cl_demo.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20
  21 #include "quakedef.h"
  22
  23 int old_vsync = 0;
  24
  25 void CL_FinishTimeDemo (void);
  26
  27 /*
  28 ==============================================================================
  29
  30 DEMO CODE
  31
  32 When a demo is playing back, all outgoing network messages are skipped, and
  33 incoming messages are read from the demo file.
  34
  35 Whenever cl.time gets past the last received message, another message is
  36 read from the demo file.
  37 ==============================================================================
  38 */
  39
  40 /*
  41 =====================
  42 CL_NextDemo
  43
  44 Called to play the next demo in the demo loop
  45 =====================
  46 */
  47 void CL_NextDemo (void)
  48 {
  49         char    str[MAX_INPUTLINE];
  50
  51         if (cls.demonum == -1)
  52                 return;         // don't play demos
  53
  54         if (!cls.demos[cls.demonum][0] || cls.demonum == MAX_DEMOS)
  55         {
  56                 cls.demonum = 0;
  57                 if (!cls.demos[cls.demonum][0])
  58                 {
  59                         Con_Print("No demos listed with startdemos\n");
  60                         cls.demonum = -1;
  61                         return;
  62                 }
  63         }
  64
  65         sprintf (str,"playdemo %s\n", cls.demos[cls.demonum]);
  66         Cbuf_InsertText (str);
  67         cls.demonum++;
  68 }
  69
  70 /*
  71 ==============
  72 CL_StopPlayback
  73
  74 Called when a demo file runs out, or the user starts a game
  75 ==============
  76 */
  77 // LordHavoc: now called only by CL_Disconnect
  78 void CL_StopPlayback (void)
  79 {
  80         if (!cls.demoplayback)
  81                 return;
  82
  83         FS_Close (cls.demofile);
  84         cls.demoplayback = false;
  85         cls.demofile = NULL;
  86
  87         if (cls.timedemo)
  88                 CL_FinishTimeDemo ();
  89
  90         if (COM_CheckParm("-demo") || COM_CheckParm("-demolooponly"))
  91                 Host_Quit_f();
  92
  93 }
  94
  95 /*
  96 ====================
  97 CL_WriteDemoMessage
  98
  99 Dumps the current net message, prefixed by the length and view angles
 100 ====================
 101 */
 102 void CL_WriteDemoMessage (void)
 103 {
 104         int             len;
 105         int             i;
 106         float   f;
 107
 108         if (cls.demopaused) // LordHavoc: pausedemo
 109                 return;
 110
 111         len = LittleLong (net_message.cursize);
 112         FS_Write (cls.demofile, &len, 4);
 113         for (i=0 ; i<3 ; i++)
 114         {
 115                 f = LittleFloat (cl.viewangles[i]);
 116                 FS_Write (cls.demofile, &f, 4);
 117         }
 118         FS_Write (cls.demofile, net_message.data, net_message.cursize);
 119 }
 120
 121 /*
 122 ====================
 123 CL_ReadDemoMessage
 124
 125 Handles playback of demos
 126 ====================
 127 */
 128 void CL_ReadDemoMessage(void)
 129 {
 130         int r, i;
 131         float f;
 132
 133         if (!cls.demoplayback)
 134                 return;
 135
 136         // LordHavoc: pausedemo
 137         if (cls.demopaused)
 138                 return;
 139
 140         while (1)
 141         {
 142                 // decide if it is time to grab the next message
 143                 // always grab until fully connected
 144                 if (cls.signon == SIGNONS)
 145                 {
 146                         if (cls.timedemo)
 147                         {
 148                                 if (host_framecount == cls.td_lastframe)
 149                                 {
 150                                         // already read this frame's message
 151                                         return;
 152                                 }
 153                                 if (cls.td_lastframe == -1)
 154                                 {
 155                                         // we start counting on the second frame
 156                                         // (after parsing connection stuff)
 157                                         cls.td_startframe = host_framecount + 1;
 158                                 }
 159                                 cls.td_lastframe = host_framecount;
 160                                 cls.td_onesecondframes++;
 161                                 // if this is the first official frame we can now grab the real
 162                                 // td_starttime so the bogus time on the first frame doesn't
