GARbro-mirror/ArcFormats/Xuse/ImageP.cs

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2023-08-24 05:33:50 +08:00
//! \file ImageP.cs
//! \date 2022 May 07
//! \brief Obfuscated PNG file.
//
// 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;
namespace GameRes.Formats.Xuse
{
[Export(typeof(ImageFormat))]
public class P4AGFormat : ImageFormat
{
public override string Tag { get { return "P/4AG"; } }
public override string Description { get { return "Xuse/Eternal obfuscated PNG image"; } }
public override uint Signature { get { return 0x0A0D474E; } } // 'NG\n\r'
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
using (var input = OpenAsPng (file))
return Png.ReadMetaData (input);
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
using (var input = OpenAsPng (file))
return Png.Read (input, info);
}
static readonly byte[] HeaderBytes = new byte[2] { PngFormat.HeaderBytes[0], PngFormat.HeaderBytes[1] };
internal IBinaryStream OpenAsPng (IBinaryStream file)
{
var input = new PrefixStream (HeaderBytes, file.AsStream, true);
return new BinaryStream (input, file.Name);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("P4AGFormat.Write not implemented");
}
}
}