344 lines
9.6 KiB
C++
344 lines
9.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the plugins of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qeglfsdeviceintegration.h"
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#include "qeglfsintegration.h"
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#include "qeglfscursor.h"
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#include "qeglfswindow.h"
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#include <QtPlatformSupport/private/qeglconvenience_p.h>
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#include <QGuiApplication>
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#include <private/qguiapplication_p.h>
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#include <QScreen>
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#include <QDir>
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#include <QRegularExpression>
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#include <QLoggingCategory>
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#if defined(Q_OS_LINUX)
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#include <fcntl.h>
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#include <unistd.h>
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#include <linux/fb.h>
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#include <sys/ioctl.h>
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#endif
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#include <private/qfactoryloader_p.h>
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#include <private/qcore_unix_p.h>
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QT_BEGIN_NAMESPACE
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Q_LOGGING_CATEGORY(qLcEglDevDebug, "qt.qpa.egldeviceintegration")
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#ifndef QT_NO_LIBRARY
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Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
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(QEGLDeviceIntegrationFactoryInterface_iid, QLatin1String("/egldeviceintegrations"), Qt::CaseInsensitive))
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Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, directLoader,
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(QEGLDeviceIntegrationFactoryInterface_iid, QLatin1String(""), Qt::CaseInsensitive))
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#endif // QT_NO_LIBRARY
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QStringList QEGLDeviceIntegrationFactory::keys(const QString &pluginPath)
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{
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#ifndef QT_NO_LIBRARY
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QStringList list;
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if (!pluginPath.isEmpty()) {
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QCoreApplication::addLibraryPath(pluginPath);
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list = directLoader()->keyMap().values();
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if (!list.isEmpty()) {
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const QString postFix = QStringLiteral(" (from ")
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+ QDir::toNativeSeparators(pluginPath)
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+ QLatin1Char(')');
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const QStringList::iterator end = list.end();
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for (QStringList::iterator it = list.begin(); it != end; ++it)
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(*it).append(postFix);
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}
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}
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list.append(loader()->keyMap().values());
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qCDebug(qLcEglDevDebug) << "EGL device integration plugin keys:" << list;
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return list;
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#else
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Q_UNUSED(pluginPath);
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return QStringList();
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#endif
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}
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QEGLDeviceIntegration *QEGLDeviceIntegrationFactory::create(const QString &key, const QString &pluginPath)
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{
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QEGLDeviceIntegration *integration = Q_NULLPTR;
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#ifndef QT_NO_LIBRARY
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if (!pluginPath.isEmpty()) {
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QCoreApplication::addLibraryPath(pluginPath);
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integration = qLoadPlugin<QEGLDeviceIntegration, QEGLDeviceIntegrationPlugin>(directLoader(), key);
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}
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if (!integration)
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integration = qLoadPlugin<QEGLDeviceIntegration, QEGLDeviceIntegrationPlugin>(loader(), key);
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if (integration)
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qCDebug(qLcEglDevDebug) << "Using EGL device integration" << key;
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else
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qCWarning(qLcEglDevDebug) << "Failed to load EGL device integration" << key;
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#else
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Q_UNUSED(key);
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Q_UNUSED(pluginPath);
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#endif
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return integration;
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}
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static int framebuffer = -1;
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QByteArray QEGLDeviceIntegration::fbDeviceName() const
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{
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QByteArray fbDev = qgetenv("QT_QPA_EGLFS_FB");
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if (fbDev.isEmpty())
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fbDev = QByteArrayLiteral("/dev/fb0");
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return fbDev;
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}
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int QEGLDeviceIntegration::framebufferIndex() const
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{
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int fbIndex = 0;
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#ifndef QT_NO_REGULAREXPRESSION
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QRegularExpression fbIndexRx(QLatin1String("fb(\\d+)"));
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QRegularExpressionMatch match = fbIndexRx.match(QString::fromLocal8Bit(fbDeviceName()));
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if (match.hasMatch())
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fbIndex = match.captured(1).toInt();
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#endif
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return fbIndex;
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}
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void QEGLDeviceIntegration::platformInit()
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{
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QByteArray fbDev = fbDeviceName();
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framebuffer = qt_safe_open(fbDev, O_RDONLY);
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if (Q_UNLIKELY(framebuffer == -1)) {
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qWarning("EGLFS: Failed to open %s", fbDev.constData());
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qFatal("EGLFS: Can't continue without a display");
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}
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#ifdef FBIOBLANK
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ioctl(framebuffer, FBIOBLANK, VESA_NO_BLANKING);
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#endif
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}
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void QEGLDeviceIntegration::platformDestroy()
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{
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if (framebuffer != -1)
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close(framebuffer);
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}
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EGLNativeDisplayType QEGLDeviceIntegration::platformDisplay() const
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{
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return EGL_DEFAULT_DISPLAY;
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}
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EGLDisplay QEGLDeviceIntegration::createDisplay(EGLNativeDisplayType nativeDisplay)
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{
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return eglGetDisplay(nativeDisplay);
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}
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bool QEGLDeviceIntegration::usesDefaultScreen()
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{
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return true;
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}
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void QEGLDeviceIntegration::screenInit()
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{
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// Nothing to do here. Called only when usesDefaultScreen is false.
