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-rw-r--r--src/plugins/platforms/eglfs/api/qeglfshooks.cpp136
1 files changed, 136 insertions, 0 deletions
diff --git a/src/plugins/platforms/eglfs/api/qeglfshooks.cpp b/src/plugins/platforms/eglfs/api/qeglfshooks.cpp
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+++ b/src/plugins/platforms/eglfs/api/qeglfshooks.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the qmake spec 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 "qeglfshooks_p.h"
+#include <QLoggingCategory>
+
+QT_BEGIN_NAMESPACE
+
+Q_DECLARE_LOGGING_CATEGORY(qLcEglDevDebug)
+
+#ifdef EGLFS_PLATFORM_HOOKS
+
+QEglFSDeviceIntegration *qt_egl_device_integration()
+{
+ extern QEglFSHooks *platformHooks;
+ return platformHooks;
+}
+
+#else
+
+class DeviceIntegration
+{
+public:
+ DeviceIntegration();
+ ~DeviceIntegration() { delete m_integration; }
+ QEglFSDeviceIntegration *integration() { return m_integration; }
+private:
+ QEglFSDeviceIntegration *m_integration;
+};
+
+Q_GLOBAL_STATIC(DeviceIntegration, deviceIntegration)
+
+DeviceIntegration::DeviceIntegration() : m_integration(0)
+{
+ QStringList pluginKeys = QEglFSDeviceIntegrationFactory::keys();
+ if (!pluginKeys.isEmpty()) {
+ // Some built-in logic: Prioritize either X11 or KMS/DRM.
+ if (qEnvironmentVariableIsSet("DISPLAY")) {
+ const QString x11key = QStringLiteral("eglfs_x11");
+ if (pluginKeys.contains(x11key)) {
+ pluginKeys.removeOne(x11key);
+ pluginKeys.prepend(x11key);
+ }
+ } else {
+ const QString kmskey = QStringLiteral("eglfs_kms");
+ if (pluginKeys.contains(kmskey)) {
+ pluginKeys.removeOne(kmskey);
+ pluginKeys.prepend(kmskey);
+ }
+ }
+
+ QByteArray requested;
+
+ // The environment variable can override everything.
+ if (qEnvironmentVariableIsSet("QT_QPA_EGLFS_INTEGRATION")) {
+ requested = qgetenv("QT_QPA_EGLFS_INTEGRATION");
+ } else {
+ // Device-specific makespecs may define a preferred plugin.
+#ifdef EGLFS_PREFERRED_PLUGIN
+#define DEFAULT_PLUGIN EGLFS_PREFERRED_PLUGIN
+#define STR(s) #s
+#define STRQ(s) STR(s)
+ requested = STRQ(DEFAULT_PLUGIN);
+#endif
+ }
+
+ // Treat "none" as special. There has to be a way to indicate
+ // that plugins must be ignored when the device is known to be
+ // functional with the default, non-specialized integration.
+ if (requested != QByteArrayLiteral("none")) {
+ if (!requested.isEmpty()) {
+ QString reqStr = QString::fromLocal8Bit(requested);
+ pluginKeys.removeOne(reqStr);
+ pluginKeys.prepend(reqStr);
+ }
+ qCDebug(qLcEglDevDebug) << "EGL device integration plugin keys (sorted):" << pluginKeys;
+ while (!m_integration && !pluginKeys.isEmpty()) {
+ QString key = pluginKeys.takeFirst();
+ qCDebug(qLcEglDevDebug) << "Trying to load device EGL integration" << key;
+ m_integration = QEglFSDeviceIntegrationFactory::create(key);
+ }
+ }
+ }
+
+ if (!m_integration) {
+ // Use a default, non-specialized device integration when no plugin is available.
+ // For some systems this is sufficient.
+ qCDebug(qLcEglDevDebug) << "Using base device integration";
+ m_integration = new QEglFSDeviceIntegration;
+ }
+}
+
+QEglFSDeviceIntegration *qt_egl_device_integration()
+{
+ return deviceIntegration()->integration();
+}
+
+#endif // EGLFS_PLATFORM_HOOKS
+
+QT_END_NAMESPACE