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[subset-plan] Simplify gsub_lookups and gpos_lookups allocation

This commit is contained in:
Behdad Esfahbod 2023-01-11 10:56:16 -07:00
parent 1a716bad03
commit 1a00ab69ec
4 changed files with 13 additions and 17 deletions
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4
src/hb-ot-layout-common.hh
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@ -156,7 +156,7 @@ struct hb_subset_layout_context_t :
{
if (tag_ == HB_OT_TAG_GSUB)
{
lookup_index_map = c_->plan->gsub_lookups;
lookup_index_map = &c_->plan->gsub_lookups;
script_langsys_map = c_->plan->gsub_langsys;
feature_index_map = &c_->plan->gsub_features;
feature_substitutes_map = c_->plan->gsub_feature_substitutes_map;
@ -164,7 +164,7 @@ struct hb_subset_layout_context_t :
}
else
{
lookup_index_map = c_->plan->gpos_lookups;
lookup_index_map = &c_->plan->gpos_lookups;
script_langsys_map = c_->plan->gpos_langsys;
feature_index_map = &c_->plan->gpos_features;
feature_substitutes_map = c_->plan->gpos_feature_substitutes_map;

12
src/hb-ot-layout-gsubgpos.hh
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@ -2223,7 +2223,7 @@ struct ContextFormat1_4
if (unlikely (!c->serializer->extend_min (out))) return_trace (false);
out->format = format;
const hb_map_t *lookup_map = c->table_tag == HB_OT_TAG_GSUB ? c->plan->gsub_lookups : c->plan->gpos_lookups;
const hb_map_t *lookup_map = c->table_tag == HB_OT_TAG_GSUB ? &c->plan->gsub_lookups : &c->plan->gpos_lookups;
hb_sorted_vector_t<hb_codepoint_t> new_coverage;
+ hb_zip (this+coverage, ruleSet)
| hb_filter (glyphset, hb_first)
@ -2460,7 +2460,7 @@ struct ContextFormat2_5
hb_set_t coverage_glyph_classes;
(this+classDef).intersected_classes (&retained_coverage_glyphs, &coverage_glyph_classes);
const hb_map_t *lookup_map = c->table_tag == HB_OT_TAG_GSUB ? c->plan->gsub_lookups : c->plan->gpos_lookups;
const hb_map_t *lookup_map = c->table_tag == HB_OT_TAG_GSUB ? &c->plan->gsub_lookups : &c->plan->gpos_lookups;
bool ret = true;
int non_zero_index = -1, index = 0;
auto snapshot = c->serializer->snapshot();
@ -2640,7 +2640,7 @@ struct ContextFormat3
}
const auto& lookupRecord = StructAfter<UnsizedArrayOf<LookupRecord>> (coverageZ.as_array (glyphCount));
const hb_map_t *lookup_map = c->table_tag == HB_OT_TAG_GSUB ? c->plan->gsub_lookups : c->plan->gpos_lookups;
const hb_map_t *lookup_map = c->table_tag == HB_OT_TAG_GSUB ? &c->plan->gsub_lookups : &c->plan->gpos_lookups;
unsigned count = serialize_lookuprecord_array (c->serializer, lookupRecord.as_array (lookupCount), lookup_map);
@ -3304,7 +3304,7 @@ struct ChainContextFormat1_4
if (unlikely (!c->serializer->extend_min (out))) return_trace (false);
out->format = format;
const hb_map_t *lookup_map = c->table_tag == HB_OT_TAG_GSUB ? c->plan->gsub_lookups : c->plan->gpos_lookups;
const hb_map_t *lookup_map = c->table_tag == HB_OT_TAG_GSUB ? &c->plan->gsub_lookups : &c->plan->gpos_lookups;
hb_sorted_vector_t<hb_codepoint_t> new_coverage;
+ hb_zip (this+coverage, ruleSet)
| hb_filter (glyphset, hb_first)
@ -3584,7 +3584,7 @@ struct ChainContextFormat2_5
int non_zero_index = -1, index = 0;
bool ret = true;
const hb_map_t *lookup_map = c->table_tag == HB_OT_TAG_GSUB ? c->plan->gsub_lookups : c->plan->gpos_lookups;
const hb_map_t *lookup_map = c->table_tag == HB_OT_TAG_GSUB ? &c->plan->gsub_lookups : &c->plan->gpos_lookups;
auto last_non_zero = c->serializer->snapshot ();
for (const auto& _ : + hb_enumerate (ruleSet)
| hb_filter (input_klass_map, hb_first))
@ -3826,7 +3826,7 @@ struct ChainContextFormat3
return_trace (false);
const auto &lookup = StructAfter<decltype (lookupX)> (lookahead);
const hb_map_t *lookup_map = c->table_tag == HB_OT_TAG_GSUB ? c->plan->gsub_lookups : c->plan->gpos_lookups;
const hb_map_t *lookup_map = c->table_tag == HB_OT_TAG_GSUB ? &c->plan->gsub_lookups : &c->plan->gpos_lookups;
HBUINT16 *lookupCount = c->serializer->copy<HBUINT16> (lookup.len);
if (!lookupCount) return_trace (false);

8
src/hb-subset-plan.cc
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@ -383,7 +383,7 @@ _collect_layout_variation_indices (hb_subset_plan_t* plan)
plan->layout_variation_idx_delta_map,
font, var_store,
plan->_glyphset_gsub,
plan->gpos_lookups,
&plan->gpos_lookups,
store_cache);
gdef->collect_variation_indices (&c);
@ -629,7 +629,7 @@ _populate_gids_to_retain (hb_subset_plan_t* plan,
_closure_glyphs_lookups_features<GSUB> (
plan,
plan->_glyphset_gsub,
plan->gsub_lookups,
&plan->gsub_lookups,
&plan->gsub_features,
plan->gsub_langsys,
plan->gsub_feature_record_cond_idx_map,
@ -639,7 +639,7 @@ _populate_gids_to_retain (hb_subset_plan_t* plan,
_closure_glyphs_lookups_features<GPOS> (
plan,
plan->_glyphset_gsub,
plan->gpos_lookups,
&plan->gpos_lookups,
&plan->gpos_features,
plan->gpos_langsys,
plan->gpos_feature_record_cond_idx_map,
@ -860,8 +860,6 @@ hb_subset_plan_create_or_fail (hb_face_t *face,
plan->glyph_map = hb_map_create ();
plan->reverse_glyph_map = hb_map_create ();
plan->glyph_map_gsub = hb_map_create ();
plan->gsub_lookups = hb_map_create ();
plan->gpos_lookups = hb_map_create ();
plan->check_success (plan->gsub_langsys = hb_hashmap_create<unsigned, hb::unique_ptr<hb_set_t>> ());
plan->check_success (plan->gpos_langsys = hb_hashmap_create<unsigned, hb::unique_ptr<hb_set_t>> ());

6
src/hb-subset-plan.hh
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@ -62,8 +62,6 @@ struct hb_subset_plan_t
hb_set_destroy (_glyphset_gsub);
hb_set_destroy (_glyphset_mathed);
hb_set_destroy (_glyphset_colred);
hb_map_destroy (gsub_lookups);
hb_map_destroy (gpos_lookups);
hb_map_destroy (colrv1_layers);
hb_map_destroy (colr_palettes);
hb_map_destroy (axes_index_map);
@ -151,8 +149,8 @@ struct hb_subset_plan_t
hb_set_t *_glyphset_colred;
//active lookups we'd like to retain
hb_map_t *gsub_lookups;
hb_map_t *gpos_lookups;
hb_map_t gsub_lookups;
hb_map_t gpos_lookups;
//active langsys we'd like to retain
hb_hashmap_t<unsigned, hb::unique_ptr<hb_set_t>> *gsub_langsys;