samples/quake/jni/cl_demo.cpp - platform/gdk - Git at Google

 /*
 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 the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

 */

 #include "quakedef.h"

 void CL_FinishTimeDemo (void);

 /*
 ==============================================================================

 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.
 ==============================================================================
 */

 /*
 ==============
 CL_StopPlayback

 Called when a demo file runs out, or the user starts a game
 ==============
 */
 void CL_StopPlayback (void)
 {
     if (!cls.demoplayback)
         return;

     fclose (cls.demofile);
     cls.demoplayback = false;
     cls.demofile = NULL;
     cls.state = ca_disconnected;

     if (cls.timedemo)
         CL_FinishTimeDemo ();
 }

 /*
 ====================
 CL_WriteDemoMessage

 Dumps the current net message, prefixed by the length and view angles
 ====================
 */
 void CL_WriteDemoMessage (void)
 {
     int        len;
     int        i;
     float    f;

     len = LittleLong (net_message.cursize);
     fwrite (&len, 4, 1, cls.demofile);
     for (i=0 ; i<3 ; i++)
     {
         f = LittleFloat (cl.viewangles[i]);
         fwrite (&f, 4, 1, cls.demofile);
     }
     fwrite (net_message.data, net_message.cursize, 1, cls.demofile);
     fflush (cls.demofile);
 }

 /*
 ====================
 CL_GetMessage

 Handles recording and playback of demos, on top of NET_ code
 ====================
 */
 int CL_GetMessage (void)
 {
     int        r, i;
     float    f;

     if    (cls.demoplayback)
     {
     // decide if it is time to grab the next message
         if (cls.signon == SIGNONS)    // allways grab until fully connected
         {
             if (cls.timedemo)
             {
                 if (host_framecount == cls.td_lastframe)
                     return 0;        // allready read this frame's message
                 cls.td_lastframe = host_framecount;
             // if this is the second frame, grab the real td_starttime
             // so the bogus time on the first frame doesn't count
                 if (host_framecount == cls.td_startframe + 1)
                     cls.td_starttime = realtime;
             }
             else if ( /* cl.time > 0 && */ cl.time <= cl.mtime[0])
             {
                     return 0;        // don't need another message yet
             }
         }

     // get the next message
         fread (&net_message.cursize, 4, 1, cls.demofile);
         VectorCopy (cl.mviewangles[0], cl.mviewangles[1]);
         for (i=0 ; i<3 ; i++)
         {
             r = fread (&f, 4, 1, cls.demofile);
             cl.mviewangles[0][i] = LittleFloat (f);
         }

         net_message.cursize = LittleLong (net_message.cursize);
         if (net_message.cursize > MAX_MSGLEN)
             Sys_Error ("Demo message > MAX_MSGLEN");
         r = fread (net_message.data, net_message.cursize, 1, cls.demofile);
         if (r != 1)
         {
             CL_StopPlayback ();
             return 0;
         }

         return 1;
     }

     while (1)
     {
         r = NET_GetMessage (cls.netcon);

         if (r != 1 && r != 2)
             return r;

     // discard nop keepalive message
         if (net_message.cursize == 1 && net_message.data[0] == svc_nop)
             Con_Printf ("<-- server to client keepalive\n");
         else
             break;
     }

     if (cls.demorecording)
         CL_WriteDemoMessage ();

     return r;
 }


 /*
 ====================
 CL_Stop_f

 stop recording a demo
 ====================
 */
 void CL_Stop_f (void)
 {
     if (cmd_source != src_command)
         return;

     if (!cls.demorecording)
     {
         Con_Printf ("Not recording a demo.\n");
         return;
     }

 // write a disconnect message to the demo file
     SZ_Clear (&net_message);
     MSG_WriteByte (&net_message, svc_disconnect);
     CL_WriteDemoMessage ();

 // finish up
     fclose (cls.demofile);
     cls.demofile = NULL;
     cls.demorecording = false;
     Con_Printf ("Completed demo\n");
 }

