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[glyf] Avoid a SubsetGlyph copy

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Unfortunately hb_second() always does a copy...
This commit is contained in:
Behdad Esfahbod 2023-06-02 13:34:58 -06:00
parent 33ea8b5e5d
commit 0e0110e7f2
1 changed files with 3 additions and 7 deletions
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10
src/OT/glyf/glyf.hh
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@ -54,8 +54,8 @@ struct glyf
TRACE_SERIALIZE (this);
unsigned init_len = c->length ();
for (const auto &_ : it)
if (unlikely (!_.serialize (c, use_short_loca, plan)))
for (auto &_ : it)
if (unlikely (!_.second.serialize (c, use_short_loca, plan)))
return false;
/* As a special case when all glyph in the font are empty, add a zero byte
@ -136,11 +136,7 @@ struct glyf
padded_offsets.arrayZ[i] = 0;
}
auto it =
+ hb_iter (glyphs)
| hb_map (hb_second)
;
bool result = glyf_prime->serialize (c->serializer, it, use_short_loca, c->plan);
bool result = glyf_prime->serialize (c->serializer, glyphs, use_short_loca, c->plan);
if (c->plan->normalized_coords && !c->plan->pinned_at_default)
_free_compiled_subset_glyphs (glyphs);