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
31 cvar_t sys_usetimegettime = {CVAR_SAVE, "sys_usetimegettime", "1", "use windows timeGetTime function (which has issues on some motherboards) for timing rather than QueryPerformanceCounter timer (which has issues on multicore/multiprocessor machines and processors which are designed to conserve power)"};
33 HANDLE hinput, houtput;
37 static HANDLE heventParent;
38 static HANDLE heventChild;
42 ===============================================================================
46 ===============================================================================
49 void Sys_Error (const char *error, ...)
52 char text[MAX_INPUTLINE];
53 static int in_sys_error0 = 0;
54 static int in_sys_error1 = 0;
55 static int in_sys_error2 = 0;
56 static int in_sys_error3 = 0;
58 va_start (argptr, error);
59 dpvsnprintf (text, sizeof (text), error, argptr);
62 Con_Printf ("Quake Error: %s\n", text);
64 // close video so the message box is visible, unless we already tried that
65 if (!in_sys_error0 && cls.state != ca_dedicated)
71 if (!in_sys_error3 && cls.state != ca_dedicated)
74 MessageBox(NULL, text, "Quake Error", MB_OK | MB_SETFOREGROUND | MB_ICONSTOP);
83 // shut down QHOST hooks if necessary
93 void Sys_Shutdown (void)
98 if (cls.state == ca_dedicated)
101 // shut down QHOST hooks if necessary
105 void Sys_PrintToTerminal(const char *text)
108 extern HANDLE houtput;
109 if (cls.state == ca_dedicated)
110 WriteFile(houtput, text, (DWORD) strlen(text), &dummy, NULL);
118 double Sys_DoubleTime (void)
120 static int first = true;
121 static double oldtime = 0.0, curtime = 0.0;
123 // LordHavoc: note to people modifying this code, DWORD is specifically defined as an unsigned 32bit number, therefore the 65536.0 * 65536.0 is fine.
124 if (sys_usetimegettime.integer)
126 static int firsttimegettime = true;
129 // Windows 95/98/ME/NT/2000/XP
131 // reasonable accuracy (millisecond)
133 // wraps around every 47 days or so (but this is non-fatal to us, odd times are rejected, only causes a one frame stutter)
135 // make sure the timer is high precision, otherwise different versions of windows have varying accuracy
136 if (firsttimegettime)
139 firsttimegettime = false;
142 newtime = (double) timeGetTime () / 1000.0;
146 // QueryPerformanceCounter
148 // Windows 95/98/ME/NT/2000/XP
150 // very accurate (CPU cycles)
152 // does not necessarily match realtime too well (tends to get faster and faster in win98)
153 // wraps around occasionally on some platforms (depends on CPU speed and probably other unknown factors)
155 LARGE_INTEGER PerformanceFreq;
156 LARGE_INTEGER PerformanceCount;
158 if (!QueryPerformanceFrequency (&PerformanceFreq))
160 Con_Printf ("No hardware timer available\n");
161 // fall back to timeGetTime
162 Cvar_SetValueQuick(&sys_usetimegettime, true);
163 return Sys_DoubleTime();
165 QueryPerformanceCounter (&PerformanceCount);
168 timescale = 1.0 / ((double) PerformanceFreq.u.LowPart + (double) PerformanceFreq.u.HighPart * 65536.0 * 65536.0);
169 newtime = ((double) PerformanceCount.u.LowPart + (double) PerformanceCount.u.HighPart * 65536.0 * 65536.0) * timescale;
171 timescale = 1.0 / ((double) PerformanceFreq.LowPart + (double) PerformanceFreq.HighPart * 65536.0 * 65536.0);
172 newtime = ((double) PerformanceCount.LowPart + (double) PerformanceCount.HighPart * 65536.0 * 65536.0) * timescale;
182 if (newtime < oldtime)
184 // warn if it's significant
