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(Legacy): FD bitmaps.

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morkt 2019-03-30 18:45:18 +04:00
parent 8894767e35
commit b35a80dcdc
5 changed files with 896 additions and 0 deletions
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215
ArcFormats/Key/ArcPAK.cs Normal file
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//! \file ArcPAK.cs
//! \date 2018 Nov 23
//! \brief Key resource archive.
//
// Copyright (C) 2018 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Linq;
using System.Text;
namespace GameRes.Formats.Key
{
[Export(typeof(ArchiveFormat))]
public class PakOpener : ArchiveFormat
{
public override string Tag { get { return "PAK/KEY"; } }
public override string Description { get { return "Key resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
static Encoding DefaultEncoding = Encoding.UTF8;
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (4);
if (!IsSaneCount (count))
return null;
uint data_offset = file.View.ReadUInt32 (0);
if (data_offset <= 0x24 || data_offset >= file.MaxOffset)
return null;
uint block_size = file.View.ReadUInt32 (0xC);
if (0 == block_size)
return null;
uint first_offset = data_offset / block_size;
if (first_offset * block_size != data_offset)
return null;
byte flags = file.View.ReadByte (0x21);
uint index_offset = 0x24;
while (index_offset < data_offset)
{
if (file.View.ReadUInt32 (index_offset) == first_offset)
break;
index_offset += 4;
}
if (index_offset == data_offset)
return null;
string[] names;
if ((flags & 2) != 0) // index has names
{
var encoding = DefaultEncoding;
names = new string[count];
using (var input = file.CreateStream())
{
uint names_offset = file.View.ReadUInt32 (index_offset - 4);
input.Position = names_offset;
for (int i = 0; i < count; ++i)
{
names[i] = input.ReadCString (encoding);
}
}
}
else
{
names = Enumerable.Range (0, count).Select (x => x.ToString ("D5")).ToArray();
}
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var entry = new Entry { Name = names[i] };
entry.Offset = (long)file.View.ReadUInt32 (index_offset) * block_size;
entry.Size = file.View.ReadUInt32 (index_offset+4);
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
index_offset += 8;
}
foreach (var entry in dir)
{
uint signature = file.View.ReadUInt32 (entry.Offset);
entry.ChangeType (AutoEntry.DetectFileType (signature));
}
return new ArcFile (file, this, dir);
}
}
/*
internal sealed class PakDeserializer : IDisposable
{
IBinaryStream m_input;
int m_data_offset;
int m_count1;
int m_count2;
int m_count3;
int field_58;
int field_5C;
int field_60;
int field_64;
int field_68;
public PakDeserializer (IBinaryStream input)
{
m_input = input;
}
public void Read ()
{
m_input.Position = 0;
ReadHeader();
}
void ReadHeader ()
{
m_data_offset = ReadInt32();
m_count1 = ReadInt32();
m_count2 = ReadInt32();
m_count3 = ReadInt32();
ReadInt32();
ReadInt32();
ReadInt32();
ReadInt32();
int n = ReadUInt8();
int flag = ReadBit();
ReadBit();
for (int i = 0; i < n; ++i)
{
int val1 = ReadUInt8();
int val2 = ReadUInt8();
int val3 = ReadUInt32();
}
ReadAlign();
field_58 = ReadInt32();
field_60 = (int)m_input.Position;
if (flag != 0)
{
field_68 = field_60 + 8 * m_count1;
m_input.Position = field_68;
}
if (field_58 != 0)
{
field_5C = m_data_offset - field_58;
}
}
int m_bit_pos;
byte m_bits;
int ReadInt32 ()
{
if (m_bit_pos != 0)
m_bit_pos = 0;
return m_input.ReadInt32();
}
byte ReadUInt8 ()
{
if (m_bit_pos != 0)
m_bit_pos = 0;
return m_input.ReadUInt8();
}
int ReadBit ()
{
if (0 == m_bit_pos)
{
m_bits = m_input.ReadUInt8();
m_bit_pos = 8;
}
return (m_bits >> --m_bit_pos) & 1;
}
byte[] m_align_buf = new byte[4];
int ReadAlign ()
{
int pos_align = (int)m_input.Position & 3;
if (pos_align != 0)
m_input.Read (m_align_buf, 0, 4 - pos_align);
}
bool m_disposed = false;
public void Dispose ()
{
if (!m_disposed)
{
m_input.Dispose();
m_disposed = true;
}
}
}
*/
}

48
ArcFormats/Key/AudioOGGPAK.cs Normal file
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//! \file AudioOGGPAK.cs
//! \date 2019 Mar 29
//! \brief Key audio resource.
