[cairo] Mis-rendered Carlito glyphs at certain scales

[suzuki toshiya]

Hi,

If you view Carlito by ftview (freetype2-demos),
everything is OK?

Regards,
mpsuzuki

Stephan Bergmann wrote:
> I discovered that at least on Fedora with 
> cairo-1.13.1-0.1.git337ab1f.fc20.x86_64 and 
> google-crosextra-carlito-fonts-1.103-0.1.20130920.fc20.noarch,
> 
>> cairo_matrix_t bad = { 68, 0, 0, 103, 0, 0 };
>> cairo_select_font_face(
>>     cr, "Carlito", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
>> cairo_set_font_matrix(cr, &good);
>> cairo_move_to(cr, 10, 200);
>> cairo_show_text(cr, "ABCDEG..");
> 
> draws mis-rendered glyphs (see 
> <http://people.redhat.com/~sbergman/carlito.png>; reproducer recycling a 
> cairo-demo at <http://people.redhat.com/~sbergman/carlito.c>), while a 
> slightly different scale of
> 
>> cairo_matrix_t good = { 69, 0, 0, 103, 0, 0 };
>> cairo_select_font_face(
>>     cr, "Carlito", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
>> cairo_set_font_matrix(cr, &good);
>> cairo_move_to(cr, 10, 400);
>> cairo_show_text(cr, "ABCDEG..");
> 
> draws good ones.
> 
> What is the most likely component to report this to, the Carlito font, 
> Cairo, or somewhere below it on the software stack?
> 
> Stephan