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[subset] Fix loca generation, was previously writing the original glyph starting offset.

This commit is contained in:
Garret Rieger 2018-02-12 11:38:28 -08:00
parent a5713bc2cb
commit e8318188c0
1 changed files with 4 additions and 2 deletions
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6
src/hb-subset-glyf.cc
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@ -86,6 +86,7 @@ _write_glyf_and_loca_prime (const OT::glyf::accelerator_t &glyf,
hb_codepoint_t new_glyph_id = 0;
unsigned int current_offset = 0;
unsigned int end_offset = 0;
for (unsigned int i = 0; i < glyph_ids.len; i++) {
unsigned int start_offset;
@ -96,15 +97,16 @@ _write_glyf_and_loca_prime (const OT::glyf::accelerator_t &glyf,
int length = end_offset - start_offset;
memcpy (glyf_prime_data_next, glyf_data + start_offset, length);
_write_loca_entry (i, start_offset, use_short_loca, loca_prime_data);
_write_loca_entry (i, current_offset, use_short_loca, loca_prime_data);
glyf_prime_data_next += length;
current_offset += length;
new_glyph_id++;
}
// Add the last loca entry which doesn't correspond to a specific glyph
// but identifies the end of the last glyphs data.
_write_loca_entry (new_glyph_id, end_offset, use_short_loca, loca_prime_data);
_write_loca_entry (new_glyph_id, current_offset, use_short_loca, loca_prime_data);
return true;
}