[tests] Add a shadow test application

src/wayland/tests/CMakeLists.txt

@@ -38,6 +38,10 @@ add_executable(panelTest paneltest.cpp)
 target_link_libraries(panelTest KF5::WaylandClient)
 ecm_mark_as_test(panelTest)
 
+add_executable(shadowTest shadowtest.cpp)
+target_link_libraries(shadowTest KF5::WaylandClient)
+ecm_mark_as_test(shadowTest)
+
 add_executable(qtwayland-integration-test qtwaylandintegrationtest.cpp)
 target_link_libraries(qtwayland-integration-test Qt5::Core Qt5::Gui KF5::WaylandClient)
 ecm_mark_as_test(qtwayland-integration-test)

src/wayland/tests/shadowtest.cpp

@@ -0,0 +1,183 @@
+/********************************************************************
+Copyright 2015  Martin Gräßlin <mgraesslin@kde.org>
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) version 3, or any
+later version accepted by the membership of KDE e.V. (or its
+successor approved by the membership of KDE e.V.), which shall
+act as a proxy defined in Section 6 of version 3 of the license.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+*********************************************************************/
+#include "../src/client/compositor.h"
+#include "../src/client/connection_thread.h"
+#include "../src/client/event_queue.h"
+#include "../src/client/registry.h"
+#include "../src/client/shadow.h"
+#include "../src/client/shell.h"
+#include "../src/client/shm_pool.h"
+#include "../src/client/surface.h"
+// Qt
+#include <QGuiApplication>
+#include <QImage>
+#include <QThread>
+
+using namespace KWayland::Client;
+
+class ShadowTest : public QObject
+{
+    Q_OBJECT
+public:
+    explicit ShadowTest(QObject *parent = nullptr);
+    virtual ~ShadowTest();
+
+    void init();
+
+private:
+    void setupRegistry(Registry *registry);
+    void setupShadow();
+    void render();
+    QThread *m_connectionThread;
+    ConnectionThread *m_connectionThreadObject;
+    EventQueue *m_eventQueue = nullptr;
+    Compositor *m_compositor = nullptr;
+    Shell *m_shell = nullptr;
+    ShellSurface *m_shellSurface = nullptr;
+    ShmPool *m_shm = nullptr;
+    Surface *m_surface = nullptr;
+    ShadowManager *m_shadowManager = nullptr;
+};
+
+ShadowTest::ShadowTest(QObject *parent)
+    : QObject(parent)
+    , m_connectionThread(new QThread(this))
+    , m_connectionThreadObject(new ConnectionThread())
+{
+}
+
+ShadowTest::~ShadowTest()
+{
+    m_connectionThread->quit();
+    m_connectionThread->wait();
+    m_connectionThreadObject->deleteLater();
+}
+
+void ShadowTest::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 ShadowTest::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::shadowAnnounced, this,
+        [this, registry](quint32 name, quint32 version) {
+            m_shadowManager = registry->createShadowManager(name, version, this);
+            m_shadowManager->setEventQueue(m_eventQueue);
+        }
+    );
+    connect(registry, &Registry::interfacesAnnounced, this,
+        [this] {
+            Q_ASSERT(m_compositor);
+            Q_ASSERT(m_shell);
+            Q_ASSERT(m_shm);
+            m_surface = m_compositor->createSurface(this);
+            Q_ASSERT(m_surface);
+            setupShadow();
+            m_shellSurface = m_shell->createSurface(m_surface, this);
+            Q_ASSERT(m_shellSurface);
+            m_shellSurface->setToplevel();
+            connect(m_shellSurface, &ShellSurface::sizeChanged, this, &ShadowTest::render);
+            render();
+        }
+    );
+    registry->setEventQueue(m_eventQueue);
+    registry->create(m_connectionThreadObject);
+    registry->setup();
+}
+
+void ShadowTest::setupShadow()
+{
+    Q_ASSERT(m_shadowManager);
+    Shadow *shadow = m_shadowManager->createShadow(m_surface, this);
+    Q_ASSERT(shadow);
+
+    auto addElement = [shadow, this](const QColor color) {
+        const QSize size = QSize(10, 10);
+        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(color);
+        return buffer;
+    };
+    shadow->attachTopLeft(addElement(Qt::red));
+    shadow->attachTop(addElement(Qt::darkRed));
+    shadow->attachTopRight(addElement(Qt::green));
+    shadow->attachRight(addElement(Qt::darkGreen));
+    shadow->attachBottomRight(addElement(Qt::darkBlue));
+    shadow->attachBottom(addElement(Qt::cyan));
+    shadow->attachBottomLeft(addElement(Qt::darkCyan));
+    shadow->attachLeft(addElement(Qt::magenta));
+    shadow->setOffsets(QMarginsF(5, 5, 5, 5));
+    shadow->commit();
+}
+
+void ShadowTest::render()
+{
+    const QSize &size = m_shellSurface->size().isValid() ? m_shellSurface->size() : QSize(300, 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(QColor(255, 255, 255, 128));
+
+    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)
+{
+    QGuiApplication app(argc, argv);
+    ShadowTest client;
+    client.init();
+
+    return app.exec();
+}
+
+#include "shadowtest.moc"