| 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 Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 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 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | /* Handle the event stream, converting X11 events into SDL events */ |
| 25 | |
| 26 | #include <setjmp.h> |
| 27 | #include <X11/Xlib.h> |
| 28 | #include <X11/Xutil.h> |
| 29 | #include <X11/keysym.h> |
| 30 | #ifdef __SVR4 |
| 31 | #include <X11/Sunkeysym.h> |
| 32 | #endif |
| 33 | #include <sys/types.h> |
| 34 | #include <sys/time.h> |
| 35 | #include <unistd.h> |
| 36 | |
| 37 | #include "SDL_timer.h" |
| 38 | #include "SDL_syswm.h" |
| 39 | #include "../SDL_sysvideo.h" |
| 40 | #include "../../events/SDL_sysevents.h" |
| 41 | #include "../../events/SDL_events_c.h" |
| 42 | #include "SDL_x11video.h" |
| 43 | #include "SDL_x11dga_c.h" |
| 44 | #include "SDL_x11modes_c.h" |
| 45 | #include "SDL_x11image_c.h" |
| 46 | #include "SDL_x11gamma_c.h" |
| 47 | #include "SDL_x11wm_c.h" |
| 48 | #include "SDL_x11mouse_c.h" |
| 49 | #include "SDL_x11events_c.h" |
| 50 | |
| 51 | |
| 52 | /* Define this if you want to debug X11 events */ |
| 53 | /*#define DEBUG_XEVENTS*/ |
| 54 | |
| 55 | /* The translation tables from an X11 keysym to a SDL keysym */ |
| 56 | static SDLKey ODD_keymap[256]; |
| 57 | static SDLKey MISC_keymap[256]; |
| 58 | SDLKey X11_TranslateKeycode(Display *display, KeyCode kc); |
| 59 | |
| 60 | |
| 61 | #ifdef X_HAVE_UTF8_STRING |
| 62 | Uint32 Utf8ToUcs4(const Uint8 *utf8) |
| 63 | { |
| 64 | Uint32 c; |
| 65 | int i = 1; |
| 66 | int noOctets = 0; |
| 67 | int firstOctetMask = 0; |
| 68 | unsigned char firstOctet = utf8[0]; |
| 69 | if (firstOctet < 0x80) { |
| 70 | /* |
| 71 | Characters in the range: |
| 72 | 00000000 to 01111111 (ASCII Range) |
| 73 | are stored in one octet: |
| 74 | 0xxxxxxx (The same as its ASCII representation) |
| 75 | The least 6 significant bits of the first octet is the most 6 significant nonzero bits |
| 76 | of the UCS4 representation. |
| 77 | */ |
| 78 | noOctets = 1; |
| 79 | firstOctetMask = 0x7F; /* 0(1111111) - The most significant bit is ignored */ |
| 80 | } else if ((firstOctet & 0xE0) /* get the most 3 significant bits by AND'ing with 11100000 */ |
| 81 | == 0xC0 ) { /* see if those 3 bits are 110. If so, the char is in this range */ |
| 82 | /* |
| 83 | Characters in the range: |
| 84 | 00000000 10000000 to 00000111 11111111 |
| 85 | are stored in two octets: |
| 86 | 110xxxxx 10xxxxxx |
| 87 | The least 5 significant bits of the first octet is the most 5 significant nonzero bits |
| 88 | of the UCS4 representation. |
| 89 | */ |
| 90 | noOctets = 2; |
| 91 | firstOctetMask = 0x1F; /* 000(11111) - The most 3 significant bits are ignored */ |
| 92 | } else if ((firstOctet & 0xF0) /* get the most 4 significant bits by AND'ing with 11110000 */ |
| 93 | == 0xE0) { /* see if those 4 bits are 1110. If so, the char is in this range */ |
| 94 | /* |
| 95 | Characters in the range: |
| 96 | 00001000 00000000 to 11111111 11111111 |
| 97 | are stored in three octets: |
| 98 | 1110xxxx 10xxxxxx 10xxxxxx |
| 99 | The least 4 significant bits of the first octet is the most 4 significant nonzero bits |
| 100 | of the UCS4 representation. |
| 101 | */ |
| 102 | noOctets = 3; |
| 103 | firstOctetMask = 0x0F; /* 0000(1111) - The most 4 significant bits are ignored */ |
| 104 | } else if ((firstOctet & 0xF8) /* get the most 5 significant bits by AND'ing with 11111000 */ |
| 105 | == 0xF0) { /* see if those 5 bits are 11110. If so, the char is in this range */ |
| 106 | /* |
| 107 | Characters in the range: |
| 108 | 00000001 00000000 00000000 to 00011111 11111111 11111111 |
| 109 | are stored in four octets: |
| 110 | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx |
| 111 | The least 3 significant bits of the first octet is the most 3 significant nonzero bits |
| 112 | of the UCS4 representation. |
| 113 | */ |
| 114 | noOctets = 4; |
| 115 | firstOctetMask = 0x07; /* 11110(111) - The most 5 significant bits are ignored */ |
| 116 | } else if ((firstOctet & 0xFC) /* get the most 6 significant bits by AND'ing with 11111100 */ |
| 117 | == 0xF8) { /* see if those 6 bits are 111110. If so, the char is in this range */ |
| 118 | /* |
| 119 | Characters in the range: |
| 120 | 00000000 00100000 00000000 00000000 to |
| 121 | 00000011 11111111 11111111 11111111 |
| 122 | are stored in five octets: |
| 123 | 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx |
| 124 | The least 2 significant bits of the first octet is the most 2 significant nonzero bits |
| 125 | of the UCS4 representation. |
| 126 | */ |
| 127 | noOctets = 5; |
| 128 | firstOctetMask = 0x03; /* 111110(11) - The most 6 significant bits are ignored */ |
| 129 | } else if ((firstOctet & 0xFE) /* get the most 7 significant bits by AND'ing with 11111110 */ |
| 130 | == 0xFC) { /* see if those 7 bits are 1111110. If so, the char is in this range */ |
| 131 | /* |
| 132 | Characters in the range: |
| 133 | 00000100 00000000 00000000 00000000 to |
| 134 | 01111111 11111111 11111111 11111111 |
| 135 | are stored in six octets: |
| 136 | 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx |
| 137 | The least significant bit of the first octet is the most significant nonzero bit |
| 138 | of the UCS4 representation. |
| 139 | */ |
| 140 | noOctets = 6; |
| 141 | firstOctetMask = 0x01; /* 1111110(1) - The most 7 significant bits are ignored */ |
| 142 | } else |
| 143 | return 0; /* The given chunk is not a valid UTF-8 encoded Unicode character */ |
| 144 | |
| 145 | /* |
| 146 | The least noOctets significant bits of the first octet is the most 2 significant nonzero bits |
| 147 | of the UCS4 representation. |
| 148 | The first 6 bits of the UCS4 representation is the least 8-noOctets-1 significant bits of |
| 149 | firstOctet if the character is not ASCII. If so, it's the least 7 significant bits of firstOctet. |
| 150 | This done by AND'ing firstOctet with its mask to trim the bits used for identifying the |
| 151 | number of continuing octets (if any) and leave only the free bits (the x's) |
| 152 | Sample: |
| 153 | 1-octet: 0xxxxxxx & 01111111 = 0xxxxxxx |
| 154 | 2-octets: 110xxxxx & 00011111 = 000xxxxx |
| 155 | */ |
| 156 | c = firstOctet & firstOctetMask; |
| 157 | |
| 158 | /* Now, start filling c.ucs4 with the bits from the continuing octets from utf8. */ |
