[cairo-bugs] [Bug 22356] Spurious "out of memory" error on system without fonts

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Jun 19 03:25:03 PDT 2009


Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk>  2009-06-19 03:25:00 PST ---
Thanks for the bug report, it reminded that one of the arguments for including
a builtin font was precisely so we could fallback and always show text (even if
it was completely the wrong font!)

The fix is relatively easy for 1.9, but requires a fair bit more backporting
for 1.8. I'm not sure the necessity justifies the extra risk.

commit d3330d7beba0e0d2543e40a0e0e4d81ea9a78b45
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Fri Jun 19 11:15:30 2009 +0100

    [ft] Substitute twin if there are no fonts

    Fixes bug 22356 -- Spurious "out of memory" error on system without fonts

    If FcFontMatch() fails, then it means that there are no fonts available on
    the system (or it may have been a malloc error, we have no way of telling).
    Instead of report NO_MEMORY and disabling all drawing, one of the
    rationales for including a builtin font was so that we could continue even
    in the face of this error and show *something* to the user. (This being a
    last resort (and especially important for demos!) and hopefully easier to
    diagnose than no output at all.)

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