mirror of
https://github.com/crskycode/GARbro.git
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659 lines
23 KiB
C#
659 lines
23 KiB
C#
//! \file ArcPSB.cs
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//! \date Thu Mar 24 01:40:57 2016
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//! \brief E-mote engine image container.
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//
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// Copyright (C) 2016 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;
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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.Text;
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using System.Windows.Media;
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using GameRes.Utility;
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namespace GameRes.Formats.Emote
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{
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internal class TexEntry : Entry
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{
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public string TexType;
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public int Width;
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public int Height;
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public int TruncatedWidth;
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public int TruncatedHeight;
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}
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[Serializable]
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public class PsbScheme : ResourceScheme
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{
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public uint[] KnownKeys;
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}
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[Export(typeof(ArchiveFormat))]
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public class PsbOpener : ArchiveFormat
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{
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public override string Tag { get { return "PSB/EMOTE"; } }
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public override string Description { get { return "E-mote engine texture container"; } }
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public override uint Signature { get { return 0x425350; } } // 'PSB'
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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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static uint[] KnownKeys = new uint[] { 970396437u };
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public PsbOpener ()
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{
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Extensions = new string[] { "psb" };
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}
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public override ArcFile TryOpen (ArcView file)
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{
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using (var input = file.CreateStream())
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using (var reader = new PsbReader (input))
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{
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foreach (var key in KnownKeys)
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{
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if (reader.Parse (key))
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{
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var dir = reader.GetTextures();
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if (null == dir || 0 == dir.Count)
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return null;
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else
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return new ArcFile (file, this, dir);
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}
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if (!reader.IsEncrypted)
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break;
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}
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return null;
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}
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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 tex = entry as TexEntry;
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if (null == tex)
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return base.OpenEntry (arc, entry);
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byte[] header;
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using (var mem = new MemoryStream())
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using (var writer = new BinaryWriter (mem))
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{
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writer.Write ((uint)0x81C3D2D1); // 'PSB' ^ 0x81818181
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writer.Write ((int)0);
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writer.Write (tex.Width);
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writer.Write (tex.Height);
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writer.Write (tex.TruncatedWidth);
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writer.Write (tex.TruncatedHeight);
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writer.Write (tex.TexType);
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writer.BaseStream.Position = 4;
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writer.Write ((int)writer.BaseStream.Length);
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header = mem.ToArray();
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}
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var input = arc.File.CreateStream (entry.Offset, entry.Size);
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return new PrefixStream (header, input);
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}
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public override ResourceScheme Scheme
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{
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get { return new PsbScheme { KnownKeys = KnownKeys }; }
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set { KnownKeys = ((PsbScheme)value).KnownKeys; }
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}
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}
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/// <summary>
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/// PSB container deserialization.
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/// </summary>
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internal sealed class PsbReader : IDisposable
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{
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BinaryReader m_input;
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public PsbReader (Stream input)
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{
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m_input = new ArcView.Reader (input);
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}
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public int Version { get { return m_version; } }
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public bool IsEncrypted { get { return 0 != (m_flags & 3); } }
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public int DataOffset { get { return m_chunk_data; } }
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public T GetRootKey<T> (string key)
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{
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int obj_offset;
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if (!GetKey (key, m_root, out obj_offset))
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return default(T);
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return (T)GetObject (obj_offset);
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}
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int m_version;
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int m_flags;
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uint[] m_key = new uint[6];
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Dictionary<int, string> m_name_map;
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public bool Parse (uint key)
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{
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m_key[0] = 0x075BCD15;
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m_key[1] = 0x159A55E5;
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m_key[2] = 0x1F123BB5;
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m_key[3] = key;
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m_key[4] = 0;
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m_key[5] = 0;
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if (!ReadHeader())
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return false;
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if (Version < 2)
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throw new NotSupportedException ("Not supported PSB version");
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m_name_map = ReadNames();
