fteqw/engine/client/sys_win.c

/*
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 the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/
// sys_win.h

#include "quakedef.h"
#include "winquake.h"
#include "resource.h"
#include "errno.h"
#include "fcntl.h"
#include <limits.h>
#include <conio.h>
#include <io.h>
#include <direct.h>

#ifdef NODIRECTX
#define DDActive 0
#endif





static HINSTANCE	game_library;

/*
=================
Sys_UnloadGame
=================
*/
void Sys_UnloadGame (void)
{
	if (!FreeLibrary (game_library))
		Sys_Error ("FreeLibrary failed for game library");
	game_library = NULL;
}

/*
=================
Sys_GetGameAPI

Loads the game dll
=================
*/
void *Sys_GetGameAPI (void *parms)
{
	void	*(VARGS *GetGameAPI) (void *);
	char	name[MAX_OSPATH];
	char	*path;
	char	cwd[MAX_OSPATH];
#if defined _M_IX86
	const char *gamename = "gamex86.dll";

#ifdef NDEBUG
	const char *debugdir = "release";
#else
	const char *debugdir = "debug";
#endif

#elif defined _M_ALPHA
	const char *gamename = "gameaxp.dll";

#ifdef NDEBUG
	const char *debugdir = "releaseaxp";
#else
	const char *debugdir = "debugaxp";
#endif

#endif

	if (game_library)
		Sys_Error ("Sys_GetGameAPI without Sys_UnloadingGame");

	// check the current debug directory first for development purposes
#ifdef _WIN32
	GetCurrentDirectory(sizeof(cwd), cwd);
#else
	_getcwd (cwd, sizeof(cwd));
#endif
	snprintf (name, sizeof(name), "%s/%s/%s", cwd, debugdir, gamename);
	game_library = LoadLibrary ( name );
	if (game_library)
	{
		Con_DPrintf ("LoadLibrary (%s)\n", name);
	}
	else
	{
#ifdef DEBUG
		// check the current directory for other development purposes
		_snprintf (name, sizeof(name), "%s/%s", cwd, gamename);
		game_library = LoadLibrary ( name );
		if (game_library)
		{
			Con_DPrintf ("LoadLibrary (%s)\n", name);
		}
		else
#endif
		{
			// now run through the search paths
			path = NULL;
			while (1)
			{
				path = COM_NextPath (path);
				if (!path)
					return NULL;		// couldn't find one anywhere
				snprintf (name, sizeof(name), "%s/%s", path, gamename);
				game_library = LoadLibrary (name);
				if (game_library)
				{
					Con_DPrintf ("LoadLibrary (%s)\n",name);
					break;
				}
			}
		}
	}

	GetGameAPI = (void *)GetProcAddress (game_library, "GetGameAPI");
	if (!GetGameAPI)
	{
		Sys_UnloadGame ();		
		return NULL;
	}

	return GetGameAPI (parms);
}






#define MINIMUM_WIN_MEMORY	0x0800000
#define MAXIMUM_WIN_MEMORY	0x4000000

#define PAUSE_SLEEP		50				// sleep time on pause or minimization
#define NOT_FOCUS_SLEEP	20				// sleep time when not focus

int		starttime;
qboolean ActiveApp, Minimized;
qboolean	WinNT;

HWND	hwnd_dialog;		// startup dialog box

static HANDLE		hinput, houtput;

HANDLE		qwclsemaphore;

static HANDLE	tevent;

void Sys_InitFloatTime (void);

void VARGS MaskExceptions (void);
void Sys_PopFPCW (void);
void Sys_PushFPCW_SetHigh (void);

int VARGS Sys_DebugLog(char *file, char *fmt, ...)
{
	FILE *fd;
	va_list argptr; 
	static char data[1024];
    
	va_start(argptr, fmt);
	vsnprintf(data, sizeof(data)-1, fmt, argptr);
	va_end(argptr);

