qwaylandcompositor.cpp

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// Copyright (C) 2017 Pier Luigi Fiorini <pierluigi.fiorini@gmail.com>
// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
#include "qtwaylandcompositorglobal_p.h"
#include "qwaylandcompositor.h"
#include "qwaylandcompositor_p.h"
 
#include <QtWaylandCompositor/qwaylandclient.h>
#include <QtWaylandCompositor/qwaylandseat.h>
#include <QtWaylandCompositor/qwaylandoutput.h>
#include <QtWaylandCompositor/qwaylandview.h>
#include <QtWaylandCompositor/qwaylandclient.h>
#include <QtWaylandCompositor/qwaylandkeyboard.h>
#include <QtWaylandCompositor/qwaylandpointer.h>
#include <QtWaylandCompositor/qwaylandtouch.h>
#include <QtWaylandCompositor/qwaylandsurfacegrabber.h>
 
#include <QtWaylandCompositor/private/qwaylandkeyboard_p.h>
#include <QtWaylandCompositor/private/qwaylandsurface_p.h>
 
#if QT_CONFIG(wayland_datadevice)
#include "wayland_wrapper/qwldatadevice_p.h"
#include "wayland_wrapper/qwldatadevicemanager_p.h"
#endif
#include "wayland_wrapper/qwlbuffermanager_p.h"
 
#include "hardware_integration/qwlclientbufferintegration_p.h"
#include "hardware_integration/qwlclientbufferintegrationfactory_p.h"
#include "hardware_integration/qwlserverbufferintegration_p.h"
#include "hardware_integration/qwlserverbufferintegrationfactory_p.h"
 
#if QT_CONFIG(opengl)
#include "hardware_integration/qwlhwintegration_p.h"
#endif
 
#include "extensions/qwaylandqtwindowmanager.h"
 
#include "qwaylandsharedmemoryformathelper_p.h"
 
#include <QtCore/QCoreApplication>
#include <QtCore/QStringList>
#include <QtCore/QSocketNotifier>
#include <QStandardPaths>
 
#include <QtGui/QDesktopServices>
#include <QtGui/QScreen>
 
#include <QtGui/qpa/qwindowsysteminterface_p.h>
#include <QtGui/qpa/qplatformnativeinterface.h>
#include <QtGui/private/qguiapplication_p.h>
 
#if QT_CONFIG(opengl)
#   include <QOpenGLTextureBlitter>
#   include <QOpenGLTexture>
#   include <QOpenGLContext>
#   include <QOpenGLFramebufferObject>
#   include <QMatrix4x4>
#endif
 
QT_BEGIN_NAMESPACE
 
Q_LOGGING_CATEGORY(qLcWaylandCompositor, "qt.waylandcompositor")
Q_LOGGING_CATEGORY(qLcWaylandCompositorHardwareIntegration, "qt.waylandcompositor.hardwareintegration")
Q_LOGGING_CATEGORY(qLcWaylandCompositorInputMethods, "qt.waylandcompositor.inputmethods")
Q_LOGGING_CATEGORY(qLcWaylandCompositorTextInput, "qt.waylandcompositor.textinput")
 
namespace QtWayland {
 
class WindowSystemEventHandler : public QWindowSystemEventHandler
{
public:
    WindowSystemEventHandler(QWaylandCompositor *c) : compositor(c) {}
    bool sendEvent(QWindowSystemInterfacePrivate::WindowSystemEvent *e) override
    {
        if (e->type == QWindowSystemInterfacePrivate::Key) {
            QWindowSystemInterfacePrivate::KeyEvent *keyEvent = static_cast<QWindowSystemInterfacePrivate::KeyEvent *>(e);
            handleKeyEvent(keyEvent);
        } else {
            QWindowSystemEventHandler::sendEvent(e);
        }
        return true;
    }
 
    void handleKeyEvent(QWindowSystemInterfacePrivate::KeyEvent *ke)
    {
        auto *seat = compositor->defaultSeat();
        if (!seat)
            return;
 
        QWaylandKeyboardPrivate *keyb = QWaylandKeyboardPrivate::get(seat->keyboard());
 
#if defined(Q_OS_QNX)
        // The QNX platform plugin delivers scan codes that haven't been adjusted to be
        // xkbcommon compatible. xkbcommon requires that the scan codes be bumped up by
        // 8 because that's how evdev/XKB deliver scan codes. You might think that it
        // would've been better to remove this (odd) requirement from xkbcommon on QNX
        // but it turns out that conforming to it has much less impact.
        static int offset = QGuiApplication::platformName() == QStringLiteral("qnx") ? 8 : 0;
        ke->nativeScanCode += offset;
#endif
        uint32_t code = ke->nativeScanCode;
        if (code == 0)
            code = seat->keyboard()->keyToScanCode(ke->key);
        bool isDown = ke->keyType == QEvent::KeyPress;
 
#if QT_CONFIG(xkbcommon)
        xkb_state *xkbState = keyb->xkbState();
 
        const xkb_keysym_t sym = xkb_state_key_get_one_sym(xkbState, code);
        Qt::KeyboardModifiers modifiers = QXkbCommon::modifiers(xkbState, sym);
        int qtkey = QXkbCommon::keysymToQtKey(sym, modifiers, xkbState, code);
        QString text = QXkbCommon::lookupString(xkbState, code);
 
        ke->key = qtkey;
        ke->modifiers = modifiers;
        ke->nativeVirtualKey = sym;
        ke->nativeModifiers = keyb->xkbModsMask();
        ke->unicode = text;
#endif
        if (!ke->repeat)
            keyb->keyEvent(code, isDown ? WL_KEYBOARD_KEY_STATE_PRESSED : WL_KEYBOARD_KEY_STATE_RELEASED);
 
        QWindowSystemEventHandler::sendEvent(ke);
 
        if (!ke->repeat) {
            keyb->maybeUpdateKeymap();
            keyb->updateModifierState(code, isDown ? WL_KEYBOARD_KEY_STATE_PRESSED : WL_KEYBOARD_KEY_STATE_RELEASED);
        }
    }
 
    QWaylandCompositor *compositor = nullptr;
};
 
} // namespace
 
QWaylandCompositorPrivate::QWaylandCompositorPrivate(QWaylandCompositor *compositor)
{
    // Create XDG_RUNTIME_DIR, if it does not already exist
    QStandardPaths::writableLocation(QStandardPaths::RuntimeLocation);
 
    if (QGuiApplication::platformNativeInterface())
        display = static_cast<wl_display*>(QGuiApplication::platformNativeInterface()->nativeResourceForIntegration("server_wl_display"));
 
    if (!display) {
        display = wl_display_create();
        ownsDisplay = true;
    }
 
    eventHandler.reset(new QtWayland::WindowSystemEventHandler(compositor));
    timer.start();
 
    QWindowSystemInterfacePrivate::installWindowSystemEventHandler(eventHandler.data());
 
#if QT_CONFIG(xkbcommon)
    mXkbContext.reset(xkb_context_new(XKB_CONTEXT_NO_FLAGS));
    if (!mXkbContext) {
        qWarning("Failed to create a XKB context: keymap will not be supported");
        return;
    }
#endif
}
 
void QWaylandCompositorPrivate::init()
{
    Q_Q(QWaylandCompositor);
    QStringList arguments = QCoreApplication::instance()->arguments();
 
    if (socket_name.isEmpty()) {
        const int socketArg = arguments.indexOf(QLatin1String("--wayland-socket-name"));
        if (socketArg != -1 && socketArg + 1 < arguments.size())
            socket_name = arguments.at(socketArg + 1).toLocal8Bit();
        if (socket_name.isEmpty())
            socket_name = qgetenv("WAYLAND_DISPLAY");
    }
    wl_compositor::init(display, 4);
    wl_subcompositor::init(display, 1);
 
