#include <qquick3dscenerenderer_p.h>

Inheritance diagram for SGFramebufferObjectNode:

Collaboration diagram for SGFramebufferObjectNode:

Public Slots
void	render ()

void	handleScreenChange ()

Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

Public Member Functions
	SGFramebufferObjectNode ()

	~SGFramebufferObjectNode () override

void	scheduleRender ()

QSGTexture *	texture () const override
	Returns a pointer to the texture object.

void	preprocess () override
	Override this function to do processing on the node before it is rendered.

virtual QSGTexture *	texture () const =0
	Returns a pointer to the texture object.

Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)
	Constructs an object with parent object parent.

virtual	~QObject ()
	Destroys the object, deleting all its child objects.

virtual bool	event (QEvent *event)
	This virtual function receives events to an object and should return true if the event e was recognized and processed.

virtual bool	eventFilter (QObject watched, QEvent event)
	Filters events if this object has been installed as an event filter for the watched object.

QString	objectName () const

Q_WEAK_OVERLOAD void	setObjectName (const QString &name)
	Sets the object's name to name.

void	setObjectName (QAnyStringView name)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QBindable< QString >	bindableObjectName ()

bool	isWidgetType () const
	Returns `true` if the object is a widget; otherwise returns `false`.

bool	isWindowType () const
	Returns `true` if the object is a window; otherwise returns `false`.

bool	isQuickItemType () const
	Returns `true` if the object is a QQuickItem; otherwise returns `false`.

bool	signalsBlocked () const noexcept
	Returns `true` if signals are blocked; otherwise returns `false`.

bool	blockSignals (bool b) noexcept
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).

QThread *	thread () const
	Returns the thread in which the object lives.

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children.

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
	This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.

int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType=Qt::CoarseTimer)

void	killTimer (int id)
	Kills the timer with timer identifier, id.

template<typename T >
T	findChild (const QString &aName=QString(), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.

template<typename T >
QList< T >	findChildren (const QString &aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.

template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

const QObjectList &	children () const
	Returns a list of child objects.

void	setParent (QObject *parent)
	Makes the object a child of parent.

void	installEventFilter (QObject *filterObj)
	Installs an event filter filterObj on this object.

void	removeEventFilter (QObject *obj)
	Removes an event filter object obj from this object.

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=nullptr, const QObject receiver=nullptr, const char *member=nullptr) const

bool	disconnect (const QObject receiver, const char member=nullptr) const

void	dumpObjectTree () const
	Dumps a tree of children to the debug output.

void	dumpObjectInfo () const
	Dumps information about signal connections, etc.

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value.

bool	setProperty (const char *name, QVariant &&value)

QVariant	property (const char *name) const
	Returns the value of the object's name property.

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () const
	Returns a pointer to the parent object.

bool	inherits (const char *classname) const
	Returns `true` if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns `false`.

Public Member Functions inherited from QSGSimpleTextureNode
	QSGSimpleTextureNode ()
	Constructs a new simple texture node.

	~QSGSimpleTextureNode () override
	Destroys the texture node.

void	setRect (const QRectF &rect)
	Sets the target rect of this texture node to r.

void	setRect (qreal x, qreal y, qreal w, qreal h)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Sets the rectangle of this texture node to begin at (x, y) and have width w and height h.

QRectF	rect () const
	Returns the target rect of this texture node.

void	setSourceRect (const QRectF &r)
	Sets the source rect of this texture node to r.

void	setSourceRect (qreal x, qreal y, qreal w, qreal h)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QRectF	sourceRect () const
	Returns the source rect of this texture node.

void	setTexture (QSGTexture *texture)
	Sets the texture of this texture node to texture.

QSGTexture *	texture () const
	Returns the texture for this texture node.

void	setFiltering (QSGTexture::Filtering filtering)
	Sets the filtering to be used for this texture node to filtering.

QSGTexture::Filtering	filtering () const
	Returns the filtering currently set on this texture node.

void	setTextureCoordinatesTransform (TextureCoordinatesTransformMode mode)
	Sets the method used to generate texture coordinates to mode.

TextureCoordinatesTransformMode	textureCoordinatesTransform () const
	Returns the mode used to generate texture coordinates for this node.

void	setOwnsTexture (bool owns)
	Sets whether the node takes ownership of the texture to owns.

bool	ownsTexture () const
	Returns `true` if the node takes ownership of the texture; otherwise returns `false`.

Public Member Functions inherited from QSGGeometryNode
	QSGGeometryNode ()
	Creates a new geometry node without geometry and material.

