daily update on 20240419 by nitload youmu, SSD merged into main stream

2024-04-20 02:36:36 +08:00
parent efeb4ba058
commit 7b67eb2f4d
81 changed files with 4568 additions and 33 deletions
@@ -0,0 +1,122 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+
+namespace StgSharp.Data
+{
+    public static partial class Serializer
+    {
+        public static byte[] Serialize(BitArray bits)
+        {
+            int size = bits.Count/4 +1;
+            List<byte> ret = new List<byte>(size);
+            int count = 0, total = 0; byte temp = new byte();
+            for (int i = 0; i < bits.Count; i++) 
+            {
+                if (count == 4)
+                {
+                    ret.Add(temp);
+                    count = 0;
+                    temp = 0;
+                    total++;
+                }
+                switch (count)
+                {
+                    case 0:
+                        temp |= (byte)(bits[i] ? BoolMap.True_0 : BoolMap.False_0);
+                        break;
+                    case 1:
+                        temp |= (byte)(bits[i] ? BoolMap.True_1 : BoolMap.False_1);
+                        break;
+                    case 2:
+                        temp |= (byte)(bits[i] ? BoolMap.True_2 : BoolMap.False_2);
+                        break;
+                    case 3:
+                        temp |= (byte)(bits[i] ? BoolMap.True_3 : BoolMap.False_3);
+                        break;
+                    default:
+                        throw new Exception();
+                }
+                count++;
+            }
+            for (; count < 4; count++)
+            {
+                switch (count)
+                {
+                    case 1:
+                        temp |= (byte)(BoolMap.None_1);
+                        break;
+                    case 2:
+                        temp |= (byte)(BoolMap.None_2);
+                        break;
+                    case 3:
+                        temp |= (byte)(BoolMap.None_3);
+                        break;
+                    default:
+                        throw new Exception();
+                }
+                continue;
+            }
+            ret.Add( temp);
+            return ret.ToArray();
+        }
+
+        public static void Deserialize(byte[] stream, out BitArray target)
+        {
+            List<bool> boolStream = new List<bool>( 4 * stream.Length);
+            int i = 0, count = 0;
+            foreach (byte b in stream) 
+            {
+                uint raw = b;
+                for (i = 0; i < 4; i++)
+                {
+                    switch (raw & 0b11) 
+                    {
+                        case (uint)BoolMap.True_0:
+                            boolStream.Add(true);
+                            break;
+                        case (uint)BoolMap.False_0:
+                            boolStream.Add(false);
+                            break;
+                        case (uint)BoolMap.None_0:
+                            goto end;
+                        default:
+                            throw new Exception();
+                    }
+                    raw >>= 2;
+                    count++;
+                    continue;
+                    end:
+                    {
+                        break;
+                    }
+                }
+            }
+            while (boolStream.Count > count)
+            {
+                boolStream.RemoveAt(count);
+            }
+            target = new BitArray(boolStream.ToArray());
+        }
+    }
+
+
+    internal enum BoolMap : byte
+    {
+        False_0 =   0b00000010,
+        True_0 =    0b00000001,
+        None_0 =    0b00000011,
+        False_1 =   0b00001000,
+        True_1=     0b00000100,
+        None_1 =    0b00001100,
+        False_2 =   0b00100000,
+        True_2 =    0b00010000,
+        None_2 =    0b00110000,
+        False_3 =   0b10000000,
+        True_3 =    0b01000000,
+        None_3 =    0b11000000,
+    }
+}