104 lines
2.0 KiB
C++
104 lines
2.0 KiB
C++
#pragma once
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#include <filesystem>
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#include <system_error>
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#include "assets/data_stores.hpp"
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#include "assets/path_id_lookups.hpp"
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#include "assets/data/material_data.hpp"
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#include "assets/data/material_library_data.hpp"
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#include "assets/data_stores/material_store.hpp"
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#include "assets/data_stores/material_library_store.hpp"
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#include "util/result.hpp"
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namespace assets
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{
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namespace mtl_parser_error
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{
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enum class codes {
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ok = 0,
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cannot_open_file,
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// TODO these are incomplete
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cannot_open_texture,
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malformed_ambient_color,
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malformed_diffuse_color,
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malformed_specular_color,
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malformed_specular_exponent,
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malformed_dissolve,
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unknown_line_begin
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};
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} // namespace mtl_loader_error
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struct mtl_parser
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{
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static constexpr auto name = std::string_view("mtl");
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using data_type = material_library_data;
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using store_type = material_library_store;
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using lookup_type = material_library_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 prefetcher_context
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{
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public:
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prefetcher_context(
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path_id_lookups& lookups
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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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[[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_lookups;
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std::vector<char> m_buffer{};
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};
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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& lookups,
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data_stores& 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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[[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_lookups;
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data_stores* m_stores;
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data_type m_buffer{};
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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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