public GraphObject(ABinaryReader binaryReader)
{
Visible = true;
ParentIndex = binaryReader.ReadS16();
ChildIndex = binaryReader.ReadS16();
NextIndex = binaryReader.ReadS16();
PrevIndex = binaryReader.ReadS16();
if (binaryReader.Read8() != 0)
{
#if AROOKAS_DEMOLISHER_CHECKPADDING
throw new Exception(String.Format("GraphObject padding != 0 at 0x{0:X8}.", binaryReader.Stream.Position));
#endif
}
RenderFlags = (GraphObjectRenderFlags)binaryReader.Read8();
if (binaryReader.Read16() != 0)
{
#if AROOKAS_DEMOLISHER_CHECKPADDING
throw new Exception(String.Format("GraphObject padding != 0 at 0x{0:X8}.", binaryReader.Stream.Position));
#endif
}
Scale = new Vector3(binaryReader.ReadSingle(), binaryReader.ReadSingle(), binaryReader.ReadSingle());
Rotation = new Vector3(binaryReader.ReadSingle(), binaryReader.ReadSingle(), binaryReader.ReadSingle());
Position = new Vector3(binaryReader.ReadSingle(), binaryReader.ReadSingle(), binaryReader.ReadSingle());
BoundingBox = new BoundingBox(binaryReader.ReadVector3D().ToVector3(), binaryReader.ReadVector3D().ToVector3());
unk3 = binaryReader.ReadSingle();
int partCount = binaryReader.ReadS16();
if (binaryReader.Read16() != 0)
{
#if AROOKAS_DEMOLISHER_CHECKPADDING
throw new Exception(String.Format("GraphObject padding != 0 at 0x{0:X8}.", binaryReader.Stream.Position));
#endif
}
int partOffset = binaryReader.ReadS32();
if (binaryReader.Read32s(7).Any(zero => zero != 0))
{
#if AROOKAS_DEMOLISHER_CHECKPADDING
throw new Exception(String.Format("GraphObject padding != 0 at 0x{0:X8}.", binaryReader.Stream.Position));
#endif
}
binaryReader.Goto(partOffset);
parts = CollectionHelper.Initialize <Part>(partCount, () => new Part(binaryReader));
binaryReader.Back();
}
public static Stream Decompress(string fileName)
{
if (!IsCompressed(fileName))
{
return(File.OpenRead(fileName));
}
byte[] bytesToDecompress = File.ReadAllBytes(fileName);
using (ABinaryReader codeReader = new ABinaryReader(bytesToDecompress.ToMemoryStream(false, true), Endianness.Big, Encoding.GetEncoding(932)),
countReader = new ABinaryReader(bytesToDecompress.ToMemoryStream(false, true), Endianness.Big, Encoding.GetEncoding(932)),
dataReader = new ABinaryReader(bytesToDecompress.ToMemoryStream(false, true), Endianness.Big, Encoding.GetEncoding(932)))
{
// Parse the header.
string headerIdentifier = codeReader.ReadRawString(4);
int uncompressedSize = codeReader.ReadS32();
countReader.Position = codeReader.ReadS32();
dataReader.Position = codeReader.ReadS32();
// This is the buffer where we will put our decompressed data.
// I would use an ABinaryWriter for this, but we need to read/write from the same buffer for the RLE parts.
byte[] outputArray = new byte[uncompressedSize];
int outPosition = 0; // Our position in the destination buffer.
uint validBitsCount = 0; // The number of valid bits left in the code byte.
byte currentCodeByte = 0; // Our current code byte.