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#if DEBUG
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var dict = GetDict (m_root); // returns all metadata in a single dictionary
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#endif
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return true;
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}
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public List<Entry> GetTextures ()
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{
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var source = GetRootKey<IDictionary> ("source");
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if (null == source || 0 == source.Count)
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return null;
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var dir = new List<Entry> (source.Count);
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foreach (DictionaryEntry item in source)
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{
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var item_value = item.Value as IDictionary;
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if (null == item_value)
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continue;
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var texture = item_value["texture"] as IDictionary;
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if (null == texture)
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continue;
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var pixel = texture["pixel"] as EmChunk;
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if (null == pixel)
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continue;
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var entry = new TexEntry {
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Name = item.Key.ToString(),
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Type = "image",
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Offset = DataOffset + pixel.Offset,
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Size = (uint)pixel.Length,
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TexType = texture["type"].ToString(),
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Width = Convert.ToInt32 (texture["width"]),
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Height = Convert.ToInt32 (texture["height"]),
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TruncatedWidth = Convert.ToInt32 (texture["truncated_width"]),
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TruncatedHeight = Convert.ToInt32 (texture["truncated_height"]),
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};
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dir.Add (entry);
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}
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return dir;
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}
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int m_names;
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int m_strings;
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int m_strings_data;
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int m_chunk_offsets;
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int m_chunk_lengths;
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int m_chunk_data;
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int m_root;
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byte[] m_data;
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bool ReadHeader ()
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{
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m_input.BaseStream.Position = 4;
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m_version = m_input.ReadUInt16();
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m_flags = m_input.ReadUInt16();
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if (m_version < 3)
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m_flags = 2;
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var header = new byte[0x20];
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m_input.Read (header, 0, header.Length);
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if (0 != (m_flags & 1))
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Decrypt (header, 0, 0x20);
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m_names = LittleEndian.ToInt32 (header, 0x04);
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m_strings = LittleEndian.ToInt32 (header, 0x08);
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m_strings_data = LittleEndian.ToInt32 (header, 0x0C);
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m_chunk_offsets = LittleEndian.ToInt32 (header, 0x10);
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m_chunk_lengths = LittleEndian.ToInt32 (header, 0x14);
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m_chunk_data = LittleEndian.ToInt32 (header, 0x18);
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m_root = LittleEndian.ToInt32 (header, 0x1C);
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int buffer_length = (int)m_input.BaseStream.Length;
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if (!(m_names >= 0x28 && m_names < m_chunk_data
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&& m_strings >= 0x28 && m_strings < m_chunk_data
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&& m_strings_data >= 0x28 && m_strings_data < m_chunk_data
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&& m_chunk_offsets >= 0x28 && m_chunk_offsets < m_chunk_data
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&& m_chunk_lengths >= 0x28 && m_chunk_lengths < m_chunk_data
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&& m_chunk_data >= 0x28 && m_chunk_data < buffer_length
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&& m_root >= 0x28 && m_root < m_chunk_data))
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return false;
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if (null == m_data || m_data.Length < m_chunk_data)
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m_data = new byte[m_chunk_data];
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int data_pos = (int)m_input.BaseStream.Position;
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m_input.Read (m_data, data_pos, m_chunk_data-data_pos);
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if (0 != (m_flags & 2))
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Decrypt (m_data, m_names, m_chunk_offsets-m_names);
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// root object is a dictionary
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return 0x21 == m_data[m_root];
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}
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bool GetKey (string name, int dict_offset, out int value_offset)
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{
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value_offset = 0;
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int offset;
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if (!GetOffset (name, out offset))
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return false;
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var keys = GetArray (++dict_offset);
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if (0 == keys.Count)
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return false;
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int upper_bound = keys.Count;
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int lower_bound = 0;
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int key_index = 0;
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while (lower_bound < upper_bound)
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{
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key_index = (upper_bound + lower_bound) >> 1;
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int key = GetArrayElem (keys, key_index);
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if (key == offset)
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break;
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if (key >= offset)
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upper_bound = (upper_bound + lower_bound) >> 1;
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else
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lower_bound = key_index + 1;
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}
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if (lower_bound >= upper_bound)
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return false;
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var values = GetArray (dict_offset + keys.ArraySize);
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int data_offset = GetArrayElem (values, key_index);
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value_offset = dict_offset + keys.ArraySize + values.ArraySize + data_offset;
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return true;
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}
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bool GetOffset (string name, out int offset)
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{
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// FIXME works for ASCII names only.
