fmt_Utility.hpp

 
#pragma once
#include <twl/fmt/fmt_Common.hpp>
#include <twl/fmt/nfs/nfs_NitroFs.hpp>
 
namespace twl::fmt {
 
    struct Utility : public fs::FileFormat, public nfs::NitroFileSystemFormat {
 
        struct Header {
            u32 fnt_offset;
            u32 fnt_size;
            u32 fat_offset;
            u32 fat_size;
        };
 
        static constexpr size_t SectionAlignment = 0x20;
 
        Header header;
 
        Utility() {}
        Utility(const Utility&) = delete;
        Utility(Utility&&) = default;
 
        size_t GetBaseOffset() override {
            // Offset after FAT and FNT (and alignment)
            return util::AlignUp(this->GetFatEntriesOffset() + this->header.fat_size, 0x20);
        }
 
        size_t GetFatEntriesOffset() const override {
            return this->header.fat_offset;
        }
 
        size_t GetFatEntryCount() const override {
            return this->header.fat_size / sizeof(nfs::FileAllocationTableEntry);
        }
 
        Result OnFileSystemWrite(fs::BinaryFile &w_bf, const ssize_t size_diff) override {
            // TODO
            NTR_R_SUCCEED();
        }
 
        Result ReadValidateFrom(fs::File &rf) override;
        Result ReadAllFrom(fs::File &rf) override;
        Result WriteTo(fs::File &wf) override;
    };
 
}