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104 lines
4.9 KiB
Markdown
104 lines
4.9 KiB
Markdown
[](https://github.com/harfbuzz/harfbuzz/workflows/linux-ci/badge.svg)
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[](https://circleci.com/gh/harfbuzz/harfbuzz/tree/main)
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[](https://oss-fuzz-build-logs.storage.googleapis.com/index.html)
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[](https://scan.coverity.com/projects/harfbuzz)
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[](https://app.codacy.com/gh/harfbuzz/harfbuzz/dashboard?utm_source=gh&utm_medium=referral&utm_content=&utm_campaign=Badge_grade)
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[](https://codecov.io/gh/harfbuzz/harfbuzz)
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[](https://repology.org/project/harfbuzz/versions)
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[](https://securityscorecards.dev/viewer/?uri=github.com/harfbuzz/harfbuzz)
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# HarfBuzz
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HarfBuzz is a text shaping engine. It primarily supports [OpenType][1], but also
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[Apple Advanced Typography][2]. HarfBuzz is used in Android, Chrome,
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ChromeOS, Firefox, GNOME, GTK+, KDE, Qt, LibreOffice, OpenJDK, XeTeX,
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PlayStation, Microsoft Edge, Adobe Photoshop, Illustrator, InDesign,
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Godot Engine, Unreal Engine, and other places.
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[](https://xkcd.com/2347/)
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For bug reports, mailing list, and other information please visit:
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http://harfbuzz.org/
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For license information, see [COPYING](COPYING).
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## Documentation
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For user manual as well as API documentation, check: https://harfbuzz.github.io
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## Download
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For tarball releases of HarfBuzz, look [here][3]. At the same place you
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will also find Win32/Win64 binary bundles that include `libharfbuzz` DLL,
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`hb-view.exe`, `hb-shape.exe`, and all dependencies.
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The canonical source tree is available on [github][4].
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The API that comes with `hb.h` will not change incompatibly. Other, peripheral,
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headers are more likely to go through minor modifications, but again, we do our
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best to never change API in an incompatible way. We will never break the ABI.
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If you are not sure whether Pango or HarfBuzz is right for you, read [Pango vs
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HarfBuzz][5].
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## Development
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For build information, see [BUILD.md](BUILD.md).
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For custom configurations, see [CONFIG.md](CONFIG.md).
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For testing and profiling, see [TESTING.md](TESTING.md).
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To get a better idea of where HarfBuzz stands in the text rendering stack you
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may want to read [State of Text Rendering 2024][6].
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Here are a few presentation slides about HarfBuzz at the
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Internationalization and Unicode Conference over the years:
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* November 2014, [Unicode, OpenType, and HarfBuzz: Closing the Circle][7],
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* October 2012, [HarfBuzz, The Free and Open Text Shaping Engine][8],
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* October 2009, [HarfBuzz: the Free and Open Shaping Engine][9].
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Both development and user support discussion around HarfBuzz happens on the
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[github][4].
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To report bugs or submit patches please use [github][4] issues and
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pull-requests.
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For a comparison of old vs new HarfBuzz memory consumption see [this][10].
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<!--See past and upcoming [HarfBuzz Hackfests](https://freedesktop.org/wiki/Software/HarfBuzz/Hackfests/)!-->
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## Name
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HarfBuzz (حرفباز) is the literal Persian translation of “[OpenType][1]”,
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transliterated using the Latin script. It also means "talkative" or
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"glib" (also a nod to the GNOME project where HarfBuzz originates from).
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> Background: Originally there was this font format called TrueType. People and
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> companies started calling their type engines all things ending in Type:
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> FreeType, CoolType, ClearType, etc. And then came OpenType, which is the
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> successor of TrueType. So, for my OpenType implementation, I decided to stick
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> with the concept but use the Persian translation. Which is fitting given that
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> Persian is written in the Arabic script, and OpenType is an extension of
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> TrueType that adds support for complex script rendering, and HarfBuzz is an
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> implementation of OpenType complex text shaping.
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<details>
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<summary>Packaging status of HarfBuzz</summary>
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[](https://repology.org/project/harfbuzz/versions)
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</details>
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[1]: https://docs.microsoft.com/en-us/typography/opentype/spec/
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[2]: https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6AATIntro.html
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[3]: https://github.com/harfbuzz/harfbuzz/releases
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[4]: https://github.com/harfbuzz/harfbuzz
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[5]: http://mces.blogspot.com/2009/11/pango-vs-harfbuzz.html
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[6]: http://behdad.org/text2024
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[7]: https://goo.gl/FSIQuC
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[8]: https://goo.gl/2wSRu
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[9]: http://behdad.org/download/Presentations/slippy/harfbuzz_slides.pdf
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[10]: https://goo.gl/woyty
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