src/io/key.cpp

   1 /*
   2  * Copyright (C) Volition, Inc. 1999.  All rights reserved.
   3  *
   4  * All source code herein is the property of Volition, Inc. You may not sell
   5  * or otherwise commercially exploit the source or things you created based on
   6  * the source.
   7  */
   8
   9 /*
  10  * $Logfile: /Freespace2/code/Io/Key.cpp $
  11  * $Revision$
  12  * $Date$
  13  * $Author$
  14  *
  15  * <insert description of file here>
  16  *
  17  * $Log$
  18  * Revision 1.11  2003/05/18 03:57:08  taylor
  19  * do not swap German z and y keys if they are already swapped
  20  *
  21  * Revision 1.9  2003/01/30 19:55:01  relnev
  22  * add German keys (this is mostly a patch already sent in by someone else that hasn't made it into cvs yet) (Taylor Richards)
  23  *
  24  * Revision 1.8  2002/06/17 23:11:39  relnev
  25  * enable sdl key repeating.
  26  *
  27  * swap '/` keys.
  28  *
  29  * Revision 1.7  2002/06/09 04:41:21  relnev
  30  * added copyright header
  31  *
  32  * Revision 1.6  2002/06/05 04:03:32  relnev
  33  * finished cfilesystem.
  34  *
  35  * removed some old code.
  36  *
  37  * fixed mouse save off-by-one.
  38  *
  39  * sound cleanups.
  40  *
  41  * Revision 1.5  2002/05/31 03:34:02  theoddone33
  42  * Fix Keyboard
  43  * Add titlebar
  44  *
  45  * Revision 1.4  2002/05/30 23:46:29  theoddone33
  46  * some minor key changes (not necessarily fixes)
  47  *
  48  * Revision 1.3  2002/05/30 16:50:24  theoddone33
  49  * Keyboard partially fixed
  50  *
  51  * Revision 1.2  2002/05/29 23:17:50  theoddone33
  52  * Non working text code and fixed keys
  53  *
  54  * Revision 1.1.1.1  2002/05/03 03:28:09  root
  55  * Initial import.
  56  *
  57  *
  58  * 6     10/29/99 6:10p Jefff
  59  * squashed the damned y/z german issues once and for all
  60  *
  61  * 5     6/07/99 1:21p Dave
  62  * Fixed debug console scrolling problem. Thread related.
  63  *
  64  * 4     6/02/99 6:18p Dave
  65  * Fixed TNT lockup problems! Wheeeee!
  66  *
  67  * 3     11/05/98 4:18p Dave
  68  * First run nebula support. Beefed up localization a bit. Removed all
  69  * conditional compiles for foreign versions. Modified mission file
  70  * format.
  71  *
  72  * 2     10/07/98 10:53a Dave
  73  * Initial checkin.
  74  *
  75  * 1     10/07/98 10:49a Dave
  76  *
  77  * 37    6/19/98 3:50p Lawrance
  78  * change GERMAN to GR_BUILD
  79  *
  80  * 36    6/17/98 11:05a Lawrance
  81  * translate french and german keys
  82  *
  83  * 35    6/12/98 4:49p Hoffoss
  84  * Added code to remap scancodes for german and french keyboards.
  85  *
  86  * 34    5/20/98 12:10a Mike
  87  * Remove mprintfs.
  88  *
  89  * 33    5/19/98 12:19p Mike
  90  * Cheat codes!
  91  *
  92  * 32    5/19/98 12:28a Mike
  93  * Cheat stuff.
  94  *
  95  * 31    5/18/98 11:01p Mike
  96  * Adding support for cheat system.
  97  *
  98  * 30    5/11/98 12:09a Lawrance
  99  * Put in code to turn on/off NumLock key when running under 95
 100  *
 101  * 29    5/01/98 4:23p Lawrance
 102  * Remap the scancode for the UK "\" key
 103  *
 104  * 28    4/18/98 12:42p John
 105  * Added code to use DirectInput to read keyboard. Took out because it
 106  * didn't differentiate btwn Pause and Numlock and sometimes Ctrl.
 107  *
 108  * 27    4/13/98 10:16a John
 109  * Switched gettime back to timer_get_milliseconds, which is now thread
 110  * safe.
 111  *
 112  * 26    4/12/98 11:08p Lawrance
 113  * switch back to using gettime() in separate threads
 114  *
 115  * 25    4/12/98 5:31p Lawrance
 116  * use timer_get_milliseconds() instead of gettime()
 117  *
 118  * 24    3/25/98 8:08p John
 119  * Restructured software rendering into two modules; One for windowed
 120  * debug mode and one for DirectX fullscreen.
 121  *
 122  * 23    1/23/98 3:49p Mike
 123  * Fix bug in negative time-down due to latency.
 124  *
 125  * 22    1/07/98 6:41p Lawrance
 126  * Pass message latency to the keyboard lib.
 127  *
 128  * 21    11/17/97 10:42a John
 129  * On Debug+Backsp, cleared out keys so that it looks like nothing ever
 130  * happened, so they're not stuck down.
 131  *
 132  * 20    11/14/97 4:33p Mike
 133  * Change Debug key to backquote (from F11).
 134  * Balance a ton of subsystems in ships.tbl.
 135  * Change "Heavy Laser" to "Disruptor".
 136  *
 137  * 19    9/13/97 9:30a Lawrance
 138  * added ability to block certain keys from the keyboard
 139  *
 140  * 18    9/10/97 6:02p Hoffoss
 141  * Added code to check for key-pressed sexp operator in FreeSpace as part
 142  * of training mission stuff.
 143  *
 144  * 17    9/09/97 11:08a Sandeep
 145  * fixed warning level 4
 146  *
 147  * 16    7/29/97 5:30p Lawrance
 148  * move gettime() to timer module
 149  *
 150  * 15    4/22/97 10:56a John
 151  * fixed some resource leaks.
 152  *
 153  * 14    2/03/97 4:23p Allender
 154  * use F11 as debug key now
 155  *
 156  * 13    1/10/97 5:15p Mike
 157  * Moved ship-specific parameters from obj_subsystem to ship_subsys.
 158  *
 159  * Added turret code to AI system.
