Composition functionality for 2D nodes. More...

#include <kanzi/core.ui/node/node_compositor2d.hpp>

Classes
struct	ManagedCompositionTarget
	Managed composition target container. More...

struct	PerspectiveTransformParameters
	Perspective transform container. More...

Public Types
enum	ComposeChildrenBits { ChildrenCompositingBitCache, ChildrenCompositingBitRequest, ChildrenCompositingBitCount }
	Enum for children compositing bit flags. More...

enum	ComposeFinalBits { FinalCompositingBitCache, FinalCompositingBitForce, FinalCompositingBitOffscreen, FinalCompositingBitOpacity, FinalCompositingBitRequest, FinalCompositingBitCount }
	Enum for final result compositing bit flags. More...

enum	ComposeSelfBits { SelfCompositingBitCache, SelfCompositingBitRequest, SelfCompositingBitCount }
	Enum for self compositing bit flags. More...

Public Member Functions
	NodeCompositor2D ()
	Constructor. More...

tuple< TextureSharedPtr, bool >	beginFinalComposition (CompositionStack &compositionStack, CompositionManager *compositionManager, Vector2 requiredSize, bool alphaRequired, bool depthRequired, bool stencilRequired)
	Begin final composition. More...

void	endFinalComposition (CompositionStack &compositionStack)
	End final composition. More...

void	blitFinalComposition (Renderer3D &renderer, CompositionStack &compositionStack, CompositionManager *compositionManager, TextureSharedPtr renderTargetTexture, QuadDescription &backgroundQuad, const Matrix3x3 &transform, Vector2 quadSize)
	Blit final composition. More...

tuple< TextureSharedPtr, bool >	beginSelfComposition (CompositionStack &compositionStack, Vector2 requiredSize)
	Begin self composition. More...

void	endSelfComposition (CompositionStack &compositionStack)

void	blitSelfComposition (Renderer3D &renderer, CompositionStack &compositionStack, Texture &texture, QuadDescription &backgroundQuad, const Matrix3x3 &transform, Vector2 quadSize)
	Blit self composition. More...

tuple< TextureSharedPtr, bool >	beginChildrenComposition (CompositionStack &compositionStack, Vector2 requiredSize)
	Begin children composition. More...

void	endChildrenComposition (CompositionStack &compositionStack)

void	blitChildrenComposition (Renderer3D &renderer, CompositionStack &compositionStack, Texture &texture, QuadDescription &backgroundQuad, const Matrix3x3 &transform, Vector2 quadSize)
	Blit self composition. More...

void	renderCompositionQuad (Renderer3D &renderer, BrushRenderer &brushRenderer, const Texture &texture, QuadDescription &backgroundQuad, const Matrix4x4 &transform, Vector2 quadSize)
	Render composition quad. More...

void	createCompositionBrushRenderer (Node &node, Brush &brush, TextureSharedPtr texture)
	Create composition brush renderer. More...

TextureSharedPtr	getCacheChildrenCompositionTarget () const
	Access cache composition target for Node2D's children. More...

TextureSharedPtr	getCacheSelfCompositionTarget () const
	Access cache composition target for Node2D itself. More...

TextureSharedPtr	getFinalCompositionTarget () const
	Access 'final' managed composition target. More...

void	resizeUserCompositionTarget (Vector2 compositionSize)
	Resize automatic sizes in user composition target if necessary. More...

void	onDetached ()
	Run when node owning the compositor becomes detached. More...

void	restoreResources (Vector2 compositionSize)
	Restore resources. More...

void	updateRender (Node2D &node, Vector2 actualSize, bool alphaRequired, bool depthRequired, bool stencilRequired, float opacity, bool opaquenessHint, bool translucencyHint)
	Update for rendering, recreating composition targets and brush renderers as needed. More...

BrushRenderer *	getCacheChildrenBrushRenderer () const
	Access cache children brush renderer. More...

BrushRenderer *	getCacheSelfBrushRenderer () const
	Access cache self brush renderer. More...

BrushRenderer *	getCompositionBrushRenderer () const
	Access composition brush renderer. More...

bool	hasCompositionBrushRenderer () const
	Tell if composition brush renderer has been created. More...

bool	hasManagedCompositionTargetFinal () const
	Tell if managed composition target has been created. More...

void	setUserCompositionBrush (BrushSharedPtr brush)
	Set user composition brush. More...

