diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-ot-var-hvar-table.hh')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-ot-var-hvar-table.hh | 215 |
1 files changed, 146 insertions, 69 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-var-hvar-table.hh b/src/3rdparty/harfbuzz-ng/src/hb-ot-var-hvar-table.hh index e9d90352f0..33a4e1a40e 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-ot-var-hvar-table.hh +++ b/src/3rdparty/harfbuzz-ng/src/hb-ot-var-hvar-table.hh @@ -45,7 +45,8 @@ struct index_map_subset_plan_t void init (const DeltaSetIndexMap &index_map, hb_inc_bimap_t &outer_map, hb_vector_t<hb_set_t *> &inner_sets, - const hb_subset_plan_t *plan) + const hb_subset_plan_t *plan, + bool bypass_empty = true) { map_count = 0; outer_bit_count = 0; @@ -53,55 +54,51 @@ struct index_map_subset_plan_t max_inners.init (); output_map.init (); - if (&index_map == &Null (DeltaSetIndexMap)) return; + if (bypass_empty && !index_map.get_map_count ()) return; unsigned int last_val = (unsigned int)-1; - hb_codepoint_t last_gid = (hb_codepoint_t)-1; - hb_codepoint_t gid = (hb_codepoint_t) hb_min (index_map.get_map_count (), plan->num_output_glyphs ()); + hb_codepoint_t last_gid = HB_CODEPOINT_INVALID; outer_bit_count = (index_map.get_width () * 8) - index_map.get_inner_bit_count (); max_inners.resize (inner_sets.length); for (unsigned i = 0; i < inner_sets.length; i++) max_inners[i] = 0; /* Search backwards for a map value different from the last map value */ - for (; gid > 0; gid--) + auto &new_to_old_gid_list = plan->new_to_old_gid_list; + unsigned count = new_to_old_gid_list.length; + for (unsigned j = count; j; j--) { - hb_codepoint_t old_gid; - if (!plan->old_gid_for_new_gid (gid - 1, &old_gid)) - { - if (last_gid == (hb_codepoint_t) -1) - continue; - else - break; - } + hb_codepoint_t gid = new_to_old_gid_list.arrayZ[j - 1].first; + hb_codepoint_t old_gid = new_to_old_gid_list.arrayZ[j - 1].second; unsigned int v = index_map.map (old_gid); - if (last_gid == (hb_codepoint_t) -1) + if (last_gid == HB_CODEPOINT_INVALID) { last_val = v; last_gid = gid; continue; } - if (v != last_val) break; + if (v != last_val) + break; last_gid = gid; } if (unlikely (last_gid == (hb_codepoint_t)-1)) return; - map_count = last_gid; - for (gid = 0; gid < map_count; gid++) + map_count = last_gid + 1; + for (auto _ : plan->new_to_old_gid_list) { - hb_codepoint_t old_gid; - if (plan->old_gid_for_new_gid (gid, &old_gid)) - { - unsigned int v = index_map.map (old_gid); - unsigned int outer = v >> 16; - unsigned int inner = v & 0xFFFF; - outer_map.add (outer); - if (inner > max_inners[outer]) max_inners[outer] = inner; - if (outer >= inner_sets.length) return; - inner_sets[outer]->add (inner); - } + hb_codepoint_t gid = _.first; + if (gid >= map_count) break; + + hb_codepoint_t old_gid = _.second; + unsigned int v = index_map.map (old_gid); + unsigned int outer = v >> 16; + unsigned int inner = v & 0xFFFF; + outer_map.add (outer); + if (inner > max_inners[outer]) max_inners[outer] = inner; + if (outer >= inner_sets.length) return; + inner_sets[outer]->add (inner); } } @@ -116,8 +113,6 @@ struct index_map_subset_plan_t const hb_vector_t<hb_inc_bimap_t> &inner_maps, const hb_subset_plan_t *plan) { - if (input_map == &Null (DeltaSetIndexMap)) return; - for (unsigned int i = 0; i < max_inners.length; i++) { if (inner_maps[i].get_population () == 0) continue; @@ -125,21 +120,50 @@ struct index_map_subset_plan_t if (bit_count > inner_bit_count) inner_bit_count = bit_count; } - output_map.resize (map_count); - for (hb_codepoint_t gid = 0; gid < output_map.length; gid++) + if (unlikely (!output_map.resize (map_count))) return; + for (const auto &_ : plan->new_to_old_gid_list) { - hb_codepoint_t old_gid; - if (plan->old_gid_for_new_gid (gid, &old_gid)) - { - uint32_t v = input_map->map (old_gid); - unsigned int outer = v >> 16; - output_map[gid] = (outer_map[outer] << 16) | (inner_maps[outer][v & 0xFFFF]); - } - else - output_map[gid] = 0; /* Map unused glyph to outer/inner=0/0 */ + hb_codepoint_t new_gid = _.first; + hb_codepoint_t old_gid = _.second; + + if (unlikely (new_gid >= map_count)) break; + + uint32_t v = input_map->map (old_gid); + unsigned int outer = v >> 16; + output_map.arrayZ[new_gid] = (outer_map[outer] << 16) | (inner_maps[outer][v & 0xFFFF]); } } + bool remap_after_instantiation (const hb_subset_plan_t *plan, + const hb_map_t& varidx_map) + { + /* recalculate bit_count after remapping */ + outer_bit_count = 1; + inner_bit_count = 1; + + for (const auto &_ : plan->new_to_old_gid_list) + { + hb_codepoint_t new_gid = _.first; + if (unlikely (new_gid >= map_count)) break; + + uint32_t v = output_map.arrayZ[new_gid]; + uint32_t *new_varidx; + if (!varidx_map.has (v, &new_varidx)) + return false; + + output_map.arrayZ[new_gid] = *new_varidx; + + unsigned outer = (*new_varidx) >> 16; + unsigned bit_count = (outer == 0) ? 1 : hb_bit_storage (outer); + outer_bit_count = hb_max (bit_count, outer_bit_count); + + unsigned inner = (*new_varidx) & 0xFFFF; + bit_count = (inner == 0) ? 1 : hb_bit_storage (inner); + inner_bit_count = hb_max (bit_count, inner_bit_count); + } + return true; + } + unsigned int get_inner_bit_count () const { return inner_bit_count; } unsigned int get_width () const { return ((outer_bit_count + inner_bit_count + 7) / 8); } unsigned int get_map_count () const { return map_count; } @@ -164,7 +188,7 @@ struct hvarvvar_subset_plan_t ~hvarvvar_subset_plan_t() { fini (); } void init (const hb_array_t<const DeltaSetIndexMap *> &index_maps, - const VariationStore &_var_store, + const ItemVariationStore &_var_store, const hb_subset_plan_t *plan) { index_map_plans.resize (index_maps.length); @@ -180,17 +204,13 @@ struct hvarvvar_subset_plan_t if (unlikely (!index_map_plans.length || !inner_sets.length || !inner_maps.length)) return; bool retain_adv_map = false; - index_map_plans[0].init (*index_maps[0], outer_map, inner_sets, plan); + index_map_plans[0].init (*index_maps[0], outer_map, inner_sets, plan, false); if (index_maps[0] == &Null (DeltaSetIndexMap)) { retain_adv_map = plan->flags & HB_SUBSET_FLAGS_RETAIN_GIDS; outer_map.add (0); - for (hb_codepoint_t gid = 0; gid < plan->num_output_glyphs (); gid++) - { - hb_codepoint_t old_gid; - if (plan->old_gid_for_new_gid (gid, &old_gid)) - inner_sets[0]->add (old_gid); - } + for (hb_codepoint_t old_gid : plan->glyphset()->iter()) + inner_sets[0]->add (old_gid); hb_set_union (adv_set, inner_sets[0]); } @@ -201,11 +221,11 @@ struct hvarvvar_subset_plan_t if (retain_adv_map) { - for (hb_codepoint_t gid = 0; gid < plan->num_output_glyphs (); gid++) - if (inner_sets[0]->has (gid)) - inner_maps[0].add (gid); - else - inner_maps[0].skip (); + for (const auto &_ : plan->new_to_old_gid_list) + { + hb_codepoint_t old_gid = _.second; + inner_maps[0].add (old_gid); + } } else { @@ -221,6 +241,16 @@ struct hvarvvar_subset_plan_t index_map_plans[i].remap (index_maps[i], outer_map, inner_maps, plan); } + /* remap */ + bool remap_index_map_plans (const hb_subset_plan_t *plan, + const hb_map_t& varidx_map) + { + for (unsigned i = 0; i < index_map_plans.length; i++) + if (!index_map_plans[i].remap_after_instantiation (plan, varidx_map)) + return false; + return true; + } + void fini () { for (unsigned int i = 0; i < inner_sets.length; i++) @@ -233,7 +263,7 @@ struct hvarvvar_subset_plan_t hb_inc_bimap_t outer_map; hb_vector_t<hb_inc_bimap_t> inner_maps; hb_vector_t<index_map_subset_plan_t> index_map_plans; - const