| 159 | for (i = 1; i < noOctets; i++) { |
| 160 | /* A valid continuing octet is of the form 10xxxxxx */ |
| 161 | if ((utf8[i] & 0xC0) /* get the most 2 significant bits by AND'ing with 11000000 */ |
| 162 | != 0x80) /* see if those 2 bits are 10. If not, the is a malformed sequence. */ |
| 163 | /*The given chunk is a partial sequence at the end of a string that could |
| 164 | begin a valid character */ |
| 165 | return 0; |
| 166 | |
| 167 | /* Make room for the next 6-bits */ |
| 168 | c <<= 6; |
| 169 | |
| 170 | /* |
| 171 | Take only the least 6 significance bits of the current octet (utf8[i]) and fill the created room |
| 172 | of c.ucs4 with them. |
| 173 | This done by AND'ing utf8[i] with 00111111 and the OR'ing the result with c.ucs4. |
| 174 | */ |
| 175 | c |= utf8[i] & 0x3F; |
| 176 | } |
| 177 | return c; |
| 178 | } |
| 179 | |
| 180 | /* Given a UTF-8 encoded string pointed to by utf8 of length length in |
| 181 | bytes, returns the corresponding UTF-16 encoded string in the |
| 182 | buffer pointed to by utf16. The maximum number of UTF-16 encoding |
| 183 | units (i.e., Unit16s) allowed in the buffer is specified in |
| 184 | utf16_max_length. The return value is the number of UTF-16 |
| 185 | encoding units placed in the output buffer pointed to by utf16. |
| 186 | |
| 187 | In case of an error, -1 is returned, leaving some unusable partial |
| 188 | results in the output buffer. |
| 189 | |
| 190 | The caller must estimate the size of utf16 buffer by itself before |
| 191 | calling this function. Insufficient output buffer is considered as |
| 192 | an error, and once an error occured, this function doesn't give any |
| 193 | clue how large the result will be. |
| 194 | |
| 195 | The error cases include following: |
| 196 | |
| 197 | - Invalid byte sequences were in the input UTF-8 bytes. The caller |
| 198 | has no way to know what point in the input buffer was the |
| 199 | errornous byte. |
| 200 | |
| 201 | - The input contained a character (a valid UTF-8 byte sequence) |
| 202 | whose scalar value exceeded the range that UTF-16 can represent |
| 203 | (i.e., characters whose Unicode scalar value above 0x110000). |
| 204 | |
| 205 | - The output buffer has no enough space to hold entire utf16 data. |
| 206 | |
| 207 | Please note: |
| 208 | |
| 209 | - '\0'-termination is not assumed both on the input UTF-8 string |
| 210 | and on the output UTF-16 string; any legal zero byte in the input |
| 211 | UTF-8 string will be converted to a 16-bit zero in output. As a |
| 212 | side effect, the last UTF-16 encoding unit stored in the output |
| 213 | buffer will have a non-zero value if the input UTF-8 was not |
| 214 | '\0'-terminated. |
| 215 | |
| 216 | - UTF-8 aliases are *not* considered as an error. They are |
| 217 | converted to UTF-16. For example, 0xC0 0xA0, 0xE0 0x80 0xA0, |
| 218 | and 0xF0 0x80 0x80 0xA0 are all mapped to a single UTF-16 |
| 219 | encoding unit 0x0020. |
| 220 | |
| 221 | - Three byte UTF-8 sequences whose value corresponds to a surrogate |
| 222 | code or other reserved scalar value are not considered as an |
| 223 | error either. They may cause an invalid UTF-16 data (e.g., those |
| 224 | containing unpaired surrogates). |
| 225 | |
| 226 | */ |
| 227 | |
| 228 | static int Utf8ToUtf16(const Uint8 *utf8, const int utf8_length, Uint16 *utf16, const int utf16_max_length) { |
| 229 | |
| 230 | /* p moves over the output buffer. max_ptr points to the next to the last slot of the buffer. */ |
| 231 | Uint16 *p = utf16; |
| 232 | Uint16 const *const max_ptr = utf16 + utf16_max_length; |
| 233 | |
| 234 | /* end_of_input points to the last byte of input as opposed to the next to the last byte. */ |
| 235 | Uint8 const *const end_of_input = utf8 + utf8_length - 1; |
| 236 | |
| 237 | while (utf8 <= end_of_input) { |
| 238 | Uint8 const c = *utf8; |
| 239 | if (p >= max_ptr) { |
| 240 | /* No more output space. */ |
| 241 | return -1; |
| 242 | } |
| 243 | if (c < 0x80) { |
| 244 | /* One byte ASCII. */ |
| 245 | *p++ = c; |
| 246 | utf8 += 1; |
| 247 | } else if (c < 0xC0) { |
| 248 | /* Follower byte without preceeding leader bytes. */ |
| 249 | return -1; |
| 250 | } else if (c < 0xE0) { |
| 251 | /* Two byte sequence. We need one follower byte. */ |
| 252 | if (end_of_input - utf8 < 1 || (((utf8[1] ^ 0x80)) & 0xC0)) { |
| 253 | return -1; |
| 254 | } |
| 255 | *p++ = (Uint16)(0xCF80 + (c << 6) + utf8[1]); |
| 256 | utf8 += 2; |
| 257 | } else if (c < 0xF0) { |
| 258 | /* Three byte sequence. We need two follower byte. */ |
| 259 | if (end_of_input - utf8 < 2 || (((utf8[1] ^ 0x80) | (utf8[2] ^ 0x80)) & 0xC0)) { |
| 260 | return -1; |
| 261 | } |
| 262 | *p++ = (Uint16)(0xDF80 + (c << 12) + (utf8[1] << 6) + utf8[2]); |
| 263 | utf8 += 3; |
| 264 | } else if (c < 0xF8) { |
| 265 | int plane; |
| 266 | /* Four byte sequence. We need three follower bytes. */ |
| 267 | if (end_of_input - utf8 < 3 || (((utf8[1] ^ 0x80) | (utf8[2] ^0x80) | (utf8[3] ^ 0x80)) & 0xC0)) { |
| 268 | return -1; |
| 269 | } |
| 270 | plane = (-0xC8 + (c << 2) + (utf8[1] >> 4)); |
| 271 | if (plane == 0) { |
| 272 | /* This four byte sequence is an alias that |
| 273 | corresponds to a Unicode scalar value in BMP. |
| 274 | It fits in an UTF-16 encoding unit. */ |
| 275 | *p++ = (Uint16)(0xDF80 + (utf8[1] << 12) + (utf8[2] << 6) + utf8[3]); |
| 276 | } else if (plane <= 16) { |
| 277 | /* This is a legal four byte sequence that corresponds to a surrogate pair. */ |
| 278 | if (p + 1 >= max_ptr) { |
| 279 | /* No enough space on the output buffer for the pair. */ |
| 280 | return -1; |
| 281 | } |
| 282 | *p++ = (Uint16)(0xE5B8 + (c << 8) + (utf8[1] << 2) + (utf8[2] >> 4)); |
| 283 | *p++ = (Uint16)(0xDB80 + ((utf8[2] & 0x0F) << 6) + utf8[3]); |
| 284 | } else { |
| 285 | /* This four byte sequence is out of UTF-16 code space. */ |
| 286 | return -1; |
| 287 | } |
| 288 | utf8 += 4; |
| 289 | } else { |
| 290 | /* Longer sequence or unused byte. */ |
| 291 | return -1; |
| 292 | } |
| 293 | } |
| 294 | return p - utf16; |
| 295 | } |
| 296 | |
| 297 | #endif |
| 298 | |
| 299 | /* Check to see if this is a repeated key. |
| 300 | (idea shamelessly lifted from GII -- thanks guys! :) |
| 301 | */ |
| 302 | static int X11_KeyRepeat(Display *display, XEvent *event) |
| 303 | { |
| 304 | XEvent peekevent; |
| 305 | int repeated; |
| 306 | |
| 307 | repeated = 0; |
| 308 | if ( XPending(display) ) { |
