#include <qrhinull_p.h>

Inheritance diagram for QNullGraphicsPipeline:

Collaboration diagram for QNullGraphicsPipeline:

Public Member Functions
	QNullGraphicsPipeline (QRhiImplementation *rhi)

	~QNullGraphicsPipeline ()

void	destroy () override
	Releases (or requests deferred releasing of) the underlying native graphics resources.

bool	create () override
	Creates the corresponding native graphics resources.

Public Member Functions inherited from QRhiGraphicsPipeline
QRhiResource::Type	resourceType () const override

Flags	flags () const

void	setFlags (Flags f)
	Sets the flags f.

Topology	topology () const

void	setTopology (Topology t)
	Sets the primitive topology t.

CullMode	cullMode () const

void	setCullMode (CullMode mode)
	Sets the specified face culling mode.

FrontFace	frontFace () const

void	setFrontFace (FrontFace f)
	Sets the front face mode f.

void	setTargetBlends (std::initializer_list< TargetBlend > list)
	Sets the list of render target blend settings.

template<typename InputIterator >
void	setTargetBlends (InputIterator first, InputIterator last)
	Sets the list of render target blend settings from the iterators first and last.

const TargetBlend *	cbeginTargetBlends () const

const TargetBlend *	cendTargetBlends () const

const TargetBlend *	targetBlendAt (qsizetype index) const

qsizetype	targetBlendCount () const

bool	hasDepthTest () const

void	setDepthTest (bool enable)
	Enables or disables depth testing based on enable.

bool	hasDepthWrite () const

void	setDepthWrite (bool enable)
	Controls the writing out of depth data into the depth buffer based on enable.

CompareOp	depthOp () const

void	setDepthOp (CompareOp op)
	Sets the depth comparison function op.

bool	hasStencilTest () const

void	setStencilTest (bool enable)
	Enables or disables stencil tests based on enable.

StencilOpState	stencilFront () const

void	setStencilFront (const StencilOpState &state)
	Sets the stencil test state for front faces.

StencilOpState	stencilBack () const

void	setStencilBack (const StencilOpState &state)
	Sets the stencil test state for back faces.

quint32	stencilReadMask () const

void	setStencilReadMask (quint32 mask)
	Sets the stencil read mask.

quint32	stencilWriteMask () const

void	setStencilWriteMask (quint32 mask)
	Sets the stencil write mask.

int	sampleCount () const

void	setSampleCount (int s)
	Sets the sample count.

float	lineWidth () const

void	setLineWidth (float width)
	Sets the line width.

int	depthBias () const

void	setDepthBias (int bias)
	Sets the depth bias.

float	slopeScaledDepthBias () const

void	setSlopeScaledDepthBias (float bias)
	Sets the slope scaled depth bias.

void	setShaderStages (std::initializer_list< QRhiShaderStage > list)
	Sets the list of shader stages.

template<typename InputIterator >
void	setShaderStages (InputIterator first, InputIterator last)
	Sets the list of shader stages from the iterators first and last.

const QRhiShaderStage *	cbeginShaderStages () const

const QRhiShaderStage *	cendShaderStages () const

const QRhiShaderStage *	shaderStageAt (qsizetype index) const

qsizetype	shaderStageCount () const

QRhiVertexInputLayout	vertexInputLayout () const

void	setVertexInputLayout (const QRhiVertexInputLayout &layout)
	Specifies the vertex input layout.

QRhiShaderResourceBindings *	shaderResourceBindings () const

void	setShaderResourceBindings (QRhiShaderResourceBindings *srb)
	Associates with srb describing the resource binding layout and the resources (QRhiBuffer, QRhiTexture) themselves.

QRhiRenderPassDescriptor *	renderPassDescriptor () const

void	setRenderPassDescriptor (QRhiRenderPassDescriptor *desc)
	Associates with the specified QRhiRenderPassDescriptor desc.

int	patchControlPointCount () const

void	setPatchControlPointCount (int count)
	Sets the number of patch control points to count.

