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 volatile int                                    sys_checksum;
  50
  51
  52 /*
  53 ================
  54 Sys_PageIn
  55 ================
  56 */
  57 /*
  58 void Sys_PageIn (void *ptr, int size)
  59 {
  60         byte    *x;
  61         int             m, n;
  62
  63 // touch all the memory to make sure it's there. The 16-page skip is to
  64 // keep Win 95 from thinking we're trying to page ourselves in (we are
  65 // doing that, of course, but there's no reason we shouldn't)
  66         x = (byte *)ptr;
  67
  68         for (n=0 ; n<4 ; n++)
  69         {
  70                 for (m=0 ; m<(size - 16 * 0x1000) ; m += 4)
  71                 {
  72                         sys_checksum += *(int *)&x[m];
  73                         sys_checksum += *(int *)&x[m + 16 * 0x1000];
  74                 }
  75         }
  76 }
  77 */
  78
  79
  80 /*
  81 ===============================================================================
  82
  83 QFile IO
  84
  85 ===============================================================================
  86 */
  87
  88 // LordHavoc: 256 pak files (was 10)
  89 #define MAX_HANDLES             256
  90 QFile   *sys_handles[MAX_HANDLES];
  91
  92 int             findhandle (void)
  93 {
  94         int             i;
  95
  96         for (i=1 ; i<MAX_HANDLES ; i++)
  97                 if (!sys_handles[i])
  98                         return i;
  99         Sys_Error ("out of handles");
 100         return -1;
 101 }
 102
 103 /*
 104 ================
 105 filelength
 106 ================
 107 */
 108 int filelength (QFile *f)
 109 {
 110         int             pos;
 111         int             end;
 112
 113         pos = Qtell (f);
 114         Qseek (f, 0, SEEK_END);
 115         end = Qtell (f);
 116         Qseek (f, pos, SEEK_SET);
 117
 118         return end;
 119 }
 120
 121 int Sys_FileOpenRead (char *path, int *hndl)
 122 {
 123         QFile   *f;
 124         int             i, retval;
 125
 126         i = findhandle ();
 127
 128         f = Qopen(path, "rbz");
 129
 130         if (!f)
 131         {
 132                 *hndl = -1;
 133                 retval = -1;
 134         }
 135         else
 136         {
 137                 sys_handles[i] = f;
 138                 *hndl = i;
 139                 retval = filelength(f);
 140         }
 141
 142         return retval;
 143 }
 144
 145 int Sys_FileOpenWrite (char *path)
 146 {
 147         QFile   *f;
 148         int             i;
 149
 150         i = findhandle ();
 151
 152         f = Qopen(path, "wb");
 153         if (!f)
 154         {
 155                 Con_Printf("Sys_FileOpenWrite: Error opening %s: %s", path, strerror(errno));
 156                 return 0;
 157         }
 158         sys_handles[i] = f;
 159
 160         return i;
 161 }
 162
 163 void Sys_FileClose (int handle)
 164 {
 165         Qclose (sys_handles[handle]);
 166         sys_handles[handle] = NULL;
 167 }
 168
 169 void Sys_FileSeek (int handle, int position)
 170 {
 171         Qseek (sys_handles[handle], position, SEEK_SET);
 172 }
 173
 174 int Sys_FileRead (int handle, void *dest, int count)
 175 {
 176         return Qread (sys_handles[handle], dest, count);
 177 }
 178
 179 int Sys_FileWrite (int handle, void *data, int count)
 180 {
 181         return Qwrite (sys_handles[handle], data, count);
 182 }
 183
 184 int     Sys_FileTime (char *path)
 185 {
 186         QFile   *f;
 187
 188         f = Qopen(path, "rb");
 189         if (f)
 190         {
 191                 Qclose(f);
 192                 return 1;
 193         }
 194
 195         return -1;
 196 }
 197
 198 void Sys_mkdir (char *path)
 199 {
 200         _mkdir (path);
 201 }
 202
 203
 204 /*
 205 ===============================================================================
 206
 207 SYSTEM IO
 208
 209 ===============================================================================
 210 */
 211
 212 void Sys_Error (char *error, ...)
