mirror of
https://github.com/crskycode/GARbro.git
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286 lines
11 KiB
C#
286 lines
11 KiB
C#
//! \file ArcAMI.cs
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//! \date Thu Jul 03 09:40:40 2014
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//! \brief Muv-Luv Amaterasu Translation archive.
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//
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using System;
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using System.IO;
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using System.Text;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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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 ZLibNet;
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namespace GameRes.Formats
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{
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public class AmiEntry : PackedEntry
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{
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private Lazy<Tuple<string,string>> m_item;
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public override string Name
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{
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get { return m_item.Value.Item1; }
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set { m_item = new Lazy<Tuple<string, string>>(() => new Tuple<string, string>(value, Type)); }
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}
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public override string Type
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{
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get { return m_item.Value.Item2; }
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set { m_item = new Lazy<Tuple<string, string>>(() => new Tuple<string, string>(Name, value)); }
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}
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public AmiEntry (Func<Tuple<string, string>> factory)
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{
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m_item = new Lazy<Tuple<string, string>> (factory);
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}
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}
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[Export(typeof(ArchiveFormat))]
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public class AmiOpener : ArchiveFormat
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{
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public override string Tag { get { return "AMI"; } }
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public override string Description { get { return Strings.arcStrings.AMIDescription; } }
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public override uint Signature { get { return 0x00494d41; } }
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public override bool IsHierarchic { get { return false; } }
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public AmiOpener ()
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{
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Extensions = new string[] { "ami", "amr" };
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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 (4);
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if (count <= 0)
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return null;
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uint base_offset = file.View.ReadUInt32 (8);
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long max_offset = file.MaxOffset;
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if (base_offset >= max_offset)
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return null;
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uint cur_offset = 16;
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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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if (cur_offset+16 > base_offset)
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return null;
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uint id = file.View.ReadUInt32 (cur_offset);
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uint offset = file.View.ReadUInt32 (cur_offset+4);
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uint size = file.View.ReadUInt32 (cur_offset+8);
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uint packed_size = file.View.ReadUInt32 (cur_offset+12);
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var entry = new AmiEntry (() => {
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uint signature = file.View.ReadUInt32 (offset);
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string ext, type;
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if (0x00524353 == signature) {
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ext = "scr"; type = "script";
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} else if (0 != packed_size) {
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ext = "grp"; type = "image";
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} else {
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ext = "dat"; type = "";
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}
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string name = string.Format ("{0:x8}.{1}", id, ext);
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return new Tuple<string,string> (name, type);
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});
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entry.Offset = offset;
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entry.UnpackedSize = size;
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entry.IsPacked = 0 != packed_size;
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entry.Size = entry.IsPacked ? packed_size : size;
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if (!entry.CheckPlacement (max_offset))
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return null;
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dir.Add (entry);
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cur_offset += 16;
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}
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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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var input = arc.File.CreateStream (entry.Offset, entry.Size);
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var packed_entry = entry as AmiEntry;
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if (null == packed_entry || !packed_entry.IsPacked)
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return input;
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else
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return new ZLibStream (input, CompressionMode.Decompress);
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}
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}
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[Export(typeof(ImageFormat))]
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public class GrpFormat : ImageFormat
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{
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public override string Tag { get { return "GRP"; } }
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public override string Description { get { return Strings.arcStrings.GRPDescription; } }
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public override uint Signature { get { return 0x00505247; } }
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public override ImageMetaData ReadMetaData (Stream stream)
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{
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using (var file = new BinaryReader (stream, Encoding.ASCII, true))
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{
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if (file.ReadUInt32() != Signature)
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return null;
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var meta = new ImageMetaData();
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meta.OffsetX = file.ReadInt16();
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meta.OffsetY = file.ReadInt16();
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meta.Width = file.ReadUInt16();
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meta.Height = file.ReadUInt16();
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meta.BPP = 32;
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stream.Position = 0;
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return meta;
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}
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}
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public override ImageData Read (Stream file, ImageMetaData info)
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{
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int width = (int)info.Width;
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int height = (int)info.Height;
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int stride = width*4;
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byte[] pixels = new byte[stride*height];
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file.Position = 12;
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for (int row = height-1; row >= 0; --row)
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{
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if (stride != file.Read (pixels, row*stride, stride))
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throw new InvalidFormatException();
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}
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var bitmap = BitmapSource.Create (width, height, 96, 96,
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PixelFormats.Bgra32, null, pixels, stride);
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bitmap.Freeze();