PolygonMode	polygonMode () const

void	setPolygonMode (PolygonMode mode)
	Sets the polygon mode.

int	multiViewCount () const

void	setMultiViewCount (int count)
	Sets the view count for multiview rendering.

virtual bool	create ()=0
	Creates the corresponding native graphics resources.

Public Member Functions inherited from QRhiResource
virtual	~QRhiResource ()
	Destructor.

virtual Type	resourceType () const =0

virtual void	destroy ()=0
	Releases (or requests deferred releasing of) the underlying native graphics resources.

void	deleteLater ()
	When called without a frame being recorded, this function is equivalent to deleting the object.

QByteArray	name () const

void	setName (const QByteArray &name)
	Sets a name for the object.

quint64	globalResourceId () const

QRhi *	rhi () const

Additional Inherited Members
Public Types inherited from QRhiGraphicsPipeline
enum	Flag { UsesBlendConstants = 1 << 0 , UsesStencilRef = 1 << 1 , UsesScissor = 1 << 2 , CompileShadersWithDebugInfo = 1 << 3 }
	Flag values for describing the dynamic state of the pipeline, and other options. More...

enum	Topology { Triangles , TriangleStrip , TriangleFan , Lines , LineStrip , Points , Patches }
	Specifies the primitive topology. More...

enum	CullMode { None , Front , Back }
	Specifies the culling mode. More...

enum	FrontFace { CCW , CW }
	Specifies the front face winding order. More...

enum	ColorMaskComponent { R = 1 << 0 , G = 1 << 1 , B = 1 << 2 , A = 1 << 3 }
	Flag values for specifying the color write mask. More...

enum	BlendFactor { Zero , One , SrcColor , OneMinusSrcColor , DstColor , OneMinusDstColor , SrcAlpha , OneMinusSrcAlpha , DstAlpha , OneMinusDstAlpha , ConstantColor , OneMinusConstantColor , ConstantAlpha , OneMinusConstantAlpha , SrcAlphaSaturate , Src1Color , OneMinusSrc1Color , Src1Alpha , OneMinusSrc1Alpha }
	Specifies the blend factor. More...

enum	BlendOp { Add , Subtract , ReverseSubtract , Min , Max }
	Specifies the blend operation. More...

enum	CompareOp { Never , Less , Equal , LessOrEqual , Greater , NotEqual , GreaterOrEqual , Always }
	Specifies the depth or stencil comparison function. More...

enum	StencilOp { StencilZero , Keep , Replace , IncrementAndClamp , DecrementAndClamp , Invert , IncrementAndWrap , DecrementAndWrap }
	Specifies the stencil operation. More...

enum	PolygonMode { Fill , Line }
	Specifies the polygon rasterization mode. More...

Public Types inherited from QRhiResource
enum	Type { Buffer , Texture , Sampler , RenderBuffer , RenderPassDescriptor , SwapChainRenderTarget , TextureRenderTarget , ShaderResourceBindings , GraphicsPipeline , SwapChain , ComputePipeline , CommandBuffer }
	Specifies type of the resource. More...

Protected Member Functions inherited from QRhiGraphicsPipeline
	QRhiGraphicsPipeline (QRhiImplementation *rhi)
	\variable QRhiGraphicsPipeline::StencilOpState::failOp

Protected Member Functions inherited from QRhiResource
	QRhiResource (QRhiImplementation *rhi)

