mirror of
https://github.com/crskycode/GARbro.git
synced 2024-12-29 06:14:13 +08:00
328 lines
9.8 KiB
C#
328 lines
9.8 KiB
C#
//! \file Utility.cs
|
|
//! \date Sat Jul 05 02:47:33 2014
|
|
//! \brief utility classes for GameRes assembly.
|
|
//
|
|
// Copyright (C) 2014 by morkt
|
|
//
|
|
// 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.Text;
|
|
|
|
namespace GameRes.Utility
|
|
{
|
|
public static class Binary
|
|
{
|
|
public static uint BigEndian (uint u)
|
|
{
|
|
return u << 24 | (u & 0xff00) << 8 | (u & 0xff0000) >> 8 | u >> 24;
|
|
}
|
|
public static int BigEndian (int i)
|
|
{
|
|
return (int)BigEndian ((uint)i);
|
|
}
|
|
public static ushort BigEndian (ushort u)
|
|
{
|
|
return (ushort)(u << 8 | u >> 8);
|
|
}
|
|
public static short BigEndian (short i)
|
|
{
|
|
return (short)BigEndian ((ushort)i);
|
|
}
|
|
public static ulong BigEndian (ulong u)
|
|
{
|
|
return (ulong)BigEndian((uint)(u & 0xffffffff)) << 32
|
|
| (ulong)BigEndian((uint)(u >> 32));
|
|
}
|
|
public static long BigEndian (long i)
|
|
{
|
|
return (long)BigEndian ((ulong)i);
|
|
}
|
|
|
|
public static bool AsciiEqual (byte[] name1, string name2)
|
|
{
|
|
return AsciiEqual (name1, 0, name2);
|
|
}
|
|
|
|
public static bool AsciiEqual (byte[] name1, int offset, string name2)
|
|
{
|
|
if (name1.Length-offset < name2.Length)
|
|
return false;
|
|
for (int i = 0; i < name2.Length; ++i)
|
|
if ((char)name1[offset+i] != name2[i])
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
public static void CopyOverlapped (byte[] data, int src, int dst, int count)
|
|
{
|
|
if (dst > src)
|
|
{
|
|
while (count > 0)
|
|
{
|
|
int preceding = System.Math.Min (dst - src, count);
|
|
System.Buffer.BlockCopy (data, src, data, dst, preceding);
|
|
dst += preceding;
|
|
count -= preceding;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
System.Buffer.BlockCopy (data, src, data, dst, count);
|
|
}
|
|
}
|
|
|
|
public static string GetCString (byte[] data, int index, int length_limit, Encoding enc)
|
|
{
|
|
int name_length = 0;
|
|
while (name_length < length_limit && 0 != data[index+name_length])
|
|
name_length++;
|
|
return enc.GetString (data, index, name_length);
|
|
}
|
|
|
|
public static string GetCString (byte[] data, int index, int length_limit)
|
|
{
|
|
return GetCString (data, index, length_limit, Encodings.cp932);
|
|
}
|
|
|
|
public static string GetCString (byte[] data, int index)
|
|
{
|
|
return GetCString (data, index, data.Length - index, Encodings.cp932);
|
|
}
|
|
|
|
public static uint RotR (uint v, int count)
|
|
{
|
|
count &= 0x1F;
|
|
return v >> count | v << (32-count);
|
|
}
|
|
|
|
public static uint RotL (uint v, int count)
|
|
{
|
|
count &= 0x1F;
|
|
return v << count | v >> (32-count);
|
|
}
|
|
|
|
public static ulong RotR (ulong v, int count)
|
|
{
|
|
count &= 0x3F;
|
|
return v >> count | v << (64-count);
|
|
}
|
|
|
|
public static ulong RotL (ulong v, int count)
|
|
{
|
|
count &= 0x3F;
|
|
return v << count | v >> (64-count);
|
|
}
|
|
|
|
public static byte RotByteR (byte v, int count)
|
|
{
|
|
count &= 7;
|
|
return (byte)(v >> count | v << (8-count));
|
|
}
|
|
|
|
public static byte RotByteL (byte v, int count)
|
|
{
|
|
count &= 7;
|
|
return (byte)(v << count | v >> (8-count));
|
|
}
|
|
}
|
|
|
|
public static class BigEndian
|
|
{
|
|
public static ushort ToUInt16 (byte[] value, int index)
|
|
{
|
|
return (ushort)(value[index] << 8 | value[index+1]);
|
|
}
|
|
|
|
public static short ToInt16 (byte[] value, int index)
|
|
{
|
|
return (short)(value[index] << 8 | value[index+1]);
|
|
}
|
|
|
|
public static uint ToUInt32 (byte[] value, int index)
|
|
{
|
|
return (uint)(value[index] << 24 | value[index+1] << 16 | value[index+2] << 8 | value[index+3]);
|
|
