Differential D18465 Diff 52275 plugins/platforms/wayland/wayland_backend.cpp

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plugins/platforms/wayland/wayland_backend.cpp

1/******************************************************************** 1​/********************************************************************
2 KWin - the KDE window manager 2​ KWin - the KDE window manager
3 This file is part of the KDE project. 3​ This file is part of the KDE project.
4 4​
5Copyright (C) 2013 Martin Gräßlin <mgraesslin@kde.org> 5​Copyright 2019 Roman Gilg <subdiff@gmail.com>
6​Copyright 2013 Martin Gräßlin <mgraesslin@kde.org>
6 7​
7This program is free software; you can redistribute it and/or modify 8​This program is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by 9​it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2 of the License, or 10​the Free Software Foundation; either version 2 of the License, or
10(at your option) any later version. 11​(at your option) any later version.
11 12​
12This program is distributed in the hope that it will be useful, 13​This program is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of 14​but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15​MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details. 16​GNU General Public License for more details.
16 17​
17You should have received a copy of the GNU General Public License 18​You should have received a copy of the GNU General Public License
18along with this program. If not, see <http://www.gnu.org/licenses/>. 19​along with this program. If not, see <http://www.gnu.org/licenses/>.
19*********************************************************************/ 20​*********************************************************************/
20// own ​
21#include "wayland_backend.h" 21​#include "wayland_backend.h"
22#include <config-kwin.h> 22​
23// KWin 23​#if HAVE_WAYLAND_EGL
24#include "cursor.h" 24​#include "egl_wayland_backend.h"
25​#endif
25#include "logging.h" 26​#include "logging.h"
26#include "main.h" ​
27#include "scene_qpainter_wayland_backend.h" 27​#include "scene_qpainter_wayland_backend.h"
28​#include "wayland_output.h"
29​
30​#include "composite.h"
31​#include "cursor.h"
32​#include "input.h"
33​#include "main.h"
34​#include "outputscreens.h"
35​#include "pointer_input.h"
28#include "screens.h" 36​#include "screens.h"
29#include "wayland_server.h" ​
30#include "wayland_cursor_theme.h" 37​#include "wayland_cursor_theme.h"
31#if HAVE_WAYLAND_EGL 38​#include "wayland_server.h"
32#include "egl_wayland_backend.h" 39​
33#endif 40​#include <config-kwin.h>
41​
34#include <KWayland/Client/buffer.h> 42​#include <KWayland/Client/buffer.h>
35#include <KWayland/Client/compositor.h> 43​#include <KWayland/Client/compositor.h>
36#include <KWayland/Client/connection_thread.h> 44​#include <KWayland/Client/connection_thread.h>
37#include <KWayland/Client/event_queue.h> 45​#include <KWayland/Client/event_queue.h>
38#include <KWayland/Client/keyboard.h> 46​#include <KWayland/Client/keyboard.h>
39#include <KWayland/Client/pointer.h> 47​#include <KWayland/Client/pointer.h>
40#include <KWayland/Client/pointerconstraints.h> 48​#include <KWayland/Client/pointerconstraints.h>
41#include <KWayland/Client/pointergestures.h> 49​#include <KWayland/Client/pointergestures.h>
42#include <KWayland/Client/region.h> ​
43#include <KWayland/Client/registry.h> 50​#include <KWayland/Client/registry.h>
51​#include <KWayland/Client/relativepointer.h>
44#include <KWayland/Client/seat.h> 52​#include <KWayland/Client/seat.h>
45#include <KWayland/Client/server_decoration.h> 53​#include <KWayland/Client/server_decoration.h>
46#include <KWayland/Client/shell.h> 54​#include <KWayland/Client/shell.h>
47#include <KWayland/Client/shm_pool.h> 55​#include <KWayland/Client/shm_pool.h>
56​#include <KWayland/Client/subcompositor.h>
57​#include <KWayland/Client/subsurface.h>
48#include <KWayland/Client/surface.h> 58​#include <KWayland/Client/surface.h>
49#include <KWayland/Client/touch.h> 59​#include <KWayland/Client/touch.h>
50#include <KWayland/Client/xdgshell.h> 60​#include <KWayland/Client/xdgshell.h>
51#include <KWayland/Server/buffer_interface.h> 61​
52#include <KWayland/Server/display.h> ​
53#include <KWayland/Server/seat_interface.h> 62​#include <KWayland/Server/seat_interface.h>
54#include <KWayland/Server/surface_interface.h> ​
55 63​
56#include <KLocalizedString> ​
57// Qt ​
58#include <QMetaMethod> 64​#include <QMetaMethod>
59#include <QThread> 65​#include <QThread>
60// Wayland ​
61#include <wayland-cursor.h> ​
62 66​
63#include <linux/input.h> 67​#include <linux/input.h>
68​#include <wayland-cursor.h>
64 69​
65namespace KWin 70​namespace KWin
66{ 71​{
67namespace Wayland 72​namespace Wayland
68{ 73​{