| 309 | XPeekEvent(display, &peekevent); |
| 310 | if ( (peekevent.type == KeyPress) && |
| 311 | (peekevent.xkey.keycode == event->xkey.keycode) && |
| 312 | ((peekevent.xkey.time-event->xkey.time) < 2) ) { |
| 313 | repeated = 1; |
| 314 | XNextEvent(display, &peekevent); |
| 315 | } |
| 316 | } |
| 317 | return(repeated); |
| 318 | } |
| 319 | |
| 320 | /* Note: The X server buffers and accumulates mouse motion events, so |
| 321 | the motion event generated by the warp may not appear exactly as we |
| 322 | expect it to. We work around this (and improve performance) by only |
| 323 | warping the pointer when it reaches the edge, and then wait for it. |
| 324 | */ |
| 325 | #define MOUSE_FUDGE_FACTOR 8 |
| 326 | |
| 327 | static __inline__ int X11_WarpedMotion(_THIS, XEvent *xevent) |
| 328 | { |
| 329 | int w, h, i; |
| 330 | int deltax, deltay; |
| 331 | int posted; |
| 332 | |
| 333 | w = SDL_VideoSurface->w; |
| 334 | h = SDL_VideoSurface->h; |
| 335 | deltax = xevent->xmotion.x - mouse_last.x; |
| 336 | deltay = xevent->xmotion.y - mouse_last.y; |
| 337 | #ifdef DEBUG_MOTION |
| 338 | printf("Warped mouse motion: %d,%d\n", deltax, deltay); |
| 339 | #endif |
| 340 | mouse_last.x = xevent->xmotion.x; |
| 341 | mouse_last.y = xevent->xmotion.y; |
| 342 | posted = SDL_PrivateMouseMotion(0, 1, deltax, deltay); |
| 343 | |
| 344 | if ( (xevent->xmotion.x < MOUSE_FUDGE_FACTOR) || |
| 345 | (xevent->xmotion.x > (w-MOUSE_FUDGE_FACTOR)) || |
| 346 | (xevent->xmotion.y < MOUSE_FUDGE_FACTOR) || |
| 347 | (xevent->xmotion.y > (h-MOUSE_FUDGE_FACTOR)) ) { |
| 348 | /* Get the events that have accumulated */ |
| 349 | while ( XCheckTypedEvent(SDL_Display, MotionNotify, xevent) ) { |
| 350 | deltax = xevent->xmotion.x - mouse_last.x; |
| 351 | deltay = xevent->xmotion.y - mouse_last.y; |
| 352 | #ifdef DEBUG_MOTION |
| 353 | printf("Extra mouse motion: %d,%d\n", deltax, deltay); |
| 354 | #endif |
| 355 | mouse_last.x = xevent->xmotion.x; |
| 356 | mouse_last.y = xevent->xmotion.y; |
| 357 | posted += SDL_PrivateMouseMotion(0, 1, deltax, deltay); |
| 358 | } |
| 359 | mouse_last.x = w/2; |
| 360 | mouse_last.y = h/2; |
| 361 | XWarpPointer(SDL_Display, None, SDL_Window, 0, 0, 0, 0, |
| 362 | mouse_last.x, mouse_last.y); |
| 363 | for ( i=0; i<10; ++i ) { |
| 364 | XMaskEvent(SDL_Display, PointerMotionMask, xevent); |
| 365 | if ( (xevent->xmotion.x > |
| 366 | (mouse_last.x-MOUSE_FUDGE_FACTOR)) && |
| 367 | (xevent->xmotion.x < |
| 368 | (mouse_last.x+MOUSE_FUDGE_FACTOR)) && |
| 369 | (xevent->xmotion.y > |
| 370 | (mouse_last.y-MOUSE_FUDGE_FACTOR)) && |
| 371 | (xevent->xmotion.y < |
| 372 | (mouse_last.y+MOUSE_FUDGE_FACTOR)) ) { |
| 373 | break; |
| 374 | } |
| 375 | #ifdef DEBUG_XEVENTS |
| 376 | printf("Lost mouse motion: %d,%d\n", xevent->xmotion.x, xevent->xmotion.y); |
| 377 | #endif |
| 378 | } |
| 379 | #ifdef DEBUG_XEVENTS |
| 380 | if ( i == 10 ) { |
| 381 | printf("Warning: didn't detect mouse warp motion\n"); |
| 382 | } |
| 383 | #endif |
| 384 | } |
| 385 | return(posted); |
| 386 | } |
| 387 | |
| 388 | static int X11_DispatchEvent(_THIS) |
| 389 | { |
| 390 | int posted; |
| 391 | XEvent xevent; |
| 392 | |
| 393 | SDL_memset(&xevent, '\0', sizeof (XEvent)); /* valgrind fix. --ryan. */ |
| 394 | XNextEvent(SDL_Display, &xevent); |
| 395 | |
| 396 | /* Discard KeyRelease and KeyPress events generated by auto-repeat. |
| 397 | We need to do it before passing event to XFilterEvent. Otherwise, |
| 398 | KeyRelease aware IMs are confused... */ |
| 399 | if ( xevent.type == KeyRelease |
| 400 | && X11_KeyRepeat(SDL_Display, &xevent) ) { |
| 401 | return 0; |
| 402 | } |
| 403 | |
| 404 | #ifdef X_HAVE_UTF8_STRING |
| 405 | /* If we are translating with IM, we need to pass all events |
| 406 | to XFilterEvent, and discard those filtered events immediately. */ |
| 407 | if ( SDL_TranslateUNICODE |
| 408 | && SDL_IM != NULL |
| 409 | && XFilterEvent(&xevent, None) ) { |
| 410 | return 0; |
| 411 | } |
| 412 | #endif |
| 413 | |
| 414 | posted = 0; |
| 415 | switch (xevent.type) { |
| 416 | |
| 417 | /* Gaining mouse coverage? */ |
| 418 | case EnterNotify: { |
| 419 | #ifdef DEBUG_XEVENTS |
| 420 | printf("EnterNotify! (%d,%d)\n", xevent.xcrossing.x, xevent.xcrossing.y); |
| 421 | if ( xevent.xcrossing.mode == NotifyGrab ) |
| 422 | printf("Mode: NotifyGrab\n"); |
| 423 | if ( xevent.xcrossing.mode == NotifyUngrab ) |
| 424 | printf("Mode: NotifyUngrab\n"); |
| 425 | #endif |
| 426 | if ( this->input_grab == SDL_GRAB_OFF ) { |
| 427 | posted = SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); |
| 428 | } |
| 429 | posted = SDL_PrivateMouseMotion(0, 0, |
| 430 | xevent.xcrossing.x, |
| 431 | xevent.xcrossing.y); |
| 432 | } |
| 433 | break; |
| 434 | |
| 435 | /* Losing mouse coverage? */ |
| 436 | case LeaveNotify: { |
| 437 | #ifdef DEBUG_XEVENTS |
| 438 | printf("LeaveNotify! (%d,%d)\n", xevent.xcrossing.x, xevent.xcrossing.y); |
| 439 | if ( xevent.xcrossing.mode == NotifyGrab ) |
| 440 | printf("Mode: NotifyGrab\n"); |
| 441 | if ( xevent.xcrossing.mode == NotifyUngrab ) |
| 442 | printf("Mode: NotifyUngrab\n"); |
| 443 | #endif |
| 444 | if ( xevent.xcrossing.detail != NotifyInferior ) { |
| 445 | if ( this->input_grab == SDL_GRAB_OFF ) { |
| 446 | posted = SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS); |
| 447 | } else { |
| 448 | posted = SDL_PrivateMouseMotion(0, 0, |
| 449 | xevent.xcrossing.x, |
| 450 | xevent.xcrossing.y); |
| 451 | } |
| 452 | } |
| 453 | } |
| 454 | break; |
| 455 | |
| 456 | /* Gaining input focus? */ |
| 457 | case FocusIn: { |
| 458 | #ifdef DEBUG_XEVENTS |
| 459 | printf("FocusIn!\n"); |
| 460 | #endif |
| 461 | posted = SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS); |
| 462 | |
| 463 | #ifdef X_HAVE_UTF8_STRING |
| 464 | if ( SDL_IC != NULL ) { |
| 465 | XSetICFocus(SDL_IC); |
| 466 | } |
| 467 | #endif |
| 468 | /* Queue entry into fullscreen mode */ |
| 469 | switch_waiting = 0x01 | SDL_FULLSCREEN; |
| 470 | switch_time = SDL_GetTicks() + 1500; |
| 471 | } |
| 472 | break; |
| 473 | |
| 474 | /* Losing input focus? */ |
| 475 | case FocusOut: { |
| 476 | #ifdef DEBUG_XEVENTS |
| 477 | printf("FocusOut!\n"); |
| 478 | #endif |
| 479 | posted = SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS); |
| 480 | |
| 481 | #ifdef X_HAVE_UTF8_STRING |
| 482 | if ( SDL_IC != NULL ) { |
| 483 | XUnsetICFocus(SDL_IC); |
| 484 | } |
| 485 | #endif |