Vector2	getUserCompositionTargetSize () const
	Get size of user composition target. More...

void	setUserCompositionTarget (TextureSharedPtr texture)
	Set user composition target. More...

bool	isCacheChildren () const
	Tell if cache children has been set. More...

void	setCacheChildren (bool enabled)
	Set cache children state. More...

bool	isCacheResult () const
	Tell if cache result has been set. More...

void	setCacheResult (bool enabled)
	Set cache result state. More...

bool	isCacheSelf () const
	Tell if cache self has been set. More...

void	setCacheSelf (bool enabled)
	Set cache self state. More...

void	invalidateCompositionBrush ()
	Invalidate composition brush. More...

bool	isCacheChildrenValid () const
	Tell if children cache is valid. More...

void	setCacheChildrenValid (bool valid)
	Mark self cache as valid. More...

bool	isCacheFinalValid () const
	Tell if final cache is valid. More...

void	setCacheFinalValid (bool valid)
	Mark final cache as valid. More...

bool	isCacheSelfValid () const
	Tell if self cache is valid. More...

void	setCacheSelfValid (bool valid)
	Mark self cache as valid. More...

bool	isChildrenCompositionRequired () const
	Tell if compositing children is required. More...

bool	isFinalCompositionRequired () const
	Tell if compositing final result is required. More...

bool	isSelfCompositionRequired () const
	Tell if compositing self is required. More...

bool	isFinalCompositionRequested () const
	Is compositing requested from code? More...

void	setFinalCompositionRequested (bool enabled)
	Set compositing request. More...

bool	isForceComposition () const
	Is force composition on? More...

void	setForceComposition (bool enabled)
	Set force composition. More...

bool	isOffscreenRendering () const
	Is offscreen rendering on? More...

void	setOffscreenRendering (bool enabled)
	Set offscreen rendering flag. More...

bool	isOpacityCompositionRequest () const
	Is Opacity composition request flag on? More...

void	setOpacityCompositionRequested (bool enabled)
	Set opacity composition request flag. More...

void	resetManagedCompositionTargetCacheChildren ()
	Reset cache children managed composition target. More...

void	resetManagedCompositionTargetCacheSelf ()
	Reset cache self managed composition target. More...

void	resetManagedCompositionTargetFinal ()
	Reset final managed composition target. More...

const Matrix4x4 *	getPerspectiveTransform () const
	Access perspective transform. More...

void	resetPerspectiveTransform ()
	Reset perspective transform. More...

void	setPerspectiveTransform (const Matrix4x4 &transform)
	Set perspective transform. More...

const Vector4 *	getWorldPerspectiveOffset () const
	Access world perspective transform. More...

void	resetWorldPerspectiveOffset ()
	Reset world perspective transform. More...

void	setWorldPerspectiveOffset (const Vector4 &offset)
	Set world perspective transform. More...

Protected Member Functions
bool	updatePersistentCompositionTarget (Node2D &node, ManagedCompositionTarget &managedCompositionTarget, Vector2 requiredSize, bool alphaRequired, bool depthRequired, bool stencilRequired)
	Update a managed composition target to match current requirements. More...

Protected Attributes
ManagedCompositionTarget	m_finalCompositionTarget
	Managed composition target for complete node composition. More...

ManagedCompositionTarget	m_cacheChildrenCompositionTarget
	Managed composition target for caching children. More...

ManagedCompositionTarget	m_cacheSelfCompositionTarget
	Managed composition target for caching node contents. More...

BrushSharedPtr	m_userCompositionBrush
	User-set composition brush. More...

TextureSharedPtr	m_userCompositionTarget
	User-set composition target. More...

CompositionBrushSharedPtr	m_cacheChildrenBrush
	Brush used to render cached children. More...

BrushRendererPtr	m_cacheChildrenBrushRenderer
	Cache children brush renderer. More...

CompositionBrushSharedPtr	m_cacheSelfBrush
	Brush used to render cached node itself. More...

