[Devel] Re: Font transforms and autohinter...

[Angus Duggan]

Tom Kacvinsky writes:
>It will be interesting to see what the PDF Reference Manual has to say about
>this.

Nothing. The word "invertible" doesn't appear in the second edition PDF
manual at all.

>Anyway, I think I'll try to cook up a test in FT2 to make sure we don't call
>FT_Matrix_Invert for a non-invertible matrix.  If the matrix in question is
>non-invertible, make the glyph loader fail, or some such.

Easiest to make it fail when you find it's non-invertible (the determinant is
zero).

a.