| 486 | /* Queue leaving fullscreen mode */ |
| 487 | switch_waiting = 0x01; |
| 488 | switch_time = SDL_GetTicks() + 200; |
| 489 | } |
| 490 | break; |
| 491 | |
| 492 | #ifdef X_HAVE_UTF8_STRING |
| 493 | /* Some IM requires MappingNotify to be passed to |
| 494 | XRefreshKeyboardMapping by the app. */ |
| 495 | case MappingNotify: { |
| 496 | XRefreshKeyboardMapping(&xevent.xmapping); |
| 497 | } |
| 498 | break; |
| 499 | #endif /* X_HAVE_UTF8_STRING */ |
| 500 | |
| 501 | /* Generated upon EnterWindow and FocusIn */ |
| 502 | case KeymapNotify: { |
| 503 | #ifdef DEBUG_XEVENTS |
| 504 | printf("KeymapNotify!\n"); |
| 505 | #endif |
| 506 | X11_SetKeyboardState(SDL_Display, xevent.xkeymap.key_vector); |
| 507 | } |
| 508 | break; |
| 509 | |
| 510 | /* Mouse motion? */ |
| 511 | case MotionNotify: { |
| 512 | if ( SDL_VideoSurface ) { |
| 513 | if ( mouse_relative ) { |
| 514 | if ( using_dga & DGA_MOUSE ) { |
| 515 | #ifdef DEBUG_MOTION |
| 516 | printf("DGA motion: %d,%d\n", xevent.xmotion.x_root, xevent.xmotion.y_root); |
| 517 | #endif |
| 518 | posted = SDL_PrivateMouseMotion(0, 1, |
| 519 | xevent.xmotion.x_root, |
| 520 | xevent.xmotion.y_root); |
| 521 | } else { |
| 522 | posted = X11_WarpedMotion(this,&xevent); |
| 523 | } |
| 524 | } else { |
| 525 | #ifdef DEBUG_MOTION |
| 526 | printf("X11 motion: %d,%d\n", xevent.xmotion.x, xevent.xmotion.y); |
| 527 | #endif |
| 528 | posted = SDL_PrivateMouseMotion(0, 0, |
| 529 | xevent.xmotion.x, |
| 530 | xevent.xmotion.y); |
| 531 | } |
| 532 | } |
| 533 | } |
| 534 | break; |
| 535 | |
| 536 | /* Mouse button press? */ |
| 537 | case ButtonPress: { |
| 538 | posted = SDL_PrivateMouseButton(SDL_PRESSED, |
| 539 | xevent.xbutton.button, 0, 0); |
| 540 | } |
| 541 | break; |
| 542 | |
| 543 | /* Mouse button release? */ |
| 544 | case ButtonRelease: { |
| 545 | posted = SDL_PrivateMouseButton(SDL_RELEASED, |
| 546 | xevent.xbutton.button, 0, 0); |
| 547 | } |
| 548 | break; |
| 549 | |
| 550 | /* Key press? */ |
| 551 | case KeyPress: { |
| 552 | SDL_keysym keysym; |
| 553 | KeyCode keycode = xevent.xkey.keycode; |
| 554 | |
| 555 | #ifdef DEBUG_XEVENTS |
| 556 | printf("KeyPress (X11 keycode = 0x%X)\n", xevent.xkey.keycode); |
| 557 | #endif |
| 558 | /* If we're not doing translation, we're done! */ |
| 559 | if ( !SDL_TranslateUNICODE ) { |
| 560 | /* Get the translated SDL virtual keysym and put it on the queue.*/ |
| 561 | keysym.scancode = keycode; |
| 562 | keysym.sym = X11_TranslateKeycode(SDL_Display, keycode); |
| 563 | keysym.mod = KMOD_NONE; |
| 564 | keysym.unicode = 0; |
| 565 | posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym); |
| 566 | break; |
| 567 | } |
| 568 | |
| 569 | /* Look up the translated value for the key event */ |
| 570 | #ifdef X_HAVE_UTF8_STRING |
| 571 | if ( SDL_IC != NULL ) { |
| 572 | Status status; |
| 573 | KeySym xkeysym; |
| 574 | int i; |
| 575 | /* A UTF-8 character can be at most 6 bytes */ |
| 576 | /* ... It's true, but Xutf8LookupString can |
| 577 | return more than one characters. Moreover, |
| 578 | the spec. put no upper bound, so we should |
| 579 | be ready for longer strings. */ |
| 580 | char keybuf[32]; |
| 581 | char *keydata = keybuf; |
| 582 | int count; |
| 583 | Uint16 utf16buf[32]; |
| 584 | Uint16 *utf16data = utf16buf; |
| 585 | int utf16size; |
| 586 | int utf16length; |
| 587 | |
| 588 | count = Xutf8LookupString(SDL_IC, &xevent.xkey, keydata, sizeof(keybuf), &xkeysym, &status); |
| 589 | if (XBufferOverflow == status) { |
| 590 | /* The IM has just generated somewhat long |
| 591 | string. We need a longer buffer in this |
| 592 | case. */ |
| 593 | keydata = SDL_malloc(count); |
| 594 | if ( keydata == NULL ) { |
| 595 | SDL_OutOfMemory(); |
| 596 | break; |
| 597 | } |
| 598 | count = Xutf8LookupString(SDL_IC, &xevent.xkey, keydata, count, &xkeysym, &status); |
| 599 | } |
| 600 | |
| 601 | switch (status) { |
| 602 | |
| 603 | case XBufferOverflow: { |
| 604 | /* Oops! We have allocated the bytes as |
| 605 | requested by Xutf8LookupString, so the |
| 606 | length of the buffer must be |
| 607 | sufficient. This case should never |
| 608 | happen! */ |
| 609 | SDL_SetError("Xutf8LookupString indicated a double buffer overflow!"); |
| 610 | break; |
| 611 | } |
| 612 | |
| 613 | case XLookupChars: |
| 614 | case XLookupBoth: { |
| 615 | if (0 == count) { |
| 616 | break; |
| 617 | } |
| 618 | |
| 619 | /* We got a converted string from IM. Make |
| 620 | sure to deliver all characters to the |
| 621 | application as SDL events. Note that |
| 622 | an SDL event can only carry one UTF-16 |
| 623 | encoding unit, and a surrogate pair is |
| 624 | delivered as two SDL events. I guess |
| 625 | this behaviour is probably _imported_ |
| 626 | from Windows or MacOS. To do so, we need |
| 627 | to convert the UTF-8 data into UTF-16 |
| 628 | data (not UCS4/UTF-32!). We need an |
| 629 | estimate of the number of UTF-16 encoding |
| 630 | units here. The worst case is pure ASCII |
| 631 | string. Assume so. */ |
| 632 | /* In 1.3 SDL may have a text event instead, that |
| 633 | carries the whole UTF-8 string with it. */ |
| 634 | utf16size = count * sizeof(Uint16); |
| 635 | if (utf16size > sizeof(utf16buf)) { |
| 636 | utf16data = (Uint16 *) SDL_malloc(utf16size); |
| 637 | if (utf16data == NULL) { |
| 638 | SDL_OutOfMemory(); |
| 639 | break; |
| 640 | } |
| 641 | } |
| 642 | utf16length = Utf8ToUtf16((Uint8 *)keydata, count, utf16data, utf16size); |
| 643 | if (utf16length < 0) { |
| 644 | /* The keydata contained an invalid byte |
| 645 | sequence. It should be a bug of the IM |
| 646 | or Xlib... */ |
| 647 | SDL_SetError("Oops! Xutf8LookupString returned an invalid UTF-8 sequence!"); |
| 648 | break; |
| 649 | } |
| 650 | |
| 651 | /* Deliver all UTF-16 encoding units. At |
| 652 | this moment, SDL event queue has a |
| 653 | fixed size (128 events), and an SDL |
| 654 | event can hold just one UTF-16 encoding |
| 655 | unit. So, if we receive more than 128 |
| 656 | UTF-16 encoding units from a commit, |
| 657 | exceeded characters will be lost. */ |
| 658 | for (i = 0; i < utf16length - 1; i++) { |
| 659 | keysym.scancode = 0; |
| 660 | keysym.sym = SDLK_UNKNOWN; |
| 661 | keysym.mod = KMOD_NONE; |
| 662 | keysym.unicode = utf16data[i]; |
| 663 | posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym); |
| 664 | } |
| 665 | /* The keysym for the last character carries the |
