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 qboolean                        isDedicated;
  40 static qboolean         sc_return_on_enter = false;
  41 HANDLE                          hinput, houtput;
  42
  43 static char                     *tracking_tag = "Clams & Mooses";
  44
  45 static HANDLE   tevent;
  46 static HANDLE   hFile;
  47 static HANDLE   heventParent;
  48 static HANDLE   heventChild;
  49
  50 volatile int                                    sys_checksum;
  51
  52
  53 /*
  54 ================
  55 Sys_PageIn
  56 ================
  57 */
  58 /*
  59 void Sys_PageIn (void *ptr, int size)
  60 {
  61         byte    *x;
  62         int             m, n;
  63
  64 // touch all the memory to make sure it's there. The 16-page skip is to
  65 // keep Win 95 from thinking we're trying to page ourselves in (we are
  66 // doing that, of course, but there's no reason we shouldn't)
  67         x = (byte *)ptr;
  68
  69         for (n=0 ; n<4 ; n++)
  70         {
  71                 for (m=0 ; m<(size - 16 * 0x1000) ; m += 4)
  72                 {
  73                         sys_checksum += *(int *)&x[m];
  74                         sys_checksum += *(int *)&x[m + 16 * 0x1000];
  75                 }
  76         }
  77 }
  78 */
  79
  80
  81 /*
  82 ===============================================================================
  83
  84 QFile IO
  85
  86 ===============================================================================
  87 */
  88
  89 // LordHavoc: 256 pak files (was 10)
  90 #define MAX_HANDLES             256
  91 QFile   *sys_handles[MAX_HANDLES];
  92
  93 int             findhandle (void)
  94 {
  95         int             i;
  96
  97         for (i=1 ; i<MAX_HANDLES ; i++)
  98                 if (!sys_handles[i])
  99                         return i;
 100         Sys_Error ("out of handles");
 101         return -1;
 102 }
 103
 104 /*
 105 ================
 106 filelength
 107 ================
 108 */
 109 int filelength (QFile *f)
 110 {
 111         int             pos;
 112         int             end;
 113
 114         pos = Qtell (f);
 115         Qseek (f, 0, SEEK_END);
 116         end = Qtell (f);
 117         Qseek (f, pos, SEEK_SET);
 118
 119         return end;
 120 }
 121
 122 int Sys_FileOpenRead (char *path, int *hndl)
 123 {
 124         QFile   *f;
 125         int             i, retval;
 126
 127         i = findhandle ();
 128
 129         f = Qopen(path, "rbz");
 130
 131         if (!f)
 132         {
 133                 *hndl = -1;
 134                 retval = -1;
 135         }
 136         else
 137         {
 138                 sys_handles[i] = f;
 139                 *hndl = i;
 140                 retval = filelength(f);
 141         }
 142
 143         return retval;
 144 }
 145
 146 int Sys_FileOpenWrite (char *path)
 147 {
 148         QFile   *f;
 149         int             i;
 150
 151         i = findhandle ();
 152
 153         f = Qopen(path, "wb");
 154         if (!f)
 155         {
 156                 Con_Printf("Sys_FileOpenWrite: Error opening %s: %s", path, strerror(errno));
 157                 return 0;
 158         }
 159         sys_handles[i] = f;
 160
 161         return i;
 162 }
 163
 164 void Sys_FileClose (int handle)
 165 {
 166         Qclose (sys_handles[handle]);
 167         sys_handles[handle] = NULL;
 168 }
 169
 170 void Sys_FileSeek (int handle, int position)
 171 {
 172         Qseek (sys_handles[handle], position, SEEK_SET);
 173 }
 174
 175 int Sys_FileRead (int handle, void *dest, int count)
 176 {
 177         return Qread (sys_handles[handle], dest, count);
 178 }
 179
 180 int Sys_FileWrite (int handle, void *data, int count)
 181 {
 182         return Qwrite (sys_handles[handle], data, count);
 183 }
 184
 185 int     Sys_FileTime (char *path)
 186 {
 187         QFile   *f;
 188
 189         f = Qopen(path, "rb");
 190         if (f)
 191         {
 192                 Qclose(f);
 193                 return 1;
 194         }
 195
 196         return -1;
 197 }
 198
 199 void Sys_mkdir (char *path)
 200 {
 201         _mkdir (path);
 202 }
 203
 204
 205 /*
 206 ===============================================================================
 207
 208 SYSTEM IO
 209
 210 ===============================================================================
 211 */
 212
 213 void Sys_Error (char *error, ...)
