#include <qrhibackingstore_p.h>

Inheritance diagram for QRhiBackingStore:

Collaboration diagram for QRhiBackingStore:

Public Member Functions
	QRhiBackingStore (QWindow *window)

	~QRhiBackingStore ()

void	flush (QWindow *window, const QRegion &region, const QPoint &offset) override
	Flushes the given region from the specified window.

QImage::Format	format () const override

Public Member Functions inherited from QRasterBackingStore
	QRasterBackingStore (QWindow *window)

	~QRasterBackingStore ()

void	resize (const QSize &size, const QRegion &staticContents) override

bool	scroll (const QRegion &area, int dx, int dy) override
	Scrolls the given area dx pixels to the right and dy downward; both dx and dy may be negative.

void	beginPaint (const QRegion &region) override
	This function is called before painting onto the surface begins, with the region in which the painting will occur.

QPaintDevice *	paintDevice () override
	Implement this function to return the appropriate paint device.

QImage	toImage () const override
	Implemented in subclasses to return the content of the backingstore as a QImage.

Public Member Functions inherited from QPlatformBackingStore
	QPlatformBackingStore (QWindow *window)
	Constructs an empty surface for the given top-level window.

virtual	~QPlatformBackingStore ()
	Destroys this surface.

QWindow *	window () const
	Returns a pointer to the top-level window associated with this surface.

QBackingStore *	backingStore () const
	Returns a pointer to the backing store associated with this surface.

virtual FlushResult	rhiFlush (QWindow window, qreal sourceDevicePixelRatio, const QRegion &region, const QPoint &offset, QPlatformTextureList textures, bool translucentBackground)
	Flushes the given region from the specified window, and compositing it with the specified textures list.

virtual QRhiTexture *	toTexture (QRhiResourceUpdateBatch resourceUpdates, const QRegion &dirtyRegion, TextureFlags flags) const
	May be reimplemented in subclasses to return the content of the backingstore as an QRhiTexture.

virtual QPlatformGraphicsBuffer *	graphicsBuffer () const
	Accessor for a backingstores graphics buffer abstraction.

virtual void	endPaint ()
	This function is called after painting onto the surface has ended.

void	setRhiConfig (const QPlatformBackingStoreRhiConfig &config)

QRhi *	rhi () const

void	surfaceAboutToBeDestroyed ()

void	graphicsDeviceReportedLost ()

Additional Inherited Members
Public Types inherited from QPlatformBackingStore
enum	FlushResult { FlushSuccess , FlushFailed , FlushFailedDueToLostDevice }

enum	TextureFlag { TextureSwizzle = 0x01 , TextureFlip = 0x02 , TexturePremultiplied = 0x04 }

Protected Attributes inherited from QRasterBackingStore
QImage	m_image

QSize	m_requestedSize

Detailed Description

Definition at line 22 of file qrhibackingstore_p.h.

Constructor & Destructor Documentation

◆ QRhiBackingStore()

QT_BEGIN_NAMESPACE QRhiBackingStore::QRhiBackingStore ( QWindow * window )

Definition at line 9 of file qrhibackingstore.cpp.

◆ ~QRhiBackingStore()

QRhiBackingStore::~QRhiBackingStore ( )

Definition at line 14 of file qrhibackingstore.cpp.

Member Function Documentation

◆ flush()

void QRhiBackingStore::flush	(	QWindow *	window,
		const QRegion &	region,
		const QPoint &	offset )

overridevirtual

Flushes the given region from the specified window.

Note: region is relative to the window which may not be top-level in case window corresponds to a native child widget. offset is the position of the native child relative to the top-level window.

Unlike rhiFlush(), this function's default implementation does nothing. It is expected that subclasses provide a platform-specific (non-QRhi-based) implementation, if applicable on the given platform.