kwin/autotests/integration/plasma_surface_test.cpp
Martin Gräßlin 7bca270f97 Force windows of type desktop to be opaque
Summary:
Plasmashell's desktop windows are RGBA which forces the compositor to
perform blending and render the background. That is absolutely pointless
as there is no window behind the desktop window it could blend to. All it
does is destroying KWin's more optimized code path and forcing additional
rendering which will never be visible (including shader push/pop).

With this change KWin forces desktop windows (both X11 and Wayland) to
be considered as opaque by setting the depth to 24. Thus blending is
disabled and the background is not rendered.

Test Plan:
Verified with apitrace that KWin goes in the opaque rendering
path for desktop windows.

Reviewers: #kwin, #plasma

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D2382
2016-08-10 15:10:22 +02:00

203 lines
7.8 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2016 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "kwin_wayland_test.h"
#include "platform.h"
#include "shell_client.h"
#include "wayland_server.h"
#include "workspace.h"
#include <KWayland/Client/connection_thread.h>
#include <KWayland/Client/compositor.h>
#include <KWayland/Client/event_queue.h>
#include <KWayland/Client/plasmashell.h>
#include <KWayland/Client/registry.h>
#include <KWayland/Client/shm_pool.h>
#include <KWayland/Client/shell.h>
#include <KWayland/Client/surface.h>
using namespace KWin;
using namespace KWayland::Client;
static const QString s_socketName = QStringLiteral("wayland_test_kwin_plasma_surface-0");
class PlasmaSurfaceTest : public QObject
{
Q_OBJECT
private Q_SLOTS:
void initTestCase();
void init();
void cleanup();
void testRoleOnAllDesktops_data();
void testRoleOnAllDesktops();
void testAcceptsFocus_data();
void testAcceptsFocus();
void testDesktopIsOpaque();
private:
ConnectionThread *m_connection = nullptr;
KWayland::Client::Compositor *m_compositor = nullptr;
Shell *m_shell = nullptr;
PlasmaShell *m_plasmaShell = nullptr;
};
void PlasmaSurfaceTest::initTestCase()
{
qRegisterMetaType<KWin::ShellClient*>();
QSignalSpy workspaceCreatedSpy(kwinApp(), &Application::workspaceCreated);
QVERIFY(workspaceCreatedSpy.isValid());
kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
QVERIFY(waylandServer()->init(s_socketName.toLocal8Bit()));
kwinApp()->start();
QVERIFY(workspaceCreatedSpy.wait());
}
void PlasmaSurfaceTest::init()
{
QVERIFY(Test::setupWaylandConnection(s_socketName, Test::AdditionalWaylandInterface::PlasmaShell));
m_compositor = Test::waylandCompositor();
m_shell = Test::waylandShell();
m_plasmaShell = Test::waylandPlasmaShell();
}
void PlasmaSurfaceTest::cleanup()
{
Test::destroyWaylandConnection();
}
void PlasmaSurfaceTest::testRoleOnAllDesktops_data()
{
QTest::addColumn<PlasmaShellSurface::Role>("role");
QTest::addColumn<bool>("expectedOnAllDesktops");
QTest::newRow("Desktop") << PlasmaShellSurface::Role::Desktop << true;
QTest::newRow("Panel") << PlasmaShellSurface::Role::Panel << true;
QTest::newRow("OSD") << PlasmaShellSurface::Role::OnScreenDisplay << true;
QTest::newRow("Normal") << PlasmaShellSurface::Role::Normal << false;
QTest::newRow("Notification") << PlasmaShellSurface::Role::Notification << true;
QTest::newRow("ToolTip") << PlasmaShellSurface::Role::ToolTip << true;
}
void PlasmaSurfaceTest::testRoleOnAllDesktops()
{
// this test verifies that a ShellClient is set on all desktops when the role changes
QScopedPointer<Surface> surface(Test::createSurface());
QVERIFY(!surface.isNull());
QScopedPointer<ShellSurface> shellSurface(Test::createShellSurface(surface.data()));
QVERIFY(!shellSurface.isNull());
QScopedPointer<PlasmaShellSurface> plasmaSurface(m_plasmaShell->createSurface(surface.data()));
QVERIFY(!plasmaSurface.isNull());
