Revision control
++ // Copyright (C) 2019 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++ //
++ // 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.
++ //
++
++ #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 Q_SLOTS:
++ void receiveBuffer(QtWaylandClient::QWaylandServerBuffer *buffer, const QString &id);
++
++ Q_SIGNALS:
++ void replyReceived(const QString &id);
++
++ private Q_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;
++ };
++
++ QT_END_NAMESPACE
++
++ #endif // SHAREDTEXTUREPROVIDER_H