Qt 6.x
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Public Member Functions | Protected Member Functions | List of all members
QSGAbstractSoftwareRenderer Class Reference

#include <qsgabstractsoftwarerenderer_p.h>

+ Inheritance diagram for QSGAbstractSoftwareRenderer:
+ Collaboration diagram for QSGAbstractSoftwareRenderer:

Public Member Functions

 QSGAbstractSoftwareRenderer (QSGRenderContext *context)
 
virtual ~QSGAbstractSoftwareRenderer ()
 
QSGSoftwareRenderableNode * renderableNode (QSGNode *node) const
 
void addNodeMapping (QSGNode *node, QSGSoftwareRenderableNode *renderableNode)
 
void appendRenderableNode (QSGSoftwareRenderableNode *node)
 
void nodeChanged (QSGNode *node, QSGNode::DirtyState state) override
 
void markDirty ()
 
- Public Member Functions inherited from QSGRenderer
 QSGRenderer (QSGRenderContext *context)
 
virtual ~QSGRenderer ()
 
QMatrix4x4 currentProjectionMatrix () const
 
QMatrix4x4 currentModelViewMatrix () const
 
QMatrix4x4 currentCombinedMatrix () const
 
qreal currentOpacity () const
 
qreal determinant () const
 
void setDevicePixelRatio (qreal ratio)
 
qreal devicePixelRatio () const
 
QSGRenderContext * context () const
 
bool isMirrored () const
 
void renderScene () override
 Renders the scene.
 
void prepareSceneInline () override
 
void renderSceneInline () override
 
void nodeChanged (QSGNode *node, QSGNode::DirtyState state) override
 Updates internal data structures and emits the sceneGraphChanged() signal.
 
QSGNodeUpdater * nodeUpdater () const
 Returns the node updater that this renderer uses to update states in the scene graph.
 
void setNodeUpdater (QSGNodeUpdater *updater)
 Sets the node updater that this renderer uses to update states in the scene graph.
 
QSGMaterialShader::RenderState state (QSGMaterialShader::RenderState::DirtyStates dirty) const
 
virtual void setVisualizationMode (const QByteArray &)
 
virtual bool hasVisualizationModeWithContinuousUpdate () const
 
virtual void releaseCachedResources ()
 
void clearChangedFlag ()
 
QByteArray * currentUniformData () const
 
QRhiResourceUpdateBatch * currentResourceUpdateBatch () const
 
QRhi * currentRhi () const
 
void setRenderTarget (const QSGRenderTarget &rt)
 
const QSGRenderTarget & renderTarget () const
 
void setRenderPassRecordingCallbacks (QSGRenderContext::RenderPassCallback start, QSGRenderContext::RenderPassCallback end, void *userData)
 
- Public Member Functions inherited from QSGAbstractRenderer
 ~QSGAbstractRenderer () override
 
void setRootNode (QSGRootNode *node)
 Sets the node as the root of the QSGNode scene that you want to render.
 
QSGRootNode * rootNode () const
 Returns the root of the QSGNode scene.
 
void setDeviceRect (const QRect &rect)
 Sets rect as the geometry of the surface being rendered to.
 
void setDeviceRect (const QSize &size)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Sets the size of the surface being rendered to.
 
QRect deviceRect () const
 Returns the device rect of the surface being rendered to.
 
void setViewportRect (const QRect &rect)
 Sets rect as the geometry of the viewport to render on the surface.
 
void setViewportRect (const QSize &size)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Sets the size of the viewport to render on the surface.
 
QRect viewportRect () const
 Returns the rect of the viewport to render.
 
void setProjectionMatrixToRect (const QRectF &rect)
 Convenience method that calls setProjectionMatrix() with an orthographic matrix generated from rect.
 
void setProjectionMatrixToRect (const QRectF &rect, MatrixTransformFlags flags)
 Convenience method that calls setProjectionMatrix() with an orthographic matrix generated from rect.
 
void setProjectionMatrix (const QMatrix4x4 &matrix)
 Use matrix to project the QSGNode coordinates onto surface pixels.
 
void setProjectionMatrixWithNativeNDC (const QMatrix4x4 &matrix)
 
QMatrix4x4 projectionMatrix () const
 Returns the projection matrix.
 
QMatrix4x4 projectionMatrixWithNativeNDC () const
 
void setClearColor (const QColor &color)
 Use color to clear the framebuffer when clearMode() is set to QSGAbstractRenderer::ClearColorBuffer.
 
QColor clearColor () const
 Returns the color that clears the framebuffer at the beginning of the rendering.
 
void setClearMode (ClearMode mode)
 Defines which attachment of the framebuffer should be cleared before each scene render with the mode flag.
 
