#include <qminimaleglbackingstore.h>

Inheritance diagram for QMinimalEglBackingStore:

Collaboration diagram for QMinimalEglBackingStore:

Public Member Functions
	QMinimalEglBackingStore (QWindow *window)

	~QMinimalEglBackingStore ()

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

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

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

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

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

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 QPaintDevice *	paintDevice ()=0
	Implement this function to return the appropriate paint device.

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

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

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	resize (const QSize &size, const QRegion &staticContents)=0

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

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

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

void	setRhiConfig (const QPlatformBackingStoreRhiConfig &config)

QRhi *	rhi () const

QRhiSwapChain *	rhiSwapChain () 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 }

Detailed Description

Definition at line 14 of file qminimaleglbackingstore.h.

Constructor & Destructor Documentation

◆ QMinimalEglBackingStore()

QT_BEGIN_NAMESPACE QMinimalEglBackingStore::QMinimalEglBackingStore ( QWindow * window )

Definition at line 11 of file qminimaleglbackingstore.cpp.

References QOpenGLContext::create(), QOpenGLContext::setFormat(), QOpenGLContext::setScreen(), and QPlatformBackingStore::window().

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◆ ~QMinimalEglBackingStore()

QMinimalEglBackingStore::~QMinimalEglBackingStore ( )

Definition at line 21 of file qminimaleglbackingstore.cpp.

Member Function Documentation

◆ beginPaint()

void QMinimalEglBackingStore::beginPaint ( const QRegion & )

overridevirtual

This function is called before painting onto the surface begins, with the region in which the painting will occur.

See also: endPaint(), paintDevice()

Reimplemented from QPlatformBackingStore.

Definition at line 43 of file qminimaleglbackingstore.cpp.

References QOpenGLContext::makeCurrent(), and QPlatformBackingStore::window().

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◆ endPaint()

void QMinimalEglBackingStore::endPaint ( )

overridevirtual

This function is called after painting onto the surface has ended.

See also: beginPaint(), paintDevice()

Reimplemented from QPlatformBackingStore.

Definition at line 49 of file qminimaleglbackingstore.cpp.

◆ flush()

void QMinimalEglBackingStore::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.