 /*
 ====================
 CL_Record_f

 record <demoname> <map> [cd track]
 ====================
 */
 void CL_Record_f (void)
 {
     int        c;
     char    name[MAX_OSPATH];
     int        track;

     if (cmd_source != src_command)
         return;

     c = Cmd_Argc();
     if (c != 2 && c != 3 && c != 4)
     {
         Con_Printf ("record <demoname> [<map> [cd track]]\n");
         return;
     }

     if (strstr(Cmd_Argv(1), ".."))
     {
         Con_Printf ("Relative pathnames are not allowed.\n");
         return;
     }

     if (c == 2 && cls.state == ca_connected)
     {
         Con_Printf("Can not record - already connected to server\nClient demo recording must be started before connecting\n");
         return;
     }

 // write the forced cd track number, or -1
     if (c == 4)
     {
         track = atoi(Cmd_Argv(3));
         Con_Printf ("Forcing CD track to %i\n", cls.forcetrack);
     }
     else
         track = -1;

     sprintf (name, "%s/%s", com_gamedir, Cmd_Argv(1));

 //
 // start the map up
 //
     if (c > 2)
         Cmd_ExecuteString ( va("map %s", Cmd_Argv(2)), src_command);

 //
 // open the demo file
 //
     COM_DefaultExtension (name, ".dem");

     Con_Printf ("recording to %s.\n", name);
     cls.demofile = fopen (name, "wb");
     if (!cls.demofile)
     {
         Con_Printf ("ERROR: couldn't open.\n");
         return;
     }

     cls.forcetrack = track;
     fprintf (cls.demofile, "%i\n", cls.forcetrack);

     cls.demorecording = true;
 }


 /*
 ====================
 CL_PlayDemo_f

 play [demoname]
 ====================
 */
 void CL_PlayDemo_f (void)
 {
     char    name[256];
     int c;
     qboolean neg = false;

     if (cmd_source != src_command)
         return;

     if (Cmd_Argc() > 2)
     {
         Con_Printf ("play <demoname> : plays a demo\n");
         return;
     }

 //
 // disconnect from server
 //
     CL_Disconnect ();

 //
 // open the demo file
 //
     const char* cmdName = "demo1";
     if (Cmd_Argc() == 2) {
         cmdName = Cmd_Argv(1);
     }
     strcpy (name, cmdName);
     COM_DefaultExtension (name, ".dem");

     Con_Printf ("Playing demo from %s.\n", name);
     COM_FOpenFile (name, &cls.demofile);
     if (!cls.demofile)
     {
         Con_Printf ("ERROR: couldn't open.\n");
         cls.demonum = -1;        // stop demo loop
         return;
     }

     cls.demoplayback = true;
     cls.state = ca_connected;
     cls.forcetrack = 0;

     while ((c = getc(cls.demofile)) != '\n')
         if (c == '-')
             neg = true;
         else
             cls.forcetrack = cls.forcetrack * 10 + (c - '0');

     if (neg)
         cls.forcetrack = -cls.forcetrack;
 // ZOID, fscanf is evil
 //    fscanf (cls.demofile, "%i\n", &cls.forcetrack);
 }

 // The timedemo numbers are very important to testing, so log them even if normal console printing is disabled.

 #define LOGANDPRINT(ARGS) Con_Printf ARGS ; PMPLOG(ARGS)

 /*
 ====================
 CL_FinishTimeDemo

 ====================
 */
 void CL_FinishTimeDemo (void)
 {
     int        frames;
     float    time;

     cls.timedemo = false;

 // the first frame didn't count
     frames = (host_framecount - cls.td_startframe) - 1;
     time = realtime - cls.td_starttime;
     if (!time)
         time = 1;
     LOGANDPRINT(("%i frames %5.3f seconds %5.3f fps\n", frames, time, frames/time));
     if (frames > 0)
     {
         LOGANDPRINT(("Fastest: %5.1f ms on frame %d\n", fastestFrame.time * 1000.0, fastestFrame.frame));
         LOGANDPRINT(("Average: %5.1f ms\n", (time / frames) * 1000.0));
         LOGANDPRINT(("Slowest: %5.1f ms on frame %d\n", slowestFrame.time * 1000.0, slowestFrame.frame));
     }
 }

 /*
 ====================
 CL_TimeDemo_f

 timedemo [demoname]
 ====================
 */
 void CL_TimeDemo_f (void)
 {
     if (cmd_source != src_command)
         return;

     if (Cmd_Argc() > 2)
     {
         Con_Printf ("timedemo <demoname> : gets demo speeds\n");
         return;
     }

     CL_PlayDemo_f ();

 // 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_startframe = host_framecount;
     cls.td_lastframe = -1;        // get a new message this frame

