mirror of
https://github.com/starr-dusT/yuzu-mainline
synced 2024-03-05 21:12:25 -08:00
9f82a9a244
Previously, we were reading the keys everytime a KeyManager object was created, causing yuzu to reread the keys file multiple hundreds of times when loading the game list. With this change, it is only loaded once. On my system, this decreased game list loading times by a factor of 20.
68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
// Copyright 2018 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include <vector>
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#include "common/common_types.h"
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#include "common/swap.h"
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#include "core/crypto/key_manager.h"
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#include "core/file_sys/content_archive.h"
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#include "core/file_sys/vfs.h"
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#include "core/loader/loader.h"
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namespace FileSys {
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struct NAXHeader {
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std::array<u8, 0x20> hmac;
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u64_le magic;
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std::array<Core::Crypto::Key128, 2> key_area;
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u64_le file_size;
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INSERT_PADDING_BYTES(0x30);
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};
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static_assert(sizeof(NAXHeader) == 0x80, "NAXHeader has incorrect size.");
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enum class NAXContentType : u8 {
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Save = 0,
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NCA = 1,
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};
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class NAX : public ReadOnlyVfsDirectory {
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public:
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explicit NAX(VirtualFile file);
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explicit NAX(VirtualFile file, std::array<u8, 0x10> nca_id);
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~NAX() override;
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Loader::ResultStatus GetStatus() const;
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VirtualFile GetDecrypted() const;
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std::unique_ptr<NCA> AsNCA() const;
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NAXContentType GetContentType() const;
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std::vector<std::shared_ptr<VfsFile>> GetFiles() const override;
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std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override;
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std::string GetName() const override;
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std::shared_ptr<VfsDirectory> GetParentDirectory() const override;
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private:
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Loader::ResultStatus Parse(std::string_view path);
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std::unique_ptr<NAXHeader> header;
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VirtualFile file;
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Loader::ResultStatus status;
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NAXContentType type{};
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VirtualFile dec_file;
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Core::Crypto::KeyManager& keys = Core::Crypto::KeyManager::instance();
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};
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} // namespace FileSys
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