arch/sdl/key.c

   1 /*
   2  *
   3  * SDL keyboard input support
   4  *
   5  *
   6  */
   7
   8 #ifdef HAVE_CONFIG_H
   9 #include <conf.h>
  10 #endif
  11
  12 #include <stdio.h>
  13 #include <stdlib.h>
  14
  15 #include <SDL.h>
  16
  17 #include "inferno.h"
  18 #include "game.h"
  19 #include "event.h"
  20 #include "error.h"
  21 #include "key.h"
  22 #include "timer.h"
  23 #include "console.h"
  24 #include "u_mem.h"
  25
  26
  27 #define KEY_BUFFER_SIZE 16
  28
  29 static unsigned char Installed = 0;
  30
  31 //-------- Variable accessed by outside functions ---------
  32 unsigned char           keyd_buffer_type; // 0=No buffer, 1=buffer ASCII, 2=buffer scans
  33 unsigned char           keyd_repeat;
  34 unsigned char           keyd_editor_mode;
  35 volatile unsigned char  keyd_last_pressed;
  36 volatile unsigned char  keyd_last_released;
  37 volatile unsigned char  keyd_pressed[256];
  38 volatile int            keyd_time_when_last_pressed;
  39
  40 typedef struct Key_info {
  41         ubyte   state;          // state of key 1 == down, 0 == up
  42         ubyte   last_state;     // previous state of key
  43         int     counter;        // incremented each time key is down in handler
  44         fix     timewentdown;   // simple counter incremented each time in interrupt and key is down
  45         fix     timehelddown;   // counter to tell how long key is down -- gets reset to 0 by key routines
  46         ubyte   downcount;      // number of key counts key was down
  47         ubyte   upcount;        // number of times key was released
  48 } Key_info;
  49
  50 typedef struct keyboard {
  51         unsigned short  keybuffer[KEY_BUFFER_SIZE];
  52         Key_info        keys[256];
  53         fix             time_pressed[KEY_BUFFER_SIZE];
  54         unsigned int    keyhead, keytail;
  55 } keyboard;
  56
  57 static keyboard key_data;
  58
  59 typedef struct key_props {
  60         char *key_text;
  61         unsigned char ascii_value;
  62         unsigned char shifted_ascii_value;
  63         SDLKey sym;
  64 } key_props;
  65
  66 key_props key_properties[256] = {
  67 { "",       255,    255,    -1                 },
  68 { "ESC",    255,    255,    SDLK_ESCAPE        },
  69 { "1",      '1',    '!',    SDLK_1             },
  70 { "2",      '2',    '@',    SDLK_2             },
  71 { "3",      '3',    '#',    SDLK_3             },
  72 { "4",      '4',    '$',    SDLK_4             },
  73 { "5",      '5',    '%',    SDLK_5             },
  74 { "6",      '6',    '^',    SDLK_6             },
  75 { "7",      '7',    '&',    SDLK_7             },
  76 { "8",      '8',    '*',    SDLK_8             },
  77 { "9",      '9',    '(',    SDLK_9             },
  78 { "0",      '0',    ')',    SDLK_0             },
  79 { "-",      '-',    '_',    SDLK_MINUS         },
  80 { "=",      '=',    '+',    SDLK_EQUALS        },
  81 { "BSPC",   255,    255,    SDLK_BACKSPACE     },
  82 { "TAB",    255,    255,    SDLK_TAB           },
  83 { "Q",      'q',    'Q',    SDLK_q             },
  84 { "W",      'w',    'W',    SDLK_w             },
  85 { "E",      'e',    'E',    SDLK_e             },
  86 { "R",      'r',    'R',    SDLK_r             },
  87 { "T",      't',    'T',    SDLK_t             },
  88 { "Y",      'y',    'Y',    SDLK_y             },
  89 { "U",      'u',    'U',    SDLK_u             },
  90 { "I",      'i',    'I',    SDLK_i             },
  91 { "O",      'o',    'O',    SDLK_o             },
  92 { "P",      'p',    'P',    SDLK_p             },
  93 { "[",      '[',    '{',    SDLK_LEFTBRACKET   },
  94 { "]",      ']',    '}',    SDLK_RIGHTBRACKET  },
  95 { "RETURN", 255,    255,    SDLK_RETURN        },
  96 { "LCTRL",  255,    255,    SDLK_LCTRL         },
  97 { "A",      'a',    'A',    SDLK_a             },
  98 { "S",      's',    'S',    SDLK_s             },
  99 { "D",      'd',    'D',    SDLK_d             },
 100 { "F",      'f',    'F',    SDLK_f             },
 101 { "G",      'g',    'G',    SDLK_g             },
 102 { "H",      'h',    'H',    SDLK_h             },
 103 { "J",      'j',    'J',    SDLK_j             },
