Our Quartz code sure doesn't handle such bitmaps, as far as I know.
(Yeah, iOS itself of course handles such bitmaps with included alpha
(both the venerable Core Graphics stuff, not to mention all kinds of
more modern things), but not our code.)
This does not fix the bug in question, but clearly setting
mbSupportsBitmap32 for iOS was unintentional. (It is possible that it
would be relatively easy to just fix our Quartz code to actually
handle such bitmaps. Then mbSupportsBitmap32 could be turned on again.
Later.)
Change-Id: I278a4c1ad1c3e882a769d9d054f3f19e1a976666
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/98881
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Tor Lillqvist <tml@collabora.com>
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/98884
Tested-by: Jenkins
837879ec7b