ref: 372afde46e7defc9dd2d719a1732b8ace1fa096e
dir: /win32/sys_win.c/
/*
Copyright (C) 1997-2001 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 "../qcommon/qcommon.h"
#include "winquake.h"
#include "resource.h"
#include <errno.h>
#include <float.h>
#include <fcntl.h>
#include <stdio.h>
#include <direct.h>
#include <io.h>
#include <conio.h>
#include "../win32/conproc.h"
#define MINIMUM_WIN_MEMORY 0x0a00000
#define MAXIMUM_WIN_MEMORY 0x1000000
//#define DEMO
qboolean s_win95;
int starttime;
int ActiveApp;
qboolean Minimized;
static HANDLE hinput, houtput;
unsigned sys_msg_time;
unsigned sys_frame_time;
static HANDLE qwclsemaphore;
#define MAX_NUM_ARGVS 128
int argc;
char *argv[MAX_NUM_ARGVS];
/*
===============================================================================
SYSTEM IO
===============================================================================
*/
void Sys_Error (char *error, ...)
{
va_list argptr;
char text[1024];
CL_Shutdown ();
Qcommon_Shutdown ();
va_start (argptr, error);
vsprintf (text, error, argptr);
va_end (argptr);
MessageBox(NULL, text, "Error", 0 /* MB_OK */ );
if (qwclsemaphore)
CloseHandle (qwclsemaphore);
// shut down QHOST hooks if necessary
DeinitConProc ();
exit (1);
}
void Sys_Quit (void)
{
timeEndPeriod( 1 );
CL_Shutdown();
Qcommon_Shutdown ();
CloseHandle (qwclsemaphore);
if (dedicated && dedicated->value)
FreeConsole ();
// shut down QHOST hooks if necessary
DeinitConProc ();
exit (0);
}
void WinError (void)
{
LPVOID lpMsgBuf;
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
(LPTSTR) &lpMsgBuf,
0,
NULL
);
// Display the string.
MessageBox( NULL, lpMsgBuf, "GetLastError", MB_OK|MB_ICONINFORMATION );
// Free the buffer.
LocalFree( lpMsgBuf );
}
//================================================================
/*
================
Sys_ScanForCD
================
*/
char *Sys_ScanForCD (void)
{
static char cddir[MAX_OSPATH];
static qboolean done;
#ifndef DEMO
char drive[4];
FILE *f;
char test[MAX_QPATH];
if (done) // don't re-check
return cddir;
// no abort/retry/fail errors
SetErrorMode (SEM_FAILCRITICALERRORS);
drive[0] = 'c';
drive[1] = ':';
drive[2] = '\\';
drive[3] = 0;
done = true;
// scan the drives
for (drive[0] = 'c' ; drive[0] <= 'z' ; drive[0]++)
{
// where activision put the stuff...
sprintf (cddir, "%sinstall\\data", drive);
sprintf (test, "%sinstall\\data\\quake2.exe", drive);
f = fopen(test, "r");
if (f)
{
fclose (f);
if (GetDriveType (drive) == DRIVE_CDROM)
return cddir;
}
}
#endif
cddir[0] = 0;
return NULL;
}
/*
================
Sys_CopyProtect
================
*/
void Sys_CopyProtect (void)
{
#ifndef DEMO
char *cddir;
cddir = Sys_ScanForCD();
if (!cddir[0])
Com_Error (ERR_FATAL, "You must have the Quake2 CD in the drive to play.");
#endif
}
//================================================================
/*
================
Sys_Init
================
*/
void Sys_Init (void)
{
OSVERSIONINFO vinfo;
#if 0
// 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
timeBeginPeriod( 1 );
vinfo.dwOSVersionInfoSize = sizeof(vinfo);
if (!GetVersionEx (&vinfo))
Sys_Error ("Couldn't get OS info");
if (vinfo.dwMajorVersion < 4)
Sys_Error ("Quake2 requires windows version 4 or greater");
if (vinfo.dwPlatformId == VER_PLATFORM_WIN32s)
Sys_Error ("Quake2 doesn't run on Win32s");
else if ( vinfo.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS )
s_win95 = true;
if (dedicated->value)
{
if (!AllocConsole ())
Sys_Error ("Couldn't create dedicated server console");
hinput = GetStdHandle (STD_INPUT_HANDLE);
houtput = GetStdHandle (STD_OUTPUT_HANDLE);
// let QHOST hook in
InitConProc (argc, argv);
}
}
static char console_text[256];
static int console_textlen;
/*
================
Sys_ConsoleInput
================
*/
char *Sys_ConsoleInput (void)
{
INPUT_RECORD recs[1024];
int dummy;
int ch, numread, numevents;
if (!dedicated || !dedicated->value)
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 (console_textlen)
{
console_text[console_textlen] = 0;
console_textlen = 0;
return console_text;
}
break;
case '\b':
if (console_textlen)
{
console_textlen--;
WriteFile(houtput, "\b \b", 3, &dummy, NULL);
}
break;
default:
if (ch >= ' ')
{
if (console_textlen < sizeof(console_text)-2)
{
WriteFile(houtput, &ch, 1, &dummy, NULL);
console_text[console_textlen] = ch;
console_textlen++;
}
}
break;
}
}
}
}
return NULL;
}
/*
================
Sys_ConsoleOutput
Print text to the dedicated console
================
*/
void Sys_ConsoleOutput (char *string)
{
int dummy;
char text[256];
if (!dedicated || !dedicated->value)
return;
if (console_textlen)
{
text[0] = '\r';
memset(&text[1], ' ', console_textlen);
text[console_textlen+1] = '\r';
text[console_textlen+2] = 0;
WriteFile(houtput, text, console_textlen+2, &dummy, NULL);
}
WriteFile(houtput, string, strlen(string), &dummy, NULL);
if (console_textlen)
WriteFile(houtput, console_text, console_textlen, &dummy, NULL);
}
/*
================
Sys_SendKeyEvents
Send Key_Event calls
================
*/
void Sys_SendKeyEvents (void)
{
MSG msg;
while (PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE))
{
if (!GetMessage (&msg, NULL, 0, 0))
Sys_Quit ();
sys_msg_time = msg.time;
TranslateMessage (&msg);
DispatchMessage (&msg);
}
// grab frame time
sys_frame_time = timeGetTime(); // FIXME: should this be at start?
