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Diffstat (limited to 'source/blender/functions/FN_attributes_ref.hh')
| -rw-r--r-- | source/blender/functions/FN_attributes_ref.hh | 341 |
1 files changed, 0 insertions, 341 deletions
diff --git a/source/blender/functions/FN_attributes_ref.hh b/source/blender/functions/FN_attributes_ref.hh deleted file mode 100644 index a9236f73549..00000000000 --- a/source/blender/functions/FN_attributes_ref.hh +++ /dev/null @@ -1,341 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - */ - -#pragma once - -/** \file - * \ingroup fn - * - * An AttributesRef references multiple arrays of equal length. Each array has a corresponding name - * and index. - */ - -#include <optional> - -#include "FN_spans.hh" - -#include "BLI_linear_allocator.hh" -#include "BLI_map.hh" -#include "BLI_utility_mixins.hh" -#include "BLI_vector_set.hh" - -namespace blender::fn { - -class AttributesInfo; - -class AttributesInfoBuilder : NonCopyable, NonMovable { - private: - LinearAllocator<> allocator_; - VectorSet<std::string> names_; - Vector<const CPPType *> types_; - Vector<void *> defaults_; - - friend AttributesInfo; - - public: - AttributesInfoBuilder() = default; - ~AttributesInfoBuilder(); - - template<typename T> bool add(StringRef name, const T &default_value) - { - return this->add(name, CPPType::get<T>(), static_cast<const void *>(&default_value)); - } - - bool add(StringRef name, const CPPType &type, const void *default_value = nullptr); -}; - -/** - * Stores which attributes are in an AttributesRef. Every attribute has a unique index, a unique - * name, a type and a default value. - */ -class AttributesInfo : NonCopyable, NonMovable { - private: - LinearAllocator<> allocator_; - Map<StringRefNull, int> index_by_name_; - Vector<StringRefNull> name_by_index_; - Vector<const CPPType *> type_by_index_; - Vector<void *> defaults_; - - public: - AttributesInfo() = default; - AttributesInfo(const AttributesInfoBuilder &builder); - ~AttributesInfo(); - - int size() const - { - return name_by_index_.size(); - } - - IndexRange index_range() const - { - return name_by_index_.index_range(); - } - - StringRefNull name_of(int index) const - { - return name_by_index_[index]; - } - - int index_of(StringRef name) const - { - return index_by_name_.lookup_as(name); - } - - const void *default_of(int index) const - { - return defaults_[index]; - } - - const void *default_of(StringRef name) const - { - return this->default_of(this->index_of(name)); - } - - template<typename T> const T &default_of(int index) const - { - BLI_assert(type_by_index_[index]->is<T>()); - return *static_cast<T *>(defaults_[index]); - } - - template<typename T> const T &default_of(StringRef name) const - { - return this->default_of<T>(this->index_of(name)); - } - - const CPPType &type_of(int index) const - { - return *type_by_index_[index]; - } - - const CPPType &type_of(StringRef name) const - { - return this->type_of(this->index_of(name)); - } - - bool has_attribute(StringRef name, const CPPType &type) const - { - return this->try_index_of(name, type) >= 0; - } - - int try_index_of(StringRef name) const - { - return index_by_name_.lookup_default_as(name, -1); - } - - int try_index_of(StringRef name, const CPPType &type) const - { - int index = this->try_index_of(name); - if (index == -1) { - return -1; - } - else if (this->type_of(index) == type) { - return index; - } - else { - return -1; - } - } -}; - -/** - * References multiple arrays that match the description of an AttributesInfo instance. This class - * is supposed to be relatively cheap to copy. It does not own any of the arrays itself. - */ -class MutableAttributesRef { - private: - const AttributesInfo *info_; - Span<void *> buffers_; - IndexRange range_; - - friend class AttributesRef; - - public: - MutableAttributesRef(const AttributesInfo &info, Span<void *> buffers, int64_t