#include <qrhinull_p.h>

Inheritance diagram for QNullCommandBuffer:

Collaboration diagram for QNullCommandBuffer:

Public Member Functions
	QNullCommandBuffer (QRhiImplementation *rhi)
	~QNullCommandBuffer ()
void	destroy () override
	Releases (or requests deferred releasing of) the underlying native graphics resources.
Public Member Functions inherited from QRhiCommandBuffer
QRhiResource::Type	resourceType () const override
void	resourceUpdate (QRhiResourceUpdateBatch *resourceUpdates)
	Sometimes committing resource updates is necessary or just more convenient without starting a render pass.
void	beginPass (QRhiRenderTarget rt, const QColor &colorClearValue, const QRhiDepthStencilClearValue &depthStencilClearValue, QRhiResourceUpdateBatch resourceUpdates=nullptr, BeginPassFlags flags={})
	Records starting a new render pass targeting the render target rt.
void	endPass (QRhiResourceUpdateBatch *resourceUpdates=nullptr)
	Records ending the current render pass.
void	setGraphicsPipeline (QRhiGraphicsPipeline *ps)
	Records setting a new graphics pipeline ps.
void	setShaderResources (QRhiShaderResourceBindings srb=nullptr, int dynamicOffsetCount=0, const DynamicOffset dynamicOffsets=nullptr)
	Records binding a set of shader resources, such as, uniform buffers or textures, that are made visible to one or more shader stages.
void	setVertexInput (int startBinding, int bindingCount, const VertexInput bindings, QRhiBuffer indexBuf=nullptr, quint32 indexOffset=0, IndexFormat indexFormat=IndexUInt16)
	Records vertex input bindings.
void	setViewport (const QRhiViewport &viewport)
	Records setting the active viewport rectangle specified in viewport.
void	setScissor (const QRhiScissor &scissor)
	Records setting the active scissor rectangle specified in scissor.
void	setBlendConstants (const QColor &c)
	Records setting the active blend constants to c.
void	setStencilRef (quint32 refValue)
	Records setting the active stencil reference value to refValue.
void	setShadingRate (const QSize &coarsePixelSize)
	Sets the shading rate for the following draw calls to coarsePixelSize.
void	draw (quint32 vertexCount, quint32 instanceCount=1, quint32 firstVertex=0, quint32 firstInstance=0)
	Records a non-indexed draw.
void	drawIndexed (quint32 indexCount, quint32 instanceCount=1, quint32 firstIndex=0, qint32 vertexOffset=0, quint32 firstInstance=0)
	Records an indexed draw.
void	drawIndirect (QRhiBuffer *indirectBuffer, quint32 indirectBufferOffset, quint32 drawCount, quint32 stride=sizeof(QRhiIndirectDrawCommand))
	Records a non-indexed, indirect draw.
void	drawIndexedIndirect (QRhiBuffer *indirectBuffer, quint32 indirectBufferOffset, quint32 drawCount, quint32 stride=sizeof(QRhiIndexedIndirectDrawCommand))
	Records an indexed, indirect draw.
void	drawIndirectCount (QRhiBuffer indirectBuffer, quint32 indirectBufferOffset, QRhiBuffer countBuffer, quint32 countBufferOffset, quint32 maxDrawCount, quint32 stride=sizeof(QRhiIndirectDrawCommand))
	Records a non-indexed, indirect draw, with the draw count itself read from a buffer at execution time.
void	drawIndexedIndirectCount (QRhiBuffer indirectBuffer, quint32 indirectBufferOffset, QRhiBuffer countBuffer, quint32 countBufferOffset, quint32 maxDrawCount, quint32 stride=sizeof(QRhiIndexedIndirectDrawCommand))
	Indexed variant of drawIndirectCount().
void	buildIndirect (QRhiIndirectCommandBuffer *icb, const QRhiIndirectCommandBufferBuildInfo &info)
	Records populating the indirect command buffer icb from the buffer and parameters described by info.
void	executeIndirect (QRhiIndirectCommandBuffer *icb, quint32 firstCommand=0, quint32 commandCount=0xFFFFFFFFu)
	Records executing the commands held by the indirect command buffer icb, starting at firstCommand and executing at most commandCount of them.
void	debugMarkBegin (const QByteArray &name)
	Records a named debug group on the command buffer with the specified name.
void	debugMarkEnd ()
	Records the end of a debug group.
void	debugMarkMsg (const QByteArray &msg)
	Inserts a debug message msg into the command stream.
void	beginComputePass (QRhiResourceUpdateBatch *resourceUpdates=nullptr, BeginPassFlags flags={})
	Records starting a new compute pass.
void	endComputePass (QRhiResourceUpdateBatch *resourceUpdates=nullptr)
	Records ending the current compute pass.
void	setComputePipeline (QRhiComputePipeline *ps)
	Records setting a new compute pipeline ps.
void	dispatch (int x, int y, int z)
	Records dispatching compute work items, with x, y, and z specifying the number of local workgroups in the corresponding dimension.
void	dispatchIndirect (QRhiBuffer *indirectBuffer, quint32 indirectBufferOffset=0)
	Records an indirect compute dispatch.
const QRhiNativeHandles *	nativeHandles ()
void	beginExternal ()
	To be called when the application before the application is about to enqueue commands to the current pass' command buffer by calling graphics API functions directly.
void	endExternal ()
	To be called once the externally added commands are recorded to the command buffer or context.
double	lastCompletedGpuTime ()
Public Member Functions inherited from QRhiResource
virtual	~QRhiResource ()
	Destructor.
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 QRhiCommandBuffer
enum	IndexFormat { IndexUInt16 , IndexUInt32 }
	Specifies the index data type. More...
enum	BeginPassFlag { ExternalContent = 0x01 , DoNotTrackResourcesForCompute = 0x02 }
	Flag values for QRhi::beginPass(). More...
using	DynamicOffset = std::pair<int, quint32>
	Synonym for std::pair<int, quint32>.
using	VertexInput = std::pair<QRhiBuffer *, quint32>
	Synonym for std::pair<QRhiBuffer *, quint32>.
Public Types inherited from QRhiResource
enum	Type { Buffer , Texture , Sampler , RenderBuffer , RenderPassDescriptor , SwapChainRenderTarget , TextureRenderTarget , ShaderResourceBindings , GraphicsPipeline , SwapChain , ComputePipeline , CommandBuffer , ShadingRateMap , IndirectCommandBuffer }
	Specifies type of the resource. More...
Protected Member Functions inherited from QRhiCommandBuffer
	QRhiCommandBuffer (QRhiImplementation *rhi)
Protected Member Functions inherited from QRhiResource
	QRhiResource (QRhiImplementation *rhi)
Protected Attributes inherited from QRhiResource
QRhiImplementation *	m_rhi = nullptr
quint64	m_id
QByteArray	m_objectName

Detailed Description

Definition at line 145 of file qrhinull_p.h.

Constructor & Destructor Documentation

◆ QNullCommandBuffer()

QNullCommandBuffer::QNullCommandBuffer ( QRhiImplementation * rhi )

Definition at line 1066 of file qrhinull.cpp.

References QNullCommandBuffer().

Referenced by QNullCommandBuffer().

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◆ ~QNullCommandBuffer()

QNullCommandBuffer::~QNullCommandBuffer ( )

Definition at line 1071 of file qrhinull.cpp.

References destroy().

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Member Function Documentation

◆ destroy()

void QNullCommandBuffer::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 1076 of file qrhinull.cpp.

Referenced by ~QNullCommandBuffer().