diff options
Diffstat (limited to 'Ryujinx.Core/Loaders/Compression')
| -rw-r--r-- | Ryujinx.Core/Loaders/Compression/Lz4.cs | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/Ryujinx.Core/Loaders/Compression/Lz4.cs b/Ryujinx.Core/Loaders/Compression/Lz4.cs deleted file mode 100644 index eb1602a0..00000000 --- a/Ryujinx.Core/Loaders/Compression/Lz4.cs +++ /dev/null @@ -1,78 +0,0 @@ -using System; - -namespace Ryujinx.Core.Loaders.Compression -{ - static class Lz4 - { - public static byte[] Decompress(byte[] Cmp, int DecLength) - { - byte[] Dec = new byte[DecLength]; - - int CmpPos = 0; - int DecPos = 0; - - int GetLength(int Length) - { - byte Sum; - - if (Length == 0xf) - { - do - { - Length += (Sum = Cmp[CmpPos++]); - } - while (Sum == 0xff); - } - - return Length; - } - - do - { - byte Token = Cmp[CmpPos++]; - - int EncCount = (Token >> 0) & 0xf; - int LitCount = (Token >> 4) & 0xf; - - //Copy literal chunck - LitCount = GetLength(LitCount); - - Buffer.BlockCopy(Cmp, CmpPos, Dec, DecPos, LitCount); - - CmpPos += LitCount; - DecPos += LitCount; - - if (CmpPos >= Cmp.Length) - { - break; - } - - //Copy compressed chunck - int Back = Cmp[CmpPos++] << 0 | - Cmp[CmpPos++] << 8; - - EncCount = GetLength(EncCount) + 4; - - int EncPos = DecPos - Back; - - if (EncCount <= Back) - { - Buffer.BlockCopy(Dec, EncPos, Dec, DecPos, EncCount); - - DecPos += EncCount; - } - else - { - while (EncCount-- > 0) - { - Dec[DecPos++] = Dec[EncPos++]; - } - } - } - while (CmpPos < Cmp.Length && - DecPos < Dec.Length); - - return Dec; - } - } -}
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