quakeforge/libs/video/renderer/r_graph.c

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/*
r_graph.c
rednerer diagnostic graphs
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
#include "QF/draw.h"
#include "QF/render.h"
#include "QF/plugin.h"
#include "QF/sys.h"
#include "r_internal.h"
#define MAX_TIMINGS 100
int graphval;
2001-08-26 16:54:33 +00:00
/*
R_TimeGraph
Performance monitoring tool
*/
void
R_TimeGraph (void)
{
static int timex;
int a;
int l;
//XXX float r_time2;
static int r_timings[MAX_TIMINGS];
int x;
//XXX r_time2 = Sys_DoubleTime ();
a = graphval;
r_timings[timex] = a;
l = MAX_TIMINGS;
if (l > r_refdef.vrect.width)
l = r_refdef.vrect.width;
x = r_refdef.vrect.width - l;
a = timex - l;
if (a < 0) {
vr_funcs->R_LineGraph (x, r_refdef.vrect.height - 2,
&r_timings[a + MAX_TIMINGS], -a);
x -= a;
l += a;
a = 0;
}
vr_funcs->R_LineGraph (x, r_refdef.vrect.height - 2, &r_timings[a], l);
timex = (timex + 1) % MAX_TIMINGS;
}
void
R_ZGraph (void)
{
int x, w;
static int height[256];
if (r_refdef.vrect.width <= 256)
w = r_refdef.vrect.width;
else
w = 256;
height[r_framecount & 255] = ((int) r_origin[2]) & 31;
x = 0;
vr_funcs->R_LineGraph (x, r_refdef.vrect.height - 2, height, w);
}