mirror of
https://github.com/crskycode/GARbro.git
synced 2024-11-23 21:55:34 +08:00
46dbf2b142
(FormatCatalog.CreateEntry): method renamed to 'Create' and made generic towards Entry type.
289 lines
12 KiB
C#
289 lines
12 KiB
C#
//! \file ArcMGPK.cs
|
|
//! \date Mon Nov 03 20:03:36 2014
|
|
//! \brief MGPK archive format.
|
|
//
|
|
// 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;
|
|
using System.Collections.Generic;
|
|
using System.ComponentModel.Composition;
|
|
using System.IO;
|
|
using System.Text;
|
|
|
|
namespace GameRes.Formats.Mg
|
|
{
|
|
[Export(typeof(ArchiveFormat))]
|
|
public class MgpkOpener : ArchiveFormat
|
|
{
|
|
public override string Tag { get { return "MGPK"; } }
|
|
public override string Description { get { return "MG resource archive"; } }
|
|
public override uint Signature { get { return 0x4b50474d; } } // MGPK
|
|
public override bool IsHierarchic { get { return false; } }
|
|
public override bool CanCreate { get { return false; } }
|
|
|
|
public override ArcFile TryOpen (ArcView file)
|
|
{
|
|
uint count = file.View.ReadUInt32 (8);
|
|
if (count > 0xffffff)
|
|
return null;
|
|
long cur_offset = 0x0c;
|
|
var dir = new List<Entry> ((int)count);
|
|
for (uint i = 0; i < count; ++i)
|
|
{
|
|
uint name_length = file.View.ReadByte (cur_offset);
|
|
string name = file.View.ReadString (cur_offset+1, name_length, Encoding.UTF8);
|
|
var entry = FormatCatalog.Instance.Create<Entry> (name);
|
|
entry.Offset = file.View.ReadUInt32 (cur_offset+0x20);
|
|
entry.Size = file.View.ReadUInt32 (cur_offset+0x24);
|
|
if (!entry.CheckPlacement (file.MaxOffset))
|
|
return null;
|
|
dir.Add (entry);
|
|
cur_offset += 0x30;
|
|
}
|
|
return new ArcFile (file, this, dir);
|
|
}
|
|
|
|
public override Stream OpenEntry (ArcFile arc, Entry entry)
|
|
{
|
|
Stream input = arc.File.CreateStream (entry.Offset, entry.Size);
|
|
string ext = Path.GetExtension (entry.Name).ToLowerInvariant();
|
|
if (".png" == ext)
|
|
{
|
|
byte[] data = new byte[entry.Size];
|
|
input.Read (data, 0, data.Length);
|
|
input.Dispose();
|
|
DecryptBlock (data);
|
|
return new MemoryStream (data, false);
|
|
}
|
|
else if (".txt" == ext)
|
|
{
|
|
byte[] data = new byte[entry.Size];
|
|
input.Read (data, 0, data.Length);
|
|
input.Dispose();
|
|
DecryptBlock (data);
|
|
return DecompressStream (data);
|
|
}
|
|
else
|
|
return input;
|
|
}
|
|
|
|
public static readonly byte[] Key = new byte[] {
|
|
229, 101, 186, 26, 61, 198, 127, 158, 70, 21, 137
|
|
};
|
|
|
|
private byte[] DecryptBlock (byte[] input)
|
|
{
|
|
byte[] key = (byte[])Key.Clone();
|
|
for (int i = 0; i < input.Length; i++)
|
|
{
|
|
input[i] ^= key[i % key.Length];
|
|
key[i % key.Length] += 27;
|
|
}
|
|
return input;
|
|
}
|
|
|
|
