quakeforge/qw/source/cl_demo.c

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/*
cl_demo.c
(description)
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
static __attribute__ ((used)) const char rcsid[] =
"$Id$";
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
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#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
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#include <time.h>
#include "QF/cbuf.h"
#include "QF/cmd.h"
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#include "QF/cvar.h"
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#include "QF/dstring.h"
#include "QF/msg.h"
#include "QF/qendian.h"
#include "QF/sys.h"
#include "QF/va.h"
#include "cl_cam.h"
#include "cl_demo.h"
#include "cl_ents.h"
#include "cl_main.h"
#include "client.h"
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#include "compat.h"
#include "host.h"
#include "qw/pmove.h"
typedef struct {
int frames;
double time;
double fps;
} td_stats_t;
int demo_timeframes_isactive;
int demo_timeframes_index;
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int demotime_cached;
float nextdemotime;
char demoname[1024];
double *demo_timeframes_array;
#define CL_TIMEFRAMES_ARRAYBLOCK 4096
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int timedemo_count;
int timedemo_runs;
td_stats_t *timedemo_data;
static void CL_FinishTimeDemo (void);
static void CL_TimeFrames_DumpLog (void);
static void CL_TimeFrames_AddTimestamp (void);
static void CL_TimeFrames_Reset (void);
cvar_t *demo_speed;
cvar_t *demo_gzip;
cvar_t *demo_quit;
cvar_t *demo_timeframes;
/*
DEMO CODE
When a demo is playing back, all NET_SendMessages are skipped, and
NET_GetMessages are read from the demo file.
Whenever cl.time gets past the last received message, another message is
read from the demo file.
*/
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/*
CL_StopPlayback
Called when a demo file runs out, or the user starts a game
*/
void
CL_StopPlayback (void)
{
if (!cls.demoplayback)
return;
Qclose (cls.demofile);
cls.demofile = NULL;
CL_SetState (ca_disconnected);
cls.demoplayback = 0;
cls.demoplayback2 = 0;
demotime_cached = 0;
net_blocksend = 0;
if (cls.timedemo)
CL_FinishTimeDemo ();
}
/*
CL_WriteDemoCmd
Writes the current user cmd
*/
void
CL_WriteDemoCmd (usercmd_t *pcmd)
{
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byte c;
float fl;
int i;
usercmd_t cmd;
fl = LittleFloat ((float) realtime);
Qwrite (cls.demofile, &fl, sizeof (fl));
c = dem_cmd;
Qwrite (cls.demofile, &c, sizeof (c));
// correct for byte order, bytes don't matter
cmd = *pcmd;
for (i = 0; i < 3; i++)
cmd.angles[i] = LittleFloat (cmd.angles[i]);
cmd.forwardmove = LittleShort (cmd.forwardmove);
cmd.sidemove = LittleShort (cmd.sidemove);
cmd.upmove = LittleShort (cmd.upmove);
Qwrite (cls.demofile, &cmd, sizeof (cmd));
for (i = 0; i < 3; i++) {
fl = LittleFloat (cl.viewangles[i]);
Qwrite (cls.demofile, &fl, 4);
}
Qflush (cls.demofile);
}
/*
CL_WriteDemoMessage
Dumps the current net message, prefixed by the length and view angles
*/
static void
CL_WriteDemoMessage (sizebuf_t *msg)
{
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byte c;
float fl;
int len;
if (!cls.demorecording)
return;
fl = LittleFloat ((float) realtime);
Qwrite (cls.demofile, &fl, sizeof (fl));
c = dem_read;
Qwrite (cls.demofile, &c, sizeof (c));
len = LittleLong (msg->cursize);
Qwrite (cls.demofile, &len, 4);
