shithub: qk1

ref: 9084a389eba9cd1089560473306b57b418730ef5
dir: /cl_demo.c/

#include <u.h>
#include <libc.h>
#include "dat.h"
#include "quakedef.h"
#include "fns.h"

static void
timedm(void)
{
	int f;
	float t;

	cls.timedemo = 0;
	f = host_framecount - cls.td_startframe - 1;
	t = realtime - cls.td_starttime;
	if(t == 0.0)
		t = 1;
	Con_Printf("%d frames %5.1f seconds %5.1f fps\n", f, t, f / t);
}

void
abortdemo(void)
{
	if(!cls.demoplayback)
		return;
	closedm();
	cls.demoplayback = 0;
	cls.state = ca_disconnected;
	if(cls.timedemo)
		timedm();
}

void
stopdemo(void)
{
	if(cmd_source != src_command)
		return;
	if(!cls.demorecording){
		Con_Printf("stop: no recording in progress\n");
		return;
	}
	SZ_Clear(&net_message);
	MSG_WriteByte(&net_message, svc_disconnect);
	writedm();
	closedm();
	cls.demorecording = 0;
}

static int
dmmsg(void)
{
	if(cls.signon == SIGNONS){
		if(cls.timedemo){
			if(host_framecount == cls.td_lastframe)
				return 0;
			cls.td_lastframe = host_framecount;
			if(host_framecount == cls.td_startframe + 1)
				cls.td_starttime = realtime;
		}else if(cl.time <= cl.mtime[0])
				return 0;
	}
	if(readdm() < 0){
		abortdemo();
		return 0;
	}
	return 1;
}

int
readcl(void)
{
	int r;

	if(cls.demoplayback)
		return dmmsg();
	for(;;){
		r = NET_GetMessage(cls.netcon);
		if(r != 1 && r != 2)
			return r;
		if(net_message.cursize == 1 && net_message.data[0] == svc_nop)
			Con_DPrintf("<-- server to client keepalive\n");
		else
			break;
	}
	if(cls.demorecording)
		writedm();
	return r;
}

void
timedemo(void)
{
	if(cmd_source != src_command)
		return;
	if(Cmd_Argc() != 2){
		Con_Printf("timedemo <demoname> : gets demo speeds\n");
		return;
	}
	playdemo();
	if(cls.demoplayback != 1)
		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 = 1;
	cls.td_startframe = host_framecount;
	cls.td_lastframe = -1;	/* get a new message this frame */
}

void
recdemo(void)
{
	int c, trk;
	char *s, *a;

	if(cmd_source != src_command)
		return;
	c = Cmd_Argc();
	if(c < 2 || c > 4){
		Con_Printf("record <demoname> [<map> [cd track]]\n");
		return;
	}
	trk = -1;
	if(strstr(Cmd_Argv(1), "..") != nil){
		Con_Printf("recdemo: invalid path\n");
		return;
	}else if(c == 2 && cls.state == ca_connected){
		Con_Printf("recdemo: too late, already connected\n");
		return;
	}else if(c == 4)
		trk = atoi(Cmd_Argv(3));
	a = Cmd_Argv(1);
	if(c > 2)
		Cmd_ExecuteString(va("map %s", Cmd_Argv(2)), src_command);
	s = va("%s/%s%s", fsdir, a, ext(a, ".dem"));
	Con_DPrintf("recdemo: writing to file %s\n", s);
	if(opendm(s, trk) < 0){
		Con_Printf(va("recdemo: %r\n"));
		return;
	}
	cls.demorecording = 1;
	cls.forcetrack = trk;	
}

/* 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 lump. */
void
playdemo(void)
{
	char *s, *a;

	if(cmd_source != src_command)
		return;
	if(Cmd_Argc() != 2){
		Con_Printf("playdemo <demo> : plays a demo\n");
		return;
	}
	CL_Disconnect();
	a = Cmd_Argv(1);
	s = va("%s%s", a, ext(a, ".dem"));
	Con_DPrintf("playdemo: reading file %s\n", s);
	if(loaddm(s) < 0){
		Con_Printf(va("playdemo: %r\n"));
		cls.demonum = -1;
		return;
	}
	cls.demoplayback = 1;
	cls.state = ca_connected;
}