Composition stack for managing current render context. More...

#include <kanzi/core.ui/graphics2d/composition_stack.hpp>

Public Member Functions
void	apply2D (Renderer3D &renderer)
	Applies the topmost render settings for 2D rendering. More...

void	apply3D (Renderer3D &renderer)
	Applies the topmost render settings for 3D rendering. More...

void	applyColorBlend2D (Renderer &renderer)
	Applies the topmost color/blend stack state. More...

void	applyColorBlend3D (Renderer &renderer)
	Applies the topmost color/blend stack state. More...

void	applyComposition2D (Renderer &renderer)
	Applies the topmost composition stack state for 2D rendering. More...

void	applyComposition3D (Renderer &renderer)
	Applies the topmost composition stack state for 3D rendering. More...

void	applyDepthStencil2D (Renderer &renderer)
	Applies the topmost depth/stencil stack state. More...

void	applyDepthStencil3D (Renderer &renderer)
	Applies the topmost depth/stencil stack state. More...

void	applyPerspective2D (Renderer3D &renderer, const Matrix4x4 &cameraMatrix, const Matrix4x4 &projectionMatrix)
	Applies the topmost render settings for 2D perspective rendering. More...

void	applyRasterization2D (Renderer &renderer)
	Applies the topmost rasterization stack state. More...

void	applyRasterization3D (Renderer &renderer)
	Applies the topmost rasterization stack state. More...

	CompositionStack ()
	Constructor. More...

	CompositionStack (NativeFramebufferHandle handle, Vector2 size)
	Constructor. More...

	CompositionStack (NativeFramebufferHandle handle, Vector2 size, Vector4 viewport, optional< Vector4 > scissor)
	Constructor. More...

RenderPassSharedPtr	getDebugComposer () const
	Get the debug composer used by this render context stack. More...

void	invalidateAllState ()
	Invalidates all distinct stacks. More...

void	invalidateColorBlend ()
	Invalidates color/blend stack state. More...

void	invalidateComposition ()
	Invalidates composition stack state. More...

void	invalidateDepthStencil ()
	Invalidates depth/stencil stack state. More...

void	invalidateRasterization ()
	Invalidates rasterization stack state. More...

bool	isCompositionStackEmpty () const
	Tells if composition stack is empty. More...

optional< NativeFramebufferHandle >	peekCompositionTargetHandle () const
	Kanzi uses this function internally to get the handle of the current composition target. More...

optional< Vector2 >	peekPolygonOffset ()
	Kanzi uses this function internally to get the current polygon offset. More...

optional< Vector2 >	peekRenderContextSize () const
	Kanzi uses this function internally to get the size of the current composition target. More...

optional< Vector4 >	peekScissor () const
	Gets current scissor. More...

optional< ViewportRectangle >	peekScissorDeviceCoordinates ()
	Kanzi uses this function internally to get the current scissor area in device coordinates. More...

optional< Texture * >	peekTexture () const
	Gets the current composition target texture. More...

optional< Vector4 >	peekViewport () const
	Gets current viewport. More...

optional< ViewportRectangle >	peekViewportDeviceCoordinates ()
	Kanzi uses this function internally to get the current viewport in device coordinates. More...

optional< Vector2 >	peekViewportOffset () const
	Gets current viewport offset. More...

optional< Vector2 >	peekViewportSize () const
	Gets current viewport size. More...

void	popColorBlend ()
	Pop blend state from blend stack. More...

void	popComposition ()
	Pop a composition target state from the stack. More...

void	popDepthStencil ()
	Pop a depth stencil state from the stack. More...

void	popRasterization ()
	Pop a rasterization state from the stack. More...

void	pushColorBlend (optional< int > blendMode, optional< GraphicsColorWriteMode > colorWriteMode)
	Pushes blend state into the blend stack. More...

void	pushComposition (NativeFramebufferHandle handle, Vector2 size)
	Pushes a composition target into the composition stack. More...

void	pushComposition (NativeFramebufferHandle handle, unsigned int bufferCount, Vector2 size)
	Pushes a composition target into the composition stack. More...

void	pushComposition (Texture &texture)
	Pushes a composition target into the composition stack. More...

void	pushComposition (Texture &texture, Vector2 size)
	Pushes a composition target into the composition stack. More...

void	pushComposition (optional< Vector4 > viewport, optional< Vector4 > scissor)
	Pushes a viewport and/or scissor onto composition stack. More...

