/* 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
{
/// A set of utility methods.
internal sealed class Utils
{
private static readonly byte[] ByteZeroes = new byte[1024];
private static readonly int[] IntZeroes = new int[1024];
/// Fills byte array with zeroes.
///
/// Fills byte array with zeroes.
///
Current implementation uses
///
/// , so it should be used for length not
/// less than 16.
///
/// array to fill with zeroes
/// the first byte to fill
/// number of bytes to change
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;
}
}
/// Fills int array with zeroes.
///
/// Fills int array with zeroes.
///
Current implementation uses
///
/// , so it should be used for length not
/// less than 16.
///
/// array to fill with zeroes
/// the first item to fill
/// number of item to change
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;
}
}
}
}