//
// Copyright (C) 2019 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
using System.ComponentModel.Composition;
namespace GameRes.Formats.Key
{
[Export(typeof(AudioFormat))]
public class OggPakAudio : AudioFormat
{
public override string Tag { get { return "OGGPAK"; } }
public override string Description { get { return "Key audio resource"; } }
public override uint Signature { get { return 0x5047474F; } } // 'OGGPAK'
public override bool CanWrite { get { return false; } }
public override SoundInput TryOpen (IBinaryStream file)
{
var header = file.ReadHeader (0xF);
if (!header.AsciiEqual ("OGGPAK"))
return null;
uint length = header.ToUInt32 (0xB);
var input = new StreamRegion (file.AsStream, 0xF, length);
return new OggInput (input);
}
}
}

262
ArcFormats/Key/ImageCZ.cs Normal file
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//! \file ImageCZ.cs
//! \date 2019 Mar 14
//! \brief Real Live compressed image format.
//
// Copyright (C) 2019 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using GameRes.Utility;
namespace GameRes.Formats.Key
{
internal class CzMetaData : ImageMetaData
{
public int Version;
public uint HeaderLength;
}
[Export(typeof(ImageFormat))]
public class CzFormat : ImageFormat
{
public override string Tag { get { return "CZ"; } }
public override string Description { get { return "Key compressed image format"; } }
public override uint Signature { get { return 0x315A43; } } // 'CZ1'
public CzFormat ()
{
Extensions = new[] { "cz", "cz0", "cz1", "cz3" };
Signatures = new uint[] { 0x305A43, 0x315A43, 0x335A43 }; // 'CZ0', 'CZ1', 'CZ3'
}
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0x10);
var info = new CzMetaData {
Width = header.ToUInt16 (8),
Height = header.ToUInt16 (10),
BPP = header.ToUInt16 (12),
HeaderLength = header.ToUInt32 (4),
Version = header[2] - '0',
};
if (info.HeaderLength > 0x18)
{
info.OffsetX = file.ReadInt16();
info.OffsetY = file.ReadInt16();
}
return info;
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var reader = new CzDecoder (file, (CzMetaData)info);
return reader.Unpack();
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("CzFormat.Write not implemented");
}
}
internal class CzDecoder
{
IBinaryStream m_input;
CzMetaData m_info;
BitmapPalette Palette { get; set; }
PixelFormat Format { get; set; }
public CzDecoder (IBinaryStream input, CzMetaData info)
{
m_input = input;
m_info = info;
m_output = new byte[m_info.iWidth * m_info.iHeight * m_info.BPP / 8];
Format = 8 == m_info.BPP ? PixelFormats.Indexed8 : PixelFormats.Bgra32;
}
byte[] m_output;
int m_dst;
public ImageData Unpack ()
{
m_input.Position = m_info.HeaderLength;
if (8 == m_info.BPP)
Palette = ImageFormat.ReadPalette (m_input.AsStream, 0x100, PaletteFormat.RgbA);
switch (m_info.Version)
{
case 3: UnpackCz3(); break;
case 2: UnpackCz2(); break;
case 1: UnpackCz1(); break;
case 0: UnpackCz0(); break;
}
if (32 == m_info.BPP)
ConvertToBgrA();
return ImageData.Create (m_info, Format, Palette, m_output);
}
void UnpackCz0 ()
{
m_input.Read (m_output, 0, m_output.Length);
}
void UnpackCz1 ()
{
int part_count = m_input.ReadInt32();
var part_sizes = new int[part_count];
int total_size = 0;
for (int i = 0; i < part_count; ++i)
{
int part_size = m_input.ReadInt32() * 2;
part_sizes[i] = part_size;
m_input.ReadInt32(); // unpacked size
total_size += part_size;
}
if (m_input.Position + total_size > m_input.Length)
throw new InvalidFormatException();
m_dst = 0;
for (int i = 0; i < part_count; ++i)
{
m_chunkCache.Clear();
var part = m_input.ReadBytes (part_sizes[i]);
