PixelInformation.cs

using SkiaSharp;
 
namespace Waher.Script.Graphs
{
    public abstract class PixelInformation
    {
        private readonly byte[] binary;
        private readonly int width;
        private readonly int height;
 
        public PixelInformation(byte[] Binary, int Width, int Height)
        {
            this.binary = Binary;
            this.width = Width;
            this.height = Height;
        }
 
        public byte[] Binary => this.binary;
 
        public int Width => this.width;
 
        public int Height => this.height;
 
        public static PixelInformation FromImage(SKImage Image)
        {
            using (SKData Data = Image.Encode())
            {
                return new PixelInformationPng(Data.ToArray(), Image.Width, Image.Height);
            }
        }
 
        public static PixelInformation FromRaw(SKColorType ColorType, byte[] Binary, int Width, int Height, int BytesPerRow)
        {
            return new PixelInformationRaw(ColorType, Binary, Width, Height, BytesPerRow);
        }
 
        public abstract SKImage CreateBitmap();
 
        public virtual byte[] EncodeAsPng()
        {
            using (SKImage Image = this.CreateBitmap())
            {
                using (SKData Data = Image.Encode())
                {
                    return Data.ToArray();
                }
            }
        }
 
        public abstract PixelInformationRaw GetRaw();
 
    }
}