2022-04-29 13:02:06 +04:00

101 lines
3.7 KiB
C#

//! \file ImageLSG.cs
//! \date 2022 Apr 12
//! \brief Kogado image format.
//
// Copyright (C) 2022 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
using System.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
using System.Windows.Media.Imaging;
namespace GameRes.Formats.Kogado
{
internal class LsgMetaData : ImageMetaData
{
public int BitmapSize;
}
[Export(typeof(ImageFormat))]
public class LsgFormat : ImageFormat
{
public override string Tag { get { return "LSG"; } }
public override string Description { get { return "Kogado image format"; } }
public override uint Signature { get { return 0x4D42; } } // 'BM'
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0x14);
var info = new LsgMetaData {
Width = header.ToUInt32 (0x0C),
Height = header.ToUInt32 (0x10),
BPP = header.ToInt32 (8),
BitmapSize = header.ToInt32 (4),
};
if (info.BPP != 8 && info.BPP != 24)
return null;
return info;
}
static readonly string DefaultPaletteName = "base.pal";
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var meta = (LsgMetaData)info;
file.Position = 0x14;
var pixels = file.ReadBytes (meta.BitmapSize);
PixelFormat format;
BitmapPalette palette = null;
if (meta.BPP == 8)
{
format = PixelFormats.Indexed8;
palette = ReadDefaultPalette (file.Name);
if (null == palette)
format = PixelFormats.Gray8;
}
else
{
format = PixelFormats.Bgr24;
}
return ImageData.Create (info, format, palette, pixels);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("LsgFormat.Write not implemented");
}
internal BitmapPalette ReadDefaultPalette (string filename)
{
var pal_name = Path.ChangeExtension (filename, ".pal");
if (!VFS.FileExists (pal_name))
pal_name = VFS.ChangeFileName (filename, DefaultPaletteName);
if (!VFS.FileExists (pal_name))
return null;
using (var input = VFS.OpenStream (pal_name))
{
return ReadPalette (input, 0x100, PaletteFormat.Rgb);
}
}
}
}