public void Load(ExtendedBinaryReader reader)
{
LayerName = reader.ReadSignature(0x20);
uint unknown20 = reader.ReadUInt32();
TextureID = reader.ReadInt32();
uint Offset = reader.ReadUInt32();
uint unknown2C = reader.ReadUInt32();
//
uint oldpos = (uint)reader.GetPosition();
reader.JumpTo(Offset);
reader.JumpAhead(0x164);
LayerOffX = reader.ReadSingle();
LayerOffY = reader.ReadSingle();
reader.JumpAhead(4);
LayerWidth = reader.ReadSingle();
LayerHeight = reader.ReadSingle();
reader.JumpAhead(0x88); // Unknown
/*
* Top Left
* Top Right
* Bottom Left
* Bottom Right
*/
for (int i = 0; i < 4; ++i)
{
Verts.Add(new MAVert(reader));
}
reader.JumpTo(oldpos);
reader.JumpAhead(0x84); // Unknown
}
public static byte[] DecompressLZ77(this byte[] compressed)
{
byte[] buffer = null;
using (var reader = new ExtendedBinaryReader(new MemoryStream(compressed)))
{
int position = 0;
long flagPosition = 0;
if (reader.ReadSignature() == "LZ77")
{
int uncompressedSize = reader.ReadInt32();
int lz77Step = reader.ReadInt32();
int offset = reader.ReadInt32();
flagPosition = reader.GetPosition();
reader.JumpTo(offset);
buffer = new byte[uncompressedSize];
}
int flagCount = 0;
int flag = 0;
while (true)
{
if (flagCount == 0)
{
if (flagPosition >= compressed.Length)
{
break;
}
if (flagPosition == reader.GetPosition())
{
reader.JumpAhead(1);
}
flag = compressed[flagPosition++];
flagCount = 8;
}
if ((flag & 0x80) != 0)
{
if (reader.GetPosition() + 2 > compressed.Length)
{
break;
}
int backStep = reader.ReadByte();
int amount = reader.ReadByte();
for (amount += 3; (amount--) != 0; position++)
{
if (position >= buffer.Length)
{
break;
}
buffer[position] = buffer[position - backStep];
}
}
else
{
if (position >= buffer.Length)
{
break;
}
buffer[position++] = reader.ReadByte();
}
flag <<= 1;
flagCount--;
}
}
return(buffer);
}