 160  *
 161  * $NoKeywords: $
 162  */
 163
 164 //#define USE_DIRECTINPUT
 165
 166 #ifndef PLAT_UNIX
 167 #include <windows.h>
 168 #include <windowsx.h>
 169 #endif
 170
 171 #include <ctype.h>      // for toupper
 172 #include "pstypes.h"
 173 #include "key.h"
 174 #include "fix.h"
 175 #include "timer.h"
 176 #include "osapi.h"
 177 #include "localize.h"
 178
 179 #define KEY_BUFFER_SIZE 16
 180
 181 //-------- Variable accessed by outside functions ---------
 182 ubyte                           keyd_buffer_type;               // 0=No buffer, 1=buffer ASCII, 2=buffer scans
 183 ubyte                           keyd_repeat;
 184 uint                            keyd_last_pressed;
 185 uint                            keyd_last_released;
 186 ubyte                           keyd_pressed[NUM_KEYS];
 187 int                             keyd_time_when_last_pressed;
 188
 189 typedef struct keyboard {
 190         ushort                  keybuffer[KEY_BUFFER_SIZE];
 191         uint                            time_pressed[KEY_BUFFER_SIZE];
 192         uint                            TimeKeyWentDown[NUM_KEYS];
 193         uint                            TimeKeyHeldDown[NUM_KEYS];
 194         uint                            TimeKeyDownChecked[NUM_KEYS];
 195         uint                            NumDowns[NUM_KEYS];
 196         uint                            NumUps[NUM_KEYS];
 197         int                             down_check[NUM_KEYS];  // nonzero if has been pressed yet this mission
 198         uint                            keyhead, keytail;
 199 } keyboard;
 200
 201 keyboard key_data;
 202
 203 int key_inited = 0;
 204
 205 CRITICAL_SECTION key_lock;
 206
 207 //int Backspace_debug=1;        // global flag that will enable/disable the backspace key from stopping execution
 208                                                                 // This flag was created since the backspace key is also used to correct mistakes
 209                                                                 // when typing in your pilots callsign.  This global flag is checked before execution
 210                                                                 // is stopped.
 211
 212 #ifdef PLAT_UNIX
 213 int SDLtoFS2[SDLK_LAST];
 214 #endif
 215
 216 int ascii_table[128] =
 217 { 255, 255, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=',255,255,
 218   'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', 255, 255,
 219   'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', 39, '`',
 220   255, '\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 255,'*',
 221   255, ' ', 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,255,255,
 222   255, 255, 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
 223   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
 224   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
 225   255,255,255,255,255,255,255,255 };
 226
 227 int shifted_ascii_table[128] =
 228 { 255, 255, '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+',255,255,
 229   'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', 255, 255,
 230   'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '~',
 231   255, '|', 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', 255,255,
 232   255, ' ', 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,255,255,
 233   255, 255, 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
 234   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
 235   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
 236   255,255,255,255,255,255,255,255 };
 237
 238 // used to limit the keypresses that are accepted from the keyboard
 239 #define MAX_FILTER_KEYS 64
 240 int Num_filter_keys;
 241 int Key_filter[MAX_FILTER_KEYS];
 242
 243 static int Key_numlock_was_on = 0;      // Flag to indicate whether NumLock is on at start
 244 static int Key_running_NT = 0;          // NT is the OS
 245
 246 int Cheats_enabled = 0;
 247 int Key_normal_game = 0;
 248
 249 #ifdef PLAT_UNIX
 250 void FillSDLArray ()
 251 {
 252         SDLtoFS2[SDLK_0] = KEY_0;
 253         SDLtoFS2[SDLK_1] = KEY_1;
 254         SDLtoFS2[SDLK_2] = KEY_2;
 255         SDLtoFS2[SDLK_3] = KEY_3;
 256         SDLtoFS2[SDLK_4] = KEY_4;
 257         SDLtoFS2[SDLK_5] = KEY_5;
 258         SDLtoFS2[SDLK_6] = KEY_6;
 259         SDLtoFS2[SDLK_7] = KEY_7;
 260         SDLtoFS2[SDLK_8] = KEY_8;
 261         SDLtoFS2[SDLK_9] = KEY_9;
 262
 263         SDLtoFS2[SDLK_a] = KEY_A;
 264         SDLtoFS2[SDLK_b] = KEY_B;
 265         SDLtoFS2[SDLK_c] = KEY_C;
 266         SDLtoFS2[SDLK_d] = KEY_D;
 267         SDLtoFS2[SDLK_e] = KEY_E;
 268         SDLtoFS2[SDLK_f] = KEY_F;
 269         SDLtoFS2[SDLK_g] = KEY_G;
 270         SDLtoFS2[SDLK_h] = KEY_H;
 271         SDLtoFS2[SDLK_i] = KEY_I;
 272         SDLtoFS2[SDLK_j] = KEY_J;
 273         SDLtoFS2[SDLK_k] = KEY_K;
 274         SDLtoFS2[SDLK_l] = KEY_L;
 275         SDLtoFS2[SDLK_m] = KEY_M;
 276         SDLtoFS2[SDLK_n] = KEY_N;
 277         SDLtoFS2[SDLK_o] = KEY_O;
 278         SDLtoFS2[SDLK_p] = KEY_P;
 279         SDLtoFS2[SDLK_q] = KEY_Q;
 280         SDLtoFS2[SDLK_r] = KEY_R;
 281         SDLtoFS2[SDLK_s] = KEY_S;
 282         SDLtoFS2[SDLK_t] = KEY_T;
 283         SDLtoFS2[SDLK_u] = KEY_U;
 284         SDLtoFS2[SDLK_v] = KEY_V;
 285         SDLtoFS2[SDLK_w] = KEY_W;
 286         SDLtoFS2[SDLK_x] = KEY_X;
 287         SDLtoFS2[SDLK_y] = KEY_Y;
 288         SDLtoFS2[SDLK_z] = KEY_Z;
 289
 290         if (Lcl_gr) {
 291                 SDLtoFS2[SDLK_WORLD_63] = KEY_MINUS;
 292                 SDLtoFS2[SDLK_WORLD_20] = KEY_EQUAL;
 293                 SDLtoFS2[SDLK_MINUS] = KEY_DIVIDE;
 294                 SDLtoFS2[SDLK_HASH] = KEY_SLASH;
 295                 SDLtoFS2[SDLK_COMMA] = KEY_COMMA;
 296                 SDLtoFS2[SDLK_PERIOD] = KEY_PERIOD;
 297                 SDLtoFS2[SDLK_WORLD_86] = KEY_SEMICOL;
 298
 299                 SDLtoFS2[SDLK_WORLD_92] = KEY_LBRACKET;
 300                 SDLtoFS2[SDLK_PLUS] = KEY_RBRACKET;
 301
 302                 SDLtoFS2[SDLK_CARET] = KEY_LAPOSTRO;
 303                 SDLtoFS2[SDLK_WORLD_68] = KEY_RAPOSTRO;
 304         } else {
 305                 SDLtoFS2[SDLK_MINUS] = KEY_MINUS;
 306                 SDLtoFS2[SDLK_EQUALS] = KEY_EQUAL;
 307                 SDLtoFS2[SDLK_SLASH] = KEY_DIVIDE; // No idea - DDOI
 308                 SDLtoFS2[SDLK_BACKSLASH] = KEY_SLASH;
 309                 //SDLtoFS2[SDLK_BACKSLASH] = KEY_SLASH_UK; // ?
