DiscScrubber: Convert into a class
Allows potential multiple scrubbers to run at once. Also gets rid of the need to explicitly clean up resources.
This commit is contained in:
parent
389f8297c3
commit
4a9bc2340b
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@ -173,9 +173,10 @@ bool CompressFileToBlob(const std::string& infile, const std::string& outfile, u
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return false;
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return false;
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}
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}
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DiscScrubber disc_scrubber;
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if (sub_type == 1)
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if (sub_type == 1)
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{
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{
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if (!DiscScrubber::SetupScrub(infile, block_size))
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if (!disc_scrubber.SetupScrub(infile, block_size))
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{
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{
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PanicAlertT("\"%s\" failed to be scrubbed. Probably the image is corrupt.", infile.c_str());
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PanicAlertT("\"%s\" failed to be scrubbed. Probably the image is corrupt.", infile.c_str());
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return false;
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return false;
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@ -186,10 +187,7 @@ bool CompressFileToBlob(const std::string& infile, const std::string& outfile, u
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z_stream z = {};
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z_stream z = {};
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if (deflateInit(&z, 9) != Z_OK)
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if (deflateInit(&z, 9) != Z_OK)
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{
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DiscScrubber::Cleanup();
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return false;
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return false;
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}
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callback(GetStringT("Files opened, ready to compress."), 0, arg);
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callback(GetStringT("Files opened, ready to compress."), 0, arg);
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@ -243,7 +241,7 @@ bool CompressFileToBlob(const std::string& infile, const std::string& outfile, u
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size_t read_bytes;
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size_t read_bytes;
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if (scrubbing)
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if (scrubbing)
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read_bytes = DiscScrubber::GetNextBlock(inf, in_buf.data());
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read_bytes = disc_scrubber.GetNextBlock(inf, in_buf.data());
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else
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else
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inf.ReadArray(in_buf.data(), header.block_size, &read_bytes);
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inf.ReadArray(in_buf.data(), header.block_size, &read_bytes);
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if (read_bytes < header.block_size)
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if (read_bytes < header.block_size)
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@ -318,7 +316,6 @@ bool CompressFileToBlob(const std::string& infile, const std::string& outfile, u
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// Cleanup
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// Cleanup
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deflateEnd(&z);
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deflateEnd(&z);
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DiscScrubber::Cleanup();
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if (success)
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if (success)
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{
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{
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@ -20,63 +20,12 @@
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namespace DiscIO
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namespace DiscIO
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{
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{
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namespace DiscScrubber
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{
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#define CLUSTER_SIZE 0x8000
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#define CLUSTER_SIZE 0x8000
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static u8* m_FreeTable = nullptr;
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DiscScrubber::DiscScrubber() = default;
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static u64 m_FileSize;
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DiscScrubber::~DiscScrubber() = default;
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static u64 m_BlockCount;
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static u32 m_BlockSize;
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static int m_BlocksPerCluster;
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static bool m_isScrubbing = false;
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static std::string m_Filename;
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bool DiscScrubber::SetupScrub(const std::string& filename, int block_size)
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static std::unique_ptr<IVolume> s_disc;
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struct SPartitionHeader
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{
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u8* Ticket[0x2a4];
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u32 TMDSize;
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u64 TMDOffset;
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u32 CertChainSize;
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u64 CertChainOffset;
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// H3Size is always 0x18000
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u64 H3Offset;
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u64 DataOffset;
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u64 DataSize;
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// TMD would be here
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u64 DOLOffset;
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u64 DOLSize;
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u64 FSTOffset;
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u64 FSTSize;
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u32 ApploaderSize;
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u32 ApploaderTrailerSize;
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};
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struct SPartition
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{
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u32 GroupNumber;
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u32 Number;
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u64 Offset;
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u32 Type;
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SPartitionHeader Header;
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};
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struct SPartitionGroup
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{
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u32 numPartitions;
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u64 PartitionsOffset;
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std::vector<SPartition> PartitionsVec;
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};
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static SPartitionGroup PartitionGroup[4];
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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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bool ReadFromVolume(u64 _Offset, u32& _Buffer, bool _Decrypt);
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bool ReadFromVolume(u64 _Offset, u64& _Buffer, bool _Decrypt);
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bool ParseDisc();
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bool ParsePartitionData(SPartition& _rPartition);
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bool SetupScrub(const std::string& filename, int block_size)
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{
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{
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bool success = true;
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bool success = true;
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m_Filename = filename;
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m_Filename = filename;
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@ -89,41 +38,36 @@ bool SetupScrub(const std::string& filename, int block_size)
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return false;
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return false;
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}
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}
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m_BlocksPerCluster = CLUSTER_SIZE / m_BlockSize;
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m_disc = CreateVolumeFromFilename(filename);
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if (!m_disc)
