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/*
* GNU AFFERO GENERAL PUBLIC LICENSE
* Version 3, 19 November 2007
* Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
* Everyone is permitted to copy and distribute verbatim copies
* of this license document, but changing it is not allowed.
*/
namespace UVtools.Core.Extensions
{
public static class BitExtensions
{
public static ushort ToUShortLittleEndian(byte byte1, byte byte2) => (ushort)(byte1 + (byte2 << 8));
public static ushort ToUShortBigEndian(byte byte1, byte byte2) => (ushort)((byte1 << 8) + byte2);
public static ushort ToUShortLittleEndian(byte[] buffer, int offset = 0)
=> (ushort)(buffer[offset] + (buffer[offset+1] << 8));
public static ushort ToUShortBigEndian(byte[] buffer, int offset = 0)
=> (ushort)((buffer[offset] << 8) + buffer[offset+1]);
public static uint ToUIntLittleEndian(byte byte1, byte byte2, byte byte3, byte byte4)
=> (uint)(byte1 + (byte2 << 8) + (byte3 << 16) + (byte4 << 24));
public static uint ToUIntBigEndian(byte byte1, byte byte2, byte byte3, byte byte4)
=> (uint)((byte1 << 24) + (byte1 << 16) + (byte1 << 8) + byte2);
public static uint ToUIntLittleEndian(byte[] buffer, int offset = 0)
=> (uint)(buffer[offset] + (buffer[offset + 1] << 8) + (buffer[offset + 2] << 16) + (buffer[offset + 3] << 24));
public static uint ToUIntBigEndian(byte[] buffer, int offset = 0)
=> (uint)((buffer[offset] << 24) + (buffer[offset+1] << 16) + (buffer[offset+2] << 8) + buffer[offset+3]);
public static byte[] ToBytesLittleEndian(ushort value)
{
var bytes = new byte[2];
ToBytesLittleEndian(value, bytes);
return bytes;
}
public static void ToBytesLittleEndian(ushort value, byte[] buffer, uint offset = 0)
{
buffer[offset] = (byte)value;
buffer[offset + 1] = (byte)(value >> 8);
}
public static byte[] ToBytesBigEndian(ushort value)
{
var bytes = new byte[2];
ToBytesBigEndian(value, bytes);
return bytes;
}
public static void ToBytesBigEndian(ushort value, byte[] buffer, uint offset = 0)
{
buffer[offset] = (byte)(value >> 8);
buffer[offset + 1] = (byte)value;
}
public static byte[] ToBytesLittleEndian(uint value)
{
var bytes = new byte[4];
ToBytesLittleEndian(value, bytes);
return bytes;
}
public static void ToBytesLittleEndian(uint value, byte[] buffer, uint offset = 0)
{
buffer[offset] = (byte)value;
buffer[offset + 1] = (byte)(value >> 8);
buffer[offset + 2] = (byte)(value >> 16);
buffer[offset + 3] = (byte)(value >> 24);
}
public static byte[] ToBytesBigEndian(uint value)
{
var bytes = new byte[4];
ToBytesBigEndian(value, bytes);
return bytes;
}
public static void ToBytesBigEndian(uint value, byte[] buffer, uint offset = 0)
{
buffer[offset] = (byte)(value >> 24);
buffer[offset + 1] = (byte)(value >> 16);
buffer[offset + 2] = (byte)(value >> 8);
buffer[offset + 3] = (byte)value;
}
public static byte[] ToBytesLittleEndian(int value)
{
var bytes = new byte[4];
ToBytesLittleEndian(value, bytes);
return bytes;
}
public static void ToBytesLittleEndian(int value, byte[] buffer, uint offset = 0)
{
buffer[offset] = (byte)value;
buffer[offset + 1] = (byte)(value >> 8);
buffer[offset + 2] = (byte)(value >> 16);
buffer[offset + 3] = (byte)(value >> 24);
}
public static byte[] ToBytesBigEndian(int value)
{
var bytes = new byte[4];
ToBytesBigEndian(value, bytes);
return bytes;
}
public static void ToBytesBigEndian(int value, byte[] buffer, uint offset = 0)
{
buffer[offset] = (byte)(value >> 24);
buffer[offset + 1] = (byte)(value >> 16);
buffer[offset + 2] = (byte)(value >> 8);
buffer[offset + 3] = (byte)value;
}
}
}
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