}
/*
================
Sys_GetClipboardData
================
*/
char *Sys_GetClipboardData( void )
{
char *data = NULL;
char *cliptext;
if ( OpenClipboard( NULL ) != 0 )
{
HANDLE hClipboardData;
if ( ( hClipboardData = GetClipboardData( CF_TEXT ) ) != 0 )
{
if ( ( cliptext = GlobalLock( hClipboardData ) ) != 0 )
{
data = malloc( GlobalSize( hClipboardData ) + 1 );
strcpy( data, cliptext );
GlobalUnlock( hClipboardData );
}
}
CloseClipboard();
}
return data;
}
/*
==============================================================================
WINDOWS CRAP
==============================================================================
*/
/*
=================
Sys_AppActivate
=================
*/
void Sys_AppActivate (void)
{
ShowWindow ( cl_hwnd, SW_RESTORE);
SetForegroundWindow ( cl_hwnd );
}
/*
========================================================================
GAME DLL
========================================================================
*/
static HINSTANCE game_library;
/*
=================
Sys_UnloadGame
=================
*/
void Sys_UnloadGame (void)
{
if (!FreeLibrary (game_library))
Com_Error (ERR_FATAL, "FreeLibrary failed for game library");
game_library = NULL;
}
/*
=================
Sys_GetGameAPI
Loads the game dll
=================
*/
void *Sys_GetGameAPI (void *parms)
{
void *(*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)
Com_Error (ERR_FATAL, "Sys_GetGameAPI without Sys_UnloadingGame");
// check the current debug directory first for development purposes
_getcwd (cwd, sizeof(cwd));
Com_sprintf (name, sizeof(name), "%s/%s/%s", cwd, debugdir, gamename);
game_library = LoadLibrary ( name );
if (game_library)
{
Com_DPrintf ("LoadLibrary (%s)\n", name);
}
else
{
// check the current directory for other development purposes
Com_sprintf (name, sizeof(name), "%s/%s", cwd, gamename);
game_library = LoadLibrary ( name );
if (game_library)
{
Com_DPrintf ("LoadLibrary (%s)\n", name);
}
else
{
// now run through the search paths
path = NULL;
while (1)
{
path = FS_NextPath (path);
if (!path)
return NULL; // couldn't find one anywhere
Com_sprintf (name, sizeof(name), "%s/%s", path, gamename);
game_library = LoadLibrary (name);
if (game_library)
{
Com_DPrintf ("LoadLibrary (%s)\n",name);
break;
}
}
}
}
GetGameAPI = (void *)GetProcAddress (game_library, "GetGameAPI");
if (!GetGameAPI)
{
Sys_UnloadGame ();
return NULL;
}
return GetGameAPI (parms);
}
//=======================================================================
/*
==================
ParseCommandLine
==================
*/
void ParseCommandLine (LPSTR lpCmdLine)
{
argc = 1;
argv[0] = "exe";
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++;
}
}
}
}
/*
==================
WinMain
==================
*/
HINSTANCE global_hInstance;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
MSG msg;
int time, oldtime, newtime;
char *cddir;
/* previous instances do not exist in Win32 */
if (hPrevInstance)
return 0;
global_hInstance = hInstance;
ParseCommandLine (lpCmdLine);
// if we find the CD, add a +set cddir xxx command line
cddir = Sys_ScanForCD ();
if (cddir && argc < MAX_NUM_ARGVS - 3)
{
int i;
// don't override a cddir on the command line
for (i=0 ; i<argc ; i++)
if (!strcmp(argv[i], "cddir"))
break;
if (i == argc)
{
argv[argc++] = "+set";
argv[argc++] = "cddir";
argv[argc++] = cddir;
}
}
Qcommon_Init (argc, argv);
oldtime = Sys_Milliseconds ();
/* main window message loop */
while (1)
{
// if at a full screen console, don't update unless needed
if (Minimized || (dedicated && dedicated->value) )
{
Sleep (1);
}
while (PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE))
{
if (!GetMessage (&msg, NULL, 0, 0))
Com_Quit ();
sys_msg_time = msg.time;
TranslateMessage (&msg);
DispatchMessage (&msg);
}
do
{
newtime = Sys_Milliseconds ();
time = newtime - oldtime;
} while (time < 1);
// Con_Printf ("time:%5.2f - %5.2f = %5.2f\n", newtime, oldtime, time);
// _controlfp( ~( _EM_ZERODIVIDE /*| _EM_INVALID*/ ), _MCW_EM );
_controlfp( _PC_24, _MCW_PC );
Qcommon_Frame (time);
oldtime = newtime;
}
// never gets here
return TRUE;
}