/* * Copyright (c) 2008 Jonathan Wagner * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ using System; namespace GameLogic { public class Converter { public static Int32 GetBigEndian(Int32 value) { if (BitConverter.IsLittleEndian) { return swapByteOrder(value); } else { return value; } } public static UInt16 GetBigEndian(UInt16 value) { if (BitConverter.IsLittleEndian) { return swapByteOrder(value); } else { return value; } } public static UInt32 GetBigEndian(UInt32 value) { if (BitConverter.IsLittleEndian) { return swapByteOrder(value); } else { return value; } } public static Int64 GetBigEndian(Int64 value) { if (BitConverter.IsLittleEndian) { return swapByteOrder(value); } else { return value; } } public static Double GetBigEndian(Double value) { if (BitConverter.IsLittleEndian) { return swapByteOrder(value); } else { return value; } } public static float GetBigEndian(float value) { if (BitConverter.IsLittleEndian) { return swapByteOrder((int)value); } else { return value; } } public static Int32 GetLittleEndian(Int32 value) { if (BitConverter.IsLittleEndian) { return value; } else { return swapByteOrder(value); } } public static UInt32 GetLittleEndian(UInt32 value) { if (BitConverter.IsLittleEndian) { return value; } else { return swapByteOrder(value); } } public static UInt16 GetLittleEndian(UInt16 value) { if (BitConverter.IsLittleEndian) { return value; } else { return swapByteOrder(value); } } public static Double GetLittleEndian(Double value) { if (BitConverter.IsLittleEndian) { return value; } else { return swapByteOrder(value); } } private static Int32 swapByteOrder(Int32 value) { Int32 swap = (Int32)((0x000000FF) & (value >> 24) | (0x0000FF00) & (value >> 8) | (0x00FF0000) & (value << 8) | (0xFF000000) & (value << 24)); return swap; } private static Int64 swapByteOrder(Int64 value) { UInt64 uvalue = (UInt64)value; UInt64 swap = ((0x00000000000000FF) & (uvalue >> 56) | (0x000000000000FF00) & (uvalue >> 40) | (0x0000000000FF0000) & (uvalue >> 24) | (0x00000000FF000000) & (uvalue >> 8) | (0x000000FF00000000) & (uvalue << 8) | (0x0000FF0000000000) & (uvalue << 24) | (0x00FF000000000000) & (uvalue << 40) | (0xFF00000000000000) & (uvalue << 56)); return (Int64)swap; } private static UInt16 swapByteOrder(UInt16 value) { return (UInt16)((0x00FF & (value >> 8)) | (0xFF00 & (value << 8))); } private static UInt32 swapByteOrder(UInt32 value) { UInt32 swap = ((0x000000FF) & (value >> 24) | (0x0000FF00) & (value >> 8) | (0x00FF0000) & (value << 8) | (0xFF000000) & (value << 24)); return swap; } private static Double swapByteOrder(Double value) { Byte[] buffer = BitConverter.GetBytes(value); Array.Reverse(buffer, 0, buffer.Length); return BitConverter.ToDouble(buffer, 0); } } }