Qwrite (cls.demofile, msg->data, msg->cursize);
Qflush (cls.demofile);
}
#if 0
static const char *dem_names[] = {
"dem_cmd",
"dem_read",
"dem_set",
"dem_multiple",
"dem_single",
"dem_stats",
"dem_all",
"dem_invalid",
};
#endif
static qboolean
CL_GetDemoMessage (void)
{
byte c, newtime;
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float demotime, f;
static float cached_demotime;
static byte cached_newtime;
int r, i, j, tracknum;
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usercmd_t *pcmd;
if (!cls.demoplayback2)
nextdemotime = realtime;
if (realtime + 1.0 < nextdemotime)
realtime = nextdemotime - 1.0;
nextdemomessage:
// read the time from the packet
newtime = 0;
if (demotime_cached) {
demotime = cached_demotime;
newtime = cached_newtime;
demotime_cached = 0;
} else {
if (cls.demoplayback2) {
Qread (cls.demofile, &newtime, sizeof (newtime));
demotime = cls.basetime + (cls.prevtime + newtime) * 0.001;
} else {
Qread (cls.demofile, &demotime, sizeof (demotime));
demotime = LittleFloat (demotime);
if (!nextdemotime)
realtime = nextdemotime = demotime;
}
}
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// decide if it is time to grab the next message
if (cls.timedemo) {
if (cls.td_lastframe < 0)
cls.td_lastframe = demotime;
else if (demotime > cls.td_lastframe) {
cls.td_lastframe = demotime;
// rewind back to time
demotime_cached = 1;
cached_demotime = demotime;
cached_newtime = newtime;
return 0; // already read this frame's message
}
if (!cls.td_starttime && cls.state == ca_active) {
cls.td_starttime = Sys_DoubleTime ();
cls.td_startframe = host_framecount;
}
realtime = demotime; // warp
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} else if (!cl.paused && cls.state >= ca_onserver) {
// always grab until fully connected
if (!cls.demoplayback2 && realtime + 1.0 < demotime) {
// too far back
realtime = demotime - 1.0;
// rewind back to time
demotime_cached = 1;
cached_demotime = demotime;
cached_newtime = newtime;
return 0;
} else if (realtime < demotime) {
// rewind back to time
demotime_cached = 1;
cached_demotime = demotime;
cached_newtime = newtime;
return 0; // don't need another message yet
}
} else
realtime = demotime; // we're warping
if (realtime - nextdemotime > 0.0001) {
if (nextdemotime != demotime) {
if (cls.demoplayback2) {
cls.netchan.incoming_sequence++;
cls.netchan.incoming_acknowledged++;
cls.netchan.frame_latency = 0;
}
}
}
nextdemotime = demotime;
cls.prevtime += newtime;
if (cls.state < ca_demostart)
Host_Error ("CL_GetDemoMessage: cls.state != ca_active");
// get the msg type
Qread (cls.demofile, &c, sizeof (c));
switch (c & 7) {
case dem_cmd:
// user sent input
net_message->message->cursize = -1;
i = cls.netchan.outgoing_sequence & UPDATE_MASK;
pcmd = &cl.frames[i].cmd;
r = Qread (cls.demofile, pcmd, sizeof (*pcmd));
if (r != sizeof (*pcmd)) {
CL_StopPlayback ();
return 0;
}
// byte order stuff
for (j = 0; j < 3; j++)
pcmd->angles[j] = LittleFloat (pcmd->angles[j]);
pcmd->forwardmove = LittleShort (pcmd->forwardmove);
pcmd->sidemove = LittleShort (pcmd->sidemove);
pcmd->upmove = LittleShort (pcmd->upmove);
cl.frames[i].senttime = demotime;
cl.frames[i].receivedtime = -1; // we haven't gotten a reply yet
cls.netchan.outgoing_sequence++;
for (i = 0; i < 3; i++) {
Qread (cls.demofile, &f, 4);
cl.viewangles[i] = LittleFloat (f);
}
break;
case dem_read:
readit:
// get the next message
Qread (cls.demofile, &net_message->message->cursize, 4);
