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[Devel] Re: Font transforms and autohinter...
From: |
Tom Kacvinsky |
Subject: |
[Devel] Re: Font transforms and autohinter... |
Date: |
Fri, 22 Dec 2000 08:08:00 -0500 (EST) |
Hi,
On Fri, 22 Dec 2000, Werner LEMBERG wrote:
>
> > 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.
>
> But the test whether a matrix can be inverted is already in
> FT_Matrix_Invert(). You probably mean to check for error codes,
> right?
>
After checking the code last night, I came to the conclusion you came to: check
for errors. We have to do this in the native glyph loaders also, becuase they
too can apply a non-invertible glyph transform to the glyphs.
Tom