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DVDInterface: Translate Wii partition offsets for timing purposes

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Until now, Dolphin has been using the wrong values
for calculating DVD timing for decrypted Wii reads
(which Wii games essentially always use).
This commit is contained in:
JosJuice
2017-02-10 18:57:58 +01:00
parent c96bcace2f
commit 49ec22bc42
4 changed files with 45 additions and 27 deletions
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1
Source/Core/DiscIO/Volume.h
View File

@ -37,6 +37,7 @@ public:
virtual bool GetTitleID(u64*) const { return false; }
virtual std::vector<u8> GetTMD() const { return {}; }
virtual u64 PartitionOffsetToRawOffset(u64 offset) const { return offset; }
virtual std::string GetGameID() const = 0;
virtual std::string GetMakerID() const = 0;
virtual u16 GetRevision() const = 0;

6
Source/Core/DiscIO/VolumeWiiCrypted.cpp
View File

@ -140,6 +140,12 @@ std::vector<u8> CVolumeWiiCrypted::GetTMD() const
return buffer;
}
u64 CVolumeWiiCrypted::PartitionOffsetToRawOffset(u64 offset) const
{
return m_VolumeOffset + m_dataOffset + (offset / BLOCK_DATA_SIZE * BLOCK_TOTAL_SIZE) +
(offset % BLOCK_DATA_SIZE);
}
std::string CVolumeWiiCrypted::GetGameID() const
{
if (m_pReader == nullptr)

3
Source/Core/DiscIO/VolumeWiiCrypted.h
View File

@ -32,6 +32,7 @@ public:
bool Read(u64 _Offset, u64 _Length, u8* _pBuffer, bool decrypt) const override;
bool GetTitleID(u64* buffer) const override;
std::vector<u8> GetTMD() const override;
u64 PartitionOffsetToRawOffset(u64 offset) const override;
std::string GetGameID() const override;
std::string GetMakerID() const override;
u16 GetRevision() const override;
@ -53,11 +54,11 @@ public:
u64 GetSize() const override;
u64 GetRawSize() const override;
private:
static constexpr unsigned int BLOCK_HEADER_SIZE = 0x0400;
static constexpr unsigned int BLOCK_DATA_SIZE = 0x7C00;
static constexpr unsigned int BLOCK_TOTAL_SIZE = BLOCK_HEADER_SIZE + BLOCK_DATA_SIZE;
private:
std::unique_ptr<IBlobReader> m_pReader;
std::unique_ptr<mbedtls_aes_context> m_AES_ctx;