RFR: 8269806: Emoji rendering on Linux

[Phil Race]

On Thu, 15 Jul 2021 17:29:01 GMT, Nikita Gubarkov <duke at openjdk.java.net> wrote:

> It was implemented in JetBrains Runtime a year ago and was ported & refactored for this PR
> It includes:
> - Bitmap glyph loading via Freetype
> - Manual scaling & transformation of bitmap glyphs with nearest-neighbor or bilinear-mipmap style algorithms depending on the text antialiasing hint
> - Storing BGRA glyphs in glyph cache & rendering them as plain images, as currently used XRender text drawing functions doesn't support colored glyphs
> - Small fixes in related code like null-checks which could cause NPE & comment typos

It didn't build for me and it didn't work for me  - on X11. So is there an update or should it be returned to draft or handed off to someone else ?

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PR: https://git.openjdk.java.net/jdk/pull/4798