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(WarcEncryption): access ShiinaImage property via interface.

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This commit is contained in:
morkt 2016-09-15 14:16:27 +04:00
parent 98d0c47cfb
commit 58826234bd
1 changed files with 51 additions and 5 deletions
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56
ArcFormats/ShiinaRio/WarcEncryption.cs
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@ -38,10 +38,22 @@ namespace GameRes.Formats.ShiinaRio
public int EntryNameSize;
public byte[] CryptKey;
public uint[] HelperKey;
public byte[] ShiinaImage;
public byte[] Region;
public byte[] DecodeBin;
public IDecryptExtra ExtraCrypt;
public IByteArray ShiinaImage;
public IDecryptExtra ExtraCrypt;
}
public interface IByteArray
{
int Length { get; }
byte this[int i] { get; }
}
public interface IDecryptExtra
{
void Decrypt (byte[] data, int index, uint length, uint flags);
void Encrypt (byte[] data, int index, uint length, uint flags);
}
internal class Decoder
@ -593,10 +605,44 @@ namespace GameRes.Formats.ShiinaRio
public static EncryptionScheme[] KnownSchemes = new EncryptionScheme[0];
}
public interface IDecryptExtra
[Serializable]
public class ImageArray : IByteArray
{
void Decrypt (byte[] data, int index, uint length, uint flags);
void Encrypt (byte[] data, int index, uint length, uint flags);
private byte[] m_common;
private byte[] m_extra;
private int m_common_length;
static readonly byte[] EmptyArray = new byte[0]; // Array.Empty<T>() available in .Net 4.6 only
public ImageArray (byte[] common) : this (common, common.Length, EmptyArray)
{
}
public ImageArray (byte[] common, byte[] extra) : this (common, common.Length, extra)
{
}
public ImageArray (byte[] common, int common_length, byte[] extra)
{
if (common_length > common.Length)
throw new IndexOutOfRangeException();
m_common = common;
m_extra = extra;
m_common_length = common_length;
}
public int Length { get { return m_common_length + m_extra.Length; } }
public byte this[int i]
{
get
{
if (i < m_common_length)
return m_common[i];
else
return m_extra[i - m_common_length];
}
}
}
[Serializable]