Leahnaya/pk3DS
1
0
Fork 0
mirror of https://github.com/kwsch/pk3DS.git synced 2026-10-02 13:57:14 -05:00
Code Issues Actions Packages Projects Releases Wiki Activity

Finish Decompressor

Browse Source 
May have an issue with endianness of commands (ie, command writing first
vs parameter).

Will test thoroughly later.
This commit is contained in:
Kurt
2015-05-21 15:28:19 -07:00
parent 64f53ca29c
commit 1dc2227ee2
1 changed files with 8 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
pk3DS/Tools/Scripts.cs
View File

@@ -27,8 +27,6 @@ internal static byte[] decompressScript(byte[] data)
val = br.ReadByte(); raw.Add(val);
}
}
byte[] compressedBytes = raw.ToArray();
// Interpret the bytecode
@@ -41,22 +39,22 @@ internal static byte[] decompressScript(byte[] data)
if ((second >> 7) > 0) // Many-bits-required command
{
// 2 Byte Signed Parameter
// Process Many-bits instructional
// there can only be 1 manybit based on max CMD value restriction; simple.
int cmd = (compressedBytes[1] & 0x7F << 7) | compressedBytes[2];
bw.Write(BitConverter.GetBytes((ushort)cmd), 0, 2);
int deviation = ((val >> 1) & 0x3F) - 0x40;
bw.Write(BitConverter.GetBytes(deviation), 0, 2);
// Process Many-bits instructional
{
// there can only be 1 manybit based on max CMD value restriction; simple.
int cmd = (compressedBytes[0] & 0x7F << 7) | compressedBytes[1];
bw.Write(BitConverter.GetBytes((ushort)cmd), 0, 2);
}
}
else if ((val >> 7) > 0)
{
// 3 Byte Signed Parameter
// Process Many-bits instructional
bw.Write((byte)(((val & 0x1) << 7) | compressedBytes[1])); // bottom bit is sent to low byte as the 8th bit
int deviation = ((val >> 1) & 0x3F) - 0x40;
bw.Write(BitConverter.GetBytes(deviation), 0, 3);
bw.Write((byte)(((val & 0x1) << 7) | compressedBytes[1])); // bottom bit is sent to low byte as the 8th bit
}
else
{