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a09e091a JB |
1 | /* |
2 | * Copyright © 2006 Nokia Corporation | |
3 | * Copyright © 2006-2007 Daniel Stone | |
4 | * Copyright © 2008 Red Hat, Inc. | |
5 | * Copyright © 2011 The Chromium Authors | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a | |
8 | * copy of this software and associated documentation files (the "Software"), | |
9 | * to deal in the Software without restriction, including without limitation | |
10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
11 | * and/or sell copies of the Software, and to permit persons to whom the | |
12 | * Software is furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the next | |
15 | * paragraph) shall be included in all copies or substantial portions of the | |
16 | * Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
21 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
23 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
24 | * DEALINGS IN THE SOFTWARE. | |
25 | * | |
26 | * Authors: Daniel Stone <daniel@fooishbar.org> | |
27 | * Peter Hutterer <peter.hutterer@who-t.net> | |
28 | */ | |
29 | ||
30 | #ifdef HAVE_DIX_CONFIG_H | |
31 | #include <dix-config.h> | |
32 | #endif | |
33 | ||
34 | #include <X11/X.h> | |
35 | #include <X11/keysym.h> | |
36 | #include <X11/Xproto.h> | |
37 | #include <math.h> | |
38 | #include <limits.h> | |
39 | ||
40 | #include "misc.h" | |
41 | #include "resource.h" | |
42 | #include "inputstr.h" | |
43 | #include "scrnintstr.h" | |
44 | #include "cursorstr.h" | |
45 | #include "dixstruct.h" | |
46 | #include "globals.h" | |
47 | #include "dixevents.h" | |
48 | #include "mipointer.h" | |
49 | #include "eventstr.h" | |
50 | #include "eventconvert.h" | |
51 | #include "inpututils.h" | |
52 | #include "mi.h" | |
53 | #include "windowstr.h" | |
54 | ||
55 | #include <X11/extensions/XKBproto.h> | |
56 | #include "xkbsrv.h" | |
57 | ||
58 | #ifdef PANORAMIX | |
59 | #include "panoramiX.h" | |
60 | #include "panoramiXsrv.h" | |
61 | #endif | |
62 | ||
63 | #include <X11/extensions/XI.h> | |
64 | #include <X11/extensions/XI2.h> | |
65 | #include <X11/extensions/XIproto.h> | |
66 | #include <pixman.h> | |
67 | #include "exglobals.h" | |
68 | #include "exevents.h" | |
69 | #include "extnsionst.h" | |
70 | #include "listdev.h" /* for sizing up DeviceClassesChangedEvent */ | |
71 | ||
72 | #if XSERVER_DTRACE | |
73 | #include <sys/types.h> | |
74 | typedef const char *string; | |
75 | #include <Xserver-dtrace.h> | |
76 | #endif | |
77 | ||
78 | /* Number of motion history events to store. */ | |
79 | #define MOTION_HISTORY_SIZE 256 | |
80 | ||
81 | /** | |
82 | * InputEventList is the storage for input events generated by | |
83 | * QueuePointerEvents, QueueKeyboardEvents, and QueueProximityEvents. | |
84 | * This list is allocated on startup by the DIX. | |
85 | */ | |
86 | InternalEvent *InputEventList = NULL; | |
87 | ||
88 | /** | |
89 | * Pick some arbitrary size for Xi motion history. | |
90 | */ | |
91 | int | |
92 | GetMotionHistorySize(void) | |
93 | { | |
94 | return MOTION_HISTORY_SIZE; | |
95 | } | |
96 | ||
97 | void | |
98 | set_button_down(DeviceIntPtr pDev, int button, int type) | |
99 | { | |
100 | if (type == BUTTON_PROCESSED) | |
101 | SetBit(pDev->button->down, button); | |
102 | else | |
103 | SetBit(pDev->button->postdown, button); | |
104 | } | |
105 | ||
106 | void | |
107 | set_button_up(DeviceIntPtr pDev, int button, int type) | |
108 | { | |
109 | if (type == BUTTON_PROCESSED) | |
110 | ClearBit(pDev->button->down, button); | |
111 | else | |
112 | ClearBit(pDev->button->postdown, button); | |
113 | } | |
114 | ||
115 | Bool | |
116 | button_is_down(DeviceIntPtr pDev, int button, int type) | |
117 | { | |
118 | Bool ret = FALSE; | |
119 | ||
120 | if (type & BUTTON_PROCESSED) | |
121 | ret = ret || BitIsOn(pDev->button->down, button); | |
122 | if (type & BUTTON_POSTED) | |
123 | ret = ret || BitIsOn(pDev->button->postdown, button); | |
124 | ||
125 | return ret; | |
126 | } | |
127 | ||
128 | void | |
129 | set_key_down(DeviceIntPtr pDev, int key_code, int type) | |
130 | { | |
131 | if (type == KEY_PROCESSED) | |
132 | SetBit(pDev->key->down, key_code); | |
133 | else | |
134 | SetBit(pDev->key->postdown, key_code); | |
135 | } | |
136 | ||
137 | void | |
138 | set_key_up(DeviceIntPtr pDev, int key_code, int type) | |
139 | { | |
140 | if (type == KEY_PROCESSED) | |
141 | ClearBit(pDev->key->down, key_code); | |
142 | else | |
143 | ClearBit(pDev->key->postdown, key_code); | |
144 | } | |
145 | ||
146 | Bool | |
147 | key_is_down(DeviceIntPtr pDev, int key_code, int type) | |
148 | { | |
149 | Bool ret = FALSE; | |
150 | ||
151 | if (type & KEY_PROCESSED) | |
152 | ret = ret || BitIsOn(pDev->key->down, key_code); | |
153 | if (type & KEY_POSTED) | |
154 | ret = ret || BitIsOn(pDev->key->postdown, key_code); | |
155 | ||
156 | return ret; | |
157 | } | |
158 | ||
159 | static Bool | |
160 | key_autorepeats(DeviceIntPtr pDev, int key_code) | |
161 | { | |
162 | return ! !(pDev->kbdfeed->ctrl.autoRepeats[key_code >> 3] & | |
163 | (1 << (key_code & 7))); | |
164 | } | |
165 | ||
166 | static void | |
167 | init_touch_ownership(DeviceIntPtr dev, TouchOwnershipEvent *event, Time ms) | |
168 | { | |
169 | memset(event, 0, sizeof(TouchOwnershipEvent)); | |
170 | event->header = ET_Internal; | |
171 | event->type = ET_TouchOwnership; | |
172 | event->length = sizeof(TouchOwnershipEvent); | |
173 | event->time = ms; | |
174 | event->deviceid = dev->id; | |
175 | } | |
176 | ||
177 | static void | |
178 | init_raw(DeviceIntPtr dev, RawDeviceEvent *event, Time ms, int type, int detail) | |
179 | { | |
180 | memset(event, 0, sizeof(RawDeviceEvent)); | |
181 | event->header = ET_Internal; | |
182 | event->length = sizeof(RawDeviceEvent); | |
183 | switch (type) { | |
184 | case MotionNotify: | |
185 | event->type = ET_RawMotion; | |
186 | break; | |
187 | case ButtonPress: | |
188 | event->type = ET_RawButtonPress; | |
189 | break; | |
190 | case ButtonRelease: | |
191 | event->type = ET_RawButtonRelease; | |
192 | break; | |
193 | case KeyPress: | |
194 | event->type = ET_RawKeyPress; | |
195 | break; | |
196 | case KeyRelease: | |
197 | event->type = ET_RawKeyRelease; | |
198 | break; | |
199 | case XI_TouchBegin: | |
200 | event->type = ET_RawTouchBegin; | |
201 | break; | |
202 | case XI_TouchUpdate: | |
203 | event->type = ET_RawTouchUpdate; | |
204 | break; | |
205 | case XI_TouchEnd: | |
206 | event->type = ET_RawTouchEnd; | |
207 | break; | |
208 | } | |
209 | event->time = ms; | |
210 | event->deviceid = dev->id; | |
211 | event->sourceid = dev->id; | |
212 | event->detail.button = detail; | |
213 | } | |
214 | ||
215 | static void | |
216 | set_raw_valuators(RawDeviceEvent *event, ValuatorMask *mask, double *data) | |
217 | { | |
218 | int i; | |
219 | ||
220 | for (i = 0; i < valuator_mask_size(mask); i++) { | |
221 | if (valuator_mask_isset(mask, i)) { | |
222 | SetBit(event->valuators.mask, i); | |
223 | data[i] = valuator_mask_get_double(mask, i); | |
224 | } | |
225 | } | |
226 | } | |
227 | ||
228 | static void | |
229 | set_valuators(DeviceIntPtr dev, DeviceEvent *event, ValuatorMask *mask) | |
230 | { | |
231 | int i; | |
232 | ||
233 | /* Set the data to the previous value for unset absolute axes. The values | |
234 | * may be used when sent as part of an XI 1.x valuator event. */ | |
235 | for (i = 0; i < valuator_mask_size(mask); i++) { | |
236 | if (valuator_mask_isset(mask, i)) { | |
237 | SetBit(event->valuators.mask, i); | |
238 | if (valuator_get_mode(dev, i) == Absolute) | |
239 | SetBit(event->valuators.mode, i); | |
240 | event->valuators.data[i] = valuator_mask_get_double(mask, i); | |
241 | } | |
242 | else | |
243 | event->valuators.data[i] = dev->valuator->axisVal[i]; | |
244 | } | |
245 | } | |
246 | ||
247 | void | |
248 | CreateClassesChangedEvent(InternalEvent *event, | |
249 | DeviceIntPtr master, DeviceIntPtr slave, int flags) | |
250 | { | |
251 | int i; | |
252 | DeviceChangedEvent *dce; | |
253 | CARD32 ms = GetTimeInMillis(); | |
254 | ||
255 | dce = &event->changed_event; | |
256 | memset(dce, 0, sizeof(DeviceChangedEvent)); | |
257 | dce->deviceid = slave->id; | |
258 | dce->masterid = master ? master->id : 0; | |
259 | dce->header = ET_Internal; | |
260 | dce->length = sizeof(DeviceChangedEvent); | |
261 | dce->type = ET_DeviceChanged; | |
262 | dce->time = ms; | |
263 | dce->flags = flags; | |
264 | dce->sourceid = slave->id; | |
265 | ||
266 | if (slave->button) { | |
267 | dce->buttons.num_buttons = slave->button->numButtons; | |
268 | for (i = 0; i < dce->buttons.num_buttons; i++) | |
269 | dce->buttons.names[i] = slave->button->labels[i]; | |
270 | } | |
271 | if (slave->valuator) { | |
272 | dce->num_valuators = slave->valuator->numAxes; | |
273 | for (i = 0; i < dce->num_valuators; i++) { | |
274 | dce->valuators[i].min = slave->valuator->axes[i].min_value; | |
275 | dce->valuators[i].max = slave->valuator->axes[i].max_value; | |
276 | dce->valuators[i].resolution = slave->valuator->axes[i].resolution; | |
277 | dce->valuators[i].mode = slave->valuator->axes[i].mode; | |
278 | dce->valuators[i].name = slave->valuator->axes[i].label; | |
279 | dce->valuators[i].scroll = slave->valuator->axes[i].scroll; | |
280 | dce->valuators[i].value = slave->valuator->axisVal[i]; | |
281 | } | |
282 | } | |
283 | if (slave->key) { | |
284 | dce->keys.min_keycode = slave->key->xkbInfo->desc->min_key_code; | |
285 | dce->keys.max_keycode = slave->key->xkbInfo->desc->max_key_code; | |
286 | } | |
287 | } | |
288 | ||
289 | /** | |
290 | * Rescale the coord between the two axis ranges. | |
291 | */ | |
292 | static double | |
293 | rescaleValuatorAxis(double coord, AxisInfoPtr from, AxisInfoPtr to, | |
294 | double defmin, double defmax) | |
295 | { | |
296 | double fmin = defmin, fmax = defmax; | |
297 | double tmin = defmin, tmax = defmax; | |
298 | ||
299 | if (from && from->min_value < from->max_value) { | |
300 | fmin = from->min_value; | |
301 | fmax = from->max_value + 1; | |
302 | } | |
303 | if (to && to->min_value < to->max_value) { | |
304 | tmin = to->min_value; | |
305 | tmax = to->max_value + 1; | |
306 | } | |
307 | ||
308 | if (fmin == tmin && fmax == tmax) | |
309 | return coord; | |
310 | ||
311 | if (fmax == fmin) /* avoid division by 0 */ | |
312 | return 0.0; | |
313 | ||
314 | return (coord - fmin) * (tmax - tmin) / (fmax - fmin) + tmin; | |
315 | } | |
316 | ||
317 | /** | |
318 | * Update all coordinates when changing to a different SD | |
319 | * to ensure that relative reporting will work as expected | |
320 | * without loss of precision. | |
321 | * | |
322 | * pDev->last.valuators will be in absolute device coordinates after this | |
323 | * function. | |
324 | */ | |
325 | static void | |
326 | updateSlaveDeviceCoords(DeviceIntPtr master, DeviceIntPtr pDev) | |
327 | { | |
328 | int i; | |
329 | DeviceIntPtr lastSlave; | |
330 | ||
331 | /* master->last.valuators[0]/[1] is in desktop-wide coords and the actual | |
332 | * position of the pointer */ | |
333 | pDev->last.valuators[0] = master->last.valuators[0]; | |
334 | pDev->last.valuators[1] = master->last.valuators[1]; | |
335 | ||
336 | if (!pDev->valuator) | |
337 | return; | |
338 | ||
339 | /* scale back to device coordinates */ | |
340 | if (pDev->valuator->numAxes > 0) { | |
341 | pDev->last.valuators[0] = rescaleValuatorAxis(pDev->last.valuators[0], | |
342 | NULL, | |
343 | pDev->valuator->axes + 0, | |
344 | screenInfo.x, | |
345 | screenInfo.width); | |
346 | } | |
347 | if (pDev->valuator->numAxes > 1) { | |
348 | pDev->last.valuators[1] = rescaleValuatorAxis(pDev->last.valuators[1], | |
349 | NULL, | |
350 | pDev->valuator->axes + 1, | |
351 | screenInfo.y, | |
352 | screenInfo.height); | |
353 | } | |
354 | ||
355 | /* calculate the other axis as well based on info from the old | |
356 | * slave-device. If the old slave had less axes than this one, | |
357 | * last.valuators is reset to 0. | |
358 | */ | |
359 | if ((lastSlave = master->last.slave) && lastSlave->valuator) { | |
360 | for (i = 2; i < pDev->valuator->numAxes; i++) { | |
361 | if (i >= lastSlave->valuator->numAxes) { | |
362 | pDev->last.valuators[i] = 0; | |
363 | valuator_mask_set_double(pDev->last.scroll, i, 0); | |
364 | } | |
365 | else { | |
366 | double val = pDev->last.valuators[i]; | |
367 | ||
368 | val = rescaleValuatorAxis(val, lastSlave->valuator->axes + i, | |
369 | pDev->valuator->axes + i, 0, 0); | |
370 | pDev->last.valuators[i] = val; | |
371 | valuator_mask_set_double(pDev->last.scroll, i, val); | |
372 | } | |
373 | } | |
374 | } | |
375 | ||
376 | } | |
377 | ||
378 | /** | |
379 | * Allocate the motion history buffer. | |
380 | */ | |
381 | void | |
382 | AllocateMotionHistory(DeviceIntPtr pDev) | |
383 | { | |
384 | int size; | |
385 | ||
386 | free(pDev->valuator->motion); | |
387 | ||
388 | if (pDev->valuator->numMotionEvents < 1) | |
389 | return; | |
390 | ||
391 | /* An MD must have a motion history size large enough to keep all | |
392 | * potential valuators, plus the respective range of the valuators. | |
393 | * 3 * INT32 for (min_val, max_val, curr_val)) | |
394 | */ | |
395 | if (IsMaster(pDev)) | |
396 | size = sizeof(INT32) * 3 * MAX_VALUATORS; | |
397 | else { | |
398 | ValuatorClassPtr v = pDev->valuator; | |
399 | int numAxes; | |
400 | ||
401 | /* XI1 doesn't understand mixed mode devices */ | |
402 | for (numAxes = 0; numAxes < v->numAxes; numAxes++) | |
403 | if (valuator_get_mode(pDev, numAxes) != valuator_get_mode(pDev, 0)) | |
404 | break; | |
405 | size = sizeof(INT32) * numAxes; | |
406 | } | |
407 | ||
408 | size += sizeof(Time); | |
409 | ||
410 | pDev->valuator->motion = calloc(pDev->valuator->numMotionEvents, size); | |
411 | pDev->valuator->first_motion = 0; | |
412 | pDev->valuator->last_motion = 0; | |
413 | if (!pDev->valuator->motion) | |
414 | ErrorF("[dix] %s: Failed to alloc motion history (%d bytes).\n", | |
415 | pDev->name, size * pDev->valuator->numMotionEvents); | |
416 | } | |
417 | ||
418 | /** | |
419 | * Dump the motion history between start and stop into the supplied buffer. | |
420 | * Only records the event for a given screen in theory, but in practice, we | |
421 | * sort of ignore this. | |
422 | * | |
423 | * If core is set, we only generate x/y, in INT16, scaled to screen coords. | |
424 | */ | |
425 | int | |
426 | GetMotionHistory(DeviceIntPtr pDev, xTimecoord ** buff, unsigned long start, | |
427 | unsigned long stop, ScreenPtr pScreen, BOOL core) | |
428 | { | |
429 | char *ibuff = NULL, *obuff; | |
430 | int i = 0, ret = 0; | |
431 | int j, coord; | |
432 | Time current; | |
433 | ||
434 | /* The size of a single motion event. */ | |
435 | int size; | |
436 | AxisInfo from, *to; /* for scaling */ | |
437 | INT32 *ocbuf, *icbuf; /* pointer to coordinates for copying */ | |
438 | INT16 *corebuf; | |
439 | AxisInfo core_axis = { 0 }; | |
440 | ||
441 | if (!pDev->valuator || !pDev->valuator->numMotionEvents) | |
442 | return 0; | |
443 | ||
444 | if (core && !pScreen) | |
445 | return 0; | |
446 | ||
447 | if (IsMaster(pDev)) | |
448 | size = (sizeof(INT32) * 3 * MAX_VALUATORS) + sizeof(Time); | |
449 | else | |
450 | size = (sizeof(INT32) * pDev->valuator->numAxes) + sizeof(Time); | |
451 | ||
452 | *buff = malloc(size * pDev->valuator->numMotionEvents); | |
453 | if (!(*buff)) | |
454 | return 0; | |
455 | obuff = (char *) *buff; | |
456 | ||
457 | for (i = pDev->valuator->first_motion; | |
458 | i != pDev->valuator->last_motion; | |
459 | i = (i + 1) % pDev->valuator->numMotionEvents) { | |
460 | /* We index the input buffer by which element we're accessing, which | |
461 | * is not monotonic, and the output buffer by how many events we've | |
462 | * written so far. */ | |
463 | ibuff = (char *) pDev->valuator->motion + (i * size); | |
464 | memcpy(¤t, ibuff, sizeof(Time)); | |
465 | ||
466 | if (current > stop) { | |
467 | return ret; | |
468 | } | |
469 | else if (current >= start) { | |
470 | if (core) { | |
471 | memcpy(obuff, ibuff, sizeof(Time)); /* copy timestamp */ | |
472 | ||
473 | icbuf = (INT32 *) (ibuff + sizeof(Time)); | |
474 | corebuf = (INT16 *) (obuff + sizeof(Time)); | |
475 | ||
476 | /* fetch x coordinate + range */ | |
477 | memcpy(&from.min_value, icbuf++, sizeof(INT32)); | |
478 | memcpy(&from.max_value, icbuf++, sizeof(INT32)); | |
479 | memcpy(&coord, icbuf++, sizeof(INT32)); | |
480 | ||
481 | /* scale to screen coords */ | |
482 | to = &core_axis; | |
483 | to->max_value = pScreen->width; | |
484 | coord = | |
485 | rescaleValuatorAxis(coord, &from, to, 0, pScreen->width); | |
486 | ||
487 | memcpy(corebuf, &coord, sizeof(INT16)); | |
488 | corebuf++; | |
489 | ||
490 | /* fetch y coordinate + range */ | |
491 | memcpy(&from.min_value, icbuf++, sizeof(INT32)); | |
492 | memcpy(&from.max_value, icbuf++, sizeof(INT32)); | |
493 | memcpy(&coord, icbuf++, sizeof(INT32)); | |
494 | ||
495 | to->max_value = pScreen->height; | |
496 | coord = | |
497 | rescaleValuatorAxis(coord, &from, to, 0, pScreen->height); | |
498 | memcpy(corebuf, &coord, sizeof(INT16)); | |
499 | ||
500 | } | |
501 | else if (IsMaster(pDev)) { | |
502 | memcpy(obuff, ibuff, sizeof(Time)); /* copy timestamp */ | |
503 | ||
504 | ocbuf = (INT32 *) (obuff + sizeof(Time)); | |
505 | icbuf = (INT32 *) (ibuff + sizeof(Time)); | |
506 | for (j = 0; j < MAX_VALUATORS; j++) { | |
507 | if (j >= pDev->valuator->numAxes) | |
508 | break; | |
509 | ||
510 | /* fetch min/max/coordinate */ | |
511 | memcpy(&from.min_value, icbuf++, sizeof(INT32)); | |
512 | memcpy(&from.max_value, icbuf++, sizeof(INT32)); | |
513 | memcpy(&coord, icbuf++, sizeof(INT32)); | |
514 | ||
515 | to = (j < | |
516 | pDev->valuator->numAxes) ? &pDev->valuator-> | |
517 | axes[j] : NULL; | |
518 | ||
519 | /* x/y scaled to screen if no range is present */ | |
520 | if (j == 0 && (from.max_value < from.min_value)) | |
521 | from.max_value = pScreen->width; | |
522 | else if (j == 1 && (from.max_value < from.min_value)) | |
523 | from.max_value = pScreen->height; | |
524 | ||
525 | /* scale from stored range into current range */ | |
526 | coord = rescaleValuatorAxis(coord, &from, to, 0, 0); | |
527 | memcpy(ocbuf, &coord, sizeof(INT32)); | |
528 | ocbuf++; | |
529 | } | |
530 | } | |
531 | else | |
532 | memcpy(obuff, ibuff, size); | |
533 | ||
534 | /* don't advance by size here. size may be different to the | |
535 | * actually written size if the MD has less valuators than MAX */ | |
536 | if (core) | |
537 | obuff += sizeof(INT32) + sizeof(Time); | |
538 | else | |
539 | obuff += | |
540 | (sizeof(INT32) * pDev->valuator->numAxes) + sizeof(Time); | |
541 | ret++; | |
542 | } | |
543 | } | |
544 | ||
545 | return ret; | |
546 | } | |
547 | ||
548 | /** | |
549 | * Update the motion history for a specific device, with the list of | |
550 | * valuators. | |
551 | * | |
552 | * Layout of the history buffer: | |
553 | * for SDs: [time] [val0] [val1] ... [valn] | |
554 | * for MDs: [time] [min_val0] [max_val0] [val0] [min_val1] ... [valn] | |
555 | * | |
556 | * For events that have some valuators unset: | |
557 | * min_val == max_val == val == 0. | |
558 | */ | |
559 | static void | |
560 | updateMotionHistory(DeviceIntPtr pDev, CARD32 ms, ValuatorMask *mask, | |
561 | double *valuators) | |
562 | { | |
563 | char *buff = (char *) pDev->valuator->motion; | |
564 | ValuatorClassPtr v; | |
565 | int i; | |
566 | ||
