https://bugs.documentfoundation.org/show_bug.cgi?id=145988

--- Comment #58 from Patrick Luby <plub...@neooffice.org> ---
(In reply to خالد حسني from comment #57)
> With Skia/Metal: https://paste.debian.net/1265585/
> With Skia/Raster: https://paste.debian.net/1265583/

Thank you for running the patch. The bad news, your output is the same as mine:
both machines are using the same pixel format and alpha types.

Looking at the Skia source is a bit overwhelming so I am going to see if I can
implement a test when loading Skia/Metal. @Luboš Luñák already does a test at
launch so if can detect something unique on machines that have this bug, I can
then force LibreOffice to switch to Skia/Raster.

The following patch prints out some debug messages that will tell me if your
machine has drawn red, green, blue, or alpha in an unexpected byte within the
pixel:

https://gerrit.libreoffice.org/c/core/+/144814/5

Can you apply the patch and post the Terminal messages? There should only be 8
messages:

./instdir/LibreOfficeDev.app/Contents/MacOS/soffice 2>&1 | grep
vcl.skia.colortest

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