diff options
Diffstat (limited to 'src/plugins/platforms/cocoa/qcocoabackingstore.mm')
-rw-r--r-- | src/plugins/platforms/cocoa/qcocoabackingstore.mm | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoabackingstore.mm b/src/plugins/platforms/cocoa/qcocoabackingstore.mm index e786ecb5a5..c381f87844 100644 --- a/src/plugins/platforms/cocoa/qcocoabackingstore.mm +++ b/src/plugins/platforms/cocoa/qcocoabackingstore.mm @@ -273,18 +273,6 @@ void QNSWindowBackingStore::redrawRoundedBottomCorners(CGRect windowRect) const // ---------------------------------------------------------------------------- -// https://stackoverflow.com/a/52722575/2761869 -template<class R> -struct backwards_t { - R r; - constexpr auto begin() const { using std::rbegin; return rbegin(r); } - constexpr auto begin() { using std::rbegin; return rbegin(r); } - constexpr auto end() const { using std::rend; return rend(r); } - constexpr auto end() { using std::rend; return rend(r); } -}; -template<class R> -constexpr backwards_t<R> backwards(R&& r) { return {std::forward<R>(r)}; } - QCALayerBackingStore::QCALayerBackingStore(QWindow *window) : QPlatformBackingStore(window) { @@ -534,6 +522,21 @@ void QCALayerBackingStore::composeAndFlush(QWindow *window, const QRegion ®io } #endif +QImage QCALayerBackingStore::toImage() const +{ + if (!const_cast<QCALayerBackingStore*>(this)->prepareForFlush()) + return QImage(); + + // We need to make a copy here, as the returned image could be used just + // for reading, in which case it won't detach, and then the underlying + // image data might change under the feet of the client when we re-use + // the buffer at a later point. + m_buffers.back()->lock(QPlatformGraphicsBuffer::SWReadAccess); + QImage imageCopy = m_buffers.back()->asImage()->copy(); + m_buffers.back()->unlock(); + return imageCopy; +} + QPlatformGraphicsBuffer *QCALayerBackingStore::graphicsBuffer() const { return m_buffers.back().get(); |