567 | if (!pDev->valuator->numMotionEvents) | |
568 | return; | |
569 | ||
570 | v = pDev->valuator; | |
571 | if (IsMaster(pDev)) { | |
572 | buff += ((sizeof(INT32) * 3 * MAX_VALUATORS) + sizeof(CARD32)) * | |
573 | v->last_motion; | |
574 | ||
575 | memcpy(buff, &ms, sizeof(Time)); | |
576 | buff += sizeof(Time); | |
577 | ||
578 | memset(buff, 0, sizeof(INT32) * 3 * MAX_VALUATORS); | |
579 | ||
580 | for (i = 0; i < v->numAxes; i++) { | |
581 | int val; | |
582 | ||
583 | /* XI1 doesn't support mixed mode devices */ | |
584 | if (valuator_get_mode(pDev, i) != valuator_get_mode(pDev, 0)) | |
585 | break; | |
586 | if (valuator_mask_size(mask) <= i || !valuator_mask_isset(mask, i)) { | |
587 | buff += 3 * sizeof(INT32); | |
588 | continue; | |
589 | } | |
590 | memcpy(buff, &v->axes[i].min_value, sizeof(INT32)); | |
591 | buff += sizeof(INT32); | |
592 | memcpy(buff, &v->axes[i].max_value, sizeof(INT32)); | |
593 | buff += sizeof(INT32); | |
594 | val = valuators[i]; | |
595 | memcpy(buff, &val, sizeof(INT32)); | |
596 | buff += sizeof(INT32); | |
597 | } | |
598 | } | |
599 | else { | |
600 | ||
601 | buff += ((sizeof(INT32) * pDev->valuator->numAxes) + sizeof(CARD32)) * | |
602 | pDev->valuator->last_motion; | |
603 | ||
604 | memcpy(buff, &ms, sizeof(Time)); | |
605 | buff += sizeof(Time); | |
606 | ||
607 | memset(buff, 0, sizeof(INT32) * pDev->valuator->numAxes); | |
608 | ||
609 | for (i = 0; i < MAX_VALUATORS; i++) { | |
610 | int val; | |
611 | ||
612 | if (valuator_mask_size(mask) <= i || !valuator_mask_isset(mask, i)) { | |
613 | buff += sizeof(INT32); | |
614 | continue; | |
615 | } | |
616 | val = valuators[i]; | |
617 | memcpy(buff, &val, sizeof(INT32)); | |
618 | buff += sizeof(INT32); | |
619 | } | |
620 | } | |
621 | ||
622 | pDev->valuator->last_motion = (pDev->valuator->last_motion + 1) % | |
623 | pDev->valuator->numMotionEvents; | |
624 | /* If we're wrapping around, just keep the circular buffer going. */ | |
625 | if (pDev->valuator->first_motion == pDev->valuator->last_motion) | |
626 | pDev->valuator->first_motion = (pDev->valuator->first_motion + 1) % | |
627 | pDev->valuator->numMotionEvents; | |
628 | ||
629 | return; | |
630 | } | |
631 | ||
632 | /** | |
633 | * Returns the maximum number of events GetKeyboardEvents | |
634 | * and GetPointerEvents will ever return. | |
635 | * | |
636 | * This MUST be absolutely constant, from init until exit. | |
637 | */ | |
638 | int | |
639 | GetMaximumEventsNum(void) | |
640 | { | |
641 | /* One raw event | |
642 | * One device event | |
643 | * One possible device changed event | |
644 | * Lots of possible separate button scroll events (horiz + vert) | |
645 | * Lots of possible separate raw button scroll events (horiz + vert) | |
646 | */ | |
647 | return 100; | |
648 | } | |
649 | ||
650 | /** | |
651 | * Clip an axis to its bounds, which are declared in the call to | |
652 | * InitValuatorAxisClassStruct. | |
653 | */ | |
654 | static void | |
655 | clipAxis(DeviceIntPtr pDev, int axisNum, double *val) | |
656 | { | |
657 | AxisInfoPtr axis; | |
658 | ||
659 | if (axisNum >= pDev->valuator->numAxes) | |
660 | return; | |
661 | ||
662 | axis = pDev->valuator->axes + axisNum; | |
663 | ||
664 | /* If a value range is defined, clip. If not, do nothing */ | |
665 | if (axis->max_value <= axis->min_value) | |
666 | return; | |
667 | ||
668 | if (*val < axis->min_value) | |
669 | *val = axis->min_value; | |
670 | if (*val > axis->max_value) | |
671 | *val = axis->max_value; | |
672 | } | |
673 | ||
674 | /** | |
675 | * Clip every axis in the list of valuators to its bounds. | |
676 | */ | |
677 | static void | |
678 | clipValuators(DeviceIntPtr pDev, ValuatorMask *mask) | |
679 | { | |
680 | int i; | |
681 | ||
682 | for (i = 0; i < valuator_mask_size(mask); i++) | |
683 | if (valuator_mask_isset(mask, i)) { | |
684 | double val = valuator_mask_get_double(mask, i); | |
685 | ||
686 | clipAxis(pDev, i, &val); | |
687 | valuator_mask_set_double(mask, i, val); | |
688 | } | |
689 | } | |
690 | ||
691 | /** | |
692 | * Create the DCCE event (does not update the master's device state yet, this | |
693 | * is done in the event processing). | |
694 | * Pull in the coordinates from the MD if necessary. | |
695 | * | |
696 | * @param events Pointer to a pre-allocated event array. | |
697 | * @param dev The slave device that generated an event. | |
698 | * @param type Either DEVCHANGE_POINTER_EVENT and/or DEVCHANGE_KEYBOARD_EVENT | |
699 | * @param num_events The current number of events, returns the number of | |
700 | * events if a DCCE was generated. | |
701 | * @return The updated @events pointer. | |
702 | */ | |
703 | InternalEvent * | |
704 | UpdateFromMaster(InternalEvent *events, DeviceIntPtr dev, int type, | |
705 | int *num_events) | |
706 | { | |
707 | DeviceIntPtr master; | |
708 | ||
709 | master = | |
710 | GetMaster(dev, | |
711 | (type & DEVCHANGE_POINTER_EVENT) ? MASTER_POINTER : | |
712 | MASTER_KEYBOARD); | |
713 | ||
714 | if (master && master->last.slave != dev) { | |
715 | CreateClassesChangedEvent(events, master, dev, | |
716 | type | DEVCHANGE_SLAVE_SWITCH); | |
717 | if (IsPointerDevice(master)) { | |
718 | updateSlaveDeviceCoords(master, dev); | |
719 | master->last.numValuators = dev->last.numValuators; | |
720 | } | |
721 | master->last.slave = dev; | |
722 | (*num_events)++; | |
723 | events++; | |
724 | } | |
725 | return events; | |
726 | } | |
727 | ||
728 | /** | |
729 | * Move the device's pointer to the position given in the valuators. | |
730 | * | |
731 | * @param dev The device whose pointer is to be moved. | |
732 | * @param mask Valuator data for this event. | |
733 | */ | |
734 | static void | |
735 | clipAbsolute(DeviceIntPtr dev, ValuatorMask *mask) | |
736 | { | |
737 | int i; | |
738 | ||
739 | for (i = 0; i < valuator_mask_size(mask); i++) { | |
740 | double val; | |
741 | ||
742 | if (!valuator_mask_isset(mask, i)) | |
743 | continue; | |
744 | val = valuator_mask_get_double(mask, i); | |
745 | clipAxis(dev, i, &val); | |
746 | valuator_mask_set_double(mask, i, val); | |
747 | } | |
748 | } | |
749 | ||
750 | static void | |
751 | add_to_scroll_valuator(DeviceIntPtr dev, ValuatorMask *mask, int valuator, double value) | |
752 | { | |
753 | double v; | |
754 | ||
755 | if (!valuator_mask_fetch_double(mask, valuator, &v)) | |
756 | return; | |
757 | ||
758 | /* protect against scrolling overflow. INT_MAX for double, because | |
759 | * we'll eventually write this as 32.32 fixed point */ | |
760 | if ((value > 0 && v > INT_MAX - value) || (value < 0 && v < INT_MIN - value)) { | |
761 | v = 0; | |
762 | ||
763 | /* reset last.scroll to avoid a button storm */ | |
764 | valuator_mask_set_double(dev->last.scroll, valuator, 0); | |
765 | } | |
766 | else | |
767 | v += value; | |
768 | ||
769 | valuator_mask_set_double(mask, valuator, v); | |
770 | } | |
771 | ||
772 | ||
773 | static void | |
774 | scale_for_device_resolution(DeviceIntPtr dev, ValuatorMask *mask) | |
775 | { | |
776 | double y; | |
777 | ValuatorClassPtr v = dev->valuator; | |
778 | int xrange = v->axes[0].max_value - v->axes[0].min_value + 1; | |
779 | int yrange = v->axes[1].max_value - v->axes[1].min_value + 1; | |
780 | ||
781 | double screen_ratio = 1.0 * screenInfo.width/screenInfo.height; | |
782 | double device_ratio = 1.0 * xrange/yrange; | |
783 | double resolution_ratio = 1.0; | |
784 | double ratio; | |
785 | ||
786 | if (!valuator_mask_fetch_double(mask, 1, &y)) | |
787 | return; | |
788 | ||
789 | if (v->axes[0].resolution != 0 && v->axes[1].resolution != 0) | |
790 | resolution_ratio = 1.0 * v->axes[0].resolution/v->axes[1].resolution; | |
791 | ||
792 | ratio = device_ratio/resolution_ratio/screen_ratio; | |
793 | valuator_mask_set_double(mask, 1, y / ratio); | |
794 | } | |
795 | ||
796 | /** | |
797 | * Move the device's pointer by the values given in @valuators. | |
798 | * | |
799 | * @param dev The device whose pointer is to be moved. | |
800 | * @param[in,out] mask Valuator data for this event, modified in-place. | |
801 | */ | |
802 | static void | |
803 | moveRelative(DeviceIntPtr dev, int flags, ValuatorMask *mask) | |
804 | { | |
805 | int i; | |
806 | Bool clip_xy = IsMaster(dev) || !IsFloating(dev); | |
807 | ValuatorClassPtr v = dev->valuator; | |
808 | ||
809 | /* for abs devices in relative mode, we've just scaled wrong, since we | |
810 | mapped the device's shape into the screen shape. Undo this. */ | |
811 | if ((flags & POINTER_ABSOLUTE) == 0 && v && v->numAxes > 1 && | |
812 | v->axes[0].min_value < v->axes[0].max_value && | |
813 | v->axes[1].min_value < v->axes[1].max_value) { | |
814 | scale_for_device_resolution(dev, mask); | |
815 | } | |
816 | ||
817 | /* calc other axes, clip, drop back into valuators */ | |
818 | for (i = 0; i < valuator_mask_size(mask); i++) { | |
819 | double val = dev->last.valuators[i]; | |
820 | ||
821 | if (!valuator_mask_isset(mask, i)) | |
822 | continue; | |
823 | ||
824 | add_to_scroll_valuator(dev, mask, i, val); | |
825 | ||
826 | /* x & y need to go over the limits to cross screens if the SD | |
827 | * isn't currently attached; otherwise, clip to screen bounds. */ | |
828 | if (valuator_get_mode(dev, i) == Absolute && | |
829 | ((i != 0 && i != 1) || clip_xy)) { | |
830 | val = valuator_mask_get_double(mask, i); | |
831 | clipAxis(dev, i, &val); | |
832 | valuator_mask_set_double(mask, i, val); | |
833 | } | |
834 | } | |
835 | } | |
836 | ||
837 | /** | |
838 | * Accelerate the data in valuators based on the device's acceleration scheme. | |
839 | * | |
840 | * @param dev The device which's pointer is to be moved. | |
841 | * @param valuators Valuator mask | |
842 | * @param ms Current time. | |
843 | */ | |
844 | static void | |