| 666 | scancode and symbol that corresponds to the X11 |
| 667 | keycode. */ |
| 668 | if (utf16length > 0) { |
| 669 | keysym.scancode = keycode; |
| 670 | keysym.sym = (keycode ? X11_TranslateKeycode(SDL_Display, keycode) : 0); |
| 671 | keysym.mod = KMOD_NONE; |
| 672 | keysym.unicode = utf16data[utf16length - 1]; |
| 673 | posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym); |
| 674 | } |
| 675 | break; |
| 676 | } |
| 677 | |
| 678 | case XLookupKeySym: { |
| 679 | /* I'm not sure whether it is possible that |
| 680 | a zero keycode makes XLookupKeySym |
| 681 | status. What I'm sure is that a |
| 682 | combination of a zero scan code and a non |
| 683 | zero sym makes SDL_PrivateKeyboard |
| 684 | strange state... So, just discard it. |
| 685 | If this doesn't work, I'm receiving bug |
| 686 | reports, and I can know under what |
| 687 | condition this case happens. */ |
| 688 | if (keycode) { |
| 689 | keysym.scancode = keycode; |
| 690 | keysym.sym = X11_TranslateKeycode(SDL_Display, keycode); |
| 691 | keysym.mod = KMOD_NONE; |
| 692 | keysym.unicode = 0; |
| 693 | posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym); |
| 694 | } |
| 695 | break; |
| 696 | } |
| 697 | |
| 698 | case XLookupNone: { |
| 699 | /* IM has eaten the event. */ |
| 700 | break; |
| 701 | } |
| 702 | |
| 703 | default: |
| 704 | /* An unknown status from Xutf8LookupString. */ |
| 705 | SDL_SetError("Oops! Xutf8LookupStringreturned an unknown status"); |
| 706 | } |
| 707 | |
| 708 | /* Release dynamic buffers if allocated. */ |
| 709 | if (keydata != NULL && keybuf != keydata) { |
| 710 | SDL_free(keydata); |
| 711 | } |
| 712 | if (utf16data != NULL && utf16buf != utf16data) { |
| 713 | SDL_free(utf16data); |
| 714 | } |
| 715 | } |
| 716 | else |
| 717 | #endif |
| 718 | { |
| 719 | static XComposeStatus state; |
| 720 | char keybuf[32]; |
| 721 | |
| 722 | keysym.scancode = keycode; |
| 723 | keysym.sym = X11_TranslateKeycode(SDL_Display, keycode); |
| 724 | keysym.mod = KMOD_NONE; |
| 725 | keysym.unicode = 0; |
| 726 | if ( XLookupString(&xevent.xkey, |
| 727 | keybuf, sizeof(keybuf), |
| 728 | NULL, &state) ) { |
| 729 | /* |
| 730 | * FIXME: XLookupString() may yield more than one |
| 731 | * character, so we need a mechanism to allow for |
| 732 | * this (perhaps null keypress events with a |
| 733 | * unicode value) |
| 734 | */ |
| 735 | keysym.unicode = (Uint8)keybuf[0]; |
| 736 | } |
| 737 | |
| 738 | posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym); |
| 739 | } |
| 740 | } |
| 741 | break; |
| 742 | |
| 743 | /* Key release? */ |
| 744 | case KeyRelease: { |
| 745 | SDL_keysym keysym; |
| 746 | KeyCode keycode = xevent.xkey.keycode; |
| 747 | |
| 748 | if (keycode == 0) { |
| 749 | /* There should be no KeyRelease for keycode == 0, |
| 750 | since it is a notification from IM but a real |
| 751 | keystroke. */ |
| 752 | /* We need to emit some diagnostic message here. */ |
| 753 | break; |
| 754 | } |
| 755 | |
| 756 | #ifdef DEBUG_XEVENTS |
| 757 | printf("KeyRelease (X11 keycode = 0x%X)\n", xevent.xkey.keycode); |
| 758 | #endif |
| 759 | |
| 760 | /* Get the translated SDL virtual keysym */ |
| 761 | keysym.scancode = keycode; |
| 762 | keysym.sym = X11_TranslateKeycode(SDL_Display, keycode); |
| 763 | keysym.mod = KMOD_NONE; |
| 764 | keysym.unicode = 0; |
| 765 | |
| 766 | posted = SDL_PrivateKeyboard(SDL_RELEASED, &keysym); |
| 767 | } |
| 768 | break; |
| 769 | |
| 770 | /* Have we been iconified? */ |
| 771 | case UnmapNotify: { |
| 772 | #ifdef DEBUG_XEVENTS |
| 773 | printf("UnmapNotify!\n"); |
| 774 | #endif |
| 775 | /* If we're active, make ourselves inactive */ |
| 776 | if ( SDL_GetAppState() & SDL_APPACTIVE ) { |
| 777 | /* Swap out the gamma before we go inactive */ |
| 778 | X11_SwapVidModeGamma(this); |
| 779 | |
| 780 | /* Send an internal deactivate event */ |
| 781 | posted = SDL_PrivateAppActive(0, |
| 782 | SDL_APPACTIVE|SDL_APPINPUTFOCUS); |
| 783 | } |
| 784 | } |
| 785 | break; |
| 786 | |
| 787 | /* Have we been restored? */ |
| 788 | case MapNotify: { |
| 789 | #ifdef DEBUG_XEVENTS |
| 790 | printf("MapNotify!\n"); |
| 791 | #endif |
| 792 | /* If we're not active, make ourselves active */ |
| 793 | if ( !(SDL_GetAppState() & SDL_APPACTIVE) ) { |
| 794 | /* Send an internal activate event */ |
| 795 | posted = SDL_PrivateAppActive(1, SDL_APPACTIVE); |
| 796 | |
| 797 | /* Now that we're active, swap the gamma back */ |
| 798 | X11_SwapVidModeGamma(this); |
| 799 | } |
| 800 | |
| 801 | if ( SDL_VideoSurface && |
| 802 | (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) { |
| 803 | X11_EnterFullScreen(this); |
| 804 | } else { |
| 805 | X11_GrabInputNoLock(this, this->input_grab); |
| 806 | } |
| 807 | X11_CheckMouseModeNoLock(this); |
| 808 | |
| 809 | if ( SDL_VideoSurface ) { |
| 810 | X11_RefreshDisplay(this); |
| 811 | } |
| 812 | } |
| 813 | break; |
| 814 | |
| 815 | /* Have we been resized or moved? */ |
| 816 | case ConfigureNotify: { |
| 817 | #ifdef DEBUG_XEVENTS |
| 818 | printf("ConfigureNotify! (resize: %dx%d)\n", xevent.xconfigure.width, xevent.xconfigure.height); |
| 819 | #endif |
| 820 | if ( SDL_VideoSurface ) { |
| 821 | if ((xevent.xconfigure.width != SDL_VideoSurface->w) || |
| 822 | (xevent.xconfigure.height != SDL_VideoSurface->h)) { |
| 823 | /* FIXME: Find a better fix for the bug with KDE 1.2 */ |
| 824 | if ( ! ((xevent.xconfigure.width == 32) && |
| 825 | (xevent.xconfigure.height == 32)) ) { |
| 826 | SDL_PrivateResize(xevent.xconfigure.width, |
| 827 | xevent.xconfigure.height); |
| 828 | } |
| 829 | } else { |
| 830 | /* OpenGL windows need to know about the change */ |
| 831 | if ( SDL_VideoSurface->flags & SDL_OPENGL ) { |
| 832 | SDL_PrivateExpose(); |
| 833 | } |
| 834 | } |
| 835 | } |
| 836 | } |
| 837 | break; |
| 838 | |
| 839 | /* Have we been requested to quit (or another client message?) */ |
| 840 | case ClientMessage: { |
| 841 | if ( (xevent.xclient.format == 32) && |
| 842 | (xevent.xclient.data.l[0] == WM_DELETE_WINDOW) ) |
| 843 | { |
| 844 | posted = SDL_PrivateQuit(); |
| 845 | } else |
| 846 | if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) { |
| 847 | SDL_SysWMmsg wmmsg; |
| 848 | |
| 849 | SDL_VERSION(&wmmsg.version); |
| 850 | wmmsg.subsystem = SDL_SYSWM_X11; |
| 851 | wmmsg.event.xevent = xevent; |
| 852 | posted = SDL_PrivateSysWMEvent(&wmmsg); |
| 853 | } |
| 854 | } |
| 855 | break; |
| 856 | |