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s_disc = CreateVolumeFromFilename(filename);
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if (!s_disc)
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return false;
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return false;
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m_FileSize = s_disc->GetSize();
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m_FileSize = m_disc->GetSize();
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u32 numClusters = (u32)(m_FileSize / CLUSTER_SIZE);
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u32 numClusters = (u32)(m_FileSize / CLUSTER_SIZE);
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// Warn if not DVD5 or DVD9 size
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// Warn if not DVD5 or DVD9 size
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if (numClusters != 0x23048 && numClusters != 0x46090)
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if (numClusters != 0x23048 && numClusters != 0x46090)
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{
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WARN_LOG(DISCIO, "%s is not a standard sized Wii disc! (%x blocks)", filename.c_str(),
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WARN_LOG(DISCIO, "%s is not a standard sized Wii disc! (%x blocks)", filename.c_str(),
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numClusters);
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numClusters);
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}
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// Table of free blocks
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// Table of free blocks
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m_FreeTable = new u8[numClusters];
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m_FreeTable.resize(numClusters, 1);
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std::fill(m_FreeTable, m_FreeTable + numClusters, 1);
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// Fill out table of free blocks
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// Fill out table of free blocks
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success = ParseDisc();
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success = ParseDisc();
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// Done with it; need it closed for the next part
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// Done with it; need it closed for the next part
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s_disc.reset();
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m_disc.reset();
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m_BlockCount = 0;
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m_BlockCount = 0;
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// Let's not touch the file if we've failed up to here :p
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if (!success)
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Cleanup();
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m_isScrubbing = success;
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m_isScrubbing = success;
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return success;
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return success;
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}
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}
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size_t GetNextBlock(File::IOFile& in, u8* buffer)
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size_t DiscScrubber::GetNextBlock(File::IOFile& in, u8* buffer)
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{
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{
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u64 CurrentOffset = m_BlockCount * m_BlockSize;
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u64 CurrentOffset = m_BlockCount * m_BlockSize;
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u64 i = CurrentOffset / CLUSTER_SIZE;
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u64 i = CurrentOffset / CLUSTER_SIZE;
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@ -146,19 +90,7 @@ size_t GetNextBlock(File::IOFile& in, u8* buffer)
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return ReadBytes;
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return ReadBytes;
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}
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}
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void Cleanup()
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void DiscScrubber::MarkAsUsed(u64 _Offset, u64 _Size)
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{
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if (m_FreeTable)
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delete[] m_FreeTable;
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m_FreeTable = nullptr;
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m_FileSize = 0;
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m_BlockCount = 0;
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m_BlockSize = 0;
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m_BlocksPerCluster = 0;
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m_isScrubbing = false;
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}
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void MarkAsUsed(u64 _Offset, u64 _Size)
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{
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{
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u64 CurrentOffset = _Offset;
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u64 CurrentOffset = _Offset;
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u64 EndOffset = CurrentOffset + _Size;
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u64 EndOffset = CurrentOffset + _Size;
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@ -173,7 +105,7 @@ void MarkAsUsed(u64 _Offset, u64 _Size)
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}
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}
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// Compensate for 0x400 (SHA-1) per 0x8000 (cluster), and round to whole clusters
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// Compensate for 0x400 (SHA-1) per 0x8000 (cluster), and round to whole clusters
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void MarkAsUsedE(u64 partition_data_offset, u64 offset, u64 size)
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void DiscScrubber::MarkAsUsedE(u64 partition_data_offset, u64 offset, u64 size)
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{
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{
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u64 first_cluster_start = offset / 0x7c00 * CLUSTER_SIZE + partition_data_offset;
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u64 first_cluster_start = offset / 0x7c00 * CLUSTER_SIZE + partition_data_offset;
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@ -192,21 +124,21 @@ void MarkAsUsedE(u64 partition_data_offset, u64 offset, u64 size)
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}
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}
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// Helper functions for reading the BE volume
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// Helper functions for reading the BE volume
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bool ReadFromVolume(u64 _Offset, u32& _Buffer, bool _Decrypt)
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bool DiscScrubber::ReadFromVolume(u64 _Offset, u32& _Buffer, bool _Decrypt)
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{
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{
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return s_disc->ReadSwapped(_Offset, &_Buffer, _Decrypt);
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return m_disc->ReadSwapped(_Offset, &_Buffer, _Decrypt);
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}
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}
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bool ReadFromVolume(u64 _Offset, u64& _Buffer, bool _Decrypt)
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bool DiscScrubber::ReadFromVolume(u64 _Offset, u64& _Buffer, bool _Decrypt)
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{
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{
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u32 temp_buffer;
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u32 temp_buffer;
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if (!s_disc->ReadSwapped(_Offset, &temp_buffer, _Decrypt))
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if (!m_disc->ReadSwapped(_Offset, &temp_buffer, _Decrypt))
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return false;
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return false;
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_Buffer = static_cast<u64>(temp_buffer) << 2;
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_Buffer = static_cast<u64>(temp_buffer) << 2;
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return true;
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return true;
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}
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}
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bool ParseDisc()
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bool DiscScrubber::ParseDisc()
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{
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{
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// Mark the header as used - it's mostly 0s anyways
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// Mark the header as used - it's mostly 0s anyways
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MarkAsUsed(0, 0x50000);
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MarkAsUsed(0, 0x50000);
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@ -264,24 +196,24 @@ bool ParseDisc()
