2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 // sys_win.c -- Win32 system interface code
22 #define WIN32_USETIMEGETTIME 0
31 // # of seconds to wait on Sys_Error running dedicated before exiting
32 #define CONSOLE_ERROR_TIMEOUT 60.0
33 // sleep time on pause or minimization
34 #define PAUSE_SLEEP 50
35 // sleep time when not focus
36 #define NOT_FOCUS_SLEEP 20
40 static qboolean sc_return_on_enter = false;
41 HANDLE hinput, houtput;
45 static HANDLE heventParent;
46 static HANDLE heventChild;
49 ===============================================================================
53 ===============================================================================
56 // LordHavoc: 256 pak files (was 10)
57 #define MAX_HANDLES 256
58 QFile *sys_handles[MAX_HANDLES];
64 for (i=1 ; i<MAX_HANDLES ; i++)
67 Sys_Error ("out of handles");
76 int Sys_FileLength (QFile *f)
82 Qseek (f, 0, SEEK_END);
84 Qseek (f, pos, SEEK_SET);
89 int Sys_FileOpenRead (char *path, int *hndl)
96 f = Qopen(path, "rbz");
107 retval = Sys_FileLength(f);
113 int Sys_FileOpenWrite (char *path)
120 f = Qopen(path, "wb");
123 Con_Printf("Sys_FileOpenWrite: Error opening %s: %s", path, strerror(errno));
131 void Sys_FileClose (int handle)
133 Qclose (sys_handles[handle]);
134 sys_handles[handle] = NULL;
137 void Sys_FileSeek (int handle, int position)
139 Qseek (sys_handles[handle], position, SEEK_SET);
142 int Sys_FileRead (int handle, void *dest, int count)
144 return Qread (sys_handles[handle], dest, count);
147 int Sys_FileWrite (int handle, void *data, int count)
149 return Qwrite (sys_handles[handle], data, count);
152 int Sys_FileTime (char *path)
156 f = Qopen(path, "rb");
166 void Sys_mkdir (char *path)
173 ===============================================================================
177 ===============================================================================
180 void SleepUntilInput (int time);
182 void Sys_Error (char *error, ...)
185 char text[1024], text2[1024];
186 char *text3 = "Press Enter to exit\n";
187 char *text4 = "***********************************\n";
191 static int in_sys_error0 = 0;
192 static int in_sys_error1 = 0;
193 static int in_sys_error2 = 0;
194 static int in_sys_error3 = 0;
199 va_start (argptr, error);
200 vsprintf (text, error, argptr);
203 if (cls.state == ca_dedicated)
205 va_start (argptr, error);
206 vsprintf (text, error, argptr);
209 sprintf (text2, "ERROR: %s\n", text);
210 WriteFile (houtput, text5, strlen (text5), &dummy, NULL);
211 WriteFile (houtput, text4, strlen (text4), &dummy, NULL);
212 WriteFile (houtput, text2, strlen (text2), &dummy, NULL);
213 WriteFile (houtput, text3, strlen (text3), &dummy, NULL);
214 WriteFile (houtput, text4, strlen (text4), &dummy, NULL);
217 starttime = Sys_DoubleTime ();
218 sc_return_on_enter = true; // so Enter will get us out of here
220 while (!Sys_ConsoleInput () && ((Sys_DoubleTime () - starttime) < CONSOLE_ERROR_TIMEOUT))
225 // switch to windowed so the message box is visible, unless we already
226 // tried that and failed
230 VID_SetDefaultMode ();
231 MessageBox(NULL, text, "Quake Error", MB_OK | MB_SETFOREGROUND | MB_ICONSTOP);
234 MessageBox(NULL, text, "Double Quake Error", MB_OK | MB_SETFOREGROUND | MB_ICONSTOP);
243 // shut down QHOST hooks if necessary
258 CloseHandle (tevent);
260 if (cls.state == ca_dedicated)
263 // shut down QHOST hooks if necessary
275 double Sys_DoubleTime (void)
277 static int first = true;
278 static double oldtime = 0.0, curtime = 0.0;
280 // LordHavoc: note to people modifying this code, DWORD is specifically defined as an unsigned 32bit number, therefore the 65536.0 * 65536.0 is fine.
