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57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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// DiscScrubber removes the pseudorandom padding data from discs
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// Note: the technique is inspired by Wiiscrubber, but much simpler - intentionally :)
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#pragma once
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#include <array>
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#include <string>
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#include <vector>
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#include "Common/CommonTypes.h"
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namespace File
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{
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class IOFile;
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}
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namespace DiscIO
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{
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class FileInfo;
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class Volume;
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struct Partition;
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class DiscScrubber final
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{
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public:
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DiscScrubber();
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~DiscScrubber();
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bool SetupScrub(const Volume* disc);
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// Returns true if the specified 32 KiB block only contains unused data
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bool CanBlockBeScrubbed(u64 offset) const;
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static constexpr size_t CLUSTER_SIZE = 0x8000;
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private:
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void MarkAsUsed(u64 offset, u64 size);
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void MarkAsUsedE(u64 partition_data_offset, u64 offset, u64 size);
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u64 ToClusterOffset(u64 offset) const;
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bool ReadFromVolume(u64 offset, u32& buffer, const Partition& partition);
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bool ReadFromVolume(u64 offset, u64& buffer, const Partition& partition);
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bool ParseDisc();
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bool ParsePartitionData(const Partition& partition);
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void ParseFileSystemData(u64 partition_data_offset, const FileInfo& directory);
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const Volume* m_disc;
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std::vector<u8> m_free_table;
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u64 m_file_size = 0;
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bool m_is_scrubbing = false;
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};
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} // namespace DiscIO
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