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435 lines
16 KiB
C#
435 lines
16 KiB
C#
//! \file ImageAinos.cs
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//! \date Sun Apr 05 04:16:27 2015
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//! \brief Ainos image format.
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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 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 System.Windows;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using GameRes.Utility;
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namespace GameRes.Formats.Ags
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{
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public class CgMetaData : ImageMetaData
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{
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public int Type;
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public int Right, Bottom;
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}
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internal class AniEntry : Entry
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{
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public int FrameIndex;
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public int FrameType;
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public int KeyFrame;
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}
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[Export(typeof(ArchiveFormat))]
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public class AniOpener : ArchiveFormat
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{
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public override string Tag { get { return "ANI"; } }
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public override string Description { get { return "Anime Game System animation resource"; } }
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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 CanCreate { get { return false; } }
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public override ArcFile TryOpen (ArcView file)
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{
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uint first_offset = file.View.ReadUInt32 (0);
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if (first_offset < 4 || file.MaxOffset > int.MaxValue || first_offset >= file.MaxOffset || 0 != (first_offset & 3))
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return null;
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int frame_count = (int)(first_offset / 4);
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if (frame_count > 10000)
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return null;
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long index_offset = 4;
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var frame_table = new uint[frame_count];
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frame_table[0] = first_offset;
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for (int i = 1; i < frame_count; ++i)
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{
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var offset = file.View.ReadUInt32 (index_offset);
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index_offset += 4;
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if (offset < first_offset || offset >= file.MaxOffset)
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return null;
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frame_table[i] = offset;
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}
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var frame_map = new Dictionary<uint, byte>();
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foreach (var offset in frame_table)
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{
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if (!frame_map.ContainsKey (offset))
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{
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byte frame_type = file.View.ReadByte (offset);
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if (frame_type >= 0x20)
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return null;
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frame_map[offset] = frame_type;
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}
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}
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int last_key_frame = 0;
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var dir = new List<Entry>();
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for (int i = 0; i < frame_count; ++i)
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{
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var offset = frame_table[i];
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int frame_type = frame_map[offset];
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if (1 == frame_type)
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continue;
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frame_type &= 0xF;
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if (0 == frame_type || 0xA == frame_type)
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last_key_frame = dir.Count;
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var entry = new AniEntry
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{
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Name = string.Format ("{0:D4}.tga", i),
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Type = "image",
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Offset = offset,
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FrameType = frame_type,
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KeyFrame = last_key_frame,
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FrameIndex = dir.Count,
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};
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dir.Add (entry);
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}
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if (0 == dir.Count)
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return null;
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var ordered = dir.OrderBy (e => e.Offset).ToList();
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for (int i = 0; i < ordered.Count; ++i)
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{
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var entry = ordered[i] as AniEntry;
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long next_offset = file.MaxOffset;
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for (int j = i+1; j <= ordered.Count; ++j)
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{
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next_offset = j == ordered.Count ? file.MaxOffset : ordered[j].Offset;
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if (next_offset != entry.Offset)
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break;
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}
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entry.Size = (uint)(next_offset - entry.Offset);
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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 ani = (AniEntry)entry;
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byte[] key_frame = null;
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if (ani.KeyFrame != ani.FrameIndex)
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{
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var dir = (List<Entry>)arc.Dir;
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for (int i = ani.KeyFrame; i < ani.FrameIndex; ++i)
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{
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var frame = dir[i];
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using (var s = arc.File.CreateStream (frame.Offset, frame.Size))
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{
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var frame_info = Cg.ReadMetaData (s) as CgMetaData;
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if (null == frame_info)
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break;
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using (var reader = new CgFormat.Reader (s, frame_info, key_frame))
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{
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reader.Unpack();
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key_frame = reader.Data;
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}
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}
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}
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}
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var input = arc.File.CreateStream (entry.Offset, entry.Size);
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CgMetaData info = null;
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try
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{
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info = Cg.ReadMetaData (input) as CgMetaData;
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}
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catch
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{
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input.Dispose();
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throw;
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}
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if (null == info)
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{
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input.Position = 0;
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return input;
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}
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using (input)
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using (var reader = new CgFormat.Reader (input, info, key_frame))
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{
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reader.Unpack();
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var header = new byte[0x12];
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header[2] = 2;
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LittleEndian.Pack ((ushort)info.Width, header, 0xc);
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LittleEndian.Pack ((ushort)info.Height, header, 0xe);
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header[0x10] = 24;
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header[0x11] = 0x20;
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return new PrefixStream (header, new MemoryStream (reader.Data));
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}
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}
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static Lazy<ImageFormat> s_Cg = new Lazy<ImageFormat> (() => ImageFormat.FindByTag ("CG"));
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ImageFormat Cg { get { return s_Cg.Value; } }
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}
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[Export(typeof(ImageFormat))]
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public class CgFormat : ImageFormat
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{
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public override string Tag { get { return "CG"; } }
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public override string Description { get { return "Anime Game System image format"; } }
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public override uint Signature { get { return 0; } }
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public override void Write (Stream file, ImageData image)
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{
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throw new System.NotImplementedException ("CgFormat.Write not implemented");
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}
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public override ImageMetaData ReadMetaData (Stream stream)
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{
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int sig = stream.ReadByte();
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if (sig >= 0x20)
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return null;
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using (var input = new ArcView.Reader (stream))
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{
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int width = input.ReadInt16();
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int height = input.ReadInt16();
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if (width <= 0 || height <= 0 || width > 4096 || height > 4096)
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return null;
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var meta = new CgMetaData
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{
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Width = (uint)width,
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Height = (uint)height,
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BPP = 24,
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Type = sig,
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};
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if (0 != (sig & 0xf))
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{
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meta.OffsetX = input.ReadInt16();
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meta.OffsetY = input.ReadInt16();
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meta.Right = input.ReadInt16();
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meta.Bottom = input.ReadInt16();
