JUCE

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Detailed steps on how to reproduce the bug

I noticed after upgrading from the 6.1.2 to the 6.1.6 version of JUCE that the UI responsiveness of the debug build of my application rendered it almost unusable. There is a significant amount of animation going on however I have not experienced this type of behaviour before. In a release build - there was no user-apparent impact.

For details and discussion see https://forum.juce.com/t/dropshadower-impacting-performance-recent-juce-change/51809

What is the expected behaviour?

A responsive UI. No noticeable delay between buttons being pressed and listener code being called.

On observation - a 50% CPU load was being reported from juce_DropShadower.cpp - timerCallback - in particular from the invocation of ::isWindowOnCurrentVirtualDesktop.

Reverting to 6.1.2, this CPU load vanishes.

Operating systems

Windows

What versions of the operating systems?

10.0.19044 Build 19044

Architectures

x86_64

Stacktrace

n/a

Plug-in formats (if applicable)

No response

Plug-in host applications (DAWs) (if applicable)

No response

Testing on the develop branch

I have not tested against the develop branch

Code of Conduct

• [X] I agree to follow the Code of Conduct