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 #define CONSOLE_ERROR_TIMEOUT   60.0    // # of seconds to wait on Sys_Error running
  32                                                                                 //  dedicated before exiting
  33 #define PAUSE_SLEEP             50                              // sleep time on pause or minimization
  34 #define NOT_FOCUS_SLEEP 20                              // sleep time when not focus
  35
  36 int                     starttime;
  37 qboolean        ActiveApp, Minimized;
  38
  39 static qboolean         sc_return_on_enter = false;
  40 HANDLE                          hinput, houtput;
  41
  42 //static char                   *tracking_tag = "Clams & Mooses";
  43
  44 static HANDLE   tevent;
  45 static HANDLE   hFile;
  46 static HANDLE   heventParent;
  47 static HANDLE   heventChild;
  48
  49 /*
  50 ===============================================================================
  51
  52 QFile IO
  53
  54 ===============================================================================
  55 */
  56
  57 // LordHavoc: 256 pak files (was 10)
  58 #define MAX_HANDLES             256
  59 QFile   *sys_handles[MAX_HANDLES];
  60
  61 int             findhandle (void)
  62 {
  63         int             i;
  64
  65         for (i=1 ; i<MAX_HANDLES ; i++)
  66                 if (!sys_handles[i])
  67                         return i;
  68         Sys_Error ("out of handles");
  69         return -1;
  70 }
  71
  72 /*
  73 ================
  74 Sys_FileLength
  75 ================
  76 */
  77 int Sys_FileLength (QFile *f)
  78 {
  79         int             pos;
  80         int             end;
  81
  82         pos = Qtell (f);
  83         Qseek (f, 0, SEEK_END);
  84         end = Qtell (f);
  85         Qseek (f, pos, SEEK_SET);
  86
  87         return end;
  88 }
  89
  90 int Sys_FileOpenRead (char *path, int *hndl)
  91 {
  92         QFile   *f;
  93         int             i, retval;
  94
  95         i = findhandle ();
  96
  97         f = Qopen(path, "rbz");
  98
  99         if (!f)
 100         {
 101                 *hndl = -1;
 102                 retval = -1;
 103         }
 104         else
 105         {
 106                 sys_handles[i] = f;
 107                 *hndl = i;
 108                 retval = Sys_FileLength(f);
 109         }
 110
 111         return retval;
 112 }
 113
 114 int Sys_FileOpenWrite (char *path)
 115 {
 116         QFile   *f;
 117         int             i;
 118
 119         i = findhandle ();
 120
 121         f = Qopen(path, "wb");
 122         if (!f)
 123         {
 124                 Con_Printf("Sys_FileOpenWrite: Error opening %s: %s", path, strerror(errno));
 125                 return 0;
 126         }
 127         sys_handles[i] = f;
 128
 129         return i;
 130 }
 131
 132 void Sys_FileClose (int handle)
 133 {
 134         Qclose (sys_handles[handle]);
 135         sys_handles[handle] = NULL;
 136 }
 137
 138 void Sys_FileSeek (int handle, int position)
 139 {
 140         Qseek (sys_handles[handle], position, SEEK_SET);
 141 }
 142
 143 int Sys_FileRead (int handle, void *dest, int count)
 144 {
 145         return Qread (sys_handles[handle], dest, count);
 146 }
 147
 148 int Sys_FileWrite (int handle, void *data, int count)
 149 {
 150         return Qwrite (sys_handles[handle], data, count);
 151 }
 152
 153 int     Sys_FileTime (char *path)
 154 {
 155         QFile   *f;
 156
 157         f = Qopen(path, "rb");
 158         if (f)
 159         {
 160                 Qclose(f);
 161                 return 1;
 162         }
 163
 164         return -1;
 165 }
 166
 167 void Sys_mkdir (char *path)
 168 {
 169         _mkdir (path);
 170 }
 171
 172
 173 /*
 174 ===============================================================================
 175
 176 SYSTEM IO
 177
 178 ===============================================================================
 179 */
 180
 181 void Sys_Error (char *error, ...)