69 74​
70using namespace KWayland::Client; 75​using namespace KWayland::Client;
71 76​
77​WaylandCursor::WaylandCursor(WaylandBackend *backend)
78​ : QObject(backend)
79​ , m_backend(backend)
80​{
81​ resetSurface();
82​}
83​
84​void WaylandCursor::resetSurface()
85​{
86​ delete m_surface;
87​ m_surface = backend()->compositor()->createSurface(this);
88​}
89​
90​void WaylandCursor::init()
91​{
92​ installImage();
93​}
94​
95​WaylandCursor::~WaylandCursor()
96​{
97​ delete m_surface;
98​}
99​
100​void WaylandCursor::installImage()
101​{
102​ const QImage image = m_backend->softwareCursor();
103​ if (image.isNull() || image.size().isEmpty()) {
104​ doInstallImage(nullptr, QSize());
105​ return;
106​ }
107​ wl_buffer *imageBuffer = *(m_backend->shmPool()->createBuffer(image).data());
108​ doInstallImage(imageBuffer, image.size());
109​}
110​
111​void WaylandCursor::doInstallImage(wl_buffer *image, const QSize &size)
112​{
113​ auto *pointer = m_backend->seat()->pointer();
114​ if (!pointer || !pointer->isValid()) {
115​ return;
116​ }
117​ pointer->setCursor(m_surface, image ? m_backend->softwareCursorHotspot() : QPoint());
118​ drawSurface(image, size);
119​}
120​
121​void WaylandCursor::drawSurface(wl_buffer *image, const QSize &size)
122​{
123​ m_surface->attachBuffer(image);
124​ m_surface->damage(QRect(QPoint(0,0), size));
125​ m_surface->commit(Surface::CommitFlag::None);
126​ m_backend->flush();
127​}
128​
129​WaylandSubSurfaceCursor::WaylandSubSurfaceCursor(WaylandBackend *backend)
130​ : WaylandCursor(backend)
131​{
132​}
133​
134​void WaylandSubSurfaceCursor::init()
135​{
136​ if (auto *pointer = backend()->seat()->pointer()) {
137​ pointer->hideCursor();
138​ }
139​}
140​
141​WaylandSubSurfaceCursor::~WaylandSubSurfaceCursor()
142​{
143​ delete m_subSurface;
144​}
145​
146​void WaylandSubSurfaceCursor::changeOutput(WaylandOutput *output)
147​{
148​ delete m_subSurface;
149​ m_subSurface = nullptr;
150​ m_output = output;
151​ if (!output) {
152​ return;
153​ }
154​ createSubSurface();
155​ surface()->commit();
156​}
157​
158​void WaylandSubSurfaceCursor::createSubSurface()
159​{
160​ if (m_subSurface) {
161​ return;
162​ }
163​ if (!m_output) {
164​ return;
165​ }
166​ resetSurface();
167​ m_subSurface = backend()->subCompositor()->createSubSurface(surface(), m_output->surface(), this);
168​ m_subSurface->setMode(SubSurface::Mode::Desynchronized);
169​}
170​
171​void WaylandSubSurfaceCursor::doInstallImage(wl_buffer *image, const QSize &size)
172​{
173​ if (!image) {
174​ delete m_subSurface;
175​ m_subSurface = nullptr;
176​ return;
177​ }
178​ createSubSurface();
179​ // cursor position might have changed due to different cursor hot spot
180​ move(input()->pointer()->pos());
181​ drawSurface(image, size);
182​}
183​
184​QPointF WaylandSubSurfaceCursor::absoluteToRelativePosition(const QPointF &position)
185​{
186​ auto ret = position - m_output->geometry().topLeft() - backend()->softwareCursorHotspot();
187​ return ret;
188​}
189​
190​void WaylandSubSurfaceCursor::move(const QPointF &globalPosition)
191​{
192​ auto *output = backend()->getOutputAt(globalPosition.toPoint());
193​ if (!m_output || (output && m_output != output)) {
194​ changeOutput(output);
195​ if (!m_output) {
196​ // cursor might be off the grid
197​ return;
198​ }
199​ installImage();
200​ return;
201​ }
202​ if (!m_subSurface) {
203​ return;
204​ }
205​ // place the sub-surface relative to the output it is on and factor in the hotspot
206​ const auto relativePosition = globalPosition.toPoint() - backend()->softwareCursorHotspot() - m_output->geometry().topLeft();
207​ m_subSurface->setPosition(relativePosition);
208​ Compositor::self()->addRepaintFull();
209​}
210​
72WaylandSeat::WaylandSeat(wl_seat *seat, WaylandBackend *backend) 211​WaylandSeat::WaylandSeat(wl_seat *seat, WaylandBackend *backend)
73 : QObject(NULL) 212​ : QObject(NULL)
74 , m_seat(new Seat(this)) 213​ , m_seat(new Seat(this))
75 , m_pointer(NULL) 214​ , m_pointer(NULL)
76 , m_keyboard(NULL) 215​ , m_keyboard(NULL)
77 , m_touch(nullptr) 216​ , m_touch(nullptr)
78 , m_cursor(NULL) ​
79 , m_enteredSerial(0) 217​ , m_enteredSerial(0)
80 , m_backend(backend) 218​ , m_backend(backend)
81 , m_installCursor(false) ​
82{ 219​{
83 m_seat->setup(seat); 220​ m_seat->setup(seat);
84 connect(m_seat, &Seat::hasKeyboardChanged, this, 221​ connect(m_seat, &Seat::hasKeyboardChanged, this,
85 [this](bool hasKeyboard) { 222​ [this](bool hasKeyboard) {
86 if (hasKeyboard) { 223​ if (hasKeyboard) {
87 m_keyboard = m_seat->createKeyboard(this); 224​ m_keyboard = m_seat->createKeyboard(this);
88 connect(m_keyboard, &Keyboard::keyChanged, this, 225​ connect(m_keyboard, &Keyboard::keyChanged, this,