| 857 | /* Do we need to refresh ourselves? */ |
| 858 | case Expose: { |
| 859 | #ifdef DEBUG_XEVENTS |
| 860 | printf("Expose (count = %d)\n", xevent.xexpose.count); |
| 861 | #endif |
| 862 | if ( SDL_VideoSurface && (xevent.xexpose.count == 0) ) { |
| 863 | X11_RefreshDisplay(this); |
| 864 | } |
| 865 | } |
| 866 | break; |
| 867 | |
| 868 | default: { |
| 869 | #ifdef DEBUG_XEVENTS |
| 870 | printf("Unhandled event %d\n", xevent.type); |
| 871 | #endif |
| 872 | /* Only post the event if we're watching for it */ |
| 873 | if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) { |
| 874 | SDL_SysWMmsg wmmsg; |
| 875 | |
| 876 | SDL_VERSION(&wmmsg.version); |
| 877 | wmmsg.subsystem = SDL_SYSWM_X11; |
| 878 | wmmsg.event.xevent = xevent; |
| 879 | posted = SDL_PrivateSysWMEvent(&wmmsg); |
| 880 | } |
| 881 | } |
| 882 | break; |
| 883 | } |
| 884 | return(posted); |
| 885 | } |
| 886 | |
| 887 | /* Ack! XPending() actually performs a blocking read if no events available */ |
| 888 | int X11_Pending(Display *display) |
| 889 | { |
| 890 | /* Flush the display connection and look to see if events are queued */ |
| 891 | XFlush(display); |
| 892 | if ( XEventsQueued(display, QueuedAlready) ) { |
| 893 | return(1); |
| 894 | } |
| 895 | |
| 896 | /* More drastic measures are required -- see if X is ready to talk */ |
| 897 | { |
| 898 | static struct timeval zero_time; /* static == 0 */ |
| 899 | int x11_fd; |
| 900 | fd_set fdset; |
| 901 | |
| 902 | x11_fd = ConnectionNumber(display); |
| 903 | FD_ZERO(&fdset); |
| 904 | FD_SET(x11_fd, &fdset); |
| 905 | if ( select(x11_fd+1, &fdset, NULL, NULL, &zero_time) == 1 ) { |
| 906 | return(XPending(display)); |
| 907 | } |
| 908 | } |
| 909 | |
| 910 | /* Oh well, nothing is ready .. */ |
| 911 | return(0); |
| 912 | } |
| 913 | |
| 914 | void X11_PumpEvents(_THIS) |
| 915 | { |
| 916 | int pending; |
| 917 | |
| 918 | /* Update activity every five seconds to prevent screensaver. --ryan. */ |
| 919 | if (!allow_screensaver) { |
| 920 | static Uint32 screensaverTicks; |
| 921 | Uint32 nowTicks = SDL_GetTicks(); |
| 922 | if ((nowTicks - screensaverTicks) > 5000) { |
| 923 | XResetScreenSaver(SDL_Display); |
| 924 | screensaverTicks = nowTicks; |
| 925 | } |
| 926 | } |
| 927 | |
| 928 | /* Keep processing pending events */ |
| 929 | pending = 0; |
| 930 | while ( X11_Pending(SDL_Display) ) { |
| 931 | X11_DispatchEvent(this); |
| 932 | ++pending; |
| 933 | } |
| 934 | if ( switch_waiting ) { |
| 935 | Uint32 now; |
| 936 | |
| 937 | now = SDL_GetTicks(); |
| 938 | if ( pending || !SDL_VideoSurface ) { |
| 939 | /* Try again later... */ |
| 940 | if ( switch_waiting & SDL_FULLSCREEN ) { |
| 941 | switch_time = now + 1500; |
| 942 | } else { |
| 943 | switch_time = now + 200; |
| 944 | } |
| 945 | } else if ( (int)(switch_time-now) <= 0 ) { |
| 946 | Uint32 go_fullscreen; |
| 947 | |
| 948 | go_fullscreen = switch_waiting & SDL_FULLSCREEN; |
| 949 | switch_waiting = 0; |
| 950 | if ( SDL_VideoSurface->flags & SDL_FULLSCREEN ) { |
| 951 | if ( go_fullscreen ) { |
| 952 | X11_EnterFullScreen(this); |
| 953 | } else { |
| 954 | X11_LeaveFullScreen(this); |
| 955 | } |
| 956 | } |
| 957 | /* Handle focus in/out when grabbed */ |
| 958 | if ( go_fullscreen ) { |
| 959 | X11_GrabInputNoLock(this, this->input_grab); |
| 960 | } else { |
| 961 | X11_GrabInputNoLock(this, SDL_GRAB_OFF); |
| 962 | } |
| 963 | X11_CheckMouseModeNoLock(this); |
| 964 | } |
| 965 | } |
| 966 | } |
| 967 | |
| 968 | void X11_InitKeymap(void) |
| 969 | { |
| 970 | int i; |
| 971 | |
| 972 | /* Odd keys used in international keyboards */ |
| 973 | for ( i=0; i<SDL_arraysize(ODD_keymap); ++i ) |
| 974 | ODD_keymap[i] = SDLK_UNKNOWN; |
| 975 | |
| 976 | /* Some of these might be mappable to an existing SDLK_ code */ |
| 977 | ODD_keymap[XK_dead_grave&0xFF] = SDLK_COMPOSE; |
| 978 | ODD_keymap[XK_dead_acute&0xFF] = SDLK_COMPOSE; |
| 979 | ODD_keymap[XK_dead_tilde&0xFF] = SDLK_COMPOSE; |
| 980 | ODD_keymap[XK_dead_macron&0xFF] = SDLK_COMPOSE; |
| 981 | ODD_keymap[XK_dead_breve&0xFF] = SDLK_COMPOSE; |
| 982 | ODD_keymap[XK_dead_abovedot&0xFF] = SDLK_COMPOSE; |
| 983 | ODD_keymap[XK_dead_diaeresis&0xFF] = SDLK_COMPOSE; |
| 984 | ODD_keymap[XK_dead_abovering&0xFF] = SDLK_COMPOSE; |
| 985 | ODD_keymap[XK_dead_doubleacute&0xFF] = SDLK_COMPOSE; |
| 986 | ODD_keymap[XK_dead_caron&0xFF] = SDLK_COMPOSE; |
| 987 | ODD_keymap[XK_dead_cedilla&0xFF] = SDLK_COMPOSE; |
| 988 | ODD_keymap[XK_dead_ogonek&0xFF] = SDLK_COMPOSE; |
| 989 | ODD_keymap[XK_dead_iota&0xFF] = SDLK_COMPOSE; |
| 990 | ODD_keymap[XK_dead_voiced_sound&0xFF] = SDLK_COMPOSE; |
| 991 | ODD_keymap[XK_dead_semivoiced_sound&0xFF] = SDLK_COMPOSE; |
| 992 | ODD_keymap[XK_dead_belowdot&0xFF] = SDLK_COMPOSE; |
| 993 | #ifdef XK_dead_hook |
| 994 | ODD_keymap[XK_dead_hook&0xFF] = SDLK_COMPOSE; |
| 995 | #endif |
| 996 | #ifdef XK_dead_horn |
| 997 | ODD_keymap[XK_dead_horn&0xFF] = SDLK_COMPOSE; |
| 998 | #endif |
| 999 | |
| 1000 | #ifdef XK_dead_circumflex |
| 1001 | /* These X keysyms have 0xFE as the high byte */ |
| 1002 | ODD_keymap[XK_dead_circumflex&0xFF] = SDLK_CARET; |
| 1003 | #endif |
| 1004 | #ifdef XK_ISO_Level3_Shift |
| 1005 | ODD_keymap[XK_ISO_Level3_Shift&0xFF] = SDLK_MODE; /* "Alt Gr" key */ |
| 1006 | #endif |
| 1007 | |
| 1008 | /* Map the miscellaneous keys */ |
| 1009 | for ( i=0; i<SDL_arraysize(MISC_keymap); ++i ) |
| 1010 | MISC_keymap[i] = SDLK_UNKNOWN; |
| 1011 | |
| 1012 | /* These X keysyms have 0xFF as the high byte */ |
| 1013 | MISC_keymap[XK_BackSpace&0xFF] = SDLK_BACKSPACE; |
| 1014 | MISC_keymap[XK_Tab&0xFF] = SDLK_TAB; |
| 1015 | MISC_keymap[XK_Clear&0xFF] = SDLK_CLEAR; |
| 1016 | MISC_keymap[XK_Return&0xFF] = SDLK_RETURN; |
| 1017 | MISC_keymap[XK_Pause&0xFF] = SDLK_PAUSE; |
| 1018 | MISC_keymap[XK_Escape&0xFF] = SDLK_ESCAPE; |
| 1019 | MISC_keymap[XK_Delete&0xFF] = SDLK_DELETE; |
| 1020 | |
| 1021 | MISC_keymap[XK_KP_0&0xFF] = SDLK_KP0; /* Keypad 0-9 */ |
| 1022 | MISC_keymap[XK_KP_1&0xFF] = SDLK_KP1; |
| 1023 | MISC_keymap[XK_KP_2&0xFF] = SDLK_KP2; |
| 1024 | MISC_keymap[XK_KP_3&0xFF] = SDLK_KP3; |
| 1025 | MISC_keymap[XK_KP_4&0xFF] = SDLK_KP4; |
| 1026 | MISC_keymap[XK_KP_5&0xFF] = SDLK_KP5; |
| 1027 | MISC_keymap[XK_KP_6&0xFF] = SDLK_KP6; |
| 1028 | MISC_keymap[XK_KP_7&0xFF] = SDLK_KP7; |
| 1029 | MISC_keymap[XK_KP_8&0xFF] = SDLK_KP8; |
| 1030 | MISC_keymap[XK_KP_9&0xFF] = SDLK_KP9; |
| 1031 | MISC_keymap[XK_KP_Insert&0xFF] = SDLK_KP0; |
| 1032 | MISC_keymap[XK_KP_End&0xFF] = SDLK_KP1; |
| 1033 | MISC_keymap[XK_KP_Down&0xFF] = SDLK_KP2; |
| 1034 | MISC_keymap[XK_KP_Page_Down&0xFF] = SDLK_KP3; |
| 1035 | MISC_keymap[XK_KP_Left&0xFF] = SDLK_KP4; |
| 1036 | MISC_keymap[XK_KP_Begin&0xFF] = SDLK_KP5; |
| 1037 | MISC_keymap[XK_KP_Right&0xFF] = SDLK_KP6; |
| 1038 | MISC_keymap[XK_KP_Home&0xFF] = SDLK_KP7; |
| 1039 | MISC_keymap[XK_KP_Up&0xFF] = SDLK_KP8; |
| 1040 | MISC_keymap[XK_KP_Page_Up&0xFF] = SDLK_KP9; |
| 1041 | MISC_keymap[XK_KP_Delete&0xFF] = SDLK_KP_PERIOD; |
| 1042 | MISC_keymap[XK_KP_Decimal&0xFF] = SDLK_KP_PERIOD; |
| 1043 | MISC_keymap[XK_KP_Divide&0xFF] = SDLK_KP_DIVIDE; |
| 1044 | MISC_keymap[XK_KP_Multiply&0xFF] = SDLK_KP_MULTIPLY; |
| 1045 | MISC_keymap[XK_KP_Subtract&0xFF] = SDLK_KP_MINUS; |
| 1046 | MISC_keymap[XK_KP_Add&0xFF] = SDLK_KP_PLUS; |
| 1047 | MISC_keymap[XK_KP_Enter&0xFF] = SDLK_KP_ENTER; |
| 1048 | MISC_keymap[XK_KP_Equal&0xFF] = SDLK_KP_EQUALS; |
| 1049 | |
| 1050 | MISC_keymap[XK_Up&0xFF] = SDLK_UP; |
| 1051 | MISC_keymap[XK_Down&0xFF] = SDLK_DOWN; |
| 1052 | MISC_keymap[XK_Right&0xFF] = SDLK_RIGHT; |
| 1053 | MISC_keymap[XK_Left&0xFF] = SDLK_LEFT; |
| 1054 | MISC_keymap[XK_Insert&0xFF] = SDLK_INSERT; |
| 1055 | MISC_keymap[XK_Home&0xFF] = SDLK_HOME; |
| 1056 | MISC_keymap[XK_End&0xFF] = SDLK_END; |
| 1057 | MISC_keymap[XK_Page_Up&0xFF] = SDLK_PAGEUP; |
| 1058 | MISC_keymap[XK_Page_Down&0xFF] = SDLK_PAGEDOWN; |
| 1059 | |
| 1060 | MISC_keymap[XK_F1&0xFF] = SDLK_F1; |
| 1061 | MISC_keymap[XK_F2&0xFF] = SDLK_F2; |
| 1062 | MISC_keymap[XK_F3&0xFF] = SDLK_F3; |
| 1063 | MISC_keymap[XK_F4&0xFF] = SDLK_F4; |
| 1064 | MISC_keymap[XK_F5&0xFF] = SDLK_F5; |
| 1065 | MISC_keymap[XK_F6&0xFF] = SDLK_F6; |
| 1066 | MISC_keymap[XK_F7&0xFF] = SDLK_F7; |
| 1067 | MISC_keymap[XK_F8&0xFF] = SDLK_F8; |
| 1068 | MISC_keymap[XK_F9&0xFF] = SDLK_F9; |
| 1069 | MISC_keymap[XK_F10&0xFF] = SDLK_F10; |
| 1070 | MISC_keymap[XK_F11&0xFF] = SDLK_F11; |
| 1071 | MISC_keymap[XK_F12&0xFF] = SDLK_F12; |
| 1072 | MISC_keymap[XK_F13&0xFF] = SDLK_F13; |
| 1073 | MISC_keymap[XK_F14&0xFF] = SDLK_F14; |
| 1074 | MISC_keymap[XK_F15&0xFF] = SDLK_F15; |
| 1075 | |
| 1076 | MISC_keymap[XK_Num_Lock&0xFF] = SDLK_NUMLOCK; |
| 1077 | MISC_keymap[XK_Caps_Lock&0xFF] = SDLK_CAPSLOCK; |
| 1078 | MISC_keymap[XK_Scroll_Lock&0xFF] = SDLK_SCROLLOCK; |
| 1079 | MISC_keymap[XK_Shift_R&0xFF] = SDLK_RSHIFT; |
| 1080 | MISC_keymap[XK_Shift_L&0xFF] = SDLK_LSHIFT; |
| 1081 | MISC_keymap[XK_Control_R&0xFF] = SDLK_RCTRL; |
| 1082 | MISC_keymap[XK_Control_L&0xFF] = SDLK_LCTRL; |
| 1083 | MISC_keymap[XK_Alt_R&0xFF] = SDLK_RALT; |
| 1084 | MISC_keymap[XK_Alt_L&0xFF] = SDLK_LALT; |
| 1085 | MISC_keymap[XK_Meta_R&0xFF] = SDLK_RMETA; |
| 1086 | MISC_keymap[XK_Meta_L&0xFF] = SDLK_LMETA; |
| 1087 | MISC_keymap[XK_Super_L&0xFF] = SDLK_LSUPER; /* Left "Windows" */ |
| 1088 | MISC_keymap[XK_Super_R&0xFF] = SDLK_RSUPER; /* Right "Windows */ |
| 1089 | MISC_keymap[XK_Mode_switch&0xFF] = SDLK_MODE; /* "Alt Gr" key */ |
| 1090 | MISC_keymap[XK_Multi_key&0xFF] = SDLK_COMPOSE; /* Multi-key compose */ |
| 1091 | |
| 1092 | MISC_keymap[XK_Help&0xFF] = SDLK_HELP; |
| 1093 | MISC_keymap[XK_Print&0xFF] = SDLK_PRINT; |
| 1094 | MISC_keymap[XK_Sys_Req&0xFF] = SDLK_SYSREQ; |
| 1095 | MISC_keymap[XK_Break&0xFF] = SDLK_BREAK; |
| 1096 | MISC_keymap[XK_Menu&0xFF] = SDLK_MENU; |
| 1097 | MISC_keymap[XK_Hyper_R&0xFF] = SDLK_MENU; /* Windows "Menu" key */ |
| 1098 | } |
| 1099 | |
| 1100 | /* Get the translated SDL virtual keysym */ |
| 1101 | SDLKey X11_TranslateKeycode(Display *display, KeyCode kc) |
| 1102 | { |
| 1103 | KeySym xsym; |
| 1104 | SDLKey key; |
| 1105 | |
| 1106 | xsym = XKeycodeToKeysym(display, kc, 0); |
| 1107 | #ifdef DEBUG_KEYS |
| 1108 | fprintf(stderr, "Translating key code %d -> 0x%.4x\n", kc, xsym); |
| 1109 | #endif |
| 1110 | key = SDLK_UNKNOWN; |
| 1111 | if ( xsym ) { |
| 1112 | switch (xsym>>8) { |
| 1113 | case 0x1005FF: |
| 1114 | #ifdef SunXK_F36 |
| 1115 | if ( xsym == SunXK_F36 ) |
| 1116 | key = SDLK_F11; |
| 1117 | #endif |
| 1118 | #ifdef SunXK_F37 |
| 1119 | if ( xsym == SunXK_F37 ) |
| 1120 | key = SDLK_F12; |
| 1121 | #endif |
| 1122 | break; |
| 1123 | case 0x00: /* Latin 1 */ |
| 1124 | key = (SDLKey)(xsym & 0xFF); |
| 1125 | break; |
| 1126 | case 0x01: /* Latin 2 */ |
| 1127 | case 0x02: /* Latin 3 */ |
| 1128 | case 0x03: /* Latin 4 */ |
| 1129 | case 0x04: /* Katakana */ |
| 1130 | case 0x05: /* Arabic */ |
| 1131 | case 0x06: /* Cyrillic */ |
| 1132 | case 0x07: /* Greek */ |
| 1133 | case 0x08: /* Technical */ |
| 1134 | case 0x0A: /* Publishing */ |
| 1135 | case 0x0C: /* Hebrew */ |
| 1136 | case 0x0D: /* Thai */ |
| 1137 | /* These are wrong, but it's better than nothing */ |
| 1138 | key = (SDLKey)(xsym & 0xFF); |
| 1139 | break; |
| 1140 | case 0xFE: |
| 1141 | key = ODD_keymap[xsym&0xFF]; |
| 1142 | break; |
| 1143 | case 0xFF: |
| 1144 | key = MISC_keymap[xsym&0xFF]; |
| 1145 | break; |
| 1146 | default: |
| 1147 | /* |
| 1148 | fprintf(stderr, "X11: Unhandled xsym, sym = 0x%04x\n", |
| 1149 | (unsigned int)xsym); |
| 1150 | */ |
| 1151 | break; |
| 1152 | } |
| 1153 | } else { |
| 1154 | /* X11 doesn't know how to translate the key! */ |
| 1155 | switch (kc) { |
| 1156 | /* Caution: |
| 1157 | These keycodes are from the Microsoft Keyboard |
| 1158 | */ |
| 1159 | case 115: |
| 1160 | key = SDLK_LSUPER; |
| 1161 | break; |
| 1162 | case 116: |
| 1163 | key = SDLK_RSUPER; |
| 1164 | break; |
| 1165 | case 117: |
| 1166 | key = SDLK_MENU; |
| 1167 | break; |
| 1168 | default: |
| 1169 | /* |
| 1170 | * no point in an error message; happens for |
| 1171 | * several keys when we get a keymap notify |
| 1172 | */ |
| 1173 | break; |
| 1174 | } |
| 1175 | } |
| 1176 | return key; |
| 1177 | } |
| 1178 | |
| 1179 | /* X11 modifier masks for various keys */ |
| 1180 | static unsigned meta_l_mask, meta_r_mask, alt_l_mask, alt_r_mask; |
| 1181 | static unsigned num_mask, mode_switch_mask; |
| 1182 | |
| 1183 | static void get_modifier_masks(Display *display) |
| 1184 | { |
| 1185 | static unsigned got_masks; |
| 1186 | int i, j; |
| 1187 | XModifierKeymap *xmods; |
| 1188 | unsigned n; |
| 1189 | |
| 1190 | if(got_masks) |
| 1191 | return; |
| 1192 | |
| 1193 | xmods = XGetModifierMapping(display); |
| 1194 | n = xmods->max_keypermod; |
| 1195 | for(i = 3; i < 8; i++) { |
| 1196 | for(j = 0; j < n; j++) { |
| 1197 | KeyCode kc = xmods->modifiermap[i * n + j]; |
