QSGBatchRenderer::RenderNodeState Struct Reference

Inheritance diagram for QSGBatchRenderer::RenderNodeState:

Collaboration diagram for QSGBatchRenderer::RenderNodeState:

Public Member Functions
const QMatrix4x4 *	projectionMatrix () const override
QRect	scissorRect () const override
bool	scissorEnabled () const override
int	stencilValue () const override
bool	stencilEnabled () const override
const QRegion *	clipRegion () const override
Public Member Functions inherited from QSGRenderNode::RenderState
virtual	~RenderState ()
virtual const QMatrix4x4 *	projectionMatrix () const =0
virtual QRect	scissorRect () const =0
virtual bool	scissorEnabled () const =0
virtual int	stencilValue () const =0
virtual bool	stencilEnabled () const =0
virtual const QRegion *	clipRegion () const =0
virtual void *	get (const char *state) const

Public Attributes
const QMatrix4x4 *	m_projectionMatrix
QRect	m_scissorRect
int	m_stencilValue
bool	m_scissorEnabled
bool	m_stencilEnabled

Detailed Description

Definition at line 3894 of file qsgbatchrenderer.cpp.

Member Function Documentation

clipRegion()

const QRegion * QSGBatchRenderer::RenderNodeState::clipRegion ( ) const

inlineoverridevirtual

Returns

the current clip region or null for backends where clipping is implemented via stencil or scissoring.

The software backend uses no projection, scissor or stencil, meaning most of the render state is not in use. However, the clip region that can be set on the QPainter still has to be communicated since reconstructing this manually in render() is not reasonable. It can therefore be queried via this function. The region is in world coordinates and can be passed to QPainter::setClipRegion() with Qt::ReplaceClip. This must be done before calling QPainter::setTransform() since the clip region is already mapped to the transform provided in QSGRenderNode::matrix().

Implements QSGRenderNode::RenderState.

Definition at line 3901 of file qsgbatchrenderer.cpp.

projectionMatrix()

const QMatrix4x4 * QSGBatchRenderer::RenderNodeState::projectionMatrix ( ) const

inlineoverridevirtual

Returns

pointer to the current projection matrix.

The model-view matrix can be retrieved with QSGRenderNode::matrix(). Typically {projection * modelview} is the matrix that is then used in the vertex shader to transform the vertices.

Implements QSGRenderNode::RenderState.

Definition at line 3896 of file qsgbatchrenderer.cpp.

References m_projectionMatrix.

scissorEnabled()

bool QSGBatchRenderer::RenderNodeState::scissorEnabled ( ) const

inlineoverridevirtual

Returns

the current state of scissoring.

Note

Only relevant for graphics APIs that have a dedicated on/off state of scissoring.

Implements QSGRenderNode::RenderState.

Definition at line 3898 of file qsgbatchrenderer.cpp.

References m_scissorEnabled.

scissorRect()

QRect QSGBatchRenderer::RenderNodeState::scissorRect ( ) const

inlineoverridevirtual

Returns

the current scissor rectangle when clipping is active. x and y are the bottom left coordinates.

Implements QSGRenderNode::RenderState.

Definition at line 3897 of file qsgbatchrenderer.cpp.

References m_scissorRect.

stencilEnabled()

bool QSGBatchRenderer::RenderNodeState::stencilEnabled ( ) const

inlineoverridevirtual

Returns

the current state of stencil testing.

Note

With graphics APIs where stencil testing is enabled in pipeline state objects, instead of individual state-setting commands, it is up to the implementation of render() to enable stencil testing with operations KEEP, comparison function EQUAL, and a read and write mask of 0xFF.

Implements QSGRenderNode::RenderState.

Definition at line 3900 of file qsgbatchrenderer.cpp.

References m_stencilEnabled.

stencilValue()

int QSGBatchRenderer::RenderNodeState::stencilValue ( ) const

inlineoverridevirtual

Returns

the current stencil reference value when clipping is active.

Implements QSGRenderNode::RenderState.

Definition at line 3899 of file qsgbatchrenderer.cpp.

References m_stencilValue.

Member Data Documentation

m_projectionMatrix

const QMatrix4x4* QSGBatchRenderer::RenderNodeState::m_projectionMatrix

Definition at line 3903 of file qsgbatchrenderer.cpp.

Referenced by projectionMatrix().

m_scissorEnabled

bool QSGBatchRenderer::RenderNodeState::m_scissorEnabled

Definition at line 3906 of file qsgbatchrenderer.cpp.

Referenced by scissorEnabled().

m_scissorRect

QRect QSGBatchRenderer::RenderNodeState::m_scissorRect

Definition at line 3904 of file qsgbatchrenderer.cpp.

Referenced by scissorRect().

m_stencilEnabled

bool QSGBatchRenderer::RenderNodeState::m_stencilEnabled

Definition at line 3907 of file qsgbatchrenderer.cpp.

Referenced by stencilEnabled().

m_stencilValue

int QSGBatchRenderer::RenderNodeState::m_stencilValue

Definition at line 3905 of file qsgbatchrenderer.cpp.

Referenced by stencilValue().

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

• qtdeclarative/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp