diff options
| -rw-r--r-- | src/plugins/platforms/cocoa/qnsview.mm | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/plugins/platforms/cocoa/qnsview.mm b/src/plugins/platforms/cocoa/qnsview.mm index ba5c0ea25d..04e02a274a 100644 --- a/src/plugins/platforms/cocoa/qnsview.mm +++ b/src/plugins/platforms/cocoa/qnsview.mm @@ -516,7 +516,13 @@ static bool _q_dontOverrideCtrlLMB = false; dirtyBackingRect.size.height ); CGImageRef bsCGImage = qt_mac_toCGImage(m_backingStore->toImage()); - CGImageRef cleanImg = CGImageCreateWithImageInRect(bsCGImage, backingStoreRect); + + // Prevent potentially costly color conversion by assiging the display + // color space to the backingstore image. + CGImageRef displayColorSpaceImage = CGImageCreateCopyWithColorSpace(bsCGImage, + self.window.screen.colorSpace.CGColorSpace); + + CGImageRef cleanImg = CGImageCreateWithImageInRect(displayColorSpaceImage, backingStoreRect); // Optimization: Copy frame buffer content instead of blending for // top-level windows where Qt fills the entire window content area. @@ -531,6 +537,7 @@ static bool _q_dontOverrideCtrlLMB = false; CGImageRelease(cleanImg); CGImageRelease(subMask); CGImageRelease(bsCGImage); + CGImageRelease(displayColorSpaceImage); } - (BOOL) isFlipped |