RFR: 8273355: Lanai: Flickering on tooltip appearance IntelliJ IDEA 2021.2.1

[Alexey Ushakov]

On Sun, 5 Sep 2021 11:49:18 GMT, Alexey Ushakov <avu at openjdk.org> wrote:

>> src/java.desktop/macosx/classes/sun/lwawt/LWWindowPeer.java line 295:
>> 
>>> 293:             // Set correct background for a window before making it visible
>>> 294:             platformWindow.setOpaque(!isTranslucent());
>>> 295:         }
>> 
>> This looks as if it will affect OpenGL as well as Metal.
>> Do you see the flckering with both pipelines ?
>> What testing have you done with both of them ?
>
> Yes, it affects both pipelines, but flickering was noticed only with Metal. I've tried IDEA on both pipelines and I've run desktop tests only with Metal. I'm going to run desktop ones with OGL too.

OGL desktop tests are OK.

> This looks as if it will affect OpenGL as well as Metal.
> Do you see the flckering with both pipelines ?
> What testing have you done with both of them ?

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PR: https://git.openjdk.java.net/jdk/pull/5373