quakeforge/qw/source/cl_ngraph.c

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/*
cl_ngraph.c
client network diagnostic graph
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
$Id$
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
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#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include "compat.h"
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#include "QF/cvar.h"
#include "QF/draw.h"
#include "QF/render.h"
#include "cl_parse.h"
#include "client.h"
#include "r_cvar.h" //XXX
#include "sbar.h"
void
CL_NetGraph (int swap)
{
int a, l, x, y, h, i;
int lost;
char st[80];
if (!r_netgraph->int_val)
return;
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a = 0; // shut up gcc
x = swap ? vid.width - (NET_TIMINGS + 16): 0;
y = vid.height - sb_lines - 24 - r_graphheight->int_val - 1;
h = r_graphheight->int_val % 8;
Draw_TextBox (x, y, NET_TIMINGS / 8, r_graphheight->int_val / 8 + 1);
lost = CL_CalcNet ();
x = swap ? vid.width - (NET_TIMINGS + 8) : 8;
y = vid.height - sb_lines - 9;
l = NET_TIMINGS;
if (l > r_refdef.vrect.width - 8)
l = r_refdef.vrect.width - 8;
i = (cls.netchan.outgoing_sequence - a) & NET_TIMINGSMASK;
a = i - l;
if (a < 0) {
R_LineGraph (x, y, &packet_latency[a + NET_TIMINGS], -a);
x -= a;
l += a;
a = 0;
}
R_LineGraph (x, y, &packet_latency[a], l);
y = vid.height - sb_lines - 24 - r_graphheight->int_val + 7;
snprintf (st, sizeof (st), "%3i%% packet loss", lost);
if (swap) {
Draw_String8 (vid.width - ((strlen (st) * 8) + 8), y, st);
} else {
Draw_String8 (8, y, st);
}
}