RFR: 8369348: Failed assertion with scissor rect when Metal API Validation is enabled

[Jayathirth D V]

On Wed, 18 Feb 2026 14:59:58 GMT, Ambarish Rapte <arapte at openjdk.org> wrote:

> 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.

Marked as reviewed by jdv (Committer).

Change looks good to me.
I have verified that it resolves the issue identified while running MonkeyTester.

Also no issues seen with 3D specific tests.

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PR Review: https://git.openjdk.org/jfx/pull/2078#pullrequestreview-3826483980
PR Comment: https://git.openjdk.org/jfx/pull/2078#issuecomment-3927858613