845 | accelPointer(DeviceIntPtr dev, ValuatorMask *valuators, CARD32 ms) | |
846 | { | |
847 | if (dev->valuator->accelScheme.AccelSchemeProc) | |
848 | dev->valuator->accelScheme.AccelSchemeProc(dev, valuators, ms); | |
849 | } | |
850 | ||
851 | /** | |
852 | * Scale from absolute screen coordinates to absolute coordinates in the | |
853 | * device's coordinate range. | |
854 | * | |
855 | * @param dev The device to scale for. | |
856 | * @param[in, out] mask The mask in desktop/screen coordinates, modified in place | |
857 | * to contain device coordinate range. | |
858 | * @param flags If POINTER_SCREEN is set, mask is in per-screen coordinates. | |
859 | * Otherwise, mask is in desktop coords. | |
860 | */ | |
861 | static void | |
862 | scale_from_screen(DeviceIntPtr dev, ValuatorMask *mask, int flags) | |
863 | { | |
864 | double scaled; | |
865 | ScreenPtr scr = miPointerGetScreen(dev); | |
866 | ||
867 | if (valuator_mask_isset(mask, 0)) { | |
868 | scaled = valuator_mask_get_double(mask, 0); | |
869 | if (flags & POINTER_SCREEN) | |
870 | scaled += scr->x; | |
871 | scaled = rescaleValuatorAxis(scaled, | |
872 | NULL, dev->valuator->axes + 0, | |
873 | screenInfo.x, screenInfo.width); | |
874 | valuator_mask_set_double(mask, 0, scaled); | |
875 | } | |
876 | if (valuator_mask_isset(mask, 1)) { | |
877 | scaled = valuator_mask_get_double(mask, 1); | |
878 | if (flags & POINTER_SCREEN) | |
879 | scaled += scr->y; | |
880 | scaled = rescaleValuatorAxis(scaled, | |
881 | NULL, dev->valuator->axes + 1, | |
882 | screenInfo.y, screenInfo.height); | |
883 | valuator_mask_set_double(mask, 1, scaled); | |
884 | } | |
885 | } | |
886 | ||
887 | /** | |
888 | * Scale from (absolute) device to screen coordinates here, | |
889 | * | |
890 | * The coordinates provided are always absolute. see fill_pointer_events for | |
891 | * information on coordinate systems. | |
892 | * | |
893 | * @param dev The device to be moved. | |
894 | * @param mask Mask of axis values for this event | |
895 | * @param[out] devx x desktop-wide coordinate in device coordinate system | |
896 | * @param[out] devy y desktop-wide coordinate in device coordinate system | |
897 | * @param[out] screenx x coordinate in desktop coordinate system | |
898 | * @param[out] screeny y coordinate in desktop coordinate system | |
899 | */ | |
900 | static ScreenPtr | |
901 | scale_to_desktop(DeviceIntPtr dev, ValuatorMask *mask, | |
902 | double *devx, double *devy, double *screenx, double *screeny) | |
903 | { | |
904 | ScreenPtr scr = miPointerGetScreen(dev); | |
905 | double x, y; | |
906 | ||
907 | BUG_WARN(dev->valuator && dev->valuator->numAxes < 2); | |
908 | if (!dev->valuator || dev->valuator->numAxes < 2) { | |
909 | /* if we have no axes, last.valuators must be in screen coords | |
910 | * anyway */ | |
911 | *devx = *screenx = dev->last.valuators[0]; | |
912 | *devy = *screeny = dev->last.valuators[1]; | |
913 | return scr; | |
914 | } | |
915 | ||
916 | if (valuator_mask_isset(mask, 0)) | |
917 | x = valuator_mask_get_double(mask, 0); | |
918 | else | |
919 | x = dev->last.valuators[0]; | |
920 | if (valuator_mask_isset(mask, 1)) | |
921 | y = valuator_mask_get_double(mask, 1); | |
922 | else | |
923 | y = dev->last.valuators[1]; | |
924 | ||
925 | /* scale x&y to desktop coordinates */ | |
926 | *screenx = rescaleValuatorAxis(x, dev->valuator->axes + 0, NULL, | |
927 | screenInfo.x, screenInfo.width); | |
928 | *screeny = rescaleValuatorAxis(y, dev->valuator->axes + 1, NULL, | |
929 | screenInfo.y, screenInfo.height); | |
930 | ||
931 | *devx = x; | |
932 | *devy = y; | |
933 | ||
934 | return scr; | |
935 | } | |
936 | ||
937 | /** | |
938 | * If we have HW cursors, this actually moves the visible sprite. If not, we | |
939 | * just do all the screen crossing, etc. | |
940 | * | |
941 | * We use the screen coordinates here, call miPointerSetPosition() and then | |
942 | * scale back into device coordinates (if needed). miPSP will change x/y if | |
943 | * the screen was crossed. | |
944 | * | |
945 | * The coordinates provided are always absolute. The parameter mode | |
946 | * specifies whether it was relative or absolute movement that landed us at | |
947 | * those coordinates. see fill_pointer_events for information on coordinate | |
948 | * systems. | |
949 | * | |
950 | * @param dev The device to be moved. | |
951 | * @param mode Movement mode (Absolute or Relative) | |
952 | * @param[out] mask Mask of axis values for this event, returns the | |
953 | * per-screen device coordinates after confinement | |
954 | * @param[in,out] devx x desktop-wide coordinate in device coordinate system | |
955 | * @param[in,out] devy y desktop-wide coordinate in device coordinate system | |
956 | * @param[in,out] screenx x coordinate in desktop coordinate system | |
957 | * @param[in,out] screeny y coordinate in desktop coordinate system | |
958 | * @param[out] nevents Number of barrier events added to events | |
959 | * @param[in,out] events List of events barrier events are added to | |
960 | */ | |
961 | static ScreenPtr | |
962 | positionSprite(DeviceIntPtr dev, int mode, ValuatorMask *mask, | |
963 | double *devx, double *devy, double *screenx, double *screeny, | |
964 | int *nevents, InternalEvent* events) | |
965 | { | |
966 | ScreenPtr scr = miPointerGetScreen(dev); | |
967 | double tmpx, tmpy; | |
968 | ||
969 | if (!dev->valuator || dev->valuator->numAxes < 2) | |
970 | return scr; | |
971 | ||
972 | tmpx = *screenx; | |
973 | tmpy = *screeny; | |
974 | ||
975 | /* miPointerSetPosition takes care of crossing screens for us, as well as | |
976 | * clipping to the current screen. Coordinates returned are in desktop | |
977 | * coord system */ | |
978 | scr = miPointerSetPosition(dev, mode, screenx, screeny, nevents, events); | |
979 | ||
980 | /* If we were constrained, rescale x/y from the screen coordinates so | |
981 | * the device valuators reflect the correct position. For screen | |
982 | * crossing this doesn't matter much, the coords would be 0 or max. | |
983 | */ | |
984 | if (tmpx != *screenx) | |
985 | *devx = rescaleValuatorAxis(*screenx, NULL, dev->valuator->axes + 0, | |
986 | screenInfo.x, screenInfo.width); | |
987 | ||
988 | if (tmpy != *screeny) | |
989 | *devy = rescaleValuatorAxis(*screeny, NULL, dev->valuator->axes + 1, | |
990 | screenInfo.y, screenInfo.height); | |
991 | ||
992 | /* Recalculate the per-screen device coordinates */ | |
993 | if (valuator_mask_isset(mask, 0)) { | |
994 | double x; | |
995 | ||
996 | x = rescaleValuatorAxis(*screenx - scr->x, NULL, | |
997 | dev->valuator->axes + 0, 0, scr->width); | |
998 | valuator_mask_set_double(mask, 0, x); | |
999 | } | |
1000 | if (valuator_mask_isset(mask, 1)) { | |
1001 | double y; | |
1002 | ||
1003 | y = rescaleValuatorAxis(*screeny - scr->y, NULL, | |
1004 | dev->valuator->axes + 1, 0, scr->height); | |
1005 | valuator_mask_set_double(mask, 1, y); | |
1006 | } | |
1007 | ||
1008 | return scr; | |
1009 | } | |
1010 | ||
1011 | /** | |
1012 | * Update the motion history for the device and (if appropriate) for its | |
1013 | * master device. | |
1014 | * @param dev Slave device to update. | |
1015 | * @param mask Bit mask of valid valuators to append to history. | |
1016 | * @param num Total number of valuators to append to history. | |
1017 | * @param ms Current time | |
1018 | */ | |
1019 | static void | |
1020 | updateHistory(DeviceIntPtr dev, ValuatorMask *mask, CARD32 ms) | |
1021 | { | |
1022 | if (!dev->valuator) | |
1023 | return; | |
1024 | ||
1025 | updateMotionHistory(dev, ms, mask, dev->last.valuators); | |
1026 | if (!IsMaster(dev) && !IsFloating(dev)) { | |
1027 | DeviceIntPtr master = GetMaster(dev, MASTER_POINTER); | |
1028 | ||
1029 | updateMotionHistory(master, ms, mask, dev->last.valuators); | |
1030 | } | |
1031 | } | |
1032 | ||
1033 | static void | |
1034 | queueEventList(DeviceIntPtr device, InternalEvent *events, int nevents) | |
1035 | { | |
1036 | int i; | |
1037 | ||
1038 | for (i = 0; i < nevents; i++) | |
1039 | mieqEnqueue(device, &events[i]); | |
1040 | } | |
1041 | ||
1042 | static void | |
1043 | event_set_root_coordinates(DeviceEvent *event, double x, double y) | |
1044 | { | |
1045 | event->root_x = trunc(x); | |
1046 | event->root_y = trunc(y); | |
1047 | event->root_x_frac = x - trunc(x); | |
1048 | event->root_y_frac = y - trunc(y); | |
1049 | } | |
1050 | ||
1051 | /** | |
1052 | * Generate internal events representing this keyboard event and enqueue | |
1053 | * them on the event queue. | |
1054 | * | |
1055 | * This function is not reentrant. Disable signals before calling. | |
1056 | * | |
1057 | * FIXME: flags for relative/abs motion? | |
1058 | * | |
1059 | * @param device The device to generate the event for | |
1060 | * @param type Event type, one of KeyPress or KeyRelease | |
1061 | * @param keycode Key code of the pressed/released key | |
1062 | * @param mask Valuator mask for valuators present for this event. | |
1063 | * | |
1064 | */ | |
1065 | void | |
1066 | QueueKeyboardEvents(DeviceIntPtr device, int type, | |
1067 | int keycode, const ValuatorMask *mask) | |
1068 | { | |
1069 | int nevents; | |
1070 | ||
1071 | nevents = GetKeyboardEvents(InputEventList, device, type, keycode, mask); | |
1072 | queueEventList(device, InputEventList, nevents); | |
1073 | } | |
1074 | ||
1075 | /** | |
1076 | * Returns a set of InternalEvents for KeyPress/KeyRelease, optionally | |
1077 | * also with valuator events. | |
1078 | * | |
1079 | * The DDX is responsible for allocating the event list in the first | |
1080 | * place via InitEventList(), and for freeing it. | |
1081 | * | |
1082 | * @return the number of events written into events. | |
1083 | */ | |
1084 | int | |
1085 | GetKeyboardEvents(InternalEvent *events, DeviceIntPtr pDev, int type, | |
1086 | int key_code, const ValuatorMask *mask_in) | |
1087 | { | |
1088 | int num_events = 0; | |
1089 | CARD32 ms = 0; | |
1090 | DeviceEvent *event; | |
1091 | RawDeviceEvent *raw; | |
1092 | ValuatorMask mask; | |
1093 | ||
1094 | #if XSERVER_DTRACE | |
1095 | if (XSERVER_INPUT_EVENT_ENABLED()) { | |
1096 | XSERVER_INPUT_EVENT(pDev->id, type, key_code, 0, | |
1097 | mask_in ? mask_in->last_bit + 1 : 0, | |
1098 | mask_in ? mask_in->mask : NULL, | |
1099 | mask_in ? mask_in->valuators : NULL); | |
1100 | } | |
1101 | #endif | |
1102 | ||
1103 | /* refuse events from disabled devices */ | |
1104 | if (!pDev->enabled) | |
1105 | return 0; | |
1106 | ||
1107 | if (!events || !pDev->key || !pDev->focus || !pDev->kbdfeed || | |
1108 | (type != KeyPress && type != KeyRelease) || | |
1109 | (key_code < 8 || key_code > 255)) | |
1110 | return 0; | |
1111 | ||
1112 | if (mask_in && valuator_mask_size(mask_in) > 1) { | |
1113 | ErrorF("[dix] the server does not handle valuator masks with " | |
1114 | "keyboard events. This is a bug. You may fix it.\n"); | |
1115 | } | |
1116 | ||
1117 | num_events = 1; | |
1118 | ||
1119 | events = | |
1120 | UpdateFromMaster(events, pDev, DEVCHANGE_KEYBOARD_EVENT, &num_events); | |
1121 | ||
1122 | /* Handle core repeating, via press/release/press/release. */ | |
1123 | if (type == KeyPress && key_is_down(pDev, key_code, KEY_POSTED)) { | |
1124 | /* If autorepeating is disabled either globally or just for that key, | |
1125 | * or we have a modifier, don't generate a repeat event. */ | |
1126 | if (!pDev->kbdfeed->ctrl.autoRepeat || | |
1127 | !key_autorepeats(pDev, key_code) || | |
1128 | pDev->key->xkbInfo->desc->map->modmap[key_code]) | |
1129 | return 0; | |
1130 | } | |
1131 | ||
1132 | ms = GetTimeInMillis(); | |
1133 | ||
1134 | raw = &events->raw_event; | |
1135 | events++; | |
1136 | num_events++; | |
1137 | ||
1138 | valuator_mask_copy(&mask, mask_in); | |
1139 | ||
1140 | init_raw(pDev, raw, ms, type, key_code); | |
1141 | set_raw_valuators(raw, &mask, raw->valuators.data_raw); | |
1142 | ||
1143 | clipValuators(pDev, &mask); | |
1144 | ||
1145 | set_raw_valuators(raw, &mask, raw->valuators.data); | |
1146 | ||
1147 | event = &events->device_event; | |
1148 | init_device_event(event, pDev, ms); | |
1149 | event->detail.key = key_code; | |
1150 | ||
1151 | if (type == KeyPress) { | |
1152 | event->type = ET_KeyPress; | |
1153 | set_key_down(pDev, key_code, KEY_POSTED); | |
1154 | } | |
1155 | else if (type == KeyRelease) { | |
1156 | event->type = ET_KeyRelease; | |
1157 | set_key_up(pDev, key_code, KEY_POSTED); | |
1158 | } | |
1159 | ||
1160 | clipValuators(pDev, &mask); | |
1161 | ||
1162 | set_valuators(pDev, event, &mask); | |
1163 | ||
1164 | if (!IsFloating(pDev)) { | |
1165 | DeviceIntPtr master = GetMaster(pDev, MASTER_POINTER); | |
1166 | ||
1167 | event_set_root_coordinates(event, | |
1168 | master->last.valuators[0], | |
1169 | master->last.valuators[1]); | |
1170 | } | |
1171 | ||
1172 | return num_events; | |
1173 | } | |
1174 | ||
1175 | /** | |
1176 | * Initialize an event array large enough for num_events arrays. | |
1177 | * This event list is to be passed into GetPointerEvents() and | |
1178 | * GetKeyboardEvents(). | |
1179 | * | |
1180 | * @param num_events Number of elements in list. | |
1181 | */ | |
1182 | InternalEvent * | |
1183 | InitEventList(int num_events) | |
1184 | { | |
1185 | InternalEvent *events = calloc(num_events, sizeof(InternalEvent)); | |
1186 | ||
1187 | return events; | |
1188 | } | |
1189 | ||
1190 | /** | |
1191 | * Free an event list. | |
1192 | * | |
1193 | * @param list The list to be freed. | |
1194 | * @param num_events Number of elements in list. | |
1195 | */ | |
1196 | void | |
1197 | FreeEventList(InternalEvent *list, int num_events) | |
1198 | { | |
1199 | free(list); | |
1200 | } | |
1201 | ||
1202 | /** | |
1203 | * Transform vector x/y according to matrix m and drop the rounded coords | |
1204 | * back into x/y. | |
1205 | */ | |
1206 | static void | |
1207 | transform(struct pixman_f_transform *m, double *x, double *y) | |
1208 | { | |
1209 | struct pixman_f_vector p = {.v = {*x, *y, 1} }; | |
1210 | pixman_f_transform_point(m, &p); | |
1211 | ||
1212 | *x = p.v[0]; | |
1213 | *y = p.v[1]; | |
1214 | } | |
1215 | ||
1216 | static void | |
1217 | transformRelative(DeviceIntPtr dev, ValuatorMask *mask) | |
1218 | { | |
1219 | double x = 0, y = 0; | |
1220 | ||
1221 | valuator_mask_fetch_double(mask, 0, &x); | |
1222 | valuator_mask_fetch_double(mask, 1, &y); | |
1223 | ||
1224 | transform(&dev->relative_transform, &x, &y); | |
1225 | ||
1226 | if (x) | |
1227 | valuator_mask_set_double(mask, 0, x); | |
1228 | else | |
1229 | valuator_mask_unset(mask, 0); | |
1230 | ||
1231 | if (y) | |
1232 | valuator_mask_set_double(mask, 1, y); | |
1233 | else | |
1234 | valuator_mask_unset(mask, 1); | |
1235 | } | |
1236 | ||
1237 | /** | |
1238 | * Apply the device's transformation matrix to the valuator mask and replace | |
1239 | * the scaled values in mask. This transformation only applies to valuators | |
1240 | * 0 and 1, others will be untouched. | |
1241 | * | |
1242 | * @param dev The device the valuators came from | |
1243 | * @param[in,out] mask The valuator mask. | |
1244 | */ | |
1245 | static void | |
1246 | transformAbsolute(DeviceIntPtr dev, ValuatorMask *mask) | |
1247 | { | |
1248 | double x, y, ox, oy; | |
1249 | int has_x, has_y; | |
1250 | ||
1251 | has_x = valuator_mask_fetch_double(mask, 0, &ox); | |
1252 | has_y = valuator_mask_fetch_double(mask, 1, &oy); | |
1253 | ||
1254 | if (!has_x && !has_y) | |
1255 | return; | |
1256 | ||
1257 | if (!has_x || !has_y) { | |
1258 | struct pixman_f_transform invert; | |
1259 | ||
1260 | /* undo transformation from last event */ | |
1261 | ox = dev->last.valuators[0]; | |
1262 | oy = dev->last.valuators[1]; | |
1263 | ||
1264 | pixman_f_transform_invert(&invert, &dev->scale_and_transform); | |
1265 | transform(&invert, &ox, &oy); | |
1266 | ||
1267 | x = ox; | |
1268 | y = oy; | |
1269 | } | |
1270 | ||
1271 | if (valuator_mask_isset(mask, 0)) | |
1272 | ox = x = valuator_mask_get_double(mask, 0); | |
1273 | ||
1274 | if (valuator_mask_isset(mask, 1)) | |
1275 | oy = y = valuator_mask_get_double(mask, 1); | |
1276 | ||
1277 | transform(&dev->scale_and_transform, &x, &y); | |
1278 | ||
1279 | if (valuator_mask_isset(mask, 0) || ox != x) | |
1280 | valuator_mask_set_double(mask, 0, x); | |
1281 | ||
1282 | if (valuator_mask_isset(mask, 1) || oy != y) | |
1283 | valuator_mask_set_double(mask, 1, y); | |
1284 | } | |
1285 | ||
1286 | static void | |
1287 | storeLastValuators(DeviceIntPtr dev, ValuatorMask *mask, | |
1288 | int xaxis, int yaxis, double devx, double devy) | |
1289 | { | |
1290 | int i; | |
1291 | ||
1292 | /* store desktop-wide in last.valuators */ | |
1293 | if (valuator_mask_isset(mask, xaxis)) | |
1294 | dev->last.valuators[0] = devx; | |
1295 | if (valuator_mask_isset(mask, yaxis)) | |
1296 | dev->last.valuators[1] = devy; | |
1297 | ||
1298 | for (i = 0; i < valuator_mask_size(mask); i++) { | |
1299 | if (i == xaxis || i == yaxis) | |
1300 | continue; | |
1301 | ||
1302 | if (valuator_mask_isset(mask, i)) | |
1303 | dev->last.valuators[i] = valuator_mask_get_double(mask, i); | |
1304 | } | |
1305 | ||
1306 | } | |
1307 | ||
1308 | /** | |
1309 | * Generate internal events representing this pointer event and enqueue them | |
1310 | * on the event queue. | |
1311 | * | |
1312 | * This function is not reentrant. Disable signals before calling. | |
1313 | * | |
1314 | * @param device The device to generate the event for | |
1315 | * @param type Event type, one of ButtonPress, ButtonRelease, MotionNotify | |
1316 | * @param buttons Button number of the buttons modified. Must be 0 for | |
1317 | * MotionNotify | |
1318 | * @param flags Event modification flags | |
1319 | * @param mask Valuator mask for valuators present for this event. | |
1320 | */ | |
1321 | void | |
1322 | QueuePointerEvents(DeviceIntPtr device, int type, | |
1323 | int buttons, int flags, const ValuatorMask *mask) | |
1324 | { | |
1325 | int nevents; | |
1326 | ||
1327 | nevents = | |
1328 | GetPointerEvents(InputEventList, device, type, buttons, flags, mask); | |
1329 | queueEventList(device, InputEventList, nevents); | |
1330 | } | |
1331 | ||
1332 | /** | |
1333 | * Helper function for GetPointerEvents, which only generates motion and | |
1334 | * raw motion events for the slave device: does not update the master device. | |
1335 | * | |
1336 | * Should not be called by anyone other than GetPointerEvents. | |
1337 | * | |
1338 | * We use several different coordinate systems and need to switch between | |
1339 | * the three in fill_pointer_events, positionSprite and | |
1340 | * miPointerSetPosition. "desktop" refers to the width/height of all | |
1341 | * screenInfo.screens[n]->width/height added up. "screen" is ScreenRec, not | |
1342 | * output. | |
1343 | * | |
1344 | * Coordinate systems: | |
1345 | * - relative events have a mask_in in relative coordinates, mapped to | |
1346 | * pixels. These events are mapped to the current position±delta. | |
1347 | * - absolute events have a mask_in in absolute device coordinates in | |
1348 | * device-specific range. This range is mapped to the desktop. | |
1349 | * - POINTER_SCREEN absolute events (x86WarpCursor) are in screen-relative | |
1350 | * screen coordinate range. | |
1351 | * - rootx/rooty in events must be be relative to the current screen's | |
1352 | * origin (screen coordinate system) | |
1353 | * - XI2 valuators must be relative to the current screen's origin. On | |
1354 | * the protocol the device min/max range maps to the current screen. | |