 182 {
 183         va_list         argptr;
 184         char            text[1024], text2[1024];
 185         char            *text3 = "Press Enter to exit\n";
 186         char            *text4 = "***********************************\n";
 187         char            *text5 = "\n";
 188         DWORD           dummy;
 189         double          starttime;
 190         static int      in_sys_error0 = 0;
 191         static int      in_sys_error1 = 0;
 192         static int      in_sys_error2 = 0;
 193         static int      in_sys_error3 = 0;
 194
 195         if (!in_sys_error3)
 196                 in_sys_error3 = 1;
 197
 198         va_start (argptr, error);
 199         vsprintf (text, error, argptr);
 200         va_end (argptr);
 201
 202         if (cls.state == ca_dedicated)
 203         {
 204                 va_start (argptr, error);
 205                 vsprintf (text, error, argptr);
 206                 va_end (argptr);
 207
 208                 sprintf (text2, "ERROR: %s\n", text);
 209                 WriteFile (houtput, text5, strlen (text5), &dummy, NULL);
 210                 WriteFile (houtput, text4, strlen (text4), &dummy, NULL);
 211                 WriteFile (houtput, text2, strlen (text2), &dummy, NULL);
 212                 WriteFile (houtput, text3, strlen (text3), &dummy, NULL);
 213                 WriteFile (houtput, text4, strlen (text4), &dummy, NULL);
 214
 215
 216                 starttime = Sys_DoubleTime ();
 217                 sc_return_on_enter = true;      // so Enter will get us out of here
 218
 219                 while (!Sys_ConsoleInput () && ((Sys_DoubleTime () - starttime) < CONSOLE_ERROR_TIMEOUT))
 220                 {
 221                 }
 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                 {
 235                         MessageBox(NULL, text, "Double Quake Error", MB_OK | MB_SETFOREGROUND | MB_ICONSTOP);
 236                 }
 237         }
 238
 239         if (!in_sys_error1)
 240         {
 241                 in_sys_error1 = 1;
 242                 Host_Shutdown ();
 243         }
 244
 245 // shut down QHOST hooks if necessary
 246         if (!in_sys_error2)
 247         {
 248                 in_sys_error2 = 1;
 249                 DeinitConProc ();
 250         }
 251
 252         exit (1);
 253 }
 254
 255 void Sys_Quit (void)
 256 {
 257
 258         Host_Shutdown();
 259
 260         if (tevent)
 261                 CloseHandle (tevent);
 262
 263         if (cls.state == ca_dedicated)
 264                 FreeConsole ();
 265
 266 // shut down QHOST hooks if necessary
 267         DeinitConProc ();
 268
 269         exit (0);
 270 }
 271
 272
 273 /*
 274 ================
 275 Sys_DoubleTime
 276 ================
 277 */
 278 double Sys_DoubleTime (void)
 279 {
 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         // none known
 289         static int first = true;
 290         static double oldtime = 0.0, basetime = 0.0, old = 0.0;
 291         double newtime, now;
 292
 293         now = (double) timeGetTime () + basetime;
 294
 295         if (first)
 296         {
 297                 first = false;
 298                 basetime = now;
 299                 now = 0;
 300         }
 301
 302         if (now < old)
 303         {
 304                 // wrapped
 305                 basetime += (65536.0 * 65536.0);
 306                 now += (65536.0 * 65536.0);
 307         }
 308         old = now;
 309
 310         newtime = now / 1000.0;
 311
 312         if (newtime < oldtime)
 313                 Sys_Error("Sys_DoubleTime: time running backwards??\n");
 314
 315         oldtime = newtime;
 316
 317         return newtime;
 318 #else
 319         // QueryPerformanceCounter
 320         // platform:
 321         // Windows 95/98/ME/NT/2000
 322         // features:
 323         // very accurate (CPU cycles)
 324         // known issues:
 325         // does not necessarily match realtime too well (tends to get faster and faster in win98)
 326         static int first = true;
 327         static double oldtime = 0.0, basetime = 0.0, timescale = 0.0;
 328         double newtime;
 329         LARGE_INTEGER PerformanceFreq;
 330         LARGE_INTEGER PerformanceCount;
 331
 332         if (first)
 333         {
 334                 if (!QueryPerformanceFrequency (&PerformanceFreq))
 335                         Sys_Error ("No hardware timer available");
 336
 337 #ifdef __BORLANDC__
 338                 timescale = 1.0 / ((double) PerformanceFreq.u.LowPart + (double) PerformanceFreq.u.HighPart * 65536.0 * 65536.0);
 339 #else
 340                 timescale = 1.0 / ((double) PerformanceFreq.LowPart + (double) PerformanceFreq.HighPart * 65536.0 * 65536.0);
 341 #endif
 342         }
 343
 344         QueryPerformanceCounter (&PerformanceCount);
 345
 346 #ifdef __BORLANDC__
 347         newtime = ((double) PerformanceCount.u.LowPart + (double) PerformanceCount.u.HighPart * 65536.0 * 65536.0) * timescale - basetime;
 348 #else
 349         newtime = ((double) PerformanceCount.LowPart + (double) PerformanceCount.HighPart * 65536.0 * 65536.0) * timescale - basetime;
