| 1 | /* |
| 2 | * Copyright © 2006 Keith Packard |
| 3 | * Copyright © 2008 Peter Hutterer |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the "Software"), |
| 7 | * to deal in the Software without restriction, including without limitation |
| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
| 10 | * Software is furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice (including the next |
| 13 | * paragraph) shall be included in all copies or substantial portions of the |
| 14 | * Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WAXIANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WAXIANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 22 | * DEALINGS IN THE SOFTWARE. |
| 23 | * |
| 24 | */ |
| 25 | |
| 26 | /* This code is a modified version of randr/rrproperty.c */ |
| 27 | |
| 28 | #ifdef HAVE_DIX_CONFIG_H |
| 29 | #include <dix-config.h> |
| 30 | #endif |
| 31 | |
| 32 | #include "dix.h" |
| 33 | #include "inputstr.h" |
| 34 | #include <X11/extensions/XI.h> |
| 35 | #include <X11/Xatom.h> |
| 36 | #include <X11/extensions/XIproto.h> |
| 37 | #include <X11/extensions/XI2proto.h> |
| 38 | #include "exglobals.h" |
| 39 | #include "exevents.h" |
| 40 | #include "swaprep.h" |
| 41 | |
| 42 | #include "xiproperty.h" |
| 43 | #include "xserver-properties.h" |
| 44 | |
| 45 | /** |
| 46 | * Properties used or alloced from inside the server. |
| 47 | */ |
| 48 | static struct dev_properties { |
| 49 | Atom type; |
| 50 | const char *name; |
| 51 | } dev_properties[] = { |
| 52 | {0, XI_PROP_ENABLED}, |
| 53 | {0, XI_PROP_XTEST_DEVICE}, |
| 54 | {0, XATOM_FLOAT}, |
| 55 | {0, ACCEL_PROP_PROFILE_NUMBER}, |
| 56 | {0, ACCEL_PROP_CONSTANT_DECELERATION}, |
| 57 | {0, ACCEL_PROP_ADAPTIVE_DECELERATION}, |
| 58 | {0, ACCEL_PROP_VELOCITY_SCALING}, |
| 59 | {0, AXIS_LABEL_PROP}, |
| 60 | {0, AXIS_LABEL_PROP_REL_X}, |
| 61 | {0, AXIS_LABEL_PROP_REL_Y}, |
| 62 | {0, AXIS_LABEL_PROP_REL_Z}, |
| 63 | {0, AXIS_LABEL_PROP_REL_RX}, |
| 64 | {0, AXIS_LABEL_PROP_REL_RY}, |
| 65 | {0, AXIS_LABEL_PROP_REL_RZ}, |
| 66 | {0, AXIS_LABEL_PROP_REL_HWHEEL}, |
| 67 | {0, AXIS_LABEL_PROP_REL_DIAL}, |
| 68 | {0, AXIS_LABEL_PROP_REL_WHEEL}, |
| 69 | {0, AXIS_LABEL_PROP_REL_MISC}, |
| 70 | {0, AXIS_LABEL_PROP_REL_VSCROLL}, |
| 71 | {0, AXIS_LABEL_PROP_REL_HSCROLL}, |
| 72 | {0, AXIS_LABEL_PROP_ABS_X}, |
| 73 | {0, AXIS_LABEL_PROP_ABS_Y}, |
| 74 | {0, AXIS_LABEL_PROP_ABS_Z}, |
| 75 | {0, AXIS_LABEL_PROP_ABS_RX}, |
| 76 | {0, AXIS_LABEL_PROP_ABS_RY}, |
| 77 | {0, AXIS_LABEL_PROP_ABS_RZ}, |
| 78 | {0, AXIS_LABEL_PROP_ABS_THROTTLE}, |
| 79 | {0, AXIS_LABEL_PROP_ABS_RUDDER}, |
| 80 | {0, AXIS_LABEL_PROP_ABS_WHEEL}, |
| 81 | {0, AXIS_LABEL_PROP_ABS_GAS}, |
| 82 | {0, AXIS_LABEL_PROP_ABS_BRAKE}, |
| 83 | {0, AXIS_LABEL_PROP_ABS_HAT0X}, |
| 84 | {0, AXIS_LABEL_PROP_ABS_HAT0Y}, |
| 85 | {0, AXIS_LABEL_PROP_ABS_HAT1X}, |
| 86 | {0, AXIS_LABEL_PROP_ABS_HAT1Y}, |
| 87 | {0, AXIS_LABEL_PROP_ABS_HAT2X}, |
| 88 | {0, AXIS_LABEL_PROP_ABS_HAT2Y}, |
| 89 | {0, AXIS_LABEL_PROP_ABS_HAT3X}, |
| 90 | {0, AXIS_LABEL_PROP_ABS_HAT3Y}, |
| 91 | {0, AXIS_LABEL_PROP_ABS_PRESSURE}, |
| 92 | {0, AXIS_LABEL_PROP_ABS_DISTANCE}, |
| 93 | {0, AXIS_LABEL_PROP_ABS_TILT_X}, |
| 94 | {0, AXIS_LABEL_PROP_ABS_TILT_Y}, |
| 95 | {0, AXIS_LABEL_PROP_ABS_TOOL_WIDTH}, |
| 96 | {0, AXIS_LABEL_PROP_ABS_VOLUME}, |
| 97 | {0, AXIS_LABEL_PROP_ABS_MT_TOUCH_MAJOR}, |
| 98 | {0, AXIS_LABEL_PROP_ABS_MT_TOUCH_MINOR}, |
| 99 | {0, AXIS_LABEL_PROP_ABS_MT_WIDTH_MAJOR}, |
| 100 | {0, AXIS_LABEL_PROP_ABS_MT_WIDTH_MINOR}, |
| 101 | {0, AXIS_LABEL_PROP_ABS_MT_ORIENTATION}, |
| 102 | {0, AXIS_LABEL_PROP_ABS_MT_POSITION_X}, |
| 103 | {0, AXIS_LABEL_PROP_ABS_MT_POSITION_Y}, |
| 104 | {0, AXIS_LABEL_PROP_ABS_MT_TOOL_TYPE}, |
| 105 | {0, AXIS_LABEL_PROP_ABS_MT_BLOB_ID}, |
| 106 | {0, AXIS_LABEL_PROP_ABS_MT_TRACKING_ID}, |
| 107 | {0, AXIS_LABEL_PROP_ABS_MT_PRESSURE}, |
| 108 | {0, AXIS_LABEL_PROP_ABS_MT_DISTANCE}, |
| 109 | {0, AXIS_LABEL_PROP_ABS_MT_TOOL_X}, |
| 110 | {0, AXIS_LABEL_PROP_ABS_MT_TOOL_Y}, |
| 111 | {0, AXIS_LABEL_PROP_ABS_MISC}, |
| 112 | {0, BTN_LABEL_PROP}, |
| 113 | {0, BTN_LABEL_PROP_BTN_UNKNOWN}, |
| 114 | {0, BTN_LABEL_PROP_BTN_WHEEL_UP}, |
| 115 | {0, BTN_LABEL_PROP_BTN_WHEEL_DOWN}, |
| 116 | {0, BTN_LABEL_PROP_BTN_HWHEEL_LEFT}, |
| 117 | {0, BTN_LABEL_PROP_BTN_HWHEEL_RIGHT}, |
| 118 | {0, BTN_LABEL_PROP_BTN_0}, |
| 119 | {0, BTN_LABEL_PROP_BTN_1}, |
| 120 | {0, BTN_LABEL_PROP_BTN_2}, |
| 121 | {0, BTN_LABEL_PROP_BTN_3}, |
| 122 | {0, BTN_LABEL_PROP_BTN_4}, |
| 123 | {0, BTN_LABEL_PROP_BTN_5}, |
| 124 | {0, BTN_LABEL_PROP_BTN_6}, |
| 125 | {0, BTN_LABEL_PROP_BTN_7}, |
| 126 | {0, BTN_LABEL_PROP_BTN_8}, |
| 127 | {0, BTN_LABEL_PROP_BTN_9}, |
| 128 | {0, BTN_LABEL_PROP_BTN_LEFT}, |
| 129 | {0, BTN_LABEL_PROP_BTN_RIGHT}, |
| 130 | {0, BTN_LABEL_PROP_BTN_MIDDLE}, |
| 131 | {0, BTN_LABEL_PROP_BTN_SIDE}, |
| 132 | {0, BTN_LABEL_PROP_BTN_EXTRA}, |
| 133 | {0, BTN_LABEL_PROP_BTN_FORWARD}, |
| 134 | {0, BTN_LABEL_PROP_BTN_BACK}, |
| 135 | {0, BTN_LABEL_PROP_BTN_TASK}, |
| 136 | {0, BTN_LABEL_PROP_BTN_TRIGGER}, |
| 137 | {0, BTN_LABEL_PROP_BTN_THUMB}, |
| 138 | {0, BTN_LABEL_PROP_BTN_THUMB2}, |
| 139 | {0, BTN_LABEL_PROP_BTN_TOP}, |
| 140 | {0, BTN_LABEL_PROP_BTN_TOP2}, |
| 141 | {0, BTN_LABEL_PROP_BTN_PINKIE}, |
| 142 | {0, BTN_LABEL_PROP_BTN_BASE}, |
| 143 | {0, BTN_LABEL_PROP_BTN_BASE2}, |
| 144 | {0, BTN_LABEL_PROP_BTN_BASE3}, |
| 145 | {0, BTN_LABEL_PROP_BTN_BASE4}, |
| 146 | {0, BTN_LABEL_PROP_BTN_BASE5}, |
