With @font-face, SVG fonts only work as primary, non-segmented

• Component: SVG
• Status: RESOLVED FIXED

When used in @font-face, SVG fonts don’t work as a fallback font or in conjunction with other sources for the same family, segmented by Unicode-range. The problem is that the Font methods, e.g. drawText(), check the primary font for SVG-ness and take an entirely different code path for that case.

<rdar://problem/7449131>

One particular nasty issue was discovered by Joseph Pecoraro: GlyphPage::fill() can get called with an SVG font, even though SVG fonts don’t use the glyph cache, if the primary font is non-SVG, but there are SVG segments (apparently one way this can happen is if the SVG font is still loading or failed to load).

[Joseph Pecoraro]

(In reply to comment #2)
> One particular nasty issue was discovered by Joseph Pecoraro: GlyphPage::fill()
> can get called with an SVG font, even though SVG fonts don’t use the glyph
> cache, if the primary font is non-SVG, but there are SVG segments (apparently
> one way this can happen is if the SVG font is still loading or failed to load).

I opened a separate bug on my issue, because I don't think it would entirely fix this bug:
https://bugs.webkit.org/show_bug.cgi?id=38530

[Nikolas Zimmermann]

Changed component to SVG, so it shows up in my all-svg-bugs search.

See also bug 34236.

[Nikolas Zimmermann]

Fixed in r89233.