VariationStore *var_store; + const ItemVariationStore *var_store; protected: hb_vector_t<hb_set_t *> inner_sets; @@ -258,6 +288,7 @@ struct HVARVVAR { TRACE_SANITIZE (this); return_trace (version.sanitize (c) && + hb_barrier () && likely (version.major == 1) && varStore.sanitize (c, this) && advMap.sanitize (c, this) && @@ -265,6 +296,9 @@ struct HVARVVAR rsbMap.sanitize (c, this)); } + const ItemVariationStore& get_var_store () const + { return this+varStore; } + void listup_index_maps (hb_vector_t<const DeltaSetIndexMap *> &index_maps) const { index_maps.push (&(this+advMap)); @@ -296,6 +330,9 @@ struct HVARVVAR bool _subset (hb_subset_context_t *c) const { TRACE_SUBSET (this); + if (c->plan->all_axes_pinned) + return_trace (false); + hvarvvar_subset_plan_t hvar_plan; hb_vector_t<const DeltaSetIndexMap *> index_maps; @@ -309,36 +346,66 @@ struct HVARVVAR out->version.major = 1; out->version.minor = 0; - if (unlikely (!out->varStore - .serialize_serialize (c->serializer, - hvar_plan.var_store, - hvar_plan.inner_maps.as_array ()))) + if (c->plan->normalized_coords) + { + item_variations_t item_vars; + if (!item_vars.instantiate (this+varStore, c->plan, + advMap == 0 ? false : true, + false, /* use_no_variation_idx = false */ + hvar_plan.inner_maps.as_array ())) + return_trace (false); + + 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); + + /* if varstore is optimized, remap output_map */ + if (advMap) + { + if (!hvar_plan.remap_index_map_plans (c->plan, item_vars.get_varidx_map ())) + return_trace (false); + } + } + else + { + if (unlikely (!out->varStore + .serialize_serialize (c->serializer, + hvar_plan.var_store, + hvar_plan.inner_maps.as_array ()))) return_trace (false); + } return_trace (out->T::serialize_index_maps (c->serializer, hvar_plan.index_map_plans.as_array ())); } - float get_advance_var (hb_codepoint_t glyph, hb_font_t *font) const + float get_advance_delta_unscaled (hb_codepoint_t glyph, + const int *coords, unsigned int coord_count, + ItemVariationStore::cache_t *store_cache = nullptr) const { uint32_t varidx = (this+advMap).map (glyph); - return (this+varStore).get_delta (varidx, font->coords, font->num_coords); + return (this+varStore).get_delta (varidx, + coords, coord_count, + store_cache); } - float get_side_bearing_var (hb_codepoint_t glyph, - const int *coords, unsigned int coord_count) const + bool get_lsb_delta_unscaled (hb_codepoint_t glyph, + const int *coords, unsigned int coord_count, + float *lsb) const { - if (!has_side_bearing_deltas ()) return 0.f; + if (!lsbMap) return false; uint32_t varidx = (this+lsbMap).map (glyph); - return (this+varStore).get_delta (varidx, coords, coord_count); + *lsb = (this+varStore).get_delta (varidx, coords, coord_count); + return true; } - bool has_side_bearing_deltas () const { return lsbMap && rsbMap; } - - protected: + public: FixedVersion<>version; /* Version of the metrics variation table * initially set to 0x00010000u */ - Offset32To<VariationStore> + Offset32To<ItemVariationStore> varStore; /* Offset to item variation store table. */ Offset32To<DeltaSetIndexMap> advMap; /* Offset to advance var-idx mapping. */ @@ -387,6 +454,16 @@ struct VVAR : HVARVVAR { bool subset (hb_subset_context_t *c) const { return HVARVVAR::_subset<VVAR> (c); } + bool get_vorg_delta_unscaled (hb_codepoint_t glyph, + const int *coords, unsigned int coord_count, + float *delta) const + { + if (!vorgMap) return false; + uint32_t varidx = (this+vorgMap).map (glyph); + *delta = (this+varStore).get_delta (varidx, coords, coord_count); + return true; + } + protected: Offset32To<DeltaSetIndexMap> vorgMap; /* Offset to vertical-origin var-idx mapping. */ |