BrushRendererPtr	m_cacheSelfBrushRenderer
	Cache self brush renderer. More...

CompositionBrushSharedPtr	m_managedCompositionBrush
	Composition brush managed by node. More...

BrushRendererPtr	m_compositionBrushRenderer
	Composition brush renderer. More...

unique_ptr< PerspectiveTransformParameters >	m_perspective
	Perspective components. More...

bitset< ChildrenCompositingBitCount >	m_childrenComposeMask
	Bit mask for states affecting whether or not the node should compose its children. More...

bitset< FinalCompositingBitCount >	m_finalComposeMask
	Bit mask for states affecting whether or not the node should compose itself and its children. More...

bitset< SelfCompositingBitCount >	m_selfComposeMask
	Bit mask for states affecting whether or not the node should compose itself. More...

Detailed Description

Composition functionality for 2D nodes.

Member Enumeration Documentation

enum kanzi::NodeCompositor2D::ComposeChildrenBits

Enum for children compositing bit flags.

Enumerator
ChildrenCompositingBitCache	Caching.
ChildrenCompositingBitRequest	Request from code.
ChildrenCompositingBitCount	Number of options.

enum kanzi::NodeCompositor2D::ComposeFinalBits

Enum for final result compositing bit flags.

Enumerator
FinalCompositingBitCache	Caching.
FinalCompositingBitForce	Force composition from property.
FinalCompositingBitOffscreen	Offscreen rendering.
FinalCompositingBitOpacity	Composition due to opacity and children.
FinalCompositingBitRequest	Request from code.
FinalCompositingBitCount	Number of options.

enum kanzi::NodeCompositor2D::ComposeSelfBits

Enum for self compositing bit flags.

Enumerator
SelfCompositingBitCache	Caching.
SelfCompositingBitRequest	Request from code.
SelfCompositingBitCount	Number of options.

Constructor & Destructor Documentation

kanzi::NodeCompositor2D::NodeCompositor2D ( )

inline

Constructor.

Member Function Documentation

bool kanzi::NodeCompositor2D::updatePersistentCompositionTarget	(	Node2D &	node,
		ManagedCompositionTarget &	managedCompositionTarget,
		Vector2	requiredSize,
		bool	alphaRequired,
		bool	depthRequired,
		bool	stencilRequired
	)

protected

Update a managed composition target to match current requirements.

If the composition target does not exist or the settings required from it have been changed, it is (re)created.

Parameters

node	Node to attach to.
managedCompositionTarget	Existing composition target container.
requiredSize	Size required of the composition target.
alphaRequired	Alpha requirement.
depthRequired	Depth requirement.
stencilRequired	Stencil requirement.

Returns: True if composition target was updated, false if not.

tuple<TextureSharedPtr, bool> kanzi::NodeCompositor2D::beginFinalComposition	(	CompositionStack &	compositionStack,
		CompositionManager *	compositionManager,
		Vector2	requiredSize,
		bool	alphaRequired,
		bool	depthRequired,
		bool	stencilRequired
	)

Begin final composition.

Parameters

compositionStack	Composition stack to use.
compositionManager	Composition manager to use.
requiredSize	Size required of the composition target.
alphaRequired	Alpha requirement.
depthRequired	Depth requirement.
stencilRequired	Stencil requirement.

Returns: Tuple of render target to use and whether or not to perform actual render.

void kanzi::NodeCompositor2D::endFinalComposition ( CompositionStack & compositionStack )

End final composition.

Parameters

compositionStack Composition stack to use.

void kanzi::NodeCompositor2D::blitFinalComposition	(	Renderer3D &	renderer,
		CompositionStack &	compositionStack,
		CompositionManager *	compositionManager,
		TextureSharedPtr	renderTargetTexture,
		QuadDescription &	backgroundQuad,
		const Matrix3x3 &	transform,
		Vector2	quadSize
	)

Blit final composition.

Parameters

renderer	Renderer to use.
compositionStack	Composition stack to use.
compositionManager	Composition manager to use.
renderTargetTexture	Render target texture used.
backgroundQuad	Clip quad for background area.
transform	Transform used for rendering.
quadSize	Rendered quad size.

tuple<TextureSharedPtr, bool> kanzi::NodeCompositor2D::beginSelfComposition	(	CompositionStack &	compositionStack,
		Vector2	requiredSize
	)

Begin self composition.

Parameters

compositionStack	Composition stack to use.
requiredSize	Size required of the composition target.

Returns: Tuple of render target to use and whether or not to perform actual render.

void kanzi::NodeCompositor2D::endSelfComposition ( CompositionStack & compositionStack )

Parameters

compositionStack Composition stack to use. Begin self composition.

void kanzi::NodeCompositor2D::blitSelfComposition	(	Renderer3D &	renderer,
		CompositionStack &	compositionStack,
		Texture &	texture,
		QuadDescription &	backgroundQuad,
		const Matrix3x3 &	transform,
		Vector2	quadSize
	)

Blit self composition.

Parameters

renderer	Renderer to use.
compositionStack	Composition stack to use.
texture	Texture used.
backgroundQuad	Clip quad for background area.
transform	Transform used for rendering.
quadSize	Rendered quad size.

tuple<TextureSharedPtr, bool> kanzi::NodeCompositor2D::beginChildrenComposition	(	CompositionStack &	compositionStack,
		Vector2	requiredSize
	)

Begin children composition.

Parameters

compositionStack	Composition stack to use.
requiredSize	Size required of the composition target.

Returns: Tuple of render target to use and whether or not to perform actual render.

void kanzi::NodeCompositor2D::endChildrenComposition ( CompositionStack & compositionStack )

Parameters

compositionStack Composition stack to use. Begin self composition.

void kanzi::NodeCompositor2D::blitChildrenComposition	(	Renderer3D &	renderer,
		CompositionStack &	compositionStack,
		Texture &	texture,
		QuadDescription &	backgroundQuad,
		const Matrix3x3 &	transform,
		Vector2	quadSize
	)

Blit self composition.

Parameters

renderer	Renderer to use.
compositionStack	Composition stack to use.
texture	Texture used.
backgroundQuad	Clip quad for background area.
transform	Transform used for rendering.
quadSize	Rendered quad size.

void kanzi::NodeCompositor2D::renderCompositionQuad	(	Renderer3D &	renderer,
		BrushRenderer &	brushRenderer,
		const Texture &	texture,
		QuadDescription &	backgroundQuad,
		const Matrix4x4 &	transform,
		Vector2	quadSize
	)

Render composition quad.

Parameters

renderer	Renderer to use.
compositionStack	Composition stack to use.
texture	Texture used.
backgroundQuad	Clip quad for background area.
renderTransform	Transform used for rendering.
quadSize	Rendered quad size.

void kanzi::NodeCompositor2D::createCompositionBrushRenderer	(	Node &	node,
		Brush &	brush,
		TextureSharedPtr	texture
	)

Create composition brush renderer.

Parameters

node	Node to attach to.
brush	Brush to create from.
texture	Texture to use.

TextureSharedPtr kanzi::NodeCompositor2D::getCacheChildrenCompositionTarget ( ) const

Access cache composition target for Node2D's children.

Will only function if Node2D has been transformed. Will deploy the composition target if necessary.

Returns: Render target pointer.

TextureSharedPtr kanzi::NodeCompositor2D::getCacheSelfCompositionTarget ( ) const

Access cache composition target for Node2D itself.

Will only function if Node2D has been transformed. Will deploy the composition target if necessary.

Returns: Render target pointer.

TextureSharedPtr kanzi::NodeCompositor2D::getFinalCompositionTarget ( ) const

Access 'final' managed composition target.

Will deploy the composition target if necessary.

void kanzi::NodeCompositor2D::resizeUserCompositionTarget ( Vector2 compositionSize )

Resize automatic sizes in user composition target if necessary.

Parameters

compositionSize Composition size to resize to.

void kanzi::NodeCompositor2D::onDetached ( )

Run when node owning the compositor becomes detached.

void kanzi::NodeCompositor2D::restoreResources ( Vector2 compositionSize )

Restore resources.

Will restore all GL resources and resize render targets with automatic size.

Parameters

compositionSize Composition size to resize to.

void kanzi::NodeCompositor2D::updateRender	(	Node2D &	node,
		Vector2	actualSize,
		bool	alphaRequired,
		bool	depthRequired,
		bool	stencilRequired,
		float	opacity,
		bool	opaquenessHint,
		bool	translucencyHint
	)

Update for rendering, recreating composition targets and brush renderers as needed.

Parameters

node	Node to attach to.
actualSize	Size required of the composition target.
alphaRequired	Alpha requirement.
depthRequired	Depth requirement.
stencilRequired	Stencil requirement.
opacity	Opacity value that should be used for rendering.
opaquenessHint	Should opaque rendering especially be used?
translucencyHint	Should translucent rendering especially be used?

BrushRenderer* kanzi::NodeCompositor2D::getCacheChildrenBrushRenderer ( ) const

inline

Access cache children brush renderer.

BrushRenderer* kanzi::NodeCompositor2D::getCacheSelfBrushRenderer ( ) const

inline

Access cache self brush renderer.

BrushRenderer* kanzi::NodeCompositor2D::getCompositionBrushRenderer ( ) const

inline

Access composition brush renderer.

bool kanzi::NodeCompositor2D::hasCompositionBrushRenderer ( ) const

inline

Tell if composition brush renderer has been created.

bool kanzi::NodeCompositor2D::hasManagedCompositionTargetFinal ( ) const

inline

Tell if managed composition target has been created.

void kanzi::NodeCompositor2D::setUserCompositionBrush ( BrushSharedPtr brush )

inline

Set user composition brush.

Vector2 kanzi::NodeCompositor2D::getUserCompositionTargetSize ( ) const

inline

Get size of user composition target.

Returns: Size of composition target or zero vector.

void kanzi::NodeCompositor2D::setUserCompositionTarget ( TextureSharedPtr texture )

inline

Set user composition target.

bool kanzi::NodeCompositor2D::isCacheChildren ( ) const

inline

Tell if cache children has been set.

void kanzi::NodeCompositor2D::setCacheChildren ( bool enabled )

inline

Set cache children state.

Parameters

enabled New cache children state.

bool kanzi::NodeCompositor2D::isCacheResult ( ) const

inline

Tell if cache result has been set.

void kanzi::NodeCompositor2D::setCacheResult ( bool enabled )

inline

Set cache result state.

Parameters

enabled New cache result state.

bool kanzi::NodeCompositor2D::isCacheSelf ( ) const

inline

Tell if cache self has been set.

void kanzi::NodeCompositor2D::setCacheSelf ( bool enabled )

inline

Set cache self state.

Parameters

enabled New cache children state.

void kanzi::NodeCompositor2D::invalidateCompositionBrush ( )

inline

Invalidate composition brush.

bool kanzi::NodeCompositor2D::isCacheChildrenValid ( ) const

inline

Tell if children cache is valid.

void kanzi::NodeCompositor2D::setCacheChildrenValid ( bool valid )

inline

Mark self cache as valid.

Parameters

valid New validity status.

bool kanzi::NodeCompositor2D::isCacheFinalValid ( ) const

inline

Tell if final cache is valid.

void kanzi::NodeCompositor2D::setCacheFinalValid ( bool valid )

inline

Mark final cache as valid.

Parameters

valid New validity status.

bool kanzi::NodeCompositor2D::isCacheSelfValid ( ) const

inline

Tell if self cache is valid.

void kanzi::NodeCompositor2D::setCacheSelfValid ( bool valid )

inline

Mark self cache as valid.

Parameters

valid New validity status.

bool kanzi::NodeCompositor2D::isChildrenCompositionRequired ( ) const

inline

Tell if compositing children is required.

bool kanzi::NodeCompositor2D::isFinalCompositionRequired ( ) const

inline

Tell if compositing final result is required.

bool kanzi::NodeCompositor2D::isSelfCompositionRequired ( ) const

inline

Tell if compositing self is required.

bool kanzi::NodeCompositor2D::isFinalCompositionRequested ( ) const

inline

Is compositing requested from code?

void kanzi::NodeCompositor2D::setFinalCompositionRequested ( bool enabled )

inline

Set compositing request.

bool kanzi::NodeCompositor2D::isForceComposition ( ) const

inline

Is force composition on?

