1/* Generated by wayland-scanner 1.16.0 */
2
3#ifndef WAYLAND_SERVER_PROTOCOL_H
4#define WAYLAND_SERVER_PROTOCOL_H
5
6#include <stdint.h>
7#include <stddef.h>
8#include "wayland-server.h"
9
10#ifdef __cplusplus
11extern "C" {
12#endif
13
14struct wl_client;
15struct wl_resource;
16
17/**
18 * @page page_wayland The wayland protocol
19 * @section page_ifaces_wayland Interfaces
20 * - @subpage page_iface_wl_display - core global object
21 * - @subpage page_iface_wl_registry - global registry object
22 * - @subpage page_iface_wl_callback - callback object
23 * - @subpage page_iface_wl_compositor - the compositor singleton
24 * - @subpage page_iface_wl_shm_pool - a shared memory pool
25 * - @subpage page_iface_wl_shm - shared memory support
26 * - @subpage page_iface_wl_buffer - content for a wl_surface
27 * - @subpage page_iface_wl_data_offer - offer to transfer data
28 * - @subpage page_iface_wl_data_source - offer to transfer data
29 * - @subpage page_iface_wl_data_device - data transfer device
30 * - @subpage page_iface_wl_data_device_manager - data transfer interface
31 * - @subpage page_iface_wl_shell - create desktop-style surfaces
32 * - @subpage page_iface_wl_shell_surface - desktop-style metadata interface
33 * - @subpage page_iface_wl_surface - an onscreen surface
34 * - @subpage page_iface_wl_seat - group of input devices
35 * - @subpage page_iface_wl_pointer - pointer input device
36 * - @subpage page_iface_wl_keyboard - keyboard input device
37 * - @subpage page_iface_wl_touch - touchscreen input device
38 * - @subpage page_iface_wl_output - compositor output region
39 * - @subpage page_iface_wl_region - region interface
40 * - @subpage page_iface_wl_subcompositor - sub-surface compositing
41 * - @subpage page_iface_wl_subsurface - sub-surface interface to a wl_surface
42 * @section page_copyright_wayland Copyright
43 * <pre>
44 *
45 * Copyright © 2008-2011 Kristian Høgsberg
46 * Copyright © 2010-2011 Intel Corporation
47 * Copyright © 2012-2013 Collabora, Ltd.
48 *
49 * Permission is hereby granted, free of charge, to any person
50 * obtaining a copy of this software and associated documentation files
51 * (the "Software"), to deal in the Software without restriction,
52 * including without limitation the rights to use, copy, modify, merge,
53 * publish, distribute, sublicense, and/or sell copies of the Software,
54 * and to permit persons to whom the Software is furnished to do so,
55 * subject to the following conditions:
56 *
57 * The above copyright notice and this permission notice (including the
58 * next paragraph) shall be included in all copies or substantial
59 * portions of the Software.
60 *
61 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
62 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
63 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
64 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
65 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
66 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
67 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
68 * SOFTWARE.
69 * </pre>
70 */
71struct wl_buffer;
72struct wl_callback;
73struct wl_compositor;
74struct wl_data_device;
75struct wl_data_device_manager;
76struct wl_data_offer;
77struct wl_data_source;
78struct wl_display;
79struct wl_keyboard;
80struct wl_output;
81struct wl_pointer;
82struct wl_region;
83struct wl_registry;
84struct wl_seat;
85struct wl_shell;
86struct wl_shell_surface;
87struct wl_shm;
88struct wl_shm_pool;
89struct wl_subcompositor;
90struct wl_subsurface;
91struct wl_surface;
92struct wl_touch;
93
94/**
95 * @page page_iface_wl_display wl_display
96 * @section page_iface_wl_display_desc Description
97 *
98 * The core global object. This is a special singleton object. It
99 * is used for internal Wayland protocol features.
100 * @section page_iface_wl_display_api API
101 * See @ref iface_wl_display.
102 */
103/**
104 * @defgroup iface_wl_display The wl_display interface
105 *
106 * The core global object. This is a special singleton object. It
107 * is used for internal Wayland protocol features.
108 */
109extern const struct wl_interface wl_display_interface;
110/**
111 * @page page_iface_wl_registry wl_registry
112 * @section page_iface_wl_registry_desc Description
113 *
114 * The singleton global registry object. The server has a number of
115 * global objects that are available to all clients. These objects
116 * typically represent an actual object in the server (for example,
117 * an input device) or they are singleton objects that provide
118 * extension functionality.
119 *
120 * When a client creates a registry object, the registry object
121 * will emit a global event for each global currently in the
122 * registry. Globals come and go as a result of device or
123 * monitor hotplugs, reconfiguration or other events, and the
124 * registry will send out global and global_remove events to
125 * keep the client up to date with the changes. To mark the end
126 * of the initial burst of events, the client can use the
127 * wl_display.sync request immediately after calling
128 * wl_display.get_registry.
129 *
130 * A client can bind to a global object by using the bind
131 * request. This creates a client-side handle that lets the object
132 * emit events to the client and lets the client invoke requests on
133 * the object.
134 * @section page_iface_wl_registry_api API
135 * See @ref iface_wl_registry.
136 */
137/**
138 * @defgroup iface_wl_registry The wl_registry interface
139 *
140 * The singleton global registry object. The server has a number of
141 * global objects that are available to all clients. These objects
142 * typically represent an actual object in the server (for example,
143 * an input device) or they are singleton objects that provide
144 * extension functionality.
145 *
146 * When a client creates a registry object, the registry object
147 * will emit a global event for each global currently in the
148 * registry. Globals come and go as a result of device or
149 * monitor hotplugs, reconfiguration or other events, and the
150 * registry will send out global and global_remove events to
151 * keep the client up to date with the changes. To mark the end
152 * of the initial burst of events, the client can use the
153 * wl_display.sync request immediately after calling
154 * wl_display.get_registry.
155 *
156 * A client can bind to a global object by using the bind
157 * request. This creates a client-side handle that lets the object
158 * emit events to the client and lets the client invoke requests on
159 * the object.
160 */
161extern const struct wl_interface wl_registry_interface;
162/**
163 * @page page_iface_wl_callback wl_callback
164 * @section page_iface_wl_callback_desc Description
165 *
166 * Clients can handle the 'done' event to get notified when
167 * the related request is done.
168 * @section page_iface_wl_callback_api API
169 * See @ref iface_wl_callback.
170 */
171/**
172 * @defgroup iface_wl_callback The wl_callback interface
173 *
174 * Clients can handle the 'done' event to get notified when
175 * the related request is done.
176 */
177extern const struct wl_interface wl_callback_interface;
178/**
179 * @page page_iface_wl_compositor wl_compositor
180 * @section page_iface_wl_compositor_desc Description
181 *
182 * A compositor. This object is a singleton global. The
183 * compositor is in charge of combining the contents of multiple
184 * surfaces into one displayable output.
185 * @section page_iface_wl_compositor_api API
186 * See @ref iface_wl_compositor.
187 */
188/**
189 * @defgroup iface_wl_compositor The wl_compositor interface
190 *
191 * A compositor. This object is a singleton global. The
192 * compositor is in charge of combining the contents of multiple
193 * surfaces into one displayable output.
194 */
195extern const struct wl_interface wl_compositor_interface;
196/**
197 * @page page_iface_wl_shm_pool wl_shm_pool
198 * @section page_iface_wl_shm_pool_desc Description
199 *
200 * The wl_shm_pool object encapsulates a piece of memory shared
201 * between the compositor and client. Through the wl_shm_pool
202 * object, the client can allocate shared memory wl_buffer objects.
203 * All objects created through the same pool share the same
204 * underlying mapped memory. Reusing the mapped memory avoids the
205 * setup/teardown overhead and is useful when interactively resizing
206 * a surface or for many small buffers.
207 * @section page_iface_wl_shm_pool_api API
208 * See @ref iface_wl_shm_pool.
209 */
210/**
211 * @defgroup iface_wl_shm_pool The wl_shm_pool interface
212 *
213 * The wl_shm_pool object encapsulates a piece of memory shared
214 * between the compositor and client. Through the wl_shm_pool
215 * object, the client can allocate shared memory wl_buffer objects.
216 * All objects created through the same pool share the same
217 * underlying mapped memory. Reusing the mapped memory avoids the
218 * setup/teardown overhead and is useful when interactively resizing
219 * a surface or for many small buffers.
220 */
221extern const struct wl_interface wl_shm_pool_interface;
222/**
223 * @page page_iface_wl_shm wl_shm
224 * @section page_iface_wl_shm_desc Description
225 *
226 * A singleton global object that provides support for shared
227 * memory.
228 *
229 * Clients can create wl_shm_pool objects using the create_pool
230 * request.
231 *
232 * At connection setup time, the wl_shm object emits one or more
233 * format events to inform clients about the valid pixel formats
234 * that can be used for buffers.
235 * @section page_iface_wl_shm_api API
236 * See @ref iface_wl_shm.
237 */
238/**
239 * @defgroup iface_wl_shm The wl_shm interface
240 *
241 * A singleton global object that provides support for shared
242 * memory.
243 *
244 * Clients can create wl_shm_pool objects using the create_pool
245 * request.
246 *
247 * At connection setup time, the wl_shm object emits one or more
248 * format events to inform clients about the valid pixel formats
249 * that can be used for buffers.
250 */
251extern const struct wl_interface wl_shm_interface;
252/**
253 * @page page_iface_wl_buffer wl_buffer
254 * @section page_iface_wl_buffer_desc Description
255 *
256 * A buffer provides the content for a wl_surface. Buffers are
257 * created through factory interfaces such as wl_drm, wl_shm or
258 * similar. It has a width and a height and can be attached to a
259 * wl_surface, but the mechanism by which a client provides and
260 * updates the contents is defined by the buffer factory interface.
261 * @section page_iface_wl_buffer_api API
262 * See @ref iface_wl_buffer.
263 */
264/**
265 * @defgroup iface_wl_buffer The wl_buffer interface
266 *
267 * A buffer provides the content for a wl_surface. Buffers are
268 * created through factory interfaces such as wl_drm, wl_shm or
269 * similar. It has a width and a height and can be attached to a
270 * wl_surface, but the mechanism by which a client provides and
271 * updates the contents is defined by the buffer factory interface.
272 */
273extern const struct wl_interface wl_buffer_interface;
274/**
275 * @page page_iface_wl_data_offer wl_data_offer
276 * @section page_iface_wl_data_offer_desc Description
277 *
278 * A wl_data_offer represents a piece of data offered for transfer
279 * by another client (the source client). It is used by the
280 * copy-and-paste and drag-and-drop mechanisms. The offer
281 * describes the different mime types that the data can be
282 * converted to and provides the mechanism for transferring the
283 * data directly from the source client.
284 * @section page_iface_wl_data_offer_api API
285 * See @ref iface_wl_data_offer.
286 */
287/**
288 * @defgroup iface_wl_data_offer The wl_data_offer interface
289 *
290 * A wl_data_offer represents a piece of data offered for transfer
291 * by another client (the source client). It is used by the
292 * copy-and-paste and drag-and-drop mechanisms. The offer
293 * describes the different mime types that the data can be
294 * converted to and provides the mechanism for transferring the
295 * data directly from the source client.
296 */
297extern const struct wl_interface wl_data_offer_interface;
298/**
299 * @page page_iface_wl_data_source wl_data_source
300 * @section page_iface_wl_data_source_desc Description
301 *
302 * The wl_data_source object is the source side of a wl_data_offer.
303 * It is created by the source client in a data transfer and
304 * provides a way to describe the offered data and a way to respond
305 * to requests to transfer the data.
306 * @section page_iface_wl_data_source_api API
307 * See @ref iface_wl_data_source.
308 */
309/**
310 * @defgroup iface_wl_data_source The wl_data_source interface
311 *
312 * The wl_data_source object is the source side of a wl_data_offer.
313 * It is created by the source client in a data transfer and
314 * provides a way to describe the offered data and a way to respond
315 * to requests to transfer the data.
316 */
317extern const struct wl_interface wl_data_source_interface;
318/**
319 * @page page_iface_wl_data_device wl_data_device
320 * @section page_iface_wl_data_device_desc Description
321 *
322 * There is one wl_data_device per seat which can be obtained
323 * from the global wl_data_device_manager singleton.
324 *
325 * A wl_data_device provides access to inter-client data transfer
326 * mechanisms such as copy-and-paste and drag-and-drop.
327 * @section page_iface_wl_data_device_api API
328 * See @ref iface_wl_data_device.
329 */
330/**
331 * @defgroup iface_wl_data_device The wl_data_device interface
332 *
333 * There is one wl_data_device per seat which can be obtained
334 * from the global wl_data_device_manager singleton.
335 *
336 * A wl_data_device provides access to inter-client data transfer
337 * mechanisms such as copy-and-paste and drag-and-drop.
338 */
339extern const struct wl_interface wl_data_device_interface;
340/**
341 * @page page_iface_wl_data_device_manager wl_data_device_manager
342 * @section page_iface_wl_data_device_manager_desc Description
343 *
344 * The wl_data_device_manager is a singleton global object that
345 * provides access to inter-client data transfer mechanisms such as
346 * copy-and-paste and drag-and-drop. These mechanisms are tied to
347 * a wl_seat and this interface lets a client get a wl_data_device
348 * corresponding to a wl_seat.
349 *
350 * Depending on the version bound, the objects created from the bound
351 * wl_data_device_manager object will have different requirements for
352 * functioning properly. See wl_data_source.set_actions,
353 * wl_data_offer.accept and wl_data_offer.finish for details.
354 * @section page_iface_wl_data_device_manager_api API
355 * See @ref iface_wl_data_device_manager.
356 */
357/**
358 * @defgroup iface_wl_data_device_manager The wl_data_device_manager interface
359 *
360 * The wl_data_device_manager is a singleton global object that
361 * provides access to inter-client data transfer mechanisms such as
362 * copy-and-paste and drag-and-drop. These mechanisms are tied to
363 * a wl_seat and this interface lets a client get a wl_data_device
364 * corresponding to a wl_seat.
365 *
366 * Depending on the version bound, the objects created from the bound
367 * wl_data_device_manager object will have different requirements for
368 * functioning properly. See wl_data_source.set_actions,
369 * wl_data_offer.accept and wl_data_offer.finish for details.
370 */
371extern const struct wl_interface wl_data_device_manager_interface;
372/**
373 * @page page_iface_wl_shell wl_shell
374 * @section page_iface_wl_shell_desc Description
375 *
376 * This interface is implemented by servers that provide
377 * desktop-style user interfaces.
378 *
379 * It allows clients to associate a wl_shell_surface with
380 * a basic surface.
381 *
382 * Note! This protocol is deprecated and not intended for production use.
383 * For desktop-style user interfaces, use xdg_shell.
384 * @section page_iface_wl_shell_api API
385 * See @ref iface_wl_shell.
386 */
387/**
388 * @defgroup iface_wl_shell The wl_shell interface
389 *
390 * This interface is implemented by servers that provide
391 * desktop-style user interfaces.
392 *
393 * It allows clients to associate a wl_shell_surface with
394 * a basic surface.
395 *
396 * Note! This protocol is deprecated and not intended for production use.
397 * For desktop-style user interfaces, use xdg_shell.
398 */
399extern const struct wl_interface wl_shell_interface;
400/**
401 * @page page_iface_wl_shell_surface wl_shell_surface
402 * @section page_iface_wl_shell_surface_desc Description
403 *
404 * An interface that may be implemented by a wl_surface, for
405 * implementations that provide a desktop-style user interface.
406 *
407 * It provides requests to treat surfaces like toplevel, fullscreen
408 * or popup windows, move, resize or maximize them, associate
409 * metadata like title and class, etc.
410 *
411 * On the server side the object is automatically destroyed when
412 * the related wl_surface is destroyed. On the client side,
413 * wl_shell_surface_destroy() must be called before destroying
414 * the wl_surface object.
415 * @section page_iface_wl_shell_surface_api API
416 * See @ref iface_wl_shell_surface.
417 */
418/**
419 * @defgroup iface_wl_shell_surface The wl_shell_surface interface
420 *
421 * An interface that may be implemented by a wl_surface, for
422 * implementations that provide a desktop-style user interface.
423 *
424 * It provides requests to treat surfaces like toplevel, fullscreen
425 * or popup windows, move, resize or maximize them, associate
426 * metadata like title and class, etc.
427 *
428 * On the server side the object is automatically destroyed when
429 * the related wl_surface is destroyed. On the client side,
430 * wl_shell_surface_destroy() must be called before destroying
431 * the wl_surface object.
432 */
433extern const struct wl_interface wl_shell_surface_interface;
434/**
435 * @page page_iface_wl_surface wl_surface
436 * @section page_iface_wl_surface_desc Description
437 *
438 * A surface is a rectangular area that is displayed on the screen.
439 * It has a location, size and pixel contents.
440 *
441 * The size of a surface (and relative positions on it) is described
442 * in surface-local coordinates, which may differ from the buffer
443 * coordinates of the pixel content, in case a buffer_transform
444 * or a buffer_scale is used.
445 *
446 * A surface without a "role" is fairly useless: a compositor does
447 * not know where, when or how to present it. The role is the
448 * purpose of a wl_surface. Examples of roles are a cursor for a
449 * pointer (as set by wl_pointer.set_cursor), a drag icon
450 * (wl_data_device.start_drag), a sub-surface
451 * (wl_subcompositor.get_subsurface), and a window as defined by a
452 * shell protocol (e.g. wl_shell.get_shell_surface).
453 *
454 * A surface can have only one role at a time. Initially a
455 * wl_surface does not have a role. Once a wl_surface is given a
456 * role, it is set permanently for the whole lifetime of the
457 * wl_surface object. Giving the current role again is allowed,
458 * unless explicitly forbidden by the relevant interface
459 * specification.
460 *
461 * Surface roles are given by requests in other interfaces such as
462 * wl_pointer.set_cursor. The request should explicitly mention
463 * that this request gives a role to a wl_surface. Often, this
464 * request also creates a new protocol object that represents the
465 * role and adds additional functionality to wl_surface. When a
466 * client wants to destroy a wl_surface, they must destroy this 'role
467 * object' before the wl_surface.
468 *
469 * Destroying the role object does not remove the role from the
470 * wl_surface, but it may stop the wl_surface from "playing the role".
471 * For instance, if a wl_subsurface object is destroyed, the wl_surface
472 * it was created for will be unmapped and forget its position and
473 * z-order. It is allowed to create a wl_subsurface for the same
474 * wl_surface again, but it is not allowed to use the wl_surface as
475 * a cursor (cursor is a different role than sub-surface, and role
476 * switching is not allowed).
477 * @section page_iface_wl_surface_api API
478 * See @ref iface_wl_surface.
479 */
480/**
481 * @defgroup iface_wl_surface The wl_surface interface
482 *
483 * A surface is a rectangular area that is displayed on the screen.
484 * It has a location, size and pixel contents.
485 *
486 * The size of a surface (and relative positions on it) is described
487 * in surface-local coordinates, which may differ from the buffer
488 * coordinates of the pixel content, in case a buffer_transform
489 * or a buffer_scale is used.
490 *
491 * A surface without a "role" is fairly useless: a compositor does
492 * not know where, when or how to present it. The role is the
493 * purpose of a wl_surface. Examples of roles are a cursor for a
494 * pointer (as set by wl_pointer.set_cursor), a drag icon
495 * (wl_data_device.start_drag), a sub-surface
496 * (wl_subcompositor.get_subsurface), and a window as defined by a
497 * shell protocol (e.g. wl_shell.get_shell_surface).
498 *
499 * A surface can have only one role at a time. Initially a
500 * wl_surface does not have a role. Once a wl_surface is given a
501 * role, it is set permanently for the whole lifetime of the
502 * wl_surface object. Giving the current role again is allowed,
503 * unless explicitly forbidden by the relevant interface
504 * specification.
505 *
506 * Surface roles are given by requests in other interfaces such as
507 * wl_pointer.set_cursor. The request should explicitly mention
508 * that this request gives a role to a wl_surface. Often, this
509 * request also creates a new protocol object that represents the
510 * role and adds additional functionality to wl_surface. When a
511 * client wants to destroy a wl_surface, they must destroy this 'role
512 * object' before the wl_surface.
513 *
514 * Destroying the role object does not remove the role from the
515 * wl_surface, but it may stop the wl_surface from "playing the role".
516 * For instance, if a wl_subsurface object is destroyed, the wl_surface
517 * it was created for will be unmapped and forget its position and
518 * z-order. It is allowed to create a wl_subsurface for the same
519 * wl_surface again, but it is not allowed to use the wl_surface as
520 * a cursor (cursor is a different role than sub-surface, and role
521 * switching is not allowed).
