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deba9ce256
New dolphin-tool command: "header" -b / --block_size -c / --compression -l / --compression_level Informative RVZ/WIA header2 value "compression_level" is now a s32 instead of a u32, because negative compression is a thing. Speaking of, it is now possible to use negative compression levels in dolphin-tool's convert command (not the GUI, though).
70 lines
1.5 KiB
C++
70 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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bool IsDataSizeAccurate() const override { return true; }
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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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