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GARbro-mirror/ArcFormats/Kaas/ImageKAAS.cs

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C#
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//! \file ImageKAAS.cs
//! \date Sat Apr 11 03:09:41 2015
//! \brief KAAS engine image format implementation.
//
// Copyright (C) 2015-2017 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;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using GameRes.Utility;
namespace GameRes.Formats.KAAS
{
internal class PicMetaData : ImageMetaData
{
public int Mode;
public int Key;
public uint CompSize1;
public uint CompSize2;
public uint CompSize3;
}
[Export(typeof(ImageFormat))]
public class PicFormat : ImageFormat
{
public override string Tag { get { return "PIC/KAAS"; } }
public override string Description { get { return "KAAS engine image format"; } }
public override uint Signature { get { return 0; } }
public PicFormat ()
{
Extensions = new string[] { "" };
}
public override void Write (Stream file, ImageData image)
{
throw new NotImplementedException ("PicFormat.Write not implemented");
}
public override ImageMetaData ReadMetaData (IBinaryStream stream)
{
var header = stream.ReadHeader (0x12);
int mode = header[0];
switch (mode)
{
case 5: case 6: case 8: case 9:
break;
default:
return null;
}
int key = header[1];
uint width = LittleEndian.ToUInt16 (header, 2);
uint height = LittleEndian.ToUInt16 (header, 4);
if (0 == width || width > 4096 || 0 == height || height > 4096)
return null;
var file_len = stream.Length;
uint comp_size1 = LittleEndian.ToUInt32 (header, 8);
uint comp_size2 = LittleEndian.ToUInt32 (header, 12);
uint comp_size3 = LittleEndian.ToUInt16 (header, 16);
if (comp_size1 >= file_len || comp_size2 >= file_len || comp_size3 >= file_len)
return null;
return new PicMetaData
{
Width = width,
Height = height,
BPP = 24,
Mode = mode,
Key = key,
CompSize1 = comp_size1,
CompSize2 = comp_size2,
CompSize3 = comp_size3,
};
}
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
{
using (var reader = new Reader (stream, (PicMetaData)info))
{
reader.Unpack();
return ImageData.Create (info, reader.Format, null, reader.Data, reader.Stride);
}
}
internal sealed class Reader : IDisposable
{
byte[] m_comp0;
byte[] m_comp1;
byte[] m_comp2;
byte[] m_output;
int m_mode;
int m_key;
public PixelFormat Format { get { return PixelFormats.Bgr24; } }
public byte[] Data { get { return m_output; } }
public int Stride { get; private set; }
public Reader (IBinaryStream file, PicMetaData info)
{
m_mode = info.Mode;
m_key = info.Key;
Stride = (int)info.Width * 3;
file.Position = 0x12;
if (6 == info.Mode)
{
uint out_len = info.Width * info.Height * 3;
m_output = new byte[out_len];
if (m_output.Length != file.Read (m_output, 0, m_output.Length))
throw new InvalidFormatException ("Unexpected end of file");
}
else
{
m_comp0 = new byte[info.CompSize1];
if (m_comp0.Length != file.Read (m_comp0, 0, m_comp0.Length))
throw new InvalidFormatException ("Unexpected end of file");
m_comp1 = new byte[info.CompSize2];
if (m_comp1.Length != file.Read (m_comp1, 0, m_comp1.Length))
throw new InvalidFormatException ("Unexpected end of file");
m_comp2 = new byte[info.CompSize3];
if (m_comp2.Length != file.Read (m_comp2, 0, m_comp2.Length))
throw new InvalidFormatException ("Unexpected end of file");
uint out_len = (info.Width * info.Height + 96) * 3;
m_output = new byte[out_len];
}
}
public void Unpack ()
{
switch (m_mode)
{
case 5: Unpack5(); break;
case 6: Unpack6(); break;
case 8: Unpack8(); break;
case 9: Unpack9(); break;
default:
throw new NotSupportedException ("[KAAS] Not supported image compression");
}
}
private void Unpack5 ()
{
int src0 = 0;
int src1 = 0;
int src2 = 0;
int dst = 0;
int ctl = 1;
for (;;)
{
if (1 == ctl)
{
if (src0 == m_comp0.Length)
break;
ctl = m_comp0[src0++] | 0x100;
}
int type = ctl & 3;
ctl >>= 2;
int count, offset;
switch (type)
{
case 0:
m_output[dst++] = m_comp1[src1++];
break;
case 1:
count = ((m_comp2[src2 / 2] >> (4 * (src2 & 1))) & 0xf) + 2;
++src2;
offset = m_comp1[src1++] + 2;
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
break;
case 2:
count = LittleEndian.ToUInt16 (m_comp1, src1);
if (0 == count)
return;
src1 += 2;
offset = (count & 0xfff) + 2;
count = (count >> 12) + 2;
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
break;
default:
offset = (((m_comp2[src2 / 2] << (4 * (2 - (src2 & 1)))) & 0xf00) | m_comp1[src1]) + 2;
count = m_comp1[src1+1] + 18;
++src2;
src1 += 2;
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
break;
}
}
}
private void Unpack6 ()
{
int conv_base = m_key & 0x3f;
for (int i = 0; i < m_output.Length; ++i)
m_output[i] -= ScrambleTable[conv_base + (i&0xff)];
}
private void Unpack8 ()
{
int src0 = 0;
int src1 = 0;
int src2 = 0;
int dst = 0;
for (;;)
{
int count, offset;
int type = (m_comp0[src0 / 8] >> (src0 & 6)) & 3;
src0 += 2;
if (type == 0)
{
m_output[dst++] = m_comp1[src1++];
m_output[dst++] = m_comp1[src1++];
m_output[dst++] = m_comp1[src1++];
}
else if (1 == type)
{
int code = m_comp1[src1++] + ((m_comp2[src2 / 2] << (4 * (2 - (src2 & 1)))) & 0xf00);
++src2;
count = ((code >> 10) + 1) * 3;
offset = ((code & 0x3FF) + 1) * 3;
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
}
else if (2 == type)
{
int code = LittleEndian.ToUInt16 (m_comp1, src1);
src1 += 2;
count = ((code >> 14) + 1) * 3;
offset = ((code & 0x3FFF) + 1) * 3;
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
}
else
{
int code = ((m_comp2[src2 / 2] << (4 * (4 - (src2 & 1)))) & 0xF0000) | LittleEndian.ToUInt16 (m_comp1, src1);
if (0 == code)
break;
src1 += 2;
++src2;
count = ((code >> 14) + 5) * 3;
offset = ((code & 0x3FFF) + 1) * 3;
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
}
}
}
private void Unpack9 ()
{
int src0 = 0;
int src1 = 0;
int src2 = 0;
int dst = 0;
for (;;)
{
int count, offset;
int type = (m_comp0[src0 / 8] >> (src0 & 6)) & 3;
src0 += 2;
