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