| 147 | {0, BTN_LABEL_PROP_BTN_BASE6}, |
| 148 | {0, BTN_LABEL_PROP_BTN_DEAD}, |
| 149 | {0, BTN_LABEL_PROP_BTN_A}, |
| 150 | {0, BTN_LABEL_PROP_BTN_B}, |
| 151 | {0, BTN_LABEL_PROP_BTN_C}, |
| 152 | {0, BTN_LABEL_PROP_BTN_X}, |
| 153 | {0, BTN_LABEL_PROP_BTN_Y}, |
| 154 | {0, BTN_LABEL_PROP_BTN_Z}, |
| 155 | {0, BTN_LABEL_PROP_BTN_TL}, |
| 156 | {0, BTN_LABEL_PROP_BTN_TR}, |
| 157 | {0, BTN_LABEL_PROP_BTN_TL2}, |
| 158 | {0, BTN_LABEL_PROP_BTN_TR2}, |
| 159 | {0, BTN_LABEL_PROP_BTN_SELECT}, |
| 160 | {0, BTN_LABEL_PROP_BTN_START}, |
| 161 | {0, BTN_LABEL_PROP_BTN_MODE}, |
| 162 | {0, BTN_LABEL_PROP_BTN_THUMBL}, |
| 163 | {0, BTN_LABEL_PROP_BTN_THUMBR}, |
| 164 | {0, BTN_LABEL_PROP_BTN_TOOL_PEN}, |
| 165 | {0, BTN_LABEL_PROP_BTN_TOOL_RUBBER}, |
| 166 | {0, BTN_LABEL_PROP_BTN_TOOL_BRUSH}, |
| 167 | {0, BTN_LABEL_PROP_BTN_TOOL_PENCIL}, |
| 168 | {0, BTN_LABEL_PROP_BTN_TOOL_AIRBRUSH}, |
| 169 | {0, BTN_LABEL_PROP_BTN_TOOL_FINGER}, |
| 170 | {0, BTN_LABEL_PROP_BTN_TOOL_MOUSE}, |
| 171 | {0, BTN_LABEL_PROP_BTN_TOOL_LENS}, |
| 172 | {0, BTN_LABEL_PROP_BTN_TOUCH}, |
| 173 | {0, BTN_LABEL_PROP_BTN_STYLUS}, |
| 174 | {0, BTN_LABEL_PROP_BTN_STYLUS2}, |
| 175 | {0, BTN_LABEL_PROP_BTN_TOOL_DOUBLETAP}, |
| 176 | {0, BTN_LABEL_PROP_BTN_TOOL_TRIPLETAP}, |
| 177 | {0, BTN_LABEL_PROP_BTN_GEAR_DOWN}, |
| 178 | {0, BTN_LABEL_PROP_BTN_GEAR_UP}, |
| 179 | {0, XI_PROP_TRANSFORM} |
| 180 | }; |
| 181 | |
| 182 | static long XIPropHandlerID = 1; |
| 183 | |
| 184 | static void |
| 185 | send_property_event(DeviceIntPtr dev, Atom property, int what) |
| 186 | { |
| 187 | int state = (what == XIPropertyDeleted) ? PropertyDelete : PropertyNewValue; |
| 188 | devicePropertyNotify event = { |
| 189 | .type = DevicePropertyNotify, |
| 190 | .deviceid = dev->id, |
| 191 | .state = state, |
| 192 | .atom = property, |
| 193 | .time = currentTime.milliseconds |
| 194 | }; |
| 195 | xXIPropertyEvent xi2 = { |
| 196 | .type = GenericEvent, |
| 197 | .extension = IReqCode, |
| 198 | .length = 0, |
| 199 | .evtype = XI_PropertyEvent, |
| 200 | .deviceid = dev->id, |
| 201 | .time = currentTime.milliseconds, |
| 202 | .property = property, |
| 203 | .what = what |
| 204 | }; |
| 205 | |
| 206 | SendEventToAllWindows(dev, DevicePropertyNotifyMask, (xEvent *) &event, 1); |
| 207 | |
| 208 | SendEventToAllWindows(dev, GetEventFilter(dev, (xEvent *) &xi2), |
| 209 | (xEvent *) &xi2, 1); |
| 210 | } |
| 211 | |
| 212 | static int |
| 213 | list_atoms(DeviceIntPtr dev, int *natoms, Atom **atoms_return) |
| 214 | { |
| 215 | XIPropertyPtr prop; |
| 216 | Atom *atoms = NULL; |
| 217 | int nprops = 0; |
| 218 | |
| 219 | for (prop = dev->properties.properties; prop; prop = prop->next) |
| 220 | nprops++; |
| 221 | if (nprops) { |
| 222 | Atom *a; |
| 223 | |
| 224 | atoms = malloc(nprops * sizeof(Atom)); |
| 225 | if (!atoms) |
| 226 | return BadAlloc; |
| 227 | a = atoms; |
| 228 | for (prop = dev->properties.properties; prop; prop = prop->next, a++) |
| 229 | *a = prop->propertyName; |
| 230 | } |
| 231 | |
| 232 | *natoms = nprops; |
| 233 | *atoms_return = atoms; |
| 234 | return Success; |
| 235 | } |
| 236 | |
| 237 | static int |
| 238 | get_property(ClientPtr client, DeviceIntPtr dev, Atom property, Atom type, |
| 239 | BOOL delete, int offset, int length, |
| 240 | int *bytes_after, Atom *type_return, int *format, int *nitems, |
| 241 | int *length_return, char **data) |
| 242 | { |
| 243 | unsigned long n, len, ind; |
| 244 | int rc; |
| 245 | XIPropertyPtr prop; |
| 246 | XIPropertyValuePtr prop_value; |
| 247 | |
| 248 | if (!ValidAtom(property)) { |
| 249 | client->errorValue = property; |
| 250 | return BadAtom; |
| 251 | } |
| 252 | if ((delete != xTrue) && (delete != xFalse)) { |
| 253 | client->errorValue = delete; |
| 254 | return BadValue; |
| 255 | } |
| 256 | |
| 257 | if ((type != AnyPropertyType) && !ValidAtom(type)) { |
| 258 | client->errorValue = type; |
| 259 | return BadAtom; |
| 260 | } |
| 261 | |
| 262 | for (prop = dev->properties.properties; prop; prop = prop->next) |
| 263 | if (prop->propertyName == property) |
| 264 | break; |
| 265 | |
| 266 | if (!prop) { |
| 267 | *bytes_after = 0; |
| 268 | *type_return = None; |
| 269 | *format = 0; |
| 270 | *nitems = 0; |
| 271 | *length_return = 0; |
| 272 | return Success; |
| 273 | } |
| 274 | |
| 275 | rc = XIGetDeviceProperty(dev, property, &prop_value); |
| 276 | if (rc != Success) { |
| 277 | client->errorValue = property; |
| 278 | return rc; |
| 279 | } |
| 280 | |
| 281 | /* If the request type and actual type don't match. Return the |
| 282 | property information, but not the data. */ |
| 283 | |
| 284 | if (((type != prop_value->type) && (type != AnyPropertyType))) { |
| 285 | *bytes_after = prop_value->size; |
| 286 | *format = prop_value->format; |
| 287 | *length_return = 0; |
| 288 | *nitems = 0; |
| 289 | *type_return = prop_value->type; |
| 290 | return Success; |
| 291 | } |
| 292 | |
| 293 | /* Return type, format, value to client */ |
| 294 | n = (prop_value->format / 8) * prop_value->size; /* size (bytes) of prop */ |
| 295 | ind = offset << 2; |
| 296 | |
| 297 | /* If offset is invalid such that it causes "len" to |
| 298 | be negative, it's a value error. */ |
| 299 | |
| 300 | if (n < ind) { |
| 301 | client->errorValue = offset; |
| 302 | return BadValue; |
| 303 | } |
| 304 | |
| 305 | len = min(n - ind, 4 * length); |
| 306 | |
| 307 | *bytes_after = n - (ind + len); |
| 308 | *format = prop_value->format; |