185 if (newtime - oldtime < -0.01)
186 Con_Printf("Sys_DoubleTime: time stepped backwards (went from %f to %f, difference %f)\n", oldtime, newtime, newtime - oldtime);
189 curtime += newtime - oldtime;
196 char *Sys_ConsoleInput (void)
198 static char text[MAX_INPUTLINE];
200 INPUT_RECORD recs[1024];
202 DWORD numread, numevents, dummy;
204 if (cls.state != ca_dedicated)
210 if (!GetNumberOfConsoleInputEvents (hinput, &numevents))
211 Sys_Error ("Error getting # of console events");
216 if (!ReadConsoleInput(hinput, recs, 1, &numread))
217 Sys_Error ("Error reading console input");
220 Sys_Error ("Couldn't read console input");
222 if (recs[0].EventType == KEY_EVENT)
224 if (!recs[0].Event.KeyEvent.bKeyDown)
226 ch = recs[0].Event.KeyEvent.uChar.AsciiChar;
231 WriteFile(houtput, "\r\n", 2, &dummy, NULL);
243 WriteFile(houtput, "\b \b", 3, &dummy, NULL);
253 WriteFile(houtput, &ch, 1, &dummy, NULL);
255 len = (len + 1) & 0xff;
268 void Sys_Sleep(int milliseconds)
270 if (milliseconds < 1)
275 char *Sys_GetClipboardData (void)
280 if (OpenClipboard (NULL) != 0)
282 HANDLE hClipboardData;
284 if ((hClipboardData = GetClipboardData (CF_TEXT)) != 0)
286 if ((cliptext = GlobalLock (hClipboardData)) != 0)
289 allocsize = GlobalSize (hClipboardData) + 1;
290 data = Z_Malloc (allocsize);
291 strlcpy (data, cliptext, allocsize);
292 GlobalUnlock (hClipboardData);
300 void Sys_InitConsole (void)
304 // initialize the windows dedicated server console if needed
305 tevent = CreateEvent(NULL, false, false, NULL);
308 Sys_Error ("Couldn't create event");
310 // LordHavoc: can't check cls.state because it hasn't been initialized yet
311 // if (cls.state == ca_dedicated)
312 if (COM_CheckParm("-dedicated"))
314 if (!AllocConsole ())
315 Sys_Error ("Couldn't create dedicated server console");
317 hinput = GetStdHandle (STD_INPUT_HANDLE);
318 houtput = GetStdHandle (STD_OUTPUT_HANDLE);
323 // give QHOST a chance to hook into the console
324 if ((t = COM_CheckParm ("-HFILE")) > 0)
327 hFile = (HANDLE)atoi (com_argv[t+1]);
330 if ((t = COM_CheckParm ("-HPARENT")) > 0)
333 heventParent = (HANDLE)atoi (com_argv[t+1]);
336 if ((t = COM_CheckParm ("-HCHILD")) > 0)
339 heventChild = (HANDLE)atoi (com_argv[t+1]);
342 InitConProc (hFile, heventParent, heventChild);
345 // because sound is off until we become active
349 void Sys_Init_Commands (void)
351 Cvar_RegisterVariable(&sys_usetimegettime);
355 ==============================================================================
359 ==============================================================================
368 HINSTANCE global_hInstance;
369 const char *argv[MAX_NUM_ARGVS];
370 char program_name[MAX_OSPATH];
372 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
374 MEMORYSTATUS lpBuffer;
376 /* previous instances do not exist in Win32 */
380 global_hInstance = hInstance;
382 lpBuffer.dwLength = sizeof(MEMORYSTATUS);
383 GlobalMemoryStatus (&lpBuffer);
385 program_name[sizeof(program_name)-1] = 0;
386 GetModuleFileNameA(NULL, program_name, sizeof(program_name) - 1);
390 argv[0] = program_name;
392 // FIXME: this tokenizer is rather redundent, call a more general one
393 while (*lpCmdLine && (com_argc < MAX_NUM_ARGVS))
395 while (*lpCmdLine && *lpCmdLine <= ' ')
401 if (*lpCmdLine == '\"')
405 argv[com_argc] = lpCmdLine;
407 while (*lpCmdLine && (*lpCmdLine != '\"'))
413 argv[com_argc] = lpCmdLine;
415 while (*lpCmdLine && *lpCmdLine > ' ')
428 /* return success of application */