diff options
Diffstat (limited to 'src/hb-ot-var-mvar-table.hh')
-rw-r--r-- | src/hb-ot-var-mvar-table.hh | 56 |
1 files changed, 55 insertions, 1 deletions
diff --git a/src/hb-ot-var-mvar-table.hh b/src/hb-ot-var-mvar-table.hh index d27ebb39c..ceabc9a3e 100644 --- a/src/hb-ot-var-mvar-table.hh +++ b/src/hb-ot-var-mvar-table.hh @@ -27,7 +27,7 @@ #ifndef HB_OT_VAR_MVAR_TABLE_HH #define HB_OT_VAR_MVAR_TABLE_HH -#include "hb-ot-layout-common.hh" +#include "hb-ot-var-common.hh" namespace OT { @@ -41,6 +41,19 @@ struct VariationValueRecord return_trace (c->check_struct (this)); } + bool subset (hb_subset_context_t *c, + const hb_map_t& varidx_map) const + { + TRACE_SUBSET (this); + auto *out = c->serializer->embed (*this); + if (unlikely (!out)) return_trace (false); + + hb_codepoint_t *new_idx; + return_trace (c->serializer->check_assign (out->varIdx, + (varidx_map.has (varIdx, &new_idx)) ? *new_idx : HB_OT_LAYOUT_NO_VARIATIONS_INDEX, + HB_SERIALIZE_ERROR_INT_OVERFLOW)); + } + public: Tag valueTag; /* Four-byte tag identifying a font-wide measure. */ VarIdx varIdx; /* Outer/inner index into VariationStore item. */ @@ -73,6 +86,47 @@ struct MVAR valueRecordSize)); } + bool subset (hb_subset_context_t *c) const + { + TRACE_SUBSET (this); +#ifdef HB_NO_VAR + return_trace (false); +#endif + + if (c->plan->all_axes_pinned) + return_trace (false); + + MVAR *out = c->serializer->start_embed (*this); + if (unlikely (!c->serializer->extend_min (out))) return_trace (false); + out->version = version; + out->reserved = reserved; + out->valueRecordSize = valueRecordSize; + out->valueRecordCount = valueRecordCount; + + item_variations_t item_vars; + const VariationStore& src_var_store = this+varStore; + + if (!item_vars.instantiate (src_var_store, c->plan)) + return_trace (false); + + /* serialize varstore */ + if (!out->varStore.serialize_serialize (c->serializer, item_vars.has_long_word (), + c->plan->axis_tags, + item_vars.get_region_list (), + item_vars.get_vardata_encodings ())) + return_trace (false); + + /* serialize value records array */ + unsigned value_rec_count = valueRecordCount; + const VariationValueRecord *record = reinterpret_cast<const VariationValueRecord*> (valuesZ.arrayZ); + for (unsigned i = 0; i < value_rec_count; i++) + { + if (!record->subset (c, item_vars.get_varidx_map ())) return_trace (false); + record++; + } + return_trace (true); + } + float get_var (hb_tag_t tag, const int *coords, unsigned int coord_count) const { |