Namespace TizzyT
Public Class BitList
Private Bits As List(Of Byte)
Private ByteValue As Byte = 0
Private Pos As Byte = 0
Private Shared ReadOnly Table(,) As Boolean =
{{0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 1}, {0, 0, 0, 0, 0, 0, 1, 0}, {0, 0, 0, 0, 0, 0, 1, 1},
{0, 0, 0, 0, 0, 1, 0, 0}, {0, 0, 0, 0, 0, 1, 0, 1}, {0, 0, 0, 0, 0, 1, 1, 0}, {0, 0, 0, 0, 0, 1, 1, 1},
{0, 0, 0, 0, 1, 0, 0, 0}, {0, 0, 0, 0, 1, 0, 0, 1}, {0, 0, 0, 0, 1, 0, 1, 0}, {0, 0, 0, 0, 1, 0, 1, 1},
{0, 0, 0, 0, 1, 1, 0, 0}, {0, 0, 0, 0, 1, 1, 0, 1}, {0, 0, 0, 0, 1, 1, 1, 0}, {0, 0, 0, 0, 1, 1, 1, 1},
{0, 0, 0, 1, 0, 0, 0, 0}, {0, 0, 0, 1, 0, 0, 0, 1}, {0, 0, 0, 1, 0, 0, 1, 0}, {0, 0, 0, 1, 0, 0, 1, 1},
{0, 0, 0, 1, 0, 1, 0, 0}, {0, 0, 0, 1, 0, 1, 0, 1}, {0, 0, 0, 1, 0, 1, 1, 0}, {0, 0, 0, 1, 0, 1, 1, 1},
{0, 0, 0, 1, 1, 0, 0, 0}, {0, 0, 0, 1, 1, 0, 0, 1}, {0, 0, 0, 1, 1, 0, 1, 0}, {0, 0, 0, 1, 1, 0, 1, 1},
{0, 0, 0, 1, 1, 1, 0, 0}, {0, 0, 0, 1, 1, 1, 0, 1}, {0, 0, 0, 1, 1, 1, 1, 0}, {0, 0, 0, 1, 1, 1, 1, 1},
{0, 0, 1, 0, 0, 0, 0, 0}, {0, 0, 1, 0, 0, 0, 0, 1}, {0, 0, 1, 0, 0, 0, 1, 0}, {0, 0, 1, 0, 0, 0, 1, 1},
{0, 0, 1, 0, 0, 1, 0, 0}, {0, 0, 1, 0, 0, 1, 0, 1}, {0, 0, 1, 0, 0, 1, 1, 0}, {0, 0, 1, 0, 0, 1, 1, 1},
{0, 0, 1, 0, 1, 0, 0, 0}, {0, 0, 1, 0, 1, 0, 0, 1}, {0, 0, 1, 0, 1, 0, 1, 0}, {0, 0, 1, 0, 1, 0, 1, 1},
{0, 0, 1, 0, 1, 1, 0, 0}, {0, 0, 1, 0, 1, 1, 0, 1}, {0, 0, 1, 0, 1, 1, 1, 0}, {0, 0, 1, 0, 1, 1, 1, 1},
{0, 0, 1, 1, 0, 0, 0, 0}, {0, 0, 1, 1, 0, 0, 0, 1}, {0, 0, 1, 1, 0, 0, 1, 0}, {0, 0, 1, 1, 0, 0, 1, 1},
{0, 0, 1, 1, 0, 1, 0, 0}, {0, 0, 1, 1, 0, 1, 0, 1}, {0, 0, 1, 1, 0, 1, 1, 0}, {0, 0, 1, 1, 0, 1, 1, 1},
{0, 0, 1, 1, 1, 0, 0, 0}, {0, 0, 1, 1, 1, 0, 0, 1}, {0, 0, 1, 1, 1, 0, 1, 0}, {0, 0, 1, 1, 1, 0, 1, 1},
{0, 0, 1, 1, 1, 1, 0, 0}, {0, 0, 1, 1, 1, 1, 0, 1}, {0, 0, 1, 1, 1, 1, 1, 0}, {0, 0, 1, 1, 1, 1, 1, 1},
{0, 1, 0, 0, 0, 0, 0, 0}, {0, 1, 0, 0, 0, 0, 0, 1}, {0, 1, 0, 0, 0, 0, 1, 0}, {0, 1, 0, 0, 0, 0, 1, 1},
{0, 1, 0, 0, 0, 1, 0, 0}, {0, 1, 0, 0, 0, 1, 0, 1}, {0, 1, 0, 0, 0, 1, 1, 0}, {0, 1, 0, 0, 0, 1, 1, 1},
{0, 1, 0, 0, 1, 0, 0, 0}, {0, 1, 0, 0, 1, 0, 0, 1}, {0, 1, 0, 0, 1, 0, 1, 0}, {0, 1, 0, 0, 1, 0, 1, 1},