| 309 | *length_return = len; |
| 310 | if (prop_value->format) |
| 311 | *nitems = len / (prop_value->format / 8); |
| 312 | else |
| 313 | *nitems = 0; |
| 314 | *type_return = prop_value->type; |
| 315 | |
| 316 | *data = (char *) prop_value->data + ind; |
| 317 | |
| 318 | return Success; |
| 319 | } |
| 320 | |
| 321 | static int |
| 322 | check_change_property(ClientPtr client, Atom property, Atom type, int format, |
| 323 | int mode, int nitems) |
| 324 | { |
| 325 | if ((mode != PropModeReplace) && (mode != PropModeAppend) && |
| 326 | (mode != PropModePrepend)) { |
| 327 | client->errorValue = mode; |
| 328 | return BadValue; |
| 329 | } |
| 330 | if ((format != 8) && (format != 16) && (format != 32)) { |
| 331 | client->errorValue = format; |
| 332 | return BadValue; |
| 333 | } |
| 334 | |
| 335 | if (!ValidAtom(property)) { |
| 336 | client->errorValue = property; |
| 337 | return BadAtom; |
| 338 | } |
| 339 | if (!ValidAtom(type)) { |
| 340 | client->errorValue = type; |
| 341 | return BadAtom; |
| 342 | } |
| 343 | |
| 344 | return Success; |
| 345 | } |
| 346 | |
| 347 | static int |
| 348 | change_property(ClientPtr client, DeviceIntPtr dev, Atom property, Atom type, |
| 349 | int format, int mode, int len, void *data) |
| 350 | { |
| 351 | int rc = Success; |
| 352 | |
| 353 | rc = XIChangeDeviceProperty(dev, property, type, format, mode, len, data, |
| 354 | TRUE); |
| 355 | if (rc != Success) |
| 356 | client->errorValue = property; |
| 357 | |
| 358 | return rc; |
| 359 | } |
| 360 | |
| 361 | /** |
| 362 | * Return the atom assigned to the specified string or 0 if the atom isn't known |
| 363 | * to the DIX. |
| 364 | * |
| 365 | * If name is NULL, None is returned. |
| 366 | */ |
| 367 | Atom |
| 368 | XIGetKnownProperty(const char *name) |
| 369 | { |
| 370 | int i; |
| 371 | |
| 372 | if (!name) |
| 373 | return None; |
| 374 | |
| 375 | for (i = 0; i < (sizeof(dev_properties) / sizeof(struct dev_properties)); |
| 376 | i++) { |
| 377 | if (strcmp(name, dev_properties[i].name) == 0) { |
| 378 | if (dev_properties[i].type == None) { |
| 379 | dev_properties[i].type = |
| 380 | MakeAtom(dev_properties[i].name, |
| 381 | strlen(dev_properties[i].name), TRUE); |
| 382 | } |
| 383 | |
| 384 | return dev_properties[i].type; |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | return 0; |
| 389 | } |
| 390 | |
| 391 | void |
| 392 | XIResetProperties(void) |
| 393 | { |
| 394 | int i; |
| 395 | |
| 396 | for (i = 0; i < (sizeof(dev_properties) / sizeof(struct dev_properties)); |
| 397 | i++) |
| 398 | dev_properties[i].type = None; |
| 399 | } |
| 400 | |
| 401 | /** |
| 402 | * Convert the given property's value(s) into @nelem_return integer values and |
| 403 | * store them in @buf_return. If @nelem_return is larger than the number of |
| 404 | * values in the property, @nelem_return is set to the number of values in the |
| 405 | * property. |
| 406 | * |
| 407 | * If *@buf_return is NULL and @nelem_return is 0, memory is allocated |
| 408 | * automatically and must be freed by the caller. |
| 409 | * |
| 410 | * Possible return codes. |
| 411 | * Success ... No error. |
| 412 | * BadMatch ... Wrong atom type, atom is not XA_INTEGER |
| 413 | * BadAlloc ... NULL passed as buffer and allocation failed. |
| 414 | * BadLength ... @buff is NULL but @nelem_return is non-zero. |
| 415 | * |
| 416 | * @param val The property value |
| 417 | * @param nelem_return The maximum number of elements to return. |
| 418 | * @param buf_return Pointer to an array of at least @nelem_return values. |
| 419 | * @return Success or the error code if an error occured. |
| 420 | */ |
| 421 | _X_EXPORT int |
| 422 | XIPropToInt(XIPropertyValuePtr val, int *nelem_return, int **buf_return) |
| 423 | { |
| 424 | int i; |
| 425 | int *buf; |
| 426 | |
| 427 | if (val->type != XA_INTEGER) |
| 428 | return BadMatch; |
| 429 | if (!*buf_return && *nelem_return) |
| 430 | return BadLength; |
| 431 | |
| 432 | switch (val->format) { |
| 433 | case 8: |
| 434 | case 16: |
| 435 | case 32: |
| 436 | break; |
| 437 | default: |
| 438 | return BadValue; |
| 439 | } |
| 440 | |
| 441 | buf = *buf_return; |
| 442 | |
| 443 | if (!buf && !(*nelem_return)) { |
| 444 | buf = calloc(val->size, sizeof(int)); |
| 445 | if (!buf) |
| 446 | return BadAlloc; |
| 447 | *buf_return = buf; |
| 448 | *nelem_return = val->size; |
| 449 | } |
| 450 | else if (val->size < *nelem_return) |
| 451 | *nelem_return = val->size; |
| 452 | |
| 453 | for (i = 0; i < val->size && i < *nelem_return; i++) { |
| 454 | switch (val->format) { |
| 455 | case 8: |
| 456 | buf[i] = ((CARD8 *) val->data)[i]; |
| 457 | break; |
| 458 | case 16: |
| 459 | buf[i] = ((CARD16 *) val->data)[i]; |
| 460 | break; |
| 461 | case 32: |
| 462 | buf[i] = ((CARD32 *) val->data)[i]; |
| 463 | break; |
| 464 | } |
| 465 | } |
| 466 | |
| 467 | return Success; |
| 468 | } |
| 469 | |
| 470 | /** |
| 471 | * Convert the given property's value(s) into @nelem_return float values and |
| 472 | * store them in @buf_return. If @nelem_return is larger than the number of |
| 473 | * values in the property, @nelem_return is set to the number of values in the |
| 474 | * property. |
| 475 | * |
| 476 | * If *@buf_return is NULL and @nelem_return is 0, memory is allocated |
| 477 | * automatically and must be freed by the caller. |
| 478 | * |
| 479 | * Possible errors returned: |
| 480 | * Success |
| 481 | * BadMatch ... Wrong atom type, atom is not XA_FLOAT |
