e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 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@libsdl.org |
21 | */ |
22 | #include "SDL_config.h" |
23 | |
24 | /* |
25 | File added by Alan Buckley (alan_baa@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 |