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path: root/Ryujinx.Graphics.Texture/Astc/BitArrayStream.cs
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Diffstat (limited to 'Ryujinx.Graphics.Texture/Astc/BitArrayStream.cs')
-rw-r--r--Ryujinx.Graphics.Texture/Astc/BitArrayStream.cs121
1 files changed, 0 insertions, 121 deletions
diff --git a/Ryujinx.Graphics.Texture/Astc/BitArrayStream.cs b/Ryujinx.Graphics.Texture/Astc/BitArrayStream.cs
deleted file mode 100644
index 3c472a3c..00000000
--- a/Ryujinx.Graphics.Texture/Astc/BitArrayStream.cs
+++ /dev/null
@@ -1,121 +0,0 @@
-using System;
-using System.Collections;
-
-namespace Ryujinx.Graphics.Texture.Astc
-{
- public class BitArrayStream
- {
- public BitArray BitsArray;
-
- public int Position { get; private set; }
-
- public BitArrayStream(BitArray bitArray)
- {
- BitsArray = bitArray;
- Position = 0;
- }
-
- public short ReadBits(int length)
- {
- int retValue = 0;
- for (int i = Position; i < Position + length; i++)
- {
- if (BitsArray[i])
- {
- retValue |= 1 << (i - Position);
- }
- }
-
- Position += length;
- return (short)retValue;
- }
-
- public int ReadBits(int start, int end)
- {
- int retValue = 0;
- for (int i = start; i <= end; i++)
- {
- if (BitsArray[i])
- {
- retValue |= 1 << (i - start);
- }
- }
-
- return retValue;
- }
-
- public int ReadBit(int index)
- {
- return Convert.ToInt32(BitsArray[index]);
- }
-
- public void WriteBits(int value, int length)
- {
- for (int i = Position; i < Position + length; i++)
- {
- BitsArray[i] = ((value >> (i - Position)) & 1) != 0;
- }
-
- Position += length;
- }
-
- public byte[] ToByteArray()
- {
- byte[] retArray = new byte[(BitsArray.Length + 7) / 8];
- BitsArray.CopyTo(retArray, 0);
- return retArray;
- }
-
- public static int Replicate(int value, int numberBits, int toBit)
- {
- if (numberBits == 0) return 0;
- if (toBit == 0) return 0;
-
- int tempValue = value & ((1 << numberBits) - 1);
- int retValue = tempValue;
- int resLength = numberBits;
-
- while (resLength < toBit)
- {
- int comp = 0;
- if (numberBits > toBit - resLength)
- {
- int newShift = toBit - resLength;
- comp = numberBits - newShift;
- numberBits = newShift;
- }
- retValue <<= numberBits;
- retValue |= tempValue >> comp;
- resLength += numberBits;
- }
- return retValue;
- }
-
- public static int PopCnt(int number)
- {
- int counter;
- for (counter = 0; number != 0; counter++)
- {
- number &= number - 1;
- }
- return counter;
- }
-
- public static void Swap<T>(ref T lhs, ref T rhs)
- {
- T temp = lhs;
- lhs = rhs;
- rhs = temp;
- }
-
- // Transfers a bit as described in C.2.14
- public static void BitTransferSigned(ref int a, ref int b)
- {
- b >>= 1;
- b |= a & 0x80;
- a >>= 1;
- a &= 0x3F;
- if ((a & 0x20) != 0) a -= 0x40;
- }
- }
-}