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net_message->message->cursize = LittleLong
(net_message->message->cursize);
if (net_message->message->cursize > MAX_MSGLEN + 8) //+8 for header
Host_Error ("Demo message > MAX_MSGLEN + 8: %d/%d",
net_message->message->cursize, MAX_MSGLEN + 8);
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r = Qread (cls.demofile, net_message->message->data,
net_message->message->cursize);
if (r != net_message->message->cursize) {
CL_StopPlayback ();
return 0;
}
if (cls.demoplayback2) {
tracknum = Cam_TrackNum ();
if (cls.lasttype == dem_multiple) {
if (tracknum == -1)
goto nextdemomessage;
if (!(cls.lastto & (1 << tracknum)))
goto nextdemomessage;
} else if (cls.lasttype == dem_single) {
if (tracknum == -1 || cls.lastto != spec_track)
goto nextdemomessage;
}
}
break;
case dem_set:
Qread (cls.demofile, &i, 4);
cls.netchan.outgoing_sequence = LittleLong (i);
Qread (cls.demofile, &i, 4);
cls.netchan.incoming_sequence = LittleLong (i);
if (cls.demoplayback2) {
cls.netchan.incoming_acknowledged =
cls.netchan.incoming_sequence;
goto nextdemomessage;
}
break;
case dem_multiple:
r = Qread (cls.demofile, &i, 4);
if (r != 4) {
CL_StopPlayback ();
return 0;
}
cls.lastto = LittleLong (i);
cls.lasttype = dem_multiple;
goto readit;
case dem_single:
cls.lastto = c >> 3;
cls.lasttype = dem_single;
goto readit;
case dem_stats:
cls.lastto = c >> 3;
cls.lasttype = dem_stats;
goto readit;
case dem_all:
cls.lastto = 0;
cls.lasttype = dem_all;
goto readit;
default:
Sys_Printf ("Corrupted demo.\n");
CL_StopPlayback ();
return 0;
}
return 1;
}
/*
CL_GetMessage
Handles recording and playback of demos, on top of NET_ code
*/
qboolean
CL_GetMessage (void)
{
if (cls.demoplayback) {
qboolean ret = CL_GetDemoMessage ();
if (!ret && demo_timeframes_isactive && cls.td_starttime) {
CL_TimeFrames_AddTimestamp ();
}
return ret;
}
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if (!NET_GetPacket ())
return false;
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if (net_packetlog->int_val)
Log_Incoming_Packet (net_message->message->data,
net_message->message->cursize, 1);
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CL_WriteDemoMessage (net_message->message);
return true;
}
/*
CL_Stop_f
stop recording a demo
*/
void
CL_Stop_f (void)
{
if (!cls.demorecording) {
Sys_Printf ("Not recording a demo.\n");
return;
}
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// write a disconnect message to the demo file
SZ_Clear (net_message->message);
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MSG_WriteLong (net_message->message, -1); // -1 sequence means out of band
MSG_WriteByte (net_message->message, svc_disconnect);
MSG_WriteString (net_message->message, "EndOfDemo");
CL_WriteDemoMessage (net_message->message);
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// finish up
Qclose (cls.demofile);
cls.demofile = NULL;
cls.demorecording = false;
Sys_Printf ("Completed demo\n");
}
/*
CL_WriteDemoMessage
Dumps the current net message, prefixed by the length and view angles
*/
static void
CL_WriteRecordDemoMessage (sizebuf_t *msg, int seq)
{
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byte c;
float fl;
int len, i;
if (!cls.demorecording)
return;
fl = LittleFloat ((float) realtime);
Qwrite (cls.demofile, &fl, sizeof (fl));
c = dem_read;
Qwrite (cls.demofile, &c, sizeof (c));
len = LittleLong (msg->cursize + 8);
Qwrite (cls.demofile, &len, 4);