{0, 1, 0, 0, 1, 1, 0, 0}, {0, 1, 0, 0, 1, 1, 0, 1}, {0, 1, 0, 0, 1, 1, 1, 0}, {0, 1, 0, 0, 1, 1, 1, 1},
{0, 1, 0, 1, 0, 0, 0, 0}, {0, 1, 0, 1, 0, 0, 0, 1}, {0, 1, 0, 1, 0, 0, 1, 0}, {0, 1, 0, 1, 0, 0, 1, 1},
{0, 1, 0, 1, 0, 1, 0, 0}, {0, 1, 0, 1, 0, 1, 0, 1}, {0, 1, 0, 1, 0, 1, 1, 0}, {0, 1, 0, 1, 0, 1, 1, 1},
{0, 1, 0, 1, 1, 0, 0, 0}, {0, 1, 0, 1, 1, 0, 0, 1}, {0, 1, 0, 1, 1, 0, 1, 0}, {0, 1, 0, 1, 1, 0, 1, 1},
{0, 1, 0, 1, 1, 1, 0, 0}, {0, 1, 0, 1, 1, 1, 0, 1}, {0, 1, 0, 1, 1, 1, 1, 0}, {0, 1, 0, 1, 1, 1, 1, 1},
{0, 1, 1, 0, 0, 0, 0, 0}, {0, 1, 1, 0, 0, 0, 0, 1}, {0, 1, 1, 0, 0, 0, 1, 0}, {0, 1, 1, 0, 0, 0, 1, 1},
{0, 1, 1, 0, 0, 1, 0, 0}, {0, 1, 1, 0, 0, 1, 0, 1}, {0, 1, 1, 0, 0, 1, 1, 0}, {0, 1, 1, 0, 0, 1, 1, 1},
{0, 1, 1, 0, 1, 0, 0, 0}, {0, 1, 1, 0, 1, 0, 0, 1}, {0, 1, 1, 0, 1, 0, 1, 0}, {0, 1, 1, 0, 1, 0, 1, 1},
{0, 1, 1, 0, 1, 1, 0, 0}, {0, 1, 1, 0, 1, 1, 0, 1}, {0, 1, 1, 0, 1, 1, 1, 0}, {0, 1, 1, 0, 1, 1, 1, 1},
{0, 1, 1, 1, 0, 0, 0, 0}, {0, 1, 1, 1, 0, 0, 0, 1}, {0, 1, 1, 1, 0, 0, 1, 0}, {0, 1, 1, 1, 0, 0, 1, 1},
{0, 1, 1, 1, 0, 1, 0, 0}, {0, 1, 1, 1, 0, 1, 0, 1}, {0, 1, 1, 1, 0, 1, 1, 0}, {0, 1, 1, 1, 0, 1, 1, 1},
{0, 1, 1, 1, 1, 0, 0, 0}, {0, 1, 1, 1, 1, 0, 0, 1}, {0, 1, 1, 1, 1, 0, 1, 0}, {0, 1, 1, 1, 1, 0, 1, 1},
{0, 1, 1, 1, 1, 1, 0, 0}, {0, 1, 1, 1, 1, 1, 0, 1}, {0, 1, 1, 1, 1, 1, 1, 0}, {0, 1, 1, 1, 1, 1, 1, 1},
{1, 0, 0, 0, 0, 0, 0, 0}, {1, 0, 0, 0, 0, 0, 0, 1}, {1, 0, 0, 0, 0, 0, 1, 0}, {1, 0, 0, 0, 0, 0, 1, 1},
{1, 0, 0, 0, 0, 1, 0, 0}, {1, 0, 0, 0, 0, 1, 0, 1}, {1, 0, 0, 0, 0, 1, 1, 0}, {1, 0, 0, 0, 0, 1, 1, 1},
{1, 0, 0, 0, 1, 0, 0, 0}, {1, 0, 0, 0, 1, 0, 0, 1}, {1, 0, 0, 0, 1, 0, 1, 0}, {1, 0, 0, 0, 1, 0, 1, 1},
{1, 0, 0, 0, 1, 1, 0, 0}, {1, 0, 0, 0, 1, 1, 0, 1}, {1, 0, 0, 0, 1, 1, 1, 0}, {1, 0, 0, 0, 1, 1, 1, 1},
{1, 0, 0, 1, 0, 0, 0, 0}, {1, 0, 0, 1, 0, 0, 0, 1}, {1, 0, 0, 1, 0, 0, 1, 0}, {1, 0, 0, 1, 0, 0, 1, 1},
{1, 0, 0, 1, 0, 1, 0, 0}, {1, 0, 0, 1, 0, 1, 0, 1}, {1, 0, 0, 1, 0, 1, 1, 0}, {1, 0, 0, 1, 0, 1, 1, 1},
{1, 0, 0, 1, 1, 0, 0, 0}, {1, 0, 0, 1, 1, 0, 0, 1}, {1, 0, 0, 1, 1, 0, 1, 0}, {1, 0, 0, 1, 1, 0, 1, 1},
{1, 0, 0, 1, 1, 1, 0, 0}, {1, 0, 0, 1, 1, 1, 0, 1}, {1, 0, 0, 1, 1, 1, 1, 0}, {1, 0, 0, 1, 1, 1, 1, 1},
