diff options
Diffstat (limited to 'src/plugins/platforms/cocoa/qcocoawindow.mm')
| -rw-r--r-- | src/plugins/platforms/cocoa/qcocoawindow.mm | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoawindow.mm b/src/plugins/platforms/cocoa/qcocoawindow.mm index 739a2b105a..3db3fc3547 100644 --- a/src/plugins/platforms/cocoa/qcocoawindow.mm +++ b/src/plugins/platforms/cocoa/qcocoawindow.mm @@ -451,7 +451,13 @@ QCocoaWindow::~QCocoaWindow() QSurfaceFormat QCocoaWindow::format() const { - return window()->requestedFormat(); + QSurfaceFormat format = window()->requestedFormat(); + + // Upgrade the default surface format to include an alpha channel. The default RGB format + // causes Cocoa to spend an unreasonable amount of time converting it to RGBA internally. + if (format == QSurfaceFormat()) + format.setAlphaBufferSize(8); + return format; } void QCocoaWindow::setGeometry(const QRect &rectIn) |