GARbro-mirror/ArcFormats/Basil/ImageNG3.cs

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//! \file ImageNG3.cs
//! \date 2018 Jul 12
//! \brief BasiL image 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.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
namespace GameRes.Formats.Basil
{
[Export(typeof(ImageFormat))]
public class Ng3Format : ImageFormat
{
public override string Tag { get { return "NG3"; } }
public override string Description { get { return "BasiL image format"; } }
public override uint Signature { get { return 0x33474E; } } // 'NG3'
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0xC);
return new ImageMetaData {
Width = header.ToUInt32 (4),
Height = header.ToUInt32 (8),
BPP = 24,
};
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
file.Position = 0xC;
var palette = ReadColorMap (file.AsStream, 256, PaletteFormat.Bgr);
int stride = (int)info.Width * 3;
var pixels = new byte[stride * (int)info.Height];
int dst = 0;
while (dst < pixels.Length)
{
int ctl = file.PeekByte();
if (-1 == ctl)
break;
if (1 == ctl)
{
file.ReadByte();
int idx = file.ReadByte();
var color = palette[idx];
pixels[dst ] = color.B;
pixels[dst+1] = color.G;
pixels[dst+2] = color.R;
dst += 3;
}
else if (2 == ctl)
{
file.ReadByte();
int idx = file.ReadByte();
int count = file.ReadByte();
var color = palette[idx];
for (int i = 0; i < count; ++i)
{
pixels[dst ] = color.B;
pixels[dst+1] = color.G;
pixels[dst+2] = color.R;
dst += 3;
}
}
else
{
file.Read (pixels, dst, 3);
dst += 3;
}
}
return ImageData.CreateFlipped (info, PixelFormats.Bgr24, null, pixels, stride);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("Ng3Format.Write not implemented");
}
}
}