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/*
Copyright (C) 1996-2001 Id Software, Inc.
Copyright (C) 2002-2005 John Fitzgibbons and others
Copyright (C) 2007-2008 Kristian Duske
Copyright (C) 2010-2014 QuakeSpasm developers
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 the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "quakedef.h"
#if defined(SDL_FRAMEWORK) || defined(NO_SDL_CONFIG)
#if defined(USE_SDL2)
#include <SDL2/SDL.h>
#else
#include <SDL/SDL.h>
#endif
#else
#include "SDL.h"
#endif
#include <stdio.h>
#if defined(USE_SDL2)
/* need at least SDL_2.0.0 */
#define SDL_MIN_X 2
#define SDL_MIN_Y 0
#define SDL_MIN_Z 0
#define SDL_REQUIREDVERSION (SDL_VERSIONNUM(SDL_MIN_X,SDL_MIN_Y,SDL_MIN_Z))
#define SDL_NEW_VERSION_REJECT (SDL_VERSIONNUM(3,0,0))
#else
/* need at least SDL_1.2.10 */
#define SDL_MIN_X 1
#define SDL_MIN_Y 2
#define SDL_MIN_Z 10
#define SDL_REQUIREDVERSION (SDL_VERSIONNUM(SDL_MIN_X,SDL_MIN_Y,SDL_MIN_Z))
/* reject 1.3.0 and newer at runtime. */
#define SDL_NEW_VERSION_REJECT (SDL_VERSIONNUM(1,3,0))
#endif
static void Sys_AtExit (void)
{
SDL_Quit();
}
static void Sys_InitSDL (void)
{
#if defined(USE_SDL2)
SDL_version v;
SDL_version *sdl_version = &v;
SDL_GetVersion(&v);
#else
const SDL_version *sdl_version = SDL_Linked_Version();
#endif
Sys_Printf("Found SDL version %i.%i.%i\n",sdl_version->major,sdl_version->minor,sdl_version->patch);
if (SDL_VERSIONNUM(sdl_version->major,sdl_version->minor,sdl_version->patch) < SDL_REQUIREDVERSION)
{ /*reject running under older SDL versions */
Sys_Error("You need at least v%d.%d.%d of SDL to run this game.", SDL_MIN_X,SDL_MIN_Y,SDL_MIN_Z);
}
if (SDL_VERSIONNUM(sdl_version->major,sdl_version->minor,sdl_version->patch) >= SDL_NEW_VERSION_REJECT)
{ /*reject running under newer (1.3.x) SDL */
Sys_Error("Your version of SDL library is incompatible with me.\n"
"You need a library version in the line of %d.%d.%d\n", SDL_MIN_X,SDL_MIN_Y,SDL_MIN_Z);
}
if (SDL_Init(0) < 0)
{
Sys_Error("Couldn't init SDL: %s", SDL_GetError());
}
atexit(Sys_AtExit);
}
#define DEFAULT_MEMORY (256 * 1024 * 1024) // ericw -- was 72MB (64-bit) / 64MB (32-bit)
static quakeparms_t parms;
// On OS X we call SDL_main from the launcher, but SDL2 doesn't redefine main
// as SDL_main on OS X anymore, so we do it ourselves.
#if defined(USE_SDL2) && defined(__APPLE__)
#define main SDL_main
#endif
int main(int argc, char *argv[])
{
int t;
double time, oldtime, newtime;
host_parms = &parms;
parms.basedir = ".";
parms.argc = argc;
parms.argv = argv;
parms.errstate = 0;
COM_InitArgv(parms.argc, parms.argv);
isDedicated = (COM_CheckParm("-dedicated") != 0);
Sys_InitSDL ();
Sys_Init();
parms.memsize = DEFAULT_MEMORY;
if (COM_CheckParm("-heapsize"))
{
t = COM_CheckParm("-heapsize") + 1;
if (t < com_argc)
parms.memsize = Q_atoi(com_argv[t]) * 1024;
}
parms.membase = malloc (parms.memsize);
if (!parms.membase)
Sys_Error ("Not enough memory free; check disk space\n");
Sys_Printf("Quake %1.2f (c) id Software\n", VERSION);
Sys_Printf("GLQuake %1.2f (c) id Software\n", GLQUAKE_VERSION);
Sys_Printf("FitzQuake %1.2f (c) John Fitzgibbons\n", FITZQUAKE_VERSION);
Sys_Printf("FitzQuake SDL port (c) SleepwalkR, Baker\n");
Sys_Printf("QuakeSpasm " QUAKESPASM_VER_STRING " (c) Ozkan Sezer, Eric Wasylishen & others\n");
Sys_Printf("Host_Init\n");
Host_Init();
oldtime = Sys_DoubleTime();
if (isDedicated)
{
while (1)
{
newtime = Sys_DoubleTime ();
time = newtime - oldtime;
while (time < sys_ticrate.value )
{
SDL_Delay(1);
newtime = Sys_DoubleTime ();
time = newtime - oldtime;
}
Host_Frame (time);
oldtime = newtime;
}
}
else
while (1)
{
/* If we have no input focus at all, sleep a bit */
if (!VID_HasMouseOrInputFocus() || cl.paused)
{
SDL_Delay(16);
}
/* If we're minimised, sleep a bit more */
if (VID_IsMinimized())
{
scr_skipupdate = 1;
SDL_Delay(32);
}
else
{
scr_skipupdate = 0;
}
newtime = Sys_DoubleTime ();
time = newtime - oldtime;
Host_Frame (time);
if (time < sys_throttle.value && !cls.timedemo)
SDL_Delay(1);
oldtime = newtime;
}
return 0;
}
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