#if defined(CRAZYDEBUGGING) && CRAZYDEBUGGING > 1
	{
		static int sock;
		if (!sock)
		{
			struct sockaddr_in sa;
			netadr_t na;
			int _true = true;
			int listip;
			listip = COM_CheckParm("-debugip");
			NET_StringToAdr(listip?com_argv[listip+1]:"127.0.0.1", &na);
			NetadrToSockadr(&na, (struct sockaddr_qstorage*)&sa);
			sa.sin_port = htons(10000);
			sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
			if (-1==connect(sock, (struct sockaddr*)&sa, sizeof(sa)))
				Sys_Error("Couldn't send debug log lines\n");
			setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (char*)&_true, sizeof(_true));
		}
		send(sock, data, strlen(data), 0);
	}
#endif
	fd = fopen(file, "ab");
	if (fd)
	{
		fprintf(fd, "%s", data);
		fclose(fd);
		return 0;
	}

	return 1;
};

int *debug;



#if (_WIN32_WINNT < 0x0400)
	#define LLKHF_ALTDOWN        0x00000020
	#define LLKHF_UP             0x00000080
	#define WH_KEYBOARD_LL     13
	typedef struct {
		DWORD vkCode;
		DWORD scanCode;
		DWORD flags;
		DWORD time;
		DWORD dwExtraInfo;
	} KBDLLHOOKSTRUCT;
#elif defined(MINGW)
	#define LLKHF_UP             0x00000080
#endif

HHOOK llkeyboardhook;

cvar_t	sys_disableWinKeys = SCVAR("sys_disableWinKeys", "0");
cvar_t	sys_disableTaskSwitch = SCVARF("sys_disableTaskSwitch", "0", CVAR_NOTFROMSERVER);	// please don't encourage people to use this...

LRESULT CALLBACK LowLevelKeyboardProc (INT nCode, WPARAM wParam, LPARAM lParam)
{
	KBDLLHOOKSTRUCT *pkbhs = (KBDLLHOOKSTRUCT *) lParam;
	if (ActiveApp)
	switch (nCode)
	{
	case HC_ACTION:
		{
		//Trap the Left Windowskey
			if (pkbhs->vkCode == VK_LWIN)
			{
				Key_Event (K_LWIN, !(pkbhs->flags & LLKHF_UP));
				return 1;
			}
		//Trap the Right Windowskey
			if (pkbhs->vkCode == VK_RWIN)
			{
				Key_Event (K_RWIN, !(pkbhs->flags & LLKHF_UP));
				return 1;
			}
		//Trap the Application Key (what a pointless key)
			if (pkbhs->vkCode == VK_APPS)
			{
				Key_Event (K_APP, !(pkbhs->flags & LLKHF_UP));
				return 1;
			}

		// Disable CTRL+ESC
			//this works, but we've got to give some way to tab out...
			if (sys_disableTaskSwitch.value)
			{
				if (pkbhs->vkCode == VK_ESCAPE && GetAsyncKeyState (VK_CONTROL) >> ((sizeof(SHORT) * 8) - 1))
					return 1;
		// Disable ATL+TAB
				if (pkbhs->vkCode == VK_TAB && pkbhs->flags & LLKHF_ALTDOWN)
					return 1;
		// Disable ALT+ESC
				if (pkbhs->vkCode == VK_ESCAPE && pkbhs->flags & LLKHF_ALTDOWN)
					return 1;
			}

			break;
		}
	default:
		break;
	}
	return CallNextHookEx (llkeyboardhook, nCode, wParam, lParam);
}

void SetHookState(qboolean state)
{
	if (!state == !llkeyboardhook)	//not so types are comparable
		return;

	if (llkeyboardhook)
	{
		UnhookWindowsHookEx(llkeyboardhook);
		llkeyboardhook = NULL;
	}
	if (state)
		llkeyboardhook = SetWindowsHookEx(WH_KEYBOARD_LL, LowLevelKeyboardProc, GetModuleHandle(NULL), 0);
}


/*
===============================================================================

FILE IO

===============================================================================
*/

/*
================
Sys_filelength
================
*/
int Sys_filelength (FILE *f)
{
	int		pos;
	int		end;

	pos = ftell (f);
	fseek (f, 0, SEEK_END);
	end = ftell (f);
	fseek (f, pos, SEEK_SET);

	return end;
}


int	Sys_FileTime (char *path)
{
	FILE	*f;
	int		t=0, retval;

	if (qrenderer)
		t = VID_ForceUnlockedAndReturnState ();
	
	f = fopen(path, "rb");
	
	if (f)
	{
		fclose(f);
		retval = 1;
	}
	else
	{
		retval = -1;
	}

	if (qrenderer)
		VID_ForceLockState (t);
	return retval;
}

void Sys_mkdir (char *path)
{
	_mkdir (path);
}

qboolean Sys_remove (char *path)
{
	remove (path);

	return true;
}

int Sys_EnumerateFiles (char *gpath, char *match, int (*func)(char *, int, void *), void *parm)
{
	HANDLE r;
	WIN32_FIND_DATA fd;	
	char apath[MAX_OSPATH];
	char apath2[MAX_OSPATH];
	char file[MAX_OSPATH];
	char *s;
	int go;
	if (!gpath)
		return 0;
//	strcpy(apath, match);
	Q_snprintfz(apath, sizeof(apath), "%s/%s", gpath, match);
	for (s = apath+strlen(apath)-1; s> apath; s--)
	{
		if (*s == '/')			
			break;
	}
	*s = '\0';

	//this is what we ask windows for.
	Q_snprintfz(file, sizeof(file), "%s/*.*", apath);

	//we need to make apath contain the path in match but not gpath
	Q_strncpyz(apath2, match, sizeof(apath));
	match = s+1;
	for (s = apath2+strlen(apath2)-1; s> apath2; s--)
	{
		if (*s == '/')			
			break;
	}
	*s = '\0';
	if (s != apath2)
		strcat(apath2, "/");

	r = FindFirstFile(file, &fd);
	if (r==(HANDLE)-1)
		return 1;
    go = true;
	do
	{
		if (*fd.cFileName == '.');	//don't ever find files with a name starting with '.'
		else if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)	//is a directory
		{
			if (wildcmp(match, fd.cFileName))
			{
				Q_snprintfz(file, sizeof(file), "%s%s/", apath2, fd.cFileName);
				go = func(file, fd.nFileSizeLow, parm);
			}
		}
		else
		{
			if (wildcmp(match, fd.cFileName))
			{
				Q_snprintfz(file, sizeof(file), "%s%s", apath2, fd.cFileName);
				go = func(file, fd.nFileSizeLow, parm);
			}
		}
	}
	while(FindNextFile(r, &fd) && go);
	FindClose(r);

	return go;
}

/*
===============================================================================

SYSTEM IO

===============================================================================
*/

/*
================
Sys_MakeCodeWriteable
================
*/
void Sys_MakeCodeWriteable (unsigned long startaddr, unsigned long length)
{
	DWORD  flOldProtect;

//@@@ copy on write or just read-write?
	if (!VirtualProtect((LPVOID)startaddr, length, PAGE_READWRITE, &flOldProtect))
   		Sys_Error("Protection change failed\n");
}


/*
================
Sys_Init
================
*/
void Sys_Init (void)
{
//	LARGE_INTEGER	PerformanceFreq;
//	unsigned int	lowpart, highpart;
	OSVERSIONINFO	vinfo;

	Cvar_Register(&sys_disableWinKeys, "System vars");
	Cvar_Register(&sys_disableTaskSwitch, "System vars");

#ifndef SERVERONLY
#ifndef CLIENTONLY
	if (!isDedicated && !COM_CheckParm("-nomutex"))
#else
	if (!COM_CheckParm("-nomutex"))	//we need to create a mutex to allow gamespy to realise that we're running, but it might not be desired as it prevents other clients from running too.
#endif
	{
		// allocate a named semaphore on the client so the
		// front end can tell if it is alive

		// mutex will fail if semephore 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      
	}
#endif


	MaskExceptions ();
	Sys_SetFPCW ();

#if 0
	if (!QueryPerformanceFrequency (&PerformanceFreq))
		Sys_Error ("No hardware timer available");

// get 32 out of the 64 time bits such that we have around
// 1 microsecond resolution
	lowpart = (unsigned int)PerformanceFreq.LowPart;
	highpart = (unsigned int)PerformanceFreq.HighPart;
	lowshift = 0;

	while (highpart || (lowpart > 2000000.0))
	{
		lowshift++;
		lowpart >>= 1;
		lowpart |= (highpart & 1) << 31;
		highpart >>= 1;
	}

	pfreq = 1.0 / (double)lowpart;

	Sys_InitFloatTime ();
#endif

	// 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 ("QuakeWorld requires at least Win95 or NT 4.0");
	}
	
	if (vinfo.dwPlatformId == VER_PLATFORM_WIN32_NT)
		WinNT = true;
	else
		WinNT = false;
}


void VARGS Sys_Error (const char *error, ...)
{
	va_list		argptr;
	char		text[1024];
	//, text2[1024];
//	DWORD		dummy;	

 	va_start (argptr, error);
	vsnprintf (text, sizeof(text), error, argptr);
	va_end (argptr);

	SetHookState(false);
	Host_Shutdown ();

	MessageBox(NULL, text, "Error", 0);

#ifndef SERVERONLY
	CloseHandle (qwclsemaphore);
#endif

	SetHookState(false);
	exit (1);
}

void VARGS Sys_Printf (char *fmt, ...)
{
	va_list		argptr;
	char		text[1024];
	DWORD		dummy;

	if (!houtput)
		return;

	va_start (argptr,fmt);
	vsnprintf (text, sizeof(text), fmt, argptr);
	va_end (argptr);

	WriteFile (houtput, text, strlen(text), &dummy, NULL);
}

void Sys_Quit (void)
{
	if (VID_ForceUnlockedAndReturnState)
		VID_ForceUnlockedAndReturnState ();

	SetHookState(false);

	Host_Shutdown();

#ifndef SERVERONLY
	if (tevent)
		CloseHandle (tevent);

	if (qwclsemaphore)
		CloseHandle (qwclsemaphore);
#endif

/* Yeah, right, just wishful thinking.
#ifdef _DEBUG
	if (Z_Allocated())
		MessageBox(0, "Some memory was left allocated", "Mem was left", 0);
#endif
*/


	SetHookState(false);
	exit (0);
}


#if 0
/*
================
Sys_DoubleTime
================
*/
double Sys_DoubleTime (void)
{
	static int			sametimecount;
	static unsigned int	oldtime;
	static int			first = 1;
	LARGE_INTEGER		PerformanceCount;
	unsigned int		temp, t2;
	double				time;

	Sys_PushFPCW_SetHigh ();

	QueryPerformanceCounter (&PerformanceCount);

	temp = ((unsigned int)PerformanceCount.LowPart >> lowshift) |
		   ((unsigned int)PerformanceCount.HighPart << (32 - lowshift));

	if (first)
	{
		oldtime = temp;
		first = 0;
	}
	else
	{
	// check for turnover or backward time
		if ((temp <= oldtime) && ((oldtime - temp) < 0x10000000))
		{
			oldtime = temp;	// so we can't get stuck
		}
		else
		{
			t2 = temp - oldtime;

			time = (double)t2 * pfreq;
			oldtime = temp;

			curtime += time;

			if (curtime == lastcurtime)
			{
				sametimecount++;

				if (sametimecount > 100000)
				{
					curtime += 1.0;
					sametimecount = 0;
				}
			}
			else
			{
				sametimecount = 0;
			}

			lastcurtime = curtime;
		}
	}

	Sys_PopFPCW ();

    return curtime;
}

/*
================
Sys_InitFloatTime
================
*/
void Sys_InitFloatTime (void)
{
	int		j;

	Sys_DoubleTime ();

	j = COM_CheckParm("-starttime");

	if (j)
	{
		curtime = (double) (Q_atof(com_argv[j+1]));
	}
	else
	{
		curtime = 0.0;
	}

	lastcurtime = curtime;
}

#endif
unsigned int Sys_Milliseconds (void)
{
	static DWORD starttime;
	static qboolean first = true;
	DWORD now;
//	double t;

	now = timeGetTime();

	if (first) {
		first = false;
		starttime = now;
		return 0.0;
	}
	/*
	if (now < starttime) // wrapped?
	{
		double r;
		r = (now) + (LONG_MAX - starttime);
		starttime = now;
		return r;
	}

	if (now - starttime == 0)
		return 0.0;
*/
	return (now - starttime);
}

double Sys_DoubleTime (void)
{
	return Sys_Milliseconds()/1000.f;
}




/////////////////////////////////////////////////////////////
//clipboard
HANDLE	clipboardhandle;
char *Sys_GetClipboard(void)
{
	char *clipText;
	if (OpenClipboard(NULL))
	{
		clipboardhandle = GetClipboardData(CF_TEXT);
		if (clipboardhandle)
		{
			clipText = GlobalLock(clipboardhandle);
			if (clipText)
				return clipText;

			//failed at the last hurdle

			GlobalUnlock(clipboardhandle);
		}
		CloseClipboard();
	}

	clipboardhandle = NULL;

	return NULL;
}
void Sys_CloseClipboard(char *bf)
{
	if (clipboardhandle)
	{
		GlobalUnlock(clipboardhandle);
		CloseClipboard();
		clipboardhandle = NULL;
	}
}
void Sys_SaveClipboard(char *text)
{
	HANDLE glob;
	char *temp;
	if (!OpenClipboard(NULL))
		return;
    EmptyClipboard();

	glob = GlobalAlloc(GMEM_MOVEABLE, strlen(text) + 1);
    if (glob == NULL)
    {
        CloseClipboard();
        return;
    }

	temp = GlobalLock(glob);
	if (temp != NULL)
	{
		strcpy(temp, text);
		GlobalUnlock(glob);
		SetClipboardData(CF_TEXT, glob);
	}
	else
		GlobalFree(glob);

	CloseClipboard();
}


//end of clipboard
/////////////////////////////////////////////////////////////




/////////////////////////////////////////
//the system console stuff

char *Sys_ConsoleInput (void)
{
	static char	text[256];
	static int		len;
	INPUT_RECORD	recs[1024];
//	int		count;
	int		i;
	int		ch;
	DWORD numevents, numread, dummy=0;
	HANDLE	th;
	char	*clipText, *textCopied;

	if (!hinput)
		return NULL;

	for ( ;; )
	{
		if (!GetNumberOfConsoleInputEvents (hinput, &numevents))
			Sys_Error ("Error getting # of console events");

		if (numevents <= 0)
			break;

		if (!ReadConsoleInput(hinput, recs, 1, &numread))
			Sys_Error ("Error reading console input");

		if (numread != 1)
			Sys_Error ("Couldn't read console input");

		if (recs[0].EventType == KEY_EVENT)
		{
			if (recs[0].Event.KeyEvent.bKeyDown)
			{
				ch = recs[0].Event.KeyEvent.uChar.AsciiChar;

				switch (ch)
				{
					case '\r':
						WriteFile(houtput, "\r\n", 2, &dummy, NULL);	