522 */
523extern const struct wl_interface wl_surface_interface;
524/**
525 * @page page_iface_wl_seat wl_seat
526 * @section page_iface_wl_seat_desc Description
527 *
528 * A seat is a group of keyboards, pointer and touch devices. This
529 * object is published as a global during start up, or when such a
530 * device is hot plugged. A seat typically has a pointer and
531 * maintains a keyboard focus and a pointer focus.
532 * @section page_iface_wl_seat_api API
533 * See @ref iface_wl_seat.
534 */
535/**
536 * @defgroup iface_wl_seat The wl_seat interface
537 *
538 * A seat is a group of keyboards, pointer and touch devices. This
539 * object is published as a global during start up, or when such a
540 * device is hot plugged. A seat typically has a pointer and
541 * maintains a keyboard focus and a pointer focus.
542 */
543extern const struct wl_interface wl_seat_interface;
544/**
545 * @page page_iface_wl_pointer wl_pointer
546 * @section page_iface_wl_pointer_desc Description
547 *
548 * The wl_pointer interface represents one or more input devices,
549 * such as mice, which control the pointer location and pointer_focus
550 * of a seat.
551 *
552 * The wl_pointer interface generates motion, enter and leave
553 * events for the surfaces that the pointer is located over,
554 * and button and axis events for button presses, button releases
555 * and scrolling.
556 * @section page_iface_wl_pointer_api API
557 * See @ref iface_wl_pointer.
558 */
559/**
560 * @defgroup iface_wl_pointer The wl_pointer interface
561 *
562 * The wl_pointer interface represents one or more input devices,
563 * such as mice, which control the pointer location and pointer_focus
564 * of a seat.
565 *
566 * The wl_pointer interface generates motion, enter and leave
567 * events for the surfaces that the pointer is located over,
568 * and button and axis events for button presses, button releases
569 * and scrolling.
570 */
571extern const struct wl_interface wl_pointer_interface;
572/**
573 * @page page_iface_wl_keyboard wl_keyboard
574 * @section page_iface_wl_keyboard_desc Description
575 *
576 * The wl_keyboard interface represents one or more keyboards
577 * associated with a seat.
578 * @section page_iface_wl_keyboard_api API
579 * See @ref iface_wl_keyboard.
580 */
581/**
582 * @defgroup iface_wl_keyboard The wl_keyboard interface
583 *
584 * The wl_keyboard interface represents one or more keyboards
585 * associated with a seat.
586 */
587extern const struct wl_interface wl_keyboard_interface;
588/**
589 * @page page_iface_wl_touch wl_touch
590 * @section page_iface_wl_touch_desc Description
591 *
592 * The wl_touch interface represents a touchscreen
593 * associated with a seat.
594 *
595 * Touch interactions can consist of one or more contacts.
596 * For each contact, a series of events is generated, starting
597 * with a down event, followed by zero or more motion events,
598 * and ending with an up event. Events relating to the same
599 * contact point can be identified by the ID of the sequence.
600 * @section page_iface_wl_touch_api API
601 * See @ref iface_wl_touch.
602 */
603/**
604 * @defgroup iface_wl_touch The wl_touch interface
605 *
606 * The wl_touch interface represents a touchscreen
607 * associated with a seat.
608 *
609 * Touch interactions can consist of one or more contacts.
610 * For each contact, a series of events is generated, starting
611 * with a down event, followed by zero or more motion events,
612 * and ending with an up event. Events relating to the same
613 * contact point can be identified by the ID of the sequence.
614 */
615extern const struct wl_interface wl_touch_interface;
616/**
617 * @page page_iface_wl_output wl_output
618 * @section page_iface_wl_output_desc Description
619 *
620 * An output describes part of the compositor geometry. The
621 * compositor works in the 'compositor coordinate system' and an
622 * output corresponds to a rectangular area in that space that is
623 * actually visible. This typically corresponds to a monitor that
624 * displays part of the compositor space. This object is published
625 * as global during start up, or when a monitor is hotplugged.
626 * @section page_iface_wl_output_api API
627 * See @ref iface_wl_output.
628 */
629/**
630 * @defgroup iface_wl_output The wl_output interface
631 *
632 * An output describes part of the compositor geometry. The
633 * compositor works in the 'compositor coordinate system' and an
634 * output corresponds to a rectangular area in that space that is
635 * actually visible. This typically corresponds to a monitor that
636 * displays part of the compositor space. This object is published
637 * as global during start up, or when a monitor is hotplugged.
638 */
639extern const struct wl_interface wl_output_interface;
640/**
641 * @page page_iface_wl_region wl_region
642 * @section page_iface_wl_region_desc Description
643 *
644 * A region object describes an area.
645 *
646 * Region objects are used to describe the opaque and input
647 * regions of a surface.
648 * @section page_iface_wl_region_api API
649 * See @ref iface_wl_region.
650 */
651/**
652 * @defgroup iface_wl_region The wl_region interface
653 *
654 * A region object describes an area.
655 *
656 * Region objects are used to describe the opaque and input
657 * regions of a surface.
658 */
659extern const struct wl_interface wl_region_interface;
660/**
661 * @page page_iface_wl_subcompositor wl_subcompositor
662 * @section page_iface_wl_subcompositor_desc Description
663 *
664 * The global interface exposing sub-surface compositing capabilities.
665 * A wl_surface, that has sub-surfaces associated, is called the
666 * parent surface. Sub-surfaces can be arbitrarily nested and create
667 * a tree of sub-surfaces.
668 *
669 * The root surface in a tree of sub-surfaces is the main
670 * surface. The main surface cannot be a sub-surface, because
671 * sub-surfaces must always have a parent.
672 *
673 * A main surface with its sub-surfaces forms a (compound) window.
674 * For window management purposes, this set of wl_surface objects is
675 * to be considered as a single window, and it should also behave as
676 * such.
677 *
678 * The aim of sub-surfaces is to offload some of the compositing work
679 * within a window from clients to the compositor. A prime example is
680 * a video player with decorations and video in separate wl_surface
681 * objects. This should allow the compositor to pass YUV video buffer
682 * processing to dedicated overlay hardware when possible.
683 * @section page_iface_wl_subcompositor_api API
684 * See @ref iface_wl_subcompositor.
685 */
686/**
687 * @defgroup iface_wl_subcompositor The wl_subcompositor interface
688 *
689 * The global interface exposing sub-surface compositing capabilities.
690 * A wl_surface, that has sub-surfaces associated, is called the
691 * parent surface. Sub-surfaces can be arbitrarily nested and create
692 * a tree of sub-surfaces.
693 *
694 * The root surface in a tree of sub-surfaces is the main
695 * surface. The main surface cannot be a sub-surface, because
696 * sub-surfaces must always have a parent.
697 *
698 * A main surface with its sub-surfaces forms a (compound) window.
699 * For window management purposes, this set of wl_surface objects is
700 * to be considered as a single window, and it should also behave as
701 * such.
702 *
703 * The aim of sub-surfaces is to offload some of the compositing work
704 * within a window from clients to the compositor. A prime example is
705 * a video player with decorations and video in separate wl_surface
706 * objects. This should allow the compositor to pass YUV video buffer
707 * processing to dedicated overlay hardware when possible.
708 */
709extern const struct wl_interface wl_subcompositor_interface;
710/**
711 * @page page_iface_wl_subsurface wl_subsurface
712 * @section page_iface_wl_subsurface_desc Description
713 *
714 * An additional interface to a wl_surface object, which has been
715 * made a sub-surface. A sub-surface has one parent surface. A
716 * sub-surface's size and position are not limited to that of the parent.
717 * Particularly, a sub-surface is not automatically clipped to its
718 * parent's area.
719 *
720 * A sub-surface becomes mapped, when a non-NULL wl_buffer is applied
721 * and the parent surface is mapped. The order of which one happens
722 * first is irrelevant. A sub-surface is hidden if the parent becomes
723 * hidden, or if a NULL wl_buffer is applied. These rules apply
724 * recursively through the tree of surfaces.
725 *
726 * The behaviour of a wl_surface.commit request on a sub-surface
727 * depends on the sub-surface's mode. The possible modes are
728 * synchronized and desynchronized, see methods
729 * wl_subsurface.set_sync and wl_subsurface.set_desync. Synchronized
730 * mode caches the wl_surface state to be applied when the parent's
731 * state gets applied, and desynchronized mode applies the pending
732 * wl_surface state directly. A sub-surface is initially in the
733 * synchronized mode.
734 *
735 * Sub-surfaces have also other kind of state, which is managed by
736 * wl_subsurface requests, as opposed to wl_surface requests. This
737 * state includes the sub-surface position relative to the parent
738 * surface (wl_subsurface.set_position), and the stacking order of
739 * the parent and its sub-surfaces (wl_subsurface.place_above and
740 * .place_below). This state is applied when the parent surface's
741 * wl_surface state is applied, regardless of the sub-surface's mode.
742 * As the exception, set_sync and set_desync are effective immediately.
743 *
744 * The main surface can be thought to be always in desynchronized mode,
745 * since it does not have a parent in the sub-surfaces sense.
746 *
747 * Even if a sub-surface is in desynchronized mode, it will behave as
748 * in synchronized mode, if its parent surface behaves as in
749 * synchronized mode. This rule is applied recursively throughout the
750 * tree of surfaces. This means, that one can set a sub-surface into
751 * synchronized mode, and then assume that all its child and grand-child
752 * sub-surfaces are synchronized, too, without explicitly setting them.
753 *
754 * If the wl_surface associated with the wl_subsurface is destroyed, the
755 * wl_subsurface object becomes inert. Note, that destroying either object
756 * takes effect immediately. If you need to synchronize the removal
757 * of a sub-surface to the parent surface update, unmap the sub-surface
758 * first by attaching a NULL wl_buffer, update parent, and then destroy
759 * the sub-surface.
760 *
761 * If the parent wl_surface object is destroyed, the sub-surface is
762 * unmapped.
763 * @section page_iface_wl_subsurface_api API
764 * See @ref iface_wl_subsurface.
765 */
766/**
767 * @defgroup iface_wl_subsurface The wl_subsurface interface
768 *
769 * An additional interface to a wl_surface object, which has been
770 * made a sub-surface. A sub-surface has one parent surface. A
771 * sub-surface's size and position are not limited to that of the parent.
772 * Particularly, a sub-surface is not automatically clipped to its
773 * parent's area.
774 *
775 * A sub-surface becomes mapped, when a non-NULL wl_buffer is applied
776 * and the parent surface is mapped. The order of which one happens
777 * first is irrelevant. A sub-surface is hidden if the parent becomes
778 * hidden, or if a NULL wl_buffer is applied. These rules apply
779 * recursively through the tree of surfaces.
780 *
781 * The behaviour of a wl_surface.commit request on a sub-surface
782 * depends on the sub-surface's mode. The possible modes are
783 * synchronized and desynchronized, see methods
784 * wl_subsurface.set_sync and wl_subsurface.set_desync. Synchronized
785 * mode caches the wl_surface state to be applied when the parent's
786 * state gets applied, and desynchronized mode applies the pending
787 * wl_surface state directly. A sub-surface is initially in the
788 * synchronized mode.
789 *
790 * Sub-surfaces have also other kind of state, which is managed by
791 * wl_subsurface requests, as opposed to wl_surface requests. This
792 * state includes the sub-surface position relative to the parent
793 * surface (wl_subsurface.set_position), and the stacking order of
794 * the parent and its sub-surfaces (wl_subsurface.place_above and
795 * .place_below). This state is applied when the parent surface's
796 * wl_surface state is applied, regardless of the sub-surface's mode.
797 * As the exception, set_sync and set_desync are effective immediately.
798 *
799 * The main surface can be thought to be always in desynchronized mode,
800 * since it does not have a parent in the sub-surfaces sense.
801 *
802 * Even if a sub-surface is in desynchronized mode, it will behave as
803 * in synchronized mode, if its parent surface behaves as in
804 * synchronized mode. This rule is applied recursively throughout the
805 * tree of surfaces. This means, that one can set a sub-surface into
806 * synchronized mode, and then assume that all its child and grand-child
807 * sub-surfaces are synchronized, too, without explicitly setting them.
808 *
809 * If the wl_surface associated with the wl_subsurface is destroyed, the
810 * wl_subsurface object becomes inert. Note, that destroying either object
811 * takes effect immediately. If you need to synchronize the removal
812 * of a sub-surface to the parent surface update, unmap the sub-surface
813 * first by attaching a NULL wl_buffer, update parent, and then destroy
814 * the sub-surface.
815 *
816 * If the parent wl_surface object is destroyed, the sub-surface is
817 * unmapped.
818 */
819extern const struct wl_interface wl_subsurface_interface;
820
821#ifndef WL_DISPLAY_ERROR_ENUM
822#define WL_DISPLAY_ERROR_ENUM
823/**
824 * @ingroup iface_wl_display
825 * global error values
826 *
827 * These errors are global and can be emitted in response to any
828 * server request.
829 */
830enum wl_display_error {
831 /**
832 * server couldn't find object
833 */
834 WL_DISPLAY_ERROR_INVALID_OBJECT = 0,
835 /**
836 * method doesn't exist on the specified interface
837 */
838 WL_DISPLAY_ERROR_INVALID_METHOD = 1,
839 /**
840 * server is out of memory
841 */
842 WL_DISPLAY_ERROR_NO_MEMORY = 2,
843};
844#endif /* WL_DISPLAY_ERROR_ENUM */
845
846/**
847 * @ingroup iface_wl_display
848 * @struct wl_display_interface
849 */
850struct wl_display_interface {
851 /**
852 * asynchronous roundtrip
853 *
854 * The sync request asks the server to emit the 'done' event on
855 * the returned wl_callback object. Since requests are handled
856 * in-order and events are delivered in-order, this can be used as
857 * a barrier to ensure all previous requests and the resulting
858 * events have been handled.
859 *
860 * The object returned by this request will be destroyed by the
861 * compositor after the callback is fired and as such the client
862 * must not attempt to use it after that point.
863 *
864 * The callback_data passed in the callback is the event serial.
865 * @param callback callback object for the sync request
866 */
867 void (*sync)(struct wl_client *client,
868 struct wl_resource *resource,
869 uint32_t callback);
870 /**
871 * get global registry object
872 *
873 * This request creates a registry object that allows the client
874 * to list and bind the global objects available from the
875 * compositor.
876 *
877 * It should be noted that the server side resources consumed in
878 * response to a get_registry request can only be released when the
879 * client disconnects, not when the client side proxy is destroyed.
880 * Therefore, clients should invoke get_registry as infrequently as
881 * possible to avoid wasting memory.
882 * @param registry global registry object
883 */
884 void (*get_registry)(struct wl_client *client,
885 struct wl_resource *resource,
886 uint32_t registry);
887};
888
889#define WL_DISPLAY_ERROR 0
890#define WL_DISPLAY_DELETE_ID 1
891
892/**
893 * @ingroup iface_wl_display
894 */
895#define WL_DISPLAY_ERROR_SINCE_VERSION 1
896/**
897 * @ingroup iface_wl_display
898 */
899#define WL_DISPLAY_DELETE_ID_SINCE_VERSION 1
900
901/**
902 * @ingroup iface_wl_display
903 */
904#define WL_DISPLAY_SYNC_SINCE_VERSION 1
905/**
906 * @ingroup iface_wl_display
907 */
908#define WL_DISPLAY_GET_REGISTRY_SINCE_VERSION 1
909
910/**
911 * @ingroup iface_wl_registry
912 * @struct wl_registry_interface
913 */
914struct wl_registry_interface {
915 /**
916 * bind an object to the display
917 *
918 * Binds a new, client-created object to the server using the
919 * specified name as the identifier.
920 * @param name unique numeric name of the object
921 * @param interface name of the objects interface
922 * @param version version of the objects interface
923 * @param id bounded object
924 */
925 void (*bind)(struct wl_client *client,
926 struct wl_resource *resource,
927 uint32_t name,
928 const char *interface, uint32_t version, uint32_t id);
929};
930
931#define WL_REGISTRY_GLOBAL 0
932#define WL_REGISTRY_GLOBAL_REMOVE 1
933
934/**
935 * @ingroup iface_wl_registry
936 */
937#define WL_REGISTRY_GLOBAL_SINCE_VERSION 1
938/**
939 * @ingroup iface_wl_registry
940 */
941#define WL_REGISTRY_GLOBAL_REMOVE_SINCE_VERSION 1
942
943/**
944 * @ingroup iface_wl_registry
945 */
946#define WL_REGISTRY_BIND_SINCE_VERSION 1
947
948/**
949 * @ingroup iface_wl_registry
950 * Sends an global event to the client owning the resource.
951 * @param resource_ The client's resource
952 * @param name numeric name of the global object
953 * @param interface interface implemented by the object
954 * @param version interface version
955 */
956static inline void
957wl_registry_send_global(struct wl_resource *resource_, uint32_t name, const char *interface, uint32_t version)
958{
959 wl_resource_post_event(resource_, WL_REGISTRY_GLOBAL, name, interface, version);
960}
961
962/**
963 * @ingroup iface_wl_registry
964 * Sends an global_remove event to the client owning the resource.
965 * @param resource_ The client's resource
966 * @param name numeric name of the global object
967 */
968static inline void
969wl_registry_send_global_remove(struct wl_resource *resource_, uint32_t name)
970{
971 wl_resource_post_event(resource_, WL_REGISTRY_GLOBAL_REMOVE, name);
972}
973
974#define WL_CALLBACK_DONE 0
975
976/**
977 * @ingroup iface_wl_callback
978 */
979#define WL_CALLBACK_DONE_SINCE_VERSION 1
980
981
982/**
983 * @ingroup iface_wl_callback
984 * Sends an done event to the client owning the resource.
985 * @param resource_ The client's resource
986 * @param callback_data request-specific data for the callback
987 */
988static inline void
989wl_callback_send_done(struct wl_resource *resource_, uint32_t callback_data)
990{
991 wl_resource_post_event(resource_, WL_CALLBACK_DONE, callback_data);
992}
993
994/**
995 * @ingroup iface_wl_compositor
996 * @struct wl_compositor_interface
997 */
998struct wl_compositor_interface {
999 /**
1000 * create new surface
1001 *
1002 * Ask the compositor to create a new surface.
1003 * @param id the new surface
1004 */
1005 void (*create_surface)(struct wl_client *client,
1006 struct wl_resource *resource,
1007 uint32_t id);
1008 /**
1009 * create new region
1010 *
1011 * Ask the compositor to create a new region.
1012 * @param id the new region
1013 */
1014 void (*create_region)(struct wl_client *client,
1015 struct wl_resource *resource,
1016 uint32_t id);
1017};
1018
1019
1020/**
1021 * @ingroup iface_wl_compositor
1022 */
1023#define WL_COMPOSITOR_CREATE_SURFACE_SINCE_VERSION 1
1024/**
1025 * @ingroup iface_wl_compositor
1026 */
1027#define WL_COMPOSITOR_CREATE_REGION_SINCE_VERSION 1
1028
1029/**
1030 * @ingroup iface_wl_shm_pool
1031 * @struct wl_shm_pool_interface
1032 */
1033struct wl_shm_pool_interface {
1034 /**
1035 * create a buffer from the pool
1036 *
1037 * Create a wl_buffer object from the pool.
1038 *
1039 * The buffer is created offset bytes into the pool and has width
1040 * and height as specified. The stride argument specifies the
1041 * number of bytes from the beginning of one row to the beginning
1042 * of the next. The format is the pixel format of the buffer and
1043 * must be one of those advertised through the wl_shm.format event.
1044 *
1045 * A buffer will keep a reference to the pool it was created from
1046 * so it is valid to destroy the pool immediately after creating a
1047 * buffer from it.
1048 * @param id buffer to create
1049 * @param offset buffer byte offset within the pool
1050 * @param width buffer width, in pixels
1051 * @param height buffer height, in pixels
1052 * @param stride number of bytes from the beginning of one row to the beginning of the next row
1053 * @param format buffer pixel format
1054 */
1055 void (*create_buffer)(struct wl_client *client,
1056 struct wl_resource *resource,
1057 uint32_t id,
1058 int32_t offset,
1059 int32_t width,
1060 int32_t height,
1061 int32_t stride,
1062 uint32_t format);
1063 /**
1064 * destroy the pool
1065 *
1066 * Destroy the shared memory pool.
1067 *
1068 * The mmapped memory will be released when all buffers that have
1069 * been created from this pool are gone.
1070 */
1071 void (*destroy)(struct wl_client *client,
1072 struct wl_resource *resource);
1073 /**
1074 * change the size of the pool mapping
1075 *
1076 * This request will cause the server to remap the backing memory
1077 * for the pool from the file descriptor passed when the pool was
1078 * created, but using the new size. This request can only be used
1079 * to make the pool bigger.
