[Libreoffice-bugs] [Bug 104030] macOS: CPU usage of the Database Wizard screen when active ( on top)

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=104030

--- Comment #8 from Telesto <telesto at surfxs.nl> ---
Created attachment 137012
  --> https://bugs.documentfoundation.org/attachment.cgi?id=137012&action=edit
Xcode instruments time profile screenshot

Could this be related to argb32_image c.q. CGSBlendRGBA8888toRGBA8888
conversion 
in the background. It shows up in the time profile

There is some talk about argb32_image on the web:

*
http://robert.ocallahan.org/2010/05/cglayer-performance-trap-with-isflipped_03.html
*
https://stackoverflow.com/questions/7560979/cgcontextdrawimage-is-extremely-slow-after-large-uiimage-drawn-into-it

And I'm seeing 'isflipped' quite a lot here:
https://opengrok.libreoffice.org/xref/core/vcl/quartz/salgdicommon.cxx

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