/// <summary>
/// Decodes a <see cref="VncPixelFormat"/> from a <see cref="byte"/> array.
/// </summary>
/// <param name="buffer">
/// The <see cref="byte"/> array which contains the <see cref="VncPixelFormat"/> data.
/// </param>
/// <param name="offset">
/// The first index in the <paramref name="buffer"/> which contains the <see cref="VncPixelFormat"/>
/// data.
/// </param>
/// <returns>
/// A <see cref="VncPixelFormat"/> object.
/// </returns>
internal static VncPixelFormat Decode(byte[] buffer, int offset)
{
var bitsPerPixel = buffer[offset + 0];
var depth = buffer[offset + 1];
var isLittleEndian = buffer[offset + 2] == 0;
var isPalettized = buffer[offset + 3] == 0;
var redBits = BitsFromMax(VncUtility.DecodeUInt16BE(buffer, offset + 4));
var greenBits = BitsFromMax(VncUtility.DecodeUInt16BE(buffer, offset + 6));
var blueBits = BitsFromMax(VncUtility.DecodeUInt16BE(buffer, offset + 8));
var redShift = buffer[offset + 10];
var greenShift = buffer[offset + 11];
var blueShift = buffer[offset + 12];
return(new VncPixelFormat(
bitsPerPixel,
depth,
redBits,
redShift,
greenBits,
greenShift,
blueBits,
blueShift,
isLittleEndian,
isPalettized));
}
/// <summary>
/// Reads a <see cref="ushort"/> in big-endian encoding from the stream and advances the
/// position within the stream by two bytes.
/// </summary>
/// <returns>
/// The <see cref="ushort"/> which was read from the stream.
/// </returns>
public ushort ReceiveUInt16BE()
{
return(VncUtility.DecodeUInt16BE(this.Receive(2), 0));
}