89 [this](quint32 key, Keyboard::KeyState state, quint32 time) { 226​ [this](quint32 key, Keyboard::KeyState state, quint32 time) {
90 switch (state) { 227​ switch (state) {
91 case Keyboard::KeyState::Pressed: 228​ case Keyboard::KeyState::Pressed:
92 if (key == KEY_RIGHTCTRL) { 229​ if (key == KEY_RIGHTCTRL) {
93 m_backend->togglePointerConfinement(); 230​ m_backend->togglePointerLock();
94 } 231​ }
95 m_backend->keyboardKeyPressed(key, time); 232​ m_backend->keyboardKeyPressed(key, time);
96 break; 233​ break;
97 case Keyboard::KeyState::Released: 234​ case Keyboard::KeyState::Released:
98 m_backend->keyboardKeyReleased(key, time); 235​ m_backend->keyboardKeyReleased(key, time);
99 break; 236​ break;
100 default: 237​ default:
101 Q_UNREACHABLE(); 238​ Q_UNREACHABLE();
Show All 16 Lines
118 } 255​ }
119 ); 256​ );
120 connect(m_seat, &Seat::hasPointerChanged, this, 257​ connect(m_seat, &Seat::hasPointerChanged, this,
121 [this](bool hasPointer) { 258​ [this](bool hasPointer) {
122 if (hasPointer && !m_pointer) { 259​ if (hasPointer && !m_pointer) {
123 m_pointer = m_seat->createPointer(this); 260​ m_pointer = m_seat->createPointer(this);
124 setupPointerGestures(); 261​ setupPointerGestures();
125 connect(m_pointer, &Pointer::entered, this, 262​ connect(m_pointer, &Pointer::entered, this,
126 [this](quint32 serial) { 263​ [this](quint32 serial, const QPointF &relativeToSurface) {
264​ Q_UNUSED(relativeToSurface)
127 m_enteredSerial = serial; 265​ m_enteredSerial = serial;
128 if (!m_installCursor) { ​
129 // explicitly hide cursor ​
130 m_pointer->hideCursor(); ​
131 } ​
132 } 266​ }
133 ); 267​ );
134 connect(m_pointer, &Pointer::motion, this, 268​ connect(m_pointer, &Pointer::motion, this,
135 [this](const QPointF &relativeToSurface, quint32 time) { 269​ [this](const QPointF &relativeToSurface, quint32 time) {
136 m_backend->pointerMotion(relativeToSurface, time); 270​ m_backend->pointerMotionRelativeToOutput(relativeToSurface, time);
137 } 271​ }
138 ); 272​ );
139 connect(m_pointer, &Pointer::buttonStateChanged, this, 273​ connect(m_pointer, &Pointer::buttonStateChanged, this,
140 [this](quint32 serial, quint32 time, quint32 button, Pointer::ButtonState state) { 274​ [this](quint32 serial, quint32 time, quint32 button, Pointer::ButtonState state) {
141 Q_UNUSED(serial) 275​ Q_UNUSED(serial)
142 switch (state) { 276​ switch (state) {
143 case Pointer::ButtonState::Pressed: 277​ case Pointer::ButtonState::Pressed:
144 m_backend->pointerButtonPressed(button, time); 278​ m_backend->pointerButtonPressed(button, time);
▲ Show 20 Lines • Show All 62 Lines • ▼ Show 20 Line(s)339 if (server) {
207 SeatInterface *si = server->seat(); 341​ SeatInterface *si = server->seat();
208 connect(m_seat, &Seat::hasKeyboardChanged, si, &SeatInterface::setHasKeyboard); 342​ connect(m_seat, &Seat::hasKeyboardChanged, si, &SeatInterface::setHasKeyboard);
209 connect(m_seat, &Seat::hasPointerChanged, si, &SeatInterface::setHasPointer); 343​ connect(m_seat, &Seat::hasPointerChanged, si, &SeatInterface::setHasPointer);
210 connect(m_seat, &Seat::hasTouchChanged, si, &SeatInterface::setHasTouch); 344​ connect(m_seat, &Seat::hasTouchChanged, si, &SeatInterface::setHasTouch);
211 connect(m_seat, &Seat::nameChanged, si, &SeatInterface::setName); 345​ connect(m_seat, &Seat::nameChanged, si, &SeatInterface::setName);
212 } 346​ }
213} 347​}
214 348​
349​void WaylandBackend::pointerMotionRelativeToOutput(const QPointF &position, quint32 time)
350​{
351​ auto outputIt = std::find_if(m_outputs.begin(), m_outputs.end(), [this](WaylandOutput *wo) {
352​ return wo->surface() == m_seat->pointer()->enteredSurface();
353​ });
354​ Q_ASSERT(outputIt != m_outputs.end());
355​ const QPointF outputPosition = (*outputIt)->geometry().topLeft() + position;
356​ Platform::pointerMotion(outputPosition, time);
357​}
358​
215WaylandSeat::~WaylandSeat() 359​WaylandSeat::~WaylandSeat()
216{ 360​{
217 destroyPointer(); 361​ destroyPointer();
218 destroyKeyboard(); 362​ destroyKeyboard();
219 destroyTouch(); 363​ destroyTouch();
220} 364​}
221 365​
222void WaylandSeat::destroyPointer() 366​void WaylandSeat::destroyPointer()
Show All 13 Lines
236} 380​}
237 381​
238void WaylandSeat::destroyTouch() 382​void WaylandSeat::destroyTouch()
239{ 383​{
240 delete m_touch; 384​ delete m_touch;
241 m_touch = nullptr; 385​ m_touch = nullptr;
242} 386​}
243 387​
244void WaylandSeat::installCursorImage(wl_buffer *image, const QSize &size, const QPoint &hotSpot) ​
245{ ​
246 if (!m_installCursor) { ​
247 return; ​
248 } ​
249 if (!m_pointer || !m_pointer->isValid()) { ​
250 return; ​
251 } ​
252 if (!m_cursor) { ​
253 m_cursor = m_backend->compositor()->createSurface(this); ​
254 } ​
255 if (!m_cursor || !m_cursor->isValid()) { ​
256 return; ​