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if (meta.OffsetX > meta.Right || meta.OffsetY > meta.Bottom ||
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meta.Right > width || meta.Bottom > height ||
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meta.OffsetX < 0 || meta.OffsetY < 0)
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return null;
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}
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return meta;
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}
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}
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public override ImageData Read (Stream stream, ImageMetaData info)
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{
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var meta = (CgMetaData)info;
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using (var reader = new Reader (stream, meta))
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{
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reader.Unpack();
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return ImageData.Create (info, PixelFormats.Bgr24, null, reader.Data, (int)info.Width*3);
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}
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}
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internal class Reader : IDisposable
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{
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BinaryReader m_input;
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byte[] m_output;
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int m_type;
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int m_width;
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int m_height;
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int m_left;
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int m_top;
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int m_right;
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int m_bottom;
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public byte[] Data { get { return m_output; } }
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public Reader (Stream file, CgMetaData info, byte[] base_image = null)
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{
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m_type = info.Type;
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m_width = (int)info.Width;
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m_height = (int)info.Height;
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m_left = info.OffsetX;
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m_top = info.OffsetY;
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m_right = info.Right == 0 ? m_width : info.Right;
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m_bottom = info.Bottom == 0 ? m_height : info.Bottom;
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m_output = base_image ?? new byte[3*m_width*m_height];
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m_input = new BinaryReader (file, Encoding.ASCII, true);
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ShiftTable = InitShiftTable();
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if (0 != (info.Type & 0xf))
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file.Position = 13;
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else
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file.Position = 5;
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}
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static readonly short[] ShiftX = new short[] { // 409b6c
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0, -1, -3, -2, -1, 0, 1, 2
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};
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static readonly short[] ShiftY = new short[] { // 409b7c
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0, 0, -1, -1, -1, -1, -1, -1
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};
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readonly int[] ShiftTable;
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private int[] InitShiftTable ()
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{
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var table = new int[8];
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for (int i = 0; i < 8; ++i)
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{
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table[i] = 3 * (ShiftX[i] + ShiftY[i] * m_width);
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}
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return table;
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}
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public void Unpack ()
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{
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if (0 != (m_type & 0x10))
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UnpackRGB();
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else
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UnpackIndexed();
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}
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public void UnpackRGB ()
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{
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int right = 3 * (m_width * m_top + m_right);
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int left = 3 * (m_width * m_top + m_left);
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for (int i = m_top; i != m_bottom; ++i)
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{
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int dst = left;
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while (dst != right)
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{
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byte v9 = m_input.ReadByte();
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if (0 != (v9 & 0x80))
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{
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if (0 != (v9 & 0x40))
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{
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m_output[dst] = (byte)(m_output[dst - 3] + ((v9 >> 3) & 6) - 2);
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m_output[dst + 1] = (byte)(m_output[dst - 2] + ((v9 >> 1) & 6) - 2);
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m_output[dst + 2] = (byte)(m_output[dst - 1] + ((v9 & 3) + 127) * 2);
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}
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else
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{
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byte v15 = m_input.ReadByte();
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m_output[dst] = (byte)(((v9 << 1) + (v15 & 1)) << 1);
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m_output[dst + 1] = (byte)(v15 & 0xfe);
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m_output[dst + 2] = m_input.ReadByte();
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}
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dst += 3;
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continue;
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}
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uint shift = (uint)v9 >> 4;
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int count = v9 & 0xF;
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if (0 == count)
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{
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count = (int)m_input.ReadByte() + 15;
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if (270 == count)
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{
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int v12;
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do
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{
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v12 = m_input.ReadByte();
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count += v12;
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}
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while (v12 == 0xff);
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}
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}
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if (0 != shift)
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{
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int src = dst + ShiftTable[shift];
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Binary.CopyOverlapped (m_output, src, dst, count * 3);
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}
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dst += 3 * count;
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}
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left += m_width*3; //640*3;
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right += m_width*3; //640*3;
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}
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}
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public void UnpackIndexed ()
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{
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byte[] palette = m_input.ReadBytes (0x180);
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int right = 3 * (m_width * m_top + m_right);
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int left = 3 * (m_width * m_top + m_left); // 3 * (Rect.left + 640 * Rect.top);
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for (int i = m_top; i != m_bottom; ++i)
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{
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int dst = left;
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while (dst != right)
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{
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byte v13 = m_input.ReadByte();
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if (0 != (v13 & 0x80))
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{
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int color = 3 * (v13 & 0x7F);
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m_output[dst] = palette[color];
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m_output[dst+1] = palette[color+1];
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m_output[dst+2] = palette[color+2];
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dst += 3;
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continue;
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}
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uint shift = (uint)v13 >> 4;
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int count = v13 & 0xF;
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if (0 == count)
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{
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count = m_input.ReadByte() + 15;
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if (270 == count)
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{
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int v16;
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do
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{
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v16 = m_input.ReadByte();
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count += v16;
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}
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while (v16 == 0xff);
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}
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}
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if (0 != shift)
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{
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int src = dst + ShiftTable[shift];
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Binary.CopyOverlapped (m_output, src, dst, count * 3);
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}
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dst += 3 * count;
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}
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right += m_width*3;
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left += m_width*3;
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}
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}
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#region IDisposable Members
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bool disposed = false;
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public void Dispose ()
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{
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Dispose (true);
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GC.SuppressFinalize (this);
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}
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protected virtual void Dispose (bool disposing)
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{
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if (!disposed)
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{
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if (disposing)
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{
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m_input.Dispose();
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}
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disposed = true;
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}
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}
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#endregion
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}
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}
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}
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