gecko-dev/gfx/graphite2
Emilio Cobos Álvarez af68e1df49 Bug 1898601 - Remove fake webrtc/gkmedias libs. r=glandium,media-playback-reviewers,webrtc-reviewers,cubeb-reviewers,pehrsons,padenot
The tests referenced by gkmedias were ported to gtest. The relevant
build file was removed bug 1357328.

Differential Revision: https://phabricator.services.mozilla.com/D211680
2024-05-28 16:14:47 +00:00
..
geckoextra
include/graphite2
src Bug 1898601 - Remove fake webrtc/gkmedias libs. r=glandium,media-playback-reviewers,webrtc-reviewers,cubeb-reviewers,pehrsons,padenot 2024-05-28 16:14:47 +00:00
ChangeLog Bug 1875296 - Vendor graphite2 using mach vendor r=jfkthame 2024-01-22 08:45:20 +00:00
COPYING
LICENSE
moz.yaml Bug 1875296 - Vendor graphite2 using mach vendor r=jfkthame 2024-01-22 08:45:20 +00:00
README.md

Graphite engine

Project CI status

OS Intel 64 bit Intel 32 bit Arm 32 bit
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What is Graphite?

Graphite is a system that can be used to create “smart fonts” capable of displaying writing systems with various complex behaviors. A smart font contains not only letter shapes but also additional instructions indicating how to combine and position the letters in complex ways.

Graphite was primarily developed to provide the flexibility needed for minority languages which often need to be written according to slightly different rules than well-known languages that use the same script.

Examples of complex script behaviors Graphite can handle include:

  • contextual shaping
  • ligatures
  • reordering
  • split glyphs
  • bidirectionality
  • stacking diacritics
  • complex positioning
  • shape aware kerning
  • automatic diacritic collision avoidance

See examples of scripts with complex rendering.

Graphite system overview

The Graphite system consists of:

  • A rule-based programming language Graphite Description Language (GDL) that can be used to describe the behavior of a writing system
  • A compiler for that language
  • A rendering engine that can serve as the layout component of a text-processing application

Graphite renders TrueType fonts that have been extended by means of compiling a GDL program.

Further technical information is available on the Graphite technical overview page.