257 } ​
258 m_pointer->setCursor(m_cursor, hotSpot); ​
259 m_cursor->attachBuffer(image); ​
260 m_cursor->damage(QRect(QPoint(0,0), size)); ​
261 m_cursor->commit(Surface::CommitFlag::None); ​
262 m_backend->flush(); ​
263} ​
264 ​
265void WaylandSeat::installCursorImage(const QImage &image, const QPoint &hotSpot) ​
266{ ​
267 if (image.isNull()) { ​
268 installCursorImage(nullptr, QSize(), QPoint()); ​
269 return; ​
270 } ​
271 installCursorImage(*(m_backend->shmPool()->createBuffer(image).data()), image.size(), hotSpot); ​
272} ​
273 ​
274void WaylandSeat::setInstallCursor(bool install) ​
275{ ​
276 // TODO: remove, add? ​
277 m_installCursor = install; ​
278} ​
279 ​
280void WaylandSeat::setupPointerGestures() 388​void WaylandSeat::setupPointerGestures()
281{ 389​{
282 if (!m_pointer || !m_gesturesInterface) { 390​ if (!m_pointer || !m_gesturesInterface) {
283 return; 391​ return;
284 } 392​ }
285 if (m_pinchGesture || m_swipeGesture) { 393​ if (m_pinchGesture || m_swipeGesture) {
286 return; 394​ return;
287 } 395​ }
▲ Show 20 Lines • Show All 45 Lines • ▼ Show 20 Line(s)
333} 441​}
334 442​
335WaylandBackend::WaylandBackend(QObject *parent) 443​WaylandBackend::WaylandBackend(QObject *parent)
336 : Platform(parent) 444​ : Platform(parent)
337 , m_display(nullptr) 445​ , m_display(nullptr)
338 , m_eventQueue(new EventQueue(this)) 446​ , m_eventQueue(new EventQueue(this))
339 , m_registry(new Registry(this)) 447​ , m_registry(new Registry(this))
340 , m_compositor(new KWayland::Client::Compositor(this)) 448​ , m_compositor(new KWayland::Client::Compositor(this))
449​ , m_subCompositor(new KWayland::Client::SubCompositor(this))
davidedmundsonUnsubmitted
Not Done

where do we use this?

davidedmundson: where do we use this?
romanggAuthorUnsubmitted
Not Done

If the cursor is locked, it will be painted to a sub-surface.

romangg: If the cursor is locked, it will be painted to a sub-surface.
341 , m_shell(new Shell(this)) 450​ , m_shell(new Shell(this))
342 , m_surface(nullptr) ​
343 , m_shellSurface(NULL) ​
344 , m_seat() ​
345 , m_shm(new ShmPool(this)) 451​ , m_shm(new ShmPool(this))
346 , m_connectionThreadObject(new ConnectionThread(nullptr)) 452​ , m_connectionThreadObject(new ConnectionThread(nullptr))
347 , m_connectionThread(nullptr) 453​ , m_connectionThread(nullptr)
348{ 454​{
349 connect(this, &WaylandBackend::connectionFailed, this, &WaylandBackend::initFailed); 455​ connect(this, &WaylandBackend::connectionFailed, this, &WaylandBackend::initFailed);
350 connect(this, &WaylandBackend::shellSurfaceSizeChanged, this, &WaylandBackend::screenSizeChanged); ​
351} 456​}
352 457​
353WaylandBackend::~WaylandBackend() 458​WaylandBackend::~WaylandBackend()
354{ 459​{
355 if (m_pointerConstraints) { 460​ if (m_pointerConstraints) {
356 m_pointerConstraints->release(); 461​ m_pointerConstraints->release();
357 } 462​ }
358 if (m_xdgShellSurface) { 463​ delete m_waylandCursor;
359 m_xdgShellSurface->release(); 464​
360 } 465​ qDeleteAll(m_outputs);
361 if (m_shellSurface) { 466​
362 m_shellSurface->release(); ​
363 } ​
364 if (m_surface) { ​
365 m_surface->release(); ​
366 } ​
367 if (m_xdgShell) { 467​ if (m_xdgShell) {
368 m_xdgShell->release(); 468​ m_xdgShell->release();
369 } 469​ }
370 m_shell->release(); 470​ m_shell->release();
471​ m_subCompositor->release();
371 m_compositor->release(); 472​ m_compositor->release();
372 m_registry->release(); 473​ m_registry->release();
373 m_seat.reset(); 474​ delete m_seat;
374 m_shm->release(); 475​ m_shm->release();
375 m_eventQueue->release(); 476​ m_eventQueue->release();
376 477​
377 m_connectionThreadObject->deleteLater(); 478​ m_connectionThreadObject->deleteLater();
378 m_connectionThread->quit(); 479​ m_connectionThread->quit();
379 m_connectionThread->wait(); 480​ m_connectionThread->wait();
380 481​
381 qCDebug(KWIN_WAYLAND_BACKEND) << "Destroyed Wayland display"; 482​ qCDebug(KWIN_WAYLAND_BACKEND) << "Destroyed Wayland display";
382} 483​}
383 484​
384void WaylandBackend::init() 485​void WaylandBackend::init()
385{ 486​{
386 connect(m_registry, &Registry::compositorAnnounced, this, 487​ connect(m_registry, &Registry::compositorAnnounced, this,
387 [this](quint32 name) { 488​ [this](quint32 name) {
388 m_compositor->setup(m_registry->bindCompositor(name, 1)); 489​ m_compositor->setup(m_registry->bindCompositor(name, 1));
389 } 490​ }
390 ); 491​ );
492​ connect(m_registry, &Registry::subCompositorAnnounced, this,
493​ [this](quint32 name) {
494​ m_subCompositor->setup(m_registry->bindSubCompositor(name, 1));
495​ }
496​ );
391 connect(m_registry, &Registry::shellAnnounced, this, 497​ connect(m_registry, &Registry::shellAnnounced, this,
392 [this](quint32 name) { 498​ [this](quint32 name) {