for (int j = 0; j < part.Length; j += 2)
{
byte ctl = part[j+1];
if (0 == ctl)
{
m_output[m_dst++] = part[j];
}
else
{
m_dst += CopyRange (part, GetOffset (part, j), m_dst);
}
}
}
}
void UnpackCz2 ()
{
UnpackCz1();
int stride = m_info.iWidth * m_info.BPP / 8 / 4;
var pixels = new uint[m_output.Length / 4];
Buffer.BlockCopy (m_output, 0, pixels, 0, m_output.Length);
int third = (m_info.iHeight + 2) / 3;
for (int y = 0; y < m_info.iHeight; ++y)
{
int dst = m_info.iWidth * y;
if (y % third != 0)
{
for (int x = 0; x < stride; ++x)
{
pixels[dst + x] += pixels[dst + x - stride];
}
}
}
Buffer.BlockCopy (pixels, 0, m_output, 0, m_output.Length);
}
void UnpackCz3 ()
{
UnpackCz1();
int stride = m_info.iWidth * m_info.BPP / 8;
int third = (m_info.iHeight + 2) / 3;
for (int y = 0; y < m_info.iHeight; ++y)
{
int dst = y * stride;
if (y % third != 0)
{
for (int x = 0; x < stride; ++x)
{
m_output[dst + x] += m_output[dst + x - stride];
}
}
}
}
void ConvertToBgrA ()
{
for (int i = 0; i < m_output.Length; i += 4)
{
byte r = m_output[i];
m_output[i] = m_output[i+2];
m_output[i+2] = r;
}
}
struct Range
{
public int Start;
public int Length;
}
readonly Dictionary<int, Range> m_chunkCache = new Dictionary<int, Range>();
static int GetOffset (byte[] input, int src)
{
return ((input[src] | input[src+1] << 8) - 0x101) * 2;
}
int CopyRange (byte[] input, int src, int dst)
{
Range range;
if (m_chunkCache.TryGetValue (src, out range))
{
Binary.CopyOverlapped (m_output, range.Start, dst, range.Length);
return range.Length;
}
int start_pos = dst;
if (input[src+1] == 0)
m_output[dst++] = input[src];
else if (GetOffset (input, src) == src)
m_output[dst++] = 0;
else
dst += CopyRange (input, GetOffset (input, src), dst);
if (input[src+3] == 0)
m_output[dst++] = input[src+2];
else if (GetOffset (input, src+2) == src)
m_output[dst++] = m_output[start_pos];
else
m_output[dst++] = CopyOne (input, GetOffset (input, src+2));
range.Start = start_pos;
range.Length = dst - start_pos;
m_chunkCache[src] = range;
return range.Length;
}
byte CopyOne (byte[] input, int src)
{
if (input[src+1] == 0)
return input[src];
else if (GetOffset (input, src) == src)
return 0;
else
return CopyOne (input, GetOffset (input, src));
}
}
}

10
Legacy/Legacy.csproj
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@ -75,6 +75,9 @@
<Compile Include="Airyu\ArcCHR.cs" />
<Compile Include="Akatombo\ArcX.cs" />
<Compile Include="Akatombo\ImageFB.cs" />
<Compile Include="AlphaSystem\ArcPAK.cs" />
<Compile Include="AlphaSystem\ImageSFG.cs" />
<Compile Include="Alterna\ArcBIN.cs" />
<Compile Include="Aquarium\ArcAAP.cs" />
<Compile Include="Aquarium\ArcCPA.cs" />
<Compile Include="Aquarium\ImageCP2.cs" />
@ -108,9 +111,16 @@
<Compile Include="Melonpan\ArcTTD.cs" />
<Compile Include="Mermaid\AudioPWV.cs" />
<Compile Include="Mermaid\ImageGP1.cs" />
<Compile Include="Mink\ImageFC.cs" />
<Compile Include="Mink\ImageFD.cs" />
<Compile Include="Mmfass\ArcSDA.cs" />
<Compile Include="Nyoken\ArcZLK.cs" />
<Compile Include="PenguinWorks\ArcPAC.cs" />
<Compile Include="PineSoft\ArcCMB.cs" />
<Compile Include="PineSoft\ArcVoice.cs" />
<Compile Include="PineSoft\AudioCMB.cs" />
<Compile Include="PineSoft\ImageBPD.cs" />
<Compile Include="Pochette\ArcPAC.cs" />
<Compile Include="Powerd\ImageNCL.cs" />
<Compile Include="PrimeSoft\ImageTHP.cs" />
<Compile Include="ProjectMyu\ImageGAM.cs" />

361
Legacy/Mink/ImageFD.cs Normal file
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@ -0,0 +1,361 @@
//! \file ImageFD.cs
//! \date 2019 Mar 27
//! \brief Mink compressed bitmap format.