 104 { "K",      'k',    'K',    SDLK_k             },
 105 { "L",      'l',    'L',    SDLK_l             },
 106 { ";",      ';',    ':',    SDLK_SEMICOLON     },
 107 { "'",     '\'',    '"',    SDLK_QUOTE         },
 108 { "`",      '`',    '~',    SDLK_BACKQUOTE     },
 109 { "LSHFT",  255,    255,    SDLK_LSHIFT        },
 110 { "\\",    '\\',    '|',    SDLK_BACKSLASH     },
 111 { "Z",      'z',    'Z',    SDLK_z             },
 112 { "X",      'x',    'X',    SDLK_x             },
 113 { "C",      'c',    'C',    SDLK_c             },
 114 { "V",      'v',    'V',    SDLK_v             },
 115 { "B",      'b',    'B',    SDLK_b             },
 116 { "N",      'n',    'N',    SDLK_n             },
 117 { "M",      'm',    'M',    SDLK_m             },
 118 { ",",      ',',    '<',    SDLK_COMMA         },
 119 { ".",      '.',    '>',    SDLK_PERIOD        },
 120 { "/",      '/',    '?',    SDLK_SLASH         },
 121 { "RSHFT",  255,    255,    SDLK_RSHIFT        },
 122 { "PAD*",   '*',    255,    SDLK_KP_MULTIPLY   },
 123 { "LALT",   255,    255,    SDLK_LALT          },
 124 { "SPC",    ' ',    ' ',    SDLK_SPACE         },
 125 { "CPSLK",  255,    255,    SDLK_CAPSLOCK      },
 126 { "F1",     255,    255,    SDLK_F1            },
 127 { "F2",     255,    255,    SDLK_F2            },
 128 { "F3",     255,    255,    SDLK_F3            },
 129 { "F4",     255,    255,    SDLK_F4            },
 130 { "F5",     255,    255,    SDLK_F5            },
 131 { "F6",     255,    255,    SDLK_F6            },
 132 { "F7",     255,    255,    SDLK_F7            },
 133 { "F8",     255,    255,    SDLK_F8            },
 134 { "F9",     255,    255,    SDLK_F9            },
 135 { "F10",    255,    255,    SDLK_F10           },
 136 { "NMLCK",  255,    255,    SDLK_NUMLOCK       },
 137 { "SCLK",   255,    255,    SDLK_SCROLLOCK     },
 138 { "PAD7",   255,    255,    SDLK_KP7           },
 139 { "PAD8",   255,    255,    SDLK_KP8           },
 140 { "PAD9",   255,    255,    SDLK_KP9           },
 141 { "PAD-",   255,    255,    SDLK_KP_MINUS      },
 142 { "PAD4",   255,    255,    SDLK_KP4           },
 143 { "PAD5",   255,    255,    SDLK_KP5           },
 144 { "PAD6",   255,    255,    SDLK_KP6           },
 145 { "PAD+",   255,    255,    SDLK_KP_PLUS       },
 146 { "PAD1",   255,    255,    SDLK_KP1           },
 147 { "PAD2",   255,    255,    SDLK_KP2           },
 148 { "PAD3",   255,    255,    SDLK_KP3           },
 149 { "PAD0",   255,    255,    SDLK_KP0           },
 150 { "PAD.",   255,    255,    SDLK_KP_PERIOD     },
 151 { "",       255,    255,    -1                 },
 152 { "",       255,    255,    -1                 },
 153 { "",       255,    255,    -1                 },
 154 { "F11",    255,    255,    SDLK_F11           },
 155 { "F12",    255,    255,    SDLK_F12           },
 156 { "F13",    255,    255,    SDLK_F13           },
 157 { "F14",    255,    255,    SDLK_F14           },
 158 { "F15",    255,    255,    SDLK_F15           },
 159 #ifdef __APPLE__
 160 { "F16",    255,    255,    0x106A             },
 161 { "F17",    255,    255,    0x1040             },
 162 { "F18",    255,    255,    0x104F             },
 163 { "F19",    255,    255,    0x1050             },
 164 #else
 165 { "",       255,    255,    -1                 },
 166 { "",       255,    255,    -1                 },
 167 { "",       255,    255,    -1                 },
 168 { "",       255,    255,    -1                 },
 169 #endif
 170 { "",       255,    255,    -1                 },
 171 { "PAUSE",  255,    255,    SDLK_PAUSE         },
 172 { "",       255,    255,    -1                 },
 173 { "",       255,    255,    -1                 },
 174 { "",       255,    255,    -1                 },
 175 { "",       255,    255,    -1                 },
 176 { "",       255,    255,    -1                 },
 177 { "",       255,    255,    -1                 },
 178 { "",       255,    255,    -1                 },
 179 { "",       255,    255,    -1                 },
 180 { "",       255,    255,    -1                 },
 181 { "",       255,    255,    -1                 },
