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implemented Bishop BSA archives and BSG images.

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morkt
2015-10-24 20:20:24 +04:00
parent f901f8252f
commit d8a1109ddb
5 changed files with 521 additions and 0 deletions
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ArcFormats/Bishop/ImageBSG.cs Normal file
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//! \file ImageBSG.cs
//! \date Sat Oct 24 17:07:43 2015
//! \brief Bishop graphics image.
//
// 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 GameRes.Utility;
using System;
using System.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
using System.Windows.Media.Imaging;
namespace GameRes.Formats.Bishop
{
internal class BsgMetaData : ImageMetaData
{
public int BaseOffset;
public int UnpackedSize;
public int ColorMode;
public int CompressionMode;
public int DataOffset;
public int DataSize;
public int PaletteOffset;
}
[Export(typeof(ImageFormat))]
public class BsgFormat : ImageFormat
{
public override string Tag { get { return "BSG"; } }
public override string Description { get { return "Bishop image format"; } }
public override uint Signature { get { return 0x2D535342; } } // 'BSS-'
public override ImageMetaData ReadMetaData (Stream stream)
{
var header = new byte[0x60];
if (header.Length != stream.Read (header, 0, header.Length))
return null;
int base_offset = 0;
if (Binary.AsciiEqual (header, 0, "BSS-Composition\0"))
base_offset = 0x20;
if (!Binary.AsciiEqual (header, base_offset, "BSS-Graphics\0"))
return null;
int type = header[base_offset+0x30];
if (type > 2)
return null;
return new BsgMetaData
{
Width = LittleEndian.ToUInt16 (header, base_offset+0x16),
Height = LittleEndian.ToUInt16 (header, base_offset+0x18),
OffsetX = LittleEndian.ToInt16 (header, base_offset+0x20),
OffsetY = LittleEndian.ToInt16 (header, base_offset+0x22),
UnpackedSize = LittleEndian.ToInt32 (header, base_offset+0x12),
BPP = 2 == type ? 8 : 32,
ColorMode = type,
CompressionMode = header[base_offset+0x31],
DataOffset = LittleEndian.ToInt32 (header, base_offset+0x32)+base_offset,
DataSize = LittleEndian.ToInt32 (header, base_offset+0x36),
PaletteOffset = LittleEndian.ToInt32 (header, base_offset+0x3A)+base_offset,
};
}
public override ImageData Read (Stream stream, ImageMetaData info)
{
var meta = (BsgMetaData)info;
using (var reader = new BsgReader (stream, meta))
{
reader.Unpack();
return ImageData.CreateFlipped (info, reader.Format, reader.Palette, reader.Data, reader.Stride);
}
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("xxxFormat.Write not implemented");
}
}
internal sealed class BsgReader : IDisposable
{
BinaryReader m_input;
BsgMetaData m_info;
byte[] m_output;
public byte[] Data { get { return m_output; } }
public PixelFormat Format { get; private set; }
public BitmapPalette Palette { get; private set; }
public int Stride { get; private set; }
public BsgReader (Stream input, BsgMetaData info)
{
m_info = info;
if (m_info.CompressionMode > 2)
throw new NotSupportedException ("Not supported BSS Graphics compression");
m_input = new ArcView.Reader (input);
m_output = new byte[m_info.UnpackedSize];
switch (m_info.ColorMode)
{
case 0:
Format = PixelFormats.Bgra32;
Stride = (int)m_info.Width * 4;
break;
case 1:
Format = PixelFormats.Bgr32;
Stride = (int)m_info.Width * 4;
break;
case 2:
Format = PixelFormats.Indexed8;
Stride = (int)m_info.Width;
Palette = ReadPalette();
break;
}
}
public void Unpack ()
{
m_input.BaseStream.Position = m_info.DataOffset;
if (0 == m_info.CompressionMode)
{
if (1 == m_info.ColorMode)
{
int dst = 0;
for (int count = m_info.DataSize / 3; count > 0; --count)
{
m_input.Read (m_output, dst, 3);
dst += 4;
}
}
else
{
m_input.Read (m_output, 0, m_info.DataSize);
}
}
else
{
Action<int, int> unpacker;
if (1 == m_info.CompressionMode)
unpacker = UnpackRle;
else
unpacker = UnpackLz;
if (0 == m_info.ColorMode)
{
for (int channel = 0; channel < 4; ++channel)
unpacker (channel, 4);
}
else if (1 == m_info.ColorMode)
{
for (int channel = 0; channel < 3; ++channel)
unpacker (channel, 4);
}
else
{
unpacker (0, 1);
}
}
}
void UnpackRle (int dst, int pixel_size)
{
int remaining = m_input.ReadInt32();
while (remaining > 0)
{
int count = m_input.ReadSByte();
--remaining;
if (count >= 0)
{
for (int i = 0; i <= count; ++i)
{
m_output[dst] = m_input.ReadByte();
--remaining;
dst += pixel_size;
}
}
else
{
count = 1 - count;
byte repeat = m_input.ReadByte();
--remaining;
for (int i = 0; i < count; ++i)
{
m_output[dst] = repeat;
dst += pixel_size;
}
}
}
}
void UnpackLz (int plane, int pixel_size)
{
int dst = plane;
byte control = m_input.ReadByte();
int remaining = m_input.ReadInt32() - 5;
while (remaining > 0)
{
byte c = m_input.ReadByte();
--remaining;
if (c == control)
{
int offset = m_input.ReadByte();
--remaining;
if (offset != control)
{
int count = m_input.ReadByte();
--remaining;
if (offset > control)
--offset;
offset *= pixel_size;
while (count --> 0)
{
m_output[dst] = m_output[dst-offset];
dst += pixel_size;
}
continue;
}
}
m_output[dst] = c;
dst += pixel_size;
}
for (int i = plane + pixel_size; i < m_output.Length; i += pixel_size)
m_output[i] += m_output[i-pixel_size];
}
BitmapPalette ReadPalette ()
{
m_input.BaseStream.Position = m_info.PaletteOffset;
var palette_data = new byte[0x400];
if (palette_data.Length != m_input.Read (palette_data, 0, palette_data.Length))
throw new InvalidFormatException();
var palette = new Color[0x100];
for (int i = 0; i < palette.Length; ++i)
{
int c = i * 4;
palette[i] = Color.FromRgb (palette_data[c+2], palette_data[c+1], palette_data[c]);
}
return new BitmapPalette (palette);
}
#region IDisposable Members
bool _disposed = false;
public void Dispose ()
{
if (!_disposed)
{
m_input.Dispose();
_disposed = true;
}
}
#endregion
}
}