     InitFrameTimes();
 }
	/*
	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 the Free Software
	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

	*/

	#include "quakedef.h"

	void CL_FinishTimeDemo (void);

	/*
	==============================================================================

	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.
	==============================================================================
	*/

	/*
	==============
	CL_StopPlayback

	Called when a demo file runs out, or the user starts a game
	==============
	*/
	void CL_StopPlayback (void)
	{
	if (!cls.demoplayback)
	return;

	fclose (cls.demofile);
	cls.demoplayback = false;
	cls.demofile = NULL;
	cls.state = ca_disconnected;

	if (cls.timedemo)
	CL_FinishTimeDemo ();
	}

	/*
	====================
	CL_WriteDemoMessage

	Dumps the current net message, prefixed by the length and view angles
	====================
	*/
	void CL_WriteDemoMessage (void)
	{
	int len;
	int i;
	float f;

	len = LittleLong (net_message.cursize);
	fwrite (&len, 4, 1, cls.demofile);
	for (i=0 ; i<3 ; i++)
	{
	f = LittleFloat (cl.viewangles[i]);
	fwrite (&f, 4, 1, cls.demofile);
	}
	fwrite (net_message.data, net_message.cursize, 1, cls.demofile);
	fflush (cls.demofile);
	}

	/*
	====================
	CL_GetMessage

	Handles recording and playback of demos, on top of NET_ code
	====================
	*/
	int CL_GetMessage (void)
	{
	int r, i;
	float f;

	if (cls.demoplayback)
	{
	// decide if it is time to grab the next message
	if (cls.signon == SIGNONS) // allways grab until fully connected
	{
	if (cls.timedemo)
	{
	if (host_framecount == cls.td_lastframe)
	return 0; // allready read this frame's message
	cls.td_lastframe = host_framecount;
	// if this is the second frame, grab the real td_starttime
	// so the bogus time on the first frame doesn't count
	if (host_framecount == cls.td_startframe + 1)
	cls.td_starttime = realtime;
	}
	else if ( /* cl.time > 0 && */ cl.time <= cl.mtime[0])
	{
	return 0; // don't need another message yet
	}
	}

	// get the next message
	fread (&net_message.cursize, 4, 1, cls.demofile);
	VectorCopy (cl.mviewangles[0], cl.mviewangles[1]);
	for (i=0 ; i<3 ; i++)
	{
	r = fread (&f, 4, 1, cls.demofile);
	cl.mviewangles[0][i] = LittleFloat (f);
	}

	net_message.cursize = LittleLong (net_message.cursize);
	if (net_message.cursize > MAX_MSGLEN)
	Sys_Error ("Demo message > MAX_MSGLEN");
	r = fread (net_message.data, net_message.cursize, 1, cls.demofile);
	if (r != 1)
	{
	CL_StopPlayback ();
	return 0;
	}

	return 1;
	}

	while (1)
	{
	r = NET_GetMessage (cls.netcon);

	if (r != 1 && r != 2)
	return r;

	// discard nop keepalive message
	if (net_message.cursize == 1 && net_message.data[0] == svc_nop)
	Con_Printf ("<-- server to client keepalive\n");
	else
	break;
	}

	if (cls.demorecording)
	CL_WriteDemoMessage ();

	return r;
	}


	/*
	====================
	CL_Stop_f

	stop recording a demo
	====================
	*/
	void CL_Stop_f (void)
	{
	if (cmd_source != src_command)
	return;

	if (!cls.demorecording)
	{
	Con_Printf ("Not recording a demo.\n");
	return;
	}

	// write a disconnect message to the demo file
	SZ_Clear (&net_message);
	MSG_WriteByte (&net_message, svc_disconnect);
	CL_WriteDemoMessage ();

	// finish up
	fclose (cls.demofile);
	cls.demofile = NULL;
	cls.demorecording = false;
	Con_Printf ("Completed demo\n");
	}

	/*
	====================
	CL_Record_f

	record <demoname> <map> [cd track]
	====================
	*/
	void CL_Record_f (void)
	{
	int c;
	char name[MAX_OSPATH];
	int track;

	if (cmd_source != src_command)
	return;

	c = Cmd_Argc();
	if (c != 2 && c != 3 && c != 4)
	{
	Con_Printf ("record <demoname> [<map> [cd track]]\n");
	return;
	}

	if (strstr(Cmd_Argv(1), ".."))
	{
	Con_Printf ("Relative pathnames are not allowed.\n");
	return;
	}

	if (c == 2 && cls.state == ca_connected)
	{
	Con_Printf("Can not record - already connected to server\nClient demo recording must be started before connecting\n");
	return;
	}

