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[OT] Implement serialize() for MultiSubst

This commit is contained in:
Behdad Esfahbod 2012-09-03 23:28:34 -04:00
parent 4912030dfb
commit 1f07e3382a
2 changed files with 53 additions and 0 deletions
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10
src/hb-open-type-private.hh
View File

@ -676,6 +676,16 @@ struct GenericArrayOf
inline unsigned int get_size (void) const
{ return len.static_size + len * Type::static_size; }
inline bool serialize (hb_serialize_context_t *c,
unsigned int items_len)
{
TRACE_SERIALIZE ();
if (unlikely (!c->extend_min (*this))) return TRACE_RETURN (false);
len.set (items_len); /* TODO(serialize) Overflow? */
if (unlikely (!c->extend (*this))) return TRACE_RETURN (false);
return TRACE_RETURN (true);
}
inline bool serialize (hb_serialize_context_t *c,
const Type *items,
unsigned int items_len)

43
src/hb-ot-layout-gsub-table.hh
View File

@ -276,6 +276,16 @@ struct Sequence
return TRACE_RETURN (true);
}
inline bool serialize (hb_serialize_context_t *c,
const USHORT *glyphs,
unsigned int num_glyphs)
{
TRACE_SERIALIZE ();
if (unlikely (!c->extend_min (*this))) return TRACE_RETURN (false);
if (unlikely (!substitute.serialize (c, glyphs, num_glyphs))) return TRACE_RETURN (false);
return TRACE_RETURN (true);
}
public:
inline bool sanitize (hb_sanitize_context_t *c) {
TRACE_SANITIZE ();
@ -320,6 +330,23 @@ struct MultipleSubstFormat1
return TRACE_RETURN ((this+sequence[index]).apply (c));
}
inline bool serialize (hb_serialize_context_t *c,
const USHORT *glyphs,
unsigned int *substitute_len_list,
unsigned int num_glyphs,
const USHORT *substitute_glyphs_list)
{
TRACE_SERIALIZE ();
if (unlikely (!c->extend_min (*this))) return TRACE_RETURN (false);
if (unlikely (!coverage.serialize (c, this).serialize (c, glyphs, num_glyphs))) return TRACE_RETURN (false);
if (unlikely (!sequence.serialize (c, num_glyphs))) return TRACE_RETURN (false);
for (unsigned int i = 0; i < num_glyphs; i++) {
if (unlikely (!sequence[i].serialize (c, this).serialize (c, substitute_glyphs_list, substitute_len_list[i]))) return TRACE_RETURN (false);
substitute_glyphs_list += substitute_len_list[i];
}
return TRACE_RETURN (true);
}
inline bool sanitize (hb_sanitize_context_t *c) {
TRACE_SANITIZE ();
return TRACE_RETURN (coverage.sanitize (c, this) && sequence.sanitize (c, this));
@ -369,6 +396,22 @@ struct MultipleSubst
}
}
inline bool serialize (hb_serialize_context_t *c,
const USHORT *glyphs,
unsigned int *substitute_len_list,
unsigned int num_glyphs,
const USHORT *substitute_glyphs_list)
{
TRACE_SERIALIZE ();
if (unlikely (!c->extend_min (u.format))) return TRACE_RETURN (false);
unsigned int format = 1;
u.format.set (format);
switch (u.format) {
case 1: return TRACE_RETURN (u.format1.serialize (c, glyphs, substitute_len_list, num_glyphs, substitute_glyphs_list));
default:return TRACE_RETURN (false);
}
}
inline bool sanitize (hb_sanitize_context_t *c) {
TRACE_SANITIZE ();
if (!u.format.sanitize (c)) return TRACE_RETURN (false);