#if QT_CONFIG(wayland_datadevice)
    data_device_manager =  new QtWayland::DataDeviceManager(q);
#endif
    buffer_manager = new QtWayland::BufferManager(q);
 
    wl_display_init_shm(display);
 
    for (QWaylandCompositor::ShmFormat format : shmFormats)
        wl_display_add_shm_format(display, wl_shm_format(format));
 
    if (!socket_name.isEmpty()) {
        if (wl_display_add_socket(display, socket_name.constData()))
            qFatal("Fatal: Failed to open server socket: \"%s\". XDG_RUNTIME_DIR is: \"%s\"\n", socket_name.constData(), getenv("XDG_RUNTIME_DIR"));
    } else {
        const char *autoSocketName = wl_display_add_socket_auto(display);
        if (!autoSocketName)
            qFatal("Fatal: Failed to open default server socket. XDG_RUNTIME_DIR is: \"%s\"\n", getenv("XDG_RUNTIME_DIR"));
        socket_name = autoSocketName;
        emit q->socketNameChanged(socket_name);
    }
 
    connectToExternalSockets();
 
    loop = wl_display_get_event_loop(display);
 
    int fd = wl_event_loop_get_fd(loop);
 
    QSocketNotifier *sockNot = new QSocketNotifier(fd, QSocketNotifier::Read, q);
    QObject::connect(sockNot, SIGNAL(activated(QSocketDescriptor)), q, SLOT(processWaylandEvents()));
 
    QAbstractEventDispatcher *dispatcher = QGuiApplicationPrivate::eventDispatcher;
    QObject::connect(dispatcher, SIGNAL(aboutToBlock()), q, SLOT(processWaylandEvents()));
 
    QObject::connect(static_cast<QGuiApplication *>(QGuiApplication::instance()),
                     &QGuiApplication::applicationStateChanged,
                     q,
                     &QWaylandCompositor::applicationStateChanged);
 
    initializeHardwareIntegration();
    initializeSeats();
 
    initialized = true;
 
    for (const QPointer<QObject> &object : std::exchange(polish_objects, {})) {
        if (object) {
            QEvent polishEvent(QEvent::Polish);
            QCoreApplication::sendEvent(object.data(), &polishEvent);
        }
    }
 
    emit q->createdChanged();
}
 
QWaylandCompositorPrivate::~QWaylandCompositorPrivate()
{
    // Take copies, since the lists will get modified as elements are deleted
    const auto clientsToDelete = clients;
    qDeleteAll(clientsToDelete);
 
    const auto outputsToDelete = outputs;
    qDeleteAll(outputsToDelete);
 
#if QT_CONFIG(wayland_datadevice)
    delete data_device_manager;
#endif
 
    // Some client buffer integrations need to clean up before the destroying the wl_display
    qDeleteAll(client_buffer_integrations);
 
    if (ownsDisplay)
        wl_display_destroy(display);
}
 
void QWaylandCompositorPrivate::preInit()
{
    Q_Q(QWaylandCompositor);
 
    if (preInitialized)
        return;
 
    if (seats.empty())
        seats.append(q->createSeat());
 
    preInitialized = true;
}
 
void QWaylandCompositorPrivate::destroySurface(QWaylandSurface *surface)
{
    Q_Q(QWaylandCompositor);
    q->surfaceAboutToBeDestroyed(surface);
 
    delete surface;
}
 
void QWaylandCompositorPrivate::unregisterSurface(QWaylandSurface *surface)
{
    if (!all_surfaces.removeOne(surface))
        qWarning("%s Unexpected state. Cant find registered surface\n", Q_FUNC_INFO);
}
 
void QWaylandCompositorPrivate::feedRetainedSelectionData(QMimeData *data)
{
    Q_Q(QWaylandCompositor);
    if (retainSelection)
        q->retainedSelectionReceived(data);
}
 
void QWaylandCompositorPrivate::addPolishObject(QObject *object)
{
    if (initialized) {
        QCoreApplication::postEvent(object, new QEvent(QEvent::Polish));
    } else {
        polish_objects.push_back(object);
    }
}
 
void QWaylandCompositorPrivate::connectToExternalSockets()
{
    // Clear out any backlog of user-supplied external socket descriptors
    for (int fd : std::as_const(externally_added_socket_fds)) {
        if (wl_display_add_socket_fd(display, fd) != 0)
            qWarning() << "Failed to integrate user-supplied socket fd into the Wayland event loop";
    }
    externally_added_socket_fds.clear();
}
 