393 m_shell->setup(m_registry->bindShell(name, 1)); 499​ m_shell->setup(m_registry->bindShell(name, 1));
394 } 500​ }
395 ); 501​ );
396 connect(m_registry, &Registry::seatAnnounced, this, 502​ connect(m_registry, &Registry::seatAnnounced, this,
397 [this](quint32 name) { 503​ [this](quint32 name) {
398 if (Application::usesLibinput()) { 504​ if (Application::usesLibinput()) {
399 return; 505​ return;
400 } 506​ }
401 m_seat.reset(new WaylandSeat(m_registry->bindSeat(name, 2), this)); 507​ m_seat = new WaylandSeat(m_registry->bindSeat(name, 2), this);
402 } 508​ }
403 ); 509​ );
404 connect(m_registry, &Registry::shmAnnounced, this, 510​ connect(m_registry, &Registry::shmAnnounced, this,
405 [this](quint32 name) { 511​ [this](quint32 name) {
406 m_shm->setup(m_registry->bindShm(name, 1)); 512​ m_shm->setup(m_registry->bindShm(name, 1));
407 } 513​ }
408 ); 514​ );
515​ connect(m_registry, &Registry::relativePointerManagerUnstableV1Announced, this,
516​ [this](quint32 name, quint32 version) {
517​ if (m_relativePointerManager) {
518​ return;
519​ }
520​ m_relativePointerManager = m_registry->createRelativePointerManager(name, version, this);
521​ if (m_pointerConstraints) {
522​ emit pointerLockSupportedChanged();
523​ }
524​ }
525​ );
409 connect(m_registry, &Registry::pointerConstraintsUnstableV1Announced, this, 526​ connect(m_registry, &Registry::pointerConstraintsUnstableV1Announced, this,
410 [this](quint32 name, quint32 version) { 527​ [this](quint32 name, quint32 version) {
411 if (m_pointerConstraints) { 528​ if (m_pointerConstraints) {
412 return; 529​ return;
413 } 530​ }
414 m_pointerConstraints = m_registry->createPointerConstraints(name, version, this); 531​ m_pointerConstraints = m_registry->createPointerConstraints(name, version, this);
415 updateWindowTitle(); 532​ if (m_relativePointerManager) {
533​ emit pointerLockSupportedChanged();
534​ }
416 } 535​ }
417 ); 536​ );
418 connect(m_registry, &Registry::interfacesAnnounced, this, &WaylandBackend::createSurface); 537​ connect(m_registry, &Registry::interfacesAnnounced, this, &WaylandBackend::createOutputs);
419 connect(m_registry, &Registry::interfacesAnnounced, this, 538​ connect(m_registry, &Registry::interfacesAnnounced, this,
420 [this] { 539​ [this] {
421 if (!m_seat) { 540​ if (!m_seat) {
422 return; 541​ return;
423 } 542​ }
424 const auto gi = m_registry->interface(Registry::Interface::PointerGesturesUnstableV1); 543​ const auto gi = m_registry->interface(Registry::Interface::PointerGesturesUnstableV1);
425 if (gi.name == 0) { 544​ if (gi.name == 0) {
426 return; 545​ return;
427 } 546​ }
428 auto gesturesInterface = m_registry->createPointerGestures(gi.name, gi.version, m_seat.data()); 547​ auto gesturesInterface = m_registry->createPointerGestures(gi.name, gi.version, m_seat);
429 m_seat->installGesturesInterface(gesturesInterface); 548​ m_seat->installGesturesInterface(gesturesInterface);
549​
550​ m_waylandCursor = new WaylandCursor(this);
430 } 551​ }
431 ); 552​ );
432 if (!deviceIdentifier().isEmpty()) { 553​ if (!deviceIdentifier().isEmpty()) {
433 m_connectionThreadObject->setSocketName(deviceIdentifier()); 554​ m_connectionThreadObject->setSocketName(deviceIdentifier());
434 } 555​ }
435 connect(this, &WaylandBackend::cursorChanged, this, 556​ connect(this, &WaylandBackend::cursorChanged, this,
436 [this] { 557​ [this] {
437 if (m_seat.isNull() || !m_seat->isInstallCursor()) { 558​ if (!m_seat) {
438 return; 559​ return;
439 } 560​ }
440 m_seat->installCursorImage(softwareCursor(), softwareCursorHotspot()); 561​ m_waylandCursor->installImage();
441 markCursorAsRendered(); 562​ markCursorAsRendered();
442 } 563​ }
443 ); 564​ );
565​ connect(this, &WaylandBackend::pointerLockChanged, this, [this](bool locked) {
566​ delete m_waylandCursor;
567​ if (locked) {
568​ Q_ASSERT(!m_relativePointer);
569​ m_waylandCursor = new WaylandSubSurfaceCursor(this);
570​ m_waylandCursor->move(input()->pointer()->pos());
571​ m_relativePointer = m_relativePointerManager->createRelativePointer(m_seat->pointer(), this);
572​ if (!m_relativePointer->isValid()) {
573​ return;
574​ }
575​ connect(m_relativePointer, &RelativePointer::relativeMotion,
576​ this, &WaylandBackend::relativeMotionHandler);
577​ } else {
578​ delete m_relativePointer;
579​ m_relativePointer = nullptr;
580​ m_waylandCursor = new WaylandCursor(this);
581​ }
582​ m_waylandCursor->init();
583​ });
444 initConnection(); 584​ initConnection();
445} 585​}
446 586​
587​void WaylandBackend::relativeMotionHandler(const QSizeF &delta, const QSizeF &deltaNonAccelerated, quint64 timestamp)
588​{
589​ Q_UNUSED(deltaNonAccelerated)
590​ Q_ASSERT(m_waylandCursor);
591​
592​ const auto oldGlobalPos = input()->pointer()->pos();
