GARbro-mirror/ArcFormats/Rits/ImageHBM.cs

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2018-10-19 02:59:39 +08:00
//! \file ImageHBM.cs
//! \date 2018 Oct 18
//! \brief Rits engine 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;
using GameRes.Compression;
namespace GameRes.Formats.Rits
{
internal class HbmMetaData : ImageMetaData
{
public bool IsCompressed;
public bool IsFlipped;
}
[Export(typeof(ImageFormat))]
public class HbmFormat : ImageFormat
{
public override string Tag { get { return "HBM"; } }
public override string Description { get { return "Rit's image format"; } }
public override uint Signature { get { return 0x4D4248; } } // 'HBM'
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0x10);
return new HbmMetaData {
Width = header.ToUInt32 (4),
Height = header.ToUInt32 (8),
BPP = 16,
IsCompressed = (header[12] & 0x10) != 0,
IsFlipped = (header[12] & 0x20) != 0,
};
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var meta = (HbmMetaData)info;
int stride = (2 * (int)meta.Width + 3) & ~3;
var pixels = new byte[stride * (int)meta.Height];
Stream input = file.AsStream;
if (meta.IsCompressed)
{
input.Position = 0x14;
input = new ZLibStream (input, CompressionMode.Decompress, true);
}
else
input.Position = 0x10;
if (meta.IsFlipped)
{
for (int dst = pixels.Length - stride; dst >= 0; dst -= stride)
input.Read (pixels, dst, stride);
}
else
input.Read (pixels, 0, pixels.Length);
if (input != file.AsStream)
input.Dispose();
return ImageData.Create (info, PixelFormats.Bgr555, null, pixels, stride);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("HbmFormat.Write not implemented");
}
}
}