//
// Copyright (C) 2019 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
using System;
using System.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
namespace GameRes.Formats.Mink
{
[Export(typeof(ImageFormat))]
public class FdFormat : ImageFormat
{
public override string Tag { get { return "BMP/FD"; } }
public override string Description { get { return "Mink compressed bitmap format"; } }
public override uint Signature { get { return 0; } }
public FdFormat ()
{
Signatures = new uint[] { 0x00186446, 0x00184446, 0x00206446, 0 };
}
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0x10);
if (header[0] != 'F' || (header[1] & 0x5F) != 'D' || header[3] > 1)
return null;
int bpp = header[2];
if (bpp != 24 && bpp != 32)
return null;
return new FcMetaData {
Width = header.ToUInt16 (4),
Height = header.ToUInt16 (6),
BPP = bpp,
Flag = header[3],
};
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var reader = new FdReader (file, (FcMetaData)info);
return reader.Unpack();
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("FdFormat.Write not implemented");
}
}
internal class FdReader
{
IBinaryStream m_input;
FcMetaData m_info;
public FdReader (IBinaryStream input, FcMetaData info)
{
m_input = input;
m_info = info;
}
public ImageData Unpack ()
{
m_input.Position = 16;
var output = new uint[m_info.iWidth * m_info.iHeight];
UnpackRgb (output);
if (32 == m_info.BPP)
UnpackAlpha (output);
PixelFormat format = 32 == m_info.BPP ? PixelFormats.Bgra32 : PixelFormats.Bgr32;
return ImageData.CreateFlipped (m_info, format, null, output, m_info.iWidth * 4);
}
byte m_cur_bits;
void UnpackRgb (uint[] output)
{
InitOffsetTable();
int dst = 0;
m_cur_bits = 0x80;
while (dst < output.Length)
{
int ctl = ReadNext();
int code = ControlTable[ctl - 2];
if (code < 20)
{
if (code < 2)
{
uint pixel = (uint)m_input.ReadUInt8() << 24;
pixel += (uint)m_input.ReadUInt8() << 16;
pixel += (uint)m_input.ReadUInt8() << 8;
pixel ^= 0x80000080;
pixel >>= FlowMap5[m_cur_bits];
output[dst++] = (pixel >> 8) ^ ((uint)m_cur_bits << 16);
m_cur_bits = (byte)pixel;
}
else
{
int pixel = (int)output[dst + m_offset_table[code - 2]];
int r = ReadNext();
pixel += (((r - 2) << 15) ^ -((r & 1) << 15));
int g = ReadNext();
pixel += (((g - 2) << 7) ^ -((g & 1) << 7));
int b = ReadNext();
output[dst++] = (uint)((((b - 2) ^ -(b & 1)) >> 1) + pixel);
}
}
else // code >= 20
{
int y = ReadNext();
int x = ReadNext();
int src = dst + (((y & 1) - 1) ^ (x - 2)) - m_info.iWidth * ((y >> 1) + (y & 1) - 1);
int count = ReadNext() - 1;
if (code == 38)
{
while (count --> 0)
{
output[dst++] = output[src++];
}
}
else
{
int offset = m_offset_table[code - 20]; // dword_5D51F8[code];
while (count --> 0)
{
uint pixel = output[src] + output[dst + offset] - output[src + offset];
output[dst++] = pixel;
++src;
}
}
}
}
}
void UnpackAlpha (uint[] output)
{
int dst = 0;
while (dst < output.Length)
{
int shift = 8 - FlowMap5[m_cur_bits];
uint ctl, alpha;
if (shift <= 0)
{
alpha = m_cur_bits;
ctl = 0;
}
else
{
ctl = (uint)m_cur_bits >> shift;
if (shift > 8)
{
int v94 = ((shift - 9) >> 3) + 1;
do
{
ctl <<= 8;
ctl += m_input.ReadUInt8();
shift -= 8;
--v94;
}
while (v94 > 0);
}
