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257 lines
11 KiB
C#
257 lines
11 KiB
C#
//! \file ImageKAAS.cs
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//! \date Sat Apr 11 03:09:41 2015
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//! \brief KAAS engine image format implementation.
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//
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// Copyright (C) 2015 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.IO;
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using System.Windows;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using GameRes.Utility;
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namespace GameRes.Formats.KAAS
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{
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internal class PicMetaData : ImageMetaData
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{
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public int Mode;
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public int Key;
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public uint CompSize1;
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public uint CompSize2;
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public uint CompSize3;
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}
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[Export(typeof(ImageFormat))]
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public class PicFormat : ImageFormat
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{
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public override string Tag { get { return "PIC"; } }
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public override string Description { get { return "KAAS engine image format"; } }
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public override uint Signature { get { return 0; } }
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public override void Write (Stream file, ImageData image)
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{
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throw new NotImplementedException ("PicFormat.Write not implemented");
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}
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public override ImageMetaData ReadMetaData (Stream stream)
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{
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int mode = stream.ReadByte();
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switch (mode)
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{
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case 5: case 6:
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break;
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default:
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return null;
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}
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int key = stream.ReadByte();
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var header = new byte[0x10];
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if (header.Length != stream.Read (header, 0, header.Length))
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return null;
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uint width = LittleEndian.ToUInt16 (header, 0);
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uint height = LittleEndian.ToUInt16 (header, 2);
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if (0 == width || width > 4096 || 0 == height || height > 4096)
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return null;
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var file_len = stream.Length;
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uint comp_size1 = LittleEndian.ToUInt32 (header, 6);
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uint comp_size2 = LittleEndian.ToUInt32 (header, 10);
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uint comp_size3 = LittleEndian.ToUInt16 (header, 14);
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if (comp_size1 >= file_len || comp_size2 >= file_len || comp_size3 >= file_len)
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return null;
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return new PicMetaData
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{
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Width = width,
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Height = height,
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BPP = 24,
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Mode = mode,
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Key = key,
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CompSize1 = comp_size1,
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CompSize2 = comp_size2,
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CompSize3 = comp_size3,
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};
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}
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public override ImageData Read (Stream stream, ImageMetaData info)
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{
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var meta = info as PicMetaData;
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if (null == meta)
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throw new ArgumentException ("PicFormat.Read should be supplied with PicMetaData", "info");
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stream.Position = 0x12;
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using (var reader = new Reader (stream, meta))
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{
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reader.Unpack();
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return ImageData.Create (meta, PixelFormats.Bgr24, null, reader.Data, (int)meta.Width*3);
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}
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}
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internal class Reader : IDisposable
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{
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byte[] m_comp0;
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byte[] m_comp1;
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byte[] m_comp2;
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byte[] m_output;
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int m_mode;
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int m_key;
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public byte[] Data { get { return m_output; } }
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public Reader (Stream file, PicMetaData info)
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{
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m_mode = info.Mode;
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m_key = info.Key;
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if (6 == info.Mode)
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{
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uint out_len = info.Width * info.Height * 3;
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m_output = new byte[out_len];
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if (m_output.Length != file.Read (m_output, 0, m_output.Length))
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throw new InvalidFormatException ("Unexpected end of file");
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}
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else
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{
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m_comp0 = new byte[info.CompSize1];
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if (m_comp0.Length != file.Read (m_comp0, 0, m_comp0.Length))
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throw new InvalidFormatException ("Unexpected end of file");
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m_comp1 = new byte[info.CompSize2];
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if (m_comp1.Length != file.Read (m_comp1, 0, m_comp1.Length))
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throw new InvalidFormatException ("Unexpected end of file");
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m_comp2 = new byte[info.CompSize3];
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if (m_comp2.Length != file.Read (m_comp2, 0, m_comp2.Length))
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throw new InvalidFormatException ("Unexpected end of file");
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uint out_len = (info.Width * info.Height + 96) * 3;