i = LittleLong (seq);
Qwrite (cls.demofile, &i, 4);
Qwrite (cls.demofile, &i, 4);
Qwrite (cls.demofile, msg->data, msg->cursize);
Qflush (cls.demofile);
}
static void
CL_WriteSetDemoMessage (void)
{
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byte c;
float fl;
int len;
if (!cls.demorecording)
return;
fl = LittleFloat ((float) realtime);
Qwrite (cls.demofile, &fl, sizeof (fl));
c = dem_set;
Qwrite (cls.demofile, &c, sizeof (c));
len = LittleLong (cls.netchan.outgoing_sequence);
Qwrite (cls.demofile, &len, 4);
len = LittleLong (cls.netchan.incoming_sequence);
Qwrite (cls.demofile, &len, 4);
Qflush (cls.demofile);
}
void
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CL_Record (const char *argv1)
{
byte buf_data[MAX_MSGLEN + 10]; // + 10 for header
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dstring_t *name;
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char *s;
char timestring[20];
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int n, i, j;
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size_t k;
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int seq = 1;
entity_t *ent;
entity_state_t *es, blankes;
player_info_t *player;
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sizebuf_t buf;
time_t tim;
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if (!argv1) {
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char *mapname;
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// Get time to a useable format
time (&tim);
strftime (timestring, 19, "%Y-%m-%d-%H-%M", localtime (&tim));
// the leading path-name is to be removed from cl.worldmodel->name
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mapname = strdup (QFS_SkipPath (cl.worldmodel->name));
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// the map name is cut off after any "." because this would prevent
// ".qwd" from being appended
for (k = 0; k <= strlen (mapname); k++)
if (mapname[k] == '.')
mapname[k] = '\0';
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name = dstring_new ();
dsprintf (name, "%s/%s-%s", qfs_gamedir->dir.def, timestring, mapname);
free (mapname);
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} else {
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name = dstring_new ();
dsprintf (name, "%s/%s", qfs_gamedir->dir.def, argv1);
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}
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// open the demo file
#ifdef HAVE_ZLIB
if (demo_gzip->int_val) {
QFS_DefaultExtension (name, ".qwd.gz");
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cls.demofile = QFS_WOpen (name->str, demo_gzip->int_val);
} else
#endif
{
QFS_DefaultExtension (name, ".qwd");
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cls.demofile = QFS_WOpen (name->str, 0);
}
if (!cls.demofile) {
Sys_Printf ("ERROR: couldn't open.\n");
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dstring_delete (name);
return;
}
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Sys_Printf ("recording to %s.\n", name->str);
dstring_delete (name);
cls.demorecording = true;
/*-------------------------------------------------*/
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// serverdata
// send the info about the new client to all connected clients
memset (&buf, 0, sizeof (buf));
buf.data = buf_data;
buf.maxsize = sizeof (buf_data);
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// send the serverdata