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var nm1 = GetArray (m_names);
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var nm2 = GetArray (m_names + nm1.ArraySize);
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int i = 0;
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for (int name_idx = 0; ; ++name_idx)
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{
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char symbol = name_idx < name.Length ? name[name_idx] : '\0';
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int prev_i = i;
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i = symbol + GetArrayElem (nm1, i);
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if (i >= nm1.Count || GetArrayElem (nm2, i) != prev_i)
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break;
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if (name_idx >= name.Length)
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{
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offset = GetArrayElem (nm1, i);
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return true;
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}
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}
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offset = 0;
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return false;
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}
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Dictionary<int, string> ReadNames ()
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{
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// this implementation is utterly inefficient. FIXME
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var lookup = new Dictionary<int, byte[]>();
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var next_lookup = new Dictionary<int, byte[]>();
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var dict = new Dictionary<int, string>();
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var nm1 = GetArray (m_names);
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var nm2 = GetArray (m_names + nm1.ArraySize);
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lookup[0] = new byte[0];
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while (lookup.Count > 0)
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{
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foreach (var item in lookup)
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{
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int first = GetArrayElem (nm1, item.Key);
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for (int i = 0; i < 256; ++i)
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{
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if (GetArrayElem (nm2, i + first) == item.Key)
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{
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if (0 == i)
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dict[GetArrayElem (nm1, i + first)] = Encoding.UTF8.GetString (item.Value);
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else
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next_lookup[i+first] = ArrayAppend (item.Value, (byte)i);
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}
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}
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}
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var tmp = lookup;
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lookup = next_lookup;
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next_lookup = tmp;
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next_lookup.Clear();
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}
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return dict;
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}
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static byte[] ArrayAppend (byte[] array, byte n)
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{
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var new_array = new byte[array.Length+1];
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Buffer.BlockCopy (array, 0, new_array, 0, array.Length);
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new_array[array.Length] = n;
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return new_array;
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}
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EmArray GetArray (int offset)
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{
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int data_offset = m_data[offset] - 10;
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var array = new EmArray {
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Count = GetInteger (offset, 0xC),
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ElemSize = m_data[offset + data_offset - 1] - 12,
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DataOffset = offset + data_offset,
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};
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array.ArraySize = array.Count * array.ElemSize + data_offset;
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return array;
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}
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int GetArrayElem (EmArray a1, int index)
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{
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int offset = index * a1.ElemSize;
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switch (a1.ElemSize)
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{
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case 1:
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return m_data[a1.DataOffset + offset];
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case 2:
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return LittleEndian.ToUInt16 (m_data, a1.DataOffset + offset);
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case 3:
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return LittleEndian.ToUInt16 (m_data, a1.DataOffset + offset) | m_data[a1.DataOffset + offset + 2] << 16;
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case 4:
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return LittleEndian.ToInt32 (m_data, a1.DataOffset + offset);
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default:
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throw new InvalidFormatException ("Invalid PSB array structure");
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}
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}
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object GetObject (int offset)
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{
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switch (m_data[offset])
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{
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case 1: return null;
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case 2: return true;
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case 3: return false;
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case 4:
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case 5:
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case 6:
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case 7:
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case 8: return GetInteger (offset, 4);
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case 9:
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case 0x0A:
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case 0x0B:
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case 0x0C: return GetLong (offset);
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case 0x15:
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case 0x16:
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case 0x17:
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case 0x18: return GetString (offset);
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case 0x19:
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case 0x1A:
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case 0x1B:
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case 0x1C: return GetChunk (offset);
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case 0x1D:
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case 0x1E: return GetFloat (offset);
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case 0x1F: return GetDouble (offset);
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case 0x20: return GetList (offset);
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case 0x21: return GetDict (offset);
