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(Legacy): CATF archives.

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morkt 2017-12-19 21:11:57 +04:00
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Legacy/SystemAqua/ArcDAT.cs Normal file
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//! \file ArcDAT.cs
//! \date 2017 Dec 18
//! \brief SystemAQUA engine resource archive.
//
// Copyright (C) 2017 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.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using GameRes.Utility;
namespace GameRes.Formats.SystemAqua
{
[Export(typeof(ArchiveFormat))]
public class DatOpener : ArchiveFormat
{
public override string Tag { get { return "DAT/CATF"; } }
public override string Description { get { return "SystemAQUA engine resource archive"; } }
public override uint Signature { get { return 0x46544143; } } // 'CATF'
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (0x10);
if (!IsSaneCount (count))
return null;
uint index_offset = file.View.ReadUInt32 (8);
if (index_offset >= file.MaxOffset)
return null;
var base_name = Path.GetFileNameWithoutExtension (file.Name);
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var entry = new PackedEntry {
Name = string.Format ("{0}#{1:D4}", base_name, i),
Size = file.View.ReadUInt32 (index_offset),
Offset = file.View.ReadUInt32 (index_offset+4),
};
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
index_offset += 8;
}
DetectFileTypes (dir, file);
return new ArcFile (file, this, dir);
}
void DetectFileTypes (List<Entry> dir, ArcView file)
{
var type = new byte[3];
foreach (PackedEntry entry in dir)
{
uint signature = file.View.ReadUInt32 (entry.Offset);
if (signature != 0x34655A4C) // 'LZe4'
{
entry.ChangeType (AutoEntry.DetectFileType (signature));
}
else if (entry.Size > 0x40)
{
entry.IsPacked = true;
entry.UnpackedSize = file.View.ReadUInt32 (entry.Offset+8);
file.View.Read (entry.Offset+0xC, type, 0, 3);
if (type.AsciiEqual ("000"))
{
entry.ChangeType (AudioFormat.Wav);
}
else
{
DecryptType (type);
if (type.AsciiEqual ("BMP"))
entry.ChangeType (ImageFormat.Bmp);
else if (type.AsciiEqual ("WAV"))
entry.ChangeType (AudioFormat.Wav);
else if (type.AsciiEqual ("MID"))
entry.Name = Path.ChangeExtension (entry.Name, "mid");
}
}
}
}
void DecryptType (byte[] type)
{
type[0] = Binary.RotByteL ((byte)~type[0], 4);
type[1] = Binary.RotByteL ((byte)~type[1], 4);
type[2] = Binary.RotByteL ((byte)~type[2], 4);
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var pent = entry as PackedEntry;
if (null == pent || !pent.IsPacked)
return base.OpenEntry (arc, entry);
var type = arc.File.View.ReadBytes (entry.Offset+0xC, 3);
DecryptType (type);
using (var input = arc.File.CreateStream (entry.Offset+0x40, entry.Size-0x40))
{
var data = new byte[pent.UnpackedSize];
int output_pos = 0;
if (type.AsciiEqual ("BMP"))
output_pos = PrepareBmpHeader (input, data);
LzUnpack (input, data, output_pos);
return new BinMemoryStream (data, entry.Name);
}
}
void LzUnpack (Stream input, byte[] output, int dst)
{
var frame = new byte[0x4000];
int frame_pos = 1;
using (var bits = new MsbBitStream (input, true))
{
while (dst < output.Length)
{
int ctl = bits.GetNextBit();
if (-1 == ctl)
break;
if (ctl != 0)
{
int v = bits.GetBits (8);
output[dst++] = frame[frame_pos++ & 0x3FFF] = (byte)v;
}
else
{
int offset = bits.GetBits (14);
int count = bits.GetBits (4) + 3;
while (count --> 0)
{
byte v = frame[offset++ & 0x3FFF];
output[dst++] = frame[frame_pos++ & 0x3FFF] = v;
}
}
}
}
}
int PrepareBmpHeader (IBinaryStream input, byte[] output)
{
input.ReadInt32();
uint h1 = ~input.ReadUInt32();
uint h2 = ~input.ReadUInt32();
uint h3 = ~input.ReadUInt32();
uint width = Binary.BigEndian ((ushort)h1);
uint height = Binary.BigEndian ((ushort)(h1 >> 16));
output[0] = (byte)'B';
output[1] = (byte)'M';
LittleEndian.Pack (output.Length, output, 2);
output[10] = 54; // offset to the body
output[14] = 40; // header size
LittleEndian.Pack (width, output, 18);
LittleEndian.Pack (height, output, 22);
output[26] = 1; // planes
output[28] = Binary.RotByteL ((byte)h2, 4); // bpp
LittleEndian.Pack (Binary.RotL (h3, 16), output, 34);
LittleEndian.Pack (0xB12, output, 38);
LittleEndian.Pack (0xB12, output, 42);
LittleEndian.Pack ((uint)Binary.RotByteL ((byte)(h2 >> 16), 4), output, 46);
LittleEndian.Pack ((uint)Binary.RotByteL ((byte)(h2 >> 24), 4), output, 50);
return 54;
}
}
}