{1, 0, 1, 0, 0, 0, 0, 0}, {1, 0, 1, 0, 0, 0, 0, 1}, {1, 0, 1, 0, 0, 0, 1, 0}, {1, 0, 1, 0, 0, 0, 1, 1},
{1, 0, 1, 0, 0, 1, 0, 0}, {1, 0, 1, 0, 0, 1, 0, 1}, {1, 0, 1, 0, 0, 1, 1, 0}, {1, 0, 1, 0, 0, 1, 1, 1},
{1, 0, 1, 0, 1, 0, 0, 0}, {1, 0, 1, 0, 1, 0, 0, 1}, {1, 0, 1, 0, 1, 0, 1, 0}, {1, 0, 1, 0, 1, 0, 1, 1},
{1, 0, 1, 0, 1, 1, 0, 0}, {1, 0, 1, 0, 1, 1, 0, 1}, {1, 0, 1, 0, 1, 1, 1, 0}, {1, 0, 1, 0, 1, 1, 1, 1},
{1, 0, 1, 1, 0, 0, 0, 0}, {1, 0, 1, 1, 0, 0, 0, 1}, {1, 0, 1, 1, 0, 0, 1, 0}, {1, 0, 1, 1, 0, 0, 1, 1},
{1, 0, 1, 1, 0, 1, 0, 0}, {1, 0, 1, 1, 0, 1, 0, 1}, {1, 0, 1, 1, 0, 1, 1, 0}, {1, 0, 1, 1, 0, 1, 1, 1},
{1, 0, 1, 1, 1, 0, 0, 0}, {1, 0, 1, 1, 1, 0, 0, 1}, {1, 0, 1, 1, 1, 0, 1, 0}, {1, 0, 1, 1, 1, 0, 1, 1},
{1, 0, 1, 1, 1, 1, 0, 0}, {1, 0, 1, 1, 1, 1, 0, 1}, {1, 0, 1, 1, 1, 1, 1, 0}, {1, 0, 1, 1, 1, 1, 1, 1},
{1, 1, 0, 0, 0, 0, 0, 0}, {1, 1, 0, 0, 0, 0, 0, 1}, {1, 1, 0, 0, 0, 0, 1, 0}, {1, 1, 0, 0, 0, 0, 1, 1},
{1, 1, 0, 0, 0, 1, 0, 0}, {1, 1, 0, 0, 0, 1, 0, 1}, {1, 1, 0, 0, 0, 1, 1, 0}, {1, 1, 0, 0, 0, 1, 1, 1},
{1, 1, 0, 0, 1, 0, 0, 0}, {1, 1, 0, 0, 1, 0, 0, 1}, {1, 1, 0, 0, 1, 0, 1, 0}, {1, 1, 0, 0, 1, 0, 1, 1},
{1, 1, 0, 0, 1, 1, 0, 0}, {1, 1, 0, 0, 1, 1, 0, 1}, {1, 1, 0, 0, 1, 1, 1, 0}, {1, 1, 0, 0, 1, 1, 1, 1},
{1, 1, 0, 1, 0, 0, 0, 0}, {1, 1, 0, 1, 0, 0, 0, 1}, {1, 1, 0, 1, 0, 0, 1, 0}, {1, 1, 0, 1, 0, 0, 1, 1},
{1, 1, 0, 1, 0, 1, 0, 0}, {1, 1, 0, 1, 0, 1, 0, 1}, {1, 1, 0, 1, 0, 1, 1, 0}, {1, 1, 0, 1, 0, 1, 1, 1},
{1, 1, 0, 1, 1, 0, 0, 0}, {1, 1, 0, 1, 1, 0, 0, 1}, {1, 1, 0, 1, 1, 0, 1, 0}, {1, 1, 0, 1, 1, 0, 1, 1},
{1, 1, 0, 1, 1, 1, 0, 0}, {1, 1, 0, 1, 1, 1, 0, 1}, {1, 1, 0, 1, 1, 1, 1, 0}, {1, 1, 0, 1, 1, 1, 1, 1},
{1, 1, 1, 0, 0, 0, 0, 0}, {1, 1, 1, 0, 0, 0, 0, 1}, {1, 1, 1, 0, 0, 0, 1, 0}, {1, 1, 1, 0, 0, 0, 1, 1},
{1, 1, 1, 0, 0, 1, 0, 0}, {1, 1, 1, 0, 0, 1, 0, 1}, {1, 1, 1, 0, 0, 1, 1, 0}, {1, 1, 1, 0, 0, 1, 1, 1},
{1, 1, 1, 0, 1, 0, 0, 0}, {1, 1, 1, 0, 1, 0, 0, 1}, {1, 1, 1, 0, 1, 0, 1, 0}, {1, 1, 1, 0, 1, 0, 1, 1},
{1, 1, 1, 0, 1, 1, 0, 0}, {1, 1, 1, 0, 1, 1, 0, 1}, {1, 1, 1, 0, 1, 1, 1, 0}, {1, 1, 1, 0, 1, 1, 1, 1},
{1, 1, 1, 1, 0, 0, 0, 0}, {1, 1, 1, 1, 0, 0, 0, 1}, {1, 1, 1, 1, 0, 0, 1, 0}, {1, 1, 1, 1, 0, 0, 1, 1},