Protected Attributes inherited from QRhiGraphicsPipeline
Flags	m_flags

Topology	m_topology = Triangles

CullMode	m_cullMode = None

FrontFace	m_frontFace = CCW

QVarLengthArray< TargetBlend, 8 >	m_targetBlends

bool	m_depthTest = false

bool	m_depthWrite = false

CompareOp	m_depthOp = Less

bool	m_stencilTest = false

StencilOpState	m_stencilFront

StencilOpState	m_stencilBack

quint32	m_stencilReadMask = 0xFF

quint32	m_stencilWriteMask = 0xFF

int	m_sampleCount = 1

float	m_lineWidth = 1.0f

int	m_depthBias = 0

float	m_slopeScaledDepthBias = 0.0f

int	m_patchControlPointCount = 3

PolygonMode	m_polygonMode = Fill

int	m_multiViewCount = 0

QVarLengthArray< QRhiShaderStage, 4 >	m_shaderStages

QRhiVertexInputLayout	m_vertexInputLayout

QRhiShaderResourceBindings *	m_shaderResourceBindings = nullptr

QRhiRenderPassDescriptor *	m_renderPassDesc = nullptr

Protected Attributes inherited from QRhiResource
QRhiImplementation *	m_rhi = nullptr

quint64	m_id

QByteArray	m_objectName

Detailed Description

Definition at line 128 of file qrhinull_p.h.

Constructor & Destructor Documentation

◆ QNullGraphicsPipeline()

QNullGraphicsPipeline::QNullGraphicsPipeline ( QRhiImplementation * rhi )

Definition at line 909 of file qrhinull.cpp.

◆ ~QNullGraphicsPipeline()

QNullGraphicsPipeline::~QNullGraphicsPipeline ( )

Definition at line 914 of file qrhinull.cpp.

References destroy().

Here is the call graph for this function:

Member Function Documentation

◆ create()

bool QNullGraphicsPipeline::create ( )

overridevirtual

Creates the corresponding native graphics resources.

If there are already resources present due to an earlier create() with no corresponding destroy(), then destroy() is called implicitly first.

Returns: true when successful, false when a graphics operation failed. Regardless of the return value, calling destroy() is always safe.

Note: This may be, depending on the underlying graphics API, an expensive operation, especially when shaders get compiled/optimized from source or from an intermediate bytecode format to the GPU's own instruction set. Where applicable, the QRhi backend automatically sets up the relevant non-persistent facilities to accelerate this, for example the Vulkan backend automatically creates a VkPipelineCache to improve data reuse during the lifetime of the application.; Drivers may also employ various persistent (disk-based) caching strategies for shader and pipeline data, which is hidden to and is outside of Qt's control. In some cases, depending on the graphics API and the QRhi backend, there are facilities within QRhi for manually managing such a cache, allowing the retrieval of a serializable blob that can then be reloaded in the future runs of the application to ensure faster pipeline creation times. See QRhi::pipelineCacheData() and QRhi::setPipelineCacheData() for details. Note also that when working with a QRhi instance managed by a higher level Qt framework, such as Qt Quick, it is possible that such disk-based caching is taken care of automatically, for example QQuickWindow uses a disk-based pipeline cache by default (which comes in addition to any driver-level caching).

Implements QRhiGraphicsPipeline.

Definition at line 926 of file qrhinull.cpp.

References QRHI_RES_RHI.

◆ destroy()

void QNullGraphicsPipeline::destroy ( )

overridevirtual

Releases (or requests deferred releasing of) the underlying native graphics resources.

Safe to call multiple times, subsequent invocations will be a no-op then.

Once destroy() is called, the QRhiResource instance can be reused, by calling create() again. That will then result in creating new native graphics resources underneath.

Note: Resources referenced by commands for the current frame should not be released until the frame is submitted by QRhi::endFrame().

The QRhiResource destructor also performs the same task, so calling this function is not necessary before deleting a QRhiResource.

See also: deleteLater()

Implements QRhiResource.

Definition at line 919 of file qrhinull.cpp.

References QRHI_RES_RHI.

Referenced by ~QNullGraphicsPipeline().

Here is the caller graph for this function:

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

qtbase/src/gui/rhi/qrhinull_p.h
qtbase/src/gui/rhi/qrhinull.cpp

Public Member Functions