1080 * @param size new size of the pool, in bytes
1081 */
1082 void (*resize)(struct wl_client *client,
1083 struct wl_resource *resource,
1084 int32_t size);
1085};
1086
1087
1088/**
1089 * @ingroup iface_wl_shm_pool
1090 */
1091#define WL_SHM_POOL_CREATE_BUFFER_SINCE_VERSION 1
1092/**
1093 * @ingroup iface_wl_shm_pool
1094 */
1095#define WL_SHM_POOL_DESTROY_SINCE_VERSION 1
1096/**
1097 * @ingroup iface_wl_shm_pool
1098 */
1099#define WL_SHM_POOL_RESIZE_SINCE_VERSION 1
1100
1101#ifndef WL_SHM_ERROR_ENUM
1102#define WL_SHM_ERROR_ENUM
1103/**
1104 * @ingroup iface_wl_shm
1105 * wl_shm error values
1106 *
1107 * These errors can be emitted in response to wl_shm requests.
1108 */
1109enum wl_shm_error {
1110 /**
1111 * buffer format is not known
1112 */
1113 WL_SHM_ERROR_INVALID_FORMAT = 0,
1114 /**
1115 * invalid size or stride during pool or buffer creation
1116 */
1117 WL_SHM_ERROR_INVALID_STRIDE = 1,
1118 /**
1119 * mmapping the file descriptor failed
1120 */
1121 WL_SHM_ERROR_INVALID_FD = 2,
1122};
1123#endif /* WL_SHM_ERROR_ENUM */
1124
1125#ifndef WL_SHM_FORMAT_ENUM
1126#define WL_SHM_FORMAT_ENUM
1127/**
1128 * @ingroup iface_wl_shm
1129 * pixel formats
1130 *
1131 * This describes the memory layout of an individual pixel.
1132 *
1133 * All renderers should support argb8888 and xrgb8888 but any other
1134 * formats are optional and may not be supported by the particular
1135 * renderer in use.
1136 *
1137 * The drm format codes match the macros defined in drm_fourcc.h.
1138 * The formats actually supported by the compositor will be
1139 * reported by the format event.
1140 */
1141enum wl_shm_format {
1142 /**
1143 * 32-bit ARGB format, [31:0] A:R:G:B 8:8:8:8 little endian
1144 */
1145 WL_SHM_FORMAT_ARGB8888 = 0,
1146 /**
1147 * 32-bit RGB format, [31:0] x:R:G:B 8:8:8:8 little endian
1148 */
1149 WL_SHM_FORMAT_XRGB8888 = 1,
1150 /**
1151 * 8-bit color index format, [7:0] C
1152 */
1153 WL_SHM_FORMAT_C8 = 0x20203843,
1154 /**
1155 * 8-bit RGB format, [7:0] R:G:B 3:3:2
1156 */
1157 WL_SHM_FORMAT_RGB332 = 0x38424752,
1158 /**
1159 * 8-bit BGR format, [7:0] B:G:R 2:3:3
1160 */
1161 WL_SHM_FORMAT_BGR233 = 0x38524742,
1162 /**
1163 * 16-bit xRGB format, [15:0] x:R:G:B 4:4:4:4 little endian
1164 */
1165 WL_SHM_FORMAT_XRGB4444 = 0x32315258,
1166 /**
1167 * 16-bit xBGR format, [15:0] x:B:G:R 4:4:4:4 little endian
1168 */
1169 WL_SHM_FORMAT_XBGR4444 = 0x32314258,
1170 /**
1171 * 16-bit RGBx format, [15:0] R:G:B:x 4:4:4:4 little endian
1172 */
1173 WL_SHM_FORMAT_RGBX4444 = 0x32315852,
1174 /**
1175 * 16-bit BGRx format, [15:0] B:G:R:x 4:4:4:4 little endian
1176 */
1177 WL_SHM_FORMAT_BGRX4444 = 0x32315842,
1178 /**
1179 * 16-bit ARGB format, [15:0] A:R:G:B 4:4:4:4 little endian
1180 */
1181 WL_SHM_FORMAT_ARGB4444 = 0x32315241,
1182 /**
1183 * 16-bit ABGR format, [15:0] A:B:G:R 4:4:4:4 little endian
1184 */
1185 WL_SHM_FORMAT_ABGR4444 = 0x32314241,
1186 /**
1187 * 16-bit RBGA format, [15:0] R:G:B:A 4:4:4:4 little endian
1188 */
1189 WL_SHM_FORMAT_RGBA4444 = 0x32314152,
1190 /**
1191 * 16-bit BGRA format, [15:0] B:G:R:A 4:4:4:4 little endian
1192 */
1193 WL_SHM_FORMAT_BGRA4444 = 0x32314142,
1194 /**
1195 * 16-bit xRGB format, [15:0] x:R:G:B 1:5:5:5 little endian
1196 */
1197 WL_SHM_FORMAT_XRGB1555 = 0x35315258,
1198 /**
1199 * 16-bit xBGR 1555 format, [15:0] x:B:G:R 1:5:5:5 little endian
1200 */
1201 WL_SHM_FORMAT_XBGR1555 = 0x35314258,
1202 /**
1203 * 16-bit RGBx 5551 format, [15:0] R:G:B:x 5:5:5:1 little endian
1204 */
1205 WL_SHM_FORMAT_RGBX5551 = 0x35315852,
1206 /**
1207 * 16-bit BGRx 5551 format, [15:0] B:G:R:x 5:5:5:1 little endian
1208 */
1209 WL_SHM_FORMAT_BGRX5551 = 0x35315842,
1210 /**
1211 * 16-bit ARGB 1555 format, [15:0] A:R:G:B 1:5:5:5 little endian
1212 */
1213 WL_SHM_FORMAT_ARGB1555 = 0x35315241,
1214 /**
1215 * 16-bit ABGR 1555 format, [15:0] A:B:G:R 1:5:5:5 little endian
1216 */
1217 WL_SHM_FORMAT_ABGR1555 = 0x35314241,
1218 /**
1219 * 16-bit RGBA 5551 format, [15:0] R:G:B:A 5:5:5:1 little endian
1220 */
1221 WL_SHM_FORMAT_RGBA5551 = 0x35314152,
1222 /**
1223 * 16-bit BGRA 5551 format, [15:0] B:G:R:A 5:5:5:1 little endian
1224 */
1225 WL_SHM_FORMAT_BGRA5551 = 0x35314142,
1226 /**
1227 * 16-bit RGB 565 format, [15:0] R:G:B 5:6:5 little endian
1228 */
1229 WL_SHM_FORMAT_RGB565 = 0x36314752,
1230 /**
1231 * 16-bit BGR 565 format, [15:0] B:G:R 5:6:5 little endian
1232 */
1233 WL_SHM_FORMAT_BGR565 = 0x36314742,
1234 /**
1235 * 24-bit RGB format, [23:0] R:G:B little endian
1236 */
1237 WL_SHM_FORMAT_RGB888 = 0x34324752,
1238 /**
1239 * 24-bit BGR format, [23:0] B:G:R little endian
1240 */
1241 WL_SHM_FORMAT_BGR888 = 0x34324742,
1242 /**
1243 * 32-bit xBGR format, [31:0] x:B:G:R 8:8:8:8 little endian
1244 */
1245 WL_SHM_FORMAT_XBGR8888 = 0x34324258,
1246 /**
1247 * 32-bit RGBx format, [31:0] R:G:B:x 8:8:8:8 little endian
1248 */
1249 WL_SHM_FORMAT_RGBX8888 = 0x34325852,
1250 /**
1251 * 32-bit BGRx format, [31:0] B:G:R:x 8:8:8:8 little endian
1252 */
1253 WL_SHM_FORMAT_BGRX8888 = 0x34325842,
1254 /**
1255 * 32-bit ABGR format, [31:0] A:B:G:R 8:8:8:8 little endian
1256 */
1257 WL_SHM_FORMAT_ABGR8888 = 0x34324241,
1258 /**
1259 * 32-bit RGBA format, [31:0] R:G:B:A 8:8:8:8 little endian
1260 */
1261 WL_SHM_FORMAT_RGBA8888 = 0x34324152,
1262 /**
1263 * 32-bit BGRA format, [31:0] B:G:R:A 8:8:8:8 little endian
1264 */
1265 WL_SHM_FORMAT_BGRA8888 = 0x34324142,
1266 /**
1267 * 32-bit xRGB format, [31:0] x:R:G:B 2:10:10:10 little endian
1268 */
1269 WL_SHM_FORMAT_XRGB2101010 = 0x30335258,
1270 /**
1271 * 32-bit xBGR format, [31:0] x:B:G:R 2:10:10:10 little endian
1272 */
1273 WL_SHM_FORMAT_XBGR2101010 = 0x30334258,
1274 /**
1275 * 32-bit RGBx format, [31:0] R:G:B:x 10:10:10:2 little endian
1276 */
1277 WL_SHM_FORMAT_RGBX1010102 = 0x30335852,
1278 /**
1279 * 32-bit BGRx format, [31:0] B:G:R:x 10:10:10:2 little endian
1280 */
1281 WL_SHM_FORMAT_BGRX1010102 = 0x30335842,
1282 /**
1283 * 32-bit ARGB format, [31:0] A:R:G:B 2:10:10:10 little endian
1284 */
1285 WL_SHM_FORMAT_ARGB2101010 = 0x30335241,
1286 /**
1287 * 32-bit ABGR format, [31:0] A:B:G:R 2:10:10:10 little endian
1288 */
1289 WL_SHM_FORMAT_ABGR2101010 = 0x30334241,
1290 /**
1291 * 32-bit RGBA format, [31:0] R:G:B:A 10:10:10:2 little endian
1292 */
1293 WL_SHM_FORMAT_RGBA1010102 = 0x30334152,
1294 /**
1295 * 32-bit BGRA format, [31:0] B:G:R:A 10:10:10:2 little endian
1296 */
1297 WL_SHM_FORMAT_BGRA1010102 = 0x30334142,
1298 /**
1299 * packed YCbCr format, [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian
1300 */
1301 WL_SHM_FORMAT_YUYV = 0x56595559,
1302 /**
1303 * packed YCbCr format, [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian
1304 */
1305 WL_SHM_FORMAT_YVYU = 0x55595659,
1306 /**
1307 * packed YCbCr format, [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian
1308 */
1309 WL_SHM_FORMAT_UYVY = 0x59565955,
1310 /**
1311 * packed YCbCr format, [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian
1312 */
1313 WL_SHM_FORMAT_VYUY = 0x59555956,
1314 /**
1315 * packed AYCbCr format, [31:0] A:Y:Cb:Cr 8:8:8:8 little endian
1316 */
1317 WL_SHM_FORMAT_AYUV = 0x56555941,
1318 /**
1319 * 2 plane YCbCr Cr:Cb format, 2x2 subsampled Cr:Cb plane
1320 */
1321 WL_SHM_FORMAT_NV12 = 0x3231564e,
1322 /**
1323 * 2 plane YCbCr Cb:Cr format, 2x2 subsampled Cb:Cr plane
1324 */
1325 WL_SHM_FORMAT_NV21 = 0x3132564e,
1326 /**
1327 * 2 plane YCbCr Cr:Cb format, 2x1 subsampled Cr:Cb plane
1328 */
1329 WL_SHM_FORMAT_NV16 = 0x3631564e,
1330 /**
1331 * 2 plane YCbCr Cb:Cr format, 2x1 subsampled Cb:Cr plane
1332 */
1333 WL_SHM_FORMAT_NV61 = 0x3136564e,
1334 /**
1335 * 3 plane YCbCr format, 4x4 subsampled Cb (1) and Cr (2) planes
1336 */
1337 WL_SHM_FORMAT_YUV410 = 0x39565559,
1338 /**
1339 * 3 plane YCbCr format, 4x4 subsampled Cr (1) and Cb (2) planes
1340 */
1341 WL_SHM_FORMAT_YVU410 = 0x39555659,
1342 /**
1343 * 3 plane YCbCr format, 4x1 subsampled Cb (1) and Cr (2) planes
1344 */
1345 WL_SHM_FORMAT_YUV411 = 0x31315559,
1346 /**
1347 * 3 plane YCbCr format, 4x1 subsampled Cr (1) and Cb (2) planes
1348 */
1349 WL_SHM_FORMAT_YVU411 = 0x31315659,
1350 /**
1351 * 3 plane YCbCr format, 2x2 subsampled Cb (1) and Cr (2) planes
1352 */
1353 WL_SHM_FORMAT_YUV420 = 0x32315559,
1354 /**
1355 * 3 plane YCbCr format, 2x2 subsampled Cr (1) and Cb (2) planes
1356 */
1357 WL_SHM_FORMAT_YVU420 = 0x32315659,
1358 /**
1359 * 3 plane YCbCr format, 2x1 subsampled Cb (1) and Cr (2) planes
1360 */
1361 WL_SHM_FORMAT_YUV422 = 0x36315559,
1362 /**
1363 * 3 plane YCbCr format, 2x1 subsampled Cr (1) and Cb (2) planes
1364 */
1365 WL_SHM_FORMAT_YVU422 = 0x36315659,
1366 /**
1367 * 3 plane YCbCr format, non-subsampled Cb (1) and Cr (2) planes
1368 */
1369 WL_SHM_FORMAT_YUV444 = 0x34325559,
1370 /**
1371 * 3 plane YCbCr format, non-subsampled Cr (1) and Cb (2) planes
1372 */
1373 WL_SHM_FORMAT_YVU444 = 0x34325659,
1374};
1375#endif /* WL_SHM_FORMAT_ENUM */
1376
1377/**
1378 * @ingroup iface_wl_shm
1379 * @struct wl_shm_interface
1380 */
1381struct wl_shm_interface {
1382 /**
1383 * create a shm pool
1384 *
1385 * Create a new wl_shm_pool object.
1386 *
1387 * The pool can be used to create shared memory based buffer
1388 * objects. The server will mmap size bytes of the passed file
1389 * descriptor, to use as backing memory for the pool.
1390 * @param id pool to create
1391 * @param fd file descriptor for the pool
1392 * @param size pool size, in bytes
1393 */
1394 void (*create_pool)(struct wl_client *client,
1395 struct wl_resource *resource,
1396 uint32_t id,
1397 int32_t fd,
1398 int32_t size);
1399};
1400
1401#define WL_SHM_FORMAT 0
1402
1403/**
1404 * @ingroup iface_wl_shm
1405 */
1406#define WL_SHM_FORMAT_SINCE_VERSION 1
1407
1408/**
1409 * @ingroup iface_wl_shm
1410 */
1411#define WL_SHM_CREATE_POOL_SINCE_VERSION 1
1412
1413/**
1414 * @ingroup iface_wl_shm
1415 * Sends an format event to the client owning the resource.
1416 * @param resource_ The client's resource
1417 * @param format buffer pixel format
1418 */
1419static inline void
1420wl_shm_send_format(struct wl_resource *resource_, uint32_t format)
1421{
1422 wl_resource_post_event(resource_, WL_SHM_FORMAT, format);
1423}
1424
1425/**
1426 * @ingroup iface_wl_buffer
1427 * @struct wl_buffer_interface
1428 */
1429struct wl_buffer_interface {
1430 /**
1431 * destroy a buffer
1432 *
1433 * Destroy a buffer. If and how you need to release the backing
1434 * storage is defined by the buffer factory interface.
1435 *
1436 * For possible side-effects to a surface, see wl_surface.attach.
1437 */
1438 void (*destroy)(struct wl_client *client,
1439 struct wl_resource *resource);
1440};
1441
1442#define WL_BUFFER_RELEASE 0
1443
1444/**
1445 * @ingroup iface_wl_buffer
1446 */
1447#define WL_BUFFER_RELEASE_SINCE_VERSION 1
1448
1449/**
1450 * @ingroup iface_wl_buffer
1451 */
1452#define WL_BUFFER_DESTROY_SINCE_VERSION 1
1453
1454/**
1455 * @ingroup iface_wl_buffer
1456 * Sends an release event to the client owning the resource.
1457 * @param resource_ The client's resource
1458 */
1459static inline void
1460wl_buffer_send_release(struct wl_resource *resource_)
1461{
1462 wl_resource_post_event(resource_, WL_BUFFER_RELEASE);
1463}
1464
1465#ifndef WL_DATA_OFFER_ERROR_ENUM
1466#define WL_DATA_OFFER_ERROR_ENUM
1467enum wl_data_offer_error {
1468 /**
1469 * finish request was called untimely
1470 */
1471 WL_DATA_OFFER_ERROR_INVALID_FINISH = 0,
1472 /**
1473 * action mask contains invalid values
1474 */
1475 WL_DATA_OFFER_ERROR_INVALID_ACTION_MASK = 1,
1476 /**
1477 * action argument has an invalid value
1478 */
1479 WL_DATA_OFFER_ERROR_INVALID_ACTION = 2,
1480 /**
1481 * offer doesn't accept this request
1482 */
1483 WL_DATA_OFFER_ERROR_INVALID_OFFER = 3,
1484};
1485#endif /* WL_DATA_OFFER_ERROR_ENUM */
1486
1487/**
1488 * @ingroup iface_wl_data_offer
1489 * @struct wl_data_offer_interface
1490 */
1491struct wl_data_offer_interface {
1492 /**
1493 * accept one of the offered mime types
1494 *
1495 * Indicate that the client can accept the given mime type, or
1496 * NULL for not accepted.
1497 *
1498 * For objects of version 2 or older, this request is used by the
1499 * client to give feedback whether the client can receive the given
1500 * mime type, or NULL if none is accepted; the feedback does not
1501 * determine whether the drag-and-drop operation succeeds or not.
1502 *
1503 * For objects of version 3 or newer, this request determines the
1504 * final result of the drag-and-drop operation. If the end result
1505 * is that no mime types were accepted, the drag-and-drop operation
1506 * will be cancelled and the corresponding drag source will receive
1507 * wl_data_source.cancelled. Clients may still use this event in
1508 * conjunction with wl_data_source.action for feedback.
1509 * @param serial serial number of the accept request
1510 * @param mime_type mime type accepted by the client
1511 */
1512 void (*accept)(struct wl_client *client,
1513 struct wl_resource *resource,
1514 uint32_t serial,
1515 const char *mime_type);
1516 /**
1517 * request that the data is transferred
1518 *
1519 * To transfer the offered data, the client issues this request
1520 * and indicates the mime type it wants to receive. The transfer
1521 * happens through the passed file descriptor (typically created
1522 * with the pipe system call). The source client writes the data in
1523 * the mime type representation requested and then closes the file
1524 * descriptor.
1525 *
1526 * The receiving client reads from the read end of the pipe until
1527 * EOF and then closes its end, at which point the transfer is
1528 * complete.
1529 *
1530 * This request may happen multiple times for different mime types,
1531 * both before and after wl_data_device.drop. Drag-and-drop
1532 * destination clients may preemptively fetch data or examine it
1533 * more closely to determine acceptance.
1534 * @param mime_type mime type desired by receiver
1535 * @param fd file descriptor for data transfer
1536 */
1537 void (*receive)(struct wl_client *client,
1538 struct wl_resource *resource,
1539 const char *mime_type,
1540 int32_t fd);
1541 /**
1542 * destroy data offer
1543 *
1544 * Destroy the data offer.
1545 */
1546 void (*destroy)(struct wl_client *client,
1547 struct wl_resource *resource);
1548 /**
1549 * the offer will no longer be used
1550 *
1551 * Notifies the compositor that the drag destination successfully
1552 * finished the drag-and-drop operation.
1553 *
1554 * Upon receiving this request, the compositor will emit
1555 * wl_data_source.dnd_finished on the drag source client.
1556 *
1557 * It is a client error to perform other requests than
1558 * wl_data_offer.destroy after this one. It is also an error to
1559 * perform this request after a NULL mime type has been set in
1560 * wl_data_offer.accept or no action was received through
1561 * wl_data_offer.action.
1562 * @since 3
1563 */
1564 void (*finish)(struct wl_client *client,
1565 struct wl_resource *resource);
1566 /**
1567 * set the available/preferred drag-and-drop actions
1568 *
1569 * Sets the actions that the destination side client supports for
1570 * this operation. This request may trigger the emission of
1571 * wl_data_source.action and wl_data_offer.action events if the
1572 * compositor needs to change the selected action.
1573 *
1574 * This request can be called multiple times throughout the
1575 * drag-and-drop operation, typically in response to
1576 * wl_data_device.enter or wl_data_device.motion events.
1577 *
1578 * This request determines the final result of the drag-and-drop
1579 * operation. If the end result is that no action is accepted, the
1580 * drag source will receive wl_drag_source.cancelled.
1581 *
1582 * The dnd_actions argument must contain only values expressed in
1583 * the wl_data_device_manager.dnd_actions enum, and the
1584 * preferred_action argument must only contain one of those values
1585 * set, otherwise it will result in a protocol error.
1586 *
1587 * While managing an "ask" action, the destination drag-and-drop
1588 * client may perform further wl_data_offer.receive requests, and
1589 * is expected to perform one last wl_data_offer.set_actions
1590 * request with a preferred action other than "ask" (and optionally
1591 * wl_data_offer.accept) before requesting wl_data_offer.finish, in
1592 * order to convey the action selected by the user. If the
1593 * preferred action is not in the wl_data_offer.source_actions
1594 * mask, an error will be raised.
1595 *
1596 * If the "ask" action is dismissed (e.g. user cancellation), the
1597 * client is expected to perform wl_data_offer.destroy right away.
1598 *
1599 * This request can only be made on drag-and-drop offers, a
1600 * protocol error will be raised otherwise.
1601 * @param dnd_actions actions supported by the destination client
1602 * @param preferred_action action preferred by the destination client
1603 * @since 3
1604 */
1605 void (*set_actions)(struct wl_client *client,
1606 struct wl_resource *resource,
1607 uint32_t dnd_actions,
1608 uint32_t preferred_action);
1609};
1610
1611#define WL_DATA_OFFER_OFFER 0
1612#define WL_DATA_OFFER_SOURCE_ACTIONS 1
1613#define WL_DATA_OFFER_ACTION 2
1614
1615/**
1616 * @ingroup iface_wl_data_offer
1617 */
1618#define WL_DATA_OFFER_OFFER_SINCE_VERSION 1
1619/**
1620 * @ingroup iface_wl_data_offer
1621 */
1622#define WL_DATA_OFFER_SOURCE_ACTIONS_SINCE_VERSION 3
1623/**
1624 * @ingroup iface_wl_data_offer
1625 */
1626#define WL_DATA_OFFER_ACTION_SINCE_VERSION 3
1627
1628/**
1629 * @ingroup iface_wl_data_offer
1630 */
1631#define WL_DATA_OFFER_ACCEPT_SINCE_VERSION 1
1632/**
1633 * @ingroup iface_wl_data_offer
1634 */
1635#define WL_DATA_OFFER_RECEIVE_SINCE_VERSION 1
1636/**
1637 * @ingroup iface_wl_data_offer
1638 */
1639#define WL_DATA_OFFER_DESTROY_SINCE_VERSION 1
1640/**
1641 * @ingroup iface_wl_data_offer
1642 */
1643#define WL_DATA_OFFER_FINISH_SINCE_VERSION 3
1644/**
1645 * @ingroup iface_wl_data_offer
1646 */
1647#define WL_DATA_OFFER_SET_ACTIONS_SINCE_VERSION 3
1648
1649/**
1650 * @ingroup iface_wl_data_offer
1651 * Sends an offer event to the client owning the resource.
1652 * @param resource_ The client's resource
1653 * @param mime_type offered mime type
1654 */
1655static inline void
1656wl_data_offer_send_offer(struct wl_resource *resource_, const char *mime_type)
1657{
1658 wl_resource_post_event(resource_, WL_DATA_OFFER_OFFER, mime_type);
1659}
1660
1661/**
1662 * @ingroup iface_wl_data_offer
1663 * Sends an source_actions event to the client owning the resource.
1664 * @param resource_ The client's resource
1665 * @param source_actions actions offered by the data source
1666 */
1667static inline void
1668wl_data_offer_send_source_actions(struct wl_resource *resource_, uint32_t source_actions)
1669{
1670 wl_resource_post_event(resource_, WL_DATA_OFFER_SOURCE_ACTIONS, source_actions);
1671}
1672
1673/**
1674 * @ingroup iface_wl_data_offer
1675 * Sends an action event to the client owning the resource.
1676 * @param resource_ The client's resource
1677 * @param dnd_action action selected by the compositor
1678 */
1679static inline void
1680wl_data_offer_send_action(struct wl_resource *resource_, uint32_t dnd_action)
1681{
1682 wl_resource_post_event(resource_, WL_DATA_OFFER_ACTION, dnd_action);
1683}
1684
1685#ifndef WL_DATA_SOURCE_ERROR_ENUM
1686#define WL_DATA_SOURCE_ERROR_ENUM
1687enum wl_data_source_error {
1688 /**
1689 * action mask contains invalid values
1690 */
1691 WL_DATA_SOURCE_ERROR_INVALID_ACTION_MASK = 0,
1692 /**
1693 * source doesn't accept this request
1694 */
1695 WL_DATA_SOURCE_ERROR_INVALID_SOURCE = 1,
1696};
1697#endif /* WL_DATA_SOURCE_ERROR_ENUM */
1698
1699/**
1700 * @ingroup iface_wl_data_source
1701 * @struct wl_data_source_interface
1702 */
1703struct wl_data_source_interface {
1704 /**
1705 * add an offered mime type
1706 *
1707 * This request adds a mime type to the set of mime types
1708 * advertised to targets. Can be called several times to offer
1709 * multiple types.
1710 * @param mime_type mime type offered by the data source
1711 */
1712 void (*offer)(struct wl_client *client,
1713 struct wl_resource *resource,
1714 const char *mime_type);
1715 /**
1716 * destroy the data source
1717 *
1718 * Destroy the data source.
1719 */
1720 void (*destroy)(struct wl_client *client,
1721 struct wl_resource *resource);
1722 /**
1723 * set the available drag-and-drop actions
1724 *
1725 * Sets the actions that the source side client supports for this
1726 * operation. This request may trigger wl_data_source.action and
1727 * wl_data_offer.action events if the compositor needs to change
1728 * the selected action.
1729 *
1730 * The dnd_actions argument must contain only values expressed in
1731 * the wl_data_device_manager.dnd_actions enum, otherwise it will
1732 * result in a protocol error.
1733 *
1734 * This request must be made once only, and can only be made on
1735 * sources used in drag-and-drop, so it must be performed before
1736 * wl_data_device.start_drag. Attempting to use the source other
1737 * than for drag-and-drop will raise a protocol error.
1738 * @param dnd_actions actions supported by the data source
1739 * @since 3
1740 */
1741 void (*set_actions)(struct wl_client *client,
1742 struct wl_resource *resource,
1743 uint32_t dnd_actions);
1744};
1745
1746#define WL_DATA_SOURCE_TARGET 0
1747#define WL_DATA_SOURCE_SEND 1
1748#define WL_DATA_SOURCE_CANCELLED 2
1749#define WL_DATA_SOURCE_DND_DROP_PERFORMED 3
1750#define WL_DATA_SOURCE_DND_FINISHED 4
1751#define WL_DATA_SOURCE_ACTION 5
1752
1753/**
1754 * @ingroup iface_wl_data_source
1755 */
1756#define WL_DATA_SOURCE_TARGET_SINCE_VERSION 1
1757/**
1758 * @ingroup iface_wl_data_source
1759 */
1760#define WL_DATA_SOURCE_SEND_SINCE_VERSION 1
1761/**
1762 * @ingroup iface_wl_data_source
1763 */
1764#define WL_DATA_SOURCE_CANCELLED_SINCE_VERSION 1
1765/**
1766 * @ingroup iface_wl_data_source
1767 */
1768#define WL_DATA_SOURCE_DND_DROP_PERFORMED_SINCE_VERSION 3
1769/**
1770 * @ingroup iface_wl_data_source
1771 */
1772#define WL_DATA_SOURCE_DND_FINISHED_SINCE_VERSION 3
1773/**
1774 * @ingroup iface_wl_data_source
1775 */
1776#define WL_DATA_SOURCE_ACTION_SINCE_VERSION 3
1777
1778/**
1779 * @ingroup iface_wl_data_source
1780 */
1781#define WL_DATA_SOURCE_OFFER_SINCE_VERSION 1
1782/**
1783 * @ingroup iface_wl_data_source
1784 */
1785#define WL_DATA_SOURCE_DESTROY_SINCE_VERSION 1
1786/**
1787 * @ingroup iface_wl_data_source
1788 */
1789#define WL_DATA_SOURCE_SET_ACTIONS_SINCE_VERSION 3
1790
1791/**
1792 * @ingroup iface_wl_data_source
1793 * Sends an target event to the client owning the resource.
1794 * @param resource_ The client's resource
1795 * @param mime_type mime type accepted by the target
1796 */
1797static inline void
1798wl_data_source_send_target(struct wl_resource *resource_, const char *mime_type)
1799{
1800 wl_resource_post_event(resource_, WL_DATA_SOURCE_TARGET, mime_type);
1801}
1802
1803/**
1804 * @ingroup iface_wl_data_source
1805 * Sends an send event to the client owning the resource.
1806 * @param resource_ The client's resource
1807 * @param mime_type mime type for the data
1808 * @param fd file descriptor for the data
1809 */
1810static inline void
1811wl_data_source_send_send(struct wl_resource *resource_, const char *mime_type, int32_t fd)
1812{
1813 wl_resource_post_event(resource_, WL_DATA_SOURCE_SEND, mime_type, fd);
1814}
1815
1816/**
1817 * @ingroup iface_wl_data_source
1818 * Sends an cancelled event to the client owning the resource.
1819 * @param resource_ The client's resource
1820 */
1821static inline void
1822wl_data_source_send_cancelled(struct wl_resource *resource_)
1823{
1824 wl_resource_post_event(resource_, WL_DATA_SOURCE_CANCELLED);
1825}
1826
1827/**
1828 * @ingroup iface_wl_data_source
1829 * Sends an dnd_drop_performed event to the client owning the resource.
1830 * @param resource_ The client's resource
1831 */
1832static inline void
1833wl_data_source_send_dnd_drop_performed(struct wl_resource *resource_)
1834{
1835 wl_resource_post_event(resource_, WL_DATA_SOURCE_DND_DROP_PERFORMED);
1836}
1837
1838/**
1839 * @ingroup iface_wl_data_source
1840 * Sends an dnd_finished event to the client owning the resource.
1841 * @param resource_ The client's resource
1842 */
1843static inline void
1844wl_data_source_send_dnd_finished(struct wl_resource *resource_)
1845{
1846 wl_resource_post_event(resource_, WL_DATA_SOURCE_DND_FINISHED);
1847}
1848
1849/**
1850 * @ingroup iface_wl_data_source
1851 * Sends an action event to the client owning the resource.
1852 * @param resource_ The client's resource
1853 * @param dnd_action action selected by the compositor
1854 */
1855static inline void
1856wl_data_source_send_action(struct wl_resource *resource_, uint32_t dnd_action)
1857{
1858 wl_resource_post_event(resource_, WL_DATA_SOURCE_ACTION, dnd_action);
1859}
1860
1861#ifndef WL_DATA_DEVICE_ERROR_ENUM
1862#define WL_DATA_DEVICE_ERROR_ENUM
1863enum wl_data_device_error {
1864 /**
1865 * given wl_surface has another role
1866 */
1867 WL_DATA_DEVICE_ERROR_ROLE = 0,
1868};
1869#endif /* WL_DATA_DEVICE_ERROR_ENUM */
1870
1871/**
1872 * @ingroup iface_wl_data_device
1873 * @struct wl_data_device_interface
1874 */
1875struct wl_data_device_interface {
1876 /**
1877 * start drag-and-drop operation
1878 *
1879 * This request asks the compositor to start a drag-and-drop
1880 * operation on behalf of the client.
1881 *
1882 * The source argument is the data source that provides the data
1883 * for the eventual data transfer. If source is NULL, enter, leave
1884 * and motion events are sent only to the client that initiated the
1885 * drag and the client is expected to handle the data passing
1886 * internally.
1887 *
1888 * The origin surface is the surface where the drag originates and
1889 * the client must have an active implicit grab that matches the
1890 * serial.
1891 *
1892 * The icon surface is an optional (can be NULL) surface that
1893 * provides an icon to be moved around with the cursor. Initially,
1894 * the top-left corner of the icon surface is placed at the cursor
1895 * hotspot, but subsequent wl_surface.attach request can move the
1896 * relative position. Attach requests must be confirmed with
1897 * wl_surface.commit as usual. The icon surface is given the role
1898 * of a drag-and-drop icon. If the icon surface already has another
1899 * role, it raises a protocol error.
1900 *
1901 * The current and pending input regions of the icon wl_surface are
1902 * cleared, and wl_surface.set_input_region is ignored until the
1903 * wl_surface is no longer used as the icon surface. When the use
1904 * as an icon ends, the current and pending input regions become
1905 * undefined, and the wl_surface is unmapped.
1906 * @param source data source for the eventual transfer
1907 * @param origin surface where the drag originates
1908 * @param icon drag-and-drop icon surface
1909 * @param serial serial number of the implicit grab on the origin
1910 */
1911 void (*start_drag)(struct wl_client *client,
1912 struct wl_resource *resource,
1913 struct wl_resource *source,
1914 struct wl_resource *origin,
1915 struct wl_resource *icon,
1916 uint32_t serial);
1917 /**
1918 * copy data to the selection
1919 *
1920 * This request asks the compositor to set the selection to the
1921 * data from the source on behalf of the client.
1922 *
1923 * To unset the selection, set the source to NULL.
1924 * @param source data source for the selection
1925 * @param serial serial number of the event that triggered this request
1926 */
1927 void (*set_selection)(struct wl_client *client,
1928 struct wl_resource *resource,
1929 struct wl_resource *source,
1930 uint32_t serial);
1931 /**
1932 * destroy data device
1933 *
1934 * This request destroys the data device.
1935 * @since 2
1936 */
1937 void (*release)(struct wl_client *client,
1938 struct wl_resource *resource);
1939};
1940
1941#define WL_DATA_DEVICE_DATA_OFFER 0
1942#define WL_DATA_DEVICE_ENTER 1
1943#define WL_DATA_DEVICE_LEAVE 2
1944#define WL_DATA_DEVICE_MOTION 3
1945#define WL_DATA_DEVICE_DROP 4
1946#define WL_DATA_DEVICE_SELECTION 5
1947
1948/**
1949 * @ingroup iface_wl_data_device
1950 */
1951#define WL_DATA_DEVICE_DATA_OFFER_SINCE_VERSION 1
1952/**
1953 * @ingroup iface_wl_data_device
1954 */
1955#define WL_DATA_DEVICE_ENTER_SINCE_VERSION 1
1956/**
1957 * @ingroup iface_wl_data_device
1958 */
1959#define WL_DATA_DEVICE_LEAVE_SINCE_VERSION 1
1960/**
1961 * @ingroup iface_wl_data_device
1962 */
1963#define WL_DATA_DEVICE_MOTION_SINCE_VERSION 1
1964/**
1965 * @ingroup iface_wl_data_device
1966 */
1967#define WL_DATA_DEVICE_DROP_SINCE_VERSION 1
1968/**
1969 * @ingroup iface_wl_data_device
1970 */
1971#define WL_DATA_DEVICE_SELECTION_SINCE_VERSION 1
1972
1973/**
1974 * @ingroup iface_wl_data_device
1975 */
1976#define WL_DATA_DEVICE_START_DRAG_SINCE_VERSION 1
1977/**
1978 * @ingroup iface_wl_data_device
1979 */
1980#define WL_DATA_DEVICE_SET_SELECTION_SINCE_VERSION 1
1981/**
1982 * @ingroup iface_wl_data_device
1983 */
1984#define WL_DATA_DEVICE_RELEASE_SINCE_VERSION 2
1985
1986/**
1987 * @ingroup iface_wl_data_device
1988 * Sends an data_offer event to the client owning the resource.
1989 * @param resource_ The client's resource
1990 * @param id the new data_offer object
1991 */
1992static inline void
1993wl_data_device_send_data_offer(struct wl_resource *resource_, struct wl_resource *id)
1994{
1995 wl_resource_post_event(resource_, WL_DATA_DEVICE_DATA_OFFER, id);
1996}
1997
1998/**
1999 * @ingroup iface_wl_data_device
2000 * Sends an enter event to the client owning the resource.
2001 * @param resource_ The client's resource
2002 * @param serial serial number of the enter event
2003 * @param surface client surface entered
2004 * @param x surface-local x coordinate
2005 * @param y surface-local y coordinate
2006 * @param id source data_offer object
2007 */
2008static inline void
2009wl_data_device_send_enter(struct wl_resource *resource_, uint32_t serial, struct wl_resource *surface, wl_fixed_t x, wl_fixed_t y, struct wl_resource *id)
2010{
2011 wl_resource_post_event(resource_, WL_DATA_DEVICE_ENTER, serial, surface, x, y, id);
2012}
2013
2014/**
2015 * @ingroup iface_wl_data_device
2016 * Sends an leave event to the client owning the resource.
2017 * @param resource_ The client's resource
2018 */
2019static inline void
2020wl_data_device_send_leave(struct wl_resource *resource_)
2021{
2022 wl_resource_post_event(resource_, WL_DATA_DEVICE_LEAVE);
2023}
2024
2025/**
2026 * @ingroup iface_wl_data_device
2027 * Sends an motion event to the client owning the resource.
2028 * @param resource_ The client's resource
2029 * @param time timestamp with millisecond granularity
2030 * @param x surface-local x coordinate
2031 * @param y surface-local y coordinate
2032 */
2033static inline void
2034wl_data_device_send_motion(struct wl_resource *resource_, uint32_t time, wl_fixed_t x, wl_fixed_t y)
2035{
2036 wl_resource_post_event(resource_, WL_DATA_DEVICE_MOTION, time, x, y);
2037}
2038
2039/**
2040 * @ingroup iface_wl_data_device
2041 * Sends an drop event to the client owning the resource.
2042 * @param resource_ The client's resource
2043 */
2044static inline void
2045wl_data_device_send_drop(struct wl_resource *resource_)
2046{
2047 wl_resource_post_event(resource_, WL_DATA_DEVICE_DROP);
2048}
2049
2050/**
2051 * @ingroup iface_wl_data_device
2052 * Sends an selection event to the client owning the resource.
2053 * @param resource_ The client's resource
2054 * @param id selection data_offer object
2055 */
2056static inline void
2057wl_data_device_send_selection(struct wl_resource *resource_, struct wl_resource *id)
2058{
2059 wl_resource_post_event(resource_, WL_DATA_DEVICE_SELECTION, id);
2060}
2061
2062#ifndef WL_DATA_DEVICE_MANAGER_DND_ACTION_ENUM
2063#define WL_DATA_DEVICE_MANAGER_DND_ACTION_ENUM
2064/**
2065 * @ingroup iface_wl_data_device_manager
2066 * drag and drop actions
2067 *
2068 * This is a bitmask of the available/preferred actions in a
2069 * drag-and-drop operation.
2070 *
2071 * In the compositor, the selected action is a result of matching the
2072 * actions offered by the source and destination sides. "action" events
2073 * with a "none" action will be sent to both source and destination if
2074 * there is no match. All further checks will effectively happen on
2075 * (source actions ∩ destination actions).
2076 *
2077 * In addition, compositors may also pick different actions in
2078 * reaction to key modifiers being pressed. One common design that
2079 * is used in major toolkits (and the behavior recommended for
2080 * compositors) is:
2081 *
2082 * - If no modifiers are pressed, the first match (in bit order)
2083 * will be used.
2084 * - Pressing Shift selects "move", if enabled in the mask.
2085 * - Pressing Control selects "copy", if enabled in the mask.
2086 *
2087 * Behavior beyond that is considered implementation-dependent.
2088 * Compositors may for example bind other modifiers (like Alt/Meta)
2089 * or drags initiated with other buttons than BTN_LEFT to specific
2090 * actions (e.g. "ask").
2091 */
2092enum wl_data_device_manager_dnd_action {
2093 /**
2094 * no action
2095 */
2096 WL_DATA_DEVICE_MANAGER_DND_ACTION_NONE = 0,
2097 /**
2098 * copy action
2099 */
2100 WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY = 1,
2101 /**
2102 * move action
2103 */
2104 WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE = 2,
2105 /**
2106 * ask action
2107 */
2108 WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK = 4,
2109};
2110#endif /* WL_DATA_DEVICE_MANAGER_DND_ACTION_ENUM */
2111
2112/**
2113 * @ingroup iface_wl_data_device_manager
2114 * @struct wl_data_device_manager_interface
2115 */
2116struct wl_data_device_manager_interface {
2117 /**
2118 * create a new data source
2119 *
2120 * Create a new data source.
2121 * @param id data source to create
2122 */
2123 void (*create_data_source)(struct wl_client *client,
2124 struct wl_resource *resource,
2125 uint32_t id);
2126 /**
2127 * create a new data device
2128 *
2129 * Create a new data device for a given seat.
