diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-subset-plan.cc')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-subset-plan.cc | 192 |
1 files changed, 163 insertions, 29 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-subset-plan.cc b/src/3rdparty/harfbuzz-ng/src/hb-subset-plan.cc index 088fdca07b..aea886864d 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-subset-plan.cc +++ b/src/3rdparty/harfbuzz-ng/src/hb-subset-plan.cc @@ -36,8 +36,10 @@ #include "hb-ot-layout-gpos-table.hh" #include "hb-ot-layout-gsub-table.hh" #include "hb-ot-cff1-table.hh" +#include "hb-ot-cff2-table.hh" #include "OT/Color/COLR/COLR.hh" #include "OT/Color/COLR/colrv1-closure.hh" +#include "OT/Color/CPAL/CPAL.hh" #include "hb-ot-var-fvar-table.hh" #include "hb-ot-var-avar-table.hh" #include "hb-ot-stat-table.hh" @@ -293,7 +295,7 @@ _closure_glyphs_lookups_features (hb_subset_plan_t *plan, feature_record_cond_idx_map, feature_substitutes_map); - if (table_tag == HB_OT_TAG_GSUB) + if (table_tag == HB_OT_TAG_GSUB && !(plan->flags & HB_SUBSET_FLAGS_NO_LAYOUT_CLOSURE)) hb_ot_layout_lookups_substitute_closure (plan->source, &lookup_indices, gids_to_retain); @@ -345,7 +347,10 @@ _get_hb_font_with_variations (const hb_subset_plan_t *plan) hb_font_t *font = hb_font_create (plan->source); hb_vector_t<hb_variation_t> vars; - vars.alloc (plan->user_axes_location.get_population ()); + if (!vars.alloc (plan->user_axes_location.get_population ())) { + hb_font_destroy (font); + return nullptr; + } for (auto _ : plan->user_axes_location) { @@ -381,7 +386,13 @@ _collect_layout_variation_indices (hb_subset_plan_t* plan) bool collect_delta = plan->pinned_at_default ? false : true; if (collect_delta) { - font = _get_hb_font_with_variations (plan); + if (unlikely (!plan->check_success (font = _get_hb_font_with_variations (plan)))) { + hb_font_destroy (font); + gdef.destroy (); + gpos.destroy (); + return; + } + if (gdef->has_var_store ()) { var_store = &(gdef->get_var_store ()); @@ -555,9 +566,12 @@ _populate_unicodes_to_retain (const hb_set_t *unicodes, if (plan->codepoint_to_glyph->has (cp)) continue; - hb_codepoint_t gid = (*unicode_glyphid_map)[cp]; - plan->codepoint_to_glyph->set (cp, gid); - plan->unicode_to_new_gid_list.push (hb_pair (cp, gid)); + hb_codepoint_t *gid; + if (!unicode_glyphid_map->has(cp, &gid)) + continue; + + plan->codepoint_to_glyph->set (cp, *gid); + plan->unicode_to_new_gid_list.push (hb_pair (cp, *gid)); } plan->unicode_to_new_gid_list.qsort (); } @@ -609,7 +623,7 @@ _glyf_add_gid_and_children (const OT::glyf_accelerator_t &glyf, gids_to_retain->add (gid); - for (auto item : glyf.glyph_for_gid (gid).get_composite_iterator ()) + for (auto &item : glyf.glyph_for_gid (gid).get_composite_iterator ()) operation_count = _glyf_add_gid_and_children (glyf, item.get_gid (), @@ -617,10 +631,54 @@ _glyf_add_gid_and_children (const OT::glyf_accelerator_t &glyf, operation_count, depth); +#ifndef HB_NO_VAR_COMPOSITES + for (auto &item : glyf.glyph_for_gid (gid).get_var_composite_iterator ()) + { + operation_count = + _glyf_add_gid_and_children (glyf, + item.get_gid (), + gids_to_retain, + operation_count, + depth); + } +#endif + return operation_count; } static void +_nameid_closure (hb_subset_plan_t* plan, + hb_set_t* drop_tables) +{ +#ifndef HB_NO_STYLE + plan->source->table.STAT->collect_name_ids (&plan->user_axes_location, &plan->name_ids); +#endif +#ifndef HB_NO_VAR + if (!plan->all_axes_pinned) + plan->source->table.fvar->collect_name_ids (&plan->user_axes_location, &plan->name_ids); +#endif +#ifndef HB_NO_COLOR + if (!drop_tables->has (HB_OT_TAG_CPAL)) + plan->source->table.CPAL->collect_name_ids (&plan->colr_palettes, &plan->name_ids); +#endif + +#ifndef HB_NO_SUBSET_LAYOUT + if (!drop_tables->has (HB_OT_TAG_GPOS)) + { + hb_blob_ptr_t<GPOS> gpos = plan->source_table<GPOS> (); + gpos->collect_name_ids (&plan->gpos_features, &plan->name_ids); + gpos.destroy (); + } + if (!drop_tables->has (HB_OT_TAG_GSUB)) + { + hb_blob_ptr_t<GSUB> gsub = plan->source_table<GSUB> (); + gsub->collect_name_ids (&plan->gsub_features, &plan->name_ids); + gsub.destroy (); + } +#endif +} + +static void _populate_gids_to_retain (hb_subset_plan_t* plan, hb_set_t* drop_tables) { @@ -673,6 +731,7 @@ _populate_gids_to_retain (hb_subset_plan_t* plan, plan->_glyphset_colred = cur_glyphset; + _nameid_closure (plan, drop_tables); /* Populate a full set of glyphs to retain by adding all referenced * composite glyphs. */ if (glyf.has_data ()) @@ -756,21 +815,6 @@ _create_old_gid_to_new_gid_map (const hb_face_t *face, ; } -static void -_nameid_closure (hb_face_t *face, - hb_set_t *nameids, - bool all_axes_pinned, - hb_hashmap_t<hb_tag_t, float> *user_axes_location) -{ -#ifndef HB_NO_STYLE - face->table.STAT->collect_name_ids (user_axes_location, nameids); -#endif -#ifndef HB_NO_VAR - if (!all_axes_pinned) - face->table.fvar->collect_name_ids (user_axes_location, nameids); -#endif -} - #ifndef HB_NO_VAR static void _normalize_axes_location (hb_face_t *face, hb_subset_plan_t *plan) @@ -783,12 +827,15 @@ _normalize_axes_location (hb_face_t *face, hb_subset_plan_t *plan) bool has_avar = face->table.avar->has_data (); const OT::SegmentMaps *seg_maps = nullptr; + unsigned avar_axis_count = 0; if (has_avar) + { seg_maps = face->table.avar->get_segment_maps (); + avar_axis_count = face->table.avar->get_axis_count(); + } bool axis_not_pinned = false; unsigned old_axis_idx = 0, new_axis_idx = 0; - unsigned int i = 0; for (const auto& axis : axes) { hb_tag_t axis_tag = axis.get_axis_tag (); @@ -803,7 +850,7 @@ _normalize_axes_location (hb_face_t *face, hb_subset_plan_t *plan) else { int normalized_v = axis.normalize_axis_value (plan->user_axes_location.get (axis_tag)); - if (has_avar && old_axis_idx < face->table.avar->get_axis_count ()) + if (has_avar && old_axis_idx < avar_axis_count) { normalized_v = seg_maps->map (normalized_v); } @@ -811,17 +858,99 @@ _normalize_axes_location (hb_face_t *face, hb_subset_plan_t *plan) if (normalized_v != 0) plan->pinned_at_default = false; - plan->normalized_coords[i] = normalized_v; + plan->normalized_coords[old_axis_idx] = normalized_v; } - if (has_avar) - seg_maps = &StructAfter<OT::SegmentMaps> (*seg_maps); old_axis_idx++; - i++; + if (has_avar && old_axis_idx < avar_axis_count) + seg_maps = &StructAfter<OT::SegmentMaps> (*seg_maps); } plan->all_axes_pinned = !axis_not_pinned; } + +static void +_update_instance_metrics_map_from_cff2 (hb_subset_plan_t *plan) +{ + if (!plan->normalized_coords) return; + OT::cff2::accelerator_t cff2 (plan->source); + if (!cff2.is_valid ()) return; + + hb_font_t *font = nullptr; + if (unlikely (!plan->check_success (font = _get_hb_font_with_variations (plan)))) + { + hb_font_destroy (font); + return; + } + + hb_glyph_extents_t extents = {0x7FFF, -0x7FFF}; + OT::hmtx_accelerator_t _hmtx (plan->source); + float *hvar_store_cache = nullptr; + if (_hmtx.has_data () && _hmtx.var_table.get_length ()) + hvar_store_cache = _hmtx.var_table->get_var_store ().create_cache (); + + OT::vmtx_accelerator_t _vmtx (plan->source); + float *vvar_store_cache = nullptr; + if (_vmtx.has_data () && _vmtx.var_table.get_length ()) + vvar_store_cache = _vmtx.var_table->get_var_store ().create_cache (); + + for (auto p : *plan->glyph_map) + { + hb_codepoint_t old_gid = p.first; + hb_codepoint_t new_gid = p.second; + if (!cff2.get_extents (font, old_gid, &extents)) continue; + bool has_bounds_info = true; + if (extents.x_bearing == 0 && extents.width == 0 && + extents.height == 0 && extents.y_bearing == 0) + has_bounds_info = false; + + if (has_bounds_info) + { + plan->head_maxp_info.xMin = hb_min (plan->head_maxp_info.xMin, extents.x_bearing); + plan->head_maxp_info.xMax = hb_max (plan->head_maxp_info.xMax, extents.x_bearing + extents.width); + plan->head_maxp_info.yMax = hb_max (plan->head_maxp_info.yMax, extents.y_bearing); + plan->head_maxp_info.yMin = hb_min (plan->head_maxp_info.yMin, extents.y_bearing + extents.height); + } + + if (_hmtx.has_data ()) + { + int hori_aw = _hmtx.get_advance_without_var_unscaled (old_gid); + if (_hmtx.var_table.get_length ()) + hori_aw += (int) roundf (_hmtx.var_table->get_advance_delta_unscaled (old_gid, font->coords, font->num_coords, + hvar_store_cache)); + int lsb = extents.x_bearing; + if (!has_bounds_info) + { + if (!_hmtx.get_leading_bearing_without_var_unscaled (old_gid, &lsb)) + continue; + } + plan->hmtx_map.set (new_gid, hb_pair ((unsigned) hori_aw, lsb)); + plan->bounds_width_map.set (new_gid, extents.width); + } + + if (_vmtx.has_data ()) + { + int vert_aw = _vmtx.get_advance_without_var_unscaled (old_gid); + if (_vmtx.var_table.get_length ()) + vert_aw += (int) roundf (_vmtx.var_table->get_advance_delta_unscaled (old_gid, font->coords, font->num_coords, + vvar_store_cache)); + + int tsb = extents.y_bearing; + if (!has_bounds_info) + { + if (!_vmtx.get_leading_bearing_without_var_unscaled (old_gid, &tsb)) + continue; + } + plan->vmtx_map.set (new_gid, hb_pair ((unsigned) vert_aw, tsb)); + plan->bounds_height_map.set (new_gid, extents.height); + } + } + hb_font_destroy (font); + if (hvar_store_cache) + _hmtx.var_table->get_var_store ().destroy_cache (hvar_store_cache); + if (vvar_store_cache) + _vmtx.var_table->get_var_store ().destroy_cache (vvar_store_cache); +} #endif hb_subset_plan_t::hb_subset_plan_t (hb_face_t *face, @@ -884,6 +1013,8 @@ hb_subset_plan_t::hb_subset_plan_t (hb_face_t *face, _populate_unicodes_to_retain (input->sets.unicodes, input->sets.glyphs, this); _populate_gids_to_retain (this, input->sets.drop_tables); + if (unlikely (in_error ())) + return; _create_old_gid_to_new_gid_map (face, input->flags & HB_SUBSET_FLAGS_RETAIN_GIDS, @@ -905,10 +1036,13 @@ hb_subset_plan_t::hb_subset_plan_t (hb_face_t *face, glyph_map->get(unicode_to_new_gid_list.arrayZ[i].second); } - _nameid_closure (face, &name_ids, all_axes_pinned, &user_axes_location); if (unlikely (in_error ())) return; +#ifndef HB_NO_VAR + _update_instance_metrics_map_from_cff2 (this); +#endif + if (attach_accelerator_data) { hb_multimap_t gid_to_unicodes; |