mirror of
https://github.com/crskycode/GARbro.git
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359 lines
13 KiB
C#
359 lines
13 KiB
C#
//! \file ArcPACK.cs
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//! \date 2018 Feb 03
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//! \brief Lune Adv Game resource archive.
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//
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// Copyright (C) 2018 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.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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using GameRes.Utility;
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// [001110][Lune] Wasurekaketa Kokoro no Kakera
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// [010413][Sarang] Tokyo Yuuyuu
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namespace GameRes.Formats.Lune
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{
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[Export(typeof(ArchiveFormat))]
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[ExportMetadata("Priority", -2)]
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public class PackOpener : ArchiveFormat
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{
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public override string Tag { get { return "PACK/LUNE"; } }
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public override string Description { get { return "Lune Adv Game engine 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 PackOpener ()
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{
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Extensions = new string[] { "dat", "wda" };
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}
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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 <= 8 || first_offset >= file.MaxOffset || 0 != (first_offset & 7))
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return null;
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int count = (int)(first_offset / 8);
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if (!IsSaneCount (count))
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return null;
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var base_name = Path.GetFileNameWithoutExtension (file.Name);
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string type = file.Name.HasAnyOfExtensions (".wda", ".bgm") ? "audio"
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: file.Name.HasExtension (".scr") ? "script"
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: "image";
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if (base_name == "pack")
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base_name = Path.GetExtension (file.Name).TrimStart ('.');
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uint index_offset = 0;
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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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var entry = new Entry {
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Name = string.Format ("{0}#{1:D5}", base_name, i),
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Type = type,
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Offset = file.View.ReadUInt32 (index_offset),
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Size = file.View.ReadUInt32 (index_offset+4),
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};
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if (entry.Offset < first_offset || !entry.CheckPlacement (file.MaxOffset))
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return null;
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if (entry.Size > 0)
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dir.Add (entry);
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index_offset += 8;
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}
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if (dir.Count == 0 || dir[dir.Count-1].Offset + dir[dir.Count-1].Size != file.MaxOffset)
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return null;
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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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if (!arc.File.Name.HasAnyOfExtensions (".wda", ".bgm"))
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return base.OpenEntry (arc, entry);
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uint sample_rate = arc.File.Name.HasExtension (".bgm") ? 44100u : 22050u;
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var format = new WaveFormat {
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FormatTag = 1,
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Channels = 1,
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SamplesPerSecond = sample_rate,
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BlockAlign = 2,
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BitsPerSample = 16,
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};
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format.SetBPS();
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byte[] wav_header;
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using (var output = new MemoryStream (0x2C))
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{
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WaveAudio.WriteRiffHeader (output, format, entry.Size);
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wav_header = output.ToArray();
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}
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var pcm_data = arc.File.CreateStream (entry.Offset, entry.Size);
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return new PrefixStream (wav_header, pcm_data);
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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 input = arc.File.CreateStream (entry.Offset, entry.Size);
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if (0 == input.Signature)
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return new Pack2ImageDecoder (input);
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else if (arc.File.Name.HasExtension (".msk"))
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return new PackMaskDecoder (input);
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else
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return new PackImageDecoder (input);
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}
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}
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internal class PackImageDecoder : BinaryImageDecoder
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{
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protected int m_start_pos;
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protected int m_stride;
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protected int m_first_pixel_size;
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protected byte m_max_pixel = 0x20;
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public PixelFormat Format { get; protected set; }
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public PackImageDecoder (IBinaryStream input) : base (input)
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{
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ReadHeader();
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m_start_pos = (int)m_input.Position;
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m_stride = (int)Info.Width * Format.BitsPerPixel / 8;
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}
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protected virtual void ReadHeader ()
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{
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Format = PixelFormats.Bgr24;
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Info = new ImageMetaData {
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Width = m_input.ReadUInt16(),
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Height = m_input.ReadUInt16(),
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BPP = 24,
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};
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m_first_pixel_size = 1;
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}
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protected override ImageData GetImageData ()
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{
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m_input.Position = m_start_pos;
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var data = ReadDataBytes();
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using (var bits = new MsbBitStream (m_input.AsStream, true))
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{
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var pixels = new byte[m_stride * (int)Info.Height];
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if (24 == Info.BPP)
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Unpack24bpp (bits, data, pixels);
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else
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Unpack8bpp (bits, data, pixels);
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return ImageData.Create (Info, Format, null, pixels);
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}
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}
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protected void Unpack24bpp (MsbBitStream bits, byte[] data, byte[] output)
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{
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int src = 0, dst = 0;
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for (int i = 0; i < m_first_pixel_size; ++i)
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output[dst++] = data[src++];
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while (dst < output.Length)
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{
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int ctl = bits.GetBits (2);
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byte v;
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if (0 == ctl)
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{
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v = data[src++];
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}
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else
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{
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v = output[dst-3];
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if (ctl == 2)
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{
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if (bits.GetNextBit() != 0)
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v -= 1;
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else
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v += 1;
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}
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else if (ctl == 3)
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{
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ctl = bits.GetBits (2);
