NaN values in vectoriser

[jaw]

This here crashes when d[0] or d[1] is NaN which apparently can happen with some characters in some fonts. Not sure why there would be such values.

ftgl/src/FTVectoriser.cpp

Line 321 in 16f7667

gluTessVertex(tobj, const_cast<GLdouble*>(d), (GLvoid *)d);

This is where the segfault happens (inside the glu library):

ftgl/src/FTVectoriser.cpp

Line 326 in 16f7667

gluTessEndPolygon(tobj);

I have implemented a crude fix here:
vovoid@d7b50a5

[frankheckenbach]

Can you give an example which characters from which fonts, and which FTGL drawing mode and settings you used to cause the problem, so I can reproduce it?

Note that my fork (https://github.com/frankheckenbach/ftgl) seems to be the "official" one now (e.g. used in Debian). ulrichard didn't want to keep maintaining this one anymore.

[jaw]

Sure thing! You'll have it on tuesday next week.

…

On Thu, 11 Jul 2019, 23:59 frankheckenbach, ***@***.***> wrote: Can you give an example which characters from which fonts, and which FTGL drawing mode and settings you used to cause the problem, so I can reproduce it? Note that my fork (https://github.com/frankheckenbach/ftgl) seems to be the "official" one now (e.g. used in Debian). ulrichard didn't want to keep maintaining this one anymore. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#15?email_source=notifications&email_token=AAH2DZ6DVS3T33KR4HJ4I6DP66UNHA5CNFSM4IBC3KFKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGODZYDJYY#issuecomment-510670051>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAH2DZYQBJJFK5KRFKMR4MTP66UNHANCNFSM4IBC3KFA> .