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Add glyph-index and shaped-run rasterization APIs - for easier ligature rendering #116

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Add fcft_rasterize_glyph_index() for rasterizing by FreeType glyph index with caching, and fcft_rasterize_shaped_run() which shapes a codepoint array with HarfBuzz and returns individually-cached glyphs per input position.

Falls back to fcft_rasterize_char_utf32 for characters missing from the primary font.

Add fcft_rasterize_glyph_index() for rasterizing by FreeType glyph index with caching, and fcft_rasterize_shaped_run() which shapes a codepoint array with HarfBuzz and returns individually-cached glyphs per input position. Falls back to fcft_rasterize_char_utf32 for characters missing from the primary font.
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2026年02月21日 13:08:05 +01:00 Compare
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Hi, still me :) I have tested your changes and for the text they work great.
It seems there are some remaining issues with Nerd-Font icons, which are rendered truncated, see attachments. This happens both with Fira Code and Maple Mono (which, BTW, is a very nice font!). I played a bit with foot tweaks with no luck, maybe I am doing something wrong? I seem to remember I had a similar problem with st terminal back in the days when ligature support was added, but I do not remember how it was eventually fixed.
Thanks!

Hi, still me :) I have tested your changes and for the text they work great. It seems there are some remaining issues with `Nerd-Font` icons, which are rendered truncated, see attachments. This happens both with `Fira Code` and `Maple Mono` (which, BTW, is a very nice font!). I played a bit with `foot` tweaks with no luck, maybe I am doing something wrong? I seem to remember I had a similar problem with `st` terminal back in the days when ligature support was added, but I do not remember how it was eventually fixed. Thanks!
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@_fe wrote in #116 (comment):

It seems there are some remaining issues with Nerd-Font icons, which are rendered truncated, see attachments.

You are right! This was fixed on the foot side (right-to-left rendering for non-ligatures, like in original code).

@_fe wrote in https://codeberg.org/dnkl/fcft/pulls/116#issuecomment-10866905: > It seems there are some remaining issues with `Nerd-Font` icons, which are rendered truncated, see attachments. You are right! This was fixed on the foot side (right-to-left rendering for non-ligatures, like in original code).
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2026年02月27日 15:17:42 +01:00 Compare
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Fixed rendering of /dev/random:

  • Malformed characters are skipped instead of terminating the process
  • Locking added when rendering in ligature codepath
Fixed rendering of /dev/random: * Malformed characters are skipped instead of terminating the process * Locking added when rendering in ligature codepath
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2026年05月21日 17:29:31 +02:00 Compare
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Rebased to current version, no conflicts on fcft side (foot part will have some).

Rebased to current version, no conflicts on fcft side (foot part will have some).
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