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if (ctl == 2)
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{
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if (bits.GetNextBit() != 0)
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v -= 3;
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else
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v += 3;
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}
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else if (ctl == 3)
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{
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ctl = bits.GetBits (2);
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if (ctl == 2)
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{
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if (bits.GetNextBit() != 0)
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v -= 5;
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else
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v += 5;
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}
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else if (ctl == 3)
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{
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switch (bits.GetBits (2))
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{
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case 3: v -= 7; break;
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case 2: v += 7; break;
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case 1: v -= 6; break;
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default: v += 6; break;
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}
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}
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else if (ctl == 1)
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v -= 4;
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else
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v += 4;
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}
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else if (ctl == 1)
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v -= 2;
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else
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v += 2;
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}
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}
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output[dst++] = v;
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}
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}
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protected void Unpack8bpp (MsbBitStream bits, byte[] data, byte[] output)
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{
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int src = 0;
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int dst = 0;
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byte init_value = data[src++];
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output[dst++] = init_value;
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int bit_count = 0;
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int y = 0;
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int x = 1;
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while (dst < output.Length)
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{
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int ctl = bits.GetBits (2);
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if (0 == ctl)
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{
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int count;
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if (bit_count > 0)
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count = bits.GetBits (14 - bit_count);
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else
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count = bits.GetBits (6);
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while (count --> 0 && dst < output.Length)
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{
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if (y == 0 || x + 1 == m_stride)
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output[dst] = init_value;
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else
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output[dst] = output[dst - m_stride + 1];
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++dst;
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if (++x == m_stride)
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{
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x = 0;
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++y;
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}
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}
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bit_count = 0;
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continue;
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}
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else if (1 == ctl)
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{
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bit_count += 2;
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if (0 == x)
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output[dst] = init_value;
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else
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output[dst] = output[dst - m_stride - 1];
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}
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else if (2 == ctl)
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{
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bit_count += 2;
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output[dst] = data[src++];
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}
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else
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{
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bit_count += 3;
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if (bits.GetNextBit() != 0)
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output[dst] = output[dst - m_stride];
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else
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output[dst] = output[dst-1];
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}
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++dst;
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if (++x == m_stride)
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{
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x = 0;
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++y;
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}
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if (bit_count >= 8)
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bit_count -= 8;
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}
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if (8 == Info.BPP)
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{
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byte max = m_max_pixel; // System.Linq.Enumerable.Max (output);
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if (max != 0 && max != 0xFF)
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{
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for (int i = 0; i < output.Length; ++i)
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output[i] = (byte)(output[i] * 0xFF / max);
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}
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}
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}
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protected byte[] ReadDataBytes ()
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{
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uint data_pos = m_input.ReadUInt32();
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long ctl_pos = m_input.Position;
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m_input.Seek (data_pos, SeekOrigin.Current);
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var data = m_input.ReadBytes ((int)(m_input.Length - data_pos));
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if (0 == data.Length)
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throw new InvalidFormatException();
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m_input.Position = ctl_pos;
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return data;
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}
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}
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internal sealed class PackMaskDecoder : PackImageDecoder
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{
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public PackMaskDecoder (IBinaryStream input) : base (input) { }
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protected override void ReadHeader ()
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{
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Format = PixelFormats.Gray8;
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Info = new ImageMetaData {
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Width = m_input.ReadUInt16(),
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Height = m_input.ReadUInt16(),
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BPP = 8
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};
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}
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}
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internal class Pack2ImageDecoder : PackImageDecoder
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{
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public Pack2ImageDecoder (IBinaryStream input) : base (input) { }
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protected override void ReadHeader ()
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{
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Info = new ImageMetaData {
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OffsetX = m_input.ReadInt16(),
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OffsetY = m_input.ReadInt16(),
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Width = m_input.ReadUInt16(),
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Height = m_input.ReadUInt16(),
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BPP = m_input.ReadUInt16(),
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};
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if (Info.BPP < 4 || Info.BPP > 24)
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throw new InvalidFormatException();
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m_first_pixel_size = 3;
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Format = Info.BPP == 24 ? PixelFormats.Bgr24
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: Info.BPP == 4 ? PixelFormats.Gray4
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: PixelFormats.Gray8;
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}
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}
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}
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