private BaseDecoder GetDecoder(RfbEncodingType enc)
{
switch (enc)
{
case RfbEncodingType.Raw:
return(RawDecoder);
case RfbEncodingType.CopyRect:
return(CopyRectDecoder);
case RfbEncodingType.Zlib:
return(ZlibDecoder);
case RfbEncodingType.ZRLE:
return(ZrleDecoder);
default:
throw new NotImplementedException();
}
}
public EncodedRectangle(RfbProtocol rfb, Framebuffer framebuffer, Rectangle rectangle, RfbEncodingType encoding)
{
this.rfb = rfb ?? throw new ArgumentNullException(nameof(rfb));
Framebuffer = framebuffer ?? throw new ArgumentNullException(nameof(framebuffer));
this.rectangle = rectangle;
EncodingType = encoding;
//Select appropriate reader
var reader = encoding == RfbEncodingType.ZRLE ? rfb.ZrleReader : rfb.Reader;
// Create the appropriate PixelReader depending on screen size and encoding
switch (framebuffer.BitsPerPixel)
{
case 32:
if (encoding == RfbEncodingType.ZRLE)
{
preader = new CPixelReader(reader, framebuffer);
}
else
{
preader = new PixelReader32(reader, framebuffer);
}
break;
case 16:
preader = new PixelReader16(reader, framebuffer);
break;
case 8:
preader = new PixelReader8(reader, framebuffer, rfb);
break;
default:
throw new ArgumentOutOfRangeException("BitsPerPixel", framebuffer.BitsPerPixel, "Valid VNC Pixel Widths are 8, 16 or 32 bits.");
}
}
/// <summary>
/// Creates an object type derived from EncodedRectangle, based on the value of encoding.
/// </summary>
/// <param name="r">A Rectangle object defining the bounds of the rectangle to be created</param>
/// <param name="encoding">An Integer indicating the encoding type to be used for this rectangle. Used to determine the type of EncodedRectangle to create.</param>
/// <returns></returns>
public static EncodedRectangle Build(RfbProtocol rfb, Framebuffer framebuffer, Rectangle r, RfbEncodingType encoding)
{
switch (encoding)
{
case RfbEncodingType.Raw:
return(new RawRectangle(rfb, framebuffer, r));
case RfbEncodingType.CopyRect:
return(new CopyRectRectangle(rfb, framebuffer, r));
case RfbEncodingType.RRE:
return(new RreRectangle(rfb, framebuffer, r));
case RfbEncodingType.CoRRE:
return(new CoRreRectangle(rfb, framebuffer, r));
case RfbEncodingType.Hextile:
return(new HextileRectangle(rfb, framebuffer, r));
case RfbEncodingType.ZRLE:
return(new ZrleRectangle(rfb, framebuffer, r));
default:
throw new InvalidOperationException($"Unsupported encoding: {encoding}.");
}
}
public RfbRectangle(Rectangle r, RfbEncodingType e)
{
Rectangle = r;
EncodingType = e;
}