 350 #endif
 351
 352         if (first)
 353         {
 354                 first = false;
 355                 basetime = newtime;
 356                 newtime = 0;
 357         }
 358
 359         if (newtime < oldtime)
 360                 Sys_Error("Sys_DoubleTime: time running backwards??\n");
 361
 362         oldtime = newtime;
 363
 364         return newtime;
 365 #endif
 366 }
 367
 368
 369 char *Sys_ConsoleInput (void)
 370 {
 371         static char text[256];
 372         static int len;
 373         INPUT_RECORD recs[1024];
 374         int ch;
 375         DWORD numread, numevents, dummy;
 376
 377         if (cls.state != ca_dedicated)
 378                 return NULL;
 379
 380
 381         for ( ;; )
 382         {
 383                 if (!GetNumberOfConsoleInputEvents (hinput, &numevents))
 384                         Sys_Error ("Error getting # of console events");
 385
 386                 if (numevents <= 0)
 387                         break;
 388
 389                 if (!ReadConsoleInput(hinput, recs, 1, &numread))
 390                         Sys_Error ("Error reading console input");
 391
 392                 if (numread != 1)
 393                         Sys_Error ("Couldn't read console input");
 394
 395                 if (recs[0].EventType == KEY_EVENT)
 396                 {
 397                         if (!recs[0].Event.KeyEvent.bKeyDown)
 398                         {
 399                                 ch = recs[0].Event.KeyEvent.uChar.AsciiChar;
 400
 401                                 switch (ch)
 402                                 {
 403                                         case '\r':
 404                                                 WriteFile(houtput, "\r\n", 2, &dummy, NULL);
 405
 406                                                 if (len)
 407                                                 {
 408                                                         text[len] = 0;
 409                                                         len = 0;
 410                                                         return text;
 411                                                 }
 412                                                 else if (sc_return_on_enter)
 413                                                 {
 414                                                 // special case to allow exiting from the error handler on Enter
 415                                                         text[0] = '\r';
 416                                                         len = 0;
 417                                                         return text;
 418                                                 }
 419
 420                                                 break;
 421
 422                                         case '\b':
 423                                                 WriteFile(houtput, "\b \b", 3, &dummy, NULL);
 424                                                 if (len)
 425                                                 {
 426                                                         len--;
 427                                                 }
 428                                                 break;
 429
 430                                         default:
 431                                                 if (ch >= ' ')
 432                                                 {
 433                                                         WriteFile(houtput, &ch, 1, &dummy, NULL);
 434                                                         text[len] = ch;
 435                                                         len = (len + 1) & 0xff;
 436                                                 }
 437
 438                                                 break;
 439
 440                                 }
 441                         }
 442                 }
 443         }
 444
 445         return NULL;
 446 }
 447
 448 void Sys_Sleep (void)
 449 {
 450         Sleep (1);
 451 }
 452
 453
 454 void Sys_SendKeyEvents (void)
 455 {
 456     MSG        msg;
 457
 458         while (PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE))
 459         {
 460         // we always update if there are any event, even if we're paused
 461                 scr_skipupdate = 0;
 462
 463                 if (!GetMessage (&msg, NULL, 0, 0))
 464                         Sys_Quit ();
 465
 466         TranslateMessage (&msg);
 467         DispatchMessage (&msg);
 468         }
 469 }
 470
 471
 472 /*
 473 ==============================================================================
 474
 475  WINDOWS CRAP
 476
 477 ==============================================================================
 478 */
 479
 480
 481 /*
 482 ==================
 483 WinMain
 484 ==================
 485 */
 486 void SleepUntilInput (int time)
 487 {
 488
 489         MsgWaitForMultipleObjects(1, &tevent, false, time, QS_ALLINPUT);
 490 }
 491
 492
 493 /*
 494 ==================
 495 WinMain
 496 ==================
 497 */
 498 HINSTANCE       global_hInstance;
 499 int                     global_nCmdShow;
