void DecodeBin(Entry ent, ref byte[] res, ref int res_len)
{
if (ent.format == ModuleBinaryFormat.FMT_BIN)
{
var tmp_buf = TempBuffer.Get();
int tmp_buf_len = 0;
reader.SetPos(ent.stream_pos);
reader.ReadRaw(ref tmp_buf, ref tmp_buf_len);
TempBuffer.Update(tmp_buf);
res = tmp_buf;
res_len = tmp_buf_len;
}
else if (ent.format == ModuleBinaryFormat.FMT_LZ4)
{
var lz_buf = TempBuffer.Get();
int lz_buf_len = 0;
reader.SetPos(ent.stream_pos);
reader.ReadRaw(ref lz_buf, ref lz_buf_len);
TempBuffer.Update(lz_buf);
var dst_buf = TempBuffer.Get();
var lz_size = (int)BitConverter.ToUInt32(lz_buf, 0);
if (lz_size > dst_buf.Length)
{
Array.Resize(ref dst_buf, lz_size);
}
TempBuffer.Update(dst_buf);
lz_dst_stream.SetData(dst_buf, 0, dst_buf.Length);
//NOTE: uncompressed size is only added by PHP implementation
//taking into account first 4 bytes which store uncompressed size
//lz_stream.SetData(lz_buf, 4, lz_buf_len-4);
lz_stream.SetData(lz_buf, 0, lz_buf_len);
decoder.Reset(lz_stream);
decoder.CopyTo(lz_dst_stream);
res = lz_dst_stream.GetBuffer();
res_len = (int)lz_dst_stream.Position;
}
else if (ent.format == ModuleBinaryFormat.FMT_FILE_REF)
{
var tmp_buf = TempBuffer.Get();
int tmp_buf_len = 0;
reader.SetPos(ent.stream_pos);
reader.ReadRaw(ref tmp_buf, ref tmp_buf_len);
TempBuffer.Update(tmp_buf);
string file_path = System.Text.Encoding.UTF8.GetString(tmp_buf, 0, tmp_buf_len);
var file_bytes = File.ReadAllBytes(file_path);
res = file_bytes;
res_len = file_bytes.Length;
}
else
{
throw new Exception("Unknown format: " + ent.format);
}
}
void Init(Stream source_)
{
name2entry.Clear();
source = source_;
source.Position = 0;
reader = new marshall.MsgPackDataReader(source);
byte file_format = 0;
reader.ReadU8(ref file_format);
Util.Verify(file_format == COMPILE_FMT);
uint file_version = 0;
reader.ReadU32(ref file_version);
Util.Verify(file_version == 1);
int num_entries = 0;
reader.ReadI32(ref num_entries);
//Util.Debug("Total modules: " + total_modules);
while (num_entries-- > 0)
{
int format = 0;
reader.ReadI32(ref format);
string name = "";
reader.ReadString(ref name);
var ent = new Entry();
ent.format = (ModuleBinaryFormat)format;
ent.stream_pos = source.Position;
if (name2entry.ContainsKey(name))
{
Util.Verify(false, "Key already exists: " + name);
}
name2entry.Add(name, ent);
//skipping binary blob
var tmp_buf = TempBuffer.Get();
int tmp_buf_len = 0;
reader.ReadRaw(ref tmp_buf, ref tmp_buf_len);
TempBuffer.Update(tmp_buf);
}
}