bug#39340: 26.3; "Noto Emoji" font not displayed

[Robert Pluim]

>>>>> On Mon, 03 Feb 2020 20:22:59 +0200, Eli Zaretskii <eliz@gnu.org> said:

    >> From: Robert Pluim <rpluim@gmail.com>
    >> Cc: 39340@debbugs.gnu.org,  ynyaaa@gmail.com
    >> Date: Mon, 03 Feb 2020 19:03:12 +0100
    >> 
    >> font-log with the attached patch applied is below. Basically
    fontp-> driver->has_char and fontp->driver->encode_char are both
    >> failing for Ebrima when uniscribe is used. When harfbuzz is used, only
    >> has_char fails, but encode_char succeeds (see second attachment)

    Eli> has_char always fails in w32 font backends, so that's expected.
    Eli> encode_char is the problem.  Can you tell where in
    Eli> uniscribe_encode_char do we fail? does ScriptItemize fail or is it
    Eli> ScriptShape?

It looks like ScriptShape is failing.

    Eli> This could be a symptom of Microsoft deprecating Uniscribe.

Then we should deprecate it as well, no?

Robert