RFR: 8269806: Emoji rendering on Linux [v20]

Nikita Gubarkov duke at openjdk.org
Wed Apr 5 14:31:34 UTC 2023


> 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

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/4798/files
  - new: https://git.openjdk.org/jdk/pull/4798/files/c1b8f9b2..624af032

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=4798&range=19
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=4798&range=18-19

  Stats: 285 lines in 1 file changed: 0 ins; 0 del; 285 mod
  Patch: https://git.openjdk.org/jdk/pull/4798.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/4798/head:pull/4798

PR: https://git.openjdk.org/jdk/pull/4798



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