 182 { "",       255,    255,    -1                 },
 183 { "",       255,    255,    -1                 },
 184 { "",       255,    255,    -1                 },
 185 { "",       255,    255,    -1                 },
 186 { "",       255,    255,    -1                 },
 187 { "",       255,    255,    -1                 },
 188 { "",       255,    255,    -1                 },
 189 { "",       255,    255,    -1                 },
 190 { "",       255,    255,    -1                 },
 191 { "",       255,    255,    -1                 },
 192 { "",       255,    255,    -1                 },
 193 { "",       255,    255,    -1                 },
 194 { "",       255,    255,    -1                 },
 195 { "",       255,    255,    -1                 },
 196 { "",       255,    255,    -1                 },
 197 { "",       255,    255,    -1                 },
 198 { "",       255,    255,    -1                 },
 199 { "",       255,    255,    -1                 },
 200 { "",       255,    255,    -1                 },
 201 { "",       255,    255,    -1                 },
 202 { "",       255,    255,    -1                 },
 203 { "",       255,    255,    -1                 },
 204 { "",       255,    255,    -1                 },
 205 { "",       255,    255,    -1                 },
 206 { "",       255,    255,    -1                 },
 207 { "",       255,    255,    -1                 },
 208 { "",       255,    255,    -1                 },
 209 { "",       255,    255,    -1                 },
 210 { "",       255,    255,    -1                 },
 211 { "",       255,    255,    -1                 },
 212 { "",       255,    255,    -1                 },
 213 { "",       255,    255,    -1                 },
 214 { "",       255,    255,    -1                 },
 215 { "",       255,    255,    -1                 },
 216 { "",       255,    255,    -1                 },
 217 { "",       255,    255,    -1                 },
 218 { "",       255,    255,    -1                 },
 219 { "",       255,    255,    -1                 },
 220 { "",       255,    255,    -1                 },
 221 { "",       255,    255,    -1                 },
 222 { "",       255,    255,    -1                 },
 223 { "",       255,    255,    -1                 },
 224 { "",       255,    255,    -1                 },
 225 { "",       255,    255,    -1                 },
 226 { "",       255,    255,    -1                 },
 227 { "",       255,    255,    -1                 },
 228 { "",       255,    255,    -1                 },
 229 { "PAD=",   255,    255,    SDLK_KP_EQUALS     },
 230 { "ENTER",  255,    255,    SDLK_KP_ENTER      },
 231 { "RCTRL",  255,    255,    SDLK_RCTRL         },
 232 { "LCMD",   255,    255,    SDLK_LMETA         },
 233 { "RCMD",   255,    255,    SDLK_RMETA         },
 234 { "",       255,    255,    -1                 },
 235 { "",       255,    255,    -1                 },
 236 { "",       255,    255,    -1                 },
 237 { "",       255,    255,    -1                 },
 238 { "",       255,    255,    -1                 },
 239 { "",       255,    255,    -1                 },
 240 { "",       255,    255,    -1                 },
 241 { "",       255,    255,    -1                 },
 242 { "",       255,    255,    -1                 },
 243 { "",       255,    255,    -1                 },
 244 { "",       255,    255,    -1                 },
 245 { "",       255,    255,    -1                 },
 246 { "",       255,    255,    -1                 },
 247 { "",       255,    255,    -1                 },
 248 { "",       255,    255,    -1                 },
 249 { "",       255,    255,    -1                 },
 250 { "",       255,    255,    -1                 },
 251 { "",       255,    255,    -1                 },
 252 { "",       255,    255,    -1                 },
 253 { "",       255,    255,    -1                 },
 254 { "",       255,    255,    -1                 },
 255 { "PAD/",   255,    255,    SDLK_KP_DIVIDE     },
 256 { "",       255,    255,    -1                 },
 257 { "PRSCR",  255,    255,    SDLK_PRINT         },
 258 { "RALT",   255,    255,    SDLK_RALT          },
 259 { "",       255,    255,    -1                 },
 260 { "",       255,    255,    -1                 },
 261 { "",       255,    255,    -1                 },
 262 { "",       255,    255,    -1                 },
 263 { "",       255,    255,    -1                 },
 264 { "",       255,    255,    -1                 },
 265 { "",       255,    255,    -1                 },
 266 { "",       255,    255,    -1                 },
 267 { "",       255,    255,    -1                 },
 268 { "",       255,    255,    -1                 },
 269 { "",       255,    255,    -1                 },
 270 { "",       255,    255,    -1                 },
 271 { "",       255,    255,    -1                 },
 272 { "",       255,    255,    -1                 },
 273 { "HOME",   255,    255,    SDLK_HOME          },
 274 { "UP",     255,    255,    SDLK_UP            },
 275 { "PGUP",   255,    255,    SDLK_PAGEUP        },
 276 { "",       255,    255,    -1                 },
 277 { "LEFT",   255,    255,    SDLK_LEFT          },
 278 { "",       255,    255,    -1                 },
 279 { "RIGHT",  255,    255,    SDLK_RIGHT         },
 280 { "",       255,    255,    -1                 },
 281 { "END",    255,    255,    SDLK_END           },
 282 { "DOWN",   255,    255,    SDLK_DOWN          },
 283 { "PGDN",   255,    255,    SDLK_PAGEDOWN      },
 284 { "INS",    255,    255,    SDLK_INSERT        },
 285 { "DEL",    255,    255,    SDLK_DELETE        },
 286 { "",       255,    255,    -1                 },
 287 { "",       255,    255,    -1                 },
 288 { "",       255,    255,    -1                 },
 289 { "",       255,    255,    -1                 },
 290 { "",       255,    255,    -1                 },
 291 { "",       255,    255,    -1                 },
 292 { "",       255,    255,    -1                 },
 293 { "",       255,    255,    -1                 },
 294 { "",       255,    255,    -1                 },
 295 { "",       255,    255,    -1                 },
 296 { "",       255,    255,    -1                 },
 297 { "",       255,    255,    -1                 },
 298 { "",       255,    255,    -1                 },
 299 { "",       255,    255,    -1                 },
 300 { "",       255,    255,    -1                 },
 301 { "",       255,    255,    -1                 },
 302 { "",       255,    255,    -1                 },
 303 { "",       255,    255,    -1                 },
 304 { "",       255,    255,    -1                 },
 305 { "",       255,    255,    -1                 },
 306 { "",       255,    255,    -1                 },
 307 { "",       255,    255,    -1                 },
 308 { "",       255,    255,    -1                 },
 309 { "",       255,    255,    -1                 },
 310 { "",       255,    255,    -1                 },
 311 { "",       255,    255,    -1                 },
 312 { "",       255,    255,    -1                 },
 313 { "",       255,    255,    -1                 },
 314 { "",       255,    255,    -1                 },
 315 { "",       255,    255,    -1                 },
 316 { "",       255,    255,    -1                 },
 317 { "",       255,    255,    -1                 },
 318 { "",       255,    255,    -1                 },
 319 { "",       255,    255,    -1                 },
 320 { "",       255,    255,    -1                 },
 321 { "",       255,    255,    -1                 },
 322 { "",       255,    255,    -1                 },
 323 { "",       255,    255,    -1                 },
 324 { "",       255,    255,    -1                 },
 325 { "",       255,    255,    -1                 },
 326 { "",       255,    255,    -1                 },
 327 { "",       255,    255,    -1                 },
 328 { "",       255,    255,    -1                 },
 329 { "",       255,    255,    -1                 },
 330 };
 331
 332 char *key_text[256];
 333
 334
 335 unsigned char key_to_ascii(int keycode )
 336 {
 337         int shifted;
 338
 339         shifted = keycode & KEY_SHIFTED;
 340         keycode &= 0xFF;
 341
 342         if (shifted)
