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+/****************************************************************************
+**
+** 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QEGLFSFUNCTIONS_H
+#define QEGLFSFUNCTIONS_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/QByteArray>
+#include <QtGui/QGuiApplication>
+
+QT_BEGIN_NAMESPACE
+
+class QEglFSFunctions
+{
+public:
+    typedef void (*LoadKeymapType)(const QString &filename);
+    typedef void (*SwitchLangType)();
+    static QByteArray loadKeymapTypeIdentifier() { return QByteArrayLiteral("EglFSLoadKeymap"); }
+    static QByteArray switchLangTypeIdentifier() { return QByteArrayLiteral("EglFSSwitchLang"); }
+
+    static void loadKeymap(const QString &filename)
+    {
+        LoadKeymapType func = reinterpret_cast<LoadKeymapType>(QGuiApplication::platformFunction(loadKeymapTypeIdentifier()));
+        if (func)
+            func(filename);
+    }
+
+    static void switchLang()
+    {
+        SwitchLangType func = reinterpret_cast<SwitchLangType>(QGuiApplication::platformFunction(switchLangTypeIdentifier()));
+        if (func)
+            func();
+    }
+
+    typedef int (*Vsp2AddLayerType)(const QScreen *screen, int dmabufFd, const QSize &size, const QPoint &position, uint drmPixelFormat, uint bytesPerLine);
+    static QByteArray vsp2AddLayerTypeIdentifier() { return QByteArrayLiteral("EglFSVsp2AddLayer"); }
+
+    //vsp2 functions are currently internal and preliminary (see qdoc file)
+    static int vsp2AddLayer(const QScreen *screen, int dmabufFd, const QSize &size, const QPoint &position, uint drmPixelFormat, uint bytesPerLine)
+    {
+        auto func = reinterpret_cast<Vsp2AddLayerType>(QGuiApplication::platformFunction(vsp2AddLayerTypeIdentifier()));
+        if (func)
+            return func(screen, dmabufFd, size, position, drmPixelFormat, bytesPerLine);
+        return 0;
+    }
+
+    typedef bool (*Vsp2RemoveLayerType)(const QScreen *screen, int id);
+    static QByteArray vsp2RemoveLayerTypeIdentifier() { return QByteArrayLiteral("EglFSVsp2RemoveLayer"); }
+
+    static bool vsp2RemoveLayer(const QScreen *screen, int id)
+    {
+        auto func = reinterpret_cast<Vsp2RemoveLayerType>(QGuiApplication::platformFunction(vsp2RemoveLayerTypeIdentifier()));
+        return func && func(screen, id);
+    }
+
+    typedef void (*Vsp2SetLayerBufferType)(const QScreen *screen, int id, int dmabufFd);
+    static QByteArray vsp2SetLayerBufferTypeIdentifier() { return QByteArrayLiteral("EglFSVsp2SetLayerBuffer"); }
+
+    static void vsp2SetLayerBuffer(const QScreen *screen, int id, int dmabufFd)
+    {
+        auto func = reinterpret_cast<Vsp2SetLayerBufferType>(QGuiApplication::platformFunction(vsp2SetLayerBufferTypeIdentifier()));
+        if (func)
+            func(screen, id, dmabufFd);
+    }
+
+    typedef bool (*Vsp2SetLayerPositionType)(const QScreen *screen, int id, const QPoint &position);
+    static QByteArray vsp2SetLayerPositionTypeIdentifier() { return QByteArrayLiteral("EglFSVsp2SetLayerPosition"); }
+
+    static bool vsp2SetLayerPosition(const QScreen *screen, int id, const QPoint &position)
+    {
+        auto func = reinterpret_cast<Vsp2SetLayerPositionType>(QGuiApplication::platformFunction(vsp2SetLayerPositionTypeIdentifier()));
+        return func && func(screen, id, position);
+    }
+
+    typedef bool (*Vsp2SetLayerAlphaType)(const QScreen *screen, int id, qreal alpha);
+    static QByteArray vsp2SetLayerAlphaTypeIdentifier() { return QByteArrayLiteral("EglFSVsp2SetLayerAlpha"); }
+
+    static bool vsp2SetLayerAlpha(const QScreen *screen, int id, qreal alpha)
+    {
+        auto func = reinterpret_cast<Vsp2SetLayerAlphaType>(QGuiApplication::platformFunction(vsp2SetLayerAlphaTypeIdentifier()));
+        return func && func(screen, id, alpha);
+    }
+
+    typedef void (*Vsp2AddBlendListenerType)(const QScreen *screen, void(*callback)());
+    static QByteArray vsp2AddBlendListenerTypeIdentifier() { return QByteArrayLiteral("EglFSVsp2AddBlendListener"); }
+
+    static void vsp2AddBlendListener(const QScreen *screen, void(*callback)())
+    {
+        auto func = reinterpret_cast<Vsp2AddBlendListenerType>(QGuiApplication::platformFunction(vsp2AddBlendListenerTypeIdentifier()));
+        if (func)
+            func(screen, callback);
+    }
+};
+
+
+QT_END_NAMESPACE
+
+#endif // QEGLFSFUNCTIONS_H