// now render to map the window
AbstractClient *c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
QVERIFY(c);
QCOMPARE(workspace()->activeClient(), c);
// currently the role is not yet set, so the window should not be on all desktops
QCOMPARE(c->isOnAllDesktops(), false);
// now let's try to change that
QSignalSpy onAllDesktopsSpy(c, &AbstractClient::desktopChanged);
QVERIFY(onAllDesktopsSpy.isValid());
QFETCH(PlasmaShellSurface::Role, role);
plasmaSurface->setRole(role);
QFETCH(bool, expectedOnAllDesktops);
QCOMPARE(onAllDesktopsSpy.wait(), expectedOnAllDesktops);
QCOMPARE(c->isOnAllDesktops(), expectedOnAllDesktops);
// let's create a second window where we init a little bit different
// first creating the PlasmaSurface then the Shell Surface
QScopedPointer<Surface> surface2(Test::createSurface());
QVERIFY(!surface2.isNull());
QScopedPointer<PlasmaShellSurface> plasmaSurface2(m_plasmaShell->createSurface(surface2.data()));
QVERIFY(!plasmaSurface2.isNull());
plasmaSurface2->setRole(role);
QScopedPointer<ShellSurface> shellSurface2(Test::createShellSurface(surface2.data()));
QVERIFY(!shellSurface2.isNull());
Test::render(surface2.data(), QSize(100, 50), Qt::blue);
QVERIFY(Test::waitForWaylandWindowShown());
QVERIFY(workspace()->activeClient() != c);
c = workspace()->activeClient();
QEXPECT_FAIL("Desktop", "PS before WS not supported", Continue);
QEXPECT_FAIL("Panel", "PS before WS not supported", Continue);
QEXPECT_FAIL("OSD", "PS before WS not supported", Continue);
QEXPECT_FAIL("Notification", "PS before WS not supported", Continue);
QEXPECT_FAIL("ToolTip", "PS before WS not supported", Continue);
QCOMPARE(c->isOnAllDesktops(), expectedOnAllDesktops);
}
void PlasmaSurfaceTest::testAcceptsFocus_data()
{
QTest::addColumn<PlasmaShellSurface::Role>("role");
QTest::addColumn<bool>("wantsInput");
QTest::addColumn<bool>("active");
QTest::newRow("Desktop") << PlasmaShellSurface::Role::Desktop << true << true;
QTest::newRow("Panel") << PlasmaShellSurface::Role::Panel << true << false;
QTest::newRow("OSD") << PlasmaShellSurface::Role::OnScreenDisplay << false << false;
QTest::newRow("Normal") << PlasmaShellSurface::Role::Normal << true << true;
QTest::newRow("Notification") << PlasmaShellSurface::Role::Notification << false << false;
QTest::newRow("ToolTip") << PlasmaShellSurface::Role::ToolTip << false << false;
}
void PlasmaSurfaceTest::testAcceptsFocus()
{
// this test verifies that some surface roles don't get focus
QScopedPointer<Surface> surface(Test::createSurface());
QVERIFY(!surface.isNull());
QScopedPointer<ShellSurface> shellSurface(Test::createShellSurface(surface.data()));
QVERIFY(!shellSurface.isNull());
QScopedPointer<PlasmaShellSurface> plasmaSurface(m_plasmaShell->createSurface(surface.data()));
QVERIFY(!plasmaSurface.isNull());
QFETCH(PlasmaShellSurface::Role, role);
plasmaSurface->setRole(role);
// now render to map the window
auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
QVERIFY(c);
QTEST(c->wantsInput(), "wantsInput");
QTEST(c->isActive(), "active");
}
void PlasmaSurfaceTest::testDesktopIsOpaque()
{
QScopedPointer<Surface> surface(Test::createSurface());
QVERIFY(!surface.isNull());
QScopedPointer<ShellSurface> shellSurface(Test::createShellSurface(surface.data()));
QVERIFY(!shellSurface.isNull());
QScopedPointer<PlasmaShellSurface> plasmaSurface(m_plasmaShell->createSurface(surface.data()));
QVERIFY(!plasmaSurface.isNull());
plasmaSurface->setRole(PlasmaShellSurface::Role::Desktop);
// now render to map the window
auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
QVERIFY(c);
QCOMPARE(c->windowType(), NET::Desktop);
QVERIFY(c->isDesktop());
QVERIFY(!c->hasAlpha());
QCOMPARE(c->depth(), 24);
}
WAYLANDTEST_MAIN(PlasmaSurfaceTest)
#include "plasma_surface_test.moc"