public static byte[] Pack(byte[] data, int len = 0)
{
SprotoStream packed = new SprotoStream();
int idx = 0;
int i = 0;
len = len == 0 ? data.Length : len;
while (idx < len)
{
byte mapz = 0;
SprotoStream group = new SprotoStream(GROUP_SZ);
for (i = 0; i < GROUP_SZ && idx < len; ++i)
{
if (data[idx] != 0)
{
mapz |= (byte)((1 << i) & 0xff);
group.Write(data, idx, 1);
}
++idx;
}
packed.WriteByte(mapz);
packed.Write(group.Buffer, 0, group.Position);
}
// If it is an unsaturated group, then fill a byte of padding.
if (i < GROUP_SZ)
{
byte padding = (byte)(GROUP_SZ - i);
packed.WriteByte(padding);
}
return(packed.Buffer.Take <byte>(packed.Position).ToArray());
}
private void WriteUInt32(SprotoStream writer, UInt32 v)
{
//Console.WriteLine("WriteUInt32: {0}",v);
writer.WriteByte((byte)(v & 0xff));
writer.WriteByte((byte)((v >> 8) & 0xff));
writer.WriteByte((byte)((v >> 16) & 0xff));
writer.WriteByte((byte)((v >> 24) & 0xff));
}
private UInt32 EncodeIntegerList(List <Int64> integer_list, SprotoStream writer)
{
UInt32 sizeof_uint32 = sizeof(UInt32);
UInt32 sizeof_uint64 = sizeof(UInt64);
UInt32 elem_size = sizeof_uint32;
foreach (var integer in integer_list)
{
if (this.RealSizeOfInteger(integer) == sizeof_uint64)
{
elem_size = sizeof_uint64;
break;
}
}
UInt32 size = 1;
writer.WriteByte(Convert.ToByte(elem_size));
foreach (var integer in integer_list)
{
if (elem_size == sizeof_uint64)
{
UInt64 number = (UInt64)integer;
this.WriteUInt64(writer, number);
}
else
{
UInt32 number = (UInt32)integer;
this.WriteUInt32(writer, number);
}
size += elem_size;
}
return(size);
}
private UInt32 EncodeBoolean(bool ok, SprotoStream writer)
{
Int64 integer = (ok)?(1):(0);
writer.WriteByte(Convert.ToByte(integer));
return(1);
}
private void WriteUInt64(SprotoStream writer, UInt64 v)
{
//Console.WriteLine("WriteUInt64: {0}",v);
writer.WriteByte((byte)(v & 0xff));
writer.WriteByte((byte)((v >> 8) & 0xff));
writer.WriteByte((byte)((v >> 16) & 0xff));
writer.WriteByte((byte)((v >> 24) & 0xff));
writer.WriteByte((byte)((v >> 32) & 0xff));
writer.WriteByte((byte)((v >> 40) & 0xff));
writer.WriteByte((byte)((v >> 48) & 0xff));
writer.WriteByte((byte)((v >> 56) & 0xff));
}
private UInt32 EncodeBooleanList(List <bool> boolean_list, SprotoStream writer)
{
UInt32 size = (UInt32)boolean_list.Count;
foreach (var boolean in boolean_list)
{
int integer = boolean ? 1 : 0;
writer.WriteByte(Convert.ToByte(integer));
}
return(size);
}
