1 /* 2 SDL - Simple DirectMedia Layer 3 Copyright (C) 1997-2004 Sam Lantinga 4 5 This library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Library General Public 7 License as published by the Free Software Foundation; either 8 version 2 of the License, or (at your option) any later version. 9 10 This library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Library General Public License for more details. 14 15 You should have received a copy of the GNU Library General Public 16 License along with this library; if not, write to the Free 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18 19 Sam Lantinga 20 slouken (at) libsdl.org 21 */ 22 #include "SDL_config.h" 23 24 /* 25 File added by Alan Buckley (alan_baa (at) hotmail.com) for RISC OS compatability 26 27 March 2003 27 28 Implements keyboard setup, event pump and keyboard and mouse polling 29 */ 30 31 32 #include "SDL.h" 33 #include "../../timer/SDL_timer_c.h" 34 #include "../../events/SDL_sysevents.h" 35 #include "../../events/SDL_events_c.h" 36 #include "../SDL_cursor_c.h" 37 #include "SDL_riscosvideo.h" 38 #include "SDL_riscosevents_c.h" 39 40 #include "memory.h" 41 #include "stdlib.h" 42 #include "ctype.h" 43 44 #include "kernel.h" 45 #include "swis.h" 46 47 /* The translation table from a RISC OS internal key numbers to a SDL keysym */ 48 static SDLKey RO_keymap[SDLK_LAST]; 49 50 /* RISC OS Key codes */ 51 #define ROKEY_SHIFT 0 52 #define ROKEY_CTRL 1 53 #define ROKEY_ALT 2 54 /* Left shift is first key we will check for */ 55 #define ROKEY_LEFT_SHIFT 3 56 57 /* Need to ignore mouse buttons as they are processed separately */ 58 #define ROKEY_LEFT_MOUSE 9 59 #define ROKEY_CENTRE_MOUSE 10 60 #define ROKEY_RIGHT_MOUSE 11 61 62 /* No key has been pressed return value*/ 63 #define ROKEY_NONE 255 64 65 /* Id of last key in keyboard */ 66 #define ROKEY_LAST_KEY 124 67 68 /* Size of array for all keys */ 69 #define ROKEYBD_ARRAYSIZE 125 70 71 static char RO_pressed[ROKEYBD_ARRAYSIZE]; 72 73 static SDL_keysym *TranslateKey(int intkey, SDL_keysym *keysym, int pressed); 74 75 void RISCOS_PollMouse(_THIS); 76 void RISCOS_PollKeyboard(); 77 78 void RISCOS_PollMouseHelper(_THIS, int fullscreen); 79 80 #if SDL_THREADS_DISABLED 81 extern void DRenderer_FillBuffers(); 82 83 /* Timer running function */ 84 extern void RISCOS_CheckTimer(); 85 86 #endif 87 88 void FULLSCREEN_PumpEvents(_THIS) 89 { 90 /* Current implementation requires keyboard and mouse polling */ 91 RISCOS_PollKeyboard(); 92 RISCOS_PollMouse(this); 93 #if SDL_THREADS_DISABLED 94 // DRenderer_FillBuffers(); 95 if (SDL_timer_running) RISCOS_CheckTimer(); 96 #endif 97 } 98 99 100 void RISCOS_InitOSKeymap(_THIS) 101 { 102 int i; 103 104 /* Map the VK keysyms */ 105 for ( i=0; i<SDL_arraysize(RO_keymap); ++i ) 106 RO_keymap[i] = SDLK_UNKNOWN; 107 108 RO_keymap[3] = SDLK_LSHIFT; 109 RO_keymap[4] = SDLK_LCTRL; 110 RO_keymap[5] = SDLK_LALT; 111 