If we have duplicae font files in different directories, that would
break the oss-fuzz build currently. So, rename some to avoid
name class with text-rendering-test. Would be better to find
another solution.
When hb_set_t::page_for_insert needs to insert at the end of the page_map
it ends up evaluating '&page_map[i + 1]' which has hb_vector return an
lvalue of a Crap so that nothing can be moved to its address. This turns
into issues with ThreadSanitizer on Crap when two threads modify different
hb_set_t instances. This can be avoided by using '&page_map[i] + 1'
instead.
Some fonts, like msmincho, have positive number as descent
in vhea table. That's wrong. Just enforce sign on ascent/descent
when reading both horizontal and vertical metrics.
Fixes https://github.com/harfbuzz/harfbuzz/issues/1248
Test with Apple Color Emoji.ttf of ~66MB and following sequence:
./hb-shape Apple\ Color\ Emoji-old.ttf --font-funcs=ot -u U+1F468,200d,U+1F469,200d,U+1F467,200d,1f466
Should form full family if matching works correctly. It first makes
family of three, then makes family of four out of that and the last
two characters.
Fixes https://github.com/harfbuzz/harfbuzz/issues/1292
#define Null(Type) Null<typename hb_remove_const<typename hb_remove_reference<Type>::value>::value>()
raises:
hb-blob.cc: In function 'hb_blob_t* hb_blob_get_empty()':
hb-blob.cc:194: error: using 'typename' outside of template
hb-blob.cc:194: error: using 'typename' outside of template
Removing "typename"s fixes the issue but makes newer compiler fail apparently.
Probably downstream can patch that locally till we get a solution.
Normally I would have added to_string / from_string like other types
have. But since we don't use hb_color_t much, I'm not going to do that.
Although, if we did, we could use it in hb-view to parse colors...
Doesn't work though, ouch :(. Need to figure out if it's unreasonable
to expect Null(T) inside hb_array_t<T> to see the later specialization
of Null for NameID.
COLR table has one function: return layers for a glyph, and we expose exactly
that, so should just wire it through. Also use sub_array() for verifiable
safety.
Also, BaseGlyphRecord's null object is enough. We don't need to special-case
the not-found.