void	pushComposition (Texture &texture, Vector4 viewport, optional< Vector4 > scissor)
	Pushes a composition target and a viewport into the composition stack. More...

void	pushComposition (NativeFramebufferHandle handle, Vector2 size, Vector4 viewport, optional< Vector4 > scissor)
	Pushes a composition target and a viewport into the composition stack. More...

void	pushComposition (NativeFramebufferHandle handle, unsigned int bufferCount, Vector2 size, Vector4 viewport, optional< Vector4 > scissor)
	Pushes a composition target and a viewport into the composition stack. More...

void	pushComposition (NativeFramebufferHandle handle, unsigned int bufferCount, Vector2 size, Vector4 viewport, optional< Vector4 > scissor, optional< Texture * > texture)
	Pushes a composition target and a viewport into the composition stack. More...

void	pushDepthStencil (optional< GraphicsCompareFunction > depthFunc, optional< bool > depthWrite, optional< GraphicsCompareFunction > stencilFunc, optional< unsigned int > referenceValue, optional< unsigned int > maskValue, optional< GraphicsStencilOperation > stencilFail, optional< GraphicsStencilOperation > stencilPassDepthFail, optional< GraphicsStencilOperation > stencilPassDepthPass, optional< bool > stencilWrite)
	Pushes depth stencil state. More...

void	pushRasterization (optional< GraphicsCullMode > cullMode, optional< Vector2 > polygonOffset)
	Pushes rasterization state. More...

void	setDebugComposer (RenderPassSharedPtr debugComposer)
	Set the debug composer to be used by this render context stack. More...

Detailed Description

Composition stack for managing current render context.

The stack has no ownership over the stored render targets - they will not be reserved or deleted.

Constructor & Destructor Documentation

kanzi::CompositionStack::CompositionStack ( )

inlineexplicit

Constructor.

kanzi::CompositionStack::CompositionStack	(	NativeFramebufferHandle	handle,
		Vector2	size
	)

inlineexplicit

Constructor.

Parameters

handle	Composition target handle.
size	Composition target size.

kanzi::CompositionStack::CompositionStack	(	NativeFramebufferHandle	handle,
		Vector2	size,
		Vector4	viewport,
		optional< Vector4 >	scissor
	)

inlineexplicit

Constructor.

Parameters

handle	Composition target handle.
size	Composition target size.
viewport	Viewport area.
scissor	Scissor area.

Member Function Documentation

bool kanzi::CompositionStack::isCompositionStackEmpty ( ) const

inline

Tells if composition stack is empty.

Empty composition stack has no states whatsoever.

void kanzi::CompositionStack::pushColorBlend	(	optional< int >	blendMode,
		optional< GraphicsColorWriteMode >	colorWriteMode
	)

Pushes blend state into the blend stack.

Using nullopt with any parameter will take the default value or the last value pushed.

Parameters

blendMode	Blend mode.
colorWriteMode	Color write mode.

Since: Kanzi 3.9.1 type of blendMode parameter changed from GraphicsBlendMode to int.

void kanzi::CompositionStack::popColorBlend ( )

inline

Pop blend state from blend stack.

void kanzi::CompositionStack::pushComposition	(	NativeFramebufferHandle	handle,
		Vector2	size
	)

Pushes a composition target into the composition stack.

Parameters

handle	Composition target handle.
size	Composition target size.

void kanzi::CompositionStack::pushComposition	(	NativeFramebufferHandle	handle,
		unsigned int	bufferCount,
		Vector2	size
	)

Pushes a composition target into the composition stack.

Parameters

handle	Composition target handle.
bufferCount	Composition target handle.
size	Composition target size.

void kanzi::CompositionStack::pushComposition ( Texture & texture )

Pushes a composition target into the composition stack.

Parameters

texture Composition target.

void kanzi::CompositionStack::pushComposition	(	Texture &	texture,
		Vector2	size
	)

Pushes a composition target into the composition stack.

Parameters

texture	Composition target.
size	Composition target size.

void kanzi::CompositionStack::pushComposition	(	optional< Vector4 >	viewport,
		optional< Vector4 >	scissor
	)

Pushes a viewport and/or scissor onto composition stack.

Parameters

viewport	optional viewport area.
scissor	optional scissor area.

void kanzi::CompositionStack::pushComposition	(	Texture &	texture,
		Vector4	viewport,
		optional< Vector4 >	scissor
	)

Pushes a composition target and a viewport into the composition stack.