 500 char            *argv[MAX_NUM_ARGVS];
 501 static char     *empty_string = "";
 502
 503 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
 504 {
 505         double                  oldtime, newtime;
 506         MEMORYSTATUS    lpBuffer;
 507         static  char    cwd[1024];
 508         int                             t;
 509
 510     /* previous instances do not exist in Win32 */
 511     if (hPrevInstance)
 512         return 0;
 513
 514         global_hInstance = hInstance;
 515         global_nCmdShow = nCmdShow;
 516
 517         lpBuffer.dwLength = sizeof(MEMORYSTATUS);
 518         GlobalMemoryStatus (&lpBuffer);
 519
 520         if (!GetCurrentDirectory (sizeof(cwd), cwd))
 521                 Sys_Error ("Couldn't determine current directory");
 522
 523         if (cwd[strlen(cwd)-1] == '/')
 524                 cwd[strlen(cwd)-1] = 0;
 525
 526         memset(&host_parms, 0, sizeof(host_parms));
 527
 528         host_parms.basedir = cwd;
 529
 530         host_parms.argc = 1;
 531         argv[0] = empty_string;
 532
 533         while (*lpCmdLine && (host_parms.argc < MAX_NUM_ARGVS))
 534         {
 535                 while (*lpCmdLine && ((*lpCmdLine <= 32) || (*lpCmdLine > 126)))
 536                         lpCmdLine++;
 537
 538                 if (*lpCmdLine)
 539                 {
 540                         argv[host_parms.argc] = lpCmdLine;
 541                         host_parms.argc++;
 542
 543                         while (*lpCmdLine && ((*lpCmdLine > 32) && (*lpCmdLine <= 126)))
 544                                 lpCmdLine++;
 545
 546                         if (*lpCmdLine)
 547                         {
 548                                 *lpCmdLine = 0;
 549                                 lpCmdLine++;
 550                         }
 551
 552                 }
 553         }
 554
 555         host_parms.argv = argv;
 556
 557         COM_InitArgv (host_parms.argc, host_parms.argv);
 558
 559         host_parms.argc = com_argc;
 560         host_parms.argv = com_argv;
 561
 562         Sys_Shared_EarlyInit();
 563
 564         tevent = CreateEvent(NULL, false, false, NULL);
 565
 566         if (!tevent)
 567                 Sys_Error ("Couldn't create event");
 568
 569         // LordHavoc: can't check cls.state because it hasn't been initialized yet
 570         // if (cls.state == ca_dedicated)
 571         if (COM_CheckParm("-dedicated"))
 572         {
 573                 if (!AllocConsole ())
 574                         Sys_Error ("Couldn't create dedicated server console");
 575
 576                 hinput = GetStdHandle (STD_INPUT_HANDLE);
 577                 houtput = GetStdHandle (STD_OUTPUT_HANDLE);
 578
 579         // give QHOST a chance to hook into the console
 580                 if ((t = COM_CheckParm ("-HFILE")) > 0)
 581                 {
 582                         if (t < com_argc)
 583                                 hFile = (HANDLE)atoi (com_argv[t+1]);
 584                 }
 585
 586                 if ((t = COM_CheckParm ("-HPARENT")) > 0)
 587                 {
 588                         if (t < com_argc)
 589                                 heventParent = (HANDLE)atoi (com_argv[t+1]);
 590                 }
 591
 592                 if ((t = COM_CheckParm ("-HCHILD")) > 0)
 593                 {
 594                         if (t < com_argc)
 595                                 heventChild = (HANDLE)atoi (com_argv[t+1]);
 596                 }
 597
 598                 InitConProc (hFile, heventParent, heventChild);
 599         }
 600
 601 // because sound is off until we become active
 602         S_BlockSound ();
 603
 604 #if WIN32_USETIMEGETTIME
 605         // make sure the timer is high precision, otherwise NT gets 18ms resolution
 606         // LordHavoc:
 607         // Windows 2000 Advanced Server (and possibly other versions)
 608         // apparently have a broken timer, because it runs at more like 10x speed
 609         // if this isn't used, heh
 610         timeBeginPeriod (1);
 611 #endif
 612
 613         Host_Init ();
 614
 615         Sys_Shared_LateInit();
 616
 617         oldtime = Sys_DoubleTime ();
 618
 619     /* main window message loop */
 620         while (1)
 621         {
 622                 if (cls.state != ca_dedicated)
 623                 {
 624                 // yield the CPU for a little while when paused, minimized, or not the focus
 625                         if ((cl.paused && !ActiveApp) || Minimized)
 626                         {
 627                                 SleepUntilInput (PAUSE_SLEEP);
 628                                 scr_skipupdate = 1;             // no point in bothering to draw
 629                         }
 630                         else if (!ActiveApp)
 631                                 SleepUntilInput (NOT_FOCUS_SLEEP);
 632                 }
 633
 634                 newtime = Sys_DoubleTime ();
 635                 Host_Frame (newtime - oldtime);
 636                 oldtime = newtime;
 637         }
 638
 639     /* return success of application */
 640     return true;
 641 }
 642