RO_keymap[6] = SDLK_RSHIFT; 112 RO_keymap[7] = SDLK_RCTRL; 113 RO_keymap[8] = SDLK_RALT; 114 RO_keymap[16] = SDLK_q; 115 RO_keymap[17] = SDLK_3; 116 RO_keymap[18] = SDLK_4; 117 RO_keymap[19] = SDLK_5; 118 RO_keymap[20] = SDLK_F4; 119 RO_keymap[21] = SDLK_8; 120 RO_keymap[22] = SDLK_F7; 121 RO_keymap[23] = SDLK_MINUS, 122 RO_keymap[25] = SDLK_LEFT; 123 RO_keymap[26] = SDLK_KP6; 124 RO_keymap[27] = SDLK_KP7; 125 RO_keymap[28] = SDLK_F11; 126 RO_keymap[29] = SDLK_F12; 127 RO_keymap[30] = SDLK_F10; 128 RO_keymap[31] = SDLK_SCROLLOCK; 129 RO_keymap[32] = SDLK_PRINT; 130 RO_keymap[33] = SDLK_w; 131 RO_keymap[34] = SDLK_e; 132 RO_keymap[35] = SDLK_t; 133 RO_keymap[36] = SDLK_7; 134 RO_keymap[37] = SDLK_i; 135 RO_keymap[38] = SDLK_9; 136 RO_keymap[39] = SDLK_0; 137 RO_keymap[41] = SDLK_DOWN; 138 RO_keymap[42] = SDLK_KP8; 139 RO_keymap[43] = SDLK_KP9; 140 RO_keymap[44] = SDLK_BREAK; 141 RO_keymap[45] = SDLK_BACKQUOTE; 142 /* RO_keymap[46] = SDLK_currency; TODO: Figure out if this has a value */ 143 RO_keymap[47] = SDLK_BACKSPACE; 144 RO_keymap[48] = SDLK_1; 145 RO_keymap[49] = SDLK_2; 146 RO_keymap[50] = SDLK_d; 147 RO_keymap[51] = SDLK_r; 148 RO_keymap[52] = SDLK_6; 149 RO_keymap[53] = SDLK_u; 150 RO_keymap[54] = SDLK_o; 151 RO_keymap[55] = SDLK_p; 152 RO_keymap[56] = SDLK_LEFTBRACKET; 153 RO_keymap[57] = SDLK_UP; 154 RO_keymap[58] = SDLK_KP_PLUS; 155 RO_keymap[59] = SDLK_KP_MINUS; 156 RO_keymap[60] = SDLK_KP_ENTER; 157 RO_keymap[61] = SDLK_INSERT; 158 RO_keymap[62] = SDLK_HOME; 159 RO_keymap[63] = SDLK_PAGEUP; 160 RO_keymap[64] = SDLK_CAPSLOCK; 161 RO_keymap[65] = SDLK_a; 162 RO_keymap[66] = SDLK_x; 163 RO_keymap[67] = SDLK_f; 164 RO_keymap[68] = SDLK_y; 165 RO_keymap[69] = SDLK_j; 166 RO_keymap[70] = SDLK_k; 167 RO_keymap[72] = SDLK_SEMICOLON; 168 RO_keymap[73] = SDLK_RETURN; 169 RO_keymap[74] = SDLK_KP_DIVIDE; 170 RO_keymap[76] = SDLK_KP_PERIOD; 171 RO_keymap[77] = SDLK_NUMLOCK; 172 RO_keymap[78] = SDLK_PAGEDOWN; 173 RO_keymap[79] = SDLK_QUOTE; 174 RO_keymap[81] = SDLK_s; 175 RO_keymap[82] = SDLK_c; 176 RO_keymap[83] = SDLK_g; 177 RO_keymap[84] = SDLK_h; 178 RO_keymap[85] = SDLK_n; 179 RO_keymap[86] = SDLK_l; 180 RO_keymap[87] = SDLK_SEMICOLON; 181 RO_keymap[88] = SDLK_RIGHTBRACKET; 182 RO_keymap[89] = SDLK_DELETE; 183 RO_keymap[90] = SDLK_KP_MINUS; 184 RO_keymap[91] = SDLK_KP_MULTIPLY; 185 RO_keymap[93] = SDLK_EQUALS; 186 RO_keymap[94] = SDLK_BACKSLASH; 187 RO_keymap[96] = SDLK_TAB; 188 RO_keymap[97] = SDLK_z; 189 RO_keymap[98] = SDLK_SPACE; 190 RO_keymap[99] = SDLK_v; 191 RO_keymap[100] = SDLK_b; 192 RO_keymap[101] = SDLK_m; 193 RO_keymap[102] = SDLK_COMMA; 194 RO_keymap[103] = SDLK_PERIOD; 195 RO_keymap[104] = SDLK_SLASH; 196 RO_keymap[105] = SDLK_END; 197 RO_keymap[106] = SDLK_KP0; 198 RO_keymap[107] = SDLK_KP1; 199 RO_keymap[108] = SDLK_KP3; 200 RO_keymap[112] = SDLK_ESCAPE; 201 RO_keymap[113] = SDLK_F1; 202 RO_keymap[114] = SDLK_F2; 203 RO_keymap[115] = SDLK_F3; 204 