void QWaylandCompositorPrivate::compositor_create_surface(wl_compositor::Resource *resource, uint32_t id)
{
    Q_Q(QWaylandCompositor);
    QWaylandClient *client = QWaylandClient::fromWlClient(q, resource->client());
    emit q->surfaceRequested(client, id, resource->version());
#ifndef QT_NO_DEBUG
    Q_ASSERT_X(!QWaylandSurfacePrivate::hasUninitializedSurface(), "QWaylandCompositor", QStringLiteral("Found uninitialized QWaylandSurface after emitting QWaylandCompositor::createSurface for id %1. All surfaces has to be initialized immediately after creation. See QWaylandSurface::initialize.").arg(id).toLocal8Bit().constData());
#endif
    struct wl_resource *surfResource = wl_client_get_object(client->client(), id);
 
    QWaylandSurface *surface = nullptr;
    if (surfResource) {
        surface = QWaylandSurface::fromResource(surfResource);
    } else {
        surface = createDefaultSurface();
        surface->initialize(q, client, id, resource->version());
    }
    Q_ASSERT(surface);
    all_surfaces.append(surface);
    emit q->surfaceCreated(surface);
}
 
void QWaylandCompositorPrivate::compositor_create_region(wl_compositor::Resource *resource, uint32_t id)
{
    new QtWayland::Region(resource->client(), id);
}
 
void QWaylandCompositorPrivate::subcompositor_get_subsurface(wl_subcompositor::Resource *resource, uint32_t id, wl_resource *surface, wl_resource *parent)
{
    Q_Q(QWaylandCompositor);
    QWaylandSurface *childSurface = QWaylandSurface::fromResource(surface);
    QWaylandSurface *parentSurface = QWaylandSurface::fromResource(parent);
    QWaylandSurfacePrivate::get(childSurface)->initSubsurface(parentSurface, resource->client(), id, 1);
    QWaylandSurfacePrivate::get(parentSurface)->subsurfaceChildren.append(childSurface);
    emit q->subsurfaceChanged(childSurface, parentSurface);
}
 
QWaylandSurface *QWaylandCompositorPrivate::createDefaultSurface()
{
    return new QWaylandSurface();
}
 
class SharedMemoryClientBufferIntegration : public QtWayland::ClientBufferIntegration
{
public:
    void initializeHardware(wl_display *display) override;
    QtWayland::ClientBuffer *createBufferFor(wl_resource *buffer) override;
};
 
void SharedMemoryClientBufferIntegration::initializeHardware(wl_display *)
{
}
 
QtWayland::ClientBuffer *SharedMemoryClientBufferIntegration::createBufferFor(wl_resource *buffer)
{
    if (wl_shm_buffer_get(buffer))
        return new QtWayland::SharedMemoryBuffer(buffer);
    return nullptr;
}
 
void QWaylandCompositorPrivate::initializeHardwareIntegration()
{
    client_buffer_integrations.prepend(new SharedMemoryClientBufferIntegration); // TODO: clean up the opengl dependency
 
#if QT_CONFIG(opengl)
    Q_Q(QWaylandCompositor);
    if (use_hw_integration_extension)
        hw_integration.reset(new QtWayland::HardwareIntegration(q));
 
    loadClientBufferIntegration();
    loadServerBufferIntegration();
 
    for (auto *integration : std::as_const(client_buffer_integrations))
        integration->initializeHardware(display);
#endif
}
 
void QWaylandCompositorPrivate::initializeSeats()
{
    for (QWaylandSeat *seat : std::as_const(seats))
        seat->initialize();
}
 
void QWaylandCompositorPrivate::loadClientBufferIntegration()
{
#if QT_CONFIG(opengl)
    Q_Q(QWaylandCompositor);
    QStringList keys = QtWayland::ClientBufferIntegrationFactory::keys();
    QStringList targetKeys;
    QByteArray clientBufferIntegration = qgetenv("QT_WAYLAND_HARDWARE_INTEGRATION");
    if (clientBufferIntegration.isEmpty())
        clientBufferIntegration = qgetenv("QT_WAYLAND_CLIENT_BUFFER_INTEGRATION");
 
    for (auto b : clientBufferIntegration.split(';')) {
        QString s = QString::fromLocal8Bit(b);
        if (keys.contains(s))
            targetKeys.append(s);
    }
 
    if (targetKeys.isEmpty()) {
        if (keys.contains(QString::fromLatin1("wayland-egl"))) {
            targetKeys.append(QString::fromLatin1("wayland-egl"));
        } else if (!keys.isEmpty()) {
            targetKeys.append(keys.first());
        }
    }
 
