/// <summary>
/// Reads an encoded value from a <see cref="BitReader"/>.
/// </summary>
public int Read(BitReader reader)
{
var u = Codes.UnaryZeros.Read(reader) - 1;
var len = (int)((reader.Read(u) | (1ul << u)) - 1);
return((int)(reader.Read(len) | (1ul << len)));
}
/// <summary>
/// Reads an encoded value from a <see cref="BitReader"/>.
/// </summary>
public int Read(BitReader reader)
{
int value = (int)reader.Read(bits - 1);
if (value < extra)
{
return(value);
}
return(value * 2 + (int)reader.Read(1) - extra);
}
/// <summary>
/// Gets the value corresponding to a code.
/// </summary>
public int Read(BitReader reader)
{
int value = 1;
while (reader.Read(1) != 0)
{
value = (int)(reader.Read(value) | (1UL << value));
}
return(value);
}
/// <summary>
/// Reads an encoded value from a <see cref="BitReader"/>.
/// </summary>
public int Read(BitReader reader)
{
int f = Codes.Fibonacci.Read(reader) - 1;
int value = (int)reader.Read(f);
return(value | (1 << f));
}
/// <summary>
/// Gets the value corresponding to a Fibonacci code.
/// </summary>
public int Read(BitReader reader)
{
int value = 0;
int f = 0;
bool bit = false;
while (true)
{
if (reader.Read(1) == 0)
{
bit = false;
}
else if (bit)
{
break;
}
else
{
bit = true;
value += fib[f];
}
f++;
}
return(value);
}
public void BitStreamTest()
{
var g = new Generator("BitStreamTest");
var codes = new List <Code>();
for (int i = 0; i < 10000; i++)
{
var bits = g.UInt64();
var length = g.Int32(65);
bits >>= 64 - length;
var code = new Code(bits, length);
codes.Add(code);
}
var writer = new BitWriter(1000);
foreach (var code in codes)
{
writer.Write(code);
}
var buffer = writer.ToArray();
var reader = new BitReader(buffer);
foreach (var code in codes)
{
ulong bits = reader.Read(code.Length);
Assert.AreEqual(code.Bits, bits);
}
}
/// <summary>
/// Reads an encoded value from a <see cref="BitReader"/>.
/// </summary>
public int Read(BitReader reader)
{
int value = 1;
while ((int)reader.Read(1) == tally)
{
value++;
}
return(value);
}
/// <summary>
/// Gets the value corresponding to a code.
/// </summary>
public int Read(BitReader reader)
{
int value = 0;
int power = 1;
while (true)
{
bool done = reader.Read(1) == 0;
value += power * encoding.Read(reader);
if (done)
{
return(value);
}
power *= n;
}
}
/// <summary>
/// Reads an encoded value from a <see cref="BitReader"/>.
/// </summary>
public int Read(BitReader reader)
{
int u = Codes.UnaryOnes.Read(reader) - 1;
if (u == 0)
{
return(0);
}
int value = 1;
while (--u > 0)
{
value = (int)reader.Read(value) | (1 << value);
}
return(value);
}
/// <summary>
/// Reads an encoded value from a <see cref="BitReader"/>.
/// </summary>
public int Read(BitReader reader)
{
var u = Codes.UnaryZeros.Read(reader) - 1;
return((int)reader.Read(u) | (1 << u));
}
/// <summary>
/// Gets the value corresponding to a code.
/// </summary>
public int Read(BitReader reader)
{
return((int)reader.Read(bitCount));
}
/// <summary>
/// Reads an encoded value from a <see cref="BitReader"/>.
/// </summary>
public int Read(BitReader reader)
{
int u = Codes.UnaryOnes.Read(reader) - 1;
return((int)reader.Read(exponentOf2) + (u << exponentOf2));
}