diff options
Diffstat (limited to 'src/plugins/platforms/cocoa/qnsview_drawing.mm')
| -rw-r--r-- | src/plugins/platforms/cocoa/qnsview_drawing.mm | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/plugins/platforms/cocoa/qnsview_drawing.mm b/src/plugins/platforms/cocoa/qnsview_drawing.mm index cb1799b039..d2e6f848a0 100644 --- a/src/plugins/platforms/cocoa/qnsview_drawing.mm +++ b/src/plugins/platforms/cocoa/qnsview_drawing.mm @@ -154,6 +154,7 @@ << "due to being" << ([self layerExplicitlyRequested] ? "explicitly requested" : [self shouldUseMetalLayer] ? "needed by surface type" : "enabled by macOS"); [super setLayer:layer]; + layer.delegate = self; } - (NSViewLayerContentsRedrawPolicy)layerContentsRedrawPolicy @@ -188,6 +189,15 @@ - (void)displayLayer:(CALayer *)layer { + if (!NSThread.isMainThread) { + // Qt is calling AppKit APIs such as -[NSOpenGLContext setView:] on secondary threads, + // which we shouldn't do. This may result in AppKit (wrongly) triggering a display on + // the thread where we made the call, so block it here and defer to the main thread. + qCWarning(lcQpaDrawing) << "Display non non-main thread! Deferring to main thread"; + dispatch_async(dispatch_get_main_queue(), ^{ self.needsDisplay = YES; }); + return; + } + Q_ASSERT(layer == self.layer); if (!m_platformWindow) |