    QString hwIntegrationName;
 
    for (auto targetKey : std::as_const(targetKeys)) {
        auto *integration = QtWayland::ClientBufferIntegrationFactory::create(targetKey, QStringList());
        if (integration) {
            integration->setCompositor(q);
            client_buffer_integrations.append(integration);
            if (hwIntegrationName.isEmpty())
                hwIntegrationName = targetKey;
        }
    }
 
    if (hw_integration && !hwIntegrationName.isEmpty())
        hw_integration->setClientBufferIntegrationName(hwIntegrationName);
 
#endif
}
 
void QWaylandCompositorPrivate::loadServerBufferIntegration()
{
#if QT_CONFIG(opengl)
    Q_Q(QWaylandCompositor);
    QStringList keys = QtWayland::ServerBufferIntegrationFactory::keys();
    QString targetKey;
    QByteArray serverBufferIntegration = qgetenv("QT_WAYLAND_SERVER_BUFFER_INTEGRATION");
    if (keys.contains(QString::fromLocal8Bit(serverBufferIntegration.constData()))) {
        targetKey = QString::fromLocal8Bit(serverBufferIntegration.constData());
    }
    if (!targetKey.isEmpty()) {
        server_buffer_integration.reset(QtWayland::ServerBufferIntegrationFactory::create(targetKey, QStringList()));
        if (server_buffer_integration) {
            qCDebug(qLcWaylandCompositorHardwareIntegration)
                    << "Loaded server buffer integration:" << targetKey;
            if (!server_buffer_integration->initializeHardware(q)) {
                qCWarning(qLcWaylandCompositorHardwareIntegration)
                        << "Failed to initialize hardware for server buffer integration:" << targetKey;
                server_buffer_integration.reset();
            }
        } else {
            qCWarning(qLcWaylandCompositorHardwareIntegration)
                    << "Failed to load server buffer integration:" << targetKey;
        }
    }
 
    if (server_buffer_integration && hw_integration)
        hw_integration->setServerBufferIntegrationName(targetKey);
#endif
}
 
QWaylandSeat *QWaylandCompositorPrivate::seatFor(QInputEvent *inputEvent)
{
    QWaylandSeat *dev = nullptr;
    for (int i = 0; i < seats.size(); i++) {
        QWaylandSeat *candidate = seats.at(i);
        if (candidate->isOwner(inputEvent)) {
            dev = candidate;
            break;
        }
    }
    return dev;
}
 
QWaylandCompositor::QWaylandCompositor(QObject *parent)
    : QWaylandObject(*new QWaylandCompositorPrivate(this), parent)
{
}
 
QWaylandCompositor::QWaylandCompositor(QWaylandCompositorPrivate &dptr, QObject *parent)
    : QWaylandObject(dptr, parent)
{
}
 
QWaylandCompositor::~QWaylandCompositor()
{
}
 
void QWaylandCompositor::create()
{
    Q_D(QWaylandCompositor);
    d->preInit();
    d->init();
}
 
bool QWaylandCompositor::isCreated() const
{
    Q_D(const QWaylandCompositor);
    return d->initialized;
}
 
void QWaylandCompositor::setSocketName(const QByteArray &name)
{
    Q_D(QWaylandCompositor);
 
    if (d->socket_name == name)
        return;
 
    if (d->initialized) {
        qWarning("%s: Changing socket name after initializing the compositor is not supported.\n", Q_FUNC_INFO);
        return;
    }
 
    d->socket_name = name;
    emit socketNameChanged(name);
}
 
QByteArray QWaylandCompositor::socketName() const
{
    Q_D(const QWaylandCompositor);
    return d->socket_name;
}
 
void QWaylandCompositor::addSocketDescriptor(int fd)
{
    Q_D(QWaylandCompositor);
    d->externally_added_socket_fds.append(fd);
    if (isCreated())
        d->connectToExternalSockets();
}
 
struct wl_display *QWaylandCompositor::display() const
{
    Q_D(const QWaylandCompositor);
    return d->display;
}
 
uint32_t QWaylandCompositor::nextSerial()
{
    Q_D(QWaylandCompositor);
    return wl_display_next_serial(d->display);
}
 