 343                 return key_properties[keycode].shifted_ascii_value;
 344         else
 345                 return key_properties[keycode].ascii_value;
 346 }
 347
 348
 349 /* The list of keybindings */
 350 static char *key_binding_list[256];
 351
 352
 353 /* get the action bound to a key, if any */
 354 char *key_binding(ubyte keycode)
 355 {
 356         return key_binding_list[keycode];
 357 }
 358
 359
 360 /* Write key bindings to file */
 361 void key_write_bindings(CFILE *file)
 362 {
 363         int i;
 364
 365         for (i = 0; i < 256; i++)
 366                 if (key_binding_list[i])
 367                         PHYSFSX_printf(file, "bind %s \"%s\"\n", key_text[i], key_binding_list[i]);
 368 }
 369
 370
 371 /* bind */
 372 void key_cmd_bind(int argc, char **argv)
 373 {
 374         char buf[CMD_MAX_LENGTH] = "";
 375         int key = -1;
 376         int i;
 377
 378         if (argc < 2)
 379         {
 380                 con_printf(CON_NORMAL, "key bindings:\n");
 381                 for (i = 0; i < 256; i++) {
 382                         if (!key_binding_list[i])
 383                                 continue;
 384                         con_printf(CON_NORMAL, "%s: %s\n", key_text[i], key_binding_list[i]);
 385                 }
 386                 return;
 387         }
 388
 389         for (i = 0; i < 256; i++) {
 390                 if (!stricmp(argv[1], key_text[i])) {
 391                         key = i;
 392                         break;
 393                 }
 394         }
 395
 396         if (key < 0) {
 397                 con_printf(CON_CRITICAL, "bind: key %s not found\n", argv[1]);
 398                 return;
 399         }
 400
 401         if (argc < 3) {
 402                 if (key_binding_list[key])
 403                         con_printf(CON_NORMAL, "%s: %s\n", key_text[key], key_binding_list[key]);
 404                 else
 405                         con_printf(CON_NORMAL, "%s is unbound\n", key_text[key]);
 406                 return;
 407         }
 408
 409         for (i = 2; i < argc; i++) {
 410                 if (i > 2)
 411                         strncat(buf, " ", CMD_MAX_LENGTH);
 412                 strncat(buf, argv[i], CMD_MAX_LENGTH);
 413         }
 414
 415         if (key_binding_list[key])
 416                 d_free(key_binding_list[key]);
 417         key_binding_list[key] = d_strdup(buf);
 418 }
 419
 420
 421 /* unbind */
 422 void key_cmd_unbind(int argc, char **argv)
 423 {
 424         unsigned int key;
 425
 426         if (argc < 2)
 427                 return;
 428
 429         for (key = 0; key < 256; key++) {
 430                 if (!stricmp(argv[1], key_text[key])) {
 431                         break;
 432                 }
 433         }
 434
 435         if (key_binding_list[key])
 436                 d_free(key_binding_list[key]);
 437         key_binding_list[key] = NULL;
 438 }
 439
 440
 441 static void key_handle_binding(int keycode, int state)
 442 {
 443         if (!key_binding_list[keycode])
 444                 return;
 445
 446         if (Game_paused)
 447                 return;
 448
 449         if (Function_mode != FMODE_GAME)
 450                 return;
 451
 452         if (CON_isVisible())
 453                 return;
 454
 455         if (!state && key_binding_list[keycode][0] == '+')
 456                 cmd_appendf("-%s", &key_binding_list[keycode][1]);
 457         else if (state)
 458                 cmd_append(key_binding_list[keycode]);
 459 }
 460
 461
 462 void key_handler(SDL_KeyboardEvent *event)
 463 {
 464         ubyte state;
 465         int i, keycode, event_key, key_state;
 466         Key_info *key;
 467         unsigned char temp;
 468
 469         if (event->keysym.sym != SDLK_UNKNOWN)
 470                 event_key = event->keysym.sym;
 471         else
 472                 event_key = 0x1000 | event->keysym.scancode; // hardware scancode, definitions in #ifdefs above
 473
 474         key_state = (event->state == SDL_PRESSED);
 475         //=====================================================
 476         //Here a translation from win keycodes to mac keycodes!
