75 lines
3.1 KiB
Markdown
75 lines
3.1 KiB
Markdown
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# Noto Emoji
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Color and Black-and-White Noto emoji fonts, and tools for working with them.
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**[Download Emoji Font](https://github.com/googlefonts/noto-emoji/raw/main/fonts/NotoColorEmoji.ttf)**
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## Prerequisites
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Building Noto Color Emoji requires:
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- Python 3
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- [pkg-config](https://www.freedesktop.org/wiki/Software/pkg-config/)
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- [pngquant](https://pngquant.org/)
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- [zopflipng](https://github.com/google/zopfli)
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- [cairo](https://www.cairographics.org/)
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- [imagemagick](https://imagemagick.org/)
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## Building NotoColorEmoji
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This project uses a virtual environment to manage dependencies. Use the following steps to get up and running:
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```shell
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# make sure you have the Prerequisites
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# create & activate a virtual environment
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python3 -m venv venv
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source venv/bin/activate
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# install python requirements
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pip install -r requirements.txt
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time make -j
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```
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Intermediate products (compressed image files, for example) will be put into a build subdirectory. Two fonts will be saved at the top level:
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* `NotoColorEmoji.ttf`, for general use.
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* `NotoColorEmoji_WindowsCompatible.ttf`, which is the same font but with an additional empty `glyf` table and `cmap` format 4 subtable. This is required by Windows 10 if you want to _install_ the font.
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## Using NotoColorEmoji
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NotoColorEmoji uses the CBDT/CBLC color font format, which is supported by Android
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and Chrome/Chromium OS. Windows supports it starting with Windows 10 Anniversary
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Update in Chrome and Edge. On macOS, only Chrome supports it, while on Linux it will
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support it with some fontconfig tweaking, see [issue #36](https://github.com/googlei18n/noto-emoji/issues/36). Currently we do not build other color font formats.
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## Color emoji assets
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The assets provided in the repo are all those used to build the NotoColorEmoji
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font. Note however that NotoColorEmoji often uses the same assets to represent
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different character sequences-- notably, most gender-neutral characters or
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sequences are represented using assets named after one of the gendered
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sequences. This means that some sequences appear to be missing. Definitions of
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the aliasing used appear in the emoji_aliases.txt file.
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Also note that the images in the font might differ from the original assets. In
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particular the flag images in the font are PNG images to which transforms have
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been applied to standardize the size and generate the wave and border shadow. We
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do not have SVG versions that reflect these transforms.
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## License
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Emoji fonts (under the fonts subdirectory) are under the
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[SIL Open Font License, version 1.1](fonts/LICENSE).<br/>
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Tools and most image resources are under the [Apache license, version 2.0](./LICENSE).
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Flag images under third_party/region-flags are in the public domain or
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otherwise exempt from copyright ([more info](third_party/region-flags/LICENSE)).
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## Contributing
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Please read [CONTRIBUTING](CONTRIBUTING.md) if you are thinking of contributing to this project.
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## News
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* 2017-09-13: Emoji redesign released.
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* 2015-12-09: Unicode 7 and 8 emoji image data (.png format) added.
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* 2015-09-29: All Noto fonts now licensed under the SIL Open Font License.
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