516 lines
14 KiB
C#
516 lines
14 KiB
C#
using System;
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using System.Diagnostics;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Text;
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namespace BizHawk
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{
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public struct Tuple<T1,T2> : IEquatable<Tuple<T1, T2>>
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{
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private readonly T1 first;
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private readonly T2 second;
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public T1 First { get { return first; } }
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public T2 Second { get { return second; } }
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public Tuple(T1 o1, T2 o2)
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{
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first = o1;
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second = o2;
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}
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public bool Equals(Tuple<T1, T2> other)
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{
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return first.Equals(other.first) &&
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second.Equals(other.second);
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}
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public override bool Equals(object obj)
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{
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if (obj is Tuple<T1, T2>)
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return this.Equals((Tuple<T1, T2>)obj);
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else
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return false;
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}
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public override int GetHashCode()
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{
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return first.GetHashCode() ^ second.GetHashCode();
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}
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}
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public static class Extensions
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{
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public static bool IsBinary(this string str)
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{
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for (int i = 0; i < str.Length; i++)
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{
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char c = str[i];
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if (c == '0' || c == '1')
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continue;
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return false;
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}
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return true;
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}
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public static bool In(this string str, params string[] options)
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{
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foreach (string opt in options)
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{
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if (opt.Equals(str, StringComparison.CurrentCultureIgnoreCase)) return true;
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}
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return false;
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}
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public static bool In(this string str, IEnumerable<string> options)
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{
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foreach (string opt in options)
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{
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if (opt.Equals(str,StringComparison.CurrentCultureIgnoreCase)) return true;
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}
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return false;
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}
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public static bool In<T>(this string str, IEnumerable<T> options, Func<T, string, bool> eval)
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{
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foreach (T opt in options)
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{
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if (eval(opt, str) == true)
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return true;
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}
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return false;
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}
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public static bool NotIn(this string str, params string[] options)
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{
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foreach (string opt in options)
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{
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if (opt.ToLower() == str.ToLower()) return false;
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}
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return true;
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}
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public static bool NotIn(this string str, IEnumerable<string> options)
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{
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foreach (string opt in options)
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{
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if (opt.ToLower() == str.ToLower()) return false;
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}
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return true;
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}
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public static bool In(this int i, params int[] options)
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{
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foreach (int j in options)
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{
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if (i == j) return true;
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}
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return false;
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}
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public static bool In(this int i, IEnumerable<int> options)
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{
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foreach (int j in options)
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{
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if (i == j) return true;
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}
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return false;
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}
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public static bool ContainsStartsWith(this IEnumerable<string> options, string str)
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{
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foreach (string opt in options)
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{
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if (opt.StartsWith(str)) return true;
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}
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return false;
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}
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public static string GetOptionValue(this IEnumerable<string> options, string str)
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{
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try
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{
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foreach (string opt in options)
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{
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if (opt.StartsWith(str))
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{
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return opt.Split('=')[1];
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}
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}
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}
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catch (Exception) { }
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return null;
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}
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public static bool IsValidRomExtentsion(this string str, params string[] romExtensions)
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{
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string strUpper = str.ToUpper();
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foreach (string ext in romExtensions)
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{
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if (strUpper.EndsWith(ext.ToUpper())) return true;
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}
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return false;
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}
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public static string ToCommaSeparated(this List<string> list)
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{
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var sb = new StringBuilder();
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for (int i = 0; i < list.Count; i++)
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{
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if (i > 0) sb.Append(",");
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sb.Append(list[i]);
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}
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return sb.ToString();
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}
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public static void SaveAsHex(this byte[] buffer, TextWriter writer)
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{
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for (int i=0; i<buffer.Length; i++)
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{
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writer.Write("{0:X2}", buffer[i]);
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}
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writer.WriteLine();
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}
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public static void SaveAsHex(this byte[] buffer, TextWriter writer, int length)
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{
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for (int i = 0; i < length; i++)
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{
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writer.Write("{0:X2}", buffer[i]);
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}
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writer.WriteLine();
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}
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public static void SaveAsHex(this short[] buffer, TextWriter writer)
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{
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for (int i = 0; i < buffer.Length; i++)
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{
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writer.Write("{0:X4}", buffer[i]);
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}
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writer.WriteLine();
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}
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public static void SaveAsHex(this ushort[] buffer, TextWriter writer)
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{
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for (int i = 0; i < buffer.Length; i++)
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{
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writer.Write("{0:X4}", buffer[i]);
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}
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writer.WriteLine();
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}
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public static void SaveAsHex(this int[] buffer, TextWriter writer)
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{
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for (int i = 0; i < buffer.Length; i++)
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{
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writer.Write("{0:X8}", buffer[i]);
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}
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writer.WriteLine();
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}
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public static void SaveAsHex(this uint[] buffer, TextWriter writer)
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{
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for (int i = 0; i < buffer.Length; i++)
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{
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writer.Write("{0:X8}", buffer[i]);
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}
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writer.WriteLine();
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}
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public static void Write(this BinaryWriter bw, int[] buffer)
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{
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for (int i = 0; i < buffer.Length; i++)
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bw.Write(buffer[i]);
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}
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public static void Write(this BinaryWriter bw, uint[] buffer)
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{
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for (int i = 0; i < buffer.Length; i++)
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bw.Write(buffer[i]);
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}
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public static void Write(this BinaryWriter bw, short[] buffer)
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{
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for (int i = 0; i < buffer.Length; i++)
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bw.Write(buffer[i]);
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}
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public static void Write(this BinaryWriter bw, ushort[] buffer)
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{
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for (int i = 0; i < buffer.Length; i++)
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bw.Write(buffer[i]);
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}
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public static int[] ReadInts(this BinaryReader br, int num)
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{
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int[] ret = new int[num];
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for (int i = 0; i < num; i++)
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ret[i] = br.ReadInt32();
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return ret;
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}
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public static short[] ReadShorts(this BinaryReader br, int num)
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{
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short[] ret = new short[num];
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for (int i = 0; i < num; i++)
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ret[i] = br.ReadInt16();
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return ret;
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}
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public static void ReadFromHex(this byte[] buffer, string hex)
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{
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if (hex.Length % 2 != 0)
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throw new Exception("Hex value string does not appear to be properly formatted.");
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for (int i=0; i<buffer.Length && i*2<hex.Length; i++)
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{
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string bytehex = "" + hex[i*2] + hex[i*2 + 1];
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buffer[i] = byte.Parse(bytehex, NumberStyles.HexNumber);
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}
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}
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public static void ReadFromHex(this short[] buffer, string hex)
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{
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if (hex.Length % 4 != 0)
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throw new Exception("Hex value string does not appear to be properly formatted.");
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for (int i = 0; i < buffer.Length && i * 4 < hex.Length; i++)
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{
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string shorthex = "" + hex[i * 4] + hex[(i * 4) + 1] + hex[(i * 4) + 2] + hex[(i * 4) + 3];
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buffer[i] = short.Parse(shorthex, NumberStyles.HexNumber);
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}
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}
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public static void ReadFromHex(this ushort[] buffer, string hex)
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{
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if (hex.Length % 4 != 0)
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throw new Exception("Hex value string does not appear to be properly formatted.");
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for (int i = 0; i < buffer.Length && i * 4 < hex.Length; i++)
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{
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string ushorthex = "" + hex[i*4] + hex[(i*4)+1] + hex[(i*4)+2] + hex[(i*4)+3];
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buffer[i] = ushort.Parse(ushorthex, NumberStyles.HexNumber);
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}
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}
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public static void ReadFromHex(this int[] buffer, BinaryWriter bw)
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{
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for (int i = 0; i < buffer.Length; i++)
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bw.Write(buffer[i]);
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}
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public static void SaveAsHex(this uint[] buffer, BinaryWriter bw)
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{
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for (int i = 0; i < buffer.Length; i++)
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bw.Write(buffer[i]);
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}
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//these don't work??? they dont get chosen by compiler
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public static void Write(this BinaryWriter bw, Bit bit) { bw.Write((bool)bit); }
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public static Bit ReadBit(this BinaryReader br) { return br.ReadBoolean(); }
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}
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public static class Colors
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{
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public static int ARGB(byte red, byte green, byte blue)
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{
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return (int) ((uint)((red << 0x10) | (green << 8) | blue | (0xFF << 0x18)));
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}
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public static int ARGB(byte red, byte green, byte blue, byte alpha)
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{
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return (int) ((uint)((red << 0x10) | (green << 8) | blue | (alpha << 0x18)));
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}
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public static int Luminosity(byte lum)
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{
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return (int)((uint)((lum << 0x10) | (lum << 8) | lum | (0xFF << 0x18)));
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}
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}
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//I think this is a little faster with uint than with byte
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public struct Bit
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{
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Bit(uint val) { this.val = val; }
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uint val;
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public static implicit operator Bit(int rhs) { Debug.Assert((rhs & ~1) == 0); return new Bit((uint)(rhs)); }
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public static implicit operator Bit(uint rhs) { Debug.Assert((rhs & ~1) == 0); return new Bit((uint)(rhs)); }
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public static implicit operator Bit(byte rhs) { Debug.Assert((rhs & ~1) == 0); return new Bit((uint)(rhs)); }
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public static implicit operator Bit(bool rhs) { return new Bit(rhs ? (byte)1 : (byte)0); }
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public static implicit operator long(Bit rhs) { return (long)rhs.val; }
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public static implicit operator int(Bit rhs) { return (int)rhs.val; }