void kanzi::NodeCompositor2D::setForceComposition ( bool enabled )

inline

Set force composition.

bool kanzi::NodeCompositor2D::isOffscreenRendering ( ) const

inline

Is offscreen rendering on?

void kanzi::NodeCompositor2D::setOffscreenRendering ( bool enabled )

inline

Set offscreen rendering flag.

bool kanzi::NodeCompositor2D::isOpacityCompositionRequest ( ) const

inline

Is Opacity composition request flag on?

void kanzi::NodeCompositor2D::setOpacityCompositionRequested ( bool enabled )

inline

Set opacity composition request flag.

void kanzi::NodeCompositor2D::resetManagedCompositionTargetCacheChildren ( )

inline

Reset cache children managed composition target.

void kanzi::NodeCompositor2D::resetManagedCompositionTargetCacheSelf ( )

inline

Reset cache self managed composition target.

void kanzi::NodeCompositor2D::resetManagedCompositionTargetFinal ( )

inline

Reset final managed composition target.

const Matrix4x4* kanzi::NodeCompositor2D::getPerspectiveTransform ( ) const

inline

Access perspective transform.

Returns: Perspective transform set, may be null if not set.

void kanzi::NodeCompositor2D::resetPerspectiveTransform ( )

inline

Reset perspective transform.

void kanzi::NodeCompositor2D::setPerspectiveTransform ( const Matrix4x4 & transform )

inline

Set perspective transform.

Parameters

transform Perspective transform to use.

const Vector4* kanzi::NodeCompositor2D::getWorldPerspectiveOffset ( ) const

inline

Access world perspective transform.

Returns: Perspective transform set, may be null if not set.

void kanzi::NodeCompositor2D::resetWorldPerspectiveOffset ( )

inline

Reset world perspective transform.

void kanzi::NodeCompositor2D::setWorldPerspectiveOffset ( const Vector4 & offset )

inline

Set world perspective transform.

Parameters

transform World perspective transform to use.

Member Data Documentation

ManagedCompositionTarget kanzi::NodeCompositor2D::m_finalCompositionTarget

protected

Managed composition target for complete node composition.

ManagedCompositionTarget kanzi::NodeCompositor2D::m_cacheChildrenCompositionTarget

protected

Managed composition target for caching children.

ManagedCompositionTarget kanzi::NodeCompositor2D::m_cacheSelfCompositionTarget

protected

Managed composition target for caching node contents.

BrushSharedPtr kanzi::NodeCompositor2D::m_userCompositionBrush

protected

User-set composition brush.

TextureSharedPtr kanzi::NodeCompositor2D::m_userCompositionTarget

protected

User-set composition target.

CompositionBrushSharedPtr kanzi::NodeCompositor2D::m_cacheChildrenBrush

protected

Brush used to render cached children.

BrushRendererPtr kanzi::NodeCompositor2D::m_cacheChildrenBrushRenderer

protected

Cache children brush renderer.

CompositionBrushSharedPtr kanzi::NodeCompositor2D::m_cacheSelfBrush

protected

Brush used to render cached node itself.

BrushRendererPtr kanzi::NodeCompositor2D::m_cacheSelfBrushRenderer

protected

Cache self brush renderer.

CompositionBrushSharedPtr kanzi::NodeCompositor2D::m_managedCompositionBrush

protected

Composition brush managed by node.

BrushRendererPtr kanzi::NodeCompositor2D::m_compositionBrushRenderer

protected

Composition brush renderer.

unique_ptr<PerspectiveTransformParameters> kanzi::NodeCompositor2D::m_perspective

protected

Perspective components.

bitset<ChildrenCompositingBitCount> kanzi::NodeCompositor2D::m_childrenComposeMask

protected

Bit mask for states affecting whether or not the node should compose its children.

bitset<FinalCompositingBitCount> kanzi::NodeCompositor2D::m_finalComposeMask

protected

Bit mask for states affecting whether or not the node should compose itself and its children.

bitset<SelfCompositingBitCount> kanzi::NodeCompositor2D::m_selfComposeMask

protected

Bit mask for states affecting whether or not the node should compose itself.

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

kanzi/core.ui/node/node_compositor2d.hpp

Classes

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation