public Texture(string path, string xnb)
{
string fn = GetName(path, xnb);
if (fn == null)
throw new Exception(String.Format("Couldn't locate {0}", xnb));
using (BinaryReader b = new BinaryReader(File.Open(fn, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)))
{
UInt32 header = b.ReadUInt32();
// xnb header is XNBw, XNBx, XNBm for win, unix, mac, respectively.
if (header != 0x77424e58 && header != 0x78424e58 && header != 0x6d424e58)
throw new Exception(String.Format("{0} is not a valid XNB", xnb));
UInt16 version = b.ReadUInt16();
bool compressed = (version & 0x8000) == 0x8000;
version &= 0xff; //ignore graphics profile
if (version != 4 && version != 5)
throw new Exception(String.Format("{0}: Invalid XNB Version", xnb));
int length = b.ReadInt32(); //length of entire file
if (compressed)
{
int decompSize = b.ReadInt32();
MemoryStream ms = new MemoryStream(decompSize);
LzxDecoder lzx = new LzxDecoder(16);
for (int pos = 14; pos < length; )
{
b.BaseStream.Seek(pos, SeekOrigin.Begin);
byte hi = b.ReadByte();
byte lo = b.ReadByte();
pos += 2;
int compLen = (hi << 8) | lo;
int decompLen = 0x8000;
if (hi == 0xff)
{
hi = lo;
lo = b.ReadByte();
decompLen = (hi << 8) | lo;
hi = b.ReadByte();
lo = b.ReadByte();
compLen = (hi << 8) | lo;
pos += 3;
}
if (compLen == 0 || decompLen == 0) //done
break;
if (lzx.Decompress(b.BaseStream, compLen, ms, decompLen) < 0)
throw new Exception("Failed to decompress");
pos += compLen;
}
ms.Seek(0, SeekOrigin.Begin);
ReadTexture(ms);
}
else
ReadTexture(b.BaseStream);
}
}
public Texture(string path, string xnb)
{
string fn = GetName(path, xnb);
if (fn == null)
{
throw new Exception(String.Format("Couldn't locate {0}", xnb));
}
using (BinaryReader b = new BinaryReader(File.Open(fn, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)))
{
UInt32 header = b.ReadUInt32();
// xnb header is XNBw, XNBx, XNBm for win, unix, mac, respectively.
if (header != 0x77424e58 && header != 0x78424e58 && header != 0x6d424e58)
{
throw new Exception(String.Format("{0} is not a valid XNB", xnb));
}
UInt16 version = b.ReadUInt16();
bool compressed = (version & 0x8000) == 0x8000;
version &= 0xff; //ignore graphics profile
if (version != 4 && version != 5)
{
throw new Exception(String.Format("{0}: Invalid XNB Version", xnb));
}
int length = b.ReadInt32(); //length of entire file
if (compressed)
{
int decompSize = b.ReadInt32();
MemoryStream ms = new MemoryStream(decompSize);
LzxDecoder lzx = new LzxDecoder(16);
for (int pos = 14; pos < length;)
{
b.BaseStream.Seek(pos, SeekOrigin.Begin);
byte hi = b.ReadByte();
byte lo = b.ReadByte();
pos += 2;
int compLen = (hi << 8) | lo;
int decompLen = 0x8000;
if (hi == 0xff)
{
hi = lo;
lo = b.ReadByte();
decompLen = (hi << 8) | lo;
hi = b.ReadByte();
lo = b.ReadByte();
compLen = (hi << 8) | lo;
pos += 3;
}
if (compLen == 0 || decompLen == 0) //done
{
break;
}
if (lzx.Decompress(b.BaseStream, compLen, ms, decompLen) < 0)
{
throw new Exception("Failed to decompress");
}
pos += compLen;
}
ms.Seek(0, SeekOrigin.Begin);
ReadTexture(ms);
}
else
{
ReadTexture(b.BaseStream);
}
}
}