 310                 SDLtoFS2[SDLK_COMMA] = KEY_COMMA;
 311                 SDLtoFS2[SDLK_PERIOD] = KEY_PERIOD;
 312                 SDLtoFS2[SDLK_SEMICOLON] = KEY_SEMICOL;
 313
 314                 SDLtoFS2[SDLK_LEFTBRACKET] = KEY_LBRACKET;
 315                 SDLtoFS2[SDLK_RIGHTBRACKET] = KEY_RBRACKET;
 316
 317                 SDLtoFS2[SDLK_BACKQUOTE] = KEY_LAPOSTRO;
 318                 SDLtoFS2[SDLK_QUOTE] = KEY_RAPOSTRO;
 319         }
 320
 321         SDLtoFS2[SDLK_ESCAPE] = KEY_ESC;
 322         SDLtoFS2[SDLK_RETURN] = KEY_ENTER;
 323         SDLtoFS2[SDLK_BACKSPACE] = KEY_BACKSP;
 324         SDLtoFS2[SDLK_TAB] = KEY_TAB;
 325         SDLtoFS2[SDLK_SPACE] = KEY_SPACEBAR;
 326
 327         SDLtoFS2[SDLK_NUMLOCK] = KEY_NUMLOCK;
 328         SDLtoFS2[SDLK_SCROLLOCK] = KEY_SCROLLOCK;
 329         SDLtoFS2[SDLK_CAPSLOCK] = KEY_CAPSLOCK;
 330
 331         SDLtoFS2[SDLK_LSHIFT] = KEY_LSHIFT;
 332         SDLtoFS2[SDLK_RSHIFT] = KEY_RSHIFT;
 333
 334         SDLtoFS2[SDLK_LALT] = KEY_LALT;
 335         SDLtoFS2[SDLK_RALT] = KEY_RALT;
 336
 337         SDLtoFS2[SDLK_LCTRL] = KEY_LCTRL;
 338         SDLtoFS2[SDLK_RCTRL] = KEY_RCTRL;
 339
 340         SDLtoFS2[SDLK_F1] = KEY_F1;
 341         SDLtoFS2[SDLK_F2] = KEY_F2;
 342         SDLtoFS2[SDLK_F3] = KEY_F3;
 343         SDLtoFS2[SDLK_F4] = KEY_F4;
 344         SDLtoFS2[SDLK_F5] = KEY_F5;
 345         SDLtoFS2[SDLK_F6] = KEY_F6;
 346         SDLtoFS2[SDLK_F7] = KEY_F7;
 347         SDLtoFS2[SDLK_F8] = KEY_F8;
 348         SDLtoFS2[SDLK_F9] = KEY_F9;
 349         SDLtoFS2[SDLK_F10] = KEY_F10;
 350         SDLtoFS2[SDLK_F11] = KEY_F11;
 351         SDLtoFS2[SDLK_F12] = KEY_F12;
 352
 353         SDLtoFS2[SDLK_KP0] = KEY_PAD0;
 354         SDLtoFS2[SDLK_KP1] = KEY_PAD1;
 355         SDLtoFS2[SDLK_KP2] = KEY_PAD2;
 356         SDLtoFS2[SDLK_KP3] = KEY_PAD3;
 357         SDLtoFS2[SDLK_KP4] = KEY_PAD4;
 358         SDLtoFS2[SDLK_KP5] = KEY_PAD5;
 359         SDLtoFS2[SDLK_KP6] = KEY_PAD6;
 360         SDLtoFS2[SDLK_KP7] = KEY_PAD7;
 361         SDLtoFS2[SDLK_KP8] = KEY_PAD8;
 362         SDLtoFS2[SDLK_KP9] = KEY_PAD9;
 363         SDLtoFS2[SDLK_KP_MINUS] = KEY_PADMINUS;
 364         SDLtoFS2[SDLK_KP_PLUS] = KEY_PADPLUS;
 365         SDLtoFS2[SDLK_KP_PERIOD] = KEY_PADPERIOD;
 366         SDLtoFS2[SDLK_KP_DIVIDE] = KEY_PADDIVIDE;
 367         SDLtoFS2[SDLK_KP_MULTIPLY] = KEY_PADMULTIPLY;
 368         SDLtoFS2[SDLK_KP_ENTER] = KEY_PADENTER;
 369
 370         SDLtoFS2[SDLK_INSERT] = KEY_INSERT;
 371         SDLtoFS2[SDLK_HOME] = KEY_HOME;
 372         SDLtoFS2[SDLK_PAGEUP] = KEY_PAGEUP;
 373         SDLtoFS2[SDLK_DELETE] = KEY_DELETE;
 374         SDLtoFS2[SDLK_END] = KEY_END;
 375         SDLtoFS2[SDLK_PAGEDOWN] = KEY_PAGEDOWN;
 376         SDLtoFS2[SDLK_UP] = KEY_UP;
 377         SDLtoFS2[SDLK_DOWN] = KEY_DOWN;
 378         SDLtoFS2[SDLK_LEFT] = KEY_LEFT;
 379         SDLtoFS2[SDLK_RIGHT] = KEY_RIGHT;
 380
 381         SDLtoFS2[SDLK_PRINT] = KEY_PRINT_SCRN;
 382         SDLtoFS2[SDLK_PAUSE] = KEY_PAUSE;
 383         SDLtoFS2[SDLK_BREAK] = KEY_BREAK;
 384 }
 385 #endif
 386
 387 int key_numlock_is_on()
 388 {
 389 #ifdef PLAT_UNIX
 390         int keys[SDLK_LAST];
 391         SDL_GetKeyState(keys);
 392         if ( keys[SDLK_NUMLOCK] ) {
 393                 return 1;
 394         }
 395 #else
 396         unsigned char keys[256];
 397         GetKeyboardState(keys);
 398         if ( keys[VK_NUMLOCK]  ) {
 399                 return 1;
 400         }
 401 #endif
 402         return 0;
 403 }
 404
 405 void key_turn_off_numlock()
 406 {
 407 #ifdef PLAT_UNIX
 408 //      STUB_FUNCTION; /* sdl doesn't support this */
 409 #else
 410         unsigned char keys[256];
 411         GetKeyboardState(keys);
 412         keys[VK_NUMLOCK] = 0;
 413         SetKeyboardState(keys);
 414 #endif
 415 }
 416
 417 void key_turn_on_numlock()
 418 {
 419 #ifdef PLAT_UNIX
 420 //      STUB_FUNCTION; /* sdl doesn't support this */
 421 #else
 422         unsigned char keys[256];
 423         GetKeyboardState(keys);
 424         keys[VK_NUMLOCK] = 1;
 425         SetKeyboardState(keys);
 426 #endif
 427 }
 428
 429 //      Convert a BIOS scancode to ASCII.