						if (len)
						{
							text[len] = 0;
							len = 0;
							return text;
						}
						break;

					case '\b':
						if (len)
						{
							len--;
							WriteFile(houtput, "\b \b", 3, &dummy, NULL);
						}
						break;

					default:
						if (((ch=='V' || ch=='v') && (recs[0].Event.KeyEvent.dwControlKeyState & 
							(LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))) || ((recs[0].Event.KeyEvent.dwControlKeyState 
							& SHIFT_PRESSED) && (recs[0].Event.KeyEvent.wVirtualKeyCode
							==VK_INSERT))) {
							if (OpenClipboard(NULL)) {
								th = GetClipboardData(CF_TEXT);
								if (th) {
									clipText = GlobalLock(th);
									if (clipText) {
										textCopied = BZ_Malloc(GlobalSize(th)+1);
										strcpy(textCopied, clipText);
/* Substitutes a NULL for every token */strtok(textCopied, "\n\r\b");
										i = strlen(textCopied);
										if (i+len>=256)
											i=256-len;
										if (i>0) {
											textCopied[i]=0;
											text[len]=0;
											strcat(text, textCopied);
											len+=dummy;
											WriteFile(houtput, textCopied, i, &dummy, NULL);
										}
										BZ_Free(textCopied);
									}
									GlobalUnlock(th);
								}
								CloseClipboard();
							}
						} else if (ch >= ' ')
						{
							WriteFile(houtput, &ch, 1, &dummy, NULL);	
							text[len] = ch;
							len = (len + 1) & 0xff;
						}

						break;

				}
			}
		}
	}

	return NULL;
}

BOOL WINAPI HandlerRoutine (DWORD dwCtrlType)
{
	switch (dwCtrlType)
	{
		case CTRL_C_EVENT:		
		case CTRL_BREAK_EVENT:
		case CTRL_CLOSE_EVENT:
		case CTRL_LOGOFF_EVENT:
		case CTRL_SHUTDOWN_EVENT:
			Cbuf_AddText ("quit\n", RESTRICT_LOCAL);
			return true;
	}

	return false;
}

qboolean Sys_InitTerminal (void)
{
	if (!AllocConsole())
		return false;
	SetConsoleCtrlHandler (HandlerRoutine, TRUE);
	SetConsoleTitle (FULLENGINENAME " dedicated server");
	hinput = GetStdHandle (STD_INPUT_HANDLE);
	houtput = GetStdHandle (STD_OUTPUT_HANDLE);

	return true;
}
void Sys_CloseTerminal (void)
{
	FreeConsole();

	hinput = NULL;
	houtput = NULL;
}


//
////////////////////////////

void Sys_Sleep (void)
{
}


void Sys_SendKeyEvents (void)
{
    MSG        msg;

	if (isDedicated)
	{
#ifndef CLIENTONLY
		SV_GetConsoleCommands ();
#endif
		return;
	}

	while (PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE))
	{
	// we always update if there are any event, even if we're paused
		scr_skipupdate = 0;

		if (!GetMessage (&msg, NULL, 0, 0))
			break;
//			Sys_Quit ();
      	TranslateMessage (&msg);
      	DispatchMessage (&msg);
	}
}


void Sys_ServerActivity(void)
{
	FlashWindow(mainwindow, true);
}

/*
==============================================================================

 WINDOWS CRAP

==============================================================================
*/

/*
==================
WinMain
==================
*/
void SleepUntilInput (int time)
{

	MsgWaitForMultipleObjects(1, &tevent, FALSE, time, QS_ALLINPUT);
}

/*
==================
WinMain
==================
*/
HINSTANCE	global_hInstance;
int			global_nCmdShow;
char		*argv[MAX_NUM_ARGVS];
static char	exename[256];
HWND		hwnd_dialog;

