mirror of
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604 lines
21 KiB
C#
604 lines
21 KiB
C#
//! \file ImagePGD.cs
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//! \date Sat Feb 13 13:56:06 2016
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//! \brief Image format used by subsidiaries of Amuse Craft (former Softpal).
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//
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// Copyright (C) 2016 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.ComponentModel.Composition;
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using System.IO;
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using System.Windows.Media;
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using GameRes.Utility;
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namespace GameRes.Formats.Softpal
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{
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[Export(typeof(ImageFormat))]
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public class Pgd11Format : ImageFormat
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{
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public override string Tag { get { return "PGD/11_C"; } }
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public override string Description { get { return "Image format used by Softpal subsidiaries"; } }
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public override uint Signature { get { return 0x1C4547; } } // 'GE\x1C'
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public Pgd11Format ()
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{
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Extensions = new string[] { "pgd" };
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}
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public override ImageMetaData ReadMetaData (Stream stream)
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{
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var header = new byte[0x20];
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if (header.Length != stream.Read (header, 0, header.Length))
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return null;
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if (!Binary.AsciiEqual (header, 0x1C, "11_C"))
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return null;
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return new ImageMetaData
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{
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Width = LittleEndian.ToUInt32 (header, 0x0C),
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Height = LittleEndian.ToUInt32 (header, 0x10),
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OffsetX = LittleEndian.ToInt32 (header, 4),
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OffsetY = LittleEndian.ToInt32 (header, 8),
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BPP = 32,
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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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using (var reader = new PgdReader (stream, 0x20))
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{
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var planes = reader.Unpack11();
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var pixels = new byte[planes.Length];
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int plane_size = (int)info.Width*(int)info.Height;
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int b_src = 0;
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int g_src = b_src+plane_size;
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int r_src = g_src+plane_size;
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int alpha_src = r_src+plane_size;
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int dst = 0;
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while (dst < pixels.Length)
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{
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pixels[dst++] = planes[b_src++];
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pixels[dst++] = planes[g_src++];
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pixels[dst++] = planes[r_src++];
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pixels[dst++] = planes[alpha_src++];
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}
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return ImageData.Create (info, PixelFormats.Bgra32, null, pixels);
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}
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}
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public override void Write (Stream file, ImageData image)
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{
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throw new NotImplementedException ("Pgd11Format.Write not implemented");
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}
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}
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[Export(typeof(ImageFormat))]
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public class Pgd00Format : ImageFormat
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{
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public override string Tag { get { return "PGD/00_C"; } }
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public override string Description { get { return "Image format used by Softpal subsidiaries"; } }
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public override uint Signature { get { return 0; } }
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public Pgd00Format ()
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{
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Extensions = new string[] { "pgd" };
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}
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public override ImageMetaData ReadMetaData (Stream stream)
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{
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var header = new byte[0x24];
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if (header.Length != stream.Read (header, 0, header.Length))
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return null;
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if (!Binary.AsciiEqual (header, 0x18, "00_C"))
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return null;
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return new ImageMetaData
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{
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Width = LittleEndian.ToUInt32 (header, 8),
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Height = LittleEndian.ToUInt32 (header, 12),
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OffsetX = LittleEndian.ToInt32 (header, 0),
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OffsetY = LittleEndian.ToInt32 (header, 4),
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BPP = 32,
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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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using (var reader = new PgdReader (stream, 0x1C))
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{
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var data = reader.Unpack00();
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using (var tga = new MemoryStream (data))
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{
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var tga_info = Tga.ReadMetaData (tga);
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if (null == tga_info)
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throw new InvalidFormatException();
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tga.Position = 0;
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return Tga.Read (tga, tga_info);
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}
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}
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}
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public override void Write (Stream file, ImageData image)
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{
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throw new NotImplementedException ("Pgd00Format.Write not implemented");
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}
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}
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[Export(typeof(ImageFormat))]
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public class PgdTgaFormat : TgaFormat
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{
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public override string Tag { get { return "PGD/TGA"; } }
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public override string Description { get { return "Image format used by Softpal subsidiaries"; } }
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public override uint Signature { get { return 0; } }
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public override bool CanWrite { get { return false; } }
