GARbro-mirror/ArcFormats/ArcAMI.cs

286 lines
11 KiB
C#

//! \file ArcAMI.cs
//! \date Thu Jul 03 09:40:40 2014
//! \brief Muv-Luv Amaterasu Translation archive.
//
using System;
using System.IO;
using System.Text;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using ZLibNet;
namespace GameRes.Formats
{
public class AmiEntry : PackedEntry
{
private Lazy<Tuple<string,string>> m_item;
public override string Name
{
get { return m_item.Value.Item1; }
set { m_item = new Lazy<Tuple<string, string>>(() => new Tuple<string, string>(value, Type)); }
}
public override string Type
{
get { return m_item.Value.Item2; }
set { m_item = new Lazy<Tuple<string, string>>(() => new Tuple<string, string>(Name, value)); }
}
public AmiEntry (Func<Tuple<string, string>> factory)
{
m_item = new Lazy<Tuple<string, string>> (factory);
}
}
[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; } }
public override bool IsHierarchic { get { return false; } }
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 (() => {
uint signature = file.View.ReadUInt32 (offset);
string ext, type;
if (0x00524353 == signature) {
ext = "scr"; type = "script";
} else if (0 != packed_size) {
ext = "grp"; type = "image";
} else {
ext = "dat"; type = "";
}
string name = string.Format ("{0:x8}.{1}", id, ext);
return new Tuple<string,string> (name, type);
});
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)
{
var input = arc.File.CreateStream (entry.Offset, entry.Size);
var packed_entry = entry as AmiEntry;
if (null == packed_entry || !packed_entry.IsPacked)
return input;
else
return new ZLibStream (input, CompressionMode.Decompress);
}
}
[Export(typeof(ImageFormat))]
public class GrpFormat : ImageFormat
{
public override string Tag { get { return "GRP"; } }
public override string Description { get { return Strings.arcStrings.GRPDescription; } }
public override uint Signature { get { return 0x00505247; } }
public override ImageMetaData ReadMetaData (Stream stream)
{
using (var file = new BinaryReader (stream, Encoding.ASCII, true))
{
if (file.ReadUInt32() != Signature)
return null;
var meta = new ImageMetaData();
meta.OffsetX = file.ReadInt16();
meta.OffsetY = file.ReadInt16();
meta.Width = file.ReadUInt16();
meta.Height = file.ReadUInt16();
meta.BPP = 32;
stream.Position = 0;
return meta;
}
}
public override ImageData Read (Stream file, ImageMetaData info)
{
int width = (int)info.Width;
int height = (int)info.Height;
int stride = width*4;
byte[] pixels = new byte[stride*height];
file.Position = 12;
for (int row = height-1; row >= 0; --row)
{
if (stride != file.Read (pixels, row*stride, stride))
throw new InvalidFormatException();
}
var bitmap = BitmapSource.Create (width, height, 96, 96,
PixelFormats.Bgra32, null, pixels, stride);
bitmap.Freeze();
return new ImageData (bitmap, info);
}
public override void Write (Stream stream, ImageData image)
{
using (var file = new BinaryWriter (stream, Encoding.ASCII, true))
{
file.Write (Signature);
file.Write ((short)image.OffsetX);
file.Write ((short)image.OffsetY);
file.Write ((ushort)image.Width);
file.Write ((ushort)image.Height);
var bitmap = image.Bitmap;
if (bitmap.Format != PixelFormats.Bgra32)
{
var converted_bitmap = new FormatConvertedBitmap();
converted_bitmap.BeginInit();
converted_bitmap.Source = image.Bitmap;
converted_bitmap.DestinationFormat = PixelFormats.Bgra32;
converted_bitmap.EndInit();
bitmap = converted_bitmap;
}
int stride = (int)image.Width * 4;
byte[] row_data = new byte[stride];
Int32Rect rect = new Int32Rect (0, (int)image.Height, (int)image.Width, 1);
for (uint row = 0; row < image.Height; ++row)
{
--rect.Y;
bitmap.CopyPixels (rect, row_data, stride, 0);
file.Write (row_data);
}
}
}
}
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;
}
}
}
}