GARbro-mirror/ArcFormats/Amaterasu/ArcAMI.cs

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//! \file ArcAMI.cs
//! \date Thu Jul 03 09:40:40 2014
//! \brief Muv-Luv Amaterasu Translation archive.
//
// Copyright (C) 2014 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;
using System.IO;
using System.Text;
using System.Linq;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.Globalization;
using GameRes.Compression;
using GameRes.Formats.Strings;
namespace GameRes.Formats.Amaterasu
{
internal class AmiEntry : PackedEntry
{
public uint Id;
private Lazy<string> m_ext;
private Lazy<string> m_name;
private Lazy<string> m_type;
public override string Name
{
get { return m_name.Value; }
set { m_name = new Lazy<string> (() => value); }
}
public override string Type
{
get { return m_type.Value; }
set { m_type = new Lazy<string> (() => value); }
}
public AmiEntry (uint id, Func<string> ext_factory)
{
Id = id;
m_ext = new Lazy<string> (ext_factory);
m_name = new Lazy<string> (GetName);
m_type = new Lazy<string> (GetEntryType);
}
private string GetName ()
{
return string.Format ("{0:x8}.{1}", Id, m_ext.Value);
}
private string GetEntryType ()
{
var ext = m_ext.Value;
if ("grp" == ext)
return "image";
if ("scr" == ext)
return "script";
return "";
}
}
internal class AmiOptions : ResourceOptions
{
public bool UseBaseArchive;
public string BaseArchive;
}
[Export(typeof(ArchiveFormat))]
public class AmiOpener : ArchiveFormat
{
public override string Tag { get { return "AMI"; } }
public override string Description { get { return Strings.arcStrings.AMIDescription; } }
public override uint Signature { get { return 0x00494D41; } } // 'AMI'
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return true; } }
public AmiOpener ()
{
Extensions = new string[] { "ami", "amr" };
}
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (4);
if (count <= 0)
return null;
uint base_offset = file.View.ReadUInt32 (8);
long max_offset = file.MaxOffset;
if (base_offset >= max_offset)
return null;
uint cur_offset = 16;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
if (cur_offset+16 > base_offset)
return null;
uint id = file.View.ReadUInt32 (cur_offset);
uint offset = file.View.ReadUInt32 (cur_offset+4);
uint size = file.View.ReadUInt32 (cur_offset+8);
uint packed_size = file.View.ReadUInt32 (cur_offset+12);
var entry = new AmiEntry (id, () => {
uint signature = file.View.ReadUInt32 (offset);
if (0x00524353 == signature)
return "scr";
else if (0 != packed_size || 0x00505247 == signature)
return "grp";
else
return "dat";
});
entry.Offset = offset;
entry.UnpackedSize = size;
entry.IsPacked = 0 != packed_size;
entry.Size = entry.IsPacked ? packed_size : size;
if (!entry.CheckPlacement (max_offset))
return null;
dir.Add (entry);
cur_offset += 16;
}
return new ArcFile (file, this, dir);
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
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var input = base.OpenEntry (arc, entry);
var packed_entry = entry as AmiEntry;
if (null == packed_entry || !packed_entry.IsPacked)
return input;
else
return new ZLibStream (input, CompressionMode.Decompress);
}
public override void Create (Stream output, IEnumerable<Entry> list, ResourceOptions options,
EntryCallback callback)
{
ArcFile base_archive = null;
var ami_options = GetOptions<AmiOptions> (options);
if (null != ami_options && ami_options.UseBaseArchive && !string.IsNullOrEmpty (ami_options.BaseArchive))
{
var base_file = new ArcView (ami_options.BaseArchive);
try
{
if (base_file.View.ReadUInt32(0) == Signature)
base_archive = TryOpen (base_file);
if (null == base_archive)
throw new InvalidFormatException (string.Format ("{0}: base archive could not be read",
Path.GetFileName (ami_options.BaseArchive)));
base_file = null;
}
finally
{
if (null != base_file)
base_file.Dispose();
}
}
try
{
var file_table = new SortedDictionary<uint, PackedEntry>();
if (null != base_archive)
{
foreach (AmiEntry entry in base_archive.Dir)
file_table[entry.Id] = entry;
}
int update_count = UpdateFileTable (file_table, list);
if (0 == update_count)
throw new InvalidFormatException (arcStrings.AMINoFiles);
uint file_count = (uint)file_table.Count;
if (null != callback)
callback ((int)file_count+1, null, null);
int callback_count = 0;
long start_offset = output.Position;
uint data_offset = file_count * 16 + 16;
output.Seek (data_offset, SeekOrigin.Current);
foreach (var entry in file_table)
{
if (null != callback)
callback (callback_count++, entry.Value, arcStrings.MsgAddingFile);
long current_offset = output.Position;
if (current_offset > uint.MaxValue)
throw new FileSizeException();
if (entry.Value is AmiEntry)
CopyAmiEntry (base_archive, entry.Value, output);
else
entry.Value.Size = WriteAmiEntry (entry.Value, output);
entry.Value.Offset = (uint)current_offset;
}
if (null != callback)
callback (callback_count++, null, arcStrings.MsgWritingIndex);
output.Position = start_offset;
using (var header = new BinaryWriter (output, Encoding.ASCII, true))
{
header.Write (Signature);
header.Write (file_count);
header.Write (data_offset);
header.Write ((uint)0);
foreach (var entry in file_table)
{
header.Write (entry.Key);
header.Write ((uint)entry.Value.Offset);
header.Write ((uint)entry.Value.UnpackedSize);
header.Write ((uint)entry.Value.Size);
}
}
}
finally
{
if (null != base_archive)
base_archive.Dispose();
}
}
