quakeforge/qw/source/cl_sys_win.c

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/*
cl_sys_win.c
(description)
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 "winquake.h"
#include "QF/qargs.h"
#include "QF/screen.h"
#include "QF/sys.h"
#include "client.h"
#include "host.h"
#define MAXIMUM_WIN_MEMORY 0x1000000
#define MINIMUM_WIN_MEMORY 0x0c00000
#define PAUSE_SLEEP 50 // sleep time on pause or
// minimization
#define NOT_FOCUS_SLEEP 20 // sleep time when not focus
qboolean ActiveApp, Minimized, WinNT;
HWND hwnd_dialog; // startup dialog box
HANDLE qwclsemaphore;
2001-11-21 02:07:55 +00:00
static HANDLE tevent;
static void
startup (void)
{
OSVERSIONINFO vinfo;
// allocate named semaphore on client so front end can tell if it's alive
// mutex will fail if semaphore already exists
qwclsemaphore = CreateMutex (NULL, // Security attributes
0, // owner
"qwcl"); // Semaphore name
if (!qwclsemaphore)
Sys_Error ("QWCL is already running on this system");
CloseHandle (qwclsemaphore);
qwclsemaphore = CreateSemaphore (NULL, // Security attributes
0, // Initial count
1, // Maximum count
"qwcl"); // Semaphore name
// make sure the timer is high precision, otherwise NT gets 18ms resolution
timeBeginPeriod (1);
vinfo.dwOSVersionInfoSize = sizeof (vinfo);
if (!GetVersionEx (&vinfo))
Sys_Error ("Couldn't get OS info");
if ((vinfo.dwMajorVersion < 4) ||
(vinfo.dwPlatformId == VER_PLATFORM_WIN32s)) {
Sys_Error ("This version of " PACKAGE_NAME
" requires a full Win32 implementation.");
}
if (vinfo.dwPlatformId == VER_PLATFORM_WIN32_NT)
WinNT = true;
else
WinNT = false;
}
static void
shutdown_f (void *data)
{
if (tevent)
CloseHandle (tevent);
if (qwclsemaphore)
CloseHandle (qwclsemaphore);
}
static void
SleepUntilInput (int time)
{
MsgWaitForMultipleObjects (1, &tevent, FALSE, time, QS_ALLINPUT);
}
HINSTANCE global_hInstance;
int global_nCmdShow;
static const char *empty_string = "";
int WINAPI
WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine,
int nCmdShow)
{
int argc;
const char *argv[MAX_NUM_ARGVS];
double time, oldtime, newtime;
#ifdef SPLASH_SCREEN
RECT rect;
#endif
// previous instances do not exist in Win32
if (hPrevInstance)
return 0;
startup ();
global_hInstance = hInstance;
global_nCmdShow = nCmdShow;
argc = 1;
argv[0] = empty_string;
while (*lpCmdLine && (argc < MAX_NUM_ARGVS)) {
while (*lpCmdLine && ((*lpCmdLine <= 32) || (*lpCmdLine > 126)))
lpCmdLine++;
if (*lpCmdLine) {
argv[argc] = lpCmdLine;
argc++;
while (*lpCmdLine && ((*lpCmdLine > 32) && (*lpCmdLine <= 126)))
lpCmdLine++;
if (*lpCmdLine) {
*lpCmdLine = 0;
lpCmdLine++;
}
}
}
COM_InitArgv (argc, argv);
host_parms.argc = com_argc;
host_parms.argv = com_argv;
#ifdef SPLASH_SCREEN
hwnd_dialog = CreateDialog (hInstance, MAKEINTRESOURCE (IDD_DIALOG1),
NULL, NULL);
if (hwnd_dialog) {
if (GetWindowRect (hwnd_dialog, &rect)) {
if (rect.left > (rect.top * 2)) {
SetWindowPos (hwnd_dialog, 0,
(rect.left / 2) - ((rect.right - rect.left) / 2),
rect.top, 0, 0, SWP_NOZORDER | SWP_NOSIZE);
}
}
ShowWindow (hwnd_dialog, SW_SHOWDEFAULT);
UpdateWindow (hwnd_dialog);
SetForegroundWindow (hwnd_dialog);
}
#endif
tevent = CreateEvent (NULL, FALSE, FALSE, NULL);
if (!tevent)
Sys_Error ("Couldn't create event");
Sys_RegisterShutdown (Host_Shutdown, 0);
Sys_RegisterShutdown (Net_LogStop, 0);
Sys_RegisterShutdown (shutdown_f, 0);
Host_Init ();
oldtime = Sys_DoubleTime ();
while (1) { // Main message loop
// yield CPU for a little bit when paused, minimized, or not the focus
if ((cl.paused && (!ActiveApp)) || Minimized) {
SleepUntilInput (PAUSE_SLEEP);
scr_skipupdate = 1; // no point in bothering to draw
} else if (!ActiveApp) {
SleepUntilInput (NOT_FOCUS_SLEEP);
}
newtime = Sys_DoubleTime ();
time = newtime - oldtime;
Host_Frame (time);
oldtime = newtime;
}
}