if (0 == type)
{
count = (m_comp0[src0 / 8] >> (src0 & 6)) & 3;
src0 += 2;
count = (count + 1) * 3;
Buffer.BlockCopy (m_comp1, src1, m_output, dst, count);
dst += count;
src1 += count;
}
else
{
if (1 == type)
{
int code = m_comp1[src1++] + ((m_comp2[src2 / 2] << (4 * (2 - (src2 & 1)))) & 0xF00);
++src2;
count = ((code >> 10) + 1) * 3;
offset = ((code & 0x3FF) + 1) * 3;
}
else if (2 == type)
{
int code = LittleEndian.ToUInt16 (m_comp1, src1);
src1 += 2;
count = ((code >> 14) + 1) * 3;
offset = ((code & 0x3FFF) + 1) * 3;
}
else
{
int code = ((m_comp2[src2 / 2] << (4 * (4 - (src2 & 1)))) & 0xf0000) | LittleEndian.ToUInt16 (m_comp1, src1);
if (0 == code)
break;
src1 += 2;
++src2;
count = ((code >> 14) + 5) * 3;
offset = ((code & 0x3FFF) + 1) * 3;
}
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
}
}
}
static readonly byte[] ScrambleTable = new byte[] {
0x29, 0x23, 0xbe, 0x84, 0xe1, 0x6c, 0xd6, 0xae, 0x52, 0x90, 0x49, 0xf1, 0xf1, 0xbb, 0xe9, 0xeb,
0xb3, 0xa6, 0xdb, 0x3c, 0x87, 0x0c, 0x3e, 0x99, 0x24, 0x5e, 0x0d, 0x1c, 0x06, 0xb7, 0x47, 0xde,
0xb3, 0x12, 0x4d, 0xc8, 0x43, 0xbb, 0x8b, 0xa6, 0x1f, 0x03, 0x5a, 0x7d, 0x09, 0x38, 0x25, 0x1f,
0x5d, 0xd4, 0xcb, 0xfc, 0x96, 0xf5, 0x45, 0x3b, 0x13, 0x0d, 0x89, 0x0a, 0x1c, 0xdb, 0xae, 0x32,
0x20, 0x9a, 0x50, 0xee, 0x40, 0x78, 0x36, 0xfd, 0x12, 0x49, 0x32, 0xf6, 0x9e, 0x7d, 0x49, 0xdc,
0xad, 0x4f, 0x14, 0xf2, 0x44, 0x40, 0x66, 0xd0, 0x6b, 0xc4, 0x30, 0xb7, 0x32, 0x3b, 0xa1, 0x22,
0xf6, 0x22, 0x91, 0x9d, 0xe1, 0x8b, 0x1f, 0xda, 0xb0, 0xca, 0x99, 0x02, 0xb9, 0x72, 0x9d, 0x49,
0x2c, 0x80, 0x7e, 0xc5, 0x99, 0xd5, 0xe9, 0x80, 0xb2, 0xea, 0xc9, 0xcc, 0x53, 0xbf, 0x67, 0xd6,
0xbf, 0x14, 0xd6, 0x7e, 0x2d, 0xdc, 0x8e, 0x66, 0x83, 0xef, 0x57, 0x49, 0x61, 0xff, 0x69, 0x8f,
0x61, 0xcd, 0xd1, 0x1e, 0x9d, 0x9c, 0x16, 0x72, 0x72, 0xe6, 0x1d, 0xf0, 0x84, 0x4f, 0x4a, 0x77,
0x02, 0xd7, 0xe8, 0x39, 0x2c, 0x53, 0xcb, 0xc9, 0x12, 0x1e, 0x33, 0x74, 0x9e, 0x0c, 0xf4, 0xd5,
0xd4, 0x9f, 0xd4, 0xa4, 0x59, 0x7e, 0x35, 0xcf, 0x32, 0x22, 0xf4, 0xcc, 0xcf, 0xd3, 0x90, 0x2d,
0x48, 0xd3, 0x8f, 0x75, 0xe6, 0xd9, 0x1d, 0x2a, 0xe5, 0xc0, 0xf7, 0x2b, 0x78, 0x81, 0x87, 0x44,
0x0e, 0x5f, 0x50, 0x00, 0xd4, 0x61, 0x8d, 0xbe, 0x7b, 0x05, 0x15, 0x07, 0x3b, 0x33, 0x82, 0x1f,
0x18, 0x70, 0x92, 0xda, 0x64, 0x54, 0xce, 0xb1, 0x85, 0x3e, 0x69, 0x15, 0xf8, 0x46, 0x6a, 0x04,
0x96, 0x73, 0x0e, 0xd9, 0x16, 0x2f, 0x67, 0x68, 0xd4, 0xf7, 0x4a, 0x4a, 0xd0, 0x57, 0x68, 0x76,
0xfa, 0x16, 0xbb, 0x11, 0xad, 0xae, 0x24, 0x88, 0x79, 0xfe, 0x52, 0xdb, 0x25, 0x43, 0xe5, 0x3c,
0xf4, 0x45, 0xd3, 0xd8, 0x28, 0xce, 0x0b, 0xf5, 0xc5, 0x60, 0x59, 0x3d, 0x97, 0x27, 0x8a, 0x59,
0x76, 0x2d, 0xd0, 0xc2, 0xc9, 0xcd, 0x68, 0xd4, 0x49, 0x6a, 0x79, 0x25, 0x08, 0x61, 0x40, 0x14,
0xb1, 0x3b, 0x6a, 0xa5, 0x11, 0x28, 0xc1, 0x8c, 0xd6, 0xa9, 0x0b, 0x87, 0x97, 0x8c, 0x2f, 0xf1,
};
#region IDisposable Members
public void Dispose ()
{
GC.SuppressFinalize (this);
}
#endregion
}
}
}
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