size) - : MutableAttributesRef(info, buffers, IndexRange(size)) - { - } - - MutableAttributesRef(const AttributesInfo &info, Span<void *> buffers, IndexRange range) - : info_(&info), buffers_(buffers), range_(range) - { - } - - int64_t size() const - { - return range_.size(); - } - - IndexRange index_range() const - { - return IndexRange(this->size()); - } - - const AttributesInfo &info() const - { - return *info_; - } - - GMutableSpan get(int index) const - { - const CPPType &type = info_->type_of(index); - void *ptr = POINTER_OFFSET(buffers_[index], type.size() * range_.start()); - return GMutableSpan(type, ptr, range_.size()); - } - - GMutableSpan get(StringRef name) const - { - return this->get(info_->index_of(name)); - } - - template<typename T> MutableSpan<T> get(int index) const - { - BLI_assert(info_->type_of(index).is<T>()); - return MutableSpan<T>(static_cast<T *>(buffers_[index]) + range_.start(), range_.size()); - } - - template<typename T> MutableSpan<T> get(StringRef name) const - { - return this->get<T>(info_->index_of(name)); - } - - std::optional<GMutableSpan> try_get(StringRef name, const CPPType &type) const - { - int index = info_->try_index_of(name, type); - if (index == -1) { - return {}; - } - else { - return this->get(index); - } - } - - template<typename T> std::optional<MutableSpan<T>> try_get(StringRef name) const - { - int index = info_->try_index_of(name); - if (index == -1) { - return {}; - } - else if (info_->type_of(index).is<T>()) { - return this->get<T>(index); - } - else { - return {}; - } - } - - MutableAttributesRef slice(IndexRange range) const - { - return this->slice(range.start(), range.size()); - } - - MutableAttributesRef slice(int64_t start, int64_t size) const - { - return MutableAttributesRef(*info_, buffers_, range_.slice(start, size)); - } -}; - -class AttributesRef { - private: - const AttributesInfo *info_; - Span<const void *> buffers_; - IndexRange range_; - - public: - AttributesRef(const AttributesInfo &info, Span<const void *> buffers, int64_t size) - : AttributesRef(info, buffers, IndexRange(size)) - { - } - - AttributesRef(const AttributesInfo &info, Span<const void *> buffers, IndexRange range) - : info_(&info), buffers_(buffers), range_(range) - { - } - - AttributesRef(MutableAttributesRef attributes) - : info_(attributes.info_), buffers_(attributes.buffers_), range_(attributes.range_) - { - } - - int64_t size() const - { - return range_.size(); - } - - const AttributesInfo &info() const - { - return *info_; - } - - GSpan get(int index) const - { - const CPPType &type = info_->type_of(index); - const void *ptr = POINTER_OFFSET(buffers_[index], type.size() * range_.start()); - return GSpan(type, ptr, range_.size()); - } - - GSpan get(StringRef name) const - { - return this->get(info_->index_of(name)); - } - - template<typename T> Span<T> get(int index) const - { - BLI_assert(info_->type_of(index).is<T>()); - return Span<T>(static_cast<T *>(buffers_[index]) + range_.start(), range_.size()); - } - - template<typename T> Span<T> get(StringRef name) const - { - return this->get<T>(info_->index_of(name)); - } - - std::optional<GSpan> try_get(StringRef name, const CPPType &type) const - { - int64_t index = info_->try_index_of(name, type); - if (index == -1) { - return {}; - } - else { - return this->get(index); - } - } - - template<typename T> std::optional<Span<T>> try_get(StringRef name) const - { - int index = info_->try_index_of(name); - if (index == -1) { - return {}; - } - else if (info_->type_of(index).is<T>()) { - return this->get<T>(index); - } - else { - return {}; - } - } - - AttributesRef slice(IndexRange range) const - { - return this->slice(range.start(), range.size()); - } - - AttributesRef slice(int64_t start, int64_t size) const - { - return AttributesRef(*info_, buffers_, range_.slice(start, size)); - } -}; - -} // namespace blender::fn |