//! \file       ImageMSK.cs
//! \date       Sat Dec 03 01:35:46 2016
//! \brief      Cvns engine grayscale 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
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// 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.Purple
{
    [Export(typeof(ImageFormat))]
    public class MskFormat : ImageFormat
    {
        public override string         Tag { get { return "MSK0"; } }
        public override string Description { get { return "Cvns engine grayscale image format"; } }
        public override uint     Signature { get { return 0x304B534D; } } // 'MSK0'

        public MskFormat ()
        {
            Extensions = new string[] { "msk" };
        }

        public override ImageMetaData ReadMetaData (IBinaryStream file)
        {
            var header = file.ReadHeader (0x10);
            return new ImageMetaData
            {
                Width = header.ToUInt32 (8),
                Height = header.ToUInt32 (0xC),
                BPP = 8,
            };
        }

        public override ImageData Read (IBinaryStream file, ImageMetaData info)
        {
            file.Position = 0x10;
            var pixels = file.ReadBytes ((int)info.Width * (int)info.Height);
            return ImageData.Create (info, PixelFormats.Gray8, null, pixels);
        }

        public override void Write (Stream file, ImageData image)
        {
            throw new System.NotImplementedException ("MskFormat.Write not implemented");
        }
    }
}
