dolphin/Source/Core/DiscIO/DiscScrubber.h
Pierre Bourdon e149ad4f0a
treewide: convert GPLv2+ license info to SPDX tags
SPDX standardizes how source code conveys its copyright and licensing
information. See https://spdx.github.io/spdx-spec/1-rationale/ . SPDX
tags are adopted in many large projects, including things like the Linux
kernel.
2021-07-05 04:35:56 +02:00

57 lines
1.3 KiB
C++

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