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implemented LNK archives PRT images and WAF audio.
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morkt
186
ArcFormats/Kid/ImagePRT.cs
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186
ArcFormats/Kid/ImagePRT.cs
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//! \file ImagePRT.cs
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//! \date 2018 Nov 18
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//! \brief KID image format.
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//
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// Copyright (C) 2018 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 System.Windows.Media.Imaging;
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namespace GameRes.Formats.Kid
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{
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internal class PrtMetaData : ImageMetaData
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{
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public int Version;
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public ushort PaletteOffset;
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public ushort DataOffset;
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public bool HasAlpha;
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}
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[Export(typeof(ImageFormat))]
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public class PrtFormat : ImageFormat
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{
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public override string Tag { get { return "PRT"; } }
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public override string Description { get { return "KID image format"; } }
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public override uint Signature { get { return 0x545250; } } // 'PRT'
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public PrtFormat ()
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{
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Extensions = new[] { "prt", "cps" };
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}
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public override ImageMetaData ReadMetaData (IBinaryStream file)
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{
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var header = file.ReadHeader (0x14);
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int version = header.ToUInt16 (4);
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if (version != 101 && version != 102)
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return null;
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var info = new PrtMetaData {
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Width = header.ToUInt16 (0xC),
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Height = header.ToUInt16 (0xE),
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BPP = header.ToUInt16 (6),
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Version = version,
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PaletteOffset = header.ToUInt16 (8),
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DataOffset = header.ToUInt16 (0xA),
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HasAlpha = header.ToInt32 (0x10) != 0,
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};
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if (102 == version)
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{
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info.OffsetX = file.ReadInt32();
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info.OffsetY = file.ReadInt32();
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}
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return info;
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}
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public override ImageData Read (IBinaryStream file, ImageMetaData info)
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{
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var reader = new PrtReader (file, (PrtMetaData)info);
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return reader.GetImage();
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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 ("PrtFormat.Write not implemented");
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}
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}
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internal class PrtReader
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{
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IBinaryStream m_input;
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PrtMetaData m_info;
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int m_stride;
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PixelFormat Format { get; set; }
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BitmapPalette Palette { get; set; }
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public PrtReader (IBinaryStream input, PrtMetaData info)
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{
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m_input = input;
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m_info = info;
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m_stride = ((int)info.Width * (info.BPP / 8) + 3) & ~3;
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}
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public ImageData GetImage ()
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{
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if (8 == m_info.BPP)
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{
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m_input.Position = m_info.PaletteOffset;
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Palette = ImageFormat.ReadPalette (m_input.AsStream);
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Format = PixelFormats.Indexed8;
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}
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else if (24 == m_info.BPP)
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Format = PixelFormats.Bgr24;
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else if (32 == m_info.BPP)
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Format = PixelFormats.Bgr32;
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else
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throw new InvalidFormatException();
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m_input.Position = m_info.DataOffset;
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var pixels = m_input.ReadBytes (m_stride * (int)m_info.Height);
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if (!m_info.HasAlpha)
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return ImageData.CreateFlipped (m_info, Format, Palette, pixels, m_stride);
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var alpha = m_input.ReadBytes ((int)m_info.Width * (int)m_info.Height);
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if (8 == m_info.BPP)
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pixels = ApplyAlphaIndexed (pixels, alpha);
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else
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pixels = ApplyAlphaRgb (pixels, alpha);
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return ImageData.Create (m_info, PixelFormats.Bgra32, null, pixels);
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}
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byte[] ApplyAlphaIndexed (byte[] input, byte[] alpha)
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{
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int width = (int)m_info.Width;
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int dst_stride = width * 4;
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var output = new byte[dst_stride * (int)m_info.Height];
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int dst_row = 0;
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int scr_row = input.Length - m_stride;
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int asrc = 0;
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var colors = Palette.Colors;
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while (dst_row < output.Length)
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{
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int dst = dst_row;
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for (int x = 0; x < width; ++x)
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{
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var color = colors[input[scr_row+x]];
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output[dst++] = color.B;
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output[dst++] = color.G;
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output[dst++] = color.R;
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output[dst++] = alpha[asrc++];
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}
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dst_row += dst_stride;
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scr_row -= m_stride;
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}
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return output;
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}
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byte[] ApplyAlphaRgb (byte[] input, byte[] alpha)
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{
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int src_pixel_size = m_info.BPP / 8;
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int width = (int)m_info.Width;
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int dst_stride = width * 4;
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var output = new byte[dst_stride * (int)m_info.Height];
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int dst_row = 0;
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int src_row = input.Length - m_stride;
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int asrc = 0;
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while (dst_row < output.Length)
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{
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int dst = dst_row;
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int src = src_row;
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for (int x = 0; x < width; ++x)
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{
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output[dst++] = input[src ];
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output[dst++] = input[src+1];
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output[dst++] = input[src+2];
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output[dst++] = alpha[asrc++];
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src += src_pixel_size;
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}
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dst_row += dst_stride;
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src_row -= m_stride;
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}
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return output;
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}
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}
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}
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