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DiscIO: Add parameters to BlobReader::SupportsReadWiiDecrypted

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It's possible (but rare) for a WIA or RVZ file to support
this for some partitions but not all, and for the game and
the blob code to disagree on how large a partition is.
This commit is contained in:
JosJuice
2020-08-29 15:12:02 +02:00
parent 800b2480ec
commit 047bb80337
7 changed files with 72 additions and 34 deletions
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30
Source/Core/DiscIO/DirectoryBlob.cpp
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@ -406,25 +406,33 @@ bool DirectoryBlobReader::Read(u64 offset, u64 length, u8* buffer)
.Read(offset, length, buffer);
}
bool DirectoryBlobReader::SupportsReadWiiDecrypted() const
const DirectoryBlobPartition* DirectoryBlobReader::GetPartition(u64 offset, u64 size,
u64 partition_data_offset) const
{
return m_is_wii;
const auto it = m_partitions.find(partition_data_offset);
if (it == m_partitions.end())
return nullptr;
if (offset + size > it->second.GetDataSize())
return nullptr;
return &it->second;
}
bool DirectoryBlobReader::SupportsReadWiiDecrypted(u64 offset, u64 size,
u64 partition_data_offset) const
{
return static_cast<bool>(GetPartition(offset, size, partition_data_offset));
}
bool DirectoryBlobReader::ReadWiiDecrypted(u64 offset, u64 size, u8* buffer,
u64 partition_data_offset)
{
if (!m_is_wii)
const DirectoryBlobPartition* partition = GetPartition(offset, size, partition_data_offset);
if (!partition)
return false;
auto it = m_partitions.find(partition_data_offset);
if (it == m_partitions.end())
return false;
if (offset + size > it->second.GetDataSize())
return false;
return it->second.GetContents().Read(offset, size, buffer);
return partition->GetContents().Read(offset, size, buffer);
}
bool DirectoryBlobReader::EncryptPartitionData(u64 offset, u64 size, u8* buffer,