mirror of
https://github.com/crskycode/GARbro.git
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230 lines
8.8 KiB
C#
230 lines
8.8 KiB
C#
//! \file ArcPulltop.cs
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//! \date Sun Nov 29 04:43:52 2015
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//! \brief Pulltop archives implementation.
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//
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// Copyright (C) 2015 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 GameRes.Utility;
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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 GameRes.Formats.Strings;
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using GameRes.Compression;
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namespace GameRes.Formats.Will
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{
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[Export(typeof(ArchiveFormat))]
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public class Arc2Opener : ArchiveFormat
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{
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public override string Tag { get { return "ARC/WillV2"; } }
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public override string Description { get { return "Will Co. game engine resource archive v2"; } }
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public override uint Signature { get { return 0; } }
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public override bool IsHierarchic { get { return false; } }
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public override bool CanWrite { get { return true; } }
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public Arc2Opener ()
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{
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Extensions = new string[] { "arc", "ar2" };
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ContainedFormats = new[] { "PNG", "PNA", "PSB", "OGG", "SCR" };
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}
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public override ArcFile TryOpen (ArcView file)
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{
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int count = file.View.ReadInt32 (0);
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if (!IsSaneCount (count))
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return null;
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uint index_offset = 8;
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uint index_size = file.View.ReadUInt32 (4);
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uint base_offset = index_offset + index_size;
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if (index_size > base_offset || base_offset >= file.MaxOffset)
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return null;
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file.View.Reserve (index_offset, index_size);
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var dir = new List<Entry> (count);
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var name_buffer = new StringBuilder (0x40);
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for (int i = 0; i < count; ++i)
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{
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if (index_offset >= base_offset)
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return null;
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uint size = file.View.ReadUInt32 (index_offset);
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long offset = (long)base_offset + file.View.ReadUInt32 (index_offset+4);
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index_offset += 8;
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name_buffer.Clear();
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for (;;)
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{
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if (index_offset >= base_offset)
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return null;
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char c = (char)file.View.ReadUInt16 (index_offset);
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index_offset += 2;
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if (0 == c)
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break;
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name_buffer.Append (c);
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}
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if (0 == name_buffer.Length)
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return null;
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var name = name_buffer.ToString();
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var entry = Create<Entry> (name);
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entry.Offset = offset;
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entry.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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}
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if (index_offset != base_offset)
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return null;
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return new ArcFile (file, this, dir);
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}
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public override Stream OpenEntry (ArcFile arc, Entry entry)
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{
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if (!IsScriptFile (entry.Name) || Path.GetFileName (arc.File.Name).Contains ("Model"))
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{
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if (entry.Name.HasExtension (".PSP"))
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return OpenPsp (arc, entry);
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return base.OpenEntry (arc, entry);
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}
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var data = arc.File.View.ReadBytes (entry.Offset, entry.Size);
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for (int i = 0; i < data.Length; ++i)
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{
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data[i] = Binary.RotByteR (data[i], 2);
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}
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return new BinMemoryStream (data, entry.Name);
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}
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Stream OpenPsp (ArcFile arc, Entry entry)
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{
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using (var input = arc.File.CreateStream (entry.Offset, entry.Size))
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{
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int unpacked_size = input.ReadInt32();
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var output = new byte[unpacked_size];
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int dst = 0;
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var frame = new byte[0x1000];
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int frame_pos = 1;
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while (dst < unpacked_size)
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{
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int ctl = input.ReadByte();
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for (int bit = 1; dst < unpacked_size && bit != 0x100; bit <<= 1)
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{
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if (0 != (ctl & bit))
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{
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byte b = input.ReadUInt8();
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output[dst++] = frame[frame_pos++ & 0xFFF] = b;
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}
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else
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{
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int hi = input.ReadByte();
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int lo = input.ReadByte();
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int offset = hi << 4 | lo >> 4;
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for (int count = 2 + (lo & 0xF); count != 0; --count)
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{
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byte v = frame[offset++ & 0xFFF];
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output[dst++] = frame[frame_pos++ & 0xFFF] = v;
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}
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}
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}
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}
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return new BinMemoryStream (output, entry.Name);
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}
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}
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static bool IsScriptFile (string name)
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{
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return name.HasAnyOfExtensions ("ws2", "json");
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}
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public override void Create (Stream output, IEnumerable<Entry> list, ResourceOptions options,
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EntryCallback callback)
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{
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int file_count = list.Count();
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var names = new List<byte[]> (file_count);
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int index_size = 0;
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foreach (var entry in list)
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{
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var utf16_name = Encoding.Unicode.GetBytes (Path.GetFileName (entry.Name));
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names.Add (utf16_name);
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index_size += 8 + utf16_name.Length + 2;
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}
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int callback_count = 0;
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uint current_offset = 0;
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output.Position = 8 + index_size;
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foreach (var entry in list)
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{
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if (null != callback)
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callback (callback_count++, entry, arcStrings.MsgAddingFile);
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entry.Offset = current_offset;
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using (var input = File.OpenRead (entry.Name))
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{
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var size = input.Length;
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if (size > uint.MaxValue || current_offset + size > uint.MaxValue)
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throw new FileSizeException();
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if (IsScriptFile (entry.Name))
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CopyScript (input, output);
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else
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input.CopyTo (output);
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current_offset += (uint)size;
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entry.Size = (uint)size;
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}
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}
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if (null != callback)
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callback (callback_count++, null, arcStrings.MsgWritingIndex);
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output.Position = 0;
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using (var writer = new BinaryWriter (output, Encoding.Unicode, true))
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{
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writer.Write (file_count);
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writer.Write (index_size);
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int i = 0;
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foreach (var entry in list)
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{
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writer.Write (entry.Size);
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writer.Write ((uint)entry.Offset);
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writer.Write (names[i++]);
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writer.Write ((short)0);
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}
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}
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}
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void CopyScript (Stream input, Stream output)
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{
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var buffer = new byte[81920];
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for (;;)
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{
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int read = input.Read (buffer, 0, buffer.Length);
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if (0 == read)
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break;
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for (int i = 0; i < read; ++i)
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{
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buffer[i] = Binary.RotByteL (buffer[i], 2);
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}
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output.Write (buffer, 0, read);
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}
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}
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}
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[Export(typeof(ResourceAlias))]
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[ExportMetadata("Extension", "PSP")]
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[ExportMetadata("Target", "PSB")]
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public class PspFormat : ResourceAlias { }
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}
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