1355 | * | |
1356 | * For screen switching we need to get the desktop coordinates for each | |
1357 | * event, then map that to the respective position on each screen and | |
1358 | * position the cursor there. | |
1359 | * The device's last.valuator[] stores the last position in desktop-wide | |
1360 | * coordinates (in device range for slave devices, desktop range for master | |
1361 | * devices). | |
1362 | * | |
1363 | * screen-relative device coordinates requires scaling: A device coordinate | |
1364 | * x/y of range [n..m] that maps to positions Sx/Sy on Screen S must be | |
1365 | * rescaled to match Sx/Sy for [n..m]. In the simplest example, x of (m/2-1) | |
1366 | * is the last coordinate on the first screen and must be rescaled for the | |
1367 | * event to be m. XI2 clients that do their own coordinate mapping would | |
1368 | * otherwise interpret the position of the device elsewere to the cursor. | |
1369 | * However, this scaling leads to losses: | |
1370 | * if we have two ScreenRecs we scale from e.g. [0..44704] (Wacom I4) to | |
1371 | * [0..2048[. that gives us 2047.954 as desktop coord, or the per-screen | |
1372 | * coordinate 1023.954. Scaling that back into the device coordinate range | |
1373 | * gives us 44703. So off by one device unit. It's a bug, but we'll have to | |
1374 | * live with it because with all this scaling, we just cannot win. | |
1375 | * | |
1376 | * @return the number of events written into events. | |
1377 | */ | |
1378 | static int | |
1379 | fill_pointer_events(InternalEvent *events, DeviceIntPtr pDev, int type, | |
1380 | int buttons, CARD32 ms, int flags, | |
1381 | const ValuatorMask *mask_in) | |
1382 | { | |
1383 | int num_events = 1; | |
1384 | DeviceEvent *event; | |
1385 | RawDeviceEvent *raw; | |
1386 | double screenx = 0.0, screeny = 0.0; /* desktop coordinate system */ | |
1387 | double devx = 0.0, devy = 0.0; /* desktop-wide in device coords */ | |
1388 | int sx, sy; /* for POINTER_SCREEN */ | |
1389 | ValuatorMask mask; | |
1390 | ScreenPtr scr; | |
1391 | int num_barrier_events = 0; | |
1392 | ||
1393 | switch (type) { | |
1394 | case MotionNotify: | |
1395 | if (!pDev->valuator) { | |
1396 | ErrorF("[dix] motion events from device %d without valuators\n", | |
1397 | pDev->id); | |
1398 | return 0; | |
1399 | } | |
1400 | if (!mask_in || valuator_mask_num_valuators(mask_in) <= 0) | |
1401 | return 0; | |
1402 | break; | |
1403 | case ButtonPress: | |
1404 | case ButtonRelease: | |
1405 | if (!pDev->button || !buttons) | |
1406 | return 0; | |
1407 | if (mask_in && valuator_mask_size(mask_in) > 0 && !pDev->valuator) { | |
1408 | ErrorF | |
1409 | ("[dix] button event with valuator from device %d without valuators\n", | |
1410 | pDev->id); | |
1411 | return 0; | |
1412 | } | |
1413 | break; | |
1414 | default: | |
1415 | return 0; | |
1416 | } | |
1417 | ||
1418 | valuator_mask_copy(&mask, mask_in); | |
1419 | ||
1420 | if ((flags & POINTER_NORAW) == 0) { | |
1421 | raw = &events->raw_event; | |
1422 | events++; | |
1423 | num_events++; | |
1424 | ||
1425 | init_raw(pDev, raw, ms, type, buttons); | |
1426 | set_raw_valuators(raw, &mask, raw->valuators.data_raw); | |
1427 | } | |
1428 | ||
1429 | /* valuators are in driver-native format (rel or abs) */ | |
1430 | ||
1431 | if (flags & POINTER_ABSOLUTE) { | |
1432 | if (flags & (POINTER_SCREEN | POINTER_DESKTOP)) { /* valuators are in screen/desktop coords */ | |
1433 | sx = valuator_mask_get(&mask, 0); | |
1434 | sy = valuator_mask_get(&mask, 1); | |
1435 | scale_from_screen(pDev, &mask, flags); | |
1436 | } | |
1437 | ||
1438 | transformAbsolute(pDev, &mask); | |
1439 | clipAbsolute(pDev, &mask); | |
1440 | if ((flags & POINTER_NORAW) == 0) | |
1441 | set_raw_valuators(raw, &mask, raw->valuators.data); | |
1442 | } | |
1443 | else { | |
1444 | transformRelative(pDev, &mask); | |
1445 | ||
1446 | if (flags & POINTER_ACCELERATE) | |
1447 | accelPointer(pDev, &mask, ms); | |
1448 | if ((flags & POINTER_NORAW) == 0) | |
1449 | set_raw_valuators(raw, &mask, raw->valuators.data); | |
1450 | ||
1451 | moveRelative(pDev, flags, &mask); | |
1452 | } | |
1453 | ||
1454 | /* valuators are in device coordinate system in absolute coordinates */ | |
1455 | scale_to_desktop(pDev, &mask, &devx, &devy, &screenx, &screeny); | |
1456 | ||
1457 | /* #53037 XWarpPointer's scaling back and forth between screen and | |
1458 | device may leave us with rounding errors. End result is that the | |
1459 | pointer doesn't end up on the pixel it should. | |
1460 | Avoid this by forcing screenx/screeny back to what the input | |
1461 | coordinates were. | |
1462 | */ | |
1463 | if (flags & POINTER_SCREEN) { | |
1464 | scr = miPointerGetScreen(pDev); | |
1465 | screenx = sx + scr->x; | |
1466 | screeny = sy + scr->y; | |
1467 | } | |
1468 | ||
1469 | scr = positionSprite(pDev, (flags & POINTER_ABSOLUTE) ? Absolute : Relative, | |
1470 | &mask, &devx, &devy, &screenx, &screeny, | |
1471 | &num_barrier_events, events); | |
1472 | num_events += num_barrier_events; | |
1473 | events += num_barrier_events; | |
1474 | ||
1475 | /* screenx, screeny are in desktop coordinates, | |
1476 | mask is in device coordinates per-screen (the event data) | |
1477 | devx/devy is in device coordinate desktop-wide */ | |
1478 | updateHistory(pDev, &mask, ms); | |
1479 | ||
1480 | clipValuators(pDev, &mask); | |
1481 | ||
1482 | storeLastValuators(pDev, &mask, 0, 1, devx, devy); | |
1483 | ||
1484 | /* Update the MD's co-ordinates, which are always in desktop space. */ | |
1485 | if (!IsMaster(pDev) && !IsFloating(pDev)) { | |
1486 | DeviceIntPtr master = GetMaster(pDev, MASTER_POINTER); | |
1487 | ||
1488 | master->last.valuators[0] = screenx; | |
1489 | master->last.valuators[1] = screeny; | |
1490 | } | |
1491 | ||
1492 | event = &events->device_event; | |
1493 | init_device_event(event, pDev, ms); | |
1494 | ||
1495 | if (type == MotionNotify) { | |
1496 | event->type = ET_Motion; | |
1497 | event->detail.button = 0; | |
1498 | } | |
1499 | else { | |
1500 | if (type == ButtonPress) { | |
1501 | event->type = ET_ButtonPress; | |
1502 | set_button_down(pDev, buttons, BUTTON_POSTED); | |
1503 | } | |
1504 | else if (type == ButtonRelease) { | |
1505 | event->type = ET_ButtonRelease; | |
1506 | set_button_up(pDev, buttons, BUTTON_POSTED); | |
1507 | } | |
1508 | event->detail.button = buttons; | |
1509 | } | |
1510 | ||
1511 | /* root_x and root_y must be in per-screen co-ordinates */ | |
1512 | event_set_root_coordinates(event, screenx - scr->x, screeny - scr->y); | |
1513 | ||
1514 | if (flags & POINTER_EMULATED) { | |
1515 | raw->flags = XIPointerEmulated; | |
1516 | event->flags = XIPointerEmulated; | |
1517 | } | |
1518 | ||
1519 | set_valuators(pDev, event, &mask); | |
1520 | ||
1521 | return num_events; | |
1522 | } | |
1523 | ||
1524 | /** | |
1525 | * Generate events for each scroll axis that changed between before/after | |
1526 | * for the device. | |
1527 | * | |
1528 | * @param events The pointer to the event list to fill the events | |
1529 | * @param dev The device to generate the events for | |
1530 | * @param type The real type of the event | |
1531 | * @param axis The axis number to generate events for | |
1532 | * @param mask State before this event in absolute coords | |
1533 | * @param[in,out] last Last scroll state posted in absolute coords (modified | |
1534 | * in-place) | |
1535 | * @param ms Current time in ms | |
1536 | * @param max_events Max number of events to be generated | |
1537 | * @return The number of events generated | |
1538 | */ | |
1539 | static int | |
1540 | emulate_scroll_button_events(InternalEvent *events, | |
1541 | DeviceIntPtr dev, | |
1542 | int type, | |
1543 | int axis, | |
1544 | const ValuatorMask *mask, | |
1545 | ValuatorMask *last, CARD32 ms, int max_events) | |
1546 | { | |
1547 | AxisInfoPtr ax; | |
1548 | double delta; | |
1549 | double incr; | |
1550 | int num_events = 0; | |
1551 | double total; | |
1552 | int b; | |
1553 | int flags = 0; | |
1554 | ||
1555 | if (dev->valuator->axes[axis].scroll.type == SCROLL_TYPE_NONE) | |
1556 | return 0; | |
1557 | ||
1558 | if (!valuator_mask_isset(mask, axis)) | |
1559 | return 0; | |
1560 | ||
1561 | ax = &dev->valuator->axes[axis]; | |
1562 | incr = ax->scroll.increment; | |
1563 | ||
1564 | if (type != ButtonPress && type != ButtonRelease) | |
1565 | flags |= POINTER_EMULATED; | |
1566 | ||
1567 | if (!valuator_mask_isset(last, axis)) | |
1568 | valuator_mask_set_double(last, axis, 0); | |
1569 | ||
1570 | delta = | |
1571 | valuator_mask_get_double(mask, axis) - valuator_mask_get_double(last, | |
1572 | axis); | |
1573 | total = delta; | |
1574 | b = (ax->scroll.type == SCROLL_TYPE_VERTICAL) ? 5 : 7; | |
1575 | ||
1576 | if ((incr > 0 && delta < 0) || (incr < 0 && delta > 0)) | |
1577 | b--; /* we're scrolling up or left → button 4 or 6 */ | |
1578 | ||
1579 | while (fabs(delta) >= fabs(incr)) { | |
1580 | int nev_tmp; | |
1581 | ||
1582 | if (delta > 0) | |
1583 | delta -= fabs(incr); | |
1584 | else if (delta < 0) | |
1585 | delta += fabs(incr); | |
1586 | ||
1587 | /* fill_pointer_events() generates four events: one normal and one raw | |
1588 | * event for button press and button release. | |
1589 | * We may get a bigger scroll delta than we can generate events | |
1590 | * for. In that case, we keep decreasing delta, but skip events. | |
1591 | */ | |
1592 | if (num_events + 4 < max_events) { | |
1593 | if (type != ButtonRelease) { | |
1594 | nev_tmp = fill_pointer_events(events, dev, ButtonPress, b, ms, | |
1595 | flags, NULL); | |
1596 | events += nev_tmp; | |
1597 | num_events += nev_tmp; | |
1598 | } | |
1599 | if (type != ButtonPress) { | |
