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
30 extern void S_BlockSound (void);
32 cvar_t sys_usetimegettime = {CVAR_SAVE, "sys_usetimegettime", "1"};
34 // # of seconds to wait on Sys_Error running dedicated before exiting
35 #define CONSOLE_ERROR_TIMEOUT 60.0
36 // sleep time on pause or minimization
37 #define PAUSE_SLEEP 50
38 // sleep time when not focus
39 #define NOT_FOCUS_SLEEP 20
41 static qboolean sc_return_on_enter = false;
42 HANDLE hinput, houtput;
46 static HANDLE heventParent;
47 static HANDLE heventChild;
51 ===============================================================================
55 ===============================================================================
58 void SleepUntilInput (int time);
60 void Sys_Error (const char *error, ...)
64 static int in_sys_error0 = 0;
65 static int in_sys_error1 = 0;
66 static int in_sys_error2 = 0;
67 static int in_sys_error3 = 0;
69 va_start (argptr, error);
70 vsnprintf (text, sizeof (text), error, argptr);
73 Con_Printf ("Quake Error: %s\n", text);
75 // close video so the message box is visible, unless we already tried that
76 if (!in_sys_error0 && cls.state != ca_dedicated)
82 if (!in_sys_error3 && cls.state != ca_dedicated)
85 MessageBox(NULL, text, "Quake Error", MB_OK | MB_SETFOREGROUND | MB_ICONSTOP);
94 // shut down QHOST hooks if necessary
104 void Sys_Shutdown (void)
107 CloseHandle (tevent);
109 if (cls.state == ca_dedicated)
112 // shut down QHOST hooks if necessary
116 void Sys_PrintToTerminal(const char *text)
119 extern HANDLE houtput;
120 if (cls.state == ca_dedicated)
121 WriteFile(houtput, text, strlen (text), &dummy, NULL);
129 double Sys_DoubleTime (void)
131 static int first = true;
132 static double oldtime = 0.0, curtime = 0.0;
134 // LordHavoc: note to people modifying this code, DWORD is specifically defined as an unsigned 32bit number, therefore the 65536.0 * 65536.0 is fine.
135 if (sys_usetimegettime.integer)
137 static int firsttimegettime = true;
140 // Windows 95/98/ME/NT/2000/XP
142 // reasonable accuracy (millisecond)
144 // wraps around every 47 days or so (but this is non-fatal to us, odd times are rejected, only causes a one frame stutter)
146 // make sure the timer is high precision, otherwise different versions of windows have varying accuracy
147 if (firsttimegettime)
150 firsttimegettime = false;
153 newtime = (double) timeGetTime () / 1000.0;
157 // QueryPerformanceCounter
159 // Windows 95/98/ME/NT/2000/XP
161 // very accurate (CPU cycles)
163 // does not necessarily match realtime too well (tends to get faster and faster in win98)
164 // wraps around occasionally on some platforms (depends on CPU speed and probably other unknown factors)
166 LARGE_INTEGER PerformanceFreq;
167 LARGE_INTEGER PerformanceCount;
169 if (!QueryPerformanceFrequency (&PerformanceFreq))
170 Sys_Error ("No hardware timer available");
171 QueryPerformanceCounter (&PerformanceCount);
174 timescale = 1.0 / ((double) PerformanceFreq.u.LowPart + (double) PerformanceFreq.u.HighPart * 65536.0 * 65536.0);
175 newtime = ((double) PerformanceCount.u.LowPart + (double) PerformanceCount.u.HighPart * 65536.0 * 65536.0) * timescale;
177 timescale = 1.0 / ((double) PerformanceFreq.LowPart + (double) PerformanceFreq.HighPart * 65536.0 * 65536.0);
178 newtime = ((double) PerformanceCount.LowPart + (double) PerformanceCount.HighPart * 65536.0 * 65536.0) * timescale;
188 if (newtime < oldtime)
190 // warn if it's significant
191 if (newtime - oldtime < -0.01)
192 Con_Printf("Sys_DoubleTime: time stepped backwards (went from %f to %f, difference %f)\n", oldtime, newtime, newtime - oldtime);
195 curtime += newtime - oldtime;
202 char *Sys_ConsoleInput (void)
204 static char text[256];
206 INPUT_RECORD recs[1024];
208 DWORD numread, numevents, dummy;