m_cur_bits = m_input.ReadUInt8();
alpha = (ctl << shift) + ((uint)m_cur_bits >> (8 - shift));
ctl &= ~0xFFu;
ctl |= ((uint)(m_cur_bits << shift) + (1u << (shift - 1))) & 0xFFu;
}
m_cur_bits = (byte)ctl;
ctl &= 0xFFu;
int v96 = FlowMap3[m_cur_bits];
m_cur_bits = FlowMap1[m_cur_bits];
if (0 == m_cur_bits)
{
do
{
m_cur_bits = m_input.ReadUInt8();
v96 += FlowMap4[m_cur_bits];
}
while (0 == FlowMap2[m_cur_bits]);
m_cur_bits = FlowMap2[m_cur_bits];
}
int v98 = FlowMap5[m_cur_bits];
int count, bits;
if (v96 <= v98)
{
count = (m_cur_bits + 256) >> (8 - v96);
bits = m_cur_bits << v96;
}
else // v96 > v98
{
int v99 = v96 - v98;
int v100 = (m_cur_bits + 256) >> (8 - v98);
if (v99 > 8)
{
int v101 = (int)(((uint)(v99 - 9) >> 3) + 1);
v99 -= v101 << 3;
do
{
v100 = m_input.ReadUInt8() + (v100 << 8);
--v101;
}
while (v101 > 0);
}
m_cur_bits = m_input.ReadUInt8();
count = (int)((v100 << v99) + ((uint)m_cur_bits >> (8 - v99)));
bits = (m_cur_bits << v99) + (1 << (v99 - 1));
}
m_cur_bits = (byte)bits;
count = Math.Min (count - 1, output.Length - dst);
alpha <<= 24;
while (count --> 0)
{
uint px = output[dst] & 0xFFFFFFu;
output[dst++] = px | alpha;
}
}
}
int ReadNext ()
{
int shift = FlowMap3[m_cur_bits];
m_cur_bits = FlowMap1[m_cur_bits];
if (0 == m_cur_bits)
{
do
{
m_cur_bits = m_input.ReadUInt8();
shift += FlowMap4[m_cur_bits];
}
while (0 == FlowMap2[m_cur_bits]);
m_cur_bits = FlowMap2[m_cur_bits];
}
int bits = m_cur_bits + 256;
int v12 = FlowMap5[m_cur_bits];
if (shift > v12)
{
bits <<= v12;
bits &= ~0xFF;
bits += m_input.ReadUInt8();
shift -= v12 + 1;
if (shift >= 8)
{
int count = shift >> 3;
shift -= count << 3;
do
{
bits += m_input.ReadUInt8();
bits <<= 8;
--count;
}
while (count > 0);
}
bits = bits << 1 | 1;
shift &= 0xFF;
}
bits <<= shift;
m_cur_bits = (byte)bits;
return bits >> 8;
}
int[] m_offset_table = new int[18];
static readonly sbyte[] OffsetsX = { -1, 0, 1, -1, 0, -2, 0, -3, 0, -4, 0, -5, 0, -6, 0, -7, 0, -8 };
static readonly sbyte[] OffsetsY = { 0, -1, -1, -1, -2, 0, -3, 0, -4, 0, -5, 0, -6, 0, -7, 0, -8, 0 };
static readonly byte[] ControlTable = new byte[38];
static readonly byte[] ControlMap = new byte[] {
2, 1, 0, 3, 4, 5, 10, 11, 12, 13, 14, 15, 22, 23, 24, 25, 26, 27, 28, 29,
6, 8, 7, 9, 16, 17, 18, 19, 20, 21, 30, 31, 32, 33, 34, 35, 36, 37
};
void InitOffsetTable ()
{
for (int i = 0; i < 18; ++i)
{
m_offset_table[i] = OffsetsX[i] + m_info.iWidth * OffsetsY[i];
}
}
static readonly byte[] FlowMap1 = new byte[256];
static readonly byte[] FlowMap2 = new byte[256];
static readonly byte[] FlowMap3 = new byte[256];
static readonly byte[] FlowMap4 = new byte[256];
static readonly byte[] FlowMap5 = new byte[256];
static FdReader ()
{
for (int i = 0; i < 38; ++i)
{
if (1 == i)
ControlTable[1] = 38;
else
ControlTable[ControlMap[i]] = (byte)i;
}
for (int i = 0; i < 256; ++i)
{
sbyte v = (sbyte)i;
byte n = 0;
if (i > 0)
{
while (v < 0)
{
v <<= 1;
++n;
}
v <<= 1;
if (0 == v)
--n;
}
FlowMap1[i] = (byte)v;
FlowMap3[i] = ++n;
v = (sbyte)i;
n = 0;
if (i > 0)
{
while (v < 0)
{
v <<= 1;
++n;
}
v <<= 1;
}
FlowMap4[i] = n;
FlowMap2[i] = (byte)(v + (1 << n));
v = (sbyte)i;
n = 0;
while ((v & 0x7F) != 0)
{
v <<= 1;
++n;
}
FlowMap5[i] = n;
}
}
}
}