2130 * @param id data device to create
2131 * @param seat seat associated with the data device
2132 */
2133 void (*get_data_device)(struct wl_client *client,
2134 struct wl_resource *resource,
2135 uint32_t id,
2136 struct wl_resource *seat);
2137};
2138
2139
2140/**
2141 * @ingroup iface_wl_data_device_manager
2142 */
2143#define WL_DATA_DEVICE_MANAGER_CREATE_DATA_SOURCE_SINCE_VERSION 1
2144/**
2145 * @ingroup iface_wl_data_device_manager
2146 */
2147#define WL_DATA_DEVICE_MANAGER_GET_DATA_DEVICE_SINCE_VERSION 1
2148
2149#ifndef WL_SHELL_ERROR_ENUM
2150#define WL_SHELL_ERROR_ENUM
2151enum wl_shell_error {
2152 /**
2153 * given wl_surface has another role
2154 */
2155 WL_SHELL_ERROR_ROLE = 0,
2156};
2157#endif /* WL_SHELL_ERROR_ENUM */
2158
2159/**
2160 * @ingroup iface_wl_shell
2161 * @struct wl_shell_interface
2162 */
2163struct wl_shell_interface {
2164 /**
2165 * create a shell surface from a surface
2166 *
2167 * Create a shell surface for an existing surface. This gives the
2168 * wl_surface the role of a shell surface. If the wl_surface
2169 * already has another role, it raises a protocol error.
2170 *
2171 * Only one shell surface can be associated with a given surface.
2172 * @param id shell surface to create
2173 * @param surface surface to be given the shell surface role
2174 */
2175 void (*get_shell_surface)(struct wl_client *client,
2176 struct wl_resource *resource,
2177 uint32_t id,
2178 struct wl_resource *surface);
2179};
2180
2181
2182/**
2183 * @ingroup iface_wl_shell
2184 */
2185#define WL_SHELL_GET_SHELL_SURFACE_SINCE_VERSION 1
2186
2187#ifndef WL_SHELL_SURFACE_RESIZE_ENUM
2188#define WL_SHELL_SURFACE_RESIZE_ENUM
2189/**
2190 * @ingroup iface_wl_shell_surface
2191 * edge values for resizing
2192 *
2193 * These values are used to indicate which edge of a surface
2194 * is being dragged in a resize operation. The server may
2195 * use this information to adapt its behavior, e.g. choose
2196 * an appropriate cursor image.
2197 */
2198enum wl_shell_surface_resize {
2199 /**
2200 * no edge
2201 */
2202 WL_SHELL_SURFACE_RESIZE_NONE = 0,
2203 /**
2204 * top edge
2205 */
2206 WL_SHELL_SURFACE_RESIZE_TOP = 1,
2207 /**
2208 * bottom edge
2209 */
2210 WL_SHELL_SURFACE_RESIZE_BOTTOM = 2,
2211 /**
2212 * left edge
2213 */
2214 WL_SHELL_SURFACE_RESIZE_LEFT = 4,
2215 /**
2216 * top and left edges
2217 */
2218 WL_SHELL_SURFACE_RESIZE_TOP_LEFT = 5,
2219 /**
2220 * bottom and left edges
2221 */
2222 WL_SHELL_SURFACE_RESIZE_BOTTOM_LEFT = 6,
2223 /**
2224 * right edge
2225 */
2226 WL_SHELL_SURFACE_RESIZE_RIGHT = 8,
2227 /**
2228 * top and right edges
2229 */
2230 WL_SHELL_SURFACE_RESIZE_TOP_RIGHT = 9,
2231 /**
2232 * bottom and right edges
2233 */
2234 WL_SHELL_SURFACE_RESIZE_BOTTOM_RIGHT = 10,
2235};
2236#endif /* WL_SHELL_SURFACE_RESIZE_ENUM */
2237
2238#ifndef WL_SHELL_SURFACE_TRANSIENT_ENUM
2239#define WL_SHELL_SURFACE_TRANSIENT_ENUM
2240/**
2241 * @ingroup iface_wl_shell_surface
2242 * details of transient behaviour
2243 *
2244 * These flags specify details of the expected behaviour
2245 * of transient surfaces. Used in the set_transient request.
2246 */
2247enum wl_shell_surface_transient {
2248 /**
2249 * do not set keyboard focus
2250 */
2251 WL_SHELL_SURFACE_TRANSIENT_INACTIVE = 0x1,
2252};
2253#endif /* WL_SHELL_SURFACE_TRANSIENT_ENUM */
2254
2255#ifndef WL_SHELL_SURFACE_FULLSCREEN_METHOD_ENUM
2256#define WL_SHELL_SURFACE_FULLSCREEN_METHOD_ENUM
2257/**
2258 * @ingroup iface_wl_shell_surface
2259 * different method to set the surface fullscreen
2260 *
2261 * Hints to indicate to the compositor how to deal with a conflict
2262 * between the dimensions of the surface and the dimensions of the
2263 * output. The compositor is free to ignore this parameter.
2264 */
2265enum wl_shell_surface_fullscreen_method {
2266 /**
2267 * no preference, apply default policy
2268 */
2269 WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT = 0,
2270 /**
2271 * scale, preserve the surface's aspect ratio and center on output
2272 */
2273 WL_SHELL_SURFACE_FULLSCREEN_METHOD_SCALE = 1,
2274 /**
2275 * switch output mode to the smallest mode that can fit the surface, add black borders to compensate size mismatch
2276 */
2277 WL_SHELL_SURFACE_FULLSCREEN_METHOD_DRIVER = 2,
2278 /**
2279 * no upscaling, center on output and add black borders to compensate size mismatch
2280 */
2281 WL_SHELL_SURFACE_FULLSCREEN_METHOD_FILL = 3,
2282};
2283#endif /* WL_SHELL_SURFACE_FULLSCREEN_METHOD_ENUM */
2284
2285/**
2286 * @ingroup iface_wl_shell_surface
2287 * @struct wl_shell_surface_interface
2288 */
2289struct wl_shell_surface_interface {
2290 /**
2291 * respond to a ping event
2292 *
2293 * A client must respond to a ping event with a pong request or
2294 * the client may be deemed unresponsive.
2295 * @param serial serial number of the ping event
2296 */
2297 void (*pong)(struct wl_client *client,
2298 struct wl_resource *resource,
2299 uint32_t serial);
2300 /**
2301 * start an interactive move
2302 *
2303 * Start a pointer-driven move of the surface.
2304 *
2305 * This request must be used in response to a button press event.
2306 * The server may ignore move requests depending on the state of
2307 * the surface (e.g. fullscreen or maximized).
2308 * @param seat seat whose pointer is used
2309 * @param serial serial number of the implicit grab on the pointer
2310 */
2311 void (*move)(struct wl_client *client,
2312 struct wl_resource *resource,
2313 struct wl_resource *seat,
2314 uint32_t serial);
2315 /**
2316 * start an interactive resize
2317 *
2318 * Start a pointer-driven resizing of the surface.
2319 *
2320 * This request must be used in response to a button press event.
2321 * The server may ignore resize requests depending on the state of
2322 * the surface (e.g. fullscreen or maximized).
2323 * @param seat seat whose pointer is used
2324 * @param serial serial number of the implicit grab on the pointer
2325 * @param edges which edge or corner is being dragged
2326 */
2327 void (*resize)(struct wl_client *client,
2328 struct wl_resource *resource,
2329 struct wl_resource *seat,
2330 uint32_t serial,
2331 uint32_t edges);
2332 /**
2333 * make the surface a toplevel surface
2334 *
2335 * Map the surface as a toplevel surface.
2336 *
2337 * A toplevel surface is not fullscreen, maximized or transient.
2338 */
2339 void (*set_toplevel)(struct wl_client *client,
2340 struct wl_resource *resource);
2341 /**
2342 * make the surface a transient surface
2343 *
2344 * Map the surface relative to an existing surface.
2345 *
2346 * The x and y arguments specify the location of the upper left
2347 * corner of the surface relative to the upper left corner of the
2348 * parent surface, in surface-local coordinates.
2349 *
2350 * The flags argument controls details of the transient behaviour.
2351 * @param parent parent surface
2352 * @param x surface-local x coordinate
2353 * @param y surface-local y coordinate
2354 * @param flags transient surface behavior
2355 */
2356 void (*set_transient)(struct wl_client *client,
2357 struct wl_resource *resource,
2358 struct wl_resource *parent,
2359 int32_t x,
2360 int32_t y,
2361 uint32_t flags);
2362 /**
2363 * make the surface a fullscreen surface
2364 *
2365 * Map the surface as a fullscreen surface.
2366 *
2367 * If an output parameter is given then the surface will be made
2368 * fullscreen on that output. If the client does not specify the
2369 * output then the compositor will apply its policy - usually
2370 * choosing the output on which the surface has the biggest surface
2371 * area.
2372 *
2373 * The client may specify a method to resolve a size conflict
2374 * between the output size and the surface size - this is provided
2375 * through the method parameter.
2376 *
2377 * The framerate parameter is used only when the method is set to
2378 * "driver", to indicate the preferred framerate. A value of 0
2379 * indicates that the client does not care about framerate. The
2380 * framerate is specified in mHz, that is framerate of 60000 is
2381 * 60Hz.
2382 *
2383 * A method of "scale" or "driver" implies a scaling operation of
2384 * the surface, either via a direct scaling operation or a change
2385 * of the output mode. This will override any kind of output
2386 * scaling, so that mapping a surface with a buffer size equal to
2387 * the mode can fill the screen independent of buffer_scale.
2388 *
2389 * A method of "fill" means we don't scale up the buffer, however
2390 * any output scale is applied. This means that you may run into an
2391 * edge case where the application maps a buffer with the same size
2392 * of the output mode but buffer_scale 1 (thus making a surface
2393 * larger than the output). In this case it is allowed to downscale
2394 * the results to fit the screen.
2395 *
2396 * The compositor must reply to this request with a configure event
2397 * with the dimensions for the output on which the surface will be
2398 * made fullscreen.
2399 * @param method method for resolving size conflict
2400 * @param framerate framerate in mHz
2401 * @param output output on which the surface is to be fullscreen
2402 */
2403 void (*set_fullscreen)(struct wl_client *client,
2404 struct wl_resource *resource,
2405 uint32_t method,
2406 uint32_t framerate,
2407 struct wl_resource *output);
2408 /**
2409 * make the surface a popup surface
2410 *
2411 * Map the surface as a popup.
2412 *
2413 * A popup surface is a transient surface with an added pointer
2414 * grab.
2415 *
2416 * An existing implicit grab will be changed to owner-events mode,
2417 * and the popup grab will continue after the implicit grab ends
2418 * (i.e. releasing the mouse button does not cause the popup to be
2419 * unmapped).
2420 *
2421 * The popup grab continues until the window is destroyed or a
2422 * mouse button is pressed in any other client's window. A click in
2423 * any of the client's surfaces is reported as normal, however,
2424 * clicks in other clients' surfaces will be discarded and trigger
2425 * the callback.
2426 *
2427 * The x and y arguments specify the location of the upper left
2428 * corner of the surface relative to the upper left corner of the
2429 * parent surface, in surface-local coordinates.
2430 * @param seat seat whose pointer is used
2431 * @param serial serial number of the implicit grab on the pointer
2432 * @param parent parent surface
2433 * @param x surface-local x coordinate
2434 * @param y surface-local y coordinate
2435 * @param flags transient surface behavior
2436 */
2437 void (*set_popup)(struct wl_client *client,
2438 struct wl_resource *resource,
2439 struct wl_resource *seat,
2440 uint32_t serial,
2441 struct wl_resource *parent,
2442 int32_t x,
2443 int32_t y,
2444 uint32_t flags);
2445 /**
2446 * make the surface a maximized surface
2447 *
2448 * Map the surface as a maximized surface.
2449 *
2450 * If an output parameter is given then the surface will be
2451 * maximized on that output. If the client does not specify the
2452 * output then the compositor will apply its policy - usually
2453 * choosing the output on which the surface has the biggest surface
2454 * area.
2455 *
2456 * The compositor will reply with a configure event telling the
2457 * expected new surface size. The operation is completed on the
2458 * next buffer attach to this surface.
2459 *
2460 * A maximized surface typically fills the entire output it is
2461 * bound to, except for desktop elements such as panels. This is
2462 * the main difference between a maximized shell surface and a
2463 * fullscreen shell surface.
2464 *
2465 * The details depend on the compositor implementation.
2466 * @param output output on which the surface is to be maximized
2467 */
2468 void (*set_maximized)(struct wl_client *client,
2469 struct wl_resource *resource,
2470 struct wl_resource *output);
2471 /**
2472 * set surface title
2473 *
2474 * Set a short title for the surface.
2475 *
2476 * This string may be used to identify the surface in a task bar,
2477 * window list, or other user interface elements provided by the
2478 * compositor.
2479 *
2480 * The string must be encoded in UTF-8.
2481 * @param title surface title
2482 */
2483 void (*set_title)(struct wl_client *client,
2484 struct wl_resource *resource,
2485 const char *title);
2486 /**
2487 * set surface class
2488 *
2489 * Set a class for the surface.
2490 *
2491 * The surface class identifies the general class of applications
2492 * to which the surface belongs. A common convention is to use the
2493 * file name (or the full path if it is a non-standard location) of
2494 * the application's .desktop file as the class.
2495 * @param class_ surface class
2496 */
2497 void (*set_class)(struct wl_client *client,
2498 struct wl_resource *resource,
2499 const char *class_);
2500};
2501
2502#define WL_SHELL_SURFACE_PING 0
2503#define WL_SHELL_SURFACE_CONFIGURE 1
2504#define WL_SHELL_SURFACE_POPUP_DONE 2
2505
2506/**
2507 * @ingroup iface_wl_shell_surface
2508 */
2509#define WL_SHELL_SURFACE_PING_SINCE_VERSION 1
2510/**
2511 * @ingroup iface_wl_shell_surface
2512 */
2513#define WL_SHELL_SURFACE_CONFIGURE_SINCE_VERSION 1
2514/**
2515 * @ingroup iface_wl_shell_surface
2516 */
2517#define WL_SHELL_SURFACE_POPUP_DONE_SINCE_VERSION 1
2518
2519/**
2520 * @ingroup iface_wl_shell_surface
2521 */
2522#define WL_SHELL_SURFACE_PONG_SINCE_VERSION 1
2523/**
2524 * @ingroup iface_wl_shell_surface
2525 */
2526#define WL_SHELL_SURFACE_MOVE_SINCE_VERSION 1
2527/**
2528 * @ingroup iface_wl_shell_surface
2529 */
2530#define WL_SHELL_SURFACE_RESIZE_SINCE_VERSION 1
2531/**
2532 * @ingroup iface_wl_shell_surface
2533 */
2534#define WL_SHELL_SURFACE_SET_TOPLEVEL_SINCE_VERSION 1
2535/**
2536 * @ingroup iface_wl_shell_surface
2537 */
2538#define WL_SHELL_SURFACE_SET_TRANSIENT_SINCE_VERSION 1
2539/**
2540 * @ingroup iface_wl_shell_surface
2541 */
2542#define WL_SHELL_SURFACE_SET_FULLSCREEN_SINCE_VERSION 1
2543/**
2544 * @ingroup iface_wl_shell_surface
2545 */
2546#define WL_SHELL_SURFACE_SET_POPUP_SINCE_VERSION 1
2547/**
2548 * @ingroup iface_wl_shell_surface
2549 */
2550#define WL_SHELL_SURFACE_SET_MAXIMIZED_SINCE_VERSION 1
2551/**
2552 * @ingroup iface_wl_shell_surface
2553 */
2554#define WL_SHELL_SURFACE_SET_TITLE_SINCE_VERSION 1
2555/**
2556 * @ingroup iface_wl_shell_surface
2557 */
2558#define WL_SHELL_SURFACE_SET_CLASS_SINCE_VERSION 1
2559
2560/**
2561 * @ingroup iface_wl_shell_surface
2562 * Sends an ping event to the client owning the resource.
2563 * @param resource_ The client's resource
2564 * @param serial serial number of the ping
2565 */
2566static inline void
2567wl_shell_surface_send_ping(struct wl_resource *resource_, uint32_t serial)
2568{
2569 wl_resource_post_event(resource_, WL_SHELL_SURFACE_PING, serial);
2570}
2571
2572/**
2573 * @ingroup iface_wl_shell_surface
2574 * Sends an configure event to the client owning the resource.
2575 * @param resource_ The client's resource
2576 * @param edges how the surface was resized
2577 * @param width new width of the surface
2578 * @param height new height of the surface
2579 */
2580static inline void
2581wl_shell_surface_send_configure(struct wl_resource *resource_, uint32_t edges, int32_t width, int32_t height)
2582{
2583 wl_resource_post_event(resource_, WL_SHELL_SURFACE_CONFIGURE, edges, width, height);
2584}
2585
2586/**
2587 * @ingroup iface_wl_shell_surface
2588 * Sends an popup_done event to the client owning the resource.
2589 * @param resource_ The client's resource
2590 */
2591static inline void
2592wl_shell_surface_send_popup_done(struct wl_resource *resource_)
2593{
2594 wl_resource_post_event(resource_, WL_SHELL_SURFACE_POPUP_DONE);
2595}
2596
2597#ifndef WL_SURFACE_ERROR_ENUM
2598#define WL_SURFACE_ERROR_ENUM
2599/**
2600 * @ingroup iface_wl_surface
2601 * wl_surface error values
2602 *
2603 * These errors can be emitted in response to wl_surface requests.
2604 */
2605enum wl_surface_error {
2606 /**
2607 * buffer scale value is invalid
2608 */
2609 WL_SURFACE_ERROR_INVALID_SCALE = 0,
2610 /**
2611 * buffer transform value is invalid
2612 */
2613 WL_SURFACE_ERROR_INVALID_TRANSFORM = 1,
2614};
2615#endif /* WL_SURFACE_ERROR_ENUM */
2616
2617/**
2618 * @ingroup iface_wl_surface
2619 * @struct wl_surface_interface
2620 */
2621struct wl_surface_interface {
2622 /**
2623 * delete surface
2624 *
2625 * Deletes the surface and invalidates its object ID.
2626 */
2627 void (*destroy)(struct wl_client *client,
2628 struct wl_resource *resource);
2629 /**
2630 * set the surface contents
2631 *
2632 * Set a buffer as the content of this surface.
2633 *
2634 * The new size of the surface is calculated based on the buffer
2635 * size transformed by the inverse buffer_transform and the inverse
2636 * buffer_scale. This means that the supplied buffer must be an
2637 * integer multiple of the buffer_scale.
2638 *
2639 * The x and y arguments specify the location of the new pending
2640 * buffer's upper left corner, relative to the current buffer's
2641 * upper left corner, in surface-local coordinates. In other words,
2642 * the x and y, combined with the new surface size define in which
2643 * directions the surface's size changes.
2644 *
2645 * Surface contents are double-buffered state, see
2646 * wl_surface.commit.
2647 *
2648 * The initial surface contents are void; there is no content.
2649 * wl_surface.attach assigns the given wl_buffer as the pending
2650 * wl_buffer. wl_surface.commit makes the pending wl_buffer the new
2651 * surface contents, and the size of the surface becomes the size
2652 * calculated from the wl_buffer, as described above. After commit,
2653 * there is no pending buffer until the next attach.
2654 *
2655 * Committing a pending wl_buffer allows the compositor to read the
2656 * pixels in the wl_buffer. The compositor may access the pixels at
2657 * any time after the wl_surface.commit request. When the
2658 * compositor will not access the pixels anymore, it will send the
2659 * wl_buffer.release event. Only after receiving wl_buffer.release,
2660 * the client may reuse the wl_buffer. A wl_buffer that has been
2661 * attached and then replaced by another attach instead of
2662 * committed will not receive a release event, and is not used by
2663 * the compositor.
2664 *
2665 * Destroying the wl_buffer after wl_buffer.release does not change
2666 * the surface contents. However, if the client destroys the
2667 * wl_buffer before receiving the wl_buffer.release event, the
2668 * surface contents become undefined immediately.
2669 *
2670 * If wl_surface.attach is sent with a NULL wl_buffer, the
2671 * following wl_surface.commit will remove the surface content.
2672 * @param buffer buffer of surface contents
2673 * @param x surface-local x coordinate
2674 * @param y surface-local y coordinate
2675 */
2676 void (*attach)(struct wl_client *client,
2677 struct wl_resource *resource,
2678 struct wl_resource *buffer,
2679 int32_t x,
2680 int32_t y);
2681 /**
2682 * mark part of the surface damaged
2683 *
2684 * This request is used to describe the regions where the pending
2685 * buffer is different from the current surface contents, and where
2686 * the surface therefore needs to be repainted. The compositor
2687 * ignores the parts of the damage that fall outside of the
2688 * surface.
