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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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#include <qsgopenvgtexture.h>
Inheritance diagram for QSGOpenVGTexture: Collaboration diagram for QSGOpenVGTexture:Public Member Functions | |
| QSGOpenVGTexture (const QImage &image, uint flags) | |
| ~QSGOpenVGTexture () | |
| qint64 | comparisonKey () const override |
| Returns a key suitable for comparing textures. | |
| QSize | textureSize () const override |
| Returns the size of the texture in pixels. | |
| bool | hasAlphaChannel () const override |
| Returns true if the texture data contains an alpha channel. | |
| bool | hasMipmaps () const override |
| Returns true if the texture data contains mipmap levels. | |
| Public Member Functions inherited from QSGTexture | |
| QSGTexture () | |
| Constructs the QSGTexture base class. | |
| ~QSGTexture () override | |
| Destroys the QSGTexture. | |
| virtual QRhiTexture * | rhiTexture () const |
| 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. | |
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 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) | |
| 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) | |
Definition at line 13 of file qsgopenvgtexture.h.
| QT_BEGIN_NAMESPACE QSGOpenVGTexture::QSGOpenVGTexture | ( | const QImage & | image, |
| uint | flags ) |
Definition at line 9 of file qsgopenvgtexture.cpp.
References Q_UNUSED, and QSGOpenVGHelpers::qImageFormatToVGImageFormat().
Here is the call graph for this function:| QSGOpenVGTexture::~QSGOpenVGTexture | ( | ) |
Definition at line 20 of file qsgopenvgtexture.cpp.
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overridevirtual |
Returns a key suitable for comparing textures.
Typically used in QSGMaterial::compare() implementations.
Just comparing QSGTexture pointers is not always sufficient because two QSGTexture instances that refer to the same native texture object underneath should also be considered equal. Hence the need for this function.
Implementations of this function are not expected to, and should not create any graphics resources (native texture objects) in case there are none yet.
A QSGTexture that does not have a native texture object underneath is typically not equal to any other QSGTexture, so the return value has to be crafted accordingly. There are exceptions to this, in particular when atlasing is used (where multiple textures share the same atlas texture under the hood), that is then up to the subclass implementations to deal with as appropriate.
Implements QSGTexture.
Definition at line 25 of file qsgopenvgtexture.cpp.
Referenced by QSGOpenVGPainterNode::render(), and QSGOpenVGSpriteNode::render().
Here is the caller graph for this function:
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overridevirtual |
Returns true if the texture data contains an alpha channel.
Implements QSGTexture.
Definition at line 37 of file qsgopenvgtexture.cpp.
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overridevirtual |
Returns true if the texture data contains mipmap levels.
Implements QSGTexture.
Definition at line 77 of file qsgopenvgtexture.cpp.
|
overridevirtual |
Returns the size of the texture in pixels.
Implements QSGTexture.
Definition at line 30 of file qsgopenvgtexture.cpp.
1.10.0