593​ const QPointF newPos = oldGlobalPos + QPointF(delta.width(), delta.height());
594​ m_waylandCursor->move(newPos);
595​ Platform::pointerMotion(newPos, timestamp);
596​}
597​
447void WaylandBackend::initConnection() 598​void WaylandBackend::initConnection()
448{ 599​{
449 connect(m_connectionThreadObject, &ConnectionThread::connected, this, 600​ connect(m_connectionThreadObject, &ConnectionThread::connected, this,
450 [this]() { 601​ [this]() {
451 // create the event queue for the main gui thread 602​ // create the event queue for the main gui thread
452 m_display = m_connectionThreadObject->display(); 603​ m_display = m_connectionThreadObject->display();
453 m_eventQueue->setup(m_connectionThreadObject); 604​ m_eventQueue->setup(m_connectionThreadObject);
454 m_registry->setEventQueue(m_eventQueue); 605​ m_registry->setEventQueue(m_eventQueue);
455 // setup registry 606​ // setup registry
456 m_registry->create(m_display); 607​ m_registry->create(m_display);
457 m_registry->setup(); 608​ m_registry->setup();
458 }, 609​ },
459 Qt::QueuedConnection); 610​ Qt::QueuedConnection);
460 connect(m_connectionThreadObject, &ConnectionThread::connectionDied, this, 611​ connect(m_connectionThreadObject, &ConnectionThread::connectionDied, this,
461 [this]() { 612​ [this]() {
462 setReady(false); 613​ setReady(false);
463 emit systemCompositorDied(); 614​ emit systemCompositorDied();
464 m_seat.reset(); 615​ delete m_seat;
465 m_shm->destroy(); 616​ m_shm->destroy();
466 if (m_xdgShellSurface) { 617​
467 m_xdgShellSurface->destroy(); 618​ qDeleteAll(m_outputs);
468 delete m_xdgShellSurface; 619​ m_outputs.clear();
469 m_xdgShellSurface = nullptr; 620​
470 } ​
471 if (m_shellSurface) { ​
472 m_shellSurface->destroy(); ​
473 delete m_shellSurface; ​
474 m_shellSurface = nullptr; ​
475 } ​
476 if (m_surface) { ​
477 m_surface->destroy(); ​
478 delete m_surface; ​
479 m_surface = nullptr; ​
480 } ​
481 if (m_shell) { 621​ if (m_shell) {
482 m_shell->destroy(); 622​ m_shell->destroy();
483 } 623​ }
484 if (m_xdgShell) { 624​ if (m_xdgShell) {
485 m_xdgShell->destroy(); 625​ m_xdgShell->destroy();
486 } 626​ }
627​ m_subCompositor->destroy();
487 m_compositor->destroy(); 628​ m_compositor->destroy();
488 m_registry->destroy(); 629​ m_registry->destroy();
489 m_eventQueue->destroy(); 630​ m_eventQueue->destroy();
490 if (m_display) { 631​ if (m_display) {
491 m_display = nullptr; 632​ m_display = nullptr;
492 } 633​ }
493 }, 634​ },
494 Qt::QueuedConnection); 635​ Qt::QueuedConnection);
495 connect(m_connectionThreadObject, &ConnectionThread::failed, this, &WaylandBackend::connectionFailed, Qt::QueuedConnection); 636​ connect(m_connectionThreadObject, &ConnectionThread::failed, this, &WaylandBackend::connectionFailed, Qt::QueuedConnection);
496 637​
497 m_connectionThread = new QThread(this); 638​ m_connectionThread = new QThread(this);
498 m_connectionThreadObject->moveToThread(m_connectionThread); 639​ m_connectionThreadObject->moveToThread(m_connectionThread);
499 m_connectionThread->start(); 640​ m_connectionThread->start();
500 641​
501 m_connectionThreadObject->initConnection(); 642​ m_connectionThreadObject->initConnection();
502} 643​}
503 644​
504void WaylandBackend::createSurface() 645​void WaylandBackend::updateScreenSize(WaylandOutput *output)
646​{
647​ auto it = std::find(m_outputs.begin(), m_outputs.end(), output);
648​
649​ int nextLogicalPosition = output->geometry().topRight().x();
650​ while (++it != m_outputs.end()) {
651​ const QRect geo = (*it)->geometry();
652​ (*it)->setGeometry(QPoint(nextLogicalPosition, 0), geo.size());
653​ nextLogicalPosition = geo.topRight().x();
654​ }
655​}
656​
657​void WaylandBackend::createOutputs()
505{ 658​{
506 m_surface = m_compositor->createSurface(this); 659​ using namespace KWayland::Client;
507 if (!m_surface || !m_surface->isValid()) { 660​
661​ const auto ssdManagerIface = m_registry->interface(Registry::Interface::ServerSideDecorationManager);
662​ ServerSideDecorationManager *ssdManager = ssdManagerIface.name == 0 ? nullptr :
663​ m_registry->createServerSideDecorationManager(ssdManagerIface.name, ssdManagerIface.version, this);
664​
665​
666​ const auto xdgIface = m_registry->interface(Registry::Interface::XdgShellUnstableV6);
667​ if (xdgIface.name != 0) {
668​ m_xdgShell = m_registry->createXdgShell(xdgIface.name, xdgIface.version, this);
669​ }
670​
671​ // we need to multiply the initial window size with the scale in order to
672​ // create an output window of this size in the end
673​ const int pixelWidth = initialWindowSize().width() * initialOutputScale() + 0.5;
674​ const int pixelHeight = initialWindowSize().height() * initialOutputScale() + 0.5;
675​ const int logicalWidth = initialWindowSize().width();
676​
