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 <qsgopenvgcontext_p.h>
Classes | |
struct | InitParams |
Public Member Functions | |
QSGOpenVGRenderContext (QSGContext *context) | |
void | initialize (const QSGRenderContext::InitParams *params) override |
void | invalidate () override |
void | renderNextFrame (QSGRenderer *renderer) override |
QSGTexture * | createTexture (const QImage &image, uint flags) const override |
QSGRenderer * | createRenderer (QSGRendererInterface::RenderMode renderMode=QSGRendererInterface::RenderMode2D) override |
int | maxTextureSize () const override |
GraphicsApi | graphicsApi () const override |
Returns the graphics API that is in use by the Qt Quick scenegraph. | |
ShaderType | shaderType () const override |
ShaderCompilationTypes | shaderCompilationType () const override |
ShaderSourceTypes | shaderSourceType () const override |
QOpenVGContext * | vgContext () |
QSGOpenVGFontGlyphCache * | glyphCache (const QRawFont &rawFont) |
Public Member Functions inherited from QSGRenderContext | |
QSGRenderContext (QSGContext *context) | |
~QSGRenderContext () override | |
QSGContext * | sceneGraphContext () const |
virtual bool | isValid () const |
virtual void | prepareSync (qreal devicePixelRatio, QRhiCommandBuffer *cb, const QQuickGraphicsConfiguration &config) |
virtual void | beginNextFrame (QSGRenderer *renderer, const QSGRenderTarget &renderTarget, RenderPassCallback mainPassRecordingStart, RenderPassCallback mainPassRecordingEnd, void *callbackUserData) |
virtual void | endNextFrame (QSGRenderer *renderer) |
virtual void | endSync () |
virtual void | preprocess () |
Do necessary preprocessing before the frame. | |
virtual void | invalidateGlyphCaches () |
virtual QSGDistanceFieldGlyphCache * | distanceFieldGlyphCache (const QRawFont &font, int renderTypeQuality) |
Factory function for scene graph backends of the distance-field glyph cache. | |
virtual QSGCurveGlyphAtlas * | curveGlyphAtlas (const QRawFont &font) |
Factory function for curve atlases that can be used to provide geometry for the curve renderer for a given font. | |
QSGTexture * | textureForFactory (QQuickTextureFactory *factory, QQuickWindow *window) |
Factory function for the scene graph renderers. | |
virtual QSGTexture * | compressedTextureForFactory (const QSGCompressedTextureFactory *) const |
Return the texture corresponding to a texture factory. | |
void | unregisterFontengineForCleanup (QFontEngine *engine) |
void | registerFontengineForCleanup (QFontEngine *engine) |
virtual QRhi * | rhi () const |
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 . | |
Public Member Functions inherited from QSGRendererInterface | |
virtual | ~QSGRendererInterface () |
virtual void * | getResource (QQuickWindow *window, Resource resource) const |
Queries a graphics resource in window. | |
virtual void * | getResource (QQuickWindow *window, const char *resource) const |
Queries a graphics resource. | |
Static Public Attributes | |
static const int | INIT_PARAMS_MAGIC = 0x51E |
Additional Inherited Members | |
Public Types inherited from QSGRenderContext | |
enum | CreateTextureFlags { CreateTexture_Alpha = 0x1 , CreateTexture_Atlas = 0x2 , CreateTexture_Mipmap = 0x4 } |
using | RenderPassCallback = void (*)(void *) |
Public Types inherited from QSGRendererInterface | |
enum | GraphicsApi { Unknown , Software , OpenVG , OpenGL , Direct3D11 , Vulkan , Metal , Null , Direct3D12 , OpenGLRhi = OpenGL , Direct3D11Rhi = Direct3D11 , VulkanRhi = Vulkan , MetalRhi = Metal , NullRhi = Null } |
\value Unknown An unknown graphics API is in use \value Software The Qt Quick 2D Renderer is in use \value OpenVG OpenVG via EGL \value [since 5.14] OpenGL OpenGL ES 2.0 or higher via a graphics abstraction layer. More... | |
enum | Resource { DeviceResource , CommandQueueResource , CommandListResource , PainterResource , RhiResource , RhiSwapchainResource , RhiRedirectCommandBuffer , RhiRedirectRenderTarget , PhysicalDeviceResource , OpenGLContextResource , DeviceContextResource , CommandEncoderResource , VulkanInstanceResource , RenderPassResource , RedirectPaintDevice , GraphicsQueueFamilyIndexResource , GraphicsQueueIndexResource } |
\value DeviceResource The resource is a pointer to the graphics device, when applicable. More... | |
enum | ShaderType { UnknownShadingLanguage , GLSL , HLSL , RhiShader } |
\value UnknownShadingLanguage Not yet known due to no window and scenegraph associated \value GLSL GLSL or GLSL ES \value HLSL HLSL \value [since 5.14] RhiShader Consumes QShader instances containing shader variants for multiple target languages and intermediate formats. More... | |
enum | ShaderCompilationType { RuntimeCompilation = 0x01 , OfflineCompilation = 0x02 } |
\value RuntimeCompilation Runtime compilation of shader source code is supported \value OfflineCompilation Pre-compiled bytecode supported More... | |
enum | ShaderSourceType { ShaderSourceString = 0x01 , ShaderSourceFile = 0x02 , ShaderByteCode = 0x04 } |
\value ShaderSourceString Shader source can be provided as a string in the corresponding properties of ShaderEffect More... | |
enum | RenderMode { RenderMode2D , RenderMode2DNoDepthBuffer , RenderMode3D } |
\value RenderMode2D Normal 2D rendering \value RenderMode2DNoDepthBuffer Normal 2D rendering with depth buffer disabled \value RenderMode3D Scene is rendered as part of a 3D graph More... | |
Public Slots inherited from QSGRenderContext | |
void | textureFactoryDestroyed (QObject *o) |
Public Slots inherited from QObject | |
void | deleteLater () |
\threadsafe | |
Signals inherited from QSGRenderContext | |
void | initialized () |
void | invalidated () |
void | releaseCachedResourcesRequested () |
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) |
Static Public Member Functions inherited from QSGRendererInterface | |
static bool | isApiRhiBased (GraphicsApi api) |
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 QSGRenderContext | |
QPointer< QSGContext > | m_sg |
QMutex | m_mutex |
QHash< QObject *, QSGTexture * > | m_textures |
QSet< QSGTexture * > | m_texturesToDelete |
QHash< FontKey, QSGDistanceFieldGlyphCache * > | m_glyphCaches |
QHash< QFontEngine *, int > | m_fontEnginesToClean |
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 18 of file qsgopenvgcontext_p.h.
QT_BEGIN_NAMESPACE QSGOpenVGRenderContext::QSGOpenVGRenderContext | ( | QSGContext * | context | ) |
Definition at line 27 of file qsgopenvgcontext.cpp.
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overridevirtual |
Implements QSGRenderContext.
Definition at line 73 of file qsgopenvgcontext.cpp.
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overridevirtual |
Implements QSGRenderContext.
Definition at line 60 of file qsgopenvgcontext.cpp.
References Qt::FastTransformation, QImage::height(), Qt::IgnoreAspectRatio, maxTextureSize(), qMin(), QImage::scaled(), and QImage::width().
QSGOpenVGFontGlyphCache * QSGOpenVGRenderContext::glyphCache | ( | const QRawFont & | rawFont | ) |
Definition at line 179 of file qsgopenvgcontext.cpp.
References cache, QSGOpenVGFontGlyphCacheManager::cache(), and QSGOpenVGFontGlyphCacheManager::insertCache().
Referenced by QSGOpenVGGlyphNode::setGlyphs().
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overridevirtual |
Returns the graphics API that is in use by the Qt Quick scenegraph.
Implements QSGRendererInterface.
Definition at line 159 of file qsgopenvgcontext.cpp.
References QSGRendererInterface::OpenVG.
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overridevirtual |
Reimplemented from QSGRenderContext.
Definition at line 35 of file qsgopenvgcontext.cpp.
References emit, INIT_PARAMS_MAGIC, QSGRenderContext::initialize(), QSGRenderContext::initialized(), and qFatal.
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overridevirtual |
Reimplemented from QSGRenderContext.
Definition at line 46 of file qsgopenvgcontext.cpp.
References emit, QSGRenderContext::invalidate(), and QSGRenderContext::invalidated().
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overridevirtual |
Implements QSGRenderContext.
Definition at line 139 of file qsgopenvgcontext.cpp.
References qMin().
Referenced by createTexture().
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overridevirtual |
Implements QSGRenderContext.
Definition at line 55 of file qsgopenvgcontext.cpp.
References renderer.
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overridevirtual |
Implements QSGRendererInterface.
Definition at line 169 of file qsgopenvgcontext.cpp.
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overridevirtual |
Implements QSGRendererInterface.
Definition at line 174 of file qsgopenvgcontext.cpp.
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overridevirtual |
Implements QSGRendererInterface.
Definition at line 164 of file qsgopenvgcontext.cpp.
References QSGRendererInterface::UnknownShadingLanguage.
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inline |
Definition at line 43 of file qsgopenvgcontext_p.h.
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static |
Definition at line 24 of file qsgopenvgcontext_p.h.
Referenced by initialize().