Parameters

texture	Composition target.
viewport	Viewport area.
scissor	Scissor area.

void kanzi::CompositionStack::pushComposition	(	NativeFramebufferHandle	handle,
		Vector2	size,
		Vector4	viewport,
		optional< Vector4 >	scissor
	)

Pushes a composition target and a viewport into the composition stack.

Parameters

handle	Composition target handle.
size	Composition target size.
viewport	Viewport area.
scissor	Scissor area.

void kanzi::CompositionStack::pushComposition	(	NativeFramebufferHandle	handle,
		unsigned int	bufferCount,
		Vector2	size,
		Vector4	viewport,
		optional< Vector4 >	scissor
	)

inline

Pushes a composition target and a viewport into the composition stack.

Parameters

handle	Composition target handle.
bufferCount	Number of draw buffers bound to the handle.
size	Composition target size.
viewport	Viewport area.
scissor	Scissor area.

void kanzi::CompositionStack::pushComposition	(	NativeFramebufferHandle	handle,
		unsigned int	bufferCount,
		Vector2	size,
		Vector4	viewport,
		optional< Vector4 >	scissor,
		optional< Texture * >	texture
	)

inline

Pushes a composition target and a viewport into the composition stack.

Parameters

handle	Composition target handle.
bufferCount	Number of draw buffers bound to the handle.
size	Composition target size.
viewport	Viewport area.
scissor	Scissor area.
texture	The texture to use as the composition target.

Since: Kanzi 3.9.7

void kanzi::CompositionStack::popComposition ( )

inline

Pop a composition target state from the stack.

void kanzi::CompositionStack::pushDepthStencil	(	optional< GraphicsCompareFunction >	depthFunc,
		optional< bool >	depthWrite,
		optional< GraphicsCompareFunction >	stencilFunc,
		optional< unsigned int >	referenceValue,
		optional< unsigned int >	maskValue,
		optional< GraphicsStencilOperation >	stencilFail,
		optional< GraphicsStencilOperation >	stencilPassDepthFail,
		optional< GraphicsStencilOperation >	stencilPassDepthPass,
		optional< bool >	stencilWrite
	)

Pushes depth stencil state.

Using nullopt with any parameter will take the default value or the last value pushed.

Parameters

depthFunc	Depth testing function.
depthWrite	Depth write enabled?
stencilFunc	Stencil function.
referenceValue	Stencil reference value.
maskValue	Stencil mask value.
stencilFail	Operation for stencil fail.
stencilPassDepthFail	Operation for stencil pass but depth fail.
stencilPassDepthPass	Operation for stencil and depth pass.
stencilWrite	Stencil write enabled?

void kanzi::CompositionStack::popDepthStencil ( )

inline

Pop a depth stencil state from the stack.

void kanzi::CompositionStack::pushRasterization	(	optional< GraphicsCullMode >	cullMode,
		optional< Vector2 >	polygonOffset
	)

Pushes rasterization state.

Using nullopt with any parameter will take the default value or the last value pushed.

Parameters

cullMode	Culling mode.
polygonOffset	Polygon offset.

Since: Kanzi 3.9.4 polygonOffset parameter

void kanzi::CompositionStack::popRasterization ( )

inline

Pop a rasterization state from the stack.

RenderPassSharedPtr kanzi::CompositionStack::getDebugComposer ( ) const

inline

Get the debug composer used by this render context stack.

void kanzi::CompositionStack::setDebugComposer ( RenderPassSharedPtr debugComposer )

inline

Set the debug composer to be used by this render context stack.

void kanzi::CompositionStack::apply2D ( Renderer3D & renderer )

Applies the topmost render settings for 2D rendering.

Parameters

renderer Renderer to use.

void kanzi::CompositionStack::apply3D ( Renderer3D & renderer )

Applies the topmost render settings for 3D rendering.

Default values will be used for those states with empty stacks.

void kanzi::CompositionStack::applyPerspective2D	(	Renderer3D &	renderer,
		const Matrix4x4 &	cameraMatrix,
		const Matrix4x4 &	projectionMatrix
	)

Applies the topmost render settings for 2D perspective rendering.

Parameters

renderer	Renderer to use.
cameraMatrix	Precalculated cameraMatrix.
projectionMatrix	Precalculated projectionMatrix.

optional<NativeFramebufferHandle> kanzi::CompositionStack::peekCompositionTargetHandle ( ) const

inline

Kanzi uses this function internally to get the handle of the current composition target.

Returns: Framebuffer handle.

optional<Vector2> kanzi::CompositionStack::peekRenderContextSize ( ) const

inline

Kanzi uses this function internally to get the size of the current composition target.