 214 {
 215         va_list         argptr;
 216         char            text[1024], text2[1024];
 217         char            *text3 = "Press Enter to exit\n";
 218         char            *text4 = "***********************************\n";
 219         char            *text5 = "\n";
 220         DWORD           dummy;
 221         double          starttime;
 222         static int      in_sys_error0 = 0;
 223         static int      in_sys_error1 = 0;
 224         static int      in_sys_error2 = 0;
 225         static int      in_sys_error3 = 0;
 226
 227         if (!in_sys_error3)
 228                 in_sys_error3 = 1;
 229
 230         va_start (argptr, error);
 231         vsprintf (text, error, argptr);
 232         va_end (argptr);
 233
 234         if (isDedicated)
 235         {
 236                 va_start (argptr, error);
 237                 vsprintf (text, error, argptr);
 238                 va_end (argptr);
 239
 240                 sprintf (text2, "ERROR: %s\n", text);
 241                 WriteFile (houtput, text5, strlen (text5), &dummy, NULL);
 242                 WriteFile (houtput, text4, strlen (text4), &dummy, NULL);
 243                 WriteFile (houtput, text2, strlen (text2), &dummy, NULL);
 244                 WriteFile (houtput, text3, strlen (text3), &dummy, NULL);
 245                 WriteFile (houtput, text4, strlen (text4), &dummy, NULL);
 246
 247
 248                 starttime = Sys_DoubleTime ();
 249                 sc_return_on_enter = true;      // so Enter will get us out of here
 250
 251                 while (!Sys_ConsoleInput () &&
 252                                 ((Sys_DoubleTime () - starttime) < CONSOLE_ERROR_TIMEOUT))
 253                 {
 254                 }
 255         }
 256         else
 257         {
 258         // switch to windowed so the message box is visible, unless we already
 259         // tried that and failed
 260                 if (!in_sys_error0)
 261                 {
 262                         in_sys_error0 = 1;
 263                         VID_SetDefaultMode ();
 264                         MessageBox(NULL, text, "Quake Error",
 265                                            MB_OK | MB_SETFOREGROUND | MB_ICONSTOP);
 266                 }
 267                 else
 268                 {
 269                         MessageBox(NULL, text, "Double Quake Error",
 270                                            MB_OK | MB_SETFOREGROUND | MB_ICONSTOP);
 271                 }
 272         }
 273
 274         if (!in_sys_error1)
 275         {
 276                 in_sys_error1 = 1;
 277                 Host_Shutdown ();
 278         }
 279
 280 // shut down QHOST hooks if necessary
 281         if (!in_sys_error2)
 282         {
 283                 in_sys_error2 = 1;
 284                 DeinitConProc ();
 285         }
 286
 287         exit (1);
 288 }
 289
 290 void Sys_Printf (char *fmt, ...)
 291 {
 292         va_list         argptr;
 293         char            text[1024];
 294         DWORD           dummy;
 295
 296         if (isDedicated)
 297         {
 298                 va_start (argptr,fmt);
 299                 vsprintf (text, fmt, argptr);
 300                 va_end (argptr);
 301
 302                 WriteFile(houtput, text, strlen (text), &dummy, NULL);
 303         }
 304 }
 305
 306 void Sys_Quit (void)
 307 {
 308
 309         Host_Shutdown();
 310
 311         if (tevent)
 312                 CloseHandle (tevent);
 313
 314         if (isDedicated)
 315                 FreeConsole ();
 316
 317 // shut down QHOST hooks if necessary
 318         DeinitConProc ();
 319
 320         exit (0);
 321 }
 322
 323
 324 /*
 325 ================
 326 Sys_DoubleTime
 327 ================
 328 */
 329 double Sys_DoubleTime (void)
 330 {
 331         // LordHavoc: note to people modifying this code, DWORD is specifically defined as an unsigned 32bit number, therefore the 65536.0 * 65536.0 is fine.
 332 #if WIN32_USETIMEGETTIME
 333         // timeGetTime
 334         // platform:
 335         // Windows 95/98/ME/NT/2000
 336         // features:
 337         // reasonable accuracy (millisecond)
 338         // issues:
 339         // none known
 340         static int first = true;
 341         static double oldtime = 0.0, basetime = 0.0, old = 0.0;
 342         double newtime, now;
 343
 344         now = (double) timeGetTime () + basetime;
 345
 346         if (first)
 347         {
 348                 first = false;
 349                 basetime = now;
 350                 now = 0;
 351         }
 352
 353         if (now < old)
 354         {
 355                 // wrapped
 356                 basetime += (65536.0 * 65536.0);
 357                 now += (65536.0 * 65536.0);
 358         }
 359         old = now;
 360
 361         newtime = now / 1000.0;
 362
 363         if (newtime < oldtime)
 364                 Sys_Error("Sys_DoubleTime: time running backwards??\n");
 365
 366         oldtime = newtime;
 367
 368         return newtime;
 369 #else
 370         // QueryPerformanceCounter
 371         // platform:
 372         // Windows 95/98/ME/NT/2000
 373         // features:
 374         // very accurate (CPU cycles)
 375         // known issues:
 376         // does not necessarily match realtime too well (tends to get faster and faster in win98)
 377         static int first = true;
 378         static double oldtime = 0.0, basetime = 0.0, timescale = 0.0;
 379         double newtime;
 380         LARGE_INTEGER PerformanceFreq;
 381         LARGE_INTEGER PerformanceCount;
 382
 383         if (first)
 384         {
 385                 if (!QueryPerformanceFrequency (&PerformanceFreq))
 386                         Sys_Error ("No hardware timer available");
 387
 388 #ifdef __BORLANDC__
 389                 timescale = 1.0 / ((double) PerformanceFreq.u.LowPart + (double) PerformanceFreq.u.HighPart * 65536.0 * 65536.0);
 390 #else
 391                 timescale = 1.0 / ((double) PerformanceFreq.LowPart + (double) PerformanceFreq.HighPart * 65536.0 * 65536.0);
 392 #endif
 393         }
 394
 395         QueryPerformanceCounter (&PerformanceCount);
 396
 397 #ifdef __BORLANDC__
 398         newtime = ((double) PerformanceCount.u.LowPart + (double) PerformanceCount.u.HighPart * 65536.0 * 65536.0) * timescale - basetime;
 399 #else
 400         newtime = ((double) PerformanceCount.LowPart + (double) PerformanceCount.HighPart * 65536.0 * 65536.0) * timescale - basetime;
 401 #endif
 402
 403         if (first)
 404         {
 405                 first = false;
 406                 basetime = newtime;
 407                 newtime = 0;
 408         }
 409
 410         if (newtime < oldtime)
 411                 Sys_Error("Sys_DoubleTime: time running backwards??\n");
 412
 413         oldtime = newtime;
 414
 415         return newtime;
 416 #endif
 417 }
 418
 419
 420 char *Sys_ConsoleInput (void)
 421 {
 422         static char     text[256];
 423         static int              len;
 424         INPUT_RECORD    recs[1024];
 425         int             dummy;
 426         int             ch, numread, numevents;
 427
 428         if (!isDedicated)
 429                 return NULL;
 430
 431
 432         for ( ;; )
 433         {
 434                 if (!GetNumberOfConsoleInputEvents (hinput, &numevents))
 435                         Sys_Error ("Error getting # of console events");
 436
 437                 if (numevents <= 0)
 438                         break;
 439
 440                 if (!ReadConsoleInput(hinput, recs, 1, &numread))
 441                         Sys_Error ("Error reading console input");
 442
 443                 if (numread != 1)
 444                         Sys_Error ("Couldn't read console input");
 445
 446                 if (recs[0].EventType == KEY_EVENT)
 447                 {
 448                         if (!recs[0].Event.KeyEvent.bKeyDown)
 449                         {
 450                                 ch = recs[0].Event.KeyEvent.uChar.AsciiChar;
 451
 452                                 switch (ch)
 453                                 {
 454                                         case '\r':
 455                                                 WriteFile(houtput, "\r\n", 2, &dummy, NULL);
 456
 457                                                 if (len)
 458                                                 {
 459                                                         text[len] = 0;
 460                                                         len = 0;
 461                                                         return text;
 462                                                 }
 463                                                 else if (sc_return_on_enter)
 464                                                 {
 465                                                 // special case to allow exiting from the error handler on Enter
 466                                                         text[0] = '\r';
 467                                                         len = 0;
 468                                                         return text;
 469                                                 }
 470
 471                                                 break;
 472
 473                                         case '\b':
 474                                                 WriteFile(houtput, "\b \b", 3, &dummy, NULL);
 475                                                 if (len)
 476                                                 {
 477                                                         len--;
 478                                                 }
 479                                                 break;
 480
 481                                         default:
 482                                                 if (ch >= ' ')
 483                                                 {
 484                                                         WriteFile(houtput, &ch, 1, &dummy, NULL);
 485                                                         text[len] = ch;
 486                                                         len = (len + 1) & 0xff;
 487                                                 }
 488
 489                                                 break;
 490
 491                                 }
 492                         }
 493                 }
 494         }
 495
 496         return NULL;
 497 }
 498
 499 void Sys_Sleep (void)
 500 {
 501         Sleep (1);
 502 }
 503
 504
 505 void Sys_SendKeyEvents (void)
 506 {
 507     MSG        msg;
 508
 509         while (PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE))
 510         {
 511         // we always update if there are any event, even if we're paused
 512                 scr_skipupdate = 0;
 513
 514                 if (!GetMessage (&msg, NULL, 0, 0))
 515                         Sys_Quit ();
 516
 517         TranslateMessage (&msg);
 518         DispatchMessage (&msg);
 519         }
 520 }
 521
 522
 523 /*
 524 ==============================================================================
 525
 526  WINDOWS CRAP
 527
 528 ==============================================================================
 529 */
 530
 531
 532 /*
 533 ==================
 534 WinMain
 535 ==================
 536 */
 537 void SleepUntilInput (int time)
 538 {
 539
 540         MsgWaitForMultipleObjects(1, &tevent, false, time, QS_ALLINPUT);
 541 }
 542
 543
 544 /*
 545 ==================
 546 WinMain
 547 ==================
 548 */
 549 HINSTANCE       global_hInstance;
 550 int                     global_nCmdShow;
 551 char            *argv[MAX_NUM_ARGVS];
 552 static char     *empty_string = "";
 553
 554 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
 555 {
 556         double                  time, oldtime, newtime/*, timediff*/;
 557         MEMORYSTATUS    lpBuffer;
 558         static  char    cwd[1024];
 559         int                             t;
 560
 561     /* previous instances do not exist in Win32 */
 562     if (hPrevInstance)
 563         return 0;
 564
 565         global_hInstance = hInstance;
 566         global_nCmdShow = nCmdShow;
 567
 568         lpBuffer.dwLength = sizeof(MEMORYSTATUS);
 569         GlobalMemoryStatus (&lpBuffer);
 570
 571         if (!GetCurrentDirectory (sizeof(cwd), cwd))
 572                 Sys_Error ("Couldn't determine current directory");
 573
 574         if (cwd[strlen(cwd)-1] == '/')
 575                 cwd[strlen(cwd)-1] = 0;
 576
 577         memset(&host_parms, 0, sizeof(host_parms));
 578
 579         host_parms.basedir = cwd;
 580
 581         host_parms.argc = 1;
 582         argv[0] = empty_string;
 583
 584         while (*lpCmdLine && (host_parms.argc < MAX_NUM_ARGVS))
 585         {
 586                 while (*lpCmdLine && ((*lpCmdLine <= 32) || (*lpCmdLine > 126)))
 587                         lpCmdLine++;
 588
 589                 if (*lpCmdLine)
 590                 {
 591                         argv[host_parms.argc] = lpCmdLine;