677​ int logicalWidthSum = 0;
678​ for (int i = 0; i < initialOutputCount(); i++) {
679​ auto surface = m_compositor->createSurface(this);
680​ if (!surface || !surface->isValid()) {
508 qCCritical(KWIN_WAYLAND_BACKEND) << "Creating Wayland Surface failed"; 681​ qCCritical(KWIN_WAYLAND_BACKEND) << "Creating Wayland Surface failed";
509 return; 682​ return;
510 } 683​ }
511 using namespace KWayland::Client; 684​
512 auto iface = m_registry->interface(Registry::Interface::ServerSideDecorationManager); 685​ if (ssdManager) {
513 if (iface.name != 0) { 686​ auto decoration = ssdManager->create(surface, this);
514 auto manager = m_registry->createServerSideDecorationManager(iface.name, iface.version, this); ​
515 auto decoration = manager->create(m_surface, this); ​
516 connect(decoration, &ServerSideDecoration::modeChanged, this, 687​ connect(decoration, &ServerSideDecoration::modeChanged, this,
517 [this, decoration] { 688​ [this, decoration] {
518 if (decoration->mode() != ServerSideDecoration::Mode::Server) { 689​ if (decoration->mode() != ServerSideDecoration::Mode::Server) {
519 decoration->requestMode(ServerSideDecoration::Mode::Server); 690​ decoration->requestMode(ServerSideDecoration::Mode::Server);
520 } 691​ }
521 } 692​ }
522 ); 693​ );
523 } 694​ }
524 if (m_seat) { 695​
525 m_seat->setInstallCursor(true); 696​ WaylandOutput *waylandOutput = nullptr;
526 } 697​
527 // check for xdg shell ​
528 auto xdgIface = m_registry->interface(Registry::Interface::XdgShellUnstableV6); ​
529 if (xdgIface.name != 0) { ​
530 m_xdgShell = m_registry->createXdgShell(xdgIface.name, xdgIface.version, this); ​
531 if (m_xdgShell && m_xdgShell->isValid()) { 698​ if (m_xdgShell && m_xdgShell->isValid()) {
532 m_xdgShellSurface = m_xdgShell->createSurface(m_surface, this); 699​ waylandOutput = new XdgShellOutput(surface, m_xdgShell, this, i+1);
533 connect(m_xdgShellSurface, &XdgShellSurface::closeRequested, qApp, &QCoreApplication::quit); 700​ } else if (m_shell->isValid()) {
534 setupSurface(m_xdgShellSurface); 701​ waylandOutput = new ShellOutput(surface, m_shell, this);
535 return; ​
536 } ​
537 } ​
538 if (m_shell->isValid()) { ​
539 m_shellSurface = m_shell->createSurface(m_surface, this); ​
540 setupSurface(m_shellSurface); ​
541 m_shellSurface->setToplevel(); ​
542 } ​
543} 702​ }
544 703​
545template <class T> 704​ if (!waylandOutput) {
546void WaylandBackend::setupSurface(T *surface) 705​ qCCritical(KWIN_WAYLAND_BACKEND) << "Binding to all shell interfaces failed for output" << i;
547{ 706​ return;
548 connect(surface, &T::sizeChanged, this, &WaylandBackend::shellSurfaceSizeChanged); ​
549 surface->setSize(initialWindowSize()); ​
550 updateWindowTitle(); ​
551 setReady(true); ​
552 emit screensQueried(); ​
553} 707​ }
554 708​
555QSize WaylandBackend::shellSurfaceSize() const 709​ waylandOutput->setScale(initialOutputScale());
556{ 710​ waylandOutput->setGeometry(QPoint(logicalWidthSum, 0), QSize(pixelWidth, pixelHeight));
557 if (m_shellSurface) { 711​
558 return m_shellSurface->size(); 712​ connect(waylandOutput, &WaylandOutput::sizeChanged, this, [this, waylandOutput](const QSize &size) {
559 } 713​ Q_UNUSED(size)
560 if (m_xdgShellSurface) { 714​ updateScreenSize(waylandOutput);
561 return m_xdgShellSurface->size(); 715​ Compositor::self()->addRepaintFull();
716​ });
717​ connect(waylandOutput, &WaylandOutput::frameRendered, this, &WaylandBackend::checkBufferSwap);
718​
719​ logicalWidthSum += logicalWidth;
720​ m_outputs << waylandOutput;
562 } 721​ }
563 return QSize(); 722​ setReady(true);
723​ emit screensQueried();
564} 724​}
565 725​
566Screens *WaylandBackend::createScreens(QObject *parent) 726​Screens *WaylandBackend::createScreens(QObject *parent)
567{ 727​{
568 return new BasicScreens(this, parent); 728​ return new OutputScreens(this, parent);
569} 729​}
570 730​
571OpenGLBackend *WaylandBackend::createOpenGLBackend() 731​OpenGLBackend *WaylandBackend::createOpenGLBackend()
572{ 732​{
573#if HAVE_WAYLAND_EGL 733​#if HAVE_WAYLAND_EGL
574 return new EglWaylandBackend(this); 734​ return new EglWaylandBackend(this);
575#else 735​#else
576 return nullptr; 736​ return nullptr;
577#endif 737​#endif
578} 738​}
579 739​
580QPainterBackend *WaylandBackend::createQPainterBackend() 740​QPainterBackend *WaylandBackend::createQPainterBackend()
581{ 741​{
582 return new WaylandQPainterBackend(this); 742​ return new WaylandQPainterBackend(this);
583} 743​}
584 744​
745​void WaylandBackend::checkBufferSwap()
746​{
747​ const bool allRendered = std::all_of(m_outputs.begin(), m_outputs.end(), [](WaylandOutput *o) {
748​ return o->rendered();
749​ });
750​ if (!allRendered) {
751​ // need to wait more
752​ // TODO: what if one does not need to be rendered (no damage)?
