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https://git.code.sf.net/p/quake/quakeforge
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010c658653
Tracy is a frame profiler: https://github.com/wolfpld/tracy This uses Tracy's C API to instrument the code (already added in several places). It turns out there is something very weird with the fence behavior between the staging buffers and render commands as the inter-frame delay occurs in a very strangle place (in the draw code's packet acquisition rather than the fence waiter that's there for that purpose). I suspect some tangled dependencies.
111 lines
2.4 KiB
C
111 lines
2.4 KiB
C
/*
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sys_unix.c
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(description)
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 2000 Marcus Sundberg [mackan@stacken.kth.se]
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifdef HAVE_FCNTL_H
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# include <fcntl.h>
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#else
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# include <sys/fcntl.h>
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#endif
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#include <locale.h>
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#include "QF/cvar.h"
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#include "QF/qargs.h"
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#include "QF/sys.h"
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#include "nq/include/client.h"
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#include "nq/include/host.h"
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bool isDedicated = false;
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static void
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shutdown_f (void *data)
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{
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// change stdin to blocking
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fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~O_NONBLOCK);
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fflush (stdout);
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}
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int
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main (int argc, const char **argv)
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{
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double time, oldtime, newtime;
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memset (&host_parms, 0, sizeof (host_parms));
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COM_InitArgv (argc, argv);
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host_parms.argc = com_argc;
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host_parms.argv = com_argv;
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isDedicated = (COM_CheckParm ("-dedicated") != 0);
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Sys_RegisterShutdown (shutdown_f, 0);
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Host_Init ();
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if (!sys_nostdout) {
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fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) | O_NONBLOCK);
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Sys_Printf ("Quake -- Version %s\n", NQ_VERSION);
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}
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setlocale (LC_ALL, "");
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oldtime = Sys_DoubleTime () - 0.1;
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while (1) { // Main message loop
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qfFrameMark;
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// find time spent rendering last frame
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newtime = Sys_DoubleTime ();
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time = newtime - oldtime;
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if (net_is_dedicated) { // play vcrfiles at max speed
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if (time < sys_ticrate && (!vcrFile || recording)) {
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usleep (1);
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continue; // not time to run a server-only tic yet
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}
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time = sys_ticrate;
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}
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if (time > sys_ticrate * 2)
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oldtime = newtime;
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else
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oldtime += time;
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Host_Frame (time);
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}
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}
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