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++ // Copyright (C) 2025 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++
++ #ifndef QSSGRENDERROOT_P_H
++ #define QSSGRENDERROOT_P_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 <QtQuick3DRuntimeRender/private/qssgrendernode_p.h>
++
++ #include <QtGui/qmatrix4x4.h>
++
++ #include <memory>
++
++ QT_BEGIN_NAMESPACE
++
++ class QSSGGlobalRenderNodeData;
++
++ class Q_QUICK3DRUNTIMERENDER_EXPORT QSSGRenderRoot final : public QSSGRenderNode
++ {
++ public:
++ QSSGRenderRoot();
++ ~QSSGRenderRoot();
++
++ using VersionType = QSSGRenderNodeVersionType;
++
++ enum class DirtyFlag : quint8
++ {
++ TreeDirty = 0x1
++ };
++ using FlagT = std::underlying_type_t<DirtyFlag>;
++
++ static constexpr DirtyFlag DirtyMask { std::numeric_limits<FlagT>::max() };
++
++ [[nodiscard]] bool isDirty(DirtyFlag dirtyFlag = DirtyMask) const
++ {
++ return ((m_rootDirtyFlags & FlagT(dirtyFlag)) != 0)
++ || ((dirtyFlag == DirtyMask) && QSSGRenderNode::isDirty());
++ }
++ void markDirty(DirtyFlag dirtyFlag);
++ void clearDirty(DirtyFlag dirtyFlag);
++
++ [[nodiscard]] const std::shared_ptr<QSSGGlobalRenderNodeData> &globalNodeData() const
++ {
++ return m_gnd;
++ }
++
++ // This is the starting point when indexing the nodes.
++ // By default it is 0, which means the first version when
++ // indexing will be 1. The start version can be set to a
++ // different value when needed. For example we'll set this
++ // to the last version of the layer node when the window
++ // changes, as that avoids accidentally re-using the same
++ // version when re-indexing the layer node, as that can cause
++ // issues.
++ void setStartVersion(VersionType startVersion)
++ {
++ m_startVersion = startVersion;
++ }
++
++ [[nodiscard]] VersionType startVersion() const
++ {
++ return m_startVersion;
++ }
++
++ [[nodiscard]] static QSSGRenderRoot *get(QSSGRenderRoot **ref)
++ {
++ return (ref && *ref) ? *ref : nullptr;
++ }
++
++ void reindex();
++
++ private:
++ QSSGRenderRoot *self = this;
++ VersionType m_startVersion = 0;
++ std::shared_ptr<QSSGGlobalRenderNodeData> m_gnd;
++ FlagT m_rootDirtyFlags = FlagT(DirtyFlag::TreeDirty);
++ };
++
++ QT_END_NAMESPACE
++
++ #endif // QSSGRENDERROOT_P_H