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+/****************************************************************************
+**
+** Copyright (C) 2019 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 SHAREDTEXTUREPROVIDER_H
+#define SHAREDTEXTUREPROVIDER_H
+
+#include <QOpenGLFunctions>
+#include <QQuickImageProvider>
+#include <QtQuick/QSGTexture>
+#include <QScopedPointer>
+#include <QHash>
+
+#include <QtWaylandClient/private/qwaylandserverbufferintegration_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class TextureSharingExtension;
+
+class SharedTextureRegistry : public QObject
+{
+ Q_OBJECT
+public:
+ SharedTextureRegistry();
+ ~SharedTextureRegistry() override;
+
+ const QtWaylandClient::QWaylandServerBuffer *bufferForId(const QString &id) const;
+ void requestBuffer(const QString &id);
+ void abandonBuffer(const QString &id);
+
+ static bool preinitialize();
+
+public slots:
+ void receiveBuffer(QtWaylandClient::QWaylandServerBuffer *buffer, const QString &id);
+
+signals:
+ void replyReceived(const QString &id);
+
+private slots:
+ void handleExtensionActive();
+
+private:
+ TextureSharingExtension *m_extension = nullptr;
+ QHash<QString, QtWaylandClient::QWaylandServerBuffer *> m_buffers;
+ QStringList m_pendingBuffers;
+};
+
+class SharedTextureProvider : public QQuickAsyncImageProvider
+{
+public:
+ SharedTextureProvider();
+ ~SharedTextureProvider() override;
+
+ QQuickImageResponse *requestImageResponse(const QString &id, const QSize &requestedSize) override;
+
+private:
+ SharedTextureRegistry *m_registry = nullptr;
+ bool m_sharingAvailable = false;
+};
+
+class SharedTexture : public QSGTexture
+{
+ Q_OBJECT
+public:
+ SharedTexture(QtWaylandClient::QWaylandServerBuffer *buffer);
+
+ int textureId() const override;
+ QSize textureSize() const override;
+ bool hasAlphaChannel() const override;
+ bool hasMipmaps() const override;
+
+ void bind() override;
+
+private:
+ void updateGLTexture() const;
+ QtWaylandClient::QWaylandServerBuffer *m_buffer = nullptr;
+ mutable QOpenGLTexture *m_tex = nullptr;
+};
+
+
+QT_END_NAMESPACE
+
+#endif // SHAREDTEXTUREPROVIDER_H