 477         //=====================================================
 478
 479         for (i = 255; i >= 0; i--) {
 480
 481                 keycode = i;
 482                 key = &(key_data.keys[keycode]);
 483                 if (key_properties[i].sym == event_key) {
 484                         state = key_state;
 485                         key_handle_binding(keycode, state);
 486                 } else
 487                         state = key->last_state;
 488
 489                 if ( key->last_state == state ) {
 490                         if (state) {
 491                                 key->counter++;
 492                                 keyd_last_pressed = keycode;
 493                                 keyd_time_when_last_pressed = timer_get_fixed_seconds();
 494                         }
 495                 } else {
 496                         if (state) {
 497                                 keyd_last_pressed = keycode;
 498                                 keyd_pressed[keycode] = 1;
 499                                 key->downcount += state;
 500                                 key->state = 1;
 501                                 key->timewentdown = keyd_time_when_last_pressed = timer_get_fixed_seconds();
 502                                 key->counter++;
 503                         } else {
 504                                 keyd_pressed[keycode] = 0;
 505                                 keyd_last_released = keycode;
 506                                 key->upcount += key->state;
 507                                 key->state = 0;
 508                                 key->counter = 0;
 509                                 key->timehelddown += timer_get_fixed_seconds() - key->timewentdown;
 510                         }
 511                 }
 512                 if ( (state && !key->last_state) || (state && key->last_state && (key->counter > 30) && (key->counter & 0x01)) ) {
 513                         if ( keyd_pressed[KEY_LSHIFT] || keyd_pressed[KEY_RSHIFT])
 514                                 keycode |= KEY_SHIFTED;
 515                         if ( keyd_pressed[KEY_LALT] || keyd_pressed[KEY_RALT])
 516                                 keycode |= KEY_ALTED;
 517                         if ( keyd_pressed[KEY_LCTRL] || keyd_pressed[KEY_RCTRL])
 518                                 keycode |= KEY_CTRLED;
 519                         if ( keyd_pressed[KEY_LMETA] || keyd_pressed[KEY_RMETA])
 520                                 keycode |= KEY_METAED;
 521                         if ( keyd_pressed[KEY_DELETE] )
 522                                 keycode |= KEY_DEBUGGED;
 523
 524                         temp = key_data.keytail + 1;
 525                         if ( temp >= KEY_BUFFER_SIZE ) temp=0;
 526                         if (temp!=key_data.keyhead)     {
 527                                 key_data.keybuffer[key_data.keytail] = keycode;
 528                                 key_data.time_pressed[key_data.keytail] = keyd_time_when_last_pressed;
 529                                 key_data.keytail = temp;
 530                         }
 531                 }
 532                 key->last_state = state;
 533         }
 534 }
 535
 536 void key_close()
 537 {
 538         int i;
 539
 540         for (i = 0; i < 256; i++)
 541                 if (key_binding_list[i])
 542                         d_free(key_binding_list[i]);
 543
 544         Installed = 0;
 545 }
 546
 547 void key_init()
 548 {
 549         int i;
 550
 551         if (Installed) return;
 552
 553         Installed=1;
 554
 555         keyd_time_when_last_pressed = timer_get_fixed_seconds();
 556         keyd_buffer_type = 1;
 557         keyd_repeat = 1;
 558
 559         for(i=0; i<256; i++)
 560                 key_text[i] = key_properties[i].key_text;
 561
 562         cmd_addcommand("bind", key_cmd_bind);
 563         cmd_addcommand("unbind", key_cmd_unbind);
 564
 565         // Clear the keyboard array
 566         key_flush();
 567         atexit(key_close);
 568 }
 569
 570 void key_flush()
 571 {
 572         int i;
 573         fix curtime;
 574
 575         if (!Installed)
 576                 key_init();
 577
 578         key_data.keyhead = key_data.keytail = 0;
 579
 580         //Clear the keyboard buffer
 581         for (i=0; i<KEY_BUFFER_SIZE; i++ ) {
 582                 key_data.keybuffer[i] = 0;
 583                 key_data.time_pressed[i] = 0;
 584         }
 585
 586 //use gettimeofday here:
