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| 1 | <!DOCTYPE html> | ||
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| 11 | <meta property="og:description" content="a static site {for, by, about} me "> | ||
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| 14 | <div class="post posts"> | ||
| 15 | <div class="date">07/08 2019</div> | ||
| 16 | <span style="font-size: 2rem; font-weight: 600"> | ||
| 17 | Bye Bye BDFs | ||
| 18 | </span> | ||
| 19 | <div class="post-text"> | ||
| 20 | <p>Glyph Bitmap Distribution Format is no more, as the creators of | ||
| 21 | <a href="https://pango.org">Pango</a>, one of the most widely used text rendering | ||
| 22 | libraries, | ||
| 23 | <a href="https://blogs.gnome.org/mclasen/2019/05/25/pango-future-directions/">announced</a> | ||
| 24 | their plans for Pango 1.44.</p> | ||
| 25 | |||
| 26 | <p>Until recently, Pango used FreeType to draw fonts. They will be moving over | ||
| 27 | to <a href="https://harfbuzz.org">Harfbuzz</a>, an evolution of FreeType.</p> | ||
| 28 | |||
| 29 | <p><em>Why?</em></p> | ||
| 30 | |||
| 31 | <p>In short, FreeType was hard to work with. It required complex logic, and | ||
| 32 | provided no advantage over Harfbuzz (other than being able to fetch | ||
| 33 | opentype metrics with ease).</p> | ||
| 34 | |||
| 35 | <p>Upgrading to Pango v1.44 will break your GTK applications (if you use a | ||
| 36 | <code>bdf</code>/<code>pcf</code> bitmap font). Harfbuzz <em>does</em> support bitmap-only OpenType fonts, | ||
| 37 | <code>otb</code>s. Convert your existing fonts over to <code>otb</code>s using | ||
| 38 | <a href="https://fontforge.github.io">FontForge</a>. It is to be noted that applications | ||
| 39 | such as <code>xterm</code> and <code>rxvt</code> use <code>xft</code> (X FreeType) to render fonts, and will | ||
| 40 | remain unaffected by the update.</p> | ||
| 41 | |||
| 42 | <p>Both <a href="https://github.com/nerdypepper/scientifica">scientifica</a> and | ||
| 43 | <a href="https://github.com/nerdypepper/curie">curie</a> will soon ship with bitmap-only | ||
| 44 | OpenType font formats.</p> | ||
| 45 | |||
| 46 | </div> | ||
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