 163                                 // count against the final report
 164                                 if (host_framecount == cls.td_startframe)
 165                                 {
 166                                         cls.td_starttime = realtime;
 167                                         cls.td_onesecondnexttime = realtime + 1;
 168                                         cls.td_onesecondframes = 0;
 169                                         cls.td_onesecondminframes = 0;
 170                                         cls.td_onesecondmaxframes = 0;
 171                                         cls.td_onesecondavgframes = 0;
 172                                         cls.td_onesecondavgcount = 0;
 173                                 }
 174                                 if (realtime >= cls.td_onesecondnexttime)
 175                                 {
 176                                         if (cls.td_onesecondavgcount == 0)
 177                                         {
 178                                                 cls.td_onesecondminframes = cls.td_onesecondframes;
 179                                                 cls.td_onesecondmaxframes = cls.td_onesecondframes;
 180                                         }
 181                                         cls.td_onesecondminframes = min(cls.td_onesecondminframes, cls.td_onesecondframes);
 182                                         cls.td_onesecondmaxframes = max(cls.td_onesecondmaxframes, cls.td_onesecondframes);
 183                                         cls.td_onesecondavgframes += cls.td_onesecondframes;
 184                                         cls.td_onesecondavgcount++;
 185                                         cls.td_onesecondframes = 0;
 186                                         cls.td_onesecondnexttime++;
 187                                 }
 188                         }
 189                         else if (cl.time <= cl.mtime[0])
 190                         {
 191                                 // don't need another message yet
 192                                 return;
 193                         }
 194                 }
 195
 196                 // get the next message
 197                 FS_Read(cls.demofile, &net_message.cursize, 4);
 198                 net_message.cursize = LittleLong(net_message.cursize);
 199                 if (net_message.cursize > net_message.maxsize)
 200                         Host_Error("Demo message (%i) > net_message.maxsize (%i)", net_message.cursize, net_message.maxsize);
 201                 VectorCopy(cl.mviewangles[0], cl.mviewangles[1]);
 202                 for (i = 0;i < 3;i++)
 203                 {
 204                         r = (int)FS_Read(cls.demofile, &f, 4);
 205                         cl.mviewangles[0][i] = LittleFloat(f);
 206                 }
 207
 208                 if (FS_Read(cls.demofile, net_message.data, net_message.cursize) == net_message.cursize)
 209                 {
 210                         MSG_BeginReading();
 211                         CL_ParseServerMessage();
 212
 213                         // In case the demo contains a "svc_disconnect" message
 214                         if (!cls.demoplayback)
 215                                 return;
 216                 }
 217                 else
 218                 {
 219                         CL_Disconnect();
 220                         return;
 221                 }
 222         }
 223 }
 224
 225
 226 /*
 227 ====================
 228 CL_Stop_f
 229
 230 stop recording a demo
 231 ====================
 232 */
 233 void CL_Stop_f (void)
 234 {
 235         if (!cls.demorecording)
 236         {
 237                 Con_Print("Not recording a demo.\n");
 238                 return;
 239         }
 240
 241 // write a disconnect message to the demo file
 242         SZ_Clear (&net_message);
 243         MSG_WriteByte (&net_message, svc_disconnect);
 244         CL_WriteDemoMessage ();
 245
 246 // finish up
 247         FS_Close (cls.demofile);
 248         cls.demofile = NULL;
 249         cls.demorecording = false;
 250         Con_Print("Completed demo\n");
 251 }
 252
 253 /*
 254 ====================
 255 CL_Record_f
 256
 257 record <demoname> <map> [cd track]
 258 ====================
 259 */
 260 void CL_Record_f (void)
 261 {
 262         int c, track;
 263         char name[MAX_OSPATH];
 264
 265         c = Cmd_Argc();
 266         if (c != 2 && c != 3 && c != 4)
 267         {
 268                 Con_Print("record <demoname> [<map> [cd track]]\n");
 269                 return;
 270         }
 271
 272         if (strstr(Cmd_Argv(1), ".."))