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}
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void QEGLDeviceIntegration::screenDestroy()
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{
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QGuiApplication *app = qGuiApp;
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QEglFSIntegration *platformIntegration = static_cast<QEglFSIntegration *>(
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QGuiApplicationPrivate::platformIntegration());
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while (!app->screens().isEmpty())
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platformIntegration->removeScreen(app->screens().last()->handle());
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}
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QSizeF QEGLDeviceIntegration::physicalScreenSize() const
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{
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return q_physicalScreenSizeFromFb(framebuffer, screenSize());
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}
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QSize QEGLDeviceIntegration::screenSize() const
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{
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return q_screenSizeFromFb(framebuffer);
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}
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QDpi QEGLDeviceIntegration::logicalDpi() const
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{
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const QSizeF ps = physicalScreenSize();
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const QSize s = screenSize();
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if (!ps.isEmpty() && !s.isEmpty())
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return QDpi(25.4 * s.width() / ps.width(),
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25.4 * s.height() / ps.height());
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else
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return QDpi(100, 100);
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}
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qreal QEGLDeviceIntegration::pixelDensity() const
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{
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return qRound(logicalDpi().first / qreal(100));
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}
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Qt::ScreenOrientation QEGLDeviceIntegration::nativeOrientation() const
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{
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return Qt::PrimaryOrientation;
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}
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Qt::ScreenOrientation QEGLDeviceIntegration::orientation() const
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{
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return Qt::PrimaryOrientation;
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}
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int QEGLDeviceIntegration::screenDepth() const
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{
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return q_screenDepthFromFb(framebuffer);
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}
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QImage::Format QEGLDeviceIntegration::screenFormat() const
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{
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return screenDepth() == 16 ? QImage::Format_RGB16 : QImage::Format_RGB32;
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}
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qreal QEGLDeviceIntegration::refreshRate() const
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{
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return q_refreshRateFromFb(framebuffer);
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}
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EGLint QEGLDeviceIntegration::surfaceType() const
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{
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return EGL_WINDOW_BIT;
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}
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QSurfaceFormat QEGLDeviceIntegration::surfaceFormatFor(const QSurfaceFormat &inputFormat) const
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{
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QSurfaceFormat format = inputFormat;
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static const bool force888 = qEnvironmentVariableIntValue("QT_QPA_EGLFS_FORCE888");
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if (force888) {
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format.setRedBufferSize(8);
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format.setGreenBufferSize(8);
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format.setBlueBufferSize(8);
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}
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return format;
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}
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bool QEGLDeviceIntegration::filterConfig(EGLDisplay, EGLConfig) const
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{
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return true;
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}
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QEglFSWindow *QEGLDeviceIntegration::createWindow(QWindow *window) const
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{
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return new QEglFSWindow(window);
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}
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EGLNativeWindowType QEGLDeviceIntegration::createNativeWindow(QPlatformWindow *platformWindow,
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const QSize &size,
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const QSurfaceFormat &format)
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{
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Q_UNUSED(platformWindow);
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Q_UNUSED(size);
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Q_UNUSED(format);
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return 0;
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}
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EGLNativeWindowType QEGLDeviceIntegration::createNativeOffscreenWindow(const QSurfaceFormat &format)
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{
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Q_UNUSED(format);
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return 0;
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}
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void QEGLDeviceIntegration::destroyNativeWindow(EGLNativeWindowType window)
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{
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Q_UNUSED(window);
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}
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bool QEGLDeviceIntegration::hasCapability(QPlatformIntegration::Capability cap) const
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{
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Q_UNUSED(cap);
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return false;
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}
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QPlatformCursor *QEGLDeviceIntegration::createCursor(QPlatformScreen *screen) const
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{
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return new QEglFSCursor(screen);
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}
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void QEGLDeviceIntegration::waitForVSync(QPlatformSurface *surface) const
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{
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Q_UNUSED(surface);
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#if defined(FBIO_WAITFORVSYNC)
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static const bool forceSync = qEnvironmentVariableIntValue("QT_QPA_EGLFS_FORCEVSYNC");
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if (forceSync && framebuffer != -1) {
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int arg = 0;
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if (ioctl(framebuffer, FBIO_WAITFORVSYNC, &arg) == -1)
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qWarning("Could not wait for vsync.");
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}
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#endif
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}
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void QEGLDeviceIntegration::presentBuffer(QPlatformSurface *surface)
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{
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Q_UNUSED(surface);
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}
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bool QEGLDeviceIntegration::supportsPBuffers() const
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{
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return true;
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}
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bool QEGLDeviceIntegration::supportsSurfacelessContexts() const
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{
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return true;
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}
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void *QEGLDeviceIntegration::wlDisplay() const
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{
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return Q_NULLPTR;
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}
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QT_END_NAMESPACE
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