MSG_WriteByte (&buf, svc_serverdata);
MSG_WriteLong (&buf, PROTOCOL_VERSION);
MSG_WriteLong (&buf, cl.servercount);
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MSG_WriteString (&buf, qfs_gamedir->gamedir);
if (cl.spectator)
MSG_WriteByte (&buf, cl.playernum | 128);
else
MSG_WriteByte (&buf, cl.playernum);
// send full levelname
MSG_WriteString (&buf, cl.levelname);
// send the movevars
MSG_WriteFloat (&buf, movevars.gravity);
MSG_WriteFloat (&buf, movevars.stopspeed);
MSG_WriteFloat (&buf, movevars.maxspeed);
MSG_WriteFloat (&buf, movevars.spectatormaxspeed);
MSG_WriteFloat (&buf, movevars.accelerate);
MSG_WriteFloat (&buf, movevars.airaccelerate);
MSG_WriteFloat (&buf, movevars.wateraccelerate);
MSG_WriteFloat (&buf, movevars.friction);
MSG_WriteFloat (&buf, movevars.waterfriction);
MSG_WriteFloat (&buf, movevars.entgravity);
// send music
MSG_WriteByte (&buf, svc_cdtrack);
MSG_WriteByte (&buf, 0); // none in demos
// send server info string
MSG_WriteByte (&buf, svc_stufftext);
MSG_WriteString (&buf, va ("fullserverinfo \"%s\"\n",
Info_MakeString (cl.serverinfo, 0)));
// flush packet
CL_WriteRecordDemoMessage (&buf, seq++);
SZ_Clear (&buf);
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// soundlist
MSG_WriteByte (&buf, svc_soundlist);
MSG_WriteByte (&buf, 0);
n = 0;
s = cl.sound_name[n + 1];
while (*s) {
MSG_WriteString (&buf, s);
if (buf.cursize > MAX_MSGLEN / 2) {
MSG_WriteByte (&buf, 0);
MSG_WriteByte (&buf, n);
CL_WriteRecordDemoMessage (&buf, seq++);
SZ_Clear (&buf);
MSG_WriteByte (&buf, svc_soundlist);
MSG_WriteByte (&buf, n + 1);
}
n++;
s = cl.sound_name[n + 1];
}
if (buf.cursize) {
MSG_WriteByte (&buf, 0);
MSG_WriteByte (&buf, 0);
CL_WriteRecordDemoMessage (&buf, seq++);
SZ_Clear (&buf);
}
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// modellist
MSG_WriteByte (&buf, svc_modellist);
MSG_WriteByte (&buf, 0);
n = 0;
s = cl.model_name[n + 1];
while (*s) {
MSG_WriteString (&buf, s);
if (buf.cursize > MAX_MSGLEN / 2) {
MSG_WriteByte (&buf, 0);
MSG_WriteByte (&buf, n);
CL_WriteRecordDemoMessage (&buf, seq++);
SZ_Clear (&buf);
MSG_WriteByte (&buf, svc_modellist);
MSG_WriteByte (&buf, n + 1);
}
n++;
s = cl.model_name[n + 1];
}
if (buf.cursize) {
MSG_WriteByte (&buf, 0);
MSG_WriteByte (&buf, 0);
CL_WriteRecordDemoMessage (&buf, seq++);
SZ_Clear (&buf);
}
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// spawnstatic
for (i = 0; i < cl.num_statics; i++) {
ent = cl_static_entities + i;
MSG_WriteByte (&buf, svc_spawnstatic);
for (j = 1; j < MAX_MODELS; j++)
if (ent->model == cl.model_precache[j])
break;
if (j == MAX_MODELS)
MSG_WriteByte (&buf, 0);
else
MSG_WriteByte (&buf, j);
MSG_WriteByte (&buf, ent->frame);
MSG_WriteByte (&buf, 0);
MSG_WriteByte (&buf, ent->skinnum);
MSG_WriteCoordAngleV (&buf, ent->origin, ent->angles);
if (buf.cursize > MAX_MSGLEN / 2) {
CL_WriteRecordDemoMessage (&buf, seq++);
SZ_Clear (&buf);
}
}
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// spawnstaticsound
// static sounds are skipped in demos, life is hard
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// baselines
memset (&blankes, 0, sizeof (blankes));
for (i = 0; i < MAX_EDICTS; i++) {
es = cl_baselines + i;
if (memcmp (es, &blankes, sizeof (blankes))) {
MSG_WriteByte (&buf, svc_spawnbaseline);
MSG_WriteShort (&buf, i);
MSG_WriteByte (&buf, es->modelindex);
MSG_WriteByte (&buf, es->frame);
MSG_WriteByte (&buf, es->colormap);
MSG_WriteByte (&buf, es->skinnum);