 273         {
 274                 Con_Print("Relative pathnames are not allowed.\n");
 275                 return;
 276         }
 277
 278         if (c == 2 && cls.state == ca_connected)
 279         {
 280                 Con_Print("Can not record - already connected to server\nClient demo recording must be started before connecting\n");
 281                 return;
 282         }
 283
 284         if (cls.state == ca_connected)
 285                 CL_Disconnect();
 286
 287         // write the forced cd track number, or -1
 288         if (c == 4)
 289         {
 290                 track = atoi(Cmd_Argv(3));
 291                 Con_Printf("Forcing CD track to %i\n", cls.forcetrack);
 292         }
 293         else
 294                 track = -1;
 295
 296         // get the demo name
 297         strlcpy (name, Cmd_Argv(1), sizeof (name));
 298         FS_DefaultExtension (name, ".dem", sizeof (name));
 299
 300         // start the map up
 301         if (c > 2)
 302                 Cmd_ExecuteString ( va("map %s", Cmd_Argv(2)), src_command);
 303
 304         // open the demo file
 305         Con_Printf("recording to %s.\n", name);
 306         cls.demofile = FS_Open (name, "wb", false, false);
 307         if (!cls.demofile)
 308         {
 309                 Con_Print("ERROR: couldn't open.\n");
 310                 return;
 311         }
 312
 313         cls.forcetrack = track;
 314         FS_Printf(cls.demofile, "%i\n", cls.forcetrack);
 315
 316         cls.demorecording = true;
 317 }
 318
 319
 320 /*
 321 ====================
 322 CL_PlayDemo_f
 323
 324 play [demoname]
 325 ====================
 326 */
 327 void CL_PlayDemo_f (void)
 328 {
 329         char    name[MAX_QPATH];
 330         int c;
 331         qboolean neg = false;
 332
 333         if (Cmd_Argc() != 2)
 334         {
 335                 Con_Print("play <demoname> : plays a demo\n");
 336                 return;
 337         }
 338
 339         // disconnect from server
 340         CL_Disconnect ();
 341         Host_ShutdownServer ();
 342
 343         // update networking ports (this is mainly just needed at startup)
 344         NetConn_UpdateSockets();
 345
 346         // open the demo file
 347         strlcpy (name, Cmd_Argv(1), sizeof (name));
 348         FS_DefaultExtension (name, ".dem", sizeof (name));
 349         cls.protocol = PROTOCOL_QUAKE;
 350
 351         Con_Printf("Playing demo from %s.\n", name);
 352         cls.demofile = FS_Open (name, "rb", false, false);
 353         if (!cls.demofile)
 354         {
 355                 Con_Print("ERROR: couldn't open.\n");
 356                 cls.demonum = -1;               // stop demo loop
 357                 return;
 358         }
 359
 360         strlcpy(cls.demoname, name, sizeof(cls.demoname));
 361         cls.demoplayback = true;
 362         cls.state = ca_connected;
 363         cls.forcetrack = 0;
 364
 365         while ((c = FS_Getc (cls.demofile)) != '\n')
 366                 if (c == '-')
 367                         neg = true;
 368                 else
 369                         cls.forcetrack = cls.forcetrack * 10 + (c - '0');
 370
 371         if (neg)
 372                 cls.forcetrack = -cls.forcetrack;
 373 }
 374
 375 /*
 376 ====================
 377 CL_FinishTimeDemo
 378
 379 ====================
 380 */
 381 void CL_FinishTimeDemo (void)
 382 {
 383         int frames;
 384         double time, totalfpsavg;
 385         double fpsmin, fpsavg, fpsmax; // report min/avg/max fps
 386
 387         cls.timedemo = false;
 388
 389 // the first frame didn't count
 390         frames = (host_framecount - cls.td_startframe) - 1;
 391         time = realtime - cls.td_starttime;
 392         totalfpsavg = time > 0 ? frames / time : 0;
 393         fpsmin = cls.td_onesecondminframes;
 394         fpsavg = cls.td_onesecondavgcount ? cls.td_onesecondavgframes / cls.td_onesecondavgcount : 0;
 395         fpsmax = cls.td_onesecondmaxframes;
 396         // LordHavoc: timedemo now prints out 7 digits of fraction, and min/avg/max
 397         Con_Printf("%i frames %5.7f seconds %5.7f fps, one-second min/avg/max: %.0f %.0f %.0f\n", frames, time, totalfpsavg, fpsmin, fpsavg, fpsmax);
 398         Log_Printf("benchmark.log", "date %s | enginedate %s | demo %s | commandline %s | result %i frames %5.7f seconds %5.7f fps, one-second min/avg/max: %.0f %.0f %.0f\n", Sys_TimeString("%Y-%m-%d %H:%M:%S"), buildstring, cls.demoname, cmdline.string, frames, time, totalfpsavg, fpsmin, fpsavg, fpsmax);
 399         if (COM_CheckParm("-benchmark"))
 400                 Host_Quit_f();
 401 }
 402
 403 /*
 404 ====================
 405 CL_TimeDemo_f
 406
 407 timedemo [demoname]
 408 ====================
 409 */
 410 void CL_TimeDemo_f (void)
 411 {
 412         if (Cmd_Argc() != 2)
 413         {
 414                 Con_Print("timedemo <demoname> : gets demo speeds\n");
 415                 return;
 416         }
 417
 418         CL_PlayDemo_f ();
 419
 420 // cls.td_starttime will be grabbed at the second frame of the demo, so
 421 // all the loading time doesn't get counted
 422
 423         // instantly hide console and deactivate it
 424         key_dest = key_game;
 425         key_consoleactive = 0;
 426         scr_con_current = 0;
 427
 428         cls.timedemo = true;
 429         // get first message this frame
 430         cls.td_lastframe = -1;
 431 }
 432