File indexing completed on 2024-11-10 04:58:09

 /*
     SPDX-FileCopyrightText: 2016 Martin Gräßlin <mgraesslin@kde.org>
 
     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
 */
 #include "KWayland/Client/compositor.h"
 #include "KWayland/Client/connection_thread.h"
 #include "KWayland/Client/datadevice.h"
 #include "KWayland/Client/datadevicemanager.h"
 #include "KWayland/Client/dataoffer.h"
 #include "KWayland/Client/event_queue.h"
 #include "KWayland/Client/keyboard.h"
 #include "KWayland/Client/registry.h"
 #include "KWayland/Client/seat.h"
 #include "KWayland/Client/shell.h"
 #include "KWayland/Client/shm_pool.h"
 #include "KWayland/Client/subcompositor.h"
 #include "KWayland/Client/surface.h"
 // Qt
 #include <QDebug>
 #include <QFile>
 #include <QGuiApplication>
 #include <QImage>
 #include <QMimeType>
 #include <QThread>
 #include <QTimer>
 // system
 #include <unistd.h>
 
 #include <linux/input.h>
 
 using namespace KWayland::Client;
 
 class SubSurfaceTest : public QObject
 {
     Q_OBJECT
 public:
     explicit SubSurfaceTest(QObject *parent = nullptr);
     virtual ~SubSurfaceTest();
 
     void init();
 
 private:
     void setupRegistry(Registry *registry);
     void render();
     QThread *m_connectionThread;
     ConnectionThread *m_connectionThreadObject;
     EventQueue *m_eventQueue = nullptr;
     Compositor *m_compositor = nullptr;
     Seat *m_seat = nullptr;
     Shell *m_shell = nullptr;
     ShellSurface *m_shellSurface = nullptr;
     ShmPool *m_shm = nullptr;
     Surface *m_surface = nullptr;
     SubCompositor *m_subCompositor = nullptr;
 };
 
 SubSurfaceTest::SubSurfaceTest(QObject *parent)
     : QObject(parent)
     , m_connectionThread(new QThread(this))
     , m_connectionThreadObject(new ConnectionThread())
 {
 }
 
 SubSurfaceTest::~SubSurfaceTest()
 {
     m_connectionThread->quit();
     m_connectionThread->wait();
     m_connectionThreadObject->deleteLater();
 }
 
 void SubSurfaceTest::init()
 {
     connect(
         m_connectionThreadObject,
         &ConnectionThread::connected,
         this,
         [this] {
             m_eventQueue = new EventQueue(this);
             m_eventQueue->setup(m_connectionThreadObject);
 
             Registry *registry = new Registry(this);
             setupRegistry(registry);
         },
         Qt::QueuedConnection);
     m_connectionThreadObject->moveToThread(m_connectionThread);
     m_connectionThread->start();
 
     m_connectionThreadObject->initConnection();
 }
 
 void SubSurfaceTest::setupRegistry(Registry *registry)
 {
     connect(registry, &Registry::compositorAnnounced, this, [this, registry](quint32 name, quint32 version) {
         m_compositor = registry->createCompositor(name, version, this);
     });
     connect(registry, &Registry::shellAnnounced, this, [this, registry](quint32 name, quint32 version) {
         m_shell = registry->createShell(name, version, this);
     });
     connect(registry, &Registry::shmAnnounced, this, [this, registry](quint32 name, quint32 version) {
         m_shm = registry->createShmPool(name, version, this);
     });
     connect(registry, &Registry::seatAnnounced, this, [this, registry](quint32 name, quint32 version) {
         m_seat = registry->createSeat(name, version, this);
     });
     connect(registry, &Registry::interfacesAnnounced, this, [this, registry] {
         Q_ASSERT(m_compositor);
         Q_ASSERT(m_seat);
         Q_ASSERT(m_shell);
         Q_ASSERT(m_shm);
         m_surface = m_compositor->createSurface(this);
         Q_ASSERT(m_surface);
         m_shellSurface = m_shell->createSurface(m_surface, this);
         Q_ASSERT(m_shellSurface);
         m_shellSurface->setToplevel();
         connect(m_shellSurface, &ShellSurface::sizeChanged, this, &SubSurfaceTest::render);
 
         auto subInterface = registry->interface(Registry::Interface::SubCompositor);
         if (subInterface.name != 0) {
             m_subCompositor = registry->createSubCompositor(subInterface.name, subInterface.version, this);
             Q_ASSERT(m_subCompositor);
             // create the sub surface
             auto surface = m_compositor->createSurface(this);
             Q_ASSERT(surface);
             auto subsurface = m_subCompositor->createSubSurface(surface, m_surface, this);
             Q_ASSERT(subsurface);
             QImage image(QSize(100, 100), QImage::Format_ARGB32_Premultiplied);
             image.fill(Qt::red);
             surface->attachBuffer(m_shm->createBuffer(image));
             surface->damage(QRect(0, 0, 100, 100));
             surface->commit(Surface::CommitFlag::None);
             // and another sub-surface to the sub-surface
             auto surface2 = m_compositor->createSurface(this);
             Q_ASSERT(surface2);
             auto subsurface2 = m_subCompositor->createSubSurface(surface2, surface, this);
             Q_ASSERT(subsurface2);
             QImage green(QSize(50, 50), QImage::Format_ARGB32_Premultiplied);
             green.fill(Qt::green);
             surface2->attachBuffer(m_shm->createBuffer(green));
             surface2->damage(QRect(0, 0, 50, 50));
             surface2->commit(Surface::CommitFlag::None);
             QTimer *timer = new QTimer(this);
             connect(timer, &QTimer::timeout, surface2, [surface2, this] {
                 QImage yellow(QSize(50, 50), QImage::Format_ARGB32_Premultiplied);
                 yellow.fill(Qt::yellow);
                 surface2->attachBuffer(m_shm->createBuffer(yellow));
                 surface2->damage(QRect(0, 0, 50, 50));
                 surface2->commit(Surface::CommitFlag::None);
                 m_surface->commit(Surface::CommitFlag::None);
             });
             timer->setSingleShot(true);
             timer->start(5000);
         }
         render();
     });
     registry->setEventQueue(m_eventQueue);
     registry->create(m_connectionThreadObject);
     registry->setup();
 }
 
 void SubSurfaceTest::render()
 {
     const QSize &size = m_shellSurface->size().isValid() ? m_shellSurface->size() : QSize(200, 200);
     auto buffer = m_shm->getBuffer(size, size.width() * 4).toStrongRef();
     buffer->setUsed(true);
     QImage image(buffer->address(), size.width(), size.height(), QImage::Format_ARGB32_Premultiplied);
     image.fill(Qt::blue);
 
     m_surface->attachBuffer(*buffer);
     m_surface->damage(QRect(QPoint(0, 0), size));
     m_surface->commit(Surface::CommitFlag::None);
     buffer->setUsed(false);
 }
 
 int main(int argc, char **argv)
 {
     QCoreApplication app(argc, argv);
     SubSurfaceTest client;
     client.init();
 
     return app.exec();
 }
 
 #include "subsurfacetest.moc"