	~QSGGeometryNode () override
	Deletes this geometry node.

void	setMaterial (QSGMaterial *material)
	Sets the material of this geometry node to material.

QSGMaterial *	material () const
	Returns the material of the QSGGeometryNode.

void	setOpaqueMaterial (QSGMaterial *material)
	Sets the opaque material of this geometry to material.

QSGMaterial *	opaqueMaterial () const
	Returns the opaque material of the QSGGeometryNode.

QSGMaterial *	activeMaterial () const
	Returns the material which should currently be used for geometry node.

void	setRenderOrder (int order)
	Sets the render order of this node to be order.

int	renderOrder () const
	Returns the render order of this geometry node.

void	setInheritedOpacity (qreal opacity)
	Sets the inherited opacity of this geometry to opacity.

qreal	inheritedOpacity () const
	Set during rendering to specify the inherited opacity for that rendering pass.

Public Member Functions inherited from QSGBasicGeometryNode
	~QSGBasicGeometryNode () override
	Deletes this QSGBasicGeometryNode.

void	setGeometry (QSGGeometry *geometry)
	Sets the geometry of this node to geometry.

const QSGGeometry *	geometry () const
	Returns this node's geometry.

QSGGeometry *	geometry ()
	Returns this node's geometry.

const QMatrix4x4 *	matrix () const
	Will be set during rendering to contain transformation of the geometry for that rendering pass.

const QSGClipNode *	clipList () const
	Will be set during rendering to contain the clip of the geometry for that rendering pass.

void	setRendererMatrix (const QMatrix4x4 *m)

void	setRendererClipList (const QSGClipNode *c)

Public Member Functions inherited from QSGNode
	QSGNode ()
	Constructs a new node.

virtual	~QSGNode ()
	Destroys the node.

QSGNode *	parent () const
	Returns the parent node of this node.

void	removeChildNode (QSGNode *node)
	Removes node from this node's list of children.

void	removeAllChildNodes ()
	Removes all child nodes from this node's list of children.

void	prependChildNode (QSGNode *node)
	Prepends node to this node's the list of children.

void	appendChildNode (QSGNode *node)
	Appends node to this node's list of children.

void	insertChildNodeBefore (QSGNode node, QSGNode before)
	Inserts node to this node's list of children before the node specified with before.

void	insertChildNodeAfter (QSGNode node, QSGNode after)
	Inserts node to this node's list of children after the node specified with after.

void	reparentChildNodesTo (QSGNode *newParent)

int	childCount () const
	Returns the number of child nodes.

QSGNode *	childAtIndex (int i) const
	Returns the child at index i.

QSGNode *	firstChild () const
	Returns the first child of this node.

QSGNode *	lastChild () const
	Returns the last child of this node.

QSGNode *	nextSibling () const
	Returns the node after this in the parent's list of children.

QSGNode *	previousSibling () const
	Returns the node before this in the parent's list of children.

NodeType	type () const
	Returns the type of this node.

QT_DEPRECATED void	clearDirty ()

void	markDirty (DirtyState bits)
	Notifies all connected renderers that the node has dirty bits.

QT_DEPRECATED DirtyState	dirtyState () const

virtual bool	isSubtreeBlocked () const
	Returns whether this node and its subtree is available for use.

Flags	flags () const
	Returns the set of flags for this node.

void	setFlag (Flag, bool=true)
	Sets the flag f on this node if enabled is true; otherwise clears the flag.

void	setFlags (Flags, bool=true)
	Sets the flags f on this node if enabled is true; otherwise clears the flags.

virtual void	preprocess ()
	Override this function to do processing on the node before it is rendered.

Public Attributes
QQuickWindow *	window

QQuick3DSceneRenderer *	renderer

QQuick3DViewport *	quickFbo

bool	renderPending

bool	invalidatePending

qreal	devicePixelRatio

Additional Inherited Members
Public Types inherited from QSGSimpleTextureNode
enum	TextureCoordinatesTransformFlag { NoTransform = 0x00 , MirrorHorizontally = 0x01 , MirrorVertically = 0x02 }
	The TextureCoordinatesTransformFlag enum is used to specify the mode used to generate texture coordinates for a textured quad. More...

