[cairo] patch for crash in cairo-ft-font.c

[Owen Taylor]

On Mon, 2005-05-09 at 16:31 -0400, Owen Taylor wrote:
> On Fri, 2005-05-06 at 09:48 +1200, Robert O'Callahan wrote:
> > Yesterday I encountered a crash in  _cairo_ft_unscaled_font_create_glyph
> > --- in "glyphslot = unscaled->face->glyph", unscaled->face is null. The
> > attached patch fixes it and appears logical although I'll be the first
> > to admit I haven't really understood this code.
> 
> Ah. I see, if you are neither locking the face yourself (as Pango
> does in many cases) or letting Cairo convert text=>glyphs (which
> locks the face), you will end up there with unscaled->face == NULL
> in some cases.
> 
> I'll apply something like this (should be face->glyph, not 
> unscaled->face->glyph, but it's basically right)

Fix applied.
					Owen

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