#include <qsgopenvgcontext_p.h>

Inheritance diagram for QSGOpenVGRenderContext:

Collaboration diagram for QSGOpenVGRenderContext:

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	initialize (const InitParams *params)

virtual void	invalidate ()

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	renderNextFrame (QSGRenderer *renderer)=0

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.

QSGTexture *	textureForFactory (QQuickTextureFactory factory, QQuickWindow window)
	Factory function for the scene graph renderers.

virtual QSGTexture *	createTexture (const QImage &image, uint flags=CreateTexture_Alpha) const =0

virtual QSGRenderer *	createRenderer (QSGRendererInterface::RenderMode renderMode=QSGRendererInterface::RenderMode2D)=0

virtual QSGTexture *	compressedTextureForFactory (const QSGCompressedTextureFactory *) const
	Return the texture corresponding to a texture factory.

virtual int	maxTextureSize () const =0

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.

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 QSGRendererInterface
virtual	~QSGRendererInterface ()

virtual GraphicsApi	graphicsApi () const =0
	Returns the graphics API that is in use by the Qt Quick scenegraph.

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.

virtual ShaderType	shaderType () const =0

virtual ShaderCompilationTypes	shaderCompilationType () const =0

virtual ShaderSourceTypes	shaderSourceType () const =0

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 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 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< QString, 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)

Detailed Description

Definition at line 18 of file qsgopenvgcontext_p.h.

Constructor & Destructor Documentation

◆ QSGOpenVGRenderContext()

QT_BEGIN_NAMESPACE QSGOpenVGRenderContext::QSGOpenVGRenderContext ( QSGContext * context )

Definition at line 27 of file qsgopenvgcontext.cpp.

Member Function Documentation

◆ createRenderer()

QSGRenderer * QSGOpenVGRenderContext::createRenderer ( QSGRendererInterface::RenderMode renderMode = QSGRendererInterface::RenderMode2D )

overridevirtual

Implements QSGRenderContext.

Definition at line 73 of file qsgopenvgcontext.cpp.

◆ createTexture()

QSGTexture * QSGOpenVGRenderContext::createTexture	(	const QImage &	image,
		uint	flags
	)		const

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().

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◆ glyphCache()

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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◆ graphicsApi()

QSGRendererInterface::GraphicsApi QSGOpenVGRenderContext::graphicsApi ( ) const

overridevirtual

Returns the graphics API that is in use by the Qt Quick scenegraph.

Note: This function can be called on any thread.

Implements QSGRendererInterface.

Definition at line 159 of file qsgopenvgcontext.cpp.

References QSGRendererInterface::OpenVG.

◆ initialize()

void QSGOpenVGRenderContext::initialize ( const QSGRenderContext::InitParams * params )

overridevirtual

Reimplemented from QSGRenderContext.

Definition at line 35 of file qsgopenvgcontext.cpp.

References QSGOpenVGRenderContext::InitParams::context, emit, INIT_PARAMS_MAGIC, QSGRenderContext::initialize(), QSGRenderContext::initialized(), qFatal, and QSGOpenVGRenderContext::InitParams::sType.

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◆ invalidate()

void QSGOpenVGRenderContext::invalidate ( )

overridevirtual

Reimplemented from QSGRenderContext.

Definition at line 46 of file qsgopenvgcontext.cpp.

References emit, QSGRenderContext::invalidate(), and QSGRenderContext::invalidated().

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◆ maxTextureSize()

int QSGOpenVGRenderContext::maxTextureSize ( ) const

overridevirtual

Implements QSGRenderContext.

Definition at line 139 of file qsgopenvgcontext.cpp.

References qMin().

Referenced by createTexture().

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◆ renderNextFrame()

void QSGOpenVGRenderContext::renderNextFrame ( QSGRenderer * renderer )

overridevirtual

Implements QSGRenderContext.

Definition at line 55 of file qsgopenvgcontext.cpp.

References renderer.

◆ shaderCompilationType()

QSGRendererInterface::ShaderCompilationTypes QSGOpenVGRenderContext::shaderCompilationType ( ) const

overridevirtual

Returns: a bitmask of the shader compilation approaches supported by the Qt Quick backend the application is using.

Note: This function can be called on any thread.

See also: QtQuick::GraphicsInfo

Implements QSGRendererInterface.

Definition at line 169 of file qsgopenvgcontext.cpp.

◆ shaderSourceType()

QSGRendererInterface::ShaderSourceTypes QSGOpenVGRenderContext::shaderSourceType ( ) const

overridevirtual

Returns: a bitmask of the supported ways of providing shader sources in ShaderEffect items.

Note: This function can be called on any thread.

See also: QtQuick::GraphicsInfo

Implements QSGRendererInterface.

Definition at line 174 of file qsgopenvgcontext.cpp.

◆ shaderType()

QSGRendererInterface::ShaderType QSGOpenVGRenderContext::shaderType ( ) const

overridevirtual

Returns: the shading language supported by the Qt Quick backend the application is using.

Note: This function can be called on any thread.

See also: QtQuick::GraphicsInfo

Implements QSGRendererInterface.

Definition at line 164 of file qsgopenvgcontext.cpp.

References QSGRendererInterface::UnknownShadingLanguage.

◆ vgContext()

QOpenVGContext * QSGOpenVGRenderContext::vgContext ( )

inline

Definition at line 43 of file qsgopenvgcontext_p.h.

Member Data Documentation

◆ INIT_PARAMS_MAGIC

const int QSGOpenVGRenderContext::INIT_PARAMS_MAGIC = 0x51E

static

Definition at line 24 of file qsgopenvgcontext_p.h.

Referenced by initialize().

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

qtdeclarative/src/plugins/scenegraph/openvg/qsgopenvgcontext_p.h
qtdeclarative/src/plugins/scenegraph/openvg/qsgopenvgcontext.cpp

Classes

Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QSGOpenVGRenderContext()

Member Function Documentation

◆ createRenderer()

◆ createTexture()

◆ glyphCache()

◆ graphicsApi()

◆ initialize()

◆ invalidate()

◆ maxTextureSize()

◆ renderNextFrame()

◆ shaderCompilationType()

◆ shaderSourceType()

◆ shaderType()

◆ vgContext()

Member Data Documentation

◆ INIT_PARAMS_MAGIC