#ifndef CLIENTONLY
qboolean isDedicated = false;
#endif
/*
#ifdef _MSC_VER
#include <signal.h>
void VARGS Signal_Error_Handler(int i)
{
	int *basepointer;
	__asm {mov basepointer,ebp};
	Sys_Error("Received signal, offset was 0x%8x", basepointer[73]);
}
#endif
*/

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
//    MSG				msg;
	quakeparms_t	parms;
	double			time, oldtime, newtime;
	MEMORYSTATUS	lpBuffer;
	char	cwd[1024];
	int				t;
	RECT			rect;
	char *qtvfile = NULL;
	
	/* previous instances do not exist in Win32 */
    if (hPrevInstance)
        return 0;
/*
#ifndef _DEBUG
#ifdef _MSC_VER
	signal (SIGFPE,	Signal_Error_Handler);
	signal (SIGILL,	Signal_Error_Handler);
	signal (SIGSEGV,	Signal_Error_Handler);
#endif
#endif
*/
	global_hInstance = hInstance;
	global_nCmdShow = nCmdShow;

	lpBuffer.dwLength = sizeof(MEMORYSTATUS);
	GlobalMemoryStatus (&lpBuffer);

	parms.argc = 1;
	argv[0] = exename;

	while (*lpCmdLine && (parms.argc < MAX_NUM_ARGVS))
	{
		while (*lpCmdLine && ((*lpCmdLine <= 32) || (*lpCmdLine > 126)))
			lpCmdLine++;

		if (*lpCmdLine)
		{
			if (*lpCmdLine == '\"')
			{
				lpCmdLine++;

				argv[parms.argc] = lpCmdLine;
				parms.argc++;

				while (*lpCmdLine && *lpCmdLine != '\"')
					lpCmdLine++;
			}
			else
			{
				argv[parms.argc] = lpCmdLine;
				parms.argc++;


				while (*lpCmdLine && ((*lpCmdLine > 32) && (*lpCmdLine <= 126)))
					lpCmdLine++;
			}

			if (*lpCmdLine)
			{
				*lpCmdLine = 0;
				lpCmdLine++;
			}
		}
	}

	GetModuleFileName(NULL, cwd, sizeof(cwd)-1);
	strcpy(exename, COM_SkipPath(cwd));
	parms.argv = argv;

	COM_InitArgv (parms.argc, parms.argv);

	if (COM_CheckParm("--version") || COM_CheckParm("-v"))
	{
		printf("version " DISTRIBUTION " " __TIME__ __DATE__ "\n");
		return true;
	}

	if (!GetCurrentDirectory (sizeof(cwd), cwd))
		Sys_Error ("Couldn't determine current directory");
	if (parms.argc >= 2)
	{
		if (*parms.argv[1] != '-' && *parms.argv[1] != '+')
		{
			char *e;

			qtvfile = parms.argv[1];


			GetModuleFileName(NULL, cwd, sizeof(cwd)-1);
			for (e = cwd+strlen(cwd)-1; e >= cwd; e--)
			{
				if (*e == '/' || *e == '\\')
				{
					*e = 0;
					break;
				}
			}

		}
	}

	TL_InitLanguages();
	//tprints are now allowed

	parms.basedir = cwd;

	parms.argc = com_argc;
	parms.argv = com_argv;

#ifndef CLIENTONLY
	if (COM_CheckParm ("-dedicated"))
	{
		isDedicated = true;
		hwnd_dialog=NULL;
		
		if (!Sys_InitTerminal())
			Sys_Error ("Couldn't allocate dedicated server console");
	}
	else
#endif
		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);
	}

