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Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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The QSGDynamicTexture class serves as a baseclass for dynamically changing textures, such as content that is rendered to FBO's. More...
#include <qsgtexture.h>
Inheritance diagram for QSGDynamicTexture: Collaboration diagram for QSGDynamicTexture:Public Member Functions | |
| QSGDynamicTexture ()=default | |
| ~QSGDynamicTexture () override | |
| virtual bool | updateTexture ()=0 |
| Call this function to explicitly update the dynamic texture. | |
| Public Member Functions inherited from QSGTexture | |
| QSGTexture () | |
| Constructs the QSGTexture base class. | |
| ~QSGTexture () override | |
| Destroys the QSGTexture. | |
| virtual qint64 | comparisonKey () const =0 |
| Returns a key suitable for comparing textures. | |
| virtual QRhiTexture * | rhiTexture () const |
| virtual QSize | textureSize () const =0 |
| Returns the size of the texture in pixels. | |
| virtual bool | hasAlphaChannel () const =0 |
| Returns true if the texture data contains an alpha channel. | |
| virtual bool | hasMipmaps () const =0 |
| Returns true if the texture data contains mipmap levels. | |
| virtual QRectF | normalizedTextureSubRect () const |
| Returns the rectangle inside textureSize() that this texture represents in normalized coordinates. | |
| virtual bool | isAtlasTexture () const |
| Returns whether this texture is part of an atlas or not. | |
| virtual QSGTexture * | removedFromAtlas (QRhiResourceUpdateBatch *resourceUpdates=nullptr) const |
| This function returns a copy of the current texture which is removed from its atlas. | |
| virtual void | commitTextureOperations (QRhi *rhi, QRhiResourceUpdateBatch *resourceUpdates) |
| Call this function to enqueue image upload operations to resourceUpdates, in case there are any pending ones. | |
| void | setMipmapFiltering (Filtering filter) |
| Sets the mipmap sampling mode to filter. | |
| QSGTexture::Filtering | mipmapFiltering () const |
| Returns whether mipmapping should be used when sampling from this texture. | |
| void | setFiltering (Filtering filter) |
| Sets the sampling mode to filter. | |
| QSGTexture::Filtering | filtering () const |
| Returns the sampling mode to be used for this texture. | |
| void | setAnisotropyLevel (AnisotropyLevel level) |
| Sets the level of anisotropic filtering to level. | |
| QSGTexture::AnisotropyLevel | anisotropyLevel () const |
| Returns the anisotropy level in use for filtering this texture. | |
| void | setHorizontalWrapMode (WrapMode hwrap) |
| Sets the horizontal wrap mode to hwrap. | |
| QSGTexture::WrapMode | horizontalWrapMode () const |
| Returns the horizontal wrap mode to be used for this texture. | |
| void | setVerticalWrapMode (WrapMode vwrap) |
| Sets the vertical wrap mode to vwrap. | |
| QSGTexture::WrapMode | verticalWrapMode () const |
| Returns the vertical wrap mode to be used for this texture. | |
| QRectF | convertToNormalizedSourceRect (const QRectF &rect) const |
| Returns rect converted to normalized coordinates. | |
| 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. | |
| bool | moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL) |
Changes the thread affinity for this object and its children and returns true on success. | |
| 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::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer) |
| void | killTimer (int id) |
| Kills the timer with timer identifier, id. | |
| void | killTimer (Qt::TimerId id) |
| template<typename T > | |
| T | findChild (QAnyStringView aName, 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 (QAnyStringView 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 > | |
| T | findChild (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. | |
| 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 | |
| QSGDynamicTexture (QSGTexturePrivate &dd) | |
| Protected Member Functions inherited from QSGTexture | |
| QSGTexture (QSGTexturePrivate &dd) | |
| 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 QSGTexture | |
| enum | WrapMode { Repeat , ClampToEdge , MirroredRepeat } |
| Specifies how the sampler should treat texture coordinates. More... | |
| enum | Filtering { None , Nearest , Linear } |
| Specifies how sampling of texels should filter when texture coordinates are not pixel aligned. More... | |
| enum | AnisotropyLevel { AnisotropyNone , Anisotropy2x , Anisotropy4x , Anisotropy8x , Anisotropy16x } |
| Specifies the anisotropic filtering level to be used when the texture is not screen aligned. More... | |
| Public Slots inherited from QObject | |
| void | deleteLater () |
| \threadsafe | |
| 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 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) | |
The QSGDynamicTexture class serves as a baseclass for dynamically changing textures, such as content that is rendered to FBO's.
\inmodule QtQuick
To update the content of the texture, call updateTexture() explicitly.
Definition at line 99 of file qsgtexture.h.
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default |
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overridedefault |
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protected |
Definition at line 651 of file qsgtexture.cpp.
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pure virtual |
Call this function to explicitly update the dynamic texture.
The function returns true if the texture was changed as a resul of the update; otherwise returns false.
Implemented in QSGOpenVGLayer, QSGSoftwareLayer, and QSGRhiLayer.
Referenced by QQuick3DTexture::updateSpatialNode().
Here is the caller graph for this function:
1.10.0