diff options
Diffstat (limited to 'thirdparty/harfbuzz/src/OT/glyf/glyf.hh')
| -rw-r--r-- | thirdparty/harfbuzz/src/OT/glyf/glyf.hh | 103 |
1 files changed, 75 insertions, 28 deletions
diff --git a/thirdparty/harfbuzz/src/OT/glyf/glyf.hh b/thirdparty/harfbuzz/src/OT/glyf/glyf.hh index bcaf44fc1e..5fb32f67f3 100644 --- a/thirdparty/harfbuzz/src/OT/glyf/glyf.hh +++ b/thirdparty/harfbuzz/src/OT/glyf/glyf.hh @@ -24,7 +24,6 @@ namespace OT { */ #define HB_OT_TAG_glyf HB_TAG('g','l','y','f') - struct glyf { friend struct glyf_accelerator_t; @@ -73,7 +72,13 @@ struct glyf if (unlikely (!c->serializer->check_success (glyf_prime))) return_trace (false); hb_vector_t<glyf_impl::SubsetGlyph> glyphs; - _populate_subset_glyphs (c->plan, &glyphs); + _populate_subset_glyphs (c->plan, glyphs); + + if (!c->plan->pinned_at_default) + { + if (!_compile_subset_glyphs_with_deltas (c->plan, &glyphs)) + return_trace (false); + } auto padded_offsets = + hb_iter (glyphs) @@ -93,6 +98,8 @@ struct glyf } + if (!c->plan->pinned_at_default) + _free_compiled_subset_glyphs (&glyphs); if (unlikely (c->serializer->in_error ())) return_trace (false); return_trace (c->serializer->check_success (glyf_impl::_add_loca_and_head (c->plan, padded_offsets, @@ -101,7 +108,17 @@ struct glyf void _populate_subset_glyphs (const hb_subset_plan_t *plan, - hb_vector_t<glyf_impl::SubsetGlyph> *glyphs /* OUT */) const; + hb_vector_t<glyf_impl::SubsetGlyph> &glyphs /* OUT */) const; + + bool + _compile_subset_glyphs_with_deltas (const hb_subset_plan_t *plan, + hb_vector_t<glyf_impl::SubsetGlyph> *glyphs /* OUT */) const; + + void _free_compiled_subset_glyphs (hb_vector_t<glyf_impl::SubsetGlyph> *glyphs) const + { + for (auto _ : *glyphs) + _.free_compiled_bytes (); + } protected: UnsizedArrayOf<HBUINT8> @@ -166,7 +183,7 @@ struct glyf_accelerator_t contour_point_vector_t all_points; bool phantom_only = !consumer.is_consuming_contour_points (); - if (unlikely (!glyph_for_gid (gid).get_points (font, *this, all_points, phantom_only))) + if (unlikely (!glyph_for_gid (gid).get_points (font, *this, all_points, nullptr, true, true, phantom_only))) return false; if (consumer.is_consuming_contour_points ()) @@ -360,35 +377,65 @@ struct glyf_accelerator_t inline void glyf::_populate_subset_glyphs (const hb_subset_plan_t *plan, - hb_vector_t<glyf_impl::SubsetGlyph> *glyphs /* OUT */) const + hb_vector_t<glyf_impl::SubsetGlyph>& glyphs /* OUT */) const { OT::glyf_accelerator_t glyf (plan->source); + unsigned num_glyphs = plan->num_output_glyphs (); + if (!glyphs.resize (num_glyphs)) return; - + hb_range (plan->num_output_glyphs ()) - | hb_map ([&] (hb_codepoint_t new_gid) - { - glyf_impl::SubsetGlyph subset_glyph = {0}; - subset_glyph.new_gid = new_gid; - - /* should never fail: all old gids should be mapped */ - if (!plan->old_gid_for_new_gid (new_gid, &subset_glyph.old_gid)) - return subset_glyph; - - if (new_gid == 0 && - !(plan->flags & HB_SUBSET_FLAGS_NOTDEF_OUTLINE)) - subset_glyph.source_glyph = glyf_impl::Glyph (); - else - subset_glyph.source_glyph = glyf.glyph_for_gid (subset_glyph.old_gid, true); - if (plan->flags & HB_SUBSET_FLAGS_NO_HINTING) - subset_glyph.drop_hints_bytes (); - else - subset_glyph.dest_start = subset_glyph.source_glyph.get_bytes (); - return subset_glyph; - }) - | hb_sink (glyphs) - ; + for (auto p : plan->glyph_map->iter ()) + { + unsigned new_gid = p.second; + glyf_impl::SubsetGlyph& subset_glyph = glyphs.arrayZ[new_gid]; + subset_glyph.old_gid = p.first; + + if (unlikely (new_gid == 0 && + !(plan->flags & HB_SUBSET_FLAGS_NOTDEF_OUTLINE)) && + plan->pinned_at_default) + subset_glyph.source_glyph = glyf_impl::Glyph (); + else + subset_glyph.source_glyph = glyf.glyph_for_gid (subset_glyph.old_gid, true); + + if (plan->flags & HB_SUBSET_FLAGS_NO_HINTING) + subset_glyph.drop_hints_bytes (); + else + subset_glyph.dest_start = subset_glyph.source_glyph.get_bytes (); + } } +inline bool +glyf::_compile_subset_glyphs_with_deltas (const hb_subset_plan_t *plan, + hb_vector_t<glyf_impl::SubsetGlyph> *glyphs /* OUT */) const +{ + OT::glyf_accelerator_t glyf (plan->source); + hb_font_t *font = hb_font_create (plan->source); + if (unlikely (!font)) return false; + + hb_vector_t<hb_variation_t> vars; + if (unlikely (!vars.alloc (plan->user_axes_location->get_population ()))) + return false; + + for (auto _ : *plan->user_axes_location) + { + hb_variation_t var; + var.tag = _.first; + var.value = _.second; + vars.push (var); + } + + hb_font_set_variations (font, vars.arrayZ, plan->user_axes_location->get_population ()); + for (auto& subset_glyph : *glyphs) + { + if (!const_cast<glyf_impl::SubsetGlyph &> (subset_glyph).compile_bytes_with_deltas (plan, font, glyf)) + { + hb_font_destroy (font); + return false; + } + } + + hb_font_destroy (font); + return true; +} } /* namespace OT */ |