private Stream DecompressStream (byte[] input)
|
|
{
|
|
int num = input.Length * 2;
|
|
byte[] src = new byte[num];
|
|
int num2;
|
|
for (num2 = lzf_decompress (input, ref src); num2 == 0; num2 = lzf_decompress (input, ref src))
|
|
{
|
|
num *= 2;
|
|
src = new byte[num];
|
|
}
|
|
return new MemoryStream (src, 0, num2, false);
|
|
}
|
|
|
|
private static int lzf_decompress (byte[] input, ref byte[] output)
|
|
{
|
|
int num = input.Length;
|
|
int num2 = output.Length;
|
|
uint num3 = 0u;
|
|
uint num4 = 0u;
|
|
do
|
|
{
|
|
uint num5 = (uint)input[(int)((UIntPtr)(num3++))];
|
|
if (num5 < 32u)
|
|
{
|
|
num5 += 1u;
|
|
if ((ulong)(num4 + num5) > (ulong)((long)num2))
|
|
{
|
|
return 0;
|
|
}
|
|
do
|
|
{
|
|
output[(int)((UIntPtr)(num4++))] = input[(int)((UIntPtr)(num3++))];
|
|
}
|
|
while (--num5 != 0u);
|
|
}
|
|
else
|
|
{
|
|
uint num6 = num5 >> 5;
|
|
int num7 = (int)(num4 - ((num5 & 31u) << 8) - 1u);
|
|
if (num6 == 7u)
|
|
{
|
|
num6 += (uint)input[(int)((UIntPtr)(num3++))];
|
|
}
|
|
num7 -= (int)input[(int)((UIntPtr)(num3++))];
|
|
if ((ulong)(num4 + num6 + 2u) > (ulong)((long)num2))
|
|
{
|
|
return 0;
|
|
}
|
|
if (num7 < 0)
|
|
{
|
|
return 0;
|
|
}
|
|
output[(int)((UIntPtr)(num4++))] = output[num7++];
|
|
output[(int)((UIntPtr)(num4++))] = output[num7++];
|
|
do
|
|
{
|
|
output[(int)((UIntPtr)(num4++))] = output[num7++];
|
|
}
|
|
while (--num6 != 0u);
|
|
}
|
|
}
|
|
while ((ulong)num3 < (ulong)((long)num));
|
|
return (int)num4;
|
|
}
|
|
|
|
private static readonly uint uint_0 = 14u;
|
|
private static readonly uint uint_1 = 16384u;
|
|
private static readonly uint uint_2 = 32u;
|
|
private static readonly uint uint_3 = 8192u;
|
|
private static readonly uint uint_4 = 264u;
|
|
private static readonly long[] long_0 = new long[uint_1];
|
|
|
|
private static int lzf_compress (byte[] input, ref byte[] output)
|
|
{
|
|
int num = input.Length;
|
|
int num2 = output.Length;
|
|
Array.Clear (long_0, 0, (int)uint_1);
|
|
uint num3 = 0u;
|
|
uint num4 = 0u;
|
|
uint num5 = (uint)((int)input[(int)((UIntPtr)0)] << 8 | (int)input[(int)((UIntPtr)(0 + 1))]);
|
|
int num6 = 0;
|
|
while (true)
|
|
{
|
|
if ((ulong)num3 < (ulong)((long)(num - 2)))
|
|
{
|
|
num5 = (num5 << 8 | (uint)input[(int)((UIntPtr)(num3 + 2u))]);
|
|
long num7 = (long)((ulong)((num5 ^ num5 << 5) >> (int)(24u - uint_0 - num5 * 5u) & uint_1 - 1u));
|
|
long num8 = long_0[(int)checked((IntPtr)num7)];
|
|
long_0[(int)checked((IntPtr)num7)] = (long)((ulong)num3);
|
|
long num9;
|
|
if ((num9 = (long)((ulong)num3 - (ulong)num8 - 1uL)) < (long)((ulong)uint_3) && (ulong)(num3 + 4u) < (ulong)((long)num) && num8 > 0L && input[(int)checked((IntPtr)num8)] == input[(int)((UIntPtr)num3)] && input[(int)checked((IntPtr)unchecked(num8 + 1L))] == input[(int)((UIntPtr)(num3 + 1u))] && input[(int)checked((IntPtr)unchecked(num8 + 2L))] == input[(int)((UIntPtr)(num3 + 2u))])
|
|
{
|
|
uint num10 = 2u;
|
|
uint num11 = (uint)(num - (int)num3 - 2);
|
|
num11 = ((num11 <= uint_4) ? num11 : uint_4);
|
|
if ((ulong)num4 + (ulong)((long)num6) + 1uL + 3uL >= (ulong)((long)num2))
|
|
{
|
|
return 0;
|
|
}
|
|
do
|
|
{
|
|
num10 += 1u;
|
|
if (num10 >= num11)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
while (input[(int)checked((IntPtr)unchecked(num8 + (long)((ulong)num10)))] == input[(int)((UIntPtr)(num3 + num10))]);
|
|
// IL_199:
|
|
if (num6 != 0)
|
|
{
|
|
output[(int)((UIntPtr)(num4++))] = (byte)(num6 - 1);
|
|
num6 = -num6;
|
|
do
|
|
{
|
|
output[(int)((UIntPtr)(num4++))] = input[(int)checked((IntPtr)unchecked((ulong)num3 + (ulong)((long)num6)))];
|
|
}
|
|
while (++num6 != 0);
|
|
}
|
|
num10 -= 2u;
|
|
num3 += 1u;
|
|
if (num10 < 7u)
|
|
{
|
|
output[(int)((UIntPtr)(num4++))] = (byte)((num9 >> 8) + (long)((ulong)((ulong)num10 << 5)));
|
|
}
|
|
else
|
|
{
|
|
output[(int)((UIntPtr)(num4++))] = (byte)((num9 >> 8) + 224L);
|
|
output[(int)((UIntPtr)(num4++))] = (byte)(num10 - 7u);
|
|
}
|
|
output[(int)((UIntPtr)(num4++))] = (byte)num9;
|
|
num3 += num10 - 1u;
|
|
num5 = (uint)((int)input[(int)((UIntPtr)num3)] << 8 | (int)input[(int)((UIntPtr)(num3 + 1u))]);
|
|
num5 = (num5 << 8 | (uint)input[(int)((UIntPtr)(num3 + 2u))]);
|
|
long_0[(int)((UIntPtr)((num5 ^ num5 << 5) >> (int)(24u - uint_0 - num5 * 5u) & uint_1 - 1u))] = (long)((ulong)num3);
|
|
num3 += 1u;
|
|
num5 = (num5 << 8 | (uint)input[(int)((UIntPtr)(num3 + 2u))]);
|
|
long_0[(int)((UIntPtr)((num5 ^ num5 << 5) >> (int)(24u - uint_0 - num5 * 5u) & uint_1 - 1u))] = (long)((ulong)num3);
|
|
num3 += 1u;
|
|
continue;
|
|
// goto IL_199;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ((ulong)num3 == (ulong)((long)num))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
num6++;
|
|
num3 += 1u;
|
|
if ((long)num6 == (long)((ulong)uint_2))
|
|
{
|
|
if ((ulong)(num4 + 1u + uint_2) >= (ulong)((long)num2))
|
|
{
|
|
return 0;
|
|
}
|
|
output[(int)((UIntPtr)(num4++))] = (byte)(uint_2 - 1u);
|
|
num6 = -num6;
|
|
do
|
|
{
|
|
output[(int)((UIntPtr)(num4++))] = input[(int)checked((IntPtr)unchecked((ulong)num3 + (ulong)((long)num6)))];
|
|
}
|
|
while (++num6 != 0);
|
|
}
|
|
}
|
|
if (num6 != 0)
|
|
{
|
|
if ((ulong)num4 + (ulong)((long)num6) + 1uL >= (ulong)((long)num2))
|
|
{
|
|
return 0;
|
|
}
|
|
output[(int)((UIntPtr)(num4++))] = (byte)(num6 - 1);
|
|
num6 = -num6;
|
|
do
|
|
{
|
|
output[(int)((UIntPtr)(num4++))] = input[(int)checked((IntPtr)unchecked((ulong)num3 + (ulong)((long)num6)))];
|
|
}
|
|
while (++num6 != 0);
|
|
}
|
|
return (int)num4;
|
|
}
|
|
}
|
|
}
|