multiple server frames per client frame
framelimit = cl_maxphysicsframesperserverframe.integer;
aborttime = Sys_DirtyTime() + 0.1;
}
if(slowmo.value > 0 && slowmo.value < 1)
advancetime = min(advancetime, 0.1 / slowmo.value);
else
advancetime = min(advancetime, 0.1);
if(advancetime > 0)
{
offset = Sys_DirtyTime() - dirtytime;if (offset < 0 || offset >= 1800) offset = 0;
offset += sv_timer;
++svs.perf_acc_offset_samples;
svs.perf_acc_offset += offset;
svs.perf_acc_offset_squared += offset * offset;
if(svs.perf_acc_offset_max < offset)
svs.perf_acc_offset_max = offset;
}
// only advance time if not paused
// the game also pauses in singleplayer when menu or console is used
sv.frametime = advancetime * slowmo.value;
if (host_framerate.value)
sv.frametime = host_framerate.value;
if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
sv.frametime = 0;
for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
{
sv_timer -= advancetime;
// move things around and think unless paused
if (sv.frametime)
SV_Physics();
// if this server frame took too long, break out of the loop
if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
break;
}
R_TimeReport("serverphysics");
// send all messages to the clients
SV_SendClientMessages();
if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
prog->globals.fp[OFS_PARM0] = realtime - sv.pausedstart;
PRVM_serverglobalfloat(time) = sv.time;
prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
}
// send an heartbeat if enough time has passed since the last one
NetConn_Heartbeat(0);
R_TimeReport("servernetwork");
}
else if (!svs.threaded)
{
// don't let r_speeds display jump around
R_TimeReport("serverphysics");
R_TimeReport("servernetwork");
}
//-------------------
//
// client operations
//
//-------------------
if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
{
R_TimeReport("---");
Collision_Cache_NewFrame();
R_TimeReport("photoncache");
// decide the simulation time
if (cls.capturevideo.active)
{
//***
if (cls.capturevideo.realtime)
clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
else
{
clframetime = 1.0 / cls.capturevideo.framerate;
cl.realframetime = max(cl_timer, clframetime);
}
}
else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
{
clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
// when running slow, we need to sleep to keep input responsive
wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
if (wait > 0)
Sys_Sleep((int)wait);
}
else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
else
clframetime = cl.realframetime = cl_timer;
// apply slowmo scaling
clframetime *= cl.movevars_timescale;
// scale playback speed of demos by slowmo cvar
if (cls.demoplayback)
{
clframetime *= slowmo.value;
// if demo playback is paused, don't advance time at all
if (cls.demopaused)
clframetime = 0;
}
else
{
// host_framerate overrides all else
if (host_framerate.value)
clframetime = host_framerate.value;
if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
clframetime = 0;
}
if (cls.timedemo)
clframetime = cl.realframetime = cl_timer;
// deduct the frame time from the accumulator
cl_timer -= cl.realframetime;
cl.oldtime = cl.time;
cl.time += clframetime;
// update video
if (host_speeds.integer)
time1 = Sys_DirtyTime();
R_TimeReport("pre-input");
// Collect input into cmd
CL_Input();
R_TimeReport("input");
// check for new packets
NetConn_ClientFrame();
// read a new frame from a demo if needed
CL_ReadDemoMessage();
R_TimeReport("clientnetwork");
// now that packets have been read, send input to server
CL_SendMove();
R_TimeReport("sendmove");
// update client world (interpolate entities, create trails, etc)
CL_UpdateWorld();
R_TimeReport("lerpworld");
CL_Video_Frame();
R_TimeReport("client");
CL_UpdateScreen();
CL_MeshEntities_Reset();
R_TimeReport("render");
if (host_speeds.integer)
time2 = Sys_DirtyTime();
// update audio
if(cl.csqc_usecsqclistener)
{
S_Update(&cl.csqc_listenermatrix);
cl.csqc_usecsqclistener = false;
}
else
S_Update(&r_refdef.view.matrix);
CDAudio_Update();
R_TimeReport("audio");
// reset gathering of mouse input
in_mouse_x = in_mouse_y = 0;
if (host_speeds.integer)
{
pass1 = (int)((time1 - time3)*1000000);
time3 = Sys_DirtyTime();
pass2 = (int)((time2 - time1)*1000000);
pass3 = (int)((time3 - time2)*1000000);
Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
pass1+pass2+pass3, pass1, pass2, pass3);
}
}
#if MEMPARANOIA
Mem_CheckSentinelsGlobal();
#else
if (developer_memorydebug.integer)
Mem_CheckSentinelsGlobal();
#endif
// if there is some time remaining from this frame, reset the timers
if (cl_timer >= 0)
cl_timer = 0;
if (sv_timer >= 0)
{
if (!svs.threaded)
svs.perf_acc_lost += sv_timer;
sv_timer = 0;
}
host_framecount++;
}
}