mirror of
https://github.com/crskycode/GARbro.git
synced 2024-12-29 14:24:13 +08:00
320 lines
10 KiB
C#
320 lines
10 KiB
C#
//! \file ImageKG.cs
|
|
//! \date Wed Oct 19 15:51:18 2016
|
|
//! \brief AbogadoPowers image format.
|
|
//
|
|
// Copyright (C) 2016 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;
|
|
using System.Windows.Media.Imaging;
|
|
using GameRes.Utility;
|
|
|
|
namespace GameRes.Formats.Abogado
|
|
{
|
|
internal class KgMetaData : ImageMetaData
|
|
{
|
|
public int PaletteOffset;
|
|
public int DataOffset;
|
|
public int AlphaOffset;
|
|
}
|
|
|
|
[Export(typeof(ImageFormat))]
|
|
public class KgFormat : ImageFormat
|
|
{
|
|
public override string Tag { get { return "KG/ABOGADO"; } }
|
|
public override string Description { get { return "AbogadoPowers image format"; } }
|
|
public override uint Signature { get { return 0; } }
|
|
|
|
public KgFormat ()
|
|
{
|
|
Signatures = new uint[] { 0x0202474B, 0x0102474B };
|
|
}
|
|
|
|
public override ImageMetaData ReadMetaData (IBinaryStream file)
|
|
{
|
|
var header = file.ReadHeader (0x30);
|
|
return new KgMetaData
|
|
{
|
|
Width = header.ToUInt16 (4),
|
|
Height = header.ToUInt16 (6),
|
|
BPP = header[3] == 2 ? 24 : 8,
|
|
PaletteOffset = header.ToInt32 (0xC),
|
|
DataOffset = header.ToInt32 (0x10),
|
|
AlphaOffset = header.ToInt32 (0x2C),
|
|
};
|
|
}
|
|
|
|
public override ImageData Read (IBinaryStream file, ImageMetaData info)
|
|
{
|
|
using (var reader = new KgReader (file, (KgMetaData)info))
|
|
{
|
|
reader.Unpack();
|
|
return ImageData.CreateFlipped (info, reader.Format, reader.Palette, reader.Pixels, reader.Stride);
|
|
}
|
|
}
|
|
|
|
public override void Write (Stream file, ImageData image)
|
|
{
|
|
throw new System.NotImplementedException ("KgFormat.Write not implemented");
|
|
}
|
|
}
|
|
|
|
internal sealed class KgReader : IDisposable
|
|
{
|
|
IBinaryStream m_input;
|
|
MsbBitStream m_bits;
|
|
KgMetaData m_info;
|
|
byte[] m_output;
|
|
int m_pixel_size;
|
|
int m_stride;
|
|
|
|
public PixelFormat Format { get; private set; }
|
|
public BitmapPalette Palette { get; private set; }
|
|
public byte[] Pixels { get { return m_output; } }
|
|
public int Stride { get { return m_stride; } }
|
|
|
|
public KgReader (IBinaryStream input, KgMetaData info)
|
|
{
|
|
m_input = input;
|
|
m_bits = new MsbBitStream (input.AsStream, true);
|
|
m_info = info;
|
|
m_pixel_size = m_info.BPP / 8;
|
|
m_stride = m_pixel_size * (int)m_info.Width;
|
|
m_output = new byte[m_stride * (int)m_info.Height];
|
|
if (0 != m_info.AlphaOffset)
|
|
Format = PixelFormats.Bgra32;
|
|
else if (24 == m_info.BPP)
|
|
Format = PixelFormats.Bgr24;
|
|
else
|
|
Format = PixelFormats.Indexed8;
|
|
}
|
|
|
|
public void Unpack ()
|
|
{
|
|
if (8 == m_info.BPP)
|
|
{
|
|
m_input.Position = m_info.PaletteOffset;
|
|
ReadPalette();
|
|
}
|
|
m_bits.Input.Position = m_info.DataOffset;
|
|
ResetDict();
|
|
UnpackChannel (0);
|
|
if (m_pixel_size > 1)
|
|
{
|
|
UnpackChannel (1);
|
|
UnpackChannel (2);
|
|
}
|
|
if (m_info.AlphaOffset != 0)
|
|
{
|
|
ConvertToBgr32();
|
|
try
|
|
{
|
|
m_bits.Input.Position = m_info.AlphaOffset;
|
|
m_bits.Reset();
|
|
ResetDict();
|
|
UnpackChannel (3);
|
|
}
|
|
catch
|
|
{
|
|
Format = PixelFormats.Bgr32;
|
|
}
|
|
}
|
|
}
|
|
|
|
byte[] m_dict = new byte[0x800];
|
|
|
|
void ResetDict ()
|
|
{
|
|
for (int i = 0; i < 0x800; ++i)
|
|
