autotests/integration/buffer_size_change_test.cpp

0001 /*
0002     KWin - the KDE window manager
0003     This file is part of the KDE project.
0004
0005     SPDX-FileCopyrightText: 2019 Roman Gilg <subdiff@gmail.com>
0006
0007     SPDX-License-Identifier: GPL-2.0-or-later
0008 */
0009 #include "generic_scene_opengl_test.h"
0010
0011 #include "composite.h"
0012 #include "scene/workspacescene.h"
0013 #include "wayland_server.h"
0014 #include "window.h"
0015
0016 #include <KWayland/Client/subsurface.h>
0017 #include <KWayland/Client/surface.h>
0018
0019 namespace KWin
0020 {
0021
0022 static const QString s_socketName = QStringLiteral("wayland_test_buffer_size_change-0");
0023
0024 class BufferSizeChangeTest : public GenericSceneOpenGLTest
0025 {
0026     Q_OBJECT
0027 public:
0028     BufferSizeChangeTest()
0029         : GenericSceneOpenGLTest(QByteArrayLiteral("O2"))
0030     {
0031     }
0032 private Q_SLOTS:
0033     void init();
0034     void testShmBufferSizeChange();
0035     void testShmBufferSizeChangeOnSubSurface();
0036 };
0037
0038 void BufferSizeChangeTest::init()
0039 {
0040     QVERIFY(Test::setupWaylandConnection());
0041 }
0042
0043 void BufferSizeChangeTest::testShmBufferSizeChange()
0044 {
0045     // This test verifies that an SHM buffer size change is handled correctly
0046
0047     std::unique_ptr<KWayland::Client::Surface> surface(Test::createSurface());
0048     QVERIFY(surface != nullptr);
0049
0050     std::unique_ptr<Test::XdgToplevel> shellSurface(Test::createXdgToplevelSurface(surface.get()));
0051     QVERIFY(shellSurface != nullptr);
0052
0053     // set buffer size
0054     Window *window = Test::renderAndWaitForShown(surface.get(), QSize(100, 50), Qt::blue);
0055     QVERIFY(window);
0056
0057     // add a first repaint
0058     QSignalSpy frameRenderedSpy(Compositor::self()->scene(), &WorkspaceScene::frameRendered);
0059     Compositor::self()->scene()->addRepaintFull();
0060     QVERIFY(frameRenderedSpy.wait());
0061
0062     // now change buffer size
0063     Test::render(surface.get(), QSize(30, 10), Qt::red);
0064
0065     QSignalSpy damagedSpy(window, &Window::damaged);
0066     QVERIFY(damagedSpy.wait());
0067     KWin::Compositor::self()->scene()->addRepaintFull();
0068     QVERIFY(frameRenderedSpy.wait());
0069 }
0070
0071 void BufferSizeChangeTest::testShmBufferSizeChangeOnSubSurface()
0072 {
0073     // setup parent surface
0074     std::unique_ptr<KWayland::Client::Surface> parentSurface(Test::createSurface());
0075     QVERIFY(parentSurface != nullptr);
0076     std::unique_ptr<Test::XdgToplevel> shellSurface(Test::createXdgToplevelSurface(parentSurface.get()));
0077     QVERIFY(shellSurface != nullptr);
0078
0079     // setup sub surface
0080     std::unique_ptr<KWayland::Client::Surface> surface(Test::createSurface());
0081     QVERIFY(surface != nullptr);
0082     std::unique_ptr<KWayland::Client::SubSurface> subSurface(Test::createSubSurface(surface.get(), parentSurface.get()));
0083     QVERIFY(subSurface != nullptr);
0084
0085     // set buffer sizes
0086     Test::render(surface.get(), QSize(30, 10), Qt::red);
0087     Window *parent = Test::renderAndWaitForShown(parentSurface.get(), QSize(100, 50), Qt::blue);
0088     QVERIFY(parent);
0089
0090     // add a first repaint
0091     QSignalSpy frameRenderedSpy(Compositor::self()->scene(), &WorkspaceScene::frameRendered);
0092     Compositor::self()->scene()->addRepaintFull();
0093     QVERIFY(frameRenderedSpy.wait());
0094
0095     // change buffer size of sub surface
0096     QSignalSpy damagedParentSpy(parent, &Window::damaged);
0097     Test::render(surface.get(), QSize(20, 10), Qt::red);
0098     parentSurface->commit(KWayland::Client::Surface::CommitFlag::None);
0099
0100     QVERIFY(damagedParentSpy.wait());
0101
0102     // add a second repaint
0103     KWin::Compositor::self()->scene()->addRepaintFull();
0104     QVERIFY(frameRenderedSpy.wait());
0105 }
0106
0107 }
0108
0109 WAYLANDTEST_MAIN(KWin::BufferSizeChangeTest)
0110 #include "buffer_size_change_test.moc"