diff options
Diffstat (limited to 'src/plugins/platforms/eglfs/api/qeglfsdeviceintegration.cpp')
| -rw-r--r-- | src/plugins/platforms/eglfs/api/qeglfsdeviceintegration.cpp | 369 |
1 files changed, 369 insertions, 0 deletions
diff --git a/src/plugins/platforms/eglfs/api/qeglfsdeviceintegration.cpp b/src/plugins/platforms/eglfs/api/qeglfsdeviceintegration.cpp new file mode 100644 index 0000000000..3848e99221 --- /dev/null +++ b/src/plugins/platforms/eglfs/api/qeglfsdeviceintegration.cpp @@ -0,0 +1,369 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qeglfsdeviceintegration_p.h" +#include "qeglfsintegration.h" +#include "qeglfscursor_p.h" +#include "qeglfswindow_p.h" +#include "qeglfshooks_p.h" + +#include <QtPlatformSupport/private/qeglconvenience_p.h> +#include <QGuiApplication> +#include <private/qguiapplication_p.h> +#include <QScreen> +#include <QDir> +#include <QRegularExpression> +#include <QLoggingCategory> + +#if defined(Q_OS_LINUX) +#include <fcntl.h> +#include <unistd.h> +#include <linux/fb.h> +#include <sys/ioctl.h> +#endif + +#include <private/qfactoryloader_p.h> +#include <private/qcore_unix_p.h> + +QT_BEGIN_NAMESPACE + +Q_LOGGING_CATEGORY(qLcEglDevDebug, "qt.qpa.egldeviceintegration") + +Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader, + (QEglFSDeviceIntegrationFactoryInterface_iid, QLatin1String("/egldeviceintegrations"), Qt::CaseInsensitive)) + +#ifndef QT_NO_LIBRARY +Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, directLoader, + (QEglFSDeviceIntegrationFactoryInterface_iid, QLatin1String(""), Qt::CaseInsensitive)) + +#endif // QT_NO_LIBRARY + +QStringList QEglFSDeviceIntegrationFactory::keys(const QString &pluginPath) +{ + QStringList list; +#ifndef QT_NO_LIBRARY + if (!pluginPath.isEmpty()) { + QCoreApplication::addLibraryPath(pluginPath); + list = directLoader()->keyMap().values(); + if (!list.isEmpty()) { + const QString postFix = QLatin1String(" (from ") + + QDir::toNativeSeparators(pluginPath) + + QLatin1Char(')'); + const QStringList::iterator end = list.end(); + for (QStringList::iterator it = list.begin(); it != end; ++it) + (*it).append(postFix); + } + } +#else + Q_UNUSED(pluginPath); +#endif + list.append(loader()->keyMap().values()); + qCDebug(qLcEglDevDebug) << "EGL device integration plugin keys:" << list; + return list; +} + +QEglFSDeviceIntegration *QEglFSDeviceIntegrationFactory::create(const QString &key, const QString &pluginPath) +{ + QEglFSDeviceIntegration *integration = Q_NULLPTR; +#ifndef QT_NO_LIBRARY + if (!pluginPath.isEmpty()) { + QCoreApplication::addLibraryPath(pluginPath); + integration = qLoadPlugin<QEglFSDeviceIntegration, QEglFSDeviceIntegrationPlugin>(directLoader(), key); + } +#else + Q_UNUSED(pluginPath); +#endif + if (!integration) + integration = qLoadPlugin<QEglFSDeviceIntegration, QEglFSDeviceIntegrationPlugin>(loader(), key); + if (integration) + qCDebug(qLcEglDevDebug) << "Using EGL device integration" << key; + else + qCWarning(qLcEglDevDebug) << "Failed to load EGL device integration" << key; + + return integration; +} + +static int framebuffer = -1; + +QByteArray QEglFSDeviceIntegration::fbDeviceName() const +{ +#ifdef Q_OS_LINUX + QByteArray fbDev = qgetenv("QT_QPA_EGLFS_FB"); + if (fbDev.isEmpty()) + fbDev = QByteArrayLiteral("/dev/fb0"); + + return fbDev; +#else + return QByteArray(); +#endif +} + +int QEglFSDeviceIntegration::framebufferIndex() const +{ + int fbIndex = 0; +#ifndef QT_NO_REGULAREXPRESSION + QRegularExpression fbIndexRx(QLatin1String("fb(\\d+)")); + QRegularExpressionMatch match = fbIndexRx.match(QString::fromLocal8Bit(fbDeviceName())); + if (match.hasMatch()) + fbIndex = match.captured(1).toInt(); +#endif + return fbIndex; +} + +void QEglFSDeviceIntegration::platformInit() +{ +#ifdef Q_OS_LINUX + QByteArray fbDev = fbDeviceName(); + + framebuffer = qt_safe_open(fbDev, O_RDONLY); + + if (Q_UNLIKELY(framebuffer == -1)) { + qWarning("EGLFS: Failed to open %s", fbDev.constData()); + qFatal("EGLFS: Can't continue without a display"); + } + +#ifdef FBIOBLANK + ioctl(framebuffer, FBIOBLANK, VESA_NO_BLANKING); +#endif +#endif +} + +void QEglFSDeviceIntegration::platformDestroy() +{ +#ifdef Q_OS_LINUX + if (framebuffer != -1) + close(framebuffer); +#endif +} + +EGLNativeDisplayType QEglFSDeviceIntegration::platformDisplay() const +{ + return EGL_DEFAULT_DISPLAY; +} + +EGLDisplay QEglFSDeviceIntegration::createDisplay(EGLNativeDisplayType nativeDisplay) +{ + return eglGetDisplay(nativeDisplay); +} + +bool