MSG_WriteCoordAngleV (&buf, es->origin, es->angles);
if (buf.cursize > MAX_MSGLEN / 2) {
CL_WriteRecordDemoMessage (&buf, seq++);
SZ_Clear (&buf);
}
}
}
MSG_WriteByte (&buf, svc_stufftext);
MSG_WriteString (&buf, va ("cmd spawn %i 0\n", cl.servercount));
if (buf.cursize) {
CL_WriteRecordDemoMessage (&buf, seq++);
SZ_Clear (&buf);
}
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// send current status of all other players
for (i = 0; i < MAX_CLIENTS; i++) {
player = cl.players + i;
if (!player->userinfo)
continue;
MSG_WriteByte (&buf, svc_updatefrags);
MSG_WriteByte (&buf, i);
MSG_WriteShort (&buf, player->frags);
MSG_WriteByte (&buf, svc_updateping);
MSG_WriteByte (&buf, i);
MSG_WriteShort (&buf, player->ping);
MSG_WriteByte (&buf, svc_updatepl);
MSG_WriteByte (&buf, i);
MSG_WriteByte (&buf, player->pl);
MSG_WriteByte (&buf, svc_updateentertime);
MSG_WriteByte (&buf, i);
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MSG_WriteFloat (&buf, realtime - player->entertime);
MSG_WriteByte (&buf, svc_updateuserinfo);
MSG_WriteByte (&buf, i);
MSG_WriteLong (&buf, player->userid);
MSG_WriteString (&buf, Info_MakeString (player->userinfo, 0));
if (buf.cursize > MAX_MSGLEN / 2) {
CL_WriteRecordDemoMessage (&buf, seq++);
SZ_Clear (&buf);
}
}
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// send all current light styles
for (i = 0; i < MAX_LIGHTSTYLES; i++) {
MSG_WriteByte (&buf, svc_lightstyle);
MSG_WriteByte (&buf, (char) i);
MSG_WriteString (&buf, r_lightstyle[i].map);
}
for (i = 0; i < MAX_CL_STATS; i++) {
MSG_WriteByte (&buf, svc_updatestatlong);
MSG_WriteByte (&buf, i);
MSG_WriteLong (&buf, cl.stats[i]);
if (buf.cursize > MAX_MSGLEN / 2) {
CL_WriteRecordDemoMessage (&buf, seq++);
SZ_Clear (&buf);
}
}
#if 0
MSG_WriteByte (&buf, svc_updatestatlong);
MSG_WriteByte (&buf, STAT_TOTALMONSTERS);
MSG_WriteLong (&buf, cl.stats[STAT_TOTALMONSTERS]);
MSG_WriteByte (&buf, svc_updatestatlong);
MSG_WriteByte (&buf, STAT_SECRETS);
MSG_WriteLong (&buf, cl.stats[STAT_SECRETS]);
MSG_WriteByte (&buf, svc_updatestatlong);
MSG_WriteByte (&buf, STAT_MONSTERS);
MSG_WriteLong (&buf, cl.stats[STAT_MONSTERS]);
#endif
// get the client to check and download skins
// when that is completed, a begin command will be issued
MSG_WriteByte (&buf, svc_stufftext);
MSG_WriteString (&buf, va ("skins\n"));
CL_WriteRecordDemoMessage (&buf, seq++);
CL_WriteSetDemoMessage ();
// done
}
/*
CL_Record_f
record <demoname> <server>
*/
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void
CL_Record_f (void)
{
if (Cmd_Argc () > 2) {
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// we use a demo name like year-month-day-hours-minutes-mapname.qwd
// if there is no argument
Sys_Printf ("record [demoname]\n");
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return;
}
if (cls.demoplayback || cls.state != ca_active) {
Sys_Printf ("You must be connected to record.\n");
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return;
}
if (cls.demorecording)
CL_Stop_f ();
if (Cmd_Argc () == 2)
CL_Record (Cmd_Argv (1));
else
CL_Record (0);
}
/*
CL_ReRecord_f
record <demoname>
*/
void
CL_ReRecord_f (void)
{
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dstring_t *name;
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int c;
c = Cmd_Argc ();
if (c != 2) {
Sys_Printf ("rerecord <demoname>\n");
return;
}
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if (!cls.servername || !cls.servername->str) {
