mirror of
https://github.com/Lime3DS/Lime3DS
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85 lines
2.7 KiB
C++
85 lines
2.7 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 <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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}
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namespace FileSys {
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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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NCCHFile(std::vector<u8> buffer) : file_buffer(buffer) {}
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ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const override;
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ResultVal<size_t> Write(u64 offset, size_t length, bool flush, 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) override;
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ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info) override;
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ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path) const override;
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};
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} // namespace FileSys
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