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