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512 lines
20 KiB
C#
512 lines
20 KiB
C#
//! \file ImagePT1.cs
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//! \date Wed Apr 15 15:17:24 2015
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//! \brief Black Package 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.Text;
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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.BlackPackage
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{
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internal class Pt1MetaData : ImageMetaData
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{
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public uint PackedSize;
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public uint UnpackedSize;
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}
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[Export(typeof(ImageFormat))]
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public class Pt1Format : ImageFormat
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{
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public override string Tag { get { return "PT1"; } }
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public override string Description { get { return "Black Package RGB image format"; } }
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public override uint Signature { get { return 2u; } }
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public override void Write (Stream file, ImageData image)
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{
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throw new NotImplementedException ("Pt1Format.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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using (var input = new ArcView.Reader (stream))
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{
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stream.Seek (0x10, SeekOrigin.Current);
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uint m_width = input.ReadUInt32();
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uint m_height = input.ReadUInt32();
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uint comp_size = input.ReadUInt32();
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uint uncomp_size = input.ReadUInt32();
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if (uncomp_size != m_width*m_height*3u)
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return null;
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return new Pt1MetaData {
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Width = m_width,
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Height = m_height,
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BPP = 24,
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PackedSize = comp_size,
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UnpackedSize = uncomp_size
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};
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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 Pt1MetaData;
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if (null == meta)
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throw new ArgumentException ("Pt1Format.Read should be supplied with Pt1MetaData", "info");
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stream.Position = 0x20;
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var reader = new Reader (stream, meta);
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// try
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{
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reader.UnpackV2();
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}
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// catch { }
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byte[] pixels = reader.Data;
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var bitmap = BitmapSource.Create ((int)meta.Width, (int)meta.Height, 96, 96,
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PixelFormats.Bgr24, null, pixels, (int)meta.Width*3);
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bitmap.Freeze();
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return new ImageData (bitmap, meta);
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}
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internal class Reader
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{
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byte[] m_input;
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byte[] m_output;
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int m_width;
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int m_height;
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int m_left = 0;
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int m_stride = 0;
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public byte[] Data { get { return m_output; } }
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public Reader (Stream input, Pt1MetaData info)
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{
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m_input = new byte[info.PackedSize+8];
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if ((int)info.PackedSize != input.Read (m_input, 0, (int)info.PackedSize))
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throw new InvalidFormatException ("Unexpected end of file");
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m_width = (int)info.Width;
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m_height = (int)info.Height;
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m_output = new byte[info.UnpackedSize];
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m_stride = m_width*3;
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}
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uint edx;
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byte ch;
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int src;
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void ReadNext ()
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{
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byte cl = (byte)(32 - ch);
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edx &= 0xFFFFFFFFu >> cl;
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edx += LittleEndian.ToUInt32 (m_input, src) << ch;
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src += cl >> 3;
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ch += (byte)(cl & 0xf8);
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}
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public void UnpackV2 ()
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{
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src = 0;
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int dst = 0;
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Buffer.BlockCopy (m_input, src, m_output, dst, 3);
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src += 3;
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dst += 3;
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edx = LittleEndian.ToUInt32 (m_input, src);
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src += 3;
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ch = 0x18;
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uint _CF;
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uint ebx;
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sbyte ah;
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byte al;
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// [ebp+var_8] = i
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for (int i = 1; i < m_width; ++i)
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{
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ReadNext();
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_CF = edx & 1;
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edx >>= 1;
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if (0 != _CF)
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{
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--ch;
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Buffer.BlockCopy (m_output, dst-3, m_output, dst, 3);
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dst += 3;
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}
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else
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{
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ch -= 2;
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_CF = edx & 1;
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edx >>= 1;
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if (0 != _CF)
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{
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst-3]);
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m_output[dst++] = al;
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ReadNext();
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst-3]);
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m_output[dst++] = al;
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ReadNext();
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst-3]);
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m_output[dst++] = al;
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}
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else
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{
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ReadNext();
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LittleEndian.Pack ((ushort)edx, m_output, dst);
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edx >>= 16;
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m_output[dst+2] = (byte)edx;
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dst += 3;
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edx >>= 8;
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ch -= 24;
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}
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}
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}
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for (int i = 1; i < m_height; ++i)
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{
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dst += m_left; // XXX add edi, [ebp+arg_8]
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ReadNext();
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_CF = edx & 1;
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edx >>= 1;
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if (0 != _CF)
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{
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--ch;
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Buffer.BlockCopy (m_output, dst-m_stride, m_output, dst, 3);
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dst += 3;
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}
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else // loc_42207F
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{
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ch -= 2;
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_CF = edx & 1;
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edx >>= 1;
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if (0 != _CF)
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{
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst-m_stride]);
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m_output[dst++] = al;
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ReadNext();
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst-m_stride]);
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m_output[dst++] = al;
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ReadNext();
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst-m_stride]);
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m_output[dst++] = al;
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}
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else // loc_4220FC
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{
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ReadNext();
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LittleEndian.Pack ((ushort)edx, m_output, dst);
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edx >>= 16;
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m_output[dst+2] = (byte)edx;
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dst += 3;
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edx >>= 8;
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ch -= 24;
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}
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}
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for (int j = 1; j < m_width; ++j)
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{
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ReadNext();
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_CF = edx & 1;
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edx >>= 1;
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if (0 != _CF)
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{
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--ch;
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ebx = (uint)(dst - m_stride);
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ah = sub_4225EA();
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al = (byte)(m_output[dst-3] - m_output[ebx-3] + m_output[ebx] + ah);
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m_output[dst++] = al;
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ReadNext();
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ah = sub_4225EA();
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al = (byte)(m_output[dst-3] - m_output[ebx-2] + m_output[ebx+1] + ah);
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m_output[dst++] = al;
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ReadNext();
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ah = sub_4225EA();
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al = (byte)(m_output[dst-3] - m_output[ebx-1] + m_output[ebx+2] + ah);
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m_output[dst++] = al;
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}
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else
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{
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_CF = edx & 1;
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edx >>= 1;
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if (0 != _CF)
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{
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ch -= 2;
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ebx = (uint)(dst - m_stride);
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al = (byte)(m_output[dst-3] - m_output[ebx-3] + m_output[ebx]);
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m_output[dst++] = al;
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al = (byte)(m_output[dst-3] - m_output[ebx-2] + m_output[ebx+1]);
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m_output[dst++] = al;
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al = (byte)(m_output[dst-3] - m_output[ebx-1] + m_output[ebx+2]);
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m_output[dst++] = al;
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}
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else
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{
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ebx = edx & 3;
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if (3 == ebx)
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{
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edx >>= 2;
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ch -= 4;
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Buffer.BlockCopy (m_output, dst-3, m_output, dst, 3);
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dst += 3;
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}
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else if (2 == ebx)
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{
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edx >>= 2;
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ch -= 4;
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ReadNext();
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LittleEndian.Pack ((ushort)edx, m_output, dst);
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edx >>= 16;
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m_output[dst+2] = (byte)edx;
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dst += 3;
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edx >>= 8;
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ch -= 24;
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}
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else if (1 == ebx)
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{
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edx >>= 2;
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ch -= 4;
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst-3]);
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m_output[dst++] = al;
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ReadNext();
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst-3]);
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m_output[dst++] = al;
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ReadNext();
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst-3]);
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m_output[dst++] = al;
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}
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else
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{
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ebx = edx & 0xf;
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edx >>= 4;
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ch -= 6;
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if (0 == ebx)
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{
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Buffer.BlockCopy (m_output, dst - m_stride - 3, m_output, dst, 3);
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dst += 3;
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}
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else if (8 == ebx)
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{
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Buffer.BlockCopy (m_output, dst - m_stride, m_output, dst, 3);
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dst += 3;
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}
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else if (4 == ebx)
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{
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst - m_stride - 3]);
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m_output[dst++] = al;
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ReadNext();
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst - m_stride - 3]);
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m_output[dst++] = al;
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ReadNext();
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst - m_stride - 3]);
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m_output[dst++] = al;
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}
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else
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{
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst - m_stride]);
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m_output[dst++] = al;
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ReadNext();
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst - m_stride]);
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m_output[dst++] = al;
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ReadNext();
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ah = sub_4225EA();
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al = (byte)(ah + m_output[dst - m_stride]);
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m_output[dst++] = al;
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}
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}
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}
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}
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}
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}
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}
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sbyte sub_4225EA ()
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{
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uint _CF = edx & 1;
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edx >>= 1;
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if (0 != _CF)
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{
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--ch;
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return 0;
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}
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uint bits = edx & 3;
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if (2 == bits)
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{
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edx >>= 2;
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ch -= 3;
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return -1;
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}
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if (1 == bits)
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{
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edx >>= 2;
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ch -= 3;
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return 1;
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}
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switch (edx & 7)
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{
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case 7:
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edx >>= 3;
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ch -= 4;
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return -2;
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case 3:
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edx >>= 3;
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ch -= 4;
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return 2;
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case 4:
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edx >>= 3;
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ch -= 4;
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return -3;
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default:
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switch (edx & 0x3f)
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{
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case 0x38:
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edx >>= 6;
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ch -= 7;
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return 3;
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case 0x18:
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edx >>= 6;
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ch -= 7;
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return -4;
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case 0x28:
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edx >>= 6;
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ch -= 7;
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return 4;
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case 0x08:
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edx >>= 6;
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ch -= 7;
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return -5;
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case 0x30:
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edx >>= 6;
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ch -= 7;
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return 5;
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case 0x10:
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edx >>= 6;
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ch -= 7;
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return -6;
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case 0x20:
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edx >>= 6;
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ch -= 7;
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return 6;
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default:
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switch (edx & 0xff)
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{
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case 0xc0:
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edx >>= 8;
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ch -= 9;
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return -7;
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case 0x40:
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edx >>= 8;
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ch -= 9;
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return 7;
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case 0x80:
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edx >>= 8;
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ch -= 9;
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return -8;
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default:
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switch (edx & 0x3ff)
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{
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case 0x300:
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edx >>= 10;
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ch -= 11;
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return 8;
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case 0x100:
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edx >>= 10;
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ch -= 11;
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return -9;
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case 0x200:
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edx >>= 10;
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ch -= 11;
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return 9;
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default:
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switch (edx & 0xfff)
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{
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case 0xc00:
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edx >>= 12;
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ch -= 13;
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return -10;
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case 0x400:
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edx >>= 12;
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ch -= 13;
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return 10;
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case 0x800:
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edx >>= 12;
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ch -= 13;
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return -11;
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default:
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switch (edx & 0x3fff)
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{
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case 0x3000:
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edx >>= 14;
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ch -= 15;
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return 0x0b;
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case 0x1000:
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edx >>= 14;
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ch -= 15;
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return -12;
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case 0x2000:
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edx >>= 14;
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ch -= 15;
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return 0x0c;
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default:
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edx >>= 14;
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ch -= 15;
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return -13;
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}
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}
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}
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}
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}
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}
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}
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}
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}
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}
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