| 482 | * BadValue ... Wrong format, format is not 32 |
| 483 | * BadAlloc ... NULL passed as buffer and allocation failed. |
| 484 | * BadLength ... @buff is NULL but @nelem_return is non-zero. |
| 485 | * |
| 486 | * @param val The property value |
| 487 | * @param nelem_return The maximum number of elements to return. |
| 488 | * @param buf_return Pointer to an array of at least @nelem_return values. |
| 489 | * @return Success or the error code if an error occured. |
| 490 | */ |
| 491 | _X_EXPORT int |
| 492 | XIPropToFloat(XIPropertyValuePtr val, int *nelem_return, float **buf_return) |
| 493 | { |
| 494 | int i; |
| 495 | float *buf; |
| 496 | |
| 497 | if (!val->type || val->type != XIGetKnownProperty(XATOM_FLOAT)) |
| 498 | return BadMatch; |
| 499 | |
| 500 | if (val->format != 32) |
| 501 | return BadValue; |
| 502 | if (!*buf_return && *nelem_return) |
| 503 | return BadLength; |
| 504 | |
| 505 | buf = *buf_return; |
| 506 | |
| 507 | if (!buf && !(*nelem_return)) { |
| 508 | buf = calloc(val->size, sizeof(float)); |
| 509 | if (!buf) |
| 510 | return BadAlloc; |
| 511 | *buf_return = buf; |
| 512 | *nelem_return = val->size; |
| 513 | } |
| 514 | else if (val->size < *nelem_return) |
| 515 | *nelem_return = val->size; |
| 516 | |
| 517 | for (i = 0; i < val->size && i < *nelem_return; i++) |
| 518 | buf[i] = ((float *) val->data)[i]; |
| 519 | |
| 520 | return Success; |
| 521 | } |
| 522 | |
| 523 | /* Registers a new property handler on the given device and returns a unique |
| 524 | * identifier for this handler. This identifier is required to unregister the |
| 525 | * property handler again. |
| 526 | * @return The handler's identifier or 0 if an error occured. |
| 527 | */ |
| 528 | long |
| 529 | XIRegisterPropertyHandler(DeviceIntPtr dev, |
| 530 | int (*SetProperty) (DeviceIntPtr dev, |
| 531 | Atom property, |
| 532 | XIPropertyValuePtr prop, |
| 533 | BOOL checkonly), |
| 534 | int (*GetProperty) (DeviceIntPtr dev, |
| 535 | Atom property), |
| 536 | int (*DeleteProperty) (DeviceIntPtr dev, |
| 537 | Atom property)) |
| 538 | { |
| 539 | XIPropertyHandlerPtr new_handler; |
| 540 | |
| 541 | new_handler = calloc(1, sizeof(XIPropertyHandler)); |
| 542 | if (!new_handler) |
| 543 | return 0; |
| 544 | |
| 545 | new_handler->id = XIPropHandlerID++; |
| 546 | new_handler->SetProperty = SetProperty; |
| 547 | new_handler->GetProperty = GetProperty; |
| 548 | new_handler->DeleteProperty = DeleteProperty; |
| 549 | new_handler->next = dev->properties.handlers; |
| 550 | dev->properties.handlers = new_handler; |
| 551 | |
| 552 | return new_handler->id; |
| 553 | } |
| 554 | |
| 555 | void |
| 556 | XIUnregisterPropertyHandler(DeviceIntPtr dev, long id) |
| 557 | { |
| 558 | XIPropertyHandlerPtr curr, prev = NULL; |
| 559 | |
| 560 | curr = dev->properties.handlers; |
| 561 | while (curr && curr->id != id) { |
| 562 | prev = curr; |
| 563 | curr = curr->next; |
| 564 | } |
| 565 | |
| 566 | if (!curr) |
| 567 | return; |
| 568 | |
| 569 | if (!prev) /* first one */ |
| 570 | dev->properties.handlers = curr->next; |
| 571 | else |
| 572 | prev->next = curr->next; |
| 573 | |
| 574 | free(curr); |
| 575 | } |
| 576 | |
| 577 | static XIPropertyPtr |
| 578 | XICreateDeviceProperty(Atom property) |
| 579 | { |
| 580 | XIPropertyPtr prop; |
| 581 | |
| 582 | prop = (XIPropertyPtr) malloc(sizeof(XIPropertyRec)); |
| 583 | if (!prop) |
| 584 | return NULL; |
| 585 | |
| 586 | prop->next = NULL; |
| 587 | prop->propertyName = property; |
| 588 | prop->value.type = None; |
| 589 | prop->value.format = 0; |
| 590 | prop->value.size = 0; |
| 591 | prop->value.data = NULL; |
| 592 | prop->deletable = TRUE; |
| 593 | |
| 594 | return prop; |
| 595 | } |
| 596 | |
| 597 | static XIPropertyPtr |
| 598 | XIFetchDeviceProperty(DeviceIntPtr dev, Atom property) |
| 599 | { |
| 600 | XIPropertyPtr prop; |
| 601 | |
| 602 | for (prop = dev->properties.properties; prop; prop = prop->next) |
| 603 | if (prop->propertyName == property) |
| 604 | return prop; |
| 605 | return NULL; |
| 606 | } |
| 607 | |
| 608 | static void |
| 609 | XIDestroyDeviceProperty(XIPropertyPtr prop) |
| 610 | { |
| 611 | free(prop->value.data); |
| 612 | free(prop); |
| 613 | } |
| 614 | |
| 615 | /* This function destroys all of the device's property-related stuff, |
| 616 | * including removing all device handlers. |
| 617 | * DO NOT CALL FROM THE DRIVER. |
| 618 | */ |
| 619 | void |
| 620 | XIDeleteAllDeviceProperties(DeviceIntPtr device) |
| 621 | { |
| 622 | XIPropertyPtr prop, next; |
| 623 | XIPropertyHandlerPtr curr_handler, next_handler; |
| 624 | |
| 625 | for (prop = device->properties.properties; prop; prop = next) { |
| 626 | next = prop->next; |
| 627 | send_property_event(device, prop->propertyName, XIPropertyDeleted); |
| 628 | XIDestroyDeviceProperty(prop); |
| 629 | } |
| 630 | |
| 631 | device->properties.properties = NULL; |
| 632 | |
| 633 | /* Now free all handlers */ |
| 634 | curr_handler = device->properties.handlers; |
| 635 | while (curr_handler) { |
| 636 | next_handler = curr_handler->next; |
| 637 | free(curr_handler); |
| 638 | curr_handler = next_handler; |
| 639 | } |
| 640 | |
| 641 | device->properties.handlers = NULL; |
| 642 | } |
| 643 | |
| 644 | int |
| 645 | XIDeleteDeviceProperty(DeviceIntPtr device, Atom property, Bool fromClient) |
| 646 | { |
| 647 | XIPropertyPtr prop, *prev; |
| 648 | int rc = Success; |
| 649 | |
| 650 | for (prev = &device->properties.properties; (prop = *prev); |
| 651 | prev = &(prop->next)) |
| 652 | if (prop->propertyName == property) |
| 653 | break; |
| 654 | |
| 655 | if (!prop) |
| 656 | return Success; |
| 657 | |
| 658 | if (fromClient && !prop->deletable) |
| 659 | return BadAccess; |
| 660 | |
| 661 | /* Ask handlers if we may delete the property */ |
| 662 | if (device->properties.handlers) { |
| 663 | XIPropertyHandlerPtr handler = device->properties.handlers; |
| 664 | |
| 665 | while (handler) { |
| 666 | if (handler->DeleteProperty) |
| 667 | rc = handler->DeleteProperty(device, prop->propertyName); |
| 668 | if (rc != Success) |
| 669 | return rc; |
| 670 | handler = handler->next; |
| 671 | } |
| 672 | } |
| 673 | |
| 674 | if (prop) { |
| 675 | *prev = prop->next; |
| 676 | send_property_event(device, prop->propertyName, XIPropertyDeleted); |
| 677 | XIDestroyDeviceProperty(prop); |
| 678 | } |
| 679 | |
| 680 | return Success; |
| 681 | } |
| 682 | |
| 683 | int |
| 684 | XIChangeDeviceProperty(DeviceIntPtr dev, Atom property, Atom type, |
| 685 | int format, int mode, unsigned long len, |
| 686 | const void *value, Bool sendevent) |
| 687 | { |
| 688 | XIPropertyPtr prop; |
| 689 | int size_in_bytes; |
| 690 | int total_size; |
| 691 | unsigned long total_len; |
| 692 | XIPropertyValuePtr prop_value; |
| 693 | XIPropertyValueRec new_value; |
| 694 | Bool add = FALSE; |
| 695 | int rc; |
| 696 | |
| 697 | size_in_bytes = format >> 3; |
| 698 | |
| 699 | /* first see if property already exists */ |
| 700 | prop = XIFetchDeviceProperty(dev, property); |
| 701 | if (!prop) { /* just add to list */ |
| 702 | prop = XICreateDeviceProperty(property); |
| 703 | if (!prop) |
| 704 | return BadAlloc; |
| 705 | add = TRUE; |
| 706 | mode = PropModeReplace; |
| 707 | } |
| 708 | prop_value = &prop->value; |
| 709 | |
| 710 | /* To append or prepend to a property the request format and type |
| 711 | must match those of the already defined property. The |
| 712 | existing format and type are irrelevant when using the mode |
| 713 | "PropModeReplace" since they will be written over. */ |
| 714 | |
| 715 | if ((format != prop_value->format) && (mode != PropModeReplace)) |
| 716 | return BadMatch; |
| 717 | if ((prop_value->type != type) && (mode != PropModeReplace)) |
| 718 | return BadMatch; |
| 719 | new_value = *prop_value; |
| 720 | if (mode == PropModeReplace) |
| 721 | total_len = len; |
| 722 | else |
| 723 | total_len = prop_value->size + len; |
| 724 | |
| 725 | if (mode == PropModeReplace || len > 0) { |
| 726 | pointer new_data = NULL, old_data = NULL; |
| 727 | |
| 728 | total_size = total_len * size_in_bytes; |
| 729 | new_value.data = (pointer) malloc(total_size); |
| 730 | if (!new_value.data && total_size) { |
| 731 | if (add) |
| 732 | XIDestroyDeviceProperty(prop); |
| 733 | return BadAlloc; |
| 734 | } |
| 735 | new_value.size = len; |
| 736 | new_value.type = type; |
| 737 | new_value.format = format; |
| 738 | |
| 739 | switch (mode) { |
| 740 | case PropModeReplace: |
| 741 | new_data = new_value.data; |
| 742 | old_data = NULL; |
| 743 | break; |
| 744 | case PropModeAppend: |
| 745 | new_data = (pointer) (((char *) new_value.data) + |
| 746 | (prop_value->size * size_in_bytes)); |
| 747 | old_data = new_value.data; |
| 748 | break; |
| 749 | case PropModePrepend: |
| 750 | new_data = new_value.data; |
| 751 | old_data = (pointer) (((char *) new_value.data) + |
| 752 | (prop_value->size * size_in_bytes)); |
| 753 | break; |
| 754 | } |
| 755 | if (new_data) |
| 756 | memcpy((char *) new_data, value, len * size_in_bytes); |
| 757 | if (old_data) |
| 758 | memcpy((char *) old_data, (char *) prop_value->data, |
| 759 | prop_value->size * size_in_bytes); |
| 760 | |
| 761 | if (dev->properties.handlers) { |
| 762 | XIPropertyHandlerPtr handler; |
| 763 | BOOL checkonly = TRUE; |
| 764 | |
| 765 | /* run through all handlers with checkonly TRUE, then again with |
| 766 | * checkonly FALSE. Handlers MUST return error codes on the |
| 767 | * checkonly run, errors on the second run are ignored */ |
| 768 | do { |
| 769 | handler = dev->properties.handlers; |
| 770 | while (handler) { |
| 771 | if (handler->SetProperty) { |
| 772 | rc = handler->SetProperty(dev, prop->propertyName, |
| 773 | &new_value, checkonly); |
| 774 | if (checkonly && rc != Success) { |
| 775 | free(new_value.data); |
| 776 | if (add) |
| 777 | XIDestroyDeviceProperty(prop); |
| 778 | return rc; |
| 779 | } |
| 780 | } |
| 781 | handler = handler->next; |
| 782 | } |
| 783 | checkonly = !checkonly; |
| 784 | } while (!checkonly); |
| 785 | } |
| 786 | free(prop_value->data); |
| 787 | *prop_value = new_value; |
| 788 | } |
| 789 | else if (len == 0) { |
| 790 | /* do nothing */ |
| 791 | } |
| 792 | |
| 793 | if (add) { |
| 794 | prop->next = dev->properties.properties; |
| 795 | dev->properties.properties = prop; |
| 796 | } |
| 797 | |
| 798 | if (sendevent) |
| 799 | send_property_event(dev, prop->propertyName, |
| 800 | (add) ? XIPropertyCreated : XIPropertyModified); |
| 801 | |
| 802 | return Success; |
| 803 | } |
| 804 | |
| 805 | int |
| 806 | XIGetDeviceProperty(DeviceIntPtr dev, Atom property, XIPropertyValuePtr *value) |
| 807 | { |
| 808 | XIPropertyPtr prop = XIFetchDeviceProperty(dev, property); |
| 809 | int rc; |
| 810 | |
| 811 | if (!prop) { |
| 812 | *value = NULL; |
| 813 | return BadAtom; |
| 814 | } |
| 815 | |
| 816 | /* If we can, try to update the property value first */ |
| 817 | if (dev->properties.handlers) { |
| 818 | XIPropertyHandlerPtr handler = dev->properties.handlers; |
| 819 | |
| 820 | while (handler) { |
| 821 | if (handler->GetProperty) { |
| 822 | rc = handler->GetProperty(dev, prop->propertyName); |
| 823 | if (rc != Success) { |
| 824 | *value = NULL; |
| 825 | return rc; |
| 826 | } |
| 827 | } |
| 828 | handler = handler->next; |
| 829 | } |
| 830 | } |
| 831 | |
| 832 | *value = &prop->value; |
| 833 | return Success; |
| 834 | } |
| 835 | |
| 836 | int |
| 837 | XISetDevicePropertyDeletable(DeviceIntPtr dev, Atom property, Bool deletable) |
| 838 | { |
| 839 | XIPropertyPtr prop = XIFetchDeviceProperty(dev, property); |
| 840 | |
| 841 | if (!prop) |
| 842 | return BadAtom; |
| 843 | |
| 844 | prop->deletable = deletable; |
| 845 | return Success; |
| 846 | } |
| 847 | |
| 848 | int |
| 849 | ProcXListDeviceProperties(ClientPtr client) |
| 850 | { |
| 851 | Atom *atoms; |
| 852 | xListDevicePropertiesReply rep; |
| 853 | int natoms; |
| 854 | DeviceIntPtr dev; |
| 855 | int rc = Success; |
| 856 | |
| 857 | REQUEST(xListDevicePropertiesReq); |
| 858 | REQUEST_SIZE_MATCH(xListDevicePropertiesReq); |
| 859 | |
| 860 | rc = dixLookupDevice(&dev, stuff->deviceid, client, DixListPropAccess); |
| 861 | if (rc != Success) |
| 862 | return rc; |
| 863 | |
| 864 | rc = list_atoms(dev, &natoms, &atoms); |
| 865 | if (rc != Success) |
| 866 | return rc; |
| 867 | |
| 868 | rep = (xListDevicePropertiesReply) { |
| 869 | .repType = X_Reply, |
| 870 | .RepType = X_ListDeviceProperties, |
| 871 | .sequenceNumber = client->sequence, |
| 872 | .length = natoms, |
| 873 | .nAtoms = natoms |
| 874 | }; |
| 875 | |
| 876 | WriteReplyToClient(client, sizeof(xListDevicePropertiesReply), &rep); |
| 877 | if (natoms) { |
| 878 | client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write; |
| 879 | WriteSwappedDataToClient(client, natoms * sizeof(Atom), atoms); |
| 880 | free(atoms); |
| 881 | } |
| 882 | return rc; |
| 883 | } |
| 884 | |
| 885 | int |
| 886 | ProcXChangeDeviceProperty(ClientPtr client) |
| 887 | { |
| 888 | REQUEST(xChangeDevicePropertyReq); |
| 889 | DeviceIntPtr dev; |
| 890 | unsigned long len; |
| 891 | int totalSize; |
| 892 | int rc; |
| 893 | |
| 894 | REQUEST_AT_LEAST_SIZE(xChangeDevicePropertyReq); |
| 895 | UpdateCurrentTime(); |
| 896 | |
| 897 | rc = dixLookupDevice(&dev, stuff->deviceid, client, DixSetPropAccess); |
| 898 | if (rc != Success) |
| 899 | return rc; |
| 900 | |
| 901 | rc = check_change_property(client, stuff->property, stuff->type, |
| 902 | stuff->format, stuff->mode, stuff->nUnits); |
| 903 | |
| 904 | len = stuff->nUnits; |
| 905 | if (len > (bytes_to_int32(0xffffffff - sizeof(xChangeDevicePropertyReq)))) |
| 906 | return BadLength; |
| 907 | |
| 908 | totalSize = len * (stuff->format / 8); |
| 909 | REQUEST_FIXED_SIZE(xChangeDevicePropertyReq, totalSize); |
| 910 | |
| 911 | rc = change_property(client, dev, stuff->property, stuff->type, |
| 912 | stuff->format, stuff->mode, len, (void *) &stuff[1]); |
| 913 | return rc; |
| 914 | } |
| 915 | |
| 916 | int |
| 917 | ProcXDeleteDeviceProperty(ClientPtr client) |
| 918 | { |
| 919 | REQUEST(xDeleteDevicePropertyReq); |
| 920 | DeviceIntPtr dev; |
| 921 | int rc; |
| 922 | |
| 923 | REQUEST_SIZE_MATCH(xDeleteDevicePropertyReq); |
| 924 | UpdateCurrentTime(); |
| 925 | rc = dixLookupDevice(&dev, stuff->deviceid, client, DixSetPropAccess); |
| 926 | if (rc != Success) |
| 927 | return rc; |
| 928 | |
| 929 | if (!ValidAtom(stuff->property)) { |
| 930 | client->errorValue = stuff->property; |
| 931 | return BadAtom; |
| 932 | } |
| 933 | |
| 934 | rc = XIDeleteDeviceProperty(dev, stuff->property, TRUE); |
| 935 | return rc; |
| 936 | } |
| 937 | |
| 938 | int |
| 939 | ProcXGetDeviceProperty(ClientPtr client) |
| 940 | { |
| 941 | REQUEST(xGetDevicePropertyReq); |
| 942 | DeviceIntPtr dev; |
| 943 | int length; |
| 944 | int rc, format, nitems, bytes_after; |
| 945 | char *data; |
| 946 | Atom type; |
| 947 | xGetDevicePropertyReply reply; |
| 948 | |
| 949 | REQUEST_SIZE_MATCH(xGetDevicePropertyReq); |
| 950 | if (stuff->delete) |
| 951 | UpdateCurrentTime(); |
| 952 | rc = dixLookupDevice(&dev, stuff->deviceid, client, |
| 953 | stuff->delete ? DixSetPropAccess : DixGetPropAccess); |
| 954 | if (rc != Success) |
| 955 | return rc; |
| 956 | |
| 957 | rc = get_property(client, dev, stuff->property, stuff->type, |
| 958 | stuff->delete, stuff->longOffset, stuff->longLength, |
| 959 | &bytes_after, &type, &format, &nitems, &length, &data); |
| 960 | |
| 961 | if (rc != Success) |
| 962 | return rc; |
| 963 | |
| 964 | reply = (xGetDevicePropertyReply) { |
| 965 | .repType = X_Reply, |
| 966 | .RepType = X_GetDeviceProperty, |
| 967 | .sequenceNumber = client->sequence, |
| 968 | .length = bytes_to_int32(length), |
| 969 | .propertyType = type, |
| 970 | .bytesAfter = bytes_after, |
| 971 | .nItems = nitems, |
| 972 | .format = format, |
| 973 | .deviceid = dev->id |
| 974 | }; |
| 975 | |
| 976 | if (stuff->delete && (reply.bytesAfter == 0)) |
| 977 | send_property_event(dev, stuff->property, XIPropertyDeleted); |
| 978 | |
| 979 | WriteReplyToClient(client, sizeof(xGenericReply), &reply); |
| 980 | |
| 981 | if (length) { |
| 982 | switch (reply.format) { |
| 983 | case 32: |
| 984 | client->pSwapReplyFunc = (ReplySwapPtr) CopySwap32Write; |
| 985 | break; |
| 986 | case 16: |
| 987 | client->pSwapReplyFunc = (ReplySwapPtr) CopySwap16Write; |
| 988 | break; |
| 989 | default: |
| 990 | client->pSwapReplyFunc = (ReplySwapPtr) WriteToClient; |
| 991 | break; |
| 992 | } |
| 993 | WriteSwappedDataToClient(client, length, data); |
| 994 | } |
| 995 | |
| 996 | /* delete the Property */ |
| 997 | if (stuff->delete && (reply.bytesAfter == 0)) { |
| 998 | XIPropertyPtr prop, *prev; |
| 999 | |
| 1000 | for (prev = &dev->properties.properties; (prop = *prev); |
| 1001 | prev = &prop->next) { |
| 1002 | if (prop->propertyName == stuff->property) { |
| 1003 | *prev = prop->next; |
| 1004 | XIDestroyDeviceProperty(prop); |
| 1005 | break; |
| 1006 | } |
| 1007 | } |
| 1008 | } |
| 1009 | return Success; |
| 1010 | } |
| 1011 | |
| 1012 | int |
| 1013 | SProcXListDeviceProperties(ClientPtr client) |
| 1014 | { |
| 1015 | REQUEST(xListDevicePropertiesReq); |
| 1016 | |
| 1017 | swaps(&stuff->length); |
| 1018 | |
| 1019 | REQUEST_SIZE_MATCH(xListDevicePropertiesReq); |
| 1020 | return (ProcXListDeviceProperties(client)); |
| 1021 | } |
| 1022 | |
| 1023 | int |
| 1024 | SProcXChangeDeviceProperty(ClientPtr client) |
| 1025 | { |
| 1026 | REQUEST(xChangeDevicePropertyReq); |
| 1027 | |
| 1028 | REQUEST_AT_LEAST_SIZE(xChangeDevicePropertyReq); |
| 1029 | swaps(&stuff->length); |
| 1030 | swapl(&stuff->property); |
| 1031 | swapl(&stuff->type); |
| 1032 | swapl(&stuff->nUnits); |
| 1033 | return (ProcXChangeDeviceProperty(client)); |
| 1034 | } |
| 1035 | |
| 1036 | int |
| 1037 | SProcXDeleteDeviceProperty(ClientPtr client) |
| 1038 | { |
| 1039 | REQUEST(xDeleteDevicePropertyReq); |
| 1040 | |
| 1041 | swaps(&stuff->length); |
| 1042 | swapl(&stuff->property); |
| 1043 | REQUEST_SIZE_MATCH(xDeleteDevicePropertyReq); |
| 1044 | return (ProcXDeleteDeviceProperty(client)); |
| 1045 | } |
| 1046 | |
| 1047 | int |
| 1048 | SProcXGetDeviceProperty(ClientPtr client) |
| 1049 | { |
| 1050 | REQUEST(xGetDevicePropertyReq); |
| 1051 | |
| 1052 | swaps(&stuff->length); |
| 1053 | swapl(&stuff->property); |
| 1054 | swapl(&stuff->type); |
| 1055 | swapl(&stuff->longOffset); |
| 1056 | swapl(&stuff->longLength); |
| 1057 | REQUEST_SIZE_MATCH(xGetDevicePropertyReq); |
| 1058 | return (ProcXGetDeviceProperty(client)); |
| 1059 | } |
| 1060 | |
| 1061 | /* Reply swapping */ |
| 1062 | |
| 1063 | void |
| 1064 | SRepXListDeviceProperties(ClientPtr client, int size, |
| 1065 | xListDevicePropertiesReply * rep) |
| 1066 | { |
| 1067 | swaps(&rep->sequenceNumber); |
| 1068 | swapl(&rep->length); |
| 1069 | swaps(&rep->nAtoms); |
| 1070 | /* properties will be swapped later, see ProcXListDeviceProperties */ |
| 1071 | WriteToClient(client, size, rep); |
| 1072 | } |
| 1073 | |
| 1074 | void |
| 1075 | SRepXGetDeviceProperty(ClientPtr client, int size, |
| 1076 | xGetDevicePropertyReply * rep) |
| 1077 | { |
| 1078 | swaps(&rep->sequenceNumber); |
| 1079 | swapl(&rep->length); |
| 1080 | swapl(&rep->propertyType); |
| 1081 | swapl(&rep->bytesAfter); |
| 1082 | swapl(&rep->nItems); |
| 1083 | /* data will be swapped, see ProcXGetDeviceProperty */ |
| 1084 | WriteToClient(client, size, rep); |
| 1085 | } |
| 1086 | |
| 1087 | /* XI2 Request/reply handling */ |
| 1088 | int |
| 1089 | ProcXIListProperties(ClientPtr client) |
| 1090 | { |
| 1091 | Atom *atoms; |
| 1092 | xXIListPropertiesReply rep; |
| 1093 | int natoms; |
| 1094 | DeviceIntPtr dev; |
| 1095 | int rc = Success; |
| 1096 | |
| 1097 | REQUEST(xXIListPropertiesReq); |
| 1098 | REQUEST_SIZE_MATCH(xXIListPropertiesReq); |
| 1099 | |
| 1100 | rc = dixLookupDevice(&dev, stuff->deviceid, client, DixListPropAccess); |
| 1101 | if (rc != Success) |
| 1102 | return rc; |
| 1103 | |
| 1104 | rc = list_atoms(dev, &natoms, &atoms); |
| 1105 | if (rc != Success) |
| 1106 | return rc; |
| 1107 | |
| 1108 | rep = (xXIListPropertiesReply) { |
| 1109 | .repType = X_Reply, |
| 1110 | .RepType = X_XIListProperties, |
| 1111 | .sequenceNumber = client->sequence, |
| 1112 | .length = natoms, |
| 1113 | .num_properties = natoms |
| 1114 | }; |
| 1115 | |
| 1116 | WriteReplyToClient(client, sizeof(xXIListPropertiesReply), &rep); |
| 1117 | if (natoms) { |
| 1118 | client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write; |
| 1119 | WriteSwappedDataToClient(client, natoms * sizeof(Atom), atoms); |
| 1120 | free(atoms); |
| 1121 | } |
| 1122 | return rc; |
| 1123 | } |
| 1124 | |
| 1125 | int |
| 1126 | ProcXIChangeProperty(ClientPtr client) |
| 1127 | { |
| 1128 | int rc; |
| 1129 | DeviceIntPtr dev; |
| 1130 | int totalSize; |
| 1131 | unsigned long len; |
| 1132 | |
| 1133 | REQUEST(xXIChangePropertyReq); |
| 1134 | REQUEST_AT_LEAST_SIZE(xXIChangePropertyReq); |
| 1135 | UpdateCurrentTime(); |
| 1136 | |
| 1137 | rc = dixLookupDevice(&dev, stuff->deviceid, client, DixSetPropAccess); |
| 1138 | if (rc != Success) |
| 1139 | return rc; |
| 1140 | |
| 1141 | rc = check_change_property(client, stuff->property, stuff->type, |
| 1142 | stuff->format, stuff->mode, stuff->num_items); |
| 1143 | len = stuff->num_items; |
| 1144 | if (len > bytes_to_int32(0xffffffff - sizeof(xXIChangePropertyReq))) |
| 1145 | return BadLength; |
| 1146 | |
| 1147 | totalSize = len * (stuff->format / 8); |
| 1148 | REQUEST_FIXED_SIZE(xXIChangePropertyReq, totalSize); |
| 1149 | |
| 1150 | rc = change_property(client, dev, stuff->property, stuff->type, |
| 1151 | stuff->format, stuff->mode, len, (void *) &stuff[1]); |
| 1152 | return rc; |
| 1153 | } |
| 1154 | |
| 1155 | int |
| 1156 | ProcXIDeleteProperty(ClientPtr client) |
| 1157 | { |
| 1158 | DeviceIntPtr dev; |
| 1159 | int rc; |
| 1160 | |
| 1161 | REQUEST(xXIDeletePropertyReq); |
| 1162 | |
| 1163 | REQUEST_SIZE_MATCH(xXIDeletePropertyReq); |
| 1164 | UpdateCurrentTime(); |
| 1165 | rc = dixLookupDevice(&dev, stuff->deviceid, client, DixSetPropAccess); |
| 1166 | if (rc != Success) |
| 1167 | return rc; |
| 1168 | |
| 1169 | if (!ValidAtom(stuff->property)) { |
| 1170 | client->errorValue = stuff->property; |
| 1171 | return BadAtom; |
| 1172 | } |
| 1173 | |
| 1174 | rc = XIDeleteDeviceProperty(dev, stuff->property, TRUE); |
| 1175 | return rc; |
| 1176 | } |
| 1177 | |
| 1178 | int |
| 1179 | ProcXIGetProperty(ClientPtr client) |
| 1180 | { |
| 1181 | REQUEST(xXIGetPropertyReq); |
| 1182 | DeviceIntPtr dev; |
| 1183 | xXIGetPropertyReply reply; |
| 1184 | int length; |
| 1185 | int rc, format, nitems, bytes_after; |
| 1186 | char *data; |
| 1187 | Atom type; |
| 1188 | |
| 1189 | REQUEST_SIZE_MATCH(xXIGetPropertyReq); |
| 1190 | if (stuff->delete) |
| 1191 | UpdateCurrentTime(); |
| 1192 | rc = dixLookupDevice(&dev, stuff->deviceid, client, |
| 1193 | stuff->delete ? DixSetPropAccess : DixGetPropAccess); |
| 1194 | if (rc != Success) |
| 1195 | return rc; |
| 1196 | |
| 1197 | rc = get_property(client, dev, stuff->property, stuff->type, |
| 1198 | stuff->delete, stuff->offset, stuff->len, |
| 1199 | &bytes_after, &type, &format, &nitems, &length, &data); |
| 1200 | |
| 1201 | if (rc != Success) |
| 1202 | return rc; |
| 1203 | |
| 1204 | reply = (xXIGetPropertyReply) { |
| 1205 | .repType = X_Reply, |
| 1206 | .RepType = X_XIGetProperty, |
| 1207 | .sequenceNumber = client->sequence, |
| 1208 | .length = bytes_to_int32(length), |
| 1209 | .type = type, |
| 1210 | .bytes_after = bytes_after, |
| 1211 | .num_items = nitems, |
| 1212 | .format = format |
| 1213 | }; |
| 1214 | |
| 1215 | if (length && stuff->delete && (reply.bytes_after == 0)) |
| 1216 | send_property_event(dev, stuff->property, XIPropertyDeleted); |
| 1217 | |
| 1218 | WriteReplyToClient(client, sizeof(xXIGetPropertyReply), &reply); |
| 1219 | |
| 1220 | if (length) { |
| 1221 | switch (reply.format) { |
| 1222 | case 32: |
| 1223 | client->pSwapReplyFunc = (ReplySwapPtr) CopySwap32Write; |
| 1224 | break; |
| 1225 | case 16: |
| 1226 | client->pSwapReplyFunc = (ReplySwapPtr) CopySwap16Write; |
| 1227 | break; |
| 1228 | default: |
| 1229 | client->pSwapReplyFunc = (ReplySwapPtr) WriteToClient; |
| 1230 | break; |
| 1231 | } |
| 1232 | WriteSwappedDataToClient(client, length, data); |
| 1233 | } |
| 1234 | |
| 1235 | /* delete the Property */ |
| 1236 | if (stuff->delete && (reply.bytes_after == 0)) { |
| 1237 | XIPropertyPtr prop, *prev; |
| 1238 | |
| 1239 | for (prev = &dev->properties.properties; (prop = *prev); |
| 1240 | prev = &prop->next) { |
| 1241 | if (prop->propertyName == stuff->property) { |
| 1242 | *prev = prop->next; |
| 1243 | XIDestroyDeviceProperty(prop); |
| 1244 | break; |
| 1245 | } |
| 1246 | } |
| 1247 | } |
| 1248 | |
| 1249 | return Success; |
| 1250 | } |
| 1251 | |
| 1252 | int |
| 1253 | SProcXIListProperties(ClientPtr client) |
| 1254 | { |
| 1255 | REQUEST(xXIListPropertiesReq); |
| 1256 | |
| 1257 | swaps(&stuff->length); |
| 1258 | swaps(&stuff->deviceid); |
| 1259 | |
| 1260 | REQUEST_SIZE_MATCH(xXIListPropertiesReq); |
| 1261 | return (ProcXIListProperties(client)); |
| 1262 | } |
| 1263 | |
| 1264 | int |
| 1265 | SProcXIChangeProperty(ClientPtr client) |
| 1266 | { |
| 1267 | REQUEST(xXIChangePropertyReq); |
| 1268 | |
| 1269 | REQUEST_AT_LEAST_SIZE(xXIChangePropertyReq); |
| 1270 | swaps(&stuff->length); |
| 1271 | swaps(&stuff->deviceid); |
| 1272 | swapl(&stuff->property); |
| 1273 | swapl(&stuff->type); |
| 1274 | swapl(&stuff->num_items); |
| 1275 | return (ProcXIChangeProperty(client)); |
| 1276 | } |
| 1277 | |
| 1278 | int |
| 1279 | SProcXIDeleteProperty(ClientPtr client) |
| 1280 | { |
| 1281 | REQUEST(xXIDeletePropertyReq); |
| 1282 | |
| 1283 | swaps(&stuff->length); |
| 1284 | swaps(&stuff->deviceid); |
| 1285 | swapl(&stuff->property); |
| 1286 | REQUEST_SIZE_MATCH(xXIDeletePropertyReq); |
| 1287 | return (ProcXIDeleteProperty(client)); |
| 1288 | } |
| 1289 | |
| 1290 | int |
| 1291 | SProcXIGetProperty(ClientPtr client) |
| 1292 | { |
| 1293 | REQUEST(xXIGetPropertyReq); |
| 1294 | |
| 1295 | swaps(&stuff->length); |
| 1296 | swaps(&stuff->deviceid); |
| 1297 | swapl(&stuff->property); |
| 1298 | swapl(&stuff->type); |
| 1299 | swapl(&stuff->offset); |
| 1300 | swapl(&stuff->len); |
| 1301 | REQUEST_SIZE_MATCH(xXIGetPropertyReq); |
| 1302 | return (ProcXIGetProperty(client)); |
| 1303 | } |
| 1304 | |
| 1305 | void |
| 1306 | SRepXIListProperties(ClientPtr client, int size, xXIListPropertiesReply * rep) |
| 1307 | { |
| 1308 | swaps(&rep->sequenceNumber); |
| 1309 | swapl(&rep->length); |
| 1310 | swaps(&rep->num_properties); |
| 1311 | /* properties will be swapped later, see ProcXIListProperties */ |
| 1312 | WriteToClient(client, size, rep); |
| 1313 | } |
| 1314 | |
| 1315 | void |
| 1316 | SRepXIGetProperty(ClientPtr client, int size, xXIGetPropertyReply * rep) |
| 1317 | { |
| 1318 | swaps(&rep->sequenceNumber); |
| 1319 | swapl(&rep->length); |
| 1320 | swapl(&rep->type); |
| 1321 | swapl(&rep->bytes_after); |
| 1322 | swapl(&rep->num_items); |
| 1323 | /* data will be swapped, see ProcXIGetProperty */ |
| 1324 | WriteToClient(client, size, rep); |
| 1325 | } |