| 1198 | KeySym ks = XKeycodeToKeysym(display, kc, 0); |
| 1199 | unsigned mask = 1 << i; |
| 1200 | switch(ks) { |
| 1201 | case XK_Num_Lock: |
| 1202 | num_mask = mask; break; |
| 1203 | case XK_Alt_L: |
| 1204 | alt_l_mask = mask; break; |
| 1205 | case XK_Alt_R: |
| 1206 | alt_r_mask = mask; break; |
| 1207 | case XK_Meta_L: |
| 1208 | meta_l_mask = mask; break; |
| 1209 | case XK_Meta_R: |
| 1210 | meta_r_mask = mask; break; |
| 1211 | case XK_Mode_switch: |
| 1212 | mode_switch_mask = mask; break; |
| 1213 | } |
| 1214 | } |
| 1215 | } |
| 1216 | XFreeModifiermap(xmods); |
| 1217 | got_masks = 1; |
| 1218 | } |
| 1219 | |
| 1220 | |
| 1221 | /* |
| 1222 | * This function is semi-official; it is not officially exported and should |
| 1223 | * not be considered part of the SDL API, but may be used by client code |
| 1224 | * that *really* needs it (including legacy code). |
| 1225 | * It is slow, though, and should be avoided if possible. |
| 1226 | * |
| 1227 | * Note that it isn't completely accurate either; in particular, multi-key |
| 1228 | * sequences (dead accents, compose key sequences) will not work since the |
| 1229 | * state has been irrevocably lost. |
| 1230 | */ |
| 1231 | Uint16 X11_KeyToUnicode(SDLKey keysym, SDLMod modifiers) |
| 1232 | { |
| 1233 | struct SDL_VideoDevice *this = current_video; |
| 1234 | char keybuf[32]; |
| 1235 | int i; |
| 1236 | KeySym xsym = 0; |
| 1237 | XKeyEvent xkey; |
| 1238 | Uint16 unicode; |
| 1239 | |
| 1240 | if ( !this || !SDL_Display ) { |
| 1241 | return 0; |
| 1242 | } |
| 1243 | |
| 1244 | SDL_memset(&xkey, 0, sizeof(xkey)); |
| 1245 | xkey.display = SDL_Display; |
| 1246 | |
| 1247 | xsym = keysym; /* last resort if not found */ |
| 1248 | for (i = 0; i < 256; ++i) { |
| 1249 | if ( MISC_keymap[i] == keysym ) { |
| 1250 | xsym = 0xFF00 | i; |
| 1251 | break; |
| 1252 | } else if ( ODD_keymap[i] == keysym ) { |
| 1253 | xsym = 0xFE00 | i; |
| 1254 | break; |
| 1255 | } |
| 1256 | } |
| 1257 | |
| 1258 | xkey.keycode = XKeysymToKeycode(xkey.display, xsym); |
| 1259 | |
| 1260 | get_modifier_masks(SDL_Display); |
| 1261 | if(modifiers & KMOD_SHIFT) |
| 1262 | xkey.state |= ShiftMask; |
| 1263 | if(modifiers & KMOD_CAPS) |
| 1264 | xkey.state |= LockMask; |
| 1265 | if(modifiers & KMOD_CTRL) |
| 1266 | xkey.state |= ControlMask; |
| 1267 | if(modifiers & KMOD_MODE) |
| 1268 | xkey.state |= mode_switch_mask; |
| 1269 | if(modifiers & KMOD_LALT) |
| 1270 | xkey.state |= alt_l_mask; |
| 1271 | if(modifiers & KMOD_RALT) |
| 1272 | xkey.state |= alt_r_mask; |
| 1273 | if(modifiers & KMOD_LMETA) |
| 1274 | xkey.state |= meta_l_mask; |
| 1275 | if(modifiers & KMOD_RMETA) |
| 1276 | xkey.state |= meta_r_mask; |
| 1277 | if(modifiers & KMOD_NUM) |
| 1278 | xkey.state |= num_mask; |
| 1279 | |
| 1280 | unicode = 0; |
| 1281 | if ( XLookupString(&xkey, keybuf, sizeof(keybuf), NULL, NULL) ) |
| 1282 | unicode = (unsigned char)keybuf[0]; |
| 1283 | return(unicode); |
| 1284 | } |
| 1285 | |
| 1286 | |
| 1287 | /* |
| 1288 | * Called when focus is regained, to read the keyboard state and generate |
| 1289 | * synthetic keypress/release events. |
| 1290 | * key_vec is a bit vector of keycodes (256 bits) |
| 1291 | */ |
| 1292 | void X11_SetKeyboardState(Display *display, const char *key_vec) |
| 1293 | { |
| 1294 | char keys_return[32]; |
| 1295 | int i; |
| 1296 | Uint8 *kstate = SDL_GetKeyState(NULL); |
| 1297 | SDLMod modstate; |
| 1298 | Window junk_window; |
| 1299 | int x, y; |
| 1300 | unsigned int mask; |
| 1301 | |
| 1302 | /* The first time the window is mapped, we initialize key state */ |
| 1303 | if ( ! key_vec ) { |
| 1304 | XQueryKeymap(display, keys_return); |
| 1305 | key_vec = keys_return; |
| 1306 | } |
| 1307 | |
| 1308 | /* Get the keyboard modifier state */ |
| 1309 | modstate = 0; |
| 1310 | get_modifier_masks(display); |
| 1311 | if ( XQueryPointer(display, DefaultRootWindow(display), |
| 1312 | &junk_window, &junk_window, &x, &y, &x, &y, &mask) ) { |
| 1313 | if ( mask & LockMask ) { |
| 1314 | modstate |= KMOD_CAPS; |
| 1315 | } |
| 1316 | if ( mask & mode_switch_mask ) { |
| 1317 | modstate |= KMOD_MODE; |
| 1318 | } |
| 1319 | if ( mask & num_mask ) { |
| 1320 | modstate |= KMOD_NUM; |
| 1321 | } |
| 1322 | } |
| 1323 | |
| 1324 | /* Zero the new keyboard state and generate it */ |
| 1325 | SDL_memset(kstate, 0, SDLK_LAST); |
| 1326 | /* |
| 1327 | * An obvious optimisation is to check entire longwords at a time in |
| 1328 | * both loops, but we can't be sure the arrays are aligned so it's not |
| 1329 | * worth the extra complexity |
| 1330 | */ |
| 1331 | for ( i = 0; i < 32; i++ ) { |
| 1332 | int j; |
| 1333 | if ( !key_vec[i] ) |
| 1334 | continue; |
| 1335 | for ( j = 0; j < 8; j++ ) { |
| 1336 | if ( key_vec[i] & (1 << j) ) { |
| 1337 | SDLKey key; |
| 1338 | KeyCode kc = (i << 3 | j); |
| 1339 | key = X11_TranslateKeycode(display, kc); |
| 1340 | if ( key == SDLK_UNKNOWN ) { |
| 1341 | continue; |
| 1342 | } |
| 1343 | kstate[key] = SDL_PRESSED; |
| 1344 | switch (key) { |
| 1345 | case SDLK_LSHIFT: |
| 1346 | modstate |= KMOD_LSHIFT; |
| 1347 | break; |
| 1348 | case SDLK_RSHIFT: |
| 1349 | modstate |= KMOD_RSHIFT; |
| 1350 | break; |
| 1351 | case SDLK_LCTRL: |
| 1352 | modstate |= KMOD_LCTRL; |
| 1353 | break; |
| 1354 | case SDLK_RCTRL: |
| 1355 | modstate |= KMOD_RCTRL; |
| 1356 | break; |
| 1357 | case SDLK_LALT: |
| 1358 | modstate |= KMOD_LALT; |
| 1359 | break; |
| 1360 | case SDLK_RALT: |
| 1361 | modstate |= KMOD_RALT; |
| 1362 | break; |
| 1363 | case SDLK_LMETA: |
| 1364 | modstate |= KMOD_LMETA; |
| 1365 | break; |
| 1366 | case SDLK_RMETA: |
| 1367 | modstate |= KMOD_RMETA; |
| 1368 | break; |
| 1369 | default: |
| 1370 | break; |
| 1371 | } |
| 1372 | } |
| 1373 | } |
| 1374 | } |
| 1375 | |
| 1376 | /* Hack - set toggle key state */ |
| 1377 | if ( modstate & KMOD_CAPS ) { |
| 1378 | kstate[SDLK_CAPSLOCK] = SDL_PRESSED; |
| 1379 | } else { |
| 1380 | kstate[SDLK_CAPSLOCK] = SDL_RELEASED; |
| 1381 | } |
| 1382 | if ( modstate & KMOD_NUM ) { |
| 1383 | kstate[SDLK_NUMLOCK] = SDL_PRESSED; |
| 1384 | } else { |
| 1385 | kstate[SDLK_NUMLOCK] = SDL_RELEASED; |
| 1386 | } |
| 1387 | |
| 1388 | /* Set the final modifier state */ |
| 1389 | SDL_SetModState(modstate); |
| 1390 | } |
| 1391 | |
| 1392 | void X11_InitOSKeymap(_THIS) |
| 1393 | { |
| 1394 | X11_InitKeymap(); |
| 1395 | } |
| 1396 | |