Issue: This is a metal pipeline specific issue. When Metal API Validation is enabled an assertion is thrown due to invalid scissor rect being set. Please test the steps described in the ticket [JDK-8369348](https://bugs.openjdk.org/browse/JDK-8369348).
Cause: MetalContext.setClipRect() method uses the negative x,y values and later performs a negative value check. This results in a clip rect with a width and height being larger than rtt size. Fix: Moving the negative value check before first use of x and y variables. Test is not included as, it requires manually enabling Metal API Validation i.e. METAL_DEVICE_WRAPPER_TYPE Verification: Verify the issue described in the [JDK-8369348](https://bugs.openjdk.org/browse/JDK-8369348). Perform general sanity test. ------------- Commit messages: - check x,y for -ve value before use Changes: https://git.openjdk.org/jfx/pull/2078/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=2078&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8369348 Stats: 4 lines in 1 file changed: 2 ins; 2 del; 0 mod Patch: https://git.openjdk.org/jfx/pull/2078.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/2078/head:pull/2078 PR: https://git.openjdk.org/jfx/pull/2078
