Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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#include <qwaylandshmbackingstore_p.h>
Public Member Functions | |
QWaylandShmBackingStore (QWindow *window, QWaylandDisplay *display) | |
~QWaylandShmBackingStore () override | |
QPaintDevice * | paintDevice () override |
Implement this function to return the appropriate paint device. | |
void | flush (QWindow *window, const QRegion ®ion, const QPoint &offset) override |
Flushes the given region from the specified window. | |
void | resize (const QSize &size, const QRegion &staticContents) override |
void | beginPaint (const QRegion ®ion) 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. | |
QWaylandAbstractDecoration * | windowDecoration () const |
QMargins | windowDecorationMargins () const |
QImage * | entireSurface () const |
QImage * | contentSurface () const |
bool | recreateBackBufferIfNeeded () |
QWaylandWindow * | waylandWindow () const |
void | iterateBuffer () |
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 ®ion, 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 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. | |
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 } |
Definition at line 55 of file qwaylandshmbackingstore_p.h.
QtWaylandClient::QWaylandShmBackingStore::QWaylandShmBackingStore | ( | QWindow * | window, |
QWaylandDisplay * | display ) |
Definition at line 137 of file qwaylandshmbackingstore.cpp.
References QObject::connect(), QtWaylandClient::QWaylandDisplay::connected(), copy(), QSize::isValid(), qDeleteAll(), recreateBackBufferIfNeeded(), waylandWindow(), and QPlatformBackingStore::window().
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override |
Definition at line 155 of file qwaylandshmbackingstore.cpp.
References qDeleteAll(), and waylandWindow().
This function is called before painting onto the surface begins, with the region in which the painting will occur.
Reimplemented from QPlatformBackingStore.
Definition at line 181 of file qwaylandshmbackingstore.cpp.
References QPainter::CompositionMode_Source, QImage::hasAlphaChannel(), QtWaylandClient::QWaylandShmBuffer::image(), QMargins::left(), paintDevice(), recreateBackBufferIfNeeded(), rect, QtWaylandClient::QWaylandWindow::setBackingStore(), QMargins::top(), QRegion::translated(), Qt::transparent, waylandWindow(), and windowDecorationMargins().
QImage * QtWaylandClient::QWaylandShmBackingStore::contentSurface | ( | ) | const |
Definition at line 345 of file qwaylandshmbackingstore.cpp.
References QtWaylandClient::QWaylandShmBuffer::image(), QtWaylandClient::QWaylandShmBuffer::imageInsideMargins(), windowDecoration(), and windowDecorationMargins().
Referenced by paintDevice().
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overridevirtual |
This function is called after painting onto the surface has ended.
Reimplemented from QPlatformBackingStore.
Definition at line 202 of file qwaylandshmbackingstore.cpp.
References flush(), and QPlatformBackingStore::window().
QImage * QtWaylandClient::QWaylandShmBackingStore::entireSurface | ( | ) | const |
Definition at line 340 of file qwaylandshmbackingstore.cpp.
References QtWaylandClient::QWaylandShmBuffer::image().
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overridevirtual |
Flushes the given region from the specified 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.
Reimplemented from QPlatformBackingStore.
Definition at line 209 of file qwaylandshmbackingstore.cpp.
References QMargins::left(), Q_UNUSED, QtWaylandClient::QWaylandWindow::safeCommit(), QMargins::top(), QRegion::translated(), waylandWindow(), QPlatformBackingStore::window(), windowDecoration(), and windowDecorationMargins().
Referenced by endPaint().
void QtWaylandClient::QWaylandShmBackingStore::iterateBuffer | ( | ) |
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overridevirtual |
Implement this function to return the appropriate paint device.
Implements QPlatformBackingStore.
Definition at line 166 of file qwaylandshmbackingstore.cpp.
References contentSurface().
Referenced by beginPaint().
bool QtWaylandClient::QWaylandShmBackingStore::recreateBackBufferIfNeeded | ( | ) |
Definition at line 274 of file qwaylandshmbackingstore.cpp.
References QtWaylandClient::QWaylandDisplay::blockingReadEvents(), QMargins::bottom(), QPainter::CompositionMode_Source, QPainter::device(), QPaintDevice::devicePixelRatio(), QPainter::drawImage(), QtWaylandClient::QWaylandShmBuffer::image(), isVisible(), QMargins::left(), painter, Q_ASSERT, qCDebug, rect, QMargins::right(), QtWaylandClient::QWaylandWindow::scale(), QPainter::scale(), QPainter::setCompositionMode(), QImage::sizeInBytes(), QMargins::top(), QtWaylandClient::QWaylandAbstractDecoration::update(), waylandWindow(), QPlatformBackingStore::window(), windowDecoration(), and windowDecorationMargins().
Referenced by QWaylandShmBackingStore(), beginPaint(), and QtWaylandClient::QWaylandWindow::ensureSize().
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overridevirtual |
Implements QPlatformBackingStore.
Definition at line 240 of file qwaylandshmbackingstore.cpp.
QWaylandWindow * QtWaylandClient::QWaylandShmBackingStore::waylandWindow | ( | ) | const |
Definition at line 407 of file qwaylandshmbackingstore.cpp.
References QPlatformBackingStore::window().
Referenced by QWaylandShmBackingStore(), ~QWaylandShmBackingStore(), beginPaint(), flush(), recreateBackBufferIfNeeded(), and windowDecoration().
QWaylandAbstractDecoration * QtWaylandClient::QWaylandShmBackingStore::windowDecoration | ( | ) | const |
Definition at line 395 of file qwaylandshmbackingstore.cpp.
References QtWaylandClient::QWaylandWindow::decoration(), and waylandWindow().
Referenced by contentSurface(), flush(), recreateBackBufferIfNeeded(), and windowDecorationMargins().
QMargins QtWaylandClient::QWaylandShmBackingStore::windowDecorationMargins | ( | ) | const |
Definition at line 400 of file qwaylandshmbackingstore.cpp.
References QtWaylandClient::QWaylandAbstractDecoration::margins(), and windowDecoration().
Referenced by beginPaint(), contentSurface(), flush(), and recreateBackBufferIfNeeded().