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m_output = new byte[out_len];
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}
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}
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public void Unpack ()
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{
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switch (m_mode)
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{
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case 5: Unpack5(); break;
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case 6: Unpack6(); break;
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default:
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throw new NotSupportedException ("[KAAS] Not supported image compression");
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}
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}
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private void Unpack5 ()
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{
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int i = 0;
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int src = 0;
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int dst = 0;
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int ctl = 1;
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int x = 0;
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for (;;)
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{
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// int type = (m_comp0[x/4] >> (x & 3)*2) & 3;
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if (1 == ctl)
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{
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if (x == m_comp0.Length)
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break;
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ctl = m_comp0[x++] | 0x100;
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}
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int type = ctl & 3;
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ctl >>= 2;
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int count, off;
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switch (type)
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{
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case 0:
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m_output[dst++] = m_comp1[src++];
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break;
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case 1:
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count = ((m_comp2[i / 2] >> (4 * (i & 1))) & 0xf) + 2;
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off = m_comp1[src++] + 2;
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Binary.CopyOverlapped (m_output, dst-off, dst, count);
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dst += count;
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++i;
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break;
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case 2:
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count = LittleEndian.ToUInt16 (m_comp1, src);
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if (0 == count)
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return;
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off = (count & 0xfff) + 2;
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count = (count >> 12) + 2;
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Binary.CopyOverlapped (m_output, dst-off, dst, count);
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dst += count;
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src += 2;
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break;
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default:
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off = (((m_comp2[i / 2] << (4 * (2 - (i & 1)))) & 0xf00) | m_comp1[src]) + 2;
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count = m_comp1[src+1] + 18;
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Binary.CopyOverlapped (m_output, dst-off, dst, count);
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dst += count;
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src += 2;
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++i;
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break;
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}
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}
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}
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private void Unpack6 ()
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{
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int conv_base = m_key & 0x3f;
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for (int i = 0; i < m_output.Length; ++i)
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m_output[i] -= ScrambleTable[conv_base + (i&0xff)];
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}
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static readonly byte[] ScrambleTable = new byte[] {
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0x29, 0x23, 0xbe, 0x84, 0xe1, 0x6c, 0xd6, 0xae, 0x52, 0x90, 0x49, 0xf1, 0xf1, 0xbb, 0xe9, 0xeb,
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0xb3, 0xa6, 0xdb, 0x3c, 0x87, 0x0c, 0x3e, 0x99, 0x24, 0x5e, 0x0d, 0x1c, 0x06, 0xb7, 0x47, 0xde,
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0xb3, 0x12, 0x4d, 0xc8, 0x43, 0xbb, 0x8b, 0xa6, 0x1f, 0x03, 0x5a, 0x7d, 0x09, 0x38, 0x25, 0x1f,
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0x5d, 0xd4, 0xcb, 0xfc, 0x96, 0xf5, 0x45, 0x3b, 0x13, 0x0d, 0x89, 0x0a, 0x1c, 0xdb, 0xae, 0x32,
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0x20, 0x9a, 0x50, 0xee, 0x40, 0x78, 0x36, 0xfd, 0x12, 0x49, 0x32, 0xf6, 0x9e, 0x7d, 0x49, 0xdc,
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0xad, 0x4f, 0x14, 0xf2, 0x44, 0x40, 0x66, 0xd0, 0x6b, 0xc4, 0x30, 0xb7, 0x32, 0x3b, 0xa1, 0x22,
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0xf6, 0x22, 0x91, 0x9d, 0xe1, 0x8b, 0x1f, 0xda, 0xb0, 0xca, 0x99, 0x02, 0xb9, 0x72, 0x9d, 0x49,
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0x2c, 0x80, 0x7e, 0xc5, 0x99, 0xd5, 0xe9, 0x80, 0xb2, 0xea, 0xc9, 0xcc, 0x53, 0xbf, 0x67, 0xd6,
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0xbf, 0x14, 0xd6, 0x7e, 0x2d, 0xdc, 0x8e, 0x66, 0x83, 0xef, 0x57, 0x49, 0x61, 0xff, 0x69, 0x8f,
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0x61, 0xcd, 0xd1, 0x1e, 0x9d, 0x9c, 0x16, 0x72, 0x72, 0xe6, 0x1d, 0xf0, 0x84, 0x4f, 0x4a, 0x77,
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0x02, 0xd7, 0xe8, 0x39, 0x2c, 0x53, 0xcb, 0xc9, 0x12, 0x1e, 0x33, 0x74, 0x9e, 0x0c, 0xf4, 0xd5,
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0xd4, 0x9f, 0xd4, 0xa4, 0x59, 0x7e, 0x35, 0xcf, 0x32, 0x22, 0xf4, 0xcc, 0xcf, 0xd3, 0x90, 0x2d,
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0x48, 0xd3, 0x8f, 0x75, 0xe6, 0xd9, 0x1d, 0x2a, 0xe5, 0xc0, 0xf7, 0x2b, 0x78, 0x81, 0x87, 0x44,
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0x0e, 0x5f, 0x50, 0x00, 0xd4, 0x61, 0x8d, 0xbe, 0x7b, 0x05, 0x15, 0x07, 0x3b, 0x33, 0x82, 0x1f,
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0x18, 0x70, 0x92, 0xda, 0x64, 0x54, 0xce, 0xb1, 0x85, 0x3e, 0x69, 0x15, 0xf8, 0x46, 0x6a, 0x04,
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0x96, 0x73, 0x0e, 0xd9, 0x16, 0x2f, 0x67, 0x68, 0xd4, 0xf7, 0x4a, 0x4a, 0xd0, 0x57, 0x68, 0x76,
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0xfa, 0x16, 0xbb, 0x11, 0xad, 0xae, 0x24, 0x88, 0x79, 0xfe, 0x52, 0xdb, 0x25, 0x43, 0xe5, 0x3c,
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0xf4, 0x45, 0xd3, 0xd8, 0x28, 0xce, 0x0b, 0xf5, 0xc5, 0x60, 0x59, 0x3d, 0x97, 0x27, 0x8a, 0x59,
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0x76, 0x2d, 0xd0, 0xc2, 0xc9, 0xcd, 0x68, 0xd4, 0x49, 0x6a, 0x79, 0x25, 0x08, 0x61, 0x40, 0x14,
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0xb1, 0x3b, 0x6a, 0xa5, 0x11, 0x28, 0xc1, 0x8c, 0xd6, 0xa9, 0x0b, 0x87, 0x97, 0x8c, 0x2f, 0xf1,
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};
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#region IDisposable Members
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public void Dispose ()
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{
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GC.SuppressFinalize (this);
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}
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#endregion
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}
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}
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}
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