QList<QWaylandClient *>QWaylandCompositor::clients() const
{
    Q_D(const QWaylandCompositor);
    return d->clients;
}
 
void QWaylandCompositor::destroyClientForSurface(QWaylandSurface *surface)
{
    destroyClient(surface->client());
}
 
void QWaylandCompositor::destroyClient(QWaylandClient *client)
{
    if (!client)
        return;
 
    QWaylandQtWindowManager *wmExtension = QWaylandQtWindowManager::findIn(this);
    if (wmExtension)
        wmExtension->sendQuitMessage(client);
 
    wl_client_destroy(client->client());
}
 
QList<QWaylandSurface *> QWaylandCompositor::surfacesForClient(QWaylandClient* client) const
{
    Q_D(const QWaylandCompositor);
    QList<QWaylandSurface *> surfs;
    for (QWaylandSurface *surface : d->all_surfaces) {
        if (surface->client() == client)
            surfs.append(surface);
    }
    return surfs;
}
 
QList<QWaylandSurface *> QWaylandCompositor::surfaces() const
{
    Q_D(const QWaylandCompositor);
    return d->all_surfaces;
}
 
QWaylandOutput *QWaylandCompositor::outputFor(QWindow *window) const
{
    Q_D(const QWaylandCompositor);
    for (QWaylandOutput *output : d->outputs) {
        if (output->window() == window)
            return output;
    }
 
    return nullptr;
}
 
QWaylandOutput *QWaylandCompositor::defaultOutput() const
{
    Q_D(const QWaylandCompositor);
    return d->defaultOutput();
}
 
void QWaylandCompositor::setDefaultOutput(QWaylandOutput *output)
{
    Q_D(QWaylandCompositor);
    if (d->outputs.size() && d->outputs.first() == output)
        return;
    bool alreadyAdded = d->outputs.removeOne(output);
    d->outputs.prepend(output);
    emit defaultOutputChanged();
    if (!alreadyAdded)
        emit outputAdded(output);
}
 
QList<QWaylandOutput *> QWaylandCompositor::outputs() const
{
    Q_D(const QWaylandCompositor);
    return d->outputs;
}
 
uint QWaylandCompositor::currentTimeMsecs() const
{
    Q_D(const QWaylandCompositor);
    return d->timer.elapsed();
}
 
void QWaylandCompositor::processWaylandEvents()
{
    Q_D(QWaylandCompositor);
    int ret = wl_event_loop_dispatch(d->loop, 0);
    if (ret)
        fprintf(stderr, "wl_event_loop_dispatch error: %d\n", ret);
    wl_display_flush_clients(d->display);
}
 
QWaylandSeat *QWaylandCompositor::createSeat()
{
    return new QWaylandSeat(this);
}
 
QWaylandPointer *QWaylandCompositor::createPointerDevice(QWaylandSeat *seat)
{
    return new QWaylandPointer(seat);
}
 
QWaylandKeyboard *QWaylandCompositor::createKeyboardDevice(QWaylandSeat *seat)
{
    return new QWaylandKeyboard(seat);
}
 
