#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, qreal sourceTransformFactor=0)
	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	createRhi (QWindow *window, QPlatformBackingStoreRhiConfig config)
QRhi *	rhi (QWindow *window) const
void	surfaceAboutToBeDestroyed ()
void	graphicsDeviceReportedLost (QWindow *window)

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 10 of file qrhibackingstore.cpp.

◆ ~QRhiBackingStore()

QRhiBackingStore::~QRhiBackingStore ( )

Definition at line 15 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.