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default:
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throw new InvalidFormatException (string.Format ("Unknown serialized object type 0x{0:X2}", m_data[offset]));
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}
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}
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int GetInteger (int offset, int base_type)
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{
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switch (m_data[offset] - base_type)
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{
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case 1: return m_data[offset+1];
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case 2: return LittleEndian.ToUInt16 (m_data, offset+1);
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case 3: return LittleEndian.ToUInt16 (m_data, offset+1) | m_data[offset+3] << 16;
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case 4: return LittleEndian.ToInt32 (m_data, offset+1);
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default: return 0;
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}
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}
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float GetFloat (int offset)
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{
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if (0x1E == m_data[offset])
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return BitConverter.ToSingle (m_data, offset+1); // FIXME endianness
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else
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return 0.0f;
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}
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double GetDouble (int offset)
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{
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if (0x1F == m_data[offset])
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return BitConverter.ToDouble (m_data, offset+1); // FIXME endianness
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else
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return 0.0;
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}
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long GetLong (int offset)
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{
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switch (m_data[offset])
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{
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case 0x09: return LittleEndian.ToUInt32 (m_data, offset+1) | (long)(sbyte)m_data[offset+5] << 32;
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case 0x0A: return LittleEndian.ToUInt32 (m_data, offset+1)
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| (long)LittleEndian.ToInt16 (m_data, offset+5) << 32;
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case 0x0B: return LittleEndian.ToUInt32 (m_data, offset+1)
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| (long)LittleEndian.ToUInt16 (m_data, offset+5) << 32
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| (long)(sbyte)m_data[offset+6] << 48;
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case 0x0C: return LittleEndian.ToInt64 (m_data, offset+1);
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default: return 0L;
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}
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}
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string GetString (int obj_offset)
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{
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int index = GetInteger (obj_offset, 0x14);
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var array = GetArray (m_strings);
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int data_offset = m_strings_data + GetArrayElem (array, index);
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return Binary.GetCString (m_data, data_offset, m_data.Length-data_offset, Encoding.UTF8);
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}
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IList GetList (int offset)
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{
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var array = GetArray (++offset);
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var list = new ArrayList (array.Count);
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for (int i = 0; i < array.Count; ++i)
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{
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int item_offset = offset + array.ArraySize + GetArrayElem (array, i);
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var item = GetObject (item_offset);
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list.Add (item);
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}
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return list;
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}
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IDictionary GetDict (int offset)
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{
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var keys = GetArray (++offset);
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if (0 == keys.Count)
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return new Dictionary<string, object>();
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var values = GetArray (offset + keys.ArraySize);
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var dict = new Dictionary<string, object> (keys.Count);
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for (int i = 0; i < keys.Count; ++i)
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{
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int key = GetArrayElem (keys, i);
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var value_offset = GetArrayElem (values, i);
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string key_name = m_name_map[key];
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dict[key_name] = GetObject (offset + value_offset + keys.ArraySize + values.ArraySize);
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}
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return dict;
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}
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EmChunk GetChunk (int offset)
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{
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var chunk_index = GetInteger (offset, 0x18);
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var chunks = GetArray (m_chunk_offsets);
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if (chunk_index >= chunks.Count)
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throw new InvalidFormatException ("Invalid chunk index");
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var lengths = GetArray (m_chunk_lengths);
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return new EmChunk {
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Offset = GetArrayElem (chunks, chunk_index),
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Length = GetArrayElem (lengths, chunk_index),
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};
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}
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void Decrypt (byte[] data, int offset, int length)
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{
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for (int i = 0; i < length; ++i)
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{
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if (0 == m_key[4])
|
|
{
|
|
var v5 = m_key[3];
|
|
var v6 = m_key[0] ^ (m_key[0] << 11);
|
|
m_key[0] = m_key[1];
|
|
m_key[1] = m_key[2];
|
|
var eax = v6 ^ v5 ^ ((v6 ^ (v5 >> 11)) >> 8);
|
|
m_key[2] = v5;
|
|
m_key[3] = eax;
|
|
m_key[4] = eax;
|
|
}
|
|
data[offset+i] ^= (byte)m_key[4];
|
|
m_key[4] >>= 8;
|
|
}
|
|
}
|
|
|
|
internal class EmArray
|
|
{
|
|
public int ArraySize;
|
|
public int Count;
|
|
public int ElemSize;
|
|
public int DataOffset;
|
|
}
|
|
|
|
internal class EmChunk
|
|
{
|
|
public int Offset;
|
|
public int Length;
|
|
}
|
|
|
|
#region IDisposable Members
|
|
bool _disposed = false;
|
|
public void Dispose ()
|
|
{
|
|
if (!_disposed)
|
|
{
|
|
m_input.Dispose();
|
|
_disposed = true;
|
|
}
|
|
}
|
|
#endregion
|
|
}
|
|
|
|
internal class PsbTexMetaData : ImageMetaData
|
|
{
|
|
public string TexType;
|
|
public int FullWidth;
|
|
public int FullHeight;
|
|
public int DataOffset;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Artificial format representing PSB texture.
|
|
/// </summary>
|
|
[Export(typeof(ImageFormat))]
|
|
internal class PsbTextureFormat : ImageFormat
|
|
{
|
|
public override string Tag { get { return "PSB/TEXTURE"; } }
|
|
public override string Description { get { return "PSB texture format"; } }
|
|
public override uint Signature { get { return 0x81C3D2D1; } } // 'PSB' ^ 0x81818181
|
|
|
|
public PsbTextureFormat ()
|
|
{
|
|
Extensions = new string[0];
|
|
}
|
|
|
|
public override ImageMetaData ReadMetaData (IBinaryStream stream)
|
|
{
|
|
stream.Position = 4;
|
|
using (var reader = new BinaryReader (stream.AsStream, Encoding.UTF8, true))
|
|
{
|
|
var info = new PsbTexMetaData { BPP = 32 };
|
|
info.DataOffset = reader.ReadInt32();
|
|
info.FullWidth = reader.ReadInt32();
|
|
info.FullHeight = reader.ReadInt32();
|
|
info.Width = reader.ReadUInt32();
|
|
info.Height = reader.ReadUInt32();
|
|
info.TexType = reader.ReadString();
|
|
return info;
|
|
}
|
|
}
|
|
|
|
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
|
|
{
|
|
var meta = (PsbTexMetaData)info;
|
|
var pixels = new byte[meta.Width * meta.Height * 4];
|
|
if ("RGBA8" == meta.TexType)
|
|
ReadRgba8 (stream.AsStream, meta, pixels);
|
|
else if ("RGBA4444" == meta.TexType)
|
|
ReadRgba4444 (stream.AsStream, meta, pixels);
|
|
else
|
|
throw new NotImplementedException (string.Format ("PSB texture format '{0}' not implemented", meta.TexType));
|
|
return ImageData.Create (info, PixelFormats.Bgra32, null, pixels);
|
|
}
|
|
|
|
void ReadRgba8 (Stream input, PsbTexMetaData meta, byte[] output)
|
|
{
|
|
int dst_stride = (int)meta.Width * 4;
|
|
long next_row = meta.DataOffset;
|
|
int src_stride = meta.FullWidth * 4;
|
|
int dst = 0;
|
|
for (uint i = 0; i < meta.Height; ++i)
|
|
{
|
|
input.Position = next_row;
|
|
input.Read (output, dst, dst_stride);
|
|
dst += dst_stride;
|
|
next_row += src_stride;
|
|
}
|
|
}
|
|
|
|
void ReadRgba4444 (Stream input, PsbTexMetaData meta, byte[] output)
|
|
{
|
|
int dst_stride = (int)meta.Width * 4;
|
|
int src_stride = meta.FullWidth * 2;
|
|
int dst = 0;
|
|
var row = new byte[src_stride];
|
|
input.Position = meta.DataOffset;
|
|
for (uint i = 0; i < meta.Height; ++i)
|
|
{
|
|
input.Read (row, 0, src_stride);
|
|
int src = 0;
|
|
for (int x = 0; x < dst_stride; x += 4)
|
|
{
|
|
uint p = LittleEndian.ToUInt16 (row, src);
|
|
src += 2;
|
|
output[dst++] = (byte)((p & 0x000Fu) * 0xFFu / 0x000Fu);
|
|
output[dst++] = (byte)((p & 0x00F0u) * 0xFFu / 0x00F0u);
|
|
output[dst++] = (byte)((p & 0x0F00u) * 0xFFu / 0x0F00u);
|
|
output[dst++] = (byte)((p & 0xF000u) * 0xFFu / 0xF000u);
|
|
}
|
|
}
|
|
}
|
|
|
|
public override void Write (Stream file, ImageData image)
|
|
{
|
|
throw new NotSupportedException ("PsbTextureFormat.Write not supported");
|
|
}
|
|
}
|
|
}
|