Project: Move WPinternals code to a WPinternals folder

2026-06-21 14:41:03 +10:00 · 2021-08-14 11:04:37 +02:00
parent 668a9b7fe2
commit 17bc763761
203 changed files with 48170 additions and 48170 deletions
@@ -1,64 +0,0 @@
-// Common/CRC.cs
-
-namespace SevenZip
-{
-    internal class CRC
-    {
-        public static readonly uint[] Table;
-
-        static CRC()
-        {
-            Table = new uint[256];
-            const uint kPoly = 0xEDB88320;
-            for (uint i = 0; i < 256; i++)
-            {
-                uint r = i;
-                for (int j = 0; j < 8; j++)
-                {
-                    if ((r & 1) != 0)
-                    {
-                        r = (r >> 1) ^ kPoly;
-                    }
-                    else
-                    {
-                        r >>= 1;
-                    }
-                }
-
-                Table[i] = r;
-            }
-        }
-
-        private uint _value = 0xFFFFFFFF;
-
-        public void Init() { _value = 0xFFFFFFFF; }
-
-        public void UpdateByte(byte b)
-        {
-            _value = Table[((byte)_value) ^ b] ^ (_value >> 8);
-        }
-
-        public void Update(byte[] data, uint offset, uint size)
-        {
-            for (uint i = 0; i < size; i++)
-            {
-                _value = Table[((byte)_value) ^ data[offset + i]] ^ (_value >> 8);
-            }
-        }
-
-        public uint GetDigest() { return _value ^ 0xFFFFFFFF; }
-
-        private static uint CalculateDigest(byte[] data, uint offset, uint size)
-        {
-            CRC crc = new();
-            // crc.Init();
-            crc.Update(data, offset, size);
-            return crc.GetDigest();
-        }
-
-        private static bool VerifyDigest(uint digest, byte[] data, uint offset, uint size)
-        {
-            return CalculateDigest(data, offset, size) == digest;
-        }
-    }
-}