tinyfontgen

Generate a font file for tinyfont project.

• https://tinygo.org/x/tinyfont

Description

By default, all ASCII characters are included.
To save font flash size, you can delete the output Glyph on a line-by-line basis.
If you want to include non-ASCII characters, you can use one of the following methods

• Specify the -all option to output all characters contained in the bdf font.
• Outputs all characters contained in the string specified by -string
• Output all characters in the file specified by -string-file.

usage: tinyfontgen [flags] [path ...]
  -all
        include all ascii glyphs (codepoint <= 255) in the font
  -ascii
        include all glyphs in the font (default true)
  -fontname string
        font name (default "TinyFont")
  -output string
        output path
  -package string
        package name (default "main")
  -string string
        strings for font
  -string-file value
        strings file for font (can be set multiple times)
  -verbose
        run verbosely
  -yadvance int
        new line distance

Examples

Noto Emoji

Google's font

• note: Noto Color Emoji does not work
• https://www.google.com/get/noto/#emoji-zsye
• http://sofia.nmsu.edu/~mleisher/Software/otf2bdf/

// First, convert fonts with otf2bdf
$ ./otf2bdf -o NotoEmoji-Regular-12pt.bdf NotoEmoji-Regular.ttf -p 12pt -r 75dpi
$ ./otf2bdf -o NotoEmoji-Regular-16pt.bdf NotoEmoji-Regular.ttf -p 16pt -r 75dpi
$ ./otf2bdf -o NotoEmoji-Regular-20pt.bdf NotoEmoji-Regular.ttf -p 20pt -r 75dpi

$ tinyfontgen --package notoemoji --fontname NotoEmojiRegular12pt NotoEmoji-Regular-12pt.bdf --output NotoEmoji-Regular-12pt.go --all --verbose
Approx. 3131 bytes

$ tinyfontgen --package notoemoji --fontname NotoEmojiRegular16pt NotoEmoji-Regular-16pt.bdf --output NotoEmoji-Regular-16pt.go --all --verbose
Approx. 4551 bytes

$ tinyfontgen --package notoemoji --fontname NotoEmojiRegular20pt NotoEmoji-Regular-20pt.bdf --output NotoEmoji-Regular-20pt.go --all --verbose
Approx. 6453 bytes

M+ BITMAP FONTS

M+ BITMAP FONTS were designed to be simple and highly readable.
It incorporates all Kanji (Chinese character in Japanese) until
level 2 (the one described in JISX0208).

• https://mplus-fonts.osdn.jp/
  • https://mplus-fonts.osdn.jp/mplus-bitmap-fonts/

// ascii
$ tinyfontgen.exe --package mplus --fontname mplus_j10b_iso mplus_j10r-iso-W4 --output mplus_j10b_iso.go --verbose
Approx. 3569 bytes

// ascii
$ tinyfontgen.exe --package mplus --fontname mplus_j10r mplus_j10r-iso-W4 mplus_j10r.bdf --output mplus_j10r.go --verbose
Approx. 3569 bytes

// ascii + all jisx0208
$ tinyfontgen.exe --package mplus --fontname mplus_j10r mplus_j10r-iso-W4 mplus_j10r.bdf --output mplus_j10r.go --verbose --all
Approx. 161526 bytes

// ascii + two char (\u4e16 + \u754c)
$ tinyfontgen.exe --package mplus --fontname mplus_j10r mplus_j10r-iso-W4 mplus_j10r.bdf --output mplus_j10r.go --verbose --string "世界"
Approx. 3615 bytes

// ' ' + 'e' + 'h' + 'l' + 'o' + \u4e16 + \u754c
$ tinyfontgen.exe --package mplus --fontname mplus_j10r mplus_j10r-iso-W4 mplus_j10r.bdf --output mplus_j10r.go --verbose --string "hello 世界" --ascii=false
Approx. 127 bytes

Installation

go install tinygo.org/x/tinyfont/cmd/tinyfontgen@latest

License

This project is licensed under the BSD 3-clause license, just like the Go project itself.