ClearMode clearMode () const
 Flags defining which attachment of the framebuffer will be cleared before each scene render.
 
virtual void renderScene ()=0
 Renders the scene.
 
virtual void prepareSceneInline ()
 
virtual void renderSceneInline ()
 
- 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.
 

Protected Member Functions

QRegion renderNodes (QPainter *painter)
 
void buildRenderList ()
 
QRegion optimizeRenderList ()
 
void setBackgroundColor (const QColor &color)
 
void setBackgroundRect (const QRect &rect, qreal devicePixelRatio)
 
QColor backgroundColor ()
 
QRect backgroundRect ()
 
bool isOpaque () const
 
const QVector< QSGSoftwareRenderableNode * > & renderableNodes () const
 
- Protected Member Functions inherited from QSGRenderer
virtual void render ()=0
 
virtual void prepareInline ()
 
virtual void renderInline ()
 
virtual void preprocess ()
 
void addNodesToPreprocess (QSGNode *node)
 
void removeNodesToPreprocess (QSGNode *node)
 
- Protected Member Functions inherited from QSGAbstractRenderer
 QSGAbstractRenderer (QObject *parent=nullptr)
 
virtual void nodeChanged (QSGNode *node, QSGNode::DirtyState state)=0
 
- 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)
 

Additional Inherited Members

- Public Types inherited from QSGAbstractRenderer
enum  ClearModeBit { ClearColorBuffer = 0x0001 , ClearDepthBuffer = 0x0002 , ClearStencilBuffer = 0x0004 }
 Used with setClearMode() to indicate which buffer should be cleared before the scene render. More...
 
enum  MatrixTransformFlag { MatrixTransformFlipY = 0x01 }
 Used with setProjectionMatrixToRect() to indicate the expectations towards the generated projection matrix. More...
 
- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 
- Signals inherited from QSGAbstractRenderer
void sceneGraphChanged ()
 This signal is emitted on the first modification of a node in the tree after the last scene render.
 
- 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 Attributes inherited from QSGRenderer
QMatrix4x4 m_current_projection_matrix
 
QMatrix4x4 m_current_projection_matrix_native_ndc
 
QMatrix4x4 m_current_model_view_matrix
 
qreal m_current_opacity
 
qreal m_current_determinant
 
qreal m_device_pixel_ratio
 
QSGRenderContext * m_context
 
QByteArray * m_current_uniform_data
 
QRhiResourceUpdateBatch * m_current_resource_update_batch
 
QRhi * m_rhi
 
QSGRenderTarget m_rt
 
struct { 
 
   QSGRenderContext::RenderPassCallback   start = nullptr 
 
   QSGRenderContext::RenderPassCallback   end = nullptr 
 
   void *   userData = nullptr 
 
} m_renderPassRecordingCallbacks 
 
- Protected Attributes inherited from QObject
QScopedPointer< QObjectData > 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 29 of file qsgabstractsoftwarerenderer_p.h.

Constructor & Destructor Documentation

◆ QSGAbstractSoftwareRenderer()

QT_BEGIN_NAMESPACE QSGAbstractSoftwareRenderer::QSGAbstractSoftwareRenderer ( QSGRenderContext *  context)

Definition at line 19 of file qsgabstractsoftwarerenderer.cpp.

References QSGSoftwareRenderableNode::SimpleRect.

◆ ~QSGAbstractSoftwareRenderer()

QSGAbstractSoftwareRenderer::~QSGAbstractSoftwareRenderer ( )
virtual

Definition at line 29 of file qsgabstractsoftwarerenderer.cpp.

References qDeleteAll().

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Member Function Documentation

◆ addNodeMapping()

void QSGAbstractSoftwareRenderer::addNodeMapping ( QSGNode *  node,
QSGSoftwareRenderableNode *  renderableNode 
)

Definition at line 50 of file qsgabstractsoftwarerenderer.cpp.

References QHash< Key, T >::insert(), and renderableNode().

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◆ appendRenderableNode()

void QSGAbstractSoftwareRenderer::appendRenderableNode ( QSGSoftwareRenderableNode *  node)

Definition at line 55 of file qsgabstractsoftwarerenderer.cpp.

◆ backgroundColor()

QColor QSGAbstractSoftwareRenderer::backgroundColor ( )
protected

Definition at line 221 of file qsgabstractsoftwarerenderer.cpp.

References QSGSimpleRectNode::color().

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◆ backgroundRect()

QRect QSGAbstractSoftwareRenderer::backgroundRect ( )
protected

Definition at line 226 of file qsgabstractsoftwarerenderer.cpp.

References QSGSimpleRectNode::rect(), and QRectF::toRect().

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◆ buildRenderList()

void QSGAbstractSoftwareRenderer::buildRenderList ( )
protected

Definition at line 110 of file qsgabstractsoftwarerenderer.cpp.

References renderableNode(), QSGAbstractRenderer::rootNode(), and QSGNodeVisitorEx::visitChildren().

Referenced by QSGSoftwareRenderer::render(), and QSGSoftwarePixmapRenderer::render().

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◆ isOpaque()

bool QSGAbstractSoftwareRenderer::isOpaque ( ) const
inlineprotected

Definition at line 53 of file qsgabstractsoftwarerenderer_p.h.

Referenced by QSGSoftwarePixmapRenderer::render().

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◆ markDirty()

void QSGAbstractSoftwareRenderer::markDirty ( )

Definition at line 304 of file qsgabstractsoftwarerenderer.cpp.

References QSGSimpleRectNode::rect(), and QRectF::toRect().

Referenced by QQuickRenderControlPrivate::grab(), and setBackgroundRect().

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◆ nodeChanged()

void QSGAbstractSoftwareRenderer::nodeChanged ( QSGNode *  node,
QSGNode::DirtyState  state 
)
overridevirtual

Implements QSGAbstractRenderer.

Definition at line 60 of file qsgabstractsoftwarerenderer.cpp.

References QSGNode::DirtyForceUpdate, QSGNode::DirtyGeometry, QSGNode::DirtyMaterial, QSGNode::DirtyMatrix, QSGNode::DirtyNodeAdded, QSGNode::DirtyNodeRemoved, QSGNode::DirtyOpacity, QSGNode::DirtySubtreeBlocked, QSGRenderer::nodeChanged(), state, and QSGSoftwareRenderableNodeUpdater::updateNodes().

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◆ optimizeRenderList()

QRegion QSGAbstractSoftwareRenderer::optimizeRenderList ( )
protected

Definition at line 120 of file qsgabstractsoftwarerenderer.cpp.

References QRegion::contains(), QRect::contains(), i, QRegion::isEmpty(), QRegion::isNull(), j, QSGSimpleRectNode::rect(), QRegion::subtracted(), QRectF::toAlignedRect(), and QRectF::toRect().

Referenced by QSGSoftwareRenderer::render(), and QSGSoftwarePixmapRenderer::render().

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◆ renderableNode()

QSGSoftwareRenderableNode * QSGAbstractSoftwareRenderer::renderableNode ( QSGNode *  node) const

Definition at line 39 of file qsgabstractsoftwarerenderer.cpp.

References QHash< Key, T >::value().

Referenced by addNodeMapping(), buildRenderList(), setBackgroundColor(), and setBackgroundRect().

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◆ renderableNodes()

const QVector< QSGSoftwareRenderableNode * > & QSGAbstractSoftwareRenderer::renderableNodes ( ) const
protected

Definition at line 45 of file qsgabstractsoftwarerenderer.cpp.

◆ renderNodes()

QRegion QSGAbstractSoftwareRenderer::renderNodes ( QPainter *  painter)
protected

Definition at line 89 of file qsgabstractsoftwarerenderer.cpp.

References painter.

Referenced by QSGSoftwareRenderer::render(), and QSGSoftwarePixmapRenderer::render().

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◆ setBackgroundColor()

void QSGAbstractSoftwareRenderer::setBackgroundColor ( const QColor &  color)
protected

Definition at line 202 of file qsgabstractsoftwarerenderer.cpp.

References QSGSimpleRectNode::color(), QSGSoftwareRenderableNode::markMaterialDirty(), renderableNode(), and QSGSimpleRectNode::setColor().

Referenced by QSGSoftwareRenderer::render(), and QSGSoftwarePixmapRenderer::render().

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◆ setBackgroundRect()

void QSGAbstractSoftwareRenderer::setBackgroundRect ( const QRect &  rect,
qreal  devicePixelRatio 
)
protected

Definition at line 210 of file qsgabstractsoftwarerenderer.cpp.

References QSGRenderer::devicePixelRatio(), markDirty(), QSGSoftwareRenderableNode::markGeometryDirty(), rect, QSGSimpleRectNode::rect(), renderableNode(), QSGSimpleRectNode::setRect(), and QRectF::toRect().

Referenced by QSGSoftwareRenderer::render(), and QSGSoftwarePixmapRenderer::render().

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The documentation for this class was generated from the following files: