mirror of
https://github.com/crskycode/GARbro.git
synced 2024-11-23 13:45:34 +08:00
(PACKDAT): cosmetic changes.
This commit is contained in:
parent
d4c5941231
commit
6df62f37eb
@ -2,7 +2,7 @@
|
||||
//! \date Mon Jan 19 08:57:16 2015
|
||||
//! \brief Innocent Grey archives format.
|
||||
//
|
||||
// Copyright (C) 2015 by morkt
|
||||
// Copyright (C) 2015-2016 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
|
||||
@ -23,10 +23,10 @@
|
||||
// IN THE SOFTWARE.
|
||||
//
|
||||
|
||||
using System;
|
||||
using System.IO;
|
||||
using System.Collections.Generic;
|
||||
using System.ComponentModel.Composition;
|
||||
using GameRes.Utility;
|
||||
|
||||
namespace GameRes.Formats.SystemEpsylon
|
||||
{
|
||||
@ -54,7 +54,7 @@ namespace GameRes.Formats.SystemEpsylon
|
||||
if (!file.View.AsciiEqual (4, "DAT."))
|
||||
return null;
|
||||
int count = file.View.ReadInt32 (8);
|
||||
if (count <= 0 || count > 0xfffff)
|
||||
if (!IsSaneCount (count))
|
||||
return null;
|
||||
uint index_size = 0x30 * (uint)count;
|
||||
if (index_size > file.View.Reserve (0x10, index_size))
|
||||
@ -80,25 +80,25 @@ namespace GameRes.Formats.SystemEpsylon
|
||||
public override Stream OpenEntry (ArcFile arc, Entry entry)
|
||||
{
|
||||
var pentry = entry as PackDatEntry;
|
||||
if (null == pentry || 0 == (pentry.Flags & 0x10000))
|
||||
if (null == pentry || entry.Size < 4 || 0 == (pentry.Flags & 0x10000))
|
||||
return arc.File.CreateStream (entry.Offset, entry.Size);
|
||||
|
||||
byte[] input = new byte[pentry.Size];
|
||||
if (pentry.Size != arc.File.View.Read (entry.Offset, input, 0, pentry.Size))
|
||||
return arc.File.CreateStream (entry.Offset, entry.Size);
|
||||
|
||||
unsafe
|
||||
var input = arc.File.View.ReadBytes (entry.Offset, pentry.Size);
|
||||
if (input.Length == pentry.Size)
|
||||
{
|
||||
fixed (byte* buf_raw = input)
|
||||
unsafe
|
||||
{
|
||||
uint* encoded = (uint*)buf_raw;
|
||||
uint key = pentry.Size >> 2;
|
||||
key = (key << (((int)key & 7) + 8)) ^ key;
|
||||
for (uint i = entry.Size / 4; i != 0; --i )
|
||||
fixed (byte* buf_raw = input)
|
||||
{
|
||||
*encoded ^= key;
|
||||
int cl = (int)(*encoded++ % 24);
|
||||
key = (key << cl) | (key >> (32 - cl));
|
||||
uint* encoded = (uint*)buf_raw;
|
||||
uint key = pentry.Size >> 2;
|
||||
key = (key << (((int)key & 7) + 8)) ^ key;
|
||||
for (uint i = entry.Size / 4; i != 0; --i )
|
||||
{
|
||||
*encoded ^= key;
|
||||
int cl = (int)(*encoded++ % 24);
|
||||
key = Binary.RotL (key, cl);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user