1600 | nev_tmp = fill_pointer_events(events, dev, ButtonRelease, b, ms, | |
1601 | flags, NULL); | |
1602 | events += nev_tmp; | |
1603 | num_events += nev_tmp; | |
1604 | } | |
1605 | } | |
1606 | } | |
1607 | ||
1608 | /* We emulated, update last.scroll */ | |
1609 | if (total != delta) { | |
1610 | total -= delta; | |
1611 | valuator_mask_set_double(last, axis, | |
1612 | valuator_mask_get_double(last, axis) + total); | |
1613 | } | |
1614 | ||
1615 | return num_events; | |
1616 | } | |
1617 | ||
1618 | ||
1619 | /** | |
1620 | * Generate a complete series of InternalEvents (filled into the EventList) | |
1621 | * representing pointer motion, or button presses. If the device is a slave | |
1622 | * device, also potentially generate a DeviceClassesChangedEvent to update | |
1623 | * the master device. | |
1624 | * | |
1625 | * events is not NULL-terminated; the return value is the number of events. | |
1626 | * The DDX is responsible for allocating the event structure in the first | |
1627 | * place via InitEventList() and GetMaximumEventsNum(), and for freeing it. | |
1628 | * | |
1629 | * In the generated events rootX/Y will be in absolute screen coords and | |
1630 | * the valuator information in the absolute or relative device coords. | |
1631 | * | |
1632 | * last.valuators[x] of the device is always in absolute device coords. | |
1633 | * last.valuators[x] of the master device is in absolute screen coords. | |
1634 | * | |
1635 | * master->last.valuators[x] for x > 2 is undefined. | |
1636 | */ | |
1637 | int | |
1638 | GetPointerEvents(InternalEvent *events, DeviceIntPtr pDev, int type, | |
1639 | int buttons, int flags, const ValuatorMask *mask_in) | |
1640 | { | |
1641 | CARD32 ms = GetTimeInMillis(); | |
1642 | int num_events = 0, nev_tmp; | |
1643 | ValuatorMask mask; | |
1644 | ValuatorMask scroll; | |
1645 | int i; | |
1646 | int realtype = type; | |
1647 | ||
1648 | #if XSERVER_DTRACE | |
1649 | if (XSERVER_INPUT_EVENT_ENABLED()) { | |
1650 | XSERVER_INPUT_EVENT(pDev->id, type, buttons, flags, | |
1651 | mask_in ? mask_in->last_bit + 1 : 0, | |
1652 | mask_in ? mask_in->mask : NULL, | |
1653 | mask_in ? mask_in->valuators : NULL); | |
1654 | } | |
1655 | #endif | |
1656 | ||
1657 | BUG_RETURN_VAL(buttons >= MAX_BUTTONS, 0); | |
1658 | ||
1659 | /* refuse events from disabled devices */ | |
1660 | if (!pDev->enabled) | |
1661 | return 0; | |
1662 | ||
1663 | if (!miPointerGetScreen(pDev)) | |
1664 | return 0; | |
1665 | ||
1666 | events = UpdateFromMaster(events, pDev, DEVCHANGE_POINTER_EVENT, | |
1667 | &num_events); | |
1668 | ||
1669 | valuator_mask_copy(&mask, mask_in); | |
1670 | ||
1671 | /* Turn a scroll button press into a smooth-scrolling event if | |
1672 | * necessary. This only needs to cater for the XIScrollFlagPreferred | |
1673 | * axis (if more than one scrolling axis is present) */ | |
1674 | if (type == ButtonPress) { | |
1675 | double adj; | |
1676 | int axis; | |
1677 | int h_scroll_axis = -1; | |
1678 | int v_scroll_axis = -1; | |
1679 | ||
1680 | if (pDev->valuator) { | |
1681 | h_scroll_axis = pDev->valuator->h_scroll_axis; | |
1682 | v_scroll_axis = pDev->valuator->v_scroll_axis; | |
1683 | } | |
1684 | ||
1685 | /* Up is negative on valuators, down positive */ | |
1686 | switch (buttons) { | |
1687 | case 4: | |
1688 | adj = -1.0; | |
1689 | axis = v_scroll_axis; | |
1690 | break; | |
1691 | case 5: | |
1692 | adj = 1.0; | |
1693 | axis = v_scroll_axis; | |
1694 | break; | |
1695 | case 6: | |
1696 | adj = -1.0; | |
1697 | axis = h_scroll_axis; | |
1698 | break; | |
1699 | case 7: | |
1700 | adj = 1.0; | |
1701 | axis = h_scroll_axis; | |
1702 | break; | |
1703 | default: | |
1704 | adj = 0.0; | |
1705 | axis = -1; | |
1706 | break; | |
1707 | } | |
1708 | ||
1709 | if (adj != 0.0 && axis != -1) { | |
1710 | adj *= pDev->valuator->axes[axis].scroll.increment; | |
1711 | if (!valuator_mask_isset(&mask, axis)) | |
1712 | valuator_mask_set(&mask, axis, 0); | |
1713 | add_to_scroll_valuator(pDev, &mask, axis, adj); | |
1714 | type = MotionNotify; | |
1715 | buttons = 0; | |
1716 | flags |= POINTER_EMULATED; | |
1717 | } | |
1718 | } | |
1719 | ||
1720 | /* First fill out the original event set, with smooth-scrolling axes. */ | |
1721 | nev_tmp = fill_pointer_events(events, pDev, type, buttons, ms, flags, | |
1722 | &mask); | |
1723 | events += nev_tmp; | |
1724 | num_events += nev_tmp; | |
1725 | ||
1726 | valuator_mask_zero(&scroll); | |
1727 | ||
1728 | /* Now turn the smooth-scrolling axes back into emulated button presses | |
1729 | * for legacy clients, based on the integer delta between before and now */ | |
1730 | for (i = 0; i < valuator_mask_size(&mask); i++) { | |
1731 | if ( !pDev->valuator || (i >= pDev->valuator->numAxes)) | |
1732 | break; | |
1733 | ||
1734 | if (!valuator_mask_isset(&mask, i)) | |
1735 | continue; | |
1736 | ||
1737 | valuator_mask_set_double(&scroll, i, pDev->last.valuators[i]); | |
1738 | ||
1739 | nev_tmp = | |
1740 | emulate_scroll_button_events(events, pDev, realtype, i, &scroll, | |
1741 | pDev->last.scroll, ms, | |
1742 | GetMaximumEventsNum() - num_events); | |
1743 | events += nev_tmp; | |
1744 | num_events += nev_tmp; | |
1745 | } | |
1746 | ||
1747 | return num_events; | |
1748 | } | |
1749 | ||
1750 | /** | |
1751 | * Generate internal events representing this proximity event and enqueue | |
1752 | * them on the event queue. | |
1753 | * | |
1754 | * This function is not reentrant. Disable signals before calling. | |
1755 | * | |
1756 | * @param device The device to generate the event for | |
1757 | * @param type Event type, one of ProximityIn or ProximityOut | |
1758 | * @param keycode Key code of the pressed/released key | |
1759 | * @param mask Valuator mask for valuators present for this event. | |
1760 | * | |
1761 | */ | |
1762 | void | |
1763 | QueueProximityEvents(DeviceIntPtr device, int type, const ValuatorMask *mask) | |
1764 | { | |
1765 | int nevents; | |
1766 | ||
1767 | nevents = GetProximityEvents(InputEventList, device, type, mask); | |
1768 | queueEventList(device, InputEventList, nevents); | |
1769 | } | |
1770 | ||
1771 | /** | |
1772 | * Generate ProximityIn/ProximityOut InternalEvents, accompanied by | |
1773 | * valuators. | |
1774 | * | |
1775 | * The DDX is responsible for allocating the events in the first place via | |
1776 | * InitEventList(), and for freeing it. | |
1777 | * | |
1778 | * @return the number of events written into events. | |
1779 | */ | |
1780 | int | |
1781 | GetProximityEvents(InternalEvent *events, DeviceIntPtr pDev, int type, | |
1782 | const ValuatorMask *mask_in) | |
1783 | { | |
1784 | int num_events = 1, i; | |
1785 | DeviceEvent *event; | |
1786 | ValuatorMask mask; | |
1787 | ||
1788 | #if XSERVER_DTRACE | |
1789 | if (XSERVER_INPUT_EVENT_ENABLED()) { | |
1790 | XSERVER_INPUT_EVENT(pDev->id, type, 0, 0, | |
1791 | mask_in ? mask_in->last_bit + 1 : 0, | |
1792 | mask_in ? mask_in->mask : NULL, | |
1793 | mask_in ? mask_in->valuators : NULL); | |
1794 | } | |
1795 | #endif | |
1796 | ||
1797 | /* refuse events from disabled devices */ | |
1798 | if (!pDev->enabled) | |
1799 | return 0; | |
1800 | ||
1801 | /* Sanity checks. */ | |
1802 | if ((type != ProximityIn && type != ProximityOut) || !mask_in) | |
1803 | return 0; | |
1804 | if (!pDev->valuator || !pDev->proximity) | |
1805 | return 0; | |
1806 | ||
1807 | valuator_mask_copy(&mask, mask_in); | |
1808 | ||
1809 | /* ignore relative axes for proximity. */ | |
1810 | for (i = 0; i < valuator_mask_size(&mask); i++) { | |
1811 | if (valuator_mask_isset(&mask, i) && | |
1812 | valuator_get_mode(pDev, i) == Relative) | |
1813 | valuator_mask_unset(&mask, i); | |
1814 | } | |
1815 | ||
1816 | /* FIXME: posting proximity events with relative valuators only results | |
1817 | * in an empty event, EventToXI() will fail to convert → no event sent | |
1818 | * to client. */ | |
1819 | ||
1820 | events = | |
1821 | UpdateFromMaster(events, pDev, DEVCHANGE_POINTER_EVENT, &num_events); | |
1822 | ||
1823 | event = &events->device_event; | |
1824 | init_device_event(event, pDev, GetTimeInMillis()); | |
1825 | event->type = (type == ProximityIn) ? ET_ProximityIn : ET_ProximityOut; | |
1826 | ||
1827 | clipValuators(pDev, &mask); | |
1828 | ||
1829 | set_valuators(pDev, event, &mask); | |
1830 | ||
1831 | return num_events; | |
1832 | } | |
1833 | ||
1834 | int | |
1835 | GetTouchOwnershipEvents(InternalEvent *events, DeviceIntPtr pDev, | |
1836 | TouchPointInfoPtr ti, uint8_t reason, XID resource, | |
1837 | uint32_t flags) | |
1838 | { | |
1839 | TouchClassPtr t = pDev->touch; | |
1840 | TouchOwnershipEvent *event; | |
1841 | CARD32 ms = GetTimeInMillis(); | |
1842 | ||
1843 | if (!pDev->enabled || !t || !ti) | |
1844 | return 0; | |
1845 | ||
1846 | event = &events->touch_ownership_event; | |
1847 | init_touch_ownership(pDev, event, ms); | |
1848 | ||
1849 | event->touchid = ti->client_id; | |
1850 | event->sourceid = ti->sourceid; | |
1851 | event->resource = resource; | |
1852 | event->flags = flags; | |
1853 | event->reason = reason; | |
1854 | ||
1855 | return 1; | |
1856 | } | |
1857 | ||
1858 | /** | |
1859 | * Generate internal events representing this touch event and enqueue them | |
1860 | * on the event queue. | |
1861 | * | |
1862 | * This function is not reentrant. Disable signals before calling. | |
1863 | * | |
1864 | * @param device The device to generate the event for | |
1865 | * @param type Event type, one of XI_TouchBegin, XI_TouchUpdate, XI_TouchEnd | |
1866 | * @param touchid Touch point ID | |
1867 | * @param flags Event modification flags | |
1868 | * @param mask Valuator mask for valuators present for this event. | |
1869 | */ | |
1870 | void | |
1871 | QueueTouchEvents(DeviceIntPtr device, int type, | |