	// write the forced cd track number, or -1
	if (c == 4)
	{
	track = atoi(Cmd_Argv(3));
	Con_Printf ("Forcing CD track to %i\n", cls.forcetrack);
	}
	else
	track = -1;

	sprintf (name, "%s/%s", com_gamedir, Cmd_Argv(1));

	//
	// start the map up
	//
	if (c > 2)
	Cmd_ExecuteString ( va("map %s", Cmd_Argv(2)), src_command);

	//
	// open the demo file
	//
	COM_DefaultExtension (name, ".dem");

	Con_Printf ("recording to %s.\n", name);
	cls.demofile = fopen (name, "wb");
	if (!cls.demofile)
	{
	Con_Printf ("ERROR: couldn't open.\n");
	return;
	}

	cls.forcetrack = track;
	fprintf (cls.demofile, "%i\n", cls.forcetrack);

	cls.demorecording = true;
	}


	/*
	====================
	CL_PlayDemo_f

	play [demoname]
	====================
	*/
	void CL_PlayDemo_f (void)
	{
	char name[256];
	int c;
	qboolean neg = false;

	if (cmd_source != src_command)
	return;

	if (Cmd_Argc() > 2)
	{
	Con_Printf ("play <demoname> : plays a demo\n");
	return;
	}

	//
	// disconnect from server
	//
	CL_Disconnect ();

	//
	// open the demo file
	//
	const char* cmdName = "demo1";
	if (Cmd_Argc() == 2) {
	cmdName = Cmd_Argv(1);
	}
	strcpy (name, cmdName);
	COM_DefaultExtension (name, ".dem");

	Con_Printf ("Playing demo from %s.\n", name);
	COM_FOpenFile (name, &cls.demofile);
	if (!cls.demofile)
	{
	Con_Printf ("ERROR: couldn't open.\n");
	cls.demonum = -1; // stop demo loop
	return;
	}

	cls.demoplayback = true;
	cls.state = ca_connected;
	cls.forcetrack = 0;

	while ((c = getc(cls.demofile)) != '\n')
	if (c == '-')
	neg = true;
	else
	cls.forcetrack = cls.forcetrack * 10 + (c - '0');

	if (neg)
	cls.forcetrack = -cls.forcetrack;
	// ZOID, fscanf is evil
	// fscanf (cls.demofile, "%i\n", &cls.forcetrack);
	}

	// The timedemo numbers are very important to testing, so log them even if normal console printing is disabled.

	#define LOGANDPRINT(ARGS) Con_Printf ARGS ; PMPLOG(ARGS)

	/*
	====================
	CL_FinishTimeDemo

	====================
	*/
	void CL_FinishTimeDemo (void)
	{
	int frames;
	float time;

	cls.timedemo = false;

	// the first frame didn't count
	frames = (host_framecount - cls.td_startframe) - 1;
	time = realtime - cls.td_starttime;
	if (!time)
	time = 1;
	LOGANDPRINT(("%i frames %5.3f seconds %5.3f fps\n", frames, time, frames/time));
	if (frames > 0)
	{
	LOGANDPRINT(("Fastest: %5.1f ms on frame %d\n", fastestFrame.time * 1000.0, fastestFrame.frame));
	LOGANDPRINT(("Average: %5.1f ms\n", (time / frames) * 1000.0));
	LOGANDPRINT(("Slowest: %5.1f ms on frame %d\n", slowestFrame.time * 1000.0, slowestFrame.frame));
	}
	}

	/*
	====================
	CL_TimeDemo_f

	timedemo [demoname]
	====================
	*/
	void CL_TimeDemo_f (void)
	{
	if (cmd_source != src_command)
	return;

	if (Cmd_Argc() > 2)
	{
	Con_Printf ("timedemo <demoname> : gets demo speeds\n");
	return;
	}

	CL_PlayDemo_f ();

	// 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_startframe = host_framecount;
	cls.td_lastframe = -1; // get a new message this frame

	InitFrameTimes();
	}