first commit

2026-09-03 04:45:36 +03:00
commit d5f52cc3d3
1038 changed files with 169579 additions and 0 deletions
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+using System;
+using System.Runtime.InteropServices;
+
+namespace ClassicAssist.UO
+{
+    public static class Compression
+    {
+        [DllImport( "zlib32.dll", EntryPoint = "uncompress" )]
+        private static extern int Uncompress32( byte[] dest, ref int destLen, byte[] source, int sourceLen );
+
+        [DllImport( "zlib64.dll", EntryPoint = "uncompress" )]
+        private static extern int Uncompress64( byte[] dest, ref int destLen, byte[] source, int sourceLen );
+
+        [DllImport( "zlib32.dll", EntryPoint = "compress" )]
+        private static extern int Compress32( byte[] dest, ref int destLen, byte[] source, int sourceLen );
+
+        [DllImport( "zlib64.dll", EntryPoint = "compress" )]
+        private static extern int Compress64( byte[] dest, ref int destLen, byte[] source, int sourceLen );
+
+        public static bool Uncompress( ref byte[] destBuffer, ref int destLength, byte[] sourceBuffer, int sourceLen )
+        {
+            int success = Environment.Is64BitProcess
+                ? Uncompress64( destBuffer, ref destLength, sourceBuffer, sourceLen )
+                : Uncompress32( destBuffer, ref destLength, sourceBuffer, sourceLen );
+
+            return success == 0;
+        }
+
+        public static byte[] Compress( byte[] bytes )
+        {
+            byte[] compressBytes = new byte[(int) ( bytes.Length * 1.001 ) + 12];
+
+            int length = compressBytes.Length;
+
+            if ( Environment.Is64BitProcess )
+            {
+                Compress64( compressBytes, ref length, bytes, bytes.Length );
+            }
+            else
+            {
+                Compress32( compressBytes, ref length, bytes, bytes.Length );
+            }
+
+            Array.Resize( ref compressBytes, length );
+
+            return compressBytes;
+        }
+    }
+}