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morkt 13cf289bae (ImageFormat.ReadPalette): new static methods.
Generalized image palette deserializations.
2017-01-14 16:27:11 +04:00

81 lines
3.1 KiB
C#

//! \file ImageLGF.cs
//! \date Sat Sep 03 15:03:06 2016
//! \brief Leaf image format.
//
// Copyright (C) 2016 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;
using GameRes.Utility;
namespace GameRes.Formats.Leaf
{
[Export(typeof(ImageFormat))]
public class LgfFormat : ImageFormat
{
public override string Tag { get { return "LGF"; } }
public override string Description { get { return "Leaf image format"; } }
public override uint Signature { get { return 0; } }
public LgfFormat ()
{
// fourth byte is BPP
Signatures = new uint[] { 0x1866676C, 0x2066676C, 0x0966676C };
}
public override ImageMetaData ReadMetaData (IBinaryStream stream)
{
var header = stream.ReadHeader (8);
int bpp = header[3];
return new ImageMetaData
{
Width = header.ToUInt16 (4),
Height = header.ToUInt16 (6),
BPP = 9 == bpp ? 8 : bpp,
};
}
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
{
int stride = (int)info.Width * info.BPP / 8;
var pixels = new byte[stride * (int)info.Height];
stream.Position = 12;
BitmapPalette palette = null;
if (8 == info.BPP)
palette = ReadPalette (stream.AsStream, 0x100, PaletteFormat.RgbX);
if (pixels.Length != stream.Read (pixels, 0, pixels.Length))
throw new EndOfStreamException();
PixelFormat format = 24 == info.BPP ? PixelFormats.Bgr24
: 32 == info.BPP ? PixelFormats.Bgr32
: PixelFormats.Indexed8;
return ImageData.Create (info, format, palette, pixels);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("LgfFormat.Write not implemented");
}
}
}