The current implementation of screen capture with ScreenCast has some shortcomings in handling ui scale.
This changeset includes: * sun.java2d.uiScale value is now taken into account * screen data streams from ScreenCast are provided in native screen resolution regardless of the scale set in the system. Now we take that into account and resize the image accordingly. * We are now trying all available `restore_token`, since it is is tied to the display, but not to its resolution. * Skips the gtk2 part of the ScreenCaptureGtkTest as it is not supported. Following tests are no longer failing on Wayland: java/awt/Robot/HiDPIScreenCapture/HiDPIRobotScreenCaptureTest.java java/awt/Robot/HiDPIScreenCapture/ScreenCaptureGtkTest.java java/awt/Robot/HiDPIScreenCapture/ScreenCaptureTest.java Other testing also looks good, including manual testing with various scales set in the system(including fractional scaling). ------------- Commit messages: - initial Changes: https://git.openjdk.org/jdk/pull/16027/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16027&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8309621 Stats: 235 lines in 8 files changed: 168 ins; 48 del; 19 mod Patch: https://git.openjdk.org/jdk/pull/16027.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/16027/head:pull/16027 PR: https://git.openjdk.org/jdk/pull/16027