m_dict[i] = (byte)(i & 7);
|
|
}
|
|
|
|
void ConvertToBgr32 ()
|
|
{
|
|
m_stride = (int)m_info.Width * 4;
|
|
var pixels = new byte[m_stride * (int)m_info.Height];
|
|
int dst = 0;
|
|
if (1 == m_pixel_size)
|
|
{
|
|
var colors = Palette.Colors;
|
|
for (int src = 0; src < m_output.Length; ++src)
|
|
{
|
|
var pixel = colors[m_output[src]];
|
|
pixels[dst] = pixel.B;
|
|
pixels[dst+1] = pixel.G;
|
|
pixels[dst+2] = pixel.R;
|
|
dst += 4;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (int src = 0; src < m_output.Length; src += m_pixel_size)
|
|
{
|
|
pixels[dst] = m_output[src];
|
|
pixels[dst+1] = m_output[src+1];
|
|
pixels[dst+2] = m_output[src+2];
|
|
dst += 4;
|
|
}
|
|
}
|
|
m_output = pixels;
|
|
m_pixel_size = 4;
|
|
}
|
|
|
|
void ReadPalette ()
|
|
{
|
|
var palette_data = m_input.ReadBytes (0x400);
|
|
if (palette_data.Length != 0x400)
|
|
throw new EndOfStreamException();
|
|
var palette = new Color[0x100];
|
|
for (int i = 0; i < 0x100; ++i)
|
|
{
|
|
int c = i * 4;
|
|
palette[i] = Color.FromRgb (palette_data[c+2], palette_data[c+1], palette_data[c]);
|
|
}
|
|
Palette = new BitmapPalette (palette);
|
|
}
|
|
|
|
void UnpackChannel (int dst)
|
|
{
|
|
m_output[dst] = (byte)m_bits.GetBits (8);
|
|
dst += m_pixel_size;
|
|
m_output[dst] = (byte)m_bits.GetBits (8);
|
|
dst += m_pixel_size;
|
|
while (dst < m_output.Length)
|
|
{
|
|
int ctl = m_bits.GetBits (1);
|
|
if (-1 == ctl)
|
|
throw new EndOfStreamException();
|
|
if (0 == ctl)
|
|
{
|
|
byte b = GetPixel (dst);
|
|
m_output[dst] = b;
|
|
UpdateDict (b, m_output[dst - m_pixel_size]);
|
|
dst += m_pixel_size;
|
|
continue;
|
|
}
|
|
if (0 != m_bits.GetBits (1))
|
|
ctl = m_bits.GetBits (2);
|
|
else
|
|
ctl = 4;
|
|
int offset;
|
|
switch (ctl)
|
|
{
|
|
case 0:
|
|
offset = m_stride;
|
|
break;
|
|
case 1:
|
|
offset = m_stride - m_pixel_size;
|
|
break;
|
|
case 2:
|
|
offset = m_stride + m_pixel_size;
|
|
break;
|
|
case 3:
|
|
offset = 2 * m_pixel_size;
|
|
break;
|
|
default:
|
|
offset = m_pixel_size;
|
|
break;
|
|
}
|
|
int count = GetCount();
|
|
int src = dst - offset;
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
m_output[dst] = m_output[src];
|
|
dst += m_pixel_size;
|
|
src += m_pixel_size;
|
|
}
|
|
}
|
|
}
|
|
|
|
byte GetPixel (int dst)
|
|
{
|
|
if (1 == m_bits.GetBits (1))
|
|
{
|
|
return (byte)m_bits.GetBits (8);
|
|
}
|
|
else
|
|
{
|
|
int n = 8 * m_output[dst - m_pixel_size];
|
|
return m_dict[n + m_bits.GetBits (3)];
|
|
}
|
|
}
|
|
|
|
void UpdateDict (byte b, byte prev)
|
|
{
|
|
int s = 8 * prev;
|
|
int i;
|
|
for (i = 0; i < 8; ++i)
|
|
{
|
|
if (m_dict[s + i] == b)
|
|
break;
|
|
}
|
|
if (i != 0)
|
|
{
|
|
if (8 == i)
|
|
i = 7;
|
|
Buffer.BlockCopy (m_dict, s, m_dict, s+1, i);
|
|
m_dict[s] = b;
|
|
}
|
|
}
|
|
|
|
int GetCount ()
|
|
{
|
|
int count = m_bits.GetBits (2);
|
|
if (0 == count)
|
|
{
|
|
count = m_bits.GetBits (4);
|
|
if (0 != count)
|
|
{
|
|
count += 3;
|
|
}
|
|
else
|
|
{
|
|
count = m_bits.GetBits (8);
|
|
if (0 == count)
|
|
{
|
|
count = m_bits.GetBits (16);
|
|
if (0 == count)
|
|
{
|
|
count = m_bits.GetBits (16) << 16;
|
|
count |= m_bits.GetBits (16);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return count;
|
|
}
|
|
|
|
bool _disposed = false;
|
|
public void Dispose ()
|
|
{
|
|
if (!_disposed)
|
|
{
|
|
m_bits.Dispose();
|
|
_disposed = true;
|
|
}
|
|
}
|
|
}
|
|
}
|