GARbro-mirror/Legacy/KeroQ/ImageCBM.cs

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2018-08-24 03:56:39 +08:00
//! \file ImageCBM.cs
//! \date 2018 Aug 22
//! \brief KeroQ bitmap format.
//
// Copyright (C) 2018 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.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
using System.Windows.Media.Imaging;
namespace GameRes.Formats.KeroQ
{
[Export(typeof(ImageFormat))]
public class CbmFormat : ImageFormat
{
public override string Tag { get { return "CBM"; } }
public override string Description { get { return "KeroQ bitmap format"; } }
public override uint Signature { get { return 0x004D4243; } } // 'CBM'
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0x10);
var length = header.ToUInt32 (0xC);
if (file.Length - 0x10 != length)
return null;
return new ImageMetaData {
Width = header.ToUInt32 (4),
Height = header.ToUInt32 (8),
BPP = 8,
};
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
BitmapPalette palette = null;
PixelFormat format = PixelFormats.Gray8;
foreach (var pal_name in GetPaletteNames (info.FileName))
{
if (!VFS.FileExists (pal_name))
continue;
try
{
using (var pal = VFS.OpenStream (pal_name))
{
palette = ReadPalette (pal, 0x100, PaletteFormat.Bgr);
format = PixelFormats.Indexed8;
}
}
catch { /* ignore palette read errors */ }
break;
}
file.Position = 0x10;
var pixels = file.ReadBytes ((int)info.Width * (int)info.Height);
return ImageData.Create (info, format, palette, pixels);
}
IEnumerable<string> GetPaletteNames (string filename)
{
var base_name = Path.GetFileNameWithoutExtension (filename);
yield return VFS.ChangeFileName (filename, base_name + ".pal");
if (base_name.Length > 3)
base_name = base_name.Substring (0, 3);
yield return VFS.ChangeFileName (filename, base_name + ".pal");
yield return VFS.ChangeFileName (filename, base_name + "_2.pal");
yield return VFS.ChangeFileName (filename, base_name + "_1.pal");
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("CbmFormat.Write not implemented");
}
}
}