From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- gfx/graphite2/README.md | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 gfx/graphite2/README.md (limited to 'gfx/graphite2/README.md') diff --git a/gfx/graphite2/README.md b/gfx/graphite2/README.md new file mode 100644 index 0000000000..277c32777b --- /dev/null +++ b/gfx/graphite2/README.md @@ -0,0 +1,38 @@ +# Graphite engine + +## Project CI status +| OS | Intel 64 bit | Intel 32 bit | Arm 32 bit | +|---------|:------------:|:------------:|:----------:| +| Linux | [![Build Status](http://build.palaso.org/app/rest/builds/buildType:bt124/statusIcon)](http://build.palaso.org/viewType.html?buildTypeId=bt124&guest=1) | [![Build Status](http://build.palaso.org/app/rest/builds/buildType:bt123/statusIcon)](http://build.palaso.org/viewType.html?buildTypeId=bt123&guest=1) | [![Build Status](http://build.palaso.org/app/rest/builds/buildType:Graphite_Linux32bitArm/statusIcon)](http://build.palaso.org/viewType.html?buildTypeId=Graphite_Linux32bitArm&guest=1) | +| Windows | [![Build Status](http://build.palaso.org/app/rest/builds/buildType:Graphite_Windows64bit/statusIcon)](http://build.palaso.org/viewType.html?buildTypeId=Graphite_Windows64bit&guest=1) | [![Build Status](http://build.palaso.org/app/rest/builds/buildType:bt91/statusIcon)](http://build.palaso.org/viewType.html?buildTypeId=bt91&guest=1)| | + +## 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](http://scripts.sil.org/CmplxRndExamples). + +## Graphite system overview +The Graphite system consists of: + +* A rule-based programming language [Graphite Description Language](http://scripts.sil.org/cms/scripts/page.php?site_id=projects&item_id=graphite_devFont#gdl) (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](http://scripts.sil.org/cms/scripts/page.php?site_id=projects&item_id=graphite_techAbout) page. -- cgit v1.2.3