 430 //      If scancode >= 127, returns 255, meaning there is no corresponding ASCII code.
 431 //      Uses ascii_table and shifted_ascii_table to translate scancode to ASCII.
 432 int key_to_ascii(int keycode )
 433 {
 434         int shifted;
 435
 436         if ( !key_inited ) return 255;
 437
 438         shifted = keycode & KEY_SHIFTED;
 439         keycode &= KEY_MASK;
 440
 441         if ( keycode>=127 )
 442                 return 255;
 443
 444         if (shifted)
 445                 return shifted_ascii_table[keycode];
 446         else
 447                 return ascii_table[keycode];
 448 }
 449
 450 //      Flush the keyboard buffer.
 451 //      Clear the keyboard array (keyd_pressed).
 452 void key_flush()
 453 {
 454         int i;
 455         uint CurTime;
 456
 457         if ( !key_inited ) return;
 458
 459         ENTER_CRITICAL_SECTION(&key_lock);
 460
 461         key_data.keyhead = key_data.keytail = 0;
 462
 463         //Clear the keyboard buffer
 464         for (i=0; i<KEY_BUFFER_SIZE; i++ )      {
 465                 key_data.keybuffer[i] = 0;
 466                 key_data.time_pressed[i] = 0;
 467         }
 468
 469         //Clear the keyboard array
 470
 471         CurTime = timer_get_milliseconds();
 472
 473
 474         for (i=0; i<NUM_KEYS; i++ )     {
 475                 keyd_pressed[i] = 0;
 476                 key_data.TimeKeyDownChecked[i] = CurTime;
 477                 key_data.TimeKeyWentDown[i] = CurTime;
 478                 key_data.TimeKeyHeldDown[i] = 0;
 479                 key_data.NumDowns[i]=0;
 480                 key_data.NumUps[i]=0;
 481         }
 482
 483         LEAVE_CRITICAL_SECTION(&key_lock);
 484 }
 485
 486 //      A nifty function which performs the function:
 487 //              n = (n+1) % KEY_BUFFER_SIZE
 488 //      (assuming positive values of n).
 489 int add_one( int n )
 490 {
 491         n++;
 492         if ( n >= KEY_BUFFER_SIZE ) n=0;
 493         return n;
 494 }
 495
 496 // Returns 1 if character waiting... 0 otherwise
 497 int key_checkch()
 498 {
 499         int is_one_waiting = 0;
 500
 501         if ( !key_inited ) return 0;
 502
 503         ENTER_CRITICAL_SECTION(&key_lock);
 504
 505         if (key_data.keytail != key_data.keyhead){
 506                 is_one_waiting = 1;
 507         }
 508
 509         LEAVE_CRITICAL_SECTION(&key_lock);
 510
 511         return is_one_waiting;
 512 }
 513
 514 //      Return key scancode if a key has been pressed,
 515 //      else return 0.
 516 //      Reads keys out of the key buffer and updates keyhead.
 517 int key_inkey()
 518 {
 519         int key = 0;
 520
 521         if ( !key_inited ) return 0;
 522
 523         ENTER_CRITICAL_SECTION(&key_lock);
 524
 525         if (key_data.keytail!=key_data.keyhead) {
 526                 key = key_data.keybuffer[key_data.keyhead];
 527                 key_data.keyhead = add_one(key_data.keyhead);
 528         }
 529
 530         LEAVE_CRITICAL_SECTION(&key_lock);
 531
 532         return key;
 533 }
 534
 535 //      Unget a key.  Puts it back in the input queue.
 536 void key_outkey(int key)
 537 {
 538         int     bufp;
 539
 540         if ( !key_inited ) return;
 541
 542         ENTER_CRITICAL_SECTION(&key_lock);
 543
 544         bufp = key_data.keytail+1;
 545
 546         if (bufp >= KEY_BUFFER_SIZE){
 547                 bufp = 0;
 548         }
 549
 550         key_data.keybuffer[key_data.keytail] = (unsigned short)key;
 551
 552         key_data.keytail = bufp;
 553
 554         LEAVE_CRITICAL_SECTION(&key_lock);
 555 }
 556
 557
 558
 559 //      Return amount of time last key was held down.
 560 //      This is currently (July 17, 1996) bogus because our timing is
 561 //      not accurate.
 562 int key_inkey_time(uint * time)
 563 {
 564         int key = 0;
 565
 566         if ( !key_inited ) {
 567                 *time = 0;
 568                 return 0;
 569         }
 570
 571         ENTER_CRITICAL_SECTION(&key_lock);
 572
 573         if (key_data.keytail!=key_data.keyhead) {
 574                 key = key_data.keybuffer[key_data.keyhead];
 575                 *time = key_data.time_pressed[key_data.keyhead];
 576                 key_data.keyhead = add_one(key_data.keyhead);
 577         }
 578
 579         LEAVE_CRITICAL_SECTION(&key_lock);
 580
 581         return key;
 582 }
 583
 584
 585 //      Returns scancode of last key pressed, if any (returns 0 if no key pressed)
 586 //      but does not update keyhead pointer.
 587 int key_peekkey()
 588 {
 589         int key = 0;
 590
 591         if ( !key_inited ) return 0;
 592
 593         ENTER_CRITICAL_SECTION(&key_lock);
 594
 595         if (key_data.keytail!=key_data.keyhead) {
 596                 key = key_data.keybuffer[key_data.keyhead];
 597         }
 598         LEAVE_CRITICAL_SECTION(&key_lock);
 599
 600         return key;
 601 }
 602
 603 // If not installed, uses BIOS and returns getch();
 604 //      Else returns pending key (or waits for one if none waiting).
 605 int key_getch()
 606 {
 607         int dummy=0;
 608         int in;
 609
 610         if ( !key_inited ) return 0;
 611
 612         while (!key_checkch()){
 613                 os_poll();
 614
 615                 dummy++;
 616         }
 617         in = key_inkey();
 618
 619         return in;
 620 }
 621
 622 //      Set global shift_status with modifier results (shift, ctrl, alt).
 623 uint key_get_shift_status()
 624 {
 625         unsigned int shift_status = 0;
 626
 627         if ( !key_inited ) return 0;
 628
 629         ENTER_CRITICAL_SECTION(&key_lock);
 630
 631         if ( keyd_pressed[KEY_LSHIFT] || keyd_pressed[KEY_RSHIFT] )
 632                 shift_status |= KEY_SHIFTED;
 633
 634         if ( keyd_pressed[KEY_LALT] || keyd_pressed[KEY_RALT] )
 635                 shift_status |= KEY_ALTED;
 636
 637         if ( keyd_pressed[KEY_LCTRL] || keyd_pressed[KEY_RCTRL] )
 638                 shift_status |= KEY_CTRLED;
 639
 640 #ifndef NDEBUG
 641         if (keyd_pressed[KEY_DEBUG_KEY])
 642                 shift_status |= KEY_DEBUGGED;
 643 #else
 644         if (keyd_pressed[KEY_DEBUG_KEY]) {
 645                 mprintf(("Cheats_enabled = %i, Key_normal_game = %i\n", Cheats_enabled, Key_normal_game));
 646                 if ((Cheats_enabled) && Key_normal_game) {
 647                         mprintf(("Debug key\n"));
 648                         shift_status |= KEY_DEBUGGED1;
 649                 }
 650         }
 651 #endif
 652         LEAVE_CRITICAL_SECTION(&key_lock);
 653
 654         return shift_status;
 655 }
 656
 657 //      Returns amount of time key (specified by "code") has been down since last call.
 658 //      Returns float, unlike key_down_time() which returns a fix.
 659 float key_down_timef(uint scancode)
 660 {
 661         uint time_down, time;
 662         uint delta_time;
 663
 664         if ( !key_inited ) return 0.0f;
 665
 666         if ((scancode<0)|| (scancode>=NUM_KEYS)) return 0.0f;
 667
 668         ENTER_CRITICAL_SECTION(&key_lock);
 669
 670         time = timer_get_milliseconds();
 671         delta_time = time - key_data.TimeKeyDownChecked[scancode];
 672         key_data.TimeKeyDownChecked[scancode] = time;
 673
 674         if ( delta_time <= 1 ) {
 675                 key_data.TimeKeyWentDown[scancode] = time;
 676                 if (keyd_pressed[scancode])     {
 677                         LEAVE_CRITICAL_SECTION(&key_lock);
 678                         return 1.0f;
 679                 } else  {
 680                         LEAVE_CRITICAL_SECTION(&key_lock);
 681                         return 0.0f;
 682                 }
 683         }
 684
 685         if ( !keyd_pressed[scancode] )  {
 686                 time_down = key_data.TimeKeyHeldDown[scancode];
 687                 key_data.TimeKeyHeldDown[scancode] = 0;
 688         } else  {
 689                 time_down =  time - key_data.TimeKeyWentDown[scancode];
 690                 key_data.TimeKeyWentDown[scancode] = time;
 691         }
 692
 693         LEAVE_CRITICAL_SECTION(&key_lock);
 694
 695         return i2fl(time_down) / i2fl(delta_time);
 696 }
 697
 698 /*
 699 //      Returns amount of time key (specified by "code") has been down since last call.
 700 //      Returns float, unlike key_down_time() which returns a fix.
 701 fix key_down_time( uint code )
 702 {
 703         uint time_down, time;
 704         uint delta_time;
 705
 706         if ( !key_inited ) return 0.0f;
 707
 708         if ((scancode<0)|| (scancode>=NUM_KEYS)) return 0.0f;
 709
 710         EnterCriticalSection( &key_lock );
 711
 712         time = timer_get_milliseconds();
 713         delta_time = time - TimeKeyDownChecked[scancode];
 714         TimeKeyDownChecked[scancode] = time;
 715
 716         if ( delta_time <= 1 ) {
 717                 LeaveCriticalSection( &key_lock );
 718                 if (keyd_pressed[scancode])
 719                         return F1_0;
 720                 else
 721                         return 0;
 722         }
 723
 724         if ( !keyd_pressed[scancode] )  {
 725                 time_down = key_data.TimeKeyHeldDown[scancode];
 726                 key_data.TimeKeyHeldDown[scancode] = 0;
 727         } else  {
 728                 time_down =  time - key_data.TimeKeyWentDown[scancode];
 729                 key_data.TimeKeyWentDown[scancode] = time;
 730         }
 731
 732         LeaveCriticalSection( &key_lock );
 733
 734         return fixmuldiv( time_down, F1_0, delta_time );
 735 }
 736 */
 737
 738
 739 // Returns number of times key has went from up to down since last call.
 740 int key_down_count(int scancode)
 741 {
 742         int n;
 743
 744         if ( !key_inited ) return 0;
 745
 746         if ((scancode<0)|| (scancode>=NUM_KEYS)) return 0;
 747
 748         ENTER_CRITICAL_SECTION(&key_lock);
 749
 750         n = key_data.NumDowns[scancode];
 751         key_data.NumDowns[scancode] = 0;
 752
 753         LEAVE_CRITICAL_SECTION(&key_lock);
 754
 755         return n;
 756 }
 757
 758
 759 // Returns number of times key has went from down to up since last call.