Returns: Composition target size.

optional<Vector4> kanzi::CompositionStack::peekScissor ( ) const

inline

Gets current scissor.

Returns: Scissor in Node2D coordinates or an empty optional if no scissor is set.

optional<Vector4> kanzi::CompositionStack::peekViewport ( ) const

inline

Gets current viewport.

Returns: Viewport in Node2D coordinates or an empty optional if composition stack is empty.

optional<Vector2> kanzi::CompositionStack::peekViewportOffset ( ) const

inline

Gets current viewport offset.

Returns: Offset of topmost viewport or an empty optional if composition stack is empty.

optional<Vector2> kanzi::CompositionStack::peekViewportSize ( ) const

inline

Gets current viewport size.

Disregards scissor.

Returns: Size of topmost viewport or an empty optional if composition stack is empty.

optional<Texture*> kanzi::CompositionStack::peekTexture ( ) const

inline

Gets the current composition target texture.

Returns: The target texture. If the composition stack is empty, returns an empty optional.

Since: Kanzi 3.9.7

optional<ViewportRectangle> kanzi::CompositionStack::peekViewportDeviceCoordinates ( )

inline

Kanzi uses this function internally to get the current viewport in device coordinates.

Returns: Device coordinate viewport.

optional<ViewportRectangle> kanzi::CompositionStack::peekScissorDeviceCoordinates ( )

inline

Kanzi uses this function internally to get the current scissor area in device coordinates.

Returns: Device coordinate viewport.

optional<Vector2> kanzi::CompositionStack::peekPolygonOffset ( )

inline

Kanzi uses this function internally to get the current polygon offset.

Returns: Polygon offset.

void kanzi::CompositionStack::applyColorBlend2D ( Renderer & renderer )

inline

Applies the topmost color/blend stack state.

If stack is empty, default 2D blend settings are used.

Parameters

renderer Renderer to use.

void kanzi::CompositionStack::applyColorBlend3D ( Renderer & renderer )

inline

Applies the topmost color/blend stack state.

If stack is empty, default 3D blend settings are used.

Parameters

renderer Renderer to use.

void kanzi::CompositionStack::invalidateColorBlend ( )

inline

Invalidates color/blend stack state.

Should only be called when manually modifying color/blend state so that applying again will not assume no changes.

void kanzi::CompositionStack::applyComposition2D ( Renderer & renderer )

inline

Applies the topmost composition stack state for 2D rendering.

Default composition state for 2D is not defined.

Parameters

renderer Renderer to use.

void kanzi::CompositionStack::applyComposition3D ( Renderer & renderer )

inline

Applies the topmost composition stack state for 3D rendering.

Default composition state for 2D is not defined.

Parameters

renderer Renderer to use.

void kanzi::CompositionStack::invalidateComposition ( )

inline

Invalidates composition stack state.

Should only be called when manually modifying composition state so that applying again will not assume no changes.

void kanzi::CompositionStack::applyDepthStencil2D ( Renderer & renderer )

inline

Applies the topmost depth/stencil stack state.

If stack is empty, default depth/stencil settings are used.

Parameters

renderer Renderer to use.

void kanzi::CompositionStack::applyDepthStencil3D ( Renderer & renderer )

inline

Applies the topmost depth/stencil stack state.

If stack is empty, default depth/stencil settings are used.

Parameters

renderer Renderer to use.

void kanzi::CompositionStack::invalidateDepthStencil ( )

inline

Invalidates depth/stencil stack state.

Should only be called when manually modifying depth/stencil state so that applying again will not assume no changes.

void kanzi::CompositionStack::applyRasterization2D ( Renderer & renderer )

inline

Applies the topmost rasterization stack state.

If stack is empty, default rasterization settings are used.

Parameters

renderer Renderer to use.

void kanzi::CompositionStack::applyRasterization3D ( Renderer & renderer )

inline

Applies the topmost rasterization stack state.

If stack is empty, default rasterization settings are used.

Parameters

renderer Renderer to use.

void kanzi::CompositionStack::invalidateRasterization ( )

inline

Invalidates rasterization stack state.

Should only be called when manually modifying rasterization state so that applying again will not assume no changes.

void kanzi::CompositionStack::invalidateAllState ( )

inline

Invalidates all distinct stacks.

User should not need to call this function. Intended to be called along Renderer3D::reset() to signify context change.

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

kanzi/core.ui/graphics2d/composition_stack.hpp

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation