private void PrepareInflater()
{
if (inf == null)
{
inf = InflaterCache.Get();
}
else
{
inf.Reset();
}
}
public static void Trim(IntPtr hwnd, string In, string Out, ReportProgressDelegate del)
{
NativeMethods.ddsInit(hwnd);
BinaryReader br=new BinaryReader(File.OpenRead(In), System.Text.Encoding.Default);
BinaryWriter bw=new BinaryWriter(File.Create(Out), System.Text.Encoding.Default);
System.Text.StringBuilder sb=new System.Text.StringBuilder(64);
ICSharpCode.SharpZipLib.Zip.Compression.Inflater inf=new ICSharpCode.SharpZipLib.Zip.Compression.Inflater();
bool Compressed, SkipName;
if(br.ReadInt32()!=0x00415342) throw new Exception("Invalid bsa");
uint version=br.ReadUInt32();
bw.Write((int)0x00415342);
bw.Write(version);
bw.Write(br.ReadInt32());
uint flags=br.ReadUInt32();
if((flags&0x004)>0) { Compressed=true; flags^=0x4; } else Compressed=false;
if((flags&0x100)>0&&version==0x68) SkipName=true; else SkipName=false;
flags^=0x2;
int FolderCount=br.ReadInt32();
int FileCount=br.ReadInt32();
bw.Write(flags);
bw.Write(FolderCount);
bw.Write(FileCount);
bw.Write(br.ReadInt32());
bw.Write(br.ReadInt32());
bw.Write(br.ReadInt32());
int[] folderFileCount=new int[FolderCount];
for(int i=0;i<FolderCount;i++) {
bw.Write(br.ReadInt64());
folderFileCount[i]=br.ReadInt32();
bw.Write(folderFileCount[i]);
bw.Write(br.ReadInt32());
}
int[] fileLengths=new int[FileCount];
long[] offsetOffsets=new long[FileCount];
uint[] fileOffsets=new uint[FileCount];
bool[] parsefiles=new bool[FileCount];
int file=0;
for(int i=0;i<FolderCount;i++) {
byte len=br.ReadByte();
bw.Write(len);
sb.Length=0;
while(--len>0) {
char c=br.ReadChar();
sb.Append(c);
bw.Write(c);
}
br.ReadByte();
bw.Write((byte)0);
bool parse=true;
if(sb.ToString().StartsWith("textures\\interface\\")) parse=false;
for(int j=0;j<folderFileCount[i];j++) {
bw.Write(br.ReadUInt64());
offsetOffsets[file]=br.BaseStream.Position;
fileLengths[file]=br.ReadInt32();
bw.Write(fileLengths[file]);
fileOffsets[file]=br.ReadUInt32();
bw.Write(fileOffsets[file]);
parsefiles[file]=parse;
file++;
}
}
for(int i=0;i<FileCount;i++) {
sb.Length=0;
while(true) {
char c=(char)br.ReadByte();
//bw.Write(c);
if(c=='\0') break;
sb.Append(c);
}
if(!sb.ToString().EndsWith(".dds", StringComparison.OrdinalIgnoreCase)) parsefiles[i]=false;
}
int count=0;
for(int i=0;i<FileCount;i++) {
if((i%100)==0) del("Processing file "+i+" of "+FileCount);
br.BaseStream.Position=fileOffsets[i];
long offset=bw.BaseStream.Position;
int add=0;
if(SkipName) {
byte len=br.ReadByte();
bw.Write(len);
bw.Write(br.ReadBytes(len+1));
add=len+2;
}
bool compressed2=Compressed;
if((fileLengths[i]&(1<<30))!=0) {
compressed2=!compressed2;
fileLengths[i]^=(1<<30);
}
if(!compressed2) {
byte[] bytes=new byte[fileLengths[i]];
br.Read(bytes, 0, fileLengths[i]);
Commit(bw, offsetOffsets[i], bytes, offset, add, parsefiles[i]);
} else {
count++;
byte[] uncompressed=new byte[br.ReadUInt32()];
byte[] compressed=new byte[fileLengths[i]-4];
br.Read(compressed, 0, fileLengths[i]-4);
inf.Reset();
inf.SetInput(compressed);
inf.Inflate(uncompressed);
Commit(bw, offsetOffsets[i], uncompressed, offset, add, parsefiles[i]);
}
}
br.Close();
bw.Close();
NativeMethods.ddsClose();
}