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public static implicit operator uint(Bit rhs) { return (uint)rhs.val; }
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public static implicit operator byte(Bit rhs) { return (byte)rhs.val; }
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public static implicit operator bool(Bit rhs) { return rhs.val != 0; }
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public override string ToString()
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{
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return val.ToString();
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}
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public static bool operator ==(Bit lhs, Bit rhs) { return lhs.val == rhs.val; }
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public static bool operator !=(Bit lhs, Bit rhs) { return lhs.val != rhs.val; }
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public override int GetHashCode() { return val.GetHashCode(); }
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public override bool Equals(object obj) { return this == (Bit)obj; } //this is probably wrong
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}
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public static class Util
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{
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public static bool IsPowerOfTwo(int x)
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{
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if (x == 0) return true;
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if (x == 1) return true;
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return (x & (x - 1)) == 0;
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}
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public static int SaveRamBytesUsed(byte[] SaveRAM)
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{
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for (int j = SaveRAM.Length - 1; j >= 0; j--)
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if (SaveRAM[j] != 0)
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return j + 1;
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return 0;
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}
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/// <summary>
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/// conerts bytes to an uppercase string of hex numbers in upper case without any spacing or anything
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/// //could be extension method
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/// </summary>
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public static string BytesToHexString(byte[] bytes)
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{
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StringBuilder sb = new StringBuilder();
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foreach (byte b in bytes)
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sb.AppendFormat("{0:X2}", b);
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return sb.ToString();
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}
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//could be extension method
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public static byte[] HexStringToBytes(string str)
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{
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MemoryStream ms = new MemoryStream();
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if (str.Length % 2 != 0) throw new ArgumentException();
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int len = str.Length/2;
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for (int i = 0; i < len; i++)
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{
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int d = 0;
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for (int j = 0; j < 2; j++)
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{
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char c = char.ToLower(str[i * 2 + j]);
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if (c >= '0' && c <= '9')
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d += (c - '0');
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else if (c >= 'a' && c <= 'f')
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d += (c - 'a') + 10;
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else throw new ArgumentException();
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if (j == 0) d <<= 4;
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}
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ms.WriteByte((byte)d);
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}
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return ms.ToArray();
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}
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//could be extension method
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public static void WriteByteBuffer(BinaryWriter bw, byte[] data)
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{
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if (data == null) bw.Write(0);
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else
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{
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bw.Write(data.Length);
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bw.Write(data);
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}
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}
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//could be extension method
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public static byte[] ReadByteBuffer(BinaryReader br, bool return_null)
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{
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int len = br.ReadInt32();
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if (len == 0 && return_null) return null;
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byte[] ret = new byte[len];
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int ofs = 0;
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while (len > 0)
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{
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int done = br.Read(ret, ofs, len);
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ofs += done;
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len -= done;
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}
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return ret;
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}
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public static unsafe int memcmp(void* a, string b, int len)
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{
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fixed (byte* bp = System.Text.Encoding.ASCII.GetBytes(b))
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return memcmp(a, bp, len);
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}
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public static unsafe int memcmp(void* a, void* b, int len)
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{
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byte* ba = (byte*)a;
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byte* bb = (byte*)b;
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for (int i = 0; i < len; i++)
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{
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byte _a = ba[i];
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byte _b = bb[i];
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int c = _a - _b;
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if (c != 0) return c;
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}
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return 0;
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}
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public static unsafe void memset(void* ptr, int val, int len)
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{
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byte* bptr = (byte*)ptr;
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for (int i = 0; i < len; i++)
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bptr[i] = (byte)val;
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}
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public static byte[] ReadAllBytes(Stream stream)
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{
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const int BUFF_SIZE = 4096;
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byte[] buffer = new byte[BUFF_SIZE];
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int bytesRead = 0;
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var inStream = new BufferedStream(stream);
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var outStream = new MemoryStream();
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while ((bytesRead = inStream.Read(buffer, 0, BUFF_SIZE)) > 0)
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{
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outStream.Write(buffer, 0, bytesRead);
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}
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return outStream.ToArray();
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}
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}
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public static class BITREV
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{
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public static byte[] byte_8;
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static BITREV()
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{
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make_byte_8();
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}
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static void make_byte_8()
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{
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int bits = 8;
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int n = 1 << 8;
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byte_8 = new byte[n];
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int m = 1;
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int a = n >> 1;
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int j = 2;
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byte_8[0] = 0;
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byte_8[1] = (byte)a;
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while ((--bits) != 0)
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{
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m <<= 1;
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a >>= 1;
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for (int i = 0; i < m; i++)
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byte_8[j++] = (byte)(byte_8[i] + a);
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}
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}
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}
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}
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