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(Seraphim): added variable archive schemes.
restore scrambled images.
This commit is contained in:
morkt
parent
dfb56d21ce
commit
38e18c6976
@ -2,7 +2,7 @@
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//! \date Fri Jul 17 13:47:34 2015
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//! \brief Seraphim engine resource archives.
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//
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// Copyright (C) 2015 by morkt
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// Copyright (C) 2015-2017 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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@ -27,11 +27,45 @@ 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.Text.RegularExpressions;
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using System.Linq;
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using System.Windows.Media;
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using GameRes.Compression;
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namespace GameRes.Formats.Seraphim
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{
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internal class ArchEntry : PackedEntry
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{
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public short DirIndex;
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public short FileIndex;
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}
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[Serializable]
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public class SeraphScheme : ResourceScheme
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{
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public IDictionary<string, ArchPacScheme> KnownSchemes;
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}
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[Serializable]
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public class ArchPacScheme
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{
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public long IndexOffset;
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public short EventDir;
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public IDictionary<short, short> EventMap;
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}
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internal class SeraphArchive : ArcFile
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{
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public readonly short EventDir;
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public readonly IDictionary<short, short> EventMap;
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public SeraphArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, ArchPacScheme scheme)
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: base (arc, impl, dir)
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{
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EventDir = scheme.EventDir;
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EventMap = scheme.EventMap;
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}
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}
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/// <summary>
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/// this archive format has different index offsets hardcoded into game executable.
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/// </summary>
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@ -50,9 +84,6 @@ namespace GameRes.Formats.Seraphim
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Extensions = new string[] { "dat" };
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}
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// const long ArchPacOffset = 0x0C23659F;
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const long ArchPacOffset = 0x0A0B0AEA;
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public override ArcFile TryOpen (ArcView file)
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{
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if (file.MaxOffset > uint.MaxValue)
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@ -61,7 +92,23 @@ namespace GameRes.Formats.Seraphim
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if (!name.Equals ("ArchPac.dat", StringComparison.InvariantCultureIgnoreCase))
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return null;
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long index_offset = ArchPacOffset;
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foreach (var scheme in KnownSchemes.Values.Where (s => s.IndexOffset < file.MaxOffset))
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{
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var dir = ReadIndex (file, scheme);
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if (dir != null)
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{
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if (scheme.EventMap != null)
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return new SeraphArchive (file, this, dir, scheme);
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else
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return new ArcFile (file, this, dir);
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}
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}
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return null;
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}
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List<Entry> ReadIndex (ArcView file, ArchPacScheme scheme)
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{
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long index_offset = scheme.IndexOffset;
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int base_count = file.View.ReadInt32 (index_offset);
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int file_count = file.View.ReadInt32 (index_offset + 4);
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index_offset += 8;
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@ -90,8 +137,13 @@ namespace GameRes.Formats.Seraphim
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index_offset += 4;
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for (int i = 0; i < base_offsets[j].Item2; ++i)
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{
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var entry = new PackedEntry { Name = string.Format ("{0}-{1:D5}.cts", j, i), Type = "image" };
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entry.Offset = next_offset;
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var entry = new ArchEntry {
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Name = FormatEntryName (j, i),
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Type = "image",
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DirIndex = (short)j,
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FileIndex = (short)i,
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Offset = next_offset,
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};
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next_offset = file.View.ReadUInt32 (index_offset);
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index_offset += 4;
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if (next_offset < entry.Offset)
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@ -106,7 +158,7 @@ namespace GameRes.Formats.Seraphim
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}
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if (0 == dir.Count)
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return null;
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return new ArcFile (file, this, dir);
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return dir;
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}
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public override Stream OpenEntry (ArcFile arc, Entry entry)
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@ -121,5 +173,95 @@ namespace GameRes.Formats.Seraphim
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return input;
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return new ZLibStream (input, CompressionMode.Decompress);
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}
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public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
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{
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var sarc = arc as SeraphArchive;
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var aent = entry as ArchEntry;
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if (null == sarc || null == aent || null == sarc.EventMap
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|| aent.DirIndex != sarc.EventDir || !sarc.EventMap.ContainsKey (aent.FileIndex))
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return base.OpenImage (arc, entry);
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var base_index = sarc.EventMap[aent.FileIndex];
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var base_entry = sarc.Dir.Cast<ArchEntry>()
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.FirstOrDefault (e => e.DirIndex == sarc.EventDir && e.FileIndex == base_index);
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if (null == base_entry)
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return base.OpenImage (arc, entry);
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var base_img = OpenCtImage (arc, base_entry);
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if (null == base_img)
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return base.OpenImage (arc, entry);
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var input = arc.OpenBinaryEntry (entry);
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return new CtOverlayDecoder (input, base_img);
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}
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SeraphReader OpenCtImage (ArcFile arc, Entry entry)
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{
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using (var input = arc.OpenBinaryEntry (entry))
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{
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if (input.Signature != CtFormat.Value.Signature)
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return null;
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var info = CtFormat.Value.ReadMetaData (input) as SeraphMetaData;
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if (null == info)
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return null;
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var reader = new SeraphReader (input.AsStream, info);
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reader.UnpackCt();
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return reader;
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}
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}
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internal static string FormatEntryName (int dir_index, int file_index)
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{
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return string.Format ("{0}-{1:D5}.cts", dir_index, file_index);
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}
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internal static ResourceInstance<ImageFormat> CtFormat = new ResourceInstance<ImageFormat> ("CT");
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SeraphScheme m_scheme = new SeraphScheme { KnownSchemes = new Dictionary<string, ArchPacScheme>() };
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public override ResourceScheme Scheme
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{
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get { return m_scheme; }
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set { m_scheme = (SeraphScheme)value; }
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}
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public IDictionary<string, ArchPacScheme> KnownSchemes { get { return m_scheme.KnownSchemes; } }
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}
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internal class CtOverlayDecoder : BinaryImageDecoder
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{
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SeraphReader m_baseline;
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public CtOverlayDecoder (IBinaryStream input, SeraphReader baseline)
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: base (input, baseline.Info)
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{
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m_baseline = baseline;
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}
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protected override ImageData GetImageData ()
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{
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var info = ArchPacOpener.CtFormat.Value.ReadMetaData (m_input) as SeraphMetaData;
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if (null == info)
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return ImageFormat.Read (m_input);
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var overlay = new SeraphReader (m_input.AsStream, info);
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overlay.UnpackCt();
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var dst = m_baseline.Data;
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var src = overlay.Data;
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if (dst.Length != src.Length)
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return ImageData.Create (overlay.Info, PixelFormats.Bgra32, null, src);
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for (int i = 0; i < src.Length; i += 4)
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{
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if (src[i+3] != 0)
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{
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dst[i ] = src[i ];
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dst[i+1] = src[i+1];
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dst[i+2] = src[i+2];
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dst[i+3] = src[i+3];
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}
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else
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{
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dst[i+3] = 0xFF;
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}
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}
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return ImageData.Create (Info, PixelFormats.Bgra32, null, dst);
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}
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}
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}
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