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return new ImageData (bitmap, info);
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}
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public override void Write (Stream stream, ImageData image)
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{
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using (var file = new BinaryWriter (stream, Encoding.ASCII, true))
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{
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file.Write (Signature);
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file.Write ((short)image.OffsetX);
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file.Write ((short)image.OffsetY);
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file.Write ((ushort)image.Width);
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file.Write ((ushort)image.Height);
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var bitmap = image.Bitmap;
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if (bitmap.Format != PixelFormats.Bgra32)
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{
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var converted_bitmap = new FormatConvertedBitmap();
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converted_bitmap.BeginInit();
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converted_bitmap.Source = image.Bitmap;
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converted_bitmap.DestinationFormat = PixelFormats.Bgra32;
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converted_bitmap.EndInit();
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bitmap = converted_bitmap;
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}
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int stride = (int)image.Width * 4;
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byte[] row_data = new byte[stride];
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Int32Rect rect = new Int32Rect (0, (int)image.Height, (int)image.Width, 1);
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for (uint row = 0; row < image.Height; ++row)
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{
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--rect.Y;
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bitmap.CopyPixels (rect, row_data, stride, 0);
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file.Write (row_data);
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}
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}
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}
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}
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public class AmiScriptData : ScriptData
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{
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public uint Id;
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public uint Type;
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}
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[Export(typeof(ScriptFormat))]
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public class ScrFormat : ScriptFormat
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{
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public override string Tag { get { return "SCR"; } }
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public override string Description { get { return Strings.arcStrings.SCRDescription; } }
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public override uint Signature { get { return 0x00524353; } }
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public override ScriptData Read (string name, Stream stream)
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{
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if (Signature != FormatCatalog.ReadSignature (stream))
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return null;
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uint script_id = Convert.ToUInt32 (name, 16);
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uint max_offset = (uint)Math.Min (stream.Length, 0xffffffff);
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using (var file = new BinaryReader (stream, Encodings.cp932, true))
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{
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uint script_type = file.ReadUInt32();
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var script = new AmiScriptData {
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Id = script_id,
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Type = script_type
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};
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uint count = file.ReadUInt32();
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for (uint i = 0; i < count; ++i)
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{
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uint offset = file.ReadUInt32();
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if (offset >= max_offset)
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throw new InvalidFormatException ("Invalid offset in script data file");
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int size = file.ReadInt32();
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uint id = file.ReadUInt32();
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var header_pos = file.BaseStream.Position;
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file.BaseStream.Position = offset;
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byte[] line = file.ReadBytes (size);
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if (line.Length != size)
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throw new InvalidFormatException ("Premature end of file");
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string text = Encodings.cp932.GetString (line);
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script.TextLines.Add (new ScriptLine { Id = id, Text = text });
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file.BaseStream.Position = header_pos;
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}
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return script;
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}
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}
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public string GetName (ScriptData script_data)
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{
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var script = script_data as AmiScriptData;
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if (null != script)
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return script.Id.ToString ("x8");
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else
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return null;
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}
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struct IndexEntry
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{
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public uint offset, size, id;
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}
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public override void Write (Stream stream, ScriptData script_data)
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{
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var script = script_data as AmiScriptData;
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if (null == script)
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throw new ArgumentException ("Illegal ScriptData", "script_data");
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using (var file = new BinaryWriter (stream, Encodings.cp932, true))
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{
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file.Write (Signature);
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file.Write (script.Type);
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uint count = (uint)script.TextLines.Count;
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file.Write (count);
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var index_pos = file.BaseStream.Position;
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file.Seek ((int)count*12, SeekOrigin.Current);
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var index = new IndexEntry[count];
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int i = 0;
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foreach (var line in script.TextLines)
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{
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var text = Encodings.cp932.GetBytes (line.Text);
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index[i].offset = (uint)file.BaseStream.Position;
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index[i].size = (uint)text.Length;
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index[i].id = line.Id;
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file.Write (text);
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file.Write ((byte)0);
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++i;
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}
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var end_pos = file.BaseStream.Position;
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file.BaseStream.Position = index_pos;
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foreach (var entry in index)
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{
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file.Write (entry.offset);
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file.Write (entry.size);
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file.Write (entry.id);
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}
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file.BaseStream.Position = end_pos;
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}
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}
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}
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}
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