int UpdateFileTable (IDictionary<uint, PackedEntry> table, IEnumerable<Entry> list)
{
int update_count = 0;
foreach (var entry in list)
{
if (entry.Type != "image" && !entry.Name.HasExtension (".scr"))
continue;
uint id;
if (!uint.TryParse (Path.GetFileNameWithoutExtension (entry.Name), NumberStyles.HexNumber,
CultureInfo.InvariantCulture, out id))
continue;
PackedEntry existing;
if (table.TryGetValue (id, out existing) && !(existing is AmiEntry))
{
var file_new = new FileInfo (entry.Name);
if (!file_new.Exists)
continue;
var file_old = new FileInfo (existing.Name);
if (file_new.LastWriteTime <= file_old.LastWriteTime)
continue;
}
table[id] = new PackedEntry
{
Name = entry.Name,
Type = entry.Type
};
++update_count;
}
return update_count;
}
void CopyAmiEntry (ArcFile base_archive, Entry entry, Stream output)
{
using (var input = base_archive.File.CreateStream (entry.Offset, entry.Size))
input.CopyTo (output);
}
uint WriteAmiEntry (PackedEntry entry, Stream output)
{
uint packed_size = 0;
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using (var input = VFS.OpenBinaryStream (entry))
{
long file_size = input.Length;
if (file_size > uint.MaxValue)
throw new FileSizeException();
entry.UnpackedSize = (uint)file_size;
if ("image" == entry.Type)
{
packed_size = WriteImageEntry (entry, input, output);
}
else
{
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input.AsStream.CopyTo (output);
}
}
return packed_size;
}
static Lazy<GrpFormat> s_grp_format = new Lazy<GrpFormat> (() =>
FormatCatalog.Instance.ImageFormats.OfType<GrpFormat>().FirstOrDefault());
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uint WriteImageEntry (PackedEntry entry, IBinaryStream input, Stream output)
{
var grp = s_grp_format.Value;
if (null == grp) // probably never happens
throw new FileFormatException ("GRP image encoder not available");
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bool is_grp = grp.Signature == input.Signature;
input.Position = 0;
var start = output.Position;
using (var zstream = new ZLibStream (output, CompressionMode.Compress, CompressionLevel.Level9, true))
{
if (is_grp)
{
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input.AsStream.CopyTo (zstream);
}
else
{
var image = ImageFormat.Read (input);
if (null == image)
throw new InvalidFormatException (string.Format (arcStrings.MsgInvalidImageFormat, entry.Name));
grp.Write (zstream, image);
entry.UnpackedSize = (uint)zstream.TotalIn;
}
}
return (uint)(output.Position - start);
}
public override ResourceOptions GetDefaultOptions ()
{
return new AmiOptions {
UseBaseArchive = Properties.Settings.Default.AMIUseBaseArchive,
BaseArchive = Properties.Settings.Default.AMIBaseArchive,
};
}
public override object GetCreationWidget ()
{
return new GUI.CreateAMIWidget();
}
}
public class AmiScriptData : ScriptData
{
public uint Id;
public uint Type;
}
[Export(typeof(ScriptFormat))]
public class ScrFormat : ScriptFormat
{
public override string Tag { get { return "SCR"; } }
public override string Description { get { return Strings.arcStrings.SCRDescription; } }
public override uint Signature { get { return 0x00524353; } }
public override ScriptData Read (string name, Stream stream)
{
if (Signature != FormatCatalog.ReadSignature (stream))
return null;
uint script_id = Convert.ToUInt32 (name, 16);
uint max_offset = (uint)Math.Min (stream.Length, 0xffffffff);
using (var file = new BinaryReader (stream, Encodings.cp932, true))
{
uint script_type = file.ReadUInt32();
var script = new AmiScriptData {
Id = script_id,
Type = script_type
};
uint count = file.ReadUInt32();
for (uint i = 0; i < count; ++i)
{
uint offset = file.ReadUInt32();
if (offset >= max_offset)
throw new InvalidFormatException ("Invalid offset in script data file");
int size = file.ReadInt32();
uint id = file.ReadUInt32();
var header_pos = file.BaseStream.Position;
file.BaseStream.Position = offset;
byte[] line = file.ReadBytes (size);
if (line.Length != size)
throw new InvalidFormatException ("Premature end of file");
string text = Encodings.cp932.GetString (line);
script.TextLines.Add (new ScriptLine { Id = id, Text = text });
file.BaseStream.Position = header_pos;
}
return script;
}
}
public string GetName (ScriptData script_data)
{
var script = script_data as AmiScriptData;
if (null != script)
return script.Id.ToString ("x8");
else
return null;
}
struct IndexEntry
{
public uint offset, size, id;
}
public override void Write (Stream stream, ScriptData script_data)
{
var script = script_data as AmiScriptData;
if (null == script)
throw new ArgumentException ("Illegal ScriptData", "script_data");
using (var file = new BinaryWriter (stream, Encodings.cp932, true))
{
file.Write (Signature);
file.Write (script.Type);
uint count = (uint)script.TextLines.Count;
file.Write (count);
var index_pos = file.BaseStream.Position;
file.Seek ((int)count*12, SeekOrigin.Current);
var index = new IndexEntry[count];
int i = 0;
foreach (var line in script.TextLines)
{
var text = Encodings.cp932.GetBytes (line.Text);
index[i].offset = (uint)file.BaseStream.Position;
index[i].size = (uint)text.Length;
index[i].id = line.Id;
file.Write (text);
file.Write ((byte)0);
++i;
}
var end_pos = file.BaseStream.Position;
file.BaseStream.Position = index_pos;
foreach (var entry in index)
{
file.Write (entry.offset);
file.Write (entry.size);
file.Write (entry.id);
}
file.BaseStream.Position = end_pos;
}
}
}
}