QWaylandTouch *QWaylandCompositor::createTouchDevice(QWaylandSeat *seat)
{
    return new QWaylandTouch(seat);
}
 
void QWaylandCompositor::setRetainedSelectionEnabled(bool enabled)
{
    Q_D(QWaylandCompositor);
 
    if (d->retainSelection == enabled)
        return;
 
    d->retainSelection = enabled;
    emit retainedSelectionChanged(enabled);
}
 
bool QWaylandCompositor::retainedSelectionEnabled() const
{
    Q_D(const QWaylandCompositor);
    return d->retainSelection;
}
 
void QWaylandCompositor::retainedSelectionReceived(QMimeData *)
{
}
 
void QWaylandCompositor::overrideSelection(const QMimeData *data)
{
    Q_D(QWaylandCompositor);
#if QT_CONFIG(wayland_datadevice)
    d->data_device_manager->overrideSelection(*data);
#endif
}
 
QWaylandSeat *QWaylandCompositor::defaultSeat() const
{
    Q_D(const QWaylandCompositor);
    if (d->seats.size())
        return d->seats.first();
    return nullptr;
}
 
QWaylandSeat *QWaylandCompositor::seatFor(QInputEvent *inputEvent)
{
    Q_D(QWaylandCompositor);
    return d->seatFor(inputEvent);
}
 
bool QWaylandCompositor::useHardwareIntegrationExtension() const
{
#if QT_CONFIG(opengl)
    Q_D(const QWaylandCompositor);
    return d->use_hw_integration_extension;
#else
    return false;
#endif
}
 
void QWaylandCompositor::setUseHardwareIntegrationExtension(bool use)
{
#if QT_CONFIG(opengl)
    Q_D(QWaylandCompositor);
    if (use == d->use_hw_integration_extension)
        return;
 
    if (d->initialized)
        qWarning("Setting QWaylandCompositor::useHardwareIntegrationExtension after initialization has no effect");
 
    d->use_hw_integration_extension = use;
    useHardwareIntegrationExtensionChanged();
#else
    if (use)
        qWarning() << "Hardware integration not supported without OpenGL support";
#endif
}
 
void QWaylandCompositor::grabSurface(QWaylandSurfaceGrabber *grabber, const QWaylandBufferRef &buffer)
{
    if (buffer.isSharedMemory()) {
        emit grabber->success(buffer.image());
    } else {
#if QT_CONFIG(opengl)
        if (QOpenGLContext::currentContext()) {
            QOpenGLFramebufferObject fbo(buffer.size());
            fbo.bind();
            QOpenGLTextureBlitter blitter;
            blitter.create();
 
 
            glViewport(0, 0, buffer.size().width(), buffer.size().height());
 
            QOpenGLTextureBlitter::Origin surfaceOrigin =
                buffer.origin() == QWaylandSurface::OriginTopLeft
                ? QOpenGLTextureBlitter::OriginTopLeft
                : QOpenGLTextureBlitter::OriginBottomLeft;
 
            auto texture = buffer.toOpenGLTexture();
            blitter.bind(texture->target());
            blitter.blit(texture->textureId(), QMatrix4x4(), surfaceOrigin);
            blitter.release();
 
            emit grabber->success(fbo.toImage());
        } else
#endif
        emit grabber->failed(QWaylandSurfaceGrabber::UnknownBufferType);
    }
}
 
void QWaylandCompositor::setAdditionalShmFormats(const QVector<ShmFormat> &additionalShmFormats)
{
    Q_D(QWaylandCompositor);
    if (d->initialized)
        qCWarning(qLcWaylandCompositorHardwareIntegration) << "Setting QWaylandCompositor::additionalShmFormats after initialization has no effect";
 
    d->shmFormats = additionalShmFormats;
    emit additionalShmFormatsChanged();
}
 
QVector<QWaylandCompositor::ShmFormat> QWaylandCompositor::additionalShmFormats() const
{
    Q_D(const QWaylandCompositor);
    return d->shmFormats;
}
 
void QWaylandCompositor::applicationStateChanged(Qt::ApplicationState state)
{
#if QT_CONFIG(xkbcommon)
    if (state == Qt::ApplicationInactive) {
        auto *seat = defaultSeat();
        if (seat != nullptr) {
            QWaylandKeyboardPrivate *keyb = QWaylandKeyboardPrivate::get(seat->keyboard());
            keyb->resetKeyboardState();
        }
    }
#else
    Q_UNUSED(state);
#endif
}
 
QT_END_NAMESPACE
 
#include "moc_qwaylandcompositor.cpp"