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implemented ISG image format.

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This commit is contained in:
morkt 2015-03-20 02:21:44 +04:00
parent 87c6a210be
commit b74a9f9265
3 changed files with 220 additions and 2 deletions
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1
ArcFormats/ArcFormats.csproj
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@ -127,6 +127,7 @@
<Compile Include="ImageEDT.cs" />
<Compile Include="ImageGCP.cs" />
<Compile Include="ImageHG3.cs" />
<Compile Include="ImageISG.cs" />
<Compile Include="ImageRCT.cs" />
<Compile Include="ImageTGF.cs" />
<Compile Include="ImageTLG.cs" />

217
ArcFormats/ImageISG.cs Normal file
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@ -0,0 +1,217 @@
//! \file ImageISG.cs
//! \date Tue Mar 17 10:01:44 2015
//! \brief ISM engine image format.
//
// Copyright (C) 2015 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.Text;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using GameRes.Utility;
namespace GameRes.Formats.ISM
{
internal class IsgMetaData : ImageMetaData
{
public byte Type;
public int Colors;
public uint Packed;
public uint Unpacked;
}
[Export(typeof(ImageFormat))]
public class IsgFormat : ImageFormat
{
public override string Tag { get { return "ISG"; } }
public override string Description { get { return "ISM engine image format"; } }
public override uint Signature { get { return 0x204d5349u; } } // 'ISM '
public override void Write (Stream file, ImageData image)
{
throw new NotImplementedException ("IsgFormat.Write not implemented");
}
public override ImageMetaData ReadMetaData (Stream stream)
{
var header = new byte[0x24];
if (header.Length != stream.Read (header, 0, header.Length))
return null;
if (!Binary.AsciiEqual (header, "ISM IMAGEFILE\x00"))
return null;
int colors = header[0x23];
if (0 == colors)
colors = 256;
return new IsgMetaData
{
Width = LittleEndian.ToUInt16 (header, 0x1d),
Height = LittleEndian.ToUInt16 (header, 0x1f),
BPP = 8,
Type = header[0x10],
Colors = colors,
Packed = LittleEndian.ToUInt32 (header, 0x11),
Unpacked = LittleEndian.ToUInt32 (header, 0x15),
};
}
public override ImageData Read (Stream stream, ImageMetaData info)
{
var meta = info as IsgMetaData;
if (null == meta)
throw new ArgumentException ("IsgFormat.Read should be supplied with IsgMetaData", "info");
if (0x21 != meta.Type && 0x10 != meta.Type)
throw new InvalidFormatException ("Unsupported ISM image type");
stream.Position = 0x30;
using (var input = new Reader (stream, meta))
{
if (0x21 == meta.Type)
input.Unpack21();
else
input.Unpack10();
byte[] pixels = input.Data;
var palette = new BitmapPalette (input.Palette);
var bitmap = BitmapSource.Create ((int)info.Width, (int)info.Height, 96, 96,
PixelFormats.Indexed8, palette, pixels, (int)info.Width);
var flipped = new TransformedBitmap (bitmap, new ScaleTransform { ScaleY = -1 });
flipped.Freeze();
return new ImageData (flipped, info);
}
}
internal class Reader : IDisposable
{
BinaryReader m_input;
byte[] m_data;
Color[] m_palette;
int m_input_size;
public Color[] Palette { get { return m_palette; } }
public byte[] Data { get { return m_data; } }
public Reader (Stream file, IsgMetaData info)
{
int palette_size = (int)info.Colors*4;
var palette_data = new byte[Math.Max (0x400, palette_size)];
if (palette_size != file.Read (palette_data, 0, palette_size))
throw new InvalidFormatException();
m_palette = new Color[0x100];
for (int i = 0; i < m_palette.Length; ++i)
{
m_palette[i] = Color.FromRgb (palette_data[i*4+2], palette_data[i*4+1], palette_data[i*4]);
}
m_input = new BinaryReader (file, Encoding.ASCII, true);
m_input_size = (int)info.Packed;
m_data = new byte[info.Width * info.Height];
}
public void Unpack21 ()
{
int dst = 0;
var frame = new byte[2048];
int frame_pos = 2039;
int remaining = m_input_size;
byte ctl = m_input.ReadByte();
--remaining;
int bit = 0x80;
while (remaining > 0)
{
if (0 != (ctl & bit))
{
byte hi = m_input.ReadByte();
byte lo = m_input.ReadByte();
remaining -= 2;
int offset = (hi & 7) << 8 | lo;
for (int count = (hi >> 3) + 3; count > 0; --count)
{
byte p = frame[offset];
frame[frame_pos] = p;
m_data[dst++] = p;
offset = (offset + 1) & 0x7ff;
frame_pos = (frame_pos + 1) & 0x7ff;
}
}
else
{
byte p = m_input.ReadByte();
--remaining;
m_data[dst++] = p;
frame[frame_pos] = p;
frame_pos = (frame_pos + 1) & 0x7ff;
}
if (0 == (bit >>= 1))
{
ctl = m_input.ReadByte();
--remaining;
bit = 0x80;
}
}
}
public void Unpack10 ()
{
int dst = 0;
int remaining = m_input_size;
byte ctl = m_input.ReadByte();
--remaining;
int bit = 1;
while (remaining > 0)
{
byte p = m_input.ReadByte();
--remaining;
if (0 != (ctl & bit))
{
for (int count = 2 + m_input.ReadByte(); count > 0; --count)
m_data[dst++] = p;
--remaining;
}
else
{
m_data[dst++] = p;
}
if (0x100 == (bit <<= 1))
{
ctl = m_input.ReadByte();
--remaining;
bit = 1;
}
}
}
#region IDisposable Members
public void Dispose ()
{
if (null != m_input)
{
m_input.Dispose();
m_input = null;
}
GC.SuppressFinalize (this);
}
#endregion
}
}
}

4
ArcFormats/Properties/AssemblyInfo.cs
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@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
// You can specify all the values or you can default the Build and Revision Numbers
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion ("1.0.4.31")]
[assembly: AssemblyFileVersion ("1.0.4.31")]
[assembly: AssemblyVersion ("1.0.4.32")]
[assembly: AssemblyFileVersion ("1.0.4.32")]