281 #if WIN32_USETIMEGETTIME
284 // Windows 95/98/ME/NT/2000
286 // reasonable accuracy (millisecond)
288 // wraps around every 47 days or so (but this is non-fatal to us, odd times are rejected, only causes a one frame stutter)
290 // make sure the timer is high precision, otherwise different versions of windows have varying accuracy
294 newtime = (double) timeGetTime () / 1000.0;
296 // QueryPerformanceCounter
298 // Windows 95/98/ME/NT/2000
300 // very accurate (CPU cycles)
302 // does not necessarily match realtime too well (tends to get faster and faster in win98)
303 // wraps around occasionally on some platforms (depends on CPU speed and probably other unknown factors)
304 static double timescale = 0.0;
305 LARGE_INTEGER PerformanceFreq;
306 LARGE_INTEGER PerformanceCount;
308 if (!QueryPerformanceFrequency (&PerformanceFreq))
309 Sys_Error ("No hardware timer available");
310 QueryPerformanceCounter (&PerformanceCount);
313 timescale = 1.0 / ((double) PerformanceFreq.u.LowPart + (double) PerformanceFreq.u.HighPart * 65536.0 * 65536.0);
314 newtime = ((double) PerformanceCount.u.LowPart + (double) PerformanceCount.u.HighPart * 65536.0 * 65536.0) * timescale;
316 timescale = 1.0 / ((double) PerformanceFreq.LowPart + (double) PerformanceFreq.HighPart * 65536.0 * 65536.0);
317 newtime = ((double) PerformanceCount.LowPart + (double) PerformanceCount.HighPart * 65536.0 * 65536.0) * timescale;
327 if (newtime < oldtime)
328 Con_Printf("Sys_DoubleTime: time stepped backwards (went from %f to %f, difference %f)\n", oldtime, newtime, newtime - oldtime);
330 curtime += newtime - oldtime;
337 char *Sys_ConsoleInput (void)
339 static char text[256];
341 INPUT_RECORD recs[1024];
343 DWORD numread, numevents, dummy;
345 if (cls.state != ca_dedicated)
351 if (!GetNumberOfConsoleInputEvents (hinput, &numevents))
352 Sys_Error ("Error getting # of console events");
357 if (!ReadConsoleInput(hinput, recs, 1, &numread))
358 Sys_Error ("Error reading console input");
361 Sys_Error ("Couldn't read console input");
363 if (recs[0].EventType == KEY_EVENT)
365 if (!recs[0].Event.KeyEvent.bKeyDown)
367 ch = recs[0].Event.KeyEvent.uChar.AsciiChar;
372 WriteFile(houtput, "\r\n", 2, &dummy, NULL);
380 else if (sc_return_on_enter)
382 // special case to allow exiting from the error handler on Enter
391 WriteFile(houtput, "\b \b", 3, &dummy, NULL);
401 WriteFile(houtput, &ch, 1, &dummy, NULL);
403 len = (len + 1) & 0xff;
416 void Sys_Sleep (void)
422 void Sys_SendKeyEvents (void)
426 while (PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE))
428 // we always update if there are any event, even if we're paused
431 if (!GetMessage (&msg, NULL, 0, 0))
434 TranslateMessage (&msg);
435 DispatchMessage (&msg);
441 ==============================================================================
445 ==============================================================================
449 void SleepUntilInput (int time)
451 MsgWaitForMultipleObjects(1, &tevent, false, time, QS_ALLINPUT);
460 HINSTANCE global_hInstance;
462 char *argv[MAX_NUM_ARGVS];
463 static char *empty_string = "";
465 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
467 double frameoldtime, framenewtime;
468 MEMORYSTATUS lpBuffer;
469 static char cwd[1024];
472 /* previous instances do not exist in Win32 */
476 global_hInstance = hInstance;
477 global_nCmdShow = nCmdShow;
479 lpBuffer.dwLength = sizeof(MEMORYSTATUS);
480 GlobalMemoryStatus (&lpBuffer);
482 if (!GetCurrentDirectory (sizeof(cwd), cwd))
483 Sys_Error ("Couldn't determine current directory");
485 if (cwd[strlen(cwd)-1] == '/')
486 cwd[strlen(cwd)-1] = 0;
488 memset(&host_parms, 0, sizeof(host_parms));
490 host_parms.basedir = cwd;
493 argv[0] = empty_string;
495 while (*lpCmdLine && (host_parms.argc < MAX_NUM_ARGVS))
497 while (*lpCmdLine && ((*lpCmdLine <= 32) || (*lpCmdLine > 126)))
502 argv[host_parms.argc] = lpCmdLine;
505 while (*lpCmdLine && ((*lpCmdLine > 32) && (*lpCmdLine <= 126)))
517 host_parms.argv = argv;
519 COM_InitArgv (host_parms.argc, host_parms.argv);
521 host_parms.argc = com_argc;
522 host_parms.argv = com_argv;
524 Sys_Shared_EarlyInit();
526 tevent = CreateEvent(NULL, false, false, NULL);
529 Sys_Error ("Couldn't create event");
531 // LordHavoc: can't check cls.state because it hasn't been initialized yet
532 // if (cls.state == ca_dedicated)
533 if (COM_CheckParm("-dedicated"))
535 if (!AllocConsole ())
536 Sys_Error ("Couldn't create dedicated server console");
538 hinput = GetStdHandle (STD_INPUT_HANDLE);
539 houtput = GetStdHandle (STD_OUTPUT_HANDLE);
541 // give QHOST a chance to hook into the console
542 if ((t = COM_CheckParm ("-HFILE")) > 0)
545 hFile = (HANDLE)atoi (com_argv[t+1]);
548 if ((t = COM_CheckParm ("-HPARENT")) > 0)
551 heventParent = (HANDLE)atoi (com_argv[t+1]);
554 if ((t = COM_CheckParm ("-HCHILD")) > 0)
557 heventChild = (HANDLE)atoi (com_argv[t+1]);
560 InitConProc (hFile, heventParent, heventChild);
563 // because sound is off until we become active
568 Sys_Shared_LateInit();
570 frameoldtime = Sys_DoubleTime ();
572 /* main window message loop */
575 if (cls.state != ca_dedicated)
577 // yield the CPU for a little while when paused, minimized, or not the focus
578 if ((cl.paused && !vid_activewindow) || vid_hidden)
580 SleepUntilInput (PAUSE_SLEEP);
581 scr_skipupdate = 1; // no point in bothering to draw
583 else if (!vid_activewindow)
584 SleepUntilInput (NOT_FOCUS_SLEEP);
587 framenewtime = Sys_DoubleTime ();
588 Host_Frame (framenewtime - frameoldtime);
589 frameoldtime = framenewtime;
592 /* return success of application */