 760 int key_up_count(int scancode)
 761 {
 762         int n;
 763
 764         if ( !key_inited ) return 0;
 765         if ((scancode<0)|| (scancode>=NUM_KEYS)) return 0;
 766
 767         ENTER_CRITICAL_SECTION(&key_lock);
 768
 769         n = key_data.NumUps[scancode];
 770         key_data.NumUps[scancode] = 0;
 771
 772         LEAVE_CRITICAL_SECTION(&key_lock);
 773
 774         return n;
 775 }
 776
 777 int key_check(int key)
 778 {
 779         return key_data.down_check[key];
 780 }
 781
 782 //      Add a key up or down code to the key buffer.  state=1 -> down, state=0 -> up
 783 // latency => time difference in ms between when key was actually pressed and now
 784 //void key_mark( uint code, int state )
 785 void key_mark( uint code, int state, uint latency )
 786 {
 787         uint scancode, breakbit, temp, event_time;
 788         ushort keycode;
 789
 790         if ( !key_inited ) return;
 791
 792         ENTER_CRITICAL_SECTION(&key_lock);
 793
 794         // If running in the UK, need to translate their wacky slash scancode to ours
 795         if ( code == KEY_SLASH_UK ) {
 796                 code = KEY_SLASH;
 797         }
 798
 799         if(Lcl_fr){
 800                 switch (code) {
 801                 case KEY_A:
 802                         code = KEY_Q;
 803                         break;
 804
 805                 case KEY_M:
 806                         code = KEY_COMMA;
 807                         break;
 808
 809                 case KEY_Q:
 810                         code = KEY_A;
 811                         break;
 812
 813                 case KEY_W:
 814                         code = KEY_Z;
 815                         break;
 816
 817                 case KEY_Z:
 818                         code = KEY_W;
 819                         break;
 820
 821                 case KEY_SEMICOL:
 822                         code = KEY_M;
 823                         break;
 824
 825                 case KEY_COMMA:
 826                         code = KEY_SEMICOL;
 827                         break;
 828                 }
 829 #if !defined(PLAT_UNIX) || defined(__MACOSX__)
 830         } else if(Lcl_gr){
 831                 switch (code) {
 832                 case KEY_Y:
 833                         code = KEY_Z;
 834                         break;
 835
 836                 case KEY_Z:
 837                         code = KEY_Y;
 838                         break;
 839                 }
 840 #endif
 841         }
 842
 843         if ( (code == 0xc5) && !Key_running_NT ) {
 844                 key_turn_off_numlock();
 845         }
 846
 847         Assert( code < NUM_KEYS );
 848
 849         event_time = timer_get_milliseconds() - latency;
 850         // event_time = timeGetTime() - latency;
 851
 852         // Read in scancode
 853         scancode = code & (NUM_KEYS-1);
 854         breakbit = !state;
 855
 856         if (breakbit)   {
 857                 // Key going up
 858                 keyd_last_released = scancode;
 859                 keyd_pressed[scancode] = 0;
 860                 key_data.NumUps[scancode]++;
 861
 862                 //      What is the point of this code?  "temp" is never used!
 863                 temp = 0;
 864                 temp |= keyd_pressed[KEY_LSHIFT] || keyd_pressed[KEY_RSHIFT];
 865                 temp |= keyd_pressed[KEY_LALT] || keyd_pressed[KEY_RALT];
 866                 temp |= keyd_pressed[KEY_LCTRL] || keyd_pressed[KEY_RCTRL];
 867 //#ifndef NDEBUG
 868                 temp |= keyd_pressed[KEY_DEBUG_KEY];
 869 //#endif
 870                 if (event_time < key_data.TimeKeyWentDown[scancode])
 871                         key_data.TimeKeyHeldDown[scancode] = 0;
 872                 else
 873                         key_data.TimeKeyHeldDown[scancode] += event_time - key_data.TimeKeyWentDown[scancode];
 874         } else {
 875                 // Key going down
 876                 keyd_last_pressed = scancode;
 877                 keyd_time_when_last_pressed = event_time;
 878                 if (!keyd_pressed[scancode])    {
 879                         // First time down
 880                         key_data.TimeKeyWentDown[scancode] = event_time;
 881                         keyd_pressed[scancode] = 1;
 882                         key_data.NumDowns[scancode]++;
 883                         key_data.down_check[scancode]++;
 884
 885 //                      mprintf(( "Scancode = %x\n", scancode ));
 886
 887 //                      if ( scancode == KEY_BREAK )
 888 //                              Int3();
 889
 890
 891                 } else if (!keyd_repeat) {
 892                         // Don't buffer repeating key if repeat mode is off
 893                         scancode = 0xAA;
 894                 }
 895
 896                 if ( scancode!=0xAA ) {
 897                         keycode = (unsigned short)scancode;
 898
 899                         if ( keyd_pressed[KEY_LSHIFT] || keyd_pressed[KEY_RSHIFT] )
 900                                 keycode |= KEY_SHIFTED;
 901
 902                         if ( keyd_pressed[KEY_LALT] || keyd_pressed[KEY_RALT] )
 903                                 keycode |= KEY_ALTED;
 904
 905                         if ( keyd_pressed[KEY_LCTRL] || keyd_pressed[KEY_RCTRL] )
 906                                 keycode |= KEY_CTRLED;
 907
 908 #ifndef NDEBUG
 909                         if ( keyd_pressed[KEY_DEBUG_KEY] )
 910                                 keycode |= KEY_DEBUGGED;
 911 //                      if ( keycode == (KEY_BACKSP + KEY_DEBUGGED) )   {
 912 //                              keycode = 0;
 913 //                              keyd_pressed[KEY_DEBUG_KEY] = 0;
 914 //                              keyd_pressed[KEY_BACKSP] = 0;
 915 //                              Int3();
 916 //                      }
 917 #else
 918                         if ( keyd_pressed[KEY_DEBUG_KEY] ) {
 919                                 mprintf(("Cheats_enabled = %i, Key_normal_game = %i\n", Cheats_enabled, Key_normal_game));
 920                                 if (Cheats_enabled && Key_normal_game) {
 921                                         keycode |= KEY_DEBUGGED1;
 922                                 }
 923                         }
 924
 925 #endif
 926
 927                         if ( keycode )  {
 928                                 temp = key_data.keytail+1;
 929                                 if ( temp >= KEY_BUFFER_SIZE ) temp=0;
 930
 931                                 if (temp!=key_data.keyhead)     {
 932                                         int i, accept_key = 1;
 933                                         // Num_filter_keys will only be non-zero when a key filter has
 934                                         // been explicity set up via key_set_filter()
 935                                         for ( i = 0; i < Num_filter_keys; i++ ) {
 936                                                 accept_key = 0;
 937                                                 if ( Key_filter[i] == keycode ) {
 938                                                         accept_key = 1;
 939                                                         break;
 940                                                 }
 941                                         }
 942
 943                                         if ( accept_key ) {
 944                                                 key_data.keybuffer[key_data.keytail] = keycode;
 945                                                 key_data.time_pressed[key_data.keytail] = keyd_time_when_last_pressed;
 946                                                 key_data.keytail = temp;
 947                                         }
 948                                 }
 949                         }
 950                 }
 951         }
 952
 953         LEAVE_CRITICAL_SECTION(&key_lock);
 954 }
 955
 956 #ifdef USE_DIRECTINPUT