210 if (cls.state != ca_dedicated)
216 if (!GetNumberOfConsoleInputEvents (hinput, &numevents))
217 Sys_Error ("Error getting # of console events");
222 if (!ReadConsoleInput(hinput, recs, 1, &numread))
223 Sys_Error ("Error reading console input");
226 Sys_Error ("Couldn't read console input");
228 if (recs[0].EventType == KEY_EVENT)
230 if (!recs[0].Event.KeyEvent.bKeyDown)
232 ch = recs[0].Event.KeyEvent.uChar.AsciiChar;
237 WriteFile(houtput, "\r\n", 2, &dummy, NULL);
245 else if (sc_return_on_enter)
247 // special case to allow exiting from the error handler on Enter
256 WriteFile(houtput, "\b \b", 3, &dummy, NULL);
266 WriteFile(houtput, &ch, 1, &dummy, NULL);
268 len = (len + 1) & 0xff;
281 void Sys_Sleep(int milliseconds)
283 if (milliseconds < 1)
288 char *Sys_GetClipboardData (void)
293 if (OpenClipboard (NULL) != 0)
295 HANDLE hClipboardData;
297 if ((hClipboardData = GetClipboardData (CF_TEXT)) != 0)
299 if ((cliptext = GlobalLock (hClipboardData)) != 0)
301 data = malloc (GlobalSize(hClipboardData)+1);
302 strcpy (data, cliptext);
303 GlobalUnlock (hClipboardData);
312 ==============================================================================
316 ==============================================================================
320 void SleepUntilInput (int time)
322 MsgWaitForMultipleObjects(1, &tevent, false, time, QS_ALLINPUT);
331 HINSTANCE global_hInstance;
332 const char *argv[MAX_NUM_ARGVS];
333 char program_name[MAX_OSPATH];
335 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
337 double frameoldtime, framenewtime;
338 MEMORYSTATUS lpBuffer;
341 /* previous instances do not exist in Win32 */
345 global_hInstance = hInstance;
347 lpBuffer.dwLength = sizeof(MEMORYSTATUS);
348 GlobalMemoryStatus (&lpBuffer);
350 program_name[sizeof(program_name)-1] = 0;
351 GetModuleFileNameA(NULL, program_name, sizeof(program_name) - 1);
355 argv[0] = program_name;
357 // FIXME: this tokenizer is rather redundent, call a more general one
358 while (*lpCmdLine && (com_argc < MAX_NUM_ARGVS))
360 while (*lpCmdLine && *lpCmdLine <= ' ')
366 if (*lpCmdLine == '\"')
370 argv[com_argc] = lpCmdLine;
372 while (*lpCmdLine && (*lpCmdLine != '\"'))
378 argv[com_argc] = lpCmdLine;
380 while (*lpCmdLine && *lpCmdLine > ' ')
391 Sys_Shared_EarlyInit();
393 Cvar_RegisterVariable(&sys_usetimegettime);
395 tevent = CreateEvent(NULL, false, false, NULL);
398 Sys_Error ("Couldn't create event");
400 // LordHavoc: can't check cls.state because it hasn't been initialized yet
401 // if (cls.state == ca_dedicated)
402 if (COM_CheckParm("-dedicated"))
404 if (!AllocConsole ())
405 Sys_Error ("Couldn't create dedicated server console");
407 hinput = GetStdHandle (STD_INPUT_HANDLE);
408 houtput = GetStdHandle (STD_OUTPUT_HANDLE);
410 // give QHOST a chance to hook into the console
411 if ((t = COM_CheckParm ("-HFILE")) > 0)
414 hFile = (HANDLE)atoi (com_argv[t+1]);
417 if ((t = COM_CheckParm ("-HPARENT")) > 0)
420 heventParent = (HANDLE)atoi (com_argv[t+1]);
423 if ((t = COM_CheckParm ("-HCHILD")) > 0)
426 heventChild = (HANDLE)atoi (com_argv[t+1]);
429 InitConProc (hFile, heventParent, heventChild);
432 // because sound is off until we become active
437 Sys_Shared_LateInit();
439 frameoldtime = Sys_DoubleTime ();
441 /* main window message loop */
444 if (cls.state != ca_dedicated)
446 // yield the CPU for a little while when paused, minimized, or not the focus
447 if ((cl.paused && !vid_activewindow) || vid_hidden)
449 SleepUntilInput (PAUSE_SLEEP);
450 scr_skipupdate = 1; // no point in bothering to draw
452 else if (!vid_activewindow)
453 SleepUntilInput (NOT_FOCUS_SLEEP);
456 framenewtime = Sys_DoubleTime ();
457 Host_Frame (framenewtime - frameoldtime);
458 frameoldtime = framenewtime;
461 /* return success of application */