#include <qrhinull_p.h>

Inheritance diagram for QNullSwapChainRenderTarget:

Collaboration diagram for QNullSwapChainRenderTarget:

Public Member Functions
	QNullSwapChainRenderTarget (QRhiImplementation rhi, QRhiSwapChain swapchain)

	~QNullSwapChainRenderTarget ()

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

QSize	pixelSize () const override

float	devicePixelRatio () const override

int	sampleCount () const override

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

QRhiSwapChain *	swapChain () const

Public Member Functions inherited from QRhiRenderTarget
virtual QSize	pixelSize () const =0

virtual float	devicePixelRatio () const =0

virtual int	sampleCount () const =0

QRhiRenderPassDescriptor *	renderPassDescriptor () const

void	setRenderPassDescriptor (QRhiRenderPassDescriptor *desc)
	Sets the QRhiRenderPassDescriptor desc for use with this render target.

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

Public Attributes
QNullRenderTargetData	d

Additional Inherited Members
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 QRhiSwapChainRenderTarget
	QRhiSwapChainRenderTarget (QRhiImplementation rhi, QRhiSwapChain swapchain_)

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

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

Protected Attributes inherited from QRhiSwapChainRenderTarget
QRhiSwapChain *	m_swapchain

Protected Attributes inherited from QRhiRenderTarget
QRhiRenderPassDescriptor *	m_renderPassDesc = nullptr

Protected Attributes inherited from QRhiResource
QRhiImplementation *	m_rhi = nullptr

quint64	m_id

QByteArray	m_objectName

Detailed Description

Definition at line 90 of file qrhinull_p.h.

Constructor & Destructor Documentation

◆ QNullSwapChainRenderTarget()

QNullSwapChainRenderTarget::QNullSwapChainRenderTarget	(	QRhiImplementation *	rhi,
		QRhiSwapChain *	swapchain
	)

Definition at line 780 of file qrhinull.cpp.

◆ ~QNullSwapChainRenderTarget()

QNullSwapChainRenderTarget::~QNullSwapChainRenderTarget ( )

Definition at line 786 of file qrhinull.cpp.

References destroy().

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Member Function Documentation

◆ destroy()

void QNullSwapChainRenderTarget::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 791 of file qrhinull.cpp.

Referenced by ~QNullSwapChainRenderTarget().

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◆ devicePixelRatio()

float QNullSwapChainRenderTarget::devicePixelRatio ( ) const

overridevirtual

Returns

the device pixel ratio. For QRhiTextureRenderTarget this is always

For targets retrieved from a QRhiSwapChain the value reflects the \l{QWindow::devicePixelRatio()}{device pixel ratio} of the targeted QWindow.

Implements QRhiRenderTarget.

Definition at line 800 of file qrhinull.cpp.

References d, and QNullRenderTargetData::dpr.

◆ pixelSize()

QSize QNullSwapChainRenderTarget::pixelSize ( ) const

overridevirtual

Returns: the size in pixels.

Valid only after create() has been called successfully. Until then the result is a default-constructed QSize.

With QRhiTextureRenderTarget the returned size is the size of the associated attachments at the time of create(), in practice the size of the first color attachment, or the depth/stencil buffer if there are no color attachments. If the associated textures or renderbuffers are resized and rebuilt afterwards, then pixelSize() performs an implicit call to create() in order to rebuild the underlying data structures. This implicit check is similar to what QRhiCommandBuffer::beginPass() does, and ensures that the returned size is always up-to-date.

Implements QRhiRenderTarget.

Definition at line 795 of file qrhinull.cpp.

References d, and QNullRenderTargetData::pixelSize.