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(IImageDecoder): moved to separate file.
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@ -74,6 +74,7 @@
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<Compile Include="GameRes.cs" />
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<Compile Include="GameRes.cs" />
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<Compile Include="Image.cs" />
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<Compile Include="Image.cs" />
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<Compile Include="ImageBMP.cs" />
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<Compile Include="ImageBMP.cs" />
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<Compile Include="ImageDecoder.cs" />
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<Compile Include="ImageJPEG.cs" />
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<Compile Include="ImageJPEG.cs" />
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<Compile Include="ImagePNG.cs" />
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<Compile Include="ImagePNG.cs" />
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<Compile Include="ImageTGA.cs" />
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<Compile Include="ImageTGA.cs" />
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@ -186,70 +186,4 @@ namespace GameRes
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public static ImageFormat Bmp { get { return s_BmpFormat.Value; } }
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public static ImageFormat Bmp { get { return s_BmpFormat.Value; } }
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public static ImageFormat Tga { get { return s_TgaFormat.Value; } }
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public static ImageFormat Tga { get { return s_TgaFormat.Value; } }
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}
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}
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public interface IImageDecoder : IDisposable
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{
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Stream Input { get; }
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/// <summary>
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/// Underlying image format or null if image is not represented by any format.
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/// </summary>
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ImageFormat Format { get; }
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/// <summary>
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/// Image parameters.
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/// </summary>
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ImageMetaData Info { get; }
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/// <summary>
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/// Decoded image data.
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/// </summary>
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ImageData Image { get; }
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}
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public sealed class ImageStreamDecoder : IImageDecoder
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{
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IBinaryStream m_file;
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ImageFormat m_format;
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ImageMetaData m_info;
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ImageData m_image;
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public Stream Input { get { m_file.Position = 0; return m_file.AsStream; } }
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public ImageFormat Format { get { return m_format; } }
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public ImageMetaData Info { get { return m_info; } }
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public ImageData Image
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{
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get
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{
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if (null == m_image)
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{
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m_file.Position = 0;
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m_image = m_format.Read (m_file, m_info);
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}
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return m_image;
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}
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}
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public ImageStreamDecoder (IBinaryStream file)
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{
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m_file = file;
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var format = ImageFormat.FindFormat (file);
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if (null == format)
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throw new InvalidFormatException();
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m_format = format.Item1;
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m_info = format.Item2;
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}
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bool m_disposed = false;
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public void Dispose ()
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{
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if (!m_disposed)
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{
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m_file.Dispose();
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m_disposed = true;
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}
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}
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}
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}
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}
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139
GameRes/ImageDecoder.cs
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139
GameRes/ImageDecoder.cs
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@ -0,0 +1,139 @@
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//! \file ImageDecoder.cs
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//! \date Wed Oct 26 00:33:00 2016
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//! \brief Image decoder interface.
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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.IO;
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namespace GameRes
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{
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public interface IImageDecoder : IDisposable
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{
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Stream Input { get; }
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/// <summary>
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/// Underlying image format or null if image is not represented by any format.
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/// </summary>
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ImageFormat Format { get; }
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/// <summary>
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/// Image parameters.
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/// </summary>
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ImageMetaData Info { get; }
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/// <summary>
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/// Decoded image data.
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/// </summary>
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ImageData Image { get; }
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}
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public sealed class ImageStreamDecoder : IImageDecoder
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{
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IBinaryStream m_file;
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ImageData m_image;
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public Stream Input { get { m_file.Position = 0; return m_file.AsStream; } }
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public ImageFormat Format { get; private set; }
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public ImageMetaData Info { get; private set; }
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public ImageData Image
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{
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get
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{
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if (null == m_image)
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{
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m_file.Position = 0;
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m_image = Format.Read (m_file, Info);
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}
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return m_image;
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}
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}
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public ImageStreamDecoder (IBinaryStream file)
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{
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m_file = file;
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var format = ImageFormat.FindFormat (file);
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if (null == format)
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throw new InvalidFormatException();
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Format = format.Item1;
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Info = format.Item2;
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}
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bool m_disposed = false;
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public void Dispose ()
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{
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if (!m_disposed)
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{
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m_file.Dispose();
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m_disposed = true;
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}
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}
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}
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public abstract class BinaryImageDecoder : IImageDecoder
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{
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protected IBinaryStream m_input;
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protected ImageData m_image;
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public Stream Input { get { m_input.Position = 0; return m_input.AsStream; } }
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public ImageFormat Format { get { return null; } }
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public ImageMetaData Info { get; protected set; }
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public ImageData Image
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{
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get
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{
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if (null == m_image)
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m_image = GetImageData();
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return m_image;
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}
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}
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protected BinaryImageDecoder (IBinaryStream input)
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{
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m_input = input;
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}
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protected abstract ImageData GetImageData ();
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#region IDisposable members
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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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bool m_disposed = false;
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protected virtual void Dispose (bool disposing)
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{
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if (!m_disposed)
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{
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if (disposing)
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m_input.Dispose();
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m_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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