{1, 1, 1, 1, 0, 1, 0, 0}, {1, 1, 1, 1, 0, 1, 0, 1}, {1, 1, 1, 1, 0, 1, 1, 0}, {1, 1, 1, 1, 0, 1, 1, 1},
{1, 1, 1, 1, 1, 0, 0, 0}, {1, 1, 1, 1, 1, 0, 0, 1}, {1, 1, 1, 1, 1, 0, 1, 0}, {1, 1, 1, 1, 1, 0, 1, 1},
{1, 1, 1, 1, 1, 1, 0, 0}, {1, 1, 1, 1, 1, 1, 0, 1}, {1, 1, 1, 1, 1, 1, 1, 0}, {1, 1, 1, 1, 1, 1, 1, 1}}
Private Shared ReadOnly ReverseByteBits() As Byte =
{0, 128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208, 48, 176, 112, 240,
8, 136, 72, 200, 40, 168, 104, 232, 24, 152, 88, 216, 56, 184, 120, 248,
4, 132, 68, 196, 36, 164, 100, 228, 20, 148, 84, 212, 52, 180, 116, 244,
12, 140, 76, 204, 44, 172, 108, 236, 28, 156, 92, 220, 60, 188, 124, 252,
2, 130, 66, 194, 34, 162, 98, 226, 18, 146, 82, 210, 50, 178, 114, 242,
10, 138, 74, 202, 42, 170, 106, 234, 26, 154, 90, 218, 58, 186, 122, 250,
6, 134, 70, 198, 38, 166, 102, 230, 22, 150, 86, 214, 54, 182, 118, 246,
14, 142, 78, 206, 46, 174, 110, 238, 30, 158, 94, 222, 62, 190, 126, 254,
1, 129, 65, 193, 33, 161, 97, 225, 17, 145, 81, 209, 49, 177, 113, 241,
9, 137, 73, 201, 41, 169, 105, 233, 25, 153, 89, 217, 57, 185, 121, 249,
5, 133, 69, 197, 37, 165, 101, 229, 21, 149, 85, 213, 53, 181, 117, 245,
13, 141, 77, 205, 45, 173, 109, 237, 29, 157, 93, 221, 61, 189, 125, 253,
3, 131, 67, 195, 35, 163, 99, 227, 19, 147, 83, 211, 51, 179, 115, 243,
11, 139, 75, 203, 43, 171, 107, 235, 27, 155, 91, 219, 59, 187, 123, 251,
7, 135, 71, 199, 39, 167, 103, 231, 23, 151, 87, 215, 55, 183, 119, 247,
15, 143, 79, 207, 47, 175, 111, 239, 31, 159, 95, 223, 63, 191, 127, 255}
Default Public Property Bit(ByVal Index As Integer) As Boolean
Get
If Index > Count() - 1 OrElse Index < 0 Then Throw New IndexOutOfRangeException()
Dim posMain As Integer = (Index / 8) - 0.4
Dim bitIn As Integer = Index Mod 8
If posMain = Bits.Count Then Return Table(ByteValue, bitIn)
Return Table(Bits(posMain), bitIn)
End Get
Set(value As Boolean)
If Index > Count() - 1 Then Throw New IndexOutOfRangeException()
Dim posMain As Integer = (Index / 8) - 0.4
Dim bitIn As Integer = Index Mod 8
If posMain = Bits.Count Then
If Not value = Table(ByteValue, bitIn) Then
Select Case bitIn
Case 0 : ByteValue = ByteValue Xor 128
Case 1 : ByteValue = ByteValue Xor 64