 957 void di_cleanup();
 958 int di_init();
 959 #endif
 960
 961
 962 void key_close()
 963 {
 964         if ( !key_inited ) return;
 965
 966         #ifdef USE_DIRECTINPUT
 967                 di_cleanup();
 968         #endif
 969
 970         if ( Key_numlock_was_on ) {
 971                 key_turn_on_numlock();
 972                 Key_numlock_was_on = 0;
 973         }
 974
 975         key_inited = 0;
 976 #ifdef PLAT_UNIX
 977 //      STUB_FUNCTION; /* don't need this? */
 978 #else
 979         DeleteCriticalSection( &key_lock );
 980 #endif
 981 }
 982
 983 void key_init()
 984 {
 985         // Initialize queue
 986         if ( key_inited ) return;
 987         key_inited = 1;
 988
 989 #ifdef PLAT_UNIX
 990         FillSDLArray ();
 991 //      STUB_FUNCTION; /* don't need this */
 992 #else
 993         InitializeCriticalSection( &key_lock );
 994
 995         ENTER_CRITICAL_SECTION(&key_lock);
 996 #endif
 997
 998         keyd_time_when_last_pressed = timer_get_milliseconds();
 999         keyd_buffer_type = 1;
1000         keyd_repeat = 1;
1001
1002         // Clear the keyboard array
1003         key_flush();
1004
1005         // Clear key filter
1006         key_clear_filter();
1007
1008 #ifdef PLAT_UNIX
1009 //      STUB_FUNCTION; /* don't need this */
1010 #else
1011         LEAVE_CRITICAL_SECTION(&key_lock);
1012
1013         #ifdef USE_DIRECTINPUT
1014                 di_init();
1015         #endif
1016
1017         OSVERSIONINFO ver;
1018         ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1019         GetVersionEx(&ver);
1020         if ( ver.dwPlatformId == VER_PLATFORM_WIN32_NT ) {
1021                 Key_running_NT = 1;
1022         } else {
1023                 Key_running_NT = 0;
1024                 if ( key_numlock_is_on() ) {
1025                         Key_numlock_was_on = 1;
1026                         key_turn_off_numlock();
1027                 }
1028         }
1029 #endif
1030
1031         atexit(key_close);
1032 }
1033
1034 void key_level_init()
1035 {
1036         int i;
1037
1038         for (i=0; i<NUM_KEYS; i++)
1039                 key_data.down_check[i] = 0;
1040 }
1041
1042 void key_lost_focus()
1043 {
1044         if ( !key_inited ) return;
1045
1046         key_flush();
1047 }
1048
1049 void key_got_focus()
1050 {
1051         if ( !key_inited ) return;
1052
1053         key_flush();
1054 }
1055
1056 // Restricts the keys that are accepted from the keyboard
1057 //
1058 //      filter_array    =>              array of keys to act as a filter
1059 //      num                             =>              number of keys in filter_array
1060 //
1061 void key_set_filter(int *filter_array, int num)
1062 {
1063         int i;
1064
1065         if ( num >= MAX_FILTER_KEYS ) {
1066                 Int3();
1067                 num = MAX_FILTER_KEYS;
1068         }
1069
1070         Num_filter_keys = num;
1071
1072         for ( i = 0; i < num; i++ ) {
1073                 Key_filter[i] = filter_array[i];
1074         }
1075 }
1076
1077 // Clear the key filter, so all keypresses are accepted from keyboard
1078 //
1079 void key_clear_filter()
1080 {
1081         int i;
1082
1083         Num_filter_keys = 0;
1084         for ( i = 0; i < MAX_FILTER_KEYS; i++ ) {
1085                 Key_filter[i] = -1;
1086         }
1087 }
1088
1089
1090 #ifdef USE_DIRECTINPUT
1091
1092 // JAS - April 18, 1998
1093 // Not using because DI has the following problems:  (Everything else works ok)
1094 // Under NT, Pause and Numlock report as identical keys.
1095 // Under 95, Pause is the same as pressing Ctrl then Numlock.  So the game fires each
1096 // time you hit it.
1097 //
1098
1099 //============================================================================
1100 // Direct Input code
1101 // For the keyboard, this basically replaces our old functionallity of:
1102 // WM_KEYDOWN:
1103 //    key_mark(...);
1104 // WM_KEYUP:
1105 //    key_mark(...);
1106 //============================================================================
1107
1108
1109 #include "vdinput.h"
1110
1111 #define MAX_BUFFERED_KEYBOARD_EVENTS 10
1112
1113 static LPDIRECTINPUT                    Di_object = NULL;
1114 static LPDIRECTINPUTDEVICE      Di_keyboard = NULL;
1115 static HANDLE                                   Di_thread = NULL;
1116 static DWORD                                    Di_thread_id = NULL;
1117 static HANDLE                                   Di_event = NULL;
1118
1119 DWORD di_process(DWORD lparam)
1120 {
1121         while (1) {
1122                 if ( WaitForSingleObject( Di_event, INFINITE )==WAIT_OBJECT_0 ) {
1123
1124                         //mprintf(( "Got event!\n" ));
1125
1126                         HRESULT hr;
1127
1128                         DIDEVICEOBJECTDATA rgdod[10];
1129                         DWORD dwItems = MAX_BUFFERED_KEYBOARD_EVENTS;
1130
1131 again:;
1132                         hr = Di_keyboard->GetDeviceData( sizeof(DIDEVICEOBJECTDATA), rgdod,  &dwItems, 0);
1133
1134                         if (hr == DIERR_INPUTLOST) {
1135                                 /*
1136                                 *  DirectInput is telling us that the input stream has
1137                                 *  been interrupted.  We aren't tracking any state
1138                                 *  between polls, so we don't have any special reset
1139                                 *  that needs to be done.  We just re-acquire and
1140                                 *  try again.
1141                                 */
1142                                 Sleep(1000);            // Pause a second...
1143                                 hr = Di_keyboard->Acquire();
1144                                 if (SUCCEEDED(hr)) {
1145                                         goto again;
1146                                 }
1147                         }
1148
1149                         if (SUCCEEDED(hr)) {
1150                                  // dwItems = number of elements read (could be zero)
1151                                  if (hr == DI_BUFFEROVERFLOW) {
1152                                         // Buffer had overflowed.
1153                                         mprintf(( "Buffer overflowed!\n" ));
1154                                  }
1155                                         int i;
1156
1157                                         //mprintf(( "Got %d events\n", dwItems ));
1158
1159                                         for (i=0; i<(int)dwItems; i++ ) {
1160                                                 int key = rgdod[i].dwOfs;
1161                                                 int state = rgdod[i].dwData;
1162                                                 int stamp = rgdod[i].dwTimeStamp;
1163
1164                                                 int latency;
1165                                                 latency = timeGetTime() - stamp;
1166                                                 if ( latency < 0 )
1167                                                         latency=0;
1168
1169 //                                              if ( key == KEY_PRINT_SCRN )    {
1170 //                                                      key_mark( key, 1, latency );
1171 //                                              }
1172 //                                              key_mark( key, (state&0x80?1:0), latency );
1173                                                 mprintf(( "Key=%x, State=%x, Time=%d, Latency=%d\n", key, state, stamp, latency ));
1174                                         }
1175
1176                         }
1177                 }
1178
1179         }
1180
1181         return 0;
1182 }
1183
1184
1185 int di_init()
1186 {
1187     HRESULT hr;
1188
1189          return 0;
1190
1191
1192     /*
1193      *  Register with the DirectInput subsystem and get a pointer
1194      *  to a IDirectInput interface we can use.