QEglFSDeviceIntegration::usesDefaultScreen() +{ + return true; +} + +void QEglFSDeviceIntegration::screenInit() +{ + // Nothing to do here. Called only when usesDefaultScreen is false. +} + +void QEglFSDeviceIntegration::screenDestroy() +{ + QGuiApplication *app = qGuiApp; + QEglFSIntegration *platformIntegration = static_cast<QEglFSIntegration *>( + QGuiApplicationPrivate::platformIntegration()); + while (!app->screens().isEmpty()) + platformIntegration->removeScreen(app->screens().last()->handle()); +} + +QSizeF QEglFSDeviceIntegration::physicalScreenSize() const +{ + return q_physicalScreenSizeFromFb(framebuffer, screenSize()); +} + +QSize QEglFSDeviceIntegration::screenSize() const +{ + return q_screenSizeFromFb(framebuffer); +} + +QDpi QEglFSDeviceIntegration::logicalDpi() const +{ + const QSizeF ps = physicalScreenSize(); + const QSize s = screenSize(); + + if (!ps.isEmpty() && !s.isEmpty()) + return QDpi(25.4 * s.width() / ps.width(), + 25.4 * s.height() / ps.height()); + else + return QDpi(100, 100); +} + +qreal QEglFSDeviceIntegration::pixelDensity() const +{ + return qRound(logicalDpi().first / qreal(100)); +} + +Qt::ScreenOrientation QEglFSDeviceIntegration::nativeOrientation() const +{ + return Qt::PrimaryOrientation; +} + +Qt::ScreenOrientation QEglFSDeviceIntegration::orientation() const +{ + return Qt::PrimaryOrientation; +} + +int QEglFSDeviceIntegration::screenDepth() const +{ + return q_screenDepthFromFb(framebuffer); +} + +QImage::Format QEglFSDeviceIntegration::screenFormat() const +{ + return screenDepth() == 16 ? QImage::Format_RGB16 : QImage::Format_RGB32; +} + +qreal QEglFSDeviceIntegration::refreshRate() const +{ + return q_refreshRateFromFb(framebuffer); +} + +EGLint QEglFSDeviceIntegration::surfaceType() const +{ + return EGL_WINDOW_BIT; +} + +QSurfaceFormat QEglFSDeviceIntegration::surfaceFormatFor(const QSurfaceFormat &inputFormat) const +{ + QSurfaceFormat format = inputFormat; + + static const bool force888 = qEnvironmentVariableIntValue("QT_QPA_EGLFS_FORCE888"); + if (force888) { + format.setRedBufferSize(8); + format.setGreenBufferSize(8); + format.setBlueBufferSize(8); + } + + return format; +} + +bool QEglFSDeviceIntegration::filterConfig(EGLDisplay, EGLConfig) const +{ + return true; +} + +QEglFSWindow *QEglFSDeviceIntegration::createWindow(QWindow *window) const +{ + return new QEglFSWindow(window); +} + +EGLNativeWindowType QEglFSDeviceIntegration::createNativeWindow(QPlatformWindow *platformWindow, + const QSize &size, + const QSurfaceFormat &format) +{ + Q_UNUSED(platformWindow); + Q_UNUSED(size); + Q_UNUSED(format); + return 0; +} + +EGLNativeWindowType QEglFSDeviceIntegration::createNativeOffscreenWindow(const QSurfaceFormat &format) +{ + Q_UNUSED(format); + return 0; +} + +void QEglFSDeviceIntegration::destroyNativeWindow(EGLNativeWindowType window) +{ + Q_UNUSED(window); +} + +bool QEglFSDeviceIntegration::hasCapability(QPlatformIntegration::Capability cap) const +{ + Q_UNUSED(cap); + return false; +} + +QPlatformCursor *QEglFSDeviceIntegration::createCursor(QPlatformScreen *screen) const +{ + return new QEglFSCursor(screen); +} + +void QEglFSDeviceIntegration::waitForVSync(QPlatformSurface *surface) const +{ + Q_UNUSED(surface); + +#if defined(Q_OS_LINUX) && defined(FBIO_WAITFORVSYNC) + static const bool forceSync = qEnvironmentVariableIntValue("QT_QPA_EGLFS_FORCEVSYNC"); + if (forceSync && framebuffer != -1) { + int arg = 0; + if (ioctl(framebuffer, FBIO_WAITFORVSYNC, &arg) == -1) + qWarning("Could not wait for vsync."); + } +#endif +} + +void QEglFSDeviceIntegration::presentBuffer(QPlatformSurface *surface) +{ + Q_UNUSED(surface); +} + +bool QEglFSDeviceIntegration::supportsPBuffers() const +{ + return true; +} + +bool QEglFSDeviceIntegration::supportsSurfacelessContexts() const +{ + return true; +} + +void *QEglFSDeviceIntegration::wlDisplay() const +{ + return Q_NULLPTR; +} + +EGLConfig QEglFSDeviceIntegration::chooseConfig(EGLDisplay display, const QSurfaceFormat &format) +{ + class Chooser : public QEglConfigChooser { + public: + Chooser(EGLDisplay display) + : QEglConfigChooser(display) { } + bool filterConfig(EGLConfig config) const Q_DECL_OVERRIDE { + return qt_egl_device_integration()->filterConfig(display(), config) + && QEglConfigChooser::filterConfig(config); + } + }; + + Chooser chooser(display); + chooser.setSurfaceType(qt_egl_device_integration()->surfaceType()); + chooser.setSurfaceFormat(format); + return chooser.chooseConfig(); +} + +QT_END_NAMESPACE |