1872 | uint32_t ddx_touchid, int flags, const ValuatorMask *mask) | |
1873 | { | |
1874 | int nevents; | |
1875 | ||
1876 | nevents = | |
1877 | GetTouchEvents(InputEventList, device, ddx_touchid, type, flags, mask); | |
1878 | queueEventList(device, InputEventList, nevents); | |
1879 | } | |
1880 | ||
1881 | /** | |
1882 | * Get events for a touch. Generates a TouchBegin event if end is not set and | |
1883 | * the touch id is not active. Generates a TouchUpdate event if end is not set | |
1884 | * and the touch id is active. Generates a TouchEnd event if end is set and the | |
1885 | * touch id is active. | |
1886 | * | |
1887 | * events is not NULL-terminated; the return value is the number of events. | |
1888 | * The DDX is responsible for allocating the event structure in the first | |
1889 | * place via GetMaximumEventsNum(), and for freeing it. | |
1890 | * | |
1891 | * @param[out] events The list of events generated | |
1892 | * @param dev The device to generate the events for | |
1893 | * @param ddx_touchid The touch ID as assigned by the DDX | |
1894 | * @param type XI_TouchBegin, XI_TouchUpdate or XI_TouchEnd | |
1895 | * @param flags Event flags | |
1896 | * @param mask_in Valuator information for this event | |
1897 | */ | |
1898 | int | |
1899 | GetTouchEvents(InternalEvent *events, DeviceIntPtr dev, uint32_t ddx_touchid, | |
1900 | uint16_t type, uint32_t flags, const ValuatorMask *mask_in) | |
1901 | { | |
1902 | ScreenPtr scr = dev->spriteInfo->sprite->hotPhys.pScreen; | |
1903 | TouchClassPtr t = dev->touch; | |
1904 | ValuatorClassPtr v = dev->valuator; | |
1905 | DeviceEvent *event; | |
1906 | CARD32 ms = GetTimeInMillis(); | |
1907 | ValuatorMask mask; | |
1908 | double screenx = 0.0, screeny = 0.0; /* desktop coordinate system */ | |
1909 | double devx = 0.0, devy = 0.0; /* desktop-wide in device coords */ | |
1910 | int i; | |
1911 | int num_events = 0; | |
1912 | RawDeviceEvent *raw; | |
1913 | DDXTouchPointInfoPtr ti; | |
1914 | int need_rawevent = TRUE; | |
1915 | Bool emulate_pointer = FALSE; | |
1916 | int client_id = 0; | |
1917 | ||
1918 | #if XSERVER_DTRACE | |
1919 | if (XSERVER_INPUT_EVENT_ENABLED()) { | |
1920 | XSERVER_INPUT_EVENT(dev->id, type, ddx_touchid, flags, | |
1921 | mask_in ? mask_in->last_bit + 1 : 0, | |
1922 | mask_in ? mask_in->mask : NULL, | |
1923 | mask_in ? mask_in->valuators : NULL); | |
1924 | } | |
1925 | #endif | |
1926 | ||
1927 | if (!dev->enabled || !t || !v) | |
1928 | return 0; | |
1929 | ||
1930 | /* Find and/or create the DDX touch info */ | |
1931 | ||
1932 | ti = TouchFindByDDXID(dev, ddx_touchid, (type == XI_TouchBegin)); | |
1933 | if (!ti) { | |
1934 | ErrorFSigSafe("[dix] %s: unable to %s touch point %u\n", dev->name, | |
1935 | type == XI_TouchBegin ? "begin" : "find", ddx_touchid); | |
1936 | return 0; | |
1937 | } | |
1938 | client_id = ti->client_id; | |
1939 | ||
1940 | emulate_pointer = ti->emulate_pointer; | |
1941 | ||
1942 | if (!IsMaster(dev)) | |
1943 | events = | |
1944 | UpdateFromMaster(events, dev, DEVCHANGE_POINTER_EVENT, &num_events); | |
1945 | ||
1946 | valuator_mask_copy(&mask, mask_in); | |
1947 | ||
1948 | if (need_rawevent) { | |
1949 | raw = &events->raw_event; | |
1950 | events++; | |
1951 | num_events++; | |
1952 | init_raw(dev, raw, ms, type, client_id); | |
1953 | set_raw_valuators(raw, &mask, raw->valuators.data_raw); | |
1954 | } | |
1955 | ||
1956 | event = &events->device_event; | |
1957 | num_events++; | |
1958 | ||
1959 | init_device_event(event, dev, ms); | |
1960 | ||
1961 | switch (type) { | |
1962 | case XI_TouchBegin: | |
1963 | event->type = ET_TouchBegin; | |
1964 | /* If we're starting a touch, we must have x & y co-ordinates. */ | |
1965 | if (!mask_in || | |
1966 | !valuator_mask_isset(mask_in, 0) || | |
1967 | !valuator_mask_isset(mask_in, 1)) { | |
1968 | ErrorFSigSafe("%s: Attempted to start touch without x/y " | |
1969 | "(driver bug)\n", dev->name); | |
1970 | return 0; | |
1971 | } | |
1972 | break; | |
1973 | case XI_TouchUpdate: | |
1974 | event->type = ET_TouchUpdate; | |
1975 | if (!mask_in || valuator_mask_num_valuators(mask_in) <= 0) { | |
1976 | ErrorFSigSafe("%s: TouchUpdate with no valuators? Driver bug\n", | |
1977 | dev->name); | |
1978 | } | |
1979 | break; | |
1980 | case XI_TouchEnd: | |
1981 | event->type = ET_TouchEnd; | |
1982 | /* We can end the DDX touch here, since we don't use the active | |
1983 | * field below */ | |
1984 | TouchEndDDXTouch(dev, ti); | |
1985 | break; | |
1986 | default: | |
1987 | return 0; | |
1988 | } | |
1989 | ||
1990 | /* Get our screen event co-ordinates (root_x/root_y/event_x/event_y): | |
1991 | * these come from the touchpoint in Absolute mode, or the sprite in | |
1992 | * Relative. */ | |
1993 | if (t->mode == XIDirectTouch) { | |
1994 | for (i = 0; i < max(valuator_mask_size(&mask), 2); i++) { | |
1995 | double val; | |
1996 | ||
1997 | if (valuator_mask_fetch_double(&mask, i, &val)) | |
1998 | valuator_mask_set_double(ti->valuators, i, val); | |
1999 | /* If the device doesn't post new X and Y axis values, | |
2000 | * use the last values posted. | |
2001 | */ | |
2002 | else if (i < 2 && | |
2003 | valuator_mask_fetch_double(ti->valuators, i, &val)) | |
2004 | valuator_mask_set_double(&mask, i, val); | |
2005 | } | |
2006 | ||
2007 | transformAbsolute(dev, &mask); | |
2008 | clipAbsolute(dev, &mask); | |
2009 | } | |
2010 | else { | |
2011 | screenx = dev->spriteInfo->sprite->hotPhys.x; | |
2012 | screeny = dev->spriteInfo->sprite->hotPhys.y; | |
2013 | } | |
2014 | if (need_rawevent) | |
2015 | set_raw_valuators(raw, &mask, raw->valuators.data); | |
2016 | ||
2017 | /* Indirect device touch coordinates are not used for cursor positioning. | |
2018 | * They are merely informational, and are provided in device coordinates. | |
2019 | * The device sprite is used for positioning instead, and it is already | |
2020 | * scaled. */ | |
2021 | if (t->mode == XIDirectTouch) | |
2022 | scr = scale_to_desktop(dev, &mask, &devx, &devy, &screenx, &screeny); | |
2023 | if (emulate_pointer) | |
2024 | scr = positionSprite(dev, Absolute, &mask, | |
2025 | &devx, &devy, &screenx, &screeny, NULL, NULL); | |
2026 | ||
2027 | /* see fill_pointer_events for coordinate systems */ | |
2028 | if (emulate_pointer) | |
2029 | updateHistory(dev, &mask, ms); | |
2030 | ||
2031 | clipValuators(dev, &mask); | |
2032 | ||
2033 | if (emulate_pointer) | |
2034 | storeLastValuators(dev, &mask, 0, 1, devx, devy); | |
2035 | ||
2036 | /* Update the MD's co-ordinates, which are always in desktop space. */ | |
2037 | if (emulate_pointer && !IsMaster(dev) && !IsFloating(dev)) { | |
2038 | DeviceIntPtr master = GetMaster(dev, MASTER_POINTER); | |
2039 | ||
2040 | master->last.valuators[0] = screenx; | |
2041 | master->last.valuators[1] = screeny; | |
2042 | } | |
2043 | ||
2044 | event->root = scr->root->drawable.id; | |
2045 | ||
2046 | event_set_root_coordinates(event, screenx, screeny); | |
2047 | event->touchid = client_id; | |
2048 | event->flags = flags; | |
2049 | ||
2050 | if (emulate_pointer) { | |
2051 | event->flags |= TOUCH_POINTER_EMULATED; | |
2052 | event->detail.button = 1; | |
2053 | } | |
2054 | ||
2055 | set_valuators(dev, event, &mask); | |
2056 | for (i = 0; i < v->numAxes; i++) { | |
2057 | if (valuator_mask_isset(&mask, i)) | |
2058 | v->axisVal[i] = valuator_mask_get(&mask, i); | |
2059 | } | |
2060 | ||
2061 | return num_events; | |
2062 | } | |
2063 | ||
2064 | void | |
2065 | GetDixTouchEnd(InternalEvent *ievent, DeviceIntPtr dev, TouchPointInfoPtr ti, | |
2066 | uint32_t flags) | |
2067 | { | |
2068 | ScreenPtr scr = dev->spriteInfo->sprite->hotPhys.pScreen; | |
2069 | DeviceEvent *event = &ievent->device_event; | |
2070 | CARD32 ms = GetTimeInMillis(); | |
2071 | ||
2072 | BUG_WARN(!dev->enabled); | |
2073 | ||
2074 | init_device_event(event, dev, ms); | |
2075 | ||
2076 | event->sourceid = ti->sourceid; | |
2077 | event->type = ET_TouchEnd; | |
2078 | ||
2079 | event->root = scr->root->drawable.id; | |
2080 | ||
2081 | /* Get screen event coordinates from the sprite. Is this really the best | |
2082 | * we can do? */ | |
2083 | event_set_root_coordinates(event, | |
2084 | dev->last.valuators[0], | |
2085 | dev->last.valuators[1]); | |
2086 | event->touchid = ti->client_id; | |
2087 | event->flags = flags; | |
2088 | ||
2089 | if (flags & TOUCH_POINTER_EMULATED) { | |
2090 | event->flags |= TOUCH_POINTER_EMULATED; | |
2091 | event->detail.button = 1; | |
2092 | } | |
2093 | } | |
2094 | ||
2095 | /** | |
2096 | * Synthesize a single motion event for the core pointer. | |
2097 | * | |
2098 | * Used in cursor functions, e.g. when cursor confinement changes, and we need | |
2099 | * to shift the pointer to get it inside the new bounds. | |
2100 | */ | |
2101 | void | |
2102 | PostSyntheticMotion(DeviceIntPtr pDev, | |
2103 | int x, int y, int screen, unsigned long time) | |
2104 | { | |
2105 | DeviceEvent ev; | |
2106 | ||
2107 | #ifdef PANORAMIX | |
2108 | /* Translate back to the sprite screen since processInputProc | |
2109 | will translate from sprite screen to screen 0 upon reentry | |
2110 | to the DIX layer. */ | |
2111 | if (!noPanoramiXExtension) { | |
2112 | x += screenInfo.screens[0]->x - screenInfo.screens[screen]->x; | |
2113 | y += screenInfo.screens[0]->y - screenInfo.screens[screen]->y; | |
2114 | } | |
2115 | #endif | |
2116 | ||
2117 | memset(&ev, 0, sizeof(DeviceEvent)); | |
2118 | init_device_event(&ev, pDev, time); | |
2119 | ev.root_x = x; | |
2120 | ev.root_y = y; | |
2121 | ev.type = ET_Motion; | |
2122 | ev.time = time; | |
2123 | ||
2124 | /* FIXME: MD/SD considerations? */ | |
2125 | (*pDev->public.processInputProc) ((InternalEvent *) &ev, pDev); | |
2126 | } |