RO_keymap[116] = SDLK_F5; 205 RO_keymap[117] = SDLK_F6; 206 RO_keymap[118] = SDLK_F8; 207 RO_keymap[119] = SDLK_F9; 208 RO_keymap[120] = SDLK_HASH; 209 RO_keymap[121] = SDLK_RIGHT; 210 RO_keymap[122] = SDLK_KP4; 211 RO_keymap[123] = SDLK_KP5; 212 RO_keymap[124] = SDLK_KP2; 213 214 SDL_memset(RO_pressed, 0, ROKEYBD_ARRAYSIZE); 215 } 216 217 218 /* Variable for mouse relative processing */ 219 int mouse_relative = 0; 220 221 /* Check to see if we need to enter or leave mouse relative mode */ 222 223 void RISCOS_CheckMouseMode(_THIS) 224 { 225 /* If the mouse is hidden and input is grabbed, we use relative mode */ 226 if ( !(SDL_cursorstate & CURSOR_VISIBLE) && 227 (this->input_grab != SDL_GRAB_OFF) ) { 228 mouse_relative = 1; 229 } else { 230 mouse_relative = 0; 231 } 232 } 233 234 235 void RISCOS_PollMouse(_THIS) 236 { 237 RISCOS_PollMouseHelper(this, 1); 238 } 239 240 extern int mouseInWindow; 241 242 void WIMP_PollMouse(_THIS) 243 { 244 /* Only poll when mouse is over the window */ 245 if (!mouseInWindow) return; 246 247 RISCOS_PollMouseHelper(this, 0); 248 } 249 250 /* Static variables so only changes are reported */ 251 static Sint16 last_x = -1, last_y = -1; 252 static int last_buttons = 0; 253 254 /* Share routine between WIMP and FULLSCREEN for polling mouse and 255 passing on events */ 256 void RISCOS_PollMouseHelper(_THIS, int fullscreen) 257 { 258 _kernel_swi_regs regs; 259 static int starting = 1; 260 261 if (_kernel_swi(OS_Mouse, ®s, ®s) == NULL) 262 { 263 Sint16 new_x = regs.r[0]; /* Initialy get as OS units */ 264 Sint16 new_y = regs.r[1]; 265 266 /* Discard mouse events until they let go of the mouse after starting */ 267 if (starting && regs.r[2] != 0) 268 return; 269 else 270 starting = 0; 271 272 if (new_x != last_x || new_y != last_y || last_buttons != regs.r[2]) 273 { 274 /* Something changed so generate appropriate events */ 275 int topLeftX, topLeftY; /* Top left OS units */ 276 int x, y; /* Mouse position in SDL pixels */ 277 278 if (fullscreen) 279 { 280 topLeftX = 0; 281 topLeftY = (this->hidden->height << this->hidden->yeig) - 1; 282 } else 283 { 284 int window_state[9]; 285 286 /* Get current window state */ 287 window_state[0] = this->hidden->window_handle; 288 regs.r[1] = (unsigned int)window_state; 289 _kernel_swi(Wimp_GetWindowState, ®s, ®s); 290 291 topLeftX = window_state[1]; 292 topLeftY = window_state[4]; 293 } 294 295 /* Convert co-ordinates to workspace */ 296 x = new_x - topLeftX; 297 y = topLeftY - new_y; /* Y goes from top of window/screen */ 298 299 /* Convert OS units to pixels */ 300 x >>= this->hidden->xeig; 301 y >>= this->hidden->yeig; 302 303 if (last_x != new_x || last_y != new_y) 304 { 305 if (mouse_relative) 306 { 307 int centre_x = SDL_VideoSurface->w/2; 308 int centre_y = SDL_VideoSurface->h/2; 309 310 if (centre_x != x || centre_y != y) 311 { 312 if (SDL_VideoSurface) SDL_PrivateMouseMotion(0,1,x - centre_x, y - centre_y); 313 last_x = topLeftX + (centre_x << this->hidden->xeig); 314 last_y = topLeftY - (centre_y << this->hidden->yeig); 315 316 /* Re-centre the mouse pointer, so we still get relative 317 movement when the mouse is at the edge of the window 318 or screen. 