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a87dffe52d
Previously, we had WBFS and CISO which both returned an upper bound of the size, and other formats which returned an accurate size. But now we also have NFS, which returns a lower bound of the size. To allow VolumeVerifier to make better informed decisions for NFS, let's use an enum instead of a bool for the type of data size a blob has.
69 lines
1.5 KiB
C++
69 lines
1.5 KiB
C++
// Copyright 2016 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <memory>
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#include <utility>
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#include <vector>
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#include "Common/CommonTypes.h"
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#include "Common/IOFile.h"
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#include "DiscIO/Blob.h"
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namespace DiscIO
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{
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static constexpr u32 TGC_MAGIC = 0xA2380FAE;
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struct TGCHeader
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{
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u32 magic;
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u32 unknown_1;
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u32 tgc_header_size;
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u32 disc_header_area_size;
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u32 fst_real_offset;
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u32 fst_size;
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u32 fst_max_size;
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u32 dol_real_offset;
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u32 dol_size;
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u32 file_area_real_offset;
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u32 unknown_2;
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u32 unknown_3;
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u32 unknown_4;
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u32 file_area_virtual_offset;
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};
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class TGCFileReader final : public BlobReader
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{
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public:
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static std::unique_ptr<TGCFileReader> Create(File::IOFile file);
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BlobType GetBlobType() const override { return BlobType::TGC; }
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u64 GetRawSize() const override { return m_size; }
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u64 GetDataSize() const override;
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DataSizeType GetDataSizeType() const override { return DataSizeType::Accurate; }
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u64 GetBlockSize() const override { return 0; }
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bool HasFastRandomAccessInBlock() const override { return true; }
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std::string GetCompressionMethod() const override { return {}; }
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std::optional<int> GetCompressionLevel() const override { return std::nullopt; }
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bool Read(u64 offset, u64 nbytes, u8* out_ptr) override;
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private:
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TGCFileReader(File::IOFile file);
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File::IOFile m_file;
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u64 m_size;
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std::vector<u8> m_fst;
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// Stored as big endian in memory, regardless of the host endianness
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TGCHeader m_header = {};
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};
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} // namespace DiscIO
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