Desired features

• Allow define fonts by URL.
  • we need Roboto for Material UI.
  • it’s convenient to not store local copies of binaries
  • google’s fonts is nice source for start
• Allow specify font params (size, weight, italic, …)
• Specify glyphs
  • single glyphs (multiple times)
    • remapping (how?)
  • numeric range (multiple times)
    • remapping (how?)
  • named set (usually by language - acsii, simplified chinese)
• [reserved] should be able to process kerning table & drop unused data
• Easy to install & web support
  • node.js + webpack or parcel.js
• Possibility to process glyph lists from lv_i18n
  • probably not direct part of this script, but we should verify possibility of this use case.
• As usually, should allow read options from file.

Later:

• Compression. Need to experiment with algorythms. But we need basic tool implementation to start.

[puzrin]

Close - brainstorming complete. Continue in font features/spec issues.

[puzrin]

In other words, “bpp selection on the fly via #define” is attribute of default LVGL built in fonts. It’s required, no doubts. But we should not propagate it to custom fonts.

So, instead of “how to switch bpp on the fly” we can solve “how to switch LVGL built-in fonts bpp on the fly”. That’s completely different thing.