 213 {
 214         va_list         argptr;
 215         char            text[1024], text2[1024];
 216         char            *text3 = "Press Enter to exit\n";
 217         char            *text4 = "***********************************\n";
 218         char            *text5 = "\n";
 219         DWORD           dummy;
 220         double          starttime;
 221         static int      in_sys_error0 = 0;
 222         static int      in_sys_error1 = 0;
 223         static int      in_sys_error2 = 0;
 224         static int      in_sys_error3 = 0;
 225
 226         if (!in_sys_error3)
 227                 in_sys_error3 = 1;
 228
 229         va_start (argptr, error);
 230         vsprintf (text, error, argptr);
 231         va_end (argptr);
 232
 233         if (cls.state == ca_dedicated)
 234         {
 235                 va_start (argptr, error);
 236                 vsprintf (text, error, argptr);
 237                 va_end (argptr);
 238
 239                 sprintf (text2, "ERROR: %s\n", text);
 240                 WriteFile (houtput, text5, strlen (text5), &dummy, NULL);
 241                 WriteFile (houtput, text4, strlen (text4), &dummy, NULL);
 242                 WriteFile (houtput, text2, strlen (text2), &dummy, NULL);
 243                 WriteFile (houtput, text3, strlen (text3), &dummy, NULL);
 244                 WriteFile (houtput, text4, strlen (text4), &dummy, NULL);
 245
 246
 247                 starttime = Sys_DoubleTime ();
 248                 sc_return_on_enter = true;      // so Enter will get us out of here
 249
 250                 while (!Sys_ConsoleInput () && ((Sys_DoubleTime () - starttime) < CONSOLE_ERROR_TIMEOUT))
 251                 {
 252                 }
 253         }
 254         else
 255         {
 256         // switch to windowed so the message box is visible, unless we already
 257         // tried that and failed
 258                 if (!in_sys_error0)
 259                 {
 260                         in_sys_error0 = 1;
 261                         VID_SetDefaultMode ();
 262                         MessageBox(NULL, text, "Quake Error", MB_OK | MB_SETFOREGROUND | MB_ICONSTOP);
 263                 }
 264                 else
 265                 {
 266                         MessageBox(NULL, text, "Double Quake Error", MB_OK | MB_SETFOREGROUND | MB_ICONSTOP);
 267                 }
 268         }
 269
 270         if (!in_sys_error1)
 271         {
 272                 in_sys_error1 = 1;
 273                 Host_Shutdown ();
 274         }
 275
 276 // shut down QHOST hooks if necessary
 277         if (!in_sys_error2)
 278         {
 279                 in_sys_error2 = 1;
 280                 DeinitConProc ();
 281         }
 282
 283         exit (1);
 284 }
 285
 286 void Sys_Quit (void)
 287 {
 288
 289         Host_Shutdown();
 290
 291         if (tevent)
 292                 CloseHandle (tevent);
 293
 294         if (cls.state == ca_dedicated)
 295                 FreeConsole ();
 296
 297 // shut down QHOST hooks if necessary
 298         DeinitConProc ();
 299
 300         exit (0);
 301 }
 302
 303
 304 /*
 305 ================
 306 Sys_DoubleTime
 307 ================
 308 */
 309 double Sys_DoubleTime (void)
 310 {
 311         // LordHavoc: note to people modifying this code, DWORD is specifically defined as an unsigned 32bit number, therefore the 65536.0 * 65536.0 is fine.
 312 #if WIN32_USETIMEGETTIME
 313         // timeGetTime
 314         // platform:
 315         // Windows 95/98/ME/NT/2000
 316         // features:
 317         // reasonable accuracy (millisecond)
 318         // issues:
 319         // none known
 320         static int first = true;
 321         static double oldtime = 0.0, basetime = 0.0, old = 0.0;
 322         double newtime, now;
 323
 324         now = (double) timeGetTime () + basetime;
 325
 326         if (first)
 327         {
 328                 first = false;
 329                 basetime = now;
 330                 now = 0;
 331         }
 332
 333         if (now < old)
 334         {
 335                 // wrapped
 336                 basetime += (65536.0 * 65536.0);
 337                 now += (65536.0 * 65536.0);
 338         }
 339         old = now;
 340
 341         newtime = now / 1000.0;
 342
 343         if (newtime < oldtime)
 344                 Sys_Error("Sys_DoubleTime: time running backwards??\n");
 345
 346         oldtime = newtime;
 347
 348         return newtime;
 349 #else
 350         // QueryPerformanceCounter
 351         // platform:
 352         // Windows 95/98/ME/NT/2000
 353         // features:
 354         // very accurate (CPU cycles)
 355         // known issues:
 356         // does not necessarily match realtime too well (tends to get faster and faster in win98)
 357         static int first = true;
 358         static double oldtime = 0.0, basetime = 0.0, timescale = 0.0;
 359         double newtime;
 360         LARGE_INTEGER PerformanceFreq;
 361         LARGE_INTEGER PerformanceCount;
 362
 363         if (first)
 364         {
 365                 if (!QueryPerformanceFrequency (&PerformanceFreq))
 366                         Sys_Error ("No hardware timer available");
 367
 368 #ifdef __BORLANDC__
 369                 timescale = 1.0 / ((double) PerformanceFreq.u.LowPart + (double) PerformanceFreq.u.HighPart * 65536.0 * 65536.0);
 370 #else
 371                 timescale = 1.0 / ((double) PerformanceFreq.LowPart + (double) PerformanceFreq.HighPart * 65536.0 * 65536.0);
 372 #endif
 373         }
 374
 375         QueryPerformanceCounter (&PerformanceCount);
 376
 377 #ifdef __BORLANDC__
 378         newtime = ((double) PerformanceCount.u.LowPart + (double) PerformanceCount.u.HighPart * 65536.0 * 65536.0) * timescale - basetime;
 379 #else
 380         newtime = ((double) PerformanceCount.LowPart + (double) PerformanceCount.HighPart * 65536.0 * 65536.0) * timescale - basetime;
 381 #endif
 382
 383         if (first)
 384         {
 385                 first = false;
 386                 basetime = newtime;
 387                 newtime = 0;
 388         }
 389
 390         if (newtime < oldtime)
 391                 Sys_Error("Sys_DoubleTime: time running backwards??\n");
 392
 393         oldtime = newtime;
 394
 395         return newtime;
 396 #endif
 397 }
 398
 399
 400 char *Sys_ConsoleInput (void)
 401 {
 402         static char     text[256];
 403         static int              len;
 404         INPUT_RECORD    recs[1024];
 405         int             dummy;
 406         int             ch, numread, numevents;
 407
 408         if (cls.state != ca_dedicated)
 409                 return NULL;
 410
 411
 412         for ( ;; )
 413         {
 414                 if (!GetNumberOfConsoleInputEvents (hinput, &numevents))
 415                         Sys_Error ("Error getting # of console events");
 416
 417                 if (numevents <= 0)
 418                         break;
 419
 420                 if (!ReadConsoleInput(hinput, recs, 1, &numread))
 421                         Sys_Error ("Error reading console input");
 422
 423                 if (numread != 1)
 424                         Sys_Error ("Couldn't read console input");
 425
 426                 if (recs[0].EventType == KEY_EVENT)
 427                 {
 428                         if (!recs[0].Event.KeyEvent.bKeyDown)
 429                         {
 430                                 ch = recs[0].Event.KeyEvent.uChar.AsciiChar;
 431
 432                                 switch (ch)
 433                                 {
 434                                         case '\r':
 435                                                 WriteFile(houtput, "\r\n", 2, &dummy, NULL);
 436
 437                                                 if (len)
 438                                                 {
 439                                                         text[len] = 0;