Sys_Printf ("No server to which to reconnect...\n");
return;
}
if (cls.demorecording)
CL_Stop_f ();
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name = dstring_newstr ();
dsprintf (name, "%s/%s", qfs_gamedir->dir.def, Cmd_Argv (1));
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// open the demo file
QFS_DefaultExtension (name, ".qwd");
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cls.demofile = QFS_WOpen (name->str, 0);
if (!cls.demofile) {
Sys_Printf ("ERROR: couldn't open.\n");
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} else {
Sys_Printf ("recording to %s.\n", name->str);
cls.demorecording = true;
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CL_Disconnect ();
CL_BeginServerConnect ();
}
dstring_delete (name);
}
static void
CL_StartDemo (void)
{
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dstring_t *name = dstring_newstr ();
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// open the demo file
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dstring_copystr (name, demoname);
QFS_DefaultExtension (name, ".qwd");
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Sys_Printf ("Playing demo from %s.\n", name->str);
QFS_FOpenFile (name->str, &cls.demofile);
if (!cls.demofile) {
Sys_Printf ("ERROR: couldn't open.\n");
cls.demonum = -1; // stop demo loop
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dstring_delete (name);
return;
}
cls.demoplayback = true;
net_blocksend = 1;
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if (strequal (QFS_FileExtension (name->str), ".mvd")) {
cls.demoplayback2 = true;
Sys_Printf ("mvd\n");
} else {
Sys_Printf ("qwd\n");
}
CL_SetState (ca_demostart);
Netchan_Setup (&cls.netchan, net_from, 0, NC_SEND_QPORT);
realtime = 0;
cls.findtrack = true;
cls.lasttype = 0;
cls.lastto = 0;
cls.prevtime = 0;
cls.basetime = 0;
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demotime_cached = 0;
nextdemotime = 0;
CL_ClearPredict ();
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dstring_delete (name);
}
/*
CL_PlayDemo_f
play [demoname]
*/
void
CL_PlayDemo_f (void)
{
if (Cmd_Argc () != 2) {
Sys_Printf ("play <demoname> : plays a demo\n");
return;
}
timedemo_runs = timedemo_count = 1; // make sure looped timedemos stop
// disconnect from server
CL_Disconnect ();
strncpy (demoname, Cmd_Argv (1), sizeof (demoname));
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CL_StartDemo ();
}
static void
CL_StartTimeDemo (void)
{
CL_StartDemo ();
if (cls.state != ca_demostart)
return;
// cls.td_starttime will be grabbed at the second frame of the demo, so
// all the loading time doesn't get counted
cls.timedemo = true;
cls.td_starttime = 0;
cls.td_startframe = host_framecount;
cls.td_lastframe = -1; // get a new message this frame
CL_TimeFrames_Reset ();
if (demo_timeframes->int_val)
demo_timeframes_isactive = 1;
}
static inline double
sqr (double x)
{
return x * x;
}
static void
CL_FinishTimeDemo (void)
{
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float time;
int frames;
cls.timedemo = false;
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// the first frame didn't count
frames = (host_framecount - cls.td_startframe) - 1;
time = Sys_DoubleTime () - cls.td_starttime;
if (!time)
time = 1;
Sys_Printf ("%i frame%s %.4g seconds %.4g fps\n", frames,
frames == 1 ? "" : "s", time, frames / time);
CL_TimeFrames_DumpLog ();
demo_timeframes_isactive = 0;
timedemo_count--;