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}
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}
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// Operations dealing with encrypted space are done here - the volume is swapped to allow this
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// Operations dealing with encrypted space are done here - the volume is swapped to allow this
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bool ParsePartitionData(SPartition& partition)
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bool DiscScrubber::ParsePartitionData(SPartition& partition)
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{
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{
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bool parsed_ok = true;
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bool parsed_ok = true;
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// Switch out the main volume temporarily
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// Switch out the main volume temporarily
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std::unique_ptr<IVolume> old_volume;
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std::unique_ptr<IVolume> old_volume;
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s_disc.swap(old_volume);
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m_disc.swap(old_volume);
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// Ready some stuff
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// Ready some stuff
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s_disc = CreateVolumeFromFilename(m_Filename, partition.GroupNumber, partition.Number);
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m_disc = CreateVolumeFromFilename(m_Filename, partition.GroupNumber, partition.Number);
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if (s_disc == nullptr)
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if (m_disc == nullptr)
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{
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{
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ERROR_LOG(DISCIO, "Failed to create volume from file %s", m_Filename.c_str());
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ERROR_LOG(DISCIO, "Failed to create volume from file %s", m_Filename.c_str());
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s_disc.swap(old_volume);
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m_disc.swap(old_volume);
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return false;
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return false;
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}
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}
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std::unique_ptr<IFileSystem> filesystem(CreateFileSystem(s_disc.get()));
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std::unique_ptr<IFileSystem> filesystem(CreateFileSystem(m_disc.get()));
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if (!filesystem)
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if (!filesystem)
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{
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{
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ERROR_LOG(DISCIO, "Failed to create filesystem for group %d partition %u",
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ERROR_LOG(DISCIO, "Failed to create filesystem for group %d partition %u",
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@ -321,11 +253,9 @@ bool ParsePartitionData(SPartition& partition)
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}
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}
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// Swap back
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// Swap back
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s_disc.swap(old_volume);
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m_disc.swap(old_volume);
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return parsed_ok;
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return parsed_ok;
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}
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}
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} // namespace DiscScrubber
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} // namespace DiscIO
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} // namespace DiscIO
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@ -12,7 +12,10 @@
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#pragma once
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#pragma once
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#include <array>
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#include <memory>
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#include <string>
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#include <string>
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#include <vector>
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#include "Common/CommonTypes.h"
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#include "Common/CommonTypes.h"
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namespace File
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namespace File
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@ -22,12 +25,71 @@ class IOFile;
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namespace DiscIO
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namespace DiscIO
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{
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{
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namespace DiscScrubber
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class IVolume;
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{
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bool SetupScrub(const std::string& filename, int block_size);
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size_t GetNextBlock(File::IOFile& in, u8* buffer);
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void Cleanup();
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} // namespace DiscScrubber
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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 std::string& filename, int block_size);
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size_t GetNextBlock(File::IOFile& in, u8* buffer);
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private:
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struct SPartitionHeader final
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{
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u8* Ticket[0x2a4];
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u32 TMDSize;
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u64 TMDOffset;
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u32 CertChainSize;
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u64 CertChainOffset;
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// H3Size is always 0x18000
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u64 H3Offset;
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u64 DataOffset;
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u64 DataSize;
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// TMD would be here
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u64 DOLOffset;
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u64 DOLSize;
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u64 FSTOffset;
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u64 FSTSize;
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u32 ApploaderSize;
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u32 ApploaderTrailerSize;
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};
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struct SPartition final
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{
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u32 GroupNumber;
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u32 Number;
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u64 Offset;
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u32 Type;
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SPartitionHeader Header;
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};
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struct SPartitionGroup final
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{
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u32 numPartitions;
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u64 PartitionsOffset;
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std::vector<SPartition> PartitionsVec;
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};
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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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bool ReadFromVolume(u64 offset, u32& buffer, bool decrypt);
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bool ReadFromVolume(u64 offset, u64& buffer, bool decrypt);
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bool ParseDisc();
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bool ParsePartitionData(SPartition& partition);
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std::string m_Filename;
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std::unique_ptr<IVolume> m_disc;
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std::array<SPartitionGroup, 4> PartitionGroup{};
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std::vector<u8> m_FreeTable;
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u64 m_FileSize = 0;
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u64 m_BlockCount = 0;
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u32 m_BlockSize = 0;
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bool m_isScrubbing = false;
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};
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} // namespace DiscIO
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} // namespace DiscIO
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