753​ return;
754​ }
755​
756​ for (auto *output : m_outputs) {
757​ if (!output->rendered()) {
758​ return;
759​ }
760​ }
761​ Compositor::self()->bufferSwapComplete();
762​
763​ for (auto *output : m_outputs) {
764​ output->resetRendered();
765​ }
766​}
767​
585void WaylandBackend::flush() 768​void WaylandBackend::flush()
586{ 769​{
587 if (m_connectionThreadObject) { 770​ if (m_connectionThreadObject) {
588 m_connectionThreadObject->flush(); 771​ m_connectionThreadObject->flush();
589 } 772​ }
590} 773​}
591 774​
592void WaylandBackend::togglePointerConfinement() 775​WaylandOutput* WaylandBackend::getOutputAt(const QPointF globalPosition)
776​{
777​ const auto pos = globalPosition.toPoint();
778​ auto checkPosition = [pos](WaylandOutput *output) {
779​ return output->geometry().contains(pos);
780​ };
781​ auto it = std::find_if(m_outputs.begin(), m_outputs.end(), checkPosition);
782​ return it == m_outputs.end() ? nullptr : *it;
783​}
784​
785​bool WaylandBackend::supportsPointerLock()
786​{
787​ return m_pointerConstraints && m_relativePointerManager;
788​}
789​
790​void WaylandBackend::togglePointerLock()
593{ 791​{
594 if (!m_pointerConstraints) { 792​ if (!m_pointerConstraints) {
595 return; 793​ return;
596 } 794​ }
597 if (!m_seat) { 795​ if (!m_relativePointerManager) {
598 return; 796​ return;
599 } 797​ }
600 auto p = m_seat->pointer(); 798​ if (!m_seat) {
601 if (!p) { ​
602 return; 799​ return;
603 } 800​ }
604 if (!m_surface) { 801​ auto pointer = m_seat->pointer();
802​ if (!pointer) {
605 return; 803​ return;
606 } 804​ }
607 if (m_pointerConfinement && m_isPointerConfined) { 805​ if (m_outputs.isEmpty()) {
608 delete m_pointerConfinement; ​
609 m_pointerConfinement = nullptr; ​
610 m_isPointerConfined = false; ​
611 updateWindowTitle(); ​
612 flush(); ​
613 return; ​
614 } else if (m_pointerConfinement) { ​
615 return; 806​ return;
616 } 807​ }
617 m_pointerConfinement = m_pointerConstraints->confinePointer(m_surface, p, nullptr, PointerConstraints::LifeTime::Persistent, this); 808​
618 connect(m_pointerConfinement, &ConfinedPointer::confined, this, 809​ for (auto output : m_outputs) {
619 [this] { 810​ output->lockPointer(m_seat->pointer(), !m_pointerLockRequested);
620 m_isPointerConfined = true; ​
621 updateWindowTitle(); ​
622 } ​
623 ); ​
624 connect(m_pointerConfinement, &ConfinedPointer::unconfined, this, ​
625 [this] { ​
626 m_isPointerConfined = false; ​
627 updateWindowTitle(); ​
628 } 811​ }
629 ); 812​ m_pointerLockRequested = !m_pointerLockRequested;
630 updateWindowTitle(); ​
631 flush(); 813​ flush();
632} 814​}
633 815​
634void WaylandBackend::updateWindowTitle() 816​bool WaylandBackend::pointerIsLocked()
635{ 817​{
636 if (!m_xdgShellSurface) { 818​ for (auto *output : m_outputs) {
637 return; 819​ if (output->pointerIsLocked()) {
638 } 820​ return true;
639 QString grab; ​
640 if (m_isPointerConfined) { ​
641 grab = i18n("Press right control to ungrab pointer"); ​
642 } else { ​
643 if (!m_pointerConfinement && m_pointerConstraints) { ​
644 grab = i18n("Press right control key to grab pointer"); ​
645 } 821​ }
646 } 822​ }
647 const QString title = i18nc("Title of nested KWin Wayland with Wayland socket identifier as argument", 823​ return false;
648 "KDE Wayland Compositor (%1)", waylandServer()->display()->socketName()); ​
649 if (grab.isEmpty()) { ​
650 m_xdgShellSurface->setTitle(title); ​
651 } else { ​
652 m_xdgShellSurface->setTitle(title + QStringLiteral(" - ") + grab); ​
653 } ​
654} 824​}
655 825​
656QVector<CompositingType> WaylandBackend::supportedCompositors() const 826​QVector<CompositingType> WaylandBackend::supportedCompositors() const
657{ 827​{
658#if HAVE_WAYLAND_EGL 828​#if HAVE_WAYLAND_EGL
659 return QVector<CompositingType>{OpenGLCompositing, QPainterCompositing}; 829​ return QVector<CompositingType>{OpenGLCompositing, QPainterCompositing};
660#else 830​#else
661 return QVector<CompositingType>{QPainterCompositing}; 831​ return QVector<CompositingType>{QPainterCompositing};
662#endif 832​#endif
663} 833​}
664 834​
835​Outputs WaylandBackend::outputs() const
836​{
837​ return m_outputs;
838​}
839​
840​Outputs WaylandBackend::enabledOutputs() const
841​{
842​ // all outputs are enabled
843​ return m_outputs;
844​}
665 845​
666} 846​}
667 847​
668} // KWin 848​} // KWin