// Begin decompression.
while (outPosition < uncompressedSize)
{
// If the current code byte is used, get a new one.
if (validBitsCount <= 0)
{
currentCodeByte = codeReader.Read8();
validBitsCount = 8;
}
// If the next bit in the code byte is a 1, do a direct, 1:1 copy of the next data byte; otherwise, uncompress a chunk of data.
if ((currentCodeByte & 0x80) == 0x80)
{
outputArray[outPosition++] = dataReader.Read8();
}
else
{
// Read the count data.
ushort count = countReader.Read16();
// The last three nybbles represent the distance in the buffer to go back.
int distance = (count & 0xFFF);
// Calculate the position from which we start.
int startOffset = (outPosition - (distance + 1));
// The upper nybble of count; if zero, read a third byte and add 0x10.
int byteCount = ((count >> 12) & 0xF);
// If the upper nybble of the count is equal to zero, that means the number of bytes is too large for a nybble and is actually in the next whole byte.
// Add 0x10 to this byte's value, possibly to account for the original nybble. (How does Thakis figure this crap out?)
if (byteCount == 0)
{
byteCount = (dataReader.Read8() + 0x10);
}
// Take into consideration the two bytes for the count by adding two to the byte count.
byteCount += 2;
// Copy the run data.
Repeater.Repeat(byteCount, () => outputArray[outPosition++] = outputArray[startOffset++]);
}
// Get the next bit in the code byte.
currentCodeByte <<= 1;
validBitsCount--;
}
// Return the uncompressed data.
return(outputArray.ToMemoryStream(false, true));
}
}
public static Stream Decompress(string fileName)
{
if (!IsCompressed(fileName))
{
return File.OpenRead(fileName);
}
byte[] bytesToDecompress = File.ReadAllBytes(fileName);
using (ABinaryReader codeReader = new ABinaryReader(bytesToDecompress.ToMemoryStream(false, true), Endianness.Big, Encoding.GetEncoding(932)),
countReader = new ABinaryReader(bytesToDecompress.ToMemoryStream(false, true), Endianness.Big, Encoding.GetEncoding(932)),
dataReader = new ABinaryReader(bytesToDecompress.ToMemoryStream(false, true), Endianness.Big, Encoding.GetEncoding(932)))
{
// Parse the header.
string headerIdentifier = codeReader.ReadRawString(4);
int uncompressedSize = codeReader.ReadS32();
countReader.Position = codeReader.ReadS32();
dataReader.Position = codeReader.ReadS32();
// This is the buffer where we will put our decompressed data.
// I would use an ABinaryWriter for this, but we need to read/write from the same buffer for the RLE parts.
byte[] outputArray = new byte[uncompressedSize];
int outPosition = 0; // Our position in the destination buffer.
uint validBitsCount = 0; // The number of valid bits left in the code byte.
byte currentCodeByte = 0; // Our current code byte.
// Begin decompression.
while (outPosition < uncompressedSize)
{
// If the current code byte is used, get a new one.
if (validBitsCount <= 0)
{
currentCodeByte = codeReader.Read8();
validBitsCount = 8;
}
// If the next bit in the code byte is a 1, do a direct, 1:1 copy of the next data byte; otherwise, uncompress a chunk of data.
if ((currentCodeByte & 0x80) == 0x80)
{
outputArray[outPosition++] = dataReader.Read8();
}
else
{
// Read the count data.
ushort count = countReader.Read16();
// The last three nybbles represent the distance in the buffer to go back.
int distance = (count & 0xFFF);
// Calculate the position from which we start.
int startOffset = (outPosition - (distance + 1));
// The upper nybble of count; if zero, read a third byte and add 0x10.
int byteCount = ((count >> 12) & 0xF);
// If the upper nybble of the count is equal to zero, that means the number of bytes is too large for a nybble and is actually in the next whole byte.
// Add 0x10 to this byte's value, possibly to account for the original nybble. (How does Thakis figure this crap out?)
if (byteCount == 0)
{
byteCount = (dataReader.Read8() + 0x10);
}
// Take into consideration the two bytes for the count by adding two to the byte count.
byteCount += 2;
// Copy the run data.
Repeater.Repeat(byteCount, () => outputArray[outPosition++] = outputArray[startOffset++]);
}
// Get the next bit in the code byte.
currentCodeByte <<= 1;
validBitsCount--;
}
// Return the uncompressed data.
return outputArray.ToMemoryStream(false, true);
}
}