2689 *
2690 * Damage is double-buffered state, see wl_surface.commit.
2691 *
2692 * The damage rectangle is specified in surface-local coordinates,
2693 * where x and y specify the upper left corner of the damage
2694 * rectangle.
2695 *
2696 * The initial value for pending damage is empty: no damage.
2697 * wl_surface.damage adds pending damage: the new pending damage is
2698 * the union of old pending damage and the given rectangle.
2699 *
2700 * wl_surface.commit assigns pending damage as the current damage,
2701 * and clears pending damage. The server will clear the current
2702 * damage as it repaints the surface.
2703 *
2704 * Alternatively, damage can be posted with
2705 * wl_surface.damage_buffer which uses buffer coordinates instead
2706 * of surface coordinates, and is probably the preferred and
2707 * intuitive way of doing this.
2708 * @param x surface-local x coordinate
2709 * @param y surface-local y coordinate
2710 * @param width width of damage rectangle
2711 * @param height height of damage rectangle
2712 */
2713 void (*damage)(struct wl_client *client,
2714 struct wl_resource *resource,
2715 int32_t x,
2716 int32_t y,
2717 int32_t width,
2718 int32_t height);
2719 /**
2720 * request a frame throttling hint
2721 *
2722 * Request a notification when it is a good time to start drawing
2723 * a new frame, by creating a frame callback. This is useful for
2724 * throttling redrawing operations, and driving animations.
2725 *
2726 * When a client is animating on a wl_surface, it can use the
2727 * 'frame' request to get notified when it is a good time to draw
2728 * and commit the next frame of animation. If the client commits an
2729 * update earlier than that, it is likely that some updates will
2730 * not make it to the display, and the client is wasting resources
2731 * by drawing too often.
2732 *
2733 * The frame request will take effect on the next
2734 * wl_surface.commit. The notification will only be posted for one
2735 * frame unless requested again. For a wl_surface, the
2736 * notifications are posted in the order the frame requests were
2737 * committed.
2738 *
2739 * The server must send the notifications so that a client will not
2740 * send excessive updates, while still allowing the highest
2741 * possible update rate for clients that wait for the reply before
2742 * drawing again. The server should give some time for the client
2743 * to draw and commit after sending the frame callback events to
2744 * let it hit the next output refresh.
2745 *
2746 * A server should avoid signaling the frame callbacks if the
2747 * surface is not visible in any way, e.g. the surface is
2748 * off-screen, or completely obscured by other opaque surfaces.
2749 *
2750 * The object returned by this request will be destroyed by the
2751 * compositor after the callback is fired and as such the client
2752 * must not attempt to use it after that point.
2753 *
2754 * The callback_data passed in the callback is the current time, in
2755 * milliseconds, with an undefined base.
2756 * @param callback callback object for the frame request
2757 */
2758 void (*frame)(struct wl_client *client,
2759 struct wl_resource *resource,
2760 uint32_t callback);
2761 /**
2762 * set opaque region
2763 *
2764 * This request sets the region of the surface that contains
2765 * opaque content.
2766 *
2767 * The opaque region is an optimization hint for the compositor
2768 * that lets it optimize the redrawing of content behind opaque
2769 * regions. Setting an opaque region is not required for correct
2770 * behaviour, but marking transparent content as opaque will result
2771 * in repaint artifacts.
2772 *
2773 * The opaque region is specified in surface-local coordinates.
2774 *
2775 * The compositor ignores the parts of the opaque region that fall
2776 * outside of the surface.
2777 *
2778 * Opaque region is double-buffered state, see wl_surface.commit.
2779 *
2780 * wl_surface.set_opaque_region changes the pending opaque region.
2781 * wl_surface.commit copies the pending region to the current
2782 * region. Otherwise, the pending and current regions are never
2783 * changed.
2784 *
2785 * The initial value for an opaque region is empty. Setting the
2786 * pending opaque region has copy semantics, and the wl_region
2787 * object can be destroyed immediately. A NULL wl_region causes the
2788 * pending opaque region to be set to empty.
2789 * @param region opaque region of the surface
2790 */
2791 void (*set_opaque_region)(struct wl_client *client,
2792 struct wl_resource *resource,
2793 struct wl_resource *region);
2794 /**
2795 * set input region
2796 *
2797 * This request sets the region of the surface that can receive
2798 * pointer and touch events.
2799 *
2800 * Input events happening outside of this region will try the next
2801 * surface in the server surface stack. The compositor ignores the
2802 * parts of the input region that fall outside of the surface.
2803 *
2804 * The input region is specified in surface-local coordinates.
2805 *
2806 * Input region is double-buffered state, see wl_surface.commit.
2807 *
2808 * wl_surface.set_input_region changes the pending input region.
2809 * wl_surface.commit copies the pending region to the current
2810 * region. Otherwise the pending and current regions are never
2811 * changed, except cursor and icon surfaces are special cases, see
2812 * wl_pointer.set_cursor and wl_data_device.start_drag.
2813 *
2814 * The initial value for an input region is infinite. That means
2815 * the whole surface will accept input. Setting the pending input
2816 * region has copy semantics, and the wl_region object can be
2817 * destroyed immediately. A NULL wl_region causes the input region
2818 * to be set to infinite.
2819 * @param region input region of the surface
2820 */
2821 void (*set_input_region)(struct wl_client *client,
2822 struct wl_resource *resource,
2823 struct wl_resource *region);
2824 /**
2825 * commit pending surface state
2826 *
2827 * Surface state (input, opaque, and damage regions, attached
2828 * buffers, etc.) is double-buffered. Protocol requests modify the
2829 * pending state, as opposed to the current state in use by the
2830 * compositor. A commit request atomically applies all pending
2831 * state, replacing the current state. After commit, the new
2832 * pending state is as documented for each related request.
2833 *
2834 * On commit, a pending wl_buffer is applied first, and all other
2835 * state second. This means that all coordinates in double-buffered
2836 * state are relative to the new wl_buffer coming into use, except
2837 * for wl_surface.attach itself. If there is no pending wl_buffer,
2838 * the coordinates are relative to the current surface contents.
2839 *
2840 * All requests that need a commit to become effective are
2841 * documented to affect double-buffered state.
2842 *
2843 * Other interfaces may add further double-buffered surface state.
2844 */
2845 void (*commit)(struct wl_client *client,
2846 struct wl_resource *resource);
2847 /**
2848 * sets the buffer transformation
2849 *
2850 * This request sets an optional transformation on how the
2851 * compositor interprets the contents of the buffer attached to the
2852 * surface. The accepted values for the transform parameter are the
2853 * values for wl_output.transform.
2854 *
2855 * Buffer transform is double-buffered state, see
2856 * wl_surface.commit.
2857 *
2858 * A newly created surface has its buffer transformation set to
2859 * normal.
2860 *
2861 * wl_surface.set_buffer_transform changes the pending buffer
2862 * transformation. wl_surface.commit copies the pending buffer
2863 * transformation to the current one. Otherwise, the pending and
2864 * current values are never changed.
2865 *
2866 * The purpose of this request is to allow clients to render
2867 * content according to the output transform, thus permitting the
2868 * compositor to use certain optimizations even if the display is
2869 * rotated. Using hardware overlays and scanning out a client
2870 * buffer for fullscreen surfaces are examples of such
2871 * optimizations. Those optimizations are highly dependent on the
2872 * compositor implementation, so the use of this request should be
2873 * considered on a case-by-case basis.
2874 *
2875 * Note that if the transform value includes 90 or 270 degree
2876 * rotation, the width of the buffer will become the surface height
2877 * and the height of the buffer will become the surface width.
2878 *
2879 * If transform is not one of the values from the
2880 * wl_output.transform enum the invalid_transform protocol error is
2881 * raised.
2882 * @param transform transform for interpreting buffer contents
2883 * @since 2
2884 */
2885 void (*set_buffer_transform)(struct wl_client *client,
2886 struct wl_resource *resource,
2887 int32_t transform);
2888 /**
2889 * sets the buffer scaling factor
2890 *
2891 * This request sets an optional scaling factor on how the
2892 * compositor interprets the contents of the buffer attached to the
2893 * window.
2894 *
2895 * Buffer scale is double-buffered state, see wl_surface.commit.
2896 *
2897 * A newly created surface has its buffer scale set to 1.
2898 *
2899 * wl_surface.set_buffer_scale changes the pending buffer scale.
2900 * wl_surface.commit copies the pending buffer scale to the current
2901 * one. Otherwise, the pending and current values are never
2902 * changed.
2903 *
2904 * The purpose of this request is to allow clients to supply higher
2905 * resolution buffer data for use on high resolution outputs. It is
2906 * intended that you pick the same buffer scale as the scale of the
2907 * output that the surface is displayed on. This means the
2908 * compositor can avoid scaling when rendering the surface on that
2909 * output.
2910 *
2911 * Note that if the scale is larger than 1, then you have to attach
2912 * a buffer that is larger (by a factor of scale in each dimension)
2913 * than the desired surface size.
2914 *
2915 * If scale is not positive the invalid_scale protocol error is
2916 * raised.
2917 * @param scale positive scale for interpreting buffer contents
2918 * @since 3
2919 */
2920 void (*set_buffer_scale)(struct wl_client *client,
2921 struct wl_resource *resource,
2922 int32_t scale);
2923 /**
2924 * mark part of the surface damaged using buffer coordinates
2925 *
2926 * This request is used to describe the regions where the pending
2927 * buffer is different from the current surface contents, and where
2928 * the surface therefore needs to be repainted. The compositor
2929 * ignores the parts of the damage that fall outside of the
2930 * surface.
2931 *
2932 * Damage is double-buffered state, see wl_surface.commit.
2933 *
2934 * The damage rectangle is specified in buffer coordinates, where x
2935 * and y specify the upper left corner of the damage rectangle.
2936 *
2937 * The initial value for pending damage is empty: no damage.
2938 * wl_surface.damage_buffer adds pending damage: the new pending
2939 * damage is the union of old pending damage and the given
2940 * rectangle.
2941 *
2942 * wl_surface.commit assigns pending damage as the current damage,
2943 * and clears pending damage. The server will clear the current
2944 * damage as it repaints the surface.
2945 *
2946 * This request differs from wl_surface.damage in only one way - it
2947 * takes damage in buffer coordinates instead of surface-local
2948 * coordinates. While this generally is more intuitive than surface
2949 * coordinates, it is especially desirable when using wp_viewport
2950 * or when a drawing library (like EGL) is unaware of buffer scale
2951 * and buffer transform.
2952 *
2953 * Note: Because buffer transformation changes and damage requests
2954 * may be interleaved in the protocol stream, it is impossible to
2955 * determine the actual mapping between surface and buffer damage
2956 * until wl_surface.commit time. Therefore, compositors wishing to
2957 * take both kinds of damage into account will have to accumulate
2958 * damage from the two requests separately and only transform from
2959 * one to the other after receiving the wl_surface.commit.
2960 * @param x buffer-local x coordinate
2961 * @param y buffer-local y coordinate
2962 * @param width width of damage rectangle
2963 * @param height height of damage rectangle
2964 * @since 4
2965 */
2966 void (*damage_buffer)(struct wl_client *client,
2967 struct wl_resource *resource,
2968 int32_t x,
2969 int32_t y,
2970 int32_t width,
2971 int32_t height);
2972};
2973
2974#define WL_SURFACE_ENTER 0
2975#define WL_SURFACE_LEAVE 1
2976
2977/**
2978 * @ingroup iface_wl_surface
2979 */
2980#define WL_SURFACE_ENTER_SINCE_VERSION 1
2981/**
2982 * @ingroup iface_wl_surface
2983 */
2984#define WL_SURFACE_LEAVE_SINCE_VERSION 1
2985
2986/**
2987 * @ingroup iface_wl_surface
2988 */
2989#define WL_SURFACE_DESTROY_SINCE_VERSION 1
2990/**
2991 * @ingroup iface_wl_surface
2992 */
2993#define WL_SURFACE_ATTACH_SINCE_VERSION 1
2994/**
2995 * @ingroup iface_wl_surface
2996 */
2997#define WL_SURFACE_DAMAGE_SINCE_VERSION 1
2998/**
2999 * @ingroup iface_wl_surface
3000 */
3001#define WL_SURFACE_FRAME_SINCE_VERSION 1
3002/**
3003 * @ingroup iface_wl_surface
3004 */
3005#define WL_SURFACE_SET_OPAQUE_REGION_SINCE_VERSION 1
3006/**
3007 * @ingroup iface_wl_surface
3008 */
3009#define WL_SURFACE_SET_INPUT_REGION_SINCE_VERSION 1
3010/**
3011 * @ingroup iface_wl_surface
3012 */
3013#define WL_SURFACE_COMMIT_SINCE_VERSION 1
3014/**
3015 * @ingroup iface_wl_surface
3016 */
3017#define WL_SURFACE_SET_BUFFER_TRANSFORM_SINCE_VERSION 2
3018/**
3019 * @ingroup iface_wl_surface
3020 */
3021#define WL_SURFACE_SET_BUFFER_SCALE_SINCE_VERSION 3
3022/**
3023 * @ingroup iface_wl_surface
3024 */
3025#define WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION 4
3026
3027/**
3028 * @ingroup iface_wl_surface
3029 * Sends an enter event to the client owning the resource.
3030 * @param resource_ The client's resource
3031 * @param output output entered by the surface
3032 */
3033static inline void
3034wl_surface_send_enter(struct wl_resource *resource_, struct wl_resource *output)
3035{
3036 wl_resource_post_event(resource_, WL_SURFACE_ENTER, output);
3037}
3038
3039/**
3040 * @ingroup iface_wl_surface
3041 * Sends an leave event to the client owning the resource.
3042 * @param resource_ The client's resource
3043 * @param output output left by the surface
3044 */
3045static inline void
3046wl_surface_send_leave(struct wl_resource *resource_, struct wl_resource *output)
3047{
3048 wl_resource_post_event(resource_, WL_SURFACE_LEAVE, output);
3049}
3050
3051#ifndef WL_SEAT_CAPABILITY_ENUM
3052#define WL_SEAT_CAPABILITY_ENUM
3053/**
3054 * @ingroup iface_wl_seat
3055 * seat capability bitmask
3056 *
3057 * This is a bitmask of capabilities this seat has; if a member is
3058 * set, then it is present on the seat.
3059 */
3060enum wl_seat_capability {
3061 /**
3062 * the seat has pointer devices
3063 */
3064 WL_SEAT_CAPABILITY_POINTER = 1,
3065 /**
3066 * the seat has one or more keyboards
3067 */
3068 WL_SEAT_CAPABILITY_KEYBOARD = 2,
3069 /**
3070 * the seat has touch devices
3071 */
3072 WL_SEAT_CAPABILITY_TOUCH = 4,
3073};
3074#endif /* WL_SEAT_CAPABILITY_ENUM */
3075
3076/**
3077 * @ingroup iface_wl_seat
3078 * @struct wl_seat_interface
3079 */
3080struct wl_seat_interface {
3081 /**
3082 * return pointer object
3083 *
3084 * The ID provided will be initialized to the wl_pointer
3085 * interface for this seat.
3086 *
3087 * This request only takes effect if the seat has the pointer
3088 * capability, or has had the pointer capability in the past. It is
3089 * a protocol violation to issue this request on a seat that has
3090 * never had the pointer capability.
3091 * @param id seat pointer
3092 */
3093 void (*get_pointer)(struct wl_client *client,
3094 struct wl_resource *resource,
3095 uint32_t id);
3096 /**
3097 * return keyboard object
3098 *
3099 * The ID provided will be initialized to the wl_keyboard
3100 * interface for this seat.
3101 *
3102 * This request only takes effect if the seat has the keyboard
3103 * capability, or has had the keyboard capability in the past. It
3104 * is a protocol violation to issue this request on a seat that has
3105 * never had the keyboard capability.
3106 * @param id seat keyboard
3107 */
3108 void (*get_keyboard)(struct wl_client *client,
3109 struct wl_resource *resource,
3110 uint32_t id);
3111 /**
3112 * return touch object
3113 *
3114 * The ID provided will be initialized to the wl_touch interface
3115 * for this seat.
3116 *
3117 * This request only takes effect if the seat has the touch
3118 * capability, or has had the touch capability in the past. It is a
3119 * protocol violation to issue this request on a seat that has
3120 * never had the touch capability.
3121 * @param id seat touch interface
3122 */
3123 void (*get_touch)(struct wl_client *client,
3124 struct wl_resource *resource,
3125 uint32_t id);
3126 /**
3127 * release the seat object
3128 *
3129 * Using this request a client can tell the server that it is not
3130 * going to use the seat object anymore.
3131 * @since 5
3132 */
3133 void (*release)(struct wl_client *client,
3134 struct wl_resource *resource);
3135};
3136
3137#define WL_SEAT_CAPABILITIES 0
3138#define WL_SEAT_NAME 1
3139
3140/**
3141 * @ingroup iface_wl_seat
3142 */
3143#define WL_SEAT_CAPABILITIES_SINCE_VERSION 1
3144/**
3145 * @ingroup iface_wl_seat
3146 */
3147#define WL_SEAT_NAME_SINCE_VERSION 2
3148
3149/**
3150 * @ingroup iface_wl_seat
3151 */
3152#define WL_SEAT_GET_POINTER_SINCE_VERSION 1
3153/**
3154 * @ingroup iface_wl_seat
3155 */
3156#define WL_SEAT_GET_KEYBOARD_SINCE_VERSION 1
3157/**
3158 * @ingroup iface_wl_seat
3159 */
3160#define WL_SEAT_GET_TOUCH_SINCE_VERSION 1
3161/**
3162 * @ingroup iface_wl_seat
3163 */
3164#define WL_SEAT_RELEASE_SINCE_VERSION 5
3165
3166/**
3167 * @ingroup iface_wl_seat
3168 * Sends an capabilities event to the client owning the resource.
3169 * @param resource_ The client's resource
3170 * @param capabilities capabilities of the seat
3171 */
3172static inline void
3173wl_seat_send_capabilities(struct wl_resource *resource_, uint32_t capabilities)
3174{
3175 wl_resource_post_event(resource_, WL_SEAT_CAPABILITIES, capabilities);
3176}
3177
3178/**
3179 * @ingroup iface_wl_seat
3180 * Sends an name event to the client owning the resource.
3181 * @param resource_ The client's resource
3182 * @param name seat identifier
3183 */
3184static inline void
3185wl_seat_send_name(struct wl_resource *resource_, const char *name)
3186{
3187 wl_resource_post_event(resource_, WL_SEAT_NAME, name);
3188}
3189
3190#ifndef WL_POINTER_ERROR_ENUM
3191#define WL_POINTER_ERROR_ENUM
3192enum wl_pointer_error {
3193 /**
3194 * given wl_surface has another role
3195 */
3196 WL_POINTER_ERROR_ROLE = 0,
3197};
3198#endif /* WL_POINTER_ERROR_ENUM */
3199
3200#ifndef WL_POINTER_BUTTON_STATE_ENUM
3201#define WL_POINTER_BUTTON_STATE_ENUM
3202/**
3203 * @ingroup iface_wl_pointer
3204 * physical button state
3205 *
3206 * Describes the physical state of a button that produced the button
3207 * event.
3208 */
3209enum wl_pointer_button_state {
3210 /**
3211 * the button is not pressed
3212 */
3213 WL_POINTER_BUTTON_STATE_RELEASED = 0,
3214 /**
3215 * the button is pressed
3216 */
3217 WL_POINTER_BUTTON_STATE_PRESSED = 1,
3218};
3219#endif /* WL_POINTER_BUTTON_STATE_ENUM */
3220
3221#ifndef WL_POINTER_AXIS_ENUM
3222#define WL_POINTER_AXIS_ENUM
3223/**
3224 * @ingroup iface_wl_pointer
3225 * axis types
3226 *
3227 * Describes the axis types of scroll events.
3228 */
3229enum wl_pointer_axis {
3230 /**
3231 * vertical axis
3232 */
3233 WL_POINTER_AXIS_VERTICAL_SCROLL = 0,
3234 /**
3235 * horizontal axis
3236 */
3237 WL_POINTER_AXIS_HORIZONTAL_SCROLL = 1,
3238};
3239#endif /* WL_POINTER_AXIS_ENUM */
3240
3241#ifndef WL_POINTER_AXIS_SOURCE_ENUM
3242#define WL_POINTER_AXIS_SOURCE_ENUM
3243/**
3244 * @ingroup iface_wl_pointer
3245 * axis source types
3246 *
3247 * Describes the source types for axis events. This indicates to the
3248 * client how an axis event was physically generated; a client may
3249 * adjust the user interface accordingly. For example, scroll events
3250 * from a "finger" source may be in a smooth coordinate space with
3251 * kinetic scrolling whereas a "wheel" source may be in discrete steps
3252 * of a number of lines.
3253 *
3254 * The "continuous" axis source is a device generating events in a
3255 * continuous coordinate space, but using something other than a
3256 * finger. One example for this source is button-based scrolling where
3257 * the vertical motion of a device is converted to scroll events while
3258 * a button is held down.
3259 *
3260 * The "wheel tilt" axis source indicates that the actual device is a
3261 * wheel but the scroll event is not caused by a rotation but a
3262 * (usually sideways) tilt of the wheel.
3263 */
3264enum wl_pointer_axis_source {
3265 /**
3266 * a physical wheel rotation
3267 */
3268 WL_POINTER_AXIS_SOURCE_WHEEL = 0,
3269 /**
3270 * finger on a touch surface
3271 */
3272 WL_POINTER_AXIS_SOURCE_FINGER = 1,
3273 /**
3274 * continuous coordinate space
3275 */
3276 WL_POINTER_AXIS_SOURCE_CONTINUOUS = 2,
3277 /**
3278 * a physical wheel tilt
3279 * @since 6
3280 */
3281 WL_POINTER_AXIS_SOURCE_WHEEL_TILT = 3,
3282};
3283/**
3284 * @ingroup iface_wl_pointer
3285 */
3286#define WL_POINTER_AXIS_SOURCE_WHEEL_TILT_SINCE_VERSION 6
3287#endif /* WL_POINTER_AXIS_SOURCE_ENUM */
3288
3289/**
3290 * @ingroup iface_wl_pointer
3291 * @struct wl_pointer_interface
3292 */
3293struct wl_pointer_interface {
3294 /**
3295 * set the pointer surface
3296 *
3297 * Set the pointer surface, i.e., the surface that contains the
3298 * pointer image (cursor). This request gives the surface the role
3299 * of a cursor. If the surface already has another role, it raises
3300 * a protocol error.
3301 *
3302 * The cursor actually changes only if the pointer focus for this
3303 * device is one of the requesting client's surfaces or the surface
3304 * parameter is the current pointer surface. If there was a
3305 * previous surface set with this request it is replaced. If
3306 * surface is NULL, the pointer image is hidden.
3307 *
3308 * The parameters hotspot_x and hotspot_y define the position of
3309 * the pointer surface relative to the pointer location. Its
3310 * top-left corner is always at (x, y) - (hotspot_x, hotspot_y),
3311 * where (x, y) are the coordinates of the pointer location, in
3312 * surface-local coordinates.
3313 *
3314 * On surface.attach requests to the pointer surface, hotspot_x and
3315 * hotspot_y are decremented by the x and y parameters passed to
3316 * the request. Attach must be confirmed by wl_surface.commit as
3317 * usual.
3318 *
3319 * The hotspot can also be updated by passing the currently set
3320 * pointer surface to this request with new values for hotspot_x
3321 * and hotspot_y.
3322 *
3323 * The current and pending input regions of the wl_surface are
3324 * cleared, and wl_surface.set_input_region is ignored until the
3325 * wl_surface is no longer used as the cursor. When the use as a
3326 * cursor ends, the current and pending input regions become
3327 * undefined, and the wl_surface is unmapped.
3328 * @param serial serial number of the enter event
3329 * @param surface pointer surface
3330 * @param hotspot_x surface-local x coordinate
3331 * @param hotspot_y surface-local y coordinate
3332 */
3333 void (*set_cursor)(struct wl_client *client,
3334 struct wl_resource *resource,
3335 uint32_t serial,
3336 struct wl_resource *surface,
3337 int32_t hotspot_x,
3338 int32_t hotspot_y);
3339 /**
3340 * release the pointer object
3341 *
3342 * Using this request a client can tell the server that it is not
3343 * going to use the pointer object anymore.
3344 *
3345 * This request destroys the pointer proxy object, so clients must
3346 * not call wl_pointer_destroy() after using this request.
3347 * @since 3
3348 */
3349 void (*release)(struct wl_client *client,
3350 struct wl_resource *resource);
3351};
3352
3353#define WL_POINTER_ENTER 0
3354#define WL_POINTER_LEAVE 1
3355#define WL_POINTER_MOTION 2
3356#define WL_POINTER_BUTTON 3
3357#define WL_POINTER_AXIS 4
3358#define WL_POINTER_FRAME 5
3359#define WL_POINTER_AXIS_SOURCE 6
3360#define WL_POINTER_AXIS_STOP 7
3361#define WL_POINTER_AXIS_DISCRETE 8
3362
3363/**
3364 * @ingroup iface_wl_pointer
3365 */
3366#define WL_POINTER_ENTER_SINCE_VERSION 1
3367/**
3368 * @ingroup iface_wl_pointer
3369 */
3370#define WL_POINTER_LEAVE_SINCE_VERSION 1
3371/**
3372 * @ingroup iface_wl_pointer
3373 */
3374#define WL_POINTER_MOTION_SINCE_VERSION 1
3375/**
3376 * @ingroup iface_wl_pointer
3377 */
3378#define WL_POINTER_BUTTON_SINCE_VERSION 1
3379/**
3380 * @ingroup iface_wl_pointer
3381 */
3382#define WL_POINTER_AXIS_SINCE_VERSION 1
3383/**
3384 * @ingroup iface_wl_pointer
3385 */
3386#define WL_POINTER_FRAME_SINCE_VERSION 5
3387/**
3388 * @ingroup iface_wl_pointer
3389 */
3390#define WL_POINTER_AXIS_SOURCE_SINCE_VERSION 5
3391/**
3392 * @ingroup iface_wl_pointer
3393 */
3394#define WL_POINTER_AXIS_STOP_SINCE_VERSION 5
3395/**
3396 * @ingroup iface_wl_pointer
3397 */
3398#define WL_POINTER_AXIS_DISCRETE_SINCE_VERSION 5
3399
3400/**
3401 * @ingroup iface_wl_pointer
3402 */
3403#define WL_POINTER_SET_CURSOR_SINCE_VERSION 1
3404/**
3405 * @ingroup iface_wl_pointer
3406 */
3407#define WL_POINTER_RELEASE_SINCE_VERSION 3
3408
3409/**
3410 * @ingroup iface_wl_pointer
3411 * Sends an enter event to the client owning the resource.
3412 * @param resource_ The client's resource
3413 * @param serial serial number of the enter event
3414 * @param surface surface entered by the pointer
3415 * @param surface_x surface-local x coordinate
3416 * @param surface_y surface-local y coordinate
3417 */
3418static inline void
3419wl_pointer_send_enter(struct wl_resource *resource_, uint32_t serial, struct wl_resource *surface, wl_fixed_t surface_x, wl_fixed_t surface_y)
3420{
3421 wl_resource_post_event(resource_, WL_POINTER_ENTER, serial, surface, surface_x, surface_y);
3422}
3423
3424/**
3425 * @ingroup iface_wl_pointer
3426 * Sends an leave event to the client owning the resource.
3427 * @param resource_ The client's resource
3428 * @param serial serial number of the leave event
3429 * @param surface surface left by the pointer
3430 */
3431static inline void
3432wl_pointer_send_leave(struct wl_resource *resource_, uint32_t serial, struct wl_resource *surface)
3433{
3434 wl_resource_post_event(resource_, WL_POINTER_LEAVE, serial, surface);
3435}
3436
3437/**
3438 * @ingroup iface_wl_pointer
3439 * Sends an motion event to the client owning the resource.
3440 * @param resource_ The client's resource
3441 * @param time timestamp with millisecond granularity
3442 * @param surface_x surface-local x coordinate
3443 * @param surface_y surface-local y coordinate
3444 */
3445static inline void
3446wl_pointer_send_motion(struct wl_resource *resource_, uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y)
3447{
3448 wl_resource_post_event(resource_, WL_POINTER_MOTION, time, surface_x, surface_y);
3449}
3450
3451/**
3452 * @ingroup iface_wl_pointer
3453 * Sends an button event to the client owning the resource.
3454 * @param resource_ The client's resource
3455 * @param serial serial number of the button event
3456 * @param time timestamp with millisecond granularity
3457 * @param button button that produced the event
3458 * @param state physical state of the button
3459 */
3460static inline void
3461wl_pointer_send_button(struct wl_resource *resource_, uint32_t serial, uint32_t time, uint32_t button, uint32_t state)
3462{
3463 wl_resource_post_event(resource_, WL_POINTER_BUTTON, serial, time, button, state);
3464}
3465
3466/**
3467 * @ingroup iface_wl_pointer
3468 * Sends an axis event to the client owning the resource.
3469 * @param resource_ The client's resource
3470 * @param time timestamp with millisecond granularity
3471 * @param axis axis type
3472 * @param value length of vector in surface-local coordinate space
3473 */
3474static inline void
3475wl_pointer_send_axis(struct wl_resource *resource_, uint32_t time, uint32_t axis, wl_fixed_t value)
3476{
3477 wl_resource_post_event(resource_, WL_POINTER_AXIS, time, axis, value);
3478}
3479
3480/**
3481 * @ingroup iface_wl_pointer
3482 * Sends an frame event to the client owning the resource.
3483 * @param resource_ The client's resource
3484 */
3485static inline void
3486wl_pointer_send_frame(struct wl_resource *resource_)
3487{
3488 wl_resource_post_event(resource_, WL_POINTER_FRAME);
3489}
3490
3491/**
3492 * @ingroup iface_wl_pointer
3493 * Sends an axis_source event to the client owning the resource.
3494 * @param resource_ The client's resource
3495 * @param axis_source source of the axis event
3496 */
3497static inline void
3498wl_pointer_send_axis_source(struct wl_resource *resource_, uint32_t axis_source)
3499{
3500 wl_resource_post_event(resource_, WL_POINTER_AXIS_SOURCE, axis_source);
3501}
3502
3503/**
3504 * @ingroup iface_wl_pointer
3505 * Sends an axis_stop event to the client owning the resource.
3506 * @param resource_ The client's resource
3507 * @param time timestamp with millisecond granularity
3508 * @param axis the axis stopped with this event
3509 */
3510static inline void
3511wl_pointer_send_axis_stop(struct wl_resource *resource_, uint32_t time, uint32_t axis)
3512{
3513 wl_resource_post_event(resource_, WL_POINTER_AXIS_STOP, time, axis);
3514}
3515
3516/**
3517 * @ingroup iface_wl_pointer
3518 * Sends an axis_discrete event to the client owning the resource.
3519 * @param resource_ The client's resource
3520 * @param axis axis type
3521 * @param discrete number of steps
3522 */
3523static inline void
3524wl_pointer_send_axis_discrete(struct wl_resource *resource_, uint32_t axis, int32_t discrete)
3525{
3526 wl_resource_post_event(resource_, WL_POINTER_AXIS_DISCRETE, axis, discrete);
3527}
3528
3529#ifndef WL_KEYBOARD_KEYMAP_FORMAT_ENUM
3530#define WL_KEYBOARD_KEYMAP_FORMAT_ENUM
3531/**
3532 * @ingroup iface_wl_keyboard
3533 * keyboard mapping format
3534 *
3535 * This specifies the format of the keymap provided to the
3536 * client with the wl_keyboard.keymap event.
3537 */
3538enum wl_keyboard_keymap_format {
3539 /**
3540 * no keymap; client must understand how to interpret the raw keycode
3541 */
3542 WL_KEYBOARD_KEYMAP_FORMAT_NO_KEYMAP = 0,
3543 /**
3544 * libxkbcommon compatible; to determine the xkb keycode, clients must add 8 to the key event keycode
3545 */
3546 WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1 = 1,
3547};
3548#endif /* WL_KEYBOARD_KEYMAP_FORMAT_ENUM */
3549
3550#ifndef WL_KEYBOARD_KEY_STATE_ENUM
3551#define WL_KEYBOARD_KEY_STATE_ENUM
3552/**
3553 * @ingroup iface_wl_keyboard
3554 * physical key state
3555 *
3556 * Describes the physical state of a key that produced the key event.
3557 */
3558enum wl_keyboard_key_state {
3559 /**
3560 * key is not pressed
3561 */
3562 WL_KEYBOARD_KEY_STATE_RELEASED = 0,
3563 /**
3564 * key is pressed
3565 */
3566 WL_KEYBOARD_KEY_STATE_PRESSED = 1,
3567};
3568#endif /* WL_KEYBOARD_KEY_STATE_ENUM */
3569
3570/**
3571 * @ingroup iface_wl_keyboard
3572 * @struct wl_keyboard_interface
3573 */
3574struct wl_keyboard_interface {
3575 /**
3576 * release the keyboard object
3577 *
3578 *
3579 * @since 3
3580 */
3581 void (*release)(struct wl_client *client,
3582 struct wl_resource *resource);
3583};
3584
3585#define WL_KEYBOARD_KEYMAP 0
3586#define WL_KEYBOARD_ENTER 1
3587#define WL_KEYBOARD_LEAVE 2
3588#define WL_KEYBOARD_KEY 3
3589#define WL_KEYBOARD_MODIFIERS 4
3590#define WL_KEYBOARD_REPEAT_INFO 5
3591
3592/**
3593 * @ingroup iface_wl_keyboard
3594 */
3595#define WL_KEYBOARD_KEYMAP_SINCE_VERSION 1
3596/**
3597 * @ingroup iface_wl_keyboard
3598 */
3599#define WL_KEYBOARD_ENTER_SINCE_VERSION 1
3600/**
3601 * @ingroup iface_wl_keyboard
3602 */
3603#define WL_KEYBOARD_LEAVE_SINCE_VERSION 1
3604/**
3605 * @ingroup iface_wl_keyboard
3606 */
3607#define WL_KEYBOARD_KEY_SINCE_VERSION 1
3608/**
3609 * @ingroup iface_wl_keyboard
3610 */
3611#define WL_KEYBOARD_MODIFIERS_SINCE_VERSION 1
3612/**
3613 * @ingroup iface_wl_keyboard
3614 */
3615#define WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION 4
3616
3617/**
3618 * @ingroup iface_wl_keyboard
3619 */
3620#define WL_KEYBOARD_RELEASE_SINCE_VERSION 3
3621
3622/**
3623 * @ingroup iface_wl_keyboard
3624 * Sends an keymap event to the client owning the resource.
3625 * @param resource_ The client's resource
3626 * @param format keymap format
3627 * @param fd keymap file descriptor
3628 * @param size keymap size, in bytes
3629 */
3630static inline void
3631wl_keyboard_send_keymap(struct wl_resource *resource_, uint32_t format, int32_t fd, uint32_t size)
3632{
3633 wl_resource_post_event(resource_, WL_KEYBOARD_KEYMAP, format, fd, size);
3634}
3635
3636/**
3637 * @ingroup iface_wl_keyboard
3638 * Sends an enter event to the client owning the resource.
3639 * @param resource_ The client's resource
3640 * @param serial serial number of the enter event
3641 * @param surface surface gaining keyboard focus
3642 * @param keys the currently pressed keys
3643 */
3644static inline void
3645wl_keyboard_send_enter(struct wl_resource *resource_, uint32_t serial, struct wl_resource *surface, struct wl_array *keys)
3646{
3647 wl_resource_post_event(resource_, WL_KEYBOARD_ENTER, serial, surface, keys);
3648}
3649
3650/**
3651 * @ingroup iface_wl_keyboard
3652 * Sends an leave event to the client owning the resource.
3653 * @param resource_ The client's resource
3654 * @param serial serial number of the leave event
3655 * @param surface surface that lost keyboard focus
3656 */
3657static inline void
3658wl_keyboard_send_leave(struct wl_resource *resource_, uint32_t serial, struct wl_resource *surface)
3659{
3660 wl_resource_post_event(resource_, WL_KEYBOARD_LEAVE, serial, surface);
3661}
3662
3663/**
3664 * @ingroup iface_wl_keyboard
3665 * Sends an key event to the client owning the resource.
3666 * @param resource_ The client's resource
3667 * @param serial serial number of the key event
3668 * @param time timestamp with millisecond granularity
3669 * @param key key that produced the event
3670 * @param state physical state of the key
3671 */
3672static inline void
3673wl_keyboard_send_key(struct wl_resource *resource_, uint32_t serial, uint32_t time, uint32_t key, uint32_t state)
3674{
3675 wl_resource_post_event(resource_, WL_KEYBOARD_KEY, serial, time, key, state);
3676}
3677
3678/**
3679 * @ingroup iface_wl_keyboard
3680 * Sends an modifiers event to the client owning the resource.
3681 * @param resource_ The client's resource
3682 * @param serial serial number of the modifiers event
3683 * @param mods_depressed depressed modifiers
3684 * @param mods_latched latched modifiers
3685 * @param mods_locked locked modifiers
3686 * @param group keyboard layout
3687 */
3688static inline void
3689wl_keyboard_send_modifiers(struct wl_resource *resource_, uint32_t serial, uint32_t mods_depressed, uint32_t mods_latched, uint32_t mods_locked, uint32_t group)
3690{
3691 wl_resource_post_event(resource_, WL_KEYBOARD_MODIFIERS, serial, mods_depressed, mods_latched, mods_locked, group);
3692}
3693
3694/**
3695 * @ingroup iface_wl_keyboard
3696 * Sends an repeat_info event to the client owning the resource.
3697 * @param resource_ The client's resource
3698 * @param rate the rate of repeating keys in characters per second
3699 * @param delay delay in milliseconds since key down until repeating starts
3700 */
3701static inline void
3702wl_keyboard_send_repeat_info(struct wl_resource *resource_, int32_t rate, int32_t delay)
3703{
3704 wl_resource_post_event(resource_, WL_KEYBOARD_REPEAT_INFO, rate, delay);
3705}
3706
3707/**
3708 * @ingroup iface_wl_touch
3709 * @struct wl_touch_interface
3710 */
3711struct wl_touch_interface {
3712 /**
3713 * release the touch object
3714 *
3715 *
3716 * @since 3
3717 */
3718 void (*release)(struct wl_client *client,
3719 struct wl_resource *resource);
3720};
3721
3722#define WL_TOUCH_DOWN 0
3723#define WL_TOUCH_UP 1
3724#define WL_TOUCH_MOTION 2
3725#define WL_TOUCH_FRAME 3
3726#define WL_TOUCH_CANCEL 4
3727#define WL_TOUCH_SHAPE 5
3728#define WL_TOUCH_ORIENTATION 6
3729
3730/**
3731 * @ingroup iface_wl_touch
3732 */
3733#define WL_TOUCH_DOWN_SINCE_VERSION 1
3734/**
3735 * @ingroup iface_wl_touch
3736 */
3737#define WL_TOUCH_UP_SINCE_VERSION 1
3738/**
3739 * @ingroup iface_wl_touch
3740 */
3741#define WL_TOUCH_MOTION_SINCE_VERSION 1
3742/**
3743 * @ingroup iface_wl_touch
3744 */
3745#define WL_TOUCH_FRAME_SINCE_VERSION 1
3746/**
3747 * @ingroup iface_wl_touch
3748 */
3749#define WL_TOUCH_CANCEL_SINCE_VERSION 1
3750/**
3751 * @ingroup iface_wl_touch
3752 */
3753#define WL_TOUCH_SHAPE_SINCE_VERSION 6
3754/**
3755 * @ingroup iface_wl_touch
3756 */
3757#define WL_TOUCH_ORIENTATION_SINCE_VERSION 6
3758
3759/**
3760 * @ingroup iface_wl_touch
3761 */
3762#define WL_TOUCH_RELEASE_SINCE_VERSION 3
3763
3764/**
3765 * @ingroup iface_wl_touch
3766 * Sends an down event to the client owning the resource.
3767 * @param resource_ The client's resource
3768 * @param serial serial number of the touch down event
3769 * @param time timestamp with millisecond granularity
3770 * @param surface surface touched
3771 * @param id the unique ID of this touch point
3772 * @param x surface-local x coordinate
3773 * @param y surface-local y coordinate
3774 */
3775static inline void
3776wl_touch_send_down(struct wl_resource *resource_, uint32_t serial, uint32_t time, struct wl_resource *surface, int32_t id, wl_fixed_t x, wl_fixed_t y)
3777{
3778 wl_resource_post_event(resource_, WL_TOUCH_DOWN, serial, time, surface, id, x, y);
3779}
3780
3781/**
3782 * @ingroup iface_wl_touch
3783 * Sends an up event to the client owning the resource.
3784 * @param resource_ The client's resource
3785 * @param serial serial number of the touch up event
3786 * @param time timestamp with millisecond granularity
3787 * @param id the unique ID of this touch point
3788 */
3789static inline void
3790wl_touch_send_up(struct wl_resource *resource_, uint32_t serial, uint32_t time, int32_t id)
3791{
3792 wl_resource_post_event(resource_, WL_TOUCH_UP, serial, time, id);
3793}
3794
3795/**
3796 * @ingroup iface_wl_touch
3797 * Sends an motion event to the client owning the resource.
