fix mouse in win32, I had forgotten to update a lot of code
[xonotic/darkplaces.git] / sys_win.c
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
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.
8
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.
12
13 See the GNU General Public License for more details.
14
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.
18
19 */
20 // sys_win.c -- Win32 system interface code
21
22 #define WIN32_USETIMEGETTIME 0
23
24 #include "quakedef.h"
25 #include "winquake.h"
26 #include "errno.h"
27 #include "resource.h"
28 #include "conproc.h"
29 #include "direct.h"
30
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
37
38 int                     starttime;
39
40 static qboolean         sc_return_on_enter = false;
41 HANDLE                          hinput, houtput;
42
43 static HANDLE   tevent;
44 static HANDLE   hFile;
45 static HANDLE   heventParent;
46 static HANDLE   heventChild;
47
48 /*
49 ===============================================================================
50
51 QFile IO
52
53 ===============================================================================
54 */
55
56 // LordHavoc: 256 pak files (was 10)
57 #define MAX_HANDLES             256
58 QFile   *sys_handles[MAX_HANDLES];
59
60 int             findhandle (void)
61 {
62         int             i;
63
64         for (i=1 ; i<MAX_HANDLES ; i++)
65                 if (!sys_handles[i])
66                         return i;
67         Sys_Error ("out of handles");
68         return -1;
69 }
70
71 /*
72 ================
73 Sys_FileLength
74 ================
75 */
76 int Sys_FileLength (QFile *f)
77 {
78         int             pos;
79         int             end;
80
81         pos = Qtell (f);
82         Qseek (f, 0, SEEK_END);
83         end = Qtell (f);
84         Qseek (f, pos, SEEK_SET);
85
86         return end;
87 }
88
89 int Sys_FileOpenRead (char *path, int *hndl)
90 {
91         QFile   *f;
92         int             i, retval;
93
94         i = findhandle ();
95
96         f = Qopen(path, "rbz");
97
98         if (!f)
99         {
100                 *hndl = -1;
101                 retval = -1;
102         }
103         else
104         {
105                 sys_handles[i] = f;
106                 *hndl = i;
107                 retval = Sys_FileLength(f);
108         }
109
110         return retval;
111 }
112
113 int Sys_FileOpenWrite (char *path)
114 {
115         QFile   *f;
116         int             i;
117
118         i = findhandle ();
119
120         f = Qopen(path, "wb");
121         if (!f)
122         {
123                 Con_Printf("Sys_FileOpenWrite: Error opening %s: %s", path, strerror(errno));
124                 return 0;
125         }
126         sys_handles[i] = f;
127
128         return i;
129 }
130
131 void Sys_FileClose (int handle)
132 {
133         Qclose (sys_handles[handle]);
134         sys_handles[handle] = NULL;
135 }
136
137 void Sys_FileSeek (int handle, int position)
138 {
139         Qseek (sys_handles[handle], position, SEEK_SET);
140 }
141
142 int Sys_FileRead (int handle, void *dest, int count)
143 {
144         return Qread (sys_handles[handle], dest, count);
145 }
146
147 int Sys_FileWrite (int handle, void *data, int count)
148 {
149         return Qwrite (sys_handles[handle], data, count);
150 }
151
152 int     Sys_FileTime (char *path)
153 {
154         QFile   *f;
155
156         f = Qopen(path, "rb");
157         if (f)
158         {
159                 Qclose(f);
160                 return 1;
161         }
162
163         return -1;
164 }
165
166 void Sys_mkdir (char *path)
167 {
168         _mkdir (path);
169 }
170
171
172 /*
173 ===============================================================================
174
175 SYSTEM IO
176
177 ===============================================================================
178 */
179
180 void SleepUntilInput (int time);
181
182 void Sys_Error (char *error, ...)
183 {
184         va_list         argptr;
185         char            text[1024], text2[1024];
186         char            *text3 = "Press Enter to exit\n";
187         char            *text4 = "***********************************\n";
188         char            *text5 = "\n";
189         DWORD           dummy;
190         double          starttime;
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;
195
196         if (!in_sys_error3)
197                 in_sys_error3 = 1;
198
199         va_start (argptr, error);
200         vsprintf (text, error, argptr);
201         va_end (argptr);
202
203         if (cls.state == ca_dedicated)
204         {
205                 va_start (argptr, error);
206                 vsprintf (text, error, argptr);
207                 va_end (argptr);
208
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);
215
216
217                 starttime = Sys_DoubleTime ();
218                 sc_return_on_enter = true;      // so Enter will get us out of here
219
220                 while (!Sys_ConsoleInput () && ((Sys_DoubleTime () - starttime) < CONSOLE_ERROR_TIMEOUT))
221                         SleepUntilInput(1);
222         }
223         else
224         {
225         // switch to windowed so the message box is visible, unless we already
226         // tried that and failed
227                 if (!in_sys_error0)
228                 {
229                         in_sys_error0 = 1;
230                         VID_SetDefaultMode ();
231                         MessageBox(NULL, text, "Quake Error", MB_OK | MB_SETFOREGROUND | MB_ICONSTOP);
232                 }
233                 else
234                         MessageBox(NULL, text, "Double Quake Error", MB_OK | MB_SETFOREGROUND | MB_ICONSTOP);
235         }
236
237         if (!in_sys_error1)
238         {
239                 in_sys_error1 = 1;
240                 Host_Shutdown ();
241         }
242
243 // shut down QHOST hooks if necessary
244         if (!in_sys_error2)
245         {
246                 in_sys_error2 = 1;
247                 DeinitConProc ();
248         }
249
250         exit (1);
251 }
252
253 void Sys_Quit (void)
254 {
255         Host_Shutdown();
256
257         if (tevent)
258                 CloseHandle (tevent);
259
260         if (cls.state == ca_dedicated)
261                 FreeConsole ();
262
263 // shut down QHOST hooks if necessary
264         DeinitConProc ();
265
266         exit (0);
267 }
268
269
270 /*
271 ================
272 Sys_DoubleTime
273 ================
274 */
275 double Sys_DoubleTime (void)
276 {
277         static int first = true;
278         static double oldtime = 0.0, curtime = 0.0;
279         double newtime;
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
282         // timeGetTime
283         // platform:
284         // Windows 95/98/ME/NT/2000
285         // features:
286         // reasonable accuracy (millisecond)
287         // issues:
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)
289
290         // make sure the timer is high precision, otherwise different versions of windows have varying accuracy
291         if (first)
292                 timeBeginPeriod (1);
293
294         newtime = (double) timeGetTime () / 1000.0;
295 #else
296         // QueryPerformanceCounter
297         // platform:
298         // Windows 95/98/ME/NT/2000
299         // features:
300         // very accurate (CPU cycles)
301         // known issues:
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;
307
308         if (!QueryPerformanceFrequency (&PerformanceFreq))
309                 Sys_Error ("No hardware timer available");
310         QueryPerformanceCounter (&PerformanceCount);
311
312 #ifdef __BORLANDC__
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;
315 #else
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;
318 #endif
319 #endif
320
321         if (first)
322         {
323                 first = false;
324                 oldtime = newtime;
325         }
326
327         if (newtime < oldtime)
328                 Con_Printf("Sys_DoubleTime: time stepped backwards (went from %f to %f, difference %f)\n", oldtime, newtime, newtime - oldtime);
329         else
330                 curtime += newtime - oldtime;
331         oldtime = newtime;
332
333         return curtime;
334 }
335
336
337 char *Sys_ConsoleInput (void)
338 {
339         static char text[256];
340         static int len;
341         INPUT_RECORD recs[1024];
342         int ch;
343         DWORD numread, numevents, dummy;
344
345         if (cls.state != ca_dedicated)
346                 return NULL;
347
348
349         for ( ;; )
350         {
351                 if (!GetNumberOfConsoleInputEvents (hinput, &numevents))
352                         Sys_Error ("Error getting # of console events");
353
354                 if (numevents <= 0)
355                         break;
356
357                 if (!ReadConsoleInput(hinput, recs, 1, &numread))
358                         Sys_Error ("Error reading console input");
359
360                 if (numread != 1)
361                         Sys_Error ("Couldn't read console input");
362
363                 if (recs[0].EventType == KEY_EVENT)
364                 {
365                         if (!recs[0].Event.KeyEvent.bKeyDown)
366                         {
367                                 ch = recs[0].Event.KeyEvent.uChar.AsciiChar;
368
369                                 switch (ch)
370                                 {
371                                         case '\r':
372                                                 WriteFile(houtput, "\r\n", 2, &dummy, NULL);
373
374                                                 if (len)
375                                                 {
376                                                         text[len] = 0;
377                                                         len = 0;
378                                                         return text;
379                                                 }
380                                                 else if (sc_return_on_enter)
381                                                 {
382                                                 // special case to allow exiting from the error handler on Enter
383                                                         text[0] = '\r';
384                                                         len = 0;
385                                                         return text;
386                                                 }
387
388                                                 break;
389
390                                         case '\b':
391                                                 WriteFile(houtput, "\b \b", 3, &dummy, NULL);
392                                                 if (len)
393                                                 {
394                                                         len--;
395                                                 }
396                                                 break;
397
398                                         default:
399                                                 if (ch >= ' ')
400                                                 {
401                                                         WriteFile(houtput, &ch, 1, &dummy, NULL);
402                                                         text[len] = ch;
403                                                         len = (len + 1) & 0xff;
404                                                 }
405
406                                                 break;
407
408                                 }
409                         }
410                 }
411         }
412
413         return NULL;
414 }
415
416 void Sys_Sleep (void)
417 {
418         Sleep (1);
419 }
420
421
422 void Sys_SendKeyEvents (void)
423 {
424         MSG msg;
425
426         while (PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE))
427         {
428         // we always update if there are any event, even if we're paused
429                 scr_skipupdate = 0;
430
431                 if (!GetMessage (&msg, NULL, 0, 0))
432                         Sys_Quit ();
433
434                 TranslateMessage (&msg);
435                 DispatchMessage (&msg);
436         }
437 }
438
439
440 /*
441 ==============================================================================
442
443 WINDOWS CRAP
444
445 ==============================================================================
446 */
447
448
449 void SleepUntilInput (int time)
450 {
451         MsgWaitForMultipleObjects(1, &tevent, false, time, QS_ALLINPUT);
452 }
453
454
455 /*
456 ==================
457 WinMain
458 ==================
459 */
460 HINSTANCE       global_hInstance;
461 int                     global_nCmdShow;
462 char            *argv[MAX_NUM_ARGVS];
463 static char     *empty_string = "";
464
465 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
466 {
467         double                  frameoldtime, framenewtime;
468         MEMORYSTATUS    lpBuffer;
469         static  char    cwd[1024];
470         int                             t;
471
472         /* previous instances do not exist in Win32 */
473         if (hPrevInstance)
474                 return 0;
475
476         global_hInstance = hInstance;
477         global_nCmdShow = nCmdShow;
478
479         lpBuffer.dwLength = sizeof(MEMORYSTATUS);
480         GlobalMemoryStatus (&lpBuffer);
481
482         if (!GetCurrentDirectory (sizeof(cwd), cwd))
483                 Sys_Error ("Couldn't determine current directory");
484
485         if (cwd[strlen(cwd)-1] == '/')
486                 cwd[strlen(cwd)-1] = 0;
487
488         memset(&host_parms, 0, sizeof(host_parms));
489
490         host_parms.basedir = cwd;
491
492         host_parms.argc = 1;
493         argv[0] = empty_string;
494
495         while (*lpCmdLine && (host_parms.argc < MAX_NUM_ARGVS))
496         {
497                 while (*lpCmdLine && ((*lpCmdLine <= 32) || (*lpCmdLine > 126)))
498                         lpCmdLine++;
499
500                 if (*lpCmdLine)
501                 {
502                         argv[host_parms.argc] = lpCmdLine;
503                         host_parms.argc++;
504
505                         while (*lpCmdLine && ((*lpCmdLine > 32) && (*lpCmdLine <= 126)))
506                                 lpCmdLine++;
507
508                         if (*lpCmdLine)
509                         {
510                                 *lpCmdLine = 0;
511                                 lpCmdLine++;
512                         }
513
514                 }
515         }
516
517         host_parms.argv = argv;
518
519         COM_InitArgv (host_parms.argc, host_parms.argv);
520
521         host_parms.argc = com_argc;
522         host_parms.argv = com_argv;
523
524         Sys_Shared_EarlyInit();
525
526         tevent = CreateEvent(NULL, false, false, NULL);
527
528         if (!tevent)
529                 Sys_Error ("Couldn't create event");
530
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"))
534         {
535                 if (!AllocConsole ())
536                         Sys_Error ("Couldn't create dedicated server console");
537
538                 hinput = GetStdHandle (STD_INPUT_HANDLE);
539                 houtput = GetStdHandle (STD_OUTPUT_HANDLE);
540
541         // give QHOST a chance to hook into the console
542                 if ((t = COM_CheckParm ("-HFILE")) > 0)
543                 {
544                         if (t < com_argc)
545                                 hFile = (HANDLE)atoi (com_argv[t+1]);
546                 }
547
548                 if ((t = COM_CheckParm ("-HPARENT")) > 0)
549                 {
550                         if (t < com_argc)
551                                 heventParent = (HANDLE)atoi (com_argv[t+1]);
552                 }
553
554                 if ((t = COM_CheckParm ("-HCHILD")) > 0)
555                 {
556                         if (t < com_argc)
557                                 heventChild = (HANDLE)atoi (com_argv[t+1]);
558                 }
559
560                 InitConProc (hFile, heventParent, heventChild);
561         }
562
563 // because sound is off until we become active
564         S_BlockSound ();
565
566         Host_Init ();
567
568         Sys_Shared_LateInit();
569
570         frameoldtime = Sys_DoubleTime ();
571
572         /* main window message loop */
573         while (1)
574         {
575                 if (cls.state != ca_dedicated)
576                 {
577                 // yield the CPU for a little while when paused, minimized, or not the focus
578                         if ((cl.paused && !vid_activewindow) || vid_hidden)
579                         {
580                                 SleepUntilInput (PAUSE_SLEEP);
581                                 scr_skipupdate = 1;             // no point in bothering to draw
582                         }
583                         else if (!vid_activewindow)
584                                 SleepUntilInput (NOT_FOCUS_SLEEP);
585                 }
586
587                 framenewtime = Sys_DoubleTime ();
588                 Host_Frame (framenewtime - frameoldtime);
589                 frameoldtime = framenewtime;
590         }
591
592         /* return success of application */
593         return true;
594 }
595