319 */ 320 { 321 unsigned char block[5]; 322 323 block[0] = 3; /* OSWORD move pointer sub-reason code */ 324 block[1] = last_x & 0xFF; 325 block[2] = (last_x >> 8) & 0xFF; 326 block[3] = last_y & 0xFF; 327 block[4] = (last_y >> 8) & 0xFF; 328 329 regs.r[0] = 21; /* OSWORD pointer stuff code */ 330 regs.r[1] = (int)block; 331 _kernel_swi(OS_Word, ®s, ®s); 332 } 333 } 334 } else 335 { 336 last_x = new_x; 337 last_y = new_y; 338 SDL_PrivateMouseMotion(0,0,x,y); 339 } 340 } 341 342 if (last_buttons != regs.r[2]) 343 { 344 int changed = last_buttons ^ regs.r[2]; 345 last_buttons = regs.r[2]; 346 if (changed & 4) SDL_PrivateMouseButton((last_buttons & 4) ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_LEFT, 0, 0); 347 if (changed & 2) SDL_PrivateMouseButton((last_buttons & 2) ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_MIDDLE, 0, 0); 348 if (changed & 1) SDL_PrivateMouseButton((last_buttons & 1) ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_RIGHT, 0, 0); 349 } 350 } 351 } 352 } 353 354 void RISCOS_PollKeyboard() 355 { 356 int which_key = ROKEY_LEFT_SHIFT; 357 int j; 358 int min_key, max_key; 359 SDL_keysym key; 360 361 /* Scan the keyboard to see what is pressed */ 362 while (which_key <= ROKEY_LAST_KEY) 363 { 364 which_key = (_kernel_osbyte(121, which_key, 0) & 0xFF); 365 if (which_key != ROKEY_NONE) 366 { 367 switch(which_key) 368 { 369 /* Skip over mouse keys */ 370 case ROKEY_LEFT_MOUSE: 371 case ROKEY_CENTRE_MOUSE: 372 case ROKEY_RIGHT_MOUSE: 373 which_key = ROKEY_RIGHT_MOUSE; 374 break; 375 376 /* Ignore keys that cause 2 internal number to be generated */ 377 case 71: case 24: case 87: case 40: 378 break; 379 380 /* Ignore break as it can be latched on */ 381 case 44: 382 break; 383 384 default: 385 RO_pressed[which_key] += 2; 386 break; 387 } 388 which_key++; 389 } 390 } 391 392 /* Generate key released messages */ 393 min_key = ROKEY_LAST_KEY+1; 394 max_key = ROKEY_LEFT_SHIFT; 395 396 for (j = ROKEY_LEFT_SHIFT; j <= ROKEY_LAST_KEY; j++) 397 { 398 if (RO_pressed[j]) 399 { 400 if (RO_pressed[j] == 1) 401 { 402 RO_pressed[j] = 0; 403 SDL_PrivateKeyboard(SDL_RELEASED, TranslateKey(j,&key,0)); 404 } else 405 { 406 if (j < min_key) min_key = j; 407 if (j > max_key) max_key = j; 408 } 409 } 410 } 411 412 /* Generate key pressed messages */ 413 for (j = min_key; j <= max_key; j++) 414 { 415 if (RO_pressed[j]) 416 { 417 if (RO_pressed[j] == 2) 418 { 419 SDL_PrivateKeyboard(SDL_PRESSED,TranslateKey(j,&key,1)); 420 } 421 RO_pressed[j] = 1; 422 } 423 } 424 } 425 426 static SDL_keysym *TranslateKey(int intkey, SDL_keysym *keysym, int pressed) 427 { 428 /* Set the keysym information */ 429 keysym->scancode = (unsigned char) intkey; 430 keysym->sym = RO_keymap[intkey]; 431 keysym->mod = KMOD_NONE; 432 keysym->unicode = 0; 433 if ( pressed && SDL_TranslateUNICODE ) 434 { 435 int state; 436 int ch; 437 438 state = (_kernel_osbyte(202, 0, 255) & 0xFF); 439 440 /*TODO: Take into account other keyboard layouts */ 441 442 ch = keysym->sym; /* This should handle most unshifted keys */ 443 444 if (intkey < 9 || ch == SDLK_UNKNOWN) 445 { 446 ch = 0; 447 448 } else if (state & 64) /* Control on */ 449 { 450 ch = ch & 31; 451 452 } else 453 { 454 int topOfKey = 0; 455 if (state & 8) /* Shift on */ 456 { 457 topOfKey = 1; 458 } 459 460 if ((state & 16) == 0) /* Caps lock is on */ 461 { 462 if (ch >= SDLK_a && ch <= SDLK_z) 463 { 464 if ((state & 128) == 0) /* Shift Enable off */ 465 { 466 /* All letter become upper case */ 467 topOfKey = 1; 468 } else 469 { 470 /* Shift+Letters gives lower case */ 471 topOfKey = 1 - topOfKey; 472 } 473 } 474 } 475 476 if (topOfKey) 477 { 478 /* Key produced with shift held down */ 479 480 /* Letters just give upper case version */ 481 if (ch >= SDLK_a && ch <= SDLK_z) ch = toupper(ch); 482 else 483 { 484 switch(ch) 485 { 486 case SDLK_HASH: ch = '~'; break; 487 case SDLK_QUOTE: ch = '@'; break; 488 case SDLK_COMMA: ch = '<'; break; 489 case SDLK_MINUS: ch = '_'; break; 490 case SDLK_PERIOD: ch = '>'; break; 491 case SDLK_SLASH: ch = '?'; break; 492 493 case SDLK_0: ch = ')'; break; 494 case SDLK_1: ch = '!'; break; 495 case SDLK_2: ch = '"'; break; 496 case SDLK_3: ch = ''; break; 497 case SDLK_4: ch = '$'; break; 498 case SDLK_5: ch = '%'; break; 499 case SDLK_6: ch = '^'; break; 500 case SDLK_7: ch = '&'; break; 501 case SDLK_8: ch = '*'; break; 502 case SDLK_9: ch = '('; break; 503 504 case SDLK_SEMICOLON: ch = ':'; break; 505 case SDLK_EQUALS: ch = '+'; break; 506 case SDLK_LEFTBRACKET: ch = '{'; break; 507 case SDLK_BACKSLASH: ch = '|'; break; 508 case SDLK_RIGHTBRACKET: ch = '}'; break; 509 case SDLK_BACKQUOTE: ch = ''; break; 510 511 default: 512 ch = 0; /* Map to zero character if we don't understand it */ 513 break; 514 } 515 } 516 517 } else if (ch > 126) 518 { 519 /* SDL key code < 126 map directly onto their Unicode equivalents */ 520 /* Keypad 0 to 9 maps to numeric equivalent */ 521 if (ch >= SDLK_KP0 && ch <= SDLK_KP9) ch = ch - SDLK_KP0 + '0'; 522 else 523 { 524 /* Following switch maps other keys that produce an Ascii value */ 525 switch(ch) 526 { 527 case SDLK_KP_PERIOD: ch = '.'; break; 528 case SDLK_KP_DIVIDE: ch = '/'; break; 529 case SDLK_KP_MULTIPLY: ch = '*'; break; 530 case SDLK_KP_MINUS: ch = '-'; break; 531 case SDLK_KP_PLUS: ch = '+'; break; 532 case SDLK_KP_EQUALS: ch = '='; break; 533 534 default: 535 /* If we don't know what it is set the Unicode to 0 */ 536 ch = 0; 537 break; 538 } 539 } 540 } 541 } 542 543 keysym->unicode = ch; 544 } 545 return(keysym); 546 } 547 548 /* end of SDL_riscosevents.c ... */ 549 550
