68 lines
1.4 KiB
C++
68 lines
1.4 KiB
C++
#pragma once
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#include <filesystem>
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#include <system_error>
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#include <string_view>
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#include <unordered_map>
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#include "assets/data_stores.hpp"
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#include "assets/data/mesh_data.hpp"
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#include "assets/data_stores.hpp"
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#include "assets/path_id_lookups.hpp"
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#include "util/vector_hash.hpp"
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namespace assets
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{
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struct stl_loader
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{
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static constexpr auto name = std::string_view("stl");
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using data_type = mesh_data;
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using store_type = mesh_store;
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using lookup_type = mesh_id_lookup;
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[[nodiscard]] std::error_code prefetch(
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path_id_lookups& lookups
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);
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[[nodiscard]] std::error_code load(
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path_id_lookups& lookups,
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data_stores& stores,
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bool pedantic = false
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);
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protected:
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class parser_context
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{
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public:
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parser_context(
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path_id_lookups& m_id_lookups,
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data_stores& m_stores
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);
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void operator()(lookup_type::const_pointer entry) noexcept;
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protected:
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void reset();
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z3d::vertex_index find_or_push_vertex(const component_indices& vertex_comp_indices);
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[[nodiscard]] std::optional<texture_id> fetch_texture_id(
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const std::filesystem::path& mtl_dir,
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std::string_view filename,
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std::string_view texture_type_name
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);
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private:
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path_id_lookups* m_id_lookups;
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data_stores* m_stores;
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data_type m_mesh{};
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std::unordered_map<mesh_vertex_components::position, z3d::vertex_index> m_vertex_index_lookup{};
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};
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private:
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std::vector<lookup_type::const_pointer> m_path_buffer;
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};
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}
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