init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Utilities/Encoders/BufferedEncoder.cs

@@ -0,0 +1,63 @@
+using System;
+
+namespace Org.BouncyCastle.Utilities.Encoders;
+
+public class BufferedEncoder
+{
+	internal byte[] Buffer;
+
+	internal int bufOff;
+
+	internal ITranslator translator;
+
+	public BufferedEncoder(ITranslator translator, int bufferSize)
+	{
+		this.translator = translator;
+		if (bufferSize % translator.GetEncodedBlockSize() != 0)
+		{
+			throw new ArgumentException("buffer size not multiple of input block size");
+		}
+		Buffer = new byte[bufferSize];
+	}
+
+	public int ProcessByte(byte input, byte[] outBytes, int outOff)
+	{
+		int result = 0;
+		Buffer[bufOff++] = input;
+		if (bufOff == Buffer.Length)
+		{
+			result = translator.Encode(Buffer, 0, Buffer.Length, outBytes, outOff);
+			bufOff = 0;
+		}
+		return result;
+	}
+
+	public int ProcessBytes(byte[] input, int inOff, int len, byte[] outBytes, int outOff)
+	{
+		if (len < 0)
+		{
+			throw new ArgumentException("Can't have a negative input length!");
+		}
+		int num = 0;
+		int num2 = Buffer.Length - bufOff;
+		if (len > num2)
+		{
+			Array.Copy(input, inOff, Buffer, bufOff, num2);
+			num += translator.Encode(Buffer, 0, Buffer.Length, outBytes, outOff);
+			bufOff = 0;
+			len -= num2;
+			inOff += num2;
+			outOff += num;
+			int num3 = len - len % Buffer.Length;
+			num += translator.Encode(input, inOff, num3, outBytes, outOff);
+			len -= num3;
+			inOff += num3;
+		}
+		if (len != 0)
+		{
+			Array.Copy(input, inOff, Buffer, bufOff, len);
+			bufOff += len;
+		}
+		return num;
+	}
+}