3798 * @param resource_ The client's resource
3799 * @param time timestamp with millisecond granularity
3800 * @param id the unique ID of this touch point
3801 * @param x surface-local x coordinate
3802 * @param y surface-local y coordinate
3803 */
3804static inline void
3805wl_touch_send_motion(struct wl_resource *resource_, uint32_t time, int32_t id, wl_fixed_t x, wl_fixed_t y)
3806{
3807 wl_resource_post_event(resource_, WL_TOUCH_MOTION, time, id, x, y);
3808}
3809
3810/**
3811 * @ingroup iface_wl_touch
3812 * Sends an frame event to the client owning the resource.
3813 * @param resource_ The client's resource
3814 */
3815static inline void
3816wl_touch_send_frame(struct wl_resource *resource_)
3817{
3818 wl_resource_post_event(resource_, WL_TOUCH_FRAME);
3819}
3820
3821/**
3822 * @ingroup iface_wl_touch
3823 * Sends an cancel event to the client owning the resource.
3824 * @param resource_ The client's resource
3825 */
3826static inline void
3827wl_touch_send_cancel(struct wl_resource *resource_)
3828{
3829 wl_resource_post_event(resource_, WL_TOUCH_CANCEL);
3830}
3831
3832/**
3833 * @ingroup iface_wl_touch
3834 * Sends an shape event to the client owning the resource.
3835 * @param resource_ The client's resource
3836 * @param id the unique ID of this touch point
3837 * @param major length of the major axis in surface-local coordinates
3838 * @param minor length of the minor axis in surface-local coordinates
3839 */
3840static inline void
3841wl_touch_send_shape(struct wl_resource *resource_, int32_t id, wl_fixed_t major, wl_fixed_t minor)
3842{
3843 wl_resource_post_event(resource_, WL_TOUCH_SHAPE, id, major, minor);
3844}
3845
3846/**
3847 * @ingroup iface_wl_touch
3848 * Sends an orientation event to the client owning the resource.
3849 * @param resource_ The client's resource
3850 * @param id the unique ID of this touch point
3851 * @param orientation angle between major axis and positive surface y-axis in degrees
3852 */
3853static inline void
3854wl_touch_send_orientation(struct wl_resource *resource_, int32_t id, wl_fixed_t orientation)
3855{
3856 wl_resource_post_event(resource_, WL_TOUCH_ORIENTATION, id, orientation);
3857}
3858
3859#ifndef WL_OUTPUT_SUBPIXEL_ENUM
3860#define WL_OUTPUT_SUBPIXEL_ENUM
3861/**
3862 * @ingroup iface_wl_output
3863 * subpixel geometry information
3864 *
3865 * This enumeration describes how the physical
3866 * pixels on an output are laid out.
3867 */
3868enum wl_output_subpixel {
3869 /**
3870 * unknown geometry
3871 */
3872 WL_OUTPUT_SUBPIXEL_UNKNOWN = 0,
3873 /**
3874 * no geometry
3875 */
3876 WL_OUTPUT_SUBPIXEL_NONE = 1,
3877 /**
3878 * horizontal RGB
3879 */
3880 WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB = 2,
3881 /**
3882 * horizontal BGR
3883 */
3884 WL_OUTPUT_SUBPIXEL_HORIZONTAL_BGR = 3,
3885 /**
3886 * vertical RGB
3887 */
3888 WL_OUTPUT_SUBPIXEL_VERTICAL_RGB = 4,
3889 /**
3890 * vertical BGR
3891 */
3892 WL_OUTPUT_SUBPIXEL_VERTICAL_BGR = 5,
3893};
3894#endif /* WL_OUTPUT_SUBPIXEL_ENUM */
3895
3896#ifndef WL_OUTPUT_TRANSFORM_ENUM
3897#define WL_OUTPUT_TRANSFORM_ENUM
3898/**
3899 * @ingroup iface_wl_output
3900 * transform from framebuffer to output
3901 *
3902 * This describes the transform that a compositor will apply to a
3903 * surface to compensate for the rotation or mirroring of an
3904 * output device.
3905 *
3906 * The flipped values correspond to an initial flip around a
3907 * vertical axis followed by rotation.
3908 *
3909 * The purpose is mainly to allow clients to render accordingly and
3910 * tell the compositor, so that for fullscreen surfaces, the
3911 * compositor will still be able to scan out directly from client
3912 * surfaces.
3913 */
3914enum wl_output_transform {
3915 /**
3916 * no transform
3917 */
3918 WL_OUTPUT_TRANSFORM_NORMAL = 0,
3919 /**
3920 * 90 degrees counter-clockwise
3921 */
3922 WL_OUTPUT_TRANSFORM_90 = 1,
3923 /**
3924 * 180 degrees counter-clockwise
3925 */
3926 WL_OUTPUT_TRANSFORM_180 = 2,
3927 /**
3928 * 270 degrees counter-clockwise
3929 */
3930 WL_OUTPUT_TRANSFORM_270 = 3,
3931 /**
3932 * 180 degree flip around a vertical axis
3933 */
3934 WL_OUTPUT_TRANSFORM_FLIPPED = 4,
3935 /**
3936 * flip and rotate 90 degrees counter-clockwise
3937 */
3938 WL_OUTPUT_TRANSFORM_FLIPPED_90 = 5,
3939 /**
3940 * flip and rotate 180 degrees counter-clockwise
3941 */
3942 WL_OUTPUT_TRANSFORM_FLIPPED_180 = 6,
3943 /**
3944 * flip and rotate 270 degrees counter-clockwise
3945 */
3946 WL_OUTPUT_TRANSFORM_FLIPPED_270 = 7,
3947};
3948#endif /* WL_OUTPUT_TRANSFORM_ENUM */
3949
3950#ifndef WL_OUTPUT_MODE_ENUM
3951#define WL_OUTPUT_MODE_ENUM
3952/**
3953 * @ingroup iface_wl_output
3954 * mode information
3955 *
3956 * These flags describe properties of an output mode.
3957 * They are used in the flags bitfield of the mode event.
3958 */
3959enum wl_output_mode {
3960 /**
3961 * indicates this is the current mode
3962 */
3963 WL_OUTPUT_MODE_CURRENT = 0x1,
3964 /**
3965 * indicates this is the preferred mode
3966 */
3967 WL_OUTPUT_MODE_PREFERRED = 0x2,
3968};
3969#endif /* WL_OUTPUT_MODE_ENUM */
3970
3971/**
3972 * @ingroup iface_wl_output
3973 * @struct wl_output_interface
3974 */
3975struct wl_output_interface {
3976 /**
3977 * release the output object
3978 *
3979 * Using this request a client can tell the server that it is not
3980 * going to use the output object anymore.
3981 * @since 3
3982 */
3983 void (*release)(struct wl_client *client,
3984 struct wl_resource *resource);
3985};
3986
3987#define WL_OUTPUT_GEOMETRY 0
3988#define WL_OUTPUT_MODE 1
3989#define WL_OUTPUT_DONE 2
3990#define WL_OUTPUT_SCALE 3
3991
3992/**
3993 * @ingroup iface_wl_output
3994 */
3995#define WL_OUTPUT_GEOMETRY_SINCE_VERSION 1
3996/**
3997 * @ingroup iface_wl_output
3998 */
3999#define WL_OUTPUT_MODE_SINCE_VERSION 1
4000/**
4001 * @ingroup iface_wl_output
4002 */
4003#define WL_OUTPUT_DONE_SINCE_VERSION 2
4004/**
4005 * @ingroup iface_wl_output
4006 */
4007#define WL_OUTPUT_SCALE_SINCE_VERSION 2
4008
4009/**
4010 * @ingroup iface_wl_output
4011 */
4012#define WL_OUTPUT_RELEASE_SINCE_VERSION 3
4013
4014/**
4015 * @ingroup iface_wl_output
4016 * Sends an geometry event to the client owning the resource.
4017 * @param resource_ The client's resource
4018 * @param x x position within the global compositor space
4019 * @param y y position within the global compositor space
4020 * @param physical_width width in millimeters of the output
4021 * @param physical_height height in millimeters of the output
4022 * @param subpixel subpixel orientation of the output
4023 * @param make textual description of the manufacturer
4024 * @param model textual description of the model
4025 * @param transform transform that maps framebuffer to output
4026 */
4027static inline void
4028wl_output_send_geometry(struct wl_resource *resource_, int32_t x, int32_t y, int32_t physical_width, int32_t physical_height, int32_t subpixel, const char *make, const char *model, int32_t transform)
4029{
4030 wl_resource_post_event(resource_, WL_OUTPUT_GEOMETRY, x, y, physical_width, physical_height, subpixel, make, model, transform);
4031}
4032
4033/**
4034 * @ingroup iface_wl_output
4035 * Sends an mode event to the client owning the resource.
4036 * @param resource_ The client's resource
4037 * @param flags bitfield of mode flags
4038 * @param width width of the mode in hardware units
4039 * @param height height of the mode in hardware units
4040 * @param refresh vertical refresh rate in mHz
4041 */
4042static inline void
4043wl_output_send_mode(struct wl_resource *resource_, uint32_t flags, int32_t width, int32_t height, int32_t refresh)
4044{
4045 wl_resource_post_event(resource_, WL_OUTPUT_MODE, flags, width, height, refresh);
4046}
4047
4048/**
4049 * @ingroup iface_wl_output
4050 * Sends an done event to the client owning the resource.
4051 * @param resource_ The client's resource
4052 */
4053static inline void
4054wl_output_send_done(struct wl_resource *resource_)
4055{
4056 wl_resource_post_event(resource_, WL_OUTPUT_DONE);
4057}
4058
4059/**
4060 * @ingroup iface_wl_output
4061 * Sends an scale event to the client owning the resource.
4062 * @param resource_ The client's resource
4063 * @param factor scaling factor of output
4064 */
4065static inline void
4066wl_output_send_scale(struct wl_resource *resource_, int32_t factor)
4067{
4068 wl_resource_post_event(resource_, WL_OUTPUT_SCALE, factor);
4069}
4070
4071/**
4072 * @ingroup iface_wl_region
4073 * @struct wl_region_interface
4074 */
4075struct wl_region_interface {
4076 /**
4077 * destroy region
4078 *
4079 * Destroy the region. This will invalidate the object ID.
4080 */
4081 void (*destroy)(struct wl_client *client,
4082 struct wl_resource *resource);
4083 /**
4084 * add rectangle to region
4085 *
4086 * Add the specified rectangle to the region.
4087 * @param x region-local x coordinate
4088 * @param y region-local y coordinate
4089 * @param width rectangle width
4090 * @param height rectangle height
4091 */
4092 void (*add)(struct wl_client *client,
4093 struct wl_resource *resource,
4094 int32_t x,
4095 int32_t y,
4096 int32_t width,
4097 int32_t height);
4098 /**
4099 * subtract rectangle from region
4100 *
4101 * Subtract the specified rectangle from the region.
4102 * @param x region-local x coordinate
4103 * @param y region-local y coordinate
4104 * @param width rectangle width
4105 * @param height rectangle height
4106 */
4107 void (*subtract)(struct wl_client *client,
4108 struct wl_resource *resource,
4109 int32_t x,
4110 int32_t y,
4111 int32_t width,
4112 int32_t height);
4113};
4114
4115
4116/**
4117 * @ingroup iface_wl_region
4118 */
4119#define WL_REGION_DESTROY_SINCE_VERSION 1
4120/**
4121 * @ingroup iface_wl_region
4122 */
4123#define WL_REGION_ADD_SINCE_VERSION 1
4124/**
4125 * @ingroup iface_wl_region
4126 */
4127#define WL_REGION_SUBTRACT_SINCE_VERSION 1
4128
4129#ifndef WL_SUBCOMPOSITOR_ERROR_ENUM
4130#define WL_SUBCOMPOSITOR_ERROR_ENUM
4131enum wl_subcompositor_error {
4132 /**
4133 * the to-be sub-surface is invalid
4134 */
4135 WL_SUBCOMPOSITOR_ERROR_BAD_SURFACE = 0,
4136};
4137#endif /* WL_SUBCOMPOSITOR_ERROR_ENUM */
4138
4139/**
4140 * @ingroup iface_wl_subcompositor
4141 * @struct wl_subcompositor_interface
4142 */
4143struct wl_subcompositor_interface {
4144 /**
4145 * unbind from the subcompositor interface
4146 *
4147 * Informs the server that the client will not be using this
4148 * protocol object anymore. This does not affect any other objects,
4149 * wl_subsurface objects included.
4150 */
4151 void (*destroy)(struct wl_client *client,
4152 struct wl_resource *resource);
4153 /**
4154 * give a surface the role sub-surface
4155 *
4156 * Create a sub-surface interface for the given surface, and
4157 * associate it with the given parent surface. This turns a plain
4158 * wl_surface into a sub-surface.
4159 *
4160 * The to-be sub-surface must not already have another role, and it
4161 * must not have an existing wl_subsurface object. Otherwise a
4162 * protocol error is raised.
4163 *
4164 * Adding sub-surfaces to a parent is a double-buffered operation
4165 * on the parent (see wl_surface.commit). The effect of adding a
4166 * sub-surface becomes visible on the next time the state of the
4167 * parent surface is applied.
4168 *
4169 * This request modifies the behaviour of wl_surface.commit request
4170 * on the sub-surface, see the documentation on wl_subsurface
4171 * interface.
4172 * @param id the new sub-surface object ID
4173 * @param surface the surface to be turned into a sub-surface
4174 * @param parent the parent surface
4175 */
4176 void (*get_subsurface)(struct wl_client *client,
4177 struct wl_resource *resource,
4178 uint32_t id,
4179 struct wl_resource *surface,
4180 struct wl_resource *parent);
4181};
4182
4183
4184/**
4185 * @ingroup iface_wl_subcompositor
4186 */
4187#define WL_SUBCOMPOSITOR_DESTROY_SINCE_VERSION 1
4188/**
4189 * @ingroup iface_wl_subcompositor
4190 */
4191#define WL_SUBCOMPOSITOR_GET_SUBSURFACE_SINCE_VERSION 1
4192
4193#ifndef WL_SUBSURFACE_ERROR_ENUM
4194#define WL_SUBSURFACE_ERROR_ENUM
4195enum wl_subsurface_error {
4196 /**
4197 * wl_surface is not a sibling or the parent
4198 */
4199 WL_SUBSURFACE_ERROR_BAD_SURFACE = 0,
4200};
4201#endif /* WL_SUBSURFACE_ERROR_ENUM */
4202
4203/**
4204 * @ingroup iface_wl_subsurface
4205 * @struct wl_subsurface_interface
4206 */
4207struct wl_subsurface_interface {
4208 /**
4209 * remove sub-surface interface
4210 *
4211 * The sub-surface interface is removed from the wl_surface
4212 * object that was turned into a sub-surface with a
4213 * wl_subcompositor.get_subsurface request. The wl_surface's
4214 * association to the parent is deleted, and the wl_surface loses
4215 * its role as a sub-surface. The wl_surface is unmapped
4216 * immediately.
4217 */
4218 void (*destroy)(struct wl_client *client,
4219 struct wl_resource *resource);
4220 /**
4221 * reposition the sub-surface
4222 *
4223 * This schedules a sub-surface position change. The sub-surface
4224 * will be moved so that its origin (top left corner pixel) will be
4225 * at the location x, y of the parent surface coordinate system.
4226 * The coordinates are not restricted to the parent surface area.
4227 * Negative values are allowed.
4228 *
4229 * The scheduled coordinates will take effect whenever the state of
4230 * the parent surface is applied. When this happens depends on
4231 * whether the parent surface is in synchronized mode or not. See
4232 * wl_subsurface.set_sync and wl_subsurface.set_desync for details.
4233 *
4234 * If more than one set_position request is invoked by the client
4235 * before the commit of the parent surface, the position of a new
4236 * request always replaces the scheduled position from any previous
4237 * request.
4238 *
4239 * The initial position is 0, 0.
4240 * @param x x coordinate in the parent surface
4241 * @param y y coordinate in the parent surface
4242 */
4243 void (*set_position)(struct wl_client *client,
4244 struct wl_resource *resource,
4245 int32_t x,
4246 int32_t y);
4247 /**
4248 * restack the sub-surface
4249 *
4250 * This sub-surface is taken from the stack, and put back just
4251 * above the reference surface, changing the z-order of the
4252 * sub-surfaces. The reference surface must be one of the sibling
4253 * surfaces, or the parent surface. Using any other surface,
4254 * including this sub-surface, will cause a protocol error.
4255 *
4256 * The z-order is double-buffered. Requests are handled in order
4257 * and applied immediately to a pending state. The final pending
4258 * state is copied to the active state the next time the state of
4259 * the parent surface is applied. When this happens depends on
4260 * whether the parent surface is in synchronized mode or not. See
4261 * wl_subsurface.set_sync and wl_subsurface.set_desync for details.
4262 *
4263 * A new sub-surface is initially added as the top-most in the
4264 * stack of its siblings and parent.
4265 * @param sibling the reference surface
4266 */
4267 void (*place_above)(struct wl_client *client,
4268 struct wl_resource *resource,
4269 struct wl_resource *sibling);
4270 /**
4271 * restack the sub-surface
4272 *
4273 * The sub-surface is placed just below the reference surface.
4274 * See wl_subsurface.place_above.
4275 * @param sibling the reference surface
4276 */
4277 void (*place_below)(struct wl_client *client,
4278 struct wl_resource *resource,
4279 struct wl_resource *sibling);
4280 /**
4281 * set sub-surface to synchronized mode
4282 *
4283 * Change the commit behaviour of the sub-surface to synchronized
4284 * mode, also described as the parent dependent mode.
4285 *
4286 * In synchronized mode, wl_surface.commit on a sub-surface will
4287 * accumulate the committed state in a cache, but the state will
4288 * not be applied and hence will not change the compositor output.
4289 * The cached state is applied to the sub-surface immediately after
4290 * the parent surface's state is applied. This ensures atomic
4291 * updates of the parent and all its synchronized sub-surfaces.
4292 * Applying the cached state will invalidate the cache, so further
4293 * parent surface commits do not (re-)apply old state.
4294 *
4295 * See wl_subsurface for the recursive effect of this mode.
4296 */
4297 void (*set_sync)(struct wl_client *client,
4298 struct wl_resource *resource);
4299 /**
4300 * set sub-surface to desynchronized mode
4301 *
4302 * Change the commit behaviour of the sub-surface to
4303 * desynchronized mode, also described as independent or freely
4304 * running mode.
4305 *
4306 * In desynchronized mode, wl_surface.commit on a sub-surface will
4307 * apply the pending state directly, without caching, as happens
4308 * normally with a wl_surface. Calling wl_surface.commit on the
4309 * parent surface has no effect on the sub-surface's wl_surface
4310 * state. This mode allows a sub-surface to be updated on its own.
4311 *
4312 * If cached state exists when wl_surface.commit is called in
4313 * desynchronized mode, the pending state is added to the cached
4314 * state, and applied as a whole. This invalidates the cache.
4315 *
4316 * Note: even if a sub-surface is set to desynchronized, a parent
4317 * sub-surface may override it to behave as synchronized. For
4318 * details, see wl_subsurface.
4319 *
4320 * If a surface's parent surface behaves as desynchronized, then
4321 * the cached state is applied on set_desync.
4322 */
4323 void (*set_desync)(struct wl_client *client,
4324 struct wl_resource *resource);
4325};
4326
4327
4328/**
4329 * @ingroup iface_wl_subsurface
4330 */
4331#define WL_SUBSURFACE_DESTROY_SINCE_VERSION 1
4332/**
4333 * @ingroup iface_wl_subsurface
4334 */
4335#define WL_SUBSURFACE_SET_POSITION_SINCE_VERSION 1
4336/**
4337 * @ingroup iface_wl_subsurface
4338 */
4339#define WL_SUBSURFACE_PLACE_ABOVE_SINCE_VERSION 1
4340/**
4341 * @ingroup iface_wl_subsurface
4342 */
4343#define WL_SUBSURFACE_PLACE_BELOW_SINCE_VERSION 1
4344/**
4345 * @ingroup iface_wl_subsurface
4346 */
4347#define WL_SUBSURFACE_SET_SYNC_SINCE_VERSION 1
4348/**
4349 * @ingroup iface_wl_subsurface
4350 */
4351#define WL_SUBSURFACE_SET_DESYNC_SINCE_VERSION 1
4352
4353#ifdef __cplusplus
4354}
4355#endif
4356
4357#endif
4358