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
*/
#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
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#include "QF/cvar.h"
#include "QF/draw.h"
#include "QF/render.h"
#include "QF/screen.h"
#include "QF/va.h"
#include "QF/ui/view.h"
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#include "compat.h"
#include "qw/include/cl_parse.h"
#include "qw/include/client.h"
#include "sbar.h"
int cl_netgraph;
static cvar_t cl_netgraph_cvar = {
.name = "cl_netgraph",
.description =
"Toggle the display of a graph showing network performance",
.default_value = "0",
.flags = CVAR_NONE,
.value = { .type = &cexpr_int, .value = &cl_netgraph },
};
float cl_netgraph_alpha;
static cvar_t cl_netgraph_alpha_cvar = {
.name = "cl_netgraph_alpha",
.description =
"Net graph translucency",
.default_value = "0.5",
.flags = CVAR_ARCHIVE,
.value = { .type = &cexpr_float, .value = &cl_netgraph_alpha },
};
int cl_netgraph_box;
static cvar_t cl_netgraph_box_cvar = {
.name = "cl_netgraph_box",
.description =
" Draw box around net graph",
.default_value = "1",
.flags = CVAR_ARCHIVE,
.value = { .type = &cexpr_int, .value = &cl_netgraph_box },
};
int cl_netgraph_height;
static cvar_t cl_netgraph_height_cvar = {
.name = "cl_netgraph_height",
.description =
"Set the fullscale (1s) height of the graph",
.default_value = "32",
.flags = CVAR_ARCHIVE,
.value = { .type = &cexpr_int, .value = &cl_netgraph_height },
};
view_t *cl_netgraph_view;
static void
cl_netgraph_f (void *data, const cvar_t *cvar)
{
if (cl_netgraph_view) {
cl_netgraph_view->visible = cl_netgraph != 0;
}
}
static void
cl_netgraph_height_f (void *data, const cvar_t *cvar)
{
cl_netgraph_height = max (32, cl_netgraph_height);
if (cl_netgraph_view) {
view_resize (cl_netgraph_view, cl_netgraph_view->xlen,
cl_netgraph_height + 25);
}
}
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void
CL_NetGraph (view_t *view)
{
int lost, a, l, x, y, i, o;
int timings[NET_TIMINGS];
x = view->xabs;
y = view->yabs;
if (cl_netgraph_box) {
r_funcs->Draw_TextBox (x, y, NET_TIMINGS / 8,
cl_netgraph_height / 8 + 1,
cl_netgraph_alpha * 255);
}
lost = CL_CalcNet ();
x = view->xabs + 8;
y = view->yabs + view->ylen - 9;
l = NET_TIMINGS;
if (l > view->xlen - 8)
l = view->xlen - 8;
i = cls.netchan.outgoing_sequence & NET_TIMINGSMASK;
a = i - l;
o = 0;
if (a < 0) {
memcpy (timings + o, packet_latency + a + NET_TIMINGS,
-a * sizeof (timings[0]));
o -= a;
l += a;
a = 0;
}
memcpy (timings + o, packet_latency + a, l * sizeof (timings[0]));
r_funcs->R_LineGraph (x, y, timings,
NET_TIMINGS, cl_netgraph_height);
x = view->xabs + 8;
y = view->yabs + 8;
r_funcs->Draw_String (x, y, va (0, "%3i%% packet loss", lost));
}
void
CL_NetGraph_Init_Cvars (void)
{
Cvar_Register (&cl_netgraph_cvar, cl_netgraph_f, 0);
Cvar_Register (&cl_netgraph_alpha_cvar, 0, 0);
Cvar_Register (&cl_netgraph_box_cvar, 0, 0);
Cvar_Register (&cl_netgraph_height_cvar, cl_netgraph_height_f, 0);
}