diff options
Diffstat (limited to 'gfx/harfbuzz/src/hb-ot-layout-base-table.hh')
| -rw-r--r-- | gfx/harfbuzz/src/hb-ot-layout-base-table.hh | 284 |
1 files changed, 278 insertions, 6 deletions
diff --git a/gfx/harfbuzz/src/hb-ot-layout-base-table.hh b/gfx/harfbuzz/src/hb-ot-layout-base-table.hh index a23b6377d1..0278399069 100644 --- a/gfx/harfbuzz/src/hb-ot-layout-base-table.hh +++ b/gfx/harfbuzz/src/hb-ot-layout-base-table.hh @@ -46,6 +46,12 @@ struct BaseCoordFormat1 return HB_DIRECTION_IS_HORIZONTAL (direction) ? font->em_scale_y (coordinate) : font->em_scale_x (coordinate); } + bool subset (hb_subset_context_t *c) const + { + TRACE_SUBSET (this); + return_trace ((bool) c->serializer->embed (*this)); + } + bool sanitize (hb_sanitize_context_t *c) const { TRACE_SANITIZE (this); @@ -67,6 +73,17 @@ struct BaseCoordFormat2 return HB_DIRECTION_IS_HORIZONTAL (direction) ? font->em_scale_y (coordinate) : font->em_scale_x (coordinate); } + bool subset (hb_subset_context_t *c) const + { + TRACE_SUBSET (this); + auto *out = c->serializer->embed (*this); + if (unlikely (!out)) return_trace (false); + + return_trace (c->serializer->check_assign (out->referenceGlyph, + c->plan->glyph_map->get (referenceGlyph), + HB_SERIALIZE_ERROR_INT_OVERFLOW)); + } + bool sanitize (hb_sanitize_context_t *c) const { TRACE_SANITIZE (this); @@ -86,7 +103,7 @@ struct BaseCoordFormat2 struct BaseCoordFormat3 { hb_position_t get_coord (hb_font_t *font, - const VariationStore &var_store, + const ItemVariationStore &var_store, hb_direction_t direction) const { const Device &device = this+deviceTable; @@ -96,6 +113,23 @@ struct BaseCoordFormat3 : font->em_scale_x (coordinate) + device.get_x_delta (font, var_store); } + void collect_variation_indices (hb_set_t& varidx_set /* OUT */) const + { + unsigned varidx = (this+deviceTable).get_variation_index (); + varidx_set.add (varidx); + } + + bool subset (hb_subset_context_t *c) const + { + TRACE_SUBSET (this); + auto *out = c->serializer->embed (*this); + if (unlikely (!out)) return_trace (false); + + return_trace (out->deviceTable.serialize_copy (c->serializer, deviceTable, + this, 0, + hb_serialize_context_t::Head, + &c->plan->base_variation_idx_map)); + } bool sanitize (hb_sanitize_context_t *c) const { @@ -120,7 +154,7 @@ struct BaseCoord bool has_data () const { return u.format; } hb_position_t get_coord (hb_font_t *font, - const VariationStore &var_store, + const ItemVariationStore &var_store, hb_direction_t direction) const { switch (u.format) { @@ -131,6 +165,27 @@ struct BaseCoord } } + void collect_variation_indices (hb_set_t& varidx_set /* OUT */) const + { + switch (u.format) { + case 3: u.format3.collect_variation_indices (varidx_set); + default:return; + } + } + + template <typename context_t, typename ...Ts> + typename context_t::return_t dispatch (context_t *c, Ts&&... ds) const + { + if (unlikely (!c->may_dispatch (this, &u.format))) return c->no_dispatch_return_value (); + TRACE_DISPATCH (this, u.format); + switch (u.format) { + case 1: return_trace (c->dispatch (u.format1, std::forward<Ts> (ds)...)); + case 2: return_trace (c->dispatch (u.format2, std::forward<Ts> (ds)...)); + case 3: return_trace (c->dispatch (u.format3, std::forward<Ts> (ds)...)); + default:return_trace (c->default_return_value ()); + } + } + bool sanitize (hb_sanitize_context_t *c) const { TRACE_SANITIZE (this); @@ -161,12 +216,37 @@ struct FeatMinMaxRecord bool has_data () const { return tag; } + hb_tag_t get_feature_tag () const { return tag; } + void get_min_max (const BaseCoord **min, const BaseCoord **max) const { if (likely (min)) *min = &(this+minCoord); if (likely (max)) *max = &(this+maxCoord); } + void collect_variation_indices (const hb_subset_plan_t* plan, + const void *base, + hb_set_t& varidx_set /* OUT */) const + { + if (!plan->layout_features.has (tag)) + return; + + (base+minCoord).collect_variation_indices (varidx_set); + (base+maxCoord).collect_variation_indices (varidx_set); + } + + bool subset (hb_subset_context_t *c, + const void *base) const + { + TRACE_SUBSET (this); + auto *out = c->serializer->embed (*this); + if (unlikely (!out)) return_trace (false); + if (!(out->minCoord.serialize_subset (c, minCoord, base))) + return_trace (false); + + return_trace (out->maxCoord.serialize_subset (c, maxCoord, base)); + } + bool sanitize (hb_sanitize_context_t *c, const void *base) const { TRACE_SANITIZE (this); @@ -206,6 +286,39 @@ struct MinMax } } + void collect_variation_indices (const hb_subset_plan_t* plan, + hb_set_t& varidx_set /* OUT */) const + { + (this+minCoord).collect_variation_indices (varidx_set); + (this+maxCoord).collect_variation_indices (varidx_set); + for (const FeatMinMaxRecord& record : featMinMaxRecords) + record.collect_variation_indices (plan, this, varidx_set); + } + + bool subset (hb_subset_context_t *c) const + { + TRACE_SUBSET (this); + auto *out = c->serializer->start_embed (*this); + if (unlikely (!out || !c->serializer->extend_min (out))) return_trace (false); + + if (!(out->minCoord.serialize_subset (c, minCoord, this)) || + !(out->maxCoord.serialize_subset (c, maxCoord, this))) + return_trace (false); + + unsigned len = 0; + for (const FeatMinMaxRecord& _ : featMinMaxRecords) + { + hb_tag_t feature_tag = _.get_feature_tag (); + if (!c->plan->layout_features.has (feature_tag)) + continue; + + if (!_.subset (c, this)) return false; + len++; + } + return_trace (c->serializer->check_assign (out->featMinMaxRecords.len, len, + HB_SERIALIZE_ERROR_INT_OVERFLOW)); + } + bool sanitize (hb_sanitize_context_t *c) const { TRACE_SANITIZE (this); @@ -240,6 +353,26 @@ struct BaseValues return this+baseCoords[baseline_tag_index]; } + void collect_variation_indices (hb_set_t& varidx_set /* OUT */) const + { + for (const auto& _ : baseCoords) + (this+_).collect_variation_indices (varidx_set); + } + + bool subset (hb_subset_context_t *c) const + { + TRACE_SUBSET (this); + auto *out = c->serializer->start_embed (*this); + if (unlikely (!out || !c->serializer->extend_min (out))) return_trace (false); + out->defaultIndex = defaultIndex; + + for (const auto& _ : baseCoords) + if (!subset_offset_array (c, out->baseCoords, this) (_)) + return_trace (false); + + return_trace (bool (out->baseCoords)); + } + bool sanitize (hb_sanitize_context_t *c) const { TRACE_SANITIZE (this); @@ -270,6 +403,20 @@ struct BaseLangSysRecord const MinMax &get_min_max () const { return this+minMax; } + void collect_variation_indices (const hb_subset_plan_t* plan, + hb_set_t& varidx_set /* OUT */) const + { (this+minMax).collect_variation_indices (plan, varidx_set); } + + bool subset (hb_subset_context_t *c, + const void *base) const + { + TRACE_SUBSET (this); + auto *out = c->serializer->embed (*this); + if (unlikely (!out)) return_trace (false); + + return_trace (out->minMax.serialize_subset (c, minMax, base)); + } + bool sanitize (hb_sanitize_context_t *c, const void *base) const { TRACE_SANITIZE (this); @@ -300,6 +447,35 @@ struct BaseScript bool has_values () const { return baseValues; } bool has_min_max () const { return defaultMinMax; /* TODO What if only per-language is present? */ } + void collect_variation_indices (const hb_subset_plan_t* plan, + hb_set_t& varidx_set /* OUT */) const + { + (this+baseValues).collect_variation_indices (varidx_set); + (this+defaultMinMax).collect_variation_indices (plan, varidx_set); + + for (const BaseLangSysRecord& _ : baseLangSysRecords) + _.collect_variation_indices (plan, varidx_set); + } + + bool subset (hb_subset_context_t *c) const + { + TRACE_SUBSET (this); + auto *out = c->serializer->start_embed (*this); + if (unlikely (!out || !c->serializer->extend_min (out))) return_trace (false); + + if (baseValues && !out->baseValues.serialize_subset (c, baseValues, this)) + return_trace (false); + + if (defaultMinMax && !out->defaultMinMax.serialize_subset (c, defaultMinMax, this)) + return_trace (false); + + for (const auto& _ : baseLangSysRecords) + if (!_.subset (c, this)) return_trace (false); + + return_trace (c->serializer->check_assign (out->baseLangSysRecords.len, baseLangSysRecords.len, + HB_SERIALIZE_ERROR_INT_OVERFLOW)); + } + bool sanitize (hb_sanitize_context_t *c) const { TRACE_SANITIZE (this); @@ -332,9 +508,31 @@ struct BaseScriptRecord bool has_data () const { return baseScriptTag; } + hb_tag_t get_script_tag () const { return baseScriptTag; } + const BaseScript &get_base_script (const BaseScriptList *list) const { return list+baseScript; } + void collect_variation_indices (const hb_subset_plan_t* plan, + const void* list, + hb_set_t& varidx_set /* OUT */) const + { + if (!plan->layout_scripts.has (baseScriptTag)) + return; + + (list+baseScript).collect_variation_indices (plan, varidx_set); + } + + bool subset (hb_subset_context_t *c, + const void *base) const + { + TRACE_SUBSET (this); + auto *out = c->serializer->embed (*this); + if (unlikely (!out)) return_trace (false); + + return_trace (out->baseScript.serialize_subset (c, baseScript, base)); + } + bool sanitize (hb_sanitize_context_t *c, const void *base) const { TRACE_SANITIZE (this); @@ -361,6 +559,33 @@ struct BaseScriptList return record->has_data () ? record->get_base_script (this) : Null (BaseScript); } + void collect_variation_indices (const hb_subset_plan_t* plan, + hb_set_t& varidx_set /* OUT */) const + { + for (const BaseScriptRecord& _ : baseScriptRecords) + _.collect_variation_indices (plan, this, varidx_set); + } + + bool subset (hb_subset_context_t *c) const + { + TRACE_SUBSET (this); + auto *out = c->serializer->start_embed (*this); + if (unlikely (!out || !c->serializer->extend_min (out))) return_trace (false); + + unsigned len = 0; + for (const BaseScriptRecord& _ : baseScriptRecords) + { + hb_tag_t script_tag = _.get_script_tag (); + if (!c->plan->layout_scripts.has (script_tag)) + continue; + + if (!_.subset (c, this)) return false; + len++; + } + return_trace (c->serializer->check_assign (out->baseScriptRecords.len, len, + HB_SERIALIZE_ERROR_INT_OVERFLOW)); + } + bool sanitize (hb_sanitize_context_t *c) const { TRACE_SANITIZE (this); @@ -422,6 +647,20 @@ struct Axis return true; } + void collect_variation_indices (const hb_subset_plan_t* plan, + hb_set_t& varidx_set /* OUT */) const + { (this+baseScriptList).collect_variation_indices (plan, varidx_set); } + + bool subset (hb_subset_context_t *c) const + { + TRACE_SUBSET (this); + auto *out = c->serializer->embed (*this); + if (unlikely (!out)) return_trace (false); + + out->baseTagList.serialize_copy (c->serializer, baseTagList, this); + return_trace (out->baseScriptList.serialize_subset (c, baseScriptList, this)); + } + bool sanitize (hb_sanitize_context_t *c) const { TRACE_SANITIZE (this); @@ -453,8 +692,41 @@ struct BASE const Axis &get_axis (hb_direction_t direction) const { return HB_DIRECTION_IS_VERTICAL (direction) ? this+vAxis : this+hAxis; } - const VariationStore &get_var_store () const - { return version.to_int () < 0x00010001u ? Null (VariationStore) : this+varStore; } + bool has_var_store () const + { return version.to_int () >= 0x00010001u && varStore != 0; } + + const ItemVariationStore &get_var_store () const + { return version.to_int () < 0x00010001u ? Null (ItemVariationStore) : this+varStore; } + + void collect_variation_indices (const hb_subset_plan_t* plan, + hb_set_t& varidx_set /* OUT */) const + { + (this+hAxis).collect_variation_indices (plan, varidx_set); + (this+vAxis).collect_variation_indices (plan, varidx_set); + } + + bool subset (hb_subset_context_t *c) const + { + TRACE_SUBSET (this); + auto *out = c->serializer->start_embed (*this); + if (unlikely (!out || !c->serializer->extend_min (out))) return_trace (false); + + out->version = version; + if (hAxis && !out->hAxis.serialize_subset (c, hAxis, this)) + return_trace (false); + + if (vAxis && !out->vAxis.serialize_subset (c, vAxis, this)) + return_trace (false); + + if (has_var_store ()) + { + if (!c->serializer->allocate_size<Offset32To<ItemVariationStore>> (Offset32To<ItemVariationStore>::static_size)) + return_trace (false); + return_trace (out->varStore.serialize_subset (c, varStore, this, c->plan->base_varstore_inner_maps.as_array ())); + } + + return_trace (true); + } bool get_baseline (hb_font_t *font, hb_tag_t baseline_tag, @@ -487,7 +759,7 @@ struct BASE &min_coord, &max_coord)) return false; - const VariationStore &var_store = get_var_store (); + const ItemVariationStore &var_store = get_var_store (); if (likely (min && min_coord)) *min = min_coord->get_coord (font, var_store, direction); if (likely (max && max_coord)) *max = max_coord->get_coord (font, var_store, direction); return true; @@ -510,7 +782,7 @@ struct BASE * of BASE table (may be NULL) */ Offset16To<Axis>vAxis; /* Offset to vertical Axis table, from beginning * of BASE table (may be NULL) */ - Offset32To<VariationStore> + Offset32To<ItemVariationStore> varStore; /* Offset to the table of Item Variation * Store--from beginning of BASE * header (may be NULL). Introduced |