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[repacker] Implement AnchorMatrix::clone.

This commit is contained in:
Garret Rieger 2022-08-11 22:34:59 +00:00
parent 5ea3c0be8f
commit c9ddf0815a
1 changed files with 33 additions and 4 deletions
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37
src/graph/markbasepos-graph.hh
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@ -46,10 +46,39 @@ struct AnchorMatrix : public OT::Layout::GPOS_impl::AnchorMatrix
unsigned this_index,
const hb_hashmap_t<unsigned, unsigned>& pos_to_index,
unsigned start,
unsigned end)
unsigned end,
unsigned class_count)
{
// TODO
return -1;
unsigned base_count = rows;
unsigned new_class_count = end - start;
unsigned size = AnchorMatrix::min_size +
OT::Offset16::static_size * new_class_count * rows;
unsigned prime_id = c.create_node (size);
if (prime_id == (unsigned) -1) return -1;
AnchorMatrix* prime = (AnchorMatrix*) c.graph.object (prime_id).head;
prime->rows = base_count;
for (unsigned base = 0; base < base_count; base++)
{
for (unsigned klass = start; klass < end; klass++)
{
unsigned new_klass = klass - start;
unsigned old_index = base * class_count + klass;
unsigned new_index = base * new_class_count + new_klass;
unsigned offset_pos = (char*) &(this->matrixZ[old_index]) -
(char*) this;
unsigned* objidx;
if (pos_to_index.has (offset_pos, &objidx))
c.graph.move_child (this_index,
&(this->matrixZ[old_index]),
prime_id,
&(prime->matrixZ[new_index]));
}
}
return prime_id;
}
};
@ -325,7 +354,7 @@ struct MarkBasePosFormat1 : public OT::Layout::GPOS_impl::MarkBasePosFormat1_2<S
base_array.table->clone (sc.c,
mark_array.index,
sc.base_array_links,
start, end);
start, end, this->classCount);
graph.add_link (&(prime->baseArray), prime_id, new_base_array);
return prime_id;