Public Types inherited from QSGNode
enum	NodeType { BasicNodeType , GeometryNodeType , TransformNodeType , ClipNodeType , OpacityNodeType , RootNodeType , RenderNodeType }
	Can be used to figure out the type of node. More...

enum	Flag { OwnedByParent = 0x0001 , UsePreprocess = 0x0002 , OwnsGeometry = 0x00010000 , OwnsMaterial = 0x00020000 , OwnsOpaqueMaterial = 0x00040000 , IsVisitableNode = 0x01000000 }
	The QSGNode::Flag enum describes flags on the QSGNode. More...

enum	DirtyStateBit { DirtySubtreeBlocked = 0x0080 , DirtyMatrix = 0x0100 , DirtyNodeAdded = 0x0400 , DirtyNodeRemoved = 0x0800 , DirtyGeometry = 0x1000 , DirtyMaterial = 0x2000 , DirtyOpacity = 0x4000 , DirtyForceUpdate = 0x8000 , DirtyUsePreprocess = UsePreprocess , DirtyPropagationMask }
	Used in QSGNode::markDirty() to indicate how the scene graph has changed. More...

Signals inherited from QSGTextureProvider
void	textureChanged ()
	This signal is emitted when the texture changes.

Signals inherited from QObject
void	destroyed (QObject *=nullptr)
	This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.

void	objectNameChanged (const QString &objectName, QPrivateSignal)
	This signal is emitted after the object's name has been changed.

Static Public Member Functions inherited from QObject
static QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	\threadsafe

static QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	\threadsafe

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static bool	disconnect (const QMetaObject::Connection &)
	Disconnect a connection.

template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot)

template<typename Func1 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject receiver, void **zero)

Protected Member Functions inherited from QObject
QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.

int	senderSignalIndex () const

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal.

bool	isSignalConnected (const QMetaMethod &signal) const

virtual void	timerEvent (QTimerEvent *event)
	This event handler can be reimplemented in a subclass to receive timer events for the object.

virtual void	childEvent (QChildEvent *event)
	This event handler can be reimplemented in a subclass to receive child events.

virtual void	customEvent (QEvent *event)
	This event handler can be reimplemented in a subclass to receive custom events.

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

	QObject (QObjectPrivate &dd, QObject *parent=nullptr)

Protected Member Functions inherited from QSGGeometryNode
	QSGGeometryNode (QSGGeometryNodePrivate &dd)

Protected Member Functions inherited from QSGBasicGeometryNode
	QSGBasicGeometryNode (NodeType type)
	Creates a new basic geometry node of type type.

	QSGBasicGeometryNode (QSGBasicGeometryNodePrivate &dd, NodeType type)

Protected Member Functions inherited from QSGNode
	QSGNode (NodeType type)
	Constructs a new node with the given node type.

	QSGNode (QSGNodePrivate &dd, NodeType type)
	Constructs a new node with the given node type.

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Protected Attributes inherited from QSGNode
QScopedPointer< QSGNodePrivate >	d_ptr

Properties inherited from QObject
QString	objectName
	the name of this object

Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

Definition at line 132 of file qquick3dscenerenderer_p.h.

Constructor & Destructor Documentation

◆ SGFramebufferObjectNode()

SGFramebufferObjectNode::SGFramebufferObjectNode ( )

Definition at line 95 of file qquick3dscenerenderer.cpp.

References qsgnode_set_description(), QStringLiteral, QSGNode::setFlag(), and QSGNode::UsePreprocess.

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◆ ~SGFramebufferObjectNode()

SGFramebufferObjectNode::~SGFramebufferObjectNode ( )

override

Definition at line 106 of file qquick3dscenerenderer.cpp.

References renderer, and texture().

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Member Function Documentation

◆ handleScreenChange

void SGFramebufferObjectNode::handleScreenChange ( )

slot

Definition at line 182 of file qquick3dscenerenderer.cpp.

References devicePixelRatio, QQuick3DSceneRenderer::invalidateFramebufferObject(), qFuzzyCompare(), quickFbo, renderer, QQuickItem::update(), and window.

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◆ preprocess()

void SGFramebufferObjectNode::preprocess ( )

overridevirtual

Override this function to do processing on the node before it is rendered.

Preprocessing needs to be explicitly enabled by setting the flag QSGNode::UsePreprocess. The flag needs to be set before the node is added to the scene graph and will cause the preprocess() function to be called for every frame the node is rendered.

Warning: Beware of deleting nodes while they are being preprocessed. It is possible, with a small performance hit, to delete a single node during its own preprocess call. Deleting a subtree which has nodes that also use preprocessing may result in a segmentation fault. This is done for performance reasons.

Reimplemented from QSGNode.

Definition at line 123 of file qquick3dscenerenderer.cpp.

References render().

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