RFR: 8269806: Emoji rendering on Linux [v20]

[Hiroshi Miura]

On Wed, 5 Apr 2023 14:31:34 GMT, Nikita Gubarkov <ngubarkov at openjdk.org> 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
>
> Nikita Gubarkov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   EmojiFont CRLF -> LF

🌞

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PR Comment: https://git.openjdk.org/jdk/pull/4798#issuecomment-1676319060