 587         curtime = timer_get_fixed_seconds();
 588
 589         for (i=0; i<256; i++) {
 590                 keyd_pressed[i] = 0;
 591                 key_data.keys[i].state = 1;
 592                 key_data.keys[i].last_state = 0;
 593                 key_data.keys[i].timewentdown = curtime;
 594                 key_data.keys[i].downcount = 0;
 595                 key_data.keys[i].upcount = 0;
 596                 key_data.keys[i].timehelddown = 0;
 597                 key_data.keys[i].counter = 0;
 598         }
 599 }
 600
 601 int add_one(int n)
 602 {
 603         n++;
 604         if ( n >= KEY_BUFFER_SIZE ) n = 0;
 605
 606         return n;
 607 }
 608
 609 int key_checkch()
 610 {
 611         int is_one_waiting = 0;
 612
 613         event_poll();
 614         if (key_data.keytail != key_data.keyhead)
 615                 is_one_waiting = 1;
 616
 617         return is_one_waiting;
 618 }
 619
 620 int key_inkey()
 621 {
 622         int key = 0;
 623
 624         if (!Installed)
 625                 key_init();
 626
 627         event_poll();
 628         if (key_data.keytail!=key_data.keyhead) {
 629                 key = key_data.keybuffer[key_data.keyhead];
 630                 key_data.keyhead = add_one(key_data.keyhead);
 631         }
 632         else
 633                 timer_delay(1);
 634
 635         return key;
 636 }
 637
 638 int key_inkey_time(fix * time)
 639 {
 640         int key = 0;
 641
 642         if (!Installed)
 643                 key_init();
 644
 645         event_poll();
 646         if (key_data.keytail != key_data.keyhead) {
 647                 key = key_data.keybuffer[key_data.keyhead];
 648                 *time = key_data.time_pressed[key_data.keyhead];
 649                 key_data.keyhead = add_one(key_data.keyhead);
 650         }
 651
 652         return key;
 653 }
 654
 655 int key_peekkey()
 656 {
 657         int key = 0;
 658
 659         event_poll();
 660         if (key_data.keytail != key_data.keyhead)
 661                 key = key_data.keybuffer[key_data.keyhead];
 662
 663         return key;
 664 }
 665
 666 int key_getch()
 667 {
 668         int dummy = 0;
 669
 670         if (!Installed)
 671                 return 0;
 672 //              return getch();
 673
 674         while (!key_checkch())
 675                 dummy++;
 676
 677         return key_inkey();
 678 }
 679
 680 unsigned int key_get_shift_status()
 681 {
 682         unsigned int shift_status = 0;
 683
 684         if ( keyd_pressed[KEY_LSHIFT] || keyd_pressed[KEY_RSHIFT] )
 685                 shift_status |= KEY_SHIFTED;
 686
 687         if ( keyd_pressed[KEY_LALT] || keyd_pressed[KEY_RALT] )
 688                 shift_status |= KEY_ALTED;
 689
 690         if ( keyd_pressed[KEY_LCTRL] || keyd_pressed[KEY_RCTRL] )
 691                 shift_status |= KEY_CTRLED;
 692
 693         if ( keyd_pressed[KEY_LMETA] || keyd_pressed[KEY_RMETA] )
 694                 shift_status |= KEY_METAED;
 695
 696 #ifndef NDEBUG
 697         if (keyd_pressed[KEY_DELETE])
 698                 shift_status |=KEY_DEBUGGED;
 699 #endif
 700
 701         return shift_status;
 702 }
 703
 704 // Returns the number of seconds this key has been down since last call.
 705 fix key_down_time(int scancode)
 706 {
 707         fix time_down, time;
 708
 709         event_poll();
 710         if ((scancode<0) || (scancode>255)) return 0;
 711
 712         if (!keyd_pressed[scancode]) {
 713                 time_down = key_data.keys[scancode].timehelddown;
 714                 key_data.keys[scancode].timehelddown = 0;
 715         } else {
 716                 time = timer_get_fixed_seconds();
 717                 time_down = time - key_data.keys[scancode].timewentdown;
 718                 key_data.keys[scancode].timewentdown = time;
 719         }
 720
 721         return time_down;
 722 }
 723
 724 unsigned int key_down_count(int scancode)
 725 {
 726         int n;
 727
 728         event_poll();
 729         if ((scancode<0) || (scancode>255)) return 0;
 730
 731         n = key_data.keys[scancode].downcount;
 732         key_data.keys[scancode].downcount = 0;
 733
 734         return n;
 735 }
 736
 737 unsigned int key_up_count(int scancode)
 738 {
 739         int n;
 740
 741         event_poll();
 742         if ((scancode<0) || (scancode>255)) return 0;
 743
 744         n = key_data.keys[scancode].upcount;
 745         key_data.keys[scancode].upcount = 0;
 746
 747         return n;
 748 }