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Silky's bitmap mask format.
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morkt
parent
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commit
48d38a5eaf
@ -70,6 +70,7 @@
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<Compile Include="Debonosu\ArcPAK.cs" />
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<Compile Include="elf\ImageG24.cs" />
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<Compile Include="elf\ImageGP8.cs" />
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<Compile Include="Silky\ImageMSK.cs" />
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<Compile Include="Emic\ArcPACK.cs" />
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<Compile Include="Emic\ImageMWP.cs" />
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<Compile Include="Ethornell\AudioBGI.cs" />
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276
ArcFormats/Silky/ImageMSK.cs
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276
ArcFormats/Silky/ImageMSK.cs
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//! \file ImageMSK.cs
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//! \date Sat Oct 17 09:33:34 2015
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//! \brief Silky's bitmap mask.
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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 GameRes.Utility;
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using System;
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using System.ComponentModel.Composition;
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using System.IO;
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using System.Windows.Media;
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namespace GameRes.Formats.Silky
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{
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[Export(typeof(ImageFormat))]
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public class RmskFormat : ImageFormat
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{
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public override string Tag { get { return "RMSK/SILKY'S"; } }
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public override string Description { get { return "Silky's bitmap mask format"; } }
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public override uint Signature { get { return 0x6B736D52; } } // 'Rmsk'
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public RmskFormat ()
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{
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Extensions = new string[] { "msk" };
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}
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public override ImageMetaData ReadMetaData (Stream stream)
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{
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var header = new byte[12];
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if (12 != stream.Read (header, 0, 12))
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return null;
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return new ImageMetaData
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{
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Width = LittleEndian.ToUInt16 (header, 8),
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Height = LittleEndian.ToUInt16 (header, 10),
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OffsetX = LittleEndian.ToInt16 (header, 4),
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OffsetY = LittleEndian.ToInt16 (header, 6),
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BPP = 8,
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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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using (var reader = new RmskReader (stream, info))
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{
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reader.Unpack();
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return ImageData.CreateFlipped (info, PixelFormats.Gray8, null, reader.Data, (int)info.Width);
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}
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}
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public override void Write (Stream file, ImageData image)
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{
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throw new System.NotImplementedException ("RmskFormat.Write not implemented");
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}
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}
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internal sealed class RmskReader : IDisposable
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{
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MsbBitStream m_input;
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byte[] m_output;
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int m_flag;
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int m_width;
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int m_height;
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public byte[] Data { get { return m_output; } }
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public RmskReader (Stream input, ImageMetaData info)
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{
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input.Position = 0xC;
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m_flag = input.ReadByte();
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if (-1 == m_flag)
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throw new EndOfStreamException();
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input.Position = 0xE;
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m_input = new MsbBitStream (input, true);
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m_width = (int)info.Width;
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m_height = (int)info.Height;
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m_output = new byte[m_width*m_height];
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}
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public void Unpack ()
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{
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if (0 == (m_flag & 1))
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UnpackV0();
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else
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UnpackV1();
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}
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void UnpackV0 ()
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{
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int line = m_width * (m_height - 1);
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for (int h = 0; h < m_height; ++h)
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{
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int dst = line;
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int column = m_width;
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while (column > 0)
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{
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if (0 == m_input.GetNextBit())
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{
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int src;
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int count;
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if (1 == m_input.GetNextBit())
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{
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if (0 == m_input.GetNextBit())
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{
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src = dst + OffsetTable8[m_input.GetBits (3)];
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}
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else
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{
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src = m_width + dst + OffsetTable16[m_input.GetBits (4)];
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}
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}
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else
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{
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src = dst;
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if (1 == m_input.GetNextBit())
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{
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src += m_width * (m_input.GetNextBit() + 2);
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}
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else
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{
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src += m_width * (m_input.GetBits (2) + 4);
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}
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src += OffsetTable16[m_input.GetBits (4)];
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}
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if (1 == m_input.GetNextBit())
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{
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count = m_input.GetNextBit() + 2;
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}
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else if (1 == m_input.GetNextBit())
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{
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count = m_input.GetBits (2) + 4;
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}
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else if (1 == m_input.GetNextBit())
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{
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count = m_input.GetBits (3) + 8;
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}
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else if (1 == m_input.GetNextBit())
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{
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count = m_input.GetBits (6) + 16;
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}
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else if (1 == m_input.GetNextBit())
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{
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count = m_input.GetBits (8) + 80;
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}
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else
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{
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count = m_input.GetBits (10) + 336;
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}
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for (int i = 0; i < count; ++i)
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{
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m_output[dst++] = m_output[src++];
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}
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column -= count;
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}
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else
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{
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m_output[dst++] = (byte)m_input.GetBits (8);
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--column;
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}
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}
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line -= m_width;
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}
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}
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void UnpackV1 ()
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{
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int column = m_width * (m_height - 1);
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for (int x = 0; x < m_width; ++x)
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{
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int dst = column;
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int line = m_height;
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while (line > 0)
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{
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if (0 != m_input.GetNextBit())
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{
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m_output[dst] = (byte)m_input.GetBits (8);
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dst -= m_width;
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--line;
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}
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else
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{
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int src;
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if (1 == m_input.GetNextBit())
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{
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if (0 == m_input.GetNextBit())
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{
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src = dst - m_width * OffsetTable8[m_input.GetBits (3)];
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}
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else
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{
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src = dst - 1 - m_width * OffsetTable16[m_input.GetBits (4)];
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}
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}
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else if (1 == m_input.GetNextBit())
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{
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int n = dst - 2 - m_input.GetNextBit();
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src = n - m_width * OffsetTable16[m_input.GetBits (4)];
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}
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else
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{
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int n = dst - 4 - m_input.GetBits (2);
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src = n - m_width * OffsetTable16[m_input.GetBits (4)];
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}
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int count;
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if (1 == m_input.GetNextBit())
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{
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count = m_input.GetBits (1) + 2;
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}
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else if (1 == m_input.GetNextBit())
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{
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count = m_input.GetBits (2) + 4;
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}
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else if (1 == m_input.GetNextBit())
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{
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count = m_input.GetBits (3) + 8;
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}
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else if (1 == m_input.GetNextBit())
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{
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count = m_input.GetBits (6) + 16;
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}
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else if (1 == m_input.GetNextBit())
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{
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count = m_input.GetBits (8) + 80;
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}
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else
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{
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count = m_input.GetBits (10) + 336;
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}
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line -= count;
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for (int i = 0; i < count; ++i)
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{
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m_output[dst] = m_output[src];
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src -= m_width;
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dst -= m_width;
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}
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}
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}
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++column;
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}
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}
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static int[] OffsetTable8 = { -1, -2, -4, -6, -8, -12, -16, -20 };
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static int[] OffsetTable16 = { -20, -16, -12, -8, -6, -4, -2, -1, 0, 1, 2, 4, 6, 8, 12, 16 };
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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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if (!_disposed)
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{
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m_input.Dispose();
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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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