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public PgdTgaFormat ()
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{
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Extensions = new string[] { "pgd" };
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}
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public override ImageMetaData ReadMetaData (Stream stream)
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{
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var header = new byte[0x2A];
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if (header.Length != stream.Read (header, 0, header.Length))
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return null;
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int x = LittleEndian.ToInt32 (header, 0);
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int y = LittleEndian.ToInt32 (header, 4);
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if (Math.Abs (x) > 0x2000 || Math.Abs (y) > 0x2000)
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return null;
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uint width = LittleEndian.ToUInt32 (header, 8);
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uint height = LittleEndian.ToUInt32 (header, 12);
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if (0 == width || 0 == height
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|| width != LittleEndian.ToUInt16 (header, 0x24)
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|| height != LittleEndian.ToUInt16 (header, 0x26))
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return null;
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stream.Position = 0x18;
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var tga_info = base.ReadMetaData (stream);
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if (null == tga_info)
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return null;
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tga_info.OffsetX = x;
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tga_info.OffsetY = y;
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return tga_info;
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}
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public override ImageData Read (Stream stream, ImageMetaData info)
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{
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using (var tga = new StreamRegion (stream, 0x18, true))
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return base.Read (tga, info);
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}
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public override void Write (Stream file, ImageData image)
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{
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throw new NotImplementedException ("PgdTgaFormat.Write not implemented");
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}
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}
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internal class PgdGeMetaData : ImageMetaData
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{
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public int Method;
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}
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[Export(typeof(ImageFormat))]
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public class PgdGeFormat : ImageFormat
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{
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public override string Tag { get { return "PGD/GE"; } }
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public override string Description { get { return "Image format used by Softpal subsidiaries"; } }
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public override uint Signature { get { return 0x204547; } } // 'GE '
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public PgdGeFormat ()
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{
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Extensions = new string[] { "pgd" };
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}
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public override ImageMetaData ReadMetaData (Stream stream)
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{
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var header = new byte[0x20];
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if (header.Length != stream.Read (header, 0, header.Length))
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return null;
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return new PgdGeMetaData
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{
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Width = LittleEndian.ToUInt32 (header, 0x0C),
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Height = LittleEndian.ToUInt32 (header, 0x10),
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OffsetX = LittleEndian.ToInt32 (header, 4),
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OffsetY = LittleEndian.ToInt32 (header, 8),
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BPP = 32,
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Method = LittleEndian.ToUInt16 (header, 0x1C),
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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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using (var reader = new PgdReader (stream, (PgdGeMetaData)info))
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{
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var pixels = reader.UnpackGE();
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return ImageData.Create (info, reader.Format, null, pixels);
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}
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}
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public override void Write (Stream file, ImageData image)
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{
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throw new NotImplementedException ("PgdGeFormat.Write not implemented");
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}
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}
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internal class PgdIncMetaData : ImageMetaData
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{
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public string BaseName;
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}
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[Export(typeof(ImageFormat))]
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public class Pgd3Format : ImageFormat
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{
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public override string Tag { get { return "PGD3"; } }
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public override string Description { get { return "Softpal incremental image format"; } }
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public override uint Signature { get { return 0x33444750; } } // 'PGD3'
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public Pgd3Format ()
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{
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Extensions = new string[] { "pgd" };
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Signatures = new uint[] { 0x33444750, 0x32444750 }; // 'PGD3', 'PGD2'
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}
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public override ImageMetaData ReadMetaData (Stream stream)
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{
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var header = new byte[0x30];
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if (header.Length != stream.Read (header, 0, header.Length))
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return null;
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string base_name = Binary.GetCString (header, 0xE, 0x22);
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if (string.IsNullOrEmpty (base_name))
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return null;
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return new PgdIncMetaData
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{
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OffsetX = LittleEndian.ToUInt16 (header, 4),
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OffsetY = LittleEndian.ToUInt16 (header, 6),
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Width = LittleEndian.ToUInt16 (header, 8),
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Height = LittleEndian.ToUInt16 (header, 0xA),
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BPP = LittleEndian.ToUInt16 (header, 0xC),
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BaseName = base_name,
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};
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}
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static readonly Lazy<ImageFormat> PalFormat = new Lazy<ImageFormat> (() => FindByTag ("PGD/GE"));
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public override ImageData Read (Stream stream, ImageMetaData info)
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{
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var meta = (PgdIncMetaData)info;
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string dir_name = VFS.GetDirectoryName (meta.FileName);
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string name = VFS.CombinePath (dir_name, meta.BaseName);
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PgdGeMetaData base_info;
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byte[] image, overlay;
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PixelFormat format;
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using (var base_file = VFS.OpenSeekableStream (name))
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{
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base_info = PalFormat.Value.ReadMetaData (base_file) as PgdGeMetaData;
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if (null == base_info)
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throw new InvalidFormatException ("Invalid baseline image format");
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if (meta.OffsetX + meta.Width > base_info.Width ||
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meta.OffsetY + meta.Height > base_info.Height)
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throw new InvalidFormatException ("Incompatible baseline image dimensions");
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base_info.FileName = name;
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using (var reader = new PgdReader (base_file, base_info))
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{
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image = reader.UnpackGE();
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format = reader.Format;
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}
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}
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using (var reader = new PgdReader (stream, meta))
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overlay = reader.UnpackOverlay();
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int overlay_bpp = meta.BPP / 8;
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int base_bpp = format.BitsPerPixel / 8;
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int dst = (meta.OffsetY * (int)base_info.Width + meta.OffsetX) * base_bpp;
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int gap = (int)(base_info.Width - meta.Width) * base_bpp;
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int src = 0;
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bool apply_alpha = overlay_bpp == 4 && base_bpp == 4;
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for (uint y = 0; y < meta.Height; ++y)
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{
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for (uint x = 0; x < meta.Width; ++x)
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{
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image[dst ] ^= overlay[src ];
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image[dst+1] ^= overlay[src+1];
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image[dst+2] ^= overlay[src+2];
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if (apply_alpha)
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image[dst+3] ^= overlay[src+3];
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dst += base_bpp;
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src += overlay_bpp;
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}
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dst += gap;
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}
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base_info.FileName = meta.FileName;
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return ImageData.Create (base_info, format, null, image);
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}
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public override void Write (Stream file, ImageData image)
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{
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throw new NotImplementedException ("Pgd3Format.Write not implemented");
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}
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}
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internal sealed class PgdReader : IDisposable
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{
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BinaryReader 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_bpp;
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int m_method;
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public PixelFormat Format { get; private set; }
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public PgdReader (Stream input, int position)
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{
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input.Position = position;
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m_input = new ArcView.Reader (input);
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int unpacked_size = m_input.ReadInt32();
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m_input.ReadInt32(); // packed_size
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m_output = new byte[unpacked_size];
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}
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public PgdReader (Stream input, PgdGeMetaData info) : this (input, 0x20)
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{
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m_width = (int)info.Width;
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m_height = (int)info.Height;
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m_method = info.Method;
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}
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public PgdReader (Stream input, PgdIncMetaData info) : this (input, 0x30)
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{
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m_width = (int)info.Width;
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m_height = (int)info.Height;
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m_bpp = info.BPP;
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}
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public byte[] UnpackGE ()
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{
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UnpackGePre();
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switch (m_method)
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{
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case 1: return PostProcess1 (m_output);
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case 2: return PostProcess2 (m_output);
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case 3: return PostProcess3 (m_output);
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default: throw new NotSupportedException ("Not supported PGD compression");
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}
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}
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public byte[] UnpackOverlay ()
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{
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UnpackGePre();
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return PostProcessPal (m_output, 0, m_bpp / 8);
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}
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public byte[] Unpack00 ()
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{
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return Unpack (3000);
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}
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public byte[] Unpack11 ()
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{
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return Unpack (0xFFC);
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}
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byte[] Unpack (int look_behind)
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{
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int dst = 0;
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int ctl = 2;
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while (dst < m_output.Length)
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{
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ctl >>= 1;
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if (1 == ctl)
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{
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ctl = m_input.ReadByte() | 0x100;
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}
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int count;
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if (0 != (ctl & 1))
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{
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int src = m_input.ReadUInt16();
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count = m_input.ReadByte();
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if (dst > look_behind)
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src += dst - look_behind;
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Binary.CopyOverlapped (m_output, src, dst, count);
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}
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else
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{
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count = m_input.ReadByte();
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m_input.Read (m_output, dst, count);
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}
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dst += count;
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}
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return m_output;
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}
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byte[] UnpackGePre ()
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{
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int dst = 0;
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int ctl = 2;
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while (dst < m_output.Length)
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{
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ctl >>= 1;
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if (1 == ctl)
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ctl = m_input.ReadByte() | 0x100;
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int count;
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if (0 != (ctl & 1))
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{
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int offset = m_input.ReadUInt16();
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count = offset & 7;
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if (0 == (offset & 8))
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{
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count = count << 8 | m_input.ReadByte();
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}
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count += 4;
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offset >>= 4;
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Binary.CopyOverlapped (m_output, dst - offset, dst, count);
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}
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else
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{
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count = m_input.ReadByte();
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m_input.Read (m_output, dst, count);
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}
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dst += count;
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}
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return m_output;
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}
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byte[] PostProcess1 (byte[] input)
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{
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Format = PixelFormats.Bgra32;
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var output = new byte[input.Length];
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int plane_size = input.Length / 4;
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int a_src = 0;
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int r_src = plane_size;
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int g_src = 2 * plane_size;
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int b_src = 3 * plane_size;
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int dst = 0;
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for (int i = 0; i < plane_size; ++i)
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{
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output[dst++] = input[b_src+i];
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output[dst++] = input[g_src+i];
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output[dst++] = input[r_src+i];
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output[dst++] = input[a_src+i];
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}
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return output;
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}
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byte[] PostProcess2 (byte[] input)
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{
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Format = PixelFormats.Bgr24;
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int stride = m_width * 3;
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int segment_size = m_width * m_height / 4;
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int src0 = 0;
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int src1 = segment_size;
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int src2 = segment_size + src1;
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var output = new byte[stride * m_height];
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int dst = 0;
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int[] points = { 0, 1, m_width, m_width + 1 };
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for (int y = m_height / 2; y > 0; --y)
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{
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for (int x = m_width / 2; x > 0; --x)
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{
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sbyte i0 = (sbyte)input[src0];
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sbyte i1 = (sbyte)input[src1];
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int b = 226 * i0;
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int g = -43 * i0 - 89 * i1;
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int r = 179 * i1;
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++src0;
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++src1;
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for (int i = 0; i < points.Length; ++i)
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{
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int offset = points[i];
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int base_value = input[src2+offset] << 7;
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offset = dst + 3 * offset;
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output[offset++] = Clamp ((base_value + b) >> 7);
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output[offset++] = Clamp ((base_value + g) >> 7);
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output[offset++] = Clamp ((base_value + r) >> 7);
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}
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src2 += 2;
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dst += 6;
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}
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src2 += m_width;
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dst += stride;
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}
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return output;
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}
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static byte Clamp (int val)
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{
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if (val > 255) val = 255;
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else if (val < 0) val = 0;
|
|
return (byte)val;
|
|
}
|
|
|
|
byte[] PostProcess3 (byte[] input)
|
|
{
|
|
int bpp = LittleEndian.ToUInt16 (input, 2);
|
|
if (32 == bpp)
|
|
Format = PixelFormats.Bgra32;
|
|
else if (24 == bpp)
|
|
Format = PixelFormats.Bgr24;
|
|
else
|
|
throw new InvalidFormatException();
|
|
m_width = LittleEndian.ToUInt16 (input, 4);
|
|
m_height = LittleEndian.ToUInt16 (input, 6);
|
|
return PostProcessPal (input, 8, bpp / 8);
|
|
}
|
|
|
|
byte[] PostProcessPal (byte[] input, int src, int pixel_size)
|
|
{
|
|
int stride = m_width * pixel_size;
|
|
var output = new byte[m_height * stride];
|
|
int ctl = src;
|
|
src += m_height;
|
|
int dst = 0;
|
|
for (int row = 0; row < m_height; ++row)
|
|
{
|
|
byte c = input[ctl++];
|
|
if (0 != (c & 1))
|
|
{
|
|
int prev = dst;
|
|
Buffer.BlockCopy (input, src, output, dst, pixel_size);
|
|
src += pixel_size;
|
|
dst += pixel_size;
|
|
int count = stride - pixel_size;
|
|
while (count --> 0)
|
|
{
|
|
output[dst++] = (byte)(output[prev++] - input[src++]);
|
|
}
|
|
}
|
|
else if (0 != (c & 2))
|
|
{
|
|
int prev = dst - stride;
|
|
int count = stride;
|
|
while (count --> 0)
|
|
{
|
|
output[dst++] = (byte)(output[prev++] - input[src++]);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Buffer.BlockCopy (input, src, output, dst, pixel_size);
|
|
dst += pixel_size;
|
|
src += pixel_size;
|
|
int prev = dst - stride;
|
|
int count = stride - pixel_size;
|
|
while (count --> 0)
|
|
{
|
|
output[dst] = (byte)((output[prev++] + output[dst-pixel_size]) / 2 - input[src++]);
|
|
++dst;
|
|
}
|
|
}
|
|
}
|
|
return output;
|
|
}
|
|
|
|
#region IDisposable Members
|
|
bool _disposed = false;
|
|
public void Dispose ()
|
|
{
|
|
if (!_disposed)
|
|
{
|
|
m_input.Dispose();
|
|
_disposed = true;
|
|
}
|
|
}
|
|
#endregion
|
|
}
|
|
}
|