79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
// Copyright 2008 Dolphin Emulator Project
|
|
// Licensed under GPLv2+
|
|
// Refer to the license.txt file included.
|
|
|
|
// DiscScrubber removes the garbage data from discs (currently Wii only) which
|
|
// is on the disc due to encryption
|
|
|
|
// It could be adapted to GameCube discs, but the gain is most likely negligible,
|
|
// and having 1:1 backups of discs is always nice when they are reasonably sized
|
|
|
|
// Note: the technique is inspired by Wiiscrubber, but much simpler - intentionally :)
|
|
|
|
#pragma once
|
|
|
|
#include <array>
|
|
#include <memory>
|
|
#include <string>
|
|
#include <vector>
|
|
#include "Common/CommonTypes.h"
|
|
|
|
namespace File
|
|
{
|
|
class IOFile;
|
|
}
|
|
|
|
namespace DiscIO
|
|
{
|
|
class IVolume;
|
|
struct Partition;
|
|
|
|
class DiscScrubber final
|
|
{
|
|
public:
|
|
DiscScrubber();
|
|
~DiscScrubber();
|
|
|
|
bool SetupScrub(const std::string& filename, int block_size);
|
|
size_t GetNextBlock(File::IOFile& in, u8* buffer);
|
|
|
|
private:
|
|
struct PartitionHeader final
|
|
{
|
|
u8* ticket[0x2a4];
|
|
u32 tmd_size;
|
|
u64 tmd_offset;
|
|
u32 cert_chain_size;
|
|
u64 cert_chain_offset;
|
|
// H3Size is always 0x18000
|
|
u64 h3_offset;
|
|
u64 data_offset;
|
|
u64 data_size;
|
|
// TMD would be here
|
|
u64 dol_offset;
|
|
u64 dol_size;
|
|
u64 fst_offset;
|
|
u64 fst_size;
|
|
u32 apploader_size;
|
|
u32 apploader_trailer_size;
|
|
};
|
|
|
|
void MarkAsUsed(u64 offset, u64 size);
|
|
void MarkAsUsedE(u64 partition_data_offset, u64 offset, u64 size);
|
|
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, PartitionHeader* header);
|
|
|
|
std::string m_filename;
|
|
std::unique_ptr<IVolume> m_disc;
|
|
|
|
std::vector<u8> m_free_table;
|
|
u64 m_file_size = 0;
|
|
u64 m_block_count = 0;
|
|
u32 m_block_size = 0;
|
|
bool m_is_scrubbing = false;
|
|
};
|
|
|
|
} // namespace DiscIO
|