https://bugs.documentfoundation.org/show_bug.cgi?id=98879

Mark Hung <mark...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #27 from Mark Hung <mark...@gmail.com> ---
Hi,
(In reply to Hiunn-hué from comment #22)
> Created attachment 130279 [details]
> screenshot from 5.4.0.

According to the attachment, characters that use Noto Sans CJK Regular TC are
displayed with correct orientation in Linux. Although there are still residual
issues, let's create different issues for them if necessary.

With knowledge we gain about vertical writing, I'd like to suggest to create
different for the combination of 
1. Whether OpenGL is enabled
2. the characters under investigation
3. the Font under investigation, and the expectation about the result
- Whether the font support vertical writing (i.e. have vhea and vmtx table)
make differences.
- Each Font have it's own Glyph substitution table (GSUB) for vertical writing
so that we can not expect same character have the same result among different
fonts in vertical writing. It should be verified against font design first.
Intuition about the result or past expectation isn't always correct.

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