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125 lines
4.6 KiB
C#
125 lines
4.6 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.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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stream.Position = 0x20;
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using (var reader = new ArcView.Reader (stream))
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{
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int unpacked_size = reader.ReadInt32();
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reader.ReadInt32(); // packed_size
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var planes = Unpack (reader, unpacked_size);
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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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byte[] Unpack (BinaryReader input, int unpacked_size)
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{
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var output = new byte[unpacked_size];
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int dst = 0;
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int ctl = 2;
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while (dst < 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 = 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 = input.ReadUInt16();
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count = input.ReadByte();
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if (dst >= 0xFFC)
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src += dst - 0xFFC;
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Binary.CopyOverlapped (output, src, dst, count);
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}
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else
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{
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count = input.ReadByte();
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input.Read (output, dst, count);
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}
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dst += count;
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}
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return output;
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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 System.NotImplementedException ("Pgd11Format.Write not implemented");
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}
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}
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}
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