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Cache some hotpath inverses regarding context handling

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This commit is contained in:
Thomas Krijnen
2026-04-07 16:13:01 +02:00
parent a19d398c78
commit a425bb6da0
2 changed files with 52 additions and 11 deletions
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src/ifcgeom/mapping/mapping.cpp
+43 -10
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@@ -1283,26 +1283,59 @@ void mapping::addRepresentationsFromDefaultContexts(std::vector<IfcSchema::IfcRe
}
}
express::Base mapping::representation_of(const express::Base& product) {
// @todo correct, but very inefficient
std::vector<IfcSchema::IfcRepresentation> representations;
std::vector<IfcSchema::IfcRepresentation> of_product;
std::vector<IfcSchema::IfcRepresentation> intersection;
std::vector<IfcSchema::IfcRepresentation> intersection_no_box;
void mapping::ensureRepresentationContextCache_() {
const auto has_context_ids = settings_.get<settings::ContextIds>().has();
const auto dimensionality = settings_.get<settings::OutputDimensionality>().get();
const auto context_ids = has_context_ids ? settings_.get<settings::ContextIds>().get() : std::set<int>{};
if (!settings_.get<settings::ContextIds>().has()) {
std::lock_guard<std::mutex> guard(representation_context_cache_guard_);
if (representation_context_cache_valid_ &&
representation_context_cache_has_context_ids_ == has_context_ids &&
representation_context_cache_dimensionality_ == dimensionality &&
representation_context_cache_ids_ == context_ids) {
return;
}
std::vector<IfcSchema::IfcRepresentation> representations;
if (!has_context_ids) {
addRepresentationsFromDefaultContexts(representations);
} else {
addRepresentationsFromContextIds(representations);
}
std::unordered_set<uint32_t> representation_ids;
representation_ids.reserve(representations.size());
for (auto& representation : representations) {
if (representation) {
representation_ids.insert((uint32_t)representation.id());
}
}
representation_context_cache_ = std::move(representation_ids);
representation_context_cache_ids_ = std::move(context_ids);
representation_context_cache_dimensionality_ = dimensionality;
representation_context_cache_has_context_ids_ = has_context_ids;
representation_context_cache_valid_ = true;
}
express::Base mapping::representation_of(const express::Base& product) {
std::vector<IfcSchema::IfcRepresentation> of_product;
std::vector<IfcSchema::IfcRepresentation> intersection;
std::vector<IfcSchema::IfcRepresentation> intersection_no_box;
ensureRepresentationContextCache_();
if (product.as<IfcSchema::IfcProduct>().Representation()) {
of_product = product.as<IfcSchema::IfcProduct>().Representation().Representations();
}
for (auto& r : of_product) {
if (std::find(representations.begin(), representations.end(), r) != representations.end()) {
intersection.push_back(r);
{
std::lock_guard<std::mutex> guard(representation_context_cache_guard_);
for (auto& r : of_product) {
if (representation_context_cache_.find((uint32_t)r.id()) != representation_context_cache_.end()) {
intersection.push_back(r);
}
}
}