 440                                                         len = 0;
 441                                                         return text;
 442                                                 }
 443                                                 else if (sc_return_on_enter)
 444                                                 {
 445                                                 // special case to allow exiting from the error handler on Enter
 446                                                         text[0] = '\r';
 447                                                         len = 0;
 448                                                         return text;
 449                                                 }
 450
 451                                                 break;
 452
 453                                         case '\b':
 454                                                 WriteFile(houtput, "\b \b", 3, &dummy, NULL);
 455                                                 if (len)
 456                                                 {
 457                                                         len--;
 458                                                 }
 459                                                 break;
 460
 461                                         default:
 462                                                 if (ch >= ' ')
 463                                                 {
 464                                                         WriteFile(houtput, &ch, 1, &dummy, NULL);
 465                                                         text[len] = ch;
 466                                                         len = (len + 1) & 0xff;
 467                                                 }
 468
 469                                                 break;
 470
 471                                 }
 472                         }
 473                 }
 474         }
 475
 476         return NULL;
 477 }
 478
 479 void Sys_Sleep (void)
 480 {
 481         Sleep (1);
 482 }
 483
 484
 485 void Sys_SendKeyEvents (void)
 486 {
 487     MSG        msg;
 488
 489         while (PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE))
 490         {
 491         // we always update if there are any event, even if we're paused
 492                 scr_skipupdate = 0;
 493
 494                 if (!GetMessage (&msg, NULL, 0, 0))
 495                         Sys_Quit ();
 496
 497         TranslateMessage (&msg);
 498         DispatchMessage (&msg);
 499         }
 500 }
 501
 502
 503 /*
 504 ==============================================================================
 505
 506  WINDOWS CRAP
 507
 508 ==============================================================================
 509 */
 510
 511
 512 /*
 513 ==================
 514 WinMain
 515 ==================
 516 */
 517 void SleepUntilInput (int time)
 518 {
 519
 520         MsgWaitForMultipleObjects(1, &tevent, false, time, QS_ALLINPUT);
 521 }
 522
 523
 524 /*
 525 ==================
 526 WinMain
 527 ==================
 528 */
 529 HINSTANCE       global_hInstance;
 530 int                     global_nCmdShow;
 531 char            *argv[MAX_NUM_ARGVS];
 532 static char     *empty_string = "";
 533
 534 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
 535 {
 536         double                  oldtime, newtime;
 537         MEMORYSTATUS    lpBuffer;
 538         static  char    cwd[1024];
 539         int                             t;
 540
 541     /* previous instances do not exist in Win32 */
 542     if (hPrevInstance)
 543         return 0;
 544
 545         global_hInstance = hInstance;
 546         global_nCmdShow = nCmdShow;
 547
 548         lpBuffer.dwLength = sizeof(MEMORYSTATUS);
 549         GlobalMemoryStatus (&lpBuffer);
 550
 551         if (!GetCurrentDirectory (sizeof(cwd), cwd))
 552                 Sys_Error ("Couldn't determine current directory");
 553
 554         if (cwd[strlen(cwd)-1] == '/')
 555                 cwd[strlen(cwd)-1] = 0;
 556
 557         memset(&host_parms, 0, sizeof(host_parms));
 558
 559         host_parms.basedir = cwd;
 560
 561         host_parms.argc = 1;
 562         argv[0] = empty_string;
 563
 564         while (*lpCmdLine && (host_parms.argc < MAX_NUM_ARGVS))
 565         {
 566                 while (*lpCmdLine && ((*lpCmdLine <= 32) || (*lpCmdLine > 126)))
 567                         lpCmdLine++;
 568
 569                 if (*lpCmdLine)
 570                 {