}
|
|
|
|
public static int ToInt32 (byte[] value, int index)
|
|
{
|
|
return (int)ToUInt32 (value, index);
|
|
}
|
|
}
|
|
|
|
public static class LittleEndian
|
|
{
|
|
public static ushort ToUInt16 (byte[] value, int index)
|
|
{
|
|
return (ushort)(value[index] | value[index+1] << 8);
|
|
}
|
|
|
|
public static short ToInt16 (byte[] value, int index)
|
|
{
|
|
return (short)(value[index] | value[index+1] << 8);
|
|
}
|
|
|
|
public static uint ToUInt32 (byte[] value, int index)
|
|
{
|
|
return (uint)(value[index] | value[index+1] << 8 | value[index+2] << 16 | value[index+3] << 24);
|
|
}
|
|
|
|
public static int ToInt32 (byte[] value, int index)
|
|
{
|
|
return (int)ToUInt32 (value, index);
|
|
}
|
|
|
|
public static ulong ToUInt64 (byte[] value, int index)
|
|
{
|
|
return (ulong)ToUInt32 (value, index) | ((ulong)ToUInt32 (value, index+4) << 32);
|
|
}
|
|
|
|
public static long ToInt64 (byte[] value, int index)
|
|
{
|
|
return (long)ToUInt64 (value, index);
|
|
}
|
|
|
|
public static void Pack (ushort value, byte[] buf, int index)
|
|
{
|
|
buf[index] = (byte)(value);
|
|
buf[index+1] = (byte)(value >> 8);
|
|
}
|
|
|
|
public static void Pack (uint value, byte[] buf, int index)
|
|
{
|
|
buf[index] = (byte)(value);
|
|
buf[index+1] = (byte)(value >> 8);
|
|
buf[index+2] = (byte)(value >> 16);
|
|
buf[index+3] = (byte)(value >> 24);
|
|
}
|
|
|
|
public static void Pack (ulong value, byte[] buf, int index)
|
|
{
|
|
Pack ((uint)value, buf, index);
|
|
Pack ((uint)(value >> 32), buf, index+4);
|
|
}
|
|
|
|
public static void Pack (short value, byte[] buf, int index)
|
|
{
|
|
Pack ((ushort)value, buf, index);
|
|
}
|
|
|
|
public static void Pack (int value, byte[] buf, int index)
|
|
{
|
|
Pack ((uint)value, buf, index);
|
|
}
|
|
|
|
public static void Pack (long value, byte[] buf, int index)
|
|
{
|
|
Pack ((ulong)value, buf, index);
|
|
}
|
|
}
|
|
|
|
public class AsciiString
|
|
{
|
|
public byte[] Value { get; set; }
|
|
public int Length { get { return Value.Length; } }
|
|
|
|
public AsciiString (int size)
|
|
{
|
|
Value = new byte[size];
|
|
}
|
|
|
|
public AsciiString (byte[] str)
|
|
{
|
|
Value = str;
|
|
}
|
|
|
|
public AsciiString (string str)
|
|
{
|
|
Value = Encoding.ASCII.GetBytes (str);
|
|
}
|
|
|
|
public override string ToString ()
|
|
{
|
|
return Encoding.ASCII.GetString (Value);
|
|
}
|
|
|
|
public override bool Equals (object o)
|
|
{
|
|
if (null == o)
|
|
return false;
|
|
var a = o as AsciiString;
|
|
if (null == (object)a)
|
|
return false;
|
|
return this == a;
|
|
}
|
|
|
|
public override int GetHashCode ()
|
|
{
|
|
int hash = 5381;
|
|
for (int i = 0; i < Value.Length; ++i)
|
|
{
|
|
hash = ((hash << 5) + hash) ^ Value[i];
|
|
}
|
|
return hash ^ (hash * 1566083941);;
|
|
}
|
|
|
|
public static bool operator== (AsciiString a, AsciiString b)
|
|
{
|
|
if (ReferenceEquals (a, b))
|
|
return true;
|
|
if (null == (object)a || null == (object)b)
|
|
return false;
|
|
if (a.Length != b.Length)
|
|
return false;
|
|
for (int i = 0; i < a.Length; ++i)
|
|
if (a.Value[i] != b.Value[i])
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
public static bool operator!= (AsciiString a, AsciiString b)
|
|
{
|
|
return !(a == b);
|
|
}
|
|
|
|
public static bool operator== (AsciiString a, string b)
|
|
{
|
|
return Binary.AsciiEqual (a.Value, b);
|
|
}
|
|
|
|
public static bool operator!= (AsciiString a, string b)
|
|
{
|
|
return !(a == b);
|
|
}
|
|
|
|
public static bool operator== (string a, AsciiString b)
|
|
{
|
|
return b == a;
|
|
}
|
|
|
|
public static bool operator!= (string a, AsciiString b)
|
|
{
|
|
return !(b == a);
|
|
}
|
|
}
|
|
|
|
public interface IDataUnpacker
|
|
{
|
|
byte[] Data { get; }
|
|
void Unpack ();
|
|
}
|
|
}
|