public void generateBlocks()
{
blocks.Clear();
int blockCount = (uncompressedSize + blocksize - 1) / blocksize;
compressedSize = 0;
for (int i = 0; i < blockCount; i++)
{
int blockOffset = i * blocksize;
int blockEnd = blockOffset + blocksize;
if (blockEnd > uncompressedSize)
{
blockEnd = uncompressedSize;
}
var block = new ChunkBlock();
block.uncompressedDataSize = blockEnd - blockOffset;
block.uncompressedData = new byte[block.uncompressedDataSize];
Array.ConstrainedCopy(uncompressedData, blockOffset, block.uncompressedData, 0, block.uncompressedData.Length);
block.compress(compFlag);
compressedSize += block.compressedSize;
blocks.Add(block);
}
}
public void Decompress(byte[] uncompressedData, int blockCount, BinaryReader reader, int compFlag)
{
int blockOffset = 0;
for (int j = 0; j < blockCount; ++j)
{
var block = new ChunkBlock();
block.compressedSize = reader.ReadInt32();
block.uncompressedDataSize = reader.ReadInt32();
chunkBlocks.Add(block);
}
foreach (ChunkBlock block in chunkBlocks)
{
block.compressedData = reader.ReadBytes(block.compressedSize);
block.decompressPackageFlags(compFlag);
Array.ConstrainedCopy(block.uncompressedData, 0, uncompressedData, blockOffset, block.uncompressedDataSize);
blockOffset += block.uncompressedDataSize;
//save memory
block.uncompressedData = null;
}
}
public void ReadData(GpkPackage package, GpkExport export)
{
objectExport = export;
BinaryReader reader = new BinaryReader(new MemoryStream(export.Data));
IProperty formatProp = export.Properties.Find(t => ((GpkBaseProperty)t).name == "Format");
String format = ((GpkByteProperty)formatProp).nameValue;
startUnk = reader.ReadBytes(16);
int length = reader.ReadInt32();
if (length > 0)
{
tgaPath = Reader.ReadString(reader, length);
}
else
{
inUnicode = true;
tgaPath = Reader.ReadUnicodeString(reader, (length * -1) * 2);
}
int count = reader.ReadInt32();
for (int i = 0; i < count; i++)
{
MipMap map = new MipMap();
//chunk
//info
map.compFlag = reader.ReadInt32();
map.uncompressedSize = reader.ReadInt32();
map.compChunkSize = reader.ReadInt32();
map.compChunkOffset = reader.ReadInt32();
var temp = ((CompressionTypes)map.compFlag & NothingToDo);
if (((CompressionTypes)map.compFlag & NothingToDo) == 0)
{
//header
map.signature = reader.ReadUInt32(); //0x9e2a83c1
Debug.Assert(map.signature == MipMap.DEFAULT_SIGNATURE);
map.blocksize = reader.ReadInt32();
map.compressedSize = reader.ReadInt32();
map.uncompressedSize_chunkheader = reader.ReadInt32();
map.uncompressedData = new byte[map.uncompressedSize];
int blockCount = (map.uncompressedSize + map.blocksize - 1) / map.blocksize;
int blockOffset = 0;
for (int j = 0; j < blockCount; ++j)
{
var block = new ChunkBlock();
block.compressedSize = reader.ReadInt32();
block.uncompressedDataSize = reader.ReadInt32();
map.blocks.Add(block);
}
foreach (ChunkBlock block in map.blocks)
{
block.compressedData = reader.ReadBytes(block.compressedSize);
block.decompress(map.compFlag);
Array.ConstrainedCopy(block.uncompressedData, 0, map.uncompressedData, blockOffset, block.uncompressedDataSize);
blockOffset += block.uncompressedDataSize;
//save memory
block.uncompressedData = null;
}
}
else
{
logger.Trace("{0}, MipMap {0}, no data!!", export.ObjectName, i);
}
map.sizeX = reader.ReadInt32();
map.sizeY = reader.ReadInt32();
maps.Add(map);
}
guid = reader.ReadBytes(16);
}