 571                         argv[host_parms.argc] = lpCmdLine;
 572                         host_parms.argc++;
 573
 574                         while (*lpCmdLine && ((*lpCmdLine > 32) && (*lpCmdLine <= 126)))
 575                                 lpCmdLine++;
 576
 577                         if (*lpCmdLine)
 578                         {
 579                                 *lpCmdLine = 0;
 580                                 lpCmdLine++;
 581                         }
 582
 583                 }
 584         }
 585
 586         host_parms.argv = argv;
 587
 588         COM_InitArgv (host_parms.argc, host_parms.argv);
 589
 590         host_parms.argc = com_argc;
 591         host_parms.argv = com_argv;
 592
 593         Sys_Shared_Init();
 594
 595 // take the greater of all the available memory or half the total memory,
 596 // but at least 8 Mb and no more than 16 Mb, unless they explicitly
 597 // request otherwise
 598         /*
 599         host_parms.memsize = lpBuffer.dwAvailPhys;
 600
 601         if (host_parms.memsize < MINIMUM_WIN_MEMORY)
 602                 host_parms.memsize = MINIMUM_WIN_MEMORY;
 603
 604         if (host_parms.memsize < (lpBuffer.dwTotalPhys >> 1))
 605                 host_parms.memsize = lpBuffer.dwTotalPhys >> 1;
 606
 607         if (host_parms.memsize > MAXIMUM_WIN_MEMORY)
 608                 host_parms.memsize = MAXIMUM_WIN_MEMORY;
 609         */
 610
 611 //      Sys_PageIn (parms.membase, parms.memsize);
 612
 613         tevent = CreateEvent(NULL, false, false, NULL);
 614
 615         if (!tevent)
 616                 Sys_Error ("Couldn't create event");
 617
 618         // LordHavoc: can't check cls.state because it hasn't been initialized yet
 619         // if (cls.state == ca_dedicated)
 620         if (COM_CheckParm("-dedicated"))
 621         {
 622                 if (!AllocConsole ())
 623                         Sys_Error ("Couldn't create dedicated server console");
 624
 625                 hinput = GetStdHandle (STD_INPUT_HANDLE);
 626                 houtput = GetStdHandle (STD_OUTPUT_HANDLE);
 627
 628         // give QHOST a chance to hook into the console
 629                 if ((t = COM_CheckParm ("-HFILE")) > 0)
 630                 {
 631                         if (t < com_argc)
 632                                 hFile = (HANDLE)atoi (com_argv[t+1]);
 633                 }
 634
 635                 if ((t = COM_CheckParm ("-HPARENT")) > 0)
 636                 {
 637                         if (t < com_argc)
 638                                 heventParent = (HANDLE)atoi (com_argv[t+1]);
 639                 }
 640
 641                 if ((t = COM_CheckParm ("-HCHILD")) > 0)
 642                 {
 643                         if (t < com_argc)
 644                                 heventChild = (HANDLE)atoi (com_argv[t+1]);
 645                 }
 646
 647                 InitConProc (hFile, heventParent, heventChild);
 648         }
 649
 650 // because sound is off until we become active
 651         S_BlockSound ();
 652
 653 #if WIN32_USETIMEGETTIME
 654         // make sure the timer is high precision, otherwise NT gets 18ms resolution
 655         // LordHavoc:
 656         // Windows 2000 Advanced Server (and possibly other versions)
 657         // apparently have a broken timer, because it runs at more like 10x speed
 658         // if this isn't used, heh
 659         timeBeginPeriod (1);
 660 #endif
 661
 662         Sys_Printf ("Host_Init\n");
 663         Host_Init ();
 664
 665         oldtime = Sys_DoubleTime ();
 666
 667     /* main window message loop */
 668         while (1)
 669         {
 670                 if (cls.state != ca_dedicated)
 671                 {
 672                 // yield the CPU for a little while when paused, minimized, or not the focus
 673                         if ((cl.paused && !ActiveApp) || Minimized)
 674                         {
 675                                 SleepUntilInput (PAUSE_SLEEP);
 676                                 scr_skipupdate = 1;             // no point in bothering to draw
 677                         }
 678                         else if (!ActiveApp)
 679                                 SleepUntilInput (NOT_FOCUS_SLEEP);
 680                 }
 681
 682                 newtime = Sys_DoubleTime ();
 683                 Host_Frame (newtime - oldtime);
 684                 oldtime = newtime;
 685         }
 686
 687     /* return success of application */
 688     return true;
 689 }
 690