diff options
Diffstat (limited to 'thirdparty/harfbuzz/src/hb-ot-var-cvar-table.hh')
| -rw-r--r-- | thirdparty/harfbuzz/src/hb-ot-var-cvar-table.hh | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/thirdparty/harfbuzz/src/hb-ot-var-cvar-table.hh b/thirdparty/harfbuzz/src/hb-ot-var-cvar-table.hh index 7fd0f1d79d..de54339301 100644 --- a/thirdparty/harfbuzz/src/hb-ot-var-cvar-table.hh +++ b/thirdparty/harfbuzz/src/hb-ot-var-cvar-table.hh @@ -27,6 +27,7 @@ #define HB_OT_VAR_CVAR_TABLE_HH #include "hb-ot-var-common.hh" +#include "hb-ot-var-fvar-table.hh" namespace OT { @@ -51,6 +52,27 @@ struct cvar const TupleVariationData* get_tuple_var_data (void) const { return &tupleVariationData; } + bool decompile_tuple_variations (unsigned axis_count, + unsigned point_count, + bool is_gvar, + const hb_map_t *axes_old_index_tag_map, + TupleVariationData::tuple_variations_t& tuple_variations /* OUT */) const + { + hb_vector_t<unsigned> shared_indices; + TupleVariationData::tuple_iterator_t iterator; + unsigned var_data_length = tupleVariationData.get_size (axis_count); + hb_bytes_t var_data_bytes = hb_bytes_t (reinterpret_cast<const char*> (get_tuple_var_data ()), var_data_length); + if (!TupleVariationData::get_tuple_iterator (var_data_bytes, axis_count, this, + shared_indices, &iterator)) + return false; + + return tupleVariationData.decompile_tuple_variations (point_count, is_gvar, iterator, + axes_old_index_tag_map, + shared_indices, + hb_array<const F2DOT14> (), + tuple_variations); + } + static bool calculate_cvt_deltas (unsigned axis_count, hb_array_t<int> coords, unsigned num_cvt_item, @@ -104,6 +126,53 @@ struct cvar return true; } + + bool serialize (hb_serialize_context_t *c, + TupleVariationData::tuple_variations_t& tuple_variations) const + { + TRACE_SERIALIZE (this); + if (unlikely (!c->embed (version))) return_trace (false); + + return_trace (tupleVariationData.serialize (c, false, tuple_variations)); + } + + bool subset (hb_subset_context_t *c) const + { + TRACE_SUBSET (this); + if (c->plan->all_axes_pinned) + return_trace (false); + + /* subset() for cvar is called by partial instancing only, we always pass + * through cvar table in other cases */ + if (!c->plan->normalized_coords) + { + unsigned axis_count = c->plan->source->table.fvar->get_axis_count (); + unsigned total_size = min_size + tupleVariationData.get_size (axis_count); + char *out = c->serializer->allocate_size<char> (total_size); + if (unlikely (!out)) return_trace (false); + + hb_memcpy (out, this, total_size); + return_trace (true); + } + + OT::TupleVariationData::tuple_variations_t tuple_variations; + unsigned axis_count = c->plan->axes_old_index_tag_map.get_population (); + + const hb_tag_t cvt = HB_TAG('c','v','t',' '); + hb_blob_t *cvt_blob = hb_face_reference_table (c->plan->source, cvt); + unsigned point_count = hb_blob_get_length (cvt_blob) / FWORD::static_size; + + if (!decompile_tuple_variations (axis_count, point_count, false, + &(c->plan->axes_old_index_tag_map), + tuple_variations)) + return_trace (false); + + tuple_variations.instantiate (c->plan->axes_location); + if (!tuple_variations.compile_bytes (c->plan->axes_index_map, c->plan->axes_old_index_tag_map)) + return_trace (false); + + return_trace (serialize (c->serializer, tuple_variations)); + } static bool add_cvt_and_apply_deltas (hb_subset_plan_t *plan, const TupleVariationData *tuple_var_data, |