Case 2 : ByteValue = ByteValue Xor 32
Case 3 : ByteValue = ByteValue Xor 16
Case 4 : ByteValue = ByteValue Xor 8
Case 5 : ByteValue = ByteValue Xor 4
Case 6 : ByteValue = ByteValue Xor 2
Case 7 : ByteValue = ByteValue Xor 1
End Select
End If
Else
Dim B As Integer = Bits(posMain)
If Not value = Table(B, bitIn) Then
Select Case bitIn
Case 0 : Bits(posMain) = B Xor 128
Case 1 : Bits(posMain) = B Xor 64
Case 2 : Bits(posMain) = B Xor 32
Case 3 : Bits(posMain) = B Xor 16
Case 4 : Bits(posMain) = B Xor 8
Case 5 : Bits(posMain) = B Xor 4
Case 6 : Bits(posMain) = B Xor 2
Case 7 : Bits(posMain) = B Xor 1
End Select
End If
End If
End Set
End Property
Public Sub New()
Bits = New List(Of Byte)
End Sub
Public Sub New(ByVal Length As Integer)
Bits = New List(Of Byte)(New Byte(CInt(Length / 8) - 1.4) {})
Pos = Length Mod 8
End Sub
Public Sub New(ByVal Bytes() As Byte)
Bits = Bytes.ToList
End Sub
Public Sub Add(ByVal Bit As Boolean)
If Bit Then
Select Case Pos
Case 0 : ByteValue = ByteValue Xor 128 : Pos += 1
Case 1 : ByteValue = ByteValue Xor 64 : Pos += 1
Case 2 : ByteValue = ByteValue Xor 32 : Pos += 1
Case 3 : ByteValue = ByteValue Xor 16 : Pos += 1
Case 4 : ByteValue = ByteValue Xor 8 : Pos += 1
Case 5 : ByteValue = ByteValue Xor 4 : Pos += 1
Case 6 : ByteValue = ByteValue Xor 2 : Pos += 1
Case 7
ByteValue = ByteValue Xor 1
Bits.Add(ByteValue)
ByteValue = 0
Pos = 0
End Select
Else
If Pos = 7 Then
Bits.Add(ByteValue)
ByteValue = 0
Pos = 0
Else
Pos += 1
End If
End If
End Sub
Public Function Count() As Integer
Return (Bits.Count * 8) + Pos
End Function
Public Sub Clear()
Bits.Clear()
ByteValue = 0
Pos = 0
End Sub
Public Function ToBytes() As Byte()
If Pos = 0 Then
Return Bits.ToArray
Else
Dim temp As New List(Of Byte)(Bits)
temp.Add(ByteValue)
Return temp.ToArray
End If
End Function
Public Function ToArray() As BitArray
Dim newBytes() As Byte = Bits.ToArray
For i = 0 To newBytes.Length - 1
newBytes(i) = ReverseByteBits(newBytes(i))
Next
Dim newBitArray As New BitArray(newBytes)
Erase newBytes
If Pos > 0 Then
newBitArray.Length += Pos
For i = Bits.Count * 8 To Count() - 1
newBitArray(i) = Bit(i)
Next
End If
Return newBitArray
End Function
End Class
End Namespace