change the brotli library

AssetStudio/Brotli/Utils.cs

@@ -0,0 +1,59 @@
+/* Copyright 2015 Google Inc. All Rights Reserved.
+
+Distributed under MIT license.
+See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
+*/
+namespace Org.Brotli.Dec
+{
+	/// <summary>A set of utility methods.</summary>
+	internal sealed class Utils
+	{
+		private static readonly byte[] ByteZeroes = new byte[1024];
+
+		private static readonly int[] IntZeroes = new int[1024];
+
+		/// <summary>Fills byte array with zeroes.</summary>
+		/// <remarks>
+		/// Fills byte array with zeroes.
+		/// <p> Current implementation uses
+		/// <see cref="System.Array.Copy(object, int, object, int, int)"/>
+		/// , so it should be used for length not
+		/// less than 16.
+		/// </remarks>
+		/// <param name="dest">array to fill with zeroes</param>
+		/// <param name="offset">the first byte to fill</param>
+		/// <param name="length">number of bytes to change</param>
+		internal static void FillWithZeroes(byte[] dest, int offset, int length)
+		{
+			int cursor = 0;
+			while (cursor < length)
+			{
+				int step = System.Math.Min(cursor + 1024, length) - cursor;
+				System.Array.Copy(ByteZeroes, 0, dest, offset + cursor, step);
+				cursor += step;
+			}
+		}
+
+		/// <summary>Fills int array with zeroes.</summary>
+		/// <remarks>
+		/// Fills int array with zeroes.
+		/// <p> Current implementation uses
+		/// <see cref="System.Array.Copy(object, int, object, int, int)"/>
+		/// , so it should be used for length not
+		/// less than 16.
+		/// </remarks>
+		/// <param name="dest">array to fill with zeroes</param>
+		/// <param name="offset">the first item to fill</param>
+		/// <param name="length">number of item to change</param>
+		internal static void FillWithZeroes(int[] dest, int offset, int length)
+		{
+			int cursor = 0;
+			while (cursor < length)
+			{
+				int step = System.Math.Min(cursor + 1024, length) - cursor;
+				System.Array.Copy(IntZeroes, 0, dest, offset + cursor, step);
+				cursor += step;
+			}
+		}
+	}
+}