a025791d7b
The backend is based on drm's gbm backend and also uses the GBM platform, but with the default display allowing the driver to pick a device. In addition it doesn't use a surface, but a surfaceless context with a framebuffer object to render to. Given that it diverged too much from drm's backend to allow more code sharing. If KWin is started from a tty it gets a proper driver, if KWin is started in a X11 session it only gets llvmpipe. Given that there is a chance that the autotests using the virtual backend will fail. In that case a follow up patch will enforce either O2 or Q.
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "virtual_backend.h"
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#include "scene_qpainter_virtual_backend.h"
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#include "screens_virtual.h"
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#include "wayland_server.h"
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#include "egl_gbm_backend.h"
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// Qt
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#include <QTemporaryDir>
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// KWayland
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#include <KWayland/Server/seat_interface.h>
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namespace KWin
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{
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VirtualBackend::VirtualBackend(QObject *parent)
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: AbstractBackend(parent)
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{
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if (qEnvironmentVariableIsSet("KWIN_WAYLAND_VIRTUAL_SCREENSHOTS")) {
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m_screenshotDir.reset(new QTemporaryDir);
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if (!m_screenshotDir->isValid()) {
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m_screenshotDir.reset();
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}
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if (!m_screenshotDir.isNull()) {
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qDebug() << "Screenshots saved to: " << m_screenshotDir->path();
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}
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}
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setSoftWareCursor(true);
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setSupportsPointerWarping(true);
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}
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VirtualBackend::~VirtualBackend() = default;
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void VirtualBackend::init()
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{
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m_size = initialWindowSize();
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setReady(true);
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waylandServer()->seat()->setHasPointer(true);
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waylandServer()->seat()->setHasKeyboard(true);
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waylandServer()->seat()->setHasTouch(true);
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emit screensQueried();
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}
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QString VirtualBackend::screenshotDirPath() const
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{
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if (m_screenshotDir.isNull()) {
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return QString();
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}
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return m_screenshotDir->path();
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}
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Screens *VirtualBackend::createScreens(QObject *parent)
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{
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return new VirtualScreens(this, parent);
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}
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QPainterBackend *VirtualBackend::createQPainterBackend()
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{
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return new VirtualQPainterBackend(this);
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}
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OpenGLBackend *VirtualBackend::createOpenGLBackend()
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{
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return new EglGbmBackend(this);
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}
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}
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