mirror of
https://github.com/crskycode/GARbro.git
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261 lines
9.5 KiB
C#
261 lines
9.5 KiB
C#
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//! \file ArcPCK.cs
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//! \date 2017 Nov 16
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//! \brief TamamoSystem resource archive.
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//
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// Copyright (C) 2017 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Windows;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using GameRes.Cryptography;
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using GameRes.Formats.Properties;
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using GameRes.Formats.Strings;
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namespace GameRes.Formats.Tamamo
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{
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[Serializable]
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public class PckScheme : ResourceScheme
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{
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public Dictionary<string, byte[]> KnownKeys;
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}
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public class PckOptions : ResourceOptions
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{
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public byte[] Key { get; set; }
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}
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internal class PckArchive : ArcFile
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{
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public readonly Blowfish Encryption;
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public PckArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, byte[] key)
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: base (arc, impl, dir)
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{
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Encryption = new Blowfish (key);
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}
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}
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[Export(typeof(ArchiveFormat))]
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public class PckOpener : ArchiveFormat
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{
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public override string Tag { get { return "PCK/TAMAMO"; } }
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public override string Description { get { return "TamamoSystem resource archive"; } }
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public override uint Signature { get { return 0x4B434150; } } // 'PACK'
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public override bool IsHierarchic { get { return false; } }
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public override bool CanWrite { get { return false; } }
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public override ArcFile TryOpen (ArcView file)
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{
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if (!file.View.AsciiEqual (4, "_FILE001"))
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return null;
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int count = file.View.ReadInt32 (0xC);
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if (!IsSaneCount (count))
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return null;
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var key = QueryKey (file.Name);
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if (null == key)
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return null;
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uint index_length = file.View.ReadUInt32 (0x10);
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var index = file.View.ReadBytes (0x14, index_length);
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if (index.Length != index_length)
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return null;
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var bf = new Blowfish (key);
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bf.Decipher (index, index.Length);
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long data_offset = 0x14 + index_length;
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int pos = 0;
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var dir = new List<Entry> (count);
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for (int i = 0; i < count; ++i)
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{
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uint size = index.ToUInt32 (pos);
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pos += 4;
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int name_end = Array.IndexOf<byte> (index, 0, pos);
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if (-1 == name_end)
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return null;
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var name = Encodings.cp932.GetString (index, pos, name_end-pos);
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pos = name_end+1;
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uint enc_size = index.ToUInt32 (pos);
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pos += 4;
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var entry = FormatCatalog.Instance.Create<PackedEntry> (name);
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entry.Offset = data_offset;
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entry.Size = enc_size;
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entry.UnpackedSize = size;
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entry.IsPacked = enc_size != size;
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if (!entry.CheckPlacement (file.MaxOffset))
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return null;
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dir.Add (entry);
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data_offset += enc_size + 1;
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}
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return new PckArchive (file, this, dir, key);
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}
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public override Stream OpenEntry (ArcFile arc, Entry entry)
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{
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var parc = (PckArchive)arc;
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var pent = (PackedEntry)entry;
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byte data_type = arc.File.View.ReadByte (pent.Offset);
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Stream input = arc.File.CreateStream (pent.Offset+1, pent.Size);
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if (data_type != 0)
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{
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input = new InputCryptoStream (input, parc.Encryption.CreateDecryptor());
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if (data_type != 3)
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{
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input = new LimitStream (input, pent.UnpackedSize);
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}
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else
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{
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// input = new Bzip2InputStream (input); // requires #ZipLib/DonNetZip
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}
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}
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return input;
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}
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public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
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{
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var decoder = base.OpenImage (arc, entry);
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// if (!entry.Name.StartsWith ("ev")) // XXX
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// return decoder;
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if (1024 != decoder.Info.Width || 512 != decoder.Info.Height)
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return decoder;
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var source = decoder.Image.Bitmap;
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if (PixelFormats.Bgra32 == source.Format)
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return decoder;
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using (decoder)
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{
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var ev_bitmap = new WriteableBitmap (800, 600, ImageData.DefaultDpiX, ImageData.DefaultDpiY,
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source.Format, source.Palette);
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var rect = new Int32Rect (0, 0, 800, 512);
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int buffer_size = ev_bitmap.BackBufferStride * ev_bitmap.PixelHeight;
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ev_bitmap.Lock();
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source.CopyPixels (rect, ev_bitmap.BackBuffer, buffer_size, ev_bitmap.BackBufferStride);
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ev_bitmap.AddDirtyRect (rect);
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ev_bitmap.Unlock();
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CopyRegion (source, new Int32Rect (800, 0, 88, 400), ev_bitmap, 0, 512);
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CopyRegion (source, new Int32Rect (888, 0, 88, 400), ev_bitmap, 400, 512);
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return new BitmapSourceDecoder (ev_bitmap);
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}
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}
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void CopyRegion (BitmapSource source, Int32Rect rect, WriteableBitmap target, int dst_x, int dst_y)
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{
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int bpp = source.Format.BitsPerPixel / 8;
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int width = rect.Width;
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int height = rect.Height;
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int src_stride = width * bpp;
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var src_pixels = new byte[src_stride * height];
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source.CopyPixels (rect, src_pixels, src_stride, 0);
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var transformed = new byte[src_pixels.Length];
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int dst_stride = height * bpp;
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for (int y = 0; y < height; ++y)
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{
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int src = y * src_stride;
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int dst = (width - 1) * dst_stride + y * bpp;
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for (int x = 0; x < width; ++x)
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{
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for (int p = 0; p < bpp; ++p)
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{
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transformed[dst+p] = src_pixels[src+p];
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}
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src += bpp;
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dst -= dst_stride;
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}
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}
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var target_rect = new Int32Rect (0, 0, height, width);
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target.WritePixels (target_rect, transformed, dst_stride, dst_x, dst_y);
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}
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PckScheme DefaultScheme = new PckScheme {
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KnownKeys = new Dictionary<string, byte[]>()
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};
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public Dictionary<string, byte[]> KnownKeys { get { return DefaultScheme.KnownKeys; } }
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public override ResourceScheme Scheme
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{
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get { return DefaultScheme; }
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set { DefaultScheme = (PckScheme)value; }
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}
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public override object GetAccessWidget ()
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{
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return new GUI.WidgetPCK (KnownKeys.Keys.OrderBy (x => x));
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}
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public override ResourceOptions GetDefaultOptions ()
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{
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return new PckOptions {
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Key = GetKeyForTitle (Settings.Default.PCKTitle)
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};
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}
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byte[] QueryKey (string arc_name)
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{
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if (0 == KnownKeys.Count)
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return null;
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if (1 == KnownKeys.Count)
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return KnownKeys.Values.First();
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var title = FormatCatalog.Instance.LookupGame (arc_name);
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var key = GetKeyForTitle (title);
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if (key != null)
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return key;
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var options = Query<PckOptions> (arcStrings.ArcEncryptedNotice);
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return options.Key;
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}
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byte[] GetKeyForTitle (string title)
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{
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byte[] key = null;
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if (!string.IsNullOrEmpty (title))
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KnownKeys.TryGetValue (title, out key);
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return key;
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}
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}
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internal class BitmapSourceDecoder : IImageDecoder
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{
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public Stream Source { get { return null; } }
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public ImageFormat SourceFormat { get { return null; } }
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public ImageMetaData Info { get; private set; }
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public ImageData Image { get; private set; }
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public BitmapSourceDecoder (BitmapSource bitmap)
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{
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Info = new ImageMetaData {
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Width = (uint)bitmap.PixelWidth,
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Height = (uint)bitmap.PixelHeight,
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BPP = bitmap.Format.BitsPerPixel,
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};
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Image = new ImageData (bitmap);
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}
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public void Dispose ()
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{
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}
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}
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}
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