1195      *
1196      *  Parameters:
1197      *
1198      *      g_hinst
1199      *
1200      *          Instance handle to our application or DLL.
1201      *
1202      *      DIRECTINPUT_VERSION
1203      *
1204      *          The version of DirectInput we were designed for.
1205      *          We take the value from the <dinput.h> header file.
1206      *
1207      *      &g_pdi
1208      *
1209      *          Receives pointer to the IDirectInput interface
1210      *          that was created.
1211      *
1212      *      NULL
1213      *
1214      *          We do not use OLE aggregation, so this parameter
1215      *          must be NULL.
1216      *
1217      */
1218     hr = DirectInputCreate(GetModuleHandle(NULL), 0x300, &Di_object, NULL);
1219
1220     if (FAILED(hr)) {
1221         mprintf(( "DirectInputCreate failed!\n" ));
1222         return FALSE;
1223     }
1224
1225     /*
1226      *  Obtain an interface to the system keyboard device.
1227      *
1228      *  Parameters:
1229      *
1230      *      GUID_SysKeyboard
1231      *
1232      *          The instance GUID for the device we wish to access.
1233      *          GUID_SysKeyboard is a predefined instance GUID that
1234      *          always refers to the system keyboard device.
1235      *
1236      *      &g_pKeyboard
1237      *
1238      *          Receives pointer to the IDirectInputDevice interface
1239      *          that was created.
1240      *
1241      *      NULL
1242      *
1243      *          We do not use OLE aggregation, so this parameter
1244      *          must be NULL.
1245      *
1246      */
1247     hr = Di_object->CreateDevice(GUID_SysKeyboard, &Di_keyboard, NULL);
1248
1249     if (FAILED(hr)) {
1250         mprintf(( "CreateDevice failed!\n" ));
1251         return FALSE;
1252     }
1253
1254     /*
1255      *  Set the data format to "keyboard format".
1256      *
1257      *  A data format specifies which controls on a device we
1258      *  are interested in, and how they should be reported.
1259      *
1260      *  This tells DirectInput that we will be passing an array
1261      *  of 256 bytes to IDirectInputDevice::GetDeviceState.
1262      *
1263      *  Parameters:
1264      *
1265      *      c_dfDIKeyboard
1266      *
1267      *          Predefined data format which describes
1268      *          an array of 256 bytes, one per scancode.
1269      */
1270     hr = Di_keyboard->SetDataFormat(&c_dfDIKeyboard);
1271
1272     if (FAILED(hr)) {
1273         mprintf(( "SetDataFormat failed!\n" ));
1274         return FALSE;
1275     }
1276
1277
1278     /*
1279      *  Set the cooperativity level to let DirectInput know how
1280      *  this device should interact with the system and with other
1281      *  DirectInput applications.
1282      *
1283      *  Parameters:
1284      *
1285      *      DISCL_NONEXCLUSIVE
1286      *
1287      *          Retrieve keyboard data when acquired, not interfering
1288      *          with any other applications which are reading keyboard
1289      *          data.
1290      *
1291      *      DISCL_FOREGROUND
1292      *
1293      *          If the user switches away from our application,
1294      *          automatically release the keyboard back to the system.
1295      *
1296      */
1297         hr = Di_keyboard->SetCooperativeLevel((HWND)os_get_window(), DISCL_NONEXCLUSIVE | DISCL_FOREGROUND);
1298
1299         if (FAILED(hr)) {
1300                 mprintf(( "SetCooperativeLevel failed!\n" ));
1301                 return FALSE;
1302         }
1303
1304         DIPROPDWORD hdr;
1305
1306         // Turn on buffering
1307         hdr.diph.dwSize = sizeof(DIPROPDWORD);
1308         hdr.diph.dwHeaderSize = sizeof(DIPROPHEADER);
1309         hdr.diph.dwObj = 0;
1310         hdr.diph.dwHow = DIPH_DEVICE;   // Apply to entire device
1311         hdr.dwData = 16;        //MAX_BUFFERED_KEYBOARD_EVENTS;
1312
1313         hr = Di_keyboard->SetProperty( DIPROP_BUFFERSIZE, &hdr.diph );
1314         if (FAILED(hr)) {
1315                 mprintf(( "SetProperty DIPROP_BUFFERSIZE failed\n" ));
1316                 return FALSE;
1317         }
1318
1319
1320         Di_event = CreateEvent( NULL, FALSE, FALSE, NULL );
1321         Assert(Di_event != NULL);
1322
1323         Di_thread = CreateThread(NULL, 1024, (LPTHREAD_START_ROUTINE)di_process, NULL, 0, &Di_thread_id);
1324         Assert( Di_thread != NULL );
1325
1326         SetThreadPriority(Di_thread, THREAD_PRIORITY_HIGHEST);
1327
1328         hr = Di_keyboard->SetEventNotification(Di_event);
1329         if (FAILED(hr)) {
1330                 mprintf(( "SetEventNotification failed\n" ));
1331                 return FALSE;
1332         }
1333
1334         Di_keyboard->Acquire();
1335
1336         return TRUE;
1337 }
1338
1339 void di_cleanup()
1340 {
1341     /*
1342      *  Destroy any lingering IDirectInputDevice object.
1343      */
1344     if (Di_keyboard) {
1345
1346         /*
1347          *  Cleanliness is next to godliness.  Unacquire the device
1348          *  one last time just in case we got really confused and tried
1349          *  to exit while the device is still acquired.
1350          */
1351         Di_keyboard->Unacquire();
1352
1353         Di_keyboard->Release();
1354         Di_keyboard = NULL;
1355     }
1356
1357     /*
1358      *  Destroy any lingering IDirectInput object.
1359      */
1360     if (Di_object) {
1361         Di_object->Release();
1362         Di_object = NULL;
1363     }
1364
1365         if ( Di_event ) {
1366                 CloseHandle(Di_event);
1367                 Di_event = NULL;
1368         }
1369
1370 }
1371
1372 #endif