On Mon, Sep 18, 2017 at 2:35 AM, Werner LEMBERG <[email protected]> wrote:
> > I am working on adding font variations support to cairo, and I am
> > hitting a strange problem in my tests: the first call to
> > FT_Get_MM_Var after FT_New_Face fails with an error code of 85. If
> > I simply repeat the FT_Get_MM_Var call, everything is fine and
> > things work as expected.
>
> I'm not sure whether you mean 85 or 0x85... Can you provide a MWE
> that I can compile for further testing?
>
Might take me a bit to create a freetype-only testcase. In the meantime,
here is some more details:
The cairo code I see this problem with essentially does:
FT_New_Face (font_map->ft_library,
unscaled->filename,
unscaled->id,
&face);
...
ret = FT_Get_MM_Var (face, &ft_mm_var);
if (ret != 0) {
printf ("FT_Get_MM_Var failed: %s\n", getErrorMessage (ret));
ret = FT_Get_MM_Var (face, &ft_mm_var);
if (ret == 0)
printf ("Trying again works. Odd\n");
}
and this is the output I see:
TESTING font-variations
FT_Get_MM_Var failed: invalid stream operation
Trying again works. Odd
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