// take the greater of all the available memory or half the total memory,
// but at least 8 Mb and no more than 16 Mb, unless they explicitly
// request otherwise
	parms.memsize = lpBuffer.dwAvailPhys;

	if (parms.memsize < MINIMUM_WIN_MEMORY)
		parms.memsize = MINIMUM_WIN_MEMORY;

	if (parms.memsize < (lpBuffer.dwTotalPhys >> 1))
		parms.memsize = lpBuffer.dwTotalPhys >> 1;

	if (parms.memsize > MAXIMUM_WIN_MEMORY)
		parms.memsize = MAXIMUM_WIN_MEMORY;

	if (COM_CheckParm ("-heapsize"))
	{
		t = COM_CheckParm("-heapsize") + 1;

		if (t < com_argc)
			parms.memsize = Q_atoi (com_argv[t]) * 1024;
	}
	else if (COM_CheckParm ("-mem"))
	{
		t = COM_CheckParm("-mem") + 1;

		if (t < com_argc)
			parms.memsize = Q_atoi (com_argv[t]) * 1024*1024;
	}

	parms.membase = VirtualAlloc (NULL, parms.memsize, MEM_RESERVE, PAGE_NOACCESS);
//	parms.membase = malloc (parms.memsize);

	if (!parms.membase)
		Sys_Error ("Not enough memory free; check disk space\n");

#ifndef CLIENTONLY
	if (isDedicated)	//compleate denial to switch to anything else - many of the client structures are not initialized.
	{
		SV_Init (&parms);

		SV_Frame ();

		while (1)
		{
			if (!isDedicated)
				Sys_Error("Dedicated was cleared");
			NET_Sleep(100, false);				
			SV_Frame ();
		}
		return TRUE;
	}
#endif

	tevent = CreateEvent(NULL, FALSE, FALSE, NULL);
	if (!tevent)
		Sys_Error ("Couldn't create event");

	Sys_Printf ("Host_Init\n");
	Host_Init (&parms);

	oldtime = Sys_DoubleTime ();


	if (qtvfile)
		Cbuf_AddText(va("qtvplay \"#%s\"\n", qtvfile), RESTRICT_LOCAL);

//client console should now be initialized.

    /* main window message loop */
	while (1)
	{
#ifndef CLIENTONLY
		if (isDedicated)
		{
			NET_Sleep(50, false);

		// find time passed since last cycle
			newtime = Sys_DoubleTime ();
			time = newtime - oldtime;
			oldtime = newtime;
			
			SV_Frame ();
		}
		else
#endif
		{
	// yield the CPU for a little while when paused, minimized, or not the focus
			if (((cl.paused && (!ActiveApp && !DDActive)) || Minimized || block_drawing) && !Media_PlayingFullScreen())
			{
				SleepUntilInput (PAUSE_SLEEP);
				scr_skipupdate = 1;		// no point in bothering to draw
			}
			else if (!ActiveApp && !DDActive && !Media_PlayingFullScreen())
			{
				SleepUntilInput (NOT_FOCUS_SLEEP);
			}

			newtime = Sys_DoubleTime ();
			time = newtime - oldtime;
			Host_Frame (time);
			oldtime = newtime;

			SetHookState(sys_disableWinKeys.value);

//			Sleep(0);
		}
	}

    /* return success of application */
    return TRUE;
}

qboolean Sys_GetDesktopParameters(int *width, int *height, int *bpp, int *refreshrate)
{
	HDC hdc;
	int rate;

	hdc = GetDC(NULL);

	*width = GetDeviceCaps(hdc, HORZRES);
	*height = GetDeviceCaps(hdc, VERTRES);
	*bpp = GetDeviceCaps(hdc, BITSPIXEL);
	rate = GetDeviceCaps(hdc, VREFRESH);

	if (rate == 1)
		rate = 0;

	*refreshrate = rate;

	ReleaseDC(NULL, hdc);

	return true;
}


#ifdef NOASM //these couldn't be found... (it is a masm thing, right?)
void Sys_HighFPPrecision (void)
{
}

void Sys_LowFPPrecision (void)
{
}

void Sys_SetFPCW (void)
{
}

void MaskExceptions (void)
{
}
#endif