 592                         host_parms.argc++;
 593
 594                         while (*lpCmdLine && ((*lpCmdLine > 32) && (*lpCmdLine <= 126)))
 595                                 lpCmdLine++;
 596
 597                         if (*lpCmdLine)
 598                         {
 599                                 *lpCmdLine = 0;
 600                                 lpCmdLine++;
 601                         }
 602
 603                 }
 604         }
 605
 606         host_parms.argv = argv;
 607
 608         COM_InitArgv (host_parms.argc, host_parms.argv);
 609
 610         host_parms.argc = com_argc;
 611         host_parms.argv = com_argv;
 612
 613         isDedicated = (COM_CheckParm ("-dedicated") != 0);
 614
 615 // take the greater of all the available memory or half the total memory,
 616 // but at least 8 Mb and no more than 16 Mb, unless they explicitly
 617 // request otherwise
 618         /*
 619         host_parms.memsize = lpBuffer.dwAvailPhys;
 620
 621         if (host_parms.memsize < MINIMUM_WIN_MEMORY)
 622                 host_parms.memsize = MINIMUM_WIN_MEMORY;
 623
 624         if (host_parms.memsize < (lpBuffer.dwTotalPhys >> 1))
 625                 host_parms.memsize = lpBuffer.dwTotalPhys >> 1;
 626
 627         if (host_parms.memsize > MAXIMUM_WIN_MEMORY)
 628                 host_parms.memsize = MAXIMUM_WIN_MEMORY;
 629         */
 630
 631 //      Sys_PageIn (parms.membase, parms.memsize);
 632
 633         tevent = CreateEvent(NULL, false, false, NULL);
 634
 635         if (!tevent)
 636                 Sys_Error ("Couldn't create event");
 637
 638         if (isDedicated)
 639         {
 640                 if (!AllocConsole ())
 641                 {
 642                         Sys_Error ("Couldn't create dedicated server console");
 643                 }
 644
 645                 hinput = GetStdHandle (STD_INPUT_HANDLE);
 646                 houtput = GetStdHandle (STD_OUTPUT_HANDLE);
 647
 648         // give QHOST a chance to hook into the console
 649                 if ((t = COM_CheckParm ("-HFILE")) > 0)
 650                 {
 651                         if (t < com_argc)
 652                                 hFile = (HANDLE)atoi (com_argv[t+1]);
 653                 }
 654
 655                 if ((t = COM_CheckParm ("-HPARENT")) > 0)
 656                 {
 657                         if (t < com_argc)
 658                                 heventParent = (HANDLE)atoi (com_argv[t+1]);
 659                 }
 660
 661                 if ((t = COM_CheckParm ("-HCHILD")) > 0)
 662                 {
 663                         if (t < com_argc)
 664                                 heventChild = (HANDLE)atoi (com_argv[t+1]);
 665                 }
 666
 667                 InitConProc (hFile, heventParent, heventChild);
 668         }
 669
 670 // because sound is off until we become active
 671         S_BlockSound ();
 672
 673 #if WIN32_USETIMEGETTIME
 674         // make sure the timer is high precision, otherwise NT gets 18ms resolution
 675         // LordHavoc:
 676         // Windows 2000 Advanced Server (and possibly other versions)
 677         // apparently have a broken timer, because it runs at more like 10x speed
 678         // if this isn't used, heh
 679         timeBeginPeriod (1);
 680 #endif
 681
 682         Sys_Printf ("Host_Init\n");
 683         Host_Init ();
 684
 685         oldtime = Sys_DoubleTime ();
 686
 687     /* main window message loop */
 688         while (1)
 689         {
 690                 if (!isDedicated)
 691                 {
 692                 // yield the CPU for a little while when paused, minimized, or not the focus
 693                         if ((cl.paused && (!ActiveApp && !DDActive)) || Minimized)
 694                         {
 695                                 SleepUntilInput (PAUSE_SLEEP);
 696                                 scr_skipupdate = 1;             // no point in bothering to draw
 697                         }
 698                         else if (!ActiveApp && !DDActive)
 699                         {
 700                                 SleepUntilInput (NOT_FOCUS_SLEEP);
 701                         }
 702
 703                         newtime = Sys_DoubleTime ();
 704                         time = newtime - oldtime;
 705                 }
 706
 707                 Host_Frame (time);
 708                 oldtime = newtime;
 709         }
 710
 711     /* return success of application */
 712     return true;
 713 }
 714