timedemo_data[timedemo_count].frames = time;
timedemo_data[timedemo_count].time = time;
timedemo_data[timedemo_count].fps = frames / time;
if (timedemo_count > 0) {
CL_StartTimeDemo ();
} else {
if (--timedemo_runs > 0) {
double average = 0;
double variance = 0;
double min, max;
int i;
min = max = timedemo_data[0].fps;
for (i = 0; i < timedemo_runs; i++) {
average += timedemo_data[i].fps;
min = min (min, timedemo_data[i].fps);
max = max (max, timedemo_data[i].fps);
}
average /= timedemo_runs;
for (i = 0; i < timedemo_runs; i++)
variance += sqr (timedemo_data[i].fps - average);
variance /= timedemo_runs;
Sys_Printf ("timedemo stats for %d runs:\n", timedemo_runs);
Sys_Printf (" average fps: %.3f\n", average);
Sys_Printf (" min/max fps: %.3f/%.3f\n", min, max);
Sys_Printf ("std deviation: %.3f fps\n", sqrt (variance));
}
free (timedemo_data);
timedemo_data = 0;
if (demo_quit->int_val)
Cbuf_InsertText (cl_cbuf, "quit\n");
}
}
/*
CL_TimeDemo_f
timedemo [demoname]
*/
void
CL_TimeDemo_f (void)
{
if (Cmd_Argc () < 2 || Cmd_Argc () > 3) {
Sys_Printf ("timedemo <demoname> [count]: gets demo speeds\n");
return;
}
timedemo_runs = timedemo_count = 1; // make sure looped timedemos stop
// disconnect from server
CL_Disconnect ();
if (Cmd_Argc () == 3) {
timedemo_count = atoi (Cmd_Argv (2));
} else {
timedemo_count = 1;
}
timedemo_runs = timedemo_count = max (timedemo_count, 1);
if (timedemo_data)
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free (timedemo_data);
timedemo_data = calloc (timedemo_runs, sizeof (td_stats_t));
strncpy (demoname, Cmd_Argv (1), sizeof (demoname));
CL_StartTimeDemo ();
}
void
CL_Demo_Init (void)
{
demo_timeframes_isactive = 0;
demo_timeframes_index = 0;
demo_timeframes_array = NULL;
demo_gzip = Cvar_Get ("demo_gzip", "0", CVAR_ARCHIVE, NULL,
"Compress demos using gzip. 0 = none, 1 = least "
"compression, 9 = most compression. Compressed "
" demos (1-9) will have .gz appended to the name");
demo_speed = Cvar_Get ("demo_speed", "1.0", CVAR_NONE, NULL,
"adjust demo playback speed. 1.0 = normal, "
"< 1 slow-mo, > 1 timelapse");
demo_quit = Cvar_Get ("demo_quit", "0", CVAR_NONE, NULL,
"automaticly quit after a timedemo has finished");
demo_timeframes = Cvar_Get ("demo_timeframes", "0", CVAR_NONE, NULL,
"write timestamps for every frame");
}
static void
CL_TimeFrames_Reset (void)
{
demo_timeframes_index = 0;
free (demo_timeframes_array);
demo_timeframes_array = NULL;
}
static void
CL_TimeFrames_AddTimestamp (void)
{
if (!(demo_timeframes_index % CL_TIMEFRAMES_ARRAYBLOCK))
demo_timeframes_array = realloc
(demo_timeframes_array, sizeof (demo_timeframes_array[0]) *
((demo_timeframes_index / CL_TIMEFRAMES_ARRAYBLOCK) + 1) *
CL_TIMEFRAMES_ARRAYBLOCK);
if (demo_timeframes_array == NULL)
Sys_Error ("Unable to allocate timeframes buffer");
demo_timeframes_array[demo_timeframes_index] = Sys_DoubleTime ();
demo_timeframes_index++;
}
static void
CL_TimeFrames_DumpLog (void)
{
const char *filename = "timeframes.txt";
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int i;
long frame;
QFile *outputfile;
if (demo_timeframes_isactive == 0)
return;
Sys_Printf ("Dumping Timed Frames log: %s\n", filename);
outputfile = QFS_Open (filename, "w");
if (!outputfile) {
Sys_Printf ("Could not open: %s\n", filename);
return;
}
for (i = 1; i < demo_timeframes_index; i++) {
frame = (demo_timeframes_array[i] - demo_timeframes_array[i - 1]) * 1e6;
Qprintf (outputfile, "%09ld\n", frame);
}
Qclose (outputfile);
}