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101 lines
3.7 KiB
C#
101 lines
3.7 KiB
C#
//! \file ImageLSG.cs
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//! \date 2022 Apr 12
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//! \brief Kogado image format.
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//
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// Copyright (C) 2022 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 System.Windows.Media.Imaging;
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namespace GameRes.Formats.Kogado
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{
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internal class LsgMetaData : ImageMetaData
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{
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public int BitmapSize;
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}
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[Export(typeof(ImageFormat))]
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public class LsgFormat : ImageFormat
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{
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public override string Tag { get { return "LSG"; } }
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public override string Description { get { return "Kogado image format"; } }
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public override uint Signature { get { return 0x4D42; } } // 'BM'
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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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var info = new LsgMetaData {
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Width = header.ToUInt32 (0x0C),
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Height = header.ToUInt32 (0x10),
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BPP = header.ToInt32 (8),
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BitmapSize = header.ToInt32 (4),
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};
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if (info.BPP != 8 && info.BPP != 24)
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return null;
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return info;
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}
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static readonly string DefaultPaletteName = "base.pal";
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public override ImageData Read (IBinaryStream file, ImageMetaData info)
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{
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var meta = (LsgMetaData)info;
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file.Position = 0x14;
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var pixels = file.ReadBytes (meta.BitmapSize);
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PixelFormat format;
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BitmapPalette palette = null;
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if (meta.BPP == 8)
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{
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format = PixelFormats.Indexed8;
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palette = ReadDefaultPalette (file.Name);
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if (null == palette)
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format = PixelFormats.Gray8;
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}
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else
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{
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format = PixelFormats.Bgr24;
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}
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return ImageData.Create (info, format, palette, pixels);
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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 ("LsgFormat.Write not implemented");
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}
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internal BitmapPalette ReadDefaultPalette (string filename)
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{
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var pal_name = Path.ChangeExtension (filename, ".pal");
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if (!VFS.FileExists (pal_name))
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pal_name = VFS.ChangeFileName (filename, DefaultPaletteName);
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if (!VFS.FileExists (pal_name))
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return null;
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using (var input = VFS.OpenStream (pal_name))
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{
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return ReadPalette (input, 0x100, PaletteFormat.Rgb);
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}
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}
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}
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}
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