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https://github.com/crskycode/GARbro.git
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(GameSystem): support PureMail archives.
This commit is contained in:
morkt
201
ArcFormats/GameSystem/ArcPureMail.cs
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201
ArcFormats/GameSystem/ArcPureMail.cs
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//! \file ArcPureMail.cs
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//! \date Sun Feb 12 04:18:56 2017
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//! \brief 0verflow Game System resource archive.
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//
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// Copyright (C) 2017 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.Windows.Media;
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namespace GameRes.Formats.GameSystem
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{
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internal class PmDatEntry : PackedEntry
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{
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public bool StoredSize;
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}
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[Export(typeof(ArchiveFormat))]
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public class PmDatOpener : ArchiveFormat
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{
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public override string Tag { get { return "DAT/PUREMAIL"; } }
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public override string Description { get { return "PureMail resource archive"; } }
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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 CanWrite { get { return false; } }
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public override ArcFile TryOpen (ArcView file)
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{
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if (file.MaxOffset <= 12 || file.MaxOffset > uint.MaxValue)
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return null;
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uint packed_size = file.View.ReadUInt32 (file.MaxOffset-12) ^ 0xF0F0F0F0;
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uint unpacked_size = file.View.ReadUInt32 (file.MaxOffset-8) ^ 0xF0F0F0F0;
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const uint entry_record_size = 0x50;
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int count = (int)(unpacked_size / entry_record_size);
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if (unpacked_size % entry_record_size != 0 || packed_size >= file.MaxOffset || !IsSaneCount (count))
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return null;
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var unpacked = new byte[unpacked_size];
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using (var packed = file.CreateStream (file.MaxOffset-12-packed_size, packed_size))
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LzUnpack (packed, unpacked);
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using (var index = new BinMemoryStream (unpacked))
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{
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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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int flags = index.ReadInt32();
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var name = index.ReadCString (0x40);
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var entry = FormatCatalog.Instance.Create<PmDatEntry> (name);
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entry.Offset = index.ReadUInt32();
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entry.Size = index.ReadUInt32();
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entry.UnpackedSize = index.ReadUInt32();
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if (!entry.CheckPlacement (file.MaxOffset))
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return null;
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if (entry.Name.EndsWith (".CRGB", StringComparison.InvariantCultureIgnoreCase) ||
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entry.Name.EndsWith (".CHAR", StringComparison.InvariantCultureIgnoreCase) ||
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entry.Name.EndsWith (".rol", StringComparison.InvariantCultureIgnoreCase) ||
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entry.Name.EndsWith (".edg", StringComparison.InvariantCultureIgnoreCase))
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entry.Type = "image";
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entry.IsPacked = (flags & 0xFF0000) != 0;
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entry.StoredSize = (flags & 0x2000000) != 0;
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dir.Add (entry);
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}
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return new ArcFile (file, this, dir);
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}
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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 pent = entry as PmDatEntry;
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if (null == pent || !pent.IsPacked)
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return base.OpenEntry (arc, entry);
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using (var input = arc.File.CreateStream (entry.Offset, entry.Size))
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{
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var unpacked_size = pent.UnpackedSize;
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if (pent.StoredSize)
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{
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unpacked_size = input.ReadUInt32();
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pent.UnpackedSize = unpacked_size;
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}
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var output = new byte[unpacked_size];
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LzUnpack (input, output);
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return new BinMemoryStream (output);
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}
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}
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void LzUnpack (IBinaryStream input, byte[] output)
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{
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var frame = new byte[0x1000];
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int dst = 0;
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int bits = 0;
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int mask = 0;
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int frame_pos = 0xFEE;
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while (dst < output.Length)
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{
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mask >>= 1;
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if (0 == mask)
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{
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bits = input.ReadByte();
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if (-1 == bits)
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break;
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mask = 0x80;
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}
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if (0 == (bits & mask))
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{
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int b = input.ReadByte();
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if (-1 == b)
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break;
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output[dst++] = (byte)b;
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frame[frame_pos++ & 0xFFF] = (byte)b;
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}
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else
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{
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int offset = input.ReadUInt16();
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int count = (offset & 0xF) + 3;
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offset >>= 4;
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while (count --> 0 && dst < output.Length)
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{
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byte v = frame[offset++ & 0xFFF];
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frame[frame_pos++ & 0xFFF] = v;
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output[dst++] = v;
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}
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}
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}
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}
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public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
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{
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if (entry.Name.EndsWith (".BGD", StringComparison.InvariantCultureIgnoreCase) ||
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entry.Name.EndsWith (".CRGB", StringComparison.InvariantCultureIgnoreCase))
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{
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var input = OpenEntry (arc, entry);
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var info = new ImageMetaData { Width = 800, Height = 600, BPP = 24 };
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return new CgdReader (BinaryStream.FromStream (input, entry.Name), info);
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}
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else if (entry.Name.EndsWith (".edg", StringComparison.InvariantCultureIgnoreCase))
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{
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var input = OpenEntry (arc, entry);
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var info = new ImageMetaData { Width = 460, Height = 345, BPP = 24 };
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return new ImgReader (BinaryStream.FromStream (input, entry.Name), info);
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}
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else if (entry.Name.EndsWith (".rol", StringComparison.InvariantCultureIgnoreCase))
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{
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var input = OpenEntry (arc, entry);
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uint width = 202;
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uint height = (uint)input.Length / (((width * 3u) + 3u) & ~3u);
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var info = new ImageMetaData { Width = width, Height = height, BPP = 24 };
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return new ImgReader (BinaryStream.FromStream (input, entry.Name), info);
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}
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else if (entry.Name.EndsWith (".CHAR", StringComparison.InvariantCultureIgnoreCase))
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{
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var input = OpenEntry (arc, entry);
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var info = new ChrMetaData {
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Width = 800, Height = 600, BPP = 32,
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DataOffset = 0, RgbSize = (int)input.Length,
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};
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return new ChrReader (BinaryStream.FromStream (input, entry.Name), info);
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}
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return base.OpenImage (arc, entry);
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}
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}
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internal class ImgReader : BinaryImageDecoder
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{
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public ImgReader (IBinaryStream input, ImageMetaData info) : base (input, info)
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{
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}
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protected override ImageData GetImageData ()
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{
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m_input.Position = 0;
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int stride = (int)Info.Width * Info.BPP / 8;
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stride = (stride + 3) & ~3;
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int total = stride * (int)Info.Height;
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var pixels = m_input.ReadBytes (total);
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if (pixels.Length != total)
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throw new EndOfStreamException();
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return ImageData.CreateFlipped (Info, PixelFormats.Bgr24, null, pixels, stride);
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}
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}
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}
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