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a6d9baa05a
To eliminate System::GetInstance usage. Archive type like SelfNCCH and SaveData changes the actual reference path for different client, so archive backend interface should accept client information from the service interface. Currently we only pass the program ID as the client information.
107 lines
3.4 KiB
C++
107 lines
3.4 KiB
C++
// Copyright 2014 Citra Emulator Project
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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 <memory>
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#include <string>
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#include "core/file_sys/archive_backend.h"
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#include "core/file_sys/file_backend.h"
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#include "core/hle/result.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// FileSys namespace
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namespace Service {
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namespace FS {
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enum class MediaType : u32;
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}
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} // namespace Service
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namespace FileSys {
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enum class NCCHFilePathType : u32 {
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RomFS = 0,
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Code = 1,
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ExeFS = 2,
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};
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enum class NCCHFileOpenType : u32 {
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NCCHData = 0,
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SaveData = 1,
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};
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/// Helper function to generate a Path for NCCH archives
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Path MakeNCCHArchivePath(u64 tid, Service::FS::MediaType media_type);
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/// Helper function to generate a Path for NCCH files
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Path MakeNCCHFilePath(NCCHFileOpenType open_type, u32 content_index, NCCHFilePathType filepath_type,
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std::array<char, 8>& exefs_filepath);
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/// Archive backend for NCCH Archives (RomFS, ExeFS)
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class NCCHArchive : public ArchiveBackend {
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public:
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explicit NCCHArchive(u64 title_id, Service::FS::MediaType media_type)
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: title_id(title_id), media_type(media_type) {}
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std::string GetName() const override {
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return "NCCHArchive";
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}
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ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path,
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const Mode& mode) const override;
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ResultCode DeleteFile(const Path& path) const override;
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ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
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ResultCode DeleteDirectory(const Path& path) const override;
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ResultCode DeleteDirectoryRecursively(const Path& path) const override;
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ResultCode CreateFile(const Path& path, u64 size) const override;
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ResultCode CreateDirectory(const Path& path) const override;
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ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
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ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) const override;
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u64 GetFreeBytes() const override;
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protected:
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u64 title_id;
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Service::FS::MediaType media_type;
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};
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// File backend for NCCH files
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class NCCHFile : public FileBackend {
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public:
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explicit NCCHFile(std::vector<u8> buffer, std::unique_ptr<DelayGenerator> delay_generator_);
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ResultVal<std::size_t> Read(u64 offset, std::size_t length, u8* buffer) const override;
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ResultVal<std::size_t> Write(u64 offset, std::size_t length, bool flush,
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const u8* buffer) override;
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u64 GetSize() const override;
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bool SetSize(u64 size) const override;
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bool Close() const override {
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return false;
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}
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void Flush() const override {}
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private:
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std::vector<u8> file_buffer;
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u64 data_offset;
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u64 data_size;
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};
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/// File system interface to the NCCH archive
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class ArchiveFactory_NCCH final : public ArchiveFactory {
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public:
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explicit ArchiveFactory_NCCH();
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std::string GetName() const override {
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return "NCCH";
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}
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ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path, u64 program_id) override;
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ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
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u64 program_id) override;
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ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path, u64 program_id) const override;
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};
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} // namespace FileSys
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