diff options
Diffstat (limited to 'src/plugins/platforms/cocoa/qcocoabackingstore.mm')
-rw-r--r-- | src/plugins/platforms/cocoa/qcocoabackingstore.mm | 120 |
1 files changed, 78 insertions, 42 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoabackingstore.mm b/src/plugins/platforms/cocoa/qcocoabackingstore.mm index b17302a640..2b4c71f279 100644 --- a/src/plugins/platforms/cocoa/qcocoabackingstore.mm +++ b/src/plugins/platforms/cocoa/qcocoabackingstore.mm @@ -51,17 +51,6 @@ QT_BEGIN_NAMESPACE QCocoaBackingStore::QCocoaBackingStore(QWindow *window) : QRasterBackingStore(window) { - // Ideally this would be plumbed from the platform layer to QtGui, and - // the QBackingStore would be recreated, but we don't have that code yet, - // so at least make sure we invalidate our backingstore when the backing - // properties (color space e.g.) are changed. - NSView *view = static_cast<QCocoaWindow *>(window->handle())->view(); - m_backingPropertiesObserver = QMacNotificationObserver(view.window, - NSWindowDidChangeBackingPropertiesNotification, [this]() { - qCDebug(lcQpaBackingStore) << "Backing properties for" - << this->window() << "did change"; - backingPropertiesChanged(); - }); } QCFType<CGColorSpaceRef> QCocoaBackingStore::colorSpace() const @@ -341,11 +330,6 @@ void QNSWindowBackingStore::redrawRoundedBottomCorners(CGRect windowRect) const #endif } -void QNSWindowBackingStore::backingPropertiesChanged() -{ - m_image = QImage(); -} - // ---------------------------------------------------------------------------- QCALayerBackingStore::QCALayerBackingStore(QWindow *window) @@ -353,6 +337,18 @@ QCALayerBackingStore::QCALayerBackingStore(QWindow *window) { qCDebug(lcQpaBackingStore) << "Creating QCALayerBackingStore for" << window; m_buffers.resize(1); + + // Ideally this would be plumbed from the platform layer to QtGui, and + // the QBackingStore would be recreated, but we don't have that code yet, + // so at least make sure we update our backingstore when the backing + // properties (color space e.g.) are changed. + NSView *view = static_cast<QCocoaWindow *>(window->handle())->view(); + m_backingPropertiesObserver = QMacNotificationObserver(view.window, + NSWindowDidChangeBackingPropertiesNotification, [this]() { + qCDebug(lcQpaBackingStore) << "Backing properties for" + << this->window() << "did change"; + backingPropertiesChanged(); + }); } QCALayerBackingStore::~QCALayerBackingStore() @@ -386,7 +382,7 @@ void QCALayerBackingStore::beginPaint(const QRegion ®ion) // Although undocumented, QBackingStore::beginPaint expects the painted region // to be cleared before use if the window has a surface format with an alpha. // Fresh IOSurfaces are already cleared, so we don't need to clear those. - if (!bufferWasRecreated && window()->format().hasAlpha()) { + if (m_clearSurfaceOnPaint && !bufferWasRecreated && window()->format().hasAlpha()) { qCDebug(lcQpaBackingStore) << "Clearing" << region << "before use"; QPainter painter(m_buffers.back()->asImage()); painter.setCompositionMode(QPainter::CompositionMode_Source); @@ -515,9 +511,13 @@ void QCALayerBackingStore::flush(QWindow *flushedWindow, const QRegion ®ion, if (!prepareForFlush()) return; + if (flushedWindow != window()) { + flushSubWindow(flushedWindow); + return; + } + QMacAutoReleasePool pool; - NSView *backingStoreView = static_cast<QCocoaWindow *>(window()->handle())->view(); NSView *flushedView = static_cast<QCocoaWindow *>(flushedWindow->handle())->view(); // If the backingstore is just flushed, without being painted to first, then we may @@ -552,7 +552,7 @@ void QCALayerBackingStore::flush(QWindow *flushedWindow, const QRegion ®ion, // are committed as part of a display-cycle instead of on the next runloop pass. This // means CA won't try to throttle us if we flush too fast, and we'll coalesce our flush // with other pending view and layer updates. - backingStoreView.window.viewsNeedDisplay = YES; + flushedView.window.viewsNeedDisplay = YES; if (window()->format().swapBehavior() == QSurfaceFormat::SingleBuffer) { // The private API [CALayer reloadValueForKeyPath:@"contents"] would be preferable, @@ -560,27 +560,10 @@ void QCALayerBackingStore::flush(QWindow *flushedWindow, const QRegion ®ion, flushedView.layer.contents = nil; } - if (flushedView == backingStoreView) { - qCInfo(lcQpaBackingStore) << "Flushing" << backBufferSurface - << "to" << flushedView.layer << "of" << flushedView; - flushedView.layer.contents = backBufferSurface; - } else { - auto subviewRect = [flushedView convertRect:flushedView.bounds toView:backingStoreView]; - auto scale = flushedView.layer.contentsScale; - subviewRect = CGRectApplyAffineTransform(subviewRect, CGAffineTransformMakeScale(scale, scale)); - - // We make a copy of the image data up front, which means we don't - // need to mark the IOSurface as being in use. FIXME: Investigate - // if there's a cheaper way to get sub-image data to a layer. - m_buffers.back()->lock(QPlatformGraphicsBuffer::SWReadAccess); - QImage subImage = m_buffers.back()->asImage()->copy(QRectF::fromCGRect(subviewRect).toRect()); - m_buffers.back()->unlock(); + qCInfo(lcQpaBackingStore) << "Flushing" << backBufferSurface + << "to" << flushedView.layer << "of" << flushedView; - qCInfo(lcQpaBackingStore) << "Flushing" << subImage - << "to" << flushedView.layer << "of subview" << flushedView; - QCFType<CGImageRef> cgImage = subImage.toCGImage(); - flushedView.layer.contents = (__bridge id)static_cast<CGImageRef>(cgImage); - } + flushedView.layer.contents = backBufferSurface; // Since we may receive multiple flushes before a new frame is started, we do not // swap any buffers just yet. Instead we check in the next beginPaint if the layer's @@ -592,6 +575,53 @@ void QCALayerBackingStore::flush(QWindow *flushedWindow, const QRegion ®ion, // the window server. } +void QCALayerBackingStore::flushSubWindow(QWindow *subWindow) +{ + qCInfo(lcQpaBackingStore) << "Flushing sub-window" << subWindow + << "via its own backingstore"; + + auto &subWindowBackingStore = m_subWindowBackingstores[subWindow]; + if (!subWindowBackingStore) { + subWindowBackingStore.reset(new QCALayerBackingStore(subWindow)); + QObject::connect(subWindow, &QObject::destroyed, this, &QCALayerBackingStore::windowDestroyed); + subWindowBackingStore->m_clearSurfaceOnPaint = false; + } + + auto subWindowSize = subWindow->size(); + static const auto kNoStaticContents = QRegion(); + subWindowBackingStore->resize(subWindowSize, kNoStaticContents); + + auto subWindowLocalRect = QRect(QPoint(), subWindowSize); + subWindowBackingStore->beginPaint(subWindowLocalRect); + + QPainter painter(subWindowBackingStore->m_buffers.back()->asImage()); + painter.setCompositionMode(QPainter::CompositionMode_Source); + + NSView *backingStoreView = static_cast<QCocoaWindow *>(window()->handle())->view(); + NSView *flushedView = static_cast<QCocoaWindow *>(subWindow->handle())->view(); + auto subviewRect = [flushedView convertRect:flushedView.bounds toView:backingStoreView]; + auto scale = flushedView.layer.contentsScale; + subviewRect = CGRectApplyAffineTransform(subviewRect, CGAffineTransformMakeScale(scale, scale)); + + m_buffers.back()->lock(QPlatformGraphicsBuffer::SWReadAccess); + const QImage *backingStoreImage = m_buffers.back()->asImage(); + painter.drawImage(subWindowLocalRect, *backingStoreImage, QRectF::fromCGRect(subviewRect)); + m_buffers.back()->unlock(); + + painter.end(); + subWindowBackingStore->endPaint(); + subWindowBackingStore->flush(subWindow, subWindowLocalRect, QPoint()); + + qCInfo(lcQpaBackingStore) << "Done flushing sub-window" << subWindow; +} + +void QCALayerBackingStore::windowDestroyed(QObject *object) +{ + auto *window = static_cast<QWindow*>(object); + qCInfo(lcQpaBackingStore) << "Removing backingstore for sub-window" << window; + m_subWindowBackingstores.erase(window); +} + #ifndef QT_NO_OPENGL void QCALayerBackingStore::composeAndFlush(QWindow *window, const QRegion ®ion, const QPoint &offset, QPlatformTextureList *textures, bool translucentBackground) @@ -620,8 +650,11 @@ QImage QCALayerBackingStore::toImage() const void QCALayerBackingStore::backingPropertiesChanged() { - m_buffers.clear(); - m_buffers.resize(1); + qCDebug(lcQpaBackingStore) << "Updating color space of existing buffers"; + for (auto &buffer : m_buffers) { + if (buffer) + buffer->setColorSpace(colorSpace()); + } } QPlatformGraphicsBuffer *QCALayerBackingStore::graphicsBuffer() const @@ -698,10 +731,11 @@ bool QCALayerBackingStore::prepareForFlush() QCALayerBackingStore::GraphicsBuffer::GraphicsBuffer(const QSize &size, qreal devicePixelRatio, const QPixelFormat &format, QCFType<CGColorSpaceRef> colorSpace) - : QIOSurfaceGraphicsBuffer(size, format, colorSpace) + : QIOSurfaceGraphicsBuffer(size, format) , dirtyRegion(0, 0, size.width() / devicePixelRatio, size.height() / devicePixelRatio) , m_devicePixelRatio(devicePixelRatio) { + setColorSpace(colorSpace); } QImage *QCALayerBackingStore::GraphicsBuffer::asImage() @@ -721,4 +755,6 @@ QImage *QCALayerBackingStore::GraphicsBuffer::asImage() return &m_image; } +#include "moc_qcocoabackingstore.cpp" + QT_END_NAMESPACE |